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Linux 2.6.33
[pohmelfs.git] / drivers / net / niu.c
blob2aed2b382c409358bd5a72c42694ea1ea117da15
1 /* niu.c: Neptune ethernet driver.
2 *
3 * Copyright (C) 2007, 2008 David S. Miller (davem@davemloft.net)
4 */
5
6 #include <linux/module.h>
7 #include <linux/init.h>
8 #include <linux/pci.h>
9 #include <linux/dma-mapping.h>
10 #include <linux/netdevice.h>
11 #include <linux/ethtool.h>
12 #include <linux/etherdevice.h>
13 #include <linux/platform_device.h>
14 #include <linux/delay.h>
15 #include <linux/bitops.h>
16 #include <linux/mii.h>
17 #include <linux/if_ether.h>
18 #include <linux/if_vlan.h>
19 #include <linux/ip.h>
20 #include <linux/in.h>
21 #include <linux/ipv6.h>
22 #include <linux/log2.h>
23 #include <linux/jiffies.h>
24 #include <linux/crc32.h>
25 #include <linux/list.h>
26
27 #include <linux/io.h>
28
29 #ifdef CONFIG_SPARC64
30 #include <linux/of_device.h>
31 #endif
32
33 #include "niu.h"
34
35 #define DRV_MODULE_NAME "niu"
36 #define PFX DRV_MODULE_NAME ": "
37 #define DRV_MODULE_VERSION "1.0"
38 #define DRV_MODULE_RELDATE "Nov 14, 2008"
39
40 static char version[] __devinitdata =
41 DRV_MODULE_NAME ".c:v" DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")\n";
42
43 MODULE_AUTHOR("David S. Miller (davem@davemloft.net)");
44 MODULE_DESCRIPTION("NIU ethernet driver");
45 MODULE_LICENSE("GPL");
46 MODULE_VERSION(DRV_MODULE_VERSION);
47
48 #ifndef readq
49 static u64 readq(void __iomem *reg)
50 {
51 return ((u64) readl(reg)) | (((u64) readl(reg + 4UL)) << 32);
52 }
53
54 static void writeq(u64 val, void __iomem *reg)
55 {
56 writel(val & 0xffffffff, reg);
57 writel(val >> 32, reg + 0x4UL);
58 }
59 #endif
60
61 static struct pci_device_id niu_pci_tbl[] = {
62 {PCI_DEVICE(PCI_VENDOR_ID_SUN, 0xabcd)},
63 {}
64 };
65
66 MODULE_DEVICE_TABLE(pci, niu_pci_tbl);
67
68 #define NIU_TX_TIMEOUT (5 * HZ)
69
70 #define nr64(reg) readq(np->regs + (reg))
71 #define nw64(reg, val) writeq((val), np->regs + (reg))
72
73 #define nr64_mac(reg) readq(np->mac_regs + (reg))
74 #define nw64_mac(reg, val) writeq((val), np->mac_regs + (reg))
75
76 #define nr64_ipp(reg) readq(np->regs + np->ipp_off + (reg))
77 #define nw64_ipp(reg, val) writeq((val), np->regs + np->ipp_off + (reg))
78
79 #define nr64_pcs(reg) readq(np->regs + np->pcs_off + (reg))
80 #define nw64_pcs(reg, val) writeq((val), np->regs + np->pcs_off + (reg))
81
82 #define nr64_xpcs(reg) readq(np->regs + np->xpcs_off + (reg))
83 #define nw64_xpcs(reg, val) writeq((val), np->regs + np->xpcs_off + (reg))
84
85 #define NIU_MSG_DEFAULT (NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_LINK)
86
87 static int niu_debug;
88 static int debug = -1;
89 module_param(debug, int, 0);
90 MODULE_PARM_DESC(debug, "NIU debug level");
91
92 #define niudbg(TYPE, f, a...) \
93 do { if ((np)->msg_enable & NETIF_MSG_##TYPE) \
94 printk(KERN_DEBUG PFX f, ## a); \
95 } while (0)
96
97 #define niuinfo(TYPE, f, a...) \
98 do { if ((np)->msg_enable & NETIF_MSG_##TYPE) \
99 printk(KERN_INFO PFX f, ## a); \
100 } while (0)
101
102 #define niuwarn(TYPE, f, a...) \
103 do { if ((np)->msg_enable & NETIF_MSG_##TYPE) \
104 printk(KERN_WARNING PFX f, ## a); \
105 } while (0)
106
107 #define niu_lock_parent(np, flags) \
108 spin_lock_irqsave(&np->parent->lock, flags)
109 #define niu_unlock_parent(np, flags) \
110 spin_unlock_irqrestore(&np->parent->lock, flags)
111
112 static int serdes_init_10g_serdes(struct niu *np);
113
114 static int __niu_wait_bits_clear_mac(struct niu *np, unsigned long reg,
115 u64 bits, int limit, int delay)
116 {
117 while (--limit >= 0) {
118 u64 val = nr64_mac(reg);
119
120 if (!(val & bits))
121 break;
122 udelay(delay);
123 }
124 if (limit < 0)
125 return -ENODEV;
126 return 0;
127 }
128
129 static int __niu_set_and_wait_clear_mac(struct niu *np, unsigned long reg,
130 u64 bits, int limit, int delay,
131 const char *reg_name)
132 {
133 int err;
134
135 nw64_mac(reg, bits);
136 err = __niu_wait_bits_clear_mac(np, reg, bits, limit, delay);
137 if (err)
138 dev_err(np->device, PFX "%s: bits (%llx) of register %s "
139 "would not clear, val[%llx]\n",
140 np->dev->name, (unsigned long long) bits, reg_name,
141 (unsigned long long) nr64_mac(reg));
142 return err;
143 }
144
145 #define niu_set_and_wait_clear_mac(NP, REG, BITS, LIMIT, DELAY, REG_NAME) \
146 ({ BUILD_BUG_ON(LIMIT <= 0 || DELAY < 0); \
147 __niu_set_and_wait_clear_mac(NP, REG, BITS, LIMIT, DELAY, REG_NAME); \
148 })
149
150 static int __niu_wait_bits_clear_ipp(struct niu *np, unsigned long reg,
151 u64 bits, int limit, int delay)
152 {
153 while (--limit >= 0) {
154 u64 val = nr64_ipp(reg);
155
156 if (!(val & bits))
157 break;
158 udelay(delay);
159 }
160 if (limit < 0)
161 return -ENODEV;
162 return 0;
163 }
164
165 static int __niu_set_and_wait_clear_ipp(struct niu *np, unsigned long reg,
166 u64 bits, int limit, int delay,
167 const char *reg_name)
168 {
169 int err;
170 u64 val;
171
172 val = nr64_ipp(reg);
173 val |= bits;
174 nw64_ipp(reg, val);
175
176 err = __niu_wait_bits_clear_ipp(np, reg, bits, limit, delay);
177 if (err)
178 dev_err(np->device, PFX "%s: bits (%llx) of register %s "
179 "would not clear, val[%llx]\n",
180 np->dev->name, (unsigned long long) bits, reg_name,
181 (unsigned long long) nr64_ipp(reg));
182 return err;
183 }
184
185 #define niu_set_and_wait_clear_ipp(NP, REG, BITS, LIMIT, DELAY, REG_NAME) \
186 ({ BUILD_BUG_ON(LIMIT <= 0 || DELAY < 0); \
187 __niu_set_and_wait_clear_ipp(NP, REG, BITS, LIMIT, DELAY, REG_NAME); \
188 })
189
190 static int __niu_wait_bits_clear(struct niu *np, unsigned long reg,
191 u64 bits, int limit, int delay)
192 {
193 while (--limit >= 0) {
194 u64 val = nr64(reg);
195
196 if (!(val & bits))
197 break;
198 udelay(delay);
199 }
200 if (limit < 0)
201 return -ENODEV;
202 return 0;
203 }
204
205 #define niu_wait_bits_clear(NP, REG, BITS, LIMIT, DELAY) \
206 ({ BUILD_BUG_ON(LIMIT <= 0 || DELAY < 0); \
207 __niu_wait_bits_clear(NP, REG, BITS, LIMIT, DELAY); \
208 })
209
210 static int __niu_set_and_wait_clear(struct niu *np, unsigned long reg,
211 u64 bits, int limit, int delay,
212 const char *reg_name)
213 {
214 int err;
215
216 nw64(reg, bits);
217 err = __niu_wait_bits_clear(np, reg, bits, limit, delay);
218 if (err)
219 dev_err(np->device, PFX "%s: bits (%llx) of register %s "
220 "would not clear, val[%llx]\n",
221 np->dev->name, (unsigned long long) bits, reg_name,
222 (unsigned long long) nr64(reg));
223 return err;
224 }
225
226 #define niu_set_and_wait_clear(NP, REG, BITS, LIMIT, DELAY, REG_NAME) \
227 ({ BUILD_BUG_ON(LIMIT <= 0 || DELAY < 0); \
228 __niu_set_and_wait_clear(NP, REG, BITS, LIMIT, DELAY, REG_NAME); \
229 })
230
231 static void niu_ldg_rearm(struct niu *np, struct niu_ldg *lp, int on)
232 {
233 u64 val = (u64) lp->timer;
234
235 if (on)
236 val |= LDG_IMGMT_ARM;
237
238 nw64(LDG_IMGMT(lp->ldg_num), val);
239 }
240
241 static int niu_ldn_irq_enable(struct niu *np, int ldn, int on)
242 {
243 unsigned long mask_reg, bits;
244 u64 val;
245
246 if (ldn < 0 || ldn > LDN_MAX)
247 return -EINVAL;
248
249 if (ldn < 64) {
250 mask_reg = LD_IM0(ldn);
251 bits = LD_IM0_MASK;
252 } else {
253 mask_reg = LD_IM1(ldn - 64);
254 bits = LD_IM1_MASK;
255 }
256
257 val = nr64(mask_reg);
258 if (on)
259 val &= ~bits;
260 else
261 val |= bits;
262 nw64(mask_reg, val);
263
264 return 0;
265 }
266
267 static int niu_enable_ldn_in_ldg(struct niu *np, struct niu_ldg *lp, int on)
268 {
269 struct niu_parent *parent = np->parent;
270 int i;
271
272 for (i = 0; i <= LDN_MAX; i++) {
273 int err;
274
275 if (parent->ldg_map[i] != lp->ldg_num)
276 continue;
277
278 err = niu_ldn_irq_enable(np, i, on);
279 if (err)
280 return err;
281 }
282 return 0;
283 }
284
285 static int niu_enable_interrupts(struct niu *np, int on)
286 {
287 int i;
288
289 for (i = 0; i < np->num_ldg; i++) {
290 struct niu_ldg *lp = &np->ldg[i];
291 int err;
292
293 err = niu_enable_ldn_in_ldg(np, lp, on);
294 if (err)
295 return err;
296 }
297 for (i = 0; i < np->num_ldg; i++)
298 niu_ldg_rearm(np, &np->ldg[i], on);
299
300 return 0;
301 }
302
303 static u32 phy_encode(u32 type, int port)
304 {
305 return (type << (port * 2));
306 }
307
308 static u32 phy_decode(u32 val, int port)
309 {
310 return (val >> (port * 2)) & PORT_TYPE_MASK;
311 }
312
313 static int mdio_wait(struct niu *np)
314 {
315 int limit = 1000;
316 u64 val;
317
318 while (--limit > 0) {
319 val = nr64(MIF_FRAME_OUTPUT);
320 if ((val >> MIF_FRAME_OUTPUT_TA_SHIFT) & 0x1)
321 return val & MIF_FRAME_OUTPUT_DATA;
322
323 udelay(10);
324 }
325
326 return -ENODEV;
327 }
328
329 static int mdio_read(struct niu *np, int port, int dev, int reg)
330 {
331 int err;
332
333 nw64(MIF_FRAME_OUTPUT, MDIO_ADDR_OP(port, dev, reg));
334 err = mdio_wait(np);
335 if (err < 0)
336 return err;
337
338 nw64(MIF_FRAME_OUTPUT, MDIO_READ_OP(port, dev));
339 return mdio_wait(np);
340 }
341
342 static int mdio_write(struct niu *np, int port, int dev, int reg, int data)
343 {
344 int err;
345
346 nw64(MIF_FRAME_OUTPUT, MDIO_ADDR_OP(port, dev, reg));
347 err = mdio_wait(np);
348 if (err < 0)
349 return err;
350
351 nw64(MIF_FRAME_OUTPUT, MDIO_WRITE_OP(port, dev, data));
352 err = mdio_wait(np);
353 if (err < 0)
354 return err;
355
356 return 0;
357 }
358
359 static int mii_read(struct niu *np, int port, int reg)
360 {
361 nw64(MIF_FRAME_OUTPUT, MII_READ_OP(port, reg));
362 return mdio_wait(np);
363 }
364
365 static int mii_write(struct niu *np, int port, int reg, int data)
366 {
367 int err;
368
369 nw64(MIF_FRAME_OUTPUT, MII_WRITE_OP(port, reg, data));
370 err = mdio_wait(np);
371 if (err < 0)
372 return err;
373
374 return 0;
375 }
376
377 static int esr2_set_tx_cfg(struct niu *np, unsigned long channel, u32 val)
378 {
379 int err;
380
381 err = mdio_write(np, np->port, NIU_ESR2_DEV_ADDR,
382 ESR2_TI_PLL_TX_CFG_L(channel),
383 val & 0xffff);
384 if (!err)
385 err = mdio_write(np, np->port, NIU_ESR2_DEV_ADDR,
386 ESR2_TI_PLL_TX_CFG_H(channel),
387 val >> 16);
388 return err;
389 }
390
391 static int esr2_set_rx_cfg(struct niu *np, unsigned long channel, u32 val)
392 {
393 int err;
394
395 err = mdio_write(np, np->port, NIU_ESR2_DEV_ADDR,
396 ESR2_TI_PLL_RX_CFG_L(channel),
397 val & 0xffff);
398 if (!err)
399 err = mdio_write(np, np->port, NIU_ESR2_DEV_ADDR,
400 ESR2_TI_PLL_RX_CFG_H(channel),
401 val >> 16);
402 return err;
403 }
404
405 /* Mode is always 10G fiber. */
406 static int serdes_init_niu_10g_fiber(struct niu *np)
407 {
408 struct niu_link_config *lp = &np->link_config;
409 u32 tx_cfg, rx_cfg;
410 unsigned long i;
411
412 tx_cfg = (PLL_TX_CFG_ENTX | PLL_TX_CFG_SWING_1375MV);
413 rx_cfg = (PLL_RX_CFG_ENRX | PLL_RX_CFG_TERM_0P8VDDT |
414 PLL_RX_CFG_ALIGN_ENA | PLL_RX_CFG_LOS_LTHRESH |
415 PLL_RX_CFG_EQ_LP_ADAPTIVE);
416
417 if (lp->loopback_mode == LOOPBACK_PHY) {
418 u16 test_cfg = PLL_TEST_CFG_LOOPBACK_CML_DIS;
419
420 mdio_write(np, np->port, NIU_ESR2_DEV_ADDR,
421 ESR2_TI_PLL_TEST_CFG_L, test_cfg);
422
423 tx_cfg |= PLL_TX_CFG_ENTEST;
424 rx_cfg |= PLL_RX_CFG_ENTEST;
425 }
426
427 /* Initialize all 4 lanes of the SERDES. */
428 for (i = 0; i < 4; i++) {
429 int err = esr2_set_tx_cfg(np, i, tx_cfg);
430 if (err)
431 return err;
432 }
433
434 for (i = 0; i < 4; i++) {
435 int err = esr2_set_rx_cfg(np, i, rx_cfg);
436 if (err)
437 return err;
438 }
439
440 return 0;
441 }
442
443 static int serdes_init_niu_1g_serdes(struct niu *np)
444 {
445 struct niu_link_config *lp = &np->link_config;
446 u16 pll_cfg, pll_sts;
447 int max_retry = 100;
448 u64 uninitialized_var(sig), mask, val;
449 u32 tx_cfg, rx_cfg;
450 unsigned long i;
451 int err;
452
453 tx_cfg = (PLL_TX_CFG_ENTX | PLL_TX_CFG_SWING_1375MV |
454 PLL_TX_CFG_RATE_HALF);
455 rx_cfg = (PLL_RX_CFG_ENRX | PLL_RX_CFG_TERM_0P8VDDT |
456 PLL_RX_CFG_ALIGN_ENA | PLL_RX_CFG_LOS_LTHRESH |
457 PLL_RX_CFG_RATE_HALF);
458
459 if (np->port == 0)
460 rx_cfg |= PLL_RX_CFG_EQ_LP_ADAPTIVE;
461
462 if (lp->loopback_mode == LOOPBACK_PHY) {
463 u16 test_cfg = PLL_TEST_CFG_LOOPBACK_CML_DIS;
464
465 mdio_write(np, np->port, NIU_ESR2_DEV_ADDR,
466 ESR2_TI_PLL_TEST_CFG_L, test_cfg);
467
468 tx_cfg |= PLL_TX_CFG_ENTEST;
469 rx_cfg |= PLL_RX_CFG_ENTEST;
470 }
471
472 /* Initialize PLL for 1G */
473 pll_cfg = (PLL_CFG_ENPLL | PLL_CFG_MPY_8X);
474
475 err = mdio_write(np, np->port, NIU_ESR2_DEV_ADDR,
476 ESR2_TI_PLL_CFG_L, pll_cfg);
477 if (err) {
478 dev_err(np->device, PFX "NIU Port %d "
479 "serdes_init_niu_1g_serdes: "
480 "mdio write to ESR2_TI_PLL_CFG_L failed", np->port);
481 return err;
482 }
483
484 pll_sts = PLL_CFG_ENPLL;
485
486 err = mdio_write(np, np->port, NIU_ESR2_DEV_ADDR,
487 ESR2_TI_PLL_STS_L, pll_sts);
488 if (err) {
489 dev_err(np->device, PFX "NIU Port %d "
490 "serdes_init_niu_1g_serdes: "
491 "mdio write to ESR2_TI_PLL_STS_L failed", np->port);
492 return err;
493 }
494
495 udelay(200);
496
497 /* Initialize all 4 lanes of the SERDES. */
498 for (i = 0; i < 4; i++) {
499 err = esr2_set_tx_cfg(np, i, tx_cfg);
500 if (err)
501 return err;
502 }
503
504 for (i = 0; i < 4; i++) {
505 err = esr2_set_rx_cfg(np, i, rx_cfg);
506 if (err)
507 return err;
508 }
509
510 switch (np->port) {
511 case 0:
512 val = (ESR_INT_SRDY0_P0 | ESR_INT_DET0_P0);
513 mask = val;
514 break;
515
516 case 1:
517 val = (ESR_INT_SRDY0_P1 | ESR_INT_DET0_P1);
518 mask = val;
519 break;
520
521 default:
522 return -EINVAL;
523 }
524
525 while (max_retry--) {
526 sig = nr64(ESR_INT_SIGNALS);
527 if ((sig & mask) == val)
528 break;
529
530 mdelay(500);
531 }
532
533 if ((sig & mask) != val) {
534 dev_err(np->device, PFX "Port %u signal bits [%08x] are not "
535 "[%08x]\n", np->port, (int) (sig & mask), (int) val);
536 return -ENODEV;
537 }
538
539 return 0;
540 }
541
542 static int serdes_init_niu_10g_serdes(struct niu *np)
543 {
544 struct niu_link_config *lp = &np->link_config;
545 u32 tx_cfg, rx_cfg, pll_cfg, pll_sts;
546 int max_retry = 100;
547 u64 uninitialized_var(sig), mask, val;
548 unsigned long i;
549 int err;
550
551 tx_cfg = (PLL_TX_CFG_ENTX | PLL_TX_CFG_SWING_1375MV);
552 rx_cfg = (PLL_RX_CFG_ENRX | PLL_RX_CFG_TERM_0P8VDDT |
553 PLL_RX_CFG_ALIGN_ENA | PLL_RX_CFG_LOS_LTHRESH |
554 PLL_RX_CFG_EQ_LP_ADAPTIVE);
555
556 if (lp->loopback_mode == LOOPBACK_PHY) {
557 u16 test_cfg = PLL_TEST_CFG_LOOPBACK_CML_DIS;
558
559 mdio_write(np, np->port, NIU_ESR2_DEV_ADDR,
560 ESR2_TI_PLL_TEST_CFG_L, test_cfg);
561
562 tx_cfg |= PLL_TX_CFG_ENTEST;
563 rx_cfg |= PLL_RX_CFG_ENTEST;
564 }
565
566 /* Initialize PLL for 10G */
567 pll_cfg = (PLL_CFG_ENPLL | PLL_CFG_MPY_10X);
568
569 err = mdio_write(np, np->port, NIU_ESR2_DEV_ADDR,
570 ESR2_TI_PLL_CFG_L, pll_cfg & 0xffff);
571 if (err) {
572 dev_err(np->device, PFX "NIU Port %d "
573 "serdes_init_niu_10g_serdes: "
574 "mdio write to ESR2_TI_PLL_CFG_L failed", np->port);
575 return err;
576 }
577
578 pll_sts = PLL_CFG_ENPLL;
579
580 err = mdio_write(np, np->port, NIU_ESR2_DEV_ADDR,
581 ESR2_TI_PLL_STS_L, pll_sts & 0xffff);
582 if (err) {
583 dev_err(np->device, PFX "NIU Port %d "
584 "serdes_init_niu_10g_serdes: "
585 "mdio write to ESR2_TI_PLL_STS_L failed", np->port);
586 return err;
587 }
588
589 udelay(200);
590
591 /* Initialize all 4 lanes of the SERDES. */
592 for (i = 0; i < 4; i++) {
593 err = esr2_set_tx_cfg(np, i, tx_cfg);
594 if (err)
595 return err;
596 }
597
598 for (i = 0; i < 4; i++) {
599 err = esr2_set_rx_cfg(np, i, rx_cfg);
600 if (err)
601 return err;
602 }
603
604 /* check if serdes is ready */
605
606 switch (np->port) {
607 case 0:
608 mask = ESR_INT_SIGNALS_P0_BITS;
609 val = (ESR_INT_SRDY0_P0 |
610 ESR_INT_DET0_P0 |
611 ESR_INT_XSRDY_P0 |
612 ESR_INT_XDP_P0_CH3 |
613 ESR_INT_XDP_P0_CH2 |
614 ESR_INT_XDP_P0_CH1 |
615 ESR_INT_XDP_P0_CH0);
616 break;
617
618 case 1:
619 mask = ESR_INT_SIGNALS_P1_BITS;
620 val = (ESR_INT_SRDY0_P1 |
621 ESR_INT_DET0_P1 |
622 ESR_INT_XSRDY_P1 |
623 ESR_INT_XDP_P1_CH3 |
624 ESR_INT_XDP_P1_CH2 |
625 ESR_INT_XDP_P1_CH1 |
626 ESR_INT_XDP_P1_CH0);
627 break;
628
629 default:
630 return -EINVAL;
631 }
632
633 while (max_retry--) {
634 sig = nr64(ESR_INT_SIGNALS);
635 if ((sig & mask) == val)
636 break;
637
638 mdelay(500);
639 }
640
641 if ((sig & mask) != val) {
642 pr_info(PFX "NIU Port %u signal bits [%08x] are not "
643 "[%08x] for 10G...trying 1G\n",
644 np->port, (int) (sig & mask), (int) val);
645
646 /* 10G failed, try initializing at 1G */
647 err = serdes_init_niu_1g_serdes(np);
648 if (!err) {
649 np->flags &= ~NIU_FLAGS_10G;
650 np->mac_xcvr = MAC_XCVR_PCS;
651 } else {
652 dev_err(np->device, PFX "Port %u 10G/1G SERDES "
653 "Link Failed \n", np->port);
654 return -ENODEV;
655 }
656 }
657 return 0;
658 }
659
660 static int esr_read_rxtx_ctrl(struct niu *np, unsigned long chan, u32 *val)
661 {
662 int err;
663
664 err = mdio_read(np, np->port, NIU_ESR_DEV_ADDR, ESR_RXTX_CTRL_L(chan));
665 if (err >= 0) {
666 *val = (err & 0xffff);
667 err = mdio_read(np, np->port, NIU_ESR_DEV_ADDR,
668 ESR_RXTX_CTRL_H(chan));
669 if (err >= 0)
670 *val |= ((err & 0xffff) << 16);
671 err = 0;
672 }
673 return err;
674 }
675
676 static int esr_read_glue0(struct niu *np, unsigned long chan, u32 *val)
677 {
678 int err;
679
680 err = mdio_read(np, np->port, NIU_ESR_DEV_ADDR,
681 ESR_GLUE_CTRL0_L(chan));
682 if (err >= 0) {
683 *val = (err & 0xffff);
684 err = mdio_read(np, np->port, NIU_ESR_DEV_ADDR,
685 ESR_GLUE_CTRL0_H(chan));
686 if (err >= 0) {
687 *val |= ((err & 0xffff) << 16);
688 err = 0;
689 }
690 }
691 return err;
692 }
693
694 static int esr_read_reset(struct niu *np, u32 *val)
695 {
696 int err;
697
698 err = mdio_read(np, np->port, NIU_ESR_DEV_ADDR,
699 ESR_RXTX_RESET_CTRL_L);
700 if (err >= 0) {
701 *val = (err & 0xffff);
702 err = mdio_read(np, np->port, NIU_ESR_DEV_ADDR,
703 ESR_RXTX_RESET_CTRL_H);
704 if (err >= 0) {
705 *val |= ((err & 0xffff) << 16);
706 err = 0;
707 }
708 }
709 return err;
710 }
711
712 static int esr_write_rxtx_ctrl(struct niu *np, unsigned long chan, u32 val)
713 {
714 int err;
715
716 err = mdio_write(np, np->port, NIU_ESR_DEV_ADDR,
717 ESR_RXTX_CTRL_L(chan), val & 0xffff);
718 if (!err)
719 err = mdio_write(np, np->port, NIU_ESR_DEV_ADDR,
720 ESR_RXTX_CTRL_H(chan), (val >> 16));
721 return err;
722 }
723
724 static int esr_write_glue0(struct niu *np, unsigned long chan, u32 val)
725 {
726 int err;
727
728 err = mdio_write(np, np->port, NIU_ESR_DEV_ADDR,
729 ESR_GLUE_CTRL0_L(chan), val & 0xffff);
730 if (!err)
731 err = mdio_write(np, np->port, NIU_ESR_DEV_ADDR,
732 ESR_GLUE_CTRL0_H(chan), (val >> 16));
733 return err;
734 }
735
736 static int esr_reset(struct niu *np)
737 {
738 u32 uninitialized_var(reset);
739 int err;
740
741 err = mdio_write(np, np->port, NIU_ESR_DEV_ADDR,
742 ESR_RXTX_RESET_CTRL_L, 0x0000);
743 if (err)
744 return err;
745 err = mdio_write(np, np->port, NIU_ESR_DEV_ADDR,
746 ESR_RXTX_RESET_CTRL_H, 0xffff);
747 if (err)
748 return err;
749 udelay(200);
750
751 err = mdio_write(np, np->port, NIU_ESR_DEV_ADDR,
752 ESR_RXTX_RESET_CTRL_L, 0xffff);
753 if (err)
754 return err;
755 udelay(200);
756
757 err = mdio_write(np, np->port, NIU_ESR_DEV_ADDR,
758 ESR_RXTX_RESET_CTRL_H, 0x0000);
759 if (err)
760 return err;
761 udelay(200);
762
763 err = esr_read_reset(np, &reset);
764 if (err)
765 return err;
766 if (reset != 0) {
767 dev_err(np->device, PFX "Port %u ESR_RESET "
768 "did not clear [%08x]\n",
769 np->port, reset);
770 return -ENODEV;
771 }
772
773 return 0;
774 }
775
776 static int serdes_init_10g(struct niu *np)
777 {
778 struct niu_link_config *lp = &np->link_config;
779 unsigned long ctrl_reg, test_cfg_reg, i;
780 u64 ctrl_val, test_cfg_val, sig, mask, val;
781 int err;
782
783 switch (np->port) {
784 case 0:
785 ctrl_reg = ENET_SERDES_0_CTRL_CFG;
786 test_cfg_reg = ENET_SERDES_0_TEST_CFG;
787 break;
788 case 1:
789 ctrl_reg = ENET_SERDES_1_CTRL_CFG;
790 test_cfg_reg = ENET_SERDES_1_TEST_CFG;
791 break;
792
793 default:
794 return -EINVAL;
795 }
796 ctrl_val = (ENET_SERDES_CTRL_SDET_0 |
797 ENET_SERDES_CTRL_SDET_1 |
798 ENET_SERDES_CTRL_SDET_2 |
799 ENET_SERDES_CTRL_SDET_3 |
800 (0x5 << ENET_SERDES_CTRL_EMPH_0_SHIFT) |
801 (0x5 << ENET_SERDES_CTRL_EMPH_1_SHIFT) |
802 (0x5 << ENET_SERDES_CTRL_EMPH_2_SHIFT) |
803 (0x5 << ENET_SERDES_CTRL_EMPH_3_SHIFT) |
804 (0x1 << ENET_SERDES_CTRL_LADJ_0_SHIFT) |
805 (0x1 << ENET_SERDES_CTRL_LADJ_1_SHIFT) |
806 (0x1 << ENET_SERDES_CTRL_LADJ_2_SHIFT) |
807 (0x1 << ENET_SERDES_CTRL_LADJ_3_SHIFT));
808 test_cfg_val = 0;
809
810 if (lp->loopback_mode == LOOPBACK_PHY) {
811 test_cfg_val |= ((ENET_TEST_MD_PAD_LOOPBACK <<
812 ENET_SERDES_TEST_MD_0_SHIFT) |
813 (ENET_TEST_MD_PAD_LOOPBACK <<
814 ENET_SERDES_TEST_MD_1_SHIFT) |
815 (ENET_TEST_MD_PAD_LOOPBACK <<
816 ENET_SERDES_TEST_MD_2_SHIFT) |
817 (ENET_TEST_MD_PAD_LOOPBACK <<
818 ENET_SERDES_TEST_MD_3_SHIFT));
819 }
820
821 nw64(ctrl_reg, ctrl_val);
822 nw64(test_cfg_reg, test_cfg_val);
823
824 /* Initialize all 4 lanes of the SERDES. */
825 for (i = 0; i < 4; i++) {
826 u32 rxtx_ctrl, glue0;
827
828 err = esr_read_rxtx_ctrl(np, i, &rxtx_ctrl);
829 if (err)
830 return err;
831 err = esr_read_glue0(np, i, &glue0);
832 if (err)
833 return err;
834
835 rxtx_ctrl &= ~(ESR_RXTX_CTRL_VMUXLO);
836 rxtx_ctrl |= (ESR_RXTX_CTRL_ENSTRETCH |
837 (2 << ESR_RXTX_CTRL_VMUXLO_SHIFT));
838
839 glue0 &= ~(ESR_GLUE_CTRL0_SRATE |
840 ESR_GLUE_CTRL0_THCNT |
841 ESR_GLUE_CTRL0_BLTIME);
842 glue0 |= (ESR_GLUE_CTRL0_RXLOSENAB |
843 (0xf << ESR_GLUE_CTRL0_SRATE_SHIFT) |
844 (0xff << ESR_GLUE_CTRL0_THCNT_SHIFT) |
845 (BLTIME_300_CYCLES <<
846 ESR_GLUE_CTRL0_BLTIME_SHIFT));
847
848 err = esr_write_rxtx_ctrl(np, i, rxtx_ctrl);
849 if (err)
850 return err;
851 err = esr_write_glue0(np, i, glue0);
852 if (err)
853 return err;
854 }
855
856 err = esr_reset(np);
857 if (err)
858 return err;
859
860 sig = nr64(ESR_INT_SIGNALS);
861 switch (np->port) {
862 case 0:
863 mask = ESR_INT_SIGNALS_P0_BITS;
864 val = (ESR_INT_SRDY0_P0 |
865 ESR_INT_DET0_P0 |
866 ESR_INT_XSRDY_P0 |
867 ESR_INT_XDP_P0_CH3 |
868 ESR_INT_XDP_P0_CH2 |
869 ESR_INT_XDP_P0_CH1 |
870 ESR_INT_XDP_P0_CH0);
871 break;
872
873 case 1:
874 mask = ESR_INT_SIGNALS_P1_BITS;
875 val = (ESR_INT_SRDY0_P1 |
876 ESR_INT_DET0_P1 |
877 ESR_INT_XSRDY_P1 |
878 ESR_INT_XDP_P1_CH3 |
879 ESR_INT_XDP_P1_CH2 |
880 ESR_INT_XDP_P1_CH1 |
881 ESR_INT_XDP_P1_CH0);
882 break;
883
884 default:
885 return -EINVAL;
886 }
887
888 if ((sig & mask) != val) {
889 if (np->flags & NIU_FLAGS_HOTPLUG_PHY) {
890 np->flags &= ~NIU_FLAGS_HOTPLUG_PHY_PRESENT;
891 return 0;
892 }
893 dev_err(np->device, PFX "Port %u signal bits [%08x] are not "
894 "[%08x]\n", np->port, (int) (sig & mask), (int) val);
895 return -ENODEV;
896 }
897 if (np->flags & NIU_FLAGS_HOTPLUG_PHY)
898 np->flags |= NIU_FLAGS_HOTPLUG_PHY_PRESENT;
899 return 0;
900 }
901
902 static int serdes_init_1g(struct niu *np)
903 {
904 u64 val;
905
906 val = nr64(ENET_SERDES_1_PLL_CFG);
907 val &= ~ENET_SERDES_PLL_FBDIV2;
908 switch (np->port) {
909 case 0:
910 val |= ENET_SERDES_PLL_HRATE0;
911 break;
912 case 1:
913 val |= ENET_SERDES_PLL_HRATE1;
914 break;
915 case 2:
916 val |= ENET_SERDES_PLL_HRATE2;
917 break;
918 case 3:
919 val |= ENET_SERDES_PLL_HRATE3;
920 break;
921 default:
922 return -EINVAL;
923 }
924 nw64(ENET_SERDES_1_PLL_CFG, val);
925
926 return 0;
927 }
928
929 static int serdes_init_1g_serdes(struct niu *np)
930 {
931 struct niu_link_config *lp = &np->link_config;
932 unsigned long ctrl_reg, test_cfg_reg, pll_cfg, i;
933 u64 ctrl_val, test_cfg_val, sig, mask, val;
934 int err;
935 u64 reset_val, val_rd;
936
937 val = ENET_SERDES_PLL_HRATE0 | ENET_SERDES_PLL_HRATE1 |
938 ENET_SERDES_PLL_HRATE2 | ENET_SERDES_PLL_HRATE3 |
939 ENET_SERDES_PLL_FBDIV0;
940 switch (np->port) {
941 case 0:
942 reset_val = ENET_SERDES_RESET_0;
943 ctrl_reg = ENET_SERDES_0_CTRL_CFG;
944 test_cfg_reg = ENET_SERDES_0_TEST_CFG;
945 pll_cfg = ENET_SERDES_0_PLL_CFG;
946 break;
947 case 1:
948 reset_val = ENET_SERDES_RESET_1;
949 ctrl_reg = ENET_SERDES_1_CTRL_CFG;
950 test_cfg_reg = ENET_SERDES_1_TEST_CFG;
951 pll_cfg = ENET_SERDES_1_PLL_CFG;
952 break;
953
954 default:
955 return -EINVAL;
956 }
957 ctrl_val = (ENET_SERDES_CTRL_SDET_0 |
958 ENET_SERDES_CTRL_SDET_1 |
959 ENET_SERDES_CTRL_SDET_2 |
960 ENET_SERDES_CTRL_SDET_3 |
961 (0x5 << ENET_SERDES_CTRL_EMPH_0_SHIFT) |
962 (0x5 << ENET_SERDES_CTRL_EMPH_1_SHIFT) |
963 (0x5 << ENET_SERDES_CTRL_EMPH_2_SHIFT) |
964 (0x5 << ENET_SERDES_CTRL_EMPH_3_SHIFT) |
965 (0x1 << ENET_SERDES_CTRL_LADJ_0_SHIFT) |
966 (0x1 << ENET_SERDES_CTRL_LADJ_1_SHIFT) |
967 (0x1 << ENET_SERDES_CTRL_LADJ_2_SHIFT) |
968 (0x1 << ENET_SERDES_CTRL_LADJ_3_SHIFT));
969 test_cfg_val = 0;
970
971 if (lp->loopback_mode == LOOPBACK_PHY) {
972 test_cfg_val |= ((ENET_TEST_MD_PAD_LOOPBACK <<
973 ENET_SERDES_TEST_MD_0_SHIFT) |
974 (ENET_TEST_MD_PAD_LOOPBACK <<
975 ENET_SERDES_TEST_MD_1_SHIFT) |
976 (ENET_TEST_MD_PAD_LOOPBACK <<
977 ENET_SERDES_TEST_MD_2_SHIFT) |
978 (ENET_TEST_MD_PAD_LOOPBACK <<
979 ENET_SERDES_TEST_MD_3_SHIFT));
980 }
981
982 nw64(ENET_SERDES_RESET, reset_val);
983 mdelay(20);
984 val_rd = nr64(ENET_SERDES_RESET);
985 val_rd &= ~reset_val;
986 nw64(pll_cfg, val);
987 nw64(ctrl_reg, ctrl_val);
988 nw64(test_cfg_reg, test_cfg_val);
989 nw64(ENET_SERDES_RESET, val_rd);
990 mdelay(2000);
991
992 /* Initialize all 4 lanes of the SERDES. */
993 for (i = 0; i < 4; i++) {
994 u32 rxtx_ctrl, glue0;
995
996 err = esr_read_rxtx_ctrl(np, i, &rxtx_ctrl);
997 if (err)
998 return err;
999 err = esr_read_glue0(np, i, &glue0);
1000 if (err)
1001 return err;
1002
1003 rxtx_ctrl &= ~(ESR_RXTX_CTRL_VMUXLO);
1004 rxtx_ctrl |= (ESR_RXTX_CTRL_ENSTRETCH |
1005 (2 << ESR_RXTX_CTRL_VMUXLO_SHIFT));
1006
1007 glue0 &= ~(ESR_GLUE_CTRL0_SRATE |
1008 ESR_GLUE_CTRL0_THCNT |
1009 ESR_GLUE_CTRL0_BLTIME);
1010 glue0 |= (ESR_GLUE_CTRL0_RXLOSENAB |
1011 (0xf << ESR_GLUE_CTRL0_SRATE_SHIFT) |
1012 (0xff << ESR_GLUE_CTRL0_THCNT_SHIFT) |
1013 (BLTIME_300_CYCLES <<
1014 ESR_GLUE_CTRL0_BLTIME_SHIFT));
1015
1016 err = esr_write_rxtx_ctrl(np, i, rxtx_ctrl);
1017 if (err)
1018 return err;
1019 err = esr_write_glue0(np, i, glue0);
1020 if (err)
1021 return err;
1022 }
1023
1024
1025 sig = nr64(ESR_INT_SIGNALS);
1026 switch (np->port) {
1027 case 0:
1028 val = (ESR_INT_SRDY0_P0 | ESR_INT_DET0_P0);
1029 mask = val;
1030 break;
1031
1032 case 1:
1033 val = (ESR_INT_SRDY0_P1 | ESR_INT_DET0_P1);
1034 mask = val;
1035 break;
1036
1037 default:
1038 return -EINVAL;
1039 }
1040
1041 if ((sig & mask) != val) {
1042 dev_err(np->device, PFX "Port %u signal bits [%08x] are not "
1043 "[%08x]\n", np->port, (int) (sig & mask), (int) val);
1044 return -ENODEV;
1045 }
1046
1047 return 0;
1048 }
1049
1050 static int link_status_1g_serdes(struct niu *np, int *link_up_p)
1051 {
1052 struct niu_link_config *lp = &np->link_config;
1053 int link_up;
1054 u64 val;
1055 u16 current_speed;
1056 unsigned long flags;
1057 u8 current_duplex;
1058
1059 link_up = 0;
1060 current_speed = SPEED_INVALID;
1061 current_duplex = DUPLEX_INVALID;
1062
1063 spin_lock_irqsave(&np->lock, flags);
1064
1065 val = nr64_pcs(PCS_MII_STAT);
1066
1067 if (val & PCS_MII_STAT_LINK_STATUS) {
1068 link_up = 1;
1069 current_speed = SPEED_1000;
1070 current_duplex = DUPLEX_FULL;
1071 }
1072
1073 lp->active_speed = current_speed;
1074 lp->active_duplex = current_duplex;
1075 spin_unlock_irqrestore(&np->lock, flags);
1076
1077 *link_up_p = link_up;
1078 return 0;
1079 }
1080
1081 static int link_status_10g_serdes(struct niu *np, int *link_up_p)
1082 {
1083 unsigned long flags;
1084 struct niu_link_config *lp = &np->link_config;
1085 int link_up = 0;
1086 int link_ok = 1;
1087 u64 val, val2;
1088 u16 current_speed;
1089 u8 current_duplex;
1090
1091 if (!(np->flags & NIU_FLAGS_10G))
1092 return link_status_1g_serdes(np, link_up_p);
1093
1094 current_speed = SPEED_INVALID;
1095 current_duplex = DUPLEX_INVALID;
1096 spin_lock_irqsave(&np->lock, flags);
1097
1098 val = nr64_xpcs(XPCS_STATUS(0));
1099 val2 = nr64_mac(XMAC_INTER2);
1100 if (val2 & 0x01000000)
1101 link_ok = 0;
1102
1103 if ((val & 0x1000ULL) && link_ok) {
1104 link_up = 1;
1105 current_speed = SPEED_10000;
1106 current_duplex = DUPLEX_FULL;
1107 }
1108 lp->active_speed = current_speed;
1109 lp->active_duplex = current_duplex;
1110 spin_unlock_irqrestore(&np->lock, flags);
1111 *link_up_p = link_up;
1112 return 0;
1113 }
1114
1115 static int link_status_mii(struct niu *np, int *link_up_p)
1116 {
1117 struct niu_link_config *lp = &np->link_config;
1118 int err;
1119 int bmsr, advert, ctrl1000, stat1000, lpa, bmcr, estatus;
1120 int supported, advertising, active_speed, active_duplex;
1121
1122 err = mii_read(np, np->phy_addr, MII_BMCR);
1123 if (unlikely(err < 0))
1124 return err;
1125 bmcr = err;
1126
1127 err = mii_read(np, np->phy_addr, MII_BMSR);
1128 if (unlikely(err < 0))
1129 return err;
1130 bmsr = err;
1131
1132 err = mii_read(np, np->phy_addr, MII_ADVERTISE);
1133 if (unlikely(err < 0))
1134 return err;
1135 advert = err;
1136
1137 err = mii_read(np, np->phy_addr, MII_LPA);
1138 if (unlikely(err < 0))
1139 return err;
1140 lpa = err;
1141
1142 if (likely(bmsr & BMSR_ESTATEN)) {
1143 err = mii_read(np, np->phy_addr, MII_ESTATUS);
1144 if (unlikely(err < 0))
1145 return err;
1146 estatus = err;
1147
1148 err = mii_read(np, np->phy_addr, MII_CTRL1000);
1149 if (unlikely(err < 0))
1150 return err;
1151 ctrl1000 = err;
1152
1153 err = mii_read(np, np->phy_addr, MII_STAT1000);
1154 if (unlikely(err < 0))
1155 return err;
1156 stat1000 = err;
1157 } else
1158 estatus = ctrl1000 = stat1000 = 0;
1159
1160 supported = 0;
1161 if (bmsr & BMSR_ANEGCAPABLE)
1162 supported |= SUPPORTED_Autoneg;
1163 if (bmsr & BMSR_10HALF)
1164 supported |= SUPPORTED_10baseT_Half;
1165 if (bmsr & BMSR_10FULL)
1166 supported |= SUPPORTED_10baseT_Full;
1167 if (bmsr & BMSR_100HALF)
1168 supported |= SUPPORTED_100baseT_Half;
1169 if (bmsr & BMSR_100FULL)
1170 supported |= SUPPORTED_100baseT_Full;
1171 if (estatus & ESTATUS_1000_THALF)
1172 supported |= SUPPORTED_1000baseT_Half;
1173 if (estatus & ESTATUS_1000_TFULL)
1174 supported |= SUPPORTED_1000baseT_Full;
1175 lp->supported = supported;
1176
1177 advertising = 0;
1178 if (advert & ADVERTISE_10HALF)
1179 advertising |= ADVERTISED_10baseT_Half;
1180 if (advert & ADVERTISE_10FULL)
1181 advertising |= ADVERTISED_10baseT_Full;
1182 if (advert & ADVERTISE_100HALF)
1183 advertising |= ADVERTISED_100baseT_Half;
1184 if (advert & ADVERTISE_100FULL)
1185 advertising |= ADVERTISED_100baseT_Full;
1186 if (ctrl1000 & ADVERTISE_1000HALF)
1187 advertising |= ADVERTISED_1000baseT_Half;
1188 if (ctrl1000 & ADVERTISE_1000FULL)
1189 advertising |= ADVERTISED_1000baseT_Full;
1190
1191 if (bmcr & BMCR_ANENABLE) {
1192 int neg, neg1000;
1193
1194 lp->active_autoneg = 1;
1195 advertising |= ADVERTISED_Autoneg;
1196
1197 neg = advert & lpa;
1198 neg1000 = (ctrl1000 << 2) & stat1000;
1199
1200 if (neg1000 & (LPA_1000FULL | LPA_1000HALF))
1201 active_speed = SPEED_1000;
1202 else if (neg & LPA_100)
1203 active_speed = SPEED_100;
1204 else if (neg & (LPA_10HALF | LPA_10FULL))
1205 active_speed = SPEED_10;
1206 else
1207 active_speed = SPEED_INVALID;
1208
1209 if ((neg1000 & LPA_1000FULL) || (neg & LPA_DUPLEX))
1210 active_duplex = DUPLEX_FULL;
1211 else if (active_speed != SPEED_INVALID)
1212 active_duplex = DUPLEX_HALF;
1213 else
1214 active_duplex = DUPLEX_INVALID;
1215 } else {
1216 lp->active_autoneg = 0;
1217
1218 if ((bmcr & BMCR_SPEED1000) && !(bmcr & BMCR_SPEED100))
1219 active_speed = SPEED_1000;
1220 else if (bmcr & BMCR_SPEED100)
1221 active_speed = SPEED_100;
1222 else
1223 active_speed = SPEED_10;
1224
1225 if (bmcr & BMCR_FULLDPLX)
1226 active_duplex = DUPLEX_FULL;
1227 else
1228 active_duplex = DUPLEX_HALF;
1229 }
1230
1231 lp->active_advertising = advertising;
1232 lp->active_speed = active_speed;
1233 lp->active_duplex = active_duplex;
1234 *link_up_p = !!(bmsr & BMSR_LSTATUS);
1235
1236 return 0;
1237 }
1238
1239 static int link_status_1g_rgmii(struct niu *np, int *link_up_p)
1240 {
1241 struct niu_link_config *lp = &np->link_config;
1242 u16 current_speed, bmsr;
1243 unsigned long flags;
1244 u8 current_duplex;
1245 int err, link_up;
1246
1247 link_up = 0;
1248 current_speed = SPEED_INVALID;
1249 current_duplex = DUPLEX_INVALID;
1250
1251 spin_lock_irqsave(&np->lock, flags);
1252
1253 err = -EINVAL;
1254
1255 err = mii_read(np, np->phy_addr, MII_BMSR);
1256 if (err < 0)
1257 goto out;
1258
1259 bmsr = err;
1260 if (bmsr & BMSR_LSTATUS) {
1261 u16 adv, lpa, common, estat;
1262
1263 err = mii_read(np, np->phy_addr, MII_ADVERTISE);
1264 if (err < 0)
1265 goto out;
1266 adv = err;
1267
1268 err = mii_read(np, np->phy_addr, MII_LPA);
1269 if (err < 0)
1270 goto out;
1271 lpa = err;
1272
1273 common = adv & lpa;
1274
1275 err = mii_read(np, np->phy_addr, MII_ESTATUS);
1276 if (err < 0)
1277 goto out;
1278 estat = err;
1279 link_up = 1;
1280 current_speed = SPEED_1000;
1281 current_duplex = DUPLEX_FULL;
1282
1283 }
1284 lp->active_speed = current_speed;
1285 lp->active_duplex = current_duplex;
1286 err = 0;
1287
1288 out:
1289 spin_unlock_irqrestore(&np->lock, flags);
1290
1291 *link_up_p = link_up;
1292 return err;
1293 }
1294
1295 static int link_status_1g(struct niu *np, int *link_up_p)
1296 {
1297 struct niu_link_config *lp = &np->link_config;
1298 unsigned long flags;
1299 int err;
1300
1301 spin_lock_irqsave(&np->lock, flags);
1302
1303 err = link_status_mii(np, link_up_p);
1304 lp->supported |= SUPPORTED_TP;
1305 lp->active_advertising |= ADVERTISED_TP;
1306
1307 spin_unlock_irqrestore(&np->lock, flags);
1308 return err;
1309 }
1310
1311 static int bcm8704_reset(struct niu *np)
1312 {
1313 int err, limit;
1314
1315 err = mdio_read(np, np->phy_addr,
1316 BCM8704_PHYXS_DEV_ADDR, MII_BMCR);
1317 if (err < 0 || err == 0xffff)
1318 return err;
1319 err |= BMCR_RESET;
1320 err = mdio_write(np, np->phy_addr, BCM8704_PHYXS_DEV_ADDR,
1321 MII_BMCR, err);
1322 if (err)
1323 return err;
1324
1325 limit = 1000;
1326 while (--limit >= 0) {
1327 err = mdio_read(np, np->phy_addr,
1328 BCM8704_PHYXS_DEV_ADDR, MII_BMCR);
1329 if (err < 0)
1330 return err;
1331 if (!(err & BMCR_RESET))
1332 break;
1333 }
1334 if (limit < 0) {
1335 dev_err(np->device, PFX "Port %u PHY will not reset "
1336 "(bmcr=%04x)\n", np->port, (err & 0xffff));
1337 return -ENODEV;
1338 }
1339 return 0;
1340 }
1341
1342 /* When written, certain PHY registers need to be read back twice
1343 * in order for the bits to settle properly.
