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drm/radeon/kms: add missing case for cayman thermal sensor
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / net / niu.c
blob32678b6c6b3997e3c408e754a3e8ec7b358fd752
1 /* niu.c: Neptune ethernet driver.
2 *
3 * Copyright (C) 2007, 2008 David S. Miller (davem@davemloft.net)
4 */
5
6 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
7
8 #include <linux/module.h>
9 #include <linux/init.h>
10 #include <linux/pci.h>
11 #include <linux/dma-mapping.h>
12 #include <linux/netdevice.h>
13 #include <linux/ethtool.h>
14 #include <linux/etherdevice.h>
15 #include <linux/platform_device.h>
16 #include <linux/delay.h>
17 #include <linux/bitops.h>
18 #include <linux/mii.h>
19 #include <linux/if_ether.h>
20 #include <linux/if_vlan.h>
21 #include <linux/ip.h>
22 #include <linux/in.h>
23 #include <linux/ipv6.h>
24 #include <linux/log2.h>
25 #include <linux/jiffies.h>
26 #include <linux/crc32.h>
27 #include <linux/list.h>
28 #include <linux/slab.h>
29
30 #include <linux/io.h>
31 #include <linux/of_device.h>
32
33 #include "niu.h"
34
35 #define DRV_MODULE_NAME "niu"
36 #define DRV_MODULE_VERSION "1.1"
37 #define DRV_MODULE_RELDATE "Apr 22, 2010"
38
39 static char version[] __devinitdata =
40 DRV_MODULE_NAME ".c:v" DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")\n";
41
42 MODULE_AUTHOR("David S. Miller (davem@davemloft.net)");
43 MODULE_DESCRIPTION("NIU ethernet driver");
44 MODULE_LICENSE("GPL");
45 MODULE_VERSION(DRV_MODULE_VERSION);
46
47 #ifndef readq
48 static u64 readq(void __iomem *reg)
49 {
50 return ((u64) readl(reg)) | (((u64) readl(reg + 4UL)) << 32);
51 }
52
53 static void writeq(u64 val, void __iomem *reg)
54 {
55 writel(val & 0xffffffff, reg);
56 writel(val >> 32, reg + 0x4UL);
57 }
58 #endif
59
60 static DEFINE_PCI_DEVICE_TABLE(niu_pci_tbl) = {
61 {PCI_DEVICE(PCI_VENDOR_ID_SUN, 0xabcd)},
62 {}
63 };
64
65 MODULE_DEVICE_TABLE(pci, niu_pci_tbl);
66
67 #define NIU_TX_TIMEOUT (5 * HZ)
68
69 #define nr64(reg) readq(np->regs + (reg))
70 #define nw64(reg, val) writeq((val), np->regs + (reg))
71
72 #define nr64_mac(reg) readq(np->mac_regs + (reg))
73 #define nw64_mac(reg, val) writeq((val), np->mac_regs + (reg))
74
75 #define nr64_ipp(reg) readq(np->regs + np->ipp_off + (reg))
76 #define nw64_ipp(reg, val) writeq((val), np->regs + np->ipp_off + (reg))
77
78 #define nr64_pcs(reg) readq(np->regs + np->pcs_off + (reg))
79 #define nw64_pcs(reg, val) writeq((val), np->regs + np->pcs_off + (reg))
80
81 #define nr64_xpcs(reg) readq(np->regs + np->xpcs_off + (reg))
82 #define nw64_xpcs(reg, val) writeq((val), np->regs + np->xpcs_off + (reg))
83
84 #define NIU_MSG_DEFAULT (NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_LINK)
85
86 static int niu_debug;
87 static int debug = -1;
88 module_param(debug, int, 0);
89 MODULE_PARM_DESC(debug, "NIU debug level");
90
91 #define niu_lock_parent(np, flags) \
92 spin_lock_irqsave(&np->parent->lock, flags)
93 #define niu_unlock_parent(np, flags) \
94 spin_unlock_irqrestore(&np->parent->lock, flags)
95
96 static int serdes_init_10g_serdes(struct niu *np);
97
98 static int __niu_wait_bits_clear_mac(struct niu *np, unsigned long reg,
99 u64 bits, int limit, int delay)
100 {
101 while (--limit >= 0) {
102 u64 val = nr64_mac(reg);
103
104 if (!(val & bits))
105 break;
106 udelay(delay);
107 }
108 if (limit < 0)
109 return -ENODEV;
110 return 0;
111 }
112
113 static int __niu_set_and_wait_clear_mac(struct niu *np, unsigned long reg,
114 u64 bits, int limit, int delay,
115 const char *reg_name)
116 {
117 int err;
118
119 nw64_mac(reg, bits);
120 err = __niu_wait_bits_clear_mac(np, reg, bits, limit, delay);
121 if (err)
122 netdev_err(np->dev, "bits (%llx) of register %s would not clear, val[%llx]\n",
123 (unsigned long long)bits, reg_name,
124 (unsigned long long)nr64_mac(reg));
125 return err;
126 }
127
128 #define niu_set_and_wait_clear_mac(NP, REG, BITS, LIMIT, DELAY, REG_NAME) \
129 ({ BUILD_BUG_ON(LIMIT <= 0 || DELAY < 0); \
130 __niu_set_and_wait_clear_mac(NP, REG, BITS, LIMIT, DELAY, REG_NAME); \
131 })
132
133 static int __niu_wait_bits_clear_ipp(struct niu *np, unsigned long reg,
134 u64 bits, int limit, int delay)
135 {
136 while (--limit >= 0) {
137 u64 val = nr64_ipp(reg);
138
139 if (!(val & bits))
140 break;
141 udelay(delay);
142 }
143 if (limit < 0)
144 return -ENODEV;
145 return 0;
146 }
147
148 static int __niu_set_and_wait_clear_ipp(struct niu *np, unsigned long reg,
149 u64 bits, int limit, int delay,
150 const char *reg_name)
151 {
152 int err;
153 u64 val;
154
155 val = nr64_ipp(reg);
156 val |= bits;
157 nw64_ipp(reg, val);
158
159 err = __niu_wait_bits_clear_ipp(np, reg, bits, limit, delay);
160 if (err)
161 netdev_err(np->dev, "bits (%llx) of register %s would not clear, val[%llx]\n",
162 (unsigned long long)bits, reg_name,
163 (unsigned long long)nr64_ipp(reg));
164 return err;
165 }
166
167 #define niu_set_and_wait_clear_ipp(NP, REG, BITS, LIMIT, DELAY, REG_NAME) \
168 ({ BUILD_BUG_ON(LIMIT <= 0 || DELAY < 0); \
169 __niu_set_and_wait_clear_ipp(NP, REG, BITS, LIMIT, DELAY, REG_NAME); \
170 })
171
172 static int __niu_wait_bits_clear(struct niu *np, unsigned long reg,
173 u64 bits, int limit, int delay)
174 {
175 while (--limit >= 0) {
176 u64 val = nr64(reg);
177
178 if (!(val & bits))
179 break;
180 udelay(delay);
181 }
182 if (limit < 0)
183 return -ENODEV;
184 return 0;
185 }
186
187 #define niu_wait_bits_clear(NP, REG, BITS, LIMIT, DELAY) \
188 ({ BUILD_BUG_ON(LIMIT <= 0 || DELAY < 0); \
189 __niu_wait_bits_clear(NP, REG, BITS, LIMIT, DELAY); \
190 })
191
192 static int __niu_set_and_wait_clear(struct niu *np, unsigned long reg,
193 u64 bits, int limit, int delay,
194 const char *reg_name)
195 {
196 int err;
197
198 nw64(reg, bits);
199 err = __niu_wait_bits_clear(np, reg, bits, limit, delay);
200 if (err)
201 netdev_err(np->dev, "bits (%llx) of register %s would not clear, val[%llx]\n",
202 (unsigned long long)bits, reg_name,
203 (unsigned long long)nr64(reg));
204 return err;
205 }
206
207 #define niu_set_and_wait_clear(NP, REG, BITS, LIMIT, DELAY, REG_NAME) \
208 ({ BUILD_BUG_ON(LIMIT <= 0 || DELAY < 0); \
209 __niu_set_and_wait_clear(NP, REG, BITS, LIMIT, DELAY, REG_NAME); \
210 })
211
212 static void niu_ldg_rearm(struct niu *np, struct niu_ldg *lp, int on)
213 {
214 u64 val = (u64) lp->timer;
215
216 if (on)
217 val |= LDG_IMGMT_ARM;
218
219 nw64(LDG_IMGMT(lp->ldg_num), val);
220 }
221
222 static int niu_ldn_irq_enable(struct niu *np, int ldn, int on)
223 {
224 unsigned long mask_reg, bits;
225 u64 val;
226
227 if (ldn < 0 || ldn > LDN_MAX)
228 return -EINVAL;
229
230 if (ldn < 64) {
231 mask_reg = LD_IM0(ldn);
232 bits = LD_IM0_MASK;
233 } else {
234 mask_reg = LD_IM1(ldn - 64);
235 bits = LD_IM1_MASK;
236 }
237
238 val = nr64(mask_reg);
239 if (on)
240 val &= ~bits;
241 else
242 val |= bits;
243 nw64(mask_reg, val);
244
245 return 0;
246 }
247
248 static int niu_enable_ldn_in_ldg(struct niu *np, struct niu_ldg *lp, int on)
249 {
250 struct niu_parent *parent = np->parent;
251 int i;
252
253 for (i = 0; i <= LDN_MAX; i++) {
254 int err;
255
256 if (parent->ldg_map[i] != lp->ldg_num)
257 continue;
258
259 err = niu_ldn_irq_enable(np, i, on);
260 if (err)
261 return err;
262 }
263 return 0;
264 }
265
266 static int niu_enable_interrupts(struct niu *np, int on)
267 {
268 int i;
269
270 for (i = 0; i < np->num_ldg; i++) {
271 struct niu_ldg *lp = &np->ldg[i];
272 int err;
273
274 err = niu_enable_ldn_in_ldg(np, lp, on);
275 if (err)
276 return err;
277 }
278 for (i = 0; i < np->num_ldg; i++)
279 niu_ldg_rearm(np, &np->ldg[i], on);
280
281 return 0;
282 }
283
284 static u32 phy_encode(u32 type, int port)
285 {
286 return type << (port * 2);
287 }
288
289 static u32 phy_decode(u32 val, int port)
290 {
291 return (val >> (port * 2)) & PORT_TYPE_MASK;
292 }
293
294 static int mdio_wait(struct niu *np)
295 {
296 int limit = 1000;
297 u64 val;
298
299 while (--limit > 0) {
300 val = nr64(MIF_FRAME_OUTPUT);
301 if ((val >> MIF_FRAME_OUTPUT_TA_SHIFT) & 0x1)
302 return val & MIF_FRAME_OUTPUT_DATA;
303
304 udelay(10);
305 }
306
307 return -ENODEV;
308 }
309
310 static int mdio_read(struct niu *np, int port, int dev, int reg)
311 {
312 int err;
313
314 nw64(MIF_FRAME_OUTPUT, MDIO_ADDR_OP(port, dev, reg));
315 err = mdio_wait(np);
316 if (err < 0)
317 return err;
318
319 nw64(MIF_FRAME_OUTPUT, MDIO_READ_OP(port, dev));
320 return mdio_wait(np);
321 }
322
323 static int mdio_write(struct niu *np, int port, int dev, int reg, int data)
324 {
325 int err;
326
327 nw64(MIF_FRAME_OUTPUT, MDIO_ADDR_OP(port, dev, reg));
328 err = mdio_wait(np);
329 if (err < 0)
330 return err;
331
332 nw64(MIF_FRAME_OUTPUT, MDIO_WRITE_OP(port, dev, data));
333 err = mdio_wait(np);
334 if (err < 0)
335 return err;
336
337 return 0;
338 }
339
340 static int mii_read(struct niu *np, int port, int reg)
341 {
342 nw64(MIF_FRAME_OUTPUT, MII_READ_OP(port, reg));
343 return mdio_wait(np);
344 }
345
346 static int mii_write(struct niu *np, int port, int reg, int data)
347 {
348 int err;
349
350 nw64(MIF_FRAME_OUTPUT, MII_WRITE_OP(port, reg, data));
351 err = mdio_wait(np);
352 if (err < 0)
353 return err;
354
355 return 0;
356 }
357
358 static int esr2_set_tx_cfg(struct niu *np, unsigned long channel, u32 val)
359 {
360 int err;
361
362 err = mdio_write(np, np->port, NIU_ESR2_DEV_ADDR,
363 ESR2_TI_PLL_TX_CFG_L(channel),
364 val & 0xffff);
365 if (!err)
366 err = mdio_write(np, np->port, NIU_ESR2_DEV_ADDR,
367 ESR2_TI_PLL_TX_CFG_H(channel),
368 val >> 16);
369 return err;
370 }
371
372 static int esr2_set_rx_cfg(struct niu *np, unsigned long channel, u32 val)
373 {
374 int err;
375
376 err = mdio_write(np, np->port, NIU_ESR2_DEV_ADDR,
377 ESR2_TI_PLL_RX_CFG_L(channel),
378 val & 0xffff);
379 if (!err)
380 err = mdio_write(np, np->port, NIU_ESR2_DEV_ADDR,
381 ESR2_TI_PLL_RX_CFG_H(channel),
382 val >> 16);
383 return err;
384 }
385
386 /* Mode is always 10G fiber. */
387 static int serdes_init_niu_10g_fiber(struct niu *np)
388 {
389 struct niu_link_config *lp = &np->link_config;
390 u32 tx_cfg, rx_cfg;
391 unsigned long i;
392
393 tx_cfg = (PLL_TX_CFG_ENTX | PLL_TX_CFG_SWING_1375MV);
394 rx_cfg = (PLL_RX_CFG_ENRX | PLL_RX_CFG_TERM_0P8VDDT |
395 PLL_RX_CFG_ALIGN_ENA | PLL_RX_CFG_LOS_LTHRESH |
396 PLL_RX_CFG_EQ_LP_ADAPTIVE);
397
398 if (lp->loopback_mode == LOOPBACK_PHY) {
399 u16 test_cfg = PLL_TEST_CFG_LOOPBACK_CML_DIS;
400
401 mdio_write(np, np->port, NIU_ESR2_DEV_ADDR,
402 ESR2_TI_PLL_TEST_CFG_L, test_cfg);
403
404 tx_cfg |= PLL_TX_CFG_ENTEST;
405 rx_cfg |= PLL_RX_CFG_ENTEST;
406 }
407
408 /* Initialize all 4 lanes of the SERDES. */
409 for (i = 0; i < 4; i++) {
410 int err = esr2_set_tx_cfg(np, i, tx_cfg);
411 if (err)
412 return err;
413 }
414
415 for (i = 0; i < 4; i++) {
416 int err = esr2_set_rx_cfg(np, i, rx_cfg);
417 if (err)
418 return err;
419 }
420
421 return 0;
422 }
423
424 static int serdes_init_niu_1g_serdes(struct niu *np)
425 {
426 struct niu_link_config *lp = &np->link_config;
427 u16 pll_cfg, pll_sts;
428 int max_retry = 100;
429 u64 uninitialized_var(sig), mask, val;
430 u32 tx_cfg, rx_cfg;
431 unsigned long i;
432 int err;
433
434 tx_cfg = (PLL_TX_CFG_ENTX | PLL_TX_CFG_SWING_1375MV |
435 PLL_TX_CFG_RATE_HALF);
436 rx_cfg = (PLL_RX_CFG_ENRX | PLL_RX_CFG_TERM_0P8VDDT |
437 PLL_RX_CFG_ALIGN_ENA | PLL_RX_CFG_LOS_LTHRESH |
438 PLL_RX_CFG_RATE_HALF);
439
440 if (np->port == 0)
441 rx_cfg |= PLL_RX_CFG_EQ_LP_ADAPTIVE;
442
443 if (lp->loopback_mode == LOOPBACK_PHY) {
444 u16 test_cfg = PLL_TEST_CFG_LOOPBACK_CML_DIS;
445
446 mdio_write(np, np->port, NIU_ESR2_DEV_ADDR,
447 ESR2_TI_PLL_TEST_CFG_L, test_cfg);
448
449 tx_cfg |= PLL_TX_CFG_ENTEST;
450 rx_cfg |= PLL_RX_CFG_ENTEST;
451 }
452
453 /* Initialize PLL for 1G */
454 pll_cfg = (PLL_CFG_ENPLL | PLL_CFG_MPY_8X);
455
456 err = mdio_write(np, np->port, NIU_ESR2_DEV_ADDR,
457 ESR2_TI_PLL_CFG_L, pll_cfg);
458 if (err) {
459 netdev_err(np->dev, "NIU Port %d %s() mdio write to ESR2_TI_PLL_CFG_L failed\n",
460 np->port, __func__);
461 return err;
462 }
463
464 pll_sts = PLL_CFG_ENPLL;
465
466 err = mdio_write(np, np->port, NIU_ESR2_DEV_ADDR,
467 ESR2_TI_PLL_STS_L, pll_sts);
468 if (err) {
469 netdev_err(np->dev, "NIU Port %d %s() mdio write to ESR2_TI_PLL_STS_L failed\n",
470 np->port, __func__);
471 return err;
472 }
473
474 udelay(200);
475
476 /* Initialize all 4 lanes of the SERDES. */
477 for (i = 0; i < 4; i++) {
478 err = esr2_set_tx_cfg(np, i, tx_cfg);
479 if (err)
480 return err;
481 }
482
483 for (i = 0; i < 4; i++) {
484 err = esr2_set_rx_cfg(np, i, rx_cfg);
485 if (err)
486 return err;
487 }
488
489 switch (np->port) {
490 case 0:
491 val = (ESR_INT_SRDY0_P0 | ESR_INT_DET0_P0);
492 mask = val;
493 break;
494
495 case 1:
496 val = (ESR_INT_SRDY0_P1 | ESR_INT_DET0_P1);
497 mask = val;
498 break;
499
500 default:
501 return -EINVAL;
502 }
503
504 while (max_retry--) {
505 sig = nr64(ESR_INT_SIGNALS);
506 if ((sig & mask) == val)
507 break;
508
509 mdelay(500);
510 }
511
512 if ((sig & mask) != val) {
513 netdev_err(np->dev, "Port %u signal bits [%08x] are not [%08x]\n",
514 np->port, (int)(sig & mask), (int)val);
515 return -ENODEV;
516 }
517
518 return 0;
519 }
520
521 static int serdes_init_niu_10g_serdes(struct niu *np)
522 {
523 struct niu_link_config *lp = &np->link_config;
524 u32 tx_cfg, rx_cfg, pll_cfg, pll_sts;
525 int max_retry = 100;
526 u64 uninitialized_var(sig), mask, val;
527 unsigned long i;
528 int err;
529
530 tx_cfg = (PLL_TX_CFG_ENTX | PLL_TX_CFG_SWING_1375MV);
531 rx_cfg = (PLL_RX_CFG_ENRX | PLL_RX_CFG_TERM_0P8VDDT |
532 PLL_RX_CFG_ALIGN_ENA | PLL_RX_CFG_LOS_LTHRESH |
533 PLL_RX_CFG_EQ_LP_ADAPTIVE);
534
535 if (lp->loopback_mode == LOOPBACK_PHY) {
536 u16 test_cfg = PLL_TEST_CFG_LOOPBACK_CML_DIS;
537
538 mdio_write(np, np->port, NIU_ESR2_DEV_ADDR,
539 ESR2_TI_PLL_TEST_CFG_L, test_cfg);
540
541 tx_cfg |= PLL_TX_CFG_ENTEST;
542 rx_cfg |= PLL_RX_CFG_ENTEST;
543 }
544
545 /* Initialize PLL for 10G */
546 pll_cfg = (PLL_CFG_ENPLL | PLL_CFG_MPY_10X);
547
548 err = mdio_write(np, np->port, NIU_ESR2_DEV_ADDR,
549 ESR2_TI_PLL_CFG_L, pll_cfg & 0xffff);
550 if (err) {
551 netdev_err(np->dev, "NIU Port %d %s() mdio write to ESR2_TI_PLL_CFG_L failed\n",
552 np->port, __func__);
553 return err;
554 }
555
556 pll_sts = PLL_CFG_ENPLL;
557
558 err = mdio_write(np, np->port, NIU_ESR2_DEV_ADDR,
559 ESR2_TI_PLL_STS_L, pll_sts & 0xffff);
560 if (err) {
561 netdev_err(np->dev, "NIU Port %d %s() mdio write to ESR2_TI_PLL_STS_L failed\n",
562 np->port, __func__);
563 return err;
564 }
565
566 udelay(200);
567
568 /* Initialize all 4 lanes of the SERDES. */
569 for (i = 0; i < 4; i++) {
570 err = esr2_set_tx_cfg(np, i, tx_cfg);
571 if (err)
572 return err;
573 }
574
575 for (i = 0; i < 4; i++) {
576 err = esr2_set_rx_cfg(np, i, rx_cfg);
577 if (err)
578 return err;
579 }
580
581 /* check if serdes is ready */
582
583 switch (np->port) {
584 case 0:
585 mask = ESR_INT_SIGNALS_P0_BITS;
586 val = (ESR_INT_SRDY0_P0 |
587 ESR_INT_DET0_P0 |
588 ESR_INT_XSRDY_P0 |
589 ESR_INT_XDP_P0_CH3 |
590 ESR_INT_XDP_P0_CH2 |
591 ESR_INT_XDP_P0_CH1 |
592 ESR_INT_XDP_P0_CH0);
593 break;
594
595 case 1:
596 mask = ESR_INT_SIGNALS_P1_BITS;
597 val = (ESR_INT_SRDY0_P1 |
598 ESR_INT_DET0_P1 |
599 ESR_INT_XSRDY_P1 |
600 ESR_INT_XDP_P1_CH3 |
601 ESR_INT_XDP_P1_CH2 |
602 ESR_INT_XDP_P1_CH1 |
603 ESR_INT_XDP_P1_CH0);
604 break;
605
606 default:
607 return -EINVAL;
608 }
609
610 while (max_retry--) {
611 sig = nr64(ESR_INT_SIGNALS);
612 if ((sig & mask) == val)
613 break;
614
615 mdelay(500);
616 }
617
618 if ((sig & mask) != val) {
619 pr_info("NIU Port %u signal bits [%08x] are not [%08x] for 10G...trying 1G\n",
620 np->port, (int)(sig & mask), (int)val);
621
622 /* 10G failed, try initializing at 1G */
623 err = serdes_init_niu_1g_serdes(np);
624 if (!err) {
625 np->flags &= ~NIU_FLAGS_10G;
626 np->mac_xcvr = MAC_XCVR_PCS;
627 } else {
628 netdev_err(np->dev, "Port %u 10G/1G SERDES Link Failed\n",
629 np->port);
630 return -ENODEV;
631 }
632 }
633 return 0;
634 }
635
636 static int esr_read_rxtx_ctrl(struct niu *np, unsigned long chan, u32 *val)
637 {
638 int err;
639
640 err = mdio_read(np, np->port, NIU_ESR_DEV_ADDR, ESR_RXTX_CTRL_L(chan));
641 if (err >= 0) {
642 *val = (err & 0xffff);
643 err = mdio_read(np, np->port, NIU_ESR_DEV_ADDR,
644 ESR_RXTX_CTRL_H(chan));
645 if (err >= 0)
646 *val |= ((err & 0xffff) << 16);
647 err = 0;
648 }
649 return err;
650 }
651
652 static int esr_read_glue0(struct niu *np, unsigned long chan, u32 *val)
653 {
654 int err;
655
656 err = mdio_read(np, np->port, NIU_ESR_DEV_ADDR,
657 ESR_GLUE_CTRL0_L(chan));
658 if (err >= 0) {
659 *val = (err & 0xffff);
660 err = mdio_read(np, np->port, NIU_ESR_DEV_ADDR,
661 ESR_GLUE_CTRL0_H(chan));
662 if (err >= 0) {
663 *val |= ((err & 0xffff) << 16);
664 err = 0;
665 }
666 }
667 return err;
668 }
669
670 static int esr_read_reset(struct niu *np, u32 *val)
671 {
672 int err;
673
674 err = mdio_read(np, np->port, NIU_ESR_DEV_ADDR,
675 ESR_RXTX_RESET_CTRL_L);
676 if (err >= 0) {
677 *val = (err & 0xffff);
678 err = mdio_read(np, np->port, NIU_ESR_DEV_ADDR,
679 ESR_RXTX_RESET_CTRL_H);
680 if (err >= 0) {
681 *val |= ((err & 0xffff) << 16);
682 err = 0;
683 }
684 }
685 return err;
686 }
687
688 static int esr_write_rxtx_ctrl(struct niu *np, unsigned long chan, u32 val)
689 {
690 int err;
691
692 err = mdio_write(np, np->port, NIU_ESR_DEV_ADDR,
693 ESR_RXTX_CTRL_L(chan), val & 0xffff);
694 if (!err)
695 err = mdio_write(np, np->port, NIU_ESR_DEV_ADDR,
696 ESR_RXTX_CTRL_H(chan), (val >> 16));
697 return err;
698 }
699
700 static int esr_write_glue0(struct niu *np, unsigned long chan, u32 val)
701 {
702 int err;
703
704 err = mdio_write(np, np->port, NIU_ESR_DEV_ADDR,
705 ESR_GLUE_CTRL0_L(chan), val & 0xffff);
706 if (!err)
707 err = mdio_write(np, np->port, NIU_ESR_DEV_ADDR,
708 ESR_GLUE_CTRL0_H(chan), (val >> 16));
709 return err;
710 }
711
712 static int esr_reset(struct niu *np)
713 {
714 u32 uninitialized_var(reset);
715 int err;
716
717 err = mdio_write(np, np->port, NIU_ESR_DEV_ADDR,
718 ESR_RXTX_RESET_CTRL_L, 0x0000);
719 if (err)
720 return err;
721 err = mdio_write(np, np->port, NIU_ESR_DEV_ADDR,
722 ESR_RXTX_RESET_CTRL_H, 0xffff);
723 if (err)
724 return err;
725 udelay(200);
726
727 err = mdio_write(np, np->port, NIU_ESR_DEV_ADDR,
728 ESR_RXTX_RESET_CTRL_L, 0xffff);
729 if (err)
730 return err;
731 udelay(200);
732
733 err = mdio_write(np, np->port, NIU_ESR_DEV_ADDR,
734 ESR_RXTX_RESET_CTRL_H, 0x0000);
735 if (err)
736 return err;
737 udelay(200);
738
739 err = esr_read_reset(np, &reset);
740 if (err)
741 return err;
742 if (reset != 0) {
743 netdev_err(np->dev, "Port %u ESR_RESET did not clear [%08x]\n",
744 np->port, reset);
745 return -ENODEV;
746 }
747
748 return 0;
749 }
750
751 static int serdes_init_10g(struct niu *np)
752 {
753 struct niu_link_config *lp = &np->link_config;
754 unsigned long ctrl_reg, test_cfg_reg, i;
755 u64 ctrl_val, test_cfg_val, sig, mask, val;
756 int err;
757
758 switch (np->port) {
759 case 0:
760 ctrl_reg = ENET_SERDES_0_CTRL_CFG;
761 test_cfg_reg = ENET_SERDES_0_TEST_CFG;
762 break;
763 case 1:
764 ctrl_reg = ENET_SERDES_1_CTRL_CFG;
765 test_cfg_reg = ENET_SERDES_1_TEST_CFG;
766 break;
767
768 default:
769 return -EINVAL;
770 }
771 ctrl_val = (ENET_SERDES_CTRL_SDET_0 |
772 ENET_SERDES_CTRL_SDET_1 |
773 ENET_SERDES_CTRL_SDET_2 |
774 ENET_SERDES_CTRL_SDET_3 |
775 (0x5 << ENET_SERDES_CTRL_EMPH_0_SHIFT) |
776 (0x5 << ENET_SERDES_CTRL_EMPH_1_SHIFT) |
777 (0x5 << ENET_SERDES_CTRL_EMPH_2_SHIFT) |
778 (0x5 << ENET_SERDES_CTRL_EMPH_3_SHIFT) |
779 (0x1 << ENET_SERDES_CTRL_LADJ_0_SHIFT) |
780 (0x1 << ENET_SERDES_CTRL_LADJ_1_SHIFT) |
781 (0x1 << ENET_SERDES_CTRL_LADJ_2_SHIFT) |
782 (0x1 << ENET_SERDES_CTRL_LADJ_3_SHIFT));
783 test_cfg_val = 0;
784
785 if (lp->loopback_mode == LOOPBACK_PHY) {
786 test_cfg_val |= ((ENET_TEST_MD_PAD_LOOPBACK <<
787 ENET_SERDES_TEST_MD_0_SHIFT) |
788 (ENET_TEST_MD_PAD_LOOPBACK <<
789 ENET_SERDES_TEST_MD_1_SHIFT) |
790 (ENET_TEST_MD_PAD_LOOPBACK <<
791 ENET_SERDES_TEST_MD_2_SHIFT) |
792 (ENET_TEST_MD_PAD_LOOPBACK <<
793 ENET_SERDES_TEST_MD_3_SHIFT));
794 }
795
796 nw64(ctrl_reg, ctrl_val);
797 nw64(test_cfg_reg, test_cfg_val);
798
799 /* Initialize all 4 lanes of the SERDES. */
800 for (i = 0; i < 4; i++) {
801 u32 rxtx_ctrl, glue0;
802
803 err = esr_read_rxtx_ctrl(np, i, &rxtx_ctrl);
804 if (err)
805 return err;
806 err = esr_read_glue0(np, i, &glue0);
807 if (err)
808 return err;
809
810 rxtx_ctrl &= ~(ESR_RXTX_CTRL_VMUXLO);
811 rxtx_ctrl |= (ESR_RXTX_CTRL_ENSTRETCH |
812 (2 << ESR_RXTX_CTRL_VMUXLO_SHIFT));
813
814 glue0 &= ~(ESR_GLUE_CTRL0_SRATE |
815 ESR_GLUE_CTRL0_THCNT |
816 ESR_GLUE_CTRL0_BLTIME);
817 glue0 |= (ESR_GLUE_CTRL0_RXLOSENAB |
818 (0xf << ESR_GLUE_CTRL0_SRATE_SHIFT) |
819 (0xff << ESR_GLUE_CTRL0_THCNT_SHIFT) |
820 (BLTIME_300_CYCLES <<
821 ESR_GLUE_CTRL0_BLTIME_SHIFT));
822
823 err = esr_write_rxtx_ctrl(np, i, rxtx_ctrl);
824 if (err)
825 return err;
826 err = esr_write_glue0(np, i, glue0);
827 if (err)
828 return err;
829 }
830
831 err = esr_reset(np);
832 if (err)
833 return err;
834
835 sig = nr64(ESR_INT_SIGNALS);
836 switch (np->port) {
837 case 0:
838 mask = ESR_INT_SIGNALS_P0_BITS;
839 val = (ESR_INT_SRDY0_P0 |
840 ESR_INT_DET0_P0 |
841 ESR_INT_XSRDY_P0 |
842 ESR_INT_XDP_P0_CH3 |
843 ESR_INT_XDP_P0_CH2 |
844 ESR_INT_XDP_P0_CH1 |
845 ESR_INT_XDP_P0_CH0);
846 break;
847
848 case 1:
849 mask = ESR_INT_SIGNALS_P1_BITS;
850 val = (ESR_INT_SRDY0_P1 |
851 ESR_INT_DET0_P1 |
852 ESR_INT_XSRDY_P1 |
853 ESR_INT_XDP_P1_CH3 |
854 ESR_INT_XDP_P1_CH2 |
855 ESR_INT_XDP_P1_CH1 |
856 ESR_INT_XDP_P1_CH0);
857 break;
858
859 default:
860 return -EINVAL;
861 }
862
863 if ((sig & mask) != val) {
864 if (np->flags & NIU_FLAGS_HOTPLUG_PHY) {
865 np->flags &= ~NIU_FLAGS_HOTPLUG_PHY_PRESENT;
866 return 0;
867 }
868 netdev_err(np->dev, "Port %u signal bits [%08x] are not [%08x]\n",
869 np->port, (int)(sig & mask), (int)val);
870 return -ENODEV;
871 }
872 if (np->flags & NIU_FLAGS_HOTPLUG_PHY)
873 np->flags |= NIU_FLAGS_HOTPLUG_PHY_PRESENT;
874 return 0;
875 }
876
877 static int serdes_init_1g(struct niu *np)
878 {
879 u64 val;
880
881 val = nr64(ENET_SERDES_1_PLL_CFG);
882 val &= ~ENET_SERDES_PLL_FBDIV2;
883 switch (np->port) {
884 case 0:
885 val |= ENET_SERDES_PLL_HRATE0;
886 break;
887 case 1:
888 val |= ENET_SERDES_PLL_HRATE1;
889 break;
890 case 2:
891 val |= ENET_SERDES_PLL_HRATE2;
892 break;
893 case 3:
894 val |= ENET_SERDES_PLL_HRATE3;
895 break;
896 default:
897 return -EINVAL;
898 }
899 nw64(ENET_SERDES_1_PLL_CFG, val);
900
901 return 0;
902 }
903
904 static int serdes_init_1g_serdes(struct niu *np)
905 {
906 struct niu_link_config *lp = &np->link_config;
907 unsigned long ctrl_reg, test_cfg_reg, pll_cfg, i;
908 u64 ctrl_val, test_cfg_val, sig, mask, val;
909 int err;
910 u64 reset_val, val_rd;
911
912 val = ENET_SERDES_PLL_HRATE0 | ENET_SERDES_PLL_HRATE1 |
913 ENET_SERDES_PLL_HRATE2 | ENET_SERDES_PLL_HRATE3 |
914 ENET_SERDES_PLL_FBDIV0;
915 switch (np->port) {
916 case 0:
917 reset_val = ENET_SERDES_RESET_0;
918 ctrl_reg = ENET_SERDES_0_CTRL_CFG;
919 test_cfg_reg = ENET_SERDES_0_TEST_CFG;
920 pll_cfg = ENET_SERDES_0_PLL_CFG;
921 break;
922 case 1:
923 reset_val = ENET_SERDES_RESET_1;
924 ctrl_reg = ENET_SERDES_1_CTRL_CFG;
925 test_cfg_reg = ENET_SERDES_1_TEST_CFG;
926 pll_cfg = ENET_SERDES_1_PLL_CFG;
927 break;
928
929 default:
930 return -EINVAL;
931 }
932 ctrl_val = (ENET_SERDES_CTRL_SDET_0 |
933 ENET_SERDES_CTRL_SDET_1 |
934 ENET_SERDES_CTRL_SDET_2 |
935 ENET_SERDES_CTRL_SDET_3 |
936 (0x5 << ENET_SERDES_CTRL_EMPH_0_SHIFT) |
937 (0x5 << ENET_SERDES_CTRL_EMPH_1_SHIFT) |
938 (0x5 << ENET_SERDES_CTRL_EMPH_2_SHIFT) |
939 (0x5 << ENET_SERDES_CTRL_EMPH_3_SHIFT) |
940 (0x1 << ENET_SERDES_CTRL_LADJ_0_SHIFT) |
941 (0x1 << ENET_SERDES_CTRL_LADJ_1_SHIFT) |
942 (0x1 << ENET_SERDES_CTRL_LADJ_2_SHIFT) |
943 (0x1 << ENET_SERDES_CTRL_LADJ_3_SHIFT));
944 test_cfg_val = 0;
945
946 if (lp->loopback_mode == LOOPBACK_PHY) {
947 test_cfg_val |= ((ENET_TEST_MD_PAD_LOOPBACK <<
948 ENET_SERDES_TEST_MD_0_SHIFT) |
949 (ENET_TEST_MD_PAD_LOOPBACK <<
950 ENET_SERDES_TEST_MD_1_SHIFT) |
951 (ENET_TEST_MD_PAD_LOOPBACK <<
952 ENET_SERDES_TEST_MD_2_SHIFT) |
953 (ENET_TEST_MD_PAD_LOOPBACK <<
954 ENET_SERDES_TEST_MD_3_SHIFT));
955 }
956
957 nw64(ENET_SERDES_RESET, reset_val);
958 mdelay(20);
959 val_rd = nr64(ENET_SERDES_RESET);
960 val_rd &= ~reset_val;
961 nw64(pll_cfg, val);
962 nw64(ctrl_reg, ctrl_val);
963 nw64(test_cfg_reg, test_cfg_val);
964 nw64(ENET_SERDES_RESET, val_rd);
965 mdelay(2000);
966
967 /* Initialize all 4 lanes of the SERDES. */
968 for (i = 0; i < 4; i++) {
969 u32 rxtx_ctrl, glue0;
970
971 err = esr_read_rxtx_ctrl(np, i, &rxtx_ctrl);
972 if (err)
973 return err;
974 err = esr_read_glue0(np, i, &glue0);
975 if (err)
976 return err;
977
978 rxtx_ctrl &= ~(ESR_RXTX_CTRL_VMUXLO);
979 rxtx_ctrl |= (ESR_RXTX_CTRL_ENSTRETCH |
980 (2 << ESR_RXTX_CTRL_VMUXLO_SHIFT));
981
982 glue0 &= ~(ESR_GLUE_CTRL0_SRATE |
983 ESR_GLUE_CTRL0_THCNT |
984 ESR_GLUE_CTRL0_BLTIME);
985 glue0 |= (ESR_GLUE_CTRL0_RXLOSENAB |
986 (0xf << ESR_GLUE_CTRL0_SRATE_SHIFT) |
987 (0xff << ESR_GLUE_CTRL0_THCNT_SHIFT) |
988 (BLTIME_300_CYCLES <<
989 ESR_GLUE_CTRL0_BLTIME_SHIFT));
990
991 err = esr_write_rxtx_ctrl(np, i, rxtx_ctrl);
992 if (err)
993 return err;
994 err = esr_write_glue0(np, i, glue0);
995 if (err)
996 return err;
997 }
998
999
1000 sig = nr64(ESR_INT_SIGNALS);
1001 switch (np->port) {
1002 case 0:
1003 val = (ESR_INT_SRDY0_P0 | ESR_INT_DET0_P0);
1004 mask = val;
1005 break;
1006
1007 case 1:
1008 val = (ESR_INT_SRDY0_P1 | ESR_INT_DET0_P1);
1009 mask = val;
1010 break;
1011
1012 default:
1013 return -EINVAL;
1014 }
1015
1016 if ((sig & mask) != val) {
1017 netdev_err(np->dev, "Port %u signal bits [%08x] are not [%08x]\n",
1018 np->port, (int)(sig & mask), (int)val);
1019 return -ENODEV;
1020 }
1021
1022 return 0;
1023 }
1024
1025 static int link_status_1g_serdes(struct niu *np, int *link_up_p)
1026 {
1027 struct niu_link_config *lp = &np->link_config;
1028 int link_up;
1029 u64 val;
1030 u16 current_speed;
1031 unsigned long flags;
1032 u8 current_duplex;
1033
1034 link_up = 0;
1035 current_speed = SPEED_INVALID;
1036 current_duplex = DUPLEX_INVALID;
1037
1038 spin_lock_irqsave(&np->lock, flags);
1039
1040 val = nr64_pcs(PCS_MII_STAT);
1041
1042 if (val & PCS_MII_STAT_LINK_STATUS) {
1043 link_up = 1;
1044 current_speed = SPEED_1000;
1045 current_duplex = DUPLEX_FULL;
1046 }
1047
1048 lp->active_speed = current_speed;
1049 lp->active_duplex = current_duplex;
1050 spin_unlock_irqrestore(&np->lock, flags);
1051
1052 *link_up_p = link_up;
1053 return 0;
1054 }
1055
1056 static int link_status_10g_serdes(struct niu *np, int *link_up_p)
1057 {
1058 unsigned long flags;
1059 struct niu_link_config *lp = &np->link_config;
1060 int link_up = 0;
1061 int link_ok = 1;
1062 u64 val, val2;
1063 u16 current_speed;
1064 u8 current_duplex;
1065
1066 if (!(np->flags & NIU_FLAGS_10G))
1067 return link_status_1g_serdes(np, link_up_p);
1068
1069 current_speed = SPEED_INVALID;
1070 current_duplex = DUPLEX_INVALID;
1071 spin_lock_irqsave(&np->lock, flags);
1072
1073 val = nr64_xpcs(XPCS_STATUS(0));
1074 val2 = nr64_mac(XMAC_INTER2);
1075 if (val2 & 0x01000000)
1076 link_ok = 0;
1077
1078 if ((val & 0x1000ULL) && link_ok) {
1079 link_up = 1;
1080 current_speed = SPEED_10000;
1081 current_duplex = DUPLEX_FULL;
1082 }
1083 lp->active_speed = current_speed;
1084 lp->active_duplex = current_duplex;
1085 spin_unlock_irqrestore(&np->lock, flags);
1086 *link_up_p = link_up;
1087 return 0;
1088 }
1089
1090 static int link_status_mii(struct niu *np, int *link_up_p)
1091 {
1092 struct niu_link_config *lp = &np->link_config;
1093 int err;
1094 int bmsr, advert, ctrl1000, stat1000, lpa, bmcr, estatus;
1095 int supported, advertising, active_speed, active_duplex;
1096
1097 err = mii_read(np, np->phy_addr, MII_BMCR);
1098 if (unlikely(err < 0))
1099 return err;
1100 bmcr = err;
1101
1102 err = mii_read(np, np->phy_addr, MII_BMSR);
1103 if (unlikely(err < 0))
1104 return err;
1105 bmsr = err;
1106
1107 err = mii_read(np, np->phy_addr, MII_ADVERTISE);
1108 if (unlikely(err < 0))
1109 return err;
1110 advert = err;
1111
1112 err = mii_read(np, np->phy_addr, MII_LPA);
1113 if (unlikely(err < 0))
1114 return err;
1115 lpa = err;
1116
1117 if (likely(bmsr & BMSR_ESTATEN)) {
1118 err = mii_read(np, np->phy_addr, MII_ESTATUS);
1119 if (unlikely(err < 0))
1120 return err;
1121 estatus = err;
1122
1123 err = mii_read(np, np->phy_addr, MII_CTRL1000);
1124 if (unlikely(err < 0))
1125 return err;
1126 ctrl1000 = err;
1127
1128 err = mii_read(np, np->phy_addr, MII_STAT1000);
1129 if (unlikely(err < 0))
1130 return err;
1131 stat1000 = err;
1132 } else
1133 estatus = ctrl1000 = stat1000 = 0;
1134
1135 supported = 0;
1136 if (bmsr & BMSR_ANEGCAPABLE)
1137 supported |= SUPPORTED_Autoneg;
1138 if (bmsr & BMSR_10HALF)
1139 supported |= SUPPORTED_10baseT_Half;
1140 if (bmsr & BMSR_10FULL)
1141 supported |= SUPPORTED_10baseT_Full;
1142 if (bmsr & BMSR_100HALF)
1143 supported |= SUPPORTED_100baseT_Half;
1144 if (bmsr & BMSR_100FULL)
1145 supported |= SUPPORTED_100baseT_Full;
1146 if (estatus & ESTATUS_1000_THALF)
1147 supported |= SUPPORTED_1000baseT_Half;
1148 if (estatus & ESTATUS_1000_TFULL)
1149 supported |= SUPPORTED_1000baseT_Full;
1150 lp->supported = supported;
1151
1152 advertising = 0;
1153 if (advert & ADVERTISE_10HALF)
1154 advertising |= ADVERTISED_10baseT_Half;
1155 if (advert & ADVERTISE_10FULL)
1156 advertising |= ADVERTISED_10baseT_Full;
1157 if (advert & ADVERTISE_100HALF)
1158 advertising |= ADVERTISED_100baseT_Half;
1159 if (advert & ADVERTISE_100FULL)
1160 advertising |= ADVERTISED_100baseT_Full;
1161 if (ctrl1000 & ADVERTISE_1000HALF)
1162 advertising |= ADVERTISED_1000baseT_Half;
1163 if (ctrl1000 & ADVERTISE_1000FULL)
1164 advertising |= ADVERTISED_1000baseT_Full;
1165
1166 if (bmcr & BMCR_ANENABLE) {
1167 int neg, neg1000;
1168
1169 lp->active_autoneg = 1;
1170 advertising |= ADVERTISED_Autoneg;
1171
1172 neg = advert & lpa;
1173 neg1000 = (ctrl1000 << 2) & stat1000;
1174
1175 if (neg1000 & (LPA_1000FULL | LPA_1000HALF))
1176 active_speed = SPEED_1000;
1177 else if (neg & LPA_100)
1178 active_speed = SPEED_100;
1179 else if (neg & (LPA_10HALF | LPA_10FULL))
1180 active_speed = SPEED_10;
1181 else
1182 active_speed = SPEED_INVALID;
1183
1184 if ((neg1000 & LPA_1000FULL) || (neg & LPA_DUPLEX))
1185 active_duplex = DUPLEX_FULL;
1186 else if (active_speed != SPEED_INVALID)
1187 active_duplex = DUPLEX_HALF;
1188 else
1189 active_duplex = DUPLEX_INVALID;
1190 } else {
1191 lp->active_autoneg = 0;
1192
1193 if ((bmcr & BMCR_SPEED1000) && !(bmcr & BMCR_SPEED100))
1194 active_speed = SPEED_1000;
1195 else if (bmcr & BMCR_SPEED100)
1196 active_speed = SPEED_100;
1197 else
1198 active_speed = SPEED_10;
1199
1200 if (bmcr & BMCR_FULLDPLX)
1201 active_duplex = DUPLEX_FULL;
1202 else
1203 active_duplex = DUPLEX_HALF;
1204 }
1205
1206 lp->active_advertising = advertising;
1207 lp->active_speed = active_speed;
1208 lp->active_duplex = active_duplex;
1209 *link_up_p = !!(bmsr & BMSR_LSTATUS);
1210
1211 return 0;
1212 }
1213
1214 static int link_status_1g_rgmii(struct niu *np, int *link_up_p)
1215 {
1216 struct niu_link_config *lp = &np->link_config;
1217 u16 current_speed, bmsr;
1218 unsigned long flags;
1219 u8 current_duplex;
1220 int err, link_up;
1221
1222 link_up = 0;
1223 current_speed = SPEED_INVALID;
1224 current_duplex = DUPLEX_INVALID;
1225
1226 spin_lock_irqsave(&np->lock, flags);
1227
1228 err = -EINVAL;
1229
1230 err = mii_read(np, np->phy_addr, MII_BMSR);
1231 if (err < 0)
1232 goto out;
1233
1234 bmsr = err;
1235 if (bmsr & BMSR_LSTATUS) {
1236 u16 adv, lpa, common, estat;
1237
1238 err = mii_read(np, np->phy_addr, MII_ADVERTISE);
1239 if (err < 0)
1240 goto out;
1241 adv = err;
1242
1243 err = mii_read(np, np->phy_addr, MII_LPA);
1244 if (err < 0)
1245 goto out;
1246 lpa = err;
1247
1248 common = adv & lpa;
1249
1250 err = mii_read(np, np->phy_addr, MII_ESTATUS);
1251 if (err < 0)
1252 goto out;
1253 estat = err;
1254 link_up = 1;
1255 current_speed = SPEED_1000;
1256 current_duplex = DUPLEX_FULL;
1257
1258 }
1259 lp->active_speed = current_speed;
1260 lp->active_duplex = current_duplex;
1261 err = 0;
1262
1263 out:
1264 spin_unlock_irqrestore(&np->lock, flags);
1265
1266 *link_up_p = link_up;
1267 return err;
1268 }
1269
1270 static int link_status_1g(struct niu *np, int *link_up_p)
1271 {
1272 struct niu_link_config *lp = &np->link_config;
1273 unsigned long flags;
1274 int err;
1275
1276 spin_lock_irqsave(&np->lock, flags);
1277
1278 err = link_status_mii(np, link_up_p);
1279 lp->supported |= SUPPORTED_TP;
1280 lp->active_advertising |= ADVERTISED_TP;
1281
1282 spin_unlock_irqrestore(&np->lock, flags);
1283 return err;
1284 }
1285
1286 static int bcm8704_reset(struct niu *np)
1287 {
1288 int err, limit;
1289
1290 err = mdio_read(np, np->phy_addr,
1291 BCM8704_PHYXS_DEV_ADDR, MII_BMCR);
1292 if (err < 0 || err == 0xffff)
1293 return err;
1294 err |= BMCR_RESET;
1295 err = mdio_write(np, np->phy_addr, BCM8704_PHYXS_DEV_ADDR,
1296 MII_BMCR, err);
1297 if (err)
1298 return err;
1299
1300 limit = 1000;
1301 while (--limit >= 0) {
1302 err = mdio_read(np, np->phy_addr,
1303 BCM8704_PHYXS_DEV_ADDR, MII_BMCR);
1304 if (err < 0)
1305 return err;
1306 if (!(err & BMCR_RESET))
1307 break;
1308 }
1309 if (limit < 0) {
1310 netdev_err(np->dev, "Port %u PHY will not reset (bmcr=%04x)\n",
1311 np->port, (err & 0xffff));
1312 return -ENODEV;
1313 }
1314 return 0;
1315 }
1316
1317 /* When written, certain PHY registers need to be read back twice
1318 * in order for the bits to settle properly.
