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a3138df9 DM |
1 | /* niu.c: Neptune ethernet driver. |
2 | * | |
be0c007a | 3 | * Copyright (C) 2007, 2008 David S. Miller (davem@davemloft.net) |
a3138df9 DM |
4 | */ |
5 | ||
6 | #include <linux/module.h> | |
7 | #include <linux/init.h> | |
8 | #include <linux/pci.h> | |
9 | #include <linux/dma-mapping.h> | |
10 | #include <linux/netdevice.h> | |
11 | #include <linux/ethtool.h> | |
12 | #include <linux/etherdevice.h> | |
13 | #include <linux/platform_device.h> | |
14 | #include <linux/delay.h> | |
15 | #include <linux/bitops.h> | |
16 | #include <linux/mii.h> | |
17 | #include <linux/if_ether.h> | |
18 | #include <linux/if_vlan.h> | |
19 | #include <linux/ip.h> | |
20 | #include <linux/in.h> | |
21 | #include <linux/ipv6.h> | |
22 | #include <linux/log2.h> | |
23 | #include <linux/jiffies.h> | |
24 | #include <linux/crc32.h> | |
25 | ||
26 | #include <linux/io.h> | |
27 | ||
28 | #ifdef CONFIG_SPARC64 | |
29 | #include <linux/of_device.h> | |
30 | #endif | |
31 | ||
32 | #include "niu.h" | |
33 | ||
34 | #define DRV_MODULE_NAME "niu" | |
35 | #define PFX DRV_MODULE_NAME ": " | |
be0c007a DM |
36 | #define DRV_MODULE_VERSION "0.9" |
37 | #define DRV_MODULE_RELDATE "May 4, 2008" | |
a3138df9 DM |
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 DMA_44BIT_MASK | |
48 | #define DMA_44BIT_MASK 0x00000fffffffffffULL | |
49 | #endif | |
50 | ||
51 | #ifndef readq | |
52 | static u64 readq(void __iomem *reg) | |
53 | { | |
e23a59e1 | 54 | return ((u64) readl(reg)) | (((u64) readl(reg + 4UL)) << 32); |
a3138df9 DM |
55 | } |
56 | ||
57 | static void writeq(u64 val, void __iomem *reg) | |
58 | { | |
59 | writel(val & 0xffffffff, reg); | |
60 | writel(val >> 32, reg + 0x4UL); | |
61 | } | |
62 | #endif | |
63 | ||
64 | static struct pci_device_id niu_pci_tbl[] = { | |
65 | {PCI_DEVICE(PCI_VENDOR_ID_SUN, 0xabcd)}, | |
66 | {} | |
67 | }; | |
68 | ||
69 | MODULE_DEVICE_TABLE(pci, niu_pci_tbl); | |
70 | ||
71 | #define NIU_TX_TIMEOUT (5 * HZ) | |
72 | ||
73 | #define nr64(reg) readq(np->regs + (reg)) | |
74 | #define nw64(reg, val) writeq((val), np->regs + (reg)) | |
75 | ||
76 | #define nr64_mac(reg) readq(np->mac_regs + (reg)) | |
77 | #define nw64_mac(reg, val) writeq((val), np->mac_regs + (reg)) | |
78 | ||
79 | #define nr64_ipp(reg) readq(np->regs + np->ipp_off + (reg)) | |
80 | #define nw64_ipp(reg, val) writeq((val), np->regs + np->ipp_off + (reg)) | |
81 | ||
82 | #define nr64_pcs(reg) readq(np->regs + np->pcs_off + (reg)) | |
83 | #define nw64_pcs(reg, val) writeq((val), np->regs + np->pcs_off + (reg)) | |
84 | ||
85 | #define nr64_xpcs(reg) readq(np->regs + np->xpcs_off + (reg)) | |
86 | #define nw64_xpcs(reg, val) writeq((val), np->regs + np->xpcs_off + (reg)) | |
87 | ||
88 | #define NIU_MSG_DEFAULT (NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_LINK) | |
89 | ||
90 | static int niu_debug; | |
91 | static int debug = -1; | |
92 | module_param(debug, int, 0); | |
93 | MODULE_PARM_DESC(debug, "NIU debug level"); | |
94 | ||
95 | #define niudbg(TYPE, f, a...) \ | |
96 | do { if ((np)->msg_enable & NETIF_MSG_##TYPE) \ | |
97 | printk(KERN_DEBUG PFX f, ## a); \ | |
98 | } while (0) | |
99 | ||
100 | #define niuinfo(TYPE, f, a...) \ | |
101 | do { if ((np)->msg_enable & NETIF_MSG_##TYPE) \ | |
102 | printk(KERN_INFO PFX f, ## a); \ | |
103 | } while (0) | |
104 | ||
105 | #define niuwarn(TYPE, f, a...) \ | |
106 | do { if ((np)->msg_enable & NETIF_MSG_##TYPE) \ | |
107 | printk(KERN_WARNING PFX f, ## a); \ | |
108 | } while (0) | |
109 | ||
110 | #define niu_lock_parent(np, flags) \ | |
111 | spin_lock_irqsave(&np->parent->lock, flags) | |
112 | #define niu_unlock_parent(np, flags) \ | |
113 | spin_unlock_irqrestore(&np->parent->lock, flags) | |
114 | ||
5fbd7e24 MW |
115 | static int serdes_init_10g_serdes(struct niu *np); |
116 | ||
a3138df9 DM |
117 | static int __niu_wait_bits_clear_mac(struct niu *np, unsigned long reg, |
118 | u64 bits, int limit, int delay) | |
119 | { | |
120 | while (--limit >= 0) { | |
121 | u64 val = nr64_mac(reg); | |
122 | ||
123 | if (!(val & bits)) | |
124 | break; | |
125 | udelay(delay); | |
126 | } | |
127 | if (limit < 0) | |
128 | return -ENODEV; | |
129 | return 0; | |
130 | } | |
131 | ||
132 | static int __niu_set_and_wait_clear_mac(struct niu *np, unsigned long reg, | |
133 | u64 bits, int limit, int delay, | |
134 | const char *reg_name) | |
135 | { | |
136 | int err; | |
137 | ||
138 | nw64_mac(reg, bits); | |
139 | err = __niu_wait_bits_clear_mac(np, reg, bits, limit, delay); | |
140 | if (err) | |
141 | dev_err(np->device, PFX "%s: bits (%llx) of register %s " | |
142 | "would not clear, val[%llx]\n", | |
143 | np->dev->name, (unsigned long long) bits, reg_name, | |
144 | (unsigned long long) nr64_mac(reg)); | |
145 | return err; | |
146 | } | |
147 | ||
148 | #define niu_set_and_wait_clear_mac(NP, REG, BITS, LIMIT, DELAY, REG_NAME) \ | |
149 | ({ BUILD_BUG_ON(LIMIT <= 0 || DELAY < 0); \ | |
150 | __niu_set_and_wait_clear_mac(NP, REG, BITS, LIMIT, DELAY, REG_NAME); \ | |
151 | }) | |
152 | ||
153 | static int __niu_wait_bits_clear_ipp(struct niu *np, unsigned long reg, | |
154 | u64 bits, int limit, int delay) | |
155 | { | |
156 | while (--limit >= 0) { | |
157 | u64 val = nr64_ipp(reg); | |
158 | ||
159 | if (!(val & bits)) | |
160 | break; | |
161 | udelay(delay); | |
162 | } | |
163 | if (limit < 0) | |
164 | return -ENODEV; | |
165 | return 0; | |
166 | } | |
167 | ||
168 | static int __niu_set_and_wait_clear_ipp(struct niu *np, unsigned long reg, | |
169 | u64 bits, int limit, int delay, | |
170 | const char *reg_name) | |
171 | { | |
172 | int err; | |
173 | u64 val; | |
174 | ||
175 | val = nr64_ipp(reg); | |
176 | val |= bits; | |
177 | nw64_ipp(reg, val); | |
178 | ||
179 | err = __niu_wait_bits_clear_ipp(np, reg, bits, limit, delay); | |
180 | if (err) | |
181 | dev_err(np->device, PFX "%s: bits (%llx) of register %s " | |
182 | "would not clear, val[%llx]\n", | |
183 | np->dev->name, (unsigned long long) bits, reg_name, | |
184 | (unsigned long long) nr64_ipp(reg)); | |
185 | return err; | |
186 | } | |
187 | ||
188 | #define niu_set_and_wait_clear_ipp(NP, REG, BITS, LIMIT, DELAY, REG_NAME) \ | |
189 | ({ BUILD_BUG_ON(LIMIT <= 0 || DELAY < 0); \ | |
190 | __niu_set_and_wait_clear_ipp(NP, REG, BITS, LIMIT, DELAY, REG_NAME); \ | |
191 | }) | |
192 | ||
193 | static int __niu_wait_bits_clear(struct niu *np, unsigned long reg, | |
194 | u64 bits, int limit, int delay) | |
195 | { | |
196 | while (--limit >= 0) { | |
197 | u64 val = nr64(reg); | |
198 | ||
199 | if (!(val & bits)) | |
200 | break; | |
201 | udelay(delay); | |
202 | } | |
203 | if (limit < 0) | |
204 | return -ENODEV; | |
205 | return 0; | |
206 | } | |
207 | ||
208 | #define niu_wait_bits_clear(NP, REG, BITS, LIMIT, DELAY) \ | |
209 | ({ BUILD_BUG_ON(LIMIT <= 0 || DELAY < 0); \ | |
210 | __niu_wait_bits_clear(NP, REG, BITS, LIMIT, DELAY); \ | |
211 | }) | |
212 | ||
213 | static int __niu_set_and_wait_clear(struct niu *np, unsigned long reg, | |
214 | u64 bits, int limit, int delay, | |
215 | const char *reg_name) | |
216 | { | |
217 | int err; | |
218 | ||
219 | nw64(reg, bits); | |
220 | err = __niu_wait_bits_clear(np, reg, bits, limit, delay); | |
221 | if (err) | |
222 | dev_err(np->device, PFX "%s: bits (%llx) of register %s " | |
223 | "would not clear, val[%llx]\n", | |
224 | np->dev->name, (unsigned long long) bits, reg_name, | |
225 | (unsigned long long) nr64(reg)); | |
226 | return err; | |
227 | } | |
228 | ||
229 | #define niu_set_and_wait_clear(NP, REG, BITS, LIMIT, DELAY, REG_NAME) \ | |
230 | ({ BUILD_BUG_ON(LIMIT <= 0 || DELAY < 0); \ | |
231 | __niu_set_and_wait_clear(NP, REG, BITS, LIMIT, DELAY, REG_NAME); \ | |
232 | }) | |
233 | ||
234 | static void niu_ldg_rearm(struct niu *np, struct niu_ldg *lp, int on) | |
235 | { | |
236 | u64 val = (u64) lp->timer; | |
237 | ||
238 | if (on) | |
239 | val |= LDG_IMGMT_ARM; | |
240 | ||
241 | nw64(LDG_IMGMT(lp->ldg_num), val); | |
242 | } | |
243 | ||
244 | static int niu_ldn_irq_enable(struct niu *np, int ldn, int on) | |
245 | { | |
246 | unsigned long mask_reg, bits; | |
247 | u64 val; | |
248 | ||
249 | if (ldn < 0 || ldn > LDN_MAX) | |
250 | return -EINVAL; | |
251 | ||
252 | if (ldn < 64) { | |
253 | mask_reg = LD_IM0(ldn); | |
254 | bits = LD_IM0_MASK; | |
255 | } else { | |
256 | mask_reg = LD_IM1(ldn - 64); | |
257 | bits = LD_IM1_MASK; | |
258 | } | |
259 | ||
260 | val = nr64(mask_reg); | |
261 | if (on) | |
262 | val &= ~bits; | |
263 | else | |
264 | val |= bits; | |
265 | nw64(mask_reg, val); | |
266 | ||
267 | return 0; | |
268 | } | |
269 | ||
270 | static int niu_enable_ldn_in_ldg(struct niu *np, struct niu_ldg *lp, int on) | |
271 | { | |
272 | struct niu_parent *parent = np->parent; | |
273 | int i; | |
274 | ||
275 | for (i = 0; i <= LDN_MAX; i++) { | |
276 | int err; | |
277 | ||
278 | if (parent->ldg_map[i] != lp->ldg_num) | |
279 | continue; | |
280 | ||
281 | err = niu_ldn_irq_enable(np, i, on); | |
282 | if (err) | |
283 | return err; | |
284 | } | |
285 | return 0; | |
286 | } | |
287 | ||
288 | static int niu_enable_interrupts(struct niu *np, int on) | |
289 | { | |
290 | int i; | |
291 | ||
292 | for (i = 0; i < np->num_ldg; i++) { | |
293 | struct niu_ldg *lp = &np->ldg[i]; | |
294 | int err; | |
295 | ||
296 | err = niu_enable_ldn_in_ldg(np, lp, on); | |
297 | if (err) | |
298 | return err; | |
299 | } | |
300 | for (i = 0; i < np->num_ldg; i++) | |
301 | niu_ldg_rearm(np, &np->ldg[i], on); | |
302 | ||
303 | return 0; | |
304 | } | |
305 | ||
306 | static u32 phy_encode(u32 type, int port) | |
307 | { | |
308 | return (type << (port * 2)); | |
309 | } | |
310 | ||
311 | static u32 phy_decode(u32 val, int port) | |
312 | { | |
313 | return (val >> (port * 2)) & PORT_TYPE_MASK; | |
314 | } | |
315 | ||
316 | static int mdio_wait(struct niu *np) | |
317 | { | |
318 | int limit = 1000; | |
319 | u64 val; | |
320 | ||
321 | while (--limit > 0) { | |
322 | val = nr64(MIF_FRAME_OUTPUT); | |
323 | if ((val >> MIF_FRAME_OUTPUT_TA_SHIFT) & 0x1) | |
324 | return val & MIF_FRAME_OUTPUT_DATA; | |
325 | ||
326 | udelay(10); | |
327 | } | |
328 | ||
329 | return -ENODEV; | |
330 | } | |
331 | ||
332 | static int mdio_read(struct niu *np, int port, int dev, int reg) | |
333 | { | |
334 | int err; | |
335 | ||
336 | nw64(MIF_FRAME_OUTPUT, MDIO_ADDR_OP(port, dev, reg)); | |
337 | err = mdio_wait(np); | |
338 | if (err < 0) | |
339 | return err; | |
340 | ||
341 | nw64(MIF_FRAME_OUTPUT, MDIO_READ_OP(port, dev)); | |
342 | return mdio_wait(np); | |
343 | } | |
344 | ||
345 | static int mdio_write(struct niu *np, int port, int dev, int reg, int data) | |
346 | { | |
347 | int err; | |
348 | ||
349 | nw64(MIF_FRAME_OUTPUT, MDIO_ADDR_OP(port, dev, reg)); | |
350 | err = mdio_wait(np); | |
351 | if (err < 0) | |
352 | return err; | |
353 | ||
354 | nw64(MIF_FRAME_OUTPUT, MDIO_WRITE_OP(port, dev, data)); | |
355 | err = mdio_wait(np); | |
356 | if (err < 0) | |
357 | return err; | |
358 | ||
359 | return 0; | |
360 | } | |
361 | ||
362 | static int mii_read(struct niu *np, int port, int reg) | |
363 | { | |
364 | nw64(MIF_FRAME_OUTPUT, MII_READ_OP(port, reg)); | |
365 | return mdio_wait(np); | |
366 | } | |
367 | ||
368 | static int mii_write(struct niu *np, int port, int reg, int data) | |
369 | { | |
370 | int err; | |
371 | ||
372 | nw64(MIF_FRAME_OUTPUT, MII_WRITE_OP(port, reg, data)); | |
373 | err = mdio_wait(np); | |
374 | if (err < 0) | |
375 | return err; | |
376 | ||
377 | return 0; | |
378 | } | |
379 | ||
380 | static int esr2_set_tx_cfg(struct niu *np, unsigned long channel, u32 val) | |
381 | { | |
382 | int err; | |
383 | ||
384 | err = mdio_write(np, np->port, NIU_ESR2_DEV_ADDR, | |
385 | ESR2_TI_PLL_TX_CFG_L(channel), | |
386 | val & 0xffff); | |
387 | if (!err) | |
388 | err = mdio_write(np, np->port, NIU_ESR2_DEV_ADDR, | |
389 | ESR2_TI_PLL_TX_CFG_H(channel), | |
390 | val >> 16); | |
391 | return err; | |
392 | } | |
393 | ||
394 | static int esr2_set_rx_cfg(struct niu *np, unsigned long channel, u32 val) | |
395 | { | |
396 | int err; | |
397 | ||
398 | err = mdio_write(np, np->port, NIU_ESR2_DEV_ADDR, | |
399 | ESR2_TI_PLL_RX_CFG_L(channel), | |
400 | val & 0xffff); | |
401 | if (!err) | |
402 | err = mdio_write(np, np->port, NIU_ESR2_DEV_ADDR, | |
403 | ESR2_TI_PLL_RX_CFG_H(channel), | |
404 | val >> 16); | |
405 | return err; | |
406 | } | |
407 | ||
408 | /* Mode is always 10G fiber. */ | |
e3e081e1 | 409 | static int serdes_init_niu_10g_fiber(struct niu *np) |
a3138df9 DM |
410 | { |
411 | struct niu_link_config *lp = &np->link_config; | |
412 | u32 tx_cfg, rx_cfg; | |
413 | unsigned long i; | |
414 | ||
415 | tx_cfg = (PLL_TX_CFG_ENTX | PLL_TX_CFG_SWING_1375MV); | |
416 | rx_cfg = (PLL_RX_CFG_ENRX | PLL_RX_CFG_TERM_0P8VDDT | | |
417 | PLL_RX_CFG_ALIGN_ENA | PLL_RX_CFG_LOS_LTHRESH | | |
418 | PLL_RX_CFG_EQ_LP_ADAPTIVE); | |
419 | ||
420 | if (lp->loopback_mode == LOOPBACK_PHY) { | |
421 | u16 test_cfg = PLL_TEST_CFG_LOOPBACK_CML_DIS; | |
422 | ||
423 | mdio_write(np, np->port, NIU_ESR2_DEV_ADDR, | |
424 | ESR2_TI_PLL_TEST_CFG_L, test_cfg); | |
425 | ||
426 | tx_cfg |= PLL_TX_CFG_ENTEST; | |
427 | rx_cfg |= PLL_RX_CFG_ENTEST; | |
428 | } | |
429 | ||
430 | /* Initialize all 4 lanes of the SERDES. */ | |
431 | for (i = 0; i < 4; i++) { | |
432 | int err = esr2_set_tx_cfg(np, i, tx_cfg); | |
433 | if (err) | |
434 | return err; | |
435 | } | |
436 | ||
437 | for (i = 0; i < 4; i++) { | |
438 | int err = esr2_set_rx_cfg(np, i, rx_cfg); | |
439 | if (err) | |
440 | return err; | |
441 | } | |
442 | ||
443 | return 0; | |
444 | } | |
445 | ||
e3e081e1 SB |
446 | static int serdes_init_niu_1g_serdes(struct niu *np) |
447 | { | |
448 | struct niu_link_config *lp = &np->link_config; | |
449 | u16 pll_cfg, pll_sts; | |
450 | int max_retry = 100; | |
451 | u64 sig, mask, val; | |
452 | u32 tx_cfg, rx_cfg; | |
453 | unsigned long i; | |
454 | int err; | |
455 | ||
456 | tx_cfg = (PLL_TX_CFG_ENTX | PLL_TX_CFG_SWING_1375MV | | |
457 | PLL_TX_CFG_RATE_HALF); | |
458 | rx_cfg = (PLL_RX_CFG_ENRX | PLL_RX_CFG_TERM_0P8VDDT | | |
459 | PLL_RX_CFG_ALIGN_ENA | PLL_RX_CFG_LOS_LTHRESH | | |
460 | PLL_RX_CFG_RATE_HALF); | |
461 | ||
462 | if (np->port == 0) | |
463 | rx_cfg |= PLL_RX_CFG_EQ_LP_ADAPTIVE; | |
464 | ||
465 | if (lp->loopback_mode == LOOPBACK_PHY) { | |
466 | u16 test_cfg = PLL_TEST_CFG_LOOPBACK_CML_DIS; | |
467 | ||
468 | mdio_write(np, np->port, NIU_ESR2_DEV_ADDR, | |
469 | ESR2_TI_PLL_TEST_CFG_L, test_cfg); | |
470 | ||
471 | tx_cfg |= PLL_TX_CFG_ENTEST; | |
472 | rx_cfg |= PLL_RX_CFG_ENTEST; | |
473 | } | |
474 | ||
475 | /* Initialize PLL for 1G */ | |
476 | pll_cfg = (PLL_CFG_ENPLL | PLL_CFG_MPY_8X); | |
477 | ||
478 | err = mdio_write(np, np->port, NIU_ESR2_DEV_ADDR, | |
479 | ESR2_TI_PLL_CFG_L, pll_cfg); | |
480 | if (err) { | |
481 | dev_err(np->device, PFX "NIU Port %d " | |
482 | "serdes_init_niu_1g_serdes: " | |
483 | "mdio write to ESR2_TI_PLL_CFG_L failed", np->port); | |
484 | return err; | |
485 | } | |
486 | ||
487 | pll_sts = PLL_CFG_ENPLL; | |
488 | ||
489 | err = mdio_write(np, np->port, NIU_ESR2_DEV_ADDR, | |
490 | ESR2_TI_PLL_STS_L, pll_sts); | |
491 | if (err) { | |
492 | dev_err(np->device, PFX "NIU Port %d " | |
493 | "serdes_init_niu_1g_serdes: " | |
494 | "mdio write to ESR2_TI_PLL_STS_L failed", np->port); | |
495 | return err; | |
496 | } | |
497 | ||
498 | udelay(200); | |
499 | ||
500 | /* Initialize all 4 lanes of the SERDES. */ | |
501 | for (i = 0; i < 4; i++) { | |
502 | err = esr2_set_tx_cfg(np, i, tx_cfg); | |
503 | if (err) | |
504 | return err; | |
505 | } | |
506 | ||
507 | for (i = 0; i < 4; i++) { | |
508 | err = esr2_set_rx_cfg(np, i, rx_cfg); | |
509 | if (err) | |
510 | return err; | |
511 | } | |
512 | ||
513 | switch (np->port) { | |
514 | case 0: | |
515 | val = (ESR_INT_SRDY0_P0 | ESR_INT_DET0_P0); | |
516 | mask = val; | |
517 | break; | |
518 | ||
519 | case 1: | |
520 | val = (ESR_INT_SRDY0_P1 | ESR_INT_DET0_P1); | |
521 | mask = val; | |
522 | break; | |
523 | ||
524 | default: | |
525 | return -EINVAL; | |
526 | } | |
527 | ||
528 | while (max_retry--) { | |
529 | sig = nr64(ESR_INT_SIGNALS); | |
530 | if ((sig & mask) == val) | |
531 | break; | |
532 | ||
533 | mdelay(500); | |
534 | } | |
535 | ||
536 | if ((sig & mask) != val) { | |
537 | dev_err(np->device, PFX "Port %u signal bits [%08x] are not " | |
538 | "[%08x]\n", np->port, (int) (sig & mask), (int) val); | |
539 | return -ENODEV; | |
540 | } | |
541 | ||
542 | return 0; | |
543 | } | |
544 | ||
545 | static int serdes_init_niu_10g_serdes(struct niu *np) | |
546 | { | |
547 | struct niu_link_config *lp = &np->link_config; | |
548 | u32 tx_cfg, rx_cfg, pll_cfg, pll_sts; | |
549 | int max_retry = 100; | |
550 | u64 sig, mask, val; | |
551 | unsigned long i; | |
552 | int err; | |
553 | ||
554 | tx_cfg = (PLL_TX_CFG_ENTX | PLL_TX_CFG_SWING_1375MV); | |
555 | rx_cfg = (PLL_RX_CFG_ENRX | PLL_RX_CFG_TERM_0P8VDDT | | |
556 | PLL_RX_CFG_ALIGN_ENA | PLL_RX_CFG_LOS_LTHRESH | | |
557 | PLL_RX_CFG_EQ_LP_ADAPTIVE); | |
558 | ||
559 | if (lp->loopback_mode == LOOPBACK_PHY) { | |
560 | u16 test_cfg = PLL_TEST_CFG_LOOPBACK_CML_DIS; | |
561 | ||
562 | mdio_write(np, np->port, NIU_ESR2_DEV_ADDR, | |
563 | ESR2_TI_PLL_TEST_CFG_L, test_cfg); | |
564 | ||
565 | tx_cfg |= PLL_TX_CFG_ENTEST; | |
566 | rx_cfg |= PLL_RX_CFG_ENTEST; | |
567 | } | |
568 | ||
569 | /* Initialize PLL for 10G */ | |
570 | pll_cfg = (PLL_CFG_ENPLL | PLL_CFG_MPY_10X); | |
571 | ||
572 | err = mdio_write(np, np->port, NIU_ESR2_DEV_ADDR, | |
573 | ESR2_TI_PLL_CFG_L, pll_cfg & 0xffff); | |
574 | if (err) { | |
575 | dev_err(np->device, PFX "NIU Port %d " | |
576 | "serdes_init_niu_10g_serdes: " | |
577 | "mdio write to ESR2_TI_PLL_CFG_L failed", np->port); | |
578 | return err; | |
579 | } | |
580 | ||
581 | pll_sts = PLL_CFG_ENPLL; | |
582 | ||
583 | err = mdio_write(np, np->port, NIU_ESR2_DEV_ADDR, | |
584 | ESR2_TI_PLL_STS_L, pll_sts & 0xffff); | |
585 | if (err) { | |
586 | dev_err(np->device, PFX "NIU Port %d " | |
587 | "serdes_init_niu_10g_serdes: " | |
588 | "mdio write to ESR2_TI_PLL_STS_L failed", np->port); | |
589 | return err; | |
590 | } | |
591 | ||
592 | udelay(200); | |
593 | ||
594 | /* Initialize all 4 lanes of the SERDES. */ | |
595 | for (i = 0; i < 4; i++) { | |
596 | err = esr2_set_tx_cfg(np, i, tx_cfg); | |
597 | if (err) | |
598 | return err; | |
599 | } | |
600 | ||
601 | for (i = 0; i < 4; i++) { | |
602 | err = esr2_set_rx_cfg(np, i, rx_cfg); | |
603 | if (err) | |
604 | return err; | |
605 | } | |
606 | ||
607 | /* check if serdes is ready */ | |
608 | ||
609 | switch (np->port) { | |
610 | case 0: | |
611 | mask = ESR_INT_SIGNALS_P0_BITS; | |
612 | val = (ESR_INT_SRDY0_P0 | | |
613 | ESR_INT_DET0_P0 | | |
614 | ESR_INT_XSRDY_P0 | | |
615 | ESR_INT_XDP_P0_CH3 | | |
616 | ESR_INT_XDP_P0_CH2 | | |
617 | ESR_INT_XDP_P0_CH1 | | |
618 | ESR_INT_XDP_P0_CH0); | |
619 | break; | |
620 | ||
621 | case 1: | |
622 | mask = ESR_INT_SIGNALS_P1_BITS; | |
623 | val = (ESR_INT_SRDY0_P1 | | |
624 | ESR_INT_DET0_P1 | | |
625 | ESR_INT_XSRDY_P1 | | |
626 | ESR_INT_XDP_P1_CH3 | | |
627 | ESR_INT_XDP_P1_CH2 | | |
628 | ESR_INT_XDP_P1_CH1 | | |
629 | ESR_INT_XDP_P1_CH0); | |
630 | break; | |
631 | ||
632 | default: | |
633 | return -EINVAL; | |
634 | } | |
635 | ||
636 | while (max_retry--) { | |
637 | sig = nr64(ESR_INT_SIGNALS); | |
638 | if ((sig & mask) == val) | |
639 | break; | |
640 | ||
641 | mdelay(500); | |
642 | } | |
643 | ||
644 | if ((sig & mask) != val) { | |
645 | pr_info(PFX "NIU Port %u signal bits [%08x] are not " | |
646 | "[%08x] for 10G...trying 1G\n", | |
647 | np->port, (int) (sig & mask), (int) val); | |
648 | ||
649 | /* 10G failed, try initializing at 1G */ | |
650 | err = serdes_init_niu_1g_serdes(np); | |
651 | if (!err) { | |
652 | np->flags &= ~NIU_FLAGS_10G; | |
653 | np->mac_xcvr = MAC_XCVR_PCS; | |
654 | } else { | |
655 | dev_err(np->device, PFX "Port %u 10G/1G SERDES " | |
656 | "Link Failed \n", np->port); | |
657 | return -ENODEV; | |
658 | } | |
659 | } | |
660 | return 0; | |
661 | } | |
662 | ||
a3138df9 DM |
663 | static int esr_read_rxtx_ctrl(struct niu *np, unsigned long chan, u32 *val) |
664 | { | |
665 | int err; | |
666 | ||
667 | err = mdio_read(np, np->port, NIU_ESR_DEV_ADDR, ESR_RXTX_CTRL_L(chan)); | |
668 | if (err >= 0) { | |
669 | *val = (err & 0xffff); | |
670 | err = mdio_read(np, np->port, NIU_ESR_DEV_ADDR, | |
671 | ESR_RXTX_CTRL_H(chan)); | |
672 | if (err >= 0) | |
673 | *val |= ((err & 0xffff) << 16); | |
674 | err = 0; | |
675 | } | |
676 | return err; | |
677 | } | |
678 | ||
679 | static int esr_read_glue0(struct niu *np, unsigned long chan, u32 *val) | |
680 | { | |
681 | int err; | |
682 | ||
683 | err = mdio_read(np, np->port, NIU_ESR_DEV_ADDR, | |
684 | ESR_GLUE_CTRL0_L(chan)); | |
685 | if (err >= 0) { | |
686 | *val = (err & 0xffff); | |
687 | err = mdio_read(np, np->port, NIU_ESR_DEV_ADDR, | |
688 | ESR_GLUE_CTRL0_H(chan)); | |
689 | if (err >= 0) { | |
690 | *val |= ((err & 0xffff) << 16); | |
691 | err = 0; | |
692 | } | |
693 | } | |
694 | return err; | |
695 | } | |
696 | ||
697 | static int esr_read_reset(struct niu *np, u32 *val) | |
698 | { | |
699 | int err; | |
700 | ||
701 | err = mdio_read(np, np->port, NIU_ESR_DEV_ADDR, | |
702 | ESR_RXTX_RESET_CTRL_L); | |
703 | if (err >= 0) { | |
704 | *val = (err & 0xffff); | |
705 | err = mdio_read(np, np->port, NIU_ESR_DEV_ADDR, | |
706 | ESR_RXTX_RESET_CTRL_H); | |
707 | if (err >= 0) { | |
708 | *val |= ((err & 0xffff) << 16); | |
709 | err = 0; | |
710 | } | |
711 | } | |
712 | return err; | |
713 | } | |
714 | ||
715 | static int esr_write_rxtx_ctrl(struct niu *np, unsigned long chan, u32 val) | |
716 | { | |
717 | int err; | |
718 | ||
719 | err = mdio_write(np, np->port, NIU_ESR_DEV_ADDR, | |
720 | ESR_RXTX_CTRL_L(chan), val & 0xffff); | |
721 | if (!err) | |
722 | err = mdio_write(np, np->port, NIU_ESR_DEV_ADDR, | |
723 | ESR_RXTX_CTRL_H(chan), (val >> 16)); | |
724 | return err; | |
725 | } | |
726 | ||
727 | static int esr_write_glue0(struct niu *np, unsigned long chan, u32 val) | |
728 | { | |
729 | int err; | |
730 | ||
731 | err = mdio_write(np, np->port, NIU_ESR_DEV_ADDR, | |
732 | ESR_GLUE_CTRL0_L(chan), val & 0xffff); | |
733 | if (!err) | |
734 | err = mdio_write(np, np->port, NIU_ESR_DEV_ADDR, | |
735 | ESR_GLUE_CTRL0_H(chan), (val >> 16)); | |
736 | return err; | |
737 | } | |
738 | ||
739 | static int esr_reset(struct niu *np) | |
740 | { | |
741 | u32 reset; | |
742 | int err; | |
743 | ||
744 | err = mdio_write(np, np->port, NIU_ESR_DEV_ADDR, | |
745 | ESR_RXTX_RESET_CTRL_L, 0x0000); | |
746 | if (err) | |
747 | return err; | |
748 | err = mdio_write(np, np->port, NIU_ESR_DEV_ADDR, | |
749 | ESR_RXTX_RESET_CTRL_H, 0xffff); | |
750 | if (err) | |
751 | return err; | |
752 | udelay(200); | |
753 | ||
754 | err = mdio_write(np, np->port, NIU_ESR_DEV_ADDR, | |
755 | ESR_RXTX_RESET_CTRL_L, 0xffff); | |
756 | if (err) | |
757 | return err; | |
758 | udelay(200); | |
759 | ||
760 | err = mdio_write(np, np->port, NIU_ESR_DEV_ADDR, | |
761 | ESR_RXTX_RESET_CTRL_H, 0x0000); | |
762 | if (err) | |
763 | return err; | |
764 | udelay(200); | |
765 | ||
766 | err = esr_read_reset(np, &reset); | |
767 | if (err) | |
768 | return err; | |
769 | if (reset != 0) { | |
770 | dev_err(np->device, PFX "Port %u ESR_RESET " | |
771 | "did not clear [%08x]\n", | |
772 | np->port, reset); | |
773 | return -ENODEV; | |
774 | } | |
775 | ||
776 | return 0; | |
777 | } | |
778 | ||
779 | static int serdes_init_10g(struct niu *np) | |
780 | { | |
781 | struct niu_link_config *lp = &np->link_config; | |
782 | unsigned long ctrl_reg, test_cfg_reg, i; | |
783 | u64 ctrl_val, test_cfg_val, sig, mask, val; | |
784 | int err; | |
785 | ||
786 | switch (np->port) { | |
787 | case 0: | |
788 | ctrl_reg = ENET_SERDES_0_CTRL_CFG; | |
789 | test_cfg_reg = ENET_SERDES_0_TEST_CFG; | |
790 | break; | |
791 | case 1: | |
792 | ctrl_reg = ENET_SERDES_1_CTRL_CFG; | |
793 | test_cfg_reg = ENET_SERDES_1_TEST_CFG; | |
794 | break; | |
795 | ||
796 | default: | |
797 | return -EINVAL; | |
798 | } | |
799 | ctrl_val = (ENET_SERDES_CTRL_SDET_0 | | |
800 | ENET_SERDES_CTRL_SDET_1 | | |
801 | ENET_SERDES_CTRL_SDET_2 | | |
802 | ENET_SERDES_CTRL_SDET_3 | | |
803 | (0x5 << ENET_SERDES_CTRL_EMPH_0_SHIFT) | | |
804 | (0x5 << ENET_SERDES_CTRL_EMPH_1_SHIFT) | | |
805 | (0x5 << ENET_SERDES_CTRL_EMPH_2_SHIFT) | | |
806 | (0x5 << ENET_SERDES_CTRL_EMPH_3_SHIFT) | | |
807 | (0x1 << ENET_SERDES_CTRL_LADJ_0_SHIFT) | | |
808 | (0x1 << ENET_SERDES_CTRL_LADJ_1_SHIFT) | | |
809 | (0x1 << ENET_SERDES_CTRL_LADJ_2_SHIFT) | | |
810 | (0x1 << ENET_SERDES_CTRL_LADJ_3_SHIFT)); | |
811 | test_cfg_val = 0; | |
812 | ||
813 | if (lp->loopback_mode == LOOPBACK_PHY) { | |
814 | test_cfg_val |= ((ENET_TEST_MD_PAD_LOOPBACK << | |
815 | ENET_SERDES_TEST_MD_0_SHIFT) | | |
816 | (ENET_TEST_MD_PAD_LOOPBACK << | |
817 | ENET_SERDES_TEST_MD_1_SHIFT) | | |
818 | (ENET_TEST_MD_PAD_LOOPBACK << | |
819 | ENET_SERDES_TEST_MD_2_SHIFT) | | |
820 | (ENET_TEST_MD_PAD_LOOPBACK << | |
821 | ENET_SERDES_TEST_MD_3_SHIFT)); | |
822 | } | |
823 | ||
824 | nw64(ctrl_reg, ctrl_val); | |
825 | nw64(test_cfg_reg, test_cfg_val); | |
826 | ||
827 | /* Initialize all 4 lanes of the SERDES. */ | |
828 | for (i = 0; i < 4; i++) { | |
829 | u32 rxtx_ctrl, glue0; | |
830 | ||
831 | err = esr_read_rxtx_ctrl(np, i, &rxtx_ctrl); | |
832 | if (err) | |
833 | return err; | |
834 | err = esr_read_glue0(np, i, &glue0); | |
835 | if (err) | |
836 | return err; | |
837 | ||
838 | rxtx_ctrl &= ~(ESR_RXTX_CTRL_VMUXLO); | |
839 | rxtx_ctrl |= (ESR_RXTX_CTRL_ENSTRETCH | | |
840 | (2 << ESR_RXTX_CTRL_VMUXLO_SHIFT)); | |
841 | ||
842 | glue0 &= ~(ESR_GLUE_CTRL0_SRATE | | |
843 | ESR_GLUE_CTRL0_THCNT | | |
844 | ESR_GLUE_CTRL0_BLTIME); | |
845 | glue0 |= (ESR_GLUE_CTRL0_RXLOSENAB | | |
846 | (0xf << ESR_GLUE_CTRL0_SRATE_SHIFT) | | |
847 | (0xff << ESR_GLUE_CTRL0_THCNT_SHIFT) | | |
848 | (BLTIME_300_CYCLES << | |
849 | ESR_GLUE_CTRL0_BLTIME_SHIFT)); | |
850 | ||
851 | err = esr_write_rxtx_ctrl(np, i, rxtx_ctrl); | |
852 | if (err) | |
853 | return err; | |
854 | err = esr_write_glue0(np, i, glue0); | |
855 | if (err) | |
856 | return err; | |
857 | } | |
858 | ||
859 | err = esr_reset(np); | |
860 | if (err) | |
861 | return err; | |
862 | ||
863 | sig = nr64(ESR_INT_SIGNALS); | |
864 | switch (np->port) { | |
865 | case 0: | |
866 | mask = ESR_INT_SIGNALS_P0_BITS; | |
867 | val = (ESR_INT_SRDY0_P0 | | |
868 | ESR_INT_DET0_P0 | | |
869 | ESR_INT_XSRDY_P0 | | |
870 | ESR_INT_XDP_P0_CH3 | | |
871 | ESR_INT_XDP_P0_CH2 | | |
872 | ESR_INT_XDP_P0_CH1 | | |
873 | ESR_INT_XDP_P0_CH0); | |
874 | break; | |
875 | ||
876 | case 1: | |
877 | mask = ESR_INT_SIGNALS_P1_BITS; | |
878 | val = (ESR_INT_SRDY0_P1 | | |
879 | ESR_INT_DET0_P1 | | |
880 | ESR_INT_XSRDY_P1 | | |
881 | ESR_INT_XDP_P1_CH3 | | |
882 | ESR_INT_XDP_P1_CH2 | | |
883 | ESR_INT_XDP_P1_CH1 | | |
884 | ESR_INT_XDP_P1_CH0); | |
885 | break; | |
886 | ||
887 | default: | |
888 | return -EINVAL; | |
889 | } | |
890 | ||
891 | if ((sig & mask) != val) { | |
a5d6ab56 MW |
892 | if (np->flags & NIU_FLAGS_HOTPLUG_PHY) { |
893 | np->flags &= ~NIU_FLAGS_HOTPLUG_PHY_PRESENT; | |
894 | return 0; | |
895 | } | |
a3138df9 DM |
896 | dev_err(np->device, PFX "Port %u signal bits [%08x] are not " |
897 | "[%08x]\n", np->port, (int) (sig & mask), (int) val); | |
898 | return -ENODEV; | |
899 | } | |
a5d6ab56 MW |
900 | if (np->flags & NIU_FLAGS_HOTPLUG_PHY) |
901 | np->flags |= NIU_FLAGS_HOTPLUG_PHY_PRESENT; | |
a3138df9 DM |
902 | return 0; |
903 | } | |
904 | ||
905 | static int serdes_init_1g(struct niu *np) | |
906 | { | |
907 | u64 val; | |
908 | ||
909 | val = nr64(ENET_SERDES_1_PLL_CFG); | |
910 | val &= ~ENET_SERDES_PLL_FBDIV2; | |
911 | switch (np->port) { | |
912 | case 0: | |
913 | val |= ENET_SERDES_PLL_HRATE0; | |
914 | break; | |
915 | case 1: | |
916 | val |= ENET_SERDES_PLL_HRATE1; | |
917 | break; | |
918 | case 2: | |
919 | val |= ENET_SERDES_PLL_HRATE2; | |
920 | break; | |
921 | case 3: | |
922 | val |= ENET_SERDES_PLL_HRATE3; | |
923 | break; | |
924 | default: | |
925 | return -EINVAL; | |
926 | } | |
927 | nw64(ENET_SERDES_1_PLL_CFG, val); | |
928 | ||
929 | return 0; | |
930 | } | |
931 | ||
5fbd7e24 MW |
932 | static int serdes_init_1g_serdes(struct niu *np) |
933 | { | |
934 | struct niu_link_config *lp = &np->link_config; | |
935 | unsigned long ctrl_reg, test_cfg_reg, pll_cfg, i; | |
936 | u64 ctrl_val, test_cfg_val, sig, mask, val; | |
937 | int err; | |
938 | u64 reset_val, val_rd; | |
939 | ||
940 | val = ENET_SERDES_PLL_HRATE0 | ENET_SERDES_PLL_HRATE1 | | |
941 | ENET_SERDES_PLL_HRATE2 | ENET_SERDES_PLL_HRATE3 | | |
942 | ENET_SERDES_PLL_FBDIV0; | |
943 | switch (np->port) { | |
944 | case 0: | |
945 | reset_val = ENET_SERDES_RESET_0; | |
946 | ctrl_reg = ENET_SERDES_0_CTRL_CFG; | |
947 | test_cfg_reg = ENET_SERDES_0_TEST_CFG; | |
948 | pll_cfg = ENET_SERDES_0_PLL_CFG; | |
949 | break; | |
950 | case 1: | |
951 | reset_val = ENET_SERDES_RESET_1; | |
952 | ctrl_reg = ENET_SERDES_1_CTRL_CFG; | |
953 | test_cfg_reg = ENET_SERDES_1_TEST_CFG; | |
954 | pll_cfg = ENET_SERDES_1_PLL_CFG; | |
955 | break; | |
956 | ||
957 | default: | |
958 | return -EINVAL; | |
959 | } | |
960 | ctrl_val = (ENET_SERDES_CTRL_SDET_0 | | |
961 | ENET_SERDES_CTRL_SDET_1 | | |
962 | ENET_SERDES_CTRL_SDET_2 | | |
963 | ENET_SERDES_CTRL_SDET_3 | | |
964 | (0x5 << ENET_SERDES_CTRL_EMPH_0_SHIFT) | | |
965 | (0x5 << ENET_SERDES_CTRL_EMPH_1_SHIFT) | | |
966 | (0x5 << ENET_SERDES_CTRL_EMPH_2_SHIFT) | | |
967 | (0x5 << ENET_SERDES_CTRL_EMPH_3_SHIFT) | | |
968 | (0x1 << ENET_SERDES_CTRL_LADJ_0_SHIFT) | | |
969 | (0x1 << ENET_SERDES_CTRL_LADJ_1_SHIFT) | | |
970 | (0x1 << ENET_SERDES_CTRL_LADJ_2_SHIFT) | | |
971 | (0x1 << ENET_SERDES_CTRL_LADJ_3_SHIFT)); | |
972 | test_cfg_val = 0; | |
973 | ||
974 | if (lp->loopback_mode == LOOPBACK_PHY) { | |
975 | test_cfg_val |= ((ENET_TEST_MD_PAD_LOOPBACK << | |
976 | ENET_SERDES_TEST_MD_0_SHIFT) | | |
977 | (ENET_TEST_MD_PAD_LOOPBACK << | |
978 | ENET_SERDES_TEST_MD_1_SHIFT) | | |
979 | (ENET_TEST_MD_PAD_LOOPBACK << | |
980 | ENET_SERDES_TEST_MD_2_SHIFT) | | |
981 | (ENET_TEST_MD_PAD_LOOPBACK << | |
982 | ENET_SERDES_TEST_MD_3_SHIFT)); | |
983 | } | |
984 | ||
985 | nw64(ENET_SERDES_RESET, reset_val); | |
986 | mdelay(20); | |
987 | val_rd = nr64(ENET_SERDES_RESET); | |
988 | val_rd &= ~reset_val; | |
989 | nw64(pll_cfg, val); | |
990 | nw64(ctrl_reg, ctrl_val); | |
991 | nw64(test_cfg_reg, test_cfg_val); | |
992 | nw64(ENET_SERDES_RESET, val_rd); | |
993 | mdelay(2000); | |
994 | ||
995 | /* Initialize all 4 lanes of the SERDES. */ | |
996 | for (i = 0; i < 4; i++) { | |
997 | u32 rxtx_ctrl, glue0; | |
998 | ||
999 | err = esr_read_rxtx_ctrl(np, i, &rxtx_ctrl); | |
1000 | if (err) | |
1001 | return err; | |
1002 | err = esr_read_glue0(np, i, &glue0); | |
1003 | if (err) | |
1004 | return err; | |
1005 | ||
1006 | rxtx_ctrl &= ~(ESR_RXTX_CTRL_VMUXLO); | |
1007 | rxtx_ctrl |= (ESR_RXTX_CTRL_ENSTRETCH | | |
1008 | (2 << ESR_RXTX_CTRL_VMUXLO_SHIFT)); | |
1009 | ||
1010 | glue0 &= ~(ESR_GLUE_CTRL0_SRATE | | |
1011 | ESR_GLUE_CTRL0_THCNT | | |
1012 | ESR_GLUE_CTRL0_BLTIME); | |
1013 | glue0 |= (ESR_GLUE_CTRL0_RXLOSENAB | | |
1014 | (0xf << ESR_GLUE_CTRL0_SRATE_SHIFT) | | |
1015 | (0xff << ESR_GLUE_CTRL0_THCNT_SHIFT) | | |
1016 | (BLTIME_300_CYCLES << | |
1017 | ESR_GLUE_CTRL0_BLTIME_SHIFT)); | |
1018 | ||
1019 | err = esr_write_rxtx_ctrl(np, i, rxtx_ctrl); | |
1020 | if (err) | |
1021 | return err; | |
1022 | err = esr_write_glue0(np, i, glue0); | |
1023 | if (err) | |
1024 | return err; | |
1025 | } | |
1026 | ||
1027 | ||
1028 | sig = nr64(ESR_INT_SIGNALS); | |
1029 | switch (np->port) { | |
1030 | case 0: | |
1031 | val = (ESR_INT_SRDY0_P0 | ESR_INT_DET0_P0); | |
1032 | mask = val; | |
1033 | break; | |
1034 | ||
1035 | case 1: | |
1036 | val = (ESR_INT_SRDY0_P1 | ESR_INT_DET0_P1); | |
1037 | mask = val; | |
1038 | break; | |
1039 | ||
1040 | default: | |
1041 | return -EINVAL; | |
1042 | } | |
1043 | ||
1044 | if ((sig & mask) != val) { | |
1045 | dev_err(np->device, PFX "Port %u signal bits [%08x] are not " | |
1046 | "[%08x]\n", np->port, (int) (sig & mask), (int) val); | |
1047 | return -ENODEV; | |
1048 | } | |
1049 | ||
1050 | return 0; | |
1051 | } | |
1052 | ||
1053 | static int link_status_1g_serdes(struct niu *np, int *link_up_p) | |
1054 | { | |
1055 | struct niu_link_config *lp = &np->link_config; | |
1056 | int link_up; | |
1057 | u64 val; | |
1058 | u16 current_speed; | |
1059 | unsigned long flags; | |
1060 | u8 current_duplex; | |
1061 | ||
1062 | link_up = 0; | |
1063 | current_speed = SPEED_INVALID; | |
1064 | current_duplex = DUPLEX_INVALID; | |
1065 | ||
1066 | spin_lock_irqsave(&np->lock, flags); | |
1067 | ||
1068 | val = nr64_pcs(PCS_MII_STAT); | |
1069 | ||
1070 | if (val & PCS_MII_STAT_LINK_STATUS) { | |
1071 | link_up = 1; | |
1072 | current_speed = SPEED_1000; | |
1073 | current_duplex = DUPLEX_FULL; | |
1074 | } | |
1075 | ||
1076 | lp->active_speed = current_speed; | |
1077 | lp->active_duplex = current_duplex; | |
1078 | spin_unlock_irqrestore(&np->lock, flags); | |
1079 | ||
1080 | *link_up_p = link_up; | |
1081 | return 0; | |
1082 | } | |
1083 | ||
5fbd7e24 MW |
1084 | static int link_status_10g_serdes(struct niu *np, int *link_up_p) |
1085 | { | |
1086 | unsigned long flags; | |
1087 | struct niu_link_config *lp = &np->link_config; | |
1088 | int link_up = 0; | |
1089 | int link_ok = 1; | |
1090 | u64 val, val2; | |
1091 | u16 current_speed; | |
1092 | u8 current_duplex; | |
1093 | ||
1094 | if (!(np->flags & NIU_FLAGS_10G)) | |
1095 | return link_status_1g_serdes(np, link_up_p); | |
1096 | ||
1097 | current_speed = SPEED_INVALID; | |
1098 | current_duplex = DUPLEX_INVALID; | |
1099 | spin_lock_irqsave(&np->lock, flags); | |
1100 | ||
1101 | val = nr64_xpcs(XPCS_STATUS(0)); | |
1102 | val2 = nr64_mac(XMAC_INTER2); | |
1103 | if (val2 & 0x01000000) | |
1104 | link_ok = 0; | |
1105 | ||
1106 | if ((val & 0x1000ULL) && link_ok) { | |
1107 | link_up = 1; | |
1108 | current_speed = SPEED_10000; | |
1109 | current_duplex = DUPLEX_FULL; | |
1110 | } | |
1111 | lp->active_speed = current_speed; | |
1112 | lp->active_duplex = current_duplex; | |
1113 | spin_unlock_irqrestore(&np->lock, flags); | |
1114 | *link_up_p = link_up; | |
1115 | return 0; | |
1116 | } | |
1117 | ||
5fbd7e24 MW |
1118 | static int link_status_1g_rgmii(struct niu *np, int *link_up_p) |
1119 | { | |
1120 | struct niu_link_config *lp = &np->link_config; | |
1121 | u16 current_speed, bmsr; | |
1122 | unsigned long flags; | |
1123 | u8 current_duplex; | |
1124 | int err, link_up; | |
1125 | ||
1126 | link_up = 0; | |
1127 | current_speed = SPEED_INVALID; | |
1128 | current_duplex = DUPLEX_INVALID; | |
1129 | ||
1130 | spin_lock_irqsave(&np->lock, flags); | |
1131 | ||
1132 | err = -EINVAL; | |
1133 | ||
1134 | err = mii_read(np, np->phy_addr, MII_BMSR); | |
1135 | if (err < 0) | |
1136 | goto out; | |
1137 | ||
1138 | bmsr = err; | |
1139 | if (bmsr & BMSR_LSTATUS) { | |
1140 | u16 adv, lpa, common, estat; | |
1141 | ||
1142 | err = mii_read(np, np->phy_addr, MII_ADVERTISE); | |
1143 | if (err < 0) | |
1144 | goto out; | |
1145 | adv = err; | |
1146 | ||
1147 | err = mii_read(np, np->phy_addr, MII_LPA); | |
1148 | if (err < 0) | |
1149 | goto out; | |
1150 | lpa = err; | |
1151 | ||
1152 | common = adv & lpa; | |
1153 | ||
1154 | err = mii_read(np, np->phy_addr, MII_ESTATUS); | |
1155 | if (err < 0) | |
1156 | goto out; | |
1157 | estat = err; | |
1158 | link_up = 1; | |
1159 | current_speed = SPEED_1000; | |
1160 | current_duplex = DUPLEX_FULL; | |
1161 | ||
1162 | } | |
1163 | lp->active_speed = current_speed; | |
1164 | lp->active_duplex = current_duplex; | |
1165 | err = 0; | |
1166 | ||
1167 | out: | |
1168 | spin_unlock_irqrestore(&np->lock, flags); | |
1169 | ||
1170 | *link_up_p = link_up; | |
1171 | return err; | |
1172 | } | |
1173 | ||
a3138df9 DM |
1174 | static int bcm8704_reset(struct niu *np) |
1175 | { | |
1176 | int err, limit; | |
1177 | ||
1178 | err = mdio_read(np, np->phy_addr, | |
1179 | BCM8704_PHYXS_DEV_ADDR, MII_BMCR); | |
1180 | if (err < 0) | |
1181 | return err; | |
1182 | err |= BMCR_RESET; | |
1183 | err = mdio_write(np, np->phy_addr, BCM8704_PHYXS_DEV_ADDR, | |
1184 | MII_BMCR, err); | |
1185 | if (err) | |
1186 | return err; | |
1187 | ||
1188 | limit = 1000; | |
1189 | while (--limit >= 0) { | |
1190 | err = mdio_read(np, np->phy_addr, | |
1191 | BCM8704_PHYXS_DEV_ADDR, MII_BMCR); | |
1192 | if (err < 0) | |
1193 | return err; | |
1194 | if (!(err & BMCR_RESET)) | |
1195 | break; | |
1196 | } | |
1197 | if (limit < 0) { | |
1198 | dev_err(np->device, PFX "Port %u PHY will not reset " | |
1199 | "(bmcr=%04x)\n", np->port, (err & 0xffff)); | |
1200 | return -ENODEV; | |
1201 | } | |
1202 | return 0; | |
1203 | } | |
1204 | ||
1205 | /* When written, certain PHY registers need to be read back twice | |
1206 | * in order for the bits to settle properly. | |
1207 | */ | |
1208 | static int bcm8704_user_dev3_readback(struct niu *np, int reg) | |
1209 | { | |
1210 | int err = mdio_read(np, np->phy_addr, BCM8704_USER_DEV3_ADDR, reg); | |
1211 | if (err < 0) | |
1212 | return err; | |
1213 | err = mdio_read(np, np->phy_addr, BCM8704_USER_DEV3_ADDR, reg); | |
1214 | if (err < 0) | |
1215 | return err; | |
1216 | return 0; | |
1217 | } | |
1218 | ||
a5d6ab56 MW |
1219 | static int bcm8706_init_user_dev3(struct niu *np) |
1220 | { | |
1221 | int err; | |
1222 | ||
1223 | ||
1224 | err = mdio_read(np, np->phy_addr, BCM8704_USER_DEV3_ADDR, | |
1225 | BCM8704_USER_OPT_DIGITAL_CTRL); | |
1226 | if (err < 0) | |
1227 | return err; | |
1228 | err &= ~USER_ODIG_CTRL_GPIOS; | |
1229 | err |= (0x3 << USER_ODIG_CTRL_GPIOS_SHIFT); | |
1230 | err |= USER_ODIG_CTRL_RESV2; | |
