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1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * Copyright (C) 2006-2009 Freescale Semicondutor, Inc. All rights reserved.
4 *
5 * Author: Shlomi Gridish <gridish@freescale.com>
6 * Li Yang <leoli@freescale.com>
7 *
8 * Description:
9 * QE UCC Gigabit Ethernet Driver
10 */
11
12#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
13
14#include <linux/kernel.h>
15#include <linux/init.h>
16#include <linux/errno.h>
17#include <linux/slab.h>
18#include <linux/stddef.h>
19#include <linux/module.h>
20#include <linux/interrupt.h>
21#include <linux/netdevice.h>
22#include <linux/etherdevice.h>
23#include <linux/skbuff.h>
24#include <linux/spinlock.h>
25#include <linux/mm.h>
26#include <linux/dma-mapping.h>
27#include <linux/mii.h>
28#include <linux/phy.h>
29#include <linux/phy_fixed.h>
30#include <linux/workqueue.h>
31#include <linux/of_address.h>
32#include <linux/of_irq.h>
33#include <linux/of_mdio.h>
34#include <linux/of_net.h>
35#include <linux/of_platform.h>
36
37#include <linux/uaccess.h>
38#include <asm/irq.h>
39#include <asm/io.h>
40#include <soc/fsl/qe/immap_qe.h>
41#include <soc/fsl/qe/qe.h>
42#include <soc/fsl/qe/ucc.h>
43#include <soc/fsl/qe/ucc_fast.h>
44#include <asm/machdep.h>
45
46#include "ucc_geth.h"
47
48#undef DEBUG
49
50#define ugeth_printk(level, format, arg...) \
51 printk(level format "\n", ## arg)
52
53#define ugeth_dbg(format, arg...) \
54 ugeth_printk(KERN_DEBUG , format , ## arg)
55
56#ifdef UGETH_VERBOSE_DEBUG
57#define ugeth_vdbg ugeth_dbg
58#else
59#define ugeth_vdbg(fmt, args...) do { } while (0)
60#endif /* UGETH_VERBOSE_DEBUG */
61#define UGETH_MSG_DEFAULT (NETIF_MSG_IFUP << 1 ) - 1
62
63
64static DEFINE_SPINLOCK(ugeth_lock);
65
66static struct {
67 u32 msg_enable;
68} debug = { -1 };
69
70module_param_named(debug, debug.msg_enable, int, 0);
71MODULE_PARM_DESC(debug, "Debug verbosity level (0=none, ..., 0xffff=all)");
72
73static int ucc_geth_thread_count(enum ucc_geth_num_of_threads idx)
74{
75 static const u8 count[] = {
76 [UCC_GETH_NUM_OF_THREADS_1] = 1,
77 [UCC_GETH_NUM_OF_THREADS_2] = 2,
78 [UCC_GETH_NUM_OF_THREADS_4] = 4,
79 [UCC_GETH_NUM_OF_THREADS_6] = 6,
80 [UCC_GETH_NUM_OF_THREADS_8] = 8,
81 };
82 if (idx >= ARRAY_SIZE(count))
83 return 0;
84 return count[idx];
85}
86
87static inline int ucc_geth_tx_queues(const struct ucc_geth_info *info)
88{
89 return 1;
90}
91
92static inline int ucc_geth_rx_queues(const struct ucc_geth_info *info)
93{
94 return 1;
95}
96
97static const struct ucc_geth_info ugeth_primary_info = {
98 .uf_info = {
99 .rtsm = UCC_FAST_SEND_IDLES_BETWEEN_FRAMES,
100 .max_rx_buf_length = 1536,
101 /* adjusted at startup if max-speed 1000 */
102 .urfs = UCC_GETH_URFS_INIT,
103 .urfet = UCC_GETH_URFET_INIT,
104 .urfset = UCC_GETH_URFSET_INIT,
105 .utfs = UCC_GETH_UTFS_INIT,
106 .utfet = UCC_GETH_UTFET_INIT,
107 .utftt = UCC_GETH_UTFTT_INIT,
108 .ufpt = 256,
109 .mode = UCC_FAST_PROTOCOL_MODE_ETHERNET,
110 .ttx_trx = UCC_FAST_GUMR_TRANSPARENT_TTX_TRX_NORMAL,
111 .tenc = UCC_FAST_TX_ENCODING_NRZ,
112 .renc = UCC_FAST_RX_ENCODING_NRZ,
113 .tcrc = UCC_FAST_16_BIT_CRC,
114 .synl = UCC_FAST_SYNC_LEN_NOT_USED,
115 },
116 .extendedFilteringChainPointer = ((uint32_t) NULL),
117 .typeorlen = 3072 /*1536 */ ,
118 .nonBackToBackIfgPart1 = 0x40,
119 .nonBackToBackIfgPart2 = 0x60,
120 .miminumInterFrameGapEnforcement = 0x50,
121 .backToBackInterFrameGap = 0x60,
122 .mblinterval = 128,
123 .nortsrbytetime = 5,
124 .fracsiz = 1,
125 .strictpriorityq = 0xff,
126 .altBebTruncation = 0xa,
127 .excessDefer = 1,
128 .maxRetransmission = 0xf,
129 .collisionWindow = 0x37,
130 .receiveFlowControl = 1,
131 .transmitFlowControl = 1,
132 .maxGroupAddrInHash = 4,
133 .maxIndAddrInHash = 4,
134 .prel = 7,
135 .maxFrameLength = 1518+16, /* Add extra bytes for VLANs etc. */
136 .minFrameLength = 64,
137 .maxD1Length = 1520+16, /* Add extra bytes for VLANs etc. */
138 .maxD2Length = 1520+16, /* Add extra bytes for VLANs etc. */
139 .vlantype = 0x8100,
140 .ecamptr = ((uint32_t) NULL),
141 .eventRegMask = UCCE_OTHER,
142 .pausePeriod = 0xf000,
143 .interruptcoalescingmaxvalue = {1, 1, 1, 1, 1, 1, 1, 1},
144 .bdRingLenTx = {
145 TX_BD_RING_LEN,
146 TX_BD_RING_LEN,
147 TX_BD_RING_LEN,
148 TX_BD_RING_LEN,
149 TX_BD_RING_LEN,
150 TX_BD_RING_LEN,
151 TX_BD_RING_LEN,
152 TX_BD_RING_LEN},
153
154 .bdRingLenRx = {
155 RX_BD_RING_LEN,
156 RX_BD_RING_LEN,
157 RX_BD_RING_LEN,
158 RX_BD_RING_LEN,
159 RX_BD_RING_LEN,
160 RX_BD_RING_LEN,
161 RX_BD_RING_LEN,
162 RX_BD_RING_LEN},
163
164 .numStationAddresses = UCC_GETH_NUM_OF_STATION_ADDRESSES_1,
165 .largestexternallookupkeysize =
166 QE_FLTR_LARGEST_EXTERNAL_TABLE_LOOKUP_KEY_SIZE_NONE,
167 .statisticsMode = UCC_GETH_STATISTICS_GATHERING_MODE_HARDWARE |
168 UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_TX |
169 UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_RX,
170 .vlanOperationTagged = UCC_GETH_VLAN_OPERATION_TAGGED_NOP,
171 .vlanOperationNonTagged = UCC_GETH_VLAN_OPERATION_NON_TAGGED_NOP,
172 .rxQoSMode = UCC_GETH_QOS_MODE_DEFAULT,
173 .aufc = UPSMR_AUTOMATIC_FLOW_CONTROL_MODE_NONE,
174 .padAndCrc = MACCFG2_PAD_AND_CRC_MODE_PAD_AND_CRC,
175 .numThreadsTx = UCC_GETH_NUM_OF_THREADS_1,
176 .numThreadsRx = UCC_GETH_NUM_OF_THREADS_1,
177 .riscTx = QE_RISC_ALLOCATION_RISC1_AND_RISC2,
178 .riscRx = QE_RISC_ALLOCATION_RISC1_AND_RISC2,
179};
180
181#ifdef DEBUG
182static void mem_disp(u8 *addr, int size)
183{
184 u8 *i;
185 int size16Aling = (size >> 4) << 4;
186 int size4Aling = (size >> 2) << 2;
187 int notAlign = 0;
188 if (size % 16)
189 notAlign = 1;
190
191 for (i = addr; (u32) i < (u32) addr + size16Aling; i += 16)
192 printk("0x%08x: %08x %08x %08x %08x\r\n",
193 (u32) i,
194 *((u32 *) (i)),
195 *((u32 *) (i + 4)),
196 *((u32 *) (i + 8)), *((u32 *) (i + 12)));
197 if (notAlign == 1)
198 printk("0x%08x: ", (u32) i);
199 for (; (u32) i < (u32) addr + size4Aling; i += 4)
200 printk("%08x ", *((u32 *) (i)));
201 for (; (u32) i < (u32) addr + size; i++)
202 printk("%02x", *((i)));
203 if (notAlign == 1)
204 printk("\r\n");
205}
206#endif /* DEBUG */
207
208static struct list_head *dequeue(struct list_head *lh)
209{
210 unsigned long flags;
211
212 spin_lock_irqsave(&ugeth_lock, flags);
213 if (!list_empty(lh)) {
214 struct list_head *node = lh->next;
215 list_del(node);
216 spin_unlock_irqrestore(&ugeth_lock, flags);
217 return node;
218 } else {
219 spin_unlock_irqrestore(&ugeth_lock, flags);
220 return NULL;
221 }
222}
223
224static struct sk_buff *get_new_skb(struct ucc_geth_private *ugeth,
225 u8 __iomem *bd)
226{
227 struct sk_buff *skb;
228
229 skb = netdev_alloc_skb(ugeth->ndev,
230 ugeth->ug_info->uf_info.max_rx_buf_length +
231 UCC_GETH_RX_DATA_BUF_ALIGNMENT);
232 if (!skb)
233 return NULL;
234
235 /* We need the data buffer to be aligned properly. We will reserve
236 * as many bytes as needed to align the data properly
237 */
238 skb_reserve(skb,
239 UCC_GETH_RX_DATA_BUF_ALIGNMENT -
240 (((unsigned)skb->data) & (UCC_GETH_RX_DATA_BUF_ALIGNMENT -
241 1)));
242
243 out_be32(&((struct qe_bd __iomem *)bd)->buf,
244 dma_map_single(ugeth->dev,
245 skb->data,
246 ugeth->ug_info->uf_info.max_rx_buf_length +
247 UCC_GETH_RX_DATA_BUF_ALIGNMENT,
248 DMA_FROM_DEVICE));
249
250 out_be32((u32 __iomem *)bd,
251 (R_E | R_I | (in_be32((u32 __iomem*)bd) & R_W)));
252
253 return skb;
254}
255
256static int rx_bd_buffer_set(struct ucc_geth_private *ugeth, u8 rxQ)
257{
258 u8 __iomem *bd;
259 u32 bd_status;
260 struct sk_buff *skb;
261 int i;
262
263 bd = ugeth->p_rx_bd_ring[rxQ];
264 i = 0;
265
266 do {
267 bd_status = in_be32((u32 __iomem *)bd);
268 skb = get_new_skb(ugeth, bd);
269
270 if (!skb) /* If can not allocate data buffer,
271 abort. Cleanup will be elsewhere */
272 return -ENOMEM;
273
274 ugeth->rx_skbuff[rxQ][i] = skb;
275
276 /* advance the BD pointer */
277 bd += sizeof(struct qe_bd);
278 i++;
279 } while (!(bd_status & R_W));
280
281 return 0;
282}
283
284static int fill_init_enet_entries(struct ucc_geth_private *ugeth,
285 u32 *p_start,
286 u8 num_entries,
287 u32 thread_size,
288 u32 thread_alignment,
289 unsigned int risc,
290 int skip_page_for_first_entry)
291{
292 u32 init_enet_offset;
293 u8 i;
294 int snum;
295
296 for (i = 0; i < num_entries; i++) {
297 if ((snum = qe_get_snum()) < 0) {
298 if (netif_msg_ifup(ugeth))
299 pr_err("Can not get SNUM\n");
300 return snum;
301 }
302 if ((i == 0) && skip_page_for_first_entry)
303 /* First entry of Rx does not have page */
304 init_enet_offset = 0;
305 else {
306 init_enet_offset =
307 qe_muram_alloc(thread_size, thread_alignment);
308 if (IS_ERR_VALUE(init_enet_offset)) {
309 if (netif_msg_ifup(ugeth))
310 pr_err("Can not allocate DPRAM memory\n");
311 qe_put_snum((u8) snum);
312 return -ENOMEM;
313 }
314 }
315 *(p_start++) =
316 ((u8) snum << ENET_INIT_PARAM_SNUM_SHIFT) | init_enet_offset
317 | risc;
318 }
319
320 return 0;
321}
322
323static int return_init_enet_entries(struct ucc_geth_private *ugeth,
324 u32 *p_start,
325 u8 num_entries,
326 unsigned int risc,
327 int skip_page_for_first_entry)
328{
329 u32 init_enet_offset;
330 u8 i;
331 int snum;
332
333 for (i = 0; i < num_entries; i++) {
334 u32 val = *p_start;
335
336 /* Check that this entry was actually valid --
337 needed in case failed in allocations */
338 if ((val & ENET_INIT_PARAM_RISC_MASK) == risc) {
339 snum =
340 (u32) (val & ENET_INIT_PARAM_SNUM_MASK) >>
341 ENET_INIT_PARAM_SNUM_SHIFT;
342 qe_put_snum((u8) snum);
343 if (!((i == 0) && skip_page_for_first_entry)) {
344 /* First entry of Rx does not have page */
345 init_enet_offset =
346 (val & ENET_INIT_PARAM_PTR_MASK);
347 qe_muram_free(init_enet_offset);
348 }
349 *p_start++ = 0;
350 }
351 }
352
353 return 0;
354}
355
356#ifdef DEBUG
357static int dump_init_enet_entries(struct ucc_geth_private *ugeth,
358 u32 __iomem *p_start,
359 u8 num_entries,
360 u32 thread_size,
361 unsigned int risc,
362 int skip_page_for_first_entry)
363{
364 u32 init_enet_offset;
365 u8 i;
366 int snum;
367
368 for (i = 0; i < num_entries; i++) {
369 u32 val = in_be32(p_start);
370
371 /* Check that this entry was actually valid --
372 needed in case failed in allocations */
373 if ((val & ENET_INIT_PARAM_RISC_MASK) == risc) {
374 snum =
375 (u32) (val & ENET_INIT_PARAM_SNUM_MASK) >>
376 ENET_INIT_PARAM_SNUM_SHIFT;
377 qe_put_snum((u8) snum);
378 if (!((i == 0) && skip_page_for_first_entry)) {
379 /* First entry of Rx does not have page */
380 init_enet_offset =
381 (in_be32(p_start) &
382 ENET_INIT_PARAM_PTR_MASK);
383 pr_info("Init enet entry %d:\n", i);
384 pr_info("Base address: 0x%08x\n",
385 (u32)qe_muram_addr(init_enet_offset));
386 mem_disp(qe_muram_addr(init_enet_offset),
387 thread_size);
388 }
389 p_start++;
390 }
391 }
392
393 return 0;
394}
395#endif
396
397static void put_enet_addr_container(struct enet_addr_container *enet_addr_cont)
398{
399 kfree(enet_addr_cont);
400}
401
402static void set_mac_addr(__be16 __iomem *reg, u8 *mac)
403{
404 out_be16(®[0], ((u16)mac[5] << 8) | mac[4]);
405 out_be16(®[1], ((u16)mac[3] << 8) | mac[2]);
406 out_be16(®[2], ((u16)mac[1] << 8) | mac[0]);
407}
408
409static int hw_clear_addr_in_paddr(struct ucc_geth_private *ugeth, u8 paddr_num)
410{
411 struct ucc_geth_82xx_address_filtering_pram __iomem *p_82xx_addr_filt;
412
413 if (paddr_num >= NUM_OF_PADDRS) {
414 pr_warn("%s: Invalid paddr_num: %u\n", __func__, paddr_num);
415 return -EINVAL;
416 }
417
418 p_82xx_addr_filt =
419 (struct ucc_geth_82xx_address_filtering_pram __iomem *) ugeth->p_rx_glbl_pram->
420 addressfiltering;
421
422 /* Writing address ff.ff.ff.ff.ff.ff disables address
423 recognition for this register */
424 out_be16(&p_82xx_addr_filt->paddr[paddr_num].h, 0xffff);
425 out_be16(&p_82xx_addr_filt->paddr[paddr_num].m, 0xffff);
426 out_be16(&p_82xx_addr_filt->paddr[paddr_num].l, 0xffff);
427
428 return 0;
429}
430
431static void hw_add_addr_in_hash(struct ucc_geth_private *ugeth,
432 u8 *p_enet_addr)
433{
434 struct ucc_geth_82xx_address_filtering_pram __iomem *p_82xx_addr_filt;
435 u32 cecr_subblock;
436
437 p_82xx_addr_filt =
438 (struct ucc_geth_82xx_address_filtering_pram __iomem *) ugeth->p_rx_glbl_pram->
439 addressfiltering;
440
441 cecr_subblock =
442 ucc_fast_get_qe_cr_subblock(ugeth->ug_info->uf_info.ucc_num);
443
444 /* Ethernet frames are defined in Little Endian mode,
445 therefore to insert */
446 /* the address to the hash (Big Endian mode), we reverse the bytes.*/
447
448 set_mac_addr(&p_82xx_addr_filt->taddr.h, p_enet_addr);
449
450 qe_issue_cmd(QE_SET_GROUP_ADDRESS, cecr_subblock,
451 QE_CR_PROTOCOL_ETHERNET, 0);
452}
453
454#ifdef DEBUG
455static void get_statistics(struct ucc_geth_private *ugeth,
456 struct ucc_geth_tx_firmware_statistics *
457 tx_firmware_statistics,
458 struct ucc_geth_rx_firmware_statistics *
459 rx_firmware_statistics,
460 struct ucc_geth_hardware_statistics *hardware_statistics)
461{
462 struct ucc_fast __iomem *uf_regs;
463 struct ucc_geth __iomem *ug_regs;
464 struct ucc_geth_tx_firmware_statistics_pram *p_tx_fw_statistics_pram;
465 struct ucc_geth_rx_firmware_statistics_pram *p_rx_fw_statistics_pram;
466
467 ug_regs = ugeth->ug_regs;
468 uf_regs = (struct ucc_fast __iomem *) ug_regs;
469 p_tx_fw_statistics_pram = ugeth->p_tx_fw_statistics_pram;
470 p_rx_fw_statistics_pram = ugeth->p_rx_fw_statistics_pram;
471
472 /* Tx firmware only if user handed pointer and driver actually
473 gathers Tx firmware statistics */
474 if (tx_firmware_statistics && p_tx_fw_statistics_pram) {
475 tx_firmware_statistics->sicoltx =
476 in_be32(&p_tx_fw_statistics_pram->sicoltx);
477 tx_firmware_statistics->mulcoltx =
478 in_be32(&p_tx_fw_statistics_pram->mulcoltx);
479 tx_firmware_statistics->latecoltxfr =
480 in_be32(&p_tx_fw_statistics_pram->latecoltxfr);
481 tx_firmware_statistics->frabortduecol =
482 in_be32(&p_tx_fw_statistics_pram->frabortduecol);
483 tx_firmware_statistics->frlostinmactxer =
484 in_be32(&p_tx_fw_statistics_pram->frlostinmactxer);
485 tx_firmware_statistics->carriersenseertx =
486 in_be32(&p_tx_fw_statistics_pram->carriersenseertx);
487 tx_firmware_statistics->frtxok =
488 in_be32(&p_tx_fw_statistics_pram->frtxok);
489 tx_firmware_statistics->txfrexcessivedefer =
490 in_be32(&p_tx_fw_statistics_pram->txfrexcessivedefer);
491 tx_firmware_statistics->txpkts256 =
492 in_be32(&p_tx_fw_statistics_pram->txpkts256);
493 tx_firmware_statistics->txpkts512 =
494 in_be32(&p_tx_fw_statistics_pram->txpkts512);
495 tx_firmware_statistics->txpkts1024 =
496 in_be32(&p_tx_fw_statistics_pram->txpkts1024);
497 tx_firmware_statistics->txpktsjumbo =
498 in_be32(&p_tx_fw_statistics_pram->txpktsjumbo);
499 }
500
501 /* Rx firmware only if user handed pointer and driver actually
502 * gathers Rx firmware statistics */
503 if (rx_firmware_statistics && p_rx_fw_statistics_pram) {
504 int i;
505 rx_firmware_statistics->frrxfcser =
506 in_be32(&p_rx_fw_statistics_pram->frrxfcser);
507 rx_firmware_statistics->fraligner =
508 in_be32(&p_rx_fw_statistics_pram->fraligner);
509 rx_firmware_statistics->inrangelenrxer =
510 in_be32(&p_rx_fw_statistics_pram->inrangelenrxer);
511 rx_firmware_statistics->outrangelenrxer =
512 in_be32(&p_rx_fw_statistics_pram->outrangelenrxer);
513 rx_firmware_statistics->frtoolong =
514 in_be32(&p_rx_fw_statistics_pram->frtoolong);
515 rx_firmware_statistics->runt =
516 in_be32(&p_rx_fw_statistics_pram->runt);
517 rx_firmware_statistics->verylongevent =
518 in_be32(&p_rx_fw_statistics_pram->verylongevent);
519 rx_firmware_statistics->symbolerror =
520 in_be32(&p_rx_fw_statistics_pram->symbolerror);
521 rx_firmware_statistics->dropbsy =
522 in_be32(&p_rx_fw_statistics_pram->dropbsy);
523 for (i = 0; i < 0x8; i++)
524 rx_firmware_statistics->res0[i] =
525 p_rx_fw_statistics_pram->res0[i];
526 rx_firmware_statistics->mismatchdrop =
527 in_be32(&p_rx_fw_statistics_pram->mismatchdrop);
528 rx_firmware_statistics->underpkts =
529 in_be32(&p_rx_fw_statistics_pram->underpkts);
530 rx_firmware_statistics->pkts256 =
531 in_be32(&p_rx_fw_statistics_pram->pkts256);
532 rx_firmware_statistics->pkts512 =
533 in_be32(&p_rx_fw_statistics_pram->pkts512);
534 rx_firmware_statistics->pkts1024 =
535 in_be32(&p_rx_fw_statistics_pram->pkts1024);
536 rx_firmware_statistics->pktsjumbo =
537 in_be32(&p_rx_fw_statistics_pram->pktsjumbo);
538 rx_firmware_statistics->frlossinmacer =
539 in_be32(&p_rx_fw_statistics_pram->frlossinmacer);
540 rx_firmware_statistics->pausefr =
541 in_be32(&p_rx_fw_statistics_pram->pausefr);