1319 */
1320 static int bcm8704_user_dev3_readback(struct niu *np, int reg)
1321 {
1322 int err = mdio_read(np, np->phy_addr, BCM8704_USER_DEV3_ADDR, reg);
1323 if (err < 0)
1324 return err;
1325 err = mdio_read(np, np->phy_addr, BCM8704_USER_DEV3_ADDR, reg);
1326 if (err < 0)
1327 return err;
1328 return 0;
1329 }
1330
1331 static int bcm8706_init_user_dev3(struct niu *np)
1332 {
1333 int err;
1334
1335
1336 err = mdio_read(np, np->phy_addr, BCM8704_USER_DEV3_ADDR,
1337 BCM8704_USER_OPT_DIGITAL_CTRL);
1338 if (err < 0)
1339 return err;
1340 err &= ~USER_ODIG_CTRL_GPIOS;
1341 err |= (0x3 << USER_ODIG_CTRL_GPIOS_SHIFT);
1342 err |= USER_ODIG_CTRL_RESV2;
1343 err = mdio_write(np, np->phy_addr, BCM8704_USER_DEV3_ADDR,
1344 BCM8704_USER_OPT_DIGITAL_CTRL, err);
1345 if (err)
1346 return err;
1347
1348 mdelay(1000);
1349
1350 return 0;
1351 }
1352
1353 static int bcm8704_init_user_dev3(struct niu *np)
1354 {
1355 int err;
1356
1357 err = mdio_write(np, np->phy_addr,
1358 BCM8704_USER_DEV3_ADDR, BCM8704_USER_CONTROL,
1359 (USER_CONTROL_OPTXRST_LVL |
1360 USER_CONTROL_OPBIASFLT_LVL |
1361 USER_CONTROL_OBTMPFLT_LVL |
1362 USER_CONTROL_OPPRFLT_LVL |
1363 USER_CONTROL_OPTXFLT_LVL |
1364 USER_CONTROL_OPRXLOS_LVL |
1365 USER_CONTROL_OPRXFLT_LVL |
1366 USER_CONTROL_OPTXON_LVL |
1367 (0x3f << USER_CONTROL_RES1_SHIFT)));
1368 if (err)
1369 return err;
1370
1371 err = mdio_write(np, np->phy_addr,
1372 BCM8704_USER_DEV3_ADDR, BCM8704_USER_PMD_TX_CONTROL,
1373 (USER_PMD_TX_CTL_XFP_CLKEN |
1374 (1 << USER_PMD_TX_CTL_TX_DAC_TXD_SH) |
1375 (2 << USER_PMD_TX_CTL_TX_DAC_TXCK_SH) |
1376 USER_PMD_TX_CTL_TSCK_LPWREN));
1377 if (err)
1378 return err;
1379
1380 err = bcm8704_user_dev3_readback(np, BCM8704_USER_CONTROL);
1381 if (err)
1382 return err;
1383 err = bcm8704_user_dev3_readback(np, BCM8704_USER_PMD_TX_CONTROL);
1384 if (err)
1385 return err;
1386
1387 err = mdio_read(np, np->phy_addr, BCM8704_USER_DEV3_ADDR,
1388 BCM8704_USER_OPT_DIGITAL_CTRL);
1389 if (err < 0)
1390 return err;
1391 err &= ~USER_ODIG_CTRL_GPIOS;
1392 err |= (0x3 << USER_ODIG_CTRL_GPIOS_SHIFT);
1393 err = mdio_write(np, np->phy_addr, BCM8704_USER_DEV3_ADDR,
1394 BCM8704_USER_OPT_DIGITAL_CTRL, err);
1395 if (err)
1396 return err;
1397
1398 mdelay(1000);
1399
1400 return 0;
1401 }
1402
1403 static int mrvl88x2011_act_led(struct niu *np, int val)
1404 {
1405 int err;
1406
1407 err = mdio_read(np, np->phy_addr, MRVL88X2011_USER_DEV2_ADDR,
1408 MRVL88X2011_LED_8_TO_11_CTL);
1409 if (err < 0)
1410 return err;
1411
1412 err &= ~MRVL88X2011_LED(MRVL88X2011_LED_ACT,MRVL88X2011_LED_CTL_MASK);
1413 err |= MRVL88X2011_LED(MRVL88X2011_LED_ACT,val);
1414
1415 return mdio_write(np, np->phy_addr, MRVL88X2011_USER_DEV2_ADDR,
1416 MRVL88X2011_LED_8_TO_11_CTL, err);
1417 }
1418
1419 static int mrvl88x2011_led_blink_rate(struct niu *np, int rate)
1420 {
1421 int err;
1422
1423 err = mdio_read(np, np->phy_addr, MRVL88X2011_USER_DEV2_ADDR,
1424 MRVL88X2011_LED_BLINK_CTL);
1425 if (err >= 0) {
1426 err &= ~MRVL88X2011_LED_BLKRATE_MASK;
1427 err |= (rate << 4);
1428
1429 err = mdio_write(np, np->phy_addr, MRVL88X2011_USER_DEV2_ADDR,
1430 MRVL88X2011_LED_BLINK_CTL, err);
1431 }
1432
1433 return err;
1434 }
1435
1436 static int xcvr_init_10g_mrvl88x2011(struct niu *np)
1437 {
1438 int err;
1439
1440 /* Set LED functions */
1441 err = mrvl88x2011_led_blink_rate(np, MRVL88X2011_LED_BLKRATE_134MS);
1442 if (err)
1443 return err;
1444
1445 /* led activity */
1446 err = mrvl88x2011_act_led(np, MRVL88X2011_LED_CTL_OFF);
1447 if (err)
1448 return err;
1449
1450 err = mdio_read(np, np->phy_addr, MRVL88X2011_USER_DEV3_ADDR,
1451 MRVL88X2011_GENERAL_CTL);
1452 if (err < 0)
1453 return err;
1454
1455 err |= MRVL88X2011_ENA_XFPREFCLK;
1456
1457 err = mdio_write(np, np->phy_addr, MRVL88X2011_USER_DEV3_ADDR,
1458 MRVL88X2011_GENERAL_CTL, err);
1459 if (err < 0)
1460 return err;
1461
1462 err = mdio_read(np, np->phy_addr, MRVL88X2011_USER_DEV1_ADDR,
1463 MRVL88X2011_PMA_PMD_CTL_1);
1464 if (err < 0)
1465 return err;
1466
1467 if (np->link_config.loopback_mode == LOOPBACK_MAC)
1468 err |= MRVL88X2011_LOOPBACK;
1469 else
1470 err &= ~MRVL88X2011_LOOPBACK;
1471
1472 err = mdio_write(np, np->phy_addr, MRVL88X2011_USER_DEV1_ADDR,
1473 MRVL88X2011_PMA_PMD_CTL_1, err);
1474 if (err < 0)
1475 return err;
1476
1477 /* Enable PMD */
1478 return mdio_write(np, np->phy_addr, MRVL88X2011_USER_DEV1_ADDR,
1479 MRVL88X2011_10G_PMD_TX_DIS, MRVL88X2011_ENA_PMDTX);
1480 }
1481
1482
1483 static int xcvr_diag_bcm870x(struct niu *np)
1484 {
1485 u16 analog_stat0, tx_alarm_status;
1486 int err = 0;
1487
1488 #if 1
1489 err = mdio_read(np, np->phy_addr, BCM8704_PMA_PMD_DEV_ADDR,
1490 MII_STAT1000);
1491 if (err < 0)
1492 return err;
1493 pr_info("Port %u PMA_PMD(MII_STAT1000) [%04x]\n", np->port, err);
1494
1495 err = mdio_read(np, np->phy_addr, BCM8704_USER_DEV3_ADDR, 0x20);
1496 if (err < 0)
1497 return err;
1498 pr_info("Port %u USER_DEV3(0x20) [%04x]\n", np->port, err);
1499
1500 err = mdio_read(np, np->phy_addr, BCM8704_PHYXS_DEV_ADDR,
1501 MII_NWAYTEST);
1502 if (err < 0)
1503 return err;
1504 pr_info("Port %u PHYXS(MII_NWAYTEST) [%04x]\n", np->port, err);
1505 #endif
1506
1507 /* XXX dig this out it might not be so useful XXX */
1508 err = mdio_read(np, np->phy_addr, BCM8704_USER_DEV3_ADDR,
1509 BCM8704_USER_ANALOG_STATUS0);
1510 if (err < 0)
1511 return err;
1512 err = mdio_read(np, np->phy_addr, BCM8704_USER_DEV3_ADDR,
1513 BCM8704_USER_ANALOG_STATUS0);
1514 if (err < 0)
1515 return err;
1516 analog_stat0 = err;
1517
1518 err = mdio_read(np, np->phy_addr, BCM8704_USER_DEV3_ADDR,
1519 BCM8704_USER_TX_ALARM_STATUS);
1520 if (err < 0)
1521 return err;
1522 err = mdio_read(np, np->phy_addr, BCM8704_USER_DEV3_ADDR,
1523 BCM8704_USER_TX_ALARM_STATUS);
1524 if (err < 0)
1525 return err;
1526 tx_alarm_status = err;
1527
1528 if (analog_stat0 != 0x03fc) {
1529 if ((analog_stat0 == 0x43bc) && (tx_alarm_status != 0)) {
1530 pr_info("Port %u cable not connected or bad cable\n",
1531 np->port);
1532 } else if (analog_stat0 == 0x639c) {
1533 pr_info("Port %u optical module is bad or missing\n",
1534 np->port);
1535 }
1536 }
1537
1538 return 0;
1539 }
1540
1541 static int xcvr_10g_set_lb_bcm870x(struct niu *np)
1542 {
1543 struct niu_link_config *lp = &np->link_config;
1544 int err;
1545
1546 err = mdio_read(np, np->phy_addr, BCM8704_PCS_DEV_ADDR,
1547 MII_BMCR);
1548 if (err < 0)
1549 return err;
1550
1551 err &= ~BMCR_LOOPBACK;
1552
1553 if (lp->loopback_mode == LOOPBACK_MAC)
1554 err |= BMCR_LOOPBACK;
1555
1556 err = mdio_write(np, np->phy_addr, BCM8704_PCS_DEV_ADDR,
1557 MII_BMCR, err);
1558 if (err)
1559 return err;
1560
1561 return 0;
1562 }
1563
1564 static int xcvr_init_10g_bcm8706(struct niu *np)
1565 {
1566 int err = 0;
1567 u64 val;
1568
1569 if ((np->flags & NIU_FLAGS_HOTPLUG_PHY) &&
1570 (np->flags & NIU_FLAGS_HOTPLUG_PHY_PRESENT) == 0)
1571 return err;
1572
1573 val = nr64_mac(XMAC_CONFIG);
1574 val &= ~XMAC_CONFIG_LED_POLARITY;
1575 val |= XMAC_CONFIG_FORCE_LED_ON;
1576 nw64_mac(XMAC_CONFIG, val);
1577
1578 val = nr64(MIF_CONFIG);
1579 val |= MIF_CONFIG_INDIRECT_MODE;
1580 nw64(MIF_CONFIG, val);
1581
1582 err = bcm8704_reset(np);
1583 if (err)
1584 return err;
1585
1586 err = xcvr_10g_set_lb_bcm870x(np);
1587 if (err)
1588 return err;
1589
1590 err = bcm8706_init_user_dev3(np);
1591 if (err)
1592 return err;
1593
1594 err = xcvr_diag_bcm870x(np);
1595 if (err)
1596 return err;
1597
1598 return 0;
1599 }
1600
1601 static int xcvr_init_10g_bcm8704(struct niu *np)
1602 {
1603 int err;
1604
1605 err = bcm8704_reset(np);
1606 if (err)
1607 return err;
1608
1609 err = bcm8704_init_user_dev3(np);
1610 if (err)
1611 return err;
1612
1613 err = xcvr_10g_set_lb_bcm870x(np);
1614 if (err)
1615 return err;
1616
1617 err = xcvr_diag_bcm870x(np);
1618 if (err)
1619 return err;
1620
1621 return 0;
1622 }
1623
1624 static int xcvr_init_10g(struct niu *np)
1625 {
1626 int phy_id, err;
1627 u64 val;
1628
1629 val = nr64_mac(XMAC_CONFIG);
1630 val &= ~XMAC_CONFIG_LED_POLARITY;
1631 val |= XMAC_CONFIG_FORCE_LED_ON;
1632 nw64_mac(XMAC_CONFIG, val);
1633
1634 /* XXX shared resource, lock parent XXX */
1635 val = nr64(MIF_CONFIG);
1636 val |= MIF_CONFIG_INDIRECT_MODE;
1637 nw64(MIF_CONFIG, val);
1638
1639 phy_id = phy_decode(np->parent->port_phy, np->port);
1640 phy_id = np->parent->phy_probe_info.phy_id[phy_id][np->port];
1641
1642 /* handle different phy types */
1643 switch (phy_id & NIU_PHY_ID_MASK) {
1644 case NIU_PHY_ID_MRVL88X2011:
1645 err = xcvr_init_10g_mrvl88x2011(np);
1646 break;
1647
1648 default: /* bcom 8704 */
1649 err = xcvr_init_10g_bcm8704(np);
1650 break;
1651 }
1652
1653 return 0;
1654 }
1655
1656 static int mii_reset(struct niu *np)
1657 {
1658 int limit, err;
1659
1660 err = mii_write(np, np->phy_addr, MII_BMCR, BMCR_RESET);
1661 if (err)
1662 return err;
1663
1664 limit = 1000;
1665 while (--limit >= 0) {
1666 udelay(500);
1667 err = mii_read(np, np->phy_addr, MII_BMCR);
1668 if (err < 0)
1669 return err;
1670 if (!(err & BMCR_RESET))
1671 break;
1672 }
1673 if (limit < 0) {
1674 netdev_err(np->dev, "Port %u MII would not reset, bmcr[%04x]\n",
1675 np->port, err);
1676 return -ENODEV;
1677 }
1678
1679 return 0;
1680 }
1681
1682 static int xcvr_init_1g_rgmii(struct niu *np)
1683 {
1684 int err;
1685 u64 val;
1686 u16 bmcr, bmsr, estat;
1687
1688 val = nr64(MIF_CONFIG);
1689 val &= ~MIF_CONFIG_INDIRECT_MODE;
1690 nw64(MIF_CONFIG, val);
1691
1692 err = mii_reset(np);
1693 if (err)
1694 return err;
1695
1696 err = mii_read(np, np->phy_addr, MII_BMSR);
1697 if (err < 0)
1698 return err;
1699 bmsr = err;
1700
1701 estat = 0;
1702 if (bmsr & BMSR_ESTATEN) {
1703 err = mii_read(np, np->phy_addr, MII_ESTATUS);
1704 if (err < 0)
1705 return err;
1706 estat = err;
1707 }
1708
1709 bmcr = 0;
1710 err = mii_write(np, np->phy_addr, MII_BMCR, bmcr);
1711 if (err)
1712 return err;
1713
1714 if (bmsr & BMSR_ESTATEN) {
1715 u16 ctrl1000 = 0;
1716
1717 if (estat & ESTATUS_1000_TFULL)
1718 ctrl1000 |= ADVERTISE_1000FULL;
1719 err = mii_write(np, np->phy_addr, MII_CTRL1000, ctrl1000);
1720 if (err)
1721 return err;
1722 }
1723
1724 bmcr = (BMCR_SPEED1000 | BMCR_FULLDPLX);
1725
1726 err = mii_write(np, np->phy_addr, MII_BMCR, bmcr);
1727 if (err)
1728 return err;
1729
1730 err = mii_read(np, np->phy_addr, MII_BMCR);
1731 if (err < 0)
1732 return err;
1733 bmcr = mii_read(np, np->phy_addr, MII_BMCR);
1734
1735 err = mii_read(np, np->phy_addr, MII_BMSR);
1736 if (err < 0)
1737 return err;
1738
1739 return 0;
1740 }
1741
1742 static int mii_init_common(struct niu *np)
1743 {
1744 struct niu_link_config *lp = &np->link_config;
1745 u16 bmcr, bmsr, adv, estat;
1746 int err;
1747
1748 err = mii_reset(np);
1749 if (err)
1750 return err;
1751
1752 err = mii_read(np, np->phy_addr, MII_BMSR);
1753 if (err < 0)
1754 return err;
1755 bmsr = err;
1756
1757 estat = 0;
1758 if (bmsr & BMSR_ESTATEN) {
1759 err = mii_read(np, np->phy_addr, MII_ESTATUS);
1760 if (err < 0)
1761 return err;
1762 estat = err;
1763 }
1764
1765 bmcr = 0;
1766 err = mii_write(np, np->phy_addr, MII_BMCR, bmcr);
1767 if (err)
1768 return err;
1769
1770 if (lp->loopback_mode == LOOPBACK_MAC) {
1771 bmcr |= BMCR_LOOPBACK;
1772 if (lp->active_speed == SPEED_1000)
1773 bmcr |= BMCR_SPEED1000;
1774 if (lp->active_duplex == DUPLEX_FULL)
1775 bmcr |= BMCR_FULLDPLX;
1776 }
1777
1778 if (lp->loopback_mode == LOOPBACK_PHY) {
1779 u16 aux;
1780
1781 aux = (BCM5464R_AUX_CTL_EXT_LB |
1782 BCM5464R_AUX_CTL_WRITE_1);
1783 err = mii_write(np, np->phy_addr, BCM5464R_AUX_CTL, aux);
1784 if (err)
1785 return err;
1786 }
1787
1788 if (lp->autoneg) {
1789 u16 ctrl1000;
1790
1791 adv = ADVERTISE_CSMA | ADVERTISE_PAUSE_CAP;
1792 if ((bmsr & BMSR_10HALF) &&
1793 (lp->advertising & ADVERTISED_10baseT_Half))
1794 adv |= ADVERTISE_10HALF;
1795 if ((bmsr & BMSR_10FULL) &&
1796 (lp->advertising & ADVERTISED_10baseT_Full))
1797 adv |= ADVERTISE_10FULL;
1798 if ((bmsr & BMSR_100HALF) &&
1799 (lp->advertising & ADVERTISED_100baseT_Half))
1800 adv |= ADVERTISE_100HALF;
1801 if ((bmsr & BMSR_100FULL) &&
1802 (lp->advertising & ADVERTISED_100baseT_Full))
1803 adv |= ADVERTISE_100FULL;
1804 err = mii_write(np, np->phy_addr, MII_ADVERTISE, adv);
1805 if (err)
1806 return err;
1807
1808 if (likely(bmsr & BMSR_ESTATEN)) {
1809 ctrl1000 = 0;
1810 if ((estat & ESTATUS_1000_THALF) &&
1811 (lp->advertising & ADVERTISED_1000baseT_Half))
1812 ctrl1000 |= ADVERTISE_1000HALF;
1813 if ((estat & ESTATUS_1000_TFULL) &&
1814 (lp->advertising & ADVERTISED_1000baseT_Full))
1815 ctrl1000 |= ADVERTISE_1000FULL;
1816 err = mii_write(np, np->phy_addr,
1817 MII_CTRL1000, ctrl1000);
1818 if (err)
1819 return err;
1820 }
1821
1822 bmcr |= (BMCR_ANENABLE | BMCR_ANRESTART);
1823 } else {
1824 /* !lp->autoneg */
1825 int fulldpx;
1826
1827 if (lp->duplex == DUPLEX_FULL) {
1828 bmcr |= BMCR_FULLDPLX;
1829 fulldpx = 1;
1830 } else if (lp->duplex == DUPLEX_HALF)
1831 fulldpx = 0;
1832 else
1833 return -EINVAL;
1834
1835 if (lp->speed == SPEED_1000) {
1836 /* if X-full requested while not supported, or
1837 X-half requested while not supported... */
1838 if ((fulldpx && !(estat & ESTATUS_1000_TFULL)) ||
1839 (!fulldpx && !(estat & ESTATUS_1000_THALF)))
1840 return -EINVAL;
1841 bmcr |= BMCR_SPEED1000;
1842 } else if (lp->speed == SPEED_100) {
1843 if ((fulldpx && !(bmsr & BMSR_100FULL)) ||
1844 (!fulldpx && !(bmsr & BMSR_100HALF)))
1845 return -EINVAL;
1846 bmcr |= BMCR_SPEED100;
1847 } else if (lp->speed == SPEED_10) {
1848 if ((fulldpx && !(bmsr & BMSR_10FULL)) ||
1849 (!fulldpx && !(bmsr & BMSR_10HALF)))
1850 return -EINVAL;
1851 } else
1852 return -EINVAL;
1853 }
1854
1855 err = mii_write(np, np->phy_addr, MII_BMCR, bmcr);
1856 if (err)
1857 return err;
1858
1859 #if 0
1860 err = mii_read(np, np->phy_addr, MII_BMCR);
1861 if (err < 0)
1862 return err;
1863 bmcr = err;
1864
1865 err = mii_read(np, np->phy_addr, MII_BMSR);
1866 if (err < 0)
1867 return err;
1868 bmsr = err;
1869
1870 pr_info("Port %u after MII init bmcr[%04x] bmsr[%04x]\n",
1871 np->port, bmcr, bmsr);
1872 #endif
1873
1874 return 0;
1875 }
1876
1877 static int xcvr_init_1g(struct niu *np)
1878 {
1879 u64 val;
1880
1881 /* XXX shared resource, lock parent XXX */
1882 val = nr64(MIF_CONFIG);
1883 val &= ~MIF_CONFIG_INDIRECT_MODE;
1884 nw64(MIF_CONFIG, val);
1885
1886 return mii_init_common(np);
1887 }
1888
1889 static int niu_xcvr_init(struct niu *np)
1890 {
1891 const struct niu_phy_ops *ops = np->phy_ops;
1892 int err;
1893
1894 err = 0;
1895 if (ops->xcvr_init)
1896 err = ops->xcvr_init(np);
1897
1898 return err;
1899 }
1900
1901 static int niu_serdes_init(struct niu *np)
1902 {
1903 const struct niu_phy_ops *ops = np->phy_ops;
1904 int err;
1905
1906 err = 0;
1907 if (ops->serdes_init)
1908 err = ops->serdes_init(np);
1909
1910 return err;
1911 }
1912
1913 static void niu_init_xif(struct niu *);
1914 static void niu_handle_led(struct niu *, int status);
1915
1916 static int niu_link_status_common(struct niu *np, int link_up)
1917 {
1918 struct niu_link_config *lp = &np->link_config;
1919 struct net_device *dev = np->dev;
1920 unsigned long flags;
1921
1922 if (!netif_carrier_ok(dev) && link_up) {
1923 netif_info(np, link, dev, "Link is up at %s, %s duplex\n",
1924 lp->active_speed == SPEED_10000 ? "10Gb/sec" :
1925 lp->active_speed == SPEED_1000 ? "1Gb/sec" :
1926 lp->active_speed == SPEED_100 ? "100Mbit/sec" :
1927 "10Mbit/sec",
1928 lp->active_duplex == DUPLEX_FULL ? "full" : "half");
1929
1930 spin_lock_irqsave(&np->lock, flags);
1931 niu_init_xif(np);
1932 niu_handle_led(np, 1);
1933 spin_unlock_irqrestore(&np->lock, flags);
1934
1935 netif_carrier_on(dev);
1936 } else if (netif_carrier_ok(dev) && !link_up) {
1937 netif_warn(np, link, dev, "Link is down\n");
1938 spin_lock_irqsave(&np->lock, flags);
1939 niu_handle_led(np, 0);
1940 spin_unlock_irqrestore(&np->lock, flags);
1941 netif_carrier_off(dev);
1942 }
1943
1944 return 0;
1945 }
1946
1947 static int link_status_10g_mrvl(struct niu *np, int *link_up_p)
1948 {
1949 int err, link_up, pma_status, pcs_status;
1950
1951 link_up = 0;
1952
1953 err = mdio_read(np, np->phy_addr, MRVL88X2011_USER_DEV1_ADDR,
1954 MRVL88X2011_10G_PMD_STATUS_2);
1955 if (err < 0)
1956 goto out;
1957
1958 /* Check PMA/PMD Register: 1.0001.2 == 1 */
1959 err = mdio_read(np, np->phy_addr, MRVL88X2011_USER_DEV1_ADDR,
1960 MRVL88X2011_PMA_PMD_STATUS_1);
1961 if (err < 0)
1962 goto out;
1963
1964 pma_status = ((err & MRVL88X2011_LNK_STATUS_OK) ? 1 : 0);
1965
1966 /* Check PMC Register : 3.0001.2 == 1: read twice */
1967 err = mdio_read(np, np->phy_addr, MRVL88X2011_USER_DEV3_ADDR,
1968 MRVL88X2011_PMA_PMD_STATUS_1);
1969 if (err < 0)
1970 goto out;
1971
1972 err = mdio_read(np, np->phy_addr, MRVL88X2011_USER_DEV3_ADDR,
1973 MRVL88X2011_PMA_PMD_STATUS_1);
1974 if (err < 0)
1975 goto out;
1976
1977 pcs_status = ((err & MRVL88X2011_LNK_STATUS_OK) ? 1 : 0);
1978
1979 /* Check XGXS Register : 4.0018.[0-3,12] */
1980 err = mdio_read(np, np->phy_addr, MRVL88X2011_USER_DEV4_ADDR,
1981 MRVL88X2011_10G_XGXS_LANE_STAT);
1982 if (err < 0)
1983 goto out;
1984
1985 if (err == (PHYXS_XGXS_LANE_STAT_ALINGED | PHYXS_XGXS_LANE_STAT_LANE3 |
1986 PHYXS_XGXS_LANE_STAT_LANE2 | PHYXS_XGXS_LANE_STAT_LANE1 |
1987 PHYXS_XGXS_LANE_STAT_LANE0 | PHYXS_XGXS_LANE_STAT_MAGIC |
1988 0x800))
1989 link_up = (pma_status && pcs_status) ? 1 : 0;
1990
1991 np->link_config.active_speed = SPEED_10000;
1992 np->link_config.active_duplex = DUPLEX_FULL;
1993 err = 0;
1994 out:
1995 mrvl88x2011_act_led(np, (link_up ?
1996 MRVL88X2011_LED_CTL_PCS_ACT :
1997 MRVL88X2011_LED_CTL_OFF));
1998
1999 *link_up_p = link_up;
2000 return err;
2001 }
2002
2003 static int link_status_10g_bcm8706(struct niu *np, int *link_up_p)
2004 {
2005 int err, link_up;
2006 link_up = 0;
2007
2008 err = mdio_read(np, np->phy_addr, BCM8704_PMA_PMD_DEV_ADDR,
2009 BCM8704_PMD_RCV_SIGDET);
2010 if (err < 0 || err == 0xffff)
2011 goto out;
2012 if (!(err & PMD_RCV_SIGDET_GLOBAL)) {
2013 err = 0;
2014 goto out;
2015 }
2016
2017 err = mdio_read(np, np->phy_addr, BCM8704_PCS_DEV_ADDR,
2018 BCM8704_PCS_10G_R_STATUS);
2019 if (err < 0)
2020 goto out;
2021
2022 if (!(err & PCS_10G_R_STATUS_BLK_LOCK)) {
2023 err = 0;
2024 goto out;
2025 }
2026
2027 err = mdio_read(np, np->phy_addr, BCM8704_PHYXS_DEV_ADDR,
2028 BCM8704_PHYXS_XGXS_LANE_STAT);
2029 if (err < 0)
2030 goto out;
2031 if (err != (PHYXS_XGXS_LANE_STAT_ALINGED |
2032 PHYXS_XGXS_LANE_STAT_MAGIC |
2033 PHYXS_XGXS_LANE_STAT_PATTEST |
2034 PHYXS_XGXS_LANE_STAT_LANE3 |
2035 PHYXS_XGXS_LANE_STAT_LANE2 |
2036 PHYXS_XGXS_LANE_STAT_LANE1 |
2037 PHYXS_XGXS_LANE_STAT_LANE0)) {
2038 err = 0;
2039 np->link_config.active_speed = SPEED_INVALID;
2040 np->link_config.active_duplex = DUPLEX_INVALID;
2041 goto out;
2042 }
2043
2044 link_up = 1;
2045 np->link_config.active_speed = SPEED_10000;
2046 np->link_config.active_duplex = DUPLEX_FULL;
2047 err = 0;
2048
2049 out:
2050 *link_up_p = link_up;
2051 return err;
2052 }
2053
2054 static int link_status_10g_bcom(struct niu *np, int *link_up_p)
2055 {
2056 int err, link_up;
2057
2058 link_up = 0;
2059
2060 err = mdio_read(np, np->phy_addr, BCM8704_PMA_PMD_DEV_ADDR,
2061 BCM8704_PMD_RCV_SIGDET);
2062 if (err < 0)
2063 goto out;
2064 if (!(err & PMD_RCV_SIGDET_GLOBAL)) {
2065 err = 0;
2066 goto out;
2067 }
2068
2069 err = mdio_read(np, np->phy_addr, BCM8704_PCS_DEV_ADDR,
2070 BCM8704_PCS_10G_R_STATUS);
2071 if (err < 0)
2072 goto out;
2073 if (!(err & PCS_10G_R_STATUS_BLK_LOCK)) {
2074 err = 0;
2075 goto out;
2076 }
2077
2078 err = mdio_read(np, np->phy_addr, BCM8704_PHYXS_DEV_ADDR,
2079 BCM8704_PHYXS_XGXS_LANE_STAT);
2080 if (err < 0)
2081 goto out;
2082
2083 if (err != (PHYXS_XGXS_LANE_STAT_ALINGED |
2084 PHYXS_XGXS_LANE_STAT_MAGIC |
2085 PHYXS_XGXS_LANE_STAT_LANE3 |
2086 PHYXS_XGXS_LANE_STAT_LANE2 |
2087 PHYXS_XGXS_LANE_STAT_LANE1 |
2088 PHYXS_XGXS_LANE_STAT_LANE0)) {
2089 err = 0;
2090 goto out;
2091 }
2092
2093 link_up = 1;
2094 np->link_config.active_speed = SPEED_10000;
2095 np->link_config.active_duplex = DUPLEX_FULL;
2096 err = 0;
2097
2098 out:
2099 *link_up_p = link_up;
2100 return err;
2101 }
2102
2103 static int link_status_10g(struct niu *np, int *link_up_p)
2104 {
2105 unsigned long flags;
2106 int err = -EINVAL;
2107
2108 spin_lock_irqsave(&np->lock, flags);
2109
2110 if (np->link_config.loopback_mode == LOOPBACK_DISABLED) {
2111 int phy_id;
2112
2113 phy_id = phy_decode(np->parent->port_phy, np->port);
2114 phy_id = np->parent->phy_probe_info.phy_id[phy_id][np->port];
2115
2116 /* handle different phy types */
2117 switch (phy_id & NIU_PHY_ID_MASK) {
2118 case NIU_PHY_ID_MRVL88X2011:
2119 err = link_status_10g_mrvl(np, link_up_p);
2120 break;
2121
2122 default: /* bcom 8704 */
2123 err = link_status_10g_bcom(np, link_up_p);
2124 break;
2125 }
2126 }
2127
2128 spin_unlock_irqrestore(&np->lock, flags);
2129
2130 return err;
2131 }
2132
2133 static int niu_10g_phy_present(struct niu *np)
2134 {
2135 u64 sig, mask, val;
2136
2137 sig = nr64(ESR_INT_SIGNALS);
2138 switch (np->port) {
2139 case 0:
2140 mask = ESR_INT_SIGNALS_P0_BITS;
2141 val = (ESR_INT_SRDY0_P0 |
2142 ESR_INT_DET0_P0 |
2143 ESR_INT_XSRDY_P0 |
2144 ESR_INT_XDP_P0_CH3 |
2145 ESR_INT_XDP_P0_CH2 |
2146 ESR_INT_XDP_P0_CH1 |
2147 ESR_INT_XDP_P0_CH0);
2148 break;
2149
2150 case 1:
2151 mask = ESR_INT_SIGNALS_P1_BITS;
2152 val = (ESR_INT_SRDY0_P1 |
2153 ESR_INT_DET0_P1 |
2154 ESR_INT_XSRDY_P1 |
2155 ESR_INT_XDP_P1_CH3 |
2156 ESR_INT_XDP_P1_CH2 |
2157 ESR_INT_XDP_P1_CH1 |
2158 ESR_INT_XDP_P1_CH0);
2159 break;
2160
2161 default:
2162 return 0;
2163 }
2164
2165 if ((sig & mask) != val)
2166 return 0;
2167 return 1;
2168 }
2169
2170 static int link_status_10g_hotplug(struct niu *np, int *link_up_p)
2171 {
2172 unsigned long flags;
2173 int err = 0;
2174 int phy_present;
2175 int phy_present_prev;
2176
2177 spin_lock_irqsave(&np->lock, flags);
2178
2179 if (np->link_config.loopback_mode == LOOPBACK_DISABLED) {
2180 phy_present_prev = (np->flags & NIU_FLAGS_HOTPLUG_PHY_PRESENT) ?
2181 1 : 0;
2182 phy_present = niu_10g_phy_present(np);
2183 if (phy_present != phy_present_prev) {
2184 /* state change */
2185 if (phy_present) {
2186 /* A NEM was just plugged in */
2187 np->flags |= NIU_FLAGS_HOTPLUG_PHY_PRESENT;
2188 if (np->phy_ops->xcvr_init)
2189 err = np->phy_ops->xcvr_init(np);
2190 if (err) {
2191 err = mdio_read(np, np->phy_addr,
2192 BCM8704_PHYXS_DEV_ADDR, MII_BMCR);
2193 if (err == 0xffff) {
2194 /* No mdio, back-to-back XAUI */
2195 goto out;
2196 }
2197 /* debounce */
2198 np->flags &= ~NIU_FLAGS_HOTPLUG_PHY_PRESENT;
2199 }
2200 } else {
2201 np->flags &= ~NIU_FLAGS_HOTPLUG_PHY_PRESENT;
2202 *link_up_p = 0;
2203 netif_warn(np, link, np->dev,
2204 "Hotplug PHY Removed\n");
2205 }
2206 }
2207 out:
2208 if (np->flags & NIU_FLAGS_HOTPLUG_PHY_PRESENT) {
2209 err = link_status_10g_bcm8706(np, link_up_p);
2210 if (err == 0xffff) {
2211 /* No mdio, back-to-back XAUI: it is C10NEM */
2212 *link_up_p = 1;
2213 np->link_config.active_speed = SPEED_10000;
2214 np->link_config.active_duplex = DUPLEX_FULL;
2215 }
2216 }
2217 }
2218
2219 spin_unlock_irqrestore(&np->lock, flags);
2220
2221 return 0;
2222 }
2223
2224 static int niu_link_status(struct niu *np, int *link_up_p)
2225 {
2226 const struct niu_phy_ops *ops = np->phy_ops;
2227 int err;
2228
2229 err = 0;
2230 if (ops->link_status)
2231 err = ops->link_status(np, link_up_p);
2232
2233 return err;
2234 }
2235
2236 static void niu_timer(unsigned long __opaque)
2237 {
2238 struct niu *np = (struct niu *) __opaque;
2239 unsigned long off;
2240 int err, link_up;
2241
2242 err = niu_link_status(np, &link_up);
2243 if (!err)
2244 niu_link_status_common(np, link_up);
2245
2246 if (netif_carrier_ok(np->dev))
2247 off = 5 * HZ;
2248 else
2249 off = 1 * HZ;
2250 np->timer.expires = jiffies + off;
2251
2252 add_timer(&np->timer);
2253 }
2254
2255 static const struct niu_phy_ops phy_ops_10g_serdes = {
2256 .serdes_init = serdes_init_10g_serdes,
2257 .link_status = link_status_10g_serdes,
2258 };
2259
2260 static const struct niu_phy_ops phy_ops_10g_serdes_niu = {
2261 .serdes_init = serdes_init_niu_10g_serdes,
2262 .link_status = link_status_10g_serdes,
2263 };
2264
2265 static const struct niu_phy_ops phy_ops_1g_serdes_niu = {
2266 .serdes_init = serdes_init_niu_1g_serdes,
2267 .link_status = link_status_1g_serdes,
2268 };
2269
2270 static const struct niu_phy_ops phy_ops_1g_rgmii = {
2271 .xcvr_init = xcvr_init_1g_rgmii,
2272 .link_status = link_status_1g_rgmii,
2273 };
2274
2275 static const struct niu_phy_ops phy_ops_10g_fiber_niu = {
2276 .serdes_init = serdes_init_niu_10g_fiber,
2277 .xcvr_init = xcvr_init_10g,
2278 .link_status = link_status_10g,
2279 };
2280
2281 static const struct niu_phy_ops phy_ops_10g_fiber = {
2282 .serdes_init = serdes_init_10g,
2283 .xcvr_init = xcvr_init_10g,
2284 .link_status = link_status_10g,
2285 };
2286
2287 static const struct niu_phy_ops phy_ops_10g_fiber_hotplug = {
2288 .serdes_init = serdes_init_10g,
2289 .xcvr_init = xcvr_init_10g_bcm8706,
2290 .link_status = link_status_10g_hotplug,
2291 };
2292
2293 static const struct niu_phy_ops phy_ops_niu_10g_hotplug = {
2294 .serdes_init = serdes_init_niu_10g_fiber,
2295 .xcvr_init = xcvr_init_10g_bcm8706,
2296 .link_status = link_status_10g_hotplug,
2297 };
2298
2299 static const struct niu_phy_ops phy_ops_10g_copper = {
2300 .serdes_init = serdes_init_10g,
2301 .link_status = link_status_10g, /* XXX */
2302 };
2303
2304 static const struct niu_phy_ops phy_ops_1g_fiber = {
2305 .serdes_init = serdes_init_1g,
2306 .xcvr_init = xcvr_init_1g,
2307 .link_status = link_status_1g,
2308 };
2309
2310 static const struct niu_phy_ops phy_ops_1g_copper = {
2311 .xcvr_init = xcvr_init_1g,
2312 .link_status = link_status_1g,
2313 };
2314
2315 struct niu_phy_template {
2316 const struct niu_phy_ops *ops;
2317 u32 phy_addr_base;
2318 };
2319
2320 static const struct niu_phy_template phy_template_niu_10g_fiber = {
2321 .ops = &phy_ops_10g_fiber_niu,
2322 .phy_addr_base = 16,
2323 };
2324
2325 static const struct niu_phy_template phy_template_niu_10g_serdes = {
2326 .ops = &phy_ops_10g_serdes_niu,
2327 .phy_addr_base = 0,
2328 };
2329
2330 static const struct niu_phy_template phy_template_niu_1g_serdes = {
2331 .ops = &phy_ops_1g_serdes_niu,
2332 .phy_addr_base = 0,
2333 };
2334
2335 static const struct niu_phy_template phy_template_10g_fiber = {
2336 .ops = &phy_ops_10g_fiber,
2337 .phy_addr_base = 8,
2338 };
2339
2340 static const struct niu_phy_template phy_template_10g_fiber_hotplug = {
2341 .ops = &phy_ops_10g_fiber_hotplug,
2342 .phy_addr_base = 8,
2343 };
2344
2345 static const struct niu_phy_template phy_template_niu_10g_hotplug = {
2346 .ops = &phy_ops_niu_10g_hotplug,
2347 .phy_addr_base = 8,
2348 };
2349
2350 static const struct niu_phy_template phy_template_10g_copper = {
2351 .ops = &phy_ops_10g_copper,
2352 .phy_addr_base = 10,
2353 };
2354
2355 static const struct niu_phy_template phy_template_1g_fiber = {
2356 .ops = &phy_ops_1g_fiber,
2357 .phy_addr_base = 0,
2358 };
2359
2360 static const struct niu_phy_template phy_template_1g_copper = {
2361 .ops = &phy_ops_1g_copper,
2362 .phy_addr_base = 0,
2363 };
2364
2365 static const struct niu_phy_template phy_template_1g_rgmii = {
2366 .ops = &phy_ops_1g_rgmii,
2367 .phy_addr_base = 0,
2368 };
2369
2370 static const struct niu_phy_template phy_template_10g_serdes = {
2371 .ops = &phy_ops_10g_serdes,
2372 .phy_addr_base = 0,
2373 };
2374
2375 static int niu_atca_port_num[4] = {
2376 0, 0, 11, 10
2377 };
2378
2379 static int serdes_init_10g_serdes(struct niu *np)
2380 {
2381 struct niu_link_config *lp = &np->link_config;
2382 unsigned long ctrl_reg, test_cfg_reg, pll_cfg, i;
2383 u64 ctrl_val, test_cfg_val, sig, mask, val;
2384 u64 reset_val;
2385
2386 switch (np->port) {
2387 case 0:
2388 reset_val = ENET_SERDES_RESET_0;
2389 ctrl_reg = ENET_SERDES_0_CTRL_CFG;
2390 test_cfg_reg = ENET_SERDES_0_TEST_CFG;
2391 pll_cfg = ENET_SERDES_0_PLL_CFG;
2392 break;
2393 case 1:
2394 reset_val = ENET_SERDES_RESET_1;
2395 ctrl_reg = ENET_SERDES_1_CTRL_CFG;
2396 test_cfg_reg = ENET_SERDES_1_TEST_CFG;
2397 pll_cfg = ENET_SERDES_1_PLL_CFG;
2398 break;
2399
2400 default:
2401 return -EINVAL;
2402 }
2403 ctrl_val = (ENET_SERDES_CTRL_SDET_0 |
2404 ENET_SERDES_CTRL_SDET_1 |
2405 ENET_SERDES_CTRL_SDET_2 |
2406 ENET_SERDES_CTRL_SDET_3 |
2407 (0x5 << ENET_SERDES_CTRL_EMPH_0_SHIFT) |
2408 (0x5 << ENET_SERDES_CTRL_EMPH_1_SHIFT) |
2409 (0x5 << ENET_SERDES_CTRL_EMPH_2_SHIFT) |
2410 (0x5 << ENET_SERDES_CTRL_EMPH_3_SHIFT) |
2411 (0x1 << ENET_SERDES_CTRL_LADJ_0_SHIFT) |
2412 (0x1 << ENET_SERDES_CTRL_LADJ_1_SHIFT) |
2413 (0x1 << ENET_SERDES_CTRL_LADJ_2_SHIFT) |
2414 (0x1 << ENET_SERDES_CTRL_LADJ_3_SHIFT));
2415 test_cfg_val = 0;
2416
2417 if (lp->loopback_mode == LOOPBACK_PHY) {
2418 test_cfg_val |= ((ENET_TEST_MD_PAD_LOOPBACK <<
2419 ENET_SERDES_TEST_MD_0_SHIFT) |
2420 (ENET_TEST_MD_PAD_LOOPBACK <<
2421 ENET_SERDES_TEST_MD_1_SHIFT) |
2422 (ENET_TEST_MD_PAD_LOOPBACK <<
2423 ENET_SERDES_TEST_MD_2_SHIFT) |
2424 (ENET_TEST_MD_PAD_LOOPBACK <<
2425 ENET_SERDES_TEST_MD_3_SHIFT));
2426 }
2427
2428 esr_reset(np);
2429 nw64(pll_cfg, ENET_SERDES_PLL_FBDIV2);
2430 nw64(ctrl_reg, ctrl_val);
2431 nw64(test_cfg_reg, test_cfg_val);
2432
2433 /* Initialize all 4 lanes of the SERDES. */
2434 for (i = 0; i < 4; i++) {
2435 u32 rxtx_ctrl, glue0;
2436 int err;
2437
2438 err = esr_read_rxtx_ctrl(np, i, &rxtx_ctrl);
2439 if (err)
2440 return err;
2441 err = esr_read_glue0(np, i, &glue0);
2442 if (err)
2443 return err;
2444
2445 rxtx_ctrl &= ~(ESR_RXTX_CTRL_VMUXLO);
2446 rxtx_ctrl |= (ESR_RXTX_CTRL_ENSTRETCH |
2447 (2 << ESR_RXTX_CTRL_VMUXLO_SHIFT));
2448
2449 glue0 &= ~(ESR_GLUE_CTRL0_SRATE |
2450 ESR_GLUE_CTRL0_THCNT |
2451 ESR_GLUE_CTRL0_BLTIME);
2452 glue0 |= (ESR_GLUE_CTRL0_RXLOSENAB |
2453 (0xf << ESR_GLUE_CTRL0_SRATE_SHIFT) |
2454 (0xff << ESR_GLUE_CTRL0_THCNT_SHIFT) |
2455 (BLTIME_300_CYCLES <<
2456 ESR_GLUE_CTRL0_BLTIME_SHIFT));
2457
2458 err = esr_write_rxtx_ctrl(np, i, rxtx_ctrl);
2459 if (err)
2460 return err;
2461 err = esr_write_glue0(np, i, glue0);
2462 if (err)
2463 return err;
2464 }
2465
2466
2467 sig = nr64(ESR_INT_SIGNALS);
2468 switch (np->port) {
2469 case 0:
2470 mask = ESR_INT_SIGNALS_P0_BITS;
2471 val = (ESR_INT_SRDY0_P0 |
2472 ESR_INT_DET0_P0 |
2473 ESR_INT_XSRDY_P0 |
2474 ESR_INT_XDP_P0_CH3 |
2475 ESR_INT_XDP_P0_CH2 |
2476 ESR_INT_XDP_P0_CH1 |
2477 ESR_INT_XDP_P0_CH0);
2478 break;
2479
2480 case 1:
2481 mask = ESR_INT_SIGNALS_P1_BITS;
2482 val = (ESR_INT_SRDY0_P1 |
2483 ESR_INT_DET0_P1 |
2484 ESR_INT_XSRDY_P1 |
2485 ESR_INT_XDP_P1_CH3 |
2486 ESR_INT_XDP_P1_CH2 |
2487 ESR_INT_XDP_P1_CH1 |
2488 ESR_INT_XDP_P1_CH0);
