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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 ": " | |
d8c3e23d DM |
36 | #define DRV_MODULE_VERSION "1.0" |
37 | #define DRV_MODULE_RELDATE "Nov 14, 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; | |
51e0f058 | 451 | u64 uninitialized_var(sig), mask, val; |
e3e081e1 SB |
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; | |
51e0f058 | 550 | u64 uninitialized_var(sig), mask, val; |
e3e081e1 SB |
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 | { | |
f166400b | 741 | u32 uninitialized_var(reset); |
a3138df9 DM |
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 | ||
38bb045d CB |
1118 | static int link_status_mii(struct niu *np, int *link_up_p) |
1119 | { | |
1120 | struct niu_link_config *lp = &np->link_config; | |
1121 | int err; | |
1122 | int bmsr, advert, ctrl1000, stat1000, lpa, bmcr, estatus; | |
1123 | int supported, advertising, active_speed, active_duplex; | |
1124 | ||
1125 | err = mii_read(np, np->phy_addr, MII_BMCR); | |
1126 | if (unlikely(err < 0)) | |
1127 | return err; | |
1128 | bmcr = err; | |
1129 | ||
1130 | err = mii_read(np, np->phy_addr, MII_BMSR); | |
1131 | if (unlikely(err < 0)) | |
1132 | return err; | |
1133 | bmsr = err; | |
1134 | ||
1135 | err = mii_read(np, np->phy_addr, MII_ADVERTISE); | |
1136 | if (unlikely(err < 0)) | |
1137 | return err; | |
1138 | advert = err; | |
1139 | ||
1140 | err = mii_read(np, np->phy_addr, MII_LPA); | |
1141 | if (unlikely(err < 0)) | |
1142 | return err; | |
1143 | lpa = err; | |
1144 | ||
1145 | if (likely(bmsr & BMSR_ESTATEN)) { | |
1146 | err = mii_read(np, np->phy_addr, MII_ESTATUS); | |
1147 | if (unlikely(err < 0)) | |
1148 | return err; | |
1149 | estatus = err; | |
1150 | ||
1151 | err = mii_read(np, np->phy_addr, MII_CTRL1000); | |
1152 | if (unlikely(err < 0)) | |
1153 | return err; | |
1154 | ctrl1000 = err; | |
1155 | ||
1156 | err = mii_read(np, np->phy_addr, MII_STAT1000); | |
1157 | if (unlikely(err < 0)) | |
1158 | return err; | |
1159 | stat1000 = err; | |
1160 | } else | |
1161 | estatus = ctrl1000 = stat1000 = 0; | |
1162 | ||
1163 | supported = 0; | |
1164 | if (bmsr & BMSR_ANEGCAPABLE) | |
1165 | supported |= SUPPORTED_Autoneg; | |
1166 | if (bmsr & BMSR_10HALF) | |
1167 | supported |= SUPPORTED_10baseT_Half; | |
1168 | if (bmsr & BMSR_10FULL) | |
1169 | supported |= SUPPORTED_10baseT_Full; | |
1170 | if (bmsr & BMSR_100HALF) | |
1171 | supported |= SUPPORTED_100baseT_Half; | |
1172 | if (bmsr & BMSR_100FULL) | |
1173 | supported |= SUPPORTED_100baseT_Full; | |
1174 | if (estatus & ESTATUS_1000_THALF) | |
1175 | supported |= SUPPORTED_1000baseT_Half; | |
1176 | if (estatus & ESTATUS_1000_TFULL) | |
1177 | supported |= SUPPORTED_1000baseT_Full; | |
1178 | lp->supported = supported; | |
1179 | ||
1180 | advertising = 0; | |
1181 | if (advert & ADVERTISE_10HALF) | |
1182 | advertising |= ADVERTISED_10baseT_Half; | |
1183 | if (advert & ADVERTISE_10FULL) | |
1184 | advertising |= ADVERTISED_10baseT_Full; | |
1185 | if (advert & ADVERTISE_100HALF) | |
1186 | advertising |= ADVERTISED_100baseT_Half; | |
1187 | if (advert & ADVERTISE_100FULL) | |
1188 | advertising |= ADVERTISED_100baseT_Full; | |
1189 | if (ctrl1000 & ADVERTISE_1000HALF) | |
1190 | advertising |= ADVERTISED_1000baseT_Half; | |
1191 | if (ctrl1000 & ADVERTISE_1000FULL) | |
1192 | advertising |= ADVERTISED_1000baseT_Full; | |
1193 | ||
1194 | if (bmcr & BMCR_ANENABLE) { | |
1195 | int neg, neg1000; | |
1196 | ||
1197 | lp->active_autoneg = 1; | |
1198 | advertising |= ADVERTISED_Autoneg; | |
1199 | ||
1200 | neg = advert & lpa; | |
1201 | neg1000 = (ctrl1000 << 2) & stat1000; | |
1202 | ||
1203 | if (neg1000 & (LPA_1000FULL | LPA_1000HALF)) | |
1204 | active_speed = SPEED_1000; | |
1205 | else if (neg & LPA_100) | |
1206 | active_speed = SPEED_100; | |
1207 | else if (neg & (LPA_10HALF | LPA_10FULL)) | |
1208 | active_speed = SPEED_10; | |
1209 | else | |
1210 | active_speed = SPEED_INVALID; | |
1211 | ||
1212 | if ((neg1000 & LPA_1000FULL) || (neg & LPA_DUPLEX)) | |
1213 | active_duplex = DUPLEX_FULL; | |
1214 | else if (active_speed != SPEED_INVALID) | |
1215 | active_duplex = DUPLEX_HALF; | |
1216 | else | |
1217 | active_duplex = DUPLEX_INVALID; | |
1218 | } else { | |
1219 | lp->active_autoneg = 0; | |
1220 | ||
1221 | if ((bmcr & BMCR_SPEED1000) && !(bmcr & BMCR_SPEED100)) | |
1222 | active_speed = SPEED_1000; | |
1223 | else if (bmcr & BMCR_SPEED100) | |
1224 | active_speed = SPEED_100; | |
1225 | else | |
1226 | active_speed = SPEED_10; | |
1227 | ||
1228 | if (bmcr & BMCR_FULLDPLX) | |
1229 | active_duplex = DUPLEX_FULL; | |
1230 | else | |
1231 | active_duplex = DUPLEX_HALF; | |
1232 | } | |
1233 | ||
1234 | lp->active_advertising = advertising; | |
1235 | lp->active_speed = active_speed; | |
1236 | lp->active_duplex = active_duplex; | |
1237 | *link_up_p = !!(bmsr & BMSR_LSTATUS); | |
1238 | ||
1239 | return 0; | |
1240 | } | |
1241 | ||
5fbd7e24 MW |
1242 | static int link_status_1g_rgmii(struct niu *np, int *link_up_p) |
1243 | { | |
1244 | struct niu_link_config *lp = &np->link_config; | |
1245 | u16 current_speed, bmsr; | |
1246 | unsigned long flags; | |
1247 | u8 current_duplex; | |
1248 | int err, link_up; | |
1249 | ||
1250 | link_up = 0; | |
1251 | current_speed = SPEED_INVALID; | |
1252 | current_duplex = DUPLEX_INVALID; | |
1253 | ||
1254 | spin_lock_irqsave(&np->lock, flags); | |
1255 | ||
1256 | err = -EINVAL; | |
1257 | ||
1258 | err = mii_read(np, np->phy_addr, MII_BMSR); | |
1259 | if (err < 0) | |
1260 | goto out; | |
1261 | ||
1262 | bmsr = err; | |
1263 | if (bmsr & BMSR_LSTATUS) { | |
1264 | u16 adv, lpa, common, estat; | |
1265 | ||
1266 | err = mii_read(np, np->phy_addr, MII_ADVERTISE); | |
1267 | if (err < 0) | |
1268 | goto out; | |
1269 | adv = err; | |
1270 | ||
1271 | err = mii_read(np, np->phy_addr, MII_LPA); | |
1272 | if (err < 0) | |
1273 | goto out; | |
1274 | lpa = err; | |
1275 | ||
1276 | common = adv & lpa; | |
1277 | ||
1278 | err = mii_read(np, np->phy_addr, MII_ESTATUS); | |
1279 | if (err < 0) | |
1280 | goto out; | |
1281 | estat = err; | |
1282 | link_up = 1; | |
1283 | current_speed = SPEED_1000; | |
1284 | current_duplex = DUPLEX_FULL; | |
1285 | ||
1286 | } | |
1287 | lp->active_speed = current_speed; | |
1288 | lp->active_duplex = current_duplex; | |
1289 | err = 0; | |
1290 | ||
1291 | out: | |
1292 | spin_unlock_irqrestore(&np->lock, flags); | |
1293 | ||
1294 | *link_up_p = link_up; | |
1295 | return err; | |
1296 | } | |
1297 | ||
38bb045d CB |
1298 | static int link_status_1g(struct niu *np, int *link_up_p) |
1299 | { | |
1300 | struct niu_link_config *lp = &np->link_config; | |
1301 | unsigned long flags; | |
1302 | int err; | |
1303 | ||
1304 | spin_lock_irqsave(&np->lock, flags); | |
1305 | ||
1306 | err = link_status_mii(np, link_up_p); | |
1307 | lp->supported |= SUPPORTED_TP; | |
1308 | lp->active_advertising |= ADVERTISED_TP; | |
1309 | ||
1310 | spin_unlock_irqrestore(&np->lock, flags); | |
1311 | return err; | |
1312 | } | |
1313 | ||
a3138df9 DM |
1314 | static int bcm8704_reset(struct niu *np) |
1315 | { | |
1316 | int err, limit; | |
1317 | ||
1318 | err = mdio_read(np, np->phy_addr, | |
1319 | BCM8704_PHYXS_DEV_ADDR, MII_BMCR); | |
1320 | if (err < 0) | |
1321 | return err; | |
1322 | err |= BMCR_RESET; | |
1323 | err = mdio_write(np, np->phy_addr, BCM8704_PHYXS_DEV_ADDR, | |
1324 | MII_BMCR, err); | |
1325 | if (err) | |
1326 | return err; | |
1327 | ||
1328 | limit = 1000; | |
1329 | while (--limit >= 0) { | |
1330 | err = mdio_read(np, np->phy_addr, | |
1331 | BCM8704_PHYXS_DEV_ADDR, MII_BMCR); | |
1332 | if (err < 0) | |
1333 | return err; | |
1334 | if (!(err & BMCR_RESET)) | |
1335 | break; | |
1336 | } | |
1337 | if (limit < 0) { | |
1338 | dev_err(np->device, PFX "Port %u PHY will not reset " | |
1339 | "(bmcr=%04x)\n", np->port, (err & 0xffff)); | |
1340 | return -ENODEV; | |
1341 | } | |
1342 | return 0; | |
1343 | } | |
1344 | ||
1345 | /* When written, certain PHY registers need to be read back twice | |
1346 | * in order for the bits to settle properly. | |
1347 | */ | |
1348 | static int bcm8704_user_dev3_readback(struct niu *np, int reg) | |
1349 | { | |
1350 | int err = mdio_read(np, np->phy_addr, BCM8704_USER_DEV3_ADDR, reg); | |
1351 | if (err < 0) | |
1352 | return err; | |
1353 | err = mdio_read(np, np->phy_addr, BCM8704_USER_DEV3_ADDR, reg); | |
1354 | if (err < 0) | |
1355 | return err; | |
1356 | return 0; | |
1357 | } | |
1358 | ||
a5d6ab56 MW |
1359 | static int bcm8706_init_user_dev3(struct niu *np) |
1360 | { | |
1361 | int err; | |
1362 | ||
1363 | ||
1364 | err = mdio_read(np, np->phy_addr, BCM8704_USER_DEV3_ADDR, | |
1365 | BCM8704_USER_OPT_DIGITAL_CTRL); | |
1366 | if (err < 0) | |
1367 | return err; | |
1368 | err &= ~USER_ODIG_CTRL_GPIOS; | |
1369 | err |= (0x3 << USER_ODIG_CTRL_GPIOS_SHIFT); | |
1370 | err |= USER_ODIG_CTRL_RESV2; | |
1371 | err = mdio_write(np, np->phy_addr, BCM8704_USER_DEV3_ADDR, | |
1372 | BCM8704_USER_OPT_DIGITAL_CTRL, err); | |
1373 | if (err) | |
1374 | return err; | |
1375 | ||
1376 | mdelay(1000); | |
1377 | ||
1378 | return 0; | |
1379 | } | |
1380 | ||
a3138df9 DM |
1381 | static int bcm8704_init_user_dev3(struct niu *np) |
1382 | { | |
1383 | int err; | |
1384 | ||
1385 | err = mdio_write(np, np->phy_addr, | |
1386 | BCM8704_USER_DEV3_ADDR, BCM8704_USER_CONTROL, | |
1387 | (USER_CONTROL_OPTXRST_LVL | | |
1388 | USER_CONTROL_OPBIASFLT_LVL | | |
1389 | USER_CONTROL_OBTMPFLT_LVL | | |
1390 | USER_CONTROL_OPPRFLT_LVL | | |
1391 | USER_CONTROL_OPTXFLT_LVL | | |
1392 | USER_CONTROL_OPRXLOS_LVL | | |
1393 | USER_CONTROL_OPRXFLT_LVL | | |
1394 | USER_CONTROL_OPTXON_LVL | | |
1395 | (0x3f << USER_CONTROL_RES1_SHIFT))); | |
1396 | if (err) | |
1397 | return err; | |
1398 | ||
1399 | err = mdio_write(np, np->phy_addr, | |
1400 | BCM8704_USER_DEV3_ADDR, BCM8704_USER_PMD_TX_CONTROL, | |
1401 | (USER_PMD_TX_CTL_XFP_CLKEN | | |
1402 | (1 << USER_PMD_TX_CTL_TX_DAC_TXD_SH) | | |
1403 | (2 << USER_PMD_TX_CTL_TX_DAC_TXCK_SH) | | |
1404 | USER_PMD_TX_CTL_TSCK_LPWREN)); | |
1405 | if (err) | |
1406 | return err; | |
1407 | ||
1408 | err = bcm8704_user_dev3_readback(np, BCM8704_USER_CONTROL); | |
1409 | if (err) | |
1410 | return err; | |
1411 | err = bcm8704_user_dev3_readback(np, BCM8704_USER_PMD_TX_CONTROL); | |
1412 | if (err) | |
1413 | return err; | |
1414 | ||
1415 | err = mdio_read(np, np->phy_addr, BCM8704_USER_DEV3_ADDR, | |
1416 | BCM8704_USER_OPT_DIGITAL_CTRL); | |
1417 | if (err < 0) | |
1418 | return err; | |
1419 | err &= ~USER_ODIG_CTRL_GPIOS; | |
1420 | err |= (0x3 << USER_ODIG_CTRL_GPIOS_SHIFT); | |
1421 | err = mdio_write(np, np->phy_addr, BCM8704_USER_DEV3_ADDR, | |
1422 | BCM8704_USER_OPT_DIGITAL_CTRL, err); | |
1423 | if (err) | |
1424 | return err; | |
1425 | ||
1426 | mdelay(1000); | |
1427 | ||
1428 | return 0; | |
1429 | } | |
1430 | ||
b0de8e40 ML |
1431 | static int mrvl88x2011_act_led(struct niu *np, int val) |
1432 | { | |
1433 | int err; | |
1434 | ||
1435 | err = mdio_read(np, np->phy_addr, MRVL88X2011_USER_DEV2_ADDR, | |
1436 | MRVL88X2011_LED_8_TO_11_CTL); | |
1437 | if (err < 0) | |
1438 | return err; | |
1439 | ||
1440 | err &= ~MRVL88X2011_LED(MRVL88X2011_LED_ACT,MRVL88X2011_LED_CTL_MASK); | |
1441 | err |= MRVL88X2011_LED(MRVL88X2011_LED_ACT,val); | |
1442 | ||
1443 | return mdio_write(np, np->phy_addr, MRVL88X2011_USER_DEV2_ADDR, | |
1444 | MRVL88X2011_LED_8_TO_11_CTL, err); | |
1445 | } | |
1446 | ||
1447 | static int mrvl88x2011_led_blink_rate(struct niu *np, int rate) | |
1448 | { | |
1449 | int err; | |
1450 | ||
1451 | err = mdio_read(np, np->phy_addr, MRVL88X2011_USER_DEV2_ADDR, | |
1452 | MRVL88X2011_LED_BLINK_CTL); | |
1453 | if (err >= 0) { | |
1454 | err &= ~MRVL88X2011_LED_BLKRATE_MASK; | |
1455 | err |= (rate << 4); | |
1456 | ||
1457 | err = mdio_write(np, np->phy_addr, MRVL88X2011_USER_DEV2_ADDR, | |
1458 | MRVL88X2011_LED_BLINK_CTL, err); | |
1459 | } | |
1460 | ||
1461 | return err; | |
1462 | } | |
1463 | ||
1464 | static int xcvr_init_10g_mrvl88x2011(struct niu *np) | |
1465 | { | |
1466 | int err; | |
1467 | ||
1468 | /* Set LED functions */ | |
1469 | err = mrvl88x2011_led_blink_rate(np, MRVL88X2011_LED_BLKRATE_134MS); | |
1470 | if (err) | |
1471 | return err; | |
1472 | ||
1473 | /* led activity */ | |
1474 | err = mrvl88x2011_act_led(np, MRVL88X2011_LED_CTL_OFF); | |
1475 | if (err) | |
1476 | return err; | |
1477 | ||
1478 | err = mdio_read(np, np->phy_addr, MRVL88X2011_USER_DEV3_ADDR, | |
1479 | MRVL88X2011_GENERAL_CTL); | |
1480 | if (err < 0) | |
1481 | return err; | |
1482 | ||
1483 | err |= MRVL88X2011_ENA_XFPREFCLK; | |
1484 | ||
1485 | err = mdio_write(np, np->phy_addr, MRVL88X2011_USER_DEV3_ADDR, | |
1486 | MRVL88X2011_GENERAL_CTL, err); | |
1487 | if (err < 0) | |
1488 | return err; | |
1489 | ||
1490 | err = mdio_read(np, np->phy_addr, MRVL88X2011_USER_DEV1_ADDR, | |
1491 | MRVL88X2011_PMA_PMD_CTL_1); | |
1492 | if (err < 0) | |
1493 | return err; | |
1494 | ||
1495 | if (np->link_config.loopback_mode == LOOPBACK_MAC) | |
1496 | err |= MRVL88X2011_LOOPBACK; | |
1497 | else | |
1498 | err &= ~MRVL88X2011_LOOPBACK; | |
1499 | ||
1500 | err = mdio_write(np, np->phy_addr, MRVL88X2011_USER_DEV1_ADDR, | |
1501 | MRVL88X2011_PMA_PMD_CTL_1, err); | |
1502 | if (err < 0) | |
1503 | return err; | |
1504 | ||
1505 | /* Enable PMD */ | |
1506 | return mdio_write(np, np->phy_addr, MRVL88X2011_USER_DEV1_ADDR, | |
1507 | MRVL88X2011_10G_PMD_TX_DIS, MRVL88X2011_ENA_PMDTX); | |
1508 | } | |
1509 | ||
a5d6ab56 MW |
1510 | |
1511 | static int xcvr_diag_bcm870x(struct niu *np) | |
a3138df9 | 1512 | { |
a3138df9 | 1513 | u16 analog_stat0, tx_alarm_status; |
a5d6ab56 | 1514 | int err = 0; |
a3138df9 DM |
1515 | |
1516 | #if 1 | |
1517 | err = mdio_read(np, np->phy_addr, BCM8704_PMA_PMD_DEV_ADDR, | |
1518 | MII_STAT1000); | |
1519 | if (err < 0) | |
1520 | return err; | |
1521 | pr_info(PFX "Port %u PMA_PMD(MII_STAT1000) [%04x]\n", | |
1522 | np->port, err); | |
1523 | ||
1524 | err = mdio_read(np, np->phy_addr, BCM8704_USER_DEV3_ADDR, 0x20); | |
1525 | if (err < 0) | |
1526 | return err; | |
1527 | pr_info(PFX "Port %u USER_DEV3(0x20) [%04x]\n", | |
1528 | np->port, err); | |
1529 | ||
1530 | err = mdio_read(np, np->phy_addr, BCM8704_PHYXS_DEV_ADDR, | |
1531 | MII_NWAYTEST); | |
1532 | if (err < 0) | |
1533 | return err; | |
1534 | pr_info(PFX "Port %u PHYXS(MII_NWAYTEST) [%04x]\n", | |
1535 | np->port, err); | |
1536 | #endif | |
1537 | ||
1538 | /* XXX dig this out it might not be so useful XXX */ | |
1539 | err = mdio_read(np, np->phy_addr, BCM8704_USER_DEV3_ADDR, | |
1540 | BCM8704_USER_ANALOG_STATUS0); | |
1541 | if (err < 0) | |
1542 | return err; | |
1543 | err = mdio_read(np, np->phy_addr, BCM8704_USER_DEV3_ADDR, | |
1544 | BCM8704_USER_ANALOG_STATUS0); | |
1545 | if (err < 0) | |
1546 | return err; | |
1547 | analog_stat0 = err; | |
1548 | ||
1549 | err = mdio_read(np, np->phy_addr, BCM8704_USER_DEV3_ADDR, | |
1550 | BCM8704_USER_TX_ALARM_STATUS); | |
1551 | if (err < 0) | |
1552 | return err; | |
1553 | err = mdio_read(np, np->phy_addr, BCM8704_USER_DEV3_ADDR, | |
1554 | BCM8704_USER_TX_ALARM_STATUS); | |
1555 | if (err < 0) | |
1556 | return err; | |
1557 | tx_alarm_status = err; | |
1558 | ||
1559 | if (analog_stat0 != 0x03fc) { | |
1560 | if ((analog_stat0 == 0x43bc) && (tx_alarm_status != 0)) { | |
1561 | pr_info(PFX "Port %u cable not connected " | |
1562 | "or bad cable.\n", np->port); | |
1563 | } else if (analog_stat0 == 0x639c) { | |
1564 | pr_info(PFX "Port %u optical module is bad " | |
1565 | "or missing.\n", np->port); | |
1566 | } | |
1567 | } | |
1568 | ||
1569 | return 0; | |
1570 | } | |
1571 | ||
a5d6ab56 MW |
1572 | static int xcvr_10g_set_lb_bcm870x(struct niu *np) |
1573 | { | |
1574 | struct niu_link_config *lp = &np->link_config; | |
1575 | int err; | |
1576 | ||
1577 | err = mdio_read(np, np->phy_addr, BCM8704_PCS_DEV_ADDR, | |
1578 | MII_BMCR); | |
1579 | if (err < 0) | |
1580 | return err; | |
1581 | ||
1582 | err &= ~BMCR_LOOPBACK; | |
1583 | ||
1584 | if (lp->loopback_mode == LOOPBACK_MAC) | |
1585 | err |= BMCR_LOOPBACK; | |
1586 | ||
1587 | err = mdio_write(np, np->phy_addr, BCM8704_PCS_DEV_ADDR, | |
1588 | MII_BMCR, err); | |
1589 | if (err) | |
1590 | return err; | |
1591 | ||
1592 | return 0; | |
1593 | } | |
1594 | ||
1595 | static int xcvr_init_10g_bcm8706(struct niu *np) | |
1596 | { | |
1597 | int err = 0; | |
1598 | u64 val; | |
1599 | ||
1600 | if ((np->flags & NIU_FLAGS_HOTPLUG_PHY) && | |
1601 | (np->flags & NIU_FLAGS_HOTPLUG_PHY_PRESENT) == 0) | |
1602 | return err; | |
1603 | ||
1604 | val = nr64_mac(XMAC_CONFIG); | |
1605 | val &= ~XMAC_CONFIG_LED_POLARITY; | |
1606 | val |= XMAC_CONFIG_FORCE_LED_ON; | |
1607 | nw64_mac(XMAC_CONFIG, val); | |
1608 | ||
1609 | val = nr64(MIF_CONFIG); | |
1610 | val |= MIF_CONFIG_INDIRECT_MODE; | |
1611 | nw64(MIF_CONFIG, val); | |
1612 | ||
1613 | err = bcm8704_reset(np); | |
1614 | if (err) | |
1615 | return err; | |
1616 | ||
1617 | err = xcvr_10g_set_lb_bcm870x(np); | |
1618 | if (err) | |
1619 | return err; | |
1620 | ||
1621 | err = bcm8706_init_user_dev3(np); | |
1622 | if (err) | |
1623 | return err; | |
1624 | ||
1625 | err = xcvr_diag_bcm870x(np); | |
1626 | if (err) | |
1627 | return err; | |
1628 | ||
1629 | return 0; | |
1630 | } | |
1631 | ||
1632 | static int xcvr_init_10g_bcm8704(struct niu *np) | |
1633 | { | |
1634 | int err; | |
1635 | ||
1636 | err = bcm8704_reset(np); | |
1637 | if (err) | |
1638 | return err; | |
1639 | ||
1640 | err = bcm8704_init_user_dev3(np); | |
1641 | if (err) | |
1642 | return err; | |
1643 | ||
1644 | err = xcvr_10g_set_lb_bcm870x(np); | |
1645 | if (err) | |
1646 | return err; | |
1647 | ||
1648 | err = xcvr_diag_bcm870x(np); | |
1649 | if (err) | |
1650 | return err; | |
1651 | ||
1652 | return 0; | |
1653 | } | |
1654 | ||
b0de8e40 ML |
1655 | static int xcvr_init_10g(struct niu *np) |
1656 | { | |
1657 | int phy_id, err; | |
1658 | u64 val; | |
1659 | ||
1660 | val = nr64_mac(XMAC_CONFIG); | |
1661 | val &= ~XMAC_CONFIG_LED_POLARITY; | |
1662 | val |= XMAC_CONFIG_FORCE_LED_ON; | |
1663 | nw64_mac(XMAC_CONFIG, val); | |
1664 | ||
1665 | /* XXX shared resource, lock parent XXX */ | |
1666 | val = nr64(MIF_CONFIG); | |
1667 | val |= MIF_CONFIG_INDIRECT_MODE; | |
1668 | nw64(MIF_CONFIG, val); | |
1669 | ||
1670 | phy_id = phy_decode(np->parent->port_phy, np->port); | |
1671 | phy_id = np->parent->phy_probe_info.phy_id[phy_id][np->port]; | |
1672 | ||
1673 | /* handle different phy types */ | |
1674 | switch (phy_id & NIU_PHY_ID_MASK) { | |
1675 | case NIU_PHY_ID_MRVL88X2011: | |
1676 | err = xcvr_init_10g_mrvl88x2011(np); | |
1677 | break; | |
1678 | ||
1679 | default: /* bcom 8704 */ | |
1680 | err = xcvr_init_10g_bcm8704(np); | |
1681 | break; | |
1682 | } | |
1683 | ||
1684 | return 0; | |
1685 | } | |
1686 | ||
a3138df9 DM |
1687 | static int mii_reset(struct niu *np) |
1688 | { | |
1689 | int limit, err; | |
1690 | ||
1691 | err = mii_write(np, np->phy_addr, MII_BMCR, BMCR_RESET); | |
1692 | if (err) | |
1693 | return err; | |
1694 | ||
1695 | limit = 1000; | |
1696 | while (--limit >= 0) { | |
1697 | udelay(500); | |
1698 | err = mii_read(np, np->phy_addr, MII_BMCR); | |
1699 | if (err < 0) | |
1700 | return err; | |
1701 | if (!(err & BMCR_RESET)) | |
1702 | break; | |
1703 | } | |
1704 | if (limit < 0) { | |
1705 | dev_err(np->device, PFX "Port %u MII would not reset, " | |
1706 | "bmcr[%04x]\n", np->port, err); | |
1707 | return -ENODEV; | |
1708 | } | |
1709 | ||
1710 | return 0; | |
1711 | } | |
1712 | ||
5fbd7e24 MW |
1713 | static int xcvr_init_1g_rgmii(struct niu *np) |
1714 | { | |
1715 | int err; | |
1716 | u64 val; | |
1717 | u16 bmcr, bmsr, estat; | |
1718 | ||
1719 | val = nr64(MIF_CONFIG); | |
1720 | val &= ~MIF_CONFIG_INDIRECT_MODE; | |
1721 | nw64(MIF_CONFIG, val); | |
1722 | ||
1723 | err = mii_reset(np); | |
1724 | if (err) | |
1725 | return err; | |
1726 | ||
1727 | err = mii_read(np, np->phy_addr, MII_BMSR); | |
1728 | if (err < 0) | |
1729 | return err; | |
1730 | bmsr = err; | |
1731 | ||
1732 | estat = 0; | |
1733 | if (bmsr & BMSR_ESTATEN) { | |
1734 | err = mii_read(np, np->phy_addr, MII_ESTATUS); | |
1735 | if (err < 0) | |
1736 | return err; | |
1737 | estat = err; | |
1738 | } | |
1739 | ||
1740 | bmcr = 0; | |
1741 | err = mii_write(np, np->phy_addr, MII_BMCR, bmcr); | |
1742 | if (err) | |
1743 | return err; | |
1744 | ||
1745 | if (bmsr & BMSR_ESTATEN) { | |
1746 | u16 ctrl1000 = 0; | |
1747 | ||
1748 | if (estat & ESTATUS_1000_TFULL) | |
1749 | ctrl1000 |= ADVERTISE_1000FULL; | |
1750 | err = mii_write(np, np->phy_addr, MII_CTRL1000, ctrl1000); | |
1751 | if (err) | |
1752 | return err; | |
1753 | } | |
1754 | ||
1755 | bmcr = (BMCR_SPEED1000 | BMCR_FULLDPLX); | |
1756 | ||
1757 | err = mii_write(np, np->phy_addr, MII_BMCR, bmcr); | |
1758 | if (err) | |
1759 | return err; | |
1760 | ||
1761 | err = mii_read(np, np->phy_addr, MII_BMCR); | |
1762 | if (err < 0) | |
1763 | return err; | |
1764 | bmcr = mii_read(np, np->phy_addr, MII_BMCR); | |
1765 | ||
1766 | err = mii_read(np, np->phy_addr, MII_BMSR); | |
1767 | if (err < 0) | |
1768 | return err; | |
1769 | ||
1770 | return 0; | |
1771 | } | |
1772 | ||
a3138df9 DM |
1773 | static int mii_init_common(struct niu *np) |
1774 | { | |
1775 | struct niu_link_config *lp = &np->link_config; | |
1776 | u16 bmcr, bmsr, adv, estat; | |
1777 | int err; | |
1778 | ||
1779 | err = mii_reset(np); | |
1780 | if (err) | |
1781 | return err; | |
1782 | ||
1783 | err = mii_read(np, np->phy_addr, MII_BMSR); | |
1784 | if (err < 0) | |
1785 | return err; | |
1786 | bmsr = err; | |
1787 | ||
1788 | estat = 0; | |
1789 | if (bmsr & BMSR_ESTATEN) { | |
1790 | err = mii_read(np, np->phy_addr, MII_ESTATUS); | |
1791 | if (err < 0) | |
1792 | return err; | |
1793 | estat = err; | |
1794 | } | |
1795 | ||
1796 | bmcr = 0; | |
1797 | err = mii_write(np, np->phy_addr, MII_BMCR, bmcr); | |
1798 | if (err) | |
1799 | return err; | |
1800 | ||
1801 | if (lp->loopback_mode == LOOPBACK_MAC) { | |
1802 | bmcr |= BMCR_LOOPBACK; | |
1803 | if (lp->active_speed == SPEED_1000) | |
1804 | bmcr |= BMCR_SPEED1000; | |
1805 | if (lp->active_duplex == DUPLEX_FULL) | |
1806 | bmcr |= BMCR_FULLDPLX; | |
1807 | } | |
1808 | ||
1809 | if (lp->loopback_mode == LOOPBACK_PHY) { | |
1810 | u16 aux; | |
1811 | ||
1812 | aux = (BCM5464R_AUX_CTL_EXT_LB | | |
1813 | BCM5464R_AUX_CTL_WRITE_1); | |
1814 | err = mii_write(np, np->phy_addr, BCM5464R_AUX_CTL, aux); | |
1815 | if (err) | |
1816 | return err; | |
1817 | } | |
1818 | ||
38bb045d CB |
1819 | if (lp->autoneg) { |
1820 | u16 ctrl1000; | |
1821 | ||
1822 | adv = ADVERTISE_CSMA | ADVERTISE_PAUSE_CAP; | |
1823 | if ((bmsr & BMSR_10HALF) && | |
1824 | (lp->advertising & ADVERTISED_10baseT_Half)) | |
1825 | adv |= ADVERTISE_10HALF; | |
1826 | if ((bmsr & BMSR_10FULL) && | |
1827 | (lp->advertising & ADVERTISED_10baseT_Full)) | |
1828 | adv |= ADVERTISE_10FULL; | |
1829 | if ((bmsr & BMSR_100HALF) && | |
1830 | (lp->advertising & ADVERTISED_100baseT_Half)) | |
1831 | adv |= ADVERTISE_100HALF; | |
1832 | if ((bmsr & BMSR_100FULL) && | |
1833 | (lp->advertising & ADVERTISED_100baseT_Full)) | |
1834 | adv |= ADVERTISE_100FULL; | |
1835 | err = mii_write(np, np->phy_addr, MII_ADVERTISE, adv); | |
a3138df9 DM |
1836 | if (err) |
1837 | return err; | |
38bb045d CB |
1838 | |
1839 | if (likely(bmsr & BMSR_ESTATEN)) { | |
1840 | ctrl1000 = 0; | |
1841 | if ((estat & ESTATUS_1000_THALF) && | |
1842 | (lp->advertising & ADVERTISED_1000baseT_Half)) | |
1843 | ctrl1000 |= ADVERTISE_1000HALF; | |
1844 | if ((estat & ESTATUS_1000_TFULL) && | |
1845 | (lp->advertising & ADVERTISED_1000baseT_Full)) | |
1846 | ctrl1000 |= ADVERTISE_1000FULL; | |
1847 | err = mii_write(np, np->phy_addr, | |
1848 | MII_CTRL1000, ctrl1000); | |
1849 | if (err) | |
1850 | return err; | |
1851 | } | |
1852 | ||
1853 | bmcr |= (BMCR_ANENABLE | BMCR_ANRESTART); | |
1854 | } else { | |
1855 | /* !lp->autoneg */ | |
1856 | int fulldpx; | |
1857 | ||
1858 | if (lp->duplex == DUPLEX_FULL) { | |
1859 | bmcr |= BMCR_FULLDPLX; | |
1860 | fulldpx = 1; | |
1861 | } else if (lp->duplex == DUPLEX_HALF) | |
1862 | fulldpx = 0; | |
1863 | else | |
1864 | return -EINVAL; | |
1865 | ||
1866 | if (lp->speed == SPEED_1000) { | |
1867 | /* if X-full requested while not supported, or | |
1868 | X-half requested while not supported... */ | |
1869 | if ((fulldpx && !(estat & ESTATUS_1000_TFULL)) || | |
1870 | (!fulldpx && !(estat & ESTATUS_1000_THALF))) | |
1871 | return -EINVAL; | |
1872 | bmcr |= BMCR_SPEED1000; | |
1873 | } else if (lp->speed == SPEED_100) { | |
1874 | if ((fulldpx && !(bmsr & BMSR_100FULL)) || | |
1875 | (!fulldpx && !(bmsr & BMSR_100HALF))) | |
1876 | return -EINVAL; | |
1877 | bmcr |= BMCR_SPEED100; | |
1878 | } else if (lp->speed == SPEED_10) { | |
1879 | if ((fulldpx && !(bmsr & BMSR_10FULL)) || | |
1880 | (!fulldpx && !(bmsr & BMSR_10HALF))) | |
1881 | return -EINVAL; | |
1882 | } else | |
1883 | return -EINVAL; | |
a3138df9 | 1884 | } |
a3138df9 DM |
1885 | |
1886 | err = mii_write(np, np->phy_addr, MII_BMCR, bmcr); | |
1887 | if (err) | |
1888 | return err; | |
1889 | ||
38bb045d | 1890 | #if 0 |
a3138df9 DM |
1891 | err = mii_read(np, np->phy_addr, MII_BMCR); |
1892 | if (err < 0) | |
1893 | return err; | |
38bb045d CB |
1894 | bmcr = err; |
1895 | ||
a3138df9 DM |
1896 | err = mii_read(np, np->phy_addr, MII_BMSR); |
1897 | if (err < 0) | |
1898 | return err; | |
38bb045d CB |
1899 | bmsr = err; |
1900 | ||
a3138df9 DM |
1901 | pr_info(PFX "Port %u after MII init bmcr[%04x] bmsr[%04x]\n", |
1902 | np->port, bmcr, bmsr); | |
1903 | #endif | |
1904 | ||
1905 | return 0; | |
1906 | } | |
1907 | ||
1908 | static int xcvr_init_1g(struct niu *np) | |
1909 | { | |
1910 | u64 val; | |
1911 | ||
1912 | /* XXX shared resource, lock parent XXX */ | |
1913 | val = nr64(MIF_CONFIG); | |
1914 | val &= ~MIF_CONFIG_INDIRECT_MODE; | |
1915 | nw64(MIF_CONFIG, val); | |
1916 | ||
1917 | return mii_init_common(np); | |
1918 | } | |
1919 | ||
1920 | static int niu_xcvr_init(struct niu *np) | |
1921 | { | |
1922 | const struct niu_phy_ops *ops = np->phy_ops; | |
1923 | int err; | |
1924 | ||
1925 | err = 0; | |
1926 | if (ops->xcvr_init) | |
1927 | err = ops->xcvr_init(np); | |
1928 | ||
1929 | return err; | |
1930 | } | |
1931 | ||
1932 | static int niu_serdes_init(struct niu *np) | |
1933 | { | |
1934 | const struct niu_phy_ops *ops = np->phy_ops; | |
1935 | int err; | |
1936 | ||
1937 | err = 0; | |
1938 | if (ops->serdes_init) | |
1939 | err = ops->serdes_init(np); | |
1940 | ||
1941 | return err; | |
1942 | } | |
1943 | ||
1944 | static void niu_init_xif(struct niu *); | |
0c3b091b | 1945 | static void niu_handle_led(struct niu *, int status); |
a3138df9 DM |
1946 | |
1947 | static int niu_link_status_common(struct niu *np, int link_up) | |
1948 | { | |
1949 | struct niu_link_config *lp = &np->link_config; | |
1950 | struct net_device *dev = np->dev; | |
1951 | unsigned long flags; | |
1952 | ||
1953 | if (!netif_carrier_ok(dev) && link_up) { | |
1954 | niuinfo(LINK, "%s: Link is up at %s, %s duplex\n", | |
1955 | dev->name, | |
1956 | (lp->active_speed == SPEED_10000 ? | |
1957 | "10Gb/sec" : | |
1958 | (lp->active_speed == SPEED_1000 ? | |
1959 | "1Gb/sec" : | |
1960 | (lp->active_speed == SPEED_100 ? | |
1961 | "100Mbit/sec" : "10Mbit/sec"))), | |
1962 | (lp->active_duplex == DUPLEX_FULL ? | |
1963 | "full" : "half")); | |
1964 | ||
1965 | spin_lock_irqsave(&np->lock, flags); | |
1966 | niu_init_xif(np); | |
0c3b091b | 1967 | niu_handle_led(np, 1); |
a3138df9 DM |
1968 | spin_unlock_irqrestore(&np->lock, flags); |
1969 | ||
1970 | netif_carrier_on(dev); | |
1971 | } else if (netif_carrier_ok(dev) && !link_up) { | |
1972 | niuwarn(LINK, "%s: Link is down\n", dev->name); | |
0c3b091b ML |
1973 | spin_lock_irqsave(&np->lock, flags); |
1974 | niu_handle_led(np, 0); | |
1975 | spin_unlock_irqrestore(&np->lock, flags); | |
a3138df9 DM |
1976 | netif_carrier_off(dev); |
1977 | } | |
1978 | ||
1979 | return 0; | |
1980 | } | |
1981 | ||
b0de8e40 | 1982 | static int link_status_10g_mrvl(struct niu *np, int *link_up_p) |
a3138df9 | 1983 | { |
b0de8e40 | 1984 | int err, link_up, pma_status, pcs_status; |
a3138df9 DM |
1985 | |
1986 | link_up = 0; | |
1987 | ||
b0de8e40 ML |
1988 | err = mdio_read(np, np->phy_addr, MRVL88X2011_USER_DEV1_ADDR, |
1989 | MRVL88X2011_10G_PMD_STATUS_2); | |
1990 | if (err < 0) | |
1991 | goto out; | |
a3138df9 | 1992 | |
b0de8e40 ML |
1993 | /* Check PMA/PMD Register: 1.0001.2 == 1 */ |
1994 | err = mdio_read(np, np->phy_addr, MRVL88X2011_USER_DEV1_ADDR, | |
1995 | MRVL88X2011_PMA_PMD_STATUS_1); | |
1996 | if (err < 0) | |
1997 | goto out; | |
1998 | ||
1999 | pma_status = ((err & MRVL88X2011_LNK_STATUS_OK) ? 1 : 0); | |
2000 | ||
2001 | /* Check PMC Register : 3.0001.2 == 1: read twice */ | |
2002 | err = mdio_read(np, np->phy_addr, MRVL88X2011_USER_DEV3_ADDR, | |
2003 | MRVL88X2011_PMA_PMD_STATUS_1); | |
2004 | if (err < 0) | |
2005 | goto out; | |
2006 | ||
2007 | err = mdio_read(np, np->phy_addr, MRVL88X2011_USER_DEV3_ADDR, | |
2008 | MRVL88X2011_PMA_PMD_STATUS_1); | |
2009 | if (err < 0) | |
2010 | goto out; | |
2011 | ||
2012 | pcs_status = ((err & MRVL88X2011_LNK_STATUS_OK) ? 1 : 0); | |
2013 | ||
2014 | /* Check XGXS Register : 4.0018.[0-3,12] */ | |
2015 | err = mdio_read(np, np->phy_addr, MRVL88X2011_USER_DEV4_ADDR, | |
2016 | MRVL88X2011_10G_XGXS_LANE_STAT); | |
2017 | if (err < 0) | |
a3138df9 DM |
2018 | goto out; |
2019 | ||
b0de8e40 ML |
2020 | if (err == (PHYXS_XGXS_LANE_STAT_ALINGED | PHYXS_XGXS_LANE_STAT_LANE3 | |
2021 | PHYXS_XGXS_LANE_STAT_LANE2 | PHYXS_XGXS_LANE_STAT_LANE1 | | |
2022 | PHYXS_XGXS_LANE_STAT_LANE0 | PHYXS_XGXS_LANE_STAT_MAGIC | | |
2023 | 0x800)) | |
2024 | link_up = (pma_status && pcs_status) ? 1 : 0; | |
2025 | ||
2026 | np->link_config.active_speed = SPEED_10000; | |
2027 | np->link_config.active_duplex = DUPLEX_FULL; | |
2028 | err = 0; | |
2029 | out: | |
2030 | mrvl88x2011_act_led(np, (link_up ? | |
2031 | MRVL88X2011_LED_CTL_PCS_ACT : | |
2032 | MRVL88X2011_LED_CTL_OFF)); | |
2033 | ||
2034 | *link_up_p = link_up; | |
2035 | return err; | |
2036 | } | |
2037 | ||
a5d6ab56 MW |
2038 | static int link_status_10g_bcm8706(struct niu *np, int *link_up_p) |
2039 | { | |
2040 | int err, link_up; | |
2041 | link_up = 0; | |
2042 | ||
2043 | err = mdio_read(np, np->phy_addr, BCM8704_PMA_PMD_DEV_ADDR, | |
2044 | BCM8704_PMD_RCV_SIGDET); | |
2045 | if (err < 0) | |
2046 | goto out; | |
2047 | if (!(err & PMD_RCV_SIGDET_GLOBAL)) { | |
2048 | err = 0; | |
2049 | goto out; | |
2050 | } | |
2051 | ||
2052 | err = mdio_read(np, np->phy_addr, BCM8704_PCS_DEV_ADDR, | |
2053 | BCM8704_PCS_10G_R_STATUS); | |
2054 | if (err < 0) | |
2055 | goto out; | |
2056 | ||
2057 | if (!(err & PCS_10G_R_STATUS_BLK_LOCK)) { | |
2058 | err = 0; | |
2059 | goto out; | |
2060 | } | |
2061 | ||
2062 | err = mdio_read(np, np->phy_addr, BCM8704_PHYXS_DEV_ADDR, | |
2063 | BCM8704_PHYXS_XGXS_LANE_STAT); | |
2064 | if (err < 0) | |
2065 | goto out; | |
2066 | if (err != (PHYXS_XGXS_LANE_STAT_ALINGED | | |
2067 | PHYXS_XGXS_LANE_STAT_MAGIC | | |
2068 | PHYXS_XGXS_LANE_STAT_PATTEST | | |
2069 | PHYXS_XGXS_LANE_STAT_LANE3 | | |
2070 | PHYXS_XGXS_LANE_STAT_LANE2 | | |
2071 | PHYXS_XGXS_LANE_STAT_LANE1 | | |
2072 | PHYXS_XGXS_LANE_STAT_LANE0)) { | |
2073 | err = 0; | |
2074 | np->link_config.active_speed = SPEED_INVALID; | |
2075 | np->link_config.active_duplex = DUPLEX_INVALID; | |
2076 | goto out; | |
2077 | } | |
2078 | ||
2079 | link_up = 1; | |
2080 | np->link_config.active_speed = SPEED_10000; | |
2081 | np->link_config.active_duplex = DUPLEX_FULL; | |
2082 | err = 0; | |
2083 | ||
2084 | out: | |
2085 | *link_up_p = link_up; | |
2086 | if (np->flags & NIU_FLAGS_HOTPLUG_PHY) | |
2087 | err = 0; | |
2088 | return err; | |
2089 | } | |
2090 | ||
b0de8e40 ML |
2091 | static int link_status_10g_bcom(struct niu *np, int *link_up_p) |
2092 | { | |
2093 | int err, link_up; | |
2094 | ||
2095 | link_up = 0; | |
2096 | ||
a3138df9 DM |
2097 | err = mdio_read(np, np->phy_addr, BCM8704_PMA_PMD_DEV_ADDR, |
2098 | BCM8704_PMD_RCV_SIGDET); | |
2099 | if (err < 0) | |
2100 | goto out; | |
2101 | if (!(err & PMD_RCV_SIGDET_GLOBAL)) { | |
2102 | err = 0; | |
2103 | goto out; | |
2104 | } | |
2105 | ||
2106 | err = mdio_read(np, np->phy_addr, BCM8704_PCS_DEV_ADDR, | |
2107 | BCM8704_PCS_10G_R_STATUS); | |
2108 | if (err < 0) | |
2109 | goto out; | |
2110 | if (!(err & PCS_10G_R_STATUS_BLK_LOCK)) { | |
2111 | err = 0; | |
2112 | goto out; | |
2113 | } | |
2114 | ||
2115 | err = mdio_read(np, np->phy_addr, BCM8704_PHYXS_DEV_ADDR, | |
2116 | BCM8704_PHYXS_XGXS_LANE_STAT); | |
2117 | if (err < 0) | |
2118 | goto out; | |
2119 | ||
2120 | if (err != (PHYXS_XGXS_LANE_STAT_ALINGED | | |
2121 | PHYXS_XGXS_LANE_STAT_MAGIC | | |
2122 | PHYXS_XGXS_LANE_STAT_LANE3 | | |
2123 | PHYXS_XGXS_LANE_STAT_LANE2 | | |
2124 | PHYXS_XGXS_LANE_STAT_LANE1 | | |
2125 | PHYXS_XGXS_LANE_STAT_LANE0)) { | |
2126 | err = 0; | |
2127 | goto out; | |
2128 | } | |
2129 | ||
2130 | link_up = 1; | |
2131 | np->link_config.active_speed = SPEED_10000; | |
2132 | np->link_config.active_duplex = DUPLEX_FULL; | |
2133 | err = 0; | |
2134 | ||
2135 | out: | |
b0de8e40 ML |
2136 | *link_up_p = link_up; |
2137 | return err; | |
2138 | } | |
2139 | ||
2140 | static int link_status_10g(struct niu *np, int *link_up_p) | |
2141 | { | |
2142 | unsigned long flags; | |
2143 | int err = -EINVAL; | |
2144 | ||
2145 | spin_lock_irqsave(&np->lock, flags); | |
2146 | ||
2147 | if (np->link_config.loopback_mode == LOOPBACK_DISABLED) { | |
2148 | int phy_id; | |
2149 | ||
2150 | phy_id = phy_decode(np->parent->port_phy, np->port); | |
2151 | phy_id = np->parent->phy_probe_info.phy_id[phy_id][np->port]; | |
2152 | ||
2153 | /* handle different phy types */ | |
2154 | switch (phy_id & NIU_PHY_ID_MASK) { | |
2155 | case NIU_PHY_ID_MRVL88X2011: | |
2156 | err = link_status_10g_mrvl(np, link_up_p); | |
2157 | break; | |
2158 | ||
2159 | default: /* bcom 8704 */ | |
2160 | err = link_status_10g_bcom(np, link_up_p); | |
2161 | break; | |
2162 | } | |
2163 | } | |
2164 | ||
a3138df9 DM |
2165 | spin_unlock_irqrestore(&np->lock, flags); |
2166 | ||
a3138df9 DM |
2167 | return err; |
2168 | } | |
2169 | ||
a5d6ab56 MW |
2170 | static int niu_10g_phy_present(struct niu *np) |
2171 | { | |
2172 | u64 sig, mask, val; | |
2173 | ||
2174 | sig = nr64(ESR_INT_SIGNALS); | |
2175 | switch (np->port) { | |
2176 | case 0: | |
2177 | mask = ESR_INT_SIGNALS_P0_BITS; | |
2178 | val = (ESR_INT_SRDY0_P0 | | |
2179 | ESR_INT_DET0_P0 | | |
2180 | ESR_INT_XSRDY_P0 | | |
2181 | ESR_INT_XDP_P0_CH3 | | |
2182 | ESR_INT_XDP_P0_CH2 | | |
2183 | ESR_INT_XDP_P0_CH1 | | |
2184 | ESR_INT_XDP_P0_CH0); | |
2185 | break; | |
2186 | ||
2187 | case 1: | |
2188 | mask = ESR_INT_SIGNALS_P1_BITS; | |
2189 | val = (ESR_INT_SRDY0_P1 | | |
2190 | ESR_INT_DET0_P1 | | |
2191 | ESR_INT_XSRDY_P1 | | |
2192 | ESR_INT_XDP_P1_CH3 | | |
2193 | ESR_INT_XDP_P1_CH2 | | |
2194 | ESR_INT_XDP_P1_CH1 | | |
2195 | ESR_INT_XDP_P1_CH0); | |
2196 | break; | |
2197 | ||
2198 | default: | |
2199 | return 0; | |
2200 | } | |
2201 | ||
2202 | if ((sig & mask) != val) | |
2203 | return 0; | |
2204 | return 1; | |
2205 | } | |
2206 | ||
2207 | static int link_status_10g_hotplug(struct niu *np, int *link_up_p) | |
2208 | { | |
2209 | unsigned long flags; | |
2210 | int err = 0; | |
2211 | int phy_present; | |
2212 | int phy_present_prev; | |
2213 | ||
2214 | spin_lock_irqsave(&np->lock, flags); | |
2215 | ||
2216 | if (np->link_config.loopback_mode == LOOPBACK_DISABLED) { | |
2217 | phy_present_prev = (np->flags & NIU_FLAGS_HOTPLUG_PHY_PRESENT) ? | |
2218 | 1 : 0; | |
2219 | phy_present = niu_10g_phy_present(np); | |
2220 | if (phy_present != phy_present_prev) { | |
2221 | /* state change */ | |
2222 | if (phy_present) { | |
2223 | np->flags |= NIU_FLAGS_HOTPLUG_PHY_PRESENT; | |
2224 | if (np->phy_ops->xcvr_init) | |
2225 | err = np->phy_ops->xcvr_init(np); | |
2226 | if (err) { | |
2227 | /* debounce */ | |
2228 | np->flags &= ~NIU_FLAGS_HOTPLUG_PHY_PRESENT; | |
2229 | } | |
2230 | } else { | |
2231 | np->flags &= ~NIU_FLAGS_HOTPLUG_PHY_PRESENT; | |
2232 | *link_up_p = 0; | |
2233 | niuwarn(LINK, "%s: Hotplug PHY Removed\n", | |
2234 | np->dev->name); | |
2235 | } | |
2236 | } | |
2237 | if (np->flags & NIU_FLAGS_HOTPLUG_PHY_PRESENT) | |
2238 | err = link_status_10g_bcm8706(np, link_up_p); | |
2239 | } | |
2240 | ||
2241 | spin_unlock_irqrestore(&np->lock, flags); | |
2242 | ||
2243 | return err; | |
2244 | } | |
2245 | ||
a3138df9 DM |
2246 | static int niu_link_status(struct niu *np, int *link_up_p) |
2247 | { | |
2248 | const struct niu_phy_ops *ops = np->phy_ops; | |
2249 | int err; | |
2250 | ||
2251 | err = 0; | |
2252 | if (ops->link_status) | |
2253 | err = ops->link_status(np, link_up_p); | |
2254 | ||
2255 | return err; | |
2256 | } | |
2257 | ||
2258 | static void niu_timer(unsigned long __opaque) | |
2259 | { | |
2260 | struct niu *np = (struct niu *) __opaque; | |
2261 | unsigned long off; | |
2262 | int err, link_up; | |
2263 | ||
2264 | err = niu_link_status(np, &link_up); | |
2265 | if (!err) | |
2266 | niu_link_status_common(np, link_up); | |
2267 | ||
2268 | if (netif_carrier_ok(np->dev)) | |
2269 | off = 5 * HZ; | |
2270 | else | |
2271 | off = 1 * HZ; | |
2272 | np->timer.expires = jiffies + off; | |
2273 | ||
2274 | add_timer(&np->timer); | |
2275 | } | |
2276 | ||
5fbd7e24 MW |
