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OMAPDSS: VENC: fix NULL pointer dereference in DSS2 VENC sysfs debug attr on OMAP4
[zen-stable.git] / drivers / net / ethernet / freescale / ucc_geth.c
blobba2dc083bfc007fa416e3c714dd1e6350d59e99b
1 /*
2 * Copyright (C) 2006-2009 Freescale Semicondutor, Inc. All rights reserved.
3 *
4 * Author: Shlomi Gridish <gridish@freescale.com>
5 * Li Yang <leoli@freescale.com>
6 *
7 * Description:
8 * QE UCC Gigabit Ethernet Driver
9 *
10 * This program is free software; you can redistribute it and/or modify it
11 * under the terms of the GNU General Public License as published by the
12 * Free Software Foundation; either version 2 of the License, or (at your
13 * option) any later version.
14 */
15 #include <linux/kernel.h>
16 #include <linux/init.h>
17 #include <linux/errno.h>
18 #include <linux/slab.h>
19 #include <linux/stddef.h>
20 #include <linux/module.h>
21 #include <linux/interrupt.h>
22 #include <linux/netdevice.h>
23 #include <linux/etherdevice.h>
24 #include <linux/skbuff.h>
25 #include <linux/spinlock.h>
26 #include <linux/mm.h>
27 #include <linux/dma-mapping.h>
28 #include <linux/mii.h>
29 #include <linux/phy.h>
30 #include <linux/workqueue.h>
31 #include <linux/of_mdio.h>
32 #include <linux/of_net.h>
33 #include <linux/of_platform.h>
34
35 #include <asm/uaccess.h>
36 #include <asm/irq.h>
37 #include <asm/io.h>
38 #include <asm/immap_qe.h>
39 #include <asm/qe.h>
40 #include <asm/ucc.h>
41 #include <asm/ucc_fast.h>
42 #include <asm/machdep.h>
43
44 #include "ucc_geth.h"
45 #include "fsl_pq_mdio.h"
46
47 #undef DEBUG
48
49 #define ugeth_printk(level, format, arg...) \
50 printk(level format "\n", ## arg)
51
52 #define ugeth_dbg(format, arg...) \
53 ugeth_printk(KERN_DEBUG , format , ## arg)
54 #define ugeth_err(format, arg...) \
55 ugeth_printk(KERN_ERR , format , ## arg)
56 #define ugeth_info(format, arg...) \
57 ugeth_printk(KERN_INFO , format , ## arg)
58 #define ugeth_warn(format, arg...) \
59 ugeth_printk(KERN_WARNING , format , ## arg)
60
61 #ifdef UGETH_VERBOSE_DEBUG
62 #define ugeth_vdbg ugeth_dbg
63 #else
64 #define ugeth_vdbg(fmt, args...) do { } while (0)
65 #endif /* UGETH_VERBOSE_DEBUG */
66 #define UGETH_MSG_DEFAULT (NETIF_MSG_IFUP << 1 ) - 1
67
68
69 static DEFINE_SPINLOCK(ugeth_lock);
70
71 static struct {
72 u32 msg_enable;
73 } debug = { -1 };
74
75 module_param_named(debug, debug.msg_enable, int, 0);
76 MODULE_PARM_DESC(debug, "Debug verbosity level (0=none, ..., 0xffff=all)");
77
78 static struct ucc_geth_info ugeth_primary_info = {
79 .uf_info = {
80 .bd_mem_part = MEM_PART_SYSTEM,
81 .rtsm = UCC_FAST_SEND_IDLES_BETWEEN_FRAMES,
82 .max_rx_buf_length = 1536,
83 /* adjusted at startup if max-speed 1000 */
84 .urfs = UCC_GETH_URFS_INIT,
85 .urfet = UCC_GETH_URFET_INIT,
86 .urfset = UCC_GETH_URFSET_INIT,
87 .utfs = UCC_GETH_UTFS_INIT,
88 .utfet = UCC_GETH_UTFET_INIT,
89 .utftt = UCC_GETH_UTFTT_INIT,
90 .ufpt = 256,
91 .mode = UCC_FAST_PROTOCOL_MODE_ETHERNET,
92 .ttx_trx = UCC_FAST_GUMR_TRANSPARENT_TTX_TRX_NORMAL,
93 .tenc = UCC_FAST_TX_ENCODING_NRZ,
94 .renc = UCC_FAST_RX_ENCODING_NRZ,
95 .tcrc = UCC_FAST_16_BIT_CRC,
96 .synl = UCC_FAST_SYNC_LEN_NOT_USED,
97 },
98 .numQueuesTx = 1,
99 .numQueuesRx = 1,
100 .extendedFilteringChainPointer = ((uint32_t) NULL),
101 .typeorlen = 3072 /*1536 */ ,
102 .nonBackToBackIfgPart1 = 0x40,
103 .nonBackToBackIfgPart2 = 0x60,
104 .miminumInterFrameGapEnforcement = 0x50,
105 .backToBackInterFrameGap = 0x60,
106 .mblinterval = 128,
107 .nortsrbytetime = 5,
108 .fracsiz = 1,
109 .strictpriorityq = 0xff,
110 .altBebTruncation = 0xa,
111 .excessDefer = 1,
112 .maxRetransmission = 0xf,
113 .collisionWindow = 0x37,
114 .receiveFlowControl = 1,
115 .transmitFlowControl = 1,
116 .maxGroupAddrInHash = 4,
117 .maxIndAddrInHash = 4,
118 .prel = 7,
119 .maxFrameLength = 1518,
120 .minFrameLength = 64,
121 .maxD1Length = 1520,
122 .maxD2Length = 1520,
123 .vlantype = 0x8100,
124 .ecamptr = ((uint32_t) NULL),
125 .eventRegMask = UCCE_OTHER,
126 .pausePeriod = 0xf000,
127 .interruptcoalescingmaxvalue = {1, 1, 1, 1, 1, 1, 1, 1},
128 .bdRingLenTx = {
129 TX_BD_RING_LEN,
130 TX_BD_RING_LEN,
131 TX_BD_RING_LEN,
132 TX_BD_RING_LEN,
133 TX_BD_RING_LEN,
134 TX_BD_RING_LEN,
135 TX_BD_RING_LEN,
136 TX_BD_RING_LEN},
137
138 .bdRingLenRx = {
139 RX_BD_RING_LEN,
140 RX_BD_RING_LEN,
141 RX_BD_RING_LEN,
142 RX_BD_RING_LEN,
143 RX_BD_RING_LEN,
144 RX_BD_RING_LEN,
145 RX_BD_RING_LEN,
146 RX_BD_RING_LEN},
147
148 .numStationAddresses = UCC_GETH_NUM_OF_STATION_ADDRESSES_1,
149 .largestexternallookupkeysize =
150 QE_FLTR_LARGEST_EXTERNAL_TABLE_LOOKUP_KEY_SIZE_NONE,
151 .statisticsMode = UCC_GETH_STATISTICS_GATHERING_MODE_HARDWARE |
152 UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_TX |
153 UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_RX,
154 .vlanOperationTagged = UCC_GETH_VLAN_OPERATION_TAGGED_NOP,
155 .vlanOperationNonTagged = UCC_GETH_VLAN_OPERATION_NON_TAGGED_NOP,
156 .rxQoSMode = UCC_GETH_QOS_MODE_DEFAULT,
157 .aufc = UPSMR_AUTOMATIC_FLOW_CONTROL_MODE_NONE,
158 .padAndCrc = MACCFG2_PAD_AND_CRC_MODE_PAD_AND_CRC,
159 .numThreadsTx = UCC_GETH_NUM_OF_THREADS_1,
160 .numThreadsRx = UCC_GETH_NUM_OF_THREADS_1,
161 .riscTx = QE_RISC_ALLOCATION_RISC1_AND_RISC2,
162 .riscRx = QE_RISC_ALLOCATION_RISC1_AND_RISC2,
163 };
164
165 static struct ucc_geth_info ugeth_info[8];
166
167 #ifdef DEBUG
168 static void mem_disp(u8 *addr, int size)
169 {
170 u8 *i;
171 int size16Aling = (size >> 4) << 4;
172 int size4Aling = (size >> 2) << 2;
173 int notAlign = 0;
174 if (size % 16)
175 notAlign = 1;
176
177 for (i = addr; (u32) i < (u32) addr + size16Aling; i += 16)
178 printk("0x%08x: %08x %08x %08x %08x\r\n",
179 (u32) i,
180 *((u32 *) (i)),
181 *((u32 *) (i + 4)),
182 *((u32 *) (i + 8)), *((u32 *) (i + 12)));
183 if (notAlign == 1)
184 printk("0x%08x: ", (u32) i);
185 for (; (u32) i < (u32) addr + size4Aling; i += 4)
186 printk("%08x ", *((u32 *) (i)));
187 for (; (u32) i < (u32) addr + size; i++)
188 printk("%02x", *((u8 *) (i)));
189 if (notAlign == 1)
190 printk("\r\n");
191 }
192 #endif /* DEBUG */
193
194 static struct list_head *dequeue(struct list_head *lh)
195 {
196 unsigned long flags;
197
198 spin_lock_irqsave(&ugeth_lock, flags);
199 if (!list_empty(lh)) {
200 struct list_head *node = lh->next;
201 list_del(node);
202 spin_unlock_irqrestore(&ugeth_lock, flags);
203 return node;
204 } else {
205 spin_unlock_irqrestore(&ugeth_lock, flags);
206 return NULL;
207 }
208 }
209
210 static struct sk_buff *get_new_skb(struct ucc_geth_private *ugeth,
211 u8 __iomem *bd)
212 {
213 struct sk_buff *skb = NULL;
214
215 skb = __skb_dequeue(&ugeth->rx_recycle);
216 if (!skb)
217 skb = dev_alloc_skb(ugeth->ug_info->uf_info.max_rx_buf_length +
218 UCC_GETH_RX_DATA_BUF_ALIGNMENT);
219 if (skb == NULL)
220 return NULL;
221
222 /* We need the data buffer to be aligned properly. We will reserve
223 * as many bytes as needed to align the data properly
224 */
225 skb_reserve(skb,
226 UCC_GETH_RX_DATA_BUF_ALIGNMENT -
227 (((unsigned)skb->data) & (UCC_GETH_RX_DATA_BUF_ALIGNMENT -
228 1)));
229
230 skb->dev = ugeth->ndev;
231
232 out_be32(&((struct qe_bd __iomem *)bd)->buf,
233 dma_map_single(ugeth->dev,
234 skb->data,
235 ugeth->ug_info->uf_info.max_rx_buf_length +
236 UCC_GETH_RX_DATA_BUF_ALIGNMENT,
237 DMA_FROM_DEVICE));
238
239 out_be32((u32 __iomem *)bd,
240 (R_E | R_I | (in_be32((u32 __iomem*)bd) & R_W)));
241
242 return skb;
243 }
244
245 static int rx_bd_buffer_set(struct ucc_geth_private *ugeth, u8 rxQ)
246 {
247 u8 __iomem *bd;
248 u32 bd_status;
249 struct sk_buff *skb;
250 int i;
251
252 bd = ugeth->p_rx_bd_ring[rxQ];
253 i = 0;
254
255 do {
256 bd_status = in_be32((u32 __iomem *)bd);
257 skb = get_new_skb(ugeth, bd);
258
259 if (!skb) /* If can not allocate data buffer,
260 abort. Cleanup will be elsewhere */
261 return -ENOMEM;
262
263 ugeth->rx_skbuff[rxQ][i] = skb;
264
265 /* advance the BD pointer */
266 bd += sizeof(struct qe_bd);
267 i++;
268 } while (!(bd_status & R_W));
269
270 return 0;
271 }
272
273 static int fill_init_enet_entries(struct ucc_geth_private *ugeth,
274 u32 *p_start,
275 u8 num_entries,
276 u32 thread_size,
277 u32 thread_alignment,
278 unsigned int risc,
279 int skip_page_for_first_entry)
280 {
281 u32 init_enet_offset;
282 u8 i;
283 int snum;
284
285 for (i = 0; i < num_entries; i++) {
286 if ((snum = qe_get_snum()) < 0) {
287 if (netif_msg_ifup(ugeth))
288 ugeth_err("fill_init_enet_entries: Can not get SNUM.");
289 return snum;
290 }
291 if ((i == 0) && skip_page_for_first_entry)
292 /* First entry of Rx does not have page */
293 init_enet_offset = 0;
294 else {
295 init_enet_offset =
296 qe_muram_alloc(thread_size, thread_alignment);
297 if (IS_ERR_VALUE(init_enet_offset)) {
298 if (netif_msg_ifup(ugeth))
299 ugeth_err("fill_init_enet_entries: Can not allocate DPRAM memory.");
300 qe_put_snum((u8) snum);
301 return -ENOMEM;
302 }
303 }
304 *(p_start++) =
305 ((u8) snum << ENET_INIT_PARAM_SNUM_SHIFT) | init_enet_offset
306 | risc;
307 }
308
309 return 0;
310 }
311
312 static int return_init_enet_entries(struct ucc_geth_private *ugeth,
313 u32 *p_start,
314 u8 num_entries,
315 unsigned int risc,
316 int skip_page_for_first_entry)
317 {
318 u32 init_enet_offset;
319 u8 i;
320 int snum;
321
322 for (i = 0; i < num_entries; i++) {
323 u32 val = *p_start;
324
325 /* Check that this entry was actually valid --
326 needed in case failed in allocations */
327 if ((val & ENET_INIT_PARAM_RISC_MASK) == risc) {
328 snum =
329 (u32) (val & ENET_INIT_PARAM_SNUM_MASK) >>
330 ENET_INIT_PARAM_SNUM_SHIFT;
331 qe_put_snum((u8) snum);
332 if (!((i == 0) && skip_page_for_first_entry)) {
333 /* First entry of Rx does not have page */
334 init_enet_offset =
335 (val & ENET_INIT_PARAM_PTR_MASK);
336 qe_muram_free(init_enet_offset);
337 }
338 *p_start++ = 0;
339 }
340 }
341
342 return 0;
343 }
344
345 #ifdef DEBUG
346 static int dump_init_enet_entries(struct ucc_geth_private *ugeth,
347 u32 __iomem *p_start,
348 u8 num_entries,
349 u32 thread_size,
350 unsigned int risc,
351 int skip_page_for_first_entry)
352 {
353 u32 init_enet_offset;
354 u8 i;
355 int snum;
356
357 for (i = 0; i < num_entries; i++) {
358 u32 val = in_be32(p_start);
359
360 /* Check that this entry was actually valid --
361 needed in case failed in allocations */
362 if ((val & ENET_INIT_PARAM_RISC_MASK) == risc) {
363 snum =
364 (u32) (val & ENET_INIT_PARAM_SNUM_MASK) >>
365 ENET_INIT_PARAM_SNUM_SHIFT;
366 qe_put_snum((u8) snum);
367 if (!((i == 0) && skip_page_for_first_entry)) {
368 /* First entry of Rx does not have page */
369 init_enet_offset =
370 (in_be32(p_start) &
371 ENET_INIT_PARAM_PTR_MASK);
372 ugeth_info("Init enet entry %d:", i);
373 ugeth_info("Base address: 0x%08x",
374 (u32)
375 qe_muram_addr(init_enet_offset));
376 mem_disp(qe_muram_addr(init_enet_offset),
377 thread_size);
378 }
379 p_start++;
380 }
381 }
382
383 return 0;
384 }
385 #endif
386
387 static void put_enet_addr_container(struct enet_addr_container *enet_addr_cont)
388 {
389 kfree(enet_addr_cont);
390 }
391
392 static void set_mac_addr(__be16 __iomem *reg, u8 *mac)
393 {
394 out_be16(&reg[0], ((u16)mac[5] << 8) | mac[4]);
395 out_be16(&reg[1], ((u16)mac[3] << 8) | mac[2]);
396 out_be16(&reg[2], ((u16)mac[1] << 8) | mac[0]);
397 }
398
399 static int hw_clear_addr_in_paddr(struct ucc_geth_private *ugeth, u8 paddr_num)
400 {
401 struct ucc_geth_82xx_address_filtering_pram __iomem *p_82xx_addr_filt;
402
403 if (!(paddr_num < NUM_OF_PADDRS)) {
404 ugeth_warn("%s: Illagel paddr_num.", __func__);
405 return -EINVAL;
406 }
407
408 p_82xx_addr_filt =
409 (struct ucc_geth_82xx_address_filtering_pram __iomem *) ugeth->p_rx_glbl_pram->
410 addressfiltering;
411
412 /* Writing address ff.ff.ff.ff.ff.ff disables address
413 recognition for this register */
414 out_be16(&p_82xx_addr_filt->paddr[paddr_num].h, 0xffff);
415 out_be16(&p_82xx_addr_filt->paddr[paddr_num].m, 0xffff);
416 out_be16(&p_82xx_addr_filt->paddr[paddr_num].l, 0xffff);
417
418 return 0;
419 }
420
421 static void hw_add_addr_in_hash(struct ucc_geth_private *ugeth,
422 u8 *p_enet_addr)
423 {
424 struct ucc_geth_82xx_address_filtering_pram __iomem *p_82xx_addr_filt;
425 u32 cecr_subblock;
426
427 p_82xx_addr_filt =
428 (struct ucc_geth_82xx_address_filtering_pram __iomem *) ugeth->p_rx_glbl_pram->
429 addressfiltering;
430
431 cecr_subblock =
432 ucc_fast_get_qe_cr_subblock(ugeth->ug_info->uf_info.ucc_num);
433
434 /* Ethernet frames are defined in Little Endian mode,
435 therefore to insert */
436 /* the address to the hash (Big Endian mode), we reverse the bytes.*/
437
438 set_mac_addr(&p_82xx_addr_filt->taddr.h, p_enet_addr);
439
440 qe_issue_cmd(QE_SET_GROUP_ADDRESS, cecr_subblock,
441 QE_CR_PROTOCOL_ETHERNET, 0);
442 }
443
444 static inline int compare_addr(u8 **addr1, u8 **addr2)
445 {
446 return memcmp(addr1, addr2, ETH_ALEN);
447 }
448
449 #ifdef DEBUG
450 static void get_statistics(struct ucc_geth_private *ugeth,
451 struct ucc_geth_tx_firmware_statistics *
452 tx_firmware_statistics,
453 struct ucc_geth_rx_firmware_statistics *
454 rx_firmware_statistics,
455 struct ucc_geth_hardware_statistics *hardware_statistics)
456 {
457 struct ucc_fast __iomem *uf_regs;
458 struct ucc_geth __iomem *ug_regs;
459 struct ucc_geth_tx_firmware_statistics_pram *p_tx_fw_statistics_pram;
460 struct ucc_geth_rx_firmware_statistics_pram *p_rx_fw_statistics_pram;
461
462 ug_regs = ugeth->ug_regs;
463 uf_regs = (struct ucc_fast __iomem *) ug_regs;
464 p_tx_fw_statistics_pram = ugeth->p_tx_fw_statistics_pram;
465 p_rx_fw_statistics_pram = ugeth->p_rx_fw_statistics_pram;
466
467 /* Tx firmware only if user handed pointer and driver actually
468 gathers Tx firmware statistics */
469 if (tx_firmware_statistics && p_tx_fw_statistics_pram) {
470 tx_firmware_statistics->sicoltx =
471 in_be32(&p_tx_fw_statistics_pram->sicoltx);
472 tx_firmware_statistics->mulcoltx =
473 in_be32(&p_tx_fw_statistics_pram->mulcoltx);
474 tx_firmware_statistics->latecoltxfr =
475 in_be32(&p_tx_fw_statistics_pram->latecoltxfr);
476 tx_firmware_statistics->frabortduecol =
477 in_be32(&p_tx_fw_statistics_pram->frabortduecol);
478 tx_firmware_statistics->frlostinmactxer =
479 in_be32(&p_tx_fw_statistics_pram->frlostinmactxer);
480 tx_firmware_statistics->carriersenseertx =
481 in_be32(&p_tx_fw_statistics_pram->carriersenseertx);
482 tx_firmware_statistics->frtxok =
483 in_be32(&p_tx_fw_statistics_pram->frtxok);
484 tx_firmware_statistics->txfrexcessivedefer =
485 in_be32(&p_tx_fw_statistics_pram->txfrexcessivedefer);
486 tx_firmware_statistics->txpkts256 =
487 in_be32(&p_tx_fw_statistics_pram->txpkts256);
488 tx_firmware_statistics->txpkts512 =
489 in_be32(&p_tx_fw_statistics_pram->txpkts512);
490 tx_firmware_statistics->txpkts1024 =
491 in_be32(&p_tx_fw_statistics_pram->txpkts1024);
492 tx_firmware_statistics->txpktsjumbo =
493 in_be32(&p_tx_fw_statistics_pram->txpktsjumbo);
494 }
495
496 /* Rx firmware only if user handed pointer and driver actually
497 * gathers Rx firmware statistics */
498 if (rx_firmware_statistics && p_rx_fw_statistics_pram) {
499 int i;
500 rx_firmware_statistics->frrxfcser =
501 in_be32(&p_rx_fw_statistics_pram->frrxfcser);
502 rx_firmware_statistics->fraligner =
503 in_be32(&p_rx_fw_statistics_pram->fraligner);
504 rx_firmware_statistics->inrangelenrxer =
505 in_be32(&p_rx_fw_statistics_pram->inrangelenrxer);
506 rx_firmware_statistics->outrangelenrxer =
507 in_be32(&p_rx_fw_statistics_pram->outrangelenrxer);
508 rx_firmware_statistics->frtoolong =
509 in_be32(&p_rx_fw_statistics_pram->frtoolong);
510 rx_firmware_statistics->runt =
511 in_be32(&p_rx_fw_statistics_pram->runt);
512 rx_firmware_statistics->verylongevent =
513 in_be32(&p_rx_fw_statistics_pram->verylongevent);
514 rx_firmware_statistics->symbolerror =
515 in_be32(&p_rx_fw_statistics_pram->symbolerror);
516 rx_firmware_statistics->dropbsy =
517 in_be32(&p_rx_fw_statistics_pram->dropbsy);
518 for (i = 0; i < 0x8; i++)
519 rx_firmware_statistics->res0[i] =
520 p_rx_fw_statistics_pram->res0[i];
521 rx_firmware_statistics->mismatchdrop =
522 in_be32(&p_rx_fw_statistics_pram->mismatchdrop);
523 rx_firmware_statistics->underpkts =
524 in_be32(&p_rx_fw_statistics_pram->underpkts);
525 rx_firmware_statistics->pkts256 =
526 in_be32(&p_rx_fw_statistics_pram->pkts256);
527 rx_firmware_statistics->pkts512 =
528 in_be32(&p_rx_fw_statistics_pram->pkts512);
529 rx_firmware_statistics->pkts1024 =
530 in_be32(&p_rx_fw_statistics_pram->pkts1024);
531 rx_firmware_statistics->pktsjumbo =
532 in_be32(&p_rx_fw_statistics_pram->pktsjumbo);
533 rx_firmware_statistics->frlossinmacer =
534 in_be32(&p_rx_fw_statistics_pram->frlossinmacer);
535 rx_firmware_statistics->pausefr =
536 in_be32(&p_rx_fw_statistics_pram->pausefr);
537 for (i = 0; i < 0x4; i++)
538 rx_firmware_statistics->res1[i] =
539 p_rx_fw_statistics_pram->res1[i];
540 rx_firmware_statistics->removevlan =
541 in_be32(&p_rx_fw_statistics_pram->removevlan);
542 rx_firmware_statistics->replacevlan =
543 in_be32(&p_rx_fw_statistics_pram->replacevlan);
544 rx_firmware_statistics->insertvlan =
545 in_be32(&p_rx_fw_statistics_pram->insertvlan);
546 }
547
548 /* Hardware only if user handed pointer and driver actually