2489 break;
2490
2491 default:
2492 return -EINVAL;
2493 }
2494
2495 if ((sig & mask) != val) {
2496 int err;
2497 err = serdes_init_1g_serdes(np);
2498 if (!err) {
2499 np->flags &= ~NIU_FLAGS_10G;
2500 np->mac_xcvr = MAC_XCVR_PCS;
2501 } else {
2502 netdev_err(np->dev, "Port %u 10G/1G SERDES Link Failed\n",
2503 np->port);
2504 return -ENODEV;
2505 }
2506 }
2507
2508 return 0;
2509 }
2510
2511 static int niu_determine_phy_disposition(struct niu *np)
2512 {
2513 struct niu_parent *parent = np->parent;
2514 u8 plat_type = parent->plat_type;
2515 const struct niu_phy_template *tp;
2516 u32 phy_addr_off = 0;
2517
2518 if (plat_type == PLAT_TYPE_NIU) {
2519 switch (np->flags &
2520 (NIU_FLAGS_10G |
2521 NIU_FLAGS_FIBER |
2522 NIU_FLAGS_XCVR_SERDES)) {
2523 case NIU_FLAGS_10G | NIU_FLAGS_XCVR_SERDES:
2524 /* 10G Serdes */
2525 tp = &phy_template_niu_10g_serdes;
2526 break;
2527 case NIU_FLAGS_XCVR_SERDES:
2528 /* 1G Serdes */
2529 tp = &phy_template_niu_1g_serdes;
2530 break;
2531 case NIU_FLAGS_10G | NIU_FLAGS_FIBER:
2532 /* 10G Fiber */
2533 default:
2534 if (np->flags & NIU_FLAGS_HOTPLUG_PHY) {
2535 tp = &phy_template_niu_10g_hotplug;
2536 if (np->port == 0)
2537 phy_addr_off = 8;
2538 if (np->port == 1)
2539 phy_addr_off = 12;
2540 } else {
2541 tp = &phy_template_niu_10g_fiber;
2542 phy_addr_off += np->port;
2543 }
2544 break;
2545 }
2546 } else {
2547 switch (np->flags &
2548 (NIU_FLAGS_10G |
2549 NIU_FLAGS_FIBER |
2550 NIU_FLAGS_XCVR_SERDES)) {
2551 case 0:
2552 /* 1G copper */
2553 tp = &phy_template_1g_copper;
2554 if (plat_type == PLAT_TYPE_VF_P0)
2555 phy_addr_off = 10;
2556 else if (plat_type == PLAT_TYPE_VF_P1)
2557 phy_addr_off = 26;
2558
2559 phy_addr_off += (np->port ^ 0x3);
2560 break;
2561
2562 case NIU_FLAGS_10G:
2563 /* 10G copper */
2564 tp = &phy_template_10g_copper;
2565 break;
2566
2567 case NIU_FLAGS_FIBER:
2568 /* 1G fiber */
2569 tp = &phy_template_1g_fiber;
2570 break;
2571
2572 case NIU_FLAGS_10G | NIU_FLAGS_FIBER:
2573 /* 10G fiber */
2574 tp = &phy_template_10g_fiber;
2575 if (plat_type == PLAT_TYPE_VF_P0 ||
2576 plat_type == PLAT_TYPE_VF_P1)
2577 phy_addr_off = 8;
2578 phy_addr_off += np->port;
2579 if (np->flags & NIU_FLAGS_HOTPLUG_PHY) {
2580 tp = &phy_template_10g_fiber_hotplug;
2581 if (np->port == 0)
2582 phy_addr_off = 8;
2583 if (np->port == 1)
2584 phy_addr_off = 12;
2585 }
2586 break;
2587
2588 case NIU_FLAGS_10G | NIU_FLAGS_XCVR_SERDES:
2589 case NIU_FLAGS_XCVR_SERDES | NIU_FLAGS_FIBER:
2590 case NIU_FLAGS_XCVR_SERDES:
2591 switch(np->port) {
2592 case 0:
2593 case 1:
2594 tp = &phy_template_10g_serdes;
2595 break;
2596 case 2:
2597 case 3:
2598 tp = &phy_template_1g_rgmii;
2599 break;
2600 default:
2601 return -EINVAL;
2602 break;
2603 }
2604 phy_addr_off = niu_atca_port_num[np->port];
2605 break;
2606
2607 default:
2608 return -EINVAL;
2609 }
2610 }
2611
2612 np->phy_ops = tp->ops;
2613 np->phy_addr = tp->phy_addr_base + phy_addr_off;
2614
2615 return 0;
2616 }
2617
2618 static int niu_init_link(struct niu *np)
2619 {
2620 struct niu_parent *parent = np->parent;
2621 int err, ignore;
2622
2623 if (parent->plat_type == PLAT_TYPE_NIU) {
2624 err = niu_xcvr_init(np);
2625 if (err)
2626 return err;
2627 msleep(200);
2628 }
2629 err = niu_serdes_init(np);
2630 if (err && !(np->flags & NIU_FLAGS_HOTPLUG_PHY))
2631 return err;
2632 msleep(200);
2633 err = niu_xcvr_init(np);
2634 if (!err || (np->flags & NIU_FLAGS_HOTPLUG_PHY))
2635 niu_link_status(np, &ignore);
2636 return 0;
2637 }
2638
2639 static void niu_set_primary_mac(struct niu *np, unsigned char *addr)
2640 {
2641 u16 reg0 = addr[4] << 8 | addr[5];
2642 u16 reg1 = addr[2] << 8 | addr[3];
2643 u16 reg2 = addr[0] << 8 | addr[1];
2644
2645 if (np->flags & NIU_FLAGS_XMAC) {
2646 nw64_mac(XMAC_ADDR0, reg0);
2647 nw64_mac(XMAC_ADDR1, reg1);
2648 nw64_mac(XMAC_ADDR2, reg2);
2649 } else {
2650 nw64_mac(BMAC_ADDR0, reg0);
2651 nw64_mac(BMAC_ADDR1, reg1);
2652 nw64_mac(BMAC_ADDR2, reg2);
2653 }
2654 }
2655
2656 static int niu_num_alt_addr(struct niu *np)
2657 {
2658 if (np->flags & NIU_FLAGS_XMAC)
2659 return XMAC_NUM_ALT_ADDR;
2660 else
2661 return BMAC_NUM_ALT_ADDR;
2662 }
2663
2664 static int niu_set_alt_mac(struct niu *np, int index, unsigned char *addr)
2665 {
2666 u16 reg0 = addr[4] << 8 | addr[5];
2667 u16 reg1 = addr[2] << 8 | addr[3];
2668 u16 reg2 = addr[0] << 8 | addr[1];
2669
2670 if (index >= niu_num_alt_addr(np))
2671 return -EINVAL;
2672
2673 if (np->flags & NIU_FLAGS_XMAC) {
2674 nw64_mac(XMAC_ALT_ADDR0(index), reg0);
2675 nw64_mac(XMAC_ALT_ADDR1(index), reg1);
2676 nw64_mac(XMAC_ALT_ADDR2(index), reg2);
2677 } else {
2678 nw64_mac(BMAC_ALT_ADDR0(index), reg0);
2679 nw64_mac(BMAC_ALT_ADDR1(index), reg1);
2680 nw64_mac(BMAC_ALT_ADDR2(index), reg2);
2681 }
2682
2683 return 0;
2684 }
2685
2686 static int niu_enable_alt_mac(struct niu *np, int index, int on)
2687 {
2688 unsigned long reg;
2689 u64 val, mask;
2690
2691 if (index >= niu_num_alt_addr(np))
2692 return -EINVAL;
2693
2694 if (np->flags & NIU_FLAGS_XMAC) {
2695 reg = XMAC_ADDR_CMPEN;
2696 mask = 1 << index;
2697 } else {
2698 reg = BMAC_ADDR_CMPEN;
2699 mask = 1 << (index + 1);
2700 }
2701
2702 val = nr64_mac(reg);
2703 if (on)
2704 val |= mask;
2705 else
2706 val &= ~mask;
2707 nw64_mac(reg, val);
2708
2709 return 0;
2710 }
2711
2712 static void __set_rdc_table_num_hw(struct niu *np, unsigned long reg,
2713 int num, int mac_pref)
2714 {
2715 u64 val = nr64_mac(reg);
2716 val &= ~(HOST_INFO_MACRDCTBLN | HOST_INFO_MPR);
2717 val |= num;
2718 if (mac_pref)
2719 val |= HOST_INFO_MPR;
2720 nw64_mac(reg, val);
2721 }
2722
2723 static int __set_rdc_table_num(struct niu *np,
2724 int xmac_index, int bmac_index,
2725 int rdc_table_num, int mac_pref)
2726 {
2727 unsigned long reg;
2728
2729 if (rdc_table_num & ~HOST_INFO_MACRDCTBLN)
2730 return -EINVAL;
2731 if (np->flags & NIU_FLAGS_XMAC)
2732 reg = XMAC_HOST_INFO(xmac_index);
2733 else
2734 reg = BMAC_HOST_INFO(bmac_index);
2735 __set_rdc_table_num_hw(np, reg, rdc_table_num, mac_pref);
2736 return 0;
2737 }
2738
2739 static int niu_set_primary_mac_rdc_table(struct niu *np, int table_num,
2740 int mac_pref)
2741 {
2742 return __set_rdc_table_num(np, 17, 0, table_num, mac_pref);
2743 }
2744
2745 static int niu_set_multicast_mac_rdc_table(struct niu *np, int table_num,
2746 int mac_pref)
2747 {
2748 return __set_rdc_table_num(np, 16, 8, table_num, mac_pref);
2749 }
2750
2751 static int niu_set_alt_mac_rdc_table(struct niu *np, int idx,
2752 int table_num, int mac_pref)
2753 {
2754 if (idx >= niu_num_alt_addr(np))
2755 return -EINVAL;
2756 return __set_rdc_table_num(np, idx, idx + 1, table_num, mac_pref);
2757 }
2758
2759 static u64 vlan_entry_set_parity(u64 reg_val)
2760 {
2761 u64 port01_mask;
2762 u64 port23_mask;
2763
2764 port01_mask = 0x00ff;
2765 port23_mask = 0xff00;
2766
2767 if (hweight64(reg_val & port01_mask) & 1)
2768 reg_val |= ENET_VLAN_TBL_PARITY0;
2769 else
2770 reg_val &= ~ENET_VLAN_TBL_PARITY0;
2771
2772 if (hweight64(reg_val & port23_mask) & 1)
2773 reg_val |= ENET_VLAN_TBL_PARITY1;
2774 else
2775 reg_val &= ~ENET_VLAN_TBL_PARITY1;
2776
2777 return reg_val;
2778 }
2779
2780 static void vlan_tbl_write(struct niu *np, unsigned long index,
2781 int port, int vpr, int rdc_table)
2782 {
2783 u64 reg_val = nr64(ENET_VLAN_TBL(index));
2784
2785 reg_val &= ~((ENET_VLAN_TBL_VPR |
2786 ENET_VLAN_TBL_VLANRDCTBLN) <<
2787 ENET_VLAN_TBL_SHIFT(port));
2788 if (vpr)
2789 reg_val |= (ENET_VLAN_TBL_VPR <<
2790 ENET_VLAN_TBL_SHIFT(port));
2791 reg_val |= (rdc_table << ENET_VLAN_TBL_SHIFT(port));
2792
2793 reg_val = vlan_entry_set_parity(reg_val);
2794
2795 nw64(ENET_VLAN_TBL(index), reg_val);
2796 }
2797
2798 static void vlan_tbl_clear(struct niu *np)
2799 {
2800 int i;
2801
2802 for (i = 0; i < ENET_VLAN_TBL_NUM_ENTRIES; i++)
2803 nw64(ENET_VLAN_TBL(i), 0);
2804 }
2805
2806 static int tcam_wait_bit(struct niu *np, u64 bit)
2807 {
2808 int limit = 1000;
2809
2810 while (--limit > 0) {
2811 if (nr64(TCAM_CTL) & bit)
2812 break;
2813 udelay(1);
2814 }
2815 if (limit <= 0)
2816 return -ENODEV;
2817
2818 return 0;
2819 }
2820
2821 static int tcam_flush(struct niu *np, int index)
2822 {
2823 nw64(TCAM_KEY_0, 0x00);
2824 nw64(TCAM_KEY_MASK_0, 0xff);
2825 nw64(TCAM_CTL, (TCAM_CTL_RWC_TCAM_WRITE | index));
2826
2827 return tcam_wait_bit(np, TCAM_CTL_STAT);
2828 }
2829
2830 #if 0
2831 static int tcam_read(struct niu *np, int index,
2832 u64 *key, u64 *mask)
2833 {
2834 int err;
2835
2836 nw64(TCAM_CTL, (TCAM_CTL_RWC_TCAM_READ | index));
2837 err = tcam_wait_bit(np, TCAM_CTL_STAT);
2838 if (!err) {
2839 key[0] = nr64(TCAM_KEY_0);
2840 key[1] = nr64(TCAM_KEY_1);
2841 key[2] = nr64(TCAM_KEY_2);
2842 key[3] = nr64(TCAM_KEY_3);
2843 mask[0] = nr64(TCAM_KEY_MASK_0);
2844 mask[1] = nr64(TCAM_KEY_MASK_1);
2845 mask[2] = nr64(TCAM_KEY_MASK_2);
2846 mask[3] = nr64(TCAM_KEY_MASK_3);
2847 }
2848 return err;
2849 }
2850 #endif
2851
2852 static int tcam_write(struct niu *np, int index,
2853 u64 *key, u64 *mask)
2854 {
2855 nw64(TCAM_KEY_0, key[0]);
2856 nw64(TCAM_KEY_1, key[1]);
2857 nw64(TCAM_KEY_2, key[2]);
2858 nw64(TCAM_KEY_3, key[3]);
2859 nw64(TCAM_KEY_MASK_0, mask[0]);
2860 nw64(TCAM_KEY_MASK_1, mask[1]);
2861 nw64(TCAM_KEY_MASK_2, mask[2]);
2862 nw64(TCAM_KEY_MASK_3, mask[3]);
2863 nw64(TCAM_CTL, (TCAM_CTL_RWC_TCAM_WRITE | index));
2864
2865 return tcam_wait_bit(np, TCAM_CTL_STAT);
2866 }
2867
2868 #if 0
2869 static int tcam_assoc_read(struct niu *np, int index, u64 *data)
2870 {
2871 int err;
2872
2873 nw64(TCAM_CTL, (TCAM_CTL_RWC_RAM_READ | index));
2874 err = tcam_wait_bit(np, TCAM_CTL_STAT);
2875 if (!err)
2876 *data = nr64(TCAM_KEY_1);
2877
2878 return err;
2879 }
2880 #endif
2881
2882 static int tcam_assoc_write(struct niu *np, int index, u64 assoc_data)
2883 {
2884 nw64(TCAM_KEY_1, assoc_data);
2885 nw64(TCAM_CTL, (TCAM_CTL_RWC_RAM_WRITE | index));
2886
2887 return tcam_wait_bit(np, TCAM_CTL_STAT);
2888 }
2889
2890 static void tcam_enable(struct niu *np, int on)
2891 {
2892 u64 val = nr64(FFLP_CFG_1);
2893
2894 if (on)
2895 val &= ~FFLP_CFG_1_TCAM_DIS;
2896 else
2897 val |= FFLP_CFG_1_TCAM_DIS;
2898 nw64(FFLP_CFG_1, val);
2899 }
2900
2901 static void tcam_set_lat_and_ratio(struct niu *np, u64 latency, u64 ratio)
2902 {
2903 u64 val = nr64(FFLP_CFG_1);
2904
2905 val &= ~(FFLP_CFG_1_FFLPINITDONE |
2906 FFLP_CFG_1_CAMLAT |
2907 FFLP_CFG_1_CAMRATIO);
2908 val |= (latency << FFLP_CFG_1_CAMLAT_SHIFT);
2909 val |= (ratio << FFLP_CFG_1_CAMRATIO_SHIFT);
2910 nw64(FFLP_CFG_1, val);
2911
2912 val = nr64(FFLP_CFG_1);
2913 val |= FFLP_CFG_1_FFLPINITDONE;
2914 nw64(FFLP_CFG_1, val);
2915 }
2916
2917 static int tcam_user_eth_class_enable(struct niu *np, unsigned long class,
2918 int on)
2919 {
2920 unsigned long reg;
2921 u64 val;
2922
2923 if (class < CLASS_CODE_ETHERTYPE1 ||
2924 class > CLASS_CODE_ETHERTYPE2)
2925 return -EINVAL;
2926
2927 reg = L2_CLS(class - CLASS_CODE_ETHERTYPE1);
2928 val = nr64(reg);
2929 if (on)
2930 val |= L2_CLS_VLD;
2931 else
2932 val &= ~L2_CLS_VLD;
2933 nw64(reg, val);
2934
2935 return 0;
2936 }
2937
2938 #if 0
2939 static int tcam_user_eth_class_set(struct niu *np, unsigned long class,
2940 u64 ether_type)
2941 {
2942 unsigned long reg;
2943 u64 val;
2944
2945 if (class < CLASS_CODE_ETHERTYPE1 ||
2946 class > CLASS_CODE_ETHERTYPE2 ||
2947 (ether_type & ~(u64)0xffff) != 0)
2948 return -EINVAL;
2949
2950 reg = L2_CLS(class - CLASS_CODE_ETHERTYPE1);
2951 val = nr64(reg);
2952 val &= ~L2_CLS_ETYPE;
2953 val |= (ether_type << L2_CLS_ETYPE_SHIFT);
2954 nw64(reg, val);
2955
2956 return 0;
2957 }
2958 #endif
2959
2960 static int tcam_user_ip_class_enable(struct niu *np, unsigned long class,
2961 int on)
2962 {
2963 unsigned long reg;
2964 u64 val;
2965
2966 if (class < CLASS_CODE_USER_PROG1 ||
2967 class > CLASS_CODE_USER_PROG4)
2968 return -EINVAL;
2969
2970 reg = L3_CLS(class - CLASS_CODE_USER_PROG1);
2971 val = nr64(reg);
2972 if (on)
2973 val |= L3_CLS_VALID;
2974 else
2975 val &= ~L3_CLS_VALID;
2976 nw64(reg, val);
2977
2978 return 0;
2979 }
2980
2981 static int tcam_user_ip_class_set(struct niu *np, unsigned long class,
2982 int ipv6, u64 protocol_id,
2983 u64 tos_mask, u64 tos_val)
2984 {
2985 unsigned long reg;
2986 u64 val;
2987
2988 if (class < CLASS_CODE_USER_PROG1 ||
2989 class > CLASS_CODE_USER_PROG4 ||
2990 (protocol_id & ~(u64)0xff) != 0 ||
2991 (tos_mask & ~(u64)0xff) != 0 ||
2992 (tos_val & ~(u64)0xff) != 0)
2993 return -EINVAL;
2994
2995 reg = L3_CLS(class - CLASS_CODE_USER_PROG1);
2996 val = nr64(reg);
2997 val &= ~(L3_CLS_IPVER | L3_CLS_PID |
2998 L3_CLS_TOSMASK | L3_CLS_TOS);
2999 if (ipv6)
3000 val |= L3_CLS_IPVER;
3001 val |= (protocol_id << L3_CLS_PID_SHIFT);
3002 val |= (tos_mask << L3_CLS_TOSMASK_SHIFT);
3003 val |= (tos_val << L3_CLS_TOS_SHIFT);
3004 nw64(reg, val);
3005
3006 return 0;
3007 }
3008
3009 static int tcam_early_init(struct niu *np)
3010 {
3011 unsigned long i;
3012 int err;
3013
3014 tcam_enable(np, 0);
3015 tcam_set_lat_and_ratio(np,
3016 DEFAULT_TCAM_LATENCY,
3017 DEFAULT_TCAM_ACCESS_RATIO);
3018 for (i = CLASS_CODE_ETHERTYPE1; i <= CLASS_CODE_ETHERTYPE2; i++) {
3019 err = tcam_user_eth_class_enable(np, i, 0);
3020 if (err)
3021 return err;
3022 }
3023 for (i = CLASS_CODE_USER_PROG1; i <= CLASS_CODE_USER_PROG4; i++) {
3024 err = tcam_user_ip_class_enable(np, i, 0);
3025 if (err)
3026 return err;
3027 }
3028
3029 return 0;
3030 }
3031
3032 static int tcam_flush_all(struct niu *np)
3033 {
3034 unsigned long i;
3035
3036 for (i = 0; i < np->parent->tcam_num_entries; i++) {
3037 int err = tcam_flush(np, i);
3038 if (err)
3039 return err;
3040 }
3041 return 0;
3042 }
3043
3044 static u64 hash_addr_regval(unsigned long index, unsigned long num_entries)
3045 {
3046 return (u64)index | (num_entries == 1 ? HASH_TBL_ADDR_AUTOINC : 0);
3047 }
3048
3049 #if 0
3050 static int hash_read(struct niu *np, unsigned long partition,
3051 unsigned long index, unsigned long num_entries,
3052 u64 *data)
3053 {
3054 u64 val = hash_addr_regval(index, num_entries);
3055 unsigned long i;
3056
3057 if (partition >= FCRAM_NUM_PARTITIONS ||
3058 index + num_entries > FCRAM_SIZE)
3059 return -EINVAL;
3060
3061 nw64(HASH_TBL_ADDR(partition), val);
3062 for (i = 0; i < num_entries; i++)
3063 data[i] = nr64(HASH_TBL_DATA(partition));
3064
3065 return 0;
3066 }
3067 #endif
3068
3069 static int hash_write(struct niu *np, unsigned long partition,
3070 unsigned long index, unsigned long num_entries,
3071 u64 *data)
3072 {
3073 u64 val = hash_addr_regval(index, num_entries);
3074 unsigned long i;
3075
3076 if (partition >= FCRAM_NUM_PARTITIONS ||
3077 index + (num_entries * 8) > FCRAM_SIZE)
3078 return -EINVAL;
3079
3080 nw64(HASH_TBL_ADDR(partition), val);
3081 for (i = 0; i < num_entries; i++)
3082 nw64(HASH_TBL_DATA(partition), data[i]);
3083
3084 return 0;
3085 }
3086
3087 static void fflp_reset(struct niu *np)
3088 {
3089 u64 val;
3090
3091 nw64(FFLP_CFG_1, FFLP_CFG_1_PIO_FIO_RST);
3092 udelay(10);
3093 nw64(FFLP_CFG_1, 0);
3094
3095 val = FFLP_CFG_1_FCRAMOUTDR_NORMAL | FFLP_CFG_1_FFLPINITDONE;
3096 nw64(FFLP_CFG_1, val);
3097 }
3098
3099 static void fflp_set_timings(struct niu *np)
3100 {
3101 u64 val = nr64(FFLP_CFG_1);
3102
3103 val &= ~FFLP_CFG_1_FFLPINITDONE;
3104 val |= (DEFAULT_FCRAMRATIO << FFLP_CFG_1_FCRAMRATIO_SHIFT);
3105 nw64(FFLP_CFG_1, val);
3106
3107 val = nr64(FFLP_CFG_1);
3108 val |= FFLP_CFG_1_FFLPINITDONE;
3109 nw64(FFLP_CFG_1, val);
3110
3111 val = nr64(FCRAM_REF_TMR);
3112 val &= ~(FCRAM_REF_TMR_MAX | FCRAM_REF_TMR_MIN);
3113 val |= (DEFAULT_FCRAM_REFRESH_MAX << FCRAM_REF_TMR_MAX_SHIFT);
3114 val |= (DEFAULT_FCRAM_REFRESH_MIN << FCRAM_REF_TMR_MIN_SHIFT);
3115 nw64(FCRAM_REF_TMR, val);
3116 }
3117
3118 static int fflp_set_partition(struct niu *np, u64 partition,
3119 u64 mask, u64 base, int enable)
3120 {
3121 unsigned long reg;
3122 u64 val;
3123
3124 if (partition >= FCRAM_NUM_PARTITIONS ||
3125 (mask & ~(u64)0x1f) != 0 ||
3126 (base & ~(u64)0x1f) != 0)
3127 return -EINVAL;
3128
3129 reg = FLW_PRT_SEL(partition);
3130
3131 val = nr64(reg);
3132 val &= ~(FLW_PRT_SEL_EXT | FLW_PRT_SEL_MASK | FLW_PRT_SEL_BASE);
3133 val |= (mask << FLW_PRT_SEL_MASK_SHIFT);
3134 val |= (base << FLW_PRT_SEL_BASE_SHIFT);
3135 if (enable)
3136 val |= FLW_PRT_SEL_EXT;
3137 nw64(reg, val);
3138
3139 return 0;
3140 }
3141
3142 static int fflp_disable_all_partitions(struct niu *np)
3143 {
3144 unsigned long i;
3145
3146 for (i = 0; i < FCRAM_NUM_PARTITIONS; i++) {
3147 int err = fflp_set_partition(np, 0, 0, 0, 0);
3148 if (err)
3149 return err;
3150 }
3151 return 0;
3152 }
3153
3154 static void fflp_llcsnap_enable(struct niu *np, int on)
3155 {
3156 u64 val = nr64(FFLP_CFG_1);
3157
3158 if (on)
3159 val |= FFLP_CFG_1_LLCSNAP;
3160 else
3161 val &= ~FFLP_CFG_1_LLCSNAP;
3162 nw64(FFLP_CFG_1, val);
3163 }
3164
3165 static void fflp_errors_enable(struct niu *np, int on)
3166 {
3167 u64 val = nr64(FFLP_CFG_1);
3168
3169 if (on)
3170 val &= ~FFLP_CFG_1_ERRORDIS;
3171 else
3172 val |= FFLP_CFG_1_ERRORDIS;
3173 nw64(FFLP_CFG_1, val);
3174 }
3175
3176 static int fflp_hash_clear(struct niu *np)
3177 {
3178 struct fcram_hash_ipv4 ent;
3179 unsigned long i;
3180
3181 /* IPV4 hash entry with valid bit clear, rest is don't care. */
3182 memset(&ent, 0, sizeof(ent));
3183 ent.header = HASH_HEADER_EXT;
3184
3185 for (i = 0; i < FCRAM_SIZE; i += sizeof(ent)) {
3186 int err = hash_write(np, 0, i, 1, (u64 *) &ent);
3187 if (err)
3188 return err;
3189 }
3190 return 0;
3191 }
3192
3193 static int fflp_early_init(struct niu *np)
3194 {
3195 struct niu_parent *parent;
3196 unsigned long flags;
3197 int err;
3198
3199 niu_lock_parent(np, flags);
3200
3201 parent = np->parent;
3202 err = 0;
3203 if (!(parent->flags & PARENT_FLGS_CLS_HWINIT)) {
3204 if (np->parent->plat_type != PLAT_TYPE_NIU) {
3205 fflp_reset(np);
3206 fflp_set_timings(np);
3207 err = fflp_disable_all_partitions(np);
3208 if (err) {
3209 netif_printk(np, probe, KERN_DEBUG, np->dev,
3210 "fflp_disable_all_partitions failed, err=%d\n",
3211 err);
3212 goto out;
3213 }
3214 }
3215
3216 err = tcam_early_init(np);
3217 if (err) {
3218 netif_printk(np, probe, KERN_DEBUG, np->dev,
3219 "tcam_early_init failed, err=%d\n", err);
3220 goto out;
3221 }
3222 fflp_llcsnap_enable(np, 1);
3223 fflp_errors_enable(np, 0);
3224 nw64(H1POLY, 0);
3225 nw64(H2POLY, 0);
3226
3227 err = tcam_flush_all(np);
3228 if (err) {
3229 netif_printk(np, probe, KERN_DEBUG, np->dev,
3230 "tcam_flush_all failed, err=%d\n", err);
3231 goto out;
3232 }
3233 if (np->parent->plat_type != PLAT_TYPE_NIU) {
3234 err = fflp_hash_clear(np);
3235 if (err) {
3236 netif_printk(np, probe, KERN_DEBUG, np->dev,
3237 "fflp_hash_clear failed, err=%d\n",
3238 err);
3239 goto out;
3240 }
3241 }
3242
3243 vlan_tbl_clear(np);
3244
3245 parent->flags |= PARENT_FLGS_CLS_HWINIT;
3246 }
3247 out:
3248 niu_unlock_parent(np, flags);
3249 return err;
3250 }
3251
3252 static int niu_set_flow_key(struct niu *np, unsigned long class_code, u64 key)
3253 {
3254 if (class_code < CLASS_CODE_USER_PROG1 ||
3255 class_code > CLASS_CODE_SCTP_IPV6)
3256 return -EINVAL;
3257
3258 nw64(FLOW_KEY(class_code - CLASS_CODE_USER_PROG1), key);
3259 return 0;
3260 }
3261
3262 static int niu_set_tcam_key(struct niu *np, unsigned long class_code, u64 key)
3263 {
3264 if (class_code < CLASS_CODE_USER_PROG1 ||
3265 class_code > CLASS_CODE_SCTP_IPV6)
3266 return -EINVAL;
3267
3268 nw64(TCAM_KEY(class_code - CLASS_CODE_USER_PROG1), key);
3269 return 0;
3270 }
3271
3272 /* Entries for the ports are interleaved in the TCAM */
3273 static u16 tcam_get_index(struct niu *np, u16 idx)
3274 {
3275 /* One entry reserved for IP fragment rule */
3276 if (idx >= (np->clas.tcam_sz - 1))
3277 idx = 0;
3278 return np->clas.tcam_top + ((idx+1) * np->parent->num_ports);
3279 }
3280
3281 static u16 tcam_get_size(struct niu *np)
3282 {
3283 /* One entry reserved for IP fragment rule */
3284 return np->clas.tcam_sz - 1;
3285 }
3286
3287 static u16 tcam_get_valid_entry_cnt(struct niu *np)
3288 {
3289 /* One entry reserved for IP fragment rule */
3290 return np->clas.tcam_valid_entries - 1;
3291 }
3292
3293 static void niu_rx_skb_append(struct sk_buff *skb, struct page *page,
3294 u32 offset, u32 size)
3295 {
3296 int i = skb_shinfo(skb)->nr_frags;
3297 skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
3298
3299 frag->page = page;
3300 frag->page_offset = offset;
3301 frag->size = size;
3302
3303 skb->len += size;
3304 skb->data_len += size;
3305 skb->truesize += size;
3306
3307 skb_shinfo(skb)->nr_frags = i + 1;
3308 }
3309
3310 static unsigned int niu_hash_rxaddr(struct rx_ring_info *rp, u64 a)
3311 {
3312 a >>= PAGE_SHIFT;
3313 a ^= (a >> ilog2(MAX_RBR_RING_SIZE));
3314
3315 return a & (MAX_RBR_RING_SIZE - 1);
3316 }
3317
3318 static struct page *niu_find_rxpage(struct rx_ring_info *rp, u64 addr,
3319 struct page ***link)
3320 {
3321 unsigned int h = niu_hash_rxaddr(rp, addr);
3322 struct page *p, **pp;
3323
3324 addr &= PAGE_MASK;
3325 pp = &rp->rxhash[h];
3326 for (; (p = *pp) != NULL; pp = (struct page **) &p->mapping) {
3327 if (p->index == addr) {
3328 *link = pp;
3329 goto found;
3330 }
3331 }
3332 BUG();
3333
3334 found:
3335 return p;
3336 }
3337
3338 static void niu_hash_page(struct rx_ring_info *rp, struct page *page, u64 base)
3339 {
3340 unsigned int h = niu_hash_rxaddr(rp, base);
3341
3342 page->index = base;
3343 page->mapping = (struct address_space *) rp->rxhash[h];
3344 rp->rxhash[h] = page;
3345 }
3346
3347 static int niu_rbr_add_page(struct niu *np, struct rx_ring_info *rp,
3348 gfp_t mask, int start_index)
3349 {
3350 struct page *page;
3351 u64 addr;
3352 int i;
3353
3354 page = alloc_page(mask);
3355 if (!page)
3356 return -ENOMEM;
3357
3358 addr = np->ops->map_page(np->device, page, 0,
3359 PAGE_SIZE, DMA_FROM_DEVICE);
3360
3361 niu_hash_page(rp, page, addr);
3362 if (rp->rbr_blocks_per_page > 1)
3363 atomic_add(rp->rbr_blocks_per_page - 1,
3364 &compound_head(page)->_count);
3365
3366 for (i = 0; i < rp->rbr_blocks_per_page; i++) {
3367 __le32 *rbr = &rp->rbr[start_index + i];
3368
3369 *rbr = cpu_to_le32(addr >> RBR_DESCR_ADDR_SHIFT);
3370 addr += rp->rbr_block_size;
3371 }
3372
3373 return 0;
3374 }
3375
3376 static void niu_rbr_refill(struct niu *np, struct rx_ring_info *rp, gfp_t mask)
3377 {
3378 int index = rp->rbr_index;
3379
3380 rp->rbr_pending++;
3381 if ((rp->rbr_pending % rp->rbr_blocks_per_page) == 0) {
3382 int err = niu_rbr_add_page(np, rp, mask, index);
3383
3384 if (unlikely(err)) {
3385 rp->rbr_pending--;
3386 return;
3387 }
3388
3389 rp->rbr_index += rp->rbr_blocks_per_page;
3390 BUG_ON(rp->rbr_index > rp->rbr_table_size);
3391 if (rp->rbr_index == rp->rbr_table_size)
3392 rp->rbr_index = 0;
3393
3394 if (rp->rbr_pending >= rp->rbr_kick_thresh) {
3395 nw64(RBR_KICK(rp->rx_channel), rp->rbr_pending);
3396 rp->rbr_pending = 0;
3397 }
3398 }
3399 }
3400
3401 static int niu_rx_pkt_ignore(struct niu *np, struct rx_ring_info *rp)
3402 {
3403 unsigned int index = rp->rcr_index;
3404 int num_rcr = 0;
3405
3406 rp->rx_dropped++;
3407 while (1) {
3408 struct page *page, **link;
3409 u64 addr, val;
3410 u32 rcr_size;
3411
3412 num_rcr++;
3413
3414 val = le64_to_cpup(&rp->rcr[index]);
3415 addr = (val & RCR_ENTRY_PKT_BUF_ADDR) <<
3416 RCR_ENTRY_PKT_BUF_ADDR_SHIFT;
3417 page = niu_find_rxpage(rp, addr, &link);
3418
3419 rcr_size = rp->rbr_sizes[(val & RCR_ENTRY_PKTBUFSZ) >>
3420 RCR_ENTRY_PKTBUFSZ_SHIFT];
3421 if ((page->index + PAGE_SIZE) - rcr_size == addr) {
3422 *link = (struct page *) page->mapping;
3423 np->ops->unmap_page(np->device, page->index,
3424 PAGE_SIZE, DMA_FROM_DEVICE);
3425 page->index = 0;
3426 page->mapping = NULL;
3427 __free_page(page);
3428 rp->rbr_refill_pending++;
3429 }
3430
3431 index = NEXT_RCR(rp, index);
3432 if (!(val & RCR_ENTRY_MULTI))
3433 break;
3434
3435 }
3436 rp->rcr_index = index;
3437
3438 return num_rcr;
3439 }
3440
3441 static int niu_process_rx_pkt(struct napi_struct *napi, struct niu *np,
3442 struct rx_ring_info *rp)
3443 {
3444 unsigned int index = rp->rcr_index;
3445 struct rx_pkt_hdr1 *rh;
3446 struct sk_buff *skb;
3447 int len, num_rcr;
3448
3449 skb = netdev_alloc_skb(np->dev, RX_SKB_ALLOC_SIZE);
3450 if (unlikely(!skb))
3451 return niu_rx_pkt_ignore(np, rp);
3452
3453 num_rcr = 0;
3454 while (1) {
3455 struct page *page, **link;
3456 u32 rcr_size, append_size;
3457 u64 addr, val, off;
3458
3459 num_rcr++;
3460
3461 val = le64_to_cpup(&rp->rcr[index]);
3462
3463 len = (val & RCR_ENTRY_L2_LEN) >>
3464 RCR_ENTRY_L2_LEN_SHIFT;
3465 len -= ETH_FCS_LEN;
3466
3467 addr = (val & RCR_ENTRY_PKT_BUF_ADDR) <<
3468 RCR_ENTRY_PKT_BUF_ADDR_SHIFT;
3469 page = niu_find_rxpage(rp, addr, &link);
3470
3471 rcr_size = rp->rbr_sizes[(val & RCR_ENTRY_PKTBUFSZ) >>
3472 RCR_ENTRY_PKTBUFSZ_SHIFT];
3473
3474 off = addr & ~PAGE_MASK;
3475 append_size = rcr_size;
3476 if (num_rcr == 1) {
3477 int ptype;
3478
3479 ptype = (val >> RCR_ENTRY_PKT_TYPE_SHIFT);
3480 if ((ptype == RCR_PKT_TYPE_TCP ||
3481 ptype == RCR_PKT_TYPE_UDP) &&
3482 !(val & (RCR_ENTRY_NOPORT |
3483 RCR_ENTRY_ERROR)))
3484 skb->ip_summed = CHECKSUM_UNNECESSARY;
3485 else
3486 skb_checksum_none_assert(skb);
3487 } else if (!(val & RCR_ENTRY_MULTI))
3488 append_size = len - skb->len;
3489
3490 niu_rx_skb_append(skb, page, off, append_size);
3491 if ((page->index + rp->rbr_block_size) - rcr_size == addr) {
3492 *link = (struct page *) page->mapping;
3493 np->ops->unmap_page(np->device, page->index,
3494 PAGE_SIZE, DMA_FROM_DEVICE);
3495 page->index = 0;
3496 page->mapping = NULL;
3497 rp->rbr_refill_pending++;
3498 } else
3499 get_page(page);
3500
3501 index = NEXT_RCR(rp, index);
3502 if (!(val & RCR_ENTRY_MULTI))
3503 break;
3504
3505 }
3506 rp->rcr_index = index;
3507
3508 len += sizeof(*rh);
3509 len = min_t(int, len, sizeof(*rh) + VLAN_ETH_HLEN);
3510 __pskb_pull_tail(skb, len);
3511
3512 rh = (struct rx_pkt_hdr1 *) skb->data;
3513 if (np->dev->features & NETIF_F_RXHASH)
3514 skb->rxhash = ((u32)rh->hashval2_0 << 24 |
3515 (u32)rh->hashval2_1 << 16 |
3516 (u32)rh->hashval1_1 << 8 |
3517 (u32)rh->hashval1_2 << 0);
3518 skb_pull(skb, sizeof(*rh));
3519
3520 rp->rx_packets++;
3521 rp->rx_bytes += skb->len;
3522
3523 skb->protocol = eth_type_trans(skb, np->dev);
3524 skb_record_rx_queue(skb, rp->rx_channel);
3525 napi_gro_receive(napi, skb);
3526
3527 return num_rcr;
3528 }
3529
3530 static int niu_rbr_fill(struct niu *np, struct rx_ring_info *rp, gfp_t mask)
3531 {
3532 int blocks_per_page = rp->rbr_blocks_per_page;
3533 int err, index = rp->rbr_index;
3534
3535 err = 0;
3536 while (index < (rp->rbr_table_size - blocks_per_page)) {
3537 err = niu_rbr_add_page(np, rp, mask, index);
3538 if (err)
3539 break;
3540
3541 index += blocks_per_page;
3542 }
3543
3544 rp->rbr_index = index;
3545 return err;
3546 }
3547
3548 static void niu_rbr_free(struct niu *np, struct rx_ring_info *rp)
3549 {
3550 int i;
3551
3552 for (i = 0; i < MAX_RBR_RING_SIZE; i++) {
3553 struct page *page;
3554
3555 page = rp->rxhash[i];
3556 while (page) {
3557 struct page *next = (struct page *) page->mapping;
3558 u64 base = page->index;
3559
3560 np->ops->unmap_page(np->device, base, PAGE_SIZE,
3561 DMA_FROM_DEVICE);
3562 page->index = 0;
3563 page->mapping = NULL;
3564
3565 __free_page(page);
3566
3567 page = next;
3568 }
3569 }
3570
3571 for (i = 0; i < rp->rbr_table_size; i++)
3572 rp->rbr[i] = cpu_to_le32(0);
3573 rp->rbr_index = 0;
3574 }
3575
3576 static int release_tx_packet(struct niu *np, struct tx_ring_info *rp, int idx)
3577 {
3578 struct tx_buff_info *tb = &rp->tx_buffs[idx];
3579 struct sk_buff *skb = tb->skb;
3580 struct tx_pkt_hdr *tp;
3581 u64 tx_flags;
3582 int i, len;
3583
3584 tp = (struct tx_pkt_hdr *) skb->data;
3585 tx_flags = le64_to_cpup(&tp->flags);
3586
3587 rp->tx_packets++;
3588 rp->tx_bytes += (((tx_flags & TXHDR_LEN) >> TXHDR_LEN_SHIFT) -
3589 ((tx_flags & TXHDR_PAD) / 2));
3590
3591 len = skb_headlen(skb);
3592 np->ops->unmap_single(np->device, tb->mapping,
3593 len, DMA_TO_DEVICE);
3594
3595 if (le64_to_cpu(rp->descr[idx]) & TX_DESC_MARK)
3596 rp->mark_pending--;
3597
3598 tb->skb = NULL;
3599 do {
3600 idx = NEXT_TX(rp, idx);
3601 len -= MAX_TX_DESC_LEN;
3602 } while (len > 0);
3603
3604 for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
3605 tb = &rp->tx_buffs[idx];
3606 BUG_ON(tb->skb != NULL);
3607 np->ops->unmap_page(np->device, tb->mapping,
3608 skb_shinfo(skb)->frags[i].size,
3609 DMA_TO_DEVICE);
3610 idx = NEXT_TX(rp, idx);
3611 }
3612
3613 dev_kfree_skb(skb);
3614
3615 return idx;
3616 }
3617
3618 #define NIU_TX_WAKEUP_THRESH(rp) ((rp)->pending / 4)
3619
3620 static void niu_tx_work(struct niu *np, struct tx_ring_info *rp)
3621 {
3622 struct netdev_queue *txq;
3623 u16 pkt_cnt, tmp;
3624 int cons, index;
3625 u64 cs;
3626
3627 index = (rp - np->tx_rings);
3628 txq = netdev_get_tx_queue(np->dev, index);
3629
3630 cs = rp->tx_cs;
3631 if (unlikely(!(cs & (TX_CS_MK | TX_CS_MMK))))
3632 goto out;
3633
3634 tmp = pkt_cnt = (cs & TX_CS_PKT_CNT) >> TX_CS_PKT_CNT_SHIFT;
3635 pkt_cnt = (pkt_cnt - rp->last_pkt_cnt) &
3636 (TX_CS_PKT_CNT >> TX_CS_PKT_CNT_SHIFT);
3637
3638 rp->last_pkt_cnt = tmp;
3639
3640 cons = rp->cons;
3641
3642 netif_printk(np, tx_done, KERN_DEBUG, np->dev,
3643 "%s() pkt_cnt[%u] cons[%d]\n", __func__, pkt_cnt, cons);
3644
3645 while (pkt_cnt--)
3646 cons = release_tx_packet(np, rp, cons);
3647
3648 rp->cons = cons;
3649 smp_mb();
3650
3651 out:
3652 if (unlikely(netif_tx_queue_stopped(txq) &&
3653 (niu_tx_avail(rp) > NIU_TX_WAKEUP_THRESH(rp)))) {
3654 __netif_tx_lock(txq, smp_processor_id());
3655 if (netif_tx_queue_stopped(txq) &&
3656 (niu_tx_avail(rp) > NIU_TX_WAKEUP_THRESH(rp)))
3657 netif_tx_wake_queue(txq);
3658 __netif_tx_unlock(txq);
3659 }
3660 }
3661
3662 static inline void niu_sync_rx_discard_stats(struct niu *np,
3663 struct rx_ring_info *rp,
3664 const int limit)
3665 {
3666 /* This elaborate scheme is needed for reading the RX discard
3667 * counters, as they are only 16-bit and can overflow quickly,
3668 * and because the overflow indication bit is not usable as
3669 * the counter value does not wrap, but remains at max value
3670 * 0xFFFF.
3671 *
3672 * In theory and in practice counters can be lost in between
3673 * reading nr64() and clearing the counter nw64(). For this
3674 * reason, the number of counter clearings nw64() is
3675 * limited/reduced though the limit parameter.
3676 */
3677 int rx_channel = rp->rx_channel;
3678 u32 misc, wred;
3679
3680 /* RXMISC (Receive Miscellaneous Discard Count), covers the
3681 * following discard events: IPP (Input Port Process),
3682 * FFLP/TCAM, Full RCR (Receive Completion Ring) RBR (Receive
3683 * Block Ring) prefetch buffer is empty.