2277 | static const struct niu_phy_ops phy_ops_10g_serdes = { |
2278 | .serdes_init = serdes_init_10g_serdes, | |
2279 | .link_status = link_status_10g_serdes, | |
2280 | }; | |
2281 | ||
e3e081e1 SB |
2282 | static const struct niu_phy_ops phy_ops_10g_serdes_niu = { |
2283 | .serdes_init = serdes_init_niu_10g_serdes, | |
2284 | .link_status = link_status_10g_serdes, | |
2285 | }; | |
2286 | ||
2287 | static const struct niu_phy_ops phy_ops_1g_serdes_niu = { | |
2288 | .serdes_init = serdes_init_niu_1g_serdes, | |
2289 | .link_status = link_status_1g_serdes, | |
2290 | }; | |
2291 | ||
5fbd7e24 MW |
2292 | static const struct niu_phy_ops phy_ops_1g_rgmii = { |
2293 | .xcvr_init = xcvr_init_1g_rgmii, | |
2294 | .link_status = link_status_1g_rgmii, | |
2295 | }; | |
2296 | ||
a3138df9 | 2297 | static const struct niu_phy_ops phy_ops_10g_fiber_niu = { |
e3e081e1 | 2298 | .serdes_init = serdes_init_niu_10g_fiber, |
a3138df9 DM |
2299 | .xcvr_init = xcvr_init_10g, |
2300 | .link_status = link_status_10g, | |
2301 | }; | |
2302 | ||
2303 | static const struct niu_phy_ops phy_ops_10g_fiber = { | |
2304 | .serdes_init = serdes_init_10g, | |
2305 | .xcvr_init = xcvr_init_10g, | |
2306 | .link_status = link_status_10g, | |
2307 | }; | |
2308 | ||
a5d6ab56 MW |
2309 | static const struct niu_phy_ops phy_ops_10g_fiber_hotplug = { |
2310 | .serdes_init = serdes_init_10g, | |
2311 | .xcvr_init = xcvr_init_10g_bcm8706, | |
2312 | .link_status = link_status_10g_hotplug, | |
2313 | }; | |
2314 | ||
a3138df9 DM |
2315 | static const struct niu_phy_ops phy_ops_10g_copper = { |
2316 | .serdes_init = serdes_init_10g, | |
2317 | .link_status = link_status_10g, /* XXX */ | |
2318 | }; | |
2319 | ||
2320 | static const struct niu_phy_ops phy_ops_1g_fiber = { | |
2321 | .serdes_init = serdes_init_1g, | |
2322 | .xcvr_init = xcvr_init_1g, | |
2323 | .link_status = link_status_1g, | |
2324 | }; | |
2325 | ||
2326 | static const struct niu_phy_ops phy_ops_1g_copper = { | |
2327 | .xcvr_init = xcvr_init_1g, | |
2328 | .link_status = link_status_1g, | |
2329 | }; | |
2330 | ||
2331 | struct niu_phy_template { | |
2332 | const struct niu_phy_ops *ops; | |
2333 | u32 phy_addr_base; | |
2334 | }; | |
2335 | ||
e3e081e1 | 2336 | static const struct niu_phy_template phy_template_niu_10g_fiber = { |
a3138df9 DM |
2337 | .ops = &phy_ops_10g_fiber_niu, |
2338 | .phy_addr_base = 16, | |
2339 | }; | |
2340 | ||
e3e081e1 SB |
2341 | static const struct niu_phy_template phy_template_niu_10g_serdes = { |
2342 | .ops = &phy_ops_10g_serdes_niu, | |
2343 | .phy_addr_base = 0, | |
2344 | }; | |
2345 | ||
2346 | static const struct niu_phy_template phy_template_niu_1g_serdes = { | |
2347 | .ops = &phy_ops_1g_serdes_niu, | |
2348 | .phy_addr_base = 0, | |
2349 | }; | |
2350 | ||
a3138df9 DM |
2351 | static const struct niu_phy_template phy_template_10g_fiber = { |
2352 | .ops = &phy_ops_10g_fiber, | |
2353 | .phy_addr_base = 8, | |
2354 | }; | |
2355 | ||
a5d6ab56 MW |
2356 | static const struct niu_phy_template phy_template_10g_fiber_hotplug = { |
2357 | .ops = &phy_ops_10g_fiber_hotplug, | |
2358 | .phy_addr_base = 8, | |
2359 | }; | |
2360 | ||
a3138df9 DM |
2361 | static const struct niu_phy_template phy_template_10g_copper = { |
2362 | .ops = &phy_ops_10g_copper, | |
2363 | .phy_addr_base = 10, | |
2364 | }; | |
2365 | ||
2366 | static const struct niu_phy_template phy_template_1g_fiber = { | |
2367 | .ops = &phy_ops_1g_fiber, | |
2368 | .phy_addr_base = 0, | |
2369 | }; | |
2370 | ||
2371 | static const struct niu_phy_template phy_template_1g_copper = { | |
2372 | .ops = &phy_ops_1g_copper, | |
2373 | .phy_addr_base = 0, | |
2374 | }; | |
2375 | ||
5fbd7e24 MW |
2376 | static const struct niu_phy_template phy_template_1g_rgmii = { |
2377 | .ops = &phy_ops_1g_rgmii, | |
2378 | .phy_addr_base = 0, | |
2379 | }; | |
2380 | ||
2381 | static const struct niu_phy_template phy_template_10g_serdes = { | |
2382 | .ops = &phy_ops_10g_serdes, | |
2383 | .phy_addr_base = 0, | |
2384 | }; | |
2385 | ||
2386 | static int niu_atca_port_num[4] = { | |
2387 | 0, 0, 11, 10 | |
2388 | }; | |
2389 | ||
2390 | static int serdes_init_10g_serdes(struct niu *np) | |
2391 | { | |
2392 | struct niu_link_config *lp = &np->link_config; | |
2393 | unsigned long ctrl_reg, test_cfg_reg, pll_cfg, i; | |
2394 | u64 ctrl_val, test_cfg_val, sig, mask, val; | |
5fbd7e24 MW |
2395 | u64 reset_val; |
2396 | ||
2397 | switch (np->port) { | |
2398 | case 0: | |
2399 | reset_val = ENET_SERDES_RESET_0; | |
2400 | ctrl_reg = ENET_SERDES_0_CTRL_CFG; | |
2401 | test_cfg_reg = ENET_SERDES_0_TEST_CFG; | |
2402 | pll_cfg = ENET_SERDES_0_PLL_CFG; | |
2403 | break; | |
2404 | case 1: | |
2405 | reset_val = ENET_SERDES_RESET_1; | |
2406 | ctrl_reg = ENET_SERDES_1_CTRL_CFG; | |
2407 | test_cfg_reg = ENET_SERDES_1_TEST_CFG; | |
2408 | pll_cfg = ENET_SERDES_1_PLL_CFG; | |
2409 | break; | |
2410 | ||
2411 | default: | |
2412 | return -EINVAL; | |
2413 | } | |
2414 | ctrl_val = (ENET_SERDES_CTRL_SDET_0 | | |
2415 | ENET_SERDES_CTRL_SDET_1 | | |
2416 | ENET_SERDES_CTRL_SDET_2 | | |
2417 | ENET_SERDES_CTRL_SDET_3 | | |
2418 | (0x5 << ENET_SERDES_CTRL_EMPH_0_SHIFT) | | |
2419 | (0x5 << ENET_SERDES_CTRL_EMPH_1_SHIFT) | | |
2420 | (0x5 << ENET_SERDES_CTRL_EMPH_2_SHIFT) | | |
2421 | (0x5 << ENET_SERDES_CTRL_EMPH_3_SHIFT) | | |
2422 | (0x1 << ENET_SERDES_CTRL_LADJ_0_SHIFT) | | |
2423 | (0x1 << ENET_SERDES_CTRL_LADJ_1_SHIFT) | | |
2424 | (0x1 << ENET_SERDES_CTRL_LADJ_2_SHIFT) | | |
2425 | (0x1 << ENET_SERDES_CTRL_LADJ_3_SHIFT)); | |
2426 | test_cfg_val = 0; | |
2427 | ||
2428 | if (lp->loopback_mode == LOOPBACK_PHY) { | |
2429 | test_cfg_val |= ((ENET_TEST_MD_PAD_LOOPBACK << | |
2430 | ENET_SERDES_TEST_MD_0_SHIFT) | | |
2431 | (ENET_TEST_MD_PAD_LOOPBACK << | |
2432 | ENET_SERDES_TEST_MD_1_SHIFT) | | |
2433 | (ENET_TEST_MD_PAD_LOOPBACK << | |
2434 | ENET_SERDES_TEST_MD_2_SHIFT) | | |
2435 | (ENET_TEST_MD_PAD_LOOPBACK << | |
2436 | ENET_SERDES_TEST_MD_3_SHIFT)); | |
2437 | } | |
2438 | ||
2439 | esr_reset(np); | |
2440 | nw64(pll_cfg, ENET_SERDES_PLL_FBDIV2); | |
2441 | nw64(ctrl_reg, ctrl_val); | |
2442 | nw64(test_cfg_reg, test_cfg_val); | |
2443 | ||
2444 | /* Initialize all 4 lanes of the SERDES. */ | |
2445 | for (i = 0; i < 4; i++) { | |
2446 | u32 rxtx_ctrl, glue0; | |
7c34eb89 | 2447 | int err; |
5fbd7e24 MW |
2448 | |
2449 | err = esr_read_rxtx_ctrl(np, i, &rxtx_ctrl); | |
2450 | if (err) | |
2451 | return err; | |
2452 | err = esr_read_glue0(np, i, &glue0); | |
2453 | if (err) | |
2454 | return err; | |
2455 | ||
2456 | rxtx_ctrl &= ~(ESR_RXTX_CTRL_VMUXLO); | |
2457 | rxtx_ctrl |= (ESR_RXTX_CTRL_ENSTRETCH | | |
2458 | (2 << ESR_RXTX_CTRL_VMUXLO_SHIFT)); | |
2459 | ||
2460 | glue0 &= ~(ESR_GLUE_CTRL0_SRATE | | |
2461 | ESR_GLUE_CTRL0_THCNT | | |
2462 | ESR_GLUE_CTRL0_BLTIME); | |
2463 | glue0 |= (ESR_GLUE_CTRL0_RXLOSENAB | | |
2464 | (0xf << ESR_GLUE_CTRL0_SRATE_SHIFT) | | |
2465 | (0xff << ESR_GLUE_CTRL0_THCNT_SHIFT) | | |
2466 | (BLTIME_300_CYCLES << | |
2467 | ESR_GLUE_CTRL0_BLTIME_SHIFT)); | |
2468 | ||
2469 | err = esr_write_rxtx_ctrl(np, i, rxtx_ctrl); | |
2470 | if (err) | |
2471 | return err; | |
2472 | err = esr_write_glue0(np, i, glue0); | |
2473 | if (err) | |
2474 | return err; | |
2475 | } | |
2476 | ||
2477 | ||
2478 | sig = nr64(ESR_INT_SIGNALS); | |
2479 | switch (np->port) { | |
2480 | case 0: | |
2481 | mask = ESR_INT_SIGNALS_P0_BITS; | |
2482 | val = (ESR_INT_SRDY0_P0 | | |
2483 | ESR_INT_DET0_P0 | | |
2484 | ESR_INT_XSRDY_P0 | | |
2485 | ESR_INT_XDP_P0_CH3 | | |
2486 | ESR_INT_XDP_P0_CH2 | | |
2487 | ESR_INT_XDP_P0_CH1 | | |
2488 | ESR_INT_XDP_P0_CH0); | |
2489 | break; | |
2490 | ||
2491 | case 1: | |
2492 | mask = ESR_INT_SIGNALS_P1_BITS; | |
2493 | val = (ESR_INT_SRDY0_P1 | | |
2494 | ESR_INT_DET0_P1 | | |
2495 | ESR_INT_XSRDY_P1 | | |
2496 | ESR_INT_XDP_P1_CH3 | | |
2497 | ESR_INT_XDP_P1_CH2 | | |
2498 | ESR_INT_XDP_P1_CH1 | | |
2499 | ESR_INT_XDP_P1_CH0); | |
2500 | break; | |
2501 | ||
2502 | default: | |
2503 | return -EINVAL; | |
2504 | } | |
2505 | ||
2506 | if ((sig & mask) != val) { | |
2507 | int err; | |
2508 | err = serdes_init_1g_serdes(np); | |
2509 | if (!err) { | |
2510 | np->flags &= ~NIU_FLAGS_10G; | |
2511 | np->mac_xcvr = MAC_XCVR_PCS; | |
2512 | } else { | |
2513 | dev_err(np->device, PFX "Port %u 10G/1G SERDES Link Failed \n", | |
2514 | np->port); | |
2515 | return -ENODEV; | |
2516 | } | |
2517 | } | |
2518 | ||
2519 | return 0; | |
2520 | } | |
2521 | ||
a3138df9 DM |
2522 | static int niu_determine_phy_disposition(struct niu *np) |
2523 | { | |
2524 | struct niu_parent *parent = np->parent; | |
2525 | u8 plat_type = parent->plat_type; | |
2526 | const struct niu_phy_template *tp; | |
2527 | u32 phy_addr_off = 0; | |
2528 | ||
2529 | if (plat_type == PLAT_TYPE_NIU) { | |
e3e081e1 SB |
2530 | switch (np->flags & |
2531 | (NIU_FLAGS_10G | | |
2532 | NIU_FLAGS_FIBER | | |
2533 | NIU_FLAGS_XCVR_SERDES)) { | |
2534 | case NIU_FLAGS_10G | NIU_FLAGS_XCVR_SERDES: | |
2535 | /* 10G Serdes */ | |
2536 | tp = &phy_template_niu_10g_serdes; | |
2537 | break; | |
2538 | case NIU_FLAGS_XCVR_SERDES: | |
2539 | /* 1G Serdes */ | |
2540 | tp = &phy_template_niu_1g_serdes; | |
2541 | break; | |
2542 | case NIU_FLAGS_10G | NIU_FLAGS_FIBER: | |
2543 | /* 10G Fiber */ | |
2544 | default: | |
2545 | tp = &phy_template_niu_10g_fiber; | |
2546 | phy_addr_off += np->port; | |
2547 | break; | |
2548 | } | |
a3138df9 | 2549 | } else { |
5fbd7e24 MW |
2550 | switch (np->flags & |
2551 | (NIU_FLAGS_10G | | |
2552 | NIU_FLAGS_FIBER | | |
2553 | NIU_FLAGS_XCVR_SERDES)) { | |
a3138df9 DM |
2554 | case 0: |
2555 | /* 1G copper */ | |
2556 | tp = &phy_template_1g_copper; | |
2557 | if (plat_type == PLAT_TYPE_VF_P0) | |
2558 | phy_addr_off = 10; | |
2559 | else if (plat_type == PLAT_TYPE_VF_P1) | |
2560 | phy_addr_off = 26; | |
2561 | ||
2562 | phy_addr_off += (np->port ^ 0x3); | |
2563 | break; | |
2564 | ||
2565 | case NIU_FLAGS_10G: | |
2566 | /* 10G copper */ | |
e0d8496a | 2567 | tp = &phy_template_10g_copper; |
a3138df9 DM |
2568 | break; |
2569 | ||
2570 | case NIU_FLAGS_FIBER: | |
2571 | /* 1G fiber */ | |
2572 | tp = &phy_template_1g_fiber; | |
2573 | break; | |
2574 | ||
2575 | case NIU_FLAGS_10G | NIU_FLAGS_FIBER: | |
2576 | /* 10G fiber */ | |
2577 | tp = &phy_template_10g_fiber; | |
2578 | if (plat_type == PLAT_TYPE_VF_P0 || | |
2579 | plat_type == PLAT_TYPE_VF_P1) | |
2580 | phy_addr_off = 8; | |
2581 | phy_addr_off += np->port; | |
a5d6ab56 MW |
2582 | if (np->flags & NIU_FLAGS_HOTPLUG_PHY) { |
2583 | tp = &phy_template_10g_fiber_hotplug; | |
2584 | if (np->port == 0) | |
2585 | phy_addr_off = 8; | |
2586 | if (np->port == 1) | |
2587 | phy_addr_off = 12; | |
2588 | } | |
a3138df9 DM |
2589 | break; |
2590 | ||
5fbd7e24 MW |
2591 | case NIU_FLAGS_10G | NIU_FLAGS_XCVR_SERDES: |
2592 | case NIU_FLAGS_XCVR_SERDES | NIU_FLAGS_FIBER: | |
2593 | case NIU_FLAGS_XCVR_SERDES: | |
2594 | switch(np->port) { | |
2595 | case 0: | |
2596 | case 1: | |
2597 | tp = &phy_template_10g_serdes; | |
2598 | break; | |
2599 | case 2: | |
2600 | case 3: | |
2601 | tp = &phy_template_1g_rgmii; | |
2602 | break; | |
2603 | default: | |
2604 | return -EINVAL; | |
2605 | break; | |
2606 | } | |
2607 | phy_addr_off = niu_atca_port_num[np->port]; | |
2608 | break; | |
2609 | ||
a3138df9 DM |
2610 | default: |
2611 | return -EINVAL; | |
2612 | } | |
2613 | } | |
2614 | ||
2615 | np->phy_ops = tp->ops; | |
2616 | np->phy_addr = tp->phy_addr_base + phy_addr_off; | |
2617 | ||
2618 | return 0; | |
2619 | } | |
2620 | ||
2621 | static int niu_init_link(struct niu *np) | |
2622 | { | |
2623 | struct niu_parent *parent = np->parent; | |
2624 | int err, ignore; | |
2625 | ||
2626 | if (parent->plat_type == PLAT_TYPE_NIU) { | |
2627 | err = niu_xcvr_init(np); | |
2628 | if (err) | |
2629 | return err; | |
2630 | msleep(200); | |
2631 | } | |
2632 | err = niu_serdes_init(np); | |
2633 | if (err) | |
2634 | return err; | |
2635 | msleep(200); | |
2636 | err = niu_xcvr_init(np); | |
2637 | if (!err) | |
2638 | niu_link_status(np, &ignore); | |
2639 | return 0; | |
2640 | } | |
2641 | ||
2642 | static void niu_set_primary_mac(struct niu *np, unsigned char *addr) | |
2643 | { | |
2644 | u16 reg0 = addr[4] << 8 | addr[5]; | |
2645 | u16 reg1 = addr[2] << 8 | addr[3]; | |
2646 | u16 reg2 = addr[0] << 8 | addr[1]; | |
2647 | ||
2648 | if (np->flags & NIU_FLAGS_XMAC) { | |
2649 | nw64_mac(XMAC_ADDR0, reg0); | |
2650 | nw64_mac(XMAC_ADDR1, reg1); | |
2651 | nw64_mac(XMAC_ADDR2, reg2); | |
2652 | } else { | |
2653 | nw64_mac(BMAC_ADDR0, reg0); | |
2654 | nw64_mac(BMAC_ADDR1, reg1); | |
2655 | nw64_mac(BMAC_ADDR2, reg2); | |
2656 | } | |
2657 | } | |
2658 | ||
2659 | static int niu_num_alt_addr(struct niu *np) | |
2660 | { | |
2661 | if (np->flags & NIU_FLAGS_XMAC) | |
2662 | return XMAC_NUM_ALT_ADDR; | |
2663 | else | |
2664 | return BMAC_NUM_ALT_ADDR; | |
2665 | } | |
2666 | ||
2667 | static int niu_set_alt_mac(struct niu *np, int index, unsigned char *addr) | |
2668 | { | |
2669 | u16 reg0 = addr[4] << 8 | addr[5]; | |
2670 | u16 reg1 = addr[2] << 8 | addr[3]; | |
2671 | u16 reg2 = addr[0] << 8 | addr[1]; | |
2672 | ||
2673 | if (index >= niu_num_alt_addr(np)) | |
2674 | return -EINVAL; | |
2675 | ||
2676 | if (np->flags & NIU_FLAGS_XMAC) { | |
2677 | nw64_mac(XMAC_ALT_ADDR0(index), reg0); | |
2678 | nw64_mac(XMAC_ALT_ADDR1(index), reg1); | |
2679 | nw64_mac(XMAC_ALT_ADDR2(index), reg2); | |
2680 | } else { | |
2681 | nw64_mac(BMAC_ALT_ADDR0(index), reg0); | |
2682 | nw64_mac(BMAC_ALT_ADDR1(index), reg1); | |
2683 | nw64_mac(BMAC_ALT_ADDR2(index), reg2); | |
2684 | } | |
2685 | ||
2686 | return 0; | |
2687 | } | |
2688 | ||
2689 | static int niu_enable_alt_mac(struct niu *np, int index, int on) | |
2690 | { | |
2691 | unsigned long reg; | |
2692 | u64 val, mask; | |
2693 | ||
2694 | if (index >= niu_num_alt_addr(np)) | |
2695 | return -EINVAL; | |
2696 | ||
fa907895 | 2697 | if (np->flags & NIU_FLAGS_XMAC) { |
a3138df9 | 2698 | reg = XMAC_ADDR_CMPEN; |
fa907895 MW |
2699 | mask = 1 << index; |
2700 | } else { | |
a3138df9 | 2701 | reg = BMAC_ADDR_CMPEN; |
fa907895 MW |
2702 | mask = 1 << (index + 1); |
2703 | } | |
a3138df9 DM |
2704 | |
2705 | val = nr64_mac(reg); | |
2706 | if (on) | |
2707 | val |= mask; | |
2708 | else | |
2709 | val &= ~mask; | |
2710 | nw64_mac(reg, val); | |
2711 | ||
2712 | return 0; | |
2713 | } | |
2714 | ||
2715 | static void __set_rdc_table_num_hw(struct niu *np, unsigned long reg, | |
2716 | int num, int mac_pref) | |
2717 | { | |
2718 | u64 val = nr64_mac(reg); | |
2719 | val &= ~(HOST_INFO_MACRDCTBLN | HOST_INFO_MPR); | |
2720 | val |= num; | |
2721 | if (mac_pref) | |
2722 | val |= HOST_INFO_MPR; | |
2723 | nw64_mac(reg, val); | |
2724 | } | |
2725 | ||
2726 | static int __set_rdc_table_num(struct niu *np, | |
2727 | int xmac_index, int bmac_index, | |
2728 | int rdc_table_num, int mac_pref) | |
2729 | { | |
2730 | unsigned long reg; | |
2731 | ||
2732 | if (rdc_table_num & ~HOST_INFO_MACRDCTBLN) | |
2733 | return -EINVAL; | |
2734 | if (np->flags & NIU_FLAGS_XMAC) | |
2735 | reg = XMAC_HOST_INFO(xmac_index); | |
2736 | else | |
2737 | reg = BMAC_HOST_INFO(bmac_index); | |
2738 | __set_rdc_table_num_hw(np, reg, rdc_table_num, mac_pref); | |
2739 | return 0; | |
2740 | } | |
2741 | ||
2742 | static int niu_set_primary_mac_rdc_table(struct niu *np, int table_num, | |
2743 | int mac_pref) | |
2744 | { | |
2745 | return __set_rdc_table_num(np, 17, 0, table_num, mac_pref); | |
2746 | } | |
2747 | ||
2748 | static int niu_set_multicast_mac_rdc_table(struct niu *np, int table_num, | |
2749 | int mac_pref) | |
2750 | { | |
2751 | return __set_rdc_table_num(np, 16, 8, table_num, mac_pref); | |
2752 | } | |
2753 | ||
2754 | static int niu_set_alt_mac_rdc_table(struct niu *np, int idx, | |
2755 | int table_num, int mac_pref) | |
2756 | { | |
2757 | if (idx >= niu_num_alt_addr(np)) | |
2758 | return -EINVAL; | |
2759 | return __set_rdc_table_num(np, idx, idx + 1, table_num, mac_pref); | |
2760 | } | |
2761 | ||
2762 | static u64 vlan_entry_set_parity(u64 reg_val) | |
2763 | { | |
2764 | u64 port01_mask; | |
2765 | u64 port23_mask; | |
2766 | ||
2767 | port01_mask = 0x00ff; | |
2768 | port23_mask = 0xff00; | |
2769 | ||
2770 | if (hweight64(reg_val & port01_mask) & 1) | |
2771 | reg_val |= ENET_VLAN_TBL_PARITY0; | |
2772 | else | |
2773 | reg_val &= ~ENET_VLAN_TBL_PARITY0; | |
2774 | ||
2775 | if (hweight64(reg_val & port23_mask) & 1) | |
2776 | reg_val |= ENET_VLAN_TBL_PARITY1; | |
2777 | else | |
2778 | reg_val &= ~ENET_VLAN_TBL_PARITY1; | |
2779 | ||
2780 | return reg_val; | |
2781 | } | |
2782 | ||
2783 | static void vlan_tbl_write(struct niu *np, unsigned long index, | |
2784 | int port, int vpr, int rdc_table) | |
2785 | { | |
2786 | u64 reg_val = nr64(ENET_VLAN_TBL(index)); | |
2787 | ||
2788 | reg_val &= ~((ENET_VLAN_TBL_VPR | | |
2789 | ENET_VLAN_TBL_VLANRDCTBLN) << | |
2790 | ENET_VLAN_TBL_SHIFT(port)); | |
2791 | if (vpr) | |
2792 | reg_val |= (ENET_VLAN_TBL_VPR << | |
2793 | ENET_VLAN_TBL_SHIFT(port)); | |
2794 | reg_val |= (rdc_table << ENET_VLAN_TBL_SHIFT(port)); | |
2795 | ||
2796 | reg_val = vlan_entry_set_parity(reg_val); | |
2797 | ||
2798 | nw64(ENET_VLAN_TBL(index), reg_val); | |
2799 | } | |
2800 | ||
2801 | static void vlan_tbl_clear(struct niu *np) | |
2802 | { | |
2803 | int i; | |
2804 | ||
2805 | for (i = 0; i < ENET_VLAN_TBL_NUM_ENTRIES; i++) | |
2806 | nw64(ENET_VLAN_TBL(i), 0); | |
2807 | } | |
2808 | ||
2809 | static int tcam_wait_bit(struct niu *np, u64 bit) | |
2810 | { | |
2811 | int limit = 1000; | |
2812 | ||
2813 | while (--limit > 0) { | |
2814 | if (nr64(TCAM_CTL) & bit) | |
2815 | break; | |
2816 | udelay(1); | |
2817 | } | |
2818 | if (limit < 0) | |
2819 | return -ENODEV; | |
2820 | ||
2821 | return 0; | |
2822 | } | |
2823 | ||
2824 | static int tcam_flush(struct niu *np, int index) | |
2825 | { | |
2826 | nw64(TCAM_KEY_0, 0x00); | |
2827 | nw64(TCAM_KEY_MASK_0, 0xff); | |
2828 | nw64(TCAM_CTL, (TCAM_CTL_RWC_TCAM_WRITE | index)); | |
2829 | ||
2830 | return tcam_wait_bit(np, TCAM_CTL_STAT); | |
2831 | } | |
2832 | ||
2833 | #if 0 | |
2834 | static int tcam_read(struct niu *np, int index, | |
2835 | u64 *key, u64 *mask) | |
2836 | { | |
2837 | int err; | |
2838 | ||
2839 | nw64(TCAM_CTL, (TCAM_CTL_RWC_TCAM_READ | index)); | |
2840 | err = tcam_wait_bit(np, TCAM_CTL_STAT); | |
2841 | if (!err) { | |
2842 | key[0] = nr64(TCAM_KEY_0); | |
2843 | key[1] = nr64(TCAM_KEY_1); | |
2844 | key[2] = nr64(TCAM_KEY_2); | |
2845 | key[3] = nr64(TCAM_KEY_3); | |
2846 | mask[0] = nr64(TCAM_KEY_MASK_0); | |
2847 | mask[1] = nr64(TCAM_KEY_MASK_1); | |
2848 | mask[2] = nr64(TCAM_KEY_MASK_2); | |
2849 | mask[3] = nr64(TCAM_KEY_MASK_3); | |
2850 | } | |
2851 | return err; | |
2852 | } | |
2853 | #endif | |
2854 | ||
2855 | static int tcam_write(struct niu *np, int index, | |
2856 | u64 *key, u64 *mask) | |
2857 | { | |
2858 | nw64(TCAM_KEY_0, key[0]); | |
2859 | nw64(TCAM_KEY_1, key[1]); | |
2860 | nw64(TCAM_KEY_2, key[2]); | |
2861 | nw64(TCAM_KEY_3, key[3]); | |
2862 | nw64(TCAM_KEY_MASK_0, mask[0]); | |
2863 | nw64(TCAM_KEY_MASK_1, mask[1]); | |
2864 | nw64(TCAM_KEY_MASK_2, mask[2]); | |
2865 | nw64(TCAM_KEY_MASK_3, mask[3]); | |
2866 | nw64(TCAM_CTL, (TCAM_CTL_RWC_TCAM_WRITE | index)); | |
2867 | ||
2868 | return tcam_wait_bit(np, TCAM_CTL_STAT); | |
2869 | } | |
2870 | ||
2871 | #if 0 | |
2872 | static int tcam_assoc_read(struct niu *np, int index, u64 *data) | |
2873 | { | |
2874 | int err; | |
2875 | ||
2876 | nw64(TCAM_CTL, (TCAM_CTL_RWC_RAM_READ | index)); | |
2877 | err = tcam_wait_bit(np, TCAM_CTL_STAT); | |
2878 | if (!err) | |
2879 | *data = nr64(TCAM_KEY_1); | |
2880 | ||
2881 | return err; | |
2882 | } | |
2883 | #endif | |
2884 | ||
2885 | static int tcam_assoc_write(struct niu *np, int index, u64 assoc_data) | |
2886 | { | |
2887 | nw64(TCAM_KEY_1, assoc_data); | |
2888 | nw64(TCAM_CTL, (TCAM_CTL_RWC_RAM_WRITE | index)); | |
2889 | ||
2890 | return tcam_wait_bit(np, TCAM_CTL_STAT); | |
2891 | } | |
2892 | ||
2893 | static void tcam_enable(struct niu *np, int on) | |
2894 | { | |
2895 | u64 val = nr64(FFLP_CFG_1); | |
2896 | ||
2897 | if (on) | |
2898 | val &= ~FFLP_CFG_1_TCAM_DIS; | |
2899 | else | |
2900 | val |= FFLP_CFG_1_TCAM_DIS; | |
2901 | nw64(FFLP_CFG_1, val); | |
2902 | } | |
2903 | ||
2904 | static void tcam_set_lat_and_ratio(struct niu *np, u64 latency, u64 ratio) | |
2905 | { | |
2906 | u64 val = nr64(FFLP_CFG_1); | |
2907 | ||
2908 | val &= ~(FFLP_CFG_1_FFLPINITDONE | | |
2909 | FFLP_CFG_1_CAMLAT | | |
2910 | FFLP_CFG_1_CAMRATIO); | |
2911 | val |= (latency << FFLP_CFG_1_CAMLAT_SHIFT); | |
2912 | val |= (ratio << FFLP_CFG_1_CAMRATIO_SHIFT); | |
2913 | nw64(FFLP_CFG_1, val); | |
2914 | ||
2915 | val = nr64(FFLP_CFG_1); | |
2916 | val |= FFLP_CFG_1_FFLPINITDONE; | |
2917 | nw64(FFLP_CFG_1, val); | |
2918 | } | |
2919 | ||
2920 | static int tcam_user_eth_class_enable(struct niu *np, unsigned long class, | |
2921 | int on) | |
2922 | { | |
2923 | unsigned long reg; | |
2924 | u64 val; | |
2925 | ||
2926 | if (class < CLASS_CODE_ETHERTYPE1 || | |
2927 | class > CLASS_CODE_ETHERTYPE2) | |
2928 | return -EINVAL; | |
2929 | ||
2930 | reg = L2_CLS(class - CLASS_CODE_ETHERTYPE1); | |
2931 | val = nr64(reg); | |
2932 | if (on) | |
2933 | val |= L2_CLS_VLD; | |
2934 | else | |
2935 | val &= ~L2_CLS_VLD; | |
2936 | nw64(reg, val); | |
2937 | ||
2938 | return 0; | |
2939 | } | |
2940 | ||
2941 | #if 0 | |
2942 | static int tcam_user_eth_class_set(struct niu *np, unsigned long class, | |
2943 | u64 ether_type) | |
2944 | { | |
2945 | unsigned long reg; | |
2946 | u64 val; | |
2947 | ||
2948 | if (class < CLASS_CODE_ETHERTYPE1 || | |
2949 | class > CLASS_CODE_ETHERTYPE2 || | |
2950 | (ether_type & ~(u64)0xffff) != 0) | |
2951 | return -EINVAL; | |
2952 | ||
2953 | reg = L2_CLS(class - CLASS_CODE_ETHERTYPE1); | |
2954 | val = nr64(reg); | |
2955 | val &= ~L2_CLS_ETYPE; | |
2956 | val |= (ether_type << L2_CLS_ETYPE_SHIFT); | |
2957 | nw64(reg, val); | |
2958 | ||
2959 | return 0; | |
2960 | } | |
2961 | #endif | |
2962 | ||
2963 | static int tcam_user_ip_class_enable(struct niu *np, unsigned long class, | |
2964 | int on) | |
2965 | { | |
2966 | unsigned long reg; | |
2967 | u64 val; | |
2968 | ||
2969 | if (class < CLASS_CODE_USER_PROG1 || | |
2970 | class > CLASS_CODE_USER_PROG4) | |
2971 | return -EINVAL; | |
2972 | ||
2973 | reg = L3_CLS(class - CLASS_CODE_USER_PROG1); | |
2974 | val = nr64(reg); | |
2975 | if (on) | |
2976 | val |= L3_CLS_VALID; | |
2977 | else | |
2978 | val &= ~L3_CLS_VALID; | |
2979 | nw64(reg, val); | |
2980 | ||
2981 | return 0; | |
2982 | } | |
2983 | ||
a3138df9 DM |
2984 | static int tcam_user_ip_class_set(struct niu *np, unsigned long class, |
2985 | int ipv6, u64 protocol_id, | |
2986 | u64 tos_mask, u64 tos_val) | |
2987 | { | |
2988 | unsigned long reg; | |
2989 | u64 val; | |
2990 | ||
2991 | if (class < CLASS_CODE_USER_PROG1 || | |
2992 | class > CLASS_CODE_USER_PROG4 || | |
2993 | (protocol_id & ~(u64)0xff) != 0 || | |
2994 | (tos_mask & ~(u64)0xff) != 0 || | |
2995 | (tos_val & ~(u64)0xff) != 0) | |
2996 | return -EINVAL; | |
2997 | ||
2998 | reg = L3_CLS(class - CLASS_CODE_USER_PROG1); | |
2999 | val = nr64(reg); | |
3000 | val &= ~(L3_CLS_IPVER | L3_CLS_PID | | |
3001 | L3_CLS_TOSMASK | L3_CLS_TOS); | |
3002 | if (ipv6) | |
3003 | val |= L3_CLS_IPVER; | |
3004 | val |= (protocol_id << L3_CLS_PID_SHIFT); | |
3005 | val |= (tos_mask << L3_CLS_TOSMASK_SHIFT); | |
3006 | val |= (tos_val << L3_CLS_TOS_SHIFT); | |
3007 | nw64(reg, val); | |
3008 | ||
3009 | return 0; | |
3010 | } | |
a3138df9 DM |
3011 | |
3012 | static int tcam_early_init(struct niu *np) | |
3013 | { | |
3014 | unsigned long i; | |
3015 | int err; | |
3016 | ||
3017 | tcam_enable(np, 0); | |
3018 | tcam_set_lat_and_ratio(np, | |
3019 | DEFAULT_TCAM_LATENCY, | |
3020 | DEFAULT_TCAM_ACCESS_RATIO); | |
3021 | for (i = CLASS_CODE_ETHERTYPE1; i <= CLASS_CODE_ETHERTYPE2; i++) { | |
3022 | err = tcam_user_eth_class_enable(np, i, 0); | |
3023 | if (err) | |
3024 | return err; | |
3025 | } | |
3026 | for (i = CLASS_CODE_USER_PROG1; i <= CLASS_CODE_USER_PROG4; i++) { | |
3027 | err = tcam_user_ip_class_enable(np, i, 0); | |
3028 | if (err) | |
3029 | return err; | |
3030 | } | |
3031 | ||
3032 | return 0; | |
3033 | } | |
3034 | ||
3035 | static int tcam_flush_all(struct niu *np) | |
3036 | { | |
3037 | unsigned long i; | |
3038 | ||
3039 | for (i = 0; i < np->parent->tcam_num_entries; i++) { | |
3040 | int err = tcam_flush(np, i); | |
3041 | if (err) | |
3042 | return err; | |
3043 | } | |
3044 | return 0; | |
3045 | } | |
3046 | ||
3047 | static u64 hash_addr_regval(unsigned long index, unsigned long num_entries) | |
3048 | { | |
3049 | return ((u64)index | (num_entries == 1 ? | |
3050 | HASH_TBL_ADDR_AUTOINC : 0)); | |
3051 | } | |
3052 | ||
3053 | #if 0 | |
3054 | static int hash_read(struct niu *np, unsigned long partition, | |
3055 | unsigned long index, unsigned long num_entries, | |
3056 | u64 *data) | |
3057 | { | |
3058 | u64 val = hash_addr_regval(index, num_entries); | |
3059 | unsigned long i; | |
3060 | ||
3061 | if (partition >= FCRAM_NUM_PARTITIONS || | |
3062 | index + num_entries > FCRAM_SIZE) | |
3063 | return -EINVAL; | |
3064 | ||
3065 | nw64(HASH_TBL_ADDR(partition), val); | |
3066 | for (i = 0; i < num_entries; i++) | |
3067 | data[i] = nr64(HASH_TBL_DATA(partition)); | |
3068 | ||
3069 | return 0; | |
3070 | } | |
3071 | #endif | |
3072 | ||
3073 | static int hash_write(struct niu *np, unsigned long partition, | |
3074 | unsigned long index, unsigned long num_entries, | |
3075 | u64 *data) | |
3076 | { | |
3077 | u64 val = hash_addr_regval(index, num_entries); | |
3078 | unsigned long i; | |
3079 | ||
3080 | if (partition >= FCRAM_NUM_PARTITIONS || | |
3081 | index + (num_entries * 8) > FCRAM_SIZE) | |
3082 | return -EINVAL; | |
3083 | ||
3084 | nw64(HASH_TBL_ADDR(partition), val); | |
3085 | for (i = 0; i < num_entries; i++) | |
3086 | nw64(HASH_TBL_DATA(partition), data[i]); | |
3087 | ||
3088 | return 0; | |
3089 | } | |
3090 | ||
3091 | static void fflp_reset(struct niu *np) | |
3092 | { | |
3093 | u64 val; | |
3094 | ||
3095 | nw64(FFLP_CFG_1, FFLP_CFG_1_PIO_FIO_RST); | |
3096 | udelay(10); | |
3097 | nw64(FFLP_CFG_1, 0); | |
3098 | ||
3099 | val = FFLP_CFG_1_FCRAMOUTDR_NORMAL | FFLP_CFG_1_FFLPINITDONE; | |
3100 | nw64(FFLP_CFG_1, val); | |
3101 | } | |
3102 | ||
3103 | static void fflp_set_timings(struct niu *np) | |
3104 | { | |
3105 | u64 val = nr64(FFLP_CFG_1); | |
3106 | ||
3107 | val &= ~FFLP_CFG_1_FFLPINITDONE; | |
3108 | val |= (DEFAULT_FCRAMRATIO << FFLP_CFG_1_FCRAMRATIO_SHIFT); | |
3109 | nw64(FFLP_CFG_1, val); | |
3110 | ||
3111 | val = nr64(FFLP_CFG_1); | |
3112 | val |= FFLP_CFG_1_FFLPINITDONE; | |
3113 | nw64(FFLP_CFG_1, val); | |
3114 | ||
3115 | val = nr64(FCRAM_REF_TMR); | |
3116 | val &= ~(FCRAM_REF_TMR_MAX | FCRAM_REF_TMR_MIN); | |
3117 | val |= (DEFAULT_FCRAM_REFRESH_MAX << FCRAM_REF_TMR_MAX_SHIFT); | |
3118 | val |= (DEFAULT_FCRAM_REFRESH_MIN << FCRAM_REF_TMR_MIN_SHIFT); | |
3119 | nw64(FCRAM_REF_TMR, val); | |
3120 | } | |
3121 | ||
3122 | static int fflp_set_partition(struct niu *np, u64 partition, | |
3123 | u64 mask, u64 base, int enable) | |
3124 | { | |
3125 | unsigned long reg; | |
3126 | u64 val; | |
3127 | ||
3128 | if (partition >= FCRAM_NUM_PARTITIONS || | |
3129 | (mask & ~(u64)0x1f) != 0 || | |
3130 | (base & ~(u64)0x1f) != 0) | |
3131 | return -EINVAL; | |
3132 | ||
3133 | reg = FLW_PRT_SEL(partition); | |
3134 | ||
3135 | val = nr64(reg); | |
3136 | val &= ~(FLW_PRT_SEL_EXT | FLW_PRT_SEL_MASK | FLW_PRT_SEL_BASE); | |
3137 | val |= (mask << FLW_PRT_SEL_MASK_SHIFT); | |
3138 | val |= (base << FLW_PRT_SEL_BASE_SHIFT); | |
3139 | if (enable) | |
3140 | val |= FLW_PRT_SEL_EXT; | |
3141 | nw64(reg, val); | |
3142 | ||
3143 | return 0; | |
3144 | } | |
3145 | ||
3146 | static int fflp_disable_all_partitions(struct niu *np) | |
3147 | { | |
3148 | unsigned long i; | |
3149 | ||
3150 | for (i = 0; i < FCRAM_NUM_PARTITIONS; i++) { | |
3151 | int err = fflp_set_partition(np, 0, 0, 0, 0); | |
3152 | if (err) | |
3153 | return err; | |
3154 | } | |
3155 | return 0; | |
3156 | } | |
3157 | ||
3158 | static void fflp_llcsnap_enable(struct niu *np, int on) | |
3159 | { | |
3160 | u64 val = nr64(FFLP_CFG_1); | |
3161 | ||
3162 | if (on) | |
3163 | val |= FFLP_CFG_1_LLCSNAP; | |
3164 | else | |
3165 | val &= ~FFLP_CFG_1_LLCSNAP; | |
3166 | nw64(FFLP_CFG_1, val); | |
3167 | } | |
3168 | ||
3169 | static void fflp_errors_enable(struct niu *np, int on) | |
3170 | { | |
3171 | u64 val = nr64(FFLP_CFG_1); | |
3172 | ||
3173 | if (on) | |
3174 | val &= ~FFLP_CFG_1_ERRORDIS; | |
3175 | else | |
3176 | val |= FFLP_CFG_1_ERRORDIS; | |
3177 | nw64(FFLP_CFG_1, val); | |
3178 | } | |
3179 | ||
3180 | static int fflp_hash_clear(struct niu *np) | |
3181 | { | |
3182 | struct fcram_hash_ipv4 ent; | |
3183 | unsigned long i; | |
3184 | ||
3185 | /* IPV4 hash entry with valid bit clear, rest is don't care. */ | |
3186 | memset(&ent, 0, sizeof(ent)); | |
3187 | ent.header = HASH_HEADER_EXT; | |
3188 | ||
3189 | for (i = 0; i < FCRAM_SIZE; i += sizeof(ent)) { | |
3190 | int err = hash_write(np, 0, i, 1, (u64 *) &ent); | |
3191 | if (err) | |
3192 | return err; | |
3193 | } | |
3194 | return 0; | |
3195 | } | |
3196 | ||
3197 | static int fflp_early_init(struct niu *np) | |
3198 | { | |
3199 | struct niu_parent *parent; | |
3200 | unsigned long flags; | |
3201 | int err; | |
3202 | ||
3203 | niu_lock_parent(np, flags); | |
3204 | ||
3205 | parent = np->parent; | |
3206 | err = 0; | |
3207 | if (!(parent->flags & PARENT_FLGS_CLS_HWINIT)) { | |
3208 | niudbg(PROBE, "fflp_early_init: Initting hw on port %u\n", | |
3209 | np->port); | |
3210 | if (np->parent->plat_type != PLAT_TYPE_NIU) { | |
3211 | fflp_reset(np); | |
3212 | fflp_set_timings(np); | |
3213 | err = fflp_disable_all_partitions(np); | |
3214 | if (err) { | |
3215 | niudbg(PROBE, "fflp_disable_all_partitions " | |
3216 | "failed, err=%d\n", err); | |
3217 | goto out; | |
3218 | } | |
3219 | } | |
3220 | ||
3221 | err = tcam_early_init(np); | |
3222 | if (err) { | |
3223 | niudbg(PROBE, "tcam_early_init failed, err=%d\n", | |
3224 | err); | |
3225 | goto out; | |
3226 | } | |
3227 | fflp_llcsnap_enable(np, 1); | |
3228 | fflp_errors_enable(np, 0); | |
3229 | nw64(H1POLY, 0); | |
3230 | nw64(H2POLY, 0); | |
3231 | ||
3232 | err = tcam_flush_all(np); | |
3233 | if (err) { | |
3234 | niudbg(PROBE, "tcam_flush_all failed, err=%d\n", | |
3235 | err); | |
3236 | goto out; | |
3237 | } | |
3238 | if (np->parent->plat_type != PLAT_TYPE_NIU) { | |
3239 | err = fflp_hash_clear(np); | |
3240 | if (err) { | |
3241 | niudbg(PROBE, "fflp_hash_clear failed, " | |
3242 | "err=%d\n", err); | |
3243 | goto out; | |
3244 | } | |
3245 | } | |
3246 | ||
3247 | vlan_tbl_clear(np); | |
3248 | ||
3249 | niudbg(PROBE, "fflp_early_init: Success\n"); | |
3250 | parent->flags |= PARENT_FLGS_CLS_HWINIT; | |
3251 | } | |
3252 | out: | |
3253 | niu_unlock_parent(np, flags); | |
3254 | return err; | |
3255 | } | |
3256 | ||
3257 | static int niu_set_flow_key(struct niu *np, unsigned long class_code, u64 key) | |
3258 | { | |
3259 | if (class_code < CLASS_CODE_USER_PROG1 || | |
3260 | class_code > CLASS_CODE_SCTP_IPV6) | |
3261 | return -EINVAL; | |
3262 | ||
3263 | nw64(FLOW_KEY(class_code - CLASS_CODE_USER_PROG1), key); | |
3264 | return 0; | |
3265 | } | |
3266 | ||
3267 | static int niu_set_tcam_key(struct niu *np, unsigned long class_code, u64 key) | |
3268 | { | |
3269 | if (class_code < CLASS_CODE_USER_PROG1 || | |
3270 | class_code > CLASS_CODE_SCTP_IPV6) | |
3271 | return -EINVAL; | |
3272 | ||
3273 | nw64(TCAM_KEY(class_code - CLASS_CODE_USER_PROG1), key); | |
3274 | return 0; | |
3275 | } | |
3276 | ||
2d96cf8c SB |
3277 | /* Entries for the ports are interleaved in the TCAM */ |
3278 | static u16 tcam_get_index(struct niu *np, u16 idx) | |
3279 | { | |
3280 | /* One entry reserved for IP fragment rule */ | |
3281 | if (idx >= (np->clas.tcam_sz - 1)) | |
3282 | idx = 0; | |
3283 | return (np->clas.tcam_top + ((idx+1) * np->parent->num_ports)); | |
3284 | } | |
3285 | ||
3286 | static u16 tcam_get_size(struct niu *np) | |
3287 | { | |
3288 | /* One entry reserved for IP fragment rule */ | |
3289 | return np->clas.tcam_sz - 1; | |
3290 | } | |
3291 | ||
3292 | static u16 tcam_get_valid_entry_cnt(struct niu *np) | |
3293 | { | |
3294 | /* One entry reserved for IP fragment rule */ | |
3295 | return np->clas.tcam_valid_entries - 1; | |
3296 | } | |
3297 | ||
a3138df9 DM |
3298 | static void niu_rx_skb_append(struct sk_buff *skb, struct page *page, |
3299 | u32 offset, u32 size) | |
3300 | { | |
3301 | int i = skb_shinfo(skb)->nr_frags; | |
3302 | skb_frag_t *frag = &skb_shinfo(skb)->frags[i]; | |
3303 | ||
3304 | frag->page = page; | |
3305 | frag->page_offset = offset; | |
3306 | frag->size = size; | |
3307 | ||
3308 | skb->len += size; | |
3309 | skb->data_len += size; | |
3310 | skb->truesize += size; | |
3311 | ||
3312 | skb_shinfo(skb)->nr_frags = i + 1; | |
3313 | } | |
3314 | ||
3315 | static unsigned int niu_hash_rxaddr(struct rx_ring_info *rp, u64 a) | |
3316 | { | |
3317 | a >>= PAGE_SHIFT; | |
3318 | a ^= (a >> ilog2(MAX_RBR_RING_SIZE)); | |
3319 | ||
3320 | return (a & (MAX_RBR_RING_SIZE - 1)); | |
3321 | } | |
3322 | ||
3323 | static struct page *niu_find_rxpage(struct rx_ring_info *rp, u64 addr, | |
3324 | struct page ***link) | |
3325 | { | |
3326 | unsigned int h = niu_hash_rxaddr(rp, addr); | |
3327 | struct page *p, **pp; | |
3328 | ||
3329 | addr &= PAGE_MASK; | |
3330 | pp = &rp->rxhash[h]; | |
3331 | for (; (p = *pp) != NULL; pp = (struct page **) &p->mapping) { | |
3332 | if (p->index == addr) { | |
3333 | *link = pp; | |
3334 | break; | |
3335 | } | |
3336 | } | |
3337 | ||
3338 | return p; | |
3339 | } | |
3340 | ||
3341 | static void niu_hash_page(struct rx_ring_info *rp, struct page *page, u64 base) | |
3342 | { | |
3343 | unsigned int h = niu_hash_rxaddr(rp, base); | |
3344 | ||
3345 | page->index = base; | |
3346 | page->mapping = (struct address_space *) rp->rxhash[h]; | |
3347 | rp->rxhash[h] = page; | |
3348 | } | |
3349 | ||
3350 | static int niu_rbr_add_page(struct niu *np, struct rx_ring_info *rp, | |
3351 | gfp_t mask, int start_index) | |
3352 | { | |
3353 | struct page *page; | |
3354 | u64 addr; | |
3355 | int i; | |
3356 | ||
3357 | page = alloc_page(mask); | |
3358 | if (!page) | |
3359 | return -ENOMEM; | |
3360 | ||
3361 | addr = np->ops->map_page(np->device, page, 0, | |
3362 | PAGE_SIZE, DMA_FROM_DEVICE); | |
3363 | ||
3364 | niu_hash_page(rp, page, addr); | |
3365 | if (rp->rbr_blocks_per_page > 1) | |
3366 | atomic_add(rp->rbr_blocks_per_page - 1, | |
3367 | &compound_head(page)->_count); | |
3368 | ||
3369 | for (i = 0; i < rp->rbr_blocks_per_page; i++) { | |
3370 | __le32 *rbr = &rp->rbr[start_index + i]; | |
3371 | ||
3372 | *rbr = cpu_to_le32(addr >> RBR_DESCR_ADDR_SHIFT); | |
3373 | addr += rp->rbr_block_size; | |
3374 | } | |
3375 | ||
3376 | return 0; | |
3377 | } | |
3378 | ||
3379 | static void niu_rbr_refill(struct niu *np, struct rx_ring_info *rp, gfp_t mask) | |
3380 | { | |
3381 | int index = rp->rbr_index; | |
3382 | ||
3383 | rp->rbr_pending++; | |
3384 | if ((rp->rbr_pending % rp->rbr_blocks_per_page) == 0) { | |
3385 | int err = niu_rbr_add_page(np, rp, mask, index); | |
3386 | ||
3387 | if (unlikely(err)) { | |
3388 | rp->rbr_pending--; | |
3389 | return; | |
3390 | } | |
3391 | ||
3392 | rp->rbr_index += rp->rbr_blocks_per_page; | |
3393 | BUG_ON(rp->rbr_index > rp->rbr_table_size); | |
3394 | if (rp->rbr_index == rp->rbr_table_size) | |
3395 | rp->rbr_index = 0; | |
3396 | ||
3397 | if (rp->rbr_pending >= rp->rbr_kick_thresh) { | |
3398 | nw64(RBR_KICK(rp->rx_channel), rp->rbr_pending); | |
3399 | rp->rbr_pending = 0; | |
3400 | } | |
3401 | } | |
3402 | } | |
3403 | ||
3404 | static int niu_rx_pkt_ignore(struct niu *np, struct rx_ring_info *rp) | |
3405 | { | |
3406 | unsigned int index = rp->rcr_index; | |
3407 | int num_rcr = 0; | |
3408 | ||
3409 | rp->rx_dropped++; | |
3410 | while (1) { | |
3411 | struct page *page, **link; | |
3412 | u64 addr, val; | |
3413 | u32 rcr_size; | |
3414 | ||
3415 | num_rcr++; | |
3416 | ||
3417 | val = le64_to_cpup(&rp->rcr[index]); | |
3418 | addr = (val & RCR_ENTRY_PKT_BUF_ADDR) << | |
3419 | RCR_ENTRY_PKT_BUF_ADDR_SHIFT; | |
3420 | page = niu_find_rxpage(rp, addr, &link); | |
3421 | ||
3422 | rcr_size = rp->rbr_sizes[(val & RCR_ENTRY_PKTBUFSZ) >> | |
3423 | RCR_ENTRY_PKTBUFSZ_SHIFT]; | |
3424 | if ((page->index + PAGE_SIZE) - rcr_size == addr) { | |
3425 | *link = (struct page *) page->mapping; | |
3426 | np->ops->unmap_page(np->device, page->index, | |
3427 | PAGE_SIZE, DMA_FROM_DEVICE); | |
3428 | page->index = 0; | |
3429 | page->mapping = NULL; | |
3430 | __free_page(page); | |
3431 | rp->rbr_refill_pending++; | |
3432 | } | |
3433 | ||
3434 | index = NEXT_RCR(rp, index); | |
3435 | if (!(val & RCR_ENTRY_MULTI)) | |
3436 | break; | |
3437 | ||
3438 | } | |
3439 | rp->rcr_index = index; | |
3440 | ||
3441 | return num_rcr; | |
3442 | } | |
3443 | ||
3444 | static int niu_process_rx_pkt(struct niu *np, struct rx_ring_info *rp) | |
3445 | { | |
3446 | unsigned int index = rp->rcr_index; | |
3447 | struct sk_buff *skb; | |
3448 | int len, num_rcr; | |
3449 | ||
3450 | skb = netdev_alloc_skb(np->dev, RX_SKB_ALLOC_SIZE); | |
3451 | if (unlikely(!skb)) | |
3452 | return niu_rx_pkt_ignore(np, rp); | |
3453 | ||
3454 | num_rcr = 0; | |
3455 | while (1) { | |
3456 | struct page *page, **link; | |