549 gathers hardware statistics */
550 if (hardware_statistics &&
551 (in_be32(&uf_regs->upsmr) & UCC_GETH_UPSMR_HSE)) {
552 hardware_statistics->tx64 = in_be32(&ug_regs->tx64);
553 hardware_statistics->tx127 = in_be32(&ug_regs->tx127);
554 hardware_statistics->tx255 = in_be32(&ug_regs->tx255);
555 hardware_statistics->rx64 = in_be32(&ug_regs->rx64);
556 hardware_statistics->rx127 = in_be32(&ug_regs->rx127);
557 hardware_statistics->rx255 = in_be32(&ug_regs->rx255);
558 hardware_statistics->txok = in_be32(&ug_regs->txok);
559 hardware_statistics->txcf = in_be16(&ug_regs->txcf);
560 hardware_statistics->tmca = in_be32(&ug_regs->tmca);
561 hardware_statistics->tbca = in_be32(&ug_regs->tbca);
562 hardware_statistics->rxfok = in_be32(&ug_regs->rxfok);
563 hardware_statistics->rxbok = in_be32(&ug_regs->rxbok);
564 hardware_statistics->rbyt = in_be32(&ug_regs->rbyt);
565 hardware_statistics->rmca = in_be32(&ug_regs->rmca);
566 hardware_statistics->rbca = in_be32(&ug_regs->rbca);
567 }
568 }
569
570 static void dump_bds(struct ucc_geth_private *ugeth)
571 {
572 int i;
573 int length;
574
575 for (i = 0; i < ugeth->ug_info->numQueuesTx; i++) {
576 if (ugeth->p_tx_bd_ring[i]) {
577 length =
578 (ugeth->ug_info->bdRingLenTx[i] *
579 sizeof(struct qe_bd));
580 ugeth_info("TX BDs[%d]", i);
581 mem_disp(ugeth->p_tx_bd_ring[i], length);
582 }
583 }
584 for (i = 0; i < ugeth->ug_info->numQueuesRx; i++) {
585 if (ugeth->p_rx_bd_ring[i]) {
586 length =
587 (ugeth->ug_info->bdRingLenRx[i] *
588 sizeof(struct qe_bd));
589 ugeth_info("RX BDs[%d]", i);
590 mem_disp(ugeth->p_rx_bd_ring[i], length);
591 }
592 }
593 }
594
595 static void dump_regs(struct ucc_geth_private *ugeth)
596 {
597 int i;
598
599 ugeth_info("UCC%d Geth registers:", ugeth->ug_info->uf_info.ucc_num + 1);
600 ugeth_info("Base address: 0x%08x", (u32) ugeth->ug_regs);
601
602 ugeth_info("maccfg1 : addr - 0x%08x, val - 0x%08x",
603 (u32) & ugeth->ug_regs->maccfg1,
604 in_be32(&ugeth->ug_regs->maccfg1));
605 ugeth_info("maccfg2 : addr - 0x%08x, val - 0x%08x",
606 (u32) & ugeth->ug_regs->maccfg2,
607 in_be32(&ugeth->ug_regs->maccfg2));
608 ugeth_info("ipgifg : addr - 0x%08x, val - 0x%08x",
609 (u32) & ugeth->ug_regs->ipgifg,
610 in_be32(&ugeth->ug_regs->ipgifg));
611 ugeth_info("hafdup : addr - 0x%08x, val - 0x%08x",
612 (u32) & ugeth->ug_regs->hafdup,
613 in_be32(&ugeth->ug_regs->hafdup));
614 ugeth_info("ifctl : addr - 0x%08x, val - 0x%08x",
615 (u32) & ugeth->ug_regs->ifctl,
616 in_be32(&ugeth->ug_regs->ifctl));
617 ugeth_info("ifstat : addr - 0x%08x, val - 0x%08x",
618 (u32) & ugeth->ug_regs->ifstat,
619 in_be32(&ugeth->ug_regs->ifstat));
620 ugeth_info("macstnaddr1: addr - 0x%08x, val - 0x%08x",
621 (u32) & ugeth->ug_regs->macstnaddr1,
622 in_be32(&ugeth->ug_regs->macstnaddr1));
623 ugeth_info("macstnaddr2: addr - 0x%08x, val - 0x%08x",
624 (u32) & ugeth->ug_regs->macstnaddr2,
625 in_be32(&ugeth->ug_regs->macstnaddr2));
626 ugeth_info("uempr : addr - 0x%08x, val - 0x%08x",
627 (u32) & ugeth->ug_regs->uempr,
628 in_be32(&ugeth->ug_regs->uempr));
629 ugeth_info("utbipar : addr - 0x%08x, val - 0x%08x",
630 (u32) & ugeth->ug_regs->utbipar,
631 in_be32(&ugeth->ug_regs->utbipar));
632 ugeth_info("uescr : addr - 0x%08x, val - 0x%04x",
633 (u32) & ugeth->ug_regs->uescr,
634 in_be16(&ugeth->ug_regs->uescr));
635 ugeth_info("tx64 : addr - 0x%08x, val - 0x%08x",
636 (u32) & ugeth->ug_regs->tx64,
637 in_be32(&ugeth->ug_regs->tx64));
638 ugeth_info("tx127 : addr - 0x%08x, val - 0x%08x",
639 (u32) & ugeth->ug_regs->tx127,
640 in_be32(&ugeth->ug_regs->tx127));
641 ugeth_info("tx255 : addr - 0x%08x, val - 0x%08x",
642 (u32) & ugeth->ug_regs->tx255,
643 in_be32(&ugeth->ug_regs->tx255));
644 ugeth_info("rx64 : addr - 0x%08x, val - 0x%08x",
645 (u32) & ugeth->ug_regs->rx64,
646 in_be32(&ugeth->ug_regs->rx64));
647 ugeth_info("rx127 : addr - 0x%08x, val - 0x%08x",
648 (u32) & ugeth->ug_regs->rx127,
649 in_be32(&ugeth->ug_regs->rx127));
650 ugeth_info("rx255 : addr - 0x%08x, val - 0x%08x",
651 (u32) & ugeth->ug_regs->rx255,
652 in_be32(&ugeth->ug_regs->rx255));
653 ugeth_info("txok : addr - 0x%08x, val - 0x%08x",
654 (u32) & ugeth->ug_regs->txok,
655 in_be32(&ugeth->ug_regs->txok));
656 ugeth_info("txcf : addr - 0x%08x, val - 0x%04x",
657 (u32) & ugeth->ug_regs->txcf,
658 in_be16(&ugeth->ug_regs->txcf));
659 ugeth_info("tmca : addr - 0x%08x, val - 0x%08x",
660 (u32) & ugeth->ug_regs->tmca,
661 in_be32(&ugeth->ug_regs->tmca));
662 ugeth_info("tbca : addr - 0x%08x, val - 0x%08x",
663 (u32) & ugeth->ug_regs->tbca,
664 in_be32(&ugeth->ug_regs->tbca));
665 ugeth_info("rxfok : addr - 0x%08x, val - 0x%08x",
666 (u32) & ugeth->ug_regs->rxfok,
667 in_be32(&ugeth->ug_regs->rxfok));
668 ugeth_info("rxbok : addr - 0x%08x, val - 0x%08x",
669 (u32) & ugeth->ug_regs->rxbok,
670 in_be32(&ugeth->ug_regs->rxbok));
671 ugeth_info("rbyt : addr - 0x%08x, val - 0x%08x",
672 (u32) & ugeth->ug_regs->rbyt,
673 in_be32(&ugeth->ug_regs->rbyt));
674 ugeth_info("rmca : addr - 0x%08x, val - 0x%08x",
675 (u32) & ugeth->ug_regs->rmca,
676 in_be32(&ugeth->ug_regs->rmca));
677 ugeth_info("rbca : addr - 0x%08x, val - 0x%08x",
678 (u32) & ugeth->ug_regs->rbca,
679 in_be32(&ugeth->ug_regs->rbca));
680 ugeth_info("scar : addr - 0x%08x, val - 0x%08x",
681 (u32) & ugeth->ug_regs->scar,
682 in_be32(&ugeth->ug_regs->scar));
683 ugeth_info("scam : addr - 0x%08x, val - 0x%08x",
684 (u32) & ugeth->ug_regs->scam,
685 in_be32(&ugeth->ug_regs->scam));
686
687 if (ugeth->p_thread_data_tx) {
688 int numThreadsTxNumerical;
689 switch (ugeth->ug_info->numThreadsTx) {
690 case UCC_GETH_NUM_OF_THREADS_1:
691 numThreadsTxNumerical = 1;
692 break;
693 case UCC_GETH_NUM_OF_THREADS_2:
694 numThreadsTxNumerical = 2;
695 break;
696 case UCC_GETH_NUM_OF_THREADS_4:
697 numThreadsTxNumerical = 4;
698 break;
699 case UCC_GETH_NUM_OF_THREADS_6:
700 numThreadsTxNumerical = 6;
701 break;
702 case UCC_GETH_NUM_OF_THREADS_8:
703 numThreadsTxNumerical = 8;
704 break;
705 default:
706 numThreadsTxNumerical = 0;
707 break;
708 }
709
710 ugeth_info("Thread data TXs:");
711 ugeth_info("Base address: 0x%08x",
712 (u32) ugeth->p_thread_data_tx);
713 for (i = 0; i < numThreadsTxNumerical; i++) {
714 ugeth_info("Thread data TX[%d]:", i);
715 ugeth_info("Base address: 0x%08x",
716 (u32) & ugeth->p_thread_data_tx[i]);
717 mem_disp((u8 *) & ugeth->p_thread_data_tx[i],
718 sizeof(struct ucc_geth_thread_data_tx));
719 }
720 }
721 if (ugeth->p_thread_data_rx) {
722 int numThreadsRxNumerical;
723 switch (ugeth->ug_info->numThreadsRx) {
724 case UCC_GETH_NUM_OF_THREADS_1:
725 numThreadsRxNumerical = 1;
726 break;
727 case UCC_GETH_NUM_OF_THREADS_2:
728 numThreadsRxNumerical = 2;
729 break;
730 case UCC_GETH_NUM_OF_THREADS_4:
731 numThreadsRxNumerical = 4;
732 break;
733 case UCC_GETH_NUM_OF_THREADS_6:
734 numThreadsRxNumerical = 6;
735 break;
736 case UCC_GETH_NUM_OF_THREADS_8:
737 numThreadsRxNumerical = 8;
738 break;
739 default:
740 numThreadsRxNumerical = 0;
741 break;
742 }
743
744 ugeth_info("Thread data RX:");
745 ugeth_info("Base address: 0x%08x",
746 (u32) ugeth->p_thread_data_rx);
747 for (i = 0; i < numThreadsRxNumerical; i++) {
748 ugeth_info("Thread data RX[%d]:", i);
749 ugeth_info("Base address: 0x%08x",
750 (u32) & ugeth->p_thread_data_rx[i]);
751 mem_disp((u8 *) & ugeth->p_thread_data_rx[i],
752 sizeof(struct ucc_geth_thread_data_rx));
753 }
754 }
755 if (ugeth->p_exf_glbl_param) {
756 ugeth_info("EXF global param:");
757 ugeth_info("Base address: 0x%08x",
758 (u32) ugeth->p_exf_glbl_param);
759 mem_disp((u8 *) ugeth->p_exf_glbl_param,
760 sizeof(*ugeth->p_exf_glbl_param));
761 }
762 if (ugeth->p_tx_glbl_pram) {
763 ugeth_info("TX global param:");
764 ugeth_info("Base address: 0x%08x", (u32) ugeth->p_tx_glbl_pram);
765 ugeth_info("temoder : addr - 0x%08x, val - 0x%04x",
766 (u32) & ugeth->p_tx_glbl_pram->temoder,
767 in_be16(&ugeth->p_tx_glbl_pram->temoder));
768 ugeth_info("sqptr : addr - 0x%08x, val - 0x%08x",
769 (u32) & ugeth->p_tx_glbl_pram->sqptr,
770 in_be32(&ugeth->p_tx_glbl_pram->sqptr));
771 ugeth_info("schedulerbasepointer: addr - 0x%08x, val - 0x%08x",
772 (u32) & ugeth->p_tx_glbl_pram->schedulerbasepointer,
773 in_be32(&ugeth->p_tx_glbl_pram->
774 schedulerbasepointer));
775 ugeth_info("txrmonbaseptr: addr - 0x%08x, val - 0x%08x",
776 (u32) & ugeth->p_tx_glbl_pram->txrmonbaseptr,
777 in_be32(&ugeth->p_tx_glbl_pram->txrmonbaseptr));
778 ugeth_info("tstate : addr - 0x%08x, val - 0x%08x",
779 (u32) & ugeth->p_tx_glbl_pram->tstate,
780 in_be32(&ugeth->p_tx_glbl_pram->tstate));
781 ugeth_info("iphoffset[0] : addr - 0x%08x, val - 0x%02x",
782 (u32) & ugeth->p_tx_glbl_pram->iphoffset[0],
783 ugeth->p_tx_glbl_pram->iphoffset[0]);
784 ugeth_info("iphoffset[1] : addr - 0x%08x, val - 0x%02x",
785 (u32) & ugeth->p_tx_glbl_pram->iphoffset[1],
786 ugeth->p_tx_glbl_pram->iphoffset[1]);
787 ugeth_info("iphoffset[2] : addr - 0x%08x, val - 0x%02x",
788 (u32) & ugeth->p_tx_glbl_pram->iphoffset[2],
789 ugeth->p_tx_glbl_pram->iphoffset[2]);
790 ugeth_info("iphoffset[3] : addr - 0x%08x, val - 0x%02x",
791 (u32) & ugeth->p_tx_glbl_pram->iphoffset[3],
792 ugeth->p_tx_glbl_pram->iphoffset[3]);
793 ugeth_info("iphoffset[4] : addr - 0x%08x, val - 0x%02x",
794 (u32) & ugeth->p_tx_glbl_pram->iphoffset[4],
795 ugeth->p_tx_glbl_pram->iphoffset[4]);
796 ugeth_info("iphoffset[5] : addr - 0x%08x, val - 0x%02x",
797 (u32) & ugeth->p_tx_glbl_pram->iphoffset[5],
798 ugeth->p_tx_glbl_pram->iphoffset[5]);
799 ugeth_info("iphoffset[6] : addr - 0x%08x, val - 0x%02x",
800 (u32) & ugeth->p_tx_glbl_pram->iphoffset[6],
801 ugeth->p_tx_glbl_pram->iphoffset[6]);
802 ugeth_info("iphoffset[7] : addr - 0x%08x, val - 0x%02x",
803 (u32) & ugeth->p_tx_glbl_pram->iphoffset[7],
804 ugeth->p_tx_glbl_pram->iphoffset[7]);
805 ugeth_info("vtagtable[0] : addr - 0x%08x, val - 0x%08x",
806 (u32) & ugeth->p_tx_glbl_pram->vtagtable[0],
807 in_be32(&ugeth->p_tx_glbl_pram->vtagtable[0]));
808 ugeth_info("vtagtable[1] : addr - 0x%08x, val - 0x%08x",
809 (u32) & ugeth->p_tx_glbl_pram->vtagtable[1],
810 in_be32(&ugeth->p_tx_glbl_pram->vtagtable[1]));
811 ugeth_info("vtagtable[2] : addr - 0x%08x, val - 0x%08x",
812 (u32) & ugeth->p_tx_glbl_pram->vtagtable[2],
813 in_be32(&ugeth->p_tx_glbl_pram->vtagtable[2]));
814 ugeth_info("vtagtable[3] : addr - 0x%08x, val - 0x%08x",
815 (u32) & ugeth->p_tx_glbl_pram->vtagtable[3],
816 in_be32(&ugeth->p_tx_glbl_pram->vtagtable[3]));
817 ugeth_info("vtagtable[4] : addr - 0x%08x, val - 0x%08x",
818 (u32) & ugeth->p_tx_glbl_pram->vtagtable[4],
819 in_be32(&ugeth->p_tx_glbl_pram->vtagtable[4]));
820 ugeth_info("vtagtable[5] : addr - 0x%08x, val - 0x%08x",
821 (u32) & ugeth->p_tx_glbl_pram->vtagtable[5],
822 in_be32(&ugeth->p_tx_glbl_pram->vtagtable[5]));
823 ugeth_info("vtagtable[6] : addr - 0x%08x, val - 0x%08x",
824 (u32) & ugeth->p_tx_glbl_pram->vtagtable[6],
825 in_be32(&ugeth->p_tx_glbl_pram->vtagtable[6]));
826 ugeth_info("vtagtable[7] : addr - 0x%08x, val - 0x%08x",
827 (u32) & ugeth->p_tx_glbl_pram->vtagtable[7],
828 in_be32(&ugeth->p_tx_glbl_pram->vtagtable[7]));
829 ugeth_info("tqptr : addr - 0x%08x, val - 0x%08x",
830 (u32) & ugeth->p_tx_glbl_pram->tqptr,
831 in_be32(&ugeth->p_tx_glbl_pram->tqptr));
832 }
833 if (ugeth->p_rx_glbl_pram) {
834 ugeth_info("RX global param:");
835 ugeth_info("Base address: 0x%08x", (u32) ugeth->p_rx_glbl_pram);
836 ugeth_info("remoder : addr - 0x%08x, val - 0x%08x",
837 (u32) & ugeth->p_rx_glbl_pram->remoder,
838 in_be32(&ugeth->p_rx_glbl_pram->remoder));
839 ugeth_info("rqptr : addr - 0x%08x, val - 0x%08x",
840 (u32) & ugeth->p_rx_glbl_pram->rqptr,
841 in_be32(&ugeth->p_rx_glbl_pram->rqptr));
842 ugeth_info("typeorlen : addr - 0x%08x, val - 0x%04x",
843 (u32) & ugeth->p_rx_glbl_pram->typeorlen,
844 in_be16(&ugeth->p_rx_glbl_pram->typeorlen));
845 ugeth_info("rxgstpack : addr - 0x%08x, val - 0x%02x",
846 (u32) & ugeth->p_rx_glbl_pram->rxgstpack,
847 ugeth->p_rx_glbl_pram->rxgstpack);
848 ugeth_info("rxrmonbaseptr : addr - 0x%08x, val - 0x%08x",
849 (u32) & ugeth->p_rx_glbl_pram->rxrmonbaseptr,
850 in_be32(&ugeth->p_rx_glbl_pram->rxrmonbaseptr));
851 ugeth_info("intcoalescingptr: addr - 0x%08x, val - 0x%08x",
852 (u32) & ugeth->p_rx_glbl_pram->intcoalescingptr,
853 in_be32(&ugeth->p_rx_glbl_pram->intcoalescingptr));
854 ugeth_info("rstate : addr - 0x%08x, val - 0x%02x",
855 (u32) & ugeth->p_rx_glbl_pram->rstate,
856 ugeth->p_rx_glbl_pram->rstate);
857 ugeth_info("mrblr : addr - 0x%08x, val - 0x%04x",
858 (u32) & ugeth->p_rx_glbl_pram->mrblr,
859 in_be16(&ugeth->p_rx_glbl_pram->mrblr));
860 ugeth_info("rbdqptr : addr - 0x%08x, val - 0x%08x",
861 (u32) & ugeth->p_rx_glbl_pram->rbdqptr,
862 in_be32(&ugeth->p_rx_glbl_pram->rbdqptr));
863 ugeth_info("mflr : addr - 0x%08x, val - 0x%04x",
864 (u32) & ugeth->p_rx_glbl_pram->mflr,
865 in_be16(&ugeth->p_rx_glbl_pram->mflr));
866 ugeth_info("minflr : addr - 0x%08x, val - 0x%04x",
867 (u32) & ugeth->p_rx_glbl_pram->minflr,
868 in_be16(&ugeth->p_rx_glbl_pram->minflr));
869 ugeth_info("maxd1 : addr - 0x%08x, val - 0x%04x",
870 (u32) & ugeth->p_rx_glbl_pram->maxd1,
871 in_be16(&ugeth->p_rx_glbl_pram->maxd1));
872 ugeth_info("maxd2 : addr - 0x%08x, val - 0x%04x",
873 (u32) & ugeth->p_rx_glbl_pram->maxd2,
874 in_be16(&ugeth->p_rx_glbl_pram->maxd2));
875 ugeth_info("ecamptr : addr - 0x%08x, val - 0x%08x",
876 (u32) & ugeth->p_rx_glbl_pram->ecamptr,
877 in_be32(&ugeth->p_rx_glbl_pram->ecamptr));
878 ugeth_info("l2qt : addr - 0x%08x, val - 0x%08x",
879 (u32) & ugeth->p_rx_glbl_pram->l2qt,
880 in_be32(&ugeth->p_rx_glbl_pram->l2qt));
881 ugeth_info("l3qt[0] : addr - 0x%08x, val - 0x%08x",
882 (u32) & ugeth->p_rx_glbl_pram->l3qt[0],
883 in_be32(&ugeth->p_rx_glbl_pram->l3qt[0]));
884 ugeth_info("l3qt[1] : addr - 0x%08x, val - 0x%08x",
885 (u32) & ugeth->p_rx_glbl_pram->l3qt[1],
886 in_be32(&ugeth->p_rx_glbl_pram->l3qt[1]));
887 ugeth_info("l3qt[2] : addr - 0x%08x, val - 0x%08x",
888 (u32) & ugeth->p_rx_glbl_pram->l3qt[2],
889 in_be32(&ugeth->p_rx_glbl_pram->l3qt[2]));
890 ugeth_info("l3qt[3] : addr - 0x%08x, val - 0x%08x",
891 (u32) & ugeth->p_rx_glbl_pram->l3qt[3],
892 in_be32(&ugeth->p_rx_glbl_pram->l3qt[3]));
893 ugeth_info("l3qt[4] : addr - 0x%08x, val - 0x%08x",
894 (u32) & ugeth->p_rx_glbl_pram->l3qt[4],
895 in_be32(&ugeth->p_rx_glbl_pram->l3qt[4]));
896 ugeth_info("l3qt[5] : addr - 0x%08x, val - 0x%08x",
897 (u32) & ugeth->p_rx_glbl_pram->l3qt[5],
898 in_be32(&ugeth->p_rx_glbl_pram->l3qt[5]));
899 ugeth_info("l3qt[6] : addr - 0x%08x, val - 0x%08x",
900 (u32) & ugeth->p_rx_glbl_pram->l3qt[6],
901 in_be32(&ugeth->p_rx_glbl_pram->l3qt[6]));
902 ugeth_info("l3qt[7] : addr - 0x%08x, val - 0x%08x",
903 (u32) & ugeth->p_rx_glbl_pram->l3qt[7],
904 in_be32(&ugeth->p_rx_glbl_pram->l3qt[7]));
905 ugeth_info("vlantype : addr - 0x%08x, val - 0x%04x",
906 (u32) & ugeth->p_rx_glbl_pram->vlantype,
907 in_be16(&ugeth->p_rx_glbl_pram->vlantype));
908 ugeth_info("vlantci : addr - 0x%08x, val - 0x%04x",
909 (u32) & ugeth->p_rx_glbl_pram->vlantci,
910 in_be16(&ugeth->p_rx_glbl_pram->vlantci));
911 for (i = 0; i < 64; i++)
912 ugeth_info
913 ("addressfiltering[%d]: addr - 0x%08x, val - 0x%02x",
914 i,
915 (u32) & ugeth->p_rx_glbl_pram->addressfiltering[i],
916 ugeth->p_rx_glbl_pram->addressfiltering[i]);
917 ugeth_info("exfGlobalParam : addr - 0x%08x, val - 0x%08x",
918 (u32) & ugeth->p_rx_glbl_pram->exfGlobalParam,
919 in_be32(&ugeth->p_rx_glbl_pram->exfGlobalParam));
920 }
921 if (ugeth->p_send_q_mem_reg) {
922 ugeth_info("Send Q memory registers:");
923 ugeth_info("Base address: 0x%08x",
924 (u32) ugeth->p_send_q_mem_reg);
925 for (i = 0; i < ugeth->ug_info->numQueuesTx; i++) {
926 ugeth_info("SQQD[%d]:", i);
927 ugeth_info("Base address: 0x%08x",
928 (u32) & ugeth->p_send_q_mem_reg->sqqd[i]);
929 mem_disp((u8 *) & ugeth->p_send_q_mem_reg->sqqd[i],
930 sizeof(struct ucc_geth_send_queue_qd));
931 }
932 }
933 if (ugeth->p_scheduler) {
934 ugeth_info("Scheduler:");
935 ugeth_info("Base address: 0x%08x", (u32) ugeth->p_scheduler);
936 mem_disp((u8 *) ugeth->p_scheduler,
937 sizeof(*ugeth->p_scheduler));
938 }
939 if (ugeth->p_tx_fw_statistics_pram) {
940 ugeth_info("TX FW statistics pram:");
941 ugeth_info("Base address: 0x%08x",
942 (u32) ugeth->p_tx_fw_statistics_pram);
943 mem_disp((u8 *) ugeth->p_tx_fw_statistics_pram,
944 sizeof(*ugeth->p_tx_fw_statistics_pram));
945 }
946 if (ugeth->p_rx_fw_statistics_pram) {
947 ugeth_info("RX FW statistics pram:");
948 ugeth_info("Base address: 0x%08x",
949 (u32) ugeth->p_rx_fw_statistics_pram);
950 mem_disp((u8 *) ugeth->p_rx_fw_statistics_pram,
951 sizeof(*ugeth->p_rx_fw_statistics_pram));
952 }
953 if (ugeth->p_rx_irq_coalescing_tbl) {
954 ugeth_info("RX IRQ coalescing tables:");
955 ugeth_info("Base address: 0x%08x",
956 (u32) ugeth->p_rx_irq_coalescing_tbl);
957 for (i = 0; i < ugeth->ug_info->numQueuesRx; i++) {
958 ugeth_info("RX IRQ coalescing table entry[%d]:", i);
959 ugeth_info("Base address: 0x%08x",
960 (u32) & ugeth->p_rx_irq_coalescing_tbl->
961 coalescingentry[i]);
962 ugeth_info
963 ("interruptcoalescingmaxvalue: addr - 0x%08x, val - 0x%08x",
964 (u32) & ugeth->p_rx_irq_coalescing_tbl->
965 coalescingentry[i].interruptcoalescingmaxvalue,
966 in_be32(&ugeth->p_rx_irq_coalescing_tbl->
967 coalescingentry[i].
