tree-wide: fix assorted typos all over the place
[linux-2.6.git] / drivers / net / ucc_geth.c
1 /*
2  * Copyright (C) 2006-2009 Freescale Semicondutor, Inc. All rights reserved.
3  *
4  * Author: Shlomi Gridish <gridish@freescale.com>
5  *         Li Yang <leoli@freescale.com>
6  *
7  * Description:
8  * QE UCC Gigabit Ethernet Driver
9  *
10  * This program is free software; you can redistribute  it and/or modify it
11  * under  the terms of  the GNU General  Public License as published by the
12  * Free Software Foundation;  either version 2 of the  License, or (at your
13  * option) any later version.
14  */
15 #include <linux/kernel.h>
16 #include <linux/init.h>
17 #include <linux/errno.h>
18 #include <linux/slab.h>
19 #include <linux/stddef.h>
20 #include <linux/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/workqueue.h>
30 #include <linux/of_mdio.h>
31 #include <linux/of_platform.h>
32
33 #include <asm/uaccess.h>
34 #include <asm/irq.h>
35 #include <asm/io.h>
36 #include <asm/immap_qe.h>
37 #include <asm/qe.h>
38 #include <asm/ucc.h>
39 #include <asm/ucc_fast.h>
40
41 #include "ucc_geth.h"
42 #include "fsl_pq_mdio.h"
43
44 #undef DEBUG
45
46 #define ugeth_printk(level, format, arg...)  \
47         printk(level format "\n", ## arg)
48
49 #define ugeth_dbg(format, arg...)            \
50         ugeth_printk(KERN_DEBUG , format , ## arg)
51 #define ugeth_err(format, arg...)            \
52         ugeth_printk(KERN_ERR , format , ## arg)
53 #define ugeth_info(format, arg...)           \
54         ugeth_printk(KERN_INFO , format , ## arg)
55 #define ugeth_warn(format, arg...)           \
56         ugeth_printk(KERN_WARNING , format , ## arg)
57
58 #ifdef UGETH_VERBOSE_DEBUG
59 #define ugeth_vdbg ugeth_dbg
60 #else
61 #define ugeth_vdbg(fmt, args...) do { } while (0)
62 #endif                          /* UGETH_VERBOSE_DEBUG */
63 #define UGETH_MSG_DEFAULT       (NETIF_MSG_IFUP << 1 ) - 1
64
65
66 static DEFINE_SPINLOCK(ugeth_lock);
67
68 static struct {
69         u32 msg_enable;
70 } debug = { -1 };
71
72 module_param_named(debug, debug.msg_enable, int, 0);
73 MODULE_PARM_DESC(debug, "Debug verbosity level (0=none, ..., 0xffff=all)");
74
75 static struct ucc_geth_info ugeth_primary_info = {
76         .uf_info = {
77                     .bd_mem_part = MEM_PART_SYSTEM,
78                     .rtsm = UCC_FAST_SEND_IDLES_BETWEEN_FRAMES,
79                     .max_rx_buf_length = 1536,
80                     /* adjusted at startup if max-speed 1000 */
81                     .urfs = UCC_GETH_URFS_INIT,
82                     .urfet = UCC_GETH_URFET_INIT,
83                     .urfset = UCC_GETH_URFSET_INIT,
84                     .utfs = UCC_GETH_UTFS_INIT,
85                     .utfet = UCC_GETH_UTFET_INIT,
86                     .utftt = UCC_GETH_UTFTT_INIT,
87                     .ufpt = 256,
88                     .mode = UCC_FAST_PROTOCOL_MODE_ETHERNET,
89                     .ttx_trx = UCC_FAST_GUMR_TRANSPARENT_TTX_TRX_NORMAL,
90                     .tenc = UCC_FAST_TX_ENCODING_NRZ,
91                     .renc = UCC_FAST_RX_ENCODING_NRZ,
92                     .tcrc = UCC_FAST_16_BIT_CRC,
93                     .synl = UCC_FAST_SYNC_LEN_NOT_USED,
94                     },
95         .numQueuesTx = 1,
96         .numQueuesRx = 1,
97         .extendedFilteringChainPointer = ((uint32_t) NULL),
98         .typeorlen = 3072 /*1536 */ ,
99         .nonBackToBackIfgPart1 = 0x40,
100         .nonBackToBackIfgPart2 = 0x60,
101         .miminumInterFrameGapEnforcement = 0x50,
102         .backToBackInterFrameGap = 0x60,
103         .mblinterval = 128,
104         .nortsrbytetime = 5,
105         .fracsiz = 1,
106         .strictpriorityq = 0xff,
107         .altBebTruncation = 0xa,
108         .excessDefer = 1,
109         .maxRetransmission = 0xf,
110         .collisionWindow = 0x37,
111         .receiveFlowControl = 1,
112         .transmitFlowControl = 1,
113         .maxGroupAddrInHash = 4,
114         .maxIndAddrInHash = 4,
115         .prel = 7,
116         .maxFrameLength = 1518,
117         .minFrameLength = 64,
118         .maxD1Length = 1520,
119         .maxD2Length = 1520,
120         .vlantype = 0x8100,
121         .ecamptr = ((uint32_t) NULL),
122         .eventRegMask = UCCE_OTHER,
123         .pausePeriod = 0xf000,
124         .interruptcoalescingmaxvalue = {1, 1, 1, 1, 1, 1, 1, 1},
125         .bdRingLenTx = {
126                         TX_BD_RING_LEN,
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
135         .bdRingLenRx = {
136                         RX_BD_RING_LEN,
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
145         .numStationAddresses = UCC_GETH_NUM_OF_STATION_ADDRESSES_1,
146         .largestexternallookupkeysize =
147             QE_FLTR_LARGEST_EXTERNAL_TABLE_LOOKUP_KEY_SIZE_NONE,
148         .statisticsMode = UCC_GETH_STATISTICS_GATHERING_MODE_HARDWARE |
149                 UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_TX |
150                 UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_RX,
151         .vlanOperationTagged = UCC_GETH_VLAN_OPERATION_TAGGED_NOP,
152         .vlanOperationNonTagged = UCC_GETH_VLAN_OPERATION_NON_TAGGED_NOP,
153         .rxQoSMode = UCC_GETH_QOS_MODE_DEFAULT,
154         .aufc = UPSMR_AUTOMATIC_FLOW_CONTROL_MODE_NONE,
155         .padAndCrc = MACCFG2_PAD_AND_CRC_MODE_PAD_AND_CRC,
156         .numThreadsTx = UCC_GETH_NUM_OF_THREADS_1,
157         .numThreadsRx = UCC_GETH_NUM_OF_THREADS_1,
158         .riscTx = QE_RISC_ALLOCATION_RISC1_AND_RISC2,
159         .riscRx = QE_RISC_ALLOCATION_RISC1_AND_RISC2,
160 };
161
162 static struct ucc_geth_info ugeth_info[8];
163
164 #ifdef DEBUG
165 static void mem_disp(u8 *addr, int size)
166 {
167         u8 *i;
168         int size16Aling = (size >> 4) << 4;
169         int size4Aling = (size >> 2) << 2;
170         int notAlign = 0;
171         if (size % 16)
172                 notAlign = 1;
173
174         for (i = addr; (u32) i < (u32) addr + size16Aling; i += 16)
175                 printk("0x%08x: %08x %08x %08x %08x\r\n",
176                        (u32) i,
177                        *((u32 *) (i)),
178                        *((u32 *) (i + 4)),
179                        *((u32 *) (i + 8)), *((u32 *) (i + 12)));
180         if (notAlign == 1)
181                 printk("0x%08x: ", (u32) i);
182         for (; (u32) i < (u32) addr + size4Aling; i += 4)
183                 printk("%08x ", *((u32 *) (i)));
184         for (; (u32) i < (u32) addr + size; i++)
185                 printk("%02x", *((u8 *) (i)));
186         if (notAlign == 1)
187                 printk("\r\n");
188 }
189 #endif /* DEBUG */
190
191 static struct list_head *dequeue(struct list_head *lh)
192 {
193         unsigned long flags;
194
195         spin_lock_irqsave(&ugeth_lock, flags);
196         if (!list_empty(lh)) {
197                 struct list_head *node = lh->next;
198                 list_del(node);
199                 spin_unlock_irqrestore(&ugeth_lock, flags);
200                 return node;
201         } else {
202                 spin_unlock_irqrestore(&ugeth_lock, flags);
203                 return NULL;
204         }
205 }
206
207 static struct sk_buff *get_new_skb(struct ucc_geth_private *ugeth,
208                 u8 __iomem *bd)
209 {
210         struct sk_buff *skb = NULL;
211
212         skb = __skb_dequeue(&ugeth->rx_recycle);
213         if (!skb)
214                 skb = dev_alloc_skb(ugeth->ug_info->uf_info.max_rx_buf_length +
215                                     UCC_GETH_RX_DATA_BUF_ALIGNMENT);
216         if (skb == NULL)
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         skb->dev = ugeth->ndev;
228
229         out_be32(&((struct qe_bd __iomem *)bd)->buf,
230                       dma_map_single(ugeth->dev,
231                                      skb->data,
232                                      ugeth->ug_info->uf_info.max_rx_buf_length +
233                                      UCC_GETH_RX_DATA_BUF_ALIGNMENT,
234                                      DMA_FROM_DEVICE));
235
236         out_be32((u32 __iomem *)bd,
237                         (R_E | R_I | (in_be32((u32 __iomem*)bd) & R_W)));
238
239         return skb;
240 }
241
242 static int rx_bd_buffer_set(struct ucc_geth_private *ugeth, u8 rxQ)
243 {
244         u8 __iomem *bd;
245         u32 bd_status;
246         struct sk_buff *skb;
247         int i;
248
249         bd = ugeth->p_rx_bd_ring[rxQ];
250         i = 0;
251
252         do {
253                 bd_status = in_be32((u32 __iomem *)bd);
254                 skb = get_new_skb(ugeth, bd);
255
256                 if (!skb)       /* If can not allocate data buffer,
257                                 abort. Cleanup will be elsewhere */
258                         return -ENOMEM;
259
260                 ugeth->rx_skbuff[rxQ][i] = skb;
261
262                 /* advance the BD pointer */
263                 bd += sizeof(struct qe_bd);
264                 i++;
265         } while (!(bd_status & R_W));
266
267         return 0;
268 }
269
270 static int fill_init_enet_entries(struct ucc_geth_private *ugeth,
271                                   u32 *p_start,
272                                   u8 num_entries,
273                                   u32 thread_size,
274                                   u32 thread_alignment,
275                                   unsigned int risc,
276                                   int skip_page_for_first_entry)
277 {
278         u32 init_enet_offset;
279         u8 i;
280         int snum;
281
282         for (i = 0; i < num_entries; i++) {
283                 if ((snum = qe_get_snum()) < 0) {
284                         if (netif_msg_ifup(ugeth))
285                                 ugeth_err("fill_init_enet_entries: Can not get SNUM.");
286                         return snum;
287                 }
288                 if ((i == 0) && skip_page_for_first_entry)
289                 /* First entry of Rx does not have page */
290                         init_enet_offset = 0;
291                 else {
292                         init_enet_offset =
293                             qe_muram_alloc(thread_size, thread_alignment);
294                         if (IS_ERR_VALUE(init_enet_offset)) {
295                                 if (netif_msg_ifup(ugeth))
296                                         ugeth_err("fill_init_enet_entries: Can not allocate DPRAM memory.");
297                                 qe_put_snum((u8) snum);
298                                 return -ENOMEM;
299                         }
300                 }
301                 *(p_start++) =
302                     ((u8) snum << ENET_INIT_PARAM_SNUM_SHIFT) | init_enet_offset
303                     | risc;
304         }
305
306         return 0;
307 }
308
309 static int return_init_enet_entries(struct ucc_geth_private *ugeth,
310                                     u32 *p_start,
311                                     u8 num_entries,
312                                     unsigned int risc,
313                                     int skip_page_for_first_entry)
314 {
315         u32 init_enet_offset;
316         u8 i;
317         int snum;
318
319         for (i = 0; i < num_entries; i++) {
320                 u32 val = *p_start;
321
322                 /* Check that this entry was actually valid --
323                 needed in case failed in allocations */
324                 if ((val & ENET_INIT_PARAM_RISC_MASK) == risc) {
325                         snum =
326                             (u32) (val & ENET_INIT_PARAM_SNUM_MASK) >>
327                             ENET_INIT_PARAM_SNUM_SHIFT;
328                         qe_put_snum((u8) snum);
329                         if (!((i == 0) && skip_page_for_first_entry)) {
330                         /* First entry of Rx does not have page */
331                                 init_enet_offset =
332                                     (val & ENET_INIT_PARAM_PTR_MASK);
333                                 qe_muram_free(init_enet_offset);
334                         }
335                         *p_start++ = 0;
336                 }
337         }
338
339         return 0;
340 }
341
342 #ifdef DEBUG
343 static int dump_init_enet_entries(struct ucc_geth_private *ugeth,
344                                   u32 __iomem *p_start,
345                                   u8 num_entries,
346                                   u32 thread_size,
347                                   unsigned int risc,
348                                   int skip_page_for_first_entry)
349 {
350         u32 init_enet_offset;
351         u8 i;
352         int snum;
353
354         for (i = 0; i < num_entries; i++) {
355                 u32 val = in_be32(p_start);
356
357                 /* Check that this entry was actually valid --
358                 needed in case failed in allocations */
359                 if ((val & ENET_INIT_PARAM_RISC_MASK) == risc) {
360                         snum =
361                             (u32) (val & ENET_INIT_PARAM_SNUM_MASK) >>
362                             ENET_INIT_PARAM_SNUM_SHIFT;
363                         qe_put_snum((u8) snum);
364                         if (!((i == 0) && skip_page_for_first_entry)) {
365                         /* First entry of Rx does not have page */
366                                 init_enet_offset =
367                                     (in_be32(p_start) &
368                                      ENET_INIT_PARAM_PTR_MASK);
369                                 ugeth_info("Init enet entry %d:", i);
370                                 ugeth_info("Base address: 0x%08x",
371                                            (u32)
372                                            qe_muram_addr(init_enet_offset));
373                                 mem_disp(qe_muram_addr(init_enet_offset),
374                                          thread_size);
375                         }
376                         p_start++;
377                 }
378         }
379
380         return 0;
381 }
382 #endif
383
384 static void put_enet_addr_container(struct enet_addr_container *enet_addr_cont)
385 {
386         kfree(enet_addr_cont);
387 }
388
389 static void set_mac_addr(__be16 __iomem *reg, u8 *mac)
390 {
391         out_be16(&reg[0], ((u16)mac[5] << 8) | mac[4]);
392         out_be16(&reg[1], ((u16)mac[3] << 8) | mac[2]);
393         out_be16(&reg[2], ((u16)mac[1] << 8) | mac[0]);
394 }
395
396 static int hw_clear_addr_in_paddr(struct ucc_geth_private *ugeth, u8 paddr_num)
397 {
398         struct ucc_geth_82xx_address_filtering_pram __iomem *p_82xx_addr_filt;
399
400         if (!(paddr_num < NUM_OF_PADDRS)) {
401                 ugeth_warn("%s: Illagel paddr_num.", __func__);
402                 return -EINVAL;
403         }
404
405         p_82xx_addr_filt =
406             (struct ucc_geth_82xx_address_filtering_pram __iomem *) ugeth->p_rx_glbl_pram->
407             addressfiltering;
408
409         /* Writing address ff.ff.ff.ff.ff.ff disables address
410         recognition for this register */
411         out_be16(&p_82xx_addr_filt->paddr[paddr_num].h, 0xffff);
412         out_be16(&p_82xx_addr_filt->paddr[paddr_num].m, 0xffff);
413         out_be16(&p_82xx_addr_filt->paddr[paddr_num].l, 0xffff);
414
415         return 0;
416 }
417
418 static void hw_add_addr_in_hash(struct ucc_geth_private *ugeth,
419                                 u8 *p_enet_addr)
420 {
421         struct ucc_geth_82xx_address_filtering_pram __iomem *p_82xx_addr_filt;
422         u32 cecr_subblock;
423
424         p_82xx_addr_filt =
425             (struct ucc_geth_82xx_address_filtering_pram __iomem *) ugeth->p_rx_glbl_pram->
426             addressfiltering;
427
428         cecr_subblock =
429             ucc_fast_get_qe_cr_subblock(ugeth->ug_info->uf_info.ucc_num);
430
431         /* Ethernet frames are defined in Little Endian mode,
432         therefor to insert */
433         /* the address to the hash (Big Endian mode), we reverse the bytes.*/
434
435         set_mac_addr(&p_82xx_addr_filt->taddr.h, p_enet_addr);
436
437         qe_issue_cmd(QE_SET_GROUP_ADDRESS, cecr_subblock,
438                      QE_CR_PROTOCOL_ETHERNET, 0);
439 }
440
441 static inline int compare_addr(u8 **addr1, u8 **addr2)
442 {
443         return memcmp(addr1, addr2, ENET_NUM_OCTETS_PER_ADDRESS);
444 }
445
446 #ifdef DEBUG
447 static void get_statistics(struct ucc_geth_private *ugeth,
448                            struct ucc_geth_tx_firmware_statistics *
449                            tx_firmware_statistics,
450                            struct ucc_geth_rx_firmware_statistics *
451                            rx_firmware_statistics,
452                            struct ucc_geth_hardware_statistics *hardware_statistics)
453 {
454         struct ucc_fast __iomem *uf_regs;
455         struct ucc_geth __iomem *ug_regs;
456         struct ucc_geth_tx_firmware_statistics_pram *p_tx_fw_statistics_pram;
457         struct ucc_geth_rx_firmware_statistics_pram *p_rx_fw_statistics_pram;
458
459         ug_regs = ugeth->ug_regs;
460         uf_regs = (struct ucc_fast __iomem *) ug_regs;
461         p_tx_fw_statistics_pram = ugeth->p_tx_fw_statistics_pram;
462         p_rx_fw_statistics_pram = ugeth->p_rx_fw_statistics_pram;
463
464         /* Tx firmware only if user handed pointer and driver actually
465         gathers Tx firmware statistics */
466         if (tx_firmware_statistics && p_tx_fw_statistics_pram) {
467                 tx_firmware_statistics->sicoltx =
468                     in_be32(&p_tx_fw_statistics_pram->sicoltx);
469                 tx_firmware_statistics->mulcoltx =
470                     in_be32(&p_tx_fw_statistics_pram->mulcoltx);
471                 tx_firmware_statistics->latecoltxfr =
472                     in_be32(&p_tx_fw_statistics_pram->latecoltxfr);
473                 tx_firmware_statistics->frabortduecol =
474                     in_be32(&p_tx_fw_statistics_pram->frabortduecol);
475                 tx_firmware_statistics->frlostinmactxer =
476                     in_be32(&p_tx_fw_statistics_pram->frlostinmactxer);
477                 tx_firmware_statistics->carriersenseertx =
478                     in_be32(&p_tx_fw_statistics_pram->carriersenseertx);
479                 tx_firmware_statistics->frtxok =
480                     in_be32(&p_tx_fw_statistics_pram->frtxok);
481                 tx_firmware_statistics->txfrexcessivedefer =
482                     in_be32(&p_tx_fw_statistics_pram->txfrexcessivedefer);
483                 tx_firmware_statistics->txpkts256 =
484                     in_be32(&p_tx_fw_statistics_pram->txpkts256);
485                 tx_firmware_statistics->txpkts512 =
486                     in_be32(&p_tx_fw_statistics_pram->txpkts512);
487                 tx_firmware_statistics->txpkts1024 =
488                     in_be32(&p_tx_fw_statistics_pram->txpkts1024);
489                 tx_firmware_statistics->txpktsjumbo =
490                     in_be32(&p_tx_fw_statistics_pram->txpktsjumbo);
491         }
492
493         /* Rx firmware only if user handed pointer and driver actually
494          * gathers Rx firmware statistics */
495         if (rx_firmware_statistics && p_rx_fw_statistics_pram) {
496                 int i;
497                 rx_firmware_statistics->frrxfcser =
498                     in_be32(&p_rx_fw_statistics_pram->frrxfcser);
499                 rx_firmware_statistics->fraligner =
500                     in_be32(&p_rx_fw_statistics_pram->fraligner);
501                 rx_firmware_statistics->inrangelenrxer =
502                     in_be32(&p_rx_fw_statistics_pram->inrangelenrxer);
503                 rx_firmware_statistics->outrangelenrxer =
504                     in_be32(&p_rx_fw_statistics_pram->outrangelenrxer);
505                 rx_firmware_statistics->frtoolong =
506                     in_be32(&p_rx_fw_statistics_pram->frtoolong);
507                 rx_firmware_statistics->runt =
508                     in_be32(&p_rx_fw_statistics_pram->runt);
509                 rx_firmware_statistics->verylongevent =
510                     in_be32(&p_rx_fw_statistics_pram->verylongevent);
511                 rx_firmware_statistics->symbolerror =
512                     in_be32(&p_rx_fw_statistics_pram->symbolerror);
513                 rx_firmware_statistics->dropbsy =
514                     in_be32(&p_rx_fw_statistics_pram->dropbsy);
515                 for (i = 0; i < 0x8; i++)
516                         rx_firmware_statistics->res0[i] =
517                             p_rx_fw_statistics_pram->res0[i];
518                 rx_firmware_statistics->mismatchdrop =
519                     in_be32(&p_rx_fw_statistics_pram->mismatchdrop);
520                 rx_firmware_statistics->underpkts =
521                     in_be32(&p_rx_fw_statistics_pram->underpkts);
522                 rx_firmware_statistics->pkts256 =
523                     in_be32(&p_rx_fw_statistics_pram->pkts256);
524                 rx_firmware_statistics->pkts512 =
525                     in_be32(&p_rx_fw_statistics_pram->pkts512);
526                 rx_firmware_statistics->pkts1024 =
527                     in_be32(&p_rx_fw_statistics_pram->pkts1024);
528                 rx_firmware_statistics->pktsjumbo =
529                     in_be32(&p_rx_fw_statistics_pram->pktsjumbo);
530                 rx_firmware_statistics->frlossinmacer =
531                     in_be32(&p_rx_fw_statistics_pram->frlossinmacer);
532                 rx_firmware_statistics->pausefr =
533                     in_be32(&p_rx_fw_statistics_pram->pausefr);
534                 for (i = 0; i < 0x4; i++)
535                         rx_firmware_statistics->res1[i] =
536                             p_rx_fw_statistics_pram->res1[i];
537                 rx_firmware_statistics->removevlan =
538                     in_be32(&p_rx_fw_statistics_pram->removevlan);
539                 rx_firmware_statistics->replacevlan =
540                     in_be32(&p_rx_fw_statistics_pram->replacevlan);
541                 rx_firmware_statistics->insertvlan =
542                     in_be32(&p_rx_fw_statistics_pram->insertvlan);
543         }
544
545         /* Hardware only if user handed pointer and driver actually
546         gathers hardware statistics */
547         if (hardware_statistics &&
548             (in_be32(&uf_regs->upsmr) & UCC_GETH_UPSMR_HSE)) {
549                 hardware_statistics->tx64 = in_be32(&ug_regs->tx64);
550                 hardware_statistics->tx127 = in_be32(&ug_regs->tx127);
551                 hardware_statistics->tx255 = in_be32(&ug_regs->tx255);
552                 hardware_statistics->rx64 = in_be32(&ug_regs->rx64);
553                 hardware_statistics->rx127 = in_be32(&ug_regs->rx127);
554                 hardware_statistics->rx255 = in_be32(&ug_regs->rx255);
555                 hardware_statistics->txok = in_be32(&ug_regs->txok);
556                 hardware_statistics->txcf = in_be16(&ug_regs->txcf);
557                 hardware_statistics->tmca = in_be32(&ug_regs->tmca);
558                 hardware_statistics->tbca = in_be32(&ug_regs->tbca);
559                 hardware_statistics->rxfok = in_be32(&ug_regs->rxfok);
560                 hardware_statistics->rxbok = in_be32(&ug_regs->rxbok);
561                 hardware_statistics->rbyt = in_be32(&ug_regs->rbyt);
562                 hardware_statistics->rmca = in_be32(&ug_regs->rmca);
563                 hardware_statistics->rbca = in_be32(&ug_regs->rbca);
564         }
565 }
566
567 static void dump_bds(struct ucc_geth_private *ugeth)
568 {
569         int i;
570         int length;
571
572         for (i = 0; i < ugeth->ug_info->numQueuesTx; i++) {
573                 if (ugeth->p_tx_bd_ring[i]) {
574                         length =
575                             (ugeth->ug_info->bdRingLenTx[i] *