3457 | u32 rcr_size, append_size; | |
3458 | u64 addr, val, off; | |
3459 | ||
3460 | num_rcr++; | |
3461 | ||
3462 | val = le64_to_cpup(&rp->rcr[index]); | |
3463 | ||
3464 | len = (val & RCR_ENTRY_L2_LEN) >> | |
3465 | RCR_ENTRY_L2_LEN_SHIFT; | |
3466 | len -= ETH_FCS_LEN; | |
3467 | ||
3468 | addr = (val & RCR_ENTRY_PKT_BUF_ADDR) << | |
3469 | RCR_ENTRY_PKT_BUF_ADDR_SHIFT; | |
3470 | page = niu_find_rxpage(rp, addr, &link); | |
3471 | ||
3472 | rcr_size = rp->rbr_sizes[(val & RCR_ENTRY_PKTBUFSZ) >> | |
3473 | RCR_ENTRY_PKTBUFSZ_SHIFT]; | |
3474 | ||
3475 | off = addr & ~PAGE_MASK; | |
3476 | append_size = rcr_size; | |
3477 | if (num_rcr == 1) { | |
3478 | int ptype; | |
3479 | ||
3480 | off += 2; | |
3481 | append_size -= 2; | |
3482 | ||
3483 | ptype = (val >> RCR_ENTRY_PKT_TYPE_SHIFT); | |
3484 | if ((ptype == RCR_PKT_TYPE_TCP || | |
3485 | ptype == RCR_PKT_TYPE_UDP) && | |
3486 | !(val & (RCR_ENTRY_NOPORT | | |
3487 | RCR_ENTRY_ERROR))) | |
3488 | skb->ip_summed = CHECKSUM_UNNECESSARY; | |
3489 | else | |
3490 | skb->ip_summed = CHECKSUM_NONE; | |
3491 | } | |
3492 | if (!(val & RCR_ENTRY_MULTI)) | |
3493 | append_size = len - skb->len; | |
3494 | ||
3495 | niu_rx_skb_append(skb, page, off, append_size); | |
3496 | if ((page->index + rp->rbr_block_size) - rcr_size == addr) { | |
3497 | *link = (struct page *) page->mapping; | |
3498 | np->ops->unmap_page(np->device, page->index, | |
3499 | PAGE_SIZE, DMA_FROM_DEVICE); | |
3500 | page->index = 0; | |
3501 | page->mapping = NULL; | |
3502 | rp->rbr_refill_pending++; | |
3503 | } else | |
3504 | get_page(page); | |
3505 | ||
3506 | index = NEXT_RCR(rp, index); | |
3507 | if (!(val & RCR_ENTRY_MULTI)) | |
3508 | break; | |
3509 | ||
3510 | } | |
3511 | rp->rcr_index = index; | |
3512 | ||
3513 | skb_reserve(skb, NET_IP_ALIGN); | |
3514 | __pskb_pull_tail(skb, min(len, NIU_RXPULL_MAX)); | |
3515 | ||
3516 | rp->rx_packets++; | |
3517 | rp->rx_bytes += skb->len; | |
3518 | ||
3519 | skb->protocol = eth_type_trans(skb, np->dev); | |
0c8dfc83 | 3520 | skb_record_rx_queue(skb, rp->rx_channel); |
a3138df9 DM |
3521 | netif_receive_skb(skb); |
3522 | ||
3523 | return num_rcr; | |
3524 | } | |
3525 | ||
3526 | static int niu_rbr_fill(struct niu *np, struct rx_ring_info *rp, gfp_t mask) | |
3527 | { | |
3528 | int blocks_per_page = rp->rbr_blocks_per_page; | |
3529 | int err, index = rp->rbr_index; | |
3530 | ||
3531 | err = 0; | |
3532 | while (index < (rp->rbr_table_size - blocks_per_page)) { | |
3533 | err = niu_rbr_add_page(np, rp, mask, index); | |
3534 | if (err) | |
3535 | break; | |
3536 | ||
3537 | index += blocks_per_page; | |
3538 | } | |
3539 | ||
3540 | rp->rbr_index = index; | |
3541 | return err; | |
3542 | } | |
3543 | ||
3544 | static void niu_rbr_free(struct niu *np, struct rx_ring_info *rp) | |
3545 | { | |
3546 | int i; | |
3547 | ||
3548 | for (i = 0; i < MAX_RBR_RING_SIZE; i++) { | |
3549 | struct page *page; | |
3550 | ||
3551 | page = rp->rxhash[i]; | |
3552 | while (page) { | |
3553 | struct page *next = (struct page *) page->mapping; | |
3554 | u64 base = page->index; | |
3555 | ||
3556 | np->ops->unmap_page(np->device, base, PAGE_SIZE, | |
3557 | DMA_FROM_DEVICE); | |
3558 | page->index = 0; | |
3559 | page->mapping = NULL; | |
3560 | ||
3561 | __free_page(page); | |
3562 | ||
3563 | page = next; | |
3564 | } | |
3565 | } | |
3566 | ||
3567 | for (i = 0; i < rp->rbr_table_size; i++) | |
3568 | rp->rbr[i] = cpu_to_le32(0); | |
3569 | rp->rbr_index = 0; | |
3570 | } | |
3571 | ||
3572 | static int release_tx_packet(struct niu *np, struct tx_ring_info *rp, int idx) | |
3573 | { | |
3574 | struct tx_buff_info *tb = &rp->tx_buffs[idx]; | |
3575 | struct sk_buff *skb = tb->skb; | |
3576 | struct tx_pkt_hdr *tp; | |
3577 | u64 tx_flags; | |
3578 | int i, len; | |
3579 | ||
3580 | tp = (struct tx_pkt_hdr *) skb->data; | |
3581 | tx_flags = le64_to_cpup(&tp->flags); | |
3582 | ||
3583 | rp->tx_packets++; | |
3584 | rp->tx_bytes += (((tx_flags & TXHDR_LEN) >> TXHDR_LEN_SHIFT) - | |
3585 | ((tx_flags & TXHDR_PAD) / 2)); | |
3586 | ||
3587 | len = skb_headlen(skb); | |
3588 | np->ops->unmap_single(np->device, tb->mapping, | |
3589 | len, DMA_TO_DEVICE); | |
3590 | ||
3591 | if (le64_to_cpu(rp->descr[idx]) & TX_DESC_MARK) | |
3592 | rp->mark_pending--; | |
3593 | ||
3594 | tb->skb = NULL; | |
3595 | do { | |
3596 | idx = NEXT_TX(rp, idx); | |
3597 | len -= MAX_TX_DESC_LEN; | |
3598 | } while (len > 0); | |
3599 | ||
3600 | for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) { | |
3601 | tb = &rp->tx_buffs[idx]; | |
3602 | BUG_ON(tb->skb != NULL); | |
3603 | np->ops->unmap_page(np->device, tb->mapping, | |
3604 | skb_shinfo(skb)->frags[i].size, | |
3605 | DMA_TO_DEVICE); | |
3606 | idx = NEXT_TX(rp, idx); | |
3607 | } | |
3608 | ||
3609 | dev_kfree_skb(skb); | |
3610 | ||
3611 | return idx; | |
3612 | } | |
3613 | ||
3614 | #define NIU_TX_WAKEUP_THRESH(rp) ((rp)->pending / 4) | |
3615 | ||
3616 | static void niu_tx_work(struct niu *np, struct tx_ring_info *rp) | |
3617 | { | |
b4c21639 | 3618 | struct netdev_queue *txq; |
a3138df9 | 3619 | u16 pkt_cnt, tmp; |
b4c21639 | 3620 | int cons, index; |
a3138df9 DM |
3621 | u64 cs; |
3622 | ||
b4c21639 DM |
3623 | index = (rp - np->tx_rings); |
3624 | txq = netdev_get_tx_queue(np->dev, index); | |
3625 | ||
a3138df9 DM |
3626 | cs = rp->tx_cs; |
3627 | if (unlikely(!(cs & (TX_CS_MK | TX_CS_MMK)))) | |
3628 | goto out; | |
3629 | ||
3630 | tmp = pkt_cnt = (cs & TX_CS_PKT_CNT) >> TX_CS_PKT_CNT_SHIFT; | |
3631 | pkt_cnt = (pkt_cnt - rp->last_pkt_cnt) & | |
3632 | (TX_CS_PKT_CNT >> TX_CS_PKT_CNT_SHIFT); | |
3633 | ||
3634 | rp->last_pkt_cnt = tmp; | |
3635 | ||
3636 | cons = rp->cons; | |
3637 | ||
3638 | niudbg(TX_DONE, "%s: niu_tx_work() pkt_cnt[%u] cons[%d]\n", | |
3639 | np->dev->name, pkt_cnt, cons); | |
3640 | ||
3641 | while (pkt_cnt--) | |
3642 | cons = release_tx_packet(np, rp, cons); | |
3643 | ||
3644 | rp->cons = cons; | |
3645 | smp_mb(); | |
3646 | ||
3647 | out: | |
b4c21639 | 3648 | if (unlikely(netif_tx_queue_stopped(txq) && |
a3138df9 | 3649 | (niu_tx_avail(rp) > NIU_TX_WAKEUP_THRESH(rp)))) { |
b4c21639 DM |
3650 | __netif_tx_lock(txq, smp_processor_id()); |
3651 | if (netif_tx_queue_stopped(txq) && | |
a3138df9 | 3652 | (niu_tx_avail(rp) > NIU_TX_WAKEUP_THRESH(rp))) |
b4c21639 DM |
3653 | netif_tx_wake_queue(txq); |
3654 | __netif_tx_unlock(txq); | |
a3138df9 DM |
3655 | } |
3656 | } | |
3657 | ||
b8a606b8 JDB |
3658 | static inline void niu_sync_rx_discard_stats(struct niu *np, |
3659 | struct rx_ring_info *rp, | |
3660 | const int limit) | |
3661 | { | |
3662 | /* This elaborate scheme is needed for reading the RX discard | |
3663 | * counters, as they are only 16-bit and can overflow quickly, | |
3664 | * and because the overflow indication bit is not usable as | |
3665 | * the counter value does not wrap, but remains at max value | |
3666 | * 0xFFFF. | |
3667 | * | |
3668 | * In theory and in practice counters can be lost in between | |
3669 | * reading nr64() and clearing the counter nw64(). For this | |
3670 | * reason, the number of counter clearings nw64() is | |
3671 | * limited/reduced though the limit parameter. | |
3672 | */ | |
3673 | int rx_channel = rp->rx_channel; | |
3674 | u32 misc, wred; | |
3675 | ||
3676 | /* RXMISC (Receive Miscellaneous Discard Count), covers the | |
3677 | * following discard events: IPP (Input Port Process), | |
3678 | * FFLP/TCAM, Full RCR (Receive Completion Ring) RBR (Receive | |
3679 | * Block Ring) prefetch buffer is empty. | |
3680 | */ | |
3681 | misc = nr64(RXMISC(rx_channel)); | |
3682 | if (unlikely((misc & RXMISC_COUNT) > limit)) { | |
3683 | nw64(RXMISC(rx_channel), 0); | |
3684 | rp->rx_errors += misc & RXMISC_COUNT; | |
3685 | ||
3686 | if (unlikely(misc & RXMISC_OFLOW)) | |
3687 | dev_err(np->device, "rx-%d: Counter overflow " | |
3688 | "RXMISC discard\n", rx_channel); | |
d231776f JDB |
3689 | |
3690 | niudbg(RX_ERR, "%s-rx-%d: MISC drop=%u over=%u\n", | |
3691 | np->dev->name, rx_channel, misc, misc-limit); | |
b8a606b8 JDB |
3692 | } |
3693 | ||
3694 | /* WRED (Weighted Random Early Discard) by hardware */ | |
3695 | wred = nr64(RED_DIS_CNT(rx_channel)); | |
3696 | if (unlikely((wred & RED_DIS_CNT_COUNT) > limit)) { | |
3697 | nw64(RED_DIS_CNT(rx_channel), 0); | |
3698 | rp->rx_dropped += wred & RED_DIS_CNT_COUNT; | |
3699 | ||
3700 | if (unlikely(wred & RED_DIS_CNT_OFLOW)) | |
3701 | dev_err(np->device, "rx-%d: Counter overflow " | |
3702 | "WRED discard\n", rx_channel); | |
d231776f JDB |
3703 | |
3704 | niudbg(RX_ERR, "%s-rx-%d: WRED drop=%u over=%u\n", | |
3705 | np->dev->name, rx_channel, wred, wred-limit); | |
b8a606b8 JDB |
3706 | } |
3707 | } | |
3708 | ||
a3138df9 DM |
3709 | static int niu_rx_work(struct niu *np, struct rx_ring_info *rp, int budget) |
3710 | { | |
3711 | int qlen, rcr_done = 0, work_done = 0; | |
3712 | struct rxdma_mailbox *mbox = rp->mbox; | |
3713 | u64 stat; | |
3714 | ||
3715 | #if 1 | |
3716 | stat = nr64(RX_DMA_CTL_STAT(rp->rx_channel)); | |
3717 | qlen = nr64(RCRSTAT_A(rp->rx_channel)) & RCRSTAT_A_QLEN; | |
3718 | #else | |
3719 | stat = le64_to_cpup(&mbox->rx_dma_ctl_stat); | |
3720 | qlen = (le64_to_cpup(&mbox->rcrstat_a) & RCRSTAT_A_QLEN); | |
3721 | #endif | |
3722 | mbox->rx_dma_ctl_stat = 0; | |
3723 | mbox->rcrstat_a = 0; | |
3724 | ||
3725 | niudbg(RX_STATUS, "%s: niu_rx_work(chan[%d]), stat[%llx] qlen=%d\n", | |
3726 | np->dev->name, rp->rx_channel, (unsigned long long) stat, qlen); | |
3727 | ||
3728 | rcr_done = work_done = 0; | |
3729 | qlen = min(qlen, budget); | |
3730 | while (work_done < qlen) { | |
3731 | rcr_done += niu_process_rx_pkt(np, rp); | |
3732 | work_done++; | |
3733 | } | |
3734 | ||
3735 | if (rp->rbr_refill_pending >= rp->rbr_kick_thresh) { | |
3736 | unsigned int i; | |
3737 | ||
3738 | for (i = 0; i < rp->rbr_refill_pending; i++) | |
3739 | niu_rbr_refill(np, rp, GFP_ATOMIC); | |
3740 | rp->rbr_refill_pending = 0; | |
3741 | } | |
3742 | ||
3743 | stat = (RX_DMA_CTL_STAT_MEX | | |
3744 | ((u64)work_done << RX_DMA_CTL_STAT_PKTREAD_SHIFT) | | |
3745 | ((u64)rcr_done << RX_DMA_CTL_STAT_PTRREAD_SHIFT)); | |
3746 | ||
3747 | nw64(RX_DMA_CTL_STAT(rp->rx_channel), stat); | |
3748 | ||
e98def1f JDB |
3749 | /* Only sync discards stats when qlen indicate potential for drops */ |
3750 | if (qlen > 10) | |
3751 | niu_sync_rx_discard_stats(np, rp, 0x7FFF); | |
b8a606b8 | 3752 | |
a3138df9 DM |
3753 | return work_done; |
3754 | } | |
3755 | ||
3756 | static int niu_poll_core(struct niu *np, struct niu_ldg *lp, int budget) | |
3757 | { | |
3758 | u64 v0 = lp->v0; | |
3759 | u32 tx_vec = (v0 >> 32); | |
3760 | u32 rx_vec = (v0 & 0xffffffff); | |
3761 | int i, work_done = 0; | |
3762 | ||
3763 | niudbg(INTR, "%s: niu_poll_core() v0[%016llx]\n", | |
3764 | np->dev->name, (unsigned long long) v0); | |
3765 | ||
3766 | for (i = 0; i < np->num_tx_rings; i++) { | |
3767 | struct tx_ring_info *rp = &np->tx_rings[i]; | |
3768 | if (tx_vec & (1 << rp->tx_channel)) | |
3769 | niu_tx_work(np, rp); | |
3770 | nw64(LD_IM0(LDN_TXDMA(rp->tx_channel)), 0); | |
3771 | } | |
3772 | ||
3773 | for (i = 0; i < np->num_rx_rings; i++) { | |
3774 | struct rx_ring_info *rp = &np->rx_rings[i]; | |
3775 | ||
3776 | if (rx_vec & (1 << rp->rx_channel)) { | |
3777 | int this_work_done; | |
3778 | ||
3779 | this_work_done = niu_rx_work(np, rp, | |
3780 | budget); | |
3781 | ||
3782 | budget -= this_work_done; | |
3783 | work_done += this_work_done; | |
3784 | } | |
3785 | nw64(LD_IM0(LDN_RXDMA(rp->rx_channel)), 0); | |
3786 | } | |
3787 | ||
3788 | return work_done; | |
3789 | } | |
3790 | ||
3791 | static int niu_poll(struct napi_struct *napi, int budget) | |
3792 | { | |
3793 | struct niu_ldg *lp = container_of(napi, struct niu_ldg, napi); | |
3794 | struct niu *np = lp->np; | |
3795 | int work_done; | |
3796 | ||
3797 | work_done = niu_poll_core(np, lp, budget); | |
3798 | ||
3799 | if (work_done < budget) { | |
288379f0 | 3800 | napi_complete(napi); |
a3138df9 DM |
3801 | niu_ldg_rearm(np, lp, 1); |
3802 | } | |
3803 | return work_done; | |
3804 | } | |
3805 | ||
3806 | static void niu_log_rxchan_errors(struct niu *np, struct rx_ring_info *rp, | |
3807 | u64 stat) | |
3808 | { | |
3809 | dev_err(np->device, PFX "%s: RX channel %u errors ( ", | |
3810 | np->dev->name, rp->rx_channel); | |
3811 | ||
3812 | if (stat & RX_DMA_CTL_STAT_RBR_TMOUT) | |
3813 | printk("RBR_TMOUT "); | |
3814 | if (stat & RX_DMA_CTL_STAT_RSP_CNT_ERR) | |
3815 | printk("RSP_CNT "); | |
3816 | if (stat & RX_DMA_CTL_STAT_BYTE_EN_BUS) | |
3817 | printk("BYTE_EN_BUS "); | |
3818 | if (stat & RX_DMA_CTL_STAT_RSP_DAT_ERR) | |
3819 | printk("RSP_DAT "); | |
3820 | if (stat & RX_DMA_CTL_STAT_RCR_ACK_ERR) | |
3821 | printk("RCR_ACK "); | |
3822 | if (stat & RX_DMA_CTL_STAT_RCR_SHA_PAR) | |
3823 | printk("RCR_SHA_PAR "); | |
3824 | if (stat & RX_DMA_CTL_STAT_RBR_PRE_PAR) | |
3825 | printk("RBR_PRE_PAR "); | |
3826 | if (stat & RX_DMA_CTL_STAT_CONFIG_ERR) | |
3827 | printk("CONFIG "); | |
3828 | if (stat & RX_DMA_CTL_STAT_RCRINCON) | |
3829 | printk("RCRINCON "); | |
3830 | if (stat & RX_DMA_CTL_STAT_RCRFULL) | |
3831 | printk("RCRFULL "); | |
3832 | if (stat & RX_DMA_CTL_STAT_RBRFULL) | |
3833 | printk("RBRFULL "); | |
3834 | if (stat & RX_DMA_CTL_STAT_RBRLOGPAGE) | |
3835 | printk("RBRLOGPAGE "); | |
3836 | if (stat & RX_DMA_CTL_STAT_CFIGLOGPAGE) | |
3837 | printk("CFIGLOGPAGE "); | |
3838 | if (stat & RX_DMA_CTL_STAT_DC_FIFO_ERR) | |
3839 | printk("DC_FIDO "); | |
3840 | ||
3841 | printk(")\n"); | |
3842 | } | |
3843 | ||
3844 | static int niu_rx_error(struct niu *np, struct rx_ring_info *rp) | |
3845 | { | |
3846 | u64 stat = nr64(RX_DMA_CTL_STAT(rp->rx_channel)); | |
3847 | int err = 0; | |
3848 | ||
a3138df9 DM |
3849 | |
3850 | if (stat & (RX_DMA_CTL_STAT_CHAN_FATAL | | |
3851 | RX_DMA_CTL_STAT_PORT_FATAL)) | |
3852 | err = -EINVAL; | |
3853 | ||
406f353c MW |
3854 | if (err) { |
3855 | dev_err(np->device, PFX "%s: RX channel %u error, stat[%llx]\n", | |
3856 | np->dev->name, rp->rx_channel, | |
3857 | (unsigned long long) stat); | |
3858 | ||
3859 | niu_log_rxchan_errors(np, rp, stat); | |
3860 | } | |
3861 | ||
a3138df9 DM |
3862 | nw64(RX_DMA_CTL_STAT(rp->rx_channel), |
3863 | stat & RX_DMA_CTL_WRITE_CLEAR_ERRS); | |
3864 | ||
3865 | return err; | |
3866 | } | |
3867 | ||
3868 | static void niu_log_txchan_errors(struct niu *np, struct tx_ring_info *rp, | |
3869 | u64 cs) | |
3870 | { | |
3871 | dev_err(np->device, PFX "%s: TX channel %u errors ( ", | |
3872 | np->dev->name, rp->tx_channel); | |
3873 | ||
3874 | if (cs & TX_CS_MBOX_ERR) | |
3875 | printk("MBOX "); | |
3876 | if (cs & TX_CS_PKT_SIZE_ERR) | |
3877 | printk("PKT_SIZE "); | |
3878 | if (cs & TX_CS_TX_RING_OFLOW) | |
3879 | printk("TX_RING_OFLOW "); | |
3880 | if (cs & TX_CS_PREF_BUF_PAR_ERR) | |
3881 | printk("PREF_BUF_PAR "); | |
3882 | if (cs & TX_CS_NACK_PREF) | |
3883 | printk("NACK_PREF "); | |
3884 | if (cs & TX_CS_NACK_PKT_RD) | |
3885 | printk("NACK_PKT_RD "); | |
3886 | if (cs & TX_CS_CONF_PART_ERR) | |
3887 | printk("CONF_PART "); | |
3888 | if (cs & TX_CS_PKT_PRT_ERR) | |
3889 | printk("PKT_PTR "); | |
3890 | ||
3891 | printk(")\n"); | |
3892 | } | |
3893 | ||
3894 | static int niu_tx_error(struct niu *np, struct tx_ring_info *rp) | |
3895 | { | |
3896 | u64 cs, logh, logl; | |
3897 | ||
3898 | cs = nr64(TX_CS(rp->tx_channel)); | |
3899 | logh = nr64(TX_RNG_ERR_LOGH(rp->tx_channel)); | |
3900 | logl = nr64(TX_RNG_ERR_LOGL(rp->tx_channel)); | |
3901 | ||
3902 | dev_err(np->device, PFX "%s: TX channel %u error, " | |
3903 | "cs[%llx] logh[%llx] logl[%llx]\n", | |
3904 | np->dev->name, rp->tx_channel, | |
3905 | (unsigned long long) cs, | |
3906 | (unsigned long long) logh, | |
3907 | (unsigned long long) logl); | |
3908 | ||
3909 | niu_log_txchan_errors(np, rp, cs); | |
3910 | ||
3911 | return -ENODEV; | |
3912 | } | |
3913 | ||
3914 | static int niu_mif_interrupt(struct niu *np) | |
3915 | { | |
3916 | u64 mif_status = nr64(MIF_STATUS); | |
3917 | int phy_mdint = 0; | |
3918 | ||
3919 | if (np->flags & NIU_FLAGS_XMAC) { | |
3920 | u64 xrxmac_stat = nr64_mac(XRXMAC_STATUS); | |
3921 | ||
3922 | if (xrxmac_stat & XRXMAC_STATUS_PHY_MDINT) | |
3923 | phy_mdint = 1; | |
3924 | } | |
3925 | ||
3926 | dev_err(np->device, PFX "%s: MIF interrupt, " | |
3927 | "stat[%llx] phy_mdint(%d)\n", | |
3928 | np->dev->name, (unsigned long long) mif_status, phy_mdint); | |
3929 | ||
3930 | return -ENODEV; | |
3931 | } | |
3932 | ||
3933 | static void niu_xmac_interrupt(struct niu *np) | |
3934 | { | |
3935 | struct niu_xmac_stats *mp = &np->mac_stats.xmac; | |
3936 | u64 val; | |
3937 | ||
3938 | val = nr64_mac(XTXMAC_STATUS); | |
3939 | if (val & XTXMAC_STATUS_FRAME_CNT_EXP) | |
3940 | mp->tx_frames += TXMAC_FRM_CNT_COUNT; | |
3941 | if (val & XTXMAC_STATUS_BYTE_CNT_EXP) | |
3942 | mp->tx_bytes += TXMAC_BYTE_CNT_COUNT; | |
3943 | if (val & XTXMAC_STATUS_TXFIFO_XFR_ERR) | |
3944 | mp->tx_fifo_errors++; | |
3945 | if (val & XTXMAC_STATUS_TXMAC_OFLOW) | |
3946 | mp->tx_overflow_errors++; | |
3947 | if (val & XTXMAC_STATUS_MAX_PSIZE_ERR) | |
3948 | mp->tx_max_pkt_size_errors++; | |
3949 | if (val & XTXMAC_STATUS_TXMAC_UFLOW) | |
3950 | mp->tx_underflow_errors++; | |
3951 | ||
3952 | val = nr64_mac(XRXMAC_STATUS); | |
3953 | if (val & XRXMAC_STATUS_LCL_FLT_STATUS) | |
3954 | mp->rx_local_faults++; | |
3955 | if (val & XRXMAC_STATUS_RFLT_DET) | |
3956 | mp->rx_remote_faults++; | |
3957 | if (val & XRXMAC_STATUS_LFLT_CNT_EXP) | |
3958 | mp->rx_link_faults += LINK_FAULT_CNT_COUNT; | |
3959 | if (val & XRXMAC_STATUS_ALIGNERR_CNT_EXP) | |
3960 | mp->rx_align_errors += RXMAC_ALIGN_ERR_CNT_COUNT; | |
3961 | if (val & XRXMAC_STATUS_RXFRAG_CNT_EXP) | |
3962 | mp->rx_frags += RXMAC_FRAG_CNT_COUNT; | |
3963 | if (val & XRXMAC_STATUS_RXMULTF_CNT_EXP) | |
3964 | mp->rx_mcasts += RXMAC_MC_FRM_CNT_COUNT; | |
3965 | if (val & XRXMAC_STATUS_RXBCAST_CNT_EXP) | |
3966 | mp->rx_bcasts += RXMAC_BC_FRM_CNT_COUNT; | |
3967 | if (val & XRXMAC_STATUS_RXBCAST_CNT_EXP) | |
3968 | mp->rx_bcasts += RXMAC_BC_FRM_CNT_COUNT; | |
3969 | if (val & XRXMAC_STATUS_RXHIST1_CNT_EXP) | |
3970 | mp->rx_hist_cnt1 += RXMAC_HIST_CNT1_COUNT; | |
3971 | if (val & XRXMAC_STATUS_RXHIST2_CNT_EXP) | |
3972 | mp->rx_hist_cnt2 += RXMAC_HIST_CNT2_COUNT; | |
3973 | if (val & XRXMAC_STATUS_RXHIST3_CNT_EXP) | |
3974 | mp->rx_hist_cnt3 += RXMAC_HIST_CNT3_COUNT; | |
3975 | if (val & XRXMAC_STATUS_RXHIST4_CNT_EXP) | |
3976 | mp->rx_hist_cnt4 += RXMAC_HIST_CNT4_COUNT; | |
3977 | if (val & XRXMAC_STATUS_RXHIST5_CNT_EXP) | |
3978 | mp->rx_hist_cnt5 += RXMAC_HIST_CNT5_COUNT; | |
3979 | if (val & XRXMAC_STATUS_RXHIST6_CNT_EXP) | |
3980 | mp->rx_hist_cnt6 += RXMAC_HIST_CNT6_COUNT; | |
3981 | if (val & XRXMAC_STATUS_RXHIST7_CNT_EXP) | |
3982 | mp->rx_hist_cnt7 += RXMAC_HIST_CNT7_COUNT; | |
3983 | if (val & XRXMAC_STAT_MSK_RXOCTET_CNT_EXP) | |
3984 | mp->rx_octets += RXMAC_BT_CNT_COUNT; | |
3985 | if (val & XRXMAC_STATUS_CVIOLERR_CNT_EXP) | |
3986 | mp->rx_code_violations += RXMAC_CD_VIO_CNT_COUNT; | |
3987 | if (val & XRXMAC_STATUS_LENERR_CNT_EXP) | |
3988 | mp->rx_len_errors += RXMAC_MPSZER_CNT_COUNT; | |
3989 | if (val & XRXMAC_STATUS_CRCERR_CNT_EXP) | |
3990 | mp->rx_crc_errors += RXMAC_CRC_ER_CNT_COUNT; | |
3991 | if (val & XRXMAC_STATUS_RXUFLOW) | |
3992 | mp->rx_underflows++; | |
3993 | if (val & XRXMAC_STATUS_RXOFLOW) | |
3994 | mp->rx_overflows++; | |
3995 | ||
3996 | val = nr64_mac(XMAC_FC_STAT); | |
3997 | if (val & XMAC_FC_STAT_TX_MAC_NPAUSE) | |
3998 | mp->pause_off_state++; | |
3999 | if (val & XMAC_FC_STAT_TX_MAC_PAUSE) | |
4000 | mp->pause_on_state++; | |
4001 | if (val & XMAC_FC_STAT_RX_MAC_RPAUSE) | |
4002 | mp->pause_received++; | |
4003 | } | |
4004 | ||
4005 | static void niu_bmac_interrupt(struct niu *np) | |
4006 | { | |
4007 | struct niu_bmac_stats *mp = &np->mac_stats.bmac; | |
4008 | u64 val; | |
4009 | ||
4010 | val = nr64_mac(BTXMAC_STATUS); | |
4011 | if (val & BTXMAC_STATUS_UNDERRUN) | |
4012 | mp->tx_underflow_errors++; | |
4013 | if (val & BTXMAC_STATUS_MAX_PKT_ERR) | |
4014 | mp->tx_max_pkt_size_errors++; | |
4015 | if (val & BTXMAC_STATUS_BYTE_CNT_EXP) | |
4016 | mp->tx_bytes += BTXMAC_BYTE_CNT_COUNT; | |
4017 | if (val & BTXMAC_STATUS_FRAME_CNT_EXP) | |
4018 | mp->tx_frames += BTXMAC_FRM_CNT_COUNT; | |
4019 | ||
4020 | val = nr64_mac(BRXMAC_STATUS); | |
4021 | if (val & BRXMAC_STATUS_OVERFLOW) | |
4022 | mp->rx_overflows++; | |
4023 | if (val & BRXMAC_STATUS_FRAME_CNT_EXP) | |
4024 | mp->rx_frames += BRXMAC_FRAME_CNT_COUNT; | |
4025 | if (val & BRXMAC_STATUS_ALIGN_ERR_EXP) | |
4026 | mp->rx_align_errors += BRXMAC_ALIGN_ERR_CNT_COUNT; | |
4027 | if (val & BRXMAC_STATUS_CRC_ERR_EXP) | |
4028 | mp->rx_crc_errors += BRXMAC_ALIGN_ERR_CNT_COUNT; | |
4029 | if (val & BRXMAC_STATUS_LEN_ERR_EXP) | |
4030 | mp->rx_len_errors += BRXMAC_CODE_VIOL_ERR_CNT_COUNT; | |
4031 | ||
4032 | val = nr64_mac(BMAC_CTRL_STATUS); | |
4033 | if (val & BMAC_CTRL_STATUS_NOPAUSE) | |
4034 | mp->pause_off_state++; | |
4035 | if (val & BMAC_CTRL_STATUS_PAUSE) | |
4036 | mp->pause_on_state++; | |
4037 | if (val & BMAC_CTRL_STATUS_PAUSE_RECV) | |
4038 | mp->pause_received++; | |
4039 | } | |
4040 | ||
4041 | static int niu_mac_interrupt(struct niu *np) | |
4042 | { | |
4043 | if (np->flags & NIU_FLAGS_XMAC) | |
4044 | niu_xmac_interrupt(np); | |
4045 | else | |
4046 | niu_bmac_interrupt(np); | |
4047 | ||
4048 | return 0; | |
4049 | } | |
4050 | ||
4051 | static void niu_log_device_error(struct niu *np, u64 stat) | |
4052 | { | |
4053 | dev_err(np->device, PFX "%s: Core device errors ( ", | |
4054 | np->dev->name); | |
4055 | ||
4056 | if (stat & SYS_ERR_MASK_META2) | |
4057 | printk("META2 "); | |
4058 | if (stat & SYS_ERR_MASK_META1) | |
4059 | printk("META1 "); | |
4060 | if (stat & SYS_ERR_MASK_PEU) | |
4061 | printk("PEU "); | |
4062 | if (stat & SYS_ERR_MASK_TXC) | |
4063 | printk("TXC "); | |
4064 | if (stat & SYS_ERR_MASK_RDMC) | |
4065 | printk("RDMC "); | |
4066 | if (stat & SYS_ERR_MASK_TDMC) | |
4067 | printk("TDMC "); | |
4068 | if (stat & SYS_ERR_MASK_ZCP) | |
4069 | printk("ZCP "); | |
4070 | if (stat & SYS_ERR_MASK_FFLP) | |
4071 | printk("FFLP "); | |
4072 | if (stat & SYS_ERR_MASK_IPP) | |
4073 | printk("IPP "); | |
4074 | if (stat & SYS_ERR_MASK_MAC) | |
4075 | printk("MAC "); | |
4076 | if (stat & SYS_ERR_MASK_SMX) | |
4077 | printk("SMX "); | |
4078 | ||
4079 | printk(")\n"); | |
4080 | } | |
4081 | ||
4082 | static int niu_device_error(struct niu *np) | |
4083 | { | |
4084 | u64 stat = nr64(SYS_ERR_STAT); | |
4085 | ||
4086 | dev_err(np->device, PFX "%s: Core device error, stat[%llx]\n", | |
4087 | np->dev->name, (unsigned long long) stat); | |
4088 | ||
4089 | niu_log_device_error(np, stat); | |
4090 | ||
4091 | return -ENODEV; | |
4092 | } | |
4093 | ||
406f353c MW |
4094 | static int niu_slowpath_interrupt(struct niu *np, struct niu_ldg *lp, |
4095 | u64 v0, u64 v1, u64 v2) | |
a3138df9 | 4096 | { |
406f353c | 4097 | |
a3138df9 DM |
4098 | int i, err = 0; |
4099 | ||
406f353c MW |
4100 | lp->v0 = v0; |
4101 | lp->v1 = v1; | |
4102 | lp->v2 = v2; | |
4103 | ||
a3138df9 DM |
4104 | if (v1 & 0x00000000ffffffffULL) { |
4105 | u32 rx_vec = (v1 & 0xffffffff); | |
4106 | ||
4107 | for (i = 0; i < np->num_rx_rings; i++) { | |
4108 | struct rx_ring_info *rp = &np->rx_rings[i]; | |
4109 | ||
4110 | if (rx_vec & (1 << rp->rx_channel)) { | |
4111 | int r = niu_rx_error(np, rp); | |
406f353c | 4112 | if (r) { |
a3138df9 | 4113 | err = r; |
406f353c MW |
4114 | } else { |
4115 | if (!v0) | |
4116 | nw64(RX_DMA_CTL_STAT(rp->rx_channel), | |
4117 | RX_DMA_CTL_STAT_MEX); | |
4118 | } | |
a3138df9 DM |
4119 | } |
4120 | } | |
4121 | } | |
4122 | if (v1 & 0x7fffffff00000000ULL) { | |
4123 | u32 tx_vec = (v1 >> 32) & 0x7fffffff; | |
4124 | ||
4125 | for (i = 0; i < np->num_tx_rings; i++) { | |
4126 | struct tx_ring_info *rp = &np->tx_rings[i]; | |
4127 | ||
4128 | if (tx_vec & (1 << rp->tx_channel)) { | |
4129 | int r = niu_tx_error(np, rp); | |
4130 | if (r) | |
4131 | err = r; | |
4132 | } | |
4133 | } | |
4134 | } | |
4135 | if ((v0 | v1) & 0x8000000000000000ULL) { | |
4136 | int r = niu_mif_interrupt(np); | |
4137 | if (r) | |
4138 | err = r; | |
4139 | } | |
4140 | if (v2) { | |
4141 | if (v2 & 0x01ef) { | |
4142 | int r = niu_mac_interrupt(np); | |
4143 | if (r) | |
4144 | err = r; | |
4145 | } | |
4146 | if (v2 & 0x0210) { | |
4147 | int r = niu_device_error(np); | |
4148 | if (r) | |
4149 | err = r; | |
4150 | } | |
4151 | } | |
4152 | ||
4153 | if (err) | |
4154 | niu_enable_interrupts(np, 0); | |
4155 | ||
406f353c | 4156 | return err; |
a3138df9 DM |
4157 | } |
4158 | ||
4159 | static void niu_rxchan_intr(struct niu *np, struct rx_ring_info *rp, | |
4160 | int ldn) | |
4161 | { | |
4162 | struct rxdma_mailbox *mbox = rp->mbox; | |
4163 | u64 stat_write, stat = le64_to_cpup(&mbox->rx_dma_ctl_stat); | |
4164 | ||
4165 | stat_write = (RX_DMA_CTL_STAT_RCRTHRES | | |
4166 | RX_DMA_CTL_STAT_RCRTO); | |
4167 | nw64(RX_DMA_CTL_STAT(rp->rx_channel), stat_write); | |
4168 | ||
4169 | niudbg(INTR, "%s: rxchan_intr stat[%llx]\n", | |
4170 | np->dev->name, (unsigned long long) stat); | |
4171 | } | |
4172 | ||
4173 | static void niu_txchan_intr(struct niu *np, struct tx_ring_info *rp, | |
4174 | int ldn) | |
4175 | { | |
4176 | rp->tx_cs = nr64(TX_CS(rp->tx_channel)); | |
4177 | ||
4178 | niudbg(INTR, "%s: txchan_intr cs[%llx]\n", | |
4179 | np->dev->name, (unsigned long long) rp->tx_cs); | |
4180 | } | |
4181 | ||
4182 | static void __niu_fastpath_interrupt(struct niu *np, int ldg, u64 v0) | |
4183 | { | |
4184 | struct niu_parent *parent = np->parent; | |
4185 | u32 rx_vec, tx_vec; | |
4186 | int i; | |
4187 | ||
4188 | tx_vec = (v0 >> 32); | |
4189 | rx_vec = (v0 & 0xffffffff); | |
4190 | ||
4191 | for (i = 0; i < np->num_rx_rings; i++) { | |
4192 | struct rx_ring_info *rp = &np->rx_rings[i]; | |
4193 | int ldn = LDN_RXDMA(rp->rx_channel); | |
4194 | ||
4195 | if (parent->ldg_map[ldn] != ldg) | |
4196 | continue; | |
4197 | ||
4198 | nw64(LD_IM0(ldn), LD_IM0_MASK); | |
4199 | if (rx_vec & (1 << rp->rx_channel)) | |
4200 | niu_rxchan_intr(np, rp, ldn); | |
4201 | } | |
4202 | ||
4203 | for (i = 0; i < np->num_tx_rings; i++) { | |
4204 | struct tx_ring_info *rp = &np->tx_rings[i]; | |
4205 | int ldn = LDN_TXDMA(rp->tx_channel); | |
4206 | ||
4207 | if (parent->ldg_map[ldn] != ldg) | |
4208 | continue; | |
4209 | ||
4210 | nw64(LD_IM0(ldn), LD_IM0_MASK); | |
4211 | if (tx_vec & (1 << rp->tx_channel)) | |
4212 | niu_txchan_intr(np, rp, ldn); | |
4213 | } | |
4214 | } | |
4215 | ||
4216 | static void niu_schedule_napi(struct niu *np, struct niu_ldg *lp, | |
4217 | u64 v0, u64 v1, u64 v2) | |
4218 | { | |
288379f0 | 4219 | if (likely(napi_schedule_prep(&lp->napi))) { |
a3138df9 DM |
4220 | lp->v0 = v0; |
4221 | lp->v1 = v1; | |
4222 | lp->v2 = v2; | |
4223 | __niu_fastpath_interrupt(np, lp->ldg_num, v0); | |
288379f0 | 4224 | __napi_schedule(&lp->napi); |
a3138df9 DM |
4225 | } |
4226 | } | |
4227 | ||
4228 | static irqreturn_t niu_interrupt(int irq, void *dev_id) | |
4229 | { | |
4230 | struct niu_ldg *lp = dev_id; | |
4231 | struct niu *np = lp->np; | |
4232 | int ldg = lp->ldg_num; | |
4233 | unsigned long flags; | |
4234 | u64 v0, v1, v2; | |
4235 | ||
4236 | if (netif_msg_intr(np)) | |
4237 | printk(KERN_DEBUG PFX "niu_interrupt() ldg[%p](%d) ", | |
4238 | lp, ldg); | |
4239 | ||
4240 | spin_lock_irqsave(&np->lock, flags); | |
4241 | ||
4242 | v0 = nr64(LDSV0(ldg)); | |
4243 | v1 = nr64(LDSV1(ldg)); | |
4244 | v2 = nr64(LDSV2(ldg)); | |
4245 | ||
4246 | if (netif_msg_intr(np)) | |
4247 | printk("v0[%llx] v1[%llx] v2[%llx]\n", | |
4248 | (unsigned long long) v0, | |
4249 | (unsigned long long) v1, | |
4250 | (unsigned long long) v2); | |
4251 | ||
4252 | if (unlikely(!v0 && !v1 && !v2)) { | |
4253 | spin_unlock_irqrestore(&np->lock, flags); | |
4254 | return IRQ_NONE; | |
4255 | } | |
4256 | ||
4257 | if (unlikely((v0 & ((u64)1 << LDN_MIF)) || v1 || v2)) { | |
406f353c | 4258 | int err = niu_slowpath_interrupt(np, lp, v0, v1, v2); |
a3138df9 DM |
4259 | if (err) |
4260 | goto out; | |
4261 | } | |
4262 | if (likely(v0 & ~((u64)1 << LDN_MIF))) | |
4263 | niu_schedule_napi(np, lp, v0, v1, v2); | |
4264 | else | |
4265 | niu_ldg_rearm(np, lp, 1); | |
4266 | out: | |
4267 | spin_unlock_irqrestore(&np->lock, flags); | |
4268 | ||
4269 | return IRQ_HANDLED; | |
4270 | } | |
4271 | ||
4272 | static void niu_free_rx_ring_info(struct niu *np, struct rx_ring_info *rp) | |
4273 | { | |
4274 | if (rp->mbox) { | |
4275 | np->ops->free_coherent(np->device, | |
4276 | sizeof(struct rxdma_mailbox), | |
4277 | rp->mbox, rp->mbox_dma); | |
4278 | rp->mbox = NULL; | |
4279 | } | |
4280 | if (rp->rcr) { | |
4281 | np->ops->free_coherent(np->device, | |
4282 | MAX_RCR_RING_SIZE * sizeof(__le64), | |
4283 | rp->rcr, rp->rcr_dma); | |
4284 | rp->rcr = NULL; | |
4285 | rp->rcr_table_size = 0; | |
4286 | rp->rcr_index = 0; | |
4287 | } | |
4288 | if (rp->rbr) { | |
4289 | niu_rbr_free(np, rp); | |
4290 | ||
4291 | np->ops->free_coherent(np->device, | |
4292 | MAX_RBR_RING_SIZE * sizeof(__le32), | |
4293 | rp->rbr, rp->rbr_dma); | |
4294 | rp->rbr = NULL; | |
4295 | rp->rbr_table_size = 0; | |
4296 | rp->rbr_index = 0; | |
4297 | } | |
4298 | kfree(rp->rxhash); | |
4299 | rp->rxhash = NULL; | |
4300 | } | |
4301 | ||
4302 | static void niu_free_tx_ring_info(struct niu *np, struct tx_ring_info *rp) | |
4303 | { | |
4304 | if (rp->mbox) { | |
4305 | np->ops->free_coherent(np->device, | |
4306 | sizeof(struct txdma_mailbox), | |
4307 | rp->mbox, rp->mbox_dma); | |
4308 | rp->mbox = NULL; | |
4309 | } | |
4310 | if (rp->descr) { | |
4311 | int i; | |
4312 | ||
4313 | for (i = 0; i < MAX_TX_RING_SIZE; i++) { | |
4314 | if (rp->tx_buffs[i].skb) | |
4315 | (void) release_tx_packet(np, rp, i); | |
4316 | } | |
4317 | ||
4318 | np->ops->free_coherent(np->device, | |
4319 | MAX_TX_RING_SIZE * sizeof(__le64), | |
4320 | rp->descr, rp->descr_dma); | |
4321 | rp->descr = NULL; | |
4322 | rp->pending = 0; | |
4323 | rp->prod = 0; | |
4324 | rp->cons = 0; | |
4325 | rp->wrap_bit = 0; | |
4326 | } | |
4327 | } | |
4328 | ||
4329 | static void niu_free_channels(struct niu *np) | |
4330 | { | |
4331 | int i; | |
4332 | ||
4333 | if (np->rx_rings) { | |
4334 | for (i = 0; i < np->num_rx_rings; i++) { | |
4335 | struct rx_ring_info *rp = &np->rx_rings[i]; | |
4336 | ||
4337 | niu_free_rx_ring_info(np, rp); | |
4338 | } | |
4339 | kfree(np->rx_rings); | |
4340 | np->rx_rings = NULL; | |
4341 | np->num_rx_rings = 0; | |
4342 | } | |
4343 | ||
4344 | if (np->tx_rings) { | |
4345 | for (i = 0; i < np->num_tx_rings; i++) { | |
4346 | struct tx_ring_info *rp = &np->tx_rings[i]; | |
4347 | ||
4348 | niu_free_tx_ring_info(np, rp); | |
4349 | } | |
4350 | kfree(np->tx_rings); | |
4351 | np->tx_rings = NULL; | |
4352 | np->num_tx_rings = 0; | |
4353 | } | |
4354 | } | |
4355 | ||
4356 | static int niu_alloc_rx_ring_info(struct niu *np, | |
4357 | struct rx_ring_info *rp) | |
4358 | { | |
4359 | BUILD_BUG_ON(sizeof(struct rxdma_mailbox) != 64); | |
4360 | ||
4361 | rp->rxhash = kzalloc(MAX_RBR_RING_SIZE * sizeof(struct page *), | |
4362 | GFP_KERNEL); | |
4363 | if (!rp->rxhash) | |
4364 | return -ENOMEM; | |
4365 | ||
4366 | rp->mbox = np->ops->alloc_coherent(np->device, | |
4367 | sizeof(struct rxdma_mailbox), | |
4368 | &rp->mbox_dma, GFP_KERNEL); | |
4369 | if (!rp->mbox) | |
4370 | return -ENOMEM; | |
4371 | if ((unsigned long)rp->mbox & (64UL - 1)) { | |
4372 | dev_err(np->device, PFX "%s: Coherent alloc gives misaligned " | |
4373 | "RXDMA mailbox %p\n", np->dev->name, rp->mbox); | |
4374 | return -EINVAL; | |
4375 | } | |
4376 | ||
4377 | rp->rcr = np->ops->alloc_coherent(np->device, | |
4378 | MAX_RCR_RING_SIZE * sizeof(__le64), | |
4379 | &rp->rcr_dma, GFP_KERNEL); | |
4380 | if (!rp->rcr) | |
4381 | return -ENOMEM; | |
4382 | if ((unsigned long)rp->rcr & (64UL - 1)) { | |
4383 | dev_err(np->device, PFX "%s: Coherent alloc gives misaligned " | |
4384 | "RXDMA RCR table %p\n", np->dev->name, rp->rcr); | |
4385 | return -EINVAL; | |
4386 | } | |
4387 | rp->rcr_table_size = MAX_RCR_RING_SIZE; | |
4388 | rp->rcr_index = 0; | |
4389 | ||
4390 | rp->rbr = np->ops->alloc_coherent(np->device, | |
4391 | MAX_RBR_RING_SIZE * sizeof(__le32), | |
4392 | &rp->rbr_dma, GFP_KERNEL); | |
4393 | if (!rp->rbr) | |
4394 | return -ENOMEM; | |
4395 | if ((unsigned long)rp->rbr & (64UL - 1)) { | |
4396 | dev_err(np->device, PFX "%s: Coherent alloc gives misaligned " | |
4397 | "RXDMA RBR table %p\n", np->dev->name, rp->rbr); | |
4398 | return -EINVAL; | |
4399 | } | |
4400 | rp->rbr_table_size = MAX_RBR_RING_SIZE; | |
4401 | rp->rbr_index = 0; | |
4402 | rp->rbr_pending = 0; | |
4403 | ||
4404 | return 0; | |
4405 | } | |
4406 | ||
4407 | static void niu_set_max_burst(struct niu *np, struct tx_ring_info *rp) | |
4408 | { | |
4409 | int mtu = np->dev->mtu; | |
4410 | ||
4411 | /* These values are recommended by the HW designers for fair | |
4412 | * utilization of DRR amongst the rings. | |
4413 | */ | |
4414 | rp->max_burst = mtu + 32; | |
4415 | if (rp->max_burst > 4096) | |
4416 | rp->max_burst = 4096; | |
4417 | } | |
4418 | ||
4419 | static int niu_alloc_tx_ring_info(struct niu *np, | |
4420 | struct tx_ring_info *rp) | |
4421 | { | |
4422 | BUILD_BUG_ON(sizeof(struct txdma_mailbox) != 64); | |
4423 | ||
4424 | rp->mbox = np->ops->alloc_coherent(np->device, | |
4425 | sizeof(struct txdma_mailbox), | |
4426 | &rp->mbox_dma, GFP_KERNEL); | |
4427 | if (!rp->mbox) | |
4428 | return -ENOMEM; | |
4429 | if ((unsigned long)rp->mbox & (64UL - 1)) { | |
4430 | dev_err(np->device, PFX "%s: Coherent alloc gives misaligned " | |
4431 | "TXDMA mailbox %p\n", np->dev->name, rp->mbox); | |
4432 | return -EINVAL; | |
4433 | } | |
4434 | ||
4435 | rp->descr = np->ops->alloc_coherent(np->device, | |
4436 | MAX_TX_RING_SIZE * sizeof(__le64), | |
4437 | &rp->descr_dma, GFP_KERNEL); | |
4438 | if (!rp->descr) | |
4439 | return -ENOMEM; | |
4440 | if ((unsigned long)rp->descr & (64UL - 1)) { | |
4441 | dev_err(np->device, PFX "%s: Coherent alloc gives misaligned " | |
4442 | "TXDMA descr table %p\n", np->dev->name, rp->descr); | |
4443 | return -EINVAL; | |
4444 | } | |
4445 | ||
4446 | rp->pending = MAX_TX_RING_SIZE; | |
4447 | rp->prod = 0; | |
4448 | rp->cons = 0; | |
4449 | rp->wrap_bit = 0; | |
4450 | ||
4451 | /* XXX make these configurable... XXX */ | |
4452 | rp->mark_freq = rp->pending / 4; | |
4453 | ||
4454 | niu_set_max_burst(np, rp); | |
4455 | ||
4456 | return 0; | |
4457 | } | |
4458 | ||
4459 | static void niu_size_rbr(struct niu *np, struct rx_ring_info *rp) | |
4460 | { | |
81429973 | 4461 | u16 bss; |
a3138df9 | 4462 | |
81429973 | 4463 | bss = min(PAGE_SHIFT, 15); |
a3138df9 | 4464 | |
81429973 OJ |
4465 | rp->rbr_block_size = 1 << bss; |
4466 | rp->rbr_blocks_per_page = 1 << (PAGE_SHIFT-bss); | |
a3138df9 DM |
4467 | |
4468 | rp->rbr_sizes[0] = 256; | |
4469 | rp->rbr_sizes[1] = 1024; | |
4470 | if (np->dev->mtu > ETH_DATA_LEN) { | |
4471 | switch (PAGE_SIZE) { | |
4472 | case 4 * 1024: | |
4473 | rp->rbr_sizes[2] = 4096; | |
4474 | break; | |
4475 | ||
4476 | default: | |
4477 | rp->rbr_sizes[2] = 8192; | |
4478 | break; | |
4479 | } | |
4480 | } else { | |
4481 | rp->rbr_sizes[2] = 2048; | |
4482 | } | |
4483 | rp->rbr_sizes[3] = rp->rbr_block_size; | |
4484 | } | |
4485 | ||
4486 | static int niu_alloc_channels(struct niu *np) | |
4487 | { | |
4488 | struct niu_parent *parent = np->parent; | |
4489 | int first_rx_channel, first_tx_channel; | |
4490 | int i, port, err; | |
4491 | ||
4492 | port = np->port; | |
4493 | first_rx_channel = first_tx_channel = 0; | |
4494 | for (i = 0; i < port; i++) { | |
4495 | first_rx_channel += parent->rxchan_per_port[i]; | |
4496 | first_tx_channel += parent->txchan_per_port[i]; | |
4497 | } | |
4498 | ||
4499 | np->num_rx_rings = parent->rxchan_per_port[port]; | |
4500 | np->num_tx_rings = parent->txchan_per_port[port]; | |
4501 | ||
b4c21639 DM |
4502 | np->dev->real_num_tx_queues = np->num_tx_rings; |
4503 | ||
a3138df9 DM |
4504 | np->rx_rings = kzalloc(np->num_rx_rings * sizeof(struct rx_ring_info), |
4505 | GFP_KERNEL); | |
4506 | err = -ENOMEM; | |
4507 | if (!np->rx_rings) | |
4508 | goto out_err; | |
4509 | ||
4510 | for (i = 0; i < np->num_rx_rings; i++) { | |
4511 | struct rx_ring_info *rp = &np->rx_rings[i]; | |
4512 | ||
4513 | rp->np = np; | |
4514 | rp->rx_channel = first_rx_channel + i; | |
4515 | ||
4516 | err = niu_alloc_rx_ring_info(np, rp); | |
4517 | if (err) | |
4518 | goto out_err; | |
4519 | ||
4520 | niu_size_rbr(np, rp); | |
4521 | ||
4522 | /* XXX better defaults, configurable, etc... XXX */ | |
4523 | rp->nonsyn_window = 64; | |
4524 | rp->nonsyn_threshold = rp->rcr_table_size - 64; | |
4525 | rp->syn_window = 64; | |
4526 | rp->syn_threshold = rp->rcr_table_size - 64; | |
4527 | rp->rcr_pkt_threshold = 16; | |
4528 | rp->rcr_timeout = 8; | |
4529 | rp->rbr_kick_thresh = RBR_REFILL_MIN; | |
4530 | if (rp->rbr_kick_thresh < rp->rbr_blocks_per_page) | |
4531 | rp->rbr_kick_thresh = rp->rbr_blocks_per_page; | |
4532 | ||
4533 | err = niu_rbr_fill(np, rp, GFP_KERNEL); | |
4534 | if (err) | |
4535 | return err; | |
4536 | } | |
4537 | ||
4538 | np->tx_rings = kzalloc(np->num_tx_rings * sizeof(struct tx_ring_info), | |
4539 | GFP_KERNEL); | |
4540 | err = -ENOMEM; | |
4541 | if (!np->tx_rings) | |
4542 | goto out_err; | |
4543 | ||
4544 | for (i = 0; i < np->num_tx_rings; i++) { | |
4545 | struct tx_ring_info *rp = &np->tx_rings[i]; | |
4546 | ||
4547 | rp->np = np; | |
4548 | rp->tx_channel = first_tx_channel + i; | |