3684 */
3685 misc = nr64(RXMISC(rx_channel));
3686 if (unlikely((misc & RXMISC_COUNT) > limit)) {
3687 nw64(RXMISC(rx_channel), 0);
3688 rp->rx_errors += misc & RXMISC_COUNT;
3689
3690 if (unlikely(misc & RXMISC_OFLOW))
3691 dev_err(np->device, "rx-%d: Counter overflow RXMISC discard\n",
3692 rx_channel);
3693
3694 netif_printk(np, rx_err, KERN_DEBUG, np->dev,
3695 "rx-%d: MISC drop=%u over=%u\n",
3696 rx_channel, misc, misc-limit);
3697 }
3698
3699 /* WRED (Weighted Random Early Discard) by hardware */
3700 wred = nr64(RED_DIS_CNT(rx_channel));
3701 if (unlikely((wred & RED_DIS_CNT_COUNT) > limit)) {
3702 nw64(RED_DIS_CNT(rx_channel), 0);
3703 rp->rx_dropped += wred & RED_DIS_CNT_COUNT;
3704
3705 if (unlikely(wred & RED_DIS_CNT_OFLOW))
3706 dev_err(np->device, "rx-%d: Counter overflow WRED discard\n", rx_channel);
3707
3708 netif_printk(np, rx_err, KERN_DEBUG, np->dev,
3709 "rx-%d: WRED drop=%u over=%u\n",
3710 rx_channel, wred, wred-limit);
3711 }
3712 }
3713
3714 static int niu_rx_work(struct napi_struct *napi, struct niu *np,
3715 struct rx_ring_info *rp, int budget)
3716 {
3717 int qlen, rcr_done = 0, work_done = 0;
3718 struct rxdma_mailbox *mbox = rp->mbox;
3719 u64 stat;
3720
3721 #if 1
3722 stat = nr64(RX_DMA_CTL_STAT(rp->rx_channel));
3723 qlen = nr64(RCRSTAT_A(rp->rx_channel)) & RCRSTAT_A_QLEN;
3724 #else
3725 stat = le64_to_cpup(&mbox->rx_dma_ctl_stat);
3726 qlen = (le64_to_cpup(&mbox->rcrstat_a) & RCRSTAT_A_QLEN);
3727 #endif
3728 mbox->rx_dma_ctl_stat = 0;
3729 mbox->rcrstat_a = 0;
3730
3731 netif_printk(np, rx_status, KERN_DEBUG, np->dev,
3732 "%s(chan[%d]), stat[%llx] qlen=%d\n",
3733 __func__, rp->rx_channel, (unsigned long long)stat, qlen);
3734
3735 rcr_done = work_done = 0;
3736 qlen = min(qlen, budget);
3737 while (work_done < qlen) {
3738 rcr_done += niu_process_rx_pkt(napi, np, rp);
3739 work_done++;
3740 }
3741
3742 if (rp->rbr_refill_pending >= rp->rbr_kick_thresh) {
3743 unsigned int i;
3744
3745 for (i = 0; i < rp->rbr_refill_pending; i++)
3746 niu_rbr_refill(np, rp, GFP_ATOMIC);
3747 rp->rbr_refill_pending = 0;
3748 }
3749
3750 stat = (RX_DMA_CTL_STAT_MEX |
3751 ((u64)work_done << RX_DMA_CTL_STAT_PKTREAD_SHIFT) |
3752 ((u64)rcr_done << RX_DMA_CTL_STAT_PTRREAD_SHIFT));
3753
3754 nw64(RX_DMA_CTL_STAT(rp->rx_channel), stat);
3755
3756 /* Only sync discards stats when qlen indicate potential for drops */
3757 if (qlen > 10)
3758 niu_sync_rx_discard_stats(np, rp, 0x7FFF);
3759
3760 return work_done;
3761 }
3762
3763 static int niu_poll_core(struct niu *np, struct niu_ldg *lp, int budget)
3764 {
3765 u64 v0 = lp->v0;
3766 u32 tx_vec = (v0 >> 32);
3767 u32 rx_vec = (v0 & 0xffffffff);
3768 int i, work_done = 0;
3769
3770 netif_printk(np, intr, KERN_DEBUG, np->dev,
3771 "%s() v0[%016llx]\n", __func__, (unsigned long long)v0);
3772
3773 for (i = 0; i < np->num_tx_rings; i++) {
3774 struct tx_ring_info *rp = &np->tx_rings[i];
3775 if (tx_vec & (1 << rp->tx_channel))
3776 niu_tx_work(np, rp);
3777 nw64(LD_IM0(LDN_TXDMA(rp->tx_channel)), 0);
3778 }
3779
3780 for (i = 0; i < np->num_rx_rings; i++) {
3781 struct rx_ring_info *rp = &np->rx_rings[i];
3782
3783 if (rx_vec & (1 << rp->rx_channel)) {
3784 int this_work_done;
3785
3786 this_work_done = niu_rx_work(&lp->napi, np, rp,
3787 budget);
3788
3789 budget -= this_work_done;
3790 work_done += this_work_done;
3791 }
3792 nw64(LD_IM0(LDN_RXDMA(rp->rx_channel)), 0);
3793 }
3794
3795 return work_done;
3796 }
3797
3798 static int niu_poll(struct napi_struct *napi, int budget)
3799 {
3800 struct niu_ldg *lp = container_of(napi, struct niu_ldg, napi);
3801 struct niu *np = lp->np;
3802 int work_done;
3803
3804 work_done = niu_poll_core(np, lp, budget);
3805
3806 if (work_done < budget) {
3807 napi_complete(napi);
3808 niu_ldg_rearm(np, lp, 1);
3809 }
3810 return work_done;
3811 }
3812
3813 static void niu_log_rxchan_errors(struct niu *np, struct rx_ring_info *rp,
3814 u64 stat)
3815 {
3816 netdev_err(np->dev, "RX channel %u errors ( ", rp->rx_channel);
3817
3818 if (stat & RX_DMA_CTL_STAT_RBR_TMOUT)
3819 pr_cont("RBR_TMOUT ");
3820 if (stat & RX_DMA_CTL_STAT_RSP_CNT_ERR)
3821 pr_cont("RSP_CNT ");
3822 if (stat & RX_DMA_CTL_STAT_BYTE_EN_BUS)
3823 pr_cont("BYTE_EN_BUS ");
3824 if (stat & RX_DMA_CTL_STAT_RSP_DAT_ERR)
3825 pr_cont("RSP_DAT ");
3826 if (stat & RX_DMA_CTL_STAT_RCR_ACK_ERR)
3827 pr_cont("RCR_ACK ");
3828 if (stat & RX_DMA_CTL_STAT_RCR_SHA_PAR)
3829 pr_cont("RCR_SHA_PAR ");
3830 if (stat & RX_DMA_CTL_STAT_RBR_PRE_PAR)
3831 pr_cont("RBR_PRE_PAR ");
3832 if (stat & RX_DMA_CTL_STAT_CONFIG_ERR)
3833 pr_cont("CONFIG ");
3834 if (stat & RX_DMA_CTL_STAT_RCRINCON)
3835 pr_cont("RCRINCON ");
3836 if (stat & RX_DMA_CTL_STAT_RCRFULL)
3837 pr_cont("RCRFULL ");
3838 if (stat & RX_DMA_CTL_STAT_RBRFULL)
3839 pr_cont("RBRFULL ");
3840 if (stat & RX_DMA_CTL_STAT_RBRLOGPAGE)
3841 pr_cont("RBRLOGPAGE ");
3842 if (stat & RX_DMA_CTL_STAT_CFIGLOGPAGE)
3843 pr_cont("CFIGLOGPAGE ");
3844 if (stat & RX_DMA_CTL_STAT_DC_FIFO_ERR)
3845 pr_cont("DC_FIDO ");
3846
3847 pr_cont(")\n");
3848 }
3849
3850 static int niu_rx_error(struct niu *np, struct rx_ring_info *rp)
3851 {
3852 u64 stat = nr64(RX_DMA_CTL_STAT(rp->rx_channel));
3853 int err = 0;
3854
3855
3856 if (stat & (RX_DMA_CTL_STAT_CHAN_FATAL |
3857 RX_DMA_CTL_STAT_PORT_FATAL))
3858 err = -EINVAL;
3859
3860 if (err) {
3861 netdev_err(np->dev, "RX channel %u error, stat[%llx]\n",
3862 rp->rx_channel,
3863 (unsigned long long) stat);
3864
3865 niu_log_rxchan_errors(np, rp, stat);
3866 }
3867
3868 nw64(RX_DMA_CTL_STAT(rp->rx_channel),
3869 stat & RX_DMA_CTL_WRITE_CLEAR_ERRS);
3870
3871 return err;
3872 }
3873
3874 static void niu_log_txchan_errors(struct niu *np, struct tx_ring_info *rp,
3875 u64 cs)
3876 {
3877 netdev_err(np->dev, "TX channel %u errors ( ", rp->tx_channel);
3878
3879 if (cs & TX_CS_MBOX_ERR)
3880 pr_cont("MBOX ");
3881 if (cs & TX_CS_PKT_SIZE_ERR)
3882 pr_cont("PKT_SIZE ");
3883 if (cs & TX_CS_TX_RING_OFLOW)
3884 pr_cont("TX_RING_OFLOW ");
3885 if (cs & TX_CS_PREF_BUF_PAR_ERR)
3886 pr_cont("PREF_BUF_PAR ");
3887 if (cs & TX_CS_NACK_PREF)
3888 pr_cont("NACK_PREF ");
3889 if (cs & TX_CS_NACK_PKT_RD)
3890 pr_cont("NACK_PKT_RD ");
3891 if (cs & TX_CS_CONF_PART_ERR)
3892 pr_cont("CONF_PART ");
3893 if (cs & TX_CS_PKT_PRT_ERR)
3894 pr_cont("PKT_PTR ");
3895
3896 pr_cont(")\n");
3897 }
3898
3899 static int niu_tx_error(struct niu *np, struct tx_ring_info *rp)
3900 {
3901 u64 cs, logh, logl;
3902
3903 cs = nr64(TX_CS(rp->tx_channel));
3904 logh = nr64(TX_RNG_ERR_LOGH(rp->tx_channel));
3905 logl = nr64(TX_RNG_ERR_LOGL(rp->tx_channel));
3906
3907 netdev_err(np->dev, "TX channel %u error, cs[%llx] logh[%llx] logl[%llx]\n",
3908 rp->tx_channel,
3909 (unsigned long long)cs,
3910 (unsigned long long)logh,
3911 (unsigned long long)logl);
3912
3913 niu_log_txchan_errors(np, rp, cs);
3914
3915 return -ENODEV;
3916 }
3917
3918 static int niu_mif_interrupt(struct niu *np)
3919 {
3920 u64 mif_status = nr64(MIF_STATUS);
3921 int phy_mdint = 0;
3922
3923 if (np->flags & NIU_FLAGS_XMAC) {
3924 u64 xrxmac_stat = nr64_mac(XRXMAC_STATUS);
3925
3926 if (xrxmac_stat & XRXMAC_STATUS_PHY_MDINT)
3927 phy_mdint = 1;
3928 }
3929
3930 netdev_err(np->dev, "MIF interrupt, stat[%llx] phy_mdint(%d)\n",
3931 (unsigned long long)mif_status, phy_mdint);
3932
3933 return -ENODEV;
3934 }
3935
3936 static void niu_xmac_interrupt(struct niu *np)
3937 {
3938 struct niu_xmac_stats *mp = &np->mac_stats.xmac;
3939 u64 val;
3940
3941 val = nr64_mac(XTXMAC_STATUS);
3942 if (val & XTXMAC_STATUS_FRAME_CNT_EXP)
3943 mp->tx_frames += TXMAC_FRM_CNT_COUNT;
3944 if (val & XTXMAC_STATUS_BYTE_CNT_EXP)
3945 mp->tx_bytes += TXMAC_BYTE_CNT_COUNT;
3946 if (val & XTXMAC_STATUS_TXFIFO_XFR_ERR)
3947 mp->tx_fifo_errors++;
3948 if (val & XTXMAC_STATUS_TXMAC_OFLOW)
3949 mp->tx_overflow_errors++;
3950 if (val & XTXMAC_STATUS_MAX_PSIZE_ERR)
3951 mp->tx_max_pkt_size_errors++;
3952 if (val & XTXMAC_STATUS_TXMAC_UFLOW)
3953 mp->tx_underflow_errors++;
3954
3955 val = nr64_mac(XRXMAC_STATUS);
3956 if (val & XRXMAC_STATUS_LCL_FLT_STATUS)
3957 mp->rx_local_faults++;
3958 if (val & XRXMAC_STATUS_RFLT_DET)
3959 mp->rx_remote_faults++;
3960 if (val & XRXMAC_STATUS_LFLT_CNT_EXP)
3961 mp->rx_link_faults += LINK_FAULT_CNT_COUNT;
3962 if (val & XRXMAC_STATUS_ALIGNERR_CNT_EXP)
3963 mp->rx_align_errors += RXMAC_ALIGN_ERR_CNT_COUNT;
3964 if (val & XRXMAC_STATUS_RXFRAG_CNT_EXP)
3965 mp->rx_frags += RXMAC_FRAG_CNT_COUNT;
3966 if (val & XRXMAC_STATUS_RXMULTF_CNT_EXP)
3967 mp->rx_mcasts += RXMAC_MC_FRM_CNT_COUNT;
3968 if (val & XRXMAC_STATUS_RXBCAST_CNT_EXP)
3969 mp->rx_bcasts += RXMAC_BC_FRM_CNT_COUNT;
3970 if (val & XRXMAC_STATUS_RXBCAST_CNT_EXP)
3971 mp->rx_bcasts += RXMAC_BC_FRM_CNT_COUNT;
3972 if (val & XRXMAC_STATUS_RXHIST1_CNT_EXP)
3973 mp->rx_hist_cnt1 += RXMAC_HIST_CNT1_COUNT;
3974 if (val & XRXMAC_STATUS_RXHIST2_CNT_EXP)
3975 mp->rx_hist_cnt2 += RXMAC_HIST_CNT2_COUNT;
3976 if (val & XRXMAC_STATUS_RXHIST3_CNT_EXP)
3977 mp->rx_hist_cnt3 += RXMAC_HIST_CNT3_COUNT;
3978 if (val & XRXMAC_STATUS_RXHIST4_CNT_EXP)
3979 mp->rx_hist_cnt4 += RXMAC_HIST_CNT4_COUNT;
3980 if (val & XRXMAC_STATUS_RXHIST5_CNT_EXP)
3981 mp->rx_hist_cnt5 += RXMAC_HIST_CNT5_COUNT;
3982 if (val & XRXMAC_STATUS_RXHIST6_CNT_EXP)
3983 mp->rx_hist_cnt6 += RXMAC_HIST_CNT6_COUNT;
3984 if (val & XRXMAC_STATUS_RXHIST7_CNT_EXP)
3985 mp->rx_hist_cnt7 += RXMAC_HIST_CNT7_COUNT;
3986 if (val & XRXMAC_STATUS_RXOCTET_CNT_EXP)
3987 mp->rx_octets += RXMAC_BT_CNT_COUNT;
3988 if (val & XRXMAC_STATUS_CVIOLERR_CNT_EXP)
3989 mp->rx_code_violations += RXMAC_CD_VIO_CNT_COUNT;
3990 if (val & XRXMAC_STATUS_LENERR_CNT_EXP)
3991 mp->rx_len_errors += RXMAC_MPSZER_CNT_COUNT;
3992 if (val & XRXMAC_STATUS_CRCERR_CNT_EXP)
3993 mp->rx_crc_errors += RXMAC_CRC_ER_CNT_COUNT;
3994 if (val & XRXMAC_STATUS_RXUFLOW)
3995 mp->rx_underflows++;
3996 if (val & XRXMAC_STATUS_RXOFLOW)
3997 mp->rx_overflows++;
3998
3999 val = nr64_mac(XMAC_FC_STAT);
4000 if (val & XMAC_FC_STAT_TX_MAC_NPAUSE)
4001 mp->pause_off_state++;
4002 if (val & XMAC_FC_STAT_TX_MAC_PAUSE)
4003 mp->pause_on_state++;
4004 if (val & XMAC_FC_STAT_RX_MAC_RPAUSE)
4005 mp->pause_received++;
4006 }
4007
4008 static void niu_bmac_interrupt(struct niu *np)
4009 {
4010 struct niu_bmac_stats *mp = &np->mac_stats.bmac;
4011 u64 val;
4012
4013 val = nr64_mac(BTXMAC_STATUS);
4014 if (val & BTXMAC_STATUS_UNDERRUN)
4015 mp->tx_underflow_errors++;
4016 if (val & BTXMAC_STATUS_MAX_PKT_ERR)
4017 mp->tx_max_pkt_size_errors++;
4018 if (val & BTXMAC_STATUS_BYTE_CNT_EXP)
4019 mp->tx_bytes += BTXMAC_BYTE_CNT_COUNT;
4020 if (val & BTXMAC_STATUS_FRAME_CNT_EXP)
4021 mp->tx_frames += BTXMAC_FRM_CNT_COUNT;
4022
4023 val = nr64_mac(BRXMAC_STATUS);
4024 if (val & BRXMAC_STATUS_OVERFLOW)
4025 mp->rx_overflows++;
4026 if (val & BRXMAC_STATUS_FRAME_CNT_EXP)
4027 mp->rx_frames += BRXMAC_FRAME_CNT_COUNT;
4028 if (val & BRXMAC_STATUS_ALIGN_ERR_EXP)
4029 mp->rx_align_errors += BRXMAC_ALIGN_ERR_CNT_COUNT;
4030 if (val & BRXMAC_STATUS_CRC_ERR_EXP)
4031 mp->rx_crc_errors += BRXMAC_ALIGN_ERR_CNT_COUNT;
4032 if (val & BRXMAC_STATUS_LEN_ERR_EXP)
4033 mp->rx_len_errors += BRXMAC_CODE_VIOL_ERR_CNT_COUNT;
4034
4035 val = nr64_mac(BMAC_CTRL_STATUS);
4036 if (val & BMAC_CTRL_STATUS_NOPAUSE)
4037 mp->pause_off_state++;
4038 if (val & BMAC_CTRL_STATUS_PAUSE)
4039 mp->pause_on_state++;
4040 if (val & BMAC_CTRL_STATUS_PAUSE_RECV)
4041 mp->pause_received++;
4042 }
4043
4044 static int niu_mac_interrupt(struct niu *np)
4045 {
4046 if (np->flags & NIU_FLAGS_XMAC)
4047 niu_xmac_interrupt(np);
4048 else
4049 niu_bmac_interrupt(np);
4050
4051 return 0;
4052 }
4053
4054 static void niu_log_device_error(struct niu *np, u64 stat)
4055 {
4056 netdev_err(np->dev, "Core device errors ( ");
4057
4058 if (stat & SYS_ERR_MASK_META2)
4059 pr_cont("META2 ");
4060 if (stat & SYS_ERR_MASK_META1)
4061 pr_cont("META1 ");
4062 if (stat & SYS_ERR_MASK_PEU)
4063 pr_cont("PEU ");
4064 if (stat & SYS_ERR_MASK_TXC)
4065 pr_cont("TXC ");
4066 if (stat & SYS_ERR_MASK_RDMC)
4067 pr_cont("RDMC ");
4068 if (stat & SYS_ERR_MASK_TDMC)
4069 pr_cont("TDMC ");
4070 if (stat & SYS_ERR_MASK_ZCP)
4071 pr_cont("ZCP ");
4072 if (stat & SYS_ERR_MASK_FFLP)
4073 pr_cont("FFLP ");
4074 if (stat & SYS_ERR_MASK_IPP)
4075 pr_cont("IPP ");
4076 if (stat & SYS_ERR_MASK_MAC)
4077 pr_cont("MAC ");
4078 if (stat & SYS_ERR_MASK_SMX)
4079 pr_cont("SMX ");
4080
4081 pr_cont(")\n");
4082 }
4083
4084 static int niu_device_error(struct niu *np)
4085 {
4086 u64 stat = nr64(SYS_ERR_STAT);
4087
4088 netdev_err(np->dev, "Core device error, stat[%llx]\n",
4089 (unsigned long long)stat);
4090
4091 niu_log_device_error(np, stat);
4092
4093 return -ENODEV;
4094 }
4095
4096 static int niu_slowpath_interrupt(struct niu *np, struct niu_ldg *lp,
4097 u64 v0, u64 v1, u64 v2)
4098 {
4099
4100 int i, err = 0;
4101
4102 lp->v0 = v0;
4103 lp->v1 = v1;
4104 lp->v2 = v2;
4105
4106 if (v1 & 0x00000000ffffffffULL) {
4107 u32 rx_vec = (v1 & 0xffffffff);
4108
4109 for (i = 0; i < np->num_rx_rings; i++) {
4110 struct rx_ring_info *rp = &np->rx_rings[i];
4111
4112 if (rx_vec & (1 << rp->rx_channel)) {
4113 int r = niu_rx_error(np, rp);
4114 if (r) {
4115 err = r;
4116 } else {
4117 if (!v0)
4118 nw64(RX_DMA_CTL_STAT(rp->rx_channel),
4119 RX_DMA_CTL_STAT_MEX);
4120 }
4121 }
4122 }
4123 }
4124 if (v1 & 0x7fffffff00000000ULL) {
4125 u32 tx_vec = (v1 >> 32) & 0x7fffffff;
4126
4127 for (i = 0; i < np->num_tx_rings; i++) {
4128 struct tx_ring_info *rp = &np->tx_rings[i];
4129
4130 if (tx_vec & (1 << rp->tx_channel)) {
4131 int r = niu_tx_error(np, rp);
4132 if (r)
4133 err = r;
4134 }
4135 }
4136 }
4137 if ((v0 | v1) & 0x8000000000000000ULL) {
4138 int r = niu_mif_interrupt(np);
4139 if (r)
4140 err = r;
4141 }
4142 if (v2) {
4143 if (v2 & 0x01ef) {
4144 int r = niu_mac_interrupt(np);
4145 if (r)
4146 err = r;
4147 }
4148 if (v2 & 0x0210) {
4149 int r = niu_device_error(np);
4150 if (r)
4151 err = r;
4152 }
4153 }
4154
4155 if (err)
4156 niu_enable_interrupts(np, 0);
4157
4158 return err;
4159 }
4160
4161 static void niu_rxchan_intr(struct niu *np, struct rx_ring_info *rp,
4162 int ldn)
4163 {
4164 struct rxdma_mailbox *mbox = rp->mbox;
4165 u64 stat_write, stat = le64_to_cpup(&mbox->rx_dma_ctl_stat);
4166
4167 stat_write = (RX_DMA_CTL_STAT_RCRTHRES |
4168 RX_DMA_CTL_STAT_RCRTO);
4169 nw64(RX_DMA_CTL_STAT(rp->rx_channel), stat_write);
4170
4171 netif_printk(np, intr, KERN_DEBUG, np->dev,
4172 "%s() stat[%llx]\n", __func__, (unsigned long long)stat);
4173 }
4174
4175 static void niu_txchan_intr(struct niu *np, struct tx_ring_info *rp,
4176 int ldn)
4177 {
4178 rp->tx_cs = nr64(TX_CS(rp->tx_channel));
4179
4180 netif_printk(np, intr, KERN_DEBUG, np->dev,
4181 "%s() cs[%llx]\n", __func__, (unsigned long long)rp->tx_cs);
4182 }
4183
4184 static void __niu_fastpath_interrupt(struct niu *np, int ldg, u64 v0)
4185 {
4186 struct niu_parent *parent = np->parent;
4187 u32 rx_vec, tx_vec;
4188 int i;
4189
4190 tx_vec = (v0 >> 32);
4191 rx_vec = (v0 & 0xffffffff);
4192
4193 for (i = 0; i < np->num_rx_rings; i++) {
4194 struct rx_ring_info *rp = &np->rx_rings[i];
4195 int ldn = LDN_RXDMA(rp->rx_channel);
4196
4197 if (parent->ldg_map[ldn] != ldg)
4198 continue;
4199
4200 nw64(LD_IM0(ldn), LD_IM0_MASK);
4201 if (rx_vec & (1 << rp->rx_channel))
4202 niu_rxchan_intr(np, rp, ldn);
4203 }
4204
4205 for (i = 0; i < np->num_tx_rings; i++) {
4206 struct tx_ring_info *rp = &np->tx_rings[i];
4207 int ldn = LDN_TXDMA(rp->tx_channel);
4208
4209 if (parent->ldg_map[ldn] != ldg)
4210 continue;
4211
4212 nw64(LD_IM0(ldn), LD_IM0_MASK);
4213 if (tx_vec & (1 << rp->tx_channel))
4214 niu_txchan_intr(np, rp, ldn);
4215 }
4216 }
4217
4218 static void niu_schedule_napi(struct niu *np, struct niu_ldg *lp,
4219 u64 v0, u64 v1, u64 v2)
4220 {
4221 if (likely(napi_schedule_prep(&lp->napi))) {
4222 lp->v0 = v0;
4223 lp->v1 = v1;
4224 lp->v2 = v2;
4225 __niu_fastpath_interrupt(np, lp->ldg_num, v0);
4226 __napi_schedule(&lp->napi);
4227 }
4228 }
4229
4230 static irqreturn_t niu_interrupt(int irq, void *dev_id)
4231 {
4232 struct niu_ldg *lp = dev_id;
4233 struct niu *np = lp->np;
4234 int ldg = lp->ldg_num;
4235 unsigned long flags;
4236 u64 v0, v1, v2;
4237
4238 if (netif_msg_intr(np))
4239 printk(KERN_DEBUG KBUILD_MODNAME ": " "%s() ldg[%p](%d)",
4240 __func__, lp, ldg);
4241
4242 spin_lock_irqsave(&np->lock, flags);
4243
4244 v0 = nr64(LDSV0(ldg));
4245 v1 = nr64(LDSV1(ldg));
4246 v2 = nr64(LDSV2(ldg));
4247
4248 if (netif_msg_intr(np))
4249 pr_cont(" v0[%llx] v1[%llx] v2[%llx]\n",
4250 (unsigned long long) v0,
4251 (unsigned long long) v1,
4252 (unsigned long long) v2);
4253
4254 if (unlikely(!v0 && !v1 && !v2)) {
4255 spin_unlock_irqrestore(&np->lock, flags);
4256 return IRQ_NONE;
4257 }
4258
4259 if (unlikely((v0 & ((u64)1 << LDN_MIF)) || v1 || v2)) {
4260 int err = niu_slowpath_interrupt(np, lp, v0, v1, v2);
4261 if (err)
4262 goto out;
4263 }
4264 if (likely(v0 & ~((u64)1 << LDN_MIF)))
4265 niu_schedule_napi(np, lp, v0, v1, v2);
4266 else
4267 niu_ldg_rearm(np, lp, 1);
4268 out:
4269 spin_unlock_irqrestore(&np->lock, flags);
4270
4271 return IRQ_HANDLED;
4272 }
4273
4274 static void niu_free_rx_ring_info(struct niu *np, struct rx_ring_info *rp)
4275 {
4276 if (rp->mbox) {
4277 np->ops->free_coherent(np->device,
4278 sizeof(struct rxdma_mailbox),
4279 rp->mbox, rp->mbox_dma);
4280 rp->mbox = NULL;
4281 }
4282 if (rp->rcr) {
4283 np->ops->free_coherent(np->device,
4284 MAX_RCR_RING_SIZE * sizeof(__le64),
4285 rp->rcr, rp->rcr_dma);
4286 rp->rcr = NULL;
4287 rp->rcr_table_size = 0;
4288 rp->rcr_index = 0;
4289 }
4290 if (rp->rbr) {
4291 niu_rbr_free(np, rp);
4292
4293 np->ops->free_coherent(np->device,
4294 MAX_RBR_RING_SIZE * sizeof(__le32),
4295 rp->rbr, rp->rbr_dma);
4296 rp->rbr = NULL;
4297 rp->rbr_table_size = 0;
4298 rp->rbr_index = 0;
4299 }
4300 kfree(rp->rxhash);
4301 rp->rxhash = NULL;
4302 }
4303
4304 static void niu_free_tx_ring_info(struct niu *np, struct tx_ring_info *rp)
4305 {
4306 if (rp->mbox) {
4307 np->ops->free_coherent(np->device,
4308 sizeof(struct txdma_mailbox),
4309 rp->mbox, rp->mbox_dma);
4310 rp->mbox = NULL;
4311 }
4312 if (rp->descr) {
4313 int i;
4314
4315 for (i = 0; i < MAX_TX_RING_SIZE; i++) {
4316 if (rp->tx_buffs[i].skb)
4317 (void) release_tx_packet(np, rp, i);
4318 }
4319
4320 np->ops->free_coherent(np->device,
4321 MAX_TX_RING_SIZE * sizeof(__le64),
4322 rp->descr, rp->descr_dma);
4323 rp->descr = NULL;
4324 rp->pending = 0;
4325 rp->prod = 0;
4326 rp->cons = 0;
4327 rp->wrap_bit = 0;
4328 }
4329 }
4330
4331 static void niu_free_channels(struct niu *np)
4332 {
4333 int i;
4334
4335 if (np->rx_rings) {
4336 for (i = 0; i < np->num_rx_rings; i++) {
4337 struct rx_ring_info *rp = &np->rx_rings[i];
4338
4339 niu_free_rx_ring_info(np, rp);
4340 }
4341 kfree(np->rx_rings);
4342 np->rx_rings = NULL;
4343 np->num_rx_rings = 0;
4344 }
4345
4346 if (np->tx_rings) {
4347 for (i = 0; i < np->num_tx_rings; i++) {
4348 struct tx_ring_info *rp = &np->tx_rings[i];
4349
4350 niu_free_tx_ring_info(np, rp);
4351 }
4352 kfree(np->tx_rings);
4353 np->tx_rings = NULL;
4354 np->num_tx_rings = 0;
4355 }
4356 }
4357
4358 static int niu_alloc_rx_ring_info(struct niu *np,
4359 struct rx_ring_info *rp)
4360 {
4361 BUILD_BUG_ON(sizeof(struct rxdma_mailbox) != 64);
4362
4363 rp->rxhash = kzalloc(MAX_RBR_RING_SIZE * sizeof(struct page *),
4364 GFP_KERNEL);
4365 if (!rp->rxhash)
4366 return -ENOMEM;
4367
4368 rp->mbox = np->ops->alloc_coherent(np->device,
4369 sizeof(struct rxdma_mailbox),
4370 &rp->mbox_dma, GFP_KERNEL);
4371 if (!rp->mbox)
4372 return -ENOMEM;
4373 if ((unsigned long)rp->mbox & (64UL - 1)) {
4374 netdev_err(np->dev, "Coherent alloc gives misaligned RXDMA mailbox %p\n",
4375 rp->mbox);
4376 return -EINVAL;
4377 }
4378
4379 rp->rcr = np->ops->alloc_coherent(np->device,
4380 MAX_RCR_RING_SIZE * sizeof(__le64),
4381 &rp->rcr_dma, GFP_KERNEL);
4382 if (!rp->rcr)
4383 return -ENOMEM;
4384 if ((unsigned long)rp->rcr & (64UL - 1)) {
4385 netdev_err(np->dev, "Coherent alloc gives misaligned RXDMA RCR table %p\n",
4386 rp->rcr);
4387 return -EINVAL;
4388 }
4389 rp->rcr_table_size = MAX_RCR_RING_SIZE;
4390 rp->rcr_index = 0;
4391
4392 rp->rbr = np->ops->alloc_coherent(np->device,
4393 MAX_RBR_RING_SIZE * sizeof(__le32),
4394 &rp->rbr_dma, GFP_KERNEL);
4395 if (!rp->rbr)
4396 return -ENOMEM;
4397 if ((unsigned long)rp->rbr & (64UL - 1)) {
4398 netdev_err(np->dev, "Coherent alloc gives misaligned RXDMA RBR table %p\n",
4399 rp->rbr);
4400 return -EINVAL;
4401 }
4402 rp->rbr_table_size = MAX_RBR_RING_SIZE;
4403 rp->rbr_index = 0;
4404 rp->rbr_pending = 0;
4405
4406 return 0;
4407 }
4408
4409 static void niu_set_max_burst(struct niu *np, struct tx_ring_info *rp)
4410 {
4411 int mtu = np->dev->mtu;
4412
4413 /* These values are recommended by the HW designers for fair
4414 * utilization of DRR amongst the rings.
4415 */
4416 rp->max_burst = mtu + 32;
4417 if (rp->max_burst > 4096)
4418 rp->max_burst = 4096;
4419 }
4420
4421 static int niu_alloc_tx_ring_info(struct niu *np,
4422 struct tx_ring_info *rp)
4423 {
4424 BUILD_BUG_ON(sizeof(struct txdma_mailbox) != 64);
4425
4426 rp->mbox = np->ops->alloc_coherent(np->device,
4427 sizeof(struct txdma_mailbox),
4428 &rp->mbox_dma, GFP_KERNEL);
4429 if (!rp->mbox)
4430 return -ENOMEM;
4431 if ((unsigned long)rp->mbox & (64UL - 1)) {
4432 netdev_err(np->dev, "Coherent alloc gives misaligned TXDMA mailbox %p\n",
4433 rp->mbox);
4434 return -EINVAL;
4435 }
4436
4437 rp->descr = np->ops->alloc_coherent(np->device,
4438 MAX_TX_RING_SIZE * sizeof(__le64),
4439 &rp->descr_dma, GFP_KERNEL);
4440 if (!rp->descr)
4441 return -ENOMEM;
4442 if ((unsigned long)rp->descr & (64UL - 1)) {
4443 netdev_err(np->dev, "Coherent alloc gives misaligned TXDMA descr table %p\n",
4444 rp->descr);
4445 return -EINVAL;
4446 }
4447
4448 rp->pending = MAX_TX_RING_SIZE;
4449 rp->prod = 0;
4450 rp->cons = 0;
4451 rp->wrap_bit = 0;
4452
4453 /* XXX make these configurable... XXX */
4454 rp->mark_freq = rp->pending / 4;
4455
4456 niu_set_max_burst(np, rp);
4457
4458 return 0;
4459 }
4460
4461 static void niu_size_rbr(struct niu *np, struct rx_ring_info *rp)
4462 {
4463 u16 bss;
4464
4465 bss = min(PAGE_SHIFT, 15);
4466
4467 rp->rbr_block_size = 1 << bss;
4468 rp->rbr_blocks_per_page = 1 << (PAGE_SHIFT-bss);
4469
4470 rp->rbr_sizes[0] = 256;
4471 rp->rbr_sizes[1] = 1024;
4472 if (np->dev->mtu > ETH_DATA_LEN) {
4473 switch (PAGE_SIZE) {
4474 case 4 * 1024:
4475 rp->rbr_sizes[2] = 4096;
4476 break;
4477
4478 default:
4479 rp->rbr_sizes[2] = 8192;
4480 break;
4481 }
4482 } else {
4483 rp->rbr_sizes[2] = 2048;
4484 }
4485 rp->rbr_sizes[3] = rp->rbr_block_size;
4486 }
4487
4488 static int niu_alloc_channels(struct niu *np)
4489 {
4490 struct niu_parent *parent = np->parent;
4491 int first_rx_channel, first_tx_channel;
4492 int num_rx_rings, num_tx_rings;
4493 struct rx_ring_info *rx_rings;
4494 struct tx_ring_info *tx_rings;
4495 int i, port, err;
4496
4497 port = np->port;
4498 first_rx_channel = first_tx_channel = 0;
4499 for (i = 0; i < port; i++) {
4500 first_rx_channel += parent->rxchan_per_port[i];
4501 first_tx_channel += parent->txchan_per_port[i];
4502 }
4503
4504 num_rx_rings = parent->rxchan_per_port[port];
4505 num_tx_rings = parent->txchan_per_port[port];
4506
4507 rx_rings = kcalloc(num_rx_rings, sizeof(struct rx_ring_info),
4508 GFP_KERNEL);
4509 err = -ENOMEM;
4510 if (!rx_rings)
4511 goto out_err;
4512
4513 np->num_rx_rings = num_rx_rings;
4514 smp_wmb();
4515 np->rx_rings = rx_rings;
4516
4517 netif_set_real_num_rx_queues(np->dev, num_rx_rings);
4518
4519 for (i = 0; i < np->num_rx_rings; i++) {
4520 struct rx_ring_info *rp = &np->rx_rings[i];
4521
4522 rp->np = np;
4523 rp->rx_channel = first_rx_channel + i;
4524
4525 err = niu_alloc_rx_ring_info(np, rp);
4526 if (err)
4527 goto out_err;
4528
4529 niu_size_rbr(np, rp);
4530
4531 /* XXX better defaults, configurable, etc... XXX */
4532 rp->nonsyn_window = 64;
4533 rp->nonsyn_threshold = rp->rcr_table_size - 64;
4534 rp->syn_window = 64;
4535 rp->syn_threshold = rp->rcr_table_size - 64;
4536 rp->rcr_pkt_threshold = 16;
4537 rp->rcr_timeout = 8;
4538 rp->rbr_kick_thresh = RBR_REFILL_MIN;
4539 if (rp->rbr_kick_thresh < rp->rbr_blocks_per_page)
4540 rp->rbr_kick_thresh = rp->rbr_blocks_per_page;
4541
4542 err = niu_rbr_fill(np, rp, GFP_KERNEL);
4543 if (err)
4544 return err;
4545 }
4546
4547 tx_rings = kcalloc(num_tx_rings, sizeof(struct tx_ring_info),
4548 GFP_KERNEL);
4549 err = -ENOMEM;
4550 if (!tx_rings)
4551 goto out_err;
4552
4553 np->num_tx_rings = num_tx_rings;
4554 smp_wmb();
4555 np->tx_rings = tx_rings;
4556
4557 netif_set_real_num_tx_queues(np->dev, num_tx_rings);
4558
4559 for (i = 0; i < np->num_tx_rings; i++) {
4560 struct tx_ring_info *rp = &np->tx_rings[i];
4561
4562 rp->np = np;
4563 rp->tx_channel = first_tx_channel + i;
4564
4565 err = niu_alloc_tx_ring_info(np, rp);
4566 if (err)
4567 goto out_err;
4568 }
4569
4570 return 0;
4571
4572 out_err:
4573 niu_free_channels(np);
4574 return err;
4575 }
4576
4577 static int niu_tx_cs_sng_poll(struct niu *np, int channel)
4578 {
4579 int limit = 1000;
4580
4581 while (--limit > 0) {
4582 u64 val = nr64(TX_CS(channel));
4583 if (val & TX_CS_SNG_STATE)
4584 return 0;
4585 }
4586 return -ENODEV;
4587 }
4588
4589 static int niu_tx_channel_stop(struct niu *np, int channel)
4590 {
4591 u64 val = nr64(TX_CS(channel));
4592
4593 val |= TX_CS_STOP_N_GO;
4594 nw64(TX_CS(channel), val);
4595
4596 return niu_tx_cs_sng_poll(np, channel);
4597 }
4598
4599 static int niu_tx_cs_reset_poll(struct niu *np, int channel)
4600 {
4601 int limit = 1000;
4602
4603 while (--limit > 0) {
4604 u64 val = nr64(TX_CS(channel));
4605 if (!(val & TX_CS_RST))
4606 return 0;
4607 }
4608 return -ENODEV;
4609 }
4610
4611 static int niu_tx_channel_reset(struct niu *np, int channel)
4612 {
4613 u64 val = nr64(TX_CS(channel));
4614 int err;
4615
4616 val |= TX_CS_RST;
4617 nw64(TX_CS(channel), val);
4618
4619 err = niu_tx_cs_reset_poll(np, channel);
4620 if (!err)
4621 nw64(TX_RING_KICK(channel), 0);
4622
4623 return err;
4624 }
4625
4626 static int niu_tx_channel_lpage_init(struct niu *np, int channel)
4627 {
4628 u64 val;
4629
4630 nw64(TX_LOG_MASK1(channel), 0);
4631 nw64(TX_LOG_VAL1(channel), 0);
4632 nw64(TX_LOG_MASK2(channel), 0);
4633 nw64(TX_LOG_VAL2(channel), 0);
4634 nw64(TX_LOG_PAGE_RELO1(channel), 0);
4635 nw64(TX_LOG_PAGE_RELO2(channel), 0);
4636 nw64(TX_LOG_PAGE_HDL(channel), 0);
4637
4638 val = (u64)np->port << TX_LOG_PAGE_VLD_FUNC_SHIFT;
4639 val |= (TX_LOG_PAGE_VLD_PAGE0 | TX_LOG_PAGE_VLD_PAGE1);
4640 nw64(TX_LOG_PAGE_VLD(channel), val);
4641
4642 /* XXX TXDMA 32bit mode? XXX */
4643
4644 return 0;
4645 }
4646
4647 static void niu_txc_enable_port(struct niu *np, int on)
4648 {
4649 unsigned long flags;
4650 u64 val, mask;
4651
4652 niu_lock_parent(np, flags);
4653 val = nr64(TXC_CONTROL);
4654 mask = (u64)1 << np->port;
4655 if (on) {
4656 val |= TXC_CONTROL_ENABLE | mask;
4657 } else {
4658 val &= ~mask;
4659 if ((val & ~TXC_CONTROL_ENABLE) == 0)
4660 val &= ~TXC_CONTROL_ENABLE;
4661 }
4662 nw64(TXC_CONTROL, val);
4663 niu_unlock_parent(np, flags);
4664 }
4665
4666 static void niu_txc_set_imask(struct niu *np, u64 imask)
4667 {
4668 unsigned long flags;
4669 u64 val;
4670
4671 niu_lock_parent(np, flags);
4672 val = nr64(TXC_INT_MASK);
4673 val &= ~TXC_INT_MASK_VAL(np->port);
4674 val |= (imask << TXC_INT_MASK_VAL_SHIFT(np->port));
4675 niu_unlock_parent(np, flags);
4676 }
4677
4678 static void niu_txc_port_dma_enable(struct niu *np, int on)
4679 {
4680 u64 val = 0;
4681
4682 if (on) {
4683 int i;
4684
4685 for (i = 0; i < np->num_tx_rings; i++)
4686 val |= (1 << np->tx_rings[i].tx_channel);
4687 }
4688 nw64(TXC_PORT_DMA(np->port), val);
4689 }
4690
4691 static int niu_init_one_tx_channel(struct niu *np, struct tx_ring_info *rp)
4692 {
4693 int err, channel = rp->tx_channel;
4694 u64 val, ring_len;
4695
4696 err = niu_tx_channel_stop(np, channel);
4697 if (err)
4698 return err;
4699
4700 err = niu_tx_channel_reset(np, channel);
4701 if (err)
4702 return err;
4703
4704 err = niu_tx_channel_lpage_init(np, channel);
4705 if (err)
4706 return err;
4707
4708 nw64(TXC_DMA_MAX(channel), rp->max_burst);
4709 nw64(TX_ENT_MSK(channel), 0);
4710
4711 if (rp->descr_dma & ~(TX_RNG_CFIG_STADDR_BASE |
4712 TX_RNG_CFIG_STADDR)) {
4713 netdev_err(np->dev, "TX ring channel %d DMA addr (%llx) is not aligned\n",
4714 channel, (unsigned long long)rp->descr_dma);
4715 return -EINVAL;
4716 }
4717
4718 /* The length field in TX_RNG_CFIG is measured in 64-byte
4719 * blocks. rp->pending is the number of TX descriptors in
4720 * our ring, 8 bytes each, thus we divide by 8 bytes more
4721 * to get the proper value the chip wants.
4722 */
4723 ring_len = (rp->pending / 8);
4724
4725 val = ((ring_len << TX_RNG_CFIG_LEN_SHIFT) |
4726 rp->descr_dma);
4727 nw64(TX_RNG_CFIG(channel), val);
4728
4729 if (((rp->mbox_dma >> 32) & ~TXDMA_MBH_MBADDR) ||
4730 ((u32)rp->mbox_dma & ~TXDMA_MBL_MBADDR)) {
4731 netdev_err(np->dev, "TX ring channel %d MBOX addr (%llx) has invalid bits\n",
4732 channel, (unsigned long long)rp->mbox_dma);
4733 return -EINVAL;
4734 }
4735 nw64(TXDMA_MBH(channel), rp->mbox_dma >> 32);
4736 nw64(TXDMA_MBL(channel), rp->mbox_dma & TXDMA_MBL_MBADDR);
4737
4738 nw64(TX_CS(channel), 0);
4739
4740 rp->last_pkt_cnt = 0;
4741
4742 return 0;
4743 }
4744
4745 static void niu_init_rdc_groups(struct niu *np)
4746 {
4747 struct niu_rdc_tables *tp = &np->parent->rdc_group_cfg[np->port];
4748 int i, first_table_num = tp->first_table_num;
4749
4750 for (i = 0; i < tp->num_tables; i++) {
4751 struct rdc_table *tbl = &tp->tables[i];
4752 int this_table = first_table_num + i;
4753 int slot;
4754
4755 for (slot = 0; slot < NIU_RDC_TABLE_SLOTS; slot++)
4756 nw64(RDC_TBL(this_table, slot),
4757 tbl->rxdma_channel[slot]);
4758 }
4759
4760 nw64(DEF_RDC(np->port), np->parent->rdc_default[np->port]);
4761 }
4762
4763 static void niu_init_drr_weight(struct niu *np)
4764 {
4765 int type = phy_decode(np->parent->port_phy, np->port);
4766 u64 val;
4767
4768 switch (type) {
4769 case PORT_TYPE_10G:
4770 val = PT_DRR_WEIGHT_DEFAULT_10G;
4771 break;
4772
4773 case PORT_TYPE_1G:
4774 default:
4775 val = PT_DRR_WEIGHT_DEFAULT_1G;
4776 break;
4777 }
4778 nw64(PT_DRR_WT(np->port), val);
4779 }
4780
4781 static int niu_init_hostinfo(struct niu *np)
4782 {
4783 struct niu_parent *parent = np->parent;
4784 struct niu_rdc_tables *tp = &parent->rdc_group_cfg[np->port];
4785 int i, err, num_alt = niu_num_alt_addr(np);
4786 int first_rdc_table = tp->first_table_num;
4787
4788 err = niu_set_primary_mac_rdc_table(np, first_rdc_table, 1);
4789 if (err)
4790 return err;
4791
4792 err = niu_set_multicast_mac_rdc_table(np, first_rdc_table, 1);
4793 if (err)
4794 return err;
4795
4796 for (i = 0; i < num_alt; i++) {
4797 err = niu_set_alt_mac_rdc_table(np, i, first_rdc_table, 1);
4798 if (err)
4799 return err;
4800 }
4801
4802 return 0;
4803 }
4804
4805 static int niu_rx_channel_reset(struct niu *np, int channel)
4806 {
4807 return niu_set_and_wait_clear(np, RXDMA_CFIG1(channel),
4808 RXDMA_CFIG1_RST, 1000, 10,
4809 "RXDMA_CFIG1");
4810 }
4811
4812 static int niu_rx_channel_lpage_init(struct niu *np, int channel)
4813 {
4814 u64 val;
4815
4816 nw64(RX_LOG_MASK1(channel), 0);
4817 nw64(RX_LOG_VAL1(channel), 0);
4818 nw64(RX_LOG_MASK2(channel), 0);
4819 nw64(RX_LOG_VAL2(channel), 0);
4820 nw64(RX_LOG_PAGE_RELO1(channel), 0);
4821 nw64(RX_LOG_PAGE_RELO2(channel), 0);
4822 nw64(RX_LOG_PAGE_HDL(channel), 0);
4823
4824 val = (u64)np->port << RX_LOG_PAGE_VLD_FUNC_SHIFT;
4825 val |= (RX_LOG_PAGE_VLD_PAGE0 | RX_LOG_PAGE_VLD_PAGE1);
4826 nw64(RX_LOG_PAGE_VLD(channel), val);
4827
4828 return 0;
4829 }
4830
4831 static void niu_rx_channel_wred_init(struct niu *np, struct rx_ring_info *rp)
4832 {
4833 u64 val;
4834
4835 val = (((u64)rp->nonsyn_window << RDC_RED_PARA_WIN_SHIFT) |
4836 ((u64)rp->nonsyn_threshold << RDC_RED_PARA_THRE_SHIFT) |
4837 ((u64)rp->syn_window << RDC_RED_PARA_WIN_SYN_SHIFT) |
4838 ((u64)rp->syn_threshold << RDC_RED_PARA_THRE_SYN_SHIFT));
4839 nw64(RDC_RED_PARA(rp->rx_channel), val);
4840 }
4841
4842 static int niu_compute_rbr_cfig_b(struct rx_ring_info *rp, u64 *ret)
4843 {
4844 u64 val = 0;
4845
4846 *ret = 0;
4847 switch (rp->rbr_block_size) {
4848 case 4 * 1024:
4849 val |= (RBR_BLKSIZE_4K << RBR_CFIG_B_BLKSIZE_SHIFT);
4850 break;
4851 case 8 * 1024:
4852 val |= (RBR_BLKSIZE_8K << RBR_CFIG_B_BLKSIZE_SHIFT);
4853 break;
4854 case 16 * 1024:
4855 val |= (RBR_BLKSIZE_16K << RBR_CFIG_B_BLKSIZE_SHIFT);
4856 break;
4857 case 32 * 1024:
4858 val |= (RBR_BLKSIZE_32K << RBR_CFIG_B_BLKSIZE_SHIFT);
4859 break;
4860 default:
4861 return -EINVAL;
4862 }
4863 val |= RBR_CFIG_B_VLD2;
4864 switch (rp->rbr_sizes[2]) {
4865 case 2 * 1024:
4866 val |= (RBR_BUFSZ2_2K << RBR_CFIG_B_BUFSZ2_SHIFT);
4867 break;
4868 case 4 * 1024:
4869 val |= (RBR_BUFSZ2_4K << RBR_CFIG_B_BUFSZ2_SHIFT);
4870 break;
4871 case 8 * 1024:
4872 val |= (RBR_BUFSZ2_8K << RBR_CFIG_B_BUFSZ2_SHIFT);
4873 break;
4874 case 16 * 1024:
4875 val |= (RBR_BUFSZ2_16K << RBR_CFIG_B_BUFSZ2_SHIFT);
4876 break;
4877
4878 default:
4879 return -EINVAL;
4880 }
4881 val |= RBR_CFIG_B_VLD1;
4882 switch (rp->rbr_sizes[1]) {
4883 case 1 * 1024:
4884 val |= (RBR_BUFSZ1_1K << RBR_CFIG_B_BUFSZ1_SHIFT);
4885 break;
4886 case 2 * 1024:
4887 val |= (RBR_BUFSZ1_2K << RBR_CFIG_B_BUFSZ1_SHIFT);
4888 break;
4889 case 4 * 1024:
4890 val |= (RBR_BUFSZ1_4K << RBR_CFIG_B_BUFSZ1_SHIFT);
4891 break;
4892 case 8 * 1024:
4893 val |= (RBR_BUFSZ1_8K << RBR_CFIG_B_BUFSZ1_SHIFT);
4894 break;
4895
4896 default:
4897 return -EINVAL;
4898 }
4899 val |= RBR_CFIG_B_VLD0;
4900 switch (rp->rbr_sizes[0]) {
4901 case 256:
4902 val |= (RBR_BUFSZ0_256 << RBR_CFIG_B_BUFSZ0_SHIFT);
4903 break;
4904 case 512:
4905 val |= (RBR_BUFSZ0_512 << RBR_CFIG_B_BUFSZ0_SHIFT);
4906 break;
4907 case 1 * 1024:
4908 val |= (RBR_BUFSZ0_1K << RBR_CFIG_B_BUFSZ0_SHIFT);
4909 break;
4910 case 2 * 1024:
4911 val |= (RBR_BUFSZ0_2K << RBR_CFIG_B_BUFSZ0_SHIFT);
4912 break;
4913
4914 default:
4915 return -EINVAL;
4916 }
4917
4918 *ret = val;
4919 return 0;
4920 }
4921
4922 static int niu_enable_rx_channel(struct niu *np, int channel, int on)
4923 {
4924 u64 val = nr64(RXDMA_CFIG1(channel));
4925 int limit;
4926
4927 if (on)
4928 val |= RXDMA_CFIG1_EN;
4929 else
4930 val &= ~RXDMA_CFIG1_EN;
4931 nw64(RXDMA_CFIG1(channel), val);
4932
4933 limit = 1000;
4934 while (--limit > 0) {
4935 if (nr64(RXDMA_CFIG1(channel)) & RXDMA_CFIG1_QST)
4936 break;
4937 udelay(10);
4938 }
4939 if (limit <= 0)
4940 return -ENODEV;
4941 return 0;
4942 }
4943
4944 static int niu_init_one_rx_channel(struct niu *np, struct rx_ring_info *rp)
4945 {
4946 int err, channel = rp->rx_channel;
4947 u64 val;
4948
4949 err = niu_rx_channel_reset(np, channel);
4950 if (err)
4951 return err;
4952
4953 err = niu_rx_channel_lpage_init(np, channel);
4954 if (err)
4955 return err;
4956
4957 niu_rx_channel_wred_init(np, rp);
4958
4959 nw64(RX_DMA_ENT_MSK(channel), RX_DMA_ENT_MSK_RBR_EMPTY);
4960 nw64(RX_DMA_CTL_STAT(channel),
4961 (RX_DMA_CTL_STAT_MEX |
4962 RX_DMA_CTL_STAT_RCRTHRES |
4963 RX_DMA_CTL_STAT_RCRTO |
4964 RX_DMA_CTL_STAT_RBR_EMPTY));
4965 nw64(RXDMA_CFIG1(channel), rp->mbox_dma >> 32);
4966 nw64(RXDMA_CFIG2(channel),
4967 ((rp->mbox_dma & RXDMA_CFIG2_MBADDR_L) |
4968 RXDMA_CFIG2_FULL_HDR));
4969 nw64(RBR_CFIG_A(channel),
4970 ((u64)rp->rbr_table_size << RBR_CFIG_A_LEN_SHIFT) |
4971 (rp->rbr_dma & (RBR_CFIG_A_STADDR_BASE | RBR_CFIG_A_STADDR)));
4972 err = niu_compute_rbr_cfig_b(rp, &val);
4973 if (err)
4974 return err;
4975 nw64(RBR_CFIG_B(channel), val);
4976 nw64(RCRCFIG_A(channel),
4977 ((u64)rp->rcr_table_size << RCRCFIG_A_LEN_SHIFT) |
4978 (rp->rcr_dma & (RCRCFIG_A_STADDR_BASE | RCRCFIG_A_STADDR)));
4979 nw64(RCRCFIG_B(channel),
4980 ((u64)rp->rcr_pkt_threshold << RCRCFIG_B_PTHRES_SHIFT) |
4981 RCRCFIG_B_ENTOUT |
4982 ((u64)rp->rcr_timeout << RCRCFIG_B_TIMEOUT_SHIFT));
4983
4984 err = niu_enable_rx_channel(np, channel, 1);
4985 if (err)
4986 return err;
4987
4988 nw64(RBR_KICK(channel), rp->rbr_index);
4989
4990 val = nr64(RX_DMA_CTL_STAT(channel));
4991 val |= RX_DMA_CTL_STAT_RBR_EMPTY;
4992 nw64(RX_DMA_CTL_STAT(channel), val);
4993
4994 return 0;
4995 }
4996
4997 static int niu_init_rx_channels(struct niu *np)
4998 {
4999 unsigned long flags;
5000 u64 seed = jiffies_64;
5001 int err, i;
5002
5003 niu_lock_parent(np, flags);
5004 nw64(RX_DMA_CK_DIV, np->parent->rxdma_clock_divider);
5005 nw64(RED_RAN_INIT, RED_RAN_INIT_OPMODE | (seed & RED_RAN_INIT_VAL));
5006 niu_unlock_parent(np, flags);
5007
5008 /* XXX RXDMA 32bit mode? XXX */
5009
5010 niu_init_rdc_groups(np);
5011 niu_init_drr_weight(np);
5012
5013 err = niu_init_hostinfo(np);
5014 if (err)
5015 return err;
5016
5017 for (i = 0; i < np->num_rx_rings; i++) {
5018 struct rx_ring_info *rp = &np->rx_rings[i];
5019
5020 err = niu_init_one_rx_channel(np, rp);
5021 if (err)
5022 return err;
5023 }
5024
5025 return 0;
5026 }
5027
5028 static int niu_set_ip_frag_rule(struct niu *np)
5029 {
5030 struct niu_parent *parent = np->parent;
5031 struct niu_classifier *cp = &np->clas;
5032 struct niu_tcam_entry *tp;
5033 int index, err;
5034
5035 index = cp->tcam_top;
5036 tp = &parent->tcam[index];
5037
5038 /* Note that the noport bit is the same in both ipv4 and
5039 * ipv6 format TCAM entries.