1231 | err = mdio_write(np, np->phy_addr, BCM8704_USER_DEV3_ADDR, | |
1232 | BCM8704_USER_OPT_DIGITAL_CTRL, err); | |
1233 | if (err) | |
1234 | return err; | |
1235 | ||
1236 | mdelay(1000); | |
1237 | ||
1238 | return 0; | |
1239 | } | |
1240 | ||
a3138df9 DM |
1241 | static int bcm8704_init_user_dev3(struct niu *np) |
1242 | { | |
1243 | int err; | |
1244 | ||
1245 | err = mdio_write(np, np->phy_addr, | |
1246 | BCM8704_USER_DEV3_ADDR, BCM8704_USER_CONTROL, | |
1247 | (USER_CONTROL_OPTXRST_LVL | | |
1248 | USER_CONTROL_OPBIASFLT_LVL | | |
1249 | USER_CONTROL_OBTMPFLT_LVL | | |
1250 | USER_CONTROL_OPPRFLT_LVL | | |
1251 | USER_CONTROL_OPTXFLT_LVL | | |
1252 | USER_CONTROL_OPRXLOS_LVL | | |
1253 | USER_CONTROL_OPRXFLT_LVL | | |
1254 | USER_CONTROL_OPTXON_LVL | | |
1255 | (0x3f << USER_CONTROL_RES1_SHIFT))); | |
1256 | if (err) | |
1257 | return err; | |
1258 | ||
1259 | err = mdio_write(np, np->phy_addr, | |
1260 | BCM8704_USER_DEV3_ADDR, BCM8704_USER_PMD_TX_CONTROL, | |
1261 | (USER_PMD_TX_CTL_XFP_CLKEN | | |
1262 | (1 << USER_PMD_TX_CTL_TX_DAC_TXD_SH) | | |
1263 | (2 << USER_PMD_TX_CTL_TX_DAC_TXCK_SH) | | |
1264 | USER_PMD_TX_CTL_TSCK_LPWREN)); | |
1265 | if (err) | |
1266 | return err; | |
1267 | ||
1268 | err = bcm8704_user_dev3_readback(np, BCM8704_USER_CONTROL); | |
1269 | if (err) | |
1270 | return err; | |
1271 | err = bcm8704_user_dev3_readback(np, BCM8704_USER_PMD_TX_CONTROL); | |
1272 | if (err) | |
1273 | return err; | |
1274 | ||
1275 | err = mdio_read(np, np->phy_addr, BCM8704_USER_DEV3_ADDR, | |
1276 | BCM8704_USER_OPT_DIGITAL_CTRL); | |
1277 | if (err < 0) | |
1278 | return err; | |
1279 | err &= ~USER_ODIG_CTRL_GPIOS; | |
1280 | err |= (0x3 << USER_ODIG_CTRL_GPIOS_SHIFT); | |
1281 | err = mdio_write(np, np->phy_addr, BCM8704_USER_DEV3_ADDR, | |
1282 | BCM8704_USER_OPT_DIGITAL_CTRL, err); | |
1283 | if (err) | |
1284 | return err; | |
1285 | ||
1286 | mdelay(1000); | |
1287 | ||
1288 | return 0; | |
1289 | } | |
1290 | ||
b0de8e40 ML |
1291 | static int mrvl88x2011_act_led(struct niu *np, int val) |
1292 | { | |
1293 | int err; | |
1294 | ||
1295 | err = mdio_read(np, np->phy_addr, MRVL88X2011_USER_DEV2_ADDR, | |
1296 | MRVL88X2011_LED_8_TO_11_CTL); | |
1297 | if (err < 0) | |
1298 | return err; | |
1299 | ||
1300 | err &= ~MRVL88X2011_LED(MRVL88X2011_LED_ACT,MRVL88X2011_LED_CTL_MASK); | |
1301 | err |= MRVL88X2011_LED(MRVL88X2011_LED_ACT,val); | |
1302 | ||
1303 | return mdio_write(np, np->phy_addr, MRVL88X2011_USER_DEV2_ADDR, | |
1304 | MRVL88X2011_LED_8_TO_11_CTL, err); | |
1305 | } | |
1306 | ||
1307 | static int mrvl88x2011_led_blink_rate(struct niu *np, int rate) | |
1308 | { | |
1309 | int err; | |
1310 | ||
1311 | err = mdio_read(np, np->phy_addr, MRVL88X2011_USER_DEV2_ADDR, | |
1312 | MRVL88X2011_LED_BLINK_CTL); | |
1313 | if (err >= 0) { | |
1314 | err &= ~MRVL88X2011_LED_BLKRATE_MASK; | |
1315 | err |= (rate << 4); | |
1316 | ||
1317 | err = mdio_write(np, np->phy_addr, MRVL88X2011_USER_DEV2_ADDR, | |
1318 | MRVL88X2011_LED_BLINK_CTL, err); | |
1319 | } | |
1320 | ||
1321 | return err; | |
1322 | } | |
1323 | ||
1324 | static int xcvr_init_10g_mrvl88x2011(struct niu *np) | |
1325 | { | |
1326 | int err; | |
1327 | ||
1328 | /* Set LED functions */ | |
1329 | err = mrvl88x2011_led_blink_rate(np, MRVL88X2011_LED_BLKRATE_134MS); | |
1330 | if (err) | |
1331 | return err; | |
1332 | ||
1333 | /* led activity */ | |
1334 | err = mrvl88x2011_act_led(np, MRVL88X2011_LED_CTL_OFF); | |
1335 | if (err) | |
1336 | return err; | |
1337 | ||
1338 | err = mdio_read(np, np->phy_addr, MRVL88X2011_USER_DEV3_ADDR, | |
1339 | MRVL88X2011_GENERAL_CTL); | |
1340 | if (err < 0) | |
1341 | return err; | |
1342 | ||
1343 | err |= MRVL88X2011_ENA_XFPREFCLK; | |
1344 | ||
1345 | err = mdio_write(np, np->phy_addr, MRVL88X2011_USER_DEV3_ADDR, | |
1346 | MRVL88X2011_GENERAL_CTL, err); | |
1347 | if (err < 0) | |
1348 | return err; | |
1349 | ||
1350 | err = mdio_read(np, np->phy_addr, MRVL88X2011_USER_DEV1_ADDR, | |
1351 | MRVL88X2011_PMA_PMD_CTL_1); | |
1352 | if (err < 0) | |
1353 | return err; | |
1354 | ||
1355 | if (np->link_config.loopback_mode == LOOPBACK_MAC) | |
1356 | err |= MRVL88X2011_LOOPBACK; | |
1357 | else | |
1358 | err &= ~MRVL88X2011_LOOPBACK; | |
1359 | ||
1360 | err = mdio_write(np, np->phy_addr, MRVL88X2011_USER_DEV1_ADDR, | |
1361 | MRVL88X2011_PMA_PMD_CTL_1, err); | |
1362 | if (err < 0) | |
1363 | return err; | |
1364 | ||
1365 | /* Enable PMD */ | |
1366 | return mdio_write(np, np->phy_addr, MRVL88X2011_USER_DEV1_ADDR, | |
1367 | MRVL88X2011_10G_PMD_TX_DIS, MRVL88X2011_ENA_PMDTX); | |
1368 | } | |
1369 | ||
a5d6ab56 MW |
1370 | |
1371 | static int xcvr_diag_bcm870x(struct niu *np) | |
a3138df9 | 1372 | { |
a3138df9 | 1373 | u16 analog_stat0, tx_alarm_status; |
a5d6ab56 | 1374 | int err = 0; |
a3138df9 DM |
1375 | |
1376 | #if 1 | |
1377 | err = mdio_read(np, np->phy_addr, BCM8704_PMA_PMD_DEV_ADDR, | |
1378 | MII_STAT1000); | |
1379 | if (err < 0) | |
1380 | return err; | |
1381 | pr_info(PFX "Port %u PMA_PMD(MII_STAT1000) [%04x]\n", | |
1382 | np->port, err); | |
1383 | ||
1384 | err = mdio_read(np, np->phy_addr, BCM8704_USER_DEV3_ADDR, 0x20); | |
1385 | if (err < 0) | |
1386 | return err; | |
1387 | pr_info(PFX "Port %u USER_DEV3(0x20) [%04x]\n", | |
1388 | np->port, err); | |
1389 | ||
1390 | err = mdio_read(np, np->phy_addr, BCM8704_PHYXS_DEV_ADDR, | |
1391 | MII_NWAYTEST); | |
1392 | if (err < 0) | |
1393 | return err; | |
1394 | pr_info(PFX "Port %u PHYXS(MII_NWAYTEST) [%04x]\n", | |
1395 | np->port, err); | |
1396 | #endif | |
1397 | ||
1398 | /* XXX dig this out it might not be so useful XXX */ | |
1399 | err = mdio_read(np, np->phy_addr, BCM8704_USER_DEV3_ADDR, | |
1400 | BCM8704_USER_ANALOG_STATUS0); | |
1401 | if (err < 0) | |
1402 | return err; | |
1403 | err = mdio_read(np, np->phy_addr, BCM8704_USER_DEV3_ADDR, | |
1404 | BCM8704_USER_ANALOG_STATUS0); | |
1405 | if (err < 0) | |
1406 | return err; | |
1407 | analog_stat0 = err; | |
1408 | ||
1409 | err = mdio_read(np, np->phy_addr, BCM8704_USER_DEV3_ADDR, | |
1410 | BCM8704_USER_TX_ALARM_STATUS); | |
1411 | if (err < 0) | |
1412 | return err; | |
1413 | err = mdio_read(np, np->phy_addr, BCM8704_USER_DEV3_ADDR, | |
1414 | BCM8704_USER_TX_ALARM_STATUS); | |
1415 | if (err < 0) | |
1416 | return err; | |
1417 | tx_alarm_status = err; | |
1418 | ||
1419 | if (analog_stat0 != 0x03fc) { | |
1420 | if ((analog_stat0 == 0x43bc) && (tx_alarm_status != 0)) { | |
1421 | pr_info(PFX "Port %u cable not connected " | |
1422 | "or bad cable.\n", np->port); | |
1423 | } else if (analog_stat0 == 0x639c) { | |
1424 | pr_info(PFX "Port %u optical module is bad " | |
1425 | "or missing.\n", np->port); | |
1426 | } | |
1427 | } | |
1428 | ||
1429 | return 0; | |
1430 | } | |
1431 | ||
a5d6ab56 MW |
1432 | static int xcvr_10g_set_lb_bcm870x(struct niu *np) |
1433 | { | |
1434 | struct niu_link_config *lp = &np->link_config; | |
1435 | int err; | |
1436 | ||
1437 | err = mdio_read(np, np->phy_addr, BCM8704_PCS_DEV_ADDR, | |
1438 | MII_BMCR); | |
1439 | if (err < 0) | |
1440 | return err; | |
1441 | ||
1442 | err &= ~BMCR_LOOPBACK; | |
1443 | ||
1444 | if (lp->loopback_mode == LOOPBACK_MAC) | |
1445 | err |= BMCR_LOOPBACK; | |
1446 | ||
1447 | err = mdio_write(np, np->phy_addr, BCM8704_PCS_DEV_ADDR, | |
1448 | MII_BMCR, err); | |
1449 | if (err) | |
1450 | return err; | |
1451 | ||
1452 | return 0; | |
1453 | } | |
1454 | ||
1455 | static int xcvr_init_10g_bcm8706(struct niu *np) | |
1456 | { | |
1457 | int err = 0; | |
1458 | u64 val; | |
1459 | ||
1460 | if ((np->flags & NIU_FLAGS_HOTPLUG_PHY) && | |
1461 | (np->flags & NIU_FLAGS_HOTPLUG_PHY_PRESENT) == 0) | |
1462 | return err; | |
1463 | ||
1464 | val = nr64_mac(XMAC_CONFIG); | |
1465 | val &= ~XMAC_CONFIG_LED_POLARITY; | |
1466 | val |= XMAC_CONFIG_FORCE_LED_ON; | |
1467 | nw64_mac(XMAC_CONFIG, val); | |
1468 | ||
1469 | val = nr64(MIF_CONFIG); | |
1470 | val |= MIF_CONFIG_INDIRECT_MODE; | |
1471 | nw64(MIF_CONFIG, val); | |
1472 | ||
1473 | err = bcm8704_reset(np); | |
1474 | if (err) | |
1475 | return err; | |
1476 | ||
1477 | err = xcvr_10g_set_lb_bcm870x(np); | |
1478 | if (err) | |
1479 | return err; | |
1480 | ||
1481 | err = bcm8706_init_user_dev3(np); | |
1482 | if (err) | |
1483 | return err; | |
1484 | ||
1485 | err = xcvr_diag_bcm870x(np); | |
1486 | if (err) | |
1487 | return err; | |
1488 | ||
1489 | return 0; | |
1490 | } | |
1491 | ||
1492 | static int xcvr_init_10g_bcm8704(struct niu *np) | |
1493 | { | |
1494 | int err; | |
1495 | ||
1496 | err = bcm8704_reset(np); | |
1497 | if (err) | |
1498 | return err; | |
1499 | ||
1500 | err = bcm8704_init_user_dev3(np); | |
1501 | if (err) | |
1502 | return err; | |
1503 | ||
1504 | err = xcvr_10g_set_lb_bcm870x(np); | |
1505 | if (err) | |
1506 | return err; | |
1507 | ||
1508 | err = xcvr_diag_bcm870x(np); | |
1509 | if (err) | |
1510 | return err; | |
1511 | ||
1512 | return 0; | |
1513 | } | |
1514 | ||
b0de8e40 ML |
1515 | static int xcvr_init_10g(struct niu *np) |
1516 | { | |
1517 | int phy_id, err; | |
1518 | u64 val; | |
1519 | ||
1520 | val = nr64_mac(XMAC_CONFIG); | |
1521 | val &= ~XMAC_CONFIG_LED_POLARITY; | |
1522 | val |= XMAC_CONFIG_FORCE_LED_ON; | |
1523 | nw64_mac(XMAC_CONFIG, val); | |
1524 | ||
1525 | /* XXX shared resource, lock parent XXX */ | |
1526 | val = nr64(MIF_CONFIG); | |
1527 | val |= MIF_CONFIG_INDIRECT_MODE; | |
1528 | nw64(MIF_CONFIG, val); | |
1529 | ||
1530 | phy_id = phy_decode(np->parent->port_phy, np->port); | |
1531 | phy_id = np->parent->phy_probe_info.phy_id[phy_id][np->port]; | |
1532 | ||
1533 | /* handle different phy types */ | |
1534 | switch (phy_id & NIU_PHY_ID_MASK) { | |
1535 | case NIU_PHY_ID_MRVL88X2011: | |
1536 | err = xcvr_init_10g_mrvl88x2011(np); | |
1537 | break; | |
1538 | ||
1539 | default: /* bcom 8704 */ | |
1540 | err = xcvr_init_10g_bcm8704(np); | |
1541 | break; | |
1542 | } | |
1543 | ||
1544 | return 0; | |
1545 | } | |
1546 | ||
a3138df9 DM |
1547 | static int mii_reset(struct niu *np) |
1548 | { | |
1549 | int limit, err; | |
1550 | ||
1551 | err = mii_write(np, np->phy_addr, MII_BMCR, BMCR_RESET); | |
1552 | if (err) | |
1553 | return err; | |
1554 | ||
1555 | limit = 1000; | |
1556 | while (--limit >= 0) { | |
1557 | udelay(500); | |
1558 | err = mii_read(np, np->phy_addr, MII_BMCR); | |
1559 | if (err < 0) | |
1560 | return err; | |
1561 | if (!(err & BMCR_RESET)) | |
1562 | break; | |
1563 | } | |
1564 | if (limit < 0) { | |
1565 | dev_err(np->device, PFX "Port %u MII would not reset, " | |
1566 | "bmcr[%04x]\n", np->port, err); | |
1567 | return -ENODEV; | |
1568 | } | |
1569 | ||
1570 | return 0; | |
1571 | } | |
1572 | ||
5fbd7e24 MW |
1573 | static int xcvr_init_1g_rgmii(struct niu *np) |
1574 | { | |
1575 | int err; | |
1576 | u64 val; | |
1577 | u16 bmcr, bmsr, estat; | |
1578 | ||
1579 | val = nr64(MIF_CONFIG); | |
1580 | val &= ~MIF_CONFIG_INDIRECT_MODE; | |
1581 | nw64(MIF_CONFIG, val); | |
1582 | ||
1583 | err = mii_reset(np); | |
1584 | if (err) | |
1585 | return err; | |
1586 | ||
1587 | err = mii_read(np, np->phy_addr, MII_BMSR); | |
1588 | if (err < 0) | |
1589 | return err; | |
1590 | bmsr = err; | |
1591 | ||
1592 | estat = 0; | |
1593 | if (bmsr & BMSR_ESTATEN) { | |
1594 | err = mii_read(np, np->phy_addr, MII_ESTATUS); | |
1595 | if (err < 0) | |
1596 | return err; | |
1597 | estat = err; | |
1598 | } | |
1599 | ||
1600 | bmcr = 0; | |
1601 | err = mii_write(np, np->phy_addr, MII_BMCR, bmcr); | |
1602 | if (err) | |
1603 | return err; | |
1604 | ||
1605 | if (bmsr & BMSR_ESTATEN) { | |
1606 | u16 ctrl1000 = 0; | |
1607 | ||
1608 | if (estat & ESTATUS_1000_TFULL) | |
1609 | ctrl1000 |= ADVERTISE_1000FULL; | |
1610 | err = mii_write(np, np->phy_addr, MII_CTRL1000, ctrl1000); | |
1611 | if (err) | |
1612 | return err; | |
1613 | } | |
1614 | ||
1615 | bmcr = (BMCR_SPEED1000 | BMCR_FULLDPLX); | |
1616 | ||
1617 | err = mii_write(np, np->phy_addr, MII_BMCR, bmcr); | |
1618 | if (err) | |
1619 | return err; | |
1620 | ||
1621 | err = mii_read(np, np->phy_addr, MII_BMCR); | |
1622 | if (err < 0) | |
1623 | return err; | |
1624 | bmcr = mii_read(np, np->phy_addr, MII_BMCR); | |
1625 | ||
1626 | err = mii_read(np, np->phy_addr, MII_BMSR); | |
1627 | if (err < 0) | |
1628 | return err; | |
1629 | ||
1630 | return 0; | |
1631 | } | |
1632 | ||
a3138df9 DM |
1633 | static int mii_init_common(struct niu *np) |
1634 | { | |
1635 | struct niu_link_config *lp = &np->link_config; | |
1636 | u16 bmcr, bmsr, adv, estat; | |
1637 | int err; | |
1638 | ||
1639 | err = mii_reset(np); | |
1640 | if (err) | |
1641 | return err; | |
1642 | ||
1643 | err = mii_read(np, np->phy_addr, MII_BMSR); | |
1644 | if (err < 0) | |
1645 | return err; | |
1646 | bmsr = err; | |
1647 | ||
1648 | estat = 0; | |
1649 | if (bmsr & BMSR_ESTATEN) { | |
1650 | err = mii_read(np, np->phy_addr, MII_ESTATUS); | |
1651 | if (err < 0) | |
1652 | return err; | |
1653 | estat = err; | |
1654 | } | |
1655 | ||
1656 | bmcr = 0; | |
1657 | err = mii_write(np, np->phy_addr, MII_BMCR, bmcr); | |
1658 | if (err) | |
1659 | return err; | |
1660 | ||
1661 | if (lp->loopback_mode == LOOPBACK_MAC) { | |
1662 | bmcr |= BMCR_LOOPBACK; | |
1663 | if (lp->active_speed == SPEED_1000) | |
1664 | bmcr |= BMCR_SPEED1000; | |
1665 | if (lp->active_duplex == DUPLEX_FULL) | |
1666 | bmcr |= BMCR_FULLDPLX; | |
1667 | } | |
1668 | ||
1669 | if (lp->loopback_mode == LOOPBACK_PHY) { | |
1670 | u16 aux; | |
1671 | ||
1672 | aux = (BCM5464R_AUX_CTL_EXT_LB | | |
1673 | BCM5464R_AUX_CTL_WRITE_1); | |
1674 | err = mii_write(np, np->phy_addr, BCM5464R_AUX_CTL, aux); | |
1675 | if (err) | |
1676 | return err; | |
1677 | } | |
1678 | ||
1679 | /* XXX configurable XXX */ | |
1680 | /* XXX for now don't advertise half-duplex or asym pause... XXX */ | |
1681 | adv = ADVERTISE_CSMA | ADVERTISE_PAUSE_CAP; | |
1682 | if (bmsr & BMSR_10FULL) | |
1683 | adv |= ADVERTISE_10FULL; | |
1684 | if (bmsr & BMSR_100FULL) | |
1685 | adv |= ADVERTISE_100FULL; | |
1686 | err = mii_write(np, np->phy_addr, MII_ADVERTISE, adv); | |
1687 | if (err) | |
1688 | return err; | |
1689 | ||
1690 | if (bmsr & BMSR_ESTATEN) { | |
1691 | u16 ctrl1000 = 0; | |
1692 | ||
1693 | if (estat & ESTATUS_1000_TFULL) | |
1694 | ctrl1000 |= ADVERTISE_1000FULL; | |
1695 | err = mii_write(np, np->phy_addr, MII_CTRL1000, ctrl1000); | |
1696 | if (err) | |
1697 | return err; | |
1698 | } | |
1699 | bmcr |= (BMCR_ANENABLE | BMCR_ANRESTART); | |
1700 | ||
1701 | err = mii_write(np, np->phy_addr, MII_BMCR, bmcr); | |
1702 | if (err) | |
1703 | return err; | |
1704 | ||
1705 | err = mii_read(np, np->phy_addr, MII_BMCR); | |
1706 | if (err < 0) | |
1707 | return err; | |
1708 | err = mii_read(np, np->phy_addr, MII_BMSR); | |
1709 | if (err < 0) | |
1710 | return err; | |
1711 | #if 0 | |
1712 | pr_info(PFX "Port %u after MII init bmcr[%04x] bmsr[%04x]\n", | |
1713 | np->port, bmcr, bmsr); | |
1714 | #endif | |
1715 | ||
1716 | return 0; | |
1717 | } | |
1718 | ||
1719 | static int xcvr_init_1g(struct niu *np) | |
1720 | { | |
1721 | u64 val; | |
1722 | ||
1723 | /* XXX shared resource, lock parent XXX */ | |
1724 | val = nr64(MIF_CONFIG); | |
1725 | val &= ~MIF_CONFIG_INDIRECT_MODE; | |
1726 | nw64(MIF_CONFIG, val); | |
1727 | ||
1728 | return mii_init_common(np); | |
1729 | } | |
1730 | ||
1731 | static int niu_xcvr_init(struct niu *np) | |
1732 | { | |
1733 | const struct niu_phy_ops *ops = np->phy_ops; | |
1734 | int err; | |
1735 | ||
1736 | err = 0; | |
1737 | if (ops->xcvr_init) | |
1738 | err = ops->xcvr_init(np); | |
1739 | ||
1740 | return err; | |
1741 | } | |
1742 | ||
1743 | static int niu_serdes_init(struct niu *np) | |
1744 | { | |
1745 | const struct niu_phy_ops *ops = np->phy_ops; | |
1746 | int err; | |
1747 | ||
1748 | err = 0; | |
1749 | if (ops->serdes_init) | |
1750 | err = ops->serdes_init(np); | |
1751 | ||
1752 | return err; | |
1753 | } | |
1754 | ||
1755 | static void niu_init_xif(struct niu *); | |
0c3b091b | 1756 | static void niu_handle_led(struct niu *, int status); |
a3138df9 DM |
1757 | |
1758 | static int niu_link_status_common(struct niu *np, int link_up) | |
1759 | { | |
1760 | struct niu_link_config *lp = &np->link_config; | |
1761 | struct net_device *dev = np->dev; | |
1762 | unsigned long flags; | |
1763 | ||
1764 | if (!netif_carrier_ok(dev) && link_up) { | |
1765 | niuinfo(LINK, "%s: Link is up at %s, %s duplex\n", | |
1766 | dev->name, | |
1767 | (lp->active_speed == SPEED_10000 ? | |
1768 | "10Gb/sec" : | |
1769 | (lp->active_speed == SPEED_1000 ? | |
1770 | "1Gb/sec" : | |
1771 | (lp->active_speed == SPEED_100 ? | |
1772 | "100Mbit/sec" : "10Mbit/sec"))), | |
1773 | (lp->active_duplex == DUPLEX_FULL ? | |
1774 | "full" : "half")); | |
1775 | ||
1776 | spin_lock_irqsave(&np->lock, flags); | |
1777 | niu_init_xif(np); | |
0c3b091b | 1778 | niu_handle_led(np, 1); |
a3138df9 DM |
1779 | spin_unlock_irqrestore(&np->lock, flags); |
1780 | ||
1781 | netif_carrier_on(dev); | |
1782 | } else if (netif_carrier_ok(dev) && !link_up) { | |
1783 | niuwarn(LINK, "%s: Link is down\n", dev->name); | |
0c3b091b ML |
1784 | spin_lock_irqsave(&np->lock, flags); |
1785 | niu_handle_led(np, 0); | |
1786 | spin_unlock_irqrestore(&np->lock, flags); | |
a3138df9 DM |
1787 | netif_carrier_off(dev); |
1788 | } | |
1789 | ||
1790 | return 0; | |
1791 | } | |
1792 | ||
b0de8e40 | 1793 | static int link_status_10g_mrvl(struct niu *np, int *link_up_p) |
a3138df9 | 1794 | { |
b0de8e40 | 1795 | int err, link_up, pma_status, pcs_status; |
a3138df9 DM |
1796 | |
1797 | link_up = 0; | |
1798 | ||
b0de8e40 ML |
1799 | err = mdio_read(np, np->phy_addr, MRVL88X2011_USER_DEV1_ADDR, |
1800 | MRVL88X2011_10G_PMD_STATUS_2); | |
1801 | if (err < 0) | |
1802 | goto out; | |
a3138df9 | 1803 | |
b0de8e40 ML |
1804 | /* Check PMA/PMD Register: 1.0001.2 == 1 */ |
1805 | err = mdio_read(np, np->phy_addr, MRVL88X2011_USER_DEV1_ADDR, | |
1806 | MRVL88X2011_PMA_PMD_STATUS_1); | |
1807 | if (err < 0) | |
1808 | goto out; | |
1809 | ||
1810 | pma_status = ((err & MRVL88X2011_LNK_STATUS_OK) ? 1 : 0); | |
1811 | ||
1812 | /* Check PMC Register : 3.0001.2 == 1: read twice */ | |
1813 | err = mdio_read(np, np->phy_addr, MRVL88X2011_USER_DEV3_ADDR, | |
1814 | MRVL88X2011_PMA_PMD_STATUS_1); | |
1815 | if (err < 0) | |
1816 | goto out; | |
1817 | ||
1818 | err = mdio_read(np, np->phy_addr, MRVL88X2011_USER_DEV3_ADDR, | |
1819 | MRVL88X2011_PMA_PMD_STATUS_1); | |
1820 | if (err < 0) | |
1821 | goto out; | |
1822 | ||
1823 | pcs_status = ((err & MRVL88X2011_LNK_STATUS_OK) ? 1 : 0); | |
1824 | ||
1825 | /* Check XGXS Register : 4.0018.[0-3,12] */ | |
1826 | err = mdio_read(np, np->phy_addr, MRVL88X2011_USER_DEV4_ADDR, | |
1827 | MRVL88X2011_10G_XGXS_LANE_STAT); | |
1828 | if (err < 0) | |
a3138df9 DM |
1829 | goto out; |
1830 | ||
b0de8e40 ML |
1831 | if (err == (PHYXS_XGXS_LANE_STAT_ALINGED | PHYXS_XGXS_LANE_STAT_LANE3 | |
1832 | PHYXS_XGXS_LANE_STAT_LANE2 | PHYXS_XGXS_LANE_STAT_LANE1 | | |
1833 | PHYXS_XGXS_LANE_STAT_LANE0 | PHYXS_XGXS_LANE_STAT_MAGIC | | |
1834 | 0x800)) | |
1835 | link_up = (pma_status && pcs_status) ? 1 : 0; | |
1836 | ||
1837 | np->link_config.active_speed = SPEED_10000; | |
1838 | np->link_config.active_duplex = DUPLEX_FULL; | |
1839 | err = 0; | |
1840 | out: | |
1841 | mrvl88x2011_act_led(np, (link_up ? | |
1842 | MRVL88X2011_LED_CTL_PCS_ACT : | |
1843 | MRVL88X2011_LED_CTL_OFF)); | |
1844 | ||
1845 | *link_up_p = link_up; | |
1846 | return err; | |
1847 | } | |
1848 | ||
a5d6ab56 MW |
1849 | static int link_status_10g_bcm8706(struct niu *np, int *link_up_p) |
1850 | { | |
1851 | int err, link_up; | |
1852 | link_up = 0; | |
1853 | ||
1854 | err = mdio_read(np, np->phy_addr, BCM8704_PMA_PMD_DEV_ADDR, | |
1855 | BCM8704_PMD_RCV_SIGDET); | |
1856 | if (err < 0) | |
1857 | goto out; | |
1858 | if (!(err & PMD_RCV_SIGDET_GLOBAL)) { | |
1859 | err = 0; | |
1860 | goto out; | |
1861 | } | |
1862 | ||
1863 | err = mdio_read(np, np->phy_addr, BCM8704_PCS_DEV_ADDR, | |
1864 | BCM8704_PCS_10G_R_STATUS); | |
1865 | if (err < 0) | |
1866 | goto out; | |
1867 | ||
1868 | if (!(err & PCS_10G_R_STATUS_BLK_LOCK)) { | |
1869 | err = 0; | |
1870 | goto out; | |
1871 | } | |
1872 | ||
1873 | err = mdio_read(np, np->phy_addr, BCM8704_PHYXS_DEV_ADDR, | |
1874 | BCM8704_PHYXS_XGXS_LANE_STAT); | |
1875 | if (err < 0) | |
1876 | goto out; | |
1877 | if (err != (PHYXS_XGXS_LANE_STAT_ALINGED | | |
1878 | PHYXS_XGXS_LANE_STAT_MAGIC | | |
1879 | PHYXS_XGXS_LANE_STAT_PATTEST | | |
1880 | PHYXS_XGXS_LANE_STAT_LANE3 | | |
1881 | PHYXS_XGXS_LANE_STAT_LANE2 | | |
1882 | PHYXS_XGXS_LANE_STAT_LANE1 | | |
1883 | PHYXS_XGXS_LANE_STAT_LANE0)) { | |
1884 | err = 0; | |
1885 | np->link_config.active_speed = SPEED_INVALID; | |
1886 | np->link_config.active_duplex = DUPLEX_INVALID; | |
1887 | goto out; | |
1888 | } | |
1889 | ||
1890 | link_up = 1; | |
1891 | np->link_config.active_speed = SPEED_10000; | |
1892 | np->link_config.active_duplex = DUPLEX_FULL; | |
1893 | err = 0; | |
1894 | ||
1895 | out: | |
1896 | *link_up_p = link_up; | |
1897 | if (np->flags & NIU_FLAGS_HOTPLUG_PHY) | |
1898 | err = 0; | |
1899 | return err; | |
1900 | } | |
1901 | ||
b0de8e40 ML |
1902 | static int link_status_10g_bcom(struct niu *np, int *link_up_p) |
1903 | { | |
1904 | int err, link_up; | |
1905 | ||
1906 | link_up = 0; | |
1907 | ||
a3138df9 DM |
1908 | err = mdio_read(np, np->phy_addr, BCM8704_PMA_PMD_DEV_ADDR, |
1909 | BCM8704_PMD_RCV_SIGDET); | |
1910 | if (err < 0) | |
1911 | goto out; | |
1912 | if (!(err & PMD_RCV_SIGDET_GLOBAL)) { | |
1913 | err = 0; | |
1914 | goto out; | |
1915 | } | |
1916 | ||
1917 | err = mdio_read(np, np->phy_addr, BCM8704_PCS_DEV_ADDR, | |
1918 | BCM8704_PCS_10G_R_STATUS); | |
1919 | if (err < 0) | |
1920 | goto out; | |
1921 | if (!(err & PCS_10G_R_STATUS_BLK_LOCK)) { | |
1922 | err = 0; | |
1923 | goto out; | |
1924 | } | |
1925 | ||
1926 | err = mdio_read(np, np->phy_addr, BCM8704_PHYXS_DEV_ADDR, | |
1927 | BCM8704_PHYXS_XGXS_LANE_STAT); | |
1928 | if (err < 0) | |
1929 | goto out; | |
1930 | ||
1931 | if (err != (PHYXS_XGXS_LANE_STAT_ALINGED | | |
1932 | PHYXS_XGXS_LANE_STAT_MAGIC | | |
1933 | PHYXS_XGXS_LANE_STAT_LANE3 | | |
1934 | PHYXS_XGXS_LANE_STAT_LANE2 | | |
1935 | PHYXS_XGXS_LANE_STAT_LANE1 | | |
1936 | PHYXS_XGXS_LANE_STAT_LANE0)) { | |
1937 | err = 0; | |
1938 | goto out; | |
1939 | } | |
1940 | ||
1941 | link_up = 1; | |
1942 | np->link_config.active_speed = SPEED_10000; | |
1943 | np->link_config.active_duplex = DUPLEX_FULL; | |
1944 | err = 0; | |
1945 | ||
1946 | out: | |
b0de8e40 ML |
1947 | *link_up_p = link_up; |
1948 | return err; | |
1949 | } | |
1950 | ||
1951 | static int link_status_10g(struct niu *np, int *link_up_p) | |
1952 | { | |
1953 | unsigned long flags; | |
1954 | int err = -EINVAL; | |
1955 | ||
1956 | spin_lock_irqsave(&np->lock, flags); | |
1957 | ||
1958 | if (np->link_config.loopback_mode == LOOPBACK_DISABLED) { | |
1959 | int phy_id; | |
1960 | ||
1961 | phy_id = phy_decode(np->parent->port_phy, np->port); | |
1962 | phy_id = np->parent->phy_probe_info.phy_id[phy_id][np->port]; | |
1963 | ||
1964 | /* handle different phy types */ | |
1965 | switch (phy_id & NIU_PHY_ID_MASK) { | |
1966 | case NIU_PHY_ID_MRVL88X2011: | |
1967 | err = link_status_10g_mrvl(np, link_up_p); | |
1968 | break; | |
1969 | ||
1970 | default: /* bcom 8704 */ | |
1971 | err = link_status_10g_bcom(np, link_up_p); | |
1972 | break; | |
1973 | } | |
1974 | } | |
1975 | ||
a3138df9 DM |
1976 | spin_unlock_irqrestore(&np->lock, flags); |
1977 | ||
a3138df9 DM |
1978 | return err; |
1979 | } | |
1980 | ||
a5d6ab56 MW |
1981 | static int niu_10g_phy_present(struct niu *np) |
1982 | { | |
1983 | u64 sig, mask, val; | |
1984 | ||
1985 | sig = nr64(ESR_INT_SIGNALS); | |
1986 | switch (np->port) { | |
1987 | case 0: | |
1988 | mask = ESR_INT_SIGNALS_P0_BITS; | |
1989 | val = (ESR_INT_SRDY0_P0 | | |
1990 | ESR_INT_DET0_P0 | | |
1991 | ESR_INT_XSRDY_P0 | | |
1992 | ESR_INT_XDP_P0_CH3 | | |
1993 | ESR_INT_XDP_P0_CH2 | | |
1994 | ESR_INT_XDP_P0_CH1 | | |
1995 | ESR_INT_XDP_P0_CH0); | |
1996 | break; | |
1997 | ||
1998 | case 1: | |
1999 | mask = ESR_INT_SIGNALS_P1_BITS; | |
2000 | val = (ESR_INT_SRDY0_P1 | | |
2001 | ESR_INT_DET0_P1 | | |
2002 | ESR_INT_XSRDY_P1 | | |
2003 | ESR_INT_XDP_P1_CH3 | | |
2004 | ESR_INT_XDP_P1_CH2 | | |
2005 | ESR_INT_XDP_P1_CH1 | | |
2006 | ESR_INT_XDP_P1_CH0); | |
2007 | break; | |
2008 | ||
2009 | default: | |
2010 | return 0; | |
2011 | } | |
2012 | ||
2013 | if ((sig & mask) != val) | |
2014 | return 0; | |
2015 | return 1; | |
2016 | } | |
2017 | ||
2018 | static int link_status_10g_hotplug(struct niu *np, int *link_up_p) | |
2019 | { | |
2020 | unsigned long flags; | |
2021 | int err = 0; | |
2022 | int phy_present; | |
2023 | int phy_present_prev; | |
2024 | ||
2025 | spin_lock_irqsave(&np->lock, flags); | |
2026 | ||
2027 | if (np->link_config.loopback_mode == LOOPBACK_DISABLED) { | |
2028 | phy_present_prev = (np->flags & NIU_FLAGS_HOTPLUG_PHY_PRESENT) ? | |
2029 | 1 : 0; | |
2030 | phy_present = niu_10g_phy_present(np); | |
2031 | if (phy_present != phy_present_prev) { | |
2032 | /* state change */ | |
2033 | if (phy_present) { | |
2034 | np->flags |= NIU_FLAGS_HOTPLUG_PHY_PRESENT; | |
2035 | if (np->phy_ops->xcvr_init) | |
2036 | err = np->phy_ops->xcvr_init(np); | |
2037 | if (err) { | |
2038 | /* debounce */ | |
2039 | np->flags &= ~NIU_FLAGS_HOTPLUG_PHY_PRESENT; | |
2040 | } | |
2041 | } else { | |
2042 | np->flags &= ~NIU_FLAGS_HOTPLUG_PHY_PRESENT; | |
2043 | *link_up_p = 0; | |
2044 | niuwarn(LINK, "%s: Hotplug PHY Removed\n", | |
2045 | np->dev->name); | |
2046 | } | |
2047 | } | |
2048 | if (np->flags & NIU_FLAGS_HOTPLUG_PHY_PRESENT) | |
2049 | err = link_status_10g_bcm8706(np, link_up_p); | |
2050 | } | |
2051 | ||
2052 | spin_unlock_irqrestore(&np->lock, flags); | |
2053 | ||
2054 | return err; | |
2055 | } | |
2056 | ||
a3138df9 DM |
2057 | static int link_status_1g(struct niu *np, int *link_up_p) |
2058 | { | |
e415e6ea | 2059 | struct niu_link_config *lp = &np->link_config; |
a3138df9 DM |
2060 | u16 current_speed, bmsr; |
2061 | unsigned long flags; | |
2062 | u8 current_duplex; | |
2063 | int err, link_up; | |
2064 | ||
2065 | link_up = 0; | |
2066 | current_speed = SPEED_INVALID; | |
2067 | current_duplex = DUPLEX_INVALID; | |
2068 | ||
2069 | spin_lock_irqsave(&np->lock, flags); | |
2070 | ||
2071 | err = -EINVAL; | |
2072 | if (np->link_config.loopback_mode != LOOPBACK_DISABLED) | |
2073 | goto out; | |
2074 | ||
2075 | err = mii_read(np, np->phy_addr, MII_BMSR); | |
2076 | if (err < 0) | |
2077 | goto out; | |
2078 | ||
2079 | bmsr = err; | |
2080 | if (bmsr & BMSR_LSTATUS) { | |
2081 | u16 adv, lpa, common, estat; | |
2082 | ||
2083 | err = mii_read(np, np->phy_addr, MII_ADVERTISE); | |
2084 | if (err < 0) | |
2085 | goto out; | |
2086 | adv = err; | |
2087 | ||
2088 | err = mii_read(np, np->phy_addr, MII_LPA); | |
2089 | if (err < 0) | |
2090 | goto out; | |
2091 | lpa = err; | |
2092 | ||
2093 | common = adv & lpa; | |
2094 | ||
2095 | err = mii_read(np, np->phy_addr, MII_ESTATUS); | |
2096 | if (err < 0) | |
2097 | goto out; | |
2098 | estat = err; | |
2099 | ||
2100 | link_up = 1; | |
2101 | if (estat & (ESTATUS_1000_TFULL | ESTATUS_1000_THALF)) { | |
2102 | current_speed = SPEED_1000; | |
2103 | if (estat & ESTATUS_1000_TFULL) | |
2104 | current_duplex = DUPLEX_FULL; | |
2105 | else | |
2106 | current_duplex = DUPLEX_HALF; | |
2107 | } else { | |
2108 | if (common & ADVERTISE_100BASE4) { | |
2109 | current_speed = SPEED_100; | |
2110 | current_duplex = DUPLEX_HALF; | |
2111 | } else if (common & ADVERTISE_100FULL) { | |
2112 | current_speed = SPEED_100; | |
2113 | current_duplex = DUPLEX_FULL; | |
2114 | } else if (common & ADVERTISE_100HALF) { | |
2115 | current_speed = SPEED_100; | |
2116 | current_duplex = DUPLEX_HALF; | |
2117 | } else if (common & ADVERTISE_10FULL) { | |
2118 | current_speed = SPEED_10; | |
2119 | current_duplex = DUPLEX_FULL; | |
2120 | } else if (common & ADVERTISE_10HALF) { | |
2121 | current_speed = SPEED_10; | |
2122 | current_duplex = DUPLEX_HALF; | |
2123 | } else | |
2124 | link_up = 0; | |
2125 | } | |
2126 | } | |
e415e6ea DM |
2127 | lp->active_speed = current_speed; |
2128 | lp->active_duplex = current_duplex; | |
a3138df9 DM |
2129 | err = 0; |
2130 | ||
2131 | out: | |
2132 | spin_unlock_irqrestore(&np->lock, flags); | |
2133 | ||
2134 | *link_up_p = link_up; | |
2135 | return err; | |
2136 | } | |
2137 | ||
2138 | static int niu_link_status(struct niu *np, int *link_up_p) | |
2139 | { | |
2140 | const struct niu_phy_ops *ops = np->phy_ops; | |
2141 | int err; | |
2142 | ||
2143 | err = 0; | |
2144 | if (ops->link_status) | |
2145 | err = ops->link_status(np, link_up_p); | |
2146 | ||
2147 | return err; | |
2148 | } | |
2149 | ||
2150 | static void niu_timer(unsigned long __opaque) | |
2151 | { | |
2152 | struct niu *np = (struct niu *) __opaque; | |
2153 | unsigned long off; | |
2154 | int err, link_up; | |
2155 | ||
2156 | err = niu_link_status(np, &link_up); | |
2157 | if (!err) | |
2158 | niu_link_status_common(np, link_up); | |
2159 | ||
2160 | if (netif_carrier_ok(np->dev)) | |
2161 | off = 5 * HZ; | |
2162 | else | |
2163 | off = 1 * HZ; | |
2164 | np->timer.expires = jiffies + off; | |
2165 | ||
2166 | add_timer(&np->timer); | |
2167 | } | |
2168 | ||
5fbd7e24 MW |
2169 | static const struct niu_phy_ops phy_ops_10g_serdes = { |
2170 | .serdes_init = serdes_init_10g_serdes, | |
2171 | .link_status = link_status_10g_serdes, | |
2172 | }; | |
2173 | ||
e3e081e1 SB |
2174 | static const struct niu_phy_ops phy_ops_10g_serdes_niu = { |
2175 | .serdes_init = serdes_init_niu_10g_serdes, | |
2176 | .link_status = link_status_10g_serdes, | |
2177 | }; | |
2178 | ||
2179 | static const struct niu_phy_ops phy_ops_1g_serdes_niu = { | |
2180 | .serdes_init = serdes_init_niu_1g_serdes, | |
2181 | .link_status = link_status_1g_serdes, | |
2182 | }; | |
2183 | ||
5fbd7e24 MW |
2184 | static const struct niu_phy_ops phy_ops_1g_rgmii = { |
2185 | .xcvr_init = xcvr_init_1g_rgmii, | |
2186 | .link_status = link_status_1g_rgmii, | |
2187 | }; | |
2188 | ||
a3138df9 | 2189 | static const struct niu_phy_ops phy_ops_10g_fiber_niu = { |
e3e081e1 | 2190 | .serdes_init = serdes_init_niu_10g_fiber, |
a3138df9 DM |
2191 | .xcvr_init = xcvr_init_10g, |
2192 | .link_status = link_status_10g, | |
2193 | }; | |
2194 | ||
2195 | static const struct niu_phy_ops phy_ops_10g_fiber = { | |
2196 | .serdes_init = serdes_init_10g, | |
2197 | .xcvr_init = xcvr_init_10g, | |
2198 | .link_status = link_status_10g, | |
2199 | }; | |
2200 | ||
a5d6ab56 MW |
2201 | static const struct niu_phy_ops phy_ops_10g_fiber_hotplug = { |
2202 | .serdes_init = serdes_init_10g, | |
2203 | .xcvr_init = xcvr_init_10g_bcm8706, | |
2204 | .link_status = link_status_10g_hotplug, | |
2205 | }; | |
2206 | ||
a3138df9 DM |
2207 | static const struct niu_phy_ops phy_ops_10g_copper = { |
2208 | .serdes_init = serdes_init_10g, | |
2209 | .link_status = link_status_10g, /* XXX */ | |
2210 | }; | |
2211 | ||
2212 | static const struct niu_phy_ops phy_ops_1g_fiber = { | |
2213 | .serdes_init = serdes_init_1g, | |
2214 | .xcvr_init = xcvr_init_1g, | |
2215 | .link_status = link_status_1g, | |
2216 | }; | |
2217 | ||
2218 | static const struct niu_phy_ops phy_ops_1g_copper = { | |
2219 | .xcvr_init = xcvr_init_1g, | |
2220 | .link_status = link_status_1g, | |
2221 | }; | |
2222 | ||
2223 | struct niu_phy_template { | |
2224 | const struct niu_phy_ops *ops; | |
2225 | u32 phy_addr_base; | |
2226 | }; | |
2227 | ||
e3e081e1 | 2228 | static const struct niu_phy_template phy_template_niu_10g_fiber = { |
a3138df9 DM |
2229 | .ops = &phy_ops_10g_fiber_niu, |
2230 | .phy_addr_base = 16, | |
2231 | }; | |
2232 | ||
e3e081e1 SB |
2233 | static const struct niu_phy_template phy_template_niu_10g_serdes = { |
2234 | .ops = &phy_ops_10g_serdes_niu, | |
2235 | .phy_addr_base = 0, | |
2236 | }; | |
2237 | ||
2238 | static const struct niu_phy_template phy_template_niu_1g_serdes = { | |
2239 | .ops = &phy_ops_1g_serdes_niu, | |
2240 | .phy_addr_base = 0, | |
2241 | }; | |
2242 | ||
a3138df9 DM |
2243 | static const struct niu_phy_template phy_template_10g_fiber = { |
2244 | .ops = &phy_ops_10g_fiber, | |
2245 | .phy_addr_base = 8, | |
2246 | }; | |
2247 | ||
a5d6ab56 MW |
2248 | static const struct niu_phy_template phy_template_10g_fiber_hotplug = { |
2249 | .ops = &phy_ops_10g_fiber_hotplug, | |
2250 | .phy_addr_base = 8, | |
2251 | }; | |
2252 | ||
a3138df9 DM |
2253 | static const struct niu_phy_template phy_template_10g_copper = { |
2254 | .ops = &phy_ops_10g_copper, | |
2255 | .phy_addr_base = 10, | |
2256 | }; | |
2257 | ||
2258 | static const struct niu_phy_template phy_template_1g_fiber = { | |
2259 | .ops = &phy_ops_1g_fiber, | |
2260 | .phy_addr_base = 0, | |
2261 | }; | |
2262 | ||
2263 | static const struct niu_phy_template phy_template_1g_copper = { | |
2264 | .ops = &phy_ops_1g_copper, | |
2265 | .phy_addr_base = 0, | |
2266 | }; | |
2267 | ||
5fbd7e24 MW |
2268 | static const struct niu_phy_template phy_template_1g_rgmii = { |
2269 | .ops = &phy_ops_1g_rgmii, | |
2270 | .phy_addr_base = 0, | |
2271 | }; | |
2272 | ||
2273 | static const struct niu_phy_template phy_template_10g_serdes = { | |
2274 | .ops = &phy_ops_10g_serdes, | |
2275 | .phy_addr_base = 0, | |
2276 | }; | |
2277 | ||
2278 | static int niu_atca_port_num[4] = { | |
2279 | 0, 0, 11, 10 | |
2280 | }; | |
2281 | ||
2282 | static int serdes_init_10g_serdes(struct niu *np) | |
2283 | { | |
2284 | struct niu_link_config *lp = &np->link_config; | |
2285 | unsigned long ctrl_reg, test_cfg_reg, pll_cfg, i; | |
2286 | u64 ctrl_val, test_cfg_val, sig, mask, val; | |
2287 | int err; | |
2288 | u64 reset_val; | |
2289 | ||
2290 | switch (np->port) { | |
2291 | case 0: | |
2292 | reset_val = ENET_SERDES_RESET_0; | |
2293 | ctrl_reg = ENET_SERDES_0_CTRL_CFG; | |
2294 | test_cfg_reg = ENET_SERDES_0_TEST_CFG; | |
2295 | pll_cfg = ENET_SERDES_0_PLL_CFG; | |
2296 | break; | |
2297 | case 1: | |
2298 | reset_val = ENET_SERDES_RESET_1; | |
2299 | ctrl_reg = ENET_SERDES_1_CTRL_CFG; | |
2300 | test_cfg_reg = ENET_SERDES_1_TEST_CFG; | |
2301 | pll_cfg = ENET_SERDES_1_PLL_CFG; | |
2302 | break; | |
2303 | ||
2304 | default: | |
2305 | return -EINVAL; | |
2306 | } | |
2307 | ctrl_val = (ENET_SERDES_CTRL_SDET_0 | | |
2308 | ENET_SERDES_CTRL_SDET_1 | | |
2309 | ENET_SERDES_CTRL_SDET_2 | | |
2310 | ENET_SERDES_CTRL_SDET_3 | | |
2311 | (0x5 << ENET_SERDES_CTRL_EMPH_0_SHIFT) | | |
2312 | (0x5 << ENET_SERDES_CTRL_EMPH_1_SHIFT) | | |
2313 | (0x5 << ENET_SERDES_CTRL_EMPH_2_SHIFT) | | |
2314 | (0x5 << ENET_SERDES_CTRL_EMPH_3_SHIFT) | | |
2315 | (0x1 << ENET_SERDES_CTRL_LADJ_0_SHIFT) | | |
2316 | (0x1 << ENET_SERDES_CTRL_LADJ_1_SHIFT) | | |
2317 | (0x1 << ENET_SERDES_CTRL_LADJ_2_SHIFT) | | |
2318 | (0x1 << ENET_SERDES_CTRL_LADJ_3_SHIFT)); | |
2319 | test_cfg_val = 0; | |
2320 | ||
2321 | if (lp->loopback_mode == LOOPBACK_PHY) { | |
2322 | test_cfg_val |= ((ENET_TEST_MD_PAD_LOOPBACK << | |
2323 | ENET_SERDES_TEST_MD_0_SHIFT) | | |
2324 | (ENET_TEST_MD_PAD_LOOPBACK << | |
2325 | ENET_SERDES_TEST_MD_1_SHIFT) | | |
2326 | (ENET_TEST_MD_PAD_LOOPBACK << | |
2327 | ENET_SERDES_TEST_MD_2_SHIFT) | | |
2328 | (ENET_TEST_MD_PAD_LOOPBACK << | |
2329 | ENET_SERDES_TEST_MD_3_SHIFT)); | |
2330 | } | |
2331 | ||
2332 | esr_reset(np); | |
2333 | nw64(pll_cfg, ENET_SERDES_PLL_FBDIV2); | |
2334 | nw64(ctrl_reg, ctrl_val); | |
2335 | nw64(test_cfg_reg, test_cfg_val); | |
2336 | ||
2337 | /* Initialize all 4 lanes of the SERDES. */ | |
2338 | for (i = 0; i < 4; i++) { | |
2339 | u32 rxtx_ctrl, glue0; | |
2340 | ||
2341 | err = esr_read_rxtx_ctrl(np, i, &rxtx_ctrl); | |
2342 | if (err) | |
2343 | return err; | |
2344 | err = esr_read_glue0(np, i, &glue0); | |
2345 | if (err) | |
2346 | return err; | |
2347 | ||
2348 | rxtx_ctrl &= ~(ESR_RXTX_CTRL_VMUXLO); | |
2349 | rxtx_ctrl |= (ESR_RXTX_CTRL_ENSTRETCH | | |
2350 | (2 << ESR_RXTX_CTRL_VMUXLO_SHIFT)); | |
2351 | ||
2352 | glue0 &= ~(ESR_GLUE_CTRL0_SRATE | | |
2353 | ESR_GLUE_CTRL0_THCNT | | |
2354 | ESR_GLUE_CTRL0_BLTIME); | |
2355 | glue0 |= (ESR_GLUE_CTRL0_RXLOSENAB | | |
2356 | (0xf << ESR_GLUE_CTRL0_SRATE_SHIFT) | | |
2357 | (0xff << ESR_GLUE_CTRL0_THCNT_SHIFT) | | |
2358 | (BLTIME_300_CYCLES << | |
2359 | ESR_GLUE_CTRL0_BLTIME_SHIFT)); | |
2360 | ||
2361 | err = esr_write_rxtx_ctrl(np, i, rxtx_ctrl); | |
2362 | if (err) | |
2363 | return err; | |
2364 | err = esr_write_glue0(np, i, glue0); | |
2365 | if (err) | |
2366 | return err; | |
2367 | } | |
2368 | ||
2369 | ||
2370 | sig = nr64(ESR_INT_SIGNALS); | |
2371 | switch (np->port) { | |
2372 | case 0: | |
2373 | mask = ESR_INT_SIGNALS_P0_BITS; | |
2374 | val = (ESR_INT_SRDY0_P0 | | |
2375 | ESR_INT_DET0_P0 | | |
2376 | ESR_INT_XSRDY_P0 | | |
2377 | ESR_INT_XDP_P0_CH3 | | |
2378 | ESR_INT_XDP_P0_CH2 | | |
2379 | ESR_INT_XDP_P0_CH1 | | |
2380 | ESR_INT_XDP_P0_CH0); | |
2381 | break; | |
2382 | ||
2383 | case 1: | |
2384 | mask = ESR_INT_SIGNALS_P1_BITS; | |
2385 | val = (ESR_INT_SRDY0_P1 | | |
2386 | ESR_INT_DET0_P1 | | |
2387 | ESR_INT_XSRDY_P1 | | |
2388 | ESR_INT_XDP_P1_CH3 | | |
2389 | ESR_INT_XDP_P1_CH2 | | |
2390 | ESR_INT_XDP_P1_CH1 | | |
2391 | ESR_INT_XDP_P1_CH0); | |
2392 | break; | |
2393 | ||
2394 | default: | |
2395 | return -EINVAL; | |
2396 | } | |
2397 | ||
2398 | if ((sig & mask) != val) { | |
2399 | int err; | |
2400 | err = serdes_init_1g_serdes(np); | |
2401 | if (!err) { | |
2402 | np->flags &= ~NIU_FLAGS_10G; | |
2403 | np->mac_xcvr = MAC_XCVR_PCS; | |
2404 | } else { | |
2405 | dev_err(np->device, PFX "Port %u 10G/1G SERDES Link Failed \n", | |
2406 | np->port); | |
2407 | return -ENODEV; | |
2408 | } | |
2409 | } | |
2410 | ||
2411 | return 0; | |
2412 | } | |
2413 | ||
a3138df9 DM |
2414 | static int niu_determine_phy_disposition(struct niu *np) |
2415 | { | |