1344 */
1345 static int bcm8704_user_dev3_readback(struct niu *np, int reg)
1346 {
1347 int err = mdio_read(np, np->phy_addr, BCM8704_USER_DEV3_ADDR, reg);
1348 if (err < 0)
1349 return err;
1350 err = mdio_read(np, np->phy_addr, BCM8704_USER_DEV3_ADDR, reg);
1351 if (err < 0)
1352 return err;
1353 return 0;
1354 }
1355
1356 static int bcm8706_init_user_dev3(struct niu *np)
1357 {
1358 int err;
1359
1360
1361 err = mdio_read(np, np->phy_addr, BCM8704_USER_DEV3_ADDR,
1362 BCM8704_USER_OPT_DIGITAL_CTRL);
1363 if (err < 0)
1364 return err;
1365 err &= ~USER_ODIG_CTRL_GPIOS;
1366 err |= (0x3 << USER_ODIG_CTRL_GPIOS_SHIFT);
1367 err |= USER_ODIG_CTRL_RESV2;
1368 err = mdio_write(np, np->phy_addr, BCM8704_USER_DEV3_ADDR,
1369 BCM8704_USER_OPT_DIGITAL_CTRL, err);
1370 if (err)
1371 return err;
1372
1373 mdelay(1000);
1374
1375 return 0;
1376 }
1377
1378 static int bcm8704_init_user_dev3(struct niu *np)
1379 {
1380 int err;
1381
1382 err = mdio_write(np, np->phy_addr,
1383 BCM8704_USER_DEV3_ADDR, BCM8704_USER_CONTROL,
1384 (USER_CONTROL_OPTXRST_LVL |
1385 USER_CONTROL_OPBIASFLT_LVL |
1386 USER_CONTROL_OBTMPFLT_LVL |
1387 USER_CONTROL_OPPRFLT_LVL |
1388 USER_CONTROL_OPTXFLT_LVL |
1389 USER_CONTROL_OPRXLOS_LVL |
1390 USER_CONTROL_OPRXFLT_LVL |
1391 USER_CONTROL_OPTXON_LVL |
1392 (0x3f << USER_CONTROL_RES1_SHIFT)));
1393 if (err)
1394 return err;
1395
1396 err = mdio_write(np, np->phy_addr,
1397 BCM8704_USER_DEV3_ADDR, BCM8704_USER_PMD_TX_CONTROL,
1398 (USER_PMD_TX_CTL_XFP_CLKEN |
1399 (1 << USER_PMD_TX_CTL_TX_DAC_TXD_SH) |
1400 (2 << USER_PMD_TX_CTL_TX_DAC_TXCK_SH) |
1401 USER_PMD_TX_CTL_TSCK_LPWREN));
1402 if (err)
1403 return err;
1404
1405 err = bcm8704_user_dev3_readback(np, BCM8704_USER_CONTROL);
1406 if (err)
1407 return err;
1408 err = bcm8704_user_dev3_readback(np, BCM8704_USER_PMD_TX_CONTROL);
1409 if (err)
1410 return err;
1411
1412 err = mdio_read(np, np->phy_addr, BCM8704_USER_DEV3_ADDR,
1413 BCM8704_USER_OPT_DIGITAL_CTRL);
1414 if (err < 0)
1415 return err;
1416 err &= ~USER_ODIG_CTRL_GPIOS;
1417 err |= (0x3 << USER_ODIG_CTRL_GPIOS_SHIFT);
1418 err = mdio_write(np, np->phy_addr, BCM8704_USER_DEV3_ADDR,
1419 BCM8704_USER_OPT_DIGITAL_CTRL, err);
1420 if (err)
1421 return err;
1422
1423 mdelay(1000);
1424
1425 return 0;
1426 }
1427
1428 static int mrvl88x2011_act_led(struct niu *np, int val)
1429 {
1430 int err;
1431
1432 err = mdio_read(np, np->phy_addr, MRVL88X2011_USER_DEV2_ADDR,
1433 MRVL88X2011_LED_8_TO_11_CTL);
1434 if (err < 0)
1435 return err;
1436
1437 err &= ~MRVL88X2011_LED(MRVL88X2011_LED_ACT,MRVL88X2011_LED_CTL_MASK);
1438 err |= MRVL88X2011_LED(MRVL88X2011_LED_ACT,val);
1439
1440 return mdio_write(np, np->phy_addr, MRVL88X2011_USER_DEV2_ADDR,
1441 MRVL88X2011_LED_8_TO_11_CTL, err);
1442 }
1443
1444 static int mrvl88x2011_led_blink_rate(struct niu *np, int rate)
1445 {
1446 int err;
1447
1448 err = mdio_read(np, np->phy_addr, MRVL88X2011_USER_DEV2_ADDR,
1449 MRVL88X2011_LED_BLINK_CTL);
1450 if (err >= 0) {
1451 err &= ~MRVL88X2011_LED_BLKRATE_MASK;
1452 err |= (rate << 4);
1453
1454 err = mdio_write(np, np->phy_addr, MRVL88X2011_USER_DEV2_ADDR,
1455 MRVL88X2011_LED_BLINK_CTL, err);
1456 }
1457
1458 return err;
1459 }
1460
1461 static int xcvr_init_10g_mrvl88x2011(struct niu *np)
1462 {
1463 int err;
1464
1465 /* Set LED functions */
1466 err = mrvl88x2011_led_blink_rate(np, MRVL88X2011_LED_BLKRATE_134MS);
1467 if (err)
1468 return err;
1469
1470 /* led activity */
1471 err = mrvl88x2011_act_led(np, MRVL88X2011_LED_CTL_OFF);
1472 if (err)
1473 return err;
1474
1475 err = mdio_read(np, np->phy_addr, MRVL88X2011_USER_DEV3_ADDR,
1476 MRVL88X2011_GENERAL_CTL);
1477 if (err < 0)
1478 return err;
1479
1480 err |= MRVL88X2011_ENA_XFPREFCLK;
1481
1482 err = mdio_write(np, np->phy_addr, MRVL88X2011_USER_DEV3_ADDR,
1483 MRVL88X2011_GENERAL_CTL, err);
1484 if (err < 0)
1485 return err;
1486
1487 err = mdio_read(np, np->phy_addr, MRVL88X2011_USER_DEV1_ADDR,
1488 MRVL88X2011_PMA_PMD_CTL_1);
1489 if (err < 0)
1490 return err;
1491
1492 if (np->link_config.loopback_mode == LOOPBACK_MAC)
1493 err |= MRVL88X2011_LOOPBACK;
1494 else
1495 err &= ~MRVL88X2011_LOOPBACK;
1496
1497 err = mdio_write(np, np->phy_addr, MRVL88X2011_USER_DEV1_ADDR,
1498 MRVL88X2011_PMA_PMD_CTL_1, err);
1499 if (err < 0)
1500 return err;
1501
1502 /* Enable PMD */
1503 return mdio_write(np, np->phy_addr, MRVL88X2011_USER_DEV1_ADDR,
1504 MRVL88X2011_10G_PMD_TX_DIS, MRVL88X2011_ENA_PMDTX);
1505 }
1506
1507
1508 static int xcvr_diag_bcm870x(struct niu *np)
1509 {
1510 u16 analog_stat0, tx_alarm_status;
1511 int err = 0;
1512
1513 #if 1
1514 err = mdio_read(np, np->phy_addr, BCM8704_PMA_PMD_DEV_ADDR,
1515 MII_STAT1000);
1516 if (err < 0)
1517 return err;
1518 pr_info(PFX "Port %u PMA_PMD(MII_STAT1000) [%04x]\n",
1519 np->port, err);
1520
1521 err = mdio_read(np, np->phy_addr, BCM8704_USER_DEV3_ADDR, 0x20);
1522 if (err < 0)
1523 return err;
1524 pr_info(PFX "Port %u USER_DEV3(0x20) [%04x]\n",
1525 np->port, err);
1526
1527 err = mdio_read(np, np->phy_addr, BCM8704_PHYXS_DEV_ADDR,
1528 MII_NWAYTEST);
1529 if (err < 0)
1530 return err;
1531 pr_info(PFX "Port %u PHYXS(MII_NWAYTEST) [%04x]\n",
1532 np->port, err);
1533 #endif
1534
1535 /* XXX dig this out it might not be so useful XXX */
1536 err = mdio_read(np, np->phy_addr, BCM8704_USER_DEV3_ADDR,
1537 BCM8704_USER_ANALOG_STATUS0);
1538 if (err < 0)
1539 return err;
1540 err = mdio_read(np, np->phy_addr, BCM8704_USER_DEV3_ADDR,
1541 BCM8704_USER_ANALOG_STATUS0);
1542 if (err < 0)
1543 return err;
1544 analog_stat0 = err;
1545
1546 err = mdio_read(np, np->phy_addr, BCM8704_USER_DEV3_ADDR,
1547 BCM8704_USER_TX_ALARM_STATUS);
1548 if (err < 0)
1549 return err;
1550 err = mdio_read(np, np->phy_addr, BCM8704_USER_DEV3_ADDR,
1551 BCM8704_USER_TX_ALARM_STATUS);
1552 if (err < 0)
1553 return err;
1554 tx_alarm_status = err;
1555
1556 if (analog_stat0 != 0x03fc) {
1557 if ((analog_stat0 == 0x43bc) && (tx_alarm_status != 0)) {
1558 pr_info(PFX "Port %u cable not connected "
1559 "or bad cable.\n", np->port);
1560 } else if (analog_stat0 == 0x639c) {
1561 pr_info(PFX "Port %u optical module is bad "
1562 "or missing.\n", np->port);
1563 }
1564 }
1565
1566 return 0;
1567 }
1568
1569 static int xcvr_10g_set_lb_bcm870x(struct niu *np)
1570 {
1571 struct niu_link_config *lp = &np->link_config;
1572 int err;
1573
1574 err = mdio_read(np, np->phy_addr, BCM8704_PCS_DEV_ADDR,
1575 MII_BMCR);
1576 if (err < 0)
1577 return err;
1578
1579 err &= ~BMCR_LOOPBACK;
1580
1581 if (lp->loopback_mode == LOOPBACK_MAC)
1582 err |= BMCR_LOOPBACK;
1583
1584 err = mdio_write(np, np->phy_addr, BCM8704_PCS_DEV_ADDR,
1585 MII_BMCR, err);
1586 if (err)
1587 return err;
1588
1589 return 0;
1590 }
1591
1592 static int xcvr_init_10g_bcm8706(struct niu *np)
1593 {
1594 int err = 0;
1595 u64 val;
1596
1597 if ((np->flags & NIU_FLAGS_HOTPLUG_PHY) &&
1598 (np->flags & NIU_FLAGS_HOTPLUG_PHY_PRESENT) == 0)
1599 return err;
1600
1601 val = nr64_mac(XMAC_CONFIG);
1602 val &= ~XMAC_CONFIG_LED_POLARITY;
1603 val |= XMAC_CONFIG_FORCE_LED_ON;
1604 nw64_mac(XMAC_CONFIG, val);
1605
1606 val = nr64(MIF_CONFIG);
1607 val |= MIF_CONFIG_INDIRECT_MODE;
1608 nw64(MIF_CONFIG, val);
1609
1610 err = bcm8704_reset(np);
1611 if (err)
1612 return err;
1613
1614 err = xcvr_10g_set_lb_bcm870x(np);
1615 if (err)
1616 return err;
1617
1618 err = bcm8706_init_user_dev3(np);
1619 if (err)
1620 return err;
1621
1622 err = xcvr_diag_bcm870x(np);
1623 if (err)
1624 return err;
1625
1626 return 0;
1627 }
1628
1629 static int xcvr_init_10g_bcm8704(struct niu *np)
1630 {
1631 int err;
1632
1633 err = bcm8704_reset(np);
1634 if (err)
1635 return err;
1636
1637 err = bcm8704_init_user_dev3(np);
1638 if (err)
1639 return err;
1640
1641 err = xcvr_10g_set_lb_bcm870x(np);
1642 if (err)
1643 return err;
1644
1645 err = xcvr_diag_bcm870x(np);
1646 if (err)
1647 return err;
1648
1649 return 0;
1650 }
1651
1652 static int xcvr_init_10g(struct niu *np)
1653 {
1654 int phy_id, err;
1655 u64 val;
1656
1657 val = nr64_mac(XMAC_CONFIG);
1658 val &= ~XMAC_CONFIG_LED_POLARITY;
1659 val |= XMAC_CONFIG_FORCE_LED_ON;
1660 nw64_mac(XMAC_CONFIG, val);
1661
1662 /* XXX shared resource, lock parent XXX */
1663 val = nr64(MIF_CONFIG);
1664 val |= MIF_CONFIG_INDIRECT_MODE;
1665 nw64(MIF_CONFIG, val);
1666
1667 phy_id = phy_decode(np->parent->port_phy, np->port);
1668 phy_id = np->parent->phy_probe_info.phy_id[phy_id][np->port];
1669
1670 /* handle different phy types */
1671 switch (phy_id & NIU_PHY_ID_MASK) {
1672 case NIU_PHY_ID_MRVL88X2011:
1673 err = xcvr_init_10g_mrvl88x2011(np);
1674 break;
1675
1676 default: /* bcom 8704 */
1677 err = xcvr_init_10g_bcm8704(np);
1678 break;
1679 }
1680
1681 return 0;
1682 }
1683
1684 static int mii_reset(struct niu *np)
1685 {
1686 int limit, err;
1687
1688 err = mii_write(np, np->phy_addr, MII_BMCR, BMCR_RESET);
1689 if (err)
1690 return err;
1691
1692 limit = 1000;
1693 while (--limit >= 0) {
1694 udelay(500);
1695 err = mii_read(np, np->phy_addr, MII_BMCR);
1696 if (err < 0)
1697 return err;
1698 if (!(err & BMCR_RESET))
1699 break;
1700 }
1701 if (limit < 0) {
1702 dev_err(np->device, PFX "Port %u MII would not reset, "
1703 "bmcr[%04x]\n", np->port, err);
1704 return -ENODEV;
1705 }
1706
1707 return 0;
1708 }
1709
1710 static int xcvr_init_1g_rgmii(struct niu *np)
1711 {
1712 int err;
1713 u64 val;
1714 u16 bmcr, bmsr, estat;
1715
1716 val = nr64(MIF_CONFIG);
1717 val &= ~MIF_CONFIG_INDIRECT_MODE;
1718 nw64(MIF_CONFIG, val);
1719
1720 err = mii_reset(np);
1721 if (err)
1722 return err;
1723
1724 err = mii_read(np, np->phy_addr, MII_BMSR);
1725 if (err < 0)
1726 return err;
1727 bmsr = err;
1728
1729 estat = 0;
1730 if (bmsr & BMSR_ESTATEN) {
1731 err = mii_read(np, np->phy_addr, MII_ESTATUS);
1732 if (err < 0)
1733 return err;
1734 estat = err;
1735 }
1736
1737 bmcr = 0;
1738 err = mii_write(np, np->phy_addr, MII_BMCR, bmcr);
1739 if (err)
1740 return err;
1741
1742 if (bmsr & BMSR_ESTATEN) {
1743 u16 ctrl1000 = 0;
1744
1745 if (estat & ESTATUS_1000_TFULL)
1746 ctrl1000 |= ADVERTISE_1000FULL;
1747 err = mii_write(np, np->phy_addr, MII_CTRL1000, ctrl1000);
1748 if (err)
1749 return err;
1750 }
1751
1752 bmcr = (BMCR_SPEED1000 | BMCR_FULLDPLX);
1753
1754 err = mii_write(np, np->phy_addr, MII_BMCR, bmcr);
1755 if (err)
1756 return err;
1757
1758 err = mii_read(np, np->phy_addr, MII_BMCR);
1759 if (err < 0)
1760 return err;
1761 bmcr = mii_read(np, np->phy_addr, MII_BMCR);
1762
1763 err = mii_read(np, np->phy_addr, MII_BMSR);
1764 if (err < 0)
1765 return err;
1766
1767 return 0;
1768 }
1769
1770 static int mii_init_common(struct niu *np)
1771 {
1772 struct niu_link_config *lp = &np->link_config;
1773 u16 bmcr, bmsr, adv, estat;
1774 int err;
1775
1776 err = mii_reset(np);
1777 if (err)
1778 return err;
1779
1780 err = mii_read(np, np->phy_addr, MII_BMSR);
1781 if (err < 0)
1782 return err;
1783 bmsr = err;
1784
1785 estat = 0;
1786 if (bmsr & BMSR_ESTATEN) {
1787 err = mii_read(np, np->phy_addr, MII_ESTATUS);
1788 if (err < 0)
1789 return err;
1790 estat = err;
1791 }
1792
1793 bmcr = 0;
1794 err = mii_write(np, np->phy_addr, MII_BMCR, bmcr);
1795 if (err)
1796 return err;
1797
1798 if (lp->loopback_mode == LOOPBACK_MAC) {
1799 bmcr |= BMCR_LOOPBACK;
1800 if (lp->active_speed == SPEED_1000)
1801 bmcr |= BMCR_SPEED1000;
1802 if (lp->active_duplex == DUPLEX_FULL)
1803 bmcr |= BMCR_FULLDPLX;
1804 }
1805
1806 if (lp->loopback_mode == LOOPBACK_PHY) {
1807 u16 aux;
1808
1809 aux = (BCM5464R_AUX_CTL_EXT_LB |
1810 BCM5464R_AUX_CTL_WRITE_1);
1811 err = mii_write(np, np->phy_addr, BCM5464R_AUX_CTL, aux);
1812 if (err)
1813 return err;
1814 }
1815
1816 if (lp->autoneg) {
1817 u16 ctrl1000;
1818
1819 adv = ADVERTISE_CSMA | ADVERTISE_PAUSE_CAP;
1820 if ((bmsr & BMSR_10HALF) &&
1821 (lp->advertising & ADVERTISED_10baseT_Half))
1822 adv |= ADVERTISE_10HALF;
1823 if ((bmsr & BMSR_10FULL) &&
1824 (lp->advertising & ADVERTISED_10baseT_Full))
1825 adv |= ADVERTISE_10FULL;
1826 if ((bmsr & BMSR_100HALF) &&
1827 (lp->advertising & ADVERTISED_100baseT_Half))
1828 adv |= ADVERTISE_100HALF;
1829 if ((bmsr & BMSR_100FULL) &&
1830 (lp->advertising & ADVERTISED_100baseT_Full))
1831 adv |= ADVERTISE_100FULL;
1832 err = mii_write(np, np->phy_addr, MII_ADVERTISE, adv);
1833 if (err)
1834 return err;
1835
1836 if (likely(bmsr & BMSR_ESTATEN)) {
1837 ctrl1000 = 0;
1838 if ((estat & ESTATUS_1000_THALF) &&
1839 (lp->advertising & ADVERTISED_1000baseT_Half))
1840 ctrl1000 |= ADVERTISE_1000HALF;
1841 if ((estat & ESTATUS_1000_TFULL) &&
1842 (lp->advertising & ADVERTISED_1000baseT_Full))
1843 ctrl1000 |= ADVERTISE_1000FULL;
1844 err = mii_write(np, np->phy_addr,
1845 MII_CTRL1000, ctrl1000);
1846 if (err)
1847 return err;
1848 }
1849
1850 bmcr |= (BMCR_ANENABLE | BMCR_ANRESTART);
1851 } else {
1852 /* !lp->autoneg */
1853 int fulldpx;
1854
1855 if (lp->duplex == DUPLEX_FULL) {
1856 bmcr |= BMCR_FULLDPLX;
1857 fulldpx = 1;
1858 } else if (lp->duplex == DUPLEX_HALF)
1859 fulldpx = 0;
1860 else
1861 return -EINVAL;
1862
1863 if (lp->speed == SPEED_1000) {
1864 /* if X-full requested while not supported, or
1865 X-half requested while not supported... */
1866 if ((fulldpx && !(estat & ESTATUS_1000_TFULL)) ||
1867 (!fulldpx && !(estat & ESTATUS_1000_THALF)))
1868 return -EINVAL;
1869 bmcr |= BMCR_SPEED1000;
1870 } else if (lp->speed == SPEED_100) {
1871 if ((fulldpx && !(bmsr & BMSR_100FULL)) ||
1872 (!fulldpx && !(bmsr & BMSR_100HALF)))
1873 return -EINVAL;
1874 bmcr |= BMCR_SPEED100;
1875 } else if (lp->speed == SPEED_10) {
1876 if ((fulldpx && !(bmsr & BMSR_10FULL)) ||
1877 (!fulldpx && !(bmsr & BMSR_10HALF)))
1878 return -EINVAL;
1879 } else
1880 return -EINVAL;
1881 }
1882
1883 err = mii_write(np, np->phy_addr, MII_BMCR, bmcr);
1884 if (err)
1885 return err;
1886
1887 #if 0
1888 err = mii_read(np, np->phy_addr, MII_BMCR);
1889 if (err < 0)
1890 return err;
1891 bmcr = err;
1892
1893 err = mii_read(np, np->phy_addr, MII_BMSR);
1894 if (err < 0)
1895 return err;
1896 bmsr = err;
1897
1898 pr_info(PFX "Port %u after MII init bmcr[%04x] bmsr[%04x]\n",
1899 np->port, bmcr, bmsr);
1900 #endif
1901
1902 return 0;
1903 }
1904
1905 static int xcvr_init_1g(struct niu *np)
1906 {
1907 u64 val;
1908
1909 /* XXX shared resource, lock parent XXX */
1910 val = nr64(MIF_CONFIG);
1911 val &= ~MIF_CONFIG_INDIRECT_MODE;
1912 nw64(MIF_CONFIG, val);
1913
1914 return mii_init_common(np);
1915 }
1916
1917 static int niu_xcvr_init(struct niu *np)
1918 {
1919 const struct niu_phy_ops *ops = np->phy_ops;
1920 int err;
1921
1922 err = 0;
1923 if (ops->xcvr_init)
1924 err = ops->xcvr_init(np);
1925
1926 return err;
1927 }
1928
1929 static int niu_serdes_init(struct niu *np)
1930 {
1931 const struct niu_phy_ops *ops = np->phy_ops;
1932 int err;
1933
1934 err = 0;
1935 if (ops->serdes_init)
1936 err = ops->serdes_init(np);
1937
1938 return err;
1939 }
1940
1941 static void niu_init_xif(struct niu *);
1942 static void niu_handle_led(struct niu *, int status);
1943
1944 static int niu_link_status_common(struct niu *np, int link_up)
1945 {
1946 struct niu_link_config *lp = &np->link_config;
1947 struct net_device *dev = np->dev;
1948 unsigned long flags;
1949
1950 if (!netif_carrier_ok(dev) && link_up) {
1951 niuinfo(LINK, "%s: Link is up at %s, %s duplex\n",
1952 dev->name,
1953 (lp->active_speed == SPEED_10000 ?
1954 "10Gb/sec" :
1955 (lp->active_speed == SPEED_1000 ?
1956 "1Gb/sec" :
1957 (lp->active_speed == SPEED_100 ?
1958 "100Mbit/sec" : "10Mbit/sec"))),
1959 (lp->active_duplex == DUPLEX_FULL ?
1960 "full" : "half"));
1961
1962 spin_lock_irqsave(&np->lock, flags);
1963 niu_init_xif(np);
1964 niu_handle_led(np, 1);
1965 spin_unlock_irqrestore(&np->lock, flags);
1966
1967 netif_carrier_on(dev);
1968 } else if (netif_carrier_ok(dev) && !link_up) {
1969 niuwarn(LINK, "%s: Link is down\n", dev->name);
1970 spin_lock_irqsave(&np->lock, flags);
1971 niu_handle_led(np, 0);
1972 spin_unlock_irqrestore(&np->lock, flags);
1973 netif_carrier_off(dev);
1974 }
1975
1976 return 0;
1977 }
1978
1979 static int link_status_10g_mrvl(struct niu *np, int *link_up_p)
1980 {
1981 int err, link_up, pma_status, pcs_status;
1982
1983 link_up = 0;
1984
1985 err = mdio_read(np, np->phy_addr, MRVL88X2011_USER_DEV1_ADDR,
1986 MRVL88X2011_10G_PMD_STATUS_2);
1987 if (err < 0)
1988 goto out;
1989
1990 /* Check PMA/PMD Register: 1.0001.2 == 1 */
1991 err = mdio_read(np, np->phy_addr, MRVL88X2011_USER_DEV1_ADDR,
1992 MRVL88X2011_PMA_PMD_STATUS_1);
1993 if (err < 0)
1994 goto out;
1995
1996 pma_status = ((err & MRVL88X2011_LNK_STATUS_OK) ? 1 : 0);
1997
1998 /* Check PMC Register : 3.0001.2 == 1: read twice */
1999 err = mdio_read(np, np->phy_addr, MRVL88X2011_USER_DEV3_ADDR,
2000 MRVL88X2011_PMA_PMD_STATUS_1);
2001 if (err < 0)
2002 goto out;
2003
2004 err = mdio_read(np, np->phy_addr, MRVL88X2011_USER_DEV3_ADDR,
2005 MRVL88X2011_PMA_PMD_STATUS_1);
2006 if (err < 0)
2007 goto out;
2008
2009 pcs_status = ((err & MRVL88X2011_LNK_STATUS_OK) ? 1 : 0);
2010
2011 /* Check XGXS Register : 4.0018.[0-3,12] */
2012 err = mdio_read(np, np->phy_addr, MRVL88X2011_USER_DEV4_ADDR,
2013 MRVL88X2011_10G_XGXS_LANE_STAT);
2014 if (err < 0)
2015 goto out;
2016
2017 if (err == (PHYXS_XGXS_LANE_STAT_ALINGED | PHYXS_XGXS_LANE_STAT_LANE3 |
2018 PHYXS_XGXS_LANE_STAT_LANE2 | PHYXS_XGXS_LANE_STAT_LANE1 |
2019 PHYXS_XGXS_LANE_STAT_LANE0 | PHYXS_XGXS_LANE_STAT_MAGIC |
2020 0x800))
2021 link_up = (pma_status && pcs_status) ? 1 : 0;
2022
2023 np->link_config.active_speed = SPEED_10000;
2024 np->link_config.active_duplex = DUPLEX_FULL;
2025 err = 0;
2026 out:
2027 mrvl88x2011_act_led(np, (link_up ?
2028 MRVL88X2011_LED_CTL_PCS_ACT :
2029 MRVL88X2011_LED_CTL_OFF));
2030
2031 *link_up_p = link_up;
2032 return err;
2033 }
2034
2035 static int link_status_10g_bcm8706(struct niu *np, int *link_up_p)
2036 {
2037 int err, link_up;
2038 link_up = 0;
2039
2040 err = mdio_read(np, np->phy_addr, BCM8704_PMA_PMD_DEV_ADDR,
2041 BCM8704_PMD_RCV_SIGDET);
2042 if (err < 0 || err == 0xffff)
2043 goto out;
2044 if (!(err & PMD_RCV_SIGDET_GLOBAL)) {
2045 err = 0;
2046 goto out;
2047 }
2048
2049 err = mdio_read(np, np->phy_addr, BCM8704_PCS_DEV_ADDR,
2050 BCM8704_PCS_10G_R_STATUS);
2051 if (err < 0)
2052 goto out;
2053
2054 if (!(err & PCS_10G_R_STATUS_BLK_LOCK)) {
2055 err = 0;
2056 goto out;
2057 }
2058
2059 err = mdio_read(np, np->phy_addr, BCM8704_PHYXS_DEV_ADDR,
2060 BCM8704_PHYXS_XGXS_LANE_STAT);
2061 if (err < 0)
2062 goto out;
2063 if (err != (PHYXS_XGXS_LANE_STAT_ALINGED |
2064 PHYXS_XGXS_LANE_STAT_MAGIC |
2065 PHYXS_XGXS_LANE_STAT_PATTEST |
2066 PHYXS_XGXS_LANE_STAT_LANE3 |
2067 PHYXS_XGXS_LANE_STAT_LANE2 |
2068 PHYXS_XGXS_LANE_STAT_LANE1 |
2069 PHYXS_XGXS_LANE_STAT_LANE0)) {
2070 err = 0;
2071 np->link_config.active_speed = SPEED_INVALID;
2072 np->link_config.active_duplex = DUPLEX_INVALID;
2073 goto out;
2074 }
2075
2076 link_up = 1;
2077 np->link_config.active_speed = SPEED_10000;
2078 np->link_config.active_duplex = DUPLEX_FULL;
2079 err = 0;
2080
2081 out:
2082 *link_up_p = link_up;
2083 return err;
2084 }
2085
2086 static int link_status_10g_bcom(struct niu *np, int *link_up_p)
2087 {
2088 int err, link_up;
2089
2090 link_up = 0;
2091
2092 err = mdio_read(np, np->phy_addr, BCM8704_PMA_PMD_DEV_ADDR,
2093 BCM8704_PMD_RCV_SIGDET);
2094 if (err < 0)
2095 goto out;
2096 if (!(err & PMD_RCV_SIGDET_GLOBAL)) {
2097 err = 0;
2098 goto out;
2099 }
2100
2101 err = mdio_read(np, np->phy_addr, BCM8704_PCS_DEV_ADDR,
2102 BCM8704_PCS_10G_R_STATUS);
2103 if (err < 0)
2104 goto out;
2105 if (!(err & PCS_10G_R_STATUS_BLK_LOCK)) {
2106 err = 0;
2107 goto out;
2108 }
2109
2110 err = mdio_read(np, np->phy_addr, BCM8704_PHYXS_DEV_ADDR,
2111 BCM8704_PHYXS_XGXS_LANE_STAT);
2112 if (err < 0)
2113 goto out;
2114
2115 if (err != (PHYXS_XGXS_LANE_STAT_ALINGED |
2116 PHYXS_XGXS_LANE_STAT_MAGIC |
2117 PHYXS_XGXS_LANE_STAT_LANE3 |
2118 PHYXS_XGXS_LANE_STAT_LANE2 |
2119 PHYXS_XGXS_LANE_STAT_LANE1 |
2120 PHYXS_XGXS_LANE_STAT_LANE0)) {
2121 err = 0;
2122 goto out;
2123 }
2124
2125 link_up = 1;
2126 np->link_config.active_speed = SPEED_10000;
2127 np->link_config.active_duplex = DUPLEX_FULL;
2128 err = 0;
2129
2130 out:
2131 *link_up_p = link_up;
2132 return err;
2133 }
2134
2135 static int link_status_10g(struct niu *np, int *link_up_p)
2136 {
2137 unsigned long flags;
2138 int err = -EINVAL;
2139
2140 spin_lock_irqsave(&np->lock, flags);
2141
2142 if (np->link_config.loopback_mode == LOOPBACK_DISABLED) {
2143 int phy_id;
2144
2145 phy_id = phy_decode(np->parent->port_phy, np->port);
2146 phy_id = np->parent->phy_probe_info.phy_id[phy_id][np->port];
2147
2148 /* handle different phy types */
2149 switch (phy_id & NIU_PHY_ID_MASK) {
2150 case NIU_PHY_ID_MRVL88X2011:
2151 err = link_status_10g_mrvl(np, link_up_p);
2152 break;
2153
2154 default: /* bcom 8704 */
2155 err = link_status_10g_bcom(np, link_up_p);
2156 break;
2157 }
2158 }
2159
2160 spin_unlock_irqrestore(&np->lock, flags);
2161
2162 return err;
2163 }
2164
2165 static int niu_10g_phy_present(struct niu *np)
2166 {
2167 u64 sig, mask, val;
2168
2169 sig = nr64(ESR_INT_SIGNALS);
2170 switch (np->port) {
2171 case 0:
2172 mask = ESR_INT_SIGNALS_P0_BITS;
2173 val = (ESR_INT_SRDY0_P0 |
2174 ESR_INT_DET0_P0 |
2175 ESR_INT_XSRDY_P0 |
2176 ESR_INT_XDP_P0_CH3 |
2177 ESR_INT_XDP_P0_CH2 |
2178 ESR_INT_XDP_P0_CH1 |
2179 ESR_INT_XDP_P0_CH0);
2180 break;
2181
2182 case 1:
2183 mask = ESR_INT_SIGNALS_P1_BITS;
2184 val = (ESR_INT_SRDY0_P1 |
2185 ESR_INT_DET0_P1 |
2186 ESR_INT_XSRDY_P1 |
2187 ESR_INT_XDP_P1_CH3 |
2188 ESR_INT_XDP_P1_CH2 |
2189 ESR_INT_XDP_P1_CH1 |
2190 ESR_INT_XDP_P1_CH0);
2191 break;
2192
2193 default:
2194 return 0;
2195 }
2196
2197 if ((sig & mask) != val)
2198 return 0;
2199 return 1;
2200 }
2201
2202 static int link_status_10g_hotplug(struct niu *np, int *link_up_p)
2203 {
2204 unsigned long flags;
2205 int err = 0;
2206 int phy_present;
2207 int phy_present_prev;
2208
2209 spin_lock_irqsave(&np->lock, flags);
2210
2211 if (np->link_config.loopback_mode == LOOPBACK_DISABLED) {
2212 phy_present_prev = (np->flags & NIU_FLAGS_HOTPLUG_PHY_PRESENT) ?
2213 1 : 0;
2214 phy_present = niu_10g_phy_present(np);
2215 if (phy_present != phy_present_prev) {
2216 /* state change */
2217 if (phy_present) {
2218 /* A NEM was just plugged in */
2219 np->flags |= NIU_FLAGS_HOTPLUG_PHY_PRESENT;
2220 if (np->phy_ops->xcvr_init)
2221 err = np->phy_ops->xcvr_init(np);
2222 if (err) {
2223 err = mdio_read(np, np->phy_addr,
2224 BCM8704_PHYXS_DEV_ADDR, MII_BMCR);
2225 if (err == 0xffff) {
2226 /* No mdio, back-to-back XAUI */
2227 goto out;
2228 }
2229 /* debounce */
2230 np->flags &= ~NIU_FLAGS_HOTPLUG_PHY_PRESENT;
2231 }
2232 } else {
2233 np->flags &= ~NIU_FLAGS_HOTPLUG_PHY_PRESENT;
2234 *link_up_p = 0;
2235 niuwarn(LINK, "%s: Hotplug PHY Removed\n",
2236 np->dev->name);
2237 }
2238 }
2239 out:
2240 if (np->flags & NIU_FLAGS_HOTPLUG_PHY_PRESENT) {
2241 err = link_status_10g_bcm8706(np, link_up_p);
2242 if (err == 0xffff) {
2243 /* No mdio, back-to-back XAUI: it is C10NEM */
2244 *link_up_p = 1;
2245 np->link_config.active_speed = SPEED_10000;
2246 np->link_config.active_duplex = DUPLEX_FULL;
2247 }
2248 }
2249 }
2250
2251 spin_unlock_irqrestore(&np->lock, flags);
2252
2253 return 0;
2254 }
2255
2256 static int niu_link_status(struct niu *np, int *link_up_p)
2257 {
2258 const struct niu_phy_ops *ops = np->phy_ops;
2259 int err;
2260
2261 err = 0;
2262 if (ops->link_status)
2263 err = ops->link_status(np, link_up_p);
2264
2265 return err;
2266 }
2267
2268 static void niu_timer(unsigned long __opaque)
2269 {
2270 struct niu *np = (struct niu *) __opaque;
2271 unsigned long off;
2272 int err, link_up;
2273
2274 err = niu_link_status(np, &link_up);
2275 if (!err)
2276 niu_link_status_common(np, link_up);
2277
2278 if (netif_carrier_ok(np->dev))
2279 off = 5 * HZ;
2280 else
2281 off = 1 * HZ;
2282 np->timer.expires = jiffies + off;
2283
2284 add_timer(&np->timer);
2285 }
2286
2287 static const struct niu_phy_ops phy_ops_10g_serdes = {
2288 .serdes_init = serdes_init_10g_serdes,
2289 .link_status = link_status_10g_serdes,
2290 };
2291
2292 static const struct niu_phy_ops phy_ops_10g_serdes_niu = {
2293 .serdes_init = serdes_init_niu_10g_serdes,
2294 .link_status = link_status_10g_serdes,
2295 };
2296
2297 static const struct niu_phy_ops phy_ops_1g_serdes_niu = {
2298 .serdes_init = serdes_init_niu_1g_serdes,
2299 .link_status = link_status_1g_serdes,
2300 };
2301
2302 static const struct niu_phy_ops phy_ops_1g_rgmii = {
2303 .xcvr_init = xcvr_init_1g_rgmii,
2304 .link_status = link_status_1g_rgmii,
2305 };
2306
2307 static const struct niu_phy_ops phy_ops_10g_fiber_niu = {
2308 .serdes_init = serdes_init_niu_10g_fiber,
2309 .xcvr_init = xcvr_init_10g,
2310 .link_status = link_status_10g,
2311 };
2312
2313 static const struct niu_phy_ops phy_ops_10g_fiber = {
2314 .serdes_init = serdes_init_10g,
2315 .xcvr_init = xcvr_init_10g,
2316 .link_status = link_status_10g,
2317 };
2318
2319 static const struct niu_phy_ops phy_ops_10g_fiber_hotplug = {
2320 .serdes_init = serdes_init_10g,
2321 .xcvr_init = xcvr_init_10g_bcm8706,
2322 .link_status = link_status_10g_hotplug,
2323 };
2324
2325 static const struct niu_phy_ops phy_ops_niu_10g_hotplug = {
2326 .serdes_init = serdes_init_niu_10g_fiber,
2327 .xcvr_init = xcvr_init_10g_bcm8706,
2328 .link_status = link_status_10g_hotplug,
2329 };
2330
2331 static const struct niu_phy_ops phy_ops_10g_copper = {
2332 .serdes_init = serdes_init_10g,
2333 .link_status = link_status_10g, /* XXX */
2334 };
2335
2336 static const struct niu_phy_ops phy_ops_1g_fiber = {
2337 .serdes_init = serdes_init_1g,
2338 .xcvr_init = xcvr_init_1g,
2339 .link_status = link_status_1g,
2340 };
2341
2342 static const struct niu_phy_ops phy_ops_1g_copper = {
2343 .xcvr_init = xcvr_init_1g,
2344 .link_status = link_status_1g,
2345 };
2346
2347 struct niu_phy_template {
2348 const struct niu_phy_ops *ops;
2349 u32 phy_addr_base;
2350 };
2351
2352 static const struct niu_phy_template phy_template_niu_10g_fiber = {
2353 .ops = &phy_ops_10g_fiber_niu,
2354 .phy_addr_base = 16,
2355 };
2356
2357 static const struct niu_phy_template phy_template_niu_10g_serdes = {
2358 .ops = &phy_ops_10g_serdes_niu,
2359 .phy_addr_base = 0,
2360 };
2361
2362 static const struct niu_phy_template phy_template_niu_1g_serdes = {
2363 .ops = &phy_ops_1g_serdes_niu,
2364 .phy_addr_base = 0,
2365 };
2366
2367 static const struct niu_phy_template phy_template_10g_fiber = {
2368 .ops = &phy_ops_10g_fiber,
2369 .phy_addr_base = 8,
2370 };
2371
2372 static const struct niu_phy_template phy_template_10g_fiber_hotplug = {
2373 .ops = &phy_ops_10g_fiber_hotplug,
2374 .phy_addr_base = 8,
2375 };
2376
2377 static const struct niu_phy_template phy_template_niu_10g_hotplug = {
2378 .ops = &phy_ops_niu_10g_hotplug,
2379 .phy_addr_base = 8,
2380 };
2381
2382 static const struct niu_phy_template phy_template_10g_copper = {
2383 .ops = &phy_ops_10g_copper,
2384 .phy_addr_base = 10,
2385 };
2386
2387 static const struct niu_phy_template phy_template_1g_fiber = {
2388 .ops = &phy_ops_1g_fiber,
2389 .phy_addr_base = 0,
2390 };
2391
2392 static const struct niu_phy_template phy_template_1g_copper = {
2393 .ops = &phy_ops_1g_copper,
2394 .phy_addr_base = 0,
2395 };
2396
2397 static const struct niu_phy_template phy_template_1g_rgmii = {
2398 .ops = &phy_ops_1g_rgmii,
2399 .phy_addr_base = 0,
2400 };
2401
2402 static const struct niu_phy_template phy_template_10g_serdes = {
2403 .ops = &phy_ops_10g_serdes,
2404 .phy_addr_base = 0,
2405 };
2406
2407 static int niu_atca_port_num[4] = {
2408 0, 0, 11, 10
2409 };
2410
2411 static int serdes_init_10g_serdes(struct niu *np)
2412 {
2413 struct niu_link_config *lp = &np->link_config;
2414 unsigned long ctrl_reg, test_cfg_reg, pll_cfg, i;
2415 u64 ctrl_val, test_cfg_val, sig, mask, val;
2416 u64 reset_val;
2417
2418 switch (np->port) {
2419 case 0:
2420 reset_val = ENET_SERDES_RESET_0;
2421 ctrl_reg = ENET_SERDES_0_CTRL_CFG;
2422 test_cfg_reg = ENET_SERDES_0_TEST_CFG;
2423 pll_cfg = ENET_SERDES_0_PLL_CFG;
2424 break;
2425 case 1:
2426 reset_val = ENET_SERDES_RESET_1;
2427 ctrl_reg = ENET_SERDES_1_CTRL_CFG;
2428 test_cfg_reg = ENET_SERDES_1_TEST_CFG;
2429 pll_cfg = ENET_SERDES_1_PLL_CFG;
2430 break;
2431
2432 default:
2433 return -EINVAL;
2434 }
2435 ctrl_val = (ENET_SERDES_CTRL_SDET_0 |
2436 ENET_SERDES_CTRL_SDET_1 |
2437 ENET_SERDES_CTRL_SDET_2 |
2438 ENET_SERDES_CTRL_SDET_3 |
2439 (0x5 << ENET_SERDES_CTRL_EMPH_0_SHIFT) |
2440 (0x5 << ENET_SERDES_CTRL_EMPH_1_SHIFT) |
2441 (0x5 << ENET_SERDES_CTRL_EMPH_2_SHIFT) |
2442 (0x5 << ENET_SERDES_CTRL_EMPH_3_SHIFT) |
2443 (0x1 << ENET_SERDES_CTRL_LADJ_0_SHIFT) |
2444 (0x1 << ENET_SERDES_CTRL_LADJ_1_SHIFT) |
2445 (0x1 << ENET_SERDES_CTRL_LADJ_2_SHIFT) |
2446 (0x1 << ENET_SERDES_CTRL_LADJ_3_SHIFT));
2447 test_cfg_val = 0;
2448
2449 if (lp->loopback_mode == LOOPBACK_PHY) {
2450 test_cfg_val |= ((ENET_TEST_MD_PAD_LOOPBACK <<
2451 ENET_SERDES_TEST_MD_0_SHIFT) |
2452 (ENET_TEST_MD_PAD_LOOPBACK <<
2453 ENET_SERDES_TEST_MD_1_SHIFT) |
2454 (ENET_TEST_MD_PAD_LOOPBACK <<
2455 ENET_SERDES_TEST_MD_2_SHIFT) |
2456 (ENET_TEST_MD_PAD_LOOPBACK <<
2457 ENET_SERDES_TEST_MD_3_SHIFT));
2458 }
2459
2460 esr_reset(np);
2461 nw64(pll_cfg, ENET_SERDES_PLL_FBDIV2);
2462 nw64(ctrl_reg, ctrl_val);
2463 nw64(test_cfg_reg, test_cfg_val);
2464
2465 /* Initialize all 4 lanes of the SERDES. */
2466 for (i = 0; i < 4; i++) {
2467 u32 rxtx_ctrl, glue0;
2468 int err;
2469
2470 err = esr_read_rxtx_ctrl(np, i, &rxtx_ctrl);
2471 if (err)
2472 return err;
2473 err = esr_read_glue0(np, i, &glue0);
2474 if (err)
2475 return err;
2476
2477 rxtx_ctrl &= ~(ESR_RXTX_CTRL_VMUXLO);
2478 rxtx_ctrl |= (ESR_RXTX_CTRL_ENSTRETCH |
2479 (2 << ESR_RXTX_CTRL_VMUXLO_SHIFT));
2480
2481 glue0 &= ~(ESR_GLUE_CTRL0_SRATE |
2482 ESR_GLUE_CTRL0_THCNT |
2483 ESR_GLUE_CTRL0_BLTIME);
2484 glue0 |= (ESR_GLUE_CTRL0_RXLOSENAB |
2485 (0xf << ESR_GLUE_CTRL0_SRATE_SHIFT) |
2486 (0xff << ESR_GLUE_CTRL0_THCNT_SHIFT) |
2487 (BLTIME_300_CYCLES <<
2488 ESR_GLUE_CTRL0_BLTIME_SHIFT));
2489
2490 err = esr_write_rxtx_ctrl(np, i, rxtx_ctrl);
2491 if (err)
2492 return err;
2493 err = esr_write_glue0(np, i, glue0);
2494 if (err)
2495 return err;
2496 }
2497
2498
2499 sig = nr64(ESR_INT_SIGNALS);
2500 switch (np->port) {
2501 case 0:
2502 mask = ESR_INT_SIGNALS_P0_BITS;
2503 val = (ESR_INT_SRDY0_P0 |
2504 ESR_INT_DET0_P0 |
2505 ESR_INT_XSRDY_P0 |
2506 ESR_INT_XDP_P0_CH3 |
2507 ESR_INT_XDP_P0_CH2 |
2508 ESR_INT_XDP_P0_CH1 |
2509 ESR_INT_XDP_P0_CH0);
2510 break;
2511
2512 case 1:
2513 mask = ESR_INT_SIGNALS_P1_BITS;