4549 | ||
4550 | err = niu_alloc_tx_ring_info(np, rp); | |
4551 | if (err) | |
4552 | goto out_err; | |
4553 | } | |
4554 | ||
4555 | return 0; | |
4556 | ||
4557 | out_err: | |
4558 | niu_free_channels(np); | |
4559 | return err; | |
4560 | } | |
4561 | ||
4562 | static int niu_tx_cs_sng_poll(struct niu *np, int channel) | |
4563 | { | |
4564 | int limit = 1000; | |
4565 | ||
4566 | while (--limit > 0) { | |
4567 | u64 val = nr64(TX_CS(channel)); | |
4568 | if (val & TX_CS_SNG_STATE) | |
4569 | return 0; | |
4570 | } | |
4571 | return -ENODEV; | |
4572 | } | |
4573 | ||
4574 | static int niu_tx_channel_stop(struct niu *np, int channel) | |
4575 | { | |
4576 | u64 val = nr64(TX_CS(channel)); | |
4577 | ||
4578 | val |= TX_CS_STOP_N_GO; | |
4579 | nw64(TX_CS(channel), val); | |
4580 | ||
4581 | return niu_tx_cs_sng_poll(np, channel); | |
4582 | } | |
4583 | ||
4584 | static int niu_tx_cs_reset_poll(struct niu *np, int channel) | |
4585 | { | |
4586 | int limit = 1000; | |
4587 | ||
4588 | while (--limit > 0) { | |
4589 | u64 val = nr64(TX_CS(channel)); | |
4590 | if (!(val & TX_CS_RST)) | |
4591 | return 0; | |
4592 | } | |
4593 | return -ENODEV; | |
4594 | } | |
4595 | ||
4596 | static int niu_tx_channel_reset(struct niu *np, int channel) | |
4597 | { | |
4598 | u64 val = nr64(TX_CS(channel)); | |
4599 | int err; | |
4600 | ||
4601 | val |= TX_CS_RST; | |
4602 | nw64(TX_CS(channel), val); | |
4603 | ||
4604 | err = niu_tx_cs_reset_poll(np, channel); | |
4605 | if (!err) | |
4606 | nw64(TX_RING_KICK(channel), 0); | |
4607 | ||
4608 | return err; | |
4609 | } | |
4610 | ||
4611 | static int niu_tx_channel_lpage_init(struct niu *np, int channel) | |
4612 | { | |
4613 | u64 val; | |
4614 | ||
4615 | nw64(TX_LOG_MASK1(channel), 0); | |
4616 | nw64(TX_LOG_VAL1(channel), 0); | |
4617 | nw64(TX_LOG_MASK2(channel), 0); | |
4618 | nw64(TX_LOG_VAL2(channel), 0); | |
4619 | nw64(TX_LOG_PAGE_RELO1(channel), 0); | |
4620 | nw64(TX_LOG_PAGE_RELO2(channel), 0); | |
4621 | nw64(TX_LOG_PAGE_HDL(channel), 0); | |
4622 | ||
4623 | val = (u64)np->port << TX_LOG_PAGE_VLD_FUNC_SHIFT; | |
4624 | val |= (TX_LOG_PAGE_VLD_PAGE0 | TX_LOG_PAGE_VLD_PAGE1); | |
4625 | nw64(TX_LOG_PAGE_VLD(channel), val); | |
4626 | ||
4627 | /* XXX TXDMA 32bit mode? XXX */ | |
4628 | ||
4629 | return 0; | |
4630 | } | |
4631 | ||
4632 | static void niu_txc_enable_port(struct niu *np, int on) | |
4633 | { | |
4634 | unsigned long flags; | |
4635 | u64 val, mask; | |
4636 | ||
4637 | niu_lock_parent(np, flags); | |
4638 | val = nr64(TXC_CONTROL); | |
4639 | mask = (u64)1 << np->port; | |
4640 | if (on) { | |
4641 | val |= TXC_CONTROL_ENABLE | mask; | |
4642 | } else { | |
4643 | val &= ~mask; | |
4644 | if ((val & ~TXC_CONTROL_ENABLE) == 0) | |
4645 | val &= ~TXC_CONTROL_ENABLE; | |
4646 | } | |
4647 | nw64(TXC_CONTROL, val); | |
4648 | niu_unlock_parent(np, flags); | |
4649 | } | |
4650 | ||
4651 | static void niu_txc_set_imask(struct niu *np, u64 imask) | |
4652 | { | |
4653 | unsigned long flags; | |
4654 | u64 val; | |
4655 | ||
4656 | niu_lock_parent(np, flags); | |
4657 | val = nr64(TXC_INT_MASK); | |
4658 | val &= ~TXC_INT_MASK_VAL(np->port); | |
4659 | val |= (imask << TXC_INT_MASK_VAL_SHIFT(np->port)); | |
4660 | niu_unlock_parent(np, flags); | |
4661 | } | |
4662 | ||
4663 | static void niu_txc_port_dma_enable(struct niu *np, int on) | |
4664 | { | |
4665 | u64 val = 0; | |
4666 | ||
4667 | if (on) { | |
4668 | int i; | |
4669 | ||
4670 | for (i = 0; i < np->num_tx_rings; i++) | |
4671 | val |= (1 << np->tx_rings[i].tx_channel); | |
4672 | } | |
4673 | nw64(TXC_PORT_DMA(np->port), val); | |
4674 | } | |
4675 | ||
4676 | static int niu_init_one_tx_channel(struct niu *np, struct tx_ring_info *rp) | |
4677 | { | |
4678 | int err, channel = rp->tx_channel; | |
4679 | u64 val, ring_len; | |
4680 | ||
4681 | err = niu_tx_channel_stop(np, channel); | |
4682 | if (err) | |
4683 | return err; | |
4684 | ||
4685 | err = niu_tx_channel_reset(np, channel); | |
4686 | if (err) | |
4687 | return err; | |
4688 | ||
4689 | err = niu_tx_channel_lpage_init(np, channel); | |
4690 | if (err) | |
4691 | return err; | |
4692 | ||
4693 | nw64(TXC_DMA_MAX(channel), rp->max_burst); | |
4694 | nw64(TX_ENT_MSK(channel), 0); | |
4695 | ||
4696 | if (rp->descr_dma & ~(TX_RNG_CFIG_STADDR_BASE | | |
4697 | TX_RNG_CFIG_STADDR)) { | |
4698 | dev_err(np->device, PFX "%s: TX ring channel %d " | |
4699 | "DMA addr (%llx) is not aligned.\n", | |
4700 | np->dev->name, channel, | |
4701 | (unsigned long long) rp->descr_dma); | |
4702 | return -EINVAL; | |
4703 | } | |
4704 | ||
4705 | /* The length field in TX_RNG_CFIG is measured in 64-byte | |
4706 | * blocks. rp->pending is the number of TX descriptors in | |
4707 | * our ring, 8 bytes each, thus we divide by 8 bytes more | |
4708 | * to get the proper value the chip wants. | |
4709 | */ | |
4710 | ring_len = (rp->pending / 8); | |
4711 | ||
4712 | val = ((ring_len << TX_RNG_CFIG_LEN_SHIFT) | | |
4713 | rp->descr_dma); | |
4714 | nw64(TX_RNG_CFIG(channel), val); | |
4715 | ||
4716 | if (((rp->mbox_dma >> 32) & ~TXDMA_MBH_MBADDR) || | |
4717 | ((u32)rp->mbox_dma & ~TXDMA_MBL_MBADDR)) { | |
4718 | dev_err(np->device, PFX "%s: TX ring channel %d " | |
4719 | "MBOX addr (%llx) is has illegal bits.\n", | |
4720 | np->dev->name, channel, | |
4721 | (unsigned long long) rp->mbox_dma); | |
4722 | return -EINVAL; | |
4723 | } | |
4724 | nw64(TXDMA_MBH(channel), rp->mbox_dma >> 32); | |
4725 | nw64(TXDMA_MBL(channel), rp->mbox_dma & TXDMA_MBL_MBADDR); | |
4726 | ||
4727 | nw64(TX_CS(channel), 0); | |
4728 | ||
4729 | rp->last_pkt_cnt = 0; | |
4730 | ||
4731 | return 0; | |
4732 | } | |
4733 | ||
4734 | static void niu_init_rdc_groups(struct niu *np) | |
4735 | { | |
4736 | struct niu_rdc_tables *tp = &np->parent->rdc_group_cfg[np->port]; | |
4737 | int i, first_table_num = tp->first_table_num; | |
4738 | ||
4739 | for (i = 0; i < tp->num_tables; i++) { | |
4740 | struct rdc_table *tbl = &tp->tables[i]; | |
4741 | int this_table = first_table_num + i; | |
4742 | int slot; | |
4743 | ||
4744 | for (slot = 0; slot < NIU_RDC_TABLE_SLOTS; slot++) | |
4745 | nw64(RDC_TBL(this_table, slot), | |
4746 | tbl->rxdma_channel[slot]); | |
4747 | } | |
4748 | ||
4749 | nw64(DEF_RDC(np->port), np->parent->rdc_default[np->port]); | |
4750 | } | |
4751 | ||
4752 | static void niu_init_drr_weight(struct niu *np) | |
4753 | { | |
4754 | int type = phy_decode(np->parent->port_phy, np->port); | |
4755 | u64 val; | |
4756 | ||
4757 | switch (type) { | |
4758 | case PORT_TYPE_10G: | |
4759 | val = PT_DRR_WEIGHT_DEFAULT_10G; | |
4760 | break; | |
4761 | ||
4762 | case PORT_TYPE_1G: | |
4763 | default: | |
4764 | val = PT_DRR_WEIGHT_DEFAULT_1G; | |
4765 | break; | |
4766 | } | |
4767 | nw64(PT_DRR_WT(np->port), val); | |
4768 | } | |
4769 | ||
4770 | static int niu_init_hostinfo(struct niu *np) | |
4771 | { | |
4772 | struct niu_parent *parent = np->parent; | |
4773 | struct niu_rdc_tables *tp = &parent->rdc_group_cfg[np->port]; | |
4774 | int i, err, num_alt = niu_num_alt_addr(np); | |
4775 | int first_rdc_table = tp->first_table_num; | |
4776 | ||
4777 | err = niu_set_primary_mac_rdc_table(np, first_rdc_table, 1); | |
4778 | if (err) | |
4779 | return err; | |
4780 | ||
4781 | err = niu_set_multicast_mac_rdc_table(np, first_rdc_table, 1); | |
4782 | if (err) | |
4783 | return err; | |
4784 | ||
4785 | for (i = 0; i < num_alt; i++) { | |
4786 | err = niu_set_alt_mac_rdc_table(np, i, first_rdc_table, 1); | |
4787 | if (err) | |
4788 | return err; | |
4789 | } | |
4790 | ||
4791 | return 0; | |
4792 | } | |
4793 | ||
4794 | static int niu_rx_channel_reset(struct niu *np, int channel) | |
4795 | { | |
4796 | return niu_set_and_wait_clear(np, RXDMA_CFIG1(channel), | |
4797 | RXDMA_CFIG1_RST, 1000, 10, | |
4798 | "RXDMA_CFIG1"); | |
4799 | } | |
4800 | ||
4801 | static int niu_rx_channel_lpage_init(struct niu *np, int channel) | |
4802 | { | |
4803 | u64 val; | |
4804 | ||
4805 | nw64(RX_LOG_MASK1(channel), 0); | |
4806 | nw64(RX_LOG_VAL1(channel), 0); | |
4807 | nw64(RX_LOG_MASK2(channel), 0); | |
4808 | nw64(RX_LOG_VAL2(channel), 0); | |
4809 | nw64(RX_LOG_PAGE_RELO1(channel), 0); | |
4810 | nw64(RX_LOG_PAGE_RELO2(channel), 0); | |
4811 | nw64(RX_LOG_PAGE_HDL(channel), 0); | |
4812 | ||
4813 | val = (u64)np->port << RX_LOG_PAGE_VLD_FUNC_SHIFT; | |
4814 | val |= (RX_LOG_PAGE_VLD_PAGE0 | RX_LOG_PAGE_VLD_PAGE1); | |
4815 | nw64(RX_LOG_PAGE_VLD(channel), val); | |
4816 | ||
4817 | return 0; | |
4818 | } | |
4819 | ||
4820 | static void niu_rx_channel_wred_init(struct niu *np, struct rx_ring_info *rp) | |
4821 | { | |
4822 | u64 val; | |
4823 | ||
4824 | val = (((u64)rp->nonsyn_window << RDC_RED_PARA_WIN_SHIFT) | | |
4825 | ((u64)rp->nonsyn_threshold << RDC_RED_PARA_THRE_SHIFT) | | |
4826 | ((u64)rp->syn_window << RDC_RED_PARA_WIN_SYN_SHIFT) | | |
4827 | ((u64)rp->syn_threshold << RDC_RED_PARA_THRE_SYN_SHIFT)); | |
4828 | nw64(RDC_RED_PARA(rp->rx_channel), val); | |
4829 | } | |
4830 | ||
4831 | static int niu_compute_rbr_cfig_b(struct rx_ring_info *rp, u64 *ret) | |
4832 | { | |
4833 | u64 val = 0; | |
4834 | ||
4835 | switch (rp->rbr_block_size) { | |
4836 | case 4 * 1024: | |
4837 | val |= (RBR_BLKSIZE_4K << RBR_CFIG_B_BLKSIZE_SHIFT); | |
4838 | break; | |
4839 | case 8 * 1024: | |
4840 | val |= (RBR_BLKSIZE_8K << RBR_CFIG_B_BLKSIZE_SHIFT); | |
4841 | break; | |
4842 | case 16 * 1024: | |
4843 | val |= (RBR_BLKSIZE_16K << RBR_CFIG_B_BLKSIZE_SHIFT); | |
4844 | break; | |
4845 | case 32 * 1024: | |
4846 | val |= (RBR_BLKSIZE_32K << RBR_CFIG_B_BLKSIZE_SHIFT); | |
4847 | break; | |
4848 | default: | |
4849 | return -EINVAL; | |
4850 | } | |
4851 | val |= RBR_CFIG_B_VLD2; | |
4852 | switch (rp->rbr_sizes[2]) { | |
4853 | case 2 * 1024: | |
4854 | val |= (RBR_BUFSZ2_2K << RBR_CFIG_B_BUFSZ2_SHIFT); | |
4855 | break; | |
4856 | case 4 * 1024: | |
4857 | val |= (RBR_BUFSZ2_4K << RBR_CFIG_B_BUFSZ2_SHIFT); | |
4858 | break; | |
4859 | case 8 * 1024: | |
4860 | val |= (RBR_BUFSZ2_8K << RBR_CFIG_B_BUFSZ2_SHIFT); | |
4861 | break; | |
4862 | case 16 * 1024: | |
4863 | val |= (RBR_BUFSZ2_16K << RBR_CFIG_B_BUFSZ2_SHIFT); | |
4864 | break; | |
4865 | ||
4866 | default: | |
4867 | return -EINVAL; | |
4868 | } | |
4869 | val |= RBR_CFIG_B_VLD1; | |
4870 | switch (rp->rbr_sizes[1]) { | |
4871 | case 1 * 1024: | |
4872 | val |= (RBR_BUFSZ1_1K << RBR_CFIG_B_BUFSZ1_SHIFT); | |
4873 | break; | |
4874 | case 2 * 1024: | |
4875 | val |= (RBR_BUFSZ1_2K << RBR_CFIG_B_BUFSZ1_SHIFT); | |
4876 | break; | |
4877 | case 4 * 1024: | |
4878 | val |= (RBR_BUFSZ1_4K << RBR_CFIG_B_BUFSZ1_SHIFT); | |
4879 | break; | |
4880 | case 8 * 1024: | |
4881 | val |= (RBR_BUFSZ1_8K << RBR_CFIG_B_BUFSZ1_SHIFT); | |
4882 | break; | |
4883 | ||
4884 | default: | |
4885 | return -EINVAL; | |
4886 | } | |
4887 | val |= RBR_CFIG_B_VLD0; | |
4888 | switch (rp->rbr_sizes[0]) { | |
4889 | case 256: | |
4890 | val |= (RBR_BUFSZ0_256 << RBR_CFIG_B_BUFSZ0_SHIFT); | |
4891 | break; | |
4892 | case 512: | |
4893 | val |= (RBR_BUFSZ0_512 << RBR_CFIG_B_BUFSZ0_SHIFT); | |
4894 | break; | |
4895 | case 1 * 1024: | |
4896 | val |= (RBR_BUFSZ0_1K << RBR_CFIG_B_BUFSZ0_SHIFT); | |
4897 | break; | |
4898 | case 2 * 1024: | |
4899 | val |= (RBR_BUFSZ0_2K << RBR_CFIG_B_BUFSZ0_SHIFT); | |
4900 | break; | |
4901 | ||
4902 | default: | |
4903 | return -EINVAL; | |
4904 | } | |
4905 | ||
4906 | *ret = val; | |
4907 | return 0; | |
4908 | } | |
4909 | ||
4910 | static int niu_enable_rx_channel(struct niu *np, int channel, int on) | |
4911 | { | |
4912 | u64 val = nr64(RXDMA_CFIG1(channel)); | |
4913 | int limit; | |
4914 | ||
4915 | if (on) | |
4916 | val |= RXDMA_CFIG1_EN; | |
4917 | else | |
4918 | val &= ~RXDMA_CFIG1_EN; | |
4919 | nw64(RXDMA_CFIG1(channel), val); | |
4920 | ||
4921 | limit = 1000; | |
4922 | while (--limit > 0) { | |
4923 | if (nr64(RXDMA_CFIG1(channel)) & RXDMA_CFIG1_QST) | |
4924 | break; | |
4925 | udelay(10); | |
4926 | } | |
4927 | if (limit <= 0) | |
4928 | return -ENODEV; | |
4929 | return 0; | |
4930 | } | |
4931 | ||
4932 | static int niu_init_one_rx_channel(struct niu *np, struct rx_ring_info *rp) | |
4933 | { | |
4934 | int err, channel = rp->rx_channel; | |
4935 | u64 val; | |
4936 | ||
4937 | err = niu_rx_channel_reset(np, channel); | |
4938 | if (err) | |
4939 | return err; | |
4940 | ||
4941 | err = niu_rx_channel_lpage_init(np, channel); | |
4942 | if (err) | |
4943 | return err; | |
4944 | ||
4945 | niu_rx_channel_wred_init(np, rp); | |
4946 | ||
4947 | nw64(RX_DMA_ENT_MSK(channel), RX_DMA_ENT_MSK_RBR_EMPTY); | |
4948 | nw64(RX_DMA_CTL_STAT(channel), | |
4949 | (RX_DMA_CTL_STAT_MEX | | |
4950 | RX_DMA_CTL_STAT_RCRTHRES | | |
4951 | RX_DMA_CTL_STAT_RCRTO | | |
4952 | RX_DMA_CTL_STAT_RBR_EMPTY)); | |
4953 | nw64(RXDMA_CFIG1(channel), rp->mbox_dma >> 32); | |
4954 | nw64(RXDMA_CFIG2(channel), (rp->mbox_dma & 0x00000000ffffffc0)); | |
4955 | nw64(RBR_CFIG_A(channel), | |
4956 | ((u64)rp->rbr_table_size << RBR_CFIG_A_LEN_SHIFT) | | |
4957 | (rp->rbr_dma & (RBR_CFIG_A_STADDR_BASE | RBR_CFIG_A_STADDR))); | |
4958 | err = niu_compute_rbr_cfig_b(rp, &val); | |
4959 | if (err) | |
4960 | return err; | |
4961 | nw64(RBR_CFIG_B(channel), val); | |
4962 | nw64(RCRCFIG_A(channel), | |
4963 | ((u64)rp->rcr_table_size << RCRCFIG_A_LEN_SHIFT) | | |
4964 | (rp->rcr_dma & (RCRCFIG_A_STADDR_BASE | RCRCFIG_A_STADDR))); | |
4965 | nw64(RCRCFIG_B(channel), | |
4966 | ((u64)rp->rcr_pkt_threshold << RCRCFIG_B_PTHRES_SHIFT) | | |
4967 | RCRCFIG_B_ENTOUT | | |
4968 | ((u64)rp->rcr_timeout << RCRCFIG_B_TIMEOUT_SHIFT)); | |
4969 | ||
4970 | err = niu_enable_rx_channel(np, channel, 1); | |
4971 | if (err) | |
4972 | return err; | |
4973 | ||
4974 | nw64(RBR_KICK(channel), rp->rbr_index); | |
4975 | ||
4976 | val = nr64(RX_DMA_CTL_STAT(channel)); | |
4977 | val |= RX_DMA_CTL_STAT_RBR_EMPTY; | |
4978 | nw64(RX_DMA_CTL_STAT(channel), val); | |
4979 | ||
4980 | return 0; | |
4981 | } | |
4982 | ||
4983 | static int niu_init_rx_channels(struct niu *np) | |
4984 | { | |
4985 | unsigned long flags; | |
4986 | u64 seed = jiffies_64; | |
4987 | int err, i; | |
4988 | ||
4989 | niu_lock_parent(np, flags); | |
4990 | nw64(RX_DMA_CK_DIV, np->parent->rxdma_clock_divider); | |
4991 | nw64(RED_RAN_INIT, RED_RAN_INIT_OPMODE | (seed & RED_RAN_INIT_VAL)); | |
4992 | niu_unlock_parent(np, flags); | |
4993 | ||
4994 | /* XXX RXDMA 32bit mode? XXX */ | |
4995 | ||
4996 | niu_init_rdc_groups(np); | |
4997 | niu_init_drr_weight(np); | |
4998 | ||
4999 | err = niu_init_hostinfo(np); | |
5000 | if (err) | |
5001 | return err; | |
5002 | ||
5003 | for (i = 0; i < np->num_rx_rings; i++) { | |
5004 | struct rx_ring_info *rp = &np->rx_rings[i]; | |
5005 | ||
5006 | err = niu_init_one_rx_channel(np, rp); | |
5007 | if (err) | |
5008 | return err; | |
5009 | } | |
5010 | ||
5011 | return 0; | |
5012 | } | |
5013 | ||
5014 | static int niu_set_ip_frag_rule(struct niu *np) | |
5015 | { | |
5016 | struct niu_parent *parent = np->parent; | |
5017 | struct niu_classifier *cp = &np->clas; | |
5018 | struct niu_tcam_entry *tp; | |
5019 | int index, err; | |
5020 | ||
2d96cf8c | 5021 | index = cp->tcam_top; |
a3138df9 DM |
5022 | tp = &parent->tcam[index]; |
5023 | ||
5024 | /* Note that the noport bit is the same in both ipv4 and | |
5025 | * ipv6 format TCAM entries. | |
5026 | */ | |
5027 | memset(tp, 0, sizeof(*tp)); | |
5028 | tp->key[1] = TCAM_V4KEY1_NOPORT; | |
5029 | tp->key_mask[1] = TCAM_V4KEY1_NOPORT; | |
5030 | tp->assoc_data = (TCAM_ASSOCDATA_TRES_USE_OFFSET | | |
5031 | ((u64)0 << TCAM_ASSOCDATA_OFFSET_SHIFT)); | |
5032 | err = tcam_write(np, index, tp->key, tp->key_mask); | |
5033 | if (err) | |
5034 | return err; | |
5035 | err = tcam_assoc_write(np, index, tp->assoc_data); | |
5036 | if (err) | |
5037 | return err; | |
2d96cf8c SB |
5038 | tp->valid = 1; |
5039 | cp->tcam_valid_entries++; | |
a3138df9 DM |
5040 | |
5041 | return 0; | |
5042 | } | |
5043 | ||
5044 | static int niu_init_classifier_hw(struct niu *np) | |
5045 | { | |
5046 | struct niu_parent *parent = np->parent; | |
5047 | struct niu_classifier *cp = &np->clas; | |
5048 | int i, err; | |
5049 | ||
5050 | nw64(H1POLY, cp->h1_init); | |
5051 | nw64(H2POLY, cp->h2_init); | |
5052 | ||
5053 | err = niu_init_hostinfo(np); | |
5054 | if (err) | |
5055 | return err; | |
5056 | ||
5057 | for (i = 0; i < ENET_VLAN_TBL_NUM_ENTRIES; i++) { | |
5058 | struct niu_vlan_rdc *vp = &cp->vlan_mappings[i]; | |
5059 | ||
5060 | vlan_tbl_write(np, i, np->port, | |
5061 | vp->vlan_pref, vp->rdc_num); | |
5062 | } | |
5063 | ||
5064 | for (i = 0; i < cp->num_alt_mac_mappings; i++) { | |
5065 | struct niu_altmac_rdc *ap = &cp->alt_mac_mappings[i]; | |
5066 | ||
5067 | err = niu_set_alt_mac_rdc_table(np, ap->alt_mac_num, | |
5068 | ap->rdc_num, ap->mac_pref); | |
5069 | if (err) | |
5070 | return err; | |
5071 | } | |
5072 | ||
5073 | for (i = CLASS_CODE_USER_PROG1; i <= CLASS_CODE_SCTP_IPV6; i++) { | |
5074 | int index = i - CLASS_CODE_USER_PROG1; | |
5075 | ||
5076 | err = niu_set_tcam_key(np, i, parent->tcam_key[index]); | |
5077 | if (err) | |
5078 | return err; | |
5079 | err = niu_set_flow_key(np, i, parent->flow_key[index]); | |
5080 | if (err) | |
5081 | return err; | |
5082 | } | |
5083 | ||
5084 | err = niu_set_ip_frag_rule(np); | |
5085 | if (err) | |
5086 | return err; | |
5087 | ||
5088 | tcam_enable(np, 1); | |
5089 | ||
5090 | return 0; | |
5091 | } | |
5092 | ||
5093 | static int niu_zcp_write(struct niu *np, int index, u64 *data) | |
5094 | { | |
5095 | nw64(ZCP_RAM_DATA0, data[0]); | |
5096 | nw64(ZCP_RAM_DATA1, data[1]); | |
5097 | nw64(ZCP_RAM_DATA2, data[2]); | |
5098 | nw64(ZCP_RAM_DATA3, data[3]); | |
5099 | nw64(ZCP_RAM_DATA4, data[4]); | |
5100 | nw64(ZCP_RAM_BE, ZCP_RAM_BE_VAL); | |
5101 | nw64(ZCP_RAM_ACC, | |
5102 | (ZCP_RAM_ACC_WRITE | | |
5103 | (0 << ZCP_RAM_ACC_ZFCID_SHIFT) | | |
5104 | (ZCP_RAM_SEL_CFIFO(np->port) << ZCP_RAM_ACC_RAM_SEL_SHIFT))); | |
5105 | ||
5106 | return niu_wait_bits_clear(np, ZCP_RAM_ACC, ZCP_RAM_ACC_BUSY, | |
5107 | 1000, 100); | |
5108 | } | |
5109 | ||
5110 | static int niu_zcp_read(struct niu *np, int index, u64 *data) | |
5111 | { | |
5112 | int err; | |
5113 | ||
5114 | err = niu_wait_bits_clear(np, ZCP_RAM_ACC, ZCP_RAM_ACC_BUSY, | |
5115 | 1000, 100); | |
5116 | if (err) { | |
5117 | dev_err(np->device, PFX "%s: ZCP read busy won't clear, " | |
5118 | "ZCP_RAM_ACC[%llx]\n", np->dev->name, | |
5119 | (unsigned long long) nr64(ZCP_RAM_ACC)); | |
5120 | return err; | |
5121 | } | |
5122 | ||
5123 | nw64(ZCP_RAM_ACC, | |
5124 | (ZCP_RAM_ACC_READ | | |
5125 | (0 << ZCP_RAM_ACC_ZFCID_SHIFT) | | |
5126 | (ZCP_RAM_SEL_CFIFO(np->port) << ZCP_RAM_ACC_RAM_SEL_SHIFT))); | |
5127 | ||
5128 | err = niu_wait_bits_clear(np, ZCP_RAM_ACC, ZCP_RAM_ACC_BUSY, | |
5129 | 1000, 100); | |
5130 | if (err) { | |
5131 | dev_err(np->device, PFX "%s: ZCP read busy2 won't clear, " | |
5132 | "ZCP_RAM_ACC[%llx]\n", np->dev->name, | |
5133 | (unsigned long long) nr64(ZCP_RAM_ACC)); | |
5134 | return err; | |
5135 | } | |
5136 | ||
5137 | data[0] = nr64(ZCP_RAM_DATA0); | |
5138 | data[1] = nr64(ZCP_RAM_DATA1); | |
5139 | data[2] = nr64(ZCP_RAM_DATA2); | |
5140 | data[3] = nr64(ZCP_RAM_DATA3); | |
5141 | data[4] = nr64(ZCP_RAM_DATA4); | |
5142 | ||
5143 | return 0; | |
5144 | } | |
5145 | ||
5146 | static void niu_zcp_cfifo_reset(struct niu *np) | |
5147 | { | |
5148 | u64 val = nr64(RESET_CFIFO); | |
5149 | ||
5150 | val |= RESET_CFIFO_RST(np->port); | |
5151 | nw64(RESET_CFIFO, val); | |
5152 | udelay(10); | |
5153 | ||
5154 | val &= ~RESET_CFIFO_RST(np->port); | |
5155 | nw64(RESET_CFIFO, val); | |
5156 | } | |
5157 | ||
5158 | static int niu_init_zcp(struct niu *np) | |
5159 | { | |
5160 | u64 data[5], rbuf[5]; | |
5161 | int i, max, err; | |
5162 | ||
5163 | if (np->parent->plat_type != PLAT_TYPE_NIU) { | |
5164 | if (np->port == 0 || np->port == 1) | |
5165 | max = ATLAS_P0_P1_CFIFO_ENTRIES; | |
5166 | else | |
5167 | max = ATLAS_P2_P3_CFIFO_ENTRIES; | |
5168 | } else | |
5169 | max = NIU_CFIFO_ENTRIES; | |
5170 | ||
5171 | data[0] = 0; | |
5172 | data[1] = 0; | |
5173 | data[2] = 0; | |
5174 | data[3] = 0; | |
5175 | data[4] = 0; | |
5176 | ||
5177 | for (i = 0; i < max; i++) { | |
5178 | err = niu_zcp_write(np, i, data); | |
5179 | if (err) | |
5180 | return err; | |
5181 | err = niu_zcp_read(np, i, rbuf); | |
5182 | if (err) | |
5183 | return err; | |
5184 | } | |
5185 | ||
5186 | niu_zcp_cfifo_reset(np); | |
5187 | nw64(CFIFO_ECC(np->port), 0); | |
5188 | nw64(ZCP_INT_STAT, ZCP_INT_STAT_ALL); | |
5189 | (void) nr64(ZCP_INT_STAT); | |
5190 | nw64(ZCP_INT_MASK, ZCP_INT_MASK_ALL); | |
5191 | ||
5192 | return 0; | |
5193 | } | |
5194 | ||
5195 | static void niu_ipp_write(struct niu *np, int index, u64 *data) | |
5196 | { | |
5197 | u64 val = nr64_ipp(IPP_CFIG); | |
5198 | ||
5199 | nw64_ipp(IPP_CFIG, val | IPP_CFIG_DFIFO_PIO_W); | |
5200 | nw64_ipp(IPP_DFIFO_WR_PTR, index); | |
5201 | nw64_ipp(IPP_DFIFO_WR0, data[0]); | |
5202 | nw64_ipp(IPP_DFIFO_WR1, data[1]); | |
5203 | nw64_ipp(IPP_DFIFO_WR2, data[2]); | |
5204 | nw64_ipp(IPP_DFIFO_WR3, data[3]); | |
5205 | nw64_ipp(IPP_DFIFO_WR4, data[4]); | |
5206 | nw64_ipp(IPP_CFIG, val & ~IPP_CFIG_DFIFO_PIO_W); | |
5207 | } | |
5208 | ||
5209 | static void niu_ipp_read(struct niu *np, int index, u64 *data) | |
5210 | { | |
5211 | nw64_ipp(IPP_DFIFO_RD_PTR, index); | |
5212 | data[0] = nr64_ipp(IPP_DFIFO_RD0); | |
5213 | data[1] = nr64_ipp(IPP_DFIFO_RD1); | |
5214 | data[2] = nr64_ipp(IPP_DFIFO_RD2); | |
5215 | data[3] = nr64_ipp(IPP_DFIFO_RD3); | |
5216 | data[4] = nr64_ipp(IPP_DFIFO_RD4); | |
5217 | } | |
5218 | ||
5219 | static int niu_ipp_reset(struct niu *np) | |
5220 | { | |
5221 | return niu_set_and_wait_clear_ipp(np, IPP_CFIG, IPP_CFIG_SOFT_RST, | |
5222 | 1000, 100, "IPP_CFIG"); | |
5223 | } | |
5224 | ||
5225 | static int niu_init_ipp(struct niu *np) | |
5226 | { | |
5227 | u64 data[5], rbuf[5], val; | |
5228 | int i, max, err; | |
5229 | ||
5230 | if (np->parent->plat_type != PLAT_TYPE_NIU) { | |
5231 | if (np->port == 0 || np->port == 1) | |
5232 | max = ATLAS_P0_P1_DFIFO_ENTRIES; | |
5233 | else | |
5234 | max = ATLAS_P2_P3_DFIFO_ENTRIES; | |
5235 | } else | |
5236 | max = NIU_DFIFO_ENTRIES; | |
5237 | ||
5238 | data[0] = 0; | |
5239 | data[1] = 0; | |
5240 | data[2] = 0; | |
5241 | data[3] = 0; | |
5242 | data[4] = 0; | |
5243 | ||
5244 | for (i = 0; i < max; i++) { | |
5245 | niu_ipp_write(np, i, data); | |
5246 | niu_ipp_read(np, i, rbuf); | |
5247 | } | |
5248 | ||
5249 | (void) nr64_ipp(IPP_INT_STAT); | |
5250 | (void) nr64_ipp(IPP_INT_STAT); | |
5251 | ||
5252 | err = niu_ipp_reset(np); | |
5253 | if (err) | |
5254 | return err; | |
5255 | ||
5256 | (void) nr64_ipp(IPP_PKT_DIS); | |
5257 | (void) nr64_ipp(IPP_BAD_CS_CNT); | |
5258 | (void) nr64_ipp(IPP_ECC); | |
5259 | ||
5260 | (void) nr64_ipp(IPP_INT_STAT); | |
5261 | ||
5262 | nw64_ipp(IPP_MSK, ~IPP_MSK_ALL); | |
5263 | ||
5264 | val = nr64_ipp(IPP_CFIG); | |
5265 | val &= ~IPP_CFIG_IP_MAX_PKT; | |
5266 | val |= (IPP_CFIG_IPP_ENABLE | | |
5267 | IPP_CFIG_DFIFO_ECC_EN | | |
5268 | IPP_CFIG_DROP_BAD_CRC | | |
5269 | IPP_CFIG_CKSUM_EN | | |
5270 | (0x1ffff << IPP_CFIG_IP_MAX_PKT_SHIFT)); | |
5271 | nw64_ipp(IPP_CFIG, val); | |
5272 | ||
5273 | return 0; | |
5274 | } | |
5275 | ||
0c3b091b | 5276 | static void niu_handle_led(struct niu *np, int status) |
a3138df9 | 5277 | { |
a3138df9 | 5278 | u64 val; |
a3138df9 DM |
5279 | val = nr64_mac(XMAC_CONFIG); |
5280 | ||
5281 | if ((np->flags & NIU_FLAGS_10G) != 0 && | |
5282 | (np->flags & NIU_FLAGS_FIBER) != 0) { | |
0c3b091b | 5283 | if (status) { |
a3138df9 DM |
5284 | val |= XMAC_CONFIG_LED_POLARITY; |
5285 | val &= ~XMAC_CONFIG_FORCE_LED_ON; | |
5286 | } else { | |
5287 | val |= XMAC_CONFIG_FORCE_LED_ON; | |
5288 | val &= ~XMAC_CONFIG_LED_POLARITY; | |
5289 | } | |
5290 | } | |
5291 | ||
0c3b091b ML |
5292 | nw64_mac(XMAC_CONFIG, val); |
5293 | } | |
5294 | ||
5295 | static void niu_init_xif_xmac(struct niu *np) | |
5296 | { | |
5297 | struct niu_link_config *lp = &np->link_config; | |
5298 | u64 val; | |
5299 | ||
5fbd7e24 MW |
5300 | if (np->flags & NIU_FLAGS_XCVR_SERDES) { |
5301 | val = nr64(MIF_CONFIG); | |
5302 | val |= MIF_CONFIG_ATCA_GE; | |
5303 | nw64(MIF_CONFIG, val); | |
5304 | } | |
5305 | ||
0c3b091b | 5306 | val = nr64_mac(XMAC_CONFIG); |
a3138df9 DM |
5307 | val &= ~XMAC_CONFIG_SEL_POR_CLK_SRC; |
5308 | ||
5309 | val |= XMAC_CONFIG_TX_OUTPUT_EN; | |
5310 | ||
5311 | if (lp->loopback_mode == LOOPBACK_MAC) { | |
5312 | val &= ~XMAC_CONFIG_SEL_POR_CLK_SRC; | |
5313 | val |= XMAC_CONFIG_LOOPBACK; | |
5314 | } else { | |
5315 | val &= ~XMAC_CONFIG_LOOPBACK; | |
5316 | } | |
5317 | ||
5318 | if (np->flags & NIU_FLAGS_10G) { | |
5319 | val &= ~XMAC_CONFIG_LFS_DISABLE; | |
5320 | } else { | |
5321 | val |= XMAC_CONFIG_LFS_DISABLE; | |
5fbd7e24 MW |
5322 | if (!(np->flags & NIU_FLAGS_FIBER) && |
5323 | !(np->flags & NIU_FLAGS_XCVR_SERDES)) | |
a3138df9 DM |
5324 | val |= XMAC_CONFIG_1G_PCS_BYPASS; |
5325 | else | |
5326 | val &= ~XMAC_CONFIG_1G_PCS_BYPASS; | |
5327 | } | |
5328 | ||
5329 | val &= ~XMAC_CONFIG_10G_XPCS_BYPASS; | |
5330 | ||
5331 | if (lp->active_speed == SPEED_100) | |
5332 | val |= XMAC_CONFIG_SEL_CLK_25MHZ; | |
5333 | else | |
5334 | val &= ~XMAC_CONFIG_SEL_CLK_25MHZ; | |
5335 | ||
5336 | nw64_mac(XMAC_CONFIG, val); | |
5337 | ||
5338 | val = nr64_mac(XMAC_CONFIG); | |
5339 | val &= ~XMAC_CONFIG_MODE_MASK; | |
5340 | if (np->flags & NIU_FLAGS_10G) { | |
5341 | val |= XMAC_CONFIG_MODE_XGMII; | |
5342 | } else { | |
38bb045d | 5343 | if (lp->active_speed == SPEED_1000) |
a3138df9 | 5344 | val |= XMAC_CONFIG_MODE_GMII; |
38bb045d CB |
5345 | else |
5346 | val |= XMAC_CONFIG_MODE_MII; | |
a3138df9 DM |
5347 | } |
5348 | ||
5349 | nw64_mac(XMAC_CONFIG, val); | |
5350 | } | |
5351 | ||
5352 | static void niu_init_xif_bmac(struct niu *np) | |
5353 | { | |
5354 | struct niu_link_config *lp = &np->link_config; | |
5355 | u64 val; | |
5356 | ||
5357 | val = BMAC_XIF_CONFIG_TX_OUTPUT_EN; | |
5358 | ||
5359 | if (lp->loopback_mode == LOOPBACK_MAC) | |
5360 | val |= BMAC_XIF_CONFIG_MII_LOOPBACK; | |
5361 | else | |
5362 | val &= ~BMAC_XIF_CONFIG_MII_LOOPBACK; | |
5363 | ||
5364 | if (lp->active_speed == SPEED_1000) | |
5365 | val |= BMAC_XIF_CONFIG_GMII_MODE; | |
5366 | else | |
5367 | val &= ~BMAC_XIF_CONFIG_GMII_MODE; | |
5368 | ||
5369 | val &= ~(BMAC_XIF_CONFIG_LINK_LED | | |
5370 | BMAC_XIF_CONFIG_LED_POLARITY); | |
5371 | ||
5372 | if (!(np->flags & NIU_FLAGS_10G) && | |
5373 | !(np->flags & NIU_FLAGS_FIBER) && | |
5374 | lp->active_speed == SPEED_100) | |
5375 | val |= BMAC_XIF_CONFIG_25MHZ_CLOCK; | |
5376 | else | |
5377 | val &= ~BMAC_XIF_CONFIG_25MHZ_CLOCK; | |
5378 | ||
5379 | nw64_mac(BMAC_XIF_CONFIG, val); | |
5380 | } | |
5381 | ||
5382 | static void niu_init_xif(struct niu *np) | |
5383 | { | |
5384 | if (np->flags & NIU_FLAGS_XMAC) | |
5385 | niu_init_xif_xmac(np); | |
5386 | else | |
5387 | niu_init_xif_bmac(np); | |
5388 | } | |
5389 | ||
5390 | static void niu_pcs_mii_reset(struct niu *np) | |
5391 | { | |
5fbd7e24 | 5392 | int limit = 1000; |
a3138df9 DM |
5393 | u64 val = nr64_pcs(PCS_MII_CTL); |
5394 | val |= PCS_MII_CTL_RST; | |
5395 | nw64_pcs(PCS_MII_CTL, val); | |
5fbd7e24 MW |
5396 | while ((--limit >= 0) && (val & PCS_MII_CTL_RST)) { |
5397 | udelay(100); | |
5398 | val = nr64_pcs(PCS_MII_CTL); | |
5399 | } | |
a3138df9 DM |
5400 | } |
5401 | ||
5402 | static void niu_xpcs_reset(struct niu *np) | |
5403 | { | |
5fbd7e24 | 5404 | int limit = 1000; |
a3138df9 DM |
5405 | u64 val = nr64_xpcs(XPCS_CONTROL1); |
5406 | val |= XPCS_CONTROL1_RESET; | |
5407 | nw64_xpcs(XPCS_CONTROL1, val); | |
5fbd7e24 MW |
5408 | while ((--limit >= 0) && (val & XPCS_CONTROL1_RESET)) { |
5409 | udelay(100); | |
5410 | val = nr64_xpcs(XPCS_CONTROL1); | |
5411 | } | |
a3138df9 DM |
5412 | } |
5413 | ||
5414 | static int niu_init_pcs(struct niu *np) | |
5415 | { | |
5416 | struct niu_link_config *lp = &np->link_config; | |
5417 | u64 val; | |
5418 | ||
5fbd7e24 MW |
5419 | switch (np->flags & (NIU_FLAGS_10G | |
5420 | NIU_FLAGS_FIBER | | |
5421 | NIU_FLAGS_XCVR_SERDES)) { | |
a3138df9 DM |
5422 | case NIU_FLAGS_FIBER: |
5423 | /* 1G fiber */ | |
5424 | nw64_pcs(PCS_CONF, PCS_CONF_MASK | PCS_CONF_ENABLE); | |
5425 | nw64_pcs(PCS_DPATH_MODE, 0); | |
5426 | niu_pcs_mii_reset(np); | |
5427 | break; | |
5428 | ||
5429 | case NIU_FLAGS_10G: | |
5430 | case NIU_FLAGS_10G | NIU_FLAGS_FIBER: | |
5fbd7e24 MW |
5431 | case NIU_FLAGS_10G | NIU_FLAGS_XCVR_SERDES: |
5432 | /* 10G SERDES */ | |
a3138df9 DM |
5433 | if (!(np->flags & NIU_FLAGS_XMAC)) |
5434 | return -EINVAL; | |
5435 | ||
5436 | /* 10G copper or fiber */ | |
5437 | val = nr64_mac(XMAC_CONFIG); | |
5438 | val &= ~XMAC_CONFIG_10G_XPCS_BYPASS; | |
5439 | nw64_mac(XMAC_CONFIG, val); | |
5440 | ||
5441 | niu_xpcs_reset(np); | |
5442 | ||
5443 | val = nr64_xpcs(XPCS_CONTROL1); | |
5444 | if (lp->loopback_mode == LOOPBACK_PHY) | |
5445 | val |= XPCS_CONTROL1_LOOPBACK; | |
5446 | else | |
5447 | val &= ~XPCS_CONTROL1_LOOPBACK; | |
5448 | nw64_xpcs(XPCS_CONTROL1, val); | |
5449 | ||
5450 | nw64_xpcs(XPCS_DESKEW_ERR_CNT, 0); | |
5451 | (void) nr64_xpcs(XPCS_SYMERR_CNT01); | |
5452 | (void) nr64_xpcs(XPCS_SYMERR_CNT23); | |
5453 | break; | |
5454 | ||
5fbd7e24 MW |
5455 | |
5456 | case NIU_FLAGS_XCVR_SERDES: | |
5457 | /* 1G SERDES */ | |
5458 | niu_pcs_mii_reset(np); | |
5459 | nw64_pcs(PCS_CONF, PCS_CONF_MASK | PCS_CONF_ENABLE); | |
5460 | nw64_pcs(PCS_DPATH_MODE, 0); | |
5461 | break; | |
5462 | ||
a3138df9 DM |
5463 | case 0: |
5464 | /* 1G copper */ | |
5fbd7e24 MW |
5465 | case NIU_FLAGS_XCVR_SERDES | NIU_FLAGS_FIBER: |
5466 | /* 1G RGMII FIBER */ | |
a3138df9 DM |
5467 | nw64_pcs(PCS_DPATH_MODE, PCS_DPATH_MODE_MII); |
5468 | niu_pcs_mii_reset(np); | |
5469 | break; | |
5470 | ||
5471 | default: | |
5472 | return -EINVAL; | |
5473 | } | |
5474 | ||
5475 | return 0; | |
5476 | } | |
5477 | ||
5478 | static int niu_reset_tx_xmac(struct niu *np) | |
5479 | { | |
5480 | return niu_set_and_wait_clear_mac(np, XTXMAC_SW_RST, | |
5481 | (XTXMAC_SW_RST_REG_RS | | |
5482 | XTXMAC_SW_RST_SOFT_RST), | |
5483 | 1000, 100, "XTXMAC_SW_RST"); | |
5484 | } | |
5485 | ||
5486 | static int niu_reset_tx_bmac(struct niu *np) | |
5487 | { | |
5488 | int limit; | |
5489 | ||
5490 | nw64_mac(BTXMAC_SW_RST, BTXMAC_SW_RST_RESET); | |
5491 | limit = 1000; | |
5492 | while (--limit >= 0) { | |
5493 | if (!(nr64_mac(BTXMAC_SW_RST) & BTXMAC_SW_RST_RESET)) | |
5494 | break; | |
5495 | udelay(100); | |
5496 | } | |
5497 | if (limit < 0) { | |
5498 | dev_err(np->device, PFX "Port %u TX BMAC would not reset, " | |
5499 | "BTXMAC_SW_RST[%llx]\n", | |
5500 | np->port, | |
5501 | (unsigned long long) nr64_mac(BTXMAC_SW_RST)); | |
5502 | return -ENODEV; | |
5503 | } | |
5504 | ||
5505 | return 0; | |
5506 | } | |
5507 | ||
5508 | static int niu_reset_tx_mac(struct niu *np) | |
5509 | { | |
5510 | if (np->flags & NIU_FLAGS_XMAC) | |
5511 | return niu_reset_tx_xmac(np); | |
5512 | else | |
5513 | return niu_reset_tx_bmac(np); | |
5514 | } | |
5515 | ||
5516 | static void niu_init_tx_xmac(struct niu *np, u64 min, u64 max) | |
5517 | { | |
5518 | u64 val; | |
5519 | ||
5520 | val = nr64_mac(XMAC_MIN); | |
5521 | val &= ~(XMAC_MIN_TX_MIN_PKT_SIZE | | |
5522 | XMAC_MIN_RX_MIN_PKT_SIZE); | |
5523 | val |= (min << XMAC_MIN_RX_MIN_PKT_SIZE_SHFT); | |
5524 | val |= (min << XMAC_MIN_TX_MIN_PKT_SIZE_SHFT); | |
5525 | nw64_mac(XMAC_MIN, val); | |
5526 | ||
5527 | nw64_mac(XMAC_MAX, max); | |
5528 | ||
5529 | nw64_mac(XTXMAC_STAT_MSK, ~(u64)0); | |
5530 | ||
5531 | val = nr64_mac(XMAC_IPG); | |
5532 | if (np->flags & NIU_FLAGS_10G) { | |
5533 | val &= ~XMAC_IPG_IPG_XGMII; | |
5534 | val |= (IPG_12_15_XGMII << XMAC_IPG_IPG_XGMII_SHIFT); | |
5535 | } else { | |
5536 | val &= ~XMAC_IPG_IPG_MII_GMII; | |
5537 | val |= (IPG_12_MII_GMII << XMAC_IPG_IPG_MII_GMII_SHIFT); | |
5538 | } | |
5539 | nw64_mac(XMAC_IPG, val); | |
5540 | ||
5541 | val = nr64_mac(XMAC_CONFIG); | |
5542 | val &= ~(XMAC_CONFIG_ALWAYS_NO_CRC | | |
5543 | XMAC_CONFIG_STRETCH_MODE | | |
5544 | XMAC_CONFIG_VAR_MIN_IPG_EN | | |
5545 | XMAC_CONFIG_TX_ENABLE); | |
5546 | nw64_mac(XMAC_CONFIG, val); | |
5547 | ||
5548 | nw64_mac(TXMAC_FRM_CNT, 0); | |
5549 | nw64_mac(TXMAC_BYTE_CNT, 0); | |
5550 | } | |
5551 | ||
5552 | static void niu_init_tx_bmac(struct niu *np, u64 min, u64 max) | |
5553 | { | |
5554 | u64 val; | |
5555 | ||
5556 | nw64_mac(BMAC_MIN_FRAME, min); | |
5557 | nw64_mac(BMAC_MAX_FRAME, max); | |
5558 | ||
5559 | nw64_mac(BTXMAC_STATUS_MASK, ~(u64)0); | |
5560 | nw64_mac(BMAC_CTRL_TYPE, 0x8808); | |
5561 | nw64_mac(BMAC_PREAMBLE_SIZE, 7); | |
5562 | ||
5563 | val = nr64_mac(BTXMAC_CONFIG); | |
5564 | val &= ~(BTXMAC_CONFIG_FCS_DISABLE | | |
5565 | BTXMAC_CONFIG_ENABLE); | |
5566 | nw64_mac(BTXMAC_CONFIG, val); | |
5567 | } | |
5568 | ||
5569 | static void niu_init_tx_mac(struct niu *np) | |
5570 | { | |
5571 | u64 min, max; | |
5572 | ||
5573 | min = 64; | |
5574 | if (np->dev->mtu > ETH_DATA_LEN) | |
5575 | max = 9216; | |
5576 | else | |
5577 | max = 1522; | |
5578 | ||
5579 | /* The XMAC_MIN register only accepts values for TX min which | |
5580 | * have the low 3 bits cleared. | |
5581 | */ | |
5582 | BUILD_BUG_ON(min & 0x7); | |
5583 | ||
5584 | if (np->flags & NIU_FLAGS_XMAC) | |
5585 | niu_init_tx_xmac(np, min, max); | |
5586 | else | |
5587 | niu_init_tx_bmac(np, min, max); | |
5588 | } | |
5589 | ||
5590 | static int niu_reset_rx_xmac(struct niu *np) | |
5591 | { | |
5592 | int limit; | |
5593 | ||
5594 | nw64_mac(XRXMAC_SW_RST, | |
5595 | XRXMAC_SW_RST_REG_RS | XRXMAC_SW_RST_SOFT_RST); | |
5596 | limit = 1000; | |
5597 | while (--limit >= 0) { | |
5598 | if (!(nr64_mac(XRXMAC_SW_RST) & (XRXMAC_SW_RST_REG_RS | | |
5599 | XRXMAC_SW_RST_SOFT_RST))) | |
5600 | break; | |
5601 | udelay(100); | |
5602 | } | |
5603 | if (limit < 0) { | |
5604 | dev_err(np->device, PFX "Port %u RX XMAC would not reset, " | |
5605 | "XRXMAC_SW_RST[%llx]\n", | |
5606 | np->port, | |
5607 | (unsigned long long) nr64_mac(XRXMAC_SW_RST)); | |
5608 | return -ENODEV; | |
5609 | } | |
5610 | ||
5611 | return 0; | |
5612 | } | |
5613 | ||
5614 | static int niu_reset_rx_bmac(struct niu *np) | |
5615 | { | |
5616 | int limit; | |
5617 | ||
5618 | nw64_mac(BRXMAC_SW_RST, BRXMAC_SW_RST_RESET); | |
5619 | limit = 1000; | |
5620 | while (--limit >= 0) { | |
5621 | if (!(nr64_mac(BRXMAC_SW_RST) & BRXMAC_SW_RST_RESET)) | |
5622 | break; | |
5623 | udelay(100); | |
5624 | } | |
5625 | if (limit < 0) { | |
5626 | dev_err(np->device, PFX "Port %u RX BMAC would not reset, " | |
5627 | "BRXMAC_SW_RST[%llx]\n", | |
5628 | np->port, | |
5629 | (unsigned long long) nr64_mac(BRXMAC_SW_RST)); | |
5630 | return -ENODEV; | |
5631 | } | |
5632 | ||
5633 | return 0; | |
5634 | } | |
5635 | ||
5636 | static int niu_reset_rx_mac(struct niu *np) | |
5637 | { | |
5638 | if (np->flags & NIU_FLAGS_XMAC) | |
5639 | return niu_reset_rx_xmac(np); | |
5640 | else | |
5641 | return niu_reset_rx_bmac(np); | |
5642 | } | |
5643 | ||
5644 | static void niu_init_rx_xmac(struct niu *np) | |
5645 | { | |
5646 | struct niu_parent *parent = np->parent; | |
5647 | struct niu_rdc_tables *tp = &parent->rdc_group_cfg[np->port]; | |
5648 | int first_rdc_table = tp->first_table_num; | |
5649 | unsigned long i; | |
5650 | u64 val; | |
5651 | ||
5652 | nw64_mac(XMAC_ADD_FILT0, 0); | |
5653 | nw64_mac(XMAC_ADD_FILT1, 0); | |
5654 | nw64_mac(XMAC_ADD_FILT2, 0); | |
5655 | nw64_mac(XMAC_ADD_FILT12_MASK, 0); | |
5656 | nw64_mac(XMAC_ADD_FILT00_MASK, 0); | |
5657 | for (i = 0; i < MAC_NUM_HASH; i++) | |
5658 | nw64_mac(XMAC_HASH_TBL(i), 0); | |
5659 | nw64_mac(XRXMAC_STAT_MSK, ~(u64)0); | |
5660 | niu_set_primary_mac_rdc_table(np, first_rdc_table, 1); | |
5661 | niu_set_multicast_mac_rdc_table(np, first_rdc_table, 1); | |
5662 | ||
5663 | val = nr64_mac(XMAC_CONFIG); | |
5664 | val &= ~(XMAC_CONFIG_RX_MAC_ENABLE | | |
5665 | XMAC_CONFIG_PROMISCUOUS | | |
5666 | XMAC_CONFIG_PROMISC_GROUP | | |
5667 | XMAC_CONFIG_ERR_CHK_DIS | | |
5668 | XMAC_CONFIG_RX_CRC_CHK_DIS | | |
5669 | XMAC_CONFIG_RESERVED_MULTICAST | | |
5670 | XMAC_CONFIG_RX_CODEV_CHK_DIS | | |
5671 | XMAC_CONFIG_ADDR_FILTER_EN | | |
5672 | XMAC_CONFIG_RCV_PAUSE_ENABLE | | |
5673 | XMAC_CONFIG_STRIP_CRC | | |
5674 | XMAC_CONFIG_PASS_FLOW_CTRL | | |
5675 | XMAC_CONFIG_MAC2IPP_PKT_CNT_EN); | |
5676 | val |= (XMAC_CONFIG_HASH_FILTER_EN); | |
5677 | nw64_mac(XMAC_CONFIG, val); | |
5678 | ||
5679 | nw64_mac(RXMAC_BT_CNT, 0); | |
5680 | nw64_mac(RXMAC_BC_FRM_CNT, 0); | |
5681 | nw64_mac(RXMAC_MC_FRM_CNT, 0); | |
5682 | nw64_mac(RXMAC_FRAG_CNT, 0); | |
5683 | nw64_mac(RXMAC_HIST_CNT1, 0); | |
5684 | nw64_mac(RXMAC_HIST_CNT2, 0); | |
5685 | nw64_mac(RXMAC_HIST_CNT3, 0); | |
5686 | nw64_mac(RXMAC_HIST_CNT4, 0); | |
5687 | nw64_mac(RXMAC_HIST_CNT5, 0); | |
5688 | nw64_mac(RXMAC_HIST_CNT6, 0); | |
5689 | nw64_mac(RXMAC_HIST_CNT7, 0); | |
5690 | nw64_mac(RXMAC_MPSZER_CNT, 0); | |
5691 | nw64_mac(RXMAC_CRC_ER_CNT, 0); | |
5692 | nw64_mac(RXMAC_CD_VIO_CNT, 0); | |
5693 | nw64_mac(LINK_FAULT_CNT, 0); | |
5694 | } | |
5695 | ||
5696 | static void niu_init_rx_bmac(struct niu *np) | |
5697 | { | |
5698 | struct niu_parent *parent = np->parent; | |
5699 | struct niu_rdc_tables *tp = &parent->rdc_group_cfg[np->port]; | |
5700 | int first_rdc_table = tp->first_table_num; | |
5701 | unsigned long i; | |
5702 | u64 val; | |
5703 | ||
5704 | nw64_mac(BMAC_ADD_FILT0, 0); | |
5705 | nw64_mac(BMAC_ADD_FILT1, 0); | |
5706 | nw64_mac(BMAC_ADD_FILT2, 0); | |
5707 | nw64_mac(BMAC_ADD_FILT12_MASK, 0); | |
5708 | nw64_mac(BMAC_ADD_FILT00_MASK, 0); | |