576                              sizeof(struct qe_bd));
577                         ugeth_info("TX BDs[%d]", i);
578                         mem_disp(ugeth->p_tx_bd_ring[i], length);
579                 }
580         }
581         for (i = 0; i < ugeth->ug_info->numQueuesRx; i++) {
582                 if (ugeth->p_rx_bd_ring[i]) {
583                         length =
584                             (ugeth->ug_info->bdRingLenRx[i] *
585                              sizeof(struct qe_bd));
586                         ugeth_info("RX BDs[%d]", i);
587                         mem_disp(ugeth->p_rx_bd_ring[i], length);
588                 }
589         }
590 }
591
592 static void dump_regs(struct ucc_geth_private *ugeth)
593 {
594         int i;
595
596         ugeth_info("UCC%d Geth registers:", ugeth->ug_info->uf_info.ucc_num);
597         ugeth_info("Base address: 0x%08x", (u32) ugeth->ug_regs);
598
599         ugeth_info("maccfg1    : addr - 0x%08x, val - 0x%08x",
600                    (u32) & ugeth->ug_regs->maccfg1,
601                    in_be32(&ugeth->ug_regs->maccfg1));
602         ugeth_info("maccfg2    : addr - 0x%08x, val - 0x%08x",
603                    (u32) & ugeth->ug_regs->maccfg2,
604                    in_be32(&ugeth->ug_regs->maccfg2));
605         ugeth_info("ipgifg     : addr - 0x%08x, val - 0x%08x",
606                    (u32) & ugeth->ug_regs->ipgifg,
607                    in_be32(&ugeth->ug_regs->ipgifg));
608         ugeth_info("hafdup     : addr - 0x%08x, val - 0x%08x",
609                    (u32) & ugeth->ug_regs->hafdup,
610                    in_be32(&ugeth->ug_regs->hafdup));
611         ugeth_info("ifctl      : addr - 0x%08x, val - 0x%08x",
612                    (u32) & ugeth->ug_regs->ifctl,
613                    in_be32(&ugeth->ug_regs->ifctl));
614         ugeth_info("ifstat     : addr - 0x%08x, val - 0x%08x",
615                    (u32) & ugeth->ug_regs->ifstat,
616                    in_be32(&ugeth->ug_regs->ifstat));
617         ugeth_info("macstnaddr1: addr - 0x%08x, val - 0x%08x",
618                    (u32) & ugeth->ug_regs->macstnaddr1,
619                    in_be32(&ugeth->ug_regs->macstnaddr1));
620         ugeth_info("macstnaddr2: addr - 0x%08x, val - 0x%08x",
621                    (u32) & ugeth->ug_regs->macstnaddr2,
622                    in_be32(&ugeth->ug_regs->macstnaddr2));
623         ugeth_info("uempr      : addr - 0x%08x, val - 0x%08x",
624                    (u32) & ugeth->ug_regs->uempr,
625                    in_be32(&ugeth->ug_regs->uempr));
626         ugeth_info("utbipar    : addr - 0x%08x, val - 0x%08x",
627                    (u32) & ugeth->ug_regs->utbipar,
628                    in_be32(&ugeth->ug_regs->utbipar));
629         ugeth_info("uescr      : addr - 0x%08x, val - 0x%04x",
630                    (u32) & ugeth->ug_regs->uescr,
631                    in_be16(&ugeth->ug_regs->uescr));
632         ugeth_info("tx64       : addr - 0x%08x, val - 0x%08x",
633                    (u32) & ugeth->ug_regs->tx64,
634                    in_be32(&ugeth->ug_regs->tx64));
635         ugeth_info("tx127      : addr - 0x%08x, val - 0x%08x",
636                    (u32) & ugeth->ug_regs->tx127,
637                    in_be32(&ugeth->ug_regs->tx127));
638         ugeth_info("tx255      : addr - 0x%08x, val - 0x%08x",
639                    (u32) & ugeth->ug_regs->tx255,
640                    in_be32(&ugeth->ug_regs->tx255));
641         ugeth_info("rx64       : addr - 0x%08x, val - 0x%08x",
642                    (u32) & ugeth->ug_regs->rx64,
643                    in_be32(&ugeth->ug_regs->rx64));
644         ugeth_info("rx127      : addr - 0x%08x, val - 0x%08x",
645                    (u32) & ugeth->ug_regs->rx127,
646                    in_be32(&ugeth->ug_regs->rx127));
647         ugeth_info("rx255      : addr - 0x%08x, val - 0x%08x",
648                    (u32) & ugeth->ug_regs->rx255,
649                    in_be32(&ugeth->ug_regs->rx255));
650         ugeth_info("txok       : addr - 0x%08x, val - 0x%08x",
651                    (u32) & ugeth->ug_regs->txok,
652                    in_be32(&ugeth->ug_regs->txok));
653         ugeth_info("txcf       : addr - 0x%08x, val - 0x%04x",
654                    (u32) & ugeth->ug_regs->txcf,
655                    in_be16(&ugeth->ug_regs->txcf));
656         ugeth_info("tmca       : addr - 0x%08x, val - 0x%08x",
657                    (u32) & ugeth->ug_regs->tmca,
658                    in_be32(&ugeth->ug_regs->tmca));
659         ugeth_info("tbca       : addr - 0x%08x, val - 0x%08x",
660                    (u32) & ugeth->ug_regs->tbca,
661                    in_be32(&ugeth->ug_regs->tbca));
662         ugeth_info("rxfok      : addr - 0x%08x, val - 0x%08x",
663                    (u32) & ugeth->ug_regs->rxfok,
664                    in_be32(&ugeth->ug_regs->rxfok));
665         ugeth_info("rxbok      : addr - 0x%08x, val - 0x%08x",
666                    (u32) & ugeth->ug_regs->rxbok,
667                    in_be32(&ugeth->ug_regs->rxbok));
668         ugeth_info("rbyt       : addr - 0x%08x, val - 0x%08x",
669                    (u32) & ugeth->ug_regs->rbyt,
670                    in_be32(&ugeth->ug_regs->rbyt));
671         ugeth_info("rmca       : addr - 0x%08x, val - 0x%08x",
672                    (u32) & ugeth->ug_regs->rmca,
673                    in_be32(&ugeth->ug_regs->rmca));
674         ugeth_info("rbca       : addr - 0x%08x, val - 0x%08x",
675                    (u32) & ugeth->ug_regs->rbca,
676                    in_be32(&ugeth->ug_regs->rbca));
677         ugeth_info("scar       : addr - 0x%08x, val - 0x%08x",
678                    (u32) & ugeth->ug_regs->scar,
679                    in_be32(&ugeth->ug_regs->scar));
680         ugeth_info("scam       : addr - 0x%08x, val - 0x%08x",
681                    (u32) & ugeth->ug_regs->scam,
682                    in_be32(&ugeth->ug_regs->scam));
683
684         if (ugeth->p_thread_data_tx) {
685                 int numThreadsTxNumerical;
686                 switch (ugeth->ug_info->numThreadsTx) {
687                 case UCC_GETH_NUM_OF_THREADS_1:
688                         numThreadsTxNumerical = 1;
689                         break;
690                 case UCC_GETH_NUM_OF_THREADS_2:
691                         numThreadsTxNumerical = 2;
692                         break;
693                 case UCC_GETH_NUM_OF_THREADS_4:
694                         numThreadsTxNumerical = 4;
695                         break;
696                 case UCC_GETH_NUM_OF_THREADS_6:
697                         numThreadsTxNumerical = 6;
698                         break;
699                 case UCC_GETH_NUM_OF_THREADS_8:
700                         numThreadsTxNumerical = 8;
701                         break;
702                 default:
703                         numThreadsTxNumerical = 0;
704                         break;
705                 }
706
707                 ugeth_info("Thread data TXs:");
708                 ugeth_info("Base address: 0x%08x",
709                            (u32) ugeth->p_thread_data_tx);
710                 for (i = 0; i < numThreadsTxNumerical; i++) {
711                         ugeth_info("Thread data TX[%d]:", i);
712                         ugeth_info("Base address: 0x%08x",
713                                    (u32) & ugeth->p_thread_data_tx[i]);
714                         mem_disp((u8 *) & ugeth->p_thread_data_tx[i],
715                                  sizeof(struct ucc_geth_thread_data_tx));
716                 }
717         }
718         if (ugeth->p_thread_data_rx) {
719                 int numThreadsRxNumerical;
720                 switch (ugeth->ug_info->numThreadsRx) {
721                 case UCC_GETH_NUM_OF_THREADS_1:
722                         numThreadsRxNumerical = 1;
723                         break;
724                 case UCC_GETH_NUM_OF_THREADS_2:
725                         numThreadsRxNumerical = 2;
726                         break;
727                 case UCC_GETH_NUM_OF_THREADS_4:
728                         numThreadsRxNumerical = 4;
729                         break;
730                 case UCC_GETH_NUM_OF_THREADS_6:
731                         numThreadsRxNumerical = 6;
732                         break;
733                 case UCC_GETH_NUM_OF_THREADS_8:
734                         numThreadsRxNumerical = 8;
735                         break;
736                 default:
737                         numThreadsRxNumerical = 0;
738                         break;
739                 }
740
741                 ugeth_info("Thread data RX:");
742                 ugeth_info("Base address: 0x%08x",
743                            (u32) ugeth->p_thread_data_rx);
744                 for (i = 0; i < numThreadsRxNumerical; i++) {
745                         ugeth_info("Thread data RX[%d]:", i);
746                         ugeth_info("Base address: 0x%08x",
747                                    (u32) & ugeth->p_thread_data_rx[i]);
748                         mem_disp((u8 *) & ugeth->p_thread_data_rx[i],
749                                  sizeof(struct ucc_geth_thread_data_rx));
750                 }
751         }
752         if (ugeth->p_exf_glbl_param) {
753                 ugeth_info("EXF global param:");
754                 ugeth_info("Base address: 0x%08x",
755                            (u32) ugeth->p_exf_glbl_param);
756                 mem_disp((u8 *) ugeth->p_exf_glbl_param,
757                          sizeof(*ugeth->p_exf_glbl_param));
758         }
759         if (ugeth->p_tx_glbl_pram) {
760                 ugeth_info("TX global param:");
761                 ugeth_info("Base address: 0x%08x", (u32) ugeth->p_tx_glbl_pram);
762                 ugeth_info("temoder      : addr - 0x%08x, val - 0x%04x",
763                            (u32) & ugeth->p_tx_glbl_pram->temoder,
764                            in_be16(&ugeth->p_tx_glbl_pram->temoder));
765                 ugeth_info("sqptr        : addr - 0x%08x, val - 0x%08x",
766                            (u32) & ugeth->p_tx_glbl_pram->sqptr,
767                            in_be32(&ugeth->p_tx_glbl_pram->sqptr));
768                 ugeth_info("schedulerbasepointer: addr - 0x%08x, val - 0x%08x",
769                            (u32) & ugeth->p_tx_glbl_pram->schedulerbasepointer,
770                            in_be32(&ugeth->p_tx_glbl_pram->
771                                    schedulerbasepointer));
772                 ugeth_info("txrmonbaseptr: addr - 0x%08x, val - 0x%08x",
773                            (u32) & ugeth->p_tx_glbl_pram->txrmonbaseptr,
774                            in_be32(&ugeth->p_tx_glbl_pram->txrmonbaseptr));
775                 ugeth_info("tstate       : addr - 0x%08x, val - 0x%08x",
776                            (u32) & ugeth->p_tx_glbl_pram->tstate,
777                            in_be32(&ugeth->p_tx_glbl_pram->tstate));
778                 ugeth_info("iphoffset[0] : addr - 0x%08x, val - 0x%02x",
779                            (u32) & ugeth->p_tx_glbl_pram->iphoffset[0],
780                            ugeth->p_tx_glbl_pram->iphoffset[0]);
781                 ugeth_info("iphoffset[1] : addr - 0x%08x, val - 0x%02x",
782                            (u32) & ugeth->p_tx_glbl_pram->iphoffset[1],
783                            ugeth->p_tx_glbl_pram->iphoffset[1]);
784                 ugeth_info("iphoffset[2] : addr - 0x%08x, val - 0x%02x",
785                            (u32) & ugeth->p_tx_glbl_pram->iphoffset[2],
786                            ugeth->p_tx_glbl_pram->iphoffset[2]);
787                 ugeth_info("iphoffset[3] : addr - 0x%08x, val - 0x%02x",
788                            (u32) & ugeth->p_tx_glbl_pram->iphoffset[3],
789                            ugeth->p_tx_glbl_pram->iphoffset[3]);
790                 ugeth_info("iphoffset[4] : addr - 0x%08x, val - 0x%02x",
791                            (u32) & ugeth->p_tx_glbl_pram->iphoffset[4],
792                            ugeth->p_tx_glbl_pram->iphoffset[4]);
793                 ugeth_info("iphoffset[5] : addr - 0x%08x, val - 0x%02x",
794                            (u32) & ugeth->p_tx_glbl_pram->iphoffset[5],
795                            ugeth->p_tx_glbl_pram->iphoffset[5]);
796                 ugeth_info("iphoffset[6] : addr - 0x%08x, val - 0x%02x",
797                            (u32) & ugeth->p_tx_glbl_pram->iphoffset[6],
798                            ugeth->p_tx_glbl_pram->iphoffset[6]);
799                 ugeth_info("iphoffset[7] : addr - 0x%08x, val - 0x%02x",
800                            (u32) & ugeth->p_tx_glbl_pram->iphoffset[7],
801                            ugeth->p_tx_glbl_pram->iphoffset[7]);
802                 ugeth_info("vtagtable[0] : addr - 0x%08x, val - 0x%08x",
803                            (u32) & ugeth->p_tx_glbl_pram->vtagtable[0],
804                            in_be32(&ugeth->p_tx_glbl_pram->vtagtable[0]));
805                 ugeth_info("vtagtable[1] : addr - 0x%08x, val - 0x%08x",
806                            (u32) & ugeth->p_tx_glbl_pram->vtagtable[1],
807                            in_be32(&ugeth->p_tx_glbl_pram->vtagtable[1]));
808                 ugeth_info("vtagtable[2] : addr - 0x%08x, val - 0x%08x",
809                            (u32) & ugeth->p_tx_glbl_pram->vtagtable[2],
810                            in_be32(&ugeth->p_tx_glbl_pram->vtagtable[2]));
811                 ugeth_info("vtagtable[3] : addr - 0x%08x, val - 0x%08x",
812                            (u32) & ugeth->p_tx_glbl_pram->vtagtable[3],
813                            in_be32(&ugeth->p_tx_glbl_pram->vtagtable[3]));
814                 ugeth_info("vtagtable[4] : addr - 0x%08x, val - 0x%08x",
815                            (u32) & ugeth->p_tx_glbl_pram->vtagtable[4],
816                            in_be32(&ugeth->p_tx_glbl_pram->vtagtable[4]));
817                 ugeth_info("vtagtable[5] : addr - 0x%08x, val - 0x%08x",
818                            (u32) & ugeth->p_tx_glbl_pram->vtagtable[5],
819                            in_be32(&ugeth->p_tx_glbl_pram->vtagtable[5]));
820                 ugeth_info("vtagtable[6] : addr - 0x%08x, val - 0x%08x",
821                            (u32) & ugeth->p_tx_glbl_pram->vtagtable[6],
822                            in_be32(&ugeth->p_tx_glbl_pram->vtagtable[6]));
823                 ugeth_info("vtagtable[7] : addr - 0x%08x, val - 0x%08x",
824                            (u32) & ugeth->p_tx_glbl_pram->vtagtable[7],
825                            in_be32(&ugeth->p_tx_glbl_pram->vtagtable[7]));
826                 ugeth_info("tqptr        : addr - 0x%08x, val - 0x%08x",
827                            (u32) & ugeth->p_tx_glbl_pram->tqptr,
828                            in_be32(&ugeth->p_tx_glbl_pram->tqptr));
829         }
830         if (ugeth->p_rx_glbl_pram) {
831                 ugeth_info("RX global param:");
832                 ugeth_info("Base address: 0x%08x", (u32) ugeth->p_rx_glbl_pram);
833                 ugeth_info("remoder         : addr - 0x%08x, val - 0x%08x",
834                            (u32) & ugeth->p_rx_glbl_pram->remoder,
835                            in_be32(&ugeth->p_rx_glbl_pram->remoder));
836                 ugeth_info("rqptr           : addr - 0x%08x, val - 0x%08x",
837                            (u32) & ugeth->p_rx_glbl_pram->rqptr,
838                            in_be32(&ugeth->p_rx_glbl_pram->rqptr));
839                 ugeth_info("typeorlen       : addr - 0x%08x, val - 0x%04x",
840                            (u32) & ugeth->p_rx_glbl_pram->typeorlen,
841                            in_be16(&ugeth->p_rx_glbl_pram->typeorlen));
842                 ugeth_info("rxgstpack       : addr - 0x%08x, val - 0x%02x",
843                            (u32) & ugeth->p_rx_glbl_pram->rxgstpack,
844                            ugeth->p_rx_glbl_pram->rxgstpack);
845                 ugeth_info("rxrmonbaseptr   : addr - 0x%08x, val - 0x%08x",
846                            (u32) & ugeth->p_rx_glbl_pram->rxrmonbaseptr,
847                            in_be32(&ugeth->p_rx_glbl_pram->rxrmonbaseptr));
848                 ugeth_info("intcoalescingptr: addr - 0x%08x, val - 0x%08x",
849                            (u32) & ugeth->p_rx_glbl_pram->intcoalescingptr,
850                            in_be32(&ugeth->p_rx_glbl_pram->intcoalescingptr));
851                 ugeth_info("rstate          : addr - 0x%08x, val - 0x%02x",
852                            (u32) & ugeth->p_rx_glbl_pram->rstate,
853                            ugeth->p_rx_glbl_pram->rstate);
854                 ugeth_info("mrblr           : addr - 0x%08x, val - 0x%04x",
855                            (u32) & ugeth->p_rx_glbl_pram->mrblr,
856                            in_be16(&ugeth->p_rx_glbl_pram->mrblr));
857                 ugeth_info("rbdqptr         : addr - 0x%08x, val - 0x%08x",
858                            (u32) & ugeth->p_rx_glbl_pram->rbdqptr,
859                            in_be32(&ugeth->p_rx_glbl_pram->rbdqptr));
860                 ugeth_info("mflr            : addr - 0x%08x, val - 0x%04x",
861                            (u32) & ugeth->p_rx_glbl_pram->mflr,
862                            in_be16(&ugeth->p_rx_glbl_pram->mflr));
863                 ugeth_info("minflr          : addr - 0x%08x, val - 0x%04x",
864                            (u32) & ugeth->p_rx_glbl_pram->minflr,
865                            in_be16(&ugeth->p_rx_glbl_pram->minflr));
866                 ugeth_info("maxd1           : addr - 0x%08x, val - 0x%04x",
867                            (u32) & ugeth->p_rx_glbl_pram->maxd1,
868                            in_be16(&ugeth->p_rx_glbl_pram->maxd1));
869                 ugeth_info("maxd2           : addr - 0x%08x, val - 0x%04x",
870                            (u32) & ugeth->p_rx_glbl_pram->maxd2,
871                            in_be16(&ugeth->p_rx_glbl_pram->maxd2));
872                 ugeth_info("ecamptr         : addr - 0x%08x, val - 0x%08x",
873                            (u32) & ugeth->p_rx_glbl_pram->ecamptr,
874                            in_be32(&ugeth->p_rx_glbl_pram->ecamptr));
875                 ugeth_info("l2qt            : addr - 0x%08x, val - 0x%08x",
876                            (u32) & ugeth->p_rx_glbl_pram->l2qt,
877                            in_be32(&ugeth->p_rx_glbl_pram->l2qt));
878                 ugeth_info("l3qt[0]         : addr - 0x%08x, val - 0x%08x",
879                            (u32) & ugeth->p_rx_glbl_pram->l3qt[0],
880                            in_be32(&ugeth->p_rx_glbl_pram->l3qt[0]));
881                 ugeth_info("l3qt[1]         : addr - 0x%08x, val - 0x%08x",
882                            (u32) & ugeth->p_rx_glbl_pram->l3qt[1],
883                            in_be32(&ugeth->p_rx_glbl_pram->l3qt[1]));
884                 ugeth_info("l3qt[2]         : addr - 0x%08x, val - 0x%08x",
885                            (u32) & ugeth->p_rx_glbl_pram->l3qt[2],
886                            in_be32(&ugeth->p_rx_glbl_pram->l3qt[2]));
887                 ugeth_info("l3qt[3]         : addr - 0x%08x, val - 0x%08x",
888                            (u32) & ugeth->p_rx_glbl_pram->l3qt[3],
889                            in_be32(&ugeth->p_rx_glbl_pram->l3qt[3]));
890                 ugeth_info("l3qt[4]         : addr - 0x%08x, val - 0x%08x",
891                            (u32) & ugeth->p_rx_glbl_pram->l3qt[4],
892                            in_be32(&ugeth->p_rx_glbl_pram->l3qt[4]));
893                 ugeth_info("l3qt[5]         : addr - 0x%08x, val - 0x%08x",
894                            (u32) & ugeth->p_rx_glbl_pram->l3qt[5],
895                            in_be32(&ugeth->p_rx_glbl_pram->l3qt[5]));
896                 ugeth_info("l3qt[6]         : addr - 0x%08x, val - 0x%08x",
897                            (u32) & ugeth->p_rx_glbl_pram->l3qt[6],
898                            in_be32(&ugeth->p_rx_glbl_pram->l3qt[6]));
899                 ugeth_info("l3qt[7]         : addr - 0x%08x, val - 0x%08x",
900                            (u32) & ugeth->p_rx_glbl_pram->l3qt[7],
901                            in_be32(&ugeth->p_rx_glbl_pram->l3qt[7]));
902                 ugeth_info("vlantype        : addr - 0x%08x, val - 0x%04x",
903                            (u32) & ugeth->p_rx_glbl_pram->vlantype,
904                            in_be16(&ugeth->p_rx_glbl_pram->vlantype));
905                 ugeth_info("vlantci         : addr - 0x%08x, val - 0x%04x",
906                            (u32) & ugeth->p_rx_glbl_pram->vlantci,
907                            in_be16(&ugeth->p_rx_glbl_pram->vlantci));
908                 for (i = 0; i < 64; i++)
909                         ugeth_info
910                     ("addressfiltering[%d]: addr - 0x%08x, val - 0x%02x",
911                              i,
912                              (u32) & ugeth->p_rx_glbl_pram->addressfiltering[i],
913                              ugeth->p_rx_glbl_pram->addressfiltering[i]);
914                 ugeth_info("exfGlobalParam  : addr - 0x%08x, val - 0x%08x",
915                            (u32) & ugeth->p_rx_glbl_pram->exfGlobalParam,
916                            in_be32(&ugeth->p_rx_glbl_pram->exfGlobalParam));
917         }
918         if (ugeth->p_send_q_mem_reg) {
919                 ugeth_info("Send Q memory registers:");
920                 ugeth_info("Base address: 0x%08x",
921                            (u32) ugeth->p_send_q_mem_reg);
922                 for (i = 0; i < ugeth->ug_info->numQueuesTx; i++) {
923                         ugeth_info("SQQD[%d]:", i);
924                         ugeth_info("Base address: 0x%08x",
925                                    (u32) & ugeth->p_send_q_mem_reg->sqqd[i]);
926                         mem_disp((u8 *) & ugeth->p_send_q_mem_reg->sqqd[i],
927                                  sizeof(struct ucc_geth_send_queue_qd));
928                 }
929         }
930         if (ugeth->p_scheduler) {
931                 ugeth_info("Scheduler:");
932                 ugeth_info("Base address: 0x%08x", (u32) ugeth->p_scheduler);
933                 mem_disp((u8 *) ugeth->p_scheduler,
934                          sizeof(*ugeth->p_scheduler));
935         }
936         if (ugeth->p_tx_fw_statistics_pram) {
937                 ugeth_info("TX FW statistics pram:");
938                 ugeth_info("Base address: 0x%08x",
939                            (u32) ugeth->p_tx_fw_statistics_pram);
940                 mem_disp((u8 *) ugeth->p_tx_fw_statistics_pram,
941                          sizeof(*ugeth->p_tx_fw_statistics_pram));
942         }
943         if (ugeth->p_rx_fw_statistics_pram) {
944                 ugeth_info("RX FW statistics pram:");
945                 ugeth_info("Base address: 0x%08x",
946                            (u32) ugeth->p_rx_fw_statistics_pram);
947                 mem_disp((u8 *) ugeth->p_rx_fw_statistics_pram,
948                          sizeof(*ugeth->p_rx_fw_statistics_pram));
949         }
950         if (ugeth->p_rx_irq_coalescing_tbl) {
951                 ugeth_info("RX IRQ coalescing tables:");
952                 ugeth_info("Base address: 0x%08x",
953                            (u32) ugeth->p_rx_irq_coalescing_tbl);
954                 for (i = 0; i < ugeth->ug_info->numQueuesRx; i++) {
955                         ugeth_info("RX IRQ coalescing table entry[%d]:", i);
956                         ugeth_info("Base address: 0x%08x",
957                                    (u32) & ugeth->p_rx_irq_coalescing_tbl->
958                                    coalescingentry[i]);
959                         ugeth_info
960                 ("interruptcoalescingmaxvalue: addr - 0x%08x, val - 0x%08x",
961                              (u32) & ugeth->p_rx_irq_coalescing_tbl->
962                              coalescingentry[i].interruptcoalescingmaxvalue,
963                              in_be32(&ugeth->p_rx_irq_coalescing_tbl->
964                                      coalescingentry[i].