2514 val = (ESR_INT_SRDY0_P1 |
2515 ESR_INT_DET0_P1 |
2516 ESR_INT_XSRDY_P1 |
2517 ESR_INT_XDP_P1_CH3 |
2518 ESR_INT_XDP_P1_CH2 |
2519 ESR_INT_XDP_P1_CH1 |
2520 ESR_INT_XDP_P1_CH0);
2521 break;
2522
2523 default:
2524 return -EINVAL;
2525 }
2526
2527 if ((sig & mask) != val) {
2528 int err;
2529 err = serdes_init_1g_serdes(np);
2530 if (!err) {
2531 np->flags &= ~NIU_FLAGS_10G;
2532 np->mac_xcvr = MAC_XCVR_PCS;
2533 } else {
2534 dev_err(np->device, PFX "Port %u 10G/1G SERDES Link Failed \n",
2535 np->port);
2536 return -ENODEV;
2537 }
2538 }
2539
2540 return 0;
2541 }
2542
2543 static int niu_determine_phy_disposition(struct niu *np)
2544 {
2545 struct niu_parent *parent = np->parent;
2546 u8 plat_type = parent->plat_type;
2547 const struct niu_phy_template *tp;
2548 u32 phy_addr_off = 0;
2549
2550 if (plat_type == PLAT_TYPE_NIU) {
2551 switch (np->flags &
2552 (NIU_FLAGS_10G |
2553 NIU_FLAGS_FIBER |
2554 NIU_FLAGS_XCVR_SERDES)) {
2555 case NIU_FLAGS_10G | NIU_FLAGS_XCVR_SERDES:
2556 /* 10G Serdes */
2557 tp = &phy_template_niu_10g_serdes;
2558 break;
2559 case NIU_FLAGS_XCVR_SERDES:
2560 /* 1G Serdes */
2561 tp = &phy_template_niu_1g_serdes;
2562 break;
2563 case NIU_FLAGS_10G | NIU_FLAGS_FIBER:
2564 /* 10G Fiber */
2565 default:
2566 if (np->flags & NIU_FLAGS_HOTPLUG_PHY) {
2567 tp = &phy_template_niu_10g_hotplug;
2568 if (np->port == 0)
2569 phy_addr_off = 8;
2570 if (np->port == 1)
2571 phy_addr_off = 12;
2572 } else {
2573 tp = &phy_template_niu_10g_fiber;
2574 phy_addr_off += np->port;
2575 }
2576 break;
2577 }
2578 } else {
2579 switch (np->flags &
2580 (NIU_FLAGS_10G |
2581 NIU_FLAGS_FIBER |
2582 NIU_FLAGS_XCVR_SERDES)) {
2583 case 0:
2584 /* 1G copper */
2585 tp = &phy_template_1g_copper;
2586 if (plat_type == PLAT_TYPE_VF_P0)
2587 phy_addr_off = 10;
2588 else if (plat_type == PLAT_TYPE_VF_P1)
2589 phy_addr_off = 26;
2590
2591 phy_addr_off += (np->port ^ 0x3);
2592 break;
2593
2594 case NIU_FLAGS_10G:
2595 /* 10G copper */
2596 tp = &phy_template_10g_copper;
2597 break;
2598
2599 case NIU_FLAGS_FIBER:
2600 /* 1G fiber */
2601 tp = &phy_template_1g_fiber;
2602 break;
2603
2604 case NIU_FLAGS_10G | NIU_FLAGS_FIBER:
2605 /* 10G fiber */
2606 tp = &phy_template_10g_fiber;
2607 if (plat_type == PLAT_TYPE_VF_P0 ||
2608 plat_type == PLAT_TYPE_VF_P1)
2609 phy_addr_off = 8;
2610 phy_addr_off += np->port;
2611 if (np->flags & NIU_FLAGS_HOTPLUG_PHY) {
2612 tp = &phy_template_10g_fiber_hotplug;
2613 if (np->port == 0)
2614 phy_addr_off = 8;
2615 if (np->port == 1)
2616 phy_addr_off = 12;
2617 }
2618 break;
2619
2620 case NIU_FLAGS_10G | NIU_FLAGS_XCVR_SERDES:
2621 case NIU_FLAGS_XCVR_SERDES | NIU_FLAGS_FIBER:
2622 case NIU_FLAGS_XCVR_SERDES:
2623 switch(np->port) {
2624 case 0:
2625 case 1:
2626 tp = &phy_template_10g_serdes;
2627 break;
2628 case 2:
2629 case 3:
2630 tp = &phy_template_1g_rgmii;
2631 break;
2632 default:
2633 return -EINVAL;
2634 break;
2635 }
2636 phy_addr_off = niu_atca_port_num[np->port];
2637 break;
2638
2639 default:
2640 return -EINVAL;
2641 }
2642 }
2643
2644 np->phy_ops = tp->ops;
2645 np->phy_addr = tp->phy_addr_base + phy_addr_off;
2646
2647 return 0;
2648 }
2649
2650 static int niu_init_link(struct niu *np)
2651 {
2652 struct niu_parent *parent = np->parent;
2653 int err, ignore;
2654
2655 if (parent->plat_type == PLAT_TYPE_NIU) {
2656 err = niu_xcvr_init(np);
2657 if (err)
2658 return err;
2659 msleep(200);
2660 }
2661 err = niu_serdes_init(np);
2662 if (err && !(np->flags & NIU_FLAGS_HOTPLUG_PHY))
2663 return err;
2664 msleep(200);
2665 err = niu_xcvr_init(np);
2666 if (!err || (np->flags & NIU_FLAGS_HOTPLUG_PHY))
2667 niu_link_status(np, &ignore);
2668 return 0;
2669 }
2670
2671 static void niu_set_primary_mac(struct niu *np, unsigned char *addr)
2672 {
2673 u16 reg0 = addr[4] << 8 | addr[5];
2674 u16 reg1 = addr[2] << 8 | addr[3];
2675 u16 reg2 = addr[0] << 8 | addr[1];
2676
2677 if (np->flags & NIU_FLAGS_XMAC) {
2678 nw64_mac(XMAC_ADDR0, reg0);
2679 nw64_mac(XMAC_ADDR1, reg1);
2680 nw64_mac(XMAC_ADDR2, reg2);
2681 } else {
2682 nw64_mac(BMAC_ADDR0, reg0);
2683 nw64_mac(BMAC_ADDR1, reg1);
2684 nw64_mac(BMAC_ADDR2, reg2);
2685 }
2686 }
2687
2688 static int niu_num_alt_addr(struct niu *np)
2689 {
2690 if (np->flags & NIU_FLAGS_XMAC)
2691 return XMAC_NUM_ALT_ADDR;
2692 else
2693 return BMAC_NUM_ALT_ADDR;
2694 }
2695
2696 static int niu_set_alt_mac(struct niu *np, int index, unsigned char *addr)
2697 {
2698 u16 reg0 = addr[4] << 8 | addr[5];
2699 u16 reg1 = addr[2] << 8 | addr[3];
2700 u16 reg2 = addr[0] << 8 | addr[1];
2701
2702 if (index >= niu_num_alt_addr(np))
2703 return -EINVAL;
2704
2705 if (np->flags & NIU_FLAGS_XMAC) {
2706 nw64_mac(XMAC_ALT_ADDR0(index), reg0);
2707 nw64_mac(XMAC_ALT_ADDR1(index), reg1);
2708 nw64_mac(XMAC_ALT_ADDR2(index), reg2);
2709 } else {
2710 nw64_mac(BMAC_ALT_ADDR0(index), reg0);
2711 nw64_mac(BMAC_ALT_ADDR1(index), reg1);
2712 nw64_mac(BMAC_ALT_ADDR2(index), reg2);
2713 }
2714
2715 return 0;
2716 }
2717
2718 static int niu_enable_alt_mac(struct niu *np, int index, int on)
2719 {
2720 unsigned long reg;
2721 u64 val, mask;
2722
2723 if (index >= niu_num_alt_addr(np))
2724 return -EINVAL;
2725
2726 if (np->flags & NIU_FLAGS_XMAC) {
2727 reg = XMAC_ADDR_CMPEN;
2728 mask = 1 << index;
2729 } else {
2730 reg = BMAC_ADDR_CMPEN;
2731 mask = 1 << (index + 1);
2732 }
2733
2734 val = nr64_mac(reg);
2735 if (on)
2736 val |= mask;
2737 else
2738 val &= ~mask;
2739 nw64_mac(reg, val);
2740
2741 return 0;
2742 }
2743
2744 static void __set_rdc_table_num_hw(struct niu *np, unsigned long reg,
2745 int num, int mac_pref)
2746 {
2747 u64 val = nr64_mac(reg);
2748 val &= ~(HOST_INFO_MACRDCTBLN | HOST_INFO_MPR);
2749 val |= num;
2750 if (mac_pref)
2751 val |= HOST_INFO_MPR;
2752 nw64_mac(reg, val);
2753 }
2754
2755 static int __set_rdc_table_num(struct niu *np,
2756 int xmac_index, int bmac_index,
2757 int rdc_table_num, int mac_pref)
2758 {
2759 unsigned long reg;
2760
2761 if (rdc_table_num & ~HOST_INFO_MACRDCTBLN)
2762 return -EINVAL;
2763 if (np->flags & NIU_FLAGS_XMAC)
2764 reg = XMAC_HOST_INFO(xmac_index);
2765 else
2766 reg = BMAC_HOST_INFO(bmac_index);
2767 __set_rdc_table_num_hw(np, reg, rdc_table_num, mac_pref);
2768 return 0;
2769 }
2770
2771 static int niu_set_primary_mac_rdc_table(struct niu *np, int table_num,
2772 int mac_pref)
2773 {
2774 return __set_rdc_table_num(np, 17, 0, table_num, mac_pref);
2775 }
2776
2777 static int niu_set_multicast_mac_rdc_table(struct niu *np, int table_num,
2778 int mac_pref)
2779 {
2780 return __set_rdc_table_num(np, 16, 8, table_num, mac_pref);
2781 }
2782
2783 static int niu_set_alt_mac_rdc_table(struct niu *np, int idx,
2784 int table_num, int mac_pref)
2785 {
2786 if (idx >= niu_num_alt_addr(np))
2787 return -EINVAL;
2788 return __set_rdc_table_num(np, idx, idx + 1, table_num, mac_pref);
2789 }
2790
2791 static u64 vlan_entry_set_parity(u64 reg_val)
2792 {
2793 u64 port01_mask;
2794 u64 port23_mask;
2795
2796 port01_mask = 0x00ff;
2797 port23_mask = 0xff00;
2798
2799 if (hweight64(reg_val & port01_mask) & 1)
2800 reg_val |= ENET_VLAN_TBL_PARITY0;
2801 else
2802 reg_val &= ~ENET_VLAN_TBL_PARITY0;
2803
2804 if (hweight64(reg_val & port23_mask) & 1)
2805 reg_val |= ENET_VLAN_TBL_PARITY1;
2806 else
2807 reg_val &= ~ENET_VLAN_TBL_PARITY1;
2808
2809 return reg_val;
2810 }
2811
2812 static void vlan_tbl_write(struct niu *np, unsigned long index,
2813 int port, int vpr, int rdc_table)
2814 {
2815 u64 reg_val = nr64(ENET_VLAN_TBL(index));
2816
2817 reg_val &= ~((ENET_VLAN_TBL_VPR |
2818 ENET_VLAN_TBL_VLANRDCTBLN) <<
2819 ENET_VLAN_TBL_SHIFT(port));
2820 if (vpr)
2821 reg_val |= (ENET_VLAN_TBL_VPR <<
2822 ENET_VLAN_TBL_SHIFT(port));
2823 reg_val |= (rdc_table << ENET_VLAN_TBL_SHIFT(port));
2824
2825 reg_val = vlan_entry_set_parity(reg_val);
2826
2827 nw64(ENET_VLAN_TBL(index), reg_val);
2828 }
2829
2830 static void vlan_tbl_clear(struct niu *np)
2831 {
2832 int i;
2833
2834 for (i = 0; i < ENET_VLAN_TBL_NUM_ENTRIES; i++)
2835 nw64(ENET_VLAN_TBL(i), 0);
2836 }
2837
2838 static int tcam_wait_bit(struct niu *np, u64 bit)
2839 {
2840 int limit = 1000;
2841
2842 while (--limit > 0) {
2843 if (nr64(TCAM_CTL) & bit)
2844 break;
2845 udelay(1);
2846 }
2847 if (limit <= 0)
2848 return -ENODEV;
2849
2850 return 0;
2851 }
2852
2853 static int tcam_flush(struct niu *np, int index)
2854 {
2855 nw64(TCAM_KEY_0, 0x00);
2856 nw64(TCAM_KEY_MASK_0, 0xff);
2857 nw64(TCAM_CTL, (TCAM_CTL_RWC_TCAM_WRITE | index));
2858
2859 return tcam_wait_bit(np, TCAM_CTL_STAT);
2860 }
2861
2862 #if 0
2863 static int tcam_read(struct niu *np, int index,
2864 u64 *key, u64 *mask)
2865 {
2866 int err;
2867
2868 nw64(TCAM_CTL, (TCAM_CTL_RWC_TCAM_READ | index));
2869 err = tcam_wait_bit(np, TCAM_CTL_STAT);
2870 if (!err) {
2871 key[0] = nr64(TCAM_KEY_0);
2872 key[1] = nr64(TCAM_KEY_1);
2873 key[2] = nr64(TCAM_KEY_2);
2874 key[3] = nr64(TCAM_KEY_3);
2875 mask[0] = nr64(TCAM_KEY_MASK_0);
2876 mask[1] = nr64(TCAM_KEY_MASK_1);
2877 mask[2] = nr64(TCAM_KEY_MASK_2);
2878 mask[3] = nr64(TCAM_KEY_MASK_3);
2879 }
2880 return err;
2881 }
2882 #endif
2883
2884 static int tcam_write(struct niu *np, int index,
2885 u64 *key, u64 *mask)
2886 {
2887 nw64(TCAM_KEY_0, key[0]);
2888 nw64(TCAM_KEY_1, key[1]);
2889 nw64(TCAM_KEY_2, key[2]);
2890 nw64(TCAM_KEY_3, key[3]);
2891 nw64(TCAM_KEY_MASK_0, mask[0]);
2892 nw64(TCAM_KEY_MASK_1, mask[1]);
2893 nw64(TCAM_KEY_MASK_2, mask[2]);
2894 nw64(TCAM_KEY_MASK_3, mask[3]);
2895 nw64(TCAM_CTL, (TCAM_CTL_RWC_TCAM_WRITE | index));
2896
2897 return tcam_wait_bit(np, TCAM_CTL_STAT);
2898 }
2899
2900 #if 0
2901 static int tcam_assoc_read(struct niu *np, int index, u64 *data)
2902 {
2903 int err;
2904
2905 nw64(TCAM_CTL, (TCAM_CTL_RWC_RAM_READ | index));
2906 err = tcam_wait_bit(np, TCAM_CTL_STAT);
2907 if (!err)
2908 *data = nr64(TCAM_KEY_1);
2909
2910 return err;
2911 }
2912 #endif
2913
2914 static int tcam_assoc_write(struct niu *np, int index, u64 assoc_data)
2915 {
2916 nw64(TCAM_KEY_1, assoc_data);
2917 nw64(TCAM_CTL, (TCAM_CTL_RWC_RAM_WRITE | index));
2918
2919 return tcam_wait_bit(np, TCAM_CTL_STAT);
2920 }
2921
2922 static void tcam_enable(struct niu *np, int on)
2923 {
2924 u64 val = nr64(FFLP_CFG_1);
2925
2926 if (on)
2927 val &= ~FFLP_CFG_1_TCAM_DIS;
2928 else
2929 val |= FFLP_CFG_1_TCAM_DIS;
2930 nw64(FFLP_CFG_1, val);
2931 }
2932
2933 static void tcam_set_lat_and_ratio(struct niu *np, u64 latency, u64 ratio)
2934 {
2935 u64 val = nr64(FFLP_CFG_1);
2936
2937 val &= ~(FFLP_CFG_1_FFLPINITDONE |
2938 FFLP_CFG_1_CAMLAT |
2939 FFLP_CFG_1_CAMRATIO);
2940 val |= (latency << FFLP_CFG_1_CAMLAT_SHIFT);
2941 val |= (ratio << FFLP_CFG_1_CAMRATIO_SHIFT);
2942 nw64(FFLP_CFG_1, val);
2943
2944 val = nr64(FFLP_CFG_1);
2945 val |= FFLP_CFG_1_FFLPINITDONE;
2946 nw64(FFLP_CFG_1, val);
2947 }
2948
2949 static int tcam_user_eth_class_enable(struct niu *np, unsigned long class,
2950 int on)
2951 {
2952 unsigned long reg;
2953 u64 val;
2954
2955 if (class < CLASS_CODE_ETHERTYPE1 ||
2956 class > CLASS_CODE_ETHERTYPE2)
2957 return -EINVAL;
2958
2959 reg = L2_CLS(class - CLASS_CODE_ETHERTYPE1);
2960 val = nr64(reg);
2961 if (on)
2962 val |= L2_CLS_VLD;
2963 else
2964 val &= ~L2_CLS_VLD;
2965 nw64(reg, val);
2966
2967 return 0;
2968 }
2969
2970 #if 0
2971 static int tcam_user_eth_class_set(struct niu *np, unsigned long class,
2972 u64 ether_type)
2973 {
2974 unsigned long reg;
2975 u64 val;
2976
2977 if (class < CLASS_CODE_ETHERTYPE1 ||
2978 class > CLASS_CODE_ETHERTYPE2 ||
2979 (ether_type & ~(u64)0xffff) != 0)
2980 return -EINVAL;
2981
2982 reg = L2_CLS(class - CLASS_CODE_ETHERTYPE1);
2983 val = nr64(reg);
2984 val &= ~L2_CLS_ETYPE;
2985 val |= (ether_type << L2_CLS_ETYPE_SHIFT);
2986 nw64(reg, val);
2987
2988 return 0;
2989 }
2990 #endif
2991
2992 static int tcam_user_ip_class_enable(struct niu *np, unsigned long class,
2993 int on)
2994 {
2995 unsigned long reg;
2996 u64 val;
2997
2998 if (class < CLASS_CODE_USER_PROG1 ||
2999 class > CLASS_CODE_USER_PROG4)
3000 return -EINVAL;
3001
3002 reg = L3_CLS(class - CLASS_CODE_USER_PROG1);
3003 val = nr64(reg);
3004 if (on)
3005 val |= L3_CLS_VALID;
3006 else
3007 val &= ~L3_CLS_VALID;
3008 nw64(reg, val);
3009
3010 return 0;
3011 }
3012
3013 static int tcam_user_ip_class_set(struct niu *np, unsigned long class,
3014 int ipv6, u64 protocol_id,
3015 u64 tos_mask, u64 tos_val)
3016 {
3017 unsigned long reg;
3018 u64 val;
3019
3020 if (class < CLASS_CODE_USER_PROG1 ||
3021 class > CLASS_CODE_USER_PROG4 ||
3022 (protocol_id & ~(u64)0xff) != 0 ||
3023 (tos_mask & ~(u64)0xff) != 0 ||
3024 (tos_val & ~(u64)0xff) != 0)
3025 return -EINVAL;
3026
3027 reg = L3_CLS(class - CLASS_CODE_USER_PROG1);
3028 val = nr64(reg);
3029 val &= ~(L3_CLS_IPVER | L3_CLS_PID |
3030 L3_CLS_TOSMASK | L3_CLS_TOS);
3031 if (ipv6)
3032 val |= L3_CLS_IPVER;
3033 val |= (protocol_id << L3_CLS_PID_SHIFT);
3034 val |= (tos_mask << L3_CLS_TOSMASK_SHIFT);
3035 val |= (tos_val << L3_CLS_TOS_SHIFT);
3036 nw64(reg, val);
3037
3038 return 0;
3039 }
3040
3041 static int tcam_early_init(struct niu *np)
3042 {
3043 unsigned long i;
3044 int err;
3045
3046 tcam_enable(np, 0);
3047 tcam_set_lat_and_ratio(np,
3048 DEFAULT_TCAM_LATENCY,
3049 DEFAULT_TCAM_ACCESS_RATIO);
3050 for (i = CLASS_CODE_ETHERTYPE1; i <= CLASS_CODE_ETHERTYPE2; i++) {
3051 err = tcam_user_eth_class_enable(np, i, 0);
3052 if (err)
3053 return err;
3054 }
3055 for (i = CLASS_CODE_USER_PROG1; i <= CLASS_CODE_USER_PROG4; i++) {
3056 err = tcam_user_ip_class_enable(np, i, 0);
3057 if (err)
3058 return err;
3059 }
3060
3061 return 0;
3062 }
3063
3064 static int tcam_flush_all(struct niu *np)
3065 {
3066 unsigned long i;
3067
3068 for (i = 0; i < np->parent->tcam_num_entries; i++) {
3069 int err = tcam_flush(np, i);
3070 if (err)
3071 return err;
3072 }
3073 return 0;
3074 }
3075
3076 static u64 hash_addr_regval(unsigned long index, unsigned long num_entries)
3077 {
3078 return ((u64)index | (num_entries == 1 ?
3079 HASH_TBL_ADDR_AUTOINC : 0));
3080 }
3081
3082 #if 0
3083 static int hash_read(struct niu *np, unsigned long partition,
3084 unsigned long index, unsigned long num_entries,
3085 u64 *data)
3086 {
3087 u64 val = hash_addr_regval(index, num_entries);
3088 unsigned long i;
3089
3090 if (partition >= FCRAM_NUM_PARTITIONS ||
3091 index + num_entries > FCRAM_SIZE)
3092 return -EINVAL;
3093
3094 nw64(HASH_TBL_ADDR(partition), val);
3095 for (i = 0; i < num_entries; i++)
3096 data[i] = nr64(HASH_TBL_DATA(partition));
3097
3098 return 0;
3099 }
3100 #endif
3101
3102 static int hash_write(struct niu *np, unsigned long partition,
3103 unsigned long index, unsigned long num_entries,
3104 u64 *data)
3105 {
3106 u64 val = hash_addr_regval(index, num_entries);
3107 unsigned long i;
3108
3109 if (partition >= FCRAM_NUM_PARTITIONS ||
3110 index + (num_entries * 8) > FCRAM_SIZE)
3111 return -EINVAL;
3112
3113 nw64(HASH_TBL_ADDR(partition), val);
3114 for (i = 0; i < num_entries; i++)
3115 nw64(HASH_TBL_DATA(partition), data[i]);
3116
3117 return 0;
3118 }
3119
3120 static void fflp_reset(struct niu *np)
3121 {
3122 u64 val;
3123
3124 nw64(FFLP_CFG_1, FFLP_CFG_1_PIO_FIO_RST);
3125 udelay(10);
3126 nw64(FFLP_CFG_1, 0);
3127
3128 val = FFLP_CFG_1_FCRAMOUTDR_NORMAL | FFLP_CFG_1_FFLPINITDONE;
3129 nw64(FFLP_CFG_1, val);
3130 }
3131
3132 static void fflp_set_timings(struct niu *np)
3133 {
3134 u64 val = nr64(FFLP_CFG_1);
3135
3136 val &= ~FFLP_CFG_1_FFLPINITDONE;
3137 val |= (DEFAULT_FCRAMRATIO << FFLP_CFG_1_FCRAMRATIO_SHIFT);
3138 nw64(FFLP_CFG_1, val);
3139
3140 val = nr64(FFLP_CFG_1);
3141 val |= FFLP_CFG_1_FFLPINITDONE;
3142 nw64(FFLP_CFG_1, val);
3143
3144 val = nr64(FCRAM_REF_TMR);
3145 val &= ~(FCRAM_REF_TMR_MAX | FCRAM_REF_TMR_MIN);
3146 val |= (DEFAULT_FCRAM_REFRESH_MAX << FCRAM_REF_TMR_MAX_SHIFT);
3147 val |= (DEFAULT_FCRAM_REFRESH_MIN << FCRAM_REF_TMR_MIN_SHIFT);
3148 nw64(FCRAM_REF_TMR, val);
3149 }
3150
3151 static int fflp_set_partition(struct niu *np, u64 partition,
3152 u64 mask, u64 base, int enable)
3153 {
3154 unsigned long reg;
3155 u64 val;
3156
3157 if (partition >= FCRAM_NUM_PARTITIONS ||
3158 (mask & ~(u64)0x1f) != 0 ||
3159 (base & ~(u64)0x1f) != 0)
3160 return -EINVAL;
3161
3162 reg = FLW_PRT_SEL(partition);
3163
3164 val = nr64(reg);
3165 val &= ~(FLW_PRT_SEL_EXT | FLW_PRT_SEL_MASK | FLW_PRT_SEL_BASE);
3166 val |= (mask << FLW_PRT_SEL_MASK_SHIFT);
3167 val |= (base << FLW_PRT_SEL_BASE_SHIFT);
3168 if (enable)
3169 val |= FLW_PRT_SEL_EXT;
3170 nw64(reg, val);
3171
3172 return 0;
3173 }
3174
3175 static int fflp_disable_all_partitions(struct niu *np)
3176 {
3177 unsigned long i;
3178
3179 for (i = 0; i < FCRAM_NUM_PARTITIONS; i++) {
3180 int err = fflp_set_partition(np, 0, 0, 0, 0);
3181 if (err)
3182 return err;
3183 }
3184 return 0;
3185 }
3186
3187 static void fflp_llcsnap_enable(struct niu *np, int on)
3188 {
3189 u64 val = nr64(FFLP_CFG_1);
3190
3191 if (on)
3192 val |= FFLP_CFG_1_LLCSNAP;
3193 else
3194 val &= ~FFLP_CFG_1_LLCSNAP;
3195 nw64(FFLP_CFG_1, val);
3196 }
3197
3198 static void fflp_errors_enable(struct niu *np, int on)
3199 {
3200 u64 val = nr64(FFLP_CFG_1);
3201
3202 if (on)
3203 val &= ~FFLP_CFG_1_ERRORDIS;
3204 else
3205 val |= FFLP_CFG_1_ERRORDIS;
3206 nw64(FFLP_CFG_1, val);
3207 }
3208
3209 static int fflp_hash_clear(struct niu *np)
3210 {
3211 struct fcram_hash_ipv4 ent;
3212 unsigned long i;
3213
3214 /* IPV4 hash entry with valid bit clear, rest is don't care. */
3215 memset(&ent, 0, sizeof(ent));
3216 ent.header = HASH_HEADER_EXT;
3217
3218 for (i = 0; i < FCRAM_SIZE; i += sizeof(ent)) {
3219 int err = hash_write(np, 0, i, 1, (u64 *) &ent);
3220 if (err)
3221 return err;
3222 }
3223 return 0;
3224 }
3225
3226 static int fflp_early_init(struct niu *np)
3227 {
3228 struct niu_parent *parent;
3229 unsigned long flags;
3230 int err;
3231
3232 niu_lock_parent(np, flags);
3233
3234 parent = np->parent;
3235 err = 0;
3236 if (!(parent->flags & PARENT_FLGS_CLS_HWINIT)) {
3237 niudbg(PROBE, "fflp_early_init: Initting hw on port %u\n",
3238 np->port);
3239 if (np->parent->plat_type != PLAT_TYPE_NIU) {
3240 fflp_reset(np);
3241 fflp_set_timings(np);
3242 err = fflp_disable_all_partitions(np);
3243 if (err) {
3244 niudbg(PROBE, "fflp_disable_all_partitions "
3245 "failed, err=%d\n", err);
3246 goto out;
3247 }
3248 }
3249
3250 err = tcam_early_init(np);
3251 if (err) {
3252 niudbg(PROBE, "tcam_early_init failed, err=%d\n",
3253 err);
3254 goto out;
3255 }
3256 fflp_llcsnap_enable(np, 1);
3257 fflp_errors_enable(np, 0);
3258 nw64(H1POLY, 0);
3259 nw64(H2POLY, 0);
3260
3261 err = tcam_flush_all(np);
3262 if (err) {
3263 niudbg(PROBE, "tcam_flush_all failed, err=%d\n",
3264 err);
3265 goto out;
3266 }
3267 if (np->parent->plat_type != PLAT_TYPE_NIU) {
3268 err = fflp_hash_clear(np);
3269 if (err) {
3270 niudbg(PROBE, "fflp_hash_clear failed, "
3271 "err=%d\n", err);
3272 goto out;
3273 }
3274 }
3275
3276 vlan_tbl_clear(np);
3277
3278 niudbg(PROBE, "fflp_early_init: Success\n");
3279 parent->flags |= PARENT_FLGS_CLS_HWINIT;
3280 }
3281 out:
3282 niu_unlock_parent(np, flags);
3283 return err;
3284 }
3285
3286 static int niu_set_flow_key(struct niu *np, unsigned long class_code, u64 key)
3287 {
3288 if (class_code < CLASS_CODE_USER_PROG1 ||
3289 class_code > CLASS_CODE_SCTP_IPV6)
3290 return -EINVAL;
3291
3292 nw64(FLOW_KEY(class_code - CLASS_CODE_USER_PROG1), key);
3293 return 0;
3294 }
3295
3296 static int niu_set_tcam_key(struct niu *np, unsigned long class_code, u64 key)
3297 {
3298 if (class_code < CLASS_CODE_USER_PROG1 ||
3299 class_code > CLASS_CODE_SCTP_IPV6)
3300 return -EINVAL;
3301
3302 nw64(TCAM_KEY(class_code - CLASS_CODE_USER_PROG1), key);
3303 return 0;
3304 }
3305
3306 /* Entries for the ports are interleaved in the TCAM */
3307 static u16 tcam_get_index(struct niu *np, u16 idx)
3308 {
3309 /* One entry reserved for IP fragment rule */
3310 if (idx >= (np->clas.tcam_sz - 1))
3311 idx = 0;
3312 return (np->clas.tcam_top + ((idx+1) * np->parent->num_ports));
3313 }
3314
3315 static u16 tcam_get_size(struct niu *np)
3316 {
3317 /* One entry reserved for IP fragment rule */
3318 return np->clas.tcam_sz - 1;
3319 }
3320
3321 static u16 tcam_get_valid_entry_cnt(struct niu *np)
3322 {
3323 /* One entry reserved for IP fragment rule */
3324 return np->clas.tcam_valid_entries - 1;
3325 }
3326
3327 static void niu_rx_skb_append(struct sk_buff *skb, struct page *page,
3328 u32 offset, u32 size)
3329 {
3330 int i = skb_shinfo(skb)->nr_frags;
3331 skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
3332
3333 frag->page = page;
3334 frag->page_offset = offset;
3335 frag->size = size;
3336
3337 skb->len += size;
3338 skb->data_len += size;
3339 skb->truesize += size;
3340
3341 skb_shinfo(skb)->nr_frags = i + 1;
3342 }
3343
3344 static unsigned int niu_hash_rxaddr(struct rx_ring_info *rp, u64 a)
3345 {
3346 a >>= PAGE_SHIFT;
3347 a ^= (a >> ilog2(MAX_RBR_RING_SIZE));
3348
3349 return (a & (MAX_RBR_RING_SIZE - 1));
3350 }
3351
3352 static struct page *niu_find_rxpage(struct rx_ring_info *rp, u64 addr,
3353 struct page ***link)
3354 {
3355 unsigned int h = niu_hash_rxaddr(rp, addr);
3356 struct page *p, **pp;
3357
3358 addr &= PAGE_MASK;
3359 pp = &rp->rxhash[h];
3360 for (; (p = *pp) != NULL; pp = (struct page **) &p->mapping) {
3361 if (p->index == addr) {
3362 *link = pp;
3363 break;
3364 }
3365 }
3366
3367 return p;
3368 }
3369
3370 static void niu_hash_page(struct rx_ring_info *rp, struct page *page, u64 base)
3371 {
3372 unsigned int h = niu_hash_rxaddr(rp, base);
3373
3374 page->index = base;
3375 page->mapping = (struct address_space *) rp->rxhash[h];
3376 rp->rxhash[h] = page;
3377 }
3378
3379 static int niu_rbr_add_page(struct niu *np, struct rx_ring_info *rp,
3380 gfp_t mask, int start_index)
3381 {
3382 struct page *page;
3383 u64 addr;
3384 int i;
3385
3386 page = alloc_page(mask);
3387 if (!page)
3388 return -ENOMEM;
3389
3390 addr = np->ops->map_page(np->device, page, 0,
3391 PAGE_SIZE, DMA_FROM_DEVICE);
3392
3393 niu_hash_page(rp, page, addr);
3394 if (rp->rbr_blocks_per_page > 1)
3395 atomic_add(rp->rbr_blocks_per_page - 1,
3396 &compound_head(page)->_count);
3397
3398 for (i = 0; i < rp->rbr_blocks_per_page; i++) {
3399 __le32 *rbr = &rp->rbr[start_index + i];
3400
3401 *rbr = cpu_to_le32(addr >> RBR_DESCR_ADDR_SHIFT);
3402 addr += rp->rbr_block_size;
3403 }
3404
3405 return 0;
3406 }
3407
3408 static void niu_rbr_refill(struct niu *np, struct rx_ring_info *rp, gfp_t mask)
3409 {
3410 int index = rp->rbr_index;
3411
3412 rp->rbr_pending++;
3413 if ((rp->rbr_pending % rp->rbr_blocks_per_page) == 0) {
3414 int err = niu_rbr_add_page(np, rp, mask, index);
3415
3416 if (unlikely(err)) {
3417 rp->rbr_pending--;
3418 return;
3419 }
3420
3421 rp->rbr_index += rp->rbr_blocks_per_page;
3422 BUG_ON(rp->rbr_index > rp->rbr_table_size);
3423 if (rp->rbr_index == rp->rbr_table_size)
3424 rp->rbr_index = 0;
3425
3426 if (rp->rbr_pending >= rp->rbr_kick_thresh) {
3427 nw64(RBR_KICK(rp->rx_channel), rp->rbr_pending);
3428 rp->rbr_pending = 0;
3429 }
3430 }
3431 }
3432
3433 static int niu_rx_pkt_ignore(struct niu *np, struct rx_ring_info *rp)
3434 {
3435 unsigned int index = rp->rcr_index;
3436 int num_rcr = 0;
3437
3438 rp->rx_dropped++;
3439 while (1) {
3440 struct page *page, **link;
3441 u64 addr, val;
3442 u32 rcr_size;
3443
3444 num_rcr++;
3445
3446 val = le64_to_cpup(&rp->rcr[index]);
3447 addr = (val & RCR_ENTRY_PKT_BUF_ADDR) <<
3448 RCR_ENTRY_PKT_BUF_ADDR_SHIFT;
3449 page = niu_find_rxpage(rp, addr, &link);
3450
3451 rcr_size = rp->rbr_sizes[(val & RCR_ENTRY_PKTBUFSZ) >>
3452 RCR_ENTRY_PKTBUFSZ_SHIFT];
3453 if ((page->index + PAGE_SIZE) - rcr_size == addr) {
3454 *link = (struct page *) page->mapping;
3455 np->ops->unmap_page(np->device, page->index,
3456 PAGE_SIZE, DMA_FROM_DEVICE);
3457 page->index = 0;
3458 page->mapping = NULL;
3459 __free_page(page);
3460 rp->rbr_refill_pending++;
3461 }
3462
3463 index = NEXT_RCR(rp, index);
3464 if (!(val & RCR_ENTRY_MULTI))
3465 break;
3466
3467 }
3468 rp->rcr_index = index;
3469
3470 return num_rcr;
3471 }
3472
3473 static int niu_process_rx_pkt(struct napi_struct *napi, struct niu *np,
3474 struct rx_ring_info *rp)
3475 {
3476 unsigned int index = rp->rcr_index;
3477 struct sk_buff *skb;
3478 int len, num_rcr;
3479
3480 skb = netdev_alloc_skb(np->dev, RX_SKB_ALLOC_SIZE);
3481 if (unlikely(!skb))
3482 return niu_rx_pkt_ignore(np, rp);
3483
3484 num_rcr = 0;
3485 while (1) {
3486 struct page *page, **link;
3487 u32 rcr_size, append_size;
3488 u64 addr, val, off;
3489
3490 num_rcr++;
3491
3492 val = le64_to_cpup(&rp->rcr[index]);
3493
3494 len = (val & RCR_ENTRY_L2_LEN) >>
3495 RCR_ENTRY_L2_LEN_SHIFT;
3496 len -= ETH_FCS_LEN;
3497
3498 addr = (val & RCR_ENTRY_PKT_BUF_ADDR) <<
3499 RCR_ENTRY_PKT_BUF_ADDR_SHIFT;
3500 page = niu_find_rxpage(rp, addr, &link);
3501
3502 rcr_size = rp->rbr_sizes[(val & RCR_ENTRY_PKTBUFSZ) >>
3503 RCR_ENTRY_PKTBUFSZ_SHIFT];
3504
3505 off = addr & ~PAGE_MASK;
3506 append_size = rcr_size;
3507 if (num_rcr == 1) {
3508 int ptype;
3509
3510 off += 2;
3511 append_size -= 2;
3512
3513 ptype = (val >> RCR_ENTRY_PKT_TYPE_SHIFT);
3514 if ((ptype == RCR_PKT_TYPE_TCP ||
3515 ptype == RCR_PKT_TYPE_UDP) &&
3516 !(val & (RCR_ENTRY_NOPORT |
3517 RCR_ENTRY_ERROR)))
3518 skb->ip_summed = CHECKSUM_UNNECESSARY;
3519 else
3520 skb->ip_summed = CHECKSUM_NONE;
3521 }
3522 if (!(val & RCR_ENTRY_MULTI))
3523 append_size = len - skb->len;
3524
3525 niu_rx_skb_append(skb, page, off, append_size);
3526 if ((page->index + rp->rbr_block_size) - rcr_size == addr) {
3527 *link = (struct page *) page->mapping;
3528 np->ops->unmap_page(np->device, page->index,
3529 PAGE_SIZE, DMA_FROM_DEVICE);
3530 page->index = 0;
3531 page->mapping = NULL;
3532 rp->rbr_refill_pending++;
3533 } else
3534 get_page(page);
3535
3536 index = NEXT_RCR(rp, index);
3537 if (!(val & RCR_ENTRY_MULTI))
3538 break;
3539
3540 }
3541 rp->rcr_index = index;
3542
3543 skb_reserve(skb, NET_IP_ALIGN);
3544 __pskb_pull_tail(skb, min(len, VLAN_ETH_HLEN));
3545
3546 rp->rx_packets++;
3547 rp->rx_bytes += skb->len;
3548
3549 skb->protocol = eth_type_trans(skb, np->dev);
3550 skb_record_rx_queue(skb, rp->rx_channel);
3551 napi_gro_receive(napi, skb);
3552
3553 return num_rcr;
3554 }
3555
3556 static int niu_rbr_fill(struct niu *np, struct rx_ring_info *rp, gfp_t mask)
3557 {
3558 int blocks_per_page = rp->rbr_blocks_per_page;
3559 int err, index = rp->rbr_index;
3560
3561 err = 0;
3562 while (index < (rp->rbr_table_size - blocks_per_page)) {
3563 err = niu_rbr_add_page(np, rp, mask, index);
3564 if (err)
3565 break;
3566
3567 index += blocks_per_page;
3568 }
3569
3570 rp->rbr_index = index;
3571 return err;
3572 }
3573
3574 static void niu_rbr_free(struct niu *np, struct rx_ring_info *rp)
3575 {
3576 int i;
3577
3578 for (i = 0; i < MAX_RBR_RING_SIZE; i++) {
3579 struct page *page;
3580
3581 page = rp->rxhash[i];
3582 while (page) {
3583 struct page *next = (struct page *) page->mapping;
3584 u64 base = page->index;
3585
3586 np->ops->unmap_page(np->device, base, PAGE_SIZE,
3587 DMA_FROM_DEVICE);
3588 page->index = 0;
3589 page->mapping = NULL;
3590
3591 __free_page(page);
3592
3593 page = next;
3594 }
3595 }
3596
3597 for (i = 0; i < rp->rbr_table_size; i++)
3598 rp->rbr[i] = cpu_to_le32(0);
3599 rp->rbr_index = 0;
3600 }
3601
3602 static int release_tx_packet(struct niu *np, struct tx_ring_info *rp, int idx)
3603 {
3604 struct tx_buff_info *tb = &rp->tx_buffs[idx];
3605 struct sk_buff *skb = tb->skb;
3606 struct tx_pkt_hdr *tp;
3607 u64 tx_flags;
3608 int i, len;
3609
3610 tp = (struct tx_pkt_hdr *) skb->data;
3611 tx_flags = le64_to_cpup(&tp->flags);
3612
3613 rp->tx_packets++;
3614 rp->tx_bytes += (((tx_flags & TXHDR_LEN) >> TXHDR_LEN_SHIFT) -
3615 ((tx_flags & TXHDR_PAD) / 2));
3616
3617 len = skb_headlen(skb);
3618 np->ops->unmap_single(np->device, tb->mapping,
3619 len, DMA_TO_DEVICE);
3620
3621 if (le64_to_cpu(rp->descr[idx]) & TX_DESC_MARK)
3622 rp->mark_pending--;
3623
3624 tb->skb = NULL;
3625 do {
3626 idx = NEXT_TX(rp, idx);
3627 len -= MAX_TX_DESC_LEN;
3628 } while (len > 0);
3629
3630 for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
3631 tb = &rp->tx_buffs[idx];
3632 BUG_ON(tb->skb != NULL);
3633 np->ops->unmap_page(np->device, tb->mapping,
3634 skb_shinfo(skb)->frags[i].size,
3635 DMA_TO_DEVICE);
3636 idx = NEXT_TX(rp, idx);
3637 }
3638
3639 dev_kfree_skb(skb);
3640
3641 return idx;
3642 }
3643
3644 #define NIU_TX_WAKEUP_THRESH(rp) ((rp)->pending / 4)
3645
3646 static void niu_tx_work(struct niu *np, struct tx_ring_info *rp)
3647 {
3648 struct netdev_queue *txq;
3649 u16 pkt_cnt, tmp;
3650 int cons, index;
3651 u64 cs;
3652
3653 index = (rp - np->tx_rings);
3654 txq = netdev_get_tx_queue(np->dev, index);
3655
3656 cs = rp->tx_cs;
3657 if (unlikely(!(cs & (TX_CS_MK | TX_CS_MMK))))
3658 goto out;
3659
3660 tmp = pkt_cnt = (cs & TX_CS_PKT_CNT) >> TX_CS_PKT_CNT_SHIFT;
3661 pkt_cnt = (pkt_cnt - rp->last_pkt_cnt) &
3662 (TX_CS_PKT_CNT >> TX_CS_PKT_CNT_SHIFT);
3663
3664 rp->last_pkt_cnt = tmp;
3665
3666 cons = rp->cons;
3667
3668 niudbg(TX_DONE, "%s: niu_tx_work() pkt_cnt[%u] cons[%d]\n",
3669 np->dev->name, pkt_cnt, cons);
3670
3671 while (pkt_cnt--)
3672 cons = release_tx_packet(np, rp, cons);
3673
3674 rp->cons = cons;
3675 smp_mb();
3676
3677 out:
3678 if (unlikely(netif_tx_queue_stopped(txq) &&
3679 (niu_tx_avail(rp) > NIU_TX_WAKEUP_THRESH(rp)))) {
3680 __netif_tx_lock(txq, smp_processor_id());
3681 if (netif_tx_queue_stopped(txq) &&
3682 (niu_tx_avail(rp) > NIU_TX_WAKEUP_THRESH(rp)))
3683 netif_tx_wake_queue(txq);
3684 __netif_tx_unlock(txq);
3685 }
3686 }
3687
3688 static inline void niu_sync_rx_discard_stats(struct niu *np,
3689 struct rx_ring_info *rp,
3690 const int limit)
3691 {
3692 /* This elaborate scheme is needed for reading the RX discard
3693 * counters, as they are only 16-bit and can overflow quickly,
3694 * and because the overflow indication bit is not usable as
3695 * the counter value does not wrap, but remains at max value
3696 * 0xFFFF.
3697 *
3698 * In theory and in practice counters can be lost in between
3699 * reading nr64() and clearing the counter nw64(). For this
3700 * reason, the number of counter clearings nw64() is
3701 * limited/reduced though the limit parameter.
3702 */
3703 int rx_channel = rp->rx_channel;
3704 u32 misc, wred;
3705
3706 /* RXMISC (Receive Miscellaneous Discard Count), covers the
3707 * following discard events: IPP (Input Port Process),
3708 * FFLP/TCAM, Full RCR (Receive Completion Ring) RBR (Receive
3709 * Block Ring) prefetch buffer is empty.