542 for (i = 0; i < 0x4; i++)
543 rx_firmware_statistics->res1[i] =
544 p_rx_fw_statistics_pram->res1[i];
545 rx_firmware_statistics->removevlan =
546 in_be32(&p_rx_fw_statistics_pram->removevlan);
547 rx_firmware_statistics->replacevlan =
548 in_be32(&p_rx_fw_statistics_pram->replacevlan);
549 rx_firmware_statistics->insertvlan =
550 in_be32(&p_rx_fw_statistics_pram->insertvlan);
551 }
552
553 /* Hardware only if user handed pointer and driver actually
554 gathers hardware statistics */
555 if (hardware_statistics &&
556 (in_be32(&uf_regs->upsmr) & UCC_GETH_UPSMR_HSE)) {
557 hardware_statistics->tx64 = in_be32(&ug_regs->tx64);
558 hardware_statistics->tx127 = in_be32(&ug_regs->tx127);
559 hardware_statistics->tx255 = in_be32(&ug_regs->tx255);
560 hardware_statistics->rx64 = in_be32(&ug_regs->rx64);
561 hardware_statistics->rx127 = in_be32(&ug_regs->rx127);
562 hardware_statistics->rx255 = in_be32(&ug_regs->rx255);
563 hardware_statistics->txok = in_be32(&ug_regs->txok);
564 hardware_statistics->txcf = in_be16(&ug_regs->txcf);
565 hardware_statistics->tmca = in_be32(&ug_regs->tmca);
566 hardware_statistics->tbca = in_be32(&ug_regs->tbca);
567 hardware_statistics->rxfok = in_be32(&ug_regs->rxfok);
568 hardware_statistics->rxbok = in_be32(&ug_regs->rxbok);
569 hardware_statistics->rbyt = in_be32(&ug_regs->rbyt);
570 hardware_statistics->rmca = in_be32(&ug_regs->rmca);
571 hardware_statistics->rbca = in_be32(&ug_regs->rbca);
572 }
573}
574
575static void dump_bds(struct ucc_geth_private *ugeth)
576{
577 int i;
578 int length;
579
580 for (i = 0; i < ucc_geth_tx_queues(ugeth->ug_info); i++) {
581 if (ugeth->p_tx_bd_ring[i]) {
582 length =
583 (ugeth->ug_info->bdRingLenTx[i] *
584 sizeof(struct qe_bd));
585 pr_info("TX BDs[%d]\n", i);
586 mem_disp(ugeth->p_tx_bd_ring[i], length);
587 }
588 }
589 for (i = 0; i < ucc_geth_rx_queues(ugeth->ug_info); i++) {
590 if (ugeth->p_rx_bd_ring[i]) {
591 length =
592 (ugeth->ug_info->bdRingLenRx[i] *
593 sizeof(struct qe_bd));
594 pr_info("RX BDs[%d]\n", i);
595 mem_disp(ugeth->p_rx_bd_ring[i], length);
596 }
597 }
598}
599
600static void dump_regs(struct ucc_geth_private *ugeth)
601{
602 int i;
603
604 pr_info("UCC%d Geth registers:\n", ugeth->ug_info->uf_info.ucc_num + 1);
605 pr_info("Base address: 0x%08x\n", (u32)ugeth->ug_regs);
606
607 pr_info("maccfg1 : addr - 0x%08x, val - 0x%08x\n",
608 (u32)&ugeth->ug_regs->maccfg1,
609 in_be32(&ugeth->ug_regs->maccfg1));
610 pr_info("maccfg2 : addr - 0x%08x, val - 0x%08x\n",
611 (u32)&ugeth->ug_regs->maccfg2,
612 in_be32(&ugeth->ug_regs->maccfg2));
613 pr_info("ipgifg : addr - 0x%08x, val - 0x%08x\n",
614 (u32)&ugeth->ug_regs->ipgifg,
615 in_be32(&ugeth->ug_regs->ipgifg));
616 pr_info("hafdup : addr - 0x%08x, val - 0x%08x\n",
617 (u32)&ugeth->ug_regs->hafdup,
618 in_be32(&ugeth->ug_regs->hafdup));
619 pr_info("ifctl : addr - 0x%08x, val - 0x%08x\n",
620 (u32)&ugeth->ug_regs->ifctl,
621 in_be32(&ugeth->ug_regs->ifctl));
622 pr_info("ifstat : addr - 0x%08x, val - 0x%08x\n",
623 (u32)&ugeth->ug_regs->ifstat,
624 in_be32(&ugeth->ug_regs->ifstat));
625 pr_info("macstnaddr1: addr - 0x%08x, val - 0x%08x\n",
626 (u32)&ugeth->ug_regs->macstnaddr1,
627 in_be32(&ugeth->ug_regs->macstnaddr1));
628 pr_info("macstnaddr2: addr - 0x%08x, val - 0x%08x\n",
629 (u32)&ugeth->ug_regs->macstnaddr2,
630 in_be32(&ugeth->ug_regs->macstnaddr2));
631 pr_info("uempr : addr - 0x%08x, val - 0x%08x\n",
632 (u32)&ugeth->ug_regs->uempr,
633 in_be32(&ugeth->ug_regs->uempr));
634 pr_info("utbipar : addr - 0x%08x, val - 0x%08x\n",
635 (u32)&ugeth->ug_regs->utbipar,
636 in_be32(&ugeth->ug_regs->utbipar));
637 pr_info("uescr : addr - 0x%08x, val - 0x%04x\n",
638 (u32)&ugeth->ug_regs->uescr,
639 in_be16(&ugeth->ug_regs->uescr));
640 pr_info("tx64 : addr - 0x%08x, val - 0x%08x\n",
641 (u32)&ugeth->ug_regs->tx64,
642 in_be32(&ugeth->ug_regs->tx64));
643 pr_info("tx127 : addr - 0x%08x, val - 0x%08x\n",
644 (u32)&ugeth->ug_regs->tx127,
645 in_be32(&ugeth->ug_regs->tx127));
646 pr_info("tx255 : addr - 0x%08x, val - 0x%08x\n",
647 (u32)&ugeth->ug_regs->tx255,
648 in_be32(&ugeth->ug_regs->tx255));
649 pr_info("rx64 : addr - 0x%08x, val - 0x%08x\n",
650 (u32)&ugeth->ug_regs->rx64,
651 in_be32(&ugeth->ug_regs->rx64));
652 pr_info("rx127 : addr - 0x%08x, val - 0x%08x\n",
653 (u32)&ugeth->ug_regs->rx127,
654 in_be32(&ugeth->ug_regs->rx127));
655 pr_info("rx255 : addr - 0x%08x, val - 0x%08x\n",
656 (u32)&ugeth->ug_regs->rx255,
657 in_be32(&ugeth->ug_regs->rx255));
658 pr_info("txok : addr - 0x%08x, val - 0x%08x\n",
659 (u32)&ugeth->ug_regs->txok,
660 in_be32(&ugeth->ug_regs->txok));
661 pr_info("txcf : addr - 0x%08x, val - 0x%04x\n",
662 (u32)&ugeth->ug_regs->txcf,
663 in_be16(&ugeth->ug_regs->txcf));
664 pr_info("tmca : addr - 0x%08x, val - 0x%08x\n",
665 (u32)&ugeth->ug_regs->tmca,
666 in_be32(&ugeth->ug_regs->tmca));
667 pr_info("tbca : addr - 0x%08x, val - 0x%08x\n",
668 (u32)&ugeth->ug_regs->tbca,
669 in_be32(&ugeth->ug_regs->tbca));
670 pr_info("rxfok : addr - 0x%08x, val - 0x%08x\n",
671 (u32)&ugeth->ug_regs->rxfok,
672 in_be32(&ugeth->ug_regs->rxfok));
673 pr_info("rxbok : addr - 0x%08x, val - 0x%08x\n",
674 (u32)&ugeth->ug_regs->rxbok,
675 in_be32(&ugeth->ug_regs->rxbok));
676 pr_info("rbyt : addr - 0x%08x, val - 0x%08x\n",
677 (u32)&ugeth->ug_regs->rbyt,
678 in_be32(&ugeth->ug_regs->rbyt));
679 pr_info("rmca : addr - 0x%08x, val - 0x%08x\n",
680 (u32)&ugeth->ug_regs->rmca,
681 in_be32(&ugeth->ug_regs->rmca));
682 pr_info("rbca : addr - 0x%08x, val - 0x%08x\n",
683 (u32)&ugeth->ug_regs->rbca,
684 in_be32(&ugeth->ug_regs->rbca));
685 pr_info("scar : addr - 0x%08x, val - 0x%08x\n",
686 (u32)&ugeth->ug_regs->scar,
687 in_be32(&ugeth->ug_regs->scar));
688 pr_info("scam : addr - 0x%08x, val - 0x%08x\n",
689 (u32)&ugeth->ug_regs->scam,
690 in_be32(&ugeth->ug_regs->scam));
691
692 if (ugeth->p_thread_data_tx) {
693 int count = ucc_geth_thread_count(ugeth->ug_info->numThreadsTx);
694
695 pr_info("Thread data TXs:\n");
696 pr_info("Base address: 0x%08x\n",
697 (u32)ugeth->p_thread_data_tx);
698 for (i = 0; i < count; i++) {
699 pr_info("Thread data TX[%d]:\n", i);
700 pr_info("Base address: 0x%08x\n",
701 (u32)&ugeth->p_thread_data_tx[i]);
702 mem_disp((u8 *) & ugeth->p_thread_data_tx[i],
703 sizeof(struct ucc_geth_thread_data_tx));
704 }
705 }
706 if (ugeth->p_thread_data_rx) {
707 int count = ucc_geth_thread_count(ugeth->ug_info->numThreadsRx);
708
709 pr_info("Thread data RX:\n");
710 pr_info("Base address: 0x%08x\n",
711 (u32)ugeth->p_thread_data_rx);
712 for (i = 0; i < count; i++) {
713 pr_info("Thread data RX[%d]:\n", i);
714 pr_info("Base address: 0x%08x\n",
715 (u32)&ugeth->p_thread_data_rx[i]);
716 mem_disp((u8 *) & ugeth->p_thread_data_rx[i],
717 sizeof(struct ucc_geth_thread_data_rx));
718 }
719 }
720 if (ugeth->p_exf_glbl_param) {
721 pr_info("EXF global param:\n");
722 pr_info("Base address: 0x%08x\n",
723 (u32)ugeth->p_exf_glbl_param);
724 mem_disp((u8 *) ugeth->p_exf_glbl_param,
725 sizeof(*ugeth->p_exf_glbl_param));
726 }
727 if (ugeth->p_tx_glbl_pram) {
728 pr_info("TX global param:\n");
729 pr_info("Base address: 0x%08x\n", (u32)ugeth->p_tx_glbl_pram);
730 pr_info("temoder : addr - 0x%08x, val - 0x%04x\n",
731 (u32)&ugeth->p_tx_glbl_pram->temoder,
732 in_be16(&ugeth->p_tx_glbl_pram->temoder));
733 pr_info("sqptr : addr - 0x%08x, val - 0x%08x\n",
734 (u32)&ugeth->p_tx_glbl_pram->sqptr,
735 in_be32(&ugeth->p_tx_glbl_pram->sqptr));
736 pr_info("schedulerbasepointer: addr - 0x%08x, val - 0x%08x\n",
737 (u32)&ugeth->p_tx_glbl_pram->schedulerbasepointer,
738 in_be32(&ugeth->p_tx_glbl_pram->schedulerbasepointer));
739 pr_info("txrmonbaseptr: addr - 0x%08x, val - 0x%08x\n",
740 (u32)&ugeth->p_tx_glbl_pram->txrmonbaseptr,
741 in_be32(&ugeth->p_tx_glbl_pram->txrmonbaseptr));
742 pr_info("tstate : addr - 0x%08x, val - 0x%08x\n",
743 (u32)&ugeth->p_tx_glbl_pram->tstate,
744 in_be32(&ugeth->p_tx_glbl_pram->tstate));
745 pr_info("iphoffset[0] : addr - 0x%08x, val - 0x%02x\n",
746 (u32)&ugeth->p_tx_glbl_pram->iphoffset[0],
747 ugeth->p_tx_glbl_pram->iphoffset[0]);
748 pr_info("iphoffset[1] : addr - 0x%08x, val - 0x%02x\n",
749 (u32)&ugeth->p_tx_glbl_pram->iphoffset[1],
750 ugeth->p_tx_glbl_pram->iphoffset[1]);
751 pr_info("iphoffset[2] : addr - 0x%08x, val - 0x%02x\n",
752 (u32)&ugeth->p_tx_glbl_pram->iphoffset[2],
753 ugeth->p_tx_glbl_pram->iphoffset[2]);
754 pr_info("iphoffset[3] : addr - 0x%08x, val - 0x%02x\n",
755 (u32)&ugeth->p_tx_glbl_pram->iphoffset[3],
756 ugeth->p_tx_glbl_pram->iphoffset[3]);
757 pr_info("iphoffset[4] : addr - 0x%08x, val - 0x%02x\n",
758 (u32)&ugeth->p_tx_glbl_pram->iphoffset[4],
759 ugeth->p_tx_glbl_pram->iphoffset[4]);
760 pr_info("iphoffset[5] : addr - 0x%08x, val - 0x%02x\n",
761 (u32)&ugeth->p_tx_glbl_pram->iphoffset[5],
762 ugeth->p_tx_glbl_pram->iphoffset[5]);
763 pr_info("iphoffset[6] : addr - 0x%08x, val - 0x%02x\n",
764 (u32)&ugeth->p_tx_glbl_pram->iphoffset[6],
765 ugeth->p_tx_glbl_pram->iphoffset[6]);
766 pr_info("iphoffset[7] : addr - 0x%08x, val - 0x%02x\n",
767 (u32)&ugeth->p_tx_glbl_pram->iphoffset[7],
768 ugeth->p_tx_glbl_pram->iphoffset[7]);
769 pr_info("vtagtable[0] : addr - 0x%08x, val - 0x%08x\n",
770 (u32)&ugeth->p_tx_glbl_pram->vtagtable[0],
771 in_be32(&ugeth->p_tx_glbl_pram->vtagtable[0]));
772 pr_info("vtagtable[1] : addr - 0x%08x, val - 0x%08x\n",
773 (u32)&ugeth->p_tx_glbl_pram->vtagtable[1],
774 in_be32(&ugeth->p_tx_glbl_pram->vtagtable[1]));
775 pr_info("vtagtable[2] : addr - 0x%08x, val - 0x%08x\n",
776 (u32)&ugeth->p_tx_glbl_pram->vtagtable[2],
777 in_be32(&ugeth->p_tx_glbl_pram->vtagtable[2]));
778 pr_info("vtagtable[3] : addr - 0x%08x, val - 0x%08x\n",
779 (u32)&ugeth->p_tx_glbl_pram->vtagtable[3],
780 in_be32(&ugeth->p_tx_glbl_pram->vtagtable[3]));
781 pr_info("vtagtable[4] : addr - 0x%08x, val - 0x%08x\n",
782 (u32)&ugeth->p_tx_glbl_pram->vtagtable[4],
783 in_be32(&ugeth->p_tx_glbl_pram->vtagtable[4]));
784 pr_info("vtagtable[5] : addr - 0x%08x, val - 0x%08x\n",
785 (u32)&ugeth->p_tx_glbl_pram->vtagtable[5],
786 in_be32(&ugeth->p_tx_glbl_pram->vtagtable[5]));
787 pr_info("vtagtable[6] : addr - 0x%08x, val - 0x%08x\n",
788 (u32)&ugeth->p_tx_glbl_pram->vtagtable[6],
789 in_be32(&ugeth->p_tx_glbl_pram->vtagtable[6]));
790 pr_info("vtagtable[7] : addr - 0x%08x, val - 0x%08x\n",
791 (u32)&ugeth->p_tx_glbl_pram->vtagtable[7],
792 in_be32(&ugeth->p_tx_glbl_pram->vtagtable[7]));
793 pr_info("tqptr : addr - 0x%08x, val - 0x%08x\n",
794 (u32)&ugeth->p_tx_glbl_pram->tqptr,
795 in_be32(&ugeth->p_tx_glbl_pram->tqptr));
796 }
797 if (ugeth->p_rx_glbl_pram) {
798 pr_info("RX global param:\n");
799 pr_info("Base address: 0x%08x\n", (u32)ugeth->p_rx_glbl_pram);
800 pr_info("remoder : addr - 0x%08x, val - 0x%08x\n",
801 (u32)&ugeth->p_rx_glbl_pram->remoder,
802 in_be32(&ugeth->p_rx_glbl_pram->remoder));
803 pr_info("rqptr : addr - 0x%08x, val - 0x%08x\n",
804 (u32)&ugeth->p_rx_glbl_pram->rqptr,
805 in_be32(&ugeth->p_rx_glbl_pram->rqptr));
806 pr_info("typeorlen : addr - 0x%08x, val - 0x%04x\n",
807 (u32)&ugeth->p_rx_glbl_pram->typeorlen,
808 in_be16(&ugeth->p_rx_glbl_pram->typeorlen));
809 pr_info("rxgstpack : addr - 0x%08x, val - 0x%02x\n",
810 (u32)&ugeth->p_rx_glbl_pram->rxgstpack,
811 ugeth->p_rx_glbl_pram->rxgstpack);
812 pr_info("rxrmonbaseptr : addr - 0x%08x, val - 0x%08x\n",
813 (u32)&ugeth->p_rx_glbl_pram->rxrmonbaseptr,
814 in_be32(&ugeth->p_rx_glbl_pram->rxrmonbaseptr));
815 pr_info("intcoalescingptr: addr - 0x%08x, val - 0x%08x\n",
816 (u32)&ugeth->p_rx_glbl_pram->intcoalescingptr,
817 in_be32(&ugeth->p_rx_glbl_pram->intcoalescingptr));
818 pr_info("rstate : addr - 0x%08x, val - 0x%02x\n",
819 (u32)&ugeth->p_rx_glbl_pram->rstate,
820 ugeth->p_rx_glbl_pram->rstate);
821 pr_info("mrblr : addr - 0x%08x, val - 0x%04x\n",
822 (u32)&ugeth->p_rx_glbl_pram->mrblr,
823 in_be16(&ugeth->p_rx_glbl_pram->mrblr));
824 pr_info("rbdqptr : addr - 0x%08x, val - 0x%08x\n",
825 (u32)&ugeth->p_rx_glbl_pram->rbdqptr,
826 in_be32(&ugeth->p_rx_glbl_pram->rbdqptr));
827 pr_info("mflr : addr - 0x%08x, val - 0x%04x\n",
828 (u32)&ugeth->p_rx_glbl_pram->mflr,
829 in_be16(&ugeth->p_rx_glbl_pram->mflr));
830 pr_info("minflr : addr - 0x%08x, val - 0x%04x\n",
831 (u32)&ugeth->p_rx_glbl_pram->minflr,
832 in_be16(&ugeth->p_rx_glbl_pram->minflr));
833 pr_info("maxd1 : addr - 0x%08x, val - 0x%04x\n",
834 (u32)&ugeth->p_rx_glbl_pram->maxd1,
835 in_be16(&ugeth->p_rx_glbl_pram->maxd1));
836 pr_info("maxd2 : addr - 0x%08x, val - 0x%04x\n",
837 (u32)&ugeth->p_rx_glbl_pram->maxd2,
838 in_be16(&ugeth->p_rx_glbl_pram->maxd2));
839 pr_info("ecamptr : addr - 0x%08x, val - 0x%08x\n",
840 (u32)&ugeth->p_rx_glbl_pram->ecamptr,
841 in_be32(&ugeth->p_rx_glbl_pram->ecamptr));
842 pr_info("l2qt : addr - 0x%08x, val - 0x%08x\n",
843 (u32)&ugeth->p_rx_glbl_pram->l2qt,
844 in_be32(&ugeth->p_rx_glbl_pram->l2qt));
845 pr_info("l3qt[0] : addr - 0x%08x, val - 0x%08x\n",
846 (u32)&ugeth->p_rx_glbl_pram->l3qt[0],
847 in_be32(&ugeth->p_rx_glbl_pram->l3qt[0]));
848 pr_info("l3qt[1] : addr - 0x%08x, val - 0x%08x\n",
849 (u32)&ugeth->p_rx_glbl_pram->l3qt[1],
850 in_be32(&ugeth->p_rx_glbl_pram->l3qt[1]));
851 pr_info("l3qt[2] : addr - 0x%08x, val - 0x%08x\n",
852 (u32)&ugeth->p_rx_glbl_pram->l3qt[2],
853 in_be32(&ugeth->p_rx_glbl_pram->l3qt[2]));
854 pr_info("l3qt[3] : addr - 0x%08x, val - 0x%08x\n",
855 (u32)&ugeth->p_rx_glbl_pram->l3qt[3],
856 in_be32(&ugeth->p_rx_glbl_pram->l3qt[3]));
857 pr_info("l3qt[4] : addr - 0x%08x, val - 0x%08x\n",
858 (u32)&ugeth->p_rx_glbl_pram->l3qt[4],
859 in_be32(&ugeth->p_rx_glbl_pram->l3qt[4]));
860 pr_info("l3qt[5] : addr - 0x%08x, val - 0x%08x\n",
861 (u32)&ugeth->p_rx_glbl_pram->l3qt[5],
862 in_be32(&ugeth->p_rx_glbl_pram->l3qt[5]));
863 pr_info("l3qt[6] : addr - 0x%08x, val - 0x%08x\n",
864 (u32)&ugeth->p_rx_glbl_pram->l3qt[6],
865 in_be32(&ugeth->p_rx_glbl_pram->l3qt[6]));
866 pr_info("l3qt[7] : addr - 0x%08x, val - 0x%08x\n",
867 (u32)&ugeth->p_rx_glbl_pram->l3qt[7],
868 in_be32(&ugeth->p_rx_glbl_pram->l3qt[7]));
869 pr_info("vlantype : addr - 0x%08x, val - 0x%04x\n",
870 (u32)&ugeth->p_rx_glbl_pram->vlantype,
871 in_be16(&ugeth->p_rx_glbl_pram->vlantype));
872 pr_info("vlantci : addr - 0x%08x, val - 0x%04x\n",
873 (u32)&ugeth->p_rx_glbl_pram->vlantci,
874 in_be16(&ugeth->p_rx_glbl_pram->vlantci));
875 for (i = 0; i < 64; i++)
876 pr_info("addressfiltering[%d]: addr - 0x%08x, val - 0x%02x\n",
877 i,
878 (u32)&ugeth->p_rx_glbl_pram->addressfiltering[i],
879 ugeth->p_rx_glbl_pram->addressfiltering[i]);
880 pr_info("exfGlobalParam : addr - 0x%08x, val - 0x%08x\n",
881 (u32)&ugeth->p_rx_glbl_pram->exfGlobalParam,
882 in_be32(&ugeth->p_rx_glbl_pram->exfGlobalParam));
883 }
884 if (ugeth->p_send_q_mem_reg) {
885 pr_info("Send Q memory registers:\n");
886 pr_info("Base address: 0x%08x\n", (u32)ugeth->p_send_q_mem_reg);
887 for (i = 0; i < ucc_geth_tx_queues(ugeth->ug_info); i++) {
888 pr_info("SQQD[%d]:\n", i);
889 pr_info("Base address: 0x%08x\n",
890 (u32)&ugeth->p_send_q_mem_reg->sqqd[i]);
891 mem_disp((u8 *) & ugeth->p_send_q_mem_reg->sqqd[i],
892 sizeof(struct ucc_geth_send_queue_qd));
893 }
894 }
895 if (ugeth->p_scheduler) {
896 pr_info("Scheduler:\n");
897 pr_info("Base address: 0x%08x\n", (u32)ugeth->p_scheduler);
898 mem_disp((u8 *) ugeth->p_scheduler,
899 sizeof(*ugeth->p_scheduler));
900 }
901 if (ugeth->p_tx_fw_statistics_pram) {
902 pr_info("TX FW statistics pram:\n");
903 pr_info("Base address: 0x%08x\n",
904 (u32)ugeth->p_tx_fw_statistics_pram);
905 mem_disp((u8 *) ugeth->p_tx_fw_statistics_pram,
906 sizeof(*ugeth->p_tx_fw_statistics_pram));
907 }
908 if (ugeth->p_rx_fw_statistics_pram) {
909 pr_info("RX FW statistics pram:\n");
910 pr_info("Base address: 0x%08x\n",
911 (u32)ugeth->p_rx_fw_statistics_pram);
912 mem_disp((u8 *) ugeth->p_rx_fw_statistics_pram,
913 sizeof(*ugeth->p_rx_fw_statistics_pram));
914 }
915 if (ugeth->p_rx_irq_coalescing_tbl) {
916 pr_info("RX IRQ coalescing tables:\n");
917 pr_info("Base address: 0x%08x\n",
918 (u32)ugeth->p_rx_irq_coalescing_tbl);
919 for (i = 0; i < ucc_geth_rx_queues(ugeth->ug_info); i++) {
920 pr_info("RX IRQ coalescing table entry[%d]:\n", i);
921 pr_info("Base address: 0x%08x\n",
922 (u32)&ugeth->p_rx_irq_coalescing_tbl->
923 coalescingentry[i]);
924 pr_info("interruptcoalescingmaxvalue: addr - 0x%08x, val - 0x%08x\n",
925 (u32)&ugeth->p_rx_irq_coalescing_tbl->
926 coalescingentry[i].interruptcoalescingmaxvalue,
927 in_be32(&ugeth->p_rx_irq_coalescing_tbl->
928 coalescingentry[i].
