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