3710 */
3711 misc = nr64(RXMISC(rx_channel));
3712 if (unlikely((misc & RXMISC_COUNT) > limit)) {
3713 nw64(RXMISC(rx_channel), 0);
3714 rp->rx_errors += misc & RXMISC_COUNT;
3715
3716 if (unlikely(misc & RXMISC_OFLOW))
3717 dev_err(np->device, "rx-%d: Counter overflow "
3718 "RXMISC discard\n", rx_channel);
3719
3720 niudbg(RX_ERR, "%s-rx-%d: MISC drop=%u over=%u\n",
3721 np->dev->name, rx_channel, misc, misc-limit);
3722 }
3723
3724 /* WRED (Weighted Random Early Discard) by hardware */
3725 wred = nr64(RED_DIS_CNT(rx_channel));
3726 if (unlikely((wred & RED_DIS_CNT_COUNT) > limit)) {
3727 nw64(RED_DIS_CNT(rx_channel), 0);
3728 rp->rx_dropped += wred & RED_DIS_CNT_COUNT;
3729
3730 if (unlikely(wred & RED_DIS_CNT_OFLOW))
3731 dev_err(np->device, "rx-%d: Counter overflow "
3732 "WRED discard\n", rx_channel);
3733
3734 niudbg(RX_ERR, "%s-rx-%d: WRED drop=%u over=%u\n",
3735 np->dev->name, rx_channel, wred, wred-limit);
3736 }
3737 }
3738
3739 static int niu_rx_work(struct napi_struct *napi, struct niu *np,
3740 struct rx_ring_info *rp, int budget)
3741 {
3742 int qlen, rcr_done = 0, work_done = 0;
3743 struct rxdma_mailbox *mbox = rp->mbox;
3744 u64 stat;
3745
3746 #if 1
3747 stat = nr64(RX_DMA_CTL_STAT(rp->rx_channel));
3748 qlen = nr64(RCRSTAT_A(rp->rx_channel)) & RCRSTAT_A_QLEN;
3749 #else
3750 stat = le64_to_cpup(&mbox->rx_dma_ctl_stat);
3751 qlen = (le64_to_cpup(&mbox->rcrstat_a) & RCRSTAT_A_QLEN);
3752 #endif
3753 mbox->rx_dma_ctl_stat = 0;
3754 mbox->rcrstat_a = 0;
3755
3756 niudbg(RX_STATUS, "%s: niu_rx_work(chan[%d]), stat[%llx] qlen=%d\n",
3757 np->dev->name, rp->rx_channel, (unsigned long long) stat, qlen);
3758
3759 rcr_done = work_done = 0;
3760 qlen = min(qlen, budget);
3761 while (work_done < qlen) {
3762 rcr_done += niu_process_rx_pkt(napi, np, rp);
3763 work_done++;
3764 }
3765
3766 if (rp->rbr_refill_pending >= rp->rbr_kick_thresh) {
3767 unsigned int i;
3768
3769 for (i = 0; i < rp->rbr_refill_pending; i++)
3770 niu_rbr_refill(np, rp, GFP_ATOMIC);
3771 rp->rbr_refill_pending = 0;
3772 }
3773
3774 stat = (RX_DMA_CTL_STAT_MEX |
3775 ((u64)work_done << RX_DMA_CTL_STAT_PKTREAD_SHIFT) |
3776 ((u64)rcr_done << RX_DMA_CTL_STAT_PTRREAD_SHIFT));
3777
3778 nw64(RX_DMA_CTL_STAT(rp->rx_channel), stat);
3779
3780 /* Only sync discards stats when qlen indicate potential for drops */
3781 if (qlen > 10)
3782 niu_sync_rx_discard_stats(np, rp, 0x7FFF);
3783
3784 return work_done;
3785 }
3786
3787 static int niu_poll_core(struct niu *np, struct niu_ldg *lp, int budget)
3788 {
3789 u64 v0 = lp->v0;
3790 u32 tx_vec = (v0 >> 32);
3791 u32 rx_vec = (v0 & 0xffffffff);
3792 int i, work_done = 0;
3793
3794 niudbg(INTR, "%s: niu_poll_core() v0[%016llx]\n",
3795 np->dev->name, (unsigned long long) v0);
3796
3797 for (i = 0; i < np->num_tx_rings; i++) {
3798 struct tx_ring_info *rp = &np->tx_rings[i];
3799 if (tx_vec & (1 << rp->tx_channel))
3800 niu_tx_work(np, rp);
3801 nw64(LD_IM0(LDN_TXDMA(rp->tx_channel)), 0);
3802 }
3803
3804 for (i = 0; i < np->num_rx_rings; i++) {
3805 struct rx_ring_info *rp = &np->rx_rings[i];
3806
3807 if (rx_vec & (1 << rp->rx_channel)) {
3808 int this_work_done;
3809
3810 this_work_done = niu_rx_work(&lp->napi, np, rp,
3811 budget);
3812
3813 budget -= this_work_done;
3814 work_done += this_work_done;
3815 }
3816 nw64(LD_IM0(LDN_RXDMA(rp->rx_channel)), 0);
3817 }
3818
3819 return work_done;
3820 }
3821
3822 static int niu_poll(struct napi_struct *napi, int budget)
3823 {
3824 struct niu_ldg *lp = container_of(napi, struct niu_ldg, napi);
3825 struct niu *np = lp->np;
3826 int work_done;
3827
3828 work_done = niu_poll_core(np, lp, budget);
3829
3830 if (work_done < budget) {
3831 napi_complete(napi);
3832 niu_ldg_rearm(np, lp, 1);
3833 }
3834 return work_done;
3835 }
3836
3837 static void niu_log_rxchan_errors(struct niu *np, struct rx_ring_info *rp,
3838 u64 stat)
3839 {
3840 dev_err(np->device, PFX "%s: RX channel %u errors ( ",
3841 np->dev->name, rp->rx_channel);
3842
3843 if (stat & RX_DMA_CTL_STAT_RBR_TMOUT)
3844 printk("RBR_TMOUT ");
3845 if (stat & RX_DMA_CTL_STAT_RSP_CNT_ERR)
3846 printk("RSP_CNT ");
3847 if (stat & RX_DMA_CTL_STAT_BYTE_EN_BUS)
3848 printk("BYTE_EN_BUS ");
3849 if (stat & RX_DMA_CTL_STAT_RSP_DAT_ERR)
3850 printk("RSP_DAT ");
3851 if (stat & RX_DMA_CTL_STAT_RCR_ACK_ERR)
3852 printk("RCR_ACK ");
3853 if (stat & RX_DMA_CTL_STAT_RCR_SHA_PAR)
3854 printk("RCR_SHA_PAR ");
3855 if (stat & RX_DMA_CTL_STAT_RBR_PRE_PAR)
3856 printk("RBR_PRE_PAR ");
3857 if (stat & RX_DMA_CTL_STAT_CONFIG_ERR)
3858 printk("CONFIG ");
3859 if (stat & RX_DMA_CTL_STAT_RCRINCON)
3860 printk("RCRINCON ");
3861 if (stat & RX_DMA_CTL_STAT_RCRFULL)
3862 printk("RCRFULL ");
3863 if (stat & RX_DMA_CTL_STAT_RBRFULL)
3864 printk("RBRFULL ");
3865 if (stat & RX_DMA_CTL_STAT_RBRLOGPAGE)
3866 printk("RBRLOGPAGE ");
3867 if (stat & RX_DMA_CTL_STAT_CFIGLOGPAGE)
3868 printk("CFIGLOGPAGE ");
3869 if (stat & RX_DMA_CTL_STAT_DC_FIFO_ERR)
3870 printk("DC_FIDO ");
3871
3872 printk(")\n");
3873 }
3874
3875 static int niu_rx_error(struct niu *np, struct rx_ring_info *rp)
3876 {
3877 u64 stat = nr64(RX_DMA_CTL_STAT(rp->rx_channel));
3878 int err = 0;
3879
3880
3881 if (stat & (RX_DMA_CTL_STAT_CHAN_FATAL |
3882 RX_DMA_CTL_STAT_PORT_FATAL))
3883 err = -EINVAL;
3884
3885 if (err) {
3886 dev_err(np->device, PFX "%s: RX channel %u error, stat[%llx]\n",
3887 np->dev->name, rp->rx_channel,
3888 (unsigned long long) stat);
3889
3890 niu_log_rxchan_errors(np, rp, stat);
3891 }
3892
3893 nw64(RX_DMA_CTL_STAT(rp->rx_channel),
3894 stat & RX_DMA_CTL_WRITE_CLEAR_ERRS);
3895
3896 return err;
3897 }
3898
3899 static void niu_log_txchan_errors(struct niu *np, struct tx_ring_info *rp,
3900 u64 cs)
3901 {
3902 dev_err(np->device, PFX "%s: TX channel %u errors ( ",
3903 np->dev->name, rp->tx_channel);
3904
3905 if (cs & TX_CS_MBOX_ERR)
3906 printk("MBOX ");
3907 if (cs & TX_CS_PKT_SIZE_ERR)
3908 printk("PKT_SIZE ");
3909 if (cs & TX_CS_TX_RING_OFLOW)
3910 printk("TX_RING_OFLOW ");
3911 if (cs & TX_CS_PREF_BUF_PAR_ERR)
3912 printk("PREF_BUF_PAR ");
3913 if (cs & TX_CS_NACK_PREF)
3914 printk("NACK_PREF ");
3915 if (cs & TX_CS_NACK_PKT_RD)
3916 printk("NACK_PKT_RD ");
3917 if (cs & TX_CS_CONF_PART_ERR)
3918 printk("CONF_PART ");
3919 if (cs & TX_CS_PKT_PRT_ERR)
3920 printk("PKT_PTR ");
3921
3922 printk(")\n");
3923 }
3924
3925 static int niu_tx_error(struct niu *np, struct tx_ring_info *rp)
3926 {
3927 u64 cs, logh, logl;
3928
3929 cs = nr64(TX_CS(rp->tx_channel));
3930 logh = nr64(TX_RNG_ERR_LOGH(rp->tx_channel));
3931 logl = nr64(TX_RNG_ERR_LOGL(rp->tx_channel));
3932
3933 dev_err(np->device, PFX "%s: TX channel %u error, "
3934 "cs[%llx] logh[%llx] logl[%llx]\n",
3935 np->dev->name, rp->tx_channel,
3936 (unsigned long long) cs,
3937 (unsigned long long) logh,
3938 (unsigned long long) logl);
3939
3940 niu_log_txchan_errors(np, rp, cs);
3941
3942 return -ENODEV;
3943 }
3944
3945 static int niu_mif_interrupt(struct niu *np)
3946 {
3947 u64 mif_status = nr64(MIF_STATUS);
3948 int phy_mdint = 0;
3949
3950 if (np->flags & NIU_FLAGS_XMAC) {
3951 u64 xrxmac_stat = nr64_mac(XRXMAC_STATUS);
3952
3953 if (xrxmac_stat & XRXMAC_STATUS_PHY_MDINT)
3954 phy_mdint = 1;
3955 }
3956
3957 dev_err(np->device, PFX "%s: MIF interrupt, "
3958 "stat[%llx] phy_mdint(%d)\n",
3959 np->dev->name, (unsigned long long) mif_status, phy_mdint);
3960
3961 return -ENODEV;
3962 }
3963
3964 static void niu_xmac_interrupt(struct niu *np)
3965 {
3966 struct niu_xmac_stats *mp = &np->mac_stats.xmac;
3967 u64 val;
3968
3969 val = nr64_mac(XTXMAC_STATUS);
3970 if (val & XTXMAC_STATUS_FRAME_CNT_EXP)
3971 mp->tx_frames += TXMAC_FRM_CNT_COUNT;
3972 if (val & XTXMAC_STATUS_BYTE_CNT_EXP)
3973 mp->tx_bytes += TXMAC_BYTE_CNT_COUNT;
3974 if (val & XTXMAC_STATUS_TXFIFO_XFR_ERR)
3975 mp->tx_fifo_errors++;
3976 if (val & XTXMAC_STATUS_TXMAC_OFLOW)
3977 mp->tx_overflow_errors++;
3978 if (val & XTXMAC_STATUS_MAX_PSIZE_ERR)
3979 mp->tx_max_pkt_size_errors++;
3980 if (val & XTXMAC_STATUS_TXMAC_UFLOW)
3981 mp->tx_underflow_errors++;
3982
3983 val = nr64_mac(XRXMAC_STATUS);
3984 if (val & XRXMAC_STATUS_LCL_FLT_STATUS)
3985 mp->rx_local_faults++;
3986 if (val & XRXMAC_STATUS_RFLT_DET)
3987 mp->rx_remote_faults++;
3988 if (val & XRXMAC_STATUS_LFLT_CNT_EXP)
3989 mp->rx_link_faults += LINK_FAULT_CNT_COUNT;
3990 if (val & XRXMAC_STATUS_ALIGNERR_CNT_EXP)
3991 mp->rx_align_errors += RXMAC_ALIGN_ERR_CNT_COUNT;
3992 if (val & XRXMAC_STATUS_RXFRAG_CNT_EXP)
3993 mp->rx_frags += RXMAC_FRAG_CNT_COUNT;
3994 if (val & XRXMAC_STATUS_RXMULTF_CNT_EXP)
3995 mp->rx_mcasts += RXMAC_MC_FRM_CNT_COUNT;
3996 if (val & XRXMAC_STATUS_RXBCAST_CNT_EXP)
3997 mp->rx_bcasts += RXMAC_BC_FRM_CNT_COUNT;
3998 if (val & XRXMAC_STATUS_RXBCAST_CNT_EXP)
3999 mp->rx_bcasts += RXMAC_BC_FRM_CNT_COUNT;
4000 if (val & XRXMAC_STATUS_RXHIST1_CNT_EXP)
4001 mp->rx_hist_cnt1 += RXMAC_HIST_CNT1_COUNT;
4002 if (val & XRXMAC_STATUS_RXHIST2_CNT_EXP)
4003 mp->rx_hist_cnt2 += RXMAC_HIST_CNT2_COUNT;
4004 if (val & XRXMAC_STATUS_RXHIST3_CNT_EXP)
4005 mp->rx_hist_cnt3 += RXMAC_HIST_CNT3_COUNT;
4006 if (val & XRXMAC_STATUS_RXHIST4_CNT_EXP)
4007 mp->rx_hist_cnt4 += RXMAC_HIST_CNT4_COUNT;
4008 if (val & XRXMAC_STATUS_RXHIST5_CNT_EXP)
4009 mp->rx_hist_cnt5 += RXMAC_HIST_CNT5_COUNT;
4010 if (val & XRXMAC_STATUS_RXHIST6_CNT_EXP)
4011 mp->rx_hist_cnt6 += RXMAC_HIST_CNT6_COUNT;
4012 if (val & XRXMAC_STATUS_RXHIST7_CNT_EXP)
4013 mp->rx_hist_cnt7 += RXMAC_HIST_CNT7_COUNT;
4014 if (val & XRXMAC_STATUS_RXOCTET_CNT_EXP)
4015 mp->rx_octets += RXMAC_BT_CNT_COUNT;
4016 if (val & XRXMAC_STATUS_CVIOLERR_CNT_EXP)
4017 mp->rx_code_violations += RXMAC_CD_VIO_CNT_COUNT;
4018 if (val & XRXMAC_STATUS_LENERR_CNT_EXP)
4019 mp->rx_len_errors += RXMAC_MPSZER_CNT_COUNT;
4020 if (val & XRXMAC_STATUS_CRCERR_CNT_EXP)
4021 mp->rx_crc_errors += RXMAC_CRC_ER_CNT_COUNT;
4022 if (val & XRXMAC_STATUS_RXUFLOW)
4023 mp->rx_underflows++;
4024 if (val & XRXMAC_STATUS_RXOFLOW)
4025 mp->rx_overflows++;
4026
4027 val = nr64_mac(XMAC_FC_STAT);
4028 if (val & XMAC_FC_STAT_TX_MAC_NPAUSE)
4029 mp->pause_off_state++;
4030 if (val & XMAC_FC_STAT_TX_MAC_PAUSE)
4031 mp->pause_on_state++;
4032 if (val & XMAC_FC_STAT_RX_MAC_RPAUSE)
4033 mp->pause_received++;
4034 }
4035
4036 static void niu_bmac_interrupt(struct niu *np)
4037 {
4038 struct niu_bmac_stats *mp = &np->mac_stats.bmac;
4039 u64 val;
4040
4041 val = nr64_mac(BTXMAC_STATUS);
4042 if (val & BTXMAC_STATUS_UNDERRUN)
4043 mp->tx_underflow_errors++;
4044 if (val & BTXMAC_STATUS_MAX_PKT_ERR)
4045 mp->tx_max_pkt_size_errors++;
4046 if (val & BTXMAC_STATUS_BYTE_CNT_EXP)
4047 mp->tx_bytes += BTXMAC_BYTE_CNT_COUNT;
4048 if (val & BTXMAC_STATUS_FRAME_CNT_EXP)
4049 mp->tx_frames += BTXMAC_FRM_CNT_COUNT;
4050
4051 val = nr64_mac(BRXMAC_STATUS);
4052 if (val & BRXMAC_STATUS_OVERFLOW)
4053 mp->rx_overflows++;
4054 if (val & BRXMAC_STATUS_FRAME_CNT_EXP)
4055 mp->rx_frames += BRXMAC_FRAME_CNT_COUNT;
4056 if (val & BRXMAC_STATUS_ALIGN_ERR_EXP)
4057 mp->rx_align_errors += BRXMAC_ALIGN_ERR_CNT_COUNT;
4058 if (val & BRXMAC_STATUS_CRC_ERR_EXP)
4059 mp->rx_crc_errors += BRXMAC_ALIGN_ERR_CNT_COUNT;
4060 if (val & BRXMAC_STATUS_LEN_ERR_EXP)
4061 mp->rx_len_errors += BRXMAC_CODE_VIOL_ERR_CNT_COUNT;
4062
4063 val = nr64_mac(BMAC_CTRL_STATUS);
4064 if (val & BMAC_CTRL_STATUS_NOPAUSE)
4065 mp->pause_off_state++;
4066 if (val & BMAC_CTRL_STATUS_PAUSE)
4067 mp->pause_on_state++;
4068 if (val & BMAC_CTRL_STATUS_PAUSE_RECV)
4069 mp->pause_received++;
4070 }
4071
4072 static int niu_mac_interrupt(struct niu *np)
4073 {
4074 if (np->flags & NIU_FLAGS_XMAC)
4075 niu_xmac_interrupt(np);
4076 else
4077 niu_bmac_interrupt(np);
4078
4079 return 0;
4080 }
4081
4082 static void niu_log_device_error(struct niu *np, u64 stat)
4083 {
4084 dev_err(np->device, PFX "%s: Core device errors ( ",
4085 np->dev->name);
4086
4087 if (stat & SYS_ERR_MASK_META2)
4088 printk("META2 ");
4089 if (stat & SYS_ERR_MASK_META1)
4090 printk("META1 ");
4091 if (stat & SYS_ERR_MASK_PEU)
4092 printk("PEU ");
4093 if (stat & SYS_ERR_MASK_TXC)
4094 printk("TXC ");
4095 if (stat & SYS_ERR_MASK_RDMC)
4096 printk("RDMC ");
4097 if (stat & SYS_ERR_MASK_TDMC)
4098 printk("TDMC ");
4099 if (stat & SYS_ERR_MASK_ZCP)
4100 printk("ZCP ");
4101 if (stat & SYS_ERR_MASK_FFLP)
4102 printk("FFLP ");
4103 if (stat & SYS_ERR_MASK_IPP)
4104 printk("IPP ");
4105 if (stat & SYS_ERR_MASK_MAC)
4106 printk("MAC ");
4107 if (stat & SYS_ERR_MASK_SMX)
4108 printk("SMX ");
4109
4110 printk(")\n");
4111 }
4112
4113 static int niu_device_error(struct niu *np)
4114 {
4115 u64 stat = nr64(SYS_ERR_STAT);
4116
4117 dev_err(np->device, PFX "%s: Core device error, stat[%llx]\n",
4118 np->dev->name, (unsigned long long) stat);
4119
4120 niu_log_device_error(np, stat);
4121
4122 return -ENODEV;
4123 }
4124
4125 static int niu_slowpath_interrupt(struct niu *np, struct niu_ldg *lp,
4126 u64 v0, u64 v1, u64 v2)
4127 {
4128
4129 int i, err = 0;
4130
4131 lp->v0 = v0;
4132 lp->v1 = v1;
4133 lp->v2 = v2;
4134
4135 if (v1 & 0x00000000ffffffffULL) {
4136 u32 rx_vec = (v1 & 0xffffffff);
4137
4138 for (i = 0; i < np->num_rx_rings; i++) {
4139 struct rx_ring_info *rp = &np->rx_rings[i];
4140
4141 if (rx_vec & (1 << rp->rx_channel)) {
4142 int r = niu_rx_error(np, rp);
4143 if (r) {
4144 err = r;
4145 } else {
4146 if (!v0)
4147 nw64(RX_DMA_CTL_STAT(rp->rx_channel),
4148 RX_DMA_CTL_STAT_MEX);
4149 }
4150 }
4151 }
4152 }
4153 if (v1 & 0x7fffffff00000000ULL) {
4154 u32 tx_vec = (v1 >> 32) & 0x7fffffff;
4155
4156 for (i = 0; i < np->num_tx_rings; i++) {
4157 struct tx_ring_info *rp = &np->tx_rings[i];
4158
4159 if (tx_vec & (1 << rp->tx_channel)) {
4160 int r = niu_tx_error(np, rp);
4161 if (r)
4162 err = r;
4163 }
4164 }
4165 }
4166 if ((v0 | v1) & 0x8000000000000000ULL) {
4167 int r = niu_mif_interrupt(np);
4168 if (r)
4169 err = r;
4170 }
4171 if (v2) {
4172 if (v2 & 0x01ef) {
4173 int r = niu_mac_interrupt(np);
4174 if (r)
4175 err = r;
4176 }
4177 if (v2 & 0x0210) {
4178 int r = niu_device_error(np);
4179 if (r)
4180 err = r;
4181 }
4182 }
4183
4184 if (err)
4185 niu_enable_interrupts(np, 0);
4186
4187 return err;
4188 }
4189
4190 static void niu_rxchan_intr(struct niu *np, struct rx_ring_info *rp,
4191 int ldn)
4192 {
4193 struct rxdma_mailbox *mbox = rp->mbox;
4194 u64 stat_write, stat = le64_to_cpup(&mbox->rx_dma_ctl_stat);
4195
4196 stat_write = (RX_DMA_CTL_STAT_RCRTHRES |
4197 RX_DMA_CTL_STAT_RCRTO);
4198 nw64(RX_DMA_CTL_STAT(rp->rx_channel), stat_write);
4199
4200 niudbg(INTR, "%s: rxchan_intr stat[%llx]\n",
4201 np->dev->name, (unsigned long long) stat);
4202 }
4203
4204 static void niu_txchan_intr(struct niu *np, struct tx_ring_info *rp,
4205 int ldn)
4206 {
4207 rp->tx_cs = nr64(TX_CS(rp->tx_channel));
4208
4209 niudbg(INTR, "%s: txchan_intr cs[%llx]\n",
4210 np->dev->name, (unsigned long long) rp->tx_cs);
4211 }
4212
4213 static void __niu_fastpath_interrupt(struct niu *np, int ldg, u64 v0)
4214 {
4215 struct niu_parent *parent = np->parent;
4216 u32 rx_vec, tx_vec;
4217 int i;
4218
4219 tx_vec = (v0 >> 32);
4220 rx_vec = (v0 & 0xffffffff);
4221
4222 for (i = 0; i < np->num_rx_rings; i++) {
4223 struct rx_ring_info *rp = &np->rx_rings[i];
4224 int ldn = LDN_RXDMA(rp->rx_channel);
4225
4226 if (parent->ldg_map[ldn] != ldg)
4227 continue;
4228
4229 nw64(LD_IM0(ldn), LD_IM0_MASK);
4230 if (rx_vec & (1 << rp->rx_channel))
4231 niu_rxchan_intr(np, rp, ldn);
4232 }
4233
4234 for (i = 0; i < np->num_tx_rings; i++) {
4235 struct tx_ring_info *rp = &np->tx_rings[i];
4236 int ldn = LDN_TXDMA(rp->tx_channel);
4237
4238 if (parent->ldg_map[ldn] != ldg)
4239 continue;
4240
4241 nw64(LD_IM0(ldn), LD_IM0_MASK);
4242 if (tx_vec & (1 << rp->tx_channel))
4243 niu_txchan_intr(np, rp, ldn);
4244 }
4245 }
4246
4247 static void niu_schedule_napi(struct niu *np, struct niu_ldg *lp,
4248 u64 v0, u64 v1, u64 v2)
4249 {
4250 if (likely(napi_schedule_prep(&lp->napi))) {
4251 lp->v0 = v0;
4252 lp->v1 = v1;
4253 lp->v2 = v2;
4254 __niu_fastpath_interrupt(np, lp->ldg_num, v0);
4255 __napi_schedule(&lp->napi);
4256 }
4257 }
4258
4259 static irqreturn_t niu_interrupt(int irq, void *dev_id)
4260 {
4261 struct niu_ldg *lp = dev_id;
4262 struct niu *np = lp->np;
4263 int ldg = lp->ldg_num;
4264 unsigned long flags;
4265 u64 v0, v1, v2;
4266
4267 if (netif_msg_intr(np))
4268 printk(KERN_DEBUG PFX "niu_interrupt() ldg[%p](%d) ",
4269 lp, ldg);
4270
4271 spin_lock_irqsave(&np->lock, flags);
4272
4273 v0 = nr64(LDSV0(ldg));
4274 v1 = nr64(LDSV1(ldg));
4275 v2 = nr64(LDSV2(ldg));
4276
4277 if (netif_msg_intr(np))
4278 printk("v0[%llx] v1[%llx] v2[%llx]\n",
4279 (unsigned long long) v0,
4280 (unsigned long long) v1,
4281 (unsigned long long) v2);
4282
4283 if (unlikely(!v0 && !v1 && !v2)) {
4284 spin_unlock_irqrestore(&np->lock, flags);
4285 return IRQ_NONE;
4286 }
4287
4288 if (unlikely((v0 & ((u64)1 << LDN_MIF)) || v1 || v2)) {
4289 int err = niu_slowpath_interrupt(np, lp, v0, v1, v2);
4290 if (err)
4291 goto out;
4292 }
4293 if (likely(v0 & ~((u64)1 << LDN_MIF)))
4294 niu_schedule_napi(np, lp, v0, v1, v2);
4295 else
4296 niu_ldg_rearm(np, lp, 1);
4297 out:
4298 spin_unlock_irqrestore(&np->lock, flags);
4299
4300 return IRQ_HANDLED;
4301 }
4302
4303 static void niu_free_rx_ring_info(struct niu *np, struct rx_ring_info *rp)
4304 {
4305 if (rp->mbox) {
4306 np->ops->free_coherent(np->device,
4307 sizeof(struct rxdma_mailbox),
4308 rp->mbox, rp->mbox_dma);
4309 rp->mbox = NULL;
4310 }
4311 if (rp->rcr) {
4312 np->ops->free_coherent(np->device,
4313 MAX_RCR_RING_SIZE * sizeof(__le64),
4314 rp->rcr, rp->rcr_dma);
4315 rp->rcr = NULL;
4316 rp->rcr_table_size = 0;
4317 rp->rcr_index = 0;
4318 }
4319 if (rp->rbr) {
4320 niu_rbr_free(np, rp);
4321
4322 np->ops->free_coherent(np->device,
4323 MAX_RBR_RING_SIZE * sizeof(__le32),
4324 rp->rbr, rp->rbr_dma);
4325 rp->rbr = NULL;
4326 rp->rbr_table_size = 0;
4327 rp->rbr_index = 0;
4328 }
4329 kfree(rp->rxhash);
4330 rp->rxhash = NULL;
4331 }
4332
4333 static void niu_free_tx_ring_info(struct niu *np, struct tx_ring_info *rp)
4334 {
4335 if (rp->mbox) {
4336 np->ops->free_coherent(np->device,
4337 sizeof(struct txdma_mailbox),
4338 rp->mbox, rp->mbox_dma);
4339 rp->mbox = NULL;
4340 }
4341 if (rp->descr) {
4342 int i;
4343
4344 for (i = 0; i < MAX_TX_RING_SIZE; i++) {
4345 if (rp->tx_buffs[i].skb)
4346 (void) release_tx_packet(np, rp, i);
4347 }
4348
4349 np->ops->free_coherent(np->device,
4350 MAX_TX_RING_SIZE * sizeof(__le64),
4351 rp->descr, rp->descr_dma);
4352 rp->descr = NULL;
4353 rp->pending = 0;
4354 rp->prod = 0;
4355 rp->cons = 0;
4356 rp->wrap_bit = 0;
4357 }
4358 }
4359
4360 static void niu_free_channels(struct niu *np)
4361 {
4362 int i;
4363
4364 if (np->rx_rings) {
4365 for (i = 0; i < np->num_rx_rings; i++) {
4366 struct rx_ring_info *rp = &np->rx_rings[i];
4367
4368 niu_free_rx_ring_info(np, rp);
4369 }
4370 kfree(np->rx_rings);
4371 np->rx_rings = NULL;
4372 np->num_rx_rings = 0;
4373 }
4374
4375 if (np->tx_rings) {
4376 for (i = 0; i < np->num_tx_rings; i++) {
4377 struct tx_ring_info *rp = &np->tx_rings[i];
4378
4379 niu_free_tx_ring_info(np, rp);
4380 }
4381 kfree(np->tx_rings);
4382 np->tx_rings = NULL;
4383 np->num_tx_rings = 0;
4384 }
4385 }
4386
4387 static int niu_alloc_rx_ring_info(struct niu *np,
4388 struct rx_ring_info *rp)
4389 {
4390 BUILD_BUG_ON(sizeof(struct rxdma_mailbox) != 64);
4391
4392 rp->rxhash = kzalloc(MAX_RBR_RING_SIZE * sizeof(struct page *),
4393 GFP_KERNEL);
4394 if (!rp->rxhash)
4395 return -ENOMEM;
4396
4397 rp->mbox = np->ops->alloc_coherent(np->device,
4398 sizeof(struct rxdma_mailbox),
4399 &rp->mbox_dma, GFP_KERNEL);
4400 if (!rp->mbox)
4401 return -ENOMEM;
4402 if ((unsigned long)rp->mbox & (64UL - 1)) {
4403 dev_err(np->device, PFX "%s: Coherent alloc gives misaligned "
4404 "RXDMA mailbox %p\n", np->dev->name, rp->mbox);
4405 return -EINVAL;
4406 }
4407
4408 rp->rcr = np->ops->alloc_coherent(np->device,
4409 MAX_RCR_RING_SIZE * sizeof(__le64),
4410 &rp->rcr_dma, GFP_KERNEL);
4411 if (!rp->rcr)
4412 return -ENOMEM;
4413 if ((unsigned long)rp->rcr & (64UL - 1)) {
4414 dev_err(np->device, PFX "%s: Coherent alloc gives misaligned "
4415 "RXDMA RCR table %p\n", np->dev->name, rp->rcr);
4416 return -EINVAL;
4417 }
4418 rp->rcr_table_size = MAX_RCR_RING_SIZE;
4419 rp->rcr_index = 0;
4420
4421 rp->rbr = np->ops->alloc_coherent(np->device,
4422 MAX_RBR_RING_SIZE * sizeof(__le32),
4423 &rp->rbr_dma, GFP_KERNEL);
4424 if (!rp->rbr)
4425 return -ENOMEM;
4426 if ((unsigned long)rp->rbr & (64UL - 1)) {
4427 dev_err(np->device, PFX "%s: Coherent alloc gives misaligned "
4428 "RXDMA RBR table %p\n", np->dev->name, rp->rbr);
4429 return -EINVAL;
4430 }
4431 rp->rbr_table_size = MAX_RBR_RING_SIZE;
4432 rp->rbr_index = 0;
4433 rp->rbr_pending = 0;
4434
4435 return 0;
4436 }
4437
4438 static void niu_set_max_burst(struct niu *np, struct tx_ring_info *rp)
4439 {
4440 int mtu = np->dev->mtu;
4441
4442 /* These values are recommended by the HW designers for fair
4443 * utilization of DRR amongst the rings.
4444 */
4445 rp->max_burst = mtu + 32;
4446 if (rp->max_burst > 4096)
4447 rp->max_burst = 4096;
4448 }
4449
4450 static int niu_alloc_tx_ring_info(struct niu *np,
4451 struct tx_ring_info *rp)
4452 {
4453 BUILD_BUG_ON(sizeof(struct txdma_mailbox) != 64);
4454
4455 rp->mbox = np->ops->alloc_coherent(np->device,
4456 sizeof(struct txdma_mailbox),
4457 &rp->mbox_dma, GFP_KERNEL);
4458 if (!rp->mbox)
4459 return -ENOMEM;
4460 if ((unsigned long)rp->mbox & (64UL - 1)) {
4461 dev_err(np->device, PFX "%s: Coherent alloc gives misaligned "
4462 "TXDMA mailbox %p\n", np->dev->name, rp->mbox);
4463 return -EINVAL;
4464 }
4465
4466 rp->descr = np->ops->alloc_coherent(np->device,
4467 MAX_TX_RING_SIZE * sizeof(__le64),
4468 &rp->descr_dma, GFP_KERNEL);
4469 if (!rp->descr)
4470 return -ENOMEM;
4471 if ((unsigned long)rp->descr & (64UL - 1)) {
4472 dev_err(np->device, PFX "%s: Coherent alloc gives misaligned "
4473 "TXDMA descr table %p\n", np->dev->name, rp->descr);
4474 return -EINVAL;
4475 }
4476
4477 rp->pending = MAX_TX_RING_SIZE;
4478 rp->prod = 0;
4479 rp->cons = 0;
4480 rp->wrap_bit = 0;
4481
4482 /* XXX make these configurable... XXX */
4483 rp->mark_freq = rp->pending / 4;
4484
4485 niu_set_max_burst(np, rp);
4486
4487 return 0;
4488 }
4489
4490 static void niu_size_rbr(struct niu *np, struct rx_ring_info *rp)
4491 {
4492 u16 bss;
4493
4494 bss = min(PAGE_SHIFT, 15);
4495
4496 rp->rbr_block_size = 1 << bss;
4497 rp->rbr_blocks_per_page = 1 << (PAGE_SHIFT-bss);
4498
4499 rp->rbr_sizes[0] = 256;
4500 rp->rbr_sizes[1] = 1024;
4501 if (np->dev->mtu > ETH_DATA_LEN) {
4502 switch (PAGE_SIZE) {
4503 case 4 * 1024:
4504 rp->rbr_sizes[2] = 4096;
4505 break;
4506
4507 default:
4508 rp->rbr_sizes[2] = 8192;
4509 break;
4510 }
4511 } else {
4512 rp->rbr_sizes[2] = 2048;
4513 }
4514 rp->rbr_sizes[3] = rp->rbr_block_size;
4515 }
4516
4517 static int niu_alloc_channels(struct niu *np)
4518 {
4519 struct niu_parent *parent = np->parent;
4520 int first_rx_channel, first_tx_channel;
4521 int i, port, err;
4522
4523 port = np->port;
4524 first_rx_channel = first_tx_channel = 0;
4525 for (i = 0; i < port; i++) {
4526 first_rx_channel += parent->rxchan_per_port[i];
4527 first_tx_channel += parent->txchan_per_port[i];
4528 }
4529
4530 np->num_rx_rings = parent->rxchan_per_port[port];
4531 np->num_tx_rings = parent->txchan_per_port[port];
4532
4533 np->dev->real_num_tx_queues = np->num_tx_rings;
4534
4535 np->rx_rings = kzalloc(np->num_rx_rings * sizeof(struct rx_ring_info),
4536 GFP_KERNEL);
4537 err = -ENOMEM;
4538 if (!np->rx_rings)
4539 goto out_err;
4540
4541 for (i = 0; i < np->num_rx_rings; i++) {
4542 struct rx_ring_info *rp = &np->rx_rings[i];
4543
4544 rp->np = np;
4545 rp->rx_channel = first_rx_channel + i;
4546
4547 err = niu_alloc_rx_ring_info(np, rp);
4548 if (err)
4549 goto out_err;
4550
4551 niu_size_rbr(np, rp);
4552
4553 /* XXX better defaults, configurable, etc... XXX */
4554 rp->nonsyn_window = 64;
4555 rp->nonsyn_threshold = rp->rcr_table_size - 64;
4556 rp->syn_window = 64;
4557 rp->syn_threshold = rp->rcr_table_size - 64;
4558 rp->rcr_pkt_threshold = 16;
4559 rp->rcr_timeout = 8;
4560 rp->rbr_kick_thresh = RBR_REFILL_MIN;
4561 if (rp->rbr_kick_thresh < rp->rbr_blocks_per_page)
4562 rp->rbr_kick_thresh = rp->rbr_blocks_per_page;
4563
4564 err = niu_rbr_fill(np, rp, GFP_KERNEL);
4565 if (err)
4566 return err;
4567 }
4568
4569 np->tx_rings = kzalloc(np->num_tx_rings * sizeof(struct tx_ring_info),
4570 GFP_KERNEL);
4571 err = -ENOMEM;
4572 if (!np->tx_rings)
4573 goto out_err;
4574
4575 for (i = 0; i < np->num_tx_rings; i++) {
4576 struct tx_ring_info *rp = &np->tx_rings[i];
4577
4578 rp->np = np;
4579 rp->tx_channel = first_tx_channel + i;
4580
4581 err = niu_alloc_tx_ring_info(np, rp);
4582 if (err)
4583 goto out_err;
4584 }
4585
4586 return 0;
4587
4588 out_err:
4589 niu_free_channels(np);
4590 return err;
4591 }
4592
4593 static int niu_tx_cs_sng_poll(struct niu *np, int channel)
4594 {
4595 int limit = 1000;
4596
4597 while (--limit > 0) {
4598 u64 val = nr64(TX_CS(channel));
4599 if (val & TX_CS_SNG_STATE)
4600 return 0;
4601 }
4602 return -ENODEV;
4603 }
4604
4605 static int niu_tx_channel_stop(struct niu *np, int channel)
4606 {
4607 u64 val = nr64(TX_CS(channel));
4608
4609 val |= TX_CS_STOP_N_GO;
4610 nw64(TX_CS(channel), val);
4611
4612 return niu_tx_cs_sng_poll(np, channel);
4613 }
4614
4615 static int niu_tx_cs_reset_poll(struct niu *np, int channel)
4616 {
4617 int limit = 1000;
4618
4619 while (--limit > 0) {
4620 u64 val = nr64(TX_CS(channel));
4621 if (!(val & TX_CS_RST))
4622 return 0;
4623 }
4624 return -ENODEV;
4625 }
4626
4627 static int niu_tx_channel_reset(struct niu *np, int channel)
4628 {
4629 u64 val = nr64(TX_CS(channel));
4630 int err;
4631
4632 val |= TX_CS_RST;
4633 nw64(TX_CS(channel), val);
4634
4635 err = niu_tx_cs_reset_poll(np, channel);
4636 if (!err)
4637 nw64(TX_RING_KICK(channel), 0);
4638
4639 return err;
4640 }
4641
4642 static int niu_tx_channel_lpage_init(struct niu *np, int channel)
4643 {
4644 u64 val;
4645
4646 nw64(TX_LOG_MASK1(channel), 0);
4647 nw64(TX_LOG_VAL1(channel), 0);
4648 nw64(TX_LOG_MASK2(channel), 0);
4649 nw64(TX_LOG_VAL2(channel), 0);
4650 nw64(TX_LOG_PAGE_RELO1(channel), 0);
4651 nw64(TX_LOG_PAGE_RELO2(channel), 0);
4652 nw64(TX_LOG_PAGE_HDL(channel), 0);
4653
4654 val = (u64)np->port << TX_LOG_PAGE_VLD_FUNC_SHIFT;
4655 val |= (TX_LOG_PAGE_VLD_PAGE0 | TX_LOG_PAGE_VLD_PAGE1);
4656 nw64(TX_LOG_PAGE_VLD(channel), val);
4657
4658 /* XXX TXDMA 32bit mode? XXX */
4659
4660 return 0;
4661 }
4662
4663 static void niu_txc_enable_port(struct niu *np, int on)
4664 {
4665 unsigned long flags;
4666 u64 val, mask;
4667
4668 niu_lock_parent(np, flags);
4669 val = nr64(TXC_CONTROL);
4670 mask = (u64)1 << np->port;
4671 if (on) {
4672 val |= TXC_CONTROL_ENABLE | mask;
4673 } else {
4674 val &= ~mask;
4675 if ((val & ~TXC_CONTROL_ENABLE) == 0)
4676 val &= ~TXC_CONTROL_ENABLE;
4677 }
4678 nw64(TXC_CONTROL, val);
4679 niu_unlock_parent(np, flags);
4680 }
4681
4682 static void niu_txc_set_imask(struct niu *np, u64 imask)
4683 {
4684 unsigned long flags;
4685 u64 val;
4686
4687 niu_lock_parent(np, flags);
4688 val = nr64(TXC_INT_MASK);
4689 val &= ~TXC_INT_MASK_VAL(np->port);
4690 val |= (imask << TXC_INT_MASK_VAL_SHIFT(np->port));
4691 niu_unlock_parent(np, flags);
4692 }
4693
4694 static void niu_txc_port_dma_enable(struct niu *np, int on)
4695 {
4696 u64 val = 0;
4697
4698 if (on) {
4699 int i;
4700
4701 for (i = 0; i < np->num_tx_rings; i++)
4702 val |= (1 << np->tx_rings[i].tx_channel);
4703 }
4704 nw64(TXC_PORT_DMA(np->port), val);
4705 }
4706
4707 static int niu_init_one_tx_channel(struct niu *np, struct tx_ring_info *rp)
4708 {
4709 int err, channel = rp->tx_channel;
4710 u64 val, ring_len;
4711
4712 err = niu_tx_channel_stop(np, channel);
4713 if (err)
4714 return err;
4715
4716 err = niu_tx_channel_reset(np, channel);
4717 if (err)
4718 return err;
4719
4720 err = niu_tx_channel_lpage_init(np, channel);
4721 if (err)
4722 return err;
4723
4724 nw64(TXC_DMA_MAX(channel), rp->max_burst);
4725 nw64(TX_ENT_MSK(channel), 0);
4726
4727 if (rp->descr_dma & ~(TX_RNG_CFIG_STADDR_BASE |
4728 TX_RNG_CFIG_STADDR)) {
4729 dev_err(np->device, PFX "%s: TX ring channel %d "
4730 "DMA addr (%llx) is not aligned.\n",
4731 np->dev->name, channel,
4732 (unsigned long long) rp->descr_dma);
4733 return -EINVAL;
4734 }
4735
4736 /* The length field in TX_RNG_CFIG is measured in 64-byte
4737 * blocks. rp->pending is the number of TX descriptors in
4738 * our ring, 8 bytes each, thus we divide by 8 bytes more
4739 * to get the proper value the chip wants.
4740 */
4741 ring_len = (rp->pending / 8);
4742
4743 val = ((ring_len << TX_RNG_CFIG_LEN_SHIFT) |
4744 rp->descr_dma);
4745 nw64(TX_RNG_CFIG(channel), val);
4746
4747 if (((rp->mbox_dma >> 32) & ~TXDMA_MBH_MBADDR) ||
4748 ((u32)rp->mbox_dma & ~TXDMA_MBL_MBADDR)) {
4749 dev_err(np->device, PFX "%s: TX ring channel %d "
4750 "MBOX addr (%llx) is has illegal bits.\n",
4751 np->dev->name, channel,
4752 (unsigned long long) rp->mbox_dma);
4753 return -EINVAL;
4754 }
4755 nw64(TXDMA_MBH(channel), rp->mbox_dma >> 32);
4756 nw64(TXDMA_MBL(channel), rp->mbox_dma & TXDMA_MBL_MBADDR);
4757
4758 nw64(TX_CS(channel), 0);
4759
4760 rp->last_pkt_cnt = 0;
4761
4762 return 0;
4763 }
4764
4765 static void niu_init_rdc_groups(struct niu *np)
4766 {
4767 struct niu_rdc_tables *tp = &np->parent->rdc_group_cfg[np->port];
4768 int i, first_table_num = tp->first_table_num;
4769
4770 for (i = 0; i < tp->num_tables; i++) {
4771 struct rdc_table *tbl = &tp->tables[i];
4772 int this_table = first_table_num + i;
4773 int slot;
4774
4775 for (slot = 0; slot < NIU_RDC_TABLE_SLOTS; slot++)
4776 nw64(RDC_TBL(this_table, slot),
4777 tbl->rxdma_channel[slot]);
4778 }
4779
4780 nw64(DEF_RDC(np->port), np->parent->rdc_default[np->port]);
4781 }
4782
4783 static void niu_init_drr_weight(struct niu *np)
4784 {
4785 int type = phy_decode(np->parent->port_phy, np->port);
4786 u64 val;
4787
4788 switch (type) {
4789 case PORT_TYPE_10G:
4790 val = PT_DRR_WEIGHT_DEFAULT_10G;
4791 break;
4792
4793 case PORT_TYPE_1G:
4794 default:
4795 val = PT_DRR_WEIGHT_DEFAULT_1G;
4796 break;
4797 }
4798 nw64(PT_DRR_WT(np->port), val);
4799 }
4800
4801 static int niu_init_hostinfo(struct niu *np)
4802 {
4803 struct niu_parent *parent = np->parent;
4804 struct niu_rdc_tables *tp = &parent->rdc_group_cfg[np->port];
4805 int i, err, num_alt = niu_num_alt_addr(np);
4806 int first_rdc_table = tp->first_table_num;
4807
4808 err = niu_set_primary_mac_rdc_table(np, first_rdc_table, 1);
4809 if (err)
4810 return err;
4811
4812 err = niu_set_multicast_mac_rdc_table(np, first_rdc_table, 1);
4813 if (err)
4814 return err;
4815
4816 for (i = 0; i < num_alt; i++) {
4817 err = niu_set_alt_mac_rdc_table(np, i, first_rdc_table, 1);
4818 if (err)
4819 return err;
4820 }
4821
4822 return 0;
4823 }
4824
4825 static int niu_rx_channel_reset(struct niu *np, int channel)
4826 {
4827 return niu_set_and_wait_clear(np, RXDMA_CFIG1(channel),
4828 RXDMA_CFIG1_RST, 1000, 10,
4829 "RXDMA_CFIG1");
4830 }
4831
4832 static int niu_rx_channel_lpage_init(struct niu *np, int channel)
4833 {
4834 u64 val;
4835
4836 nw64(RX_LOG_MASK1(channel), 0);
4837 nw64(RX_LOG_VAL1(channel), 0);
4838 nw64(RX_LOG_MASK2(channel), 0);
4839 nw64(RX_LOG_VAL2(channel), 0);
4840 nw64(RX_LOG_PAGE_RELO1(channel), 0);
4841 nw64(RX_LOG_PAGE_RELO2(channel), 0);
4842 nw64(RX_LOG_PAGE_HDL(channel), 0);
4843
4844 val = (u64)np->port << RX_LOG_PAGE_VLD_FUNC_SHIFT;
4845 val |= (RX_LOG_PAGE_VLD_PAGE0 | RX_LOG_PAGE_VLD_PAGE1);
4846 nw64(RX_LOG_PAGE_VLD(channel), val);
4847
4848 return 0;
4849 }
4850
4851 static void niu_rx_channel_wred_init(struct niu *np, struct rx_ring_info *rp)
4852 {
4853 u64 val;
4854
4855 val = (((u64)rp->nonsyn_window << RDC_RED_PARA_WIN_SHIFT) |
4856 ((u64)rp->nonsyn_threshold << RDC_RED_PARA_THRE_SHIFT) |
4857 ((u64)rp->syn_window << RDC_RED_PARA_WIN_SYN_SHIFT) |
4858 ((u64)rp->syn_threshold << RDC_RED_PARA_THRE_SYN_SHIFT));
4859 nw64(RDC_RED_PARA(rp->rx_channel), val);
4860 }
4861
4862 static int niu_compute_rbr_cfig_b(struct rx_ring_info *rp, u64 *ret)
4863 {
4864 u64 val = 0;
4865
4866 *ret = 0;
4867 switch (rp->rbr_block_size) {
4868 case 4 * 1024:
4869 val |= (RBR_BLKSIZE_4K << RBR_CFIG_B_BLKSIZE_SHIFT);
4870 break;
4871 case 8 * 1024:
4872 val |= (RBR_BLKSIZE_8K << RBR_CFIG_B_BLKSIZE_SHIFT);
4873 break;
4874 case 16 * 1024:
4875 val |= (RBR_BLKSIZE_16K << RBR_CFIG_B_BLKSIZE_SHIFT);
4876 break;
4877 case 32 * 1024:
4878 val |= (RBR_BLKSIZE_32K << RBR_CFIG_B_BLKSIZE_SHIFT);
4879 break;
4880 default:
4881 return -EINVAL;
4882 }
4883 val |= RBR_CFIG_B_VLD2;
4884 switch (rp->rbr_sizes[2]) {
4885 case 2 * 1024:
4886 val |= (RBR_BUFSZ2_2K << RBR_CFIG_B_BUFSZ2_SHIFT);
4887 break;
4888 case 4 * 1024:
4889 val |= (RBR_BUFSZ2_4K << RBR_CFIG_B_BUFSZ2_SHIFT);
4890 break;
4891 case 8 * 1024:
4892 val |= (RBR_BUFSZ2_8K << RBR_CFIG_B_BUFSZ2_SHIFT);
4893 break;
4894 case 16 * 1024:
4895 val |= (RBR_BUFSZ2_16K << RBR_CFIG_B_BUFSZ2_SHIFT);
4896 break;
4897
4898 default:
4899 return -EINVAL;
4900 }
4901 val |= RBR_CFIG_B_VLD1;
4902 switch (rp->rbr_sizes[1]) {
4903 case 1 * 1024:
4904 val |= (RBR_BUFSZ1_1K << RBR_CFIG_B_BUFSZ1_SHIFT);
4905 break;
4906 case 2 * 1024:
4907 val |= (RBR_BUFSZ1_2K << RBR_CFIG_B_BUFSZ1_SHIFT);
4908 break;
4909 case 4 * 1024:
4910 val |= (RBR_BUFSZ1_4K << RBR_CFIG_B_BUFSZ1_SHIFT);
4911 break;
4912 case 8 * 1024:
4913 val |= (RBR_BUFSZ1_8K << RBR_CFIG_B_BUFSZ1_SHIFT);
4914 break;
4915
4916 default:
4917 return -EINVAL;
4918 }
4919 val |= RBR_CFIG_B_VLD0;
4920 switch (rp->rbr_sizes[0]) {
4921 case 256:
4922 val |= (RBR_BUFSZ0_256 << RBR_CFIG_B_BUFSZ0_SHIFT);
4923 break;
4924 case 512:
4925 val |= (RBR_BUFSZ0_512 << RBR_CFIG_B_BUFSZ0_SHIFT);
4926 break;
4927 case 1 * 1024:
4928 val |= (RBR_BUFSZ0_1K << RBR_CFIG_B_BUFSZ0_SHIFT);
4929 break;
4930 case 2 * 1024:
4931 val |= (RBR_BUFSZ0_2K << RBR_CFIG_B_BUFSZ0_SHIFT);
4932 break;
4933
4934 default:
4935 return -EINVAL;
4936 }
4937
4938 *ret = val;
4939 return 0;
4940 }
4941
4942 static int niu_enable_rx_channel(struct niu *np, int channel, int on)
4943 {
4944 u64 val = nr64(RXDMA_CFIG1(channel));
4945 int limit;
4946
4947 if (on)
4948 val |= RXDMA_CFIG1_EN;
4949 else
4950 val &= ~RXDMA_CFIG1_EN;
4951 nw64(RXDMA_CFIG1(channel), val);
4952
4953 limit = 1000;
4954 while (--limit > 0) {
4955 if (nr64(RXDMA_CFIG1(channel)) & RXDMA_CFIG1_QST)
4956 break;
4957 udelay(10);
4958 }
4959 if (limit <= 0)
4960 return -ENODEV;
4961 return 0;
4962 }
4963
4964 static int niu_init_one_rx_channel(struct niu *np, struct rx_ring_info *rp)
4965 {
4966 int err, channel = rp->rx_channel;
4967 u64 val;
4968
4969 err = niu_rx_channel_reset(np, channel);
4970 if (err)
4971 return err;
4972
4973 err = niu_rx_channel_lpage_init(np, channel);
4974 if (err)
4975 return err;
4976
4977 niu_rx_channel_wred_init(np, rp);
4978
4979 nw64(RX_DMA_ENT_MSK(channel), RX_DMA_ENT_MSK_RBR_EMPTY);
4980 nw64(RX_DMA_CTL_STAT(channel),
4981 (RX_DMA_CTL_STAT_MEX |
4982 RX_DMA_CTL_STAT_RCRTHRES |
4983 RX_DMA_CTL_STAT_RCRTO |
4984 RX_DMA_CTL_STAT_RBR_EMPTY));
4985 nw64(RXDMA_CFIG1(channel), rp->mbox_dma >> 32);
4986 nw64(RXDMA_CFIG2(channel), (rp->mbox_dma & 0x00000000ffffffc0));
4987 nw64(RBR_CFIG_A(channel),
4988 ((u64)rp->rbr_table_size << RBR_CFIG_A_LEN_SHIFT) |
4989 (rp->rbr_dma & (RBR_CFIG_A_STADDR_BASE | RBR_CFIG_A_STADDR)));
4990 err = niu_compute_rbr_cfig_b(rp, &val);
4991 if (err)
4992 return err;
4993 nw64(RBR_CFIG_B(channel), val);
4994 nw64(RCRCFIG_A(channel),
4995 ((u64)rp->rcr_table_size << RCRCFIG_A_LEN_SHIFT) |
4996 (rp->rcr_dma & (RCRCFIG_A_STADDR_BASE | RCRCFIG_A_STADDR)));
4997 nw64(RCRCFIG_B(channel),
4998 ((u64)rp->rcr_pkt_threshold << RCRCFIG_B_PTHRES_SHIFT) |
4999 RCRCFIG_B_ENTOUT |
5000 ((u64)rp->rcr_timeout << RCRCFIG_B_TIMEOUT_SHIFT));
5001
5002 err = niu_enable_rx_channel(np, channel, 1);
5003 if (err)
5004 return err;
5005
5006 nw64(RBR_KICK(channel), rp->rbr_index);
5007
5008 val = nr64(RX_DMA_CTL_STAT(channel));
5009 val |= RX_DMA_CTL_STAT_RBR_EMPTY;
5010 nw64(RX_DMA_CTL_STAT(channel), val);
5011
5012 return 0;
5013 }
5014
5015 static int niu_init_rx_channels(struct niu *np)
5016 {
5017 unsigned long flags;
5018 u64 seed = jiffies_64;
5019 int err, i;
5020
5021 niu_lock_parent(np, flags);
5022 nw64(RX_DMA_CK_DIV, np->parent->rxdma_clock_divider);
5023 nw64(RED_RAN_INIT, RED_RAN_INIT_OPMODE | (seed & RED_RAN_INIT_VAL));
5024 niu_unlock_parent(np, flags);
5025
5026 /* XXX RXDMA 32bit mode? XXX */
5027
5028 niu_init_rdc_groups(np);
5029 niu_init_drr_weight(np);
5030
5031 err = niu_init_hostinfo(np);
5032 if (err)
5033 return err;
5034
5035 for (i = 0; i < np->num_rx_rings; i++) {
5036 struct rx_ring_info *rp = &np->rx_rings[i];
5037
5038 err = niu_init_one_rx_channel(np, rp);
5039 if (err)
5040 return err;
5041 }
5042
5043 return 0;
5044 }
5045
5046 static int niu_set_ip_frag_rule(struct niu *np)
5047 {
5048 struct niu_parent *parent = np->parent;
5049 struct niu_classifier *cp = &np->clas;
5050 struct niu_tcam_entry *tp;
5051 int index, err;
5052
5053 index = cp->tcam_top;
5054 tp = &parent->tcam[index];
5055
5056 /* Note that the noport bit is the same in both ipv4 and
5057 * ipv6 format TCAM entries.