929 interruptcoalescingmaxvalue));
930 pr_info("interruptcoalescingcounter : addr - 0x%08x, val - 0x%08x\n",
931 (u32)&ugeth->p_rx_irq_coalescing_tbl->
932 coalescingentry[i].interruptcoalescingcounter,
933 in_be32(&ugeth->p_rx_irq_coalescing_tbl->
934 coalescingentry[i].
935 interruptcoalescingcounter));
936 }
937 }
938 if (ugeth->p_rx_bd_qs_tbl) {
939 pr_info("RX BD QS tables:\n");
940 pr_info("Base address: 0x%08x\n", (u32)ugeth->p_rx_bd_qs_tbl);
941 for (i = 0; i < ucc_geth_rx_queues(ugeth->ug_info); i++) {
942 pr_info("RX BD QS table[%d]:\n", i);
943 pr_info("Base address: 0x%08x\n",
944 (u32)&ugeth->p_rx_bd_qs_tbl[i]);
945 pr_info("bdbaseptr : addr - 0x%08x, val - 0x%08x\n",
946 (u32)&ugeth->p_rx_bd_qs_tbl[i].bdbaseptr,
947 in_be32(&ugeth->p_rx_bd_qs_tbl[i].bdbaseptr));
948 pr_info("bdptr : addr - 0x%08x, val - 0x%08x\n",
949 (u32)&ugeth->p_rx_bd_qs_tbl[i].bdptr,
950 in_be32(&ugeth->p_rx_bd_qs_tbl[i].bdptr));
951 pr_info("externalbdbaseptr: addr - 0x%08x, val - 0x%08x\n",
952 (u32)&ugeth->p_rx_bd_qs_tbl[i].externalbdbaseptr,
953 in_be32(&ugeth->p_rx_bd_qs_tbl[i].
954 externalbdbaseptr));
955 pr_info("externalbdptr : addr - 0x%08x, val - 0x%08x\n",
956 (u32)&ugeth->p_rx_bd_qs_tbl[i].externalbdptr,
957 in_be32(&ugeth->p_rx_bd_qs_tbl[i].externalbdptr));
958 pr_info("ucode RX Prefetched BDs:\n");
959 pr_info("Base address: 0x%08x\n",
960 (u32)qe_muram_addr(in_be32
961 (&ugeth->p_rx_bd_qs_tbl[i].
962 bdbaseptr)));
963 mem_disp((u8 *)
964 qe_muram_addr(in_be32
965 (&ugeth->p_rx_bd_qs_tbl[i].
966 bdbaseptr)),
967 sizeof(struct ucc_geth_rx_prefetched_bds));
968 }
969 }
970 if (ugeth->p_init_enet_param_shadow) {
971 int size;
972 pr_info("Init enet param shadow:\n");
973 pr_info("Base address: 0x%08x\n",
974 (u32) ugeth->p_init_enet_param_shadow);
975 mem_disp((u8 *) ugeth->p_init_enet_param_shadow,
976 sizeof(*ugeth->p_init_enet_param_shadow));
977
978 size = sizeof(struct ucc_geth_thread_rx_pram);
979 if (ugeth->ug_info->rxExtendedFiltering) {
980 size +=
981 THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING;
982 if (ugeth->ug_info->largestexternallookupkeysize ==
983 QE_FLTR_TABLE_LOOKUP_KEY_SIZE_8_BYTES)
984 size +=
985 THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING_8;
986 if (ugeth->ug_info->largestexternallookupkeysize ==
987 QE_FLTR_TABLE_LOOKUP_KEY_SIZE_16_BYTES)
988 size +=
989 THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING_16;
990 }
991
992 dump_init_enet_entries(ugeth,
993 &(ugeth->p_init_enet_param_shadow->
994 txthread[0]),
995 ENET_INIT_PARAM_MAX_ENTRIES_TX,
996 sizeof(struct ucc_geth_thread_tx_pram),
997 ugeth->ug_info->riscTx, 0);
998 dump_init_enet_entries(ugeth,
999 &(ugeth->p_init_enet_param_shadow->
1000 rxthread[0]),
1001 ENET_INIT_PARAM_MAX_ENTRIES_RX, size,
1002 ugeth->ug_info->riscRx, 1);
1003 }
1004}
1005#endif /* DEBUG */
1006
1007static void init_default_reg_vals(u32 __iomem *upsmr_register,
1008 u32 __iomem *maccfg1_register,
1009 u32 __iomem *maccfg2_register)
1010{
1011 out_be32(upsmr_register, UCC_GETH_UPSMR_INIT);
1012 out_be32(maccfg1_register, UCC_GETH_MACCFG1_INIT);
1013 out_be32(maccfg2_register, UCC_GETH_MACCFG2_INIT);
1014}
1015
1016static int init_half_duplex_params(int alt_beb,
1017 int back_pressure_no_backoff,
1018 int no_backoff,
1019 int excess_defer,
1020 u8 alt_beb_truncation,
1021 u8 max_retransmissions,
1022 u8 collision_window,
1023 u32 __iomem *hafdup_register)
1024{
1025 u32 value = 0;
1026
1027 if ((alt_beb_truncation > HALFDUP_ALT_BEB_TRUNCATION_MAX) ||
1028 (max_retransmissions > HALFDUP_MAX_RETRANSMISSION_MAX) ||
1029 (collision_window > HALFDUP_COLLISION_WINDOW_MAX))
1030 return -EINVAL;
1031
1032 value = (u32) (alt_beb_truncation << HALFDUP_ALT_BEB_TRUNCATION_SHIFT);
1033
1034 if (alt_beb)
1035 value |= HALFDUP_ALT_BEB;
1036 if (back_pressure_no_backoff)
1037 value |= HALFDUP_BACK_PRESSURE_NO_BACKOFF;
1038 if (no_backoff)
1039 value |= HALFDUP_NO_BACKOFF;
1040 if (excess_defer)
1041 value |= HALFDUP_EXCESSIVE_DEFER;
1042
1043 value |= (max_retransmissions << HALFDUP_MAX_RETRANSMISSION_SHIFT);
1044
1045 value |= collision_window;
1046
1047 out_be32(hafdup_register, value);
1048 return 0;
1049}
1050
1051static int init_inter_frame_gap_params(u8 non_btb_cs_ipg,
1052 u8 non_btb_ipg,
1053 u8 min_ifg,
1054 u8 btb_ipg,
1055 u32 __iomem *ipgifg_register)
1056{
1057 u32 value = 0;
1058
1059 /* Non-Back-to-back IPG part 1 should be <= Non-Back-to-back
1060 IPG part 2 */
1061 if (non_btb_cs_ipg > non_btb_ipg)
1062 return -EINVAL;
1063
1064 if ((non_btb_cs_ipg > IPGIFG_NON_BACK_TO_BACK_IFG_PART1_MAX) ||
1065 (non_btb_ipg > IPGIFG_NON_BACK_TO_BACK_IFG_PART2_MAX) ||
1066 /*(min_ifg > IPGIFG_MINIMUM_IFG_ENFORCEMENT_MAX) || */
1067 (btb_ipg > IPGIFG_BACK_TO_BACK_IFG_MAX))
1068 return -EINVAL;
1069
1070 value |=
1071 ((non_btb_cs_ipg << IPGIFG_NON_BACK_TO_BACK_IFG_PART1_SHIFT) &
1072 IPGIFG_NBTB_CS_IPG_MASK);
1073 value |=
1074 ((non_btb_ipg << IPGIFG_NON_BACK_TO_BACK_IFG_PART2_SHIFT) &
1075 IPGIFG_NBTB_IPG_MASK);
1076 value |=
1077 ((min_ifg << IPGIFG_MINIMUM_IFG_ENFORCEMENT_SHIFT) &
1078 IPGIFG_MIN_IFG_MASK);
1079 value |= (btb_ipg & IPGIFG_BTB_IPG_MASK);
1080
1081 out_be32(ipgifg_register, value);
1082 return 0;
1083}
1084
1085int init_flow_control_params(u32 automatic_flow_control_mode,
1086 int rx_flow_control_enable,
1087 int tx_flow_control_enable,
1088 u16 pause_period,
1089 u16 extension_field,
1090 u32 __iomem *upsmr_register,
1091 u32 __iomem *uempr_register,
1092 u32 __iomem *maccfg1_register)
1093{
1094 u32 value = 0;
1095
1096 /* Set UEMPR register */
1097 value = (u32) pause_period << UEMPR_PAUSE_TIME_VALUE_SHIFT;
1098 value |= (u32) extension_field << UEMPR_EXTENDED_PAUSE_TIME_VALUE_SHIFT;
1099 out_be32(uempr_register, value);
1100
1101 /* Set UPSMR register */
1102 setbits32(upsmr_register, automatic_flow_control_mode);
1103
1104 value = in_be32(maccfg1_register);
1105 if (rx_flow_control_enable)
1106 value |= MACCFG1_FLOW_RX;
1107 if (tx_flow_control_enable)
1108 value |= MACCFG1_FLOW_TX;
1109 out_be32(maccfg1_register, value);
1110
1111 return 0;
1112}
1113
1114static int init_hw_statistics_gathering_mode(int enable_hardware_statistics,
1115 int auto_zero_hardware_statistics,
1116 u32 __iomem *upsmr_register,
1117 u16 __iomem *uescr_register)
1118{
1119 u16 uescr_value = 0;
1120
1121 /* Enable hardware statistics gathering if requested */
1122 if (enable_hardware_statistics)
1123 setbits32(upsmr_register, UCC_GETH_UPSMR_HSE);
1124
1125 /* Clear hardware statistics counters */
1126 uescr_value = in_be16(uescr_register);
1127 uescr_value |= UESCR_CLRCNT;
1128 /* Automatically zero hardware statistics counters on read,
1129 if requested */
1130 if (auto_zero_hardware_statistics)
1131 uescr_value |= UESCR_AUTOZ;
1132 out_be16(uescr_register, uescr_value);
1133
1134 return 0;
1135}
1136
1137static int init_firmware_statistics_gathering_mode(int
1138 enable_tx_firmware_statistics,
1139 int enable_rx_firmware_statistics,
1140 u32 __iomem *tx_rmon_base_ptr,
1141 u32 tx_firmware_statistics_structure_address,
1142 u32 __iomem *rx_rmon_base_ptr,
1143 u32 rx_firmware_statistics_structure_address,
1144 u16 __iomem *temoder_register,
1145 u32 __iomem *remoder_register)
1146{
1147 /* Note: this function does not check if */
1148 /* the parameters it receives are NULL */
1149
1150 if (enable_tx_firmware_statistics) {
1151 out_be32(tx_rmon_base_ptr,
1152 tx_firmware_statistics_structure_address);
1153 setbits16(temoder_register, TEMODER_TX_RMON_STATISTICS_ENABLE);
1154 }
1155
1156 if (enable_rx_firmware_statistics) {
1157 out_be32(rx_rmon_base_ptr,
1158 rx_firmware_statistics_structure_address);
1159 setbits32(remoder_register, REMODER_RX_RMON_STATISTICS_ENABLE);
1160 }
1161
1162 return 0;
1163}
1164
1165static int init_mac_station_addr_regs(u8 address_byte_0,
1166 u8 address_byte_1,
1167 u8 address_byte_2,
1168 u8 address_byte_3,
1169 u8 address_byte_4,
1170 u8 address_byte_5,
1171 u32 __iomem *macstnaddr1_register,
1172 u32 __iomem *macstnaddr2_register)
1173{
1174 u32 value = 0;
1175
1176 /* Example: for a station address of 0x12345678ABCD, */
1177 /* 0x12 is byte 0, 0x34 is byte 1 and so on and 0xCD is byte 5 */
1178
1179 /* MACSTNADDR1 Register: */
1180
1181 /* 0 7 8 15 */
1182 /* station address byte 5 station address byte 4 */
1183 /* 16 23 24 31 */
1184 /* station address byte 3 station address byte 2 */
1185 value |= (u32) ((address_byte_2 << 0) & 0x000000FF);
1186 value |= (u32) ((address_byte_3 << 8) & 0x0000FF00);
1187 value |= (u32) ((address_byte_4 << 16) & 0x00FF0000);
1188 value |= (u32) ((address_byte_5 << 24) & 0xFF000000);
1189
1190 out_be32(macstnaddr1_register, value);
1191
1192 /* MACSTNADDR2 Register: */
1193
1194 /* 0 7 8 15 */
1195 /* station address byte 1 station address byte 0 */
1196 /* 16 23 24 31 */
1197 /* reserved reserved */
1198 value = 0;
1199 value |= (u32) ((address_byte_0 << 16) & 0x00FF0000);
1200 value |= (u32) ((address_byte_1 << 24) & 0xFF000000);
1201
1202 out_be32(macstnaddr2_register, value);
1203
1204 return 0;
1205}
1206
1207static int init_check_frame_length_mode(int length_check,
1208 u32 __iomem *maccfg2_register)
1209{
1210 u32 value = 0;
1211
1212 value = in_be32(maccfg2_register);
1213
1214 if (length_check)
1215 value |= MACCFG2_LC;
1216 else
1217 value &= ~MACCFG2_LC;
1218
1219 out_be32(maccfg2_register, value);
1220 return 0;
1221}
1222
1223static int init_preamble_length(u8 preamble_length,
1224 u32 __iomem *maccfg2_register)
1225{
1226 if ((preamble_length < 3) || (preamble_length > 7))
1227 return -EINVAL;
1228
1229 clrsetbits_be32(maccfg2_register, MACCFG2_PREL_MASK,
1230 preamble_length << MACCFG2_PREL_SHIFT);
1231
1232 return 0;
1233}
1234
1235static int init_rx_parameters(int reject_broadcast,
1236 int receive_short_frames,
1237 int promiscuous, u32 __iomem *upsmr_register)
1238{
1239 u32 value = 0;
1240
1241 value = in_be32(upsmr_register);
1242
1243 if (reject_broadcast)
1244 value |= UCC_GETH_UPSMR_BRO;
1245 else
1246 value &= ~UCC_GETH_UPSMR_BRO;
1247
1248 if (receive_short_frames)
1249 value |= UCC_GETH_UPSMR_RSH;
1250 else
1251 value &= ~UCC_GETH_UPSMR_RSH;
1252
1253 if (promiscuous)
1254 value |= UCC_GETH_UPSMR_PRO;
1255 else
1256 value &= ~UCC_GETH_UPSMR_PRO;
1257
1258 out_be32(upsmr_register, value);
1259
1260 return 0;
1261}
1262
1263static int init_max_rx_buff_len(u16 max_rx_buf_len,
1264 u16 __iomem *mrblr_register)
1265{
1266 /* max_rx_buf_len value must be a multiple of 128 */
1267 if ((max_rx_buf_len == 0) ||
1268 (max_rx_buf_len % UCC_GETH_MRBLR_ALIGNMENT))
1269 return -EINVAL;
1270
1271 out_be16(mrblr_register, max_rx_buf_len);
1272 return 0;
1273}
1274
1275static int init_min_frame_len(u16 min_frame_length,
1276 u16 __iomem *minflr_register,
1277 u16 __iomem *mrblr_register)
1278{
1279 u16 mrblr_value = 0;
1280
1281 mrblr_value = in_be16(mrblr_register);
1282 if (min_frame_length >= (mrblr_value - 4))
1283 return -EINVAL;
1284
1285 out_be16(minflr_register, min_frame_length);
1286 return 0;
1287}
1288
1289static int adjust_enet_interface(struct ucc_geth_private *ugeth)
1290{
1291 struct ucc_geth_info *ug_info;
1292 struct ucc_geth __iomem *ug_regs;
1293 struct ucc_fast __iomem *uf_regs;
1294 int ret_val;
1295 u32 upsmr, maccfg2;
1296 u16 value;
1297
1298 ugeth_vdbg("%s: IN", __func__);
1299
1300 ug_info = ugeth->ug_info;
1301 ug_regs = ugeth->ug_regs;
1302 uf_regs = ugeth->uccf->uf_regs;
1303
1304 /* Set MACCFG2 */
1305 maccfg2 = in_be32(&ug_regs->maccfg2);
1306 maccfg2 &= ~MACCFG2_INTERFACE_MODE_MASK;
1307 if ((ugeth->max_speed == SPEED_10) ||
1308 (ugeth->max_speed == SPEED_100))
1309 maccfg2 |= MACCFG2_INTERFACE_MODE_NIBBLE;
1310 else if (ugeth->max_speed == SPEED_1000)
1311 maccfg2 |= MACCFG2_INTERFACE_MODE_BYTE;
1312 maccfg2 |= ug_info->padAndCrc;
1313 out_be32(&ug_regs->maccfg2, maccfg2);
1314
1315 /* Set UPSMR */
1316 upsmr = in_be32(&uf_regs->upsmr);
1317 upsmr &= ~(UCC_GETH_UPSMR_RPM | UCC_GETH_UPSMR_R10M |
1318 UCC_GETH_UPSMR_TBIM | UCC_GETH_UPSMR_RMM);
1319 if ((ugeth->phy_interface == PHY_INTERFACE_MODE_RMII) ||
1320 (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII) ||
1321 (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII_ID) ||
1322 (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII_RXID) ||
1323 (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII_TXID) ||
1324 (ugeth->phy_interface == PHY_INTERFACE_MODE_RTBI)) {
1325 if (ugeth->phy_interface != PHY_INTERFACE_MODE_RMII)
1326 upsmr |= UCC_GETH_UPSMR_RPM;
1327 switch (ugeth->max_speed) {
1328 case SPEED_10:
1329 upsmr |= UCC_GETH_UPSMR_R10M;
1330 fallthrough;
1331 case SPEED_100:
1332 if (ugeth->phy_interface != PHY_INTERFACE_MODE_RTBI)
1333 upsmr |= UCC_GETH_UPSMR_RMM;
1334 }
1335 }
1336 if ((ugeth->phy_interface == PHY_INTERFACE_MODE_TBI) ||
1337 (ugeth->phy_interface == PHY_INTERFACE_MODE_RTBI)) {
1338 upsmr |= UCC_GETH_UPSMR_TBIM;
1339 }
1340 if (ugeth->phy_interface == PHY_INTERFACE_MODE_SGMII)
1341 upsmr |= UCC_GETH_UPSMR_SGMM;
1342
1343 out_be32(&uf_regs->upsmr, upsmr);
1344
1345 /* Disable autonegotiation in tbi mode, because by default it
1346 comes up in autonegotiation mode. */
1347 /* Note that this depends on proper setting in utbipar register. */
1348 if ((ugeth->phy_interface == PHY_INTERFACE_MODE_TBI) ||
1349 (ugeth->phy_interface == PHY_INTERFACE_MODE_RTBI)) {
1350 struct ucc_geth_info *ug_info = ugeth->ug_info;
1351 struct phy_device *tbiphy;
1352
1353 if (!ug_info->tbi_node)
1354 pr_warn("TBI mode requires that the device tree specify a tbi-handle\n");
1355
1356 tbiphy = of_phy_find_device(ug_info->tbi_node);
1357 if (!tbiphy)
1358 pr_warn("Could not get TBI device\n");
1359
1360 value = phy_read(tbiphy, ENET_TBI_MII_CR);
1361 value &= ~0x1000; /* Turn off autonegotiation */
1362 phy_write(tbiphy, ENET_TBI_MII_CR, value);
1363
1364 put_device(&tbiphy->mdio.dev);
1365 }
1366
1367 init_check_frame_length_mode(ug_info->lengthCheckRx, &ug_regs->maccfg2);
1368
1369 ret_val = init_preamble_length(ug_info->prel, &ug_regs->maccfg2);
1370 if (ret_val != 0) {
1371 if (netif_msg_probe(ugeth))
1372 pr_err("Preamble length must be between 3 and 7 inclusive\n");
1373 return ret_val;
1374 }
1375
1376 return 0;
1377}
1378
1379static int ugeth_graceful_stop_tx(struct ucc_geth_private *ugeth)
1380{
1381 struct ucc_fast_private *uccf;
1382 u32 cecr_subblock;
1383 u32 temp;
1384 int i = 10;
1385
1386 uccf = ugeth->uccf;
1387
1388 /* Mask GRACEFUL STOP TX interrupt bit and clear it */
1389 clrbits32(uccf->p_uccm, UCC_GETH_UCCE_GRA);
1390 out_be32(uccf->p_ucce, UCC_GETH_UCCE_GRA); /* clear by writing 1 */
1391
1392 /* Issue host command */
1393 cecr_subblock =
1394 ucc_fast_get_qe_cr_subblock(ugeth->ug_info->uf_info.ucc_num);
1395 qe_issue_cmd(QE_GRACEFUL_STOP_TX, cecr_subblock,
1396 QE_CR_PROTOCOL_ETHERNET, 0);
1397
1398 /* Wait for command to complete */
1399 do {
1400 msleep(10);
1401 temp = in_be32(uccf->p_ucce);
1402 } while (!(temp & UCC_GETH_UCCE_GRA) && --i);
1403
1404 uccf->stopped_tx = 1;
1405
1406 return 0;
1407}
1408
1409static int ugeth_graceful_stop_rx(struct ucc_geth_private *ugeth)
1410{
1411 struct ucc_fast_private *uccf;
1412 u32 cecr_subblock;
1413 u8 temp;
1414 int i = 10;
1415
1416 uccf = ugeth->uccf;
1417
1418 /* Clear acknowledge bit */
1419 temp = in_8(&ugeth->p_rx_glbl_pram->rxgstpack);
1420 temp &= ~GRACEFUL_STOP_ACKNOWLEDGE_RX;
1421 out_8(&ugeth->p_rx_glbl_pram->rxgstpack, temp);
1422
1423 /* Keep issuing command and checking acknowledge bit until
1424 it is asserted, according to spec */
1425 do {
1426 /* Issue host command */
1427 cecr_subblock =
1428 ucc_fast_get_qe_cr_subblock(ugeth->ug_info->uf_info.
