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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.h>
32#include <linux/of_address.h>
33#include <linux/of_irq.h>
34#include <linux/of_mdio.h>
35#include <linux/of_net.h>
36#include <linux/platform_device.h>
37
38#include <linux/uaccess.h>
39#include <asm/irq.h>
40#include <asm/io.h>
41#include <soc/fsl/qe/immap_qe.h>
42#include <soc/fsl/qe/qe.h>
43#include <soc/fsl/qe/ucc.h>
44#include <soc/fsl/qe/ucc_fast.h>
45#include <asm/machdep.h>
46
47#include "ucc_geth.h"
48
49#undef DEBUG
50
51#define ugeth_printk(level, format, arg...) \
52 printk(level format "\n", ## arg)
53
54#define ugeth_dbg(format, arg...) \
55 ugeth_printk(KERN_DEBUG , format , ## arg)
56
57#ifdef UGETH_VERBOSE_DEBUG
58#define ugeth_vdbg ugeth_dbg
59#else
60#define ugeth_vdbg(fmt, args...) do { } while (0)
61#endif /* UGETH_VERBOSE_DEBUG */
62#define UGETH_MSG_DEFAULT (NETIF_MSG_IFUP << 1 ) - 1
63
64
65static DEFINE_SPINLOCK(ugeth_lock);
66
67static struct {
68 u32 msg_enable;
69} debug = { -1 };
70
71module_param_named(debug, debug.msg_enable, int, 0);
72MODULE_PARM_DESC(debug, "Debug verbosity level (0=none, ..., 0xffff=all)");
73
74static int ucc_geth_thread_count(enum ucc_geth_num_of_threads idx)
75{
76 static const u8 count[] = {
77 [UCC_GETH_NUM_OF_THREADS_1] = 1,
78 [UCC_GETH_NUM_OF_THREADS_2] = 2,
79 [UCC_GETH_NUM_OF_THREADS_4] = 4,
80 [UCC_GETH_NUM_OF_THREADS_6] = 6,
81 [UCC_GETH_NUM_OF_THREADS_8] = 8,
82 };
83 if (idx >= ARRAY_SIZE(count))
84 return 0;
85 return count[idx];
86}
87
88static inline int ucc_geth_tx_queues(const struct ucc_geth_info *info)
89{
90 return 1;
91}
92
93static inline int ucc_geth_rx_queues(const struct ucc_geth_info *info)
94{
95 return 1;
96}
97
98static const struct ucc_geth_info ugeth_primary_info = {
99 .uf_info = {
100 .rtsm = UCC_FAST_SEND_IDLES_BETWEEN_FRAMES,
101 .max_rx_buf_length = 1536,
102 /* adjusted at startup if max-speed 1000 */
103 .urfs = UCC_GETH_URFS_INIT,
104 .urfet = UCC_GETH_URFET_INIT,
105 .urfset = UCC_GETH_URFSET_INIT,
106 .utfs = UCC_GETH_UTFS_INIT,
107 .utfet = UCC_GETH_UTFET_INIT,
108 .utftt = UCC_GETH_UTFTT_INIT,
109 .ufpt = 256,
110 .mode = UCC_FAST_PROTOCOL_MODE_ETHERNET,
111 .ttx_trx = UCC_FAST_GUMR_TRANSPARENT_TTX_TRX_NORMAL,
112 .tenc = UCC_FAST_TX_ENCODING_NRZ,
113 .renc = UCC_FAST_RX_ENCODING_NRZ,
114 .tcrc = UCC_FAST_16_BIT_CRC,
115 .synl = UCC_FAST_SYNC_LEN_NOT_USED,
116 },
117 .extendedFilteringChainPointer = ((uint32_t) NULL),
118 .typeorlen = 3072 /*1536 */ ,
119 .nonBackToBackIfgPart1 = 0x40,
120 .nonBackToBackIfgPart2 = 0x60,
121 .miminumInterFrameGapEnforcement = 0x50,
122 .backToBackInterFrameGap = 0x60,
123 .mblinterval = 128,
124 .nortsrbytetime = 5,
125 .fracsiz = 1,
126 .strictpriorityq = 0xff,
127 .altBebTruncation = 0xa,
128 .excessDefer = 1,
129 .maxRetransmission = 0xf,
130 .collisionWindow = 0x37,
131 .receiveFlowControl = 1,
132 .transmitFlowControl = 1,
133 .maxGroupAddrInHash = 4,
134 .maxIndAddrInHash = 4,
135 .prel = 7,
136 .maxFrameLength = 1518+16, /* Add extra bytes for VLANs etc. */
137 .minFrameLength = 64,
138 .maxD1Length = 1520+16, /* Add extra bytes for VLANs etc. */
139 .maxD2Length = 1520+16, /* Add extra bytes for VLANs etc. */
140 .vlantype = 0x8100,
141 .ecamptr = ((uint32_t) NULL),
142 .eventRegMask = UCCE_OTHER,
143 .pausePeriod = 0xf000,
144 .interruptcoalescingmaxvalue = {1, 1, 1, 1, 1, 1, 1, 1},
145 .bdRingLenTx = {
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 TX_BD_RING_LEN},
154
155 .bdRingLenRx = {
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 RX_BD_RING_LEN},
164
165 .numStationAddresses = UCC_GETH_NUM_OF_STATION_ADDRESSES_1,
166 .largestexternallookupkeysize =
167 QE_FLTR_LARGEST_EXTERNAL_TABLE_LOOKUP_KEY_SIZE_NONE,
168 .statisticsMode = UCC_GETH_STATISTICS_GATHERING_MODE_HARDWARE |
169 UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_TX |
170 UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_RX,
171 .vlanOperationTagged = UCC_GETH_VLAN_OPERATION_TAGGED_NOP,
172 .vlanOperationNonTagged = UCC_GETH_VLAN_OPERATION_NON_TAGGED_NOP,
173 .rxQoSMode = UCC_GETH_QOS_MODE_DEFAULT,
174 .aufc = UPSMR_AUTOMATIC_FLOW_CONTROL_MODE_NONE,
175 .padAndCrc = MACCFG2_PAD_AND_CRC_MODE_PAD_AND_CRC,
176 .numThreadsTx = UCC_GETH_NUM_OF_THREADS_1,
177 .numThreadsRx = UCC_GETH_NUM_OF_THREADS_1,
178 .riscTx = QE_RISC_ALLOCATION_RISC1_AND_RISC2,
179 .riscRx = QE_RISC_ALLOCATION_RISC1_AND_RISC2,
180};
181
182#ifdef DEBUG
183static void mem_disp(u8 *addr, int size)
184{
185 u8 *i;
186 int size16Aling = (size >> 4) << 4;
187 int size4Aling = (size >> 2) << 2;
188 int notAlign = 0;
189 if (size % 16)
190 notAlign = 1;
191
192 for (i = addr; (u32) i < (u32) addr + size16Aling; i += 16)
193 printk("0x%08x: %08x %08x %08x %08x\r\n",
194 (u32) i,
195 *((u32 *) (i)),
196 *((u32 *) (i + 4)),
197 *((u32 *) (i + 8)), *((u32 *) (i + 12)));
198 if (notAlign == 1)
199 printk("0x%08x: ", (u32) i);
200 for (; (u32) i < (u32) addr + size4Aling; i += 4)
201 printk("%08x ", *((u32 *) (i)));
202 for (; (u32) i < (u32) addr + size; i++)
203 printk("%02x", *((i)));
204 if (notAlign == 1)
205 printk("\r\n");
206}
207#endif /* DEBUG */
208
209static struct list_head *dequeue(struct list_head *lh)
210{
211 unsigned long flags;
212
213 spin_lock_irqsave(&ugeth_lock, flags);
214 if (!list_empty(lh)) {
215 struct list_head *node = lh->next;
216 list_del(node);
217 spin_unlock_irqrestore(&ugeth_lock, flags);
218 return node;
219 } else {
220 spin_unlock_irqrestore(&ugeth_lock, flags);
221 return NULL;
222 }
223}
224
225static struct sk_buff *get_new_skb(struct ucc_geth_private *ugeth,
226 u8 __iomem *bd)
227{
228 struct sk_buff *skb;
229
230 skb = netdev_alloc_skb(ugeth->ndev,
231 ugeth->ug_info->uf_info.max_rx_buf_length +
232 UCC_GETH_RX_DATA_BUF_ALIGNMENT);
233 if (!skb)
234 return NULL;
235
236 /* We need the data buffer to be aligned properly. We will reserve
237 * as many bytes as needed to align the data properly
238 */
239 skb_reserve(skb,
240 UCC_GETH_RX_DATA_BUF_ALIGNMENT -
241 (((unsigned)skb->data) & (UCC_GETH_RX_DATA_BUF_ALIGNMENT -
242 1)));
243
244 out_be32(&((struct qe_bd __iomem *)bd)->buf,
245 dma_map_single(ugeth->dev,
246 skb->data,
247 ugeth->ug_info->uf_info.max_rx_buf_length +
248 UCC_GETH_RX_DATA_BUF_ALIGNMENT,
249 DMA_FROM_DEVICE));
250
251 out_be32((u32 __iomem *)bd,
252 (R_E | R_I | (in_be32((u32 __iomem*)bd) & R_W)));
253
254 return skb;
255}
256
257static int rx_bd_buffer_set(struct ucc_geth_private *ugeth, u8 rxQ)
258{
259 u8 __iomem *bd;
260 u32 bd_status;
261 struct sk_buff *skb;
262 int i;
263
264 bd = ugeth->p_rx_bd_ring[rxQ];
265 i = 0;
266
267 do {
268 bd_status = in_be32((u32 __iomem *)bd);
269 skb = get_new_skb(ugeth, bd);
270
271 if (!skb) /* If can not allocate data buffer,
272 abort. Cleanup will be elsewhere */
273 return -ENOMEM;
274
275 ugeth->rx_skbuff[rxQ][i] = skb;
276
277 /* advance the BD pointer */
278 bd += sizeof(struct qe_bd);
279 i++;
280 } while (!(bd_status & R_W));
281
282 return 0;
283}
284
285static int fill_init_enet_entries(struct ucc_geth_private *ugeth,
286 u32 *p_start,
287 u8 num_entries,
288 u32 thread_size,
289 u32 thread_alignment,
290 unsigned int risc,
291 int skip_page_for_first_entry)
292{
293 u32 init_enet_offset;
294 u8 i;
295 int snum;
296
297 for (i = 0; i < num_entries; i++) {
298 if ((snum = qe_get_snum()) < 0) {
299 if (netif_msg_ifup(ugeth))
300 pr_err("Can not get SNUM\n");
301 return snum;
302 }
303 if ((i == 0) && skip_page_for_first_entry)
304 /* First entry of Rx does not have page */
305 init_enet_offset = 0;
306 else {
307 init_enet_offset =
308 qe_muram_alloc(thread_size, thread_alignment);
309 if (IS_ERR_VALUE(init_enet_offset)) {
310 if (netif_msg_ifup(ugeth))
311 pr_err("Can not allocate DPRAM memory\n");
312 qe_put_snum((u8) snum);
313 return -ENOMEM;
314 }
315 }
316 *(p_start++) =
317 ((u8) snum << ENET_INIT_PARAM_SNUM_SHIFT) | init_enet_offset
318 | risc;
319 }
320
321 return 0;
322}
323
324static int return_init_enet_entries(struct ucc_geth_private *ugeth,
325 u32 *p_start,
326 u8 num_entries,
327 unsigned int risc,
328 int skip_page_for_first_entry)
329{
330 u32 init_enet_offset;
331 u8 i;
332 int snum;
333
334 for (i = 0; i < num_entries; i++) {
335 u32 val = *p_start;
336
337 /* Check that this entry was actually valid --
338 needed in case failed in allocations */
339 if ((val & ENET_INIT_PARAM_RISC_MASK) == risc) {
340 snum =
341 (u32) (val & ENET_INIT_PARAM_SNUM_MASK) >>
342 ENET_INIT_PARAM_SNUM_SHIFT;
343 qe_put_snum((u8) snum);
344 if (!((i == 0) && skip_page_for_first_entry)) {
345 /* First entry of Rx does not have page */
346 init_enet_offset =
347 (val & ENET_INIT_PARAM_PTR_MASK);
348 qe_muram_free(init_enet_offset);
349 }
350 *p_start++ = 0;
351 }
352 }
353
354 return 0;
355}
356
357#ifdef DEBUG
358static int dump_init_enet_entries(struct ucc_geth_private *ugeth,
359 u32 __iomem *p_start,
360 u8 num_entries,
361 u32 thread_size,
362 unsigned int risc,
363 int skip_page_for_first_entry)
364{
365 u32 init_enet_offset;
366 u8 i;
367 int snum;
368
369 for (i = 0; i < num_entries; i++) {
370 u32 val = in_be32(p_start);
371
372 /* Check that this entry was actually valid --
373 needed in case failed in allocations */
374 if ((val & ENET_INIT_PARAM_RISC_MASK) == risc) {
375 snum =
376 (u32) (val & ENET_INIT_PARAM_SNUM_MASK) >>
377 ENET_INIT_PARAM_SNUM_SHIFT;
378 qe_put_snum((u8) snum);
379 if (!((i == 0) && skip_page_for_first_entry)) {
380 /* First entry of Rx does not have page */
381 init_enet_offset =
382 (in_be32(p_start) &
383 ENET_INIT_PARAM_PTR_MASK);
384 pr_info("Init enet entry %d:\n", i);
385 pr_info("Base address: 0x%08x\n",
386 (u32)qe_muram_addr(init_enet_offset));
387 mem_disp(qe_muram_addr(init_enet_offset),
388 thread_size);
389 }
390 p_start++;
391 }
392 }
393
394 return 0;
395}
396#endif
397
398static void put_enet_addr_container(struct enet_addr_container *enet_addr_cont)
399{
400 kfree(enet_addr_cont);
401}
402
403static void set_mac_addr(__be16 __iomem *reg, u8 *mac)
404{
405 out_be16(®[0], ((u16)mac[5] << 8) | mac[4]);
406 out_be16(®[1], ((u16)mac[3] << 8) | mac[2]);
407 out_be16(®[2], ((u16)mac[1] << 8) | mac[0]);
408}
409
410static int hw_clear_addr_in_paddr(struct ucc_geth_private *ugeth, u8 paddr_num)
411{
412 struct ucc_geth_82xx_address_filtering_pram __iomem *p_82xx_addr_filt;
413
414 if (paddr_num >= NUM_OF_PADDRS) {
415 pr_warn("%s: Invalid paddr_num: %u\n", __func__, paddr_num);
416 return -EINVAL;
417 }
418
419 p_82xx_addr_filt =
420 (struct ucc_geth_82xx_address_filtering_pram __iomem *) ugeth->p_rx_glbl_pram->
421 addressfiltering;
422
423 /* Writing address ff.ff.ff.ff.ff.ff disables address
424 recognition for this register */
425 out_be16(&p_82xx_addr_filt->paddr[paddr_num].h, 0xffff);
426 out_be16(&p_82xx_addr_filt->paddr[paddr_num].m, 0xffff);
427 out_be16(&p_82xx_addr_filt->paddr[paddr_num].l, 0xffff);
428
429 return 0;
430}
431
432static void hw_add_addr_in_hash(struct ucc_geth_private *ugeth,
433 u8 *p_enet_addr)
434{
435 struct ucc_geth_82xx_address_filtering_pram __iomem *p_82xx_addr_filt;
436 u32 cecr_subblock;
437
438 p_82xx_addr_filt =
439 (struct ucc_geth_82xx_address_filtering_pram __iomem *) ugeth->p_rx_glbl_pram->
440 addressfiltering;
441
442 cecr_subblock =
443 ucc_fast_get_qe_cr_subblock(ugeth->ug_info->uf_info.ucc_num);
444
445 /* Ethernet frames are defined in Little Endian mode,
446 therefore to insert */
447 /* the address to the hash (Big Endian mode), we reverse the bytes.*/
448
449 set_mac_addr(&p_82xx_addr_filt->taddr.h, p_enet_addr);
450
451 qe_issue_cmd(QE_SET_GROUP_ADDRESS, cecr_subblock,
452 QE_CR_PROTOCOL_ETHERNET, 0);
453}
454
455#ifdef DEBUG
456static void get_statistics(struct ucc_geth_private *ugeth,
457 struct ucc_geth_tx_firmware_statistics *
458 tx_firmware_statistics,
459 struct ucc_geth_rx_firmware_statistics *
460 rx_firmware_statistics,
461 struct ucc_geth_hardware_statistics *hardware_statistics)
462{
463 struct ucc_fast __iomem *uf_regs;
464 struct ucc_geth __iomem *ug_regs;
465 struct ucc_geth_tx_firmware_statistics_pram *p_tx_fw_statistics_pram;
466 struct ucc_geth_rx_firmware_statistics_pram *p_rx_fw_statistics_pram;
467
468 ug_regs = ugeth->ug_regs;
469 uf_regs = (struct ucc_fast __iomem *) ug_regs;
470 p_tx_fw_statistics_pram = ugeth->p_tx_fw_statistics_pram;
471 p_rx_fw_statistics_pram = ugeth->p_rx_fw_statistics_pram;
472
473 /* Tx firmware only if user handed pointer and driver actually
474 gathers Tx firmware statistics */
475 if (tx_firmware_statistics && p_tx_fw_statistics_pram) {
476 tx_firmware_statistics->sicoltx =
477 in_be32(&p_tx_fw_statistics_pram->sicoltx);
478 tx_firmware_statistics->mulcoltx =
479 in_be32(&p_tx_fw_statistics_pram->mulcoltx);
480 tx_firmware_statistics->latecoltxfr =
481 in_be32(&p_tx_fw_statistics_pram->latecoltxfr);
482 tx_firmware_statistics->frabortduecol =
483 in_be32(&p_tx_fw_statistics_pram->frabortduecol);
484 tx_firmware_statistics->frlostinmactxer =
485 in_be32(&p_tx_fw_statistics_pram->frlostinmactxer);
486 tx_firmware_statistics->carriersenseertx =
487 in_be32(&p_tx_fw_statistics_pram->carriersenseertx);
488 tx_firmware_statistics->frtxok =
489 in_be32(&p_tx_fw_statistics_pram->frtxok);
490 tx_firmware_statistics->txfrexcessivedefer =
491 in_be32(&p_tx_fw_statistics_pram->txfrexcessivedefer);
492 tx_firmware_statistics->txpkts256 =
493 in_be32(&p_tx_fw_statistics_pram->txpkts256);
494 tx_firmware_statistics->txpkts512 =
495 in_be32(&p_tx_fw_statistics_pram->txpkts512);
496 tx_firmware_statistics->txpkts1024 =
497 in_be32(&p_tx_fw_statistics_pram->txpkts1024);
498 tx_firmware_statistics->txpktsjumbo =
499 in_be32(&p_tx_fw_statistics_pram->txpktsjumbo);
500 }
501
502 /* Rx firmware only if user handed pointer and driver actually
503 * gathers Rx firmware statistics */
504 if (rx_firmware_statistics && p_rx_fw_statistics_pram) {
505 int i;
506 rx_firmware_statistics->frrxfcser =
507 in_be32(&p_rx_fw_statistics_pram->frrxfcser);
508 rx_firmware_statistics->fraligner =
509 in_be32(&p_rx_fw_statistics_pram->fraligner);
510 rx_firmware_statistics->inrangelenrxer =
511 in_be32(&p_rx_fw_statistics_pram->inrangelenrxer);
512 rx_firmware_statistics->outrangelenrxer =
513 in_be32(&p_rx_fw_statistics_pram->outrangelenrxer);
514 rx_firmware_statistics->frtoolong =
515 in_be32(&p_rx_fw_statistics_pram->frtoolong);
516 rx_firmware_statistics->runt =
517 in_be32(&p_rx_fw_statistics_pram->runt);
518 rx_firmware_statistics->verylongevent =
519 in_be32(&p_rx_fw_statistics_pram->verylongevent);
520 rx_firmware_statistics->symbolerror =
521 in_be32(&p_rx_fw_statistics_pram->symbolerror);
522 rx_firmware_statistics->dropbsy =
523 in_be32(&p_rx_fw_statistics_pram->dropbsy);
524 for (i = 0; i < 0x8; i++)
525 rx_firmware_statistics->res0[i] =
526 p_rx_fw_statistics_pram->res0[i];
527 rx_firmware_statistics->mismatchdrop =
528 in_be32(&p_rx_fw_statistics_pram->mismatchdrop);
529 rx_firmware_statistics->underpkts =
530 in_be32(&p_rx_fw_statistics_pram->underpkts);
531 rx_firmware_statistics->pkts256 =
532 in_be32(&p_rx_fw_statistics_pram->pkts256);
533 rx_firmware_statistics->pkts512 =
534 in_be32(&p_rx_fw_statistics_pram->pkts512);
535 rx_firmware_statistics->pkts1024 =
536 in_be32(&p_rx_fw_statistics_pram->pkts1024);
537 rx_firmware_statistics->pktsjumbo =
538 in_be32(&p_rx_fw_statistics_pram->pktsjumbo);
539 rx_firmware_statistics->frlossinmacer =
540 in_be32(&p_rx_fw_statistics_pram->frlossinmacer);
541 rx_firmware_statistics->pausefr =
542 in_be32(&p_rx_fw_statistics_pram->pausefr);
543 for (i = 0; i < 0x4; i++)
544 rx_firmware_statistics->res1[i] =
545 p_rx_fw_statistics_pram->res1[i];
546 rx_firmware_statistics->removevlan =
547 in_be32(&p_rx_fw_statistics_pram->removevlan);
548 rx_firmware_statistics->replacevlan =
549 in_be32(&p_rx_fw_statistics_pram->replacevlan);
550 rx_firmware_statistics->insertvlan =
551 in_be32(&p_rx_fw_statistics_pram->insertvlan);
552 }
553
554 /* Hardware only if user handed pointer and driver actually
555 gathers hardware statistics */
556 if (hardware_statistics &&
557 (in_be32(&uf_regs->upsmr) & UCC_GETH_UPSMR_HSE)) {
558 hardware_statistics->tx64 = in_be32(&ug_regs->tx64);
559 hardware_statistics->tx127 = in_be32(&ug_regs->tx127);
560 hardware_statistics->tx255 = in_be32(&ug_regs->tx255);
561 hardware_statistics->rx64 = in_be32(&ug_regs->rx64);
562 hardware_statistics->rx127 = in_be32(&ug_regs->rx127);
563 hardware_statistics->rx255 = in_be32(&ug_regs->rx255);
564 hardware_statistics->txok = in_be32(&ug_regs->txok);
565 hardware_statistics->txcf = in_be16(&ug_regs->txcf);
566 hardware_statistics->tmca = in_be32(&ug_regs->tmca);
567 hardware_statistics->tbca = in_be32(&ug_regs->tbca);
568 hardware_statistics->rxfok = in_be32(&ug_regs->rxfok);
569 hardware_statistics->rxbok = in_be32(&ug_regs->rxbok);
570 hardware_statistics->rbyt = in_be32(&ug_regs->rbyt);
571 hardware_statistics->rmca = in_be32(&ug_regs->rmca);
572 hardware_statistics->rbca = in_be32(&ug_regs->rbca);
573 }
574}
575
576static void dump_bds(struct ucc_geth_private *ugeth)
577{
578 int i;
579 int length;
580
581 for (i = 0; i < ucc_geth_tx_queues(ugeth->ug_info); i++) {
582 if (ugeth->p_tx_bd_ring[i]) {
583 length =
584 (ugeth->ug_info->bdRingLenTx[i] *
585 sizeof(struct qe_bd));
586 pr_info("TX BDs[%d]\n", i);
587 mem_disp(ugeth->p_tx_bd_ring[i], length);
588 }
589 }
590 for (i = 0; i < ucc_geth_rx_queues(ugeth->ug_info); i++) {
591 if (ugeth->p_rx_bd_ring[i]) {
592 length =
593 (ugeth->ug_info->bdRingLenRx[i] *
594 sizeof(struct qe_bd));
595 pr_info("RX BDs[%d]\n", i);
596 mem_disp(ugeth->p_rx_bd_ring[i], length);
597 }
598 }
599}
600
601static void dump_regs(struct ucc_geth_private *ugeth)
602{
603 int i;
604
605 pr_info("UCC%d Geth registers:\n", ugeth->ug_info->uf_info.ucc_num + 1);
606 pr_info("Base address: 0x%08x\n", (u32)ugeth->ug_regs);
607
608 pr_info("maccfg1 : addr - 0x%08x, val - 0x%08x\n",
609 (u32)&ugeth->ug_regs->maccfg1,
610 in_be32(&ugeth->ug_regs->maccfg1));
611 pr_info("maccfg2 : addr - 0x%08x, val - 0x%08x\n",
612 (u32)&ugeth->ug_regs->maccfg2,
613 in_be32(&ugeth->ug_regs->maccfg2));
614 pr_info("ipgifg : addr - 0x%08x, val - 0x%08x\n",
615 (u32)&ugeth->ug_regs->ipgifg,
616 in_be32(&ugeth->ug_regs->ipgifg));
617 pr_info("hafdup : addr - 0x%08x, val - 0x%08x\n",
618 (u32)&ugeth->ug_regs->hafdup,
619 in_be32(&ugeth->ug_regs->hafdup));
620 pr_info("ifctl : addr - 0x%08x, val - 0x%08x\n",
621 (u32)&ugeth->ug_regs->ifctl,
622 in_be32(&ugeth->ug_regs->ifctl));
623 pr_info("ifstat : addr - 0x%08x, val - 0x%08x\n",
624 (u32)&ugeth->ug_regs->ifstat,
625 in_be32(&ugeth->ug_regs->ifstat));
626 pr_info("macstnaddr1: addr - 0x%08x, val - 0x%08x\n",
627 (u32)&ugeth->ug_regs->macstnaddr1,
628 in_be32(&ugeth->ug_regs->macstnaddr1));
629 pr_info("macstnaddr2: addr - 0x%08x, val - 0x%08x\n",
630 (u32)&ugeth->ug_regs->macstnaddr2,
631 in_be32(&ugeth->ug_regs->macstnaddr2));
632 pr_info("uempr : addr - 0x%08x, val - 0x%08x\n",
633 (u32)&ugeth->ug_regs->uempr,
634 in_be32(&ugeth->ug_regs->uempr));
635 pr_info("utbipar : addr - 0x%08x, val - 0x%08x\n",
636 (u32)&ugeth->ug_regs->utbipar,
637 in_be32(&ugeth->ug_regs->utbipar));
638 pr_info("uescr : addr - 0x%08x, val - 0x%04x\n",
639 (u32)&ugeth->ug_regs->uescr,
640 in_be16(&ugeth->ug_regs->uescr));
641 pr_info("tx64 : addr - 0x%08x, val - 0x%08x\n",
642 (u32)&ugeth->ug_regs->tx64,
643 in_be32(&ugeth->ug_regs->tx64));
644 pr_info("tx127 : addr - 0x%08x, val - 0x%08x\n",
645 (u32)&ugeth->ug_regs->tx127,
646 in_be32(&ugeth->ug_regs->tx127));
647 pr_info("tx255 : addr - 0x%08x, val - 0x%08x\n",
648 (u32)&ugeth->ug_regs->tx255,
649 in_be32(&ugeth->ug_regs->tx255));
650 pr_info("rx64 : addr - 0x%08x, val - 0x%08x\n",
651 (u32)&ugeth->ug_regs->rx64,
652 in_be32(&ugeth->ug_regs->rx64));
653 pr_info("rx127 : addr - 0x%08x, val - 0x%08x\n",
654 (u32)&ugeth->ug_regs->rx127,
655 in_be32(&ugeth->ug_regs->rx127));
656 pr_info("rx255 : addr - 0x%08x, val - 0x%08x\n",
657 (u32)&ugeth->ug_regs->rx255,
658 in_be32(&ugeth->ug_regs->rx255));
659 pr_info("txok : addr - 0x%08x, val - 0x%08x\n",
660 (u32)&ugeth->ug_regs->txok,
661 in_be32(&ugeth->ug_regs->txok));
662 pr_info("txcf : addr - 0x%08x, val - 0x%04x\n",
663 (u32)&ugeth->ug_regs->txcf,
664 in_be16(&ugeth->ug_regs->txcf));
665 pr_info("tmca : addr - 0x%08x, val - 0x%08x\n",
666 (u32)&ugeth->ug_regs->tmca,
667 in_be32(&ugeth->ug_regs->tmca));
668 pr_info("tbca : addr - 0x%08x, val - 0x%08x\n",
669 (u32)&ugeth->ug_regs->tbca,
670 in_be32(&ugeth->ug_regs->tbca));
671 pr_info("rxfok : addr - 0x%08x, val - 0x%08x\n",
672 (u32)&ugeth->ug_regs->rxfok,
673 in_be32(&ugeth->ug_regs->rxfok));
674 pr_info("rxbok : addr - 0x%08x, val - 0x%08x\n",
675 (u32)&ugeth->ug_regs->rxbok,
676 in_be32(&ugeth->ug_regs->rxbok));
677 pr_info("rbyt : addr - 0x%08x, val - 0x%08x\n",
678 (u32)&ugeth->ug_regs->rbyt,
679 in_be32(&ugeth->ug_regs->rbyt));
680 pr_info("rmca : addr - 0x%08x, val - 0x%08x\n",
681 (u32)&ugeth->ug_regs->rmca,
682 in_be32(&ugeth->ug_regs->rmca));
683 pr_info("rbca : addr - 0x%08x, val - 0x%08x\n",
684 (u32)&ugeth->ug_regs->rbca,
685 in_be32(&ugeth->ug_regs->rbca));
686 pr_info("scar : addr - 0x%08x, val - 0x%08x\n",
687 (u32)&ugeth->ug_regs->scar,
688 in_be32(&ugeth->ug_regs->scar));
689 pr_info("scam : addr - 0x%08x, val - 0x%08x\n",
690 (u32)&ugeth->ug_regs->scam,
691 in_be32(&ugeth->ug_regs->scam));
692
693 if (ugeth->p_thread_data_tx) {
694 int count = ucc_geth_thread_count(ugeth->ug_info->numThreadsTx);
695
696 pr_info("Thread data TXs:\n");
697 pr_info("Base address: 0x%08x\n",
698 (u32)ugeth->p_thread_data_tx);
699 for (i = 0; i < count; i++) {
700 pr_info("Thread data TX[%d]:\n", i);
701 pr_info("Base address: 0x%08x\n",
702 (u32)&ugeth->p_thread_data_tx[i]);
703 mem_disp((u8 *) & ugeth->p_thread_data_tx[i],
704 sizeof(struct ucc_geth_thread_data_tx));
705 }
706 }
707 if (ugeth->p_thread_data_rx) {
708 int count = ucc_geth_thread_count(ugeth->ug_info->numThreadsRx);
709
710 pr_info("Thread data RX:\n");
711 pr_info("Base address: 0x%08x\n",
712 (u32)ugeth->p_thread_data_rx);
713 for (i = 0; i < count; i++) {
714 pr_info("Thread data RX[%d]:\n", i);
715 pr_info("Base address: 0x%08x\n",
716 (u32)&ugeth->p_thread_data_rx[i]);
717 mem_disp((u8 *) & ugeth->p_thread_data_rx[i],
718 sizeof(struct ucc_geth_thread_data_rx));
719 }
720 }
721 if (ugeth->p_exf_glbl_param) {
722 pr_info("EXF global param:\n");
723 pr_info("Base address: 0x%08x\n",
724 (u32)ugeth->p_exf_glbl_param);
725 mem_disp((u8 *) ugeth->p_exf_glbl_param,
726 sizeof(*ugeth->p_exf_glbl_param));
727 }
728 if (ugeth->p_tx_glbl_pram) {
729 pr_info("TX global param:\n");
730 pr_info("Base address: 0x%08x\n", (u32)ugeth->p_tx_glbl_pram);
731 pr_info("temoder : addr - 0x%08x, val - 0x%04x\n",
732 (u32)&ugeth->p_tx_glbl_pram->temoder,
733 in_be16(&ugeth->p_tx_glbl_pram->temoder));
734 pr_info("sqptr : addr - 0x%08x, val - 0x%08x\n",
735 (u32)&ugeth->p_tx_glbl_pram->sqptr,
736 in_be32(&ugeth->p_tx_glbl_pram->sqptr));
737 pr_info("schedulerbasepointer: addr - 0x%08x, val - 0x%08x\n",
738 (u32)&ugeth->p_tx_glbl_pram->schedulerbasepointer,
739 in_be32(&ugeth->p_tx_glbl_pram->schedulerbasepointer));
740 pr_info("txrmonbaseptr: addr - 0x%08x, val - 0x%08x\n",
741 (u32)&ugeth->p_tx_glbl_pram->txrmonbaseptr,
742 in_be32(&ugeth->p_tx_glbl_pram->txrmonbaseptr));
743 pr_info("tstate : addr - 0x%08x, val - 0x%08x\n",
744 (u32)&ugeth->p_tx_glbl_pram->tstate,
745 in_be32(&ugeth->p_tx_glbl_pram->tstate));
746 pr_info("iphoffset[0] : addr - 0x%08x, val - 0x%02x\n",
747 (u32)&ugeth->p_tx_glbl_pram->iphoffset[0],
748 ugeth->p_tx_glbl_pram->iphoffset[0]);
749 pr_info("iphoffset[1] : addr - 0x%08x, val - 0x%02x\n",
750 (u32)&ugeth->p_tx_glbl_pram->iphoffset[1],
751 ugeth->p_tx_glbl_pram->iphoffset[1]);
752 pr_info("iphoffset[2] : addr - 0x%08x, val - 0x%02x\n",
753 (u32)&ugeth->p_tx_glbl_pram->iphoffset[2],
754 ugeth->p_tx_glbl_pram->iphoffset[2]);
755 pr_info("iphoffset[3] : addr - 0x%08x, val - 0x%02x\n",
756 (u32)&ugeth->p_tx_glbl_pram->iphoffset[3],
757 ugeth->p_tx_glbl_pram->iphoffset[3]);
758 pr_info("iphoffset[4] : addr - 0x%08x, val - 0x%02x\n",
759 (u32)&ugeth->p_tx_glbl_pram->iphoffset[4],
760 ugeth->p_tx_glbl_pram->iphoffset[4]);
761 pr_info("iphoffset[5] : addr - 0x%08x, val - 0x%02x\n",
762 (u32)&ugeth->p_tx_glbl_pram->iphoffset[5],
763 ugeth->p_tx_glbl_pram->iphoffset[5]);
764 pr_info("iphoffset[6] : addr - 0x%08x, val - 0x%02x\n",
765 (u32)&ugeth->p_tx_glbl_pram->iphoffset[6],
766 ugeth->p_tx_glbl_pram->iphoffset[6]);
767 pr_info("iphoffset[7] : addr - 0x%08x, val - 0x%02x\n",
768 (u32)&ugeth->p_tx_glbl_pram->iphoffset[7],
769 ugeth->p_tx_glbl_pram->iphoffset[7]);
770 pr_info("vtagtable[0] : addr - 0x%08x, val - 0x%08x\n",
771 (u32)&ugeth->p_tx_glbl_pram->vtagtable[0],
772 in_be32(&ugeth->p_tx_glbl_pram->vtagtable[0]));
773 pr_info("vtagtable[1] : addr - 0x%08x, val - 0x%08x\n",
774 (u32)&ugeth->p_tx_glbl_pram->vtagtable[1],
775 in_be32(&ugeth->p_tx_glbl_pram->vtagtable[1]));
776 pr_info("vtagtable[2] : addr - 0x%08x, val - 0x%08x\n",
777 (u32)&ugeth->p_tx_glbl_pram->vtagtable[2],
778 in_be32(&ugeth->p_tx_glbl_pram->vtagtable[2]));
779 pr_info("vtagtable[3] : addr - 0x%08x, val - 0x%08x\n",
780 (u32)&ugeth->p_tx_glbl_pram->vtagtable[3],
781 in_be32(&ugeth->p_tx_glbl_pram->vtagtable[3]));
782 pr_info("vtagtable[4] : addr - 0x%08x, val - 0x%08x\n",
783 (u32)&ugeth->p_tx_glbl_pram->vtagtable[4],
784 in_be32(&ugeth->p_tx_glbl_pram->vtagtable[4]));
785 pr_info("vtagtable[5] : addr - 0x%08x, val - 0x%08x\n",
786 (u32)&ugeth->p_tx_glbl_pram->vtagtable[5],
787 in_be32(&ugeth->p_tx_glbl_pram->vtagtable[5]));
788 pr_info("vtagtable[6] : addr - 0x%08x, val - 0x%08x\n",
789 (u32)&ugeth->p_tx_glbl_pram->vtagtable[6],
790 in_be32(&ugeth->p_tx_glbl_pram->vtagtable[6]));
791 pr_info("vtagtable[7] : addr - 0x%08x, val - 0x%08x\n",
792 (u32)&ugeth->p_tx_glbl_pram->vtagtable[7],
793 in_be32(&ugeth->p_tx_glbl_pram->vtagtable[7]));
794 pr_info("tqptr : addr - 0x%08x, val - 0x%08x\n",
795 (u32)&ugeth->p_tx_glbl_pram->tqptr,
796 in_be32(&ugeth->p_tx_glbl_pram->tqptr));
797 }
798 if (ugeth->p_rx_glbl_pram) {
799 pr_info("RX global param:\n");
800 pr_info("Base address: 0x%08x\n", (u32)ugeth->p_rx_glbl_pram);
801 pr_info("remoder : addr - 0x%08x, val - 0x%08x\n",
802 (u32)&ugeth->p_rx_glbl_pram->remoder,
803 in_be32(&ugeth->p_rx_glbl_pram->remoder));
804 pr_info("rqptr : addr - 0x%08x, val - 0x%08x\n",
805 (u32)&ugeth->p_rx_glbl_pram->rqptr,
806 in_be32(&ugeth->p_rx_glbl_pram->rqptr));
807 pr_info("typeorlen : addr - 0x%08x, val - 0x%04x\n",
808 (u32)&ugeth->p_rx_glbl_pram->typeorlen,
809 in_be16(&ugeth->p_rx_glbl_pram->typeorlen));
810 pr_info("rxgstpack : addr - 0x%08x, val - 0x%02x\n",
811 (u32)&ugeth->p_rx_glbl_pram->rxgstpack,
812 ugeth->p_rx_glbl_pram->rxgstpack);
813 pr_info("rxrmonbaseptr : addr - 0x%08x, val - 0x%08x\n",
814 (u32)&ugeth->p_rx_glbl_pram->rxrmonbaseptr,
815 in_be32(&ugeth->p_rx_glbl_pram->rxrmonbaseptr));
816 pr_info("intcoalescingptr: addr - 0x%08x, val - 0x%08x\n",
817 (u32)&ugeth->p_rx_glbl_pram->intcoalescingptr,
818 in_be32(&ugeth->p_rx_glbl_pram->intcoalescingptr));
819 pr_info("rstate : addr - 0x%08x, val - 0x%02x\n",
820 (u32)&ugeth->p_rx_glbl_pram->rstate,
821 ugeth->p_rx_glbl_pram->rstate);
822 pr_info("mrblr : addr - 0x%08x, val - 0x%04x\n",
823 (u32)&ugeth->p_rx_glbl_pram->mrblr,
824 in_be16(&ugeth->p_rx_glbl_pram->mrblr));
825 pr_info("rbdqptr : addr - 0x%08x, val - 0x%08x\n",
826 (u32)&ugeth->p_rx_glbl_pram->rbdqptr,
827 in_be32(&ugeth->p_rx_glbl_pram->rbdqptr));
828 pr_info("mflr : addr - 0x%08x, val - 0x%04x\n",
829 (u32)&ugeth->p_rx_glbl_pram->mflr,
830 in_be16(&ugeth->p_rx_glbl_pram->mflr));
831 pr_info("minflr : addr - 0x%08x, val - 0x%04x\n",
832 (u32)&ugeth->p_rx_glbl_pram->minflr,
833 in_be16(&ugeth->p_rx_glbl_pram->minflr));
834 pr_info("maxd1 : addr - 0x%08x, val - 0x%04x\n",
835 (u32)&ugeth->p_rx_glbl_pram->maxd1,
836 in_be16(&ugeth->p_rx_glbl_pram->maxd1));
837 pr_info("maxd2 : addr - 0x%08x, val - 0x%04x\n",
838 (u32)&ugeth->p_rx_glbl_pram->maxd2,
839 in_be16(&ugeth->p_rx_glbl_pram->maxd2));
840 pr_info("ecamptr : addr - 0x%08x, val - 0x%08x\n",
841 (u32)&ugeth->p_rx_glbl_pram->ecamptr,
842 in_be32(&ugeth->p_rx_glbl_pram->ecamptr));
843 pr_info("l2qt : addr - 0x%08x, val - 0x%08x\n",
844 (u32)&ugeth->p_rx_glbl_pram->l2qt,
845 in_be32(&ugeth->p_rx_glbl_pram->l2qt));
846 pr_info("l3qt[0] : addr - 0x%08x, val - 0x%08x\n",
847 (u32)&ugeth->p_rx_glbl_pram->l3qt[0],
848 in_be32(&ugeth->p_rx_glbl_pram->l3qt[0]));
849 pr_info("l3qt[1] : addr - 0x%08x, val - 0x%08x\n",
850 (u32)&ugeth->p_rx_glbl_pram->l3qt[1],
851 in_be32(&ugeth->p_rx_glbl_pram->l3qt[1]));
852 pr_info("l3qt[2] : addr - 0x%08x, val - 0x%08x\n",
853 (u32)&ugeth->p_rx_glbl_pram->l3qt[2],
854 in_be32(&ugeth->p_rx_glbl_pram->l3qt[2]));
855 pr_info("l3qt[3] : addr - 0x%08x, val - 0x%08x\n",
856 (u32)&ugeth->p_rx_glbl_pram->l3qt[3],
857 in_be32(&ugeth->p_rx_glbl_pram->l3qt[3]));
858 pr_info("l3qt[4] : addr - 0x%08x, val - 0x%08x\n",
859 (u32)&ugeth->p_rx_glbl_pram->l3qt[4],
860 in_be32(&ugeth->p_rx_glbl_pram->l3qt[4]));
861 pr_info("l3qt[5] : addr - 0x%08x, val - 0x%08x\n",
862 (u32)&ugeth->p_rx_glbl_pram->l3qt[5],
863 in_be32(&ugeth->p_rx_glbl_pram->l3qt[5]));
864 pr_info("l3qt[6] : addr - 0x%08x, val - 0x%08x\n",
865 (u32)&ugeth->p_rx_glbl_pram->l3qt[6],
866 in_be32(&ugeth->p_rx_glbl_pram->l3qt[6]));
867 pr_info("l3qt[7] : addr - 0x%08x, val - 0x%08x\n",
868 (u32)&ugeth->p_rx_glbl_pram->l3qt[7],
869 in_be32(&ugeth->p_rx_glbl_pram->l3qt[7]));
870 pr_info("vlantype : addr - 0x%08x, val - 0x%04x\n",
871 (u32)&ugeth->p_rx_glbl_pram->vlantype,
872 in_be16(&ugeth->p_rx_glbl_pram->vlantype));
873 pr_info("vlantci : addr - 0x%08x, val - 0x%04x\n",
874 (u32)&ugeth->p_rx_glbl_pram->vlantci,
875 in_be16(&ugeth->p_rx_glbl_pram->vlantci));
876 for (i = 0; i < 64; i++)
877 pr_info("addressfiltering[%d]: addr - 0x%08x, val - 0x%02x\n",
878 i,
879 (u32)&ugeth->p_rx_glbl_pram->addressfiltering[i],
880 ugeth->p_rx_glbl_pram->addressfiltering[i]);
881 pr_info("exfGlobalParam : addr - 0x%08x, val - 0x%08x\n",
882 (u32)&ugeth->p_rx_glbl_pram->exfGlobalParam,
883 in_be32(&ugeth->p_rx_glbl_pram->exfGlobalParam));
884 }
885 if (ugeth->p_send_q_mem_reg) {
886 pr_info("Send Q memory registers:\n");
887 pr_info("Base address: 0x%08x\n", (u32)ugeth->p_send_q_mem_reg);
888 for (i = 0; i < ucc_geth_tx_queues(ugeth->ug_info); i++) {
889 pr_info("SQQD[%d]:\n", i);
890 pr_info("Base address: 0x%08x\n",
891 (u32)&ugeth->p_send_q_mem_reg->sqqd[i]);
892 mem_disp((u8 *) & ugeth->p_send_q_mem_reg->sqqd[i],
893 sizeof(struct ucc_geth_send_queue_qd));
894 }
895 }
896 if (ugeth->p_scheduler) {
897 pr_info("Scheduler:\n");
898 pr_info("Base address: 0x%08x\n", (u32)ugeth->p_scheduler);
899 mem_disp((u8 *) ugeth->p_scheduler,
900 sizeof(*ugeth->p_scheduler));
901 }
902 if (ugeth->p_tx_fw_statistics_pram) {
903 pr_info("TX FW statistics pram:\n");
904 pr_info("Base address: 0x%08x\n",
905 (u32)ugeth->p_tx_fw_statistics_pram);
906 mem_disp((u8 *) ugeth->p_tx_fw_statistics_pram,
907 sizeof(*ugeth->p_tx_fw_statistics_pram));
908 }
909 if (ugeth->p_rx_fw_statistics_pram) {
910 pr_info("RX FW statistics pram:\n");
911 pr_info("Base address: 0x%08x\n",
912 (u32)ugeth->p_rx_fw_statistics_pram);
913 mem_disp((u8 *) ugeth->p_rx_fw_statistics_pram,
914 sizeof(*ugeth->p_rx_fw_statistics_pram));
915 }
916 if (ugeth->p_rx_irq_coalescing_tbl) {
917 pr_info("RX IRQ coalescing tables:\n");
918 pr_info("Base address: 0x%08x\n",
919 (u32)ugeth->p_rx_irq_coalescing_tbl);
920 for (i = 0; i < ucc_geth_rx_queues(ugeth->ug_info); i++) {
921 pr_info("RX IRQ coalescing table entry[%d]:\n", i);
922 pr_info("Base address: 0x%08x\n",
923 (u32)&ugeth->p_rx_irq_coalescing_tbl->
924 coalescingentry[i]);
925 pr_info("interruptcoalescingmaxvalue: addr - 0x%08x, val - 0x%08x\n",
926 (u32)&ugeth->p_rx_irq_coalescing_tbl->
927 coalescingentry[i].interruptcoalescingmaxvalue,
928 in_be32(&ugeth->p_rx_irq_coalescing_tbl->
929 coalescingentry[i].