965                                      interruptcoalescingmaxvalue));
966                         ugeth_info
967                 ("interruptcoalescingcounter : addr - 0x%08x, val - 0x%08x",
968                              (u32) & ugeth->p_rx_irq_coalescing_tbl->
969                              coalescingentry[i].interruptcoalescingcounter,
970                              in_be32(&ugeth->p_rx_irq_coalescing_tbl->
971                                      coalescingentry[i].
972                                      interruptcoalescingcounter));
973                 }
974         }
975         if (ugeth->p_rx_bd_qs_tbl) {
976                 ugeth_info("RX BD QS tables:");
977                 ugeth_info("Base address: 0x%08x", (u32) ugeth->p_rx_bd_qs_tbl);
978                 for (i = 0; i < ugeth->ug_info->numQueuesRx; i++) {
979                         ugeth_info("RX BD QS table[%d]:", i);
980                         ugeth_info("Base address: 0x%08x",
981                                    (u32) & ugeth->p_rx_bd_qs_tbl[i]);
982                         ugeth_info
983                             ("bdbaseptr        : addr - 0x%08x, val - 0x%08x",
984                              (u32) & ugeth->p_rx_bd_qs_tbl[i].bdbaseptr,
985                              in_be32(&ugeth->p_rx_bd_qs_tbl[i].bdbaseptr));
986                         ugeth_info
987                             ("bdptr            : addr - 0x%08x, val - 0x%08x",
988                              (u32) & ugeth->p_rx_bd_qs_tbl[i].bdptr,
989                              in_be32(&ugeth->p_rx_bd_qs_tbl[i].bdptr));
990                         ugeth_info
991                             ("externalbdbaseptr: addr - 0x%08x, val - 0x%08x",
992                              (u32) & ugeth->p_rx_bd_qs_tbl[i].externalbdbaseptr,
993                              in_be32(&ugeth->p_rx_bd_qs_tbl[i].
994                                      externalbdbaseptr));
995                         ugeth_info
996                             ("externalbdptr    : addr - 0x%08x, val - 0x%08x",
997                              (u32) & ugeth->p_rx_bd_qs_tbl[i].externalbdptr,
998                              in_be32(&ugeth->p_rx_bd_qs_tbl[i].externalbdptr));
999                         ugeth_info("ucode RX Prefetched BDs:");
1000                         ugeth_info("Base address: 0x%08x",
1001                                    (u32)
1002                                    qe_muram_addr(in_be32
1003                                                  (&ugeth->p_rx_bd_qs_tbl[i].
1004                                                   bdbaseptr)));
1005                         mem_disp((u8 *)
1006                                  qe_muram_addr(in_be32
1007                                                (&ugeth->p_rx_bd_qs_tbl[i].
1008                                                 bdbaseptr)),
1009                                  sizeof(struct ucc_geth_rx_prefetched_bds));
1010                 }
1011         }
1012         if (ugeth->p_init_enet_param_shadow) {
1013                 int size;
1014                 ugeth_info("Init enet param shadow:");
1015                 ugeth_info("Base address: 0x%08x",
1016                            (u32) ugeth->p_init_enet_param_shadow);
1017                 mem_disp((u8 *) ugeth->p_init_enet_param_shadow,
1018                          sizeof(*ugeth->p_init_enet_param_shadow));
1019
1020                 size = sizeof(struct ucc_geth_thread_rx_pram);
1021                 if (ugeth->ug_info->rxExtendedFiltering) {
1022                         size +=
1023                             THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING;
1024                         if (ugeth->ug_info->largestexternallookupkeysize ==
1025                             QE_FLTR_TABLE_LOOKUP_KEY_SIZE_8_BYTES)
1026                                 size +=
1027                         THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING_8;
1028                         if (ugeth->ug_info->largestexternallookupkeysize ==
1029                             QE_FLTR_TABLE_LOOKUP_KEY_SIZE_16_BYTES)
1030                                 size +=
1031                         THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING_16;
1032                 }
1033
1034                 dump_init_enet_entries(ugeth,
1035                                        &(ugeth->p_init_enet_param_shadow->
1036                                          txthread[0]),
1037                                        ENET_INIT_PARAM_MAX_ENTRIES_TX,
1038                                        sizeof(struct ucc_geth_thread_tx_pram),
1039                                        ugeth->ug_info->riscTx, 0);
1040                 dump_init_enet_entries(ugeth,
1041                                        &(ugeth->p_init_enet_param_shadow->
1042                                          rxthread[0]),
1043                                        ENET_INIT_PARAM_MAX_ENTRIES_RX, size,
1044                                        ugeth->ug_info->riscRx, 1);
1045         }
1046 }
1047 #endif /* DEBUG */
1048
1049 static void init_default_reg_vals(u32 __iomem *upsmr_register,
1050                                   u32 __iomem *maccfg1_register,
1051                                   u32 __iomem *maccfg2_register)
1052 {
1053         out_be32(upsmr_register, UCC_GETH_UPSMR_INIT);
1054         out_be32(maccfg1_register, UCC_GETH_MACCFG1_INIT);
1055         out_be32(maccfg2_register, UCC_GETH_MACCFG2_INIT);
1056 }
1057
1058 static int init_half_duplex_params(int alt_beb,
1059                                    int back_pressure_no_backoff,
1060                                    int no_backoff,
1061                                    int excess_defer,
1062                                    u8 alt_beb_truncation,
1063                                    u8 max_retransmissions,
1064                                    u8 collision_window,
1065                                    u32 __iomem *hafdup_register)
1066 {
1067         u32 value = 0;
1068
1069         if ((alt_beb_truncation > HALFDUP_ALT_BEB_TRUNCATION_MAX) ||
1070             (max_retransmissions > HALFDUP_MAX_RETRANSMISSION_MAX) ||
1071             (collision_window > HALFDUP_COLLISION_WINDOW_MAX))
1072                 return -EINVAL;
1073
1074         value = (u32) (alt_beb_truncation << HALFDUP_ALT_BEB_TRUNCATION_SHIFT);
1075
1076         if (alt_beb)
1077                 value |= HALFDUP_ALT_BEB;
1078         if (back_pressure_no_backoff)
1079                 value |= HALFDUP_BACK_PRESSURE_NO_BACKOFF;
1080         if (no_backoff)
1081                 value |= HALFDUP_NO_BACKOFF;
1082         if (excess_defer)
1083                 value |= HALFDUP_EXCESSIVE_DEFER;
1084
1085         value |= (max_retransmissions << HALFDUP_MAX_RETRANSMISSION_SHIFT);
1086
1087         value |= collision_window;
1088
1089         out_be32(hafdup_register, value);
1090         return 0;
1091 }
1092
1093 static int init_inter_frame_gap_params(u8 non_btb_cs_ipg,
1094                                        u8 non_btb_ipg,
1095                                        u8 min_ifg,
1096                                        u8 btb_ipg,
1097                                        u32 __iomem *ipgifg_register)
1098 {
1099         u32 value = 0;
1100
1101         /* Non-Back-to-back IPG part 1 should be <= Non-Back-to-back
1102         IPG part 2 */
1103         if (non_btb_cs_ipg > non_btb_ipg)
1104                 return -EINVAL;
1105
1106         if ((non_btb_cs_ipg > IPGIFG_NON_BACK_TO_BACK_IFG_PART1_MAX) ||
1107             (non_btb_ipg > IPGIFG_NON_BACK_TO_BACK_IFG_PART2_MAX) ||
1108             /*(min_ifg        > IPGIFG_MINIMUM_IFG_ENFORCEMENT_MAX) || */
1109             (btb_ipg > IPGIFG_BACK_TO_BACK_IFG_MAX))
1110                 return -EINVAL;
1111
1112         value |=
1113             ((non_btb_cs_ipg << IPGIFG_NON_BACK_TO_BACK_IFG_PART1_SHIFT) &
1114              IPGIFG_NBTB_CS_IPG_MASK);
1115         value |=
1116             ((non_btb_ipg << IPGIFG_NON_BACK_TO_BACK_IFG_PART2_SHIFT) &
1117              IPGIFG_NBTB_IPG_MASK);
1118         value |=
1119             ((min_ifg << IPGIFG_MINIMUM_IFG_ENFORCEMENT_SHIFT) &
1120              IPGIFG_MIN_IFG_MASK);
1121         value |= (btb_ipg & IPGIFG_BTB_IPG_MASK);
1122
1123         out_be32(ipgifg_register, value);
1124         return 0;
1125 }
1126
1127 int init_flow_control_params(u32 automatic_flow_control_mode,
1128                                     int rx_flow_control_enable,
1129                                     int tx_flow_control_enable,
1130                                     u16 pause_period,
1131                                     u16 extension_field,
1132                                     u32 __iomem *upsmr_register,
1133                                     u32 __iomem *uempr_register,
1134                                     u32 __iomem *maccfg1_register)
1135 {
1136         u32 value = 0;
1137
1138         /* Set UEMPR register */
1139         value = (u32) pause_period << UEMPR_PAUSE_TIME_VALUE_SHIFT;
1140         value |= (u32) extension_field << UEMPR_EXTENDED_PAUSE_TIME_VALUE_SHIFT;
1141         out_be32(uempr_register, value);
1142
1143         /* Set UPSMR register */
1144         setbits32(upsmr_register, automatic_flow_control_mode);
1145
1146         value = in_be32(maccfg1_register);
1147         if (rx_flow_control_enable)
1148                 value |= MACCFG1_FLOW_RX;
1149         if (tx_flow_control_enable)
1150                 value |= MACCFG1_FLOW_TX;
1151         out_be32(maccfg1_register, value);
1152
1153         return 0;
1154 }
1155
1156 static int init_hw_statistics_gathering_mode(int enable_hardware_statistics,
1157                                              int auto_zero_hardware_statistics,
1158                                              u32 __iomem *upsmr_register,
1159                                              u16 __iomem *uescr_register)
1160 {
1161         u16 uescr_value = 0;
1162
1163         /* Enable hardware statistics gathering if requested */
1164         if (enable_hardware_statistics)
1165                 setbits32(upsmr_register, UCC_GETH_UPSMR_HSE);
1166
1167         /* Clear hardware statistics counters */
1168         uescr_value = in_be16(uescr_register);
1169         uescr_value |= UESCR_CLRCNT;
1170         /* Automatically zero hardware statistics counters on read,
1171         if requested */
1172         if (auto_zero_hardware_statistics)
1173                 uescr_value |= UESCR_AUTOZ;
1174         out_be16(uescr_register, uescr_value);
1175
1176         return 0;
1177 }
1178
1179 static int init_firmware_statistics_gathering_mode(int
1180                 enable_tx_firmware_statistics,
1181                 int enable_rx_firmware_statistics,
1182                 u32 __iomem *tx_rmon_base_ptr,
1183                 u32 tx_firmware_statistics_structure_address,
1184                 u32 __iomem *rx_rmon_base_ptr,
1185                 u32 rx_firmware_statistics_structure_address,
1186                 u16 __iomem *temoder_register,
1187                 u32 __iomem *remoder_register)
1188 {
1189         /* Note: this function does not check if */
1190         /* the parameters it receives are NULL   */
1191
1192         if (enable_tx_firmware_statistics) {
1193                 out_be32(tx_rmon_base_ptr,
1194                          tx_firmware_statistics_structure_address);
1195                 setbits16(temoder_register, TEMODER_TX_RMON_STATISTICS_ENABLE);
1196         }
1197
1198         if (enable_rx_firmware_statistics) {
1199                 out_be32(rx_rmon_base_ptr,
1200                          rx_firmware_statistics_structure_address);
1201                 setbits32(remoder_register, REMODER_RX_RMON_STATISTICS_ENABLE);
1202         }
1203
1204         return 0;
1205 }
1206
1207 static int init_mac_station_addr_regs(u8 address_byte_0,
1208                                       u8 address_byte_1,
1209                                       u8 address_byte_2,
1210                                       u8 address_byte_3,
1211                                       u8 address_byte_4,
1212                                       u8 address_byte_5,
1213                                       u32 __iomem *macstnaddr1_register,
1214                                       u32 __iomem *macstnaddr2_register)
1215 {
1216         u32 value = 0;
1217
1218         /* Example: for a station address of 0x12345678ABCD, */
1219         /* 0x12 is byte 0, 0x34 is byte 1 and so on and 0xCD is byte 5 */
1220
1221         /* MACSTNADDR1 Register: */
1222
1223         /* 0                      7   8                      15  */
1224         /* station address byte 5     station address byte 4     */
1225         /* 16                     23  24                     31  */
1226         /* station address byte 3     station address byte 2     */
1227         value |= (u32) ((address_byte_2 << 0) & 0x000000FF);
1228         value |= (u32) ((address_byte_3 << 8) & 0x0000FF00);
1229         value |= (u32) ((address_byte_4 << 16) & 0x00FF0000);
1230         value |= (u32) ((address_byte_5 << 24) & 0xFF000000);
1231
1232         out_be32(macstnaddr1_register, value);
1233
1234         /* MACSTNADDR2 Register: */
1235
1236         /* 0                      7   8                      15  */
1237         /* station address byte 1     station address byte 0     */
1238         /* 16                     23  24                     31  */
1239         /*         reserved                   reserved           */
1240         value = 0;
1241         value |= (u32) ((address_byte_0 << 16) & 0x00FF0000);
1242         value |= (u32) ((address_byte_1 << 24) & 0xFF000000);
1243
1244         out_be32(macstnaddr2_register, value);
1245
1246         return 0;
1247 }
1248
1249 static int init_check_frame_length_mode(int length_check,
1250                                         u32 __iomem *maccfg2_register)
1251 {
1252         u32 value = 0;
1253
1254         value = in_be32(maccfg2_register);
1255
1256         if (length_check)
1257                 value |= MACCFG2_LC;
1258         else
1259                 value &= ~MACCFG2_LC;
1260
1261         out_be32(maccfg2_register, value);
1262         return 0;
1263 }
1264
1265 static int init_preamble_length(u8 preamble_length,
1266                                 u32 __iomem *maccfg2_register)
1267 {
1268         if ((preamble_length < 3) || (preamble_length > 7))
1269                 return -EINVAL;
1270
1271         clrsetbits_be32(maccfg2_register, MACCFG2_PREL_MASK,
1272                         preamble_length << MACCFG2_PREL_SHIFT);
1273
1274         return 0;
1275 }
1276
1277 static int init_rx_parameters(int reject_broadcast,
1278                               int receive_short_frames,
1279                               int promiscuous, u32 __iomem *upsmr_register)
1280 {
1281         u32 value = 0;
1282
1283         value = in_be32(upsmr_register);
1284
1285         if (reject_broadcast)
1286                 value |= UCC_GETH_UPSMR_BRO;
1287         else
1288                 value &= ~UCC_GETH_UPSMR_BRO;
1289
1290         if (receive_short_frames)
1291                 value |= UCC_GETH_UPSMR_RSH;
1292         else
1293                 value &= ~UCC_GETH_UPSMR_RSH;
1294
1295         if (promiscuous)
1296                 value |= UCC_GETH_UPSMR_PRO;
1297         else
1298                 value &= ~UCC_GETH_UPSMR_PRO;
1299
1300         out_be32(upsmr_register, value);
1301
1302         return 0;
1303 }
1304
1305 static int init_max_rx_buff_len(u16 max_rx_buf_len,
1306                                 u16 __iomem *mrblr_register)
1307 {
1308         /* max_rx_buf_len value must be a multiple of 128 */
1309         if ((max_rx_buf_len == 0)
1310             || (max_rx_buf_len % UCC_GETH_MRBLR_ALIGNMENT))
1311                 return -EINVAL;
1312
1313         out_be16(mrblr_register, max_rx_buf_len);
1314         return 0;
1315 }
1316
1317 static int init_min_frame_len(u16 min_frame_length,
1318                               u16 __iomem *minflr_register,
1319                               u16 __iomem *mrblr_register)
1320 {
1321         u16 mrblr_value = 0;
1322
1323         mrblr_value = in_be16(mrblr_register);
1324         if (min_frame_length >= (mrblr_value - 4))
1325                 return -EINVAL;
1326
1327         out_be16(minflr_register, min_frame_length);
1328         return 0;
1329 }
1330
1331 static int adjust_enet_interface(struct ucc_geth_private *ugeth)
1332 {
1333         struct ucc_geth_info *ug_info;
1334         struct ucc_geth __iomem *ug_regs;
1335         struct ucc_fast __iomem *uf_regs;
1336         int ret_val;
1337         u32 upsmr, maccfg2, tbiBaseAddress;
1338         u16 value;
1339
1340         ugeth_vdbg("%s: IN", __func__);
1341
1342         ug_info = ugeth->ug_info;
1343         ug_regs = ugeth->ug_regs;
1344         uf_regs = ugeth->uccf->uf_regs;
1345
1346         /*                    Set MACCFG2                    */
1347         maccfg2 = in_be32(&ug_regs->maccfg2);
1348         maccfg2 &= ~MACCFG2_INTERFACE_MODE_MASK;
1349         if ((ugeth->max_speed == SPEED_10) ||
1350             (ugeth->max_speed == SPEED_100))
1351                 maccfg2 |= MACCFG2_INTERFACE_MODE_NIBBLE;
1352         else if (ugeth->max_speed == SPEED_1000)
1353                 maccfg2 |= MACCFG2_INTERFACE_MODE_BYTE;
1354         maccfg2 |= ug_info->padAndCrc;
1355         out_be32(&ug_regs->maccfg2, maccfg2);
1356
1357         /*                    Set UPSMR                      */
1358         upsmr = in_be32(&uf_regs->upsmr);
1359         upsmr &= ~(UCC_GETH_UPSMR_RPM | UCC_GETH_UPSMR_R10M |
1360                    UCC_GETH_UPSMR_TBIM | UCC_GETH_UPSMR_RMM);
1361         if ((ugeth->phy_interface == PHY_INTERFACE_MODE_RMII) ||
1362             (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII) ||
1363             (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII_ID) ||
1364             (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII_RXID) ||
1365             (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII_TXID) ||
1366             (ugeth->phy_interface == PHY_INTERFACE_MODE_RTBI)) {
1367                 if (ugeth->phy_interface != PHY_INTERFACE_MODE_RMII)
1368                         upsmr |= UCC_GETH_UPSMR_RPM;
1369                 switch (ugeth->max_speed) {
1370                 case SPEED_10:
1371                         upsmr |= UCC_GETH_UPSMR_R10M;
1372                         /* FALLTHROUGH */
1373                 case SPEED_100:
1374                         if (ugeth->phy_interface != PHY_INTERFACE_MODE_RTBI)
1375                                 upsmr |= UCC_GETH_UPSMR_RMM;
1376                 }
1377         }
1378         if ((ugeth->phy_interface == PHY_INTERFACE_MODE_TBI) ||
1379             (ugeth->phy_interface == PHY_INTERFACE_MODE_RTBI)) {
1380                 upsmr |= UCC_GETH_UPSMR_TBIM;
1381         }
1382         if ((ugeth->phy_interface == PHY_INTERFACE_MODE_SGMII))
1383                 upsmr |= UCC_GETH_UPSMR_SGMM;
1384
1385         out_be32(&uf_regs->upsmr, upsmr);
1386
1387         /* Disable autonegotiation in tbi mode, because by default it
1388         comes up in autonegotiation mode. */
1389         /* Note that this depends on proper setting in utbipar register. */
1390         if ((ugeth->phy_interface == PHY_INTERFACE_MODE_TBI) ||
1391             (ugeth->phy_interface == PHY_INTERFACE_MODE_RTBI)) {
1392                 tbiBaseAddress = in_be32(&ug_regs->utbipar);
1393                 tbiBaseAddress &= UTBIPAR_PHY_ADDRESS_MASK;
1394                 tbiBaseAddress >>= UTBIPAR_PHY_ADDRESS_SHIFT;
1395                 value = ugeth->phydev->bus->read(ugeth->phydev->bus,
1396                                 (u8) tbiBaseAddress, ENET_TBI_MII_CR);
1397                 value &= ~0x1000;       /* Turn off autonegotiation */
1398                 ugeth->phydev->bus->write(ugeth->phydev->bus,
1399                                 (u8) tbiBaseAddress, ENET_TBI_MII_CR, value);
1400         }
1401
1402         init_check_frame_length_mode(ug_info->lengthCheckRx, &ug_regs->maccfg2);
1403
1404         ret_val = init_preamble_length(ug_info->prel, &ug_regs->maccfg2);
1405         if (ret_val != 0) {
1406                 if (netif_msg_probe(ugeth))
1407                         ugeth_err("%s: Preamble length must be between 3 and 7 inclusive.",
1408                              __func__);
1409                 return ret_val;
1410         }
1411
1412         return 0;
1413 }
1414
1415 static int ugeth_graceful_stop_tx(struct ucc_geth_private *ugeth)
1416 {
1417         struct ucc_fast_private *uccf;
1418         u32 cecr_subblock;
1419         u32 temp;
1420         int i = 10;
1421
1422         uccf = ugeth->uccf;
1423
1424         /* Mask GRACEFUL STOP TX interrupt bit and clear it */
1425         clrbits32(uccf->p_uccm, UCC_GETH_UCCE_GRA);
1426         out_be32(uccf->p_ucce, UCC_GETH_UCCE_GRA);  /* clear by writing 1 */
1427
1428         /* Issue host command */
1429         cecr_subblock =
1430             ucc_fast_get_qe_cr_subblock(ugeth->ug_info->uf_info.ucc_num);
1431         qe_issue_cmd(QE_GRACEFUL_STOP_TX, cecr_subblock,
1432                      QE_CR_PROTOCOL_ETHERNET, 0);
1433
1434         /* Wait for command to complete */
1435         do {
1436                 msleep(10);
1437                 temp = in_be32(uccf->p_ucce);
1438         } while (!(temp & UCC_GETH_UCCE_GRA) && --i);
1439
1440         uccf->stopped_tx = 1;
1441
1442         return 0;
1443 }
1444
1445 static int ugeth_graceful_stop_rx(struct ucc_geth_private *ugeth)
1446 {
1447         struct ucc_fast_private *uccf;
1448         u32 cecr_subblock;
1449         u8 temp;
1450         int i = 10;
1451
1452         uccf = ugeth->uccf;
1453
1454         /* Clear acknowledge bit */
1455         temp = in_8(&ugeth->p_rx_glbl_pram->rxgstpack);
1456         temp &= ~GRACEFUL_STOP_ACKNOWLEDGE_RX;
1457         out_8(&ugeth->p_rx_glbl_pram->rxgstpack, temp);
1458
1459         /* Keep issuing command and checking acknowledge bit until
1460         it is asserted, according to spec */
1461         do {
1462                 /* Issue host command */
1463                 cecr_subblock =
1464                     ucc_fast_get_qe_cr_subblock(ugeth->ug_info->uf_info.