1429 ucc_num);
1430 qe_issue_cmd(QE_GRACEFUL_STOP_RX, cecr_subblock,
1431 QE_CR_PROTOCOL_ETHERNET, 0);
1432 msleep(10);
1433 temp = in_8(&ugeth->p_rx_glbl_pram->rxgstpack);
1434 } while (!(temp & GRACEFUL_STOP_ACKNOWLEDGE_RX) && --i);
1435
1436 uccf->stopped_rx = 1;
1437
1438 return 0;
1439}
1440
1441static int ugeth_restart_tx(struct ucc_geth_private *ugeth)
1442{
1443 struct ucc_fast_private *uccf;
1444 u32 cecr_subblock;
1445
1446 uccf = ugeth->uccf;
1447
1448 cecr_subblock =
1449 ucc_fast_get_qe_cr_subblock(ugeth->ug_info->uf_info.ucc_num);
1450 qe_issue_cmd(QE_RESTART_TX, cecr_subblock, QE_CR_PROTOCOL_ETHERNET, 0);
1451 uccf->stopped_tx = 0;
1452
1453 return 0;
1454}
1455
1456static int ugeth_restart_rx(struct ucc_geth_private *ugeth)
1457{
1458 struct ucc_fast_private *uccf;
1459 u32 cecr_subblock;
1460
1461 uccf = ugeth->uccf;
1462
1463 cecr_subblock =
1464 ucc_fast_get_qe_cr_subblock(ugeth->ug_info->uf_info.ucc_num);
1465 qe_issue_cmd(QE_RESTART_RX, cecr_subblock, QE_CR_PROTOCOL_ETHERNET,
1466 0);
1467 uccf->stopped_rx = 0;
1468
1469 return 0;
1470}
1471
1472static int ugeth_enable(struct ucc_geth_private *ugeth, enum comm_dir mode)
1473{
1474 struct ucc_fast_private *uccf;
1475 int enabled_tx, enabled_rx;
1476
1477 uccf = ugeth->uccf;
1478
1479 /* check if the UCC number is in range. */
1480 if (ugeth->ug_info->uf_info.ucc_num >= UCC_MAX_NUM) {
1481 if (netif_msg_probe(ugeth))
1482 pr_err("ucc_num out of range\n");
1483 return -EINVAL;
1484 }
1485
1486 enabled_tx = uccf->enabled_tx;
1487 enabled_rx = uccf->enabled_rx;
1488
1489 /* Get Tx and Rx going again, in case this channel was actively
1490 disabled. */
1491 if ((mode & COMM_DIR_TX) && (!enabled_tx) && uccf->stopped_tx)
1492 ugeth_restart_tx(ugeth);
1493 if ((mode & COMM_DIR_RX) && (!enabled_rx) && uccf->stopped_rx)
1494 ugeth_restart_rx(ugeth);
1495
1496 ucc_fast_enable(uccf, mode); /* OK to do even if not disabled */
1497
1498 return 0;
1499
1500}
1501
1502static int ugeth_disable(struct ucc_geth_private *ugeth, enum comm_dir mode)
1503{
1504 struct ucc_fast_private *uccf;
1505
1506 uccf = ugeth->uccf;
1507
1508 /* check if the UCC number is in range. */
1509 if (ugeth->ug_info->uf_info.ucc_num >= UCC_MAX_NUM) {
1510 if (netif_msg_probe(ugeth))
1511 pr_err("ucc_num out of range\n");
1512 return -EINVAL;
1513 }
1514
1515 /* Stop any transmissions */
1516 if ((mode & COMM_DIR_TX) && uccf->enabled_tx && !uccf->stopped_tx)
1517 ugeth_graceful_stop_tx(ugeth);
1518
1519 /* Stop any receptions */
1520 if ((mode & COMM_DIR_RX) && uccf->enabled_rx && !uccf->stopped_rx)
1521 ugeth_graceful_stop_rx(ugeth);
1522
1523 ucc_fast_disable(ugeth->uccf, mode); /* OK to do even if not enabled */
1524
1525 return 0;
1526}
1527
1528static void ugeth_quiesce(struct ucc_geth_private *ugeth)
1529{
1530 /* Prevent any further xmits */
1531 netif_tx_stop_all_queues(ugeth->ndev);
1532
1533 /* Disable the interrupt to avoid NAPI rescheduling. */
1534 disable_irq(ugeth->ug_info->uf_info.irq);
1535
1536 /* Stop NAPI, and possibly wait for its completion. */
1537 napi_disable(&ugeth->napi);
1538}
1539
1540static void ugeth_activate(struct ucc_geth_private *ugeth)
1541{
1542 napi_enable(&ugeth->napi);
1543 enable_irq(ugeth->ug_info->uf_info.irq);
1544
1545 /* allow to xmit again */
1546 netif_tx_wake_all_queues(ugeth->ndev);
1547 __netdev_watchdog_up(ugeth->ndev);
1548}
1549
1550/* Called every time the controller might need to be made
1551 * aware of new link state. The PHY code conveys this
1552 * information through variables in the ugeth structure, and this
1553 * function converts those variables into the appropriate
1554 * register values, and can bring down the device if needed.
1555 */
1556
1557static void adjust_link(struct net_device *dev)
1558{
1559 struct ucc_geth_private *ugeth = netdev_priv(dev);
1560 struct ucc_geth __iomem *ug_regs;
1561 struct ucc_fast __iomem *uf_regs;
1562 struct phy_device *phydev = ugeth->phydev;
1563 int new_state = 0;
1564
1565 ug_regs = ugeth->ug_regs;
1566 uf_regs = ugeth->uccf->uf_regs;
1567
1568 if (phydev->link) {
1569 u32 tempval = in_be32(&ug_regs->maccfg2);
1570 u32 upsmr = in_be32(&uf_regs->upsmr);
1571 /* Now we make sure that we can be in full duplex mode.
1572 * If not, we operate in half-duplex mode. */
1573 if (phydev->duplex != ugeth->oldduplex) {
1574 new_state = 1;
1575 if (!(phydev->duplex))
1576 tempval &= ~(MACCFG2_FDX);
1577 else
1578 tempval |= MACCFG2_FDX;
1579 ugeth->oldduplex = phydev->duplex;
1580 }
1581
1582 if (phydev->speed != ugeth->oldspeed) {
1583 new_state = 1;
1584 switch (phydev->speed) {
1585 case SPEED_1000:
1586 tempval = ((tempval &
1587 ~(MACCFG2_INTERFACE_MODE_MASK)) |
1588 MACCFG2_INTERFACE_MODE_BYTE);
1589 break;
1590 case SPEED_100:
1591 case SPEED_10:
1592 tempval = ((tempval &
1593 ~(MACCFG2_INTERFACE_MODE_MASK)) |
1594 MACCFG2_INTERFACE_MODE_NIBBLE);
1595 /* if reduced mode, re-set UPSMR.R10M */
1596 if ((ugeth->phy_interface == PHY_INTERFACE_MODE_RMII) ||
1597 (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII) ||
1598 (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII_ID) ||
1599 (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII_RXID) ||
1600 (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII_TXID) ||
1601 (ugeth->phy_interface == PHY_INTERFACE_MODE_RTBI)) {
1602 if (phydev->speed == SPEED_10)
1603 upsmr |= UCC_GETH_UPSMR_R10M;
1604 else
1605 upsmr &= ~UCC_GETH_UPSMR_R10M;
1606 }
1607 break;
1608 default:
1609 if (netif_msg_link(ugeth))
1610 pr_warn(
1611 "%s: Ack! Speed (%d) is not 10/100/1000!",
1612 dev->name, phydev->speed);
1613 break;
1614 }
1615 ugeth->oldspeed = phydev->speed;
1616 }
1617
1618 if (!ugeth->oldlink) {
1619 new_state = 1;
1620 ugeth->oldlink = 1;
1621 }
1622
1623 if (new_state) {
1624 /*
1625 * To change the MAC configuration we need to disable
1626 * the controller. To do so, we have to either grab
1627 * ugeth->lock, which is a bad idea since 'graceful
1628 * stop' commands might take quite a while, or we can
1629 * quiesce driver's activity.
1630 */
1631 ugeth_quiesce(ugeth);
1632 ugeth_disable(ugeth, COMM_DIR_RX_AND_TX);
1633
1634 out_be32(&ug_regs->maccfg2, tempval);
1635 out_be32(&uf_regs->upsmr, upsmr);
1636
1637 ugeth_enable(ugeth, COMM_DIR_RX_AND_TX);
1638 ugeth_activate(ugeth);
1639 }
1640 } else if (ugeth->oldlink) {
1641 new_state = 1;
1642 ugeth->oldlink = 0;
1643 ugeth->oldspeed = 0;
1644 ugeth->oldduplex = -1;
1645 }
1646
1647 if (new_state && netif_msg_link(ugeth))
1648 phy_print_status(phydev);
1649}
1650
1651/* Initialize TBI PHY interface for communicating with the
1652 * SERDES lynx PHY on the chip. We communicate with this PHY
1653 * through the MDIO bus on each controller, treating it as a
1654 * "normal" PHY at the address found in the UTBIPA register. We assume
1655 * that the UTBIPA register is valid. Either the MDIO bus code will set
1656 * it to a value that doesn't conflict with other PHYs on the bus, or the
1657 * value doesn't matter, as there are no other PHYs on the bus.
1658 */
1659static void uec_configure_serdes(struct net_device *dev)
1660{
1661 struct ucc_geth_private *ugeth = netdev_priv(dev);
1662 struct ucc_geth_info *ug_info = ugeth->ug_info;
1663 struct phy_device *tbiphy;
1664
1665 if (!ug_info->tbi_node) {
1666 dev_warn(&dev->dev, "SGMII mode requires that the device "
1667 "tree specify a tbi-handle\n");
1668 return;
1669 }
1670
1671 tbiphy = of_phy_find_device(ug_info->tbi_node);
1672 if (!tbiphy) {
1673 dev_err(&dev->dev, "error: Could not get TBI device\n");
1674 return;
1675 }
1676
1677 /*
1678 * If the link is already up, we must already be ok, and don't need to
1679 * configure and reset the TBI<->SerDes link. Maybe U-Boot configured
1680 * everything for us? Resetting it takes the link down and requires
1681 * several seconds for it to come back.
1682 */
1683 if (phy_read(tbiphy, ENET_TBI_MII_SR) & TBISR_LSTATUS) {
1684 put_device(&tbiphy->mdio.dev);
1685 return;
1686 }
1687
1688 /* Single clk mode, mii mode off(for serdes communication) */
1689 phy_write(tbiphy, ENET_TBI_MII_ANA, TBIANA_SETTINGS);
1690
1691 phy_write(tbiphy, ENET_TBI_MII_TBICON, TBICON_CLK_SELECT);
1692
1693 phy_write(tbiphy, ENET_TBI_MII_CR, TBICR_SETTINGS);
1694
1695 put_device(&tbiphy->mdio.dev);
1696}
1697
1698/* Configure the PHY for dev.
1699 * returns 0 if success. -1 if failure
1700 */
1701static int init_phy(struct net_device *dev)
1702{
1703 struct ucc_geth_private *priv = netdev_priv(dev);
1704 struct ucc_geth_info *ug_info = priv->ug_info;
1705 struct phy_device *phydev;
1706
1707 priv->oldlink = 0;
1708 priv->oldspeed = 0;
1709 priv->oldduplex = -1;
1710
1711 phydev = of_phy_connect(dev, ug_info->phy_node, &adjust_link, 0,
1712 priv->phy_interface);
1713 if (!phydev) {
1714 dev_err(&dev->dev, "Could not attach to PHY\n");
1715 return -ENODEV;
1716 }
1717
1718 if (priv->phy_interface == PHY_INTERFACE_MODE_SGMII)
1719 uec_configure_serdes(dev);
1720
1721 phy_set_max_speed(phydev, priv->max_speed);
1722
1723 priv->phydev = phydev;
1724
1725 return 0;
1726}
1727
1728static void ugeth_dump_regs(struct ucc_geth_private *ugeth)
1729{
1730#ifdef DEBUG
1731 ucc_fast_dump_regs(ugeth->uccf);
1732 dump_regs(ugeth);
1733 dump_bds(ugeth);
1734#endif
1735}
1736
1737static int ugeth_82xx_filtering_clear_all_addr_in_hash(struct ucc_geth_private *
1738 ugeth,
1739 enum enet_addr_type
1740 enet_addr_type)
1741{
1742 struct ucc_geth_82xx_address_filtering_pram __iomem *p_82xx_addr_filt;
1743 struct ucc_fast_private *uccf;
1744 enum comm_dir comm_dir;
1745 struct list_head *p_lh;
1746 u16 i, num;
1747 u32 __iomem *addr_h;
1748 u32 __iomem *addr_l;
1749 u8 *p_counter;
1750
1751 uccf = ugeth->uccf;
1752
1753 p_82xx_addr_filt =
1754 (struct ucc_geth_82xx_address_filtering_pram __iomem *)
1755 ugeth->p_rx_glbl_pram->addressfiltering;
1756
1757 if (enet_addr_type == ENET_ADDR_TYPE_GROUP) {
1758 addr_h = &(p_82xx_addr_filt->gaddr_h);
1759 addr_l = &(p_82xx_addr_filt->gaddr_l);
1760 p_lh = &ugeth->group_hash_q;
1761 p_counter = &(ugeth->numGroupAddrInHash);
1762 } else if (enet_addr_type == ENET_ADDR_TYPE_INDIVIDUAL) {
1763 addr_h = &(p_82xx_addr_filt->iaddr_h);
1764 addr_l = &(p_82xx_addr_filt->iaddr_l);
1765 p_lh = &ugeth->ind_hash_q;
1766 p_counter = &(ugeth->numIndAddrInHash);
1767 } else
1768 return -EINVAL;
1769
1770 comm_dir = 0;
1771 if (uccf->enabled_tx)
1772 comm_dir |= COMM_DIR_TX;
1773 if (uccf->enabled_rx)
1774 comm_dir |= COMM_DIR_RX;
1775 if (comm_dir)
1776 ugeth_disable(ugeth, comm_dir);
1777
1778 /* Clear the hash table. */
1779 out_be32(addr_h, 0x00000000);
1780 out_be32(addr_l, 0x00000000);
1781
1782 if (!p_lh)
1783 return 0;
1784
1785 num = *p_counter;
1786
1787 /* Delete all remaining CQ elements */
1788 for (i = 0; i < num; i++)
1789 put_enet_addr_container(ENET_ADDR_CONT_ENTRY(dequeue(p_lh)));
1790
1791 *p_counter = 0;
1792
1793 if (comm_dir)
1794 ugeth_enable(ugeth, comm_dir);
1795
1796 return 0;
1797}
1798
1799static int ugeth_82xx_filtering_clear_addr_in_paddr(struct ucc_geth_private *ugeth,
1800 u8 paddr_num)
1801{
1802 ugeth->indAddrRegUsed[paddr_num] = 0; /* mark this paddr as not used */
1803 return hw_clear_addr_in_paddr(ugeth, paddr_num);/* clear in hardware */
1804}
1805
1806static void ucc_geth_free_rx(struct ucc_geth_private *ugeth)
1807{
1808 struct ucc_geth_info *ug_info;
1809 struct ucc_fast_info *uf_info;
1810 u16 i, j;
1811 u8 __iomem *bd;
1812
1813
1814 ug_info = ugeth->ug_info;
1815 uf_info = &ug_info->uf_info;
1816
1817 for (i = 0; i < ucc_geth_rx_queues(ugeth->ug_info); i++) {
1818 if (ugeth->p_rx_bd_ring[i]) {
1819 /* Return existing data buffers in ring */
1820 bd = ugeth->p_rx_bd_ring[i];
1821 for (j = 0; j < ugeth->ug_info->bdRingLenRx[i]; j++) {
1822 if (ugeth->rx_skbuff[i][j]) {
1823 dma_unmap_single(ugeth->dev,
1824 in_be32(&((struct qe_bd __iomem *)bd)->buf),
1825 ugeth->ug_info->
1826 uf_info.max_rx_buf_length +
1827 UCC_GETH_RX_DATA_BUF_ALIGNMENT,
1828 DMA_FROM_DEVICE);
1829 dev_kfree_skb_any(
1830 ugeth->rx_skbuff[i][j]);
1831 ugeth->rx_skbuff[i][j] = NULL;
1832 }
1833 bd += sizeof(struct qe_bd);
1834 }
1835
1836 kfree(ugeth->rx_skbuff[i]);
1837
1838 kfree(ugeth->p_rx_bd_ring[i]);
1839 ugeth->p_rx_bd_ring[i] = NULL;
1840 }
1841 }
1842
1843}
1844
1845static void ucc_geth_free_tx(struct ucc_geth_private *ugeth)
1846{
1847 struct ucc_geth_info *ug_info;
1848 struct ucc_fast_info *uf_info;
1849 u16 i, j;
1850 u8 __iomem *bd;
1851
1852 netdev_reset_queue(ugeth->ndev);
1853
1854 ug_info = ugeth->ug_info;
1855 uf_info = &ug_info->uf_info;
1856
1857 for (i = 0; i < ucc_geth_tx_queues(ugeth->ug_info); i++) {
1858 bd = ugeth->p_tx_bd_ring[i];
1859 if (!bd)
1860 continue;
1861 for (j = 0; j < ugeth->ug_info->bdRingLenTx[i]; j++) {
1862 if (ugeth->tx_skbuff[i][j]) {
1863 dma_unmap_single(ugeth->dev,
1864 in_be32(&((struct qe_bd __iomem *)bd)->buf),
1865 (in_be32((u32 __iomem *)bd) &
1866 BD_LENGTH_MASK),
1867 DMA_TO_DEVICE);
1868 dev_kfree_skb_any(ugeth->tx_skbuff[i][j]);
1869 ugeth->tx_skbuff[i][j] = NULL;
1870 }
1871 }
1872
1873 kfree(ugeth->tx_skbuff[i]);
1874
1875 kfree(ugeth->p_tx_bd_ring[i]);
1876 ugeth->p_tx_bd_ring[i] = NULL;
1877 }
1878
1879}
1880
1881static void ucc_geth_memclean(struct ucc_geth_private *ugeth)
1882{
1883 if (!ugeth)
1884 return;
1885
1886 if (ugeth->uccf) {
1887 ucc_fast_free(ugeth->uccf);
1888 ugeth->uccf = NULL;
1889 }
1890
1891 qe_muram_free_addr(ugeth->p_thread_data_tx);
1892 ugeth->p_thread_data_tx = NULL;
1893
1894 qe_muram_free_addr(ugeth->p_thread_data_rx);
1895 ugeth->p_thread_data_rx = NULL;
1896
1897 qe_muram_free_addr(ugeth->p_exf_glbl_param);
1898 ugeth->p_exf_glbl_param = NULL;
1899
1900 qe_muram_free_addr(ugeth->p_rx_glbl_pram);
1901 ugeth->p_rx_glbl_pram = NULL;
1902
1903 qe_muram_free_addr(ugeth->p_tx_glbl_pram);
1904 ugeth->p_tx_glbl_pram = NULL;
1905
1906 qe_muram_free_addr(ugeth->p_send_q_mem_reg);
1907 ugeth->p_send_q_mem_reg = NULL;
1908
1909 qe_muram_free_addr(ugeth->p_scheduler);
1910 ugeth->p_scheduler = NULL;
1911
1912 qe_muram_free_addr(ugeth->p_tx_fw_statistics_pram);
1913 ugeth->p_tx_fw_statistics_pram = NULL;
1914
1915 qe_muram_free_addr(ugeth->p_rx_fw_statistics_pram);
1916 ugeth->p_rx_fw_statistics_pram = NULL;
1917
1918 qe_muram_free_addr(ugeth->p_rx_irq_coalescing_tbl);
1919 ugeth->p_rx_irq_coalescing_tbl = NULL;
1920
1921 qe_muram_free_addr(ugeth->p_rx_bd_qs_tbl);
1922 ugeth->p_rx_bd_qs_tbl = NULL;
1923
1924 if (ugeth->p_init_enet_param_shadow) {
1925 return_init_enet_entries(ugeth,
1926 &(ugeth->p_init_enet_param_shadow->
1927 rxthread[0]),
1928 ENET_INIT_PARAM_MAX_ENTRIES_RX,
1929 ugeth->ug_info->riscRx, 1);
1930 return_init_enet_entries(ugeth,
1931 &(ugeth->p_init_enet_param_shadow->
1932 txthread[0]),
1933 ENET_INIT_PARAM_MAX_ENTRIES_TX,
1934 ugeth->ug_info->riscTx, 0);
1935 kfree(ugeth->p_init_enet_param_shadow);
1936 ugeth->p_init_enet_param_shadow = NULL;
1937 }
1938 ucc_geth_free_tx(ugeth);
1939 ucc_geth_free_rx(ugeth);
1940 while (!list_empty(&ugeth->group_hash_q))
1941 put_enet_addr_container(ENET_ADDR_CONT_ENTRY
1942 (dequeue(&ugeth->group_hash_q)));
1943 while (!list_empty(&ugeth->ind_hash_q))
1944 put_enet_addr_container(ENET_ADDR_CONT_ENTRY
1945 (dequeue(&ugeth->ind_hash_q)));
1946 if (ugeth->ug_regs) {
1947 iounmap(ugeth->ug_regs);
1948 ugeth->ug_regs = NULL;
1949 }
1950}
1951
1952static void ucc_geth_set_multi(struct net_device *dev)
1953{
1954 struct ucc_geth_private *ugeth;
1955 struct netdev_hw_addr *ha;
1956 struct ucc_fast __iomem *uf_regs;
1957 struct ucc_geth_82xx_address_filtering_pram __iomem *p_82xx_addr_filt;
1958
1959 ugeth = netdev_priv(dev);
1960
1961 uf_regs = ugeth->uccf->uf_regs;
1962
1963 if (dev->flags & IFF_PROMISC) {
1964 setbits32(&uf_regs->upsmr, UCC_GETH_UPSMR_PRO);
1965 } else {
1966 clrbits32(&uf_regs->upsmr, UCC_GETH_UPSMR_PRO);
1967
1968 p_82xx_addr_filt =
1969 (struct ucc_geth_82xx_address_filtering_pram __iomem *) ugeth->
1970 p_rx_glbl_pram->addressfiltering;
1971
1972 if (dev->flags & IFF_ALLMULTI) {
1973 /* Catch all multicast addresses, so set the
1974 * filter to all 1's.
