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x86/mm/pat: Don't report PAT on CPUs that don't support it
[linux/fpc-iii.git] / drivers / net / ethernet / freescale / ucc_geth.c
blob3f7ae9f64cd8771a834b104cec0b395c473a7bf2
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 <linux/uaccess.h>
41 #include <asm/irq.h>
42 #include <asm/io.h>
43 #include <soc/fsl/qe/immap_qe.h>
44 #include <soc/fsl/qe/qe.h>
45 #include <soc/fsl/qe/ucc.h>
46 #include <soc/fsl/qe/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 #ifdef DEBUG
439 static void get_statistics(struct ucc_geth_private *ugeth,
440 struct ucc_geth_tx_firmware_statistics *
441 tx_firmware_statistics,
442 struct ucc_geth_rx_firmware_statistics *
443 rx_firmware_statistics,
444 struct ucc_geth_hardware_statistics *hardware_statistics)
445 {
446 struct ucc_fast __iomem *uf_regs;
447 struct ucc_geth __iomem *ug_regs;
448 struct ucc_geth_tx_firmware_statistics_pram *p_tx_fw_statistics_pram;
449 struct ucc_geth_rx_firmware_statistics_pram *p_rx_fw_statistics_pram;
450
451 ug_regs = ugeth->ug_regs;
452 uf_regs = (struct ucc_fast __iomem *) ug_regs;
453 p_tx_fw_statistics_pram = ugeth->p_tx_fw_statistics_pram;
454 p_rx_fw_statistics_pram = ugeth->p_rx_fw_statistics_pram;
455
456 /* Tx firmware only if user handed pointer and driver actually
457 gathers Tx firmware statistics */
458 if (tx_firmware_statistics && p_tx_fw_statistics_pram) {
459 tx_firmware_statistics->sicoltx =
460 in_be32(&p_tx_fw_statistics_pram->sicoltx);
461 tx_firmware_statistics->mulcoltx =
462 in_be32(&p_tx_fw_statistics_pram->mulcoltx);
463 tx_firmware_statistics->latecoltxfr =
464 in_be32(&p_tx_fw_statistics_pram->latecoltxfr);
465 tx_firmware_statistics->frabortduecol =
466 in_be32(&p_tx_fw_statistics_pram->frabortduecol);
467 tx_firmware_statistics->frlostinmactxer =
468 in_be32(&p_tx_fw_statistics_pram->frlostinmactxer);
469 tx_firmware_statistics->carriersenseertx =
470 in_be32(&p_tx_fw_statistics_pram->carriersenseertx);
471 tx_firmware_statistics->frtxok =
472 in_be32(&p_tx_fw_statistics_pram->frtxok);
473 tx_firmware_statistics->txfrexcessivedefer =
474 in_be32(&p_tx_fw_statistics_pram->txfrexcessivedefer);
475 tx_firmware_statistics->txpkts256 =
476 in_be32(&p_tx_fw_statistics_pram->txpkts256);
477 tx_firmware_statistics->txpkts512 =
478 in_be32(&p_tx_fw_statistics_pram->txpkts512);
479 tx_firmware_statistics->txpkts1024 =
480 in_be32(&p_tx_fw_statistics_pram->txpkts1024);
481 tx_firmware_statistics->txpktsjumbo =
482 in_be32(&p_tx_fw_statistics_pram->txpktsjumbo);
483 }
484
485 /* Rx firmware only if user handed pointer and driver actually
486 * gathers Rx firmware statistics */
487 if (rx_firmware_statistics && p_rx_fw_statistics_pram) {
488 int i;
489 rx_firmware_statistics->frrxfcser =
490 in_be32(&p_rx_fw_statistics_pram->frrxfcser);
491 rx_firmware_statistics->fraligner =
492 in_be32(&p_rx_fw_statistics_pram->fraligner);
493 rx_firmware_statistics->inrangelenrxer =
494 in_be32(&p_rx_fw_statistics_pram->inrangelenrxer);
495 rx_firmware_statistics->outrangelenrxer =
496 in_be32(&p_rx_fw_statistics_pram->outrangelenrxer);
497 rx_firmware_statistics->frtoolong =
498 in_be32(&p_rx_fw_statistics_pram->frtoolong);
499 rx_firmware_statistics->runt =
500 in_be32(&p_rx_fw_statistics_pram->runt);
501 rx_firmware_statistics->verylongevent =
502 in_be32(&p_rx_fw_statistics_pram->verylongevent);
503 rx_firmware_statistics->symbolerror =
504 in_be32(&p_rx_fw_statistics_pram->symbolerror);
505 rx_firmware_statistics->dropbsy =
506 in_be32(&p_rx_fw_statistics_pram->dropbsy);
507 for (i = 0; i < 0x8; i++)
508 rx_firmware_statistics->res0[i] =
509 p_rx_fw_statistics_pram->res0[i];
510 rx_firmware_statistics->mismatchdrop =
511 in_be32(&p_rx_fw_statistics_pram->mismatchdrop);
512 rx_firmware_statistics->underpkts =
513 in_be32(&p_rx_fw_statistics_pram->underpkts);
514 rx_firmware_statistics->pkts256 =
515 in_be32(&p_rx_fw_statistics_pram->pkts256);
516 rx_firmware_statistics->pkts512 =
517 in_be32(&p_rx_fw_statistics_pram->pkts512);
518 rx_firmware_statistics->pkts1024 =
519 in_be32(&p_rx_fw_statistics_pram->pkts1024);
520 rx_firmware_statistics->pktsjumbo =
521 in_be32(&p_rx_fw_statistics_pram->pktsjumbo);
522 rx_firmware_statistics->frlossinmacer =
523 in_be32(&p_rx_fw_statistics_pram->frlossinmacer);
524 rx_firmware_statistics->pausefr =
525 in_be32(&p_rx_fw_statistics_pram->pausefr);
526 for (i = 0; i < 0x4; i++)
527 rx_firmware_statistics->res1[i] =
528 p_rx_fw_statistics_pram->res1[i];
529 rx_firmware_statistics->removevlan =
530 in_be32(&p_rx_fw_statistics_pram->removevlan);
531 rx_firmware_statistics->replacevlan =
532 in_be32(&p_rx_fw_statistics_pram->replacevlan);
533 rx_firmware_statistics->insertvlan =
534 in_be32(&p_rx_fw_statistics_pram->insertvlan);
535 }
536
537 /* Hardware only if user handed pointer and driver actually
538 gathers hardware statistics */
539 if (hardware_statistics &&
540 (in_be32(&uf_regs->upsmr) & UCC_GETH_UPSMR_HSE)) {
541 hardware_statistics->tx64 = in_be32(&ug_regs->tx64);
542 hardware_statistics->tx127 = in_be32(&ug_regs->tx127);
543 hardware_statistics->tx255 = in_be32(&ug_regs->tx255);
544 hardware_statistics->rx64 = in_be32(&ug_regs->rx64);
545 hardware_statistics->rx127 = in_be32(&ug_regs->rx127);
546 hardware_statistics->rx255 = in_be32(&ug_regs->rx255);
547 hardware_statistics->txok = in_be32(&ug_regs->txok);
548 hardware_statistics->txcf = in_be16(&ug_regs->txcf);
549 hardware_statistics->tmca = in_be32(&ug_regs->tmca);
550 hardware_statistics->tbca = in_be32(&ug_regs->tbca);
551 hardware_statistics->rxfok = in_be32(&ug_regs->rxfok);
552 hardware_statistics->rxbok = in_be32(&ug_regs->rxbok);
553 hardware_statistics->rbyt = in_be32(&ug_regs->rbyt);
554 hardware_statistics->rmca = in_be32(&ug_regs->rmca);
555 hardware_statistics->rbca = in_be32(&ug_regs->rbca);
556 }
557 }
558
559 static void dump_bds(struct ucc_geth_private *ugeth)
560 {
561 int i;
562 int length;
563
564 for (i = 0; i < ugeth->ug_info->numQueuesTx; i++) {
565 if (ugeth->p_tx_bd_ring[i]) {
566 length =
567 (ugeth->ug_info->bdRingLenTx[i] *
568 sizeof(struct qe_bd));
569 pr_info("TX BDs[%d]\n", i);
570 mem_disp(ugeth->p_tx_bd_ring[i], length);
571 }
572 }
573 for (i = 0; i < ugeth->ug_info->numQueuesRx; i++) {
574 if (ugeth->p_rx_bd_ring[i]) {
575 length =
576 (ugeth->ug_info->bdRingLenRx[i] *
577 sizeof(struct qe_bd));
578 pr_info("RX BDs[%d]\n", i);
579 mem_disp(ugeth->p_rx_bd_ring[i], length);
580 }
581 }
582 }
583
584 static void dump_regs(struct ucc_geth_private *ugeth)
585 {
586 int i;
587
588 pr_info("UCC%d Geth registers:\n", ugeth->ug_info->uf_info.ucc_num + 1);
589 pr_info("Base address: 0x%08x\n", (u32)ugeth->ug_regs);
590
591 pr_info("maccfg1 : addr - 0x%08x, val - 0x%08x\n",
592 (u32)&ugeth->ug_regs->maccfg1,
593 in_be32(&ugeth->ug_regs->maccfg1));
594 pr_info("maccfg2 : addr - 0x%08x, val - 0x%08x\n",
595 (u32)&ugeth->ug_regs->maccfg2,
596 in_be32(&ugeth->ug_regs->maccfg2));
597 pr_info("ipgifg : addr - 0x%08x, val - 0x%08x\n",
598 (u32)&ugeth->ug_regs->ipgifg,
599 in_be32(&ugeth->ug_regs->ipgifg));
600 pr_info("hafdup : addr - 0x%08x, val - 0x%08x\n",
601 (u32)&ugeth->ug_regs->hafdup,
602 in_be32(&ugeth->ug_regs->hafdup));
603 pr_info("ifctl : addr - 0x%08x, val - 0x%08x\n",
604 (u32)&ugeth->ug_regs->ifctl,
605 in_be32(&ugeth->ug_regs->ifctl));
606 pr_info("ifstat : addr - 0x%08x, val - 0x%08x\n",
607 (u32)&ugeth->ug_regs->ifstat,
608 in_be32(&ugeth->ug_regs->ifstat));
609 pr_info("macstnaddr1: addr - 0x%08x, val - 0x%08x\n",
610 (u32)&ugeth->ug_regs->macstnaddr1,
611 in_be32(&ugeth->ug_regs->macstnaddr1));
612 pr_info("macstnaddr2: addr - 0x%08x, val - 0x%08x\n",
613 (u32)&ugeth->ug_regs->macstnaddr2,
614 in_be32(&ugeth->ug_regs->macstnaddr2));
615 pr_info("uempr : addr - 0x%08x, val - 0x%08x\n",
616 (u32)&ugeth->ug_regs->uempr,
617 in_be32(&ugeth->ug_regs->uempr));
618 pr_info("utbipar : addr - 0x%08x, val - 0x%08x\n",
619 (u32)&ugeth->ug_regs->utbipar,
620 in_be32(&ugeth->ug_regs->utbipar));
621 pr_info("uescr : addr - 0x%08x, val - 0x%04x\n",
622 (u32)&ugeth->ug_regs->uescr,
623 in_be16(&ugeth->ug_regs->uescr));
624 pr_info("tx64 : addr - 0x%08x, val - 0x%08x\n",
625 (u32)&ugeth->ug_regs->tx64,
626 in_be32(&ugeth->ug_regs->tx64));
627 pr_info("tx127 : addr - 0x%08x, val - 0x%08x\n",
628 (u32)&ugeth->ug_regs->tx127,
629 in_be32(&ugeth->ug_regs->tx127));
630 pr_info("tx255 : addr - 0x%08x, val - 0x%08x\n",
631 (u32)&ugeth->ug_regs->tx255,
632 in_be32(&ugeth->ug_regs->tx255));
633 pr_info("rx64 : addr - 0x%08x, val - 0x%08x\n",
634 (u32)&ugeth->ug_regs->rx64,
635 in_be32(&ugeth->ug_regs->rx64));
636 pr_info("rx127 : addr - 0x%08x, val - 0x%08x\n",
637 (u32)&ugeth->ug_regs->rx127,
638 in_be32(&ugeth->ug_regs->rx127));
639 pr_info("rx255 : addr - 0x%08x, val - 0x%08x\n",
640 (u32)&ugeth->ug_regs->rx255,
641 in_be32(&ugeth->ug_regs->rx255));
642 pr_info("txok : addr - 0x%08x, val - 0x%08x\n",
643 (u32)&ugeth->ug_regs->txok,
644 in_be32(&ugeth->ug_regs->txok));
645 pr_info("txcf : addr - 0x%08x, val - 0x%04x\n",
646 (u32)&ugeth->ug_regs->txcf,
647 in_be16(&ugeth->ug_regs->txcf));
648 pr_info("tmca : addr - 0x%08x, val - 0x%08x\n",
649 (u32)&ugeth->ug_regs->tmca,
650 in_be32(&ugeth->ug_regs->tmca));
651 pr_info("tbca : addr - 0x%08x, val - 0x%08x\n",
652 (u32)&ugeth->ug_regs->tbca,
653 in_be32(&ugeth->ug_regs->tbca));
654 pr_info("rxfok : addr - 0x%08x, val - 0x%08x\n",
655 (u32)&ugeth->ug_regs->rxfok,
656 in_be32(&ugeth->ug_regs->rxfok));
657 pr_info("rxbok : addr - 0x%08x, val - 0x%08x\n",
658 (u32)&ugeth->ug_regs->rxbok,
659 in_be32(&ugeth->ug_regs->rxbok));
660 pr_info("rbyt : addr - 0x%08x, val - 0x%08x\n",
661 (u32)&ugeth->ug_regs->rbyt,
662 in_be32(&ugeth->ug_regs->rbyt));
663 pr_info("rmca : addr - 0x%08x, val - 0x%08x\n",
664 (u32)&ugeth->ug_regs->rmca,
665 in_be32(&ugeth->ug_regs->rmca));
666 pr_info("rbca : addr - 0x%08x, val - 0x%08x\n",
667 (u32)&ugeth->ug_regs->rbca,
668 in_be32(&ugeth->ug_regs->rbca));
669 pr_info("scar : addr - 0x%08x, val - 0x%08x\n",
670 (u32)&ugeth->ug_regs->scar,
671 in_be32(&ugeth->ug_regs->scar));
672 pr_info("scam : addr - 0x%08x, val - 0x%08x\n",
673 (u32)&ugeth->ug_regs->scam,
674 in_be32(&ugeth->ug_regs->scam));
675
676 if (ugeth->p_thread_data_tx) {
677 int numThreadsTxNumerical;
678 switch (ugeth->ug_info->numThreadsTx) {
679 case UCC_GETH_NUM_OF_THREADS_1:
680 numThreadsTxNumerical = 1;
681 break;
682 case UCC_GETH_NUM_OF_THREADS_2:
683 numThreadsTxNumerical = 2;
684 break;
685 case UCC_GETH_NUM_OF_THREADS_4:
686 numThreadsTxNumerical = 4;
687 break;
688 case UCC_GETH_NUM_OF_THREADS_6:
689 numThreadsTxNumerical = 6;
690 break;
691 case UCC_GETH_NUM_OF_THREADS_8:
692 numThreadsTxNumerical = 8;
693 break;
694 default:
695 numThreadsTxNumerical = 0;
696 break;
697 }
698
699 pr_info("Thread data TXs:\n");
700 pr_info("Base address: 0x%08x\n",
701 (u32)ugeth->p_thread_data_tx);
702 for (i = 0; i < numThreadsTxNumerical; i++) {
703 pr_info("Thread data TX[%d]:\n", i);
704 pr_info("Base address: 0x%08x\n",
705 (u32)&ugeth->p_thread_data_tx[i]);
706 mem_disp((u8 *) & ugeth->p_thread_data_tx[i],
707 sizeof(struct ucc_geth_thread_data_tx));
708 }
709 }
710 if (ugeth->p_thread_data_rx) {
711 int numThreadsRxNumerical;
712 switch (ugeth->ug_info->numThreadsRx) {
713 case UCC_GETH_NUM_OF_THREADS_1:
714 numThreadsRxNumerical = 1;
715 break;
716 case UCC_GETH_NUM_OF_THREADS_2:
717 numThreadsRxNumerical = 2;
718 break;
719 case UCC_GETH_NUM_OF_THREADS_4:
720 numThreadsRxNumerical = 4;
721 break;
722 case UCC_GETH_NUM_OF_THREADS_6:
723 numThreadsRxNumerical = 6;
724 break;
725 case UCC_GETH_NUM_OF_THREADS_8:
726 numThreadsRxNumerical = 8;
727 break;
728 default:
729 numThreadsRxNumerical = 0;
730 break;
731 }
732
733 pr_info("Thread data RX:\n");
734 pr_info("Base address: 0x%08x\n",
735 (u32)ugeth->p_thread_data_rx);
736 for (i = 0; i < numThreadsRxNumerical; i++) {
737 pr_info("Thread data RX[%d]:\n", i);
738 pr_info("Base address: 0x%08x\n",
739 (u32)&ugeth->p_thread_data_rx[i]);
740 mem_disp((u8 *) & ugeth->p_thread_data_rx[i],
741 sizeof(struct ucc_geth_thread_data_rx));
742 }
743 }
744 if (ugeth->p_exf_glbl_param) {
745 pr_info("EXF global param:\n");
746 pr_info("Base address: 0x%08x\n",
747 (u32)ugeth->p_exf_glbl_param);
748 mem_disp((u8 *) ugeth->p_exf_glbl_param,
749 sizeof(*ugeth->p_exf_glbl_param));
750 }
751 if (ugeth->p_tx_glbl_pram) {
752 pr_info("TX global param:\n");
753 pr_info("Base address: 0x%08x\n", (u32)ugeth->p_tx_glbl_pram);
754 pr_info("temoder : addr - 0x%08x, val - 0x%04x\n",
755 (u32)&ugeth->p_tx_glbl_pram->temoder,
756 in_be16(&ugeth->p_tx_glbl_pram->temoder));
757 pr_info("sqptr : addr - 0x%08x, val - 0x%08x\n",
758 (u32)&ugeth->p_tx_glbl_pram->sqptr,
759 in_be32(&ugeth->p_tx_glbl_pram->sqptr));
760 pr_info("schedulerbasepointer: addr - 0x%08x, val - 0x%08x\n",
761 (u32)&ugeth->p_tx_glbl_pram->schedulerbasepointer,
762 in_be32(&ugeth->p_tx_glbl_pram->schedulerbasepointer));
763 pr_info("txrmonbaseptr: addr - 0x%08x, val - 0x%08x\n",
764 (u32)&ugeth->p_tx_glbl_pram->txrmonbaseptr,
765 in_be32(&ugeth->p_tx_glbl_pram->txrmonbaseptr));
766 pr_info("tstate : addr - 0x%08x, val - 0x%08x\n",
767 (u32)&ugeth->p_tx_glbl_pram->tstate,
768 in_be32(&ugeth->p_tx_glbl_pram->tstate));
769 pr_info("iphoffset[0] : addr - 0x%08x, val - 0x%02x\n",
770 (u32)&ugeth->p_tx_glbl_pram->iphoffset[0],
771 ugeth->p_tx_glbl_pram->iphoffset[0]);
772 pr_info("iphoffset[1] : addr - 0x%08x, val - 0x%02x\n",
773 (u32)&ugeth->p_tx_glbl_pram->iphoffset[1],
774 ugeth->p_tx_glbl_pram->iphoffset[1]);
775 pr_info("iphoffset[2] : addr - 0x%08x, val - 0x%02x\n",
776 (u32)&ugeth->p_tx_glbl_pram->iphoffset[2],
777 ugeth->p_tx_glbl_pram->iphoffset[2]);
778 pr_info("iphoffset[3] : addr - 0x%08x, val - 0x%02x\n",
779 (u32)&ugeth->p_tx_glbl_pram->iphoffset[3],
780 ugeth->p_tx_glbl_pram->iphoffset[3]);
781 pr_info("iphoffset[4] : addr - 0x%08x, val - 0x%02x\n",
782 (u32)&ugeth->p_tx_glbl_pram->iphoffset[4],
783 ugeth->p_tx_glbl_pram->iphoffset[4]);
784 pr_info("iphoffset[5] : addr - 0x%08x, val - 0x%02x\n",
785 (u32)&ugeth->p_tx_glbl_pram->iphoffset[5],
786 ugeth->p_tx_glbl_pram->iphoffset[5]);
787 pr_info("iphoffset[6] : addr - 0x%08x, val - 0x%02x\n",
788 (u32)&ugeth->p_tx_glbl_pram->iphoffset[6],
789 ugeth->p_tx_glbl_pram->iphoffset[6]);
790 pr_info("iphoffset[7] : addr - 0x%08x, val - 0x%02x\n",
791 (u32)&ugeth->p_tx_glbl_pram->iphoffset[7],
792 ugeth->p_tx_glbl_pram->iphoffset[7]);
793 pr_info("vtagtable[0] : addr - 0x%08x, val - 0x%08x\n",
794 (u32)&ugeth->p_tx_glbl_pram->vtagtable[0],
795 in_be32(&ugeth->p_tx_glbl_pram->vtagtable[0]));
796 pr_info("vtagtable[1] : addr - 0x%08x, val - 0x%08x\n",
797 (u32)&ugeth->p_tx_glbl_pram->vtagtable[1],
798 in_be32(&ugeth->p_tx_glbl_pram->vtagtable[1]));
799 pr_info("vtagtable[2] : addr - 0x%08x, val - 0x%08x\n",