1465                                                 ucc_num);
1466                 qe_issue_cmd(QE_GRACEFUL_STOP_RX, cecr_subblock,
1467                              QE_CR_PROTOCOL_ETHERNET, 0);
1468                 msleep(10);
1469                 temp = in_8(&ugeth->p_rx_glbl_pram->rxgstpack);
1470         } while (!(temp & GRACEFUL_STOP_ACKNOWLEDGE_RX) && --i);
1471
1472         uccf->stopped_rx = 1;
1473
1474         return 0;
1475 }
1476
1477 static int ugeth_restart_tx(struct ucc_geth_private *ugeth)
1478 {
1479         struct ucc_fast_private *uccf;
1480         u32 cecr_subblock;
1481
1482         uccf = ugeth->uccf;
1483
1484         cecr_subblock =
1485             ucc_fast_get_qe_cr_subblock(ugeth->ug_info->uf_info.ucc_num);
1486         qe_issue_cmd(QE_RESTART_TX, cecr_subblock, QE_CR_PROTOCOL_ETHERNET, 0);
1487         uccf->stopped_tx = 0;
1488
1489         return 0;
1490 }
1491
1492 static int ugeth_restart_rx(struct ucc_geth_private *ugeth)
1493 {
1494         struct ucc_fast_private *uccf;
1495         u32 cecr_subblock;
1496
1497         uccf = ugeth->uccf;
1498
1499         cecr_subblock =
1500             ucc_fast_get_qe_cr_subblock(ugeth->ug_info->uf_info.ucc_num);
1501         qe_issue_cmd(QE_RESTART_RX, cecr_subblock, QE_CR_PROTOCOL_ETHERNET,
1502                      0);
1503         uccf->stopped_rx = 0;
1504
1505         return 0;
1506 }
1507
1508 static int ugeth_enable(struct ucc_geth_private *ugeth, enum comm_dir mode)
1509 {
1510         struct ucc_fast_private *uccf;
1511         int enabled_tx, enabled_rx;
1512
1513         uccf = ugeth->uccf;
1514
1515         /* check if the UCC number is in range. */
1516         if (ugeth->ug_info->uf_info.ucc_num >= UCC_MAX_NUM) {
1517                 if (netif_msg_probe(ugeth))
1518                         ugeth_err("%s: ucc_num out of range.", __func__);
1519                 return -EINVAL;
1520         }
1521
1522         enabled_tx = uccf->enabled_tx;
1523         enabled_rx = uccf->enabled_rx;
1524
1525         /* Get Tx and Rx going again, in case this channel was actively
1526         disabled. */
1527         if ((mode & COMM_DIR_TX) && (!enabled_tx) && uccf->stopped_tx)
1528                 ugeth_restart_tx(ugeth);
1529         if ((mode & COMM_DIR_RX) && (!enabled_rx) && uccf->stopped_rx)
1530                 ugeth_restart_rx(ugeth);
1531
1532         ucc_fast_enable(uccf, mode);    /* OK to do even if not disabled */
1533
1534         return 0;
1535
1536 }
1537
1538 static int ugeth_disable(struct ucc_geth_private *ugeth, enum comm_dir mode)
1539 {
1540         struct ucc_fast_private *uccf;
1541
1542         uccf = ugeth->uccf;
1543
1544         /* check if the UCC number is in range. */
1545         if (ugeth->ug_info->uf_info.ucc_num >= UCC_MAX_NUM) {
1546                 if (netif_msg_probe(ugeth))
1547                         ugeth_err("%s: ucc_num out of range.", __func__);
1548                 return -EINVAL;
1549         }
1550
1551         /* Stop any transmissions */
1552         if ((mode & COMM_DIR_TX) && uccf->enabled_tx && !uccf->stopped_tx)
1553                 ugeth_graceful_stop_tx(ugeth);
1554
1555         /* Stop any receptions */
1556         if ((mode & COMM_DIR_RX) && uccf->enabled_rx && !uccf->stopped_rx)
1557                 ugeth_graceful_stop_rx(ugeth);
1558
1559         ucc_fast_disable(ugeth->uccf, mode); /* OK to do even if not enabled */
1560
1561         return 0;
1562 }
1563
1564 static void ugeth_quiesce(struct ucc_geth_private *ugeth)
1565 {
1566         /* Wait for and prevent any further xmits. */
1567         netif_tx_disable(ugeth->ndev);
1568
1569         /* Disable the interrupt to avoid NAPI rescheduling. */
1570         disable_irq(ugeth->ug_info->uf_info.irq);
1571
1572         /* Stop NAPI, and possibly wait for its completion. */
1573         napi_disable(&ugeth->napi);
1574 }
1575
1576 static void ugeth_activate(struct ucc_geth_private *ugeth)
1577 {
1578         napi_enable(&ugeth->napi);
1579         enable_irq(ugeth->ug_info->uf_info.irq);
1580         netif_tx_wake_all_queues(ugeth->ndev);
1581 }
1582
1583 /* Called every time the controller might need to be made
1584  * aware of new link state.  The PHY code conveys this
1585  * information through variables in the ugeth structure, and this
1586  * function converts those variables into the appropriate
1587  * register values, and can bring down the device if needed.
1588  */
1589
1590 static void adjust_link(struct net_device *dev)
1591 {
1592         struct ucc_geth_private *ugeth = netdev_priv(dev);
1593         struct ucc_geth __iomem *ug_regs;
1594         struct ucc_fast __iomem *uf_regs;
1595         struct phy_device *phydev = ugeth->phydev;
1596         int new_state = 0;
1597
1598         ug_regs = ugeth->ug_regs;
1599         uf_regs = ugeth->uccf->uf_regs;
1600
1601         if (phydev->link) {
1602                 u32 tempval = in_be32(&ug_regs->maccfg2);
1603                 u32 upsmr = in_be32(&uf_regs->upsmr);
1604                 /* Now we make sure that we can be in full duplex mode.
1605                  * If not, we operate in half-duplex mode. */
1606                 if (phydev->duplex != ugeth->oldduplex) {
1607                         new_state = 1;
1608                         if (!(phydev->duplex))
1609                                 tempval &= ~(MACCFG2_FDX);
1610                         else
1611                                 tempval |= MACCFG2_FDX;
1612                         ugeth->oldduplex = phydev->duplex;
1613                 }
1614
1615                 if (phydev->speed != ugeth->oldspeed) {
1616                         new_state = 1;
1617                         switch (phydev->speed) {
1618                         case SPEED_1000:
1619                                 tempval = ((tempval &
1620                                             ~(MACCFG2_INTERFACE_MODE_MASK)) |
1621                                             MACCFG2_INTERFACE_MODE_BYTE);
1622                                 break;
1623                         case SPEED_100:
1624                         case SPEED_10:
1625                                 tempval = ((tempval &
1626                                             ~(MACCFG2_INTERFACE_MODE_MASK)) |
1627                                             MACCFG2_INTERFACE_MODE_NIBBLE);
1628                                 /* if reduced mode, re-set UPSMR.R10M */
1629                                 if ((ugeth->phy_interface == PHY_INTERFACE_MODE_RMII) ||
1630                                     (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII) ||
1631                                     (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII_ID) ||
1632                                     (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII_RXID) ||
1633                                     (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII_TXID) ||
1634                                     (ugeth->phy_interface == PHY_INTERFACE_MODE_RTBI)) {
1635                                         if (phydev->speed == SPEED_10)
1636                                                 upsmr |= UCC_GETH_UPSMR_R10M;
1637                                         else
1638                                                 upsmr &= ~UCC_GETH_UPSMR_R10M;
1639                                 }
1640                                 break;
1641                         default:
1642                                 if (netif_msg_link(ugeth))
1643                                         ugeth_warn(
1644                                                 "%s: Ack!  Speed (%d) is not 10/100/1000!",
1645                                                 dev->name, phydev->speed);
1646                                 break;
1647                         }
1648                         ugeth->oldspeed = phydev->speed;
1649                 }
1650
1651                 /*
1652                  * To change the MAC configuration we need to disable the
1653                  * controller. To do so, we have to either grab ugeth->lock,
1654                  * which is a bad idea since 'graceful stop' commands might
1655                  * take quite a while, or we can quiesce driver's activity.
1656                  */
1657                 ugeth_quiesce(ugeth);
1658                 ugeth_disable(ugeth, COMM_DIR_RX_AND_TX);
1659
1660                 out_be32(&ug_regs->maccfg2, tempval);
1661                 out_be32(&uf_regs->upsmr, upsmr);
1662
1663                 ugeth_enable(ugeth, COMM_DIR_RX_AND_TX);
1664                 ugeth_activate(ugeth);
1665
1666                 if (!ugeth->oldlink) {
1667                         new_state = 1;
1668                         ugeth->oldlink = 1;
1669                 }
1670         } else if (ugeth->oldlink) {
1671                         new_state = 1;
1672                         ugeth->oldlink = 0;
1673                         ugeth->oldspeed = 0;
1674                         ugeth->oldduplex = -1;
1675         }
1676
1677         if (new_state && netif_msg_link(ugeth))
1678                 phy_print_status(phydev);
1679 }
1680
1681 /* Initialize TBI PHY interface for communicating with the
1682  * SERDES lynx PHY on the chip.  We communicate with this PHY
1683  * through the MDIO bus on each controller, treating it as a
1684  * "normal" PHY at the address found in the UTBIPA register.  We assume
1685  * that the UTBIPA register is valid.  Either the MDIO bus code will set
1686  * it to a value that doesn't conflict with other PHYs on the bus, or the
1687  * value doesn't matter, as there are no other PHYs on the bus.
1688  */
1689 static void uec_configure_serdes(struct net_device *dev)
1690 {
1691         struct ucc_geth_private *ugeth = netdev_priv(dev);
1692         struct ucc_geth_info *ug_info = ugeth->ug_info;
1693         struct phy_device *tbiphy;
1694
1695         if (!ug_info->tbi_node) {
1696                 dev_warn(&dev->dev, "SGMII mode requires that the device "
1697                         "tree specify a tbi-handle\n");
1698                 return;
1699         }
1700
1701         tbiphy = of_phy_find_device(ug_info->tbi_node);
1702         if (!tbiphy) {
1703                 dev_err(&dev->dev, "error: Could not get TBI device\n");
1704                 return;
1705         }
1706
1707         /*
1708          * If the link is already up, we must already be ok, and don't need to
1709          * configure and reset the TBI<->SerDes link.  Maybe U-Boot configured
1710          * everything for us?  Resetting it takes the link down and requires
1711          * several seconds for it to come back.
1712          */
1713         if (phy_read(tbiphy, ENET_TBI_MII_SR) & TBISR_LSTATUS)
1714                 return;
1715
1716         /* Single clk mode, mii mode off(for serdes communication) */
1717         phy_write(tbiphy, ENET_TBI_MII_ANA, TBIANA_SETTINGS);
1718
1719         phy_write(tbiphy, ENET_TBI_MII_TBICON, TBICON_CLK_SELECT);
1720
1721         phy_write(tbiphy, ENET_TBI_MII_CR, TBICR_SETTINGS);
1722 }
1723
1724 /* Configure the PHY for dev.
1725  * returns 0 if success.  -1 if failure
1726  */
1727 static int init_phy(struct net_device *dev)
1728 {
1729         struct ucc_geth_private *priv = netdev_priv(dev);
1730         struct ucc_geth_info *ug_info = priv->ug_info;
1731         struct phy_device *phydev;
1732
1733         priv->oldlink = 0;
1734         priv->oldspeed = 0;
1735         priv->oldduplex = -1;
1736
1737         phydev = of_phy_connect(dev, ug_info->phy_node, &adjust_link, 0,
1738                                 priv->phy_interface);
1739         if (!phydev)
1740                 phydev = of_phy_connect_fixed_link(dev, &adjust_link,
1741                                                    priv->phy_interface);
1742         if (!phydev) {
1743                 dev_err(&dev->dev, "Could not attach to PHY\n");
1744                 return -ENODEV;
1745         }
1746
1747         if (priv->phy_interface == PHY_INTERFACE_MODE_SGMII)
1748                 uec_configure_serdes(dev);
1749
1750         phydev->supported &= (ADVERTISED_10baseT_Half |
1751                                  ADVERTISED_10baseT_Full |
1752                                  ADVERTISED_100baseT_Half |
1753                                  ADVERTISED_100baseT_Full);
1754
1755         if (priv->max_speed == SPEED_1000)
1756                 phydev->supported |= ADVERTISED_1000baseT_Full;
1757
1758         phydev->advertising = phydev->supported;
1759
1760         priv->phydev = phydev;
1761
1762         return 0;
1763 }
1764
1765 static void ugeth_dump_regs(struct ucc_geth_private *ugeth)
1766 {
1767 #ifdef DEBUG
1768         ucc_fast_dump_regs(ugeth->uccf);
1769         dump_regs(ugeth);
1770         dump_bds(ugeth);
1771 #endif
1772 }
1773
1774 static int ugeth_82xx_filtering_clear_all_addr_in_hash(struct ucc_geth_private *
1775                                                        ugeth,
1776                                                        enum enet_addr_type
1777                                                        enet_addr_type)
1778 {
1779         struct ucc_geth_82xx_address_filtering_pram __iomem *p_82xx_addr_filt;
1780         struct ucc_fast_private *uccf;
1781         enum comm_dir comm_dir;
1782         struct list_head *p_lh;
1783         u16 i, num;
1784         u32 __iomem *addr_h;
1785         u32 __iomem *addr_l;
1786         u8 *p_counter;
1787
1788         uccf = ugeth->uccf;
1789
1790         p_82xx_addr_filt =
1791             (struct ucc_geth_82xx_address_filtering_pram __iomem *)
1792             ugeth->p_rx_glbl_pram->addressfiltering;
1793
1794         if (enet_addr_type == ENET_ADDR_TYPE_GROUP) {
1795                 addr_h = &(p_82xx_addr_filt->gaddr_h);
1796                 addr_l = &(p_82xx_addr_filt->gaddr_l);
1797                 p_lh = &ugeth->group_hash_q;
1798                 p_counter = &(ugeth->numGroupAddrInHash);
1799         } else if (enet_addr_type == ENET_ADDR_TYPE_INDIVIDUAL) {
1800                 addr_h = &(p_82xx_addr_filt->iaddr_h);
1801                 addr_l = &(p_82xx_addr_filt->iaddr_l);
1802                 p_lh = &ugeth->ind_hash_q;
1803                 p_counter = &(ugeth->numIndAddrInHash);
1804         } else
1805                 return -EINVAL;
1806
1807         comm_dir = 0;
1808         if (uccf->enabled_tx)
1809                 comm_dir |= COMM_DIR_TX;
1810         if (uccf->enabled_rx)
1811                 comm_dir |= COMM_DIR_RX;
1812         if (comm_dir)
1813                 ugeth_disable(ugeth, comm_dir);
1814
1815         /* Clear the hash table. */
1816         out_be32(addr_h, 0x00000000);
1817         out_be32(addr_l, 0x00000000);
1818
1819         if (!p_lh)
1820                 return 0;
1821
1822         num = *p_counter;
1823
1824         /* Delete all remaining CQ elements */
1825         for (i = 0; i < num; i++)
1826                 put_enet_addr_container(ENET_ADDR_CONT_ENTRY(dequeue(p_lh)));
1827
1828         *p_counter = 0;
1829
1830         if (comm_dir)
1831                 ugeth_enable(ugeth, comm_dir);
1832
1833         return 0;
1834 }
1835
1836 static int ugeth_82xx_filtering_clear_addr_in_paddr(struct ucc_geth_private *ugeth,
1837                                                     u8 paddr_num)
1838 {
1839         ugeth->indAddrRegUsed[paddr_num] = 0; /* mark this paddr as not used */
1840         return hw_clear_addr_in_paddr(ugeth, paddr_num);/* clear in hardware */
1841 }
1842
1843 static void ucc_geth_memclean(struct ucc_geth_private *ugeth)
1844 {
1845         u16 i, j;
1846         u8 __iomem *bd;
1847
1848         if (!ugeth)
1849                 return;
1850
1851         if (ugeth->uccf) {
1852                 ucc_fast_free(ugeth->uccf);
1853                 ugeth->uccf = NULL;
1854         }
1855
1856         if (ugeth->p_thread_data_tx) {
1857                 qe_muram_free(ugeth->thread_dat_tx_offset);
1858                 ugeth->p_thread_data_tx = NULL;
1859         }
1860         if (ugeth->p_thread_data_rx) {
1861                 qe_muram_free(ugeth->thread_dat_rx_offset);
1862                 ugeth->p_thread_data_rx = NULL;
1863         }
1864         if (ugeth->p_exf_glbl_param) {
1865                 qe_muram_free(ugeth->exf_glbl_param_offset);
1866                 ugeth->p_exf_glbl_param = NULL;
1867         }
1868         if (ugeth->p_rx_glbl_pram) {
1869                 qe_muram_free(ugeth->rx_glbl_pram_offset);
1870                 ugeth->p_rx_glbl_pram = NULL;
1871         }
1872         if (ugeth->p_tx_glbl_pram) {
1873                 qe_muram_free(ugeth->tx_glbl_pram_offset);
1874                 ugeth->p_tx_glbl_pram = NULL;
1875         }
1876         if (ugeth->p_send_q_mem_reg) {
1877                 qe_muram_free(ugeth->send_q_mem_reg_offset);
1878                 ugeth->p_send_q_mem_reg = NULL;
1879         }
1880         if (ugeth->p_scheduler) {
1881                 qe_muram_free(ugeth->scheduler_offset);
1882                 ugeth->p_scheduler = NULL;
1883         }
1884         if (ugeth->p_tx_fw_statistics_pram) {
1885                 qe_muram_free(ugeth->tx_fw_statistics_pram_offset);
1886                 ugeth->p_tx_fw_statistics_pram = NULL;
1887         }
1888         if (ugeth->p_rx_fw_statistics_pram) {
1889                 qe_muram_free(ugeth->rx_fw_statistics_pram_offset);
1890                 ugeth->p_rx_fw_statistics_pram = NULL;
1891         }
1892         if (ugeth->p_rx_irq_coalescing_tbl) {
1893                 qe_muram_free(ugeth->rx_irq_coalescing_tbl_offset);
1894                 ugeth->p_rx_irq_coalescing_tbl = NULL;
1895         }
1896         if (ugeth->p_rx_bd_qs_tbl) {
1897                 qe_muram_free(ugeth->rx_bd_qs_tbl_offset);
1898                 ugeth->p_rx_bd_qs_tbl = NULL;
1899         }
1900         if (ugeth->p_init_enet_param_shadow) {
1901                 return_init_enet_entries(ugeth,
1902                                          &(ugeth->p_init_enet_param_shadow->
1903                                            rxthread[0]),
1904                                          ENET_INIT_PARAM_MAX_ENTRIES_RX,
1905                                          ugeth->ug_info->riscRx, 1);
1906                 return_init_enet_entries(ugeth,
1907                                          &(ugeth->p_init_enet_param_shadow->
1908                                            txthread[0]),
1909                                          ENET_INIT_PARAM_MAX_ENTRIES_TX,
1910                                          ugeth->ug_info->riscTx, 0);
1911                 kfree(ugeth->p_init_enet_param_shadow);
1912                 ugeth->p_init_enet_param_shadow = NULL;
1913         }
1914         for (i = 0; i < ugeth->ug_info->numQueuesTx; i++) {
1915                 bd = ugeth->p_tx_bd_ring[i];
1916                 if (!bd)
1917                         continue;
1918                 for (j = 0; j < ugeth->ug_info->bdRingLenTx[i]; j++) {
1919                         if (ugeth->tx_skbuff[i][j]) {
1920                                 dma_unmap_single(ugeth->dev,
1921                                                  in_be32(&((struct qe_bd __iomem *)bd)->buf),
1922                                                  (in_be32((u32 __iomem *)bd) &
1923                                                   BD_LENGTH_MASK),
1924                                                  DMA_TO_DEVICE);
1925                                 dev_kfree_skb_any(ugeth->tx_skbuff[i][j]);
1926                                 ugeth->tx_skbuff[i][j] = NULL;
1927                         }
1928                 }
1929
1930                 kfree(ugeth->tx_skbuff[i]);
1931
1932                 if (ugeth->p_tx_bd_ring[i]) {
1933                         if (ugeth->ug_info->uf_info.bd_mem_part ==
1934                             MEM_PART_SYSTEM)
1935                                 kfree((void *)ugeth->tx_bd_ring_offset[i]);
1936                         else if (ugeth->ug_info->uf_info.bd_mem_part ==
1937                                  MEM_PART_MURAM)
1938                                 qe_muram_free(ugeth->tx_bd_ring_offset[i]);
1939                         ugeth->p_tx_bd_ring[i] = NULL;
1940                 }
1941         }
1942         for (i = 0; i < ugeth->ug_info->numQueuesRx; i++) {
1943                 if (ugeth->p_rx_bd_ring[i]) {
1944                         /* Return existing data buffers in ring */
1945                         bd = ugeth->p_rx_bd_ring[i];
1946                         for (j = 0; j < ugeth->ug_info->bdRingLenRx[i]; j++) {
1947                                 if (ugeth->rx_skbuff[i][j]) {
1948                                         dma_unmap_single(ugeth->dev,
1949                                                 in_be32(&((struct qe_bd __iomem *)bd)->buf),
1950                                                 ugeth->ug_info->
1951                                                 uf_info.max_rx_buf_length +
1952                                                 UCC_GETH_RX_DATA_BUF_ALIGNMENT,
1953                                                 DMA_FROM_DEVICE);
1954                                         dev_kfree_skb_any(
1955                                                 ugeth->rx_skbuff[i][j]);
1956                                         ugeth->rx_skbuff[i][j] = NULL;
1957                                 }
1958                                 bd += sizeof(struct qe_bd);
1959                         }
1960
1961                         kfree(ugeth->rx_skbuff[i]);
1962
1963                         if (ugeth->ug_info->uf_info.bd_mem_part ==
1964                             MEM_PART_SYSTEM)
1965                                 kfree((void *)ugeth->rx_bd_ring_offset[i]);
1966                         else if (ugeth->ug_info->uf_info.bd_mem_part ==
1967                                  MEM_PART_MURAM)
1968                                 qe_muram_free(ugeth->rx_bd_ring_offset[i]);
1969                         ugeth->p_rx_bd_ring[i] = NULL;
1970                 }
1971         }
1972         while (!list_empty(&ugeth->group_hash_q))
1973                 put_enet_addr_container(ENET_ADDR_CONT_ENTRY
1974                                         (dequeue(&ugeth->group_hash_q)));
1975         while (!list_empty(&ugeth->ind_hash_q))
1976                 put_enet_addr_container(ENET_ADDR_CONT_ENTRY
1977                                         (dequeue(&ugeth->ind_hash_q)));
1978         if (ugeth->ug_regs) {
1979                 iounmap(ugeth->ug_regs);
1980                 ugeth->ug_regs = NULL;
1981         }
1982
1983         skb_queue_purge(&ugeth->rx_recycle);
1984 }
1985
1986 static void ucc_geth_set_multi(struct net_device *dev)
1987 {
1988         struct ucc_geth_private *ugeth;
1989         struct dev_mc_list *dmi;
1990         struct ucc_fast __iomem *uf_regs;
1991         struct ucc_geth_82xx_address_filtering_pram __iomem *p_82xx_addr_filt;
1992         int i;
1993
1994         ugeth = netdev_priv(dev);
1995
1996         uf_regs = ugeth->uccf->uf_regs;
1997
1998         if (dev->flags & IFF_PROMISC) {
1999                 setbits32(&uf_regs->upsmr, UCC_GETH_UPSMR_PRO);
2000         } else {
2001                 clrbits32(&uf_regs->upsmr, UCC_GETH_UPSMR_PRO);
2002
2003                 p_82xx_addr_filt =
2004                     (struct ucc_geth_82xx_address_filtering_pram __iomem *) ugeth->
2005                     p_rx_glbl_pram->addressfiltering;
2006
2007                 if (dev->flags & IFF_ALLMULTI) {
2008                         /* Catch all multicast addresses, so set the
2009                          * filter to all 1's.