1975 */
1976 out_be32(&p_82xx_addr_filt->gaddr_h, 0xffffffff);
1977 out_be32(&p_82xx_addr_filt->gaddr_l, 0xffffffff);
1978 } else {
1979 /* Clear filter and add the addresses in the list.
1980 */
1981 out_be32(&p_82xx_addr_filt->gaddr_h, 0x0);
1982 out_be32(&p_82xx_addr_filt->gaddr_l, 0x0);
1983
1984 netdev_for_each_mc_addr(ha, dev) {
1985 /* Ask CPM to run CRC and set bit in
1986 * filter mask.
1987 */
1988 hw_add_addr_in_hash(ugeth, ha->addr);
1989 }
1990 }
1991 }
1992}
1993
1994static void ucc_geth_stop(struct ucc_geth_private *ugeth)
1995{
1996 struct ucc_geth __iomem *ug_regs = ugeth->ug_regs;
1997 struct phy_device *phydev = ugeth->phydev;
1998
1999 ugeth_vdbg("%s: IN", __func__);
2000
2001 /*
2002 * Tell the kernel the link is down.
2003 * Must be done before disabling the controller
2004 * or deadlock may happen.
2005 */
2006 phy_stop(phydev);
2007
2008 /* Disable the controller */
2009 ugeth_disable(ugeth, COMM_DIR_RX_AND_TX);
2010
2011 /* Mask all interrupts */
2012 out_be32(ugeth->uccf->p_uccm, 0x00000000);
2013
2014 /* Clear all interrupts */
2015 out_be32(ugeth->uccf->p_ucce, 0xffffffff);
2016
2017 /* Disable Rx and Tx */
2018 clrbits32(&ug_regs->maccfg1, MACCFG1_ENABLE_RX | MACCFG1_ENABLE_TX);
2019
2020 ucc_geth_memclean(ugeth);
2021}
2022
2023static int ucc_struct_init(struct ucc_geth_private *ugeth)
2024{
2025 struct ucc_geth_info *ug_info;
2026 struct ucc_fast_info *uf_info;
2027 int i;
2028
2029 ug_info = ugeth->ug_info;
2030 uf_info = &ug_info->uf_info;
2031
2032 /* Rx BD lengths */
2033 for (i = 0; i < ucc_geth_rx_queues(ug_info); i++) {
2034 if ((ug_info->bdRingLenRx[i] < UCC_GETH_RX_BD_RING_SIZE_MIN) ||
2035 (ug_info->bdRingLenRx[i] %
2036 UCC_GETH_RX_BD_RING_SIZE_ALIGNMENT)) {
2037 if (netif_msg_probe(ugeth))
2038 pr_err("Rx BD ring length must be multiple of 4, no smaller than 8\n");
2039 return -EINVAL;
2040 }
2041 }
2042
2043 /* Tx BD lengths */
2044 for (i = 0; i < ucc_geth_tx_queues(ug_info); i++) {
2045 if (ug_info->bdRingLenTx[i] < UCC_GETH_TX_BD_RING_SIZE_MIN) {
2046 if (netif_msg_probe(ugeth))
2047 pr_err("Tx BD ring length must be no smaller than 2\n");
2048 return -EINVAL;
2049 }
2050 }
2051
2052 /* mrblr */
2053 if ((uf_info->max_rx_buf_length == 0) ||
2054 (uf_info->max_rx_buf_length % UCC_GETH_MRBLR_ALIGNMENT)) {
2055 if (netif_msg_probe(ugeth))
2056 pr_err("max_rx_buf_length must be non-zero multiple of 128\n");
2057 return -EINVAL;
2058 }
2059
2060 /* num Tx queues */
2061 if (ucc_geth_tx_queues(ug_info) > NUM_TX_QUEUES) {
2062 if (netif_msg_probe(ugeth))
2063 pr_err("number of tx queues too large\n");
2064 return -EINVAL;
2065 }
2066
2067 /* num Rx queues */
2068 if (ucc_geth_rx_queues(ug_info) > NUM_RX_QUEUES) {
2069 if (netif_msg_probe(ugeth))
2070 pr_err("number of rx queues too large\n");
2071 return -EINVAL;
2072 }
2073
2074 /* l2qt */
2075 for (i = 0; i < UCC_GETH_VLAN_PRIORITY_MAX; i++) {
2076 if (ug_info->l2qt[i] >= ucc_geth_rx_queues(ug_info)) {
2077 if (netif_msg_probe(ugeth))
2078 pr_err("VLAN priority table entry must not be larger than number of Rx queues\n");
2079 return -EINVAL;
2080 }
2081 }
2082
2083 /* l3qt */
2084 for (i = 0; i < UCC_GETH_IP_PRIORITY_MAX; i++) {
2085 if (ug_info->l3qt[i] >= ucc_geth_rx_queues(ug_info)) {
2086 if (netif_msg_probe(ugeth))
2087 pr_err("IP priority table entry must not be larger than number of Rx queues\n");
2088 return -EINVAL;
2089 }
2090 }
2091
2092 if (ug_info->cam && !ug_info->ecamptr) {
2093 if (netif_msg_probe(ugeth))
2094 pr_err("If cam mode is chosen, must supply cam ptr\n");
2095 return -EINVAL;
2096 }
2097
2098 if ((ug_info->numStationAddresses !=
2099 UCC_GETH_NUM_OF_STATION_ADDRESSES_1) &&
2100 ug_info->rxExtendedFiltering) {
2101 if (netif_msg_probe(ugeth))
2102 pr_err("Number of station addresses greater than 1 not allowed in extended parsing mode\n");
2103 return -EINVAL;
2104 }
2105
2106 /* Generate uccm_mask for receive */
2107 uf_info->uccm_mask = ug_info->eventRegMask & UCCE_OTHER;/* Errors */
2108 for (i = 0; i < ucc_geth_rx_queues(ug_info); i++)
2109 uf_info->uccm_mask |= (UCC_GETH_UCCE_RXF0 << i);
2110
2111 for (i = 0; i < ucc_geth_tx_queues(ug_info); i++)
2112 uf_info->uccm_mask |= (UCC_GETH_UCCE_TXB0 << i);
2113 /* Initialize the general fast UCC block. */
2114 if (ucc_fast_init(uf_info, &ugeth->uccf)) {
2115 if (netif_msg_probe(ugeth))
2116 pr_err("Failed to init uccf\n");
2117 return -ENOMEM;
2118 }
2119
2120 /* read the number of risc engines, update the riscTx and riscRx
2121 * if there are 4 riscs in QE
2122 */
2123 if (qe_get_num_of_risc() == 4) {
2124 ug_info->riscTx = QE_RISC_ALLOCATION_FOUR_RISCS;
2125 ug_info->riscRx = QE_RISC_ALLOCATION_FOUR_RISCS;
2126 }
2127
2128 ugeth->ug_regs = ioremap(uf_info->regs, sizeof(*ugeth->ug_regs));
2129 if (!ugeth->ug_regs) {
2130 if (netif_msg_probe(ugeth))
2131 pr_err("Failed to ioremap regs\n");
2132 return -ENOMEM;
2133 }
2134
2135 return 0;
2136}
2137
2138static int ucc_geth_alloc_tx(struct ucc_geth_private *ugeth)
2139{
2140 struct ucc_geth_info *ug_info;
2141 struct ucc_fast_info *uf_info;
2142 int length;
2143 u16 i, j;
2144 u8 __iomem *bd;
2145
2146 ug_info = ugeth->ug_info;
2147 uf_info = &ug_info->uf_info;
2148
2149 /* Allocate Tx bds */
2150 for (j = 0; j < ucc_geth_tx_queues(ug_info); j++) {
2151 u32 align = max(UCC_GETH_TX_BD_RING_ALIGNMENT,
2152 UCC_GETH_TX_BD_RING_SIZE_MEMORY_ALIGNMENT);
2153 u32 alloc;
2154
2155 length = ug_info->bdRingLenTx[j] * sizeof(struct qe_bd);
2156 alloc = round_up(length, align);
2157 alloc = roundup_pow_of_two(alloc);
2158
2159 ugeth->p_tx_bd_ring[j] = kmalloc(alloc, GFP_KERNEL);
2160
2161 if (!ugeth->p_tx_bd_ring[j]) {
2162 if (netif_msg_ifup(ugeth))
2163 pr_err("Can not allocate memory for Tx bd rings\n");
2164 return -ENOMEM;
2165 }
2166 /* Zero unused end of bd ring, according to spec */
2167 memset(ugeth->p_tx_bd_ring[j] + length, 0, alloc - length);
2168 }
2169
2170 /* Init Tx bds */
2171 for (j = 0; j < ucc_geth_tx_queues(ug_info); j++) {
2172 /* Setup the skbuff rings */
2173 ugeth->tx_skbuff[j] =
2174 kcalloc(ugeth->ug_info->bdRingLenTx[j],
2175 sizeof(struct sk_buff *), GFP_KERNEL);
2176
2177 if (ugeth->tx_skbuff[j] == NULL) {
2178 if (netif_msg_ifup(ugeth))
2179 pr_err("Could not allocate tx_skbuff\n");
2180 return -ENOMEM;
2181 }
2182
2183 ugeth->skb_curtx[j] = ugeth->skb_dirtytx[j] = 0;
2184 bd = ugeth->confBd[j] = ugeth->txBd[j] = ugeth->p_tx_bd_ring[j];
2185 for (i = 0; i < ug_info->bdRingLenTx[j]; i++) {
2186 /* clear bd buffer */
2187 out_be32(&((struct qe_bd __iomem *)bd)->buf, 0);
2188 /* set bd status and length */
2189 out_be32((u32 __iomem *)bd, 0);
2190 bd += sizeof(struct qe_bd);
2191 }
2192 bd -= sizeof(struct qe_bd);
2193 /* set bd status and length */
2194 out_be32((u32 __iomem *)bd, T_W); /* for last BD set Wrap bit */
2195 }
2196
2197 return 0;
2198}
2199
2200static int ucc_geth_alloc_rx(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 Rx bds */
2212 for (j = 0; j < ucc_geth_rx_queues(ug_info); j++) {
2213 u32 align = UCC_GETH_RX_BD_RING_ALIGNMENT;
2214 u32 alloc;
2215
2216 length = ug_info->bdRingLenRx[j] * sizeof(struct qe_bd);
2217 alloc = round_up(length, align);
2218 alloc = roundup_pow_of_two(alloc);
2219
2220 ugeth->p_rx_bd_ring[j] = kmalloc(alloc, GFP_KERNEL);
2221 if (!ugeth->p_rx_bd_ring[j]) {
2222 if (netif_msg_ifup(ugeth))
2223 pr_err("Can not allocate memory for Rx bd rings\n");
2224 return -ENOMEM;
2225 }
2226 }
2227
2228 /* Init Rx bds */
2229 for (j = 0; j < ucc_geth_rx_queues(ug_info); j++) {
2230 /* Setup the skbuff rings */
2231 ugeth->rx_skbuff[j] =
2232 kcalloc(ugeth->ug_info->bdRingLenRx[j],
2233 sizeof(struct sk_buff *), GFP_KERNEL);
2234
2235 if (ugeth->rx_skbuff[j] == NULL) {
2236 if (netif_msg_ifup(ugeth))
2237 pr_err("Could not allocate rx_skbuff\n");
2238 return -ENOMEM;
2239 }
2240
2241 ugeth->skb_currx[j] = 0;
2242 bd = ugeth->rxBd[j] = ugeth->p_rx_bd_ring[j];
2243 for (i = 0; i < ug_info->bdRingLenRx[j]; i++) {
2244 /* set bd status and length */
2245 out_be32((u32 __iomem *)bd, R_I);
2246 /* clear bd buffer */
2247 out_be32(&((struct qe_bd __iomem *)bd)->buf, 0);
2248 bd += sizeof(struct qe_bd);
2249 }
2250 bd -= sizeof(struct qe_bd);
2251 /* set bd status and length */
2252 out_be32((u32 __iomem *)bd, R_W); /* for last BD set Wrap bit */
2253 }
2254
2255 return 0;
2256}
2257
2258static int ucc_geth_startup(struct ucc_geth_private *ugeth)
2259{
2260 struct ucc_geth_82xx_address_filtering_pram __iomem *p_82xx_addr_filt;
2261 struct ucc_geth_init_pram __iomem *p_init_enet_pram;
2262 struct ucc_fast_private *uccf;
2263 struct ucc_geth_info *ug_info;
2264 struct ucc_fast_info *uf_info;
2265 struct ucc_fast __iomem *uf_regs;
2266 struct ucc_geth __iomem *ug_regs;
2267 int ret_val = -EINVAL;
2268 u32 remoder = UCC_GETH_REMODER_INIT;
2269 u32 init_enet_pram_offset, cecr_subblock, command;
2270 u32 ifstat, i, j, size, l2qt, l3qt;
2271 u16 temoder = UCC_GETH_TEMODER_INIT;
2272 u8 function_code = 0;
2273 u8 __iomem *endOfRing;
2274 u8 numThreadsRxNumerical, numThreadsTxNumerical;
2275 s32 rx_glbl_pram_offset, tx_glbl_pram_offset;
2276
2277 ugeth_vdbg("%s: IN", __func__);
2278 uccf = ugeth->uccf;
2279 ug_info = ugeth->ug_info;
2280 uf_info = &ug_info->uf_info;
2281 uf_regs = uccf->uf_regs;
2282 ug_regs = ugeth->ug_regs;
2283
2284 numThreadsRxNumerical = ucc_geth_thread_count(ug_info->numThreadsRx);
2285 if (!numThreadsRxNumerical) {
2286 if (netif_msg_ifup(ugeth))
2287 pr_err("Bad number of Rx threads value\n");
2288 return -EINVAL;
2289 }
2290
2291 numThreadsTxNumerical = ucc_geth_thread_count(ug_info->numThreadsTx);
2292 if (!numThreadsTxNumerical) {
2293 if (netif_msg_ifup(ugeth))
2294 pr_err("Bad number of Tx threads value\n");
2295 return -EINVAL;
2296 }
2297
2298 /* Calculate rx_extended_features */
2299 ugeth->rx_non_dynamic_extended_features = ug_info->ipCheckSumCheck ||
2300 ug_info->ipAddressAlignment ||
2301 (ug_info->numStationAddresses !=
2302 UCC_GETH_NUM_OF_STATION_ADDRESSES_1);
2303
2304 ugeth->rx_extended_features = ugeth->rx_non_dynamic_extended_features ||
2305 (ug_info->vlanOperationTagged != UCC_GETH_VLAN_OPERATION_TAGGED_NOP) ||
2306 (ug_info->vlanOperationNonTagged !=
2307 UCC_GETH_VLAN_OPERATION_NON_TAGGED_NOP);
2308
2309 init_default_reg_vals(&uf_regs->upsmr,
2310 &ug_regs->maccfg1, &ug_regs->maccfg2);
2311
2312 /* Set UPSMR */
2313 /* For more details see the hardware spec. */
2314 init_rx_parameters(ug_info->bro,
2315 ug_info->rsh, ug_info->pro, &uf_regs->upsmr);
2316
2317 /* We're going to ignore other registers for now, */
2318 /* except as needed to get up and running */
2319
2320 /* Set MACCFG1 */
2321 /* For more details see the hardware spec. */
2322 init_flow_control_params(ug_info->aufc,
2323 ug_info->receiveFlowControl,
2324 ug_info->transmitFlowControl,
2325 ug_info->pausePeriod,
2326 ug_info->extensionField,
2327 &uf_regs->upsmr,
2328 &ug_regs->uempr, &ug_regs->maccfg1);
2329
2330 setbits32(&ug_regs->maccfg1, MACCFG1_ENABLE_RX | MACCFG1_ENABLE_TX);
2331
2332 /* Set IPGIFG */
2333 /* For more details see the hardware spec. */
2334 ret_val = init_inter_frame_gap_params(ug_info->nonBackToBackIfgPart1,
2335 ug_info->nonBackToBackIfgPart2,
2336 ug_info->
2337 miminumInterFrameGapEnforcement,
2338 ug_info->backToBackInterFrameGap,
2339 &ug_regs->ipgifg);
2340 if (ret_val != 0) {
2341 if (netif_msg_ifup(ugeth))
2342 pr_err("IPGIFG initialization parameter too large\n");
2343 return ret_val;
2344 }
2345
2346 /* Set HAFDUP */
2347 /* For more details see the hardware spec. */
2348 ret_val = init_half_duplex_params(ug_info->altBeb,
2349 ug_info->backPressureNoBackoff,
2350 ug_info->noBackoff,
2351 ug_info->excessDefer,
2352 ug_info->altBebTruncation,
2353 ug_info->maxRetransmission,
2354 ug_info->collisionWindow,
2355 &ug_regs->hafdup);
2356 if (ret_val != 0) {
2357 if (netif_msg_ifup(ugeth))
2358 pr_err("Half Duplex initialization parameter too large\n");
2359 return ret_val;
2360 }
2361
2362 /* Set IFSTAT */
2363 /* For more details see the hardware spec. */
2364 /* Read only - resets upon read */
2365 ifstat = in_be32(&ug_regs->ifstat);
2366
2367 /* Clear UEMPR */
2368 /* For more details see the hardware spec. */
2369 out_be32(&ug_regs->uempr, 0);
2370
2371 /* Set UESCR */
2372 /* For more details see the hardware spec. */
2373 init_hw_statistics_gathering_mode((ug_info->statisticsMode &
2374 UCC_GETH_STATISTICS_GATHERING_MODE_HARDWARE),
2375 0, &uf_regs->upsmr, &ug_regs->uescr);
2376
2377 ret_val = ucc_geth_alloc_tx(ugeth);
2378 if (ret_val != 0)
2379 return ret_val;
2380
2381 ret_val = ucc_geth_alloc_rx(ugeth);
2382 if (ret_val != 0)
2383 return ret_val;
2384
2385 /*
2386 * Global PRAM
2387 */
2388 /* Tx global PRAM */
2389 /* Allocate global tx parameter RAM page */
2390 tx_glbl_pram_offset =
2391 qe_muram_alloc(sizeof(struct ucc_geth_tx_global_pram),
2392 UCC_GETH_TX_GLOBAL_PRAM_ALIGNMENT);
2393 if (tx_glbl_pram_offset < 0) {
2394 if (netif_msg_ifup(ugeth))
2395 pr_err("Can not allocate DPRAM memory for p_tx_glbl_pram\n");
2396 return -ENOMEM;
2397 }
2398 ugeth->p_tx_glbl_pram = qe_muram_addr(tx_glbl_pram_offset);
2399 /* Fill global PRAM */
2400
2401 /* TQPTR */
2402 /* Size varies with number of Tx threads */
2403 ugeth->thread_dat_tx_offset =
2404 qe_muram_alloc(numThreadsTxNumerical *
2405 sizeof(struct ucc_geth_thread_data_tx) +
2406 32 * (numThreadsTxNumerical == 1),
2407 UCC_GETH_THREAD_DATA_ALIGNMENT);
2408 if (IS_ERR_VALUE(ugeth->thread_dat_tx_offset)) {
2409 if (netif_msg_ifup(ugeth))
2410 pr_err("Can not allocate DPRAM memory for p_thread_data_tx\n");
2411 return -ENOMEM;
2412 }
2413
2414 ugeth->p_thread_data_tx =
2415 (struct ucc_geth_thread_data_tx __iomem *) qe_muram_addr(ugeth->
2416 thread_dat_tx_offset);
2417 out_be32(&ugeth->p_tx_glbl_pram->tqptr, ugeth->thread_dat_tx_offset);
2418
2419 /* vtagtable */
2420 for (i = 0; i < UCC_GETH_TX_VTAG_TABLE_ENTRY_MAX; i++)
2421 out_be32(&ugeth->p_tx_glbl_pram->vtagtable[i],
2422 ug_info->vtagtable[i]);
2423
2424 /* iphoffset */
2425 for (i = 0; i < TX_IP_OFFSET_ENTRY_MAX; i++)
2426 out_8(&ugeth->p_tx_glbl_pram->iphoffset[i],
2427 ug_info->iphoffset[i]);
2428
2429 /* SQPTR */
2430 /* Size varies with number of Tx queues */
2431 ugeth->send_q_mem_reg_offset =
2432 qe_muram_alloc(ucc_geth_tx_queues(ug_info) *
2433 sizeof(struct ucc_geth_send_queue_qd),
2434 UCC_GETH_SEND_QUEUE_QUEUE_DESCRIPTOR_ALIGNMENT);
2435 if (IS_ERR_VALUE(ugeth->send_q_mem_reg_offset)) {
2436 if (netif_msg_ifup(ugeth))
2437 pr_err("Can not allocate DPRAM memory for p_send_q_mem_reg\n");
2438 return -ENOMEM;
2439 }
2440
2441 ugeth->p_send_q_mem_reg =
2442 (struct ucc_geth_send_queue_mem_region __iomem *) qe_muram_addr(ugeth->
2443 send_q_mem_reg_offset);
2444 out_be32(&ugeth->p_tx_glbl_pram->sqptr, ugeth->send_q_mem_reg_offset);
2445
2446 /* Setup the table */
2447 /* Assume BD rings are already established */
2448 for (i = 0; i < ucc_geth_tx_queues(ug_info); i++) {
2449 endOfRing =
2450 ugeth->p_tx_bd_ring[i] + (ug_info->bdRingLenTx[i] -
2451 1) * sizeof(struct qe_bd);
2452 out_be32(&ugeth->p_send_q_mem_reg->sqqd[i].bd_ring_base,
2453 (u32) virt_to_phys(ugeth->p_tx_bd_ring[i]));
2454 out_be32(&ugeth->p_send_q_mem_reg->sqqd[i].