930 interruptcoalescingmaxvalue));
931 pr_info("interruptcoalescingcounter : addr - 0x%08x, val - 0x%08x\n",
932 (u32)&ugeth->p_rx_irq_coalescing_tbl->
933 coalescingentry[i].interruptcoalescingcounter,
934 in_be32(&ugeth->p_rx_irq_coalescing_tbl->
935 coalescingentry[i].
936 interruptcoalescingcounter));
937 }
938 }
939 if (ugeth->p_rx_bd_qs_tbl) {
940 pr_info("RX BD QS tables:\n");
941 pr_info("Base address: 0x%08x\n", (u32)ugeth->p_rx_bd_qs_tbl);
942 for (i = 0; i < ucc_geth_rx_queues(ugeth->ug_info); i++) {
943 pr_info("RX BD QS table[%d]:\n", i);
944 pr_info("Base address: 0x%08x\n",
945 (u32)&ugeth->p_rx_bd_qs_tbl[i]);
946 pr_info("bdbaseptr : addr - 0x%08x, val - 0x%08x\n",
947 (u32)&ugeth->p_rx_bd_qs_tbl[i].bdbaseptr,
948 in_be32(&ugeth->p_rx_bd_qs_tbl[i].bdbaseptr));
949 pr_info("bdptr : addr - 0x%08x, val - 0x%08x\n",
950 (u32)&ugeth->p_rx_bd_qs_tbl[i].bdptr,
951 in_be32(&ugeth->p_rx_bd_qs_tbl[i].bdptr));
952 pr_info("externalbdbaseptr: addr - 0x%08x, val - 0x%08x\n",
953 (u32)&ugeth->p_rx_bd_qs_tbl[i].externalbdbaseptr,
954 in_be32(&ugeth->p_rx_bd_qs_tbl[i].
955 externalbdbaseptr));
956 pr_info("externalbdptr : addr - 0x%08x, val - 0x%08x\n",
957 (u32)&ugeth->p_rx_bd_qs_tbl[i].externalbdptr,
958 in_be32(&ugeth->p_rx_bd_qs_tbl[i].externalbdptr));
959 pr_info("ucode RX Prefetched BDs:\n");
960 pr_info("Base address: 0x%08x\n",
961 (u32)qe_muram_addr(in_be32
962 (&ugeth->p_rx_bd_qs_tbl[i].
963 bdbaseptr)));
964 mem_disp((u8 *)
965 qe_muram_addr(in_be32
966 (&ugeth->p_rx_bd_qs_tbl[i].
967 bdbaseptr)),
968 sizeof(struct ucc_geth_rx_prefetched_bds));
969 }
970 }
971 if (ugeth->p_init_enet_param_shadow) {
972 int size;
973 pr_info("Init enet param shadow:\n");
974 pr_info("Base address: 0x%08x\n",
975 (u32) ugeth->p_init_enet_param_shadow);
976 mem_disp((u8 *) ugeth->p_init_enet_param_shadow,
977 sizeof(*ugeth->p_init_enet_param_shadow));
978
979 size = sizeof(struct ucc_geth_thread_rx_pram);
980 if (ugeth->ug_info->rxExtendedFiltering) {
981 size +=
982 THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING;
983 if (ugeth->ug_info->largestexternallookupkeysize ==
984 QE_FLTR_TABLE_LOOKUP_KEY_SIZE_8_BYTES)
985 size +=
986 THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING_8;
987 if (ugeth->ug_info->largestexternallookupkeysize ==
988 QE_FLTR_TABLE_LOOKUP_KEY_SIZE_16_BYTES)
989 size +=
990 THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING_16;
991 }
992
993 dump_init_enet_entries(ugeth,
994 &(ugeth->p_init_enet_param_shadow->
995 txthread[0]),
996 ENET_INIT_PARAM_MAX_ENTRIES_TX,
997 sizeof(struct ucc_geth_thread_tx_pram),
998 ugeth->ug_info->riscTx, 0);
999 dump_init_enet_entries(ugeth,
1000 &(ugeth->p_init_enet_param_shadow->
1001 rxthread[0]),
1002 ENET_INIT_PARAM_MAX_ENTRIES_RX, size,
1003 ugeth->ug_info->riscRx, 1);
1004 }
1005}
1006#endif /* DEBUG */
1007
1008static void init_default_reg_vals(u32 __iomem *upsmr_register,
1009 u32 __iomem *maccfg1_register,
1010 u32 __iomem *maccfg2_register)
1011{
1012 out_be32(upsmr_register, UCC_GETH_UPSMR_INIT);
1013 out_be32(maccfg1_register, UCC_GETH_MACCFG1_INIT);
1014 out_be32(maccfg2_register, UCC_GETH_MACCFG2_INIT);
1015}
1016
1017static int init_half_duplex_params(int alt_beb,
1018 int back_pressure_no_backoff,
1019 int no_backoff,
1020 int excess_defer,
1021 u8 alt_beb_truncation,
1022 u8 max_retransmissions,
1023 u8 collision_window,
1024 u32 __iomem *hafdup_register)
1025{
1026 u32 value = 0;
1027
1028 if ((alt_beb_truncation > HALFDUP_ALT_BEB_TRUNCATION_MAX) ||
1029 (max_retransmissions > HALFDUP_MAX_RETRANSMISSION_MAX) ||
1030 (collision_window > HALFDUP_COLLISION_WINDOW_MAX))
1031 return -EINVAL;
1032
1033 value = (u32) (alt_beb_truncation << HALFDUP_ALT_BEB_TRUNCATION_SHIFT);
1034
1035 if (alt_beb)
1036 value |= HALFDUP_ALT_BEB;
1037 if (back_pressure_no_backoff)
1038 value |= HALFDUP_BACK_PRESSURE_NO_BACKOFF;
1039 if (no_backoff)
1040 value |= HALFDUP_NO_BACKOFF;
1041 if (excess_defer)
1042 value |= HALFDUP_EXCESSIVE_DEFER;
1043
1044 value |= (max_retransmissions << HALFDUP_MAX_RETRANSMISSION_SHIFT);
1045
1046 value |= collision_window;
1047
1048 out_be32(hafdup_register, value);
1049 return 0;
1050}
1051
1052static int init_inter_frame_gap_params(u8 non_btb_cs_ipg,
1053 u8 non_btb_ipg,
1054 u8 min_ifg,
1055 u8 btb_ipg,
1056 u32 __iomem *ipgifg_register)
1057{
1058 u32 value = 0;
1059
1060 /* Non-Back-to-back IPG part 1 should be <= Non-Back-to-back
1061 IPG part 2 */
1062 if (non_btb_cs_ipg > non_btb_ipg)
1063 return -EINVAL;
1064
1065 if ((non_btb_cs_ipg > IPGIFG_NON_BACK_TO_BACK_IFG_PART1_MAX) ||
1066 (non_btb_ipg > IPGIFG_NON_BACK_TO_BACK_IFG_PART2_MAX) ||
1067 /*(min_ifg > IPGIFG_MINIMUM_IFG_ENFORCEMENT_MAX) || */
1068 (btb_ipg > IPGIFG_BACK_TO_BACK_IFG_MAX))
1069 return -EINVAL;
1070
1071 value |=
1072 ((non_btb_cs_ipg << IPGIFG_NON_BACK_TO_BACK_IFG_PART1_SHIFT) &
1073 IPGIFG_NBTB_CS_IPG_MASK);
1074 value |=
1075 ((non_btb_ipg << IPGIFG_NON_BACK_TO_BACK_IFG_PART2_SHIFT) &
1076 IPGIFG_NBTB_IPG_MASK);
1077 value |=
1078 ((min_ifg << IPGIFG_MINIMUM_IFG_ENFORCEMENT_SHIFT) &
1079 IPGIFG_MIN_IFG_MASK);
1080 value |= (btb_ipg & IPGIFG_BTB_IPG_MASK);
1081
1082 out_be32(ipgifg_register, value);
1083 return 0;
1084}
1085
1086int init_flow_control_params(u32 automatic_flow_control_mode,
1087 int rx_flow_control_enable,
1088 int tx_flow_control_enable,
1089 u16 pause_period,
1090 u16 extension_field,
1091 u32 __iomem *upsmr_register,
1092 u32 __iomem *uempr_register,
1093 u32 __iomem *maccfg1_register)
1094{
1095 u32 value = 0;
1096
1097 /* Set UEMPR register */
1098 value = (u32) pause_period << UEMPR_PAUSE_TIME_VALUE_SHIFT;
1099 value |= (u32) extension_field << UEMPR_EXTENDED_PAUSE_TIME_VALUE_SHIFT;
1100 out_be32(uempr_register, value);
1101
1102 /* Set UPSMR register */
1103 setbits32(upsmr_register, automatic_flow_control_mode);
1104
1105 value = in_be32(maccfg1_register);
1106 if (rx_flow_control_enable)
1107 value |= MACCFG1_FLOW_RX;
1108 if (tx_flow_control_enable)
1109 value |= MACCFG1_FLOW_TX;
1110 out_be32(maccfg1_register, value);
1111
1112 return 0;
1113}
1114
1115static int init_hw_statistics_gathering_mode(int enable_hardware_statistics,
1116 int auto_zero_hardware_statistics,
1117 u32 __iomem *upsmr_register,
1118 u16 __iomem *uescr_register)
1119{
1120 u16 uescr_value = 0;
1121
1122 /* Enable hardware statistics gathering if requested */
1123 if (enable_hardware_statistics)
1124 setbits32(upsmr_register, UCC_GETH_UPSMR_HSE);
1125
1126 /* Clear hardware statistics counters */
1127 uescr_value = in_be16(uescr_register);
1128 uescr_value |= UESCR_CLRCNT;
1129 /* Automatically zero hardware statistics counters on read,
1130 if requested */
1131 if (auto_zero_hardware_statistics)
1132 uescr_value |= UESCR_AUTOZ;
1133 out_be16(uescr_register, uescr_value);
1134
1135 return 0;
1136}
1137
1138static int init_firmware_statistics_gathering_mode(int
1139 enable_tx_firmware_statistics,
1140 int enable_rx_firmware_statistics,
1141 u32 __iomem *tx_rmon_base_ptr,
1142 u32 tx_firmware_statistics_structure_address,
1143 u32 __iomem *rx_rmon_base_ptr,
1144 u32 rx_firmware_statistics_structure_address,
1145 u16 __iomem *temoder_register,
1146 u32 __iomem *remoder_register)
1147{
1148 /* Note: this function does not check if */
1149 /* the parameters it receives are NULL */
1150
1151 if (enable_tx_firmware_statistics) {
1152 out_be32(tx_rmon_base_ptr,
1153 tx_firmware_statistics_structure_address);
1154 setbits16(temoder_register, TEMODER_TX_RMON_STATISTICS_ENABLE);
1155 }
1156
1157 if (enable_rx_firmware_statistics) {
1158 out_be32(rx_rmon_base_ptr,
1159 rx_firmware_statistics_structure_address);
1160 setbits32(remoder_register, REMODER_RX_RMON_STATISTICS_ENABLE);
1161 }
1162
1163 return 0;
1164}
1165
1166static int init_mac_station_addr_regs(u8 address_byte_0,
1167 u8 address_byte_1,
1168 u8 address_byte_2,
1169 u8 address_byte_3,
1170 u8 address_byte_4,
1171 u8 address_byte_5,
1172 u32 __iomem *macstnaddr1_register,
1173 u32 __iomem *macstnaddr2_register)
1174{
1175 u32 value = 0;
1176
1177 /* Example: for a station address of 0x12345678ABCD, */
1178 /* 0x12 is byte 0, 0x34 is byte 1 and so on and 0xCD is byte 5 */
1179
1180 /* MACSTNADDR1 Register: */
1181
1182 /* 0 7 8 15 */
1183 /* station address byte 5 station address byte 4 */
1184 /* 16 23 24 31 */
1185 /* station address byte 3 station address byte 2 */
1186 value |= (u32) ((address_byte_2 << 0) & 0x000000FF);
1187 value |= (u32) ((address_byte_3 << 8) & 0x0000FF00);
1188 value |= (u32) ((address_byte_4 << 16) & 0x00FF0000);
1189 value |= (u32) ((address_byte_5 << 24) & 0xFF000000);
1190
1191 out_be32(macstnaddr1_register, value);
1192
1193 /* MACSTNADDR2 Register: */
1194
1195 /* 0 7 8 15 */
1196 /* station address byte 1 station address byte 0 */
1197 /* 16 23 24 31 */
1198 /* reserved reserved */
1199 value = 0;
1200 value |= (u32) ((address_byte_0 << 16) & 0x00FF0000);
1201 value |= (u32) ((address_byte_1 << 24) & 0xFF000000);
1202
1203 out_be32(macstnaddr2_register, value);
1204
1205 return 0;
1206}
1207
1208static int init_check_frame_length_mode(int length_check,
1209 u32 __iomem *maccfg2_register)
1210{
1211 u32 value = 0;
1212
1213 value = in_be32(maccfg2_register);
1214
1215 if (length_check)
1216 value |= MACCFG2_LC;
1217 else
1218 value &= ~MACCFG2_LC;
1219
1220 out_be32(maccfg2_register, value);
1221 return 0;
1222}
1223
1224static int init_preamble_length(u8 preamble_length,
1225 u32 __iomem *maccfg2_register)
1226{
1227 if ((preamble_length < 3) || (preamble_length > 7))
1228 return -EINVAL;
1229
1230 clrsetbits_be32(maccfg2_register, MACCFG2_PREL_MASK,
1231 preamble_length << MACCFG2_PREL_SHIFT);
1232
1233 return 0;
1234}
1235
1236static int init_rx_parameters(int reject_broadcast,
1237 int receive_short_frames,
1238 int promiscuous, u32 __iomem *upsmr_register)
1239{
1240 u32 value = 0;
1241
1242 value = in_be32(upsmr_register);
1243
1244 if (reject_broadcast)
1245 value |= UCC_GETH_UPSMR_BRO;
1246 else
1247 value &= ~UCC_GETH_UPSMR_BRO;
1248
1249 if (receive_short_frames)
1250 value |= UCC_GETH_UPSMR_RSH;
1251 else
1252 value &= ~UCC_GETH_UPSMR_RSH;
1253
1254 if (promiscuous)
1255 value |= UCC_GETH_UPSMR_PRO;
1256 else
1257 value &= ~UCC_GETH_UPSMR_PRO;
1258
1259 out_be32(upsmr_register, value);
1260
1261 return 0;
1262}
1263
1264static int init_max_rx_buff_len(u16 max_rx_buf_len,
1265 u16 __iomem *mrblr_register)
1266{
1267 /* max_rx_buf_len value must be a multiple of 128 */
1268 if ((max_rx_buf_len == 0) ||
1269 (max_rx_buf_len % UCC_GETH_MRBLR_ALIGNMENT))
1270 return -EINVAL;
1271
1272 out_be16(mrblr_register, max_rx_buf_len);
1273 return 0;
1274}
1275
1276static int init_min_frame_len(u16 min_frame_length,
1277 u16 __iomem *minflr_register,
1278 u16 __iomem *mrblr_register)
1279{
1280 u16 mrblr_value = 0;
1281
1282 mrblr_value = in_be16(mrblr_register);
1283 if (min_frame_length >= (mrblr_value - 4))
1284 return -EINVAL;
1285
1286 out_be16(minflr_register, min_frame_length);
1287 return 0;
1288}
1289
1290static int adjust_enet_interface(struct ucc_geth_private *ugeth)
1291{
1292 struct ucc_geth_info *ug_info;
1293 struct ucc_geth __iomem *ug_regs;
1294 struct ucc_fast __iomem *uf_regs;
1295 int ret_val;
1296 u32 upsmr, maccfg2;
1297 u16 value;
1298
1299 ugeth_vdbg("%s: IN", __func__);
1300
1301 ug_info = ugeth->ug_info;
1302 ug_regs = ugeth->ug_regs;
1303 uf_regs = ugeth->uccf->uf_regs;
1304
1305 /* Set MACCFG2 */
1306 maccfg2 = in_be32(&ug_regs->maccfg2);
1307 maccfg2 &= ~MACCFG2_INTERFACE_MODE_MASK;
1308 if ((ugeth->max_speed == SPEED_10) ||
1309 (ugeth->max_speed == SPEED_100))
1310 maccfg2 |= MACCFG2_INTERFACE_MODE_NIBBLE;
1311 else if (ugeth->max_speed == SPEED_1000)
1312 maccfg2 |= MACCFG2_INTERFACE_MODE_BYTE;
1313 maccfg2 |= ug_info->padAndCrc;
1314 out_be32(&ug_regs->maccfg2, maccfg2);
1315
1316 /* Set UPSMR */
1317 upsmr = in_be32(&uf_regs->upsmr);
1318 upsmr &= ~(UCC_GETH_UPSMR_RPM | UCC_GETH_UPSMR_R10M |
1319 UCC_GETH_UPSMR_TBIM | UCC_GETH_UPSMR_RMM);
1320 if ((ugeth->phy_interface == PHY_INTERFACE_MODE_RMII) ||
1321 (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII) ||
1322 (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII_ID) ||
1323 (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII_RXID) ||
1324 (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII_TXID) ||
1325 (ugeth->phy_interface == PHY_INTERFACE_MODE_RTBI)) {
1326 if (ugeth->phy_interface != PHY_INTERFACE_MODE_RMII)
1327 upsmr |= UCC_GETH_UPSMR_RPM;
1328 switch (ugeth->max_speed) {
1329 case SPEED_10:
1330 upsmr |= UCC_GETH_UPSMR_R10M;
1331 fallthrough;
1332 case SPEED_100:
1333 if (ugeth->phy_interface != PHY_INTERFACE_MODE_RTBI)
1334 upsmr |= UCC_GETH_UPSMR_RMM;
1335 }
1336 }
1337 if ((ugeth->phy_interface == PHY_INTERFACE_MODE_TBI) ||
1338 (ugeth->phy_interface == PHY_INTERFACE_MODE_RTBI)) {
1339 upsmr |= UCC_GETH_UPSMR_TBIM;
1340 }
1341 if (ugeth->phy_interface == PHY_INTERFACE_MODE_SGMII)
1342 upsmr |= UCC_GETH_UPSMR_SGMM;
1343
1344 out_be32(&uf_regs->upsmr, upsmr);
1345
1346 /* Disable autonegotiation in tbi mode, because by default it
1347 comes up in autonegotiation mode. */
1348 /* Note that this depends on proper setting in utbipar register. */
1349 if ((ugeth->phy_interface == PHY_INTERFACE_MODE_TBI) ||
1350 (ugeth->phy_interface == PHY_INTERFACE_MODE_RTBI)) {
1351 struct ucc_geth_info *ug_info = ugeth->ug_info;
1352 struct phy_device *tbiphy;
1353
1354 if (!ug_info->tbi_node)
1355 pr_warn("TBI mode requires that the device tree specify a tbi-handle\n");
1356
1357 tbiphy = of_phy_find_device(ug_info->tbi_node);
1358 if (!tbiphy)
1359 pr_warn("Could not get TBI device\n");
1360
1361 value = phy_read(tbiphy, ENET_TBI_MII_CR);
1362 value &= ~0x1000; /* Turn off autonegotiation */
1363 phy_write(tbiphy, ENET_TBI_MII_CR, value);
1364
1365 put_device(&tbiphy->mdio.dev);
1366 }
1367
1368 init_check_frame_length_mode(ug_info->lengthCheckRx, &ug_regs->maccfg2);
1369
1370 ret_val = init_preamble_length(ug_info->prel, &ug_regs->maccfg2);
1371 if (ret_val != 0) {
1372 if (netif_msg_probe(ugeth))
1373 pr_err("Preamble length must be between 3 and 7 inclusive\n");
1374 return ret_val;
1375 }
1376
1377 return 0;
1378}
1379
1380static int ugeth_graceful_stop_tx(struct ucc_geth_private *ugeth)
1381{
1382 struct ucc_fast_private *uccf;
1383 u32 cecr_subblock;
1384 u32 temp;
1385 int i = 10;
1386
1387 uccf = ugeth->uccf;
1388
1389 /* Mask GRACEFUL STOP TX interrupt bit and clear it */
1390 clrbits32(uccf->p_uccm, UCC_GETH_UCCE_GRA);
1391 out_be32(uccf->p_ucce, UCC_GETH_UCCE_GRA); /* clear by writing 1 */
1392
1393 /* Issue host command */
1394 cecr_subblock =
1395 ucc_fast_get_qe_cr_subblock(ugeth->ug_info->uf_info.ucc_num);
1396 qe_issue_cmd(QE_GRACEFUL_STOP_TX, cecr_subblock,
1397 QE_CR_PROTOCOL_ETHERNET, 0);
1398
1399 /* Wait for command to complete */
1400 do {
1401 msleep(10);
1402 temp = in_be32(uccf->p_ucce);
1403 } while (!(temp & UCC_GETH_UCCE_GRA) && --i);
1404
1405 uccf->stopped_tx = 1;
1406
1407 return 0;
1408}
1409
1410static int ugeth_graceful_stop_rx(struct ucc_geth_private *ugeth)
1411{
1412 struct ucc_fast_private *uccf;
1413 u32 cecr_subblock;
1414 u8 temp;
1415 int i = 10;
1416
1417 uccf = ugeth->uccf;
1418
1419 /* Clear acknowledge bit */
1420 temp = in_8(&ugeth->p_rx_glbl_pram->rxgstpack);
1421 temp &= ~GRACEFUL_STOP_ACKNOWLEDGE_RX;
1422 out_8(&ugeth->p_rx_glbl_pram->rxgstpack, temp);
1423
1424 /* Keep issuing command and checking acknowledge bit until
1425 it is asserted, according to spec */
1426 do {
1427 /* Issue host command */
1428 cecr_subblock =
1429 ucc_fast_get_qe_cr_subblock(ugeth->ug_info->uf_info.
1430 ucc_num);
1431 qe_issue_cmd(QE_GRACEFUL_STOP_RX, cecr_subblock,
1432 QE_CR_PROTOCOL_ETHERNET, 0);
1433 msleep(10);
1434 temp = in_8(&ugeth->p_rx_glbl_pram->rxgstpack);
1435 } while (!(temp & GRACEFUL_STOP_ACKNOWLEDGE_RX) && --i);
1436
1437 uccf->stopped_rx = 1;
1438
1439 return 0;
1440}
1441
1442static int ugeth_restart_tx(struct ucc_geth_private *ugeth)
1443{
1444 struct ucc_fast_private *uccf;
1445 u32 cecr_subblock;
1446
1447 uccf = ugeth->uccf;
1448
1449 cecr_subblock =
1450 ucc_fast_get_qe_cr_subblock(ugeth->ug_info->uf_info.ucc_num);
1451 qe_issue_cmd(QE_RESTART_TX, cecr_subblock, QE_CR_PROTOCOL_ETHERNET, 0);
1452 uccf->stopped_tx = 0;
1453
1454 return 0;
1455}
1456
1457static int ugeth_restart_rx(struct ucc_geth_private *ugeth)
1458{
1459 struct ucc_fast_private *uccf;
1460 u32 cecr_subblock;
1461
1462 uccf = ugeth->uccf;
1463
1464 cecr_subblock =
1465 ucc_fast_get_qe_cr_subblock(ugeth->ug_info->uf_info.ucc_num);
1466 qe_issue_cmd(QE_RESTART_RX, cecr_subblock, QE_CR_PROTOCOL_ETHERNET,
1467 0);
1468 uccf->stopped_rx = 0;
1469
1470 return 0;
1471}
1472
1473static int ugeth_enable(struct ucc_geth_private *ugeth, enum comm_dir mode)
1474{
1475 struct ucc_fast_private *uccf;
1476 int enabled_tx, enabled_rx;
1477
1478 uccf = ugeth->uccf;
1479
1480 /* check if the UCC number is in range. */
1481 if (ugeth->ug_info->uf_info.ucc_num >= UCC_MAX_NUM) {
1482 if (netif_msg_probe(ugeth))
1483 pr_err("ucc_num out of range\n");
1484 return -EINVAL;
1485 }
1486
1487 enabled_tx = uccf->enabled_tx;
1488 enabled_rx = uccf->enabled_rx;
1489
1490 /* Get Tx and Rx going again, in case this channel was actively
1491 disabled. */
1492 if ((mode & COMM_DIR_TX) && (!enabled_tx) && uccf->stopped_tx)
1493 ugeth_restart_tx(ugeth);
1494 if ((mode & COMM_DIR_RX) && (!enabled_rx) && uccf->stopped_rx)
1495 ugeth_restart_rx(ugeth);
1496
1497 ucc_fast_enable(uccf, mode); /* OK to do even if not disabled */
1498
1499 return 0;
1500
1501}
1502
1503static int ugeth_disable(struct ucc_geth_private *ugeth, enum comm_dir mode)
1504{
1505 struct ucc_fast_private *uccf;
1506
1507 uccf = ugeth->uccf;
1508
1509 /* check if the UCC number is in range. */
1510 if (ugeth->ug_info->uf_info.ucc_num >= UCC_MAX_NUM) {
1511 if (netif_msg_probe(ugeth))
1512 pr_err("ucc_num out of range\n");
1513 return -EINVAL;
1514 }
1515
1516 /* Stop any transmissions */
1517 if ((mode & COMM_DIR_TX) && uccf->enabled_tx && !uccf->stopped_tx)
1518 ugeth_graceful_stop_tx(ugeth);
1519
1520 /* Stop any receptions */
1521 if ((mode & COMM_DIR_RX) && uccf->enabled_rx && !uccf->stopped_rx)
1522 ugeth_graceful_stop_rx(ugeth);
1523
1524 ucc_fast_disable(ugeth->uccf, mode); /* OK to do even if not enabled */
1525
1526 return 0;
1527}
1528
1529static void ugeth_quiesce(struct ucc_geth_private *ugeth)
1530{
1531 /* Prevent any further xmits */
1532 netif_tx_stop_all_queues(ugeth->ndev);
1533
1534 /* Disable the interrupt to avoid NAPI rescheduling. */
1535 disable_irq(ugeth->ug_info->uf_info.irq);
1536
1537 /* Stop NAPI, and possibly wait for its completion. */
1538 napi_disable(&ugeth->napi);
1539}
1540
1541static void ugeth_activate(struct ucc_geth_private *ugeth)
1542{
1543 napi_enable(&ugeth->napi);
1544 enable_irq(ugeth->ug_info->uf_info.irq);
1545
1546 /* allow to xmit again */
1547 netif_tx_wake_all_queues(ugeth->ndev);
1548 __netdev_watchdog_up(ugeth->ndev);
1549}
1550
1551/* Called every time the controller might need to be made
1552 * aware of new link state. The PHY code conveys this
1553 * information through variables in the ugeth structure, and this
1554 * function converts those variables into the appropriate
1555 * register values, and can bring down the device if needed.
1556 */
1557
1558static void adjust_link(struct net_device *dev)
1559{
1560 struct ucc_geth_private *ugeth = netdev_priv(dev);
1561 struct ucc_geth __iomem *ug_regs;
1562 struct ucc_fast __iomem *uf_regs;
1563 struct phy_device *phydev = ugeth->phydev;
1564 int new_state = 0;
1565
1566 ug_regs = ugeth->ug_regs;
1567 uf_regs = ugeth->uccf->uf_regs;
1568
1569 if (phydev->link) {
1570 u32 tempval = in_be32(&ug_regs->maccfg2);
1571 u32 upsmr = in_be32(&uf_regs->upsmr);
1572 /* Now we make sure that we can be in full duplex mode.
1573 * If not, we operate in half-duplex mode. */
1574 if (phydev->duplex != ugeth->oldduplex) {
1575 new_state = 1;
1576 if (!(phydev->duplex))
1577 tempval &= ~(MACCFG2_FDX);
1578 else
1579 tempval |= MACCFG2_FDX;
1580 ugeth->oldduplex = phydev->duplex;
1581 }
1582
1583 if (phydev->speed != ugeth->oldspeed) {
1584 new_state = 1;
1585 switch (phydev->speed) {
1586 case SPEED_1000:
1587 tempval = ((tempval &
1588 ~(MACCFG2_INTERFACE_MODE_MASK)) |
1589 MACCFG2_INTERFACE_MODE_BYTE);
1590 break;
1591 case SPEED_100:
1592 case SPEED_10:
1593 tempval = ((tempval &
1594 ~(MACCFG2_INTERFACE_MODE_MASK)) |
1595 MACCFG2_INTERFACE_MODE_NIBBLE);
1596 /* if reduced mode, re-set UPSMR.R10M */
1597 if ((ugeth->phy_interface == PHY_INTERFACE_MODE_RMII) ||
1598 (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII) ||
1599 (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII_ID) ||
1600 (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII_RXID) ||
1601 (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII_TXID) ||
1602 (ugeth->phy_interface == PHY_INTERFACE_MODE_RTBI)) {
1603 if (phydev->speed == SPEED_10)
1604 upsmr |= UCC_GETH_UPSMR_R10M;
1605 else
1606 upsmr &= ~UCC_GETH_UPSMR_R10M;
1607 }
1608 break;
1609 default:
1610 if (netif_msg_link(ugeth))
1611 pr_warn(
1612 "%s: Ack! Speed (%d) is not 10/100/1000!",
1613 dev->name, phydev->speed);
1614 break;
1615 }
1616 ugeth->oldspeed = phydev->speed;
1617 }
1618
1619 if (!ugeth->oldlink) {
1620 new_state = 1;
1621 ugeth->oldlink = 1;
1622 }
1623
1624 if (new_state) {
1625 /*
1626 * To change the MAC configuration we need to disable
1627 * the controller. To do so, we have to either grab
1628 * ugeth->lock, which is a bad idea since 'graceful
1629 * stop' commands might take quite a while, or we can
1630 * quiesce driver's activity.
1631 */
1632 ugeth_quiesce(ugeth);
1633 ugeth_disable(ugeth, COMM_DIR_RX_AND_TX);
1634
1635 out_be32(&ug_regs->maccfg2, tempval);
1636 out_be32(&uf_regs->upsmr, upsmr);
1637
1638 ugeth_enable(ugeth, COMM_DIR_RX_AND_TX);
1639 ugeth_activate(ugeth);
1640 }
1641 } else if (ugeth->oldlink) {
1642 new_state = 1;
1643 ugeth->oldlink = 0;
1644 ugeth->oldspeed = 0;
1645 ugeth->oldduplex = -1;
1646 }
1647
1648 if (new_state && netif_msg_link(ugeth))
1649 phy_print_status(phydev);
1650}
1651
1652/* Initialize TBI PHY interface for communicating with the
1653 * SERDES lynx PHY on the chip. We communicate with this PHY
1654 * through the MDIO bus on each controller, treating it as a
1655 * "normal" PHY at the address found in the UTBIPA register. We assume
1656 * that the UTBIPA register is valid. Either the MDIO bus code will set
1657 * it to a value that doesn't conflict with other PHYs on the bus, or the
1658 * value doesn't matter, as there are no other PHYs on the bus.
1659 */
1660static void uec_configure_serdes(struct net_device *dev)
1661{
1662 struct ucc_geth_private *ugeth = netdev_priv(dev);
1663 struct ucc_geth_info *ug_info = ugeth->ug_info;
1664 struct phy_device *tbiphy;
1665
1666 if (!ug_info->tbi_node) {
1667 dev_warn(&dev->dev, "SGMII mode requires that the device "
1668 "tree specify a tbi-handle\n");
1669 return;
1670 }
1671
1672 tbiphy = of_phy_find_device(ug_info->tbi_node);
1673 if (!tbiphy) {
1674 dev_err(&dev->dev, "error: Could not get TBI device\n");
1675 return;
1676 }
1677
1678 /*
1679 * If the link is already up, we must already be ok, and don't need to
1680 * configure and reset the TBI<->SerDes link. Maybe U-Boot configured
1681 * everything for us? Resetting it takes the link down and requires
1682 * several seconds for it to come back.
1683 */
1684 if (phy_read(tbiphy, ENET_TBI_MII_SR) & TBISR_LSTATUS) {
1685 put_device(&tbiphy->mdio.dev);
1686 return;
1687 }
1688
1689 /* Single clk mode, mii mode off(for serdes communication) */
1690 phy_write(tbiphy, ENET_TBI_MII_ANA, TBIANA_SETTINGS);
1691
1692 phy_write(tbiphy, ENET_TBI_MII_TBICON, TBICON_CLK_SELECT);
1693
1694 phy_write(tbiphy, ENET_TBI_MII_CR, TBICR_SETTINGS);
1695
1696 put_device(&tbiphy->mdio.dev);
1697}
1698
1699/* Configure the PHY for dev.
1700 * returns 0 if success. -1 if failure
1701 */
1702static int init_phy(struct net_device *dev)
1703{
1704 struct ucc_geth_private *priv = netdev_priv(dev);
1705 struct ucc_geth_info *ug_info = priv->ug_info;
1706 struct phy_device *phydev;
1707
1708 priv->oldlink = 0;
1709 priv->oldspeed = 0;
1710 priv->oldduplex = -1;
1711
1712 phydev = of_phy_connect(dev, ug_info->phy_node, &adjust_link, 0,
1713 priv->phy_interface);
1714 if (!phydev) {
1715 dev_err(&dev->dev, "Could not attach to PHY\n");
1716 return -ENODEV;
1717 }
1718
1719 if (priv->phy_interface == PHY_INTERFACE_MODE_SGMII)
1720 uec_configure_serdes(dev);
1721
1722 phy_set_max_speed(phydev, priv->max_speed);
1723
1724 priv->phydev = phydev;
1725
1726 return 0;
1727}
1728
1729static void ugeth_dump_regs(struct ucc_geth_private *ugeth)
1730{
1731#ifdef DEBUG
1732 ucc_fast_dump_regs(ugeth->uccf);
1733 dump_regs(ugeth);
1734 dump_bds(ugeth);
1735#endif
1736}
1737
1738static int ugeth_82xx_filtering_clear_all_addr_in_hash(struct ucc_geth_private *
1739 ugeth,
1740 enum enet_addr_type
1741 enet_addr_type)
1742{
1743 struct ucc_geth_82xx_address_filtering_pram __iomem *p_82xx_addr_filt;
1744 struct ucc_fast_private *uccf;
1745 enum comm_dir comm_dir;
1746 struct list_head *p_lh;
1747 u16 i, num;
1748 u32 __iomem *addr_h;
1749 u32 __iomem *addr_l;
1750 u8 *p_counter;
1751
1752 uccf = ugeth->uccf;
1753
1754 p_82xx_addr_filt =
1755 (struct ucc_geth_82xx_address_filtering_pram __iomem *)
1756 ugeth->p_rx_glbl_pram->addressfiltering;
1757
1758 if (enet_addr_type == ENET_ADDR_TYPE_GROUP) {
1759 addr_h = &(p_82xx_addr_filt->gaddr_h);
1760 addr_l = &(p_82xx_addr_filt->gaddr_l);
1761 p_lh = &ugeth->group_hash_q;
1762 p_counter = &(ugeth->numGroupAddrInHash);
1763 } else if (enet_addr_type == ENET_ADDR_TYPE_INDIVIDUAL) {
1764 addr_h = &(p_82xx_addr_filt->iaddr_h);
1765 addr_l = &(p_82xx_addr_filt->iaddr_l);
1766 p_lh = &ugeth->ind_hash_q;
1767 p_counter = &(ugeth->numIndAddrInHash);
1768 } else
1769 return -EINVAL;
1770
1771 comm_dir = 0;
1772 if (uccf->enabled_tx)
1773 comm_dir |= COMM_DIR_TX;
1774 if (uccf->enabled_rx)
1775 comm_dir |= COMM_DIR_RX;
1776 if (comm_dir)
1777 ugeth_disable(ugeth, comm_dir);
1778
1779 /* Clear the hash table. */
1780 out_be32(addr_h, 0x00000000);
1781 out_be32(addr_l, 0x00000000);
1782
1783 if (!p_lh)
1784 return 0;
1785
1786 num = *p_counter;
1787
1788 /* Delete all remaining CQ elements */
1789 for (i = 0; i < num; i++)
1790 put_enet_addr_container(ENET_ADDR_CONT_ENTRY(dequeue(p_lh)));
1791
1792 *p_counter = 0;
1793
1794 if (comm_dir)
1795 ugeth_enable(ugeth, comm_dir);
1796
1797 return 0;
1798}
1799
1800static int ugeth_82xx_filtering_clear_addr_in_paddr(struct ucc_geth_private *ugeth,
1801 u8 paddr_num)
1802{
1803 ugeth->indAddrRegUsed[paddr_num] = 0; /* mark this paddr as not used */
1804 return hw_clear_addr_in_paddr(ugeth, paddr_num);/* clear in hardware */
1805}
1806
1807static void ucc_geth_free_rx(struct ucc_geth_private *ugeth)
1808{
1809 struct ucc_geth_info *ug_info;
1810 struct ucc_fast_info *uf_info;
1811 u16 i, j;
1812 u8 __iomem *bd;
1813
1814
1815 ug_info = ugeth->ug_info;
1816 uf_info = &ug_info->uf_info;
1817
1818 for (i = 0; i < ucc_geth_rx_queues(ugeth->ug_info); i++) {
1819 if (ugeth->p_rx_bd_ring[i]) {
1820 /* Return existing data buffers in ring */
1821 bd = ugeth->p_rx_bd_ring[i];
1822 for (j = 0; j < ugeth->ug_info->bdRingLenRx[i]; j++) {
1823 if (ugeth->rx_skbuff[i][j]) {
1824 dma_unmap_single(ugeth->dev,
1825 in_be32(&((struct qe_bd __iomem *)bd)->buf),
1826 ugeth->ug_info->
1827 uf_info.max_rx_buf_length +
1828 UCC_GETH_RX_DATA_BUF_ALIGNMENT,
1829 DMA_FROM_DEVICE);
1830 dev_kfree_skb_any(
1831 ugeth->rx_skbuff[i][j]);
1832 ugeth->rx_skbuff[i][j] = NULL;
1833 }
1834 bd += sizeof(struct qe_bd);
1835 }
1836
1837 kfree(ugeth->rx_skbuff[i]);
1838
1839 kfree(ugeth->p_rx_bd_ring[i]);
1840 ugeth->p_rx_bd_ring[i] = NULL;
1841 }
1842 }
1843
1844}
1845
1846static void ucc_geth_free_tx(struct ucc_geth_private *ugeth)
1847{
1848 struct ucc_geth_info *ug_info;
1849 struct ucc_fast_info *uf_info;
1850 u16 i, j;
1851 u8 __iomem *bd;
1852
1853 netdev_reset_queue(ugeth->ndev);
1854
1855 ug_info = ugeth->ug_info;
1856 uf_info = &ug_info->uf_info;
1857
1858 for (i = 0; i < ucc_geth_tx_queues(ugeth->ug_info); i++) {
1859 bd = ugeth->p_tx_bd_ring[i];
1860 if (!bd)
1861 continue;
1862 for (j = 0; j < ugeth->ug_info->bdRingLenTx[i]; j++) {
1863 if (ugeth->tx_skbuff[i][j]) {
1864 dma_unmap_single(ugeth->dev,
1865 in_be32(&((struct qe_bd __iomem *)bd)->buf),
1866 (in_be32((u32 __iomem *)bd) &
1867 BD_LENGTH_MASK),
1868 DMA_TO_DEVICE);
1869 dev_kfree_skb_any(ugeth->tx_skbuff[i][j]);
1870 ugeth->tx_skbuff[i][j] = NULL;
1871 }
1872 }
1873
1874 kfree(ugeth->tx_skbuff[i]);
1875
1876 kfree(ugeth->p_tx_bd_ring[i]);
1877 ugeth->p_tx_bd_ring[i] = NULL;
1878 }
1879
1880}
1881
1882static void ucc_geth_memclean(struct ucc_geth_private *ugeth)
1883{
1884 if (!ugeth)
1885 return;
1886
1887 if (ugeth->uccf) {
1888 ucc_fast_free(ugeth->uccf);
1889 ugeth->uccf = NULL;
1890 }
1891
1892 qe_muram_free_addr(ugeth->p_thread_data_tx);
1893 ugeth->p_thread_data_tx = NULL;
1894
1895 qe_muram_free_addr(ugeth->p_thread_data_rx);
1896 ugeth->p_thread_data_rx = NULL;
1897
1898 qe_muram_free_addr(ugeth->p_exf_glbl_param);
1899 ugeth->p_exf_glbl_param = NULL;
1900
1901 qe_muram_free_addr(ugeth->p_rx_glbl_pram);
1902 ugeth->p_rx_glbl_pram = NULL;
1903
1904 qe_muram_free_addr(ugeth->p_tx_glbl_pram);
1905 ugeth->p_tx_glbl_pram = NULL;
1906
1907 qe_muram_free_addr(ugeth->p_send_q_mem_reg);
1908 ugeth->p_send_q_mem_reg = NULL;
1909
1910 qe_muram_free_addr(ugeth->p_scheduler);
1911 ugeth->p_scheduler = NULL;
1912
1913 qe_muram_free_addr(ugeth->p_tx_fw_statistics_pram);
1914 ugeth->p_tx_fw_statistics_pram = NULL;
1915
1916 qe_muram_free_addr(ugeth->p_rx_fw_statistics_pram);
1917 ugeth->p_rx_fw_statistics_pram = NULL;
1918
1919 qe_muram_free_addr(ugeth->p_rx_irq_coalescing_tbl);
1920 ugeth->p_rx_irq_coalescing_tbl = NULL;
1921
1922 qe_muram_free_addr(ugeth->p_rx_bd_qs_tbl);
1923 ugeth->p_rx_bd_qs_tbl = NULL;
1924
1925 if (ugeth->p_init_enet_param_shadow) {
1926 return_init_enet_entries(ugeth,
1927 &(ugeth->p_init_enet_param_shadow->
1928 rxthread[0]),
1929 ENET_INIT_PARAM_MAX_ENTRIES_RX,
1930 ugeth->ug_info->riscRx, 1);
1931 return_init_enet_entries(ugeth,
1932 &(ugeth->p_init_enet_param_shadow->
1933 txthread[0]),
1934 ENET_INIT_PARAM_MAX_ENTRIES_TX,
1935 ugeth->ug_info->riscTx, 0);
1936 kfree(ugeth->p_init_enet_param_shadow);
1937 ugeth->p_init_enet_param_shadow = NULL;
1938 }
1939 ucc_geth_free_tx(ugeth);
1940 ucc_geth_free_rx(ugeth);
1941 while (!list_empty(&ugeth->group_hash_q))
1942 put_enet_addr_container(ENET_ADDR_CONT_ENTRY
1943 (dequeue(&ugeth->group_hash_q)));
1944 while (!list_empty(&ugeth->ind_hash_q))
1945 put_enet_addr_container(ENET_ADDR_CONT_ENTRY
1946 (dequeue(&ugeth->ind_hash_q)));
1947 if (ugeth->ug_regs) {
1948 iounmap(ugeth->ug_regs);
1949 ugeth->ug_regs = NULL;
1950 }
1951}
1952
1953static void ucc_geth_set_multi(struct net_device *dev)
1954{
1955 struct ucc_geth_private *ugeth;
1956 struct netdev_hw_addr *ha;
1957 struct ucc_fast __iomem *uf_regs;
1958 struct ucc_geth_82xx_address_filtering_pram __iomem *p_82xx_addr_filt;
1959
1960 ugeth = netdev_priv(dev);
1961
1962 uf_regs = ugeth->uccf->uf_regs;
1963
1964 if (dev->flags & IFF_PROMISC) {
1965 setbits32(&uf_regs->upsmr, UCC_GETH_UPSMR_PRO);
1966 } else {
1967 clrbits32(&uf_regs->upsmr, UCC_GETH_UPSMR_PRO);
1968
1969 p_82xx_addr_filt =
1970 (struct ucc_geth_82xx_address_filtering_pram __iomem *) ugeth->
1971 p_rx_glbl_pram->addressfiltering;
1972
1973 if (dev->flags & IFF_ALLMULTI) {
1974 /* Catch all multicast addresses, so set the
1975 * filter to all 1's.