800 (u32)&ugeth->p_tx_glbl_pram->vtagtable[2],
801 in_be32(&ugeth->p_tx_glbl_pram->vtagtable[2]));
802 pr_info("vtagtable[3] : addr - 0x%08x, val - 0x%08x\n",
803 (u32)&ugeth->p_tx_glbl_pram->vtagtable[3],
804 in_be32(&ugeth->p_tx_glbl_pram->vtagtable[3]));
805 pr_info("vtagtable[4] : addr - 0x%08x, val - 0x%08x\n",
806 (u32)&ugeth->p_tx_glbl_pram->vtagtable[4],
807 in_be32(&ugeth->p_tx_glbl_pram->vtagtable[4]));
808 pr_info("vtagtable[5] : addr - 0x%08x, val - 0x%08x\n",
809 (u32)&ugeth->p_tx_glbl_pram->vtagtable[5],
810 in_be32(&ugeth->p_tx_glbl_pram->vtagtable[5]));
811 pr_info("vtagtable[6] : addr - 0x%08x, val - 0x%08x\n",
812 (u32)&ugeth->p_tx_glbl_pram->vtagtable[6],
813 in_be32(&ugeth->p_tx_glbl_pram->vtagtable[6]));
814 pr_info("vtagtable[7] : addr - 0x%08x, val - 0x%08x\n",
815 (u32)&ugeth->p_tx_glbl_pram->vtagtable[7],
816 in_be32(&ugeth->p_tx_glbl_pram->vtagtable[7]));
817 pr_info("tqptr : addr - 0x%08x, val - 0x%08x\n",
818 (u32)&ugeth->p_tx_glbl_pram->tqptr,
819 in_be32(&ugeth->p_tx_glbl_pram->tqptr));
820 }
821 if (ugeth->p_rx_glbl_pram) {
822 pr_info("RX global param:\n");
823 pr_info("Base address: 0x%08x\n", (u32)ugeth->p_rx_glbl_pram);
824 pr_info("remoder : addr - 0x%08x, val - 0x%08x\n",
825 (u32)&ugeth->p_rx_glbl_pram->remoder,
826 in_be32(&ugeth->p_rx_glbl_pram->remoder));
827 pr_info("rqptr : addr - 0x%08x, val - 0x%08x\n",
828 (u32)&ugeth->p_rx_glbl_pram->rqptr,
829 in_be32(&ugeth->p_rx_glbl_pram->rqptr));
830 pr_info("typeorlen : addr - 0x%08x, val - 0x%04x\n",
831 (u32)&ugeth->p_rx_glbl_pram->typeorlen,
832 in_be16(&ugeth->p_rx_glbl_pram->typeorlen));
833 pr_info("rxgstpack : addr - 0x%08x, val - 0x%02x\n",
834 (u32)&ugeth->p_rx_glbl_pram->rxgstpack,
835 ugeth->p_rx_glbl_pram->rxgstpack);
836 pr_info("rxrmonbaseptr : addr - 0x%08x, val - 0x%08x\n",
837 (u32)&ugeth->p_rx_glbl_pram->rxrmonbaseptr,
838 in_be32(&ugeth->p_rx_glbl_pram->rxrmonbaseptr));
839 pr_info("intcoalescingptr: addr - 0x%08x, val - 0x%08x\n",
840 (u32)&ugeth->p_rx_glbl_pram->intcoalescingptr,
841 in_be32(&ugeth->p_rx_glbl_pram->intcoalescingptr));
842 pr_info("rstate : addr - 0x%08x, val - 0x%02x\n",
843 (u32)&ugeth->p_rx_glbl_pram->rstate,
844 ugeth->p_rx_glbl_pram->rstate);
845 pr_info("mrblr : addr - 0x%08x, val - 0x%04x\n",
846 (u32)&ugeth->p_rx_glbl_pram->mrblr,
847 in_be16(&ugeth->p_rx_glbl_pram->mrblr));
848 pr_info("rbdqptr : addr - 0x%08x, val - 0x%08x\n",
849 (u32)&ugeth->p_rx_glbl_pram->rbdqptr,
850 in_be32(&ugeth->p_rx_glbl_pram->rbdqptr));
851 pr_info("mflr : addr - 0x%08x, val - 0x%04x\n",
852 (u32)&ugeth->p_rx_glbl_pram->mflr,
853 in_be16(&ugeth->p_rx_glbl_pram->mflr));
854 pr_info("minflr : addr - 0x%08x, val - 0x%04x\n",
855 (u32)&ugeth->p_rx_glbl_pram->minflr,
856 in_be16(&ugeth->p_rx_glbl_pram->minflr));
857 pr_info("maxd1 : addr - 0x%08x, val - 0x%04x\n",
858 (u32)&ugeth->p_rx_glbl_pram->maxd1,
859 in_be16(&ugeth->p_rx_glbl_pram->maxd1));
860 pr_info("maxd2 : addr - 0x%08x, val - 0x%04x\n",
861 (u32)&ugeth->p_rx_glbl_pram->maxd2,
862 in_be16(&ugeth->p_rx_glbl_pram->maxd2));
863 pr_info("ecamptr : addr - 0x%08x, val - 0x%08x\n",
864 (u32)&ugeth->p_rx_glbl_pram->ecamptr,
865 in_be32(&ugeth->p_rx_glbl_pram->ecamptr));
866 pr_info("l2qt : addr - 0x%08x, val - 0x%08x\n",
867 (u32)&ugeth->p_rx_glbl_pram->l2qt,
868 in_be32(&ugeth->p_rx_glbl_pram->l2qt));
869 pr_info("l3qt[0] : addr - 0x%08x, val - 0x%08x\n",
870 (u32)&ugeth->p_rx_glbl_pram->l3qt[0],
871 in_be32(&ugeth->p_rx_glbl_pram->l3qt[0]));
872 pr_info("l3qt[1] : addr - 0x%08x, val - 0x%08x\n",
873 (u32)&ugeth->p_rx_glbl_pram->l3qt[1],
874 in_be32(&ugeth->p_rx_glbl_pram->l3qt[1]));
875 pr_info("l3qt[2] : addr - 0x%08x, val - 0x%08x\n",
876 (u32)&ugeth->p_rx_glbl_pram->l3qt[2],
877 in_be32(&ugeth->p_rx_glbl_pram->l3qt[2]));
878 pr_info("l3qt[3] : addr - 0x%08x, val - 0x%08x\n",
879 (u32)&ugeth->p_rx_glbl_pram->l3qt[3],
880 in_be32(&ugeth->p_rx_glbl_pram->l3qt[3]));
881 pr_info("l3qt[4] : addr - 0x%08x, val - 0x%08x\n",
882 (u32)&ugeth->p_rx_glbl_pram->l3qt[4],
883 in_be32(&ugeth->p_rx_glbl_pram->l3qt[4]));
884 pr_info("l3qt[5] : addr - 0x%08x, val - 0x%08x\n",
885 (u32)&ugeth->p_rx_glbl_pram->l3qt[5],
886 in_be32(&ugeth->p_rx_glbl_pram->l3qt[5]));
887 pr_info("l3qt[6] : addr - 0x%08x, val - 0x%08x\n",
888 (u32)&ugeth->p_rx_glbl_pram->l3qt[6],
889 in_be32(&ugeth->p_rx_glbl_pram->l3qt[6]));
890 pr_info("l3qt[7] : addr - 0x%08x, val - 0x%08x\n",
891 (u32)&ugeth->p_rx_glbl_pram->l3qt[7],
892 in_be32(&ugeth->p_rx_glbl_pram->l3qt[7]));
893 pr_info("vlantype : addr - 0x%08x, val - 0x%04x\n",
894 (u32)&ugeth->p_rx_glbl_pram->vlantype,
895 in_be16(&ugeth->p_rx_glbl_pram->vlantype));
896 pr_info("vlantci : addr - 0x%08x, val - 0x%04x\n",
897 (u32)&ugeth->p_rx_glbl_pram->vlantci,
898 in_be16(&ugeth->p_rx_glbl_pram->vlantci));
899 for (i = 0; i < 64; i++)
900 pr_info("addressfiltering[%d]: addr - 0x%08x, val - 0x%02x\n",
901 i,
902 (u32)&ugeth->p_rx_glbl_pram->addressfiltering[i],
903 ugeth->p_rx_glbl_pram->addressfiltering[i]);
904 pr_info("exfGlobalParam : addr - 0x%08x, val - 0x%08x\n",
905 (u32)&ugeth->p_rx_glbl_pram->exfGlobalParam,
906 in_be32(&ugeth->p_rx_glbl_pram->exfGlobalParam));
907 }
908 if (ugeth->p_send_q_mem_reg) {
909 pr_info("Send Q memory registers:\n");
910 pr_info("Base address: 0x%08x\n", (u32)ugeth->p_send_q_mem_reg);
911 for (i = 0; i < ugeth->ug_info->numQueuesTx; i++) {
912 pr_info("SQQD[%d]:\n", i);
913 pr_info("Base address: 0x%08x\n",
914 (u32)&ugeth->p_send_q_mem_reg->sqqd[i]);
915 mem_disp((u8 *) & ugeth->p_send_q_mem_reg->sqqd[i],
916 sizeof(struct ucc_geth_send_queue_qd));
917 }
918 }
919 if (ugeth->p_scheduler) {
920 pr_info("Scheduler:\n");
921 pr_info("Base address: 0x%08x\n", (u32)ugeth->p_scheduler);
922 mem_disp((u8 *) ugeth->p_scheduler,
923 sizeof(*ugeth->p_scheduler));
924 }
925 if (ugeth->p_tx_fw_statistics_pram) {
926 pr_info("TX FW statistics pram:\n");
927 pr_info("Base address: 0x%08x\n",
928 (u32)ugeth->p_tx_fw_statistics_pram);
929 mem_disp((u8 *) ugeth->p_tx_fw_statistics_pram,
930 sizeof(*ugeth->p_tx_fw_statistics_pram));
931 }
932 if (ugeth->p_rx_fw_statistics_pram) {
933 pr_info("RX FW statistics pram:\n");
934 pr_info("Base address: 0x%08x\n",
935 (u32)ugeth->p_rx_fw_statistics_pram);
936 mem_disp((u8 *) ugeth->p_rx_fw_statistics_pram,
937 sizeof(*ugeth->p_rx_fw_statistics_pram));
938 }
939 if (ugeth->p_rx_irq_coalescing_tbl) {
940 pr_info("RX IRQ coalescing tables:\n");
941 pr_info("Base address: 0x%08x\n",
942 (u32)ugeth->p_rx_irq_coalescing_tbl);
943 for (i = 0; i < ugeth->ug_info->numQueuesRx; i++) {
944 pr_info("RX IRQ coalescing table entry[%d]:\n", i);
945 pr_info("Base address: 0x%08x\n",
946 (u32)&ugeth->p_rx_irq_coalescing_tbl->
947 coalescingentry[i]);
948 pr_info("interruptcoalescingmaxvalue: addr - 0x%08x, val - 0x%08x\n",
949 (u32)&ugeth->p_rx_irq_coalescing_tbl->
950 coalescingentry[i].interruptcoalescingmaxvalue,
951 in_be32(&ugeth->p_rx_irq_coalescing_tbl->
952 coalescingentry[i].
953 interruptcoalescingmaxvalue));
954 pr_info("interruptcoalescingcounter : addr - 0x%08x, val - 0x%08x\n",
955 (u32)&ugeth->p_rx_irq_coalescing_tbl->
956 coalescingentry[i].interruptcoalescingcounter,
957 in_be32(&ugeth->p_rx_irq_coalescing_tbl->
958 coalescingentry[i].
959 interruptcoalescingcounter));
960 }
961 }
962 if (ugeth->p_rx_bd_qs_tbl) {
963 pr_info("RX BD QS tables:\n");
964 pr_info("Base address: 0x%08x\n", (u32)ugeth->p_rx_bd_qs_tbl);
965 for (i = 0; i < ugeth->ug_info->numQueuesRx; i++) {
966 pr_info("RX BD QS table[%d]:\n", i);
967 pr_info("Base address: 0x%08x\n",
968 (u32)&ugeth->p_rx_bd_qs_tbl[i]);
969 pr_info("bdbaseptr : addr - 0x%08x, val - 0x%08x\n",
970 (u32)&ugeth->p_rx_bd_qs_tbl[i].bdbaseptr,
971 in_be32(&ugeth->p_rx_bd_qs_tbl[i].bdbaseptr));
972 pr_info("bdptr : addr - 0x%08x, val - 0x%08x\n",
973 (u32)&ugeth->p_rx_bd_qs_tbl[i].bdptr,
974 in_be32(&ugeth->p_rx_bd_qs_tbl[i].bdptr));
975 pr_info("externalbdbaseptr: addr - 0x%08x, val - 0x%08x\n",
976 (u32)&ugeth->p_rx_bd_qs_tbl[i].externalbdbaseptr,
977 in_be32(&ugeth->p_rx_bd_qs_tbl[i].
978 externalbdbaseptr));
979 pr_info("externalbdptr : addr - 0x%08x, val - 0x%08x\n",
980 (u32)&ugeth->p_rx_bd_qs_tbl[i].externalbdptr,
981 in_be32(&ugeth->p_rx_bd_qs_tbl[i].externalbdptr));
982 pr_info("ucode RX Prefetched BDs:\n");
983 pr_info("Base address: 0x%08x\n",
984 (u32)qe_muram_addr(in_be32
985 (&ugeth->p_rx_bd_qs_tbl[i].
986 bdbaseptr)));
987 mem_disp((u8 *)
988 qe_muram_addr(in_be32
989 (&ugeth->p_rx_bd_qs_tbl[i].
990 bdbaseptr)),
991 sizeof(struct ucc_geth_rx_prefetched_bds));
992 }
993 }
994 if (ugeth->p_init_enet_param_shadow) {
995 int size;
996 pr_info("Init enet param shadow:\n");
997 pr_info("Base address: 0x%08x\n",
998 (u32) ugeth->p_init_enet_param_shadow);
999 mem_disp((u8 *) ugeth->p_init_enet_param_shadow,
1000 sizeof(*ugeth->p_init_enet_param_shadow));
1001
1002 size = sizeof(struct ucc_geth_thread_rx_pram);
1003 if (ugeth->ug_info->rxExtendedFiltering) {
1004 size +=
1005 THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING;
1006 if (ugeth->ug_info->largestexternallookupkeysize ==
1007 QE_FLTR_TABLE_LOOKUP_KEY_SIZE_8_BYTES)
1008 size +=
1009 THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING_8;
1010 if (ugeth->ug_info->largestexternallookupkeysize ==
1011 QE_FLTR_TABLE_LOOKUP_KEY_SIZE_16_BYTES)
1012 size +=
1013 THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING_16;
1014 }
1015
1016 dump_init_enet_entries(ugeth,
1017 &(ugeth->p_init_enet_param_shadow->
1018 txthread[0]),
1019 ENET_INIT_PARAM_MAX_ENTRIES_TX,
1020 sizeof(struct ucc_geth_thread_tx_pram),
1021 ugeth->ug_info->riscTx, 0);
1022 dump_init_enet_entries(ugeth,
1023 &(ugeth->p_init_enet_param_shadow->
1024 rxthread[0]),
1025 ENET_INIT_PARAM_MAX_ENTRIES_RX, size,
1026 ugeth->ug_info->riscRx, 1);
1027 }
1028 }
1029 #endif /* DEBUG */
1030
1031 static void init_default_reg_vals(u32 __iomem *upsmr_register,
1032 u32 __iomem *maccfg1_register,
1033 u32 __iomem *maccfg2_register)
1034 {
1035 out_be32(upsmr_register, UCC_GETH_UPSMR_INIT);
1036 out_be32(maccfg1_register, UCC_GETH_MACCFG1_INIT);
1037 out_be32(maccfg2_register, UCC_GETH_MACCFG2_INIT);
1038 }
1039
1040 static int init_half_duplex_params(int alt_beb,
1041 int back_pressure_no_backoff,
1042 int no_backoff,
1043 int excess_defer,
1044 u8 alt_beb_truncation,
1045 u8 max_retransmissions,
1046 u8 collision_window,
1047 u32 __iomem *hafdup_register)
1048 {
1049 u32 value = 0;
1050
1051 if ((alt_beb_truncation > HALFDUP_ALT_BEB_TRUNCATION_MAX) ||
1052 (max_retransmissions > HALFDUP_MAX_RETRANSMISSION_MAX) ||
1053 (collision_window > HALFDUP_COLLISION_WINDOW_MAX))
1054 return -EINVAL;
1055
1056 value = (u32) (alt_beb_truncation << HALFDUP_ALT_BEB_TRUNCATION_SHIFT);
1057
1058 if (alt_beb)
1059 value |= HALFDUP_ALT_BEB;
1060 if (back_pressure_no_backoff)
1061 value |= HALFDUP_BACK_PRESSURE_NO_BACKOFF;
1062 if (no_backoff)
1063 value |= HALFDUP_NO_BACKOFF;
1064 if (excess_defer)
1065 value |= HALFDUP_EXCESSIVE_DEFER;
1066
1067 value |= (max_retransmissions << HALFDUP_MAX_RETRANSMISSION_SHIFT);
1068
1069 value |= collision_window;
1070
1071 out_be32(hafdup_register, value);
1072 return 0;
1073 }
1074
1075 static int init_inter_frame_gap_params(u8 non_btb_cs_ipg,
1076 u8 non_btb_ipg,
1077 u8 min_ifg,
1078 u8 btb_ipg,
1079 u32 __iomem *ipgifg_register)
1080 {
1081 u32 value = 0;
1082
1083 /* Non-Back-to-back IPG part 1 should be <= Non-Back-to-back
1084 IPG part 2 */
1085 if (non_btb_cs_ipg > non_btb_ipg)
1086 return -EINVAL;
1087
1088 if ((non_btb_cs_ipg > IPGIFG_NON_BACK_TO_BACK_IFG_PART1_MAX) ||
1089 (non_btb_ipg > IPGIFG_NON_BACK_TO_BACK_IFG_PART2_MAX) ||
1090 /*(min_ifg > IPGIFG_MINIMUM_IFG_ENFORCEMENT_MAX) || */
1091 (btb_ipg > IPGIFG_BACK_TO_BACK_IFG_MAX))
1092 return -EINVAL;
1093
1094 value |=
1095 ((non_btb_cs_ipg << IPGIFG_NON_BACK_TO_BACK_IFG_PART1_SHIFT) &
1096 IPGIFG_NBTB_CS_IPG_MASK);
1097 value |=
1098 ((non_btb_ipg << IPGIFG_NON_BACK_TO_BACK_IFG_PART2_SHIFT) &
1099 IPGIFG_NBTB_IPG_MASK);
1100 value |=
1101 ((min_ifg << IPGIFG_MINIMUM_IFG_ENFORCEMENT_SHIFT) &
1102 IPGIFG_MIN_IFG_MASK);
1103 value |= (btb_ipg & IPGIFG_BTB_IPG_MASK);
1104
1105 out_be32(ipgifg_register, value);
1106 return 0;
1107 }
1108
1109 int init_flow_control_params(u32 automatic_flow_control_mode,
1110 int rx_flow_control_enable,
1111 int tx_flow_control_enable,
1112 u16 pause_period,
1113 u16 extension_field,
1114 u32 __iomem *upsmr_register,
1115 u32 __iomem *uempr_register,
1116 u32 __iomem *maccfg1_register)
1117 {
1118 u32 value = 0;
1119
1120 /* Set UEMPR register */
1121 value = (u32) pause_period << UEMPR_PAUSE_TIME_VALUE_SHIFT;
1122 value |= (u32) extension_field << UEMPR_EXTENDED_PAUSE_TIME_VALUE_SHIFT;
1123 out_be32(uempr_register, value);
1124
1125 /* Set UPSMR register */
1126 setbits32(upsmr_register, automatic_flow_control_mode);
1127
1128 value = in_be32(maccfg1_register);
1129 if (rx_flow_control_enable)
1130 value |= MACCFG1_FLOW_RX;
1131 if (tx_flow_control_enable)
1132 value |= MACCFG1_FLOW_TX;
1133 out_be32(maccfg1_register, value);
1134
1135 return 0;
1136 }
1137
1138 static int init_hw_statistics_gathering_mode(int enable_hardware_statistics,
1139 int auto_zero_hardware_statistics,
1140 u32 __iomem *upsmr_register,
1141 u16 __iomem *uescr_register)
1142 {
1143 u16 uescr_value = 0;
1144
1145 /* Enable hardware statistics gathering if requested */
1146 if (enable_hardware_statistics)
1147 setbits32(upsmr_register, UCC_GETH_UPSMR_HSE);
1148
1149 /* Clear hardware statistics counters */
1150 uescr_value = in_be16(uescr_register);
1151 uescr_value |= UESCR_CLRCNT;
1152 /* Automatically zero hardware statistics counters on read,
1153 if requested */
1154 if (auto_zero_hardware_statistics)
1155 uescr_value |= UESCR_AUTOZ;
1156 out_be16(uescr_register, uescr_value);
1157
1158 return 0;
1159 }
1160
1161 static int init_firmware_statistics_gathering_mode(int
1162 enable_tx_firmware_statistics,
1163 int enable_rx_firmware_statistics,
1164 u32 __iomem *tx_rmon_base_ptr,
1165 u32 tx_firmware_statistics_structure_address,
1166 u32 __iomem *rx_rmon_base_ptr,
1167 u32 rx_firmware_statistics_structure_address,
1168 u16 __iomem *temoder_register,
1169 u32 __iomem *remoder_register)
1170 {
1171 /* Note: this function does not check if */
1172 /* the parameters it receives are NULL */
1173
1174 if (enable_tx_firmware_statistics) {
1175 out_be32(tx_rmon_base_ptr,
1176 tx_firmware_statistics_structure_address);
1177 setbits16(temoder_register, TEMODER_TX_RMON_STATISTICS_ENABLE);
1178 }
1179
1180 if (enable_rx_firmware_statistics) {
1181 out_be32(rx_rmon_base_ptr,
1182 rx_firmware_statistics_structure_address);
1183 setbits32(remoder_register, REMODER_RX_RMON_STATISTICS_ENABLE);
1184 }
1185
1186 return 0;
1187 }
1188
1189 static int init_mac_station_addr_regs(u8 address_byte_0,
1190 u8 address_byte_1,
1191 u8 address_byte_2,
1192 u8 address_byte_3,