2416 | struct niu_parent *parent = np->parent; | |
2417 | u8 plat_type = parent->plat_type; | |
2418 | const struct niu_phy_template *tp; | |
2419 | u32 phy_addr_off = 0; | |
2420 | ||
2421 | if (plat_type == PLAT_TYPE_NIU) { | |
e3e081e1 SB |
2422 | switch (np->flags & |
2423 | (NIU_FLAGS_10G | | |
2424 | NIU_FLAGS_FIBER | | |
2425 | NIU_FLAGS_XCVR_SERDES)) { | |
2426 | case NIU_FLAGS_10G | NIU_FLAGS_XCVR_SERDES: | |
2427 | /* 10G Serdes */ | |
2428 | tp = &phy_template_niu_10g_serdes; | |
2429 | break; | |
2430 | case NIU_FLAGS_XCVR_SERDES: | |
2431 | /* 1G Serdes */ | |
2432 | tp = &phy_template_niu_1g_serdes; | |
2433 | break; | |
2434 | case NIU_FLAGS_10G | NIU_FLAGS_FIBER: | |
2435 | /* 10G Fiber */ | |
2436 | default: | |
2437 | tp = &phy_template_niu_10g_fiber; | |
2438 | phy_addr_off += np->port; | |
2439 | break; | |
2440 | } | |
a3138df9 | 2441 | } else { |
5fbd7e24 MW |
2442 | switch (np->flags & |
2443 | (NIU_FLAGS_10G | | |
2444 | NIU_FLAGS_FIBER | | |
2445 | NIU_FLAGS_XCVR_SERDES)) { | |
a3138df9 DM |
2446 | case 0: |
2447 | /* 1G copper */ | |
2448 | tp = &phy_template_1g_copper; | |
2449 | if (plat_type == PLAT_TYPE_VF_P0) | |
2450 | phy_addr_off = 10; | |
2451 | else if (plat_type == PLAT_TYPE_VF_P1) | |
2452 | phy_addr_off = 26; | |
2453 | ||
2454 | phy_addr_off += (np->port ^ 0x3); | |
2455 | break; | |
2456 | ||
2457 | case NIU_FLAGS_10G: | |
2458 | /* 10G copper */ | |
2459 | tp = &phy_template_1g_copper; | |
2460 | break; | |
2461 | ||
2462 | case NIU_FLAGS_FIBER: | |
2463 | /* 1G fiber */ | |
2464 | tp = &phy_template_1g_fiber; | |
2465 | break; | |
2466 | ||
2467 | case NIU_FLAGS_10G | NIU_FLAGS_FIBER: | |
2468 | /* 10G fiber */ | |
2469 | tp = &phy_template_10g_fiber; | |
2470 | if (plat_type == PLAT_TYPE_VF_P0 || | |
2471 | plat_type == PLAT_TYPE_VF_P1) | |
2472 | phy_addr_off = 8; | |
2473 | phy_addr_off += np->port; | |
a5d6ab56 MW |
2474 | if (np->flags & NIU_FLAGS_HOTPLUG_PHY) { |
2475 | tp = &phy_template_10g_fiber_hotplug; | |
2476 | if (np->port == 0) | |
2477 | phy_addr_off = 8; | |
2478 | if (np->port == 1) | |
2479 | phy_addr_off = 12; | |
2480 | } | |
a3138df9 DM |
2481 | break; |
2482 | ||
5fbd7e24 MW |
2483 | case NIU_FLAGS_10G | NIU_FLAGS_XCVR_SERDES: |
2484 | case NIU_FLAGS_XCVR_SERDES | NIU_FLAGS_FIBER: | |
2485 | case NIU_FLAGS_XCVR_SERDES: | |
2486 | switch(np->port) { | |
2487 | case 0: | |
2488 | case 1: | |
2489 | tp = &phy_template_10g_serdes; | |
2490 | break; | |
2491 | case 2: | |
2492 | case 3: | |
2493 | tp = &phy_template_1g_rgmii; | |
2494 | break; | |
2495 | default: | |
2496 | return -EINVAL; | |
2497 | break; | |
2498 | } | |
2499 | phy_addr_off = niu_atca_port_num[np->port]; | |
2500 | break; | |
2501 | ||
a3138df9 DM |
2502 | default: |
2503 | return -EINVAL; | |
2504 | } | |
2505 | } | |
2506 | ||
2507 | np->phy_ops = tp->ops; | |
2508 | np->phy_addr = tp->phy_addr_base + phy_addr_off; | |
2509 | ||
2510 | return 0; | |
2511 | } | |
2512 | ||
2513 | static int niu_init_link(struct niu *np) | |
2514 | { | |
2515 | struct niu_parent *parent = np->parent; | |
2516 | int err, ignore; | |
2517 | ||
2518 | if (parent->plat_type == PLAT_TYPE_NIU) { | |
2519 | err = niu_xcvr_init(np); | |
2520 | if (err) | |
2521 | return err; | |
2522 | msleep(200); | |
2523 | } | |
2524 | err = niu_serdes_init(np); | |
2525 | if (err) | |
2526 | return err; | |
2527 | msleep(200); | |
2528 | err = niu_xcvr_init(np); | |
2529 | if (!err) | |
2530 | niu_link_status(np, &ignore); | |
2531 | return 0; | |
2532 | } | |
2533 | ||
2534 | static void niu_set_primary_mac(struct niu *np, unsigned char *addr) | |
2535 | { | |
2536 | u16 reg0 = addr[4] << 8 | addr[5]; | |
2537 | u16 reg1 = addr[2] << 8 | addr[3]; | |
2538 | u16 reg2 = addr[0] << 8 | addr[1]; | |
2539 | ||
2540 | if (np->flags & NIU_FLAGS_XMAC) { | |
2541 | nw64_mac(XMAC_ADDR0, reg0); | |
2542 | nw64_mac(XMAC_ADDR1, reg1); | |
2543 | nw64_mac(XMAC_ADDR2, reg2); | |
2544 | } else { | |
2545 | nw64_mac(BMAC_ADDR0, reg0); | |
2546 | nw64_mac(BMAC_ADDR1, reg1); | |
2547 | nw64_mac(BMAC_ADDR2, reg2); | |
2548 | } | |
2549 | } | |
2550 | ||
2551 | static int niu_num_alt_addr(struct niu *np) | |
2552 | { | |
2553 | if (np->flags & NIU_FLAGS_XMAC) | |
2554 | return XMAC_NUM_ALT_ADDR; | |
2555 | else | |
2556 | return BMAC_NUM_ALT_ADDR; | |
2557 | } | |
2558 | ||
2559 | static int niu_set_alt_mac(struct niu *np, int index, unsigned char *addr) | |
2560 | { | |
2561 | u16 reg0 = addr[4] << 8 | addr[5]; | |
2562 | u16 reg1 = addr[2] << 8 | addr[3]; | |
2563 | u16 reg2 = addr[0] << 8 | addr[1]; | |
2564 | ||
2565 | if (index >= niu_num_alt_addr(np)) | |
2566 | return -EINVAL; | |
2567 | ||
2568 | if (np->flags & NIU_FLAGS_XMAC) { | |
2569 | nw64_mac(XMAC_ALT_ADDR0(index), reg0); | |
2570 | nw64_mac(XMAC_ALT_ADDR1(index), reg1); | |
2571 | nw64_mac(XMAC_ALT_ADDR2(index), reg2); | |
2572 | } else { | |
2573 | nw64_mac(BMAC_ALT_ADDR0(index), reg0); | |
2574 | nw64_mac(BMAC_ALT_ADDR1(index), reg1); | |
2575 | nw64_mac(BMAC_ALT_ADDR2(index), reg2); | |
2576 | } | |
2577 | ||
2578 | return 0; | |
2579 | } | |
2580 | ||
2581 | static int niu_enable_alt_mac(struct niu *np, int index, int on) | |
2582 | { | |
2583 | unsigned long reg; | |
2584 | u64 val, mask; | |
2585 | ||
2586 | if (index >= niu_num_alt_addr(np)) | |
2587 | return -EINVAL; | |
2588 | ||
fa907895 | 2589 | if (np->flags & NIU_FLAGS_XMAC) { |
a3138df9 | 2590 | reg = XMAC_ADDR_CMPEN; |
fa907895 MW |
2591 | mask = 1 << index; |
2592 | } else { | |
a3138df9 | 2593 | reg = BMAC_ADDR_CMPEN; |
fa907895 MW |
2594 | mask = 1 << (index + 1); |
2595 | } | |
a3138df9 DM |
2596 | |
2597 | val = nr64_mac(reg); | |
2598 | if (on) | |
2599 | val |= mask; | |
2600 | else | |
2601 | val &= ~mask; | |
2602 | nw64_mac(reg, val); | |
2603 | ||
2604 | return 0; | |
2605 | } | |
2606 | ||
2607 | static void __set_rdc_table_num_hw(struct niu *np, unsigned long reg, | |
2608 | int num, int mac_pref) | |
2609 | { | |
2610 | u64 val = nr64_mac(reg); | |
2611 | val &= ~(HOST_INFO_MACRDCTBLN | HOST_INFO_MPR); | |
2612 | val |= num; | |
2613 | if (mac_pref) | |
2614 | val |= HOST_INFO_MPR; | |
2615 | nw64_mac(reg, val); | |
2616 | } | |
2617 | ||
2618 | static int __set_rdc_table_num(struct niu *np, | |
2619 | int xmac_index, int bmac_index, | |
2620 | int rdc_table_num, int mac_pref) | |
2621 | { | |
2622 | unsigned long reg; | |
2623 | ||
2624 | if (rdc_table_num & ~HOST_INFO_MACRDCTBLN) | |
2625 | return -EINVAL; | |
2626 | if (np->flags & NIU_FLAGS_XMAC) | |
2627 | reg = XMAC_HOST_INFO(xmac_index); | |
2628 | else | |
2629 | reg = BMAC_HOST_INFO(bmac_index); | |
2630 | __set_rdc_table_num_hw(np, reg, rdc_table_num, mac_pref); | |
2631 | return 0; | |
2632 | } | |
2633 | ||
2634 | static int niu_set_primary_mac_rdc_table(struct niu *np, int table_num, | |
2635 | int mac_pref) | |
2636 | { | |
2637 | return __set_rdc_table_num(np, 17, 0, table_num, mac_pref); | |
2638 | } | |
2639 | ||
2640 | static int niu_set_multicast_mac_rdc_table(struct niu *np, int table_num, | |
2641 | int mac_pref) | |
2642 | { | |
2643 | return __set_rdc_table_num(np, 16, 8, table_num, mac_pref); | |
2644 | } | |
2645 | ||
2646 | static int niu_set_alt_mac_rdc_table(struct niu *np, int idx, | |
2647 | int table_num, int mac_pref) | |
2648 | { | |
2649 | if (idx >= niu_num_alt_addr(np)) | |
2650 | return -EINVAL; | |
2651 | return __set_rdc_table_num(np, idx, idx + 1, table_num, mac_pref); | |
2652 | } | |
2653 | ||
2654 | static u64 vlan_entry_set_parity(u64 reg_val) | |
2655 | { | |
2656 | u64 port01_mask; | |
2657 | u64 port23_mask; | |
2658 | ||
2659 | port01_mask = 0x00ff; | |
2660 | port23_mask = 0xff00; | |
2661 | ||
2662 | if (hweight64(reg_val & port01_mask) & 1) | |
2663 | reg_val |= ENET_VLAN_TBL_PARITY0; | |
2664 | else | |
2665 | reg_val &= ~ENET_VLAN_TBL_PARITY0; | |
2666 | ||
2667 | if (hweight64(reg_val & port23_mask) & 1) | |
2668 | reg_val |= ENET_VLAN_TBL_PARITY1; | |
2669 | else | |
2670 | reg_val &= ~ENET_VLAN_TBL_PARITY1; | |
2671 | ||
2672 | return reg_val; | |
2673 | } | |
2674 | ||
2675 | static void vlan_tbl_write(struct niu *np, unsigned long index, | |
2676 | int port, int vpr, int rdc_table) | |
2677 | { | |
2678 | u64 reg_val = nr64(ENET_VLAN_TBL(index)); | |
2679 | ||
2680 | reg_val &= ~((ENET_VLAN_TBL_VPR | | |
2681 | ENET_VLAN_TBL_VLANRDCTBLN) << | |
2682 | ENET_VLAN_TBL_SHIFT(port)); | |
2683 | if (vpr) | |
2684 | reg_val |= (ENET_VLAN_TBL_VPR << | |
2685 | ENET_VLAN_TBL_SHIFT(port)); | |
2686 | reg_val |= (rdc_table << ENET_VLAN_TBL_SHIFT(port)); | |
2687 | ||
2688 | reg_val = vlan_entry_set_parity(reg_val); | |
2689 | ||
2690 | nw64(ENET_VLAN_TBL(index), reg_val); | |
2691 | } | |
2692 | ||
2693 | static void vlan_tbl_clear(struct niu *np) | |
2694 | { | |
2695 | int i; | |
2696 | ||
2697 | for (i = 0; i < ENET_VLAN_TBL_NUM_ENTRIES; i++) | |
2698 | nw64(ENET_VLAN_TBL(i), 0); | |
2699 | } | |
2700 | ||
2701 | static int tcam_wait_bit(struct niu *np, u64 bit) | |
2702 | { | |
2703 | int limit = 1000; | |
2704 | ||
2705 | while (--limit > 0) { | |
2706 | if (nr64(TCAM_CTL) & bit) | |
2707 | break; | |
2708 | udelay(1); | |
2709 | } | |
2710 | if (limit < 0) | |
2711 | return -ENODEV; | |
2712 | ||
2713 | return 0; | |
2714 | } | |
2715 | ||
2716 | static int tcam_flush(struct niu *np, int index) | |
2717 | { | |
2718 | nw64(TCAM_KEY_0, 0x00); | |
2719 | nw64(TCAM_KEY_MASK_0, 0xff); | |
2720 | nw64(TCAM_CTL, (TCAM_CTL_RWC_TCAM_WRITE | index)); | |
2721 | ||
2722 | return tcam_wait_bit(np, TCAM_CTL_STAT); | |
2723 | } | |
2724 | ||
2725 | #if 0 | |
2726 | static int tcam_read(struct niu *np, int index, | |
2727 | u64 *key, u64 *mask) | |
2728 | { | |
2729 | int err; | |
2730 | ||
2731 | nw64(TCAM_CTL, (TCAM_CTL_RWC_TCAM_READ | index)); | |
2732 | err = tcam_wait_bit(np, TCAM_CTL_STAT); | |
2733 | if (!err) { | |
2734 | key[0] = nr64(TCAM_KEY_0); | |
2735 | key[1] = nr64(TCAM_KEY_1); | |
2736 | key[2] = nr64(TCAM_KEY_2); | |
2737 | key[3] = nr64(TCAM_KEY_3); | |
2738 | mask[0] = nr64(TCAM_KEY_MASK_0); | |
2739 | mask[1] = nr64(TCAM_KEY_MASK_1); | |
2740 | mask[2] = nr64(TCAM_KEY_MASK_2); | |
2741 | mask[3] = nr64(TCAM_KEY_MASK_3); | |
2742 | } | |
2743 | return err; | |
2744 | } | |
2745 | #endif | |
2746 | ||
2747 | static int tcam_write(struct niu *np, int index, | |
2748 | u64 *key, u64 *mask) | |
2749 | { | |
2750 | nw64(TCAM_KEY_0, key[0]); | |
2751 | nw64(TCAM_KEY_1, key[1]); | |
2752 | nw64(TCAM_KEY_2, key[2]); | |
2753 | nw64(TCAM_KEY_3, key[3]); | |
2754 | nw64(TCAM_KEY_MASK_0, mask[0]); | |
2755 | nw64(TCAM_KEY_MASK_1, mask[1]); | |
2756 | nw64(TCAM_KEY_MASK_2, mask[2]); | |
2757 | nw64(TCAM_KEY_MASK_3, mask[3]); | |
2758 | nw64(TCAM_CTL, (TCAM_CTL_RWC_TCAM_WRITE | index)); | |
2759 | ||
2760 | return tcam_wait_bit(np, TCAM_CTL_STAT); | |
2761 | } | |
2762 | ||
2763 | #if 0 | |
2764 | static int tcam_assoc_read(struct niu *np, int index, u64 *data) | |
2765 | { | |
2766 | int err; | |
2767 | ||
2768 | nw64(TCAM_CTL, (TCAM_CTL_RWC_RAM_READ | index)); | |
2769 | err = tcam_wait_bit(np, TCAM_CTL_STAT); | |
2770 | if (!err) | |
2771 | *data = nr64(TCAM_KEY_1); | |
2772 | ||
2773 | return err; | |
2774 | } | |
2775 | #endif | |
2776 | ||
2777 | static int tcam_assoc_write(struct niu *np, int index, u64 assoc_data) | |
2778 | { | |
2779 | nw64(TCAM_KEY_1, assoc_data); | |
2780 | nw64(TCAM_CTL, (TCAM_CTL_RWC_RAM_WRITE | index)); | |
2781 | ||
2782 | return tcam_wait_bit(np, TCAM_CTL_STAT); | |
2783 | } | |
2784 | ||
2785 | static void tcam_enable(struct niu *np, int on) | |
2786 | { | |
2787 | u64 val = nr64(FFLP_CFG_1); | |
2788 | ||
2789 | if (on) | |
2790 | val &= ~FFLP_CFG_1_TCAM_DIS; | |
2791 | else | |
2792 | val |= FFLP_CFG_1_TCAM_DIS; | |
2793 | nw64(FFLP_CFG_1, val); | |
2794 | } | |
2795 | ||
2796 | static void tcam_set_lat_and_ratio(struct niu *np, u64 latency, u64 ratio) | |
2797 | { | |
2798 | u64 val = nr64(FFLP_CFG_1); | |
2799 | ||
2800 | val &= ~(FFLP_CFG_1_FFLPINITDONE | | |
2801 | FFLP_CFG_1_CAMLAT | | |
2802 | FFLP_CFG_1_CAMRATIO); | |
2803 | val |= (latency << FFLP_CFG_1_CAMLAT_SHIFT); | |
2804 | val |= (ratio << FFLP_CFG_1_CAMRATIO_SHIFT); | |
2805 | nw64(FFLP_CFG_1, val); | |
2806 | ||
2807 | val = nr64(FFLP_CFG_1); | |
2808 | val |= FFLP_CFG_1_FFLPINITDONE; | |
2809 | nw64(FFLP_CFG_1, val); | |
2810 | } | |
2811 | ||
2812 | static int tcam_user_eth_class_enable(struct niu *np, unsigned long class, | |
2813 | int on) | |
2814 | { | |
2815 | unsigned long reg; | |
2816 | u64 val; | |
2817 | ||
2818 | if (class < CLASS_CODE_ETHERTYPE1 || | |
2819 | class > CLASS_CODE_ETHERTYPE2) | |
2820 | return -EINVAL; | |
2821 | ||
2822 | reg = L2_CLS(class - CLASS_CODE_ETHERTYPE1); | |
2823 | val = nr64(reg); | |
2824 | if (on) | |
2825 | val |= L2_CLS_VLD; | |
2826 | else | |
2827 | val &= ~L2_CLS_VLD; | |
2828 | nw64(reg, val); | |
2829 | ||
2830 | return 0; | |
2831 | } | |
2832 | ||
2833 | #if 0 | |
2834 | static int tcam_user_eth_class_set(struct niu *np, unsigned long class, | |
2835 | u64 ether_type) | |
2836 | { | |
2837 | unsigned long reg; | |
2838 | u64 val; | |
2839 | ||
2840 | if (class < CLASS_CODE_ETHERTYPE1 || | |
2841 | class > CLASS_CODE_ETHERTYPE2 || | |
2842 | (ether_type & ~(u64)0xffff) != 0) | |
2843 | return -EINVAL; | |
2844 | ||
2845 | reg = L2_CLS(class - CLASS_CODE_ETHERTYPE1); | |
2846 | val = nr64(reg); | |
2847 | val &= ~L2_CLS_ETYPE; | |
2848 | val |= (ether_type << L2_CLS_ETYPE_SHIFT); | |
2849 | nw64(reg, val); | |
2850 | ||
2851 | return 0; | |
2852 | } | |
2853 | #endif | |
2854 | ||
2855 | static int tcam_user_ip_class_enable(struct niu *np, unsigned long class, | |
2856 | int on) | |
2857 | { | |
2858 | unsigned long reg; | |
2859 | u64 val; | |
2860 | ||
2861 | if (class < CLASS_CODE_USER_PROG1 || | |
2862 | class > CLASS_CODE_USER_PROG4) | |
2863 | return -EINVAL; | |
2864 | ||
2865 | reg = L3_CLS(class - CLASS_CODE_USER_PROG1); | |
2866 | val = nr64(reg); | |
2867 | if (on) | |
2868 | val |= L3_CLS_VALID; | |
2869 | else | |
2870 | val &= ~L3_CLS_VALID; | |
2871 | nw64(reg, val); | |
2872 | ||
2873 | return 0; | |
2874 | } | |
2875 | ||
2876 | #if 0 | |
2877 | static int tcam_user_ip_class_set(struct niu *np, unsigned long class, | |
2878 | int ipv6, u64 protocol_id, | |
2879 | u64 tos_mask, u64 tos_val) | |
2880 | { | |
2881 | unsigned long reg; | |
2882 | u64 val; | |
2883 | ||
2884 | if (class < CLASS_CODE_USER_PROG1 || | |
2885 | class > CLASS_CODE_USER_PROG4 || | |
2886 | (protocol_id & ~(u64)0xff) != 0 || | |
2887 | (tos_mask & ~(u64)0xff) != 0 || | |
2888 | (tos_val & ~(u64)0xff) != 0) | |
2889 | return -EINVAL; | |
2890 | ||
2891 | reg = L3_CLS(class - CLASS_CODE_USER_PROG1); | |
2892 | val = nr64(reg); | |
2893 | val &= ~(L3_CLS_IPVER | L3_CLS_PID | | |
2894 | L3_CLS_TOSMASK | L3_CLS_TOS); | |
2895 | if (ipv6) | |
2896 | val |= L3_CLS_IPVER; | |
2897 | val |= (protocol_id << L3_CLS_PID_SHIFT); | |
2898 | val |= (tos_mask << L3_CLS_TOSMASK_SHIFT); | |
2899 | val |= (tos_val << L3_CLS_TOS_SHIFT); | |
2900 | nw64(reg, val); | |
2901 | ||
2902 | return 0; | |
2903 | } | |
2904 | #endif | |
2905 | ||
2906 | static int tcam_early_init(struct niu *np) | |
2907 | { | |
2908 | unsigned long i; | |
2909 | int err; | |
2910 | ||
2911 | tcam_enable(np, 0); | |
2912 | tcam_set_lat_and_ratio(np, | |
2913 | DEFAULT_TCAM_LATENCY, | |
2914 | DEFAULT_TCAM_ACCESS_RATIO); | |
2915 | for (i = CLASS_CODE_ETHERTYPE1; i <= CLASS_CODE_ETHERTYPE2; i++) { | |
2916 | err = tcam_user_eth_class_enable(np, i, 0); | |
2917 | if (err) | |
2918 | return err; | |
2919 | } | |
2920 | for (i = CLASS_CODE_USER_PROG1; i <= CLASS_CODE_USER_PROG4; i++) { | |
2921 | err = tcam_user_ip_class_enable(np, i, 0); | |
2922 | if (err) | |
2923 | return err; | |
2924 | } | |
2925 | ||
2926 | return 0; | |
2927 | } | |
2928 | ||
2929 | static int tcam_flush_all(struct niu *np) | |
2930 | { | |
2931 | unsigned long i; | |
2932 | ||
2933 | for (i = 0; i < np->parent->tcam_num_entries; i++) { | |
2934 | int err = tcam_flush(np, i); | |
2935 | if (err) | |
2936 | return err; | |
2937 | } | |
2938 | return 0; | |
2939 | } | |
2940 | ||
2941 | static u64 hash_addr_regval(unsigned long index, unsigned long num_entries) | |
2942 | { | |
2943 | return ((u64)index | (num_entries == 1 ? | |
2944 | HASH_TBL_ADDR_AUTOINC : 0)); | |
2945 | } | |
2946 | ||
2947 | #if 0 | |
2948 | static int hash_read(struct niu *np, unsigned long partition, | |
2949 | unsigned long index, unsigned long num_entries, | |
2950 | u64 *data) | |
2951 | { | |
2952 | u64 val = hash_addr_regval(index, num_entries); | |
2953 | unsigned long i; | |
2954 | ||
2955 | if (partition >= FCRAM_NUM_PARTITIONS || | |
2956 | index + num_entries > FCRAM_SIZE) | |
2957 | return -EINVAL; | |
2958 | ||
2959 | nw64(HASH_TBL_ADDR(partition), val); | |
2960 | for (i = 0; i < num_entries; i++) | |
2961 | data[i] = nr64(HASH_TBL_DATA(partition)); | |
2962 | ||
2963 | return 0; | |
2964 | } | |
2965 | #endif | |
2966 | ||
2967 | static int hash_write(struct niu *np, unsigned long partition, | |
2968 | unsigned long index, unsigned long num_entries, | |
2969 | u64 *data) | |
2970 | { | |
2971 | u64 val = hash_addr_regval(index, num_entries); | |
2972 | unsigned long i; | |
2973 | ||
2974 | if (partition >= FCRAM_NUM_PARTITIONS || | |
2975 | index + (num_entries * 8) > FCRAM_SIZE) | |
2976 | return -EINVAL; | |
2977 | ||
2978 | nw64(HASH_TBL_ADDR(partition), val); | |
2979 | for (i = 0; i < num_entries; i++) | |
2980 | nw64(HASH_TBL_DATA(partition), data[i]); | |
2981 | ||
2982 | return 0; | |
2983 | } | |
2984 | ||
2985 | static void fflp_reset(struct niu *np) | |
2986 | { | |
2987 | u64 val; | |
2988 | ||
2989 | nw64(FFLP_CFG_1, FFLP_CFG_1_PIO_FIO_RST); | |
2990 | udelay(10); | |
2991 | nw64(FFLP_CFG_1, 0); | |
2992 | ||
2993 | val = FFLP_CFG_1_FCRAMOUTDR_NORMAL | FFLP_CFG_1_FFLPINITDONE; | |
2994 | nw64(FFLP_CFG_1, val); | |
2995 | } | |
2996 | ||
2997 | static void fflp_set_timings(struct niu *np) | |
2998 | { | |
2999 | u64 val = nr64(FFLP_CFG_1); | |
3000 | ||
3001 | val &= ~FFLP_CFG_1_FFLPINITDONE; | |
3002 | val |= (DEFAULT_FCRAMRATIO << FFLP_CFG_1_FCRAMRATIO_SHIFT); | |
3003 | nw64(FFLP_CFG_1, val); | |
3004 | ||
3005 | val = nr64(FFLP_CFG_1); | |
3006 | val |= FFLP_CFG_1_FFLPINITDONE; | |
3007 | nw64(FFLP_CFG_1, val); | |
3008 | ||
3009 | val = nr64(FCRAM_REF_TMR); | |
3010 | val &= ~(FCRAM_REF_TMR_MAX | FCRAM_REF_TMR_MIN); | |
3011 | val |= (DEFAULT_FCRAM_REFRESH_MAX << FCRAM_REF_TMR_MAX_SHIFT); | |
3012 | val |= (DEFAULT_FCRAM_REFRESH_MIN << FCRAM_REF_TMR_MIN_SHIFT); | |
3013 | nw64(FCRAM_REF_TMR, val); | |
3014 | } | |
3015 | ||
3016 | static int fflp_set_partition(struct niu *np, u64 partition, | |
3017 | u64 mask, u64 base, int enable) | |
3018 | { | |
3019 | unsigned long reg; | |
3020 | u64 val; | |
3021 | ||
3022 | if (partition >= FCRAM_NUM_PARTITIONS || | |
3023 | (mask & ~(u64)0x1f) != 0 || | |
3024 | (base & ~(u64)0x1f) != 0) | |
3025 | return -EINVAL; | |
3026 | ||
3027 | reg = FLW_PRT_SEL(partition); | |
3028 | ||
3029 | val = nr64(reg); | |
3030 | val &= ~(FLW_PRT_SEL_EXT | FLW_PRT_SEL_MASK | FLW_PRT_SEL_BASE); | |
3031 | val |= (mask << FLW_PRT_SEL_MASK_SHIFT); | |
3032 | val |= (base << FLW_PRT_SEL_BASE_SHIFT); | |
3033 | if (enable) | |
3034 | val |= FLW_PRT_SEL_EXT; | |
3035 | nw64(reg, val); | |
3036 | ||
3037 | return 0; | |
3038 | } | |
3039 | ||
3040 | static int fflp_disable_all_partitions(struct niu *np) | |
3041 | { | |
3042 | unsigned long i; | |
3043 | ||
3044 | for (i = 0; i < FCRAM_NUM_PARTITIONS; i++) { | |
3045 | int err = fflp_set_partition(np, 0, 0, 0, 0); | |
3046 | if (err) | |
3047 | return err; | |
3048 | } | |
3049 | return 0; | |
3050 | } | |
3051 | ||
3052 | static void fflp_llcsnap_enable(struct niu *np, int on) | |
3053 | { | |
3054 | u64 val = nr64(FFLP_CFG_1); | |
3055 | ||
3056 | if (on) | |
3057 | val |= FFLP_CFG_1_LLCSNAP; | |
3058 | else | |
3059 | val &= ~FFLP_CFG_1_LLCSNAP; | |
3060 | nw64(FFLP_CFG_1, val); | |
3061 | } | |
3062 | ||
3063 | static void fflp_errors_enable(struct niu *np, int on) | |
3064 | { | |
3065 | u64 val = nr64(FFLP_CFG_1); | |
3066 | ||
3067 | if (on) | |
3068 | val &= ~FFLP_CFG_1_ERRORDIS; | |
3069 | else | |
3070 | val |= FFLP_CFG_1_ERRORDIS; | |
3071 | nw64(FFLP_CFG_1, val); | |
3072 | } | |
3073 | ||
3074 | static int fflp_hash_clear(struct niu *np) | |
3075 | { | |
3076 | struct fcram_hash_ipv4 ent; | |
3077 | unsigned long i; | |
3078 | ||
3079 | /* IPV4 hash entry with valid bit clear, rest is don't care. */ | |
3080 | memset(&ent, 0, sizeof(ent)); | |
3081 | ent.header = HASH_HEADER_EXT; | |
3082 | ||
3083 | for (i = 0; i < FCRAM_SIZE; i += sizeof(ent)) { | |
3084 | int err = hash_write(np, 0, i, 1, (u64 *) &ent); | |
3085 | if (err) | |
3086 | return err; | |
3087 | } | |
3088 | return 0; | |
3089 | } | |
3090 | ||
3091 | static int fflp_early_init(struct niu *np) | |
3092 | { | |
3093 | struct niu_parent *parent; | |
3094 | unsigned long flags; | |
3095 | int err; | |
3096 | ||
3097 | niu_lock_parent(np, flags); | |
3098 | ||
3099 | parent = np->parent; | |
3100 | err = 0; | |
3101 | if (!(parent->flags & PARENT_FLGS_CLS_HWINIT)) { | |
3102 | niudbg(PROBE, "fflp_early_init: Initting hw on port %u\n", | |
3103 | np->port); | |
3104 | if (np->parent->plat_type != PLAT_TYPE_NIU) { | |
3105 | fflp_reset(np); | |
3106 | fflp_set_timings(np); | |
3107 | err = fflp_disable_all_partitions(np); | |
3108 | if (err) { | |
3109 | niudbg(PROBE, "fflp_disable_all_partitions " | |
3110 | "failed, err=%d\n", err); | |
3111 | goto out; | |
3112 | } | |
3113 | } | |
3114 | ||
3115 | err = tcam_early_init(np); | |
3116 | if (err) { | |
3117 | niudbg(PROBE, "tcam_early_init failed, err=%d\n", | |
3118 | err); | |
3119 | goto out; | |
3120 | } | |
3121 | fflp_llcsnap_enable(np, 1); | |
3122 | fflp_errors_enable(np, 0); | |
3123 | nw64(H1POLY, 0); | |
3124 | nw64(H2POLY, 0); | |
3125 | ||
3126 | err = tcam_flush_all(np); | |
3127 | if (err) { | |
3128 | niudbg(PROBE, "tcam_flush_all failed, err=%d\n", | |
3129 | err); | |
3130 | goto out; | |
3131 | } | |
3132 | if (np->parent->plat_type != PLAT_TYPE_NIU) { | |
3133 | err = fflp_hash_clear(np); | |
3134 | if (err) { | |
3135 | niudbg(PROBE, "fflp_hash_clear failed, " | |
3136 | "err=%d\n", err); | |
3137 | goto out; | |
3138 | } | |
3139 | } | |
3140 | ||
3141 | vlan_tbl_clear(np); | |
3142 | ||
3143 | niudbg(PROBE, "fflp_early_init: Success\n"); | |
3144 | parent->flags |= PARENT_FLGS_CLS_HWINIT; | |
3145 | } | |
3146 | out: | |
3147 | niu_unlock_parent(np, flags); | |
3148 | return err; | |
3149 | } | |
3150 | ||
3151 | static int niu_set_flow_key(struct niu *np, unsigned long class_code, u64 key) | |
3152 | { | |
3153 | if (class_code < CLASS_CODE_USER_PROG1 || | |
3154 | class_code > CLASS_CODE_SCTP_IPV6) | |
3155 | return -EINVAL; | |
3156 | ||
3157 | nw64(FLOW_KEY(class_code - CLASS_CODE_USER_PROG1), key); | |
3158 | return 0; | |
3159 | } | |
3160 | ||
3161 | static int niu_set_tcam_key(struct niu *np, unsigned long class_code, u64 key) | |
3162 | { | |
3163 | if (class_code < CLASS_CODE_USER_PROG1 || | |
3164 | class_code > CLASS_CODE_SCTP_IPV6) | |
3165 | return -EINVAL; | |
3166 | ||
3167 | nw64(TCAM_KEY(class_code - CLASS_CODE_USER_PROG1), key); | |
3168 | return 0; | |
3169 | } | |
3170 | ||
3171 | static void niu_rx_skb_append(struct sk_buff *skb, struct page *page, | |
3172 | u32 offset, u32 size) | |
3173 | { | |
3174 | int i = skb_shinfo(skb)->nr_frags; | |
3175 | skb_frag_t *frag = &skb_shinfo(skb)->frags[i]; | |
3176 | ||
3177 | frag->page = page; | |
3178 | frag->page_offset = offset; | |
3179 | frag->size = size; | |
3180 | ||
3181 | skb->len += size; | |
3182 | skb->data_len += size; | |
3183 | skb->truesize += size; | |
3184 | ||
3185 | skb_shinfo(skb)->nr_frags = i + 1; | |
3186 | } | |
3187 | ||
3188 | static unsigned int niu_hash_rxaddr(struct rx_ring_info *rp, u64 a) | |
3189 | { | |
3190 | a >>= PAGE_SHIFT; | |
3191 | a ^= (a >> ilog2(MAX_RBR_RING_SIZE)); | |
3192 | ||
3193 | return (a & (MAX_RBR_RING_SIZE - 1)); | |
3194 | } | |
3195 | ||
3196 | static struct page *niu_find_rxpage(struct rx_ring_info *rp, u64 addr, | |
3197 | struct page ***link) | |
3198 | { | |
3199 | unsigned int h = niu_hash_rxaddr(rp, addr); | |
3200 | struct page *p, **pp; | |
3201 | ||
3202 | addr &= PAGE_MASK; | |
3203 | pp = &rp->rxhash[h]; | |
3204 | for (; (p = *pp) != NULL; pp = (struct page **) &p->mapping) { | |
3205 | if (p->index == addr) { | |
3206 | *link = pp; | |
3207 | break; | |
3208 | } | |
3209 | } | |
3210 | ||
3211 | return p; | |
3212 | } | |
3213 | ||
3214 | static void niu_hash_page(struct rx_ring_info *rp, struct page *page, u64 base) | |
3215 | { | |
3216 | unsigned int h = niu_hash_rxaddr(rp, base); | |
3217 | ||
3218 | page->index = base; | |
3219 | page->mapping = (struct address_space *) rp->rxhash[h]; | |
3220 | rp->rxhash[h] = page; | |
3221 | } | |
3222 | ||
3223 | static int niu_rbr_add_page(struct niu *np, struct rx_ring_info *rp, | |
3224 | gfp_t mask, int start_index) | |
3225 | { | |
3226 | struct page *page; | |
3227 | u64 addr; | |
3228 | int i; | |
3229 | ||
3230 | page = alloc_page(mask); | |
3231 | if (!page) | |
3232 | return -ENOMEM; | |
3233 | ||
3234 | addr = np->ops->map_page(np->device, page, 0, | |
3235 | PAGE_SIZE, DMA_FROM_DEVICE); | |
3236 | ||
3237 | niu_hash_page(rp, page, addr); | |
3238 | if (rp->rbr_blocks_per_page > 1) | |
3239 | atomic_add(rp->rbr_blocks_per_page - 1, | |
3240 | &compound_head(page)->_count); | |
3241 | ||
3242 | for (i = 0; i < rp->rbr_blocks_per_page; i++) { | |
3243 | __le32 *rbr = &rp->rbr[start_index + i]; | |
3244 | ||
3245 | *rbr = cpu_to_le32(addr >> RBR_DESCR_ADDR_SHIFT); | |
3246 | addr += rp->rbr_block_size; | |
3247 | } | |
3248 | ||
3249 | return 0; | |
3250 | } | |
3251 | ||
3252 | static void niu_rbr_refill(struct niu *np, struct rx_ring_info *rp, gfp_t mask) | |
3253 | { | |
3254 | int index = rp->rbr_index; | |
3255 | ||
3256 | rp->rbr_pending++; | |
3257 | if ((rp->rbr_pending % rp->rbr_blocks_per_page) == 0) { | |
3258 | int err = niu_rbr_add_page(np, rp, mask, index); | |
3259 | ||
3260 | if (unlikely(err)) { | |
3261 | rp->rbr_pending--; | |
3262 | return; | |
3263 | } | |
3264 | ||
3265 | rp->rbr_index += rp->rbr_blocks_per_page; | |
3266 | BUG_ON(rp->rbr_index > rp->rbr_table_size); | |
3267 | if (rp->rbr_index == rp->rbr_table_size) | |
3268 | rp->rbr_index = 0; | |
3269 | ||
3270 | if (rp->rbr_pending >= rp->rbr_kick_thresh) { | |
3271 | nw64(RBR_KICK(rp->rx_channel), rp->rbr_pending); | |
3272 | rp->rbr_pending = 0; | |
3273 | } | |
3274 | } | |
3275 | } | |
3276 | ||
3277 | static int niu_rx_pkt_ignore(struct niu *np, struct rx_ring_info *rp) | |
3278 | { | |
3279 | unsigned int index = rp->rcr_index; | |
3280 | int num_rcr = 0; | |
3281 | ||
3282 | rp->rx_dropped++; | |
3283 | while (1) { | |
3284 | struct page *page, **link; | |
3285 | u64 addr, val; | |
3286 | u32 rcr_size; | |
3287 | ||
3288 | num_rcr++; | |
3289 | ||
3290 | val = le64_to_cpup(&rp->rcr[index]); | |
3291 | addr = (val & RCR_ENTRY_PKT_BUF_ADDR) << | |
3292 | RCR_ENTRY_PKT_BUF_ADDR_SHIFT; | |
3293 | page = niu_find_rxpage(rp, addr, &link); | |
3294 | ||
3295 | rcr_size = rp->rbr_sizes[(val & RCR_ENTRY_PKTBUFSZ) >> | |
3296 | RCR_ENTRY_PKTBUFSZ_SHIFT]; | |
3297 | if ((page->index + PAGE_SIZE) - rcr_size == addr) { | |
3298 | *link = (struct page *) page->mapping; | |
3299 | np->ops->unmap_page(np->device, page->index, | |
3300 | PAGE_SIZE, DMA_FROM_DEVICE); | |
3301 | page->index = 0; | |
3302 | page->mapping = NULL; | |
3303 | __free_page(page); | |
3304 | rp->rbr_refill_pending++; | |
3305 | } | |
3306 | ||
3307 | index = NEXT_RCR(rp, index); | |
3308 | if (!(val & RCR_ENTRY_MULTI)) | |
3309 | break; | |
3310 | ||
3311 | } | |
3312 | rp->rcr_index = index; | |
3313 | ||
3314 | return num_rcr; | |
3315 | } | |
3316 | ||
3317 | static int niu_process_rx_pkt(struct niu *np, struct rx_ring_info *rp) | |
3318 | { | |
3319 | unsigned int index = rp->rcr_index; | |
3320 | struct sk_buff *skb; | |
3321 | int len, num_rcr; | |
3322 | ||
3323 | skb = netdev_alloc_skb(np->dev, RX_SKB_ALLOC_SIZE); | |
3324 | if (unlikely(!skb)) | |
3325 | return niu_rx_pkt_ignore(np, rp); | |
3326 | ||
3327 | num_rcr = 0; | |
3328 | while (1) { | |
3329 | struct page *page, **link; | |
3330 | u32 rcr_size, append_size; | |
3331 | u64 addr, val, off; | |
3332 | ||
3333 | num_rcr++; | |
3334 | ||
3335 | val = le64_to_cpup(&rp->rcr[index]); | |
3336 | ||
3337 | len = (val & RCR_ENTRY_L2_LEN) >> | |
3338 | RCR_ENTRY_L2_LEN_SHIFT; | |
3339 | len -= ETH_FCS_LEN; | |
3340 | ||
3341 | addr = (val & RCR_ENTRY_PKT_BUF_ADDR) << | |
3342 | RCR_ENTRY_PKT_BUF_ADDR_SHIFT; | |
3343 | page = niu_find_rxpage(rp, addr, &link); | |
3344 | ||
3345 | rcr_size = rp->rbr_sizes[(val & RCR_ENTRY_PKTBUFSZ) >> | |
3346 | RCR_ENTRY_PKTBUFSZ_SHIFT]; | |
3347 | ||
3348 | off = addr & ~PAGE_MASK; | |
3349 | append_size = rcr_size; | |
3350 | if (num_rcr == 1) { | |
3351 | int ptype; | |
3352 | ||
3353 | off += 2; | |
3354 | append_size -= 2; | |
3355 | ||
3356 | ptype = (val >> RCR_ENTRY_PKT_TYPE_SHIFT); | |
3357 | if ((ptype == RCR_PKT_TYPE_TCP || | |
3358 | ptype == RCR_PKT_TYPE_UDP) && | |
3359 | !(val & (RCR_ENTRY_NOPORT | | |
3360 | RCR_ENTRY_ERROR))) | |
3361 | skb->ip_summed = CHECKSUM_UNNECESSARY; | |
3362 | else | |
3363 | skb->ip_summed = CHECKSUM_NONE; | |
3364 | } | |
3365 | if (!(val & RCR_ENTRY_MULTI)) | |
3366 | append_size = len - skb->len; | |
3367 | ||
3368 | niu_rx_skb_append(skb, page, off, append_size); | |
3369 | if ((page->index + rp->rbr_block_size) - rcr_size == addr) { | |
3370 | *link = (struct page *) page->mapping; | |
3371 | np->ops->unmap_page(np->device, page->index, | |
3372 | PAGE_SIZE, DMA_FROM_DEVICE); | |
3373 | page->index = 0; | |
3374 | page->mapping = NULL; | |
3375 | rp->rbr_refill_pending++; | |
3376 | } else | |
3377 | get_page(page); | |
3378 | ||
3379 | index = NEXT_RCR(rp, index); | |
3380 | if (!(val & RCR_ENTRY_MULTI)) | |
3381 | break; | |
3382 | ||
3383 | } | |
3384 | rp->rcr_index = index; | |
3385 | ||
3386 | skb_reserve(skb, NET_IP_ALIGN); | |
3387 | __pskb_pull_tail(skb, min(len, NIU_RXPULL_MAX)); | |
3388 | ||
3389 | rp->rx_packets++; | |
3390 | rp->rx_bytes += skb->len; | |
3391 | ||
3392 | skb->protocol = eth_type_trans(skb, np->dev); | |
3393 | netif_receive_skb(skb); | |
3394 | ||
792dd90f DM |
3395 | np->dev->last_rx = jiffies; |
3396 | ||
a3138df9 DM |
3397 | return num_rcr; |
3398 | } | |
3399 | ||
3400 | static int niu_rbr_fill(struct niu *np, struct rx_ring_info *rp, gfp_t mask) | |
3401 | { | |
3402 | int blocks_per_page = rp->rbr_blocks_per_page; | |
3403 | int err, index = rp->rbr_index; | |
3404 | ||
3405 | err = 0; | |
3406 | while (index < (rp->rbr_table_size - blocks_per_page)) { | |
3407 | err = niu_rbr_add_page(np, rp, mask, index); | |
3408 | if (err) | |
3409 | break; | |
3410 | ||
3411 | index += blocks_per_page; | |
3412 | } | |
3413 | ||
3414 | rp->rbr_index = index; | |
3415 | return err; | |
3416 | } | |
3417 | ||
3418 | static void niu_rbr_free(struct niu *np, struct rx_ring_info *rp) | |
3419 | { | |
3420 | int i; | |
3421 | ||
3422 | for (i = 0; i < MAX_RBR_RING_SIZE; i++) { | |
3423 | struct page *page; | |
3424 | ||
3425 | page = rp->rxhash[i]; | |
3426 | while (page) { | |
3427 | struct page *next = (struct page *) page->mapping; | |
3428 | u64 base = page->index; | |
3429 | ||
3430 | np->ops->unmap_page(np->device, base, PAGE_SIZE, | |
3431 | DMA_FROM_DEVICE); | |
3432 | page->index = 0; | |
3433 | page->mapping = NULL; | |
3434 | ||
3435 | __free_page(page); | |
3436 | ||
3437 | page = next; | |
3438 | } | |
3439 | } | |
3440 | ||
3441 | for (i = 0; i < rp->rbr_table_size; i++) | |
3442 | rp->rbr[i] = cpu_to_le32(0); | |
3443 | rp->rbr_index = 0; | |
3444 | } | |
3445 | ||
3446 | static int release_tx_packet(struct niu *np, struct tx_ring_info *rp, int idx) | |
3447 | { | |
3448 | struct tx_buff_info *tb = &rp->tx_buffs[idx]; | |
3449 | struct sk_buff *skb = tb->skb; | |
3450 | struct tx_pkt_hdr *tp; | |
3451 | u64 tx_flags; | |
3452 | int i, len; | |
3453 | ||
3454 | tp = (struct tx_pkt_hdr *) skb->data; | |
3455 | tx_flags = le64_to_cpup(&tp->flags); | |
3456 | ||
3457 | rp->tx_packets++; | |
3458 | rp->tx_bytes += (((tx_flags & TXHDR_LEN) >> TXHDR_LEN_SHIFT) - | |
3459 | ((tx_flags & TXHDR_PAD) / 2)); | |
3460 | ||
3461 | len = skb_headlen(skb); | |
3462 | np->ops->unmap_single(np->device, tb->mapping, | |
3463 | len, DMA_TO_DEVICE); | |
3464 | ||
3465 | if (le64_to_cpu(rp->descr[idx]) & TX_DESC_MARK) | |
3466 | rp->mark_pending--; | |
3467 | ||
3468 | tb->skb = NULL; | |
3469 | do { | |
3470 | idx = NEXT_TX(rp, idx); | |
3471 | len -= MAX_TX_DESC_LEN; | |
3472 | } while (len > 0); | |
3473 | ||
3474 | for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) { | |
3475 | tb = &rp->tx_buffs[idx]; | |
3476 | BUG_ON(tb->skb != NULL); | |
3477 | np->ops->unmap_page(np->device, tb->mapping, | |
3478 | skb_shinfo(skb)->frags[i].size, | |
3479 | DMA_TO_DEVICE); | |
3480 | idx = NEXT_TX(rp, idx); | |
3481 | } | |
3482 | ||
3483 | dev_kfree_skb(skb); | |
3484 | ||
3485 | return idx; | |
3486 | } | |
3487 | ||
3488 | #define NIU_TX_WAKEUP_THRESH(rp) ((rp)->pending / 4) | |
3489 | ||
3490 | static void niu_tx_work(struct niu *np, struct tx_ring_info *rp) | |
3491 | { | |
b4c21639 | 3492 | struct netdev_queue *txq; |
a3138df9 | 3493 | u16 pkt_cnt, tmp; |
b4c21639 | 3494 | int cons, index; |
a3138df9 DM |
3495 | u64 cs; |
3496 | ||
b4c21639 DM |
3497 | index = (rp - np->tx_rings); |
3498 | txq = netdev_get_tx_queue(np->dev, index); | |
3499 | ||
a3138df9 DM |
3500 | cs = rp->tx_cs; |
3501 | if (unlikely(!(cs & (TX_CS_MK | TX_CS_MMK)))) | |
3502 | goto out; | |
3503 | ||
3504 | tmp = pkt_cnt = (cs & TX_CS_PKT_CNT) >> TX_CS_PKT_CNT_SHIFT; | |
3505 | pkt_cnt = (pkt_cnt - rp->last_pkt_cnt) & | |
3506 | (TX_CS_PKT_CNT >> TX_CS_PKT_CNT_SHIFT); | |
3507 | ||
3508 | rp->last_pkt_cnt = tmp; | |
3509 | ||
3510 | cons = rp->cons; | |
3511 | ||
3512 | niudbg(TX_DONE, "%s: niu_tx_work() pkt_cnt[%u] cons[%d]\n", | |
3513 | np->dev->name, pkt_cnt, cons); | |
3514 | ||
3515 | while (pkt_cnt--) | |
3516 | cons = release_tx_packet(np, rp, cons); | |
3517 | ||
3518 | rp->cons = cons; | |
3519 | smp_mb(); | |
3520 | ||
3521 | out: | |
b4c21639 | 3522 | if (unlikely(netif_tx_queue_stopped(txq) && |
a3138df9 | 3523 | (niu_tx_avail(rp) > NIU_TX_WAKEUP_THRESH(rp)))) { |
b4c21639 DM |
3524 | __netif_tx_lock(txq, smp_processor_id()); |
3525 | if (netif_tx_queue_stopped(txq) && | |
a3138df9 | 3526 | (niu_tx_avail(rp) > NIU_TX_WAKEUP_THRESH(rp))) |
b4c21639 DM |
3527 | netif_tx_wake_queue(txq); |
3528 | __netif_tx_unlock(txq); | |
a3138df9 DM |
3529 | } |
3530 | } | |
3531 | ||
3532 | static int niu_rx_work(struct niu *np, struct rx_ring_info *rp, int budget) | |
3533 | { | |
3534 | int qlen, rcr_done = 0, work_done = 0; | |
3535 | struct rxdma_mailbox *mbox = rp->mbox; | |
3536 | u64 stat; | |
3537 | ||
3538 | #if 1 | |
3539 | stat = nr64(RX_DMA_CTL_STAT(rp->rx_channel)); | |
3540 | qlen = nr64(RCRSTAT_A(rp->rx_channel)) & RCRSTAT_A_QLEN; | |
3541 | #else | |
3542 | stat = le64_to_cpup(&mbox->rx_dma_ctl_stat); | |
3543 | qlen = (le64_to_cpup(&mbox->rcrstat_a) & RCRSTAT_A_QLEN); | |
3544 | #endif | |
3545 | mbox->rx_dma_ctl_stat = 0; | |
3546 | mbox->rcrstat_a = 0; | |
3547 | ||
3548 | niudbg(RX_STATUS, "%s: niu_rx_work(chan[%d]), stat[%llx] qlen=%d\n", | |
3549 | np->dev->name, rp->rx_channel, (unsigned long long) stat, qlen); | |
3550 | ||
3551 | rcr_done = work_done = 0; | |
3552 | qlen = min(qlen, budget); | |
3553 | while (work_done < qlen) { | |
3554 | rcr_done += niu_process_rx_pkt(np, rp); | |
3555 | work_done++; | |
3556 | } | |
3557 | ||
3558 | if (rp->rbr_refill_pending >= rp->rbr_kick_thresh) { | |
3559 | unsigned int i; | |
3560 | ||
3561 | for (i = 0; i < rp->rbr_refill_pending; i++) | |
3562 | niu_rbr_refill(np, rp, GFP_ATOMIC); | |
3563 | rp->rbr_refill_pending = 0; | |
3564 | } | |
3565 | ||
3566 | stat = (RX_DMA_CTL_STAT_MEX | | |
3567 | ((u64)work_done << RX_DMA_CTL_STAT_PKTREAD_SHIFT) | | |
3568 | ((u64)rcr_done << RX_DMA_CTL_STAT_PTRREAD_SHIFT)); | |
3569 | ||
3570 | nw64(RX_DMA_CTL_STAT(rp->rx_channel), stat); | |
3571 | ||
3572 | return work_done; | |
3573 | } | |
3574 | ||
3575 | static int niu_poll_core(struct niu *np, struct niu_ldg *lp, int budget) | |
3576 | { | |
3577 | u64 v0 = lp->v0; | |
3578 | u32 tx_vec = (v0 >> 32); | |
3579 | u32 rx_vec = (v0 & 0xffffffff); | |
3580 | int i, work_done = 0; | |
3581 | ||
3582 | niudbg(INTR, "%s: niu_poll_core() v0[%016llx]\n", | |
3583 | np->dev->name, (unsigned long long) v0); | |
3584 | ||
3585 | for (i = 0; i < np->num_tx_rings; i++) { | |
3586 | struct tx_ring_info *rp = &np->tx_rings[i]; | |
3587 | if (tx_vec & (1 << rp->tx_channel)) | |
3588 | niu_tx_work(np, rp); | |
3589 | nw64(LD_IM0(LDN_TXDMA(rp->tx_channel)), 0); | |
3590 | } | |
3591 | ||
3592 | for (i = 0; i < np->num_rx_rings; i++) { | |
3593 | struct rx_ring_info *rp = &np->rx_rings[i]; | |
3594 | ||
3595 | if (rx_vec & (1 << rp->rx_channel)) { | |
3596 | int this_work_done; | |
3597 | ||
3598 | this_work_done = niu_rx_work(np, rp, | |
3599 | budget); | |
3600 | ||
3601 | budget -= this_work_done; | |
3602 | work_done += this_work_done; | |
3603 | } | |
3604 | nw64(LD_IM0(LDN_RXDMA(rp->rx_channel)), 0); | |
3605 | } | |
3606 | ||
3607 | return work_done; | |
3608 | } | |
3609 | ||
3610 | static int niu_poll(struct napi_struct *napi, int budget) | |
3611 | { | |
3612 | struct niu_ldg *lp = container_of(napi, struct niu_ldg, napi); | |
3613 | struct niu *np = lp->np; | |
3614 | int work_done; | |
3615 | ||
3616 | work_done = niu_poll_core(np, lp, budget); | |
3617 | ||
3618 | if (work_done < budget) { | |
3619 | netif_rx_complete(np->dev, napi); | |
3620 | niu_ldg_rearm(np, lp, 1); | |
3621 | } | |
3622 | return work_done; | |
3623 | } | |
3624 | ||