2455 last_bd_completed_address,
2456 (u32) virt_to_phys(endOfRing));
2457 }
2458
2459 /* schedulerbasepointer */
2460
2461 if (ucc_geth_tx_queues(ug_info) > 1) {
2462 /* scheduler exists only if more than 1 tx queue */
2463 ugeth->scheduler_offset =
2464 qe_muram_alloc(sizeof(struct ucc_geth_scheduler),
2465 UCC_GETH_SCHEDULER_ALIGNMENT);
2466 if (IS_ERR_VALUE(ugeth->scheduler_offset)) {
2467 if (netif_msg_ifup(ugeth))
2468 pr_err("Can not allocate DPRAM memory for p_scheduler\n");
2469 return -ENOMEM;
2470 }
2471
2472 ugeth->p_scheduler =
2473 (struct ucc_geth_scheduler __iomem *) qe_muram_addr(ugeth->
2474 scheduler_offset);
2475 out_be32(&ugeth->p_tx_glbl_pram->schedulerbasepointer,
2476 ugeth->scheduler_offset);
2477
2478 /* Set values in scheduler */
2479 out_be32(&ugeth->p_scheduler->mblinterval,
2480 ug_info->mblinterval);
2481 out_be16(&ugeth->p_scheduler->nortsrbytetime,
2482 ug_info->nortsrbytetime);
2483 out_8(&ugeth->p_scheduler->fracsiz, ug_info->fracsiz);
2484 out_8(&ugeth->p_scheduler->strictpriorityq,
2485 ug_info->strictpriorityq);
2486 out_8(&ugeth->p_scheduler->txasap, ug_info->txasap);
2487 out_8(&ugeth->p_scheduler->extrabw, ug_info->extrabw);
2488 for (i = 0; i < NUM_TX_QUEUES; i++)
2489 out_8(&ugeth->p_scheduler->weightfactor[i],
2490 ug_info->weightfactor[i]);
2491
2492 /* Set pointers to cpucount registers in scheduler */
2493 ugeth->p_cpucount[0] = &(ugeth->p_scheduler->cpucount0);
2494 ugeth->p_cpucount[1] = &(ugeth->p_scheduler->cpucount1);
2495 ugeth->p_cpucount[2] = &(ugeth->p_scheduler->cpucount2);
2496 ugeth->p_cpucount[3] = &(ugeth->p_scheduler->cpucount3);
2497 ugeth->p_cpucount[4] = &(ugeth->p_scheduler->cpucount4);
2498 ugeth->p_cpucount[5] = &(ugeth->p_scheduler->cpucount5);
2499 ugeth->p_cpucount[6] = &(ugeth->p_scheduler->cpucount6);
2500 ugeth->p_cpucount[7] = &(ugeth->p_scheduler->cpucount7);
2501 }
2502
2503 /* schedulerbasepointer */
2504 /* TxRMON_PTR (statistics) */
2505 if (ug_info->
2506 statisticsMode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_TX) {
2507 ugeth->tx_fw_statistics_pram_offset =
2508 qe_muram_alloc(sizeof
2509 (struct ucc_geth_tx_firmware_statistics_pram),
2510 UCC_GETH_TX_STATISTICS_ALIGNMENT);
2511 if (IS_ERR_VALUE(ugeth->tx_fw_statistics_pram_offset)) {
2512 if (netif_msg_ifup(ugeth))
2513 pr_err("Can not allocate DPRAM memory for p_tx_fw_statistics_pram\n");
2514 return -ENOMEM;
2515 }
2516 ugeth->p_tx_fw_statistics_pram =
2517 (struct ucc_geth_tx_firmware_statistics_pram __iomem *)
2518 qe_muram_addr(ugeth->tx_fw_statistics_pram_offset);
2519 }
2520
2521 /* temoder */
2522 /* Already has speed set */
2523
2524 if (ucc_geth_tx_queues(ug_info) > 1)
2525 temoder |= TEMODER_SCHEDULER_ENABLE;
2526 if (ug_info->ipCheckSumGenerate)
2527 temoder |= TEMODER_IP_CHECKSUM_GENERATE;
2528 temoder |= ((ucc_geth_tx_queues(ug_info) - 1) << TEMODER_NUM_OF_QUEUES_SHIFT);
2529 out_be16(&ugeth->p_tx_glbl_pram->temoder, temoder);
2530
2531 /* Function code register value to be used later */
2532 function_code = UCC_BMR_BO_BE | UCC_BMR_GBL;
2533 /* Required for QE */
2534
2535 /* function code register */
2536 out_be32(&ugeth->p_tx_glbl_pram->tstate, ((u32) function_code) << 24);
2537
2538 /* Rx global PRAM */
2539 /* Allocate global rx parameter RAM page */
2540 rx_glbl_pram_offset =
2541 qe_muram_alloc(sizeof(struct ucc_geth_rx_global_pram),
2542 UCC_GETH_RX_GLOBAL_PRAM_ALIGNMENT);
2543 if (rx_glbl_pram_offset < 0) {
2544 if (netif_msg_ifup(ugeth))
2545 pr_err("Can not allocate DPRAM memory for p_rx_glbl_pram\n");
2546 return -ENOMEM;
2547 }
2548 ugeth->p_rx_glbl_pram = qe_muram_addr(rx_glbl_pram_offset);
2549 /* Fill global PRAM */
2550
2551 /* RQPTR */
2552 /* Size varies with number of Rx threads */
2553 ugeth->thread_dat_rx_offset =
2554 qe_muram_alloc(numThreadsRxNumerical *
2555 sizeof(struct ucc_geth_thread_data_rx),
2556 UCC_GETH_THREAD_DATA_ALIGNMENT);
2557 if (IS_ERR_VALUE(ugeth->thread_dat_rx_offset)) {
2558 if (netif_msg_ifup(ugeth))
2559 pr_err("Can not allocate DPRAM memory for p_thread_data_rx\n");
2560 return -ENOMEM;
2561 }
2562
2563 ugeth->p_thread_data_rx =
2564 (struct ucc_geth_thread_data_rx __iomem *) qe_muram_addr(ugeth->
2565 thread_dat_rx_offset);
2566 out_be32(&ugeth->p_rx_glbl_pram->rqptr, ugeth->thread_dat_rx_offset);
2567
2568 /* typeorlen */
2569 out_be16(&ugeth->p_rx_glbl_pram->typeorlen, ug_info->typeorlen);
2570
2571 /* rxrmonbaseptr (statistics) */
2572 if (ug_info->
2573 statisticsMode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_RX) {
2574 ugeth->rx_fw_statistics_pram_offset =
2575 qe_muram_alloc(sizeof
2576 (struct ucc_geth_rx_firmware_statistics_pram),
2577 UCC_GETH_RX_STATISTICS_ALIGNMENT);
2578 if (IS_ERR_VALUE(ugeth->rx_fw_statistics_pram_offset)) {
2579 if (netif_msg_ifup(ugeth))
2580 pr_err("Can not allocate DPRAM memory for p_rx_fw_statistics_pram\n");
2581 return -ENOMEM;
2582 }
2583 ugeth->p_rx_fw_statistics_pram =
2584 (struct ucc_geth_rx_firmware_statistics_pram __iomem *)
2585 qe_muram_addr(ugeth->rx_fw_statistics_pram_offset);
2586 }
2587
2588 /* intCoalescingPtr */
2589
2590 /* Size varies with number of Rx queues */
2591 ugeth->rx_irq_coalescing_tbl_offset =
2592 qe_muram_alloc(ucc_geth_rx_queues(ug_info) *
2593 sizeof(struct ucc_geth_rx_interrupt_coalescing_entry)
2594 + 4, UCC_GETH_RX_INTERRUPT_COALESCING_ALIGNMENT);
2595 if (IS_ERR_VALUE(ugeth->rx_irq_coalescing_tbl_offset)) {
2596 if (netif_msg_ifup(ugeth))
2597 pr_err("Can not allocate DPRAM memory for p_rx_irq_coalescing_tbl\n");
2598 return -ENOMEM;
2599 }
2600
2601 ugeth->p_rx_irq_coalescing_tbl =
2602 (struct ucc_geth_rx_interrupt_coalescing_table __iomem *)
2603 qe_muram_addr(ugeth->rx_irq_coalescing_tbl_offset);
2604 out_be32(&ugeth->p_rx_glbl_pram->intcoalescingptr,
2605 ugeth->rx_irq_coalescing_tbl_offset);
2606
2607 /* Fill interrupt coalescing table */
2608 for (i = 0; i < ucc_geth_rx_queues(ug_info); i++) {
2609 out_be32(&ugeth->p_rx_irq_coalescing_tbl->coalescingentry[i].
2610 interruptcoalescingmaxvalue,
2611 ug_info->interruptcoalescingmaxvalue[i]);
2612 out_be32(&ugeth->p_rx_irq_coalescing_tbl->coalescingentry[i].
2613 interruptcoalescingcounter,
2614 ug_info->interruptcoalescingmaxvalue[i]);
2615 }
2616
2617 /* MRBLR */
2618 init_max_rx_buff_len(uf_info->max_rx_buf_length,
2619 &ugeth->p_rx_glbl_pram->mrblr);
2620 /* MFLR */
2621 out_be16(&ugeth->p_rx_glbl_pram->mflr, ug_info->maxFrameLength);
2622 /* MINFLR */
2623 init_min_frame_len(ug_info->minFrameLength,
2624 &ugeth->p_rx_glbl_pram->minflr,
2625 &ugeth->p_rx_glbl_pram->mrblr);
2626 /* MAXD1 */
2627 out_be16(&ugeth->p_rx_glbl_pram->maxd1, ug_info->maxD1Length);
2628 /* MAXD2 */
2629 out_be16(&ugeth->p_rx_glbl_pram->maxd2, ug_info->maxD2Length);
2630
2631 /* l2qt */
2632 l2qt = 0;
2633 for (i = 0; i < UCC_GETH_VLAN_PRIORITY_MAX; i++)
2634 l2qt |= (ug_info->l2qt[i] << (28 - 4 * i));
2635 out_be32(&ugeth->p_rx_glbl_pram->l2qt, l2qt);
2636
2637 /* l3qt */
2638 for (j = 0; j < UCC_GETH_IP_PRIORITY_MAX; j += 8) {
2639 l3qt = 0;
2640 for (i = 0; i < 8; i++)
2641 l3qt |= (ug_info->l3qt[j + i] << (28 - 4 * i));
2642 out_be32(&ugeth->p_rx_glbl_pram->l3qt[j/8], l3qt);
2643 }
2644
2645 /* vlantype */
2646 out_be16(&ugeth->p_rx_glbl_pram->vlantype, ug_info->vlantype);
2647
2648 /* vlantci */
2649 out_be16(&ugeth->p_rx_glbl_pram->vlantci, ug_info->vlantci);
2650
2651 /* ecamptr */
2652 out_be32(&ugeth->p_rx_glbl_pram->ecamptr, ug_info->ecamptr);
2653
2654 /* RBDQPTR */
2655 /* Size varies with number of Rx queues */
2656 ugeth->rx_bd_qs_tbl_offset =
2657 qe_muram_alloc(ucc_geth_rx_queues(ug_info) *
2658 (sizeof(struct ucc_geth_rx_bd_queues_entry) +
2659 sizeof(struct ucc_geth_rx_prefetched_bds)),
2660 UCC_GETH_RX_BD_QUEUES_ALIGNMENT);
2661 if (IS_ERR_VALUE(ugeth->rx_bd_qs_tbl_offset)) {
2662 if (netif_msg_ifup(ugeth))
2663 pr_err("Can not allocate DPRAM memory for p_rx_bd_qs_tbl\n");
2664 return -ENOMEM;
2665 }
2666
2667 ugeth->p_rx_bd_qs_tbl =
2668 (struct ucc_geth_rx_bd_queues_entry __iomem *) qe_muram_addr(ugeth->
2669 rx_bd_qs_tbl_offset);
2670 out_be32(&ugeth->p_rx_glbl_pram->rbdqptr, ugeth->rx_bd_qs_tbl_offset);
2671
2672 /* Setup the table */
2673 /* Assume BD rings are already established */
2674 for (i = 0; i < ucc_geth_rx_queues(ug_info); i++) {
2675 out_be32(&ugeth->p_rx_bd_qs_tbl[i].externalbdbaseptr,
2676 (u32) virt_to_phys(ugeth->p_rx_bd_ring[i]));
2677 /* rest of fields handled by QE */
2678 }
2679
2680 /* remoder */
2681 /* Already has speed set */
2682
2683 if (ugeth->rx_extended_features)
2684 remoder |= REMODER_RX_EXTENDED_FEATURES;
2685 if (ug_info->rxExtendedFiltering)
2686 remoder |= REMODER_RX_EXTENDED_FILTERING;
2687 if (ug_info->dynamicMaxFrameLength)
2688 remoder |= REMODER_DYNAMIC_MAX_FRAME_LENGTH;
2689 if (ug_info->dynamicMinFrameLength)
2690 remoder |= REMODER_DYNAMIC_MIN_FRAME_LENGTH;
2691 remoder |=
2692 ug_info->vlanOperationTagged << REMODER_VLAN_OPERATION_TAGGED_SHIFT;
2693 remoder |=
2694 ug_info->
2695 vlanOperationNonTagged << REMODER_VLAN_OPERATION_NON_TAGGED_SHIFT;
2696 remoder |= ug_info->rxQoSMode << REMODER_RX_QOS_MODE_SHIFT;
2697 remoder |= ((ucc_geth_rx_queues(ug_info) - 1) << REMODER_NUM_OF_QUEUES_SHIFT);
2698 if (ug_info->ipCheckSumCheck)
2699 remoder |= REMODER_IP_CHECKSUM_CHECK;
2700 if (ug_info->ipAddressAlignment)
2701 remoder |= REMODER_IP_ADDRESS_ALIGNMENT;
2702 out_be32(&ugeth->p_rx_glbl_pram->remoder, remoder);
2703
2704 /* Note that this function must be called */
2705 /* ONLY AFTER p_tx_fw_statistics_pram */
2706 /* andp_UccGethRxFirmwareStatisticsPram are allocated ! */
2707 init_firmware_statistics_gathering_mode((ug_info->
2708 statisticsMode &
2709 UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_TX),
2710 (ug_info->statisticsMode &
2711 UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_RX),
2712 &ugeth->p_tx_glbl_pram->txrmonbaseptr,
2713 ugeth->tx_fw_statistics_pram_offset,
2714 &ugeth->p_rx_glbl_pram->rxrmonbaseptr,
2715 ugeth->rx_fw_statistics_pram_offset,
2716 &ugeth->p_tx_glbl_pram->temoder,
2717 &ugeth->p_rx_glbl_pram->remoder);
2718
2719 /* function code register */
2720 out_8(&ugeth->p_rx_glbl_pram->rstate, function_code);
2721
2722 /* initialize extended filtering */
2723 if (ug_info->rxExtendedFiltering) {
2724 if (!ug_info->extendedFilteringChainPointer) {
2725 if (netif_msg_ifup(ugeth))
2726 pr_err("Null Extended Filtering Chain Pointer\n");
2727 return -EINVAL;
2728 }
2729
2730 /* Allocate memory for extended filtering Mode Global
2731 Parameters */
2732 ugeth->exf_glbl_param_offset =
2733 qe_muram_alloc(sizeof(struct ucc_geth_exf_global_pram),
2734 UCC_GETH_RX_EXTENDED_FILTERING_GLOBAL_PARAMETERS_ALIGNMENT);
2735 if (IS_ERR_VALUE(ugeth->exf_glbl_param_offset)) {
2736 if (netif_msg_ifup(ugeth))
2737 pr_err("Can not allocate DPRAM memory for p_exf_glbl_param\n");
2738 return -ENOMEM;
2739 }
2740
2741 ugeth->p_exf_glbl_param =
2742 (struct ucc_geth_exf_global_pram __iomem *) qe_muram_addr(ugeth->
2743 exf_glbl_param_offset);
2744 out_be32(&ugeth->p_rx_glbl_pram->exfGlobalParam,
2745 ugeth->exf_glbl_param_offset);
2746 out_be32(&ugeth->p_exf_glbl_param->l2pcdptr,
2747 (u32) ug_info->extendedFilteringChainPointer);
2748
2749 } else { /* initialize 82xx style address filtering */
2750
2751 /* Init individual address recognition registers to disabled */
2752
2753 for (j = 0; j < NUM_OF_PADDRS; j++)
2754 ugeth_82xx_filtering_clear_addr_in_paddr(ugeth, (u8) j);
2755
2756 p_82xx_addr_filt =
2757 (struct ucc_geth_82xx_address_filtering_pram __iomem *) ugeth->
2758 p_rx_glbl_pram->addressfiltering;
2759
2760 ugeth_82xx_filtering_clear_all_addr_in_hash(ugeth,
2761 ENET_ADDR_TYPE_GROUP);
2762 ugeth_82xx_filtering_clear_all_addr_in_hash(ugeth,
2763 ENET_ADDR_TYPE_INDIVIDUAL);
2764 }
2765
2766 /*
2767 * Initialize UCC at QE level
2768 */
2769
2770 command = QE_INIT_TX_RX;
2771
2772 /* Allocate shadow InitEnet command parameter structure.