1193 u8 address_byte_4,
1194 u8 address_byte_5,
1195 u32 __iomem *macstnaddr1_register,
1196 u32 __iomem *macstnaddr2_register)
1197 {
1198 u32 value = 0;
1199
1200 /* Example: for a station address of 0x12345678ABCD, */
1201 /* 0x12 is byte 0, 0x34 is byte 1 and so on and 0xCD is byte 5 */
1202
1203 /* MACSTNADDR1 Register: */
1204
1205 /* 0 7 8 15 */
1206 /* station address byte 5 station address byte 4 */
1207 /* 16 23 24 31 */
1208 /* station address byte 3 station address byte 2 */
1209 value |= (u32) ((address_byte_2 << 0) & 0x000000FF);
1210 value |= (u32) ((address_byte_3 << 8) & 0x0000FF00);
1211 value |= (u32) ((address_byte_4 << 16) & 0x00FF0000);
1212 value |= (u32) ((address_byte_5 << 24) & 0xFF000000);
1213
1214 out_be32(macstnaddr1_register, value);
1215
1216 /* MACSTNADDR2 Register: */
1217
1218 /* 0 7 8 15 */
1219 /* station address byte 1 station address byte 0 */
1220 /* 16 23 24 31 */
1221 /* reserved reserved */
1222 value = 0;
1223 value |= (u32) ((address_byte_0 << 16) & 0x00FF0000);
1224 value |= (u32) ((address_byte_1 << 24) & 0xFF000000);
1225
1226 out_be32(macstnaddr2_register, value);
1227
1228 return 0;
1229 }
1230
1231 static int init_check_frame_length_mode(int length_check,
1232 u32 __iomem *maccfg2_register)
1233 {
1234 u32 value = 0;
1235
1236 value = in_be32(maccfg2_register);
1237
1238 if (length_check)
1239 value |= MACCFG2_LC;
1240 else
1241 value &= ~MACCFG2_LC;
1242
1243 out_be32(maccfg2_register, value);
1244 return 0;
1245 }
1246
1247 static int init_preamble_length(u8 preamble_length,
1248 u32 __iomem *maccfg2_register)
1249 {
1250 if ((preamble_length < 3) || (preamble_length > 7))
1251 return -EINVAL;
1252
1253 clrsetbits_be32(maccfg2_register, MACCFG2_PREL_MASK,
1254 preamble_length << MACCFG2_PREL_SHIFT);
1255
1256 return 0;
1257 }
1258
1259 static int init_rx_parameters(int reject_broadcast,
1260 int receive_short_frames,
1261 int promiscuous, u32 __iomem *upsmr_register)
1262 {
1263 u32 value = 0;
1264
1265 value = in_be32(upsmr_register);
1266
1267 if (reject_broadcast)
1268 value |= UCC_GETH_UPSMR_BRO;
1269 else
1270 value &= ~UCC_GETH_UPSMR_BRO;
1271
1272 if (receive_short_frames)
1273 value |= UCC_GETH_UPSMR_RSH;
1274 else
1275 value &= ~UCC_GETH_UPSMR_RSH;
1276
1277 if (promiscuous)
1278 value |= UCC_GETH_UPSMR_PRO;
1279 else
1280 value &= ~UCC_GETH_UPSMR_PRO;
1281
1282 out_be32(upsmr_register, value);
1283
1284 return 0;
1285 }
1286
1287 static int init_max_rx_buff_len(u16 max_rx_buf_len,
1288 u16 __iomem *mrblr_register)
1289 {
1290 /* max_rx_buf_len value must be a multiple of 128 */
1291 if ((max_rx_buf_len == 0) ||
1292 (max_rx_buf_len % UCC_GETH_MRBLR_ALIGNMENT))
1293 return -EINVAL;
1294
1295 out_be16(mrblr_register, max_rx_buf_len);
1296 return 0;
1297 }
1298
1299 static int init_min_frame_len(u16 min_frame_length,
1300 u16 __iomem *minflr_register,
1301 u16 __iomem *mrblr_register)
1302 {
1303 u16 mrblr_value = 0;
1304
1305 mrblr_value = in_be16(mrblr_register);
1306 if (min_frame_length >= (mrblr_value - 4))
1307 return -EINVAL;
1308
1309 out_be16(minflr_register, min_frame_length);
1310 return 0;
1311 }
1312
1313 static int adjust_enet_interface(struct ucc_geth_private *ugeth)
1314 {
1315 struct ucc_geth_info *ug_info;
1316 struct ucc_geth __iomem *ug_regs;
1317 struct ucc_fast __iomem *uf_regs;
1318 int ret_val;
1319 u32 upsmr, maccfg2;
1320 u16 value;
1321
1322 ugeth_vdbg("%s: IN", __func__);
1323
1324 ug_info = ugeth->ug_info;
1325 ug_regs = ugeth->ug_regs;
1326 uf_regs = ugeth->uccf->uf_regs;
1327
1328 /* Set MACCFG2 */
1329 maccfg2 = in_be32(&ug_regs->maccfg2);
1330 maccfg2 &= ~MACCFG2_INTERFACE_MODE_MASK;
1331 if ((ugeth->max_speed == SPEED_10) ||
1332 (ugeth->max_speed == SPEED_100))
1333 maccfg2 |= MACCFG2_INTERFACE_MODE_NIBBLE;
1334 else if (ugeth->max_speed == SPEED_1000)
1335 maccfg2 |= MACCFG2_INTERFACE_MODE_BYTE;
1336 maccfg2 |= ug_info->padAndCrc;
1337 out_be32(&ug_regs->maccfg2, maccfg2);
1338
1339 /* Set UPSMR */
1340 upsmr = in_be32(&uf_regs->upsmr);
1341 upsmr &= ~(UCC_GETH_UPSMR_RPM | UCC_GETH_UPSMR_R10M |
1342 UCC_GETH_UPSMR_TBIM | UCC_GETH_UPSMR_RMM);
1343 if ((ugeth->phy_interface == PHY_INTERFACE_MODE_RMII) ||
1344 (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII) ||
1345 (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII_ID) ||
1346 (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII_RXID) ||
1347 (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII_TXID) ||
1348 (ugeth->phy_interface == PHY_INTERFACE_MODE_RTBI)) {
1349 if (ugeth->phy_interface != PHY_INTERFACE_MODE_RMII)
1350 upsmr |= UCC_GETH_UPSMR_RPM;
1351 switch (ugeth->max_speed) {
1352 case SPEED_10:
1353 upsmr |= UCC_GETH_UPSMR_R10M;
1354 /* FALLTHROUGH */
1355 case SPEED_100:
1356 if (ugeth->phy_interface != PHY_INTERFACE_MODE_RTBI)
1357 upsmr |= UCC_GETH_UPSMR_RMM;
1358 }
1359 }
1360 if ((ugeth->phy_interface == PHY_INTERFACE_MODE_TBI) ||
1361 (ugeth->phy_interface == PHY_INTERFACE_MODE_RTBI)) {
1362 upsmr |= UCC_GETH_UPSMR_TBIM;
1363 }
1364 if ((ugeth->phy_interface == PHY_INTERFACE_MODE_SGMII))
1365 upsmr |= UCC_GETH_UPSMR_SGMM;
1366
1367 out_be32(&uf_regs->upsmr, upsmr);
1368
1369 /* Disable autonegotiation in tbi mode, because by default it
1370 comes up in autonegotiation mode. */
1371 /* Note that this depends on proper setting in utbipar register. */
1372 if ((ugeth->phy_interface == PHY_INTERFACE_MODE_TBI) ||
1373 (ugeth->phy_interface == PHY_INTERFACE_MODE_RTBI)) {
1374 struct ucc_geth_info *ug_info = ugeth->ug_info;
1375 struct phy_device *tbiphy;
1376
1377 if (!ug_info->tbi_node)
1378 pr_warn("TBI mode requires that the device tree specify a tbi-handle\n");
1379
1380 tbiphy = of_phy_find_device(ug_info->tbi_node);
1381 if (!tbiphy)
1382 pr_warn("Could not get TBI device\n");
1383
1384 value = phy_read(tbiphy, ENET_TBI_MII_CR);
1385 value &= ~0x1000; /* Turn off autonegotiation */
1386 phy_write(tbiphy, ENET_TBI_MII_CR, value);
1387
1388 put_device(&tbiphy->mdio.dev);
1389 }
1390
1391 init_check_frame_length_mode(ug_info->lengthCheckRx, &ug_regs->maccfg2);
1392
1393 ret_val = init_preamble_length(ug_info->prel, &ug_regs->maccfg2);
1394 if (ret_val != 0) {
1395 if (netif_msg_probe(ugeth))
1396 pr_err("Preamble length must be between 3 and 7 inclusive\n");
1397 return ret_val;
1398 }
1399
1400 return 0;
1401 }
1402
1403 static int ugeth_graceful_stop_tx(struct ucc_geth_private *ugeth)
1404 {
1405 struct ucc_fast_private *uccf;
1406 u32 cecr_subblock;
1407 u32 temp;
1408 int i = 10;
1409
1410 uccf = ugeth->uccf;
1411
1412 /* Mask GRACEFUL STOP TX interrupt bit and clear it */
1413 clrbits32(uccf->p_uccm, UCC_GETH_UCCE_GRA);
1414 out_be32(uccf->p_ucce, UCC_GETH_UCCE_GRA); /* clear by writing 1 */
1415
1416 /* Issue host command */
1417 cecr_subblock =
1418 ucc_fast_get_qe_cr_subblock(ugeth->ug_info->uf_info.ucc_num);
1419 qe_issue_cmd(QE_GRACEFUL_STOP_TX, cecr_subblock,
1420 QE_CR_PROTOCOL_ETHERNET, 0);
1421
1422 /* Wait for command to complete */
1423 do {
1424 msleep(10);
1425 temp = in_be32(uccf->p_ucce);
1426 } while (!(temp & UCC_GETH_UCCE_GRA) && --i);
1427
1428 uccf->stopped_tx = 1;
1429
1430 return 0;
1431 }
1432
1433 static int ugeth_graceful_stop_rx(struct ucc_geth_private *ugeth)
1434 {
1435 struct ucc_fast_private *uccf;
1436 u32 cecr_subblock;
1437 u8 temp;
1438 int i = 10;
1439
1440 uccf = ugeth->uccf;
1441
1442 /* Clear acknowledge bit */
1443 temp = in_8(&ugeth->p_rx_glbl_pram->rxgstpack);
1444 temp &= ~GRACEFUL_STOP_ACKNOWLEDGE_RX;
1445 out_8(&ugeth->p_rx_glbl_pram->rxgstpack, temp);
1446
1447 /* Keep issuing command and checking acknowledge bit until
1448 it is asserted, according to spec */
1449 do {
1450 /* Issue host command */
1451 cecr_subblock =
1452 ucc_fast_get_qe_cr_subblock(ugeth->ug_info->uf_info.
1453 ucc_num);
1454 qe_issue_cmd(QE_GRACEFUL_STOP_RX, cecr_subblock,
1455 QE_CR_PROTOCOL_ETHERNET, 0);
1456 msleep(10);
1457 temp = in_8(&ugeth->p_rx_glbl_pram->rxgstpack);
1458 } while (!(temp & GRACEFUL_STOP_ACKNOWLEDGE_RX) && --i);
1459
1460 uccf->stopped_rx = 1;
1461
1462 return 0;
1463 }
1464
1465 static int ugeth_restart_tx(struct ucc_geth_private *ugeth)
1466 {
1467 struct ucc_fast_private *uccf;
1468 u32 cecr_subblock;
1469
1470 uccf = ugeth->uccf;
1471
1472 cecr_subblock =
1473 ucc_fast_get_qe_cr_subblock(ugeth->ug_info->uf_info.ucc_num);
1474 qe_issue_cmd(QE_RESTART_TX, cecr_subblock, QE_CR_PROTOCOL_ETHERNET, 0);
1475 uccf->stopped_tx = 0;
1476
1477 return 0;
1478 }
1479
1480 static int ugeth_restart_rx(struct ucc_geth_private *ugeth)
1481 {
1482 struct ucc_fast_private *uccf;
1483 u32 cecr_subblock;
1484
1485 uccf = ugeth->uccf;
1486
1487 cecr_subblock =
1488 ucc_fast_get_qe_cr_subblock(ugeth->ug_info->uf_info.ucc_num);
1489 qe_issue_cmd(QE_RESTART_RX, cecr_subblock, QE_CR_PROTOCOL_ETHERNET,
1490 0);
1491 uccf->stopped_rx = 0;
1492
1493 return 0;
1494 }
1495
1496 static int ugeth_enable(struct ucc_geth_private *ugeth, enum comm_dir mode)
1497 {
1498 struct ucc_fast_private *uccf;
1499 int enabled_tx, enabled_rx;
1500
1501 uccf = ugeth->uccf;
1502
1503 /* check if the UCC number is in range. */
1504 if (ugeth->ug_info->uf_info.ucc_num >= UCC_MAX_NUM) {
1505 if (netif_msg_probe(ugeth))
1506 pr_err("ucc_num out of range\n");
1507 return -EINVAL;
1508 }
1509
1510 enabled_tx = uccf->enabled_tx;
1511 enabled_rx = uccf->enabled_rx;
1512
1513 /* Get Tx and Rx going again, in case this channel was actively
1514 disabled. */
1515 if ((mode & COMM_DIR_TX) && (!enabled_tx) && uccf->stopped_tx)
1516 ugeth_restart_tx(ugeth);
1517 if ((mode & COMM_DIR_RX) && (!enabled_rx) && uccf->stopped_rx)
1518 ugeth_restart_rx(ugeth);
1519
1520 ucc_fast_enable(uccf, mode); /* OK to do even if not disabled */
1521
1522 return 0;
1523
1524 }
1525
1526 static int ugeth_disable(struct ucc_geth_private *ugeth, enum comm_dir mode)
1527 {
1528 struct ucc_fast_private *uccf;
1529
1530 uccf = ugeth->uccf;
1531
1532 /* check if the UCC number is in range. */
1533 if (ugeth->ug_info->uf_info.ucc_num >= UCC_MAX_NUM) {
1534 if (netif_msg_probe(ugeth))
1535 pr_err("ucc_num out of range\n");
1536 return -EINVAL;
1537 }
1538
1539 /* Stop any transmissions */
1540 if ((mode & COMM_DIR_TX) && uccf->enabled_tx && !uccf->stopped_tx)
1541 ugeth_graceful_stop_tx(ugeth);
1542
1543 /* Stop any receptions */
1544 if ((mode & COMM_DIR_RX) && uccf->enabled_rx && !uccf->stopped_rx)
1545 ugeth_graceful_stop_rx(ugeth);
1546
1547 ucc_fast_disable(ugeth->uccf, mode); /* OK to do even if not enabled */
1548
1549 return 0;
1550 }
1551
1552 static void ugeth_quiesce(struct ucc_geth_private *ugeth)
1553 {
1554 /* Prevent any further xmits, plus detach the device. */
1555 netif_device_detach(ugeth->ndev);
1556
1557 /* Wait for any current xmits to finish. */
1558 netif_tx_disable(ugeth->ndev);
1559
1560 /* Disable the interrupt to avoid NAPI rescheduling. */
1561 disable_irq(ugeth->ug_info->uf_info.irq);
1562
1563 /* Stop NAPI, and possibly wait for its completion. */
1564 napi_disable(&ugeth->napi);
1565 }
1566
1567 static void ugeth_activate(struct ucc_geth_private *ugeth)
1568 {
1569 napi_enable(&ugeth->napi);
1570 enable_irq(ugeth->ug_info->uf_info.irq);
1571 netif_device_attach(ugeth->ndev);
1572 }
1573
1574 /* Called every time the controller might need to be made
1575 * aware of new link state. The PHY code conveys this
1576 * information through variables in the ugeth structure, and this
1577 * function converts those variables into the appropriate
1578 * register values, and can bring down the device if needed.
1579 */
1580
1581 static void adjust_link(struct net_device *dev)
1582 {
1583 struct ucc_geth_private *ugeth = netdev_priv(dev);
1584 struct ucc_geth __iomem *ug_regs;
1585 struct ucc_fast __iomem *uf_regs;
1586 struct phy_device *phydev = ugeth->phydev;
1587 int new_state = 0;
1588
1589 ug_regs = ugeth->ug_regs;
1590 uf_regs = ugeth->uccf->uf_regs;
1591
1592 if (phydev->link) {
1593 u32 tempval = in_be32(&ug_regs->maccfg2);
1594 u32 upsmr = in_be32(&uf_regs->upsmr);
1595 /* Now we make sure that we can be in full duplex mode.
1596 * If not, we operate in half-duplex mode. */
1597 if (phydev->duplex != ugeth->oldduplex) {
1598 new_state = 1;
1599 if (!(phydev->duplex))
1600 tempval &= ~(MACCFG2_FDX);
1601 else
1602 tempval |= MACCFG2_FDX;
1603 ugeth->oldduplex = phydev->duplex;
1604 }
1605
1606 if (phydev->speed != ugeth->oldspeed) {
1607 new_state = 1;
1608 switch (phydev->speed) {
1609 case SPEED_1000:
1610 tempval = ((tempval &
1611 ~(MACCFG2_INTERFACE_MODE_MASK)) |
1612 MACCFG2_INTERFACE_MODE_BYTE);
1613 break;
1614 case SPEED_100:
1615 case SPEED_10:
1616 tempval = ((tempval &
1617 ~(MACCFG2_INTERFACE_MODE_MASK)) |
1618 MACCFG2_INTERFACE_MODE_NIBBLE);
1619 /* if reduced mode, re-set UPSMR.R10M */
1620 if ((ugeth->phy_interface == PHY_INTERFACE_MODE_RMII) ||
1621 (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII) ||
1622 (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII_ID) ||
1623 (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII_RXID) ||
1624 (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII_TXID) ||
1625 (ugeth->phy_interface == PHY_INTERFACE_MODE_RTBI)) {
1626 if (phydev->speed == SPEED_10)
1627 upsmr |= UCC_GETH_UPSMR_R10M;
1628 else
1629 upsmr &= ~UCC_GETH_UPSMR_R10M;
1630 }
1631 break;
1632 default:
1633 if (netif_msg_link(ugeth))
1634 pr_warn(
1635 "%s: Ack! Speed (%d) is not 10/100/1000!",
1636 dev->name, phydev->speed);
1637 break;
1638 }
1639 ugeth->oldspeed = phydev->speed;
1640 }
1641
1642 if (!ugeth->oldlink) {
1643 new_state = 1;
1644 ugeth->oldlink = 1;
1645 }
1646
1647 if (new_state) {
1648 /*
1649 * To change the MAC configuration we need to disable
1650 * the controller. To do so, we have to either grab
1651 * ugeth->lock, which is a bad idea since 'graceful
1652 * stop' commands might take quite a while, or we can
1653 * quiesce driver's activity.
1654 */
1655 ugeth_quiesce(ugeth);
1656 ugeth_disable(ugeth, COMM_DIR_RX_AND_TX);
1657
1658 out_be32(&ug_regs->maccfg2, tempval);
1659 out_be32(&uf_regs->upsmr, upsmr);
1660
1661 ugeth_enable(ugeth, COMM_DIR_RX_AND_TX);
1662 ugeth_activate(ugeth);
1663 }
1664 } else if (ugeth->oldlink) {
1665 new_state = 1;
1666 ugeth->oldlink = 0;
1667 ugeth->oldspeed = 0;
1668 ugeth->oldduplex = -1;
1669 }
1670
1671 if (new_state && netif_msg_link(ugeth))
1672 phy_print_status(phydev);
1673 }
1674
1675 /* Initialize TBI PHY interface for communicating with the
1676 * SERDES lynx PHY on the chip. We communicate with this PHY
1677 * through the MDIO bus on each controller, treating it as a
1678 * "normal" PHY at the address found in the UTBIPA register. We assume
1679 * that the UTBIPA register is valid. Either the MDIO bus code will set
1680 * it to a value that doesn't conflict with other PHYs on the bus, or the
1681 * value doesn't matter, as there are no other PHYs on the bus.