968 interruptcoalescingmaxvalue));
969 ugeth_info
970 ("interruptcoalescingcounter : addr - 0x%08x, val - 0x%08x",
971 (u32) & ugeth->p_rx_irq_coalescing_tbl->
972 coalescingentry[i].interruptcoalescingcounter,
973 in_be32(&ugeth->p_rx_irq_coalescing_tbl->
974 coalescingentry[i].
975 interruptcoalescingcounter));
976 }
977 }
978 if (ugeth->p_rx_bd_qs_tbl) {
979 ugeth_info("RX BD QS tables:");
980 ugeth_info("Base address: 0x%08x", (u32) ugeth->p_rx_bd_qs_tbl);
981 for (i = 0; i < ugeth->ug_info->numQueuesRx; i++) {
982 ugeth_info("RX BD QS table[%d]:", i);
983 ugeth_info("Base address: 0x%08x",
984 (u32) & ugeth->p_rx_bd_qs_tbl[i]);
985 ugeth_info
986 ("bdbaseptr : addr - 0x%08x, val - 0x%08x",
987 (u32) & ugeth->p_rx_bd_qs_tbl[i].bdbaseptr,
988 in_be32(&ugeth->p_rx_bd_qs_tbl[i].bdbaseptr));
989 ugeth_info
990 ("bdptr : addr - 0x%08x, val - 0x%08x",
991 (u32) & ugeth->p_rx_bd_qs_tbl[i].bdptr,
992 in_be32(&ugeth->p_rx_bd_qs_tbl[i].bdptr));
993 ugeth_info
994 ("externalbdbaseptr: addr - 0x%08x, val - 0x%08x",
995 (u32) & ugeth->p_rx_bd_qs_tbl[i].externalbdbaseptr,
996 in_be32(&ugeth->p_rx_bd_qs_tbl[i].
997 externalbdbaseptr));
998 ugeth_info
999 ("externalbdptr : addr - 0x%08x, val - 0x%08x",
1000 (u32) & ugeth->p_rx_bd_qs_tbl[i].externalbdptr,
1001 in_be32(&ugeth->p_rx_bd_qs_tbl[i].externalbdptr));
1002 ugeth_info("ucode RX Prefetched BDs:");
1003 ugeth_info("Base address: 0x%08x",
1004 (u32)
1005 qe_muram_addr(in_be32
1006 (&ugeth->p_rx_bd_qs_tbl[i].
1007 bdbaseptr)));
1008 mem_disp((u8 *)
1009 qe_muram_addr(in_be32
1010 (&ugeth->p_rx_bd_qs_tbl[i].
1011 bdbaseptr)),
1012 sizeof(struct ucc_geth_rx_prefetched_bds));
1013 }
1014 }
1015 if (ugeth->p_init_enet_param_shadow) {
1016 int size;
1017 ugeth_info("Init enet param shadow:");
1018 ugeth_info("Base address: 0x%08x",
1019 (u32) ugeth->p_init_enet_param_shadow);
1020 mem_disp((u8 *) ugeth->p_init_enet_param_shadow,
1021 sizeof(*ugeth->p_init_enet_param_shadow));
1022
1023 size = sizeof(struct ucc_geth_thread_rx_pram);
1024 if (ugeth->ug_info->rxExtendedFiltering) {
1025 size +=
1026 THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING;
1027 if (ugeth->ug_info->largestexternallookupkeysize ==
1028 QE_FLTR_TABLE_LOOKUP_KEY_SIZE_8_BYTES)
1029 size +=
1030 THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING_8;
1031 if (ugeth->ug_info->largestexternallookupkeysize ==
1032 QE_FLTR_TABLE_LOOKUP_KEY_SIZE_16_BYTES)
1033 size +=
1034 THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING_16;
1035 }
1036
1037 dump_init_enet_entries(ugeth,
1038 &(ugeth->p_init_enet_param_shadow->
1039 txthread[0]),
1040 ENET_INIT_PARAM_MAX_ENTRIES_TX,
1041 sizeof(struct ucc_geth_thread_tx_pram),
1042 ugeth->ug_info->riscTx, 0);
1043 dump_init_enet_entries(ugeth,
1044 &(ugeth->p_init_enet_param_shadow->
1045 rxthread[0]),
1046 ENET_INIT_PARAM_MAX_ENTRIES_RX, size,
1047 ugeth->ug_info->riscRx, 1);
1048 }
1049 }
1050 #endif /* DEBUG */
1051
1052 static void init_default_reg_vals(u32 __iomem *upsmr_register,
1053 u32 __iomem *maccfg1_register,
1054 u32 __iomem *maccfg2_register)
1055 {
1056 out_be32(upsmr_register, UCC_GETH_UPSMR_INIT);
1057 out_be32(maccfg1_register, UCC_GETH_MACCFG1_INIT);
1058 out_be32(maccfg2_register, UCC_GETH_MACCFG2_INIT);
1059 }
1060
1061 static int init_half_duplex_params(int alt_beb,
1062 int back_pressure_no_backoff,
1063 int no_backoff,
1064 int excess_defer,
1065 u8 alt_beb_truncation,
1066 u8 max_retransmissions,
1067 u8 collision_window,
1068 u32 __iomem *hafdup_register)
1069 {
1070 u32 value = 0;
1071
1072 if ((alt_beb_truncation > HALFDUP_ALT_BEB_TRUNCATION_MAX) ||
1073 (max_retransmissions > HALFDUP_MAX_RETRANSMISSION_MAX) ||
1074 (collision_window > HALFDUP_COLLISION_WINDOW_MAX))
1075 return -EINVAL;
1076
1077 value = (u32) (alt_beb_truncation << HALFDUP_ALT_BEB_TRUNCATION_SHIFT);
1078
1079 if (alt_beb)
1080 value |= HALFDUP_ALT_BEB;
1081 if (back_pressure_no_backoff)
1082 value |= HALFDUP_BACK_PRESSURE_NO_BACKOFF;
1083 if (no_backoff)
1084 value |= HALFDUP_NO_BACKOFF;
1085 if (excess_defer)
1086 value |= HALFDUP_EXCESSIVE_DEFER;
1087
1088 value |= (max_retransmissions << HALFDUP_MAX_RETRANSMISSION_SHIFT);
1089
1090 value |= collision_window;
1091
1092 out_be32(hafdup_register, value);
1093 return 0;
1094 }
1095
1096 static int init_inter_frame_gap_params(u8 non_btb_cs_ipg,
1097 u8 non_btb_ipg,
1098 u8 min_ifg,
1099 u8 btb_ipg,
1100 u32 __iomem *ipgifg_register)
1101 {
1102 u32 value = 0;
1103
1104 /* Non-Back-to-back IPG part 1 should be <= Non-Back-to-back
1105 IPG part 2 */
1106 if (non_btb_cs_ipg > non_btb_ipg)
1107 return -EINVAL;
1108
1109 if ((non_btb_cs_ipg > IPGIFG_NON_BACK_TO_BACK_IFG_PART1_MAX) ||
1110 (non_btb_ipg > IPGIFG_NON_BACK_TO_BACK_IFG_PART2_MAX) ||
1111 /*(min_ifg > IPGIFG_MINIMUM_IFG_ENFORCEMENT_MAX) || */
1112 (btb_ipg > IPGIFG_BACK_TO_BACK_IFG_MAX))
1113 return -EINVAL;
1114
1115 value |=
1116 ((non_btb_cs_ipg << IPGIFG_NON_BACK_TO_BACK_IFG_PART1_SHIFT) &
1117 IPGIFG_NBTB_CS_IPG_MASK);
1118 value |=
1119 ((non_btb_ipg << IPGIFG_NON_BACK_TO_BACK_IFG_PART2_SHIFT) &
1120 IPGIFG_NBTB_IPG_MASK);
1121 value |=
1122 ((min_ifg << IPGIFG_MINIMUM_IFG_ENFORCEMENT_SHIFT) &
1123 IPGIFG_MIN_IFG_MASK);
1124 value |= (btb_ipg & IPGIFG_BTB_IPG_MASK);
1125
1126 out_be32(ipgifg_register, value);
1127 return 0;
1128 }
1129
1130 int init_flow_control_params(u32 automatic_flow_control_mode,
1131 int rx_flow_control_enable,
1132 int tx_flow_control_enable,
1133 u16 pause_period,
1134 u16 extension_field,
1135 u32 __iomem *upsmr_register,
1136 u32 __iomem *uempr_register,
1137 u32 __iomem *maccfg1_register)
1138 {
1139 u32 value = 0;
1140
1141 /* Set UEMPR register */
1142 value = (u32) pause_period << UEMPR_PAUSE_TIME_VALUE_SHIFT;
1143 value |= (u32) extension_field << UEMPR_EXTENDED_PAUSE_TIME_VALUE_SHIFT;
1144 out_be32(uempr_register, value);
1145
1146 /* Set UPSMR register */
1147 setbits32(upsmr_register, automatic_flow_control_mode);
1148
1149 value = in_be32(maccfg1_register);
1150 if (rx_flow_control_enable)
1151 value |= MACCFG1_FLOW_RX;
1152 if (tx_flow_control_enable)
1153 value |= MACCFG1_FLOW_TX;
1154 out_be32(maccfg1_register, value);
1155
1156 return 0;
1157 }
1158
1159 static int init_hw_statistics_gathering_mode(int enable_hardware_statistics,
1160 int auto_zero_hardware_statistics,
1161 u32 __iomem *upsmr_register,
1162 u16 __iomem *uescr_register)
1163 {
1164 u16 uescr_value = 0;
1165
1166 /* Enable hardware statistics gathering if requested */
1167 if (enable_hardware_statistics)
1168 setbits32(upsmr_register, UCC_GETH_UPSMR_HSE);
1169
1170 /* Clear hardware statistics counters */
1171 uescr_value = in_be16(uescr_register);
1172 uescr_value |= UESCR_CLRCNT;
1173 /* Automatically zero hardware statistics counters on read,
1174 if requested */
1175 if (auto_zero_hardware_statistics)
1176 uescr_value |= UESCR_AUTOZ;
1177 out_be16(uescr_register, uescr_value);
1178
1179 return 0;
1180 }
1181
1182 static int init_firmware_statistics_gathering_mode(int
1183 enable_tx_firmware_statistics,
1184 int enable_rx_firmware_statistics,
1185 u32 __iomem *tx_rmon_base_ptr,
1186 u32 tx_firmware_statistics_structure_address,
1187 u32 __iomem *rx_rmon_base_ptr,
1188 u32 rx_firmware_statistics_structure_address,
1189 u16 __iomem *temoder_register,
1190 u32 __iomem *remoder_register)
1191 {
1192 /* Note: this function does not check if */
1193 /* the parameters it receives are NULL */
1194
1195 if (enable_tx_firmware_statistics) {
1196 out_be32(tx_rmon_base_ptr,
1197 tx_firmware_statistics_structure_address);
1198 setbits16(temoder_register, TEMODER_TX_RMON_STATISTICS_ENABLE);
1199 }
1200
1201 if (enable_rx_firmware_statistics) {
1202 out_be32(rx_rmon_base_ptr,
1203 rx_firmware_statistics_structure_address);
1204 setbits32(remoder_register, REMODER_RX_RMON_STATISTICS_ENABLE);
1205 }
1206
1207 return 0;
1208 }
1209
1210 static int init_mac_station_addr_regs(u8 address_byte_0,
1211 u8 address_byte_1,
1212 u8 address_byte_2,
1213 u8 address_byte_3,
1214 u8 address_byte_4,
1215 u8 address_byte_5,
1216 u32 __iomem *macstnaddr1_register,
1217 u32 __iomem *macstnaddr2_register)
1218 {
1219 u32 value = 0;
1220
1221 /* Example: for a station address of 0x12345678ABCD, */
1222 /* 0x12 is byte 0, 0x34 is byte 1 and so on and 0xCD is byte 5 */
1223
1224 /* MACSTNADDR1 Register: */
1225
1226 /* 0 7 8 15 */
1227 /* station address byte 5 station address byte 4 */
1228 /* 16 23 24 31 */
1229 /* station address byte 3 station address byte 2 */
1230 value |= (u32) ((address_byte_2 << 0) & 0x000000FF);
1231 value |= (u32) ((address_byte_3 << 8) & 0x0000FF00);
1232 value |= (u32) ((address_byte_4 << 16) & 0x00FF0000);
1233 value |= (u32) ((address_byte_5 << 24) & 0xFF000000);
1234
1235 out_be32(macstnaddr1_register, value);
1236
1237 /* MACSTNADDR2 Register: */
1238
1239 /* 0 7 8 15 */
1240 /* station address byte 1 station address byte 0 */
1241 /* 16 23 24 31 */
1242 /* reserved reserved */
1243 value = 0;
1244 value |= (u32) ((address_byte_0 << 16) & 0x00FF0000);
1245 value |= (u32) ((address_byte_1 << 24) & 0xFF000000);
1246
1247 out_be32(macstnaddr2_register, value);
1248
1249 return 0;
1250 }
1251
1252 static int init_check_frame_length_mode(int length_check,
1253 u32 __iomem *maccfg2_register)
1254 {
1255 u32 value = 0;
1256
1257 value = in_be32(maccfg2_register);
1258
1259 if (length_check)
1260 value |= MACCFG2_LC;
1261 else
1262 value &= ~MACCFG2_LC;
1263
1264 out_be32(maccfg2_register, value);
1265 return 0;
1266 }
1267
1268 static int init_preamble_length(u8 preamble_length,
1269 u32 __iomem *maccfg2_register)
1270 {
1271 if ((preamble_length < 3) || (preamble_length > 7))
1272 return -EINVAL;
1273
1274 clrsetbits_be32(maccfg2_register, MACCFG2_PREL_MASK,
1275 preamble_length << MACCFG2_PREL_SHIFT);
1276
1277 return 0;
1278 }
1279
1280 static int init_rx_parameters(int reject_broadcast,
1281 int receive_short_frames,
1282 int promiscuous, u32 __iomem *upsmr_register)
1283 {
1284 u32 value = 0;
1285
1286 value = in_be32(upsmr_register);
1287
1288 if (reject_broadcast)
1289 value |= UCC_GETH_UPSMR_BRO;
1290 else
1291 value &= ~UCC_GETH_UPSMR_BRO;
1292
1293 if (receive_short_frames)
1294 value |= UCC_GETH_UPSMR_RSH;
1295 else
1296 value &= ~UCC_GETH_UPSMR_RSH;
1297
1298 if (promiscuous)
1299 value |= UCC_GETH_UPSMR_PRO;
1300 else
1301 value &= ~UCC_GETH_UPSMR_PRO;
1302
1303 out_be32(upsmr_register, value);
1304
1305 return 0;
1306 }
1307
1308 static int init_max_rx_buff_len(u16 max_rx_buf_len,
1309 u16 __iomem *mrblr_register)
1310 {
1311 /* max_rx_buf_len value must be a multiple of 128 */
1312 if ((max_rx_buf_len == 0) ||
1313 (max_rx_buf_len % UCC_GETH_MRBLR_ALIGNMENT))
1314 return -EINVAL;
1315
1316 out_be16(mrblr_register, max_rx_buf_len);
1317 return 0;
1318 }
1319
1320 static int init_min_frame_len(u16 min_frame_length,
1321 u16 __iomem *minflr_register,
1322 u16 __iomem *mrblr_register)
1323 {
1324 u16 mrblr_value = 0;
1325
1326 mrblr_value = in_be16(mrblr_register);
1327 if (min_frame_length >= (mrblr_value - 4))
1328 return -EINVAL;
1329
1330 out_be16(minflr_register, min_frame_length);
1331 return 0;
1332 }
1333
1334 static int adjust_enet_interface(struct ucc_geth_private *ugeth)
1335 {
1336 struct ucc_geth_info *ug_info;
1337 struct ucc_geth __iomem *ug_regs;
1338 struct ucc_fast __iomem *uf_regs;
1339 int ret_val;
1340 u32 upsmr, maccfg2;
1341 u16 value;
1342
1343 ugeth_vdbg("%s: IN", __func__);
1344
1345 ug_info = ugeth->ug_info;
1346 ug_regs = ugeth->ug_regs;
1347 uf_regs = ugeth->uccf->uf_regs;
1348
1349 /* Set MACCFG2 */
1350 maccfg2 = in_be32(&ug_regs->maccfg2);
1351 maccfg2 &= ~MACCFG2_INTERFACE_MODE_MASK;
1352 if ((ugeth->max_speed == SPEED_10) ||
1353 (ugeth->max_speed == SPEED_100))
1354 maccfg2 |= MACCFG2_INTERFACE_MODE_NIBBLE;
1355 else if (ugeth->max_speed == SPEED_1000)
1356 maccfg2 |= MACCFG2_INTERFACE_MODE_BYTE;
1357 maccfg2 |= ug_info->padAndCrc;
1358 out_be32(&ug_regs->maccfg2, maccfg2);
1359
1360 /* Set UPSMR */
1361 upsmr = in_be32(&uf_regs->upsmr);
1362 upsmr &= ~(UCC_GETH_UPSMR_RPM | UCC_GETH_UPSMR_R10M |
1363 UCC_GETH_UPSMR_TBIM | UCC_GETH_UPSMR_RMM);
1364 if ((ugeth->phy_interface == PHY_INTERFACE_MODE_RMII) ||
1365 (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII) ||
1366 (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII_ID) ||
1367 (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII_RXID) ||
1368 (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII_TXID) ||
1369 (ugeth->phy_interface == PHY_INTERFACE_MODE_RTBI)) {
1370 if (ugeth->phy_interface != PHY_INTERFACE_MODE_RMII)
1371 upsmr |= UCC_GETH_UPSMR_RPM;
1372 switch (ugeth->max_speed) {
1373 case SPEED_10:
1374 upsmr |= UCC_GETH_UPSMR_R10M;
1375 /* FALLTHROUGH */
1376 case SPEED_100:
1377 if (ugeth->phy_interface != PHY_INTERFACE_MODE_RTBI)
1378 upsmr |= UCC_GETH_UPSMR_RMM;
1379 }
1380 }
1381 if ((ugeth->phy_interface == PHY_INTERFACE_MODE_TBI) ||
1382 (ugeth->phy_interface == PHY_INTERFACE_MODE_RTBI)) {
1383 upsmr |= UCC_GETH_UPSMR_TBIM;
1384 }
1385 if ((ugeth->phy_interface == PHY_INTERFACE_MODE_SGMII))
1386 upsmr |= UCC_GETH_UPSMR_SGMM;
1387
1388 out_be32(&uf_regs->upsmr, upsmr);
1389
1390 /* Disable autonegotiation in tbi mode, because by default it
1391 comes up in autonegotiation mode. */
1392 /* Note that this depends on proper setting in utbipar register. */
1393 if ((ugeth->phy_interface == PHY_INTERFACE_MODE_TBI) ||
1394 (ugeth->phy_interface == PHY_INTERFACE_MODE_RTBI)) {
1395 struct ucc_geth_info *ug_info = ugeth->ug_info;
1396 struct phy_device *tbiphy;
1397
1398 if (!ug_info->tbi_node)
1399 ugeth_warn("TBI mode requires that the device "
1400 "tree specify a tbi-handle\n");
1401
1402 tbiphy = of_phy_find_device(ug_info->tbi_node);
1403 if (!tbiphy)
1404 ugeth_warn("Could not get TBI device\n");
1405
1406 value = phy_read(tbiphy, ENET_TBI_MII_CR);
1407 value &= ~0x1000; /* Turn off autonegotiation */
1408 phy_write(tbiphy, ENET_TBI_MII_CR, value);
1409 }
1410
1411 init_check_frame_length_mode(ug_info->lengthCheckRx, &ug_regs->maccfg2);
1412
1413 ret_val = init_preamble_length(ug_info->prel, &ug_regs->maccfg2);
1414 if (ret_val != 0) {
1415 if (netif_msg_probe(ugeth))
1416 ugeth_err("%s: Preamble length must be between 3 and 7 inclusive.",
1417 __func__);
1418 return ret_val;
1419 }
1420
1421 return 0;
1422 }
1423
1424 static int ugeth_graceful_stop_tx(struct ucc_geth_private *ugeth)
1425 {
1426 struct ucc_fast_private *uccf;
1427 u32 cecr_subblock;
1428 u32 temp;
1429 int i = 10;
1430
1431 uccf = ugeth->uccf;
1432
1433 /* Mask GRACEFUL STOP TX interrupt bit and clear it */
1434 clrbits32(uccf->p_uccm, UCC_GETH_UCCE_GRA);
1435 out_be32(uccf->p_ucce, UCC_GETH_UCCE_GRA); /* clear by writing 1 */
1436
1437 /* Issue host command */
1438 cecr_subblock =
1439 ucc_fast_get_qe_cr_subblock(ugeth->ug_info->uf_info.ucc_num);
1440 qe_issue_cmd(QE_GRACEFUL_STOP_TX, cecr_subblock,
1441 QE_CR_PROTOCOL_ETHERNET, 0);
1442
1443 /* Wait for command to complete */
1444 do {
1445 msleep(10);
1446 temp = in_be32(uccf->p_ucce);
1447 } while (!(temp & UCC_GETH_UCCE_GRA) && --i);
1448
1449 uccf->stopped_tx = 1;
1450
1451 return 0;
1452 }
1453
1454 static int ugeth_graceful_stop_rx(struct ucc_geth_private *ugeth)
1455 {
1456 struct ucc_fast_private *uccf;
1457 u32 cecr_subblock;
1458 u8 temp;
1459 int i = 10;
1460
1461 uccf = ugeth->uccf;
1462
1463 /* Clear acknowledge bit */
1464 temp = in_8(&ugeth->p_rx_glbl_pram->rxgstpack);
1465 temp &= ~GRACEFUL_STOP_ACKNOWLEDGE_RX;
1466 out_8(&ugeth->p_rx_glbl_pram->rxgstpack, temp);
1467
1468 /* Keep issuing command and checking acknowledge bit until
1469 it is asserted, according to spec */
1470 do {
1471 /* Issue host command */
1472 cecr_subblock =
1473 ucc_fast_get_qe_cr_subblock(ugeth->ug_info->uf_info.