3625 | static void niu_log_rxchan_errors(struct niu *np, struct rx_ring_info *rp, | |
3626 | u64 stat) | |
3627 | { | |
3628 | dev_err(np->device, PFX "%s: RX channel %u errors ( ", | |
3629 | np->dev->name, rp->rx_channel); | |
3630 | ||
3631 | if (stat & RX_DMA_CTL_STAT_RBR_TMOUT) | |
3632 | printk("RBR_TMOUT "); | |
3633 | if (stat & RX_DMA_CTL_STAT_RSP_CNT_ERR) | |
3634 | printk("RSP_CNT "); | |
3635 | if (stat & RX_DMA_CTL_STAT_BYTE_EN_BUS) | |
3636 | printk("BYTE_EN_BUS "); | |
3637 | if (stat & RX_DMA_CTL_STAT_RSP_DAT_ERR) | |
3638 | printk("RSP_DAT "); | |
3639 | if (stat & RX_DMA_CTL_STAT_RCR_ACK_ERR) | |
3640 | printk("RCR_ACK "); | |
3641 | if (stat & RX_DMA_CTL_STAT_RCR_SHA_PAR) | |
3642 | printk("RCR_SHA_PAR "); | |
3643 | if (stat & RX_DMA_CTL_STAT_RBR_PRE_PAR) | |
3644 | printk("RBR_PRE_PAR "); | |
3645 | if (stat & RX_DMA_CTL_STAT_CONFIG_ERR) | |
3646 | printk("CONFIG "); | |
3647 | if (stat & RX_DMA_CTL_STAT_RCRINCON) | |
3648 | printk("RCRINCON "); | |
3649 | if (stat & RX_DMA_CTL_STAT_RCRFULL) | |
3650 | printk("RCRFULL "); | |
3651 | if (stat & RX_DMA_CTL_STAT_RBRFULL) | |
3652 | printk("RBRFULL "); | |
3653 | if (stat & RX_DMA_CTL_STAT_RBRLOGPAGE) | |
3654 | printk("RBRLOGPAGE "); | |
3655 | if (stat & RX_DMA_CTL_STAT_CFIGLOGPAGE) | |
3656 | printk("CFIGLOGPAGE "); | |
3657 | if (stat & RX_DMA_CTL_STAT_DC_FIFO_ERR) | |
3658 | printk("DC_FIDO "); | |
3659 | ||
3660 | printk(")\n"); | |
3661 | } | |
3662 | ||
3663 | static int niu_rx_error(struct niu *np, struct rx_ring_info *rp) | |
3664 | { | |
3665 | u64 stat = nr64(RX_DMA_CTL_STAT(rp->rx_channel)); | |
3666 | int err = 0; | |
3667 | ||
a3138df9 DM |
3668 | |
3669 | if (stat & (RX_DMA_CTL_STAT_CHAN_FATAL | | |
3670 | RX_DMA_CTL_STAT_PORT_FATAL)) | |
3671 | err = -EINVAL; | |
3672 | ||
406f353c MW |
3673 | if (err) { |
3674 | dev_err(np->device, PFX "%s: RX channel %u error, stat[%llx]\n", | |
3675 | np->dev->name, rp->rx_channel, | |
3676 | (unsigned long long) stat); | |
3677 | ||
3678 | niu_log_rxchan_errors(np, rp, stat); | |
3679 | } | |
3680 | ||
a3138df9 DM |
3681 | nw64(RX_DMA_CTL_STAT(rp->rx_channel), |
3682 | stat & RX_DMA_CTL_WRITE_CLEAR_ERRS); | |
3683 | ||
3684 | return err; | |
3685 | } | |
3686 | ||
3687 | static void niu_log_txchan_errors(struct niu *np, struct tx_ring_info *rp, | |
3688 | u64 cs) | |
3689 | { | |
3690 | dev_err(np->device, PFX "%s: TX channel %u errors ( ", | |
3691 | np->dev->name, rp->tx_channel); | |
3692 | ||
3693 | if (cs & TX_CS_MBOX_ERR) | |
3694 | printk("MBOX "); | |
3695 | if (cs & TX_CS_PKT_SIZE_ERR) | |
3696 | printk("PKT_SIZE "); | |
3697 | if (cs & TX_CS_TX_RING_OFLOW) | |
3698 | printk("TX_RING_OFLOW "); | |
3699 | if (cs & TX_CS_PREF_BUF_PAR_ERR) | |
3700 | printk("PREF_BUF_PAR "); | |
3701 | if (cs & TX_CS_NACK_PREF) | |
3702 | printk("NACK_PREF "); | |
3703 | if (cs & TX_CS_NACK_PKT_RD) | |
3704 | printk("NACK_PKT_RD "); | |
3705 | if (cs & TX_CS_CONF_PART_ERR) | |
3706 | printk("CONF_PART "); | |
3707 | if (cs & TX_CS_PKT_PRT_ERR) | |
3708 | printk("PKT_PTR "); | |
3709 | ||
3710 | printk(")\n"); | |
3711 | } | |
3712 | ||
3713 | static int niu_tx_error(struct niu *np, struct tx_ring_info *rp) | |
3714 | { | |
3715 | u64 cs, logh, logl; | |
3716 | ||
3717 | cs = nr64(TX_CS(rp->tx_channel)); | |
3718 | logh = nr64(TX_RNG_ERR_LOGH(rp->tx_channel)); | |
3719 | logl = nr64(TX_RNG_ERR_LOGL(rp->tx_channel)); | |
3720 | ||
3721 | dev_err(np->device, PFX "%s: TX channel %u error, " | |
3722 | "cs[%llx] logh[%llx] logl[%llx]\n", | |
3723 | np->dev->name, rp->tx_channel, | |
3724 | (unsigned long long) cs, | |
3725 | (unsigned long long) logh, | |
3726 | (unsigned long long) logl); | |
3727 | ||
3728 | niu_log_txchan_errors(np, rp, cs); | |
3729 | ||
3730 | return -ENODEV; | |
3731 | } | |
3732 | ||
3733 | static int niu_mif_interrupt(struct niu *np) | |
3734 | { | |
3735 | u64 mif_status = nr64(MIF_STATUS); | |
3736 | int phy_mdint = 0; | |
3737 | ||
3738 | if (np->flags & NIU_FLAGS_XMAC) { | |
3739 | u64 xrxmac_stat = nr64_mac(XRXMAC_STATUS); | |
3740 | ||
3741 | if (xrxmac_stat & XRXMAC_STATUS_PHY_MDINT) | |
3742 | phy_mdint = 1; | |
3743 | } | |
3744 | ||
3745 | dev_err(np->device, PFX "%s: MIF interrupt, " | |
3746 | "stat[%llx] phy_mdint(%d)\n", | |
3747 | np->dev->name, (unsigned long long) mif_status, phy_mdint); | |
3748 | ||
3749 | return -ENODEV; | |
3750 | } | |
3751 | ||
3752 | static void niu_xmac_interrupt(struct niu *np) | |
3753 | { | |
3754 | struct niu_xmac_stats *mp = &np->mac_stats.xmac; | |
3755 | u64 val; | |
3756 | ||
3757 | val = nr64_mac(XTXMAC_STATUS); | |
3758 | if (val & XTXMAC_STATUS_FRAME_CNT_EXP) | |
3759 | mp->tx_frames += TXMAC_FRM_CNT_COUNT; | |
3760 | if (val & XTXMAC_STATUS_BYTE_CNT_EXP) | |
3761 | mp->tx_bytes += TXMAC_BYTE_CNT_COUNT; | |
3762 | if (val & XTXMAC_STATUS_TXFIFO_XFR_ERR) | |
3763 | mp->tx_fifo_errors++; | |
3764 | if (val & XTXMAC_STATUS_TXMAC_OFLOW) | |
3765 | mp->tx_overflow_errors++; | |
3766 | if (val & XTXMAC_STATUS_MAX_PSIZE_ERR) | |
3767 | mp->tx_max_pkt_size_errors++; | |
3768 | if (val & XTXMAC_STATUS_TXMAC_UFLOW) | |
3769 | mp->tx_underflow_errors++; | |
3770 | ||
3771 | val = nr64_mac(XRXMAC_STATUS); | |
3772 | if (val & XRXMAC_STATUS_LCL_FLT_STATUS) | |
3773 | mp->rx_local_faults++; | |
3774 | if (val & XRXMAC_STATUS_RFLT_DET) | |
3775 | mp->rx_remote_faults++; | |
3776 | if (val & XRXMAC_STATUS_LFLT_CNT_EXP) | |
3777 | mp->rx_link_faults += LINK_FAULT_CNT_COUNT; | |
3778 | if (val & XRXMAC_STATUS_ALIGNERR_CNT_EXP) | |
3779 | mp->rx_align_errors += RXMAC_ALIGN_ERR_CNT_COUNT; | |
3780 | if (val & XRXMAC_STATUS_RXFRAG_CNT_EXP) | |
3781 | mp->rx_frags += RXMAC_FRAG_CNT_COUNT; | |
3782 | if (val & XRXMAC_STATUS_RXMULTF_CNT_EXP) | |
3783 | mp->rx_mcasts += RXMAC_MC_FRM_CNT_COUNT; | |
3784 | if (val & XRXMAC_STATUS_RXBCAST_CNT_EXP) | |
3785 | mp->rx_bcasts += RXMAC_BC_FRM_CNT_COUNT; | |
3786 | if (val & XRXMAC_STATUS_RXBCAST_CNT_EXP) | |
3787 | mp->rx_bcasts += RXMAC_BC_FRM_CNT_COUNT; | |
3788 | if (val & XRXMAC_STATUS_RXHIST1_CNT_EXP) | |
3789 | mp->rx_hist_cnt1 += RXMAC_HIST_CNT1_COUNT; | |
3790 | if (val & XRXMAC_STATUS_RXHIST2_CNT_EXP) | |
3791 | mp->rx_hist_cnt2 += RXMAC_HIST_CNT2_COUNT; | |
3792 | if (val & XRXMAC_STATUS_RXHIST3_CNT_EXP) | |
3793 | mp->rx_hist_cnt3 += RXMAC_HIST_CNT3_COUNT; | |
3794 | if (val & XRXMAC_STATUS_RXHIST4_CNT_EXP) | |
3795 | mp->rx_hist_cnt4 += RXMAC_HIST_CNT4_COUNT; | |
3796 | if (val & XRXMAC_STATUS_RXHIST5_CNT_EXP) | |
3797 | mp->rx_hist_cnt5 += RXMAC_HIST_CNT5_COUNT; | |
3798 | if (val & XRXMAC_STATUS_RXHIST6_CNT_EXP) | |
3799 | mp->rx_hist_cnt6 += RXMAC_HIST_CNT6_COUNT; | |
3800 | if (val & XRXMAC_STATUS_RXHIST7_CNT_EXP) | |
3801 | mp->rx_hist_cnt7 += RXMAC_HIST_CNT7_COUNT; | |
3802 | if (val & XRXMAC_STAT_MSK_RXOCTET_CNT_EXP) | |
3803 | mp->rx_octets += RXMAC_BT_CNT_COUNT; | |
3804 | if (val & XRXMAC_STATUS_CVIOLERR_CNT_EXP) | |
3805 | mp->rx_code_violations += RXMAC_CD_VIO_CNT_COUNT; | |
3806 | if (val & XRXMAC_STATUS_LENERR_CNT_EXP) | |
3807 | mp->rx_len_errors += RXMAC_MPSZER_CNT_COUNT; | |
3808 | if (val & XRXMAC_STATUS_CRCERR_CNT_EXP) | |
3809 | mp->rx_crc_errors += RXMAC_CRC_ER_CNT_COUNT; | |
3810 | if (val & XRXMAC_STATUS_RXUFLOW) | |
3811 | mp->rx_underflows++; | |
3812 | if (val & XRXMAC_STATUS_RXOFLOW) | |
3813 | mp->rx_overflows++; | |
3814 | ||
3815 | val = nr64_mac(XMAC_FC_STAT); | |
3816 | if (val & XMAC_FC_STAT_TX_MAC_NPAUSE) | |
3817 | mp->pause_off_state++; | |
3818 | if (val & XMAC_FC_STAT_TX_MAC_PAUSE) | |
3819 | mp->pause_on_state++; | |
3820 | if (val & XMAC_FC_STAT_RX_MAC_RPAUSE) | |
3821 | mp->pause_received++; | |
3822 | } | |
3823 | ||
3824 | static void niu_bmac_interrupt(struct niu *np) | |
3825 | { | |
3826 | struct niu_bmac_stats *mp = &np->mac_stats.bmac; | |
3827 | u64 val; | |
3828 | ||
3829 | val = nr64_mac(BTXMAC_STATUS); | |
3830 | if (val & BTXMAC_STATUS_UNDERRUN) | |
3831 | mp->tx_underflow_errors++; | |
3832 | if (val & BTXMAC_STATUS_MAX_PKT_ERR) | |
3833 | mp->tx_max_pkt_size_errors++; | |
3834 | if (val & BTXMAC_STATUS_BYTE_CNT_EXP) | |
3835 | mp->tx_bytes += BTXMAC_BYTE_CNT_COUNT; | |
3836 | if (val & BTXMAC_STATUS_FRAME_CNT_EXP) | |
3837 | mp->tx_frames += BTXMAC_FRM_CNT_COUNT; | |
3838 | ||
3839 | val = nr64_mac(BRXMAC_STATUS); | |
3840 | if (val & BRXMAC_STATUS_OVERFLOW) | |
3841 | mp->rx_overflows++; | |
3842 | if (val & BRXMAC_STATUS_FRAME_CNT_EXP) | |
3843 | mp->rx_frames += BRXMAC_FRAME_CNT_COUNT; | |
3844 | if (val & BRXMAC_STATUS_ALIGN_ERR_EXP) | |
3845 | mp->rx_align_errors += BRXMAC_ALIGN_ERR_CNT_COUNT; | |
3846 | if (val & BRXMAC_STATUS_CRC_ERR_EXP) | |
3847 | mp->rx_crc_errors += BRXMAC_ALIGN_ERR_CNT_COUNT; | |
3848 | if (val & BRXMAC_STATUS_LEN_ERR_EXP) | |
3849 | mp->rx_len_errors += BRXMAC_CODE_VIOL_ERR_CNT_COUNT; | |
3850 | ||
3851 | val = nr64_mac(BMAC_CTRL_STATUS); | |
3852 | if (val & BMAC_CTRL_STATUS_NOPAUSE) | |
3853 | mp->pause_off_state++; | |
3854 | if (val & BMAC_CTRL_STATUS_PAUSE) | |
3855 | mp->pause_on_state++; | |
3856 | if (val & BMAC_CTRL_STATUS_PAUSE_RECV) | |
3857 | mp->pause_received++; | |
3858 | } | |
3859 | ||
3860 | static int niu_mac_interrupt(struct niu *np) | |
3861 | { | |
3862 | if (np->flags & NIU_FLAGS_XMAC) | |
3863 | niu_xmac_interrupt(np); | |
3864 | else | |
3865 | niu_bmac_interrupt(np); | |
3866 | ||
3867 | return 0; | |
3868 | } | |
3869 | ||
3870 | static void niu_log_device_error(struct niu *np, u64 stat) | |
3871 | { | |
3872 | dev_err(np->device, PFX "%s: Core device errors ( ", | |
3873 | np->dev->name); | |
3874 | ||
3875 | if (stat & SYS_ERR_MASK_META2) | |
3876 | printk("META2 "); | |
3877 | if (stat & SYS_ERR_MASK_META1) | |
3878 | printk("META1 "); | |
3879 | if (stat & SYS_ERR_MASK_PEU) | |
3880 | printk("PEU "); | |
3881 | if (stat & SYS_ERR_MASK_TXC) | |
3882 | printk("TXC "); | |
3883 | if (stat & SYS_ERR_MASK_RDMC) | |
3884 | printk("RDMC "); | |
3885 | if (stat & SYS_ERR_MASK_TDMC) | |
3886 | printk("TDMC "); | |
3887 | if (stat & SYS_ERR_MASK_ZCP) | |
3888 | printk("ZCP "); | |
3889 | if (stat & SYS_ERR_MASK_FFLP) | |
3890 | printk("FFLP "); | |
3891 | if (stat & SYS_ERR_MASK_IPP) | |
3892 | printk("IPP "); | |
3893 | if (stat & SYS_ERR_MASK_MAC) | |
3894 | printk("MAC "); | |
3895 | if (stat & SYS_ERR_MASK_SMX) | |
3896 | printk("SMX "); | |
3897 | ||
3898 | printk(")\n"); | |
3899 | } | |
3900 | ||
3901 | static int niu_device_error(struct niu *np) | |
3902 | { | |
3903 | u64 stat = nr64(SYS_ERR_STAT); | |
3904 | ||
3905 | dev_err(np->device, PFX "%s: Core device error, stat[%llx]\n", | |
3906 | np->dev->name, (unsigned long long) stat); | |
3907 | ||
3908 | niu_log_device_error(np, stat); | |
3909 | ||
3910 | return -ENODEV; | |
3911 | } | |
3912 | ||
406f353c MW |
3913 | static int niu_slowpath_interrupt(struct niu *np, struct niu_ldg *lp, |
3914 | u64 v0, u64 v1, u64 v2) | |
a3138df9 | 3915 | { |
406f353c | 3916 | |
a3138df9 DM |
3917 | int i, err = 0; |
3918 | ||
406f353c MW |
3919 | lp->v0 = v0; |
3920 | lp->v1 = v1; | |
3921 | lp->v2 = v2; | |
3922 | ||
a3138df9 DM |
3923 | if (v1 & 0x00000000ffffffffULL) { |
3924 | u32 rx_vec = (v1 & 0xffffffff); | |
3925 | ||
3926 | for (i = 0; i < np->num_rx_rings; i++) { | |
3927 | struct rx_ring_info *rp = &np->rx_rings[i]; | |
3928 | ||
3929 | if (rx_vec & (1 << rp->rx_channel)) { | |
3930 | int r = niu_rx_error(np, rp); | |
406f353c | 3931 | if (r) { |
a3138df9 | 3932 | err = r; |
406f353c MW |
3933 | } else { |
3934 | if (!v0) | |
3935 | nw64(RX_DMA_CTL_STAT(rp->rx_channel), | |
3936 | RX_DMA_CTL_STAT_MEX); | |
3937 | } | |
a3138df9 DM |
3938 | } |
3939 | } | |
3940 | } | |
3941 | if (v1 & 0x7fffffff00000000ULL) { | |
3942 | u32 tx_vec = (v1 >> 32) & 0x7fffffff; | |
3943 | ||
3944 | for (i = 0; i < np->num_tx_rings; i++) { | |
3945 | struct tx_ring_info *rp = &np->tx_rings[i]; | |
3946 | ||
3947 | if (tx_vec & (1 << rp->tx_channel)) { | |
3948 | int r = niu_tx_error(np, rp); | |
3949 | if (r) | |
3950 | err = r; | |
3951 | } | |
3952 | } | |
3953 | } | |
3954 | if ((v0 | v1) & 0x8000000000000000ULL) { | |
3955 | int r = niu_mif_interrupt(np); | |
3956 | if (r) | |
3957 | err = r; | |
3958 | } | |
3959 | if (v2) { | |
3960 | if (v2 & 0x01ef) { | |
3961 | int r = niu_mac_interrupt(np); | |
3962 | if (r) | |
3963 | err = r; | |
3964 | } | |
3965 | if (v2 & 0x0210) { | |
3966 | int r = niu_device_error(np); | |
3967 | if (r) | |
3968 | err = r; | |
3969 | } | |
3970 | } | |
3971 | ||
3972 | if (err) | |
3973 | niu_enable_interrupts(np, 0); | |
3974 | ||
406f353c | 3975 | return err; |
a3138df9 DM |
3976 | } |
3977 | ||
3978 | static void niu_rxchan_intr(struct niu *np, struct rx_ring_info *rp, | |
3979 | int ldn) | |
3980 | { | |
3981 | struct rxdma_mailbox *mbox = rp->mbox; | |
3982 | u64 stat_write, stat = le64_to_cpup(&mbox->rx_dma_ctl_stat); | |
3983 | ||
3984 | stat_write = (RX_DMA_CTL_STAT_RCRTHRES | | |
3985 | RX_DMA_CTL_STAT_RCRTO); | |
3986 | nw64(RX_DMA_CTL_STAT(rp->rx_channel), stat_write); | |
3987 | ||
3988 | niudbg(INTR, "%s: rxchan_intr stat[%llx]\n", | |
3989 | np->dev->name, (unsigned long long) stat); | |
3990 | } | |
3991 | ||
3992 | static void niu_txchan_intr(struct niu *np, struct tx_ring_info *rp, | |
3993 | int ldn) | |
3994 | { | |
3995 | rp->tx_cs = nr64(TX_CS(rp->tx_channel)); | |
3996 | ||
3997 | niudbg(INTR, "%s: txchan_intr cs[%llx]\n", | |
3998 | np->dev->name, (unsigned long long) rp->tx_cs); | |
3999 | } | |
4000 | ||
4001 | static void __niu_fastpath_interrupt(struct niu *np, int ldg, u64 v0) | |
4002 | { | |
4003 | struct niu_parent *parent = np->parent; | |
4004 | u32 rx_vec, tx_vec; | |
4005 | int i; | |
4006 | ||
4007 | tx_vec = (v0 >> 32); | |
4008 | rx_vec = (v0 & 0xffffffff); | |
4009 | ||
4010 | for (i = 0; i < np->num_rx_rings; i++) { | |
4011 | struct rx_ring_info *rp = &np->rx_rings[i]; | |
4012 | int ldn = LDN_RXDMA(rp->rx_channel); | |
4013 | ||
4014 | if (parent->ldg_map[ldn] != ldg) | |
4015 | continue; | |
4016 | ||
4017 | nw64(LD_IM0(ldn), LD_IM0_MASK); | |
4018 | if (rx_vec & (1 << rp->rx_channel)) | |
4019 | niu_rxchan_intr(np, rp, ldn); | |
4020 | } | |
4021 | ||
4022 | for (i = 0; i < np->num_tx_rings; i++) { | |
4023 | struct tx_ring_info *rp = &np->tx_rings[i]; | |
4024 | int ldn = LDN_TXDMA(rp->tx_channel); | |
4025 | ||
4026 | if (parent->ldg_map[ldn] != ldg) | |
4027 | continue; | |
4028 | ||
4029 | nw64(LD_IM0(ldn), LD_IM0_MASK); | |
4030 | if (tx_vec & (1 << rp->tx_channel)) | |
4031 | niu_txchan_intr(np, rp, ldn); | |
4032 | } | |
4033 | } | |
4034 | ||
4035 | static void niu_schedule_napi(struct niu *np, struct niu_ldg *lp, | |
4036 | u64 v0, u64 v1, u64 v2) | |
4037 | { | |
4038 | if (likely(netif_rx_schedule_prep(np->dev, &lp->napi))) { | |
4039 | lp->v0 = v0; | |
4040 | lp->v1 = v1; | |
4041 | lp->v2 = v2; | |
4042 | __niu_fastpath_interrupt(np, lp->ldg_num, v0); | |
4043 | __netif_rx_schedule(np->dev, &lp->napi); | |
4044 | } | |
4045 | } | |
4046 | ||
4047 | static irqreturn_t niu_interrupt(int irq, void *dev_id) | |
4048 | { | |
4049 | struct niu_ldg *lp = dev_id; | |
4050 | struct niu *np = lp->np; | |
4051 | int ldg = lp->ldg_num; | |
4052 | unsigned long flags; | |
4053 | u64 v0, v1, v2; | |
4054 | ||
4055 | if (netif_msg_intr(np)) | |
4056 | printk(KERN_DEBUG PFX "niu_interrupt() ldg[%p](%d) ", | |
4057 | lp, ldg); | |
4058 | ||
4059 | spin_lock_irqsave(&np->lock, flags); | |
4060 | ||
4061 | v0 = nr64(LDSV0(ldg)); | |
4062 | v1 = nr64(LDSV1(ldg)); | |
4063 | v2 = nr64(LDSV2(ldg)); | |
4064 | ||
4065 | if (netif_msg_intr(np)) | |
4066 | printk("v0[%llx] v1[%llx] v2[%llx]\n", | |
4067 | (unsigned long long) v0, | |
4068 | (unsigned long long) v1, | |
4069 | (unsigned long long) v2); | |
4070 | ||
4071 | if (unlikely(!v0 && !v1 && !v2)) { | |
4072 | spin_unlock_irqrestore(&np->lock, flags); | |
4073 | return IRQ_NONE; | |
4074 | } | |
4075 | ||
4076 | if (unlikely((v0 & ((u64)1 << LDN_MIF)) || v1 || v2)) { | |
406f353c | 4077 | int err = niu_slowpath_interrupt(np, lp, v0, v1, v2); |
a3138df9 DM |
4078 | if (err) |
4079 | goto out; | |
4080 | } | |
4081 | if (likely(v0 & ~((u64)1 << LDN_MIF))) | |
4082 | niu_schedule_napi(np, lp, v0, v1, v2); | |
4083 | else | |
4084 | niu_ldg_rearm(np, lp, 1); | |
4085 | out: | |
4086 | spin_unlock_irqrestore(&np->lock, flags); | |
4087 | ||
4088 | return IRQ_HANDLED; | |
4089 | } | |
4090 | ||
4091 | static void niu_free_rx_ring_info(struct niu *np, struct rx_ring_info *rp) | |
4092 | { | |
4093 | if (rp->mbox) { | |
4094 | np->ops->free_coherent(np->device, | |
4095 | sizeof(struct rxdma_mailbox), | |
4096 | rp->mbox, rp->mbox_dma); | |
4097 | rp->mbox = NULL; | |
4098 | } | |
4099 | if (rp->rcr) { | |
4100 | np->ops->free_coherent(np->device, | |
4101 | MAX_RCR_RING_SIZE * sizeof(__le64), | |
4102 | rp->rcr, rp->rcr_dma); | |
4103 | rp->rcr = NULL; | |
4104 | rp->rcr_table_size = 0; | |
4105 | rp->rcr_index = 0; | |
4106 | } | |
4107 | if (rp->rbr) { | |
4108 | niu_rbr_free(np, rp); | |
4109 | ||
4110 | np->ops->free_coherent(np->device, | |
4111 | MAX_RBR_RING_SIZE * sizeof(__le32), | |
4112 | rp->rbr, rp->rbr_dma); | |
4113 | rp->rbr = NULL; | |
4114 | rp->rbr_table_size = 0; | |
4115 | rp->rbr_index = 0; | |
4116 | } | |
4117 | kfree(rp->rxhash); | |
4118 | rp->rxhash = NULL; | |
4119 | } | |
4120 | ||
4121 | static void niu_free_tx_ring_info(struct niu *np, struct tx_ring_info *rp) | |
4122 | { | |
4123 | if (rp->mbox) { | |
4124 | np->ops->free_coherent(np->device, | |
4125 | sizeof(struct txdma_mailbox), | |
4126 | rp->mbox, rp->mbox_dma); | |
4127 | rp->mbox = NULL; | |
4128 | } | |
4129 | if (rp->descr) { | |
4130 | int i; | |
4131 | ||
4132 | for (i = 0; i < MAX_TX_RING_SIZE; i++) { | |
4133 | if (rp->tx_buffs[i].skb) | |
4134 | (void) release_tx_packet(np, rp, i); | |
4135 | } | |
4136 | ||
4137 | np->ops->free_coherent(np->device, | |
4138 | MAX_TX_RING_SIZE * sizeof(__le64), | |
4139 | rp->descr, rp->descr_dma); | |
4140 | rp->descr = NULL; | |
4141 | rp->pending = 0; | |
4142 | rp->prod = 0; | |
4143 | rp->cons = 0; | |
4144 | rp->wrap_bit = 0; | |
4145 | } | |
4146 | } | |
4147 | ||
4148 | static void niu_free_channels(struct niu *np) | |
4149 | { | |
4150 | int i; | |
4151 | ||
4152 | if (np->rx_rings) { | |
4153 | for (i = 0; i < np->num_rx_rings; i++) { | |
4154 | struct rx_ring_info *rp = &np->rx_rings[i]; | |
4155 | ||
4156 | niu_free_rx_ring_info(np, rp); | |
4157 | } | |
4158 | kfree(np->rx_rings); | |
4159 | np->rx_rings = NULL; | |
4160 | np->num_rx_rings = 0; | |
4161 | } | |
4162 | ||
4163 | if (np->tx_rings) { | |
4164 | for (i = 0; i < np->num_tx_rings; i++) { | |
4165 | struct tx_ring_info *rp = &np->tx_rings[i]; | |
4166 | ||
4167 | niu_free_tx_ring_info(np, rp); | |
4168 | } | |
4169 | kfree(np->tx_rings); | |
4170 | np->tx_rings = NULL; | |
4171 | np->num_tx_rings = 0; | |
4172 | } | |
4173 | } | |
4174 | ||
4175 | static int niu_alloc_rx_ring_info(struct niu *np, | |
4176 | struct rx_ring_info *rp) | |
4177 | { | |
4178 | BUILD_BUG_ON(sizeof(struct rxdma_mailbox) != 64); | |
4179 | ||
4180 | rp->rxhash = kzalloc(MAX_RBR_RING_SIZE * sizeof(struct page *), | |
4181 | GFP_KERNEL); | |
4182 | if (!rp->rxhash) | |
4183 | return -ENOMEM; | |
4184 | ||
4185 | rp->mbox = np->ops->alloc_coherent(np->device, | |
4186 | sizeof(struct rxdma_mailbox), | |
4187 | &rp->mbox_dma, GFP_KERNEL); | |
4188 | if (!rp->mbox) | |
4189 | return -ENOMEM; | |
4190 | if ((unsigned long)rp->mbox & (64UL - 1)) { | |
4191 | dev_err(np->device, PFX "%s: Coherent alloc gives misaligned " | |
4192 | "RXDMA mailbox %p\n", np->dev->name, rp->mbox); | |
4193 | return -EINVAL; | |
4194 | } | |
4195 | ||
4196 | rp->rcr = np->ops->alloc_coherent(np->device, | |
4197 | MAX_RCR_RING_SIZE * sizeof(__le64), | |
4198 | &rp->rcr_dma, GFP_KERNEL); | |
4199 | if (!rp->rcr) | |
4200 | return -ENOMEM; | |
4201 | if ((unsigned long)rp->rcr & (64UL - 1)) { | |
4202 | dev_err(np->device, PFX "%s: Coherent alloc gives misaligned " | |
4203 | "RXDMA RCR table %p\n", np->dev->name, rp->rcr); | |
4204 | return -EINVAL; | |
4205 | } | |
4206 | rp->rcr_table_size = MAX_RCR_RING_SIZE; | |
4207 | rp->rcr_index = 0; | |
4208 | ||
4209 | rp->rbr = np->ops->alloc_coherent(np->device, | |
4210 | MAX_RBR_RING_SIZE * sizeof(__le32), | |
4211 | &rp->rbr_dma, GFP_KERNEL); | |
4212 | if (!rp->rbr) | |
4213 | return -ENOMEM; | |
4214 | if ((unsigned long)rp->rbr & (64UL - 1)) { | |
4215 | dev_err(np->device, PFX "%s: Coherent alloc gives misaligned " | |
4216 | "RXDMA RBR table %p\n", np->dev->name, rp->rbr); | |
4217 | return -EINVAL; | |
4218 | } | |
4219 | rp->rbr_table_size = MAX_RBR_RING_SIZE; | |
4220 | rp->rbr_index = 0; | |
4221 | rp->rbr_pending = 0; | |
4222 | ||
4223 | return 0; | |
4224 | } | |
4225 | ||
4226 | static void niu_set_max_burst(struct niu *np, struct tx_ring_info *rp) | |
4227 | { | |
4228 | int mtu = np->dev->mtu; | |
4229 | ||
4230 | /* These values are recommended by the HW designers for fair | |
4231 | * utilization of DRR amongst the rings. | |
4232 | */ | |
4233 | rp->max_burst = mtu + 32; | |
4234 | if (rp->max_burst > 4096) | |
4235 | rp->max_burst = 4096; | |
4236 | } | |
4237 | ||
4238 | static int niu_alloc_tx_ring_info(struct niu *np, | |
4239 | struct tx_ring_info *rp) | |
4240 | { | |
4241 | BUILD_BUG_ON(sizeof(struct txdma_mailbox) != 64); | |
4242 | ||
4243 | rp->mbox = np->ops->alloc_coherent(np->device, | |
4244 | sizeof(struct txdma_mailbox), | |
4245 | &rp->mbox_dma, GFP_KERNEL); | |
4246 | if (!rp->mbox) | |
4247 | return -ENOMEM; | |
4248 | if ((unsigned long)rp->mbox & (64UL - 1)) { | |
4249 | dev_err(np->device, PFX "%s: Coherent alloc gives misaligned " | |
4250 | "TXDMA mailbox %p\n", np->dev->name, rp->mbox); | |
4251 | return -EINVAL; | |
4252 | } | |
4253 | ||
4254 | rp->descr = np->ops->alloc_coherent(np->device, | |
4255 | MAX_TX_RING_SIZE * sizeof(__le64), | |
4256 | &rp->descr_dma, GFP_KERNEL); | |
4257 | if (!rp->descr) | |
4258 | return -ENOMEM; | |
4259 | if ((unsigned long)rp->descr & (64UL - 1)) { | |
4260 | dev_err(np->device, PFX "%s: Coherent alloc gives misaligned " | |
4261 | "TXDMA descr table %p\n", np->dev->name, rp->descr); | |
4262 | return -EINVAL; | |
4263 | } | |
4264 | ||
4265 | rp->pending = MAX_TX_RING_SIZE; | |
4266 | rp->prod = 0; | |
4267 | rp->cons = 0; | |
4268 | rp->wrap_bit = 0; | |
4269 | ||
4270 | /* XXX make these configurable... XXX */ | |
4271 | rp->mark_freq = rp->pending / 4; | |
4272 | ||
4273 | niu_set_max_burst(np, rp); | |
4274 | ||
4275 | return 0; | |
4276 | } | |
4277 | ||
4278 | static void niu_size_rbr(struct niu *np, struct rx_ring_info *rp) | |
4279 | { | |
81429973 | 4280 | u16 bss; |
a3138df9 | 4281 | |
81429973 | 4282 | bss = min(PAGE_SHIFT, 15); |
a3138df9 | 4283 | |
81429973 OJ |
4284 | rp->rbr_block_size = 1 << bss; |
4285 | rp->rbr_blocks_per_page = 1 << (PAGE_SHIFT-bss); | |
a3138df9 DM |
4286 | |
4287 | rp->rbr_sizes[0] = 256; | |
4288 | rp->rbr_sizes[1] = 1024; | |
4289 | if (np->dev->mtu > ETH_DATA_LEN) { | |
4290 | switch (PAGE_SIZE) { | |
4291 | case 4 * 1024: | |
4292 | rp->rbr_sizes[2] = 4096; | |
4293 | break; | |
4294 | ||
4295 | default: | |
4296 | rp->rbr_sizes[2] = 8192; | |
4297 | break; | |
4298 | } | |
4299 | } else { | |
4300 | rp->rbr_sizes[2] = 2048; | |
4301 | } | |
4302 | rp->rbr_sizes[3] = rp->rbr_block_size; | |
4303 | } | |
4304 | ||
4305 | static int niu_alloc_channels(struct niu *np) | |
4306 | { | |
4307 | struct niu_parent *parent = np->parent; | |
4308 | int first_rx_channel, first_tx_channel; | |
4309 | int i, port, err; | |
4310 | ||
4311 | port = np->port; | |
4312 | first_rx_channel = first_tx_channel = 0; | |
4313 | for (i = 0; i < port; i++) { | |
4314 | first_rx_channel += parent->rxchan_per_port[i]; | |
4315 | first_tx_channel += parent->txchan_per_port[i]; | |
4316 | } | |
4317 | ||
4318 | np->num_rx_rings = parent->rxchan_per_port[port]; | |
4319 | np->num_tx_rings = parent->txchan_per_port[port]; | |
4320 | ||
b4c21639 DM |
4321 | np->dev->real_num_tx_queues = np->num_tx_rings; |
4322 | ||
a3138df9 DM |
4323 | np->rx_rings = kzalloc(np->num_rx_rings * sizeof(struct rx_ring_info), |
4324 | GFP_KERNEL); | |
4325 | err = -ENOMEM; | |
4326 | if (!np->rx_rings) | |
4327 | goto out_err; | |
4328 | ||
4329 | for (i = 0; i < np->num_rx_rings; i++) { | |
4330 | struct rx_ring_info *rp = &np->rx_rings[i]; | |
4331 | ||
4332 | rp->np = np; | |
4333 | rp->rx_channel = first_rx_channel + i; | |
4334 | ||
4335 | err = niu_alloc_rx_ring_info(np, rp); | |
4336 | if (err) | |
4337 | goto out_err; | |
4338 | ||
4339 | niu_size_rbr(np, rp); | |
4340 | ||
4341 | /* XXX better defaults, configurable, etc... XXX */ | |
4342 | rp->nonsyn_window = 64; | |
4343 | rp->nonsyn_threshold = rp->rcr_table_size - 64; | |
4344 | rp->syn_window = 64; | |
4345 | rp->syn_threshold = rp->rcr_table_size - 64; | |
4346 | rp->rcr_pkt_threshold = 16; | |
4347 | rp->rcr_timeout = 8; | |
4348 | rp->rbr_kick_thresh = RBR_REFILL_MIN; | |
4349 | if (rp->rbr_kick_thresh < rp->rbr_blocks_per_page) | |
4350 | rp->rbr_kick_thresh = rp->rbr_blocks_per_page; | |
4351 | ||
4352 | err = niu_rbr_fill(np, rp, GFP_KERNEL); | |
4353 | if (err) | |
4354 | return err; | |
4355 | } | |
4356 | ||
4357 | np->tx_rings = kzalloc(np->num_tx_rings * sizeof(struct tx_ring_info), | |
4358 | GFP_KERNEL); | |
4359 | err = -ENOMEM; | |
4360 | if (!np->tx_rings) | |
4361 | goto out_err; | |
4362 | ||
4363 | for (i = 0; i < np->num_tx_rings; i++) { | |
4364 | struct tx_ring_info *rp = &np->tx_rings[i]; | |
4365 | ||
4366 | rp->np = np; | |
4367 | rp->tx_channel = first_tx_channel + i; | |
4368 | ||
4369 | err = niu_alloc_tx_ring_info(np, rp); | |
4370 | if (err) | |
4371 | goto out_err; | |
4372 | } | |
4373 | ||
4374 | return 0; | |
4375 | ||
4376 | out_err: | |
4377 | niu_free_channels(np); | |
4378 | return err; | |
4379 | } | |
4380 | ||
4381 | static int niu_tx_cs_sng_poll(struct niu *np, int channel) | |
4382 | { | |
4383 | int limit = 1000; | |
4384 | ||
4385 | while (--limit > 0) { | |
4386 | u64 val = nr64(TX_CS(channel)); | |
4387 | if (val & TX_CS_SNG_STATE) | |
4388 | return 0; | |
4389 | } | |
4390 | return -ENODEV; | |
4391 | } | |
4392 | ||
4393 | static int niu_tx_channel_stop(struct niu *np, int channel) | |
4394 | { | |
4395 | u64 val = nr64(TX_CS(channel)); | |
4396 | ||
4397 | val |= TX_CS_STOP_N_GO; | |
4398 | nw64(TX_CS(channel), val); | |
4399 | ||
4400 | return niu_tx_cs_sng_poll(np, channel); | |
4401 | } | |
4402 | ||
4403 | static int niu_tx_cs_reset_poll(struct niu *np, int channel) | |
4404 | { | |
4405 | int limit = 1000; | |
4406 | ||
4407 | while (--limit > 0) { | |
4408 | u64 val = nr64(TX_CS(channel)); | |
4409 | if (!(val & TX_CS_RST)) | |
4410 | return 0; | |
4411 | } | |
4412 | return -ENODEV; | |
4413 | } | |
4414 | ||
4415 | static int niu_tx_channel_reset(struct niu *np, int channel) | |
4416 | { | |
4417 | u64 val = nr64(TX_CS(channel)); | |
4418 | int err; | |
4419 | ||
4420 | val |= TX_CS_RST; | |
4421 | nw64(TX_CS(channel), val); | |
4422 | ||
4423 | err = niu_tx_cs_reset_poll(np, channel); | |
4424 | if (!err) | |
4425 | nw64(TX_RING_KICK(channel), 0); | |
4426 | ||
4427 | return err; | |
4428 | } | |
4429 | ||
4430 | static int niu_tx_channel_lpage_init(struct niu *np, int channel) | |
4431 | { | |
4432 | u64 val; | |
4433 | ||
4434 | nw64(TX_LOG_MASK1(channel), 0); | |
4435 | nw64(TX_LOG_VAL1(channel), 0); | |
4436 | nw64(TX_LOG_MASK2(channel), 0); | |
4437 | nw64(TX_LOG_VAL2(channel), 0); | |
4438 | nw64(TX_LOG_PAGE_RELO1(channel), 0); | |
4439 | nw64(TX_LOG_PAGE_RELO2(channel), 0); | |
4440 | nw64(TX_LOG_PAGE_HDL(channel), 0); | |
4441 | ||
4442 | val = (u64)np->port << TX_LOG_PAGE_VLD_FUNC_SHIFT; | |
4443 | val |= (TX_LOG_PAGE_VLD_PAGE0 | TX_LOG_PAGE_VLD_PAGE1); | |
4444 | nw64(TX_LOG_PAGE_VLD(channel), val); | |
4445 | ||
4446 | /* XXX TXDMA 32bit mode? XXX */ | |
4447 | ||
4448 | return 0; | |
4449 | } | |
4450 | ||
4451 | static void niu_txc_enable_port(struct niu *np, int on) | |
4452 | { | |
4453 | unsigned long flags; | |
4454 | u64 val, mask; | |
4455 | ||
4456 | niu_lock_parent(np, flags); | |
4457 | val = nr64(TXC_CONTROL); | |
4458 | mask = (u64)1 << np->port; | |
4459 | if (on) { | |
4460 | val |= TXC_CONTROL_ENABLE | mask; | |
4461 | } else { | |
4462 | val &= ~mask; | |
4463 | if ((val & ~TXC_CONTROL_ENABLE) == 0) | |
4464 | val &= ~TXC_CONTROL_ENABLE; | |
4465 | } | |
4466 | nw64(TXC_CONTROL, val); | |
4467 | niu_unlock_parent(np, flags); | |
4468 | } | |
4469 | ||
4470 | static void niu_txc_set_imask(struct niu *np, u64 imask) | |
4471 | { | |
4472 | unsigned long flags; | |
4473 | u64 val; | |
4474 | ||
4475 | niu_lock_parent(np, flags); | |
4476 | val = nr64(TXC_INT_MASK); | |
4477 | val &= ~TXC_INT_MASK_VAL(np->port); | |
4478 | val |= (imask << TXC_INT_MASK_VAL_SHIFT(np->port)); | |
4479 | niu_unlock_parent(np, flags); | |
4480 | } | |
4481 | ||
4482 | static void niu_txc_port_dma_enable(struct niu *np, int on) | |
4483 | { | |
4484 | u64 val = 0; | |
4485 | ||
4486 | if (on) { | |
4487 | int i; | |
4488 | ||
4489 | for (i = 0; i < np->num_tx_rings; i++) | |
4490 | val |= (1 << np->tx_rings[i].tx_channel); | |
4491 | } | |
4492 | nw64(TXC_PORT_DMA(np->port), val); | |
4493 | } | |
4494 | ||
4495 | static int niu_init_one_tx_channel(struct niu *np, struct tx_ring_info *rp) | |
4496 | { | |
4497 | int err, channel = rp->tx_channel; | |
4498 | u64 val, ring_len; | |
4499 | ||
4500 | err = niu_tx_channel_stop(np, channel); | |
4501 | if (err) | |
4502 | return err; | |
4503 | ||
4504 | err = niu_tx_channel_reset(np, channel); | |
4505 | if (err) | |
4506 | return err; | |
4507 | ||
4508 | err = niu_tx_channel_lpage_init(np, channel); | |
4509 | if (err) | |
4510 | return err; | |
4511 | ||
4512 | nw64(TXC_DMA_MAX(channel), rp->max_burst); | |
4513 | nw64(TX_ENT_MSK(channel), 0); | |
4514 | ||
4515 | if (rp->descr_dma & ~(TX_RNG_CFIG_STADDR_BASE | | |
4516 | TX_RNG_CFIG_STADDR)) { | |
4517 | dev_err(np->device, PFX "%s: TX ring channel %d " | |
4518 | "DMA addr (%llx) is not aligned.\n", | |
4519 | np->dev->name, channel, | |
4520 | (unsigned long long) rp->descr_dma); | |
4521 | return -EINVAL; | |
4522 | } | |
4523 | ||
4524 | /* The length field in TX_RNG_CFIG is measured in 64-byte | |
4525 | * blocks. rp->pending is the number of TX descriptors in | |
4526 | * our ring, 8 bytes each, thus we divide by 8 bytes more | |
4527 | * to get the proper value the chip wants. | |
4528 | */ | |
4529 | ring_len = (rp->pending / 8); | |
4530 | ||
4531 | val = ((ring_len << TX_RNG_CFIG_LEN_SHIFT) | | |
4532 | rp->descr_dma); | |
4533 | nw64(TX_RNG_CFIG(channel), val); | |
4534 | ||
4535 | if (((rp->mbox_dma >> 32) & ~TXDMA_MBH_MBADDR) || | |
4536 | ((u32)rp->mbox_dma & ~TXDMA_MBL_MBADDR)) { | |
4537 | dev_err(np->device, PFX "%s: TX ring channel %d " | |
4538 | "MBOX addr (%llx) is has illegal bits.\n", | |
4539 | np->dev->name, channel, | |
4540 | (unsigned long long) rp->mbox_dma); | |
4541 | return -EINVAL; | |
4542 | } | |
4543 | nw64(TXDMA_MBH(channel), rp->mbox_dma >> 32); | |
4544 | nw64(TXDMA_MBL(channel), rp->mbox_dma & TXDMA_MBL_MBADDR); | |
4545 | ||
4546 | nw64(TX_CS(channel), 0); | |
4547 | ||
4548 | rp->last_pkt_cnt = 0; | |
4549 | ||
4550 | return 0; | |
4551 | } | |
4552 | ||
4553 | static void niu_init_rdc_groups(struct niu *np) | |
4554 | { | |
4555 | struct niu_rdc_tables *tp = &np->parent->rdc_group_cfg[np->port]; | |
4556 | int i, first_table_num = tp->first_table_num; | |
4557 | ||
4558 | for (i = 0; i < tp->num_tables; i++) { | |
4559 | struct rdc_table *tbl = &tp->tables[i]; | |
4560 | int this_table = first_table_num + i; | |
4561 | int slot; | |
4562 | ||
4563 | for (slot = 0; slot < NIU_RDC_TABLE_SLOTS; slot++) | |
4564 | nw64(RDC_TBL(this_table, slot), | |
4565 | tbl->rxdma_channel[slot]); | |
4566 | } | |
4567 | ||
4568 | nw64(DEF_RDC(np->port), np->parent->rdc_default[np->port]); | |
4569 | } | |
4570 | ||
4571 | static void niu_init_drr_weight(struct niu *np) | |
4572 | { | |
4573 | int type = phy_decode(np->parent->port_phy, np->port); | |
4574 | u64 val; | |
4575 | ||
4576 | switch (type) { | |
4577 | case PORT_TYPE_10G: | |
4578 | val = PT_DRR_WEIGHT_DEFAULT_10G; | |
4579 | break; | |
4580 | ||
4581 | case PORT_TYPE_1G: | |
4582 | default: | |
4583 | val = PT_DRR_WEIGHT_DEFAULT_1G; | |
4584 | break; | |
4585 | } | |
4586 | nw64(PT_DRR_WT(np->port), val); | |
4587 | } | |
4588 | ||
4589 | static int niu_init_hostinfo(struct niu *np) | |
4590 | { | |
4591 | struct niu_parent *parent = np->parent; | |
4592 | struct niu_rdc_tables *tp = &parent->rdc_group_cfg[np->port]; | |
4593 | int i, err, num_alt = niu_num_alt_addr(np); | |
4594 | int first_rdc_table = tp->first_table_num; | |
4595 | ||
4596 | err = niu_set_primary_mac_rdc_table(np, first_rdc_table, 1); | |
4597 | if (err) | |
4598 | return err; | |
4599 | ||
4600 | err = niu_set_multicast_mac_rdc_table(np, first_rdc_table, 1); | |
4601 | if (err) | |
4602 | return err; | |
4603 | ||
4604 | for (i = 0; i < num_alt; i++) { | |
4605 | err = niu_set_alt_mac_rdc_table(np, i, first_rdc_table, 1); | |
4606 | if (err) | |
4607 | return err; | |
4608 | } | |
4609 | ||
4610 | return 0; | |
4611 | } | |
4612 | ||
4613 | static int niu_rx_channel_reset(struct niu *np, int channel) | |
4614 | { | |
4615 | return niu_set_and_wait_clear(np, RXDMA_CFIG1(channel), | |
4616 | RXDMA_CFIG1_RST, 1000, 10, | |
4617 | "RXDMA_CFIG1"); | |
4618 | } | |
4619 | ||
4620 | static int niu_rx_channel_lpage_init(struct niu *np, int channel) | |
4621 | { | |
4622 | u64 val; | |
4623 | ||
4624 | nw64(RX_LOG_MASK1(channel), 0); | |
4625 | nw64(RX_LOG_VAL1(channel), 0); | |
4626 | nw64(RX_LOG_MASK2(channel), 0); | |
4627 | nw64(RX_LOG_VAL2(channel), 0); | |
4628 | nw64(RX_LOG_PAGE_RELO1(channel), 0); | |
4629 | nw64(RX_LOG_PAGE_RELO2(channel), 0); | |
4630 | nw64(RX_LOG_PAGE_HDL(channel), 0); | |
4631 | ||
4632 | val = (u64)np->port << RX_LOG_PAGE_VLD_FUNC_SHIFT; | |
4633 | val |= (RX_LOG_PAGE_VLD_PAGE0 | RX_LOG_PAGE_VLD_PAGE1); | |
4634 | nw64(RX_LOG_PAGE_VLD(channel), val); | |
4635 | ||
4636 | return 0; | |
4637 | } | |
4638 | ||
4639 | static void niu_rx_channel_wred_init(struct niu *np, struct rx_ring_info *rp) | |
4640 | { | |
4641 | u64 val; | |
4642 | ||
4643 | val = (((u64)rp->nonsyn_window << RDC_RED_PARA_WIN_SHIFT) | | |
4644 | ((u64)rp->nonsyn_threshold << RDC_RED_PARA_THRE_SHIFT) | | |
4645 | ((u64)rp->syn_window << RDC_RED_PARA_WIN_SYN_SHIFT) | | |
4646 | ((u64)rp->syn_threshold << RDC_RED_PARA_THRE_SYN_SHIFT)); | |
4647 | nw64(RDC_RED_PARA(rp->rx_channel), val); | |
4648 | } | |
4649 | ||
4650 | static int niu_compute_rbr_cfig_b(struct rx_ring_info *rp, u64 *ret) | |
4651 | { | |
4652 | u64 val = 0; | |
4653 | ||
4654 | switch (rp->rbr_block_size) { | |
4655 | case 4 * 1024: | |
4656 | val |= (RBR_BLKSIZE_4K << RBR_CFIG_B_BLKSIZE_SHIFT); | |
4657 | break; | |
4658 | case 8 * 1024: | |
4659 | val |= (RBR_BLKSIZE_8K << RBR_CFIG_B_BLKSIZE_SHIFT); | |
4660 | break; | |
4661 | case 16 * 1024: | |
4662 | val |= (RBR_BLKSIZE_16K << RBR_CFIG_B_BLKSIZE_SHIFT); | |
4663 | break; | |
4664 | case 32 * 1024: | |
4665 | val |= (RBR_BLKSIZE_32K << RBR_CFIG_B_BLKSIZE_SHIFT); | |
4666 | break; | |
4667 | default: | |
4668 | return -EINVAL; | |
4669 | } | |
4670 | val |= RBR_CFIG_B_VLD2; | |
4671 | switch (rp->rbr_sizes[2]) { | |
4672 | case 2 * 1024: | |
4673 | val |= (RBR_BUFSZ2_2K << RBR_CFIG_B_BUFSZ2_SHIFT); | |
4674 | break; | |
4675 | case 4 * 1024: | |
4676 | val |= (RBR_BUFSZ2_4K << RBR_CFIG_B_BUFSZ2_SHIFT); | |
4677 | break; | |
4678 | case 8 * 1024: | |
4679 | val |= (RBR_BUFSZ2_8K << RBR_CFIG_B_BUFSZ2_SHIFT); | |
4680 | break; | |
4681 | case 16 * 1024: | |
4682 | val |= (RBR_BUFSZ2_16K << RBR_CFIG_B_BUFSZ2_SHIFT); | |
4683 | break; | |
4684 | ||
4685 | default: | |
4686 | return -EINVAL; | |
4687 | } | |
4688 | val |= RBR_CFIG_B_VLD1; | |
4689 | switch (rp->rbr_sizes[1]) { | |
4690 | case 1 * 1024: | |
4691 | val |= (RBR_BUFSZ1_1K << RBR_CFIG_B_BUFSZ1_SHIFT); | |
4692 | break; | |
4693 | case 2 * 1024: | |
4694 | val |= (RBR_BUFSZ1_2K << RBR_CFIG_B_BUFSZ1_SHIFT); | |
4695 | break; | |
4696 | case 4 * 1024: | |
4697 | val |= (RBR_BUFSZ1_4K << RBR_CFIG_B_BUFSZ1_SHIFT); | |
4698 | break; | |
4699 | case 8 * 1024: | |
4700 | val |= (RBR_BUFSZ1_8K << RBR_CFIG_B_BUFSZ1_SHIFT); | |
4701 | break; | |
4702 | ||
4703 | default: | |
4704 | return -EINVAL; | |
4705 | } | |
4706 | val |= RBR_CFIG_B_VLD0; | |
4707 | switch (rp->rbr_sizes[0]) { | |
4708 | case 256: | |
4709 | val |= (RBR_BUFSZ0_256 << RBR_CFIG_B_BUFSZ0_SHIFT); | |
4710 | break; | |
4711 | case 512: | |
4712 | val |= (RBR_BUFSZ0_512 << RBR_CFIG_B_BUFSZ0_SHIFT); | |
4713 | break; | |
4714 | case 1 * 1024: | |
4715 | val |= (RBR_BUFSZ0_1K << RBR_CFIG_B_BUFSZ0_SHIFT); | |
4716 | break; | |
4717 | case 2 * 1024: | |
4718 | val |= (RBR_BUFSZ0_2K << RBR_CFIG_B_BUFSZ0_SHIFT); | |
4719 | break; | |
4720 | ||
4721 | default: | |
4722 | return -EINVAL; | |
4723 | } | |
4724 | ||
4725 | *ret = val; | |
4726 | return 0; | |
4727 | } | |
4728 | ||
4729 | static int niu_enable_rx_channel(struct niu *np, int channel, int on) | |
4730 | { | |
4731 | u64 val = nr64(RXDMA_CFIG1(channel)); | |
4732 | int limit; | |
4733 | ||
4734 | if (on) | |
4735 | val |= RXDMA_CFIG1_EN; | |
4736 | else | |
4737 | val &= ~RXDMA_CFIG1_EN; | |
4738 | nw64(RXDMA_CFIG1(channel), val); | |
4739 | ||
4740 | limit = 1000; | |
4741 | while (--limit > 0) { | |
4742 | if (nr64(RXDMA_CFIG1(channel)) & RXDMA_CFIG1_QST) | |
4743 | break; | |
4744 | udelay(10); | |
4745 | } | |
4746 | if (limit <= 0) | |
4747 | return -ENODEV; | |
4748 | return 0; | |
4749 | } | |
4750 | ||
4751 | static int niu_init_one_rx_channel(struct niu *np, struct rx_ring_info *rp) | |
4752 | { | |
4753 | int err, channel = rp->rx_channel; | |
4754 | u64 val; | |
4755 | ||
4756 | err = niu_rx_channel_reset(np, channel); | |
4757 | if (err) | |
4758 | return err; | |
4759 | ||
4760 | err = niu_rx_channel_lpage_init(np, channel); | |
4761 | if (err) | |
4762 | return err; | |
4763 | ||