5058 */
5059 memset(tp, 0, sizeof(*tp));
5060 tp->key[1] = TCAM_V4KEY1_NOPORT;
5061 tp->key_mask[1] = TCAM_V4KEY1_NOPORT;
5062 tp->assoc_data = (TCAM_ASSOCDATA_TRES_USE_OFFSET |
5063 ((u64)0 << TCAM_ASSOCDATA_OFFSET_SHIFT));
5064 err = tcam_write(np, index, tp->key, tp->key_mask);
5065 if (err)
5066 return err;
5067 err = tcam_assoc_write(np, index, tp->assoc_data);
5068 if (err)
5069 return err;
5070 tp->valid = 1;
5071 cp->tcam_valid_entries++;
5072
5073 return 0;
5074 }
5075
5076 static int niu_init_classifier_hw(struct niu *np)
5077 {
5078 struct niu_parent *parent = np->parent;
5079 struct niu_classifier *cp = &np->clas;
5080 int i, err;
5081
5082 nw64(H1POLY, cp->h1_init);
5083 nw64(H2POLY, cp->h2_init);
5084
5085 err = niu_init_hostinfo(np);
5086 if (err)
5087 return err;
5088
5089 for (i = 0; i < ENET_VLAN_TBL_NUM_ENTRIES; i++) {
5090 struct niu_vlan_rdc *vp = &cp->vlan_mappings[i];
5091
5092 vlan_tbl_write(np, i, np->port,
5093 vp->vlan_pref, vp->rdc_num);
5094 }
5095
5096 for (i = 0; i < cp->num_alt_mac_mappings; i++) {
5097 struct niu_altmac_rdc *ap = &cp->alt_mac_mappings[i];
5098
5099 err = niu_set_alt_mac_rdc_table(np, ap->alt_mac_num,
5100 ap->rdc_num, ap->mac_pref);
5101 if (err)
5102 return err;
5103 }
5104
5105 for (i = CLASS_CODE_USER_PROG1; i <= CLASS_CODE_SCTP_IPV6; i++) {
5106 int index = i - CLASS_CODE_USER_PROG1;
5107
5108 err = niu_set_tcam_key(np, i, parent->tcam_key[index]);
5109 if (err)
5110 return err;
5111 err = niu_set_flow_key(np, i, parent->flow_key[index]);
5112 if (err)
5113 return err;
5114 }
5115
5116 err = niu_set_ip_frag_rule(np);
5117 if (err)
5118 return err;
5119
5120 tcam_enable(np, 1);
5121
5122 return 0;
5123 }
5124
5125 static int niu_zcp_write(struct niu *np, int index, u64 *data)
5126 {
5127 nw64(ZCP_RAM_DATA0, data[0]);
5128 nw64(ZCP_RAM_DATA1, data[1]);
5129 nw64(ZCP_RAM_DATA2, data[2]);
5130 nw64(ZCP_RAM_DATA3, data[3]);
5131 nw64(ZCP_RAM_DATA4, data[4]);
5132 nw64(ZCP_RAM_BE, ZCP_RAM_BE_VAL);
5133 nw64(ZCP_RAM_ACC,
5134 (ZCP_RAM_ACC_WRITE |
5135 (0 << ZCP_RAM_ACC_ZFCID_SHIFT) |
5136 (ZCP_RAM_SEL_CFIFO(np->port) << ZCP_RAM_ACC_RAM_SEL_SHIFT)));
5137
5138 return niu_wait_bits_clear(np, ZCP_RAM_ACC, ZCP_RAM_ACC_BUSY,
5139 1000, 100);
5140 }
5141
5142 static int niu_zcp_read(struct niu *np, int index, u64 *data)
5143 {
5144 int err;
5145
5146 err = niu_wait_bits_clear(np, ZCP_RAM_ACC, ZCP_RAM_ACC_BUSY,
5147 1000, 100);
5148 if (err) {
5149 dev_err(np->device, PFX "%s: ZCP read busy won't clear, "
5150 "ZCP_RAM_ACC[%llx]\n", np->dev->name,
5151 (unsigned long long) nr64(ZCP_RAM_ACC));
5152 return err;
5153 }
5154
5155 nw64(ZCP_RAM_ACC,
5156 (ZCP_RAM_ACC_READ |
5157 (0 << ZCP_RAM_ACC_ZFCID_SHIFT) |
5158 (ZCP_RAM_SEL_CFIFO(np->port) << ZCP_RAM_ACC_RAM_SEL_SHIFT)));
5159
5160 err = niu_wait_bits_clear(np, ZCP_RAM_ACC, ZCP_RAM_ACC_BUSY,
5161 1000, 100);
5162 if (err) {
5163 dev_err(np->device, PFX "%s: ZCP read busy2 won't clear, "
5164 "ZCP_RAM_ACC[%llx]\n", np->dev->name,
5165 (unsigned long long) nr64(ZCP_RAM_ACC));
5166 return err;
5167 }
5168
5169 data[0] = nr64(ZCP_RAM_DATA0);
5170 data[1] = nr64(ZCP_RAM_DATA1);
5171 data[2] = nr64(ZCP_RAM_DATA2);
5172 data[3] = nr64(ZCP_RAM_DATA3);
5173 data[4] = nr64(ZCP_RAM_DATA4);
5174
5175 return 0;
5176 }
5177
5178 static void niu_zcp_cfifo_reset(struct niu *np)
5179 {
5180 u64 val = nr64(RESET_CFIFO);
5181
5182 val |= RESET_CFIFO_RST(np->port);
5183 nw64(RESET_CFIFO, val);
5184 udelay(10);
5185
5186 val &= ~RESET_CFIFO_RST(np->port);
5187 nw64(RESET_CFIFO, val);
5188 }
5189
5190 static int niu_init_zcp(struct niu *np)
5191 {
5192 u64 data[5], rbuf[5];
5193 int i, max, err;
5194
5195 if (np->parent->plat_type != PLAT_TYPE_NIU) {
5196 if (np->port == 0 || np->port == 1)
5197 max = ATLAS_P0_P1_CFIFO_ENTRIES;
5198 else
5199 max = ATLAS_P2_P3_CFIFO_ENTRIES;
5200 } else
5201 max = NIU_CFIFO_ENTRIES;
5202
5203 data[0] = 0;
5204 data[1] = 0;
5205 data[2] = 0;
5206 data[3] = 0;
5207 data[4] = 0;
5208
5209 for (i = 0; i < max; i++) {
5210 err = niu_zcp_write(np, i, data);
5211 if (err)
5212 return err;
5213 err = niu_zcp_read(np, i, rbuf);
5214 if (err)
5215 return err;
5216 }
5217
5218 niu_zcp_cfifo_reset(np);
5219 nw64(CFIFO_ECC(np->port), 0);
5220 nw64(ZCP_INT_STAT, ZCP_INT_STAT_ALL);
5221 (void) nr64(ZCP_INT_STAT);
5222 nw64(ZCP_INT_MASK, ZCP_INT_MASK_ALL);
5223
5224 return 0;
5225 }
5226
5227 static void niu_ipp_write(struct niu *np, int index, u64 *data)
5228 {
5229 u64 val = nr64_ipp(IPP_CFIG);
5230
5231 nw64_ipp(IPP_CFIG, val | IPP_CFIG_DFIFO_PIO_W);
5232 nw64_ipp(IPP_DFIFO_WR_PTR, index);
5233 nw64_ipp(IPP_DFIFO_WR0, data[0]);
5234 nw64_ipp(IPP_DFIFO_WR1, data[1]);
5235 nw64_ipp(IPP_DFIFO_WR2, data[2]);
5236 nw64_ipp(IPP_DFIFO_WR3, data[3]);
5237 nw64_ipp(IPP_DFIFO_WR4, data[4]);
5238 nw64_ipp(IPP_CFIG, val & ~IPP_CFIG_DFIFO_PIO_W);
5239 }
5240
5241 static void niu_ipp_read(struct niu *np, int index, u64 *data)
5242 {
5243 nw64_ipp(IPP_DFIFO_RD_PTR, index);
5244 data[0] = nr64_ipp(IPP_DFIFO_RD0);
5245 data[1] = nr64_ipp(IPP_DFIFO_RD1);
5246 data[2] = nr64_ipp(IPP_DFIFO_RD2);
5247 data[3] = nr64_ipp(IPP_DFIFO_RD3);
5248 data[4] = nr64_ipp(IPP_DFIFO_RD4);
5249 }
5250
5251 static int niu_ipp_reset(struct niu *np)
5252 {
5253 return niu_set_and_wait_clear_ipp(np, IPP_CFIG, IPP_CFIG_SOFT_RST,
5254 1000, 100, "IPP_CFIG");
5255 }
5256
5257 static int niu_init_ipp(struct niu *np)
5258 {
5259 u64 data[5], rbuf[5], val;
5260 int i, max, err;
5261
5262 if (np->parent->plat_type != PLAT_TYPE_NIU) {
5263 if (np->port == 0 || np->port == 1)
5264 max = ATLAS_P0_P1_DFIFO_ENTRIES;
5265 else
5266 max = ATLAS_P2_P3_DFIFO_ENTRIES;
5267 } else
5268 max = NIU_DFIFO_ENTRIES;
5269
5270 data[0] = 0;
5271 data[1] = 0;
5272 data[2] = 0;
5273 data[3] = 0;
5274 data[4] = 0;
5275
5276 for (i = 0; i < max; i++) {
5277 niu_ipp_write(np, i, data);
5278 niu_ipp_read(np, i, rbuf);
5279 }
5280
5281 (void) nr64_ipp(IPP_INT_STAT);
5282 (void) nr64_ipp(IPP_INT_STAT);
5283
5284 err = niu_ipp_reset(np);
5285 if (err)
5286 return err;
5287
5288 (void) nr64_ipp(IPP_PKT_DIS);
5289 (void) nr64_ipp(IPP_BAD_CS_CNT);
5290 (void) nr64_ipp(IPP_ECC);
5291
5292 (void) nr64_ipp(IPP_INT_STAT);
5293
5294 nw64_ipp(IPP_MSK, ~IPP_MSK_ALL);
5295
5296 val = nr64_ipp(IPP_CFIG);
5297 val &= ~IPP_CFIG_IP_MAX_PKT;
5298 val |= (IPP_CFIG_IPP_ENABLE |
5299 IPP_CFIG_DFIFO_ECC_EN |
5300 IPP_CFIG_DROP_BAD_CRC |
5301 IPP_CFIG_CKSUM_EN |
5302 (0x1ffff << IPP_CFIG_IP_MAX_PKT_SHIFT));
5303 nw64_ipp(IPP_CFIG, val);
5304
5305 return 0;
5306 }
5307
5308 static void niu_handle_led(struct niu *np, int status)
5309 {
5310 u64 val;
5311 val = nr64_mac(XMAC_CONFIG);
5312
5313 if ((np->flags & NIU_FLAGS_10G) != 0 &&
5314 (np->flags & NIU_FLAGS_FIBER) != 0) {
5315 if (status) {
5316 val |= XMAC_CONFIG_LED_POLARITY;
5317 val &= ~XMAC_CONFIG_FORCE_LED_ON;
5318 } else {
5319 val |= XMAC_CONFIG_FORCE_LED_ON;
5320 val &= ~XMAC_CONFIG_LED_POLARITY;
5321 }
5322 }
5323
5324 nw64_mac(XMAC_CONFIG, val);
5325 }
5326
5327 static void niu_init_xif_xmac(struct niu *np)
5328 {
5329 struct niu_link_config *lp = &np->link_config;
5330 u64 val;
5331
5332 if (np->flags & NIU_FLAGS_XCVR_SERDES) {
5333 val = nr64(MIF_CONFIG);
5334 val |= MIF_CONFIG_ATCA_GE;
5335 nw64(MIF_CONFIG, val);
5336 }
5337
5338 val = nr64_mac(XMAC_CONFIG);
5339 val &= ~XMAC_CONFIG_SEL_POR_CLK_SRC;
5340
5341 val |= XMAC_CONFIG_TX_OUTPUT_EN;
5342
5343 if (lp->loopback_mode == LOOPBACK_MAC) {
5344 val &= ~XMAC_CONFIG_SEL_POR_CLK_SRC;
5345 val |= XMAC_CONFIG_LOOPBACK;
5346 } else {
5347 val &= ~XMAC_CONFIG_LOOPBACK;
5348 }
5349
5350 if (np->flags & NIU_FLAGS_10G) {
5351 val &= ~XMAC_CONFIG_LFS_DISABLE;
5352 } else {
5353 val |= XMAC_CONFIG_LFS_DISABLE;
5354 if (!(np->flags & NIU_FLAGS_FIBER) &&
5355 !(np->flags & NIU_FLAGS_XCVR_SERDES))
5356 val |= XMAC_CONFIG_1G_PCS_BYPASS;
5357 else
5358 val &= ~XMAC_CONFIG_1G_PCS_BYPASS;
5359 }
5360
5361 val &= ~XMAC_CONFIG_10G_XPCS_BYPASS;
5362
5363 if (lp->active_speed == SPEED_100)
5364 val |= XMAC_CONFIG_SEL_CLK_25MHZ;
5365 else
5366 val &= ~XMAC_CONFIG_SEL_CLK_25MHZ;
5367
5368 nw64_mac(XMAC_CONFIG, val);
5369
5370 val = nr64_mac(XMAC_CONFIG);
5371 val &= ~XMAC_CONFIG_MODE_MASK;
5372 if (np->flags & NIU_FLAGS_10G) {
5373 val |= XMAC_CONFIG_MODE_XGMII;
5374 } else {
5375 if (lp->active_speed == SPEED_1000)
5376 val |= XMAC_CONFIG_MODE_GMII;
5377 else
5378 val |= XMAC_CONFIG_MODE_MII;
5379 }
5380
5381 nw64_mac(XMAC_CONFIG, val);
5382 }
5383
5384 static void niu_init_xif_bmac(struct niu *np)
5385 {
5386 struct niu_link_config *lp = &np->link_config;
5387 u64 val;
5388
5389 val = BMAC_XIF_CONFIG_TX_OUTPUT_EN;
5390
5391 if (lp->loopback_mode == LOOPBACK_MAC)
5392 val |= BMAC_XIF_CONFIG_MII_LOOPBACK;
5393 else
5394 val &= ~BMAC_XIF_CONFIG_MII_LOOPBACK;
5395
5396 if (lp->active_speed == SPEED_1000)
5397 val |= BMAC_XIF_CONFIG_GMII_MODE;
5398 else
5399 val &= ~BMAC_XIF_CONFIG_GMII_MODE;
5400
5401 val &= ~(BMAC_XIF_CONFIG_LINK_LED |
5402 BMAC_XIF_CONFIG_LED_POLARITY);
5403
5404 if (!(np->flags & NIU_FLAGS_10G) &&
5405 !(np->flags & NIU_FLAGS_FIBER) &&
5406 lp->active_speed == SPEED_100)
5407 val |= BMAC_XIF_CONFIG_25MHZ_CLOCK;
5408 else
5409 val &= ~BMAC_XIF_CONFIG_25MHZ_CLOCK;
5410
5411 nw64_mac(BMAC_XIF_CONFIG, val);
5412 }
5413
5414 static void niu_init_xif(struct niu *np)
5415 {
5416 if (np->flags & NIU_FLAGS_XMAC)
5417 niu_init_xif_xmac(np);
5418 else
5419 niu_init_xif_bmac(np);
5420 }
5421
5422 static void niu_pcs_mii_reset(struct niu *np)
5423 {
5424 int limit = 1000;
5425 u64 val = nr64_pcs(PCS_MII_CTL);
5426 val |= PCS_MII_CTL_RST;
5427 nw64_pcs(PCS_MII_CTL, val);
5428 while ((--limit >= 0) && (val & PCS_MII_CTL_RST)) {
5429 udelay(100);
5430 val = nr64_pcs(PCS_MII_CTL);
5431 }
5432 }
5433
5434 static void niu_xpcs_reset(struct niu *np)
5435 {
5436 int limit = 1000;
5437 u64 val = nr64_xpcs(XPCS_CONTROL1);
5438 val |= XPCS_CONTROL1_RESET;
5439 nw64_xpcs(XPCS_CONTROL1, val);
5440 while ((--limit >= 0) && (val & XPCS_CONTROL1_RESET)) {
5441 udelay(100);
5442 val = nr64_xpcs(XPCS_CONTROL1);
5443 }
5444 }
5445
5446 static int niu_init_pcs(struct niu *np)
5447 {
5448 struct niu_link_config *lp = &np->link_config;
5449 u64 val;
5450
5451 switch (np->flags & (NIU_FLAGS_10G |
5452 NIU_FLAGS_FIBER |
5453 NIU_FLAGS_XCVR_SERDES)) {
5454 case NIU_FLAGS_FIBER:
5455 /* 1G fiber */
5456 nw64_pcs(PCS_CONF, PCS_CONF_MASK | PCS_CONF_ENABLE);
5457 nw64_pcs(PCS_DPATH_MODE, 0);
5458 niu_pcs_mii_reset(np);
5459 break;
5460
5461 case NIU_FLAGS_10G:
5462 case NIU_FLAGS_10G | NIU_FLAGS_FIBER:
5463 case NIU_FLAGS_10G | NIU_FLAGS_XCVR_SERDES:
5464 /* 10G SERDES */
5465 if (!(np->flags & NIU_FLAGS_XMAC))
5466 return -EINVAL;
5467
5468 /* 10G copper or fiber */
5469 val = nr64_mac(XMAC_CONFIG);
5470 val &= ~XMAC_CONFIG_10G_XPCS_BYPASS;
5471 nw64_mac(XMAC_CONFIG, val);
5472
5473 niu_xpcs_reset(np);
5474
5475 val = nr64_xpcs(XPCS_CONTROL1);
5476 if (lp->loopback_mode == LOOPBACK_PHY)
5477 val |= XPCS_CONTROL1_LOOPBACK;
5478 else
5479 val &= ~XPCS_CONTROL1_LOOPBACK;
5480 nw64_xpcs(XPCS_CONTROL1, val);
5481
5482 nw64_xpcs(XPCS_DESKEW_ERR_CNT, 0);
5483 (void) nr64_xpcs(XPCS_SYMERR_CNT01);
5484 (void) nr64_xpcs(XPCS_SYMERR_CNT23);
5485 break;
5486
5487
5488 case NIU_FLAGS_XCVR_SERDES:
5489 /* 1G SERDES */
5490 niu_pcs_mii_reset(np);
5491 nw64_pcs(PCS_CONF, PCS_CONF_MASK | PCS_CONF_ENABLE);
5492 nw64_pcs(PCS_DPATH_MODE, 0);
5493 break;
5494
5495 case 0:
5496 /* 1G copper */
5497 case NIU_FLAGS_XCVR_SERDES | NIU_FLAGS_FIBER:
5498 /* 1G RGMII FIBER */
5499 nw64_pcs(PCS_DPATH_MODE, PCS_DPATH_MODE_MII);
5500 niu_pcs_mii_reset(np);
5501 break;
5502
5503 default:
5504 return -EINVAL;
5505 }
5506
5507 return 0;
5508 }
5509
5510 static int niu_reset_tx_xmac(struct niu *np)
5511 {
5512 return niu_set_and_wait_clear_mac(np, XTXMAC_SW_RST,
5513 (XTXMAC_SW_RST_REG_RS |
5514 XTXMAC_SW_RST_SOFT_RST),
5515 1000, 100, "XTXMAC_SW_RST");
5516 }
5517
5518 static int niu_reset_tx_bmac(struct niu *np)
5519 {
5520 int limit;
5521
5522 nw64_mac(BTXMAC_SW_RST, BTXMAC_SW_RST_RESET);
5523 limit = 1000;
5524 while (--limit >= 0) {
5525 if (!(nr64_mac(BTXMAC_SW_RST) & BTXMAC_SW_RST_RESET))
5526 break;
5527 udelay(100);
5528 }
5529 if (limit < 0) {
5530 dev_err(np->device, PFX "Port %u TX BMAC would not reset, "
5531 "BTXMAC_SW_RST[%llx]\n",
5532 np->port,
5533 (unsigned long long) nr64_mac(BTXMAC_SW_RST));
5534 return -ENODEV;
5535 }
5536
5537 return 0;
5538 }
5539
5540 static int niu_reset_tx_mac(struct niu *np)
5541 {
5542 if (np->flags & NIU_FLAGS_XMAC)
5543 return niu_reset_tx_xmac(np);
5544 else
5545 return niu_reset_tx_bmac(np);
5546 }
5547
5548 static void niu_init_tx_xmac(struct niu *np, u64 min, u64 max)
5549 {
5550 u64 val;
5551
5552 val = nr64_mac(XMAC_MIN);
5553 val &= ~(XMAC_MIN_TX_MIN_PKT_SIZE |
5554 XMAC_MIN_RX_MIN_PKT_SIZE);
5555 val |= (min << XMAC_MIN_RX_MIN_PKT_SIZE_SHFT);
5556 val |= (min << XMAC_MIN_TX_MIN_PKT_SIZE_SHFT);
5557 nw64_mac(XMAC_MIN, val);
5558
5559 nw64_mac(XMAC_MAX, max);
5560
5561 nw64_mac(XTXMAC_STAT_MSK, ~(u64)0);
5562
5563 val = nr64_mac(XMAC_IPG);
5564 if (np->flags & NIU_FLAGS_10G) {
5565 val &= ~XMAC_IPG_IPG_XGMII;
5566 val |= (IPG_12_15_XGMII << XMAC_IPG_IPG_XGMII_SHIFT);
5567 } else {
5568 val &= ~XMAC_IPG_IPG_MII_GMII;
5569 val |= (IPG_12_MII_GMII << XMAC_IPG_IPG_MII_GMII_SHIFT);
5570 }
5571 nw64_mac(XMAC_IPG, val);
5572
5573 val = nr64_mac(XMAC_CONFIG);
5574 val &= ~(XMAC_CONFIG_ALWAYS_NO_CRC |
5575 XMAC_CONFIG_STRETCH_MODE |
5576 XMAC_CONFIG_VAR_MIN_IPG_EN |
5577 XMAC_CONFIG_TX_ENABLE);
5578 nw64_mac(XMAC_CONFIG, val);
5579
5580 nw64_mac(TXMAC_FRM_CNT, 0);
5581 nw64_mac(TXMAC_BYTE_CNT, 0);
5582 }
5583
5584 static void niu_init_tx_bmac(struct niu *np, u64 min, u64 max)
5585 {
5586 u64 val;
5587
5588 nw64_mac(BMAC_MIN_FRAME, min);
5589 nw64_mac(BMAC_MAX_FRAME, max);
5590
5591 nw64_mac(BTXMAC_STATUS_MASK, ~(u64)0);
5592 nw64_mac(BMAC_CTRL_TYPE, 0x8808);
5593 nw64_mac(BMAC_PREAMBLE_SIZE, 7);
5594
5595 val = nr64_mac(BTXMAC_CONFIG);
5596 val &= ~(BTXMAC_CONFIG_FCS_DISABLE |
5597 BTXMAC_CONFIG_ENABLE);
5598 nw64_mac(BTXMAC_CONFIG, val);
5599 }
5600
5601 static void niu_init_tx_mac(struct niu *np)
5602 {
5603 u64 min, max;
5604
5605 min = 64;
5606 if (np->dev->mtu > ETH_DATA_LEN)
5607 max = 9216;
5608 else
5609 max = 1522;
5610
5611 /* The XMAC_MIN register only accepts values for TX min which
5612 * have the low 3 bits cleared.
5613 */
5614 BUG_ON(min & 0x7);
5615
5616 if (np->flags & NIU_FLAGS_XMAC)
5617 niu_init_tx_xmac(np, min, max);
5618 else
5619 niu_init_tx_bmac(np, min, max);
5620 }
5621
5622 static int niu_reset_rx_xmac(struct niu *np)
5623 {
5624 int limit;
5625
5626 nw64_mac(XRXMAC_SW_RST,
5627 XRXMAC_SW_RST_REG_RS | XRXMAC_SW_RST_SOFT_RST);
5628 limit = 1000;
5629 while (--limit >= 0) {
5630 if (!(nr64_mac(XRXMAC_SW_RST) & (XRXMAC_SW_RST_REG_RS |
5631 XRXMAC_SW_RST_SOFT_RST)))
5632 break;
5633 udelay(100);
5634 }
5635 if (limit < 0) {
5636 dev_err(np->device, PFX "Port %u RX XMAC would not reset, "
5637 "XRXMAC_SW_RST[%llx]\n",
5638 np->port,
5639 (unsigned long long) nr64_mac(XRXMAC_SW_RST));
5640 return -ENODEV;
5641 }
5642
5643 return 0;
5644 }
5645
5646 static int niu_reset_rx_bmac(struct niu *np)
5647 {
5648 int limit;
5649
5650 nw64_mac(BRXMAC_SW_RST, BRXMAC_SW_RST_RESET);
5651 limit = 1000;
5652 while (--limit >= 0) {
5653 if (!(nr64_mac(BRXMAC_SW_RST) & BRXMAC_SW_RST_RESET))
5654 break;
5655 udelay(100);
5656 }
5657 if (limit < 0) {
5658 dev_err(np->device, PFX "Port %u RX BMAC would not reset, "
5659 "BRXMAC_SW_RST[%llx]\n",
5660 np->port,
5661 (unsigned long long) nr64_mac(BRXMAC_SW_RST));
5662 return -ENODEV;
5663 }
5664
5665 return 0;
5666 }
5667
5668 static int niu_reset_rx_mac(struct niu *np)
5669 {
5670 if (np->flags & NIU_FLAGS_XMAC)
5671 return niu_reset_rx_xmac(np);
5672 else
5673 return niu_reset_rx_bmac(np);
5674 }
5675
5676 static void niu_init_rx_xmac(struct niu *np)
5677 {
5678 struct niu_parent *parent = np->parent;
5679 struct niu_rdc_tables *tp = &parent->rdc_group_cfg[np->port];
5680 int first_rdc_table = tp->first_table_num;
5681 unsigned long i;
5682 u64 val;
5683
5684 nw64_mac(XMAC_ADD_FILT0, 0);
5685 nw64_mac(XMAC_ADD_FILT1, 0);
5686 nw64_mac(XMAC_ADD_FILT2, 0);
5687 nw64_mac(XMAC_ADD_FILT12_MASK, 0);
5688 nw64_mac(XMAC_ADD_FILT00_MASK, 0);
5689 for (i = 0; i < MAC_NUM_HASH; i++)
5690 nw64_mac(XMAC_HASH_TBL(i), 0);
5691 nw64_mac(XRXMAC_STAT_MSK, ~(u64)0);
5692 niu_set_primary_mac_rdc_table(np, first_rdc_table, 1);
5693 niu_set_multicast_mac_rdc_table(np, first_rdc_table, 1);
5694
5695 val = nr64_mac(XMAC_CONFIG);
5696 val &= ~(XMAC_CONFIG_RX_MAC_ENABLE |
5697 XMAC_CONFIG_PROMISCUOUS |
5698 XMAC_CONFIG_PROMISC_GROUP |
5699 XMAC_CONFIG_ERR_CHK_DIS |
5700 XMAC_CONFIG_RX_CRC_CHK_DIS |
5701 XMAC_CONFIG_RESERVED_MULTICAST |
5702 XMAC_CONFIG_RX_CODEV_CHK_DIS |
5703 XMAC_CONFIG_ADDR_FILTER_EN |
5704 XMAC_CONFIG_RCV_PAUSE_ENABLE |
5705 XMAC_CONFIG_STRIP_CRC |
5706 XMAC_CONFIG_PASS_FLOW_CTRL |
5707 XMAC_CONFIG_MAC2IPP_PKT_CNT_EN);
5708 val |= (XMAC_CONFIG_HASH_FILTER_EN);
5709 nw64_mac(XMAC_CONFIG, val);
5710
5711 nw64_mac(RXMAC_BT_CNT, 0);
5712 nw64_mac(RXMAC_BC_FRM_CNT, 0);
5713 nw64_mac(RXMAC_MC_FRM_CNT, 0);
5714 nw64_mac(RXMAC_FRAG_CNT, 0);
5715 nw64_mac(RXMAC_HIST_CNT1, 0);
5716 nw64_mac(RXMAC_HIST_CNT2, 0);
5717 nw64_mac(RXMAC_HIST_CNT3, 0);
5718 nw64_mac(RXMAC_HIST_CNT4, 0);
5719 nw64_mac(RXMAC_HIST_CNT5, 0);
5720 nw64_mac(RXMAC_HIST_CNT6, 0);
5721 nw64_mac(RXMAC_HIST_CNT7, 0);
5722 nw64_mac(RXMAC_MPSZER_CNT, 0);
5723 nw64_mac(RXMAC_CRC_ER_CNT, 0);
5724 nw64_mac(RXMAC_CD_VIO_CNT, 0);
5725 nw64_mac(LINK_FAULT_CNT, 0);
5726 }
5727
5728 static void niu_init_rx_bmac(struct niu *np)
5729 {
5730 struct niu_parent *parent = np->parent;
5731 struct niu_rdc_tables *tp = &parent->rdc_group_cfg[np->port];
5732 int first_rdc_table = tp->first_table_num;
5733 unsigned long i;
5734 u64 val;
5735
5736 nw64_mac(BMAC_ADD_FILT0, 0);
5737 nw64_mac(BMAC_ADD_FILT1, 0);
5738 nw64_mac(BMAC_ADD_FILT2, 0);
5739 nw64_mac(BMAC_ADD_FILT12_MASK, 0);
5740 nw64_mac(BMAC_ADD_FILT00_MASK, 0);
5741 for (i = 0; i < MAC_NUM_HASH; i++)
5742 nw64_mac(BMAC_HASH_TBL(i), 0);
5743 niu_set_primary_mac_rdc_table(np, first_rdc_table, 1);
5744 niu_set_multicast_mac_rdc_table(np, first_rdc_table, 1);
5745 nw64_mac(BRXMAC_STATUS_MASK, ~(u64)0);
5746
5747 val = nr64_mac(BRXMAC_CONFIG);
5748 val &= ~(BRXMAC_CONFIG_ENABLE |
5749 BRXMAC_CONFIG_STRIP_PAD |
5750 BRXMAC_CONFIG_STRIP_FCS |
5751 BRXMAC_CONFIG_PROMISC |
5752 BRXMAC_CONFIG_PROMISC_GRP |
5753 BRXMAC_CONFIG_ADDR_FILT_EN |
5754 BRXMAC_CONFIG_DISCARD_DIS);
5755 val |= (BRXMAC_CONFIG_HASH_FILT_EN);
5756 nw64_mac(BRXMAC_CONFIG, val);
5757
5758 val = nr64_mac(BMAC_ADDR_CMPEN);
5759 val |= BMAC_ADDR_CMPEN_EN0;
5760 nw64_mac(BMAC_ADDR_CMPEN, val);
5761 }
5762
5763 static void niu_init_rx_mac(struct niu *np)
5764 {
5765 niu_set_primary_mac(np, np->dev->dev_addr);
5766
5767 if (np->flags & NIU_FLAGS_XMAC)
5768 niu_init_rx_xmac(np);
5769 else
5770 niu_init_rx_bmac(np);
5771 }
5772
5773 static void niu_enable_tx_xmac(struct niu *np, int on)
5774 {
5775 u64 val = nr64_mac(XMAC_CONFIG);
5776
5777 if (on)
5778 val |= XMAC_CONFIG_TX_ENABLE;
5779 else
5780 val &= ~XMAC_CONFIG_TX_ENABLE;
5781 nw64_mac(XMAC_CONFIG, val);
5782 }
5783
5784 static void niu_enable_tx_bmac(struct niu *np, int on)
5785 {
5786 u64 val = nr64_mac(BTXMAC_CONFIG);
5787
5788 if (on)
5789 val |= BTXMAC_CONFIG_ENABLE;
5790 else
5791 val &= ~BTXMAC_CONFIG_ENABLE;
5792 nw64_mac(BTXMAC_CONFIG, val);
5793 }
5794
5795 static void niu_enable_tx_mac(struct niu *np, int on)
5796 {
5797 if (np->flags & NIU_FLAGS_XMAC)
5798 niu_enable_tx_xmac(np, on);
5799 else
5800 niu_enable_tx_bmac(np, on);
5801 }
5802
5803 static void niu_enable_rx_xmac(struct niu *np, int on)
5804 {
5805 u64 val = nr64_mac(XMAC_CONFIG);
5806
5807 val &= ~(XMAC_CONFIG_HASH_FILTER_EN |
5808 XMAC_CONFIG_PROMISCUOUS);
5809
5810 if (np->flags & NIU_FLAGS_MCAST)
5811 val |= XMAC_CONFIG_HASH_FILTER_EN;
5812 if (np->flags & NIU_FLAGS_PROMISC)
5813 val |= XMAC_CONFIG_PROMISCUOUS;
5814
5815 if (on)
5816 val |= XMAC_CONFIG_RX_MAC_ENABLE;
5817 else
5818 val &= ~XMAC_CONFIG_RX_MAC_ENABLE;
5819 nw64_mac(XMAC_CONFIG, val);
5820 }
5821
5822 static void niu_enable_rx_bmac(struct niu *np, int on)
5823 {
5824 u64 val = nr64_mac(BRXMAC_CONFIG);
5825
5826 val &= ~(BRXMAC_CONFIG_HASH_FILT_EN |
5827 BRXMAC_CONFIG_PROMISC);
5828
5829 if (np->flags & NIU_FLAGS_MCAST)
5830 val |= BRXMAC_CONFIG_HASH_FILT_EN;
5831 if (np->flags & NIU_FLAGS_PROMISC)
5832 val |= BRXMAC_CONFIG_PROMISC;
5833
5834 if (on)
5835 val |= BRXMAC_CONFIG_ENABLE;
5836 else
5837 val &= ~BRXMAC_CONFIG_ENABLE;
5838 nw64_mac(BRXMAC_CONFIG, val);
5839 }
5840
5841 static void niu_enable_rx_mac(struct niu *np, int on)
5842 {
5843 if (np->flags & NIU_FLAGS_XMAC)
5844 niu_enable_rx_xmac(np, on);
5845 else
5846 niu_enable_rx_bmac(np, on);
5847 }
5848
5849 static int niu_init_mac(struct niu *np)
5850 {
5851 int err;
5852
5853 niu_init_xif(np);
5854 err = niu_init_pcs(np);
5855 if (err)
5856 return err;
5857
5858 err = niu_reset_tx_mac(np);
5859 if (err)
5860 return err;
5861 niu_init_tx_mac(np);
5862 err = niu_reset_rx_mac(np);
5863 if (err)
5864 return err;
5865 niu_init_rx_mac(np);
5866
5867 /* This looks hookey but the RX MAC reset we just did will
5868 * undo some of the state we setup in niu_init_tx_mac() so we
5869 * have to call it again. In particular, the RX MAC reset will
5870 * set the XMAC_MAX register back to it's default value.
5871 */
5872 niu_init_tx_mac(np);
5873 niu_enable_tx_mac(np, 1);
5874
5875 niu_enable_rx_mac(np, 1);
5876
5877 return 0;
5878 }
5879
5880 static void niu_stop_one_tx_channel(struct niu *np, struct tx_ring_info *rp)
5881 {
5882 (void) niu_tx_channel_stop(np, rp->tx_channel);
5883 }
5884
5885 static void niu_stop_tx_channels(struct niu *np)
5886 {
5887 int i;
5888
5889 for (i = 0; i < np->num_tx_rings; i++) {
5890 struct tx_ring_info *rp = &np->tx_rings[i];
5891
5892 niu_stop_one_tx_channel(np, rp);
5893 }
5894 }
5895
5896 static void niu_reset_one_tx_channel(struct niu *np, struct tx_ring_info *rp)
5897 {
5898 (void) niu_tx_channel_reset(np, rp->tx_channel);
5899 }
5900
5901 static void niu_reset_tx_channels(struct niu *np)
5902 {
5903 int i;
5904
5905 for (i = 0; i < np->num_tx_rings; i++) {
5906 struct tx_ring_info *rp = &np->tx_rings[i];
5907
5908 niu_reset_one_tx_channel(np, rp);
5909 }
5910 }
5911
5912 static void niu_stop_one_rx_channel(struct niu *np, struct rx_ring_info *rp)
5913 {
5914 (void) niu_enable_rx_channel(np, rp->rx_channel, 0);
5915 }
5916
5917 static void niu_stop_rx_channels(struct niu *np)
5918 {
5919 int i;
5920
5921 for (i = 0; i < np->num_rx_rings; i++) {
5922 struct rx_ring_info *rp = &np->rx_rings[i];
5923
5924 niu_stop_one_rx_channel(np, rp);
5925 }
5926 }
5927
5928 static void niu_reset_one_rx_channel(struct niu *np, struct rx_ring_info *rp)
5929 {
5930 int channel = rp->rx_channel;
5931
5932 (void) niu_rx_channel_reset(np, channel);
5933 nw64(RX_DMA_ENT_MSK(channel), RX_DMA_ENT_MSK_ALL);
5934 nw64(RX_DMA_CTL_STAT(channel), 0);
5935 (void) niu_enable_rx_channel(np, channel, 0);
5936 }
5937
5938 static void niu_reset_rx_channels(struct niu *np)
5939 {
5940 int i;
5941
5942 for (i = 0; i < np->num_rx_rings; i++) {
5943 struct rx_ring_info *rp = &np->rx_rings[i];
5944
5945 niu_reset_one_rx_channel(np, rp);
5946 }
5947 }
5948
5949 static void niu_disable_ipp(struct niu *np)
5950 {
5951 u64 rd, wr, val;
5952 int limit;
5953
5954 rd = nr64_ipp(IPP_DFIFO_RD_PTR);
5955 wr = nr64_ipp(IPP_DFIFO_WR_PTR);
5956 limit = 100;
5957 while (--limit >= 0 && (rd != wr)) {
5958 rd = nr64_ipp(IPP_DFIFO_RD_PTR);
5959 wr = nr64_ipp(IPP_DFIFO_WR_PTR);
5960 }
5961 if (limit < 0 &&
5962 (rd != 0 && wr != 1)) {
5963 dev_err(np->device, PFX "%s: IPP would not quiesce, "
5964 "rd_ptr[%llx] wr_ptr[%llx]\n",
5965 np->dev->name,
5966 (unsigned long long) nr64_ipp(IPP_DFIFO_RD_PTR),
5967 (unsigned long long) nr64_ipp(IPP_DFIFO_WR_PTR));
5968 }
5969
5970 val = nr64_ipp(IPP_CFIG);
5971 val &= ~(IPP_CFIG_IPP_ENABLE |
5972 IPP_CFIG_DFIFO_ECC_EN |
5973 IPP_CFIG_DROP_BAD_CRC |
5974 IPP_CFIG_CKSUM_EN);
5975 nw64_ipp(IPP_CFIG, val);
5976
5977 (void) niu_ipp_reset(np);
5978 }
5979
5980 static int niu_init_hw(struct niu *np)
5981 {
5982 int i, err;
5983
5984 niudbg(IFUP, "%s: Initialize TXC\n", np->dev->name);
5985 niu_txc_enable_port(np, 1);
5986 niu_txc_port_dma_enable(np, 1);
5987 niu_txc_set_imask(np, 0);
5988
5989 niudbg(IFUP, "%s: Initialize TX channels\n", np->dev->name);
5990 for (i = 0; i < np->num_tx_rings; i++) {
5991 struct tx_ring_info *rp = &np->tx_rings[i];
5992
5993 err = niu_init_one_tx_channel(np, rp);
5994 if (err)
5995 return err;
5996 }
5997
5998 niudbg(IFUP, "%s: Initialize RX channels\n", np->dev->name);
5999 err = niu_init_rx_channels(np);
6000 if (err)
6001 goto out_uninit_tx_channels;
6002
6003 niudbg(IFUP, "%s: Initialize classifier\n", np->dev->name);
6004 err = niu_init_classifier_hw(np);
6005 if (err)
6006 goto out_uninit_rx_channels;
6007
6008 niudbg(IFUP, "%s: Initialize ZCP\n", np->dev->name);
6009 err = niu_init_zcp(np);
6010 if (err)
6011 goto out_uninit_rx_channels;
6012
6013 niudbg(IFUP, "%s: Initialize IPP\n", np->dev->name);
6014 err = niu_init_ipp(np);
6015 if (err)
6016 goto out_uninit_rx_channels;
6017
6018 niudbg(IFUP, "%s: Initialize MAC\n", np->dev->name);
6019 err = niu_init_mac(np);
6020 if (err)
6021 goto out_uninit_ipp;
6022
6023 return 0;
6024
6025 out_uninit_ipp:
6026 niudbg(IFUP, "%s: Uninit IPP\n", np->dev->name);
6027 niu_disable_ipp(np);
6028
6029 out_uninit_rx_channels:
6030 niudbg(IFUP, "%s: Uninit RX channels\n", np->dev->name);
6031 niu_stop_rx_channels(np);
6032 niu_reset_rx_channels(np);
6033
6034 out_uninit_tx_channels:
6035 niudbg(IFUP, "%s: Uninit TX channels\n", np->dev->name);
6036 niu_stop_tx_channels(np);
6037 niu_reset_tx_channels(np);
6038
6039 return err;
6040 }
6041
6042 static void niu_stop_hw(struct niu *np)
6043 {
6044 niudbg(IFDOWN, "%s: Disable interrupts\n", np->dev->name);
6045 niu_enable_interrupts(np, 0);
6046
6047 niudbg(IFDOWN, "%s: Disable RX MAC\n", np->dev->name);
6048 niu_enable_rx_mac(np, 0);
6049
6050 niudbg(IFDOWN, "%s: Disable IPP\n", np->dev->name);
6051 niu_disable_ipp(np);
6052
6053 niudbg(IFDOWN, "%s: Stop TX channels\n", np->dev->name);
6054 niu_stop_tx_channels(np);
6055
6056 niudbg(IFDOWN, "%s: Stop RX channels\n", np->dev->name);
6057 niu_stop_rx_channels(np);
6058
6059 niudbg(IFDOWN, "%s: Reset TX channels\n", np->dev->name);
6060 niu_reset_tx_channels(np);
6061
6062 niudbg(IFDOWN, "%s: Reset RX channels\n", np->dev->name);
6063 niu_reset_rx_channels(np);
6064 }
6065
6066 static void niu_set_irq_name(struct niu *np)
6067 {
6068 int port = np->port;
6069 int i, j = 1;
6070
6071 sprintf(np->irq_name[0], "%s:MAC", np->dev->name);
6072
6073 if (port == 0) {
6074 sprintf(np->irq_name[1], "%s:MIF", np->dev->name);
6075 sprintf(np->irq_name[2], "%s:SYSERR", np->dev->name);
6076 j = 3;
6077 }
6078
6079 for (i = 0; i < np->num_ldg - j; i++) {
6080 if (i < np->num_rx_rings)
6081 sprintf(np->irq_name[i+j], "%s-rx-%d",
6082 np->dev->name, i);
6083 else if (i < np->num_tx_rings + np->num_rx_rings)
6084 sprintf(np->irq_name[i+j], "%s-tx-%d", np->dev->name,
6085 i - np->num_rx_rings);
6086 }
6087 }
6088
6089 static int niu_request_irq(struct niu *np)
6090 {
6091 int i, j, err;
6092
6093 niu_set_irq_name(np);
6094
6095 err = 0;
6096 for (i = 0; i < np->num_ldg; i++) {
6097 struct niu_ldg *lp = &np->ldg[i];
6098
6099 err = request_irq(lp->irq, niu_interrupt,
6100 IRQF_SHARED | IRQF_SAMPLE_RANDOM,
6101 np->irq_name[i], lp);
6102 if (err)
6103 goto out_free_irqs;
6104
6105 }
6106
6107 return 0;
6108
6109 out_free_irqs:
6110 for (j = 0; j < i; j++) {
6111 struct niu_ldg *lp = &np->ldg[j];
6112
6113 free_irq(lp->irq, lp);
6114 }
6115 return err;
6116 }
6117
6118 static void niu_free_irq(struct niu *np)
6119 {
6120 int i;
6121
6122 for (i = 0; i < np->num_ldg; i++) {
6123 struct niu_ldg *lp = &np->ldg[i];
6124
6125 free_irq(lp->irq, lp);
6126 }
6127 }
6128
6129 static void niu_enable_napi(struct niu *np)
6130 {
6131 int i;
6132
6133 for (i = 0; i < np->num_ldg; i++)
6134 napi_enable(&np->ldg[i].napi);
6135 }
6136
6137 static void niu_disable_napi(struct niu *np)
6138 {
6139 int i;
6140
6141 for (i = 0; i < np->num_ldg; i++)
6142 napi_disable(&np->ldg[i].napi);
6143 }
6144
6145 static int niu_open(struct net_device *dev)
6146 {
6147 struct niu *np = netdev_priv(dev);
6148 int err;
6149
6150 netif_carrier_off(dev);
6151
6152 err = niu_alloc_channels(np);
6153 if (err)
6154 goto out_err;
6155
6156 err = niu_enable_interrupts(np, 0);
6157 if (err)
6158 goto out_free_channels;
6159
6160 err = niu_request_irq(np);
6161 if (err)
6162 goto out_free_channels;
6163
6164 niu_enable_napi(np);
6165
6166 spin_lock_irq(&np->lock);
6167
6168 err = niu_init_hw(np);
6169 if (!err) {
6170 init_timer(&np->timer);
6171 np->timer.expires = jiffies + HZ;
6172 np->timer.data = (unsigned long) np;
6173 np->timer.function = niu_timer;
6174
6175 err = niu_enable_interrupts(np, 1);
6176 if (err)
6177 niu_stop_hw(np);
6178 }
6179
6180 spin_unlock_irq(&np->lock);
6181
6182 if (err) {
6183 niu_disable_napi(np);
6184 goto out_free_irq;
6185 }
6186
6187 netif_tx_start_all_queues(dev);
6188
6189 if (np->link_config.loopback_mode != LOOPBACK_DISABLED)
6190 netif_carrier_on(dev);
6191
6192 add_timer(&np->timer);
6193
6194 return 0;
6195
6196 out_free_irq:
6197 niu_free_irq(np);
6198
6199 out_free_channels:
6200 niu_free_channels(np);
6201
6202 out_err:
6203 return err;
6204 }
6205
6206 static void niu_full_shutdown(struct niu *np, struct net_device *dev)
6207 {
6208 cancel_work_sync(&np->reset_task);
6209
6210 niu_disable_napi(np);
6211 netif_tx_stop_all_queues(dev);
6212
6213 del_timer_sync(&np->timer);
6214
6215 spin_lock_irq(&np->lock);
6216
6217 niu_stop_hw(np);
6218
6219 spin_unlock_irq(&np->lock);
6220 }
6221
6222 static int niu_close(struct net_device *dev)
6223 {
6224 struct niu *np = netdev_priv(dev);
6225
6226 niu_full_shutdown(np, dev);
6227
6228 niu_free_irq(np);
6229
6230 niu_free_channels(np);
6231
6232 niu_handle_led(np, 0);
6233
6234 return 0;
6235 }
6236
6237 static void niu_sync_xmac_stats(struct niu *np)
6238 {
6239 struct niu_xmac_stats *mp = &np->mac_stats.xmac;
6240
6241 mp->tx_frames += nr64_mac(TXMAC_FRM_CNT);
6242 mp->tx_bytes += nr64_mac(TXMAC_BYTE_CNT);
6243
6244 mp->rx_link_faults += nr64_mac(LINK_FAULT_CNT);
6245 mp->rx_align_errors += nr64_mac(RXMAC_ALIGN_ERR_CNT);
6246 mp->rx_frags += nr64_mac(RXMAC_FRAG_CNT);
6247 mp->rx_mcasts += nr64_mac(RXMAC_MC_FRM_CNT);
6248 mp->rx_bcasts += nr64_mac(RXMAC_BC_FRM_CNT);
6249 mp->rx_hist_cnt1 += nr64_mac(RXMAC_HIST_CNT1);
6250 mp->rx_hist_cnt2 += nr64_mac(RXMAC_HIST_CNT2);
6251 mp->rx_hist_cnt3 += nr64_mac(RXMAC_HIST_CNT3);
6252 mp->rx_hist_cnt4 += nr64_mac(RXMAC_HIST_CNT4);
6253 mp->rx_hist_cnt5 += nr64_mac(RXMAC_HIST_CNT5);
6254 mp->rx_hist_cnt6 += nr64_mac(RXMAC_HIST_CNT6);
6255 mp->rx_hist_cnt7 += nr64_mac(RXMAC_HIST_CNT7);
6256 mp->rx_octets += nr64_mac(RXMAC_BT_CNT);
6257 mp->rx_code_violations += nr64_mac(RXMAC_CD_VIO_CNT);
6258 mp->rx_len_errors += nr64_mac(RXMAC_MPSZER_CNT);
6259 mp->rx_crc_errors += nr64_mac(RXMAC_CRC_ER_CNT);
6260 }
6261
6262 static void niu_sync_bmac_stats(struct niu *np)
6263 {
6264 struct niu_bmac_stats *mp = &np->mac_stats.bmac;
6265
6266 mp->tx_bytes += nr64_mac(BTXMAC_BYTE_CNT);
6267 mp->tx_frames += nr64_mac(BTXMAC_FRM_CNT);
6268
6269 mp->rx_frames += nr64_mac(BRXMAC_FRAME_CNT);
6270 mp->rx_align_errors += nr64_mac(BRXMAC_ALIGN_ERR_CNT);
6271 mp->rx_crc_errors += nr64_mac(BRXMAC_ALIGN_ERR_CNT);
6272 mp->rx_len_errors += nr64_mac(BRXMAC_CODE_VIOL_ERR_CNT);
6273 }
6274
6275 static void niu_sync_mac_stats(struct niu *np)
6276 {
6277 if (np->flags & NIU_FLAGS_XMAC)
6278 niu_sync_xmac_stats(np);
6279 else
6280 niu_sync_bmac_stats(np);
6281 }
6282
6283 static void niu_get_rx_stats(struct niu *np)
6284 {
6285 unsigned long pkts, dropped, errors, bytes;
6286 int i;
6287
6288 pkts = dropped = errors = bytes = 0;
6289 for (i = 0; i < np->num_rx_rings; i++) {
6290 struct rx_ring_info *rp = &np->rx_rings[i];
6291
6292 niu_sync_rx_discard_stats(np, rp, 0);
6293
6294 pkts += rp->rx_packets;
6295 bytes += rp->rx_bytes;
6296 dropped += rp->rx_dropped;
6297 errors += rp->rx_errors;
6298 }
6299 np->dev->stats.rx_packets = pkts;
6300 np->dev->stats.rx_bytes = bytes;
6301 np->dev->stats.rx_dropped = dropped;
6302 np->dev->stats.rx_errors = errors;
6303 }
6304
6305 static void niu_get_tx_stats(struct niu *np)
6306 {
6307 unsigned long pkts, errors, bytes;
6308 int i;
6309
6310 pkts = errors = bytes = 0;
6311 for (i = 0; i < np->num_tx_rings; i++) {
6312 struct tx_ring_info *rp = &np->tx_rings[i];
6313
6314 pkts += rp->tx_packets;
6315 bytes += rp->tx_bytes;
6316 errors += rp->tx_errors;
6317 }
6318 np->dev->stats.tx_packets = pkts;
6319 np->dev->stats.tx_bytes = bytes;
6320 np->dev->stats.tx_errors = errors;
6321 }
6322
6323 static struct net_device_stats *niu_get_stats(struct net_device *dev)
6324 {
6325 struct niu *np = netdev_priv(dev);
6326
6327 niu_get_rx_stats(np);
6328 niu_get_tx_stats(np);
6329
6330 return &dev->stats;
6331 }
6332
6333 static void niu_load_hash_xmac(struct niu *np, u16 *hash)
6334 {
6335 int i;
6336
6337 for (i = 0; i < 16; i++)
6338 nw64_mac(XMAC_HASH_TBL(i), hash[i]);
6339 }
6340
6341 static void niu_load_hash_bmac(struct niu *np, u16 *hash)
6342 {
6343 int i;
6344
6345 for (i = 0; i < 16; i++)
6346 nw64_mac(BMAC_HASH_TBL(i), hash[i]);
6347 }
6348
6349 static void niu_load_hash(struct niu *np, u16 *hash)
6350 {
6351 if (np->flags & NIU_FLAGS_XMAC)
6352 niu_load_hash_xmac(np, hash);
6353 else
6354 niu_load_hash_bmac(np, hash);
6355 }
6356
6357 static void niu_set_rx_mode(struct net_device *dev)
6358 {
6359 struct niu *np = netdev_priv(dev);
6360 int i, alt_cnt, err;
6361 struct dev_addr_list *addr;
6362 struct netdev_hw_addr *ha;
6363 unsigned long flags;
6364 u16 hash[16] = { 0, };
6365
6366 spin_lock_irqsave(&np->lock, flags);
6367 niu_enable_rx_mac(np, 0);
6368
6369 np->flags &= ~(NIU_FLAGS_MCAST | NIU_FLAGS_PROMISC);
6370 if (dev->flags & IFF_PROMISC)
6371 np->flags |= NIU_FLAGS_PROMISC;
6372 if ((dev->flags & IFF_ALLMULTI) || (dev->mc_count > 0))
6373 np->flags |= NIU_FLAGS_MCAST;
6374
6375 alt_cnt = dev->uc.count;
6376 if (alt_cnt > niu_num_alt_addr(np)) {
6377 alt_cnt = 0;
6378 np->flags |= NIU_FLAGS_PROMISC;
6379 }
6380
6381 if (alt_cnt) {
6382 int index = 0;
6383
6384 list_for_each_entry(ha, &dev->uc.list, list) {
6385 err = niu_set_alt_mac(np, index, ha->addr);
6386 if (err)
6387 printk(KERN_WARNING PFX "%s: Error %d "
6388 "adding alt mac %d\n",
6389 dev->name, err, index);
6390 err = niu_enable_alt_mac(np, index, 1);
6391 if (err)
6392 printk(KERN_WARNING PFX "%s: Error %d "
6393 "enabling alt mac %d\n",
6394 dev->name, err, index);
6395
6396 index++;
6397 }
6398 } else {
6399 int alt_start;
6400 if (np->flags & NIU_FLAGS_XMAC)
6401 alt_start = 0;
6402 else
6403 alt_start = 1;
6404 for (i = alt_start; i < niu_num_alt_addr(np); i++) {
6405 err = niu_enable_alt_mac(np, i, 0);
6406 if (err)
6407 printk(KERN_WARNING PFX "%s: Error %d "
6408 "disabling alt mac %d\n",
6409 dev->name, err, i);
6410 }
6411 }
6412 if (dev->flags & IFF_ALLMULTI) {
6413 for (i = 0; i < 16; i++)
6414 hash[i] = 0xffff;
6415 } else if (dev->mc_count > 0) {
6416 for (addr = dev->mc_list; addr; addr = addr->next) {
6417 u32 crc = ether_crc_le(ETH_ALEN, addr->da_addr);
6418
6419 crc >>= 24;
6420 hash[crc >> 4] |= (1 << (15 - (crc & 0xf)));
6421 }
6422 }
6423
6424 if (np->flags & NIU_FLAGS_MCAST)
6425 niu_load_hash(np, hash);
6426
6427 niu_enable_rx_mac(np, 1);
6428 spin_unlock_irqrestore(&np->lock, flags);
6429 }
6430
6431 static int niu_set_mac_addr(struct net_device *dev, void *p)
6432 {
6433 struct niu *np = netdev_priv(dev);
6434 struct sockaddr *addr = p;
6435 unsigned long flags;
6436
6437 if (!is_valid_ether_addr(addr->sa_data))
6438 return -EINVAL;
6439
6440 memcpy(dev->dev_addr, addr->sa_data, ETH_ALEN);
6441
6442 if (!netif_running(dev))
6443 return 0;
6444
6445 spin_lock_irqsave(&np->lock, flags);
6446 niu_enable_rx_mac(np, 0);
6447 niu_set_primary_mac(np, dev->dev_addr);
6448 niu_enable_rx_mac(np, 1);
6449 spin_unlock_irqrestore(&np->lock, flags);
6450
6451 return 0;
6452 }
6453
6454 static int niu_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
6455 {
6456 return -EOPNOTSUPP;
6457 }
6458
6459 static void niu_netif_stop(struct niu *np)
6460 {
6461 np->dev->trans_start = jiffies; /* prevent tx timeout */
6462
6463 niu_disable_napi(np);
6464
6465 netif_tx_disable(np->dev);
6466 }
6467
6468 static void niu_netif_start(struct niu *np)
6469 {
6470 /* NOTE: unconditional netif_wake_queue is only appropriate
6471 * so long as all callers are assured to have free tx slots
6472 * (such as after niu_init_hw).