1682 */
1683 static void uec_configure_serdes(struct net_device *dev)
1684 {
1685 struct ucc_geth_private *ugeth = netdev_priv(dev);
1686 struct ucc_geth_info *ug_info = ugeth->ug_info;
1687 struct phy_device *tbiphy;
1688
1689 if (!ug_info->tbi_node) {
1690 dev_warn(&dev->dev, "SGMII mode requires that the device "
1691 "tree specify a tbi-handle\n");
1692 return;
1693 }
1694
1695 tbiphy = of_phy_find_device(ug_info->tbi_node);
1696 if (!tbiphy) {
1697 dev_err(&dev->dev, "error: Could not get TBI device\n");
1698 return;
1699 }
1700
1701 /*
1702 * If the link is already up, we must already be ok, and don't need to
1703 * configure and reset the TBI<->SerDes link. Maybe U-Boot configured
1704 * everything for us? Resetting it takes the link down and requires
1705 * several seconds for it to come back.
1706 */
1707 if (phy_read(tbiphy, ENET_TBI_MII_SR) & TBISR_LSTATUS) {
1708 put_device(&tbiphy->mdio.dev);
1709 return;
1710 }
1711
1712 /* Single clk mode, mii mode off(for serdes communication) */
1713 phy_write(tbiphy, ENET_TBI_MII_ANA, TBIANA_SETTINGS);
1714
1715 phy_write(tbiphy, ENET_TBI_MII_TBICON, TBICON_CLK_SELECT);
1716
1717 phy_write(tbiphy, ENET_TBI_MII_CR, TBICR_SETTINGS);
1718
1719 put_device(&tbiphy->mdio.dev);
1720 }
1721
1722 /* Configure the PHY for dev.
1723 * returns 0 if success. -1 if failure
1724 */
1725 static int init_phy(struct net_device *dev)
1726 {
1727 struct ucc_geth_private *priv = netdev_priv(dev);
1728 struct ucc_geth_info *ug_info = priv->ug_info;
1729 struct phy_device *phydev;
1730
1731 priv->oldlink = 0;
1732 priv->oldspeed = 0;
1733 priv->oldduplex = -1;
1734
1735 phydev = of_phy_connect(dev, ug_info->phy_node, &adjust_link, 0,
1736 priv->phy_interface);
1737 if (!phydev) {
1738 dev_err(&dev->dev, "Could not attach to PHY\n");
1739 return -ENODEV;
1740 }
1741
1742 if (priv->phy_interface == PHY_INTERFACE_MODE_SGMII)
1743 uec_configure_serdes(dev);
1744
1745 phydev->supported &= (SUPPORTED_MII |
1746 SUPPORTED_Autoneg |
1747 ADVERTISED_10baseT_Half |
1748 ADVERTISED_10baseT_Full |
1749 ADVERTISED_100baseT_Half |
1750 ADVERTISED_100baseT_Full);
1751
1752 if (priv->max_speed == SPEED_1000)
1753 phydev->supported |= ADVERTISED_1000baseT_Full;
1754
1755 phydev->advertising = phydev->supported;
1756
1757 priv->phydev = phydev;
1758
1759 return 0;
1760 }
1761
1762 static void ugeth_dump_regs(struct ucc_geth_private *ugeth)
1763 {
1764 #ifdef DEBUG
1765 ucc_fast_dump_regs(ugeth->uccf);
1766 dump_regs(ugeth);
1767 dump_bds(ugeth);
1768 #endif
1769 }
1770
1771 static int ugeth_82xx_filtering_clear_all_addr_in_hash(struct ucc_geth_private *
1772 ugeth,
1773 enum enet_addr_type
1774 enet_addr_type)
1775 {
1776 struct ucc_geth_82xx_address_filtering_pram __iomem *p_82xx_addr_filt;
1777 struct ucc_fast_private *uccf;
1778 enum comm_dir comm_dir;
1779 struct list_head *p_lh;
1780 u16 i, num;
1781 u32 __iomem *addr_h;
1782 u32 __iomem *addr_l;
1783 u8 *p_counter;
1784
1785 uccf = ugeth->uccf;
1786
1787 p_82xx_addr_filt =
1788 (struct ucc_geth_82xx_address_filtering_pram __iomem *)
1789 ugeth->p_rx_glbl_pram->addressfiltering;
1790
1791 if (enet_addr_type == ENET_ADDR_TYPE_GROUP) {
1792 addr_h = &(p_82xx_addr_filt->gaddr_h);
1793 addr_l = &(p_82xx_addr_filt->gaddr_l);
1794 p_lh = &ugeth->group_hash_q;
1795 p_counter = &(ugeth->numGroupAddrInHash);
1796 } else if (enet_addr_type == ENET_ADDR_TYPE_INDIVIDUAL) {
1797 addr_h = &(p_82xx_addr_filt->iaddr_h);
1798 addr_l = &(p_82xx_addr_filt->iaddr_l);
1799 p_lh = &ugeth->ind_hash_q;
1800 p_counter = &(ugeth->numIndAddrInHash);
1801 } else
1802 return -EINVAL;
1803
1804 comm_dir = 0;
1805 if (uccf->enabled_tx)
1806 comm_dir |= COMM_DIR_TX;
1807 if (uccf->enabled_rx)
1808 comm_dir |= COMM_DIR_RX;
1809 if (comm_dir)
1810 ugeth_disable(ugeth, comm_dir);
1811
1812 /* Clear the hash table. */
1813 out_be32(addr_h, 0x00000000);
1814 out_be32(addr_l, 0x00000000);
1815
1816 if (!p_lh)
1817 return 0;
1818
1819 num = *p_counter;
1820
1821 /* Delete all remaining CQ elements */
1822 for (i = 0; i < num; i++)
1823 put_enet_addr_container(ENET_ADDR_CONT_ENTRY(dequeue(p_lh)));
1824
1825 *p_counter = 0;
1826
1827 if (comm_dir)
1828 ugeth_enable(ugeth, comm_dir);
1829
1830 return 0;
1831 }
1832
1833 static int ugeth_82xx_filtering_clear_addr_in_paddr(struct ucc_geth_private *ugeth,
1834 u8 paddr_num)
1835 {
1836 ugeth->indAddrRegUsed[paddr_num] = 0; /* mark this paddr as not used */
1837 return hw_clear_addr_in_paddr(ugeth, paddr_num);/* clear in hardware */
1838 }
1839
1840 static void ucc_geth_free_rx(struct ucc_geth_private *ugeth)
1841 {
1842 struct ucc_geth_info *ug_info;
1843 struct ucc_fast_info *uf_info;
1844 u16 i, j;
1845 u8 __iomem *bd;
1846
1847
1848 ug_info = ugeth->ug_info;
1849 uf_info = &ug_info->uf_info;
1850
1851 for (i = 0; i < ugeth->ug_info->numQueuesRx; i++) {
1852 if (ugeth->p_rx_bd_ring[i]) {
1853 /* Return existing data buffers in ring */
1854 bd = ugeth->p_rx_bd_ring[i];
1855 for (j = 0; j < ugeth->ug_info->bdRingLenRx[i]; j++) {
1856 if (ugeth->rx_skbuff[i][j]) {
1857 dma_unmap_single(ugeth->dev,
1858 in_be32(&((struct qe_bd __iomem *)bd)->buf),
1859 ugeth->ug_info->
1860 uf_info.max_rx_buf_length +
1861 UCC_GETH_RX_DATA_BUF_ALIGNMENT,
1862 DMA_FROM_DEVICE);
1863 dev_kfree_skb_any(
1864 ugeth->rx_skbuff[i][j]);
1865 ugeth->rx_skbuff[i][j] = NULL;
1866 }
1867 bd += sizeof(struct qe_bd);
1868 }
1869
1870 kfree(ugeth->rx_skbuff[i]);
1871
1872 if (ugeth->ug_info->uf_info.bd_mem_part ==
1873 MEM_PART_SYSTEM)
1874 kfree((void *)ugeth->rx_bd_ring_offset[i]);
1875 else if (ugeth->ug_info->uf_info.bd_mem_part ==
1876 MEM_PART_MURAM)
1877 qe_muram_free(ugeth->rx_bd_ring_offset[i]);
1878 ugeth->p_rx_bd_ring[i] = NULL;
1879 }
1880 }
1881
1882 }
1883
1884 static void ucc_geth_free_tx(struct ucc_geth_private *ugeth)
1885 {
1886 struct ucc_geth_info *ug_info;
1887 struct ucc_fast_info *uf_info;
1888 u16 i, j;
1889 u8 __iomem *bd;
1890
1891 ug_info = ugeth->ug_info;
1892 uf_info = &ug_info->uf_info;
1893
1894 for (i = 0; i < ugeth->ug_info->numQueuesTx; i++) {
1895 bd = ugeth->p_tx_bd_ring[i];
1896 if (!bd)
1897 continue;
1898 for (j = 0; j < ugeth->ug_info->bdRingLenTx[i]; j++) {
1899 if (ugeth->tx_skbuff[i][j]) {
1900 dma_unmap_single(ugeth->dev,
1901 in_be32(&((struct qe_bd __iomem *)bd)->buf),
1902 (in_be32((u32 __iomem *)bd) &
1903 BD_LENGTH_MASK),
1904 DMA_TO_DEVICE);
1905 dev_kfree_skb_any(ugeth->tx_skbuff[i][j]);
1906 ugeth->tx_skbuff[i][j] = NULL;
1907 }
1908 }
1909
1910 kfree(ugeth->tx_skbuff[i]);
1911
1912 if (ugeth->p_tx_bd_ring[i]) {
1913 if (ugeth->ug_info->uf_info.bd_mem_part ==
1914 MEM_PART_SYSTEM)
1915 kfree((void *)ugeth->tx_bd_ring_offset[i]);
1916 else if (ugeth->ug_info->uf_info.bd_mem_part ==
1917 MEM_PART_MURAM)
1918 qe_muram_free(ugeth->tx_bd_ring_offset[i]);
1919 ugeth->p_tx_bd_ring[i] = NULL;
1920 }
1921 }
1922
1923 }
1924
1925 static void ucc_geth_memclean(struct ucc_geth_private *ugeth)
1926 {
1927 if (!ugeth)
1928 return;
1929
1930 if (ugeth->uccf) {
1931 ucc_fast_free(ugeth->uccf);
1932 ugeth->uccf = NULL;
1933 }
1934
1935 if (ugeth->p_thread_data_tx) {
1936 qe_muram_free(ugeth->thread_dat_tx_offset);
1937 ugeth->p_thread_data_tx = NULL;
1938 }
1939 if (ugeth->p_thread_data_rx) {
1940 qe_muram_free(ugeth->thread_dat_rx_offset);
1941 ugeth->p_thread_data_rx = NULL;
1942 }
1943 if (ugeth->p_exf_glbl_param) {
1944 qe_muram_free(ugeth->exf_glbl_param_offset);
1945 ugeth->p_exf_glbl_param = NULL;
1946 }
1947 if (ugeth->p_rx_glbl_pram) {
1948 qe_muram_free(ugeth->rx_glbl_pram_offset);
1949 ugeth->p_rx_glbl_pram = NULL;
1950 }
1951 if (ugeth->p_tx_glbl_pram) {
1952 qe_muram_free(ugeth->tx_glbl_pram_offset);
1953 ugeth->p_tx_glbl_pram = NULL;
1954 }
1955 if (ugeth->p_send_q_mem_reg) {
1956 qe_muram_free(ugeth->send_q_mem_reg_offset);
1957 ugeth->p_send_q_mem_reg = NULL;
1958 }
1959 if (ugeth->p_scheduler) {
1960 qe_muram_free(ugeth->scheduler_offset);
1961 ugeth->p_scheduler = NULL;
1962 }
1963 if (ugeth->p_tx_fw_statistics_pram) {
1964 qe_muram_free(ugeth->tx_fw_statistics_pram_offset);
1965 ugeth->p_tx_fw_statistics_pram = NULL;
1966 }
1967 if (ugeth->p_rx_fw_statistics_pram) {
1968 qe_muram_free(ugeth->rx_fw_statistics_pram_offset);
1969 ugeth->p_rx_fw_statistics_pram = NULL;
1970 }
1971 if (ugeth->p_rx_irq_coalescing_tbl) {
1972 qe_muram_free(ugeth->rx_irq_coalescing_tbl_offset);
1973 ugeth->p_rx_irq_coalescing_tbl = NULL;
1974 }
1975 if (ugeth->p_rx_bd_qs_tbl) {
1976 qe_muram_free(ugeth->rx_bd_qs_tbl_offset);
1977 ugeth->p_rx_bd_qs_tbl = NULL;
1978 }
1979 if (ugeth->p_init_enet_param_shadow) {
1980 return_init_enet_entries(ugeth,
1981 &(ugeth->p_init_enet_param_shadow->
1982 rxthread[0]),
1983 ENET_INIT_PARAM_MAX_ENTRIES_RX,
1984 ugeth->ug_info->riscRx, 1);
1985 return_init_enet_entries(ugeth,
1986 &(ugeth->p_init_enet_param_shadow->
1987 txthread[0]),
1988 ENET_INIT_PARAM_MAX_ENTRIES_TX,
1989 ugeth->ug_info->riscTx, 0);
1990 kfree(ugeth->p_init_enet_param_shadow);
1991 ugeth->p_init_enet_param_shadow = NULL;
1992 }
1993 ucc_geth_free_tx(ugeth);
1994 ucc_geth_free_rx(ugeth);
1995 while (!list_empty(&ugeth->group_hash_q))
1996 put_enet_addr_container(ENET_ADDR_CONT_ENTRY
1997 (dequeue(&ugeth->group_hash_q)));
1998 while (!list_empty(&ugeth->ind_hash_q))
1999 put_enet_addr_container(ENET_ADDR_CONT_ENTRY
2000 (dequeue(&ugeth->ind_hash_q)));
2001 if (ugeth->ug_regs) {
2002 iounmap(ugeth->ug_regs);
2003 ugeth->ug_regs = NULL;
2004 }
2005 }
2006
2007 static void ucc_geth_set_multi(struct net_device *dev)
2008 {
2009 struct ucc_geth_private *ugeth;
2010 struct netdev_hw_addr *ha;
2011 struct ucc_fast __iomem *uf_regs;
2012 struct ucc_geth_82xx_address_filtering_pram __iomem *p_82xx_addr_filt;
2013
2014 ugeth = netdev_priv(dev);
2015
2016 uf_regs = ugeth->uccf->uf_regs;
2017
2018 if (dev->flags & IFF_PROMISC) {
2019 setbits32(&uf_regs->upsmr, UCC_GETH_UPSMR_PRO);
2020 } else {
2021 clrbits32(&uf_regs->upsmr, UCC_GETH_UPSMR_PRO);
2022
2023 p_82xx_addr_filt =
2024 (struct ucc_geth_82xx_address_filtering_pram __iomem *) ugeth->
2025 p_rx_glbl_pram->addressfiltering;
2026
2027 if (dev->flags & IFF_ALLMULTI) {
2028 /* Catch all multicast addresses, so set the
2029 * filter to all 1's.
2030 */
2031 out_be32(&p_82xx_addr_filt->gaddr_h, 0xffffffff);
2032 out_be32(&p_82xx_addr_filt->gaddr_l, 0xffffffff);
2033 } else {
2034 /* Clear filter and add the addresses in the list.
2035 */
2036 out_be32(&p_82xx_addr_filt->gaddr_h, 0x0);
2037 out_be32(&p_82xx_addr_filt->gaddr_l, 0x0);
2038
2039 netdev_for_each_mc_addr(ha, dev) {
2040 /* Ask CPM to run CRC and set bit in
2041 * filter mask.
2042 */
2043 hw_add_addr_in_hash(ugeth, ha->addr);
2044 }
2045 }
2046 }
2047 }
2048
2049 static void ucc_geth_stop(struct ucc_geth_private *ugeth)
2050 {
2051 struct ucc_geth __iomem *ug_regs = ugeth->ug_regs;
2052 struct phy_device *phydev = ugeth->phydev;
2053
2054 ugeth_vdbg("%s: IN", __func__);
2055
2056 /*
2057 * Tell the kernel the link is down.
2058 * Must be done before disabling the controller
2059 * or deadlock may happen.