2773 * This is needed because after the InitEnet command is executed,
2774 * the structure in DPRAM is released, because DPRAM is a premium
2775 * resource.
2776 * This shadow structure keeps a copy of what was done so that the
2777 * allocated resources can be released when the channel is freed.
2778 */
2779 if (!(ugeth->p_init_enet_param_shadow =
2780 kzalloc(sizeof(struct ucc_geth_init_pram), GFP_KERNEL))) {
2781 if (netif_msg_ifup(ugeth))
2782 pr_err("Can not allocate memory for p_UccInitEnetParamShadows\n");
2783 return -ENOMEM;
2784 }
2785
2786 /* Fill shadow InitEnet command parameter structure */
2787
2788 ugeth->p_init_enet_param_shadow->resinit1 =
2789 ENET_INIT_PARAM_MAGIC_RES_INIT1;
2790 ugeth->p_init_enet_param_shadow->resinit2 =
2791 ENET_INIT_PARAM_MAGIC_RES_INIT2;
2792 ugeth->p_init_enet_param_shadow->resinit3 =
2793 ENET_INIT_PARAM_MAGIC_RES_INIT3;
2794 ugeth->p_init_enet_param_shadow->resinit4 =
2795 ENET_INIT_PARAM_MAGIC_RES_INIT4;
2796 ugeth->p_init_enet_param_shadow->resinit5 =
2797 ENET_INIT_PARAM_MAGIC_RES_INIT5;
2798 ugeth->p_init_enet_param_shadow->rgftgfrxglobal |=
2799 ((u32) ug_info->numThreadsRx) << ENET_INIT_PARAM_RGF_SHIFT;
2800 ugeth->p_init_enet_param_shadow->rgftgfrxglobal |=
2801 ((u32) ug_info->numThreadsTx) << ENET_INIT_PARAM_TGF_SHIFT;
2802
2803 ugeth->p_init_enet_param_shadow->rgftgfrxglobal |=
2804 rx_glbl_pram_offset | ug_info->riscRx;
2805 if ((ug_info->largestexternallookupkeysize !=
2806 QE_FLTR_LARGEST_EXTERNAL_TABLE_LOOKUP_KEY_SIZE_NONE) &&
2807 (ug_info->largestexternallookupkeysize !=
2808 QE_FLTR_LARGEST_EXTERNAL_TABLE_LOOKUP_KEY_SIZE_8_BYTES) &&
2809 (ug_info->largestexternallookupkeysize !=
2810 QE_FLTR_LARGEST_EXTERNAL_TABLE_LOOKUP_KEY_SIZE_16_BYTES)) {
2811 if (netif_msg_ifup(ugeth))
2812 pr_err("Invalid largest External Lookup Key Size\n");
2813 return -EINVAL;
2814 }
2815 ugeth->p_init_enet_param_shadow->largestexternallookupkeysize =
2816 ug_info->largestexternallookupkeysize;
2817 size = sizeof(struct ucc_geth_thread_rx_pram);
2818 if (ug_info->rxExtendedFiltering) {
2819 size += THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING;
2820 if (ug_info->largestexternallookupkeysize ==
2821 QE_FLTR_LARGEST_EXTERNAL_TABLE_LOOKUP_KEY_SIZE_8_BYTES)
2822 size +=
2823 THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING_8;
2824 if (ug_info->largestexternallookupkeysize ==
2825 QE_FLTR_LARGEST_EXTERNAL_TABLE_LOOKUP_KEY_SIZE_16_BYTES)
2826 size +=
2827 THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING_16;
2828 }
2829
2830 if ((ret_val = fill_init_enet_entries(ugeth, &(ugeth->
2831 p_init_enet_param_shadow->rxthread[0]),
2832 (u8) (numThreadsRxNumerical + 1)
2833 /* Rx needs one extra for terminator */
2834 , size, UCC_GETH_THREAD_RX_PRAM_ALIGNMENT,
2835 ug_info->riscRx, 1)) != 0) {
2836 if (netif_msg_ifup(ugeth))
2837 pr_err("Can not fill p_init_enet_param_shadow\n");
2838 return ret_val;
2839 }
2840
2841 ugeth->p_init_enet_param_shadow->txglobal =
2842 tx_glbl_pram_offset | ug_info->riscTx;
2843 if ((ret_val =
2844 fill_init_enet_entries(ugeth,
2845 &(ugeth->p_init_enet_param_shadow->
2846 txthread[0]), numThreadsTxNumerical,
2847 sizeof(struct ucc_geth_thread_tx_pram),
2848 UCC_GETH_THREAD_TX_PRAM_ALIGNMENT,
2849 ug_info->riscTx, 0)) != 0) {
2850 if (netif_msg_ifup(ugeth))
2851 pr_err("Can not fill p_init_enet_param_shadow\n");
2852 return ret_val;
2853 }
2854
2855 /* Load Rx bds with buffers */
2856 for (i = 0; i < ucc_geth_rx_queues(ug_info); i++) {
2857 if ((ret_val = rx_bd_buffer_set(ugeth, (u8) i)) != 0) {
2858 if (netif_msg_ifup(ugeth))
2859 pr_err("Can not fill Rx bds with buffers\n");
2860 return ret_val;
2861 }
2862 }
2863
2864 /* Allocate InitEnet command parameter structure */
2865 init_enet_pram_offset = qe_muram_alloc(sizeof(struct ucc_geth_init_pram), 4);
2866 if (IS_ERR_VALUE(init_enet_pram_offset)) {
2867 if (netif_msg_ifup(ugeth))
2868 pr_err("Can not allocate DPRAM memory for p_init_enet_pram\n");
2869 return -ENOMEM;
2870 }
2871 p_init_enet_pram =
2872 (struct ucc_geth_init_pram __iomem *) qe_muram_addr(init_enet_pram_offset);
2873
2874 /* Copy shadow InitEnet command parameter structure into PRAM */
2875 out_8(&p_init_enet_pram->resinit1,
2876 ugeth->p_init_enet_param_shadow->resinit1);
2877 out_8(&p_init_enet_pram->resinit2,
2878 ugeth->p_init_enet_param_shadow->resinit2);
2879 out_8(&p_init_enet_pram->resinit3,
2880 ugeth->p_init_enet_param_shadow->resinit3);
2881 out_8(&p_init_enet_pram->resinit4,
2882 ugeth->p_init_enet_param_shadow->resinit4);
2883 out_be16(&p_init_enet_pram->resinit5,
2884 ugeth->p_init_enet_param_shadow->resinit5);
2885 out_8(&p_init_enet_pram->largestexternallookupkeysize,
2886 ugeth->p_init_enet_param_shadow->largestexternallookupkeysize);
2887 out_be32(&p_init_enet_pram->rgftgfrxglobal,
2888 ugeth->p_init_enet_param_shadow->rgftgfrxglobal);
2889 for (i = 0; i < ENET_INIT_PARAM_MAX_ENTRIES_RX; i++)
2890 out_be32(&p_init_enet_pram->rxthread[i],
2891 ugeth->p_init_enet_param_shadow->rxthread[i]);
2892 out_be32(&p_init_enet_pram->txglobal,
2893 ugeth->p_init_enet_param_shadow->txglobal);
2894 for (i = 0; i < ENET_INIT_PARAM_MAX_ENTRIES_TX; i++)
2895 out_be32(&p_init_enet_pram->txthread[i],
2896 ugeth->p_init_enet_param_shadow->txthread[i]);
2897
2898 /* Issue QE command */
2899 cecr_subblock =
2900 ucc_fast_get_qe_cr_subblock(ugeth->ug_info->uf_info.ucc_num);
2901 qe_issue_cmd(command, cecr_subblock, QE_CR_PROTOCOL_ETHERNET,
2902 init_enet_pram_offset);
2903
2904 /* Free InitEnet command parameter */
2905 qe_muram_free(init_enet_pram_offset);
2906
2907 return 0;
2908}
2909
2910/* This is called by the kernel when a frame is ready for transmission. */
2911/* It is pointed to by the dev->hard_start_xmit function pointer */
2912static netdev_tx_t
2913ucc_geth_start_xmit(struct sk_buff *skb, struct net_device *dev)
2914{
2915 struct ucc_geth_private *ugeth = netdev_priv(dev);
2916#ifdef CONFIG_UGETH_TX_ON_DEMAND
2917 struct ucc_fast_private *uccf;
2918#endif
2919 u8 __iomem *bd; /* BD pointer */
2920 u32 bd_status;
2921 u8 txQ = 0;
2922 unsigned long flags;
2923
2924 ugeth_vdbg("%s: IN", __func__);
2925
2926 netdev_sent_queue(dev, skb->len);
2927 spin_lock_irqsave(&ugeth->lock, flags);
2928
2929 dev->stats.tx_bytes += skb->len;
2930
2931 /* Start from the next BD that should be filled */
2932 bd = ugeth->txBd[txQ];
2933 bd_status = in_be32((u32 __iomem *)bd);
2934 /* Save the skb pointer so we can free it later */
2935 ugeth->tx_skbuff[txQ][ugeth->skb_curtx[txQ]] = skb;
2936
2937 /* Update the current skb pointer (wrapping if this was the last) */
2938 ugeth->skb_curtx[txQ] =
2939 (ugeth->skb_curtx[txQ] +
2940 1) & TX_RING_MOD_MASK(ugeth->ug_info->bdRingLenTx[txQ]);
2941
2942 /* set up the buffer descriptor */
2943 out_be32(&((struct qe_bd __iomem *)bd)->buf,
2944 dma_map_single(ugeth->dev, skb->data,
2945 skb->len, DMA_TO_DEVICE));
2946
2947 /* printk(KERN_DEBUG"skb->data is 0x%x\n",skb->data); */
2948
2949 bd_status = (bd_status & T_W) | T_R | T_I | T_L | skb->len;
2950
2951 /* set bd status and length */
2952 out_be32((u32 __iomem *)bd, bd_status);
2953
2954 /* Move to next BD in the ring */
2955 if (!(bd_status & T_W))
2956 bd += sizeof(struct qe_bd);
2957 else
2958 bd = ugeth->p_tx_bd_ring[txQ];
2959
2960 /* If the next BD still needs to be cleaned up, then the bds
2961 are full. We need to tell the kernel to stop sending us stuff. */
2962 if (bd == ugeth->confBd[txQ]) {
2963 if (!netif_queue_stopped(dev))
2964 netif_stop_queue(dev);
2965 }
2966
2967 ugeth->txBd[txQ] = bd;
2968
2969 skb_tx_timestamp(skb);
2970
2971 if (ugeth->p_scheduler) {
2972 ugeth->cpucount[txQ]++;
2973 /* Indicate to QE that there are more Tx bds ready for
2974 transmission */
2975 /* This is done by writing a running counter of the bd
2976 count to the scheduler PRAM. */
2977 out_be16(ugeth->p_cpucount[txQ], ugeth->cpucount[txQ]);
2978 }
2979
2980#ifdef CONFIG_UGETH_TX_ON_DEMAND
2981 uccf = ugeth->uccf;
2982 out_be16(uccf->p_utodr, UCC_FAST_TOD);
2983#endif
2984 spin_unlock_irqrestore(&ugeth->lock, flags);
2985
2986 return NETDEV_TX_OK;
2987}
2988
2989static int ucc_geth_rx(struct ucc_geth_private *ugeth, u8 rxQ, int rx_work_limit)
2990{
2991 struct sk_buff *skb;
2992 u8 __iomem *bd;
2993 u16 length, howmany = 0;
2994 u32 bd_status;
2995 u8 *bdBuffer;
2996 struct net_device *dev;
2997
2998 ugeth_vdbg("%s: IN", __func__);
2999
3000 dev = ugeth->ndev;
3001
3002 /* collect received buffers */
3003 bd = ugeth->rxBd[rxQ];
3004
3005 bd_status = in_be32((u32 __iomem *)bd);
3006
3007 /* while there are received buffers and BD is full (~R_E) */
3008 while (!((bd_status & (R_E)) || (--rx_work_limit < 0))) {
3009 bdBuffer = (u8 *) in_be32(&((struct qe_bd __iomem *)bd)->buf);
3010 length = (u16) ((bd_status & BD_LENGTH_MASK) - 4);
3011 skb = ugeth->rx_skbuff[rxQ][ugeth->skb_currx[rxQ]];
3012
3013 /* determine whether buffer is first, last, first and last
3014 (single buffer frame) or middle (not first and not last) */
3015 if (!skb ||
3016 (!(bd_status & (R_F | R_L))) ||
3017 (bd_status & R_ERRORS_FATAL)) {
3018 if (netif_msg_rx_err(ugeth))
3019 pr_err("%d: ERROR!!! skb - 0x%08x\n",
3020 __LINE__, (u32)skb);
3021 dev_kfree_skb(skb);
3022
3023 ugeth->rx_skbuff[rxQ][ugeth->skb_currx[rxQ]] = NULL;
3024 dev->stats.rx_dropped++;
3025 } else {
3026 dev->stats.rx_packets++;
3027 howmany++;
3028
3029 /* Prep the skb for the packet */
3030 skb_put(skb, length);
3031
3032 /* Tell the skb what kind of packet this is */
3033 skb->protocol = eth_type_trans(skb, ugeth->ndev);
3034
3035 dev->stats.rx_bytes += length;
3036 /* Send the packet up the stack */
3037 netif_receive_skb(skb);
3038 }
3039
3040 skb = get_new_skb(ugeth, bd);
3041 if (!skb) {
3042 if (netif_msg_rx_err(ugeth))
3043 pr_warn("No Rx Data Buffer\n");
3044 dev->stats.rx_dropped++;
3045 break;
3046 }
3047
3048 ugeth->rx_skbuff[rxQ][ugeth->skb_currx[rxQ]] = skb;
3049
3050 /* update to point at the next skb */
3051 ugeth->skb_currx[rxQ] =
3052 (ugeth->skb_currx[rxQ] +
3053 1) & RX_RING_MOD_MASK(ugeth->ug_info->bdRingLenRx[rxQ]);
3054
3055 if (bd_status & R_W)
3056 bd = ugeth->p_rx_bd_ring[rxQ];
3057 else
3058 bd += sizeof(struct qe_bd);
3059
3060 bd_status = in_be32((u32 __iomem *)bd);
3061 }
3062
3063 ugeth->rxBd[rxQ] = bd;
3064 return howmany;
3065}
3066
3067static int ucc_geth_tx(struct net_device *dev, u8 txQ)
3068{
3069 /* Start from the next BD that should be filled */
3070 struct ucc_geth_private *ugeth = netdev_priv(dev);
3071 unsigned int bytes_sent = 0;
3072 int howmany = 0;
3073 u8 __iomem *bd; /* BD pointer */
3074 u32 bd_status;
3075
3076 bd = ugeth->confBd[txQ];
3077 bd_status = in_be32((u32 __iomem *)bd);
3078
3079 /* Normal processing. */
3080 while ((bd_status & T_R) == 0) {
3081 struct sk_buff *skb;
3082
3083 /* BD contains already transmitted buffer. */
3084 /* Handle the transmitted buffer and release */
3085 /* the BD to be used with the current frame */
3086
3087 skb = ugeth->tx_skbuff[txQ][ugeth->skb_dirtytx[txQ]];
3088 if (!skb)
3089 break;
3090 howmany++;
3091 bytes_sent += skb->len;
3092 dev->stats.tx_packets++;
3093
3094 dev_consume_skb_any(skb);
3095
3096 ugeth->tx_skbuff[txQ][ugeth->skb_dirtytx[txQ]] = NULL;
3097 ugeth->skb_dirtytx[txQ] =
3098 (ugeth->skb_dirtytx[txQ] +
3099 1) & TX_RING_MOD_MASK(ugeth->ug_info->bdRingLenTx[txQ]);
3100
3101 /* We freed a buffer, so now we can restart transmission */
3102 if (netif_queue_stopped(dev))
3103 netif_wake_queue(dev);
3104
3105 /* Advance the confirmation BD pointer */
3106 if (!(bd_status & T_W))
3107 bd += sizeof(struct qe_bd);
3108 else
3109 bd = ugeth->p_tx_bd_ring[txQ];
3110 bd_status = in_be32((u32 __iomem *)bd);
3111 }
3112 ugeth->confBd[txQ] = bd;
3113 netdev_completed_queue(dev, howmany, bytes_sent);
3114 return 0;
3115}
3116
3117static int ucc_geth_poll(struct napi_struct *napi, int budget)
3118{
3119 struct ucc_geth_private *ugeth = container_of(napi, struct ucc_geth_private, napi);
3120 struct ucc_geth_info *ug_info;
3121 int howmany, i;
3122
3123 ug_info = ugeth->ug_info;
3124
3125 /* Tx event processing */
3126 spin_lock(&ugeth->lock);
3127 for (i = 0; i < ucc_geth_tx_queues(ug_info); i++)
3128 ucc_geth_tx(ugeth->ndev, i);
3129 spin_unlock(&ugeth->lock);
3130
3131 howmany = 0;
3132 for (i = 0; i < ucc_geth_rx_queues(ug_info); i++)
3133 howmany += ucc_geth_rx(ugeth, i, budget - howmany);
3134
3135 if (howmany < budget) {
3136 napi_complete_done(napi, howmany);
3137 setbits32(ugeth->uccf->p_uccm, UCCE_RX_EVENTS | UCCE_TX_EVENTS);
3138 }
3139
3140 return howmany;
3141}
3142
3143static irqreturn_t ucc_geth_irq_handler(int irq, void *info)
3144{
3145 struct net_device *dev = info;
3146 struct ucc_geth_private *ugeth = netdev_priv(dev);
3147 struct ucc_fast_private *uccf;
3148 struct ucc_geth_info *ug_info;
3149 register u32 ucce;
3150 register u32 uccm;
3151
3152 ugeth_vdbg("%s: IN", __func__);
3153
3154 uccf = ugeth->uccf;
3155 ug_info = ugeth->ug_info;
3156
3157 /* read and clear events */
3158 ucce = (u32) in_be32(uccf->p_ucce);
3159 uccm = (u32) in_be32(uccf->p_uccm);
3160 ucce &= uccm;
3161 out_be32(uccf->p_ucce, ucce);
3162
3163 /* check for receive events that require processing */
3164 if (ucce & (UCCE_RX_EVENTS | UCCE_TX_EVENTS)) {
3165 if (napi_schedule_prep(&ugeth->napi)) {
3166 uccm &= ~(UCCE_RX_EVENTS | UCCE_TX_EVENTS);
3167 out_be32(uccf->p_uccm, uccm);
3168 __napi_schedule(&ugeth->napi);
3169 }
3170 }
3171
3172 /* Errors and other events */
3173 if (ucce & UCCE_OTHER) {
3174 if (ucce & UCC_GETH_UCCE_BSY)
3175 dev->stats.rx_errors++;
3176 if (ucce & UCC_GETH_UCCE_TXE)
3177 dev->stats.tx_errors++;
3178 }
3179
3180 return IRQ_HANDLED;
3181}
3182
3183#ifdef CONFIG_NET_POLL_CONTROLLER
3184/*
3185 * Polling 'interrupt' - used by things like netconsole to send skbs
3186 * without having to re-enable interrupts. It's not called while
3187 * the interrupt routine is executing.
3188 */
3189static void ucc_netpoll(struct net_device *dev)
3190{
3191 struct ucc_geth_private *ugeth = netdev_priv(dev);
3192 int irq = ugeth->ug_info->uf_info.irq;
3193
3194 disable_irq(irq);
3195 ucc_geth_irq_handler(irq, dev);
3196 enable_irq(irq);
3197}
3198#endif /* CONFIG_NET_POLL_CONTROLLER */
3199
3200static int ucc_geth_set_mac_addr(struct net_device *dev, void *p)
3201{
3202 struct ucc_geth_private *ugeth = netdev_priv(dev);
3203 struct sockaddr *addr = p;
3204
3205 if (!is_valid_ether_addr(addr->sa_data))
3206 return -EADDRNOTAVAIL;
3207
3208 eth_hw_addr_set(dev, addr->sa_data);
3209
3210 /*
3211 * If device is not running, we will set mac addr register
3212 * when opening the device.