5709 | for (i = 0; i < MAC_NUM_HASH; i++) | |
5710 | nw64_mac(BMAC_HASH_TBL(i), 0); | |
5711 | niu_set_primary_mac_rdc_table(np, first_rdc_table, 1); | |
5712 | niu_set_multicast_mac_rdc_table(np, first_rdc_table, 1); | |
5713 | nw64_mac(BRXMAC_STATUS_MASK, ~(u64)0); | |
5714 | ||
5715 | val = nr64_mac(BRXMAC_CONFIG); | |
5716 | val &= ~(BRXMAC_CONFIG_ENABLE | | |
5717 | BRXMAC_CONFIG_STRIP_PAD | | |
5718 | BRXMAC_CONFIG_STRIP_FCS | | |
5719 | BRXMAC_CONFIG_PROMISC | | |
5720 | BRXMAC_CONFIG_PROMISC_GRP | | |
5721 | BRXMAC_CONFIG_ADDR_FILT_EN | | |
5722 | BRXMAC_CONFIG_DISCARD_DIS); | |
5723 | val |= (BRXMAC_CONFIG_HASH_FILT_EN); | |
5724 | nw64_mac(BRXMAC_CONFIG, val); | |
5725 | ||
5726 | val = nr64_mac(BMAC_ADDR_CMPEN); | |
5727 | val |= BMAC_ADDR_CMPEN_EN0; | |
5728 | nw64_mac(BMAC_ADDR_CMPEN, val); | |
5729 | } | |
5730 | ||
5731 | static void niu_init_rx_mac(struct niu *np) | |
5732 | { | |
5733 | niu_set_primary_mac(np, np->dev->dev_addr); | |
5734 | ||
5735 | if (np->flags & NIU_FLAGS_XMAC) | |
5736 | niu_init_rx_xmac(np); | |
5737 | else | |
5738 | niu_init_rx_bmac(np); | |
5739 | } | |
5740 | ||
5741 | static void niu_enable_tx_xmac(struct niu *np, int on) | |
5742 | { | |
5743 | u64 val = nr64_mac(XMAC_CONFIG); | |
5744 | ||
5745 | if (on) | |
5746 | val |= XMAC_CONFIG_TX_ENABLE; | |
5747 | else | |
5748 | val &= ~XMAC_CONFIG_TX_ENABLE; | |
5749 | nw64_mac(XMAC_CONFIG, val); | |
5750 | } | |
5751 | ||
5752 | static void niu_enable_tx_bmac(struct niu *np, int on) | |
5753 | { | |
5754 | u64 val = nr64_mac(BTXMAC_CONFIG); | |
5755 | ||
5756 | if (on) | |
5757 | val |= BTXMAC_CONFIG_ENABLE; | |
5758 | else | |
5759 | val &= ~BTXMAC_CONFIG_ENABLE; | |
5760 | nw64_mac(BTXMAC_CONFIG, val); | |
5761 | } | |
5762 | ||
5763 | static void niu_enable_tx_mac(struct niu *np, int on) | |
5764 | { | |
5765 | if (np->flags & NIU_FLAGS_XMAC) | |
5766 | niu_enable_tx_xmac(np, on); | |
5767 | else | |
5768 | niu_enable_tx_bmac(np, on); | |
5769 | } | |
5770 | ||
5771 | static void niu_enable_rx_xmac(struct niu *np, int on) | |
5772 | { | |
5773 | u64 val = nr64_mac(XMAC_CONFIG); | |
5774 | ||
5775 | val &= ~(XMAC_CONFIG_HASH_FILTER_EN | | |
5776 | XMAC_CONFIG_PROMISCUOUS); | |
5777 | ||
5778 | if (np->flags & NIU_FLAGS_MCAST) | |
5779 | val |= XMAC_CONFIG_HASH_FILTER_EN; | |
5780 | if (np->flags & NIU_FLAGS_PROMISC) | |
5781 | val |= XMAC_CONFIG_PROMISCUOUS; | |
5782 | ||
5783 | if (on) | |
5784 | val |= XMAC_CONFIG_RX_MAC_ENABLE; | |
5785 | else | |
5786 | val &= ~XMAC_CONFIG_RX_MAC_ENABLE; | |
5787 | nw64_mac(XMAC_CONFIG, val); | |
5788 | } | |
5789 | ||
5790 | static void niu_enable_rx_bmac(struct niu *np, int on) | |
5791 | { | |
5792 | u64 val = nr64_mac(BRXMAC_CONFIG); | |
5793 | ||
5794 | val &= ~(BRXMAC_CONFIG_HASH_FILT_EN | | |
5795 | BRXMAC_CONFIG_PROMISC); | |
5796 | ||
5797 | if (np->flags & NIU_FLAGS_MCAST) | |
5798 | val |= BRXMAC_CONFIG_HASH_FILT_EN; | |
5799 | if (np->flags & NIU_FLAGS_PROMISC) | |
5800 | val |= BRXMAC_CONFIG_PROMISC; | |
5801 | ||
5802 | if (on) | |
5803 | val |= BRXMAC_CONFIG_ENABLE; | |
5804 | else | |
5805 | val &= ~BRXMAC_CONFIG_ENABLE; | |
5806 | nw64_mac(BRXMAC_CONFIG, val); | |
5807 | } | |
5808 | ||
5809 | static void niu_enable_rx_mac(struct niu *np, int on) | |
5810 | { | |
5811 | if (np->flags & NIU_FLAGS_XMAC) | |
5812 | niu_enable_rx_xmac(np, on); | |
5813 | else | |
5814 | niu_enable_rx_bmac(np, on); | |
5815 | } | |
5816 | ||
5817 | static int niu_init_mac(struct niu *np) | |
5818 | { | |
5819 | int err; | |
5820 | ||
5821 | niu_init_xif(np); | |
5822 | err = niu_init_pcs(np); | |
5823 | if (err) | |
5824 | return err; | |
5825 | ||
5826 | err = niu_reset_tx_mac(np); | |
5827 | if (err) | |
5828 | return err; | |
5829 | niu_init_tx_mac(np); | |
5830 | err = niu_reset_rx_mac(np); | |
5831 | if (err) | |
5832 | return err; | |
5833 | niu_init_rx_mac(np); | |
5834 | ||
5835 | /* This looks hookey but the RX MAC reset we just did will | |
5836 | * undo some of the state we setup in niu_init_tx_mac() so we | |
5837 | * have to call it again. In particular, the RX MAC reset will | |
5838 | * set the XMAC_MAX register back to it's default value. | |
5839 | */ | |
5840 | niu_init_tx_mac(np); | |
5841 | niu_enable_tx_mac(np, 1); | |
5842 | ||
5843 | niu_enable_rx_mac(np, 1); | |
5844 | ||
5845 | return 0; | |
5846 | } | |
5847 | ||
5848 | static void niu_stop_one_tx_channel(struct niu *np, struct tx_ring_info *rp) | |
5849 | { | |
5850 | (void) niu_tx_channel_stop(np, rp->tx_channel); | |
5851 | } | |
5852 | ||
5853 | static void niu_stop_tx_channels(struct niu *np) | |
5854 | { | |
5855 | int i; | |
5856 | ||
5857 | for (i = 0; i < np->num_tx_rings; i++) { | |
5858 | struct tx_ring_info *rp = &np->tx_rings[i]; | |
5859 | ||
5860 | niu_stop_one_tx_channel(np, rp); | |
5861 | } | |
5862 | } | |
5863 | ||
5864 | static void niu_reset_one_tx_channel(struct niu *np, struct tx_ring_info *rp) | |
5865 | { | |
5866 | (void) niu_tx_channel_reset(np, rp->tx_channel); | |
5867 | } | |
5868 | ||
5869 | static void niu_reset_tx_channels(struct niu *np) | |
5870 | { | |
5871 | int i; | |
5872 | ||
5873 | for (i = 0; i < np->num_tx_rings; i++) { | |
5874 | struct tx_ring_info *rp = &np->tx_rings[i]; | |
5875 | ||
5876 | niu_reset_one_tx_channel(np, rp); | |
5877 | } | |
5878 | } | |
5879 | ||
5880 | static void niu_stop_one_rx_channel(struct niu *np, struct rx_ring_info *rp) | |
5881 | { | |
5882 | (void) niu_enable_rx_channel(np, rp->rx_channel, 0); | |
5883 | } | |
5884 | ||
5885 | static void niu_stop_rx_channels(struct niu *np) | |
5886 | { | |
5887 | int i; | |
5888 | ||
5889 | for (i = 0; i < np->num_rx_rings; i++) { | |
5890 | struct rx_ring_info *rp = &np->rx_rings[i]; | |
5891 | ||
5892 | niu_stop_one_rx_channel(np, rp); | |
5893 | } | |
5894 | } | |
5895 | ||
5896 | static void niu_reset_one_rx_channel(struct niu *np, struct rx_ring_info *rp) | |
5897 | { | |
5898 | int channel = rp->rx_channel; | |
5899 | ||
5900 | (void) niu_rx_channel_reset(np, channel); | |
5901 | nw64(RX_DMA_ENT_MSK(channel), RX_DMA_ENT_MSK_ALL); | |
5902 | nw64(RX_DMA_CTL_STAT(channel), 0); | |
5903 | (void) niu_enable_rx_channel(np, channel, 0); | |
5904 | } | |
5905 | ||
5906 | static void niu_reset_rx_channels(struct niu *np) | |
5907 | { | |
5908 | int i; | |
5909 | ||
5910 | for (i = 0; i < np->num_rx_rings; i++) { | |
5911 | struct rx_ring_info *rp = &np->rx_rings[i]; | |
5912 | ||
5913 | niu_reset_one_rx_channel(np, rp); | |
5914 | } | |
5915 | } | |
5916 | ||
5917 | static void niu_disable_ipp(struct niu *np) | |
5918 | { | |
5919 | u64 rd, wr, val; | |
5920 | int limit; | |
5921 | ||
5922 | rd = nr64_ipp(IPP_DFIFO_RD_PTR); | |
5923 | wr = nr64_ipp(IPP_DFIFO_WR_PTR); | |
5924 | limit = 100; | |
5925 | while (--limit >= 0 && (rd != wr)) { | |
5926 | rd = nr64_ipp(IPP_DFIFO_RD_PTR); | |
5927 | wr = nr64_ipp(IPP_DFIFO_WR_PTR); | |
5928 | } | |
5929 | if (limit < 0 && | |
5930 | (rd != 0 && wr != 1)) { | |
5931 | dev_err(np->device, PFX "%s: IPP would not quiesce, " | |
5932 | "rd_ptr[%llx] wr_ptr[%llx]\n", | |
5933 | np->dev->name, | |
5934 | (unsigned long long) nr64_ipp(IPP_DFIFO_RD_PTR), | |
5935 | (unsigned long long) nr64_ipp(IPP_DFIFO_WR_PTR)); | |
5936 | } | |
5937 | ||
5938 | val = nr64_ipp(IPP_CFIG); | |
5939 | val &= ~(IPP_CFIG_IPP_ENABLE | | |
5940 | IPP_CFIG_DFIFO_ECC_EN | | |
5941 | IPP_CFIG_DROP_BAD_CRC | | |
5942 | IPP_CFIG_CKSUM_EN); | |
5943 | nw64_ipp(IPP_CFIG, val); | |
5944 | ||
5945 | (void) niu_ipp_reset(np); | |
5946 | } | |
5947 | ||
5948 | static int niu_init_hw(struct niu *np) | |
5949 | { | |
5950 | int i, err; | |
5951 | ||
5952 | niudbg(IFUP, "%s: Initialize TXC\n", np->dev->name); | |
5953 | niu_txc_enable_port(np, 1); | |
5954 | niu_txc_port_dma_enable(np, 1); | |
5955 | niu_txc_set_imask(np, 0); | |
5956 | ||
5957 | niudbg(IFUP, "%s: Initialize TX channels\n", np->dev->name); | |
5958 | for (i = 0; i < np->num_tx_rings; i++) { | |
5959 | struct tx_ring_info *rp = &np->tx_rings[i]; | |
5960 | ||
5961 | err = niu_init_one_tx_channel(np, rp); | |
5962 | if (err) | |
5963 | return err; | |
5964 | } | |
5965 | ||
5966 | niudbg(IFUP, "%s: Initialize RX channels\n", np->dev->name); | |
5967 | err = niu_init_rx_channels(np); | |
5968 | if (err) | |
5969 | goto out_uninit_tx_channels; | |
5970 | ||
5971 | niudbg(IFUP, "%s: Initialize classifier\n", np->dev->name); | |
5972 | err = niu_init_classifier_hw(np); | |
5973 | if (err) | |
5974 | goto out_uninit_rx_channels; | |
5975 | ||
5976 | niudbg(IFUP, "%s: Initialize ZCP\n", np->dev->name); | |
5977 | err = niu_init_zcp(np); | |
5978 | if (err) | |
5979 | goto out_uninit_rx_channels; | |
5980 | ||
5981 | niudbg(IFUP, "%s: Initialize IPP\n", np->dev->name); | |
5982 | err = niu_init_ipp(np); | |
5983 | if (err) | |
5984 | goto out_uninit_rx_channels; | |
5985 | ||
5986 | niudbg(IFUP, "%s: Initialize MAC\n", np->dev->name); | |
5987 | err = niu_init_mac(np); | |
5988 | if (err) | |
5989 | goto out_uninit_ipp; | |
5990 | ||
5991 | return 0; | |
5992 | ||
5993 | out_uninit_ipp: | |
5994 | niudbg(IFUP, "%s: Uninit IPP\n", np->dev->name); | |
5995 | niu_disable_ipp(np); | |
5996 | ||
5997 | out_uninit_rx_channels: | |
5998 | niudbg(IFUP, "%s: Uninit RX channels\n", np->dev->name); | |
5999 | niu_stop_rx_channels(np); | |
6000 | niu_reset_rx_channels(np); | |
6001 | ||
6002 | out_uninit_tx_channels: | |
6003 | niudbg(IFUP, "%s: Uninit TX channels\n", np->dev->name); | |
6004 | niu_stop_tx_channels(np); | |
6005 | niu_reset_tx_channels(np); | |
6006 | ||
6007 | return err; | |
6008 | } | |
6009 | ||
6010 | static void niu_stop_hw(struct niu *np) | |
6011 | { | |
6012 | niudbg(IFDOWN, "%s: Disable interrupts\n", np->dev->name); | |
6013 | niu_enable_interrupts(np, 0); | |
6014 | ||
6015 | niudbg(IFDOWN, "%s: Disable RX MAC\n", np->dev->name); | |
6016 | niu_enable_rx_mac(np, 0); | |
6017 | ||
6018 | niudbg(IFDOWN, "%s: Disable IPP\n", np->dev->name); | |
6019 | niu_disable_ipp(np); | |
6020 | ||
6021 | niudbg(IFDOWN, "%s: Stop TX channels\n", np->dev->name); | |
6022 | niu_stop_tx_channels(np); | |
6023 | ||
6024 | niudbg(IFDOWN, "%s: Stop RX channels\n", np->dev->name); | |
6025 | niu_stop_rx_channels(np); | |
6026 | ||
6027 | niudbg(IFDOWN, "%s: Reset TX channels\n", np->dev->name); | |
6028 | niu_reset_tx_channels(np); | |
6029 | ||
6030 | niudbg(IFDOWN, "%s: Reset RX channels\n", np->dev->name); | |
6031 | niu_reset_rx_channels(np); | |
6032 | } | |
6033 | ||
70340d72 RO |
6034 | static void niu_set_irq_name(struct niu *np) |
6035 | { | |
6036 | int port = np->port; | |
6037 | int i, j = 1; | |
6038 | ||
6039 | sprintf(np->irq_name[0], "%s:MAC", np->dev->name); | |
6040 | ||
6041 | if (port == 0) { | |
6042 | sprintf(np->irq_name[1], "%s:MIF", np->dev->name); | |
6043 | sprintf(np->irq_name[2], "%s:SYSERR", np->dev->name); | |
6044 | j = 3; | |
6045 | } | |
6046 | ||
6047 | for (i = 0; i < np->num_ldg - j; i++) { | |
6048 | if (i < np->num_rx_rings) | |
6049 | sprintf(np->irq_name[i+j], "%s-rx-%d", | |
6050 | np->dev->name, i); | |
6051 | else if (i < np->num_tx_rings + np->num_rx_rings) | |
6052 | sprintf(np->irq_name[i+j], "%s-tx-%d", np->dev->name, | |
6053 | i - np->num_rx_rings); | |
6054 | } | |
6055 | } | |
6056 | ||
a3138df9 DM |
6057 | static int niu_request_irq(struct niu *np) |
6058 | { | |
6059 | int i, j, err; | |
6060 | ||
70340d72 RO |
6061 | niu_set_irq_name(np); |
6062 | ||
a3138df9 DM |
6063 | err = 0; |
6064 | for (i = 0; i < np->num_ldg; i++) { | |
6065 | struct niu_ldg *lp = &np->ldg[i]; | |
6066 | ||
6067 | err = request_irq(lp->irq, niu_interrupt, | |
6068 | IRQF_SHARED | IRQF_SAMPLE_RANDOM, | |
70340d72 | 6069 | np->irq_name[i], lp); |
a3138df9 DM |
6070 | if (err) |
6071 | goto out_free_irqs; | |
6072 | ||
6073 | } | |
6074 | ||
6075 | return 0; | |
6076 | ||
6077 | out_free_irqs: | |
6078 | for (j = 0; j < i; j++) { | |
6079 | struct niu_ldg *lp = &np->ldg[j]; | |
6080 | ||
6081 | free_irq(lp->irq, lp); | |
6082 | } | |
6083 | return err; | |
6084 | } | |
6085 | ||
6086 | static void niu_free_irq(struct niu *np) | |
6087 | { | |
6088 | int i; | |
6089 | ||
6090 | for (i = 0; i < np->num_ldg; i++) { | |
6091 | struct niu_ldg *lp = &np->ldg[i]; | |
6092 | ||
6093 | free_irq(lp->irq, lp); | |
6094 | } | |
6095 | } | |
6096 | ||
6097 | static void niu_enable_napi(struct niu *np) | |
6098 | { | |
6099 | int i; | |
6100 | ||
6101 | for (i = 0; i < np->num_ldg; i++) | |
6102 | napi_enable(&np->ldg[i].napi); | |
6103 | } | |
6104 | ||
6105 | static void niu_disable_napi(struct niu *np) | |
6106 | { | |
6107 | int i; | |
6108 | ||
6109 | for (i = 0; i < np->num_ldg; i++) | |
6110 | napi_disable(&np->ldg[i].napi); | |
6111 | } | |
6112 | ||
6113 | static int niu_open(struct net_device *dev) | |
6114 | { | |
6115 | struct niu *np = netdev_priv(dev); | |
6116 | int err; | |
6117 | ||
6118 | netif_carrier_off(dev); | |
6119 | ||
6120 | err = niu_alloc_channels(np); | |
6121 | if (err) | |
6122 | goto out_err; | |
6123 | ||
6124 | err = niu_enable_interrupts(np, 0); | |
6125 | if (err) | |
6126 | goto out_free_channels; | |
6127 | ||
6128 | err = niu_request_irq(np); | |
6129 | if (err) | |
6130 | goto out_free_channels; | |
6131 | ||
6132 | niu_enable_napi(np); | |
6133 | ||
6134 | spin_lock_irq(&np->lock); | |
6135 | ||
6136 | err = niu_init_hw(np); | |
6137 | if (!err) { | |
6138 | init_timer(&np->timer); | |
6139 | np->timer.expires = jiffies + HZ; | |
6140 | np->timer.data = (unsigned long) np; | |
6141 | np->timer.function = niu_timer; | |
6142 | ||
6143 | err = niu_enable_interrupts(np, 1); | |
6144 | if (err) | |
6145 | niu_stop_hw(np); | |
6146 | } | |
6147 | ||
6148 | spin_unlock_irq(&np->lock); | |
6149 | ||
6150 | if (err) { | |
6151 | niu_disable_napi(np); | |
6152 | goto out_free_irq; | |
6153 | } | |
6154 | ||
b4c21639 | 6155 | netif_tx_start_all_queues(dev); |
a3138df9 DM |
6156 | |
6157 | if (np->link_config.loopback_mode != LOOPBACK_DISABLED) | |
6158 | netif_carrier_on(dev); | |
6159 | ||
6160 | add_timer(&np->timer); | |
6161 | ||
6162 | return 0; | |
6163 | ||
6164 | out_free_irq: | |
6165 | niu_free_irq(np); | |
6166 | ||
6167 | out_free_channels: | |
6168 | niu_free_channels(np); | |
6169 | ||
6170 | out_err: | |
6171 | return err; | |
6172 | } | |
6173 | ||
6174 | static void niu_full_shutdown(struct niu *np, struct net_device *dev) | |
6175 | { | |
6176 | cancel_work_sync(&np->reset_task); | |
6177 | ||
6178 | niu_disable_napi(np); | |
b4c21639 | 6179 | netif_tx_stop_all_queues(dev); |
a3138df9 DM |
6180 | |
6181 | del_timer_sync(&np->timer); | |
6182 | ||
6183 | spin_lock_irq(&np->lock); | |
6184 | ||
6185 | niu_stop_hw(np); | |
6186 | ||
6187 | spin_unlock_irq(&np->lock); | |
6188 | } | |
6189 | ||
6190 | static int niu_close(struct net_device *dev) | |
6191 | { | |
6192 | struct niu *np = netdev_priv(dev); | |
6193 | ||
6194 | niu_full_shutdown(np, dev); | |
6195 | ||
6196 | niu_free_irq(np); | |
6197 | ||
6198 | niu_free_channels(np); | |
6199 | ||
0c3b091b ML |
6200 | niu_handle_led(np, 0); |
6201 | ||
a3138df9 DM |
6202 | return 0; |
6203 | } | |
6204 | ||
6205 | static void niu_sync_xmac_stats(struct niu *np) | |
6206 | { | |
6207 | struct niu_xmac_stats *mp = &np->mac_stats.xmac; | |
6208 | ||
6209 | mp->tx_frames += nr64_mac(TXMAC_FRM_CNT); | |
6210 | mp->tx_bytes += nr64_mac(TXMAC_BYTE_CNT); | |
6211 | ||
6212 | mp->rx_link_faults += nr64_mac(LINK_FAULT_CNT); | |
6213 | mp->rx_align_errors += nr64_mac(RXMAC_ALIGN_ERR_CNT); | |
6214 | mp->rx_frags += nr64_mac(RXMAC_FRAG_CNT); | |
6215 | mp->rx_mcasts += nr64_mac(RXMAC_MC_FRM_CNT); | |
6216 | mp->rx_bcasts += nr64_mac(RXMAC_BC_FRM_CNT); | |
6217 | mp->rx_hist_cnt1 += nr64_mac(RXMAC_HIST_CNT1); | |
6218 | mp->rx_hist_cnt2 += nr64_mac(RXMAC_HIST_CNT2); | |
6219 | mp->rx_hist_cnt3 += nr64_mac(RXMAC_HIST_CNT3); | |
6220 | mp->rx_hist_cnt4 += nr64_mac(RXMAC_HIST_CNT4); | |
6221 | mp->rx_hist_cnt5 += nr64_mac(RXMAC_HIST_CNT5); | |
6222 | mp->rx_hist_cnt6 += nr64_mac(RXMAC_HIST_CNT6); | |
6223 | mp->rx_hist_cnt7 += nr64_mac(RXMAC_HIST_CNT7); | |
6224 | mp->rx_octets += nr64_mac(RXMAC_BT_CNT); | |
6225 | mp->rx_code_violations += nr64_mac(RXMAC_CD_VIO_CNT); | |
6226 | mp->rx_len_errors += nr64_mac(RXMAC_MPSZER_CNT); | |
6227 | mp->rx_crc_errors += nr64_mac(RXMAC_CRC_ER_CNT); | |
6228 | } | |
6229 | ||
6230 | static void niu_sync_bmac_stats(struct niu *np) | |
6231 | { | |
6232 | struct niu_bmac_stats *mp = &np->mac_stats.bmac; | |
6233 | ||
6234 | mp->tx_bytes += nr64_mac(BTXMAC_BYTE_CNT); | |
6235 | mp->tx_frames += nr64_mac(BTXMAC_FRM_CNT); | |
6236 | ||
6237 | mp->rx_frames += nr64_mac(BRXMAC_FRAME_CNT); | |
6238 | mp->rx_align_errors += nr64_mac(BRXMAC_ALIGN_ERR_CNT); | |
6239 | mp->rx_crc_errors += nr64_mac(BRXMAC_ALIGN_ERR_CNT); | |
6240 | mp->rx_len_errors += nr64_mac(BRXMAC_CODE_VIOL_ERR_CNT); | |
6241 | } | |
6242 | ||
6243 | static void niu_sync_mac_stats(struct niu *np) | |
6244 | { | |
6245 | if (np->flags & NIU_FLAGS_XMAC) | |
6246 | niu_sync_xmac_stats(np); | |
6247 | else | |
6248 | niu_sync_bmac_stats(np); | |
6249 | } | |
6250 | ||
6251 | static void niu_get_rx_stats(struct niu *np) | |
6252 | { | |
6253 | unsigned long pkts, dropped, errors, bytes; | |
6254 | int i; | |
6255 | ||
6256 | pkts = dropped = errors = bytes = 0; | |
6257 | for (i = 0; i < np->num_rx_rings; i++) { | |
6258 | struct rx_ring_info *rp = &np->rx_rings[i]; | |
6259 | ||
b8a606b8 JDB |
6260 | niu_sync_rx_discard_stats(np, rp, 0); |
6261 | ||
a3138df9 DM |
6262 | pkts += rp->rx_packets; |
6263 | bytes += rp->rx_bytes; | |
6264 | dropped += rp->rx_dropped; | |
6265 | errors += rp->rx_errors; | |
6266 | } | |
9fd42876 IJ |
6267 | np->dev->stats.rx_packets = pkts; |
6268 | np->dev->stats.rx_bytes = bytes; | |
6269 | np->dev->stats.rx_dropped = dropped; | |
6270 | np->dev->stats.rx_errors = errors; | |
a3138df9 DM |
6271 | } |
6272 | ||
6273 | static void niu_get_tx_stats(struct niu *np) | |
6274 | { | |
6275 | unsigned long pkts, errors, bytes; | |
6276 | int i; | |
6277 | ||
6278 | pkts = errors = bytes = 0; | |
6279 | for (i = 0; i < np->num_tx_rings; i++) { | |
6280 | struct tx_ring_info *rp = &np->tx_rings[i]; | |
6281 | ||
6282 | pkts += rp->tx_packets; | |
6283 | bytes += rp->tx_bytes; | |
6284 | errors += rp->tx_errors; | |
6285 | } | |
9fd42876 IJ |
6286 | np->dev->stats.tx_packets = pkts; |
6287 | np->dev->stats.tx_bytes = bytes; | |
6288 | np->dev->stats.tx_errors = errors; | |
a3138df9 DM |
6289 | } |
6290 | ||
6291 | static struct net_device_stats *niu_get_stats(struct net_device *dev) | |
6292 | { | |
6293 | struct niu *np = netdev_priv(dev); | |
6294 | ||
6295 | niu_get_rx_stats(np); | |
6296 | niu_get_tx_stats(np); | |
6297 | ||
9fd42876 | 6298 | return &dev->stats; |
a3138df9 DM |
6299 | } |
6300 | ||
6301 | static void niu_load_hash_xmac(struct niu *np, u16 *hash) | |
6302 | { | |
6303 | int i; | |
6304 | ||
6305 | for (i = 0; i < 16; i++) | |
6306 | nw64_mac(XMAC_HASH_TBL(i), hash[i]); | |
6307 | } | |
6308 | ||
6309 | static void niu_load_hash_bmac(struct niu *np, u16 *hash) | |
6310 | { | |
6311 | int i; | |
6312 | ||
6313 | for (i = 0; i < 16; i++) | |
6314 | nw64_mac(BMAC_HASH_TBL(i), hash[i]); | |
6315 | } | |
6316 | ||
6317 | static void niu_load_hash(struct niu *np, u16 *hash) | |
6318 | { | |
6319 | if (np->flags & NIU_FLAGS_XMAC) | |
6320 | niu_load_hash_xmac(np, hash); | |
6321 | else | |
6322 | niu_load_hash_bmac(np, hash); | |
6323 | } | |
6324 | ||
6325 | static void niu_set_rx_mode(struct net_device *dev) | |
6326 | { | |
6327 | struct niu *np = netdev_priv(dev); | |
6328 | int i, alt_cnt, err; | |
6329 | struct dev_addr_list *addr; | |
6330 | unsigned long flags; | |
6331 | u16 hash[16] = { 0, }; | |
6332 | ||
6333 | spin_lock_irqsave(&np->lock, flags); | |
6334 | niu_enable_rx_mac(np, 0); | |
6335 | ||
6336 | np->flags &= ~(NIU_FLAGS_MCAST | NIU_FLAGS_PROMISC); | |
6337 | if (dev->flags & IFF_PROMISC) | |
6338 | np->flags |= NIU_FLAGS_PROMISC; | |
6339 | if ((dev->flags & IFF_ALLMULTI) || (dev->mc_count > 0)) | |
6340 | np->flags |= NIU_FLAGS_MCAST; | |
6341 | ||
6342 | alt_cnt = dev->uc_count; | |
6343 | if (alt_cnt > niu_num_alt_addr(np)) { | |
6344 | alt_cnt = 0; | |
6345 | np->flags |= NIU_FLAGS_PROMISC; | |
6346 | } | |
6347 | ||
6348 | if (alt_cnt) { | |
6349 | int index = 0; | |
6350 | ||
6351 | for (addr = dev->uc_list; addr; addr = addr->next) { | |
6352 | err = niu_set_alt_mac(np, index, | |
6353 | addr->da_addr); | |
6354 | if (err) | |
6355 | printk(KERN_WARNING PFX "%s: Error %d " | |
6356 | "adding alt mac %d\n", | |
6357 | dev->name, err, index); | |
6358 | err = niu_enable_alt_mac(np, index, 1); | |
6359 | if (err) | |
6360 | printk(KERN_WARNING PFX "%s: Error %d " | |
6361 | "enabling alt mac %d\n", | |
6362 | dev->name, err, index); | |
6363 | ||
6364 | index++; | |
6365 | } | |
6366 | } else { | |
3b5bcede MW |
6367 | int alt_start; |
6368 | if (np->flags & NIU_FLAGS_XMAC) | |
6369 | alt_start = 0; | |
6370 | else | |
6371 | alt_start = 1; | |
6372 | for (i = alt_start; i < niu_num_alt_addr(np); i++) { | |
a3138df9 DM |
6373 | err = niu_enable_alt_mac(np, i, 0); |
6374 | if (err) | |
6375 | printk(KERN_WARNING PFX "%s: Error %d " | |
6376 | "disabling alt mac %d\n", | |
6377 | dev->name, err, i); | |
6378 | } | |
6379 | } | |
6380 | if (dev->flags & IFF_ALLMULTI) { | |
6381 | for (i = 0; i < 16; i++) | |
6382 | hash[i] = 0xffff; | |
6383 | } else if (dev->mc_count > 0) { | |
6384 | for (addr = dev->mc_list; addr; addr = addr->next) { | |
6385 | u32 crc = ether_crc_le(ETH_ALEN, addr->da_addr); | |
6386 | ||
6387 | crc >>= 24; | |
6388 | hash[crc >> 4] |= (1 << (15 - (crc & 0xf))); | |
6389 | } | |
6390 | } | |
6391 | ||
6392 | if (np->flags & NIU_FLAGS_MCAST) | |
6393 | niu_load_hash(np, hash); | |
6394 | ||
6395 | niu_enable_rx_mac(np, 1); | |
6396 | spin_unlock_irqrestore(&np->lock, flags); | |
6397 | } | |
6398 | ||
6399 | static int niu_set_mac_addr(struct net_device *dev, void *p) | |
6400 | { | |
6401 | struct niu *np = netdev_priv(dev); | |
6402 | struct sockaddr *addr = p; | |
6403 | unsigned long flags; | |
6404 | ||
6405 | if (!is_valid_ether_addr(addr->sa_data)) | |
6406 | return -EINVAL; | |
6407 | ||
6408 | memcpy(dev->dev_addr, addr->sa_data, ETH_ALEN); | |
6409 | ||
6410 | if (!netif_running(dev)) | |
6411 | return 0; | |
6412 | ||
6413 | spin_lock_irqsave(&np->lock, flags); | |
6414 | niu_enable_rx_mac(np, 0); | |
6415 | niu_set_primary_mac(np, dev->dev_addr); | |
6416 | niu_enable_rx_mac(np, 1); | |
6417 | spin_unlock_irqrestore(&np->lock, flags); | |
6418 | ||
6419 | return 0; | |
6420 | } | |
6421 | ||
6422 | static int niu_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) | |
6423 | { | |
6424 | return -EOPNOTSUPP; | |
6425 | } | |
6426 | ||
6427 | static void niu_netif_stop(struct niu *np) | |
6428 | { | |
6429 | np->dev->trans_start = jiffies; /* prevent tx timeout */ | |
6430 | ||
6431 | niu_disable_napi(np); | |
6432 | ||
6433 | netif_tx_disable(np->dev); | |
6434 | } | |
6435 | ||
6436 | static void niu_netif_start(struct niu *np) | |
6437 | { | |
6438 | /* NOTE: unconditional netif_wake_queue is only appropriate | |
6439 | * so long as all callers are assured to have free tx slots | |
6440 | * (such as after niu_init_hw). | |
6441 | */ | |
b4c21639 | 6442 | netif_tx_wake_all_queues(np->dev); |
a3138df9 DM |
6443 | |
6444 | niu_enable_napi(np); | |
6445 | ||
6446 | niu_enable_interrupts(np, 1); | |
6447 | } | |
6448 | ||
cff502a3 SB |
6449 | static void niu_reset_buffers(struct niu *np) |
6450 | { | |
6451 | int i, j, k, err; | |
6452 | ||
6453 | if (np->rx_rings) { | |
6454 | for (i = 0; i < np->num_rx_rings; i++) { | |
6455 | struct rx_ring_info *rp = &np->rx_rings[i]; | |
6456 | ||
6457 | for (j = 0, k = 0; j < MAX_RBR_RING_SIZE; j++) { | |
6458 | struct page *page; | |
6459 | ||
6460 | page = rp->rxhash[j]; | |
6461 | while (page) { | |
6462 | struct page *next = | |
6463 | (struct page *) page->mapping; | |
6464 | u64 base = page->index; | |
6465 | base = base >> RBR_DESCR_ADDR_SHIFT; | |
6466 | rp->rbr[k++] = cpu_to_le32(base); | |
6467 | page = next; | |
6468 | } | |
6469 | } | |
6470 | for (; k < MAX_RBR_RING_SIZE; k++) { | |
6471 | err = niu_rbr_add_page(np, rp, GFP_ATOMIC, k); | |
6472 | if (unlikely(err)) | |
6473 | break; | |
6474 | } | |
6475 | ||
6476 | rp->rbr_index = rp->rbr_table_size - 1; | |
6477 | rp->rcr_index = 0; | |
6478 | rp->rbr_pending = 0; | |
6479 | rp->rbr_refill_pending = 0; | |
6480 | } | |
6481 | } | |
6482 | if (np->tx_rings) { | |
6483 | for (i = 0; i < np->num_tx_rings; i++) { | |
6484 | struct tx_ring_info *rp = &np->tx_rings[i]; | |
6485 | ||
6486 | for (j = 0; j < MAX_TX_RING_SIZE; j++) { | |
6487 | if (rp->tx_buffs[j].skb) | |
6488 | (void) release_tx_packet(np, rp, j); | |
6489 | } | |
6490 | ||
6491 | rp->pending = MAX_TX_RING_SIZE; | |
6492 | rp->prod = 0; | |
6493 | rp->cons = 0; | |
6494 | rp->wrap_bit = 0; | |
6495 | } | |
6496 | } | |
6497 | } | |
6498 | ||
a3138df9 DM |
6499 | static void niu_reset_task(struct work_struct *work) |
6500 | { | |
6501 | struct niu *np = container_of(work, struct niu, reset_task); | |
6502 | unsigned long flags; | |
6503 | int err; | |
6504 | ||
6505 | spin_lock_irqsave(&np->lock, flags); | |
6506 | if (!netif_running(np->dev)) { | |
6507 | spin_unlock_irqrestore(&np->lock, flags); | |
6508 | return; | |
6509 | } | |
6510 | ||
6511 | spin_unlock_irqrestore(&np->lock, flags); | |
6512 | ||
6513 | del_timer_sync(&np->timer); | |
6514 | ||
6515 | niu_netif_stop(np); | |
6516 | ||
6517 | spin_lock_irqsave(&np->lock, flags); | |
6518 | ||
6519 | niu_stop_hw(np); | |
6520 | ||
cff502a3 SB |
6521 | spin_unlock_irqrestore(&np->lock, flags); |
6522 | ||
6523 | niu_reset_buffers(np); | |
6524 | ||
6525 | spin_lock_irqsave(&np->lock, flags); | |
6526 | ||
a3138df9 DM |
6527 | err = niu_init_hw(np); |
6528 | if (!err) { | |
6529 | np->timer.expires = jiffies + HZ; | |
6530 | add_timer(&np->timer); | |
6531 | niu_netif_start(np); | |
6532 | } | |
6533 | ||
6534 | spin_unlock_irqrestore(&np->lock, flags); | |
6535 | } | |
6536 | ||
6537 | static void niu_tx_timeout(struct net_device *dev) | |
6538 | { | |
6539 | struct niu *np = netdev_priv(dev); | |
6540 | ||
6541 | dev_err(np->device, PFX "%s: Transmit timed out, resetting\n", | |
6542 | dev->name); | |
6543 | ||
6544 | schedule_work(&np->reset_task); | |
6545 | } | |
6546 | ||
6547 | static void niu_set_txd(struct tx_ring_info *rp, int index, | |
6548 | u64 mapping, u64 len, u64 mark, | |
6549 | u64 n_frags) | |
6550 | { | |
6551 | __le64 *desc = &rp->descr[index]; | |
6552 | ||
6553 | *desc = cpu_to_le64(mark | | |
6554 | (n_frags << TX_DESC_NUM_PTR_SHIFT) | | |
6555 | (len << TX_DESC_TR_LEN_SHIFT) | | |
6556 | (mapping & TX_DESC_SAD)); | |
6557 | } | |
6558 | ||
6559 | static u64 niu_compute_tx_flags(struct sk_buff *skb, struct ethhdr *ehdr, | |
6560 | u64 pad_bytes, u64 len) | |
6561 | { | |
6562 | u16 eth_proto, eth_proto_inner; | |
6563 | u64 csum_bits, l3off, ihl, ret; | |
6564 | u8 ip_proto; | |
6565 | int ipv6; | |
6566 | ||
6567 | eth_proto = be16_to_cpu(ehdr->h_proto); | |
6568 | eth_proto_inner = eth_proto; | |
6569 | if (eth_proto == ETH_P_8021Q) { | |
6570 | struct vlan_ethhdr *vp = (struct vlan_ethhdr *) ehdr; | |
6571 | __be16 val = vp->h_vlan_encapsulated_proto; | |
6572 | ||
6573 | eth_proto_inner = be16_to_cpu(val); | |
6574 | } | |
6575 | ||
6576 | ipv6 = ihl = 0; | |
6577 | switch (skb->protocol) { | |
09640e63 | 6578 | case cpu_to_be16(ETH_P_IP): |
a3138df9 DM |
6579 | ip_proto = ip_hdr(skb)->protocol; |
6580 | ihl = ip_hdr(skb)->ihl; | |
6581 | break; | |
09640e63 | 6582 | case cpu_to_be16(ETH_P_IPV6): |
a3138df9 DM |
6583 | ip_proto = ipv6_hdr(skb)->nexthdr; |
6584 | ihl = (40 >> 2); | |
6585 | ipv6 = 1; | |
6586 | break; | |
6587 | default: | |
6588 | ip_proto = ihl = 0; | |
6589 | break; | |
6590 | } | |
6591 | ||
6592 | csum_bits = TXHDR_CSUM_NONE; | |
6593 | if (skb->ip_summed == CHECKSUM_PARTIAL) { | |
6594 | u64 start, stuff; | |
6595 | ||
6596 | csum_bits = (ip_proto == IPPROTO_TCP ? | |
6597 | TXHDR_CSUM_TCP : | |
6598 | (ip_proto == IPPROTO_UDP ? | |
6599 | TXHDR_CSUM_UDP : TXHDR_CSUM_SCTP)); | |
6600 | ||
6601 | start = skb_transport_offset(skb) - | |
6602 | (pad_bytes + sizeof(struct tx_pkt_hdr)); | |
6603 | stuff = start + skb->csum_offset; | |
6604 | ||
6605 | csum_bits |= (start / 2) << TXHDR_L4START_SHIFT; | |
6606 | csum_bits |= (stuff / 2) << TXHDR_L4STUFF_SHIFT; | |
6607 | } | |
6608 | ||
6609 | l3off = skb_network_offset(skb) - | |
6610 | (pad_bytes + sizeof(struct tx_pkt_hdr)); | |
6611 | ||
6612 | ret = (((pad_bytes / 2) << TXHDR_PAD_SHIFT) | | |
6613 | (len << TXHDR_LEN_SHIFT) | | |
6614 | ((l3off / 2) << TXHDR_L3START_SHIFT) | | |
6615 | (ihl << TXHDR_IHL_SHIFT) | | |
6616 | ((eth_proto_inner < 1536) ? TXHDR_LLC : 0) | | |
6617 | ((eth_proto == ETH_P_8021Q) ? TXHDR_VLAN : 0) | | |
6618 | (ipv6 ? TXHDR_IP_VER : 0) | | |
6619 | csum_bits); | |
6620 | ||
6621 | return ret; | |
6622 | } | |
6623 | ||
a3138df9 DM |
6624 | static int niu_start_xmit(struct sk_buff *skb, struct net_device *dev) |
6625 | { | |
6626 | struct niu *np = netdev_priv(dev); | |
6627 | unsigned long align, headroom; | |
b4c21639 | 6628 | struct netdev_queue *txq; |
a3138df9 DM |
6629 | struct tx_ring_info *rp; |
6630 | struct tx_pkt_hdr *tp; | |
6631 | unsigned int len, nfg; | |
6632 | struct ethhdr *ehdr; | |
6633 | int prod, i, tlen; | |
6634 | u64 mapping, mrk; | |
6635 | ||
b4c21639 DM |
6636 | i = skb_get_queue_mapping(skb); |
6637 | rp = &np->tx_rings[i]; | |
6638 | txq = netdev_get_tx_queue(dev, i); | |
a3138df9 DM |
6639 | |
6640 | if (niu_tx_avail(rp) <= (skb_shinfo(skb)->nr_frags + 1)) { | |
b4c21639 | 6641 | netif_tx_stop_queue(txq); |
a3138df9 DM |
6642 | dev_err(np->device, PFX "%s: BUG! Tx ring full when " |
6643 | "queue awake!\n", dev->name); | |
6644 | rp->tx_errors++; | |
6645 | return NETDEV_TX_BUSY; | |
6646 | } | |
6647 | ||
6648 | if (skb->len < ETH_ZLEN) { | |
6649 | unsigned int pad_bytes = ETH_ZLEN - skb->len; | |
6650 | ||
6651 | if (skb_pad(skb, pad_bytes)) | |
6652 | goto out; | |
6653 | skb_put(skb, pad_bytes); | |
6654 | } | |
6655 | ||
6656 | len = sizeof(struct tx_pkt_hdr) + 15; | |
6657 | if (skb_headroom(skb) < len) { | |
6658 | struct sk_buff *skb_new; | |
6659 | ||
6660 | skb_new = skb_realloc_headroom(skb, len); | |
6661 | if (!skb_new) { | |
6662 | rp->tx_errors++; | |
6663 | goto out_drop; | |
6664 | } | |
6665 | kfree_skb(skb); | |
6666 | skb = skb_new; | |
3ebebccf DM |
6667 | } else |
6668 | skb_orphan(skb); | |
a3138df9 DM |
6669 | |
6670 | align = ((unsigned long) skb->data & (16 - 1)); | |
6671 | headroom = align + sizeof(struct tx_pkt_hdr); | |
6672 | ||
6673 | ehdr = (struct ethhdr *) skb->data; | |
6674 | tp = (struct tx_pkt_hdr *) skb_push(skb, headroom); | |
6675 | ||
6676 | len = skb->len - sizeof(struct tx_pkt_hdr); | |
6677 | tp->flags = cpu_to_le64(niu_compute_tx_flags(skb, ehdr, align, len)); | |
6678 | tp->resv = 0; | |
6679 | ||
6680 | len = skb_headlen(skb); | |
6681 | mapping = np->ops->map_single(np->device, skb->data, | |
6682 | len, DMA_TO_DEVICE); | |
6683 | ||
6684 | prod = rp->prod; | |
6685 | ||
6686 | rp->tx_buffs[prod].skb = skb; | |
6687 | rp->tx_buffs[prod].mapping = mapping; | |
6688 | ||
6689 | mrk = TX_DESC_SOP; | |
6690 | if (++rp->mark_counter == rp->mark_freq) { | |
6691 | rp->mark_counter = 0; | |
6692 | mrk |= TX_DESC_MARK; | |
6693 | rp->mark_pending++; | |
6694 | } | |
6695 | ||
6696 | tlen = len; | |
6697 | nfg = skb_shinfo(skb)->nr_frags; | |
6698 | while (tlen > 0) { | |
6699 | tlen -= MAX_TX_DESC_LEN; | |
6700 | nfg++; | |
6701 | } | |
6702 | ||
6703 | while (len > 0) { | |
6704 | unsigned int this_len = len; | |
6705 | ||
6706 | if (this_len > MAX_TX_DESC_LEN) | |
6707 | this_len = MAX_TX_DESC_LEN; | |
6708 | ||
6709 | niu_set_txd(rp, prod, mapping, this_len, mrk, nfg); | |
6710 | mrk = nfg = 0; | |
6711 | ||
6712 | prod = NEXT_TX(rp, prod); | |
6713 | mapping += this_len; | |
6714 | len -= this_len; | |
6715 | } | |
6716 | ||
6717 | for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) { | |
6718 | skb_frag_t *frag = &skb_shinfo(skb)->frags[i]; | |
6719 | ||
6720 | len = frag->size; | |
6721 | mapping = np->ops->map_page(np->device, frag->page, | |
6722 | frag->page_offset, len, | |
6723 | DMA_TO_DEVICE); | |
6724 | ||
6725 | rp->tx_buffs[prod].skb = NULL; | |
6726 | rp->tx_buffs[prod].mapping = mapping; | |
6727 | ||
6728 | niu_set_txd(rp, prod, mapping, len, 0, 0); | |
6729 | ||
6730 | prod = NEXT_TX(rp, prod); | |
6731 | } | |
6732 | ||
6733 | if (prod < rp->prod) | |
6734 | rp->wrap_bit ^= TX_RING_KICK_WRAP; | |
6735 | rp->prod = prod; | |
6736 | ||
6737 | nw64(TX_RING_KICK(rp->tx_channel), rp->wrap_bit | (prod << 3)); | |
6738 | ||
6739 | if (unlikely(niu_tx_avail(rp) <= (MAX_SKB_FRAGS + 1))) { | |
b4c21639 | 6740 | netif_tx_stop_queue(txq); |
a3138df9 | 6741 | if (niu_tx_avail(rp) > NIU_TX_WAKEUP_THRESH(rp)) |
b4c21639 | 6742 | netif_tx_wake_queue(txq); |
a3138df9 DM |
6743 | } |
6744 | ||
6745 | dev->trans_start = jiffies; | |
6746 | ||
6747 | out: | |
6748 | return NETDEV_TX_OK; | |
6749 | ||
6750 | out_drop: | |
6751 | rp->tx_errors++; | |
6752 | kfree_skb(skb); | |
6753 | goto out; | |
6754 | } | |
6755 | ||
6756 | static int niu_change_mtu(struct net_device *dev, int new_mtu) | |
6757 | { | |
6758 | struct niu *np = netdev_priv(dev); | |
6759 | int err, orig_jumbo, new_jumbo; | |
6760 | ||
6761 | if (new_mtu < 68 || new_mtu > NIU_MAX_MTU) | |
6762 | return -EINVAL; | |
6763 | ||
6764 | orig_jumbo = (dev->mtu > ETH_DATA_LEN); | |
6765 | new_jumbo = (new_mtu > ETH_DATA_LEN); | |
6766 | ||
6767 | dev->mtu = new_mtu; | |
6768 | ||
6769 | if (!netif_running(dev) || | |
6770 | (orig_jumbo == new_jumbo)) | |
6771 | return 0; | |
6772 | ||
6773 | niu_full_shutdown(np, dev); | |
6774 | ||
6775 | niu_free_channels(np); | |
6776 | ||
6777 | niu_enable_napi(np); | |
6778 | ||
6779 | err = niu_alloc_channels(np); | |
6780 | if (err) | |
6781 | return err; | |
6782 | ||
6783 | spin_lock_irq(&np->lock); | |
6784 | ||
6785 | err = niu_init_hw(np); | |
6786 | if (!err) { | |
6787 | init_timer(&np->timer); | |
6788 | np->timer.expires = jiffies + HZ; | |
6789 | np->timer.data = (unsigned long) np; | |
6790 | np->timer.function = niu_timer; | |
6791 | ||
6792 | err = niu_enable_interrupts(np, 1); | |
6793 | if (err) | |
6794 | niu_stop_hw(np); | |
6795 | } | |
6796 | ||
6797 | spin_unlock_irq(&np->lock); | |
6798 | ||
6799 | if (!err) { | |
b4c21639 | 6800 | netif_tx_start_all_queues(dev); |
a3138df9 DM |
6801 | if (np->link_config.loopback_mode != LOOPBACK_DISABLED) |
6802 | netif_carrier_on(dev); | |
6803 | ||
6804 | add_timer(&np->timer); | |
6805 | } | |
6806 | ||
6807 | return err; | |
6808 | } | |
6809 | ||
6810 | static void niu_get_drvinfo(struct net_device *dev, | |
6811 | struct ethtool_drvinfo *info) | |
6812 | { | |
6813 | struct niu *np = netdev_priv(dev); | |
6814 | struct niu_vpd *vpd = &np->vpd; | |
6815 | ||
6816 | strcpy(info->driver, DRV_MODULE_NAME); | |
6817 | strcpy(info->version, DRV_MODULE_VERSION); | |
6818 | sprintf(info->fw_version, "%d.%d", | |
6819 | vpd->fcode_major, vpd->fcode_minor); | |
6820 | if (np->parent->plat_type != PLAT_TYPE_NIU) | |
6821 | strcpy(info->bus_info, pci_name(np->pdev)); | |
6822 | } | |
6823 | ||
6824 | static int niu_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) | |
6825 | { | |
6826 | struct niu *np = netdev_priv(dev); | |
6827 | struct niu_link_config *lp; | |
6828 | ||
6829 | lp = &np->link_config; | |
6830 | ||
6831 | memset(cmd, 0, sizeof(*cmd)); | |
6832 | cmd->phy_address = np->phy_addr; | |
6833 | cmd->supported = lp->supported; | |
38bb045d CB |
6834 | cmd->advertising = lp->active_advertising; |
6835 | cmd->autoneg = lp->active_autoneg; | |
a3138df9 DM |
6836 | cmd->speed = lp->active_speed; |
6837 | cmd->duplex = lp->active_duplex; | |
38bb045d CB |
6838 | cmd->port = (np->flags & NIU_FLAGS_FIBER) ? PORT_FIBRE : PORT_TP; |
6839 | cmd->transceiver = (np->flags & NIU_FLAGS_XCVR_SERDES) ? | |
6840 | XCVR_EXTERNAL : XCVR_INTERNAL; | |
a3138df9 DM |
6841 | |
6842 | return 0; | |
6843 | } | |
6844 | ||
6845 | static int niu_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) | |
6846 | { | |
38bb045d CB |
6847 | struct niu *np = netdev_priv(dev); |
6848 | struct niu_link_config *lp = &np->link_config; | |
6849 | ||
6850 | lp->advertising = cmd->advertising; | |
6851 | lp->speed = cmd->speed; | |
6852 | lp->duplex = cmd->duplex; | |
6853 | lp->autoneg = cmd->autoneg; | |
6854 | return niu_init_link(np); | |
a3138df9 DM |
6855 | } |
6856 | ||
6857 | static u32 niu_get_msglevel(struct net_device *dev) | |
6858 | { | |
6859 | struct niu *np = netdev_priv(dev); | |
6860 | return np->msg_enable; | |
6861 | } | |
6862 | ||
6863 | static void niu_set_msglevel(struct net_device *dev, u32 value) | |
6864 | { | |
6865 | struct niu *np = netdev_priv(dev); | |
6866 | np->msg_enable = value; | |
6867 | } | |
6868 | ||
38bb045d CB |
6869 | static int niu_nway_reset(struct net_device *dev) |
6870 | { | |
6871 | struct niu *np = netdev_priv(dev); | |
6872 | ||
6873 | if (np->link_config.autoneg) | |
6874 | return niu_init_link(np); | |
6875 | ||
6876 | return 0; | |
6877 | } | |
6878 | ||
a3138df9 DM |
6879 | static int niu_get_eeprom_len(struct net_device *dev) |
6880 | { | |
6881 | struct niu *np = netdev_priv(dev); | |
6882 | ||
6883 | return np->eeprom_len; | |
6884 | } | |
6885 | ||
6886 | static int niu_get_eeprom(struct net_device *dev, | |
6887 | struct ethtool_eeprom *eeprom, u8 *data) | |
6888 | { | |
6889 | struct niu *np = netdev_priv(dev); | |