2060 */
2061 phy_stop(phydev);
2062
2063 /* Disable the controller */
2064 ugeth_disable(ugeth, COMM_DIR_RX_AND_TX);
2065
2066 /* Mask all interrupts */
2067 out_be32(ugeth->uccf->p_uccm, 0x00000000);
2068
2069 /* Clear all interrupts */
2070 out_be32(ugeth->uccf->p_ucce, 0xffffffff);
2071
2072 /* Disable Rx and Tx */
2073 clrbits32(&ug_regs->maccfg1, MACCFG1_ENABLE_RX | MACCFG1_ENABLE_TX);
2074
2075 ucc_geth_memclean(ugeth);
2076 }
2077
2078 static int ucc_struct_init(struct ucc_geth_private *ugeth)
2079 {
2080 struct ucc_geth_info *ug_info;
2081 struct ucc_fast_info *uf_info;
2082 int i;
2083
2084 ug_info = ugeth->ug_info;
2085 uf_info = &ug_info->uf_info;
2086
2087 if (!((uf_info->bd_mem_part == MEM_PART_SYSTEM) ||
2088 (uf_info->bd_mem_part == MEM_PART_MURAM))) {
2089 if (netif_msg_probe(ugeth))
2090 pr_err("Bad memory partition value\n");
2091 return -EINVAL;
2092 }
2093
2094 /* Rx BD lengths */
2095 for (i = 0; i < ug_info->numQueuesRx; i++) {
2096 if ((ug_info->bdRingLenRx[i] < UCC_GETH_RX_BD_RING_SIZE_MIN) ||
2097 (ug_info->bdRingLenRx[i] %
2098 UCC_GETH_RX_BD_RING_SIZE_ALIGNMENT)) {
2099 if (netif_msg_probe(ugeth))
2100 pr_err("Rx BD ring length must be multiple of 4, no smaller than 8\n");
2101 return -EINVAL;
2102 }
2103 }
2104
2105 /* Tx BD lengths */
2106 for (i = 0; i < ug_info->numQueuesTx; i++) {
2107 if (ug_info->bdRingLenTx[i] < UCC_GETH_TX_BD_RING_SIZE_MIN) {
2108 if (netif_msg_probe(ugeth))
2109 pr_err("Tx BD ring length must be no smaller than 2\n");
2110 return -EINVAL;
2111 }
2112 }
2113
2114 /* mrblr */
2115 if ((uf_info->max_rx_buf_length == 0) ||
2116 (uf_info->max_rx_buf_length % UCC_GETH_MRBLR_ALIGNMENT)) {
2117 if (netif_msg_probe(ugeth))
2118 pr_err("max_rx_buf_length must be non-zero multiple of 128\n");
2119 return -EINVAL;
2120 }
2121
2122 /* num Tx queues */
2123 if (ug_info->numQueuesTx > NUM_TX_QUEUES) {
2124 if (netif_msg_probe(ugeth))
2125 pr_err("number of tx queues too large\n");
2126 return -EINVAL;
2127 }
2128
2129 /* num Rx queues */
2130 if (ug_info->numQueuesRx > NUM_RX_QUEUES) {
2131 if (netif_msg_probe(ugeth))
2132 pr_err("number of rx queues too large\n");
2133 return -EINVAL;
2134 }
2135
2136 /* l2qt */
2137 for (i = 0; i < UCC_GETH_VLAN_PRIORITY_MAX; i++) {
2138 if (ug_info->l2qt[i] >= ug_info->numQueuesRx) {
2139 if (netif_msg_probe(ugeth))
2140 pr_err("VLAN priority table entry must not be larger than number of Rx queues\n");
2141 return -EINVAL;
2142 }
2143 }
2144
2145 /* l3qt */
2146 for (i = 0; i < UCC_GETH_IP_PRIORITY_MAX; i++) {
2147 if (ug_info->l3qt[i] >= ug_info->numQueuesRx) {
2148 if (netif_msg_probe(ugeth))
2149 pr_err("IP priority table entry must not be larger than number of Rx queues\n");
2150 return -EINVAL;
2151 }
2152 }
2153
2154 if (ug_info->cam && !ug_info->ecamptr) {
2155 if (netif_msg_probe(ugeth))
2156 pr_err("If cam mode is chosen, must supply cam ptr\n");
2157 return -EINVAL;
2158 }
2159
2160 if ((ug_info->numStationAddresses !=
2161 UCC_GETH_NUM_OF_STATION_ADDRESSES_1) &&
2162 ug_info->rxExtendedFiltering) {
2163 if (netif_msg_probe(ugeth))
2164 pr_err("Number of station addresses greater than 1 not allowed in extended parsing mode\n");
2165 return -EINVAL;
2166 }
2167
2168 /* Generate uccm_mask for receive */
2169 uf_info->uccm_mask = ug_info->eventRegMask & UCCE_OTHER;/* Errors */
2170 for (i = 0; i < ug_info->numQueuesRx; i++)
2171 uf_info->uccm_mask |= (UCC_GETH_UCCE_RXF0 << i);
2172
2173 for (i = 0; i < ug_info->numQueuesTx; i++)
2174 uf_info->uccm_mask |= (UCC_GETH_UCCE_TXB0 << i);
2175 /* Initialize the general fast UCC block. */
2176 if (ucc_fast_init(uf_info, &ugeth->uccf)) {
2177 if (netif_msg_probe(ugeth))
2178 pr_err("Failed to init uccf\n");
2179 return -ENOMEM;
2180 }
2181
2182 /* read the number of risc engines, update the riscTx and riscRx
2183 * if there are 4 riscs in QE
2184 */
2185 if (qe_get_num_of_risc() == 4) {
2186 ug_info->riscTx = QE_RISC_ALLOCATION_FOUR_RISCS;
2187 ug_info->riscRx = QE_RISC_ALLOCATION_FOUR_RISCS;
2188 }
2189
2190 ugeth->ug_regs = ioremap(uf_info->regs, sizeof(*ugeth->ug_regs));
2191 if (!ugeth->ug_regs) {
2192 if (netif_msg_probe(ugeth))
2193 pr_err("Failed to ioremap regs\n");
2194 return -ENOMEM;
2195 }
2196
2197 return 0;
2198 }
2199
2200 static int ucc_geth_alloc_tx(struct ucc_geth_private *ugeth)
2201 {
2202 struct ucc_geth_info *ug_info;
2203 struct ucc_fast_info *uf_info;
2204 int length;
2205 u16 i, j;
2206 u8 __iomem *bd;
2207
2208 ug_info = ugeth->ug_info;
2209 uf_info = &ug_info->uf_info;
2210
2211 /* Allocate Tx bds */
2212 for (j = 0; j < ug_info->numQueuesTx; j++) {
2213 /* Allocate in multiple of
2214 UCC_GETH_TX_BD_RING_SIZE_MEMORY_ALIGNMENT,
2215 according to spec */
2216 length = ((ug_info->bdRingLenTx[j] * sizeof(struct qe_bd))
2217 / UCC_GETH_TX_BD_RING_SIZE_MEMORY_ALIGNMENT)
2218 * UCC_GETH_TX_BD_RING_SIZE_MEMORY_ALIGNMENT;
2219 if ((ug_info->bdRingLenTx[j] * sizeof(struct qe_bd)) %
2220 UCC_GETH_TX_BD_RING_SIZE_MEMORY_ALIGNMENT)
2221 length += UCC_GETH_TX_BD_RING_SIZE_MEMORY_ALIGNMENT;
2222 if (uf_info->bd_mem_part == MEM_PART_SYSTEM) {
2223 u32 align = 4;
2224 if (UCC_GETH_TX_BD_RING_ALIGNMENT > 4)
2225 align = UCC_GETH_TX_BD_RING_ALIGNMENT;
2226 ugeth->tx_bd_ring_offset[j] =
2227 (u32) kmalloc((u32) (length + align), GFP_KERNEL);
2228
2229 if (ugeth->tx_bd_ring_offset[j] != 0)
2230 ugeth->p_tx_bd_ring[j] =
2231 (u8 __iomem *)((ugeth->tx_bd_ring_offset[j] +
2232 align) & ~(align - 1));
2233 } else if (uf_info->bd_mem_part == MEM_PART_MURAM) {
2234 ugeth->tx_bd_ring_offset[j] =
2235 qe_muram_alloc(length,
2236 UCC_GETH_TX_BD_RING_ALIGNMENT);
2237 if (!IS_ERR_VALUE(ugeth->tx_bd_ring_offset[j]))
2238 ugeth->p_tx_bd_ring[j] =
2239 (u8 __iomem *) qe_muram_addr(ugeth->
2240 tx_bd_ring_offset[j]);
2241 }
2242 if (!ugeth->p_tx_bd_ring[j]) {
2243 if (netif_msg_ifup(ugeth))
2244 pr_err("Can not allocate memory for Tx bd rings\n");
2245 return -ENOMEM;
2246 }
2247 /* Zero unused end of bd ring, according to spec */
2248 memset_io((void __iomem *)(ugeth->p_tx_bd_ring[j] +
2249 ug_info->bdRingLenTx[j] * sizeof(struct qe_bd)), 0,
2250 length - ug_info->bdRingLenTx[j] * sizeof(struct qe_bd));
2251 }
2252
2253 /* Init Tx bds */
2254 for (j = 0; j < ug_info->numQueuesTx; j++) {
2255 /* Setup the skbuff rings */
2256 ugeth->tx_skbuff[j] = kmalloc(sizeof(struct sk_buff *) *
2257 ugeth->ug_info->bdRingLenTx[j],
2258 GFP_KERNEL);
2259
2260 if (ugeth->tx_skbuff[j] == NULL) {
2261 if (netif_msg_ifup(ugeth))
2262 pr_err("Could not allocate tx_skbuff\n");
2263 return -ENOMEM;
2264 }
2265
2266 for (i = 0; i < ugeth->ug_info->bdRingLenTx[j]; i++)
2267 ugeth->tx_skbuff[j][i] = NULL;
2268
2269 ugeth->skb_curtx[j] = ugeth->skb_dirtytx[j] = 0;
2270 bd = ugeth->confBd[j] = ugeth->txBd[j] = ugeth->p_tx_bd_ring[j];
2271 for (i = 0; i < ug_info->bdRingLenTx[j]; i++) {
2272 /* clear bd buffer */
2273 out_be32(&((struct qe_bd __iomem *)bd)->buf, 0);
2274 /* set bd status and length */
2275 out_be32((u32 __iomem *)bd, 0);
2276 bd += sizeof(struct qe_bd);
2277 }
2278 bd -= sizeof(struct qe_bd);
2279 /* set bd status and length */
2280 out_be32((u32 __iomem *)bd, T_W); /* for last BD set Wrap bit */
2281 }
2282
2283 return 0;
2284 }
2285
2286 static int ucc_geth_alloc_rx(struct ucc_geth_private *ugeth)
2287 {
2288 struct ucc_geth_info *ug_info;
2289 struct ucc_fast_info *uf_info;
2290 int length;
2291 u16 i, j;
2292 u8 __iomem *bd;
2293
2294 ug_info = ugeth->ug_info;
2295 uf_info = &ug_info->uf_info;
2296
2297 /* Allocate Rx bds */
2298 for (j = 0; j < ug_info->numQueuesRx; j++) {
2299 length = ug_info->bdRingLenRx[j] * sizeof(struct qe_bd);
2300 if (uf_info->bd_mem_part == MEM_PART_SYSTEM) {
2301 u32 align = 4;
2302 if (UCC_GETH_RX_BD_RING_ALIGNMENT > 4)
2303 align = UCC_GETH_RX_BD_RING_ALIGNMENT;
2304 ugeth->rx_bd_ring_offset[j] =
2305 (u32) kmalloc((u32) (length + align), GFP_KERNEL);
2306 if (ugeth->rx_bd_ring_offset[j] != 0)
2307 ugeth->p_rx_bd_ring[j] =
2308 (u8 __iomem *)((ugeth->rx_bd_ring_offset[j] +
2309 align) & ~(align - 1));
2310 } else if (uf_info->bd_mem_part == MEM_PART_MURAM) {
2311 ugeth->rx_bd_ring_offset[j] =
2312 qe_muram_alloc(length,
2313 UCC_GETH_RX_BD_RING_ALIGNMENT);
2314 if (!IS_ERR_VALUE(ugeth->rx_bd_ring_offset[j]))
2315 ugeth->p_rx_bd_ring[j] =
2316 (u8 __iomem *) qe_muram_addr(ugeth->
2317 rx_bd_ring_offset[j]);
2318 }
2319 if (!ugeth->p_rx_bd_ring[j]) {
2320 if (netif_msg_ifup(ugeth))
2321 pr_err("Can not allocate memory for Rx bd rings\n");
2322 return -ENOMEM;
2323 }
2324 }
2325
2326 /* Init Rx bds */
2327 for (j = 0; j < ug_info->numQueuesRx; j++) {
2328 /* Setup the skbuff rings */
2329 ugeth->rx_skbuff[j] = kmalloc(sizeof(struct sk_buff *) *
2330 ugeth->ug_info->bdRingLenRx[j],
2331 GFP_KERNEL);
2332
2333 if (ugeth->rx_skbuff[j] == NULL) {
2334 if (netif_msg_ifup(ugeth))
2335 pr_err("Could not allocate rx_skbuff\n");
2336 return -ENOMEM;
2337 }
2338
2339 for (i = 0; i < ugeth->ug_info->bdRingLenRx[j]; i++)
2340 ugeth->rx_skbuff[j][i] = NULL;
2341
2342 ugeth->skb_currx[j] = 0;
2343 bd = ugeth->rxBd[j] = ugeth->p_rx_bd_ring[j];
2344 for (i = 0; i < ug_info->bdRingLenRx[j]; i++) {
2345 /* set bd status and length */
2346 out_be32((u32 __iomem *)bd, R_I);
2347 /* clear bd buffer */
2348 out_be32(&((struct qe_bd __iomem *)bd)->buf, 0);
2349 bd += sizeof(struct qe_bd);
2350 }
2351 bd -= sizeof(struct qe_bd);
2352 /* set bd status and length */
2353 out_be32((u32 __iomem *)bd, R_W); /* for last BD set Wrap bit */
2354 }
2355
2356 return 0;
2357 }
2358
2359 static int ucc_geth_startup(struct ucc_geth_private *ugeth)
2360 {
2361 struct ucc_geth_82xx_address_filtering_pram __iomem *p_82xx_addr_filt;
2362 struct ucc_geth_init_pram __iomem *p_init_enet_pram;
2363 struct ucc_fast_private *uccf;
2364 struct ucc_geth_info *ug_info;
2365 struct ucc_fast_info *uf_info;
2366 struct ucc_fast __iomem *uf_regs;
2367 struct ucc_geth __iomem *ug_regs;
2368 int ret_val = -EINVAL;
2369 u32 remoder = UCC_GETH_REMODER_INIT;
2370 u32 init_enet_pram_offset, cecr_subblock, command;
2371 u32 ifstat, i, j, size, l2qt, l3qt;
2372 u16 temoder = UCC_GETH_TEMODER_INIT;
2373 u16 test;
2374 u8 function_code = 0;
2375 u8 __iomem *endOfRing;
2376 u8 numThreadsRxNumerical, numThreadsTxNumerical;
2377
2378 ugeth_vdbg("%s: IN", __func__);
2379 uccf = ugeth->uccf;
2380 ug_info = ugeth->ug_info;
2381 uf_info = &ug_info->uf_info;
2382 uf_regs = uccf->uf_regs;
2383 ug_regs = ugeth->ug_regs;
2384
2385 switch (ug_info->numThreadsRx) {
2386 case UCC_GETH_NUM_OF_THREADS_1:
2387 numThreadsRxNumerical = 1;
2388 break;
2389 case UCC_GETH_NUM_OF_THREADS_2:
2390 numThreadsRxNumerical = 2;
2391 break;
2392 case UCC_GETH_NUM_OF_THREADS_4:
2393 numThreadsRxNumerical = 4;
2394 break;
2395 case UCC_GETH_NUM_OF_THREADS_6:
2396 numThreadsRxNumerical = 6;
2397 break;
2398 case UCC_GETH_NUM_OF_THREADS_8:
2399 numThreadsRxNumerical = 8;
2400 break;
2401 default:
2402 if (netif_msg_ifup(ugeth))
2403 pr_err("Bad number of Rx threads value\n");
2404 return -EINVAL;
2405 }
2406
2407 switch (ug_info->numThreadsTx) {
2408 case UCC_GETH_NUM_OF_THREADS_1:
2409 numThreadsTxNumerical = 1;
2410 break;
2411 case UCC_GETH_NUM_OF_THREADS_2:
2412 numThreadsTxNumerical = 2;
2413 break;
2414 case UCC_GETH_NUM_OF_THREADS_4:
2415 numThreadsTxNumerical = 4;
2416 break;
2417 case UCC_GETH_NUM_OF_THREADS_6:
2418 numThreadsTxNumerical = 6;
2419 break;
2420 case UCC_GETH_NUM_OF_THREADS_8:
2421 numThreadsTxNumerical = 8;
2422 break;
2423 default:
2424 if (netif_msg_ifup(ugeth))
2425 pr_err("Bad number of Tx threads value\n");
2426 return -EINVAL;
2427 }
2428
2429 /* Calculate rx_extended_features */
2430 ugeth->rx_non_dynamic_extended_features = ug_info->ipCheckSumCheck ||
2431 ug_info->ipAddressAlignment ||
2432 (ug_info->numStationAddresses !=
2433 UCC_GETH_NUM_OF_STATION_ADDRESSES_1);
2434
2435 ugeth->rx_extended_features = ugeth->rx_non_dynamic_extended_features ||
2436 (ug_info->vlanOperationTagged != UCC_GETH_VLAN_OPERATION_TAGGED_NOP) ||
2437 (ug_info->vlanOperationNonTagged !=
2438 UCC_GETH_VLAN_OPERATION_NON_TAGGED_NOP);
2439
2440 init_default_reg_vals(&uf_regs->upsmr,
2441 &ug_regs->maccfg1, &ug_regs->maccfg2);
2442
2443 /* Set UPSMR */
2444 /* For more details see the hardware spec. */
2445 init_rx_parameters(ug_info->bro,
2446 ug_info->rsh, ug_info->pro, &uf_regs->upsmr);
2447
2448 /* We're going to ignore other registers for now, */
2449 /* except as needed to get up and running */
2450
2451 /* Set MACCFG1 */
2452 /* For more details see the hardware spec. */
2453 init_flow_control_params(ug_info->aufc,
2454 ug_info->receiveFlowControl,
2455 ug_info->transmitFlowControl,
2456 ug_info->pausePeriod,
2457 ug_info->extensionField,
2458 &uf_regs->upsmr,
2459 &ug_regs->uempr, &ug_regs->maccfg1);
2460
2461 setbits32(&ug_regs->maccfg1, MACCFG1_ENABLE_RX | MACCFG1_ENABLE_TX);
2462
2463 /* Set IPGIFG */
2464 /* For more details see the hardware spec. */
2465 ret_val = init_inter_frame_gap_params(ug_info->nonBackToBackIfgPart1,
2466 ug_info->nonBackToBackIfgPart2,
2467 ug_info->
2468 miminumInterFrameGapEnforcement,
2469 ug_info->backToBackInterFrameGap,
2470 &ug_regs->ipgifg);
2471 if (ret_val != 0) {
2472 if (netif_msg_ifup(ugeth))
2473 pr_err("IPGIFG initialization parameter too large\n");
2474 return ret_val;
2475 }
2476
2477 /* Set HAFDUP */
2478 /* For more details see the hardware spec. */
2479 ret_val = init_half_duplex_params(ug_info->altBeb,
2480 ug_info->backPressureNoBackoff,
2481 ug_info->noBackoff,
2482 ug_info->excessDefer,
2483 ug_info->altBebTruncation,
2484 ug_info->maxRetransmission,
2485 ug_info->collisionWindow,
2486 &ug_regs->hafdup);
2487 if (ret_val != 0) {
2488 if (netif_msg_ifup(ugeth))
2489 pr_err("Half Duplex initialization parameter too large\n");
2490 return ret_val;
2491 }
2492
2493 /* Set IFSTAT */
2494 /* For more details see the hardware spec. */
2495 /* Read only - resets upon read */
2496 ifstat = in_be32(&ug_regs->ifstat);
2497
2498 /* Clear UEMPR */
2499 /* For more details see the hardware spec. */
2500 out_be32(&ug_regs->uempr, 0);
2501
2502 /* Set UESCR */
2503 /* For more details see the hardware spec. */
2504 init_hw_statistics_gathering_mode((ug_info->statisticsMode &
2505 UCC_GETH_STATISTICS_GATHERING_MODE_HARDWARE),
2506 0, &uf_regs->upsmr, &ug_regs->uescr);
2507
2508 ret_val = ucc_geth_alloc_tx(ugeth);
2509 if (ret_val != 0)
2510 return ret_val;
2511
2512 ret_val = ucc_geth_alloc_rx(ugeth);
2513 if (ret_val != 0)
2514 return ret_val;
2515
2516 /*
2517 * Global PRAM
2518 */
2519 /* Tx global PRAM */
2520 /* Allocate global tx parameter RAM page */
2521 ugeth->tx_glbl_pram_offset =
2522 qe_muram_alloc(sizeof(struct ucc_geth_tx_global_pram),
2523 UCC_GETH_TX_GLOBAL_PRAM_ALIGNMENT);
2524 if (IS_ERR_VALUE(ugeth->tx_glbl_pram_offset)) {
2525 if (netif_msg_ifup(ugeth))
2526 pr_err("Can not allocate DPRAM memory for p_tx_glbl_pram\n");
2527 return -ENOMEM;
2528 }
2529 ugeth->p_tx_glbl_pram =
2530 (struct ucc_geth_tx_global_pram __iomem *) qe_muram_addr(ugeth->
2531 tx_glbl_pram_offset);
2532 /* Zero out p_tx_glbl_pram */
2533 memset_io((void __iomem *)ugeth->p_tx_glbl_pram, 0, sizeof(struct ucc_geth_tx_global_pram));
2534
2535 /* Fill global PRAM */
2536
2537 /* TQPTR */
2538 /* Size varies with number of Tx threads */
2539 ugeth->thread_dat_tx_offset =
2540 qe_muram_alloc(numThreadsTxNumerical *
2541 sizeof(struct ucc_geth_thread_data_tx) +
2542 32 * (numThreadsTxNumerical == 1),
2543 UCC_GETH_THREAD_DATA_ALIGNMENT);
2544 if (IS_ERR_VALUE(ugeth->thread_dat_tx_offset)) {
2545 if (netif_msg_ifup(ugeth))
2546 pr_err("Can not allocate DPRAM memory for p_thread_data_tx\n");
2547 return -ENOMEM;
2548 }
2549
2550 ugeth->p_thread_data_tx =
2551 (struct ucc_geth_thread_data_tx __iomem *) qe_muram_addr(ugeth->
2552 thread_dat_tx_offset);
2553 out_be32(&ugeth->p_tx_glbl_pram->tqptr, ugeth->thread_dat_tx_offset);
2554
2555 /* vtagtable */
2556 for (i = 0; i < UCC_GETH_TX_VTAG_TABLE_ENTRY_MAX; i++)
2557 out_be32(&ugeth->p_tx_glbl_pram->vtagtable[i],
2558 ug_info->vtagtable[i]);
2559
2560 /* iphoffset */
2561 for (i = 0; i < TX_IP_OFFSET_ENTRY_MAX; i++)
2562 out_8(&ugeth->p_tx_glbl_pram->iphoffset[i],
2563 ug_info->iphoffset[i]);
2564
2565 /* SQPTR */
2566 /* Size varies with number of Tx queues */
2567 ugeth->send_q_mem_reg_offset =
2568 qe_muram_alloc(ug_info->numQueuesTx *
2569 sizeof(struct ucc_geth_send_queue_qd),
2570 UCC_GETH_SEND_QUEUE_QUEUE_DESCRIPTOR_ALIGNMENT);
2571 if (IS_ERR_VALUE(ugeth->send_q_mem_reg_offset)) {
2572 if (netif_msg_ifup(ugeth))
2573 pr_err("Can not allocate DPRAM memory for p_send_q_mem_reg\n");
2574 return -ENOMEM;
2575 }
2576
2577 ugeth->p_send_q_mem_reg =
2578 (struct ucc_geth_send_queue_mem_region __iomem *) qe_muram_addr(ugeth->
2579 send_q_mem_reg_offset);
2580 out_be32(&ugeth->p_tx_glbl_pram->sqptr, ugeth->send_q_mem_reg_offset);
2581
2582 /* Setup the table */
2583 /* Assume BD rings are already established */
2584 for (i = 0; i < ug_info->numQueuesTx; i++) {
2585 endOfRing =
2586 ugeth->p_tx_bd_ring[i] + (ug_info->bdRingLenTx[i] -
2587 1) * sizeof(struct qe_bd);
2588 if (ugeth->ug_info->uf_info.bd_mem_part == MEM_PART_SYSTEM) {
2589 out_be32(&ugeth->p_send_q_mem_reg->sqqd[i].bd_ring_base,
2590 (u32) virt_to_phys(ugeth->p_tx_bd_ring[i]));
2591 out_be32(&ugeth->p_send_q_mem_reg->sqqd[i].
2592 last_bd_completed_address,
2593 (u32) virt_to_phys(endOfRing));
2594 } else if (ugeth->ug_info->uf_info.bd_mem_part ==
2595 MEM_PART_MURAM) {
2596 out_be32(&ugeth->p_send_q_mem_reg->sqqd[i].bd_ring_base,
2597 (u32) immrbar_virt_to_phys(ugeth->
2598 p_tx_bd_ring[i]));
2599 out_be32(&ugeth->p_send_q_mem_reg->sqqd[i].