5040 */
5041 memset(tp, 0, sizeof(*tp));
5042 tp->key[1] = TCAM_V4KEY1_NOPORT;
5043 tp->key_mask[1] = TCAM_V4KEY1_NOPORT;
5044 tp->assoc_data = (TCAM_ASSOCDATA_TRES_USE_OFFSET |
5045 ((u64)0 << TCAM_ASSOCDATA_OFFSET_SHIFT));
5046 err = tcam_write(np, index, tp->key, tp->key_mask);
5047 if (err)
5048 return err;
5049 err = tcam_assoc_write(np, index, tp->assoc_data);
5050 if (err)
5051 return err;
5052 tp->valid = 1;
5053 cp->tcam_valid_entries++;
5054
5055 return 0;
5056 }
5057
5058 static int niu_init_classifier_hw(struct niu *np)
5059 {
5060 struct niu_parent *parent = np->parent;
5061 struct niu_classifier *cp = &np->clas;
5062 int i, err;
5063
5064 nw64(H1POLY, cp->h1_init);
5065 nw64(H2POLY, cp->h2_init);
5066
5067 err = niu_init_hostinfo(np);
5068 if (err)
5069 return err;
5070
5071 for (i = 0; i < ENET_VLAN_TBL_NUM_ENTRIES; i++) {
5072 struct niu_vlan_rdc *vp = &cp->vlan_mappings[i];
5073
5074 vlan_tbl_write(np, i, np->port,
5075 vp->vlan_pref, vp->rdc_num);
5076 }
5077
5078 for (i = 0; i < cp->num_alt_mac_mappings; i++) {
5079 struct niu_altmac_rdc *ap = &cp->alt_mac_mappings[i];
5080
5081 err = niu_set_alt_mac_rdc_table(np, ap->alt_mac_num,
5082 ap->rdc_num, ap->mac_pref);
5083 if (err)
5084 return err;
5085 }
5086
5087 for (i = CLASS_CODE_USER_PROG1; i <= CLASS_CODE_SCTP_IPV6; i++) {
5088 int index = i - CLASS_CODE_USER_PROG1;
5089
5090 err = niu_set_tcam_key(np, i, parent->tcam_key[index]);
5091 if (err)
5092 return err;
5093 err = niu_set_flow_key(np, i, parent->flow_key[index]);
5094 if (err)
5095 return err;
5096 }
5097
5098 err = niu_set_ip_frag_rule(np);
5099 if (err)
5100 return err;
5101
5102 tcam_enable(np, 1);
5103
5104 return 0;
5105 }
5106
5107 static int niu_zcp_write(struct niu *np, int index, u64 *data)
5108 {
5109 nw64(ZCP_RAM_DATA0, data[0]);
5110 nw64(ZCP_RAM_DATA1, data[1]);
5111 nw64(ZCP_RAM_DATA2, data[2]);
5112 nw64(ZCP_RAM_DATA3, data[3]);
5113 nw64(ZCP_RAM_DATA4, data[4]);
5114 nw64(ZCP_RAM_BE, ZCP_RAM_BE_VAL);
5115 nw64(ZCP_RAM_ACC,
5116 (ZCP_RAM_ACC_WRITE |
5117 (0 << ZCP_RAM_ACC_ZFCID_SHIFT) |
5118 (ZCP_RAM_SEL_CFIFO(np->port) << ZCP_RAM_ACC_RAM_SEL_SHIFT)));
5119
5120 return niu_wait_bits_clear(np, ZCP_RAM_ACC, ZCP_RAM_ACC_BUSY,
5121 1000, 100);
5122 }
5123
5124 static int niu_zcp_read(struct niu *np, int index, u64 *data)
5125 {
5126 int err;
5127
5128 err = niu_wait_bits_clear(np, ZCP_RAM_ACC, ZCP_RAM_ACC_BUSY,
5129 1000, 100);
5130 if (err) {
5131 netdev_err(np->dev, "ZCP read busy won't clear, ZCP_RAM_ACC[%llx]\n",
5132 (unsigned long long)nr64(ZCP_RAM_ACC));
5133 return err;
5134 }
5135
5136 nw64(ZCP_RAM_ACC,
5137 (ZCP_RAM_ACC_READ |
5138 (0 << ZCP_RAM_ACC_ZFCID_SHIFT) |
5139 (ZCP_RAM_SEL_CFIFO(np->port) << ZCP_RAM_ACC_RAM_SEL_SHIFT)));
5140
5141 err = niu_wait_bits_clear(np, ZCP_RAM_ACC, ZCP_RAM_ACC_BUSY,
5142 1000, 100);
5143 if (err) {
5144 netdev_err(np->dev, "ZCP read busy2 won't clear, ZCP_RAM_ACC[%llx]\n",
5145 (unsigned long long)nr64(ZCP_RAM_ACC));
5146 return err;
5147 }
5148
5149 data[0] = nr64(ZCP_RAM_DATA0);
5150 data[1] = nr64(ZCP_RAM_DATA1);
5151 data[2] = nr64(ZCP_RAM_DATA2);
5152 data[3] = nr64(ZCP_RAM_DATA3);
5153 data[4] = nr64(ZCP_RAM_DATA4);
5154
5155 return 0;
5156 }
5157
5158 static void niu_zcp_cfifo_reset(struct niu *np)
5159 {
5160 u64 val = nr64(RESET_CFIFO);
5161
5162 val |= RESET_CFIFO_RST(np->port);
5163 nw64(RESET_CFIFO, val);
5164 udelay(10);
5165
5166 val &= ~RESET_CFIFO_RST(np->port);
5167 nw64(RESET_CFIFO, val);
5168 }
5169
5170 static int niu_init_zcp(struct niu *np)
5171 {
5172 u64 data[5], rbuf[5];
5173 int i, max, err;
5174
5175 if (np->parent->plat_type != PLAT_TYPE_NIU) {
5176 if (np->port == 0 || np->port == 1)
5177 max = ATLAS_P0_P1_CFIFO_ENTRIES;
5178 else
5179 max = ATLAS_P2_P3_CFIFO_ENTRIES;
5180 } else
5181 max = NIU_CFIFO_ENTRIES;
5182
5183 data[0] = 0;
5184 data[1] = 0;
5185 data[2] = 0;
5186 data[3] = 0;
5187 data[4] = 0;
5188
5189 for (i = 0; i < max; i++) {
5190 err = niu_zcp_write(np, i, data);
5191 if (err)
5192 return err;
5193 err = niu_zcp_read(np, i, rbuf);
5194 if (err)
5195 return err;
5196 }
5197
5198 niu_zcp_cfifo_reset(np);
5199 nw64(CFIFO_ECC(np->port), 0);
5200 nw64(ZCP_INT_STAT, ZCP_INT_STAT_ALL);
5201 (void) nr64(ZCP_INT_STAT);
5202 nw64(ZCP_INT_MASK, ZCP_INT_MASK_ALL);
5203
5204 return 0;
5205 }
5206
5207 static void niu_ipp_write(struct niu *np, int index, u64 *data)
5208 {
5209 u64 val = nr64_ipp(IPP_CFIG);
5210
5211 nw64_ipp(IPP_CFIG, val | IPP_CFIG_DFIFO_PIO_W);
5212 nw64_ipp(IPP_DFIFO_WR_PTR, index);
5213 nw64_ipp(IPP_DFIFO_WR0, data[0]);
5214 nw64_ipp(IPP_DFIFO_WR1, data[1]);
5215 nw64_ipp(IPP_DFIFO_WR2, data[2]);
5216 nw64_ipp(IPP_DFIFO_WR3, data[3]);
5217 nw64_ipp(IPP_DFIFO_WR4, data[4]);
5218 nw64_ipp(IPP_CFIG, val & ~IPP_CFIG_DFIFO_PIO_W);
5219 }
5220
5221 static void niu_ipp_read(struct niu *np, int index, u64 *data)
5222 {
5223 nw64_ipp(IPP_DFIFO_RD_PTR, index);
5224 data[0] = nr64_ipp(IPP_DFIFO_RD0);
5225 data[1] = nr64_ipp(IPP_DFIFO_RD1);
5226 data[2] = nr64_ipp(IPP_DFIFO_RD2);
5227 data[3] = nr64_ipp(IPP_DFIFO_RD3);
5228 data[4] = nr64_ipp(IPP_DFIFO_RD4);
5229 }
5230
5231 static int niu_ipp_reset(struct niu *np)
5232 {
5233 return niu_set_and_wait_clear_ipp(np, IPP_CFIG, IPP_CFIG_SOFT_RST,
5234 1000, 100, "IPP_CFIG");
5235 }
5236
5237 static int niu_init_ipp(struct niu *np)
5238 {
5239 u64 data[5], rbuf[5], val;
5240 int i, max, err;
5241
5242 if (np->parent->plat_type != PLAT_TYPE_NIU) {
5243 if (np->port == 0 || np->port == 1)
5244 max = ATLAS_P0_P1_DFIFO_ENTRIES;
5245 else
5246 max = ATLAS_P2_P3_DFIFO_ENTRIES;
5247 } else
5248 max = NIU_DFIFO_ENTRIES;
5249
5250 data[0] = 0;
5251 data[1] = 0;
5252 data[2] = 0;
5253 data[3] = 0;
5254 data[4] = 0;
5255
5256 for (i = 0; i < max; i++) {
5257 niu_ipp_write(np, i, data);
5258 niu_ipp_read(np, i, rbuf);
5259 }
5260
5261 (void) nr64_ipp(IPP_INT_STAT);
5262 (void) nr64_ipp(IPP_INT_STAT);
5263
5264 err = niu_ipp_reset(np);
5265 if (err)
5266 return err;
5267
5268 (void) nr64_ipp(IPP_PKT_DIS);
5269 (void) nr64_ipp(IPP_BAD_CS_CNT);
5270 (void) nr64_ipp(IPP_ECC);
5271
5272 (void) nr64_ipp(IPP_INT_STAT);
5273
5274 nw64_ipp(IPP_MSK, ~IPP_MSK_ALL);
5275
5276 val = nr64_ipp(IPP_CFIG);
5277 val &= ~IPP_CFIG_IP_MAX_PKT;
5278 val |= (IPP_CFIG_IPP_ENABLE |
5279 IPP_CFIG_DFIFO_ECC_EN |
5280 IPP_CFIG_DROP_BAD_CRC |
5281 IPP_CFIG_CKSUM_EN |
5282 (0x1ffff << IPP_CFIG_IP_MAX_PKT_SHIFT));
5283 nw64_ipp(IPP_CFIG, val);
5284
5285 return 0;
5286 }
5287
5288 static void niu_handle_led(struct niu *np, int status)
5289 {
5290 u64 val;
5291 val = nr64_mac(XMAC_CONFIG);
5292
5293 if ((np->flags & NIU_FLAGS_10G) != 0 &&
5294 (np->flags & NIU_FLAGS_FIBER) != 0) {
5295 if (status) {
5296 val |= XMAC_CONFIG_LED_POLARITY;
5297 val &= ~XMAC_CONFIG_FORCE_LED_ON;
5298 } else {
5299 val |= XMAC_CONFIG_FORCE_LED_ON;
5300 val &= ~XMAC_CONFIG_LED_POLARITY;
5301 }
5302 }
5303
5304 nw64_mac(XMAC_CONFIG, val);
5305 }
5306
5307 static void niu_init_xif_xmac(struct niu *np)
5308 {
5309 struct niu_link_config *lp = &np->link_config;
5310 u64 val;
5311
5312 if (np->flags & NIU_FLAGS_XCVR_SERDES) {
5313 val = nr64(MIF_CONFIG);
5314 val |= MIF_CONFIG_ATCA_GE;
5315 nw64(MIF_CONFIG, val);
5316 }
5317
5318 val = nr64_mac(XMAC_CONFIG);
5319 val &= ~XMAC_CONFIG_SEL_POR_CLK_SRC;
5320
5321 val |= XMAC_CONFIG_TX_OUTPUT_EN;
5322
5323 if (lp->loopback_mode == LOOPBACK_MAC) {
5324 val &= ~XMAC_CONFIG_SEL_POR_CLK_SRC;
5325 val |= XMAC_CONFIG_LOOPBACK;
5326 } else {
5327 val &= ~XMAC_CONFIG_LOOPBACK;
5328 }
5329
5330 if (np->flags & NIU_FLAGS_10G) {
5331 val &= ~XMAC_CONFIG_LFS_DISABLE;
5332 } else {
5333 val |= XMAC_CONFIG_LFS_DISABLE;
5334 if (!(np->flags & NIU_FLAGS_FIBER) &&
5335 !(np->flags & NIU_FLAGS_XCVR_SERDES))
5336 val |= XMAC_CONFIG_1G_PCS_BYPASS;
5337 else
5338 val &= ~XMAC_CONFIG_1G_PCS_BYPASS;
5339 }
5340
5341 val &= ~XMAC_CONFIG_10G_XPCS_BYPASS;
5342
5343 if (lp->active_speed == SPEED_100)
5344 val |= XMAC_CONFIG_SEL_CLK_25MHZ;
5345 else
5346 val &= ~XMAC_CONFIG_SEL_CLK_25MHZ;
5347
5348 nw64_mac(XMAC_CONFIG, val);
5349
5350 val = nr64_mac(XMAC_CONFIG);
5351 val &= ~XMAC_CONFIG_MODE_MASK;
5352 if (np->flags & NIU_FLAGS_10G) {
5353 val |= XMAC_CONFIG_MODE_XGMII;
5354 } else {
5355 if (lp->active_speed == SPEED_1000)
5356 val |= XMAC_CONFIG_MODE_GMII;
5357 else
5358 val |= XMAC_CONFIG_MODE_MII;
5359 }
5360
5361 nw64_mac(XMAC_CONFIG, val);
5362 }
5363
5364 static void niu_init_xif_bmac(struct niu *np)
5365 {
5366 struct niu_link_config *lp = &np->link_config;
5367 u64 val;
5368
5369 val = BMAC_XIF_CONFIG_TX_OUTPUT_EN;
5370
5371 if (lp->loopback_mode == LOOPBACK_MAC)
5372 val |= BMAC_XIF_CONFIG_MII_LOOPBACK;
5373 else
5374 val &= ~BMAC_XIF_CONFIG_MII_LOOPBACK;
5375
5376 if (lp->active_speed == SPEED_1000)
5377 val |= BMAC_XIF_CONFIG_GMII_MODE;
5378 else
5379 val &= ~BMAC_XIF_CONFIG_GMII_MODE;
5380
5381 val &= ~(BMAC_XIF_CONFIG_LINK_LED |
5382 BMAC_XIF_CONFIG_LED_POLARITY);
5383
5384 if (!(np->flags & NIU_FLAGS_10G) &&
5385 !(np->flags & NIU_FLAGS_FIBER) &&
5386 lp->active_speed == SPEED_100)
5387 val |= BMAC_XIF_CONFIG_25MHZ_CLOCK;
5388 else
5389 val &= ~BMAC_XIF_CONFIG_25MHZ_CLOCK;
5390
5391 nw64_mac(BMAC_XIF_CONFIG, val);
5392 }
5393
5394 static void niu_init_xif(struct niu *np)
5395 {
5396 if (np->flags & NIU_FLAGS_XMAC)
5397 niu_init_xif_xmac(np);
5398 else
5399 niu_init_xif_bmac(np);
5400 }
5401
5402 static void niu_pcs_mii_reset(struct niu *np)
5403 {
5404 int limit = 1000;
5405 u64 val = nr64_pcs(PCS_MII_CTL);
5406 val |= PCS_MII_CTL_RST;
5407 nw64_pcs(PCS_MII_CTL, val);
5408 while ((--limit >= 0) && (val & PCS_MII_CTL_RST)) {
5409 udelay(100);
5410 val = nr64_pcs(PCS_MII_CTL);
5411 }
5412 }
5413
5414 static void niu_xpcs_reset(struct niu *np)
5415 {
5416 int limit = 1000;
5417 u64 val = nr64_xpcs(XPCS_CONTROL1);
5418 val |= XPCS_CONTROL1_RESET;
5419 nw64_xpcs(XPCS_CONTROL1, val);
5420 while ((--limit >= 0) && (val & XPCS_CONTROL1_RESET)) {
5421 udelay(100);
5422 val = nr64_xpcs(XPCS_CONTROL1);
5423 }
5424 }
5425
5426 static int niu_init_pcs(struct niu *np)
5427 {
5428 struct niu_link_config *lp = &np->link_config;
5429 u64 val;
5430
5431 switch (np->flags & (NIU_FLAGS_10G |
5432 NIU_FLAGS_FIBER |
5433 NIU_FLAGS_XCVR_SERDES)) {
5434 case NIU_FLAGS_FIBER:
5435 /* 1G fiber */
5436 nw64_pcs(PCS_CONF, PCS_CONF_MASK | PCS_CONF_ENABLE);
5437 nw64_pcs(PCS_DPATH_MODE, 0);
5438 niu_pcs_mii_reset(np);
5439 break;
5440
5441 case NIU_FLAGS_10G:
5442 case NIU_FLAGS_10G | NIU_FLAGS_FIBER:
5443 case NIU_FLAGS_10G | NIU_FLAGS_XCVR_SERDES:
5444 /* 10G SERDES */
5445 if (!(np->flags & NIU_FLAGS_XMAC))
5446 return -EINVAL;
5447
5448 /* 10G copper or fiber */
5449 val = nr64_mac(XMAC_CONFIG);
5450 val &= ~XMAC_CONFIG_10G_XPCS_BYPASS;
5451 nw64_mac(XMAC_CONFIG, val);
5452
5453 niu_xpcs_reset(np);
5454
5455 val = nr64_xpcs(XPCS_CONTROL1);
5456 if (lp->loopback_mode == LOOPBACK_PHY)
5457 val |= XPCS_CONTROL1_LOOPBACK;
5458 else
5459 val &= ~XPCS_CONTROL1_LOOPBACK;
5460 nw64_xpcs(XPCS_CONTROL1, val);
5461
5462 nw64_xpcs(XPCS_DESKEW_ERR_CNT, 0);
5463 (void) nr64_xpcs(XPCS_SYMERR_CNT01);
5464 (void) nr64_xpcs(XPCS_SYMERR_CNT23);
5465 break;
5466
5467
5468 case NIU_FLAGS_XCVR_SERDES:
5469 /* 1G SERDES */
5470 niu_pcs_mii_reset(np);
5471 nw64_pcs(PCS_CONF, PCS_CONF_MASK | PCS_CONF_ENABLE);
5472 nw64_pcs(PCS_DPATH_MODE, 0);
5473 break;
5474
5475 case 0:
5476 /* 1G copper */
5477 case NIU_FLAGS_XCVR_SERDES | NIU_FLAGS_FIBER:
5478 /* 1G RGMII FIBER */
5479 nw64_pcs(PCS_DPATH_MODE, PCS_DPATH_MODE_MII);
5480 niu_pcs_mii_reset(np);
5481 break;
5482
5483 default:
5484 return -EINVAL;
5485 }
5486
5487 return 0;
5488 }
5489
5490 static int niu_reset_tx_xmac(struct niu *np)
5491 {
5492 return niu_set_and_wait_clear_mac(np, XTXMAC_SW_RST,
5493 (XTXMAC_SW_RST_REG_RS |
5494 XTXMAC_SW_RST_SOFT_RST),
5495 1000, 100, "XTXMAC_SW_RST");
5496 }
5497
5498 static int niu_reset_tx_bmac(struct niu *np)
5499 {
5500 int limit;
5501
5502 nw64_mac(BTXMAC_SW_RST, BTXMAC_SW_RST_RESET);
5503 limit = 1000;
5504 while (--limit >= 0) {
5505 if (!(nr64_mac(BTXMAC_SW_RST) & BTXMAC_SW_RST_RESET))
5506 break;
5507 udelay(100);
5508 }
5509 if (limit < 0) {
5510 dev_err(np->device, "Port %u TX BMAC would not reset, BTXMAC_SW_RST[%llx]\n",
5511 np->port,
5512 (unsigned long long) nr64_mac(BTXMAC_SW_RST));
5513 return -ENODEV;
5514 }
5515
5516 return 0;
5517 }
5518
5519 static int niu_reset_tx_mac(struct niu *np)
5520 {
5521 if (np->flags & NIU_FLAGS_XMAC)
5522 return niu_reset_tx_xmac(np);
5523 else
5524 return niu_reset_tx_bmac(np);
5525 }
5526
5527 static void niu_init_tx_xmac(struct niu *np, u64 min, u64 max)
5528 {
5529 u64 val;
5530
5531 val = nr64_mac(XMAC_MIN);
5532 val &= ~(XMAC_MIN_TX_MIN_PKT_SIZE |
5533 XMAC_MIN_RX_MIN_PKT_SIZE);
5534 val |= (min << XMAC_MIN_RX_MIN_PKT_SIZE_SHFT);
5535 val |= (min << XMAC_MIN_TX_MIN_PKT_SIZE_SHFT);
5536 nw64_mac(XMAC_MIN, val);
5537
5538 nw64_mac(XMAC_MAX, max);
5539
5540 nw64_mac(XTXMAC_STAT_MSK, ~(u64)0);
5541
5542 val = nr64_mac(XMAC_IPG);
5543 if (np->flags & NIU_FLAGS_10G) {
5544 val &= ~XMAC_IPG_IPG_XGMII;
5545 val |= (IPG_12_15_XGMII << XMAC_IPG_IPG_XGMII_SHIFT);
5546 } else {
5547 val &= ~XMAC_IPG_IPG_MII_GMII;
5548 val |= (IPG_12_MII_GMII << XMAC_IPG_IPG_MII_GMII_SHIFT);
5549 }
5550 nw64_mac(XMAC_IPG, val);
5551
5552 val = nr64_mac(XMAC_CONFIG);
5553 val &= ~(XMAC_CONFIG_ALWAYS_NO_CRC |
5554 XMAC_CONFIG_STRETCH_MODE |
5555 XMAC_CONFIG_VAR_MIN_IPG_EN |
5556 XMAC_CONFIG_TX_ENABLE);
5557 nw64_mac(XMAC_CONFIG, val);
5558
5559 nw64_mac(TXMAC_FRM_CNT, 0);
5560 nw64_mac(TXMAC_BYTE_CNT, 0);
5561 }
5562
5563 static void niu_init_tx_bmac(struct niu *np, u64 min, u64 max)
5564 {
5565 u64 val;
5566
5567 nw64_mac(BMAC_MIN_FRAME, min);
5568 nw64_mac(BMAC_MAX_FRAME, max);
5569
5570 nw64_mac(BTXMAC_STATUS_MASK, ~(u64)0);
5571 nw64_mac(BMAC_CTRL_TYPE, 0x8808);
5572 nw64_mac(BMAC_PREAMBLE_SIZE, 7);
5573
5574 val = nr64_mac(BTXMAC_CONFIG);
5575 val &= ~(BTXMAC_CONFIG_FCS_DISABLE |
5576 BTXMAC_CONFIG_ENABLE);
5577 nw64_mac(BTXMAC_CONFIG, val);
5578 }
5579
5580 static void niu_init_tx_mac(struct niu *np)
5581 {
5582 u64 min, max;
5583
5584 min = 64;
5585 if (np->dev->mtu > ETH_DATA_LEN)
5586 max = 9216;
5587 else
5588 max = 1522;
5589
5590 /* The XMAC_MIN register only accepts values for TX min which
5591 * have the low 3 bits cleared.
5592 */
5593 BUG_ON(min & 0x7);
5594
5595 if (np->flags & NIU_FLAGS_XMAC)
5596 niu_init_tx_xmac(np, min, max);
5597 else
5598 niu_init_tx_bmac(np, min, max);
5599 }
5600
5601 static int niu_reset_rx_xmac(struct niu *np)
5602 {
5603 int limit;
5604
5605 nw64_mac(XRXMAC_SW_RST,
5606 XRXMAC_SW_RST_REG_RS | XRXMAC_SW_RST_SOFT_RST);
5607 limit = 1000;
5608 while (--limit >= 0) {
5609 if (!(nr64_mac(XRXMAC_SW_RST) & (XRXMAC_SW_RST_REG_RS |
5610 XRXMAC_SW_RST_SOFT_RST)))
5611 break;
5612 udelay(100);
5613 }
5614 if (limit < 0) {
5615 dev_err(np->device, "Port %u RX XMAC would not reset, XRXMAC_SW_RST[%llx]\n",
5616 np->port,
5617 (unsigned long long) nr64_mac(XRXMAC_SW_RST));
5618 return -ENODEV;
5619 }
5620
5621 return 0;
5622 }
5623
5624 static int niu_reset_rx_bmac(struct niu *np)
5625 {
5626 int limit;
5627
5628 nw64_mac(BRXMAC_SW_RST, BRXMAC_SW_RST_RESET);
5629 limit = 1000;
5630 while (--limit >= 0) {
5631 if (!(nr64_mac(BRXMAC_SW_RST) & BRXMAC_SW_RST_RESET))
5632 break;
5633 udelay(100);
5634 }
5635 if (limit < 0) {
5636 dev_err(np->device, "Port %u RX BMAC would not reset, BRXMAC_SW_RST[%llx]\n",
5637 np->port,
5638 (unsigned long long) nr64_mac(BRXMAC_SW_RST));
5639 return -ENODEV;
5640 }
5641
5642 return 0;
5643 }
5644
5645 static int niu_reset_rx_mac(struct niu *np)
5646 {
5647 if (np->flags & NIU_FLAGS_XMAC)
5648 return niu_reset_rx_xmac(np);
5649 else
5650 return niu_reset_rx_bmac(np);
5651 }
5652
5653 static void niu_init_rx_xmac(struct niu *np)
5654 {
5655 struct niu_parent *parent = np->parent;
5656 struct niu_rdc_tables *tp = &parent->rdc_group_cfg[np->port];
5657 int first_rdc_table = tp->first_table_num;
5658 unsigned long i;
5659 u64 val;
5660
5661 nw64_mac(XMAC_ADD_FILT0, 0);
5662 nw64_mac(XMAC_ADD_FILT1, 0);
5663 nw64_mac(XMAC_ADD_FILT2, 0);
5664 nw64_mac(XMAC_ADD_FILT12_MASK, 0);
5665 nw64_mac(XMAC_ADD_FILT00_MASK, 0);
5666 for (i = 0; i < MAC_NUM_HASH; i++)
5667 nw64_mac(XMAC_HASH_TBL(i), 0);
5668 nw64_mac(XRXMAC_STAT_MSK, ~(u64)0);
5669 niu_set_primary_mac_rdc_table(np, first_rdc_table, 1);
5670 niu_set_multicast_mac_rdc_table(np, first_rdc_table, 1);
5671
5672 val = nr64_mac(XMAC_CONFIG);
5673 val &= ~(XMAC_CONFIG_RX_MAC_ENABLE |
5674 XMAC_CONFIG_PROMISCUOUS |
5675 XMAC_CONFIG_PROMISC_GROUP |
5676 XMAC_CONFIG_ERR_CHK_DIS |
5677 XMAC_CONFIG_RX_CRC_CHK_DIS |
5678 XMAC_CONFIG_RESERVED_MULTICAST |
5679 XMAC_CONFIG_RX_CODEV_CHK_DIS |
5680 XMAC_CONFIG_ADDR_FILTER_EN |
5681 XMAC_CONFIG_RCV_PAUSE_ENABLE |
5682 XMAC_CONFIG_STRIP_CRC |
5683 XMAC_CONFIG_PASS_FLOW_CTRL |
5684 XMAC_CONFIG_MAC2IPP_PKT_CNT_EN);
5685 val |= (XMAC_CONFIG_HASH_FILTER_EN);
5686 nw64_mac(XMAC_CONFIG, val);
5687
5688 nw64_mac(RXMAC_BT_CNT, 0);
5689 nw64_mac(RXMAC_BC_FRM_CNT, 0);
5690 nw64_mac(RXMAC_MC_FRM_CNT, 0);
5691 nw64_mac(RXMAC_FRAG_CNT, 0);
5692 nw64_mac(RXMAC_HIST_CNT1, 0);
5693 nw64_mac(RXMAC_HIST_CNT2, 0);
5694 nw64_mac(RXMAC_HIST_CNT3, 0);
5695 nw64_mac(RXMAC_HIST_CNT4, 0);
5696 nw64_mac(RXMAC_HIST_CNT5, 0);
5697 nw64_mac(RXMAC_HIST_CNT6, 0);
5698 nw64_mac(RXMAC_HIST_CNT7, 0);
5699 nw64_mac(RXMAC_MPSZER_CNT, 0);
5700 nw64_mac(RXMAC_CRC_ER_CNT, 0);
5701 nw64_mac(RXMAC_CD_VIO_CNT, 0);
5702 nw64_mac(LINK_FAULT_CNT, 0);
5703 }
5704
5705 static void niu_init_rx_bmac(struct niu *np)
5706 {
5707 struct niu_parent *parent = np->parent;
5708 struct niu_rdc_tables *tp = &parent->rdc_group_cfg[np->port];
5709 int first_rdc_table = tp->first_table_num;
5710 unsigned long i;
5711 u64 val;
5712
5713 nw64_mac(BMAC_ADD_FILT0, 0);
5714 nw64_mac(BMAC_ADD_FILT1, 0);
5715 nw64_mac(BMAC_ADD_FILT2, 0);
5716 nw64_mac(BMAC_ADD_FILT12_MASK, 0);
5717 nw64_mac(BMAC_ADD_FILT00_MASK, 0);
5718 for (i = 0; i < MAC_NUM_HASH; i++)
5719 nw64_mac(BMAC_HASH_TBL(i), 0);
5720 niu_set_primary_mac_rdc_table(np, first_rdc_table, 1);
5721 niu_set_multicast_mac_rdc_table(np, first_rdc_table, 1);
5722 nw64_mac(BRXMAC_STATUS_MASK, ~(u64)0);
5723
5724 val = nr64_mac(BRXMAC_CONFIG);
5725 val &= ~(BRXMAC_CONFIG_ENABLE |
5726 BRXMAC_CONFIG_STRIP_PAD |
5727 BRXMAC_CONFIG_STRIP_FCS |
5728 BRXMAC_CONFIG_PROMISC |
5729 BRXMAC_CONFIG_PROMISC_GRP |
5730 BRXMAC_CONFIG_ADDR_FILT_EN |
5731 BRXMAC_CONFIG_DISCARD_DIS);
5732 val |= (BRXMAC_CONFIG_HASH_FILT_EN);
5733 nw64_mac(BRXMAC_CONFIG, val);
5734
5735 val = nr64_mac(BMAC_ADDR_CMPEN);
5736 val |= BMAC_ADDR_CMPEN_EN0;
5737 nw64_mac(BMAC_ADDR_CMPEN, val);
5738 }
5739
5740 static void niu_init_rx_mac(struct niu *np)
5741 {
5742 niu_set_primary_mac(np, np->dev->dev_addr);
5743
5744 if (np->flags & NIU_FLAGS_XMAC)
5745 niu_init_rx_xmac(np);
5746 else
5747 niu_init_rx_bmac(np);
5748 }
5749
5750 static void niu_enable_tx_xmac(struct niu *np, int on)
5751 {
5752 u64 val = nr64_mac(XMAC_CONFIG);
5753
5754 if (on)
5755 val |= XMAC_CONFIG_TX_ENABLE;
5756 else
5757 val &= ~XMAC_CONFIG_TX_ENABLE;
5758 nw64_mac(XMAC_CONFIG, val);
5759 }
5760
5761 static void niu_enable_tx_bmac(struct niu *np, int on)
5762 {
5763 u64 val = nr64_mac(BTXMAC_CONFIG);
5764
5765 if (on)
5766 val |= BTXMAC_CONFIG_ENABLE;
5767 else
5768 val &= ~BTXMAC_CONFIG_ENABLE;
5769 nw64_mac(BTXMAC_CONFIG, val);
5770 }
5771
5772 static void niu_enable_tx_mac(struct niu *np, int on)
5773 {
5774 if (np->flags & NIU_FLAGS_XMAC)
5775 niu_enable_tx_xmac(np, on);
5776 else
5777 niu_enable_tx_bmac(np, on);
5778 }
5779
5780 static void niu_enable_rx_xmac(struct niu *np, int on)
5781 {
5782 u64 val = nr64_mac(XMAC_CONFIG);
5783
5784 val &= ~(XMAC_CONFIG_HASH_FILTER_EN |
5785 XMAC_CONFIG_PROMISCUOUS);
5786
5787 if (np->flags & NIU_FLAGS_MCAST)
5788 val |= XMAC_CONFIG_HASH_FILTER_EN;
5789 if (np->flags & NIU_FLAGS_PROMISC)
5790 val |= XMAC_CONFIG_PROMISCUOUS;
5791
5792 if (on)
5793 val |= XMAC_CONFIG_RX_MAC_ENABLE;
5794 else
5795 val &= ~XMAC_CONFIG_RX_MAC_ENABLE;
5796 nw64_mac(XMAC_CONFIG, val);
5797 }
5798
5799 static void niu_enable_rx_bmac(struct niu *np, int on)
5800 {
5801 u64 val = nr64_mac(BRXMAC_CONFIG);
5802
5803 val &= ~(BRXMAC_CONFIG_HASH_FILT_EN |
5804 BRXMAC_CONFIG_PROMISC);
5805
5806 if (np->flags & NIU_FLAGS_MCAST)
5807 val |= BRXMAC_CONFIG_HASH_FILT_EN;
5808 if (np->flags & NIU_FLAGS_PROMISC)
5809 val |= BRXMAC_CONFIG_PROMISC;
5810
5811 if (on)
5812 val |= BRXMAC_CONFIG_ENABLE;
5813 else
5814 val &= ~BRXMAC_CONFIG_ENABLE;
5815 nw64_mac(BRXMAC_CONFIG, val);
5816 }
5817
5818 static void niu_enable_rx_mac(struct niu *np, int on)
5819 {
5820 if (np->flags & NIU_FLAGS_XMAC)
5821 niu_enable_rx_xmac(np, on);
5822 else
5823 niu_enable_rx_bmac(np, on);
5824 }
5825
5826 static int niu_init_mac(struct niu *np)
5827 {
5828 int err;
5829
5830 niu_init_xif(np);
5831 err = niu_init_pcs(np);
5832 if (err)
5833 return err;
5834
5835 err = niu_reset_tx_mac(np);
5836 if (err)
5837 return err;
5838 niu_init_tx_mac(np);
5839 err = niu_reset_rx_mac(np);
5840 if (err)
5841 return err;
5842 niu_init_rx_mac(np);
5843
5844 /* This looks hookey but the RX MAC reset we just did will
5845 * undo some of the state we setup in niu_init_tx_mac() so we
5846 * have to call it again. In particular, the RX MAC reset will
5847 * set the XMAC_MAX register back to it's default value.
5848 */
5849 niu_init_tx_mac(np);
5850 niu_enable_tx_mac(np, 1);
5851
5852 niu_enable_rx_mac(np, 1);
5853
5854 return 0;
5855 }
5856
5857 static void niu_stop_one_tx_channel(struct niu *np, struct tx_ring_info *rp)
5858 {
5859 (void) niu_tx_channel_stop(np, rp->tx_channel);
5860 }
5861
5862 static void niu_stop_tx_channels(struct niu *np)
5863 {
5864 int i;
5865
5866 for (i = 0; i < np->num_tx_rings; i++) {
5867 struct tx_ring_info *rp = &np->tx_rings[i];
5868
5869 niu_stop_one_tx_channel(np, rp);
5870 }
5871 }
5872
5873 static void niu_reset_one_tx_channel(struct niu *np, struct tx_ring_info *rp)
5874 {
5875 (void) niu_tx_channel_reset(np, rp->tx_channel);
5876 }
5877
5878 static void niu_reset_tx_channels(struct niu *np)
5879 {
5880 int i;
5881
5882 for (i = 0; i < np->num_tx_rings; i++) {
5883 struct tx_ring_info *rp = &np->tx_rings[i];
5884
5885 niu_reset_one_tx_channel(np, rp);
5886 }
5887 }
5888
5889 static void niu_stop_one_rx_channel(struct niu *np, struct rx_ring_info *rp)
5890 {
5891 (void) niu_enable_rx_channel(np, rp->rx_channel, 0);
5892 }
5893
5894 static void niu_stop_rx_channels(struct niu *np)
5895 {
5896 int i;
5897
5898 for (i = 0; i < np->num_rx_rings; i++) {
5899 struct rx_ring_info *rp = &np->rx_rings[i];
5900
5901 niu_stop_one_rx_channel(np, rp);
5902 }
5903 }
5904
5905 static void niu_reset_one_rx_channel(struct niu *np, struct rx_ring_info *rp)
5906 {
5907 int channel = rp->rx_channel;
5908
5909 (void) niu_rx_channel_reset(np, channel);
5910 nw64(RX_DMA_ENT_MSK(channel), RX_DMA_ENT_MSK_ALL);
5911 nw64(RX_DMA_CTL_STAT(channel), 0);
5912 (void) niu_enable_rx_channel(np, channel, 0);
5913 }
5914
5915 static void niu_reset_rx_channels(struct niu *np)
5916 {
5917 int i;
5918
5919 for (i = 0; i < np->num_rx_rings; i++) {
5920 struct rx_ring_info *rp = &np->rx_rings[i];
5921
5922 niu_reset_one_rx_channel(np, rp);
5923 }
5924 }
5925
5926 static void niu_disable_ipp(struct niu *np)
5927 {
5928 u64 rd, wr, val;
5929 int limit;
5930
5931 rd = nr64_ipp(IPP_DFIFO_RD_PTR);
5932 wr = nr64_ipp(IPP_DFIFO_WR_PTR);
5933 limit = 100;
5934 while (--limit >= 0 && (rd != wr)) {
5935 rd = nr64_ipp(IPP_DFIFO_RD_PTR);
5936 wr = nr64_ipp(IPP_DFIFO_WR_PTR);
5937 }
5938 if (limit < 0 &&
5939 (rd != 0 && wr != 1)) {
5940 netdev_err(np->dev, "IPP would not quiesce, rd_ptr[%llx] wr_ptr[%llx]\n",
5941 (unsigned long long)nr64_ipp(IPP_DFIFO_RD_PTR),
5942 (unsigned long long)nr64_ipp(IPP_DFIFO_WR_PTR));
5943 }
5944
5945 val = nr64_ipp(IPP_CFIG);
5946 val &= ~(IPP_CFIG_IPP_ENABLE |
5947 IPP_CFIG_DFIFO_ECC_EN |
5948 IPP_CFIG_DROP_BAD_CRC |
5949 IPP_CFIG_CKSUM_EN);
5950 nw64_ipp(IPP_CFIG, val);
5951
5952 (void) niu_ipp_reset(np);
5953 }
5954
5955 static int niu_init_hw(struct niu *np)
5956 {
5957 int i, err;
5958
5959 netif_printk(np, ifup, KERN_DEBUG, np->dev, "Initialize TXC\n");
5960 niu_txc_enable_port(np, 1);
5961 niu_txc_port_dma_enable(np, 1);
5962 niu_txc_set_imask(np, 0);
5963
5964 netif_printk(np, ifup, KERN_DEBUG, np->dev, "Initialize TX channels\n");
5965 for (i = 0; i < np->num_tx_rings; i++) {
5966 struct tx_ring_info *rp = &np->tx_rings[i];
5967
5968 err = niu_init_one_tx_channel(np, rp);
5969 if (err)
5970 return err;
5971 }
5972
5973 netif_printk(np, ifup, KERN_DEBUG, np->dev, "Initialize RX channels\n");
5974 err = niu_init_rx_channels(np);
5975 if (err)
5976 goto out_uninit_tx_channels;
5977
5978 netif_printk(np, ifup, KERN_DEBUG, np->dev, "Initialize classifier\n");
5979 err = niu_init_classifier_hw(np);
5980 if (err)
5981 goto out_uninit_rx_channels;
5982
5983 netif_printk(np, ifup, KERN_DEBUG, np->dev, "Initialize ZCP\n");
5984 err = niu_init_zcp(np);
5985 if (err)
5986 goto out_uninit_rx_channels;
5987
5988 netif_printk(np, ifup, KERN_DEBUG, np->dev, "Initialize IPP\n");
5989 err = niu_init_ipp(np);
5990 if (err)
5991 goto out_uninit_rx_channels;
5992
5993 netif_printk(np, ifup, KERN_DEBUG, np->dev, "Initialize MAC\n");
5994 err = niu_init_mac(np);
5995 if (err)
5996 goto out_uninit_ipp;
5997
5998 return 0;
5999
6000 out_uninit_ipp:
6001 netif_printk(np, ifup, KERN_DEBUG, np->dev, "Uninit IPP\n");
6002 niu_disable_ipp(np);
6003
6004 out_uninit_rx_channels:
6005 netif_printk(np, ifup, KERN_DEBUG, np->dev, "Uninit RX channels\n");
6006 niu_stop_rx_channels(np);
6007 niu_reset_rx_channels(np);
6008
6009 out_uninit_tx_channels:
6010 netif_printk(np, ifup, KERN_DEBUG, np->dev, "Uninit TX channels\n");
6011 niu_stop_tx_channels(np);
6012 niu_reset_tx_channels(np);
6013
6014 return err;
6015 }
6016
6017 static void niu_stop_hw(struct niu *np)
6018 {
6019 netif_printk(np, ifdown, KERN_DEBUG, np->dev, "Disable interrupts\n");
6020 niu_enable_interrupts(np, 0);
6021
6022 netif_printk(np, ifdown, KERN_DEBUG, np->dev, "Disable RX MAC\n");
6023 niu_enable_rx_mac(np, 0);
6024
6025 netif_printk(np, ifdown, KERN_DEBUG, np->dev, "Disable IPP\n");
6026 niu_disable_ipp(np);
6027
6028 netif_printk(np, ifdown, KERN_DEBUG, np->dev, "Stop TX channels\n");
6029 niu_stop_tx_channels(np);
6030
6031 netif_printk(np, ifdown, KERN_DEBUG, np->dev, "Stop RX channels\n");
6032 niu_stop_rx_channels(np);
6033
6034 netif_printk(np, ifdown, KERN_DEBUG, np->dev, "Reset TX channels\n");
6035 niu_reset_tx_channels(np);
6036
6037 netif_printk(np, ifdown, KERN_DEBUG, np->dev, "Reset RX channels\n");
6038 niu_reset_rx_channels(np);
6039 }
6040
6041 static void niu_set_irq_name(struct niu *np)
6042 {
6043 int port = np->port;
6044 int i, j = 1;
6045
6046 sprintf(np->irq_name[0], "%s:MAC", np->dev->name);
6047
6048 if (port == 0) {
6049 sprintf(np->irq_name[1], "%s:MIF", np->dev->name);
6050 sprintf(np->irq_name[2], "%s:SYSERR", np->dev->name);
6051 j = 3;
6052 }
6053
6054 for (i = 0; i < np->num_ldg - j; i++) {
6055 if (i < np->num_rx_rings)
6056 sprintf(np->irq_name[i+j], "%s-rx-%d",
6057 np->dev->name, i);
6058 else if (i < np->num_tx_rings + np->num_rx_rings)
6059 sprintf(np->irq_name[i+j], "%s-tx-%d", np->dev->name,
6060 i - np->num_rx_rings);
6061 }
6062 }
6063
6064 static int niu_request_irq(struct niu *np)
6065 {
6066 int i, j, err;
6067
6068 niu_set_irq_name(np);
6069
6070 err = 0;
6071 for (i = 0; i < np->num_ldg; i++) {
6072 struct niu_ldg *lp = &np->ldg[i];
6073
6074 err = request_irq(lp->irq, niu_interrupt,
6075 IRQF_SHARED | IRQF_SAMPLE_RANDOM,
6076 np->irq_name[i], lp);
6077 if (err)
6078 goto out_free_irqs;
6079
6080 }
6081
6082 return 0;
6083
6084 out_free_irqs:
6085 for (j = 0; j < i; j++) {
6086 struct niu_ldg *lp = &np->ldg[j];
6087
6088 free_irq(lp->irq, lp);
6089 }
6090 return err;
6091 }
6092
6093 static void niu_free_irq(struct niu *np)
6094 {
6095 int i;
6096
6097 for (i = 0; i < np->num_ldg; i++) {
6098 struct niu_ldg *lp = &np->ldg[i];
6099
6100 free_irq(lp->irq, lp);
6101 }
6102 }
6103
6104 static void niu_enable_napi(struct niu *np)
6105 {
6106 int i;
6107
6108 for (i = 0; i < np->num_ldg; i++)
6109 napi_enable(&np->ldg[i].napi);
6110 }
6111
6112 static void niu_disable_napi(struct niu *np)
6113 {
6114 int i;
6115
6116 for (i = 0; i < np->num_ldg; i++)
6117 napi_disable(&np->ldg[i].napi);
6118 }
6119
6120 static int niu_open(struct net_device *dev)
6121 {
6122 struct niu *np = netdev_priv(dev);
6123 int err;
6124
6125 netif_carrier_off(dev);
6126
6127 err = niu_alloc_channels(np);
6128 if (err)
6129 goto out_err;
6130
6131 err = niu_enable_interrupts(np, 0);
6132 if (err)
6133 goto out_free_channels;
6134
6135 err = niu_request_irq(np);
6136 if (err)
6137 goto out_free_channels;
6138
6139 niu_enable_napi(np);
6140
6141 spin_lock_irq(&np->lock);
6142
6143 err = niu_init_hw(np);
6144 if (!err) {
6145 init_timer(&np->timer);
6146 np->timer.expires = jiffies + HZ;
6147 np->timer.data = (unsigned long) np;
6148 np->timer.function = niu_timer;
6149
6150 err = niu_enable_interrupts(np, 1);
6151 if (err)
6152 niu_stop_hw(np);
6153 }
6154
6155 spin_unlock_irq(&np->lock);
6156
6157 if (err) {
6158 niu_disable_napi(np);
6159 goto out_free_irq;
6160 }
6161
6162 netif_tx_start_all_queues(dev);
6163
6164 if (np->link_config.loopback_mode != LOOPBACK_DISABLED)
6165 netif_carrier_on(dev);
6166
6167 add_timer(&np->timer);
6168
6169 return 0;
6170
6171 out_free_irq:
6172 niu_free_irq(np);
6173
6174 out_free_channels:
6175 niu_free_channels(np);
6176
6177 out_err:
6178 return err;
6179 }
6180
6181 static void niu_full_shutdown(struct niu *np, struct net_device *dev)
6182 {
6183 cancel_work_sync(&np->reset_task);
6184
6185 niu_disable_napi(np);
6186 netif_tx_stop_all_queues(dev);
6187
6188 del_timer_sync(&np->timer);
6189
6190 spin_lock_irq(&np->lock);
6191
6192 niu_stop_hw(np);
6193
6194 spin_unlock_irq(&np->lock);
6195 }
6196
6197 static int niu_close(struct net_device *dev)
6198 {
6199 struct niu *np = netdev_priv(dev);
6200
6201 niu_full_shutdown(np, dev);
6202
6203 niu_free_irq(np);
6204
6205 niu_free_channels(np);
6206
6207 niu_handle_led(np, 0);
6208
6209 return 0;
6210 }
6211
6212 static void niu_sync_xmac_stats(struct niu *np)
6213 {
6214 struct niu_xmac_stats *mp = &np->mac_stats.xmac;
6215
6216 mp->tx_frames += nr64_mac(TXMAC_FRM_CNT);
6217 mp->tx_bytes += nr64_mac(TXMAC_BYTE_CNT);
6218
6219 mp->rx_link_faults += nr64_mac(LINK_FAULT_CNT);
6220 mp->rx_align_errors += nr64_mac(RXMAC_ALIGN_ERR_CNT);
6221 mp->rx_frags += nr64_mac(RXMAC_FRAG_CNT);
6222 mp->rx_mcasts += nr64_mac(RXMAC_MC_FRM_CNT);
6223 mp->rx_bcasts += nr64_mac(RXMAC_BC_FRM_CNT);
6224 mp->rx_hist_cnt1 += nr64_mac(RXMAC_HIST_CNT1);
6225 mp->rx_hist_cnt2 += nr64_mac(RXMAC_HIST_CNT2);
6226 mp->rx_hist_cnt3 += nr64_mac(RXMAC_HIST_CNT3);
6227 mp->rx_hist_cnt4 += nr64_mac(RXMAC_HIST_CNT4);
6228 mp->rx_hist_cnt5 += nr64_mac(RXMAC_HIST_CNT5);
6229 mp->rx_hist_cnt6 += nr64_mac(RXMAC_HIST_CNT6);
6230 mp->rx_hist_cnt7 += nr64_mac(RXMAC_HIST_CNT7);
6231 mp->rx_octets += nr64_mac(RXMAC_BT_CNT);
6232 mp->rx_code_violations += nr64_mac(RXMAC_CD_VIO_CNT);
6233 mp->rx_len_errors += nr64_mac(RXMAC_MPSZER_CNT);
6234 mp->rx_crc_errors += nr64_mac(RXMAC_CRC_ER_CNT);
6235 }
6236
6237 static void niu_sync_bmac_stats(struct niu *np)
6238 {
6239 struct niu_bmac_stats *mp = &np->mac_stats.bmac;
6240
6241 mp->tx_bytes += nr64_mac(BTXMAC_BYTE_CNT);
6242 mp->tx_frames += nr64_mac(BTXMAC_FRM_CNT);
6243
6244 mp->rx_frames += nr64_mac(BRXMAC_FRAME_CNT);
6245 mp->rx_align_errors += nr64_mac(BRXMAC_ALIGN_ERR_CNT);
6246 mp->rx_crc_errors += nr64_mac(BRXMAC_ALIGN_ERR_CNT);
6247 mp->rx_len_errors += nr64_mac(BRXMAC_CODE_VIOL_ERR_CNT);
6248 }
6249
6250 static void niu_sync_mac_stats(struct niu *np)
6251 {
6252 if (np->flags & NIU_FLAGS_XMAC)
6253 niu_sync_xmac_stats(np);
6254 else
6255 niu_sync_bmac_stats(np);
6256 }
6257
6258 static void niu_get_rx_stats(struct niu *np)
6259 {
6260 unsigned long pkts, dropped, errors, bytes;
6261 struct rx_ring_info *rx_rings;
6262 int i;
6263
6264 pkts = dropped = errors = bytes = 0;
6265
6266 rx_rings = ACCESS_ONCE(np->rx_rings);
6267 if (!rx_rings)
6268 goto no_rings;
6269
6270 for (i = 0; i < np->num_rx_rings; i++) {
6271 struct rx_ring_info *rp = &rx_rings[i];
6272
6273 niu_sync_rx_discard_stats(np, rp, 0);
6274
6275 pkts += rp->rx_packets;
6276 bytes += rp->rx_bytes;
6277 dropped += rp->rx_dropped;
6278 errors += rp->rx_errors;
6279 }
6280
6281 no_rings:
6282 np->dev->stats.rx_packets = pkts;
6283 np->dev->stats.rx_bytes = bytes;
6284 np->dev->stats.rx_dropped = dropped;
6285 np->dev->stats.rx_errors = errors;
6286 }
6287
6288 static void niu_get_tx_stats(struct niu *np)
6289 {
6290 unsigned long pkts, errors, bytes;
6291 struct tx_ring_info *tx_rings;
6292 int i;
6293
6294 pkts = errors = bytes = 0;
6295
6296 tx_rings = ACCESS_ONCE(np->tx_rings);
6297 if (!tx_rings)
6298 goto no_rings;
6299
6300 for (i = 0; i < np->num_tx_rings; i++) {
6301 struct tx_ring_info *rp = &tx_rings[i];
6302
6303 pkts += rp->tx_packets;
6304 bytes += rp->tx_bytes;
6305 errors += rp->tx_errors;
6306 }
6307
6308 no_rings:
6309 np->dev->stats.tx_packets = pkts;
6310 np->dev->stats.tx_bytes = bytes;
6311 np->dev->stats.tx_errors = errors;
6312 }
6313
6314 static struct net_device_stats *niu_get_stats(struct net_device *dev)
6315 {
6316 struct niu *np = netdev_priv(dev);
6317
6318 if (netif_running(dev)) {
6319 niu_get_rx_stats(np);
6320 niu_get_tx_stats(np);
6321 }
6322 return &dev->stats;
6323 }
6324
6325 static void niu_load_hash_xmac(struct niu *np, u16 *hash)
6326 {
6327 int i;
6328
6329 for (i = 0; i < 16; i++)
6330 nw64_mac(XMAC_HASH_TBL(i), hash[i]);
6331 }
6332
6333 static void niu_load_hash_bmac(struct niu *np, u16 *hash)
6334 {
6335 int i;
6336
6337 for (i = 0; i < 16; i++)
6338 nw64_mac(BMAC_HASH_TBL(i), hash[i]);
6339 }
6340
6341 static void niu_load_hash(struct niu *np, u16 *hash)
6342 {
6343 if (np->flags & NIU_FLAGS_XMAC)
6344 niu_load_hash_xmac(np, hash);
6345 else
6346 niu_load_hash_bmac(np, hash);
6347 }
6348
6349 static void niu_set_rx_mode(struct net_device *dev)
6350 {
6351 struct niu *np = netdev_priv(dev);
6352 int i, alt_cnt, err;
6353 struct netdev_hw_addr *ha;
6354 unsigned long flags;
6355 u16 hash[16] = { 0, };
6356
6357 spin_lock_irqsave(&np->lock, flags);
6358 niu_enable_rx_mac(np, 0);
6359
6360 np->flags &= ~(NIU_FLAGS_MCAST | NIU_FLAGS_PROMISC);
6361 if (dev->flags & IFF_PROMISC)
6362 np->flags |= NIU_FLAGS_PROMISC;
6363 if ((dev->flags & IFF_ALLMULTI) || (!netdev_mc_empty(dev)))
6364 np->flags |= NIU_FLAGS_MCAST;
6365
6366 alt_cnt = netdev_uc_count(dev);
6367 if (alt_cnt > niu_num_alt_addr(np)) {
6368 alt_cnt = 0;
6369 np->flags |= NIU_FLAGS_PROMISC;
6370 }
6371
6372 if (alt_cnt) {
6373 int index = 0;
6374
6375 netdev_for_each_uc_addr(ha, dev) {
6376 err = niu_set_alt_mac(np, index, ha->addr);
6377 if (err)
6378 netdev_warn(dev, "Error %d adding alt mac %d\n",
6379 err, index);
6380 err = niu_enable_alt_mac(np, index, 1);
6381 if (err)
6382 netdev_warn(dev, "Error %d enabling alt mac %d\n",
6383 err, index);
6384
6385 index++;
6386 }
6387 } else {
6388 int alt_start;
6389 if (np->flags & NIU_FLAGS_XMAC)
6390 alt_start = 0;
6391 else
6392 alt_start = 1;
6393 for (i = alt_start; i < niu_num_alt_addr(np); i++) {
6394 err = niu_enable_alt_mac(np, i, 0);
6395 if (err)
6396 netdev_warn(dev, "Error %d disabling alt mac %d\n",
6397 err, i);
6398 }
6399 }
6400 if (dev->flags & IFF_ALLMULTI) {
6401 for (i = 0; i < 16; i++)
6402 hash[i] = 0xffff;
6403 } else if (!netdev_mc_empty(dev)) {
6404 netdev_for_each_mc_addr(ha, dev) {
6405 u32 crc = ether_crc_le(ETH_ALEN, ha->addr);
6406
6407 crc >>= 24;
6408 hash[crc >> 4] |= (1 << (15 - (crc & 0xf)));
6409 }
6410 }
6411
6412 if (np->flags & NIU_FLAGS_MCAST)
6413 niu_load_hash(np, hash);
6414
6415 niu_enable_rx_mac(np, 1);
6416 spin_unlock_irqrestore(&np->lock, flags);
6417 }
6418
6419 static int niu_set_mac_addr(struct net_device *dev, void *p)
6420 {
6421 struct niu *np = netdev_priv(dev);
6422 struct sockaddr *addr = p;
6423 unsigned long flags;
6424
6425 if (!is_valid_ether_addr(addr->sa_data))
6426 return -EINVAL;
6427
6428 memcpy(dev->dev_addr, addr->sa_data, ETH_ALEN);
6429
6430 if (!netif_running(dev))
6431 return 0;
6432
6433 spin_lock_irqsave(&np->lock, flags);
6434 niu_enable_rx_mac(np, 0);
6435 niu_set_primary_mac(np, dev->dev_addr);
6436 niu_enable_rx_mac(np, 1);
6437 spin_unlock_irqrestore(&np->lock, flags);
6438
6439 return 0;
6440 }
6441
6442 static int niu_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
6443 {
6444 return -EOPNOTSUPP;
6445 }
6446
6447 static void niu_netif_stop(struct niu *np)
6448 {
6449 np->dev->trans_start = jiffies; /* prevent tx timeout */
6450
6451 niu_disable_napi(np);
6452
6453 netif_tx_disable(np->dev);
6454 }
6455
6456 static void niu_netif_start(struct niu *np)
6457 {
6458 /* NOTE: unconditional netif_wake_queue is only appropriate
6459 * so long as all callers are assured to have free tx slots
6460 * (such as after niu_init_hw).