1474 ucc_num);
1475 qe_issue_cmd(QE_GRACEFUL_STOP_RX, cecr_subblock,
1476 QE_CR_PROTOCOL_ETHERNET, 0);
1477 msleep(10);
1478 temp = in_8(&ugeth->p_rx_glbl_pram->rxgstpack);
1479 } while (!(temp & GRACEFUL_STOP_ACKNOWLEDGE_RX) && --i);
1480
1481 uccf->stopped_rx = 1;
1482
1483 return 0;
1484 }
1485
1486 static int ugeth_restart_tx(struct ucc_geth_private *ugeth)
1487 {
1488 struct ucc_fast_private *uccf;
1489 u32 cecr_subblock;
1490
1491 uccf = ugeth->uccf;
1492
1493 cecr_subblock =
1494 ucc_fast_get_qe_cr_subblock(ugeth->ug_info->uf_info.ucc_num);
1495 qe_issue_cmd(QE_RESTART_TX, cecr_subblock, QE_CR_PROTOCOL_ETHERNET, 0);
1496 uccf->stopped_tx = 0;
1497
1498 return 0;
1499 }
1500
1501 static int ugeth_restart_rx(struct ucc_geth_private *ugeth)
1502 {
1503 struct ucc_fast_private *uccf;
1504 u32 cecr_subblock;
1505
1506 uccf = ugeth->uccf;
1507
1508 cecr_subblock =
1509 ucc_fast_get_qe_cr_subblock(ugeth->ug_info->uf_info.ucc_num);
1510 qe_issue_cmd(QE_RESTART_RX, cecr_subblock, QE_CR_PROTOCOL_ETHERNET,
1511 0);
1512 uccf->stopped_rx = 0;
1513
1514 return 0;
1515 }
1516
1517 static int ugeth_enable(struct ucc_geth_private *ugeth, enum comm_dir mode)
1518 {
1519 struct ucc_fast_private *uccf;
1520 int enabled_tx, enabled_rx;
1521
1522 uccf = ugeth->uccf;
1523
1524 /* check if the UCC number is in range. */
1525 if (ugeth->ug_info->uf_info.ucc_num >= UCC_MAX_NUM) {
1526 if (netif_msg_probe(ugeth))
1527 ugeth_err("%s: ucc_num out of range.", __func__);
1528 return -EINVAL;
1529 }
1530
1531 enabled_tx = uccf->enabled_tx;
1532 enabled_rx = uccf->enabled_rx;
1533
1534 /* Get Tx and Rx going again, in case this channel was actively
1535 disabled. */
1536 if ((mode & COMM_DIR_TX) && (!enabled_tx) && uccf->stopped_tx)
1537 ugeth_restart_tx(ugeth);
1538 if ((mode & COMM_DIR_RX) && (!enabled_rx) && uccf->stopped_rx)
1539 ugeth_restart_rx(ugeth);
1540
1541 ucc_fast_enable(uccf, mode); /* OK to do even if not disabled */
1542
1543 return 0;
1544
1545 }
1546
1547 static int ugeth_disable(struct ucc_geth_private *ugeth, enum comm_dir mode)
1548 {
1549 struct ucc_fast_private *uccf;
1550
1551 uccf = ugeth->uccf;
1552
1553 /* check if the UCC number is in range. */
1554 if (ugeth->ug_info->uf_info.ucc_num >= UCC_MAX_NUM) {
1555 if (netif_msg_probe(ugeth))
1556 ugeth_err("%s: ucc_num out of range.", __func__);
1557 return -EINVAL;
1558 }
1559
1560 /* Stop any transmissions */
1561 if ((mode & COMM_DIR_TX) && uccf->enabled_tx && !uccf->stopped_tx)
1562 ugeth_graceful_stop_tx(ugeth);
1563
1564 /* Stop any receptions */
1565 if ((mode & COMM_DIR_RX) && uccf->enabled_rx && !uccf->stopped_rx)
1566 ugeth_graceful_stop_rx(ugeth);
1567
1568 ucc_fast_disable(ugeth->uccf, mode); /* OK to do even if not enabled */
1569
1570 return 0;
1571 }
1572
1573 static void ugeth_quiesce(struct ucc_geth_private *ugeth)
1574 {
1575 /* Prevent any further xmits, plus detach the device. */
1576 netif_device_detach(ugeth->ndev);
1577
1578 /* Wait for any current xmits to finish. */
1579 netif_tx_disable(ugeth->ndev);
1580
1581 /* Disable the interrupt to avoid NAPI rescheduling. */
1582 disable_irq(ugeth->ug_info->uf_info.irq);
1583
1584 /* Stop NAPI, and possibly wait for its completion. */
1585 napi_disable(&ugeth->napi);
1586 }
1587
1588 static void ugeth_activate(struct ucc_geth_private *ugeth)
1589 {
1590 napi_enable(&ugeth->napi);
1591 enable_irq(ugeth->ug_info->uf_info.irq);
1592 netif_device_attach(ugeth->ndev);
1593 }
1594
1595 /* Called every time the controller might need to be made
1596 * aware of new link state. The PHY code conveys this
1597 * information through variables in the ugeth structure, and this
1598 * function converts those variables into the appropriate
1599 * register values, and can bring down the device if needed.
1600 */
1601
1602 static void adjust_link(struct net_device *dev)
1603 {
1604 struct ucc_geth_private *ugeth = netdev_priv(dev);
1605 struct ucc_geth __iomem *ug_regs;
1606 struct ucc_fast __iomem *uf_regs;
1607 struct phy_device *phydev = ugeth->phydev;
1608 int new_state = 0;
1609
1610 ug_regs = ugeth->ug_regs;
1611 uf_regs = ugeth->uccf->uf_regs;
1612
1613 if (phydev->link) {
1614 u32 tempval = in_be32(&ug_regs->maccfg2);
1615 u32 upsmr = in_be32(&uf_regs->upsmr);
1616 /* Now we make sure that we can be in full duplex mode.
1617 * If not, we operate in half-duplex mode. */
1618 if (phydev->duplex != ugeth->oldduplex) {
1619 new_state = 1;
1620 if (!(phydev->duplex))
1621 tempval &= ~(MACCFG2_FDX);
1622 else
1623 tempval |= MACCFG2_FDX;
1624 ugeth->oldduplex = phydev->duplex;
1625 }
1626
1627 if (phydev->speed != ugeth->oldspeed) {
1628 new_state = 1;
1629 switch (phydev->speed) {
1630 case SPEED_1000:
1631 tempval = ((tempval &
1632 ~(MACCFG2_INTERFACE_MODE_MASK)) |
1633 MACCFG2_INTERFACE_MODE_BYTE);
1634 break;
1635 case SPEED_100:
1636 case SPEED_10:
1637 tempval = ((tempval &
1638 ~(MACCFG2_INTERFACE_MODE_MASK)) |
1639 MACCFG2_INTERFACE_MODE_NIBBLE);
1640 /* if reduced mode, re-set UPSMR.R10M */
1641 if ((ugeth->phy_interface == PHY_INTERFACE_MODE_RMII) ||
1642 (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII) ||
1643 (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII_ID) ||
1644 (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII_RXID) ||
1645 (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII_TXID) ||
1646 (ugeth->phy_interface == PHY_INTERFACE_MODE_RTBI)) {
1647 if (phydev->speed == SPEED_10)
1648 upsmr |= UCC_GETH_UPSMR_R10M;
1649 else
1650 upsmr &= ~UCC_GETH_UPSMR_R10M;
1651 }
1652 break;
1653 default:
1654 if (netif_msg_link(ugeth))
1655 ugeth_warn(
1656 "%s: Ack! Speed (%d) is not 10/100/1000!",
1657 dev->name, phydev->speed);
1658 break;
1659 }
1660 ugeth->oldspeed = phydev->speed;
1661 }
1662
1663 if (!ugeth->oldlink) {
1664 new_state = 1;
1665 ugeth->oldlink = 1;
1666 }
1667
1668 if (new_state) {
1669 /*
1670 * To change the MAC configuration we need to disable
1671 * the controller. To do so, we have to either grab
1672 * ugeth->lock, which is a bad idea since 'graceful
1673 * stop' commands might take quite a while, or we can
1674 * quiesce driver's activity.
1675 */
1676 ugeth_quiesce(ugeth);
1677 ugeth_disable(ugeth, COMM_DIR_RX_AND_TX);
1678
1679 out_be32(&ug_regs->maccfg2, tempval);
1680 out_be32(&uf_regs->upsmr, upsmr);
1681
1682 ugeth_enable(ugeth, COMM_DIR_RX_AND_TX);
1683 ugeth_activate(ugeth);
1684 }
1685 } else if (ugeth->oldlink) {
1686 new_state = 1;
1687 ugeth->oldlink = 0;
1688 ugeth->oldspeed = 0;
1689 ugeth->oldduplex = -1;
1690 }
1691
1692 if (new_state && netif_msg_link(ugeth))
1693 phy_print_status(phydev);
1694 }
1695
1696 /* Initialize TBI PHY interface for communicating with the
1697 * SERDES lynx PHY on the chip. We communicate with this PHY
1698 * through the MDIO bus on each controller, treating it as a
1699 * "normal" PHY at the address found in the UTBIPA register. We assume
1700 * that the UTBIPA register is valid. Either the MDIO bus code will set
1701 * it to a value that doesn't conflict with other PHYs on the bus, or the
1702 * value doesn't matter, as there are no other PHYs on the bus.
1703 */
1704 static void uec_configure_serdes(struct net_device *dev)
1705 {
1706 struct ucc_geth_private *ugeth = netdev_priv(dev);
1707 struct ucc_geth_info *ug_info = ugeth->ug_info;
1708 struct phy_device *tbiphy;
1709
1710 if (!ug_info->tbi_node) {
1711 dev_warn(&dev->dev, "SGMII mode requires that the device "
1712 "tree specify a tbi-handle\n");
1713 return;
1714 }
1715
1716 tbiphy = of_phy_find_device(ug_info->tbi_node);
1717 if (!tbiphy) {
1718 dev_err(&dev->dev, "error: Could not get TBI device\n");
1719 return;
1720 }
1721
1722 /*
1723 * If the link is already up, we must already be ok, and don't need to
1724 * configure and reset the TBI<->SerDes link. Maybe U-Boot configured
1725 * everything for us? Resetting it takes the link down and requires
1726 * several seconds for it to come back.
1727 */
1728 if (phy_read(tbiphy, ENET_TBI_MII_SR) & TBISR_LSTATUS)
1729 return;
1730
1731 /* Single clk mode, mii mode off(for serdes communication) */
1732 phy_write(tbiphy, ENET_TBI_MII_ANA, TBIANA_SETTINGS);
1733
1734 phy_write(tbiphy, ENET_TBI_MII_TBICON, TBICON_CLK_SELECT);
1735
1736 phy_write(tbiphy, ENET_TBI_MII_CR, TBICR_SETTINGS);
1737 }
1738
1739 /* Configure the PHY for dev.
1740 * returns 0 if success. -1 if failure
1741 */
1742 static int init_phy(struct net_device *dev)
1743 {
1744 struct ucc_geth_private *priv = netdev_priv(dev);
1745 struct ucc_geth_info *ug_info = priv->ug_info;
1746 struct phy_device *phydev;
1747
1748 priv->oldlink = 0;
1749 priv->oldspeed = 0;
1750 priv->oldduplex = -1;
1751
1752 phydev = of_phy_connect(dev, ug_info->phy_node, &adjust_link, 0,
1753 priv->phy_interface);
1754 if (!phydev)
1755 phydev = of_phy_connect_fixed_link(dev, &adjust_link,
1756 priv->phy_interface);
1757 if (!phydev) {
1758 dev_err(&dev->dev, "Could not attach to PHY\n");
1759 return -ENODEV;
1760 }
1761
1762 if (priv->phy_interface == PHY_INTERFACE_MODE_SGMII)
1763 uec_configure_serdes(dev);
1764
1765 phydev->supported &= (SUPPORTED_MII |
1766 SUPPORTED_Autoneg |
1767 ADVERTISED_10baseT_Half |
1768 ADVERTISED_10baseT_Full |
1769 ADVERTISED_100baseT_Half |
1770 ADVERTISED_100baseT_Full);
1771
1772 if (priv->max_speed == SPEED_1000)
1773 phydev->supported |= ADVERTISED_1000baseT_Full;
1774
1775 phydev->advertising = phydev->supported;
1776
1777 priv->phydev = phydev;
1778
1779 return 0;
1780 }
1781
1782 static void ugeth_dump_regs(struct ucc_geth_private *ugeth)
1783 {
1784 #ifdef DEBUG
1785 ucc_fast_dump_regs(ugeth->uccf);
1786 dump_regs(ugeth);
1787 dump_bds(ugeth);
1788 #endif
1789 }
1790
1791 static int ugeth_82xx_filtering_clear_all_addr_in_hash(struct ucc_geth_private *
1792 ugeth,
1793 enum enet_addr_type
1794 enet_addr_type)
1795 {
1796 struct ucc_geth_82xx_address_filtering_pram __iomem *p_82xx_addr_filt;
1797 struct ucc_fast_private *uccf;
1798 enum comm_dir comm_dir;
1799 struct list_head *p_lh;
1800 u16 i, num;
1801 u32 __iomem *addr_h;
1802 u32 __iomem *addr_l;
1803 u8 *p_counter;
1804
1805 uccf = ugeth->uccf;
1806
1807 p_82xx_addr_filt =
1808 (struct ucc_geth_82xx_address_filtering_pram __iomem *)
1809 ugeth->p_rx_glbl_pram->addressfiltering;
1810
1811 if (enet_addr_type == ENET_ADDR_TYPE_GROUP) {
1812 addr_h = &(p_82xx_addr_filt->gaddr_h);
1813 addr_l = &(p_82xx_addr_filt->gaddr_l);
1814 p_lh = &ugeth->group_hash_q;
1815 p_counter = &(ugeth->numGroupAddrInHash);
1816 } else if (enet_addr_type == ENET_ADDR_TYPE_INDIVIDUAL) {
1817 addr_h = &(p_82xx_addr_filt->iaddr_h);
1818 addr_l = &(p_82xx_addr_filt->iaddr_l);
1819 p_lh = &ugeth->ind_hash_q;
1820 p_counter = &(ugeth->numIndAddrInHash);
1821 } else
1822 return -EINVAL;
1823
1824 comm_dir = 0;
1825 if (uccf->enabled_tx)
1826 comm_dir |= COMM_DIR_TX;
1827 if (uccf->enabled_rx)
1828 comm_dir |= COMM_DIR_RX;
1829 if (comm_dir)
1830 ugeth_disable(ugeth, comm_dir);
1831
1832 /* Clear the hash table. */
1833 out_be32(addr_h, 0x00000000);
1834 out_be32(addr_l, 0x00000000);
1835
1836 if (!p_lh)
1837 return 0;
1838
1839 num = *p_counter;
1840
1841 /* Delete all remaining CQ elements */
1842 for (i = 0; i < num; i++)
1843 put_enet_addr_container(ENET_ADDR_CONT_ENTRY(dequeue(p_lh)));
1844
1845 *p_counter = 0;
1846
1847 if (comm_dir)
1848 ugeth_enable(ugeth, comm_dir);
1849
1850 return 0;
1851 }
1852
1853 static int ugeth_82xx_filtering_clear_addr_in_paddr(struct ucc_geth_private *ugeth,
1854 u8 paddr_num)
1855 {
1856 ugeth->indAddrRegUsed[paddr_num] = 0; /* mark this paddr as not used */
1857 return hw_clear_addr_in_paddr(ugeth, paddr_num);/* clear in hardware */
1858 }
1859
1860 static void ucc_geth_memclean(struct ucc_geth_private *ugeth)
1861 {
1862 u16 i, j;
1863 u8 __iomem *bd;
1864
1865 if (!ugeth)
1866 return;
1867
1868 if (ugeth->uccf) {
1869 ucc_fast_free(ugeth->uccf);
1870 ugeth->uccf = NULL;
1871 }
1872
1873 if (ugeth->p_thread_data_tx) {
1874 qe_muram_free(ugeth->thread_dat_tx_offset);
1875 ugeth->p_thread_data_tx = NULL;
1876 }
1877 if (ugeth->p_thread_data_rx) {
1878 qe_muram_free(ugeth->thread_dat_rx_offset);
1879 ugeth->p_thread_data_rx = NULL;
1880 }
1881 if (ugeth->p_exf_glbl_param) {
1882 qe_muram_free(ugeth->exf_glbl_param_offset);
1883 ugeth->p_exf_glbl_param = NULL;
1884 }
1885 if (ugeth->p_rx_glbl_pram) {
1886 qe_muram_free(ugeth->rx_glbl_pram_offset);
1887 ugeth->p_rx_glbl_pram = NULL;
1888 }
1889 if (ugeth->p_tx_glbl_pram) {
1890 qe_muram_free(ugeth->tx_glbl_pram_offset);
1891 ugeth->p_tx_glbl_pram = NULL;
1892 }
1893 if (ugeth->p_send_q_mem_reg) {
1894 qe_muram_free(ugeth->send_q_mem_reg_offset);
1895 ugeth->p_send_q_mem_reg = NULL;
1896 }
1897 if (ugeth->p_scheduler) {
1898 qe_muram_free(ugeth->scheduler_offset);
1899 ugeth->p_scheduler = NULL;
1900 }
1901 if (ugeth->p_tx_fw_statistics_pram) {
1902 qe_muram_free(ugeth->tx_fw_statistics_pram_offset);
1903 ugeth->p_tx_fw_statistics_pram = NULL;
1904 }
1905 if (ugeth->p_rx_fw_statistics_pram) {
1906 qe_muram_free(ugeth->rx_fw_statistics_pram_offset);
1907 ugeth->p_rx_fw_statistics_pram = NULL;
1908 }
1909 if (ugeth->p_rx_irq_coalescing_tbl) {
1910 qe_muram_free(ugeth->rx_irq_coalescing_tbl_offset);
1911 ugeth->p_rx_irq_coalescing_tbl = NULL;
1912 }
1913 if (ugeth->p_rx_bd_qs_tbl) {
1914 qe_muram_free(ugeth->rx_bd_qs_tbl_offset);
1915 ugeth->p_rx_bd_qs_tbl = NULL;
1916 }
1917 if (ugeth->p_init_enet_param_shadow) {
1918 return_init_enet_entries(ugeth,
1919 &(ugeth->p_init_enet_param_shadow->
1920 rxthread[0]),
1921 ENET_INIT_PARAM_MAX_ENTRIES_RX,
1922 ugeth->ug_info->riscRx, 1);
1923 return_init_enet_entries(ugeth,
1924 &(ugeth->p_init_enet_param_shadow->
1925 txthread[0]),
1926 ENET_INIT_PARAM_MAX_ENTRIES_TX,
1927 ugeth->ug_info->riscTx, 0);
1928 kfree(ugeth->p_init_enet_param_shadow);
1929 ugeth->p_init_enet_param_shadow = NULL;
1930 }
1931 for (i = 0; i < ugeth->ug_info->numQueuesTx; i++) {
1932 bd = ugeth->p_tx_bd_ring[i];
1933 if (!bd)
1934 continue;
1935 for (j = 0; j < ugeth->ug_info->bdRingLenTx[i]; j++) {
1936 if (ugeth->tx_skbuff[i][j]) {
1937 dma_unmap_single(ugeth->dev,
1938 in_be32(&((struct qe_bd __iomem *)bd)->buf),
1939 (in_be32((u32 __iomem *)bd) &
1940 BD_LENGTH_MASK),
1941 DMA_TO_DEVICE);
1942 dev_kfree_skb_any(ugeth->tx_skbuff[i][j]);
1943 ugeth->tx_skbuff[i][j] = NULL;
1944 }
1945 }
1946
1947 kfree(ugeth->tx_skbuff[i]);
1948
1949 if (ugeth->p_tx_bd_ring[i]) {
1950 if (ugeth->ug_info->uf_info.bd_mem_part ==
1951 MEM_PART_SYSTEM)
1952 kfree((void *)ugeth->tx_bd_ring_offset[i]);
1953 else if (ugeth->ug_info->uf_info.bd_mem_part ==
1954 MEM_PART_MURAM)
1955 qe_muram_free(ugeth->tx_bd_ring_offset[i]);
1956 ugeth->p_tx_bd_ring[i] = NULL;
1957 }
1958 }
1959 for (i = 0; i < ugeth->ug_info->numQueuesRx; i++) {
1960 if (ugeth->p_rx_bd_ring[i]) {
1961 /* Return existing data buffers in ring */
1962 bd = ugeth->p_rx_bd_ring[i];
1963 for (j = 0; j < ugeth->ug_info->bdRingLenRx[i]; j++) {
1964 if (ugeth->rx_skbuff[i][j]) {
1965 dma_unmap_single(ugeth->dev,
1966 in_be32(&((struct qe_bd __iomem *)bd)->buf),
1967 ugeth->ug_info->
1968 uf_info.max_rx_buf_length +
1969 UCC_GETH_RX_DATA_BUF_ALIGNMENT,
1970 DMA_FROM_DEVICE);
1971 dev_kfree_skb_any(
1972 ugeth->rx_skbuff[i][j]);
1973 ugeth->rx_skbuff[i][j] = NULL;
1974 }
1975 bd += sizeof(struct qe_bd);
1976 }
1977
1978 kfree(ugeth->rx_skbuff[i]);
1979
1980 if (ugeth->ug_info->uf_info.bd_mem_part ==
1981 MEM_PART_SYSTEM)
1982 kfree((void *)ugeth->rx_bd_ring_offset[i]);
1983 else if (ugeth->ug_info->uf_info.bd_mem_part ==
1984 MEM_PART_MURAM)
1985 qe_muram_free(ugeth->rx_bd_ring_offset[i]);
1986 ugeth->p_rx_bd_ring[i] = NULL;
1987 }
1988 }
1989 while (!list_empty(&ugeth->group_hash_q))
1990 put_enet_addr_container(ENET_ADDR_CONT_ENTRY
1991 (dequeue(&ugeth->group_hash_q)));
1992 while (!list_empty(&ugeth->ind_hash_q))
1993 put_enet_addr_container(ENET_ADDR_CONT_ENTRY
1994 (dequeue(&ugeth->ind_hash_q)));
1995 if (ugeth->ug_regs) {
1996 iounmap(ugeth->ug_regs);
1997 ugeth->ug_regs = NULL;
1998 }
1999
2000 skb_queue_purge(&ugeth->rx_recycle);
2001 }
2002
2003 static void ucc_geth_set_multi(struct net_device *dev)
2004 {
2005 struct ucc_geth_private *ugeth;
2006 struct netdev_hw_addr *ha;
2007 struct ucc_fast __iomem *uf_regs;
2008 struct ucc_geth_82xx_address_filtering_pram __iomem *p_82xx_addr_filt;
2009
2010 ugeth = netdev_priv(dev);
2011
2012 uf_regs = ugeth->uccf->uf_regs;
2013
2014 if (dev->flags & IFF_PROMISC) {
2015 setbits32(&uf_regs->upsmr, UCC_GETH_UPSMR_PRO);
2016 } else {
2017 clrbits32(&uf_regs->upsmr, UCC_GETH_UPSMR_PRO);
2018
2019 p_82xx_addr_filt =
2020 (struct ucc_geth_82xx_address_filtering_pram __iomem *) ugeth->
2021 p_rx_glbl_pram->addressfiltering;
2022
2023 if (dev->flags & IFF_ALLMULTI) {
2024 /* Catch all multicast addresses, so set the
2025 * filter to all 1's.