2010                          */
2011                         out_be32(&p_82xx_addr_filt->gaddr_h, 0xffffffff);
2012                         out_be32(&p_82xx_addr_filt->gaddr_l, 0xffffffff);
2013                 } else {
2014                         /* Clear filter and add the addresses in the list.
2015                          */
2016                         out_be32(&p_82xx_addr_filt->gaddr_h, 0x0);
2017                         out_be32(&p_82xx_addr_filt->gaddr_l, 0x0);
2018
2019                         dmi = dev->mc_list;
2020
2021                         for (i = 0; i < dev->mc_count; i++, dmi = dmi->next) {
2022
2023                                 /* Only support group multicast for now.
2024                                  */
2025                                 if (!(dmi->dmi_addr[0] & 1))
2026                                         continue;
2027
2028                                 /* Ask CPM to run CRC and set bit in
2029                                  * filter mask.
2030                                  */
2031                                 hw_add_addr_in_hash(ugeth, dmi->dmi_addr);
2032                         }
2033                 }
2034         }
2035 }
2036
2037 static void ucc_geth_stop(struct ucc_geth_private *ugeth)
2038 {
2039         struct ucc_geth __iomem *ug_regs = ugeth->ug_regs;
2040         struct phy_device *phydev = ugeth->phydev;
2041
2042         ugeth_vdbg("%s: IN", __func__);
2043
2044         /* Disable the controller */
2045         ugeth_disable(ugeth, COMM_DIR_RX_AND_TX);
2046
2047         /* Tell the kernel the link is down */
2048         phy_stop(phydev);
2049
2050         /* Mask all interrupts */
2051         out_be32(ugeth->uccf->p_uccm, 0x00000000);
2052
2053         /* Clear all interrupts */
2054         out_be32(ugeth->uccf->p_ucce, 0xffffffff);
2055
2056         /* Disable Rx and Tx */
2057         clrbits32(&ug_regs->maccfg1, MACCFG1_ENABLE_RX | MACCFG1_ENABLE_TX);
2058
2059         phy_disconnect(ugeth->phydev);
2060         ugeth->phydev = NULL;
2061
2062         ucc_geth_memclean(ugeth);
2063 }
2064
2065 static int ucc_struct_init(struct ucc_geth_private *ugeth)
2066 {
2067         struct ucc_geth_info *ug_info;
2068         struct ucc_fast_info *uf_info;
2069         int i;
2070
2071         ug_info = ugeth->ug_info;
2072         uf_info = &ug_info->uf_info;
2073
2074         if (!((uf_info->bd_mem_part == MEM_PART_SYSTEM) ||
2075               (uf_info->bd_mem_part == MEM_PART_MURAM))) {
2076                 if (netif_msg_probe(ugeth))
2077                         ugeth_err("%s: Bad memory partition value.",
2078                                         __func__);
2079                 return -EINVAL;
2080         }
2081
2082         /* Rx BD lengths */
2083         for (i = 0; i < ug_info->numQueuesRx; i++) {
2084                 if ((ug_info->bdRingLenRx[i] < UCC_GETH_RX_BD_RING_SIZE_MIN) ||
2085                     (ug_info->bdRingLenRx[i] %
2086                      UCC_GETH_RX_BD_RING_SIZE_ALIGNMENT)) {
2087                         if (netif_msg_probe(ugeth))
2088                                 ugeth_err
2089                                     ("%s: Rx BD ring length must be multiple of 4, no smaller than 8.",
2090                                         __func__);
2091                         return -EINVAL;
2092                 }
2093         }
2094
2095         /* Tx BD lengths */
2096         for (i = 0; i < ug_info->numQueuesTx; i++) {
2097                 if (ug_info->bdRingLenTx[i] < UCC_GETH_TX_BD_RING_SIZE_MIN) {
2098                         if (netif_msg_probe(ugeth))
2099                                 ugeth_err
2100                                     ("%s: Tx BD ring length must be no smaller than 2.",
2101                                      __func__);
2102                         return -EINVAL;
2103                 }
2104         }
2105
2106         /* mrblr */
2107         if ((uf_info->max_rx_buf_length == 0) ||
2108             (uf_info->max_rx_buf_length % UCC_GETH_MRBLR_ALIGNMENT)) {
2109                 if (netif_msg_probe(ugeth))
2110                         ugeth_err
2111                             ("%s: max_rx_buf_length must be non-zero multiple of 128.",
2112                              __func__);
2113                 return -EINVAL;
2114         }
2115
2116         /* num Tx queues */
2117         if (ug_info->numQueuesTx > NUM_TX_QUEUES) {
2118                 if (netif_msg_probe(ugeth))
2119                         ugeth_err("%s: number of tx queues too large.", __func__);
2120                 return -EINVAL;
2121         }
2122
2123         /* num Rx queues */
2124         if (ug_info->numQueuesRx > NUM_RX_QUEUES) {
2125                 if (netif_msg_probe(ugeth))
2126                         ugeth_err("%s: number of rx queues too large.", __func__);
2127                 return -EINVAL;
2128         }
2129
2130         /* l2qt */
2131         for (i = 0; i < UCC_GETH_VLAN_PRIORITY_MAX; i++) {
2132                 if (ug_info->l2qt[i] >= ug_info->numQueuesRx) {
2133                         if (netif_msg_probe(ugeth))
2134                                 ugeth_err
2135                                     ("%s: VLAN priority table entry must not be"
2136                                         " larger than number of Rx queues.",
2137                                      __func__);
2138                         return -EINVAL;
2139                 }
2140         }
2141
2142         /* l3qt */
2143         for (i = 0; i < UCC_GETH_IP_PRIORITY_MAX; i++) {
2144                 if (ug_info->l3qt[i] >= ug_info->numQueuesRx) {
2145                         if (netif_msg_probe(ugeth))
2146                                 ugeth_err
2147                                     ("%s: IP priority table entry must not be"
2148                                         " larger than number of Rx queues.",
2149                                      __func__);
2150                         return -EINVAL;
2151                 }
2152         }
2153
2154         if (ug_info->cam && !ug_info->ecamptr) {
2155                 if (netif_msg_probe(ugeth))
2156                         ugeth_err("%s: If cam mode is chosen, must supply cam ptr.",
2157                                   __func__);
2158                 return -EINVAL;
2159         }
2160
2161         if ((ug_info->numStationAddresses !=
2162              UCC_GETH_NUM_OF_STATION_ADDRESSES_1)
2163             && ug_info->rxExtendedFiltering) {
2164                 if (netif_msg_probe(ugeth))
2165                         ugeth_err("%s: Number of station addresses greater than 1 "
2166                                   "not allowed in extended parsing mode.",
2167                                   __func__);
2168                 return -EINVAL;
2169         }
2170
2171         /* Generate uccm_mask for receive */
2172         uf_info->uccm_mask = ug_info->eventRegMask & UCCE_OTHER;/* Errors */
2173         for (i = 0; i < ug_info->numQueuesRx; i++)
2174                 uf_info->uccm_mask |= (UCC_GETH_UCCE_RXF0 << i);
2175
2176         for (i = 0; i < ug_info->numQueuesTx; i++)
2177                 uf_info->uccm_mask |= (UCC_GETH_UCCE_TXB0 << i);
2178         /* Initialize the general fast UCC block. */
2179         if (ucc_fast_init(uf_info, &ugeth->uccf)) {
2180                 if (netif_msg_probe(ugeth))
2181                         ugeth_err("%s: Failed to init uccf.", __func__);
2182                 return -ENOMEM;
2183         }
2184
2185         /* read the number of risc engines, update the riscTx and riscRx
2186          * if there are 4 riscs in QE
2187          */
2188         if (qe_get_num_of_risc() == 4) {
2189                 ug_info->riscTx = QE_RISC_ALLOCATION_FOUR_RISCS;
2190                 ug_info->riscRx = QE_RISC_ALLOCATION_FOUR_RISCS;
2191         }
2192
2193         ugeth->ug_regs = ioremap(uf_info->regs, sizeof(*ugeth->ug_regs));
2194         if (!ugeth->ug_regs) {
2195                 if (netif_msg_probe(ugeth))
2196                         ugeth_err("%s: Failed to ioremap regs.", __func__);
2197                 return -ENOMEM;
2198         }
2199
2200         skb_queue_head_init(&ugeth->rx_recycle);
2201
2202         return 0;
2203 }
2204
2205 static int ucc_geth_startup(struct ucc_geth_private *ugeth)
2206 {
2207         struct ucc_geth_82xx_address_filtering_pram __iomem *p_82xx_addr_filt;
2208         struct ucc_geth_init_pram __iomem *p_init_enet_pram;
2209         struct ucc_fast_private *uccf;
2210         struct ucc_geth_info *ug_info;
2211         struct ucc_fast_info *uf_info;
2212         struct ucc_fast __iomem *uf_regs;
2213         struct ucc_geth __iomem *ug_regs;
2214         int ret_val = -EINVAL;
2215         u32 remoder = UCC_GETH_REMODER_INIT;
2216         u32 init_enet_pram_offset, cecr_subblock, command;
2217         u32 ifstat, i, j, size, l2qt, l3qt, length;
2218         u16 temoder = UCC_GETH_TEMODER_INIT;
2219         u16 test;
2220         u8 function_code = 0;
2221         u8 __iomem *bd;
2222         u8 __iomem *endOfRing;
2223         u8 numThreadsRxNumerical, numThreadsTxNumerical;
2224
2225         ugeth_vdbg("%s: IN", __func__);
2226         uccf = ugeth->uccf;
2227         ug_info = ugeth->ug_info;
2228         uf_info = &ug_info->uf_info;
2229         uf_regs = uccf->uf_regs;
2230         ug_regs = ugeth->ug_regs;
2231
2232         switch (ug_info->numThreadsRx) {
2233         case UCC_GETH_NUM_OF_THREADS_1:
2234                 numThreadsRxNumerical = 1;
2235                 break;
2236         case UCC_GETH_NUM_OF_THREADS_2:
2237                 numThreadsRxNumerical = 2;
2238                 break;
2239         case UCC_GETH_NUM_OF_THREADS_4:
2240                 numThreadsRxNumerical = 4;
2241                 break;
2242         case UCC_GETH_NUM_OF_THREADS_6:
2243                 numThreadsRxNumerical = 6;
2244                 break;
2245         case UCC_GETH_NUM_OF_THREADS_8:
2246                 numThreadsRxNumerical = 8;
2247                 break;
2248         default:
2249                 if (netif_msg_ifup(ugeth))
2250                         ugeth_err("%s: Bad number of Rx threads value.",
2251                                         __func__);
2252                 return -EINVAL;
2253                 break;
2254         }
2255
2256         switch (ug_info->numThreadsTx) {
2257         case UCC_GETH_NUM_OF_THREADS_1:
2258                 numThreadsTxNumerical = 1;
2259                 break;
2260         case UCC_GETH_NUM_OF_THREADS_2:
2261                 numThreadsTxNumerical = 2;
2262                 break;
2263         case UCC_GETH_NUM_OF_THREADS_4:
2264                 numThreadsTxNumerical = 4;
2265                 break;
2266         case UCC_GETH_NUM_OF_THREADS_6:
2267                 numThreadsTxNumerical = 6;
2268                 break;
2269         case UCC_GETH_NUM_OF_THREADS_8:
2270                 numThreadsTxNumerical = 8;
2271                 break;
2272         default:
2273                 if (netif_msg_ifup(ugeth))
2274                         ugeth_err("%s: Bad number of Tx threads value.",
2275                                         __func__);
2276                 return -EINVAL;
2277                 break;
2278         }
2279
2280         /* Calculate rx_extended_features */
2281         ugeth->rx_non_dynamic_extended_features = ug_info->ipCheckSumCheck ||
2282             ug_info->ipAddressAlignment ||
2283             (ug_info->numStationAddresses !=
2284              UCC_GETH_NUM_OF_STATION_ADDRESSES_1);
2285
2286         ugeth->rx_extended_features = ugeth->rx_non_dynamic_extended_features ||
2287             (ug_info->vlanOperationTagged != UCC_GETH_VLAN_OPERATION_TAGGED_NOP)
2288             || (ug_info->vlanOperationNonTagged !=
2289                 UCC_GETH_VLAN_OPERATION_NON_TAGGED_NOP);
2290
2291         init_default_reg_vals(&uf_regs->upsmr,
2292                               &ug_regs->maccfg1, &ug_regs->maccfg2);
2293
2294         /*                    Set UPSMR                      */
2295         /* For more details see the hardware spec.           */
2296         init_rx_parameters(ug_info->bro,
2297                            ug_info->rsh, ug_info->pro, &uf_regs->upsmr);
2298
2299         /* We're going to ignore other registers for now, */
2300         /* except as needed to get up and running         */
2301
2302         /*                    Set MACCFG1                    */
2303         /* For more details see the hardware spec.           */
2304         init_flow_control_params(ug_info->aufc,
2305                                  ug_info->receiveFlowControl,
2306                                  ug_info->transmitFlowControl,
2307                                  ug_info->pausePeriod,
2308                                  ug_info->extensionField,
2309                                  &uf_regs->upsmr,
2310                                  &ug_regs->uempr, &ug_regs->maccfg1);
2311
2312         setbits32(&ug_regs->maccfg1, MACCFG1_ENABLE_RX | MACCFG1_ENABLE_TX);
2313
2314         /*                    Set IPGIFG                     */
2315         /* For more details see the hardware spec.           */
2316         ret_val = init_inter_frame_gap_params(ug_info->nonBackToBackIfgPart1,
2317                                               ug_info->nonBackToBackIfgPart2,
2318                                               ug_info->
2319                                               miminumInterFrameGapEnforcement,
2320                                               ug_info->backToBackInterFrameGap,
2321                                               &ug_regs->ipgifg);
2322         if (ret_val != 0) {
2323                 if (netif_msg_ifup(ugeth))
2324                         ugeth_err("%s: IPGIFG initialization parameter too large.",
2325                                   __func__);
2326                 return ret_val;
2327         }
2328
2329         /*                    Set HAFDUP                     */
2330         /* For more details see the hardware spec.           */
2331         ret_val = init_half_duplex_params(ug_info->altBeb,
2332                                           ug_info->backPressureNoBackoff,
2333                                           ug_info->noBackoff,
2334                                           ug_info->excessDefer,
2335                                           ug_info->altBebTruncation,
2336                                           ug_info->maxRetransmission,
2337                                           ug_info->collisionWindow,
2338                                           &ug_regs->hafdup);
2339         if (ret_val != 0) {
2340                 if (netif_msg_ifup(ugeth))
2341                         ugeth_err("%s: Half Duplex initialization parameter too large.",
2342                           __func__);
2343                 return ret_val;
2344         }
2345
2346         /*                    Set IFSTAT                     */
2347         /* For more details see the hardware spec.           */
2348         /* Read only - resets upon read                      */
2349         ifstat = in_be32(&ug_regs->ifstat);
2350
2351         /*                    Clear UEMPR                    */
2352         /* For more details see the hardware spec.           */
2353         out_be32(&ug_regs->uempr, 0);
2354
2355         /*                    Set UESCR                      */
2356         /* For more details see the hardware spec.           */
2357         init_hw_statistics_gathering_mode((ug_info->statisticsMode &
2358                                 UCC_GETH_STATISTICS_GATHERING_MODE_HARDWARE),
2359                                 0, &uf_regs->upsmr, &ug_regs->uescr);
2360
2361         /* Allocate Tx bds */
2362         for (j = 0; j < ug_info->numQueuesTx; j++) {
2363                 /* Allocate in multiple of
2364                    UCC_GETH_TX_BD_RING_SIZE_MEMORY_ALIGNMENT,
2365                    according to spec */
2366                 length = ((ug_info->bdRingLenTx[j] * sizeof(struct qe_bd))
2367                           / UCC_GETH_TX_BD_RING_SIZE_MEMORY_ALIGNMENT)
2368                     * UCC_GETH_TX_BD_RING_SIZE_MEMORY_ALIGNMENT;
2369                 if ((ug_info->bdRingLenTx[j] * sizeof(struct qe_bd)) %
2370                     UCC_GETH_TX_BD_RING_SIZE_MEMORY_ALIGNMENT)
2371                         length += UCC_GETH_TX_BD_RING_SIZE_MEMORY_ALIGNMENT;
2372                 if (uf_info->bd_mem_part == MEM_PART_SYSTEM) {
2373                         u32 align = 4;
2374                         if (UCC_GETH_TX_BD_RING_ALIGNMENT > 4)
2375                                 align = UCC_GETH_TX_BD_RING_ALIGNMENT;
2376                         ugeth->tx_bd_ring_offset[j] =
2377                                 (u32) kmalloc((u32) (length + align), GFP_KERNEL);
2378
2379                         if (ugeth->tx_bd_ring_offset[j] != 0)
2380                                 ugeth->p_tx_bd_ring[j] =
2381                                         (u8 __iomem *)((ugeth->tx_bd_ring_offset[j] +
2382                                         align) & ~(align - 1));
2383                 } else if (uf_info->bd_mem_part == MEM_PART_MURAM) {
2384                         ugeth->tx_bd_ring_offset[j] =
2385                             qe_muram_alloc(length,
2386                                            UCC_GETH_TX_BD_RING_ALIGNMENT);
2387                         if (!IS_ERR_VALUE(ugeth->tx_bd_ring_offset[j]))
2388                                 ugeth->p_tx_bd_ring[j] =
2389                                     (u8 __iomem *) qe_muram_addr(ugeth->
2390                                                          tx_bd_ring_offset[j]);
2391                 }
2392                 if (!ugeth->p_tx_bd_ring[j]) {
2393                         if (netif_msg_ifup(ugeth))
2394                                 ugeth_err
2395                                     ("%s: Can not allocate memory for Tx bd rings.",
2396                                      __func__);
2397                         return -ENOMEM;
2398                 }
2399                 /* Zero unused end of bd ring, according to spec */
2400                 memset_io((void __iomem *)(ugeth->p_tx_bd_ring[j] +
2401                        ug_info->bdRingLenTx[j] * sizeof(struct qe_bd)), 0,
2402                        length - ug_info->bdRingLenTx[j] * sizeof(struct qe_bd));
2403         }
2404
2405         /* Allocate Rx bds */
2406         for (j = 0; j < ug_info->numQueuesRx; j++) {
2407                 length = ug_info->bdRingLenRx[j] * sizeof(struct qe_bd);
2408                 if (uf_info->bd_mem_part == MEM_PART_SYSTEM) {
2409                         u32 align = 4;
2410                         if (UCC_GETH_RX_BD_RING_ALIGNMENT > 4)
2411                                 align = UCC_GETH_RX_BD_RING_ALIGNMENT;
2412                         ugeth->rx_bd_ring_offset[j] =
2413                                 (u32) kmalloc((u32) (length + align), GFP_KERNEL);
2414                         if (ugeth->rx_bd_ring_offset[j] != 0)
2415                                 ugeth->p_rx_bd_ring[j] =
2416                                         (u8 __iomem *)((ugeth->rx_bd_ring_offset[j] +
2417                                         align) & ~(align - 1));
2418                 } else if (uf_info->bd_mem_part == MEM_PART_MURAM) {
2419                         ugeth->rx_bd_ring_offset[j] =
2420                             qe_muram_alloc(length,
2421                                            UCC_GETH_RX_BD_RING_ALIGNMENT);
2422                         if (!IS_ERR_VALUE(ugeth->rx_bd_ring_offset[j]))
2423                                 ugeth->p_rx_bd_ring[j] =
2424                                     (u8 __iomem *) qe_muram_addr(ugeth->
2425                                                          rx_bd_ring_offset[j]);
2426                 }
2427                 if (!ugeth->p_rx_bd_ring[j]) {
2428                         if (netif_msg_ifup(ugeth))
2429                                 ugeth_err
2430                                     ("%s: Can not allocate memory for Rx bd rings.",
2431                                      __func__);
2432                         return -ENOMEM;
2433                 }
2434         }
2435
2436         /* Init Tx bds */
2437         for (j = 0; j < ug_info->numQueuesTx; j++) {
2438                 /* Setup the skbuff rings */
2439                 ugeth->tx_skbuff[j] = kmalloc(sizeof(struct sk_buff *) *
2440                                               ugeth->ug_info->bdRingLenTx[j],
2441                                               GFP_KERNEL);
2442
2443                 if (ugeth->tx_skbuff[j] == NULL) {
2444                         if (netif_msg_ifup(ugeth))
2445                                 ugeth_err("%s: Could not allocate tx_skbuff",
2446                                           __func__);
2447                         return -ENOMEM;
2448                 }
2449
2450                 for (i = 0; i < ugeth->ug_info->bdRingLenTx[j]; i++)
2451                         ugeth->tx_skbuff[j][i] = NULL;
2452
2453                 ugeth->skb_curtx[j] = ugeth->skb_dirtytx[j] = 0;
2454                 bd = ugeth->confBd[j] = ugeth->txBd[j] = ugeth->p_tx_bd_ring[j];
2455                 for (i = 0; i < ug_info->bdRingLenTx[j]; i++) {
2456                         /* clear bd buffer */
2457                         out_be32(&((struct qe_bd __iomem *)bd)->buf, 0);
2458                         /* set bd status and length */
2459                         out_be32((u32 __iomem *)bd, 0);
2460                         bd += sizeof(struct qe_bd);
2461                 }
2462                 bd -= sizeof(struct qe_bd);
2463                 /* set bd status and length */
2464                 out_be32((u32 __iomem *)bd, T_W); /* for last BD set Wrap bit */
2465         }
2466
2467         /* Init Rx bds */
2468         for (j = 0; j < ug_info->numQueuesRx; j++) {
2469                 /* Setup the skbuff rings */
2470                 ugeth->rx_skbuff[j] = kmalloc(sizeof(struct sk_buff *) *
2471                                               ugeth->ug_info->bdRingLenRx[j],
2472                                               GFP_KERNEL);
2473
2474                 if (ugeth->rx_skbuff[j] == NULL) {
2475                         if (netif_msg_ifup(ugeth))
2476                                 ugeth_err("%s: Could not allocate rx_skbuff",
2477                                           __func__);
2478                         return -ENOMEM;
2479                 }
2480
2481                 for (i = 0; i < ugeth->ug_info->bdRingLenRx[j]; i++)
2482                         ugeth->rx_skbuff[j][i] = NULL;
2483
2484                 ugeth->skb_currx[j] = 0;
2485                 bd = ugeth->rxBd[j] = ugeth->p_rx_bd_ring[j];
2486                 for (i = 0; i < ug_info->bdRingLenRx[j]; i++) {
2487                         /* set bd status and length */
2488                         out_be32((u32 __iomem *)bd, R_I);
2489                         /* clear bd buffer */
2490                         out_be32(&((struct qe_bd __iomem *)bd)->buf, 0);
2491                         bd += sizeof(struct qe_bd);
2492                 }
2493                 bd -= sizeof(struct qe_bd);
2494                 /* set bd status and length */
2495                 out_be32((u32 __iomem *)bd, R_W); /* for last BD set Wrap bit */
2496         }
2497
2498         /*
2499          * Global PRAM
2500          */
2501         /* Tx global PRAM */
2502         /* Allocate global tx parameter RAM page */
2503         ugeth->tx_glbl_pram_offset =
2504             qe_muram_alloc(sizeof(struct ucc_geth_tx_global_pram),
2505                            UCC_GETH_TX_GLOBAL_PRAM_ALIGNMENT);
2506         if (IS_ERR_VALUE(ugeth->tx_glbl_pram_offset)) {
2507                 if (netif_msg_ifup(ugeth))
2508                         ugeth_err
2509                             ("%s: Can not allocate DPRAM memory for p_tx_glbl_pram.",
2510                              __func__);
2511                 return -ENOMEM;
2512         }
2513         ugeth->p_tx_glbl_pram =
2514             (struct ucc_geth_tx_global_pram __iomem *) qe_muram_addr(ugeth->
2515                                                         tx_glbl_pram_offset);
2516         /* Zero out p_tx_glbl_pram */
2517         memset_io((void __iomem *)ugeth->p_tx_glbl_pram, 0, sizeof(struct ucc_geth_tx_global_pram));
2518
2519         /* Fill global PRAM */
2520
2521         /* TQPTR */
2522         /* Size varies with number of Tx threads */
2523         ugeth->thread_dat_tx_offset =
2524             qe_muram_alloc(numThreadsTxNumerical *
2525                            sizeof(struct ucc_geth_thread_data_tx) +
2526                            32 * (numThreadsTxNumerical == 1),
2527                            UCC_GETH_THREAD_DATA_ALIGNMENT);
2528         if (IS_ERR_VALUE(ugeth->thread_dat_tx_offset)) {
2529                 if (netif_msg_ifup(ugeth))
2530                         ugeth_err
2531                             ("%s: Can not allocate DPRAM memory for p_thread_data_tx.",
2532                              __func__);
2533                 return -ENOMEM;
2534         }
2535
2536         ugeth->p_thread_data_tx =
2537             (struct ucc_geth_thread_data_tx __iomem *) qe_muram_addr(ugeth->
2538                                                         thread_dat_tx_offset);
2539         out_be32(&ugeth->p_tx_glbl_pram->tqptr, ugeth->thread_dat_tx_offset);
2540
2541         /* vtagtable */
2542         for (i = 0; i < UCC_GETH_TX_VTAG_TABLE_ENTRY_MAX; i++)
2543                 out_be32(&ugeth->p_tx_glbl_pram->vtagtable[i],
2544                          ug_info->vtagtable[i]);
2545
2546         /* iphoffset */
2547         for (i = 0; i < TX_IP_OFFSET_ENTRY_MAX; i++)
2548                 out_8(&ugeth->p_tx_glbl_pram->iphoffset[i],
2549                                 ug_info->iphoffset[i]);
2550
2551         /* SQPTR */
2552         /* Size varies with number of Tx queues */
2553         ugeth->send_q_mem_reg_offset =
2554             qe_muram_alloc(ug_info->numQueuesTx *
2555                            sizeof(struct ucc_geth_send_queue_qd),
2556                            UCC_GETH_SEND_QUEUE_QUEUE_DESCRIPTOR_ALIGNMENT);
2557         if (IS_ERR_VALUE(ugeth->send_q_mem_reg_offset)) {
2558                 if (netif_msg_ifup(ugeth))
2559                         ugeth_err
2560                             ("%s: Can not allocate DPRAM memory for p_send_q_mem_reg.",
2561                              __func__);
2562                 return -ENOMEM;
2563         }
2564
2565         ugeth->p_send_q_mem_reg =
2566             (struct ucc_geth_send_queue_mem_region __iomem *) qe_muram_addr(ugeth->
2567                         send_q_mem_reg_offset);
2568         out_be32(&ugeth->p_tx_glbl_pram->sqptr, ugeth->send_q_mem_reg_offset);
2569
2570         /* Setup the table */
2571         /* Assume BD rings are already established */
2572         for (i = 0; i < ug_info->numQueuesTx; i++) {
2573                 endOfRing =
2574                     ugeth->p_tx_bd_ring[i] + (ug_info->bdRingLenTx[i] -
2575                                               1) * sizeof(struct qe_bd);
2576                 if (ugeth->ug_info->uf_info.bd_mem_part == MEM_PART_SYSTEM) {
2577                         out_be32(&ugeth->p_send_q_mem_reg->sqqd[i].bd_ring_base,
2578                                  (u32) virt_to_phys(ugeth->p_tx_bd_ring[i]));
2579                         out_be32(&ugeth->p_send_q_mem_reg->sqqd[i].