1976 */
1977 out_be32(&p_82xx_addr_filt->gaddr_h, 0xffffffff);
1978 out_be32(&p_82xx_addr_filt->gaddr_l, 0xffffffff);
1979 } else {
1980 /* Clear filter and add the addresses in the list.
1981 */
1982 out_be32(&p_82xx_addr_filt->gaddr_h, 0x0);
1983 out_be32(&p_82xx_addr_filt->gaddr_l, 0x0);
1984
1985 netdev_for_each_mc_addr(ha, dev) {
1986 /* Ask CPM to run CRC and set bit in
1987 * filter mask.
1988 */
1989 hw_add_addr_in_hash(ugeth, ha->addr);
1990 }
1991 }
1992 }
1993}
1994
1995static void ucc_geth_stop(struct ucc_geth_private *ugeth)
1996{
1997 struct ucc_geth __iomem *ug_regs = ugeth->ug_regs;
1998 struct phy_device *phydev = ugeth->phydev;
1999
2000 ugeth_vdbg("%s: IN", __func__);
2001
2002 /*
2003 * Tell the kernel the link is down.
2004 * Must be done before disabling the controller
2005 * or deadlock may happen.
2006 */
2007 phy_stop(phydev);
2008
2009 /* Disable the controller */
2010 ugeth_disable(ugeth, COMM_DIR_RX_AND_TX);
2011
2012 /* Mask all interrupts */
2013 out_be32(ugeth->uccf->p_uccm, 0x00000000);
2014
2015 /* Clear all interrupts */
2016 out_be32(ugeth->uccf->p_ucce, 0xffffffff);
2017
2018 /* Disable Rx and Tx */
2019 clrbits32(&ug_regs->maccfg1, MACCFG1_ENABLE_RX | MACCFG1_ENABLE_TX);
2020
2021 ucc_geth_memclean(ugeth);
2022}
2023
2024static int ucc_struct_init(struct ucc_geth_private *ugeth)
2025{
2026 struct ucc_geth_info *ug_info;
2027 struct ucc_fast_info *uf_info;
2028 int i;
2029
2030 ug_info = ugeth->ug_info;
2031 uf_info = &ug_info->uf_info;
2032
2033 /* Rx BD lengths */
2034 for (i = 0; i < ucc_geth_rx_queues(ug_info); i++) {
2035 if ((ug_info->bdRingLenRx[i] < UCC_GETH_RX_BD_RING_SIZE_MIN) ||
2036 (ug_info->bdRingLenRx[i] %
2037 UCC_GETH_RX_BD_RING_SIZE_ALIGNMENT)) {
2038 if (netif_msg_probe(ugeth))
2039 pr_err("Rx BD ring length must be multiple of 4, no smaller than 8\n");
2040 return -EINVAL;
2041 }
2042 }
2043
2044 /* Tx BD lengths */
2045 for (i = 0; i < ucc_geth_tx_queues(ug_info); i++) {
2046 if (ug_info->bdRingLenTx[i] < UCC_GETH_TX_BD_RING_SIZE_MIN) {
2047 if (netif_msg_probe(ugeth))
2048 pr_err("Tx BD ring length must be no smaller than 2\n");
2049 return -EINVAL;
2050 }
2051 }
2052
2053 /* mrblr */
2054 if ((uf_info->max_rx_buf_length == 0) ||
2055 (uf_info->max_rx_buf_length % UCC_GETH_MRBLR_ALIGNMENT)) {
2056 if (netif_msg_probe(ugeth))
2057 pr_err("max_rx_buf_length must be non-zero multiple of 128\n");
2058 return -EINVAL;
2059 }
2060
2061 /* num Tx queues */
2062 if (ucc_geth_tx_queues(ug_info) > NUM_TX_QUEUES) {
2063 if (netif_msg_probe(ugeth))
2064 pr_err("number of tx queues too large\n");
2065 return -EINVAL;
2066 }
2067
2068 /* num Rx queues */
2069 if (ucc_geth_rx_queues(ug_info) > NUM_RX_QUEUES) {
2070 if (netif_msg_probe(ugeth))
2071 pr_err("number of rx queues too large\n");
2072 return -EINVAL;
2073 }
2074
2075 /* l2qt */
2076 for (i = 0; i < UCC_GETH_VLAN_PRIORITY_MAX; i++) {
2077 if (ug_info->l2qt[i] >= ucc_geth_rx_queues(ug_info)) {
2078 if (netif_msg_probe(ugeth))
2079 pr_err("VLAN priority table entry must not be larger than number of Rx queues\n");
2080 return -EINVAL;
2081 }
2082 }
2083
2084 /* l3qt */
2085 for (i = 0; i < UCC_GETH_IP_PRIORITY_MAX; i++) {
2086 if (ug_info->l3qt[i] >= ucc_geth_rx_queues(ug_info)) {
2087 if (netif_msg_probe(ugeth))
2088 pr_err("IP priority table entry must not be larger than number of Rx queues\n");
2089 return -EINVAL;
2090 }
2091 }
2092
2093 if (ug_info->cam && !ug_info->ecamptr) {
2094 if (netif_msg_probe(ugeth))
2095 pr_err("If cam mode is chosen, must supply cam ptr\n");
2096 return -EINVAL;
2097 }
2098
2099 if ((ug_info->numStationAddresses !=
2100 UCC_GETH_NUM_OF_STATION_ADDRESSES_1) &&
2101 ug_info->rxExtendedFiltering) {
2102 if (netif_msg_probe(ugeth))
2103 pr_err("Number of station addresses greater than 1 not allowed in extended parsing mode\n");
2104 return -EINVAL;
2105 }
2106
2107 /* Generate uccm_mask for receive */
2108 uf_info->uccm_mask = ug_info->eventRegMask & UCCE_OTHER;/* Errors */
2109 for (i = 0; i < ucc_geth_rx_queues(ug_info); i++)
2110 uf_info->uccm_mask |= (UCC_GETH_UCCE_RXF0 << i);
2111
2112 for (i = 0; i < ucc_geth_tx_queues(ug_info); i++)
2113 uf_info->uccm_mask |= (UCC_GETH_UCCE_TXB0 << i);
2114 /* Initialize the general fast UCC block. */
2115 if (ucc_fast_init(uf_info, &ugeth->uccf)) {
2116 if (netif_msg_probe(ugeth))
2117 pr_err("Failed to init uccf\n");
2118 return -ENOMEM;
2119 }
2120
2121 /* read the number of risc engines, update the riscTx and riscRx
2122 * if there are 4 riscs in QE
2123 */
2124 if (qe_get_num_of_risc() == 4) {
2125 ug_info->riscTx = QE_RISC_ALLOCATION_FOUR_RISCS;
2126 ug_info->riscRx = QE_RISC_ALLOCATION_FOUR_RISCS;
2127 }
2128
2129 ugeth->ug_regs = ioremap(uf_info->regs, sizeof(*ugeth->ug_regs));
2130 if (!ugeth->ug_regs) {
2131 if (netif_msg_probe(ugeth))
2132 pr_err("Failed to ioremap regs\n");
2133 return -ENOMEM;
2134 }
2135
2136 return 0;
2137}
2138
2139static int ucc_geth_alloc_tx(struct ucc_geth_private *ugeth)
2140{
2141 struct ucc_geth_info *ug_info;
2142 struct ucc_fast_info *uf_info;
2143 int length;
2144 u16 i, j;
2145 u8 __iomem *bd;
2146
2147 ug_info = ugeth->ug_info;
2148 uf_info = &ug_info->uf_info;
2149
2150 /* Allocate Tx bds */
2151 for (j = 0; j < ucc_geth_tx_queues(ug_info); j++) {
2152 u32 align = max(UCC_GETH_TX_BD_RING_ALIGNMENT,
2153 UCC_GETH_TX_BD_RING_SIZE_MEMORY_ALIGNMENT);
2154 u32 alloc;
2155
2156 length = ug_info->bdRingLenTx[j] * sizeof(struct qe_bd);
2157 alloc = round_up(length, align);
2158 alloc = roundup_pow_of_two(alloc);
2159
2160 ugeth->p_tx_bd_ring[j] = kmalloc(alloc, GFP_KERNEL);
2161
2162 if (!ugeth->p_tx_bd_ring[j]) {
2163 if (netif_msg_ifup(ugeth))
2164 pr_err("Can not allocate memory for Tx bd rings\n");
2165 return -ENOMEM;
2166 }
2167 /* Zero unused end of bd ring, according to spec */
2168 memset(ugeth->p_tx_bd_ring[j] + length, 0, alloc - length);
2169 }
2170
2171 /* Init Tx bds */
2172 for (j = 0; j < ucc_geth_tx_queues(ug_info); j++) {
2173 /* Setup the skbuff rings */
2174 ugeth->tx_skbuff[j] =
2175 kcalloc(ugeth->ug_info->bdRingLenTx[j],
2176 sizeof(struct sk_buff *), GFP_KERNEL);
2177
2178 if (ugeth->tx_skbuff[j] == NULL) {
2179 if (netif_msg_ifup(ugeth))
2180 pr_err("Could not allocate tx_skbuff\n");
2181 return -ENOMEM;
2182 }
2183
2184 ugeth->skb_curtx[j] = ugeth->skb_dirtytx[j] = 0;
2185 bd = ugeth->confBd[j] = ugeth->txBd[j] = ugeth->p_tx_bd_ring[j];
2186 for (i = 0; i < ug_info->bdRingLenTx[j]; i++) {
2187 /* clear bd buffer */
2188 out_be32(&((struct qe_bd __iomem *)bd)->buf, 0);
2189 /* set bd status and length */
2190 out_be32((u32 __iomem *)bd, 0);
2191 bd += sizeof(struct qe_bd);
2192 }
2193 bd -= sizeof(struct qe_bd);
2194 /* set bd status and length */
2195 out_be32((u32 __iomem *)bd, T_W); /* for last BD set Wrap bit */
2196 }
2197
2198 return 0;
2199}
2200
2201static int ucc_geth_alloc_rx(struct ucc_geth_private *ugeth)
2202{
2203 struct ucc_geth_info *ug_info;
2204 struct ucc_fast_info *uf_info;
2205 int length;
2206 u16 i, j;
2207 u8 __iomem *bd;
2208
2209 ug_info = ugeth->ug_info;
2210 uf_info = &ug_info->uf_info;
2211
2212 /* Allocate Rx bds */
2213 for (j = 0; j < ucc_geth_rx_queues(ug_info); j++) {
2214 u32 align = UCC_GETH_RX_BD_RING_ALIGNMENT;
2215 u32 alloc;
2216
2217 length = ug_info->bdRingLenRx[j] * sizeof(struct qe_bd);
2218 alloc = round_up(length, align);
2219 alloc = roundup_pow_of_two(alloc);
2220
2221 ugeth->p_rx_bd_ring[j] = kmalloc(alloc, GFP_KERNEL);
2222 if (!ugeth->p_rx_bd_ring[j]) {
2223 if (netif_msg_ifup(ugeth))
2224 pr_err("Can not allocate memory for Rx bd rings\n");
2225 return -ENOMEM;
2226 }
2227 }
2228
2229 /* Init Rx bds */
2230 for (j = 0; j < ucc_geth_rx_queues(ug_info); j++) {
2231 /* Setup the skbuff rings */
2232 ugeth->rx_skbuff[j] =
2233 kcalloc(ugeth->ug_info->bdRingLenRx[j],
2234 sizeof(struct sk_buff *), GFP_KERNEL);
2235
2236 if (ugeth->rx_skbuff[j] == NULL) {
2237 if (netif_msg_ifup(ugeth))
2238 pr_err("Could not allocate rx_skbuff\n");
2239 return -ENOMEM;
2240 }
2241
2242 ugeth->skb_currx[j] = 0;
2243 bd = ugeth->rxBd[j] = ugeth->p_rx_bd_ring[j];
2244 for (i = 0; i < ug_info->bdRingLenRx[j]; i++) {
2245 /* set bd status and length */
2246 out_be32((u32 __iomem *)bd, R_I);
2247 /* clear bd buffer */
2248 out_be32(&((struct qe_bd __iomem *)bd)->buf, 0);
2249 bd += sizeof(struct qe_bd);
2250 }
2251 bd -= sizeof(struct qe_bd);
2252 /* set bd status and length */
2253 out_be32((u32 __iomem *)bd, R_W); /* for last BD set Wrap bit */
2254 }
2255
2256 return 0;
2257}
2258
2259static int ucc_geth_startup(struct ucc_geth_private *ugeth)
2260{
2261 struct ucc_geth_82xx_address_filtering_pram __iomem *p_82xx_addr_filt;
2262 struct ucc_geth_init_pram __iomem *p_init_enet_pram;
2263 struct ucc_fast_private *uccf;
2264 struct ucc_geth_info *ug_info;
2265 struct ucc_fast_info *uf_info;
2266 struct ucc_fast __iomem *uf_regs;
2267 struct ucc_geth __iomem *ug_regs;
2268 int ret_val = -EINVAL;
2269 u32 remoder = UCC_GETH_REMODER_INIT;
2270 u32 init_enet_pram_offset, cecr_subblock, command;
2271 u32 ifstat, i, j, size, l2qt, l3qt;
2272 u16 temoder = UCC_GETH_TEMODER_INIT;
2273 u8 function_code = 0;
2274 u8 __iomem *endOfRing;
2275 u8 numThreadsRxNumerical, numThreadsTxNumerical;
2276 s32 rx_glbl_pram_offset, tx_glbl_pram_offset;
2277
2278 ugeth_vdbg("%s: IN", __func__);
2279 uccf = ugeth->uccf;
2280 ug_info = ugeth->ug_info;
2281 uf_info = &ug_info->uf_info;
2282 uf_regs = uccf->uf_regs;
2283 ug_regs = ugeth->ug_regs;
2284
2285 numThreadsRxNumerical = ucc_geth_thread_count(ug_info->numThreadsRx);
2286 if (!numThreadsRxNumerical) {
2287 if (netif_msg_ifup(ugeth))
2288 pr_err("Bad number of Rx threads value\n");
2289 return -EINVAL;
2290 }
2291
2292 numThreadsTxNumerical = ucc_geth_thread_count(ug_info->numThreadsTx);
2293 if (!numThreadsTxNumerical) {
2294 if (netif_msg_ifup(ugeth))
2295 pr_err("Bad number of Tx threads value\n");
2296 return -EINVAL;
2297 }
2298
2299 /* Calculate rx_extended_features */
2300 ugeth->rx_non_dynamic_extended_features = ug_info->ipCheckSumCheck ||
2301 ug_info->ipAddressAlignment ||
2302 (ug_info->numStationAddresses !=
2303 UCC_GETH_NUM_OF_STATION_ADDRESSES_1);
2304
2305 ugeth->rx_extended_features = ugeth->rx_non_dynamic_extended_features ||
2306 (ug_info->vlanOperationTagged != UCC_GETH_VLAN_OPERATION_TAGGED_NOP) ||
2307 (ug_info->vlanOperationNonTagged !=
2308 UCC_GETH_VLAN_OPERATION_NON_TAGGED_NOP);
2309
2310 init_default_reg_vals(&uf_regs->upsmr,
2311 &ug_regs->maccfg1, &ug_regs->maccfg2);
2312
2313 /* Set UPSMR */
2314 /* For more details see the hardware spec. */
2315 init_rx_parameters(ug_info->bro,
2316 ug_info->rsh, ug_info->pro, &uf_regs->upsmr);
2317
2318 /* We're going to ignore other registers for now, */
2319 /* except as needed to get up and running */
2320
2321 /* Set MACCFG1 */
2322 /* For more details see the hardware spec. */
2323 init_flow_control_params(ug_info->aufc,
2324 ug_info->receiveFlowControl,
2325 ug_info->transmitFlowControl,
2326 ug_info->pausePeriod,
2327 ug_info->extensionField,
2328 &uf_regs->upsmr,
2329 &ug_regs->uempr, &ug_regs->maccfg1);
2330
2331 setbits32(&ug_regs->maccfg1, MACCFG1_ENABLE_RX | MACCFG1_ENABLE_TX);
2332
2333 /* Set IPGIFG */
2334 /* For more details see the hardware spec. */
2335 ret_val = init_inter_frame_gap_params(ug_info->nonBackToBackIfgPart1,
2336 ug_info->nonBackToBackIfgPart2,
2337 ug_info->
2338 miminumInterFrameGapEnforcement,
2339 ug_info->backToBackInterFrameGap,
2340 &ug_regs->ipgifg);
2341 if (ret_val != 0) {
2342 if (netif_msg_ifup(ugeth))
2343 pr_err("IPGIFG initialization parameter too large\n");
2344 return ret_val;
2345 }
2346
2347 /* Set HAFDUP */
2348 /* For more details see the hardware spec. */
2349 ret_val = init_half_duplex_params(ug_info->altBeb,
2350 ug_info->backPressureNoBackoff,
2351 ug_info->noBackoff,
2352 ug_info->excessDefer,
2353 ug_info->altBebTruncation,
2354 ug_info->maxRetransmission,
2355 ug_info->collisionWindow,
2356 &ug_regs->hafdup);
2357 if (ret_val != 0) {
2358 if (netif_msg_ifup(ugeth))
2359 pr_err("Half Duplex initialization parameter too large\n");
2360 return ret_val;
2361 }
2362
2363 /* Set IFSTAT */
2364 /* For more details see the hardware spec. */
2365 /* Read only - resets upon read */
2366 ifstat = in_be32(&ug_regs->ifstat);
2367
2368 /* Clear UEMPR */
2369 /* For more details see the hardware spec. */
2370 out_be32(&ug_regs->uempr, 0);
2371
2372 /* Set UESCR */
2373 /* For more details see the hardware spec. */
2374 init_hw_statistics_gathering_mode((ug_info->statisticsMode &
2375 UCC_GETH_STATISTICS_GATHERING_MODE_HARDWARE),
2376 0, &uf_regs->upsmr, &ug_regs->uescr);
2377
2378 ret_val = ucc_geth_alloc_tx(ugeth);
2379 if (ret_val != 0)
2380 return ret_val;
2381
2382 ret_val = ucc_geth_alloc_rx(ugeth);
2383 if (ret_val != 0)
2384 return ret_val;
2385
2386 /*
2387 * Global PRAM
2388 */
2389 /* Tx global PRAM */
2390 /* Allocate global tx parameter RAM page */
2391 tx_glbl_pram_offset =
2392 qe_muram_alloc(sizeof(struct ucc_geth_tx_global_pram),
2393 UCC_GETH_TX_GLOBAL_PRAM_ALIGNMENT);
2394 if (tx_glbl_pram_offset < 0) {
2395 if (netif_msg_ifup(ugeth))
2396 pr_err("Can not allocate DPRAM memory for p_tx_glbl_pram\n");
2397 return -ENOMEM;
2398 }
2399 ugeth->p_tx_glbl_pram = qe_muram_addr(tx_glbl_pram_offset);
2400 /* Fill global PRAM */
2401
2402 /* TQPTR */
2403 /* Size varies with number of Tx threads */
2404 ugeth->thread_dat_tx_offset =
2405 qe_muram_alloc(numThreadsTxNumerical *
2406 sizeof(struct ucc_geth_thread_data_tx) +
2407 32 * (numThreadsTxNumerical == 1),
2408 UCC_GETH_THREAD_DATA_ALIGNMENT);
2409 if (IS_ERR_VALUE(ugeth->thread_dat_tx_offset)) {
2410 if (netif_msg_ifup(ugeth))
2411 pr_err("Can not allocate DPRAM memory for p_thread_data_tx\n");
2412 return -ENOMEM;
2413 }
2414
2415 ugeth->p_thread_data_tx =
2416 (struct ucc_geth_thread_data_tx __iomem *) qe_muram_addr(ugeth->
2417 thread_dat_tx_offset);
2418 out_be32(&ugeth->p_tx_glbl_pram->tqptr, ugeth->thread_dat_tx_offset);
2419
2420 /* vtagtable */
2421 for (i = 0; i < UCC_GETH_TX_VTAG_TABLE_ENTRY_MAX; i++)
2422 out_be32(&ugeth->p_tx_glbl_pram->vtagtable[i],
2423 ug_info->vtagtable[i]);
2424
2425 /* iphoffset */
2426 for (i = 0; i < TX_IP_OFFSET_ENTRY_MAX; i++)
2427 out_8(&ugeth->p_tx_glbl_pram->iphoffset[i],
2428 ug_info->iphoffset[i]);
2429
2430 /* SQPTR */
2431 /* Size varies with number of Tx queues */
2432 ugeth->send_q_mem_reg_offset =
2433 qe_muram_alloc(ucc_geth_tx_queues(ug_info) *
2434 sizeof(struct ucc_geth_send_queue_qd),
2435 UCC_GETH_SEND_QUEUE_QUEUE_DESCRIPTOR_ALIGNMENT);
2436 if (IS_ERR_VALUE(ugeth->send_q_mem_reg_offset)) {
2437 if (netif_msg_ifup(ugeth))
2438 pr_err("Can not allocate DPRAM memory for p_send_q_mem_reg\n");
2439 return -ENOMEM;
2440 }
2441
2442 ugeth->p_send_q_mem_reg =
2443 (struct ucc_geth_send_queue_mem_region __iomem *) qe_muram_addr(ugeth->
2444 send_q_mem_reg_offset);
2445 out_be32(&ugeth->p_tx_glbl_pram->sqptr, ugeth->send_q_mem_reg_offset);
2446
2447 /* Setup the table */
2448 /* Assume BD rings are already established */
2449 for (i = 0; i < ucc_geth_tx_queues(ug_info); i++) {
2450 endOfRing =
2451 ugeth->p_tx_bd_ring[i] + (ug_info->bdRingLenTx[i] -
2452 1) * sizeof(struct qe_bd);
2453 out_be32(&ugeth->p_send_q_mem_reg->sqqd[i].bd_ring_base,
2454 (u32) virt_to_phys(ugeth->p_tx_bd_ring[i]));
2455 out_be32(&ugeth->p_send_q_mem_reg->sqqd[i].
2456 last_bd_completed_address,
2457 (u32) virt_to_phys(endOfRing));
2458 }
2459
2460 /* schedulerbasepointer */
2461
2462 if (ucc_geth_tx_queues(ug_info) > 1) {
2463 /* scheduler exists only if more than 1 tx queue */
2464 ugeth->scheduler_offset =
2465 qe_muram_alloc(sizeof(struct ucc_geth_scheduler),
2466 UCC_GETH_SCHEDULER_ALIGNMENT);
2467 if (IS_ERR_VALUE(ugeth->scheduler_offset)) {
2468 if (netif_msg_ifup(ugeth))
2469 pr_err("Can not allocate DPRAM memory for p_scheduler\n");
2470 return -ENOMEM;
2471 }
2472
2473 ugeth->p_scheduler =
2474 (struct ucc_geth_scheduler __iomem *) qe_muram_addr(ugeth->
2475 scheduler_offset);
2476 out_be32(&ugeth->p_tx_glbl_pram->schedulerbasepointer,
2477 ugeth->scheduler_offset);
2478
2479 /* Set values in scheduler */
2480 out_be32(&ugeth->p_scheduler->mblinterval,
2481 ug_info->mblinterval);
2482 out_be16(&ugeth->p_scheduler->nortsrbytetime,
2483 ug_info->nortsrbytetime);
2484 out_8(&ugeth->p_scheduler->fracsiz, ug_info->fracsiz);
2485 out_8(&ugeth->p_scheduler->strictpriorityq,
2486 ug_info->strictpriorityq);
2487 out_8(&ugeth->p_scheduler->txasap, ug_info->txasap);
2488 out_8(&ugeth->p_scheduler->extrabw, ug_info->extrabw);
2489 for (i = 0; i < NUM_TX_QUEUES; i++)
2490 out_8(&ugeth->p_scheduler->weightfactor[i],
2491 ug_info->weightfactor[i]);
2492
2493 /* Set pointers to cpucount registers in scheduler */
2494 ugeth->p_cpucount[0] = &(ugeth->p_scheduler->cpucount0);
2495 ugeth->p_cpucount[1] = &(ugeth->p_scheduler->cpucount1);
2496 ugeth->p_cpucount[2] = &(ugeth->p_scheduler->cpucount2);
2497 ugeth->p_cpucount[3] = &(ugeth->p_scheduler->cpucount3);
2498 ugeth->p_cpucount[4] = &(ugeth->p_scheduler->cpucount4);
2499 ugeth->p_cpucount[5] = &(ugeth->p_scheduler->cpucount5);
2500 ugeth->p_cpucount[6] = &(ugeth->p_scheduler->cpucount6);
2501 ugeth->p_cpucount[7] = &(ugeth->p_scheduler->cpucount7);
2502 }
2503
2504 /* schedulerbasepointer */
2505 /* TxRMON_PTR (statistics) */
2506 if (ug_info->
2507 statisticsMode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_TX) {
2508 ugeth->tx_fw_statistics_pram_offset =
2509 qe_muram_alloc(sizeof
2510 (struct ucc_geth_tx_firmware_statistics_pram),
2511 UCC_GETH_TX_STATISTICS_ALIGNMENT);
2512 if (IS_ERR_VALUE(ugeth->tx_fw_statistics_pram_offset)) {
2513 if (netif_msg_ifup(ugeth))
2514 pr_err("Can not allocate DPRAM memory for p_tx_fw_statistics_pram\n");
2515 return -ENOMEM;
2516 }
2517 ugeth->p_tx_fw_statistics_pram =
2518 (struct ucc_geth_tx_firmware_statistics_pram __iomem *)
2519 qe_muram_addr(ugeth->tx_fw_statistics_pram_offset);
2520 }
2521
2522 /* temoder */
2523 /* Already has speed set */
2524
2525 if (ucc_geth_tx_queues(ug_info) > 1)
2526 temoder |= TEMODER_SCHEDULER_ENABLE;
2527 if (ug_info->ipCheckSumGenerate)
2528 temoder |= TEMODER_IP_CHECKSUM_GENERATE;
2529 temoder |= ((ucc_geth_tx_queues(ug_info) - 1) << TEMODER_NUM_OF_QUEUES_SHIFT);
2530 out_be16(&ugeth->p_tx_glbl_pram->temoder, temoder);
2531
2532 /* Function code register value to be used later */
2533 function_code = UCC_BMR_BO_BE | UCC_BMR_GBL;
2534 /* Required for QE */
2535
2536 /* function code register */
2537 out_be32(&ugeth->p_tx_glbl_pram->tstate, ((u32) function_code) << 24);
2538
2539 /* Rx global PRAM */
2540 /* Allocate global rx parameter RAM page */
2541 rx_glbl_pram_offset =
2542 qe_muram_alloc(sizeof(struct ucc_geth_rx_global_pram),
2543 UCC_GETH_RX_GLOBAL_PRAM_ALIGNMENT);
2544 if (rx_glbl_pram_offset < 0) {
2545 if (netif_msg_ifup(ugeth))
2546 pr_err("Can not allocate DPRAM memory for p_rx_glbl_pram\n");
2547 return -ENOMEM;
2548 }
2549 ugeth->p_rx_glbl_pram = qe_muram_addr(rx_glbl_pram_offset);
2550 /* Fill global PRAM */
2551
2552 /* RQPTR */
2553 /* Size varies with number of Rx threads */
2554 ugeth->thread_dat_rx_offset =
2555 qe_muram_alloc(numThreadsRxNumerical *
2556 sizeof(struct ucc_geth_thread_data_rx),
2557 UCC_GETH_THREAD_DATA_ALIGNMENT);
2558 if (IS_ERR_VALUE(ugeth->thread_dat_rx_offset)) {
2559 if (netif_msg_ifup(ugeth))
2560 pr_err("Can not allocate DPRAM memory for p_thread_data_rx\n");
2561 return -ENOMEM;
2562 }
2563
2564 ugeth->p_thread_data_rx =
2565 (struct ucc_geth_thread_data_rx __iomem *) qe_muram_addr(ugeth->
2566 thread_dat_rx_offset);
2567 out_be32(&ugeth->p_rx_glbl_pram->rqptr, ugeth->thread_dat_rx_offset);
2568
2569 /* typeorlen */
2570 out_be16(&ugeth->p_rx_glbl_pram->typeorlen, ug_info->typeorlen);
2571
2572 /* rxrmonbaseptr (statistics) */
2573 if (ug_info->
2574 statisticsMode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_RX) {
2575 ugeth->rx_fw_statistics_pram_offset =
2576 qe_muram_alloc(sizeof
2577 (struct ucc_geth_rx_firmware_statistics_pram),
2578 UCC_GETH_RX_STATISTICS_ALIGNMENT);
2579 if (IS_ERR_VALUE(ugeth->rx_fw_statistics_pram_offset)) {
2580 if (netif_msg_ifup(ugeth))
2581 pr_err("Can not allocate DPRAM memory for p_rx_fw_statistics_pram\n");
2582 return -ENOMEM;
2583 }
2584 ugeth->p_rx_fw_statistics_pram =
2585 (struct ucc_geth_rx_firmware_statistics_pram __iomem *)
2586 qe_muram_addr(ugeth->rx_fw_statistics_pram_offset);
2587 }
2588
2589 /* intCoalescingPtr */
2590
2591 /* Size varies with number of Rx queues */
2592 ugeth->rx_irq_coalescing_tbl_offset =
2593 qe_muram_alloc(ucc_geth_rx_queues(ug_info) *
2594 sizeof(struct ucc_geth_rx_interrupt_coalescing_entry)
2595 + 4, UCC_GETH_RX_INTERRUPT_COALESCING_ALIGNMENT);
2596 if (IS_ERR_VALUE(ugeth->rx_irq_coalescing_tbl_offset)) {
2597 if (netif_msg_ifup(ugeth))
2598 pr_err("Can not allocate DPRAM memory for p_rx_irq_coalescing_tbl\n");
2599 return -ENOMEM;
2600 }
2601
2602 ugeth->p_rx_irq_coalescing_tbl =
2603 (struct ucc_geth_rx_interrupt_coalescing_table __iomem *)
2604 qe_muram_addr(ugeth->rx_irq_coalescing_tbl_offset);
2605 out_be32(&ugeth->p_rx_glbl_pram->intcoalescingptr,
2606 ugeth->rx_irq_coalescing_tbl_offset);
2607
2608 /* Fill interrupt coalescing table */
2609 for (i = 0; i < ucc_geth_rx_queues(ug_info); i++) {
2610 out_be32(&ugeth->p_rx_irq_coalescing_tbl->coalescingentry[i].
2611 interruptcoalescingmaxvalue,
2612 ug_info->interruptcoalescingmaxvalue[i]);
2613 out_be32(&ugeth->p_rx_irq_coalescing_tbl->coalescingentry[i].
2614 interruptcoalescingcounter,
2615 ug_info->interruptcoalescingmaxvalue[i]);
2616 }
2617
2618 /* MRBLR */
2619 init_max_rx_buff_len(uf_info->max_rx_buf_length,
2620 &ugeth->p_rx_glbl_pram->mrblr);
2621 /* MFLR */
2622 out_be16(&ugeth->p_rx_glbl_pram->mflr, ug_info->maxFrameLength);
2623 /* MINFLR */
2624 init_min_frame_len(ug_info->minFrameLength,
2625 &ugeth->p_rx_glbl_pram->minflr,
2626 &ugeth->p_rx_glbl_pram->mrblr);
2627 /* MAXD1 */
2628 out_be16(&ugeth->p_rx_glbl_pram->maxd1, ug_info->maxD1Length);
2629 /* MAXD2 */
2630 out_be16(&ugeth->p_rx_glbl_pram->maxd2, ug_info->maxD2Length);
2631
2632 /* l2qt */
2633 l2qt = 0;
2634 for (i = 0; i < UCC_GETH_VLAN_PRIORITY_MAX; i++)
2635 l2qt |= (ug_info->l2qt[i] << (28 - 4 * i));
2636 out_be32(&ugeth->p_rx_glbl_pram->l2qt, l2qt);
2637
2638 /* l3qt */
2639 for (j = 0; j < UCC_GETH_IP_PRIORITY_MAX; j += 8) {
2640 l3qt = 0;
2641 for (i = 0; i < 8; i++)
2642 l3qt |= (ug_info->l3qt[j + i] << (28 - 4 * i));
2643 out_be32(&ugeth->p_rx_glbl_pram->l3qt[j/8], l3qt);
2644 }
2645
2646 /* vlantype */
2647 out_be16(&ugeth->p_rx_glbl_pram->vlantype, ug_info->vlantype);
2648
2649 /* vlantci */
2650 out_be16(&ugeth->p_rx_glbl_pram->vlantci, ug_info->vlantci);
2651
2652 /* ecamptr */
2653 out_be32(&ugeth->p_rx_glbl_pram->ecamptr, ug_info->ecamptr);
2654
2655 /* RBDQPTR */
2656 /* Size varies with number of Rx queues */
2657 ugeth->rx_bd_qs_tbl_offset =
2658 qe_muram_alloc(ucc_geth_rx_queues(ug_info) *
2659 (sizeof(struct ucc_geth_rx_bd_queues_entry) +
2660 sizeof(struct ucc_geth_rx_prefetched_bds)),
2661 UCC_GETH_RX_BD_QUEUES_ALIGNMENT);
2662 if (IS_ERR_VALUE(ugeth->rx_bd_qs_tbl_offset)) {
2663 if (netif_msg_ifup(ugeth))
2664 pr_err("Can not allocate DPRAM memory for p_rx_bd_qs_tbl\n");
2665 return -ENOMEM;
2666 }
2667
2668 ugeth->p_rx_bd_qs_tbl =
2669 (struct ucc_geth_rx_bd_queues_entry __iomem *) qe_muram_addr(ugeth->
2670 rx_bd_qs_tbl_offset);
2671 out_be32(&ugeth->p_rx_glbl_pram->rbdqptr, ugeth->rx_bd_qs_tbl_offset);
2672
2673 /* Setup the table */
2674 /* Assume BD rings are already established */
2675 for (i = 0; i < ucc_geth_rx_queues(ug_info); i++) {
2676 out_be32(&ugeth->p_rx_bd_qs_tbl[i].externalbdbaseptr,
2677 (u32) virt_to_phys(ugeth->p_rx_bd_ring[i]));
2678 /* rest of fields handled by QE */
2679 }
2680
2681 /* remoder */
2682 /* Already has speed set */
2683
2684 if (ugeth->rx_extended_features)
2685 remoder |= REMODER_RX_EXTENDED_FEATURES;
2686 if (ug_info->rxExtendedFiltering)
2687 remoder |= REMODER_RX_EXTENDED_FILTERING;
2688 if (ug_info->dynamicMaxFrameLength)
2689 remoder |= REMODER_DYNAMIC_MAX_FRAME_LENGTH;
2690 if (ug_info->dynamicMinFrameLength)
2691 remoder |= REMODER_DYNAMIC_MIN_FRAME_LENGTH;
2692 remoder |=
2693 ug_info->vlanOperationTagged << REMODER_VLAN_OPERATION_TAGGED_SHIFT;
2694 remoder |=
2695 ug_info->
2696 vlanOperationNonTagged << REMODER_VLAN_OPERATION_NON_TAGGED_SHIFT;
2697 remoder |= ug_info->rxQoSMode << REMODER_RX_QOS_MODE_SHIFT;
2698 remoder |= ((ucc_geth_rx_queues(ug_info) - 1) << REMODER_NUM_OF_QUEUES_SHIFT);
2699 if (ug_info->ipCheckSumCheck)
2700 remoder |= REMODER_IP_CHECKSUM_CHECK;
2701 if (ug_info->ipAddressAlignment)
2702 remoder |= REMODER_IP_ADDRESS_ALIGNMENT;
2703 out_be32(&ugeth->p_rx_glbl_pram->remoder, remoder);
2704
2705 /* Note that this function must be called */
2706 /* ONLY AFTER p_tx_fw_statistics_pram */
2707 /* andp_UccGethRxFirmwareStatisticsPram are allocated ! */
2708 init_firmware_statistics_gathering_mode((ug_info->
2709 statisticsMode &
2710 UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_TX),
2711 (ug_info->statisticsMode &
2712 UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_RX),
2713 &ugeth->p_tx_glbl_pram->txrmonbaseptr,
2714 ugeth->tx_fw_statistics_pram_offset,
2715 &ugeth->p_rx_glbl_pram->rxrmonbaseptr,
2716 ugeth->rx_fw_statistics_pram_offset,
2717 &ugeth->p_tx_glbl_pram->temoder,
2718 &ugeth->p_rx_glbl_pram->remoder);
2719
2720 /* function code register */
2721 out_8(&ugeth->p_rx_glbl_pram->rstate, function_code);
2722
2723 /* initialize extended filtering */
2724 if (ug_info->rxExtendedFiltering) {
2725 if (!ug_info->extendedFilteringChainPointer) {
2726 if (netif_msg_ifup(ugeth))
2727 pr_err("Null Extended Filtering Chain Pointer\n");
2728 return -EINVAL;
2729 }
2730
2731 /* Allocate memory for extended filtering Mode Global
2732 Parameters */
2733 ugeth->exf_glbl_param_offset =
2734 qe_muram_alloc(sizeof(struct ucc_geth_exf_global_pram),
2735 UCC_GETH_RX_EXTENDED_FILTERING_GLOBAL_PARAMETERS_ALIGNMENT);
2736 if (IS_ERR_VALUE(ugeth->exf_glbl_param_offset)) {
2737 if (netif_msg_ifup(ugeth))
2738 pr_err("Can not allocate DPRAM memory for p_exf_glbl_param\n");
2739 return -ENOMEM;
2740 }
2741
2742 ugeth->p_exf_glbl_param =
2743 (struct ucc_geth_exf_global_pram __iomem *) qe_muram_addr(ugeth->
2744 exf_glbl_param_offset);
2745 out_be32(&ugeth->p_rx_glbl_pram->exfGlobalParam,
2746 ugeth->exf_glbl_param_offset);
2747 out_be32(&ugeth->p_exf_glbl_param->l2pcdptr,
2748 (u32) ug_info->extendedFilteringChainPointer);
2749
2750 } else { /* initialize 82xx style address filtering */
2751
2752 /* Init individual address recognition registers to disabled */
2753
2754 for (j = 0; j < NUM_OF_PADDRS; j++)
2755 ugeth_82xx_filtering_clear_addr_in_paddr(ugeth, (u8) j);
2756
2757 p_82xx_addr_filt =
2758 (struct ucc_geth_82xx_address_filtering_pram __iomem *) ugeth->
2759 p_rx_glbl_pram->addressfiltering;
2760
2761 ugeth_82xx_filtering_clear_all_addr_in_hash(ugeth,
2762 ENET_ADDR_TYPE_GROUP);
2763 ugeth_82xx_filtering_clear_all_addr_in_hash(ugeth,
2764 ENET_ADDR_TYPE_INDIVIDUAL);
2765 }
2766
2767 /*
2768 * Initialize UCC at QE level
2769 */
2770
2771 command = QE_INIT_TX_RX;
2772
2773 /* Allocate shadow InitEnet command parameter structure.
2774 * This is needed because after the InitEnet command is executed,
2775 * the structure in DPRAM is released, because DPRAM is a premium
2776 * resource.
2777 * This shadow structure keeps a copy of what was done so that the
2778 * allocated resources can be released when the channel is freed.