2600 last_bd_completed_address,
2601 (u32) immrbar_virt_to_phys(endOfRing));
2602 }
2603 }
2604
2605 /* schedulerbasepointer */
2606
2607 if (ug_info->numQueuesTx > 1) {
2608 /* scheduler exists only if more than 1 tx queue */
2609 ugeth->scheduler_offset =
2610 qe_muram_alloc(sizeof(struct ucc_geth_scheduler),
2611 UCC_GETH_SCHEDULER_ALIGNMENT);
2612 if (IS_ERR_VALUE(ugeth->scheduler_offset)) {
2613 if (netif_msg_ifup(ugeth))
2614 pr_err("Can not allocate DPRAM memory for p_scheduler\n");
2615 return -ENOMEM;
2616 }
2617
2618 ugeth->p_scheduler =
2619 (struct ucc_geth_scheduler __iomem *) qe_muram_addr(ugeth->
2620 scheduler_offset);
2621 out_be32(&ugeth->p_tx_glbl_pram->schedulerbasepointer,
2622 ugeth->scheduler_offset);
2623 /* Zero out p_scheduler */
2624 memset_io((void __iomem *)ugeth->p_scheduler, 0, sizeof(struct ucc_geth_scheduler));
2625
2626 /* Set values in scheduler */
2627 out_be32(&ugeth->p_scheduler->mblinterval,
2628 ug_info->mblinterval);
2629 out_be16(&ugeth->p_scheduler->nortsrbytetime,
2630 ug_info->nortsrbytetime);
2631 out_8(&ugeth->p_scheduler->fracsiz, ug_info->fracsiz);
2632 out_8(&ugeth->p_scheduler->strictpriorityq,
2633 ug_info->strictpriorityq);
2634 out_8(&ugeth->p_scheduler->txasap, ug_info->txasap);
2635 out_8(&ugeth->p_scheduler->extrabw, ug_info->extrabw);
2636 for (i = 0; i < NUM_TX_QUEUES; i++)
2637 out_8(&ugeth->p_scheduler->weightfactor[i],
2638 ug_info->weightfactor[i]);
2639
2640 /* Set pointers to cpucount registers in scheduler */
2641 ugeth->p_cpucount[0] = &(ugeth->p_scheduler->cpucount0);
2642 ugeth->p_cpucount[1] = &(ugeth->p_scheduler->cpucount1);
2643 ugeth->p_cpucount[2] = &(ugeth->p_scheduler->cpucount2);
2644 ugeth->p_cpucount[3] = &(ugeth->p_scheduler->cpucount3);
2645 ugeth->p_cpucount[4] = &(ugeth->p_scheduler->cpucount4);
2646 ugeth->p_cpucount[5] = &(ugeth->p_scheduler->cpucount5);
2647 ugeth->p_cpucount[6] = &(ugeth->p_scheduler->cpucount6);
2648 ugeth->p_cpucount[7] = &(ugeth->p_scheduler->cpucount7);
2649 }
2650
2651 /* schedulerbasepointer */
2652 /* TxRMON_PTR (statistics) */
2653 if (ug_info->
2654 statisticsMode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_TX) {
2655 ugeth->tx_fw_statistics_pram_offset =
2656 qe_muram_alloc(sizeof
2657 (struct ucc_geth_tx_firmware_statistics_pram),
2658 UCC_GETH_TX_STATISTICS_ALIGNMENT);
2659 if (IS_ERR_VALUE(ugeth->tx_fw_statistics_pram_offset)) {
2660 if (netif_msg_ifup(ugeth))
2661 pr_err("Can not allocate DPRAM memory for p_tx_fw_statistics_pram\n");
2662 return -ENOMEM;
2663 }
2664 ugeth->p_tx_fw_statistics_pram =
2665 (struct ucc_geth_tx_firmware_statistics_pram __iomem *)
2666 qe_muram_addr(ugeth->tx_fw_statistics_pram_offset);
2667 /* Zero out p_tx_fw_statistics_pram */
2668 memset_io((void __iomem *)ugeth->p_tx_fw_statistics_pram,
2669 0, sizeof(struct ucc_geth_tx_firmware_statistics_pram));
2670 }
2671
2672 /* temoder */
2673 /* Already has speed set */
2674
2675 if (ug_info->numQueuesTx > 1)
2676 temoder |= TEMODER_SCHEDULER_ENABLE;
2677 if (ug_info->ipCheckSumGenerate)
2678 temoder |= TEMODER_IP_CHECKSUM_GENERATE;
2679 temoder |= ((ug_info->numQueuesTx - 1) << TEMODER_NUM_OF_QUEUES_SHIFT);
2680 out_be16(&ugeth->p_tx_glbl_pram->temoder, temoder);
2681
2682 test = in_be16(&ugeth->p_tx_glbl_pram->temoder);
2683
2684 /* Function code register value to be used later */
2685 function_code = UCC_BMR_BO_BE | UCC_BMR_GBL;
2686 /* Required for QE */
2687
2688 /* function code register */
2689 out_be32(&ugeth->p_tx_glbl_pram->tstate, ((u32) function_code) << 24);
2690
2691 /* Rx global PRAM */
2692 /* Allocate global rx parameter RAM page */
2693 ugeth->rx_glbl_pram_offset =
2694 qe_muram_alloc(sizeof(struct ucc_geth_rx_global_pram),
2695 UCC_GETH_RX_GLOBAL_PRAM_ALIGNMENT);
2696 if (IS_ERR_VALUE(ugeth->rx_glbl_pram_offset)) {
2697 if (netif_msg_ifup(ugeth))
2698 pr_err("Can not allocate DPRAM memory for p_rx_glbl_pram\n");
2699 return -ENOMEM;
2700 }
2701 ugeth->p_rx_glbl_pram =
2702 (struct ucc_geth_rx_global_pram __iomem *) qe_muram_addr(ugeth->
2703 rx_glbl_pram_offset);
2704 /* Zero out p_rx_glbl_pram */
2705 memset_io((void __iomem *)ugeth->p_rx_glbl_pram, 0, sizeof(struct ucc_geth_rx_global_pram));
2706
2707 /* Fill global PRAM */
2708
2709 /* RQPTR */
2710 /* Size varies with number of Rx threads */
2711 ugeth->thread_dat_rx_offset =
2712 qe_muram_alloc(numThreadsRxNumerical *
2713 sizeof(struct ucc_geth_thread_data_rx),
2714 UCC_GETH_THREAD_DATA_ALIGNMENT);
2715 if (IS_ERR_VALUE(ugeth->thread_dat_rx_offset)) {
2716 if (netif_msg_ifup(ugeth))
2717 pr_err("Can not allocate DPRAM memory for p_thread_data_rx\n");
2718 return -ENOMEM;
2719 }
2720
2721 ugeth->p_thread_data_rx =
2722 (struct ucc_geth_thread_data_rx __iomem *) qe_muram_addr(ugeth->
2723 thread_dat_rx_offset);
2724 out_be32(&ugeth->p_rx_glbl_pram->rqptr, ugeth->thread_dat_rx_offset);
2725
2726 /* typeorlen */
2727 out_be16(&ugeth->p_rx_glbl_pram->typeorlen, ug_info->typeorlen);
2728
2729 /* rxrmonbaseptr (statistics) */
2730 if (ug_info->
2731 statisticsMode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_RX) {
2732 ugeth->rx_fw_statistics_pram_offset =
2733 qe_muram_alloc(sizeof
2734 (struct ucc_geth_rx_firmware_statistics_pram),
2735 UCC_GETH_RX_STATISTICS_ALIGNMENT);
2736 if (IS_ERR_VALUE(ugeth->rx_fw_statistics_pram_offset)) {
2737 if (netif_msg_ifup(ugeth))
2738 pr_err("Can not allocate DPRAM memory for p_rx_fw_statistics_pram\n");
2739 return -ENOMEM;
2740 }
2741 ugeth->p_rx_fw_statistics_pram =
2742 (struct ucc_geth_rx_firmware_statistics_pram __iomem *)
2743 qe_muram_addr(ugeth->rx_fw_statistics_pram_offset);
2744 /* Zero out p_rx_fw_statistics_pram */
2745 memset_io((void __iomem *)ugeth->p_rx_fw_statistics_pram, 0,
2746 sizeof(struct ucc_geth_rx_firmware_statistics_pram));
2747 }
2748
2749 /* intCoalescingPtr */
2750
2751 /* Size varies with number of Rx queues */
2752 ugeth->rx_irq_coalescing_tbl_offset =
2753 qe_muram_alloc(ug_info->numQueuesRx *
2754 sizeof(struct ucc_geth_rx_interrupt_coalescing_entry)
2755 + 4, UCC_GETH_RX_INTERRUPT_COALESCING_ALIGNMENT);
2756 if (IS_ERR_VALUE(ugeth->rx_irq_coalescing_tbl_offset)) {
2757 if (netif_msg_ifup(ugeth))
2758 pr_err("Can not allocate DPRAM memory for p_rx_irq_coalescing_tbl\n");
2759 return -ENOMEM;
2760 }
2761
2762 ugeth->p_rx_irq_coalescing_tbl =
2763 (struct ucc_geth_rx_interrupt_coalescing_table __iomem *)
2764 qe_muram_addr(ugeth->rx_irq_coalescing_tbl_offset);
2765 out_be32(&ugeth->p_rx_glbl_pram->intcoalescingptr,
2766 ugeth->rx_irq_coalescing_tbl_offset);
2767
2768 /* Fill interrupt coalescing table */
2769 for (i = 0; i < ug_info->numQueuesRx; i++) {
2770 out_be32(&ugeth->p_rx_irq_coalescing_tbl->coalescingentry[i].
2771 interruptcoalescingmaxvalue,
2772 ug_info->interruptcoalescingmaxvalue[i]);
2773 out_be32(&ugeth->p_rx_irq_coalescing_tbl->coalescingentry[i].
2774 interruptcoalescingcounter,
2775 ug_info->interruptcoalescingmaxvalue[i]);
2776 }
2777
2778 /* MRBLR */
2779 init_max_rx_buff_len(uf_info->max_rx_buf_length,
2780 &ugeth->p_rx_glbl_pram->mrblr);
2781 /* MFLR */
2782 out_be16(&ugeth->p_rx_glbl_pram->mflr, ug_info->maxFrameLength);
2783 /* MINFLR */
2784 init_min_frame_len(ug_info->minFrameLength,
2785 &ugeth->p_rx_glbl_pram->minflr,
2786 &ugeth->p_rx_glbl_pram->mrblr);
2787 /* MAXD1 */
2788 out_be16(&ugeth->p_rx_glbl_pram->maxd1, ug_info->maxD1Length);
2789 /* MAXD2 */
2790 out_be16(&ugeth->p_rx_glbl_pram->maxd2, ug_info->maxD2Length);
2791
2792 /* l2qt */
2793 l2qt = 0;
2794 for (i = 0; i < UCC_GETH_VLAN_PRIORITY_MAX; i++)
2795 l2qt |= (ug_info->l2qt[i] << (28 - 4 * i));
2796 out_be32(&ugeth->p_rx_glbl_pram->l2qt, l2qt);
2797
2798 /* l3qt */
2799 for (j = 0; j < UCC_GETH_IP_PRIORITY_MAX; j += 8) {
2800 l3qt = 0;
2801 for (i = 0; i < 8; i++)
2802 l3qt |= (ug_info->l3qt[j + i] << (28 - 4 * i));
2803 out_be32(&ugeth->p_rx_glbl_pram->l3qt[j/8], l3qt);
2804 }
2805
2806 /* vlantype */
2807 out_be16(&ugeth->p_rx_glbl_pram->vlantype, ug_info->vlantype);
2808
2809 /* vlantci */
2810 out_be16(&ugeth->p_rx_glbl_pram->vlantci, ug_info->vlantci);
2811
2812 /* ecamptr */
2813 out_be32(&ugeth->p_rx_glbl_pram->ecamptr, ug_info->ecamptr);
2814
2815 /* RBDQPTR */
2816 /* Size varies with number of Rx queues */
2817 ugeth->rx_bd_qs_tbl_offset =
2818 qe_muram_alloc(ug_info->numQueuesRx *
2819 (sizeof(struct ucc_geth_rx_bd_queues_entry) +
2820 sizeof(struct ucc_geth_rx_prefetched_bds)),
2821 UCC_GETH_RX_BD_QUEUES_ALIGNMENT);
2822 if (IS_ERR_VALUE(ugeth->rx_bd_qs_tbl_offset)) {
2823 if (netif_msg_ifup(ugeth))
2824 pr_err("Can not allocate DPRAM memory for p_rx_bd_qs_tbl\n");
2825 return -ENOMEM;
2826 }
2827
2828 ugeth->p_rx_bd_qs_tbl =
2829 (struct ucc_geth_rx_bd_queues_entry __iomem *) qe_muram_addr(ugeth->
2830 rx_bd_qs_tbl_offset);
2831 out_be32(&ugeth->p_rx_glbl_pram->rbdqptr, ugeth->rx_bd_qs_tbl_offset);
2832 /* Zero out p_rx_bd_qs_tbl */
2833 memset_io((void __iomem *)ugeth->p_rx_bd_qs_tbl,
2834 0,
2835 ug_info->numQueuesRx * (sizeof(struct ucc_geth_rx_bd_queues_entry) +
2836 sizeof(struct ucc_geth_rx_prefetched_bds)));
2837
2838 /* Setup the table */
2839 /* Assume BD rings are already established */
2840 for (i = 0; i < ug_info->numQueuesRx; i++) {
2841 if (ugeth->ug_info->uf_info.bd_mem_part == MEM_PART_SYSTEM) {
2842 out_be32(&ugeth->p_rx_bd_qs_tbl[i].externalbdbaseptr,
2843 (u32) virt_to_phys(ugeth->p_rx_bd_ring[i]));
2844 } else if (ugeth->ug_info->uf_info.bd_mem_part ==
2845 MEM_PART_MURAM) {
2846 out_be32(&ugeth->p_rx_bd_qs_tbl[i].externalbdbaseptr,
2847 (u32) immrbar_virt_to_phys(ugeth->
2848 p_rx_bd_ring[i]));
2849 }
2850 /* rest of fields handled by QE */
2851 }
2852
2853 /* remoder */
2854 /* Already has speed set */
2855
2856 if (ugeth->rx_extended_features)
2857 remoder |= REMODER_RX_EXTENDED_FEATURES;
2858 if (ug_info->rxExtendedFiltering)
2859 remoder |= REMODER_RX_EXTENDED_FILTERING;
2860 if (ug_info->dynamicMaxFrameLength)
2861 remoder |= REMODER_DYNAMIC_MAX_FRAME_LENGTH;
2862 if (ug_info->dynamicMinFrameLength)
2863 remoder |= REMODER_DYNAMIC_MIN_FRAME_LENGTH;
2864 remoder |=
2865 ug_info->vlanOperationTagged << REMODER_VLAN_OPERATION_TAGGED_SHIFT;
2866 remoder |=
2867 ug_info->
2868 vlanOperationNonTagged << REMODER_VLAN_OPERATION_NON_TAGGED_SHIFT;
2869 remoder |= ug_info->rxQoSMode << REMODER_RX_QOS_MODE_SHIFT;
2870 remoder |= ((ug_info->numQueuesRx - 1) << REMODER_NUM_OF_QUEUES_SHIFT);
2871 if (ug_info->ipCheckSumCheck)
2872 remoder |= REMODER_IP_CHECKSUM_CHECK;
2873 if (ug_info->ipAddressAlignment)
2874 remoder |= REMODER_IP_ADDRESS_ALIGNMENT;
2875 out_be32(&ugeth->p_rx_glbl_pram->remoder, remoder);
2876
2877 /* Note that this function must be called */
2878 /* ONLY AFTER p_tx_fw_statistics_pram */
2879 /* andp_UccGethRxFirmwareStatisticsPram are allocated ! */
2880 init_firmware_statistics_gathering_mode((ug_info->
2881 statisticsMode &
2882 UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_TX),
2883 (ug_info->statisticsMode &
2884 UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_RX),
2885 &ugeth->p_tx_glbl_pram->txrmonbaseptr,
2886 ugeth->tx_fw_statistics_pram_offset,
2887 &ugeth->p_rx_glbl_pram->rxrmonbaseptr,
2888 ugeth->rx_fw_statistics_pram_offset,
2889 &ugeth->p_tx_glbl_pram->temoder,
2890 &ugeth->p_rx_glbl_pram->remoder);
2891
2892 /* function code register */
2893 out_8(&ugeth->p_rx_glbl_pram->rstate, function_code);
2894
2895 /* initialize extended filtering */
2896 if (ug_info->rxExtendedFiltering) {
2897 if (!ug_info->extendedFilteringChainPointer) {
2898 if (netif_msg_ifup(ugeth))
2899 pr_err("Null Extended Filtering Chain Pointer\n");
2900 return -EINVAL;
2901 }
2902
2903 /* Allocate memory for extended filtering Mode Global
2904 Parameters */
2905 ugeth->exf_glbl_param_offset =
2906 qe_muram_alloc(sizeof(struct ucc_geth_exf_global_pram),
2907 UCC_GETH_RX_EXTENDED_FILTERING_GLOBAL_PARAMETERS_ALIGNMENT);
2908 if (IS_ERR_VALUE(ugeth->exf_glbl_param_offset)) {
2909 if (netif_msg_ifup(ugeth))
2910 pr_err("Can not allocate DPRAM memory for p_exf_glbl_param\n");
2911 return -ENOMEM;
2912 }
2913
2914 ugeth->p_exf_glbl_param =
2915 (struct ucc_geth_exf_global_pram __iomem *) qe_muram_addr(ugeth->
2916 exf_glbl_param_offset);
2917 out_be32(&ugeth->p_rx_glbl_pram->exfGlobalParam,
2918 ugeth->exf_glbl_param_offset);
2919 out_be32(&ugeth->p_exf_glbl_param->l2pcdptr,
2920 (u32) ug_info->extendedFilteringChainPointer);
2921
2922 } else { /* initialize 82xx style address filtering */
2923
2924 /* Init individual address recognition registers to disabled */
2925
2926 for (j = 0; j < NUM_OF_PADDRS; j++)
2927 ugeth_82xx_filtering_clear_addr_in_paddr(ugeth, (u8) j);
2928
2929 p_82xx_addr_filt =
2930 (struct ucc_geth_82xx_address_filtering_pram __iomem *) ugeth->
2931 p_rx_glbl_pram->addressfiltering;
2932
2933 ugeth_82xx_filtering_clear_all_addr_in_hash(ugeth,
2934 ENET_ADDR_TYPE_GROUP);
2935 ugeth_82xx_filtering_clear_all_addr_in_hash(ugeth,
2936 ENET_ADDR_TYPE_INDIVIDUAL);
2937 }
2938
2939 /*
2940 * Initialize UCC at QE level
2941 */
2942
2943 command = QE_INIT_TX_RX;
2944
2945 /* Allocate shadow InitEnet command parameter structure.
2946 * This is needed because after the InitEnet command is executed,
2947 * the structure in DPRAM is released, because DPRAM is a premium
2948 * resource.
2949 * This shadow structure keeps a copy of what was done so that the
2950 * allocated resources can be released when the channel is freed.