6461 */
6462 netif_tx_wake_all_queues(np->dev);
6463
6464 niu_enable_napi(np);
6465
6466 niu_enable_interrupts(np, 1);
6467 }
6468
6469 static void niu_reset_buffers(struct niu *np)
6470 {
6471 int i, j, k, err;
6472
6473 if (np->rx_rings) {
6474 for (i = 0; i < np->num_rx_rings; i++) {
6475 struct rx_ring_info *rp = &np->rx_rings[i];
6476
6477 for (j = 0, k = 0; j < MAX_RBR_RING_SIZE; j++) {
6478 struct page *page;
6479
6480 page = rp->rxhash[j];
6481 while (page) {
6482 struct page *next =
6483 (struct page *) page->mapping;
6484 u64 base = page->index;
6485 base = base >> RBR_DESCR_ADDR_SHIFT;
6486 rp->rbr[k++] = cpu_to_le32(base);
6487 page = next;
6488 }
6489 }
6490 for (; k < MAX_RBR_RING_SIZE; k++) {
6491 err = niu_rbr_add_page(np, rp, GFP_ATOMIC, k);
6492 if (unlikely(err))
6493 break;
6494 }
6495
6496 rp->rbr_index = rp->rbr_table_size - 1;
6497 rp->rcr_index = 0;
6498 rp->rbr_pending = 0;
6499 rp->rbr_refill_pending = 0;
6500 }
6501 }
6502 if (np->tx_rings) {
6503 for (i = 0; i < np->num_tx_rings; i++) {
6504 struct tx_ring_info *rp = &np->tx_rings[i];
6505
6506 for (j = 0; j < MAX_TX_RING_SIZE; j++) {
6507 if (rp->tx_buffs[j].skb)
6508 (void) release_tx_packet(np, rp, j);
6509 }
6510
6511 rp->pending = MAX_TX_RING_SIZE;
6512 rp->prod = 0;
6513 rp->cons = 0;
6514 rp->wrap_bit = 0;
6515 }
6516 }
6517 }
6518
6519 static void niu_reset_task(struct work_struct *work)
6520 {
6521 struct niu *np = container_of(work, struct niu, reset_task);
6522 unsigned long flags;
6523 int err;
6524
6525 spin_lock_irqsave(&np->lock, flags);
6526 if (!netif_running(np->dev)) {
6527 spin_unlock_irqrestore(&np->lock, flags);
6528 return;
6529 }
6530
6531 spin_unlock_irqrestore(&np->lock, flags);
6532
6533 del_timer_sync(&np->timer);
6534
6535 niu_netif_stop(np);
6536
6537 spin_lock_irqsave(&np->lock, flags);
6538
6539 niu_stop_hw(np);
6540
6541 spin_unlock_irqrestore(&np->lock, flags);
6542
6543 niu_reset_buffers(np);
6544
6545 spin_lock_irqsave(&np->lock, flags);
6546
6547 err = niu_init_hw(np);
6548 if (!err) {
6549 np->timer.expires = jiffies + HZ;
6550 add_timer(&np->timer);
6551 niu_netif_start(np);
6552 }
6553
6554 spin_unlock_irqrestore(&np->lock, flags);
6555 }
6556
6557 static void niu_tx_timeout(struct net_device *dev)
6558 {
6559 struct niu *np = netdev_priv(dev);
6560
6561 dev_err(np->device, "%s: Transmit timed out, resetting\n",
6562 dev->name);
6563
6564 schedule_work(&np->reset_task);
6565 }
6566
6567 static void niu_set_txd(struct tx_ring_info *rp, int index,
6568 u64 mapping, u64 len, u64 mark,
6569 u64 n_frags)
6570 {
6571 __le64 *desc = &rp->descr[index];
6572
6573 *desc = cpu_to_le64(mark |
6574 (n_frags << TX_DESC_NUM_PTR_SHIFT) |
6575 (len << TX_DESC_TR_LEN_SHIFT) |
6576 (mapping & TX_DESC_SAD));
6577 }
6578
6579 static u64 niu_compute_tx_flags(struct sk_buff *skb, struct ethhdr *ehdr,
6580 u64 pad_bytes, u64 len)
6581 {
6582 u16 eth_proto, eth_proto_inner;
6583 u64 csum_bits, l3off, ihl, ret;
6584 u8 ip_proto;
6585 int ipv6;
6586
6587 eth_proto = be16_to_cpu(ehdr->h_proto);
6588 eth_proto_inner = eth_proto;
6589 if (eth_proto == ETH_P_8021Q) {
6590 struct vlan_ethhdr *vp = (struct vlan_ethhdr *) ehdr;
6591 __be16 val = vp->h_vlan_encapsulated_proto;
6592
6593 eth_proto_inner = be16_to_cpu(val);
6594 }
6595
6596 ipv6 = ihl = 0;
6597 switch (skb->protocol) {
6598 case cpu_to_be16(ETH_P_IP):
6599 ip_proto = ip_hdr(skb)->protocol;
6600 ihl = ip_hdr(skb)->ihl;
6601 break;
6602 case cpu_to_be16(ETH_P_IPV6):
6603 ip_proto = ipv6_hdr(skb)->nexthdr;
6604 ihl = (40 >> 2);
6605 ipv6 = 1;
6606 break;
6607 default:
6608 ip_proto = ihl = 0;
6609 break;
6610 }
6611
6612 csum_bits = TXHDR_CSUM_NONE;
6613 if (skb->ip_summed == CHECKSUM_PARTIAL) {
6614 u64 start, stuff;
6615
6616 csum_bits = (ip_proto == IPPROTO_TCP ?
6617 TXHDR_CSUM_TCP :
6618 (ip_proto == IPPROTO_UDP ?
6619 TXHDR_CSUM_UDP : TXHDR_CSUM_SCTP));
6620
6621 start = skb_checksum_start_offset(skb) -
6622 (pad_bytes + sizeof(struct tx_pkt_hdr));
6623 stuff = start + skb->csum_offset;
6624
6625 csum_bits |= (start / 2) << TXHDR_L4START_SHIFT;
6626 csum_bits |= (stuff / 2) << TXHDR_L4STUFF_SHIFT;
6627 }
6628
6629 l3off = skb_network_offset(skb) -
6630 (pad_bytes + sizeof(struct tx_pkt_hdr));
6631
6632 ret = (((pad_bytes / 2) << TXHDR_PAD_SHIFT) |
6633 (len << TXHDR_LEN_SHIFT) |
6634 ((l3off / 2) << TXHDR_L3START_SHIFT) |
6635 (ihl << TXHDR_IHL_SHIFT) |
6636 ((eth_proto_inner < 1536) ? TXHDR_LLC : 0) |
6637 ((eth_proto == ETH_P_8021Q) ? TXHDR_VLAN : 0) |
6638 (ipv6 ? TXHDR_IP_VER : 0) |
6639 csum_bits);
6640
6641 return ret;
6642 }
6643
6644 static netdev_tx_t niu_start_xmit(struct sk_buff *skb,
6645 struct net_device *dev)
6646 {
6647 struct niu *np = netdev_priv(dev);
6648 unsigned long align, headroom;
6649 struct netdev_queue *txq;
6650 struct tx_ring_info *rp;
6651 struct tx_pkt_hdr *tp;
6652 unsigned int len, nfg;
6653 struct ethhdr *ehdr;
6654 int prod, i, tlen;
6655 u64 mapping, mrk;
6656
6657 i = skb_get_queue_mapping(skb);
6658 rp = &np->tx_rings[i];
6659 txq = netdev_get_tx_queue(dev, i);
6660
6661 if (niu_tx_avail(rp) <= (skb_shinfo(skb)->nr_frags + 1)) {
6662 netif_tx_stop_queue(txq);
6663 dev_err(np->device, "%s: BUG! Tx ring full when queue awake!\n", dev->name);
6664 rp->tx_errors++;
6665 return NETDEV_TX_BUSY;
6666 }
6667
6668 if (skb->len < ETH_ZLEN) {
6669 unsigned int pad_bytes = ETH_ZLEN - skb->len;
6670
6671 if (skb_pad(skb, pad_bytes))
6672 goto out;
6673 skb_put(skb, pad_bytes);
6674 }
6675
6676 len = sizeof(struct tx_pkt_hdr) + 15;
6677 if (skb_headroom(skb) < len) {
6678 struct sk_buff *skb_new;
6679
6680 skb_new = skb_realloc_headroom(skb, len);
6681 if (!skb_new) {
6682 rp->tx_errors++;
6683 goto out_drop;
6684 }
6685 kfree_skb(skb);
6686 skb = skb_new;
6687 } else
6688 skb_orphan(skb);
6689
6690 align = ((unsigned long) skb->data & (16 - 1));
6691 headroom = align + sizeof(struct tx_pkt_hdr);
6692
6693 ehdr = (struct ethhdr *) skb->data;
6694 tp = (struct tx_pkt_hdr *) skb_push(skb, headroom);
6695
6696 len = skb->len - sizeof(struct tx_pkt_hdr);
6697 tp->flags = cpu_to_le64(niu_compute_tx_flags(skb, ehdr, align, len));
6698 tp->resv = 0;
6699
6700 len = skb_headlen(skb);
6701 mapping = np->ops->map_single(np->device, skb->data,
6702 len, DMA_TO_DEVICE);
6703
6704 prod = rp->prod;
6705
6706 rp->tx_buffs[prod].skb = skb;
6707 rp->tx_buffs[prod].mapping = mapping;
6708
6709 mrk = TX_DESC_SOP;
6710 if (++rp->mark_counter == rp->mark_freq) {
6711 rp->mark_counter = 0;
6712 mrk |= TX_DESC_MARK;
6713 rp->mark_pending++;
6714 }
6715
6716 tlen = len;
6717 nfg = skb_shinfo(skb)->nr_frags;
6718 while (tlen > 0) {
6719 tlen -= MAX_TX_DESC_LEN;
6720 nfg++;
6721 }
6722
6723 while (len > 0) {
6724 unsigned int this_len = len;
6725
6726 if (this_len > MAX_TX_DESC_LEN)
6727 this_len = MAX_TX_DESC_LEN;
6728
6729 niu_set_txd(rp, prod, mapping, this_len, mrk, nfg);
6730 mrk = nfg = 0;
6731
6732 prod = NEXT_TX(rp, prod);
6733 mapping += this_len;
6734 len -= this_len;
6735 }
6736
6737 for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
6738 skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
6739
6740 len = frag->size;
6741 mapping = np->ops->map_page(np->device, frag->page,
6742 frag->page_offset, len,
6743 DMA_TO_DEVICE);
6744
6745 rp->tx_buffs[prod].skb = NULL;
6746 rp->tx_buffs[prod].mapping = mapping;
6747
6748 niu_set_txd(rp, prod, mapping, len, 0, 0);
6749
6750 prod = NEXT_TX(rp, prod);
6751 }
6752
6753 if (prod < rp->prod)
6754 rp->wrap_bit ^= TX_RING_KICK_WRAP;
6755 rp->prod = prod;
6756
6757 nw64(TX_RING_KICK(rp->tx_channel), rp->wrap_bit | (prod << 3));
6758
6759 if (unlikely(niu_tx_avail(rp) <= (MAX_SKB_FRAGS + 1))) {
6760 netif_tx_stop_queue(txq);
6761 if (niu_tx_avail(rp) > NIU_TX_WAKEUP_THRESH(rp))
6762 netif_tx_wake_queue(txq);
6763 }
6764
6765 out:
6766 return NETDEV_TX_OK;
6767
6768 out_drop:
6769 rp->tx_errors++;
6770 kfree_skb(skb);
6771 goto out;
6772 }
6773
6774 static int niu_change_mtu(struct net_device *dev, int new_mtu)
6775 {
6776 struct niu *np = netdev_priv(dev);
6777 int err, orig_jumbo, new_jumbo;
6778
6779 if (new_mtu < 68 || new_mtu > NIU_MAX_MTU)
6780 return -EINVAL;
6781
6782 orig_jumbo = (dev->mtu > ETH_DATA_LEN);
6783 new_jumbo = (new_mtu > ETH_DATA_LEN);
6784
6785 dev->mtu = new_mtu;
6786
6787 if (!netif_running(dev) ||
6788 (orig_jumbo == new_jumbo))
6789 return 0;
6790
6791 niu_full_shutdown(np, dev);
6792
6793 niu_free_channels(np);
6794
6795 niu_enable_napi(np);
6796
6797 err = niu_alloc_channels(np);
6798 if (err)
6799 return err;
6800
6801 spin_lock_irq(&np->lock);
6802
6803 err = niu_init_hw(np);
6804 if (!err) {
6805 init_timer(&np->timer);
6806 np->timer.expires = jiffies + HZ;
6807 np->timer.data = (unsigned long) np;
6808 np->timer.function = niu_timer;
6809
6810 err = niu_enable_interrupts(np, 1);
6811 if (err)
6812 niu_stop_hw(np);
6813 }
6814
6815 spin_unlock_irq(&np->lock);
6816
6817 if (!err) {
6818 netif_tx_start_all_queues(dev);
6819 if (np->link_config.loopback_mode != LOOPBACK_DISABLED)
6820 netif_carrier_on(dev);
6821
6822 add_timer(&np->timer);
6823 }
6824
6825 return err;
6826 }
6827
6828 static void niu_get_drvinfo(struct net_device *dev,
6829 struct ethtool_drvinfo *info)
6830 {
6831 struct niu *np = netdev_priv(dev);
6832 struct niu_vpd *vpd = &np->vpd;
6833
6834 strcpy(info->driver, DRV_MODULE_NAME);
6835 strcpy(info->version, DRV_MODULE_VERSION);
6836 sprintf(info->fw_version, "%d.%d",
6837 vpd->fcode_major, vpd->fcode_minor);
6838 if (np->parent->plat_type != PLAT_TYPE_NIU)
6839 strcpy(info->bus_info, pci_name(np->pdev));
6840 }
6841
6842 static int niu_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
6843 {
6844 struct niu *np = netdev_priv(dev);
6845 struct niu_link_config *lp;
6846
6847 lp = &np->link_config;
6848
6849 memset(cmd, 0, sizeof(*cmd));
6850 cmd->phy_address = np->phy_addr;
6851 cmd->supported = lp->supported;
6852 cmd->advertising = lp->active_advertising;
6853 cmd->autoneg = lp->active_autoneg;
6854 cmd->speed = lp->active_speed;
6855 cmd->duplex = lp->active_duplex;
6856 cmd->port = (np->flags & NIU_FLAGS_FIBER) ? PORT_FIBRE : PORT_TP;
6857 cmd->transceiver = (np->flags & NIU_FLAGS_XCVR_SERDES) ?
6858 XCVR_EXTERNAL : XCVR_INTERNAL;
6859
6860 return 0;
6861 }
6862
6863 static int niu_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
6864 {
6865 struct niu *np = netdev_priv(dev);
6866 struct niu_link_config *lp = &np->link_config;
6867
6868 lp->advertising = cmd->advertising;
6869 lp->speed = cmd->speed;
6870 lp->duplex = cmd->duplex;
6871 lp->autoneg = cmd->autoneg;
6872 return niu_init_link(np);
6873 }
6874
6875 static u32 niu_get_msglevel(struct net_device *dev)
6876 {
6877 struct niu *np = netdev_priv(dev);
6878 return np->msg_enable;
6879 }
6880
6881 static void niu_set_msglevel(struct net_device *dev, u32 value)
6882 {
6883 struct niu *np = netdev_priv(dev);
6884 np->msg_enable = value;
6885 }
6886
6887 static int niu_nway_reset(struct net_device *dev)
6888 {
6889 struct niu *np = netdev_priv(dev);
6890
6891 if (np->link_config.autoneg)
6892 return niu_init_link(np);
6893
6894 return 0;
6895 }
6896
6897 static int niu_get_eeprom_len(struct net_device *dev)
6898 {
6899 struct niu *np = netdev_priv(dev);
6900
6901 return np->eeprom_len;
6902 }
6903
6904 static int niu_get_eeprom(struct net_device *dev,
6905 struct ethtool_eeprom *eeprom, u8 *data)
6906 {
6907 struct niu *np = netdev_priv(dev);
6908 u32 offset, len, val;
6909
6910 offset = eeprom->offset;
6911 len = eeprom->len;
6912
6913 if (offset + len < offset)
6914 return -EINVAL;
6915 if (offset >= np->eeprom_len)
6916 return -EINVAL;
6917 if (offset + len > np->eeprom_len)
6918 len = eeprom->len = np->eeprom_len - offset;
6919
6920 if (offset & 3) {
6921 u32 b_offset, b_count;
6922
6923 b_offset = offset & 3;
6924 b_count = 4 - b_offset;
6925 if (b_count > len)
6926 b_count = len;
6927
6928 val = nr64(ESPC_NCR((offset - b_offset) / 4));
6929 memcpy(data, ((char *)&val) + b_offset, b_count);
6930 data += b_count;
6931 len -= b_count;
6932 offset += b_count;
6933 }
6934 while (len >= 4) {
6935 val = nr64(ESPC_NCR(offset / 4));
6936 memcpy(data, &val, 4);
6937 data += 4;
6938 len -= 4;
6939 offset += 4;
6940 }
6941 if (len) {
6942 val = nr64(ESPC_NCR(offset / 4));
6943 memcpy(data, &val, len);
6944 }
6945 return 0;
6946 }
6947
6948 static void niu_ethflow_to_l3proto(int flow_type, u8 *pid)
6949 {
6950 switch (flow_type) {
6951 case TCP_V4_FLOW:
6952 case TCP_V6_FLOW:
6953 *pid = IPPROTO_TCP;
6954 break;
6955 case UDP_V4_FLOW:
6956 case UDP_V6_FLOW:
6957 *pid = IPPROTO_UDP;
6958 break;
6959 case SCTP_V4_FLOW:
6960 case SCTP_V6_FLOW:
6961 *pid = IPPROTO_SCTP;
6962 break;
6963 case AH_V4_FLOW:
6964 case AH_V6_FLOW:
6965 *pid = IPPROTO_AH;
6966 break;
6967 case ESP_V4_FLOW:
6968 case ESP_V6_FLOW:
6969 *pid = IPPROTO_ESP;
6970 break;
6971 default:
6972 *pid = 0;
6973 break;
6974 }
6975 }
6976
6977 static int niu_class_to_ethflow(u64 class, int *flow_type)
6978 {
6979 switch (class) {
6980 case CLASS_CODE_TCP_IPV4:
6981 *flow_type = TCP_V4_FLOW;
6982 break;
6983 case CLASS_CODE_UDP_IPV4:
6984 *flow_type = UDP_V4_FLOW;
6985 break;
6986 case CLASS_CODE_AH_ESP_IPV4:
6987 *flow_type = AH_V4_FLOW;
6988 break;
6989 case CLASS_CODE_SCTP_IPV4:
6990 *flow_type = SCTP_V4_FLOW;
6991 break;
6992 case CLASS_CODE_TCP_IPV6:
6993 *flow_type = TCP_V6_FLOW;
6994 break;
6995 case CLASS_CODE_UDP_IPV6:
6996 *flow_type = UDP_V6_FLOW;
6997 break;
6998 case CLASS_CODE_AH_ESP_IPV6:
6999 *flow_type = AH_V6_FLOW;
7000 break;
7001 case CLASS_CODE_SCTP_IPV6:
7002 *flow_type = SCTP_V6_FLOW;
7003 break;
7004 case CLASS_CODE_USER_PROG1:
7005 case CLASS_CODE_USER_PROG2:
7006 case CLASS_CODE_USER_PROG3:
7007 case CLASS_CODE_USER_PROG4:
7008 *flow_type = IP_USER_FLOW;
7009 break;
7010 default:
7011 return 0;
7012 }
7013
7014 return 1;
7015 }
7016
7017 static int niu_ethflow_to_class(int flow_type, u64 *class)
7018 {
7019 switch (flow_type) {
7020 case TCP_V4_FLOW:
7021 *class = CLASS_CODE_TCP_IPV4;
7022 break;
7023 case UDP_V4_FLOW:
7024 *class = CLASS_CODE_UDP_IPV4;
7025 break;
7026 case AH_V4_FLOW:
7027 case ESP_V4_FLOW:
7028 *class = CLASS_CODE_AH_ESP_IPV4;
7029 break;
7030 case SCTP_V4_FLOW:
7031 *class = CLASS_CODE_SCTP_IPV4;
7032 break;
7033 case TCP_V6_FLOW:
7034 *class = CLASS_CODE_TCP_IPV6;
7035 break;
7036 case UDP_V6_FLOW:
7037 *class = CLASS_CODE_UDP_IPV6;
7038 break;
7039 case AH_V6_FLOW:
7040 case ESP_V6_FLOW:
7041 *class = CLASS_CODE_AH_ESP_IPV6;
7042 break;
7043 case SCTP_V6_FLOW:
7044 *class = CLASS_CODE_SCTP_IPV6;
7045 break;
7046 default:
7047 return 0;
7048 }
7049
7050 return 1;
7051 }
7052
7053 static u64 niu_flowkey_to_ethflow(u64 flow_key)
7054 {
7055 u64 ethflow = 0;
7056
7057 if (flow_key & FLOW_KEY_L2DA)
7058 ethflow |= RXH_L2DA;
7059 if (flow_key & FLOW_KEY_VLAN)
7060 ethflow |= RXH_VLAN;
7061 if (flow_key & FLOW_KEY_IPSA)
7062 ethflow |= RXH_IP_SRC;
7063 if (flow_key & FLOW_KEY_IPDA)
7064 ethflow |= RXH_IP_DST;
7065 if (flow_key & FLOW_KEY_PROTO)
7066 ethflow |= RXH_L3_PROTO;
7067 if (flow_key & (FLOW_KEY_L4_BYTE12 << FLOW_KEY_L4_0_SHIFT))
7068 ethflow |= RXH_L4_B_0_1;
7069 if (flow_key & (FLOW_KEY_L4_BYTE12 << FLOW_KEY_L4_1_SHIFT))
7070 ethflow |= RXH_L4_B_2_3;
7071
7072 return ethflow;
7073
7074 }
7075
7076 static int niu_ethflow_to_flowkey(u64 ethflow, u64 *flow_key)
7077 {
7078 u64 key = 0;
7079
7080 if (ethflow & RXH_L2DA)
7081 key |= FLOW_KEY_L2DA;
7082 if (ethflow & RXH_VLAN)
7083 key |= FLOW_KEY_VLAN;
7084 if (ethflow & RXH_IP_SRC)
7085 key |= FLOW_KEY_IPSA;
7086 if (ethflow & RXH_IP_DST)
7087 key |= FLOW_KEY_IPDA;
7088 if (ethflow & RXH_L3_PROTO)
7089 key |= FLOW_KEY_PROTO;
7090 if (ethflow & RXH_L4_B_0_1)
7091 key |= (FLOW_KEY_L4_BYTE12 << FLOW_KEY_L4_0_SHIFT);
7092 if (ethflow & RXH_L4_B_2_3)
7093 key |= (FLOW_KEY_L4_BYTE12 << FLOW_KEY_L4_1_SHIFT);
7094
7095 *flow_key = key;
7096
7097 return 1;
7098
7099 }
7100
7101 static int niu_get_hash_opts(struct niu *np, struct ethtool_rxnfc *nfc)
7102 {
7103 u64 class;
7104
7105 nfc->data = 0;
7106
7107 if (!niu_ethflow_to_class(nfc->flow_type, &class))
7108 return -EINVAL;
7109
7110 if (np->parent->tcam_key[class - CLASS_CODE_USER_PROG1] &
7111 TCAM_KEY_DISC)
7112 nfc->data = RXH_DISCARD;
7113 else
7114 nfc->data = niu_flowkey_to_ethflow(np->parent->flow_key[class -
7115 CLASS_CODE_USER_PROG1]);
7116 return 0;
7117 }
7118
7119 static void niu_get_ip4fs_from_tcam_key(struct niu_tcam_entry *tp,
7120 struct ethtool_rx_flow_spec *fsp)
7121 {
7122 u32 tmp;
7123 u16 prt;
7124
7125 tmp = (tp->key[3] & TCAM_V4KEY3_SADDR) >> TCAM_V4KEY3_SADDR_SHIFT;
7126 fsp->h_u.tcp_ip4_spec.ip4src = cpu_to_be32(tmp);
7127
7128 tmp = (tp->key[3] & TCAM_V4KEY3_DADDR) >> TCAM_V4KEY3_DADDR_SHIFT;
7129 fsp->h_u.tcp_ip4_spec.ip4dst = cpu_to_be32(tmp);
7130
7131 tmp = (tp->key_mask[3] & TCAM_V4KEY3_SADDR) >> TCAM_V4KEY3_SADDR_SHIFT;
7132 fsp->m_u.tcp_ip4_spec.ip4src = cpu_to_be32(tmp);
7133
7134 tmp = (tp->key_mask[3] & TCAM_V4KEY3_DADDR) >> TCAM_V4KEY3_DADDR_SHIFT;
7135 fsp->m_u.tcp_ip4_spec.ip4dst = cpu_to_be32(tmp);
7136
7137 fsp->h_u.tcp_ip4_spec.tos = (tp->key[2] & TCAM_V4KEY2_TOS) >>
7138 TCAM_V4KEY2_TOS_SHIFT;
7139 fsp->m_u.tcp_ip4_spec.tos = (tp->key_mask[2] & TCAM_V4KEY2_TOS) >>
7140 TCAM_V4KEY2_TOS_SHIFT;
7141
7142 switch (fsp->flow_type) {
7143 case TCP_V4_FLOW:
7144 case UDP_V4_FLOW:
7145 case SCTP_V4_FLOW:
7146 prt = ((tp->key[2] & TCAM_V4KEY2_PORT_SPI) >>
7147 TCAM_V4KEY2_PORT_SPI_SHIFT) >> 16;
7148 fsp->h_u.tcp_ip4_spec.psrc = cpu_to_be16(prt);
7149
7150 prt = ((tp->key[2] & TCAM_V4KEY2_PORT_SPI) >>
7151 TCAM_V4KEY2_PORT_SPI_SHIFT) & 0xffff;
7152 fsp->h_u.tcp_ip4_spec.pdst = cpu_to_be16(prt);
7153
7154 prt = ((tp->key_mask[2] & TCAM_V4KEY2_PORT_SPI) >>
7155 TCAM_V4KEY2_PORT_SPI_SHIFT) >> 16;
7156 fsp->m_u.tcp_ip4_spec.psrc = cpu_to_be16(prt);
7157
7158 prt = ((tp->key_mask[2] & TCAM_V4KEY2_PORT_SPI) >>
7159 TCAM_V4KEY2_PORT_SPI_SHIFT) & 0xffff;
7160 fsp->m_u.tcp_ip4_spec.pdst = cpu_to_be16(prt);
7161 break;
7162 case AH_V4_FLOW:
7163 case ESP_V4_FLOW:
7164 tmp = (tp->key[2] & TCAM_V4KEY2_PORT_SPI) >>
7165 TCAM_V4KEY2_PORT_SPI_SHIFT;
7166 fsp->h_u.ah_ip4_spec.spi = cpu_to_be32(tmp);
7167
7168 tmp = (tp->key_mask[2] & TCAM_V4KEY2_PORT_SPI) >>
7169 TCAM_V4KEY2_PORT_SPI_SHIFT;
7170 fsp->m_u.ah_ip4_spec.spi = cpu_to_be32(tmp);
7171 break;
7172 case IP_USER_FLOW:
7173 tmp = (tp->key[2] & TCAM_V4KEY2_PORT_SPI) >>
7174 TCAM_V4KEY2_PORT_SPI_SHIFT;
7175 fsp->h_u.usr_ip4_spec.l4_4_bytes = cpu_to_be32(tmp);
7176
7177 tmp = (tp->key_mask[2] & TCAM_V4KEY2_PORT_SPI) >>
7178 TCAM_V4KEY2_PORT_SPI_SHIFT;
7179 fsp->m_u.usr_ip4_spec.l4_4_bytes = cpu_to_be32(tmp);
7180
7181 fsp->h_u.usr_ip4_spec.proto =
7182 (tp->key[2] & TCAM_V4KEY2_PROTO) >>
7183 TCAM_V4KEY2_PROTO_SHIFT;
7184 fsp->m_u.usr_ip4_spec.proto =
7185 (tp->key_mask[2] & TCAM_V4KEY2_PROTO) >>
7186 TCAM_V4KEY2_PROTO_SHIFT;
7187
7188 fsp->h_u.usr_ip4_spec.ip_ver = ETH_RX_NFC_IP4;
7189 break;
7190 default:
7191 break;
7192 }
7193 }
7194
7195 static int niu_get_ethtool_tcam_entry(struct niu *np,
7196 struct ethtool_rxnfc *nfc)
7197 {
7198 struct niu_parent *parent = np->parent;
7199 struct niu_tcam_entry *tp;
7200 struct ethtool_rx_flow_spec *fsp = &nfc->fs;
7201 u16 idx;
7202 u64 class;
7203 int ret = 0;
7204
7205 idx = tcam_get_index(np, (u16)nfc->fs.location);
7206
7207 tp = &parent->tcam[idx];
7208 if (!tp->valid) {
7209 netdev_info(np->dev, "niu%d: entry [%d] invalid for idx[%d]\n",
7210 parent->index, (u16)nfc->fs.location, idx);
7211 return -EINVAL;
7212 }
7213
7214 /* fill the flow spec entry */
7215 class = (tp->key[0] & TCAM_V4KEY0_CLASS_CODE) >>
7216 TCAM_V4KEY0_CLASS_CODE_SHIFT;
7217 ret = niu_class_to_ethflow(class, &fsp->flow_type);
7218
7219 if (ret < 0) {
7220 netdev_info(np->dev, "niu%d: niu_class_to_ethflow failed\n",
7221 parent->index);
7222 ret = -EINVAL;
7223 goto out;
7224 }
7225
7226 if (fsp->flow_type == AH_V4_FLOW || fsp->flow_type == AH_V6_FLOW) {
7227 u32 proto = (tp->key[2] & TCAM_V4KEY2_PROTO) >>
7228 TCAM_V4KEY2_PROTO_SHIFT;
7229 if (proto == IPPROTO_ESP) {
7230 if (fsp->flow_type == AH_V4_FLOW)
7231 fsp->flow_type = ESP_V4_FLOW;
7232 else
7233 fsp->flow_type = ESP_V6_FLOW;
7234 }
7235 }
7236
7237 switch (fsp->flow_type) {
7238 case TCP_V4_FLOW:
7239 case UDP_V4_FLOW:
7240 case SCTP_V4_FLOW:
7241 case AH_V4_FLOW:
7242 case ESP_V4_FLOW:
7243 niu_get_ip4fs_from_tcam_key(tp, fsp);
7244 break;
7245 case TCP_V6_FLOW:
7246 case UDP_V6_FLOW:
7247 case SCTP_V6_FLOW:
7248 case AH_V6_FLOW:
7249 case ESP_V6_FLOW:
7250 /* Not yet implemented */
7251 ret = -EINVAL;
7252 break;
7253 case IP_USER_FLOW:
7254 niu_get_ip4fs_from_tcam_key(tp, fsp);
7255 break;
7256 default:
7257 ret = -EINVAL;
7258 break;
7259 }
7260
7261 if (ret < 0)
7262 goto out;
7263
7264 if (tp->assoc_data & TCAM_ASSOCDATA_DISC)
7265 fsp->ring_cookie = RX_CLS_FLOW_DISC;
7266 else
7267 fsp->ring_cookie = (tp->assoc_data & TCAM_ASSOCDATA_OFFSET) >>
7268 TCAM_ASSOCDATA_OFFSET_SHIFT;
7269
7270 /* put the tcam size here */
7271 nfc->data = tcam_get_size(np);
7272 out:
7273 return ret;
7274 }
7275
7276 static int niu_get_ethtool_tcam_all(struct niu *np,
7277 struct ethtool_rxnfc *nfc,
7278 u32 *rule_locs)
7279 {
7280 struct niu_parent *parent = np->parent;
7281 struct niu_tcam_entry *tp;
7282 int i, idx, cnt;
7283 unsigned long flags;
7284 int ret = 0;
7285
7286 /* put the tcam size here */
7287 nfc->data = tcam_get_size(np);
7288
7289 niu_lock_parent(np, flags);
7290 for (cnt = 0, i = 0; i < nfc->data; i++) {
7291 idx = tcam_get_index(np, i);
7292 tp = &parent->tcam[idx];
7293 if (!tp->valid)
7294 continue;
7295 if (cnt == nfc->rule_cnt) {
7296 ret = -EMSGSIZE;
7297 break;
7298 }
7299 rule_locs[cnt] = i;
7300 cnt++;
7301 }
7302 niu_unlock_parent(np, flags);
7303
7304 return ret;
7305 }
7306
7307 static int niu_get_nfc(struct net_device *dev, struct ethtool_rxnfc *cmd,
7308 void *rule_locs)
7309 {
7310 struct niu *np = netdev_priv(dev);
7311 int ret = 0;
7312
7313 switch (cmd->cmd) {
7314 case ETHTOOL_GRXFH:
7315 ret = niu_get_hash_opts(np, cmd);
7316 break;
7317 case ETHTOOL_GRXRINGS:
7318 cmd->data = np->num_rx_rings;
7319 break;
7320 case ETHTOOL_GRXCLSRLCNT:
7321 cmd->rule_cnt = tcam_get_valid_entry_cnt(np);
7322 break;
7323 case ETHTOOL_GRXCLSRULE:
7324 ret = niu_get_ethtool_tcam_entry(np, cmd);
7325 break;
7326 case ETHTOOL_GRXCLSRLALL:
7327 ret = niu_get_ethtool_tcam_all(np, cmd, (u32 *)rule_locs);
7328 break;
7329 default:
7330 ret = -EINVAL;
7331 break;
7332 }
7333
7334 return ret;
7335 }
7336
7337 static int niu_set_hash_opts(struct niu *np, struct ethtool_rxnfc *nfc)
7338 {
7339 u64 class;
7340 u64 flow_key = 0;
7341 unsigned long flags;
7342
7343 if (!niu_ethflow_to_class(nfc->flow_type, &class))
7344 return -EINVAL;
7345
7346 if (class < CLASS_CODE_USER_PROG1 ||
7347 class > CLASS_CODE_SCTP_IPV6)
7348 return -EINVAL;
7349
7350 if (nfc->data & RXH_DISCARD) {
7351 niu_lock_parent(np, flags);
7352 flow_key = np->parent->tcam_key[class -
7353 CLASS_CODE_USER_PROG1];
7354 flow_key |= TCAM_KEY_DISC;
7355 nw64(TCAM_KEY(class - CLASS_CODE_USER_PROG1), flow_key);
7356 np->parent->tcam_key[class - CLASS_CODE_USER_PROG1] = flow_key;
7357 niu_unlock_parent(np, flags);
7358 return 0;
7359 } else {
7360 /* Discard was set before, but is not set now */
7361 if (np->parent->tcam_key[class - CLASS_CODE_USER_PROG1] &
7362 TCAM_KEY_DISC) {
7363 niu_lock_parent(np, flags);
7364 flow_key = np->parent->tcam_key[class -
7365 CLASS_CODE_USER_PROG1];
7366 flow_key &= ~TCAM_KEY_DISC;
7367 nw64(TCAM_KEY(class - CLASS_CODE_USER_PROG1),
7368 flow_key);
7369 np->parent->tcam_key[class - CLASS_CODE_USER_PROG1] =
7370 flow_key;
7371 niu_unlock_parent(np, flags);
7372 }
7373 }
7374
7375 if (!niu_ethflow_to_flowkey(nfc->data, &flow_key))
7376 return -EINVAL;
7377
7378 niu_lock_parent(np, flags);
7379 nw64(FLOW_KEY(class - CLASS_CODE_USER_PROG1), flow_key);
7380 np->parent->flow_key[class - CLASS_CODE_USER_PROG1] = flow_key;
7381 niu_unlock_parent(np, flags);
7382
7383 return 0;
7384 }
7385
7386 static void niu_get_tcamkey_from_ip4fs(struct ethtool_rx_flow_spec *fsp,
7387 struct niu_tcam_entry *tp,
7388 int l2_rdc_tab, u64 class)
7389 {
7390 u8 pid = 0;
7391 u32 sip, dip, sipm, dipm, spi, spim;
7392 u16 sport, dport, spm, dpm;
7393
7394 sip = be32_to_cpu(fsp->h_u.tcp_ip4_spec.ip4src);
7395 sipm = be32_to_cpu(fsp->m_u.tcp_ip4_spec.ip4src);
7396 dip = be32_to_cpu(fsp->h_u.tcp_ip4_spec.ip4dst);
7397 dipm = be32_to_cpu(fsp->m_u.tcp_ip4_spec.ip4dst);
7398
7399 tp->key[0] = class << TCAM_V4KEY0_CLASS_CODE_SHIFT;
7400 tp->key_mask[0] = TCAM_V4KEY0_CLASS_CODE;
7401 tp->key[1] = (u64)l2_rdc_tab << TCAM_V4KEY1_L2RDCNUM_SHIFT;
7402 tp->key_mask[1] = TCAM_V4KEY1_L2RDCNUM;
7403
7404 tp->key[3] = (u64)sip << TCAM_V4KEY3_SADDR_SHIFT;
7405 tp->key[3] |= dip;
7406
7407 tp->key_mask[3] = (u64)sipm << TCAM_V4KEY3_SADDR_SHIFT;
7408 tp->key_mask[3] |= dipm;
7409
7410 tp->key[2] |= ((u64)fsp->h_u.tcp_ip4_spec.tos <<
7411 TCAM_V4KEY2_TOS_SHIFT);
7412 tp->key_mask[2] |= ((u64)fsp->m_u.tcp_ip4_spec.tos <<
7413 TCAM_V4KEY2_TOS_SHIFT);
7414 switch (fsp->flow_type) {
7415 case TCP_V4_FLOW:
7416 case UDP_V4_FLOW:
7417 case SCTP_V4_FLOW:
7418 sport = be16_to_cpu(fsp->h_u.tcp_ip4_spec.psrc);
7419 spm = be16_to_cpu(fsp->m_u.tcp_ip4_spec.psrc);
7420 dport = be16_to_cpu(fsp->h_u.tcp_ip4_spec.pdst);
7421 dpm = be16_to_cpu(fsp->m_u.tcp_ip4_spec.pdst);
7422
7423 tp->key[2] |= (((u64)sport << 16) | dport);
7424 tp->key_mask[2] |= (((u64)spm << 16) | dpm);
7425 niu_ethflow_to_l3proto(fsp->flow_type, &pid);
7426 break;
7427 case AH_V4_FLOW:
7428 case ESP_V4_FLOW:
7429 spi = be32_to_cpu(fsp->h_u.ah_ip4_spec.spi);
7430 spim = be32_to_cpu(fsp->m_u.ah_ip4_spec.spi);
7431
7432 tp->key[2] |= spi;
7433 tp->key_mask[2] |= spim;
7434 niu_ethflow_to_l3proto(fsp->flow_type, &pid);
7435 break;
7436 case IP_USER_FLOW:
7437 spi = be32_to_cpu(fsp->h_u.usr_ip4_spec.l4_4_bytes);
7438 spim = be32_to_cpu(fsp->m_u.usr_ip4_spec.l4_4_bytes);
7439
7440 tp->key[2] |= spi;
7441 tp->key_mask[2] |= spim;
7442 pid = fsp->h_u.usr_ip4_spec.proto;
7443 break;
7444 default:
7445 break;
7446 }
7447
7448 tp->key[2] |= ((u64)pid << TCAM_V4KEY2_PROTO_SHIFT);
7449 if (pid) {
7450 tp->key_mask[2] |= TCAM_V4KEY2_PROTO;
7451 }
7452 }
7453
7454 static int niu_add_ethtool_tcam_entry(struct niu *np,
7455 struct ethtool_rxnfc *nfc)
7456 {
7457 struct niu_parent *parent = np->parent;
7458 struct niu_tcam_entry *tp;
7459 struct ethtool_rx_flow_spec *fsp = &nfc->fs;
7460 struct niu_rdc_tables *rdc_table = &parent->rdc_group_cfg[np->port];
7461 int l2_rdc_table = rdc_table->first_table_num;
7462 u16 idx;
7463 u64 class;
7464 unsigned long flags;
7465 int err, ret;
7466
7467 ret = 0;
7468
7469 idx = nfc->fs.location;
7470 if (idx >= tcam_get_size(np))
7471 return -EINVAL;
7472
7473 if (fsp->flow_type == IP_USER_FLOW) {
7474 int i;
7475 int add_usr_cls = 0;
7476 struct ethtool_usrip4_spec *uspec = &fsp->h_u.usr_ip4_spec;
7477 struct ethtool_usrip4_spec *umask = &fsp->m_u.usr_ip4_spec;
7478
7479 if (uspec->ip_ver != ETH_RX_NFC_IP4)
7480 return -EINVAL;
7481
7482 niu_lock_parent(np, flags);
7483
7484 for (i = 0; i < NIU_L3_PROG_CLS; i++) {
7485 if (parent->l3_cls[i]) {
7486 if (uspec->proto == parent->l3_cls_pid[i]) {
7487 class = parent->l3_cls[i];
7488 parent->l3_cls_refcnt[i]++;
7489 add_usr_cls = 1;
7490 break;
7491 }
7492 } else {
7493 /* Program new user IP class */
7494 switch (i) {
7495 case 0:
7496 class = CLASS_CODE_USER_PROG1;
7497 break;
7498 case 1:
7499 class = CLASS_CODE_USER_PROG2;
7500 break;
7501 case 2:
7502 class = CLASS_CODE_USER_PROG3;
7503 break;
7504 case 3:
7505 class = CLASS_CODE_USER_PROG4;
7506 break;
7507 default:
7508 break;
7509 }
7510 ret = tcam_user_ip_class_set(np, class, 0,
7511 uspec->proto,
7512 uspec->tos,
7513 umask->tos);
7514 if (ret)
7515 goto out;
7516
7517 ret = tcam_user_ip_class_enable(np, class, 1);
7518 if (ret)
7519 goto out;
7520 parent->l3_cls[i] = class;
7521 parent->l3_cls_pid[i] = uspec->proto;
7522 parent->l3_cls_refcnt[i]++;
7523 add_usr_cls = 1;
7524 break;
7525 }
7526 }
7527 if (!add_usr_cls) {
7528 netdev_info(np->dev, "niu%d: %s(): Could not find/insert class for pid %d\n",
7529 parent->index, __func__, uspec->proto);
7530 ret = -EINVAL;
7531 goto out;
7532 }
7533 niu_unlock_parent(np, flags);
7534 } else {
7535 if (!niu_ethflow_to_class(fsp->flow_type, &class)) {
7536 return -EINVAL;
7537 }
7538 }
7539
7540 niu_lock_parent(np, flags);
7541
7542 idx = tcam_get_index(np, idx);
7543 tp = &parent->tcam[idx];
7544
7545 memset(tp, 0, sizeof(*tp));
7546
7547 /* fill in the tcam key and mask */
7548 switch (fsp->flow_type) {
7549 case TCP_V4_FLOW:
7550 case UDP_V4_FLOW:
7551 case SCTP_V4_FLOW:
7552 case AH_V4_FLOW:
7553 case ESP_V4_FLOW:
7554 niu_get_tcamkey_from_ip4fs(fsp, tp, l2_rdc_table, class);
7555 break;
7556 case TCP_V6_FLOW:
7557 case UDP_V6_FLOW:
7558 case SCTP_V6_FLOW:
7559 case AH_V6_FLOW:
7560 case ESP_V6_FLOW:
7561 /* Not yet implemented */
7562 netdev_info(np->dev, "niu%d: In %s(): flow %d for IPv6 not implemented\n",
7563 parent->index, __func__, fsp->flow_type);
7564 ret = -EINVAL;
7565 goto out;
7566 case IP_USER_FLOW:
7567 niu_get_tcamkey_from_ip4fs(fsp, tp, l2_rdc_table, class);
7568 break;
7569 default:
7570 netdev_info(np->dev, "niu%d: In %s(): Unknown flow type %d\n",
7571 parent->index, __func__, fsp->flow_type);
7572 ret = -EINVAL;
7573 goto out;
7574 }
7575
7576 /* fill in the assoc data */
7577 if (fsp->ring_cookie == RX_CLS_FLOW_DISC) {
7578 tp->assoc_data = TCAM_ASSOCDATA_DISC;
7579 } else {
7580 if (fsp->ring_cookie >= np->num_rx_rings) {
7581 netdev_info(np->dev, "niu%d: In %s(): Invalid RX ring %lld\n",
7582 parent->index, __func__,
7583 (long long)fsp->ring_cookie);
7584 ret = -EINVAL;
7585 goto out;
7586 }
7587 tp->assoc_data = (TCAM_ASSOCDATA_TRES_USE_OFFSET |
7588 (fsp->ring_cookie <<
7589 TCAM_ASSOCDATA_OFFSET_SHIFT));
7590 }
7591
7592 err = tcam_write(np, idx, tp->key, tp->key_mask);
7593 if (err) {
7594 ret = -EINVAL;
7595 goto out;
7596 }
7597 err = tcam_assoc_write(np, idx, tp->assoc_data);
7598 if (err) {
7599 ret = -EINVAL;
7600 goto out;
7601 }
7602
7603 /* validate the entry */
7604 tp->valid = 1;
7605 np->clas.tcam_valid_entries++;
7606 out:
7607 niu_unlock_parent(np, flags);
7608
7609 return ret;
7610 }
7611
7612 static int niu_del_ethtool_tcam_entry(struct niu *np, u32 loc)
7613 {
7614 struct niu_parent *parent = np->parent;
7615 struct niu_tcam_entry *tp;
7616 u16 idx;
7617 unsigned long flags;
7618 u64 class;
7619 int ret = 0;
7620
7621 if (loc >= tcam_get_size(np))
7622 return -EINVAL;
7623
7624 niu_lock_parent(np, flags);
7625
7626 idx = tcam_get_index(np, loc);
7627 tp = &parent->tcam[idx];
7628
7629 /* if the entry is of a user defined class, then update*/
7630 class = (tp->key[0] & TCAM_V4KEY0_CLASS_CODE) >>
7631 TCAM_V4KEY0_CLASS_CODE_SHIFT;
7632
7633 if (class >= CLASS_CODE_USER_PROG1 && class <= CLASS_CODE_USER_PROG4) {
7634 int i;
7635 for (i = 0; i < NIU_L3_PROG_CLS; i++) {
7636 if (parent->l3_cls[i] == class) {
7637 parent->l3_cls_refcnt[i]--;
7638 if (!parent->l3_cls_refcnt[i]) {
7639 /* disable class */
7640 ret = tcam_user_ip_class_enable(np,
7641 class,
7642 0);
7643 if (ret)
7644 goto out;
7645 parent->l3_cls[i] = 0;
7646 parent->l3_cls_pid[i] = 0;
7647 }
7648 break;
7649 }
7650 }
7651 if (i == NIU_L3_PROG_CLS) {
7652 netdev_info(np->dev, "niu%d: In %s(): Usr class 0x%llx not found\n",
7653 parent->index, __func__,
7654 (unsigned long long)class);
7655 ret = -EINVAL;
7656 goto out;
7657 }
7658 }
7659
7660 ret = tcam_flush(np, idx);
7661 if (ret)
7662 goto out;
7663
7664 /* invalidate the entry */
7665 tp->valid = 0;
7666 np->clas.tcam_valid_entries--;
7667 out:
7668 niu_unlock_parent(np, flags);
7669
7670 return ret;
7671 }
7672
7673 static int niu_set_nfc(struct net_device *dev, struct ethtool_rxnfc *cmd)
7674 {
7675 struct niu *np = netdev_priv(dev);
7676 int ret = 0;
7677
7678 switch (cmd->cmd) {
7679 case ETHTOOL_SRXFH:
7680 ret = niu_set_hash_opts(np, cmd);
7681 break;
7682 case ETHTOOL_SRXCLSRLINS:
7683 ret = niu_add_ethtool_tcam_entry(np, cmd);
7684 break;
7685 case ETHTOOL_SRXCLSRLDEL:
7686 ret = niu_del_ethtool_tcam_entry(np, cmd->fs.location);
7687 break;
7688 default:
7689 ret = -EINVAL;
7690 break;
7691 }
7692
7693 return ret;
7694 }
7695
7696 static const struct {
7697 const char string[ETH_GSTRING_LEN];
7698 } niu_xmac_stat_keys[] = {
7699 { "tx_frames" },
7700 { "tx_bytes" },
7701 { "tx_fifo_errors" },
7702 { "tx_overflow_errors" },
7703 { "tx_max_pkt_size_errors" },
7704 { "tx_underflow_errors" },
7705 { "rx_local_faults" },
7706 { "rx_remote_faults" },
7707 { "rx_link_faults" },
7708 { "rx_align_errors" },
7709 { "rx_frags" },
7710 { "rx_mcasts" },
7711 { "rx_bcasts" },
7712 { "rx_hist_cnt1" },
7713 { "rx_hist_cnt2" },
7714 { "rx_hist_cnt3" },
7715 { "rx_hist_cnt4" },
7716 { "rx_hist_cnt5" },
7717 { "rx_hist_cnt6" },
7718 { "rx_hist_cnt7" },
7719 { "rx_octets" },
7720 { "rx_code_violations" },
7721 { "rx_len_errors" },
7722 { "rx_crc_errors" },
7723 { "rx_underflows" },
7724 { "rx_overflows" },
7725 { "pause_off_state" },
7726 { "pause_on_state" },
7727 { "pause_received" },
7728 };
7729
7730 #define NUM_XMAC_STAT_KEYS ARRAY_SIZE(niu_xmac_stat_keys)
7731
7732 static const struct {
7733 const char string[ETH_GSTRING_LEN];
7734 } niu_bmac_stat_keys[] = {
7735 { "tx_underflow_errors" },
7736 { "tx_max_pkt_size_errors" },
7737 { "tx_bytes" },
7738 { "tx_frames" },
7739 { "rx_overflows" },
7740 { "rx_frames" },
7741 { "rx_align_errors" },
7742 { "rx_crc_errors" },
7743 { "rx_len_errors" },
7744 { "pause_off_state" },
7745 { "pause_on_state" },
7746 { "pause_received" },
7747 };
7748
7749 #define NUM_BMAC_STAT_KEYS ARRAY_SIZE(niu_bmac_stat_keys)
7750
7751 static const struct {
7752 const char string[ETH_GSTRING_LEN];
7753 } niu_rxchan_stat_keys[] = {
7754 { "rx_channel" },
7755 { "rx_packets" },
7756 { "rx_bytes" },
7757 { "rx_dropped" },
7758 { "rx_errors" },
7759 };
7760
7761 #define NUM_RXCHAN_STAT_KEYS ARRAY_SIZE(niu_rxchan_stat_keys)
7762
7763 static const struct {
7764 const char string[ETH_GSTRING_LEN];
7765 } niu_txchan_stat_keys[] = {
7766 { "tx_channel" },
7767 { "tx_packets" },
7768 { "tx_bytes" },
7769 { "tx_errors" },
7770 };
7771
7772 #define NUM_TXCHAN_STAT_KEYS ARRAY_SIZE(niu_txchan_stat_keys)
7773
7774 static void niu_get_strings(struct net_device *dev, u32 stringset, u8 *data)
7775 {
7776 struct niu *np = netdev_priv(dev);
7777 int i;
7778
7779 if (stringset != ETH_SS_STATS)
7780 return;
7781
7782 if (np->flags & NIU_FLAGS_XMAC) {
7783 memcpy(data, niu_xmac_stat_keys,
7784 sizeof(niu_xmac_stat_keys));
7785 data += sizeof(niu_xmac_stat_keys);
7786 } else {
7787 memcpy(data, niu_bmac_stat_keys,
7788 sizeof(niu_bmac_stat_keys));
7789 data += sizeof(niu_bmac_stat_keys);
7790 }
7791 for (i = 0; i < np->num_rx_rings; i++) {
7792 memcpy(data, niu_rxchan_stat_keys,
7793 sizeof(niu_rxchan_stat_keys));
7794 data += sizeof(niu_rxchan_stat_keys);
7795 }
7796 for (i = 0; i < np->num_tx_rings; i++) {
7797 memcpy(data, niu_txchan_stat_keys,
7798 sizeof(niu_txchan_stat_keys));
7799 data += sizeof(niu_txchan_stat_keys);
7800 }
7801 }
7802
7803 static int niu_get_sset_count(struct net_device *dev, int stringset)
7804 {
7805 struct niu *np = netdev_priv(dev);
7806
7807 if (stringset != ETH_SS_STATS)
7808 return -EINVAL;
7809
7810 return (np->flags & NIU_FLAGS_XMAC ?