6890 | u32 offset, len, val; | |
6891 | ||
6892 | offset = eeprom->offset; | |
6893 | len = eeprom->len; | |
6894 | ||
6895 | if (offset + len < offset) | |
6896 | return -EINVAL; | |
6897 | if (offset >= np->eeprom_len) | |
6898 | return -EINVAL; | |
6899 | if (offset + len > np->eeprom_len) | |
6900 | len = eeprom->len = np->eeprom_len - offset; | |
6901 | ||
6902 | if (offset & 3) { | |
6903 | u32 b_offset, b_count; | |
6904 | ||
6905 | b_offset = offset & 3; | |
6906 | b_count = 4 - b_offset; | |
6907 | if (b_count > len) | |
6908 | b_count = len; | |
6909 | ||
6910 | val = nr64(ESPC_NCR((offset - b_offset) / 4)); | |
6911 | memcpy(data, ((char *)&val) + b_offset, b_count); | |
6912 | data += b_count; | |
6913 | len -= b_count; | |
6914 | offset += b_count; | |
6915 | } | |
6916 | while (len >= 4) { | |
6917 | val = nr64(ESPC_NCR(offset / 4)); | |
6918 | memcpy(data, &val, 4); | |
6919 | data += 4; | |
6920 | len -= 4; | |
6921 | offset += 4; | |
6922 | } | |
6923 | if (len) { | |
6924 | val = nr64(ESPC_NCR(offset / 4)); | |
6925 | memcpy(data, &val, len); | |
6926 | } | |
6927 | return 0; | |
6928 | } | |
6929 | ||
2d96cf8c SB |
6930 | static void niu_ethflow_to_l3proto(int flow_type, u8 *pid) |
6931 | { | |
6932 | switch (flow_type) { | |
6933 | case TCP_V4_FLOW: | |
6934 | case TCP_V6_FLOW: | |
6935 | *pid = IPPROTO_TCP; | |
6936 | break; | |
6937 | case UDP_V4_FLOW: | |
6938 | case UDP_V6_FLOW: | |
6939 | *pid = IPPROTO_UDP; | |
6940 | break; | |
6941 | case SCTP_V4_FLOW: | |
6942 | case SCTP_V6_FLOW: | |
6943 | *pid = IPPROTO_SCTP; | |
6944 | break; | |
6945 | case AH_V4_FLOW: | |
6946 | case AH_V6_FLOW: | |
6947 | *pid = IPPROTO_AH; | |
6948 | break; | |
6949 | case ESP_V4_FLOW: | |
6950 | case ESP_V6_FLOW: | |
6951 | *pid = IPPROTO_ESP; | |
6952 | break; | |
6953 | default: | |
6954 | *pid = 0; | |
6955 | break; | |
6956 | } | |
6957 | } | |
6958 | ||
6959 | static int niu_class_to_ethflow(u64 class, int *flow_type) | |
6960 | { | |
6961 | switch (class) { | |
6962 | case CLASS_CODE_TCP_IPV4: | |
6963 | *flow_type = TCP_V4_FLOW; | |
6964 | break; | |
6965 | case CLASS_CODE_UDP_IPV4: | |
6966 | *flow_type = UDP_V4_FLOW; | |
6967 | break; | |
6968 | case CLASS_CODE_AH_ESP_IPV4: | |
6969 | *flow_type = AH_V4_FLOW; | |
6970 | break; | |
6971 | case CLASS_CODE_SCTP_IPV4: | |
6972 | *flow_type = SCTP_V4_FLOW; | |
6973 | break; | |
6974 | case CLASS_CODE_TCP_IPV6: | |
6975 | *flow_type = TCP_V6_FLOW; | |
6976 | break; | |
6977 | case CLASS_CODE_UDP_IPV6: | |
6978 | *flow_type = UDP_V6_FLOW; | |
6979 | break; | |
6980 | case CLASS_CODE_AH_ESP_IPV6: | |
6981 | *flow_type = AH_V6_FLOW; | |
6982 | break; | |
6983 | case CLASS_CODE_SCTP_IPV6: | |
6984 | *flow_type = SCTP_V6_FLOW; | |
6985 | break; | |
6986 | case CLASS_CODE_USER_PROG1: | |
6987 | case CLASS_CODE_USER_PROG2: | |
6988 | case CLASS_CODE_USER_PROG3: | |
6989 | case CLASS_CODE_USER_PROG4: | |
6990 | *flow_type = IP_USER_FLOW; | |
6991 | break; | |
6992 | default: | |
6993 | return 0; | |
6994 | } | |
6995 | ||
6996 | return 1; | |
6997 | } | |
6998 | ||
b4653e99 SB |
6999 | static int niu_ethflow_to_class(int flow_type, u64 *class) |
7000 | { | |
7001 | switch (flow_type) { | |
7002 | case TCP_V4_FLOW: | |
7003 | *class = CLASS_CODE_TCP_IPV4; | |
7004 | break; | |
7005 | case UDP_V4_FLOW: | |
7006 | *class = CLASS_CODE_UDP_IPV4; | |
7007 | break; | |
2d96cf8c SB |
7008 | case AH_V4_FLOW: |
7009 | case ESP_V4_FLOW: | |
b4653e99 SB |
7010 | *class = CLASS_CODE_AH_ESP_IPV4; |
7011 | break; | |
7012 | case SCTP_V4_FLOW: | |
7013 | *class = CLASS_CODE_SCTP_IPV4; | |
7014 | break; | |
7015 | case TCP_V6_FLOW: | |
7016 | *class = CLASS_CODE_TCP_IPV6; | |
7017 | break; | |
7018 | case UDP_V6_FLOW: | |
7019 | *class = CLASS_CODE_UDP_IPV6; | |
7020 | break; | |
2d96cf8c SB |
7021 | case AH_V6_FLOW: |
7022 | case ESP_V6_FLOW: | |
b4653e99 SB |
7023 | *class = CLASS_CODE_AH_ESP_IPV6; |
7024 | break; | |
7025 | case SCTP_V6_FLOW: | |
7026 | *class = CLASS_CODE_SCTP_IPV6; | |
7027 | break; | |
7028 | default: | |
38c080ff | 7029 | return 0; |
b4653e99 SB |
7030 | } |
7031 | ||
7032 | return 1; | |
7033 | } | |
7034 | ||
7035 | static u64 niu_flowkey_to_ethflow(u64 flow_key) | |
7036 | { | |
7037 | u64 ethflow = 0; | |
7038 | ||
b4653e99 SB |
7039 | if (flow_key & FLOW_KEY_L2DA) |
7040 | ethflow |= RXH_L2DA; | |
7041 | if (flow_key & FLOW_KEY_VLAN) | |
7042 | ethflow |= RXH_VLAN; | |
7043 | if (flow_key & FLOW_KEY_IPSA) | |
7044 | ethflow |= RXH_IP_SRC; | |
7045 | if (flow_key & FLOW_KEY_IPDA) | |
7046 | ethflow |= RXH_IP_DST; | |
7047 | if (flow_key & FLOW_KEY_PROTO) | |
7048 | ethflow |= RXH_L3_PROTO; | |
7049 | if (flow_key & (FLOW_KEY_L4_BYTE12 << FLOW_KEY_L4_0_SHIFT)) | |
7050 | ethflow |= RXH_L4_B_0_1; | |
7051 | if (flow_key & (FLOW_KEY_L4_BYTE12 << FLOW_KEY_L4_1_SHIFT)) | |
7052 | ethflow |= RXH_L4_B_2_3; | |
7053 | ||
7054 | return ethflow; | |
7055 | ||
7056 | } | |
7057 | ||
7058 | static int niu_ethflow_to_flowkey(u64 ethflow, u64 *flow_key) | |
7059 | { | |
7060 | u64 key = 0; | |
7061 | ||
b4653e99 SB |
7062 | if (ethflow & RXH_L2DA) |
7063 | key |= FLOW_KEY_L2DA; | |
7064 | if (ethflow & RXH_VLAN) | |
7065 | key |= FLOW_KEY_VLAN; | |
7066 | if (ethflow & RXH_IP_SRC) | |
7067 | key |= FLOW_KEY_IPSA; | |
7068 | if (ethflow & RXH_IP_DST) | |
7069 | key |= FLOW_KEY_IPDA; | |
7070 | if (ethflow & RXH_L3_PROTO) | |
7071 | key |= FLOW_KEY_PROTO; | |
7072 | if (ethflow & RXH_L4_B_0_1) | |
7073 | key |= (FLOW_KEY_L4_BYTE12 << FLOW_KEY_L4_0_SHIFT); | |
7074 | if (ethflow & RXH_L4_B_2_3) | |
7075 | key |= (FLOW_KEY_L4_BYTE12 << FLOW_KEY_L4_1_SHIFT); | |
7076 | ||
7077 | *flow_key = key; | |
7078 | ||
7079 | return 1; | |
7080 | ||
7081 | } | |
7082 | ||
2d96cf8c | 7083 | static int niu_get_hash_opts(struct niu *np, struct ethtool_rxnfc *nfc) |
b4653e99 | 7084 | { |
b4653e99 SB |
7085 | u64 class; |
7086 | ||
2d96cf8c | 7087 | nfc->data = 0; |
b4653e99 | 7088 | |
2d96cf8c | 7089 | if (!niu_ethflow_to_class(nfc->flow_type, &class)) |
b4653e99 SB |
7090 | return -EINVAL; |
7091 | ||
7092 | if (np->parent->tcam_key[class - CLASS_CODE_USER_PROG1] & | |
7093 | TCAM_KEY_DISC) | |
2d96cf8c | 7094 | nfc->data = RXH_DISCARD; |
b4653e99 | 7095 | else |
2d96cf8c | 7096 | nfc->data = niu_flowkey_to_ethflow(np->parent->flow_key[class - |
b4653e99 SB |
7097 | CLASS_CODE_USER_PROG1]); |
7098 | return 0; | |
7099 | } | |
7100 | ||
2d96cf8c SB |
7101 | static void niu_get_ip4fs_from_tcam_key(struct niu_tcam_entry *tp, |
7102 | struct ethtool_rx_flow_spec *fsp) | |
7103 | { | |
7104 | ||
7105 | fsp->h_u.tcp_ip4_spec.ip4src = (tp->key[3] & TCAM_V4KEY3_SADDR) >> | |
7106 | TCAM_V4KEY3_SADDR_SHIFT; | |
7107 | fsp->h_u.tcp_ip4_spec.ip4dst = (tp->key[3] & TCAM_V4KEY3_DADDR) >> | |
7108 | TCAM_V4KEY3_DADDR_SHIFT; | |
7109 | fsp->m_u.tcp_ip4_spec.ip4src = (tp->key_mask[3] & TCAM_V4KEY3_SADDR) >> | |
7110 | TCAM_V4KEY3_SADDR_SHIFT; | |
7111 | fsp->m_u.tcp_ip4_spec.ip4dst = (tp->key_mask[3] & TCAM_V4KEY3_DADDR) >> | |
7112 | TCAM_V4KEY3_DADDR_SHIFT; | |
7113 | ||
7114 | fsp->h_u.tcp_ip4_spec.ip4src = | |
7115 | cpu_to_be32(fsp->h_u.tcp_ip4_spec.ip4src); | |
7116 | fsp->m_u.tcp_ip4_spec.ip4src = | |
7117 | cpu_to_be32(fsp->m_u.tcp_ip4_spec.ip4src); | |
7118 | fsp->h_u.tcp_ip4_spec.ip4dst = | |
7119 | cpu_to_be32(fsp->h_u.tcp_ip4_spec.ip4dst); | |
7120 | fsp->m_u.tcp_ip4_spec.ip4dst = | |
7121 | cpu_to_be32(fsp->m_u.tcp_ip4_spec.ip4dst); | |
7122 | ||
7123 | fsp->h_u.tcp_ip4_spec.tos = (tp->key[2] & TCAM_V4KEY2_TOS) >> | |
7124 | TCAM_V4KEY2_TOS_SHIFT; | |
7125 | fsp->m_u.tcp_ip4_spec.tos = (tp->key_mask[2] & TCAM_V4KEY2_TOS) >> | |
7126 | TCAM_V4KEY2_TOS_SHIFT; | |
7127 | ||
7128 | switch (fsp->flow_type) { | |
7129 | case TCP_V4_FLOW: | |
7130 | case UDP_V4_FLOW: | |
7131 | case SCTP_V4_FLOW: | |
7132 | fsp->h_u.tcp_ip4_spec.psrc = | |
7133 | ((tp->key[2] & TCAM_V4KEY2_PORT_SPI) >> | |
7134 | TCAM_V4KEY2_PORT_SPI_SHIFT) >> 16; | |
7135 | fsp->h_u.tcp_ip4_spec.pdst = | |
7136 | ((tp->key[2] & TCAM_V4KEY2_PORT_SPI) >> | |
7137 | TCAM_V4KEY2_PORT_SPI_SHIFT) & 0xffff; | |
7138 | fsp->m_u.tcp_ip4_spec.psrc = | |
7139 | ((tp->key_mask[2] & TCAM_V4KEY2_PORT_SPI) >> | |
7140 | TCAM_V4KEY2_PORT_SPI_SHIFT) >> 16; | |
7141 | fsp->m_u.tcp_ip4_spec.pdst = | |
7142 | ((tp->key_mask[2] & TCAM_V4KEY2_PORT_SPI) >> | |
7143 | TCAM_V4KEY2_PORT_SPI_SHIFT) & 0xffff; | |
7144 | ||
7145 | fsp->h_u.tcp_ip4_spec.psrc = | |
7146 | cpu_to_be16(fsp->h_u.tcp_ip4_spec.psrc); | |
7147 | fsp->h_u.tcp_ip4_spec.pdst = | |
7148 | cpu_to_be16(fsp->h_u.tcp_ip4_spec.pdst); | |
7149 | fsp->m_u.tcp_ip4_spec.psrc = | |
7150 | cpu_to_be16(fsp->m_u.tcp_ip4_spec.psrc); | |
7151 | fsp->m_u.tcp_ip4_spec.pdst = | |
7152 | cpu_to_be16(fsp->m_u.tcp_ip4_spec.pdst); | |
7153 | break; | |
7154 | case AH_V4_FLOW: | |
7155 | case ESP_V4_FLOW: | |
7156 | fsp->h_u.ah_ip4_spec.spi = | |
7157 | (tp->key[2] & TCAM_V4KEY2_PORT_SPI) >> | |
7158 | TCAM_V4KEY2_PORT_SPI_SHIFT; | |
7159 | fsp->m_u.ah_ip4_spec.spi = | |
7160 | (tp->key_mask[2] & TCAM_V4KEY2_PORT_SPI) >> | |
7161 | TCAM_V4KEY2_PORT_SPI_SHIFT; | |
7162 | ||
7163 | fsp->h_u.ah_ip4_spec.spi = | |
7164 | cpu_to_be32(fsp->h_u.ah_ip4_spec.spi); | |
7165 | fsp->m_u.ah_ip4_spec.spi = | |
7166 | cpu_to_be32(fsp->m_u.ah_ip4_spec.spi); | |
7167 | break; | |
7168 | case IP_USER_FLOW: | |
7169 | fsp->h_u.usr_ip4_spec.l4_4_bytes = | |
7170 | (tp->key[2] & TCAM_V4KEY2_PORT_SPI) >> | |
7171 | TCAM_V4KEY2_PORT_SPI_SHIFT; | |
7172 | fsp->m_u.usr_ip4_spec.l4_4_bytes = | |
7173 | (tp->key_mask[2] & TCAM_V4KEY2_PORT_SPI) >> | |
7174 | TCAM_V4KEY2_PORT_SPI_SHIFT; | |
7175 | ||
7176 | fsp->h_u.usr_ip4_spec.l4_4_bytes = | |
7177 | cpu_to_be32(fsp->h_u.usr_ip4_spec.l4_4_bytes); | |
7178 | fsp->m_u.usr_ip4_spec.l4_4_bytes = | |
7179 | cpu_to_be32(fsp->m_u.usr_ip4_spec.l4_4_bytes); | |
7180 | ||
7181 | fsp->h_u.usr_ip4_spec.proto = | |
7182 | (tp->key[2] & TCAM_V4KEY2_PROTO) >> | |
7183 | TCAM_V4KEY2_PROTO_SHIFT; | |
7184 | fsp->m_u.usr_ip4_spec.proto = | |
7185 | (tp->key_mask[2] & TCAM_V4KEY2_PROTO) >> | |
7186 | TCAM_V4KEY2_PROTO_SHIFT; | |
7187 | ||
7188 | fsp->h_u.usr_ip4_spec.ip_ver = ETH_RX_NFC_IP4; | |
7189 | break; | |
7190 | default: | |
7191 | break; | |
7192 | } | |
7193 | } | |
7194 | ||
7195 | static int niu_get_ethtool_tcam_entry(struct niu *np, | |
7196 | struct ethtool_rxnfc *nfc) | |
7197 | { | |
7198 | struct niu_parent *parent = np->parent; | |
7199 | struct niu_tcam_entry *tp; | |
7200 | struct ethtool_rx_flow_spec *fsp = &nfc->fs; | |
7201 | u16 idx; | |
7202 | u64 class; | |
7203 | int ret = 0; | |
7204 | ||
7205 | idx = tcam_get_index(np, (u16)nfc->fs.location); | |
7206 | ||
7207 | tp = &parent->tcam[idx]; | |
7208 | if (!tp->valid) { | |
7209 | pr_info(PFX "niu%d: %s entry [%d] invalid for idx[%d]\n", | |
7210 | parent->index, np->dev->name, (u16)nfc->fs.location, idx); | |
7211 | return -EINVAL; | |
7212 | } | |
7213 | ||
7214 | /* fill the flow spec entry */ | |
7215 | class = (tp->key[0] & TCAM_V4KEY0_CLASS_CODE) >> | |
7216 | TCAM_V4KEY0_CLASS_CODE_SHIFT; | |
7217 | ret = niu_class_to_ethflow(class, &fsp->flow_type); | |
7218 | ||
7219 | if (ret < 0) { | |
7220 | pr_info(PFX "niu%d: %s niu_class_to_ethflow failed\n", | |
7221 | parent->index, np->dev->name); | |
7222 | ret = -EINVAL; | |
7223 | goto out; | |
7224 | } | |
7225 | ||
7226 | if (fsp->flow_type == AH_V4_FLOW || fsp->flow_type == AH_V6_FLOW) { | |
7227 | u32 proto = (tp->key[2] & TCAM_V4KEY2_PROTO) >> | |
7228 | TCAM_V4KEY2_PROTO_SHIFT; | |
7229 | if (proto == IPPROTO_ESP) { | |
7230 | if (fsp->flow_type == AH_V4_FLOW) | |
7231 | fsp->flow_type = ESP_V4_FLOW; | |
7232 | else | |
7233 | fsp->flow_type = ESP_V6_FLOW; | |
7234 | } | |
7235 | } | |
7236 | ||
7237 | switch (fsp->flow_type) { | |
7238 | case TCP_V4_FLOW: | |
7239 | case UDP_V4_FLOW: | |
7240 | case SCTP_V4_FLOW: | |
7241 | case AH_V4_FLOW: | |
7242 | case ESP_V4_FLOW: | |
7243 | niu_get_ip4fs_from_tcam_key(tp, fsp); | |
7244 | break; | |
7245 | case TCP_V6_FLOW: | |
7246 | case UDP_V6_FLOW: | |
7247 | case SCTP_V6_FLOW: | |
7248 | case AH_V6_FLOW: | |
7249 | case ESP_V6_FLOW: | |
7250 | /* Not yet implemented */ | |
7251 | ret = -EINVAL; | |
7252 | break; | |
7253 | case IP_USER_FLOW: | |
7254 | niu_get_ip4fs_from_tcam_key(tp, fsp); | |
7255 | break; | |
7256 | default: | |
7257 | ret = -EINVAL; | |
7258 | break; | |
7259 | } | |
7260 | ||
7261 | if (ret < 0) | |
7262 | goto out; | |
7263 | ||
7264 | if (tp->assoc_data & TCAM_ASSOCDATA_DISC) | |
7265 | fsp->ring_cookie = RX_CLS_FLOW_DISC; | |
7266 | else | |
7267 | fsp->ring_cookie = (tp->assoc_data & TCAM_ASSOCDATA_OFFSET) >> | |
7268 | TCAM_ASSOCDATA_OFFSET_SHIFT; | |
7269 | ||
7270 | /* put the tcam size here */ | |
7271 | nfc->data = tcam_get_size(np); | |
7272 | out: | |
7273 | return ret; | |
7274 | } | |
7275 | ||
7276 | static int niu_get_ethtool_tcam_all(struct niu *np, | |
7277 | struct ethtool_rxnfc *nfc, | |
7278 | u32 *rule_locs) | |
7279 | { | |
7280 | struct niu_parent *parent = np->parent; | |
7281 | struct niu_tcam_entry *tp; | |
7282 | int i, idx, cnt; | |
7283 | u16 n_entries; | |
7284 | unsigned long flags; | |
7285 | ||
7286 | ||
7287 | /* put the tcam size here */ | |
7288 | nfc->data = tcam_get_size(np); | |
7289 | ||
7290 | niu_lock_parent(np, flags); | |
7291 | n_entries = nfc->rule_cnt; | |
7292 | for (cnt = 0, i = 0; i < nfc->data; i++) { | |
7293 | idx = tcam_get_index(np, i); | |
7294 | tp = &parent->tcam[idx]; | |
7295 | if (!tp->valid) | |
7296 | continue; | |
7297 | rule_locs[cnt] = i; | |
7298 | cnt++; | |
7299 | } | |
7300 | niu_unlock_parent(np, flags); | |
7301 | ||
7302 | if (n_entries != cnt) { | |
7303 | /* print warning, this should not happen */ | |
7304 | pr_info(PFX "niu%d: %s In niu_get_ethtool_tcam_all, " | |
7305 | "n_entries[%d] != cnt[%d]!!!\n\n", | |
7306 | np->parent->index, np->dev->name, n_entries, cnt); | |
7307 | } | |
7308 | ||
7309 | return 0; | |
7310 | } | |
7311 | ||
7312 | static int niu_get_nfc(struct net_device *dev, struct ethtool_rxnfc *cmd, | |
7313 | void *rule_locs) | |
b4653e99 SB |
7314 | { |
7315 | struct niu *np = netdev_priv(dev); | |
2d96cf8c SB |
7316 | int ret = 0; |
7317 | ||
7318 | switch (cmd->cmd) { | |
7319 | case ETHTOOL_GRXFH: | |
7320 | ret = niu_get_hash_opts(np, cmd); | |
7321 | break; | |
7322 | case ETHTOOL_GRXRINGS: | |
7323 | cmd->data = np->num_rx_rings; | |
7324 | break; | |
7325 | case ETHTOOL_GRXCLSRLCNT: | |
7326 | cmd->rule_cnt = tcam_get_valid_entry_cnt(np); | |
7327 | break; | |
7328 | case ETHTOOL_GRXCLSRULE: | |
7329 | ret = niu_get_ethtool_tcam_entry(np, cmd); | |
7330 | break; | |
7331 | case ETHTOOL_GRXCLSRLALL: | |
7332 | ret = niu_get_ethtool_tcam_all(np, cmd, (u32 *)rule_locs); | |
7333 | break; | |
7334 | default: | |
7335 | ret = -EINVAL; | |
7336 | break; | |
7337 | } | |
7338 | ||
7339 | return ret; | |
7340 | } | |
7341 | ||
7342 | static int niu_set_hash_opts(struct niu *np, struct ethtool_rxnfc *nfc) | |
7343 | { | |
b4653e99 SB |
7344 | u64 class; |
7345 | u64 flow_key = 0; | |
7346 | unsigned long flags; | |
7347 | ||
2d96cf8c | 7348 | if (!niu_ethflow_to_class(nfc->flow_type, &class)) |
b4653e99 SB |
7349 | return -EINVAL; |
7350 | ||
7351 | if (class < CLASS_CODE_USER_PROG1 || | |
7352 | class > CLASS_CODE_SCTP_IPV6) | |
7353 | return -EINVAL; | |
7354 | ||
2d96cf8c | 7355 | if (nfc->data & RXH_DISCARD) { |
b4653e99 SB |
7356 | niu_lock_parent(np, flags); |
7357 | flow_key = np->parent->tcam_key[class - | |
7358 | CLASS_CODE_USER_PROG1]; | |
7359 | flow_key |= TCAM_KEY_DISC; | |
7360 | nw64(TCAM_KEY(class - CLASS_CODE_USER_PROG1), flow_key); | |
7361 | np->parent->tcam_key[class - CLASS_CODE_USER_PROG1] = flow_key; | |
7362 | niu_unlock_parent(np, flags); | |
7363 | return 0; | |
7364 | } else { | |
7365 | /* Discard was set before, but is not set now */ | |
7366 | if (np->parent->tcam_key[class - CLASS_CODE_USER_PROG1] & | |
7367 | TCAM_KEY_DISC) { | |
7368 | niu_lock_parent(np, flags); | |
7369 | flow_key = np->parent->tcam_key[class - | |
7370 | CLASS_CODE_USER_PROG1]; | |
7371 | flow_key &= ~TCAM_KEY_DISC; | |
7372 | nw64(TCAM_KEY(class - CLASS_CODE_USER_PROG1), | |
7373 | flow_key); | |
7374 | np->parent->tcam_key[class - CLASS_CODE_USER_PROG1] = | |
7375 | flow_key; | |
7376 | niu_unlock_parent(np, flags); | |
7377 | } | |
7378 | } | |
7379 | ||
2d96cf8c | 7380 | if (!niu_ethflow_to_flowkey(nfc->data, &flow_key)) |
b4653e99 SB |
7381 | return -EINVAL; |
7382 | ||
7383 | niu_lock_parent(np, flags); | |
7384 | nw64(FLOW_KEY(class - CLASS_CODE_USER_PROG1), flow_key); | |
7385 | np->parent->flow_key[class - CLASS_CODE_USER_PROG1] = flow_key; | |
7386 | niu_unlock_parent(np, flags); | |
7387 | ||
7388 | return 0; | |
7389 | } | |
7390 | ||
2d96cf8c SB |
7391 | static void niu_get_tcamkey_from_ip4fs(struct ethtool_rx_flow_spec *fsp, |
7392 | struct niu_tcam_entry *tp, | |
7393 | int l2_rdc_tab, u64 class) | |
7394 | { | |
7395 | u8 pid = 0; | |
7396 | u32 sip, dip, sipm, dipm, spi, spim; | |
7397 | u16 sport, dport, spm, dpm; | |
7398 | ||
7399 | sip = be32_to_cpu(fsp->h_u.tcp_ip4_spec.ip4src); | |
7400 | sipm = be32_to_cpu(fsp->m_u.tcp_ip4_spec.ip4src); | |
7401 | dip = be32_to_cpu(fsp->h_u.tcp_ip4_spec.ip4dst); | |
7402 | dipm = be32_to_cpu(fsp->m_u.tcp_ip4_spec.ip4dst); | |
7403 | ||
7404 | tp->key[0] = class << TCAM_V4KEY0_CLASS_CODE_SHIFT; | |
7405 | tp->key_mask[0] = TCAM_V4KEY0_CLASS_CODE; | |
7406 | tp->key[1] = (u64)l2_rdc_tab << TCAM_V4KEY1_L2RDCNUM_SHIFT; | |
7407 | tp->key_mask[1] = TCAM_V4KEY1_L2RDCNUM; | |
7408 | ||
7409 | tp->key[3] = (u64)sip << TCAM_V4KEY3_SADDR_SHIFT; | |
7410 | tp->key[3] |= dip; | |
7411 | ||
7412 | tp->key_mask[3] = (u64)sipm << TCAM_V4KEY3_SADDR_SHIFT; | |
7413 | tp->key_mask[3] |= dipm; | |
7414 | ||
7415 | tp->key[2] |= ((u64)fsp->h_u.tcp_ip4_spec.tos << | |
7416 | TCAM_V4KEY2_TOS_SHIFT); | |
7417 | tp->key_mask[2] |= ((u64)fsp->m_u.tcp_ip4_spec.tos << | |
7418 | TCAM_V4KEY2_TOS_SHIFT); | |
7419 | switch (fsp->flow_type) { | |
7420 | case TCP_V4_FLOW: | |
7421 | case UDP_V4_FLOW: | |
7422 | case SCTP_V4_FLOW: | |
7423 | sport = be16_to_cpu(fsp->h_u.tcp_ip4_spec.psrc); | |
7424 | spm = be16_to_cpu(fsp->m_u.tcp_ip4_spec.psrc); | |
7425 | dport = be16_to_cpu(fsp->h_u.tcp_ip4_spec.pdst); | |
7426 | dpm = be16_to_cpu(fsp->m_u.tcp_ip4_spec.pdst); | |
7427 | ||
7428 | tp->key[2] |= (((u64)sport << 16) | dport); | |
7429 | tp->key_mask[2] |= (((u64)spm << 16) | dpm); | |
7430 | niu_ethflow_to_l3proto(fsp->flow_type, &pid); | |
7431 | break; | |
7432 | case AH_V4_FLOW: | |
7433 | case ESP_V4_FLOW: | |
7434 | spi = be32_to_cpu(fsp->h_u.ah_ip4_spec.spi); | |
7435 | spim = be32_to_cpu(fsp->m_u.ah_ip4_spec.spi); | |
7436 | ||
7437 | tp->key[2] |= spi; | |
7438 | tp->key_mask[2] |= spim; | |
7439 | niu_ethflow_to_l3proto(fsp->flow_type, &pid); | |
7440 | break; | |
7441 | case IP_USER_FLOW: | |
7442 | spi = be32_to_cpu(fsp->h_u.usr_ip4_spec.l4_4_bytes); | |
7443 | spim = be32_to_cpu(fsp->m_u.usr_ip4_spec.l4_4_bytes); | |
7444 | ||
7445 | tp->key[2] |= spi; | |
7446 | tp->key_mask[2] |= spim; | |
7447 | pid = fsp->h_u.usr_ip4_spec.proto; | |
7448 | break; | |
7449 | default: | |
7450 | break; | |
7451 | } | |
7452 | ||
7453 | tp->key[2] |= ((u64)pid << TCAM_V4KEY2_PROTO_SHIFT); | |
7454 | if (pid) { | |
7455 | tp->key_mask[2] |= TCAM_V4KEY2_PROTO; | |
7456 | } | |
7457 | } | |
7458 | ||
7459 | static int niu_add_ethtool_tcam_entry(struct niu *np, | |
7460 | struct ethtool_rxnfc *nfc) | |
7461 | { | |
7462 | struct niu_parent *parent = np->parent; | |
7463 | struct niu_tcam_entry *tp; | |
7464 | struct ethtool_rx_flow_spec *fsp = &nfc->fs; | |
7465 | struct niu_rdc_tables *rdc_table = &parent->rdc_group_cfg[np->port]; | |
7466 | int l2_rdc_table = rdc_table->first_table_num; | |
7467 | u16 idx; | |
7468 | u64 class; | |
7469 | unsigned long flags; | |
7470 | int err, ret; | |
7471 | ||
7472 | ret = 0; | |
7473 | ||
7474 | idx = nfc->fs.location; | |
7475 | if (idx >= tcam_get_size(np)) | |
7476 | return -EINVAL; | |
7477 | ||
7478 | if (fsp->flow_type == IP_USER_FLOW) { | |
7479 | int i; | |
7480 | int add_usr_cls = 0; | |
7481 | int ipv6 = 0; | |
7482 | struct ethtool_usrip4_spec *uspec = &fsp->h_u.usr_ip4_spec; | |
7483 | struct ethtool_usrip4_spec *umask = &fsp->m_u.usr_ip4_spec; | |
7484 | ||
7485 | niu_lock_parent(np, flags); | |
7486 | ||
7487 | for (i = 0; i < NIU_L3_PROG_CLS; i++) { | |
7488 | if (parent->l3_cls[i]) { | |
7489 | if (uspec->proto == parent->l3_cls_pid[i]) { | |
7490 | class = parent->l3_cls[i]; | |
7491 | parent->l3_cls_refcnt[i]++; | |
7492 | add_usr_cls = 1; | |
7493 | break; | |
7494 | } | |
7495 | } else { | |
7496 | /* Program new user IP class */ | |
7497 | switch (i) { | |
7498 | case 0: | |
7499 | class = CLASS_CODE_USER_PROG1; | |
7500 | break; | |
7501 | case 1: | |
7502 | class = CLASS_CODE_USER_PROG2; | |
7503 | break; | |
7504 | case 2: | |
7505 | class = CLASS_CODE_USER_PROG3; | |
7506 | break; | |
7507 | case 3: | |
7508 | class = CLASS_CODE_USER_PROG4; | |
7509 | break; | |
7510 | default: | |
7511 | break; | |
7512 | } | |
7513 | if (uspec->ip_ver == ETH_RX_NFC_IP6) | |
7514 | ipv6 = 1; | |
7515 | ret = tcam_user_ip_class_set(np, class, ipv6, | |
7516 | uspec->proto, | |
7517 | uspec->tos, | |
7518 | umask->tos); | |
7519 | if (ret) | |
7520 | goto out; | |
7521 | ||
7522 | ret = tcam_user_ip_class_enable(np, class, 1); | |
7523 | if (ret) | |
7524 | goto out; | |
7525 | parent->l3_cls[i] = class; | |
7526 | parent->l3_cls_pid[i] = uspec->proto; | |
7527 | parent->l3_cls_refcnt[i]++; | |
7528 | add_usr_cls = 1; | |
7529 | break; | |
7530 | } | |
7531 | } | |
7532 | if (!add_usr_cls) { | |
7533 | pr_info(PFX "niu%d: %s niu_add_ethtool_tcam_entry: " | |
7534 | "Could not find/insert class for pid %d\n", | |
7535 | parent->index, np->dev->name, uspec->proto); | |
7536 | ret = -EINVAL; | |
7537 | goto out; | |
7538 | } | |
7539 | niu_unlock_parent(np, flags); | |
7540 | } else { | |
7541 | if (!niu_ethflow_to_class(fsp->flow_type, &class)) { | |
7542 | return -EINVAL; | |
7543 | } | |
7544 | } | |
7545 | ||
7546 | niu_lock_parent(np, flags); | |
7547 | ||
7548 | idx = tcam_get_index(np, idx); | |
7549 | tp = &parent->tcam[idx]; | |
7550 | ||
7551 | memset(tp, 0, sizeof(*tp)); | |
7552 | ||
7553 | /* fill in the tcam key and mask */ | |
7554 | switch (fsp->flow_type) { | |
7555 | case TCP_V4_FLOW: | |
7556 | case UDP_V4_FLOW: | |
7557 | case SCTP_V4_FLOW: | |
7558 | case AH_V4_FLOW: | |
7559 | case ESP_V4_FLOW: | |
7560 | niu_get_tcamkey_from_ip4fs(fsp, tp, l2_rdc_table, class); | |
7561 | break; | |
7562 | case TCP_V6_FLOW: | |
7563 | case UDP_V6_FLOW: | |
7564 | case SCTP_V6_FLOW: | |
7565 | case AH_V6_FLOW: | |
7566 | case ESP_V6_FLOW: | |
7567 | /* Not yet implemented */ | |
7568 | pr_info(PFX "niu%d: %s In niu_add_ethtool_tcam_entry: " | |
7569 | "flow %d for IPv6 not implemented\n\n", | |
7570 | parent->index, np->dev->name, fsp->flow_type); | |
7571 | ret = -EINVAL; | |
7572 | goto out; | |
7573 | case IP_USER_FLOW: | |
7574 | if (fsp->h_u.usr_ip4_spec.ip_ver == ETH_RX_NFC_IP4) { | |
7575 | niu_get_tcamkey_from_ip4fs(fsp, tp, l2_rdc_table, | |
7576 | class); | |
7577 | } else { | |
7578 | /* Not yet implemented */ | |
7579 | pr_info(PFX "niu%d: %s In niu_add_ethtool_tcam_entry: " | |
7580 | "usr flow for IPv6 not implemented\n\n", | |
7581 | parent->index, np->dev->name); | |
7582 | ret = -EINVAL; | |
7583 | goto out; | |
7584 | } | |
7585 | break; | |
7586 | default: | |
7587 | pr_info(PFX "niu%d: %s In niu_add_ethtool_tcam_entry: " | |
7588 | "Unknown flow type %d\n\n", | |
7589 | parent->index, np->dev->name, fsp->flow_type); | |
7590 | ret = -EINVAL; | |
7591 | goto out; | |
7592 | } | |
7593 | ||
7594 | /* fill in the assoc data */ | |
7595 | if (fsp->ring_cookie == RX_CLS_FLOW_DISC) { | |
7596 | tp->assoc_data = TCAM_ASSOCDATA_DISC; | |
7597 | } else { | |
7598 | if (fsp->ring_cookie >= np->num_rx_rings) { | |
7599 | pr_info(PFX "niu%d: %s In niu_add_ethtool_tcam_entry: " | |
7600 | "Invalid RX ring %lld\n\n", | |
7601 | parent->index, np->dev->name, | |
7602 | (long long) fsp->ring_cookie); | |
7603 | ret = -EINVAL; | |
7604 | goto out; | |
7605 | } | |
7606 | tp->assoc_data = (TCAM_ASSOCDATA_TRES_USE_OFFSET | | |
7607 | (fsp->ring_cookie << | |
7608 | TCAM_ASSOCDATA_OFFSET_SHIFT)); | |
7609 | } | |
7610 | ||
7611 | err = tcam_write(np, idx, tp->key, tp->key_mask); | |
7612 | if (err) { | |
7613 | ret = -EINVAL; | |
7614 | goto out; | |
7615 | } | |
7616 | err = tcam_assoc_write(np, idx, tp->assoc_data); | |
7617 | if (err) { | |
7618 | ret = -EINVAL; | |
7619 | goto out; | |
7620 | } | |
7621 | ||
7622 | /* validate the entry */ | |
7623 | tp->valid = 1; | |
7624 | np->clas.tcam_valid_entries++; | |
7625 | out: | |
7626 | niu_unlock_parent(np, flags); | |
7627 | ||
7628 | return ret; | |
7629 | } | |
7630 | ||
7631 | static int niu_del_ethtool_tcam_entry(struct niu *np, u32 loc) | |
7632 | { | |
7633 | struct niu_parent *parent = np->parent; | |
7634 | struct niu_tcam_entry *tp; | |
7635 | u16 idx; | |
7636 | unsigned long flags; | |
7637 | u64 class; | |
7638 | int ret = 0; | |
7639 | ||
7640 | if (loc >= tcam_get_size(np)) | |
7641 | return -EINVAL; | |
7642 | ||
7643 | niu_lock_parent(np, flags); | |
7644 | ||
7645 | idx = tcam_get_index(np, loc); | |
7646 | tp = &parent->tcam[idx]; | |
7647 | ||
7648 | /* if the entry is of a user defined class, then update*/ | |
7649 | class = (tp->key[0] & TCAM_V4KEY0_CLASS_CODE) >> | |
7650 | TCAM_V4KEY0_CLASS_CODE_SHIFT; | |
7651 | ||
7652 | if (class >= CLASS_CODE_USER_PROG1 && class <= CLASS_CODE_USER_PROG4) { | |
7653 | int i; | |
7654 | for (i = 0; i < NIU_L3_PROG_CLS; i++) { | |
7655 | if (parent->l3_cls[i] == class) { | |
7656 | parent->l3_cls_refcnt[i]--; | |
7657 | if (!parent->l3_cls_refcnt[i]) { | |
7658 | /* disable class */ | |
7659 | ret = tcam_user_ip_class_enable(np, | |
7660 | class, | |
7661 | 0); | |
7662 | if (ret) | |
7663 | goto out; | |
7664 | parent->l3_cls[i] = 0; | |
7665 | parent->l3_cls_pid[i] = 0; | |
7666 | } | |
7667 | break; | |
7668 | } | |
7669 | } | |
7670 | if (i == NIU_L3_PROG_CLS) { | |
7671 | pr_info(PFX "niu%d: %s In niu_del_ethtool_tcam_entry," | |
7672 | "Usr class 0x%llx not found \n", | |
7673 | parent->index, np->dev->name, | |
7674 | (unsigned long long) class); | |
7675 | ret = -EINVAL; | |
7676 | goto out; | |
7677 | } | |
7678 | } | |
7679 | ||
7680 | ret = tcam_flush(np, idx); | |
7681 | if (ret) | |
7682 | goto out; | |
7683 | ||
7684 | /* invalidate the entry */ | |
7685 | tp->valid = 0; | |
7686 | np->clas.tcam_valid_entries--; | |
7687 | out: | |
7688 | niu_unlock_parent(np, flags); | |
7689 | ||
7690 | return ret; | |
7691 | } | |
7692 | ||
7693 | static int niu_set_nfc(struct net_device *dev, struct ethtool_rxnfc *cmd) | |
7694 | { | |
7695 | struct niu *np = netdev_priv(dev); | |
7696 | int ret = 0; | |
7697 | ||
7698 | switch (cmd->cmd) { | |
7699 | case ETHTOOL_SRXFH: | |
7700 | ret = niu_set_hash_opts(np, cmd); | |
7701 | break; | |
7702 | case ETHTOOL_SRXCLSRLINS: | |
7703 | ret = niu_add_ethtool_tcam_entry(np, cmd); | |
7704 | break; | |
7705 | case ETHTOOL_SRXCLSRLDEL: | |
7706 | ret = niu_del_ethtool_tcam_entry(np, cmd->fs.location); | |
7707 | break; | |
7708 | default: | |
7709 | ret = -EINVAL; | |
7710 | break; | |
7711 | } | |
7712 | ||
7713 | return ret; | |
7714 | } | |
7715 | ||
a3138df9 DM |
7716 | static const struct { |
7717 | const char string[ETH_GSTRING_LEN]; | |
7718 | } niu_xmac_stat_keys[] = { | |
7719 | { "tx_frames" }, | |
7720 | { "tx_bytes" }, | |
7721 | { "tx_fifo_errors" }, | |
7722 | { "tx_overflow_errors" }, | |
7723 | { "tx_max_pkt_size_errors" }, | |
7724 | { "tx_underflow_errors" }, | |
7725 | { "rx_local_faults" }, | |
7726 | { "rx_remote_faults" }, | |
7727 | { "rx_link_faults" }, | |
7728 | { "rx_align_errors" }, | |
7729 | { "rx_frags" }, | |
7730 | { "rx_mcasts" }, | |
7731 | { "rx_bcasts" }, | |
7732 | { "rx_hist_cnt1" }, | |
7733 | { "rx_hist_cnt2" }, | |
7734 | { "rx_hist_cnt3" }, | |
7735 | { "rx_hist_cnt4" }, | |
7736 | { "rx_hist_cnt5" }, | |
7737 | { "rx_hist_cnt6" }, | |
7738 | { "rx_hist_cnt7" }, | |
7739 | { "rx_octets" }, | |
7740 | { "rx_code_violations" }, | |
7741 | { "rx_len_errors" }, | |
7742 | { "rx_crc_errors" }, | |
7743 | { "rx_underflows" }, | |
7744 | { "rx_overflows" }, | |
7745 | { "pause_off_state" }, | |
7746 | { "pause_on_state" }, | |
7747 | { "pause_received" }, | |
7748 | }; | |
7749 | ||
7750 | #define NUM_XMAC_STAT_KEYS ARRAY_SIZE(niu_xmac_stat_keys) | |
7751 | ||
7752 | static const struct { | |
7753 | const char string[ETH_GSTRING_LEN]; | |
7754 | } niu_bmac_stat_keys[] = { | |
7755 | { "tx_underflow_errors" }, | |
7756 | { "tx_max_pkt_size_errors" }, | |
7757 | { "tx_bytes" }, | |
7758 | { "tx_frames" }, | |
7759 | { "rx_overflows" }, | |
7760 | { "rx_frames" }, | |
7761 | { "rx_align_errors" }, | |
7762 | { "rx_crc_errors" }, | |
7763 | { "rx_len_errors" }, | |
7764 | { "pause_off_state" }, | |
7765 | { "pause_on_state" }, | |
7766 | { "pause_received" }, | |
7767 | }; | |
7768 | ||
7769 | #define NUM_BMAC_STAT_KEYS ARRAY_SIZE(niu_bmac_stat_keys) | |
7770 | ||
7771 | static const struct { | |
7772 | const char string[ETH_GSTRING_LEN]; | |
7773 | } niu_rxchan_stat_keys[] = { | |
7774 | { "rx_channel" }, | |
7775 | { "rx_packets" }, | |
7776 | { "rx_bytes" }, | |
7777 | { "rx_dropped" }, | |
7778 | { "rx_errors" }, | |
7779 | }; | |
7780 | ||
7781 | #define NUM_RXCHAN_STAT_KEYS ARRAY_SIZE(niu_rxchan_stat_keys) | |
7782 | ||
7783 | static const struct { | |
7784 | const char string[ETH_GSTRING_LEN]; | |
7785 | } niu_txchan_stat_keys[] = { | |
7786 | { "tx_channel" }, | |
7787 | { "tx_packets" }, | |
7788 | { "tx_bytes" }, | |
7789 | { "tx_errors" }, | |
7790 | }; | |
7791 | ||
7792 | #define NUM_TXCHAN_STAT_KEYS ARRAY_SIZE(niu_txchan_stat_keys) | |
7793 | ||
7794 | static void niu_get_strings(struct net_device *dev, u32 stringset, u8 *data) | |
7795 | { | |
7796 | struct niu *np = netdev_priv(dev); | |
7797 | int i; | |
7798 | ||
7799 | if (stringset != ETH_SS_STATS) | |
7800 | return; | |
7801 | ||
7802 | if (np->flags & NIU_FLAGS_XMAC) { | |
7803 | memcpy(data, niu_xmac_stat_keys, | |
7804 | sizeof(niu_xmac_stat_keys)); | |
7805 | data += sizeof(niu_xmac_stat_keys); | |
7806 | } else { | |
7807 | memcpy(data, niu_bmac_stat_keys, | |
7808 | sizeof(niu_bmac_stat_keys)); | |
7809 | data += sizeof(niu_bmac_stat_keys); | |
7810 | } | |
7811 | for (i = 0; i < np->num_rx_rings; i++) { | |
7812 | memcpy(data, niu_rxchan_stat_keys, | |
7813 | sizeof(niu_rxchan_stat_keys)); | |
7814 | data += sizeof(niu_rxchan_stat_keys); | |
7815 | } | |
7816 | for (i = 0; i < np->num_tx_rings; i++) { | |
7817 | memcpy(data, niu_txchan_stat_keys, | |
7818 | sizeof(niu_txchan_stat_keys)); | |
7819 | data += sizeof(niu_txchan_stat_keys); | |
7820 | } | |
7821 | } | |
7822 | ||
7823 | static int niu_get_stats_count(struct net_device *dev) | |
7824 | { | |
7825 | struct niu *np = netdev_priv(dev); | |
7826 | ||
7827 | return ((np->flags & NIU_FLAGS_XMAC ? | |
7828 | NUM_XMAC_STAT_KEYS : | |
7829 | NUM_BMAC_STAT_KEYS) + | |
7830 | (np->num_rx_rings * NUM_RXCHAN_STAT_KEYS) + | |
7831 | (np->num_tx_rings * NUM_TXCHAN_STAT_KEYS)); | |
7832 | } | |
7833 | ||
7834 | static void niu_get_ethtool_stats(struct net_device *dev, | |
7835 | struct ethtool_stats *stats, u64 *data) | |
7836 | { | |
7837 | struct niu *np = netdev_priv(dev); | |
7838 | int i; | |
7839 | ||
7840 | niu_sync_mac_stats(np); | |
7841 | if (np->flags & NIU_FLAGS_XMAC) { | |
7842 | memcpy(data, &np->mac_stats.xmac, | |
7843 | sizeof(struct niu_xmac_stats)); | |
7844 | data += (sizeof(struct niu_xmac_stats) / sizeof(u64)); | |
7845 | } else { | |
7846 | memcpy(data, &np->mac_stats.bmac, | |
7847 | sizeof(struct niu_bmac_stats)); | |
7848 | data += (sizeof(struct niu_bmac_stats) / sizeof(u64)); | |
7849 | } | |
7850 | for (i = 0; i < np->num_rx_rings; i++) { | |
7851 | struct rx_ring_info *rp = &np->rx_rings[i]; | |
7852 | ||
b8a606b8 JDB |
7853 | niu_sync_rx_discard_stats(np, rp, 0); |
7854 | ||
a3138df9 DM |
7855 | data[0] = rp->rx_channel; |
7856 | data[1] = rp->rx_packets; | |
7857 | data[2] = rp->rx_bytes; | |
7858 | data[3] = rp->rx_dropped; | |
7859 | data[4] = rp->rx_errors; | |
7860 | data += 5; | |
7861 | } | |
7862 | for (i = 0; i < np->num_tx_rings; i++) { | |
7863 | struct tx_ring_info *rp = &np->tx_rings[i]; | |
7864 | ||
7865 | data[0] = rp->tx_channel; | |
7866 | data[1] = rp->tx_packets; | |
7867 | data[2] = rp->tx_bytes; | |
7868 | data[3] = rp->tx_errors; | |
7869 | data += 4; | |
7870 | } | |
7871 | } | |
7872 | ||
7873 | static u64 niu_led_state_save(struct niu *np) | |
7874 | { | |
7875 | if (np->flags & NIU_FLAGS_XMAC) | |
7876 | return nr64_mac(XMAC_CONFIG); | |
7877 | else | |
7878 | return nr64_mac(BMAC_XIF_CONFIG); | |
7879 | } | |
7880 | ||
7881 | static void niu_led_state_restore(struct niu *np, u64 val) | |
7882 | { | |
7883 | if (np->flags & NIU_FLAGS_XMAC) | |
7884 | nw64_mac(XMAC_CONFIG, val); | |
7885 | else | |
7886 | nw64_mac(BMAC_XIF_CONFIG, val); | |
7887 | } | |
7888 | ||
7889 | static void niu_force_led(struct niu *np, int on) | |
7890 | { | |
7891 | u64 val, reg, bit; | |
7892 | ||
7893 | if (np->flags & NIU_FLAGS_XMAC) { | |
7894 | reg = XMAC_CONFIG; | |
7895 | bit = XMAC_CONFIG_FORCE_LED_ON; | |
7896 | } else { | |
7897 | reg = BMAC_XIF_CONFIG; | |
7898 | bit = BMAC_XIF_CONFIG_LINK_LED; | |
7899 | } | |
7900 | ||
7901 | val = nr64_mac(reg); | |
7902 | if (on) | |
7903 | val |= bit; | |
7904 | else | |
7905 | val &= ~bit; | |
7906 | nw64_mac(reg, val); | |
7907 | } | |
7908 | ||
7909 | static int niu_phys_id(struct net_device *dev, u32 data) | |
7910 | { | |
7911 | struct niu *np = netdev_priv(dev); | |
7912 | u64 orig_led_state; | |
7913 | int i; | |
7914 | ||
7915 | if (!netif_running(dev)) | |
7916 | return -EAGAIN; | |
7917 | ||
7918 | if (data == 0) | |
7919 | data = 2; | |
7920 | ||
7921 | orig_led_state = niu_led_state_save(np); | |
7922 | for (i = 0; i < (data * 2); i++) { | |
7923 | int on = ((i % 2) == 0); | |
7924 | ||
7925 | niu_force_led(np, on); | |
7926 | ||
7927 | if (msleep_interruptible(500)) | |
7928 | break; | |
7929 | } | |
7930 | niu_led_state_restore(np, orig_led_state); | |
7931 | ||
7932 | return 0; | |
7933 | } | |
7934 | ||
7935 | static const struct ethtool_ops niu_ethtool_ops = { | |
7936 | .get_drvinfo = niu_get_drvinfo, | |
7937 | .get_link = ethtool_op_get_link, | |
7938 | .get_msglevel = niu_get_msglevel, | |
7939 | .set_msglevel = niu_set_msglevel, | |
38bb045d | 7940 | .nway_reset = niu_nway_reset, |
a3138df9 DM |
7941 | .get_eeprom_len = niu_get_eeprom_len, |
7942 | .get_eeprom = niu_get_eeprom, | |
7943 | .get_settings = niu_get_settings, | |
7944 | .set_settings = niu_set_settings, | |
7945 | .get_strings = niu_get_strings, | |
7946 | .get_stats_count = niu_get_stats_count, | |
7947 | .get_ethtool_stats = niu_get_ethtool_stats, | |
7948 | .phys_id = niu_phys_id, | |
2d96cf8c SB |
7949 | .get_rxnfc = niu_get_nfc, |
7950 | .set_rxnfc = niu_set_nfc, | |
a3138df9 DM |
7951 | }; |
7952 | ||
7953 | static int niu_ldg_assign_ldn(struct niu *np, struct niu_parent *parent, | |
7954 | int ldg, int ldn) | |
7955 | { | |
7956 | if (ldg < NIU_LDG_MIN || ldg > NIU_LDG_MAX) | |
7957 | return -EINVAL; | |
7958 | if (ldn < 0 || ldn > LDN_MAX) | |
7959 | return -EINVAL; | |
7960 | ||
7961 | parent->ldg_map[ldn] = ldg; | |
7962 | ||
7963 | if (np->parent->plat_type == PLAT_TYPE_NIU) { | |
7964 | /* On N2 NIU, the ldn-->ldg assignments are setup and fixed by | |
7965 | * the firmware, and we're not supposed to change them. | |
7966 | * Validate the mapping, because if it's wrong we probably | |
7967 | * won't get any interrupts and that's painful to debug. | |
7968 | */ | |
7969 | if (nr64(LDG_NUM(ldn)) != ldg) { | |
7970 | dev_err(np->device, PFX "Port %u, mis-matched " | |
7971 | "LDG assignment " | |
7972 | "for ldn %d, should be %d is %llu\n", | |
7973 | np->port, ldn, ldg, | |
7974 | (unsigned long long) nr64(LDG_NUM(ldn))); | |
7975 | return -EINVAL; | |
7976 | } | |
7977 | } else | |
7978 | nw64(LDG_NUM(ldn), ldg); | |
7979 | ||
7980 | return 0; | |
7981 | } | |
7982 | ||
7983 | static int niu_set_ldg_timer_res(struct niu *np, int res) | |
7984 | { | |
7985 | if (res < 0 || res > LDG_TIMER_RES_VAL) | |
7986 | return -EINVAL; | |
7987 | ||
7988 | ||
7989 | nw64(LDG_TIMER_RES, res); | |
7990 | ||
7991 | return 0; | |
7992 | } | |
7993 | ||
7994 | static int niu_set_ldg_sid(struct niu *np, int ldg, int func, int vector) | |
7995 | { | |
7996 | if ((ldg < NIU_LDG_MIN || ldg > NIU_LDG_MAX) || | |
7997 | (func < 0 || func > 3) || | |
7998 | (vector < 0 || vector > 0x1f)) | |
7999 | return -EINVAL; | |
8000 | ||
8001 | nw64(SID(ldg), (func << SID_FUNC_SHIFT) | vector); | |
8002 | ||
8003 | return 0; | |
8004 | } | |
8005 | ||
8006 | static int __devinit niu_pci_eeprom_read(struct niu *np, u32 addr) | |
8007 | { | |
8008 | u64 frame, frame_base = (ESPC_PIO_STAT_READ_START | | |
8009 | (addr << ESPC_PIO_STAT_ADDR_SHIFT)); | |
8010 | int limit; | |
8011 | ||
8012 | if (addr > (ESPC_PIO_STAT_ADDR >> ESPC_PIO_STAT_ADDR_SHIFT)) | |
8013 | return -EINVAL; | |
8014 | ||
8015 | frame = frame_base; | |
8016 | nw64(ESPC_PIO_STAT, frame); | |
8017 | limit = 64; | |
8018 | do { | |
8019 | udelay(5); | |
8020 | frame = nr64(ESPC_PIO_STAT); | |
8021 | if (frame & ESPC_PIO_STAT_READ_END) | |
8022 | break; | |
8023 | } while (limit--); | |
8024 | if (!(frame & ESPC_PIO_STAT_READ_END)) { | |
8025 | dev_err(np->device, PFX "EEPROM read timeout frame[%llx]\n", | |
8026 | (unsigned long long) frame); | |
8027 | return -ENODEV; | |