6473 */
6474 netif_tx_wake_all_queues(np->dev);
6475
6476 niu_enable_napi(np);
6477
6478 niu_enable_interrupts(np, 1);
6479 }
6480
6481 static void niu_reset_buffers(struct niu *np)
6482 {
6483 int i, j, k, err;
6484
6485 if (np->rx_rings) {
6486 for (i = 0; i < np->num_rx_rings; i++) {
6487 struct rx_ring_info *rp = &np->rx_rings[i];
6488
6489 for (j = 0, k = 0; j < MAX_RBR_RING_SIZE; j++) {
6490 struct page *page;
6491
6492 page = rp->rxhash[j];
6493 while (page) {
6494 struct page *next =
6495 (struct page *) page->mapping;
6496 u64 base = page->index;
6497 base = base >> RBR_DESCR_ADDR_SHIFT;
6498 rp->rbr[k++] = cpu_to_le32(base);
6499 page = next;
6500 }
6501 }
6502 for (; k < MAX_RBR_RING_SIZE; k++) {
6503 err = niu_rbr_add_page(np, rp, GFP_ATOMIC, k);
6504 if (unlikely(err))
6505 break;
6506 }
6507
6508 rp->rbr_index = rp->rbr_table_size - 1;
6509 rp->rcr_index = 0;
6510 rp->rbr_pending = 0;
6511 rp->rbr_refill_pending = 0;
6512 }
6513 }
6514 if (np->tx_rings) {
6515 for (i = 0; i < np->num_tx_rings; i++) {
6516 struct tx_ring_info *rp = &np->tx_rings[i];
6517
6518 for (j = 0; j < MAX_TX_RING_SIZE; j++) {
6519 if (rp->tx_buffs[j].skb)
6520 (void) release_tx_packet(np, rp, j);
6521 }
6522
6523 rp->pending = MAX_TX_RING_SIZE;
6524 rp->prod = 0;
6525 rp->cons = 0;
6526 rp->wrap_bit = 0;
6527 }
6528 }
6529 }
6530
6531 static void niu_reset_task(struct work_struct *work)
6532 {
6533 struct niu *np = container_of(work, struct niu, reset_task);
6534 unsigned long flags;
6535 int err;
6536
6537 spin_lock_irqsave(&np->lock, flags);
6538 if (!netif_running(np->dev)) {
6539 spin_unlock_irqrestore(&np->lock, flags);
6540 return;
6541 }
6542
6543 spin_unlock_irqrestore(&np->lock, flags);
6544
6545 del_timer_sync(&np->timer);
6546
6547 niu_netif_stop(np);
6548
6549 spin_lock_irqsave(&np->lock, flags);
6550
6551 niu_stop_hw(np);
6552
6553 spin_unlock_irqrestore(&np->lock, flags);
6554
6555 niu_reset_buffers(np);
6556
6557 spin_lock_irqsave(&np->lock, flags);
6558
6559 err = niu_init_hw(np);
6560 if (!err) {
6561 np->timer.expires = jiffies + HZ;
6562 add_timer(&np->timer);
6563 niu_netif_start(np);
6564 }
6565
6566 spin_unlock_irqrestore(&np->lock, flags);
6567 }
6568
6569 static void niu_tx_timeout(struct net_device *dev)
6570 {
6571 struct niu *np = netdev_priv(dev);
6572
6573 dev_err(np->device, PFX "%s: Transmit timed out, resetting\n",
6574 dev->name);
6575
6576 schedule_work(&np->reset_task);
6577 }
6578
6579 static void niu_set_txd(struct tx_ring_info *rp, int index,
6580 u64 mapping, u64 len, u64 mark,
6581 u64 n_frags)
6582 {
6583 __le64 *desc = &rp->descr[index];
6584
6585 *desc = cpu_to_le64(mark |
6586 (n_frags << TX_DESC_NUM_PTR_SHIFT) |
6587 (len << TX_DESC_TR_LEN_SHIFT) |
6588 (mapping & TX_DESC_SAD));
6589 }
6590
6591 static u64 niu_compute_tx_flags(struct sk_buff *skb, struct ethhdr *ehdr,
6592 u64 pad_bytes, u64 len)
6593 {
6594 u16 eth_proto, eth_proto_inner;
6595 u64 csum_bits, l3off, ihl, ret;
6596 u8 ip_proto;
6597 int ipv6;
6598
6599 eth_proto = be16_to_cpu(ehdr->h_proto);
6600 eth_proto_inner = eth_proto;
6601 if (eth_proto == ETH_P_8021Q) {
6602 struct vlan_ethhdr *vp = (struct vlan_ethhdr *) ehdr;
6603 __be16 val = vp->h_vlan_encapsulated_proto;
6604
6605 eth_proto_inner = be16_to_cpu(val);
6606 }
6607
6608 ipv6 = ihl = 0;
6609 switch (skb->protocol) {
6610 case cpu_to_be16(ETH_P_IP):
6611 ip_proto = ip_hdr(skb)->protocol;
6612 ihl = ip_hdr(skb)->ihl;
6613 break;
6614 case cpu_to_be16(ETH_P_IPV6):
6615 ip_proto = ipv6_hdr(skb)->nexthdr;
6616 ihl = (40 >> 2);
6617 ipv6 = 1;
6618 break;
6619 default:
6620 ip_proto = ihl = 0;
6621 break;
6622 }
6623
6624 csum_bits = TXHDR_CSUM_NONE;
6625 if (skb->ip_summed == CHECKSUM_PARTIAL) {
6626 u64 start, stuff;
6627
6628 csum_bits = (ip_proto == IPPROTO_TCP ?
6629 TXHDR_CSUM_TCP :
6630 (ip_proto == IPPROTO_UDP ?
6631 TXHDR_CSUM_UDP : TXHDR_CSUM_SCTP));
6632
6633 start = skb_transport_offset(skb) -
6634 (pad_bytes + sizeof(struct tx_pkt_hdr));
6635 stuff = start + skb->csum_offset;
6636
6637 csum_bits |= (start / 2) << TXHDR_L4START_SHIFT;
6638 csum_bits |= (stuff / 2) << TXHDR_L4STUFF_SHIFT;
6639 }
6640
6641 l3off = skb_network_offset(skb) -
6642 (pad_bytes + sizeof(struct tx_pkt_hdr));
6643
6644 ret = (((pad_bytes / 2) << TXHDR_PAD_SHIFT) |
6645 (len << TXHDR_LEN_SHIFT) |
6646 ((l3off / 2) << TXHDR_L3START_SHIFT) |
6647 (ihl << TXHDR_IHL_SHIFT) |
6648 ((eth_proto_inner < 1536) ? TXHDR_LLC : 0) |
6649 ((eth_proto == ETH_P_8021Q) ? TXHDR_VLAN : 0) |
6650 (ipv6 ? TXHDR_IP_VER : 0) |
6651 csum_bits);
6652
6653 return ret;
6654 }
6655
6656 static netdev_tx_t niu_start_xmit(struct sk_buff *skb,
6657 struct net_device *dev)
6658 {
6659 struct niu *np = netdev_priv(dev);
6660 unsigned long align, headroom;
6661 struct netdev_queue *txq;
6662 struct tx_ring_info *rp;
6663 struct tx_pkt_hdr *tp;
6664 unsigned int len, nfg;
6665 struct ethhdr *ehdr;
6666 int prod, i, tlen;
6667 u64 mapping, mrk;
6668
6669 i = skb_get_queue_mapping(skb);
6670 rp = &np->tx_rings[i];
6671 txq = netdev_get_tx_queue(dev, i);
6672
6673 if (niu_tx_avail(rp) <= (skb_shinfo(skb)->nr_frags + 1)) {
6674 netif_tx_stop_queue(txq);
6675 dev_err(np->device, PFX "%s: BUG! Tx ring full when "
6676 "queue awake!\n", dev->name);
6677 rp->tx_errors++;
6678 return NETDEV_TX_BUSY;
6679 }
6680
6681 if (skb->len < ETH_ZLEN) {
6682 unsigned int pad_bytes = ETH_ZLEN - skb->len;
6683
6684 if (skb_pad(skb, pad_bytes))
6685 goto out;
6686 skb_put(skb, pad_bytes);
6687 }
6688
6689 len = sizeof(struct tx_pkt_hdr) + 15;
6690 if (skb_headroom(skb) < len) {
6691 struct sk_buff *skb_new;
6692
6693 skb_new = skb_realloc_headroom(skb, len);
6694 if (!skb_new) {
6695 rp->tx_errors++;
6696 goto out_drop;
6697 }
6698 kfree_skb(skb);
6699 skb = skb_new;
6700 } else
6701 skb_orphan(skb);
6702
6703 align = ((unsigned long) skb->data & (16 - 1));
6704 headroom = align + sizeof(struct tx_pkt_hdr);
6705
6706 ehdr = (struct ethhdr *) skb->data;
6707 tp = (struct tx_pkt_hdr *) skb_push(skb, headroom);
6708
6709 len = skb->len - sizeof(struct tx_pkt_hdr);
6710 tp->flags = cpu_to_le64(niu_compute_tx_flags(skb, ehdr, align, len));
6711 tp->resv = 0;
6712
6713 len = skb_headlen(skb);
6714 mapping = np->ops->map_single(np->device, skb->data,
6715 len, DMA_TO_DEVICE);
6716
6717 prod = rp->prod;
6718
6719 rp->tx_buffs[prod].skb = skb;
6720 rp->tx_buffs[prod].mapping = mapping;
6721
6722 mrk = TX_DESC_SOP;
6723 if (++rp->mark_counter == rp->mark_freq) {
6724 rp->mark_counter = 0;
6725 mrk |= TX_DESC_MARK;
6726 rp->mark_pending++;
6727 }
6728
6729 tlen = len;
6730 nfg = skb_shinfo(skb)->nr_frags;
6731 while (tlen > 0) {
6732 tlen -= MAX_TX_DESC_LEN;
6733 nfg++;
6734 }
6735
6736 while (len > 0) {
6737 unsigned int this_len = len;
6738
6739 if (this_len > MAX_TX_DESC_LEN)
6740 this_len = MAX_TX_DESC_LEN;
6741
6742 niu_set_txd(rp, prod, mapping, this_len, mrk, nfg);
6743 mrk = nfg = 0;
6744
6745 prod = NEXT_TX(rp, prod);
6746 mapping += this_len;
6747 len -= this_len;
6748 }
6749
6750 for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
6751 skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
6752
6753 len = frag->size;
6754 mapping = np->ops->map_page(np->device, frag->page,
6755 frag->page_offset, len,
6756 DMA_TO_DEVICE);
6757
6758 rp->tx_buffs[prod].skb = NULL;
6759 rp->tx_buffs[prod].mapping = mapping;
6760
6761 niu_set_txd(rp, prod, mapping, len, 0, 0);
6762
6763 prod = NEXT_TX(rp, prod);
6764 }
6765
6766 if (prod < rp->prod)
6767 rp->wrap_bit ^= TX_RING_KICK_WRAP;
6768 rp->prod = prod;
6769
6770 nw64(TX_RING_KICK(rp->tx_channel), rp->wrap_bit | (prod << 3));
6771
6772 if (unlikely(niu_tx_avail(rp) <= (MAX_SKB_FRAGS + 1))) {
6773 netif_tx_stop_queue(txq);
6774 if (niu_tx_avail(rp) > NIU_TX_WAKEUP_THRESH(rp))
6775 netif_tx_wake_queue(txq);
6776 }
6777
6778 out:
6779 return NETDEV_TX_OK;
6780
6781 out_drop:
6782 rp->tx_errors++;
6783 kfree_skb(skb);
6784 goto out;
6785 }
6786
6787 static int niu_change_mtu(struct net_device *dev, int new_mtu)
6788 {
6789 struct niu *np = netdev_priv(dev);
6790 int err, orig_jumbo, new_jumbo;
6791
6792 if (new_mtu < 68 || new_mtu > NIU_MAX_MTU)
6793 return -EINVAL;
6794
6795 orig_jumbo = (dev->mtu > ETH_DATA_LEN);
6796 new_jumbo = (new_mtu > ETH_DATA_LEN);
6797
6798 dev->mtu = new_mtu;
6799
6800 if (!netif_running(dev) ||
6801 (orig_jumbo == new_jumbo))
6802 return 0;
6803
6804 niu_full_shutdown(np, dev);
6805
6806 niu_free_channels(np);
6807
6808 niu_enable_napi(np);
6809
6810 err = niu_alloc_channels(np);
6811 if (err)
6812 return err;
6813
6814 spin_lock_irq(&np->lock);
6815
6816 err = niu_init_hw(np);
6817 if (!err) {
6818 init_timer(&np->timer);
6819 np->timer.expires = jiffies + HZ;
6820 np->timer.data = (unsigned long) np;
6821 np->timer.function = niu_timer;
6822
6823 err = niu_enable_interrupts(np, 1);
6824 if (err)
6825 niu_stop_hw(np);
6826 }
6827
6828 spin_unlock_irq(&np->lock);
6829
6830 if (!err) {
6831 netif_tx_start_all_queues(dev);
6832 if (np->link_config.loopback_mode != LOOPBACK_DISABLED)
6833 netif_carrier_on(dev);
6834
6835 add_timer(&np->timer);
6836 }
6837
6838 return err;
6839 }
6840
6841 static void niu_get_drvinfo(struct net_device *dev,
6842 struct ethtool_drvinfo *info)
6843 {
6844 struct niu *np = netdev_priv(dev);
6845 struct niu_vpd *vpd = &np->vpd;
6846
6847 strcpy(info->driver, DRV_MODULE_NAME);
6848 strcpy(info->version, DRV_MODULE_VERSION);
6849 sprintf(info->fw_version, "%d.%d",
6850 vpd->fcode_major, vpd->fcode_minor);
6851 if (np->parent->plat_type != PLAT_TYPE_NIU)
6852 strcpy(info->bus_info, pci_name(np->pdev));
6853 }
6854
6855 static int niu_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
6856 {
6857 struct niu *np = netdev_priv(dev);
6858 struct niu_link_config *lp;
6859
6860 lp = &np->link_config;
6861
6862 memset(cmd, 0, sizeof(*cmd));
6863 cmd->phy_address = np->phy_addr;
6864 cmd->supported = lp->supported;
6865 cmd->advertising = lp->active_advertising;
6866 cmd->autoneg = lp->active_autoneg;
6867 cmd->speed = lp->active_speed;
6868 cmd->duplex = lp->active_duplex;
6869 cmd->port = (np->flags & NIU_FLAGS_FIBER) ? PORT_FIBRE : PORT_TP;
6870 cmd->transceiver = (np->flags & NIU_FLAGS_XCVR_SERDES) ?
6871 XCVR_EXTERNAL : XCVR_INTERNAL;
6872
6873 return 0;
6874 }
6875
6876 static int niu_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
6877 {
6878 struct niu *np = netdev_priv(dev);
6879 struct niu_link_config *lp = &np->link_config;
6880
6881 lp->advertising = cmd->advertising;
6882 lp->speed = cmd->speed;
6883 lp->duplex = cmd->duplex;
6884 lp->autoneg = cmd->autoneg;
6885 return niu_init_link(np);
6886 }
6887
6888 static u32 niu_get_msglevel(struct net_device *dev)
6889 {
6890 struct niu *np = netdev_priv(dev);
6891 return np->msg_enable;
6892 }
6893
6894 static void niu_set_msglevel(struct net_device *dev, u32 value)
6895 {
6896 struct niu *np = netdev_priv(dev);
6897 np->msg_enable = value;
6898 }
6899
6900 static int niu_nway_reset(struct net_device *dev)
6901 {
6902 struct niu *np = netdev_priv(dev);
6903
6904 if (np->link_config.autoneg)
6905 return niu_init_link(np);
6906
6907 return 0;
6908 }
6909
6910 static int niu_get_eeprom_len(struct net_device *dev)
6911 {
6912 struct niu *np = netdev_priv(dev);
6913
6914 return np->eeprom_len;
6915 }
6916
6917 static int niu_get_eeprom(struct net_device *dev,
6918 struct ethtool_eeprom *eeprom, u8 *data)
6919 {
6920 struct niu *np = netdev_priv(dev);
6921 u32 offset, len, val;
6922
6923 offset = eeprom->offset;
6924 len = eeprom->len;
6925
6926 if (offset + len < offset)
6927 return -EINVAL;
6928 if (offset >= np->eeprom_len)
6929 return -EINVAL;
6930 if (offset + len > np->eeprom_len)
6931 len = eeprom->len = np->eeprom_len - offset;
6932
6933 if (offset & 3) {
6934 u32 b_offset, b_count;
6935
6936 b_offset = offset & 3;
6937 b_count = 4 - b_offset;
6938 if (b_count > len)
6939 b_count = len;
6940
6941 val = nr64(ESPC_NCR((offset - b_offset) / 4));
6942 memcpy(data, ((char *)&val) + b_offset, b_count);
6943 data += b_count;
6944 len -= b_count;
6945 offset += b_count;
6946 }
6947 while (len >= 4) {
6948 val = nr64(ESPC_NCR(offset / 4));
6949 memcpy(data, &val, 4);
6950 data += 4;
6951 len -= 4;
6952 offset += 4;
6953 }
6954 if (len) {
6955 val = nr64(ESPC_NCR(offset / 4));
6956 memcpy(data, &val, len);
6957 }
6958 return 0;
6959 }
6960
6961 static void niu_ethflow_to_l3proto(int flow_type, u8 *pid)
6962 {
6963 switch (flow_type) {
6964 case TCP_V4_FLOW:
6965 case TCP_V6_FLOW:
6966 *pid = IPPROTO_TCP;
6967 break;
6968 case UDP_V4_FLOW:
6969 case UDP_V6_FLOW:
6970 *pid = IPPROTO_UDP;
6971 break;
6972 case SCTP_V4_FLOW:
6973 case SCTP_V6_FLOW:
6974 *pid = IPPROTO_SCTP;
6975 break;
6976 case AH_V4_FLOW:
6977 case AH_V6_FLOW:
6978 *pid = IPPROTO_AH;
6979 break;
6980 case ESP_V4_FLOW:
6981 case ESP_V6_FLOW:
6982 *pid = IPPROTO_ESP;
6983 break;
6984 default:
6985 *pid = 0;
6986 break;
6987 }
6988 }
6989
6990 static int niu_class_to_ethflow(u64 class, int *flow_type)
6991 {
6992 switch (class) {
6993 case CLASS_CODE_TCP_IPV4:
6994 *flow_type = TCP_V4_FLOW;
6995 break;
6996 case CLASS_CODE_UDP_IPV4:
6997 *flow_type = UDP_V4_FLOW;
6998 break;
6999 case CLASS_CODE_AH_ESP_IPV4:
7000 *flow_type = AH_V4_FLOW;
7001 break;
7002 case CLASS_CODE_SCTP_IPV4:
7003 *flow_type = SCTP_V4_FLOW;
7004 break;
7005 case CLASS_CODE_TCP_IPV6:
7006 *flow_type = TCP_V6_FLOW;
7007 break;
7008 case CLASS_CODE_UDP_IPV6:
7009 *flow_type = UDP_V6_FLOW;
7010 break;
7011 case CLASS_CODE_AH_ESP_IPV6:
7012 *flow_type = AH_V6_FLOW;
7013 break;
7014 case CLASS_CODE_SCTP_IPV6:
7015 *flow_type = SCTP_V6_FLOW;
7016 break;
7017 case CLASS_CODE_USER_PROG1:
7018 case CLASS_CODE_USER_PROG2:
7019 case CLASS_CODE_USER_PROG3:
7020 case CLASS_CODE_USER_PROG4:
7021 *flow_type = IP_USER_FLOW;
7022 break;
7023 default:
7024 return 0;
7025 }
7026
7027 return 1;
7028 }
7029
7030 static int niu_ethflow_to_class(int flow_type, u64 *class)
7031 {
7032 switch (flow_type) {
7033 case TCP_V4_FLOW:
7034 *class = CLASS_CODE_TCP_IPV4;
7035 break;
7036 case UDP_V4_FLOW:
7037 *class = CLASS_CODE_UDP_IPV4;
7038 break;
7039 case AH_V4_FLOW:
7040 case ESP_V4_FLOW:
7041 *class = CLASS_CODE_AH_ESP_IPV4;
7042 break;
7043 case SCTP_V4_FLOW:
7044 *class = CLASS_CODE_SCTP_IPV4;
7045 break;
7046 case TCP_V6_FLOW:
7047 *class = CLASS_CODE_TCP_IPV6;
7048 break;
7049 case UDP_V6_FLOW:
7050 *class = CLASS_CODE_UDP_IPV6;
7051 break;
7052 case AH_V6_FLOW:
7053 case ESP_V6_FLOW:
7054 *class = CLASS_CODE_AH_ESP_IPV6;
7055 break;
7056 case SCTP_V6_FLOW:
7057 *class = CLASS_CODE_SCTP_IPV6;
7058 break;
7059 default:
7060 return 0;
7061 }
7062
7063 return 1;
7064 }
7065
7066 static u64 niu_flowkey_to_ethflow(u64 flow_key)
7067 {
7068 u64 ethflow = 0;
7069
7070 if (flow_key & FLOW_KEY_L2DA)
7071 ethflow |= RXH_L2DA;
7072 if (flow_key & FLOW_KEY_VLAN)
7073 ethflow |= RXH_VLAN;
7074 if (flow_key & FLOW_KEY_IPSA)
7075 ethflow |= RXH_IP_SRC;
7076 if (flow_key & FLOW_KEY_IPDA)
7077 ethflow |= RXH_IP_DST;
7078 if (flow_key & FLOW_KEY_PROTO)
7079 ethflow |= RXH_L3_PROTO;
7080 if (flow_key & (FLOW_KEY_L4_BYTE12 << FLOW_KEY_L4_0_SHIFT))
7081 ethflow |= RXH_L4_B_0_1;
7082 if (flow_key & (FLOW_KEY_L4_BYTE12 << FLOW_KEY_L4_1_SHIFT))
7083 ethflow |= RXH_L4_B_2_3;
7084
7085 return ethflow;
7086
7087 }
7088
7089 static int niu_ethflow_to_flowkey(u64 ethflow, u64 *flow_key)
7090 {
7091 u64 key = 0;
7092
7093 if (ethflow & RXH_L2DA)
7094 key |= FLOW_KEY_L2DA;
7095 if (ethflow & RXH_VLAN)
7096 key |= FLOW_KEY_VLAN;
7097 if (ethflow & RXH_IP_SRC)
7098 key |= FLOW_KEY_IPSA;
7099 if (ethflow & RXH_IP_DST)
7100 key |= FLOW_KEY_IPDA;
7101 if (ethflow & RXH_L3_PROTO)
7102 key |= FLOW_KEY_PROTO;
7103 if (ethflow & RXH_L4_B_0_1)
7104 key |= (FLOW_KEY_L4_BYTE12 << FLOW_KEY_L4_0_SHIFT);
7105 if (ethflow & RXH_L4_B_2_3)
7106 key |= (FLOW_KEY_L4_BYTE12 << FLOW_KEY_L4_1_SHIFT);
7107
7108 *flow_key = key;
7109
7110 return 1;
7111
7112 }
7113
7114 static int niu_get_hash_opts(struct niu *np, struct ethtool_rxnfc *nfc)
7115 {
7116 u64 class;
7117
7118 nfc->data = 0;
7119
7120 if (!niu_ethflow_to_class(nfc->flow_type, &class))
7121 return -EINVAL;
7122
7123 if (np->parent->tcam_key[class - CLASS_CODE_USER_PROG1] &
7124 TCAM_KEY_DISC)
7125 nfc->data = RXH_DISCARD;
7126 else
7127 nfc->data = niu_flowkey_to_ethflow(np->parent->flow_key[class -
7128 CLASS_CODE_USER_PROG1]);
7129 return 0;
7130 }
7131
7132 static void niu_get_ip4fs_from_tcam_key(struct niu_tcam_entry *tp,
7133 struct ethtool_rx_flow_spec *fsp)
7134 {
7135
7136 fsp->h_u.tcp_ip4_spec.ip4src = (tp->key[3] & TCAM_V4KEY3_SADDR) >>
7137 TCAM_V4KEY3_SADDR_SHIFT;
7138 fsp->h_u.tcp_ip4_spec.ip4dst = (tp->key[3] & TCAM_V4KEY3_DADDR) >>
7139 TCAM_V4KEY3_DADDR_SHIFT;
7140 fsp->m_u.tcp_ip4_spec.ip4src = (tp->key_mask[3] & TCAM_V4KEY3_SADDR) >>
7141 TCAM_V4KEY3_SADDR_SHIFT;
7142 fsp->m_u.tcp_ip4_spec.ip4dst = (tp->key_mask[3] & TCAM_V4KEY3_DADDR) >>
7143 TCAM_V4KEY3_DADDR_SHIFT;
7144
7145 fsp->h_u.tcp_ip4_spec.ip4src =
7146 cpu_to_be32(fsp->h_u.tcp_ip4_spec.ip4src);
7147 fsp->m_u.tcp_ip4_spec.ip4src =
7148 cpu_to_be32(fsp->m_u.tcp_ip4_spec.ip4src);
7149 fsp->h_u.tcp_ip4_spec.ip4dst =
7150 cpu_to_be32(fsp->h_u.tcp_ip4_spec.ip4dst);
7151 fsp->m_u.tcp_ip4_spec.ip4dst =
7152 cpu_to_be32(fsp->m_u.tcp_ip4_spec.ip4dst);
7153
7154 fsp->h_u.tcp_ip4_spec.tos = (tp->key[2] & TCAM_V4KEY2_TOS) >>
7155 TCAM_V4KEY2_TOS_SHIFT;
7156 fsp->m_u.tcp_ip4_spec.tos = (tp->key_mask[2] & TCAM_V4KEY2_TOS) >>
7157 TCAM_V4KEY2_TOS_SHIFT;
7158
7159 switch (fsp->flow_type) {
7160 case TCP_V4_FLOW:
7161 case UDP_V4_FLOW:
7162 case SCTP_V4_FLOW:
7163 fsp->h_u.tcp_ip4_spec.psrc =
7164 ((tp->key[2] & TCAM_V4KEY2_PORT_SPI) >>
7165 TCAM_V4KEY2_PORT_SPI_SHIFT) >> 16;
7166 fsp->h_u.tcp_ip4_spec.pdst =
7167 ((tp->key[2] & TCAM_V4KEY2_PORT_SPI) >>
7168 TCAM_V4KEY2_PORT_SPI_SHIFT) & 0xffff;
7169 fsp->m_u.tcp_ip4_spec.psrc =
7170 ((tp->key_mask[2] & TCAM_V4KEY2_PORT_SPI) >>
7171 TCAM_V4KEY2_PORT_SPI_SHIFT) >> 16;
7172 fsp->m_u.tcp_ip4_spec.pdst =
7173 ((tp->key_mask[2] & TCAM_V4KEY2_PORT_SPI) >>
7174 TCAM_V4KEY2_PORT_SPI_SHIFT) & 0xffff;
7175
7176 fsp->h_u.tcp_ip4_spec.psrc =
7177 cpu_to_be16(fsp->h_u.tcp_ip4_spec.psrc);
7178 fsp->h_u.tcp_ip4_spec.pdst =
7179 cpu_to_be16(fsp->h_u.tcp_ip4_spec.pdst);
7180 fsp->m_u.tcp_ip4_spec.psrc =
7181 cpu_to_be16(fsp->m_u.tcp_ip4_spec.psrc);
7182 fsp->m_u.tcp_ip4_spec.pdst =
7183 cpu_to_be16(fsp->m_u.tcp_ip4_spec.pdst);
7184 break;
7185 case AH_V4_FLOW:
7186 case ESP_V4_FLOW:
7187 fsp->h_u.ah_ip4_spec.spi =
7188 (tp->key[2] & TCAM_V4KEY2_PORT_SPI) >>
7189 TCAM_V4KEY2_PORT_SPI_SHIFT;
7190 fsp->m_u.ah_ip4_spec.spi =
7191 (tp->key_mask[2] & TCAM_V4KEY2_PORT_SPI) >>
7192 TCAM_V4KEY2_PORT_SPI_SHIFT;
7193
7194 fsp->h_u.ah_ip4_spec.spi =
7195 cpu_to_be32(fsp->h_u.ah_ip4_spec.spi);
7196 fsp->m_u.ah_ip4_spec.spi =
7197 cpu_to_be32(fsp->m_u.ah_ip4_spec.spi);
7198 break;
7199 case IP_USER_FLOW:
7200 fsp->h_u.usr_ip4_spec.l4_4_bytes =
7201 (tp->key[2] & TCAM_V4KEY2_PORT_SPI) >>
7202 TCAM_V4KEY2_PORT_SPI_SHIFT;
7203 fsp->m_u.usr_ip4_spec.l4_4_bytes =
7204 (tp->key_mask[2] & TCAM_V4KEY2_PORT_SPI) >>
7205 TCAM_V4KEY2_PORT_SPI_SHIFT;
7206
7207 fsp->h_u.usr_ip4_spec.l4_4_bytes =
7208 cpu_to_be32(fsp->h_u.usr_ip4_spec.l4_4_bytes);
7209 fsp->m_u.usr_ip4_spec.l4_4_bytes =
7210 cpu_to_be32(fsp->m_u.usr_ip4_spec.l4_4_bytes);
7211
7212 fsp->h_u.usr_ip4_spec.proto =
7213 (tp->key[2] & TCAM_V4KEY2_PROTO) >>
7214 TCAM_V4KEY2_PROTO_SHIFT;
7215 fsp->m_u.usr_ip4_spec.proto =
7216 (tp->key_mask[2] & TCAM_V4KEY2_PROTO) >>
7217 TCAM_V4KEY2_PROTO_SHIFT;
7218
7219 fsp->h_u.usr_ip4_spec.ip_ver = ETH_RX_NFC_IP4;
7220 break;
7221 default:
7222 break;
7223 }
7224 }
7225
7226 static int niu_get_ethtool_tcam_entry(struct niu *np,
7227 struct ethtool_rxnfc *nfc)
7228 {
7229 struct niu_parent *parent = np->parent;
7230 struct niu_tcam_entry *tp;
7231 struct ethtool_rx_flow_spec *fsp = &nfc->fs;
7232 u16 idx;
7233 u64 class;
7234 int ret = 0;
7235
7236 idx = tcam_get_index(np, (u16)nfc->fs.location);
7237
7238 tp = &parent->tcam[idx];
7239 if (!tp->valid) {
7240 pr_info(PFX "niu%d: %s entry [%d] invalid for idx[%d]\n",
7241 parent->index, np->dev->name, (u16)nfc->fs.location, idx);
7242 return -EINVAL;
7243 }
7244
7245 /* fill the flow spec entry */
7246 class = (tp->key[0] & TCAM_V4KEY0_CLASS_CODE) >>
7247 TCAM_V4KEY0_CLASS_CODE_SHIFT;
7248 ret = niu_class_to_ethflow(class, &fsp->flow_type);
7249
7250 if (ret < 0) {
7251 pr_info(PFX "niu%d: %s niu_class_to_ethflow failed\n",
7252 parent->index, np->dev->name);
7253 ret = -EINVAL;
7254 goto out;
7255 }
7256
7257 if (fsp->flow_type == AH_V4_FLOW || fsp->flow_type == AH_V6_FLOW) {
7258 u32 proto = (tp->key[2] & TCAM_V4KEY2_PROTO) >>
7259 TCAM_V4KEY2_PROTO_SHIFT;
7260 if (proto == IPPROTO_ESP) {
7261 if (fsp->flow_type == AH_V4_FLOW)
7262 fsp->flow_type = ESP_V4_FLOW;
7263 else
7264 fsp->flow_type = ESP_V6_FLOW;
7265 }
7266 }
7267
7268 switch (fsp->flow_type) {
7269 case TCP_V4_FLOW:
7270 case UDP_V4_FLOW:
7271 case SCTP_V4_FLOW:
7272 case AH_V4_FLOW:
7273 case ESP_V4_FLOW:
7274 niu_get_ip4fs_from_tcam_key(tp, fsp);
7275 break;
7276 case TCP_V6_FLOW:
7277 case UDP_V6_FLOW:
7278 case SCTP_V6_FLOW:
7279 case AH_V6_FLOW:
7280 case ESP_V6_FLOW:
7281 /* Not yet implemented */
7282 ret = -EINVAL;
7283 break;
7284 case IP_USER_FLOW:
7285 niu_get_ip4fs_from_tcam_key(tp, fsp);
7286 break;
7287 default:
7288 ret = -EINVAL;
7289 break;
7290 }
7291
7292 if (ret < 0)
7293 goto out;
7294
7295 if (tp->assoc_data & TCAM_ASSOCDATA_DISC)
7296 fsp->ring_cookie = RX_CLS_FLOW_DISC;
7297 else
7298 fsp->ring_cookie = (tp->assoc_data & TCAM_ASSOCDATA_OFFSET) >>
7299 TCAM_ASSOCDATA_OFFSET_SHIFT;
7300
7301 /* put the tcam size here */
7302 nfc->data = tcam_get_size(np);
7303 out:
7304 return ret;
7305 }
7306
7307 static int niu_get_ethtool_tcam_all(struct niu *np,
7308 struct ethtool_rxnfc *nfc,
7309 u32 *rule_locs)
7310 {
7311 struct niu_parent *parent = np->parent;
7312 struct niu_tcam_entry *tp;
7313 int i, idx, cnt;
7314 u16 n_entries;
7315 unsigned long flags;
7316
7317
7318 /* put the tcam size here */
7319 nfc->data = tcam_get_size(np);
7320
7321 niu_lock_parent(np, flags);
7322 n_entries = nfc->rule_cnt;
7323 for (cnt = 0, i = 0; i < nfc->data; i++) {
7324 idx = tcam_get_index(np, i);
7325 tp = &parent->tcam[idx];
7326 if (!tp->valid)
7327 continue;
7328 rule_locs[cnt] = i;
7329 cnt++;
7330 }
7331 niu_unlock_parent(np, flags);
7332
7333 if (n_entries != cnt) {
7334 /* print warning, this should not happen */
7335 pr_info(PFX "niu%d: %s In niu_get_ethtool_tcam_all, "
7336 "n_entries[%d] != cnt[%d]!!!\n\n",
7337 np->parent->index, np->dev->name, n_entries, cnt);
7338 }
7339
7340 return 0;
7341 }
7342
7343 static int niu_get_nfc(struct net_device *dev, struct ethtool_rxnfc *cmd,
7344 void *rule_locs)
7345 {
7346 struct niu *np = netdev_priv(dev);
7347 int ret = 0;
7348
7349 switch (cmd->cmd) {
7350 case ETHTOOL_GRXFH:
7351 ret = niu_get_hash_opts(np, cmd);
7352 break;
7353 case ETHTOOL_GRXRINGS:
7354 cmd->data = np->num_rx_rings;
7355 break;
7356 case ETHTOOL_GRXCLSRLCNT:
7357 cmd->rule_cnt = tcam_get_valid_entry_cnt(np);
7358 break;
7359 case ETHTOOL_GRXCLSRULE:
7360 ret = niu_get_ethtool_tcam_entry(np, cmd);
7361 break;
7362 case ETHTOOL_GRXCLSRLALL:
7363 ret = niu_get_ethtool_tcam_all(np, cmd, (u32 *)rule_locs);
7364 break;
7365 default:
7366 ret = -EINVAL;
7367 break;
7368 }
7369
7370 return ret;
7371 }
7372
7373 static int niu_set_hash_opts(struct niu *np, struct ethtool_rxnfc *nfc)
7374 {
7375 u64 class;
7376 u64 flow_key = 0;
7377 unsigned long flags;
7378
7379 if (!niu_ethflow_to_class(nfc->flow_type, &class))
7380 return -EINVAL;
7381
7382 if (class < CLASS_CODE_USER_PROG1 ||
7383 class > CLASS_CODE_SCTP_IPV6)
7384 return -EINVAL;
7385
7386 if (nfc->data & RXH_DISCARD) {
7387 niu_lock_parent(np, flags);
7388 flow_key = np->parent->tcam_key[class -
7389 CLASS_CODE_USER_PROG1];
7390 flow_key |= TCAM_KEY_DISC;
7391 nw64(TCAM_KEY(class - CLASS_CODE_USER_PROG1), flow_key);
7392 np->parent->tcam_key[class - CLASS_CODE_USER_PROG1] = flow_key;
7393 niu_unlock_parent(np, flags);
7394 return 0;
7395 } else {
7396 /* Discard was set before, but is not set now */
7397 if (np->parent->tcam_key[class - CLASS_CODE_USER_PROG1] &
7398 TCAM_KEY_DISC) {
7399 niu_lock_parent(np, flags);
7400 flow_key = np->parent->tcam_key[class -
7401 CLASS_CODE_USER_PROG1];
7402 flow_key &= ~TCAM_KEY_DISC;
7403 nw64(TCAM_KEY(class - CLASS_CODE_USER_PROG1),
7404 flow_key);
7405 np->parent->tcam_key[class - CLASS_CODE_USER_PROG1] =
7406 flow_key;
7407 niu_unlock_parent(np, flags);
7408 }
7409 }
7410
7411 if (!niu_ethflow_to_flowkey(nfc->data, &flow_key))
7412 return -EINVAL;
7413
7414 niu_lock_parent(np, flags);
7415 nw64(FLOW_KEY(class - CLASS_CODE_USER_PROG1), flow_key);
7416 np->parent->flow_key[class - CLASS_CODE_USER_PROG1] = flow_key;
7417 niu_unlock_parent(np, flags);
7418
7419 return 0;
7420 }
7421
7422 static void niu_get_tcamkey_from_ip4fs(struct ethtool_rx_flow_spec *fsp,
7423 struct niu_tcam_entry *tp,
7424 int l2_rdc_tab, u64 class)
7425 {
7426 u8 pid = 0;
7427 u32 sip, dip, sipm, dipm, spi, spim;
7428 u16 sport, dport, spm, dpm;
7429
7430 sip = be32_to_cpu(fsp->h_u.tcp_ip4_spec.ip4src);
7431 sipm = be32_to_cpu(fsp->m_u.tcp_ip4_spec.ip4src);
7432 dip = be32_to_cpu(fsp->h_u.tcp_ip4_spec.ip4dst);
7433 dipm = be32_to_cpu(fsp->m_u.tcp_ip4_spec.ip4dst);
7434
7435 tp->key[0] = class << TCAM_V4KEY0_CLASS_CODE_SHIFT;
7436 tp->key_mask[0] = TCAM_V4KEY0_CLASS_CODE;
7437 tp->key[1] = (u64)l2_rdc_tab << TCAM_V4KEY1_L2RDCNUM_SHIFT;
7438 tp->key_mask[1] = TCAM_V4KEY1_L2RDCNUM;
7439
7440 tp->key[3] = (u64)sip << TCAM_V4KEY3_SADDR_SHIFT;
7441 tp->key[3] |= dip;
7442
7443 tp->key_mask[3] = (u64)sipm << TCAM_V4KEY3_SADDR_SHIFT;
7444 tp->key_mask[3] |= dipm;
7445
7446 tp->key[2] |= ((u64)fsp->h_u.tcp_ip4_spec.tos <<
7447 TCAM_V4KEY2_TOS_SHIFT);
7448 tp->key_mask[2] |= ((u64)fsp->m_u.tcp_ip4_spec.tos <<
7449 TCAM_V4KEY2_TOS_SHIFT);
7450 switch (fsp->flow_type) {
7451 case TCP_V4_FLOW:
7452 case UDP_V4_FLOW:
7453 case SCTP_V4_FLOW:
7454 sport = be16_to_cpu(fsp->h_u.tcp_ip4_spec.psrc);
7455 spm = be16_to_cpu(fsp->m_u.tcp_ip4_spec.psrc);
7456 dport = be16_to_cpu(fsp->h_u.tcp_ip4_spec.pdst);
7457 dpm = be16_to_cpu(fsp->m_u.tcp_ip4_spec.pdst);
7458
7459 tp->key[2] |= (((u64)sport << 16) | dport);
7460 tp->key_mask[2] |= (((u64)spm << 16) | dpm);
7461 niu_ethflow_to_l3proto(fsp->flow_type, &pid);
7462 break;
7463 case AH_V4_FLOW:
7464 case ESP_V4_FLOW:
7465 spi = be32_to_cpu(fsp->h_u.ah_ip4_spec.spi);
7466 spim = be32_to_cpu(fsp->m_u.ah_ip4_spec.spi);
7467
7468 tp->key[2] |= spi;
7469 tp->key_mask[2] |= spim;
7470 niu_ethflow_to_l3proto(fsp->flow_type, &pid);
7471 break;
7472 case IP_USER_FLOW:
7473 spi = be32_to_cpu(fsp->h_u.usr_ip4_spec.l4_4_bytes);
7474 spim = be32_to_cpu(fsp->m_u.usr_ip4_spec.l4_4_bytes);
7475
7476 tp->key[2] |= spi;
7477 tp->key_mask[2] |= spim;
7478 pid = fsp->h_u.usr_ip4_spec.proto;
7479 break;
7480 default:
7481 break;
7482 }
7483
7484 tp->key[2] |= ((u64)pid << TCAM_V4KEY2_PROTO_SHIFT);
7485 if (pid) {
7486 tp->key_mask[2] |= TCAM_V4KEY2_PROTO;
7487 }
7488 }
7489
7490 static int niu_add_ethtool_tcam_entry(struct niu *np,
7491 struct ethtool_rxnfc *nfc)
7492 {
7493 struct niu_parent *parent = np->parent;
7494 struct niu_tcam_entry *tp;
7495 struct ethtool_rx_flow_spec *fsp = &nfc->fs;
7496 struct niu_rdc_tables *rdc_table = &parent->rdc_group_cfg[np->port];
7497 int l2_rdc_table = rdc_table->first_table_num;
7498 u16 idx;
7499 u64 class;
7500 unsigned long flags;
7501 int err, ret;
7502
7503 ret = 0;
7504
7505 idx = nfc->fs.location;
7506 if (idx >= tcam_get_size(np))
7507 return -EINVAL;
7508
7509 if (fsp->flow_type == IP_USER_FLOW) {
7510 int i;
7511 int add_usr_cls = 0;
7512 int ipv6 = 0;
7513 struct ethtool_usrip4_spec *uspec = &fsp->h_u.usr_ip4_spec;
7514 struct ethtool_usrip4_spec *umask = &fsp->m_u.usr_ip4_spec;
7515
7516 niu_lock_parent(np, flags);
7517
7518 for (i = 0; i < NIU_L3_PROG_CLS; i++) {
7519 if (parent->l3_cls[i]) {
7520 if (uspec->proto == parent->l3_cls_pid[i]) {
7521 class = parent->l3_cls[i];
7522 parent->l3_cls_refcnt[i]++;
7523 add_usr_cls = 1;
7524 break;
7525 }
7526 } else {
7527 /* Program new user IP class */
7528 switch (i) {
7529 case 0:
7530 class = CLASS_CODE_USER_PROG1;
7531 break;
7532 case 1:
7533 class = CLASS_CODE_USER_PROG2;
7534 break;
7535 case 2:
7536 class = CLASS_CODE_USER_PROG3;
7537 break;
7538 case 3:
7539 class = CLASS_CODE_USER_PROG4;
7540 break;
7541 default:
7542 break;
7543 }
7544 if (uspec->ip_ver == ETH_RX_NFC_IP6)
7545 ipv6 = 1;
7546 ret = tcam_user_ip_class_set(np, class, ipv6,
7547 uspec->proto,
7548 uspec->tos,
7549 umask->tos);
7550 if (ret)
7551 goto out;
7552
7553 ret = tcam_user_ip_class_enable(np, class, 1);
7554 if (ret)
7555 goto out;
7556 parent->l3_cls[i] = class;
7557 parent->l3_cls_pid[i] = uspec->proto;
7558 parent->l3_cls_refcnt[i]++;
7559 add_usr_cls = 1;
7560 break;
7561 }
7562 }
7563 if (!add_usr_cls) {
7564 pr_info(PFX "niu%d: %s niu_add_ethtool_tcam_entry: "
7565 "Could not find/insert class for pid %d\n",
7566 parent->index, np->dev->name, uspec->proto);
7567 ret = -EINVAL;
7568 goto out;
7569 }
7570 niu_unlock_parent(np, flags);
7571 } else {
7572 if (!niu_ethflow_to_class(fsp->flow_type, &class)) {
7573 return -EINVAL;
7574 }
7575 }
7576
7577 niu_lock_parent(np, flags);
7578
7579 idx = tcam_get_index(np, idx);
7580 tp = &parent->tcam[idx];
7581
7582 memset(tp, 0, sizeof(*tp));
7583
7584 /* fill in the tcam key and mask */
7585 switch (fsp->flow_type) {
7586 case TCP_V4_FLOW:
7587 case UDP_V4_FLOW:
7588 case SCTP_V4_FLOW:
7589 case AH_V4_FLOW:
7590 case ESP_V4_FLOW:
7591 niu_get_tcamkey_from_ip4fs(fsp, tp, l2_rdc_table, class);
7592 break;
7593 case TCP_V6_FLOW:
7594 case UDP_V6_FLOW:
7595 case SCTP_V6_FLOW:
7596 case AH_V6_FLOW:
7597 case ESP_V6_FLOW:
7598 /* Not yet implemented */
7599 pr_info(PFX "niu%d: %s In niu_add_ethtool_tcam_entry: "
7600 "flow %d for IPv6 not implemented\n\n",
7601 parent->index, np->dev->name, fsp->flow_type);
7602 ret = -EINVAL;
7603 goto out;
7604 case IP_USER_FLOW:
7605 if (fsp->h_u.usr_ip4_spec.ip_ver == ETH_RX_NFC_IP4) {
7606 niu_get_tcamkey_from_ip4fs(fsp, tp, l2_rdc_table,
7607 class);
7608 } else {
7609 /* Not yet implemented */
7610 pr_info(PFX "niu%d: %s In niu_add_ethtool_tcam_entry: "
7611 "usr flow for IPv6 not implemented\n\n",
7612 parent->index, np->dev->name);
7613 ret = -EINVAL;
7614 goto out;
7615 }
7616 break;
7617 default:
7618 pr_info(PFX "niu%d: %s In niu_add_ethtool_tcam_entry: "
7619 "Unknown flow type %d\n\n",
7620 parent->index, np->dev->name, fsp->flow_type);
7621 ret = -EINVAL;
7622 goto out;
7623 }
7624
7625 /* fill in the assoc data */
7626 if (fsp->ring_cookie == RX_CLS_FLOW_DISC) {
7627 tp->assoc_data = TCAM_ASSOCDATA_DISC;
7628 } else {
7629 if (fsp->ring_cookie >= np->num_rx_rings) {
7630 pr_info(PFX "niu%d: %s In niu_add_ethtool_tcam_entry: "
7631 "Invalid RX ring %lld\n\n",
7632 parent->index, np->dev->name,
7633 (long long) fsp->ring_cookie);
7634 ret = -EINVAL;
7635 goto out;
7636 }
7637 tp->assoc_data = (TCAM_ASSOCDATA_TRES_USE_OFFSET |
7638 (fsp->ring_cookie <<
7639 TCAM_ASSOCDATA_OFFSET_SHIFT));
7640 }
7641
7642 err = tcam_write(np, idx, tp->key, tp->key_mask);
7643 if (err) {
7644 ret = -EINVAL;
7645 goto out;
7646 }
7647 err = tcam_assoc_write(np, idx, tp->assoc_data);
7648 if (err) {
7649 ret = -EINVAL;
7650 goto out;
7651 }
7652
7653 /* validate the entry */
7654 tp->valid = 1;
7655 np->clas.tcam_valid_entries++;
7656 out:
7657 niu_unlock_parent(np, flags);
7658
7659 return ret;
7660 }
7661
7662 static int niu_del_ethtool_tcam_entry(struct niu *np, u32 loc)
7663 {
7664 struct niu_parent *parent = np->parent;
7665 struct niu_tcam_entry *tp;
7666 u16 idx;
7667 unsigned long flags;
7668 u64 class;
7669 int ret = 0;
7670
7671 if (loc >= tcam_get_size(np))
7672 return -EINVAL;
7673
7674 niu_lock_parent(np, flags);
7675
7676 idx = tcam_get_index(np, loc);
7677 tp = &parent->tcam[idx];
7678
7679 /* if the entry is of a user defined class, then update*/
7680 class = (tp->key[0] & TCAM_V4KEY0_CLASS_CODE) >>
7681 TCAM_V4KEY0_CLASS_CODE_SHIFT;
7682
7683 if (class >= CLASS_CODE_USER_PROG1 && class <= CLASS_CODE_USER_PROG4) {
7684 int i;
7685 for (i = 0; i < NIU_L3_PROG_CLS; i++) {
7686 if (parent->l3_cls[i] == class) {
7687 parent->l3_cls_refcnt[i]--;
7688 if (!parent->l3_cls_refcnt[i]) {
7689 /* disable class */
7690 ret = tcam_user_ip_class_enable(np,
7691 class,
7692 0);
7693 if (ret)
7694 goto out;
7695 parent->l3_cls[i] = 0;
7696 parent->l3_cls_pid[i] = 0;
7697 }
7698 break;
7699 }
7700 }
7701 if (i == NIU_L3_PROG_CLS) {
7702 pr_info(PFX "niu%d: %s In niu_del_ethtool_tcam_entry,"
7703 "Usr class 0x%llx not found \n",
7704 parent->index, np->dev->name,
7705 (unsigned long long) class);
7706 ret = -EINVAL;
7707 goto out;
7708 }
7709 }
7710
7711 ret = tcam_flush(np, idx);
7712 if (ret)
7713 goto out;
7714
7715 /* invalidate the entry */
7716 tp->valid = 0;
7717 np->clas.tcam_valid_entries--;
7718 out:
7719 niu_unlock_parent(np, flags);
7720
7721 return ret;
7722 }
7723
7724 static int niu_set_nfc(struct net_device *dev, struct ethtool_rxnfc *cmd)
7725 {
7726 struct niu *np = netdev_priv(dev);
7727 int ret = 0;
7728
7729 switch (cmd->cmd) {
7730 case ETHTOOL_SRXFH:
7731 ret = niu_set_hash_opts(np, cmd);
7732 break;
7733 case ETHTOOL_SRXCLSRLINS:
7734 ret = niu_add_ethtool_tcam_entry(np, cmd);
7735 break;
7736 case ETHTOOL_SRXCLSRLDEL:
7737 ret = niu_del_ethtool_tcam_entry(np, cmd->fs.location);
7738 break;
7739 default:
7740 ret = -EINVAL;
7741 break;
7742 }
7743
7744 return ret;
7745 }
7746
7747 static const struct {
7748 const char string[ETH_GSTRING_LEN];
7749 } niu_xmac_stat_keys[] = {
7750 { "tx_frames" },
7751 { "tx_bytes" },
7752 { "tx_fifo_errors" },
7753 { "tx_overflow_errors" },
7754 { "tx_max_pkt_size_errors" },
7755 { "tx_underflow_errors" },
7756 { "rx_local_faults" },
7757 { "rx_remote_faults" },
7758 { "rx_link_faults" },
7759 { "rx_align_errors" },
7760 { "rx_frags" },
7761 { "rx_mcasts" },
7762 { "rx_bcasts" },
7763 { "rx_hist_cnt1" },
7764 { "rx_hist_cnt2" },
7765 { "rx_hist_cnt3" },
7766 { "rx_hist_cnt4" },
7767 { "rx_hist_cnt5" },
7768 { "rx_hist_cnt6" },
7769 { "rx_hist_cnt7" },
7770 { "rx_octets" },
7771 { "rx_code_violations" },
7772 { "rx_len_errors" },
7773 { "rx_crc_errors" },
7774 { "rx_underflows" },
7775 { "rx_overflows" },
7776 { "pause_off_state" },
7777 { "pause_on_state" },
7778 { "pause_received" },
7779 };
7780
7781 #define NUM_XMAC_STAT_KEYS ARRAY_SIZE(niu_xmac_stat_keys)
7782
7783 static const struct {
7784 const char string[ETH_GSTRING_LEN];
7785 } niu_bmac_stat_keys[] = {
7786 { "tx_underflow_errors" },
7787 { "tx_max_pkt_size_errors" },
7788 { "tx_bytes" },
7789 { "tx_frames" },
7790 { "rx_overflows" },
7791 { "rx_frames" },
7792 { "rx_align_errors" },
7793 { "rx_crc_errors" },
7794 { "rx_len_errors" },
7795 { "pause_off_state" },
7796 { "pause_on_state" },
7797 { "pause_received" },
7798 };
7799
7800 #define NUM_BMAC_STAT_KEYS ARRAY_SIZE(niu_bmac_stat_keys)
7801
7802 static const struct {
7803 const char string[ETH_GSTRING_LEN];
7804 } niu_rxchan_stat_keys[] = {
7805 { "rx_channel" },
7806 { "rx_packets" },
7807 { "rx_bytes" },
7808 { "rx_dropped" },
7809 { "rx_errors" },
7810 };
7811
7812 #define NUM_RXCHAN_STAT_KEYS ARRAY_SIZE(niu_rxchan_stat_keys)
7813
7814 static const struct {
7815 const char string[ETH_GSTRING_LEN];
7816 } niu_txchan_stat_keys[] = {
7817 { "tx_channel" },
7818 { "tx_packets" },
7819 { "tx_bytes" },
7820 { "tx_errors" },
7821 };
7822
7823 #define NUM_TXCHAN_STAT_KEYS ARRAY_SIZE(niu_txchan_stat_keys)
7824
7825 static void niu_get_strings(struct net_device *dev, u32 stringset, u8 *data)
7826 {
7827 struct niu *np = netdev_priv(dev);
7828 int i;
7829
7830 if (stringset != ETH_SS_STATS)
7831 return;
7832
7833 if (np->flags & NIU_FLAGS_XMAC) {
7834 memcpy(data, niu_xmac_stat_keys,
7835 sizeof(niu_xmac_stat_keys));
7836 data += sizeof(niu_xmac_stat_keys);
7837 } else {
7838 memcpy(data, niu_bmac_stat_keys,
7839 sizeof(niu_bmac_stat_keys));
7840 data += sizeof(niu_bmac_stat_keys);
7841 }
7842 for (i = 0; i < np->num_rx_rings; i++) {
7843 memcpy(data, niu_rxchan_stat_keys,
7844 sizeof(niu_rxchan_stat_keys));
7845 data += sizeof(niu_rxchan_stat_keys);
7846 }
7847 for (i = 0; i < np->num_tx_rings; i++) {
7848 memcpy(data, niu_txchan_stat_keys,
7849 sizeof(niu_txchan_stat_keys));
7850 data += sizeof(niu_txchan_stat_keys);
7851 }
7852 }
7853
7854 static int niu_get_sset_count(struct net_device *dev, int stringset)
7855 {
7856 struct niu *np = netdev_priv(dev);
7857
7858 if (stringset != ETH_SS_STATS)
7859 return -EINVAL;
7860
7861 return ((np->flags & NIU_FLAGS_XMAC ?