2580                                  last_bd_completed_address,
2581                                  (u32) virt_to_phys(endOfRing));
2582                 } else if (ugeth->ug_info->uf_info.bd_mem_part ==
2583                            MEM_PART_MURAM) {
2584                         out_be32(&ugeth->p_send_q_mem_reg->sqqd[i].bd_ring_base,
2585                                  (u32) immrbar_virt_to_phys(ugeth->
2586                                                             p_tx_bd_ring[i]));
2587                         out_be32(&ugeth->p_send_q_mem_reg->sqqd[i].
2588                                  last_bd_completed_address,
2589                                  (u32) immrbar_virt_to_phys(endOfRing));
2590                 }
2591         }
2592
2593         /* schedulerbasepointer */
2594
2595         if (ug_info->numQueuesTx > 1) {
2596         /* scheduler exists only if more than 1 tx queue */
2597                 ugeth->scheduler_offset =
2598                     qe_muram_alloc(sizeof(struct ucc_geth_scheduler),
2599                                    UCC_GETH_SCHEDULER_ALIGNMENT);
2600                 if (IS_ERR_VALUE(ugeth->scheduler_offset)) {
2601                         if (netif_msg_ifup(ugeth))
2602                                 ugeth_err
2603                                  ("%s: Can not allocate DPRAM memory for p_scheduler.",
2604                                      __func__);
2605                         return -ENOMEM;
2606                 }
2607
2608                 ugeth->p_scheduler =
2609                     (struct ucc_geth_scheduler __iomem *) qe_muram_addr(ugeth->
2610                                                            scheduler_offset);
2611                 out_be32(&ugeth->p_tx_glbl_pram->schedulerbasepointer,
2612                          ugeth->scheduler_offset);
2613                 /* Zero out p_scheduler */
2614                 memset_io((void __iomem *)ugeth->p_scheduler, 0, sizeof(struct ucc_geth_scheduler));
2615
2616                 /* Set values in scheduler */
2617                 out_be32(&ugeth->p_scheduler->mblinterval,
2618                          ug_info->mblinterval);
2619                 out_be16(&ugeth->p_scheduler->nortsrbytetime,
2620                          ug_info->nortsrbytetime);
2621                 out_8(&ugeth->p_scheduler->fracsiz, ug_info->fracsiz);
2622                 out_8(&ugeth->p_scheduler->strictpriorityq,
2623                                 ug_info->strictpriorityq);
2624                 out_8(&ugeth->p_scheduler->txasap, ug_info->txasap);
2625                 out_8(&ugeth->p_scheduler->extrabw, ug_info->extrabw);
2626                 for (i = 0; i < NUM_TX_QUEUES; i++)
2627                         out_8(&ugeth->p_scheduler->weightfactor[i],
2628                             ug_info->weightfactor[i]);
2629
2630                 /* Set pointers to cpucount registers in scheduler */
2631                 ugeth->p_cpucount[0] = &(ugeth->p_scheduler->cpucount0);
2632                 ugeth->p_cpucount[1] = &(ugeth->p_scheduler->cpucount1);
2633                 ugeth->p_cpucount[2] = &(ugeth->p_scheduler->cpucount2);
2634                 ugeth->p_cpucount[3] = &(ugeth->p_scheduler->cpucount3);
2635                 ugeth->p_cpucount[4] = &(ugeth->p_scheduler->cpucount4);
2636                 ugeth->p_cpucount[5] = &(ugeth->p_scheduler->cpucount5);
2637                 ugeth->p_cpucount[6] = &(ugeth->p_scheduler->cpucount6);
2638                 ugeth->p_cpucount[7] = &(ugeth->p_scheduler->cpucount7);
2639         }
2640
2641         /* schedulerbasepointer */
2642         /* TxRMON_PTR (statistics) */
2643         if (ug_info->
2644             statisticsMode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_TX) {
2645                 ugeth->tx_fw_statistics_pram_offset =
2646                     qe_muram_alloc(sizeof
2647                                    (struct ucc_geth_tx_firmware_statistics_pram),
2648                                    UCC_GETH_TX_STATISTICS_ALIGNMENT);
2649                 if (IS_ERR_VALUE(ugeth->tx_fw_statistics_pram_offset)) {
2650                         if (netif_msg_ifup(ugeth))
2651                                 ugeth_err
2652                                     ("%s: Can not allocate DPRAM memory for"
2653                                         " p_tx_fw_statistics_pram.",
2654                                         __func__);
2655                         return -ENOMEM;
2656                 }
2657                 ugeth->p_tx_fw_statistics_pram =
2658                     (struct ucc_geth_tx_firmware_statistics_pram __iomem *)
2659                     qe_muram_addr(ugeth->tx_fw_statistics_pram_offset);
2660                 /* Zero out p_tx_fw_statistics_pram */
2661                 memset_io((void __iomem *)ugeth->p_tx_fw_statistics_pram,
2662                        0, sizeof(struct ucc_geth_tx_firmware_statistics_pram));
2663         }
2664
2665         /* temoder */
2666         /* Already has speed set */
2667
2668         if (ug_info->numQueuesTx > 1)
2669                 temoder |= TEMODER_SCHEDULER_ENABLE;
2670         if (ug_info->ipCheckSumGenerate)
2671                 temoder |= TEMODER_IP_CHECKSUM_GENERATE;
2672         temoder |= ((ug_info->numQueuesTx - 1) << TEMODER_NUM_OF_QUEUES_SHIFT);
2673         out_be16(&ugeth->p_tx_glbl_pram->temoder, temoder);
2674
2675         test = in_be16(&ugeth->p_tx_glbl_pram->temoder);
2676
2677         /* Function code register value to be used later */
2678         function_code = UCC_BMR_BO_BE | UCC_BMR_GBL;
2679         /* Required for QE */
2680
2681         /* function code register */
2682         out_be32(&ugeth->p_tx_glbl_pram->tstate, ((u32) function_code) << 24);
2683
2684         /* Rx global PRAM */
2685         /* Allocate global rx parameter RAM page */
2686         ugeth->rx_glbl_pram_offset =
2687             qe_muram_alloc(sizeof(struct ucc_geth_rx_global_pram),
2688                            UCC_GETH_RX_GLOBAL_PRAM_ALIGNMENT);
2689         if (IS_ERR_VALUE(ugeth->rx_glbl_pram_offset)) {
2690                 if (netif_msg_ifup(ugeth))
2691                         ugeth_err
2692                             ("%s: Can not allocate DPRAM memory for p_rx_glbl_pram.",
2693                              __func__);
2694                 return -ENOMEM;
2695         }
2696         ugeth->p_rx_glbl_pram =
2697             (struct ucc_geth_rx_global_pram __iomem *) qe_muram_addr(ugeth->
2698                                                         rx_glbl_pram_offset);
2699         /* Zero out p_rx_glbl_pram */
2700         memset_io((void __iomem *)ugeth->p_rx_glbl_pram, 0, sizeof(struct ucc_geth_rx_global_pram));
2701
2702         /* Fill global PRAM */
2703
2704         /* RQPTR */
2705         /* Size varies with number of Rx threads */
2706         ugeth->thread_dat_rx_offset =
2707             qe_muram_alloc(numThreadsRxNumerical *
2708                            sizeof(struct ucc_geth_thread_data_rx),
2709                            UCC_GETH_THREAD_DATA_ALIGNMENT);
2710         if (IS_ERR_VALUE(ugeth->thread_dat_rx_offset)) {
2711                 if (netif_msg_ifup(ugeth))
2712                         ugeth_err
2713                             ("%s: Can not allocate DPRAM memory for p_thread_data_rx.",
2714                              __func__);
2715                 return -ENOMEM;
2716         }
2717
2718         ugeth->p_thread_data_rx =
2719             (struct ucc_geth_thread_data_rx __iomem *) qe_muram_addr(ugeth->
2720                                                         thread_dat_rx_offset);
2721         out_be32(&ugeth->p_rx_glbl_pram->rqptr, ugeth->thread_dat_rx_offset);
2722
2723         /* typeorlen */
2724         out_be16(&ugeth->p_rx_glbl_pram->typeorlen, ug_info->typeorlen);
2725
2726         /* rxrmonbaseptr (statistics) */
2727         if (ug_info->
2728             statisticsMode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_RX) {
2729                 ugeth->rx_fw_statistics_pram_offset =
2730                     qe_muram_alloc(sizeof
2731                                    (struct ucc_geth_rx_firmware_statistics_pram),
2732                                    UCC_GETH_RX_STATISTICS_ALIGNMENT);
2733                 if (IS_ERR_VALUE(ugeth->rx_fw_statistics_pram_offset)) {
2734                         if (netif_msg_ifup(ugeth))
2735                                 ugeth_err
2736                                         ("%s: Can not allocate DPRAM memory for"
2737                                         " p_rx_fw_statistics_pram.", __func__);
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                         ugeth_err
2758                             ("%s: Can not allocate DPRAM memory for"
2759                                 " p_rx_irq_coalescing_tbl.", __func__);
2760                 return -ENOMEM;
2761         }
2762
2763         ugeth->p_rx_irq_coalescing_tbl =
2764             (struct ucc_geth_rx_interrupt_coalescing_table __iomem *)
2765             qe_muram_addr(ugeth->rx_irq_coalescing_tbl_offset);
2766         out_be32(&ugeth->p_rx_glbl_pram->intcoalescingptr,
2767                  ugeth->rx_irq_coalescing_tbl_offset);
2768
2769         /* Fill interrupt coalescing table */
2770         for (i = 0; i < ug_info->numQueuesRx; i++) {
2771                 out_be32(&ugeth->p_rx_irq_coalescing_tbl->coalescingentry[i].
2772                          interruptcoalescingmaxvalue,
2773                          ug_info->interruptcoalescingmaxvalue[i]);
2774                 out_be32(&ugeth->p_rx_irq_coalescing_tbl->coalescingentry[i].
2775                          interruptcoalescingcounter,
2776                          ug_info->interruptcoalescingmaxvalue[i]);
2777         }
2778
2779         /* MRBLR */
2780         init_max_rx_buff_len(uf_info->max_rx_buf_length,
2781                              &ugeth->p_rx_glbl_pram->mrblr);
2782         /* MFLR */
2783         out_be16(&ugeth->p_rx_glbl_pram->mflr, ug_info->maxFrameLength);
2784         /* MINFLR */
2785         init_min_frame_len(ug_info->minFrameLength,
2786                            &ugeth->p_rx_glbl_pram->minflr,
2787                            &ugeth->p_rx_glbl_pram->mrblr);
2788         /* MAXD1 */
2789         out_be16(&ugeth->p_rx_glbl_pram->maxd1, ug_info->maxD1Length);
2790         /* MAXD2 */
2791         out_be16(&ugeth->p_rx_glbl_pram->maxd2, ug_info->maxD2Length);
2792
2793         /* l2qt */
2794         l2qt = 0;
2795         for (i = 0; i < UCC_GETH_VLAN_PRIORITY_MAX; i++)
2796                 l2qt |= (ug_info->l2qt[i] << (28 - 4 * i));
2797         out_be32(&ugeth->p_rx_glbl_pram->l2qt, l2qt);
2798
2799         /* l3qt */
2800         for (j = 0; j < UCC_GETH_IP_PRIORITY_MAX; j += 8) {
2801                 l3qt = 0;
2802                 for (i = 0; i < 8; i++)
2803                         l3qt |= (ug_info->l3qt[j + i] << (28 - 4 * i));
2804                 out_be32(&ugeth->p_rx_glbl_pram->l3qt[j/8], l3qt);
2805         }
2806
2807         /* vlantype */
2808         out_be16(&ugeth->p_rx_glbl_pram->vlantype, ug_info->vlantype);
2809
2810         /* vlantci */
2811         out_be16(&ugeth->p_rx_glbl_pram->vlantci, ug_info->vlantci);
2812
2813         /* ecamptr */
2814         out_be32(&ugeth->p_rx_glbl_pram->ecamptr, ug_info->ecamptr);
2815
2816         /* RBDQPTR */
2817         /* Size varies with number of Rx queues */
2818         ugeth->rx_bd_qs_tbl_offset =
2819             qe_muram_alloc(ug_info->numQueuesRx *
2820                            (sizeof(struct ucc_geth_rx_bd_queues_entry) +
2821                             sizeof(struct ucc_geth_rx_prefetched_bds)),
2822                            UCC_GETH_RX_BD_QUEUES_ALIGNMENT);
2823         if (IS_ERR_VALUE(ugeth->rx_bd_qs_tbl_offset)) {
2824                 if (netif_msg_ifup(ugeth))
2825                         ugeth_err
2826                             ("%s: Can not allocate DPRAM memory for p_rx_bd_qs_tbl.",
2827                              __func__);
2828                 return -ENOMEM;
2829         }
2830
2831         ugeth->p_rx_bd_qs_tbl =
2832             (struct ucc_geth_rx_bd_queues_entry __iomem *) qe_muram_addr(ugeth->
2833                                     rx_bd_qs_tbl_offset);
2834         out_be32(&ugeth->p_rx_glbl_pram->rbdqptr, ugeth->rx_bd_qs_tbl_offset);
2835         /* Zero out p_rx_bd_qs_tbl */
2836         memset_io((void __iomem *)ugeth->p_rx_bd_qs_tbl,
2837                0,
2838                ug_info->numQueuesRx * (sizeof(struct ucc_geth_rx_bd_queues_entry) +
2839                                        sizeof(struct ucc_geth_rx_prefetched_bds)));
2840
2841         /* Setup the table */
2842         /* Assume BD rings are already established */
2843         for (i = 0; i < ug_info->numQueuesRx; i++) {
2844                 if (ugeth->ug_info->uf_info.bd_mem_part == MEM_PART_SYSTEM) {
2845                         out_be32(&ugeth->p_rx_bd_qs_tbl[i].externalbdbaseptr,
2846                                  (u32) virt_to_phys(ugeth->p_rx_bd_ring[i]));
2847                 } else if (ugeth->ug_info->uf_info.bd_mem_part ==
2848                            MEM_PART_MURAM) {
2849                         out_be32(&ugeth->p_rx_bd_qs_tbl[i].externalbdbaseptr,
2850                                  (u32) immrbar_virt_to_phys(ugeth->
2851                                                             p_rx_bd_ring[i]));
2852                 }
2853                 /* rest of fields handled by QE */
2854         }
2855
2856         /* remoder */
2857         /* Already has speed set */
2858
2859         if (ugeth->rx_extended_features)
2860                 remoder |= REMODER_RX_EXTENDED_FEATURES;
2861         if (ug_info->rxExtendedFiltering)
2862                 remoder |= REMODER_RX_EXTENDED_FILTERING;
2863         if (ug_info->dynamicMaxFrameLength)
2864                 remoder |= REMODER_DYNAMIC_MAX_FRAME_LENGTH;
2865         if (ug_info->dynamicMinFrameLength)
2866                 remoder |= REMODER_DYNAMIC_MIN_FRAME_LENGTH;
2867         remoder |=
2868             ug_info->vlanOperationTagged << REMODER_VLAN_OPERATION_TAGGED_SHIFT;
2869         remoder |=
2870             ug_info->
2871             vlanOperationNonTagged << REMODER_VLAN_OPERATION_NON_TAGGED_SHIFT;
2872         remoder |= ug_info->rxQoSMode << REMODER_RX_QOS_MODE_SHIFT;
2873         remoder |= ((ug_info->numQueuesRx - 1) << REMODER_NUM_OF_QUEUES_SHIFT);
2874         if (ug_info->ipCheckSumCheck)
2875                 remoder |= REMODER_IP_CHECKSUM_CHECK;
2876         if (ug_info->ipAddressAlignment)
2877                 remoder |= REMODER_IP_ADDRESS_ALIGNMENT;
2878         out_be32(&ugeth->p_rx_glbl_pram->remoder, remoder);
2879
2880         /* Note that this function must be called */
2881         /* ONLY AFTER p_tx_fw_statistics_pram */
2882         /* andp_UccGethRxFirmwareStatisticsPram are allocated ! */
2883         init_firmware_statistics_gathering_mode((ug_info->
2884                 statisticsMode &
2885                 UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_TX),
2886                 (ug_info->statisticsMode &
2887                 UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_RX),
2888                 &ugeth->p_tx_glbl_pram->txrmonbaseptr,
2889                 ugeth->tx_fw_statistics_pram_offset,
2890                 &ugeth->p_rx_glbl_pram->rxrmonbaseptr,
2891                 ugeth->rx_fw_statistics_pram_offset,
2892                 &ugeth->p_tx_glbl_pram->temoder,
2893                 &ugeth->p_rx_glbl_pram->remoder);
2894
2895         /* function code register */
2896         out_8(&ugeth->p_rx_glbl_pram->rstate, function_code);
2897
2898         /* initialize extended filtering */
2899         if (ug_info->rxExtendedFiltering) {
2900                 if (!ug_info->extendedFilteringChainPointer) {
2901                         if (netif_msg_ifup(ugeth))
2902                                 ugeth_err("%s: Null Extended Filtering Chain Pointer.",
2903                                           __func__);
2904                         return -EINVAL;
2905                 }
2906
2907                 /* Allocate memory for extended filtering Mode Global
2908                 Parameters */
2909                 ugeth->exf_glbl_param_offset =
2910                     qe_muram_alloc(sizeof(struct ucc_geth_exf_global_pram),
2911                 UCC_GETH_RX_EXTENDED_FILTERING_GLOBAL_PARAMETERS_ALIGNMENT);
2912                 if (IS_ERR_VALUE(ugeth->exf_glbl_param_offset)) {
2913                         if (netif_msg_ifup(ugeth))
2914                                 ugeth_err
2915                                         ("%s: Can not allocate DPRAM memory for"
2916                                         " p_exf_glbl_param.", __func__);
2917                         return -ENOMEM;
2918                 }
2919
2920                 ugeth->p_exf_glbl_param =
2921                     (struct ucc_geth_exf_global_pram __iomem *) qe_muram_addr(ugeth->
2922                                  exf_glbl_param_offset);
2923                 out_be32(&ugeth->p_rx_glbl_pram->exfGlobalParam,
2924                          ugeth->exf_glbl_param_offset);
2925                 out_be32(&ugeth->p_exf_glbl_param->l2pcdptr,
2926                          (u32) ug_info->extendedFilteringChainPointer);
2927
2928         } else {                /* initialize 82xx style address filtering */
2929
2930                 /* Init individual address recognition registers to disabled */
2931
2932                 for (j = 0; j < NUM_OF_PADDRS; j++)
2933                         ugeth_82xx_filtering_clear_addr_in_paddr(ugeth, (u8) j);
2934
2935                 p_82xx_addr_filt =
2936                     (struct ucc_geth_82xx_address_filtering_pram __iomem *) ugeth->
2937                     p_rx_glbl_pram->addressfiltering;
2938
2939                 ugeth_82xx_filtering_clear_all_addr_in_hash(ugeth,
2940                         ENET_ADDR_TYPE_GROUP);
2941                 ugeth_82xx_filtering_clear_all_addr_in_hash(ugeth,
2942                         ENET_ADDR_TYPE_INDIVIDUAL);
2943         }
2944
2945         /*
2946          * Initialize UCC at QE level
2947          */
2948
2949         command = QE_INIT_TX_RX;
2950
2951         /* Allocate shadow InitEnet command parameter structure.