8028 | } | |
8029 | ||
8030 | frame = frame_base; | |
8031 | nw64(ESPC_PIO_STAT, frame); | |
8032 | limit = 64; | |
8033 | do { | |
8034 | udelay(5); | |
8035 | frame = nr64(ESPC_PIO_STAT); | |
8036 | if (frame & ESPC_PIO_STAT_READ_END) | |
8037 | break; | |
8038 | } while (limit--); | |
8039 | if (!(frame & ESPC_PIO_STAT_READ_END)) { | |
8040 | dev_err(np->device, PFX "EEPROM read timeout frame[%llx]\n", | |
8041 | (unsigned long long) frame); | |
8042 | return -ENODEV; | |
8043 | } | |
8044 | ||
8045 | frame = nr64(ESPC_PIO_STAT); | |
8046 | return (frame & ESPC_PIO_STAT_DATA) >> ESPC_PIO_STAT_DATA_SHIFT; | |
8047 | } | |
8048 | ||
8049 | static int __devinit niu_pci_eeprom_read16(struct niu *np, u32 off) | |
8050 | { | |
8051 | int err = niu_pci_eeprom_read(np, off); | |
8052 | u16 val; | |
8053 | ||
8054 | if (err < 0) | |
8055 | return err; | |
8056 | val = (err << 8); | |
8057 | err = niu_pci_eeprom_read(np, off + 1); | |
8058 | if (err < 0) | |
8059 | return err; | |
8060 | val |= (err & 0xff); | |
8061 | ||
8062 | return val; | |
8063 | } | |
8064 | ||
8065 | static int __devinit niu_pci_eeprom_read16_swp(struct niu *np, u32 off) | |
8066 | { | |
8067 | int err = niu_pci_eeprom_read(np, off); | |
8068 | u16 val; | |
8069 | ||
8070 | if (err < 0) | |
8071 | return err; | |
8072 | ||
8073 | val = (err & 0xff); | |
8074 | err = niu_pci_eeprom_read(np, off + 1); | |
8075 | if (err < 0) | |
8076 | return err; | |
8077 | ||
8078 | val |= (err & 0xff) << 8; | |
8079 | ||
8080 | return val; | |
8081 | } | |
8082 | ||
8083 | static int __devinit niu_pci_vpd_get_propname(struct niu *np, | |
8084 | u32 off, | |
8085 | char *namebuf, | |
8086 | int namebuf_len) | |
8087 | { | |
8088 | int i; | |
8089 | ||
8090 | for (i = 0; i < namebuf_len; i++) { | |
8091 | int err = niu_pci_eeprom_read(np, off + i); | |
8092 | if (err < 0) | |
8093 | return err; | |
8094 | *namebuf++ = err; | |
8095 | if (!err) | |
8096 | break; | |
8097 | } | |
8098 | if (i >= namebuf_len) | |
8099 | return -EINVAL; | |
8100 | ||
8101 | return i + 1; | |
8102 | } | |
8103 | ||
8104 | static void __devinit niu_vpd_parse_version(struct niu *np) | |
8105 | { | |
8106 | struct niu_vpd *vpd = &np->vpd; | |
8107 | int len = strlen(vpd->version) + 1; | |
8108 | const char *s = vpd->version; | |
8109 | int i; | |
8110 | ||
8111 | for (i = 0; i < len - 5; i++) { | |
8112 | if (!strncmp(s + i, "FCode ", 5)) | |
8113 | break; | |
8114 | } | |
8115 | if (i >= len - 5) | |
8116 | return; | |
8117 | ||
8118 | s += i + 5; | |
8119 | sscanf(s, "%d.%d", &vpd->fcode_major, &vpd->fcode_minor); | |
8120 | ||
8121 | niudbg(PROBE, "VPD_SCAN: FCODE major(%d) minor(%d)\n", | |
8122 | vpd->fcode_major, vpd->fcode_minor); | |
8123 | if (vpd->fcode_major > NIU_VPD_MIN_MAJOR || | |
8124 | (vpd->fcode_major == NIU_VPD_MIN_MAJOR && | |
8125 | vpd->fcode_minor >= NIU_VPD_MIN_MINOR)) | |
8126 | np->flags |= NIU_FLAGS_VPD_VALID; | |
8127 | } | |
8128 | ||
8129 | /* ESPC_PIO_EN_ENABLE must be set */ | |
8130 | static int __devinit niu_pci_vpd_scan_props(struct niu *np, | |
8131 | u32 start, u32 end) | |
8132 | { | |
8133 | unsigned int found_mask = 0; | |
8134 | #define FOUND_MASK_MODEL 0x00000001 | |
8135 | #define FOUND_MASK_BMODEL 0x00000002 | |
8136 | #define FOUND_MASK_VERS 0x00000004 | |
8137 | #define FOUND_MASK_MAC 0x00000008 | |
8138 | #define FOUND_MASK_NMAC 0x00000010 | |
8139 | #define FOUND_MASK_PHY 0x00000020 | |
8140 | #define FOUND_MASK_ALL 0x0000003f | |
8141 | ||
8142 | niudbg(PROBE, "VPD_SCAN: start[%x] end[%x]\n", | |
8143 | start, end); | |
8144 | while (start < end) { | |
8145 | int len, err, instance, type, prop_len; | |
8146 | char namebuf[64]; | |
8147 | u8 *prop_buf; | |
8148 | int max_len; | |
8149 | ||
8150 | if (found_mask == FOUND_MASK_ALL) { | |
8151 | niu_vpd_parse_version(np); | |
8152 | return 1; | |
8153 | } | |
8154 | ||
8155 | err = niu_pci_eeprom_read(np, start + 2); | |
8156 | if (err < 0) | |
8157 | return err; | |
8158 | len = err; | |
8159 | start += 3; | |
8160 | ||
8161 | instance = niu_pci_eeprom_read(np, start); | |
8162 | type = niu_pci_eeprom_read(np, start + 3); | |
8163 | prop_len = niu_pci_eeprom_read(np, start + 4); | |
8164 | err = niu_pci_vpd_get_propname(np, start + 5, namebuf, 64); | |
8165 | if (err < 0) | |
8166 | return err; | |
8167 | ||
8168 | prop_buf = NULL; | |
8169 | max_len = 0; | |
8170 | if (!strcmp(namebuf, "model")) { | |
8171 | prop_buf = np->vpd.model; | |
8172 | max_len = NIU_VPD_MODEL_MAX; | |
8173 | found_mask |= FOUND_MASK_MODEL; | |
8174 | } else if (!strcmp(namebuf, "board-model")) { | |
8175 | prop_buf = np->vpd.board_model; | |
8176 | max_len = NIU_VPD_BD_MODEL_MAX; | |
8177 | found_mask |= FOUND_MASK_BMODEL; | |
8178 | } else if (!strcmp(namebuf, "version")) { | |
8179 | prop_buf = np->vpd.version; | |
8180 | max_len = NIU_VPD_VERSION_MAX; | |
8181 | found_mask |= FOUND_MASK_VERS; | |
8182 | } else if (!strcmp(namebuf, "local-mac-address")) { | |
8183 | prop_buf = np->vpd.local_mac; | |
8184 | max_len = ETH_ALEN; | |
8185 | found_mask |= FOUND_MASK_MAC; | |
8186 | } else if (!strcmp(namebuf, "num-mac-addresses")) { | |
8187 | prop_buf = &np->vpd.mac_num; | |
8188 | max_len = 1; | |
8189 | found_mask |= FOUND_MASK_NMAC; | |
8190 | } else if (!strcmp(namebuf, "phy-type")) { | |
8191 | prop_buf = np->vpd.phy_type; | |
8192 | max_len = NIU_VPD_PHY_TYPE_MAX; | |
8193 | found_mask |= FOUND_MASK_PHY; | |
8194 | } | |
8195 | ||
8196 | if (max_len && prop_len > max_len) { | |
8197 | dev_err(np->device, PFX "Property '%s' length (%d) is " | |
8198 | "too long.\n", namebuf, prop_len); | |
8199 | return -EINVAL; | |
8200 | } | |
8201 | ||
8202 | if (prop_buf) { | |
8203 | u32 off = start + 5 + err; | |
8204 | int i; | |
8205 | ||
8206 | niudbg(PROBE, "VPD_SCAN: Reading in property [%s] " | |
8207 | "len[%d]\n", namebuf, prop_len); | |
8208 | for (i = 0; i < prop_len; i++) | |
8209 | *prop_buf++ = niu_pci_eeprom_read(np, off + i); | |
8210 | } | |
8211 | ||
8212 | start += len; | |
8213 | } | |
8214 | ||
8215 | return 0; | |
8216 | } | |
8217 | ||
8218 | /* ESPC_PIO_EN_ENABLE must be set */ | |
8219 | static void __devinit niu_pci_vpd_fetch(struct niu *np, u32 start) | |
8220 | { | |
8221 | u32 offset; | |
8222 | int err; | |
8223 | ||
8224 | err = niu_pci_eeprom_read16_swp(np, start + 1); | |
8225 | if (err < 0) | |
8226 | return; | |
8227 | ||
8228 | offset = err + 3; | |
8229 | ||
8230 | while (start + offset < ESPC_EEPROM_SIZE) { | |
8231 | u32 here = start + offset; | |
8232 | u32 end; | |
8233 | ||
8234 | err = niu_pci_eeprom_read(np, here); | |
8235 | if (err != 0x90) | |
8236 | return; | |
8237 | ||
8238 | err = niu_pci_eeprom_read16_swp(np, here + 1); | |
8239 | if (err < 0) | |
8240 | return; | |
8241 | ||
8242 | here = start + offset + 3; | |
8243 | end = start + offset + err; | |
8244 | ||
8245 | offset += err; | |
8246 | ||
8247 | err = niu_pci_vpd_scan_props(np, here, end); | |
8248 | if (err < 0 || err == 1) | |
8249 | return; | |
8250 | } | |
8251 | } | |
8252 | ||
8253 | /* ESPC_PIO_EN_ENABLE must be set */ | |
8254 | static u32 __devinit niu_pci_vpd_offset(struct niu *np) | |
8255 | { | |
8256 | u32 start = 0, end = ESPC_EEPROM_SIZE, ret; | |
8257 | int err; | |
8258 | ||
8259 | while (start < end) { | |
8260 | ret = start; | |
8261 | ||
8262 | /* ROM header signature? */ | |
8263 | err = niu_pci_eeprom_read16(np, start + 0); | |
8264 | if (err != 0x55aa) | |
8265 | return 0; | |
8266 | ||
8267 | /* Apply offset to PCI data structure. */ | |
8268 | err = niu_pci_eeprom_read16(np, start + 23); | |
8269 | if (err < 0) | |
8270 | return 0; | |
8271 | start += err; | |
8272 | ||
8273 | /* Check for "PCIR" signature. */ | |
8274 | err = niu_pci_eeprom_read16(np, start + 0); | |
8275 | if (err != 0x5043) | |
8276 | return 0; | |
8277 | err = niu_pci_eeprom_read16(np, start + 2); | |
8278 | if (err != 0x4952) | |
8279 | return 0; | |
8280 | ||
8281 | /* Check for OBP image type. */ | |
8282 | err = niu_pci_eeprom_read(np, start + 20); | |
8283 | if (err < 0) | |
8284 | return 0; | |
8285 | if (err != 0x01) { | |
8286 | err = niu_pci_eeprom_read(np, ret + 2); | |
8287 | if (err < 0) | |
8288 | return 0; | |
8289 | ||
8290 | start = ret + (err * 512); | |
8291 | continue; | |
8292 | } | |
8293 | ||
8294 | err = niu_pci_eeprom_read16_swp(np, start + 8); | |
8295 | if (err < 0) | |
8296 | return err; | |
8297 | ret += err; | |
8298 | ||
8299 | err = niu_pci_eeprom_read(np, ret + 0); | |
8300 | if (err != 0x82) | |
8301 | return 0; | |
8302 | ||
8303 | return ret; | |
8304 | } | |
8305 | ||
8306 | return 0; | |
8307 | } | |
8308 | ||
8309 | static int __devinit niu_phy_type_prop_decode(struct niu *np, | |
8310 | const char *phy_prop) | |
8311 | { | |
8312 | if (!strcmp(phy_prop, "mif")) { | |
8313 | /* 1G copper, MII */ | |
8314 | np->flags &= ~(NIU_FLAGS_FIBER | | |
8315 | NIU_FLAGS_10G); | |
8316 | np->mac_xcvr = MAC_XCVR_MII; | |
8317 | } else if (!strcmp(phy_prop, "xgf")) { | |
8318 | /* 10G fiber, XPCS */ | |
8319 | np->flags |= (NIU_FLAGS_10G | | |
8320 | NIU_FLAGS_FIBER); | |
8321 | np->mac_xcvr = MAC_XCVR_XPCS; | |
8322 | } else if (!strcmp(phy_prop, "pcs")) { | |
8323 | /* 1G fiber, PCS */ | |
8324 | np->flags &= ~NIU_FLAGS_10G; | |
8325 | np->flags |= NIU_FLAGS_FIBER; | |
8326 | np->mac_xcvr = MAC_XCVR_PCS; | |
8327 | } else if (!strcmp(phy_prop, "xgc")) { | |
8328 | /* 10G copper, XPCS */ | |
8329 | np->flags |= NIU_FLAGS_10G; | |
8330 | np->flags &= ~NIU_FLAGS_FIBER; | |
8331 | np->mac_xcvr = MAC_XCVR_XPCS; | |
e3e081e1 SB |
8332 | } else if (!strcmp(phy_prop, "xgsd") || !strcmp(phy_prop, "gsd")) { |
8333 | /* 10G Serdes or 1G Serdes, default to 10G */ | |
8334 | np->flags |= NIU_FLAGS_10G; | |
8335 | np->flags &= ~NIU_FLAGS_FIBER; | |
8336 | np->flags |= NIU_FLAGS_XCVR_SERDES; | |
8337 | np->mac_xcvr = MAC_XCVR_XPCS; | |
a3138df9 DM |
8338 | } else { |
8339 | return -EINVAL; | |
8340 | } | |
8341 | return 0; | |
8342 | } | |
8343 | ||
7f7c4072 MW |
8344 | static int niu_pci_vpd_get_nports(struct niu *np) |
8345 | { | |
8346 | int ports = 0; | |
8347 | ||
f9af8574 MW |
8348 | if ((!strcmp(np->vpd.model, NIU_QGC_LP_MDL_STR)) || |
8349 | (!strcmp(np->vpd.model, NIU_QGC_PEM_MDL_STR)) || | |
8350 | (!strcmp(np->vpd.model, NIU_MARAMBA_MDL_STR)) || | |
8351 | (!strcmp(np->vpd.model, NIU_KIMI_MDL_STR)) || | |
8352 | (!strcmp(np->vpd.model, NIU_ALONSO_MDL_STR))) { | |
7f7c4072 | 8353 | ports = 4; |
f9af8574 MW |
8354 | } else if ((!strcmp(np->vpd.model, NIU_2XGF_LP_MDL_STR)) || |
8355 | (!strcmp(np->vpd.model, NIU_2XGF_PEM_MDL_STR)) || | |
8356 | (!strcmp(np->vpd.model, NIU_FOXXY_MDL_STR)) || | |
8357 | (!strcmp(np->vpd.model, NIU_2XGF_MRVL_MDL_STR))) { | |
7f7c4072 MW |
8358 | ports = 2; |
8359 | } | |
8360 | ||
8361 | return ports; | |
8362 | } | |
8363 | ||
a3138df9 DM |
8364 | static void __devinit niu_pci_vpd_validate(struct niu *np) |
8365 | { | |
8366 | struct net_device *dev = np->dev; | |
8367 | struct niu_vpd *vpd = &np->vpd; | |
8368 | u8 val8; | |
8369 | ||
8370 | if (!is_valid_ether_addr(&vpd->local_mac[0])) { | |
8371 | dev_err(np->device, PFX "VPD MAC invalid, " | |
8372 | "falling back to SPROM.\n"); | |
8373 | ||
8374 | np->flags &= ~NIU_FLAGS_VPD_VALID; | |
8375 | return; | |
8376 | } | |
8377 | ||
f9af8574 MW |
8378 | if (!strcmp(np->vpd.model, NIU_ALONSO_MDL_STR) || |
8379 | !strcmp(np->vpd.model, NIU_KIMI_MDL_STR)) { | |
5fbd7e24 MW |
8380 | np->flags |= NIU_FLAGS_10G; |
8381 | np->flags &= ~NIU_FLAGS_FIBER; | |
8382 | np->flags |= NIU_FLAGS_XCVR_SERDES; | |
8383 | np->mac_xcvr = MAC_XCVR_PCS; | |
8384 | if (np->port > 1) { | |
8385 | np->flags |= NIU_FLAGS_FIBER; | |
8386 | np->flags &= ~NIU_FLAGS_10G; | |
8387 | } | |
8388 | if (np->flags & NIU_FLAGS_10G) | |
8389 | np->mac_xcvr = MAC_XCVR_XPCS; | |
f9af8574 | 8390 | } else if (!strcmp(np->vpd.model, NIU_FOXXY_MDL_STR)) { |
a5d6ab56 MW |
8391 | np->flags |= (NIU_FLAGS_10G | NIU_FLAGS_FIBER | |
8392 | NIU_FLAGS_HOTPLUG_PHY); | |
5fbd7e24 | 8393 | } else if (niu_phy_type_prop_decode(np, np->vpd.phy_type)) { |
a3138df9 DM |
8394 | dev_err(np->device, PFX "Illegal phy string [%s].\n", |
8395 | np->vpd.phy_type); | |
8396 | dev_err(np->device, PFX "Falling back to SPROM.\n"); | |
8397 | np->flags &= ~NIU_FLAGS_VPD_VALID; | |
8398 | return; | |
8399 | } | |
8400 | ||
8401 | memcpy(dev->perm_addr, vpd->local_mac, ETH_ALEN); | |
8402 | ||
8403 | val8 = dev->perm_addr[5]; | |
8404 | dev->perm_addr[5] += np->port; | |
8405 | if (dev->perm_addr[5] < val8) | |
8406 | dev->perm_addr[4]++; | |
8407 | ||
8408 | memcpy(dev->dev_addr, dev->perm_addr, dev->addr_len); | |
8409 | } | |
8410 | ||
8411 | static int __devinit niu_pci_probe_sprom(struct niu *np) | |
8412 | { | |
8413 | struct net_device *dev = np->dev; | |
8414 | int len, i; | |
8415 | u64 val, sum; | |
8416 | u8 val8; | |
8417 | ||
8418 | val = (nr64(ESPC_VER_IMGSZ) & ESPC_VER_IMGSZ_IMGSZ); | |
8419 | val >>= ESPC_VER_IMGSZ_IMGSZ_SHIFT; | |
8420 | len = val / 4; | |
8421 | ||
8422 | np->eeprom_len = len; | |
8423 | ||
8424 | niudbg(PROBE, "SPROM: Image size %llu\n", (unsigned long long) val); | |
8425 | ||
8426 | sum = 0; | |
8427 | for (i = 0; i < len; i++) { | |
8428 | val = nr64(ESPC_NCR(i)); | |
8429 | sum += (val >> 0) & 0xff; | |
8430 | sum += (val >> 8) & 0xff; | |
8431 | sum += (val >> 16) & 0xff; | |
8432 | sum += (val >> 24) & 0xff; | |
8433 | } | |
8434 | niudbg(PROBE, "SPROM: Checksum %x\n", (int)(sum & 0xff)); | |
8435 | if ((sum & 0xff) != 0xab) { | |
8436 | dev_err(np->device, PFX "Bad SPROM checksum " | |
8437 | "(%x, should be 0xab)\n", (int) (sum & 0xff)); | |
8438 | return -EINVAL; | |
8439 | } | |
8440 | ||
8441 | val = nr64(ESPC_PHY_TYPE); | |
8442 | switch (np->port) { | |
8443 | case 0: | |
a9d41192 | 8444 | val8 = (val & ESPC_PHY_TYPE_PORT0) >> |
a3138df9 DM |
8445 | ESPC_PHY_TYPE_PORT0_SHIFT; |
8446 | break; | |
8447 | case 1: | |
a9d41192 | 8448 | val8 = (val & ESPC_PHY_TYPE_PORT1) >> |
a3138df9 DM |
8449 | ESPC_PHY_TYPE_PORT1_SHIFT; |
8450 | break; | |
8451 | case 2: | |
a9d41192 | 8452 | val8 = (val & ESPC_PHY_TYPE_PORT2) >> |
a3138df9 DM |
8453 | ESPC_PHY_TYPE_PORT2_SHIFT; |
8454 | break; | |
8455 | case 3: | |
a9d41192 | 8456 | val8 = (val & ESPC_PHY_TYPE_PORT3) >> |
a3138df9 DM |
8457 | ESPC_PHY_TYPE_PORT3_SHIFT; |
8458 | break; | |
8459 | default: | |
8460 | dev_err(np->device, PFX "Bogus port number %u\n", | |
8461 | np->port); | |
8462 | return -EINVAL; | |
8463 | } | |
a9d41192 | 8464 | niudbg(PROBE, "SPROM: PHY type %x\n", val8); |
a3138df9 | 8465 | |
a9d41192 | 8466 | switch (val8) { |
a3138df9 DM |
8467 | case ESPC_PHY_TYPE_1G_COPPER: |
8468 | /* 1G copper, MII */ | |
8469 | np->flags &= ~(NIU_FLAGS_FIBER | | |
8470 | NIU_FLAGS_10G); | |
8471 | np->mac_xcvr = MAC_XCVR_MII; | |
8472 | break; | |
8473 | ||
8474 | case ESPC_PHY_TYPE_1G_FIBER: | |
8475 | /* 1G fiber, PCS */ | |
8476 | np->flags &= ~NIU_FLAGS_10G; | |
8477 | np->flags |= NIU_FLAGS_FIBER; | |
8478 | np->mac_xcvr = MAC_XCVR_PCS; | |
8479 | break; | |
8480 | ||
8481 | case ESPC_PHY_TYPE_10G_COPPER: | |
8482 | /* 10G copper, XPCS */ | |
8483 | np->flags |= NIU_FLAGS_10G; | |
8484 | np->flags &= ~NIU_FLAGS_FIBER; | |
8485 | np->mac_xcvr = MAC_XCVR_XPCS; | |
8486 | break; | |
8487 | ||
8488 | case ESPC_PHY_TYPE_10G_FIBER: | |
8489 | /* 10G fiber, XPCS */ | |
8490 | np->flags |= (NIU_FLAGS_10G | | |
8491 | NIU_FLAGS_FIBER); | |
8492 | np->mac_xcvr = MAC_XCVR_XPCS; | |
8493 | break; | |
8494 | ||
8495 | default: | |
a9d41192 | 8496 | dev_err(np->device, PFX "Bogus SPROM phy type %u\n", val8); |
a3138df9 DM |
8497 | return -EINVAL; |
8498 | } | |
8499 | ||
8500 | val = nr64(ESPC_MAC_ADDR0); | |
8501 | niudbg(PROBE, "SPROM: MAC_ADDR0[%08llx]\n", | |
8502 | (unsigned long long) val); | |
8503 | dev->perm_addr[0] = (val >> 0) & 0xff; | |
8504 | dev->perm_addr[1] = (val >> 8) & 0xff; | |
8505 | dev->perm_addr[2] = (val >> 16) & 0xff; | |
8506 | dev->perm_addr[3] = (val >> 24) & 0xff; | |
8507 | ||
8508 | val = nr64(ESPC_MAC_ADDR1); | |
8509 | niudbg(PROBE, "SPROM: MAC_ADDR1[%08llx]\n", | |
8510 | (unsigned long long) val); | |
8511 | dev->perm_addr[4] = (val >> 0) & 0xff; | |
8512 | dev->perm_addr[5] = (val >> 8) & 0xff; | |
8513 | ||
8514 | if (!is_valid_ether_addr(&dev->perm_addr[0])) { | |
8515 | dev_err(np->device, PFX "SPROM MAC address invalid\n"); | |
8516 | dev_err(np->device, PFX "[ \n"); | |
8517 | for (i = 0; i < 6; i++) | |
8518 | printk("%02x ", dev->perm_addr[i]); | |
8519 | printk("]\n"); | |
8520 | return -EINVAL; | |
8521 | } | |
8522 | ||
8523 | val8 = dev->perm_addr[5]; | |
8524 | dev->perm_addr[5] += np->port; | |
8525 | if (dev->perm_addr[5] < val8) | |
8526 | dev->perm_addr[4]++; | |
8527 | ||
8528 | memcpy(dev->dev_addr, dev->perm_addr, dev->addr_len); | |
8529 | ||
8530 | val = nr64(ESPC_MOD_STR_LEN); | |
8531 | niudbg(PROBE, "SPROM: MOD_STR_LEN[%llu]\n", | |
8532 | (unsigned long long) val); | |
e6a5fdf5 | 8533 | if (val >= 8 * 4) |
a3138df9 DM |
8534 | return -EINVAL; |
8535 | ||
8536 | for (i = 0; i < val; i += 4) { | |
8537 | u64 tmp = nr64(ESPC_NCR(5 + (i / 4))); | |
8538 | ||
8539 | np->vpd.model[i + 3] = (tmp >> 0) & 0xff; | |
8540 | np->vpd.model[i + 2] = (tmp >> 8) & 0xff; | |
8541 | np->vpd.model[i + 1] = (tmp >> 16) & 0xff; | |
8542 | np->vpd.model[i + 0] = (tmp >> 24) & 0xff; | |
8543 | } | |
8544 | np->vpd.model[val] = '\0'; | |
8545 | ||
8546 | val = nr64(ESPC_BD_MOD_STR_LEN); | |
8547 | niudbg(PROBE, "SPROM: BD_MOD_STR_LEN[%llu]\n", | |
8548 | (unsigned long long) val); | |
e6a5fdf5 | 8549 | if (val >= 4 * 4) |
a3138df9 DM |
8550 | return -EINVAL; |
8551 | ||
8552 | for (i = 0; i < val; i += 4) { | |
8553 | u64 tmp = nr64(ESPC_NCR(14 + (i / 4))); | |
8554 | ||
8555 | np->vpd.board_model[i + 3] = (tmp >> 0) & 0xff; | |
8556 | np->vpd.board_model[i + 2] = (tmp >> 8) & 0xff; | |
8557 | np->vpd.board_model[i + 1] = (tmp >> 16) & 0xff; | |
8558 | np->vpd.board_model[i + 0] = (tmp >> 24) & 0xff; | |
8559 | } | |
8560 | np->vpd.board_model[val] = '\0'; | |
8561 | ||
8562 | np->vpd.mac_num = | |
8563 | nr64(ESPC_NUM_PORTS_MACS) & ESPC_NUM_PORTS_MACS_VAL; | |
8564 | niudbg(PROBE, "SPROM: NUM_PORTS_MACS[%d]\n", | |
8565 | np->vpd.mac_num); | |
8566 | ||
8567 | return 0; | |
8568 | } | |
8569 | ||
8570 | static int __devinit niu_get_and_validate_port(struct niu *np) | |
8571 | { | |
8572 | struct niu_parent *parent = np->parent; | |
8573 | ||
8574 | if (np->port <= 1) | |
8575 | np->flags |= NIU_FLAGS_XMAC; | |
8576 | ||
8577 | if (!parent->num_ports) { | |
8578 | if (parent->plat_type == PLAT_TYPE_NIU) { | |
8579 | parent->num_ports = 2; | |
8580 | } else { | |
7f7c4072 MW |
8581 | parent->num_ports = niu_pci_vpd_get_nports(np); |
8582 | if (!parent->num_ports) { | |
8583 | /* Fall back to SPROM as last resort. | |
8584 | * This will fail on most cards. | |
8585 | */ | |
8586 | parent->num_ports = nr64(ESPC_NUM_PORTS_MACS) & | |
8587 | ESPC_NUM_PORTS_MACS_VAL; | |
8588 | ||
be0c007a DM |
8589 | /* All of the current probing methods fail on |
8590 | * Maramba on-board parts. | |
8591 | */ | |
7f7c4072 | 8592 | if (!parent->num_ports) |
be0c007a | 8593 | parent->num_ports = 4; |
7f7c4072 | 8594 | } |
a3138df9 DM |
8595 | } |
8596 | } | |
8597 | ||
8598 | niudbg(PROBE, "niu_get_and_validate_port: port[%d] num_ports[%d]\n", | |
8599 | np->port, parent->num_ports); | |
8600 | if (np->port >= parent->num_ports) | |
8601 | return -ENODEV; | |
8602 | ||
8603 | return 0; | |
8604 | } | |
8605 | ||
8606 | static int __devinit phy_record(struct niu_parent *parent, | |
8607 | struct phy_probe_info *p, | |
8608 | int dev_id_1, int dev_id_2, u8 phy_port, | |
8609 | int type) | |
8610 | { | |
8611 | u32 id = (dev_id_1 << 16) | dev_id_2; | |
8612 | u8 idx; | |
8613 | ||
8614 | if (dev_id_1 < 0 || dev_id_2 < 0) | |
8615 | return 0; | |
8616 | if (type == PHY_TYPE_PMA_PMD || type == PHY_TYPE_PCS) { | |
b0de8e40 | 8617 | if (((id & NIU_PHY_ID_MASK) != NIU_PHY_ID_BCM8704) && |
a5d6ab56 MW |
8618 | ((id & NIU_PHY_ID_MASK) != NIU_PHY_ID_MRVL88X2011) && |
8619 | ((id & NIU_PHY_ID_MASK) != NIU_PHY_ID_BCM8706)) | |
a3138df9 DM |
8620 | return 0; |
8621 | } else { | |
8622 | if ((id & NIU_PHY_ID_MASK) != NIU_PHY_ID_BCM5464R) | |
8623 | return 0; | |
8624 | } | |
8625 | ||
8626 | pr_info("niu%d: Found PHY %08x type %s at phy_port %u\n", | |
8627 | parent->index, id, | |
8628 | (type == PHY_TYPE_PMA_PMD ? | |
8629 | "PMA/PMD" : | |
8630 | (type == PHY_TYPE_PCS ? | |
8631 | "PCS" : "MII")), | |
8632 | phy_port); | |
8633 | ||
8634 | if (p->cur[type] >= NIU_MAX_PORTS) { | |
8635 | printk(KERN_ERR PFX "Too many PHY ports.\n"); | |
8636 | return -EINVAL; | |
8637 | } | |
8638 | idx = p->cur[type]; | |
8639 | p->phy_id[type][idx] = id; | |
8640 | p->phy_port[type][idx] = phy_port; | |
8641 | p->cur[type] = idx + 1; | |
8642 | return 0; | |
8643 | } | |
8644 | ||
8645 | static int __devinit port_has_10g(struct phy_probe_info *p, int port) | |
8646 | { | |
8647 | int i; | |
8648 | ||
8649 | for (i = 0; i < p->cur[PHY_TYPE_PMA_PMD]; i++) { | |
8650 | if (p->phy_port[PHY_TYPE_PMA_PMD][i] == port) | |
8651 | return 1; | |
8652 | } | |
8653 | for (i = 0; i < p->cur[PHY_TYPE_PCS]; i++) { | |
8654 | if (p->phy_port[PHY_TYPE_PCS][i] == port) | |
8655 | return 1; | |
8656 | } | |
8657 | ||
8658 | return 0; | |
8659 | } | |
8660 | ||
8661 | static int __devinit count_10g_ports(struct phy_probe_info *p, int *lowest) | |
8662 | { | |
8663 | int port, cnt; | |
8664 | ||
8665 | cnt = 0; | |
8666 | *lowest = 32; | |
8667 | for (port = 8; port < 32; port++) { | |
8668 | if (port_has_10g(p, port)) { | |
8669 | if (!cnt) | |
8670 | *lowest = port; | |
8671 | cnt++; | |
8672 | } | |
8673 | } | |
8674 | ||
8675 | return cnt; | |
8676 | } | |
8677 | ||
8678 | static int __devinit count_1g_ports(struct phy_probe_info *p, int *lowest) | |
8679 | { | |
8680 | *lowest = 32; | |
8681 | if (p->cur[PHY_TYPE_MII]) | |
8682 | *lowest = p->phy_port[PHY_TYPE_MII][0]; | |
8683 | ||
8684 | return p->cur[PHY_TYPE_MII]; | |
8685 | } | |
8686 | ||
8687 | static void __devinit niu_n2_divide_channels(struct niu_parent *parent) | |
8688 | { | |
8689 | int num_ports = parent->num_ports; | |
8690 | int i; | |
8691 | ||
8692 | for (i = 0; i < num_ports; i++) { | |
8693 | parent->rxchan_per_port[i] = (16 / num_ports); | |
8694 | parent->txchan_per_port[i] = (16 / num_ports); | |
8695 | ||
8696 | pr_info(PFX "niu%d: Port %u [%u RX chans] " | |
8697 | "[%u TX chans]\n", | |
8698 | parent->index, i, | |
8699 | parent->rxchan_per_port[i], | |
8700 | parent->txchan_per_port[i]); | |
8701 | } | |
8702 | } | |
8703 | ||
8704 | static void __devinit niu_divide_channels(struct niu_parent *parent, | |
8705 | int num_10g, int num_1g) | |
8706 | { | |
8707 | int num_ports = parent->num_ports; | |
8708 | int rx_chans_per_10g, rx_chans_per_1g; | |
8709 | int tx_chans_per_10g, tx_chans_per_1g; | |
8710 | int i, tot_rx, tot_tx; | |
8711 | ||
8712 | if (!num_10g || !num_1g) { | |
8713 | rx_chans_per_10g = rx_chans_per_1g = | |
8714 | (NIU_NUM_RXCHAN / num_ports); | |
8715 | tx_chans_per_10g = tx_chans_per_1g = | |
8716 | (NIU_NUM_TXCHAN / num_ports); | |
8717 | } else { | |
8718 | rx_chans_per_1g = NIU_NUM_RXCHAN / 8; | |
8719 | rx_chans_per_10g = (NIU_NUM_RXCHAN - | |
8720 | (rx_chans_per_1g * num_1g)) / | |
8721 | num_10g; | |
8722 | ||
8723 | tx_chans_per_1g = NIU_NUM_TXCHAN / 6; | |
8724 | tx_chans_per_10g = (NIU_NUM_TXCHAN - | |
8725 | (tx_chans_per_1g * num_1g)) / | |
8726 | num_10g; | |
8727 | } | |
8728 | ||
8729 | tot_rx = tot_tx = 0; | |
8730 | for (i = 0; i < num_ports; i++) { | |
8731 | int type = phy_decode(parent->port_phy, i); | |
8732 | ||
8733 | if (type == PORT_TYPE_10G) { | |
8734 | parent->rxchan_per_port[i] = rx_chans_per_10g; | |
8735 | parent->txchan_per_port[i] = tx_chans_per_10g; | |
8736 | } else { | |
8737 | parent->rxchan_per_port[i] = rx_chans_per_1g; | |
8738 | parent->txchan_per_port[i] = tx_chans_per_1g; | |
8739 | } | |
8740 | pr_info(PFX "niu%d: Port %u [%u RX chans] " | |
8741 | "[%u TX chans]\n", | |
8742 | parent->index, i, | |
8743 | parent->rxchan_per_port[i], | |
8744 | parent->txchan_per_port[i]); | |
8745 | tot_rx += parent->rxchan_per_port[i]; | |
8746 | tot_tx += parent->txchan_per_port[i]; | |
8747 | } | |
8748 | ||
8749 | if (tot_rx > NIU_NUM_RXCHAN) { | |
8750 | printk(KERN_ERR PFX "niu%d: Too many RX channels (%d), " | |
8751 | "resetting to one per port.\n", | |
8752 | parent->index, tot_rx); | |
8753 | for (i = 0; i < num_ports; i++) | |
8754 | parent->rxchan_per_port[i] = 1; | |
8755 | } | |
8756 | if (tot_tx > NIU_NUM_TXCHAN) { | |
8757 | printk(KERN_ERR PFX "niu%d: Too many TX channels (%d), " | |
8758 | "resetting to one per port.\n", | |
8759 | parent->index, tot_tx); | |
8760 | for (i = 0; i < num_ports; i++) | |
8761 | parent->txchan_per_port[i] = 1; | |
8762 | } | |
8763 | if (tot_rx < NIU_NUM_RXCHAN || tot_tx < NIU_NUM_TXCHAN) { | |
8764 | printk(KERN_WARNING PFX "niu%d: Driver bug, wasted channels, " | |
8765 | "RX[%d] TX[%d]\n", | |
8766 | parent->index, tot_rx, tot_tx); | |
8767 | } | |
8768 | } | |
8769 | ||
8770 | static void __devinit niu_divide_rdc_groups(struct niu_parent *parent, | |
8771 | int num_10g, int num_1g) | |
8772 | { | |
8773 | int i, num_ports = parent->num_ports; | |
8774 | int rdc_group, rdc_groups_per_port; | |
8775 | int rdc_channel_base; | |
8776 | ||
8777 | rdc_group = 0; | |
8778 | rdc_groups_per_port = NIU_NUM_RDC_TABLES / num_ports; | |
8779 | ||
8780 | rdc_channel_base = 0; | |
8781 | ||
8782 | for (i = 0; i < num_ports; i++) { | |
8783 | struct niu_rdc_tables *tp = &parent->rdc_group_cfg[i]; | |
8784 | int grp, num_channels = parent->rxchan_per_port[i]; | |
8785 | int this_channel_offset; | |
8786 | ||
8787 | tp->first_table_num = rdc_group; | |
8788 | tp->num_tables = rdc_groups_per_port; | |
8789 | this_channel_offset = 0; | |
8790 | for (grp = 0; grp < tp->num_tables; grp++) { | |
8791 | struct rdc_table *rt = &tp->tables[grp]; | |
8792 | int slot; | |
8793 | ||
8794 | pr_info(PFX "niu%d: Port %d RDC tbl(%d) [ ", | |
8795 | parent->index, i, tp->first_table_num + grp); | |
8796 | for (slot = 0; slot < NIU_RDC_TABLE_SLOTS; slot++) { | |
8797 | rt->rxdma_channel[slot] = | |
8798 | rdc_channel_base + this_channel_offset; | |
8799 | ||
8800 | printk("%d ", rt->rxdma_channel[slot]); | |
8801 | ||
8802 | if (++this_channel_offset == num_channels) | |
8803 | this_channel_offset = 0; | |
8804 | } | |
8805 | printk("]\n"); | |
8806 | } | |
8807 | ||
8808 | parent->rdc_default[i] = rdc_channel_base; | |
8809 | ||
8810 | rdc_channel_base += num_channels; | |
8811 | rdc_group += rdc_groups_per_port; | |
8812 | } | |
8813 | } | |
8814 | ||
8815 | static int __devinit fill_phy_probe_info(struct niu *np, | |
8816 | struct niu_parent *parent, | |
8817 | struct phy_probe_info *info) | |
8818 | { | |
8819 | unsigned long flags; | |
8820 | int port, err; | |
8821 | ||
8822 | memset(info, 0, sizeof(*info)); | |
8823 | ||
8824 | /* Port 0 to 7 are reserved for onboard Serdes, probe the rest. */ | |
8825 | niu_lock_parent(np, flags); | |
8826 | err = 0; | |
8827 | for (port = 8; port < 32; port++) { | |
8828 | int dev_id_1, dev_id_2; | |
8829 | ||
8830 | dev_id_1 = mdio_read(np, port, | |
8831 | NIU_PMA_PMD_DEV_ADDR, MII_PHYSID1); | |
8832 | dev_id_2 = mdio_read(np, port, | |
8833 | NIU_PMA_PMD_DEV_ADDR, MII_PHYSID2); | |
8834 | err = phy_record(parent, info, dev_id_1, dev_id_2, port, | |
8835 | PHY_TYPE_PMA_PMD); | |
8836 | if (err) | |
8837 | break; | |
8838 | dev_id_1 = mdio_read(np, port, | |
8839 | NIU_PCS_DEV_ADDR, MII_PHYSID1); | |
8840 | dev_id_2 = mdio_read(np, port, | |
8841 | NIU_PCS_DEV_ADDR, MII_PHYSID2); | |
8842 | err = phy_record(parent, info, dev_id_1, dev_id_2, port, | |
8843 | PHY_TYPE_PCS); | |
8844 | if (err) | |
8845 | break; | |
8846 | dev_id_1 = mii_read(np, port, MII_PHYSID1); | |
8847 | dev_id_2 = mii_read(np, port, MII_PHYSID2); | |
8848 | err = phy_record(parent, info, dev_id_1, dev_id_2, port, | |
8849 | PHY_TYPE_MII); | |
8850 | if (err) | |
8851 | break; | |
8852 | } | |
8853 | niu_unlock_parent(np, flags); | |
8854 | ||
8855 | return err; | |
8856 | } | |
8857 | ||
8858 | static int __devinit walk_phys(struct niu *np, struct niu_parent *parent) | |
8859 | { | |
8860 | struct phy_probe_info *info = &parent->phy_probe_info; | |
8861 | int lowest_10g, lowest_1g; | |
8862 | int num_10g, num_1g; | |
8863 | u32 val; | |
8864 | int err; | |
8865 | ||
e3e081e1 SB |
8866 | num_10g = num_1g = 0; |
8867 | ||
f9af8574 MW |
8868 | if (!strcmp(np->vpd.model, NIU_ALONSO_MDL_STR) || |
8869 | !strcmp(np->vpd.model, NIU_KIMI_MDL_STR)) { | |
5fbd7e24 MW |
8870 | num_10g = 0; |
8871 | num_1g = 2; | |
8872 | parent->plat_type = PLAT_TYPE_ATCA_CP3220; | |
8873 | parent->num_ports = 4; | |
8874 | val = (phy_encode(PORT_TYPE_1G, 0) | | |
8875 | phy_encode(PORT_TYPE_1G, 1) | | |
a3138df9 DM |
8876 | phy_encode(PORT_TYPE_1G, 2) | |
8877 | phy_encode(PORT_TYPE_1G, 3)); | |
f9af8574 | 8878 | } else if (!strcmp(np->vpd.model, NIU_FOXXY_MDL_STR)) { |
a5d6ab56 MW |
8879 | num_10g = 2; |
8880 | num_1g = 0; | |
8881 | parent->num_ports = 2; | |
8882 | val = (phy_encode(PORT_TYPE_10G, 0) | | |
8883 | phy_encode(PORT_TYPE_10G, 1)); | |
e3e081e1 SB |
8884 | } else if ((np->flags & NIU_FLAGS_XCVR_SERDES) && |
8885 | (parent->plat_type == PLAT_TYPE_NIU)) { | |
8886 | /* this is the Monza case */ | |
8887 | if (np->flags & NIU_FLAGS_10G) { | |
8888 | val = (phy_encode(PORT_TYPE_10G, 0) | | |
8889 | phy_encode(PORT_TYPE_10G, 1)); | |
8890 | } else { | |
8891 | val = (phy_encode(PORT_TYPE_1G, 0) | | |
8892 | phy_encode(PORT_TYPE_1G, 1)); | |
8893 | } | |
5fbd7e24 MW |
8894 | } else { |
8895 | err = fill_phy_probe_info(np, parent, info); | |
8896 | if (err) | |
8897 | return err; | |
a3138df9 | 8898 | |
5fbd7e24 MW |
8899 | num_10g = count_10g_ports(info, &lowest_10g); |
8900 | num_1g = count_1g_ports(info, &lowest_1g); | |
a3138df9 | 8901 | |
5fbd7e24 MW |
8902 | switch ((num_10g << 4) | num_1g) { |
8903 | case 0x24: | |
8904 | if (lowest_1g == 10) | |
8905 | parent->plat_type = PLAT_TYPE_VF_P0; | |
8906 | else if (lowest_1g == 26) | |
8907 | parent->plat_type = PLAT_TYPE_VF_P1; | |
8908 | else | |
8909 | goto unknown_vg_1g_port; | |
a3138df9 | 8910 | |
5fbd7e24 MW |
8911 | /* fallthru */ |
8912 | case 0x22: | |
a3138df9 | 8913 | val = (phy_encode(PORT_TYPE_10G, 0) | |
a3138df9 DM |
8914 | phy_encode(PORT_TYPE_10G, 1) | |
8915 | phy_encode(PORT_TYPE_1G, 2) | | |
8916 | phy_encode(PORT_TYPE_1G, 3)); | |
5fbd7e24 | 8917 | break; |
a3138df9 | 8918 | |
5fbd7e24 MW |
8919 | case 0x20: |
8920 | val = (phy_encode(PORT_TYPE_10G, 0) | | |
8921 | phy_encode(PORT_TYPE_10G, 1)); | |
8922 | break; | |
a3138df9 | 8923 | |
5fbd7e24 MW |
8924 | case 0x10: |
8925 | val = phy_encode(PORT_TYPE_10G, np->port); | |
8926 | break; | |
a3138df9 | 8927 | |
5fbd7e24 MW |
8928 | case 0x14: |
8929 | if (lowest_1g == 10) | |
8930 | parent->plat_type = PLAT_TYPE_VF_P0; | |
8931 | else if (lowest_1g == 26) | |
8932 | parent->plat_type = PLAT_TYPE_VF_P1; | |
8933 | else | |
8934 | goto unknown_vg_1g_port; | |
8935 | ||
8936 | /* fallthru */ | |
8937 | case 0x13: | |
8938 | if ((lowest_10g & 0x7) == 0) | |
8939 | val = (phy_encode(PORT_TYPE_10G, 0) | | |
8940 | phy_encode(PORT_TYPE_1G, 1) | | |
8941 | phy_encode(PORT_TYPE_1G, 2) | | |
8942 | phy_encode(PORT_TYPE_1G, 3)); | |
8943 | else | |
8944 | val = (phy_encode(PORT_TYPE_1G, 0) | | |
8945 | phy_encode(PORT_TYPE_10G, 1) | | |
8946 | phy_encode(PORT_TYPE_1G, 2) | | |
8947 | phy_encode(PORT_TYPE_1G, 3)); | |
8948 | break; | |
8949 | ||
8950 | case 0x04: | |
8951 | if (lowest_1g == 10) | |
8952 | parent->plat_type = PLAT_TYPE_VF_P0; | |
8953 | else if (lowest_1g == 26) | |
8954 | parent->plat_type = PLAT_TYPE_VF_P1; | |
8955 | else | |
8956 | goto unknown_vg_1g_port; | |
8957 | ||
8958 | val = (phy_encode(PORT_TYPE_1G, 0) | | |
8959 | phy_encode(PORT_TYPE_1G, 1) | | |
8960 | phy_encode(PORT_TYPE_1G, 2) | | |
8961 | phy_encode(PORT_TYPE_1G, 3)); | |
8962 | break; | |
8963 | ||
8964 | default: | |
8965 | printk(KERN_ERR PFX "Unsupported port config " | |
8966 | "10G[%d] 1G[%d]\n", | |
8967 | num_10g, num_1g); | |
8968 | return -EINVAL; | |
8969 | } | |
a3138df9 DM |
8970 | } |
8971 | ||
8972 | parent->port_phy = val; | |
8973 | ||
8974 | if (parent->plat_type == PLAT_TYPE_NIU) | |
8975 | niu_n2_divide_channels(parent); | |
8976 | else | |
8977 | niu_divide_channels(parent, num_10g, num_1g); | |
8978 | ||
8979 | niu_divide_rdc_groups(parent, num_10g, num_1g); | |
8980 | ||
8981 | return 0; | |
8982 | ||
8983 | unknown_vg_1g_port: | |
8984 | printk(KERN_ERR PFX "Cannot identify platform type, 1gport=%d\n", | |
8985 | lowest_1g); | |
8986 | return -EINVAL; | |
8987 | } | |
8988 | ||
8989 | static int __devinit niu_probe_ports(struct niu *np) | |
8990 | { | |
8991 | struct niu_parent *parent = np->parent; | |
8992 | int err, i; | |
8993 | ||
8994 | niudbg(PROBE, "niu_probe_ports(): port_phy[%08x]\n", | |
8995 | parent->port_phy); | |
8996 | ||
8997 | if (parent->port_phy == PORT_PHY_UNKNOWN) { | |
8998 | err = walk_phys(np, parent); | |
8999 | if (err) | |
9000 | return err; | |
9001 | ||
9002 | niu_set_ldg_timer_res(np, 2); | |
9003 | for (i = 0; i <= LDN_MAX; i++) | |
9004 | niu_ldn_irq_enable(np, i, 0); | |
9005 | } | |
9006 | ||
9007 | if (parent->port_phy == PORT_PHY_INVALID) | |
9008 | return -EINVAL; | |
9009 | ||
9010 | return 0; | |
9011 | } | |
9012 | ||
9013 | static int __devinit niu_classifier_swstate_init(struct niu *np) | |
9014 | { | |
9015 | struct niu_classifier *cp = &np->clas; | |
9016 | ||
9017 | niudbg(PROBE, "niu_classifier_swstate_init: num_tcam(%d)\n", | |
9018 | np->parent->tcam_num_entries); | |
9019 | ||
2d96cf8c SB |
9020 | cp->tcam_top = (u16) np->port; |
9021 | cp->tcam_sz = np->parent->tcam_num_entries / np->parent->num_ports; | |
a3138df9 DM |
9022 | cp->h1_init = 0xffffffff; |
9023 | cp->h2_init = 0xffff; | |
9024 | ||
9025 | return fflp_early_init(np); | |
9026 | } | |
9027 | ||
9028 | static void __devinit niu_link_config_init(struct niu *np) | |
9029 | { | |
9030 | struct niu_link_config *lp = &np->link_config; | |
9031 | ||
9032 | lp->advertising = (ADVERTISED_10baseT_Half | | |
9033 | ADVERTISED_10baseT_Full | | |
9034 | ADVERTISED_100baseT_Half | | |
9035 | ADVERTISED_100baseT_Full | | |
9036 | ADVERTISED_1000baseT_Half | | |
9037 | ADVERTISED_1000baseT_Full | | |
9038 | ADVERTISED_10000baseT_Full | | |
9039 | ADVERTISED_Autoneg); | |
9040 | lp->speed = lp->active_speed = SPEED_INVALID; | |
38bb045d CB |
9041 | lp->duplex = DUPLEX_FULL; |
9042 | lp->active_duplex = DUPLEX_INVALID; | |
9043 | lp->autoneg = 1; | |
a3138df9 DM |
9044 | #if 0 |
9045 | lp->loopback_mode = LOOPBACK_MAC; | |
9046 | lp->active_speed = SPEED_10000; | |
9047 | lp->active_duplex = DUPLEX_FULL; | |
9048 | #else | |
9049 | lp->loopback_mode = LOOPBACK_DISABLED; | |
9050 | #endif | |
9051 | } | |
9052 | ||
9053 | static int __devinit niu_init_mac_ipp_pcs_base(struct niu *np) | |
9054 | { | |
9055 | switch (np->port) { | |
9056 | case 0: | |
9057 | np->mac_regs = np->regs + XMAC_PORT0_OFF; | |
9058 | np->ipp_off = 0x00000; | |
9059 | np->pcs_off = 0x04000; | |
9060 | np->xpcs_off = 0x02000; | |
9061 | break; | |
9062 | ||
9063 | case 1: | |
9064 | np->mac_regs = np->regs + XMAC_PORT1_OFF; | |
9065 | np->ipp_off = 0x08000; | |
9066 | np->pcs_off = 0x0a000; | |
9067 | np->xpcs_off = 0x08000; | |
9068 | break; | |
9069 | ||
9070 | case 2: | |
9071 | np->mac_regs = np->regs + BMAC_PORT2_OFF; | |
9072 | np->ipp_off = 0x04000; | |
9073 | np->pcs_off = 0x0e000; | |
9074 | np->xpcs_off = ~0UL; | |
9075 | break; | |
9076 | ||
9077 | case 3: | |
9078 | np->mac_regs = np->regs + BMAC_PORT3_OFF; | |
9079 | np->ipp_off = 0x0c000; | |
9080 | np->pcs_off = 0x12000; | |
9081 | np->xpcs_off = ~0UL; | |
9082 | break; | |
9083 | ||
9084 | default: | |
9085 | dev_err(np->device, PFX "Port %u is invalid, cannot " | |
9086 | "compute MAC block offset.\n", np->port); | |
9087 | return -EINVAL; | |
9088 | } | |
9089 | ||
9090 | return 0; | |
9091 | } | |
9092 | ||
9093 | static void __devinit niu_try_msix(struct niu *np, u8 *ldg_num_map) | |
9094 | { | |
9095 | struct msix_entry msi_vec[NIU_NUM_LDG]; | |
9096 | struct niu_parent *parent = np->parent; | |
9097 | struct pci_dev *pdev = np->pdev; | |
9098 | int i, num_irqs, err; | |
9099 | u8 first_ldg; | |
9100 | ||
9101 | first_ldg = (NIU_NUM_LDG / parent->num_ports) * np->port; | |
9102 | for (i = 0; i < (NIU_NUM_LDG / parent->num_ports); i++) | |
9103 | ldg_num_map[i] = first_ldg + i; | |
9104 | ||
9105 | num_irqs = (parent->rxchan_per_port[np->port] + | |
9106 | parent->txchan_per_port[np->port] + | |
9107 | (np->port == 0 ? 3 : 1)); | |
9108 | BUG_ON(num_irqs > (NIU_NUM_LDG / parent->num_ports)); | |
9109 | ||
9110 | retry: | |
9111 | for (i = 0; i < num_irqs; i++) { | |
9112 | msi_vec[i].vector = 0; | |
9113 | msi_vec[i].entry = i; | |
9114 | } | |
9115 | ||
9116 | err = pci_enable_msix(pdev, msi_vec, num_irqs); | |
9117 | if (err < 0) { | |
9118 | np->flags &= ~NIU_FLAGS_MSIX; | |
9119 | return; | |
9120 | } | |
9121 | if (err > 0) { | |
9122 | num_irqs = err; | |
9123 | goto retry; | |
9124 | } | |
9125 | ||
9126 | np->flags |= NIU_FLAGS_MSIX; | |
9127 | for (i = 0; i < num_irqs; i++) | |
9128 | np->ldg[i].irq = msi_vec[i].vector; | |
9129 | np->num_ldg = num_irqs; | |
9130 | } | |
9131 | ||
9132 | static int __devinit niu_n2_irq_init(struct niu *np, u8 *ldg_num_map) | |
9133 | { | |
9134 | #ifdef CONFIG_SPARC64 | |
9135 | struct of_device *op = np->op; | |
9136 | const u32 *int_prop; | |
9137 | int i; | |
9138 | ||
9139 | int_prop = of_get_property(op->node, "interrupts", NULL); | |