7862 NUM_XMAC_STAT_KEYS :
7863 NUM_BMAC_STAT_KEYS) +
7864 (np->num_rx_rings * NUM_RXCHAN_STAT_KEYS) +
7865 (np->num_tx_rings * NUM_TXCHAN_STAT_KEYS));
7866 }
7867
7868 static void niu_get_ethtool_stats(struct net_device *dev,
7869 struct ethtool_stats *stats, u64 *data)
7870 {
7871 struct niu *np = netdev_priv(dev);
7872 int i;
7873
7874 niu_sync_mac_stats(np);
7875 if (np->flags & NIU_FLAGS_XMAC) {
7876 memcpy(data, &np->mac_stats.xmac,
7877 sizeof(struct niu_xmac_stats));
7878 data += (sizeof(struct niu_xmac_stats) / sizeof(u64));
7879 } else {
7880 memcpy(data, &np->mac_stats.bmac,
7881 sizeof(struct niu_bmac_stats));
7882 data += (sizeof(struct niu_bmac_stats) / sizeof(u64));
7883 }
7884 for (i = 0; i < np->num_rx_rings; i++) {
7885 struct rx_ring_info *rp = &np->rx_rings[i];
7886
7887 niu_sync_rx_discard_stats(np, rp, 0);
7888
7889 data[0] = rp->rx_channel;
7890 data[1] = rp->rx_packets;
7891 data[2] = rp->rx_bytes;
7892 data[3] = rp->rx_dropped;
7893 data[4] = rp->rx_errors;
7894 data += 5;
7895 }
7896 for (i = 0; i < np->num_tx_rings; i++) {
7897 struct tx_ring_info *rp = &np->tx_rings[i];
7898
7899 data[0] = rp->tx_channel;
7900 data[1] = rp->tx_packets;
7901 data[2] = rp->tx_bytes;
7902 data[3] = rp->tx_errors;
7903 data += 4;
7904 }
7905 }
7906
7907 static u64 niu_led_state_save(struct niu *np)
7908 {
7909 if (np->flags & NIU_FLAGS_XMAC)
7910 return nr64_mac(XMAC_CONFIG);
7911 else
7912 return nr64_mac(BMAC_XIF_CONFIG);
7913 }
7914
7915 static void niu_led_state_restore(struct niu *np, u64 val)
7916 {
7917 if (np->flags & NIU_FLAGS_XMAC)
7918 nw64_mac(XMAC_CONFIG, val);
7919 else
7920 nw64_mac(BMAC_XIF_CONFIG, val);
7921 }
7922
7923 static void niu_force_led(struct niu *np, int on)
7924 {
7925 u64 val, reg, bit;
7926
7927 if (np->flags & NIU_FLAGS_XMAC) {
7928 reg = XMAC_CONFIG;
7929 bit = XMAC_CONFIG_FORCE_LED_ON;
7930 } else {
7931 reg = BMAC_XIF_CONFIG;
7932 bit = BMAC_XIF_CONFIG_LINK_LED;
7933 }
7934
7935 val = nr64_mac(reg);
7936 if (on)
7937 val |= bit;
7938 else
7939 val &= ~bit;
7940 nw64_mac(reg, val);
7941 }
7942
7943 static int niu_phys_id(struct net_device *dev, u32 data)
7944 {
7945 struct niu *np = netdev_priv(dev);
7946 u64 orig_led_state;
7947 int i;
7948
7949 if (!netif_running(dev))
7950 return -EAGAIN;
7951
7952 if (data == 0)
7953 data = 2;
7954
7955 orig_led_state = niu_led_state_save(np);
7956 for (i = 0; i < (data * 2); i++) {
7957 int on = ((i % 2) == 0);
7958
7959 niu_force_led(np, on);
7960
7961 if (msleep_interruptible(500))
7962 break;
7963 }
7964 niu_led_state_restore(np, orig_led_state);
7965
7966 return 0;
7967 }
7968
7969 static const struct ethtool_ops niu_ethtool_ops = {
7970 .get_drvinfo = niu_get_drvinfo,
7971 .get_link = ethtool_op_get_link,
7972 .get_msglevel = niu_get_msglevel,
7973 .set_msglevel = niu_set_msglevel,
7974 .nway_reset = niu_nway_reset,
7975 .get_eeprom_len = niu_get_eeprom_len,
7976 .get_eeprom = niu_get_eeprom,
7977 .get_settings = niu_get_settings,
7978 .set_settings = niu_set_settings,
7979 .get_strings = niu_get_strings,
7980 .get_sset_count = niu_get_sset_count,
7981 .get_ethtool_stats = niu_get_ethtool_stats,
7982 .phys_id = niu_phys_id,
7983 .get_rxnfc = niu_get_nfc,
7984 .set_rxnfc = niu_set_nfc,
7985 };
7986
7987 static int niu_ldg_assign_ldn(struct niu *np, struct niu_parent *parent,
7988 int ldg, int ldn)
7989 {
7990 if (ldg < NIU_LDG_MIN || ldg > NIU_LDG_MAX)
7991 return -EINVAL;
7992 if (ldn < 0 || ldn > LDN_MAX)
7993 return -EINVAL;
7994
7995 parent->ldg_map[ldn] = ldg;
7996
7997 if (np->parent->plat_type == PLAT_TYPE_NIU) {
7998 /* On N2 NIU, the ldn-->ldg assignments are setup and fixed by
7999 * the firmware, and we're not supposed to change them.
8000 * Validate the mapping, because if it's wrong we probably
8001 * won't get any interrupts and that's painful to debug.
8002 */
8003 if (nr64(LDG_NUM(ldn)) != ldg) {
8004 dev_err(np->device, PFX "Port %u, mis-matched "
8005 "LDG assignment "
8006 "for ldn %d, should be %d is %llu\n",
8007 np->port, ldn, ldg,
8008 (unsigned long long) nr64(LDG_NUM(ldn)));
8009 return -EINVAL;
8010 }
8011 } else
8012 nw64(LDG_NUM(ldn), ldg);
8013
8014 return 0;
8015 }
8016
8017 static int niu_set_ldg_timer_res(struct niu *np, int res)
8018 {
8019 if (res < 0 || res > LDG_TIMER_RES_VAL)
8020 return -EINVAL;
8021
8022
8023 nw64(LDG_TIMER_RES, res);
8024
8025 return 0;
8026 }
8027
8028 static int niu_set_ldg_sid(struct niu *np, int ldg, int func, int vector)
8029 {
8030 if ((ldg < NIU_LDG_MIN || ldg > NIU_LDG_MAX) ||
8031 (func < 0 || func > 3) ||
8032 (vector < 0 || vector > 0x1f))
8033 return -EINVAL;
8034
8035 nw64(SID(ldg), (func << SID_FUNC_SHIFT) | vector);
8036
8037 return 0;
8038 }
8039
8040 static int __devinit niu_pci_eeprom_read(struct niu *np, u32 addr)
8041 {
8042 u64 frame, frame_base = (ESPC_PIO_STAT_READ_START |
8043 (addr << ESPC_PIO_STAT_ADDR_SHIFT));
8044 int limit;
8045
8046 if (addr > (ESPC_PIO_STAT_ADDR >> ESPC_PIO_STAT_ADDR_SHIFT))
8047 return -EINVAL;
8048
8049 frame = frame_base;
8050 nw64(ESPC_PIO_STAT, frame);
8051 limit = 64;
8052 do {
8053 udelay(5);
8054 frame = nr64(ESPC_PIO_STAT);
8055 if (frame & ESPC_PIO_STAT_READ_END)
8056 break;
8057 } while (limit--);
8058 if (!(frame & ESPC_PIO_STAT_READ_END)) {
8059 dev_err(np->device, PFX "EEPROM read timeout frame[%llx]\n",
8060 (unsigned long long) frame);
8061 return -ENODEV;
8062 }
8063
8064 frame = frame_base;
8065 nw64(ESPC_PIO_STAT, frame);
8066 limit = 64;
8067 do {
8068 udelay(5);
8069 frame = nr64(ESPC_PIO_STAT);
8070 if (frame & ESPC_PIO_STAT_READ_END)
8071 break;
8072 } while (limit--);
8073 if (!(frame & ESPC_PIO_STAT_READ_END)) {
8074 dev_err(np->device, PFX "EEPROM read timeout frame[%llx]\n",
8075 (unsigned long long) frame);
8076 return -ENODEV;
8077 }
8078
8079 frame = nr64(ESPC_PIO_STAT);
8080 return (frame & ESPC_PIO_STAT_DATA) >> ESPC_PIO_STAT_DATA_SHIFT;
8081 }
8082
8083 static int __devinit niu_pci_eeprom_read16(struct niu *np, u32 off)
8084 {
8085 int err = niu_pci_eeprom_read(np, off);
8086 u16 val;
8087
8088 if (err < 0)
8089 return err;
8090 val = (err << 8);
8091 err = niu_pci_eeprom_read(np, off + 1);
8092 if (err < 0)
8093 return err;
8094 val |= (err & 0xff);
8095
8096 return val;
8097 }
8098
8099 static int __devinit niu_pci_eeprom_read16_swp(struct niu *np, u32 off)
8100 {
8101 int err = niu_pci_eeprom_read(np, off);
8102 u16 val;
8103
8104 if (err < 0)
8105 return err;
8106
8107 val = (err & 0xff);
8108 err = niu_pci_eeprom_read(np, off + 1);
8109 if (err < 0)
8110 return err;
8111
8112 val |= (err & 0xff) << 8;
8113
8114 return val;
8115 }
8116
8117 static int __devinit niu_pci_vpd_get_propname(struct niu *np,
8118 u32 off,
8119 char *namebuf,
8120 int namebuf_len)
8121 {
8122 int i;
8123
8124 for (i = 0; i < namebuf_len; i++) {
8125 int err = niu_pci_eeprom_read(np, off + i);
8126 if (err < 0)
8127 return err;
8128 *namebuf++ = err;
8129 if (!err)
8130 break;
8131 }
8132 if (i >= namebuf_len)
8133 return -EINVAL;
8134
8135 return i + 1;
8136 }
8137
8138 static void __devinit niu_vpd_parse_version(struct niu *np)
8139 {
8140 struct niu_vpd *vpd = &np->vpd;
8141 int len = strlen(vpd->version) + 1;
8142 const char *s = vpd->version;
8143 int i;
8144
8145 for (i = 0; i < len - 5; i++) {
8146 if (!strncmp(s + i, "FCode ", 6))
8147 break;
8148 }
8149 if (i >= len - 5)
8150 return;
8151
8152 s += i + 5;
8153 sscanf(s, "%d.%d", &vpd->fcode_major, &vpd->fcode_minor);
8154
8155 niudbg(PROBE, "VPD_SCAN: FCODE major(%d) minor(%d)\n",
8156 vpd->fcode_major, vpd->fcode_minor);
8157 if (vpd->fcode_major > NIU_VPD_MIN_MAJOR ||
8158 (vpd->fcode_major == NIU_VPD_MIN_MAJOR &&
8159 vpd->fcode_minor >= NIU_VPD_MIN_MINOR))
8160 np->flags |= NIU_FLAGS_VPD_VALID;
8161 }
8162
8163 /* ESPC_PIO_EN_ENABLE must be set */
8164 static int __devinit niu_pci_vpd_scan_props(struct niu *np,
8165 u32 start, u32 end)
8166 {
8167 unsigned int found_mask = 0;
8168 #define FOUND_MASK_MODEL 0x00000001
8169 #define FOUND_MASK_BMODEL 0x00000002
8170 #define FOUND_MASK_VERS 0x00000004
8171 #define FOUND_MASK_MAC 0x00000008
8172 #define FOUND_MASK_NMAC 0x00000010
8173 #define FOUND_MASK_PHY 0x00000020
8174 #define FOUND_MASK_ALL 0x0000003f
8175
8176 niudbg(PROBE, "VPD_SCAN: start[%x] end[%x]\n",
8177 start, end);
8178 while (start < end) {
8179 int len, err, instance, type, prop_len;
8180 char namebuf[64];
8181 u8 *prop_buf;
8182 int max_len;
8183
8184 if (found_mask == FOUND_MASK_ALL) {
8185 niu_vpd_parse_version(np);
8186 return 1;
8187 }
8188
8189 err = niu_pci_eeprom_read(np, start + 2);
8190 if (err < 0)
8191 return err;
8192 len = err;
8193 start += 3;
8194
8195 instance = niu_pci_eeprom_read(np, start);
8196 type = niu_pci_eeprom_read(np, start + 3);
8197 prop_len = niu_pci_eeprom_read(np, start + 4);
8198 err = niu_pci_vpd_get_propname(np, start + 5, namebuf, 64);
8199 if (err < 0)
8200 return err;
8201
8202 prop_buf = NULL;
8203 max_len = 0;
8204 if (!strcmp(namebuf, "model")) {
8205 prop_buf = np->vpd.model;
8206 max_len = NIU_VPD_MODEL_MAX;
8207 found_mask |= FOUND_MASK_MODEL;
8208 } else if (!strcmp(namebuf, "board-model")) {
8209 prop_buf = np->vpd.board_model;
8210 max_len = NIU_VPD_BD_MODEL_MAX;
8211 found_mask |= FOUND_MASK_BMODEL;
8212 } else if (!strcmp(namebuf, "version")) {
8213 prop_buf = np->vpd.version;
8214 max_len = NIU_VPD_VERSION_MAX;
8215 found_mask |= FOUND_MASK_VERS;
8216 } else if (!strcmp(namebuf, "local-mac-address")) {
8217 prop_buf = np->vpd.local_mac;
8218 max_len = ETH_ALEN;
8219 found_mask |= FOUND_MASK_MAC;
8220 } else if (!strcmp(namebuf, "num-mac-addresses")) {
8221 prop_buf = &np->vpd.mac_num;
8222 max_len = 1;
8223 found_mask |= FOUND_MASK_NMAC;
8224 } else if (!strcmp(namebuf, "phy-type")) {
8225 prop_buf = np->vpd.phy_type;
8226 max_len = NIU_VPD_PHY_TYPE_MAX;
8227 found_mask |= FOUND_MASK_PHY;
8228 }
8229
8230 if (max_len && prop_len > max_len) {
8231 dev_err(np->device, PFX "Property '%s' length (%d) is "
8232 "too long.\n", namebuf, prop_len);
8233 return -EINVAL;
8234 }
8235
8236 if (prop_buf) {
8237 u32 off = start + 5 + err;
8238 int i;
8239
8240 niudbg(PROBE, "VPD_SCAN: Reading in property [%s] "
8241 "len[%d]\n", namebuf, prop_len);
8242 for (i = 0; i < prop_len; i++)
8243 *prop_buf++ = niu_pci_eeprom_read(np, off + i);
8244 }
8245
8246 start += len;
8247 }
8248
8249 return 0;
8250 }
8251
8252 /* ESPC_PIO_EN_ENABLE must be set */
8253 static void __devinit niu_pci_vpd_fetch(struct niu *np, u32 start)
8254 {
8255 u32 offset;
8256 int err;
8257
8258 err = niu_pci_eeprom_read16_swp(np, start + 1);
8259 if (err < 0)
8260 return;
8261
8262 offset = err + 3;
8263
8264 while (start + offset < ESPC_EEPROM_SIZE) {
8265 u32 here = start + offset;
8266 u32 end;
8267
8268 err = niu_pci_eeprom_read(np, here);
8269 if (err != 0x90)
8270 return;
8271
8272 err = niu_pci_eeprom_read16_swp(np, here + 1);
8273 if (err < 0)
8274 return;
8275
8276 here = start + offset + 3;
8277 end = start + offset + err;
8278
8279 offset += err;
8280
8281 err = niu_pci_vpd_scan_props(np, here, end);
8282 if (err < 0 || err == 1)
8283 return;
8284 }
8285 }
8286
8287 /* ESPC_PIO_EN_ENABLE must be set */
8288 static u32 __devinit niu_pci_vpd_offset(struct niu *np)
8289 {
8290 u32 start = 0, end = ESPC_EEPROM_SIZE, ret;
8291 int err;
8292
8293 while (start < end) {
8294 ret = start;
8295
8296 /* ROM header signature? */
8297 err = niu_pci_eeprom_read16(np, start + 0);
8298 if (err != 0x55aa)
8299 return 0;
8300
8301 /* Apply offset to PCI data structure. */
8302 err = niu_pci_eeprom_read16(np, start + 23);
8303 if (err < 0)
8304 return 0;
8305 start += err;
8306
8307 /* Check for "PCIR" signature. */
8308 err = niu_pci_eeprom_read16(np, start + 0);
8309 if (err != 0x5043)
8310 return 0;
8311 err = niu_pci_eeprom_read16(np, start + 2);
8312 if (err != 0x4952)
8313 return 0;
8314
8315 /* Check for OBP image type. */
8316 err = niu_pci_eeprom_read(np, start + 20);
8317 if (err < 0)
8318 return 0;
8319 if (err != 0x01) {
8320 err = niu_pci_eeprom_read(np, ret + 2);
8321 if (err < 0)
8322 return 0;
8323
8324 start = ret + (err * 512);
8325 continue;
8326 }
8327
8328 err = niu_pci_eeprom_read16_swp(np, start + 8);
8329 if (err < 0)
8330 return err;
8331 ret += err;
8332
8333 err = niu_pci_eeprom_read(np, ret + 0);
8334 if (err != 0x82)
8335 return 0;
8336
8337 return ret;
8338 }
8339
8340 return 0;
8341 }
8342
8343 static int __devinit niu_phy_type_prop_decode(struct niu *np,
8344 const char *phy_prop)
8345 {
8346 if (!strcmp(phy_prop, "mif")) {
8347 /* 1G copper, MII */
8348 np->flags &= ~(NIU_FLAGS_FIBER |
8349 NIU_FLAGS_10G);
8350 np->mac_xcvr = MAC_XCVR_MII;
8351 } else if (!strcmp(phy_prop, "xgf")) {
8352 /* 10G fiber, XPCS */
8353 np->flags |= (NIU_FLAGS_10G |
8354 NIU_FLAGS_FIBER);
8355 np->mac_xcvr = MAC_XCVR_XPCS;
8356 } else if (!strcmp(phy_prop, "pcs")) {
8357 /* 1G fiber, PCS */
8358 np->flags &= ~NIU_FLAGS_10G;
8359 np->flags |= NIU_FLAGS_FIBER;
8360 np->mac_xcvr = MAC_XCVR_PCS;
8361 } else if (!strcmp(phy_prop, "xgc")) {
8362 /* 10G copper, XPCS */
8363 np->flags |= NIU_FLAGS_10G;
8364 np->flags &= ~NIU_FLAGS_FIBER;
8365 np->mac_xcvr = MAC_XCVR_XPCS;
8366 } else if (!strcmp(phy_prop, "xgsd") || !strcmp(phy_prop, "gsd")) {
8367 /* 10G Serdes or 1G Serdes, default to 10G */
8368 np->flags |= NIU_FLAGS_10G;
8369 np->flags &= ~NIU_FLAGS_FIBER;
8370 np->flags |= NIU_FLAGS_XCVR_SERDES;
8371 np->mac_xcvr = MAC_XCVR_XPCS;
8372 } else {
8373 return -EINVAL;
8374 }
8375 return 0;
8376 }
8377
8378 static int niu_pci_vpd_get_nports(struct niu *np)
8379 {
8380 int ports = 0;
8381
8382 if ((!strcmp(np->vpd.model, NIU_QGC_LP_MDL_STR)) ||
8383 (!strcmp(np->vpd.model, NIU_QGC_PEM_MDL_STR)) ||
8384 (!strcmp(np->vpd.model, NIU_MARAMBA_MDL_STR)) ||
8385 (!strcmp(np->vpd.model, NIU_KIMI_MDL_STR)) ||
8386 (!strcmp(np->vpd.model, NIU_ALONSO_MDL_STR))) {
8387 ports = 4;
8388 } else if ((!strcmp(np->vpd.model, NIU_2XGF_LP_MDL_STR)) ||
8389 (!strcmp(np->vpd.model, NIU_2XGF_PEM_MDL_STR)) ||
8390 (!strcmp(np->vpd.model, NIU_FOXXY_MDL_STR)) ||
8391 (!strcmp(np->vpd.model, NIU_2XGF_MRVL_MDL_STR))) {
8392 ports = 2;
8393 }
8394
8395 return ports;
8396 }
8397
8398 static void __devinit niu_pci_vpd_validate(struct niu *np)
8399 {
8400 struct net_device *dev = np->dev;
8401 struct niu_vpd *vpd = &np->vpd;
8402 u8 val8;
8403
8404 if (!is_valid_ether_addr(&vpd->local_mac[0])) {
8405 dev_err(np->device, PFX "VPD MAC invalid, "
8406 "falling back to SPROM.\n");
8407
8408 np->flags &= ~NIU_FLAGS_VPD_VALID;
8409 return;
8410 }
8411
8412 if (!strcmp(np->vpd.model, NIU_ALONSO_MDL_STR) ||
8413 !strcmp(np->vpd.model, NIU_KIMI_MDL_STR)) {
8414 np->flags |= NIU_FLAGS_10G;
8415 np->flags &= ~NIU_FLAGS_FIBER;
8416 np->flags |= NIU_FLAGS_XCVR_SERDES;
8417 np->mac_xcvr = MAC_XCVR_PCS;
8418 if (np->port > 1) {
8419 np->flags |= NIU_FLAGS_FIBER;
8420 np->flags &= ~NIU_FLAGS_10G;
8421 }
8422 if (np->flags & NIU_FLAGS_10G)
8423 np->mac_xcvr = MAC_XCVR_XPCS;
8424 } else if (!strcmp(np->vpd.model, NIU_FOXXY_MDL_STR)) {
8425 np->flags |= (NIU_FLAGS_10G | NIU_FLAGS_FIBER |
8426 NIU_FLAGS_HOTPLUG_PHY);
8427 } else if (niu_phy_type_prop_decode(np, np->vpd.phy_type)) {
8428 dev_err(np->device, PFX "Illegal phy string [%s].\n",
8429 np->vpd.phy_type);
8430 dev_err(np->device, PFX "Falling back to SPROM.\n");
8431 np->flags &= ~NIU_FLAGS_VPD_VALID;
8432 return;
8433 }
8434
8435 memcpy(dev->perm_addr, vpd->local_mac, ETH_ALEN);
8436
8437 val8 = dev->perm_addr[5];
8438 dev->perm_addr[5] += np->port;
8439 if (dev->perm_addr[5] < val8)
8440 dev->perm_addr[4]++;
8441
8442 memcpy(dev->dev_addr, dev->perm_addr, dev->addr_len);
8443 }
8444
8445 static int __devinit niu_pci_probe_sprom(struct niu *np)
8446 {
8447 struct net_device *dev = np->dev;
8448 int len, i;
8449 u64 val, sum;
8450 u8 val8;
8451
8452 val = (nr64(ESPC_VER_IMGSZ) & ESPC_VER_IMGSZ_IMGSZ);
8453 val >>= ESPC_VER_IMGSZ_IMGSZ_SHIFT;
8454 len = val / 4;
8455
8456 np->eeprom_len = len;
8457
8458 niudbg(PROBE, "SPROM: Image size %llu\n", (unsigned long long) val);
8459
8460 sum = 0;
8461 for (i = 0; i < len; i++) {
8462 val = nr64(ESPC_NCR(i));
8463 sum += (val >> 0) & 0xff;
8464 sum += (val >> 8) & 0xff;
8465 sum += (val >> 16) & 0xff;
8466 sum += (val >> 24) & 0xff;
8467 }
8468 niudbg(PROBE, "SPROM: Checksum %x\n", (int)(sum & 0xff));
8469 if ((sum & 0xff) != 0xab) {
8470 dev_err(np->device, PFX "Bad SPROM checksum "
8471 "(%x, should be 0xab)\n", (int) (sum & 0xff));
8472 return -EINVAL;
8473 }
8474
8475 val = nr64(ESPC_PHY_TYPE);
8476 switch (np->port) {
8477 case 0:
8478 val8 = (val & ESPC_PHY_TYPE_PORT0) >>
8479 ESPC_PHY_TYPE_PORT0_SHIFT;
8480 break;
8481 case 1:
8482 val8 = (val & ESPC_PHY_TYPE_PORT1) >>
8483 ESPC_PHY_TYPE_PORT1_SHIFT;
8484 break;
8485 case 2:
8486 val8 = (val & ESPC_PHY_TYPE_PORT2) >>
8487 ESPC_PHY_TYPE_PORT2_SHIFT;
8488 break;
8489 case 3:
8490 val8 = (val & ESPC_PHY_TYPE_PORT3) >>
8491 ESPC_PHY_TYPE_PORT3_SHIFT;
8492 break;
8493 default:
8494 dev_err(np->device, PFX "Bogus port number %u\n",
8495 np->port);
8496 return -EINVAL;
8497 }
8498 niudbg(PROBE, "SPROM: PHY type %x\n", val8);
8499
8500 switch (val8) {
8501 case ESPC_PHY_TYPE_1G_COPPER:
8502 /* 1G copper, MII */
8503 np->flags &= ~(NIU_FLAGS_FIBER |
8504 NIU_FLAGS_10G);
8505 np->mac_xcvr = MAC_XCVR_MII;
8506 break;
8507
8508 case ESPC_PHY_TYPE_1G_FIBER:
8509 /* 1G fiber, PCS */
8510 np->flags &= ~NIU_FLAGS_10G;
8511 np->flags |= NIU_FLAGS_FIBER;
8512 np->mac_xcvr = MAC_XCVR_PCS;
8513 break;
8514
8515 case ESPC_PHY_TYPE_10G_COPPER:
8516 /* 10G copper, XPCS */
8517 np->flags |= NIU_FLAGS_10G;
8518 np->flags &= ~NIU_FLAGS_FIBER;
8519 np->mac_xcvr = MAC_XCVR_XPCS;
8520 break;
8521
8522 case ESPC_PHY_TYPE_10G_FIBER:
8523 /* 10G fiber, XPCS */
8524 np->flags |= (NIU_FLAGS_10G |
8525 NIU_FLAGS_FIBER);
8526 np->mac_xcvr = MAC_XCVR_XPCS;
8527 break;
8528
8529 default:
8530 dev_err(np->device, PFX "Bogus SPROM phy type %u\n", val8);
8531 return -EINVAL;
8532 }
8533
8534 val = nr64(ESPC_MAC_ADDR0);
8535 niudbg(PROBE, "SPROM: MAC_ADDR0[%08llx]\n",
8536 (unsigned long long) val);
8537 dev->perm_addr[0] = (val >> 0) & 0xff;
8538 dev->perm_addr[1] = (val >> 8) & 0xff;
8539 dev->perm_addr[2] = (val >> 16) & 0xff;
8540 dev->perm_addr[3] = (val >> 24) & 0xff;
8541
8542 val = nr64(ESPC_MAC_ADDR1);
8543 niudbg(PROBE, "SPROM: MAC_ADDR1[%08llx]\n",
8544 (unsigned long long) val);
8545 dev->perm_addr[4] = (val >> 0) & 0xff;
8546 dev->perm_addr[5] = (val >> 8) & 0xff;
8547
8548 if (!is_valid_ether_addr(&dev->perm_addr[0])) {
8549 dev_err(np->device, PFX "SPROM MAC address invalid\n");
8550 dev_err(np->device, PFX "[ \n");
8551 for (i = 0; i < 6; i++)
8552 printk("%02x ", dev->perm_addr[i]);
8553 printk("]\n");
8554 return -EINVAL;
8555 }
8556
8557 val8 = dev->perm_addr[5];
8558 dev->perm_addr[5] += np->port;
8559 if (dev->perm_addr[5] < val8)
8560 dev->perm_addr[4]++;
8561
8562 memcpy(dev->dev_addr, dev->perm_addr, dev->addr_len);
8563
8564 val = nr64(ESPC_MOD_STR_LEN);
8565 niudbg(PROBE, "SPROM: MOD_STR_LEN[%llu]\n",
8566 (unsigned long long) val);
8567 if (val >= 8 * 4)
8568 return -EINVAL;
8569
8570 for (i = 0; i < val; i += 4) {
8571 u64 tmp = nr64(ESPC_NCR(5 + (i / 4)));
8572
8573 np->vpd.model[i + 3] = (tmp >> 0) & 0xff;
8574 np->vpd.model[i + 2] = (tmp >> 8) & 0xff;
8575 np->vpd.model[i + 1] = (tmp >> 16) & 0xff;
8576 np->vpd.model[i + 0] = (tmp >> 24) & 0xff;
8577 }
8578 np->vpd.model[val] = '\0';
8579
8580 val = nr64(ESPC_BD_MOD_STR_LEN);
8581 niudbg(PROBE, "SPROM: BD_MOD_STR_LEN[%llu]\n",
8582 (unsigned long long) val);
8583 if (val >= 4 * 4)
8584 return -EINVAL;
8585
8586 for (i = 0; i < val; i += 4) {
8587 u64 tmp = nr64(ESPC_NCR(14 + (i / 4)));
8588
8589 np->vpd.board_model[i + 3] = (tmp >> 0) & 0xff;
8590 np->vpd.board_model[i + 2] = (tmp >> 8) & 0xff;
8591 np->vpd.board_model[i + 1] = (tmp >> 16) & 0xff;
8592 np->vpd.board_model[i + 0] = (tmp >> 24) & 0xff;
8593 }
8594 np->vpd.board_model[val] = '\0';
8595
8596 np->vpd.mac_num =
8597 nr64(ESPC_NUM_PORTS_MACS) & ESPC_NUM_PORTS_MACS_VAL;
8598 niudbg(PROBE, "SPROM: NUM_PORTS_MACS[%d]\n",
8599 np->vpd.mac_num);
8600
8601 return 0;
8602 }
8603
8604 static int __devinit niu_get_and_validate_port(struct niu *np)
8605 {
8606 struct niu_parent *parent = np->parent;
8607
8608 if (np->port <= 1)
8609 np->flags |= NIU_FLAGS_XMAC;
8610
8611 if (!parent->num_ports) {
8612 if (parent->plat_type == PLAT_TYPE_NIU) {
8613 parent->num_ports = 2;
8614 } else {
8615 parent->num_ports = niu_pci_vpd_get_nports(np);
8616 if (!parent->num_ports) {
8617 /* Fall back to SPROM as last resort.
8618 * This will fail on most cards.
8619 */
8620 parent->num_ports = nr64(ESPC_NUM_PORTS_MACS) &
8621 ESPC_NUM_PORTS_MACS_VAL;
8622
8623 /* All of the current probing methods fail on
8624 * Maramba on-board parts.
8625 */
8626 if (!parent->num_ports)
8627 parent->num_ports = 4;
8628 }
8629 }
8630 }
8631
8632 niudbg(PROBE, "niu_get_and_validate_port: port[%d] num_ports[%d]\n",
8633 np->port, parent->num_ports);
8634 if (np->port >= parent->num_ports)
8635 return -ENODEV;
8636
8637 return 0;
8638 }
8639
8640 static int __devinit phy_record(struct niu_parent *parent,
8641 struct phy_probe_info *p,
8642 int dev_id_1, int dev_id_2, u8 phy_port,
8643 int type)
8644 {
8645 u32 id = (dev_id_1 << 16) | dev_id_2;
8646 u8 idx;
8647
8648 if (dev_id_1 < 0 || dev_id_2 < 0)
8649 return 0;
8650 if (type == PHY_TYPE_PMA_PMD || type == PHY_TYPE_PCS) {
8651 if (((id & NIU_PHY_ID_MASK) != NIU_PHY_ID_BCM8704) &&
8652 ((id & NIU_PHY_ID_MASK) != NIU_PHY_ID_MRVL88X2011) &&
8653 ((id & NIU_PHY_ID_MASK) != NIU_PHY_ID_BCM8706))
8654 return 0;
8655 } else {
8656 if ((id & NIU_PHY_ID_MASK) != NIU_PHY_ID_BCM5464R)
8657 return 0;
8658 }
8659
8660 pr_info("niu%d: Found PHY %08x type %s at phy_port %u\n",
8661 parent->index, id,
8662 (type == PHY_TYPE_PMA_PMD ?
8663 "PMA/PMD" :
8664 (type == PHY_TYPE_PCS ?