2779 */
2780 if (!(ugeth->p_init_enet_param_shadow =
2781 kzalloc(sizeof(struct ucc_geth_init_pram), GFP_KERNEL))) {
2782 if (netif_msg_ifup(ugeth))
2783 pr_err("Can not allocate memory for p_UccInitEnetParamShadows\n");
2784 return -ENOMEM;
2785 }
2786
2787 /* Fill shadow InitEnet command parameter structure */
2788
2789 ugeth->p_init_enet_param_shadow->resinit1 =
2790 ENET_INIT_PARAM_MAGIC_RES_INIT1;
2791 ugeth->p_init_enet_param_shadow->resinit2 =
2792 ENET_INIT_PARAM_MAGIC_RES_INIT2;
2793 ugeth->p_init_enet_param_shadow->resinit3 =
2794 ENET_INIT_PARAM_MAGIC_RES_INIT3;
2795 ugeth->p_init_enet_param_shadow->resinit4 =
2796 ENET_INIT_PARAM_MAGIC_RES_INIT4;
2797 ugeth->p_init_enet_param_shadow->resinit5 =
2798 ENET_INIT_PARAM_MAGIC_RES_INIT5;
2799 ugeth->p_init_enet_param_shadow->rgftgfrxglobal |=
2800 ((u32) ug_info->numThreadsRx) << ENET_INIT_PARAM_RGF_SHIFT;
2801 ugeth->p_init_enet_param_shadow->rgftgfrxglobal |=
2802 ((u32) ug_info->numThreadsTx) << ENET_INIT_PARAM_TGF_SHIFT;
2803
2804 ugeth->p_init_enet_param_shadow->rgftgfrxglobal |=
2805 rx_glbl_pram_offset | ug_info->riscRx;
2806 if ((ug_info->largestexternallookupkeysize !=
2807 QE_FLTR_LARGEST_EXTERNAL_TABLE_LOOKUP_KEY_SIZE_NONE) &&
2808 (ug_info->largestexternallookupkeysize !=
2809 QE_FLTR_LARGEST_EXTERNAL_TABLE_LOOKUP_KEY_SIZE_8_BYTES) &&
2810 (ug_info->largestexternallookupkeysize !=
2811 QE_FLTR_LARGEST_EXTERNAL_TABLE_LOOKUP_KEY_SIZE_16_BYTES)) {
2812 if (netif_msg_ifup(ugeth))
2813 pr_err("Invalid largest External Lookup Key Size\n");
2814 return -EINVAL;
2815 }
2816 ugeth->p_init_enet_param_shadow->largestexternallookupkeysize =
2817 ug_info->largestexternallookupkeysize;
2818 size = sizeof(struct ucc_geth_thread_rx_pram);
2819 if (ug_info->rxExtendedFiltering) {
2820 size += THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING;
2821 if (ug_info->largestexternallookupkeysize ==
2822 QE_FLTR_LARGEST_EXTERNAL_TABLE_LOOKUP_KEY_SIZE_8_BYTES)
2823 size +=
2824 THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING_8;
2825 if (ug_info->largestexternallookupkeysize ==
2826 QE_FLTR_LARGEST_EXTERNAL_TABLE_LOOKUP_KEY_SIZE_16_BYTES)
2827 size +=
2828 THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING_16;
2829 }
2830
2831 if ((ret_val = fill_init_enet_entries(ugeth, &(ugeth->
2832 p_init_enet_param_shadow->rxthread[0]),
2833 (u8) (numThreadsRxNumerical + 1)
2834 /* Rx needs one extra for terminator */
2835 , size, UCC_GETH_THREAD_RX_PRAM_ALIGNMENT,
2836 ug_info->riscRx, 1)) != 0) {
2837 if (netif_msg_ifup(ugeth))
2838 pr_err("Can not fill p_init_enet_param_shadow\n");
2839 return ret_val;
2840 }
2841
2842 ugeth->p_init_enet_param_shadow->txglobal =
2843 tx_glbl_pram_offset | ug_info->riscTx;
2844 if ((ret_val =
2845 fill_init_enet_entries(ugeth,
2846 &(ugeth->p_init_enet_param_shadow->
2847 txthread[0]), numThreadsTxNumerical,
2848 sizeof(struct ucc_geth_thread_tx_pram),
2849 UCC_GETH_THREAD_TX_PRAM_ALIGNMENT,
2850 ug_info->riscTx, 0)) != 0) {
2851 if (netif_msg_ifup(ugeth))
2852 pr_err("Can not fill p_init_enet_param_shadow\n");
2853 return ret_val;
2854 }
2855
2856 /* Load Rx bds with buffers */
2857 for (i = 0; i < ucc_geth_rx_queues(ug_info); i++) {
2858 if ((ret_val = rx_bd_buffer_set(ugeth, (u8) i)) != 0) {
2859 if (netif_msg_ifup(ugeth))
2860 pr_err("Can not fill Rx bds with buffers\n");
2861 return ret_val;
2862 }
2863 }
2864
2865 /* Allocate InitEnet command parameter structure */
2866 init_enet_pram_offset = qe_muram_alloc(sizeof(struct ucc_geth_init_pram), 4);
2867 if (IS_ERR_VALUE(init_enet_pram_offset)) {
2868 if (netif_msg_ifup(ugeth))
2869 pr_err("Can not allocate DPRAM memory for p_init_enet_pram\n");
2870 return -ENOMEM;
2871 }
2872 p_init_enet_pram =
2873 (struct ucc_geth_init_pram __iomem *) qe_muram_addr(init_enet_pram_offset);
2874
2875 /* Copy shadow InitEnet command parameter structure into PRAM */
2876 out_8(&p_init_enet_pram->resinit1,
2877 ugeth->p_init_enet_param_shadow->resinit1);
2878 out_8(&p_init_enet_pram->resinit2,
2879 ugeth->p_init_enet_param_shadow->resinit2);
2880 out_8(&p_init_enet_pram->resinit3,
2881 ugeth->p_init_enet_param_shadow->resinit3);
2882 out_8(&p_init_enet_pram->resinit4,
2883 ugeth->p_init_enet_param_shadow->resinit4);
2884 out_be16(&p_init_enet_pram->resinit5,
2885 ugeth->p_init_enet_param_shadow->resinit5);
2886 out_8(&p_init_enet_pram->largestexternallookupkeysize,
2887 ugeth->p_init_enet_param_shadow->largestexternallookupkeysize);
2888 out_be32(&p_init_enet_pram->rgftgfrxglobal,
2889 ugeth->p_init_enet_param_shadow->rgftgfrxglobal);
2890 for (i = 0; i < ENET_INIT_PARAM_MAX_ENTRIES_RX; i++)
2891 out_be32(&p_init_enet_pram->rxthread[i],
2892 ugeth->p_init_enet_param_shadow->rxthread[i]);
2893 out_be32(&p_init_enet_pram->txglobal,
2894 ugeth->p_init_enet_param_shadow->txglobal);
2895 for (i = 0; i < ENET_INIT_PARAM_MAX_ENTRIES_TX; i++)
2896 out_be32(&p_init_enet_pram->txthread[i],
2897 ugeth->p_init_enet_param_shadow->txthread[i]);
2898
2899 /* Issue QE command */
2900 cecr_subblock =
2901 ucc_fast_get_qe_cr_subblock(ugeth->ug_info->uf_info.ucc_num);
2902 qe_issue_cmd(command, cecr_subblock, QE_CR_PROTOCOL_ETHERNET,
2903 init_enet_pram_offset);
2904
2905 /* Free InitEnet command parameter */
2906 qe_muram_free(init_enet_pram_offset);
2907
2908 return 0;
2909}
2910
2911/* This is called by the kernel when a frame is ready for transmission. */
2912/* It is pointed to by the dev->hard_start_xmit function pointer */
2913static netdev_tx_t
2914ucc_geth_start_xmit(struct sk_buff *skb, struct net_device *dev)
2915{
2916 struct ucc_geth_private *ugeth = netdev_priv(dev);
2917#ifdef CONFIG_UGETH_TX_ON_DEMAND
2918 struct ucc_fast_private *uccf;
2919#endif
2920 u8 __iomem *bd; /* BD pointer */
2921 u32 bd_status;
2922 u8 txQ = 0;
2923 unsigned long flags;
2924
2925 ugeth_vdbg("%s: IN", __func__);
2926
2927 netdev_sent_queue(dev, skb->len);
2928 spin_lock_irqsave(&ugeth->lock, flags);
2929
2930 dev->stats.tx_bytes += skb->len;
2931
2932 /* Start from the next BD that should be filled */
2933 bd = ugeth->txBd[txQ];
2934 bd_status = in_be32((u32 __iomem *)bd);
2935 /* Save the skb pointer so we can free it later */
2936 ugeth->tx_skbuff[txQ][ugeth->skb_curtx[txQ]] = skb;
2937
2938 /* Update the current skb pointer (wrapping if this was the last) */
2939 ugeth->skb_curtx[txQ] =
2940 (ugeth->skb_curtx[txQ] +
2941 1) & TX_RING_MOD_MASK(ugeth->ug_info->bdRingLenTx[txQ]);
2942
2943 /* set up the buffer descriptor */
2944 out_be32(&((struct qe_bd __iomem *)bd)->buf,
2945 dma_map_single(ugeth->dev, skb->data,
2946 skb->len, DMA_TO_DEVICE));
2947
2948 /* printk(KERN_DEBUG"skb->data is 0x%x\n",skb->data); */
2949
2950 bd_status = (bd_status & T_W) | T_R | T_I | T_L | skb->len;
2951
2952 /* set bd status and length */
2953 out_be32((u32 __iomem *)bd, bd_status);
2954
2955 /* Move to next BD in the ring */
2956 if (!(bd_status & T_W))
2957 bd += sizeof(struct qe_bd);
2958 else
2959 bd = ugeth->p_tx_bd_ring[txQ];
2960
2961 /* If the next BD still needs to be cleaned up, then the bds
2962 are full. We need to tell the kernel to stop sending us stuff. */
2963 if (bd == ugeth->confBd[txQ]) {
2964 if (!netif_queue_stopped(dev))
2965 netif_stop_queue(dev);
2966 }
2967
2968 ugeth->txBd[txQ] = bd;
2969
2970 skb_tx_timestamp(skb);
2971
2972 if (ugeth->p_scheduler) {
2973 ugeth->cpucount[txQ]++;
2974 /* Indicate to QE that there are more Tx bds ready for
2975 transmission */
2976 /* This is done by writing a running counter of the bd
2977 count to the scheduler PRAM. */
2978 out_be16(ugeth->p_cpucount[txQ], ugeth->cpucount[txQ]);
2979 }
2980
2981#ifdef CONFIG_UGETH_TX_ON_DEMAND
2982 uccf = ugeth->uccf;
2983 out_be16(uccf->p_utodr, UCC_FAST_TOD);
2984#endif
2985 spin_unlock_irqrestore(&ugeth->lock, flags);
2986
2987 return NETDEV_TX_OK;
2988}
2989
2990static int ucc_geth_rx(struct ucc_geth_private *ugeth, u8 rxQ, int rx_work_limit)
2991{
2992 struct sk_buff *skb;
2993 u8 __iomem *bd;
2994 u16 length, howmany = 0;
2995 u32 bd_status;
2996 u8 *bdBuffer;
2997 struct net_device *dev;
2998
2999 ugeth_vdbg("%s: IN", __func__);
3000
3001 dev = ugeth->ndev;
3002
3003 /* collect received buffers */
3004 bd = ugeth->rxBd[rxQ];
3005
3006 bd_status = in_be32((u32 __iomem *)bd);
3007
3008 /* while there are received buffers and BD is full (~R_E) */
3009 while (!((bd_status & (R_E)) || (--rx_work_limit < 0))) {
3010 bdBuffer = (u8 *) in_be32(&((struct qe_bd __iomem *)bd)->buf);
3011 length = (u16) ((bd_status & BD_LENGTH_MASK) - 4);
3012 skb = ugeth->rx_skbuff[rxQ][ugeth->skb_currx[rxQ]];
3013
3014 /* determine whether buffer is first, last, first and last
3015 (single buffer frame) or middle (not first and not last) */
3016 if (!skb ||
3017 (!(bd_status & (R_F | R_L))) ||
3018 (bd_status & R_ERRORS_FATAL)) {
3019 if (netif_msg_rx_err(ugeth))
3020 pr_err("%d: ERROR!!! skb - 0x%08x\n",
3021 __LINE__, (u32)skb);
3022 dev_kfree_skb(skb);
3023
3024 ugeth->rx_skbuff[rxQ][ugeth->skb_currx[rxQ]] = NULL;
3025 dev->stats.rx_dropped++;
3026 } else {
3027 dev->stats.rx_packets++;
3028 howmany++;
3029
3030 /* Prep the skb for the packet */
3031 skb_put(skb, length);
3032
3033 /* Tell the skb what kind of packet this is */
3034 skb->protocol = eth_type_trans(skb, ugeth->ndev);
3035
3036 dev->stats.rx_bytes += length;
3037 /* Send the packet up the stack */
3038 netif_receive_skb(skb);
3039 }
3040
3041 skb = get_new_skb(ugeth, bd);
3042 if (!skb) {
3043 if (netif_msg_rx_err(ugeth))
3044 pr_warn("No Rx Data Buffer\n");
3045 dev->stats.rx_dropped++;
3046 break;
3047 }
3048
3049 ugeth->rx_skbuff[rxQ][ugeth->skb_currx[rxQ]] = skb;
3050
3051 /* update to point at the next skb */
3052 ugeth->skb_currx[rxQ] =
3053 (ugeth->skb_currx[rxQ] +
3054 1) & RX_RING_MOD_MASK(ugeth->ug_info->bdRingLenRx[rxQ]);
3055
3056 if (bd_status & R_W)
3057 bd = ugeth->p_rx_bd_ring[rxQ];
3058 else
3059 bd += sizeof(struct qe_bd);
3060
3061 bd_status = in_be32((u32 __iomem *)bd);
3062 }
3063
3064 ugeth->rxBd[rxQ] = bd;
3065 return howmany;
3066}
3067
3068static int ucc_geth_tx(struct net_device *dev, u8 txQ)
3069{
3070 /* Start from the next BD that should be filled */
3071 struct ucc_geth_private *ugeth = netdev_priv(dev);
3072 unsigned int bytes_sent = 0;
3073 int howmany = 0;
3074 u8 __iomem *bd; /* BD pointer */
3075 u32 bd_status;
3076
3077 bd = ugeth->confBd[txQ];
3078 bd_status = in_be32((u32 __iomem *)bd);
3079
3080 /* Normal processing. */
3081 while ((bd_status & T_R) == 0) {
3082 struct sk_buff *skb;
3083
3084 /* BD contains already transmitted buffer. */
3085 /* Handle the transmitted buffer and release */
3086 /* the BD to be used with the current frame */
3087
3088 skb = ugeth->tx_skbuff[txQ][ugeth->skb_dirtytx[txQ]];
3089 if (!skb)
3090 break;
3091 howmany++;
3092 bytes_sent += skb->len;
3093 dev->stats.tx_packets++;
3094
3095 dev_consume_skb_any(skb);
3096
3097 ugeth->tx_skbuff[txQ][ugeth->skb_dirtytx[txQ]] = NULL;
3098 ugeth->skb_dirtytx[txQ] =
3099 (ugeth->skb_dirtytx[txQ] +
3100 1) & TX_RING_MOD_MASK(ugeth->ug_info->bdRingLenTx[txQ]);
3101
3102 /* We freed a buffer, so now we can restart transmission */
3103 if (netif_queue_stopped(dev))
3104 netif_wake_queue(dev);
3105
3106 /* Advance the confirmation BD pointer */
3107 if (!(bd_status & T_W))
3108 bd += sizeof(struct qe_bd);
3109 else
3110 bd = ugeth->p_tx_bd_ring[txQ];
3111 bd_status = in_be32((u32 __iomem *)bd);
3112 }
3113 ugeth->confBd[txQ] = bd;
3114 netdev_completed_queue(dev, howmany, bytes_sent);
3115 return 0;
3116}
3117
3118static int ucc_geth_poll(struct napi_struct *napi, int budget)
3119{
3120 struct ucc_geth_private *ugeth = container_of(napi, struct ucc_geth_private, napi);
3121 struct ucc_geth_info *ug_info;
3122 int howmany, i;
3123
3124 ug_info = ugeth->ug_info;
3125
3126 /* Tx event processing */
3127 spin_lock(&ugeth->lock);
3128 for (i = 0; i < ucc_geth_tx_queues(ug_info); i++)
3129 ucc_geth_tx(ugeth->ndev, i);
3130 spin_unlock(&ugeth->lock);
3131
3132 howmany = 0;
3133 for (i = 0; i < ucc_geth_rx_queues(ug_info); i++)
3134 howmany += ucc_geth_rx(ugeth, i, budget - howmany);
3135
3136 if (howmany < budget) {
3137 napi_complete_done(napi, howmany);
3138 setbits32(ugeth->uccf->p_uccm, UCCE_RX_EVENTS | UCCE_TX_EVENTS);
3139 }
3140
3141 return howmany;
3142}
3143
3144static irqreturn_t ucc_geth_irq_handler(int irq, void *info)
3145{
3146 struct net_device *dev = info;
3147 struct ucc_geth_private *ugeth = netdev_priv(dev);
3148 struct ucc_fast_private *uccf;
3149 struct ucc_geth_info *ug_info;
3150 register u32 ucce;
3151 register u32 uccm;
3152
3153 ugeth_vdbg("%s: IN", __func__);
3154
3155 uccf = ugeth->uccf;
3156 ug_info = ugeth->ug_info;
3157
3158 /* read and clear events */
3159 ucce = (u32) in_be32(uccf->p_ucce);
3160 uccm = (u32) in_be32(uccf->p_uccm);
3161 ucce &= uccm;
3162 out_be32(uccf->p_ucce, ucce);
3163
3164 /* check for receive events that require processing */
3165 if (ucce & (UCCE_RX_EVENTS | UCCE_TX_EVENTS)) {
3166 if (napi_schedule_prep(&ugeth->napi)) {
3167 uccm &= ~(UCCE_RX_EVENTS | UCCE_TX_EVENTS);
3168 out_be32(uccf->p_uccm, uccm);
3169 __napi_schedule(&ugeth->napi);
3170 }
3171 }
3172
3173 /* Errors and other events */
3174 if (ucce & UCCE_OTHER) {
3175 if (ucce & UCC_GETH_UCCE_BSY)
3176 dev->stats.rx_errors++;
3177 if (ucce & UCC_GETH_UCCE_TXE)
3178 dev->stats.tx_errors++;
3179 }
3180
3181 return IRQ_HANDLED;
3182}
3183
3184#ifdef CONFIG_NET_POLL_CONTROLLER
3185/*
3186 * Polling 'interrupt' - used by things like netconsole to send skbs
3187 * without having to re-enable interrupts. It's not called while
3188 * the interrupt routine is executing.
3189 */
3190static void ucc_netpoll(struct net_device *dev)
3191{
3192 struct ucc_geth_private *ugeth = netdev_priv(dev);
3193 int irq = ugeth->ug_info->uf_info.irq;
3194
3195 disable_irq(irq);
3196 ucc_geth_irq_handler(irq, dev);
3197 enable_irq(irq);
3198}
3199#endif /* CONFIG_NET_POLL_CONTROLLER */
3200
3201static int ucc_geth_set_mac_addr(struct net_device *dev, void *p)
3202{
3203 struct ucc_geth_private *ugeth = netdev_priv(dev);
3204 struct sockaddr *addr = p;
3205
3206 if (!is_valid_ether_addr(addr->sa_data))
3207 return -EADDRNOTAVAIL;
3208
3209 eth_hw_addr_set(dev, addr->sa_data);
3210
3211 /*
3212 * If device is not running, we will set mac addr register
3213 * when opening the device.
3214 */
3215 if (!netif_running(dev))
3216 return 0;
3217
3218 spin_lock_irq(&ugeth->lock);
3219 init_mac_station_addr_regs(dev->dev_addr[0],
3220 dev->dev_addr[1],
3221 dev->dev_addr[2],
3222 dev->dev_addr[3],
3223 dev->dev_addr[4],
3224 dev->dev_addr[5],
3225 &ugeth->ug_regs->macstnaddr1,
3226 &ugeth->ug_regs->macstnaddr2);
3227 spin_unlock_irq(&ugeth->lock);
3228
3229 return 0;
3230}
3231
3232static int ucc_geth_init_mac(struct ucc_geth_private *ugeth)
3233{
3234 struct net_device *dev = ugeth->ndev;
3235 int err;
3236
3237 err = ucc_struct_init(ugeth);
3238 if (err) {
3239 netif_err(ugeth, ifup, dev, "Cannot configure internal struct, aborting\n");
3240 goto err;
3241 }
3242
3243 err = ucc_geth_startup(ugeth);
3244 if (err) {
3245 netif_err(ugeth, ifup, dev, "Cannot configure net device, aborting\n");
3246 goto err;
3247 }
3248
3249 err = adjust_enet_interface(ugeth);
3250 if (err) {
3251 netif_err(ugeth, ifup, dev, "Cannot configure net device, aborting\n");
3252 goto err;
3253 }
3254
3255 /* Set MACSTNADDR1, MACSTNADDR2 */
3256 /* For more details see the hardware spec. */
3257 init_mac_station_addr_regs(dev->dev_addr[0],
3258 dev->dev_addr[1],
3259 dev->dev_addr[2],
3260 dev->dev_addr[3],
3261 dev->dev_addr[4],
3262 dev->dev_addr[5],
3263 &ugeth->ug_regs->macstnaddr1,
3264 &ugeth->ug_regs->macstnaddr2);
3265
3266 err = ugeth_enable(ugeth, COMM_DIR_RX_AND_TX);
3267 if (err) {
3268 netif_err(ugeth, ifup, dev, "Cannot enable net device, aborting\n");
3269 goto err;
3270 }
3271
3272 return 0;
3273err:
3274 ucc_geth_stop(ugeth);
3275 return err;
3276}
3277
3278/* Called when something needs to use the ethernet device */
3279/* Returns 0 for success. */
3280static int ucc_geth_open(struct net_device *dev)
3281{
3282 struct ucc_geth_private *ugeth = netdev_priv(dev);
3283 int err;
3284
3285 ugeth_vdbg("%s: IN", __func__);
3286
3287 /* Test station address */
3288 if (dev->dev_addr[0] & ENET_GROUP_ADDR) {
3289 netif_err(ugeth, ifup, dev,
3290 "Multicast address used for station address - is this what you wanted?\n");
3291 return -EINVAL;
3292 }
3293
3294 err = init_phy(dev);
3295 if (err) {
3296 netif_err(ugeth, ifup, dev, "Cannot initialize PHY, aborting\n");
3297 return err;
3298 }
3299
3300 err = ucc_geth_init_mac(ugeth);
3301 if (err) {
3302 netif_err(ugeth, ifup, dev, "Cannot initialize MAC, aborting\n");
3303 goto err;
3304 }
3305
3306 err = request_irq(ugeth->ug_info->uf_info.irq, ucc_geth_irq_handler,
3307 0, "UCC Geth", dev);
3308 if (err) {
3309 netif_err(ugeth, ifup, dev, "Cannot get IRQ for net device, aborting\n");
3310 goto err;
3311 }
3312
3313 phy_start(ugeth->phydev);
3314 napi_enable(&ugeth->napi);
3315 netdev_reset_queue(dev);
3316 netif_start_queue(dev);
3317
3318 device_set_wakeup_capable(&dev->dev,
3319 qe_alive_during_sleep() || ugeth->phydev->irq);
3320 device_set_wakeup_enable(&dev->dev, ugeth->wol_en);
3321
3322 return err;
3323
3324err:
3325 ucc_geth_stop(ugeth);
3326 return err;
3327}
3328
3329/* Stops the kernel queue, and halts the controller */
3330static int ucc_geth_close(struct net_device *dev)
3331{
3332 struct ucc_geth_private *ugeth = netdev_priv(dev);
3333
3334 ugeth_vdbg("%s: IN", __func__);
3335
3336 napi_disable(&ugeth->napi);
3337
3338 cancel_work_sync(&ugeth->timeout_work);
3339 ucc_geth_stop(ugeth);
3340 phy_disconnect(ugeth->phydev);
3341 ugeth->phydev = NULL;
3342
3343 free_irq(ugeth->ug_info->uf_info.irq, ugeth->ndev);
3344
3345 netif_stop_queue(dev);
3346 netdev_reset_queue(dev);
3347
3348 return 0;
3349}
3350
3351/* Reopen device. This will reset the MAC and PHY. */
3352static void ucc_geth_timeout_work(struct work_struct *work)
3353{
3354 struct ucc_geth_private *ugeth;
3355 struct net_device *dev;
3356
3357 ugeth = container_of(work, struct ucc_geth_private, timeout_work);
3358 dev = ugeth->ndev;
3359
3360 ugeth_vdbg("%s: IN", __func__);
3361
3362 dev->stats.tx_errors++;
3363
3364 ugeth_dump_regs(ugeth);
3365
3366 if (dev->flags & IFF_UP) {
3367 /*
3368 * Must reset MAC *and* PHY. This is done by reopening
3369 * the device.
3370 */
3371 netif_tx_stop_all_queues(dev);
3372 ucc_geth_stop(ugeth);
3373 ucc_geth_init_mac(ugeth);
3374 /* Must start PHY here */
3375 phy_start(ugeth->phydev);
3376 netif_tx_start_all_queues(dev);
3377 }
3378
3379 netif_tx_schedule_all(dev);
3380}
3381
3382/*
3383 * ucc_geth_timeout gets called when a packet has not been
3384 * transmitted after a set amount of time.
3385 */
3386static void ucc_geth_timeout(struct net_device *dev, unsigned int txqueue)
3387{
3388 struct ucc_geth_private *ugeth = netdev_priv(dev);
3389
3390 schedule_work(&ugeth->timeout_work);
3391}
3392
3393
3394#ifdef CONFIG_PM
3395
3396static int ucc_geth_suspend(struct platform_device *ofdev, pm_message_t state)
3397{
3398 struct net_device *ndev = platform_get_drvdata(ofdev);
3399 struct ucc_geth_private *ugeth = netdev_priv(ndev);
3400
3401 if (!netif_running(ndev))
3402 return 0;
3403
3404 netif_device_detach(ndev);
3405 napi_disable(&ugeth->napi);
3406
3407 /*
3408 * Disable the controller, otherwise we'll wakeup on any network
3409 * activity.
3410 */
3411 ugeth_disable(ugeth, COMM_DIR_RX_AND_TX);
3412
3413 if (ugeth->wol_en & WAKE_MAGIC) {
3414 setbits32(ugeth->uccf->p_uccm, UCC_GETH_UCCE_MPD);
3415 setbits32(&ugeth->ug_regs->maccfg2, MACCFG2_MPE);
3416 ucc_fast_enable(ugeth->uccf, COMM_DIR_RX_AND_TX);
3417 } else if (!(ugeth->wol_en & WAKE_PHY)) {
3418 phy_stop(ugeth->phydev);
3419 }
3420
3421 return 0;
3422}
3423
3424static int ucc_geth_resume(struct platform_device *ofdev)
3425{
3426 struct net_device *ndev = platform_get_drvdata(ofdev);
3427 struct ucc_geth_private *ugeth = netdev_priv(ndev);
3428 int err;
3429
3430 if (!netif_running(ndev))
3431 return 0;
3432
3433 if (qe_alive_during_sleep()) {
3434 if (ugeth->wol_en & WAKE_MAGIC) {
3435 ucc_fast_disable(ugeth->uccf, COMM_DIR_RX_AND_TX);
3436 clrbits32(&ugeth->ug_regs->maccfg2, MACCFG2_MPE);
3437 clrbits32(ugeth->uccf->p_uccm, UCC_GETH_UCCE_MPD);
3438 }
3439 ugeth_enable(ugeth, COMM_DIR_RX_AND_TX);
3440 } else {
3441 /*
3442 * Full reinitialization is required if QE shuts down
3443 * during sleep.
3444 */
3445 ucc_geth_memclean(ugeth);
3446
3447 err = ucc_geth_init_mac(ugeth);
3448 if (err) {
3449 netdev_err(ndev, "Cannot initialize MAC, aborting\n");
3450 return err;
3451 }
3452 }
3453
3454 ugeth->oldlink = 0;
3455 ugeth->oldspeed = 0;
3456 ugeth->oldduplex = -1;
3457
3458 phy_stop(ugeth->phydev);
3459 phy_start(ugeth->phydev);
3460
3461 napi_enable(&ugeth->napi);
3462 netif_device_attach(ndev);
3463
3464 return 0;
3465}
3466
3467#else
3468#define ucc_geth_suspend NULL
3469#define ucc_geth_resume NULL
3470#endif
3471
3472static phy_interface_t to_phy_interface(const char *phy_connection_type)
3473{
3474 if (strcasecmp(phy_connection_type, "mii") == 0)
3475 return PHY_INTERFACE_MODE_MII;
3476 if (strcasecmp(phy_connection_type, "gmii") == 0)
3477 return PHY_INTERFACE_MODE_GMII;
3478 if (strcasecmp(phy_connection_type, "tbi") == 0)
3479 return PHY_INTERFACE_MODE_TBI;
3480 if (strcasecmp(phy_connection_type, "rmii") == 0)
3481 return PHY_INTERFACE_MODE_RMII;
3482 if (strcasecmp(phy_connection_type, "rgmii") == 0)
3483 return PHY_INTERFACE_MODE_RGMII;
3484 if (strcasecmp(phy_connection_type, "rgmii-id") == 0)
3485 return PHY_INTERFACE_MODE_RGMII_ID;
3486 if (strcasecmp(phy_connection_type, "rgmii-txid") == 0)
3487 return PHY_INTERFACE_MODE_RGMII_TXID;
3488 if (strcasecmp(phy_connection_type, "rgmii-rxid") == 0)
3489 return PHY_INTERFACE_MODE_RGMII_RXID;
3490 if (strcasecmp(phy_connection_type, "rtbi") == 0)
3491 return PHY_INTERFACE_MODE_RTBI;
3492 if (strcasecmp(phy_connection_type, "sgmii") == 0)
3493 return PHY_INTERFACE_MODE_SGMII;
3494
3495 return PHY_INTERFACE_MODE_MII;
3496}
3497
3498static int ucc_geth_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
3499{
3500 struct ucc_geth_private *ugeth = netdev_priv(dev);
3501
3502 if (!netif_running(dev))
3503 return -EINVAL;
3504
3505 if (!ugeth->phydev)
3506 return -ENODEV;
3507
3508 return phy_mii_ioctl(ugeth->phydev, rq, cmd);
3509}
3510
3511static const struct net_device_ops ucc_geth_netdev_ops = {
3512 .ndo_open = ucc_geth_open,
3513 .ndo_stop = ucc_geth_close,
3514 .ndo_start_xmit = ucc_geth_start_xmit,
3515 .ndo_validate_addr = eth_validate_addr,
3516 .ndo_change_carrier = fixed_phy_change_carrier,
3517 .ndo_set_mac_address = ucc_geth_set_mac_addr,
3518 .ndo_set_rx_mode = ucc_geth_set_multi,
3519 .ndo_tx_timeout = ucc_geth_timeout,
3520 .ndo_eth_ioctl = ucc_geth_ioctl,
3521#ifdef CONFIG_NET_POLL_CONTROLLER
3522 .ndo_poll_controller = ucc_netpoll,
3523#endif
3524};
3525
3526static int ucc_geth_parse_clock(struct device_node *np, const char *which,
3527 enum qe_clock *out)
3528{
3529 const char *sprop;
3530 char buf[24];
3531
3532 snprintf(buf, sizeof(buf), "%s-clock-name", which);
3533 sprop = of_get_property(np, buf, NULL);
3534 if (sprop) {
3535 *out = qe_clock_source(sprop);
3536 } else {
3537 u32 val;
3538
3539 snprintf(buf, sizeof(buf), "%s-clock", which);
3540 if (of_property_read_u32(np, buf, &val)) {
3541 /* If both *-clock-name and *-clock are missing,
3542 * we want to tell people to use *-clock-name.
3543 */
3544 pr_err("missing %s-clock-name property\n", buf);
3545 return -EINVAL;
3546 }
3547 *out = val;
3548 }
3549 if (*out < QE_CLK_NONE || *out > QE_CLK24) {
3550 pr_err("invalid %s property\n", buf);
3551 return -EINVAL;
3552 }
3553 return 0;
3554}
3555
3556static int ucc_geth_probe(struct platform_device* ofdev)
3557{
3558 struct device *device = &ofdev->dev;
3559 struct device_node *np = ofdev->dev.of_node;
3560 struct net_device *dev = NULL;
3561 struct ucc_geth_private *ugeth = NULL;
3562 struct ucc_geth_info *ug_info;
3563 struct resource res;
3564 int err, ucc_num, max_speed = 0;
3565 const unsigned int *prop;
3566 phy_interface_t phy_interface;
3567 static const int enet_to_speed[] = {
3568 SPEED_10, SPEED_10, SPEED_10,
3569 SPEED_100, SPEED_100, SPEED_100,
3570 SPEED_1000, SPEED_1000, SPEED_1000, SPEED_1000,
3571 };
3572 static const phy_interface_t enet_to_phy_interface[] = {
3573 PHY_INTERFACE_MODE_MII, PHY_INTERFACE_MODE_RMII,
3574 PHY_INTERFACE_MODE_RGMII, PHY_INTERFACE_MODE_MII,
3575 PHY_INTERFACE_MODE_RMII, PHY_INTERFACE_MODE_RGMII,
3576 PHY_INTERFACE_MODE_GMII, PHY_INTERFACE_MODE_RGMII,
3577 PHY_INTERFACE_MODE_TBI, PHY_INTERFACE_MODE_RTBI,
3578 PHY_INTERFACE_MODE_SGMII,
3579 };
3580
3581 ugeth_vdbg("%s: IN", __func__);
3582
3583 prop = of_get_property(np, "cell-index", NULL);
3584 if (!prop) {
3585 prop = of_get_property(np, "device-id", NULL);
3586 if (!prop)
3587 return -ENODEV;
3588 }
3589
3590 ucc_num = *prop - 1;
3591 if ((ucc_num < 0) || (ucc_num > 7))
3592 return -ENODEV;
3593
3594 ug_info = kmemdup(&ugeth_primary_info, sizeof(*ug_info), GFP_KERNEL);
3595 if (ug_info == NULL)
3596 return -ENOMEM;
3597
3598 ug_info->uf_info.ucc_num = ucc_num;
3599
3600 err = ucc_geth_parse_clock(np, "rx", &ug_info->uf_info.rx_clock);
3601 if (err)
3602 goto err_free_info;
3603 err = ucc_geth_parse_clock(np, "tx", &ug_info->uf_info.tx_clock);
3604 if (err)
3605 goto err_free_info;
3606
3607 err = of_address_to_resource(np, 0, &res);
3608 if (err)
3609 goto err_free_info;
3610
3611 ug_info->uf_info.regs = res.start;
3612 ug_info->uf_info.irq = irq_of_parse_and_map(np, 0);
3613
3614 ug_info->phy_node = of_parse_phandle(np, "phy-handle", 0);
3615 if (!ug_info->phy_node && of_phy_is_fixed_link(np)) {
3616 /*
3617 * In the case of a fixed PHY, the DT node associated
3618 * to the PHY is the Ethernet MAC DT node.
3619 */
3620 err = of_phy_register_fixed_link(np);
3621 if (err)
3622 goto err_free_info;
3623 ug_info->phy_node = of_node_get(np);
3624 }
3625
3626 /* Find the TBI PHY node. If it's not there, we don't support SGMII */
3627 ug_info->tbi_node = of_parse_phandle(np, "tbi-handle", 0);
3628
3629 /* get the phy interface type, or default to MII */
3630 prop = of_get_property(np, "phy-connection-type", NULL);
3631 if (!prop) {
3632 /* handle interface property present in old trees */
3633 prop = of_get_property(ug_info->phy_node, "interface", NULL);
3634 if (prop != NULL) {
3635 phy_interface = enet_to_phy_interface[*prop];
3636 max_speed = enet_to_speed[*prop];
3637 } else
3638 phy_interface = PHY_INTERFACE_MODE_MII;
3639 } else {
3640 phy_interface = to_phy_interface((const char *)prop);
3641 }
3642
3643 /* get speed, or derive from PHY interface */
3644 if (max_speed == 0)
3645 switch (phy_interface) {
3646 case PHY_INTERFACE_MODE_GMII:
3647 case PHY_INTERFACE_MODE_RGMII:
3648 case PHY_INTERFACE_MODE_RGMII_ID:
3649 case PHY_INTERFACE_MODE_RGMII_RXID:
3650 case PHY_INTERFACE_MODE_RGMII_TXID:
3651 case PHY_INTERFACE_MODE_TBI:
3652 case PHY_INTERFACE_MODE_RTBI:
3653 case PHY_INTERFACE_MODE_SGMII:
3654 max_speed = SPEED_1000;
3655 break;
3656 default:
3657 max_speed = SPEED_100;
3658 break;
3659 }
3660
3661 if (max_speed == SPEED_1000) {
3662 unsigned int snums = qe_get_num_of_snums();
3663
3664 /* configure muram FIFOs for gigabit operation */
3665 ug_info->uf_info.urfs = UCC_GETH_URFS_GIGA_INIT;
3666 ug_info->uf_info.urfet = UCC_GETH_URFET_GIGA_INIT;
3667 ug_info->uf_info.urfset = UCC_GETH_URFSET_GIGA_INIT;
3668 ug_info->uf_info.utfs = UCC_GETH_UTFS_GIGA_INIT;
3669 ug_info->uf_info.utfet = UCC_GETH_UTFET_GIGA_INIT;
3670 ug_info->uf_info.utftt = UCC_GETH_UTFTT_GIGA_INIT;
3671 ug_info->numThreadsTx = UCC_GETH_NUM_OF_THREADS_4;
3672
3673 /* If QE's snum number is 46/76 which means we need to support
3674 * 4 UECs at 1000Base-T simultaneously, we need to allocate
3675 * more Threads to Rx.
3676 */
3677 if ((snums == 76) || (snums == 46))
3678 ug_info->numThreadsRx = UCC_GETH_NUM_OF_THREADS_6;
3679 else
3680 ug_info->numThreadsRx = UCC_GETH_NUM_OF_THREADS_4;
3681 }
3682
3683 if (netif_msg_probe(&debug))
3684 pr_info("UCC%1d at 0x%8llx (irq = %d)\n",
3685 ug_info->uf_info.ucc_num + 1,
3686 (u64)ug_info->uf_info.regs,
3687 ug_info->uf_info.irq);
3688
3689 /* Create an ethernet device instance */
3690 dev = alloc_etherdev(sizeof(*ugeth));
3691
3692 if (dev == NULL) {
3693 err = -ENOMEM;
3694 goto err_deregister_fixed_link;
3695 }
3696
3697 ugeth = netdev_priv(dev);
3698 spin_lock_init(&ugeth->lock);
3699
3700 /* Create CQs for hash tables */
3701 INIT_LIST_HEAD(&ugeth->group_hash_q);
3702 INIT_LIST_HEAD(&ugeth->ind_hash_q);
3703
3704 dev_set_drvdata(device, dev);
3705
3706 /* Set the dev->base_addr to the gfar reg region */
3707 dev->base_addr = (unsigned long)(ug_info->uf_info.regs);
3708
3709 SET_NETDEV_DEV(dev, device);
3710
3711 /* Fill in the dev structure */
3712 uec_set_ethtool_ops(dev);
3713 dev->netdev_ops = &ucc_geth_netdev_ops;
3714 dev->watchdog_timeo = TX_TIMEOUT;
3715 INIT_WORK(&ugeth->timeout_work, ucc_geth_timeout_work);
3716 netif_napi_add(dev, &ugeth->napi, ucc_geth_poll);
3717 dev->mtu = 1500;
3718 dev->max_mtu = 1518;
3719
3720 ugeth->msg_enable = netif_msg_init(debug.msg_enable, UGETH_MSG_DEFAULT);
3721 ugeth->phy_interface = phy_interface;
3722 ugeth->max_speed = max_speed;
3723
3724 /* Carrier starts down, phylib will bring it up */
3725 netif_carrier_off(dev);
3726
3727 err = register_netdev(dev);
3728 if (err) {
3729 if (netif_msg_probe(ugeth))
3730 pr_err("%s: Cannot register net device, aborting\n",
3731 dev->name);
3732 goto err_free_netdev;
3733 }
3734
3735 of_get_ethdev_address(np, dev);
3736
3737 ugeth->ug_info = ug_info;
3738 ugeth->dev = device;
3739 ugeth->ndev = dev;
3740 ugeth->node = np;
3741
3742 return 0;
3743
3744err_free_netdev:
3745 free_netdev(dev);
3746err_deregister_fixed_link:
3747 if (of_phy_is_fixed_link(np))
3748 of_phy_deregister_fixed_link(np);
3749 of_node_put(ug_info->tbi_node);
3750 of_node_put(ug_info->phy_node);
3751err_free_info:
3752 kfree(ug_info);
3753
3754 return err;
3755}
3756
3757static void ucc_geth_remove(struct platform_device* ofdev)
3758{
3759 struct net_device *dev = platform_get_drvdata(ofdev);
3760 struct ucc_geth_private *ugeth = netdev_priv(dev);
3761 struct device_node *np = ofdev->dev.of_node;
3762
3763 unregister_netdev(dev);
3764 ucc_geth_memclean(ugeth);
3765 if (of_phy_is_fixed_link(np))
3766 of_phy_deregister_fixed_link(np);
3767 of_node_put(ugeth->ug_info->tbi_node);
3768 of_node_put(ugeth->ug_info->phy_node);
3769 kfree(ugeth->ug_info);
3770 free_netdev(dev);
3771}
3772
3773static const struct of_device_id ucc_geth_match[] = {
3774 {
3775 .type = "network",
3776 .compatible = "ucc_geth",
3777 },
3778 {},
3779};
3780
3781MODULE_DEVICE_TABLE(of, ucc_geth_match);
3782
3783static struct platform_driver ucc_geth_driver = {
3784 .driver = {
3785 .name = DRV_NAME,
3786 .of_match_table = ucc_geth_match,
3787 },
3788 .probe = ucc_geth_probe,
3789 .remove_new = ucc_geth_remove,
3790 .suspend = ucc_geth_suspend,
3791 .resume = ucc_geth_resume,
3792};
3793
3794static int __init ucc_geth_init(void)
3795{
3796 if (netif_msg_drv(&debug))
3797 pr_info(DRV_DESC "\n");
3798
3799 return platform_driver_register(&ucc_geth_driver);
3800}
3801
3802static void __exit ucc_geth_exit(void)
3803{
3804 platform_driver_unregister(&ucc_geth_driver);
3805}
3806
3807module_init(ucc_geth_init);
3808module_exit(ucc_geth_exit);
3809
3810MODULE_AUTHOR("Freescale Semiconductor, Inc");
3811MODULE_DESCRIPTION(DRV_DESC);
3812MODULE_LICENSE("GPL");
1/*
2 * Copyright (C) 2006-2009 Freescale Semicondutor, Inc. All rights reserved.
3 *
4 * Author: Shlomi Gridish <gridish@freescale.com>
5 * Li Yang <leoli@freescale.com>
6 *
7 * Description:
8 * QE UCC Gigabit Ethernet Driver
9 *
10 * This program is free software; you can redistribute it and/or modify it
11 * under the terms of the GNU General Public License as published by the
12 * Free Software Foundation; either version 2 of the License, or (at your
13 * option) any later version.