2026 */
2027 out_be32(&p_82xx_addr_filt->gaddr_h, 0xffffffff);
2028 out_be32(&p_82xx_addr_filt->gaddr_l, 0xffffffff);
2029 } else {
2030 /* Clear filter and add the addresses in the list.
2031 */
2032 out_be32(&p_82xx_addr_filt->gaddr_h, 0x0);
2033 out_be32(&p_82xx_addr_filt->gaddr_l, 0x0);
2034
2035 netdev_for_each_mc_addr(ha, dev) {
2036 /* Ask CPM to run CRC and set bit in
2037 * filter mask.
2038 */
2039 hw_add_addr_in_hash(ugeth, ha->addr);
2040 }
2041 }
2042 }
2043 }
2044
2045 static void ucc_geth_stop(struct ucc_geth_private *ugeth)
2046 {
2047 struct ucc_geth __iomem *ug_regs = ugeth->ug_regs;
2048 struct phy_device *phydev = ugeth->phydev;
2049
2050 ugeth_vdbg("%s: IN", __func__);
2051
2052 /*
2053 * Tell the kernel the link is down.
2054 * Must be done before disabling the controller
2055 * or deadlock may happen.
2056 */
2057 phy_stop(phydev);
2058
2059 /* Disable the controller */
2060 ugeth_disable(ugeth, COMM_DIR_RX_AND_TX);
2061
2062 /* Mask all interrupts */
2063 out_be32(ugeth->uccf->p_uccm, 0x00000000);
2064
2065 /* Clear all interrupts */
2066 out_be32(ugeth->uccf->p_ucce, 0xffffffff);
2067
2068 /* Disable Rx and Tx */
2069 clrbits32(&ug_regs->maccfg1, MACCFG1_ENABLE_RX | MACCFG1_ENABLE_TX);
2070
2071 ucc_geth_memclean(ugeth);
2072 }
2073
2074 static int ucc_struct_init(struct ucc_geth_private *ugeth)
2075 {
2076 struct ucc_geth_info *ug_info;
2077 struct ucc_fast_info *uf_info;
2078 int i;
2079
2080 ug_info = ugeth->ug_info;
2081 uf_info = &ug_info->uf_info;
2082
2083 if (!((uf_info->bd_mem_part == MEM_PART_SYSTEM) ||
2084 (uf_info->bd_mem_part == MEM_PART_MURAM))) {
2085 if (netif_msg_probe(ugeth))
2086 ugeth_err("%s: Bad memory partition value.",
2087 __func__);
2088 return -EINVAL;
2089 }
2090
2091 /* Rx BD lengths */
2092 for (i = 0; i < ug_info->numQueuesRx; i++) {
2093 if ((ug_info->bdRingLenRx[i] < UCC_GETH_RX_BD_RING_SIZE_MIN) ||
2094 (ug_info->bdRingLenRx[i] %
2095 UCC_GETH_RX_BD_RING_SIZE_ALIGNMENT)) {
2096 if (netif_msg_probe(ugeth))
2097 ugeth_err
2098 ("%s: Rx BD ring length must be multiple of 4, no smaller than 8.",
2099 __func__);
2100 return -EINVAL;
2101 }
2102 }
2103
2104 /* Tx BD lengths */
2105 for (i = 0; i < ug_info->numQueuesTx; i++) {
2106 if (ug_info->bdRingLenTx[i] < UCC_GETH_TX_BD_RING_SIZE_MIN) {
2107 if (netif_msg_probe(ugeth))
2108 ugeth_err
2109 ("%s: Tx BD ring length must be no smaller than 2.",
2110 __func__);
2111 return -EINVAL;
2112 }
2113 }
2114
2115 /* mrblr */
2116 if ((uf_info->max_rx_buf_length == 0) ||
2117 (uf_info->max_rx_buf_length % UCC_GETH_MRBLR_ALIGNMENT)) {
2118 if (netif_msg_probe(ugeth))
2119 ugeth_err
2120 ("%s: max_rx_buf_length must be non-zero multiple of 128.",
2121 __func__);
2122 return -EINVAL;
2123 }
2124
2125 /* num Tx queues */
2126 if (ug_info->numQueuesTx > NUM_TX_QUEUES) {
2127 if (netif_msg_probe(ugeth))
2128 ugeth_err("%s: number of tx queues too large.", __func__);
2129 return -EINVAL;
2130 }
2131
2132 /* num Rx queues */
2133 if (ug_info->numQueuesRx > NUM_RX_QUEUES) {
2134 if (netif_msg_probe(ugeth))
2135 ugeth_err("%s: number of rx queues too large.", __func__);
2136 return -EINVAL;
2137 }
2138
2139 /* l2qt */
2140 for (i = 0; i < UCC_GETH_VLAN_PRIORITY_MAX; i++) {
2141 if (ug_info->l2qt[i] >= ug_info->numQueuesRx) {
2142 if (netif_msg_probe(ugeth))
2143 ugeth_err
2144 ("%s: VLAN priority table entry must not be"
2145 " larger than number of Rx queues.",
2146 __func__);
2147 return -EINVAL;
2148 }
2149 }
2150
2151 /* l3qt */
2152 for (i = 0; i < UCC_GETH_IP_PRIORITY_MAX; i++) {
2153 if (ug_info->l3qt[i] >= ug_info->numQueuesRx) {
2154 if (netif_msg_probe(ugeth))
2155 ugeth_err
2156 ("%s: IP priority table entry must not be"
2157 " larger than number of Rx queues.",
2158 __func__);
2159 return -EINVAL;
2160 }
2161 }
2162
2163 if (ug_info->cam && !ug_info->ecamptr) {
2164 if (netif_msg_probe(ugeth))
2165 ugeth_err("%s: If cam mode is chosen, must supply cam ptr.",
2166 __func__);
2167 return -EINVAL;
2168 }
2169
2170 if ((ug_info->numStationAddresses !=
2171 UCC_GETH_NUM_OF_STATION_ADDRESSES_1) &&
2172 ug_info->rxExtendedFiltering) {
2173 if (netif_msg_probe(ugeth))
2174 ugeth_err("%s: Number of station addresses greater than 1 "
2175 "not allowed in extended parsing mode.",
2176 __func__);
2177 return -EINVAL;
2178 }
2179
2180 /* Generate uccm_mask for receive */
2181 uf_info->uccm_mask = ug_info->eventRegMask & UCCE_OTHER;/* Errors */
2182 for (i = 0; i < ug_info->numQueuesRx; i++)
2183 uf_info->uccm_mask |= (UCC_GETH_UCCE_RXF0 << i);
2184
2185 for (i = 0; i < ug_info->numQueuesTx; i++)
2186 uf_info->uccm_mask |= (UCC_GETH_UCCE_TXB0 << i);
2187 /* Initialize the general fast UCC block. */
2188 if (ucc_fast_init(uf_info, &ugeth->uccf)) {
2189 if (netif_msg_probe(ugeth))
2190 ugeth_err("%s: Failed to init uccf.", __func__);
2191 return -ENOMEM;
2192 }
2193
2194 /* read the number of risc engines, update the riscTx and riscRx
2195 * if there are 4 riscs in QE
2196 */
2197 if (qe_get_num_of_risc() == 4) {
2198 ug_info->riscTx = QE_RISC_ALLOCATION_FOUR_RISCS;
2199 ug_info->riscRx = QE_RISC_ALLOCATION_FOUR_RISCS;
2200 }
2201
2202 ugeth->ug_regs = ioremap(uf_info->regs, sizeof(*ugeth->ug_regs));
2203 if (!ugeth->ug_regs) {
2204 if (netif_msg_probe(ugeth))
2205 ugeth_err("%s: Failed to ioremap regs.", __func__);
2206 return -ENOMEM;
2207 }
2208
2209 skb_queue_head_init(&ugeth->rx_recycle);
2210
2211 return 0;
2212 }
2213
2214 static int ucc_geth_startup(struct ucc_geth_private *ugeth)
2215 {
2216 struct ucc_geth_82xx_address_filtering_pram __iomem *p_82xx_addr_filt;
2217 struct ucc_geth_init_pram __iomem *p_init_enet_pram;
2218 struct ucc_fast_private *uccf;
2219 struct ucc_geth_info *ug_info;
2220 struct ucc_fast_info *uf_info;
2221 struct ucc_fast __iomem *uf_regs;
2222 struct ucc_geth __iomem *ug_regs;
2223 int ret_val = -EINVAL;
2224 u32 remoder = UCC_GETH_REMODER_INIT;
2225 u32 init_enet_pram_offset, cecr_subblock, command;
2226 u32 ifstat, i, j, size, l2qt, l3qt, length;
2227 u16 temoder = UCC_GETH_TEMODER_INIT;
2228 u16 test;
2229 u8 function_code = 0;
2230 u8 __iomem *bd;
2231 u8 __iomem *endOfRing;
2232 u8 numThreadsRxNumerical, numThreadsTxNumerical;
2233
2234 ugeth_vdbg("%s: IN", __func__);
2235 uccf = ugeth->uccf;
2236 ug_info = ugeth->ug_info;
2237 uf_info = &ug_info->uf_info;
2238 uf_regs = uccf->uf_regs;
2239 ug_regs = ugeth->ug_regs;
2240
2241 switch (ug_info->numThreadsRx) {
2242 case UCC_GETH_NUM_OF_THREADS_1:
2243 numThreadsRxNumerical = 1;
2244 break;
2245 case UCC_GETH_NUM_OF_THREADS_2:
2246 numThreadsRxNumerical = 2;
2247 break;
2248 case UCC_GETH_NUM_OF_THREADS_4:
2249 numThreadsRxNumerical = 4;
2250 break;
2251 case UCC_GETH_NUM_OF_THREADS_6:
2252 numThreadsRxNumerical = 6;
2253 break;
2254 case UCC_GETH_NUM_OF_THREADS_8:
2255 numThreadsRxNumerical = 8;
2256 break;
2257 default:
2258 if (netif_msg_ifup(ugeth))
2259 ugeth_err("%s: Bad number of Rx threads value.",
2260 __func__);
2261 return -EINVAL;
2262 break;
2263 }
2264
2265 switch (ug_info->numThreadsTx) {
2266 case UCC_GETH_NUM_OF_THREADS_1:
2267 numThreadsTxNumerical = 1;
2268 break;
2269 case UCC_GETH_NUM_OF_THREADS_2:
2270 numThreadsTxNumerical = 2;
2271 break;
2272 case UCC_GETH_NUM_OF_THREADS_4:
2273 numThreadsTxNumerical = 4;
2274 break;
2275 case UCC_GETH_NUM_OF_THREADS_6:
2276 numThreadsTxNumerical = 6;
2277 break;
2278 case UCC_GETH_NUM_OF_THREADS_8:
2279 numThreadsTxNumerical = 8;
2280 break;
2281 default:
2282 if (netif_msg_ifup(ugeth))
2283 ugeth_err("%s: Bad number of Tx threads value.",
2284 __func__);
2285 return -EINVAL;
2286 break;
2287 }
2288
2289 /* Calculate rx_extended_features */
2290 ugeth->rx_non_dynamic_extended_features = ug_info->ipCheckSumCheck ||
2291 ug_info->ipAddressAlignment ||
2292 (ug_info->numStationAddresses !=
2293 UCC_GETH_NUM_OF_STATION_ADDRESSES_1);
2294
2295 ugeth->rx_extended_features = ugeth->rx_non_dynamic_extended_features ||
2296 (ug_info->vlanOperationTagged != UCC_GETH_VLAN_OPERATION_TAGGED_NOP) ||
2297 (ug_info->vlanOperationNonTagged !=
2298 UCC_GETH_VLAN_OPERATION_NON_TAGGED_NOP);
2299
2300 init_default_reg_vals(&uf_regs->upsmr,
2301 &ug_regs->maccfg1, &ug_regs->maccfg2);
2302
2303 /* Set UPSMR */
2304 /* For more details see the hardware spec. */
2305 init_rx_parameters(ug_info->bro,
2306 ug_info->rsh, ug_info->pro, &uf_regs->upsmr);
2307
2308 /* We're going to ignore other registers for now, */
2309 /* except as needed to get up and running */
2310
2311 /* Set MACCFG1 */
2312 /* For more details see the hardware spec. */
2313 init_flow_control_params(ug_info->aufc,
2314 ug_info->receiveFlowControl,
2315 ug_info->transmitFlowControl,
2316 ug_info->pausePeriod,
2317 ug_info->extensionField,
2318 &uf_regs->upsmr,
2319 &ug_regs->uempr, &ug_regs->maccfg1);
2320
2321 setbits32(&ug_regs->maccfg1, MACCFG1_ENABLE_RX | MACCFG1_ENABLE_TX);
2322
2323 /* Set IPGIFG */
2324 /* For more details see the hardware spec. */
2325 ret_val = init_inter_frame_gap_params(ug_info->nonBackToBackIfgPart1,
2326 ug_info->nonBackToBackIfgPart2,
2327 ug_info->
2328 miminumInterFrameGapEnforcement,
2329 ug_info->backToBackInterFrameGap,
2330 &ug_regs->ipgifg);
2331 if (ret_val != 0) {
2332 if (netif_msg_ifup(ugeth))
2333 ugeth_err("%s: IPGIFG initialization parameter too large.",
2334 __func__);
2335 return ret_val;
2336 }
2337
2338 /* Set HAFDUP */
2339 /* For more details see the hardware spec. */
2340 ret_val = init_half_duplex_params(ug_info->altBeb,
2341 ug_info->backPressureNoBackoff,
2342 ug_info->noBackoff,
2343 ug_info->excessDefer,
2344 ug_info->altBebTruncation,
2345 ug_info->maxRetransmission,
2346 ug_info->collisionWindow,
2347 &ug_regs->hafdup);
2348 if (ret_val != 0) {
2349 if (netif_msg_ifup(ugeth))
2350 ugeth_err("%s: Half Duplex initialization parameter too large.",
2351 __func__);
2352 return ret_val;
2353 }
2354
2355 /* Set IFSTAT */
2356 /* For more details see the hardware spec. */
2357 /* Read only - resets upon read */
2358 ifstat = in_be32(&ug_regs->ifstat);
2359
2360 /* Clear UEMPR */
2361 /* For more details see the hardware spec. */
2362 out_be32(&ug_regs->uempr, 0);
2363
2364 /* Set UESCR */
2365 /* For more details see the hardware spec. */
2366 init_hw_statistics_gathering_mode((ug_info->statisticsMode &
2367 UCC_GETH_STATISTICS_GATHERING_MODE_HARDWARE),
2368 0, &uf_regs->upsmr, &ug_regs->uescr);
2369
2370 /* Allocate Tx bds */
2371 for (j = 0; j < ug_info->numQueuesTx; j++) {
2372 /* Allocate in multiple of
2373 UCC_GETH_TX_BD_RING_SIZE_MEMORY_ALIGNMENT,
2374 according to spec */
2375 length = ((ug_info->bdRingLenTx[j] * sizeof(struct qe_bd))
2376 / UCC_GETH_TX_BD_RING_SIZE_MEMORY_ALIGNMENT)
2377 * UCC_GETH_TX_BD_RING_SIZE_MEMORY_ALIGNMENT;
2378 if ((ug_info->bdRingLenTx[j] * sizeof(struct qe_bd)) %
2379 UCC_GETH_TX_BD_RING_SIZE_MEMORY_ALIGNMENT)
2380 length += UCC_GETH_TX_BD_RING_SIZE_MEMORY_ALIGNMENT;
2381 if (uf_info->bd_mem_part == MEM_PART_SYSTEM) {
2382 u32 align = 4;
2383 if (UCC_GETH_TX_BD_RING_ALIGNMENT > 4)
2384 align = UCC_GETH_TX_BD_RING_ALIGNMENT;
2385 ugeth->tx_bd_ring_offset[j] =
2386 (u32) kmalloc((u32) (length + align), GFP_KERNEL);
2387
2388 if (ugeth->tx_bd_ring_offset[j] != 0)
2389 ugeth->p_tx_bd_ring[j] =
2390 (u8 __iomem *)((ugeth->tx_bd_ring_offset[j] +
2391 align) & ~(align - 1));
2392 } else if (uf_info->bd_mem_part == MEM_PART_MURAM) {
2393 ugeth->tx_bd_ring_offset[j] =
2394 qe_muram_alloc(length,
2395 UCC_GETH_TX_BD_RING_ALIGNMENT);
2396 if (!IS_ERR_VALUE(ugeth->tx_bd_ring_offset[j]))
2397 ugeth->p_tx_bd_ring[j] =
2398 (u8 __iomem *) qe_muram_addr(ugeth->
2399 tx_bd_ring_offset[j]);
2400 }
2401 if (!ugeth->p_tx_bd_ring[j]) {
2402 if (netif_msg_ifup(ugeth))
2403 ugeth_err
2404 ("%s: Can not allocate memory for Tx bd rings.",
2405 __func__);
2406 return -ENOMEM;
2407 }
2408 /* Zero unused end of bd ring, according to spec */
2409 memset_io((void __iomem *)(ugeth->p_tx_bd_ring[j] +
2410 ug_info->bdRingLenTx[j] * sizeof(struct qe_bd)), 0,
2411 length - ug_info->bdRingLenTx[j] * sizeof(struct qe_bd));
2412 }
2413
2414 /* Allocate Rx bds */
2415 for (j = 0; j < ug_info->numQueuesRx; j++) {
2416 length = ug_info->bdRingLenRx[j] * sizeof(struct qe_bd);
2417 if (uf_info->bd_mem_part == MEM_PART_SYSTEM) {
2418 u32 align = 4;
2419 if (UCC_GETH_RX_BD_RING_ALIGNMENT > 4)
2420 align = UCC_GETH_RX_BD_RING_ALIGNMENT;
2421 ugeth->rx_bd_ring_offset[j] =
2422 (u32) kmalloc((u32) (length + align), GFP_KERNEL);
2423 if (ugeth->rx_bd_ring_offset[j] != 0)
2424 ugeth->p_rx_bd_ring[j] =
2425 (u8 __iomem *)((ugeth->rx_bd_ring_offset[j] +
2426 align) & ~(align - 1));
2427 } else if (uf_info->bd_mem_part == MEM_PART_MURAM) {
2428 ugeth->rx_bd_ring_offset[j] =
2429 qe_muram_alloc(length,
2430 UCC_GETH_RX_BD_RING_ALIGNMENT);
2431 if (!IS_ERR_VALUE(ugeth->rx_bd_ring_offset[j]))
2432 ugeth->p_rx_bd_ring[j] =
2433 (u8 __iomem *) qe_muram_addr(ugeth->
2434 rx_bd_ring_offset[j]);
2435 }
2436 if (!ugeth->p_rx_bd_ring[j]) {
2437 if (netif_msg_ifup(ugeth))
2438 ugeth_err
2439 ("%s: Can not allocate memory for Rx bd rings.",
2440 __func__);
2441 return -ENOMEM;
2442 }
2443 }
2444
2445 /* Init Tx bds */
2446 for (j = 0; j < ug_info->numQueuesTx; j++) {
2447 /* Setup the skbuff rings */
2448 ugeth->tx_skbuff[j] = kmalloc(sizeof(struct sk_buff *) *
2449 ugeth->ug_info->bdRingLenTx[j],
2450 GFP_KERNEL);
2451
2452 if (ugeth->tx_skbuff[j] == NULL) {
2453 if (netif_msg_ifup(ugeth))
2454 ugeth_err("%s: Could not allocate tx_skbuff",
2455 __func__);
2456 return -ENOMEM;
2457 }
2458
2459 for (i = 0; i < ugeth->ug_info->bdRingLenTx[j]; i++)
2460 ugeth->tx_skbuff[j][i] = NULL;
2461
2462 ugeth->skb_curtx[j] = ugeth->skb_dirtytx[j] = 0;
2463 bd = ugeth->confBd[j] = ugeth->txBd[j] = ugeth->p_tx_bd_ring[j];
2464 for (i = 0; i < ug_info->bdRingLenTx[j]; i++) {
2465 /* clear bd buffer */
2466 out_be32(&((struct qe_bd __iomem *)bd)->buf, 0);
2467 /* set bd status and length */
2468 out_be32((u32 __iomem *)bd, 0);
2469 bd += sizeof(struct qe_bd);
2470 }
2471 bd -= sizeof(struct qe_bd);
2472 /* set bd status and length */
2473 out_be32((u32 __iomem *)bd, T_W); /* for last BD set Wrap bit */
2474 }
2475
2476 /* Init Rx bds */
2477 for (j = 0; j < ug_info->numQueuesRx; j++) {
2478 /* Setup the skbuff rings */
2479 ugeth->rx_skbuff[j] = kmalloc(sizeof(struct sk_buff *) *
2480 ugeth->ug_info->bdRingLenRx[j],
2481 GFP_KERNEL);
2482
2483 if (ugeth->rx_skbuff[j] == NULL) {
2484 if (netif_msg_ifup(ugeth))
2485 ugeth_err("%s: Could not allocate rx_skbuff",
2486 __func__);
2487 return -ENOMEM;
2488 }
2489
2490 for (i = 0; i < ugeth->ug_info->bdRingLenRx[j]; i++)
2491 ugeth->rx_skbuff[j][i] = NULL;
2492
2493 ugeth->skb_currx[j] = 0;
2494 bd = ugeth->rxBd[j] = ugeth->p_rx_bd_ring[j];
2495 for (i = 0; i < ug_info->bdRingLenRx[j]; i++) {
2496 /* set bd status and length */
2497 out_be32((u32 __iomem *)bd, R_I);
2498 /* clear bd buffer */
2499 out_be32(&((struct qe_bd __iomem *)bd)->buf, 0);
2500 bd += sizeof(struct qe_bd);
2501 }
2502 bd -= sizeof(struct qe_bd);
2503 /* set bd status and length */
2504 out_be32((u32 __iomem *)bd, R_W); /* for last BD set Wrap bit */
2505 }
2506
2507 /*
2508 * Global PRAM
2509 */
2510 /* Tx global PRAM */
2511 /* Allocate global tx parameter RAM page */
2512 ugeth->tx_glbl_pram_offset =
2513 qe_muram_alloc(sizeof(struct ucc_geth_tx_global_pram),
2514 UCC_GETH_TX_GLOBAL_PRAM_ALIGNMENT);
2515 if (IS_ERR_VALUE(ugeth->tx_glbl_pram_offset)) {
2516 if (netif_msg_ifup(ugeth))
2517 ugeth_err
2518 ("%s: Can not allocate DPRAM memory for p_tx_glbl_pram.",
2519 __func__);
2520 return -ENOMEM;
2521 }
2522 ugeth->p_tx_glbl_pram =
2523 (struct ucc_geth_tx_global_pram __iomem *) qe_muram_addr(ugeth->
2524 tx_glbl_pram_offset);
2525 /* Zero out p_tx_glbl_pram */
2526 memset_io((void __iomem *)ugeth->p_tx_glbl_pram, 0, sizeof(struct ucc_geth_tx_global_pram));
2527
2528 /* Fill global PRAM */
2529
2530 /* TQPTR */
2531 /* Size varies with number of Tx threads */
2532 ugeth->thread_dat_tx_offset =
2533 qe_muram_alloc(numThreadsTxNumerical *
2534 sizeof(struct ucc_geth_thread_data_tx) +
2535 32 * (numThreadsTxNumerical == 1),
2536 UCC_GETH_THREAD_DATA_ALIGNMENT);
2537 if (IS_ERR_VALUE(ugeth->thread_dat_tx_offset)) {
2538 if (netif_msg_ifup(ugeth))
2539 ugeth_err
2540 ("%s: Can not allocate DPRAM memory for p_thread_data_tx.",
2541 __func__);
2542 return -ENOMEM;
2543 }
2544
2545 ugeth->p_thread_data_tx =
2546 (struct ucc_geth_thread_data_tx __iomem *) qe_muram_addr(ugeth->
2547 thread_dat_tx_offset);
2548 out_be32(&ugeth->p_tx_glbl_pram->tqptr, ugeth->thread_dat_tx_offset);
2549
2550 /* vtagtable */
2551 for (i = 0; i < UCC_GETH_TX_VTAG_TABLE_ENTRY_MAX; i++)
2552 out_be32(&ugeth->p_tx_glbl_pram->vtagtable[i],
2553 ug_info->vtagtable[i]);
2554
2555 /* iphoffset */
2556 for (i = 0; i < TX_IP_OFFSET_ENTRY_MAX; i++)
2557 out_8(&ugeth->p_tx_glbl_pram->iphoffset[i],
2558 ug_info->iphoffset[i]);
2559
2560 /* SQPTR */
2561 /* Size varies with number of Tx queues */
2562 ugeth->send_q_mem_reg_offset =
2563 qe_muram_alloc(ug_info->numQueuesTx *
2564 sizeof(struct ucc_geth_send_queue_qd),
2565 UCC_GETH_SEND_QUEUE_QUEUE_DESCRIPTOR_ALIGNMENT);
2566 if (IS_ERR_VALUE(ugeth->send_q_mem_reg_offset)) {
2567 if (netif_msg_ifup(ugeth))
2568 ugeth_err
2569 ("%s: Can not allocate DPRAM memory for p_send_q_mem_reg.",
2570 __func__);
2571 return -ENOMEM;
2572 }
2573
2574 ugeth->p_send_q_mem_reg =
2575 (struct ucc_geth_send_queue_mem_region __iomem *) qe_muram_addr(ugeth->
2576 send_q_mem_reg_offset);
2577 out_be32(&ugeth->p_tx_glbl_pram->sqptr, ugeth->send_q_mem_reg_offset);
2578
2579 /* Setup the table */
2580 /* Assume BD rings are already established */
2581 for (i = 0; i < ug_info->numQueuesTx; i++) {
2582 endOfRing =
2583 ugeth->p_tx_bd_ring[i] + (ug_info->bdRingLenTx[i] -
2584 1) * sizeof(struct qe_bd);
2585 if (ugeth->ug_info->uf_info.bd_mem_part == MEM_PART_SYSTEM) {
2586 out_be32(&ugeth->p_send_q_mem_reg->sqqd[i].bd_ring_base,
2587 (u32) virt_to_phys(ugeth->p_tx_bd_ring[i]));
2588 out_be32(&ugeth->p_send_q_mem_reg->sqqd[i].