4764 | niu_rx_channel_wred_init(np, rp); | |
4765 | ||
4766 | nw64(RX_DMA_ENT_MSK(channel), RX_DMA_ENT_MSK_RBR_EMPTY); | |
4767 | nw64(RX_DMA_CTL_STAT(channel), | |
4768 | (RX_DMA_CTL_STAT_MEX | | |
4769 | RX_DMA_CTL_STAT_RCRTHRES | | |
4770 | RX_DMA_CTL_STAT_RCRTO | | |
4771 | RX_DMA_CTL_STAT_RBR_EMPTY)); | |
4772 | nw64(RXDMA_CFIG1(channel), rp->mbox_dma >> 32); | |
4773 | nw64(RXDMA_CFIG2(channel), (rp->mbox_dma & 0x00000000ffffffc0)); | |
4774 | nw64(RBR_CFIG_A(channel), | |
4775 | ((u64)rp->rbr_table_size << RBR_CFIG_A_LEN_SHIFT) | | |
4776 | (rp->rbr_dma & (RBR_CFIG_A_STADDR_BASE | RBR_CFIG_A_STADDR))); | |
4777 | err = niu_compute_rbr_cfig_b(rp, &val); | |
4778 | if (err) | |
4779 | return err; | |
4780 | nw64(RBR_CFIG_B(channel), val); | |
4781 | nw64(RCRCFIG_A(channel), | |
4782 | ((u64)rp->rcr_table_size << RCRCFIG_A_LEN_SHIFT) | | |
4783 | (rp->rcr_dma & (RCRCFIG_A_STADDR_BASE | RCRCFIG_A_STADDR))); | |
4784 | nw64(RCRCFIG_B(channel), | |
4785 | ((u64)rp->rcr_pkt_threshold << RCRCFIG_B_PTHRES_SHIFT) | | |
4786 | RCRCFIG_B_ENTOUT | | |
4787 | ((u64)rp->rcr_timeout << RCRCFIG_B_TIMEOUT_SHIFT)); | |
4788 | ||
4789 | err = niu_enable_rx_channel(np, channel, 1); | |
4790 | if (err) | |
4791 | return err; | |
4792 | ||
4793 | nw64(RBR_KICK(channel), rp->rbr_index); | |
4794 | ||
4795 | val = nr64(RX_DMA_CTL_STAT(channel)); | |
4796 | val |= RX_DMA_CTL_STAT_RBR_EMPTY; | |
4797 | nw64(RX_DMA_CTL_STAT(channel), val); | |
4798 | ||
4799 | return 0; | |
4800 | } | |
4801 | ||
4802 | static int niu_init_rx_channels(struct niu *np) | |
4803 | { | |
4804 | unsigned long flags; | |
4805 | u64 seed = jiffies_64; | |
4806 | int err, i; | |
4807 | ||
4808 | niu_lock_parent(np, flags); | |
4809 | nw64(RX_DMA_CK_DIV, np->parent->rxdma_clock_divider); | |
4810 | nw64(RED_RAN_INIT, RED_RAN_INIT_OPMODE | (seed & RED_RAN_INIT_VAL)); | |
4811 | niu_unlock_parent(np, flags); | |
4812 | ||
4813 | /* XXX RXDMA 32bit mode? XXX */ | |
4814 | ||
4815 | niu_init_rdc_groups(np); | |
4816 | niu_init_drr_weight(np); | |
4817 | ||
4818 | err = niu_init_hostinfo(np); | |
4819 | if (err) | |
4820 | return err; | |
4821 | ||
4822 | for (i = 0; i < np->num_rx_rings; i++) { | |
4823 | struct rx_ring_info *rp = &np->rx_rings[i]; | |
4824 | ||
4825 | err = niu_init_one_rx_channel(np, rp); | |
4826 | if (err) | |
4827 | return err; | |
4828 | } | |
4829 | ||
4830 | return 0; | |
4831 | } | |
4832 | ||
4833 | static int niu_set_ip_frag_rule(struct niu *np) | |
4834 | { | |
4835 | struct niu_parent *parent = np->parent; | |
4836 | struct niu_classifier *cp = &np->clas; | |
4837 | struct niu_tcam_entry *tp; | |
4838 | int index, err; | |
4839 | ||
4840 | /* XXX fix this allocation scheme XXX */ | |
4841 | index = cp->tcam_index; | |
4842 | tp = &parent->tcam[index]; | |
4843 | ||
4844 | /* Note that the noport bit is the same in both ipv4 and | |
4845 | * ipv6 format TCAM entries. | |
4846 | */ | |
4847 | memset(tp, 0, sizeof(*tp)); | |
4848 | tp->key[1] = TCAM_V4KEY1_NOPORT; | |
4849 | tp->key_mask[1] = TCAM_V4KEY1_NOPORT; | |
4850 | tp->assoc_data = (TCAM_ASSOCDATA_TRES_USE_OFFSET | | |
4851 | ((u64)0 << TCAM_ASSOCDATA_OFFSET_SHIFT)); | |
4852 | err = tcam_write(np, index, tp->key, tp->key_mask); | |
4853 | if (err) | |
4854 | return err; | |
4855 | err = tcam_assoc_write(np, index, tp->assoc_data); | |
4856 | if (err) | |
4857 | return err; | |
4858 | ||
4859 | return 0; | |
4860 | } | |
4861 | ||
4862 | static int niu_init_classifier_hw(struct niu *np) | |
4863 | { | |
4864 | struct niu_parent *parent = np->parent; | |
4865 | struct niu_classifier *cp = &np->clas; | |
4866 | int i, err; | |
4867 | ||
4868 | nw64(H1POLY, cp->h1_init); | |
4869 | nw64(H2POLY, cp->h2_init); | |
4870 | ||
4871 | err = niu_init_hostinfo(np); | |
4872 | if (err) | |
4873 | return err; | |
4874 | ||
4875 | for (i = 0; i < ENET_VLAN_TBL_NUM_ENTRIES; i++) { | |
4876 | struct niu_vlan_rdc *vp = &cp->vlan_mappings[i]; | |
4877 | ||
4878 | vlan_tbl_write(np, i, np->port, | |
4879 | vp->vlan_pref, vp->rdc_num); | |
4880 | } | |
4881 | ||
4882 | for (i = 0; i < cp->num_alt_mac_mappings; i++) { | |
4883 | struct niu_altmac_rdc *ap = &cp->alt_mac_mappings[i]; | |
4884 | ||
4885 | err = niu_set_alt_mac_rdc_table(np, ap->alt_mac_num, | |
4886 | ap->rdc_num, ap->mac_pref); | |
4887 | if (err) | |
4888 | return err; | |
4889 | } | |
4890 | ||
4891 | for (i = CLASS_CODE_USER_PROG1; i <= CLASS_CODE_SCTP_IPV6; i++) { | |
4892 | int index = i - CLASS_CODE_USER_PROG1; | |
4893 | ||
4894 | err = niu_set_tcam_key(np, i, parent->tcam_key[index]); | |
4895 | if (err) | |
4896 | return err; | |
4897 | err = niu_set_flow_key(np, i, parent->flow_key[index]); | |
4898 | if (err) | |
4899 | return err; | |
4900 | } | |
4901 | ||
4902 | err = niu_set_ip_frag_rule(np); | |
4903 | if (err) | |
4904 | return err; | |
4905 | ||
4906 | tcam_enable(np, 1); | |
4907 | ||
4908 | return 0; | |
4909 | } | |
4910 | ||
4911 | static int niu_zcp_write(struct niu *np, int index, u64 *data) | |
4912 | { | |
4913 | nw64(ZCP_RAM_DATA0, data[0]); | |
4914 | nw64(ZCP_RAM_DATA1, data[1]); | |
4915 | nw64(ZCP_RAM_DATA2, data[2]); | |
4916 | nw64(ZCP_RAM_DATA3, data[3]); | |
4917 | nw64(ZCP_RAM_DATA4, data[4]); | |
4918 | nw64(ZCP_RAM_BE, ZCP_RAM_BE_VAL); | |
4919 | nw64(ZCP_RAM_ACC, | |
4920 | (ZCP_RAM_ACC_WRITE | | |
4921 | (0 << ZCP_RAM_ACC_ZFCID_SHIFT) | | |
4922 | (ZCP_RAM_SEL_CFIFO(np->port) << ZCP_RAM_ACC_RAM_SEL_SHIFT))); | |
4923 | ||
4924 | return niu_wait_bits_clear(np, ZCP_RAM_ACC, ZCP_RAM_ACC_BUSY, | |
4925 | 1000, 100); | |
4926 | } | |
4927 | ||
4928 | static int niu_zcp_read(struct niu *np, int index, u64 *data) | |
4929 | { | |
4930 | int err; | |
4931 | ||
4932 | err = niu_wait_bits_clear(np, ZCP_RAM_ACC, ZCP_RAM_ACC_BUSY, | |
4933 | 1000, 100); | |
4934 | if (err) { | |
4935 | dev_err(np->device, PFX "%s: ZCP read busy won't clear, " | |
4936 | "ZCP_RAM_ACC[%llx]\n", np->dev->name, | |
4937 | (unsigned long long) nr64(ZCP_RAM_ACC)); | |
4938 | return err; | |
4939 | } | |
4940 | ||
4941 | nw64(ZCP_RAM_ACC, | |
4942 | (ZCP_RAM_ACC_READ | | |
4943 | (0 << ZCP_RAM_ACC_ZFCID_SHIFT) | | |
4944 | (ZCP_RAM_SEL_CFIFO(np->port) << ZCP_RAM_ACC_RAM_SEL_SHIFT))); | |
4945 | ||
4946 | err = niu_wait_bits_clear(np, ZCP_RAM_ACC, ZCP_RAM_ACC_BUSY, | |
4947 | 1000, 100); | |
4948 | if (err) { | |
4949 | dev_err(np->device, PFX "%s: ZCP read busy2 won't clear, " | |
4950 | "ZCP_RAM_ACC[%llx]\n", np->dev->name, | |
4951 | (unsigned long long) nr64(ZCP_RAM_ACC)); | |
4952 | return err; | |
4953 | } | |
4954 | ||
4955 | data[0] = nr64(ZCP_RAM_DATA0); | |
4956 | data[1] = nr64(ZCP_RAM_DATA1); | |
4957 | data[2] = nr64(ZCP_RAM_DATA2); | |
4958 | data[3] = nr64(ZCP_RAM_DATA3); | |
4959 | data[4] = nr64(ZCP_RAM_DATA4); | |
4960 | ||
4961 | return 0; | |
4962 | } | |
4963 | ||
4964 | static void niu_zcp_cfifo_reset(struct niu *np) | |
4965 | { | |
4966 | u64 val = nr64(RESET_CFIFO); | |
4967 | ||
4968 | val |= RESET_CFIFO_RST(np->port); | |
4969 | nw64(RESET_CFIFO, val); | |
4970 | udelay(10); | |
4971 | ||
4972 | val &= ~RESET_CFIFO_RST(np->port); | |
4973 | nw64(RESET_CFIFO, val); | |
4974 | } | |
4975 | ||
4976 | static int niu_init_zcp(struct niu *np) | |
4977 | { | |
4978 | u64 data[5], rbuf[5]; | |
4979 | int i, max, err; | |
4980 | ||
4981 | if (np->parent->plat_type != PLAT_TYPE_NIU) { | |
4982 | if (np->port == 0 || np->port == 1) | |
4983 | max = ATLAS_P0_P1_CFIFO_ENTRIES; | |
4984 | else | |
4985 | max = ATLAS_P2_P3_CFIFO_ENTRIES; | |
4986 | } else | |
4987 | max = NIU_CFIFO_ENTRIES; | |
4988 | ||
4989 | data[0] = 0; | |
4990 | data[1] = 0; | |
4991 | data[2] = 0; | |
4992 | data[3] = 0; | |
4993 | data[4] = 0; | |
4994 | ||
4995 | for (i = 0; i < max; i++) { | |
4996 | err = niu_zcp_write(np, i, data); | |
4997 | if (err) | |
4998 | return err; | |
4999 | err = niu_zcp_read(np, i, rbuf); | |
5000 | if (err) | |
5001 | return err; | |
5002 | } | |
5003 | ||
5004 | niu_zcp_cfifo_reset(np); | |
5005 | nw64(CFIFO_ECC(np->port), 0); | |
5006 | nw64(ZCP_INT_STAT, ZCP_INT_STAT_ALL); | |
5007 | (void) nr64(ZCP_INT_STAT); | |
5008 | nw64(ZCP_INT_MASK, ZCP_INT_MASK_ALL); | |
5009 | ||
5010 | return 0; | |
5011 | } | |
5012 | ||
5013 | static void niu_ipp_write(struct niu *np, int index, u64 *data) | |
5014 | { | |
5015 | u64 val = nr64_ipp(IPP_CFIG); | |
5016 | ||
5017 | nw64_ipp(IPP_CFIG, val | IPP_CFIG_DFIFO_PIO_W); | |
5018 | nw64_ipp(IPP_DFIFO_WR_PTR, index); | |
5019 | nw64_ipp(IPP_DFIFO_WR0, data[0]); | |
5020 | nw64_ipp(IPP_DFIFO_WR1, data[1]); | |
5021 | nw64_ipp(IPP_DFIFO_WR2, data[2]); | |
5022 | nw64_ipp(IPP_DFIFO_WR3, data[3]); | |
5023 | nw64_ipp(IPP_DFIFO_WR4, data[4]); | |
5024 | nw64_ipp(IPP_CFIG, val & ~IPP_CFIG_DFIFO_PIO_W); | |
5025 | } | |
5026 | ||
5027 | static void niu_ipp_read(struct niu *np, int index, u64 *data) | |
5028 | { | |
5029 | nw64_ipp(IPP_DFIFO_RD_PTR, index); | |
5030 | data[0] = nr64_ipp(IPP_DFIFO_RD0); | |
5031 | data[1] = nr64_ipp(IPP_DFIFO_RD1); | |
5032 | data[2] = nr64_ipp(IPP_DFIFO_RD2); | |
5033 | data[3] = nr64_ipp(IPP_DFIFO_RD3); | |
5034 | data[4] = nr64_ipp(IPP_DFIFO_RD4); | |
5035 | } | |
5036 | ||
5037 | static int niu_ipp_reset(struct niu *np) | |
5038 | { | |
5039 | return niu_set_and_wait_clear_ipp(np, IPP_CFIG, IPP_CFIG_SOFT_RST, | |
5040 | 1000, 100, "IPP_CFIG"); | |
5041 | } | |
5042 | ||
5043 | static int niu_init_ipp(struct niu *np) | |
5044 | { | |
5045 | u64 data[5], rbuf[5], val; | |
5046 | int i, max, err; | |
5047 | ||
5048 | if (np->parent->plat_type != PLAT_TYPE_NIU) { | |
5049 | if (np->port == 0 || np->port == 1) | |
5050 | max = ATLAS_P0_P1_DFIFO_ENTRIES; | |
5051 | else | |
5052 | max = ATLAS_P2_P3_DFIFO_ENTRIES; | |
5053 | } else | |
5054 | max = NIU_DFIFO_ENTRIES; | |
5055 | ||
5056 | data[0] = 0; | |
5057 | data[1] = 0; | |
5058 | data[2] = 0; | |
5059 | data[3] = 0; | |
5060 | data[4] = 0; | |
5061 | ||
5062 | for (i = 0; i < max; i++) { | |
5063 | niu_ipp_write(np, i, data); | |
5064 | niu_ipp_read(np, i, rbuf); | |
5065 | } | |
5066 | ||
5067 | (void) nr64_ipp(IPP_INT_STAT); | |
5068 | (void) nr64_ipp(IPP_INT_STAT); | |
5069 | ||
5070 | err = niu_ipp_reset(np); | |
5071 | if (err) | |
5072 | return err; | |
5073 | ||
5074 | (void) nr64_ipp(IPP_PKT_DIS); | |
5075 | (void) nr64_ipp(IPP_BAD_CS_CNT); | |
5076 | (void) nr64_ipp(IPP_ECC); | |
5077 | ||
5078 | (void) nr64_ipp(IPP_INT_STAT); | |
5079 | ||
5080 | nw64_ipp(IPP_MSK, ~IPP_MSK_ALL); | |
5081 | ||
5082 | val = nr64_ipp(IPP_CFIG); | |
5083 | val &= ~IPP_CFIG_IP_MAX_PKT; | |
5084 | val |= (IPP_CFIG_IPP_ENABLE | | |
5085 | IPP_CFIG_DFIFO_ECC_EN | | |
5086 | IPP_CFIG_DROP_BAD_CRC | | |
5087 | IPP_CFIG_CKSUM_EN | | |
5088 | (0x1ffff << IPP_CFIG_IP_MAX_PKT_SHIFT)); | |
5089 | nw64_ipp(IPP_CFIG, val); | |
5090 | ||
5091 | return 0; | |
5092 | } | |
5093 | ||
0c3b091b | 5094 | static void niu_handle_led(struct niu *np, int status) |
a3138df9 | 5095 | { |
a3138df9 | 5096 | u64 val; |
a3138df9 DM |
5097 | val = nr64_mac(XMAC_CONFIG); |
5098 | ||
5099 | if ((np->flags & NIU_FLAGS_10G) != 0 && | |
5100 | (np->flags & NIU_FLAGS_FIBER) != 0) { | |
0c3b091b | 5101 | if (status) { |
a3138df9 DM |
5102 | val |= XMAC_CONFIG_LED_POLARITY; |
5103 | val &= ~XMAC_CONFIG_FORCE_LED_ON; | |
5104 | } else { | |
5105 | val |= XMAC_CONFIG_FORCE_LED_ON; | |
5106 | val &= ~XMAC_CONFIG_LED_POLARITY; | |
5107 | } | |
5108 | } | |
5109 | ||
0c3b091b ML |
5110 | nw64_mac(XMAC_CONFIG, val); |
5111 | } | |
5112 | ||
5113 | static void niu_init_xif_xmac(struct niu *np) | |
5114 | { | |
5115 | struct niu_link_config *lp = &np->link_config; | |
5116 | u64 val; | |
5117 | ||
5fbd7e24 MW |
5118 | if (np->flags & NIU_FLAGS_XCVR_SERDES) { |
5119 | val = nr64(MIF_CONFIG); | |
5120 | val |= MIF_CONFIG_ATCA_GE; | |
5121 | nw64(MIF_CONFIG, val); | |
5122 | } | |
5123 | ||
0c3b091b | 5124 | val = nr64_mac(XMAC_CONFIG); |
a3138df9 DM |
5125 | val &= ~XMAC_CONFIG_SEL_POR_CLK_SRC; |
5126 | ||
5127 | val |= XMAC_CONFIG_TX_OUTPUT_EN; | |
5128 | ||
5129 | if (lp->loopback_mode == LOOPBACK_MAC) { | |
5130 | val &= ~XMAC_CONFIG_SEL_POR_CLK_SRC; | |
5131 | val |= XMAC_CONFIG_LOOPBACK; | |
5132 | } else { | |
5133 | val &= ~XMAC_CONFIG_LOOPBACK; | |
5134 | } | |
5135 | ||
5136 | if (np->flags & NIU_FLAGS_10G) { | |
5137 | val &= ~XMAC_CONFIG_LFS_DISABLE; | |
5138 | } else { | |
5139 | val |= XMAC_CONFIG_LFS_DISABLE; | |
5fbd7e24 MW |
5140 | if (!(np->flags & NIU_FLAGS_FIBER) && |
5141 | !(np->flags & NIU_FLAGS_XCVR_SERDES)) | |
a3138df9 DM |
5142 | val |= XMAC_CONFIG_1G_PCS_BYPASS; |
5143 | else | |
5144 | val &= ~XMAC_CONFIG_1G_PCS_BYPASS; | |
5145 | } | |
5146 | ||
5147 | val &= ~XMAC_CONFIG_10G_XPCS_BYPASS; | |
5148 | ||
5149 | if (lp->active_speed == SPEED_100) | |
5150 | val |= XMAC_CONFIG_SEL_CLK_25MHZ; | |
5151 | else | |
5152 | val &= ~XMAC_CONFIG_SEL_CLK_25MHZ; | |
5153 | ||
5154 | nw64_mac(XMAC_CONFIG, val); | |
5155 | ||
5156 | val = nr64_mac(XMAC_CONFIG); | |
5157 | val &= ~XMAC_CONFIG_MODE_MASK; | |
5158 | if (np->flags & NIU_FLAGS_10G) { | |
5159 | val |= XMAC_CONFIG_MODE_XGMII; | |
5160 | } else { | |
5161 | if (lp->active_speed == SPEED_100) | |
5162 | val |= XMAC_CONFIG_MODE_MII; | |
5163 | else | |
5164 | val |= XMAC_CONFIG_MODE_GMII; | |
5165 | } | |
5166 | ||
5167 | nw64_mac(XMAC_CONFIG, val); | |
5168 | } | |
5169 | ||
5170 | static void niu_init_xif_bmac(struct niu *np) | |
5171 | { | |
5172 | struct niu_link_config *lp = &np->link_config; | |
5173 | u64 val; | |
5174 | ||
5175 | val = BMAC_XIF_CONFIG_TX_OUTPUT_EN; | |
5176 | ||
5177 | if (lp->loopback_mode == LOOPBACK_MAC) | |
5178 | val |= BMAC_XIF_CONFIG_MII_LOOPBACK; | |
5179 | else | |
5180 | val &= ~BMAC_XIF_CONFIG_MII_LOOPBACK; | |
5181 | ||
5182 | if (lp->active_speed == SPEED_1000) | |
5183 | val |= BMAC_XIF_CONFIG_GMII_MODE; | |
5184 | else | |
5185 | val &= ~BMAC_XIF_CONFIG_GMII_MODE; | |
5186 | ||
5187 | val &= ~(BMAC_XIF_CONFIG_LINK_LED | | |
5188 | BMAC_XIF_CONFIG_LED_POLARITY); | |
5189 | ||
5190 | if (!(np->flags & NIU_FLAGS_10G) && | |
5191 | !(np->flags & NIU_FLAGS_FIBER) && | |
5192 | lp->active_speed == SPEED_100) | |
5193 | val |= BMAC_XIF_CONFIG_25MHZ_CLOCK; | |
5194 | else | |
5195 | val &= ~BMAC_XIF_CONFIG_25MHZ_CLOCK; | |
5196 | ||
5197 | nw64_mac(BMAC_XIF_CONFIG, val); | |
5198 | } | |
5199 | ||
5200 | static void niu_init_xif(struct niu *np) | |
5201 | { | |
5202 | if (np->flags & NIU_FLAGS_XMAC) | |
5203 | niu_init_xif_xmac(np); | |
5204 | else | |
5205 | niu_init_xif_bmac(np); | |
5206 | } | |
5207 | ||
5208 | static void niu_pcs_mii_reset(struct niu *np) | |
5209 | { | |
5fbd7e24 | 5210 | int limit = 1000; |
a3138df9 DM |
5211 | u64 val = nr64_pcs(PCS_MII_CTL); |
5212 | val |= PCS_MII_CTL_RST; | |
5213 | nw64_pcs(PCS_MII_CTL, val); | |
5fbd7e24 MW |
5214 | while ((--limit >= 0) && (val & PCS_MII_CTL_RST)) { |
5215 | udelay(100); | |
5216 | val = nr64_pcs(PCS_MII_CTL); | |
5217 | } | |
a3138df9 DM |
5218 | } |
5219 | ||
5220 | static void niu_xpcs_reset(struct niu *np) | |
5221 | { | |
5fbd7e24 | 5222 | int limit = 1000; |
a3138df9 DM |
5223 | u64 val = nr64_xpcs(XPCS_CONTROL1); |
5224 | val |= XPCS_CONTROL1_RESET; | |
5225 | nw64_xpcs(XPCS_CONTROL1, val); | |
5fbd7e24 MW |
5226 | while ((--limit >= 0) && (val & XPCS_CONTROL1_RESET)) { |
5227 | udelay(100); | |
5228 | val = nr64_xpcs(XPCS_CONTROL1); | |
5229 | } | |
a3138df9 DM |
5230 | } |
5231 | ||
5232 | static int niu_init_pcs(struct niu *np) | |
5233 | { | |
5234 | struct niu_link_config *lp = &np->link_config; | |
5235 | u64 val; | |
5236 | ||
5fbd7e24 MW |
5237 | switch (np->flags & (NIU_FLAGS_10G | |
5238 | NIU_FLAGS_FIBER | | |
5239 | NIU_FLAGS_XCVR_SERDES)) { | |
a3138df9 DM |
5240 | case NIU_FLAGS_FIBER: |
5241 | /* 1G fiber */ | |
5242 | nw64_pcs(PCS_CONF, PCS_CONF_MASK | PCS_CONF_ENABLE); | |
5243 | nw64_pcs(PCS_DPATH_MODE, 0); | |
5244 | niu_pcs_mii_reset(np); | |
5245 | break; | |
5246 | ||
5247 | case NIU_FLAGS_10G: | |
5248 | case NIU_FLAGS_10G | NIU_FLAGS_FIBER: | |
5fbd7e24 MW |
5249 | case NIU_FLAGS_10G | NIU_FLAGS_XCVR_SERDES: |
5250 | /* 10G SERDES */ | |
a3138df9 DM |
5251 | if (!(np->flags & NIU_FLAGS_XMAC)) |
5252 | return -EINVAL; | |
5253 | ||
5254 | /* 10G copper or fiber */ | |
5255 | val = nr64_mac(XMAC_CONFIG); | |
5256 | val &= ~XMAC_CONFIG_10G_XPCS_BYPASS; | |
5257 | nw64_mac(XMAC_CONFIG, val); | |
5258 | ||
5259 | niu_xpcs_reset(np); | |
5260 | ||
5261 | val = nr64_xpcs(XPCS_CONTROL1); | |
5262 | if (lp->loopback_mode == LOOPBACK_PHY) | |
5263 | val |= XPCS_CONTROL1_LOOPBACK; | |
5264 | else | |
5265 | val &= ~XPCS_CONTROL1_LOOPBACK; | |
5266 | nw64_xpcs(XPCS_CONTROL1, val); | |
5267 | ||
5268 | nw64_xpcs(XPCS_DESKEW_ERR_CNT, 0); | |
5269 | (void) nr64_xpcs(XPCS_SYMERR_CNT01); | |
5270 | (void) nr64_xpcs(XPCS_SYMERR_CNT23); | |
5271 | break; | |
5272 | ||
5fbd7e24 MW |
5273 | |
5274 | case NIU_FLAGS_XCVR_SERDES: | |
5275 | /* 1G SERDES */ | |
5276 | niu_pcs_mii_reset(np); | |
5277 | nw64_pcs(PCS_CONF, PCS_CONF_MASK | PCS_CONF_ENABLE); | |
5278 | nw64_pcs(PCS_DPATH_MODE, 0); | |
5279 | break; | |
5280 | ||
a3138df9 DM |
5281 | case 0: |
5282 | /* 1G copper */ | |
5fbd7e24 MW |
5283 | case NIU_FLAGS_XCVR_SERDES | NIU_FLAGS_FIBER: |
5284 | /* 1G RGMII FIBER */ | |
a3138df9 DM |
5285 | nw64_pcs(PCS_DPATH_MODE, PCS_DPATH_MODE_MII); |
5286 | niu_pcs_mii_reset(np); | |
5287 | break; | |
5288 | ||
5289 | default: | |
5290 | return -EINVAL; | |
5291 | } | |
5292 | ||
5293 | return 0; | |
5294 | } | |
5295 | ||
5296 | static int niu_reset_tx_xmac(struct niu *np) | |
5297 | { | |
5298 | return niu_set_and_wait_clear_mac(np, XTXMAC_SW_RST, | |
5299 | (XTXMAC_SW_RST_REG_RS | | |
5300 | XTXMAC_SW_RST_SOFT_RST), | |
5301 | 1000, 100, "XTXMAC_SW_RST"); | |
5302 | } | |
5303 | ||
5304 | static int niu_reset_tx_bmac(struct niu *np) | |
5305 | { | |
5306 | int limit; | |
5307 | ||
5308 | nw64_mac(BTXMAC_SW_RST, BTXMAC_SW_RST_RESET); | |
5309 | limit = 1000; | |
5310 | while (--limit >= 0) { | |
5311 | if (!(nr64_mac(BTXMAC_SW_RST) & BTXMAC_SW_RST_RESET)) | |
5312 | break; | |
5313 | udelay(100); | |
5314 | } | |
5315 | if (limit < 0) { | |
5316 | dev_err(np->device, PFX "Port %u TX BMAC would not reset, " | |
5317 | "BTXMAC_SW_RST[%llx]\n", | |
5318 | np->port, | |
5319 | (unsigned long long) nr64_mac(BTXMAC_SW_RST)); | |
5320 | return -ENODEV; | |
5321 | } | |
5322 | ||
5323 | return 0; | |
5324 | } | |
5325 | ||
5326 | static int niu_reset_tx_mac(struct niu *np) | |
5327 | { | |
5328 | if (np->flags & NIU_FLAGS_XMAC) | |
5329 | return niu_reset_tx_xmac(np); | |
5330 | else | |
5331 | return niu_reset_tx_bmac(np); | |
5332 | } | |
5333 | ||
5334 | static void niu_init_tx_xmac(struct niu *np, u64 min, u64 max) | |
5335 | { | |
5336 | u64 val; | |
5337 | ||
5338 | val = nr64_mac(XMAC_MIN); | |
5339 | val &= ~(XMAC_MIN_TX_MIN_PKT_SIZE | | |
5340 | XMAC_MIN_RX_MIN_PKT_SIZE); | |
5341 | val |= (min << XMAC_MIN_RX_MIN_PKT_SIZE_SHFT); | |
5342 | val |= (min << XMAC_MIN_TX_MIN_PKT_SIZE_SHFT); | |
5343 | nw64_mac(XMAC_MIN, val); | |
5344 | ||
5345 | nw64_mac(XMAC_MAX, max); | |
5346 | ||
5347 | nw64_mac(XTXMAC_STAT_MSK, ~(u64)0); | |
5348 | ||
5349 | val = nr64_mac(XMAC_IPG); | |
5350 | if (np->flags & NIU_FLAGS_10G) { | |
5351 | val &= ~XMAC_IPG_IPG_XGMII; | |
5352 | val |= (IPG_12_15_XGMII << XMAC_IPG_IPG_XGMII_SHIFT); | |
5353 | } else { | |
5354 | val &= ~XMAC_IPG_IPG_MII_GMII; | |
5355 | val |= (IPG_12_MII_GMII << XMAC_IPG_IPG_MII_GMII_SHIFT); | |
5356 | } | |
5357 | nw64_mac(XMAC_IPG, val); | |
5358 | ||
5359 | val = nr64_mac(XMAC_CONFIG); | |
5360 | val &= ~(XMAC_CONFIG_ALWAYS_NO_CRC | | |
5361 | XMAC_CONFIG_STRETCH_MODE | | |
5362 | XMAC_CONFIG_VAR_MIN_IPG_EN | | |
5363 | XMAC_CONFIG_TX_ENABLE); | |
5364 | nw64_mac(XMAC_CONFIG, val); | |
5365 | ||
5366 | nw64_mac(TXMAC_FRM_CNT, 0); | |
5367 | nw64_mac(TXMAC_BYTE_CNT, 0); | |
5368 | } | |
5369 | ||
5370 | static void niu_init_tx_bmac(struct niu *np, u64 min, u64 max) | |
5371 | { | |
5372 | u64 val; | |
5373 | ||
5374 | nw64_mac(BMAC_MIN_FRAME, min); | |
5375 | nw64_mac(BMAC_MAX_FRAME, max); | |
5376 | ||
5377 | nw64_mac(BTXMAC_STATUS_MASK, ~(u64)0); | |
5378 | nw64_mac(BMAC_CTRL_TYPE, 0x8808); | |
5379 | nw64_mac(BMAC_PREAMBLE_SIZE, 7); | |
5380 | ||
5381 | val = nr64_mac(BTXMAC_CONFIG); | |
5382 | val &= ~(BTXMAC_CONFIG_FCS_DISABLE | | |
5383 | BTXMAC_CONFIG_ENABLE); | |
5384 | nw64_mac(BTXMAC_CONFIG, val); | |
5385 | } | |
5386 | ||
5387 | static void niu_init_tx_mac(struct niu *np) | |
5388 | { | |
5389 | u64 min, max; | |
5390 | ||
5391 | min = 64; | |
5392 | if (np->dev->mtu > ETH_DATA_LEN) | |
5393 | max = 9216; | |
5394 | else | |
5395 | max = 1522; | |
5396 | ||
5397 | /* The XMAC_MIN register only accepts values for TX min which | |
5398 | * have the low 3 bits cleared. | |
5399 | */ | |
5400 | BUILD_BUG_ON(min & 0x7); | |
5401 | ||
5402 | if (np->flags & NIU_FLAGS_XMAC) | |
5403 | niu_init_tx_xmac(np, min, max); | |
5404 | else | |
5405 | niu_init_tx_bmac(np, min, max); | |
5406 | } | |
5407 | ||
5408 | static int niu_reset_rx_xmac(struct niu *np) | |
5409 | { | |
5410 | int limit; | |
5411 | ||
5412 | nw64_mac(XRXMAC_SW_RST, | |
5413 | XRXMAC_SW_RST_REG_RS | XRXMAC_SW_RST_SOFT_RST); | |
5414 | limit = 1000; | |
5415 | while (--limit >= 0) { | |
5416 | if (!(nr64_mac(XRXMAC_SW_RST) & (XRXMAC_SW_RST_REG_RS | | |
5417 | XRXMAC_SW_RST_SOFT_RST))) | |
5418 | break; | |
5419 | udelay(100); | |
5420 | } | |
5421 | if (limit < 0) { | |
5422 | dev_err(np->device, PFX "Port %u RX XMAC would not reset, " | |
5423 | "XRXMAC_SW_RST[%llx]\n", | |
5424 | np->port, | |
5425 | (unsigned long long) nr64_mac(XRXMAC_SW_RST)); | |
5426 | return -ENODEV; | |
5427 | } | |
5428 | ||
5429 | return 0; | |
5430 | } | |
5431 | ||
5432 | static int niu_reset_rx_bmac(struct niu *np) | |
5433 | { | |
5434 | int limit; | |
5435 | ||
5436 | nw64_mac(BRXMAC_SW_RST, BRXMAC_SW_RST_RESET); | |
5437 | limit = 1000; | |
5438 | while (--limit >= 0) { | |
5439 | if (!(nr64_mac(BRXMAC_SW_RST) & BRXMAC_SW_RST_RESET)) | |
5440 | break; | |
5441 | udelay(100); | |
5442 | } | |
5443 | if (limit < 0) { | |
5444 | dev_err(np->device, PFX "Port %u RX BMAC would not reset, " | |
5445 | "BRXMAC_SW_RST[%llx]\n", | |
5446 | np->port, | |
5447 | (unsigned long long) nr64_mac(BRXMAC_SW_RST)); | |
5448 | return -ENODEV; | |
5449 | } | |
5450 | ||
5451 | return 0; | |
5452 | } | |
5453 | ||
5454 | static int niu_reset_rx_mac(struct niu *np) | |
5455 | { | |
5456 | if (np->flags & NIU_FLAGS_XMAC) | |
5457 | return niu_reset_rx_xmac(np); | |
5458 | else | |
5459 | return niu_reset_rx_bmac(np); | |
5460 | } | |
5461 | ||
5462 | static void niu_init_rx_xmac(struct niu *np) | |
5463 | { | |
5464 | struct niu_parent *parent = np->parent; | |
5465 | struct niu_rdc_tables *tp = &parent->rdc_group_cfg[np->port]; | |
5466 | int first_rdc_table = tp->first_table_num; | |
5467 | unsigned long i; | |
5468 | u64 val; | |
5469 | ||
5470 | nw64_mac(XMAC_ADD_FILT0, 0); | |
5471 | nw64_mac(XMAC_ADD_FILT1, 0); | |
5472 | nw64_mac(XMAC_ADD_FILT2, 0); | |
5473 | nw64_mac(XMAC_ADD_FILT12_MASK, 0); | |
5474 | nw64_mac(XMAC_ADD_FILT00_MASK, 0); | |
5475 | for (i = 0; i < MAC_NUM_HASH; i++) | |
5476 | nw64_mac(XMAC_HASH_TBL(i), 0); | |
5477 | nw64_mac(XRXMAC_STAT_MSK, ~(u64)0); | |
5478 | niu_set_primary_mac_rdc_table(np, first_rdc_table, 1); | |
5479 | niu_set_multicast_mac_rdc_table(np, first_rdc_table, 1); | |
5480 | ||
5481 | val = nr64_mac(XMAC_CONFIG); | |
5482 | val &= ~(XMAC_CONFIG_RX_MAC_ENABLE | | |
5483 | XMAC_CONFIG_PROMISCUOUS | | |
5484 | XMAC_CONFIG_PROMISC_GROUP | | |
5485 | XMAC_CONFIG_ERR_CHK_DIS | | |
5486 | XMAC_CONFIG_RX_CRC_CHK_DIS | | |
5487 | XMAC_CONFIG_RESERVED_MULTICAST | | |
5488 | XMAC_CONFIG_RX_CODEV_CHK_DIS | | |
5489 | XMAC_CONFIG_ADDR_FILTER_EN | | |
5490 | XMAC_CONFIG_RCV_PAUSE_ENABLE | | |
5491 | XMAC_CONFIG_STRIP_CRC | | |
5492 | XMAC_CONFIG_PASS_FLOW_CTRL | | |
5493 | XMAC_CONFIG_MAC2IPP_PKT_CNT_EN); | |
5494 | val |= (XMAC_CONFIG_HASH_FILTER_EN); | |
5495 | nw64_mac(XMAC_CONFIG, val); | |
5496 | ||
5497 | nw64_mac(RXMAC_BT_CNT, 0); | |
5498 | nw64_mac(RXMAC_BC_FRM_CNT, 0); | |
5499 | nw64_mac(RXMAC_MC_FRM_CNT, 0); | |
5500 | nw64_mac(RXMAC_FRAG_CNT, 0); | |
5501 | nw64_mac(RXMAC_HIST_CNT1, 0); | |
5502 | nw64_mac(RXMAC_HIST_CNT2, 0); | |
5503 | nw64_mac(RXMAC_HIST_CNT3, 0); | |
5504 | nw64_mac(RXMAC_HIST_CNT4, 0); | |
5505 | nw64_mac(RXMAC_HIST_CNT5, 0); | |
5506 | nw64_mac(RXMAC_HIST_CNT6, 0); | |
5507 | nw64_mac(RXMAC_HIST_CNT7, 0); | |
5508 | nw64_mac(RXMAC_MPSZER_CNT, 0); | |
5509 | nw64_mac(RXMAC_CRC_ER_CNT, 0); | |
5510 | nw64_mac(RXMAC_CD_VIO_CNT, 0); | |
5511 | nw64_mac(LINK_FAULT_CNT, 0); | |
5512 | } | |
5513 | ||
5514 | static void niu_init_rx_bmac(struct niu *np) | |
5515 | { | |
5516 | struct niu_parent *parent = np->parent; | |
5517 | struct niu_rdc_tables *tp = &parent->rdc_group_cfg[np->port]; | |
5518 | int first_rdc_table = tp->first_table_num; | |
5519 | unsigned long i; | |
5520 | u64 val; | |
5521 | ||
5522 | nw64_mac(BMAC_ADD_FILT0, 0); | |
5523 | nw64_mac(BMAC_ADD_FILT1, 0); | |
5524 | nw64_mac(BMAC_ADD_FILT2, 0); | |
5525 | nw64_mac(BMAC_ADD_FILT12_MASK, 0); | |
5526 | nw64_mac(BMAC_ADD_FILT00_MASK, 0); | |
5527 | for (i = 0; i < MAC_NUM_HASH; i++) | |
5528 | nw64_mac(BMAC_HASH_TBL(i), 0); | |
5529 | niu_set_primary_mac_rdc_table(np, first_rdc_table, 1); | |
5530 | niu_set_multicast_mac_rdc_table(np, first_rdc_table, 1); | |
5531 | nw64_mac(BRXMAC_STATUS_MASK, ~(u64)0); | |
5532 | ||
5533 | val = nr64_mac(BRXMAC_CONFIG); | |
5534 | val &= ~(BRXMAC_CONFIG_ENABLE | | |
5535 | BRXMAC_CONFIG_STRIP_PAD | | |
5536 | BRXMAC_CONFIG_STRIP_FCS | | |
5537 | BRXMAC_CONFIG_PROMISC | | |
5538 | BRXMAC_CONFIG_PROMISC_GRP | | |
5539 | BRXMAC_CONFIG_ADDR_FILT_EN | | |
5540 | BRXMAC_CONFIG_DISCARD_DIS); | |
5541 | val |= (BRXMAC_CONFIG_HASH_FILT_EN); | |
5542 | nw64_mac(BRXMAC_CONFIG, val); | |
5543 | ||
5544 | val = nr64_mac(BMAC_ADDR_CMPEN); | |
5545 | val |= BMAC_ADDR_CMPEN_EN0; | |
5546 | nw64_mac(BMAC_ADDR_CMPEN, val); | |
5547 | } | |
5548 | ||
5549 | static void niu_init_rx_mac(struct niu *np) | |
5550 | { | |
5551 | niu_set_primary_mac(np, np->dev->dev_addr); | |
5552 | ||
5553 | if (np->flags & NIU_FLAGS_XMAC) | |
5554 | niu_init_rx_xmac(np); | |
5555 | else | |
5556 | niu_init_rx_bmac(np); | |
5557 | } | |
5558 | ||
5559 | static void niu_enable_tx_xmac(struct niu *np, int on) | |
5560 | { | |
5561 | u64 val = nr64_mac(XMAC_CONFIG); | |
5562 | ||
5563 | if (on) | |
5564 | val |= XMAC_CONFIG_TX_ENABLE; | |
5565 | else | |
5566 | val &= ~XMAC_CONFIG_TX_ENABLE; | |
5567 | nw64_mac(XMAC_CONFIG, val); | |
5568 | } | |
5569 | ||
5570 | static void niu_enable_tx_bmac(struct niu *np, int on) | |
5571 | { | |
5572 | u64 val = nr64_mac(BTXMAC_CONFIG); | |
5573 | ||
5574 | if (on) | |
5575 | val |= BTXMAC_CONFIG_ENABLE; | |
5576 | else | |
5577 | val &= ~BTXMAC_CONFIG_ENABLE; | |
5578 | nw64_mac(BTXMAC_CONFIG, val); | |
5579 | } | |
5580 | ||
5581 | static void niu_enable_tx_mac(struct niu *np, int on) | |
5582 | { | |
5583 | if (np->flags & NIU_FLAGS_XMAC) | |
5584 | niu_enable_tx_xmac(np, on); | |
5585 | else | |
5586 | niu_enable_tx_bmac(np, on); | |
5587 | } | |
5588 | ||
5589 | static void niu_enable_rx_xmac(struct niu *np, int on) | |
5590 | { | |
5591 | u64 val = nr64_mac(XMAC_CONFIG); | |
5592 | ||
5593 | val &= ~(XMAC_CONFIG_HASH_FILTER_EN | | |
5594 | XMAC_CONFIG_PROMISCUOUS); | |
5595 | ||
5596 | if (np->flags & NIU_FLAGS_MCAST) | |
5597 | val |= XMAC_CONFIG_HASH_FILTER_EN; | |
5598 | if (np->flags & NIU_FLAGS_PROMISC) | |
5599 | val |= XMAC_CONFIG_PROMISCUOUS; | |
5600 | ||
5601 | if (on) | |
5602 | val |= XMAC_CONFIG_RX_MAC_ENABLE; | |
5603 | else | |
5604 | val &= ~XMAC_CONFIG_RX_MAC_ENABLE; | |
5605 | nw64_mac(XMAC_CONFIG, val); | |
5606 | } | |
5607 | ||
5608 | static void niu_enable_rx_bmac(struct niu *np, int on) | |
5609 | { | |
5610 | u64 val = nr64_mac(BRXMAC_CONFIG); | |
5611 | ||
5612 | val &= ~(BRXMAC_CONFIG_HASH_FILT_EN | | |
5613 | BRXMAC_CONFIG_PROMISC); | |
5614 | ||
5615 | if (np->flags & NIU_FLAGS_MCAST) | |
5616 | val |= BRXMAC_CONFIG_HASH_FILT_EN; | |
5617 | if (np->flags & NIU_FLAGS_PROMISC) | |
5618 | val |= BRXMAC_CONFIG_PROMISC; | |
5619 | ||
5620 | if (on) | |
5621 | val |= BRXMAC_CONFIG_ENABLE; | |
5622 | else | |
5623 | val &= ~BRXMAC_CONFIG_ENABLE; | |
5624 | nw64_mac(BRXMAC_CONFIG, val); | |
5625 | } | |
5626 | ||
5627 | static void niu_enable_rx_mac(struct niu *np, int on) | |
5628 | { | |
5629 | if (np->flags & NIU_FLAGS_XMAC) | |
5630 | niu_enable_rx_xmac(np, on); | |
5631 | else | |
5632 | niu_enable_rx_bmac(np, on); | |
5633 | } | |
5634 | ||
5635 | static int niu_init_mac(struct niu *np) | |
5636 | { | |
5637 | int err; | |
5638 | ||
5639 | niu_init_xif(np); | |
5640 | err = niu_init_pcs(np); | |
5641 | if (err) | |
5642 | return err; | |
5643 | ||
5644 | err = niu_reset_tx_mac(np); | |
5645 | if (err) | |
5646 | return err; | |
5647 | niu_init_tx_mac(np); | |
5648 | err = niu_reset_rx_mac(np); | |
5649 | if (err) | |
5650 | return err; | |
5651 | niu_init_rx_mac(np); | |
5652 | ||
5653 | /* This looks hookey but the RX MAC reset we just did will | |
5654 | * undo some of the state we setup in niu_init_tx_mac() so we | |
5655 | * have to call it again. In particular, the RX MAC reset will | |
5656 | * set the XMAC_MAX register back to it's default value. | |
5657 | */ | |
5658 | niu_init_tx_mac(np); | |
5659 | niu_enable_tx_mac(np, 1); | |
5660 | ||
5661 | niu_enable_rx_mac(np, 1); | |
5662 | ||
5663 | return 0; | |
5664 | } | |
5665 | ||
5666 | static void niu_stop_one_tx_channel(struct niu *np, struct tx_ring_info *rp) | |
5667 | { | |
5668 | (void) niu_tx_channel_stop(np, rp->tx_channel); | |
5669 | } | |
5670 | ||
5671 | static void niu_stop_tx_channels(struct niu *np) | |
5672 | { | |
5673 | int i; | |
5674 | ||
5675 | for (i = 0; i < np->num_tx_rings; i++) { | |
5676 | struct tx_ring_info *rp = &np->tx_rings[i]; | |
5677 | ||
5678 | niu_stop_one_tx_channel(np, rp); | |
5679 | } | |
5680 | } | |
5681 | ||
5682 | static void niu_reset_one_tx_channel(struct niu *np, struct tx_ring_info *rp) | |
5683 | { | |
5684 | (void) niu_tx_channel_reset(np, rp->tx_channel); | |
5685 | } | |
5686 | ||
5687 | static void niu_reset_tx_channels(struct niu *np) | |
5688 | { | |
5689 | int i; | |
5690 | ||
5691 | for (i = 0; i < np->num_tx_rings; i++) { | |
5692 | struct tx_ring_info *rp = &np->tx_rings[i]; | |
5693 | ||
5694 | niu_reset_one_tx_channel(np, rp); | |
5695 | } | |
5696 | } | |
5697 | ||
5698 | static void niu_stop_one_rx_channel(struct niu *np, struct rx_ring_info *rp) | |
5699 | { | |
5700 | (void) niu_enable_rx_channel(np, rp->rx_channel, 0); | |
5701 | } | |
5702 | ||
5703 | static void niu_stop_rx_channels(struct niu *np) | |
5704 | { | |
5705 | int i; | |
5706 | ||
5707 | for (i = 0; i < np->num_rx_rings; i++) { | |
5708 | struct rx_ring_info *rp = &np->rx_rings[i]; | |
5709 | ||
5710 | niu_stop_one_rx_channel(np, rp); | |
5711 | } | |
5712 | } | |
5713 | ||
5714 | static void niu_reset_one_rx_channel(struct niu *np, struct rx_ring_info *rp) | |
5715 | { | |
5716 | int channel = rp->rx_channel; | |
5717 | ||
5718 | (void) niu_rx_channel_reset(np, channel); | |
5719 | nw64(RX_DMA_ENT_MSK(channel), RX_DMA_ENT_MSK_ALL); | |
5720 | nw64(RX_DMA_CTL_STAT(channel), 0); | |
5721 | (void) niu_enable_rx_channel(np, channel, 0); | |
5722 | } | |
5723 | ||
5724 | static void niu_reset_rx_channels(struct niu *np) | |
5725 | { | |
5726 | int i; | |
5727 | ||
5728 | for (i = 0; i < np->num_rx_rings; i++) { | |
5729 | struct rx_ring_info *rp = &np->rx_rings[i]; | |
5730 | ||
5731 | niu_reset_one_rx_channel(np, rp); | |
5732 | } | |
5733 | } | |
5734 | ||
5735 | static void niu_disable_ipp(struct niu *np) | |
5736 | { | |
5737 | u64 rd, wr, val; | |
5738 | int limit; | |
5739 | ||
5740 | rd = nr64_ipp(IPP_DFIFO_RD_PTR); | |
5741 | wr = nr64_ipp(IPP_DFIFO_WR_PTR); | |
5742 | limit = 100; | |
5743 | while (--limit >= 0 && (rd != wr)) { | |
5744 | rd = nr64_ipp(IPP_DFIFO_RD_PTR); | |
5745 | wr = nr64_ipp(IPP_DFIFO_WR_PTR); | |
5746 | } | |
5747 | if (limit < 0 && | |
5748 | (rd != 0 && wr != 1)) { | |
5749 | dev_err(np->device, PFX "%s: IPP would not quiesce, " | |
5750 | "rd_ptr[%llx] wr_ptr[%llx]\n", | |
5751 | np->dev->name, | |
5752 | (unsigned long long) nr64_ipp(IPP_DFIFO_RD_PTR), | |
5753 | (unsigned long long) nr64_ipp(IPP_DFIFO_WR_PTR)); | |
5754 | } | |
5755 | ||
5756 | val = nr64_ipp(IPP_CFIG); | |
5757 | val &= ~(IPP_CFIG_IPP_ENABLE | | |
5758 | IPP_CFIG_DFIFO_ECC_EN | | |
5759 | IPP_CFIG_DROP_BAD_CRC | | |
5760 | IPP_CFIG_CKSUM_EN); | |
5761 | nw64_ipp(IPP_CFIG, val); | |
5762 | ||
5763 | (void) niu_ipp_reset(np); | |
5764 | } | |
5765 | ||
5766 | static int niu_init_hw(struct niu *np) | |
5767 | { | |
5768 | int i, err; | |
5769 | ||
5770 | niudbg(IFUP, "%s: Initialize TXC\n", np->dev->name); | |
5771 | niu_txc_enable_port(np, 1); | |
5772 | niu_txc_port_dma_enable(np, 1); | |
5773 | niu_txc_set_imask(np, 0); | |
5774 | ||
5775 | niudbg(IFUP, "%s: Initialize TX channels\n", np->dev->name); | |
5776 | for (i = 0; i < np->num_tx_rings; i++) { | |
5777 | struct tx_ring_info *rp = &np->tx_rings[i]; | |
5778 | ||
5779 | err = niu_init_one_tx_channel(np, rp); | |
5780 | if (err) | |
5781 | return err; | |
5782 | } | |
5783 | ||
5784 | niudbg(IFUP, "%s: Initialize RX channels\n", np->dev->name); | |
5785 | err = niu_init_rx_channels(np); | |
5786 | if (err) | |
5787 | goto out_uninit_tx_channels; | |
5788 | ||
5789 | niudbg(IFUP, "%s: Initialize classifier\n", np->dev->name); | |
5790 | err = niu_init_classifier_hw(np); | |
5791 | if (err) | |
5792 | goto out_uninit_rx_channels; | |
5793 | ||
5794 | niudbg(IFUP, "%s: Initialize ZCP\n", np->dev->name); | |
5795 | err = niu_init_zcp(np); | |
5796 | if (err) | |
5797 | goto out_uninit_rx_channels; | |
5798 | ||
5799 | niudbg(IFUP, "%s: Initialize IPP\n", np->dev->name); | |
5800 | err = niu_init_ipp(np); | |
5801 | if (err) | |
5802 | goto out_uninit_rx_channels; | |
5803 | ||
5804 | niudbg(IFUP, "%s: Initialize MAC\n", np->dev->name); | |
5805 | err = niu_init_mac(np); | |
5806 | if (err) | |
5807 | goto out_uninit_ipp; | |
5808 | ||
5809 | return 0; | |
5810 | ||
5811 | out_uninit_ipp: | |
5812 | niudbg(IFUP, "%s: Uninit IPP\n", np->dev->name); | |
5813 | niu_disable_ipp(np); | |
5814 | ||
5815 | out_uninit_rx_channels: | |
5816 | niudbg(IFUP, "%s: Uninit RX channels\n", np->dev->name); | |
5817 | niu_stop_rx_channels(np); | |
5818 | niu_reset_rx_channels(np); | |
5819 | ||
5820 | out_uninit_tx_channels: | |
5821 | niudbg(IFUP, "%s: Uninit TX channels\n", np->dev->name); | |
5822 | niu_stop_tx_channels(np); | |
5823 | niu_reset_tx_channels(np); | |
5824 | ||
5825 | return err; | |
5826 | } | |
5827 | ||
5828 | static void niu_stop_hw(struct niu *np) | |
5829 | { | |
5830 | niudbg(IFDOWN, "%s: Disable interrupts\n", np->dev->name); | |
5831 | niu_enable_interrupts(np, 0); | |
5832 | ||
5833 | niudbg(IFDOWN, "%s: Disable RX MAC\n", np->dev->name); | |
5834 | niu_enable_rx_mac(np, 0); | |
5835 | ||
5836 | niudbg(IFDOWN, "%s: Disable IPP\n", np->dev->name); | |
5837 | niu_disable_ipp(np); | |
5838 | ||
5839 | niudbg(IFDOWN, "%s: Stop TX channels\n", np->dev->name); | |
5840 | niu_stop_tx_channels(np); | |
5841 | ||
5842 | niudbg(IFDOWN, "%s: Stop RX channels\n", np->dev->name); | |
5843 | niu_stop_rx_channels(np); | |
5844 | ||
5845 | niudbg(IFDOWN, "%s: Reset TX channels\n", np->dev->name); | |
5846 | niu_reset_tx_channels(np); | |
5847 | ||
5848 | niudbg(IFDOWN, "%s: Reset RX channels\n", np->dev->name); | |
5849 | niu_reset_rx_channels(np); | |
5850 | } | |
5851 | ||
5852 | static int niu_request_irq(struct niu *np) | |
5853 | { | |
5854 | int i, j, err; | |
5855 | ||
5856 | err = 0; | |
5857 | for (i = 0; i < np->num_ldg; i++) { | |
5858 | struct niu_ldg *lp = &np->ldg[i]; | |
5859 | ||
5860 | err = request_irq(lp->irq, niu_interrupt, | |
5861 | IRQF_SHARED | IRQF_SAMPLE_RANDOM, | |
5862 | np->dev->name, lp); | |
5863 | if (err) | |
5864 | goto out_free_irqs; | |
5865 | ||
5866 | } | |
5867 | ||
5868 | return 0; | |
5869 | ||
5870 | out_free_irqs: | |
5871 | for (j = 0; j < i; j++) { | |
5872 | struct niu_ldg *lp = &np->ldg[j]; | |
5873 | ||
5874 | free_irq(lp->irq, lp); | |
5875 | } | |
5876 | return err; | |
5877 | } | |
5878 | ||
5879 | static void niu_free_irq(struct niu *np) | |
5880 | { | |
5881 | int i; | |
5882 | ||
5883 | for (i = 0; i < np->num_ldg; i++) { | |
5884 | struct niu_ldg *lp = &np->ldg[i]; | |
5885 | ||
5886 | free_irq(lp->irq, lp); | |
5887 | } | |
5888 | } | |
5889 | ||
5890 | static void niu_enable_napi(struct niu *np) | |
5891 | { | |
5892 | int i; | |
5893 | ||
5894 | for (i = 0; i < np->num_ldg; i++) | |
5895 | napi_enable(&np->ldg[i].napi); | |
5896 | } | |
5897 | ||
5898 | static void niu_disable_napi(struct niu *np) | |
5899 | { | |
5900 | int i; | |
5901 | ||
5902 | for (i = 0; i < np->num_ldg; i++) | |
5903 | napi_disable(&np->ldg[i].napi); | |
5904 | } | |
5905 | ||
5906 | static int niu_open(struct net_device *dev) | |
5907 | { | |
5908 | struct niu *np = netdev_priv(dev); | |
5909 | int err; | |
5910 | ||
5911 | netif_carrier_off(dev); | |
5912 | ||
5913 | err = niu_alloc_channels(np); | |
5914 | if (err) | |
5915 | goto out_err; | |
5916 | ||
5917 | err = niu_enable_interrupts(np, 0); | |
5918 | if (err) | |
5919 | goto out_free_channels; | |
5920 | ||
5921 | err = niu_request_irq(np); | |
5922 | if (err) | |
5923 | goto out_free_channels; | |
5924 | ||
5925 | niu_enable_napi(np); | |
5926 | ||
5927 | spin_lock_irq(&np->lock); | |
5928 | ||
5929 | err = niu_init_hw(np); | |
5930 | if (!err) { | |
5931 | init_timer(&np->timer); | |
5932 | np->timer.expires = jiffies + HZ; | |
5933 | np->timer.data = (unsigned long) np; | |
5934 | np->timer.function = niu_timer; | |
5935 | ||
5936 | err = niu_enable_interrupts(np, 1); | |
5937 | if (err) | |
5938 | niu_stop_hw(np); | |
5939 | } | |
5940 | ||
5941 | spin_unlock_irq(&np->lock); | |
5942 | ||
5943 | if (err) { | |
5944 | niu_disable_napi(np); | |
5945 | goto out_free_irq; | |