2951 */
2952 if (!(ugeth->p_init_enet_param_shadow =
2953 kmalloc(sizeof(struct ucc_geth_init_pram), GFP_KERNEL))) {
2954 if (netif_msg_ifup(ugeth))
2955 pr_err("Can not allocate memory for p_UccInitEnetParamShadows\n");
2956 return -ENOMEM;
2957 }
2958 /* Zero out *p_init_enet_param_shadow */
2959 memset((char *)ugeth->p_init_enet_param_shadow,
2960 0, sizeof(struct ucc_geth_init_pram));
2961
2962 /* Fill shadow InitEnet command parameter structure */
2963
2964 ugeth->p_init_enet_param_shadow->resinit1 =
2965 ENET_INIT_PARAM_MAGIC_RES_INIT1;
2966 ugeth->p_init_enet_param_shadow->resinit2 =
2967 ENET_INIT_PARAM_MAGIC_RES_INIT2;
2968 ugeth->p_init_enet_param_shadow->resinit3 =
2969 ENET_INIT_PARAM_MAGIC_RES_INIT3;
2970 ugeth->p_init_enet_param_shadow->resinit4 =
2971 ENET_INIT_PARAM_MAGIC_RES_INIT4;
2972 ugeth->p_init_enet_param_shadow->resinit5 =
2973 ENET_INIT_PARAM_MAGIC_RES_INIT5;
2974 ugeth->p_init_enet_param_shadow->rgftgfrxglobal |=
2975 ((u32) ug_info->numThreadsRx) << ENET_INIT_PARAM_RGF_SHIFT;
2976 ugeth->p_init_enet_param_shadow->rgftgfrxglobal |=
2977 ((u32) ug_info->numThreadsTx) << ENET_INIT_PARAM_TGF_SHIFT;
2978
2979 ugeth->p_init_enet_param_shadow->rgftgfrxglobal |=
2980 ugeth->rx_glbl_pram_offset | ug_info->riscRx;
2981 if ((ug_info->largestexternallookupkeysize !=
2982 QE_FLTR_LARGEST_EXTERNAL_TABLE_LOOKUP_KEY_SIZE_NONE) &&
2983 (ug_info->largestexternallookupkeysize !=
2984 QE_FLTR_LARGEST_EXTERNAL_TABLE_LOOKUP_KEY_SIZE_8_BYTES) &&
2985 (ug_info->largestexternallookupkeysize !=
2986 QE_FLTR_LARGEST_EXTERNAL_TABLE_LOOKUP_KEY_SIZE_16_BYTES)) {
2987 if (netif_msg_ifup(ugeth))
2988 pr_err("Invalid largest External Lookup Key Size\n");
2989 return -EINVAL;
2990 }
2991 ugeth->p_init_enet_param_shadow->largestexternallookupkeysize =
2992 ug_info->largestexternallookupkeysize;
2993 size = sizeof(struct ucc_geth_thread_rx_pram);
2994 if (ug_info->rxExtendedFiltering) {
2995 size += THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING;
2996 if (ug_info->largestexternallookupkeysize ==
2997 QE_FLTR_LARGEST_EXTERNAL_TABLE_LOOKUP_KEY_SIZE_8_BYTES)
2998 size +=
2999 THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING_8;
3000 if (ug_info->largestexternallookupkeysize ==
3001 QE_FLTR_LARGEST_EXTERNAL_TABLE_LOOKUP_KEY_SIZE_16_BYTES)
3002 size +=
3003 THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING_16;
3004 }
3005
3006 if ((ret_val = fill_init_enet_entries(ugeth, &(ugeth->
3007 p_init_enet_param_shadow->rxthread[0]),
3008 (u8) (numThreadsRxNumerical + 1)
3009 /* Rx needs one extra for terminator */
3010 , size, UCC_GETH_THREAD_RX_PRAM_ALIGNMENT,
3011 ug_info->riscRx, 1)) != 0) {
3012 if (netif_msg_ifup(ugeth))
3013 pr_err("Can not fill p_init_enet_param_shadow\n");
3014 return ret_val;
3015 }
3016
3017 ugeth->p_init_enet_param_shadow->txglobal =
3018 ugeth->tx_glbl_pram_offset | ug_info->riscTx;
3019 if ((ret_val =
3020 fill_init_enet_entries(ugeth,
3021 &(ugeth->p_init_enet_param_shadow->
3022 txthread[0]), numThreadsTxNumerical,
3023 sizeof(struct ucc_geth_thread_tx_pram),
3024 UCC_GETH_THREAD_TX_PRAM_ALIGNMENT,
3025 ug_info->riscTx, 0)) != 0) {
3026 if (netif_msg_ifup(ugeth))
3027 pr_err("Can not fill p_init_enet_param_shadow\n");
3028 return ret_val;
3029 }
3030
3031 /* Load Rx bds with buffers */
3032 for (i = 0; i < ug_info->numQueuesRx; i++) {
3033 if ((ret_val = rx_bd_buffer_set(ugeth, (u8) i)) != 0) {
3034 if (netif_msg_ifup(ugeth))
3035 pr_err("Can not fill Rx bds with buffers\n");
3036 return ret_val;
3037 }
3038 }
3039
3040 /* Allocate InitEnet command parameter structure */
3041 init_enet_pram_offset = qe_muram_alloc(sizeof(struct ucc_geth_init_pram), 4);
3042 if (IS_ERR_VALUE(init_enet_pram_offset)) {
3043 if (netif_msg_ifup(ugeth))
3044 pr_err("Can not allocate DPRAM memory for p_init_enet_pram\n");
3045 return -ENOMEM;
3046 }
3047 p_init_enet_pram =
3048 (struct ucc_geth_init_pram __iomem *) qe_muram_addr(init_enet_pram_offset);
3049
3050 /* Copy shadow InitEnet command parameter structure into PRAM */
3051 out_8(&p_init_enet_pram->resinit1,
3052 ugeth->p_init_enet_param_shadow->resinit1);
3053 out_8(&p_init_enet_pram->resinit2,
3054 ugeth->p_init_enet_param_shadow->resinit2);
3055 out_8(&p_init_enet_pram->resinit3,
3056 ugeth->p_init_enet_param_shadow->resinit3);
3057 out_8(&p_init_enet_pram->resinit4,
3058 ugeth->p_init_enet_param_shadow->resinit4);
3059 out_be16(&p_init_enet_pram->resinit5,
3060 ugeth->p_init_enet_param_shadow->resinit5);
3061 out_8(&p_init_enet_pram->largestexternallookupkeysize,
3062 ugeth->p_init_enet_param_shadow->largestexternallookupkeysize);
3063 out_be32(&p_init_enet_pram->rgftgfrxglobal,
3064 ugeth->p_init_enet_param_shadow->rgftgfrxglobal);
3065 for (i = 0; i < ENET_INIT_PARAM_MAX_ENTRIES_RX; i++)
3066 out_be32(&p_init_enet_pram->rxthread[i],
3067 ugeth->p_init_enet_param_shadow->rxthread[i]);
3068 out_be32(&p_init_enet_pram->txglobal,
3069 ugeth->p_init_enet_param_shadow->txglobal);
3070 for (i = 0; i < ENET_INIT_PARAM_MAX_ENTRIES_TX; i++)
3071 out_be32(&p_init_enet_pram->txthread[i],
3072 ugeth->p_init_enet_param_shadow->txthread[i]);
3073
3074 /* Issue QE command */
3075 cecr_subblock =
3076 ucc_fast_get_qe_cr_subblock(ugeth->ug_info->uf_info.ucc_num);
3077 qe_issue_cmd(command, cecr_subblock, QE_CR_PROTOCOL_ETHERNET,
3078 init_enet_pram_offset);
3079
3080 /* Free InitEnet command parameter */
3081 qe_muram_free(init_enet_pram_offset);
3082
3083 return 0;
3084 }
3085
3086 /* This is called by the kernel when a frame is ready for transmission. */
3087 /* It is pointed to by the dev->hard_start_xmit function pointer */
3088 static int ucc_geth_start_xmit(struct sk_buff *skb, struct net_device *dev)
3089 {
3090 struct ucc_geth_private *ugeth = netdev_priv(dev);
3091 #ifdef CONFIG_UGETH_TX_ON_DEMAND
3092 struct ucc_fast_private *uccf;
3093 #endif
3094 u8 __iomem *bd; /* BD pointer */
3095 u32 bd_status;
3096 u8 txQ = 0;
3097 unsigned long flags;
3098
3099 ugeth_vdbg("%s: IN", __func__);
3100
3101 spin_lock_irqsave(&ugeth->lock, flags);
3102
3103 dev->stats.tx_bytes += skb->len;
3104
3105 /* Start from the next BD that should be filled */
3106 bd = ugeth->txBd[txQ];
3107 bd_status = in_be32((u32 __iomem *)bd);
3108 /* Save the skb pointer so we can free it later */
3109 ugeth->tx_skbuff[txQ][ugeth->skb_curtx[txQ]] = skb;
3110
3111 /* Update the current skb pointer (wrapping if this was the last) */
3112 ugeth->skb_curtx[txQ] =
3113 (ugeth->skb_curtx[txQ] +
3114 1) & TX_RING_MOD_MASK(ugeth->ug_info->bdRingLenTx[txQ]);
3115
3116 /* set up the buffer descriptor */
3117 out_be32(&((struct qe_bd __iomem *)bd)->buf,
3118 dma_map_single(ugeth->dev, skb->data,
3119 skb->len, DMA_TO_DEVICE));
3120
3121 /* printk(KERN_DEBUG"skb->data is 0x%x\n",skb->data); */
3122
3123 bd_status = (bd_status & T_W) | T_R | T_I | T_L | skb->len;
3124
3125 /* set bd status and length */
3126 out_be32((u32 __iomem *)bd, bd_status);
3127
3128 /* Move to next BD in the ring */
3129 if (!(bd_status & T_W))
3130 bd += sizeof(struct qe_bd);
3131 else
3132 bd = ugeth->p_tx_bd_ring[txQ];
3133
3134 /* If the next BD still needs to be cleaned up, then the bds
3135 are full. We need to tell the kernel to stop sending us stuff. */
3136 if (bd == ugeth->confBd[txQ]) {
3137 if (!netif_queue_stopped(dev))
3138 netif_stop_queue(dev);
3139 }
3140
3141 ugeth->txBd[txQ] = bd;
3142
3143 skb_tx_timestamp(skb);
3144
3145 if (ugeth->p_scheduler) {
3146 ugeth->cpucount[txQ]++;
3147 /* Indicate to QE that there are more Tx bds ready for
3148 transmission */
3149 /* This is done by writing a running counter of the bd
3150 count to the scheduler PRAM. */
3151 out_be16(ugeth->p_cpucount[txQ], ugeth->cpucount[txQ]);
3152 }
3153
3154 #ifdef CONFIG_UGETH_TX_ON_DEMAND
3155 uccf = ugeth->uccf;
3156 out_be16(uccf->p_utodr, UCC_FAST_TOD);
3157 #endif
3158 spin_unlock_irqrestore(&ugeth->lock, flags);
3159
3160 return NETDEV_TX_OK;
3161 }
3162
3163 static int ucc_geth_rx(struct ucc_geth_private *ugeth, u8 rxQ, int rx_work_limit)
3164 {
3165 struct sk_buff *skb;
3166 u8 __iomem *bd;
3167 u16 length, howmany = 0;
3168 u32 bd_status;
3169 u8 *bdBuffer;
3170 struct net_device *dev;
3171
3172 ugeth_vdbg("%s: IN", __func__);
3173
3174 dev = ugeth->ndev;
3175
3176 /* collect received buffers */
3177 bd = ugeth->rxBd[rxQ];
3178
3179 bd_status = in_be32((u32 __iomem *)bd);
3180
3181 /* while there are received buffers and BD is full (~R_E) */
3182 while (!((bd_status & (R_E)) || (--rx_work_limit < 0))) {
3183 bdBuffer = (u8 *) in_be32(&((struct qe_bd __iomem *)bd)->buf);
3184 length = (u16) ((bd_status & BD_LENGTH_MASK) - 4);
3185 skb = ugeth->rx_skbuff[rxQ][ugeth->skb_currx[rxQ]];
3186
3187 /* determine whether buffer is first, last, first and last
3188 (single buffer frame) or middle (not first and not last) */
3189 if (!skb ||
3190 (!(bd_status & (R_F | R_L))) ||
3191 (bd_status & R_ERRORS_FATAL)) {
3192 if (netif_msg_rx_err(ugeth))
3193 pr_err("%d: ERROR!!! skb - 0x%08x\n",
3194 __LINE__, (u32)skb);
3195 dev_kfree_skb(skb);
3196
3197 ugeth->rx_skbuff[rxQ][ugeth->skb_currx[rxQ]] = NULL;
3198 dev->stats.rx_dropped++;
3199 } else {
3200 dev->stats.rx_packets++;
3201 howmany++;
3202
3203 /* Prep the skb for the packet */
3204 skb_put(skb, length);
3205
3206 /* Tell the skb what kind of packet this is */
3207 skb->protocol = eth_type_trans(skb, ugeth->ndev);
3208
3209 dev->stats.rx_bytes += length;
3210 /* Send the packet up the stack */
3211 netif_receive_skb(skb);
3212 }
3213
3214 skb = get_new_skb(ugeth, bd);
3215 if (!skb) {
3216 if (netif_msg_rx_err(ugeth))
3217 pr_warn("No Rx Data Buffer\n");
3218 dev->stats.rx_dropped++;
3219 break;
3220 }
3221
3222 ugeth->rx_skbuff[rxQ][ugeth->skb_currx[rxQ]] = skb;
3223
3224 /* update to point at the next skb */
3225 ugeth->skb_currx[rxQ] =
3226 (ugeth->skb_currx[rxQ] +
3227 1) & RX_RING_MOD_MASK(ugeth->ug_info->bdRingLenRx[rxQ]);
3228
3229 if (bd_status & R_W)
3230 bd = ugeth->p_rx_bd_ring[rxQ];
3231 else
3232 bd += sizeof(struct qe_bd);
3233
3234 bd_status = in_be32((u32 __iomem *)bd);
3235 }
3236
3237 ugeth->rxBd[rxQ] = bd;
3238 return howmany;
3239 }
3240
3241 static int ucc_geth_tx(struct net_device *dev, u8 txQ)
3242 {
3243 /* Start from the next BD that should be filled */
3244 struct ucc_geth_private *ugeth = netdev_priv(dev);
3245 u8 __iomem *bd; /* BD pointer */
3246 u32 bd_status;
3247
3248 bd = ugeth->confBd[txQ];
3249 bd_status = in_be32((u32 __iomem *)bd);
3250
3251 /* Normal processing. */
3252 while ((bd_status & T_R) == 0) {
3253 struct sk_buff *skb;
3254
3255 /* BD contains already transmitted buffer. */
3256 /* Handle the transmitted buffer and release */
3257 /* the BD to be used with the current frame */
3258
3259 skb = ugeth->tx_skbuff[txQ][ugeth->skb_dirtytx[txQ]];
3260 if (!skb)
3261 break;
3262
3263 dev->stats.tx_packets++;
3264
3265 dev_consume_skb_any(skb);
3266
3267 ugeth->tx_skbuff[txQ][ugeth->skb_dirtytx[txQ]] = NULL;
3268 ugeth->skb_dirtytx[txQ] =
3269 (ugeth->skb_dirtytx[txQ] +
3270 1) & TX_RING_MOD_MASK(ugeth->ug_info->bdRingLenTx[txQ]);
3271
3272 /* We freed a buffer, so now we can restart transmission */
3273 if (netif_queue_stopped(dev))
3274 netif_wake_queue(dev);
3275
3276 /* Advance the confirmation BD pointer */
3277 if (!(bd_status & T_W))
3278 bd += sizeof(struct qe_bd);
3279 else
3280 bd = ugeth->p_tx_bd_ring[txQ];
3281 bd_status = in_be32((u32 __iomem *)bd);
3282 }
3283 ugeth->confBd[txQ] = bd;
3284 return 0;
3285 }
3286
3287 static int ucc_geth_poll(struct napi_struct *napi, int budget)
3288 {
3289 struct ucc_geth_private *ugeth = container_of(napi, struct ucc_geth_private, napi);
3290 struct ucc_geth_info *ug_info;
3291 int howmany, i;
3292
3293 ug_info = ugeth->ug_info;
3294
3295 /* Tx event processing */
3296 spin_lock(&ugeth->lock);
3297 for (i = 0; i < ug_info->numQueuesTx; i++)
3298 ucc_geth_tx(ugeth->ndev, i);
3299 spin_unlock(&ugeth->lock);
3300
3301 howmany = 0;
3302 for (i = 0; i < ug_info->numQueuesRx; i++)
3303 howmany += ucc_geth_rx(ugeth, i, budget - howmany);
3304
3305 if (howmany < budget) {
3306 napi_complete_done(napi, howmany);
3307 setbits32(ugeth->uccf->p_uccm, UCCE_RX_EVENTS | UCCE_TX_EVENTS);
3308 }
3309
3310 return howmany;
3311 }
3312
3313 static irqreturn_t ucc_geth_irq_handler(int irq, void *info)
3314 {
3315 struct net_device *dev = info;
3316 struct ucc_geth_private *ugeth = netdev_priv(dev);
3317 struct ucc_fast_private *uccf;
3318 struct ucc_geth_info *ug_info;
3319 register u32 ucce;
3320 register u32 uccm;
3321
3322 ugeth_vdbg("%s: IN", __func__);
3323
3324 uccf = ugeth->uccf;
3325 ug_info = ugeth->ug_info;
3326
3327 /* read and clear events */
3328 ucce = (u32) in_be32(uccf->p_ucce);
3329 uccm = (u32) in_be32(uccf->p_uccm);
3330 ucce &= uccm;
3331 out_be32(uccf->p_ucce, ucce);
3332
3333 /* check for receive events that require processing */
3334 if (ucce & (UCCE_RX_EVENTS | UCCE_TX_EVENTS)) {
3335 if (napi_schedule_prep(&ugeth->napi)) {
3336 uccm &= ~(UCCE_RX_EVENTS | UCCE_TX_EVENTS);
3337 out_be32(uccf->p_uccm, uccm);
3338 __napi_schedule(&ugeth->napi);
3339 }
3340 }
3341
3342 /* Errors and other events */
3343 if (ucce & UCCE_OTHER) {
3344 if (ucce & UCC_GETH_UCCE_BSY)
3345 dev->stats.rx_errors++;
3346 if (ucce & UCC_GETH_UCCE_TXE)
3347 dev->stats.tx_errors++;
3348 }
3349
3350 return IRQ_HANDLED;
3351 }
3352
3353 #ifdef CONFIG_NET_POLL_CONTROLLER
3354 /*
3355 * Polling 'interrupt' - used by things like netconsole to send skbs
3356 * without having to re-enable interrupts. It's not called while
3357 * the interrupt routine is executing.
3358 */
3359 static void ucc_netpoll(struct net_device *dev)
3360 {
3361 struct ucc_geth_private *ugeth = netdev_priv(dev);
3362 int irq = ugeth->ug_info->uf_info.irq;
3363
3364 disable_irq(irq);
3365 ucc_geth_irq_handler(irq, dev);
3366 enable_irq(irq);
3367 }
3368 #endif /* CONFIG_NET_POLL_CONTROLLER */
3369
3370 static int ucc_geth_set_mac_addr(struct net_device *dev, void *p)
3371 {
3372 struct ucc_geth_private *ugeth = netdev_priv(dev);
3373 struct sockaddr *addr = p;
3374
3375 if (!is_valid_ether_addr(addr->sa_data))
3376 return -EADDRNOTAVAIL;
3377
3378 memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
3379
3380 /*
3381 * If device is not running, we will set mac addr register
3382 * when opening the device.
3383 */
3384 if (!netif_running(dev))
3385 return 0;
3386
3387 spin_lock_irq(&ugeth->lock);
3388 init_mac_station_addr_regs(dev->dev_addr[0],
3389 dev->dev_addr[1],
3390 dev->dev_addr[2],
3391 dev->dev_addr[3],
3392 dev->dev_addr[4],
3393 dev->dev_addr[5],
3394 &ugeth->ug_regs->macstnaddr1,
3395 &ugeth->ug_regs->macstnaddr2);
3396 spin_unlock_irq(&ugeth->lock);
3397
3398 return 0;
3399 }
3400
3401 static int ucc_geth_init_mac(struct ucc_geth_private *ugeth)
3402 {
3403 struct net_device *dev = ugeth->ndev;
3404 int err;
3405
3406 err = ucc_struct_init(ugeth);
3407 if (err) {
3408 netif_err(ugeth, ifup, dev, "Cannot configure internal struct, aborting\n");
3409 goto err;
3410 }
3411
3412 err = ucc_geth_startup(ugeth);
3413 if (err) {
3414 netif_err(ugeth, ifup, dev, "Cannot configure net device, aborting\n");
3415 goto err;
3416 }
3417
3418 err = adjust_enet_interface(ugeth);
3419 if (err) {
3420 netif_err(ugeth, ifup, dev, "Cannot configure net device, aborting\n");
3421 goto err;
3422 }
3423
3424 /* Set MACSTNADDR1, MACSTNADDR2 */
3425 /* For more details see the hardware spec. */
3426 init_mac_station_addr_regs(dev->dev_addr[0],
3427 dev->dev_addr[1],
3428 dev->dev_addr[2],
3429 dev->dev_addr[3],
3430 dev->dev_addr[4],
3431 dev->dev_addr[5],
3432 &ugeth->ug_regs->macstnaddr1,
3433 &ugeth->ug_regs->macstnaddr2);
3434
3435 err = ugeth_enable(ugeth, COMM_DIR_RX_AND_TX);
3436 if (err) {
3437 netif_err(ugeth, ifup, dev, "Cannot enable net device, aborting\n");
3438 goto err;
3439 }
3440
3441 return 0;
3442 err:
3443 ucc_geth_stop(ugeth);
3444 return err;
3445 }
3446
3447 /* Called when something needs to use the ethernet device */
3448 /* Returns 0 for success. */
3449 static int ucc_geth_open(struct net_device *dev)
3450 {
3451 struct ucc_geth_private *ugeth = netdev_priv(dev);
3452 int err;
3453
3454 ugeth_vdbg("%s: IN", __func__);
3455
3456 /* Test station address */
3457 if (dev->dev_addr[0] & ENET_GROUP_ADDR) {
3458 netif_err(ugeth, ifup, dev,
3459 "Multicast address used for station address - is this what you wanted?\n");
3460 return -EINVAL;
3461 }
3462
3463 err = init_phy(dev);
3464 if (err) {
3465 netif_err(ugeth, ifup, dev, "Cannot initialize PHY, aborting\n");
3466 return err;
3467 }
3468
3469 err = ucc_geth_init_mac(ugeth);
3470 if (err) {
3471 netif_err(ugeth, ifup, dev, "Cannot initialize MAC, aborting\n");
3472 goto err;
3473 }
3474
3475 err = request_irq(ugeth->ug_info->uf_info.irq, ucc_geth_irq_handler,
3476 0, "UCC Geth", dev);
3477 if (err) {
3478 netif_err(ugeth, ifup, dev, "Cannot get IRQ for net device, aborting\n");
3479 goto err;
3480 }
3481
3482 phy_start(ugeth->phydev);
3483 napi_enable(&ugeth->napi);
3484 netif_start_queue(dev);
3485
3486 device_set_wakeup_capable(&dev->dev,
3487 qe_alive_during_sleep() || ugeth->phydev->irq);
3488 device_set_wakeup_enable(&dev->dev, ugeth->wol_en);
3489
3490 return err;
3491
3492 err:
3493 ucc_geth_stop(ugeth);
3494 return err;
3495 }
3496
3497 /* Stops the kernel queue, and halts the controller */
3498 static int ucc_geth_close(struct net_device *dev)
3499 {
3500 struct ucc_geth_private *ugeth = netdev_priv(dev);
3501
3502 ugeth_vdbg("%s: IN", __func__);
3503
3504 napi_disable(&ugeth->napi);
3505
3506 cancel_work_sync(&ugeth->timeout_work);
3507 ucc_geth_stop(ugeth);
3508 phy_disconnect(ugeth->phydev);
3509 ugeth->phydev = NULL;
3510
3511 free_irq(ugeth->ug_info->uf_info.irq, ugeth->ndev);
3512
3513 netif_stop_queue(dev);
3514
3515 return 0;
3516 }
3517
3518 /* Reopen device. This will reset the MAC and PHY. */
3519 static void ucc_geth_timeout_work(struct work_struct *work)
3520 {
3521 struct ucc_geth_private *ugeth;
3522 struct net_device *dev;
3523
3524 ugeth = container_of(work, struct ucc_geth_private, timeout_work);
3525 dev = ugeth->ndev;
3526
3527 ugeth_vdbg("%s: IN", __func__);
3528
3529 dev->stats.tx_errors++;
3530
3531 ugeth_dump_regs(ugeth);
3532
3533 if (dev->flags & IFF_UP) {
3534 /*
3535 * Must reset MAC *and* PHY. This is done by reopening
3536 * the device.