2589 last_bd_completed_address,
2590 (u32) virt_to_phys(endOfRing));
2591 } else if (ugeth->ug_info->uf_info.bd_mem_part ==
2592 MEM_PART_MURAM) {
2593 out_be32(&ugeth->p_send_q_mem_reg->sqqd[i].bd_ring_base,
2594 (u32) immrbar_virt_to_phys(ugeth->
2595 p_tx_bd_ring[i]));
2596 out_be32(&ugeth->p_send_q_mem_reg->sqqd[i].
2597 last_bd_completed_address,
2598 (u32) immrbar_virt_to_phys(endOfRing));
2599 }
2600 }
2601
2602 /* schedulerbasepointer */
2603
2604 if (ug_info->numQueuesTx > 1) {
2605 /* scheduler exists only if more than 1 tx queue */
2606 ugeth->scheduler_offset =
2607 qe_muram_alloc(sizeof(struct ucc_geth_scheduler),
2608 UCC_GETH_SCHEDULER_ALIGNMENT);
2609 if (IS_ERR_VALUE(ugeth->scheduler_offset)) {
2610 if (netif_msg_ifup(ugeth))
2611 ugeth_err
2612 ("%s: Can not allocate DPRAM memory for p_scheduler.",
2613 __func__);
2614 return -ENOMEM;
2615 }
2616
2617 ugeth->p_scheduler =
2618 (struct ucc_geth_scheduler __iomem *) qe_muram_addr(ugeth->
2619 scheduler_offset);
2620 out_be32(&ugeth->p_tx_glbl_pram->schedulerbasepointer,
2621 ugeth->scheduler_offset);
2622 /* Zero out p_scheduler */
2623 memset_io((void __iomem *)ugeth->p_scheduler, 0, sizeof(struct ucc_geth_scheduler));
2624
2625 /* Set values in scheduler */
2626 out_be32(&ugeth->p_scheduler->mblinterval,
2627 ug_info->mblinterval);
2628 out_be16(&ugeth->p_scheduler->nortsrbytetime,
2629 ug_info->nortsrbytetime);
2630 out_8(&ugeth->p_scheduler->fracsiz, ug_info->fracsiz);
2631 out_8(&ugeth->p_scheduler->strictpriorityq,
2632 ug_info->strictpriorityq);
2633 out_8(&ugeth->p_scheduler->txasap, ug_info->txasap);
2634 out_8(&ugeth->p_scheduler->extrabw, ug_info->extrabw);
2635 for (i = 0; i < NUM_TX_QUEUES; i++)
2636 out_8(&ugeth->p_scheduler->weightfactor[i],
2637 ug_info->weightfactor[i]);
2638
2639 /* Set pointers to cpucount registers in scheduler */
2640 ugeth->p_cpucount[0] = &(ugeth->p_scheduler->cpucount0);
2641 ugeth->p_cpucount[1] = &(ugeth->p_scheduler->cpucount1);
2642 ugeth->p_cpucount[2] = &(ugeth->p_scheduler->cpucount2);
2643 ugeth->p_cpucount[3] = &(ugeth->p_scheduler->cpucount3);
2644 ugeth->p_cpucount[4] = &(ugeth->p_scheduler->cpucount4);
2645 ugeth->p_cpucount[5] = &(ugeth->p_scheduler->cpucount5);
2646 ugeth->p_cpucount[6] = &(ugeth->p_scheduler->cpucount6);
2647 ugeth->p_cpucount[7] = &(ugeth->p_scheduler->cpucount7);
2648 }
2649
2650 /* schedulerbasepointer */
2651 /* TxRMON_PTR (statistics) */
2652 if (ug_info->
2653 statisticsMode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_TX) {
2654 ugeth->tx_fw_statistics_pram_offset =
2655 qe_muram_alloc(sizeof
2656 (struct ucc_geth_tx_firmware_statistics_pram),
2657 UCC_GETH_TX_STATISTICS_ALIGNMENT);
2658 if (IS_ERR_VALUE(ugeth->tx_fw_statistics_pram_offset)) {
2659 if (netif_msg_ifup(ugeth))
2660 ugeth_err
2661 ("%s: Can not allocate DPRAM memory for"
2662 " p_tx_fw_statistics_pram.",
2663 __func__);
2664 return -ENOMEM;
2665 }
2666 ugeth->p_tx_fw_statistics_pram =
2667 (struct ucc_geth_tx_firmware_statistics_pram __iomem *)
2668 qe_muram_addr(ugeth->tx_fw_statistics_pram_offset);
2669 /* Zero out p_tx_fw_statistics_pram */
2670 memset_io((void __iomem *)ugeth->p_tx_fw_statistics_pram,
2671 0, sizeof(struct ucc_geth_tx_firmware_statistics_pram));
2672 }
2673
2674 /* temoder */
2675 /* Already has speed set */
2676
2677 if (ug_info->numQueuesTx > 1)
2678 temoder |= TEMODER_SCHEDULER_ENABLE;
2679 if (ug_info->ipCheckSumGenerate)
2680 temoder |= TEMODER_IP_CHECKSUM_GENERATE;
2681 temoder |= ((ug_info->numQueuesTx - 1) << TEMODER_NUM_OF_QUEUES_SHIFT);
2682 out_be16(&ugeth->p_tx_glbl_pram->temoder, temoder);
2683
2684 test = in_be16(&ugeth->p_tx_glbl_pram->temoder);
2685
2686 /* Function code register value to be used later */
2687 function_code = UCC_BMR_BO_BE | UCC_BMR_GBL;
2688 /* Required for QE */
2689
2690 /* function code register */
2691 out_be32(&ugeth->p_tx_glbl_pram->tstate, ((u32) function_code) << 24);
2692
2693 /* Rx global PRAM */
2694 /* Allocate global rx parameter RAM page */
2695 ugeth->rx_glbl_pram_offset =
2696 qe_muram_alloc(sizeof(struct ucc_geth_rx_global_pram),
2697 UCC_GETH_RX_GLOBAL_PRAM_ALIGNMENT);
2698 if (IS_ERR_VALUE(ugeth->rx_glbl_pram_offset)) {
2699 if (netif_msg_ifup(ugeth))
2700 ugeth_err
2701 ("%s: Can not allocate DPRAM memory for p_rx_glbl_pram.",
2702 __func__);
2703 return -ENOMEM;
2704 }
2705 ugeth->p_rx_glbl_pram =
2706 (struct ucc_geth_rx_global_pram __iomem *) qe_muram_addr(ugeth->
2707 rx_glbl_pram_offset);
2708 /* Zero out p_rx_glbl_pram */
2709 memset_io((void __iomem *)ugeth->p_rx_glbl_pram, 0, sizeof(struct ucc_geth_rx_global_pram));
2710
2711 /* Fill global PRAM */
2712
2713 /* RQPTR */
2714 /* Size varies with number of Rx threads */
2715 ugeth->thread_dat_rx_offset =
2716 qe_muram_alloc(numThreadsRxNumerical *
2717 sizeof(struct ucc_geth_thread_data_rx),
2718 UCC_GETH_THREAD_DATA_ALIGNMENT);
2719 if (IS_ERR_VALUE(ugeth->thread_dat_rx_offset)) {
2720 if (netif_msg_ifup(ugeth))
2721 ugeth_err
2722 ("%s: Can not allocate DPRAM memory for p_thread_data_rx.",
2723 __func__);
2724 return -ENOMEM;
2725 }
2726
2727 ugeth->p_thread_data_rx =
2728 (struct ucc_geth_thread_data_rx __iomem *) qe_muram_addr(ugeth->
2729 thread_dat_rx_offset);
2730 out_be32(&ugeth->p_rx_glbl_pram->rqptr, ugeth->thread_dat_rx_offset);
2731
2732 /* typeorlen */
2733 out_be16(&ugeth->p_rx_glbl_pram->typeorlen, ug_info->typeorlen);
2734
2735 /* rxrmonbaseptr (statistics) */
2736 if (ug_info->
2737 statisticsMode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_RX) {
2738 ugeth->rx_fw_statistics_pram_offset =
2739 qe_muram_alloc(sizeof
2740 (struct ucc_geth_rx_firmware_statistics_pram),
2741 UCC_GETH_RX_STATISTICS_ALIGNMENT);
2742 if (IS_ERR_VALUE(ugeth->rx_fw_statistics_pram_offset)) {
2743 if (netif_msg_ifup(ugeth))
2744 ugeth_err
2745 ("%s: Can not allocate DPRAM memory for"
2746 " p_rx_fw_statistics_pram.", __func__);
2747 return -ENOMEM;
2748 }
2749 ugeth->p_rx_fw_statistics_pram =
2750 (struct ucc_geth_rx_firmware_statistics_pram __iomem *)
2751 qe_muram_addr(ugeth->rx_fw_statistics_pram_offset);
2752 /* Zero out p_rx_fw_statistics_pram */
2753 memset_io((void __iomem *)ugeth->p_rx_fw_statistics_pram, 0,
2754 sizeof(struct ucc_geth_rx_firmware_statistics_pram));
2755 }
2756
2757 /* intCoalescingPtr */
2758
2759 /* Size varies with number of Rx queues */
2760 ugeth->rx_irq_coalescing_tbl_offset =
2761 qe_muram_alloc(ug_info->numQueuesRx *
2762 sizeof(struct ucc_geth_rx_interrupt_coalescing_entry)
2763 + 4, UCC_GETH_RX_INTERRUPT_COALESCING_ALIGNMENT);
2764 if (IS_ERR_VALUE(ugeth->rx_irq_coalescing_tbl_offset)) {
2765 if (netif_msg_ifup(ugeth))
2766 ugeth_err
2767 ("%s: Can not allocate DPRAM memory for"
2768 " p_rx_irq_coalescing_tbl.", __func__);
2769 return -ENOMEM;
2770 }
2771
2772 ugeth->p_rx_irq_coalescing_tbl =
2773 (struct ucc_geth_rx_interrupt_coalescing_table __iomem *)
2774 qe_muram_addr(ugeth->rx_irq_coalescing_tbl_offset);
2775 out_be32(&ugeth->p_rx_glbl_pram->intcoalescingptr,
2776 ugeth->rx_irq_coalescing_tbl_offset);
2777
2778 /* Fill interrupt coalescing table */
2779 for (i = 0; i < ug_info->numQueuesRx; i++) {
2780 out_be32(&ugeth->p_rx_irq_coalescing_tbl->coalescingentry[i].
2781 interruptcoalescingmaxvalue,
2782 ug_info->interruptcoalescingmaxvalue[i]);
2783 out_be32(&ugeth->p_rx_irq_coalescing_tbl->coalescingentry[i].
2784 interruptcoalescingcounter,
2785 ug_info->interruptcoalescingmaxvalue[i]);
2786 }
2787
2788 /* MRBLR */
2789 init_max_rx_buff_len(uf_info->max_rx_buf_length,
2790 &ugeth->p_rx_glbl_pram->mrblr);
2791 /* MFLR */
2792 out_be16(&ugeth->p_rx_glbl_pram->mflr, ug_info->maxFrameLength);
2793 /* MINFLR */
2794 init_min_frame_len(ug_info->minFrameLength,
2795 &ugeth->p_rx_glbl_pram->minflr,
2796 &ugeth->p_rx_glbl_pram->mrblr);
2797 /* MAXD1 */
2798 out_be16(&ugeth->p_rx_glbl_pram->maxd1, ug_info->maxD1Length);
2799 /* MAXD2 */
2800 out_be16(&ugeth->p_rx_glbl_pram->maxd2, ug_info->maxD2Length);
2801
2802 /* l2qt */
2803 l2qt = 0;
2804 for (i = 0; i < UCC_GETH_VLAN_PRIORITY_MAX; i++)
2805 l2qt |= (ug_info->l2qt[i] << (28 - 4 * i));
2806 out_be32(&ugeth->p_rx_glbl_pram->l2qt, l2qt);
2807
2808 /* l3qt */
2809 for (j = 0; j < UCC_GETH_IP_PRIORITY_MAX; j += 8) {
2810 l3qt = 0;
2811 for (i = 0; i < 8; i++)
2812 l3qt |= (ug_info->l3qt[j + i] << (28 - 4 * i));
2813 out_be32(&ugeth->p_rx_glbl_pram->l3qt[j/8], l3qt);
2814 }
2815
2816 /* vlantype */
2817 out_be16(&ugeth->p_rx_glbl_pram->vlantype, ug_info->vlantype);
2818
2819 /* vlantci */
2820 out_be16(&ugeth->p_rx_glbl_pram->vlantci, ug_info->vlantci);
2821
2822 /* ecamptr */
2823 out_be32(&ugeth->p_rx_glbl_pram->ecamptr, ug_info->ecamptr);
2824
2825 /* RBDQPTR */
2826 /* Size varies with number of Rx queues */
2827 ugeth->rx_bd_qs_tbl_offset =
2828 qe_muram_alloc(ug_info->numQueuesRx *
2829 (sizeof(struct ucc_geth_rx_bd_queues_entry) +
2830 sizeof(struct ucc_geth_rx_prefetched_bds)),
2831 UCC_GETH_RX_BD_QUEUES_ALIGNMENT);
2832 if (IS_ERR_VALUE(ugeth->rx_bd_qs_tbl_offset)) {
2833 if (netif_msg_ifup(ugeth))
2834 ugeth_err
2835 ("%s: Can not allocate DPRAM memory for p_rx_bd_qs_tbl.",
2836 __func__);
2837 return -ENOMEM;
2838 }
2839
2840 ugeth->p_rx_bd_qs_tbl =
2841 (struct ucc_geth_rx_bd_queues_entry __iomem *) qe_muram_addr(ugeth->
2842 rx_bd_qs_tbl_offset);
2843 out_be32(&ugeth->p_rx_glbl_pram->rbdqptr, ugeth->rx_bd_qs_tbl_offset);
2844 /* Zero out p_rx_bd_qs_tbl */
2845 memset_io((void __iomem *)ugeth->p_rx_bd_qs_tbl,
2846 0,
2847 ug_info->numQueuesRx * (sizeof(struct ucc_geth_rx_bd_queues_entry) +
2848 sizeof(struct ucc_geth_rx_prefetched_bds)));
2849
2850 /* Setup the table */
2851 /* Assume BD rings are already established */
2852 for (i = 0; i < ug_info->numQueuesRx; i++) {
2853 if (ugeth->ug_info->uf_info.bd_mem_part == MEM_PART_SYSTEM) {
2854 out_be32(&ugeth->p_rx_bd_qs_tbl[i].externalbdbaseptr,
2855 (u32) virt_to_phys(ugeth->p_rx_bd_ring[i]));
2856 } else if (ugeth->ug_info->uf_info.bd_mem_part ==
2857 MEM_PART_MURAM) {
2858 out_be32(&ugeth->p_rx_bd_qs_tbl[i].externalbdbaseptr,
2859 (u32) immrbar_virt_to_phys(ugeth->
2860 p_rx_bd_ring[i]));
2861 }
2862 /* rest of fields handled by QE */
2863 }
2864
2865 /* remoder */
2866 /* Already has speed set */
2867
2868 if (ugeth->rx_extended_features)
2869 remoder |= REMODER_RX_EXTENDED_FEATURES;
2870 if (ug_info->rxExtendedFiltering)
2871 remoder |= REMODER_RX_EXTENDED_FILTERING;
2872 if (ug_info->dynamicMaxFrameLength)
2873 remoder |= REMODER_DYNAMIC_MAX_FRAME_LENGTH;
2874 if (ug_info->dynamicMinFrameLength)
2875 remoder |= REMODER_DYNAMIC_MIN_FRAME_LENGTH;
2876 remoder |=
2877 ug_info->vlanOperationTagged << REMODER_VLAN_OPERATION_TAGGED_SHIFT;
2878 remoder |=
2879 ug_info->
2880 vlanOperationNonTagged << REMODER_VLAN_OPERATION_NON_TAGGED_SHIFT;
2881 remoder |= ug_info->rxQoSMode << REMODER_RX_QOS_MODE_SHIFT;
2882 remoder |= ((ug_info->numQueuesRx - 1) << REMODER_NUM_OF_QUEUES_SHIFT);
2883 if (ug_info->ipCheckSumCheck)
2884 remoder |= REMODER_IP_CHECKSUM_CHECK;
2885 if (ug_info->ipAddressAlignment)
2886 remoder |= REMODER_IP_ADDRESS_ALIGNMENT;
2887 out_be32(&ugeth->p_rx_glbl_pram->remoder, remoder);
2888
2889 /* Note that this function must be called */
2890 /* ONLY AFTER p_tx_fw_statistics_pram */
2891 /* andp_UccGethRxFirmwareStatisticsPram are allocated ! */
2892 init_firmware_statistics_gathering_mode((ug_info->
2893 statisticsMode &
2894 UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_TX),
2895 (ug_info->statisticsMode &
2896 UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_RX),
2897 &ugeth->p_tx_glbl_pram->txrmonbaseptr,
2898 ugeth->tx_fw_statistics_pram_offset,
2899 &ugeth->p_rx_glbl_pram->rxrmonbaseptr,
2900 ugeth->rx_fw_statistics_pram_offset,
2901 &ugeth->p_tx_glbl_pram->temoder,
2902 &ugeth->p_rx_glbl_pram->remoder);
2903
2904 /* function code register */
2905 out_8(&ugeth->p_rx_glbl_pram->rstate, function_code);
2906
2907 /* initialize extended filtering */
2908 if (ug_info->rxExtendedFiltering) {
2909 if (!ug_info->extendedFilteringChainPointer) {
2910 if (netif_msg_ifup(ugeth))
2911 ugeth_err("%s: Null Extended Filtering Chain Pointer.",
2912 __func__);
2913 return -EINVAL;
2914 }
2915
2916 /* Allocate memory for extended filtering Mode Global
2917 Parameters */
2918 ugeth->exf_glbl_param_offset =
2919 qe_muram_alloc(sizeof(struct ucc_geth_exf_global_pram),
2920 UCC_GETH_RX_EXTENDED_FILTERING_GLOBAL_PARAMETERS_ALIGNMENT);
2921 if (IS_ERR_VALUE(ugeth->exf_glbl_param_offset)) {
2922 if (netif_msg_ifup(ugeth))
2923 ugeth_err
2924 ("%s: Can not allocate DPRAM memory for"
2925 " p_exf_glbl_param.", __func__);
2926 return -ENOMEM;
2927 }
2928
2929 ugeth->p_exf_glbl_param =
2930 (struct ucc_geth_exf_global_pram __iomem *) qe_muram_addr(ugeth->
2931 exf_glbl_param_offset);
2932 out_be32(&ugeth->p_rx_glbl_pram->exfGlobalParam,
2933 ugeth->exf_glbl_param_offset);
2934 out_be32(&ugeth->p_exf_glbl_param->l2pcdptr,
2935 (u32) ug_info->extendedFilteringChainPointer);
2936
2937 } else { /* initialize 82xx style address filtering */
2938
2939 /* Init individual address recognition registers to disabled */
2940
2941 for (j = 0; j < NUM_OF_PADDRS; j++)
2942 ugeth_82xx_filtering_clear_addr_in_paddr(ugeth, (u8) j);
2943
2944 p_82xx_addr_filt =
2945 (struct ucc_geth_82xx_address_filtering_pram __iomem *) ugeth->
2946 p_rx_glbl_pram->addressfiltering;
2947
2948 ugeth_82xx_filtering_clear_all_addr_in_hash(ugeth,
2949 ENET_ADDR_TYPE_GROUP);
2950 ugeth_82xx_filtering_clear_all_addr_in_hash(ugeth,
2951 ENET_ADDR_TYPE_INDIVIDUAL);
2952 }
2953
2954 /*
2955 * Initialize UCC at QE level
2956 */
2957
2958 command = QE_INIT_TX_RX;
2959
2960 /* Allocate shadow InitEnet command parameter structure.