5946 | } | |
5947 | ||
b4c21639 | 5948 | netif_tx_start_all_queues(dev); |
a3138df9 DM |
5949 | |
5950 | if (np->link_config.loopback_mode != LOOPBACK_DISABLED) | |
5951 | netif_carrier_on(dev); | |
5952 | ||
5953 | add_timer(&np->timer); | |
5954 | ||
5955 | return 0; | |
5956 | ||
5957 | out_free_irq: | |
5958 | niu_free_irq(np); | |
5959 | ||
5960 | out_free_channels: | |
5961 | niu_free_channels(np); | |
5962 | ||
5963 | out_err: | |
5964 | return err; | |
5965 | } | |
5966 | ||
5967 | static void niu_full_shutdown(struct niu *np, struct net_device *dev) | |
5968 | { | |
5969 | cancel_work_sync(&np->reset_task); | |
5970 | ||
5971 | niu_disable_napi(np); | |
b4c21639 | 5972 | netif_tx_stop_all_queues(dev); |
a3138df9 DM |
5973 | |
5974 | del_timer_sync(&np->timer); | |
5975 | ||
5976 | spin_lock_irq(&np->lock); | |
5977 | ||
5978 | niu_stop_hw(np); | |
5979 | ||
5980 | spin_unlock_irq(&np->lock); | |
5981 | } | |
5982 | ||
5983 | static int niu_close(struct net_device *dev) | |
5984 | { | |
5985 | struct niu *np = netdev_priv(dev); | |
5986 | ||
5987 | niu_full_shutdown(np, dev); | |
5988 | ||
5989 | niu_free_irq(np); | |
5990 | ||
5991 | niu_free_channels(np); | |
5992 | ||
0c3b091b ML |
5993 | niu_handle_led(np, 0); |
5994 | ||
a3138df9 DM |
5995 | return 0; |
5996 | } | |
5997 | ||
5998 | static void niu_sync_xmac_stats(struct niu *np) | |
5999 | { | |
6000 | struct niu_xmac_stats *mp = &np->mac_stats.xmac; | |
6001 | ||
6002 | mp->tx_frames += nr64_mac(TXMAC_FRM_CNT); | |
6003 | mp->tx_bytes += nr64_mac(TXMAC_BYTE_CNT); | |
6004 | ||
6005 | mp->rx_link_faults += nr64_mac(LINK_FAULT_CNT); | |
6006 | mp->rx_align_errors += nr64_mac(RXMAC_ALIGN_ERR_CNT); | |
6007 | mp->rx_frags += nr64_mac(RXMAC_FRAG_CNT); | |
6008 | mp->rx_mcasts += nr64_mac(RXMAC_MC_FRM_CNT); | |
6009 | mp->rx_bcasts += nr64_mac(RXMAC_BC_FRM_CNT); | |
6010 | mp->rx_hist_cnt1 += nr64_mac(RXMAC_HIST_CNT1); | |
6011 | mp->rx_hist_cnt2 += nr64_mac(RXMAC_HIST_CNT2); | |
6012 | mp->rx_hist_cnt3 += nr64_mac(RXMAC_HIST_CNT3); | |
6013 | mp->rx_hist_cnt4 += nr64_mac(RXMAC_HIST_CNT4); | |
6014 | mp->rx_hist_cnt5 += nr64_mac(RXMAC_HIST_CNT5); | |
6015 | mp->rx_hist_cnt6 += nr64_mac(RXMAC_HIST_CNT6); | |
6016 | mp->rx_hist_cnt7 += nr64_mac(RXMAC_HIST_CNT7); | |
6017 | mp->rx_octets += nr64_mac(RXMAC_BT_CNT); | |
6018 | mp->rx_code_violations += nr64_mac(RXMAC_CD_VIO_CNT); | |
6019 | mp->rx_len_errors += nr64_mac(RXMAC_MPSZER_CNT); | |
6020 | mp->rx_crc_errors += nr64_mac(RXMAC_CRC_ER_CNT); | |
6021 | } | |
6022 | ||
6023 | static void niu_sync_bmac_stats(struct niu *np) | |
6024 | { | |
6025 | struct niu_bmac_stats *mp = &np->mac_stats.bmac; | |
6026 | ||
6027 | mp->tx_bytes += nr64_mac(BTXMAC_BYTE_CNT); | |
6028 | mp->tx_frames += nr64_mac(BTXMAC_FRM_CNT); | |
6029 | ||
6030 | mp->rx_frames += nr64_mac(BRXMAC_FRAME_CNT); | |
6031 | mp->rx_align_errors += nr64_mac(BRXMAC_ALIGN_ERR_CNT); | |
6032 | mp->rx_crc_errors += nr64_mac(BRXMAC_ALIGN_ERR_CNT); | |
6033 | mp->rx_len_errors += nr64_mac(BRXMAC_CODE_VIOL_ERR_CNT); | |
6034 | } | |
6035 | ||
6036 | static void niu_sync_mac_stats(struct niu *np) | |
6037 | { | |
6038 | if (np->flags & NIU_FLAGS_XMAC) | |
6039 | niu_sync_xmac_stats(np); | |
6040 | else | |
6041 | niu_sync_bmac_stats(np); | |
6042 | } | |
6043 | ||
6044 | static void niu_get_rx_stats(struct niu *np) | |
6045 | { | |
6046 | unsigned long pkts, dropped, errors, bytes; | |
6047 | int i; | |
6048 | ||
6049 | pkts = dropped = errors = bytes = 0; | |
6050 | for (i = 0; i < np->num_rx_rings; i++) { | |
6051 | struct rx_ring_info *rp = &np->rx_rings[i]; | |
6052 | ||
6053 | pkts += rp->rx_packets; | |
6054 | bytes += rp->rx_bytes; | |
6055 | dropped += rp->rx_dropped; | |
6056 | errors += rp->rx_errors; | |
6057 | } | |
6058 | np->net_stats.rx_packets = pkts; | |
6059 | np->net_stats.rx_bytes = bytes; | |
6060 | np->net_stats.rx_dropped = dropped; | |
6061 | np->net_stats.rx_errors = errors; | |
6062 | } | |
6063 | ||
6064 | static void niu_get_tx_stats(struct niu *np) | |
6065 | { | |
6066 | unsigned long pkts, errors, bytes; | |
6067 | int i; | |
6068 | ||
6069 | pkts = errors = bytes = 0; | |
6070 | for (i = 0; i < np->num_tx_rings; i++) { | |
6071 | struct tx_ring_info *rp = &np->tx_rings[i]; | |
6072 | ||
6073 | pkts += rp->tx_packets; | |
6074 | bytes += rp->tx_bytes; | |
6075 | errors += rp->tx_errors; | |
6076 | } | |
6077 | np->net_stats.tx_packets = pkts; | |
6078 | np->net_stats.tx_bytes = bytes; | |
6079 | np->net_stats.tx_errors = errors; | |
6080 | } | |
6081 | ||
6082 | static struct net_device_stats *niu_get_stats(struct net_device *dev) | |
6083 | { | |
6084 | struct niu *np = netdev_priv(dev); | |
6085 | ||
6086 | niu_get_rx_stats(np); | |
6087 | niu_get_tx_stats(np); | |
6088 | ||
6089 | return &np->net_stats; | |
6090 | } | |
6091 | ||
6092 | static void niu_load_hash_xmac(struct niu *np, u16 *hash) | |
6093 | { | |
6094 | int i; | |
6095 | ||
6096 | for (i = 0; i < 16; i++) | |
6097 | nw64_mac(XMAC_HASH_TBL(i), hash[i]); | |
6098 | } | |
6099 | ||
6100 | static void niu_load_hash_bmac(struct niu *np, u16 *hash) | |
6101 | { | |
6102 | int i; | |
6103 | ||
6104 | for (i = 0; i < 16; i++) | |
6105 | nw64_mac(BMAC_HASH_TBL(i), hash[i]); | |
6106 | } | |
6107 | ||
6108 | static void niu_load_hash(struct niu *np, u16 *hash) | |
6109 | { | |
6110 | if (np->flags & NIU_FLAGS_XMAC) | |
6111 | niu_load_hash_xmac(np, hash); | |
6112 | else | |
6113 | niu_load_hash_bmac(np, hash); | |
6114 | } | |
6115 | ||
6116 | static void niu_set_rx_mode(struct net_device *dev) | |
6117 | { | |
6118 | struct niu *np = netdev_priv(dev); | |
6119 | int i, alt_cnt, err; | |
6120 | struct dev_addr_list *addr; | |
6121 | unsigned long flags; | |
6122 | u16 hash[16] = { 0, }; | |
6123 | ||
6124 | spin_lock_irqsave(&np->lock, flags); | |
6125 | niu_enable_rx_mac(np, 0); | |
6126 | ||
6127 | np->flags &= ~(NIU_FLAGS_MCAST | NIU_FLAGS_PROMISC); | |
6128 | if (dev->flags & IFF_PROMISC) | |
6129 | np->flags |= NIU_FLAGS_PROMISC; | |
6130 | if ((dev->flags & IFF_ALLMULTI) || (dev->mc_count > 0)) | |
6131 | np->flags |= NIU_FLAGS_MCAST; | |
6132 | ||
6133 | alt_cnt = dev->uc_count; | |
6134 | if (alt_cnt > niu_num_alt_addr(np)) { | |
6135 | alt_cnt = 0; | |
6136 | np->flags |= NIU_FLAGS_PROMISC; | |
6137 | } | |
6138 | ||
6139 | if (alt_cnt) { | |
6140 | int index = 0; | |
6141 | ||
6142 | for (addr = dev->uc_list; addr; addr = addr->next) { | |
6143 | err = niu_set_alt_mac(np, index, | |
6144 | addr->da_addr); | |
6145 | if (err) | |
6146 | printk(KERN_WARNING PFX "%s: Error %d " | |
6147 | "adding alt mac %d\n", | |
6148 | dev->name, err, index); | |
6149 | err = niu_enable_alt_mac(np, index, 1); | |
6150 | if (err) | |
6151 | printk(KERN_WARNING PFX "%s: Error %d " | |
6152 | "enabling alt mac %d\n", | |
6153 | dev->name, err, index); | |
6154 | ||
6155 | index++; | |
6156 | } | |
6157 | } else { | |
3b5bcede MW |
6158 | int alt_start; |
6159 | if (np->flags & NIU_FLAGS_XMAC) | |
6160 | alt_start = 0; | |
6161 | else | |
6162 | alt_start = 1; | |
6163 | for (i = alt_start; i < niu_num_alt_addr(np); i++) { | |
a3138df9 DM |
6164 | err = niu_enable_alt_mac(np, i, 0); |
6165 | if (err) | |
6166 | printk(KERN_WARNING PFX "%s: Error %d " | |
6167 | "disabling alt mac %d\n", | |
6168 | dev->name, err, i); | |
6169 | } | |
6170 | } | |
6171 | if (dev->flags & IFF_ALLMULTI) { | |
6172 | for (i = 0; i < 16; i++) | |
6173 | hash[i] = 0xffff; | |
6174 | } else if (dev->mc_count > 0) { | |
6175 | for (addr = dev->mc_list; addr; addr = addr->next) { | |
6176 | u32 crc = ether_crc_le(ETH_ALEN, addr->da_addr); | |
6177 | ||
6178 | crc >>= 24; | |
6179 | hash[crc >> 4] |= (1 << (15 - (crc & 0xf))); | |
6180 | } | |
6181 | } | |
6182 | ||
6183 | if (np->flags & NIU_FLAGS_MCAST) | |
6184 | niu_load_hash(np, hash); | |
6185 | ||
6186 | niu_enable_rx_mac(np, 1); | |
6187 | spin_unlock_irqrestore(&np->lock, flags); | |
6188 | } | |
6189 | ||
6190 | static int niu_set_mac_addr(struct net_device *dev, void *p) | |
6191 | { | |
6192 | struct niu *np = netdev_priv(dev); | |
6193 | struct sockaddr *addr = p; | |
6194 | unsigned long flags; | |
6195 | ||
6196 | if (!is_valid_ether_addr(addr->sa_data)) | |
6197 | return -EINVAL; | |
6198 | ||
6199 | memcpy(dev->dev_addr, addr->sa_data, ETH_ALEN); | |
6200 | ||
6201 | if (!netif_running(dev)) | |
6202 | return 0; | |
6203 | ||
6204 | spin_lock_irqsave(&np->lock, flags); | |
6205 | niu_enable_rx_mac(np, 0); | |
6206 | niu_set_primary_mac(np, dev->dev_addr); | |
6207 | niu_enable_rx_mac(np, 1); | |
6208 | spin_unlock_irqrestore(&np->lock, flags); | |
6209 | ||
6210 | return 0; | |
6211 | } | |
6212 | ||
6213 | static int niu_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) | |
6214 | { | |
6215 | return -EOPNOTSUPP; | |
6216 | } | |
6217 | ||
6218 | static void niu_netif_stop(struct niu *np) | |
6219 | { | |
6220 | np->dev->trans_start = jiffies; /* prevent tx timeout */ | |
6221 | ||
6222 | niu_disable_napi(np); | |
6223 | ||
6224 | netif_tx_disable(np->dev); | |
6225 | } | |
6226 | ||
6227 | static void niu_netif_start(struct niu *np) | |
6228 | { | |
6229 | /* NOTE: unconditional netif_wake_queue is only appropriate | |
6230 | * so long as all callers are assured to have free tx slots | |
6231 | * (such as after niu_init_hw). | |
6232 | */ | |
b4c21639 | 6233 | netif_tx_wake_all_queues(np->dev); |
a3138df9 DM |
6234 | |
6235 | niu_enable_napi(np); | |
6236 | ||
6237 | niu_enable_interrupts(np, 1); | |
6238 | } | |
6239 | ||
cff502a3 SB |
6240 | static void niu_reset_buffers(struct niu *np) |
6241 | { | |
6242 | int i, j, k, err; | |
6243 | ||
6244 | if (np->rx_rings) { | |
6245 | for (i = 0; i < np->num_rx_rings; i++) { | |
6246 | struct rx_ring_info *rp = &np->rx_rings[i]; | |
6247 | ||
6248 | for (j = 0, k = 0; j < MAX_RBR_RING_SIZE; j++) { | |
6249 | struct page *page; | |
6250 | ||
6251 | page = rp->rxhash[j]; | |
6252 | while (page) { | |
6253 | struct page *next = | |
6254 | (struct page *) page->mapping; | |
6255 | u64 base = page->index; | |
6256 | base = base >> RBR_DESCR_ADDR_SHIFT; | |
6257 | rp->rbr[k++] = cpu_to_le32(base); | |
6258 | page = next; | |
6259 | } | |
6260 | } | |
6261 | for (; k < MAX_RBR_RING_SIZE; k++) { | |
6262 | err = niu_rbr_add_page(np, rp, GFP_ATOMIC, k); | |
6263 | if (unlikely(err)) | |
6264 | break; | |
6265 | } | |
6266 | ||
6267 | rp->rbr_index = rp->rbr_table_size - 1; | |
6268 | rp->rcr_index = 0; | |
6269 | rp->rbr_pending = 0; | |
6270 | rp->rbr_refill_pending = 0; | |
6271 | } | |
6272 | } | |
6273 | if (np->tx_rings) { | |
6274 | for (i = 0; i < np->num_tx_rings; i++) { | |
6275 | struct tx_ring_info *rp = &np->tx_rings[i]; | |
6276 | ||
6277 | for (j = 0; j < MAX_TX_RING_SIZE; j++) { | |
6278 | if (rp->tx_buffs[j].skb) | |
6279 | (void) release_tx_packet(np, rp, j); | |
6280 | } | |
6281 | ||
6282 | rp->pending = MAX_TX_RING_SIZE; | |
6283 | rp->prod = 0; | |
6284 | rp->cons = 0; | |
6285 | rp->wrap_bit = 0; | |
6286 | } | |
6287 | } | |
6288 | } | |
6289 | ||
a3138df9 DM |
6290 | static void niu_reset_task(struct work_struct *work) |
6291 | { | |
6292 | struct niu *np = container_of(work, struct niu, reset_task); | |
6293 | unsigned long flags; | |
6294 | int err; | |
6295 | ||
6296 | spin_lock_irqsave(&np->lock, flags); | |
6297 | if (!netif_running(np->dev)) { | |
6298 | spin_unlock_irqrestore(&np->lock, flags); | |
6299 | return; | |
6300 | } | |
6301 | ||
6302 | spin_unlock_irqrestore(&np->lock, flags); | |
6303 | ||
6304 | del_timer_sync(&np->timer); | |
6305 | ||
6306 | niu_netif_stop(np); | |
6307 | ||
6308 | spin_lock_irqsave(&np->lock, flags); | |
6309 | ||
6310 | niu_stop_hw(np); | |
6311 | ||
cff502a3 SB |
6312 | spin_unlock_irqrestore(&np->lock, flags); |
6313 | ||
6314 | niu_reset_buffers(np); | |
6315 | ||
6316 | spin_lock_irqsave(&np->lock, flags); | |
6317 | ||
a3138df9 DM |
6318 | err = niu_init_hw(np); |
6319 | if (!err) { | |
6320 | np->timer.expires = jiffies + HZ; | |
6321 | add_timer(&np->timer); | |
6322 | niu_netif_start(np); | |
6323 | } | |
6324 | ||
6325 | spin_unlock_irqrestore(&np->lock, flags); | |
6326 | } | |
6327 | ||
6328 | static void niu_tx_timeout(struct net_device *dev) | |
6329 | { | |
6330 | struct niu *np = netdev_priv(dev); | |
6331 | ||
6332 | dev_err(np->device, PFX "%s: Transmit timed out, resetting\n", | |
6333 | dev->name); | |
6334 | ||
6335 | schedule_work(&np->reset_task); | |
6336 | } | |
6337 | ||
6338 | static void niu_set_txd(struct tx_ring_info *rp, int index, | |
6339 | u64 mapping, u64 len, u64 mark, | |
6340 | u64 n_frags) | |
6341 | { | |
6342 | __le64 *desc = &rp->descr[index]; | |
6343 | ||
6344 | *desc = cpu_to_le64(mark | | |
6345 | (n_frags << TX_DESC_NUM_PTR_SHIFT) | | |
6346 | (len << TX_DESC_TR_LEN_SHIFT) | | |
6347 | (mapping & TX_DESC_SAD)); | |
6348 | } | |
6349 | ||
6350 | static u64 niu_compute_tx_flags(struct sk_buff *skb, struct ethhdr *ehdr, | |
6351 | u64 pad_bytes, u64 len) | |
6352 | { | |
6353 | u16 eth_proto, eth_proto_inner; | |
6354 | u64 csum_bits, l3off, ihl, ret; | |
6355 | u8 ip_proto; | |
6356 | int ipv6; | |
6357 | ||
6358 | eth_proto = be16_to_cpu(ehdr->h_proto); | |
6359 | eth_proto_inner = eth_proto; | |
6360 | if (eth_proto == ETH_P_8021Q) { | |
6361 | struct vlan_ethhdr *vp = (struct vlan_ethhdr *) ehdr; | |
6362 | __be16 val = vp->h_vlan_encapsulated_proto; | |
6363 | ||
6364 | eth_proto_inner = be16_to_cpu(val); | |
6365 | } | |
6366 | ||
6367 | ipv6 = ihl = 0; | |
6368 | switch (skb->protocol) { | |
6369 | case __constant_htons(ETH_P_IP): | |
6370 | ip_proto = ip_hdr(skb)->protocol; | |
6371 | ihl = ip_hdr(skb)->ihl; | |
6372 | break; | |
6373 | case __constant_htons(ETH_P_IPV6): | |
6374 | ip_proto = ipv6_hdr(skb)->nexthdr; | |
6375 | ihl = (40 >> 2); | |
6376 | ipv6 = 1; | |
6377 | break; | |
6378 | default: | |
6379 | ip_proto = ihl = 0; | |
6380 | break; | |
6381 | } | |
6382 | ||
6383 | csum_bits = TXHDR_CSUM_NONE; | |
6384 | if (skb->ip_summed == CHECKSUM_PARTIAL) { | |
6385 | u64 start, stuff; | |
6386 | ||
6387 | csum_bits = (ip_proto == IPPROTO_TCP ? | |
6388 | TXHDR_CSUM_TCP : | |
6389 | (ip_proto == IPPROTO_UDP ? | |
6390 | TXHDR_CSUM_UDP : TXHDR_CSUM_SCTP)); | |
6391 | ||
6392 | start = skb_transport_offset(skb) - | |
6393 | (pad_bytes + sizeof(struct tx_pkt_hdr)); | |
6394 | stuff = start + skb->csum_offset; | |
6395 | ||
6396 | csum_bits |= (start / 2) << TXHDR_L4START_SHIFT; | |
6397 | csum_bits |= (stuff / 2) << TXHDR_L4STUFF_SHIFT; | |
6398 | } | |
6399 | ||
6400 | l3off = skb_network_offset(skb) - | |
6401 | (pad_bytes + sizeof(struct tx_pkt_hdr)); | |
6402 | ||
6403 | ret = (((pad_bytes / 2) << TXHDR_PAD_SHIFT) | | |
6404 | (len << TXHDR_LEN_SHIFT) | | |
6405 | ((l3off / 2) << TXHDR_L3START_SHIFT) | | |
6406 | (ihl << TXHDR_IHL_SHIFT) | | |
6407 | ((eth_proto_inner < 1536) ? TXHDR_LLC : 0) | | |
6408 | ((eth_proto == ETH_P_8021Q) ? TXHDR_VLAN : 0) | | |
6409 | (ipv6 ? TXHDR_IP_VER : 0) | | |
6410 | csum_bits); | |
6411 | ||
6412 | return ret; | |
6413 | } | |
6414 | ||
a3138df9 DM |
6415 | static int niu_start_xmit(struct sk_buff *skb, struct net_device *dev) |
6416 | { | |
6417 | struct niu *np = netdev_priv(dev); | |
6418 | unsigned long align, headroom; | |
b4c21639 | 6419 | struct netdev_queue *txq; |
a3138df9 DM |
6420 | struct tx_ring_info *rp; |
6421 | struct tx_pkt_hdr *tp; | |
6422 | unsigned int len, nfg; | |
6423 | struct ethhdr *ehdr; | |
6424 | int prod, i, tlen; | |
6425 | u64 mapping, mrk; | |
6426 | ||
b4c21639 DM |
6427 | i = skb_get_queue_mapping(skb); |
6428 | rp = &np->tx_rings[i]; | |
6429 | txq = netdev_get_tx_queue(dev, i); | |
a3138df9 DM |
6430 | |
6431 | if (niu_tx_avail(rp) <= (skb_shinfo(skb)->nr_frags + 1)) { | |
b4c21639 | 6432 | netif_tx_stop_queue(txq); |
a3138df9 DM |
6433 | dev_err(np->device, PFX "%s: BUG! Tx ring full when " |
6434 | "queue awake!\n", dev->name); | |
6435 | rp->tx_errors++; | |
6436 | return NETDEV_TX_BUSY; | |
6437 | } | |
6438 | ||
6439 | if (skb->len < ETH_ZLEN) { | |
6440 | unsigned int pad_bytes = ETH_ZLEN - skb->len; | |
6441 | ||
6442 | if (skb_pad(skb, pad_bytes)) | |
6443 | goto out; | |
6444 | skb_put(skb, pad_bytes); | |
6445 | } | |
6446 | ||
6447 | len = sizeof(struct tx_pkt_hdr) + 15; | |
6448 | if (skb_headroom(skb) < len) { | |
6449 | struct sk_buff *skb_new; | |
6450 | ||
6451 | skb_new = skb_realloc_headroom(skb, len); | |
6452 | if (!skb_new) { | |
6453 | rp->tx_errors++; | |
6454 | goto out_drop; | |
6455 | } | |
6456 | kfree_skb(skb); | |
6457 | skb = skb_new; | |
3ebebccf DM |
6458 | } else |
6459 | skb_orphan(skb); | |
a3138df9 DM |
6460 | |
6461 | align = ((unsigned long) skb->data & (16 - 1)); | |
6462 | headroom = align + sizeof(struct tx_pkt_hdr); | |
6463 | ||
6464 | ehdr = (struct ethhdr *) skb->data; | |
6465 | tp = (struct tx_pkt_hdr *) skb_push(skb, headroom); | |
6466 | ||
6467 | len = skb->len - sizeof(struct tx_pkt_hdr); | |
6468 | tp->flags = cpu_to_le64(niu_compute_tx_flags(skb, ehdr, align, len)); | |
6469 | tp->resv = 0; | |
6470 | ||
6471 | len = skb_headlen(skb); | |
6472 | mapping = np->ops->map_single(np->device, skb->data, | |
6473 | len, DMA_TO_DEVICE); | |
6474 | ||
6475 | prod = rp->prod; | |
6476 | ||
6477 | rp->tx_buffs[prod].skb = skb; | |
6478 | rp->tx_buffs[prod].mapping = mapping; | |
6479 | ||
6480 | mrk = TX_DESC_SOP; | |
6481 | if (++rp->mark_counter == rp->mark_freq) { | |
6482 | rp->mark_counter = 0; | |
6483 | mrk |= TX_DESC_MARK; | |
6484 | rp->mark_pending++; | |
6485 | } | |
6486 | ||
6487 | tlen = len; | |
6488 | nfg = skb_shinfo(skb)->nr_frags; | |
6489 | while (tlen > 0) { | |
6490 | tlen -= MAX_TX_DESC_LEN; | |
6491 | nfg++; | |
6492 | } | |
6493 | ||
6494 | while (len > 0) { | |
6495 | unsigned int this_len = len; | |
6496 | ||
6497 | if (this_len > MAX_TX_DESC_LEN) | |
6498 | this_len = MAX_TX_DESC_LEN; | |
6499 | ||
6500 | niu_set_txd(rp, prod, mapping, this_len, mrk, nfg); | |
6501 | mrk = nfg = 0; | |
6502 | ||
6503 | prod = NEXT_TX(rp, prod); | |
6504 | mapping += this_len; | |
6505 | len -= this_len; | |
6506 | } | |
6507 | ||
6508 | for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) { | |
6509 | skb_frag_t *frag = &skb_shinfo(skb)->frags[i]; | |
6510 | ||
6511 | len = frag->size; | |
6512 | mapping = np->ops->map_page(np->device, frag->page, | |
6513 | frag->page_offset, len, | |
6514 | DMA_TO_DEVICE); | |
6515 | ||
6516 | rp->tx_buffs[prod].skb = NULL; | |
6517 | rp->tx_buffs[prod].mapping = mapping; | |
6518 | ||
6519 | niu_set_txd(rp, prod, mapping, len, 0, 0); | |
6520 | ||
6521 | prod = NEXT_TX(rp, prod); | |
6522 | } | |
6523 | ||
6524 | if (prod < rp->prod) | |
6525 | rp->wrap_bit ^= TX_RING_KICK_WRAP; | |
6526 | rp->prod = prod; | |
6527 | ||
6528 | nw64(TX_RING_KICK(rp->tx_channel), rp->wrap_bit | (prod << 3)); | |
6529 | ||
6530 | if (unlikely(niu_tx_avail(rp) <= (MAX_SKB_FRAGS + 1))) { | |
b4c21639 | 6531 | netif_tx_stop_queue(txq); |
a3138df9 | 6532 | if (niu_tx_avail(rp) > NIU_TX_WAKEUP_THRESH(rp)) |
b4c21639 | 6533 | netif_tx_wake_queue(txq); |
a3138df9 DM |
6534 | } |
6535 | ||
6536 | dev->trans_start = jiffies; | |
6537 | ||
6538 | out: | |
6539 | return NETDEV_TX_OK; | |
6540 | ||
6541 | out_drop: | |
6542 | rp->tx_errors++; | |
6543 | kfree_skb(skb); | |
6544 | goto out; | |
6545 | } | |
6546 | ||
6547 | static int niu_change_mtu(struct net_device *dev, int new_mtu) | |
6548 | { | |
6549 | struct niu *np = netdev_priv(dev); | |
6550 | int err, orig_jumbo, new_jumbo; | |
6551 | ||
6552 | if (new_mtu < 68 || new_mtu > NIU_MAX_MTU) | |
6553 | return -EINVAL; | |
6554 | ||
6555 | orig_jumbo = (dev->mtu > ETH_DATA_LEN); | |
6556 | new_jumbo = (new_mtu > ETH_DATA_LEN); | |
6557 | ||
6558 | dev->mtu = new_mtu; | |
6559 | ||
6560 | if (!netif_running(dev) || | |
6561 | (orig_jumbo == new_jumbo)) | |
6562 | return 0; | |
6563 | ||
6564 | niu_full_shutdown(np, dev); | |
6565 | ||
6566 | niu_free_channels(np); | |
6567 | ||
6568 | niu_enable_napi(np); | |
6569 | ||
6570 | err = niu_alloc_channels(np); | |
6571 | if (err) | |
6572 | return err; | |
6573 | ||
6574 | spin_lock_irq(&np->lock); | |
6575 | ||
6576 | err = niu_init_hw(np); | |
6577 | if (!err) { | |
6578 | init_timer(&np->timer); | |
6579 | np->timer.expires = jiffies + HZ; | |
6580 | np->timer.data = (unsigned long) np; | |
6581 | np->timer.function = niu_timer; | |
6582 | ||
6583 | err = niu_enable_interrupts(np, 1); | |
6584 | if (err) | |
6585 | niu_stop_hw(np); | |
6586 | } | |
6587 | ||
6588 | spin_unlock_irq(&np->lock); | |
6589 | ||
6590 | if (!err) { | |
b4c21639 | 6591 | netif_tx_start_all_queues(dev); |
a3138df9 DM |
6592 | if (np->link_config.loopback_mode != LOOPBACK_DISABLED) |
6593 | netif_carrier_on(dev); | |
6594 | ||
6595 | add_timer(&np->timer); | |
6596 | } | |
6597 | ||
6598 | return err; | |
6599 | } | |
6600 | ||
6601 | static void niu_get_drvinfo(struct net_device *dev, | |
6602 | struct ethtool_drvinfo *info) | |
6603 | { | |
6604 | struct niu *np = netdev_priv(dev); | |
6605 | struct niu_vpd *vpd = &np->vpd; | |
6606 | ||
6607 | strcpy(info->driver, DRV_MODULE_NAME); | |
6608 | strcpy(info->version, DRV_MODULE_VERSION); | |
6609 | sprintf(info->fw_version, "%d.%d", | |
6610 | vpd->fcode_major, vpd->fcode_minor); | |
6611 | if (np->parent->plat_type != PLAT_TYPE_NIU) | |
6612 | strcpy(info->bus_info, pci_name(np->pdev)); | |
6613 | } | |
6614 | ||
6615 | static int niu_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) | |
6616 | { | |
6617 | struct niu *np = netdev_priv(dev); | |
6618 | struct niu_link_config *lp; | |
6619 | ||
6620 | lp = &np->link_config; | |
6621 | ||
6622 | memset(cmd, 0, sizeof(*cmd)); | |
6623 | cmd->phy_address = np->phy_addr; | |
6624 | cmd->supported = lp->supported; | |
6625 | cmd->advertising = lp->advertising; | |
6626 | cmd->autoneg = lp->autoneg; | |
6627 | cmd->speed = lp->active_speed; | |
6628 | cmd->duplex = lp->active_duplex; | |
6629 | ||
6630 | return 0; | |
6631 | } | |
6632 | ||
6633 | static int niu_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) | |
6634 | { | |
6635 | return -EINVAL; | |
6636 | } | |
6637 | ||
6638 | static u32 niu_get_msglevel(struct net_device *dev) | |
6639 | { | |
6640 | struct niu *np = netdev_priv(dev); | |
6641 | return np->msg_enable; | |
6642 | } | |
6643 | ||
6644 | static void niu_set_msglevel(struct net_device *dev, u32 value) | |
6645 | { | |
6646 | struct niu *np = netdev_priv(dev); | |
6647 | np->msg_enable = value; | |
6648 | } | |
6649 | ||
6650 | static int niu_get_eeprom_len(struct net_device *dev) | |
6651 | { | |
6652 | struct niu *np = netdev_priv(dev); | |
6653 | ||
6654 | return np->eeprom_len; | |
6655 | } | |
6656 | ||
6657 | static int niu_get_eeprom(struct net_device *dev, | |
6658 | struct ethtool_eeprom *eeprom, u8 *data) | |
6659 | { | |
6660 | struct niu *np = netdev_priv(dev); | |
6661 | u32 offset, len, val; | |
6662 | ||
6663 | offset = eeprom->offset; | |
6664 | len = eeprom->len; | |
6665 | ||
6666 | if (offset + len < offset) | |
6667 | return -EINVAL; | |
6668 | if (offset >= np->eeprom_len) | |
6669 | return -EINVAL; | |
6670 | if (offset + len > np->eeprom_len) | |
6671 | len = eeprom->len = np->eeprom_len - offset; | |
6672 | ||
6673 | if (offset & 3) { | |
6674 | u32 b_offset, b_count; | |
6675 | ||
6676 | b_offset = offset & 3; | |
6677 | b_count = 4 - b_offset; | |
6678 | if (b_count > len) | |
6679 | b_count = len; | |
6680 | ||
6681 | val = nr64(ESPC_NCR((offset - b_offset) / 4)); | |
6682 | memcpy(data, ((char *)&val) + b_offset, b_count); | |
6683 | data += b_count; | |
6684 | len -= b_count; | |
6685 | offset += b_count; | |
6686 | } | |
6687 | while (len >= 4) { | |
6688 | val = nr64(ESPC_NCR(offset / 4)); | |
6689 | memcpy(data, &val, 4); | |
6690 | data += 4; | |
6691 | len -= 4; | |
6692 | offset += 4; | |
6693 | } | |
6694 | if (len) { | |
6695 | val = nr64(ESPC_NCR(offset / 4)); | |
6696 | memcpy(data, &val, len); | |
6697 | } | |
6698 | return 0; | |
6699 | } | |
6700 | ||
b4653e99 SB |
6701 | static int niu_ethflow_to_class(int flow_type, u64 *class) |
6702 | { | |
6703 | switch (flow_type) { | |
6704 | case TCP_V4_FLOW: | |
6705 | *class = CLASS_CODE_TCP_IPV4; | |
6706 | break; | |
6707 | case UDP_V4_FLOW: | |
6708 | *class = CLASS_CODE_UDP_IPV4; | |
6709 | break; | |
6710 | case AH_ESP_V4_FLOW: | |
6711 | *class = CLASS_CODE_AH_ESP_IPV4; | |
6712 | break; | |
6713 | case SCTP_V4_FLOW: | |
6714 | *class = CLASS_CODE_SCTP_IPV4; | |
6715 | break; | |
6716 | case TCP_V6_FLOW: | |
6717 | *class = CLASS_CODE_TCP_IPV6; | |
6718 | break; | |
6719 | case UDP_V6_FLOW: | |
6720 | *class = CLASS_CODE_UDP_IPV6; | |
6721 | break; | |
6722 | case AH_ESP_V6_FLOW: | |
6723 | *class = CLASS_CODE_AH_ESP_IPV6; | |
6724 | break; | |
6725 | case SCTP_V6_FLOW: | |
6726 | *class = CLASS_CODE_SCTP_IPV6; | |
6727 | break; | |
6728 | default: | |
38c080ff | 6729 | return 0; |
b4653e99 SB |
6730 | } |
6731 | ||
6732 | return 1; | |
6733 | } | |
6734 | ||
6735 | static u64 niu_flowkey_to_ethflow(u64 flow_key) | |
6736 | { | |
6737 | u64 ethflow = 0; | |
6738 | ||
6739 | if (flow_key & FLOW_KEY_PORT) | |
6740 | ethflow |= RXH_DEV_PORT; | |
6741 | if (flow_key & FLOW_KEY_L2DA) | |
6742 | ethflow |= RXH_L2DA; | |
6743 | if (flow_key & FLOW_KEY_VLAN) | |
6744 | ethflow |= RXH_VLAN; | |
6745 | if (flow_key & FLOW_KEY_IPSA) | |
6746 | ethflow |= RXH_IP_SRC; | |
6747 | if (flow_key & FLOW_KEY_IPDA) | |
6748 | ethflow |= RXH_IP_DST; | |
6749 | if (flow_key & FLOW_KEY_PROTO) | |
6750 | ethflow |= RXH_L3_PROTO; | |
6751 | if (flow_key & (FLOW_KEY_L4_BYTE12 << FLOW_KEY_L4_0_SHIFT)) | |
6752 | ethflow |= RXH_L4_B_0_1; | |
6753 | if (flow_key & (FLOW_KEY_L4_BYTE12 << FLOW_KEY_L4_1_SHIFT)) | |
6754 | ethflow |= RXH_L4_B_2_3; | |
6755 | ||
6756 | return ethflow; | |
6757 | ||
6758 | } | |
6759 | ||
6760 | static int niu_ethflow_to_flowkey(u64 ethflow, u64 *flow_key) | |
6761 | { | |
6762 | u64 key = 0; | |
6763 | ||
6764 | if (ethflow & RXH_DEV_PORT) | |
6765 | key |= FLOW_KEY_PORT; | |
6766 | if (ethflow & RXH_L2DA) | |
6767 | key |= FLOW_KEY_L2DA; | |
6768 | if (ethflow & RXH_VLAN) | |
6769 | key |= FLOW_KEY_VLAN; | |
6770 | if (ethflow & RXH_IP_SRC) | |
6771 | key |= FLOW_KEY_IPSA; | |
6772 | if (ethflow & RXH_IP_DST) | |
6773 | key |= FLOW_KEY_IPDA; | |
6774 | if (ethflow & RXH_L3_PROTO) | |
6775 | key |= FLOW_KEY_PROTO; | |
6776 | if (ethflow & RXH_L4_B_0_1) | |
6777 | key |= (FLOW_KEY_L4_BYTE12 << FLOW_KEY_L4_0_SHIFT); | |
6778 | if (ethflow & RXH_L4_B_2_3) | |
6779 | key |= (FLOW_KEY_L4_BYTE12 << FLOW_KEY_L4_1_SHIFT); | |
6780 | ||
6781 | *flow_key = key; | |
6782 | ||
6783 | return 1; | |
6784 | ||
6785 | } | |
6786 | ||
6787 | static int niu_get_hash_opts(struct net_device *dev, struct ethtool_rxnfc *cmd) | |
6788 | { | |
6789 | struct niu *np = netdev_priv(dev); | |
6790 | u64 class; | |
6791 | ||
6792 | cmd->data = 0; | |
6793 | ||
6794 | if (!niu_ethflow_to_class(cmd->flow_type, &class)) | |
6795 | return -EINVAL; | |
6796 | ||
6797 | if (np->parent->tcam_key[class - CLASS_CODE_USER_PROG1] & | |
6798 | TCAM_KEY_DISC) | |
6799 | cmd->data = RXH_DISCARD; | |
6800 | else | |
6801 | ||
6802 | cmd->data = niu_flowkey_to_ethflow(np->parent->flow_key[class - | |
6803 | CLASS_CODE_USER_PROG1]); | |
6804 | return 0; | |
6805 | } | |
6806 | ||
6807 | static int niu_set_hash_opts(struct net_device *dev, struct ethtool_rxnfc *cmd) | |
6808 | { | |
6809 | struct niu *np = netdev_priv(dev); | |
6810 | u64 class; | |
6811 | u64 flow_key = 0; | |
6812 | unsigned long flags; | |
6813 | ||
6814 | if (!niu_ethflow_to_class(cmd->flow_type, &class)) | |
6815 | return -EINVAL; | |
6816 | ||
6817 | if (class < CLASS_CODE_USER_PROG1 || | |
6818 | class > CLASS_CODE_SCTP_IPV6) | |
6819 | return -EINVAL; | |
6820 | ||
6821 | if (cmd->data & RXH_DISCARD) { | |
6822 | niu_lock_parent(np, flags); | |
6823 | flow_key = np->parent->tcam_key[class - | |
6824 | CLASS_CODE_USER_PROG1]; | |
6825 | flow_key |= TCAM_KEY_DISC; | |
6826 | nw64(TCAM_KEY(class - CLASS_CODE_USER_PROG1), flow_key); | |
6827 | np->parent->tcam_key[class - CLASS_CODE_USER_PROG1] = flow_key; | |
6828 | niu_unlock_parent(np, flags); | |
6829 | return 0; | |
6830 | } else { | |
6831 | /* Discard was set before, but is not set now */ | |
6832 | if (np->parent->tcam_key[class - CLASS_CODE_USER_PROG1] & | |
6833 | TCAM_KEY_DISC) { | |
6834 | niu_lock_parent(np, flags); | |
6835 | flow_key = np->parent->tcam_key[class - | |
6836 | CLASS_CODE_USER_PROG1]; | |
6837 | flow_key &= ~TCAM_KEY_DISC; | |
6838 | nw64(TCAM_KEY(class - CLASS_CODE_USER_PROG1), | |
6839 | flow_key); | |
6840 | np->parent->tcam_key[class - CLASS_CODE_USER_PROG1] = | |
6841 | flow_key; | |
6842 | niu_unlock_parent(np, flags); | |
6843 | } | |
6844 | } | |
6845 | ||
6846 | if (!niu_ethflow_to_flowkey(cmd->data, &flow_key)) | |
6847 | return -EINVAL; | |
6848 | ||
6849 | niu_lock_parent(np, flags); | |
6850 | nw64(FLOW_KEY(class - CLASS_CODE_USER_PROG1), flow_key); | |
6851 | np->parent->flow_key[class - CLASS_CODE_USER_PROG1] = flow_key; | |
6852 | niu_unlock_parent(np, flags); | |
6853 | ||
6854 | return 0; | |
6855 | } | |
6856 | ||
a3138df9 DM |
6857 | static const struct { |
6858 | const char string[ETH_GSTRING_LEN]; | |
6859 | } niu_xmac_stat_keys[] = { | |
6860 | { "tx_frames" }, | |
6861 | { "tx_bytes" }, | |
6862 | { "tx_fifo_errors" }, | |
6863 | { "tx_overflow_errors" }, | |
6864 | { "tx_max_pkt_size_errors" }, | |
6865 | { "tx_underflow_errors" }, | |
6866 | { "rx_local_faults" }, | |
6867 | { "rx_remote_faults" }, | |
6868 | { "rx_link_faults" }, | |
6869 | { "rx_align_errors" }, | |
6870 | { "rx_frags" }, | |
6871 | { "rx_mcasts" }, | |
6872 | { "rx_bcasts" }, | |
6873 | { "rx_hist_cnt1" }, | |
6874 | { "rx_hist_cnt2" }, | |
6875 | { "rx_hist_cnt3" }, | |
6876 | { "rx_hist_cnt4" }, | |
6877 | { "rx_hist_cnt5" }, | |
6878 | { "rx_hist_cnt6" }, | |
6879 | { "rx_hist_cnt7" }, | |
6880 | { "rx_octets" }, | |
6881 | { "rx_code_violations" }, | |
6882 | { "rx_len_errors" }, | |
6883 | { "rx_crc_errors" }, | |
6884 | { "rx_underflows" }, | |
6885 | { "rx_overflows" }, | |
6886 | { "pause_off_state" }, | |
6887 | { "pause_on_state" }, | |
6888 | { "pause_received" }, | |
6889 | }; | |
6890 | ||
6891 | #define NUM_XMAC_STAT_KEYS ARRAY_SIZE(niu_xmac_stat_keys) | |
6892 | ||
6893 | static const struct { | |
6894 | const char string[ETH_GSTRING_LEN]; | |
6895 | } niu_bmac_stat_keys[] = { | |
6896 | { "tx_underflow_errors" }, | |
6897 | { "tx_max_pkt_size_errors" }, | |
6898 | { "tx_bytes" }, | |
6899 | { "tx_frames" }, | |
6900 | { "rx_overflows" }, | |
6901 | { "rx_frames" }, | |
6902 | { "rx_align_errors" }, | |
6903 | { "rx_crc_errors" }, | |
6904 | { "rx_len_errors" }, | |
6905 | { "pause_off_state" }, | |
6906 | { "pause_on_state" }, | |
6907 | { "pause_received" }, | |
6908 | }; | |
6909 | ||
6910 | #define NUM_BMAC_STAT_KEYS ARRAY_SIZE(niu_bmac_stat_keys) | |
6911 | ||
6912 | static const struct { | |
6913 | const char string[ETH_GSTRING_LEN]; | |
6914 | } niu_rxchan_stat_keys[] = { | |
6915 | { "rx_channel" }, | |
6916 | { "rx_packets" }, | |
6917 | { "rx_bytes" }, | |
6918 | { "rx_dropped" }, | |
6919 | { "rx_errors" }, | |
6920 | }; | |
6921 | ||
6922 | #define NUM_RXCHAN_STAT_KEYS ARRAY_SIZE(niu_rxchan_stat_keys) | |
6923 | ||
6924 | static const struct { | |
6925 | const char string[ETH_GSTRING_LEN]; | |
6926 | } niu_txchan_stat_keys[] = { | |
6927 | { "tx_channel" }, | |
6928 | { "tx_packets" }, | |
6929 | { "tx_bytes" }, | |
6930 | { "tx_errors" }, | |
6931 | }; | |
6932 | ||
6933 | #define NUM_TXCHAN_STAT_KEYS ARRAY_SIZE(niu_txchan_stat_keys) | |
6934 | ||
6935 | static void niu_get_strings(struct net_device *dev, u32 stringset, u8 *data) | |
6936 | { | |
6937 | struct niu *np = netdev_priv(dev); | |
6938 | int i; | |
6939 | ||
6940 | if (stringset != ETH_SS_STATS) | |
6941 | return; | |
6942 | ||
6943 | if (np->flags & NIU_FLAGS_XMAC) { | |
6944 | memcpy(data, niu_xmac_stat_keys, | |
6945 | sizeof(niu_xmac_stat_keys)); | |
6946 | data += sizeof(niu_xmac_stat_keys); | |
6947 | } else { | |
6948 | memcpy(data, niu_bmac_stat_keys, | |
6949 | sizeof(niu_bmac_stat_keys)); | |
6950 | data += sizeof(niu_bmac_stat_keys); | |
6951 | } | |
6952 | for (i = 0; i < np->num_rx_rings; i++) { | |
6953 | memcpy(data, niu_rxchan_stat_keys, | |
6954 | sizeof(niu_rxchan_stat_keys)); | |
6955 | data += sizeof(niu_rxchan_stat_keys); | |
6956 | } | |
6957 | for (i = 0; i < np->num_tx_rings; i++) { | |
6958 | memcpy(data, niu_txchan_stat_keys, | |
6959 | sizeof(niu_txchan_stat_keys)); | |
6960 | data += sizeof(niu_txchan_stat_keys); | |
6961 | } | |
6962 | } | |
6963 | ||
6964 | static int niu_get_stats_count(struct net_device *dev) | |
6965 | { | |
6966 | struct niu *np = netdev_priv(dev); | |
6967 | ||
6968 | return ((np->flags & NIU_FLAGS_XMAC ? | |
6969 | NUM_XMAC_STAT_KEYS : | |
6970 | NUM_BMAC_STAT_KEYS) + | |
6971 | (np->num_rx_rings * NUM_RXCHAN_STAT_KEYS) + | |
6972 | (np->num_tx_rings * NUM_TXCHAN_STAT_KEYS)); | |
6973 | } | |
6974 | ||
6975 | static void niu_get_ethtool_stats(struct net_device *dev, | |
6976 | struct ethtool_stats *stats, u64 *data) | |
6977 | { | |
6978 | struct niu *np = netdev_priv(dev); | |
6979 | int i; | |
6980 | ||
6981 | niu_sync_mac_stats(np); | |
6982 | if (np->flags & NIU_FLAGS_XMAC) { | |
6983 | memcpy(data, &np->mac_stats.xmac, | |
6984 | sizeof(struct niu_xmac_stats)); | |
6985 | data += (sizeof(struct niu_xmac_stats) / sizeof(u64)); | |
6986 | } else { | |
6987 | memcpy(data, &np->mac_stats.bmac, | |
6988 | sizeof(struct niu_bmac_stats)); | |
6989 | data += (sizeof(struct niu_bmac_stats) / sizeof(u64)); | |
6990 | } | |
6991 | for (i = 0; i < np->num_rx_rings; i++) { | |
6992 | struct rx_ring_info *rp = &np->rx_rings[i]; | |
6993 | ||
6994 | data[0] = rp->rx_channel; | |
6995 | data[1] = rp->rx_packets; | |
6996 | data[2] = rp->rx_bytes; | |
6997 | data[3] = rp->rx_dropped; | |
6998 | data[4] = rp->rx_errors; | |
6999 | data += 5; | |
7000 | } | |
7001 | for (i = 0; i < np->num_tx_rings; i++) { | |
7002 | struct tx_ring_info *rp = &np->tx_rings[i]; | |
7003 | ||
7004 | data[0] = rp->tx_channel; | |
7005 | data[1] = rp->tx_packets; | |
7006 | data[2] = rp->tx_bytes; | |
7007 | data[3] = rp->tx_errors; | |
7008 | data += 4; | |
7009 | } | |
7010 | } | |
7011 | ||
7012 | static u64 niu_led_state_save(struct niu *np) | |
7013 | { | |
7014 | if (np->flags & NIU_FLAGS_XMAC) | |
7015 | return nr64_mac(XMAC_CONFIG); | |
7016 | else | |
7017 | return nr64_mac(BMAC_XIF_CONFIG); | |
7018 | } | |
7019 | ||
7020 | static void niu_led_state_restore(struct niu *np, u64 val) | |
7021 | { | |
7022 | if (np->flags & NIU_FLAGS_XMAC) | |
7023 | nw64_mac(XMAC_CONFIG, val); | |
7024 | else | |
7025 | nw64_mac(BMAC_XIF_CONFIG, val); | |
7026 | } | |
7027 | ||
7028 | static void niu_force_led(struct niu *np, int on) | |
7029 | { | |
7030 | u64 val, reg, bit; | |
7031 | ||
7032 | if (np->flags & NIU_FLAGS_XMAC) { | |
7033 | reg = XMAC_CONFIG; | |
7034 | bit = XMAC_CONFIG_FORCE_LED_ON; | |
7035 | } else { | |
7036 | reg = BMAC_XIF_CONFIG; | |
7037 | bit = BMAC_XIF_CONFIG_LINK_LED; | |
7038 | } | |
7039 | ||
7040 | val = nr64_mac(reg); | |
7041 | if (on) | |
7042 | val |= bit; | |
7043 | else | |
7044 | val &= ~bit; | |
7045 | nw64_mac(reg, val); | |
7046 | } | |
7047 | ||
7048 | static int niu_phys_id(struct net_device *dev, u32 data) | |
7049 | { | |
7050 | struct niu *np = netdev_priv(dev); | |
7051 | u64 orig_led_state; | |
7052 | int i; | |
7053 | ||
7054 | if (!netif_running(dev)) | |
7055 | return -EAGAIN; | |
7056 | ||
7057 | if (data == 0) | |
7058 | data = 2; | |
7059 | ||
7060 | orig_led_state = niu_led_state_save(np); | |
7061 | for (i = 0; i < (data * 2); i++) { | |
7062 | int on = ((i % 2) == 0); | |
7063 | ||
7064 | niu_force_led(np, on); | |
7065 | ||
7066 | if (msleep_interruptible(500)) | |
7067 | break; | |
7068 | } | |
7069 | niu_led_state_restore(np, orig_led_state); | |
7070 | ||
7071 | return 0; | |
7072 | } | |
7073 | ||
7074 | static const struct ethtool_ops niu_ethtool_ops = { | |
7075 | .get_drvinfo = niu_get_drvinfo, | |
7076 | .get_link = ethtool_op_get_link, | |
7077 | .get_msglevel = niu_get_msglevel, | |
7078 | .set_msglevel = niu_set_msglevel, | |
7079 | .get_eeprom_len = niu_get_eeprom_len, | |
7080 | .get_eeprom = niu_get_eeprom, | |
7081 | .get_settings = niu_get_settings, | |
7082 | .set_settings = niu_set_settings, | |
7083 | .get_strings = niu_get_strings, | |
7084 | .get_stats_count = niu_get_stats_count, | |
7085 | .get_ethtool_stats = niu_get_ethtool_stats, | |
7086 | .phys_id = niu_phys_id, | |
b4653e99 SB |
7087 | .get_rxhash = niu_get_hash_opts, |
7088 | .set_rxhash = niu_set_hash_opts, | |
a3138df9 DM |
7089 | }; |
7090 | ||
7091 | static int niu_ldg_assign_ldn(struct niu *np, struct niu_parent *parent, | |
7092 | int ldg, int ldn) | |
7093 | { | |
7094 | if (ldg < NIU_LDG_MIN || ldg > NIU_LDG_MAX) | |
7095 | return -EINVAL; | |
7096 | if (ldn < 0 || ldn > LDN_MAX) | |
7097 | return -EINVAL; | |
7098 | ||
7099 | parent->ldg_map[ldn] = ldg; | |
7100 | ||
7101 | if (np->parent->plat_type == PLAT_TYPE_NIU) { | |
7102 | /* On N2 NIU, the ldn-->ldg assignments are setup and fixed by | |
7103 | * the firmware, and we're not supposed to change them. | |
7104 | * Validate the mapping, because if it's wrong we probably | |
7105 | * won't get any interrupts and that's painful to debug. | |
7106 | */ | |
7107 | if (nr64(LDG_NUM(ldn)) != ldg) { | |
7108 | dev_err(np->device, PFX "Port %u, mis-matched " | |
7109 | "LDG assignment " | |
7110 | "for ldn %d, should be %d is %llu\n", | |
7111 | np->port, ldn, ldg, | |
7112 | (unsigned long long) nr64(LDG_NUM(ldn))); | |
7113 | return -EINVAL; | |
7114 | } | |
7115 | } else | |
7116 | nw64(LDG_NUM(ldn), ldg); | |
7117 | ||
7118 | return 0; | |
7119 | } | |
7120 | ||
7121 | static int niu_set_ldg_timer_res(struct niu *np, int res) | |
7122 | { | |
7123 | if (res < 0 || res > LDG_TIMER_RES_VAL) | |