2952          * This is needed because after the InitEnet command is executed,
2953          * the structure in DPRAM is released, because DPRAM is a premium
2954          * resource.
2955          * This shadow structure keeps a copy of what was done so that the
2956          * allocated resources can be released when the channel is freed.
2957          */
2958         if (!(ugeth->p_init_enet_param_shadow =
2959               kmalloc(sizeof(struct ucc_geth_init_pram), GFP_KERNEL))) {
2960                 if (netif_msg_ifup(ugeth))
2961                         ugeth_err
2962                             ("%s: Can not allocate memory for"
2963                                 " p_UccInitEnetParamShadows.", __func__);
2964                 return -ENOMEM;
2965         }
2966         /* Zero out *p_init_enet_param_shadow */
2967         memset((char *)ugeth->p_init_enet_param_shadow,
2968                0, sizeof(struct ucc_geth_init_pram));
2969
2970         /* Fill shadow InitEnet command parameter structure */
2971
2972         ugeth->p_init_enet_param_shadow->resinit1 =
2973             ENET_INIT_PARAM_MAGIC_RES_INIT1;
2974         ugeth->p_init_enet_param_shadow->resinit2 =
2975             ENET_INIT_PARAM_MAGIC_RES_INIT2;
2976         ugeth->p_init_enet_param_shadow->resinit3 =
2977             ENET_INIT_PARAM_MAGIC_RES_INIT3;
2978         ugeth->p_init_enet_param_shadow->resinit4 =
2979             ENET_INIT_PARAM_MAGIC_RES_INIT4;
2980         ugeth->p_init_enet_param_shadow->resinit5 =
2981             ENET_INIT_PARAM_MAGIC_RES_INIT5;
2982         ugeth->p_init_enet_param_shadow->rgftgfrxglobal |=
2983             ((u32) ug_info->numThreadsRx) << ENET_INIT_PARAM_RGF_SHIFT;
2984         ugeth->p_init_enet_param_shadow->rgftgfrxglobal |=
2985             ((u32) ug_info->numThreadsTx) << ENET_INIT_PARAM_TGF_SHIFT;
2986
2987         ugeth->p_init_enet_param_shadow->rgftgfrxglobal |=
2988             ugeth->rx_glbl_pram_offset | ug_info->riscRx;
2989         if ((ug_info->largestexternallookupkeysize !=
2990              QE_FLTR_LARGEST_EXTERNAL_TABLE_LOOKUP_KEY_SIZE_NONE)
2991             && (ug_info->largestexternallookupkeysize !=
2992                 QE_FLTR_LARGEST_EXTERNAL_TABLE_LOOKUP_KEY_SIZE_8_BYTES)
2993             && (ug_info->largestexternallookupkeysize !=
2994                 QE_FLTR_LARGEST_EXTERNAL_TABLE_LOOKUP_KEY_SIZE_16_BYTES)) {
2995                 if (netif_msg_ifup(ugeth))
2996                         ugeth_err("%s: Invalid largest External Lookup Key Size.",
2997                                   __func__);
2998                 return -EINVAL;
2999         }
3000         ugeth->p_init_enet_param_shadow->largestexternallookupkeysize =
3001             ug_info->largestexternallookupkeysize;
3002         size = sizeof(struct ucc_geth_thread_rx_pram);
3003         if (ug_info->rxExtendedFiltering) {
3004                 size += THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING;
3005                 if (ug_info->largestexternallookupkeysize ==
3006                     QE_FLTR_TABLE_LOOKUP_KEY_SIZE_8_BYTES)
3007                         size +=
3008                             THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING_8;
3009                 if (ug_info->largestexternallookupkeysize ==
3010                     QE_FLTR_TABLE_LOOKUP_KEY_SIZE_16_BYTES)
3011                         size +=
3012                             THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING_16;
3013         }
3014
3015         if ((ret_val = fill_init_enet_entries(ugeth, &(ugeth->
3016                 p_init_enet_param_shadow->rxthread[0]),
3017                 (u8) (numThreadsRxNumerical + 1)
3018                 /* Rx needs one extra for terminator */
3019                 , size, UCC_GETH_THREAD_RX_PRAM_ALIGNMENT,
3020                 ug_info->riscRx, 1)) != 0) {
3021                 if (netif_msg_ifup(ugeth))
3022                                 ugeth_err("%s: Can not fill p_init_enet_param_shadow.",
3023                                         __func__);
3024                 return ret_val;
3025         }
3026
3027         ugeth->p_init_enet_param_shadow->txglobal =
3028             ugeth->tx_glbl_pram_offset | ug_info->riscTx;
3029         if ((ret_val =
3030              fill_init_enet_entries(ugeth,
3031                                     &(ugeth->p_init_enet_param_shadow->
3032                                       txthread[0]), numThreadsTxNumerical,
3033                                     sizeof(struct ucc_geth_thread_tx_pram),
3034                                     UCC_GETH_THREAD_TX_PRAM_ALIGNMENT,
3035                                     ug_info->riscTx, 0)) != 0) {
3036                 if (netif_msg_ifup(ugeth))
3037                         ugeth_err("%s: Can not fill p_init_enet_param_shadow.",
3038                                   __func__);
3039                 return ret_val;
3040         }
3041
3042         /* Load Rx bds with buffers */
3043         for (i = 0; i < ug_info->numQueuesRx; i++) {
3044                 if ((ret_val = rx_bd_buffer_set(ugeth, (u8) i)) != 0) {
3045                         if (netif_msg_ifup(ugeth))
3046                                 ugeth_err("%s: Can not fill Rx bds with buffers.",
3047                                           __func__);
3048                         return ret_val;
3049                 }
3050         }
3051
3052         /* Allocate InitEnet command parameter structure */
3053         init_enet_pram_offset = qe_muram_alloc(sizeof(struct ucc_geth_init_pram), 4);
3054         if (IS_ERR_VALUE(init_enet_pram_offset)) {
3055                 if (netif_msg_ifup(ugeth))
3056                         ugeth_err
3057                             ("%s: Can not allocate DPRAM memory for p_init_enet_pram.",
3058                              __func__);
3059                 return -ENOMEM;
3060         }
3061         p_init_enet_pram =
3062             (struct ucc_geth_init_pram __iomem *) qe_muram_addr(init_enet_pram_offset);
3063
3064         /* Copy shadow InitEnet command parameter structure into PRAM */
3065         out_8(&p_init_enet_pram->resinit1,
3066                         ugeth->p_init_enet_param_shadow->resinit1);
3067         out_8(&p_init_enet_pram->resinit2,
3068                         ugeth->p_init_enet_param_shadow->resinit2);
3069         out_8(&p_init_enet_pram->resinit3,
3070                         ugeth->p_init_enet_param_shadow->resinit3);
3071         out_8(&p_init_enet_pram->resinit4,
3072                         ugeth->p_init_enet_param_shadow->resinit4);
3073         out_be16(&p_init_enet_pram->resinit5,
3074                  ugeth->p_init_enet_param_shadow->resinit5);
3075         out_8(&p_init_enet_pram->largestexternallookupkeysize,
3076             ugeth->p_init_enet_param_shadow->largestexternallookupkeysize);
3077         out_be32(&p_init_enet_pram->rgftgfrxglobal,
3078                  ugeth->p_init_enet_param_shadow->rgftgfrxglobal);
3079         for (i = 0; i < ENET_INIT_PARAM_MAX_ENTRIES_RX; i++)
3080                 out_be32(&p_init_enet_pram->rxthread[i],
3081                          ugeth->p_init_enet_param_shadow->rxthread[i]);
3082         out_be32(&p_init_enet_pram->txglobal,
3083                  ugeth->p_init_enet_param_shadow->txglobal);
3084         for (i = 0; i < ENET_INIT_PARAM_MAX_ENTRIES_TX; i++)
3085                 out_be32(&p_init_enet_pram->txthread[i],
3086                          ugeth->p_init_enet_param_shadow->txthread[i]);
3087
3088         /* Issue QE command */
3089         cecr_subblock =
3090             ucc_fast_get_qe_cr_subblock(ugeth->ug_info->uf_info.ucc_num);
3091         qe_issue_cmd(command, cecr_subblock, QE_CR_PROTOCOL_ETHERNET,
3092                      init_enet_pram_offset);
3093
3094         /* Free InitEnet command parameter */
3095         qe_muram_free(init_enet_pram_offset);
3096
3097         return 0;
3098 }
3099
3100 /* This is called by the kernel when a frame is ready for transmission. */
3101 /* It is pointed to by the dev->hard_start_xmit function pointer */
3102 static int ucc_geth_start_xmit(struct sk_buff *skb, struct net_device *dev)
3103 {
3104         struct ucc_geth_private *ugeth = netdev_priv(dev);
3105 #ifdef CONFIG_UGETH_TX_ON_DEMAND
3106         struct ucc_fast_private *uccf;
3107 #endif
3108         u8 __iomem *bd;                 /* BD pointer */
3109         u32 bd_status;
3110         u8 txQ = 0;
3111         unsigned long flags;
3112
3113         ugeth_vdbg("%s: IN", __func__);
3114
3115         spin_lock_irqsave(&ugeth->lock, flags);
3116
3117         dev->stats.tx_bytes += skb->len;
3118
3119         /* Start from the next BD that should be filled */
3120         bd = ugeth->txBd[txQ];
3121         bd_status = in_be32((u32 __iomem *)bd);
3122         /* Save the skb pointer so we can free it later */
3123         ugeth->tx_skbuff[txQ][ugeth->skb_curtx[txQ]] = skb;
3124
3125         /* Update the current skb pointer (wrapping if this was the last) */
3126         ugeth->skb_curtx[txQ] =
3127             (ugeth->skb_curtx[txQ] +
3128              1) & TX_RING_MOD_MASK(ugeth->ug_info->bdRingLenTx[txQ]);
3129
3130         /* set up the buffer descriptor */
3131         out_be32(&((struct qe_bd __iomem *)bd)->buf,
3132                       dma_map_single(ugeth->dev, skb->data,
3133                               skb->len, DMA_TO_DEVICE));
3134
3135         /* printk(KERN_DEBUG"skb->data is 0x%x\n",skb->data); */
3136
3137         bd_status = (bd_status & T_W) | T_R | T_I | T_L | skb->len;
3138
3139         /* set bd status and length */
3140         out_be32((u32 __iomem *)bd, bd_status);
3141
3142         dev->trans_start = jiffies;
3143
3144         /* Move to next BD in the ring */
3145         if (!(bd_status & T_W))
3146                 bd += sizeof(struct qe_bd);
3147         else
3148                 bd = ugeth->p_tx_bd_ring[txQ];
3149
3150         /* If the next BD still needs to be cleaned up, then the bds
3151            are full.  We need to tell the kernel to stop sending us stuff. */
3152         if (bd == ugeth->confBd[txQ]) {
3153                 if (!netif_queue_stopped(dev))
3154                         netif_stop_queue(dev);
3155         }
3156
3157         ugeth->txBd[txQ] = bd;
3158
3159         if (ugeth->p_scheduler) {
3160                 ugeth->cpucount[txQ]++;
3161                 /* Indicate to QE that there are more Tx bds ready for
3162                 transmission */
3163                 /* This is done by writing a running counter of the bd
3164                 count to the scheduler PRAM. */
3165                 out_be16(ugeth->p_cpucount[txQ], ugeth->cpucount[txQ]);
3166         }
3167
3168 #ifdef CONFIG_UGETH_TX_ON_DEMAND
3169         uccf = ugeth->uccf;
3170         out_be16(uccf->p_utodr, UCC_FAST_TOD);
3171 #endif
3172         spin_unlock_irqrestore(&ugeth->lock, flags);
3173
3174         return NETDEV_TX_OK;
3175 }
3176
3177 static int ucc_geth_rx(struct ucc_geth_private *ugeth, u8 rxQ, int rx_work_limit)
3178 {
3179         struct sk_buff *skb;
3180         u8 __iomem *bd;
3181         u16 length, howmany = 0;
3182         u32 bd_status;
3183         u8 *bdBuffer;
3184         struct net_device *dev;
3185
3186         ugeth_vdbg("%s: IN", __func__);
3187
3188         dev = ugeth->ndev;
3189
3190         /* collect received buffers */
3191         bd = ugeth->rxBd[rxQ];
3192
3193         bd_status = in_be32((u32 __iomem *)bd);
3194
3195         /* while there are received buffers and BD is full (~R_E) */
3196         while (!((bd_status & (R_E)) || (--rx_work_limit < 0))) {
3197                 bdBuffer = (u8 *) in_be32(&((struct qe_bd __iomem *)bd)->buf);
3198                 length = (u16) ((bd_status & BD_LENGTH_MASK) - 4);
3199                 skb = ugeth->rx_skbuff[rxQ][ugeth->skb_currx[rxQ]];
3200
3201                 /* determine whether buffer is first, last, first and last
3202                 (single buffer frame) or middle (not first and not last) */
3203                 if (!skb ||
3204                     (!(bd_status & (R_F | R_L))) ||
3205                     (bd_status & R_ERRORS_FATAL)) {
3206                         if (netif_msg_rx_err(ugeth))
3207                                 ugeth_err("%s, %d: ERROR!!! skb - 0x%08x",
3208                                            __func__, __LINE__, (u32) skb);
3209                         if (skb) {
3210                                 skb->data = skb->head + NET_SKB_PAD;
3211                                 __skb_queue_head(&ugeth->rx_recycle, skb);
3212                         }
3213
3214                         ugeth->rx_skbuff[rxQ][ugeth->skb_currx[rxQ]] = NULL;
3215                         dev->stats.rx_dropped++;
3216                 } else {
3217                         dev->stats.rx_packets++;
3218                         howmany++;
3219
3220                         /* Prep the skb for the packet */
3221                         skb_put(skb, length);
3222
3223                         /* Tell the skb what kind of packet this is */
3224                         skb->protocol = eth_type_trans(skb, ugeth->ndev);
3225
3226                         dev->stats.rx_bytes += length;
3227                         /* Send the packet up the stack */
3228                         netif_receive_skb(skb);
3229                 }
3230
3231                 skb = get_new_skb(ugeth, bd);
3232                 if (!skb) {
3233                         if (netif_msg_rx_err(ugeth))
3234                                 ugeth_warn("%s: No Rx Data Buffer", __func__);
3235                         dev->stats.rx_dropped++;
3236                         break;
3237                 }
3238
3239                 ugeth->rx_skbuff[rxQ][ugeth->skb_currx[rxQ]] = skb;
3240
3241                 /* update to point at the next skb */
3242                 ugeth->skb_currx[rxQ] =
3243                     (ugeth->skb_currx[rxQ] +
3244                      1) & RX_RING_MOD_MASK(ugeth->ug_info->bdRingLenRx[rxQ]);
3245
3246                 if (bd_status & R_W)
3247                         bd = ugeth->p_rx_bd_ring[rxQ];
3248                 else
3249                         bd += sizeof(struct qe_bd);
3250
3251                 bd_status = in_be32((u32 __iomem *)bd);
3252         }
3253
3254         ugeth->rxBd[rxQ] = bd;
3255         return howmany;
3256 }
3257
3258 static int ucc_geth_tx(struct net_device *dev, u8 txQ)
3259 {
3260         /* Start from the next BD that should be filled */
3261         struct ucc_geth_private *ugeth = netdev_priv(dev);
3262         u8 __iomem *bd;         /* BD pointer */
3263         u32 bd_status;
3264
3265         bd = ugeth->confBd[txQ];
3266         bd_status = in_be32((u32 __iomem *)bd);
3267
3268         /* Normal processing. */
3269         while ((bd_status & T_R) == 0) {
3270                 struct sk_buff *skb;
3271
3272                 /* BD contains already transmitted buffer.   */
3273                 /* Handle the transmitted buffer and release */
3274                 /* the BD to be used with the current frame  */
3275
3276                 if ((bd == ugeth->txBd[txQ]) && (netif_queue_stopped(dev) == 0))
3277                         break;
3278
3279                 dev->stats.tx_packets++;
3280
3281                 skb = ugeth->tx_skbuff[txQ][ugeth->skb_dirtytx[txQ]];
3282
3283                 if (skb_queue_len(&ugeth->rx_recycle) < RX_BD_RING_LEN &&
3284                              skb_recycle_check(skb,
3285                                     ugeth->ug_info->uf_info.max_rx_buf_length +
3286                                     UCC_GETH_RX_DATA_BUF_ALIGNMENT))
3287                         __skb_queue_head(&ugeth->rx_recycle, skb);
3288                 else
3289                         dev_kfree_skb(skb);
3290
3291                 ugeth->tx_skbuff[txQ][ugeth->skb_dirtytx[txQ]] = NULL;
3292                 ugeth->skb_dirtytx[txQ] =
3293                     (ugeth->skb_dirtytx[txQ] +
3294                      1) & TX_RING_MOD_MASK(ugeth->ug_info->bdRingLenTx[txQ]);
3295
3296                 /* We freed a buffer, so now we can restart transmission */
3297                 if (netif_queue_stopped(dev))
3298                         netif_wake_queue(dev);
3299
3300                 /* Advance the confirmation BD pointer */
3301                 if (!(bd_status & T_W))
3302                         bd += sizeof(struct qe_bd);
3303                 else
3304                         bd = ugeth->p_tx_bd_ring[txQ];
3305                 bd_status = in_be32((u32 __iomem *)bd);
3306         }
3307         ugeth->confBd[txQ] = bd;
3308         return 0;
3309 }
3310
3311 static int ucc_geth_poll(struct napi_struct *napi, int budget)
3312 {
3313         struct ucc_geth_private *ugeth = container_of(napi, struct ucc_geth_private, napi);
3314         struct ucc_geth_info *ug_info;
3315         int howmany, i;
3316
3317         ug_info = ugeth->ug_info;
3318
3319         /* Tx event processing */
3320         spin_lock(&ugeth->lock);
3321         for (i = 0; i < ug_info->numQueuesTx; i++)
3322                 ucc_geth_tx(ugeth->ndev, i);
3323         spin_unlock(&ugeth->lock);
3324
3325         howmany = 0;
3326         for (i = 0; i < ug_info->numQueuesRx; i++)
3327                 howmany += ucc_geth_rx(ugeth, i, budget - howmany);
3328
3329         if (howmany < budget) {
3330                 napi_complete(napi);
3331                 setbits32(ugeth->uccf->p_uccm, UCCE_RX_EVENTS | UCCE_TX_EVENTS);
3332         }
3333
3334         return howmany;
3335 }
3336
3337 static irqreturn_t ucc_geth_irq_handler(int irq, void *info)
3338 {
3339         struct net_device *dev = info;
3340         struct ucc_geth_private *ugeth = netdev_priv(dev);
3341         struct ucc_fast_private *uccf;
3342         struct ucc_geth_info *ug_info;
3343         register u32 ucce;
3344         register u32 uccm;
3345
3346         ugeth_vdbg("%s: IN", __func__);
3347
3348         uccf = ugeth->uccf;
3349         ug_info = ugeth->ug_info;
3350
3351         /* read and clear events */
3352         ucce = (u32) in_be32(uccf->p_ucce);
3353         uccm = (u32) in_be32(uccf->p_uccm);
3354         ucce &= uccm;
3355         out_be32(uccf->p_ucce, ucce);
3356
3357         /* check for receive events that require processing */
3358         if (ucce & (UCCE_RX_EVENTS | UCCE_TX_EVENTS)) {
3359                 if (napi_schedule_prep(&ugeth->napi)) {
3360                         uccm &= ~(UCCE_RX_EVENTS | UCCE_TX_EVENTS);
3361                         out_be32(uccf->p_uccm, uccm);
3362                         __napi_schedule(&ugeth->napi);
3363                 }
3364         }
3365
3366         /* Errors and other events */
3367         if (ucce & UCCE_OTHER) {
3368                 if (ucce & UCC_GETH_UCCE_BSY)
3369                         dev->stats.rx_errors++;
3370                 if (ucce & UCC_GETH_UCCE_TXE)
3371                         dev->stats.tx_errors++;
3372         }
3373
3374         return IRQ_HANDLED;
3375 }
3376
3377 #ifdef CONFIG_NET_POLL_CONTROLLER
3378 /*
3379  * Polling 'interrupt' - used by things like netconsole to send skbs
3380  * without having to re-enable interrupts. It's not called while
3381  * the interrupt routine is executing.
3382  */
3383 static void ucc_netpoll(struct net_device *dev)
3384 {
3385         struct ucc_geth_private *ugeth = netdev_priv(dev);
3386         int irq = ugeth->ug_info->uf_info.irq;
3387
3388         disable_irq(irq);
3389         ucc_geth_irq_handler(irq, dev);
3390         enable_irq(irq);
3391 }
3392 #endif /* CONFIG_NET_POLL_CONTROLLER */
3393
3394 static int ucc_geth_set_mac_addr(struct net_device *dev, void *p)
3395 {
3396         struct ucc_geth_private *ugeth = netdev_priv(dev);
3397         struct sockaddr *addr = p;
3398
3399         if (!is_valid_ether_addr(addr->sa_data))
3400                 return -EADDRNOTAVAIL;
3401
3402         memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
3403
3404         /*
3405          * If device is not running, we will set mac addr register
3406          * when opening the device.