14 */
15
16#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
17
18#include <linux/kernel.h>
19#include <linux/init.h>
20#include <linux/errno.h>
21#include <linux/slab.h>
22#include <linux/stddef.h>
23#include <linux/module.h>
24#include <linux/interrupt.h>
25#include <linux/netdevice.h>
26#include <linux/etherdevice.h>
27#include <linux/skbuff.h>
28#include <linux/spinlock.h>
29#include <linux/mm.h>
30#include <linux/dma-mapping.h>
31#include <linux/mii.h>
32#include <linux/phy.h>
33#include <linux/workqueue.h>
34#include <linux/of_address.h>
35#include <linux/of_irq.h>
36#include <linux/of_mdio.h>
37#include <linux/of_net.h>
38#include <linux/of_platform.h>
39
40#include <linux/uaccess.h>
41#include <asm/irq.h>
42#include <asm/io.h>
43#include <soc/fsl/qe/immap_qe.h>
44#include <soc/fsl/qe/qe.h>
45#include <soc/fsl/qe/ucc.h>
46#include <soc/fsl/qe/ucc_fast.h>
47#include <asm/machdep.h>
48
49#include "ucc_geth.h"
50
51#undef DEBUG
52
53#define ugeth_printk(level, format, arg...) \
54 printk(level format "\n", ## arg)
55
56#define ugeth_dbg(format, arg...) \
57 ugeth_printk(KERN_DEBUG , format , ## arg)
58
59#ifdef UGETH_VERBOSE_DEBUG
60#define ugeth_vdbg ugeth_dbg
61#else
62#define ugeth_vdbg(fmt, args...) do { } while (0)
63#endif /* UGETH_VERBOSE_DEBUG */
64#define UGETH_MSG_DEFAULT (NETIF_MSG_IFUP << 1 ) - 1
65
66
67static DEFINE_SPINLOCK(ugeth_lock);
68
69static struct {
70 u32 msg_enable;
71} debug = { -1 };
72
73module_param_named(debug, debug.msg_enable, int, 0);
74MODULE_PARM_DESC(debug, "Debug verbosity level (0=none, ..., 0xffff=all)");
75
76static struct ucc_geth_info ugeth_primary_info = {
77 .uf_info = {
78 .bd_mem_part = MEM_PART_SYSTEM,
79 .rtsm = UCC_FAST_SEND_IDLES_BETWEEN_FRAMES,
80 .max_rx_buf_length = 1536,
81 /* adjusted at startup if max-speed 1000 */
82 .urfs = UCC_GETH_URFS_INIT,
83 .urfet = UCC_GETH_URFET_INIT,
84 .urfset = UCC_GETH_URFSET_INIT,
85 .utfs = UCC_GETH_UTFS_INIT,
86 .utfet = UCC_GETH_UTFET_INIT,
87 .utftt = UCC_GETH_UTFTT_INIT,
88 .ufpt = 256,
89 .mode = UCC_FAST_PROTOCOL_MODE_ETHERNET,
90 .ttx_trx = UCC_FAST_GUMR_TRANSPARENT_TTX_TRX_NORMAL,
91 .tenc = UCC_FAST_TX_ENCODING_NRZ,
92 .renc = UCC_FAST_RX_ENCODING_NRZ,
93 .tcrc = UCC_FAST_16_BIT_CRC,
94 .synl = UCC_FAST_SYNC_LEN_NOT_USED,
95 },
96 .numQueuesTx = 1,
97 .numQueuesRx = 1,
98 .extendedFilteringChainPointer = ((uint32_t) NULL),
99 .typeorlen = 3072 /*1536 */ ,
100 .nonBackToBackIfgPart1 = 0x40,
101 .nonBackToBackIfgPart2 = 0x60,
102 .miminumInterFrameGapEnforcement = 0x50,
103 .backToBackInterFrameGap = 0x60,
104 .mblinterval = 128,
105 .nortsrbytetime = 5,
106 .fracsiz = 1,
107 .strictpriorityq = 0xff,
108 .altBebTruncation = 0xa,
109 .excessDefer = 1,
110 .maxRetransmission = 0xf,
111 .collisionWindow = 0x37,
112 .receiveFlowControl = 1,
113 .transmitFlowControl = 1,
114 .maxGroupAddrInHash = 4,
115 .maxIndAddrInHash = 4,
116 .prel = 7,
117 .maxFrameLength = 1518+16, /* Add extra bytes for VLANs etc. */
118 .minFrameLength = 64,
119 .maxD1Length = 1520+16, /* Add extra bytes for VLANs etc. */
120 .maxD2Length = 1520+16, /* Add extra bytes for VLANs etc. */
121 .vlantype = 0x8100,
122 .ecamptr = ((uint32_t) NULL),
123 .eventRegMask = UCCE_OTHER,
124 .pausePeriod = 0xf000,
125 .interruptcoalescingmaxvalue = {1, 1, 1, 1, 1, 1, 1, 1},
126 .bdRingLenTx = {
127 TX_BD_RING_LEN,
128 TX_BD_RING_LEN,
129 TX_BD_RING_LEN,
130 TX_BD_RING_LEN,
131 TX_BD_RING_LEN,
132 TX_BD_RING_LEN,
133 TX_BD_RING_LEN,
134 TX_BD_RING_LEN},
135
136 .bdRingLenRx = {
137 RX_BD_RING_LEN,
138 RX_BD_RING_LEN,
139 RX_BD_RING_LEN,
140 RX_BD_RING_LEN,
141 RX_BD_RING_LEN,
142 RX_BD_RING_LEN,
143 RX_BD_RING_LEN,
144 RX_BD_RING_LEN},
145
146 .numStationAddresses = UCC_GETH_NUM_OF_STATION_ADDRESSES_1,
147 .largestexternallookupkeysize =
148 QE_FLTR_LARGEST_EXTERNAL_TABLE_LOOKUP_KEY_SIZE_NONE,
149 .statisticsMode = UCC_GETH_STATISTICS_GATHERING_MODE_HARDWARE |
150 UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_TX |
151 UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_RX,
152 .vlanOperationTagged = UCC_GETH_VLAN_OPERATION_TAGGED_NOP,
153 .vlanOperationNonTagged = UCC_GETH_VLAN_OPERATION_NON_TAGGED_NOP,
154 .rxQoSMode = UCC_GETH_QOS_MODE_DEFAULT,
155 .aufc = UPSMR_AUTOMATIC_FLOW_CONTROL_MODE_NONE,
156 .padAndCrc = MACCFG2_PAD_AND_CRC_MODE_PAD_AND_CRC,
157 .numThreadsTx = UCC_GETH_NUM_OF_THREADS_1,
158 .numThreadsRx = UCC_GETH_NUM_OF_THREADS_1,
159 .riscTx = QE_RISC_ALLOCATION_RISC1_AND_RISC2,
160 .riscRx = QE_RISC_ALLOCATION_RISC1_AND_RISC2,
161};
162
163static struct ucc_geth_info ugeth_info[8];
164
165#ifdef DEBUG
166static void mem_disp(u8 *addr, int size)
167{
168 u8 *i;
169 int size16Aling = (size >> 4) << 4;
170 int size4Aling = (size >> 2) << 2;
171 int notAlign = 0;
172 if (size % 16)
173 notAlign = 1;
174
175 for (i = addr; (u32) i < (u32) addr + size16Aling; i += 16)
176 printk("0x%08x: %08x %08x %08x %08x\r\n",
177 (u32) i,
178 *((u32 *) (i)),
179 *((u32 *) (i + 4)),
180 *((u32 *) (i + 8)), *((u32 *) (i + 12)));
181 if (notAlign == 1)
182 printk("0x%08x: ", (u32) i);
183 for (; (u32) i < (u32) addr + size4Aling; i += 4)
184 printk("%08x ", *((u32 *) (i)));
185 for (; (u32) i < (u32) addr + size; i++)
186 printk("%02x", *((i)));
187 if (notAlign == 1)
188 printk("\r\n");
189}
190#endif /* DEBUG */
191
192static struct list_head *dequeue(struct list_head *lh)
193{
194 unsigned long flags;
195
196 spin_lock_irqsave(&ugeth_lock, flags);
197 if (!list_empty(lh)) {
198 struct list_head *node = lh->next;
199 list_del(node);
200 spin_unlock_irqrestore(&ugeth_lock, flags);
201 return node;
202 } else {
203 spin_unlock_irqrestore(&ugeth_lock, flags);
204 return NULL;
205 }
206}
207
208static struct sk_buff *get_new_skb(struct ucc_geth_private *ugeth,
209 u8 __iomem *bd)
210{
211 struct sk_buff *skb;
212
213 skb = netdev_alloc_skb(ugeth->ndev,
214 ugeth->ug_info->uf_info.max_rx_buf_length +
215 UCC_GETH_RX_DATA_BUF_ALIGNMENT);
216 if (!skb)
217 return NULL;
218
219 /* We need the data buffer to be aligned properly. We will reserve
220 * as many bytes as needed to align the data properly
221 */
222 skb_reserve(skb,
223 UCC_GETH_RX_DATA_BUF_ALIGNMENT -
224 (((unsigned)skb->data) & (UCC_GETH_RX_DATA_BUF_ALIGNMENT -
225 1)));
226
227 out_be32(&((struct qe_bd __iomem *)bd)->buf,
228 dma_map_single(ugeth->dev,
229 skb->data,
230 ugeth->ug_info->uf_info.max_rx_buf_length +
231 UCC_GETH_RX_DATA_BUF_ALIGNMENT,
232 DMA_FROM_DEVICE));
233
234 out_be32((u32 __iomem *)bd,
235 (R_E | R_I | (in_be32((u32 __iomem*)bd) & R_W)));
236
237 return skb;
238}
239
240static int rx_bd_buffer_set(struct ucc_geth_private *ugeth, u8 rxQ)
241{
242 u8 __iomem *bd;
243 u32 bd_status;
244 struct sk_buff *skb;
245 int i;
246
247 bd = ugeth->p_rx_bd_ring[rxQ];
248 i = 0;
249
250 do {
251 bd_status = in_be32((u32 __iomem *)bd);
252 skb = get_new_skb(ugeth, bd);
253
254 if (!skb) /* If can not allocate data buffer,
255 abort. Cleanup will be elsewhere */
256 return -ENOMEM;
257
258 ugeth->rx_skbuff[rxQ][i] = skb;
259
260 /* advance the BD pointer */
261 bd += sizeof(struct qe_bd);
262 i++;
263 } while (!(bd_status & R_W));
264
265 return 0;
266}
267
268static int fill_init_enet_entries(struct ucc_geth_private *ugeth,
269 u32 *p_start,
270 u8 num_entries,
271 u32 thread_size,
272 u32 thread_alignment,
273 unsigned int risc,
274 int skip_page_for_first_entry)
275{
276 u32 init_enet_offset;
277 u8 i;
278 int snum;
279
280 for (i = 0; i < num_entries; i++) {
281 if ((snum = qe_get_snum()) < 0) {
282 if (netif_msg_ifup(ugeth))
283 pr_err("Can not get SNUM\n");
284 return snum;
285 }
286 if ((i == 0) && skip_page_for_first_entry)
287 /* First entry of Rx does not have page */
288 init_enet_offset = 0;
289 else {
290 init_enet_offset =
291 qe_muram_alloc(thread_size, thread_alignment);
292 if (IS_ERR_VALUE(init_enet_offset)) {
293 if (netif_msg_ifup(ugeth))
294 pr_err("Can not allocate DPRAM memory\n");
295 qe_put_snum((u8) snum);
296 return -ENOMEM;
297 }
298 }
299 *(p_start++) =
300 ((u8) snum << ENET_INIT_PARAM_SNUM_SHIFT) | init_enet_offset
301 | risc;
302 }
303
304 return 0;
305}
306
307static int return_init_enet_entries(struct ucc_geth_private *ugeth,
308 u32 *p_start,
309 u8 num_entries,
310 unsigned int risc,
311 int skip_page_for_first_entry)
312{
313 u32 init_enet_offset;
314 u8 i;
315 int snum;
316
317 for (i = 0; i < num_entries; i++) {
318 u32 val = *p_start;
319
320 /* Check that this entry was actually valid --
321 needed in case failed in allocations */
322 if ((val & ENET_INIT_PARAM_RISC_MASK) == risc) {
323 snum =
324 (u32) (val & ENET_INIT_PARAM_SNUM_MASK) >>
325 ENET_INIT_PARAM_SNUM_SHIFT;
326 qe_put_snum((u8) snum);
327 if (!((i == 0) && skip_page_for_first_entry)) {
328 /* First entry of Rx does not have page */
329 init_enet_offset =
330 (val & ENET_INIT_PARAM_PTR_MASK);
331 qe_muram_free(init_enet_offset);
332 }
333 *p_start++ = 0;
334 }
335 }
336
337 return 0;
338}
339
340#ifdef DEBUG
341static int dump_init_enet_entries(struct ucc_geth_private *ugeth,
342 u32 __iomem *p_start,
343 u8 num_entries,
344 u32 thread_size,
345 unsigned int risc,
346 int skip_page_for_first_entry)
347{
348 u32 init_enet_offset;
349 u8 i;
350 int snum;
351
352 for (i = 0; i < num_entries; i++) {
353 u32 val = in_be32(p_start);
354
355 /* Check that this entry was actually valid --
356 needed in case failed in allocations */
357 if ((val & ENET_INIT_PARAM_RISC_MASK) == risc) {
358 snum =
359 (u32) (val & ENET_INIT_PARAM_SNUM_MASK) >>
360 ENET_INIT_PARAM_SNUM_SHIFT;
361 qe_put_snum((u8) snum);
362 if (!((i == 0) && skip_page_for_first_entry)) {
363 /* First entry of Rx does not have page */
364 init_enet_offset =
365 (in_be32(p_start) &
366 ENET_INIT_PARAM_PTR_MASK);
367 pr_info("Init enet entry %d:\n", i);
368 pr_info("Base address: 0x%08x\n",
369 (u32)qe_muram_addr(init_enet_offset));
370 mem_disp(qe_muram_addr(init_enet_offset),
371 thread_size);
372 }
373 p_start++;
374 }
375 }
376
377 return 0;
378}
379#endif
380
381static void put_enet_addr_container(struct enet_addr_container *enet_addr_cont)
382{
383 kfree(enet_addr_cont);
384}
385
386static void set_mac_addr(__be16 __iomem *reg, u8 *mac)
387{
388 out_be16(®[0], ((u16)mac[5] << 8) | mac[4]);
389 out_be16(®[1], ((u16)mac[3] << 8) | mac[2]);
390 out_be16(®[2], ((u16)mac[1] << 8) | mac[0]);
391}
392
393static int hw_clear_addr_in_paddr(struct ucc_geth_private *ugeth, u8 paddr_num)
394{
395 struct ucc_geth_82xx_address_filtering_pram __iomem *p_82xx_addr_filt;
396
397 if (paddr_num >= NUM_OF_PADDRS) {
398 pr_warn("%s: Invalid paddr_num: %u\n", __func__, paddr_num);
399 return -EINVAL;
400 }
401
402 p_82xx_addr_filt =
403 (struct ucc_geth_82xx_address_filtering_pram __iomem *) ugeth->p_rx_glbl_pram->
404 addressfiltering;
405
406 /* Writing address ff.ff.ff.ff.ff.ff disables address
407 recognition for this register */
408 out_be16(&p_82xx_addr_filt->paddr[paddr_num].h, 0xffff);
409 out_be16(&p_82xx_addr_filt->paddr[paddr_num].m, 0xffff);
410 out_be16(&p_82xx_addr_filt->paddr[paddr_num].l, 0xffff);
411
412 return 0;
413}
414
415static void hw_add_addr_in_hash(struct ucc_geth_private *ugeth,
416 u8 *p_enet_addr)
417{
418 struct ucc_geth_82xx_address_filtering_pram __iomem *p_82xx_addr_filt;
419 u32 cecr_subblock;
420
421 p_82xx_addr_filt =
422 (struct ucc_geth_82xx_address_filtering_pram __iomem *) ugeth->p_rx_glbl_pram->
423 addressfiltering;
424
425 cecr_subblock =
426 ucc_fast_get_qe_cr_subblock(ugeth->ug_info->uf_info.ucc_num);
427
428 /* Ethernet frames are defined in Little Endian mode,
429 therefore to insert */
430 /* the address to the hash (Big Endian mode), we reverse the bytes.*/
431
432 set_mac_addr(&p_82xx_addr_filt->taddr.h, p_enet_addr);
433
434 qe_issue_cmd(QE_SET_GROUP_ADDRESS, cecr_subblock,
435 QE_CR_PROTOCOL_ETHERNET, 0);
436}
437
438#ifdef DEBUG
439static void get_statistics(struct ucc_geth_private *ugeth,
440 struct ucc_geth_tx_firmware_statistics *
441 tx_firmware_statistics,
442 struct ucc_geth_rx_firmware_statistics *
443 rx_firmware_statistics,
444 struct ucc_geth_hardware_statistics *hardware_statistics)
445{
446 struct ucc_fast __iomem *uf_regs;
447 struct ucc_geth __iomem *ug_regs;
448 struct ucc_geth_tx_firmware_statistics_pram *p_tx_fw_statistics_pram;
449 struct ucc_geth_rx_firmware_statistics_pram *p_rx_fw_statistics_pram;
450
451 ug_regs = ugeth->ug_regs;
452 uf_regs = (struct ucc_fast __iomem *) ug_regs;
453 p_tx_fw_statistics_pram = ugeth->p_tx_fw_statistics_pram;
454 p_rx_fw_statistics_pram = ugeth->p_rx_fw_statistics_pram;
455
456 /* Tx firmware only if user handed pointer and driver actually
457 gathers Tx firmware statistics */
458 if (tx_firmware_statistics && p_tx_fw_statistics_pram) {
459 tx_firmware_statistics->sicoltx =
460 in_be32(&p_tx_fw_statistics_pram->sicoltx);
461 tx_firmware_statistics->mulcoltx =
462 in_be32(&p_tx_fw_statistics_pram->mulcoltx);
463 tx_firmware_statistics->latecoltxfr =
464 in_be32(&p_tx_fw_statistics_pram->latecoltxfr);
465 tx_firmware_statistics->frabortduecol =
466 in_be32(&p_tx_fw_statistics_pram->frabortduecol);
467 tx_firmware_statistics->frlostinmactxer =
468 in_be32(&p_tx_fw_statistics_pram->frlostinmactxer);
469 tx_firmware_statistics->carriersenseertx =
470 in_be32(&p_tx_fw_statistics_pram->carriersenseertx);
471 tx_firmware_statistics->frtxok =
472 in_be32(&p_tx_fw_statistics_pram->frtxok);
473 tx_firmware_statistics->txfrexcessivedefer =
474 in_be32(&p_tx_fw_statistics_pram->txfrexcessivedefer);
475 tx_firmware_statistics->txpkts256 =
476 in_be32(&p_tx_fw_statistics_pram->txpkts256);
477 tx_firmware_statistics->txpkts512 =
478 in_be32(&p_tx_fw_statistics_pram->txpkts512);
479 tx_firmware_statistics->txpkts1024 =
480 in_be32(&p_tx_fw_statistics_pram->txpkts1024);
481 tx_firmware_statistics->txpktsjumbo =
482 in_be32(&p_tx_fw_statistics_pram->txpktsjumbo);
483 }
484
485 /* Rx firmware only if user handed pointer and driver actually
486 * gathers Rx firmware statistics */
487 if (rx_firmware_statistics && p_rx_fw_statistics_pram) {
488 int i;
489 rx_firmware_statistics->frrxfcser =
490 in_be32(&p_rx_fw_statistics_pram->frrxfcser);
491 rx_firmware_statistics->fraligner =
492 in_be32(&p_rx_fw_statistics_pram->fraligner);
493 rx_firmware_statistics->inrangelenrxer =
494 in_be32(&p_rx_fw_statistics_pram->inrangelenrxer);
495 rx_firmware_statistics->outrangelenrxer =
496 in_be32(&p_rx_fw_statistics_pram->outrangelenrxer);
497 rx_firmware_statistics->frtoolong =
498 in_be32(&p_rx_fw_statistics_pram->frtoolong);
499 rx_firmware_statistics->runt =
500 in_be32(&p_rx_fw_statistics_pram->runt);
501 rx_firmware_statistics->verylongevent =
502 in_be32(&p_rx_fw_statistics_pram->verylongevent);
503 rx_firmware_statistics->symbolerror =
504 in_be32(&p_rx_fw_statistics_pram->symbolerror);
505 rx_firmware_statistics->dropbsy =
506 in_be32(&p_rx_fw_statistics_pram->dropbsy);
507 for (i = 0; i < 0x8; i++)
508 rx_firmware_statistics->res0[i] =
509 p_rx_fw_statistics_pram->res0[i];
510 rx_firmware_statistics->mismatchdrop =
511 in_be32(&p_rx_fw_statistics_pram->mismatchdrop);
512 rx_firmware_statistics->underpkts =
513 in_be32(&p_rx_fw_statistics_pram->underpkts);
514 rx_firmware_statistics->pkts256 =
515 in_be32(&p_rx_fw_statistics_pram->pkts256);
516 rx_firmware_statistics->pkts512 =
517 in_be32(&p_rx_fw_statistics_pram->pkts512);
518 rx_firmware_statistics->pkts1024 =
519 in_be32(&p_rx_fw_statistics_pram->pkts1024);
520 rx_firmware_statistics->pktsjumbo =
521 in_be32(&p_rx_fw_statistics_pram->pktsjumbo);
522 rx_firmware_statistics->frlossinmacer =
523 in_be32(&p_rx_fw_statistics_pram->frlossinmacer);
524 rx_firmware_statistics->pausefr =
525 in_be32(&p_rx_fw_statistics_pram->pausefr);
526 for (i = 0; i < 0x4; i++)
527 rx_firmware_statistics->res1[i] =
528 p_rx_fw_statistics_pram->res1[i];
529 rx_firmware_statistics->removevlan =
530 in_be32(&p_rx_fw_statistics_pram->removevlan);
531 rx_firmware_statistics->replacevlan =
532 in_be32(&p_rx_fw_statistics_pram->replacevlan);
533 rx_firmware_statistics->insertvlan =
534 in_be32(&p_rx_fw_statistics_pram->insertvlan);
535 }
536
537 /* Hardware only if user handed pointer and driver actually
538 gathers hardware statistics */
539 if (hardware_statistics &&
540 (in_be32(&uf_regs->upsmr) & UCC_GETH_UPSMR_HSE)) {
541 hardware_statistics->tx64 = in_be32(&ug_regs->tx64);
542 hardware_statistics->tx127 = in_be32(&ug_regs->tx127);
543 hardware_statistics->tx255 = in_be32(&ug_regs->tx255);
544 hardware_statistics->rx64 = in_be32(&ug_regs->rx64);
545 hardware_statistics->rx127 = in_be32(&ug_regs->rx127);
546 hardware_statistics->rx255 = in_be32(&ug_regs->rx255);
547 hardware_statistics->txok = in_be32(&ug_regs->txok);
548 hardware_statistics->txcf = in_be16(&ug_regs->txcf);
549 hardware_statistics->tmca = in_be32(&ug_regs->tmca);
550 hardware_statistics->tbca = in_be32(&ug_regs->tbca);
551 hardware_statistics->rxfok = in_be32(&ug_regs->rxfok);
552 hardware_statistics->rxbok = in_be32(&ug_regs->rxbok);
553 hardware_statistics->rbyt = in_be32(&ug_regs->rbyt);
554 hardware_statistics->rmca = in_be32(&ug_regs->rmca);
555 hardware_statistics->rbca = in_be32(&ug_regs->rbca);
556 }
557}
558
559static void dump_bds(struct ucc_geth_private *ugeth)
560{
561 int i;
562 int length;
563
564 for (i = 0; i < ugeth->ug_info->numQueuesTx; i++) {
565 if (ugeth->p_tx_bd_ring[i]) {
566 length =
567 (ugeth->ug_info->bdRingLenTx[i] *
568 sizeof(struct qe_bd));
569 pr_info("TX BDs[%d]\n", i);
570 mem_disp(ugeth->p_tx_bd_ring[i], length);
571 }
572 }
573 for (i = 0; i < ugeth->ug_info->numQueuesRx; i++) {
574 if (ugeth->p_rx_bd_ring[i]) {
575 length =
576 (ugeth->ug_info->bdRingLenRx[i] *
577 sizeof(struct qe_bd));
578 pr_info("RX BDs[%d]\n", i);
579 mem_disp(ugeth->p_rx_bd_ring[i], length);
580 }
581 }
582}
583
584static void dump_regs(struct ucc_geth_private *ugeth)
585{
586 int i;
587
588 pr_info("UCC%d Geth registers:\n", ugeth->ug_info->uf_info.ucc_num + 1);
589 pr_info("Base address: 0x%08x\n", (u32)ugeth->ug_regs);
590
591 pr_info("maccfg1 : addr - 0x%08x, val - 0x%08x\n",
592 (u32)&ugeth->ug_regs->maccfg1,
593 in_be32(&ugeth->ug_regs->maccfg1));
594 pr_info("maccfg2 : addr - 0x%08x, val - 0x%08x\n",
595 (u32)&ugeth->ug_regs->maccfg2,
596 in_be32(&ugeth->ug_regs->maccfg2));
597 pr_info("ipgifg : addr - 0x%08x, val - 0x%08x\n",
598 (u32)&ugeth->ug_regs->ipgifg,
599 in_be32(&ugeth->ug_regs->ipgifg));
600 pr_info("hafdup : addr - 0x%08x, val - 0x%08x\n",
601 (u32)&ugeth->ug_regs->hafdup,
602 in_be32(&ugeth->ug_regs->hafdup));
603 pr_info("ifctl : addr - 0x%08x, val - 0x%08x\n",
604 (u32)&ugeth->ug_regs->ifctl,
605 in_be32(&ugeth->ug_regs->ifctl));
606 pr_info("ifstat : addr - 0x%08x, val - 0x%08x\n",
607 (u32)&ugeth->ug_regs->ifstat,
608 in_be32(&ugeth->ug_regs->ifstat));
609 pr_info("macstnaddr1: addr - 0x%08x, val - 0x%08x\n",
610 (u32)&ugeth->ug_regs->macstnaddr1,
611 in_be32(&ugeth->ug_regs->macstnaddr1));
612 pr_info("macstnaddr2: addr - 0x%08x, val - 0x%08x\n",
613 (u32)&ugeth->ug_regs->macstnaddr2,
614 in_be32(&ugeth->ug_regs->macstnaddr2));
615 pr_info("uempr : addr - 0x%08x, val - 0x%08x\n",
616 (u32)&ugeth->ug_regs->uempr,
617 in_be32(&ugeth->ug_regs->uempr));
618 pr_info("utbipar : addr - 0x%08x, val - 0x%08x\n",
619 (u32)&ugeth->ug_regs->utbipar,
620 in_be32(&ugeth->ug_regs->utbipar));
621 pr_info("uescr : addr - 0x%08x, val - 0x%04x\n",
622 (u32)&ugeth->ug_regs->uescr,
623 in_be16(&ugeth->ug_regs->uescr));
624 pr_info("tx64 : addr - 0x%08x, val - 0x%08x\n",
625 (u32)&ugeth->ug_regs->tx64,
626 in_be32(&ugeth->ug_regs->tx64));
627 pr_info("tx127 : addr - 0x%08x, val - 0x%08x\n",
628 (u32)&ugeth->ug_regs->tx127,
629 in_be32(&ugeth->ug_regs->tx127));
630 pr_info("tx255 : addr - 0x%08x, val - 0x%08x\n",
631 (u32)&ugeth->ug_regs->tx255,
632 in_be32(&ugeth->ug_regs->tx255));
633 pr_info("rx64 : addr - 0x%08x, val - 0x%08x\n",
634 (u32)&ugeth->ug_regs->rx64,
635 in_be32(&ugeth->ug_regs->rx64));
636 pr_info("rx127 : addr - 0x%08x, val - 0x%08x\n",
637 (u32)&ugeth->ug_regs->rx127,
638 in_be32(&ugeth->ug_regs->rx127));
639 pr_info("rx255 : addr - 0x%08x, val - 0x%08x\n",
640 (u32)&ugeth->ug_regs->rx255,
641 in_be32(&ugeth->ug_regs->rx255));
642 pr_info("txok : addr - 0x%08x, val - 0x%08x\n",
643 (u32)&ugeth->ug_regs->txok,
644 in_be32(&ugeth->ug_regs->txok));
645 pr_info("txcf : addr - 0x%08x, val - 0x%04x\n",
646 (u32)&ugeth->ug_regs->txcf,
647 in_be16(&ugeth->ug_regs->txcf));
648 pr_info("tmca : addr - 0x%08x, val - 0x%08x\n",
649 (u32)&ugeth->ug_regs->tmca,
650 in_be32(&ugeth->ug_regs->tmca));
651 pr_info("tbca : addr - 0x%08x, val - 0x%08x\n",
652 (u32)&ugeth->ug_regs->tbca,
653 in_be32(&ugeth->ug_regs->tbca));
654 pr_info("rxfok : addr - 0x%08x, val - 0x%08x\n",
655 (u32)&ugeth->ug_regs->rxfok,
656 in_be32(&ugeth->ug_regs->rxfok));
657 pr_info("rxbok : addr - 0x%08x, val - 0x%08x\n",
658 (u32)&ugeth->ug_regs->rxbok,
659 in_be32(&ugeth->ug_regs->rxbok));
660 pr_info("rbyt : addr - 0x%08x, val - 0x%08x\n",
661 (u32)&ugeth->ug_regs->rbyt,
662 in_be32(&ugeth->ug_regs->rbyt));
663 pr_info("rmca : addr - 0x%08x, val - 0x%08x\n",
664 (u32)&ugeth->ug_regs->rmca,
665 in_be32(&ugeth->ug_regs->rmca));
666 pr_info("rbca : addr - 0x%08x, val - 0x%08x\n",
667 (u32)&ugeth->ug_regs->rbca,
668 in_be32(&ugeth->ug_regs->rbca));
669 pr_info("scar : addr - 0x%08x, val - 0x%08x\n",
670 (u32)&ugeth->ug_regs->scar,
671 in_be32(&ugeth->ug_regs->scar));
672 pr_info("scam : addr - 0x%08x, val - 0x%08x\n",
673 (u32)&ugeth->ug_regs->scam,
674 in_be32(&ugeth->ug_regs->scam));
675
676 if (ugeth->p_thread_data_tx) {
677 int numThreadsTxNumerical;
678 switch (ugeth->ug_info->numThreadsTx) {
679 case UCC_GETH_NUM_OF_THREADS_1:
680 numThreadsTxNumerical = 1;
681 break;
682 case UCC_GETH_NUM_OF_THREADS_2:
683 numThreadsTxNumerical = 2;
684 break;
685 case UCC_GETH_NUM_OF_THREADS_4:
686 numThreadsTxNumerical = 4;
687 break;
688 case UCC_GETH_NUM_OF_THREADS_6:
689 numThreadsTxNumerical = 6;
690 break;
691 case UCC_GETH_NUM_OF_THREADS_8:
692 numThreadsTxNumerical = 8;
693 break;
694 default:
695 numThreadsTxNumerical = 0;
696 break;
697 }
698
699 pr_info("Thread data TXs:\n");
700 pr_info("Base address: 0x%08x\n",
701 (u32)ugeth->p_thread_data_tx);
702 for (i = 0; i < numThreadsTxNumerical; i++) {
703 pr_info("Thread data TX[%d]:\n", i);
704 pr_info("Base address: 0x%08x\n",
705 (u32)&ugeth->p_thread_data_tx[i]);
706 mem_disp((u8 *) & ugeth->p_thread_data_tx[i],
707 sizeof(struct ucc_geth_thread_data_tx));
708 }
709 }
710 if (ugeth->p_thread_data_rx) {
711 int numThreadsRxNumerical;
712 switch (ugeth->ug_info->numThreadsRx) {
713 case UCC_GETH_NUM_OF_THREADS_1:
714 numThreadsRxNumerical = 1;
715 break;
716 case UCC_GETH_NUM_OF_THREADS_2:
717 numThreadsRxNumerical = 2;
718 break;
719 case UCC_GETH_NUM_OF_THREADS_4:
720 numThreadsRxNumerical = 4;
721 break;
722 case UCC_GETH_NUM_OF_THREADS_6:
723 numThreadsRxNumerical = 6;
724 break;
725 case UCC_GETH_NUM_OF_THREADS_8:
726 numThreadsRxNumerical = 8;
727 break;
728 default:
729 numThreadsRxNumerical = 0;
730 break;
731 }
732
733 pr_info("Thread data RX:\n");
734 pr_info("Base address: 0x%08x\n",
735 (u32)ugeth->p_thread_data_rx);
736 for (i = 0; i < numThreadsRxNumerical; i++) {
737 pr_info("Thread data RX[%d]:\n", i);
738 pr_info("Base address: 0x%08x\n",
739 (u32)&ugeth->p_thread_data_rx[i]);
740 mem_disp((u8 *) & ugeth->p_thread_data_rx[i],
741 sizeof(struct ucc_geth_thread_data_rx));
742 }
743 }
744 if (ugeth->p_exf_glbl_param) {
745 pr_info("EXF global param:\n");
746 pr_info("Base address: 0x%08x\n",
747 (u32)ugeth->p_exf_glbl_param);
748 mem_disp((u8 *) ugeth->p_exf_glbl_param,
749 sizeof(*ugeth->p_exf_glbl_param));
750 }
751 if (ugeth->p_tx_glbl_pram) {
752 pr_info("TX global param:\n");
753 pr_info("Base address: 0x%08x\n", (u32)ugeth->p_tx_glbl_pram);
754 pr_info("temoder : addr - 0x%08x, val - 0x%04x\n",
755 (u32)&ugeth->p_tx_glbl_pram->temoder,
756 in_be16(&ugeth->p_tx_glbl_pram->temoder));
757 pr_info("sqptr : addr - 0x%08x, val - 0x%08x\n",
758 (u32)&ugeth->p_tx_glbl_pram->sqptr,
759 in_be32(&ugeth->p_tx_glbl_pram->sqptr));
760 pr_info("schedulerbasepointer: addr - 0x%08x, val - 0x%08x\n",
761 (u32)&ugeth->p_tx_glbl_pram->schedulerbasepointer,
762 in_be32(&ugeth->p_tx_glbl_pram->schedulerbasepointer));
763 pr_info("txrmonbaseptr: addr - 0x%08x, val - 0x%08x\n",
764 (u32)&ugeth->p_tx_glbl_pram->txrmonbaseptr,
765 in_be32(&ugeth->p_tx_glbl_pram->txrmonbaseptr));
766 pr_info("tstate : addr - 0x%08x, val - 0x%08x\n",
767 (u32)&ugeth->p_tx_glbl_pram->tstate,
768 in_be32(&ugeth->p_tx_glbl_pram->tstate));
769 pr_info("iphoffset[0] : addr - 0x%08x, val - 0x%02x\n",
770 (u32)&ugeth->p_tx_glbl_pram->iphoffset[0],
771 ugeth->p_tx_glbl_pram->iphoffset[0]);
772 pr_info("iphoffset[1] : addr - 0x%08x, val - 0x%02x\n",
773 (u32)&ugeth->p_tx_glbl_pram->iphoffset[1],
774 ugeth->p_tx_glbl_pram->iphoffset[1]);
775 pr_info("iphoffset[2] : addr - 0x%08x, val - 0x%02x\n",
776 (u32)&ugeth->p_tx_glbl_pram->iphoffset[2],
777 ugeth->p_tx_glbl_pram->iphoffset[2]);
778 pr_info("iphoffset[3] : addr - 0x%08x, val - 0x%02x\n",
779 (u32)&ugeth->p_tx_glbl_pram->iphoffset[3],
780 ugeth->p_tx_glbl_pram->iphoffset[3]);
781 pr_info("iphoffset[4] : addr - 0x%08x, val - 0x%02x\n",
782 (u32)&ugeth->p_tx_glbl_pram->iphoffset[4],
783 ugeth->p_tx_glbl_pram->iphoffset[4]);
784 pr_info("iphoffset[5] : addr - 0x%08x, val - 0x%02x\n",
785 (u32)&ugeth->p_tx_glbl_pram->iphoffset[5],
786 ugeth->p_tx_glbl_pram->iphoffset[5]);
787 pr_info("iphoffset[6] : addr - 0x%08x, val - 0x%02x\n",
788 (u32)&ugeth->p_tx_glbl_pram->iphoffset[6],
789 ugeth->p_tx_glbl_pram->iphoffset[6]);
790 pr_info("iphoffset[7] : addr - 0x%08x, val - 0x%02x\n",
791 (u32)&ugeth->p_tx_glbl_pram->iphoffset[7],
792 ugeth->p_tx_glbl_pram->iphoffset[7]);
793 pr_info("vtagtable[0] : addr - 0x%08x, val - 0x%08x\n",
794 (u32)&ugeth->p_tx_glbl_pram->vtagtable[0],
795 in_be32(&ugeth->p_tx_glbl_pram->vtagtable[0]));
796 pr_info("vtagtable[1] : addr - 0x%08x, val - 0x%08x\n",
797 (u32)&ugeth->p_tx_glbl_pram->vtagtable[1],
798 in_be32(&ugeth->p_tx_glbl_pram->vtagtable[1]));
799 pr_info("vtagtable[2] : addr - 0x%08x, val - 0x%08x\n",
800 (u32)&ugeth->p_tx_glbl_pram->vtagtable[2],
801 in_be32(&ugeth->p_tx_glbl_pram->vtagtable[2]));
802 pr_info("vtagtable[3] : addr - 0x%08x, val - 0x%08x\n",
803 (u32)&ugeth->p_tx_glbl_pram->vtagtable[3],
804 in_be32(&ugeth->p_tx_glbl_pram->vtagtable[3]));
805 pr_info("vtagtable[4] : addr - 0x%08x, val - 0x%08x\n",
806 (u32)&ugeth->p_tx_glbl_pram->vtagtable[4],
807 in_be32(&ugeth->p_tx_glbl_pram->vtagtable[4]));
808 pr_info("vtagtable[5] : addr - 0x%08x, val - 0x%08x\n",
809 (u32)&ugeth->p_tx_glbl_pram->vtagtable[5],
810 in_be32(&ugeth->p_tx_glbl_pram->vtagtable[5]));
811 pr_info("vtagtable[6] : addr - 0x%08x, val - 0x%08x\n",
812 (u32)&ugeth->p_tx_glbl_pram->vtagtable[6],
813 in_be32(&ugeth->p_tx_glbl_pram->vtagtable[6]));
814 pr_info("vtagtable[7] : addr - 0x%08x, val - 0x%08x\n",
815 (u32)&ugeth->p_tx_glbl_pram->vtagtable[7],
816 in_be32(&ugeth->p_tx_glbl_pram->vtagtable[7]));
817 pr_info("tqptr : addr - 0x%08x, val - 0x%08x\n",
818 (u32)&ugeth->p_tx_glbl_pram->tqptr,
819 in_be32(&ugeth->p_tx_glbl_pram->tqptr));
820 }
821 if (ugeth->p_rx_glbl_pram) {
822 pr_info("RX global param:\n");
823 pr_info("Base address: 0x%08x\n", (u32)ugeth->p_rx_glbl_pram);
824 pr_info("remoder : addr - 0x%08x, val - 0x%08x\n",
825 (u32)&ugeth->p_rx_glbl_pram->remoder,
826 in_be32(&ugeth->p_rx_glbl_pram->remoder));
827 pr_info("rqptr : addr - 0x%08x, val - 0x%08x\n",
828 (u32)&ugeth->p_rx_glbl_pram->rqptr,
829 in_be32(&ugeth->p_rx_glbl_pram->rqptr));
830 pr_info("typeorlen : addr - 0x%08x, val - 0x%04x\n",
831 (u32)&ugeth->p_rx_glbl_pram->typeorlen,
832 in_be16(&ugeth->p_rx_glbl_pram->typeorlen));
833 pr_info("rxgstpack : addr - 0x%08x, val - 0x%02x\n",
834 (u32)&ugeth->p_rx_glbl_pram->rxgstpack,
835 ugeth->p_rx_glbl_pram->rxgstpack);
836 pr_info("rxrmonbaseptr : addr - 0x%08x, val - 0x%08x\n",
837 (u32)&ugeth->p_rx_glbl_pram->rxrmonbaseptr,
838 in_be32(&ugeth->p_rx_glbl_pram->rxrmonbaseptr));
839 pr_info("intcoalescingptr: addr - 0x%08x, val - 0x%08x\n",
840 (u32)&ugeth->p_rx_glbl_pram->intcoalescingptr,
841 in_be32(&ugeth->p_rx_glbl_pram->intcoalescingptr));
842 pr_info("rstate : addr - 0x%08x, val - 0x%02x\n",
843 (u32)&ugeth->p_rx_glbl_pram->rstate,
844 ugeth->p_rx_glbl_pram->rstate);
845 pr_info("mrblr : addr - 0x%08x, val - 0x%04x\n",
846 (u32)&ugeth->p_rx_glbl_pram->mrblr,
847 in_be16(&ugeth->p_rx_glbl_pram->mrblr));
848 pr_info("rbdqptr : addr - 0x%08x, val - 0x%08x\n",
849 (u32)&ugeth->p_rx_glbl_pram->rbdqptr,
850 in_be32(&ugeth->p_rx_glbl_pram->rbdqptr));
851 pr_info("mflr : addr - 0x%08x, val - 0x%04x\n",
852 (u32)&ugeth->p_rx_glbl_pram->mflr,
853 in_be16(&ugeth->p_rx_glbl_pram->mflr));
854 pr_info("minflr : addr - 0x%08x, val - 0x%04x\n",
855 (u32)&ugeth->p_rx_glbl_pram->minflr,
856 in_be16(&ugeth->p_rx_glbl_pram->minflr));
857 pr_info("maxd1 : addr - 0x%08x, val - 0x%04x\n",
858 (u32)&ugeth->p_rx_glbl_pram->maxd1,
859 in_be16(&ugeth->p_rx_glbl_pram->maxd1));
860 pr_info("maxd2 : addr - 0x%08x, val - 0x%04x\n",
861 (u32)&ugeth->p_rx_glbl_pram->maxd2,
862 in_be16(&ugeth->p_rx_glbl_pram->maxd2));
863 pr_info("ecamptr : addr - 0x%08x, val - 0x%08x\n",
864 (u32)&ugeth->p_rx_glbl_pram->ecamptr,
865 in_be32(&ugeth->p_rx_glbl_pram->ecamptr));
866 pr_info("l2qt : addr - 0x%08x, val - 0x%08x\n",
867 (u32)&ugeth->p_rx_glbl_pram->l2qt,
868 in_be32(&ugeth->p_rx_glbl_pram->l2qt));
869 pr_info("l3qt[0] : addr - 0x%08x, val - 0x%08x\n",
870 (u32)&ugeth->p_rx_glbl_pram->l3qt[0],
871 in_be32(&ugeth->p_rx_glbl_pram->l3qt[0]));
872 pr_info("l3qt[1] : addr - 0x%08x, val - 0x%08x\n",
873 (u32)&ugeth->p_rx_glbl_pram->l3qt[1],
874 in_be32(&ugeth->p_rx_glbl_pram->l3qt[1]));
875 pr_info("l3qt[2] : addr - 0x%08x, val - 0x%08x\n",
876 (u32)&ugeth->p_rx_glbl_pram->l3qt[2],
877 in_be32(&ugeth->p_rx_glbl_pram->l3qt[2]));
878 pr_info("l3qt[3] : addr - 0x%08x, val - 0x%08x\n",
879 (u32)&ugeth->p_rx_glbl_pram->l3qt[3],
880 in_be32(&ugeth->p_rx_glbl_pram->l3qt[3]));
881 pr_info("l3qt[4] : addr - 0x%08x, val - 0x%08x\n",
882 (u32)&ugeth->p_rx_glbl_pram->l3qt[4],
883 in_be32(&ugeth->p_rx_glbl_pram->l3qt[4]));
884 pr_info("l3qt[5] : addr - 0x%08x, val - 0x%08x\n",
885 (u32)&ugeth->p_rx_glbl_pram->l3qt[5],
886 in_be32(&ugeth->p_rx_glbl_pram->l3qt[5]));
887 pr_info("l3qt[6] : addr - 0x%08x, val - 0x%08x\n",
888 (u32)&ugeth->p_rx_glbl_pram->l3qt[6],
889 in_be32(&ugeth->p_rx_glbl_pram->l3qt[6]));
890 pr_info("l3qt[7] : addr - 0x%08x, val - 0x%08x\n",
891 (u32)&ugeth->p_rx_glbl_pram->l3qt[7],
892 in_be32(&ugeth->p_rx_glbl_pram->l3qt[7]));
893 pr_info("vlantype : addr - 0x%08x, val - 0x%04x\n",
894 (u32)&ugeth->p_rx_glbl_pram->vlantype,
895 in_be16(&ugeth->p_rx_glbl_pram->vlantype));
896 pr_info("vlantci : addr - 0x%08x, val - 0x%04x\n",
897 (u32)&ugeth->p_rx_glbl_pram->vlantci,
898 in_be16(&ugeth->p_rx_glbl_pram->vlantci));
899 for (i = 0; i < 64; i++)
900 pr_info("addressfiltering[%d]: addr - 0x%08x, val - 0x%02x\n",
901 i,
902 (u32)&ugeth->p_rx_glbl_pram->addressfiltering[i],
903 ugeth->p_rx_glbl_pram->addressfiltering[i]);
904 pr_info("exfGlobalParam : addr - 0x%08x, val - 0x%08x\n",
905 (u32)&ugeth->p_rx_glbl_pram->exfGlobalParam,
906 in_be32(&ugeth->p_rx_glbl_pram->exfGlobalParam));
907 }
908 if (ugeth->p_send_q_mem_reg) {
909 pr_info("Send Q memory registers:\n");
910 pr_info("Base address: 0x%08x\n", (u32)ugeth->p_send_q_mem_reg);
911 for (i = 0; i < ugeth->ug_info->numQueuesTx; i++) {
912 pr_info("SQQD[%d]:\n", i);
913 pr_info("Base address: 0x%08x\n",
914 (u32)&ugeth->p_send_q_mem_reg->sqqd[i]);
915 mem_disp((u8 *) & ugeth->p_send_q_mem_reg->sqqd[i],
916 sizeof(struct ucc_geth_send_queue_qd));
917 }
918 }
919 if (ugeth->p_scheduler) {
920 pr_info("Scheduler:\n");
921 pr_info("Base address: 0x%08x\n", (u32)ugeth->p_scheduler);
922 mem_disp((u8 *) ugeth->p_scheduler,
923 sizeof(*ugeth->p_scheduler));
924 }
925 if (ugeth->p_tx_fw_statistics_pram) {
926 pr_info("TX FW statistics pram:\n");
927 pr_info("Base address: 0x%08x\n",
928 (u32)ugeth->p_tx_fw_statistics_pram);
929 mem_disp((u8 *) ugeth->p_tx_fw_statistics_pram,
930 sizeof(*ugeth->p_tx_fw_statistics_pram));
931 }
932 if (ugeth->p_rx_fw_statistics_pram) {
933 pr_info("RX FW statistics pram:\n");
934 pr_info("Base address: 0x%08x\n",
935 (u32)ugeth->p_rx_fw_statistics_pram);
936 mem_disp((u8 *) ugeth->p_rx_fw_statistics_pram,
937 sizeof(*ugeth->p_rx_fw_statistics_pram));
938 }
939 if (ugeth->p_rx_irq_coalescing_tbl) {
940 pr_info("RX IRQ coalescing tables:\n");
941 pr_info("Base address: 0x%08x\n",
942 (u32)ugeth->p_rx_irq_coalescing_tbl);
943 for (i = 0; i < ugeth->ug_info->numQueuesRx; i++) {
944 pr_info("RX IRQ coalescing table entry[%d]:\n", i);
945 pr_info("Base address: 0x%08x\n",
946 (u32)&ugeth->p_rx_irq_coalescing_tbl->
947 coalescingentry[i]);
948 pr_info("interruptcoalescingmaxvalue: addr - 0x%08x, val - 0x%08x\n",
949 (u32)&ugeth->p_rx_irq_coalescing_tbl->
950 coalescingentry[i].interruptcoalescingmaxvalue,
951 in_be32(&ugeth->p_rx_irq_coalescing_tbl->
952 coalescingentry[i].
953 interruptcoalescingmaxvalue));
954 pr_info("interruptcoalescingcounter : addr - 0x%08x, val - 0x%08x\n",
955 (u32)&ugeth->p_rx_irq_coalescing_tbl->
956 coalescingentry[i].interruptcoalescingcounter,
957 in_be32(&ugeth->p_rx_irq_coalescing_tbl->
958 coalescingentry[i].
959 interruptcoalescingcounter));
960 }
961 }
962 if (ugeth->p_rx_bd_qs_tbl) {
963 pr_info("RX BD QS tables:\n");
964 pr_info("Base address: 0x%08x\n", (u32)ugeth->p_rx_bd_qs_tbl);
965 for (i = 0; i < ugeth->ug_info->numQueuesRx; i++) {
966 pr_info("RX BD QS table[%d]:\n", i);
967 pr_info("Base address: 0x%08x\n",
968 (u32)&ugeth->p_rx_bd_qs_tbl[i]);
969 pr_info("bdbaseptr : addr - 0x%08x, val - 0x%08x\n",
970 (u32)&ugeth->p_rx_bd_qs_tbl[i].bdbaseptr,
971 in_be32(&ugeth->p_rx_bd_qs_tbl[i].bdbaseptr));
972 pr_info("bdptr : addr - 0x%08x, val - 0x%08x\n",
973 (u32)&ugeth->p_rx_bd_qs_tbl[i].bdptr,
974 in_be32(&ugeth->p_rx_bd_qs_tbl[i].bdptr));
975 pr_info("externalbdbaseptr: addr - 0x%08x, val - 0x%08x\n",
976 (u32)&ugeth->p_rx_bd_qs_tbl[i].externalbdbaseptr,
977 in_be32(&ugeth->p_rx_bd_qs_tbl[i].