2961 * This is needed because after the InitEnet command is executed,
2962 * the structure in DPRAM is released, because DPRAM is a premium
2963 * resource.
2964 * This shadow structure keeps a copy of what was done so that the
2965 * allocated resources can be released when the channel is freed.
2966 */
2967 if (!(ugeth->p_init_enet_param_shadow =
2968 kmalloc(sizeof(struct ucc_geth_init_pram), GFP_KERNEL))) {
2969 if (netif_msg_ifup(ugeth))
2970 ugeth_err
2971 ("%s: Can not allocate memory for"
2972 " p_UccInitEnetParamShadows.", __func__);
2973 return -ENOMEM;
2974 }
2975 /* Zero out *p_init_enet_param_shadow */
2976 memset((char *)ugeth->p_init_enet_param_shadow,
2977 0, sizeof(struct ucc_geth_init_pram));
2978
2979 /* Fill shadow InitEnet command parameter structure */
2980
2981 ugeth->p_init_enet_param_shadow->resinit1 =
2982 ENET_INIT_PARAM_MAGIC_RES_INIT1;
2983 ugeth->p_init_enet_param_shadow->resinit2 =
2984 ENET_INIT_PARAM_MAGIC_RES_INIT2;
2985 ugeth->p_init_enet_param_shadow->resinit3 =
2986 ENET_INIT_PARAM_MAGIC_RES_INIT3;
2987 ugeth->p_init_enet_param_shadow->resinit4 =
2988 ENET_INIT_PARAM_MAGIC_RES_INIT4;
2989 ugeth->p_init_enet_param_shadow->resinit5 =
2990 ENET_INIT_PARAM_MAGIC_RES_INIT5;
2991 ugeth->p_init_enet_param_shadow->rgftgfrxglobal |=
2992 ((u32) ug_info->numThreadsRx) << ENET_INIT_PARAM_RGF_SHIFT;
2993 ugeth->p_init_enet_param_shadow->rgftgfrxglobal |=
2994 ((u32) ug_info->numThreadsTx) << ENET_INIT_PARAM_TGF_SHIFT;
2995
2996 ugeth->p_init_enet_param_shadow->rgftgfrxglobal |=
2997 ugeth->rx_glbl_pram_offset | ug_info->riscRx;
2998 if ((ug_info->largestexternallookupkeysize !=
2999 QE_FLTR_LARGEST_EXTERNAL_TABLE_LOOKUP_KEY_SIZE_NONE) &&
3000 (ug_info->largestexternallookupkeysize !=
3001 QE_FLTR_LARGEST_EXTERNAL_TABLE_LOOKUP_KEY_SIZE_8_BYTES) &&
3002 (ug_info->largestexternallookupkeysize !=
3003 QE_FLTR_LARGEST_EXTERNAL_TABLE_LOOKUP_KEY_SIZE_16_BYTES)) {
3004 if (netif_msg_ifup(ugeth))
3005 ugeth_err("%s: Invalid largest External Lookup Key Size.",
3006 __func__);
3007 return -EINVAL;
3008 }
3009 ugeth->p_init_enet_param_shadow->largestexternallookupkeysize =
3010 ug_info->largestexternallookupkeysize;
3011 size = sizeof(struct ucc_geth_thread_rx_pram);
3012 if (ug_info->rxExtendedFiltering) {
3013 size += THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING;
3014 if (ug_info->largestexternallookupkeysize ==
3015 QE_FLTR_TABLE_LOOKUP_KEY_SIZE_8_BYTES)
3016 size +=
3017 THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING_8;
3018 if (ug_info->largestexternallookupkeysize ==
3019 QE_FLTR_TABLE_LOOKUP_KEY_SIZE_16_BYTES)
3020 size +=
3021 THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING_16;
3022 }
3023
3024 if ((ret_val = fill_init_enet_entries(ugeth, &(ugeth->
3025 p_init_enet_param_shadow->rxthread[0]),
3026 (u8) (numThreadsRxNumerical + 1)
3027 /* Rx needs one extra for terminator */
3028 , size, UCC_GETH_THREAD_RX_PRAM_ALIGNMENT,
3029 ug_info->riscRx, 1)) != 0) {
3030 if (netif_msg_ifup(ugeth))
3031 ugeth_err("%s: Can not fill p_init_enet_param_shadow.",
3032 __func__);
3033 return ret_val;
3034 }
3035
3036 ugeth->p_init_enet_param_shadow->txglobal =
3037 ugeth->tx_glbl_pram_offset | ug_info->riscTx;
3038 if ((ret_val =
3039 fill_init_enet_entries(ugeth,
3040 &(ugeth->p_init_enet_param_shadow->
3041 txthread[0]), numThreadsTxNumerical,
3042 sizeof(struct ucc_geth_thread_tx_pram),
3043 UCC_GETH_THREAD_TX_PRAM_ALIGNMENT,
3044 ug_info->riscTx, 0)) != 0) {
3045 if (netif_msg_ifup(ugeth))
3046 ugeth_err("%s: Can not fill p_init_enet_param_shadow.",
3047 __func__);
3048 return ret_val;
3049 }
3050
3051 /* Load Rx bds with buffers */
3052 for (i = 0; i < ug_info->numQueuesRx; i++) {
3053 if ((ret_val = rx_bd_buffer_set(ugeth, (u8) i)) != 0) {
3054 if (netif_msg_ifup(ugeth))
3055 ugeth_err("%s: Can not fill Rx bds with buffers.",
3056 __func__);
3057 return ret_val;
3058 }
3059 }
3060
3061 /* Allocate InitEnet command parameter structure */
3062 init_enet_pram_offset = qe_muram_alloc(sizeof(struct ucc_geth_init_pram), 4);
3063 if (IS_ERR_VALUE(init_enet_pram_offset)) {
3064 if (netif_msg_ifup(ugeth))
3065 ugeth_err
3066 ("%s: Can not allocate DPRAM memory for p_init_enet_pram.",
3067 __func__);
3068 return -ENOMEM;
3069 }
3070 p_init_enet_pram =
3071 (struct ucc_geth_init_pram __iomem *) qe_muram_addr(init_enet_pram_offset);
3072
3073 /* Copy shadow InitEnet command parameter structure into PRAM */
3074 out_8(&p_init_enet_pram->resinit1,
3075 ugeth->p_init_enet_param_shadow->resinit1);
3076 out_8(&p_init_enet_pram->resinit2,
3077 ugeth->p_init_enet_param_shadow->resinit2);
3078 out_8(&p_init_enet_pram->resinit3,
3079 ugeth->p_init_enet_param_shadow->resinit3);
3080 out_8(&p_init_enet_pram->resinit4,
3081 ugeth->p_init_enet_param_shadow->resinit4);
3082 out_be16(&p_init_enet_pram->resinit5,
3083 ugeth->p_init_enet_param_shadow->resinit5);
3084 out_8(&p_init_enet_pram->largestexternallookupkeysize,
3085 ugeth->p_init_enet_param_shadow->largestexternallookupkeysize);
3086 out_be32(&p_init_enet_pram->rgftgfrxglobal,
3087 ugeth->p_init_enet_param_shadow->rgftgfrxglobal);
3088 for (i = 0; i < ENET_INIT_PARAM_MAX_ENTRIES_RX; i++)
3089 out_be32(&p_init_enet_pram->rxthread[i],
3090 ugeth->p_init_enet_param_shadow->rxthread[i]);
3091 out_be32(&p_init_enet_pram->txglobal,
3092 ugeth->p_init_enet_param_shadow->txglobal);
3093 for (i = 0; i < ENET_INIT_PARAM_MAX_ENTRIES_TX; i++)
3094 out_be32(&p_init_enet_pram->txthread[i],
3095 ugeth->p_init_enet_param_shadow->txthread[i]);
3096
3097 /* Issue QE command */
3098 cecr_subblock =
3099 ucc_fast_get_qe_cr_subblock(ugeth->ug_info->uf_info.ucc_num);
3100 qe_issue_cmd(command, cecr_subblock, QE_CR_PROTOCOL_ETHERNET,
3101 init_enet_pram_offset);
3102
3103 /* Free InitEnet command parameter */
3104 qe_muram_free(init_enet_pram_offset);
3105
3106 return 0;
3107 }
3108
3109 /* This is called by the kernel when a frame is ready for transmission. */
3110 /* It is pointed to by the dev->hard_start_xmit function pointer */
3111 static int ucc_geth_start_xmit(struct sk_buff *skb, struct net_device *dev)
3112 {
3113 struct ucc_geth_private *ugeth = netdev_priv(dev);
3114 #ifdef CONFIG_UGETH_TX_ON_DEMAND
3115 struct ucc_fast_private *uccf;
3116 #endif
3117 u8 __iomem *bd; /* BD pointer */
3118 u32 bd_status;
3119 u8 txQ = 0;
3120 unsigned long flags;
3121
3122 ugeth_vdbg("%s: IN", __func__);
3123
3124 spin_lock_irqsave(&ugeth->lock, flags);
3125
3126 dev->stats.tx_bytes += skb->len;
3127
3128 /* Start from the next BD that should be filled */
3129 bd = ugeth->txBd[txQ];
3130 bd_status = in_be32((u32 __iomem *)bd);
3131 /* Save the skb pointer so we can free it later */
3132 ugeth->tx_skbuff[txQ][ugeth->skb_curtx[txQ]] = skb;
3133
3134 /* Update the current skb pointer (wrapping if this was the last) */
3135 ugeth->skb_curtx[txQ] =
3136 (ugeth->skb_curtx[txQ] +
3137 1) & TX_RING_MOD_MASK(ugeth->ug_info->bdRingLenTx[txQ]);
3138
3139 /* set up the buffer descriptor */
3140 out_be32(&((struct qe_bd __iomem *)bd)->buf,
3141 dma_map_single(ugeth->dev, skb->data,
3142 skb->len, DMA_TO_DEVICE));
3143
3144 /* printk(KERN_DEBUG"skb->data is 0x%x\n",skb->data); */
3145
3146 bd_status = (bd_status & T_W) | T_R | T_I | T_L | skb->len;
3147
3148 /* set bd status and length */
3149 out_be32((u32 __iomem *)bd, bd_status);
3150
3151 /* Move to next BD in the ring */
3152 if (!(bd_status & T_W))
3153 bd += sizeof(struct qe_bd);
3154 else
3155 bd = ugeth->p_tx_bd_ring[txQ];
3156
3157 /* If the next BD still needs to be cleaned up, then the bds
3158 are full. We need to tell the kernel to stop sending us stuff. */
3159 if (bd == ugeth->confBd[txQ]) {
3160 if (!netif_queue_stopped(dev))
3161 netif_stop_queue(dev);
3162 }
3163
3164 ugeth->txBd[txQ] = bd;
3165
3166 skb_tx_timestamp(skb);
3167
3168 if (ugeth->p_scheduler) {
3169 ugeth->cpucount[txQ]++;
3170 /* Indicate to QE that there are more Tx bds ready for
3171 transmission */
3172 /* This is done by writing a running counter of the bd
3173 count to the scheduler PRAM. */
3174 out_be16(ugeth->p_cpucount[txQ], ugeth->cpucount[txQ]);
3175 }
3176
3177 #ifdef CONFIG_UGETH_TX_ON_DEMAND
3178 uccf = ugeth->uccf;
3179 out_be16(uccf->p_utodr, UCC_FAST_TOD);
3180 #endif
3181 spin_unlock_irqrestore(&ugeth->lock, flags);
3182
3183 return NETDEV_TX_OK;
3184 }
3185
3186 static int ucc_geth_rx(struct ucc_geth_private *ugeth, u8 rxQ, int rx_work_limit)
3187 {
3188 struct sk_buff *skb;
3189 u8 __iomem *bd;
3190 u16 length, howmany = 0;
3191 u32 bd_status;
3192 u8 *bdBuffer;
3193 struct net_device *dev;
3194
3195 ugeth_vdbg("%s: IN", __func__);
3196
3197 dev = ugeth->ndev;
3198
3199 /* collect received buffers */
3200 bd = ugeth->rxBd[rxQ];
3201
3202 bd_status = in_be32((u32 __iomem *)bd);
3203
3204 /* while there are received buffers and BD is full (~R_E) */
3205 while (!((bd_status & (R_E)) || (--rx_work_limit < 0))) {
3206 bdBuffer = (u8 *) in_be32(&((struct qe_bd __iomem *)bd)->buf);
3207 length = (u16) ((bd_status & BD_LENGTH_MASK) - 4);
3208 skb = ugeth->rx_skbuff[rxQ][ugeth->skb_currx[rxQ]];
3209
3210 /* determine whether buffer is first, last, first and last
3211 (single buffer frame) or middle (not first and not last) */
3212 if (!skb ||
3213 (!(bd_status & (R_F | R_L))) ||
3214 (bd_status & R_ERRORS_FATAL)) {
3215 if (netif_msg_rx_err(ugeth))
3216 ugeth_err("%s, %d: ERROR!!! skb - 0x%08x",
3217 __func__, __LINE__, (u32) skb);
3218 if (skb) {
3219 skb->data = skb->head + NET_SKB_PAD;
3220 skb->len = 0;
3221 skb_reset_tail_pointer(skb);
3222 __skb_queue_head(&ugeth->rx_recycle, skb);
3223 }
3224
3225 ugeth->rx_skbuff[rxQ][ugeth->skb_currx[rxQ]] = NULL;
3226 dev->stats.rx_dropped++;
3227 } else {
3228 dev->stats.rx_packets++;
3229 howmany++;
3230
3231 /* Prep the skb for the packet */
3232 skb_put(skb, length);
3233
3234 /* Tell the skb what kind of packet this is */
3235 skb->protocol = eth_type_trans(skb, ugeth->ndev);
3236
3237 dev->stats.rx_bytes += length;
3238 /* Send the packet up the stack */
3239 netif_receive_skb(skb);
3240 }
3241
3242 skb = get_new_skb(ugeth, bd);
3243 if (!skb) {
3244 if (netif_msg_rx_err(ugeth))
3245 ugeth_warn("%s: No Rx Data Buffer", __func__);
3246 dev->stats.rx_dropped++;
3247 break;
3248 }
3249
3250 ugeth->rx_skbuff[rxQ][ugeth->skb_currx[rxQ]] = skb;
3251
3252 /* update to point at the next skb */
3253 ugeth->skb_currx[rxQ] =
3254 (ugeth->skb_currx[rxQ] +
3255 1) & RX_RING_MOD_MASK(ugeth->ug_info->bdRingLenRx[rxQ]);
3256
3257 if (bd_status & R_W)
3258 bd = ugeth->p_rx_bd_ring[rxQ];
3259 else
3260 bd += sizeof(struct qe_bd);
3261
3262 bd_status = in_be32((u32 __iomem *)bd);
3263 }
3264
3265 ugeth->rxBd[rxQ] = bd;
3266 return howmany;
3267 }
3268
3269 static int ucc_geth_tx(struct net_device *dev, u8 txQ)
3270 {
3271 /* Start from the next BD that should be filled */
3272 struct ucc_geth_private *ugeth = netdev_priv(dev);
3273 u8 __iomem *bd; /* BD pointer */
3274 u32 bd_status;
3275
3276 bd = ugeth->confBd[txQ];
3277 bd_status = in_be32((u32 __iomem *)bd);
3278
3279 /* Normal processing. */
3280 while ((bd_status & T_R) == 0) {
3281 struct sk_buff *skb;
3282
3283 /* BD contains already transmitted buffer. */
3284 /* Handle the transmitted buffer and release */
3285 /* the BD to be used with the current frame */
3286
3287 skb = ugeth->tx_skbuff[txQ][ugeth->skb_dirtytx[txQ]];
3288 if (!skb)
3289 break;
3290
3291 dev->stats.tx_packets++;
3292
3293 if (skb_queue_len(&ugeth->rx_recycle) < RX_BD_RING_LEN &&
3294 skb_recycle_check(skb,
3295 ugeth->ug_info->uf_info.max_rx_buf_length +
3296 UCC_GETH_RX_DATA_BUF_ALIGNMENT))
3297 __skb_queue_head(&ugeth->rx_recycle, skb);
3298 else
3299 dev_kfree_skb(skb);
3300
3301 ugeth->tx_skbuff[txQ][ugeth->skb_dirtytx[txQ]] = NULL;
3302 ugeth->skb_dirtytx[txQ] =
3303 (ugeth->skb_dirtytx[txQ] +
3304 1) & TX_RING_MOD_MASK(ugeth->ug_info->bdRingLenTx[txQ]);
3305
3306 /* We freed a buffer, so now we can restart transmission */
3307 if (netif_queue_stopped(dev))
3308 netif_wake_queue(dev);
3309
3310 /* Advance the confirmation BD pointer */
3311 if (!(bd_status & T_W))
3312 bd += sizeof(struct qe_bd);
3313 else
3314 bd = ugeth->p_tx_bd_ring[txQ];
3315 bd_status = in_be32((u32 __iomem *)bd);
3316 }
3317 ugeth->confBd[txQ] = bd;
3318 return 0;
3319 }
3320
3321 static int ucc_geth_poll(struct napi_struct *napi, int budget)
3322 {
3323 struct ucc_geth_private *ugeth = container_of(napi, struct ucc_geth_private, napi);
3324 struct ucc_geth_info *ug_info;
3325 int howmany, i;
3326
3327 ug_info = ugeth->ug_info;
3328
3329 /* Tx event processing */
3330 spin_lock(&ugeth->lock);
3331 for (i = 0; i < ug_info->numQueuesTx; i++)
3332 ucc_geth_tx(ugeth->ndev, i);
3333 spin_unlock(&ugeth->lock);
3334
3335 howmany = 0;
3336 for (i = 0; i < ug_info->numQueuesRx; i++)
3337 howmany += ucc_geth_rx(ugeth, i, budget - howmany);
3338
3339 if (howmany < budget) {
3340 napi_complete(napi);
3341 setbits32(ugeth->uccf->p_uccm, UCCE_RX_EVENTS | UCCE_TX_EVENTS);
3342 }
3343
3344 return howmany;
3345 }
3346
3347 static irqreturn_t ucc_geth_irq_handler(int irq, void *info)
3348 {
3349 struct net_device *dev = info;
3350 struct ucc_geth_private *ugeth = netdev_priv(dev);
3351 struct ucc_fast_private *uccf;
3352 struct ucc_geth_info *ug_info;
3353 register u32 ucce;
3354 register u32 uccm;
3355
3356 ugeth_vdbg("%s: IN", __func__);
3357
3358 uccf = ugeth->uccf;
3359 ug_info = ugeth->ug_info;
3360
3361 /* read and clear events */
3362 ucce = (u32) in_be32(uccf->p_ucce);
3363 uccm = (u32) in_be32(uccf->p_uccm);
3364 ucce &= uccm;
3365 out_be32(uccf->p_ucce, ucce);
3366
3367 /* check for receive events that require processing */
3368 if (ucce & (UCCE_RX_EVENTS | UCCE_TX_EVENTS)) {
3369 if (napi_schedule_prep(&ugeth->napi)) {
3370 uccm &= ~(UCCE_RX_EVENTS | UCCE_TX_EVENTS);
3371 out_be32(uccf->p_uccm, uccm);
3372 __napi_schedule(&ugeth->napi);
3373 }
3374 }
3375
3376 /* Errors and other events */
3377 if (ucce & UCCE_OTHER) {
3378 if (ucce & UCC_GETH_UCCE_BSY)
3379 dev->stats.rx_errors++;
3380 if (ucce & UCC_GETH_UCCE_TXE)
3381 dev->stats.tx_errors++;
3382 }
3383
3384 return IRQ_HANDLED;
3385 }
3386
3387 #ifdef CONFIG_NET_POLL_CONTROLLER
3388 /*
3389 * Polling 'interrupt' - used by things like netconsole to send skbs
3390 * without having to re-enable interrupts. It's not called while
3391 * the interrupt routine is executing.
3392 */
3393 static void ucc_netpoll(struct net_device *dev)
3394 {
3395 struct ucc_geth_private *ugeth = netdev_priv(dev);
3396 int irq = ugeth->ug_info->uf_info.irq;
3397
3398 disable_irq(irq);
3399 ucc_geth_irq_handler(irq, dev);
3400 enable_irq(irq);
3401 }
3402 #endif /* CONFIG_NET_POLL_CONTROLLER */
3403
3404 static int ucc_geth_set_mac_addr(struct net_device *dev, void *p)
3405 {
3406 struct ucc_geth_private *ugeth = netdev_priv(dev);
3407 struct sockaddr *addr = p;
3408
3409 if (!is_valid_ether_addr(addr->sa_data))
3410 return -EADDRNOTAVAIL;
3411
3412 memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
3413
3414 /*
3415 * If device is not running, we will set mac addr register
3416 * when opening the device.