8665 "PCS" : "MII")),
8666 phy_port);
8667
8668 if (p->cur[type] >= NIU_MAX_PORTS) {
8669 printk(KERN_ERR PFX "Too many PHY ports.\n");
8670 return -EINVAL;
8671 }
8672 idx = p->cur[type];
8673 p->phy_id[type][idx] = id;
8674 p->phy_port[type][idx] = phy_port;
8675 p->cur[type] = idx + 1;
8676 return 0;
8677 }
8678
8679 static int __devinit port_has_10g(struct phy_probe_info *p, int port)
8680 {
8681 int i;
8682
8683 for (i = 0; i < p->cur[PHY_TYPE_PMA_PMD]; i++) {
8684 if (p->phy_port[PHY_TYPE_PMA_PMD][i] == port)
8685 return 1;
8686 }
8687 for (i = 0; i < p->cur[PHY_TYPE_PCS]; i++) {
8688 if (p->phy_port[PHY_TYPE_PCS][i] == port)
8689 return 1;
8690 }
8691
8692 return 0;
8693 }
8694
8695 static int __devinit count_10g_ports(struct phy_probe_info *p, int *lowest)
8696 {
8697 int port, cnt;
8698
8699 cnt = 0;
8700 *lowest = 32;
8701 for (port = 8; port < 32; port++) {
8702 if (port_has_10g(p, port)) {
8703 if (!cnt)
8704 *lowest = port;
8705 cnt++;
8706 }
8707 }
8708
8709 return cnt;
8710 }
8711
8712 static int __devinit count_1g_ports(struct phy_probe_info *p, int *lowest)
8713 {
8714 *lowest = 32;
8715 if (p->cur[PHY_TYPE_MII])
8716 *lowest = p->phy_port[PHY_TYPE_MII][0];
8717
8718 return p->cur[PHY_TYPE_MII];
8719 }
8720
8721 static void __devinit niu_n2_divide_channels(struct niu_parent *parent)
8722 {
8723 int num_ports = parent->num_ports;
8724 int i;
8725
8726 for (i = 0; i < num_ports; i++) {
8727 parent->rxchan_per_port[i] = (16 / num_ports);
8728 parent->txchan_per_port[i] = (16 / num_ports);
8729
8730 pr_info(PFX "niu%d: Port %u [%u RX chans] "
8731 "[%u TX chans]\n",
8732 parent->index, i,
8733 parent->rxchan_per_port[i],
8734 parent->txchan_per_port[i]);
8735 }
8736 }
8737
8738 static void __devinit niu_divide_channels(struct niu_parent *parent,
8739 int num_10g, int num_1g)
8740 {
8741 int num_ports = parent->num_ports;
8742 int rx_chans_per_10g, rx_chans_per_1g;
8743 int tx_chans_per_10g, tx_chans_per_1g;
8744 int i, tot_rx, tot_tx;
8745
8746 if (!num_10g || !num_1g) {
8747 rx_chans_per_10g = rx_chans_per_1g =
8748 (NIU_NUM_RXCHAN / num_ports);
8749 tx_chans_per_10g = tx_chans_per_1g =
8750 (NIU_NUM_TXCHAN / num_ports);
8751 } else {
8752 rx_chans_per_1g = NIU_NUM_RXCHAN / 8;
8753 rx_chans_per_10g = (NIU_NUM_RXCHAN -
8754 (rx_chans_per_1g * num_1g)) /
8755 num_10g;
8756
8757 tx_chans_per_1g = NIU_NUM_TXCHAN / 6;
8758 tx_chans_per_10g = (NIU_NUM_TXCHAN -
8759 (tx_chans_per_1g * num_1g)) /
8760 num_10g;
8761 }
8762
8763 tot_rx = tot_tx = 0;
8764 for (i = 0; i < num_ports; i++) {
8765 int type = phy_decode(parent->port_phy, i);
8766
8767 if (type == PORT_TYPE_10G) {
8768 parent->rxchan_per_port[i] = rx_chans_per_10g;
8769 parent->txchan_per_port[i] = tx_chans_per_10g;
8770 } else {
8771 parent->rxchan_per_port[i] = rx_chans_per_1g;
8772 parent->txchan_per_port[i] = tx_chans_per_1g;
8773 }
8774 pr_info(PFX "niu%d: Port %u [%u RX chans] "
8775 "[%u TX chans]\n",
8776 parent->index, i,
8777 parent->rxchan_per_port[i],
8778 parent->txchan_per_port[i]);
8779 tot_rx += parent->rxchan_per_port[i];
8780 tot_tx += parent->txchan_per_port[i];
8781 }
8782
8783 if (tot_rx > NIU_NUM_RXCHAN) {
8784 printk(KERN_ERR PFX "niu%d: Too many RX channels (%d), "
8785 "resetting to one per port.\n",
8786 parent->index, tot_rx);
8787 for (i = 0; i < num_ports; i++)
8788 parent->rxchan_per_port[i] = 1;
8789 }
8790 if (tot_tx > NIU_NUM_TXCHAN) {
8791 printk(KERN_ERR PFX "niu%d: Too many TX channels (%d), "
8792 "resetting to one per port.\n",
8793 parent->index, tot_tx);
8794 for (i = 0; i < num_ports; i++)
8795 parent->txchan_per_port[i] = 1;
8796 }
8797 if (tot_rx < NIU_NUM_RXCHAN || tot_tx < NIU_NUM_TXCHAN) {
8798 printk(KERN_WARNING PFX "niu%d: Driver bug, wasted channels, "
8799 "RX[%d] TX[%d]\n",
8800 parent->index, tot_rx, tot_tx);
8801 }
8802 }
8803
8804 static void __devinit niu_divide_rdc_groups(struct niu_parent *parent,
8805 int num_10g, int num_1g)
8806 {
8807 int i, num_ports = parent->num_ports;
8808 int rdc_group, rdc_groups_per_port;
8809 int rdc_channel_base;
8810
8811 rdc_group = 0;
8812 rdc_groups_per_port = NIU_NUM_RDC_TABLES / num_ports;
8813
8814 rdc_channel_base = 0;
8815
8816 for (i = 0; i < num_ports; i++) {
8817 struct niu_rdc_tables *tp = &parent->rdc_group_cfg[i];
8818 int grp, num_channels = parent->rxchan_per_port[i];
8819 int this_channel_offset;
8820
8821 tp->first_table_num = rdc_group;
8822 tp->num_tables = rdc_groups_per_port;
8823 this_channel_offset = 0;
8824 for (grp = 0; grp < tp->num_tables; grp++) {
8825 struct rdc_table *rt = &tp->tables[grp];
8826 int slot;
8827
8828 pr_info(PFX "niu%d: Port %d RDC tbl(%d) [ ",
8829 parent->index, i, tp->first_table_num + grp);
8830 for (slot = 0; slot < NIU_RDC_TABLE_SLOTS; slot++) {
8831 rt->rxdma_channel[slot] =
8832 rdc_channel_base + this_channel_offset;
8833
8834 printk("%d ", rt->rxdma_channel[slot]);
8835
8836 if (++this_channel_offset == num_channels)
8837 this_channel_offset = 0;
8838 }
8839 printk("]\n");
8840 }
8841
8842 parent->rdc_default[i] = rdc_channel_base;
8843
8844 rdc_channel_base += num_channels;
8845 rdc_group += rdc_groups_per_port;
8846 }
8847 }
8848
8849 static int __devinit fill_phy_probe_info(struct niu *np,
8850 struct niu_parent *parent,
8851 struct phy_probe_info *info)
8852 {
8853 unsigned long flags;
8854 int port, err;
8855
8856 memset(info, 0, sizeof(*info));
8857
8858 /* Port 0 to 7 are reserved for onboard Serdes, probe the rest. */
8859 niu_lock_parent(np, flags);
8860 err = 0;
8861 for (port = 8; port < 32; port++) {
8862 int dev_id_1, dev_id_2;
8863
8864 dev_id_1 = mdio_read(np, port,
8865 NIU_PMA_PMD_DEV_ADDR, MII_PHYSID1);
8866 dev_id_2 = mdio_read(np, port,
8867 NIU_PMA_PMD_DEV_ADDR, MII_PHYSID2);
8868 err = phy_record(parent, info, dev_id_1, dev_id_2, port,
8869 PHY_TYPE_PMA_PMD);
8870 if (err)
8871 break;
8872 dev_id_1 = mdio_read(np, port,
8873 NIU_PCS_DEV_ADDR, MII_PHYSID1);
8874 dev_id_2 = mdio_read(np, port,
8875 NIU_PCS_DEV_ADDR, MII_PHYSID2);
8876 err = phy_record(parent, info, dev_id_1, dev_id_2, port,
8877 PHY_TYPE_PCS);
8878 if (err)
8879 break;
8880 dev_id_1 = mii_read(np, port, MII_PHYSID1);
8881 dev_id_2 = mii_read(np, port, MII_PHYSID2);
8882 err = phy_record(parent, info, dev_id_1, dev_id_2, port,
8883 PHY_TYPE_MII);
8884 if (err)
8885 break;
8886 }
8887 niu_unlock_parent(np, flags);
8888
8889 return err;
8890 }
8891
8892 static int __devinit walk_phys(struct niu *np, struct niu_parent *parent)
8893 {
8894 struct phy_probe_info *info = &parent->phy_probe_info;
8895 int lowest_10g, lowest_1g;
8896 int num_10g, num_1g;
8897 u32 val;
8898 int err;
8899
8900 num_10g = num_1g = 0;
8901
8902 if (!strcmp(np->vpd.model, NIU_ALONSO_MDL_STR) ||
8903 !strcmp(np->vpd.model, NIU_KIMI_MDL_STR)) {
8904 num_10g = 0;
8905 num_1g = 2;
8906 parent->plat_type = PLAT_TYPE_ATCA_CP3220;
8907 parent->num_ports = 4;
8908 val = (phy_encode(PORT_TYPE_1G, 0) |
8909 phy_encode(PORT_TYPE_1G, 1) |
8910 phy_encode(PORT_TYPE_1G, 2) |
8911 phy_encode(PORT_TYPE_1G, 3));
8912 } else if (!strcmp(np->vpd.model, NIU_FOXXY_MDL_STR)) {
8913 num_10g = 2;
8914 num_1g = 0;
8915 parent->num_ports = 2;
8916 val = (phy_encode(PORT_TYPE_10G, 0) |
8917 phy_encode(PORT_TYPE_10G, 1));
8918 } else if ((np->flags & NIU_FLAGS_XCVR_SERDES) &&
8919 (parent->plat_type == PLAT_TYPE_NIU)) {
8920 /* this is the Monza case */
8921 if (np->flags & NIU_FLAGS_10G) {
8922 val = (phy_encode(PORT_TYPE_10G, 0) |
8923 phy_encode(PORT_TYPE_10G, 1));
8924 } else {
8925 val = (phy_encode(PORT_TYPE_1G, 0) |
8926 phy_encode(PORT_TYPE_1G, 1));
8927 }
8928 } else {
8929 err = fill_phy_probe_info(np, parent, info);
8930 if (err)
8931 return err;
8932
8933 num_10g = count_10g_ports(info, &lowest_10g);
8934 num_1g = count_1g_ports(info, &lowest_1g);
8935
8936 switch ((num_10g << 4) | num_1g) {
8937 case 0x24:
8938 if (lowest_1g == 10)
8939 parent->plat_type = PLAT_TYPE_VF_P0;
8940 else if (lowest_1g == 26)
8941 parent->plat_type = PLAT_TYPE_VF_P1;
8942 else
8943 goto unknown_vg_1g_port;
8944
8945 /* fallthru */
8946 case 0x22:
8947 val = (phy_encode(PORT_TYPE_10G, 0) |
8948 phy_encode(PORT_TYPE_10G, 1) |
8949 phy_encode(PORT_TYPE_1G, 2) |
8950 phy_encode(PORT_TYPE_1G, 3));
8951 break;
8952
8953 case 0x20:
8954 val = (phy_encode(PORT_TYPE_10G, 0) |
8955 phy_encode(PORT_TYPE_10G, 1));
8956 break;
8957
8958 case 0x10:
8959 val = phy_encode(PORT_TYPE_10G, np->port);
8960 break;
8961
8962 case 0x14:
8963 if (lowest_1g == 10)
8964 parent->plat_type = PLAT_TYPE_VF_P0;
8965 else if (lowest_1g == 26)
8966 parent->plat_type = PLAT_TYPE_VF_P1;
8967 else
8968 goto unknown_vg_1g_port;
8969
8970 /* fallthru */
8971 case 0x13:
8972 if ((lowest_10g & 0x7) == 0)
8973 val = (phy_encode(PORT_TYPE_10G, 0) |
8974 phy_encode(PORT_TYPE_1G, 1) |
8975 phy_encode(PORT_TYPE_1G, 2) |
8976 phy_encode(PORT_TYPE_1G, 3));
8977 else
8978 val = (phy_encode(PORT_TYPE_1G, 0) |
8979 phy_encode(PORT_TYPE_10G, 1) |
8980 phy_encode(PORT_TYPE_1G, 2) |
8981 phy_encode(PORT_TYPE_1G, 3));
8982 break;
8983
8984 case 0x04:
8985 if (lowest_1g == 10)
8986 parent->plat_type = PLAT_TYPE_VF_P0;
8987 else if (lowest_1g == 26)
8988 parent->plat_type = PLAT_TYPE_VF_P1;
8989 else
8990 goto unknown_vg_1g_port;
8991
8992 val = (phy_encode(PORT_TYPE_1G, 0) |
8993 phy_encode(PORT_TYPE_1G, 1) |
8994 phy_encode(PORT_TYPE_1G, 2) |
8995 phy_encode(PORT_TYPE_1G, 3));
8996 break;
8997
8998 default:
8999 printk(KERN_ERR PFX "Unsupported port config "
9000 "10G[%d] 1G[%d]\n",
9001 num_10g, num_1g);
9002 return -EINVAL;
9003 }
9004 }
9005
9006 parent->port_phy = val;
9007
9008 if (parent->plat_type == PLAT_TYPE_NIU)
9009 niu_n2_divide_channels(parent);
9010 else
9011 niu_divide_channels(parent, num_10g, num_1g);
9012
9013 niu_divide_rdc_groups(parent, num_10g, num_1g);
9014
9015 return 0;
9016
9017 unknown_vg_1g_port:
9018 printk(KERN_ERR PFX "Cannot identify platform type, 1gport=%d\n",
9019 lowest_1g);
9020 return -EINVAL;
9021 }
9022
9023 static int __devinit niu_probe_ports(struct niu *np)
9024 {
9025 struct niu_parent *parent = np->parent;
9026 int err, i;
9027
9028 niudbg(PROBE, "niu_probe_ports(): port_phy[%08x]\n",
9029 parent->port_phy);
9030
9031 if (parent->port_phy == PORT_PHY_UNKNOWN) {
9032 err = walk_phys(np, parent);
9033 if (err)
9034 return err;
9035
9036 niu_set_ldg_timer_res(np, 2);
9037 for (i = 0; i <= LDN_MAX; i++)
9038 niu_ldn_irq_enable(np, i, 0);
9039 }
9040
9041 if (parent->port_phy == PORT_PHY_INVALID)
9042 return -EINVAL;
9043
9044 return 0;
9045 }
9046
9047 static int __devinit niu_classifier_swstate_init(struct niu *np)
9048 {
9049 struct niu_classifier *cp = &np->clas;
9050
9051 niudbg(PROBE, "niu_classifier_swstate_init: num_tcam(%d)\n",
9052 np->parent->tcam_num_entries);
9053
9054 cp->tcam_top = (u16) np->port;
9055 cp->tcam_sz = np->parent->tcam_num_entries / np->parent->num_ports;
9056 cp->h1_init = 0xffffffff;
9057 cp->h2_init = 0xffff;
9058
9059 return fflp_early_init(np);
9060 }
9061
9062 static void __devinit niu_link_config_init(struct niu *np)
9063 {
9064 struct niu_link_config *lp = &np->link_config;
9065
9066 lp->advertising = (ADVERTISED_10baseT_Half |
9067 ADVERTISED_10baseT_Full |
9068 ADVERTISED_100baseT_Half |
9069 ADVERTISED_100baseT_Full |
9070 ADVERTISED_1000baseT_Half |
9071 ADVERTISED_1000baseT_Full |
9072 ADVERTISED_10000baseT_Full |
9073 ADVERTISED_Autoneg);
9074 lp->speed = lp->active_speed = SPEED_INVALID;
9075 lp->duplex = DUPLEX_FULL;
9076 lp->active_duplex = DUPLEX_INVALID;
9077 lp->autoneg = 1;
9078 #if 0
9079 lp->loopback_mode = LOOPBACK_MAC;
9080 lp->active_speed = SPEED_10000;
9081 lp->active_duplex = DUPLEX_FULL;
9082 #else
9083 lp->loopback_mode = LOOPBACK_DISABLED;
9084 #endif
9085 }
9086
9087 static int __devinit niu_init_mac_ipp_pcs_base(struct niu *np)
9088 {
9089 switch (np->port) {
9090 case 0:
9091 np->mac_regs = np->regs + XMAC_PORT0_OFF;
9092 np->ipp_off = 0x00000;
9093 np->pcs_off = 0x04000;
9094 np->xpcs_off = 0x02000;
9095 break;
9096
9097 case 1:
9098 np->mac_regs = np->regs + XMAC_PORT1_OFF;
9099 np->ipp_off = 0x08000;
9100 np->pcs_off = 0x0a000;
9101 np->xpcs_off = 0x08000;
9102 break;
9103
9104 case 2:
9105 np->mac_regs = np->regs + BMAC_PORT2_OFF;
9106 np->ipp_off = 0x04000;
9107 np->pcs_off = 0x0e000;
9108 np->xpcs_off = ~0UL;
9109 break;
9110
9111 case 3:
9112 np->mac_regs = np->regs + BMAC_PORT3_OFF;
9113 np->ipp_off = 0x0c000;
9114 np->pcs_off = 0x12000;
9115 np->xpcs_off = ~0UL;
9116 break;
9117
9118 default:
9119 dev_err(np->device, PFX "Port %u is invalid, cannot "
9120 "compute MAC block offset.\n", np->port);
9121 return -EINVAL;
9122 }
9123
9124 return 0;
9125 }
9126
9127 static void __devinit niu_try_msix(struct niu *np, u8 *ldg_num_map)
9128 {
9129 struct msix_entry msi_vec[NIU_NUM_LDG];
9130 struct niu_parent *parent = np->parent;
9131 struct pci_dev *pdev = np->pdev;
9132 int i, num_irqs, err;
9133 u8 first_ldg;
9134
9135 first_ldg = (NIU_NUM_LDG / parent->num_ports) * np->port;
9136 for (i = 0; i < (NIU_NUM_LDG / parent->num_ports); i++)
9137 ldg_num_map[i] = first_ldg + i;
9138
9139 num_irqs = (parent->rxchan_per_port[np->port] +
9140 parent->txchan_per_port[np->port] +
9141 (np->port == 0 ? 3 : 1));
9142 BUG_ON(num_irqs > (NIU_NUM_LDG / parent->num_ports));
9143
9144 retry:
9145 for (i = 0; i < num_irqs; i++) {
9146 msi_vec[i].vector = 0;
9147 msi_vec[i].entry = i;
9148 }
9149
9150 err = pci_enable_msix(pdev, msi_vec, num_irqs);
9151 if (err < 0) {
9152 np->flags &= ~NIU_FLAGS_MSIX;
9153 return;
9154 }
9155 if (err > 0) {
9156 num_irqs = err;
9157 goto retry;
9158 }
9159
9160 np->flags |= NIU_FLAGS_MSIX;
9161 for (i = 0; i < num_irqs; i++)
9162 np->ldg[i].irq = msi_vec[i].vector;
9163 np->num_ldg = num_irqs;
9164 }
9165
9166 static int __devinit niu_n2_irq_init(struct niu *np, u8 *ldg_num_map)
9167 {
9168 #ifdef CONFIG_SPARC64
9169 struct of_device *op = np->op;
9170 const u32 *int_prop;
9171 int i;
9172
9173 int_prop = of_get_property(op->node, "interrupts", NULL);
9174 if (!int_prop)
9175 return -ENODEV;
9176
9177 for (i = 0; i < op->num_irqs; i++) {
9178 ldg_num_map[i] = int_prop[i];
9179 np->ldg[i].irq = op->irqs[i];
9180 }
9181
9182 np->num_ldg = op->num_irqs;
9183
9184 return 0;
9185 #else
9186 return -EINVAL;
9187 #endif
9188 }
9189
9190 static int __devinit niu_ldg_init(struct niu *np)
9191 {
9192 struct niu_parent *parent = np->parent;
9193 u8 ldg_num_map[NIU_NUM_LDG];
9194 int first_chan, num_chan;
9195 int i, err, ldg_rotor;
9196 u8 port;
9197
9198 np->num_ldg = 1;
9199 np->ldg[0].irq = np->dev->irq;
9200 if (parent->plat_type == PLAT_TYPE_NIU) {
9201 err = niu_n2_irq_init(np, ldg_num_map);
9202 if (err)
9203 return err;
9204 } else
9205 niu_try_msix(np, ldg_num_map);
9206
9207 port = np->port;
9208 for (i = 0; i < np->num_ldg; i++) {
9209 struct niu_ldg *lp = &np->ldg[i];
9210
9211 netif_napi_add(np->dev, &lp->napi, niu_poll, 64);
9212
9213 lp->np = np;
9214 lp->ldg_num = ldg_num_map[i];
9215 lp->timer = 2; /* XXX */
9216
9217 /* On N2 NIU the firmware has setup the SID mappings so they go
9218 * to the correct values that will route the LDG to the proper
9219 * interrupt in the NCU interrupt table.
9220 */
9221 if (np->parent->plat_type != PLAT_TYPE_NIU) {
9222 err = niu_set_ldg_sid(np, lp->ldg_num, port, i);
9223 if (err)
9224 return err;
9225 }
9226 }
9227
9228 /* We adopt the LDG assignment ordering used by the N2 NIU
9229 * 'interrupt' properties because that simplifies a lot of
9230 * things. This ordering is:
9231 *
9232 * MAC
9233 * MIF (if port zero)
9234 * SYSERR (if port zero)
9235 * RX channels
9236 * TX channels
9237 */
9238
9239 ldg_rotor = 0;
9240
9241 err = niu_ldg_assign_ldn(np, parent, ldg_num_map[ldg_rotor],
9242 LDN_MAC(port));
9243 if (err)
9244 return err;
9245
9246 ldg_rotor++;
9247 if (ldg_rotor == np->num_ldg)
9248 ldg_rotor = 0;
9249
9250 if (port == 0) {
9251 err = niu_ldg_assign_ldn(np, parent,
9252 ldg_num_map[ldg_rotor],
9253 LDN_MIF);
9254 if (err)
9255 return err;
9256
9257 ldg_rotor++;
9258 if (ldg_rotor == np->num_ldg)
9259 ldg_rotor = 0;
9260
9261 err = niu_ldg_assign_ldn(np, parent,
9262 ldg_num_map[ldg_rotor],
9263 LDN_DEVICE_ERROR);
9264 if (err)
9265 return err;
9266
9267 ldg_rotor++;
9268 if (ldg_rotor == np->num_ldg)
9269 ldg_rotor = 0;
9270
9271 }
9272
9273 first_chan = 0;
9274 for (i = 0; i < port; i++)
9275 first_chan += parent->rxchan_per_port[port];
9276 num_chan = parent->rxchan_per_port[port];
9277
9278 for (i = first_chan; i < (first_chan + num_chan); i++) {
9279 err = niu_ldg_assign_ldn(np, parent,
9280 ldg_num_map[ldg_rotor],
9281 LDN_RXDMA(i));
9282 if (err)
9283 return err;
9284 ldg_rotor++;
9285 if (ldg_rotor == np->num_ldg)
9286 ldg_rotor = 0;
9287 }
9288
9289 first_chan = 0;
9290 for (i = 0; i < port; i++)
9291 first_chan += parent->txchan_per_port[port];
9292 num_chan = parent->txchan_per_port[port];
9293 for (i = first_chan; i < (first_chan + num_chan); i++) {
9294 err = niu_ldg_assign_ldn(np, parent,
9295 ldg_num_map[ldg_rotor],
9296 LDN_TXDMA(i));
9297 if (err)
9298 return err;
9299 ldg_rotor++;
9300 if (ldg_rotor == np->num_ldg)
9301 ldg_rotor = 0;
9302 }
9303
9304 return 0;
9305 }
9306
9307 static void __devexit niu_ldg_free(struct niu *np)
9308 {
9309 if (np->flags & NIU_FLAGS_MSIX)
9310 pci_disable_msix(np->pdev);
9311 }
9312
9313 static int __devinit niu_get_of_props(struct niu *np)
9314 {
9315 #ifdef CONFIG_SPARC64
9316 struct net_device *dev = np->dev;
9317 struct device_node *dp;
9318 const char *phy_type;
9319 const u8 *mac_addr;
9320 const char *model;
9321 int prop_len;
9322
9323 if (np->parent->plat_type == PLAT_TYPE_NIU)
9324 dp = np->op->node;
9325 else
9326 dp = pci_device_to_OF_node(np->pdev);
9327
9328 phy_type = of_get_property(dp, "phy-type", &prop_len);
9329 if (!phy_type) {
9330 dev_err(np->device, PFX "%s: OF node lacks "
9331 "phy-type property\n",
9332 dp->full_name);
9333 return -EINVAL;
9334 }
9335
9336 if (!strcmp(phy_type, "none"))
9337 return -ENODEV;
9338
9339 strcpy(np->vpd.phy_type, phy_type);
9340
9341 if (niu_phy_type_prop_decode(np, np->vpd.phy_type)) {
9342 dev_err(np->device, PFX "%s: Illegal phy string [%s].\n",
9343 dp->full_name, np->vpd.phy_type);
9344 return -EINVAL;
9345 }
9346
9347 mac_addr = of_get_property(dp, "local-mac-address", &prop_len);
9348 if (!mac_addr) {
9349 dev_err(np->device, PFX "%s: OF node lacks "
9350 "local-mac-address property\n",
9351 dp->full_name);
9352 return -EINVAL;
9353 }
9354 if (prop_len != dev->addr_len) {
9355 dev_err(np->device, PFX "%s: OF MAC address prop len (%d) "
9356 "is wrong.\n",
9357 dp->full_name, prop_len);
9358 }
9359 memcpy(dev->perm_addr, mac_addr, dev->addr_len);
9360 if (!is_valid_ether_addr(&dev->perm_addr[0])) {
9361 int i;
9362
9363 dev_err(np->device, PFX "%s: OF MAC address is invalid\n",
9364 dp->full_name);
9365 dev_err(np->device, PFX "%s: [ \n",
9366 dp->full_name);
9367 for (i = 0; i < 6; i++)
9368 printk("%02x ", dev->perm_addr[i]);
9369 printk("]\n");
9370 return -EINVAL;
9371 }
9372
9373 memcpy(dev->dev_addr, dev->perm_addr, dev->addr_len);
9374
9375 model = of_get_property(dp, "model", &prop_len);
9376
9377 if (model)
9378 strcpy(np->vpd.model, model);
9379
9380 if (of_find_property(dp, "hot-swappable-phy", &prop_len)) {
9381 np->flags |= (NIU_FLAGS_10G | NIU_FLAGS_FIBER |
9382 NIU_FLAGS_HOTPLUG_PHY);
9383 }
9384
9385 return 0;
9386 #else
9387 return -EINVAL;
9388 #endif
9389 }
9390
9391 static int __devinit niu_get_invariants(struct niu *np)
9392 {
9393 int err, have_props;
9394 u32 offset;
9395
9396 err = niu_get_of_props(np);
9397 if (err == -ENODEV)
9398 return err;
9399
9400 have_props = !err;
9401
9402 err = niu_init_mac_ipp_pcs_base(np);
9403 if (err)
9404 return err;
9405
9406 if (have_props) {
9407 err = niu_get_and_validate_port(np);
9408 if (err)
9409 return err;
9410
9411 } else {
9412 if (np->parent->plat_type == PLAT_TYPE_NIU)
9413 return -EINVAL;
9414
9415 nw64(ESPC_PIO_EN, ESPC_PIO_EN_ENABLE);
9416 offset = niu_pci_vpd_offset(np);
9417 niudbg(PROBE, "niu_get_invariants: VPD offset [%08x]\n",
9418 offset);
9419 if (offset)
9420 niu_pci_vpd_fetch(np, offset);
9421 nw64(ESPC_PIO_EN, 0);
9422
9423 if (np->flags & NIU_FLAGS_VPD_VALID) {
9424 niu_pci_vpd_validate(np);
9425 err = niu_get_and_validate_port(np);
9426 if (err)
9427 return err;
9428 }
9429
9430 if (!(np->flags & NIU_FLAGS_VPD_VALID)) {
9431 err = niu_get_and_validate_port(np);
9432 if (err)
9433 return err;
9434 err = niu_pci_probe_sprom(np);
9435 if (err)
9436 return err;
9437 }
9438 }
9439
9440 err = niu_probe_ports(np);
9441 if (err)
9442 return err;
9443
9444 niu_ldg_init(np);
9445
9446 niu_classifier_swstate_init(np);
9447 niu_link_config_init(np);
9448
9449 err = niu_determine_phy_disposition(np);
9450 if (!err)
9451 err = niu_init_link(np);
9452
9453 return err;
9454 }
9455
9456 static LIST_HEAD(niu_parent_list);
9457 static DEFINE_MUTEX(niu_parent_lock);
9458 static int niu_parent_index;
9459
9460 static ssize_t show_port_phy(struct device *dev,
9461 struct device_attribute *attr, char *buf)
9462 {
9463 struct platform_device *plat_dev = to_platform_device(dev);
9464 struct niu_parent *p = plat_dev->dev.platform_data;
9465 u32 port_phy = p->port_phy;
9466 char *orig_buf = buf;
9467 int i;
9468
9469 if (port_phy == PORT_PHY_UNKNOWN ||
9470 port_phy == PORT_PHY_INVALID)
9471 return 0;
9472
9473 for (i = 0; i < p->num_ports; i++) {
9474 const char *type_str;
9475 int type;
9476
9477 type = phy_decode(port_phy, i);
9478 if (type == PORT_TYPE_10G)
9479 type_str = "10G";
9480 else
9481 type_str = "1G";
9482 buf += sprintf(buf,
9483 (i == 0) ? "%s" : " %s",
9484 type_str);
9485 }
9486 buf += sprintf(buf, "\n");
9487 return buf - orig_buf;
9488 }
9489
9490 static ssize_t show_plat_type(struct device *dev,
9491 struct device_attribute *attr, char *buf)
9492 {
9493 struct platform_device *plat_dev = to_platform_device(dev);
9494 struct niu_parent *p = plat_dev->dev.platform_data;
9495 const char *type_str;
9496
9497 switch (p->plat_type) {
9498 case PLAT_TYPE_ATLAS:
9499 type_str = "atlas";
9500 break;
9501 case PLAT_TYPE_NIU:
9502 type_str = "niu";
9503 break;
9504 case PLAT_TYPE_VF_P0:
9505 type_str = "vf_p0";
9506 break;
9507 case PLAT_TYPE_VF_P1:
9508 type_str = "vf_p1";
9509 break;
9510 default:
9511 type_str = "unknown";
9512 break;
9513 }
9514
9515 return sprintf(buf, "%s\n", type_str);
9516 }
9517
9518 static ssize_t __show_chan_per_port(struct device *dev,
9519 struct device_attribute *attr, char *buf,
9520 int rx)
9521 {
9522 struct platform_device *plat_dev = to_platform_device(dev);
9523 struct niu_parent *p = plat_dev->dev.platform_data;
9524 char *orig_buf = buf;
9525 u8 *arr;
9526 int i;
9527
9528 arr = (rx ? p->rxchan_per_port : p->txchan_per_port);
9529
9530 for (i = 0; i < p->num_ports; i++) {
9531 buf += sprintf(buf,
9532 (i == 0) ? "%d" : " %d",
9533 arr[i]);
9534 }
9535 buf += sprintf(buf, "\n");
9536
9537 return buf - orig_buf;
9538 }
9539
9540 static ssize_t show_rxchan_per_port(struct device *dev,
9541 struct device_attribute *attr, char *buf)
9542 {
9543 return __show_chan_per_port(dev, attr, buf, 1);
9544 }
9545
9546 static ssize_t show_txchan_per_port(struct device *dev,
9547 struct device_attribute *attr, char *buf)
9548 {
9549 return __show_chan_per_port(dev, attr, buf, 1);
9550 }
9551
9552 static ssize_t show_num_ports(struct device *dev,
9553 struct device_attribute *attr, char *buf)
9554 {
9555 struct platform_device *plat_dev = to_platform_device(dev);
9556 struct niu_parent *p = plat_dev->dev.platform_data;
9557
9558 return sprintf(buf, "%d\n", p->num_ports);
9559 }
9560
9561 static struct device_attribute niu_parent_attributes[] = {
9562 __ATTR(port_phy, S_IRUGO, show_port_phy, NULL),
9563 __ATTR(plat_type, S_IRUGO, show_plat_type, NULL),
9564 __ATTR(rxchan_per_port, S_IRUGO, show_rxchan_per_port, NULL),
9565 __ATTR(txchan_per_port, S_IRUGO, show_txchan_per_port, NULL),
9566 __ATTR(num_ports, S_IRUGO, show_num_ports, NULL),
9567 {}
9568 };
9569
9570 static struct niu_parent * __devinit niu_new_parent(struct niu *np,
9571 union niu_parent_id *id,
9572 u8 ptype)
9573 {
9574 struct platform_device *plat_dev;
9575 struct niu_parent *p;
9576 int i;
9577
9578 niudbg(PROBE, "niu_new_parent: Creating new parent.\n");
9579
9580 plat_dev = platform_device_register_simple("niu", niu_parent_index,
9581 NULL, 0);
9582 if (IS_ERR(plat_dev))
9583 return NULL;
9584
9585 for (i = 0; attr_name(niu_parent_attributes[i]); i++) {
9586 int err = device_create_file(&plat_dev->dev,
9587 &niu_parent_attributes[i]);
9588 if (err)
9589 goto fail_unregister;
9590 }
9591
9592 p = kzalloc(sizeof(*p), GFP_KERNEL);
9593 if (!p)
9594 goto fail_unregister;
9595
9596 p->index = niu_parent_index++;
9597
9598 plat_dev->dev.platform_data = p;
9599 p->plat_dev = plat_dev;
9600
9601 memcpy(&p->id, id, sizeof(*id));
9602 p->plat_type = ptype;
9603 INIT_LIST_HEAD(&p->list);
9604 atomic_set(&p->refcnt, 0);
9605 list_add(&p->list, &niu_parent_list);
9606 spin_lock_init(&p->lock);
9607
9608 p->rxdma_clock_divider = 7500;
9609
9610 p->tcam_num_entries = NIU_PCI_TCAM_ENTRIES;
9611 if (p->plat_type == PLAT_TYPE_NIU)
9612 p->tcam_num_entries = NIU_NONPCI_TCAM_ENTRIES;
9613
9614 for (i = CLASS_CODE_USER_PROG1; i <= CLASS_CODE_SCTP_IPV6; i++) {
9615 int index = i - CLASS_CODE_USER_PROG1;
9616
9617 p->tcam_key[index] = TCAM_KEY_TSEL;
9618 p->flow_key[index] = (FLOW_KEY_IPSA |
9619 FLOW_KEY_IPDA |
9620 FLOW_KEY_PROTO |
9621 (FLOW_KEY_L4_BYTE12 <<
9622 FLOW_KEY_L4_0_SHIFT) |
9623 (FLOW_KEY_L4_BYTE12 <<
9624 FLOW_KEY_L4_1_SHIFT));
9625 }
9626
9627 for (i = 0; i < LDN_MAX + 1; i++)
9628 p->ldg_map[i] = LDG_INVALID;
9629
9630 return p;
9631
9632 fail_unregister:
9633 platform_device_unregister(plat_dev);
9634 return NULL;
9635 }
9636
9637 static struct niu_parent * __devinit niu_get_parent(struct niu *np,
9638 union niu_parent_id *id,
9639 u8 ptype)
9640 {
9641 struct niu_parent *p, *tmp;
9642 int port = np->port;
9643
9644 niudbg(PROBE, "niu_get_parent: platform_type[%u] port[%u]\n",
9645 ptype, port);
9646
9647 mutex_lock(&niu_parent_lock);
9648 p = NULL;
9649 list_for_each_entry(tmp, &niu_parent_list, list) {
9650 if (!memcmp(id, &tmp->id, sizeof(*id))) {
9651 p = tmp;
9652 break;
9653 }
9654 }
9655 if (!p)
9656 p = niu_new_parent(np, id, ptype);
9657
9658 if (p) {
9659 char port_name[6];
9660 int err;
9661
9662 sprintf(port_name, "port%d", port);
9663 err = sysfs_create_link(&p->plat_dev->dev.kobj,
9664 &np->device->kobj,
9665 port_name);
9666 if (!err) {
9667 p->ports[port] = np;
9668 atomic_inc(&p->refcnt);
9669 }
9670 }
9671 mutex_unlock(&niu_parent_lock);
9672
9673 return p;
9674 }
9675
9676 static void niu_put_parent(struct niu *np)
9677 {
9678 struct niu_parent *p = np->parent;
9679 u8 port = np->port;
9680 char port_name[6];
9681
9682 BUG_ON(!p || p->ports[port] != np);
9683
9684 niudbg(PROBE, "niu_put_parent: port[%u]\n", port);
9685
9686 sprintf(port_name, "port%d", port);
9687
9688 mutex_lock(&niu_parent_lock);
9689
9690 sysfs_remove_link(&p->plat_dev->dev.kobj, port_name);
9691
9692 p->ports[port] = NULL;
9693 np->parent = NULL;
9694
9695 if (atomic_dec_and_test(&p->refcnt)) {
9696 list_del(&p->list);
9697 platform_device_unregister(p->plat_dev);
9698 }
9699
9700 mutex_unlock(&niu_parent_lock);
9701 }
9702
9703 static void *niu_pci_alloc_coherent(struct device *dev, size_t size,
9704 u64 *handle, gfp_t flag)
9705 {
9706 dma_addr_t dh;
9707 void *ret;
9708
9709 ret = dma_alloc_coherent(dev, size, &dh, flag);
9710 if (ret)
9711 *handle = dh;
9712 return ret;
9713 }
9714
9715 static void niu_pci_free_coherent(struct device *dev, size_t size,
9716 void *cpu_addr, u64 handle)
9717 {
9718 dma_free_coherent(dev, size, cpu_addr, handle);
9719 }
9720
9721 static u64 niu_pci_map_page(struct device *dev, struct page *page,
9722 unsigned long offset, size_t size,
9723 enum dma_data_direction direction)
9724 {
9725 return dma_map_page(dev, page, offset, size, direction);
9726 }
9727
9728 static void niu_pci_unmap_page(struct device *dev, u64 dma_address,
9729 size_t size, enum dma_data_direction direction)
9730 {
9731 dma_unmap_page(dev, dma_address, size, direction);
9732 }
9733
9734 static u64 niu_pci_map_single(struct device *dev, void *cpu_addr,
9735 size_t size,
9736 enum dma_data_direction direction)
9737 {
9738 return dma_map_single(dev, cpu_addr, size, direction);
9739 }
9740
9741 static void niu_pci_unmap_single(struct device *dev, u64 dma_address,
9742 size_t size,
9743 enum dma_data_direction direction)
9744 {
9745 dma_unmap_single(dev, dma_address, size, direction);
9746 }
9747
9748 static const struct niu_ops niu_pci_ops = {
9749 .alloc_coherent = niu_pci_alloc_coherent,
9750 .free_coherent = niu_pci_free_coherent,
9751 .map_page = niu_pci_map_page,
9752 .unmap_page = niu_pci_unmap_page,
9753 .map_single = niu_pci_map_single,
9754 .unmap_single = niu_pci_unmap_single,
9755 };
9756
9757 static void __devinit niu_driver_version(void)
9758 {
9759 static int niu_version_printed;
9760
9761 if (niu_version_printed++ == 0)
9762 pr_info("%s", version);
9763 }
9764
9765 static struct net_device * __devinit niu_alloc_and_init(
9766 struct device *gen_dev, struct pci_dev *pdev,
9767 struct of_device *op, const struct niu_ops *ops,
9768 u8 port)
9769 {
9770 struct net_device *dev;
9771 struct niu *np;
9772
9773 dev = alloc_etherdev_mq(sizeof(struct niu), NIU_NUM_TXCHAN);
9774 if (!dev) {
9775 dev_err(gen_dev, PFX "Etherdev alloc failed, aborting.\n");
9776 return NULL;
9777 }
9778
9779 SET_NETDEV_DEV(dev, gen_dev);
9780
9781 np = netdev_priv(dev);
9782 np->dev = dev;
9783 np->pdev = pdev;
9784 np->op = op;
9785 np->device = gen_dev;
9786 np->ops = ops;
9787
9788 np->msg_enable = niu_debug;
9789
9790 spin_lock_init(&np->lock);
9791 INIT_WORK(&np->reset_task, niu_reset_task);
9792
9793 np->port = port;
9794
9795 return dev;
9796 }
9797
9798 static const struct net_device_ops niu_netdev_ops = {
9799 .ndo_open = niu_open,
9800 .ndo_stop = niu_close,
9801 .ndo_start_xmit = niu_start_xmit,
9802 .ndo_get_stats = niu_get_stats,
9803 .ndo_set_multicast_list = niu_set_rx_mode,
9804 .ndo_validate_addr = eth_validate_addr,
9805 .ndo_set_mac_address = niu_set_mac_addr,
9806 .ndo_do_ioctl = niu_ioctl,
9807 .ndo_tx_timeout = niu_tx_timeout,
9808 .ndo_change_mtu = niu_change_mtu,
9809 };
9810
9811 static void __devinit niu_assign_netdev_ops(struct net_device *dev)
9812 {
9813 dev->netdev_ops = &niu_netdev_ops;
9814 dev->ethtool_ops = &niu_ethtool_ops;
9815 dev->watchdog_timeo = NIU_TX_TIMEOUT;
9816 }
9817
9818 static void __devinit niu_device_announce(struct niu *np)
9819 {
9820 struct net_device *dev = np->dev;
9821
9822 pr_info("%s: NIU Ethernet %pM\n", dev->name, dev->dev_addr);
9823
9824 if (np->parent->plat_type == PLAT_TYPE_ATCA_CP3220) {
9825 pr_info("%s: Port type[%s] mode[%s:%s] XCVR[%s] phy[%s]\n",
9826 dev->name,
9827 (np->flags & NIU_FLAGS_XMAC ? "XMAC" : "BMAC"),
9828 (np->flags & NIU_FLAGS_10G ? "10G" : "1G"),
9829 (np->flags & NIU_FLAGS_FIBER ? "RGMII FIBER" : "SERDES"),
9830 (np->mac_xcvr == MAC_XCVR_MII ? "MII" :
9831 (np->mac_xcvr == MAC_XCVR_PCS ? "PCS" : "XPCS")),
9832 np->vpd.phy_type);
9833 } else {
9834 pr_info("%s: Port type[%s] mode[%s:%s] XCVR[%s] phy[%s]\n",
9835 dev->name,
9836 (np->flags & NIU_FLAGS_XMAC ? "XMAC" : "BMAC"),
9837 (np->flags & NIU_FLAGS_10G ? "10G" : "1G"),
9838 (np->flags & NIU_FLAGS_FIBER ? "FIBER" :
9839 (np->flags & NIU_FLAGS_XCVR_SERDES ? "SERDES" :
9840 "COPPER")),
9841 (np->mac_xcvr == MAC_XCVR_MII ? "MII" :
9842 (np->mac_xcvr == MAC_XCVR_PCS ? "PCS" : "XPCS")),
9843 np->vpd.phy_type);
9844 }
9845 }
9846
9847 static int __devinit niu_pci_init_one(struct pci_dev *pdev,
9848 const struct pci_device_id *ent)
9849 {
9850 union niu_parent_id parent_id;
9851 struct net_device *dev;
9852 struct niu *np;
9853 int err, pos;
9854 u64 dma_mask;
9855 u16 val16;
9856
9857 niu_driver_version();
9858
9859 err = pci_enable_device(pdev);
9860 if (err) {
9861 dev_err(&pdev->dev, PFX "Cannot enable PCI device, "
9862 "aborting.\n");
9863 return err;
9864 }
9865
9866 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM) ||
9867 !(pci_resource_flags(pdev, 2) & IORESOURCE_MEM)) {
9868 dev_err(&pdev->dev, PFX "Cannot find proper PCI device "
9869 "base addresses, aborting.\n");
9870 err = -ENODEV;
9871 goto err_out_disable_pdev;
9872 }
9873
9874 err = pci_request_regions(pdev, DRV_MODULE_NAME);
9875 if (err) {
9876 dev_err(&pdev->dev, PFX "Cannot obtain PCI resources, "
9877 "aborting.\n");
9878 goto err_out_disable_pdev;
9879 }
9880
9881 pos = pci_find_capability(pdev, PCI_CAP_ID_EXP);
9882 if (pos <= 0) {
9883 dev_err(&pdev->dev, PFX "Cannot find PCI Express capability, "
9884 "aborting.\n");
9885 goto err_out_free_res;
9886 }
9887
9888 dev = niu_alloc_and_init(&pdev->dev, pdev, NULL,
9889 &niu_pci_ops, PCI_FUNC(pdev->devfn));
9890 if (!dev) {
9891 err = -ENOMEM;
9892 goto err_out_free_res;
9893 }
9894 np = netdev_priv(dev);
9895
9896 memset(&parent_id, 0, sizeof(parent_id));
9897 parent_id.pci.domain = pci_domain_nr(pdev->bus);
9898 parent_id.pci.bus = pdev->bus->number;
9899 parent_id.pci.device = PCI_SLOT(pdev->devfn);
9900
9901 np->parent = niu_get_parent(np, &parent_id,
9902 PLAT_TYPE_ATLAS);
9903 if (!np->parent) {
9904 err = -ENOMEM;
9905 goto err_out_free_dev;
9906 }
9907
9908 pci_read_config_word(pdev, pos + PCI_EXP_DEVCTL, &val16);
9909 val16 &= ~PCI_EXP_DEVCTL_NOSNOOP_EN;
9910 val16 |= (PCI_EXP_DEVCTL_CERE |
9911 PCI_EXP_DEVCTL_NFERE |
9912 PCI_EXP_DEVCTL_FERE |
9913 PCI_EXP_DEVCTL_URRE |
9914 PCI_EXP_DEVCTL_RELAX_EN);
9915 pci_write_config_word(pdev, pos + PCI_EXP_DEVCTL, val16);
9916
9917 dma_mask = DMA_BIT_MASK(44);
9918 err = pci_set_dma_mask(pdev, dma_mask);
9919 if (!err) {
9920 dev->features |= NETIF_F_HIGHDMA;
9921 err = pci_set_consistent_dma_mask(pdev, dma_mask);
9922 if (err) {
9923 dev_err(&pdev->dev, PFX "Unable to obtain 44 bit "
9924 "DMA for consistent allocations, "
9925 "aborting.\n");
9926 goto err_out_release_parent;
9927 }
9928 }
9929 if (err || dma_mask == DMA_BIT_MASK(32)) {
9930 err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
9931 if (err) {
9932 dev_err(&pdev->dev, PFX "No usable DMA configuration, "
9933 "aborting.\n");
9934 goto err_out_release_parent;
9935 }
9936 }
9937
9938 dev->features |= (NETIF_F_SG | NETIF_F_HW_CSUM);
9939
9940 np->regs = pci_ioremap_bar(pdev, 0);
9941 if (!np->regs) {
9942 dev_err(&pdev->dev, PFX "Cannot map device registers, "
9943 "aborting.\n");
9944 err = -ENOMEM;
9945 goto err_out_release_parent;
9946 }
9947
9948 pci_set_master(pdev);
9949 pci_save_state(pdev);
9950
9951 dev->irq = pdev->irq;
9952
9953 niu_assign_netdev_ops(dev);
9954
9955 err = niu_get_invariants(np);
9956 if (err) {
9957 if (err != -ENODEV)
9958 dev_err(&pdev->dev, PFX "Problem fetching invariants "
9959 "of chip, aborting.\n");
9960 goto err_out_iounmap;
9961 }
9962
9963 err = register_netdev(dev);
9964 if (err) {
9965 dev_err(&pdev->dev, PFX "Cannot register net device, "
9966 "aborting.\n");
9967 goto err_out_iounmap;
9968 }
9969
9970 pci_set_drvdata(pdev, dev);
9971
9972 niu_device_announce(np);
9973
9974 return 0;
9975
9976 err_out_iounmap:
9977 if (np->regs) {
9978 iounmap(np->regs);
9979 np->regs = NULL;
9980 }
9981
9982 err_out_release_parent:
9983 niu_put_parent(np);
9984
9985 err_out_free_dev:
9986 free_netdev(dev);
9987
9988 err_out_free_res:
9989 pci_release_regions(pdev);
9990
9991 err_out_disable_pdev:
9992 pci_disable_device(pdev);
9993 pci_set_drvdata(pdev, NULL);
9994
9995 return err;
9996 }
9997
9998 static void __devexit niu_pci_remove_one(struct pci_dev *pdev)
9999 {
10000 struct net_device *dev = pci_get_drvdata(pdev);
10001
10002 if (dev) {
10003 struct niu *np = netdev_priv(dev);
10004
10005 unregister_netdev(dev);
10006 if (np->regs) {
10007 iounmap(np->regs);
10008 np->regs = NULL;
10009 }
10010
10011 niu_ldg_free(np);
10012
10013 niu_put_parent(np);
10014
10015 free_netdev(dev);
10016 pci_release_regions(pdev);
10017 pci_disable_device(pdev);
10018 pci_set_drvdata(pdev, NULL);
10019 }
10020 }
10021
10022 static int niu_suspend(struct pci_dev *pdev, pm_message_t state)
10023 {
10024 struct net_device *dev = pci_get_drvdata(pdev);
10025 struct niu *np = netdev_priv(dev);
10026 unsigned long flags;
10027
10028 if (!netif_running(dev))
10029 return 0;
10030
10031 flush_scheduled_work();
10032 niu_netif_stop(np);
10033
10034 del_timer_sync(&np->timer);
10035
10036 spin_lock_irqsave(&np->lock, flags);
10037 niu_enable_interrupts(np, 0);
10038 spin_unlock_irqrestore(&np->lock, flags);
10039
10040 netif_device_detach(dev);
10041
10042 spin_lock_irqsave(&np->lock, flags);
10043 niu_stop_hw(np);
10044 spin_unlock_irqrestore(&np->lock, flags);
10045
10046 pci_save_state(pdev);
10047
10048 return 0;
10049 }
10050
10051 static int niu_resume(struct pci_dev *pdev)
10052 {
10053 struct net_device *dev = pci_get_drvdata(pdev);
10054 struct niu *np = netdev_priv(dev);
10055 unsigned long flags;
10056 int err;
10057
10058 if (!netif_running(dev))
10059 return 0;
10060
10061 pci_restore_state(pdev);
10062
10063 netif_device_attach(dev);
10064
10065 spin_lock_irqsave(&np->lock, flags);
10066
10067 err = niu_init_hw(np);
10068 if (!err) {
10069 np->timer.expires = jiffies + HZ;
10070 add_timer(&np->timer);
10071 niu_netif_start(np);
10072 }
10073
10074 spin_unlock_irqrestore(&np->lock, flags);
10075
10076 return err;
10077 }
10078
10079 static struct pci_driver niu_pci_driver = {
10080 .name = DRV_MODULE_NAME,
10081 .id_table = niu_pci_tbl,
10082 .probe = niu_pci_init_one,
10083 .remove = __devexit_p(niu_pci_remove_one),
10084 .suspend = niu_suspend,
10085 .resume = niu_resume,
10086 };
10087
10088 #ifdef CONFIG_SPARC64
10089 static void *niu_phys_alloc_coherent(struct device *dev, size_t size,
10090 u64 *dma_addr, gfp_t flag)
10091 {
10092 unsigned long order = get_order(size);
10093 unsigned long page = __get_free_pages(flag, order);
10094
10095 if (page == 0UL)
10096 return NULL;
10097 memset((char *)page, 0, PAGE_SIZE << order);
10098 *dma_addr = __pa(page);
10099
10100 return (void *) page;
10101 }
10102
10103 static void niu_phys_free_coherent(struct device *dev, size_t size,
10104 void *cpu_addr, u64 handle)
10105 {
10106 unsigned long order = get_order(size);
10107
10108 free_pages((unsigned long) cpu_addr, order);
10109 }
10110
10111 static u64 niu_phys_map_page(struct device *dev, struct page *page,
10112 unsigned long offset, size_t size,
10113 enum dma_data_direction direction)
10114 {
10115 return page_to_phys(page) + offset;
10116 }
10117
10118 static void niu_phys_unmap_page(struct device *dev, u64 dma_address,
10119 size_t size, enum dma_data_direction direction)
10120 {
10121 /* Nothing to do. */
10122 }
10123
10124 static u64 niu_phys_map_single(struct device *dev, void *cpu_addr,
10125 size_t size,
10126 enum dma_data_direction direction)
10127 {
10128 return __pa(cpu_addr);
10129 }
10130
10131 static void niu_phys_unmap_single(struct device *dev, u64 dma_address,
10132 size_t size,
10133 enum dma_data_direction direction)
10134 {
10135 /* Nothing to do. */
10136 }
10137
10138 static const struct niu_ops niu_phys_ops = {
10139 .alloc_coherent = niu_phys_alloc_coherent,
10140 .free_coherent = niu_phys_free_coherent,
10141 .map_page = niu_phys_map_page,
10142 .unmap_page = niu_phys_unmap_page,
10143 .map_single = niu_phys_map_single,
10144 .unmap_single = niu_phys_unmap_single,
10145 };
10146
10147 static int __devinit niu_of_probe(struct of_device *op,
10148 const struct of_device_id *match)
10149 {
10150 union niu_parent_id parent_id;
10151 struct net_device *dev;
10152 struct niu *np;
10153 const u32 *reg;
10154 int err;
10155
10156 niu_driver_version();
10157
10158 reg = of_get_property(op->node, "reg", NULL);
10159 if (!reg) {
10160 dev_err(&op->dev, PFX "%s: No 'reg' property, aborting.\n",
10161 op->node->full_name);
10162 return -ENODEV;
10163 }
10164
10165 dev = niu_alloc_and_init(&op->dev, NULL, op,
10166 &niu_phys_ops, reg[0] & 0x1);
10167 if (!dev) {
10168 err = -ENOMEM;
10169 goto err_out;
10170 }
10171 np = netdev_priv(dev);
10172
10173 memset(&parent_id, 0, sizeof(parent_id));
10174 parent_id.of = of_get_parent(op->node);
10175
10176 np->parent = niu_get_parent(np, &parent_id,
10177 PLAT_TYPE_NIU);
10178 if (!np->parent) {
10179 err = -ENOMEM;
10180 goto err_out_free_dev;
10181 }
10182
10183 dev->features |= (NETIF_F_SG | NETIF_F_HW_CSUM);
10184
10185 np->regs = of_ioremap(&op->resource[1], 0,
10186 resource_size(&op->resource[1]),
10187 "niu regs");
10188 if (!np->regs) {
10189 dev_err(&op->dev, PFX "Cannot map device registers, "
10190 "aborting.\n");
10191 err = -ENOMEM;
10192 goto err_out_release_parent;
10193 }
10194
10195 np->vir_regs_1 = of_ioremap(&op->resource[2], 0,
10196 resource_size(&op->resource[2]),
10197 "niu vregs-1");
10198 if (!np->vir_regs_1) {
10199 dev_err(&op->dev, PFX "Cannot map device vir registers 1, "
10200 "aborting.\n");
10201 err = -ENOMEM;
10202 goto err_out_iounmap;
10203 }
10204
10205 np->vir_regs_2 = of_ioremap(&op->resource[3], 0,
10206 resource_size(&op->resource[3]),
10207 "niu vregs-2");
10208 if (!np->vir_regs_2) {
10209 dev_err(&op->dev, PFX "Cannot map device vir registers 2, "
10210 "aborting.\n");
10211 err = -ENOMEM;
10212 goto err_out_iounmap;
10213 }
10214
10215 niu_assign_netdev_ops(dev);
10216
10217 err = niu_get_invariants(np);
10218 if (err) {
10219 if (err != -ENODEV)
10220 dev_err(&op->dev, PFX "Problem fetching invariants "
10221 "of chip, aborting.\n");
10222 goto err_out_iounmap;
10223 }
10224
10225 err = register_netdev(dev);
10226 if (err) {
10227 dev_err(&op->dev, PFX "Cannot register net device, "
10228 "aborting.\n");
10229 goto err_out_iounmap;
10230 }
10231
10232 dev_set_drvdata(&op->dev, dev);
10233
10234 niu_device_announce(np);
10235
10236 return 0;
10237
10238 err_out_iounmap:
10239 if (np->vir_regs_1) {
10240 of_iounmap(&op->resource[2], np->vir_regs_1,
10241 resource_size(&op->resource[2]));
10242 np->vir_regs_1 = NULL;
10243 }
10244
10245 if (np->vir_regs_2) {
10246 of_iounmap(&op->resource[3], np->vir_regs_2,
10247 resource_size(&op->resource[3]));
10248 np->vir_regs_2 = NULL;
10249 }
10250
10251 if (np->regs) {
10252 of_iounmap(&op->resource[1], np->regs,
10253 resource_size(&op->resource[1]));
10254 np->regs = NULL;
10255 }
10256
10257 err_out_release_parent:
10258 niu_put_parent(np);
10259
10260 err_out_free_dev:
10261 free_netdev(dev);
10262
10263 err_out:
10264 return err;
10265 }
10266
10267 static int __devexit niu_of_remove(struct of_device *op)
10268 {
10269 struct net_device *dev = dev_get_drvdata(&op->dev);
10270
10271 if (dev) {
10272 struct niu *np = netdev_priv(dev);
10273
10274 unregister_netdev(dev);
10275
10276 if (np->vir_regs_1) {
10277 of_iounmap(&op->resource[2], np->vir_regs_1,
10278 resource_size(&op->resource[2]));
10279 np->vir_regs_1 = NULL;
10280 }
10281
10282 if (np->vir_regs_2) {
10283 of_iounmap(&op->resource[3], np->vir_regs_2,
10284 resource_size(&op->resource[3]));
10285 np->vir_regs_2 = NULL;
10286 }
10287
10288 if (np->regs) {
10289 of_iounmap(&op->resource[1], np->regs,
10290 resource_size(&op->resource[1]));
10291 np->regs = NULL;
10292 }
10293
10294 niu_ldg_free(np);
10295
10296 niu_put_parent(np);
10297
10298 free_netdev(dev);
10299 dev_set_drvdata(&op->dev, NULL);
10300 }
10301 return 0;
10302 }
10303
10304 static const struct of_device_id niu_match[] = {
10305 {
10306 .name = "network",
10307 .compatible = "SUNW,niusl",
10308 },
10309 {},
10310 };
10311 MODULE_DEVICE_TABLE(of, niu_match);
10312
10313 static struct of_platform_driver niu_of_driver = {
10314 .name = "niu",
10315 .match_table = niu_match,
10316 .probe = niu_of_probe,
10317 .remove = __devexit_p(niu_of_remove),
10318 };
10319
10320 #endif /* CONFIG_SPARC64 */
10321
10322 static int __init niu_init(void)
10323 {
10324 int err = 0;
10325
10326 BUILD_BUG_ON(PAGE_SIZE < 4 * 1024);
10327
10328 niu_debug = netif_msg_init(debug, NIU_MSG_DEFAULT);
10329
10330 #ifdef CONFIG_SPARC64
10331 err = of_register_driver(&niu_of_driver, &of_bus_type);
10332 #endif
10333
10334 if (!err) {
10335 err = pci_register_driver(&niu_pci_driver);
10336 #ifdef CONFIG_SPARC64
10337 if (err)
10338 of_unregister_driver(&niu_of_driver);
10339 #endif
10340 }
10341
10342 return err;
10343 }
10344
10345 static void __exit niu_exit(void)
10346 {
10347 pci_unregister_driver(&niu_pci_driver);
10348 #ifdef CONFIG_SPARC64
10349 of_unregister_driver(&niu_of_driver);
10350 #endif
10351 }
10352
10353 module_init(niu_init);
10354 module_exit(niu_exit);