7811 NUM_XMAC_STAT_KEYS :
7812 NUM_BMAC_STAT_KEYS) +
7813 (np->num_rx_rings * NUM_RXCHAN_STAT_KEYS) +
7814 (np->num_tx_rings * NUM_TXCHAN_STAT_KEYS);
7815 }
7816
7817 static void niu_get_ethtool_stats(struct net_device *dev,
7818 struct ethtool_stats *stats, u64 *data)
7819 {
7820 struct niu *np = netdev_priv(dev);
7821 int i;
7822
7823 niu_sync_mac_stats(np);
7824 if (np->flags & NIU_FLAGS_XMAC) {
7825 memcpy(data, &np->mac_stats.xmac,
7826 sizeof(struct niu_xmac_stats));
7827 data += (sizeof(struct niu_xmac_stats) / sizeof(u64));
7828 } else {
7829 memcpy(data, &np->mac_stats.bmac,
7830 sizeof(struct niu_bmac_stats));
7831 data += (sizeof(struct niu_bmac_stats) / sizeof(u64));
7832 }
7833 for (i = 0; i < np->num_rx_rings; i++) {
7834 struct rx_ring_info *rp = &np->rx_rings[i];
7835
7836 niu_sync_rx_discard_stats(np, rp, 0);
7837
7838 data[0] = rp->rx_channel;
7839 data[1] = rp->rx_packets;
7840 data[2] = rp->rx_bytes;
7841 data[3] = rp->rx_dropped;
7842 data[4] = rp->rx_errors;
7843 data += 5;
7844 }
7845 for (i = 0; i < np->num_tx_rings; i++) {
7846 struct tx_ring_info *rp = &np->tx_rings[i];
7847
7848 data[0] = rp->tx_channel;
7849 data[1] = rp->tx_packets;
7850 data[2] = rp->tx_bytes;
7851 data[3] = rp->tx_errors;
7852 data += 4;
7853 }
7854 }
7855
7856 static u64 niu_led_state_save(struct niu *np)
7857 {
7858 if (np->flags & NIU_FLAGS_XMAC)
7859 return nr64_mac(XMAC_CONFIG);
7860 else
7861 return nr64_mac(BMAC_XIF_CONFIG);
7862 }
7863
7864 static void niu_led_state_restore(struct niu *np, u64 val)
7865 {
7866 if (np->flags & NIU_FLAGS_XMAC)
7867 nw64_mac(XMAC_CONFIG, val);
7868 else
7869 nw64_mac(BMAC_XIF_CONFIG, val);
7870 }
7871
7872 static void niu_force_led(struct niu *np, int on)
7873 {
7874 u64 val, reg, bit;
7875
7876 if (np->flags & NIU_FLAGS_XMAC) {
7877 reg = XMAC_CONFIG;
7878 bit = XMAC_CONFIG_FORCE_LED_ON;
7879 } else {
7880 reg = BMAC_XIF_CONFIG;
7881 bit = BMAC_XIF_CONFIG_LINK_LED;
7882 }
7883
7884 val = nr64_mac(reg);
7885 if (on)
7886 val |= bit;
7887 else
7888 val &= ~bit;
7889 nw64_mac(reg, val);
7890 }
7891
7892 static int niu_phys_id(struct net_device *dev, u32 data)
7893 {
7894 struct niu *np = netdev_priv(dev);
7895 u64 orig_led_state;
7896 int i;
7897
7898 if (!netif_running(dev))
7899 return -EAGAIN;
7900
7901 if (data == 0)
7902 data = 2;
7903
7904 orig_led_state = niu_led_state_save(np);
7905 for (i = 0; i < (data * 2); i++) {
7906 int on = ((i % 2) == 0);
7907
7908 niu_force_led(np, on);
7909
7910 if (msleep_interruptible(500))
7911 break;
7912 }
7913 niu_led_state_restore(np, orig_led_state);
7914
7915 return 0;
7916 }
7917
7918 static int niu_set_flags(struct net_device *dev, u32 data)
7919 {
7920 return ethtool_op_set_flags(dev, data, ETH_FLAG_RXHASH);
7921 }
7922
7923 static const struct ethtool_ops niu_ethtool_ops = {
7924 .get_drvinfo = niu_get_drvinfo,
7925 .get_link = ethtool_op_get_link,
7926 .get_msglevel = niu_get_msglevel,
7927 .set_msglevel = niu_set_msglevel,
7928 .nway_reset = niu_nway_reset,
7929 .get_eeprom_len = niu_get_eeprom_len,
7930 .get_eeprom = niu_get_eeprom,
7931 .get_settings = niu_get_settings,
7932 .set_settings = niu_set_settings,
7933 .get_strings = niu_get_strings,
7934 .get_sset_count = niu_get_sset_count,
7935 .get_ethtool_stats = niu_get_ethtool_stats,
7936 .phys_id = niu_phys_id,
7937 .get_rxnfc = niu_get_nfc,
7938 .set_rxnfc = niu_set_nfc,
7939 .set_flags = niu_set_flags,
7940 .get_flags = ethtool_op_get_flags,
7941 };
7942
7943 static int niu_ldg_assign_ldn(struct niu *np, struct niu_parent *parent,
7944 int ldg, int ldn)
7945 {
7946 if (ldg < NIU_LDG_MIN || ldg > NIU_LDG_MAX)
7947 return -EINVAL;
7948 if (ldn < 0 || ldn > LDN_MAX)
7949 return -EINVAL;
7950
7951 parent->ldg_map[ldn] = ldg;
7952
7953 if (np->parent->plat_type == PLAT_TYPE_NIU) {
7954 /* On N2 NIU, the ldn-->ldg assignments are setup and fixed by
7955 * the firmware, and we're not supposed to change them.
7956 * Validate the mapping, because if it's wrong we probably
7957 * won't get any interrupts and that's painful to debug.
7958 */
7959 if (nr64(LDG_NUM(ldn)) != ldg) {
7960 dev_err(np->device, "Port %u, mis-matched LDG assignment for ldn %d, should be %d is %llu\n",
7961 np->port, ldn, ldg,
7962 (unsigned long long) nr64(LDG_NUM(ldn)));
7963 return -EINVAL;
7964 }
7965 } else
7966 nw64(LDG_NUM(ldn), ldg);
7967
7968 return 0;
7969 }
7970
7971 static int niu_set_ldg_timer_res(struct niu *np, int res)
7972 {
7973 if (res < 0 || res > LDG_TIMER_RES_VAL)
7974 return -EINVAL;
7975
7976
7977 nw64(LDG_TIMER_RES, res);
7978
7979 return 0;
7980 }
7981
7982 static int niu_set_ldg_sid(struct niu *np, int ldg, int func, int vector)
7983 {
7984 if ((ldg < NIU_LDG_MIN || ldg > NIU_LDG_MAX) ||
7985 (func < 0 || func > 3) ||
7986 (vector < 0 || vector > 0x1f))
7987 return -EINVAL;
7988
7989 nw64(SID(ldg), (func << SID_FUNC_SHIFT) | vector);
7990
7991 return 0;
7992 }
7993
7994 static int __devinit niu_pci_eeprom_read(struct niu *np, u32 addr)
7995 {
7996 u64 frame, frame_base = (ESPC_PIO_STAT_READ_START |
7997 (addr << ESPC_PIO_STAT_ADDR_SHIFT));
7998 int limit;
7999
8000 if (addr > (ESPC_PIO_STAT_ADDR >> ESPC_PIO_STAT_ADDR_SHIFT))
8001 return -EINVAL;
8002
8003 frame = frame_base;
8004 nw64(ESPC_PIO_STAT, frame);
8005 limit = 64;
8006 do {
8007 udelay(5);
8008 frame = nr64(ESPC_PIO_STAT);
8009 if (frame & ESPC_PIO_STAT_READ_END)
8010 break;
8011 } while (limit--);
8012 if (!(frame & ESPC_PIO_STAT_READ_END)) {
8013 dev_err(np->device, "EEPROM read timeout frame[%llx]\n",
8014 (unsigned long long) frame);
8015 return -ENODEV;
8016 }
8017
8018 frame = frame_base;
8019 nw64(ESPC_PIO_STAT, frame);
8020 limit = 64;
8021 do {
8022 udelay(5);
8023 frame = nr64(ESPC_PIO_STAT);
8024 if (frame & ESPC_PIO_STAT_READ_END)
8025 break;
8026 } while (limit--);
8027 if (!(frame & ESPC_PIO_STAT_READ_END)) {
8028 dev_err(np->device, "EEPROM read timeout frame[%llx]\n",
8029 (unsigned long long) frame);
8030 return -ENODEV;
8031 }
8032
8033 frame = nr64(ESPC_PIO_STAT);
8034 return (frame & ESPC_PIO_STAT_DATA) >> ESPC_PIO_STAT_DATA_SHIFT;
8035 }
8036
8037 static int __devinit niu_pci_eeprom_read16(struct niu *np, u32 off)
8038 {
8039 int err = niu_pci_eeprom_read(np, off);
8040 u16 val;
8041
8042 if (err < 0)
8043 return err;
8044 val = (err << 8);
8045 err = niu_pci_eeprom_read(np, off + 1);
8046 if (err < 0)
8047 return err;
8048 val |= (err & 0xff);
8049
8050 return val;
8051 }
8052
8053 static int __devinit niu_pci_eeprom_read16_swp(struct niu *np, u32 off)
8054 {
8055 int err = niu_pci_eeprom_read(np, off);
8056 u16 val;
8057
8058 if (err < 0)
8059 return err;
8060
8061 val = (err & 0xff);
8062 err = niu_pci_eeprom_read(np, off + 1);
8063 if (err < 0)
8064 return err;
8065
8066 val |= (err & 0xff) << 8;
8067
8068 return val;
8069 }
8070
8071 static int __devinit niu_pci_vpd_get_propname(struct niu *np,
8072 u32 off,
8073 char *namebuf,
8074 int namebuf_len)
8075 {
8076 int i;
8077
8078 for (i = 0; i < namebuf_len; i++) {
8079 int err = niu_pci_eeprom_read(np, off + i);
8080 if (err < 0)
8081 return err;
8082 *namebuf++ = err;
8083 if (!err)
8084 break;
8085 }
8086 if (i >= namebuf_len)
8087 return -EINVAL;
8088
8089 return i + 1;
8090 }
8091
8092 static void __devinit niu_vpd_parse_version(struct niu *np)
8093 {
8094 struct niu_vpd *vpd = &np->vpd;
8095 int len = strlen(vpd->version) + 1;
8096 const char *s = vpd->version;
8097 int i;
8098
8099 for (i = 0; i < len - 5; i++) {
8100 if (!strncmp(s + i, "FCode ", 6))
8101 break;
8102 }
8103 if (i >= len - 5)
8104 return;
8105
8106 s += i + 5;
8107 sscanf(s, "%d.%d", &vpd->fcode_major, &vpd->fcode_minor);
8108
8109 netif_printk(np, probe, KERN_DEBUG, np->dev,
8110 "VPD_SCAN: FCODE major(%d) minor(%d)\n",
8111 vpd->fcode_major, vpd->fcode_minor);
8112 if (vpd->fcode_major > NIU_VPD_MIN_MAJOR ||
8113 (vpd->fcode_major == NIU_VPD_MIN_MAJOR &&
8114 vpd->fcode_minor >= NIU_VPD_MIN_MINOR))
8115 np->flags |= NIU_FLAGS_VPD_VALID;
8116 }
8117
8118 /* ESPC_PIO_EN_ENABLE must be set */
8119 static int __devinit niu_pci_vpd_scan_props(struct niu *np,
8120 u32 start, u32 end)
8121 {
8122 unsigned int found_mask = 0;
8123 #define FOUND_MASK_MODEL 0x00000001
8124 #define FOUND_MASK_BMODEL 0x00000002
8125 #define FOUND_MASK_VERS 0x00000004
8126 #define FOUND_MASK_MAC 0x00000008
8127 #define FOUND_MASK_NMAC 0x00000010
8128 #define FOUND_MASK_PHY 0x00000020
8129 #define FOUND_MASK_ALL 0x0000003f
8130
8131 netif_printk(np, probe, KERN_DEBUG, np->dev,
8132 "VPD_SCAN: start[%x] end[%x]\n", start, end);
8133 while (start < end) {
8134 int len, err, instance, type, prop_len;
8135 char namebuf[64];
8136 u8 *prop_buf;
8137 int max_len;
8138
8139 if (found_mask == FOUND_MASK_ALL) {
8140 niu_vpd_parse_version(np);
8141 return 1;
8142 }
8143
8144 err = niu_pci_eeprom_read(np, start + 2);
8145 if (err < 0)
8146 return err;
8147 len = err;
8148 start += 3;
8149
8150 instance = niu_pci_eeprom_read(np, start);
8151 type = niu_pci_eeprom_read(np, start + 3);
8152 prop_len = niu_pci_eeprom_read(np, start + 4);
8153 err = niu_pci_vpd_get_propname(np, start + 5, namebuf, 64);
8154 if (err < 0)
8155 return err;
8156
8157 prop_buf = NULL;
8158 max_len = 0;
8159 if (!strcmp(namebuf, "model")) {
8160 prop_buf = np->vpd.model;
8161 max_len = NIU_VPD_MODEL_MAX;
8162 found_mask |= FOUND_MASK_MODEL;
8163 } else if (!strcmp(namebuf, "board-model")) {
8164 prop_buf = np->vpd.board_model;
8165 max_len = NIU_VPD_BD_MODEL_MAX;
8166 found_mask |= FOUND_MASK_BMODEL;
8167 } else if (!strcmp(namebuf, "version")) {
8168 prop_buf = np->vpd.version;
8169 max_len = NIU_VPD_VERSION_MAX;
8170 found_mask |= FOUND_MASK_VERS;
8171 } else if (!strcmp(namebuf, "local-mac-address")) {
8172 prop_buf = np->vpd.local_mac;
8173 max_len = ETH_ALEN;
8174 found_mask |= FOUND_MASK_MAC;
8175 } else if (!strcmp(namebuf, "num-mac-addresses")) {
8176 prop_buf = &np->vpd.mac_num;
8177 max_len = 1;
8178 found_mask |= FOUND_MASK_NMAC;
8179 } else if (!strcmp(namebuf, "phy-type")) {
8180 prop_buf = np->vpd.phy_type;
8181 max_len = NIU_VPD_PHY_TYPE_MAX;
8182 found_mask |= FOUND_MASK_PHY;
8183 }
8184
8185 if (max_len && prop_len > max_len) {
8186 dev_err(np->device, "Property '%s' length (%d) is too long\n", namebuf, prop_len);
8187 return -EINVAL;
8188 }
8189
8190 if (prop_buf) {
8191 u32 off = start + 5 + err;
8192 int i;
8193
8194 netif_printk(np, probe, KERN_DEBUG, np->dev,
8195 "VPD_SCAN: Reading in property [%s] len[%d]\n",
8196 namebuf, prop_len);
8197 for (i = 0; i < prop_len; i++)
8198 *prop_buf++ = niu_pci_eeprom_read(np, off + i);
8199 }
8200
8201 start += len;
8202 }
8203
8204 return 0;
8205 }
8206
8207 /* ESPC_PIO_EN_ENABLE must be set */
8208 static void __devinit niu_pci_vpd_fetch(struct niu *np, u32 start)
8209 {
8210 u32 offset;
8211 int err;
8212
8213 err = niu_pci_eeprom_read16_swp(np, start + 1);
8214 if (err < 0)
8215 return;
8216
8217 offset = err + 3;
8218
8219 while (start + offset < ESPC_EEPROM_SIZE) {
8220 u32 here = start + offset;
8221 u32 end;
8222
8223 err = niu_pci_eeprom_read(np, here);
8224 if (err != 0x90)
8225 return;
8226
8227 err = niu_pci_eeprom_read16_swp(np, here + 1);
8228 if (err < 0)
8229 return;
8230
8231 here = start + offset + 3;
8232 end = start + offset + err;
8233
8234 offset += err;
8235
8236 err = niu_pci_vpd_scan_props(np, here, end);
8237 if (err < 0 || err == 1)
8238 return;
8239 }
8240 }
8241
8242 /* ESPC_PIO_EN_ENABLE must be set */
8243 static u32 __devinit niu_pci_vpd_offset(struct niu *np)
8244 {
8245 u32 start = 0, end = ESPC_EEPROM_SIZE, ret;
8246 int err;
8247
8248 while (start < end) {
8249 ret = start;
8250
8251 /* ROM header signature? */
8252 err = niu_pci_eeprom_read16(np, start + 0);
8253 if (err != 0x55aa)
8254 return 0;
8255
8256 /* Apply offset to PCI data structure. */
8257 err = niu_pci_eeprom_read16(np, start + 23);
8258 if (err < 0)
8259 return 0;
8260 start += err;
8261
8262 /* Check for "PCIR" signature. */
8263 err = niu_pci_eeprom_read16(np, start + 0);
8264 if (err != 0x5043)
8265 return 0;
8266 err = niu_pci_eeprom_read16(np, start + 2);
8267 if (err != 0x4952)
8268 return 0;
8269
8270 /* Check for OBP image type. */
8271 err = niu_pci_eeprom_read(np, start + 20);
8272 if (err < 0)
8273 return 0;
8274 if (err != 0x01) {
8275 err = niu_pci_eeprom_read(np, ret + 2);
8276 if (err < 0)
8277 return 0;
8278
8279 start = ret + (err * 512);
8280 continue;
8281 }
8282
8283 err = niu_pci_eeprom_read16_swp(np, start + 8);
8284 if (err < 0)
8285 return err;
8286 ret += err;
8287
8288 err = niu_pci_eeprom_read(np, ret + 0);
8289 if (err != 0x82)
8290 return 0;
8291
8292 return ret;
8293 }
8294
8295 return 0;
8296 }
8297
8298 static int __devinit niu_phy_type_prop_decode(struct niu *np,
8299 const char *phy_prop)
8300 {
8301 if (!strcmp(phy_prop, "mif")) {
8302 /* 1G copper, MII */
8303 np->flags &= ~(NIU_FLAGS_FIBER |
8304 NIU_FLAGS_10G);
8305 np->mac_xcvr = MAC_XCVR_MII;
8306 } else if (!strcmp(phy_prop, "xgf")) {
8307 /* 10G fiber, XPCS */
8308 np->flags |= (NIU_FLAGS_10G |
8309 NIU_FLAGS_FIBER);
8310 np->mac_xcvr = MAC_XCVR_XPCS;
8311 } else if (!strcmp(phy_prop, "pcs")) {
8312 /* 1G fiber, PCS */
8313 np->flags &= ~NIU_FLAGS_10G;
8314 np->flags |= NIU_FLAGS_FIBER;
8315 np->mac_xcvr = MAC_XCVR_PCS;
8316 } else if (!strcmp(phy_prop, "xgc")) {
8317 /* 10G copper, XPCS */
8318 np->flags |= NIU_FLAGS_10G;
8319 np->flags &= ~NIU_FLAGS_FIBER;
8320 np->mac_xcvr = MAC_XCVR_XPCS;
8321 } else if (!strcmp(phy_prop, "xgsd") || !strcmp(phy_prop, "gsd")) {
8322 /* 10G Serdes or 1G Serdes, default to 10G */
8323 np->flags |= NIU_FLAGS_10G;
8324 np->flags &= ~NIU_FLAGS_FIBER;
8325 np->flags |= NIU_FLAGS_XCVR_SERDES;
8326 np->mac_xcvr = MAC_XCVR_XPCS;
8327 } else {
8328 return -EINVAL;
8329 }
8330 return 0;
8331 }
8332
8333 static int niu_pci_vpd_get_nports(struct niu *np)
8334 {
8335 int ports = 0;
8336
8337 if ((!strcmp(np->vpd.model, NIU_QGC_LP_MDL_STR)) ||
8338 (!strcmp(np->vpd.model, NIU_QGC_PEM_MDL_STR)) ||
8339 (!strcmp(np->vpd.model, NIU_MARAMBA_MDL_STR)) ||
8340 (!strcmp(np->vpd.model, NIU_KIMI_MDL_STR)) ||
8341 (!strcmp(np->vpd.model, NIU_ALONSO_MDL_STR))) {
8342 ports = 4;
8343 } else if ((!strcmp(np->vpd.model, NIU_2XGF_LP_MDL_STR)) ||
8344 (!strcmp(np->vpd.model, NIU_2XGF_PEM_MDL_STR)) ||
8345 (!strcmp(np->vpd.model, NIU_FOXXY_MDL_STR)) ||
8346 (!strcmp(np->vpd.model, NIU_2XGF_MRVL_MDL_STR))) {
8347 ports = 2;
8348 }
8349
8350 return ports;
8351 }
8352
8353 static void __devinit niu_pci_vpd_validate(struct niu *np)
8354 {
8355 struct net_device *dev = np->dev;
8356 struct niu_vpd *vpd = &np->vpd;
8357 u8 val8;
8358
8359 if (!is_valid_ether_addr(&vpd->local_mac[0])) {
8360 dev_err(np->device, "VPD MAC invalid, falling back to SPROM\n");
8361
8362 np->flags &= ~NIU_FLAGS_VPD_VALID;
8363 return;
8364 }
8365
8366 if (!strcmp(np->vpd.model, NIU_ALONSO_MDL_STR) ||
8367 !strcmp(np->vpd.model, NIU_KIMI_MDL_STR)) {
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_PCS;
8372 if (np->port > 1) {
8373 np->flags |= NIU_FLAGS_FIBER;
8374 np->flags &= ~NIU_FLAGS_10G;
8375 }
8376 if (np->flags & NIU_FLAGS_10G)
8377 np->mac_xcvr = MAC_XCVR_XPCS;
8378 } else if (!strcmp(np->vpd.model, NIU_FOXXY_MDL_STR)) {
8379 np->flags |= (NIU_FLAGS_10G | NIU_FLAGS_FIBER |
8380 NIU_FLAGS_HOTPLUG_PHY);
8381 } else if (niu_phy_type_prop_decode(np, np->vpd.phy_type)) {
8382 dev_err(np->device, "Illegal phy string [%s]\n",
8383 np->vpd.phy_type);
8384 dev_err(np->device, "Falling back to SPROM\n");
8385 np->flags &= ~NIU_FLAGS_VPD_VALID;
8386 return;
8387 }
8388
8389 memcpy(dev->perm_addr, vpd->local_mac, ETH_ALEN);
8390
8391 val8 = dev->perm_addr[5];
8392 dev->perm_addr[5] += np->port;
8393 if (dev->perm_addr[5] < val8)
8394 dev->perm_addr[4]++;
8395
8396 memcpy(dev->dev_addr, dev->perm_addr, dev->addr_len);
8397 }
8398
8399 static int __devinit niu_pci_probe_sprom(struct niu *np)
8400 {
8401 struct net_device *dev = np->dev;
8402 int len, i;
8403 u64 val, sum;
8404 u8 val8;
8405
8406 val = (nr64(ESPC_VER_IMGSZ) & ESPC_VER_IMGSZ_IMGSZ);
8407 val >>= ESPC_VER_IMGSZ_IMGSZ_SHIFT;
8408 len = val / 4;
8409
8410 np->eeprom_len = len;
8411
8412 netif_printk(np, probe, KERN_DEBUG, np->dev,
8413 "SPROM: Image size %llu\n", (unsigned long long)val);
8414
8415 sum = 0;
8416 for (i = 0; i < len; i++) {
8417 val = nr64(ESPC_NCR(i));
8418 sum += (val >> 0) & 0xff;
8419 sum += (val >> 8) & 0xff;
8420 sum += (val >> 16) & 0xff;
8421 sum += (val >> 24) & 0xff;
8422 }
8423 netif_printk(np, probe, KERN_DEBUG, np->dev,
8424 "SPROM: Checksum %x\n", (int)(sum & 0xff));
8425 if ((sum & 0xff) != 0xab) {
8426 dev_err(np->device, "Bad SPROM checksum (%x, should be 0xab)\n", (int)(sum & 0xff));
8427 return -EINVAL;
8428 }
8429
8430 val = nr64(ESPC_PHY_TYPE);
8431 switch (np->port) {
8432 case 0:
8433 val8 = (val & ESPC_PHY_TYPE_PORT0) >>
8434 ESPC_PHY_TYPE_PORT0_SHIFT;
8435 break;
8436 case 1:
8437 val8 = (val & ESPC_PHY_TYPE_PORT1) >>
8438 ESPC_PHY_TYPE_PORT1_SHIFT;
8439 break;
8440 case 2:
8441 val8 = (val & ESPC_PHY_TYPE_PORT2) >>
8442 ESPC_PHY_TYPE_PORT2_SHIFT;
8443 break;
8444 case 3:
8445 val8 = (val & ESPC_PHY_TYPE_PORT3) >>
8446 ESPC_PHY_TYPE_PORT3_SHIFT;
8447 break;
8448 default:
8449 dev_err(np->device, "Bogus port number %u\n",
8450 np->port);
8451 return -EINVAL;
8452 }
8453 netif_printk(np, probe, KERN_DEBUG, np->dev,
8454 "SPROM: PHY type %x\n", val8);
8455
8456 switch (val8) {
8457 case ESPC_PHY_TYPE_1G_COPPER:
8458 /* 1G copper, MII */
8459 np->flags &= ~(NIU_FLAGS_FIBER |
8460 NIU_FLAGS_10G);
8461 np->mac_xcvr = MAC_XCVR_MII;
8462 break;
8463
8464 case ESPC_PHY_TYPE_1G_FIBER:
8465 /* 1G fiber, PCS */
8466 np->flags &= ~NIU_FLAGS_10G;
8467 np->flags |= NIU_FLAGS_FIBER;
8468 np->mac_xcvr = MAC_XCVR_PCS;
8469 break;
8470
8471 case ESPC_PHY_TYPE_10G_COPPER:
8472 /* 10G copper, XPCS */
8473 np->flags |= NIU_FLAGS_10G;
8474 np->flags &= ~NIU_FLAGS_FIBER;
8475 np->mac_xcvr = MAC_XCVR_XPCS;
8476 break;
8477
8478 case ESPC_PHY_TYPE_10G_FIBER:
8479 /* 10G fiber, XPCS */
8480 np->flags |= (NIU_FLAGS_10G |
8481 NIU_FLAGS_FIBER);
8482 np->mac_xcvr = MAC_XCVR_XPCS;
8483 break;
8484
8485 default:
8486 dev_err(np->device, "Bogus SPROM phy type %u\n", val8);
8487 return -EINVAL;
8488 }
8489
8490 val = nr64(ESPC_MAC_ADDR0);
8491 netif_printk(np, probe, KERN_DEBUG, np->dev,
8492 "SPROM: MAC_ADDR0[%08llx]\n", (unsigned long long)val);
8493 dev->perm_addr[0] = (val >> 0) & 0xff;
8494 dev->perm_addr[1] = (val >> 8) & 0xff;
8495 dev->perm_addr[2] = (val >> 16) & 0xff;
8496 dev->perm_addr[3] = (val >> 24) & 0xff;
8497
8498 val = nr64(ESPC_MAC_ADDR1);
8499 netif_printk(np, probe, KERN_DEBUG, np->dev,
8500 "SPROM: MAC_ADDR1[%08llx]\n", (unsigned long long)val);
8501 dev->perm_addr[4] = (val >> 0) & 0xff;
8502 dev->perm_addr[5] = (val >> 8) & 0xff;
8503
8504 if (!is_valid_ether_addr(&dev->perm_addr[0])) {
8505 dev_err(np->device, "SPROM MAC address invalid [ %pM ]\n",
8506 dev->perm_addr);
8507 return -EINVAL;
8508 }
8509
8510 val8 = dev->perm_addr[5];
8511 dev->perm_addr[5] += np->port;
8512 if (dev->perm_addr[5] < val8)
8513 dev->perm_addr[4]++;
8514
8515 memcpy(dev->dev_addr, dev->perm_addr, dev->addr_len);
8516
8517 val = nr64(ESPC_MOD_STR_LEN);
8518 netif_printk(np, probe, KERN_DEBUG, np->dev,
8519 "SPROM: MOD_STR_LEN[%llu]\n", (unsigned long long)val);
8520 if (val >= 8 * 4)
8521 return -EINVAL;
8522
8523 for (i = 0; i < val; i += 4) {
8524 u64 tmp = nr64(ESPC_NCR(5 + (i / 4)));
8525
8526 np->vpd.model[i + 3] = (tmp >> 0) & 0xff;
8527 np->vpd.model[i + 2] = (tmp >> 8) & 0xff;
8528 np->vpd.model[i + 1] = (tmp >> 16) & 0xff;
8529 np->vpd.model[i + 0] = (tmp >> 24) & 0xff;
8530 }
8531 np->vpd.model[val] = '\0';
8532
8533 val = nr64(ESPC_BD_MOD_STR_LEN);
8534 netif_printk(np, probe, KERN_DEBUG, np->dev,
8535 "SPROM: BD_MOD_STR_LEN[%llu]\n", (unsigned long long)val);
8536 if (val >= 4 * 4)
8537 return -EINVAL;
8538
8539 for (i = 0; i < val; i += 4) {
8540 u64 tmp = nr64(ESPC_NCR(14 + (i / 4)));
8541
8542 np->vpd.board_model[i + 3] = (tmp >> 0) & 0xff;
8543 np->vpd.board_model[i + 2] = (tmp >> 8) & 0xff;
8544 np->vpd.board_model[i + 1] = (tmp >> 16) & 0xff;
8545 np->vpd.board_model[i + 0] = (tmp >> 24) & 0xff;
8546 }
8547 np->vpd.board_model[val] = '\0';
8548
8549 np->vpd.mac_num =
8550 nr64(ESPC_NUM_PORTS_MACS) & ESPC_NUM_PORTS_MACS_VAL;
8551 netif_printk(np, probe, KERN_DEBUG, np->dev,
8552 "SPROM: NUM_PORTS_MACS[%d]\n", np->vpd.mac_num);
8553
8554 return 0;
8555 }
8556
8557 static int __devinit niu_get_and_validate_port(struct niu *np)
8558 {
8559 struct niu_parent *parent = np->parent;
8560
8561 if (np->port <= 1)
8562 np->flags |= NIU_FLAGS_XMAC;
8563
8564 if (!parent->num_ports) {
8565 if (parent->plat_type == PLAT_TYPE_NIU) {
8566 parent->num_ports = 2;
8567 } else {
8568 parent->num_ports = niu_pci_vpd_get_nports(np);
8569 if (!parent->num_ports) {
8570 /* Fall back to SPROM as last resort.
8571 * This will fail on most cards.
8572 */
8573 parent->num_ports = nr64(ESPC_NUM_PORTS_MACS) &
8574 ESPC_NUM_PORTS_MACS_VAL;
8575
8576 /* All of the current probing methods fail on
8577 * Maramba on-board parts.
8578 */
8579 if (!parent->num_ports)
8580 parent->num_ports = 4;
8581 }
8582 }
8583 }
8584
8585 if (np->port >= parent->num_ports)
8586 return -ENODEV;
8587
8588 return 0;
8589 }
8590
8591 static int __devinit phy_record(struct niu_parent *parent,
8592 struct phy_probe_info *p,
8593 int dev_id_1, int dev_id_2, u8 phy_port,
8594 int type)
8595 {
8596 u32 id = (dev_id_1 << 16) | dev_id_2;
8597 u8 idx;
8598
8599 if (dev_id_1 < 0 || dev_id_2 < 0)
8600 return 0;
8601 if (type == PHY_TYPE_PMA_PMD || type == PHY_TYPE_PCS) {
8602 if (((id & NIU_PHY_ID_MASK) != NIU_PHY_ID_BCM8704) &&
8603 ((id & NIU_PHY_ID_MASK) != NIU_PHY_ID_MRVL88X2011) &&
8604 ((id & NIU_PHY_ID_MASK) != NIU_PHY_ID_BCM8706))
8605 return 0;
8606 } else {
8607 if ((id & NIU_PHY_ID_MASK) != NIU_PHY_ID_BCM5464R)
8608 return 0;
8609 }
8610
8611 pr_info("niu%d: Found PHY %08x type %s at phy_port %u\n",
8612 parent->index, id,
8613 type == PHY_TYPE_PMA_PMD ? "PMA/PMD" :
8614 type == PHY_TYPE_PCS ? "PCS" : "MII",
8615 phy_port);
8616
8617 if (p->cur[type] >= NIU_MAX_PORTS) {
8618 pr_err("Too many PHY ports\n");
8619 return -EINVAL;
8620 }
8621 idx = p->cur[type];
8622 p->phy_id[type][idx] = id;
8623 p->phy_port[type][idx] = phy_port;
8624 p->cur[type] = idx + 1;
8625 return 0;
8626 }
8627
8628 static int __devinit port_has_10g(struct phy_probe_info *p, int port)
8629 {
8630 int i;
8631
8632 for (i = 0; i < p->cur[PHY_TYPE_PMA_PMD]; i++) {
8633 if (p->phy_port[PHY_TYPE_PMA_PMD][i] == port)
8634 return 1;
8635 }
8636 for (i = 0; i < p->cur[PHY_TYPE_PCS]; i++) {
8637 if (p->phy_port[PHY_TYPE_PCS][i] == port)
8638 return 1;
8639 }
8640
8641 return 0;
8642 }
8643
8644 static int __devinit count_10g_ports(struct phy_probe_info *p, int *lowest)
8645 {
8646 int port, cnt;
8647
8648 cnt = 0;
8649 *lowest = 32;
8650 for (port = 8; port < 32; port++) {
8651 if (port_has_10g(p, port)) {
8652 if (!cnt)
8653 *lowest = port;
8654 cnt++;
8655 }
8656 }
8657
8658 return cnt;
8659 }
8660
8661 static int __devinit count_1g_ports(struct phy_probe_info *p, int *lowest)
8662 {
8663 *lowest = 32;
8664 if (p->cur[PHY_TYPE_MII])
8665 *lowest = p->phy_port[PHY_TYPE_MII][0];
8666
8667 return p->cur[PHY_TYPE_MII];
8668 }
8669
8670 static void __devinit niu_n2_divide_channels(struct niu_parent *parent)
8671 {
8672 int num_ports = parent->num_ports;
8673 int i;
8674
8675 for (i = 0; i < num_ports; i++) {
8676 parent->rxchan_per_port[i] = (16 / num_ports);
8677 parent->txchan_per_port[i] = (16 / num_ports);
8678
8679 pr_info("niu%d: Port %u [%u RX chans] [%u TX chans]\n",
8680 parent->index, i,
8681 parent->rxchan_per_port[i],
8682 parent->txchan_per_port[i]);
8683 }
8684 }
8685
8686 static void __devinit niu_divide_channels(struct niu_parent *parent,
8687 int num_10g, int num_1g)
8688 {
8689 int num_ports = parent->num_ports;
8690 int rx_chans_per_10g, rx_chans_per_1g;
8691 int tx_chans_per_10g, tx_chans_per_1g;
8692 int i, tot_rx, tot_tx;
8693
8694 if (!num_10g || !num_1g) {
8695 rx_chans_per_10g = rx_chans_per_1g =
8696 (NIU_NUM_RXCHAN / num_ports);
8697 tx_chans_per_10g = tx_chans_per_1g =
8698 (NIU_NUM_TXCHAN / num_ports);
8699 } else {
8700 rx_chans_per_1g = NIU_NUM_RXCHAN / 8;
8701 rx_chans_per_10g = (NIU_NUM_RXCHAN -
8702 (rx_chans_per_1g * num_1g)) /
8703 num_10g;
8704
8705 tx_chans_per_1g = NIU_NUM_TXCHAN / 6;
8706 tx_chans_per_10g = (NIU_NUM_TXCHAN -
8707 (tx_chans_per_1g * num_1g)) /
8708 num_10g;
8709 }
8710
8711 tot_rx = tot_tx = 0;
8712 for (i = 0; i < num_ports; i++) {
8713 int type = phy_decode(parent->port_phy, i);
8714
8715 if (type == PORT_TYPE_10G) {
8716 parent->rxchan_per_port[i] = rx_chans_per_10g;
8717 parent->txchan_per_port[i] = tx_chans_per_10g;
8718 } else {
8719 parent->rxchan_per_port[i] = rx_chans_per_1g;
8720 parent->txchan_per_port[i] = tx_chans_per_1g;
8721 }
8722 pr_info("niu%d: Port %u [%u RX chans] [%u TX chans]\n",
8723 parent->index, i,
8724 parent->rxchan_per_port[i],
8725 parent->txchan_per_port[i]);
8726 tot_rx += parent->rxchan_per_port[i];
8727 tot_tx += parent->txchan_per_port[i];
8728 }
8729
8730 if (tot_rx > NIU_NUM_RXCHAN) {
8731 pr_err("niu%d: Too many RX channels (%d), resetting to one per port\n",
8732 parent->index, tot_rx);
8733 for (i = 0; i < num_ports; i++)
8734 parent->rxchan_per_port[i] = 1;
8735 }
8736 if (tot_tx > NIU_NUM_TXCHAN) {
8737 pr_err("niu%d: Too many TX channels (%d), resetting to one per port\n",
8738 parent->index, tot_tx);
8739 for (i = 0; i < num_ports; i++)
8740 parent->txchan_per_port[i] = 1;
8741 }
8742 if (tot_rx < NIU_NUM_RXCHAN || tot_tx < NIU_NUM_TXCHAN) {
8743 pr_warning("niu%d: Driver bug, wasted channels, RX[%d] TX[%d]\n",
8744 parent->index, tot_rx, tot_tx);
8745 }
8746 }
8747
8748 static void __devinit niu_divide_rdc_groups(struct niu_parent *parent,
8749 int num_10g, int num_1g)
8750 {
8751 int i, num_ports = parent->num_ports;
8752 int rdc_group, rdc_groups_per_port;
8753 int rdc_channel_base;
8754
8755 rdc_group = 0;
8756 rdc_groups_per_port = NIU_NUM_RDC_TABLES / num_ports;
8757
8758 rdc_channel_base = 0;
8759
8760 for (i = 0; i < num_ports; i++) {
8761 struct niu_rdc_tables *tp = &parent->rdc_group_cfg[i];
8762 int grp, num_channels = parent->rxchan_per_port[i];
8763 int this_channel_offset;
8764
8765 tp->first_table_num = rdc_group;
8766 tp->num_tables = rdc_groups_per_port;
8767 this_channel_offset = 0;
8768 for (grp = 0; grp < tp->num_tables; grp++) {
8769 struct rdc_table *rt = &tp->tables[grp];
8770 int slot;
8771
8772 pr_info("niu%d: Port %d RDC tbl(%d) [ ",
8773 parent->index, i, tp->first_table_num + grp);
8774 for (slot = 0; slot < NIU_RDC_TABLE_SLOTS; slot++) {
8775 rt->rxdma_channel[slot] =
8776 rdc_channel_base + this_channel_offset;
8777
8778 pr_cont("%d ", rt->rxdma_channel[slot]);
8779
8780 if (++this_channel_offset == num_channels)
8781 this_channel_offset = 0;
8782 }
8783 pr_cont("]\n");
8784 }
8785
8786 parent->rdc_default[i] = rdc_channel_base;
8787
8788 rdc_channel_base += num_channels;
8789 rdc_group += rdc_groups_per_port;
8790 }
8791 }
8792
8793 static int __devinit fill_phy_probe_info(struct niu *np,
8794 struct niu_parent *parent,
8795 struct phy_probe_info *info)
8796 {
8797 unsigned long flags;
8798 int port, err;
8799
8800 memset(info, 0, sizeof(*info));
8801
8802 /* Port 0 to 7 are reserved for onboard Serdes, probe the rest. */
8803 niu_lock_parent(np, flags);
8804 err = 0;
8805 for (port = 8; port < 32; port++) {
8806 int dev_id_1, dev_id_2;
8807
8808 dev_id_1 = mdio_read(np, port,
8809 NIU_PMA_PMD_DEV_ADDR, MII_PHYSID1);
8810 dev_id_2 = mdio_read(np, port,
8811 NIU_PMA_PMD_DEV_ADDR, MII_PHYSID2);
8812 err = phy_record(parent, info, dev_id_1, dev_id_2, port,
8813 PHY_TYPE_PMA_PMD);
8814 if (err)
8815 break;
8816 dev_id_1 = mdio_read(np, port,
8817 NIU_PCS_DEV_ADDR, MII_PHYSID1);
8818 dev_id_2 = mdio_read(np, port,
8819 NIU_PCS_DEV_ADDR, MII_PHYSID2);
8820 err = phy_record(parent, info, dev_id_1, dev_id_2, port,
8821 PHY_TYPE_PCS);
8822 if (err)
8823 break;
8824 dev_id_1 = mii_read(np, port, MII_PHYSID1);
8825 dev_id_2 = mii_read(np, port, MII_PHYSID2);
8826 err = phy_record(parent, info, dev_id_1, dev_id_2, port,
8827 PHY_TYPE_MII);
8828 if (err)
8829 break;
8830 }
8831 niu_unlock_parent(np, flags);
8832
8833 return err;
8834 }
8835
8836 static int __devinit walk_phys(struct niu *np, struct niu_parent *parent)
8837 {
8838 struct phy_probe_info *info = &parent->phy_probe_info;
8839 int lowest_10g, lowest_1g;
8840 int num_10g, num_1g;
8841 u32 val;
8842 int err;
8843
8844 num_10g = num_1g = 0;
8845
8846 if (!strcmp(np->vpd.model, NIU_ALONSO_MDL_STR) ||
8847 !strcmp(np->vpd.model, NIU_KIMI_MDL_STR)) {
8848 num_10g = 0;
8849 num_1g = 2;
8850 parent->plat_type = PLAT_TYPE_ATCA_CP3220;
8851 parent->num_ports = 4;
8852 val = (phy_encode(PORT_TYPE_1G, 0) |
8853 phy_encode(PORT_TYPE_1G, 1) |
8854 phy_encode(PORT_TYPE_1G, 2) |
8855 phy_encode(PORT_TYPE_1G, 3));
8856 } else if (!strcmp(np->vpd.model, NIU_FOXXY_MDL_STR)) {
8857 num_10g = 2;
8858 num_1g = 0;
8859 parent->num_ports = 2;
8860 val = (phy_encode(PORT_TYPE_10G, 0) |
8861 phy_encode(PORT_TYPE_10G, 1));
8862 } else if ((np->flags & NIU_FLAGS_XCVR_SERDES) &&
8863 (parent->plat_type == PLAT_TYPE_NIU)) {
8864 /* this is the Monza case */
8865 if (np->flags & NIU_FLAGS_10G) {
8866 val = (phy_encode(PORT_TYPE_10G, 0) |
8867 phy_encode(PORT_TYPE_10G, 1));
8868 } else {
8869 val = (phy_encode(PORT_TYPE_1G, 0) |
8870 phy_encode(PORT_TYPE_1G, 1));
8871 }
8872 } else {
8873 err = fill_phy_probe_info(np, parent, info);
8874 if (err)
8875 return err;
8876
8877 num_10g = count_10g_ports(info, &lowest_10g);
8878 num_1g = count_1g_ports(info, &lowest_1g);
8879
8880 switch ((num_10g << 4) | num_1g) {
8881 case 0x24:
8882 if (lowest_1g == 10)
8883 parent->plat_type = PLAT_TYPE_VF_P0;
8884 else if (lowest_1g == 26)
8885 parent->plat_type = PLAT_TYPE_VF_P1;
8886 else
8887 goto unknown_vg_1g_port;
8888
8889 /* fallthru */
8890 case 0x22:
8891 val = (phy_encode(PORT_TYPE_10G, 0) |
8892 phy_encode(PORT_TYPE_10G, 1) |
8893 phy_encode(PORT_TYPE_1G, 2) |
8894 phy_encode(PORT_TYPE_1G, 3));
8895 break;
8896
8897 case 0x20:
8898 val = (phy_encode(PORT_TYPE_10G, 0) |
8899 phy_encode(PORT_TYPE_10G, 1));
8900 break;
8901
8902 case 0x10:
8903 val = phy_encode(PORT_TYPE_10G, np->port);
8904 break;
8905
8906 case 0x14:
8907 if (lowest_1g == 10)
8908 parent->plat_type = PLAT_TYPE_VF_P0;
8909 else if (lowest_1g == 26)
8910 parent->plat_type = PLAT_TYPE_VF_P1;
8911 else
8912 goto unknown_vg_1g_port;
8913
8914 /* fallthru */
8915 case 0x13:
8916 if ((lowest_10g & 0x7) == 0)
8917 val = (phy_encode(PORT_TYPE_10G, 0) |
8918 phy_encode(PORT_TYPE_1G, 1) |
8919 phy_encode(PORT_TYPE_1G, 2) |
8920 phy_encode(PORT_TYPE_1G, 3));
8921 else
8922 val = (phy_encode(PORT_TYPE_1G, 0) |
8923 phy_encode(PORT_TYPE_10G, 1) |
8924 phy_encode(PORT_TYPE_1G, 2) |
8925 phy_encode(PORT_TYPE_1G, 3));
8926 break;
8927
8928 case 0x04:
8929 if (lowest_1g == 10)
8930 parent->plat_type = PLAT_TYPE_VF_P0;
8931 else if (lowest_1g == 26)
8932 parent->plat_type = PLAT_TYPE_VF_P1;
8933 else
8934 goto unknown_vg_1g_port;
8935
8936 val = (phy_encode(PORT_TYPE_1G, 0) |
8937 phy_encode(PORT_TYPE_1G, 1) |
8938 phy_encode(PORT_TYPE_1G, 2) |
8939 phy_encode(PORT_TYPE_1G, 3));
8940 break;
8941
8942 default:
8943 pr_err("Unsupported port config 10G[%d] 1G[%d]\n",
8944 num_10g, num_1g);
8945 return -EINVAL;
8946 }
8947 }
8948
8949 parent->port_phy = val;
8950
8951 if (parent->plat_type == PLAT_TYPE_NIU)
8952 niu_n2_divide_channels(parent);
8953 else
8954 niu_divide_channels(parent, num_10g, num_1g);
8955
8956 niu_divide_rdc_groups(parent, num_10g, num_1g);
8957
8958 return 0;
8959
8960 unknown_vg_1g_port:
8961 pr_err("Cannot identify platform type, 1gport=%d\n", lowest_1g);
8962 return -EINVAL;
8963 }
8964
8965 static int __devinit niu_probe_ports(struct niu *np)
8966 {
8967 struct niu_parent *parent = np->parent;
8968 int err, i;
8969
8970 if (parent->port_phy == PORT_PHY_UNKNOWN) {
8971 err = walk_phys(np, parent);
8972 if (err)
8973 return err;
8974
8975 niu_set_ldg_timer_res(np, 2);
8976 for (i = 0; i <= LDN_MAX; i++)
8977 niu_ldn_irq_enable(np, i, 0);
8978 }
8979
8980 if (parent->port_phy == PORT_PHY_INVALID)
8981 return -EINVAL;
8982
8983 return 0;
8984 }
8985
8986 static int __devinit niu_classifier_swstate_init(struct niu *np)
8987 {
8988 struct niu_classifier *cp = &np->clas;
8989
8990 cp->tcam_top = (u16) np->port;
8991 cp->tcam_sz = np->parent->tcam_num_entries / np->parent->num_ports;
8992 cp->h1_init = 0xffffffff;
8993 cp->h2_init = 0xffff;
8994
8995 return fflp_early_init(np);
8996 }
8997
8998 static void __devinit niu_link_config_init(struct niu *np)
8999 {
9000 struct niu_link_config *lp = &np->link_config;
9001
9002 lp->advertising = (ADVERTISED_10baseT_Half |
9003 ADVERTISED_10baseT_Full |
9004 ADVERTISED_100baseT_Half |
9005 ADVERTISED_100baseT_Full |
9006 ADVERTISED_1000baseT_Half |
9007 ADVERTISED_1000baseT_Full |
9008 ADVERTISED_10000baseT_Full |
9009 ADVERTISED_Autoneg);
9010 lp->speed = lp->active_speed = SPEED_INVALID;
9011 lp->duplex = DUPLEX_FULL;
9012 lp->active_duplex = DUPLEX_INVALID;
9013 lp->autoneg = 1;
9014 #if 0
9015 lp->loopback_mode = LOOPBACK_MAC;
9016 lp->active_speed = SPEED_10000;
9017 lp->active_duplex = DUPLEX_FULL;
9018 #else
9019 lp->loopback_mode = LOOPBACK_DISABLED;
9020 #endif
9021 }
9022
9023 static int __devinit niu_init_mac_ipp_pcs_base(struct niu *np)
9024 {
9025 switch (np->port) {
9026 case 0:
9027 np->mac_regs = np->regs + XMAC_PORT0_OFF;
9028 np->ipp_off = 0x00000;
9029 np->pcs_off = 0x04000;
9030 np->xpcs_off = 0x02000;
9031 break;
9032
9033 case 1:
9034 np->mac_regs = np->regs + XMAC_PORT1_OFF;
9035 np->ipp_off = 0x08000;
9036 np->pcs_off = 0x0a000;
9037 np->xpcs_off = 0x08000;
9038 break;
9039
9040 case 2:
9041 np->mac_regs = np->regs + BMAC_PORT2_OFF;
9042 np->ipp_off = 0x04000;
9043 np->pcs_off = 0x0e000;
9044 np->xpcs_off = ~0UL;
9045 break;
9046
9047 case 3:
9048 np->mac_regs = np->regs + BMAC_PORT3_OFF;
9049 np->ipp_off = 0x0c000;
9050 np->pcs_off = 0x12000;
9051 np->xpcs_off = ~0UL;
9052 break;
9053
9054 default:
9055 dev_err(np->device, "Port %u is invalid, cannot compute MAC block offset\n", np->port);
9056 return -EINVAL;
9057 }
9058
9059 return 0;
9060 }
9061
9062 static void __devinit niu_try_msix(struct niu *np, u8 *ldg_num_map)
9063 {
9064 struct msix_entry msi_vec[NIU_NUM_LDG];
9065 struct niu_parent *parent = np->parent;
9066 struct pci_dev *pdev = np->pdev;
9067 int i, num_irqs, err;
9068 u8 first_ldg;
9069
9070 first_ldg = (NIU_NUM_LDG / parent->num_ports) * np->port;
9071 for (i = 0; i < (NIU_NUM_LDG / parent->num_ports); i++)
9072 ldg_num_map[i] = first_ldg + i;
9073
9074 num_irqs = (parent->rxchan_per_port[np->port] +
9075 parent->txchan_per_port[np->port] +
9076 (np->port == 0 ? 3 : 1));
9077 BUG_ON(num_irqs > (NIU_NUM_LDG / parent->num_ports));
9078
9079 retry:
9080 for (i = 0; i < num_irqs; i++) {
9081 msi_vec[i].vector = 0;
9082 msi_vec[i].entry = i;
9083 }
9084
9085 err = pci_enable_msix(pdev, msi_vec, num_irqs);
9086 if (err < 0) {
9087 np->flags &= ~NIU_FLAGS_MSIX;
9088 return;
9089 }
9090 if (err > 0) {
9091 num_irqs = err;
9092 goto retry;
9093 }
9094
9095 np->flags |= NIU_FLAGS_MSIX;
9096 for (i = 0; i < num_irqs; i++)
9097 np->ldg[i].irq = msi_vec[i].vector;
9098 np->num_ldg = num_irqs;
9099 }
9100
9101 static int __devinit niu_n2_irq_init(struct niu *np, u8 *ldg_num_map)
9102 {
9103 #ifdef CONFIG_SPARC64
9104 struct platform_device *op = np->op;
9105 const u32 *int_prop;
9106 int i;
9107
9108 int_prop = of_get_property(op->dev.of_node, "interrupts", NULL);
9109 if (!int_prop)
9110 return -ENODEV;
9111
9112 for (i = 0; i < op->archdata.num_irqs; i++) {
9113 ldg_num_map[i] = int_prop[i];
9114 np->ldg[i].irq = op->archdata.irqs[i];
9115 }
9116
9117 np->num_ldg = op->archdata.num_irqs;
9118
9119 return 0;
9120 #else
9121 return -EINVAL;
9122 #endif
9123 }
9124
9125 static int __devinit niu_ldg_init(struct niu *np)
9126 {
9127 struct niu_parent *parent = np->parent;
9128 u8 ldg_num_map[NIU_NUM_LDG];
9129 int first_chan, num_chan;
9130 int i, err, ldg_rotor;
9131 u8 port;
9132
9133 np->num_ldg = 1;
9134 np->ldg[0].irq = np->dev->irq;
9135 if (parent->plat_type == PLAT_TYPE_NIU) {
9136 err = niu_n2_irq_init(np, ldg_num_map);
9137 if (err)
9138 return err;
9139 } else
9140 niu_try_msix(np, ldg_num_map);
9141
9142 port = np->port;
9143 for (i = 0; i < np->num_ldg; i++) {
9144 struct niu_ldg *lp = &np->ldg[i];
9145
9146 netif_napi_add(np->dev, &lp->napi, niu_poll, 64);
9147
9148 lp->np = np;
9149 lp->ldg_num = ldg_num_map[i];
9150 lp->timer = 2; /* XXX */
9151
9152 /* On N2 NIU the firmware has setup the SID mappings so they go
9153 * to the correct values that will route the LDG to the proper
9154 * interrupt in the NCU interrupt table.