978 externalbdbaseptr));
979 pr_info("externalbdptr : addr - 0x%08x, val - 0x%08x\n",
980 (u32)&ugeth->p_rx_bd_qs_tbl[i].externalbdptr,
981 in_be32(&ugeth->p_rx_bd_qs_tbl[i].externalbdptr));
982 pr_info("ucode RX Prefetched BDs:\n");
983 pr_info("Base address: 0x%08x\n",
984 (u32)qe_muram_addr(in_be32
985 (&ugeth->p_rx_bd_qs_tbl[i].
986 bdbaseptr)));
987 mem_disp((u8 *)
988 qe_muram_addr(in_be32
989 (&ugeth->p_rx_bd_qs_tbl[i].
990 bdbaseptr)),
991 sizeof(struct ucc_geth_rx_prefetched_bds));
992 }
993 }
994 if (ugeth->p_init_enet_param_shadow) {
995 int size;
996 pr_info("Init enet param shadow:\n");
997 pr_info("Base address: 0x%08x\n",
998 (u32) ugeth->p_init_enet_param_shadow);
999 mem_disp((u8 *) ugeth->p_init_enet_param_shadow,
1000 sizeof(*ugeth->p_init_enet_param_shadow));
1001
1002 size = sizeof(struct ucc_geth_thread_rx_pram);
1003 if (ugeth->ug_info->rxExtendedFiltering) {
1004 size +=
1005 THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING;
1006 if (ugeth->ug_info->largestexternallookupkeysize ==
1007 QE_FLTR_TABLE_LOOKUP_KEY_SIZE_8_BYTES)
1008 size +=
1009 THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING_8;
1010 if (ugeth->ug_info->largestexternallookupkeysize ==
1011 QE_FLTR_TABLE_LOOKUP_KEY_SIZE_16_BYTES)
1012 size +=
1013 THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING_16;
1014 }
1015
1016 dump_init_enet_entries(ugeth,
1017 &(ugeth->p_init_enet_param_shadow->
1018 txthread[0]),
1019 ENET_INIT_PARAM_MAX_ENTRIES_TX,
1020 sizeof(struct ucc_geth_thread_tx_pram),
1021 ugeth->ug_info->riscTx, 0);
1022 dump_init_enet_entries(ugeth,
1023 &(ugeth->p_init_enet_param_shadow->
1024 rxthread[0]),
1025 ENET_INIT_PARAM_MAX_ENTRIES_RX, size,
1026 ugeth->ug_info->riscRx, 1);
1027 }
1028}
1029#endif /* DEBUG */
1030
1031static void init_default_reg_vals(u32 __iomem *upsmr_register,
1032 u32 __iomem *maccfg1_register,
1033 u32 __iomem *maccfg2_register)
1034{
1035 out_be32(upsmr_register, UCC_GETH_UPSMR_INIT);
1036 out_be32(maccfg1_register, UCC_GETH_MACCFG1_INIT);
1037 out_be32(maccfg2_register, UCC_GETH_MACCFG2_INIT);
1038}
1039
1040static int init_half_duplex_params(int alt_beb,
1041 int back_pressure_no_backoff,
1042 int no_backoff,
1043 int excess_defer,
1044 u8 alt_beb_truncation,
1045 u8 max_retransmissions,
1046 u8 collision_window,
1047 u32 __iomem *hafdup_register)
1048{
1049 u32 value = 0;
1050
1051 if ((alt_beb_truncation > HALFDUP_ALT_BEB_TRUNCATION_MAX) ||
1052 (max_retransmissions > HALFDUP_MAX_RETRANSMISSION_MAX) ||
1053 (collision_window > HALFDUP_COLLISION_WINDOW_MAX))
1054 return -EINVAL;
1055
1056 value = (u32) (alt_beb_truncation << HALFDUP_ALT_BEB_TRUNCATION_SHIFT);
1057
1058 if (alt_beb)
1059 value |= HALFDUP_ALT_BEB;
1060 if (back_pressure_no_backoff)
1061 value |= HALFDUP_BACK_PRESSURE_NO_BACKOFF;
1062 if (no_backoff)
1063 value |= HALFDUP_NO_BACKOFF;
1064 if (excess_defer)
1065 value |= HALFDUP_EXCESSIVE_DEFER;
1066
1067 value |= (max_retransmissions << HALFDUP_MAX_RETRANSMISSION_SHIFT);
1068
1069 value |= collision_window;
1070
1071 out_be32(hafdup_register, value);
1072 return 0;
1073}
1074
1075static int init_inter_frame_gap_params(u8 non_btb_cs_ipg,
1076 u8 non_btb_ipg,
1077 u8 min_ifg,
1078 u8 btb_ipg,
1079 u32 __iomem *ipgifg_register)
1080{
1081 u32 value = 0;
1082
1083 /* Non-Back-to-back IPG part 1 should be <= Non-Back-to-back
1084 IPG part 2 */
1085 if (non_btb_cs_ipg > non_btb_ipg)
1086 return -EINVAL;
1087
1088 if ((non_btb_cs_ipg > IPGIFG_NON_BACK_TO_BACK_IFG_PART1_MAX) ||
1089 (non_btb_ipg > IPGIFG_NON_BACK_TO_BACK_IFG_PART2_MAX) ||
1090 /*(min_ifg > IPGIFG_MINIMUM_IFG_ENFORCEMENT_MAX) || */
1091 (btb_ipg > IPGIFG_BACK_TO_BACK_IFG_MAX))
1092 return -EINVAL;
1093
1094 value |=
1095 ((non_btb_cs_ipg << IPGIFG_NON_BACK_TO_BACK_IFG_PART1_SHIFT) &
1096 IPGIFG_NBTB_CS_IPG_MASK);
1097 value |=
1098 ((non_btb_ipg << IPGIFG_NON_BACK_TO_BACK_IFG_PART2_SHIFT) &
1099 IPGIFG_NBTB_IPG_MASK);
1100 value |=
1101 ((min_ifg << IPGIFG_MINIMUM_IFG_ENFORCEMENT_SHIFT) &
1102 IPGIFG_MIN_IFG_MASK);
1103 value |= (btb_ipg & IPGIFG_BTB_IPG_MASK);
1104
1105 out_be32(ipgifg_register, value);
1106 return 0;
1107}
1108
1109int init_flow_control_params(u32 automatic_flow_control_mode,
1110 int rx_flow_control_enable,
1111 int tx_flow_control_enable,
1112 u16 pause_period,
1113 u16 extension_field,
1114 u32 __iomem *upsmr_register,
1115 u32 __iomem *uempr_register,
1116 u32 __iomem *maccfg1_register)
1117{
1118 u32 value = 0;
1119
1120 /* Set UEMPR register */
1121 value = (u32) pause_period << UEMPR_PAUSE_TIME_VALUE_SHIFT;
1122 value |= (u32) extension_field << UEMPR_EXTENDED_PAUSE_TIME_VALUE_SHIFT;
1123 out_be32(uempr_register, value);
1124
1125 /* Set UPSMR register */
1126 setbits32(upsmr_register, automatic_flow_control_mode);
1127
1128 value = in_be32(maccfg1_register);
1129 if (rx_flow_control_enable)
1130 value |= MACCFG1_FLOW_RX;
1131 if (tx_flow_control_enable)
1132 value |= MACCFG1_FLOW_TX;
1133 out_be32(maccfg1_register, value);
1134
1135 return 0;
1136}
1137
1138static int init_hw_statistics_gathering_mode(int enable_hardware_statistics,
1139 int auto_zero_hardware_statistics,
1140 u32 __iomem *upsmr_register,
1141 u16 __iomem *uescr_register)
1142{
1143 u16 uescr_value = 0;
1144
1145 /* Enable hardware statistics gathering if requested */
1146 if (enable_hardware_statistics)
1147 setbits32(upsmr_register, UCC_GETH_UPSMR_HSE);
1148
1149 /* Clear hardware statistics counters */
1150 uescr_value = in_be16(uescr_register);
1151 uescr_value |= UESCR_CLRCNT;
1152 /* Automatically zero hardware statistics counters on read,
1153 if requested */
1154 if (auto_zero_hardware_statistics)
1155 uescr_value |= UESCR_AUTOZ;
1156 out_be16(uescr_register, uescr_value);
1157
1158 return 0;
1159}
1160
1161static int init_firmware_statistics_gathering_mode(int
1162 enable_tx_firmware_statistics,
1163 int enable_rx_firmware_statistics,
1164 u32 __iomem *tx_rmon_base_ptr,
1165 u32 tx_firmware_statistics_structure_address,
1166 u32 __iomem *rx_rmon_base_ptr,
1167 u32 rx_firmware_statistics_structure_address,
1168 u16 __iomem *temoder_register,
1169 u32 __iomem *remoder_register)
1170{
1171 /* Note: this function does not check if */
1172 /* the parameters it receives are NULL */
1173
1174 if (enable_tx_firmware_statistics) {
1175 out_be32(tx_rmon_base_ptr,
1176 tx_firmware_statistics_structure_address);
1177 setbits16(temoder_register, TEMODER_TX_RMON_STATISTICS_ENABLE);
1178 }
1179
1180 if (enable_rx_firmware_statistics) {
1181 out_be32(rx_rmon_base_ptr,
1182 rx_firmware_statistics_structure_address);
1183 setbits32(remoder_register, REMODER_RX_RMON_STATISTICS_ENABLE);
1184 }
1185
1186 return 0;
1187}
1188
1189static int init_mac_station_addr_regs(u8 address_byte_0,
1190 u8 address_byte_1,
1191 u8 address_byte_2,
1192 u8 address_byte_3,
1193 u8 address_byte_4,
1194 u8 address_byte_5,
1195 u32 __iomem *macstnaddr1_register,
1196 u32 __iomem *macstnaddr2_register)
1197{
1198 u32 value = 0;
1199
1200 /* Example: for a station address of 0x12345678ABCD, */
1201 /* 0x12 is byte 0, 0x34 is byte 1 and so on and 0xCD is byte 5 */
1202
1203 /* MACSTNADDR1 Register: */
1204
1205 /* 0 7 8 15 */
1206 /* station address byte 5 station address byte 4 */
1207 /* 16 23 24 31 */
1208 /* station address byte 3 station address byte 2 */
1209 value |= (u32) ((address_byte_2 << 0) & 0x000000FF);
1210 value |= (u32) ((address_byte_3 << 8) & 0x0000FF00);
1211 value |= (u32) ((address_byte_4 << 16) & 0x00FF0000);
1212 value |= (u32) ((address_byte_5 << 24) & 0xFF000000);
1213
1214 out_be32(macstnaddr1_register, value);
1215
1216 /* MACSTNADDR2 Register: */
1217
1218 /* 0 7 8 15 */
1219 /* station address byte 1 station address byte 0 */
1220 /* 16 23 24 31 */
1221 /* reserved reserved */
1222 value = 0;
1223 value |= (u32) ((address_byte_0 << 16) & 0x00FF0000);
1224 value |= (u32) ((address_byte_1 << 24) & 0xFF000000);
1225
1226 out_be32(macstnaddr2_register, value);
1227
1228 return 0;
1229}
1230
1231static int init_check_frame_length_mode(int length_check,
1232 u32 __iomem *maccfg2_register)
1233{
1234 u32 value = 0;
1235
1236 value = in_be32(maccfg2_register);
1237
1238 if (length_check)
1239 value |= MACCFG2_LC;
1240 else
1241 value &= ~MACCFG2_LC;
1242
1243 out_be32(maccfg2_register, value);
1244 return 0;
1245}
1246
1247static int init_preamble_length(u8 preamble_length,
1248 u32 __iomem *maccfg2_register)
1249{
1250 if ((preamble_length < 3) || (preamble_length > 7))
1251 return -EINVAL;
1252
1253 clrsetbits_be32(maccfg2_register, MACCFG2_PREL_MASK,
1254 preamble_length << MACCFG2_PREL_SHIFT);
1255
1256 return 0;
1257}
1258
1259static int init_rx_parameters(int reject_broadcast,
1260 int receive_short_frames,
1261 int promiscuous, u32 __iomem *upsmr_register)
1262{
1263 u32 value = 0;
1264
1265 value = in_be32(upsmr_register);
1266
1267 if (reject_broadcast)
1268 value |= UCC_GETH_UPSMR_BRO;
1269 else
1270 value &= ~UCC_GETH_UPSMR_BRO;
1271
1272 if (receive_short_frames)
1273 value |= UCC_GETH_UPSMR_RSH;
1274 else
1275 value &= ~UCC_GETH_UPSMR_RSH;
1276
1277 if (promiscuous)
1278 value |= UCC_GETH_UPSMR_PRO;
1279 else
1280 value &= ~UCC_GETH_UPSMR_PRO;
1281
1282 out_be32(upsmr_register, value);
1283
1284 return 0;
1285}
1286
1287static int init_max_rx_buff_len(u16 max_rx_buf_len,
1288 u16 __iomem *mrblr_register)
1289{
1290 /* max_rx_buf_len value must be a multiple of 128 */
1291 if ((max_rx_buf_len == 0) ||
1292 (max_rx_buf_len % UCC_GETH_MRBLR_ALIGNMENT))
1293 return -EINVAL;
1294
1295 out_be16(mrblr_register, max_rx_buf_len);
1296 return 0;
1297}
1298
1299static int init_min_frame_len(u16 min_frame_length,
1300 u16 __iomem *minflr_register,
1301 u16 __iomem *mrblr_register)
1302{
1303 u16 mrblr_value = 0;
1304
1305 mrblr_value = in_be16(mrblr_register);
1306 if (min_frame_length >= (mrblr_value - 4))
1307 return -EINVAL;
1308
1309 out_be16(minflr_register, min_frame_length);
1310 return 0;
1311}
1312
1313static int adjust_enet_interface(struct ucc_geth_private *ugeth)
1314{
1315 struct ucc_geth_info *ug_info;
1316 struct ucc_geth __iomem *ug_regs;
1317 struct ucc_fast __iomem *uf_regs;
1318 int ret_val;
1319 u32 upsmr, maccfg2;
1320 u16 value;
1321
1322 ugeth_vdbg("%s: IN", __func__);
1323
1324 ug_info = ugeth->ug_info;
1325 ug_regs = ugeth->ug_regs;
1326 uf_regs = ugeth->uccf->uf_regs;
1327
1328 /* Set MACCFG2 */
1329 maccfg2 = in_be32(&ug_regs->maccfg2);
1330 maccfg2 &= ~MACCFG2_INTERFACE_MODE_MASK;
1331 if ((ugeth->max_speed == SPEED_10) ||
1332 (ugeth->max_speed == SPEED_100))
1333 maccfg2 |= MACCFG2_INTERFACE_MODE_NIBBLE;
1334 else if (ugeth->max_speed == SPEED_1000)
1335 maccfg2 |= MACCFG2_INTERFACE_MODE_BYTE;
1336 maccfg2 |= ug_info->padAndCrc;
1337 out_be32(&ug_regs->maccfg2, maccfg2);
1338
1339 /* Set UPSMR */
1340 upsmr = in_be32(&uf_regs->upsmr);
1341 upsmr &= ~(UCC_GETH_UPSMR_RPM | UCC_GETH_UPSMR_R10M |
1342 UCC_GETH_UPSMR_TBIM | UCC_GETH_UPSMR_RMM);
1343 if ((ugeth->phy_interface == PHY_INTERFACE_MODE_RMII) ||
1344 (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII) ||
1345 (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII_ID) ||
1346 (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII_RXID) ||
1347 (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII_TXID) ||
1348 (ugeth->phy_interface == PHY_INTERFACE_MODE_RTBI)) {
1349 if (ugeth->phy_interface != PHY_INTERFACE_MODE_RMII)
1350 upsmr |= UCC_GETH_UPSMR_RPM;
1351 switch (ugeth->max_speed) {
1352 case SPEED_10:
1353 upsmr |= UCC_GETH_UPSMR_R10M;
1354 /* FALLTHROUGH */
1355 case SPEED_100:
1356 if (ugeth->phy_interface != PHY_INTERFACE_MODE_RTBI)
1357 upsmr |= UCC_GETH_UPSMR_RMM;
1358 }
1359 }
1360 if ((ugeth->phy_interface == PHY_INTERFACE_MODE_TBI) ||
1361 (ugeth->phy_interface == PHY_INTERFACE_MODE_RTBI)) {
1362 upsmr |= UCC_GETH_UPSMR_TBIM;
1363 }
1364 if ((ugeth->phy_interface == PHY_INTERFACE_MODE_SGMII))
1365 upsmr |= UCC_GETH_UPSMR_SGMM;
1366
1367 out_be32(&uf_regs->upsmr, upsmr);
1368
1369 /* Disable autonegotiation in tbi mode, because by default it
1370 comes up in autonegotiation mode. */
1371 /* Note that this depends on proper setting in utbipar register. */
1372 if ((ugeth->phy_interface == PHY_INTERFACE_MODE_TBI) ||
1373 (ugeth->phy_interface == PHY_INTERFACE_MODE_RTBI)) {
1374 struct ucc_geth_info *ug_info = ugeth->ug_info;
1375 struct phy_device *tbiphy;
1376
1377 if (!ug_info->tbi_node)
1378 pr_warn("TBI mode requires that the device tree specify a tbi-handle\n");
1379
1380 tbiphy = of_phy_find_device(ug_info->tbi_node);
1381 if (!tbiphy)
1382 pr_warn("Could not get TBI device\n");
1383
1384 value = phy_read(tbiphy, ENET_TBI_MII_CR);
1385 value &= ~0x1000; /* Turn off autonegotiation */
1386 phy_write(tbiphy, ENET_TBI_MII_CR, value);
1387
1388 put_device(&tbiphy->mdio.dev);
1389 }
1390
1391 init_check_frame_length_mode(ug_info->lengthCheckRx, &ug_regs->maccfg2);
1392
1393 ret_val = init_preamble_length(ug_info->prel, &ug_regs->maccfg2);
1394 if (ret_val != 0) {
1395 if (netif_msg_probe(ugeth))
1396 pr_err("Preamble length must be between 3 and 7 inclusive\n");
1397 return ret_val;
1398 }
1399
1400 return 0;
1401}
1402
1403static int ugeth_graceful_stop_tx(struct ucc_geth_private *ugeth)
1404{
1405 struct ucc_fast_private *uccf;
1406 u32 cecr_subblock;
1407 u32 temp;
1408 int i = 10;
1409
1410 uccf = ugeth->uccf;
1411
1412 /* Mask GRACEFUL STOP TX interrupt bit and clear it */
1413 clrbits32(uccf->p_uccm, UCC_GETH_UCCE_GRA);
1414 out_be32(uccf->p_ucce, UCC_GETH_UCCE_GRA); /* clear by writing 1 */
1415
1416 /* Issue host command */
1417 cecr_subblock =
1418 ucc_fast_get_qe_cr_subblock(ugeth->ug_info->uf_info.ucc_num);
1419 qe_issue_cmd(QE_GRACEFUL_STOP_TX, cecr_subblock,
1420 QE_CR_PROTOCOL_ETHERNET, 0);
1421
1422 /* Wait for command to complete */
1423 do {
1424 msleep(10);
1425 temp = in_be32(uccf->p_ucce);
1426 } while (!(temp & UCC_GETH_UCCE_GRA) && --i);
1427
1428 uccf->stopped_tx = 1;
1429
1430 return 0;
1431}
1432
1433static int ugeth_graceful_stop_rx(struct ucc_geth_private *ugeth)
1434{
1435 struct ucc_fast_private *uccf;
1436 u32 cecr_subblock;
1437 u8 temp;
1438 int i = 10;
1439
1440 uccf = ugeth->uccf;
1441
1442 /* Clear acknowledge bit */
1443 temp = in_8(&ugeth->p_rx_glbl_pram->rxgstpack);
1444 temp &= ~GRACEFUL_STOP_ACKNOWLEDGE_RX;
1445 out_8(&ugeth->p_rx_glbl_pram->rxgstpack, temp);
1446
1447 /* Keep issuing command and checking acknowledge bit until
1448 it is asserted, according to spec */
1449 do {
1450 /* Issue host command */
1451 cecr_subblock =
1452 ucc_fast_get_qe_cr_subblock(ugeth->ug_info->uf_info.
1453 ucc_num);
1454 qe_issue_cmd(QE_GRACEFUL_STOP_RX, cecr_subblock,
1455 QE_CR_PROTOCOL_ETHERNET, 0);
1456 msleep(10);
1457 temp = in_8(&ugeth->p_rx_glbl_pram->rxgstpack);
1458 } while (!(temp & GRACEFUL_STOP_ACKNOWLEDGE_RX) && --i);
1459
1460 uccf->stopped_rx = 1;
1461
1462 return 0;
1463}
1464
1465static int ugeth_restart_tx(struct ucc_geth_private *ugeth)
1466{
1467 struct ucc_fast_private *uccf;
1468 u32 cecr_subblock;
1469
1470 uccf = ugeth->uccf;
1471
1472 cecr_subblock =
1473 ucc_fast_get_qe_cr_subblock(ugeth->ug_info->uf_info.ucc_num);
1474 qe_issue_cmd(QE_RESTART_TX, cecr_subblock, QE_CR_PROTOCOL_ETHERNET, 0);
1475 uccf->stopped_tx = 0;
1476
1477 return 0;
1478}
1479
1480static int ugeth_restart_rx(struct ucc_geth_private *ugeth)
1481{
1482 struct ucc_fast_private *uccf;
1483 u32 cecr_subblock;
1484
1485 uccf = ugeth->uccf;
1486
1487 cecr_subblock =
1488 ucc_fast_get_qe_cr_subblock(ugeth->ug_info->uf_info.ucc_num);
1489 qe_issue_cmd(QE_RESTART_RX, cecr_subblock, QE_CR_PROTOCOL_ETHERNET,
1490 0);
1491 uccf->stopped_rx = 0;
1492
1493 return 0;
1494}
1495
1496static int ugeth_enable(struct ucc_geth_private *ugeth, enum comm_dir mode)
1497{
1498 struct ucc_fast_private *uccf;
1499 int enabled_tx, enabled_rx;
1500
1501 uccf = ugeth->uccf;
1502
1503 /* check if the UCC number is in range. */
1504 if (ugeth->ug_info->uf_info.ucc_num >= UCC_MAX_NUM) {
1505 if (netif_msg_probe(ugeth))
1506 pr_err("ucc_num out of range\n");
1507 return -EINVAL;
1508 }
1509
1510 enabled_tx = uccf->enabled_tx;
1511 enabled_rx = uccf->enabled_rx;
1512
1513 /* Get Tx and Rx going again, in case this channel was actively
1514 disabled. */
1515 if ((mode & COMM_DIR_TX) && (!enabled_tx) && uccf->stopped_tx)
1516 ugeth_restart_tx(ugeth);
1517 if ((mode & COMM_DIR_RX) && (!enabled_rx) && uccf->stopped_rx)
1518 ugeth_restart_rx(ugeth);
1519
1520 ucc_fast_enable(uccf, mode); /* OK to do even if not disabled */
1521
1522 return 0;
1523
1524}
1525
1526static int ugeth_disable(struct ucc_geth_private *ugeth, enum comm_dir mode)
1527{
1528 struct ucc_fast_private *uccf;
1529
1530 uccf = ugeth->uccf;
1531
1532 /* check if the UCC number is in range. */
1533 if (ugeth->ug_info->uf_info.ucc_num >= UCC_MAX_NUM) {
1534 if (netif_msg_probe(ugeth))
1535 pr_err("ucc_num out of range\n");
1536 return -EINVAL;
1537 }
1538
1539 /* Stop any transmissions */
1540 if ((mode & COMM_DIR_TX) && uccf->enabled_tx && !uccf->stopped_tx)
1541 ugeth_graceful_stop_tx(ugeth);
1542
1543 /* Stop any receptions */
1544 if ((mode & COMM_DIR_RX) && uccf->enabled_rx && !uccf->stopped_rx)
1545 ugeth_graceful_stop_rx(ugeth);
1546
1547 ucc_fast_disable(ugeth->uccf, mode); /* OK to do even if not enabled */
1548
1549 return 0;
1550}
1551
1552static void ugeth_quiesce(struct ucc_geth_private *ugeth)
1553{
1554 /* Prevent any further xmits, plus detach the device. */
1555 netif_device_detach(ugeth->ndev);
1556
1557 /* Wait for any current xmits to finish. */
1558 netif_tx_disable(ugeth->ndev);
1559
1560 /* Disable the interrupt to avoid NAPI rescheduling. */
1561 disable_irq(ugeth->ug_info->uf_info.irq);
1562
1563 /* Stop NAPI, and possibly wait for its completion. */
1564 napi_disable(&ugeth->napi);
1565}
1566
1567static void ugeth_activate(struct ucc_geth_private *ugeth)
1568{
1569 napi_enable(&ugeth->napi);
1570 enable_irq(ugeth->ug_info->uf_info.irq);
1571 netif_device_attach(ugeth->ndev);
1572}
1573
1574/* Called every time the controller might need to be made
1575 * aware of new link state. The PHY code conveys this
1576 * information through variables in the ugeth structure, and this
1577 * function converts those variables into the appropriate
1578 * register values, and can bring down the device if needed.
1579 */
1580
1581static void adjust_link(struct net_device *dev)
1582{
1583 struct ucc_geth_private *ugeth = netdev_priv(dev);
1584 struct ucc_geth __iomem *ug_regs;
1585 struct ucc_fast __iomem *uf_regs;
1586 struct phy_device *phydev = ugeth->phydev;
1587 int new_state = 0;
1588
1589 ug_regs = ugeth->ug_regs;
1590 uf_regs = ugeth->uccf->uf_regs;
1591
1592 if (phydev->link) {
1593 u32 tempval = in_be32(&ug_regs->maccfg2);
1594 u32 upsmr = in_be32(&uf_regs->upsmr);
1595 /* Now we make sure that we can be in full duplex mode.
1596 * If not, we operate in half-duplex mode. */
1597 if (phydev->duplex != ugeth->oldduplex) {
1598 new_state = 1;
1599 if (!(phydev->duplex))
1600 tempval &= ~(MACCFG2_FDX);
1601 else
1602 tempval |= MACCFG2_FDX;
1603 ugeth->oldduplex = phydev->duplex;
1604 }
1605
1606 if (phydev->speed != ugeth->oldspeed) {
1607 new_state = 1;
1608 switch (phydev->speed) {
1609 case SPEED_1000:
1610 tempval = ((tempval &
1611 ~(MACCFG2_INTERFACE_MODE_MASK)) |
1612 MACCFG2_INTERFACE_MODE_BYTE);
1613 break;
1614 case SPEED_100:
1615 case SPEED_10:
1616 tempval = ((tempval &
1617 ~(MACCFG2_INTERFACE_MODE_MASK)) |
1618 MACCFG2_INTERFACE_MODE_NIBBLE);
1619 /* if reduced mode, re-set UPSMR.R10M */
1620 if ((ugeth->phy_interface == PHY_INTERFACE_MODE_RMII) ||
1621 (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII) ||
1622 (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII_ID) ||
1623 (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII_RXID) ||
1624 (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII_TXID) ||
1625 (ugeth->phy_interface == PHY_INTERFACE_MODE_RTBI)) {
1626 if (phydev->speed == SPEED_10)
1627 upsmr |= UCC_GETH_UPSMR_R10M;
1628 else
1629 upsmr &= ~UCC_GETH_UPSMR_R10M;
1630 }
1631 break;
1632 default:
1633 if (netif_msg_link(ugeth))
1634 pr_warn(
1635 "%s: Ack! Speed (%d) is not 10/100/1000!",
1636 dev->name, phydev->speed);
1637 break;
1638 }
1639 ugeth->oldspeed = phydev->speed;
1640 }
1641
1642 if (!ugeth->oldlink) {
1643 new_state = 1;
1644 ugeth->oldlink = 1;
1645 }
1646
1647 if (new_state) {
1648 /*
1649 * To change the MAC configuration we need to disable
1650 * the controller. To do so, we have to either grab
1651 * ugeth->lock, which is a bad idea since 'graceful
1652 * stop' commands might take quite a while, or we can
1653 * quiesce driver's activity.
1654 */
1655 ugeth_quiesce(ugeth);
1656 ugeth_disable(ugeth, COMM_DIR_RX_AND_TX);
1657
1658 out_be32(&ug_regs->maccfg2, tempval);
1659 out_be32(&uf_regs->upsmr, upsmr);
1660
1661 ugeth_enable(ugeth, COMM_DIR_RX_AND_TX);
1662 ugeth_activate(ugeth);
1663 }
1664 } else if (ugeth->oldlink) {
1665 new_state = 1;
1666 ugeth->oldlink = 0;
1667 ugeth->oldspeed = 0;
1668 ugeth->oldduplex = -1;
1669 }
1670
1671 if (new_state && netif_msg_link(ugeth))
1672 phy_print_status(phydev);
1673}
1674
1675/* Initialize TBI PHY interface for communicating with the
1676 * SERDES lynx PHY on the chip. We communicate with this PHY
1677 * through the MDIO bus on each controller, treating it as a
1678 * "normal" PHY at the address found in the UTBIPA register. We assume
1679 * that the UTBIPA register is valid. Either the MDIO bus code will set
1680 * it to a value that doesn't conflict with other PHYs on the bus, or the
1681 * value doesn't matter, as there are no other PHYs on the bus.
1682 */
1683static void uec_configure_serdes(struct net_device *dev)
1684{
1685 struct ucc_geth_private *ugeth = netdev_priv(dev);
1686 struct ucc_geth_info *ug_info = ugeth->ug_info;
1687 struct phy_device *tbiphy;
1688
1689 if (!ug_info->tbi_node) {
1690 dev_warn(&dev->dev, "SGMII mode requires that the device "
1691 "tree specify a tbi-handle\n");
1692 return;
1693 }
1694
1695 tbiphy = of_phy_find_device(ug_info->tbi_node);
1696 if (!tbiphy) {
1697 dev_err(&dev->dev, "error: Could not get TBI device\n");
1698 return;
1699 }
1700
1701 /*
1702 * If the link is already up, we must already be ok, and don't need to
1703 * configure and reset the TBI<->SerDes link. Maybe U-Boot configured
1704 * everything for us? Resetting it takes the link down and requires
1705 * several seconds for it to come back.
1706 */
1707 if (phy_read(tbiphy, ENET_TBI_MII_SR) & TBISR_LSTATUS) {
1708 put_device(&tbiphy->mdio.dev);
1709 return;
1710 }
1711
1712 /* Single clk mode, mii mode off(for serdes communication) */
1713 phy_write(tbiphy, ENET_TBI_MII_ANA, TBIANA_SETTINGS);
1714
1715 phy_write(tbiphy, ENET_TBI_MII_TBICON, TBICON_CLK_SELECT);
1716
1717 phy_write(tbiphy, ENET_TBI_MII_CR, TBICR_SETTINGS);
1718
1719 put_device(&tbiphy->mdio.dev);
1720}
1721
1722/* Configure the PHY for dev.
1723 * returns 0 if success. -1 if failure
1724 */
1725static int init_phy(struct net_device *dev)
1726{
1727 struct ucc_geth_private *priv = netdev_priv(dev);
1728 struct ucc_geth_info *ug_info = priv->ug_info;
1729 struct phy_device *phydev;
1730
1731 priv->oldlink = 0;
1732 priv->oldspeed = 0;
1733 priv->oldduplex = -1;
1734
1735 phydev = of_phy_connect(dev, ug_info->phy_node, &adjust_link, 0,
1736 priv->phy_interface);
1737 if (!phydev) {
1738 dev_err(&dev->dev, "Could not attach to PHY\n");
1739 return -ENODEV;
1740 }
1741
1742 if (priv->phy_interface == PHY_INTERFACE_MODE_SGMII)
1743 uec_configure_serdes(dev);
1744
1745 phydev->supported &= (SUPPORTED_MII |
1746 SUPPORTED_Autoneg |
1747 ADVERTISED_10baseT_Half |
1748 ADVERTISED_10baseT_Full |
1749 ADVERTISED_100baseT_Half |
1750 ADVERTISED_100baseT_Full);
1751
1752 if (priv->max_speed == SPEED_1000)
1753 phydev->supported |= ADVERTISED_1000baseT_Full;
1754
1755 phydev->advertising = phydev->supported;
1756
1757 priv->phydev = phydev;
1758
1759 return 0;
1760}
1761
1762static void ugeth_dump_regs(struct ucc_geth_private *ugeth)
1763{
1764#ifdef DEBUG
1765 ucc_fast_dump_regs(ugeth->uccf);
1766 dump_regs(ugeth);
1767 dump_bds(ugeth);
1768#endif
1769}
1770
1771static int ugeth_82xx_filtering_clear_all_addr_in_hash(struct ucc_geth_private *
1772 ugeth,
1773 enum enet_addr_type
1774 enet_addr_type)
1775{
1776 struct ucc_geth_82xx_address_filtering_pram __iomem *p_82xx_addr_filt;
1777 struct ucc_fast_private *uccf;
1778 enum comm_dir comm_dir;
1779 struct list_head *p_lh;
1780 u16 i, num;
1781 u32 __iomem *addr_h;
1782 u32 __iomem *addr_l;
1783 u8 *p_counter;
1784
1785 uccf = ugeth->uccf;
1786
1787 p_82xx_addr_filt =
1788 (struct ucc_geth_82xx_address_filtering_pram __iomem *)
1789 ugeth->p_rx_glbl_pram->addressfiltering;
1790
1791 if (enet_addr_type == ENET_ADDR_TYPE_GROUP) {
1792 addr_h = &(p_82xx_addr_filt->gaddr_h);
1793 addr_l = &(p_82xx_addr_filt->gaddr_l);
1794 p_lh = &ugeth->group_hash_q;
1795 p_counter = &(ugeth->numGroupAddrInHash);
1796 } else if (enet_addr_type == ENET_ADDR_TYPE_INDIVIDUAL) {
1797 addr_h = &(p_82xx_addr_filt->iaddr_h);
1798 addr_l = &(p_82xx_addr_filt->iaddr_l);
1799 p_lh = &ugeth->ind_hash_q;
1800 p_counter = &(ugeth->numIndAddrInHash);
1801 } else
1802 return -EINVAL;
1803
1804 comm_dir = 0;
1805 if (uccf->enabled_tx)
1806 comm_dir |= COMM_DIR_TX;
1807 if (uccf->enabled_rx)
1808 comm_dir |= COMM_DIR_RX;
1809 if (comm_dir)
1810 ugeth_disable(ugeth, comm_dir);
1811
1812 /* Clear the hash table. */
1813 out_be32(addr_h, 0x00000000);
1814 out_be32(addr_l, 0x00000000);
1815
1816 if (!p_lh)
1817 return 0;
1818
1819 num = *p_counter;
1820
1821 /* Delete all remaining CQ elements */
1822 for (i = 0; i < num; i++)
1823 put_enet_addr_container(ENET_ADDR_CONT_ENTRY(dequeue(p_lh)));
1824
1825 *p_counter = 0;
1826
1827 if (comm_dir)
1828 ugeth_enable(ugeth, comm_dir);
1829
1830 return 0;
1831}
1832
1833static int ugeth_82xx_filtering_clear_addr_in_paddr(struct ucc_geth_private *ugeth,
1834 u8 paddr_num)
1835{
1836 ugeth->indAddrRegUsed[paddr_num] = 0; /* mark this paddr as not used */
1837 return hw_clear_addr_in_paddr(ugeth, paddr_num);/* clear in hardware */
1838}
1839
1840static void ucc_geth_free_rx(struct ucc_geth_private *ugeth)
1841{
1842 struct ucc_geth_info *ug_info;
1843 struct ucc_fast_info *uf_info;
1844 u16 i, j;
1845 u8 __iomem *bd;
1846
1847
1848 ug_info = ugeth->ug_info;
1849 uf_info = &ug_info->uf_info;
1850
1851 for (i = 0; i < ugeth->ug_info->numQueuesRx; i++) {
1852 if (ugeth->p_rx_bd_ring[i]) {
1853 /* Return existing data buffers in ring */
1854 bd = ugeth->p_rx_bd_ring[i];
1855 for (j = 0; j < ugeth->ug_info->bdRingLenRx[i]; j++) {
1856 if (ugeth->rx_skbuff[i][j]) {
1857 dma_unmap_single(ugeth->dev,
1858 in_be32(&((struct qe_bd __iomem *)bd)->buf),
1859 ugeth->ug_info->
1860 uf_info.max_rx_buf_length +
1861 UCC_GETH_RX_DATA_BUF_ALIGNMENT,
1862 DMA_FROM_DEVICE);
1863 dev_kfree_skb_any(
1864 ugeth->rx_skbuff[i][j]);
1865 ugeth->rx_skbuff[i][j] = NULL;
1866 }
1867 bd += sizeof(struct qe_bd);
1868 }
1869
1870 kfree(ugeth->rx_skbuff[i]);
1871
1872 if (ugeth->ug_info->uf_info.bd_mem_part ==
1873 MEM_PART_SYSTEM)
1874 kfree((void *)ugeth->rx_bd_ring_offset[i]);
1875 else if (ugeth->ug_info->uf_info.bd_mem_part ==
1876 MEM_PART_MURAM)
1877 qe_muram_free(ugeth->rx_bd_ring_offset[i]);
1878 ugeth->p_rx_bd_ring[i] = NULL;
1879 }
1880 }
1881
1882}
1883
1884static void ucc_geth_free_tx(struct ucc_geth_private *ugeth)
1885{
1886 struct ucc_geth_info *ug_info;
1887 struct ucc_fast_info *uf_info;
1888 u16 i, j;
1889 u8 __iomem *bd;
1890
1891 ug_info = ugeth->ug_info;
1892 uf_info = &ug_info->uf_info;
1893
1894 for (i = 0; i < ugeth->ug_info->numQueuesTx; i++) {
1895 bd = ugeth->p_tx_bd_ring[i];
1896 if (!bd)
1897 continue;
1898 for (j = 0; j < ugeth->ug_info->bdRingLenTx[i]; j++) {
1899 if (ugeth->tx_skbuff[i][j]) {
1900 dma_unmap_single(ugeth->dev,
1901 in_be32(&((struct qe_bd __iomem *)bd)->buf),
1902 (in_be32((u32 __iomem *)bd) &
1903 BD_LENGTH_MASK),
1904 DMA_TO_DEVICE);
1905 dev_kfree_skb_any(ugeth->tx_skbuff[i][j]);
1906 ugeth->tx_skbuff[i][j] = NULL;
1907 }
1908 }
1909
1910 kfree(ugeth->tx_skbuff[i]);
1911
1912 if (ugeth->p_tx_bd_ring[i]) {
1913 if (ugeth->ug_info->uf_info.bd_mem_part ==
1914 MEM_PART_SYSTEM)
1915 kfree((void *)ugeth->tx_bd_ring_offset[i]);
1916 else if (ugeth->ug_info->uf_info.bd_mem_part ==
1917 MEM_PART_MURAM)
1918 qe_muram_free(ugeth->tx_bd_ring_offset[i]);
1919 ugeth->p_tx_bd_ring[i] = NULL;
1920 }
1921 }
1922
1923}
1924
1925static void ucc_geth_memclean(struct ucc_geth_private *ugeth)
1926{
1927 if (!ugeth)
1928 return;
1929
1930 if (ugeth->uccf) {
1931 ucc_fast_free(ugeth->uccf);
1932 ugeth->uccf = NULL;
1933 }
1934
1935 if (ugeth->p_thread_data_tx) {
1936 qe_muram_free(ugeth->thread_dat_tx_offset);
1937 ugeth->p_thread_data_tx = NULL;
1938 }
1939 if (ugeth->p_thread_data_rx) {
1940 qe_muram_free(ugeth->thread_dat_rx_offset);
1941 ugeth->p_thread_data_rx = NULL;
1942 }
1943 if (ugeth->p_exf_glbl_param) {
1944 qe_muram_free(ugeth->exf_glbl_param_offset);
1945 ugeth->p_exf_glbl_param = NULL;
1946 }
1947 if (ugeth->p_rx_glbl_pram) {
1948 qe_muram_free(ugeth->rx_glbl_pram_offset);
1949 ugeth->p_rx_glbl_pram = NULL;
1950 }
1951 if (ugeth->p_tx_glbl_pram) {
1952 qe_muram_free(ugeth->tx_glbl_pram_offset);
1953 ugeth->p_tx_glbl_pram = NULL;
1954 }
1955 if (ugeth->p_send_q_mem_reg) {
1956 qe_muram_free(ugeth->send_q_mem_reg_offset);
1957 ugeth->p_send_q_mem_reg = NULL;
1958 }
1959 if (ugeth->p_scheduler) {
1960 qe_muram_free(ugeth->scheduler_offset);
1961 ugeth->p_scheduler = NULL;
1962 }
1963 if (ugeth->p_tx_fw_statistics_pram) {
1964 qe_muram_free(ugeth->tx_fw_statistics_pram_offset);
1965 ugeth->p_tx_fw_statistics_pram = NULL;
1966 }
1967 if (ugeth->p_rx_fw_statistics_pram) {
1968 qe_muram_free(ugeth->rx_fw_statistics_pram_offset);
1969 ugeth->p_rx_fw_statistics_pram = NULL;
1970 }
1971 if (ugeth->p_rx_irq_coalescing_tbl) {
1972 qe_muram_free(ugeth->rx_irq_coalescing_tbl_offset);
1973 ugeth->p_rx_irq_coalescing_tbl = NULL;
1974 }
1975 if (ugeth->p_rx_bd_qs_tbl) {
1976 qe_muram_free(ugeth->rx_bd_qs_tbl_offset);
1977 ugeth->p_rx_bd_qs_tbl = NULL;
1978 }
1979 if (ugeth->p_init_enet_param_shadow) {
1980 return_init_enet_entries(ugeth,
1981 &(ugeth->p_init_enet_param_shadow->
1982 rxthread[0]),
1983 ENET_INIT_PARAM_MAX_ENTRIES_RX,
1984 ugeth->ug_info->riscRx, 1);
1985 return_init_enet_entries(ugeth,
1986 &(ugeth->p_init_enet_param_shadow->
1987 txthread[0]),
1988 ENET_INIT_PARAM_MAX_ENTRIES_TX,
1989 ugeth->ug_info->riscTx, 0);
1990 kfree(ugeth->p_init_enet_param_shadow);
1991 ugeth->p_init_enet_param_shadow = NULL;
1992 }
1993 ucc_geth_free_tx(ugeth);
1994 ucc_geth_free_rx(ugeth);
1995 while (!list_empty(&ugeth->group_hash_q))
1996 put_enet_addr_container(ENET_ADDR_CONT_ENTRY
1997 (dequeue(&ugeth->group_hash_q)));
1998 while (!list_empty(&ugeth->ind_hash_q))
1999 put_enet_addr_container(ENET_ADDR_CONT_ENTRY
2000 (dequeue(&ugeth->ind_hash_q)));
2001 if (ugeth->ug_regs) {
2002 iounmap(ugeth->ug_regs);
2003 ugeth->ug_regs = NULL;
2004 }
2005}
2006
2007static void ucc_geth_set_multi(struct net_device *dev)
2008{
2009 struct ucc_geth_private *ugeth;
2010 struct netdev_hw_addr *ha;
2011 struct ucc_fast __iomem *uf_regs;
2012 struct ucc_geth_82xx_address_filtering_pram __iomem *p_82xx_addr_filt;
2013
2014 ugeth = netdev_priv(dev);
2015
2016 uf_regs = ugeth->uccf->uf_regs;
2017
2018 if (dev->flags & IFF_PROMISC) {
2019 setbits32(&uf_regs->upsmr, UCC_GETH_UPSMR_PRO);
2020 } else {
2021 clrbits32(&uf_regs->upsmr, UCC_GETH_UPSMR_PRO);
2022
2023 p_82xx_addr_filt =
2024 (struct ucc_geth_82xx_address_filtering_pram __iomem *) ugeth->
2025 p_rx_glbl_pram->addressfiltering;
2026
2027 if (dev->flags & IFF_ALLMULTI) {
2028 /* Catch all multicast addresses, so set the
2029 * filter to all 1's.
2030 */
2031 out_be32(&p_82xx_addr_filt->gaddr_h, 0xffffffff);
2032 out_be32(&p_82xx_addr_filt->gaddr_l, 0xffffffff);
2033 } else {
2034 /* Clear filter and add the addresses in the list.