9140 | if (!int_prop) | |
9141 | return -ENODEV; | |
9142 | ||
9143 | for (i = 0; i < op->num_irqs; i++) { | |
9144 | ldg_num_map[i] = int_prop[i]; | |
9145 | np->ldg[i].irq = op->irqs[i]; | |
9146 | } | |
9147 | ||
9148 | np->num_ldg = op->num_irqs; | |
9149 | ||
9150 | return 0; | |
9151 | #else | |
9152 | return -EINVAL; | |
9153 | #endif | |
9154 | } | |
9155 | ||
9156 | static int __devinit niu_ldg_init(struct niu *np) | |
9157 | { | |
9158 | struct niu_parent *parent = np->parent; | |
9159 | u8 ldg_num_map[NIU_NUM_LDG]; | |
9160 | int first_chan, num_chan; | |
9161 | int i, err, ldg_rotor; | |
9162 | u8 port; | |
9163 | ||
9164 | np->num_ldg = 1; | |
9165 | np->ldg[0].irq = np->dev->irq; | |
9166 | if (parent->plat_type == PLAT_TYPE_NIU) { | |
9167 | err = niu_n2_irq_init(np, ldg_num_map); | |
9168 | if (err) | |
9169 | return err; | |
9170 | } else | |
9171 | niu_try_msix(np, ldg_num_map); | |
9172 | ||
9173 | port = np->port; | |
9174 | for (i = 0; i < np->num_ldg; i++) { | |
9175 | struct niu_ldg *lp = &np->ldg[i]; | |
9176 | ||
9177 | netif_napi_add(np->dev, &lp->napi, niu_poll, 64); | |
9178 | ||
9179 | lp->np = np; | |
9180 | lp->ldg_num = ldg_num_map[i]; | |
9181 | lp->timer = 2; /* XXX */ | |
9182 | ||
9183 | /* On N2 NIU the firmware has setup the SID mappings so they go | |
9184 | * to the correct values that will route the LDG to the proper | |
9185 | * interrupt in the NCU interrupt table. | |
9186 | */ | |
9187 | if (np->parent->plat_type != PLAT_TYPE_NIU) { | |
9188 | err = niu_set_ldg_sid(np, lp->ldg_num, port, i); | |
9189 | if (err) | |
9190 | return err; | |
9191 | } | |
9192 | } | |
9193 | ||
9194 | /* We adopt the LDG assignment ordering used by the N2 NIU | |
9195 | * 'interrupt' properties because that simplifies a lot of | |
9196 | * things. This ordering is: | |
9197 | * | |
9198 | * MAC | |
9199 | * MIF (if port zero) | |
9200 | * SYSERR (if port zero) | |
9201 | * RX channels | |
9202 | * TX channels | |
9203 | */ | |
9204 | ||
9205 | ldg_rotor = 0; | |
9206 | ||
9207 | err = niu_ldg_assign_ldn(np, parent, ldg_num_map[ldg_rotor], | |
9208 | LDN_MAC(port)); | |
9209 | if (err) | |
9210 | return err; | |
9211 | ||
9212 | ldg_rotor++; | |
9213 | if (ldg_rotor == np->num_ldg) | |
9214 | ldg_rotor = 0; | |
9215 | ||
9216 | if (port == 0) { | |
9217 | err = niu_ldg_assign_ldn(np, parent, | |
9218 | ldg_num_map[ldg_rotor], | |
9219 | LDN_MIF); | |
9220 | if (err) | |
9221 | return err; | |
9222 | ||
9223 | ldg_rotor++; | |
9224 | if (ldg_rotor == np->num_ldg) | |
9225 | ldg_rotor = 0; | |
9226 | ||
9227 | err = niu_ldg_assign_ldn(np, parent, | |
9228 | ldg_num_map[ldg_rotor], | |
9229 | LDN_DEVICE_ERROR); | |
9230 | if (err) | |
9231 | return err; | |
9232 | ||
9233 | ldg_rotor++; | |
9234 | if (ldg_rotor == np->num_ldg) | |
9235 | ldg_rotor = 0; | |
9236 | ||
9237 | } | |
9238 | ||
9239 | first_chan = 0; | |
9240 | for (i = 0; i < port; i++) | |
9241 | first_chan += parent->rxchan_per_port[port]; | |
9242 | num_chan = parent->rxchan_per_port[port]; | |
9243 | ||
9244 | for (i = first_chan; i < (first_chan + num_chan); i++) { | |
9245 | err = niu_ldg_assign_ldn(np, parent, | |
9246 | ldg_num_map[ldg_rotor], | |
9247 | LDN_RXDMA(i)); | |
9248 | if (err) | |
9249 | return err; | |
9250 | ldg_rotor++; | |
9251 | if (ldg_rotor == np->num_ldg) | |
9252 | ldg_rotor = 0; | |
9253 | } | |
9254 | ||
9255 | first_chan = 0; | |
9256 | for (i = 0; i < port; i++) | |
9257 | first_chan += parent->txchan_per_port[port]; | |
9258 | num_chan = parent->txchan_per_port[port]; | |
9259 | for (i = first_chan; i < (first_chan + num_chan); i++) { | |
9260 | err = niu_ldg_assign_ldn(np, parent, | |
9261 | ldg_num_map[ldg_rotor], | |
9262 | LDN_TXDMA(i)); | |
9263 | if (err) | |
9264 | return err; | |
9265 | ldg_rotor++; | |
9266 | if (ldg_rotor == np->num_ldg) | |
9267 | ldg_rotor = 0; | |
9268 | } | |
9269 | ||
9270 | return 0; | |
9271 | } | |
9272 | ||
9273 | static void __devexit niu_ldg_free(struct niu *np) | |
9274 | { | |
9275 | if (np->flags & NIU_FLAGS_MSIX) | |
9276 | pci_disable_msix(np->pdev); | |
9277 | } | |
9278 | ||
9279 | static int __devinit niu_get_of_props(struct niu *np) | |
9280 | { | |
9281 | #ifdef CONFIG_SPARC64 | |
9282 | struct net_device *dev = np->dev; | |
9283 | struct device_node *dp; | |
9284 | const char *phy_type; | |
9285 | const u8 *mac_addr; | |
f9af8574 | 9286 | const char *model; |
a3138df9 DM |
9287 | int prop_len; |
9288 | ||
9289 | if (np->parent->plat_type == PLAT_TYPE_NIU) | |
9290 | dp = np->op->node; | |
9291 | else | |
9292 | dp = pci_device_to_OF_node(np->pdev); | |
9293 | ||
9294 | phy_type = of_get_property(dp, "phy-type", &prop_len); | |
9295 | if (!phy_type) { | |
9296 | dev_err(np->device, PFX "%s: OF node lacks " | |
9297 | "phy-type property\n", | |
9298 | dp->full_name); | |
9299 | return -EINVAL; | |
9300 | } | |
9301 | ||
9302 | if (!strcmp(phy_type, "none")) | |
9303 | return -ENODEV; | |
9304 | ||
9305 | strcpy(np->vpd.phy_type, phy_type); | |
9306 | ||
9307 | if (niu_phy_type_prop_decode(np, np->vpd.phy_type)) { | |
9308 | dev_err(np->device, PFX "%s: Illegal phy string [%s].\n", | |
9309 | dp->full_name, np->vpd.phy_type); | |
9310 | return -EINVAL; | |
9311 | } | |
9312 | ||
9313 | mac_addr = of_get_property(dp, "local-mac-address", &prop_len); | |
9314 | if (!mac_addr) { | |
9315 | dev_err(np->device, PFX "%s: OF node lacks " | |
9316 | "local-mac-address property\n", | |
9317 | dp->full_name); | |
9318 | return -EINVAL; | |
9319 | } | |
9320 | if (prop_len != dev->addr_len) { | |
9321 | dev_err(np->device, PFX "%s: OF MAC address prop len (%d) " | |
9322 | "is wrong.\n", | |
9323 | dp->full_name, prop_len); | |
9324 | } | |
9325 | memcpy(dev->perm_addr, mac_addr, dev->addr_len); | |
9326 | if (!is_valid_ether_addr(&dev->perm_addr[0])) { | |
9327 | int i; | |
9328 | ||
9329 | dev_err(np->device, PFX "%s: OF MAC address is invalid\n", | |
9330 | dp->full_name); | |
9331 | dev_err(np->device, PFX "%s: [ \n", | |
9332 | dp->full_name); | |
9333 | for (i = 0; i < 6; i++) | |
9334 | printk("%02x ", dev->perm_addr[i]); | |
9335 | printk("]\n"); | |
9336 | return -EINVAL; | |
9337 | } | |
9338 | ||
9339 | memcpy(dev->dev_addr, dev->perm_addr, dev->addr_len); | |
f9af8574 MW |
9340 | |
9341 | model = of_get_property(dp, "model", &prop_len); | |
9342 | ||
9343 | if (model) | |
9344 | strcpy(np->vpd.model, model); | |
a3138df9 DM |
9345 | |
9346 | return 0; | |
9347 | #else | |
9348 | return -EINVAL; | |
9349 | #endif | |
9350 | } | |
9351 | ||
9352 | static int __devinit niu_get_invariants(struct niu *np) | |
9353 | { | |
9354 | int err, have_props; | |
9355 | u32 offset; | |
9356 | ||
9357 | err = niu_get_of_props(np); | |
9358 | if (err == -ENODEV) | |
9359 | return err; | |
9360 | ||
9361 | have_props = !err; | |
9362 | ||
a3138df9 DM |
9363 | err = niu_init_mac_ipp_pcs_base(np); |
9364 | if (err) | |
9365 | return err; | |
9366 | ||
7f7c4072 MW |
9367 | if (have_props) { |
9368 | err = niu_get_and_validate_port(np); | |
9369 | if (err) | |
9370 | return err; | |
9371 | ||
9372 | } else { | |
a3138df9 DM |
9373 | if (np->parent->plat_type == PLAT_TYPE_NIU) |
9374 | return -EINVAL; | |
9375 | ||
9376 | nw64(ESPC_PIO_EN, ESPC_PIO_EN_ENABLE); | |
9377 | offset = niu_pci_vpd_offset(np); | |
9378 | niudbg(PROBE, "niu_get_invariants: VPD offset [%08x]\n", | |
9379 | offset); | |
9380 | if (offset) | |
9381 | niu_pci_vpd_fetch(np, offset); | |
9382 | nw64(ESPC_PIO_EN, 0); | |
9383 | ||
7f7c4072 | 9384 | if (np->flags & NIU_FLAGS_VPD_VALID) { |
a3138df9 | 9385 | niu_pci_vpd_validate(np); |
7f7c4072 MW |
9386 | err = niu_get_and_validate_port(np); |
9387 | if (err) | |
9388 | return err; | |
9389 | } | |
a3138df9 DM |
9390 | |
9391 | if (!(np->flags & NIU_FLAGS_VPD_VALID)) { | |
7f7c4072 MW |
9392 | err = niu_get_and_validate_port(np); |
9393 | if (err) | |
9394 | return err; | |
a3138df9 DM |
9395 | err = niu_pci_probe_sprom(np); |
9396 | if (err) | |
9397 | return err; | |
9398 | } | |
9399 | } | |
9400 | ||
9401 | err = niu_probe_ports(np); | |
9402 | if (err) | |
9403 | return err; | |
9404 | ||
9405 | niu_ldg_init(np); | |
9406 | ||
9407 | niu_classifier_swstate_init(np); | |
9408 | niu_link_config_init(np); | |
9409 | ||
9410 | err = niu_determine_phy_disposition(np); | |
9411 | if (!err) | |
9412 | err = niu_init_link(np); | |
9413 | ||
9414 | return err; | |
9415 | } | |
9416 | ||
9417 | static LIST_HEAD(niu_parent_list); | |
9418 | static DEFINE_MUTEX(niu_parent_lock); | |
9419 | static int niu_parent_index; | |
9420 | ||
9421 | static ssize_t show_port_phy(struct device *dev, | |
9422 | struct device_attribute *attr, char *buf) | |
9423 | { | |
9424 | struct platform_device *plat_dev = to_platform_device(dev); | |
9425 | struct niu_parent *p = plat_dev->dev.platform_data; | |
9426 | u32 port_phy = p->port_phy; | |
9427 | char *orig_buf = buf; | |
9428 | int i; | |
9429 | ||
9430 | if (port_phy == PORT_PHY_UNKNOWN || | |
9431 | port_phy == PORT_PHY_INVALID) | |
9432 | return 0; | |
9433 | ||
9434 | for (i = 0; i < p->num_ports; i++) { | |
9435 | const char *type_str; | |
9436 | int type; | |
9437 | ||
9438 | type = phy_decode(port_phy, i); | |
9439 | if (type == PORT_TYPE_10G) | |
9440 | type_str = "10G"; | |
9441 | else | |
9442 | type_str = "1G"; | |
9443 | buf += sprintf(buf, | |
9444 | (i == 0) ? "%s" : " %s", | |
9445 | type_str); | |
9446 | } | |
9447 | buf += sprintf(buf, "\n"); | |
9448 | return buf - orig_buf; | |
9449 | } | |
9450 | ||
9451 | static ssize_t show_plat_type(struct device *dev, | |
9452 | struct device_attribute *attr, char *buf) | |
9453 | { | |
9454 | struct platform_device *plat_dev = to_platform_device(dev); | |
9455 | struct niu_parent *p = plat_dev->dev.platform_data; | |
9456 | const char *type_str; | |
9457 | ||
9458 | switch (p->plat_type) { | |
9459 | case PLAT_TYPE_ATLAS: | |
9460 | type_str = "atlas"; | |
9461 | break; | |
9462 | case PLAT_TYPE_NIU: | |
9463 | type_str = "niu"; | |
9464 | break; | |
9465 | case PLAT_TYPE_VF_P0: | |
9466 | type_str = "vf_p0"; | |
9467 | break; | |
9468 | case PLAT_TYPE_VF_P1: | |
9469 | type_str = "vf_p1"; | |
9470 | break; | |
9471 | default: | |
9472 | type_str = "unknown"; | |
9473 | break; | |
9474 | } | |
9475 | ||
9476 | return sprintf(buf, "%s\n", type_str); | |
9477 | } | |
9478 | ||
9479 | static ssize_t __show_chan_per_port(struct device *dev, | |
9480 | struct device_attribute *attr, char *buf, | |
9481 | int rx) | |
9482 | { | |
9483 | struct platform_device *plat_dev = to_platform_device(dev); | |
9484 | struct niu_parent *p = plat_dev->dev.platform_data; | |
9485 | char *orig_buf = buf; | |
9486 | u8 *arr; | |
9487 | int i; | |
9488 | ||
9489 | arr = (rx ? p->rxchan_per_port : p->txchan_per_port); | |
9490 | ||
9491 | for (i = 0; i < p->num_ports; i++) { | |
9492 | buf += sprintf(buf, | |
9493 | (i == 0) ? "%d" : " %d", | |
9494 | arr[i]); | |
9495 | } | |
9496 | buf += sprintf(buf, "\n"); | |
9497 | ||
9498 | return buf - orig_buf; | |
9499 | } | |
9500 | ||
9501 | static ssize_t show_rxchan_per_port(struct device *dev, | |
9502 | struct device_attribute *attr, char *buf) | |
9503 | { | |
9504 | return __show_chan_per_port(dev, attr, buf, 1); | |
9505 | } | |
9506 | ||
9507 | static ssize_t show_txchan_per_port(struct device *dev, | |
9508 | struct device_attribute *attr, char *buf) | |
9509 | { | |
9510 | return __show_chan_per_port(dev, attr, buf, 1); | |
9511 | } | |
9512 | ||
9513 | static ssize_t show_num_ports(struct device *dev, | |
9514 | struct device_attribute *attr, char *buf) | |
9515 | { | |
9516 | struct platform_device *plat_dev = to_platform_device(dev); | |
9517 | struct niu_parent *p = plat_dev->dev.platform_data; | |
9518 | ||
9519 | return sprintf(buf, "%d\n", p->num_ports); | |
9520 | } | |
9521 | ||
9522 | static struct device_attribute niu_parent_attributes[] = { | |
9523 | __ATTR(port_phy, S_IRUGO, show_port_phy, NULL), | |
9524 | __ATTR(plat_type, S_IRUGO, show_plat_type, NULL), | |
9525 | __ATTR(rxchan_per_port, S_IRUGO, show_rxchan_per_port, NULL), | |
9526 | __ATTR(txchan_per_port, S_IRUGO, show_txchan_per_port, NULL), | |
9527 | __ATTR(num_ports, S_IRUGO, show_num_ports, NULL), | |
9528 | {} | |
9529 | }; | |
9530 | ||
9531 | static struct niu_parent * __devinit niu_new_parent(struct niu *np, | |
9532 | union niu_parent_id *id, | |
9533 | u8 ptype) | |
9534 | { | |
9535 | struct platform_device *plat_dev; | |
9536 | struct niu_parent *p; | |
9537 | int i; | |
9538 | ||
9539 | niudbg(PROBE, "niu_new_parent: Creating new parent.\n"); | |
9540 | ||
9541 | plat_dev = platform_device_register_simple("niu", niu_parent_index, | |
9542 | NULL, 0); | |
9543 | if (!plat_dev) | |
9544 | return NULL; | |
9545 | ||
9546 | for (i = 0; attr_name(niu_parent_attributes[i]); i++) { | |
9547 | int err = device_create_file(&plat_dev->dev, | |
9548 | &niu_parent_attributes[i]); | |
9549 | if (err) | |
9550 | goto fail_unregister; | |
9551 | } | |
9552 | ||
9553 | p = kzalloc(sizeof(*p), GFP_KERNEL); | |
9554 | if (!p) | |
9555 | goto fail_unregister; | |
9556 | ||
9557 | p->index = niu_parent_index++; | |
9558 | ||
9559 | plat_dev->dev.platform_data = p; | |
9560 | p->plat_dev = plat_dev; | |
9561 | ||
9562 | memcpy(&p->id, id, sizeof(*id)); | |
9563 | p->plat_type = ptype; | |
9564 | INIT_LIST_HEAD(&p->list); | |
9565 | atomic_set(&p->refcnt, 0); | |
9566 | list_add(&p->list, &niu_parent_list); | |
9567 | spin_lock_init(&p->lock); | |
9568 | ||
9569 | p->rxdma_clock_divider = 7500; | |
9570 | ||
9571 | p->tcam_num_entries = NIU_PCI_TCAM_ENTRIES; | |
9572 | if (p->plat_type == PLAT_TYPE_NIU) | |
9573 | p->tcam_num_entries = NIU_NONPCI_TCAM_ENTRIES; | |
9574 | ||
9575 | for (i = CLASS_CODE_USER_PROG1; i <= CLASS_CODE_SCTP_IPV6; i++) { | |
9576 | int index = i - CLASS_CODE_USER_PROG1; | |
9577 | ||
9578 | p->tcam_key[index] = TCAM_KEY_TSEL; | |
9579 | p->flow_key[index] = (FLOW_KEY_IPSA | | |
9580 | FLOW_KEY_IPDA | | |
9581 | FLOW_KEY_PROTO | | |
9582 | (FLOW_KEY_L4_BYTE12 << | |
9583 | FLOW_KEY_L4_0_SHIFT) | | |
9584 | (FLOW_KEY_L4_BYTE12 << | |
9585 | FLOW_KEY_L4_1_SHIFT)); | |
9586 | } | |
9587 | ||
9588 | for (i = 0; i < LDN_MAX + 1; i++) | |
9589 | p->ldg_map[i] = LDG_INVALID; | |
9590 | ||
9591 | return p; | |
9592 | ||
9593 | fail_unregister: | |
9594 | platform_device_unregister(plat_dev); | |
9595 | return NULL; | |
9596 | } | |
9597 | ||
9598 | static struct niu_parent * __devinit niu_get_parent(struct niu *np, | |
9599 | union niu_parent_id *id, | |
9600 | u8 ptype) | |
9601 | { | |
9602 | struct niu_parent *p, *tmp; | |
9603 | int port = np->port; | |
9604 | ||
9605 | niudbg(PROBE, "niu_get_parent: platform_type[%u] port[%u]\n", | |
9606 | ptype, port); | |
9607 | ||
9608 | mutex_lock(&niu_parent_lock); | |
9609 | p = NULL; | |
9610 | list_for_each_entry(tmp, &niu_parent_list, list) { | |
9611 | if (!memcmp(id, &tmp->id, sizeof(*id))) { | |
9612 | p = tmp; | |
9613 | break; | |
9614 | } | |
9615 | } | |
9616 | if (!p) | |
9617 | p = niu_new_parent(np, id, ptype); | |
9618 | ||
9619 | if (p) { | |
9620 | char port_name[6]; | |
9621 | int err; | |
9622 | ||
9623 | sprintf(port_name, "port%d", port); | |
9624 | err = sysfs_create_link(&p->plat_dev->dev.kobj, | |
9625 | &np->device->kobj, | |
9626 | port_name); | |
9627 | if (!err) { | |
9628 | p->ports[port] = np; | |
9629 | atomic_inc(&p->refcnt); | |
9630 | } | |
9631 | } | |
9632 | mutex_unlock(&niu_parent_lock); | |
9633 | ||
9634 | return p; | |
9635 | } | |
9636 | ||
9637 | static void niu_put_parent(struct niu *np) | |
9638 | { | |
9639 | struct niu_parent *p = np->parent; | |
9640 | u8 port = np->port; | |
9641 | char port_name[6]; | |
9642 | ||
9643 | BUG_ON(!p || p->ports[port] != np); | |
9644 | ||
9645 | niudbg(PROBE, "niu_put_parent: port[%u]\n", port); | |
9646 | ||
9647 | sprintf(port_name, "port%d", port); | |
9648 | ||
9649 | mutex_lock(&niu_parent_lock); | |
9650 | ||
9651 | sysfs_remove_link(&p->plat_dev->dev.kobj, port_name); | |
9652 | ||
9653 | p->ports[port] = NULL; | |
9654 | np->parent = NULL; | |
9655 | ||
9656 | if (atomic_dec_and_test(&p->refcnt)) { | |
9657 | list_del(&p->list); | |
9658 | platform_device_unregister(p->plat_dev); | |
9659 | } | |
9660 | ||
9661 | mutex_unlock(&niu_parent_lock); | |
9662 | } | |
9663 | ||
9664 | static void *niu_pci_alloc_coherent(struct device *dev, size_t size, | |
9665 | u64 *handle, gfp_t flag) | |
9666 | { | |
9667 | dma_addr_t dh; | |
9668 | void *ret; | |
9669 | ||
9670 | ret = dma_alloc_coherent(dev, size, &dh, flag); | |
9671 | if (ret) | |
9672 | *handle = dh; | |
9673 | return ret; | |
9674 | } | |
9675 | ||
9676 | static void niu_pci_free_coherent(struct device *dev, size_t size, | |
9677 | void *cpu_addr, u64 handle) | |
9678 | { | |
9679 | dma_free_coherent(dev, size, cpu_addr, handle); | |
9680 | } | |
9681 | ||
9682 | static u64 niu_pci_map_page(struct device *dev, struct page *page, | |
9683 | unsigned long offset, size_t size, | |
9684 | enum dma_data_direction direction) | |
9685 | { | |
9686 | return dma_map_page(dev, page, offset, size, direction); | |
9687 | } | |
9688 | ||
9689 | static void niu_pci_unmap_page(struct device *dev, u64 dma_address, | |
9690 | size_t size, enum dma_data_direction direction) | |
9691 | { | |
a08b32df | 9692 | dma_unmap_page(dev, dma_address, size, direction); |
a3138df9 DM |
9693 | } |
9694 | ||
9695 | static u64 niu_pci_map_single(struct device *dev, void *cpu_addr, | |
9696 | size_t size, | |
9697 | enum dma_data_direction direction) | |
9698 | { | |
9699 | return dma_map_single(dev, cpu_addr, size, direction); | |
9700 | } | |
9701 | ||
9702 | static void niu_pci_unmap_single(struct device *dev, u64 dma_address, | |
9703 | size_t size, | |
9704 | enum dma_data_direction direction) | |
9705 | { | |
9706 | dma_unmap_single(dev, dma_address, size, direction); | |
9707 | } | |
9708 | ||
9709 | static const struct niu_ops niu_pci_ops = { | |
9710 | .alloc_coherent = niu_pci_alloc_coherent, | |
9711 | .free_coherent = niu_pci_free_coherent, | |
9712 | .map_page = niu_pci_map_page, | |
9713 | .unmap_page = niu_pci_unmap_page, | |
9714 | .map_single = niu_pci_map_single, | |
9715 | .unmap_single = niu_pci_unmap_single, | |
9716 | }; | |
9717 | ||
9718 | static void __devinit niu_driver_version(void) | |
9719 | { | |
9720 | static int niu_version_printed; | |
9721 | ||
9722 | if (niu_version_printed++ == 0) | |
9723 | pr_info("%s", version); | |
9724 | } | |
9725 | ||
9726 | static struct net_device * __devinit niu_alloc_and_init( | |
9727 | struct device *gen_dev, struct pci_dev *pdev, | |
9728 | struct of_device *op, const struct niu_ops *ops, | |
9729 | u8 port) | |
9730 | { | |
b4c21639 | 9731 | struct net_device *dev; |
a3138df9 DM |
9732 | struct niu *np; |
9733 | ||
b4c21639 | 9734 | dev = alloc_etherdev_mq(sizeof(struct niu), NIU_NUM_TXCHAN); |
a3138df9 DM |
9735 | if (!dev) { |
9736 | dev_err(gen_dev, PFX "Etherdev alloc failed, aborting.\n"); | |
9737 | return NULL; | |
9738 | } | |
9739 | ||
9740 | SET_NETDEV_DEV(dev, gen_dev); | |
9741 | ||
9742 | np = netdev_priv(dev); | |
9743 | np->dev = dev; | |
9744 | np->pdev = pdev; | |
9745 | np->op = op; | |
9746 | np->device = gen_dev; | |
9747 | np->ops = ops; | |
9748 | ||
9749 | np->msg_enable = niu_debug; | |
9750 | ||
9751 | spin_lock_init(&np->lock); | |
9752 | INIT_WORK(&np->reset_task, niu_reset_task); | |
9753 | ||
9754 | np->port = port; | |
9755 | ||
9756 | return dev; | |
9757 | } | |
9758 | ||
2c9171d4 SH |
9759 | static const struct net_device_ops niu_netdev_ops = { |
9760 | .ndo_open = niu_open, | |
9761 | .ndo_stop = niu_close, | |
00829823 | 9762 | .ndo_start_xmit = niu_start_xmit, |
2c9171d4 SH |
9763 | .ndo_get_stats = niu_get_stats, |
9764 | .ndo_set_multicast_list = niu_set_rx_mode, | |
9765 | .ndo_validate_addr = eth_validate_addr, | |
9766 | .ndo_set_mac_address = niu_set_mac_addr, | |
9767 | .ndo_do_ioctl = niu_ioctl, | |
9768 | .ndo_tx_timeout = niu_tx_timeout, | |
9769 | .ndo_change_mtu = niu_change_mtu, | |
9770 | }; | |
9771 | ||
a3138df9 DM |
9772 | static void __devinit niu_assign_netdev_ops(struct net_device *dev) |
9773 | { | |
2c9171d4 | 9774 | dev->netdev_ops = &niu_netdev_ops; |
a3138df9 DM |
9775 | dev->ethtool_ops = &niu_ethtool_ops; |
9776 | dev->watchdog_timeo = NIU_TX_TIMEOUT; | |
a3138df9 DM |
9777 | } |
9778 | ||
9779 | static void __devinit niu_device_announce(struct niu *np) | |
9780 | { | |
9781 | struct net_device *dev = np->dev; | |
a3138df9 | 9782 | |
e174961c | 9783 | pr_info("%s: NIU Ethernet %pM\n", dev->name, dev->dev_addr); |
a3138df9 | 9784 | |
5fbd7e24 MW |
9785 | if (np->parent->plat_type == PLAT_TYPE_ATCA_CP3220) { |
9786 | pr_info("%s: Port type[%s] mode[%s:%s] XCVR[%s] phy[%s]\n", | |
9787 | dev->name, | |
9788 | (np->flags & NIU_FLAGS_XMAC ? "XMAC" : "BMAC"), | |
9789 | (np->flags & NIU_FLAGS_10G ? "10G" : "1G"), | |
9790 | (np->flags & NIU_FLAGS_FIBER ? "RGMII FIBER" : "SERDES"), | |
9791 | (np->mac_xcvr == MAC_XCVR_MII ? "MII" : | |
9792 | (np->mac_xcvr == MAC_XCVR_PCS ? "PCS" : "XPCS")), | |
9793 | np->vpd.phy_type); | |
9794 | } else { | |
9795 | pr_info("%s: Port type[%s] mode[%s:%s] XCVR[%s] phy[%s]\n", | |
9796 | dev->name, | |
9797 | (np->flags & NIU_FLAGS_XMAC ? "XMAC" : "BMAC"), | |
9798 | (np->flags & NIU_FLAGS_10G ? "10G" : "1G"), | |
e3e081e1 SB |
9799 | (np->flags & NIU_FLAGS_FIBER ? "FIBER" : |
9800 | (np->flags & NIU_FLAGS_XCVR_SERDES ? "SERDES" : | |
9801 | "COPPER")), | |
5fbd7e24 MW |
9802 | (np->mac_xcvr == MAC_XCVR_MII ? "MII" : |
9803 | (np->mac_xcvr == MAC_XCVR_PCS ? "PCS" : "XPCS")), | |
9804 | np->vpd.phy_type); | |
9805 | } | |
a3138df9 DM |
9806 | } |
9807 | ||
9808 | static int __devinit niu_pci_init_one(struct pci_dev *pdev, | |
9809 | const struct pci_device_id *ent) | |
9810 | { | |
a3138df9 DM |
9811 | union niu_parent_id parent_id; |
9812 | struct net_device *dev; | |
9813 | struct niu *np; | |
9814 | int err, pos; | |
9815 | u64 dma_mask; | |
9816 | u16 val16; | |
9817 | ||
9818 | niu_driver_version(); | |
9819 | ||
9820 | err = pci_enable_device(pdev); | |
9821 | if (err) { | |
9822 | dev_err(&pdev->dev, PFX "Cannot enable PCI device, " | |
9823 | "aborting.\n"); | |
9824 | return err; | |
9825 | } | |
9826 | ||
9827 | if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM) || | |
9828 | !(pci_resource_flags(pdev, 2) & IORESOURCE_MEM)) { | |
9829 | dev_err(&pdev->dev, PFX "Cannot find proper PCI device " | |
9830 | "base addresses, aborting.\n"); | |
9831 | err = -ENODEV; | |
9832 | goto err_out_disable_pdev; | |
9833 | } | |
9834 | ||
9835 | err = pci_request_regions(pdev, DRV_MODULE_NAME); | |
9836 | if (err) { | |
9837 | dev_err(&pdev->dev, PFX "Cannot obtain PCI resources, " | |
9838 | "aborting.\n"); | |
9839 | goto err_out_disable_pdev; | |
9840 | } | |
9841 | ||
9842 | pos = pci_find_capability(pdev, PCI_CAP_ID_EXP); | |
9843 | if (pos <= 0) { | |
9844 | dev_err(&pdev->dev, PFX "Cannot find PCI Express capability, " | |
9845 | "aborting.\n"); | |
9846 | goto err_out_free_res; | |
9847 | } | |
9848 | ||
9849 | dev = niu_alloc_and_init(&pdev->dev, pdev, NULL, | |
9850 | &niu_pci_ops, PCI_FUNC(pdev->devfn)); | |
9851 | if (!dev) { | |
9852 | err = -ENOMEM; | |
9853 | goto err_out_free_res; | |
9854 | } | |
9855 | np = netdev_priv(dev); | |
9856 | ||
9857 | memset(&parent_id, 0, sizeof(parent_id)); | |
9858 | parent_id.pci.domain = pci_domain_nr(pdev->bus); | |
9859 | parent_id.pci.bus = pdev->bus->number; | |
9860 | parent_id.pci.device = PCI_SLOT(pdev->devfn); | |
9861 | ||
9862 | np->parent = niu_get_parent(np, &parent_id, | |
9863 | PLAT_TYPE_ATLAS); | |
9864 | if (!np->parent) { | |
9865 | err = -ENOMEM; | |
9866 | goto err_out_free_dev; | |
9867 | } | |
9868 | ||
9869 | pci_read_config_word(pdev, pos + PCI_EXP_DEVCTL, &val16); | |
9870 | val16 &= ~PCI_EXP_DEVCTL_NOSNOOP_EN; | |
9871 | val16 |= (PCI_EXP_DEVCTL_CERE | | |
9872 | PCI_EXP_DEVCTL_NFERE | | |
9873 | PCI_EXP_DEVCTL_FERE | | |
9874 | PCI_EXP_DEVCTL_URRE | | |
9875 | PCI_EXP_DEVCTL_RELAX_EN); | |
9876 | pci_write_config_word(pdev, pos + PCI_EXP_DEVCTL, val16); | |
9877 | ||
9878 | dma_mask = DMA_44BIT_MASK; | |
9879 | err = pci_set_dma_mask(pdev, dma_mask); | |
9880 | if (!err) { | |
9881 | dev->features |= NETIF_F_HIGHDMA; | |
9882 | err = pci_set_consistent_dma_mask(pdev, dma_mask); | |
9883 | if (err) { | |
9884 | dev_err(&pdev->dev, PFX "Unable to obtain 44 bit " | |
9885 | "DMA for consistent allocations, " | |
9886 | "aborting.\n"); | |
9887 | goto err_out_release_parent; | |
9888 | } | |
9889 | } | |
9890 | if (err || dma_mask == DMA_32BIT_MASK) { | |
9891 | err = pci_set_dma_mask(pdev, DMA_32BIT_MASK); | |
9892 | if (err) { | |
9893 | dev_err(&pdev->dev, PFX "No usable DMA configuration, " | |
9894 | "aborting.\n"); | |
9895 | goto err_out_release_parent; | |
9896 | } | |
9897 | } | |
9898 | ||
9899 | dev->features |= (NETIF_F_SG | NETIF_F_HW_CSUM); | |
9900 | ||
19ecb6ba | 9901 | np->regs = pci_ioremap_bar(pdev, 0); |
a3138df9 DM |
9902 | if (!np->regs) { |
9903 | dev_err(&pdev->dev, PFX "Cannot map device registers, " | |
9904 | "aborting.\n"); | |
9905 | err = -ENOMEM; | |
9906 | goto err_out_release_parent; | |
9907 | } | |
9908 | ||
9909 | pci_set_master(pdev); | |
9910 | pci_save_state(pdev); | |
9911 | ||
9912 | dev->irq = pdev->irq; | |
9913 | ||
9914 | niu_assign_netdev_ops(dev); | |
9915 | ||
9916 | err = niu_get_invariants(np); | |
9917 | if (err) { | |
9918 | if (err != -ENODEV) | |
9919 | dev_err(&pdev->dev, PFX "Problem fetching invariants " | |
9920 | "of chip, aborting.\n"); | |
9921 | goto err_out_iounmap; | |
9922 | } | |
9923 | ||
9924 | err = register_netdev(dev); | |
9925 | if (err) { | |
9926 | dev_err(&pdev->dev, PFX "Cannot register net device, " | |
9927 | "aborting.\n"); | |
9928 | goto err_out_iounmap; | |
9929 | } | |
9930 | ||
9931 | pci_set_drvdata(pdev, dev); | |
9932 | ||
9933 | niu_device_announce(np); | |
9934 | ||
9935 | return 0; | |
9936 | ||
9937 | err_out_iounmap: | |
9938 | if (np->regs) { | |
9939 | iounmap(np->regs); | |
9940 | np->regs = NULL; | |
9941 | } | |
9942 | ||
9943 | err_out_release_parent: | |
9944 | niu_put_parent(np); | |
9945 | ||
9946 | err_out_free_dev: | |
9947 | free_netdev(dev); | |
9948 | ||
9949 | err_out_free_res: | |
9950 | pci_release_regions(pdev); | |
9951 | ||
9952 | err_out_disable_pdev: | |
9953 | pci_disable_device(pdev); | |
9954 | pci_set_drvdata(pdev, NULL); | |
9955 | ||
9956 | return err; | |
9957 | } | |
9958 | ||
9959 | static void __devexit niu_pci_remove_one(struct pci_dev *pdev) | |
9960 | { | |
9961 | struct net_device *dev = pci_get_drvdata(pdev); | |
9962 | ||
9963 | if (dev) { | |
9964 | struct niu *np = netdev_priv(dev); | |
9965 | ||
9966 | unregister_netdev(dev); | |
9967 | if (np->regs) { | |
9968 | iounmap(np->regs); | |
9969 | np->regs = NULL; | |
9970 | } | |
9971 | ||
9972 | niu_ldg_free(np); | |
9973 | ||
9974 | niu_put_parent(np); | |
9975 | ||
9976 | free_netdev(dev); | |
9977 | pci_release_regions(pdev); | |
9978 | pci_disable_device(pdev); | |
9979 | pci_set_drvdata(pdev, NULL); | |
9980 | } | |
9981 | } | |
9982 | ||
9983 | static int niu_suspend(struct pci_dev *pdev, pm_message_t state) | |
9984 | { | |
9985 | struct net_device *dev = pci_get_drvdata(pdev); | |
9986 | struct niu *np = netdev_priv(dev); | |
9987 | unsigned long flags; | |
9988 | ||
9989 | if (!netif_running(dev)) | |
9990 | return 0; | |
9991 | ||
9992 | flush_scheduled_work(); | |
9993 | niu_netif_stop(np); | |
9994 | ||
9995 | del_timer_sync(&np->timer); | |
9996 | ||
9997 | spin_lock_irqsave(&np->lock, flags); | |
9998 | niu_enable_interrupts(np, 0); | |
9999 | spin_unlock_irqrestore(&np->lock, flags); | |
10000 | ||
10001 | netif_device_detach(dev); | |
10002 | ||
10003 | spin_lock_irqsave(&np->lock, flags); | |
10004 | niu_stop_hw(np); | |
10005 | spin_unlock_irqrestore(&np->lock, flags); | |
10006 | ||
10007 | pci_save_state(pdev); | |
10008 | ||
10009 | return 0; | |
10010 | } | |
10011 | ||
10012 | static int niu_resume(struct pci_dev *pdev) | |
10013 | { | |
10014 | struct net_device *dev = pci_get_drvdata(pdev); | |
10015 | struct niu *np = netdev_priv(dev); | |
10016 | unsigned long flags; | |
10017 | int err; | |
10018 | ||
10019 | if (!netif_running(dev)) | |
10020 | return 0; | |
10021 | ||
10022 | pci_restore_state(pdev); | |
10023 | ||
10024 | netif_device_attach(dev); | |
10025 | ||
10026 | spin_lock_irqsave(&np->lock, flags); | |
10027 | ||
10028 | err = niu_init_hw(np); | |
10029 | if (!err) { | |
10030 | np->timer.expires = jiffies + HZ; | |
10031 | add_timer(&np->timer); | |
10032 | niu_netif_start(np); | |
10033 | } | |
10034 | ||
10035 | spin_unlock_irqrestore(&np->lock, flags); | |
10036 | ||
10037 | return err; | |
10038 | } | |
10039 | ||
10040 | static struct pci_driver niu_pci_driver = { | |
10041 | .name = DRV_MODULE_NAME, | |
10042 | .id_table = niu_pci_tbl, | |
10043 | .probe = niu_pci_init_one, | |
10044 | .remove = __devexit_p(niu_pci_remove_one), | |
10045 | .suspend = niu_suspend, | |
10046 | .resume = niu_resume, | |
10047 | }; | |
10048 | ||
10049 | #ifdef CONFIG_SPARC64 | |
10050 | static void *niu_phys_alloc_coherent(struct device *dev, size_t size, | |
10051 | u64 *dma_addr, gfp_t flag) | |
10052 | { | |
10053 | unsigned long order = get_order(size); | |
10054 | unsigned long page = __get_free_pages(flag, order); | |
10055 | ||
10056 | if (page == 0UL) | |
10057 | return NULL; | |
10058 | memset((char *)page, 0, PAGE_SIZE << order); | |
10059 | *dma_addr = __pa(page); | |
10060 | ||
10061 | return (void *) page; | |
10062 | } | |
10063 | ||
10064 | static void niu_phys_free_coherent(struct device *dev, size_t size, | |
10065 | void *cpu_addr, u64 handle) | |
10066 | { | |
10067 | unsigned long order = get_order(size); | |
10068 | ||
10069 | free_pages((unsigned long) cpu_addr, order); | |
10070 | } | |
10071 | ||
10072 | static u64 niu_phys_map_page(struct device *dev, struct page *page, | |
10073 | unsigned long offset, size_t size, | |
10074 | enum dma_data_direction direction) | |
10075 | { | |
10076 | return page_to_phys(page) + offset; | |
10077 | } | |
10078 | ||
10079 | static void niu_phys_unmap_page(struct device *dev, u64 dma_address, | |
10080 | size_t size, enum dma_data_direction direction) | |
10081 | { | |
10082 | /* Nothing to do. */ | |
10083 | } | |
10084 | ||
10085 | static u64 niu_phys_map_single(struct device *dev, void *cpu_addr, | |
10086 | size_t size, | |
10087 | enum dma_data_direction direction) | |
10088 | { | |
10089 | return __pa(cpu_addr); | |
10090 | } | |
10091 | ||
10092 | static void niu_phys_unmap_single(struct device *dev, u64 dma_address, | |
10093 | size_t size, | |
10094 | enum dma_data_direction direction) | |
10095 | { | |
10096 | /* Nothing to do. */ | |
10097 | } | |
10098 | ||
10099 | static const struct niu_ops niu_phys_ops = { | |
10100 | .alloc_coherent = niu_phys_alloc_coherent, | |
10101 | .free_coherent = niu_phys_free_coherent, | |
10102 | .map_page = niu_phys_map_page, | |
10103 | .unmap_page = niu_phys_unmap_page, | |
10104 | .map_single = niu_phys_map_single, | |
10105 | .unmap_single = niu_phys_unmap_single, | |
10106 | }; | |
10107 | ||
10108 | static unsigned long res_size(struct resource *r) | |
10109 | { | |
10110 | return r->end - r->start + 1UL; | |
10111 | } | |
10112 | ||
10113 | static int __devinit niu_of_probe(struct of_device *op, | |
10114 | const struct of_device_id *match) | |
10115 | { | |
10116 | union niu_parent_id parent_id; | |
10117 | struct net_device *dev; | |
10118 | struct niu *np; | |
10119 | const u32 *reg; | |
10120 | int err; | |
10121 | ||
10122 | niu_driver_version(); | |
10123 | ||
10124 | reg = of_get_property(op->node, "reg", NULL); | |
10125 | if (!reg) { | |
10126 | dev_err(&op->dev, PFX "%s: No 'reg' property, aborting.\n", | |
10127 | op->node->full_name); | |
10128 | return -ENODEV; | |
10129 | } | |
10130 | ||
10131 | dev = niu_alloc_and_init(&op->dev, NULL, op, | |
10132 | &niu_phys_ops, reg[0] & 0x1); | |
10133 | if (!dev) { | |
10134 | err = -ENOMEM; | |
10135 | goto err_out; | |
10136 | } | |
10137 | np = netdev_priv(dev); | |
10138 | ||
10139 | memset(&parent_id, 0, sizeof(parent_id)); | |
10140 | parent_id.of = of_get_parent(op->node); | |
10141 | ||
10142 | np->parent = niu_get_parent(np, &parent_id, | |
10143 | PLAT_TYPE_NIU); | |
10144 | if (!np->parent) { | |
10145 | err = -ENOMEM; | |
10146 | goto err_out_free_dev; | |
10147 | } | |
10148 | ||
10149 | dev->features |= (NETIF_F_SG | NETIF_F_HW_CSUM); | |
10150 | ||
10151 | np->regs = of_ioremap(&op->resource[1], 0, | |
10152 | res_size(&op->resource[1]), | |
10153 | "niu regs"); | |
10154 | if (!np->regs) { | |
10155 | dev_err(&op->dev, PFX "Cannot map device registers, " | |
10156 | "aborting.\n"); | |
10157 | err = -ENOMEM; | |
10158 | goto err_out_release_parent; | |
10159 | } | |
10160 | ||
10161 | np->vir_regs_1 = of_ioremap(&op->resource[2], 0, | |
10162 | res_size(&op->resource[2]), | |
10163 | "niu vregs-1"); | |
10164 | if (!np->vir_regs_1) { | |
10165 | dev_err(&op->dev, PFX "Cannot map device vir registers 1, " | |
10166 | "aborting.\n"); | |
10167 | err = -ENOMEM; | |
10168 | goto err_out_iounmap; | |
10169 | } | |
10170 | ||
10171 | np->vir_regs_2 = of_ioremap(&op->resource[3], 0, | |
10172 | res_size(&op->resource[3]), | |
10173 | "niu vregs-2"); | |
10174 | if (!np->vir_regs_2) { | |
10175 | dev_err(&op->dev, PFX "Cannot map device vir registers 2, " | |
10176 | "aborting.\n"); | |
10177 | err = -ENOMEM; | |
10178 | goto err_out_iounmap; | |
10179 | } | |
10180 | ||
10181 | niu_assign_netdev_ops(dev); | |
10182 | ||
10183 | err = niu_get_invariants(np); | |
10184 | if (err) { | |
10185 | if (err != -ENODEV) | |
10186 | dev_err(&op->dev, PFX "Problem fetching invariants " | |
10187 | "of chip, aborting.\n"); | |
10188 | goto err_out_iounmap; | |
10189 | } | |
10190 | ||
10191 | err = register_netdev(dev); | |
10192 | if (err) { | |
10193 | dev_err(&op->dev, PFX "Cannot register net device, " | |
10194 | "aborting.\n"); | |
10195 | goto err_out_iounmap; | |
10196 | } | |
10197 | ||
10198 | dev_set_drvdata(&op->dev, dev); | |
10199 | ||
10200 | niu_device_announce(np); | |
10201 | ||
10202 | return 0; | |
10203 | ||
10204 | err_out_iounmap: | |
10205 | if (np->vir_regs_1) { | |
10206 | of_iounmap(&op->resource[2], np->vir_regs_1, | |
10207 | res_size(&op->resource[2])); | |
10208 | np->vir_regs_1 = NULL; | |
10209 | } | |
10210 | ||
10211 | if (np->vir_regs_2) { | |
10212 | of_iounmap(&op->resource[3], np->vir_regs_2, | |
10213 | res_size(&op->resource[3])); | |
10214 | np->vir_regs_2 = NULL; | |
10215 | } | |
10216 | ||
10217 | if (np->regs) { | |
10218 | of_iounmap(&op->resource[1], np->regs, | |
10219 | res_size(&op->resource[1])); | |
10220 | np->regs = NULL; | |
10221 | } | |
10222 | ||
10223 | err_out_release_parent: | |
10224 | niu_put_parent(np); | |
10225 | ||
10226 | err_out_free_dev: | |
10227 | free_netdev(dev); | |
10228 | ||
10229 | err_out: | |
10230 | return err; | |
10231 | } | |
10232 | ||
10233 | static int __devexit niu_of_remove(struct of_device *op) | |
10234 | { | |
10235 | struct net_device *dev = dev_get_drvdata(&op->dev); | |
10236 | ||
10237 | if (dev) { | |
10238 | struct niu *np = netdev_priv(dev); | |
10239 | ||
10240 | unregister_netdev(dev); | |
10241 | ||
10242 | if (np->vir_regs_1) { | |
10243 | of_iounmap(&op->resource[2], np->vir_regs_1, | |
10244 | res_size(&op->resource[2])); | |
10245 | np->vir_regs_1 = NULL; | |
10246 | } | |
10247 | ||
10248 | if (np->vir_regs_2) { | |
10249 | of_iounmap(&op->resource[3], np->vir_regs_2, | |
10250 | res_size(&op->resource[3])); | |
10251 | np->vir_regs_2 = NULL; | |
10252 | } | |
10253 | ||
10254 | if (np->regs) { | |
10255 | of_iounmap(&op->resource[1], np->regs, | |
10256 | res_size(&op->resource[1])); | |
10257 | np->regs = NULL; | |
10258 | } | |
10259 | ||
10260 | niu_ldg_free(np); | |
10261 | ||
10262 | niu_put_parent(np); | |
10263 | ||
10264 | free_netdev(dev); | |
10265 | dev_set_drvdata(&op->dev, NULL); | |
10266 | } | |
10267 | return 0; | |
10268 | } | |
10269 | ||
fd098316 | 10270 | static const struct of_device_id niu_match[] = { |
a3138df9 DM |
10271 | { |
10272 | .name = "network", | |
10273 | .compatible = "SUNW,niusl", | |
10274 | }, | |
10275 | {}, | |
10276 | }; | |
10277 | MODULE_DEVICE_TABLE(of, niu_match); | |
10278 | ||
10279 | static struct of_platform_driver niu_of_driver = { | |
10280 | .name = "niu", | |
10281 | .match_table = niu_match, | |
10282 | .probe = niu_of_probe, | |
10283 | .remove = __devexit_p(niu_of_remove), | |
10284 | }; | |
10285 | ||
10286 | #endif /* CONFIG_SPARC64 */ | |
10287 | ||
10288 | static int __init niu_init(void) | |
10289 | { | |
10290 | int err = 0; | |
10291 | ||
81429973 | 10292 | BUILD_BUG_ON(PAGE_SIZE < 4 * 1024); |
a3138df9 DM |
10293 | |
10294 | niu_debug = netif_msg_init(debug, NIU_MSG_DEFAULT); | |
10295 | ||
10296 | #ifdef CONFIG_SPARC64 | |
10297 | err = of_register_driver(&niu_of_driver, &of_bus_type); | |
10298 | #endif | |
10299 | ||
10300 | if (!err) { | |
10301 | err = pci_register_driver(&niu_pci_driver); | |
10302 | #ifdef CONFIG_SPARC64 | |
10303 | if (err) | |
10304 | of_unregister_driver(&niu_of_driver); | |
10305 | #endif | |
10306 | } | |
10307 | ||
10308 | return err; | |
10309 | } | |
10310 | ||
10311 | static void __exit niu_exit(void) | |
10312 | { | |
10313 | pci_unregister_driver(&niu_pci_driver); | |
10314 | #ifdef CONFIG_SPARC64 | |
10315 | of_unregister_driver(&niu_of_driver); | |
10316 | #endif | |
10317 | } | |
10318 | ||
10319 | module_init(niu_init); | |
10320 | module_exit(niu_exit); |