7124 | return -EINVAL; | |
7125 | ||
7126 | ||
7127 | nw64(LDG_TIMER_RES, res); | |
7128 | ||
7129 | return 0; | |
7130 | } | |
7131 | ||
7132 | static int niu_set_ldg_sid(struct niu *np, int ldg, int func, int vector) | |
7133 | { | |
7134 | if ((ldg < NIU_LDG_MIN || ldg > NIU_LDG_MAX) || | |
7135 | (func < 0 || func > 3) || | |
7136 | (vector < 0 || vector > 0x1f)) | |
7137 | return -EINVAL; | |
7138 | ||
7139 | nw64(SID(ldg), (func << SID_FUNC_SHIFT) | vector); | |
7140 | ||
7141 | return 0; | |
7142 | } | |
7143 | ||
7144 | static int __devinit niu_pci_eeprom_read(struct niu *np, u32 addr) | |
7145 | { | |
7146 | u64 frame, frame_base = (ESPC_PIO_STAT_READ_START | | |
7147 | (addr << ESPC_PIO_STAT_ADDR_SHIFT)); | |
7148 | int limit; | |
7149 | ||
7150 | if (addr > (ESPC_PIO_STAT_ADDR >> ESPC_PIO_STAT_ADDR_SHIFT)) | |
7151 | return -EINVAL; | |
7152 | ||
7153 | frame = frame_base; | |
7154 | nw64(ESPC_PIO_STAT, frame); | |
7155 | limit = 64; | |
7156 | do { | |
7157 | udelay(5); | |
7158 | frame = nr64(ESPC_PIO_STAT); | |
7159 | if (frame & ESPC_PIO_STAT_READ_END) | |
7160 | break; | |
7161 | } while (limit--); | |
7162 | if (!(frame & ESPC_PIO_STAT_READ_END)) { | |
7163 | dev_err(np->device, PFX "EEPROM read timeout frame[%llx]\n", | |
7164 | (unsigned long long) frame); | |
7165 | return -ENODEV; | |
7166 | } | |
7167 | ||
7168 | frame = frame_base; | |
7169 | nw64(ESPC_PIO_STAT, frame); | |
7170 | limit = 64; | |
7171 | do { | |
7172 | udelay(5); | |
7173 | frame = nr64(ESPC_PIO_STAT); | |
7174 | if (frame & ESPC_PIO_STAT_READ_END) | |
7175 | break; | |
7176 | } while (limit--); | |
7177 | if (!(frame & ESPC_PIO_STAT_READ_END)) { | |
7178 | dev_err(np->device, PFX "EEPROM read timeout frame[%llx]\n", | |
7179 | (unsigned long long) frame); | |
7180 | return -ENODEV; | |
7181 | } | |
7182 | ||
7183 | frame = nr64(ESPC_PIO_STAT); | |
7184 | return (frame & ESPC_PIO_STAT_DATA) >> ESPC_PIO_STAT_DATA_SHIFT; | |
7185 | } | |
7186 | ||
7187 | static int __devinit niu_pci_eeprom_read16(struct niu *np, u32 off) | |
7188 | { | |
7189 | int err = niu_pci_eeprom_read(np, off); | |
7190 | u16 val; | |
7191 | ||
7192 | if (err < 0) | |
7193 | return err; | |
7194 | val = (err << 8); | |
7195 | err = niu_pci_eeprom_read(np, off + 1); | |
7196 | if (err < 0) | |
7197 | return err; | |
7198 | val |= (err & 0xff); | |
7199 | ||
7200 | return val; | |
7201 | } | |
7202 | ||
7203 | static int __devinit niu_pci_eeprom_read16_swp(struct niu *np, u32 off) | |
7204 | { | |
7205 | int err = niu_pci_eeprom_read(np, off); | |
7206 | u16 val; | |
7207 | ||
7208 | if (err < 0) | |
7209 | return err; | |
7210 | ||
7211 | val = (err & 0xff); | |
7212 | err = niu_pci_eeprom_read(np, off + 1); | |
7213 | if (err < 0) | |
7214 | return err; | |
7215 | ||
7216 | val |= (err & 0xff) << 8; | |
7217 | ||
7218 | return val; | |
7219 | } | |
7220 | ||
7221 | static int __devinit niu_pci_vpd_get_propname(struct niu *np, | |
7222 | u32 off, | |
7223 | char *namebuf, | |
7224 | int namebuf_len) | |
7225 | { | |
7226 | int i; | |
7227 | ||
7228 | for (i = 0; i < namebuf_len; i++) { | |
7229 | int err = niu_pci_eeprom_read(np, off + i); | |
7230 | if (err < 0) | |
7231 | return err; | |
7232 | *namebuf++ = err; | |
7233 | if (!err) | |
7234 | break; | |
7235 | } | |
7236 | if (i >= namebuf_len) | |
7237 | return -EINVAL; | |
7238 | ||
7239 | return i + 1; | |
7240 | } | |
7241 | ||
7242 | static void __devinit niu_vpd_parse_version(struct niu *np) | |
7243 | { | |
7244 | struct niu_vpd *vpd = &np->vpd; | |
7245 | int len = strlen(vpd->version) + 1; | |
7246 | const char *s = vpd->version; | |
7247 | int i; | |
7248 | ||
7249 | for (i = 0; i < len - 5; i++) { | |
7250 | if (!strncmp(s + i, "FCode ", 5)) | |
7251 | break; | |
7252 | } | |
7253 | if (i >= len - 5) | |
7254 | return; | |
7255 | ||
7256 | s += i + 5; | |
7257 | sscanf(s, "%d.%d", &vpd->fcode_major, &vpd->fcode_minor); | |
7258 | ||
7259 | niudbg(PROBE, "VPD_SCAN: FCODE major(%d) minor(%d)\n", | |
7260 | vpd->fcode_major, vpd->fcode_minor); | |
7261 | if (vpd->fcode_major > NIU_VPD_MIN_MAJOR || | |
7262 | (vpd->fcode_major == NIU_VPD_MIN_MAJOR && | |
7263 | vpd->fcode_minor >= NIU_VPD_MIN_MINOR)) | |
7264 | np->flags |= NIU_FLAGS_VPD_VALID; | |
7265 | } | |
7266 | ||
7267 | /* ESPC_PIO_EN_ENABLE must be set */ | |
7268 | static int __devinit niu_pci_vpd_scan_props(struct niu *np, | |
7269 | u32 start, u32 end) | |
7270 | { | |
7271 | unsigned int found_mask = 0; | |
7272 | #define FOUND_MASK_MODEL 0x00000001 | |
7273 | #define FOUND_MASK_BMODEL 0x00000002 | |
7274 | #define FOUND_MASK_VERS 0x00000004 | |
7275 | #define FOUND_MASK_MAC 0x00000008 | |
7276 | #define FOUND_MASK_NMAC 0x00000010 | |
7277 | #define FOUND_MASK_PHY 0x00000020 | |
7278 | #define FOUND_MASK_ALL 0x0000003f | |
7279 | ||
7280 | niudbg(PROBE, "VPD_SCAN: start[%x] end[%x]\n", | |
7281 | start, end); | |
7282 | while (start < end) { | |
7283 | int len, err, instance, type, prop_len; | |
7284 | char namebuf[64]; | |
7285 | u8 *prop_buf; | |
7286 | int max_len; | |
7287 | ||
7288 | if (found_mask == FOUND_MASK_ALL) { | |
7289 | niu_vpd_parse_version(np); | |
7290 | return 1; | |
7291 | } | |
7292 | ||
7293 | err = niu_pci_eeprom_read(np, start + 2); | |
7294 | if (err < 0) | |
7295 | return err; | |
7296 | len = err; | |
7297 | start += 3; | |
7298 | ||
7299 | instance = niu_pci_eeprom_read(np, start); | |
7300 | type = niu_pci_eeprom_read(np, start + 3); | |
7301 | prop_len = niu_pci_eeprom_read(np, start + 4); | |
7302 | err = niu_pci_vpd_get_propname(np, start + 5, namebuf, 64); | |
7303 | if (err < 0) | |
7304 | return err; | |
7305 | ||
7306 | prop_buf = NULL; | |
7307 | max_len = 0; | |
7308 | if (!strcmp(namebuf, "model")) { | |
7309 | prop_buf = np->vpd.model; | |
7310 | max_len = NIU_VPD_MODEL_MAX; | |
7311 | found_mask |= FOUND_MASK_MODEL; | |
7312 | } else if (!strcmp(namebuf, "board-model")) { | |
7313 | prop_buf = np->vpd.board_model; | |
7314 | max_len = NIU_VPD_BD_MODEL_MAX; | |
7315 | found_mask |= FOUND_MASK_BMODEL; | |
7316 | } else if (!strcmp(namebuf, "version")) { | |
7317 | prop_buf = np->vpd.version; | |
7318 | max_len = NIU_VPD_VERSION_MAX; | |
7319 | found_mask |= FOUND_MASK_VERS; | |
7320 | } else if (!strcmp(namebuf, "local-mac-address")) { | |
7321 | prop_buf = np->vpd.local_mac; | |
7322 | max_len = ETH_ALEN; | |
7323 | found_mask |= FOUND_MASK_MAC; | |
7324 | } else if (!strcmp(namebuf, "num-mac-addresses")) { | |
7325 | prop_buf = &np->vpd.mac_num; | |
7326 | max_len = 1; | |
7327 | found_mask |= FOUND_MASK_NMAC; | |
7328 | } else if (!strcmp(namebuf, "phy-type")) { | |
7329 | prop_buf = np->vpd.phy_type; | |
7330 | max_len = NIU_VPD_PHY_TYPE_MAX; | |
7331 | found_mask |= FOUND_MASK_PHY; | |
7332 | } | |
7333 | ||
7334 | if (max_len && prop_len > max_len) { | |
7335 | dev_err(np->device, PFX "Property '%s' length (%d) is " | |
7336 | "too long.\n", namebuf, prop_len); | |
7337 | return -EINVAL; | |
7338 | } | |
7339 | ||
7340 | if (prop_buf) { | |
7341 | u32 off = start + 5 + err; | |
7342 | int i; | |
7343 | ||
7344 | niudbg(PROBE, "VPD_SCAN: Reading in property [%s] " | |
7345 | "len[%d]\n", namebuf, prop_len); | |
7346 | for (i = 0; i < prop_len; i++) | |
7347 | *prop_buf++ = niu_pci_eeprom_read(np, off + i); | |
7348 | } | |
7349 | ||
7350 | start += len; | |
7351 | } | |
7352 | ||
7353 | return 0; | |
7354 | } | |
7355 | ||
7356 | /* ESPC_PIO_EN_ENABLE must be set */ | |
7357 | static void __devinit niu_pci_vpd_fetch(struct niu *np, u32 start) | |
7358 | { | |
7359 | u32 offset; | |
7360 | int err; | |
7361 | ||
7362 | err = niu_pci_eeprom_read16_swp(np, start + 1); | |
7363 | if (err < 0) | |
7364 | return; | |
7365 | ||
7366 | offset = err + 3; | |
7367 | ||
7368 | while (start + offset < ESPC_EEPROM_SIZE) { | |
7369 | u32 here = start + offset; | |
7370 | u32 end; | |
7371 | ||
7372 | err = niu_pci_eeprom_read(np, here); | |
7373 | if (err != 0x90) | |
7374 | return; | |
7375 | ||
7376 | err = niu_pci_eeprom_read16_swp(np, here + 1); | |
7377 | if (err < 0) | |
7378 | return; | |
7379 | ||
7380 | here = start + offset + 3; | |
7381 | end = start + offset + err; | |
7382 | ||
7383 | offset += err; | |
7384 | ||
7385 | err = niu_pci_vpd_scan_props(np, here, end); | |
7386 | if (err < 0 || err == 1) | |
7387 | return; | |
7388 | } | |
7389 | } | |
7390 | ||
7391 | /* ESPC_PIO_EN_ENABLE must be set */ | |
7392 | static u32 __devinit niu_pci_vpd_offset(struct niu *np) | |
7393 | { | |
7394 | u32 start = 0, end = ESPC_EEPROM_SIZE, ret; | |
7395 | int err; | |
7396 | ||
7397 | while (start < end) { | |
7398 | ret = start; | |
7399 | ||
7400 | /* ROM header signature? */ | |
7401 | err = niu_pci_eeprom_read16(np, start + 0); | |
7402 | if (err != 0x55aa) | |
7403 | return 0; | |
7404 | ||
7405 | /* Apply offset to PCI data structure. */ | |
7406 | err = niu_pci_eeprom_read16(np, start + 23); | |
7407 | if (err < 0) | |
7408 | return 0; | |
7409 | start += err; | |
7410 | ||
7411 | /* Check for "PCIR" signature. */ | |
7412 | err = niu_pci_eeprom_read16(np, start + 0); | |
7413 | if (err != 0x5043) | |
7414 | return 0; | |
7415 | err = niu_pci_eeprom_read16(np, start + 2); | |
7416 | if (err != 0x4952) | |
7417 | return 0; | |
7418 | ||
7419 | /* Check for OBP image type. */ | |
7420 | err = niu_pci_eeprom_read(np, start + 20); | |
7421 | if (err < 0) | |
7422 | return 0; | |
7423 | if (err != 0x01) { | |
7424 | err = niu_pci_eeprom_read(np, ret + 2); | |
7425 | if (err < 0) | |
7426 | return 0; | |
7427 | ||
7428 | start = ret + (err * 512); | |
7429 | continue; | |
7430 | } | |
7431 | ||
7432 | err = niu_pci_eeprom_read16_swp(np, start + 8); | |
7433 | if (err < 0) | |
7434 | return err; | |
7435 | ret += err; | |
7436 | ||
7437 | err = niu_pci_eeprom_read(np, ret + 0); | |
7438 | if (err != 0x82) | |
7439 | return 0; | |
7440 | ||
7441 | return ret; | |
7442 | } | |
7443 | ||
7444 | return 0; | |
7445 | } | |
7446 | ||
7447 | static int __devinit niu_phy_type_prop_decode(struct niu *np, | |
7448 | const char *phy_prop) | |
7449 | { | |
7450 | if (!strcmp(phy_prop, "mif")) { | |
7451 | /* 1G copper, MII */ | |
7452 | np->flags &= ~(NIU_FLAGS_FIBER | | |
7453 | NIU_FLAGS_10G); | |
7454 | np->mac_xcvr = MAC_XCVR_MII; | |
7455 | } else if (!strcmp(phy_prop, "xgf")) { | |
7456 | /* 10G fiber, XPCS */ | |
7457 | np->flags |= (NIU_FLAGS_10G | | |
7458 | NIU_FLAGS_FIBER); | |
7459 | np->mac_xcvr = MAC_XCVR_XPCS; | |
7460 | } else if (!strcmp(phy_prop, "pcs")) { | |
7461 | /* 1G fiber, PCS */ | |
7462 | np->flags &= ~NIU_FLAGS_10G; | |
7463 | np->flags |= NIU_FLAGS_FIBER; | |
7464 | np->mac_xcvr = MAC_XCVR_PCS; | |
7465 | } else if (!strcmp(phy_prop, "xgc")) { | |
7466 | /* 10G copper, XPCS */ | |
7467 | np->flags |= NIU_FLAGS_10G; | |
7468 | np->flags &= ~NIU_FLAGS_FIBER; | |
7469 | np->mac_xcvr = MAC_XCVR_XPCS; | |
e3e081e1 SB |
7470 | } else if (!strcmp(phy_prop, "xgsd") || !strcmp(phy_prop, "gsd")) { |
7471 | /* 10G Serdes or 1G Serdes, default to 10G */ | |
7472 | np->flags |= NIU_FLAGS_10G; | |
7473 | np->flags &= ~NIU_FLAGS_FIBER; | |
7474 | np->flags |= NIU_FLAGS_XCVR_SERDES; | |
7475 | np->mac_xcvr = MAC_XCVR_XPCS; | |
a3138df9 DM |
7476 | } else { |
7477 | return -EINVAL; | |
7478 | } | |
7479 | return 0; | |
7480 | } | |
7481 | ||
7f7c4072 MW |
7482 | static int niu_pci_vpd_get_nports(struct niu *np) |
7483 | { | |
7484 | int ports = 0; | |
7485 | ||
f9af8574 MW |
7486 | if ((!strcmp(np->vpd.model, NIU_QGC_LP_MDL_STR)) || |
7487 | (!strcmp(np->vpd.model, NIU_QGC_PEM_MDL_STR)) || | |
7488 | (!strcmp(np->vpd.model, NIU_MARAMBA_MDL_STR)) || | |
7489 | (!strcmp(np->vpd.model, NIU_KIMI_MDL_STR)) || | |
7490 | (!strcmp(np->vpd.model, NIU_ALONSO_MDL_STR))) { | |
7f7c4072 | 7491 | ports = 4; |
f9af8574 MW |
7492 | } else if ((!strcmp(np->vpd.model, NIU_2XGF_LP_MDL_STR)) || |
7493 | (!strcmp(np->vpd.model, NIU_2XGF_PEM_MDL_STR)) || | |
7494 | (!strcmp(np->vpd.model, NIU_FOXXY_MDL_STR)) || | |
7495 | (!strcmp(np->vpd.model, NIU_2XGF_MRVL_MDL_STR))) { | |
7f7c4072 MW |
7496 | ports = 2; |
7497 | } | |
7498 | ||
7499 | return ports; | |
7500 | } | |
7501 | ||
a3138df9 DM |
7502 | static void __devinit niu_pci_vpd_validate(struct niu *np) |
7503 | { | |
7504 | struct net_device *dev = np->dev; | |
7505 | struct niu_vpd *vpd = &np->vpd; | |
7506 | u8 val8; | |
7507 | ||
7508 | if (!is_valid_ether_addr(&vpd->local_mac[0])) { | |
7509 | dev_err(np->device, PFX "VPD MAC invalid, " | |
7510 | "falling back to SPROM.\n"); | |
7511 | ||
7512 | np->flags &= ~NIU_FLAGS_VPD_VALID; | |
7513 | return; | |
7514 | } | |
7515 | ||
f9af8574 MW |
7516 | if (!strcmp(np->vpd.model, NIU_ALONSO_MDL_STR) || |
7517 | !strcmp(np->vpd.model, NIU_KIMI_MDL_STR)) { | |
5fbd7e24 MW |
7518 | np->flags |= NIU_FLAGS_10G; |
7519 | np->flags &= ~NIU_FLAGS_FIBER; | |
7520 | np->flags |= NIU_FLAGS_XCVR_SERDES; | |
7521 | np->mac_xcvr = MAC_XCVR_PCS; | |
7522 | if (np->port > 1) { | |
7523 | np->flags |= NIU_FLAGS_FIBER; | |
7524 | np->flags &= ~NIU_FLAGS_10G; | |
7525 | } | |
7526 | if (np->flags & NIU_FLAGS_10G) | |
7527 | np->mac_xcvr = MAC_XCVR_XPCS; | |
f9af8574 | 7528 | } else if (!strcmp(np->vpd.model, NIU_FOXXY_MDL_STR)) { |
a5d6ab56 MW |
7529 | np->flags |= (NIU_FLAGS_10G | NIU_FLAGS_FIBER | |
7530 | NIU_FLAGS_HOTPLUG_PHY); | |
5fbd7e24 | 7531 | } else if (niu_phy_type_prop_decode(np, np->vpd.phy_type)) { |
a3138df9 DM |
7532 | dev_err(np->device, PFX "Illegal phy string [%s].\n", |
7533 | np->vpd.phy_type); | |
7534 | dev_err(np->device, PFX "Falling back to SPROM.\n"); | |
7535 | np->flags &= ~NIU_FLAGS_VPD_VALID; | |
7536 | return; | |
7537 | } | |
7538 | ||
7539 | memcpy(dev->perm_addr, vpd->local_mac, ETH_ALEN); | |
7540 | ||
7541 | val8 = dev->perm_addr[5]; | |
7542 | dev->perm_addr[5] += np->port; | |
7543 | if (dev->perm_addr[5] < val8) | |
7544 | dev->perm_addr[4]++; | |
7545 | ||
7546 | memcpy(dev->dev_addr, dev->perm_addr, dev->addr_len); | |
7547 | } | |
7548 | ||
7549 | static int __devinit niu_pci_probe_sprom(struct niu *np) | |
7550 | { | |
7551 | struct net_device *dev = np->dev; | |
7552 | int len, i; | |
7553 | u64 val, sum; | |
7554 | u8 val8; | |
7555 | ||
7556 | val = (nr64(ESPC_VER_IMGSZ) & ESPC_VER_IMGSZ_IMGSZ); | |
7557 | val >>= ESPC_VER_IMGSZ_IMGSZ_SHIFT; | |
7558 | len = val / 4; | |
7559 | ||
7560 | np->eeprom_len = len; | |
7561 | ||
7562 | niudbg(PROBE, "SPROM: Image size %llu\n", (unsigned long long) val); | |
7563 | ||
7564 | sum = 0; | |
7565 | for (i = 0; i < len; i++) { | |
7566 | val = nr64(ESPC_NCR(i)); | |
7567 | sum += (val >> 0) & 0xff; | |
7568 | sum += (val >> 8) & 0xff; | |
7569 | sum += (val >> 16) & 0xff; | |
7570 | sum += (val >> 24) & 0xff; | |
7571 | } | |
7572 | niudbg(PROBE, "SPROM: Checksum %x\n", (int)(sum & 0xff)); | |
7573 | if ((sum & 0xff) != 0xab) { | |
7574 | dev_err(np->device, PFX "Bad SPROM checksum " | |
7575 | "(%x, should be 0xab)\n", (int) (sum & 0xff)); | |
7576 | return -EINVAL; | |
7577 | } | |
7578 | ||
7579 | val = nr64(ESPC_PHY_TYPE); | |
7580 | switch (np->port) { | |
7581 | case 0: | |
a9d41192 | 7582 | val8 = (val & ESPC_PHY_TYPE_PORT0) >> |
a3138df9 DM |
7583 | ESPC_PHY_TYPE_PORT0_SHIFT; |
7584 | break; | |
7585 | case 1: | |
a9d41192 | 7586 | val8 = (val & ESPC_PHY_TYPE_PORT1) >> |
a3138df9 DM |
7587 | ESPC_PHY_TYPE_PORT1_SHIFT; |
7588 | break; | |
7589 | case 2: | |
a9d41192 | 7590 | val8 = (val & ESPC_PHY_TYPE_PORT2) >> |
a3138df9 DM |
7591 | ESPC_PHY_TYPE_PORT2_SHIFT; |
7592 | break; | |
7593 | case 3: | |
a9d41192 | 7594 | val8 = (val & ESPC_PHY_TYPE_PORT3) >> |
a3138df9 DM |
7595 | ESPC_PHY_TYPE_PORT3_SHIFT; |
7596 | break; | |
7597 | default: | |
7598 | dev_err(np->device, PFX "Bogus port number %u\n", | |
7599 | np->port); | |
7600 | return -EINVAL; | |
7601 | } | |
a9d41192 | 7602 | niudbg(PROBE, "SPROM: PHY type %x\n", val8); |
a3138df9 | 7603 | |
a9d41192 | 7604 | switch (val8) { |
a3138df9 DM |
7605 | case ESPC_PHY_TYPE_1G_COPPER: |
7606 | /* 1G copper, MII */ | |
7607 | np->flags &= ~(NIU_FLAGS_FIBER | | |
7608 | NIU_FLAGS_10G); | |
7609 | np->mac_xcvr = MAC_XCVR_MII; | |
7610 | break; | |
7611 | ||
7612 | case ESPC_PHY_TYPE_1G_FIBER: | |
7613 | /* 1G fiber, PCS */ | |
7614 | np->flags &= ~NIU_FLAGS_10G; | |
7615 | np->flags |= NIU_FLAGS_FIBER; | |
7616 | np->mac_xcvr = MAC_XCVR_PCS; | |
7617 | break; | |
7618 | ||
7619 | case ESPC_PHY_TYPE_10G_COPPER: | |
7620 | /* 10G copper, XPCS */ | |
7621 | np->flags |= NIU_FLAGS_10G; | |
7622 | np->flags &= ~NIU_FLAGS_FIBER; | |
7623 | np->mac_xcvr = MAC_XCVR_XPCS; | |
7624 | break; | |
7625 | ||
7626 | case ESPC_PHY_TYPE_10G_FIBER: | |
7627 | /* 10G fiber, XPCS */ | |
7628 | np->flags |= (NIU_FLAGS_10G | | |
7629 | NIU_FLAGS_FIBER); | |
7630 | np->mac_xcvr = MAC_XCVR_XPCS; | |
7631 | break; | |
7632 | ||
7633 | default: | |
a9d41192 | 7634 | dev_err(np->device, PFX "Bogus SPROM phy type %u\n", val8); |
a3138df9 DM |
7635 | return -EINVAL; |
7636 | } | |
7637 | ||
7638 | val = nr64(ESPC_MAC_ADDR0); | |
7639 | niudbg(PROBE, "SPROM: MAC_ADDR0[%08llx]\n", | |
7640 | (unsigned long long) val); | |
7641 | dev->perm_addr[0] = (val >> 0) & 0xff; | |
7642 | dev->perm_addr[1] = (val >> 8) & 0xff; | |
7643 | dev->perm_addr[2] = (val >> 16) & 0xff; | |
7644 | dev->perm_addr[3] = (val >> 24) & 0xff; | |
7645 | ||
7646 | val = nr64(ESPC_MAC_ADDR1); | |
7647 | niudbg(PROBE, "SPROM: MAC_ADDR1[%08llx]\n", | |
7648 | (unsigned long long) val); | |
7649 | dev->perm_addr[4] = (val >> 0) & 0xff; | |
7650 | dev->perm_addr[5] = (val >> 8) & 0xff; | |
7651 | ||
7652 | if (!is_valid_ether_addr(&dev->perm_addr[0])) { | |
7653 | dev_err(np->device, PFX "SPROM MAC address invalid\n"); | |
7654 | dev_err(np->device, PFX "[ \n"); | |
7655 | for (i = 0; i < 6; i++) | |
7656 | printk("%02x ", dev->perm_addr[i]); | |
7657 | printk("]\n"); | |
7658 | return -EINVAL; | |
7659 | } | |
7660 | ||
7661 | val8 = dev->perm_addr[5]; | |
7662 | dev->perm_addr[5] += np->port; | |
7663 | if (dev->perm_addr[5] < val8) | |
7664 | dev->perm_addr[4]++; | |
7665 | ||
7666 | memcpy(dev->dev_addr, dev->perm_addr, dev->addr_len); | |
7667 | ||
7668 | val = nr64(ESPC_MOD_STR_LEN); | |
7669 | niudbg(PROBE, "SPROM: MOD_STR_LEN[%llu]\n", | |
7670 | (unsigned long long) val); | |
e6a5fdf5 | 7671 | if (val >= 8 * 4) |
a3138df9 DM |
7672 | return -EINVAL; |
7673 | ||
7674 | for (i = 0; i < val; i += 4) { | |
7675 | u64 tmp = nr64(ESPC_NCR(5 + (i / 4))); | |
7676 | ||
7677 | np->vpd.model[i + 3] = (tmp >> 0) & 0xff; | |
7678 | np->vpd.model[i + 2] = (tmp >> 8) & 0xff; | |
7679 | np->vpd.model[i + 1] = (tmp >> 16) & 0xff; | |
7680 | np->vpd.model[i + 0] = (tmp >> 24) & 0xff; | |
7681 | } | |
7682 | np->vpd.model[val] = '\0'; | |
7683 | ||
7684 | val = nr64(ESPC_BD_MOD_STR_LEN); | |
7685 | niudbg(PROBE, "SPROM: BD_MOD_STR_LEN[%llu]\n", | |
7686 | (unsigned long long) val); | |
e6a5fdf5 | 7687 | if (val >= 4 * 4) |
a3138df9 DM |
7688 | return -EINVAL; |
7689 | ||
7690 | for (i = 0; i < val; i += 4) { | |
7691 | u64 tmp = nr64(ESPC_NCR(14 + (i / 4))); | |
7692 | ||
7693 | np->vpd.board_model[i + 3] = (tmp >> 0) & 0xff; | |
7694 | np->vpd.board_model[i + 2] = (tmp >> 8) & 0xff; | |
7695 | np->vpd.board_model[i + 1] = (tmp >> 16) & 0xff; | |
7696 | np->vpd.board_model[i + 0] = (tmp >> 24) & 0xff; | |
7697 | } | |
7698 | np->vpd.board_model[val] = '\0'; | |
7699 | ||
7700 | np->vpd.mac_num = | |
7701 | nr64(ESPC_NUM_PORTS_MACS) & ESPC_NUM_PORTS_MACS_VAL; | |
7702 | niudbg(PROBE, "SPROM: NUM_PORTS_MACS[%d]\n", | |
7703 | np->vpd.mac_num); | |
7704 | ||
7705 | return 0; | |
7706 | } | |
7707 | ||
7708 | static int __devinit niu_get_and_validate_port(struct niu *np) | |
7709 | { | |
7710 | struct niu_parent *parent = np->parent; | |
7711 | ||
7712 | if (np->port <= 1) | |
7713 | np->flags |= NIU_FLAGS_XMAC; | |
7714 | ||
7715 | if (!parent->num_ports) { | |
7716 | if (parent->plat_type == PLAT_TYPE_NIU) { | |
7717 | parent->num_ports = 2; | |
7718 | } else { | |
7f7c4072 MW |
7719 | parent->num_ports = niu_pci_vpd_get_nports(np); |
7720 | if (!parent->num_ports) { | |
7721 | /* Fall back to SPROM as last resort. | |
7722 | * This will fail on most cards. | |
7723 | */ | |
7724 | parent->num_ports = nr64(ESPC_NUM_PORTS_MACS) & | |
7725 | ESPC_NUM_PORTS_MACS_VAL; | |
7726 | ||
be0c007a DM |
7727 | /* All of the current probing methods fail on |
7728 | * Maramba on-board parts. | |
7729 | */ | |
7f7c4072 | 7730 | if (!parent->num_ports) |
be0c007a | 7731 | parent->num_ports = 4; |
7f7c4072 | 7732 | } |
a3138df9 DM |
7733 | } |
7734 | } | |
7735 | ||
7736 | niudbg(PROBE, "niu_get_and_validate_port: port[%d] num_ports[%d]\n", | |
7737 | np->port, parent->num_ports); | |
7738 | if (np->port >= parent->num_ports) | |
7739 | return -ENODEV; | |
7740 | ||
7741 | return 0; | |
7742 | } | |
7743 | ||
7744 | static int __devinit phy_record(struct niu_parent *parent, | |
7745 | struct phy_probe_info *p, | |
7746 | int dev_id_1, int dev_id_2, u8 phy_port, | |
7747 | int type) | |
7748 | { | |
7749 | u32 id = (dev_id_1 << 16) | dev_id_2; | |
7750 | u8 idx; | |
7751 | ||
7752 | if (dev_id_1 < 0 || dev_id_2 < 0) | |
7753 | return 0; | |
7754 | if (type == PHY_TYPE_PMA_PMD || type == PHY_TYPE_PCS) { | |
b0de8e40 | 7755 | if (((id & NIU_PHY_ID_MASK) != NIU_PHY_ID_BCM8704) && |
a5d6ab56 MW |
7756 | ((id & NIU_PHY_ID_MASK) != NIU_PHY_ID_MRVL88X2011) && |
7757 | ((id & NIU_PHY_ID_MASK) != NIU_PHY_ID_BCM8706)) | |
a3138df9 DM |
7758 | return 0; |
7759 | } else { | |
7760 | if ((id & NIU_PHY_ID_MASK) != NIU_PHY_ID_BCM5464R) | |
7761 | return 0; | |
7762 | } | |
7763 | ||
7764 | pr_info("niu%d: Found PHY %08x type %s at phy_port %u\n", | |
7765 | parent->index, id, | |
7766 | (type == PHY_TYPE_PMA_PMD ? | |
7767 | "PMA/PMD" : | |
7768 | (type == PHY_TYPE_PCS ? | |
7769 | "PCS" : "MII")), | |
7770 | phy_port); | |
7771 | ||
7772 | if (p->cur[type] >= NIU_MAX_PORTS) { | |
7773 | printk(KERN_ERR PFX "Too many PHY ports.\n"); | |
7774 | return -EINVAL; | |
7775 | } | |
7776 | idx = p->cur[type]; | |
7777 | p->phy_id[type][idx] = id; | |
7778 | p->phy_port[type][idx] = phy_port; | |
7779 | p->cur[type] = idx + 1; | |
7780 | return 0; | |
7781 | } | |
7782 | ||
7783 | static int __devinit port_has_10g(struct phy_probe_info *p, int port) | |
7784 | { | |
7785 | int i; | |
7786 | ||
7787 | for (i = 0; i < p->cur[PHY_TYPE_PMA_PMD]; i++) { | |
7788 | if (p->phy_port[PHY_TYPE_PMA_PMD][i] == port) | |
7789 | return 1; | |
7790 | } | |
7791 | for (i = 0; i < p->cur[PHY_TYPE_PCS]; i++) { | |
7792 | if (p->phy_port[PHY_TYPE_PCS][i] == port) | |
7793 | return 1; | |
7794 | } | |
7795 | ||
7796 | return 0; | |
7797 | } | |
7798 | ||
7799 | static int __devinit count_10g_ports(struct phy_probe_info *p, int *lowest) | |
7800 | { | |
7801 | int port, cnt; | |
7802 | ||
7803 | cnt = 0; | |
7804 | *lowest = 32; | |
7805 | for (port = 8; port < 32; port++) { | |
7806 | if (port_has_10g(p, port)) { | |
7807 | if (!cnt) | |
7808 | *lowest = port; | |
7809 | cnt++; | |
7810 | } | |
7811 | } | |
7812 | ||
7813 | return cnt; | |
7814 | } | |
7815 | ||
7816 | static int __devinit count_1g_ports(struct phy_probe_info *p, int *lowest) | |
7817 | { | |
7818 | *lowest = 32; | |
7819 | if (p->cur[PHY_TYPE_MII]) | |
7820 | *lowest = p->phy_port[PHY_TYPE_MII][0]; | |
7821 | ||
7822 | return p->cur[PHY_TYPE_MII]; | |
7823 | } | |
7824 | ||
7825 | static void __devinit niu_n2_divide_channels(struct niu_parent *parent) | |
7826 | { | |
7827 | int num_ports = parent->num_ports; | |
7828 | int i; | |
7829 | ||
7830 | for (i = 0; i < num_ports; i++) { | |
7831 | parent->rxchan_per_port[i] = (16 / num_ports); | |
7832 | parent->txchan_per_port[i] = (16 / num_ports); | |
7833 | ||
7834 | pr_info(PFX "niu%d: Port %u [%u RX chans] " | |
7835 | "[%u TX chans]\n", | |
7836 | parent->index, i, | |
7837 | parent->rxchan_per_port[i], | |
7838 | parent->txchan_per_port[i]); | |
7839 | } | |
7840 | } | |
7841 | ||
7842 | static void __devinit niu_divide_channels(struct niu_parent *parent, | |
7843 | int num_10g, int num_1g) | |
7844 | { | |
7845 | int num_ports = parent->num_ports; | |
7846 | int rx_chans_per_10g, rx_chans_per_1g; | |
7847 | int tx_chans_per_10g, tx_chans_per_1g; | |
7848 | int i, tot_rx, tot_tx; | |
7849 | ||
7850 | if (!num_10g || !num_1g) { | |
7851 | rx_chans_per_10g = rx_chans_per_1g = | |
7852 | (NIU_NUM_RXCHAN / num_ports); | |
7853 | tx_chans_per_10g = tx_chans_per_1g = | |
7854 | (NIU_NUM_TXCHAN / num_ports); | |
7855 | } else { | |
7856 | rx_chans_per_1g = NIU_NUM_RXCHAN / 8; | |
7857 | rx_chans_per_10g = (NIU_NUM_RXCHAN - | |
7858 | (rx_chans_per_1g * num_1g)) / | |
7859 | num_10g; | |
7860 | ||
7861 | tx_chans_per_1g = NIU_NUM_TXCHAN / 6; | |
7862 | tx_chans_per_10g = (NIU_NUM_TXCHAN - | |
7863 | (tx_chans_per_1g * num_1g)) / | |
7864 | num_10g; | |
7865 | } | |
7866 | ||
7867 | tot_rx = tot_tx = 0; | |
7868 | for (i = 0; i < num_ports; i++) { | |
7869 | int type = phy_decode(parent->port_phy, i); | |
7870 | ||
7871 | if (type == PORT_TYPE_10G) { | |
7872 | parent->rxchan_per_port[i] = rx_chans_per_10g; | |
7873 | parent->txchan_per_port[i] = tx_chans_per_10g; | |
7874 | } else { | |
7875 | parent->rxchan_per_port[i] = rx_chans_per_1g; | |
7876 | parent->txchan_per_port[i] = tx_chans_per_1g; | |
7877 | } | |
7878 | pr_info(PFX "niu%d: Port %u [%u RX chans] " | |
7879 | "[%u TX chans]\n", | |
7880 | parent->index, i, | |
7881 | parent->rxchan_per_port[i], | |
7882 | parent->txchan_per_port[i]); | |
7883 | tot_rx += parent->rxchan_per_port[i]; | |
7884 | tot_tx += parent->txchan_per_port[i]; | |
7885 | } | |
7886 | ||
7887 | if (tot_rx > NIU_NUM_RXCHAN) { | |
7888 | printk(KERN_ERR PFX "niu%d: Too many RX channels (%d), " | |
7889 | "resetting to one per port.\n", | |
7890 | parent->index, tot_rx); | |
7891 | for (i = 0; i < num_ports; i++) | |
7892 | parent->rxchan_per_port[i] = 1; | |
7893 | } | |
7894 | if (tot_tx > NIU_NUM_TXCHAN) { | |
7895 | printk(KERN_ERR PFX "niu%d: Too many TX channels (%d), " | |
7896 | "resetting to one per port.\n", | |
7897 | parent->index, tot_tx); | |
7898 | for (i = 0; i < num_ports; i++) | |
7899 | parent->txchan_per_port[i] = 1; | |
7900 | } | |
7901 | if (tot_rx < NIU_NUM_RXCHAN || tot_tx < NIU_NUM_TXCHAN) { | |
7902 | printk(KERN_WARNING PFX "niu%d: Driver bug, wasted channels, " | |
7903 | "RX[%d] TX[%d]\n", | |
7904 | parent->index, tot_rx, tot_tx); | |
7905 | } | |
7906 | } | |
7907 | ||
7908 | static void __devinit niu_divide_rdc_groups(struct niu_parent *parent, | |
7909 | int num_10g, int num_1g) | |
7910 | { | |
7911 | int i, num_ports = parent->num_ports; | |
7912 | int rdc_group, rdc_groups_per_port; | |
7913 | int rdc_channel_base; | |
7914 | ||
7915 | rdc_group = 0; | |
7916 | rdc_groups_per_port = NIU_NUM_RDC_TABLES / num_ports; | |
7917 | ||
7918 | rdc_channel_base = 0; | |
7919 | ||
7920 | for (i = 0; i < num_ports; i++) { | |
7921 | struct niu_rdc_tables *tp = &parent->rdc_group_cfg[i]; | |
7922 | int grp, num_channels = parent->rxchan_per_port[i]; | |
7923 | int this_channel_offset; | |
7924 | ||
7925 | tp->first_table_num = rdc_group; | |
7926 | tp->num_tables = rdc_groups_per_port; | |
7927 | this_channel_offset = 0; | |
7928 | for (grp = 0; grp < tp->num_tables; grp++) { | |
7929 | struct rdc_table *rt = &tp->tables[grp]; | |
7930 | int slot; | |
7931 | ||
7932 | pr_info(PFX "niu%d: Port %d RDC tbl(%d) [ ", | |
7933 | parent->index, i, tp->first_table_num + grp); | |
7934 | for (slot = 0; slot < NIU_RDC_TABLE_SLOTS; slot++) { | |
7935 | rt->rxdma_channel[slot] = | |
7936 | rdc_channel_base + this_channel_offset; | |
7937 | ||
7938 | printk("%d ", rt->rxdma_channel[slot]); | |
7939 | ||
7940 | if (++this_channel_offset == num_channels) | |
7941 | this_channel_offset = 0; | |
7942 | } | |
7943 | printk("]\n"); | |
7944 | } | |
7945 | ||
7946 | parent->rdc_default[i] = rdc_channel_base; | |
7947 | ||
7948 | rdc_channel_base += num_channels; | |
7949 | rdc_group += rdc_groups_per_port; | |
7950 | } | |
7951 | } | |
7952 | ||
7953 | static int __devinit fill_phy_probe_info(struct niu *np, | |
7954 | struct niu_parent *parent, | |
7955 | struct phy_probe_info *info) | |
7956 | { | |
7957 | unsigned long flags; | |
7958 | int port, err; | |
7959 | ||
7960 | memset(info, 0, sizeof(*info)); | |
7961 | ||
7962 | /* Port 0 to 7 are reserved for onboard Serdes, probe the rest. */ | |
7963 | niu_lock_parent(np, flags); | |
7964 | err = 0; | |
7965 | for (port = 8; port < 32; port++) { | |
7966 | int dev_id_1, dev_id_2; | |
7967 | ||
7968 | dev_id_1 = mdio_read(np, port, | |
7969 | NIU_PMA_PMD_DEV_ADDR, MII_PHYSID1); | |
7970 | dev_id_2 = mdio_read(np, port, | |
7971 | NIU_PMA_PMD_DEV_ADDR, MII_PHYSID2); | |
7972 | err = phy_record(parent, info, dev_id_1, dev_id_2, port, | |
7973 | PHY_TYPE_PMA_PMD); | |
7974 | if (err) | |
7975 | break; | |
7976 | dev_id_1 = mdio_read(np, port, | |
7977 | NIU_PCS_DEV_ADDR, MII_PHYSID1); | |
7978 | dev_id_2 = mdio_read(np, port, | |
7979 | NIU_PCS_DEV_ADDR, MII_PHYSID2); | |
7980 | err = phy_record(parent, info, dev_id_1, dev_id_2, port, | |
7981 | PHY_TYPE_PCS); | |
7982 | if (err) | |
7983 | break; | |
7984 | dev_id_1 = mii_read(np, port, MII_PHYSID1); | |
7985 | dev_id_2 = mii_read(np, port, MII_PHYSID2); | |
7986 | err = phy_record(parent, info, dev_id_1, dev_id_2, port, | |
7987 | PHY_TYPE_MII); | |
7988 | if (err) | |
7989 | break; | |
7990 | } | |
7991 | niu_unlock_parent(np, flags); | |
7992 | ||
7993 | return err; | |
7994 | } | |
7995 | ||
7996 | static int __devinit walk_phys(struct niu *np, struct niu_parent *parent) | |
7997 | { | |
7998 | struct phy_probe_info *info = &parent->phy_probe_info; | |
7999 | int lowest_10g, lowest_1g; | |
8000 | int num_10g, num_1g; | |
8001 | u32 val; | |
8002 | int err; | |
8003 | ||
e3e081e1 SB |
8004 | num_10g = num_1g = 0; |
8005 | ||
f9af8574 MW |
8006 | if (!strcmp(np->vpd.model, NIU_ALONSO_MDL_STR) || |
8007 | !strcmp(np->vpd.model, NIU_KIMI_MDL_STR)) { | |
5fbd7e24 MW |
8008 | num_10g = 0; |
8009 | num_1g = 2; | |
8010 | parent->plat_type = PLAT_TYPE_ATCA_CP3220; | |
8011 | parent->num_ports = 4; | |
8012 | val = (phy_encode(PORT_TYPE_1G, 0) | | |
8013 | phy_encode(PORT_TYPE_1G, 1) | | |
a3138df9 DM |
8014 | phy_encode(PORT_TYPE_1G, 2) | |
8015 | phy_encode(PORT_TYPE_1G, 3)); | |
f9af8574 | 8016 | } else if (!strcmp(np->vpd.model, NIU_FOXXY_MDL_STR)) { |
a5d6ab56 MW |
8017 | num_10g = 2; |
8018 | num_1g = 0; | |
8019 | parent->num_ports = 2; | |
8020 | val = (phy_encode(PORT_TYPE_10G, 0) | | |
8021 | phy_encode(PORT_TYPE_10G, 1)); | |
e3e081e1 SB |
8022 | } else if ((np->flags & NIU_FLAGS_XCVR_SERDES) && |
8023 | (parent->plat_type == PLAT_TYPE_NIU)) { | |
8024 | /* this is the Monza case */ | |
8025 | if (np->flags & NIU_FLAGS_10G) { | |
8026 | val = (phy_encode(PORT_TYPE_10G, 0) | | |
8027 | phy_encode(PORT_TYPE_10G, 1)); | |
8028 | } else { | |
8029 | val = (phy_encode(PORT_TYPE_1G, 0) | | |
8030 | phy_encode(PORT_TYPE_1G, 1)); | |
8031 | } | |
5fbd7e24 MW |
8032 | } else { |
8033 | err = fill_phy_probe_info(np, parent, info); | |
8034 | if (err) | |
8035 | return err; | |
a3138df9 | 8036 | |
5fbd7e24 MW |
8037 | num_10g = count_10g_ports(info, &lowest_10g); |
8038 | num_1g = count_1g_ports(info, &lowest_1g); | |
a3138df9 | 8039 | |
5fbd7e24 MW |
8040 | switch ((num_10g << 4) | num_1g) { |
8041 | case 0x24: | |
8042 | if (lowest_1g == 10) | |
8043 | parent->plat_type = PLAT_TYPE_VF_P0; | |
8044 | else if (lowest_1g == 26) | |
8045 | parent->plat_type = PLAT_TYPE_VF_P1; | |
8046 | else | |
8047 | goto unknown_vg_1g_port; | |
a3138df9 | 8048 | |
5fbd7e24 MW |
8049 | /* fallthru */ |
8050 | case 0x22: | |
a3138df9 | 8051 | val = (phy_encode(PORT_TYPE_10G, 0) | |
a3138df9 DM |
8052 | phy_encode(PORT_TYPE_10G, 1) | |
8053 | phy_encode(PORT_TYPE_1G, 2) | | |
8054 | phy_encode(PORT_TYPE_1G, 3)); | |
5fbd7e24 | 8055 | break; |
a3138df9 | 8056 | |
5fbd7e24 MW |
8057 | case 0x20: |
8058 | val = (phy_encode(PORT_TYPE_10G, 0) | | |
8059 | phy_encode(PORT_TYPE_10G, 1)); | |
8060 | break; | |
a3138df9 | 8061 | |
5fbd7e24 MW |
8062 | case 0x10: |
8063 | val = phy_encode(PORT_TYPE_10G, np->port); | |
8064 | break; | |
a3138df9 | 8065 | |
5fbd7e24 MW |
8066 | case 0x14: |
8067 | if (lowest_1g == 10) | |
8068 | parent->plat_type = PLAT_TYPE_VF_P0; | |
8069 | else if (lowest_1g == 26) | |
8070 | parent->plat_type = PLAT_TYPE_VF_P1; | |
8071 | else | |
8072 | goto unknown_vg_1g_port; | |
8073 | ||
8074 | /* fallthru */ | |
8075 | case 0x13: | |
8076 | if ((lowest_10g & 0x7) == 0) | |
8077 | val = (phy_encode(PORT_TYPE_10G, 0) | | |
8078 | phy_encode(PORT_TYPE_1G, 1) | | |
8079 | phy_encode(PORT_TYPE_1G, 2) | | |
8080 | phy_encode(PORT_TYPE_1G, 3)); | |
8081 | else | |
8082 | val = (phy_encode(PORT_TYPE_1G, 0) | | |
8083 | phy_encode(PORT_TYPE_10G, 1) | | |
8084 | phy_encode(PORT_TYPE_1G, 2) | | |
8085 | phy_encode(PORT_TYPE_1G, 3)); | |
8086 | break; | |
8087 | ||
8088 | case 0x04: | |
8089 | if (lowest_1g == 10) | |
8090 | parent->plat_type = PLAT_TYPE_VF_P0; | |
8091 | else if (lowest_1g == 26) | |
8092 | parent->plat_type = PLAT_TYPE_VF_P1; | |
8093 | else | |
8094 | goto unknown_vg_1g_port; | |
8095 | ||
8096 | val = (phy_encode(PORT_TYPE_1G, 0) | | |
8097 | phy_encode(PORT_TYPE_1G, 1) | | |
8098 | phy_encode(PORT_TYPE_1G, 2) | | |
8099 | phy_encode(PORT_TYPE_1G, 3)); | |
8100 | break; | |
8101 | ||
8102 | default: | |
8103 | printk(KERN_ERR PFX "Unsupported port config " | |
8104 | "10G[%d] 1G[%d]\n", | |
8105 | num_10g, num_1g); | |
8106 | return -EINVAL; | |
8107 | } | |
a3138df9 DM |
8108 | } |
8109 | ||
8110 | parent->port_phy = val; | |
8111 | ||
8112 | if (parent->plat_type == PLAT_TYPE_NIU) | |
8113 | niu_n2_divide_channels(parent); | |
8114 | else | |
8115 | niu_divide_channels(parent, num_10g, num_1g); | |
8116 | ||
8117 | niu_divide_rdc_groups(parent, num_10g, num_1g); | |
8118 | ||
8119 | return 0; | |
8120 | ||
8121 | unknown_vg_1g_port: | |
8122 | printk(KERN_ERR PFX "Cannot identify platform type, 1gport=%d\n", | |
8123 | lowest_1g); | |
8124 | return -EINVAL; | |
8125 | } | |
8126 | ||
8127 | static int __devinit niu_probe_ports(struct niu *np) | |
8128 | { | |
8129 | struct niu_parent *parent = np->parent; | |
8130 | int err, i; | |
8131 | ||
8132 | niudbg(PROBE, "niu_probe_ports(): port_phy[%08x]\n", | |
8133 | parent->port_phy); | |
8134 | ||
8135 | if (parent->port_phy == PORT_PHY_UNKNOWN) { | |
8136 | err = walk_phys(np, parent); | |
8137 | if (err) | |
8138 | return err; | |
8139 | ||
8140 | niu_set_ldg_timer_res(np, 2); | |
8141 | for (i = 0; i <= LDN_MAX; i++) | |
8142 | niu_ldn_irq_enable(np, i, 0); | |
8143 | } | |
8144 | ||
8145 | if (parent->port_phy == PORT_PHY_INVALID) | |
8146 | return -EINVAL; | |
8147 | ||
8148 | return 0; | |
8149 | } | |
8150 | ||
8151 | static int __devinit niu_classifier_swstate_init(struct niu *np) | |
8152 | { | |
8153 | struct niu_classifier *cp = &np->clas; | |
8154 | ||
8155 | niudbg(PROBE, "niu_classifier_swstate_init: num_tcam(%d)\n", | |
8156 | np->parent->tcam_num_entries); | |
8157 | ||
8158 | cp->tcam_index = (u16) np->port; | |
8159 | cp->h1_init = 0xffffffff; | |
8160 | cp->h2_init = 0xffff; | |
8161 | ||
8162 | return fflp_early_init(np); | |
8163 | } | |
8164 | ||
8165 | static void __devinit niu_link_config_init(struct niu *np) | |
8166 | { | |
8167 | struct niu_link_config *lp = &np->link_config; | |
8168 | ||
8169 | lp->advertising = (ADVERTISED_10baseT_Half | | |
8170 | ADVERTISED_10baseT_Full | | |
8171 | ADVERTISED_100baseT_Half | | |
8172 | ADVERTISED_100baseT_Full | | |
8173 | ADVERTISED_1000baseT_Half | | |
8174 | ADVERTISED_1000baseT_Full | | |
8175 | ADVERTISED_10000baseT_Full | | |
8176 | ADVERTISED_Autoneg); | |
8177 | lp->speed = lp->active_speed = SPEED_INVALID; | |
8178 | lp->duplex = lp->active_duplex = DUPLEX_INVALID; | |
8179 | #if 0 | |
8180 | lp->loopback_mode = LOOPBACK_MAC; | |
8181 | lp->active_speed = SPEED_10000; | |
8182 | lp->active_duplex = DUPLEX_FULL; | |
8183 | #else | |
8184 | lp->loopback_mode = LOOPBACK_DISABLED; | |
8185 | #endif | |
8186 | } | |
8187 | ||
8188 | static int __devinit niu_init_mac_ipp_pcs_base(struct niu *np) | |
8189 | { | |
8190 | switch (np->port) { | |
8191 | case 0: | |
8192 | np->mac_regs = np->regs + XMAC_PORT0_OFF; | |
8193 | np->ipp_off = 0x00000; | |
8194 | np->pcs_off = 0x04000; | |
8195 | np->xpcs_off = 0x02000; | |
8196 | break; | |
8197 | ||
8198 | case 1: | |
8199 | np->mac_regs = np->regs + XMAC_PORT1_OFF; | |
8200 | np->ipp_off = 0x08000; | |
8201 | np->pcs_off = 0x0a000; | |
8202 | np->xpcs_off = 0x08000; | |
8203 | break; | |
8204 | ||
8205 | case 2: | |
8206 | np->mac_regs = np->regs + BMAC_PORT2_OFF; | |
8207 | np->ipp_off = 0x04000; | |
8208 | np->pcs_off = 0x0e000; | |
8209 | np->xpcs_off = ~0UL; | |
8210 | break; | |
8211 | ||
8212 | case 3: | |
8213 | np->mac_regs = np->regs + BMAC_PORT3_OFF; | |
8214 | np->ipp_off = 0x0c000; | |
8215 | np->pcs_off = 0x12000; | |
8216 | np->xpcs_off = ~0UL; | |
8217 | break; | |
8218 | ||
8219 | default: | |
8220 | dev_err(np->device, PFX "Port %u is invalid, cannot " | |
8221 | "compute MAC block offset.\n", np->port); | |
8222 | return -EINVAL; | |
8223 | } | |
8224 | ||
8225 | return 0; | |
8226 | } | |
8227 | ||
8228 | static void __devinit niu_try_msix(struct niu *np, u8 *ldg_num_map) | |
8229 | { | |
8230 | struct msix_entry msi_vec[NIU_NUM_LDG]; | |
8231 | struct niu_parent *parent = np->parent; | |
8232 | struct pci_dev *pdev = np->pdev; | |
8233 | int i, num_irqs, err; | |
8234 | u8 first_ldg; | |
8235 | ||
8236 | first_ldg = (NIU_NUM_LDG / parent->num_ports) * np->port; | |
8237 | for (i = 0; i < (NIU_NUM_LDG / parent->num_ports); i++) | |
8238 | ldg_num_map[i] = first_ldg + i; | |
8239 | ||
8240 | num_irqs = (parent->rxchan_per_port[np->port] + | |
8241 | parent->txchan_per_port[np->port] + | |
8242 | (np->port == 0 ? 3 : 1)); | |
8243 | BUG_ON(num_irqs > (NIU_NUM_LDG / parent->num_ports)); | |
8244 | ||
8245 | retry: | |
8246 | for (i = 0; i < num_irqs; i++) { | |