2035 */
2036 out_be32(&p_82xx_addr_filt->gaddr_h, 0x0);
2037 out_be32(&p_82xx_addr_filt->gaddr_l, 0x0);
2038
2039 netdev_for_each_mc_addr(ha, dev) {
2040 /* Ask CPM to run CRC and set bit in
2041 * filter mask.
2042 */
2043 hw_add_addr_in_hash(ugeth, ha->addr);
2044 }
2045 }
2046 }
2047}
2048
2049static void ucc_geth_stop(struct ucc_geth_private *ugeth)
2050{
2051 struct ucc_geth __iomem *ug_regs = ugeth->ug_regs;
2052 struct phy_device *phydev = ugeth->phydev;
2053
2054 ugeth_vdbg("%s: IN", __func__);
2055
2056 /*
2057 * Tell the kernel the link is down.
2058 * Must be done before disabling the controller
2059 * or deadlock may happen.
2060 */
2061 phy_stop(phydev);
2062
2063 /* Disable the controller */
2064 ugeth_disable(ugeth, COMM_DIR_RX_AND_TX);
2065
2066 /* Mask all interrupts */
2067 out_be32(ugeth->uccf->p_uccm, 0x00000000);
2068
2069 /* Clear all interrupts */
2070 out_be32(ugeth->uccf->p_ucce, 0xffffffff);
2071
2072 /* Disable Rx and Tx */
2073 clrbits32(&ug_regs->maccfg1, MACCFG1_ENABLE_RX | MACCFG1_ENABLE_TX);
2074
2075 ucc_geth_memclean(ugeth);
2076}
2077
2078static int ucc_struct_init(struct ucc_geth_private *ugeth)
2079{
2080 struct ucc_geth_info *ug_info;
2081 struct ucc_fast_info *uf_info;
2082 int i;
2083
2084 ug_info = ugeth->ug_info;
2085 uf_info = &ug_info->uf_info;
2086
2087 if (!((uf_info->bd_mem_part == MEM_PART_SYSTEM) ||
2088 (uf_info->bd_mem_part == MEM_PART_MURAM))) {
2089 if (netif_msg_probe(ugeth))
2090 pr_err("Bad memory partition value\n");
2091 return -EINVAL;
2092 }
2093
2094 /* Rx BD lengths */
2095 for (i = 0; i < ug_info->numQueuesRx; i++) {
2096 if ((ug_info->bdRingLenRx[i] < UCC_GETH_RX_BD_RING_SIZE_MIN) ||
2097 (ug_info->bdRingLenRx[i] %
2098 UCC_GETH_RX_BD_RING_SIZE_ALIGNMENT)) {
2099 if (netif_msg_probe(ugeth))
2100 pr_err("Rx BD ring length must be multiple of 4, no smaller than 8\n");
2101 return -EINVAL;
2102 }
2103 }
2104
2105 /* Tx BD lengths */
2106 for (i = 0; i < ug_info->numQueuesTx; i++) {
2107 if (ug_info->bdRingLenTx[i] < UCC_GETH_TX_BD_RING_SIZE_MIN) {
2108 if (netif_msg_probe(ugeth))
2109 pr_err("Tx BD ring length must be no smaller than 2\n");
2110 return -EINVAL;
2111 }
2112 }
2113
2114 /* mrblr */
2115 if ((uf_info->max_rx_buf_length == 0) ||
2116 (uf_info->max_rx_buf_length % UCC_GETH_MRBLR_ALIGNMENT)) {
2117 if (netif_msg_probe(ugeth))
2118 pr_err("max_rx_buf_length must be non-zero multiple of 128\n");
2119 return -EINVAL;
2120 }
2121
2122 /* num Tx queues */
2123 if (ug_info->numQueuesTx > NUM_TX_QUEUES) {
2124 if (netif_msg_probe(ugeth))
2125 pr_err("number of tx queues too large\n");
2126 return -EINVAL;
2127 }
2128
2129 /* num Rx queues */
2130 if (ug_info->numQueuesRx > NUM_RX_QUEUES) {
2131 if (netif_msg_probe(ugeth))
2132 pr_err("number of rx queues too large\n");
2133 return -EINVAL;
2134 }
2135
2136 /* l2qt */
2137 for (i = 0; i < UCC_GETH_VLAN_PRIORITY_MAX; i++) {
2138 if (ug_info->l2qt[i] >= ug_info->numQueuesRx) {
2139 if (netif_msg_probe(ugeth))
2140 pr_err("VLAN priority table entry must not be larger than number of Rx queues\n");
2141 return -EINVAL;
2142 }
2143 }
2144
2145 /* l3qt */
2146 for (i = 0; i < UCC_GETH_IP_PRIORITY_MAX; i++) {
2147 if (ug_info->l3qt[i] >= ug_info->numQueuesRx) {
2148 if (netif_msg_probe(ugeth))
2149 pr_err("IP priority table entry must not be larger than number of Rx queues\n");
2150 return -EINVAL;
2151 }
2152 }
2153
2154 if (ug_info->cam && !ug_info->ecamptr) {
2155 if (netif_msg_probe(ugeth))
2156 pr_err("If cam mode is chosen, must supply cam ptr\n");
2157 return -EINVAL;
2158 }
2159
2160 if ((ug_info->numStationAddresses !=
2161 UCC_GETH_NUM_OF_STATION_ADDRESSES_1) &&
2162 ug_info->rxExtendedFiltering) {
2163 if (netif_msg_probe(ugeth))
2164 pr_err("Number of station addresses greater than 1 not allowed in extended parsing mode\n");
2165 return -EINVAL;
2166 }
2167
2168 /* Generate uccm_mask for receive */
2169 uf_info->uccm_mask = ug_info->eventRegMask & UCCE_OTHER;/* Errors */
2170 for (i = 0; i < ug_info->numQueuesRx; i++)
2171 uf_info->uccm_mask |= (UCC_GETH_UCCE_RXF0 << i);
2172
2173 for (i = 0; i < ug_info->numQueuesTx; i++)
2174 uf_info->uccm_mask |= (UCC_GETH_UCCE_TXB0 << i);
2175 /* Initialize the general fast UCC block. */
2176 if (ucc_fast_init(uf_info, &ugeth->uccf)) {
2177 if (netif_msg_probe(ugeth))
2178 pr_err("Failed to init uccf\n");
2179 return -ENOMEM;
2180 }
2181
2182 /* read the number of risc engines, update the riscTx and riscRx
2183 * if there are 4 riscs in QE
2184 */
2185 if (qe_get_num_of_risc() == 4) {
2186 ug_info->riscTx = QE_RISC_ALLOCATION_FOUR_RISCS;
2187 ug_info->riscRx = QE_RISC_ALLOCATION_FOUR_RISCS;
2188 }
2189
2190 ugeth->ug_regs = ioremap(uf_info->regs, sizeof(*ugeth->ug_regs));
2191 if (!ugeth->ug_regs) {
2192 if (netif_msg_probe(ugeth))
2193 pr_err("Failed to ioremap regs\n");
2194 return -ENOMEM;
2195 }
2196
2197 return 0;
2198}
2199
2200static int ucc_geth_alloc_tx(struct ucc_geth_private *ugeth)
2201{
2202 struct ucc_geth_info *ug_info;
2203 struct ucc_fast_info *uf_info;
2204 int length;
2205 u16 i, j;
2206 u8 __iomem *bd;
2207
2208 ug_info = ugeth->ug_info;
2209 uf_info = &ug_info->uf_info;
2210
2211 /* Allocate Tx bds */
2212 for (j = 0; j < ug_info->numQueuesTx; j++) {
2213 /* Allocate in multiple of
2214 UCC_GETH_TX_BD_RING_SIZE_MEMORY_ALIGNMENT,
2215 according to spec */
2216 length = ((ug_info->bdRingLenTx[j] * sizeof(struct qe_bd))
2217 / UCC_GETH_TX_BD_RING_SIZE_MEMORY_ALIGNMENT)
2218 * UCC_GETH_TX_BD_RING_SIZE_MEMORY_ALIGNMENT;
2219 if ((ug_info->bdRingLenTx[j] * sizeof(struct qe_bd)) %
2220 UCC_GETH_TX_BD_RING_SIZE_MEMORY_ALIGNMENT)
2221 length += UCC_GETH_TX_BD_RING_SIZE_MEMORY_ALIGNMENT;
2222 if (uf_info->bd_mem_part == MEM_PART_SYSTEM) {
2223 u32 align = 4;
2224 if (UCC_GETH_TX_BD_RING_ALIGNMENT > 4)
2225 align = UCC_GETH_TX_BD_RING_ALIGNMENT;
2226 ugeth->tx_bd_ring_offset[j] =
2227 (u32) kmalloc((u32) (length + align), GFP_KERNEL);
2228
2229 if (ugeth->tx_bd_ring_offset[j] != 0)
2230 ugeth->p_tx_bd_ring[j] =
2231 (u8 __iomem *)((ugeth->tx_bd_ring_offset[j] +
2232 align) & ~(align - 1));
2233 } else if (uf_info->bd_mem_part == MEM_PART_MURAM) {
2234 ugeth->tx_bd_ring_offset[j] =
2235 qe_muram_alloc(length,
2236 UCC_GETH_TX_BD_RING_ALIGNMENT);
2237 if (!IS_ERR_VALUE(ugeth->tx_bd_ring_offset[j]))
2238 ugeth->p_tx_bd_ring[j] =
2239 (u8 __iomem *) qe_muram_addr(ugeth->
2240 tx_bd_ring_offset[j]);
2241 }
2242 if (!ugeth->p_tx_bd_ring[j]) {
2243 if (netif_msg_ifup(ugeth))
2244 pr_err("Can not allocate memory for Tx bd rings\n");
2245 return -ENOMEM;
2246 }
2247 /* Zero unused end of bd ring, according to spec */
2248 memset_io((void __iomem *)(ugeth->p_tx_bd_ring[j] +
2249 ug_info->bdRingLenTx[j] * sizeof(struct qe_bd)), 0,
2250 length - ug_info->bdRingLenTx[j] * sizeof(struct qe_bd));
2251 }
2252
2253 /* Init Tx bds */
2254 for (j = 0; j < ug_info->numQueuesTx; j++) {
2255 /* Setup the skbuff rings */
2256 ugeth->tx_skbuff[j] = kmalloc(sizeof(struct sk_buff *) *
2257 ugeth->ug_info->bdRingLenTx[j],
2258 GFP_KERNEL);
2259
2260 if (ugeth->tx_skbuff[j] == NULL) {
2261 if (netif_msg_ifup(ugeth))
2262 pr_err("Could not allocate tx_skbuff\n");
2263 return -ENOMEM;
2264 }
2265
2266 for (i = 0; i < ugeth->ug_info->bdRingLenTx[j]; i++)
2267 ugeth->tx_skbuff[j][i] = NULL;
2268
2269 ugeth->skb_curtx[j] = ugeth->skb_dirtytx[j] = 0;
2270 bd = ugeth->confBd[j] = ugeth->txBd[j] = ugeth->p_tx_bd_ring[j];
2271 for (i = 0; i < ug_info->bdRingLenTx[j]; i++) {
2272 /* clear bd buffer */
2273 out_be32(&((struct qe_bd __iomem *)bd)->buf, 0);
2274 /* set bd status and length */
2275 out_be32((u32 __iomem *)bd, 0);
2276 bd += sizeof(struct qe_bd);
2277 }
2278 bd -= sizeof(struct qe_bd);
2279 /* set bd status and length */
2280 out_be32((u32 __iomem *)bd, T_W); /* for last BD set Wrap bit */
2281 }
2282
2283 return 0;
2284}
2285
2286static int ucc_geth_alloc_rx(struct ucc_geth_private *ugeth)
2287{
2288 struct ucc_geth_info *ug_info;
2289 struct ucc_fast_info *uf_info;
2290 int length;
2291 u16 i, j;
2292 u8 __iomem *bd;
2293
2294 ug_info = ugeth->ug_info;
2295 uf_info = &ug_info->uf_info;
2296
2297 /* Allocate Rx bds */
2298 for (j = 0; j < ug_info->numQueuesRx; j++) {
2299 length = ug_info->bdRingLenRx[j] * sizeof(struct qe_bd);
2300 if (uf_info->bd_mem_part == MEM_PART_SYSTEM) {
2301 u32 align = 4;
2302 if (UCC_GETH_RX_BD_RING_ALIGNMENT > 4)
2303 align = UCC_GETH_RX_BD_RING_ALIGNMENT;
2304 ugeth->rx_bd_ring_offset[j] =
2305 (u32) kmalloc((u32) (length + align), GFP_KERNEL);
2306 if (ugeth->rx_bd_ring_offset[j] != 0)
2307 ugeth->p_rx_bd_ring[j] =
2308 (u8 __iomem *)((ugeth->rx_bd_ring_offset[j] +
2309 align) & ~(align - 1));
2310 } else if (uf_info->bd_mem_part == MEM_PART_MURAM) {
2311 ugeth->rx_bd_ring_offset[j] =
2312 qe_muram_alloc(length,
2313 UCC_GETH_RX_BD_RING_ALIGNMENT);
2314 if (!IS_ERR_VALUE(ugeth->rx_bd_ring_offset[j]))
2315 ugeth->p_rx_bd_ring[j] =
2316 (u8 __iomem *) qe_muram_addr(ugeth->
2317 rx_bd_ring_offset[j]);
2318 }
2319 if (!ugeth->p_rx_bd_ring[j]) {
2320 if (netif_msg_ifup(ugeth))
2321 pr_err("Can not allocate memory for Rx bd rings\n");
2322 return -ENOMEM;
2323 }
2324 }
2325
2326 /* Init Rx bds */
2327 for (j = 0; j < ug_info->numQueuesRx; j++) {
2328 /* Setup the skbuff rings */
2329 ugeth->rx_skbuff[j] = kmalloc(sizeof(struct sk_buff *) *
2330 ugeth->ug_info->bdRingLenRx[j],
2331 GFP_KERNEL);
2332
2333 if (ugeth->rx_skbuff[j] == NULL) {
2334 if (netif_msg_ifup(ugeth))
2335 pr_err("Could not allocate rx_skbuff\n");
2336 return -ENOMEM;
2337 }
2338
2339 for (i = 0; i < ugeth->ug_info->bdRingLenRx[j]; i++)
2340 ugeth->rx_skbuff[j][i] = NULL;
2341
2342 ugeth->skb_currx[j] = 0;
2343 bd = ugeth->rxBd[j] = ugeth->p_rx_bd_ring[j];
2344 for (i = 0; i < ug_info->bdRingLenRx[j]; i++) {
2345 /* set bd status and length */
2346 out_be32((u32 __iomem *)bd, R_I);
2347 /* clear bd buffer */
2348 out_be32(&((struct qe_bd __iomem *)bd)->buf, 0);
2349 bd += sizeof(struct qe_bd);
2350 }
2351 bd -= sizeof(struct qe_bd);
2352 /* set bd status and length */
2353 out_be32((u32 __iomem *)bd, R_W); /* for last BD set Wrap bit */
2354 }
2355
2356 return 0;
2357}
2358
2359static int ucc_geth_startup(struct ucc_geth_private *ugeth)
2360{
2361 struct ucc_geth_82xx_address_filtering_pram __iomem *p_82xx_addr_filt;
2362 struct ucc_geth_init_pram __iomem *p_init_enet_pram;
2363 struct ucc_fast_private *uccf;
2364 struct ucc_geth_info *ug_info;
2365 struct ucc_fast_info *uf_info;
2366 struct ucc_fast __iomem *uf_regs;
2367 struct ucc_geth __iomem *ug_regs;
2368 int ret_val = -EINVAL;
2369 u32 remoder = UCC_GETH_REMODER_INIT;
2370 u32 init_enet_pram_offset, cecr_subblock, command;
2371 u32 ifstat, i, j, size, l2qt, l3qt;
2372 u16 temoder = UCC_GETH_TEMODER_INIT;
2373 u16 test;
2374 u8 function_code = 0;
2375 u8 __iomem *endOfRing;
2376 u8 numThreadsRxNumerical, numThreadsTxNumerical;
2377
2378 ugeth_vdbg("%s: IN", __func__);
2379 uccf = ugeth->uccf;
2380 ug_info = ugeth->ug_info;
2381 uf_info = &ug_info->uf_info;
2382 uf_regs = uccf->uf_regs;
2383 ug_regs = ugeth->ug_regs;
2384
2385 switch (ug_info->numThreadsRx) {
2386 case UCC_GETH_NUM_OF_THREADS_1:
2387 numThreadsRxNumerical = 1;
2388 break;
2389 case UCC_GETH_NUM_OF_THREADS_2:
2390 numThreadsRxNumerical = 2;
2391 break;
2392 case UCC_GETH_NUM_OF_THREADS_4:
2393 numThreadsRxNumerical = 4;
2394 break;
2395 case UCC_GETH_NUM_OF_THREADS_6:
2396 numThreadsRxNumerical = 6;
2397 break;
2398 case UCC_GETH_NUM_OF_THREADS_8:
2399 numThreadsRxNumerical = 8;
2400 break;
2401 default:
2402 if (netif_msg_ifup(ugeth))
2403 pr_err("Bad number of Rx threads value\n");
2404 return -EINVAL;
2405 }
2406
2407 switch (ug_info->numThreadsTx) {
2408 case UCC_GETH_NUM_OF_THREADS_1:
2409 numThreadsTxNumerical = 1;
2410 break;
2411 case UCC_GETH_NUM_OF_THREADS_2:
2412 numThreadsTxNumerical = 2;
2413 break;
2414 case UCC_GETH_NUM_OF_THREADS_4:
2415 numThreadsTxNumerical = 4;
2416 break;
2417 case UCC_GETH_NUM_OF_THREADS_6:
2418 numThreadsTxNumerical = 6;
2419 break;
2420 case UCC_GETH_NUM_OF_THREADS_8:
2421 numThreadsTxNumerical = 8;
2422 break;
2423 default:
2424 if (netif_msg_ifup(ugeth))
2425 pr_err("Bad number of Tx threads value\n");
2426 return -EINVAL;
2427 }
2428
2429 /* Calculate rx_extended_features */
2430 ugeth->rx_non_dynamic_extended_features = ug_info->ipCheckSumCheck ||
2431 ug_info->ipAddressAlignment ||
2432 (ug_info->numStationAddresses !=
2433 UCC_GETH_NUM_OF_STATION_ADDRESSES_1);
2434
2435 ugeth->rx_extended_features = ugeth->rx_non_dynamic_extended_features ||
2436 (ug_info->vlanOperationTagged != UCC_GETH_VLAN_OPERATION_TAGGED_NOP) ||
2437 (ug_info->vlanOperationNonTagged !=
2438 UCC_GETH_VLAN_OPERATION_NON_TAGGED_NOP);
2439
2440 init_default_reg_vals(&uf_regs->upsmr,
2441 &ug_regs->maccfg1, &ug_regs->maccfg2);
2442
2443 /* Set UPSMR */
2444 /* For more details see the hardware spec. */
2445 init_rx_parameters(ug_info->bro,
2446 ug_info->rsh, ug_info->pro, &uf_regs->upsmr);
2447
2448 /* We're going to ignore other registers for now, */
2449 /* except as needed to get up and running */
2450
2451 /* Set MACCFG1 */
2452 /* For more details see the hardware spec. */
2453 init_flow_control_params(ug_info->aufc,
2454 ug_info->receiveFlowControl,
2455 ug_info->transmitFlowControl,
2456 ug_info->pausePeriod,
2457 ug_info->extensionField,
2458 &uf_regs->upsmr,
2459 &ug_regs->uempr, &ug_regs->maccfg1);
2460
2461 setbits32(&ug_regs->maccfg1, MACCFG1_ENABLE_RX | MACCFG1_ENABLE_TX);
2462
2463 /* Set IPGIFG */
2464 /* For more details see the hardware spec. */
2465 ret_val = init_inter_frame_gap_params(ug_info->nonBackToBackIfgPart1,
2466 ug_info->nonBackToBackIfgPart2,
2467 ug_info->
2468 miminumInterFrameGapEnforcement,
2469 ug_info->backToBackInterFrameGap,
2470 &ug_regs->ipgifg);
2471 if (ret_val != 0) {
2472 if (netif_msg_ifup(ugeth))
2473 pr_err("IPGIFG initialization parameter too large\n");
2474 return ret_val;
2475 }
2476
2477 /* Set HAFDUP */
2478 /* For more details see the hardware spec. */
2479 ret_val = init_half_duplex_params(ug_info->altBeb,
2480 ug_info->backPressureNoBackoff,
2481 ug_info->noBackoff,
2482 ug_info->excessDefer,
2483 ug_info->altBebTruncation,
2484 ug_info->maxRetransmission,
2485 ug_info->collisionWindow,
2486 &ug_regs->hafdup);
2487 if (ret_val != 0) {
2488 if (netif_msg_ifup(ugeth))
2489 pr_err("Half Duplex initialization parameter too large\n");
2490 return ret_val;
2491 }
2492
2493 /* Set IFSTAT */
2494 /* For more details see the hardware spec. */
2495 /* Read only - resets upon read */
2496 ifstat = in_be32(&ug_regs->ifstat);
2497
2498 /* Clear UEMPR */
2499 /* For more details see the hardware spec. */
2500 out_be32(&ug_regs->uempr, 0);
2501
2502 /* Set UESCR */
2503 /* For more details see the hardware spec. */
2504 init_hw_statistics_gathering_mode((ug_info->statisticsMode &
2505 UCC_GETH_STATISTICS_GATHERING_MODE_HARDWARE),
2506 0, &uf_regs->upsmr, &ug_regs->uescr);
2507
2508 ret_val = ucc_geth_alloc_tx(ugeth);
2509 if (ret_val != 0)
2510 return ret_val;
2511
2512 ret_val = ucc_geth_alloc_rx(ugeth);
2513 if (ret_val != 0)
2514 return ret_val;
2515
2516 /*
2517 * Global PRAM
2518 */
2519 /* Tx global PRAM */
2520 /* Allocate global tx parameter RAM page */
2521 ugeth->tx_glbl_pram_offset =
2522 qe_muram_alloc(sizeof(struct ucc_geth_tx_global_pram),
2523 UCC_GETH_TX_GLOBAL_PRAM_ALIGNMENT);
2524 if (IS_ERR_VALUE(ugeth->tx_glbl_pram_offset)) {
2525 if (netif_msg_ifup(ugeth))
2526 pr_err("Can not allocate DPRAM memory for p_tx_glbl_pram\n");
2527 return -ENOMEM;
2528 }
2529 ugeth->p_tx_glbl_pram =
2530 (struct ucc_geth_tx_global_pram __iomem *) qe_muram_addr(ugeth->
2531 tx_glbl_pram_offset);
2532 /* Zero out p_tx_glbl_pram */
2533 memset_io((void __iomem *)ugeth->p_tx_glbl_pram, 0, sizeof(struct ucc_geth_tx_global_pram));
2534
2535 /* Fill global PRAM */
2536
2537 /* TQPTR */
2538 /* Size varies with number of Tx threads */
2539 ugeth->thread_dat_tx_offset =
2540 qe_muram_alloc(numThreadsTxNumerical *
2541 sizeof(struct ucc_geth_thread_data_tx) +
2542 32 * (numThreadsTxNumerical == 1),
2543 UCC_GETH_THREAD_DATA_ALIGNMENT);
2544 if (IS_ERR_VALUE(ugeth->thread_dat_tx_offset)) {
2545 if (netif_msg_ifup(ugeth))
2546 pr_err("Can not allocate DPRAM memory for p_thread_data_tx\n");
2547 return -ENOMEM;
2548 }
2549
2550 ugeth->p_thread_data_tx =
2551 (struct ucc_geth_thread_data_tx __iomem *) qe_muram_addr(ugeth->
2552 thread_dat_tx_offset);
2553 out_be32(&ugeth->p_tx_glbl_pram->tqptr, ugeth->thread_dat_tx_offset);
2554
2555 /* vtagtable */
2556 for (i = 0; i < UCC_GETH_TX_VTAG_TABLE_ENTRY_MAX; i++)
2557 out_be32(&ugeth->p_tx_glbl_pram->vtagtable[i],
2558 ug_info->vtagtable[i]);
2559
2560 /* iphoffset */
2561 for (i = 0; i < TX_IP_OFFSET_ENTRY_MAX; i++)
2562 out_8(&ugeth->p_tx_glbl_pram->iphoffset[i],
2563 ug_info->iphoffset[i]);
2564
2565 /* SQPTR */
2566 /* Size varies with number of Tx queues */
2567 ugeth->send_q_mem_reg_offset =
2568 qe_muram_alloc(ug_info->numQueuesTx *
2569 sizeof(struct ucc_geth_send_queue_qd),
2570 UCC_GETH_SEND_QUEUE_QUEUE_DESCRIPTOR_ALIGNMENT);
2571 if (IS_ERR_VALUE(ugeth->send_q_mem_reg_offset)) {
2572 if (netif_msg_ifup(ugeth))
2573 pr_err("Can not allocate DPRAM memory for p_send_q_mem_reg\n");
2574 return -ENOMEM;
2575 }
2576
2577 ugeth->p_send_q_mem_reg =
2578 (struct ucc_geth_send_queue_mem_region __iomem *) qe_muram_addr(ugeth->
2579 send_q_mem_reg_offset);
2580 out_be32(&ugeth->p_tx_glbl_pram->sqptr, ugeth->send_q_mem_reg_offset);
2581
2582 /* Setup the table */
2583 /* Assume BD rings are already established */
2584 for (i = 0; i < ug_info->numQueuesTx; i++) {
2585 endOfRing =
2586 ugeth->p_tx_bd_ring[i] + (ug_info->bdRingLenTx[i] -
2587 1) * sizeof(struct qe_bd);
2588 if (ugeth->ug_info->uf_info.bd_mem_part == MEM_PART_SYSTEM) {
2589 out_be32(&ugeth->p_send_q_mem_reg->sqqd[i].bd_ring_base,
2590 (u32) virt_to_phys(ugeth->p_tx_bd_ring[i]));
2591 out_be32(&ugeth->p_send_q_mem_reg->sqqd[i].
2592 last_bd_completed_address,
2593 (u32) virt_to_phys(endOfRing));
2594 } else if (ugeth->ug_info->uf_info.bd_mem_part ==
2595 MEM_PART_MURAM) {
2596 out_be32(&ugeth->p_send_q_mem_reg->sqqd[i].bd_ring_base,
2597 (u32)qe_muram_dma(ugeth->p_tx_bd_ring[i]));
2598 out_be32(&ugeth->p_send_q_mem_reg->sqqd[i].
2599 last_bd_completed_address,
2600 (u32)qe_muram_dma(endOfRing));
2601 }
2602 }
2603
2604 /* schedulerbasepointer */
2605
2606 if (ug_info->numQueuesTx > 1) {
2607 /* scheduler exists only if more than 1 tx queue */
2608 ugeth->scheduler_offset =
2609 qe_muram_alloc(sizeof(struct ucc_geth_scheduler),
2610 UCC_GETH_SCHEDULER_ALIGNMENT);
2611 if (IS_ERR_VALUE(ugeth->scheduler_offset)) {
2612 if (netif_msg_ifup(ugeth))
2613 pr_err("Can not allocate DPRAM memory for p_scheduler\n");
2614 return -ENOMEM;
2615 }
2616
2617 ugeth->p_scheduler =
2618 (struct ucc_geth_scheduler __iomem *) qe_muram_addr(ugeth->
2619 scheduler_offset);
2620 out_be32(&ugeth->p_tx_glbl_pram->schedulerbasepointer,
2621 ugeth->scheduler_offset);
2622 /* Zero out p_scheduler */
2623 memset_io((void __iomem *)ugeth->p_scheduler, 0, sizeof(struct ucc_geth_scheduler));
2624
2625 /* Set values in scheduler */
2626 out_be32(&ugeth->p_scheduler->mblinterval,
2627 ug_info->mblinterval);
2628 out_be16(&ugeth->p_scheduler->nortsrbytetime,
2629 ug_info->nortsrbytetime);
2630 out_8(&ugeth->p_scheduler->fracsiz, ug_info->fracsiz);
2631 out_8(&ugeth->p_scheduler->strictpriorityq,
2632 ug_info->strictpriorityq);
2633 out_8(&ugeth->p_scheduler->txasap, ug_info->txasap);
2634 out_8(&ugeth->p_scheduler->extrabw, ug_info->extrabw);
2635 for (i = 0; i < NUM_TX_QUEUES; i++)
2636 out_8(&ugeth->p_scheduler->weightfactor[i],
2637 ug_info->weightfactor[i]);
2638
2639 /* Set pointers to cpucount registers in scheduler */
2640 ugeth->p_cpucount[0] = &(ugeth->p_scheduler->cpucount0);
2641 ugeth->p_cpucount[1] = &(ugeth->p_scheduler->cpucount1);
2642 ugeth->p_cpucount[2] = &(ugeth->p_scheduler->cpucount2);
2643 ugeth->p_cpucount[3] = &(ugeth->p_scheduler->cpucount3);
2644 ugeth->p_cpucount[4] = &(ugeth->p_scheduler->cpucount4);
2645 ugeth->p_cpucount[5] = &(ugeth->p_scheduler->cpucount5);
2646 ugeth->p_cpucount[6] = &(ugeth->p_scheduler->cpucount6);
2647 ugeth->p_cpucount[7] = &(ugeth->p_scheduler->cpucount7);
2648 }
2649
2650 /* schedulerbasepointer */
2651 /* TxRMON_PTR (statistics) */
2652 if (ug_info->
2653 statisticsMode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_TX) {
2654 ugeth->tx_fw_statistics_pram_offset =
2655 qe_muram_alloc(sizeof
2656 (struct ucc_geth_tx_firmware_statistics_pram),
2657 UCC_GETH_TX_STATISTICS_ALIGNMENT);
2658 if (IS_ERR_VALUE(ugeth->tx_fw_statistics_pram_offset)) {
2659 if (netif_msg_ifup(ugeth))
2660 pr_err("Can not allocate DPRAM memory for p_tx_fw_statistics_pram\n");
2661 return -ENOMEM;
2662 }
2663 ugeth->p_tx_fw_statistics_pram =
2664 (struct ucc_geth_tx_firmware_statistics_pram __iomem *)
2665 qe_muram_addr(ugeth->tx_fw_statistics_pram_offset);
2666 /* Zero out p_tx_fw_statistics_pram */
2667 memset_io((void __iomem *)ugeth->p_tx_fw_statistics_pram,
2668 0, sizeof(struct ucc_geth_tx_firmware_statistics_pram));
2669 }
2670
2671 /* temoder */
2672 /* Already has speed set */
2673
2674 if (ug_info->numQueuesTx > 1)
2675 temoder |= TEMODER_SCHEDULER_ENABLE;
2676 if (ug_info->ipCheckSumGenerate)
2677 temoder |= TEMODER_IP_CHECKSUM_GENERATE;
2678 temoder |= ((ug_info->numQueuesTx - 1) << TEMODER_NUM_OF_QUEUES_SHIFT);
2679 out_be16(&ugeth->p_tx_glbl_pram->temoder, temoder);
2680
2681 test = in_be16(&ugeth->p_tx_glbl_pram->temoder);
2682
2683 /* Function code register value to be used later */
2684 function_code = UCC_BMR_BO_BE | UCC_BMR_GBL;
2685 /* Required for QE */
2686
2687 /* function code register */
2688 out_be32(&ugeth->p_tx_glbl_pram->tstate, ((u32) function_code) << 24);
2689
2690 /* Rx global PRAM */
2691 /* Allocate global rx parameter RAM page */
2692 ugeth->rx_glbl_pram_offset =
2693 qe_muram_alloc(sizeof(struct ucc_geth_rx_global_pram),
2694 UCC_GETH_RX_GLOBAL_PRAM_ALIGNMENT);
2695 if (IS_ERR_VALUE(ugeth->rx_glbl_pram_offset)) {
2696 if (netif_msg_ifup(ugeth))
2697 pr_err("Can not allocate DPRAM memory for p_rx_glbl_pram\n");
2698 return -ENOMEM;
2699 }
2700 ugeth->p_rx_glbl_pram =
2701 (struct ucc_geth_rx_global_pram __iomem *) qe_muram_addr(ugeth->
2702 rx_glbl_pram_offset);
2703 /* Zero out p_rx_glbl_pram */
2704 memset_io((void __iomem *)ugeth->p_rx_glbl_pram, 0, sizeof(struct ucc_geth_rx_global_pram));
2705
2706 /* Fill global PRAM */
2707
2708 /* RQPTR */
2709 /* Size varies with number of Rx threads */
2710 ugeth->thread_dat_rx_offset =
2711 qe_muram_alloc(numThreadsRxNumerical *
2712 sizeof(struct ucc_geth_thread_data_rx),
2713 UCC_GETH_THREAD_DATA_ALIGNMENT);
2714 if (IS_ERR_VALUE(ugeth->thread_dat_rx_offset)) {
2715 if (netif_msg_ifup(ugeth))
2716 pr_err("Can not allocate DPRAM memory for p_thread_data_rx\n");
2717 return -ENOMEM;
2718 }
2719
2720 ugeth->p_thread_data_rx =
2721 (struct ucc_geth_thread_data_rx __iomem *) qe_muram_addr(ugeth->
2722 thread_dat_rx_offset);
2723 out_be32(&ugeth->p_rx_glbl_pram->rqptr, ugeth->thread_dat_rx_offset);
2724
2725 /* typeorlen */
2726 out_be16(&ugeth->p_rx_glbl_pram->typeorlen, ug_info->typeorlen);
2727
2728 /* rxrmonbaseptr (statistics) */
2729 if (ug_info->
2730 statisticsMode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_RX) {
2731 ugeth->rx_fw_statistics_pram_offset =
2732 qe_muram_alloc(sizeof
2733 (struct ucc_geth_rx_firmware_statistics_pram),
2734 UCC_GETH_RX_STATISTICS_ALIGNMENT);
2735 if (IS_ERR_VALUE(ugeth->rx_fw_statistics_pram_offset)) {
2736 if (netif_msg_ifup(ugeth))
2737 pr_err("Can not allocate DPRAM memory for p_rx_fw_statistics_pram\n");
2738 return -ENOMEM;
2739 }
2740 ugeth->p_rx_fw_statistics_pram =
2741 (struct ucc_geth_rx_firmware_statistics_pram __iomem *)
2742 qe_muram_addr(ugeth->rx_fw_statistics_pram_offset);
2743 /* Zero out p_rx_fw_statistics_pram */
2744 memset_io((void __iomem *)ugeth->p_rx_fw_statistics_pram, 0,
2745 sizeof(struct ucc_geth_rx_firmware_statistics_pram));
2746 }
2747
2748 /* intCoalescingPtr */
2749
2750 /* Size varies with number of Rx queues */
2751 ugeth->rx_irq_coalescing_tbl_offset =
2752 qe_muram_alloc(ug_info->numQueuesRx *
2753 sizeof(struct ucc_geth_rx_interrupt_coalescing_entry)
2754 + 4, UCC_GETH_RX_INTERRUPT_COALESCING_ALIGNMENT);
2755 if (IS_ERR_VALUE(ugeth->rx_irq_coalescing_tbl_offset)) {
2756 if (netif_msg_ifup(ugeth))
2757 pr_err("Can not allocate DPRAM memory for p_rx_irq_coalescing_tbl\n");
2758 return -ENOMEM;
2759 }
2760
2761 ugeth->p_rx_irq_coalescing_tbl =
2762 (struct ucc_geth_rx_interrupt_coalescing_table __iomem *)
2763 qe_muram_addr(ugeth->rx_irq_coalescing_tbl_offset);
2764 out_be32(&ugeth->p_rx_glbl_pram->intcoalescingptr,
2765 ugeth->rx_irq_coalescing_tbl_offset);
2766
2767 /* Fill interrupt coalescing table */
2768 for (i = 0; i < ug_info->numQueuesRx; i++) {
2769 out_be32(&ugeth->p_rx_irq_coalescing_tbl->coalescingentry[i].
2770 interruptcoalescingmaxvalue,
2771 ug_info->interruptcoalescingmaxvalue[i]);
2772 out_be32(&ugeth->p_rx_irq_coalescing_tbl->coalescingentry[i].
2773 interruptcoalescingcounter,
2774 ug_info->interruptcoalescingmaxvalue[i]);
2775 }
2776
2777 /* MRBLR */
2778 init_max_rx_buff_len(uf_info->max_rx_buf_length,
2779 &ugeth->p_rx_glbl_pram->mrblr);
2780 /* MFLR */
2781 out_be16(&ugeth->p_rx_glbl_pram->mflr, ug_info->maxFrameLength);
2782 /* MINFLR */
2783 init_min_frame_len(ug_info->minFrameLength,
2784 &ugeth->p_rx_glbl_pram->minflr,
2785 &ugeth->p_rx_glbl_pram->mrblr);
2786 /* MAXD1 */
2787 out_be16(&ugeth->p_rx_glbl_pram->maxd1, ug_info->maxD1Length);
2788 /* MAXD2 */
2789 out_be16(&ugeth->p_rx_glbl_pram->maxd2, ug_info->maxD2Length);
2790
2791 /* l2qt */
2792 l2qt = 0;
2793 for (i = 0; i < UCC_GETH_VLAN_PRIORITY_MAX; i++)
2794 l2qt |= (ug_info->l2qt[i] << (28 - 4 * i));
2795 out_be32(&ugeth->p_rx_glbl_pram->l2qt, l2qt);
2796
2797 /* l3qt */
2798 for (j = 0; j < UCC_GETH_IP_PRIORITY_MAX; j += 8) {
2799 l3qt = 0;
2800 for (i = 0; i < 8; i++)
2801 l3qt |= (ug_info->l3qt[j + i] << (28 - 4 * i));
2802 out_be32(&ugeth->p_rx_glbl_pram->l3qt[j/8], l3qt);
2803 }
2804
2805 /* vlantype */
2806 out_be16(&ugeth->p_rx_glbl_pram->vlantype, ug_info->vlantype);
2807
2808 /* vlantci */
2809 out_be16(&ugeth->p_rx_glbl_pram->vlantci, ug_info->vlantci);
2810
2811 /* ecamptr */
2812 out_be32(&ugeth->p_rx_glbl_pram->ecamptr, ug_info->ecamptr);
2813
2814 /* RBDQPTR */
2815 /* Size varies with number of Rx queues */
2816 ugeth->rx_bd_qs_tbl_offset =
2817 qe_muram_alloc(ug_info->numQueuesRx *
2818 (sizeof(struct ucc_geth_rx_bd_queues_entry) +
2819 sizeof(struct ucc_geth_rx_prefetched_bds)),
2820 UCC_GETH_RX_BD_QUEUES_ALIGNMENT);
2821 if (IS_ERR_VALUE(ugeth->rx_bd_qs_tbl_offset)) {
2822 if (netif_msg_ifup(ugeth))
2823 pr_err("Can not allocate DPRAM memory for p_rx_bd_qs_tbl\n");
2824 return -ENOMEM;
2825 }
2826
2827 ugeth->p_rx_bd_qs_tbl =
2828 (struct ucc_geth_rx_bd_queues_entry __iomem *) qe_muram_addr(ugeth->
2829 rx_bd_qs_tbl_offset);
2830 out_be32(&ugeth->p_rx_glbl_pram->rbdqptr, ugeth->rx_bd_qs_tbl_offset);
2831 /* Zero out p_rx_bd_qs_tbl */
2832 memset_io((void __iomem *)ugeth->p_rx_bd_qs_tbl,
2833 0,
2834 ug_info->numQueuesRx * (sizeof(struct ucc_geth_rx_bd_queues_entry) +
2835 sizeof(struct ucc_geth_rx_prefetched_bds)));
2836
2837 /* Setup the table */
2838 /* Assume BD rings are already established */
2839 for (i = 0; i < ug_info->numQueuesRx; i++) {
2840 if (ugeth->ug_info->uf_info.bd_mem_part == MEM_PART_SYSTEM) {
2841 out_be32(&ugeth->p_rx_bd_qs_tbl[i].externalbdbaseptr,
2842 (u32) virt_to_phys(ugeth->p_rx_bd_ring[i]));
2843 } else if (ugeth->ug_info->uf_info.bd_mem_part ==
2844 MEM_PART_MURAM) {
2845 out_be32(&ugeth->p_rx_bd_qs_tbl[i].externalbdbaseptr,
2846 (u32)qe_muram_dma(ugeth->p_rx_bd_ring[i]));
2847 }
2848 /* rest of fields handled by QE */
2849 }
2850
2851 /* remoder */
2852 /* Already has speed set */
2853
2854 if (ugeth->rx_extended_features)
2855 remoder |= REMODER_RX_EXTENDED_FEATURES;
2856 if (ug_info->rxExtendedFiltering)
2857 remoder |= REMODER_RX_EXTENDED_FILTERING;
2858 if (ug_info->dynamicMaxFrameLength)
2859 remoder |= REMODER_DYNAMIC_MAX_FRAME_LENGTH;
2860 if (ug_info->dynamicMinFrameLength)
2861 remoder |= REMODER_DYNAMIC_MIN_FRAME_LENGTH;
2862 remoder |=
2863 ug_info->vlanOperationTagged << REMODER_VLAN_OPERATION_TAGGED_SHIFT;
2864 remoder |=
2865 ug_info->
2866 vlanOperationNonTagged << REMODER_VLAN_OPERATION_NON_TAGGED_SHIFT;
2867 remoder |= ug_info->rxQoSMode << REMODER_RX_QOS_MODE_SHIFT;
2868 remoder |= ((ug_info->numQueuesRx - 1) << REMODER_NUM_OF_QUEUES_SHIFT);
2869 if (ug_info->ipCheckSumCheck)
2870 remoder |= REMODER_IP_CHECKSUM_CHECK;
2871 if (ug_info->ipAddressAlignment)
2872 remoder |= REMODER_IP_ADDRESS_ALIGNMENT;
2873 out_be32(&ugeth->p_rx_glbl_pram->remoder, remoder);
2874
2875 /* Note that this function must be called */
2876 /* ONLY AFTER p_tx_fw_statistics_pram */
2877 /* andp_UccGethRxFirmwareStatisticsPram are allocated ! */
2878 init_firmware_statistics_gathering_mode((ug_info->
2879 statisticsMode &
2880 UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_TX),
2881 (ug_info->statisticsMode &
2882 UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_RX),
2883 &ugeth->p_tx_glbl_pram->txrmonbaseptr,
2884 ugeth->tx_fw_statistics_pram_offset,
2885 &ugeth->p_rx_glbl_pram->rxrmonbaseptr,
2886 ugeth->rx_fw_statistics_pram_offset,
2887 &ugeth->p_tx_glbl_pram->temoder,
2888 &ugeth->p_rx_glbl_pram->remoder);
2889
2890 /* function code register */
2891 out_8(&ugeth->p_rx_glbl_pram->rstate, function_code);
2892
2893 /* initialize extended filtering */
2894 if (ug_info->rxExtendedFiltering) {
2895 if (!ug_info->extendedFilteringChainPointer) {
2896 if (netif_msg_ifup(ugeth))
2897 pr_err("Null Extended Filtering Chain Pointer\n");
2898 return -EINVAL;
2899 }
2900
2901 /* Allocate memory for extended filtering Mode Global
2902 Parameters */
2903 ugeth->exf_glbl_param_offset =
2904 qe_muram_alloc(sizeof(struct ucc_geth_exf_global_pram),
2905 UCC_GETH_RX_EXTENDED_FILTERING_GLOBAL_PARAMETERS_ALIGNMENT);
2906 if (IS_ERR_VALUE(ugeth->exf_glbl_param_offset)) {
2907 if (netif_msg_ifup(ugeth))
2908 pr_err("Can not allocate DPRAM memory for p_exf_glbl_param\n");
2909 return -ENOMEM;
2910 }
2911
2912 ugeth->p_exf_glbl_param =
2913 (struct ucc_geth_exf_global_pram __iomem *) qe_muram_addr(ugeth->
2914 exf_glbl_param_offset);
2915 out_be32(&ugeth->p_rx_glbl_pram->exfGlobalParam,
2916 ugeth->exf_glbl_param_offset);
2917 out_be32(&ugeth->p_exf_glbl_param->l2pcdptr,
2918 (u32) ug_info->extendedFilteringChainPointer);
2919
2920 } else { /* initialize 82xx style address filtering */
2921
2922 /* Init individual address recognition registers to disabled */
2923
2924 for (j = 0; j < NUM_OF_PADDRS; j++)
2925 ugeth_82xx_filtering_clear_addr_in_paddr(ugeth, (u8) j);
2926
2927 p_82xx_addr_filt =
2928 (struct ucc_geth_82xx_address_filtering_pram __iomem *) ugeth->
2929 p_rx_glbl_pram->addressfiltering;
2930
2931 ugeth_82xx_filtering_clear_all_addr_in_hash(ugeth,
2932 ENET_ADDR_TYPE_GROUP);
2933 ugeth_82xx_filtering_clear_all_addr_in_hash(ugeth,
2934 ENET_ADDR_TYPE_INDIVIDUAL);
2935 }
2936
2937 /*
2938 * Initialize UCC at QE level
2939 */
2940
2941 command = QE_INIT_TX_RX;
2942
2943 /* Allocate shadow InitEnet command parameter structure.