3213 */
3214 if (!netif_running(dev))
3215 return 0;
3216
3217 spin_lock_irq(&ugeth->lock);
3218 init_mac_station_addr_regs(dev->dev_addr[0],
3219 dev->dev_addr[1],
3220 dev->dev_addr[2],
3221 dev->dev_addr[3],
3222 dev->dev_addr[4],
3223 dev->dev_addr[5],
3224 &ugeth->ug_regs->macstnaddr1,
3225 &ugeth->ug_regs->macstnaddr2);
3226 spin_unlock_irq(&ugeth->lock);
3227
3228 return 0;
3229}
3230
3231static int ucc_geth_init_mac(struct ucc_geth_private *ugeth)
3232{
3233 struct net_device *dev = ugeth->ndev;
3234 int err;
3235
3236 err = ucc_struct_init(ugeth);
3237 if (err) {
3238 netif_err(ugeth, ifup, dev, "Cannot configure internal struct, aborting\n");
3239 goto err;
3240 }
3241
3242 err = ucc_geth_startup(ugeth);
3243 if (err) {
3244 netif_err(ugeth, ifup, dev, "Cannot configure net device, aborting\n");
3245 goto err;
3246 }
3247
3248 err = adjust_enet_interface(ugeth);
3249 if (err) {
3250 netif_err(ugeth, ifup, dev, "Cannot configure net device, aborting\n");
3251 goto err;
3252 }
3253
3254 /* Set MACSTNADDR1, MACSTNADDR2 */
3255 /* For more details see the hardware spec. */
3256 init_mac_station_addr_regs(dev->dev_addr[0],
3257 dev->dev_addr[1],
3258 dev->dev_addr[2],
3259 dev->dev_addr[3],
3260 dev->dev_addr[4],
3261 dev->dev_addr[5],
3262 &ugeth->ug_regs->macstnaddr1,
3263 &ugeth->ug_regs->macstnaddr2);
3264
3265 err = ugeth_enable(ugeth, COMM_DIR_RX_AND_TX);
3266 if (err) {
3267 netif_err(ugeth, ifup, dev, "Cannot enable net device, aborting\n");
3268 goto err;
3269 }
3270
3271 return 0;
3272err:
3273 ucc_geth_stop(ugeth);
3274 return err;
3275}
3276
3277/* Called when something needs to use the ethernet device */
3278/* Returns 0 for success. */
3279static int ucc_geth_open(struct net_device *dev)
3280{
3281 struct ucc_geth_private *ugeth = netdev_priv(dev);
3282 int err;
3283
3284 ugeth_vdbg("%s: IN", __func__);
3285
3286 /* Test station address */
3287 if (dev->dev_addr[0] & ENET_GROUP_ADDR) {
3288 netif_err(ugeth, ifup, dev,
3289 "Multicast address used for station address - is this what you wanted?\n");
3290 return -EINVAL;
3291 }
3292
3293 err = init_phy(dev);
3294 if (err) {
3295 netif_err(ugeth, ifup, dev, "Cannot initialize PHY, aborting\n");
3296 return err;
3297 }
3298
3299 err = ucc_geth_init_mac(ugeth);
3300 if (err) {
3301 netif_err(ugeth, ifup, dev, "Cannot initialize MAC, aborting\n");
3302 goto err;
3303 }
3304
3305 err = request_irq(ugeth->ug_info->uf_info.irq, ucc_geth_irq_handler,
3306 0, "UCC Geth", dev);
3307 if (err) {
3308 netif_err(ugeth, ifup, dev, "Cannot get IRQ for net device, aborting\n");
3309 goto err;
3310 }
3311
3312 phy_start(ugeth->phydev);
3313 napi_enable(&ugeth->napi);
3314 netdev_reset_queue(dev);
3315 netif_start_queue(dev);
3316
3317 device_set_wakeup_capable(&dev->dev,
3318 qe_alive_during_sleep() || ugeth->phydev->irq);
3319 device_set_wakeup_enable(&dev->dev, ugeth->wol_en);
3320
3321 return err;
3322
3323err:
3324 ucc_geth_stop(ugeth);
3325 return err;
3326}
3327
3328/* Stops the kernel queue, and halts the controller */
3329static int ucc_geth_close(struct net_device *dev)
3330{
3331 struct ucc_geth_private *ugeth = netdev_priv(dev);
3332
3333 ugeth_vdbg("%s: IN", __func__);
3334
3335 napi_disable(&ugeth->napi);
3336
3337 cancel_work_sync(&ugeth->timeout_work);
3338 ucc_geth_stop(ugeth);
3339 phy_disconnect(ugeth->phydev);
3340 ugeth->phydev = NULL;
3341
3342 free_irq(ugeth->ug_info->uf_info.irq, ugeth->ndev);
3343
3344 netif_stop_queue(dev);
3345 netdev_reset_queue(dev);
3346
3347 return 0;
3348}
3349
3350/* Reopen device. This will reset the MAC and PHY. */
3351static void ucc_geth_timeout_work(struct work_struct *work)
3352{
3353 struct ucc_geth_private *ugeth;
3354 struct net_device *dev;
3355
3356 ugeth = container_of(work, struct ucc_geth_private, timeout_work);
3357 dev = ugeth->ndev;
3358
3359 ugeth_vdbg("%s: IN", __func__);
3360
3361 dev->stats.tx_errors++;
3362
3363 ugeth_dump_regs(ugeth);
3364
3365 if (dev->flags & IFF_UP) {
3366 /*
3367 * Must reset MAC *and* PHY. This is done by reopening
3368 * the device.
3369 */
3370 netif_tx_stop_all_queues(dev);
3371 ucc_geth_stop(ugeth);
3372 ucc_geth_init_mac(ugeth);
3373 /* Must start PHY here */
3374 phy_start(ugeth->phydev);
3375 netif_tx_start_all_queues(dev);
3376 }
3377
3378 netif_tx_schedule_all(dev);
3379}
3380
3381/*
3382 * ucc_geth_timeout gets called when a packet has not been
3383 * transmitted after a set amount of time.
3384 */
3385static void ucc_geth_timeout(struct net_device *dev, unsigned int txqueue)
3386{
3387 struct ucc_geth_private *ugeth = netdev_priv(dev);
3388
3389 schedule_work(&ugeth->timeout_work);
3390}
3391
3392
3393#ifdef CONFIG_PM
3394
3395static int ucc_geth_suspend(struct platform_device *ofdev, pm_message_t state)
3396{
3397 struct net_device *ndev = platform_get_drvdata(ofdev);
3398 struct ucc_geth_private *ugeth = netdev_priv(ndev);
3399
3400 if (!netif_running(ndev))
3401 return 0;
3402
3403 netif_device_detach(ndev);
3404 napi_disable(&ugeth->napi);
3405
3406 /*
3407 * Disable the controller, otherwise we'll wakeup on any network
3408 * activity.
3409 */
3410 ugeth_disable(ugeth, COMM_DIR_RX_AND_TX);
3411
3412 if (ugeth->wol_en & WAKE_MAGIC) {
3413 setbits32(ugeth->uccf->p_uccm, UCC_GETH_UCCE_MPD);
3414 setbits32(&ugeth->ug_regs->maccfg2, MACCFG2_MPE);
3415 ucc_fast_enable(ugeth->uccf, COMM_DIR_RX_AND_TX);
3416 } else if (!(ugeth->wol_en & WAKE_PHY)) {
3417 phy_stop(ugeth->phydev);
3418 }
3419
3420 return 0;
3421}
3422
3423static int ucc_geth_resume(struct platform_device *ofdev)
3424{
3425 struct net_device *ndev = platform_get_drvdata(ofdev);
3426 struct ucc_geth_private *ugeth = netdev_priv(ndev);
3427 int err;
3428
3429 if (!netif_running(ndev))
3430 return 0;
3431
3432 if (qe_alive_during_sleep()) {
3433 if (ugeth->wol_en & WAKE_MAGIC) {
3434 ucc_fast_disable(ugeth->uccf, COMM_DIR_RX_AND_TX);
3435 clrbits32(&ugeth->ug_regs->maccfg2, MACCFG2_MPE);
3436 clrbits32(ugeth->uccf->p_uccm, UCC_GETH_UCCE_MPD);
3437 }
3438 ugeth_enable(ugeth, COMM_DIR_RX_AND_TX);
3439 } else {
3440 /*
3441 * Full reinitialization is required if QE shuts down
3442 * during sleep.
3443 */
3444 ucc_geth_memclean(ugeth);
3445
3446 err = ucc_geth_init_mac(ugeth);
3447 if (err) {
3448 netdev_err(ndev, "Cannot initialize MAC, aborting\n");
3449 return err;
3450 }
3451 }
3452
3453 ugeth->oldlink = 0;
3454 ugeth->oldspeed = 0;
3455 ugeth->oldduplex = -1;
3456
3457 phy_stop(ugeth->phydev);
3458 phy_start(ugeth->phydev);
3459
3460 napi_enable(&ugeth->napi);
3461 netif_device_attach(ndev);
3462
3463 return 0;
3464}
3465
3466#else
3467#define ucc_geth_suspend NULL
3468#define ucc_geth_resume NULL
3469#endif
3470
3471static phy_interface_t to_phy_interface(const char *phy_connection_type)
3472{
3473 if (strcasecmp(phy_connection_type, "mii") == 0)
3474 return PHY_INTERFACE_MODE_MII;
3475 if (strcasecmp(phy_connection_type, "gmii") == 0)
3476 return PHY_INTERFACE_MODE_GMII;
3477 if (strcasecmp(phy_connection_type, "tbi") == 0)
3478 return PHY_INTERFACE_MODE_TBI;
3479 if (strcasecmp(phy_connection_type, "rmii") == 0)
3480 return PHY_INTERFACE_MODE_RMII;
3481 if (strcasecmp(phy_connection_type, "rgmii") == 0)
3482 return PHY_INTERFACE_MODE_RGMII;
3483 if (strcasecmp(phy_connection_type, "rgmii-id") == 0)
3484 return PHY_INTERFACE_MODE_RGMII_ID;
3485 if (strcasecmp(phy_connection_type, "rgmii-txid") == 0)
3486 return PHY_INTERFACE_MODE_RGMII_TXID;
3487 if (strcasecmp(phy_connection_type, "rgmii-rxid") == 0)
3488 return PHY_INTERFACE_MODE_RGMII_RXID;
3489 if (strcasecmp(phy_connection_type, "rtbi") == 0)
3490 return PHY_INTERFACE_MODE_RTBI;
3491 if (strcasecmp(phy_connection_type, "sgmii") == 0)
3492 return PHY_INTERFACE_MODE_SGMII;
3493
3494 return PHY_INTERFACE_MODE_MII;
3495}
3496
3497static int ucc_geth_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
3498{
3499 struct ucc_geth_private *ugeth = netdev_priv(dev);
3500
3501 if (!netif_running(dev))
3502 return -EINVAL;
3503
3504 if (!ugeth->phydev)
3505 return -ENODEV;
3506
3507 return phy_mii_ioctl(ugeth->phydev, rq, cmd);
3508}
3509
3510static const struct net_device_ops ucc_geth_netdev_ops = {
3511 .ndo_open = ucc_geth_open,
3512 .ndo_stop = ucc_geth_close,
3513 .ndo_start_xmit = ucc_geth_start_xmit,
3514 .ndo_validate_addr = eth_validate_addr,
3515 .ndo_change_carrier = fixed_phy_change_carrier,
3516 .ndo_set_mac_address = ucc_geth_set_mac_addr,
3517 .ndo_set_rx_mode = ucc_geth_set_multi,
3518 .ndo_tx_timeout = ucc_geth_timeout,
3519 .ndo_eth_ioctl = ucc_geth_ioctl,
3520#ifdef CONFIG_NET_POLL_CONTROLLER
3521 .ndo_poll_controller = ucc_netpoll,
3522#endif
3523};
3524
3525static int ucc_geth_parse_clock(struct device_node *np, const char *which,
3526 enum qe_clock *out)
3527{
3528 const char *sprop;
3529 char buf[24];
3530
3531 snprintf(buf, sizeof(buf), "%s-clock-name", which);
3532 sprop = of_get_property(np, buf, NULL);
3533 if (sprop) {
3534 *out = qe_clock_source(sprop);
3535 } else {
3536 u32 val;
3537
3538 snprintf(buf, sizeof(buf), "%s-clock", which);
3539 if (of_property_read_u32(np, buf, &val)) {
3540 /* If both *-clock-name and *-clock are missing,
3541 * we want to tell people to use *-clock-name.
3542 */
3543 pr_err("missing %s-clock-name property\n", buf);
3544 return -EINVAL;
3545 }
3546 *out = val;
3547 }
3548 if (*out < QE_CLK_NONE || *out > QE_CLK24) {
3549 pr_err("invalid %s property\n", buf);
3550 return -EINVAL;
3551 }
3552 return 0;
3553}
3554
3555static int ucc_geth_probe(struct platform_device* ofdev)
3556{
3557 struct device *device = &ofdev->dev;
3558 struct device_node *np = ofdev->dev.of_node;
3559 struct net_device *dev = NULL;
3560 struct ucc_geth_private *ugeth = NULL;
3561 struct ucc_geth_info *ug_info;
3562 struct resource res;
3563 int err, ucc_num, max_speed = 0;
3564 const unsigned int *prop;
3565 phy_interface_t phy_interface;
3566 static const int enet_to_speed[] = {
3567 SPEED_10, SPEED_10, SPEED_10,
3568 SPEED_100, SPEED_100, SPEED_100,
3569 SPEED_1000, SPEED_1000, SPEED_1000, SPEED_1000,
3570 };
3571 static const phy_interface_t enet_to_phy_interface[] = {
3572 PHY_INTERFACE_MODE_MII, PHY_INTERFACE_MODE_RMII,
3573 PHY_INTERFACE_MODE_RGMII, PHY_INTERFACE_MODE_MII,
3574 PHY_INTERFACE_MODE_RMII, PHY_INTERFACE_MODE_RGMII,
3575 PHY_INTERFACE_MODE_GMII, PHY_INTERFACE_MODE_RGMII,
3576 PHY_INTERFACE_MODE_TBI, PHY_INTERFACE_MODE_RTBI,
3577 PHY_INTERFACE_MODE_SGMII,
3578 };
3579
3580 ugeth_vdbg("%s: IN", __func__);
3581
3582 prop = of_get_property(np, "cell-index", NULL);
3583 if (!prop) {
3584 prop = of_get_property(np, "device-id", NULL);
3585 if (!prop)
3586 return -ENODEV;
3587 }
3588
3589 ucc_num = *prop - 1;
3590 if ((ucc_num < 0) || (ucc_num > 7))
3591 return -ENODEV;
3592
3593 ug_info = kmemdup(&ugeth_primary_info, sizeof(*ug_info), GFP_KERNEL);
3594 if (ug_info == NULL)
3595 return -ENOMEM;
3596
3597 ug_info->uf_info.ucc_num = ucc_num;
3598
3599 err = ucc_geth_parse_clock(np, "rx", &ug_info->uf_info.rx_clock);
3600 if (err)
3601 goto err_free_info;
3602 err = ucc_geth_parse_clock(np, "tx", &ug_info->uf_info.tx_clock);
3603 if (err)
3604 goto err_free_info;
3605
3606 err = of_address_to_resource(np, 0, &res);
3607 if (err)
3608 goto err_free_info;
3609
3610 ug_info->uf_info.regs = res.start;
3611 ug_info->uf_info.irq = irq_of_parse_and_map(np, 0);
3612
3613 ug_info->phy_node = of_parse_phandle(np, "phy-handle", 0);
3614 if (!ug_info->phy_node && of_phy_is_fixed_link(np)) {
3615 /*
3616 * In the case of a fixed PHY, the DT node associated
3617 * to the PHY is the Ethernet MAC DT node.
3618 */
3619 err = of_phy_register_fixed_link(np);
3620 if (err)
3621 goto err_free_info;
3622 ug_info->phy_node = of_node_get(np);
3623 }
3624
3625 /* Find the TBI PHY node. If it's not there, we don't support SGMII */
3626 ug_info->tbi_node = of_parse_phandle(np, "tbi-handle", 0);
3627
3628 /* get the phy interface type, or default to MII */
3629 prop = of_get_property(np, "phy-connection-type", NULL);
3630 if (!prop) {
3631 /* handle interface property present in old trees */
3632 prop = of_get_property(ug_info->phy_node, "interface", NULL);
3633 if (prop != NULL) {
3634 phy_interface = enet_to_phy_interface[*prop];
3635 max_speed = enet_to_speed[*prop];
3636 } else
3637 phy_interface = PHY_INTERFACE_MODE_MII;
3638 } else {
3639 phy_interface = to_phy_interface((const char *)prop);
3640 }
3641
3642 /* get speed, or derive from PHY interface */
3643 if (max_speed == 0)
3644 switch (phy_interface) {
3645 case PHY_INTERFACE_MODE_GMII:
3646 case PHY_INTERFACE_MODE_RGMII:
3647 case PHY_INTERFACE_MODE_RGMII_ID:
3648 case PHY_INTERFACE_MODE_RGMII_RXID:
3649 case PHY_INTERFACE_MODE_RGMII_TXID:
3650 case PHY_INTERFACE_MODE_TBI:
3651 case PHY_INTERFACE_MODE_RTBI:
3652 case PHY_INTERFACE_MODE_SGMII:
3653 max_speed = SPEED_1000;
3654 break;
3655 default:
3656 max_speed = SPEED_100;
3657 break;
3658 }
3659
3660 if (max_speed == SPEED_1000) {
3661 unsigned int snums = qe_get_num_of_snums();
3662
3663 /* configure muram FIFOs for gigabit operation */
3664 ug_info->uf_info.urfs = UCC_GETH_URFS_GIGA_INIT;
3665 ug_info->uf_info.urfet = UCC_GETH_URFET_GIGA_INIT;
3666 ug_info->uf_info.urfset = UCC_GETH_URFSET_GIGA_INIT;
3667 ug_info->uf_info.utfs = UCC_GETH_UTFS_GIGA_INIT;
3668 ug_info->uf_info.utfet = UCC_GETH_UTFET_GIGA_INIT;
3669 ug_info->uf_info.utftt = UCC_GETH_UTFTT_GIGA_INIT;
3670 ug_info->numThreadsTx = UCC_GETH_NUM_OF_THREADS_4;
3671
3672 /* If QE's snum number is 46/76 which means we need to support
3673 * 4 UECs at 1000Base-T simultaneously, we need to allocate
3674 * more Threads to Rx.
3675 */
3676 if ((snums == 76) || (snums == 46))
3677 ug_info->numThreadsRx = UCC_GETH_NUM_OF_THREADS_6;
3678 else
3679 ug_info->numThreadsRx = UCC_GETH_NUM_OF_THREADS_4;
3680 }
3681
3682 if (netif_msg_probe(&debug))
3683 pr_info("UCC%1d at 0x%8llx (irq = %d)\n",
3684 ug_info->uf_info.ucc_num + 1,
3685 (u64)ug_info->uf_info.regs,
3686 ug_info->uf_info.irq);
3687
3688 /* Create an ethernet device instance */
3689 dev = alloc_etherdev(sizeof(*ugeth));
3690
3691 if (dev == NULL) {
3692 err = -ENOMEM;
3693 goto err_deregister_fixed_link;
3694 }
3695
3696 ugeth = netdev_priv(dev);
3697 spin_lock_init(&ugeth->lock);
3698
3699 /* Create CQs for hash tables */
3700 INIT_LIST_HEAD(&ugeth->group_hash_q);
3701 INIT_LIST_HEAD(&ugeth->ind_hash_q);
3702
3703 dev_set_drvdata(device, dev);
3704
3705 /* Set the dev->base_addr to the gfar reg region */
3706 dev->base_addr = (unsigned long)(ug_info->uf_info.regs);
3707
3708 SET_NETDEV_DEV(dev, device);
3709
3710 /* Fill in the dev structure */
3711 uec_set_ethtool_ops(dev);
3712 dev->netdev_ops = &ucc_geth_netdev_ops;
3713 dev->watchdog_timeo = TX_TIMEOUT;
3714 INIT_WORK(&ugeth->timeout_work, ucc_geth_timeout_work);
3715 netif_napi_add(dev, &ugeth->napi, ucc_geth_poll);
3716 dev->mtu = 1500;
3717 dev->max_mtu = 1518;
3718
3719 ugeth->msg_enable = netif_msg_init(debug.msg_enable, UGETH_MSG_DEFAULT);
3720 ugeth->phy_interface = phy_interface;
3721 ugeth->max_speed = max_speed;
3722
3723 /* Carrier starts down, phylib will bring it up */
3724 netif_carrier_off(dev);
3725
3726 err = register_netdev(dev);
3727 if (err) {
3728 if (netif_msg_probe(ugeth))
3729 pr_err("%s: Cannot register net device, aborting\n",
3730 dev->name);
3731 goto err_free_netdev;
3732 }
3733
3734 of_get_ethdev_address(np, dev);
3735
3736 ugeth->ug_info = ug_info;
3737 ugeth->dev = device;
3738 ugeth->ndev = dev;
3739 ugeth->node = np;
3740
3741 return 0;
3742
3743err_free_netdev:
3744 free_netdev(dev);
3745err_deregister_fixed_link:
3746 if (of_phy_is_fixed_link(np))
3747 of_phy_deregister_fixed_link(np);
3748 of_node_put(ug_info->tbi_node);
3749 of_node_put(ug_info->phy_node);
3750err_free_info:
3751 kfree(ug_info);
3752
3753 return err;
3754}
3755
3756static int ucc_geth_remove(struct platform_device* ofdev)
3757{
3758 struct net_device *dev = platform_get_drvdata(ofdev);
3759 struct ucc_geth_private *ugeth = netdev_priv(dev);
3760 struct device_node *np = ofdev->dev.of_node;
3761
3762 unregister_netdev(dev);
3763 ucc_geth_memclean(ugeth);
3764 if (of_phy_is_fixed_link(np))
3765 of_phy_deregister_fixed_link(np);
3766 of_node_put(ugeth->ug_info->tbi_node);
3767 of_node_put(ugeth->ug_info->phy_node);
3768 kfree(ugeth->ug_info);
3769 free_netdev(dev);
3770
3771 return 0;
3772}
3773
3774static const struct of_device_id ucc_geth_match[] = {
3775 {
3776 .type = "network",
3777 .compatible = "ucc_geth",
3778 },
3779 {},
3780};
3781
3782MODULE_DEVICE_TABLE(of, ucc_geth_match);
3783
3784static struct platform_driver ucc_geth_driver = {
3785 .driver = {
3786 .name = DRV_NAME,
3787 .of_match_table = ucc_geth_match,
3788 },
3789 .probe = ucc_geth_probe,
3790 .remove = ucc_geth_remove,
3791 .suspend = ucc_geth_suspend,
3792 .resume = ucc_geth_resume,
3793};
3794
3795static int __init ucc_geth_init(void)
3796{
3797 if (netif_msg_drv(&debug))
3798 pr_info(DRV_DESC "\n");
3799
3800 return platform_driver_register(&ucc_geth_driver);
3801}
3802
3803static void __exit ucc_geth_exit(void)
3804{
3805 platform_driver_unregister(&ucc_geth_driver);
3806}
3807
3808module_init(ucc_geth_init);
3809module_exit(ucc_geth_exit);
3810
3811MODULE_AUTHOR("Freescale Semiconductor, Inc");
3812MODULE_DESCRIPTION(DRV_DESC);
3813MODULE_LICENSE("GPL");