3537 */
3538 netif_tx_stop_all_queues(dev);
3539 ucc_geth_stop(ugeth);
3540 ucc_geth_init_mac(ugeth);
3541 /* Must start PHY here */
3542 phy_start(ugeth->phydev);
3543 netif_tx_start_all_queues(dev);
3544 }
3545
3546 netif_tx_schedule_all(dev);
3547 }
3548
3549 /*
3550 * ucc_geth_timeout gets called when a packet has not been
3551 * transmitted after a set amount of time.
3552 */
3553 static void ucc_geth_timeout(struct net_device *dev)
3554 {
3555 struct ucc_geth_private *ugeth = netdev_priv(dev);
3556
3557 schedule_work(&ugeth->timeout_work);
3558 }
3559
3560
3561 #ifdef CONFIG_PM
3562
3563 static int ucc_geth_suspend(struct platform_device *ofdev, pm_message_t state)
3564 {
3565 struct net_device *ndev = platform_get_drvdata(ofdev);
3566 struct ucc_geth_private *ugeth = netdev_priv(ndev);
3567
3568 if (!netif_running(ndev))
3569 return 0;
3570
3571 netif_device_detach(ndev);
3572 napi_disable(&ugeth->napi);
3573
3574 /*
3575 * Disable the controller, otherwise we'll wakeup on any network
3576 * activity.
3577 */
3578 ugeth_disable(ugeth, COMM_DIR_RX_AND_TX);
3579
3580 if (ugeth->wol_en & WAKE_MAGIC) {
3581 setbits32(ugeth->uccf->p_uccm, UCC_GETH_UCCE_MPD);
3582 setbits32(&ugeth->ug_regs->maccfg2, MACCFG2_MPE);
3583 ucc_fast_enable(ugeth->uccf, COMM_DIR_RX_AND_TX);
3584 } else if (!(ugeth->wol_en & WAKE_PHY)) {
3585 phy_stop(ugeth->phydev);
3586 }
3587
3588 return 0;
3589 }
3590
3591 static int ucc_geth_resume(struct platform_device *ofdev)
3592 {
3593 struct net_device *ndev = platform_get_drvdata(ofdev);
3594 struct ucc_geth_private *ugeth = netdev_priv(ndev);
3595 int err;
3596
3597 if (!netif_running(ndev))
3598 return 0;
3599
3600 if (qe_alive_during_sleep()) {
3601 if (ugeth->wol_en & WAKE_MAGIC) {
3602 ucc_fast_disable(ugeth->uccf, COMM_DIR_RX_AND_TX);
3603 clrbits32(&ugeth->ug_regs->maccfg2, MACCFG2_MPE);
3604 clrbits32(ugeth->uccf->p_uccm, UCC_GETH_UCCE_MPD);
3605 }
3606 ugeth_enable(ugeth, COMM_DIR_RX_AND_TX);
3607 } else {
3608 /*
3609 * Full reinitialization is required if QE shuts down
3610 * during sleep.
3611 */
3612 ucc_geth_memclean(ugeth);
3613
3614 err = ucc_geth_init_mac(ugeth);
3615 if (err) {
3616 netdev_err(ndev, "Cannot initialize MAC, aborting\n");
3617 return err;
3618 }
3619 }
3620
3621 ugeth->oldlink = 0;
3622 ugeth->oldspeed = 0;
3623 ugeth->oldduplex = -1;
3624
3625 phy_stop(ugeth->phydev);
3626 phy_start(ugeth->phydev);
3627
3628 napi_enable(&ugeth->napi);
3629 netif_device_attach(ndev);
3630
3631 return 0;
3632 }
3633
3634 #else
3635 #define ucc_geth_suspend NULL
3636 #define ucc_geth_resume NULL
3637 #endif
3638
3639 static phy_interface_t to_phy_interface(const char *phy_connection_type)
3640 {
3641 if (strcasecmp(phy_connection_type, "mii") == 0)
3642 return PHY_INTERFACE_MODE_MII;
3643 if (strcasecmp(phy_connection_type, "gmii") == 0)
3644 return PHY_INTERFACE_MODE_GMII;
3645 if (strcasecmp(phy_connection_type, "tbi") == 0)
3646 return PHY_INTERFACE_MODE_TBI;
3647 if (strcasecmp(phy_connection_type, "rmii") == 0)
3648 return PHY_INTERFACE_MODE_RMII;
3649 if (strcasecmp(phy_connection_type, "rgmii") == 0)
3650 return PHY_INTERFACE_MODE_RGMII;
3651 if (strcasecmp(phy_connection_type, "rgmii-id") == 0)
3652 return PHY_INTERFACE_MODE_RGMII_ID;
3653 if (strcasecmp(phy_connection_type, "rgmii-txid") == 0)
3654 return PHY_INTERFACE_MODE_RGMII_TXID;
3655 if (strcasecmp(phy_connection_type, "rgmii-rxid") == 0)
3656 return PHY_INTERFACE_MODE_RGMII_RXID;
3657 if (strcasecmp(phy_connection_type, "rtbi") == 0)
3658 return PHY_INTERFACE_MODE_RTBI;
3659 if (strcasecmp(phy_connection_type, "sgmii") == 0)
3660 return PHY_INTERFACE_MODE_SGMII;
3661
3662 return PHY_INTERFACE_MODE_MII;
3663 }
3664
3665 static int ucc_geth_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
3666 {
3667 struct ucc_geth_private *ugeth = netdev_priv(dev);
3668
3669 if (!netif_running(dev))
3670 return -EINVAL;
3671
3672 if (!ugeth->phydev)
3673 return -ENODEV;
3674
3675 return phy_mii_ioctl(ugeth->phydev, rq, cmd);
3676 }
3677
3678 static const struct net_device_ops ucc_geth_netdev_ops = {
3679 .ndo_open = ucc_geth_open,
3680 .ndo_stop = ucc_geth_close,
3681 .ndo_start_xmit = ucc_geth_start_xmit,
3682 .ndo_validate_addr = eth_validate_addr,
3683 .ndo_set_mac_address = ucc_geth_set_mac_addr,
3684 .ndo_set_rx_mode = ucc_geth_set_multi,
3685 .ndo_tx_timeout = ucc_geth_timeout,
3686 .ndo_do_ioctl = ucc_geth_ioctl,
3687 #ifdef CONFIG_NET_POLL_CONTROLLER
3688 .ndo_poll_controller = ucc_netpoll,
3689 #endif
3690 };
3691
3692 static int ucc_geth_probe(struct platform_device* ofdev)
3693 {
3694 struct device *device = &ofdev->dev;
3695 struct device_node *np = ofdev->dev.of_node;
3696 struct net_device *dev = NULL;
3697 struct ucc_geth_private *ugeth = NULL;
3698 struct ucc_geth_info *ug_info;
3699 struct resource res;
3700 int err, ucc_num, max_speed = 0;
3701 const unsigned int *prop;
3702 const char *sprop;
3703 const void *mac_addr;
3704 phy_interface_t phy_interface;
3705 static const int enet_to_speed[] = {
3706 SPEED_10, SPEED_10, SPEED_10,
3707 SPEED_100, SPEED_100, SPEED_100,
3708 SPEED_1000, SPEED_1000, SPEED_1000, SPEED_1000,
3709 };
3710 static const phy_interface_t enet_to_phy_interface[] = {
3711 PHY_INTERFACE_MODE_MII, PHY_INTERFACE_MODE_RMII,
3712 PHY_INTERFACE_MODE_RGMII, PHY_INTERFACE_MODE_MII,
3713 PHY_INTERFACE_MODE_RMII, PHY_INTERFACE_MODE_RGMII,
3714 PHY_INTERFACE_MODE_GMII, PHY_INTERFACE_MODE_RGMII,
3715 PHY_INTERFACE_MODE_TBI, PHY_INTERFACE_MODE_RTBI,
3716 PHY_INTERFACE_MODE_SGMII,
3717 };
3718
3719 ugeth_vdbg("%s: IN", __func__);
3720
3721 prop = of_get_property(np, "cell-index", NULL);
3722 if (!prop) {
3723 prop = of_get_property(np, "device-id", NULL);
3724 if (!prop)
3725 return -ENODEV;
3726 }
3727
3728 ucc_num = *prop - 1;
3729 if ((ucc_num < 0) || (ucc_num > 7))
3730 return -ENODEV;
3731
3732 ug_info = &ugeth_info[ucc_num];
3733 if (ug_info == NULL) {
3734 if (netif_msg_probe(&debug))
3735 pr_err("[%d] Missing additional data!\n", ucc_num);
3736 return -ENODEV;
3737 }
3738
3739 ug_info->uf_info.ucc_num = ucc_num;
3740
3741 sprop = of_get_property(np, "rx-clock-name", NULL);
3742 if (sprop) {
3743 ug_info->uf_info.rx_clock = qe_clock_source(sprop);
3744 if ((ug_info->uf_info.rx_clock < QE_CLK_NONE) ||
3745 (ug_info->uf_info.rx_clock > QE_CLK24)) {
3746 pr_err("invalid rx-clock-name property\n");
3747 return -EINVAL;
3748 }
3749 } else {
3750 prop = of_get_property(np, "rx-clock", NULL);
3751 if (!prop) {
3752 /* If both rx-clock-name and rx-clock are missing,
3753 we want to tell people to use rx-clock-name. */
3754 pr_err("missing rx-clock-name property\n");
3755 return -EINVAL;
3756 }
3757 if ((*prop < QE_CLK_NONE) || (*prop > QE_CLK24)) {
3758 pr_err("invalid rx-clock property\n");
3759 return -EINVAL;
3760 }
3761 ug_info->uf_info.rx_clock = *prop;
3762 }
3763
3764 sprop = of_get_property(np, "tx-clock-name", NULL);
3765 if (sprop) {
3766 ug_info->uf_info.tx_clock = qe_clock_source(sprop);
3767 if ((ug_info->uf_info.tx_clock < QE_CLK_NONE) ||
3768 (ug_info->uf_info.tx_clock > QE_CLK24)) {
3769 pr_err("invalid tx-clock-name property\n");
3770 return -EINVAL;
3771 }
3772 } else {
3773 prop = of_get_property(np, "tx-clock", NULL);
3774 if (!prop) {
3775 pr_err("missing tx-clock-name property\n");
3776 return -EINVAL;
3777 }
3778 if ((*prop < QE_CLK_NONE) || (*prop > QE_CLK24)) {
3779 pr_err("invalid tx-clock property\n");
3780 return -EINVAL;
3781 }
3782 ug_info->uf_info.tx_clock = *prop;
3783 }
3784
3785 err = of_address_to_resource(np, 0, &res);
3786 if (err)
3787 return -EINVAL;
3788
3789 ug_info->uf_info.regs = res.start;
3790 ug_info->uf_info.irq = irq_of_parse_and_map(np, 0);
3791
3792 ug_info->phy_node = of_parse_phandle(np, "phy-handle", 0);
3793 if (!ug_info->phy_node && of_phy_is_fixed_link(np)) {
3794 /*
3795 * In the case of a fixed PHY, the DT node associated
3796 * to the PHY is the Ethernet MAC DT node.
3797 */
3798 err = of_phy_register_fixed_link(np);
3799 if (err)
3800 return err;
3801 ug_info->phy_node = of_node_get(np);
3802 }
3803
3804 /* Find the TBI PHY node. If it's not there, we don't support SGMII */
3805 ug_info->tbi_node = of_parse_phandle(np, "tbi-handle", 0);
3806
3807 /* get the phy interface type, or default to MII */
3808 prop = of_get_property(np, "phy-connection-type", NULL);
3809 if (!prop) {
3810 /* handle interface property present in old trees */
3811 prop = of_get_property(ug_info->phy_node, "interface", NULL);
3812 if (prop != NULL) {
3813 phy_interface = enet_to_phy_interface[*prop];
3814 max_speed = enet_to_speed[*prop];
3815 } else
3816 phy_interface = PHY_INTERFACE_MODE_MII;
3817 } else {
3818 phy_interface = to_phy_interface((const char *)prop);
3819 }
3820
3821 /* get speed, or derive from PHY interface */
3822 if (max_speed == 0)
3823 switch (phy_interface) {
3824 case PHY_INTERFACE_MODE_GMII:
3825 case PHY_INTERFACE_MODE_RGMII:
3826 case PHY_INTERFACE_MODE_RGMII_ID:
3827 case PHY_INTERFACE_MODE_RGMII_RXID:
3828 case PHY_INTERFACE_MODE_RGMII_TXID:
3829 case PHY_INTERFACE_MODE_TBI:
3830 case PHY_INTERFACE_MODE_RTBI:
3831 case PHY_INTERFACE_MODE_SGMII:
3832 max_speed = SPEED_1000;
3833 break;
3834 default:
3835 max_speed = SPEED_100;
3836 break;
3837 }
3838
3839 if (max_speed == SPEED_1000) {
3840 unsigned int snums = qe_get_num_of_snums();
3841
3842 /* configure muram FIFOs for gigabit operation */
3843 ug_info->uf_info.urfs = UCC_GETH_URFS_GIGA_INIT;
3844 ug_info->uf_info.urfet = UCC_GETH_URFET_GIGA_INIT;
3845 ug_info->uf_info.urfset = UCC_GETH_URFSET_GIGA_INIT;
3846 ug_info->uf_info.utfs = UCC_GETH_UTFS_GIGA_INIT;
3847 ug_info->uf_info.utfet = UCC_GETH_UTFET_GIGA_INIT;
3848 ug_info->uf_info.utftt = UCC_GETH_UTFTT_GIGA_INIT;
3849 ug_info->numThreadsTx = UCC_GETH_NUM_OF_THREADS_4;
3850
3851 /* If QE's snum number is 46/76 which means we need to support
3852 * 4 UECs at 1000Base-T simultaneously, we need to allocate
3853 * more Threads to Rx.
3854 */
3855 if ((snums == 76) || (snums == 46))
3856 ug_info->numThreadsRx = UCC_GETH_NUM_OF_THREADS_6;
3857 else
3858 ug_info->numThreadsRx = UCC_GETH_NUM_OF_THREADS_4;
3859 }
3860
3861 if (netif_msg_probe(&debug))
3862 pr_info("UCC%1d at 0x%8x (irq = %d)\n",
3863 ug_info->uf_info.ucc_num + 1, ug_info->uf_info.regs,
3864 ug_info->uf_info.irq);
3865
3866 /* Create an ethernet device instance */
3867 dev = alloc_etherdev(sizeof(*ugeth));
3868
3869 if (dev == NULL) {
3870 err = -ENOMEM;
3871 goto err_deregister_fixed_link;
3872 }
3873
3874 ugeth = netdev_priv(dev);
3875 spin_lock_init(&ugeth->lock);
3876
3877 /* Create CQs for hash tables */
3878 INIT_LIST_HEAD(&ugeth->group_hash_q);
3879 INIT_LIST_HEAD(&ugeth->ind_hash_q);
3880
3881 dev_set_drvdata(device, dev);
3882
3883 /* Set the dev->base_addr to the gfar reg region */
3884 dev->base_addr = (unsigned long)(ug_info->uf_info.regs);
3885
3886 SET_NETDEV_DEV(dev, device);
3887
3888 /* Fill in the dev structure */
3889 uec_set_ethtool_ops(dev);
3890 dev->netdev_ops = &ucc_geth_netdev_ops;
3891 dev->watchdog_timeo = TX_TIMEOUT;
3892 INIT_WORK(&ugeth->timeout_work, ucc_geth_timeout_work);
3893 netif_napi_add(dev, &ugeth->napi, ucc_geth_poll, 64);
3894 dev->mtu = 1500;
3895
3896 ugeth->msg_enable = netif_msg_init(debug.msg_enable, UGETH_MSG_DEFAULT);
3897 ugeth->phy_interface = phy_interface;
3898 ugeth->max_speed = max_speed;
3899
3900 /* Carrier starts down, phylib will bring it up */
3901 netif_carrier_off(dev);
3902
3903 err = register_netdev(dev);
3904 if (err) {
3905 if (netif_msg_probe(ugeth))
3906 pr_err("%s: Cannot register net device, aborting\n",
3907 dev->name);
3908 goto err_free_netdev;
3909 }
3910
3911 mac_addr = of_get_mac_address(np);
3912 if (mac_addr)
3913 memcpy(dev->dev_addr, mac_addr, ETH_ALEN);
3914
3915 ugeth->ug_info = ug_info;
3916 ugeth->dev = device;
3917 ugeth->ndev = dev;
3918 ugeth->node = np;
3919
3920 return 0;
3921
3922 err_free_netdev:
3923 free_netdev(dev);
3924 err_deregister_fixed_link:
3925 if (of_phy_is_fixed_link(np))
3926 of_phy_deregister_fixed_link(np);
3927 of_node_put(ug_info->tbi_node);
3928 of_node_put(ug_info->phy_node);
3929
3930 return err;
3931 }
3932
3933 static int ucc_geth_remove(struct platform_device* ofdev)
3934 {
3935 struct net_device *dev = platform_get_drvdata(ofdev);
3936 struct ucc_geth_private *ugeth = netdev_priv(dev);
3937 struct device_node *np = ofdev->dev.of_node;
3938
3939 unregister_netdev(dev);
3940 free_netdev(dev);
3941 ucc_geth_memclean(ugeth);
3942 if (of_phy_is_fixed_link(np))
3943 of_phy_deregister_fixed_link(np);
3944 of_node_put(ugeth->ug_info->tbi_node);
3945 of_node_put(ugeth->ug_info->phy_node);
3946
3947 return 0;
3948 }
3949
3950 static const struct of_device_id ucc_geth_match[] = {
3951 {
3952 .type = "network",
3953 .compatible = "ucc_geth",
3954 },
3955 {},
3956 };
3957
3958 MODULE_DEVICE_TABLE(of, ucc_geth_match);
3959
3960 static struct platform_driver ucc_geth_driver = {
3961 .driver = {
3962 .name = DRV_NAME,
3963 .of_match_table = ucc_geth_match,
3964 },
3965 .probe = ucc_geth_probe,
3966 .remove = ucc_geth_remove,
3967 .suspend = ucc_geth_suspend,
3968 .resume = ucc_geth_resume,
3969 };
3970
3971 static int __init ucc_geth_init(void)
3972 {
3973 int i, ret;
3974
3975 if (netif_msg_drv(&debug))
3976 pr_info(DRV_DESC "\n");
3977 for (i = 0; i < 8; i++)
3978 memcpy(&(ugeth_info[i]), &ugeth_primary_info,
3979 sizeof(ugeth_primary_info));
3980
3981 ret = platform_driver_register(&ucc_geth_driver);
3982
3983 return ret;
3984 }
3985
3986 static void __exit ucc_geth_exit(void)
3987 {
3988 platform_driver_unregister(&ucc_geth_driver);
3989 }
3990
3991 module_init(ucc_geth_init);
3992 module_exit(ucc_geth_exit);
3993
3994 MODULE_AUTHOR("Freescale Semiconductor, Inc");
3995 MODULE_DESCRIPTION(DRV_DESC);
3996 MODULE_VERSION(DRV_VERSION);
3997 MODULE_LICENSE("GPL");
Linux with added FPC-III support