2944 * This is needed because after the InitEnet command is executed,
2945 * the structure in DPRAM is released, because DPRAM is a premium
2946 * resource.
2947 * This shadow structure keeps a copy of what was done so that the
2948 * allocated resources can be released when the channel is freed.
2949 */
2950 if (!(ugeth->p_init_enet_param_shadow =
2951 kmalloc(sizeof(struct ucc_geth_init_pram), GFP_KERNEL))) {
2952 if (netif_msg_ifup(ugeth))
2953 pr_err("Can not allocate memory for p_UccInitEnetParamShadows\n");
2954 return -ENOMEM;
2955 }
2956 /* Zero out *p_init_enet_param_shadow */
2957 memset((char *)ugeth->p_init_enet_param_shadow,
2958 0, sizeof(struct ucc_geth_init_pram));
2959
2960 /* Fill shadow InitEnet command parameter structure */
2961
2962 ugeth->p_init_enet_param_shadow->resinit1 =
2963 ENET_INIT_PARAM_MAGIC_RES_INIT1;
2964 ugeth->p_init_enet_param_shadow->resinit2 =
2965 ENET_INIT_PARAM_MAGIC_RES_INIT2;
2966 ugeth->p_init_enet_param_shadow->resinit3 =
2967 ENET_INIT_PARAM_MAGIC_RES_INIT3;
2968 ugeth->p_init_enet_param_shadow->resinit4 =
2969 ENET_INIT_PARAM_MAGIC_RES_INIT4;
2970 ugeth->p_init_enet_param_shadow->resinit5 =
2971 ENET_INIT_PARAM_MAGIC_RES_INIT5;
2972 ugeth->p_init_enet_param_shadow->rgftgfrxglobal |=
2973 ((u32) ug_info->numThreadsRx) << ENET_INIT_PARAM_RGF_SHIFT;
2974 ugeth->p_init_enet_param_shadow->rgftgfrxglobal |=
2975 ((u32) ug_info->numThreadsTx) << ENET_INIT_PARAM_TGF_SHIFT;
2976
2977 ugeth->p_init_enet_param_shadow->rgftgfrxglobal |=
2978 ugeth->rx_glbl_pram_offset | ug_info->riscRx;
2979 if ((ug_info->largestexternallookupkeysize !=
2980 QE_FLTR_LARGEST_EXTERNAL_TABLE_LOOKUP_KEY_SIZE_NONE) &&
2981 (ug_info->largestexternallookupkeysize !=
2982 QE_FLTR_LARGEST_EXTERNAL_TABLE_LOOKUP_KEY_SIZE_8_BYTES) &&
2983 (ug_info->largestexternallookupkeysize !=
2984 QE_FLTR_LARGEST_EXTERNAL_TABLE_LOOKUP_KEY_SIZE_16_BYTES)) {
2985 if (netif_msg_ifup(ugeth))
2986 pr_err("Invalid largest External Lookup Key Size\n");
2987 return -EINVAL;
2988 }
2989 ugeth->p_init_enet_param_shadow->largestexternallookupkeysize =
2990 ug_info->largestexternallookupkeysize;
2991 size = sizeof(struct ucc_geth_thread_rx_pram);
2992 if (ug_info->rxExtendedFiltering) {
2993 size += THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING;
2994 if (ug_info->largestexternallookupkeysize ==
2995 QE_FLTR_LARGEST_EXTERNAL_TABLE_LOOKUP_KEY_SIZE_8_BYTES)
2996 size +=
2997 THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING_8;
2998 if (ug_info->largestexternallookupkeysize ==
2999 QE_FLTR_LARGEST_EXTERNAL_TABLE_LOOKUP_KEY_SIZE_16_BYTES)
3000 size +=
3001 THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING_16;
3002 }
3003
3004 if ((ret_val = fill_init_enet_entries(ugeth, &(ugeth->
3005 p_init_enet_param_shadow->rxthread[0]),
3006 (u8) (numThreadsRxNumerical + 1)
3007 /* Rx needs one extra for terminator */
3008 , size, UCC_GETH_THREAD_RX_PRAM_ALIGNMENT,
3009 ug_info->riscRx, 1)) != 0) {
3010 if (netif_msg_ifup(ugeth))
3011 pr_err("Can not fill p_init_enet_param_shadow\n");
3012 return ret_val;
3013 }
3014
3015 ugeth->p_init_enet_param_shadow->txglobal =
3016 ugeth->tx_glbl_pram_offset | ug_info->riscTx;
3017 if ((ret_val =
3018 fill_init_enet_entries(ugeth,
3019 &(ugeth->p_init_enet_param_shadow->
3020 txthread[0]), numThreadsTxNumerical,
3021 sizeof(struct ucc_geth_thread_tx_pram),
3022 UCC_GETH_THREAD_TX_PRAM_ALIGNMENT,
3023 ug_info->riscTx, 0)) != 0) {
3024 if (netif_msg_ifup(ugeth))
3025 pr_err("Can not fill p_init_enet_param_shadow\n");
3026 return ret_val;
3027 }
3028
3029 /* Load Rx bds with buffers */
3030 for (i = 0; i < ug_info->numQueuesRx; i++) {
3031 if ((ret_val = rx_bd_buffer_set(ugeth, (u8) i)) != 0) {
3032 if (netif_msg_ifup(ugeth))
3033 pr_err("Can not fill Rx bds with buffers\n");
3034 return ret_val;
3035 }
3036 }
3037
3038 /* Allocate InitEnet command parameter structure */
3039 init_enet_pram_offset = qe_muram_alloc(sizeof(struct ucc_geth_init_pram), 4);
3040 if (IS_ERR_VALUE(init_enet_pram_offset)) {
3041 if (netif_msg_ifup(ugeth))
3042 pr_err("Can not allocate DPRAM memory for p_init_enet_pram\n");
3043 return -ENOMEM;
3044 }
3045 p_init_enet_pram =
3046 (struct ucc_geth_init_pram __iomem *) qe_muram_addr(init_enet_pram_offset);
3047
3048 /* Copy shadow InitEnet command parameter structure into PRAM */
3049 out_8(&p_init_enet_pram->resinit1,
3050 ugeth->p_init_enet_param_shadow->resinit1);
3051 out_8(&p_init_enet_pram->resinit2,
3052 ugeth->p_init_enet_param_shadow->resinit2);
3053 out_8(&p_init_enet_pram->resinit3,
3054 ugeth->p_init_enet_param_shadow->resinit3);
3055 out_8(&p_init_enet_pram->resinit4,
3056 ugeth->p_init_enet_param_shadow->resinit4);
3057 out_be16(&p_init_enet_pram->resinit5,
3058 ugeth->p_init_enet_param_shadow->resinit5);
3059 out_8(&p_init_enet_pram->largestexternallookupkeysize,
3060 ugeth->p_init_enet_param_shadow->largestexternallookupkeysize);
3061 out_be32(&p_init_enet_pram->rgftgfrxglobal,
3062 ugeth->p_init_enet_param_shadow->rgftgfrxglobal);
3063 for (i = 0; i < ENET_INIT_PARAM_MAX_ENTRIES_RX; i++)
3064 out_be32(&p_init_enet_pram->rxthread[i],
3065 ugeth->p_init_enet_param_shadow->rxthread[i]);
3066 out_be32(&p_init_enet_pram->txglobal,
3067 ugeth->p_init_enet_param_shadow->txglobal);
3068 for (i = 0; i < ENET_INIT_PARAM_MAX_ENTRIES_TX; i++)
3069 out_be32(&p_init_enet_pram->txthread[i],
3070 ugeth->p_init_enet_param_shadow->txthread[i]);
3071
3072 /* Issue QE command */
3073 cecr_subblock =
3074 ucc_fast_get_qe_cr_subblock(ugeth->ug_info->uf_info.ucc_num);
3075 qe_issue_cmd(command, cecr_subblock, QE_CR_PROTOCOL_ETHERNET,
3076 init_enet_pram_offset);
3077
3078 /* Free InitEnet command parameter */
3079 qe_muram_free(init_enet_pram_offset);
3080
3081 return 0;
3082}
3083
3084/* This is called by the kernel when a frame is ready for transmission. */
3085/* It is pointed to by the dev->hard_start_xmit function pointer */
3086static int ucc_geth_start_xmit(struct sk_buff *skb, struct net_device *dev)
3087{
3088 struct ucc_geth_private *ugeth = netdev_priv(dev);
3089#ifdef CONFIG_UGETH_TX_ON_DEMAND
3090 struct ucc_fast_private *uccf;
3091#endif
3092 u8 __iomem *bd; /* BD pointer */
3093 u32 bd_status;
3094 u8 txQ = 0;
3095 unsigned long flags;
3096
3097 ugeth_vdbg("%s: IN", __func__);
3098
3099 spin_lock_irqsave(&ugeth->lock, flags);
3100
3101 dev->stats.tx_bytes += skb->len;
3102
3103 /* Start from the next BD that should be filled */
3104 bd = ugeth->txBd[txQ];
3105 bd_status = in_be32((u32 __iomem *)bd);
3106 /* Save the skb pointer so we can free it later */
3107 ugeth->tx_skbuff[txQ][ugeth->skb_curtx[txQ]] = skb;
3108
3109 /* Update the current skb pointer (wrapping if this was the last) */
3110 ugeth->skb_curtx[txQ] =
3111 (ugeth->skb_curtx[txQ] +
3112 1) & TX_RING_MOD_MASK(ugeth->ug_info->bdRingLenTx[txQ]);
3113
3114 /* set up the buffer descriptor */
3115 out_be32(&((struct qe_bd __iomem *)bd)->buf,
3116 dma_map_single(ugeth->dev, skb->data,
3117 skb->len, DMA_TO_DEVICE));
3118
3119 /* printk(KERN_DEBUG"skb->data is 0x%x\n",skb->data); */
3120
3121 bd_status = (bd_status & T_W) | T_R | T_I | T_L | skb->len;
3122
3123 /* set bd status and length */
3124 out_be32((u32 __iomem *)bd, bd_status);
3125
3126 /* Move to next BD in the ring */
3127 if (!(bd_status & T_W))
3128 bd += sizeof(struct qe_bd);
3129 else
3130 bd = ugeth->p_tx_bd_ring[txQ];
3131
3132 /* If the next BD still needs to be cleaned up, then the bds
3133 are full. We need to tell the kernel to stop sending us stuff. */
3134 if (bd == ugeth->confBd[txQ]) {
3135 if (!netif_queue_stopped(dev))
3136 netif_stop_queue(dev);
3137 }
3138
3139 ugeth->txBd[txQ] = bd;
3140
3141 skb_tx_timestamp(skb);
3142
3143 if (ugeth->p_scheduler) {
3144 ugeth->cpucount[txQ]++;
3145 /* Indicate to QE that there are more Tx bds ready for
3146 transmission */
3147 /* This is done by writing a running counter of the bd
3148 count to the scheduler PRAM. */
3149 out_be16(ugeth->p_cpucount[txQ], ugeth->cpucount[txQ]);
3150 }
3151
3152#ifdef CONFIG_UGETH_TX_ON_DEMAND
3153 uccf = ugeth->uccf;
3154 out_be16(uccf->p_utodr, UCC_FAST_TOD);
3155#endif
3156 spin_unlock_irqrestore(&ugeth->lock, flags);
3157
3158 return NETDEV_TX_OK;
3159}
3160
3161static int ucc_geth_rx(struct ucc_geth_private *ugeth, u8 rxQ, int rx_work_limit)
3162{
3163 struct sk_buff *skb;
3164 u8 __iomem *bd;
3165 u16 length, howmany = 0;
3166 u32 bd_status;
3167 u8 *bdBuffer;
3168 struct net_device *dev;
3169
3170 ugeth_vdbg("%s: IN", __func__);
3171
3172 dev = ugeth->ndev;
3173
3174 /* collect received buffers */
3175 bd = ugeth->rxBd[rxQ];
3176
3177 bd_status = in_be32((u32 __iomem *)bd);
3178
3179 /* while there are received buffers and BD is full (~R_E) */
3180 while (!((bd_status & (R_E)) || (--rx_work_limit < 0))) {
3181 bdBuffer = (u8 *) in_be32(&((struct qe_bd __iomem *)bd)->buf);
3182 length = (u16) ((bd_status & BD_LENGTH_MASK) - 4);
3183 skb = ugeth->rx_skbuff[rxQ][ugeth->skb_currx[rxQ]];
3184
3185 /* determine whether buffer is first, last, first and last
3186 (single buffer frame) or middle (not first and not last) */
3187 if (!skb ||
3188 (!(bd_status & (R_F | R_L))) ||
3189 (bd_status & R_ERRORS_FATAL)) {
3190 if (netif_msg_rx_err(ugeth))
3191 pr_err("%d: ERROR!!! skb - 0x%08x\n",
3192 __LINE__, (u32)skb);
3193 dev_kfree_skb(skb);
3194
3195 ugeth->rx_skbuff[rxQ][ugeth->skb_currx[rxQ]] = NULL;
3196 dev->stats.rx_dropped++;
3197 } else {
3198 dev->stats.rx_packets++;
3199 howmany++;
3200
3201 /* Prep the skb for the packet */
3202 skb_put(skb, length);
3203
3204 /* Tell the skb what kind of packet this is */
3205 skb->protocol = eth_type_trans(skb, ugeth->ndev);
3206
3207 dev->stats.rx_bytes += length;
3208 /* Send the packet up the stack */
3209 netif_receive_skb(skb);
3210 }
3211
3212 skb = get_new_skb(ugeth, bd);
3213 if (!skb) {
3214 if (netif_msg_rx_err(ugeth))
3215 pr_warn("No Rx Data Buffer\n");
3216 dev->stats.rx_dropped++;
3217 break;
3218 }
3219
3220 ugeth->rx_skbuff[rxQ][ugeth->skb_currx[rxQ]] = skb;
3221
3222 /* update to point at the next skb */
3223 ugeth->skb_currx[rxQ] =
3224 (ugeth->skb_currx[rxQ] +
3225 1) & RX_RING_MOD_MASK(ugeth->ug_info->bdRingLenRx[rxQ]);
3226
3227 if (bd_status & R_W)
3228 bd = ugeth->p_rx_bd_ring[rxQ];
3229 else
3230 bd += sizeof(struct qe_bd);
3231
3232 bd_status = in_be32((u32 __iomem *)bd);
3233 }
3234
3235 ugeth->rxBd[rxQ] = bd;
3236 return howmany;
3237}
3238
3239static int ucc_geth_tx(struct net_device *dev, u8 txQ)
3240{
3241 /* Start from the next BD that should be filled */
3242 struct ucc_geth_private *ugeth = netdev_priv(dev);
3243 u8 __iomem *bd; /* BD pointer */
3244 u32 bd_status;
3245
3246 bd = ugeth->confBd[txQ];
3247 bd_status = in_be32((u32 __iomem *)bd);
3248
3249 /* Normal processing. */
3250 while ((bd_status & T_R) == 0) {
3251 struct sk_buff *skb;
3252
3253 /* BD contains already transmitted buffer. */
3254 /* Handle the transmitted buffer and release */
3255 /* the BD to be used with the current frame */
3256
3257 skb = ugeth->tx_skbuff[txQ][ugeth->skb_dirtytx[txQ]];
3258 if (!skb)
3259 break;
3260
3261 dev->stats.tx_packets++;
3262
3263 dev_consume_skb_any(skb);
3264
3265 ugeth->tx_skbuff[txQ][ugeth->skb_dirtytx[txQ]] = NULL;
3266 ugeth->skb_dirtytx[txQ] =
3267 (ugeth->skb_dirtytx[txQ] +
3268 1) & TX_RING_MOD_MASK(ugeth->ug_info->bdRingLenTx[txQ]);
3269
3270 /* We freed a buffer, so now we can restart transmission */
3271 if (netif_queue_stopped(dev))
3272 netif_wake_queue(dev);
3273
3274 /* Advance the confirmation BD pointer */
3275 if (!(bd_status & T_W))
3276 bd += sizeof(struct qe_bd);
3277 else
3278 bd = ugeth->p_tx_bd_ring[txQ];
3279 bd_status = in_be32((u32 __iomem *)bd);
3280 }
3281 ugeth->confBd[txQ] = bd;
3282 return 0;
3283}
3284
3285static int ucc_geth_poll(struct napi_struct *napi, int budget)
3286{
3287 struct ucc_geth_private *ugeth = container_of(napi, struct ucc_geth_private, napi);
3288 struct ucc_geth_info *ug_info;
3289 int howmany, i;
3290
3291 ug_info = ugeth->ug_info;
3292
3293 /* Tx event processing */
3294 spin_lock(&ugeth->lock);
3295 for (i = 0; i < ug_info->numQueuesTx; i++)
3296 ucc_geth_tx(ugeth->ndev, i);
3297 spin_unlock(&ugeth->lock);
3298
3299 howmany = 0;
3300 for (i = 0; i < ug_info->numQueuesRx; i++)
3301 howmany += ucc_geth_rx(ugeth, i, budget - howmany);
3302
3303 if (howmany < budget) {
3304 napi_complete_done(napi, howmany);
3305 setbits32(ugeth->uccf->p_uccm, UCCE_RX_EVENTS | UCCE_TX_EVENTS);
3306 }
3307
3308 return howmany;
3309}
3310
3311static irqreturn_t ucc_geth_irq_handler(int irq, void *info)
3312{
3313 struct net_device *dev = info;
3314 struct ucc_geth_private *ugeth = netdev_priv(dev);
3315 struct ucc_fast_private *uccf;
3316 struct ucc_geth_info *ug_info;
3317 register u32 ucce;
3318 register u32 uccm;
3319
3320 ugeth_vdbg("%s: IN", __func__);
3321
3322 uccf = ugeth->uccf;
3323 ug_info = ugeth->ug_info;
3324
3325 /* read and clear events */
3326 ucce = (u32) in_be32(uccf->p_ucce);
3327 uccm = (u32) in_be32(uccf->p_uccm);
3328 ucce &= uccm;
3329 out_be32(uccf->p_ucce, ucce);
3330
3331 /* check for receive events that require processing */
3332 if (ucce & (UCCE_RX_EVENTS | UCCE_TX_EVENTS)) {
3333 if (napi_schedule_prep(&ugeth->napi)) {
3334 uccm &= ~(UCCE_RX_EVENTS | UCCE_TX_EVENTS);
3335 out_be32(uccf->p_uccm, uccm);
3336 __napi_schedule(&ugeth->napi);
3337 }
3338 }
3339
3340 /* Errors and other events */
3341 if (ucce & UCCE_OTHER) {
3342 if (ucce & UCC_GETH_UCCE_BSY)
3343 dev->stats.rx_errors++;
3344 if (ucce & UCC_GETH_UCCE_TXE)
3345 dev->stats.tx_errors++;
3346 }
3347
3348 return IRQ_HANDLED;
3349}
3350
3351#ifdef CONFIG_NET_POLL_CONTROLLER
3352/*
3353 * Polling 'interrupt' - used by things like netconsole to send skbs
3354 * without having to re-enable interrupts. It's not called while
3355 * the interrupt routine is executing.
3356 */
3357static void ucc_netpoll(struct net_device *dev)
3358{
3359 struct ucc_geth_private *ugeth = netdev_priv(dev);
3360 int irq = ugeth->ug_info->uf_info.irq;
3361
3362 disable_irq(irq);
3363 ucc_geth_irq_handler(irq, dev);
3364 enable_irq(irq);
3365}
3366#endif /* CONFIG_NET_POLL_CONTROLLER */
3367
3368static int ucc_geth_set_mac_addr(struct net_device *dev, void *p)
3369{
3370 struct ucc_geth_private *ugeth = netdev_priv(dev);
3371 struct sockaddr *addr = p;
3372
3373 if (!is_valid_ether_addr(addr->sa_data))
3374 return -EADDRNOTAVAIL;
3375
3376 memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
3377
3378 /*
3379 * If device is not running, we will set mac addr register
3380 * when opening the device.
3381 */
3382 if (!netif_running(dev))
3383 return 0;
3384
3385 spin_lock_irq(&ugeth->lock);
3386 init_mac_station_addr_regs(dev->dev_addr[0],
3387 dev->dev_addr[1],
3388 dev->dev_addr[2],
3389 dev->dev_addr[3],
3390 dev->dev_addr[4],
3391 dev->dev_addr[5],
3392 &ugeth->ug_regs->macstnaddr1,
3393 &ugeth->ug_regs->macstnaddr2);
3394 spin_unlock_irq(&ugeth->lock);
3395
3396 return 0;
3397}
3398
3399static int ucc_geth_init_mac(struct ucc_geth_private *ugeth)
3400{
3401 struct net_device *dev = ugeth->ndev;
3402 int err;
3403
3404 err = ucc_struct_init(ugeth);
3405 if (err) {
3406 netif_err(ugeth, ifup, dev, "Cannot configure internal struct, aborting\n");
3407 goto err;
3408 }
3409
3410 err = ucc_geth_startup(ugeth);
3411 if (err) {
3412 netif_err(ugeth, ifup, dev, "Cannot configure net device, aborting\n");
3413 goto err;
3414 }
3415
3416 err = adjust_enet_interface(ugeth);
3417 if (err) {
3418 netif_err(ugeth, ifup, dev, "Cannot configure net device, aborting\n");
3419 goto err;
3420 }
3421
3422 /* Set MACSTNADDR1, MACSTNADDR2 */
3423 /* For more details see the hardware spec. */
3424 init_mac_station_addr_regs(dev->dev_addr[0],
3425 dev->dev_addr[1],
3426 dev->dev_addr[2],
3427 dev->dev_addr[3],
3428 dev->dev_addr[4],
3429 dev->dev_addr[5],
3430 &ugeth->ug_regs->macstnaddr1,
3431 &ugeth->ug_regs->macstnaddr2);
3432
3433 err = ugeth_enable(ugeth, COMM_DIR_RX_AND_TX);
3434 if (err) {
3435 netif_err(ugeth, ifup, dev, "Cannot enable net device, aborting\n");
3436 goto err;
3437 }
3438
3439 return 0;
3440err:
3441 ucc_geth_stop(ugeth);
3442 return err;
3443}
3444
3445/* Called when something needs to use the ethernet device */
3446/* Returns 0 for success. */
3447static int ucc_geth_open(struct net_device *dev)
3448{
3449 struct ucc_geth_private *ugeth = netdev_priv(dev);
3450 int err;
3451
3452 ugeth_vdbg("%s: IN", __func__);
3453
3454 /* Test station address */
3455 if (dev->dev_addr[0] & ENET_GROUP_ADDR) {
3456 netif_err(ugeth, ifup, dev,
3457 "Multicast address used for station address - is this what you wanted?\n");
3458 return -EINVAL;
3459 }
3460
3461 err = init_phy(dev);
3462 if (err) {
3463 netif_err(ugeth, ifup, dev, "Cannot initialize PHY, aborting\n");
3464 return err;
3465 }
3466
3467 err = ucc_geth_init_mac(ugeth);
3468 if (err) {
3469 netif_err(ugeth, ifup, dev, "Cannot initialize MAC, aborting\n");
3470 goto err;
3471 }
3472
3473 err = request_irq(ugeth->ug_info->uf_info.irq, ucc_geth_irq_handler,
3474 0, "UCC Geth", dev);
3475 if (err) {
3476 netif_err(ugeth, ifup, dev, "Cannot get IRQ for net device, aborting\n");
3477 goto err;
3478 }
3479
3480 phy_start(ugeth->phydev);
3481 napi_enable(&ugeth->napi);
3482 netif_start_queue(dev);
3483
3484 device_set_wakeup_capable(&dev->dev,
3485 qe_alive_during_sleep() || ugeth->phydev->irq);
3486 device_set_wakeup_enable(&dev->dev, ugeth->wol_en);
3487
3488 return err;
3489
3490err:
3491 ucc_geth_stop(ugeth);
3492 return err;
3493}
3494
3495/* Stops the kernel queue, and halts the controller */
3496static int ucc_geth_close(struct net_device *dev)
3497{
3498 struct ucc_geth_private *ugeth = netdev_priv(dev);
3499
3500 ugeth_vdbg("%s: IN", __func__);
3501
3502 napi_disable(&ugeth->napi);
3503
3504 cancel_work_sync(&ugeth->timeout_work);
3505 ucc_geth_stop(ugeth);
3506 phy_disconnect(ugeth->phydev);
3507 ugeth->phydev = NULL;
3508
3509 free_irq(ugeth->ug_info->uf_info.irq, ugeth->ndev);
3510
3511 netif_stop_queue(dev);
3512
3513 return 0;
3514}
3515
3516/* Reopen device. This will reset the MAC and PHY. */
3517static void ucc_geth_timeout_work(struct work_struct *work)
3518{
3519 struct ucc_geth_private *ugeth;
3520 struct net_device *dev;
3521
3522 ugeth = container_of(work, struct ucc_geth_private, timeout_work);
3523 dev = ugeth->ndev;
3524
3525 ugeth_vdbg("%s: IN", __func__);
3526
3527 dev->stats.tx_errors++;
3528
3529 ugeth_dump_regs(ugeth);
3530
3531 if (dev->flags & IFF_UP) {
3532 /*
3533 * Must reset MAC *and* PHY. This is done by reopening
3534 * the device.
3535 */
3536 netif_tx_stop_all_queues(dev);
3537 ucc_geth_stop(ugeth);
3538 ucc_geth_init_mac(ugeth);
3539 /* Must start PHY here */
3540 phy_start(ugeth->phydev);
3541 netif_tx_start_all_queues(dev);
3542 }
3543
3544 netif_tx_schedule_all(dev);
3545}
3546
3547/*
3548 * ucc_geth_timeout gets called when a packet has not been
3549 * transmitted after a set amount of time.
3550 */
3551static void ucc_geth_timeout(struct net_device *dev)
3552{
3553 struct ucc_geth_private *ugeth = netdev_priv(dev);
3554
3555 schedule_work(&ugeth->timeout_work);
3556}
3557
3558
3559#ifdef CONFIG_PM
3560
3561static int ucc_geth_suspend(struct platform_device *ofdev, pm_message_t state)
3562{
3563 struct net_device *ndev = platform_get_drvdata(ofdev);
3564 struct ucc_geth_private *ugeth = netdev_priv(ndev);
3565
3566 if (!netif_running(ndev))
3567 return 0;
3568
3569 netif_device_detach(ndev);
3570 napi_disable(&ugeth->napi);
3571
3572 /*
3573 * Disable the controller, otherwise we'll wakeup on any network
3574 * activity.
3575 */
3576 ugeth_disable(ugeth, COMM_DIR_RX_AND_TX);
3577
3578 if (ugeth->wol_en & WAKE_MAGIC) {
3579 setbits32(ugeth->uccf->p_uccm, UCC_GETH_UCCE_MPD);
3580 setbits32(&ugeth->ug_regs->maccfg2, MACCFG2_MPE);
3581 ucc_fast_enable(ugeth->uccf, COMM_DIR_RX_AND_TX);
3582 } else if (!(ugeth->wol_en & WAKE_PHY)) {
3583 phy_stop(ugeth->phydev);
3584 }
3585
3586 return 0;
3587}
3588
3589static int ucc_geth_resume(struct platform_device *ofdev)
3590{
3591 struct net_device *ndev = platform_get_drvdata(ofdev);
3592 struct ucc_geth_private *ugeth = netdev_priv(ndev);
3593 int err;
3594
3595 if (!netif_running(ndev))
3596 return 0;
3597
3598 if (qe_alive_during_sleep()) {
3599 if (ugeth->wol_en & WAKE_MAGIC) {
3600 ucc_fast_disable(ugeth->uccf, COMM_DIR_RX_AND_TX);
3601 clrbits32(&ugeth->ug_regs->maccfg2, MACCFG2_MPE);
3602 clrbits32(ugeth->uccf->p_uccm, UCC_GETH_UCCE_MPD);
3603 }
3604 ugeth_enable(ugeth, COMM_DIR_RX_AND_TX);
3605 } else {
3606 /*
3607 * Full reinitialization is required if QE shuts down
3608 * during sleep.
3609 */
3610 ucc_geth_memclean(ugeth);
3611
3612 err = ucc_geth_init_mac(ugeth);
3613 if (err) {
3614 netdev_err(ndev, "Cannot initialize MAC, aborting\n");
3615 return err;
3616 }
3617 }
3618
3619 ugeth->oldlink = 0;
3620 ugeth->oldspeed = 0;
3621 ugeth->oldduplex = -1;
3622
3623 phy_stop(ugeth->phydev);
3624 phy_start(ugeth->phydev);
3625
3626 napi_enable(&ugeth->napi);
3627 netif_device_attach(ndev);
3628
3629 return 0;
3630}
3631
3632#else
3633#define ucc_geth_suspend NULL
3634#define ucc_geth_resume NULL
3635#endif
3636
3637static phy_interface_t to_phy_interface(const char *phy_connection_type)
3638{
3639 if (strcasecmp(phy_connection_type, "mii") == 0)
3640 return PHY_INTERFACE_MODE_MII;
3641 if (strcasecmp(phy_connection_type, "gmii") == 0)
3642 return PHY_INTERFACE_MODE_GMII;
3643 if (strcasecmp(phy_connection_type, "tbi") == 0)
3644 return PHY_INTERFACE_MODE_TBI;
3645 if (strcasecmp(phy_connection_type, "rmii") == 0)
3646 return PHY_INTERFACE_MODE_RMII;
3647 if (strcasecmp(phy_connection_type, "rgmii") == 0)
3648 return PHY_INTERFACE_MODE_RGMII;
3649 if (strcasecmp(phy_connection_type, "rgmii-id") == 0)
3650 return PHY_INTERFACE_MODE_RGMII_ID;
3651 if (strcasecmp(phy_connection_type, "rgmii-txid") == 0)
3652 return PHY_INTERFACE_MODE_RGMII_TXID;
3653 if (strcasecmp(phy_connection_type, "rgmii-rxid") == 0)
3654 return PHY_INTERFACE_MODE_RGMII_RXID;
3655 if (strcasecmp(phy_connection_type, "rtbi") == 0)
3656 return PHY_INTERFACE_MODE_RTBI;
3657 if (strcasecmp(phy_connection_type, "sgmii") == 0)
3658 return PHY_INTERFACE_MODE_SGMII;
3659
3660 return PHY_INTERFACE_MODE_MII;
3661}
3662
3663static int ucc_geth_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
3664{
3665 struct ucc_geth_private *ugeth = netdev_priv(dev);
3666
3667 if (!netif_running(dev))
3668 return -EINVAL;
3669
3670 if (!ugeth->phydev)
3671 return -ENODEV;
3672
3673 return phy_mii_ioctl(ugeth->phydev, rq, cmd);
3674}
3675
3676static const struct net_device_ops ucc_geth_netdev_ops = {
3677 .ndo_open = ucc_geth_open,
3678 .ndo_stop = ucc_geth_close,
3679 .ndo_start_xmit = ucc_geth_start_xmit,
3680 .ndo_validate_addr = eth_validate_addr,
3681 .ndo_set_mac_address = ucc_geth_set_mac_addr,
3682 .ndo_set_rx_mode = ucc_geth_set_multi,
3683 .ndo_tx_timeout = ucc_geth_timeout,
3684 .ndo_do_ioctl = ucc_geth_ioctl,
3685#ifdef CONFIG_NET_POLL_CONTROLLER
3686 .ndo_poll_controller = ucc_netpoll,
3687#endif
3688};
3689
3690static int ucc_geth_probe(struct platform_device* ofdev)
3691{
3692 struct device *device = &ofdev->dev;
3693 struct device_node *np = ofdev->dev.of_node;
3694 struct net_device *dev = NULL;
3695 struct ucc_geth_private *ugeth = NULL;
3696 struct ucc_geth_info *ug_info;
3697 struct resource res;
3698 int err, ucc_num, max_speed = 0;
3699 const unsigned int *prop;
3700 const char *sprop;
3701 const void *mac_addr;
3702 phy_interface_t phy_interface;
3703 static const int enet_to_speed[] = {
3704 SPEED_10, SPEED_10, SPEED_10,
3705 SPEED_100, SPEED_100, SPEED_100,
3706 SPEED_1000, SPEED_1000, SPEED_1000, SPEED_1000,
3707 };
3708 static const phy_interface_t enet_to_phy_interface[] = {
3709 PHY_INTERFACE_MODE_MII, PHY_INTERFACE_MODE_RMII,
3710 PHY_INTERFACE_MODE_RGMII, PHY_INTERFACE_MODE_MII,
3711 PHY_INTERFACE_MODE_RMII, PHY_INTERFACE_MODE_RGMII,
3712 PHY_INTERFACE_MODE_GMII, PHY_INTERFACE_MODE_RGMII,
3713 PHY_INTERFACE_MODE_TBI, PHY_INTERFACE_MODE_RTBI,
3714 PHY_INTERFACE_MODE_SGMII,
3715 };
3716
3717 ugeth_vdbg("%s: IN", __func__);
3718
3719 prop = of_get_property(np, "cell-index", NULL);
3720 if (!prop) {
3721 prop = of_get_property(np, "device-id", NULL);
3722 if (!prop)
3723 return -ENODEV;
3724 }
3725
3726 ucc_num = *prop - 1;
3727 if ((ucc_num < 0) || (ucc_num > 7))
3728 return -ENODEV;
3729
3730 ug_info = &ugeth_info[ucc_num];
3731 if (ug_info == NULL) {
3732 if (netif_msg_probe(&debug))
3733 pr_err("[%d] Missing additional data!\n", ucc_num);
3734 return -ENODEV;
3735 }
3736
3737 ug_info->uf_info.ucc_num = ucc_num;
3738
3739 sprop = of_get_property(np, "rx-clock-name", NULL);
3740 if (sprop) {
3741 ug_info->uf_info.rx_clock = qe_clock_source(sprop);
3742 if ((ug_info->uf_info.rx_clock < QE_CLK_NONE) ||
3743 (ug_info->uf_info.rx_clock > QE_CLK24)) {
3744 pr_err("invalid rx-clock-name property\n");
3745 return -EINVAL;
3746 }
3747 } else {
3748 prop = of_get_property(np, "rx-clock", NULL);
3749 if (!prop) {
3750 /* If both rx-clock-name and rx-clock are missing,
3751 we want to tell people to use rx-clock-name. */
3752 pr_err("missing rx-clock-name property\n");
3753 return -EINVAL;
3754 }
3755 if ((*prop < QE_CLK_NONE) || (*prop > QE_CLK24)) {
3756 pr_err("invalid rx-clock property\n");
3757 return -EINVAL;
3758 }
3759 ug_info->uf_info.rx_clock = *prop;
3760 }
3761
3762 sprop = of_get_property(np, "tx-clock-name", NULL);
3763 if (sprop) {
3764 ug_info->uf_info.tx_clock = qe_clock_source(sprop);
3765 if ((ug_info->uf_info.tx_clock < QE_CLK_NONE) ||
3766 (ug_info->uf_info.tx_clock > QE_CLK24)) {
3767 pr_err("invalid tx-clock-name property\n");
3768 return -EINVAL;
3769 }
3770 } else {
3771 prop = of_get_property(np, "tx-clock", NULL);
3772 if (!prop) {
3773 pr_err("missing tx-clock-name property\n");
3774 return -EINVAL;
3775 }
3776 if ((*prop < QE_CLK_NONE) || (*prop > QE_CLK24)) {
3777 pr_err("invalid tx-clock property\n");
3778 return -EINVAL;
3779 }
3780 ug_info->uf_info.tx_clock = *prop;
3781 }
3782
3783 err = of_address_to_resource(np, 0, &res);
3784 if (err)
3785 return -EINVAL;
3786
3787 ug_info->uf_info.regs = res.start;
3788 ug_info->uf_info.irq = irq_of_parse_and_map(np, 0);
3789
3790 ug_info->phy_node = of_parse_phandle(np, "phy-handle", 0);
3791 if (!ug_info->phy_node && of_phy_is_fixed_link(np)) {
3792 /*
3793 * In the case of a fixed PHY, the DT node associated
3794 * to the PHY is the Ethernet MAC DT node.
3795 */
3796 err = of_phy_register_fixed_link(np);
3797 if (err)
3798 return err;
3799 ug_info->phy_node = of_node_get(np);
3800 }
3801
3802 /* Find the TBI PHY node. If it's not there, we don't support SGMII */
3803 ug_info->tbi_node = of_parse_phandle(np, "tbi-handle", 0);
3804
3805 /* get the phy interface type, or default to MII */
3806 prop = of_get_property(np, "phy-connection-type", NULL);
3807 if (!prop) {
3808 /* handle interface property present in old trees */
3809 prop = of_get_property(ug_info->phy_node, "interface", NULL);
3810 if (prop != NULL) {
3811 phy_interface = enet_to_phy_interface[*prop];
3812 max_speed = enet_to_speed[*prop];
3813 } else
3814 phy_interface = PHY_INTERFACE_MODE_MII;
3815 } else {
3816 phy_interface = to_phy_interface((const char *)prop);
3817 }
3818
3819 /* get speed, or derive from PHY interface */
3820 if (max_speed == 0)
3821 switch (phy_interface) {
3822 case PHY_INTERFACE_MODE_GMII:
3823 case PHY_INTERFACE_MODE_RGMII:
3824 case PHY_INTERFACE_MODE_RGMII_ID:
3825 case PHY_INTERFACE_MODE_RGMII_RXID:
3826 case PHY_INTERFACE_MODE_RGMII_TXID:
3827 case PHY_INTERFACE_MODE_TBI:
3828 case PHY_INTERFACE_MODE_RTBI:
3829 case PHY_INTERFACE_MODE_SGMII:
3830 max_speed = SPEED_1000;
3831 break;
3832 default:
3833 max_speed = SPEED_100;
3834 break;
3835 }
3836
3837 if (max_speed == SPEED_1000) {
3838 unsigned int snums = qe_get_num_of_snums();
3839
3840 /* configure muram FIFOs for gigabit operation */
3841 ug_info->uf_info.urfs = UCC_GETH_URFS_GIGA_INIT;
3842 ug_info->uf_info.urfet = UCC_GETH_URFET_GIGA_INIT;
3843 ug_info->uf_info.urfset = UCC_GETH_URFSET_GIGA_INIT;
3844 ug_info->uf_info.utfs = UCC_GETH_UTFS_GIGA_INIT;
3845 ug_info->uf_info.utfet = UCC_GETH_UTFET_GIGA_INIT;
3846 ug_info->uf_info.utftt = UCC_GETH_UTFTT_GIGA_INIT;
3847 ug_info->numThreadsTx = UCC_GETH_NUM_OF_THREADS_4;
3848
3849 /* If QE's snum number is 46/76 which means we need to support
3850 * 4 UECs at 1000Base-T simultaneously, we need to allocate
3851 * more Threads to Rx.
3852 */
3853 if ((snums == 76) || (snums == 46))
3854 ug_info->numThreadsRx = UCC_GETH_NUM_OF_THREADS_6;
3855 else
3856 ug_info->numThreadsRx = UCC_GETH_NUM_OF_THREADS_4;
3857 }
3858
3859 if (netif_msg_probe(&debug))
3860 pr_info("UCC%1d at 0x%8llx (irq = %d)\n",
3861 ug_info->uf_info.ucc_num + 1,
3862 (u64)ug_info->uf_info.regs,
3863 ug_info->uf_info.irq);
3864
3865 /* Create an ethernet device instance */
3866 dev = alloc_etherdev(sizeof(*ugeth));
3867
3868 if (dev == NULL) {
3869 err = -ENOMEM;
3870 goto err_deregister_fixed_link;
3871 }
3872
3873 ugeth = netdev_priv(dev);
3874 spin_lock_init(&ugeth->lock);
3875
3876 /* Create CQs for hash tables */
3877 INIT_LIST_HEAD(&ugeth->group_hash_q);
3878 INIT_LIST_HEAD(&ugeth->ind_hash_q);
3879
3880 dev_set_drvdata(device, dev);
3881
3882 /* Set the dev->base_addr to the gfar reg region */
3883 dev->base_addr = (unsigned long)(ug_info->uf_info.regs);
3884
3885 SET_NETDEV_DEV(dev, device);
3886
3887 /* Fill in the dev structure */
3888 uec_set_ethtool_ops(dev);
3889 dev->netdev_ops = &ucc_geth_netdev_ops;
3890 dev->watchdog_timeo = TX_TIMEOUT;
3891 INIT_WORK(&ugeth->timeout_work, ucc_geth_timeout_work);
3892 netif_napi_add(dev, &ugeth->napi, ucc_geth_poll, 64);
3893 dev->mtu = 1500;
3894
3895 ugeth->msg_enable = netif_msg_init(debug.msg_enable, UGETH_MSG_DEFAULT);
3896 ugeth->phy_interface = phy_interface;
3897 ugeth->max_speed = max_speed;
3898
3899 /* Carrier starts down, phylib will bring it up */
3900 netif_carrier_off(dev);
3901
3902 err = register_netdev(dev);
3903 if (err) {
3904 if (netif_msg_probe(ugeth))
3905 pr_err("%s: Cannot register net device, aborting\n",
3906 dev->name);
3907 goto err_free_netdev;
3908 }
3909
3910 mac_addr = of_get_mac_address(np);
3911 if (mac_addr)
3912 memcpy(dev->dev_addr, mac_addr, ETH_ALEN);
3913
3914 ugeth->ug_info = ug_info;
3915 ugeth->dev = device;
3916 ugeth->ndev = dev;
3917 ugeth->node = np;
3918
3919 return 0;
3920
3921err_free_netdev:
3922 free_netdev(dev);
3923err_deregister_fixed_link:
3924 if (of_phy_is_fixed_link(np))
3925 of_phy_deregister_fixed_link(np);
3926 of_node_put(ug_info->tbi_node);
3927 of_node_put(ug_info->phy_node);
3928
3929 return err;
3930}
3931
3932static int ucc_geth_remove(struct platform_device* ofdev)
3933{
3934 struct net_device *dev = platform_get_drvdata(ofdev);
3935 struct ucc_geth_private *ugeth = netdev_priv(dev);
3936 struct device_node *np = ofdev->dev.of_node;
3937
3938 unregister_netdev(dev);
3939 free_netdev(dev);
3940 ucc_geth_memclean(ugeth);
3941 if (of_phy_is_fixed_link(np))
3942 of_phy_deregister_fixed_link(np);
3943 of_node_put(ugeth->ug_info->tbi_node);
3944 of_node_put(ugeth->ug_info->phy_node);
3945
3946 return 0;
3947}
3948
3949static const struct of_device_id ucc_geth_match[] = {
3950 {
3951 .type = "network",
3952 .compatible = "ucc_geth",
3953 },
3954 {},
3955};
3956
3957MODULE_DEVICE_TABLE(of, ucc_geth_match);
3958
3959static struct platform_driver ucc_geth_driver = {
3960 .driver = {
3961 .name = DRV_NAME,
3962 .of_match_table = ucc_geth_match,
3963 },
3964 .probe = ucc_geth_probe,
3965 .remove = ucc_geth_remove,
3966 .suspend = ucc_geth_suspend,
3967 .resume = ucc_geth_resume,
3968};
3969
3970static int __init ucc_geth_init(void)
3971{
3972 int i, ret;
3973
3974 if (netif_msg_drv(&debug))
3975 pr_info(DRV_DESC "\n");
3976 for (i = 0; i < 8; i++)
3977 memcpy(&(ugeth_info[i]), &ugeth_primary_info,
3978 sizeof(ugeth_primary_info));
3979
3980 ret = platform_driver_register(&ucc_geth_driver);
3981
3982 return ret;
3983}
3984
3985static void __exit ucc_geth_exit(void)
3986{
3987 platform_driver_unregister(&ucc_geth_driver);
3988}
3989
3990module_init(ucc_geth_init);
3991module_exit(ucc_geth_exit);
3992
3993MODULE_AUTHOR("Freescale Semiconductor, Inc");
3994MODULE_DESCRIPTION(DRV_DESC);
3995MODULE_VERSION(DRV_VERSION);
3996MODULE_LICENSE("GPL");