3417 */
3418 if (!netif_running(dev))
3419 return 0;
3420
3421 spin_lock_irq(&ugeth->lock);
3422 init_mac_station_addr_regs(dev->dev_addr[0],
3423 dev->dev_addr[1],
3424 dev->dev_addr[2],
3425 dev->dev_addr[3],
3426 dev->dev_addr[4],
3427 dev->dev_addr[5],
3428 &ugeth->ug_regs->macstnaddr1,
3429 &ugeth->ug_regs->macstnaddr2);
3430 spin_unlock_irq(&ugeth->lock);
3431
3432 return 0;
3433 }
3434
3435 static int ucc_geth_init_mac(struct ucc_geth_private *ugeth)
3436 {
3437 struct net_device *dev = ugeth->ndev;
3438 int err;
3439
3440 err = ucc_struct_init(ugeth);
3441 if (err) {
3442 if (netif_msg_ifup(ugeth))
3443 ugeth_err("%s: Cannot configure internal struct, "
3444 "aborting.", dev->name);
3445 goto err;
3446 }
3447
3448 err = ucc_geth_startup(ugeth);
3449 if (err) {
3450 if (netif_msg_ifup(ugeth))
3451 ugeth_err("%s: Cannot configure net device, aborting.",
3452 dev->name);
3453 goto err;
3454 }
3455
3456 err = adjust_enet_interface(ugeth);
3457 if (err) {
3458 if (netif_msg_ifup(ugeth))
3459 ugeth_err("%s: Cannot configure net device, aborting.",
3460 dev->name);
3461 goto err;
3462 }
3463
3464 /* Set MACSTNADDR1, MACSTNADDR2 */
3465 /* For more details see the hardware spec. */
3466 init_mac_station_addr_regs(dev->dev_addr[0],
3467 dev->dev_addr[1],
3468 dev->dev_addr[2],
3469 dev->dev_addr[3],
3470 dev->dev_addr[4],
3471 dev->dev_addr[5],
3472 &ugeth->ug_regs->macstnaddr1,
3473 &ugeth->ug_regs->macstnaddr2);
3474
3475 err = ugeth_enable(ugeth, COMM_DIR_RX_AND_TX);
3476 if (err) {
3477 if (netif_msg_ifup(ugeth))
3478 ugeth_err("%s: Cannot enable net device, aborting.", dev->name);
3479 goto err;
3480 }
3481
3482 return 0;
3483 err:
3484 ucc_geth_stop(ugeth);
3485 return err;
3486 }
3487
3488 /* Called when something needs to use the ethernet device */
3489 /* Returns 0 for success. */
3490 static int ucc_geth_open(struct net_device *dev)
3491 {
3492 struct ucc_geth_private *ugeth = netdev_priv(dev);
3493 int err;
3494
3495 ugeth_vdbg("%s: IN", __func__);
3496
3497 /* Test station address */
3498 if (dev->dev_addr[0] & ENET_GROUP_ADDR) {
3499 if (netif_msg_ifup(ugeth))
3500 ugeth_err("%s: Multicast address used for station "
3501 "address - is this what you wanted?",
3502 __func__);
3503 return -EINVAL;
3504 }
3505
3506 err = init_phy(dev);
3507 if (err) {
3508 if (netif_msg_ifup(ugeth))
3509 ugeth_err("%s: Cannot initialize PHY, aborting.",
3510 dev->name);
3511 return err;
3512 }
3513
3514 err = ucc_geth_init_mac(ugeth);
3515 if (err) {
3516 if (netif_msg_ifup(ugeth))
3517 ugeth_err("%s: Cannot initialize MAC, aborting.",
3518 dev->name);
3519 goto err;
3520 }
3521
3522 err = request_irq(ugeth->ug_info->uf_info.irq, ucc_geth_irq_handler,
3523 0, "UCC Geth", dev);
3524 if (err) {
3525 if (netif_msg_ifup(ugeth))
3526 ugeth_err("%s: Cannot get IRQ for net device, aborting.",
3527 dev->name);
3528 goto err;
3529 }
3530
3531 phy_start(ugeth->phydev);
3532 napi_enable(&ugeth->napi);
3533 netif_start_queue(dev);
3534
3535 device_set_wakeup_capable(&dev->dev,
3536 qe_alive_during_sleep() || ugeth->phydev->irq);
3537 device_set_wakeup_enable(&dev->dev, ugeth->wol_en);
3538
3539 return err;
3540
3541 err:
3542 ucc_geth_stop(ugeth);
3543 return err;
3544 }
3545
3546 /* Stops the kernel queue, and halts the controller */
3547 static int ucc_geth_close(struct net_device *dev)
3548 {
3549 struct ucc_geth_private *ugeth = netdev_priv(dev);
3550
3551 ugeth_vdbg("%s: IN", __func__);
3552
3553 napi_disable(&ugeth->napi);
3554
3555 cancel_work_sync(&ugeth->timeout_work);
3556 ucc_geth_stop(ugeth);
3557 phy_disconnect(ugeth->phydev);
3558 ugeth->phydev = NULL;
3559
3560 free_irq(ugeth->ug_info->uf_info.irq, ugeth->ndev);
3561
3562 netif_stop_queue(dev);
3563
3564 return 0;
3565 }
3566
3567 /* Reopen device. This will reset the MAC and PHY. */
3568 static void ucc_geth_timeout_work(struct work_struct *work)
3569 {
3570 struct ucc_geth_private *ugeth;
3571 struct net_device *dev;
3572
3573 ugeth = container_of(work, struct ucc_geth_private, timeout_work);
3574 dev = ugeth->ndev;
3575
3576 ugeth_vdbg("%s: IN", __func__);
3577
3578 dev->stats.tx_errors++;
3579
3580 ugeth_dump_regs(ugeth);
3581
3582 if (dev->flags & IFF_UP) {
3583 /*
3584 * Must reset MAC *and* PHY. This is done by reopening
3585 * the device.
3586 */
3587 netif_tx_stop_all_queues(dev);
3588 ucc_geth_stop(ugeth);
3589 ucc_geth_init_mac(ugeth);
3590 /* Must start PHY here */
3591 phy_start(ugeth->phydev);
3592 netif_tx_start_all_queues(dev);
3593 }
3594
3595 netif_tx_schedule_all(dev);
3596 }
3597
3598 /*
3599 * ucc_geth_timeout gets called when a packet has not been
3600 * transmitted after a set amount of time.
3601 */
3602 static void ucc_geth_timeout(struct net_device *dev)
3603 {
3604 struct ucc_geth_private *ugeth = netdev_priv(dev);
3605
3606 schedule_work(&ugeth->timeout_work);
3607 }
3608
3609
3610 #ifdef CONFIG_PM
3611
3612 static int ucc_geth_suspend(struct platform_device *ofdev, pm_message_t state)
3613 {
3614 struct net_device *ndev = dev_get_drvdata(&ofdev->dev);
3615 struct ucc_geth_private *ugeth = netdev_priv(ndev);
3616
3617 if (!netif_running(ndev))
3618 return 0;
3619
3620 netif_device_detach(ndev);
3621 napi_disable(&ugeth->napi);
3622
3623 /*
3624 * Disable the controller, otherwise we'll wakeup on any network
3625 * activity.
3626 */
3627 ugeth_disable(ugeth, COMM_DIR_RX_AND_TX);
3628
3629 if (ugeth->wol_en & WAKE_MAGIC) {
3630 setbits32(ugeth->uccf->p_uccm, UCC_GETH_UCCE_MPD);
3631 setbits32(&ugeth->ug_regs->maccfg2, MACCFG2_MPE);
3632 ucc_fast_enable(ugeth->uccf, COMM_DIR_RX_AND_TX);
3633 } else if (!(ugeth->wol_en & WAKE_PHY)) {
3634 phy_stop(ugeth->phydev);
3635 }
3636
3637 return 0;
3638 }
3639
3640 static int ucc_geth_resume(struct platform_device *ofdev)
3641 {
3642 struct net_device *ndev = dev_get_drvdata(&ofdev->dev);
3643 struct ucc_geth_private *ugeth = netdev_priv(ndev);
3644 int err;
3645
3646 if (!netif_running(ndev))
3647 return 0;
3648
3649 if (qe_alive_during_sleep()) {
3650 if (ugeth->wol_en & WAKE_MAGIC) {
3651 ucc_fast_disable(ugeth->uccf, COMM_DIR_RX_AND_TX);
3652 clrbits32(&ugeth->ug_regs->maccfg2, MACCFG2_MPE);
3653 clrbits32(ugeth->uccf->p_uccm, UCC_GETH_UCCE_MPD);
3654 }
3655 ugeth_enable(ugeth, COMM_DIR_RX_AND_TX);
3656 } else {
3657 /*
3658 * Full reinitialization is required if QE shuts down
3659 * during sleep.
3660 */
3661 ucc_geth_memclean(ugeth);
3662
3663 err = ucc_geth_init_mac(ugeth);
3664 if (err) {
3665 ugeth_err("%s: Cannot initialize MAC, aborting.",
3666 ndev->name);
3667 return err;
3668 }
3669 }
3670
3671 ugeth->oldlink = 0;
3672 ugeth->oldspeed = 0;
3673 ugeth->oldduplex = -1;
3674
3675 phy_stop(ugeth->phydev);
3676 phy_start(ugeth->phydev);
3677
3678 napi_enable(&ugeth->napi);
3679 netif_device_attach(ndev);
3680
3681 return 0;
3682 }
3683
3684 #else
3685 #define ucc_geth_suspend NULL
3686 #define ucc_geth_resume NULL
3687 #endif
3688
3689 static phy_interface_t to_phy_interface(const char *phy_connection_type)
3690 {
3691 if (strcasecmp(phy_connection_type, "mii") == 0)
3692 return PHY_INTERFACE_MODE_MII;
3693 if (strcasecmp(phy_connection_type, "gmii") == 0)
3694 return PHY_INTERFACE_MODE_GMII;
3695 if (strcasecmp(phy_connection_type, "tbi") == 0)
3696 return PHY_INTERFACE_MODE_TBI;
3697 if (strcasecmp(phy_connection_type, "rmii") == 0)
3698 return PHY_INTERFACE_MODE_RMII;
3699 if (strcasecmp(phy_connection_type, "rgmii") == 0)
3700 return PHY_INTERFACE_MODE_RGMII;
3701 if (strcasecmp(phy_connection_type, "rgmii-id") == 0)
3702 return PHY_INTERFACE_MODE_RGMII_ID;
3703 if (strcasecmp(phy_connection_type, "rgmii-txid") == 0)
3704 return PHY_INTERFACE_MODE_RGMII_TXID;
3705 if (strcasecmp(phy_connection_type, "rgmii-rxid") == 0)
3706 return PHY_INTERFACE_MODE_RGMII_RXID;
3707 if (strcasecmp(phy_connection_type, "rtbi") == 0)
3708 return PHY_INTERFACE_MODE_RTBI;
3709 if (strcasecmp(phy_connection_type, "sgmii") == 0)
3710 return PHY_INTERFACE_MODE_SGMII;
3711
3712 return PHY_INTERFACE_MODE_MII;
3713 }
3714
3715 static int ucc_geth_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
3716 {
3717 struct ucc_geth_private *ugeth = netdev_priv(dev);
3718
3719 if (!netif_running(dev))
3720 return -EINVAL;
3721
3722 if (!ugeth->phydev)
3723 return -ENODEV;
3724
3725 return phy_mii_ioctl(ugeth->phydev, rq, cmd);
3726 }
3727
3728 static const struct net_device_ops ucc_geth_netdev_ops = {
3729 .ndo_open = ucc_geth_open,
3730 .ndo_stop = ucc_geth_close,
3731 .ndo_start_xmit = ucc_geth_start_xmit,
3732 .ndo_validate_addr = eth_validate_addr,
3733 .ndo_set_mac_address = ucc_geth_set_mac_addr,
3734 .ndo_change_mtu = eth_change_mtu,
3735 .ndo_set_rx_mode = ucc_geth_set_multi,
3736 .ndo_tx_timeout = ucc_geth_timeout,
3737 .ndo_do_ioctl = ucc_geth_ioctl,
3738 #ifdef CONFIG_NET_POLL_CONTROLLER
3739 .ndo_poll_controller = ucc_netpoll,
3740 #endif
3741 };
3742
3743 static int ucc_geth_probe(struct platform_device* ofdev)
3744 {
3745 struct device *device = &ofdev->dev;
3746 struct device_node *np = ofdev->dev.of_node;
3747 struct net_device *dev = NULL;
3748 struct ucc_geth_private *ugeth = NULL;
3749 struct ucc_geth_info *ug_info;
3750 struct resource res;
3751 int err, ucc_num, max_speed = 0;
3752 const unsigned int *prop;
3753 const char *sprop;
3754 const void *mac_addr;
3755 phy_interface_t phy_interface;
3756 static const int enet_to_speed[] = {
3757 SPEED_10, SPEED_10, SPEED_10,
3758 SPEED_100, SPEED_100, SPEED_100,
3759 SPEED_1000, SPEED_1000, SPEED_1000, SPEED_1000,
3760 };
3761 static const phy_interface_t enet_to_phy_interface[] = {
3762 PHY_INTERFACE_MODE_MII, PHY_INTERFACE_MODE_RMII,
3763 PHY_INTERFACE_MODE_RGMII, PHY_INTERFACE_MODE_MII,
3764 PHY_INTERFACE_MODE_RMII, PHY_INTERFACE_MODE_RGMII,
3765 PHY_INTERFACE_MODE_GMII, PHY_INTERFACE_MODE_RGMII,
3766 PHY_INTERFACE_MODE_TBI, PHY_INTERFACE_MODE_RTBI,
3767 PHY_INTERFACE_MODE_SGMII,
3768 };
3769
3770 ugeth_vdbg("%s: IN", __func__);
3771
3772 prop = of_get_property(np, "cell-index", NULL);
3773 if (!prop) {
3774 prop = of_get_property(np, "device-id", NULL);
3775 if (!prop)
3776 return -ENODEV;
3777 }
3778
3779 ucc_num = *prop - 1;
3780 if ((ucc_num < 0) || (ucc_num > 7))
3781 return -ENODEV;
3782
3783 ug_info = &ugeth_info[ucc_num];
3784 if (ug_info == NULL) {
3785 if (netif_msg_probe(&debug))
3786 ugeth_err("%s: [%d] Missing additional data!",
3787 __func__, ucc_num);
3788 return -ENODEV;
3789 }
3790
3791 ug_info->uf_info.ucc_num = ucc_num;
3792
3793 sprop = of_get_property(np, "rx-clock-name", NULL);
3794 if (sprop) {
3795 ug_info->uf_info.rx_clock = qe_clock_source(sprop);
3796 if ((ug_info->uf_info.rx_clock < QE_CLK_NONE) ||
3797 (ug_info->uf_info.rx_clock > QE_CLK24)) {
3798 printk(KERN_ERR
3799 "ucc_geth: invalid rx-clock-name property\n");
3800 return -EINVAL;
3801 }
3802 } else {
3803 prop = of_get_property(np, "rx-clock", NULL);
3804 if (!prop) {
3805 /* If both rx-clock-name and rx-clock are missing,
3806 we want to tell people to use rx-clock-name. */
3807 printk(KERN_ERR
3808 "ucc_geth: missing rx-clock-name property\n");
3809 return -EINVAL;
3810 }
3811 if ((*prop < QE_CLK_NONE) || (*prop > QE_CLK24)) {
3812 printk(KERN_ERR
3813 "ucc_geth: invalid rx-clock propperty\n");
3814 return -EINVAL;
3815 }
3816 ug_info->uf_info.rx_clock = *prop;
3817 }
3818
3819 sprop = of_get_property(np, "tx-clock-name", NULL);
3820 if (sprop) {
3821 ug_info->uf_info.tx_clock = qe_clock_source(sprop);
3822 if ((ug_info->uf_info.tx_clock < QE_CLK_NONE) ||
3823 (ug_info->uf_info.tx_clock > QE_CLK24)) {
3824 printk(KERN_ERR
3825 "ucc_geth: invalid tx-clock-name property\n");
3826 return -EINVAL;
3827 }
3828 } else {
3829 prop = of_get_property(np, "tx-clock", NULL);
3830 if (!prop) {
3831 printk(KERN_ERR
3832 "ucc_geth: missing tx-clock-name property\n");
3833 return -EINVAL;
3834 }
3835 if ((*prop < QE_CLK_NONE) || (*prop > QE_CLK24)) {
3836 printk(KERN_ERR
3837 "ucc_geth: invalid tx-clock property\n");
3838 return -EINVAL;
3839 }
3840 ug_info->uf_info.tx_clock = *prop;
3841 }
3842
3843 err = of_address_to_resource(np, 0, &res);
3844 if (err)
3845 return -EINVAL;
3846
3847 ug_info->uf_info.regs = res.start;
3848 ug_info->uf_info.irq = irq_of_parse_and_map(np, 0);
3849
3850 ug_info->phy_node = of_parse_phandle(np, "phy-handle", 0);
3851
3852 /* Find the TBI PHY node. If it's not there, we don't support SGMII */
3853 ug_info->tbi_node = of_parse_phandle(np, "tbi-handle", 0);
3854
3855 /* get the phy interface type, or default to MII */
3856 prop = of_get_property(np, "phy-connection-type", NULL);
3857 if (!prop) {
3858 /* handle interface property present in old trees */
3859 prop = of_get_property(ug_info->phy_node, "interface", NULL);
3860 if (prop != NULL) {
3861 phy_interface = enet_to_phy_interface[*prop];
3862 max_speed = enet_to_speed[*prop];
3863 } else
3864 phy_interface = PHY_INTERFACE_MODE_MII;
3865 } else {
3866 phy_interface = to_phy_interface((const char *)prop);
3867 }
3868
3869 /* get speed, or derive from PHY interface */
3870 if (max_speed == 0)
3871 switch (phy_interface) {
3872 case PHY_INTERFACE_MODE_GMII:
3873 case PHY_INTERFACE_MODE_RGMII:
3874 case PHY_INTERFACE_MODE_RGMII_ID:
3875 case PHY_INTERFACE_MODE_RGMII_RXID:
3876 case PHY_INTERFACE_MODE_RGMII_TXID:
3877 case PHY_INTERFACE_MODE_TBI:
3878 case PHY_INTERFACE_MODE_RTBI:
3879 case PHY_INTERFACE_MODE_SGMII:
3880 max_speed = SPEED_1000;
3881 break;
3882 default:
3883 max_speed = SPEED_100;
3884 break;
3885 }
3886
3887 if (max_speed == SPEED_1000) {
3888 /* configure muram FIFOs for gigabit operation */
3889 ug_info->uf_info.urfs = UCC_GETH_URFS_GIGA_INIT;
3890 ug_info->uf_info.urfet = UCC_GETH_URFET_GIGA_INIT;
3891 ug_info->uf_info.urfset = UCC_GETH_URFSET_GIGA_INIT;
3892 ug_info->uf_info.utfs = UCC_GETH_UTFS_GIGA_INIT;
3893 ug_info->uf_info.utfet = UCC_GETH_UTFET_GIGA_INIT;
3894 ug_info->uf_info.utftt = UCC_GETH_UTFTT_GIGA_INIT;
3895 ug_info->numThreadsTx = UCC_GETH_NUM_OF_THREADS_4;
3896
3897 /* If QE's snum number is 46 which means we need to support
3898 * 4 UECs at 1000Base-T simultaneously, we need to allocate
3899 * more Threads to Rx.
3900 */
3901 if (qe_get_num_of_snums() == 46)
3902 ug_info->numThreadsRx = UCC_GETH_NUM_OF_THREADS_6;
3903 else
3904 ug_info->numThreadsRx = UCC_GETH_NUM_OF_THREADS_4;
3905 }
3906
3907 if (netif_msg_probe(&debug))
3908 printk(KERN_INFO "ucc_geth: UCC%1d at 0x%8x (irq = %d)\n",
3909 ug_info->uf_info.ucc_num + 1, ug_info->uf_info.regs,
3910 ug_info->uf_info.irq);
3911
3912 /* Create an ethernet device instance */
3913 dev = alloc_etherdev(sizeof(*ugeth));
3914
3915 if (dev == NULL)
3916 return -ENOMEM;
3917
3918 ugeth = netdev_priv(dev);
3919 spin_lock_init(&ugeth->lock);
3920
3921 /* Create CQs for hash tables */
3922 INIT_LIST_HEAD(&ugeth->group_hash_q);
3923 INIT_LIST_HEAD(&ugeth->ind_hash_q);
3924
3925 dev_set_drvdata(device, dev);
3926
3927 /* Set the dev->base_addr to the gfar reg region */
3928 dev->base_addr = (unsigned long)(ug_info->uf_info.regs);
3929
3930 SET_NETDEV_DEV(dev, device);
3931
3932 /* Fill in the dev structure */
3933 uec_set_ethtool_ops(dev);
3934 dev->netdev_ops = &ucc_geth_netdev_ops;
3935 dev->watchdog_timeo = TX_TIMEOUT;
3936 INIT_WORK(&ugeth->timeout_work, ucc_geth_timeout_work);
3937 netif_napi_add(dev, &ugeth->napi, ucc_geth_poll, 64);
3938 dev->mtu = 1500;
3939
3940 ugeth->msg_enable = netif_msg_init(debug.msg_enable, UGETH_MSG_DEFAULT);
3941 ugeth->phy_interface = phy_interface;
3942 ugeth->max_speed = max_speed;
3943
3944 err = register_netdev(dev);
3945 if (err) {
3946 if (netif_msg_probe(ugeth))
3947 ugeth_err("%s: Cannot register net device, aborting.",
3948 dev->name);
3949 free_netdev(dev);
3950 return err;
3951 }
3952
3953 mac_addr = of_get_mac_address(np);
3954 if (mac_addr)
3955 memcpy(dev->dev_addr, mac_addr, 6);
3956
3957 ugeth->ug_info = ug_info;
3958 ugeth->dev = device;
3959 ugeth->ndev = dev;
3960 ugeth->node = np;
3961
3962 return 0;
3963 }
3964
3965 static int ucc_geth_remove(struct platform_device* ofdev)
3966 {
3967 struct device *device = &ofdev->dev;
3968 struct net_device *dev = dev_get_drvdata(device);
3969 struct ucc_geth_private *ugeth = netdev_priv(dev);
3970
3971 unregister_netdev(dev);
3972 free_netdev(dev);
3973 ucc_geth_memclean(ugeth);
3974 dev_set_drvdata(device, NULL);
3975
3976 return 0;
3977 }
3978
3979 static struct of_device_id ucc_geth_match[] = {
3980 {
3981 .type = "network",
3982 .compatible = "ucc_geth",
3983 },
3984 {},
3985 };
3986
3987 MODULE_DEVICE_TABLE(of, ucc_geth_match);
3988
3989 static struct platform_driver ucc_geth_driver = {
3990 .driver = {
3991 .name = DRV_NAME,
3992 .owner = THIS_MODULE,
3993 .of_match_table = ucc_geth_match,
3994 },
3995 .probe = ucc_geth_probe,
3996 .remove = ucc_geth_remove,
3997 .suspend = ucc_geth_suspend,
3998 .resume = ucc_geth_resume,
3999 };
4000
4001 static int __init ucc_geth_init(void)
4002 {
4003 int i, ret;
4004
4005 if (netif_msg_drv(&debug))
4006 printk(KERN_INFO "ucc_geth: " DRV_DESC "\n");
4007 for (i = 0; i < 8; i++)
4008 memcpy(&(ugeth_info[i]), &ugeth_primary_info,
4009 sizeof(ugeth_primary_info));
4010
4011 ret = platform_driver_register(&ucc_geth_driver);
4012
4013 return ret;
4014 }
4015
4016 static void __exit ucc_geth_exit(void)
4017 {
4018 platform_driver_unregister(&ucc_geth_driver);
4019 }
4020
4021 module_init(ucc_geth_init);
4022 module_exit(ucc_geth_exit);
4023
4024 MODULE_AUTHOR("Freescale Semiconductor, Inc");
4025 MODULE_DESCRIPTION(DRV_DESC);
4026 MODULE_VERSION(DRV_VERSION);
4027 MODULE_LICENSE("GPL");