3407          */
3408         if (!netif_running(dev))
3409                 return 0;
3410
3411         spin_lock_irq(&ugeth->lock);
3412         init_mac_station_addr_regs(dev->dev_addr[0],
3413                                    dev->dev_addr[1],
3414                                    dev->dev_addr[2],
3415                                    dev->dev_addr[3],
3416                                    dev->dev_addr[4],
3417                                    dev->dev_addr[5],
3418                                    &ugeth->ug_regs->macstnaddr1,
3419                                    &ugeth->ug_regs->macstnaddr2);
3420         spin_unlock_irq(&ugeth->lock);
3421
3422         return 0;
3423 }
3424
3425 static int ucc_geth_init_mac(struct ucc_geth_private *ugeth)
3426 {
3427         struct net_device *dev = ugeth->ndev;
3428         int err;
3429
3430         err = ucc_struct_init(ugeth);
3431         if (err) {
3432                 if (netif_msg_ifup(ugeth))
3433                         ugeth_err("%s: Cannot configure internal struct, "
3434                                   "aborting.", dev->name);
3435                 goto err;
3436         }
3437
3438         err = ucc_geth_startup(ugeth);
3439         if (err) {
3440                 if (netif_msg_ifup(ugeth))
3441                         ugeth_err("%s: Cannot configure net device, aborting.",
3442                                   dev->name);
3443                 goto err;
3444         }
3445
3446         err = adjust_enet_interface(ugeth);
3447         if (err) {
3448                 if (netif_msg_ifup(ugeth))
3449                         ugeth_err("%s: Cannot configure net device, aborting.",
3450                                   dev->name);
3451                 goto err;
3452         }
3453
3454         /*       Set MACSTNADDR1, MACSTNADDR2                */
3455         /* For more details see the hardware spec.           */
3456         init_mac_station_addr_regs(dev->dev_addr[0],
3457                                    dev->dev_addr[1],
3458                                    dev->dev_addr[2],
3459                                    dev->dev_addr[3],
3460                                    dev->dev_addr[4],
3461                                    dev->dev_addr[5],
3462                                    &ugeth->ug_regs->macstnaddr1,
3463                                    &ugeth->ug_regs->macstnaddr2);
3464
3465         err = ugeth_enable(ugeth, COMM_DIR_RX_AND_TX);
3466         if (err) {
3467                 if (netif_msg_ifup(ugeth))
3468                         ugeth_err("%s: Cannot enable net device, aborting.", dev->name);
3469                 goto err;
3470         }
3471
3472         return 0;
3473 err:
3474         ucc_geth_stop(ugeth);
3475         return err;
3476 }
3477
3478 /* Called when something needs to use the ethernet device */
3479 /* Returns 0 for success. */
3480 static int ucc_geth_open(struct net_device *dev)
3481 {
3482         struct ucc_geth_private *ugeth = netdev_priv(dev);
3483         int err;
3484
3485         ugeth_vdbg("%s: IN", __func__);
3486
3487         /* Test station address */
3488         if (dev->dev_addr[0] & ENET_GROUP_ADDR) {
3489                 if (netif_msg_ifup(ugeth))
3490                         ugeth_err("%s: Multicast address used for station "
3491                                   "address - is this what you wanted?",
3492                                   __func__);
3493                 return -EINVAL;
3494         }
3495
3496         err = init_phy(dev);
3497         if (err) {
3498                 if (netif_msg_ifup(ugeth))
3499                         ugeth_err("%s: Cannot initialize PHY, aborting.",
3500                                   dev->name);
3501                 return err;
3502         }
3503
3504         err = ucc_geth_init_mac(ugeth);
3505         if (err) {
3506                 if (netif_msg_ifup(ugeth))
3507                         ugeth_err("%s: Cannot initialize MAC, aborting.",
3508                                   dev->name);
3509                 goto err;
3510         }
3511
3512         err = request_irq(ugeth->ug_info->uf_info.irq, ucc_geth_irq_handler,
3513                           0, "UCC Geth", dev);
3514         if (err) {
3515                 if (netif_msg_ifup(ugeth))
3516                         ugeth_err("%s: Cannot get IRQ for net device, aborting.",
3517                                   dev->name);
3518                 goto err;
3519         }
3520
3521         phy_start(ugeth->phydev);
3522         napi_enable(&ugeth->napi);
3523         netif_start_queue(dev);
3524
3525         device_set_wakeup_capable(&dev->dev,
3526                         qe_alive_during_sleep() || ugeth->phydev->irq);
3527         device_set_wakeup_enable(&dev->dev, ugeth->wol_en);
3528
3529         return err;
3530
3531 err:
3532         ucc_geth_stop(ugeth);
3533         return err;
3534 }
3535
3536 /* Stops the kernel queue, and halts the controller */
3537 static int ucc_geth_close(struct net_device *dev)
3538 {
3539         struct ucc_geth_private *ugeth = netdev_priv(dev);
3540
3541         ugeth_vdbg("%s: IN", __func__);
3542
3543         napi_disable(&ugeth->napi);
3544
3545         ucc_geth_stop(ugeth);
3546
3547         free_irq(ugeth->ug_info->uf_info.irq, ugeth->ndev);
3548
3549         netif_stop_queue(dev);
3550
3551         return 0;
3552 }
3553
3554 /* Reopen device. This will reset the MAC and PHY. */
3555 static void ucc_geth_timeout_work(struct work_struct *work)
3556 {
3557         struct ucc_geth_private *ugeth;
3558         struct net_device *dev;
3559
3560         ugeth = container_of(work, struct ucc_geth_private, timeout_work);
3561         dev = ugeth->ndev;
3562
3563         ugeth_vdbg("%s: IN", __func__);
3564
3565         dev->stats.tx_errors++;
3566
3567         ugeth_dump_regs(ugeth);
3568
3569         if (dev->flags & IFF_UP) {
3570                 /*
3571                  * Must reset MAC *and* PHY. This is done by reopening
3572                  * the device.
3573                  */
3574                 ucc_geth_close(dev);
3575                 ucc_geth_open(dev);
3576         }
3577
3578         netif_tx_schedule_all(dev);
3579 }
3580
3581 /*
3582  * ucc_geth_timeout gets called when a packet has not been
3583  * transmitted after a set amount of time.
3584  */
3585 static void ucc_geth_timeout(struct net_device *dev)
3586 {
3587         struct ucc_geth_private *ugeth = netdev_priv(dev);
3588
3589         netif_carrier_off(dev);
3590         schedule_work(&ugeth->timeout_work);
3591 }
3592
3593
3594 #ifdef CONFIG_PM
3595
3596 static int ucc_geth_suspend(struct of_device *ofdev, pm_message_t state)
3597 {
3598         struct net_device *ndev = dev_get_drvdata(&ofdev->dev);
3599         struct ucc_geth_private *ugeth = netdev_priv(ndev);
3600
3601         if (!netif_running(ndev))
3602                 return 0;
3603
3604         napi_disable(&ugeth->napi);
3605
3606         /*
3607          * Disable the controller, otherwise we'll wakeup on any network
3608          * activity.
3609          */
3610         ugeth_disable(ugeth, COMM_DIR_RX_AND_TX);
3611
3612         if (ugeth->wol_en & WAKE_MAGIC) {
3613                 setbits32(ugeth->uccf->p_uccm, UCC_GETH_UCCE_MPD);
3614                 setbits32(&ugeth->ug_regs->maccfg2, MACCFG2_MPE);
3615                 ucc_fast_enable(ugeth->uccf, COMM_DIR_RX_AND_TX);
3616         } else if (!(ugeth->wol_en & WAKE_PHY)) {
3617                 phy_stop(ugeth->phydev);
3618         }
3619
3620         return 0;
3621 }
3622
3623 static int ucc_geth_resume(struct of_device *ofdev)
3624 {
3625         struct net_device *ndev = dev_get_drvdata(&ofdev->dev);
3626         struct ucc_geth_private *ugeth = netdev_priv(ndev);
3627         int err;
3628
3629         if (!netif_running(ndev))
3630                 return 0;
3631
3632         if (qe_alive_during_sleep()) {
3633                 if (ugeth->wol_en & WAKE_MAGIC) {
3634                         ucc_fast_disable(ugeth->uccf, COMM_DIR_RX_AND_TX);
3635                         clrbits32(&ugeth->ug_regs->maccfg2, MACCFG2_MPE);
3636                         clrbits32(ugeth->uccf->p_uccm, UCC_GETH_UCCE_MPD);
3637                 }
3638                 ugeth_enable(ugeth, COMM_DIR_RX_AND_TX);
3639         } else {
3640                 /*
3641                  * Full reinitialization is required if QE shuts down
3642                  * during sleep.
3643                  */
3644                 ucc_geth_memclean(ugeth);
3645
3646                 err = ucc_geth_init_mac(ugeth);
3647                 if (err) {
3648                         ugeth_err("%s: Cannot initialize MAC, aborting.",
3649                                   ndev->name);
3650                         return err;
3651                 }
3652         }
3653
3654         ugeth->oldlink = 0;
3655         ugeth->oldspeed = 0;
3656         ugeth->oldduplex = -1;
3657
3658         phy_stop(ugeth->phydev);
3659         phy_start(ugeth->phydev);
3660
3661         napi_enable(&ugeth->napi);
3662         netif_start_queue(ndev);
3663
3664         return 0;
3665 }
3666
3667 #else
3668 #define ucc_geth_suspend NULL
3669 #define ucc_geth_resume NULL
3670 #endif
3671
3672 static phy_interface_t to_phy_interface(const char *phy_connection_type)
3673 {
3674         if (strcasecmp(phy_connection_type, "mii") == 0)
3675                 return PHY_INTERFACE_MODE_MII;
3676         if (strcasecmp(phy_connection_type, "gmii") == 0)
3677                 return PHY_INTERFACE_MODE_GMII;
3678         if (strcasecmp(phy_connection_type, "tbi") == 0)
3679                 return PHY_INTERFACE_MODE_TBI;
3680         if (strcasecmp(phy_connection_type, "rmii") == 0)
3681                 return PHY_INTERFACE_MODE_RMII;
3682         if (strcasecmp(phy_connection_type, "rgmii") == 0)
3683                 return PHY_INTERFACE_MODE_RGMII;
3684         if (strcasecmp(phy_connection_type, "rgmii-id") == 0)
3685                 return PHY_INTERFACE_MODE_RGMII_ID;
3686         if (strcasecmp(phy_connection_type, "rgmii-txid") == 0)
3687                 return PHY_INTERFACE_MODE_RGMII_TXID;
3688         if (strcasecmp(phy_connection_type, "rgmii-rxid") == 0)
3689                 return PHY_INTERFACE_MODE_RGMII_RXID;
3690         if (strcasecmp(phy_connection_type, "rtbi") == 0)
3691                 return PHY_INTERFACE_MODE_RTBI;
3692         if (strcasecmp(phy_connection_type, "sgmii") == 0)
3693                 return PHY_INTERFACE_MODE_SGMII;
3694
3695         return PHY_INTERFACE_MODE_MII;
3696 }
3697
3698 static const struct net_device_ops ucc_geth_netdev_ops = {
3699         .ndo_open               = ucc_geth_open,
3700         .ndo_stop               = ucc_geth_close,
3701         .ndo_start_xmit         = ucc_geth_start_xmit,
3702         .ndo_validate_addr      = eth_validate_addr,
3703         .ndo_set_mac_address    = ucc_geth_set_mac_addr,
3704         .ndo_change_mtu         = eth_change_mtu,
3705         .ndo_set_multicast_list = ucc_geth_set_multi,
3706         .ndo_tx_timeout         = ucc_geth_timeout,
3707 #ifdef CONFIG_NET_POLL_CONTROLLER
3708         .ndo_poll_controller    = ucc_netpoll,
3709 #endif
3710 };
3711
3712 static int ucc_geth_probe(struct of_device* ofdev, const struct of_device_id *match)
3713 {
3714         struct device *device = &ofdev->dev;
3715         struct device_node *np = ofdev->node;
3716         struct net_device *dev = NULL;
3717         struct ucc_geth_private *ugeth = NULL;
3718         struct ucc_geth_info *ug_info;
3719         struct resource res;
3720         int err, ucc_num, max_speed = 0;
3721         const unsigned int *prop;
3722         const char *sprop;
3723         const void *mac_addr;
3724         phy_interface_t phy_interface;
3725         static const int enet_to_speed[] = {
3726                 SPEED_10, SPEED_10, SPEED_10,
3727                 SPEED_100, SPEED_100, SPEED_100,
3728                 SPEED_1000, SPEED_1000, SPEED_1000, SPEED_1000,
3729         };
3730         static const phy_interface_t enet_to_phy_interface[] = {
3731                 PHY_INTERFACE_MODE_MII, PHY_INTERFACE_MODE_RMII,
3732                 PHY_INTERFACE_MODE_RGMII, PHY_INTERFACE_MODE_MII,
3733                 PHY_INTERFACE_MODE_RMII, PHY_INTERFACE_MODE_RGMII,
3734                 PHY_INTERFACE_MODE_GMII, PHY_INTERFACE_MODE_RGMII,
3735                 PHY_INTERFACE_MODE_TBI, PHY_INTERFACE_MODE_RTBI,
3736                 PHY_INTERFACE_MODE_SGMII,
3737         };
3738
3739         ugeth_vdbg("%s: IN", __func__);
3740
3741         prop = of_get_property(np, "cell-index", NULL);
3742         if (!prop) {
3743                 prop = of_get_property(np, "device-id", NULL);
3744                 if (!prop)
3745                         return -ENODEV;
3746         }
3747
3748         ucc_num = *prop - 1;
3749         if ((ucc_num < 0) || (ucc_num > 7))
3750                 return -ENODEV;
3751
3752         ug_info = &ugeth_info[ucc_num];
3753         if (ug_info == NULL) {
3754                 if (netif_msg_probe(&debug))
3755                         ugeth_err("%s: [%d] Missing additional data!",
3756                                         __func__, ucc_num);
3757                 return -ENODEV;
3758         }
3759
3760         ug_info->uf_info.ucc_num = ucc_num;
3761
3762         sprop = of_get_property(np, "rx-clock-name", NULL);
3763         if (sprop) {
3764                 ug_info->uf_info.rx_clock = qe_clock_source(sprop);
3765                 if ((ug_info->uf_info.rx_clock < QE_CLK_NONE) ||
3766                     (ug_info->uf_info.rx_clock > QE_CLK24)) {
3767                         printk(KERN_ERR
3768                                 "ucc_geth: invalid rx-clock-name property\n");
3769                         return -EINVAL;
3770                 }
3771         } else {
3772                 prop = of_get_property(np, "rx-clock", NULL);
3773                 if (!prop) {
3774                         /* If both rx-clock-name and rx-clock are missing,
3775                            we want to tell people to use rx-clock-name. */
3776                         printk(KERN_ERR
3777                                 "ucc_geth: missing rx-clock-name property\n");
3778                         return -EINVAL;
3779                 }
3780                 if ((*prop < QE_CLK_NONE) || (*prop > QE_CLK24)) {
3781                         printk(KERN_ERR
3782                                 "ucc_geth: invalid rx-clock propperty\n");
3783                         return -EINVAL;
3784                 }
3785                 ug_info->uf_info.rx_clock = *prop;
3786         }
3787
3788         sprop = of_get_property(np, "tx-clock-name", NULL);
3789         if (sprop) {
3790                 ug_info->uf_info.tx_clock = qe_clock_source(sprop);
3791                 if ((ug_info->uf_info.tx_clock < QE_CLK_NONE) ||
3792                     (ug_info->uf_info.tx_clock > QE_CLK24)) {
3793                         printk(KERN_ERR
3794                                 "ucc_geth: invalid tx-clock-name property\n");
3795                         return -EINVAL;
3796                 }
3797         } else {
3798                 prop = of_get_property(np, "tx-clock", NULL);
3799                 if (!prop) {
3800                         printk(KERN_ERR
3801                                 "ucc_geth: missing tx-clock-name property\n");
3802                         return -EINVAL;
3803                 }
3804                 if ((*prop < QE_CLK_NONE) || (*prop > QE_CLK24)) {
3805                         printk(KERN_ERR
3806                                 "ucc_geth: invalid tx-clock property\n");
3807                         return -EINVAL;
3808                 }
3809                 ug_info->uf_info.tx_clock = *prop;
3810         }
3811
3812         err = of_address_to_resource(np, 0, &res);
3813         if (err)
3814                 return -EINVAL;
3815
3816         ug_info->uf_info.regs = res.start;
3817         ug_info->uf_info.irq = irq_of_parse_and_map(np, 0);
3818
3819         ug_info->phy_node = of_parse_phandle(np, "phy-handle", 0);
3820
3821         /* Find the TBI PHY node.  If it's not there, we don't support SGMII */
3822         ug_info->tbi_node = of_parse_phandle(np, "tbi-handle", 0);
3823
3824         /* get the phy interface type, or default to MII */
3825         prop = of_get_property(np, "phy-connection-type", NULL);
3826         if (!prop) {
3827                 /* handle interface property present in old trees */
3828                 prop = of_get_property(ug_info->phy_node, "interface", NULL);
3829                 if (prop != NULL) {
3830                         phy_interface = enet_to_phy_interface[*prop];
3831                         max_speed = enet_to_speed[*prop];
3832                 } else
3833                         phy_interface = PHY_INTERFACE_MODE_MII;
3834         } else {
3835                 phy_interface = to_phy_interface((const char *)prop);
3836         }
3837
3838         /* get speed, or derive from PHY interface */
3839         if (max_speed == 0)
3840                 switch (phy_interface) {
3841                 case PHY_INTERFACE_MODE_GMII:
3842                 case PHY_INTERFACE_MODE_RGMII:
3843                 case PHY_INTERFACE_MODE_RGMII_ID:
3844                 case PHY_INTERFACE_MODE_RGMII_RXID:
3845                 case PHY_INTERFACE_MODE_RGMII_TXID:
3846                 case PHY_INTERFACE_MODE_TBI:
3847                 case PHY_INTERFACE_MODE_RTBI:
3848                 case PHY_INTERFACE_MODE_SGMII:
3849                         max_speed = SPEED_1000;
3850                         break;
3851                 default:
3852                         max_speed = SPEED_100;
3853                         break;
3854                 }
3855
3856         if (max_speed == SPEED_1000) {
3857                 /* configure muram FIFOs for gigabit operation */
3858                 ug_info->uf_info.urfs = UCC_GETH_URFS_GIGA_INIT;
3859                 ug_info->uf_info.urfet = UCC_GETH_URFET_GIGA_INIT;
3860                 ug_info->uf_info.urfset = UCC_GETH_URFSET_GIGA_INIT;
3861                 ug_info->uf_info.utfs = UCC_GETH_UTFS_GIGA_INIT;
3862                 ug_info->uf_info.utfet = UCC_GETH_UTFET_GIGA_INIT;
3863                 ug_info->uf_info.utftt = UCC_GETH_UTFTT_GIGA_INIT;
3864                 ug_info->numThreadsTx = UCC_GETH_NUM_OF_THREADS_4;
3865
3866                 /* If QE's snum number is 46 which means we need to support
3867                  * 4 UECs at 1000Base-T simultaneously, we need to allocate
3868                  * more Threads to Rx.
3869                  */
3870                 if (qe_get_num_of_snums() == 46)
3871                         ug_info->numThreadsRx = UCC_GETH_NUM_OF_THREADS_6;
3872                 else
3873                         ug_info->numThreadsRx = UCC_GETH_NUM_OF_THREADS_4;
3874         }
3875
3876         if (netif_msg_probe(&debug))
3877                 printk(KERN_INFO "ucc_geth: UCC%1d at 0x%8x (irq = %d) \n",
3878                         ug_info->uf_info.ucc_num + 1, ug_info->uf_info.regs,
3879                         ug_info->uf_info.irq);
3880
3881         /* Create an ethernet device instance */
3882         dev = alloc_etherdev(sizeof(*ugeth));
3883
3884         if (dev == NULL)
3885                 return -ENOMEM;
3886
3887         ugeth = netdev_priv(dev);
3888         spin_lock_init(&ugeth->lock);
3889
3890         /* Create CQs for hash tables */
3891         INIT_LIST_HEAD(&ugeth->group_hash_q);
3892         INIT_LIST_HEAD(&ugeth->ind_hash_q);
3893
3894         dev_set_drvdata(device, dev);
3895
3896         /* Set the dev->base_addr to the gfar reg region */
3897         dev->base_addr = (unsigned long)(ug_info->uf_info.regs);
3898
3899         SET_NETDEV_DEV(dev, device);
3900
3901         /* Fill in the dev structure */
3902         uec_set_ethtool_ops(dev);
3903         dev->netdev_ops = &ucc_geth_netdev_ops;
3904         dev->watchdog_timeo = TX_TIMEOUT;
3905         INIT_WORK(&ugeth->timeout_work, ucc_geth_timeout_work);
3906         netif_napi_add(dev, &ugeth->napi, ucc_geth_poll, 64);
3907         dev->mtu = 1500;
3908
3909         ugeth->msg_enable = netif_msg_init(debug.msg_enable, UGETH_MSG_DEFAULT);
3910         ugeth->phy_interface = phy_interface;
3911         ugeth->max_speed = max_speed;
3912
3913         err = register_netdev(dev);
3914         if (err) {
3915                 if (netif_msg_probe(ugeth))
3916                         ugeth_err("%s: Cannot register net device, aborting.",
3917                                   dev->name);
3918                 free_netdev(dev);
3919                 return err;
3920         }
3921
3922         mac_addr = of_get_mac_address(np);
3923         if (mac_addr)
3924                 memcpy(dev->dev_addr, mac_addr, 6);
3925
3926         ugeth->ug_info = ug_info;
3927         ugeth->dev = device;
3928         ugeth->ndev = dev;
3929         ugeth->node = np;
3930
3931         return 0;
3932 }
3933
3934 static int ucc_geth_remove(struct of_device* ofdev)
3935 {
3936         struct device *device = &ofdev->dev;
3937         struct net_device *dev = dev_get_drvdata(device);
3938         struct ucc_geth_private *ugeth = netdev_priv(dev);
3939
3940         unregister_netdev(dev);
3941         free_netdev(dev);
3942         ucc_geth_memclean(ugeth);
3943         dev_set_drvdata(device, NULL);
3944
3945         return 0;
3946 }
3947
3948 static struct of_device_id ucc_geth_match[] = {
3949         {
3950                 .type = "network",
3951                 .compatible = "ucc_geth",
3952         },
3953         {},
3954 };
3955
3956 MODULE_DEVICE_TABLE(of, ucc_geth_match);
3957
3958 static struct of_platform_driver ucc_geth_driver = {
3959         .name           = DRV_NAME,
3960         .match_table    = ucc_geth_match,
3961         .probe          = ucc_geth_probe,
3962         .remove         = ucc_geth_remove,
3963         .suspend        = ucc_geth_suspend,
3964         .resume         = ucc_geth_resume,
3965 };
3966
3967 static int __init ucc_geth_init(void)
3968 {
3969         int i, ret;
3970
3971         if (netif_msg_drv(&debug))
3972                 printk(KERN_INFO "ucc_geth: " DRV_DESC "\n");
3973         for (i = 0; i < 8; i++)
3974                 memcpy(&(ugeth_info[i]), &ugeth_primary_info,
3975                        sizeof(ugeth_primary_info));
3976
3977         ret = of_register_platform_driver(&ucc_geth_driver);
3978
3979         return ret;
3980 }
3981
3982 static void __exit ucc_geth_exit(void)
3983 {
3984         of_unregister_platform_driver(&ucc_geth_driver);
3985 }
3986
3987 module_init(ucc_geth_init);
3988 module_exit(ucc_geth_exit);
3989
3990 MODULE_AUTHOR("Freescale Semiconductor, Inc");
3991 MODULE_DESCRIPTION(DRV_DESC);
3992 MODULE_VERSION(DRV_VERSION);
3993 MODULE_LICENSE("GPL");