8247 | msi_vec[i].vector = 0; | |
8248 | msi_vec[i].entry = i; | |
8249 | } | |
8250 | ||
8251 | err = pci_enable_msix(pdev, msi_vec, num_irqs); | |
8252 | if (err < 0) { | |
8253 | np->flags &= ~NIU_FLAGS_MSIX; | |
8254 | return; | |
8255 | } | |
8256 | if (err > 0) { | |
8257 | num_irqs = err; | |
8258 | goto retry; | |
8259 | } | |
8260 | ||
8261 | np->flags |= NIU_FLAGS_MSIX; | |
8262 | for (i = 0; i < num_irqs; i++) | |
8263 | np->ldg[i].irq = msi_vec[i].vector; | |
8264 | np->num_ldg = num_irqs; | |
8265 | } | |
8266 | ||
8267 | static int __devinit niu_n2_irq_init(struct niu *np, u8 *ldg_num_map) | |
8268 | { | |
8269 | #ifdef CONFIG_SPARC64 | |
8270 | struct of_device *op = np->op; | |
8271 | const u32 *int_prop; | |
8272 | int i; | |
8273 | ||
8274 | int_prop = of_get_property(op->node, "interrupts", NULL); | |
8275 | if (!int_prop) | |
8276 | return -ENODEV; | |
8277 | ||
8278 | for (i = 0; i < op->num_irqs; i++) { | |
8279 | ldg_num_map[i] = int_prop[i]; | |
8280 | np->ldg[i].irq = op->irqs[i]; | |
8281 | } | |
8282 | ||
8283 | np->num_ldg = op->num_irqs; | |
8284 | ||
8285 | return 0; | |
8286 | #else | |
8287 | return -EINVAL; | |
8288 | #endif | |
8289 | } | |
8290 | ||
8291 | static int __devinit niu_ldg_init(struct niu *np) | |
8292 | { | |
8293 | struct niu_parent *parent = np->parent; | |
8294 | u8 ldg_num_map[NIU_NUM_LDG]; | |
8295 | int first_chan, num_chan; | |
8296 | int i, err, ldg_rotor; | |
8297 | u8 port; | |
8298 | ||
8299 | np->num_ldg = 1; | |
8300 | np->ldg[0].irq = np->dev->irq; | |
8301 | if (parent->plat_type == PLAT_TYPE_NIU) { | |
8302 | err = niu_n2_irq_init(np, ldg_num_map); | |
8303 | if (err) | |
8304 | return err; | |
8305 | } else | |
8306 | niu_try_msix(np, ldg_num_map); | |
8307 | ||
8308 | port = np->port; | |
8309 | for (i = 0; i < np->num_ldg; i++) { | |
8310 | struct niu_ldg *lp = &np->ldg[i]; | |
8311 | ||
8312 | netif_napi_add(np->dev, &lp->napi, niu_poll, 64); | |
8313 | ||
8314 | lp->np = np; | |
8315 | lp->ldg_num = ldg_num_map[i]; | |
8316 | lp->timer = 2; /* XXX */ | |
8317 | ||
8318 | /* On N2 NIU the firmware has setup the SID mappings so they go | |
8319 | * to the correct values that will route the LDG to the proper | |
8320 | * interrupt in the NCU interrupt table. | |
8321 | */ | |
8322 | if (np->parent->plat_type != PLAT_TYPE_NIU) { | |
8323 | err = niu_set_ldg_sid(np, lp->ldg_num, port, i); | |
8324 | if (err) | |
8325 | return err; | |
8326 | } | |
8327 | } | |
8328 | ||
8329 | /* We adopt the LDG assignment ordering used by the N2 NIU | |
8330 | * 'interrupt' properties because that simplifies a lot of | |
8331 | * things. This ordering is: | |
8332 | * | |
8333 | * MAC | |
8334 | * MIF (if port zero) | |
8335 | * SYSERR (if port zero) | |
8336 | * RX channels | |
8337 | * TX channels | |
8338 | */ | |
8339 | ||
8340 | ldg_rotor = 0; | |
8341 | ||
8342 | err = niu_ldg_assign_ldn(np, parent, ldg_num_map[ldg_rotor], | |
8343 | LDN_MAC(port)); | |
8344 | if (err) | |
8345 | return err; | |
8346 | ||
8347 | ldg_rotor++; | |
8348 | if (ldg_rotor == np->num_ldg) | |
8349 | ldg_rotor = 0; | |
8350 | ||
8351 | if (port == 0) { | |
8352 | err = niu_ldg_assign_ldn(np, parent, | |
8353 | ldg_num_map[ldg_rotor], | |
8354 | LDN_MIF); | |
8355 | if (err) | |
8356 | return err; | |
8357 | ||
8358 | ldg_rotor++; | |
8359 | if (ldg_rotor == np->num_ldg) | |
8360 | ldg_rotor = 0; | |
8361 | ||
8362 | err = niu_ldg_assign_ldn(np, parent, | |
8363 | ldg_num_map[ldg_rotor], | |
8364 | LDN_DEVICE_ERROR); | |
8365 | if (err) | |
8366 | return err; | |
8367 | ||
8368 | ldg_rotor++; | |
8369 | if (ldg_rotor == np->num_ldg) | |
8370 | ldg_rotor = 0; | |
8371 | ||
8372 | } | |
8373 | ||
8374 | first_chan = 0; | |
8375 | for (i = 0; i < port; i++) | |
8376 | first_chan += parent->rxchan_per_port[port]; | |
8377 | num_chan = parent->rxchan_per_port[port]; | |
8378 | ||
8379 | for (i = first_chan; i < (first_chan + num_chan); i++) { | |
8380 | err = niu_ldg_assign_ldn(np, parent, | |
8381 | ldg_num_map[ldg_rotor], | |
8382 | LDN_RXDMA(i)); | |
8383 | if (err) | |
8384 | return err; | |
8385 | ldg_rotor++; | |
8386 | if (ldg_rotor == np->num_ldg) | |
8387 | ldg_rotor = 0; | |
8388 | } | |
8389 | ||
8390 | first_chan = 0; | |
8391 | for (i = 0; i < port; i++) | |
8392 | first_chan += parent->txchan_per_port[port]; | |
8393 | num_chan = parent->txchan_per_port[port]; | |
8394 | for (i = first_chan; i < (first_chan + num_chan); i++) { | |
8395 | err = niu_ldg_assign_ldn(np, parent, | |
8396 | ldg_num_map[ldg_rotor], | |
8397 | LDN_TXDMA(i)); | |
8398 | if (err) | |
8399 | return err; | |
8400 | ldg_rotor++; | |
8401 | if (ldg_rotor == np->num_ldg) | |
8402 | ldg_rotor = 0; | |
8403 | } | |
8404 | ||
8405 | return 0; | |
8406 | } | |
8407 | ||
8408 | static void __devexit niu_ldg_free(struct niu *np) | |
8409 | { | |
8410 | if (np->flags & NIU_FLAGS_MSIX) | |
8411 | pci_disable_msix(np->pdev); | |
8412 | } | |
8413 | ||
8414 | static int __devinit niu_get_of_props(struct niu *np) | |
8415 | { | |
8416 | #ifdef CONFIG_SPARC64 | |
8417 | struct net_device *dev = np->dev; | |
8418 | struct device_node *dp; | |
8419 | const char *phy_type; | |
8420 | const u8 *mac_addr; | |
f9af8574 | 8421 | const char *model; |
a3138df9 DM |
8422 | int prop_len; |
8423 | ||
8424 | if (np->parent->plat_type == PLAT_TYPE_NIU) | |
8425 | dp = np->op->node; | |
8426 | else | |
8427 | dp = pci_device_to_OF_node(np->pdev); | |
8428 | ||
8429 | phy_type = of_get_property(dp, "phy-type", &prop_len); | |
8430 | if (!phy_type) { | |
8431 | dev_err(np->device, PFX "%s: OF node lacks " | |
8432 | "phy-type property\n", | |
8433 | dp->full_name); | |
8434 | return -EINVAL; | |
8435 | } | |
8436 | ||
8437 | if (!strcmp(phy_type, "none")) | |
8438 | return -ENODEV; | |
8439 | ||
8440 | strcpy(np->vpd.phy_type, phy_type); | |
8441 | ||
8442 | if (niu_phy_type_prop_decode(np, np->vpd.phy_type)) { | |
8443 | dev_err(np->device, PFX "%s: Illegal phy string [%s].\n", | |
8444 | dp->full_name, np->vpd.phy_type); | |
8445 | return -EINVAL; | |
8446 | } | |
8447 | ||
8448 | mac_addr = of_get_property(dp, "local-mac-address", &prop_len); | |
8449 | if (!mac_addr) { | |
8450 | dev_err(np->device, PFX "%s: OF node lacks " | |
8451 | "local-mac-address property\n", | |
8452 | dp->full_name); | |
8453 | return -EINVAL; | |
8454 | } | |
8455 | if (prop_len != dev->addr_len) { | |
8456 | dev_err(np->device, PFX "%s: OF MAC address prop len (%d) " | |
8457 | "is wrong.\n", | |
8458 | dp->full_name, prop_len); | |
8459 | } | |
8460 | memcpy(dev->perm_addr, mac_addr, dev->addr_len); | |
8461 | if (!is_valid_ether_addr(&dev->perm_addr[0])) { | |
8462 | int i; | |
8463 | ||
8464 | dev_err(np->device, PFX "%s: OF MAC address is invalid\n", | |
8465 | dp->full_name); | |
8466 | dev_err(np->device, PFX "%s: [ \n", | |
8467 | dp->full_name); | |
8468 | for (i = 0; i < 6; i++) | |
8469 | printk("%02x ", dev->perm_addr[i]); | |
8470 | printk("]\n"); | |
8471 | return -EINVAL; | |
8472 | } | |
8473 | ||
8474 | memcpy(dev->dev_addr, dev->perm_addr, dev->addr_len); | |
f9af8574 MW |
8475 | |
8476 | model = of_get_property(dp, "model", &prop_len); | |
8477 | ||
8478 | if (model) | |
8479 | strcpy(np->vpd.model, model); | |
a3138df9 DM |
8480 | |
8481 | return 0; | |
8482 | #else | |
8483 | return -EINVAL; | |
8484 | #endif | |
8485 | } | |
8486 | ||
8487 | static int __devinit niu_get_invariants(struct niu *np) | |
8488 | { | |
8489 | int err, have_props; | |
8490 | u32 offset; | |
8491 | ||
8492 | err = niu_get_of_props(np); | |
8493 | if (err == -ENODEV) | |
8494 | return err; | |
8495 | ||
8496 | have_props = !err; | |
8497 | ||
a3138df9 DM |
8498 | err = niu_init_mac_ipp_pcs_base(np); |
8499 | if (err) | |
8500 | return err; | |
8501 | ||
7f7c4072 MW |
8502 | if (have_props) { |
8503 | err = niu_get_and_validate_port(np); | |
8504 | if (err) | |
8505 | return err; | |
8506 | ||
8507 | } else { | |
a3138df9 DM |
8508 | if (np->parent->plat_type == PLAT_TYPE_NIU) |
8509 | return -EINVAL; | |
8510 | ||
8511 | nw64(ESPC_PIO_EN, ESPC_PIO_EN_ENABLE); | |
8512 | offset = niu_pci_vpd_offset(np); | |
8513 | niudbg(PROBE, "niu_get_invariants: VPD offset [%08x]\n", | |
8514 | offset); | |
8515 | if (offset) | |
8516 | niu_pci_vpd_fetch(np, offset); | |
8517 | nw64(ESPC_PIO_EN, 0); | |
8518 | ||
7f7c4072 | 8519 | if (np->flags & NIU_FLAGS_VPD_VALID) { |
a3138df9 | 8520 | niu_pci_vpd_validate(np); |
7f7c4072 MW |
8521 | err = niu_get_and_validate_port(np); |
8522 | if (err) | |
8523 | return err; | |
8524 | } | |
a3138df9 DM |
8525 | |
8526 | if (!(np->flags & NIU_FLAGS_VPD_VALID)) { | |
7f7c4072 MW |
8527 | err = niu_get_and_validate_port(np); |
8528 | if (err) | |
8529 | return err; | |
a3138df9 DM |
8530 | err = niu_pci_probe_sprom(np); |
8531 | if (err) | |
8532 | return err; | |
8533 | } | |
8534 | } | |
8535 | ||
8536 | err = niu_probe_ports(np); | |
8537 | if (err) | |
8538 | return err; | |
8539 | ||
8540 | niu_ldg_init(np); | |
8541 | ||
8542 | niu_classifier_swstate_init(np); | |
8543 | niu_link_config_init(np); | |
8544 | ||
8545 | err = niu_determine_phy_disposition(np); | |
8546 | if (!err) | |
8547 | err = niu_init_link(np); | |
8548 | ||
8549 | return err; | |
8550 | } | |
8551 | ||
8552 | static LIST_HEAD(niu_parent_list); | |
8553 | static DEFINE_MUTEX(niu_parent_lock); | |
8554 | static int niu_parent_index; | |
8555 | ||
8556 | static ssize_t show_port_phy(struct device *dev, | |
8557 | struct device_attribute *attr, char *buf) | |
8558 | { | |
8559 | struct platform_device *plat_dev = to_platform_device(dev); | |
8560 | struct niu_parent *p = plat_dev->dev.platform_data; | |
8561 | u32 port_phy = p->port_phy; | |
8562 | char *orig_buf = buf; | |
8563 | int i; | |
8564 | ||
8565 | if (port_phy == PORT_PHY_UNKNOWN || | |
8566 | port_phy == PORT_PHY_INVALID) | |
8567 | return 0; | |
8568 | ||
8569 | for (i = 0; i < p->num_ports; i++) { | |
8570 | const char *type_str; | |
8571 | int type; | |
8572 | ||
8573 | type = phy_decode(port_phy, i); | |
8574 | if (type == PORT_TYPE_10G) | |
8575 | type_str = "10G"; | |
8576 | else | |
8577 | type_str = "1G"; | |
8578 | buf += sprintf(buf, | |
8579 | (i == 0) ? "%s" : " %s", | |
8580 | type_str); | |
8581 | } | |
8582 | buf += sprintf(buf, "\n"); | |
8583 | return buf - orig_buf; | |
8584 | } | |
8585 | ||
8586 | static ssize_t show_plat_type(struct device *dev, | |
8587 | struct device_attribute *attr, char *buf) | |
8588 | { | |
8589 | struct platform_device *plat_dev = to_platform_device(dev); | |
8590 | struct niu_parent *p = plat_dev->dev.platform_data; | |
8591 | const char *type_str; | |
8592 | ||
8593 | switch (p->plat_type) { | |
8594 | case PLAT_TYPE_ATLAS: | |
8595 | type_str = "atlas"; | |
8596 | break; | |
8597 | case PLAT_TYPE_NIU: | |
8598 | type_str = "niu"; | |
8599 | break; | |
8600 | case PLAT_TYPE_VF_P0: | |
8601 | type_str = "vf_p0"; | |
8602 | break; | |
8603 | case PLAT_TYPE_VF_P1: | |
8604 | type_str = "vf_p1"; | |
8605 | break; | |
8606 | default: | |
8607 | type_str = "unknown"; | |
8608 | break; | |
8609 | } | |
8610 | ||
8611 | return sprintf(buf, "%s\n", type_str); | |
8612 | } | |
8613 | ||
8614 | static ssize_t __show_chan_per_port(struct device *dev, | |
8615 | struct device_attribute *attr, char *buf, | |
8616 | int rx) | |
8617 | { | |
8618 | struct platform_device *plat_dev = to_platform_device(dev); | |
8619 | struct niu_parent *p = plat_dev->dev.platform_data; | |
8620 | char *orig_buf = buf; | |
8621 | u8 *arr; | |
8622 | int i; | |
8623 | ||
8624 | arr = (rx ? p->rxchan_per_port : p->txchan_per_port); | |
8625 | ||
8626 | for (i = 0; i < p->num_ports; i++) { | |
8627 | buf += sprintf(buf, | |
8628 | (i == 0) ? "%d" : " %d", | |
8629 | arr[i]); | |
8630 | } | |
8631 | buf += sprintf(buf, "\n"); | |
8632 | ||
8633 | return buf - orig_buf; | |
8634 | } | |
8635 | ||
8636 | static ssize_t show_rxchan_per_port(struct device *dev, | |
8637 | struct device_attribute *attr, char *buf) | |
8638 | { | |
8639 | return __show_chan_per_port(dev, attr, buf, 1); | |
8640 | } | |
8641 | ||
8642 | static ssize_t show_txchan_per_port(struct device *dev, | |
8643 | struct device_attribute *attr, char *buf) | |
8644 | { | |
8645 | return __show_chan_per_port(dev, attr, buf, 1); | |
8646 | } | |
8647 | ||
8648 | static ssize_t show_num_ports(struct device *dev, | |
8649 | struct device_attribute *attr, char *buf) | |
8650 | { | |
8651 | struct platform_device *plat_dev = to_platform_device(dev); | |
8652 | struct niu_parent *p = plat_dev->dev.platform_data; | |
8653 | ||
8654 | return sprintf(buf, "%d\n", p->num_ports); | |
8655 | } | |
8656 | ||
8657 | static struct device_attribute niu_parent_attributes[] = { | |
8658 | __ATTR(port_phy, S_IRUGO, show_port_phy, NULL), | |
8659 | __ATTR(plat_type, S_IRUGO, show_plat_type, NULL), | |
8660 | __ATTR(rxchan_per_port, S_IRUGO, show_rxchan_per_port, NULL), | |
8661 | __ATTR(txchan_per_port, S_IRUGO, show_txchan_per_port, NULL), | |
8662 | __ATTR(num_ports, S_IRUGO, show_num_ports, NULL), | |
8663 | {} | |
8664 | }; | |
8665 | ||
8666 | static struct niu_parent * __devinit niu_new_parent(struct niu *np, | |
8667 | union niu_parent_id *id, | |
8668 | u8 ptype) | |
8669 | { | |
8670 | struct platform_device *plat_dev; | |
8671 | struct niu_parent *p; | |
8672 | int i; | |
8673 | ||
8674 | niudbg(PROBE, "niu_new_parent: Creating new parent.\n"); | |
8675 | ||
8676 | plat_dev = platform_device_register_simple("niu", niu_parent_index, | |
8677 | NULL, 0); | |
8678 | if (!plat_dev) | |
8679 | return NULL; | |
8680 | ||
8681 | for (i = 0; attr_name(niu_parent_attributes[i]); i++) { | |
8682 | int err = device_create_file(&plat_dev->dev, | |
8683 | &niu_parent_attributes[i]); | |
8684 | if (err) | |
8685 | goto fail_unregister; | |
8686 | } | |
8687 | ||
8688 | p = kzalloc(sizeof(*p), GFP_KERNEL); | |
8689 | if (!p) | |
8690 | goto fail_unregister; | |
8691 | ||
8692 | p->index = niu_parent_index++; | |
8693 | ||
8694 | plat_dev->dev.platform_data = p; | |
8695 | p->plat_dev = plat_dev; | |
8696 | ||
8697 | memcpy(&p->id, id, sizeof(*id)); | |
8698 | p->plat_type = ptype; | |
8699 | INIT_LIST_HEAD(&p->list); | |
8700 | atomic_set(&p->refcnt, 0); | |
8701 | list_add(&p->list, &niu_parent_list); | |
8702 | spin_lock_init(&p->lock); | |
8703 | ||
8704 | p->rxdma_clock_divider = 7500; | |
8705 | ||
8706 | p->tcam_num_entries = NIU_PCI_TCAM_ENTRIES; | |
8707 | if (p->plat_type == PLAT_TYPE_NIU) | |
8708 | p->tcam_num_entries = NIU_NONPCI_TCAM_ENTRIES; | |
8709 | ||
8710 | for (i = CLASS_CODE_USER_PROG1; i <= CLASS_CODE_SCTP_IPV6; i++) { | |
8711 | int index = i - CLASS_CODE_USER_PROG1; | |
8712 | ||
8713 | p->tcam_key[index] = TCAM_KEY_TSEL; | |
8714 | p->flow_key[index] = (FLOW_KEY_IPSA | | |
8715 | FLOW_KEY_IPDA | | |
8716 | FLOW_KEY_PROTO | | |
8717 | (FLOW_KEY_L4_BYTE12 << | |
8718 | FLOW_KEY_L4_0_SHIFT) | | |
8719 | (FLOW_KEY_L4_BYTE12 << | |
8720 | FLOW_KEY_L4_1_SHIFT)); | |
8721 | } | |
8722 | ||
8723 | for (i = 0; i < LDN_MAX + 1; i++) | |
8724 | p->ldg_map[i] = LDG_INVALID; | |
8725 | ||
8726 | return p; | |
8727 | ||
8728 | fail_unregister: | |
8729 | platform_device_unregister(plat_dev); | |
8730 | return NULL; | |
8731 | } | |
8732 | ||
8733 | static struct niu_parent * __devinit niu_get_parent(struct niu *np, | |
8734 | union niu_parent_id *id, | |
8735 | u8 ptype) | |
8736 | { | |
8737 | struct niu_parent *p, *tmp; | |
8738 | int port = np->port; | |
8739 | ||
8740 | niudbg(PROBE, "niu_get_parent: platform_type[%u] port[%u]\n", | |
8741 | ptype, port); | |
8742 | ||
8743 | mutex_lock(&niu_parent_lock); | |
8744 | p = NULL; | |
8745 | list_for_each_entry(tmp, &niu_parent_list, list) { | |
8746 | if (!memcmp(id, &tmp->id, sizeof(*id))) { | |
8747 | p = tmp; | |
8748 | break; | |
8749 | } | |
8750 | } | |
8751 | if (!p) | |
8752 | p = niu_new_parent(np, id, ptype); | |
8753 | ||
8754 | if (p) { | |
8755 | char port_name[6]; | |
8756 | int err; | |
8757 | ||
8758 | sprintf(port_name, "port%d", port); | |
8759 | err = sysfs_create_link(&p->plat_dev->dev.kobj, | |
8760 | &np->device->kobj, | |
8761 | port_name); | |
8762 | if (!err) { | |
8763 | p->ports[port] = np; | |
8764 | atomic_inc(&p->refcnt); | |
8765 | } | |
8766 | } | |
8767 | mutex_unlock(&niu_parent_lock); | |
8768 | ||
8769 | return p; | |
8770 | } | |
8771 | ||
8772 | static void niu_put_parent(struct niu *np) | |
8773 | { | |
8774 | struct niu_parent *p = np->parent; | |
8775 | u8 port = np->port; | |
8776 | char port_name[6]; | |
8777 | ||
8778 | BUG_ON(!p || p->ports[port] != np); | |
8779 | ||
8780 | niudbg(PROBE, "niu_put_parent: port[%u]\n", port); | |
8781 | ||
8782 | sprintf(port_name, "port%d", port); | |
8783 | ||
8784 | mutex_lock(&niu_parent_lock); | |
8785 | ||
8786 | sysfs_remove_link(&p->plat_dev->dev.kobj, port_name); | |
8787 | ||
8788 | p->ports[port] = NULL; | |
8789 | np->parent = NULL; | |
8790 | ||
8791 | if (atomic_dec_and_test(&p->refcnt)) { | |
8792 | list_del(&p->list); | |
8793 | platform_device_unregister(p->plat_dev); | |
8794 | } | |
8795 | ||
8796 | mutex_unlock(&niu_parent_lock); | |
8797 | } | |
8798 | ||
8799 | static void *niu_pci_alloc_coherent(struct device *dev, size_t size, | |
8800 | u64 *handle, gfp_t flag) | |
8801 | { | |
8802 | dma_addr_t dh; | |
8803 | void *ret; | |
8804 | ||
8805 | ret = dma_alloc_coherent(dev, size, &dh, flag); | |
8806 | if (ret) | |
8807 | *handle = dh; | |
8808 | return ret; | |
8809 | } | |
8810 | ||
8811 | static void niu_pci_free_coherent(struct device *dev, size_t size, | |
8812 | void *cpu_addr, u64 handle) | |
8813 | { | |
8814 | dma_free_coherent(dev, size, cpu_addr, handle); | |
8815 | } | |
8816 | ||
8817 | static u64 niu_pci_map_page(struct device *dev, struct page *page, | |
8818 | unsigned long offset, size_t size, | |
8819 | enum dma_data_direction direction) | |
8820 | { | |
8821 | return dma_map_page(dev, page, offset, size, direction); | |
8822 | } | |
8823 | ||
8824 | static void niu_pci_unmap_page(struct device *dev, u64 dma_address, | |
8825 | size_t size, enum dma_data_direction direction) | |
8826 | { | |
8827 | return dma_unmap_page(dev, dma_address, size, direction); | |
8828 | } | |
8829 | ||
8830 | static u64 niu_pci_map_single(struct device *dev, void *cpu_addr, | |
8831 | size_t size, | |
8832 | enum dma_data_direction direction) | |
8833 | { | |
8834 | return dma_map_single(dev, cpu_addr, size, direction); | |
8835 | } | |
8836 | ||
8837 | static void niu_pci_unmap_single(struct device *dev, u64 dma_address, | |
8838 | size_t size, | |
8839 | enum dma_data_direction direction) | |
8840 | { | |
8841 | dma_unmap_single(dev, dma_address, size, direction); | |
8842 | } | |
8843 | ||
8844 | static const struct niu_ops niu_pci_ops = { | |
8845 | .alloc_coherent = niu_pci_alloc_coherent, | |
8846 | .free_coherent = niu_pci_free_coherent, | |
8847 | .map_page = niu_pci_map_page, | |
8848 | .unmap_page = niu_pci_unmap_page, | |
8849 | .map_single = niu_pci_map_single, | |
8850 | .unmap_single = niu_pci_unmap_single, | |
8851 | }; | |
8852 | ||
8853 | static void __devinit niu_driver_version(void) | |
8854 | { | |
8855 | static int niu_version_printed; | |
8856 | ||
8857 | if (niu_version_printed++ == 0) | |
8858 | pr_info("%s", version); | |
8859 | } | |
8860 | ||
8861 | static struct net_device * __devinit niu_alloc_and_init( | |
8862 | struct device *gen_dev, struct pci_dev *pdev, | |
8863 | struct of_device *op, const struct niu_ops *ops, | |
8864 | u8 port) | |
8865 | { | |
b4c21639 | 8866 | struct net_device *dev; |
a3138df9 DM |
8867 | struct niu *np; |
8868 | ||
b4c21639 | 8869 | dev = alloc_etherdev_mq(sizeof(struct niu), NIU_NUM_TXCHAN); |
a3138df9 DM |
8870 | if (!dev) { |
8871 | dev_err(gen_dev, PFX "Etherdev alloc failed, aborting.\n"); | |
8872 | return NULL; | |
8873 | } | |
8874 | ||
8875 | SET_NETDEV_DEV(dev, gen_dev); | |
8876 | ||
8877 | np = netdev_priv(dev); | |
8878 | np->dev = dev; | |
8879 | np->pdev = pdev; | |
8880 | np->op = op; | |
8881 | np->device = gen_dev; | |
8882 | np->ops = ops; | |
8883 | ||
8884 | np->msg_enable = niu_debug; | |
8885 | ||
8886 | spin_lock_init(&np->lock); | |
8887 | INIT_WORK(&np->reset_task, niu_reset_task); | |
8888 | ||
8889 | np->port = port; | |
8890 | ||
8891 | return dev; | |
8892 | } | |
8893 | ||
8894 | static void __devinit niu_assign_netdev_ops(struct net_device *dev) | |
8895 | { | |
8896 | dev->open = niu_open; | |
8897 | dev->stop = niu_close; | |
8898 | dev->get_stats = niu_get_stats; | |
8899 | dev->set_multicast_list = niu_set_rx_mode; | |
8900 | dev->set_mac_address = niu_set_mac_addr; | |
8901 | dev->do_ioctl = niu_ioctl; | |
8902 | dev->tx_timeout = niu_tx_timeout; | |
8903 | dev->hard_start_xmit = niu_start_xmit; | |
8904 | dev->ethtool_ops = &niu_ethtool_ops; | |
8905 | dev->watchdog_timeo = NIU_TX_TIMEOUT; | |
8906 | dev->change_mtu = niu_change_mtu; | |
8907 | } | |
8908 | ||
8909 | static void __devinit niu_device_announce(struct niu *np) | |
8910 | { | |
8911 | struct net_device *dev = np->dev; | |
2caf62f6 | 8912 | DECLARE_MAC_BUF(mac); |
a3138df9 | 8913 | |
2caf62f6 JP |
8914 | pr_info("%s: NIU Ethernet %s\n", |
8915 | dev->name, print_mac(mac, dev->dev_addr)); | |
a3138df9 | 8916 | |
5fbd7e24 MW |
8917 | if (np->parent->plat_type == PLAT_TYPE_ATCA_CP3220) { |
8918 | pr_info("%s: Port type[%s] mode[%s:%s] XCVR[%s] phy[%s]\n", | |
8919 | dev->name, | |
8920 | (np->flags & NIU_FLAGS_XMAC ? "XMAC" : "BMAC"), | |
8921 | (np->flags & NIU_FLAGS_10G ? "10G" : "1G"), | |
8922 | (np->flags & NIU_FLAGS_FIBER ? "RGMII FIBER" : "SERDES"), | |
8923 | (np->mac_xcvr == MAC_XCVR_MII ? "MII" : | |
8924 | (np->mac_xcvr == MAC_XCVR_PCS ? "PCS" : "XPCS")), | |
8925 | np->vpd.phy_type); | |
8926 | } else { | |
8927 | pr_info("%s: Port type[%s] mode[%s:%s] XCVR[%s] phy[%s]\n", | |
8928 | dev->name, | |
8929 | (np->flags & NIU_FLAGS_XMAC ? "XMAC" : "BMAC"), | |
8930 | (np->flags & NIU_FLAGS_10G ? "10G" : "1G"), | |
e3e081e1 SB |
8931 | (np->flags & NIU_FLAGS_FIBER ? "FIBER" : |
8932 | (np->flags & NIU_FLAGS_XCVR_SERDES ? "SERDES" : | |
8933 | "COPPER")), | |
5fbd7e24 MW |
8934 | (np->mac_xcvr == MAC_XCVR_MII ? "MII" : |
8935 | (np->mac_xcvr == MAC_XCVR_PCS ? "PCS" : "XPCS")), | |
8936 | np->vpd.phy_type); | |
8937 | } | |
a3138df9 DM |
8938 | } |
8939 | ||
8940 | static int __devinit niu_pci_init_one(struct pci_dev *pdev, | |
8941 | const struct pci_device_id *ent) | |
8942 | { | |
a3138df9 DM |
8943 | union niu_parent_id parent_id; |
8944 | struct net_device *dev; | |
8945 | struct niu *np; | |
8946 | int err, pos; | |
8947 | u64 dma_mask; | |
8948 | u16 val16; | |
8949 | ||
8950 | niu_driver_version(); | |
8951 | ||
8952 | err = pci_enable_device(pdev); | |
8953 | if (err) { | |
8954 | dev_err(&pdev->dev, PFX "Cannot enable PCI device, " | |
8955 | "aborting.\n"); | |
8956 | return err; | |
8957 | } | |
8958 | ||
8959 | if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM) || | |
8960 | !(pci_resource_flags(pdev, 2) & IORESOURCE_MEM)) { | |
8961 | dev_err(&pdev->dev, PFX "Cannot find proper PCI device " | |
8962 | "base addresses, aborting.\n"); | |
8963 | err = -ENODEV; | |
8964 | goto err_out_disable_pdev; | |
8965 | } | |
8966 | ||
8967 | err = pci_request_regions(pdev, DRV_MODULE_NAME); | |
8968 | if (err) { | |
8969 | dev_err(&pdev->dev, PFX "Cannot obtain PCI resources, " | |
8970 | "aborting.\n"); | |
8971 | goto err_out_disable_pdev; | |
8972 | } | |
8973 | ||
8974 | pos = pci_find_capability(pdev, PCI_CAP_ID_EXP); | |
8975 | if (pos <= 0) { | |
8976 | dev_err(&pdev->dev, PFX "Cannot find PCI Express capability, " | |
8977 | "aborting.\n"); | |
8978 | goto err_out_free_res; | |
8979 | } | |
8980 | ||
8981 | dev = niu_alloc_and_init(&pdev->dev, pdev, NULL, | |
8982 | &niu_pci_ops, PCI_FUNC(pdev->devfn)); | |
8983 | if (!dev) { | |
8984 | err = -ENOMEM; | |
8985 | goto err_out_free_res; | |
8986 | } | |
8987 | np = netdev_priv(dev); | |
8988 | ||
8989 | memset(&parent_id, 0, sizeof(parent_id)); | |
8990 | parent_id.pci.domain = pci_domain_nr(pdev->bus); | |
8991 | parent_id.pci.bus = pdev->bus->number; | |
8992 | parent_id.pci.device = PCI_SLOT(pdev->devfn); | |
8993 | ||
8994 | np->parent = niu_get_parent(np, &parent_id, | |
8995 | PLAT_TYPE_ATLAS); | |
8996 | if (!np->parent) { | |
8997 | err = -ENOMEM; | |
8998 | goto err_out_free_dev; | |
8999 | } | |
9000 | ||
9001 | pci_read_config_word(pdev, pos + PCI_EXP_DEVCTL, &val16); | |
9002 | val16 &= ~PCI_EXP_DEVCTL_NOSNOOP_EN; | |
9003 | val16 |= (PCI_EXP_DEVCTL_CERE | | |
9004 | PCI_EXP_DEVCTL_NFERE | | |
9005 | PCI_EXP_DEVCTL_FERE | | |
9006 | PCI_EXP_DEVCTL_URRE | | |
9007 | PCI_EXP_DEVCTL_RELAX_EN); | |
9008 | pci_write_config_word(pdev, pos + PCI_EXP_DEVCTL, val16); | |
9009 | ||
9010 | dma_mask = DMA_44BIT_MASK; | |
9011 | err = pci_set_dma_mask(pdev, dma_mask); | |
9012 | if (!err) { | |
9013 | dev->features |= NETIF_F_HIGHDMA; | |
9014 | err = pci_set_consistent_dma_mask(pdev, dma_mask); | |
9015 | if (err) { | |
9016 | dev_err(&pdev->dev, PFX "Unable to obtain 44 bit " | |
9017 | "DMA for consistent allocations, " | |
9018 | "aborting.\n"); | |
9019 | goto err_out_release_parent; | |
9020 | } | |
9021 | } | |
9022 | if (err || dma_mask == DMA_32BIT_MASK) { | |
9023 | err = pci_set_dma_mask(pdev, DMA_32BIT_MASK); | |
9024 | if (err) { | |
9025 | dev_err(&pdev->dev, PFX "No usable DMA configuration, " | |
9026 | "aborting.\n"); | |
9027 | goto err_out_release_parent; | |
9028 | } | |
9029 | } | |
9030 | ||
9031 | dev->features |= (NETIF_F_SG | NETIF_F_HW_CSUM); | |
9032 | ||
19ecb6ba | 9033 | np->regs = pci_ioremap_bar(pdev, 0); |
a3138df9 DM |
9034 | if (!np->regs) { |
9035 | dev_err(&pdev->dev, PFX "Cannot map device registers, " | |
9036 | "aborting.\n"); | |
9037 | err = -ENOMEM; | |
9038 | goto err_out_release_parent; | |
9039 | } | |
9040 | ||
9041 | pci_set_master(pdev); | |
9042 | pci_save_state(pdev); | |
9043 | ||
9044 | dev->irq = pdev->irq; | |
9045 | ||
9046 | niu_assign_netdev_ops(dev); | |
9047 | ||
9048 | err = niu_get_invariants(np); | |
9049 | if (err) { | |
9050 | if (err != -ENODEV) | |
9051 | dev_err(&pdev->dev, PFX "Problem fetching invariants " | |
9052 | "of chip, aborting.\n"); | |
9053 | goto err_out_iounmap; | |
9054 | } | |
9055 | ||
9056 | err = register_netdev(dev); | |
9057 | if (err) { | |
9058 | dev_err(&pdev->dev, PFX "Cannot register net device, " | |
9059 | "aborting.\n"); | |
9060 | goto err_out_iounmap; | |
9061 | } | |
9062 | ||
9063 | pci_set_drvdata(pdev, dev); | |
9064 | ||
9065 | niu_device_announce(np); | |
9066 | ||
9067 | return 0; | |
9068 | ||
9069 | err_out_iounmap: | |
9070 | if (np->regs) { | |
9071 | iounmap(np->regs); | |
9072 | np->regs = NULL; | |
9073 | } | |
9074 | ||
9075 | err_out_release_parent: | |
9076 | niu_put_parent(np); | |
9077 | ||
9078 | err_out_free_dev: | |
9079 | free_netdev(dev); | |
9080 | ||
9081 | err_out_free_res: | |
9082 | pci_release_regions(pdev); | |
9083 | ||
9084 | err_out_disable_pdev: | |
9085 | pci_disable_device(pdev); | |
9086 | pci_set_drvdata(pdev, NULL); | |
9087 | ||
9088 | return err; | |
9089 | } | |
9090 | ||
9091 | static void __devexit niu_pci_remove_one(struct pci_dev *pdev) | |
9092 | { | |
9093 | struct net_device *dev = pci_get_drvdata(pdev); | |
9094 | ||
9095 | if (dev) { | |
9096 | struct niu *np = netdev_priv(dev); | |
9097 | ||
9098 | unregister_netdev(dev); | |
9099 | if (np->regs) { | |
9100 | iounmap(np->regs); | |
9101 | np->regs = NULL; | |
9102 | } | |
9103 | ||
9104 | niu_ldg_free(np); | |
9105 | ||
9106 | niu_put_parent(np); | |
9107 | ||
9108 | free_netdev(dev); | |
9109 | pci_release_regions(pdev); | |
9110 | pci_disable_device(pdev); | |
9111 | pci_set_drvdata(pdev, NULL); | |
9112 | } | |
9113 | } | |
9114 | ||
9115 | static int niu_suspend(struct pci_dev *pdev, pm_message_t state) | |
9116 | { | |
9117 | struct net_device *dev = pci_get_drvdata(pdev); | |
9118 | struct niu *np = netdev_priv(dev); | |
9119 | unsigned long flags; | |
9120 | ||
9121 | if (!netif_running(dev)) | |
9122 | return 0; | |
9123 | ||
9124 | flush_scheduled_work(); | |
9125 | niu_netif_stop(np); | |
9126 | ||
9127 | del_timer_sync(&np->timer); | |
9128 | ||
9129 | spin_lock_irqsave(&np->lock, flags); | |
9130 | niu_enable_interrupts(np, 0); | |
9131 | spin_unlock_irqrestore(&np->lock, flags); | |
9132 | ||
9133 | netif_device_detach(dev); | |
9134 | ||
9135 | spin_lock_irqsave(&np->lock, flags); | |
9136 | niu_stop_hw(np); | |
9137 | spin_unlock_irqrestore(&np->lock, flags); | |
9138 | ||
9139 | pci_save_state(pdev); | |
9140 | ||
9141 | return 0; | |
9142 | } | |
9143 | ||
9144 | static int niu_resume(struct pci_dev *pdev) | |
9145 | { | |
9146 | struct net_device *dev = pci_get_drvdata(pdev); | |
9147 | struct niu *np = netdev_priv(dev); | |
9148 | unsigned long flags; | |
9149 | int err; | |
9150 | ||
9151 | if (!netif_running(dev)) | |
9152 | return 0; | |
9153 | ||
9154 | pci_restore_state(pdev); | |
9155 | ||
9156 | netif_device_attach(dev); | |
9157 | ||
9158 | spin_lock_irqsave(&np->lock, flags); | |
9159 | ||
9160 | err = niu_init_hw(np); | |
9161 | if (!err) { | |
9162 | np->timer.expires = jiffies + HZ; | |
9163 | add_timer(&np->timer); | |
9164 | niu_netif_start(np); | |
9165 | } | |
9166 | ||
9167 | spin_unlock_irqrestore(&np->lock, flags); | |
9168 | ||
9169 | return err; | |
9170 | } | |
9171 | ||
9172 | static struct pci_driver niu_pci_driver = { | |
9173 | .name = DRV_MODULE_NAME, | |
9174 | .id_table = niu_pci_tbl, | |
9175 | .probe = niu_pci_init_one, | |
9176 | .remove = __devexit_p(niu_pci_remove_one), | |
9177 | .suspend = niu_suspend, | |
9178 | .resume = niu_resume, | |
9179 | }; | |
9180 | ||
9181 | #ifdef CONFIG_SPARC64 | |
9182 | static void *niu_phys_alloc_coherent(struct device *dev, size_t size, | |
9183 | u64 *dma_addr, gfp_t flag) | |
9184 | { | |
9185 | unsigned long order = get_order(size); | |
9186 | unsigned long page = __get_free_pages(flag, order); | |
9187 | ||
9188 | if (page == 0UL) | |
9189 | return NULL; | |
9190 | memset((char *)page, 0, PAGE_SIZE << order); | |
9191 | *dma_addr = __pa(page); | |
9192 | ||
9193 | return (void *) page; | |
9194 | } | |
9195 | ||
9196 | static void niu_phys_free_coherent(struct device *dev, size_t size, | |
9197 | void *cpu_addr, u64 handle) | |
9198 | { | |
9199 | unsigned long order = get_order(size); | |
9200 | ||
9201 | free_pages((unsigned long) cpu_addr, order); | |
9202 | } | |
9203 | ||
9204 | static u64 niu_phys_map_page(struct device *dev, struct page *page, | |
9205 | unsigned long offset, size_t size, | |
9206 | enum dma_data_direction direction) | |
9207 | { | |
9208 | return page_to_phys(page) + offset; | |
9209 | } | |
9210 | ||
9211 | static void niu_phys_unmap_page(struct device *dev, u64 dma_address, | |
9212 | size_t size, enum dma_data_direction direction) | |
9213 | { | |
9214 | /* Nothing to do. */ | |
9215 | } | |
9216 | ||
9217 | static u64 niu_phys_map_single(struct device *dev, void *cpu_addr, | |
9218 | size_t size, | |
9219 | enum dma_data_direction direction) | |
9220 | { | |
9221 | return __pa(cpu_addr); | |
9222 | } | |
9223 | ||
9224 | static void niu_phys_unmap_single(struct device *dev, u64 dma_address, | |
9225 | size_t size, | |
9226 | enum dma_data_direction direction) | |
9227 | { | |
9228 | /* Nothing to do. */ | |
9229 | } | |
9230 | ||
9231 | static const struct niu_ops niu_phys_ops = { | |
9232 | .alloc_coherent = niu_phys_alloc_coherent, | |
9233 | .free_coherent = niu_phys_free_coherent, | |
9234 | .map_page = niu_phys_map_page, | |
9235 | .unmap_page = niu_phys_unmap_page, | |
9236 | .map_single = niu_phys_map_single, | |
9237 | .unmap_single = niu_phys_unmap_single, | |
9238 | }; | |
9239 | ||
9240 | static unsigned long res_size(struct resource *r) | |
9241 | { | |
9242 | return r->end - r->start + 1UL; | |
9243 | } | |
9244 | ||
9245 | static int __devinit niu_of_probe(struct of_device *op, | |
9246 | const struct of_device_id *match) | |
9247 | { | |
9248 | union niu_parent_id parent_id; | |
9249 | struct net_device *dev; | |
9250 | struct niu *np; | |
9251 | const u32 *reg; | |
9252 | int err; | |
9253 | ||
9254 | niu_driver_version(); | |
9255 | ||
9256 | reg = of_get_property(op->node, "reg", NULL); | |
9257 | if (!reg) { | |
9258 | dev_err(&op->dev, PFX "%s: No 'reg' property, aborting.\n", | |
9259 | op->node->full_name); | |
9260 | return -ENODEV; | |
9261 | } | |
9262 | ||
9263 | dev = niu_alloc_and_init(&op->dev, NULL, op, | |
9264 | &niu_phys_ops, reg[0] & 0x1); | |
9265 | if (!dev) { | |
9266 | err = -ENOMEM; | |
9267 | goto err_out; | |
9268 | } | |
9269 | np = netdev_priv(dev); | |
9270 | ||
9271 | memset(&parent_id, 0, sizeof(parent_id)); | |
9272 | parent_id.of = of_get_parent(op->node); | |
9273 | ||
9274 | np->parent = niu_get_parent(np, &parent_id, | |
9275 | PLAT_TYPE_NIU); | |
9276 | if (!np->parent) { | |
9277 | err = -ENOMEM; | |
9278 | goto err_out_free_dev; | |
9279 | } | |
9280 | ||
9281 | dev->features |= (NETIF_F_SG | NETIF_F_HW_CSUM); | |
9282 | ||
9283 | np->regs = of_ioremap(&op->resource[1], 0, | |
9284 | res_size(&op->resource[1]), | |
9285 | "niu regs"); | |
9286 | if (!np->regs) { | |
9287 | dev_err(&op->dev, PFX "Cannot map device registers, " | |
9288 | "aborting.\n"); | |
9289 | err = -ENOMEM; | |
9290 | goto err_out_release_parent; | |
9291 | } | |
9292 | ||
9293 | np->vir_regs_1 = of_ioremap(&op->resource[2], 0, | |
9294 | res_size(&op->resource[2]), | |
9295 | "niu vregs-1"); | |
9296 | if (!np->vir_regs_1) { | |
9297 | dev_err(&op->dev, PFX "Cannot map device vir registers 1, " | |
9298 | "aborting.\n"); | |
9299 | err = -ENOMEM; | |
9300 | goto err_out_iounmap; | |
9301 | } | |
9302 | ||
9303 | np->vir_regs_2 = of_ioremap(&op->resource[3], 0, | |
9304 | res_size(&op->resource[3]), | |
9305 | "niu vregs-2"); | |
9306 | if (!np->vir_regs_2) { | |
9307 | dev_err(&op->dev, PFX "Cannot map device vir registers 2, " | |
9308 | "aborting.\n"); | |
9309 | err = -ENOMEM; | |
9310 | goto err_out_iounmap; | |
9311 | } | |
9312 | ||
9313 | niu_assign_netdev_ops(dev); | |
9314 | ||
9315 | err = niu_get_invariants(np); | |
9316 | if (err) { | |
9317 | if (err != -ENODEV) | |
9318 | dev_err(&op->dev, PFX "Problem fetching invariants " | |
9319 | "of chip, aborting.\n"); | |
9320 | goto err_out_iounmap; | |
9321 | } | |
9322 | ||
9323 | err = register_netdev(dev); | |
9324 | if (err) { | |
9325 | dev_err(&op->dev, PFX "Cannot register net device, " | |
9326 | "aborting.\n"); | |
9327 | goto err_out_iounmap; | |
9328 | } | |
9329 | ||
9330 | dev_set_drvdata(&op->dev, dev); | |
9331 | ||
9332 | niu_device_announce(np); | |
9333 | ||
9334 | return 0; | |
9335 | ||
9336 | err_out_iounmap: | |
9337 | if (np->vir_regs_1) { | |
9338 | of_iounmap(&op->resource[2], np->vir_regs_1, | |
9339 | res_size(&op->resource[2])); | |
9340 | np->vir_regs_1 = NULL; | |
9341 | } | |
9342 | ||
9343 | if (np->vir_regs_2) { | |
9344 | of_iounmap(&op->resource[3], np->vir_regs_2, | |
9345 | res_size(&op->resource[3])); | |
9346 | np->vir_regs_2 = NULL; | |
9347 | } | |
9348 | ||
9349 | if (np->regs) { | |
9350 | of_iounmap(&op->resource[1], np->regs, | |
9351 | res_size(&op->resource[1])); | |
9352 | np->regs = NULL; | |
9353 | } | |
9354 | ||
9355 | err_out_release_parent: | |
9356 | niu_put_parent(np); | |
9357 | ||
9358 | err_out_free_dev: | |
9359 | free_netdev(dev); | |
9360 | ||
9361 | err_out: | |
9362 | return err; | |
9363 | } | |
9364 | ||
9365 | static int __devexit niu_of_remove(struct of_device *op) | |
9366 | { | |
9367 | struct net_device *dev = dev_get_drvdata(&op->dev); | |
9368 | ||
9369 | if (dev) { | |
9370 | struct niu *np = netdev_priv(dev); | |
9371 | ||
9372 | unregister_netdev(dev); | |
9373 | ||
9374 | if (np->vir_regs_1) { | |
9375 | of_iounmap(&op->resource[2], np->vir_regs_1, | |
9376 | res_size(&op->resource[2])); | |
9377 | np->vir_regs_1 = NULL; | |
9378 | } | |
9379 | ||
9380 | if (np->vir_regs_2) { | |
9381 | of_iounmap(&op->resource[3], np->vir_regs_2, | |
9382 | res_size(&op->resource[3])); | |
9383 | np->vir_regs_2 = NULL; | |
9384 | } | |
9385 | ||
9386 | if (np->regs) { | |
9387 | of_iounmap(&op->resource[1], np->regs, | |
9388 | res_size(&op->resource[1])); | |
9389 | np->regs = NULL; | |
9390 | } | |
9391 | ||
9392 | niu_ldg_free(np); | |
9393 | ||
9394 | niu_put_parent(np); | |
9395 | ||
9396 | free_netdev(dev); | |
9397 | dev_set_drvdata(&op->dev, NULL); | |
9398 | } | |
9399 | return 0; | |
9400 | } | |
9401 | ||
fd098316 | 9402 | static const struct of_device_id niu_match[] = { |
a3138df9 DM |
9403 | { |
9404 | .name = "network", | |
9405 | .compatible = "SUNW,niusl", | |
9406 | }, | |
9407 | {}, | |
9408 | }; | |
9409 | MODULE_DEVICE_TABLE(of, niu_match); | |
9410 | ||
9411 | static struct of_platform_driver niu_of_driver = { | |
9412 | .name = "niu", | |
9413 | .match_table = niu_match, | |
9414 | .probe = niu_of_probe, | |
9415 | .remove = __devexit_p(niu_of_remove), | |
9416 | }; | |
9417 | ||
9418 | #endif /* CONFIG_SPARC64 */ | |
9419 | ||
9420 | static int __init niu_init(void) | |
9421 | { | |
9422 | int err = 0; | |
9423 | ||
81429973 | 9424 | BUILD_BUG_ON(PAGE_SIZE < 4 * 1024); |
a3138df9 DM |
9425 | |
9426 | niu_debug = netif_msg_init(debug, NIU_MSG_DEFAULT); | |
9427 | ||
9428 | #ifdef CONFIG_SPARC64 | |
9429 | err = of_register_driver(&niu_of_driver, &of_bus_type); | |
9430 | #endif | |
9431 | ||
9432 | if (!err) { | |
9433 | err = pci_register_driver(&niu_pci_driver); | |
9434 | #ifdef CONFIG_SPARC64 | |
9435 | if (err) | |
9436 | of_unregister_driver(&niu_of_driver); | |
9437 | #endif | |
9438 | } | |
9439 | ||
9440 | return err; | |
9441 | } | |
9442 | ||
9443 | static void __exit niu_exit(void) | |
9444 | { | |
9445 | pci_unregister_driver(&niu_pci_driver); | |
9446 | #ifdef CONFIG_SPARC64 | |
9447 | of_unregister_driver(&niu_of_driver); | |
9448 | #endif | |
9449 | } | |
9450 | ||
9451 | module_init(niu_init); | |
9452 | module_exit(niu_exit); |