9155 */
9156 if (np->parent->plat_type != PLAT_TYPE_NIU) {
9157 err = niu_set_ldg_sid(np, lp->ldg_num, port, i);
9158 if (err)
9159 return err;
9160 }
9161 }
9162
9163 /* We adopt the LDG assignment ordering used by the N2 NIU
9164 * 'interrupt' properties because that simplifies a lot of
9165 * things. This ordering is:
9166 *
9167 * MAC
9168 * MIF (if port zero)
9169 * SYSERR (if port zero)
9170 * RX channels
9171 * TX channels
9172 */
9173
9174 ldg_rotor = 0;
9175
9176 err = niu_ldg_assign_ldn(np, parent, ldg_num_map[ldg_rotor],
9177 LDN_MAC(port));
9178 if (err)
9179 return err;
9180
9181 ldg_rotor++;
9182 if (ldg_rotor == np->num_ldg)
9183 ldg_rotor = 0;
9184
9185 if (port == 0) {
9186 err = niu_ldg_assign_ldn(np, parent,
9187 ldg_num_map[ldg_rotor],
9188 LDN_MIF);
9189 if (err)
9190 return err;
9191
9192 ldg_rotor++;
9193 if (ldg_rotor == np->num_ldg)
9194 ldg_rotor = 0;
9195
9196 err = niu_ldg_assign_ldn(np, parent,
9197 ldg_num_map[ldg_rotor],
9198 LDN_DEVICE_ERROR);
9199 if (err)
9200 return err;
9201
9202 ldg_rotor++;
9203 if (ldg_rotor == np->num_ldg)
9204 ldg_rotor = 0;
9205
9206 }
9207
9208 first_chan = 0;
9209 for (i = 0; i < port; i++)
9210 first_chan += parent->rxchan_per_port[port];
9211 num_chan = parent->rxchan_per_port[port];
9212
9213 for (i = first_chan; i < (first_chan + num_chan); i++) {
9214 err = niu_ldg_assign_ldn(np, parent,
9215 ldg_num_map[ldg_rotor],
9216 LDN_RXDMA(i));
9217 if (err)
9218 return err;
9219 ldg_rotor++;
9220 if (ldg_rotor == np->num_ldg)
9221 ldg_rotor = 0;
9222 }
9223
9224 first_chan = 0;
9225 for (i = 0; i < port; i++)
9226 first_chan += parent->txchan_per_port[port];
9227 num_chan = parent->txchan_per_port[port];
9228 for (i = first_chan; i < (first_chan + num_chan); i++) {
9229 err = niu_ldg_assign_ldn(np, parent,
9230 ldg_num_map[ldg_rotor],
9231 LDN_TXDMA(i));
9232 if (err)
9233 return err;
9234 ldg_rotor++;
9235 if (ldg_rotor == np->num_ldg)
9236 ldg_rotor = 0;
9237 }
9238
9239 return 0;
9240 }
9241
9242 static void __devexit niu_ldg_free(struct niu *np)
9243 {
9244 if (np->flags & NIU_FLAGS_MSIX)
9245 pci_disable_msix(np->pdev);
9246 }
9247
9248 static int __devinit niu_get_of_props(struct niu *np)
9249 {
9250 #ifdef CONFIG_SPARC64
9251 struct net_device *dev = np->dev;
9252 struct device_node *dp;
9253 const char *phy_type;
9254 const u8 *mac_addr;
9255 const char *model;
9256 int prop_len;
9257
9258 if (np->parent->plat_type == PLAT_TYPE_NIU)
9259 dp = np->op->dev.of_node;
9260 else
9261 dp = pci_device_to_OF_node(np->pdev);
9262
9263 phy_type = of_get_property(dp, "phy-type", &prop_len);
9264 if (!phy_type) {
9265 netdev_err(dev, "%s: OF node lacks phy-type property\n",
9266 dp->full_name);
9267 return -EINVAL;
9268 }
9269
9270 if (!strcmp(phy_type, "none"))
9271 return -ENODEV;
9272
9273 strcpy(np->vpd.phy_type, phy_type);
9274
9275 if (niu_phy_type_prop_decode(np, np->vpd.phy_type)) {
9276 netdev_err(dev, "%s: Illegal phy string [%s]\n",
9277 dp->full_name, np->vpd.phy_type);
9278 return -EINVAL;
9279 }
9280
9281 mac_addr = of_get_property(dp, "local-mac-address", &prop_len);
9282 if (!mac_addr) {
9283 netdev_err(dev, "%s: OF node lacks local-mac-address property\n",
9284 dp->full_name);
9285 return -EINVAL;
9286 }
9287 if (prop_len != dev->addr_len) {
9288 netdev_err(dev, "%s: OF MAC address prop len (%d) is wrong\n",
9289 dp->full_name, prop_len);
9290 }
9291 memcpy(dev->perm_addr, mac_addr, dev->addr_len);
9292 if (!is_valid_ether_addr(&dev->perm_addr[0])) {
9293 netdev_err(dev, "%s: OF MAC address is invalid\n",
9294 dp->full_name);
9295 netdev_err(dev, "%s: [ %pM ]\n", dp->full_name, dev->perm_addr);
9296 return -EINVAL;
9297 }
9298
9299 memcpy(dev->dev_addr, dev->perm_addr, dev->addr_len);
9300
9301 model = of_get_property(dp, "model", &prop_len);
9302
9303 if (model)
9304 strcpy(np->vpd.model, model);
9305
9306 if (of_find_property(dp, "hot-swappable-phy", &prop_len)) {
9307 np->flags |= (NIU_FLAGS_10G | NIU_FLAGS_FIBER |
9308 NIU_FLAGS_HOTPLUG_PHY);
9309 }
9310
9311 return 0;
9312 #else
9313 return -EINVAL;
9314 #endif
9315 }
9316
9317 static int __devinit niu_get_invariants(struct niu *np)
9318 {
9319 int err, have_props;
9320 u32 offset;
9321
9322 err = niu_get_of_props(np);
9323 if (err == -ENODEV)
9324 return err;
9325
9326 have_props = !err;
9327
9328 err = niu_init_mac_ipp_pcs_base(np);
9329 if (err)
9330 return err;
9331
9332 if (have_props) {
9333 err = niu_get_and_validate_port(np);
9334 if (err)
9335 return err;
9336
9337 } else {
9338 if (np->parent->plat_type == PLAT_TYPE_NIU)
9339 return -EINVAL;
9340
9341 nw64(ESPC_PIO_EN, ESPC_PIO_EN_ENABLE);
9342 offset = niu_pci_vpd_offset(np);
9343 netif_printk(np, probe, KERN_DEBUG, np->dev,
9344 "%s() VPD offset [%08x]\n", __func__, offset);
9345 if (offset)
9346 niu_pci_vpd_fetch(np, offset);
9347 nw64(ESPC_PIO_EN, 0);
9348
9349 if (np->flags & NIU_FLAGS_VPD_VALID) {
9350 niu_pci_vpd_validate(np);
9351 err = niu_get_and_validate_port(np);
9352 if (err)
9353 return err;
9354 }
9355
9356 if (!(np->flags & NIU_FLAGS_VPD_VALID)) {
9357 err = niu_get_and_validate_port(np);
9358 if (err)
9359 return err;
9360 err = niu_pci_probe_sprom(np);
9361 if (err)
9362 return err;
9363 }
9364 }
9365
9366 err = niu_probe_ports(np);
9367 if (err)
9368 return err;
9369
9370 niu_ldg_init(np);
9371
9372 niu_classifier_swstate_init(np);
9373 niu_link_config_init(np);
9374
9375 err = niu_determine_phy_disposition(np);
9376 if (!err)
9377 err = niu_init_link(np);
9378
9379 return err;
9380 }
9381
9382 static LIST_HEAD(niu_parent_list);
9383 static DEFINE_MUTEX(niu_parent_lock);
9384 static int niu_parent_index;
9385
9386 static ssize_t show_port_phy(struct device *dev,
9387 struct device_attribute *attr, char *buf)
9388 {
9389 struct platform_device *plat_dev = to_platform_device(dev);
9390 struct niu_parent *p = plat_dev->dev.platform_data;
9391 u32 port_phy = p->port_phy;
9392 char *orig_buf = buf;
9393 int i;
9394
9395 if (port_phy == PORT_PHY_UNKNOWN ||
9396 port_phy == PORT_PHY_INVALID)
9397 return 0;
9398
9399 for (i = 0; i < p->num_ports; i++) {
9400 const char *type_str;
9401 int type;
9402
9403 type = phy_decode(port_phy, i);
9404 if (type == PORT_TYPE_10G)
9405 type_str = "10G";
9406 else
9407 type_str = "1G";
9408 buf += sprintf(buf,
9409 (i == 0) ? "%s" : " %s",
9410 type_str);
9411 }
9412 buf += sprintf(buf, "\n");
9413 return buf - orig_buf;
9414 }
9415
9416 static ssize_t show_plat_type(struct device *dev,
9417 struct device_attribute *attr, char *buf)
9418 {
9419 struct platform_device *plat_dev = to_platform_device(dev);
9420 struct niu_parent *p = plat_dev->dev.platform_data;
9421 const char *type_str;
9422
9423 switch (p->plat_type) {
9424 case PLAT_TYPE_ATLAS:
9425 type_str = "atlas";
9426 break;
9427 case PLAT_TYPE_NIU:
9428 type_str = "niu";
9429 break;
9430 case PLAT_TYPE_VF_P0:
9431 type_str = "vf_p0";
9432 break;
9433 case PLAT_TYPE_VF_P1:
9434 type_str = "vf_p1";
9435 break;
9436 default:
9437 type_str = "unknown";
9438 break;
9439 }
9440
9441 return sprintf(buf, "%s\n", type_str);
9442 }
9443
9444 static ssize_t __show_chan_per_port(struct device *dev,
9445 struct device_attribute *attr, char *buf,
9446 int rx)
9447 {
9448 struct platform_device *plat_dev = to_platform_device(dev);
9449 struct niu_parent *p = plat_dev->dev.platform_data;
9450 char *orig_buf = buf;
9451 u8 *arr;
9452 int i;
9453
9454 arr = (rx ? p->rxchan_per_port : p->txchan_per_port);
9455
9456 for (i = 0; i < p->num_ports; i++) {
9457 buf += sprintf(buf,
9458 (i == 0) ? "%d" : " %d",
9459 arr[i]);
9460 }
9461 buf += sprintf(buf, "\n");
9462
9463 return buf - orig_buf;
9464 }
9465
9466 static ssize_t show_rxchan_per_port(struct device *dev,
9467 struct device_attribute *attr, char *buf)
9468 {
9469 return __show_chan_per_port(dev, attr, buf, 1);
9470 }
9471
9472 static ssize_t show_txchan_per_port(struct device *dev,
9473 struct device_attribute *attr, char *buf)
9474 {
9475 return __show_chan_per_port(dev, attr, buf, 1);
9476 }
9477
9478 static ssize_t show_num_ports(struct device *dev,
9479 struct device_attribute *attr, char *buf)
9480 {
9481 struct platform_device *plat_dev = to_platform_device(dev);
9482 struct niu_parent *p = plat_dev->dev.platform_data;
9483
9484 return sprintf(buf, "%d\n", p->num_ports);
9485 }
9486
9487 static struct device_attribute niu_parent_attributes[] = {
9488 __ATTR(port_phy, S_IRUGO, show_port_phy, NULL),
9489 __ATTR(plat_type, S_IRUGO, show_plat_type, NULL),
9490 __ATTR(rxchan_per_port, S_IRUGO, show_rxchan_per_port, NULL),
9491 __ATTR(txchan_per_port, S_IRUGO, show_txchan_per_port, NULL),
9492 __ATTR(num_ports, S_IRUGO, show_num_ports, NULL),
9493 {}
9494 };
9495
9496 static struct niu_parent * __devinit niu_new_parent(struct niu *np,
9497 union niu_parent_id *id,
9498 u8 ptype)
9499 {
9500 struct platform_device *plat_dev;
9501 struct niu_parent *p;
9502 int i;
9503
9504 plat_dev = platform_device_register_simple("niu-board", niu_parent_index,
9505 NULL, 0);
9506 if (IS_ERR(plat_dev))
9507 return NULL;
9508
9509 for (i = 0; attr_name(niu_parent_attributes[i]); i++) {
9510 int err = device_create_file(&plat_dev->dev,
9511 &niu_parent_attributes[i]);
9512 if (err)
9513 goto fail_unregister;
9514 }
9515
9516 p = kzalloc(sizeof(*p), GFP_KERNEL);
9517 if (!p)
9518 goto fail_unregister;
9519
9520 p->index = niu_parent_index++;
9521
9522 plat_dev->dev.platform_data = p;
9523 p->plat_dev = plat_dev;
9524
9525 memcpy(&p->id, id, sizeof(*id));
9526 p->plat_type = ptype;
9527 INIT_LIST_HEAD(&p->list);
9528 atomic_set(&p->refcnt, 0);
9529 list_add(&p->list, &niu_parent_list);
9530 spin_lock_init(&p->lock);
9531
9532 p->rxdma_clock_divider = 7500;
9533
9534 p->tcam_num_entries = NIU_PCI_TCAM_ENTRIES;
9535 if (p->plat_type == PLAT_TYPE_NIU)
9536 p->tcam_num_entries = NIU_NONPCI_TCAM_ENTRIES;
9537
9538 for (i = CLASS_CODE_USER_PROG1; i <= CLASS_CODE_SCTP_IPV6; i++) {
9539 int index = i - CLASS_CODE_USER_PROG1;
9540
9541 p->tcam_key[index] = TCAM_KEY_TSEL;
9542 p->flow_key[index] = (FLOW_KEY_IPSA |
9543 FLOW_KEY_IPDA |
9544 FLOW_KEY_PROTO |
9545 (FLOW_KEY_L4_BYTE12 <<
9546 FLOW_KEY_L4_0_SHIFT) |
9547 (FLOW_KEY_L4_BYTE12 <<
9548 FLOW_KEY_L4_1_SHIFT));
9549 }
9550
9551 for (i = 0; i < LDN_MAX + 1; i++)
9552 p->ldg_map[i] = LDG_INVALID;
9553
9554 return p;
9555
9556 fail_unregister:
9557 platform_device_unregister(plat_dev);
9558 return NULL;
9559 }
9560
9561 static struct niu_parent * __devinit niu_get_parent(struct niu *np,
9562 union niu_parent_id *id,
9563 u8 ptype)
9564 {
9565 struct niu_parent *p, *tmp;
9566 int port = np->port;
9567
9568 mutex_lock(&niu_parent_lock);
9569 p = NULL;
9570 list_for_each_entry(tmp, &niu_parent_list, list) {
9571 if (!memcmp(id, &tmp->id, sizeof(*id))) {
9572 p = tmp;
9573 break;
9574 }
9575 }
9576 if (!p)
9577 p = niu_new_parent(np, id, ptype);
9578
9579 if (p) {
9580 char port_name[6];
9581 int err;
9582
9583 sprintf(port_name, "port%d", port);
9584 err = sysfs_create_link(&p->plat_dev->dev.kobj,
9585 &np->device->kobj,
9586 port_name);
9587 if (!err) {
9588 p->ports[port] = np;
9589 atomic_inc(&p->refcnt);
9590 }
9591 }
9592 mutex_unlock(&niu_parent_lock);
9593
9594 return p;
9595 }
9596
9597 static void niu_put_parent(struct niu *np)
9598 {
9599 struct niu_parent *p = np->parent;
9600 u8 port = np->port;
9601 char port_name[6];
9602
9603 BUG_ON(!p || p->ports[port] != np);
9604
9605 netif_printk(np, probe, KERN_DEBUG, np->dev,
9606 "%s() port[%u]\n", __func__, port);
9607
9608 sprintf(port_name, "port%d", port);
9609
9610 mutex_lock(&niu_parent_lock);
9611
9612 sysfs_remove_link(&p->plat_dev->dev.kobj, port_name);
9613
9614 p->ports[port] = NULL;
9615 np->parent = NULL;
9616
9617 if (atomic_dec_and_test(&p->refcnt)) {
9618 list_del(&p->list);
9619 platform_device_unregister(p->plat_dev);
9620 }
9621
9622 mutex_unlock(&niu_parent_lock);
9623 }
9624
9625 static void *niu_pci_alloc_coherent(struct device *dev, size_t size,
9626 u64 *handle, gfp_t flag)
9627 {
9628 dma_addr_t dh;
9629 void *ret;
9630
9631 ret = dma_alloc_coherent(dev, size, &dh, flag);
9632 if (ret)
9633 *handle = dh;
9634 return ret;
9635 }
9636
9637 static void niu_pci_free_coherent(struct device *dev, size_t size,
9638 void *cpu_addr, u64 handle)
9639 {
9640 dma_free_coherent(dev, size, cpu_addr, handle);
9641 }
9642
9643 static u64 niu_pci_map_page(struct device *dev, struct page *page,
9644 unsigned long offset, size_t size,
9645 enum dma_data_direction direction)
9646 {
9647 return dma_map_page(dev, page, offset, size, direction);
9648 }
9649
9650 static void niu_pci_unmap_page(struct device *dev, u64 dma_address,
9651 size_t size, enum dma_data_direction direction)
9652 {
9653 dma_unmap_page(dev, dma_address, size, direction);
9654 }
9655
9656 static u64 niu_pci_map_single(struct device *dev, void *cpu_addr,
9657 size_t size,
9658 enum dma_data_direction direction)
9659 {
9660 return dma_map_single(dev, cpu_addr, size, direction);
9661 }
9662
9663 static void niu_pci_unmap_single(struct device *dev, u64 dma_address,
9664 size_t size,
9665 enum dma_data_direction direction)
9666 {
9667 dma_unmap_single(dev, dma_address, size, direction);
9668 }
9669
9670 static const struct niu_ops niu_pci_ops = {
9671 .alloc_coherent = niu_pci_alloc_coherent,
9672 .free_coherent = niu_pci_free_coherent,
9673 .map_page = niu_pci_map_page,
9674 .unmap_page = niu_pci_unmap_page,
9675 .map_single = niu_pci_map_single,
9676 .unmap_single = niu_pci_unmap_single,
9677 };
9678
9679 static void __devinit niu_driver_version(void)
9680 {
9681 static int niu_version_printed;
9682
9683 if (niu_version_printed++ == 0)
9684 pr_info("%s", version);
9685 }
9686
9687 static struct net_device * __devinit niu_alloc_and_init(
9688 struct device *gen_dev, struct pci_dev *pdev,
9689 struct platform_device *op, const struct niu_ops *ops,
9690 u8 port)
9691 {
9692 struct net_device *dev;
9693 struct niu *np;
9694
9695 dev = alloc_etherdev_mq(sizeof(struct niu), NIU_NUM_TXCHAN);
9696 if (!dev) {
9697 dev_err(gen_dev, "Etherdev alloc failed, aborting\n");
9698 return NULL;
9699 }
9700
9701 SET_NETDEV_DEV(dev, gen_dev);
9702
9703 np = netdev_priv(dev);
9704 np->dev = dev;
9705 np->pdev = pdev;
9706 np->op = op;
9707 np->device = gen_dev;
9708 np->ops = ops;
9709
9710 np->msg_enable = niu_debug;
9711
9712 spin_lock_init(&np->lock);
9713 INIT_WORK(&np->reset_task, niu_reset_task);
9714
9715 np->port = port;
9716
9717 return dev;
9718 }
9719
9720 static const struct net_device_ops niu_netdev_ops = {
9721 .ndo_open = niu_open,
9722 .ndo_stop = niu_close,
9723 .ndo_start_xmit = niu_start_xmit,
9724 .ndo_get_stats = niu_get_stats,
9725 .ndo_set_multicast_list = niu_set_rx_mode,
9726 .ndo_validate_addr = eth_validate_addr,
9727 .ndo_set_mac_address = niu_set_mac_addr,
9728 .ndo_do_ioctl = niu_ioctl,
9729 .ndo_tx_timeout = niu_tx_timeout,
9730 .ndo_change_mtu = niu_change_mtu,
9731 };
9732
9733 static void __devinit niu_assign_netdev_ops(struct net_device *dev)
9734 {
9735 dev->netdev_ops = &niu_netdev_ops;
9736 dev->ethtool_ops = &niu_ethtool_ops;
9737 dev->watchdog_timeo = NIU_TX_TIMEOUT;
9738 }
9739
9740 static void __devinit niu_device_announce(struct niu *np)
9741 {
9742 struct net_device *dev = np->dev;
9743
9744 pr_info("%s: NIU Ethernet %pM\n", dev->name, dev->dev_addr);
9745
9746 if (np->parent->plat_type == PLAT_TYPE_ATCA_CP3220) {
9747 pr_info("%s: Port type[%s] mode[%s:%s] XCVR[%s] phy[%s]\n",
9748 dev->name,
9749 (np->flags & NIU_FLAGS_XMAC ? "XMAC" : "BMAC"),
9750 (np->flags & NIU_FLAGS_10G ? "10G" : "1G"),
9751 (np->flags & NIU_FLAGS_FIBER ? "RGMII FIBER" : "SERDES"),
9752 (np->mac_xcvr == MAC_XCVR_MII ? "MII" :
9753 (np->mac_xcvr == MAC_XCVR_PCS ? "PCS" : "XPCS")),
9754 np->vpd.phy_type);
9755 } else {
9756 pr_info("%s: Port type[%s] mode[%s:%s] XCVR[%s] phy[%s]\n",
9757 dev->name,
9758 (np->flags & NIU_FLAGS_XMAC ? "XMAC" : "BMAC"),
9759 (np->flags & NIU_FLAGS_10G ? "10G" : "1G"),
9760 (np->flags & NIU_FLAGS_FIBER ? "FIBER" :
9761 (np->flags & NIU_FLAGS_XCVR_SERDES ? "SERDES" :
9762 "COPPER")),
9763 (np->mac_xcvr == MAC_XCVR_MII ? "MII" :
9764 (np->mac_xcvr == MAC_XCVR_PCS ? "PCS" : "XPCS")),
9765 np->vpd.phy_type);
9766 }
9767 }
9768
9769 static void __devinit niu_set_basic_features(struct net_device *dev)
9770 {
9771 dev->features |= (NETIF_F_SG | NETIF_F_HW_CSUM |
9772 NETIF_F_GRO | NETIF_F_RXHASH);
9773 }
9774
9775 static int __devinit niu_pci_init_one(struct pci_dev *pdev,
9776 const struct pci_device_id *ent)
9777 {
9778 union niu_parent_id parent_id;
9779 struct net_device *dev;
9780 struct niu *np;
9781 int err, pos;
9782 u64 dma_mask;
9783 u16 val16;
9784
9785 niu_driver_version();
9786
9787 err = pci_enable_device(pdev);
9788 if (err) {
9789 dev_err(&pdev->dev, "Cannot enable PCI device, aborting\n");
9790 return err;
9791 }
9792
9793 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM) ||
9794 !(pci_resource_flags(pdev, 2) & IORESOURCE_MEM)) {
9795 dev_err(&pdev->dev, "Cannot find proper PCI device base addresses, aborting\n");
9796 err = -ENODEV;
9797 goto err_out_disable_pdev;
9798 }
9799
9800 err = pci_request_regions(pdev, DRV_MODULE_NAME);
9801 if (err) {
9802 dev_err(&pdev->dev, "Cannot obtain PCI resources, aborting\n");
9803 goto err_out_disable_pdev;
9804 }
9805
9806 pos = pci_find_capability(pdev, PCI_CAP_ID_EXP);
9807 if (pos <= 0) {
9808 dev_err(&pdev->dev, "Cannot find PCI Express capability, aborting\n");
9809 goto err_out_free_res;
9810 }
9811
9812 dev = niu_alloc_and_init(&pdev->dev, pdev, NULL,
9813 &niu_pci_ops, PCI_FUNC(pdev->devfn));
9814 if (!dev) {
9815 err = -ENOMEM;
9816 goto err_out_free_res;
9817 }
9818 np = netdev_priv(dev);
9819
9820 memset(&parent_id, 0, sizeof(parent_id));
9821 parent_id.pci.domain = pci_domain_nr(pdev->bus);
9822 parent_id.pci.bus = pdev->bus->number;
9823 parent_id.pci.device = PCI_SLOT(pdev->devfn);
9824
9825 np->parent = niu_get_parent(np, &parent_id,
9826 PLAT_TYPE_ATLAS);
9827 if (!np->parent) {
9828 err = -ENOMEM;
9829 goto err_out_free_dev;
9830 }
9831
9832 pci_read_config_word(pdev, pos + PCI_EXP_DEVCTL, &val16);
9833 val16 &= ~PCI_EXP_DEVCTL_NOSNOOP_EN;
9834 val16 |= (PCI_EXP_DEVCTL_CERE |
9835 PCI_EXP_DEVCTL_NFERE |
9836 PCI_EXP_DEVCTL_FERE |
9837 PCI_EXP_DEVCTL_URRE |
9838 PCI_EXP_DEVCTL_RELAX_EN);
9839 pci_write_config_word(pdev, pos + PCI_EXP_DEVCTL, val16);
9840
9841 dma_mask = DMA_BIT_MASK(44);
9842 err = pci_set_dma_mask(pdev, dma_mask);
9843 if (!err) {
9844 dev->features |= NETIF_F_HIGHDMA;
9845 err = pci_set_consistent_dma_mask(pdev, dma_mask);
9846 if (err) {
9847 dev_err(&pdev->dev, "Unable to obtain 44 bit DMA for consistent allocations, aborting\n");
9848 goto err_out_release_parent;
9849 }
9850 }
9851 if (err || dma_mask == DMA_BIT_MASK(32)) {
9852 err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
9853 if (err) {
9854 dev_err(&pdev->dev, "No usable DMA configuration, aborting\n");
9855 goto err_out_release_parent;
9856 }
9857 }
9858
9859 niu_set_basic_features(dev);
9860
9861 np->regs = pci_ioremap_bar(pdev, 0);
9862 if (!np->regs) {
9863 dev_err(&pdev->dev, "Cannot map device registers, aborting\n");
9864 err = -ENOMEM;
9865 goto err_out_release_parent;
9866 }
9867
9868 pci_set_master(pdev);
9869 pci_save_state(pdev);
9870
9871 dev->irq = pdev->irq;
9872
9873 niu_assign_netdev_ops(dev);
9874
9875 err = niu_get_invariants(np);
9876 if (err) {
9877 if (err != -ENODEV)
9878 dev_err(&pdev->dev, "Problem fetching invariants of chip, aborting\n");
9879 goto err_out_iounmap;
9880 }
9881
9882 err = register_netdev(dev);
9883 if (err) {
9884 dev_err(&pdev->dev, "Cannot register net device, aborting\n");
9885 goto err_out_iounmap;
9886 }
9887
9888 pci_set_drvdata(pdev, dev);
9889
9890 niu_device_announce(np);
9891
9892 return 0;
9893
9894 err_out_iounmap:
9895 if (np->regs) {
9896 iounmap(np->regs);
9897 np->regs = NULL;
9898 }
9899
9900 err_out_release_parent:
9901 niu_put_parent(np);
9902
9903 err_out_free_dev:
9904 free_netdev(dev);
9905
9906 err_out_free_res:
9907 pci_release_regions(pdev);
9908
9909 err_out_disable_pdev:
9910 pci_disable_device(pdev);
9911 pci_set_drvdata(pdev, NULL);
9912
9913 return err;
9914 }
9915
9916 static void __devexit niu_pci_remove_one(struct pci_dev *pdev)
9917 {
9918 struct net_device *dev = pci_get_drvdata(pdev);
9919
9920 if (dev) {
9921 struct niu *np = netdev_priv(dev);
9922
9923 unregister_netdev(dev);
9924 if (np->regs) {
9925 iounmap(np->regs);
9926 np->regs = NULL;
9927 }
9928
9929 niu_ldg_free(np);
9930
9931 niu_put_parent(np);
9932
9933 free_netdev(dev);
9934 pci_release_regions(pdev);
9935 pci_disable_device(pdev);
9936 pci_set_drvdata(pdev, NULL);
9937 }
9938 }
9939
9940 static int niu_suspend(struct pci_dev *pdev, pm_message_t state)
9941 {
9942 struct net_device *dev = pci_get_drvdata(pdev);
9943 struct niu *np = netdev_priv(dev);
9944 unsigned long flags;
9945
9946 if (!netif_running(dev))
9947 return 0;
9948
9949 flush_work_sync(&np->reset_task);
9950 niu_netif_stop(np);
9951
9952 del_timer_sync(&np->timer);
9953
9954 spin_lock_irqsave(&np->lock, flags);
9955 niu_enable_interrupts(np, 0);
9956 spin_unlock_irqrestore(&np->lock, flags);
9957
9958 netif_device_detach(dev);
9959
9960 spin_lock_irqsave(&np->lock, flags);
9961 niu_stop_hw(np);
9962 spin_unlock_irqrestore(&np->lock, flags);
9963
9964 pci_save_state(pdev);
9965
9966 return 0;
9967 }
9968
9969 static int niu_resume(struct pci_dev *pdev)
9970 {
9971 struct net_device *dev = pci_get_drvdata(pdev);
9972 struct niu *np = netdev_priv(dev);
9973 unsigned long flags;
9974 int err;
9975
9976 if (!netif_running(dev))
9977 return 0;
9978
9979 pci_restore_state(pdev);
9980
9981 netif_device_attach(dev);
9982
9983 spin_lock_irqsave(&np->lock, flags);
9984
9985 err = niu_init_hw(np);
9986 if (!err) {
9987 np->timer.expires = jiffies + HZ;
9988 add_timer(&np->timer);
9989 niu_netif_start(np);
9990 }
9991
9992 spin_unlock_irqrestore(&np->lock, flags);
9993
9994 return err;
9995 }
9996
9997 static struct pci_driver niu_pci_driver = {
9998 .name = DRV_MODULE_NAME,
9999 .id_table = niu_pci_tbl,
10000 .probe = niu_pci_init_one,
10001 .remove = __devexit_p(niu_pci_remove_one),
10002 .suspend = niu_suspend,
10003 .resume = niu_resume,
10004 };
10005
10006 #ifdef CONFIG_SPARC64
10007 static void *niu_phys_alloc_coherent(struct device *dev, size_t size,
10008 u64 *dma_addr, gfp_t flag)
10009 {
10010 unsigned long order = get_order(size);
10011 unsigned long page = __get_free_pages(flag, order);
10012
10013 if (page == 0UL)
10014 return NULL;
10015 memset((char *)page, 0, PAGE_SIZE << order);
10016 *dma_addr = __pa(page);
10017
10018 return (void *) page;
10019 }
10020
10021 static void niu_phys_free_coherent(struct device *dev, size_t size,
10022 void *cpu_addr, u64 handle)
10023 {
10024 unsigned long order = get_order(size);
10025
10026 free_pages((unsigned long) cpu_addr, order);
10027 }
10028
10029 static u64 niu_phys_map_page(struct device *dev, struct page *page,
10030 unsigned long offset, size_t size,
10031 enum dma_data_direction direction)
10032 {
10033 return page_to_phys(page) + offset;
10034 }
10035
10036 static void niu_phys_unmap_page(struct device *dev, u64 dma_address,
10037 size_t size, enum dma_data_direction direction)
10038 {
10039 /* Nothing to do. */
10040 }
10041
10042 static u64 niu_phys_map_single(struct device *dev, void *cpu_addr,
10043 size_t size,
10044 enum dma_data_direction direction)
10045 {
10046 return __pa(cpu_addr);
10047 }
10048
10049 static void niu_phys_unmap_single(struct device *dev, u64 dma_address,
10050 size_t size,
10051 enum dma_data_direction direction)
10052 {
10053 /* Nothing to do. */
10054 }
10055
10056 static const struct niu_ops niu_phys_ops = {
10057 .alloc_coherent = niu_phys_alloc_coherent,
10058 .free_coherent = niu_phys_free_coherent,
10059 .map_page = niu_phys_map_page,
10060 .unmap_page = niu_phys_unmap_page,
10061 .map_single = niu_phys_map_single,
10062 .unmap_single = niu_phys_unmap_single,
10063 };
10064
10065 static int __devinit niu_of_probe(struct platform_device *op)
10066 {
10067 union niu_parent_id parent_id;
10068 struct net_device *dev;
10069 struct niu *np;
10070 const u32 *reg;
10071 int err;
10072
10073 niu_driver_version();
10074
10075 reg = of_get_property(op->dev.of_node, "reg", NULL);
10076 if (!reg) {
10077 dev_err(&op->dev, "%s: No 'reg' property, aborting\n",
10078 op->dev.of_node->full_name);
10079 return -ENODEV;
10080 }
10081
10082 dev = niu_alloc_and_init(&op->dev, NULL, op,
10083 &niu_phys_ops, reg[0] & 0x1);
10084 if (!dev) {
10085 err = -ENOMEM;
10086 goto err_out;
10087 }
10088 np = netdev_priv(dev);
10089
10090 memset(&parent_id, 0, sizeof(parent_id));
10091 parent_id.of = of_get_parent(op->dev.of_node);
10092
10093 np->parent = niu_get_parent(np, &parent_id,
10094 PLAT_TYPE_NIU);
10095 if (!np->parent) {
10096 err = -ENOMEM;
10097 goto err_out_free_dev;
10098 }
10099
10100 niu_set_basic_features(dev);
10101
10102 np->regs = of_ioremap(&op->resource[1], 0,
10103 resource_size(&op->resource[1]),
10104 "niu regs");
10105 if (!np->regs) {
10106 dev_err(&op->dev, "Cannot map device registers, aborting\n");
10107 err = -ENOMEM;
10108 goto err_out_release_parent;
10109 }
10110
10111 np->vir_regs_1 = of_ioremap(&op->resource[2], 0,
10112 resource_size(&op->resource[2]),
10113 "niu vregs-1");
10114 if (!np->vir_regs_1) {
10115 dev_err(&op->dev, "Cannot map device vir registers 1, aborting\n");
10116 err = -ENOMEM;
10117 goto err_out_iounmap;
10118 }
10119
10120 np->vir_regs_2 = of_ioremap(&op->resource[3], 0,
10121 resource_size(&op->resource[3]),
10122 "niu vregs-2");
10123 if (!np->vir_regs_2) {
10124 dev_err(&op->dev, "Cannot map device vir registers 2, aborting\n");
10125 err = -ENOMEM;
10126 goto err_out_iounmap;
10127 }
10128
10129 niu_assign_netdev_ops(dev);
10130
10131 err = niu_get_invariants(np);
10132 if (err) {
10133 if (err != -ENODEV)
10134 dev_err(&op->dev, "Problem fetching invariants of chip, aborting\n");
10135 goto err_out_iounmap;
10136 }
10137
10138 err = register_netdev(dev);
10139 if (err) {
10140 dev_err(&op->dev, "Cannot register net device, aborting\n");
10141 goto err_out_iounmap;
10142 }
10143
10144 dev_set_drvdata(&op->dev, dev);
10145
10146 niu_device_announce(np);
10147
10148 return 0;
10149
10150 err_out_iounmap:
10151 if (np->vir_regs_1) {
10152 of_iounmap(&op->resource[2], np->vir_regs_1,
10153 resource_size(&op->resource[2]));
10154 np->vir_regs_1 = NULL;
10155 }
10156
10157 if (np->vir_regs_2) {
10158 of_iounmap(&op->resource[3], np->vir_regs_2,
10159 resource_size(&op->resource[3]));
10160 np->vir_regs_2 = NULL;
10161 }
10162
10163 if (np->regs) {
10164 of_iounmap(&op->resource[1], np->regs,
10165 resource_size(&op->resource[1]));
10166 np->regs = NULL;
10167 }
10168
10169 err_out_release_parent:
10170 niu_put_parent(np);
10171
10172 err_out_free_dev:
10173 free_netdev(dev);
10174
10175 err_out:
10176 return err;
10177 }
10178
10179 static int __devexit niu_of_remove(struct platform_device *op)
10180 {
10181 struct net_device *dev = dev_get_drvdata(&op->dev);
10182
10183 if (dev) {
10184 struct niu *np = netdev_priv(dev);
10185
10186 unregister_netdev(dev);
10187
10188 if (np->vir_regs_1) {
10189 of_iounmap(&op->resource[2], np->vir_regs_1,
10190 resource_size(&op->resource[2]));
10191 np->vir_regs_1 = NULL;
10192 }
10193
10194 if (np->vir_regs_2) {
10195 of_iounmap(&op->resource[3], np->vir_regs_2,
10196 resource_size(&op->resource[3]));
10197 np->vir_regs_2 = NULL;
10198 }
10199
10200 if (np->regs) {
10201 of_iounmap(&op->resource[1], np->regs,
10202 resource_size(&op->resource[1]));
10203 np->regs = NULL;
10204 }
10205
10206 niu_ldg_free(np);
10207
10208 niu_put_parent(np);
10209
10210 free_netdev(dev);
10211 dev_set_drvdata(&op->dev, NULL);
10212 }
10213 return 0;
10214 }
10215
10216 static const struct of_device_id niu_match[] = {
10217 {
10218 .name = "network",
10219 .compatible = "SUNW,niusl",
10220 },
10221 {},
10222 };
10223 MODULE_DEVICE_TABLE(of, niu_match);
10224
10225 static struct platform_driver niu_of_driver = {
10226 .driver = {
10227 .name = "niu",
10228 .owner = THIS_MODULE,
10229 .of_match_table = niu_match,
10230 },
10231 .probe = niu_of_probe,
10232 .remove = __devexit_p(niu_of_remove),
10233 };
10234
10235 #endif /* CONFIG_SPARC64 */
10236
10237 static int __init niu_init(void)
10238 {
10239 int err = 0;
10240
10241 BUILD_BUG_ON(PAGE_SIZE < 4 * 1024);
10242
10243 niu_debug = netif_msg_init(debug, NIU_MSG_DEFAULT);
10244
10245 #ifdef CONFIG_SPARC64
10246 err = platform_driver_register(&niu_of_driver);
10247 #endif
10248
10249 if (!err) {
10250 err = pci_register_driver(&niu_pci_driver);
10251 #ifdef CONFIG_SPARC64
10252 if (err)
10253 platform_driver_unregister(&niu_of_driver);
10254 #endif
10255 }
10256
10257 return err;
10258 }
10259
10260 static void __exit niu_exit(void)
10261 {
10262 pci_unregister_driver(&niu_pci_driver);
10263 #ifdef CONFIG_SPARC64
10264 platform_driver_unregister(&niu_of_driver);
10265 #endif
10266 }
10267
10268 module_init(niu_init);
10269 module_exit(niu_exit);
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree