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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 | ||
f10a1f2e JP |
6 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
7 | ||
a3138df9 DM |
8 | #include <linux/module.h> |
9 | #include <linux/init.h> | |
10 | #include <linux/pci.h> | |
11 | #include <linux/dma-mapping.h> | |
12 | #include <linux/netdevice.h> | |
13 | #include <linux/ethtool.h> | |
14 | #include <linux/etherdevice.h> | |
15 | #include <linux/platform_device.h> | |
16 | #include <linux/delay.h> | |
17 | #include <linux/bitops.h> | |
18 | #include <linux/mii.h> | |
19 | #include <linux/if_ether.h> | |
20 | #include <linux/if_vlan.h> | |
21 | #include <linux/ip.h> | |
22 | #include <linux/in.h> | |
23 | #include <linux/ipv6.h> | |
24 | #include <linux/log2.h> | |
25 | #include <linux/jiffies.h> | |
26 | #include <linux/crc32.h> | |
ccffad25 | 27 | #include <linux/list.h> |
5a0e3ad6 | 28 | #include <linux/slab.h> |
a3138df9 DM |
29 | |
30 | #include <linux/io.h> | |
a3138df9 | 31 | #include <linux/of_device.h> |
a3138df9 DM |
32 | |
33 | #include "niu.h" | |
34 | ||
35 | #define DRV_MODULE_NAME "niu" | |
3cfa856d DM |
36 | #define DRV_MODULE_VERSION "1.1" |
37 | #define DRV_MODULE_RELDATE "Apr 22, 2010" | |
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 | ||
a3138df9 DM |
47 | #ifndef readq |
48 | static u64 readq(void __iomem *reg) | |
49 | { | |
e23a59e1 | 50 | return ((u64) readl(reg)) | (((u64) readl(reg + 4UL)) << 32); |
a3138df9 DM |
51 | } |
52 | ||
53 | static void writeq(u64 val, void __iomem *reg) | |
54 | { | |
55 | writel(val & 0xffffffff, reg); | |
56 | writel(val >> 32, reg + 0x4UL); | |
57 | } | |
58 | #endif | |
59 | ||
a3aa1884 | 60 | static DEFINE_PCI_DEVICE_TABLE(niu_pci_tbl) = { |
a3138df9 DM |
61 | {PCI_DEVICE(PCI_VENDOR_ID_SUN, 0xabcd)}, |
62 | {} | |
63 | }; | |
64 | ||
65 | MODULE_DEVICE_TABLE(pci, niu_pci_tbl); | |
66 | ||
67 | #define NIU_TX_TIMEOUT (5 * HZ) | |
68 | ||
69 | #define nr64(reg) readq(np->regs + (reg)) | |
70 | #define nw64(reg, val) writeq((val), np->regs + (reg)) | |
71 | ||
72 | #define nr64_mac(reg) readq(np->mac_regs + (reg)) | |
73 | #define nw64_mac(reg, val) writeq((val), np->mac_regs + (reg)) | |
74 | ||
75 | #define nr64_ipp(reg) readq(np->regs + np->ipp_off + (reg)) | |
76 | #define nw64_ipp(reg, val) writeq((val), np->regs + np->ipp_off + (reg)) | |
77 | ||
78 | #define nr64_pcs(reg) readq(np->regs + np->pcs_off + (reg)) | |
79 | #define nw64_pcs(reg, val) writeq((val), np->regs + np->pcs_off + (reg)) | |
80 | ||
81 | #define nr64_xpcs(reg) readq(np->regs + np->xpcs_off + (reg)) | |
82 | #define nw64_xpcs(reg, val) writeq((val), np->regs + np->xpcs_off + (reg)) | |
83 | ||
84 | #define NIU_MSG_DEFAULT (NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_LINK) | |
85 | ||
86 | static int niu_debug; | |
87 | static int debug = -1; | |
88 | module_param(debug, int, 0); | |
89 | MODULE_PARM_DESC(debug, "NIU debug level"); | |
90 | ||
a3138df9 DM |
91 | #define niu_lock_parent(np, flags) \ |
92 | spin_lock_irqsave(&np->parent->lock, flags) | |
93 | #define niu_unlock_parent(np, flags) \ | |
94 | spin_unlock_irqrestore(&np->parent->lock, flags) | |
95 | ||
5fbd7e24 MW |
96 | static int serdes_init_10g_serdes(struct niu *np); |
97 | ||
a3138df9 DM |
98 | static int __niu_wait_bits_clear_mac(struct niu *np, unsigned long reg, |
99 | u64 bits, int limit, int delay) | |
100 | { | |
101 | while (--limit >= 0) { | |
102 | u64 val = nr64_mac(reg); | |
103 | ||
104 | if (!(val & bits)) | |
105 | break; | |
106 | udelay(delay); | |
107 | } | |
108 | if (limit < 0) | |
109 | return -ENODEV; | |
110 | return 0; | |
111 | } | |
112 | ||
113 | static int __niu_set_and_wait_clear_mac(struct niu *np, unsigned long reg, | |
114 | u64 bits, int limit, int delay, | |
115 | const char *reg_name) | |
116 | { | |
117 | int err; | |
118 | ||
119 | nw64_mac(reg, bits); | |
120 | err = __niu_wait_bits_clear_mac(np, reg, bits, limit, delay); | |
121 | if (err) | |
f10a1f2e JP |
122 | netdev_err(np->dev, "bits (%llx) of register %s would not clear, val[%llx]\n", |
123 | (unsigned long long)bits, reg_name, | |
124 | (unsigned long long)nr64_mac(reg)); | |
a3138df9 DM |
125 | return err; |
126 | } | |
127 | ||
128 | #define niu_set_and_wait_clear_mac(NP, REG, BITS, LIMIT, DELAY, REG_NAME) \ | |
129 | ({ BUILD_BUG_ON(LIMIT <= 0 || DELAY < 0); \ | |
130 | __niu_set_and_wait_clear_mac(NP, REG, BITS, LIMIT, DELAY, REG_NAME); \ | |
131 | }) | |
132 | ||
133 | static int __niu_wait_bits_clear_ipp(struct niu *np, unsigned long reg, | |
134 | u64 bits, int limit, int delay) | |
135 | { | |
136 | while (--limit >= 0) { | |
137 | u64 val = nr64_ipp(reg); | |
138 | ||
139 | if (!(val & bits)) | |
140 | break; | |
141 | udelay(delay); | |
142 | } | |
143 | if (limit < 0) | |
144 | return -ENODEV; | |
145 | return 0; | |
146 | } | |
147 | ||
148 | static int __niu_set_and_wait_clear_ipp(struct niu *np, unsigned long reg, | |
149 | u64 bits, int limit, int delay, | |
150 | const char *reg_name) | |
151 | { | |
152 | int err; | |
153 | u64 val; | |
154 | ||
155 | val = nr64_ipp(reg); | |
156 | val |= bits; | |
157 | nw64_ipp(reg, val); | |
158 | ||
159 | err = __niu_wait_bits_clear_ipp(np, reg, bits, limit, delay); | |
160 | if (err) | |
f10a1f2e JP |
161 | netdev_err(np->dev, "bits (%llx) of register %s would not clear, val[%llx]\n", |
162 | (unsigned long long)bits, reg_name, | |
163 | (unsigned long long)nr64_ipp(reg)); | |
a3138df9 DM |
164 | return err; |
165 | } | |
166 | ||
167 | #define niu_set_and_wait_clear_ipp(NP, REG, BITS, LIMIT, DELAY, REG_NAME) \ | |
168 | ({ BUILD_BUG_ON(LIMIT <= 0 || DELAY < 0); \ | |
169 | __niu_set_and_wait_clear_ipp(NP, REG, BITS, LIMIT, DELAY, REG_NAME); \ | |
170 | }) | |
171 | ||
172 | static int __niu_wait_bits_clear(struct niu *np, unsigned long reg, | |
173 | u64 bits, int limit, int delay) | |
174 | { | |
175 | while (--limit >= 0) { | |
176 | u64 val = nr64(reg); | |
177 | ||
178 | if (!(val & bits)) | |
179 | break; | |
180 | udelay(delay); | |
181 | } | |
182 | if (limit < 0) | |
183 | return -ENODEV; | |
184 | return 0; | |
185 | } | |
186 | ||
187 | #define niu_wait_bits_clear(NP, REG, BITS, LIMIT, DELAY) \ | |
188 | ({ BUILD_BUG_ON(LIMIT <= 0 || DELAY < 0); \ | |
189 | __niu_wait_bits_clear(NP, REG, BITS, LIMIT, DELAY); \ | |
190 | }) | |
191 | ||
192 | static int __niu_set_and_wait_clear(struct niu *np, unsigned long reg, | |
193 | u64 bits, int limit, int delay, | |
194 | const char *reg_name) | |
195 | { | |
196 | int err; | |
197 | ||
198 | nw64(reg, bits); | |
199 | err = __niu_wait_bits_clear(np, reg, bits, limit, delay); | |
200 | if (err) | |
f10a1f2e JP |
201 | netdev_err(np->dev, "bits (%llx) of register %s would not clear, val[%llx]\n", |
202 | (unsigned long long)bits, reg_name, | |
203 | (unsigned long long)nr64(reg)); | |
a3138df9 DM |
204 | return err; |
205 | } | |
206 | ||
207 | #define niu_set_and_wait_clear(NP, REG, BITS, LIMIT, DELAY, REG_NAME) \ | |
208 | ({ BUILD_BUG_ON(LIMIT <= 0 || DELAY < 0); \ | |
209 | __niu_set_and_wait_clear(NP, REG, BITS, LIMIT, DELAY, REG_NAME); \ | |
210 | }) | |
211 | ||
212 | static void niu_ldg_rearm(struct niu *np, struct niu_ldg *lp, int on) | |
213 | { | |
214 | u64 val = (u64) lp->timer; | |
215 | ||
216 | if (on) | |
217 | val |= LDG_IMGMT_ARM; | |
218 | ||
219 | nw64(LDG_IMGMT(lp->ldg_num), val); | |
220 | } | |
221 | ||
222 | static int niu_ldn_irq_enable(struct niu *np, int ldn, int on) | |
223 | { | |
224 | unsigned long mask_reg, bits; | |
225 | u64 val; | |
226 | ||
227 | if (ldn < 0 || ldn > LDN_MAX) | |
228 | return -EINVAL; | |
229 | ||
230 | if (ldn < 64) { | |
231 | mask_reg = LD_IM0(ldn); | |
232 | bits = LD_IM0_MASK; | |
233 | } else { | |
234 | mask_reg = LD_IM1(ldn - 64); | |
235 | bits = LD_IM1_MASK; | |
236 | } | |
237 | ||
238 | val = nr64(mask_reg); | |
239 | if (on) | |
240 | val &= ~bits; | |
241 | else | |
242 | val |= bits; | |
243 | nw64(mask_reg, val); | |
244 | ||
245 | return 0; | |
246 | } | |
247 | ||
248 | static int niu_enable_ldn_in_ldg(struct niu *np, struct niu_ldg *lp, int on) | |
249 | { | |
250 | struct niu_parent *parent = np->parent; | |
251 | int i; | |
252 | ||
253 | for (i = 0; i <= LDN_MAX; i++) { | |
254 | int err; | |
255 | ||
256 | if (parent->ldg_map[i] != lp->ldg_num) | |
257 | continue; | |
258 | ||
259 | err = niu_ldn_irq_enable(np, i, on); | |
260 | if (err) | |
261 | return err; | |
262 | } | |
263 | return 0; | |
264 | } | |
265 | ||
266 | static int niu_enable_interrupts(struct niu *np, int on) | |
267 | { | |
268 | int i; | |
269 | ||
270 | for (i = 0; i < np->num_ldg; i++) { | |
271 | struct niu_ldg *lp = &np->ldg[i]; | |
272 | int err; | |
273 | ||
274 | err = niu_enable_ldn_in_ldg(np, lp, on); | |
275 | if (err) | |
276 | return err; | |
277 | } | |
278 | for (i = 0; i < np->num_ldg; i++) | |
279 | niu_ldg_rearm(np, &np->ldg[i], on); | |
280 | ||
281 | return 0; | |
282 | } | |
283 | ||
284 | static u32 phy_encode(u32 type, int port) | |
285 | { | |
286 | return (type << (port * 2)); | |
287 | } | |
288 | ||
289 | static u32 phy_decode(u32 val, int port) | |
290 | { | |
291 | return (val >> (port * 2)) & PORT_TYPE_MASK; | |
292 | } | |
293 | ||
294 | static int mdio_wait(struct niu *np) | |
295 | { | |
296 | int limit = 1000; | |
297 | u64 val; | |
298 | ||
299 | while (--limit > 0) { | |
300 | val = nr64(MIF_FRAME_OUTPUT); | |
301 | if ((val >> MIF_FRAME_OUTPUT_TA_SHIFT) & 0x1) | |
302 | return val & MIF_FRAME_OUTPUT_DATA; | |
303 | ||
304 | udelay(10); | |
305 | } | |
306 | ||
307 | return -ENODEV; | |
308 | } | |
309 | ||
310 | static int mdio_read(struct niu *np, int port, int dev, int reg) | |
311 | { | |
312 | int err; | |
313 | ||
314 | nw64(MIF_FRAME_OUTPUT, MDIO_ADDR_OP(port, dev, reg)); | |
315 | err = mdio_wait(np); | |
316 | if (err < 0) | |
317 | return err; | |
318 | ||
319 | nw64(MIF_FRAME_OUTPUT, MDIO_READ_OP(port, dev)); | |
320 | return mdio_wait(np); | |
321 | } | |
322 | ||
323 | static int mdio_write(struct niu *np, int port, int dev, int reg, int data) | |
324 | { | |
325 | int err; | |
326 | ||
327 | nw64(MIF_FRAME_OUTPUT, MDIO_ADDR_OP(port, dev, reg)); | |
328 | err = mdio_wait(np); | |
329 | if (err < 0) | |
330 | return err; | |
331 | ||
332 | nw64(MIF_FRAME_OUTPUT, MDIO_WRITE_OP(port, dev, data)); | |
333 | err = mdio_wait(np); | |
334 | if (err < 0) | |
335 | return err; | |
336 | ||
337 | return 0; | |
338 | } | |
339 | ||
340 | static int mii_read(struct niu *np, int port, int reg) | |
341 | { | |
342 | nw64(MIF_FRAME_OUTPUT, MII_READ_OP(port, reg)); | |
343 | return mdio_wait(np); | |
344 | } | |
345 | ||
346 | static int mii_write(struct niu *np, int port, int reg, int data) | |
347 | { | |
348 | int err; | |
349 | ||
350 | nw64(MIF_FRAME_OUTPUT, MII_WRITE_OP(port, reg, data)); | |
351 | err = mdio_wait(np); | |
352 | if (err < 0) | |
353 | return err; | |
354 | ||
355 | return 0; | |
356 | } | |
357 | ||
358 | static int esr2_set_tx_cfg(struct niu *np, unsigned long channel, u32 val) | |
359 | { | |
360 | int err; | |
361 | ||
362 | err = mdio_write(np, np->port, NIU_ESR2_DEV_ADDR, | |
363 | ESR2_TI_PLL_TX_CFG_L(channel), | |
364 | val & 0xffff); | |
365 | if (!err) | |
366 | err = mdio_write(np, np->port, NIU_ESR2_DEV_ADDR, | |
367 | ESR2_TI_PLL_TX_CFG_H(channel), | |
368 | val >> 16); | |
369 | return err; | |
370 | } | |
371 | ||
372 | static int esr2_set_rx_cfg(struct niu *np, unsigned long channel, u32 val) | |
373 | { | |
374 | int err; | |
375 | ||
376 | err = mdio_write(np, np->port, NIU_ESR2_DEV_ADDR, | |
377 | ESR2_TI_PLL_RX_CFG_L(channel), | |
378 | val & 0xffff); | |
379 | if (!err) | |
380 | err = mdio_write(np, np->port, NIU_ESR2_DEV_ADDR, | |
381 | ESR2_TI_PLL_RX_CFG_H(channel), | |
382 | val >> 16); | |
383 | return err; | |
384 | } | |
385 | ||
386 | /* Mode is always 10G fiber. */ | |
e3e081e1 | 387 | static int serdes_init_niu_10g_fiber(struct niu *np) |
a3138df9 DM |
388 | { |
389 | struct niu_link_config *lp = &np->link_config; | |
390 | u32 tx_cfg, rx_cfg; | |
391 | unsigned long i; | |
392 | ||
393 | tx_cfg = (PLL_TX_CFG_ENTX | PLL_TX_CFG_SWING_1375MV); | |
394 | rx_cfg = (PLL_RX_CFG_ENRX | PLL_RX_CFG_TERM_0P8VDDT | | |
395 | PLL_RX_CFG_ALIGN_ENA | PLL_RX_CFG_LOS_LTHRESH | | |
396 | PLL_RX_CFG_EQ_LP_ADAPTIVE); | |
397 | ||
398 | if (lp->loopback_mode == LOOPBACK_PHY) { | |
399 | u16 test_cfg = PLL_TEST_CFG_LOOPBACK_CML_DIS; | |
400 | ||
401 | mdio_write(np, np->port, NIU_ESR2_DEV_ADDR, | |
402 | ESR2_TI_PLL_TEST_CFG_L, test_cfg); | |
403 | ||
404 | tx_cfg |= PLL_TX_CFG_ENTEST; | |
405 | rx_cfg |= PLL_RX_CFG_ENTEST; | |
406 | } | |
407 | ||
408 | /* Initialize all 4 lanes of the SERDES. */ | |
409 | for (i = 0; i < 4; i++) { | |
410 | int err = esr2_set_tx_cfg(np, i, tx_cfg); | |
411 | if (err) | |
412 | return err; | |
413 | } | |
414 | ||
415 | for (i = 0; i < 4; i++) { | |
416 | int err = esr2_set_rx_cfg(np, i, rx_cfg); | |
417 | if (err) | |
418 | return err; | |
419 | } | |
420 | ||
421 | return 0; | |
422 | } | |
423 | ||
e3e081e1 SB |
424 | static int serdes_init_niu_1g_serdes(struct niu *np) |
425 | { | |
426 | struct niu_link_config *lp = &np->link_config; | |
427 | u16 pll_cfg, pll_sts; | |
428 | int max_retry = 100; | |
51e0f058 | 429 | u64 uninitialized_var(sig), mask, val; |
e3e081e1 SB |
430 | u32 tx_cfg, rx_cfg; |
431 | unsigned long i; | |
432 | int err; | |
433 | ||
434 | tx_cfg = (PLL_TX_CFG_ENTX | PLL_TX_CFG_SWING_1375MV | | |
435 | PLL_TX_CFG_RATE_HALF); | |
436 | rx_cfg = (PLL_RX_CFG_ENRX | PLL_RX_CFG_TERM_0P8VDDT | | |
437 | PLL_RX_CFG_ALIGN_ENA | PLL_RX_CFG_LOS_LTHRESH | | |
438 | PLL_RX_CFG_RATE_HALF); | |
439 | ||
440 | if (np->port == 0) | |
441 | rx_cfg |= PLL_RX_CFG_EQ_LP_ADAPTIVE; | |
442 | ||
443 | if (lp->loopback_mode == LOOPBACK_PHY) { | |
444 | u16 test_cfg = PLL_TEST_CFG_LOOPBACK_CML_DIS; | |
445 | ||
446 | mdio_write(np, np->port, NIU_ESR2_DEV_ADDR, | |
447 | ESR2_TI_PLL_TEST_CFG_L, test_cfg); | |
448 | ||
449 | tx_cfg |= PLL_TX_CFG_ENTEST; | |
450 | rx_cfg |= PLL_RX_CFG_ENTEST; | |
451 | } | |
452 | ||
453 | /* Initialize PLL for 1G */ | |
454 | pll_cfg = (PLL_CFG_ENPLL | PLL_CFG_MPY_8X); | |
455 | ||
456 | err = mdio_write(np, np->port, NIU_ESR2_DEV_ADDR, | |
457 | ESR2_TI_PLL_CFG_L, pll_cfg); | |
458 | if (err) { | |
f10a1f2e JP |
459 | netdev_err(np->dev, "NIU Port %d %s() mdio write to ESR2_TI_PLL_CFG_L failed\n", |
460 | np->port, __func__); | |
e3e081e1 SB |
461 | return err; |
462 | } | |
463 | ||
464 | pll_sts = PLL_CFG_ENPLL; | |
465 | ||
466 | err = mdio_write(np, np->port, NIU_ESR2_DEV_ADDR, | |
467 | ESR2_TI_PLL_STS_L, pll_sts); | |
468 | if (err) { | |
f10a1f2e JP |
469 | netdev_err(np->dev, "NIU Port %d %s() mdio write to ESR2_TI_PLL_STS_L failed\n", |
470 | np->port, __func__); | |
e3e081e1 SB |
471 | return err; |
472 | } | |
473 | ||
474 | udelay(200); | |
475 | ||
476 | /* Initialize all 4 lanes of the SERDES. */ | |
477 | for (i = 0; i < 4; i++) { | |
478 | err = esr2_set_tx_cfg(np, i, tx_cfg); | |
479 | if (err) | |
480 | return err; | |
481 | } | |
482 | ||
483 | for (i = 0; i < 4; i++) { | |
484 | err = esr2_set_rx_cfg(np, i, rx_cfg); | |
485 | if (err) | |
486 | return err; | |
487 | } | |
488 | ||
489 | switch (np->port) { | |
490 | case 0: | |
491 | val = (ESR_INT_SRDY0_P0 | ESR_INT_DET0_P0); | |
492 | mask = val; | |
493 | break; | |
494 | ||
495 | case 1: | |
496 | val = (ESR_INT_SRDY0_P1 | ESR_INT_DET0_P1); | |
497 | mask = val; | |
498 | break; | |
499 | ||
500 | default: | |
501 | return -EINVAL; | |
502 | } | |
503 | ||
504 | while (max_retry--) { | |
505 | sig = nr64(ESR_INT_SIGNALS); | |
506 | if ((sig & mask) == val) | |
507 | break; | |
508 | ||
509 | mdelay(500); | |
510 | } | |
511 | ||
512 | if ((sig & mask) != val) { | |
f10a1f2e JP |
513 | netdev_err(np->dev, "Port %u signal bits [%08x] are not [%08x]\n", |
514 | np->port, (int)(sig & mask), (int)val); | |
e3e081e1 SB |
515 | return -ENODEV; |
516 | } | |
517 | ||
518 | return 0; | |
519 | } | |
520 | ||
521 | static int serdes_init_niu_10g_serdes(struct niu *np) | |
522 | { | |
523 | struct niu_link_config *lp = &np->link_config; | |
524 | u32 tx_cfg, rx_cfg, pll_cfg, pll_sts; | |
525 | int max_retry = 100; | |
51e0f058 | 526 | u64 uninitialized_var(sig), mask, val; |
e3e081e1 SB |
527 | unsigned long i; |
528 | int err; | |
529 | ||
530 | tx_cfg = (PLL_TX_CFG_ENTX | PLL_TX_CFG_SWING_1375MV); | |
531 | rx_cfg = (PLL_RX_CFG_ENRX | PLL_RX_CFG_TERM_0P8VDDT | | |
532 | PLL_RX_CFG_ALIGN_ENA | PLL_RX_CFG_LOS_LTHRESH | | |
533 | PLL_RX_CFG_EQ_LP_ADAPTIVE); | |
534 | ||
535 | if (lp->loopback_mode == LOOPBACK_PHY) { | |
536 | u16 test_cfg = PLL_TEST_CFG_LOOPBACK_CML_DIS; | |
537 | ||
538 | mdio_write(np, np->port, NIU_ESR2_DEV_ADDR, | |
539 | ESR2_TI_PLL_TEST_CFG_L, test_cfg); | |
540 | ||
541 | tx_cfg |= PLL_TX_CFG_ENTEST; | |
542 | rx_cfg |= PLL_RX_CFG_ENTEST; | |
543 | } | |
544 | ||
545 | /* Initialize PLL for 10G */ | |
546 | pll_cfg = (PLL_CFG_ENPLL | PLL_CFG_MPY_10X); | |
547 | ||
548 | err = mdio_write(np, np->port, NIU_ESR2_DEV_ADDR, | |
549 | ESR2_TI_PLL_CFG_L, pll_cfg & 0xffff); | |
550 | if (err) { | |
f10a1f2e JP |
551 | netdev_err(np->dev, "NIU Port %d %s() mdio write to ESR2_TI_PLL_CFG_L failed\n", |
552 | np->port, __func__); | |
e3e081e1 SB |
553 | return err; |
554 | } | |
555 | ||
556 | pll_sts = PLL_CFG_ENPLL; | |
557 | ||
558 | err = mdio_write(np, np->port, NIU_ESR2_DEV_ADDR, | |
559 | ESR2_TI_PLL_STS_L, pll_sts & 0xffff); | |
560 | if (err) { | |
f10a1f2e JP |
561 | netdev_err(np->dev, "NIU Port %d %s() mdio write to ESR2_TI_PLL_STS_L failed\n", |
562 | np->port, __func__); | |
e3e081e1 SB |
563 | return err; |
564 | } | |
565 | ||
566 | udelay(200); | |
567 | ||
568 | /* Initialize all 4 lanes of the SERDES. */ | |
569 | for (i = 0; i < 4; i++) { | |
570 | err = esr2_set_tx_cfg(np, i, tx_cfg); | |
571 | if (err) | |
572 | return err; | |
573 | } | |
574 | ||
575 | for (i = 0; i < 4; i++) { | |
576 | err = esr2_set_rx_cfg(np, i, rx_cfg); | |
577 | if (err) | |
578 | return err; | |
579 | } | |
580 | ||
581 | /* check if serdes is ready */ | |
582 | ||
583 | switch (np->port) { | |
584 | case 0: | |
585 | mask = ESR_INT_SIGNALS_P0_BITS; | |
586 | val = (ESR_INT_SRDY0_P0 | | |
587 | ESR_INT_DET0_P0 | | |
588 | ESR_INT_XSRDY_P0 | | |
589 | ESR_INT_XDP_P0_CH3 | | |
590 | ESR_INT_XDP_P0_CH2 | | |
591 | ESR_INT_XDP_P0_CH1 | | |
592 | ESR_INT_XDP_P0_CH0); | |
593 | break; | |
594 | ||
595 | case 1: | |
596 | mask = ESR_INT_SIGNALS_P1_BITS; | |
597 | val = (ESR_INT_SRDY0_P1 | | |
598 | ESR_INT_DET0_P1 | | |
599 | ESR_INT_XSRDY_P1 | | |
600 | ESR_INT_XDP_P1_CH3 | | |
601 | ESR_INT_XDP_P1_CH2 | | |
602 | ESR_INT_XDP_P1_CH1 | | |
603 | ESR_INT_XDP_P1_CH0); | |
604 | break; | |
605 | ||
606 | default: | |
607 | return -EINVAL; | |
608 | } | |
609 | ||
610 | while (max_retry--) { | |
611 | sig = nr64(ESR_INT_SIGNALS); | |
612 | if ((sig & mask) == val) | |
613 | break; | |
614 | ||
615 | mdelay(500); | |
616 | } | |
617 | ||
618 | if ((sig & mask) != val) { | |
f10a1f2e JP |
619 | pr_info("NIU Port %u signal bits [%08x] are not [%08x] for 10G...trying 1G\n", |
620 | np->port, (int)(sig & mask), (int)val); | |
e3e081e1 SB |
621 | |
622 | /* 10G failed, try initializing at 1G */ | |
623 | err = serdes_init_niu_1g_serdes(np); | |
624 | if (!err) { | |
625 | np->flags &= ~NIU_FLAGS_10G; | |
626 | np->mac_xcvr = MAC_XCVR_PCS; | |
627 | } else { | |
f10a1f2e JP |
628 | netdev_err(np->dev, "Port %u 10G/1G SERDES Link Failed\n", |
629 | np->port); | |
e3e081e1 SB |
630 | return -ENODEV; |
631 | } | |
632 | } | |
633 | return 0; | |
634 | } | |
635 | ||
a3138df9 DM |
636 | static int esr_read_rxtx_ctrl(struct niu *np, unsigned long chan, u32 *val) |
637 | { | |
638 | int err; | |
639 | ||
640 | err = mdio_read(np, np->port, NIU_ESR_DEV_ADDR, ESR_RXTX_CTRL_L(chan)); | |
641 | if (err >= 0) { | |
642 | *val = (err & 0xffff); | |
643 | err = mdio_read(np, np->port, NIU_ESR_DEV_ADDR, | |
644 | ESR_RXTX_CTRL_H(chan)); | |
645 | if (err >= 0) | |
646 | *val |= ((err & 0xffff) << 16); | |
647 | err = 0; | |
648 | } | |
649 | return err; | |
650 | } | |
651 | ||
652 | static int esr_read_glue0(struct niu *np, unsigned long chan, u32 *val) | |
653 | { | |
654 | int err; | |
655 | ||
656 | err = mdio_read(np, np->port, NIU_ESR_DEV_ADDR, | |
657 | ESR_GLUE_CTRL0_L(chan)); | |
658 | if (err >= 0) { | |
659 | *val = (err & 0xffff); | |
660 | err = mdio_read(np, np->port, NIU_ESR_DEV_ADDR, | |
661 | ESR_GLUE_CTRL0_H(chan)); | |
662 | if (err >= 0) { | |
663 | *val |= ((err & 0xffff) << 16); | |
664 | err = 0; | |
665 | } | |
666 | } | |
667 | return err; | |
668 | } | |
669 | ||
670 | static int esr_read_reset(struct niu *np, u32 *val) | |
671 | { | |
672 | int err; | |
673 | ||
674 | err = mdio_read(np, np->port, NIU_ESR_DEV_ADDR, | |
675 | ESR_RXTX_RESET_CTRL_L); | |
676 | if (err >= 0) { | |
677 | *val = (err & 0xffff); | |
678 | err = mdio_read(np, np->port, NIU_ESR_DEV_ADDR, | |
679 | ESR_RXTX_RESET_CTRL_H); | |
680 | if (err >= 0) { | |
681 | *val |= ((err & 0xffff) << 16); | |
682 | err = 0; | |
683 | } | |
684 | } | |
685 | return err; | |
686 | } | |
687 | ||
688 | static int esr_write_rxtx_ctrl(struct niu *np, unsigned long chan, u32 val) | |
689 | { | |
690 | int err; | |
691 | ||
692 | err = mdio_write(np, np->port, NIU_ESR_DEV_ADDR, | |
693 | ESR_RXTX_CTRL_L(chan), val & 0xffff); | |
694 | if (!err) | |
695 | err = mdio_write(np, np->port, NIU_ESR_DEV_ADDR, | |
696 | ESR_RXTX_CTRL_H(chan), (val >> 16)); | |
697 | return err; | |
698 | } | |
699 | ||
700 | static int esr_write_glue0(struct niu *np, unsigned long chan, u32 val) | |
701 | { | |
702 | int err; | |
703 | ||
704 | err = mdio_write(np, np->port, NIU_ESR_DEV_ADDR, | |
705 | ESR_GLUE_CTRL0_L(chan), val & 0xffff); | |
706 | if (!err) | |
707 | err = mdio_write(np, np->port, NIU_ESR_DEV_ADDR, | |
708 | ESR_GLUE_CTRL0_H(chan), (val >> 16)); | |
709 | return err; | |
710 | } | |
711 | ||
712 | static int esr_reset(struct niu *np) | |
713 | { | |
f166400b | 714 | u32 uninitialized_var(reset); |
a3138df9 DM |
715 | int err; |
716 | ||
717 | err = mdio_write(np, np->port, NIU_ESR_DEV_ADDR, | |
718 | ESR_RXTX_RESET_CTRL_L, 0x0000); | |
719 | if (err) | |
720 | return err; | |
721 | err = mdio_write(np, np->port, NIU_ESR_DEV_ADDR, | |
722 | ESR_RXTX_RESET_CTRL_H, 0xffff); | |
723 | if (err) | |
724 | return err; | |
725 | udelay(200); | |
726 | ||
727 | err = mdio_write(np, np->port, NIU_ESR_DEV_ADDR, | |
728 | ESR_RXTX_RESET_CTRL_L, 0xffff); | |
729 | if (err) | |
730 | return err; | |
731 | udelay(200); | |
732 | ||
733 | err = mdio_write(np, np->port, NIU_ESR_DEV_ADDR, | |
734 | ESR_RXTX_RESET_CTRL_H, 0x0000); | |
735 | if (err) | |
736 | return err; | |
737 | udelay(200); | |
738 | ||
739 | err = esr_read_reset(np, &reset); | |
740 | if (err) | |
741 | return err; | |
742 | if (reset != 0) { | |
f10a1f2e JP |
743 | netdev_err(np->dev, "Port %u ESR_RESET did not clear [%08x]\n", |
744 | np->port, reset); | |
a3138df9 DM |
745 | return -ENODEV; |
746 | } | |
747 | ||
748 | return 0; | |
749 | } | |
750 | ||
751 | static int serdes_init_10g(struct niu *np) | |
752 | { | |
753 | struct niu_link_config *lp = &np->link_config; | |
754 | unsigned long ctrl_reg, test_cfg_reg, i; | |
755 | u64 ctrl_val, test_cfg_val, sig, mask, val; | |
756 | int err; | |
757 | ||
758 | switch (np->port) { | |
759 | case 0: | |
760 | ctrl_reg = ENET_SERDES_0_CTRL_CFG; | |
761 | test_cfg_reg = ENET_SERDES_0_TEST_CFG; | |
762 | break; | |
763 | case 1: | |
764 | ctrl_reg = ENET_SERDES_1_CTRL_CFG; | |
765 | test_cfg_reg = ENET_SERDES_1_TEST_CFG; | |
766 | break; | |
767 | ||
768 | default: | |
769 | return -EINVAL; | |
770 | } | |
771 | ctrl_val = (ENET_SERDES_CTRL_SDET_0 | | |
772 | ENET_SERDES_CTRL_SDET_1 | | |
773 | ENET_SERDES_CTRL_SDET_2 | | |
774 | ENET_SERDES_CTRL_SDET_3 | | |
775 | (0x5 << ENET_SERDES_CTRL_EMPH_0_SHIFT) | | |
776 | (0x5 << ENET_SERDES_CTRL_EMPH_1_SHIFT) | | |
777 | (0x5 << ENET_SERDES_CTRL_EMPH_2_SHIFT) | | |
778 | (0x5 << ENET_SERDES_CTRL_EMPH_3_SHIFT) | | |
779 | (0x1 << ENET_SERDES_CTRL_LADJ_0_SHIFT) | | |
780 | (0x1 << ENET_SERDES_CTRL_LADJ_1_SHIFT) | | |
781 | (0x1 << ENET_SERDES_CTRL_LADJ_2_SHIFT) | | |
782 | (0x1 << ENET_SERDES_CTRL_LADJ_3_SHIFT)); | |
783 | test_cfg_val = 0; | |
784 | ||
785 | if (lp->loopback_mode == LOOPBACK_PHY) { | |
786 | test_cfg_val |= ((ENET_TEST_MD_PAD_LOOPBACK << | |
787 | ENET_SERDES_TEST_MD_0_SHIFT) | | |
788 | (ENET_TEST_MD_PAD_LOOPBACK << | |
789 | ENET_SERDES_TEST_MD_1_SHIFT) | | |
790 | (ENET_TEST_MD_PAD_LOOPBACK << | |
791 | ENET_SERDES_TEST_MD_2_SHIFT) | | |
792 | (ENET_TEST_MD_PAD_LOOPBACK << | |
793 | ENET_SERDES_TEST_MD_3_SHIFT)); | |
794 | } | |
795 | ||
796 | nw64(ctrl_reg, ctrl_val); | |
797 | nw64(test_cfg_reg, test_cfg_val); | |
798 | ||
799 | /* Initialize all 4 lanes of the SERDES. */ | |
800 | for (i = 0; i < 4; i++) { | |
801 | u32 rxtx_ctrl, glue0; | |
802 | ||
803 | err = esr_read_rxtx_ctrl(np, i, &rxtx_ctrl); | |
804 | if (err) | |
805 | return err; | |
806 | err = esr_read_glue0(np, i, &glue0); | |
807 | if (err) | |
808 | return err; | |
809 | ||
810 | rxtx_ctrl &= ~(ESR_RXTX_CTRL_VMUXLO); | |
811 | rxtx_ctrl |= (ESR_RXTX_CTRL_ENSTRETCH | | |
812 | (2 << ESR_RXTX_CTRL_VMUXLO_SHIFT)); | |
813 | ||
814 | glue0 &= ~(ESR_GLUE_CTRL0_SRATE | | |
815 | ESR_GLUE_CTRL0_THCNT | | |
816 | ESR_GLUE_CTRL0_BLTIME); | |
817 | glue0 |= (ESR_GLUE_CTRL0_RXLOSENAB | | |
818 | (0xf << ESR_GLUE_CTRL0_SRATE_SHIFT) | | |
819 | (0xff << ESR_GLUE_CTRL0_THCNT_SHIFT) | | |
820 | (BLTIME_300_CYCLES << | |
821 | ESR_GLUE_CTRL0_BLTIME_SHIFT)); | |
822 | ||
823 | err = esr_write_rxtx_ctrl(np, i, rxtx_ctrl); | |
824 | if (err) | |
825 | return err; | |
826 | err = esr_write_glue0(np, i, glue0); | |
827 | if (err) | |
828 | return err; | |
829 | } | |
830 | ||
831 | err = esr_reset(np); | |
832 | if (err) | |
833 | return err; | |
834 | ||
835 | sig = nr64(ESR_INT_SIGNALS); | |
836 | switch (np->port) { | |
837 | case 0: | |
838 | mask = ESR_INT_SIGNALS_P0_BITS; | |
839 | val = (ESR_INT_SRDY0_P0 | | |
840 | ESR_INT_DET0_P0 | | |
841 | ESR_INT_XSRDY_P0 | | |
842 | ESR_INT_XDP_P0_CH3 | | |
843 | ESR_INT_XDP_P0_CH2 | | |
844 | ESR_INT_XDP_P0_CH1 | | |
845 | ESR_INT_XDP_P0_CH0); | |
846 | break; | |
847 | ||
848 | case 1: | |
849 | mask = ESR_INT_SIGNALS_P1_BITS; | |
850 | val = (ESR_INT_SRDY0_P1 | | |
851 | ESR_INT_DET0_P1 | | |
852 | ESR_INT_XSRDY_P1 | | |
853 | ESR_INT_XDP_P1_CH3 | | |
854 | ESR_INT_XDP_P1_CH2 | | |
855 | ESR_INT_XDP_P1_CH1 | | |
856 | ESR_INT_XDP_P1_CH0); | |
857 | break; | |
858 | ||
859 | default: | |
860 | return -EINVAL; | |
861 | } | |
862 | ||
863 | if ((sig & mask) != val) { | |
a5d6ab56 MW |
864 | if (np->flags & NIU_FLAGS_HOTPLUG_PHY) { |
865 | np->flags &= ~NIU_FLAGS_HOTPLUG_PHY_PRESENT; | |
866 | return 0; | |
867 | } | |
f10a1f2e JP |
868 | netdev_err(np->dev, "Port %u signal bits [%08x] are not [%08x]\n", |
869 | np->port, (int)(sig & mask), (int)val); | |
a3138df9 DM |
870 | return -ENODEV; |
871 | } | |
a5d6ab56 MW |
872 | if (np->flags & NIU_FLAGS_HOTPLUG_PHY) |
873 | np->flags |= NIU_FLAGS_HOTPLUG_PHY_PRESENT; | |
a3138df9 DM |
874 | return 0; |
875 | } | |
876 | ||
877 | static int serdes_init_1g(struct niu *np) | |
878 | { | |
879 | u64 val; | |
880 | ||
881 | val = nr64(ENET_SERDES_1_PLL_CFG); | |
882 | val &= ~ENET_SERDES_PLL_FBDIV2; | |
883 | switch (np->port) { | |
884 | case 0: | |
885 | val |= ENET_SERDES_PLL_HRATE0; | |
886 | break; | |
887 | case 1: | |
888 | val |= ENET_SERDES_PLL_HRATE1; | |
889 | break; | |
890 | case 2: | |
891 | val |= ENET_SERDES_PLL_HRATE2; | |
892 | break; | |
893 | case 3: | |
894 | val |= ENET_SERDES_PLL_HRATE3; | |
895 | break; | |
896 | default: | |
897 | return -EINVAL; | |
898 | } | |
899 | nw64(ENET_SERDES_1_PLL_CFG, val); | |
900 | ||
901 | return 0; | |
902 | } | |
903 | ||
5fbd7e24 MW |
904 | static int serdes_init_1g_serdes(struct niu *np) |
905 | { | |
906 | struct niu_link_config *lp = &np->link_config; | |
907 | unsigned long ctrl_reg, test_cfg_reg, pll_cfg, i; | |
908 | u64 ctrl_val, test_cfg_val, sig, mask, val; | |
909 | int err; | |
910 | u64 reset_val, val_rd; | |
911 | ||
912 | val = ENET_SERDES_PLL_HRATE0 | ENET_SERDES_PLL_HRATE1 | | |
913 | ENET_SERDES_PLL_HRATE2 | ENET_SERDES_PLL_HRATE3 | | |
914 | ENET_SERDES_PLL_FBDIV0; | |
915 | switch (np->port) { | |
916 | case 0: | |
917 | reset_val = ENET_SERDES_RESET_0; | |
918 | ctrl_reg = ENET_SERDES_0_CTRL_CFG; | |
919 | test_cfg_reg = ENET_SERDES_0_TEST_CFG; | |
920 | pll_cfg = ENET_SERDES_0_PLL_CFG; | |
921 | break; | |
922 | case 1: | |
923 | reset_val = ENET_SERDES_RESET_1; | |
924 | ctrl_reg = ENET_SERDES_1_CTRL_CFG; | |
925 | test_cfg_reg = ENET_SERDES_1_TEST_CFG; | |
926 | pll_cfg = ENET_SERDES_1_PLL_CFG; | |
927 | break; | |
928 | ||
929 | default: | |
930 | return -EINVAL; | |
931 | } | |
932 | ctrl_val = (ENET_SERDES_CTRL_SDET_0 | | |
933 | ENET_SERDES_CTRL_SDET_1 | | |
934 | ENET_SERDES_CTRL_SDET_2 | | |
935 | ENET_SERDES_CTRL_SDET_3 | | |
936 | (0x5 << ENET_SERDES_CTRL_EMPH_0_SHIFT) | | |
937 | (0x5 << ENET_SERDES_CTRL_EMPH_1_SHIFT) | | |
938 | (0x5 << ENET_SERDES_CTRL_EMPH_2_SHIFT) | | |
939 | (0x5 << ENET_SERDES_CTRL_EMPH_3_SHIFT) | | |
940 | (0x1 << ENET_SERDES_CTRL_LADJ_0_SHIFT) | | |
941 | (0x1 << ENET_SERDES_CTRL_LADJ_1_SHIFT) | | |
942 | (0x1 << ENET_SERDES_CTRL_LADJ_2_SHIFT) | | |
943 | (0x1 << ENET_SERDES_CTRL_LADJ_3_SHIFT)); | |
944 | test_cfg_val = 0; | |
945 | ||
946 | if (lp->loopback_mode == LOOPBACK_PHY) { | |
947 | test_cfg_val |= ((ENET_TEST_MD_PAD_LOOPBACK << | |
948 | ENET_SERDES_TEST_MD_0_SHIFT) | | |
949 | (ENET_TEST_MD_PAD_LOOPBACK << | |
950 | ENET_SERDES_TEST_MD_1_SHIFT) | | |
951 | (ENET_TEST_MD_PAD_LOOPBACK << | |
952 | ENET_SERDES_TEST_MD_2_SHIFT) | | |
953 | (ENET_TEST_MD_PAD_LOOPBACK << | |
954 | ENET_SERDES_TEST_MD_3_SHIFT)); | |
955 | } | |
956 | ||
957 | nw64(ENET_SERDES_RESET, reset_val); | |
958 | mdelay(20); | |
959 | val_rd = nr64(ENET_SERDES_RESET); | |
960 | val_rd &= ~reset_val; | |
961 | nw64(pll_cfg, val); | |
962 | nw64(ctrl_reg, ctrl_val); | |
963 | nw64(test_cfg_reg, test_cfg_val); | |
964 | nw64(ENET_SERDES_RESET, val_rd); | |
965 | mdelay(2000); | |
966 | ||
967 | /* Initialize all 4 lanes of the SERDES. */ | |
968 | for (i = 0; i < 4; i++) { | |
969 | u32 rxtx_ctrl, glue0; | |
970 | ||
971 | err = esr_read_rxtx_ctrl(np, i, &rxtx_ctrl); | |
972 | if (err) | |
973 | return err; | |
974 | err = esr_read_glue0(np, i, &glue0); | |
975 | if (err) | |
976 | return err; | |
977 | ||
978 | rxtx_ctrl &= ~(ESR_RXTX_CTRL_VMUXLO); | |
979 | rxtx_ctrl |= (ESR_RXTX_CTRL_ENSTRETCH | | |
980 | (2 << ESR_RXTX_CTRL_VMUXLO_SHIFT)); | |
981 | ||
982 | glue0 &= ~(ESR_GLUE_CTRL0_SRATE | | |
983 | ESR_GLUE_CTRL0_THCNT | | |
984 | ESR_GLUE_CTRL0_BLTIME); | |
985 | glue0 |= (ESR_GLUE_CTRL0_RXLOSENAB | | |
986 | (0xf << ESR_GLUE_CTRL0_SRATE_SHIFT) | | |
987 | (0xff << ESR_GLUE_CTRL0_THCNT_SHIFT) | | |
988 | (BLTIME_300_CYCLES << | |
989 | ESR_GLUE_CTRL0_BLTIME_SHIFT)); | |
990 | ||
991 | err = esr_write_rxtx_ctrl(np, i, rxtx_ctrl); | |
992 | if (err) | |
993 | return err; | |
994 | err = esr_write_glue0(np, i, glue0); | |
995 | if (err) | |
996 | return err; | |
997 | } | |
998 | ||
999 | ||
1000 | sig = nr64(ESR_INT_SIGNALS); | |
1001 | switch (np->port) { | |
1002 | case 0: | |
1003 | val = (ESR_INT_SRDY0_P0 | ESR_INT_DET0_P0); | |
1004 | mask = val; | |
1005 | break; | |
1006 | ||
1007 | case 1: | |
1008 | val = (ESR_INT_SRDY0_P1 | ESR_INT_DET0_P1); | |
1009 | mask = val; | |
1010 | break; | |
1011 | ||
1012 | default: | |
1013 | return -EINVAL; | |
1014 | } | |
1015 | ||
1016 | if ((sig & mask) != val) { | |
f10a1f2e JP |
1017 | netdev_err(np->dev, "Port %u signal bits [%08x] are not [%08x]\n", |
1018 | np->port, (int)(sig & mask), (int)val); | |
5fbd7e24 MW |
1019 | return -ENODEV; |
1020 | } | |
1021 | ||
1022 | return 0; | |
1023 | } | |
1024 | ||
1025 | static int link_status_1g_serdes(struct niu *np, int *link_up_p) | |
1026 | { | |
1027 | struct niu_link_config *lp = &np->link_config; | |
1028 | int link_up; | |
1029 | u64 val; | |
1030 | u16 current_speed; | |
1031 | unsigned long flags; | |
1032 | u8 current_duplex; | |
1033 | ||
1034 | link_up = 0; | |
1035 | current_speed = SPEED_INVALID; | |
1036 | current_duplex = DUPLEX_INVALID; | |
1037 | ||
1038 | spin_lock_irqsave(&np->lock, flags); | |
1039 | ||
1040 | val = nr64_pcs(PCS_MII_STAT); | |
1041 | ||
1042 | if (val & PCS_MII_STAT_LINK_STATUS) { | |
1043 | link_up = 1; | |
1044 | current_speed = SPEED_1000; | |
1045 | current_duplex = DUPLEX_FULL; | |
1046 | } | |
1047 | ||
1048 | lp->active_speed = current_speed; | |
1049 | lp->active_duplex = current_duplex; | |
1050 | spin_unlock_irqrestore(&np->lock, flags); | |
1051 | ||
1052 | *link_up_p = link_up; | |
1053 | return 0; | |
1054 | } | |
1055 | ||
5fbd7e24 MW |
1056 | static int link_status_10g_serdes(struct niu *np, int *link_up_p) |
1057 | { | |
1058 | unsigned long flags; | |
1059 | struct niu_link_config *lp = &np->link_config; | |
1060 | int link_up = 0; | |
1061 | int link_ok = 1; | |
1062 | u64 val, val2; | |
1063 | u16 current_speed; | |
1064 | u8 current_duplex; | |
1065 | ||
1066 | if (!(np->flags & NIU_FLAGS_10G)) | |
1067 | return link_status_1g_serdes(np, link_up_p); | |
1068 | ||
1069 | current_speed = SPEED_INVALID; | |
1070 | current_duplex = DUPLEX_INVALID; | |
1071 | spin_lock_irqsave(&np->lock, flags); | |
1072 | ||
1073 | val = nr64_xpcs(XPCS_STATUS(0)); | |
1074 | val2 = nr64_mac(XMAC_INTER2); | |
1075 | if (val2 & 0x01000000) | |
1076 | link_ok = 0; | |
1077 | ||
1078 | if ((val & 0x1000ULL) && link_ok) { | |
1079 | link_up = 1; | |
1080 | current_speed = SPEED_10000; | |
1081 | current_duplex = DUPLEX_FULL; | |
1082 | } | |
1083 | lp->active_speed = current_speed; | |
1084 | lp->active_duplex = current_duplex; | |
1085 | spin_unlock_irqrestore(&np->lock, flags); | |
1086 | *link_up_p = link_up; | |
1087 | return 0; | |
1088 | } | |
1089 | ||
38bb045d CB |
1090 | static int link_status_mii(struct niu *np, int *link_up_p) |
1091 | { | |
1092 | struct niu_link_config *lp = &np->link_config; | |
1093 | int err; | |
1094 | int bmsr, advert, ctrl1000, stat1000, lpa, bmcr, estatus; | |
1095 | int supported, advertising, active_speed, active_duplex; | |
1096 | ||
1097 | err = mii_read(np, np->phy_addr, MII_BMCR); | |
1098 | if (unlikely(err < 0)) | |
1099 | return err; | |
1100 | bmcr = err; | |
1101 | ||
1102 | err = mii_read(np, np->phy_addr, MII_BMSR); | |
1103 | if (unlikely(err < 0)) | |
1104 | return err; | |
1105 | bmsr = err; | |
1106 | ||
1107 | err = mii_read(np, np->phy_addr, MII_ADVERTISE); | |
1108 | if (unlikely(err < 0)) | |
1109 | return err; | |
1110 | advert = err; | |
1111 | ||
1112 | err = mii_read(np, np->phy_addr, MII_LPA); | |
1113 | if (unlikely(err < 0)) | |
1114 | return err; | |
1115 | lpa = err; | |
1116 | ||
1117 | if (likely(bmsr & BMSR_ESTATEN)) { | |
1118 | err = mii_read(np, np->phy_addr, MII_ESTATUS); | |
1119 | if (unlikely(err < 0)) | |
1120 | return err; | |
1121 | estatus = err; | |
1122 | ||
1123 | err = mii_read(np, np->phy_addr, MII_CTRL1000); | |
1124 | if (unlikely(err < 0)) | |
1125 | return err; | |
1126 | ctrl1000 = err; | |
1127 | ||
1128 | err = mii_read(np, np->phy_addr, MII_STAT1000); | |
1129 | if (unlikely(err < 0)) | |
1130 | return err; | |
1131 | stat1000 = err; | |
1132 | } else | |
1133 | estatus = ctrl1000 = stat1000 = 0; | |
1134 | ||
1135 | supported = 0; | |
1136 | if (bmsr & BMSR_ANEGCAPABLE) | |
1137 | supported |= SUPPORTED_Autoneg; | |
1138 | if (bmsr & BMSR_10HALF) | |
1139 | supported |= SUPPORTED_10baseT_Half; | |
1140 | if (bmsr & BMSR_10FULL) | |
1141 | supported |= SUPPORTED_10baseT_Full; | |
1142 | if (bmsr & BMSR_100HALF) | |
1143 | supported |= SUPPORTED_100baseT_Half; | |
1144 | if (bmsr & BMSR_100FULL) | |
1145 | supported |= SUPPORTED_100baseT_Full; | |
1146 | if (estatus & ESTATUS_1000_THALF) | |
1147 | supported |= SUPPORTED_1000baseT_Half; | |
1148 | if (estatus & ESTATUS_1000_TFULL) | |
1149 | supported |= SUPPORTED_1000baseT_Full; | |
1150 | lp->supported = supported; | |
1151 | ||
1152 | advertising = 0; | |
1153 | if (advert & ADVERTISE_10HALF) | |
1154 | advertising |= ADVERTISED_10baseT_Half; | |
1155 | if (advert & ADVERTISE_10FULL) | |
1156 | advertising |= ADVERTISED_10baseT_Full; | |
1157 | if (advert & ADVERTISE_100HALF) | |
1158 | advertising |= ADVERTISED_100baseT_Half; | |
1159 | if (advert & ADVERTISE_100FULL) | |
1160 | advertising |= ADVERTISED_100baseT_Full; | |
1161 | if (ctrl1000 & ADVERTISE_1000HALF) | |
1162 | advertising |= ADVERTISED_1000baseT_Half; | |
1163 | if (ctrl1000 & ADVERTISE_1000FULL) | |
1164 | advertising |= ADVERTISED_1000baseT_Full; | |
1165 | ||
1166 | if (bmcr & BMCR_ANENABLE) { | |
1167 | int neg, neg1000; | |
1168 | ||
1169 | lp->active_autoneg = 1; | |
1170 | advertising |= ADVERTISED_Autoneg; | |
1171 | ||
1172 | neg = advert & lpa; | |
1173 | neg1000 = (ctrl1000 << 2) & stat1000; | |
1174 | ||
1175 | if (neg1000 & (LPA_1000FULL | LPA_1000HALF)) | |
1176 | active_speed = SPEED_1000; | |
1177 | else if (neg & LPA_100) | |
1178 | active_speed = SPEED_100; | |
1179 | else if (neg & (LPA_10HALF | LPA_10FULL)) | |
1180 | active_speed = SPEED_10; | |
1181 | else | |
1182 | active_speed = SPEED_INVALID; | |
1183 | ||
1184 | if ((neg1000 & LPA_1000FULL) || (neg & LPA_DUPLEX)) | |
1185 | active_duplex = DUPLEX_FULL; | |
1186 | else if (active_speed != SPEED_INVALID) | |
1187 | active_duplex = DUPLEX_HALF; | |
1188 | else | |
1189 | active_duplex = DUPLEX_INVALID; | |
1190 | } else { | |
1191 | lp->active_autoneg = 0; | |
1192 | ||
1193 | if ((bmcr & BMCR_SPEED1000) && !(bmcr & BMCR_SPEED100)) | |
1194 | active_speed = SPEED_1000; | |
1195 | else if (bmcr & BMCR_SPEED100) | |
1196 | active_speed = SPEED_100; | |
1197 | else | |
1198 | active_speed = SPEED_10; | |
1199 | ||
1200 | if (bmcr & BMCR_FULLDPLX) | |
1201 | active_duplex = DUPLEX_FULL; | |
1202 | else | |
1203 | active_duplex = DUPLEX_HALF; | |
1204 | } | |
1205 | ||
1206 | lp->active_advertising = advertising; | |
1207 | lp->active_speed = active_speed; | |
1208 | lp->active_duplex = active_duplex; | |
1209 | *link_up_p = !!(bmsr & BMSR_LSTATUS); | |
1210 | ||
1211 | return 0; | |
1212 | } | |
1213 | ||
5fbd7e24 MW |
1214 | static int link_status_1g_rgmii(struct niu *np, int *link_up_p) |
1215 | { | |
1216 | struct niu_link_config *lp = &np->link_config; | |
1217 | u16 current_speed, bmsr; | |
1218 | unsigned long flags; | |
1219 | u8 current_duplex; | |
1220 | int err, link_up; | |
1221 | ||
1222 | link_up = 0; | |
1223 | current_speed = SPEED_INVALID; | |
1224 | current_duplex = DUPLEX_INVALID; | |
1225 | ||
1226 | spin_lock_irqsave(&np->lock, flags); | |
1227 | ||
1228 | err = -EINVAL; | |
1229 | ||
1230 | err = mii_read(np, np->phy_addr, MII_BMSR); | |
1231 | if (err < 0) | |
1232 | goto out; | |
1233 | ||
1234 | bmsr = err; | |
1235 | if (bmsr & BMSR_LSTATUS) { | |
1236 | u16 adv, lpa, common, estat; | |
1237 | ||
1238 | err = mii_read(np, np->phy_addr, MII_ADVERTISE); | |
1239 | if (err < 0) | |
1240 | goto out; | |
1241 | adv = err; | |
1242 | ||
1243 | err = mii_read(np, np->phy_addr, MII_LPA); | |
1244 | if (err < 0) | |
1245 | goto out; | |
1246 | lpa = err; | |
1247 | ||
1248 | common = adv & lpa; | |
1249 | ||
1250 | err = mii_read(np, np->phy_addr, MII_ESTATUS); | |
1251 | if (err < 0) | |
1252 | goto out; | |
1253 | estat = err; | |
1254 | link_up = 1; | |
1255 | current_speed = SPEED_1000; | |
1256 | current_duplex = DUPLEX_FULL; | |
1257 | ||
1258 | } | |
1259 | lp->active_speed = current_speed; | |
1260 | lp->active_duplex = current_duplex; | |
1261 | err = 0; | |
1262 | ||
1263 | out: | |
1264 | spin_unlock_irqrestore(&np->lock, flags); | |
1265 | ||
1266 | *link_up_p = link_up; | |
1267 | return err; | |
1268 | } | |
1269 | ||
38bb045d CB |
1270 | static int link_status_1g(struct niu *np, int *link_up_p) |
1271 | { | |
1272 | struct niu_link_config *lp = &np->link_config; | |
1273 | unsigned long flags; | |
1274 | int err; | |
1275 | ||
1276 | spin_lock_irqsave(&np->lock, flags); | |
1277 | ||
1278 | err = link_status_mii(np, link_up_p); | |
1279 | lp->supported |= SUPPORTED_TP; | |
1280 | lp->active_advertising |= ADVERTISED_TP; | |
1281 | ||
1282 | spin_unlock_irqrestore(&np->lock, flags); | |
1283 | return err; | |
1284 | } | |
1285 | ||
a3138df9 DM |
1286 | static int bcm8704_reset(struct niu *np) |
1287 | { | |
1288 | int err, limit; | |
1289 | ||
1290 | err = mdio_read(np, np->phy_addr, | |
1291 | BCM8704_PHYXS_DEV_ADDR, MII_BMCR); | |
9c5cd670 | 1292 | if (err < 0 || err == 0xffff) |
a3138df9 DM |
1293 | return err; |
1294 | err |= BMCR_RESET; | |
1295 | err = mdio_write(np, np->phy_addr, BCM8704_PHYXS_DEV_ADDR, | |
1296 | MII_BMCR, err); | |
1297 | if (err) | |
1298 | return err; | |
1299 | ||
1300 | limit = 1000; | |
1301 | while (--limit >= 0) { | |
1302 | err = mdio_read(np, np->phy_addr, | |
1303 | BCM8704_PHYXS_DEV_ADDR, MII_BMCR); | |
1304 | if (err < 0) | |
1305 | return err; | |
1306 | if (!(err & BMCR_RESET)) | |
1307 | break; | |
1308 | } | |
1309 | if (limit < 0) { | |
f10a1f2e JP |
1310 | netdev_err(np->dev, "Port %u PHY will not reset (bmcr=%04x)\n", |
1311 | np->port, (err & 0xffff)); | |
a3138df9 DM |
1312 | return -ENODEV; |
1313 | } | |
1314 | return 0; | |
1315 | } | |
1316 | ||
1317 | /* When written, certain PHY registers need to be read back twice | |
1318 | * in order for the bits to settle properly. | |
1319 | */ | |
1320 | static int bcm8704_user_dev3_readback(struct niu *np, int reg) | |
1321 | { | |
1322 | int err = mdio_read(np, np->phy_addr, BCM8704_USER_DEV3_ADDR, reg); | |
1323 | if (err < 0) | |
1324 | return err; | |
1325 | err = mdio_read(np, np->phy_addr, BCM8704_USER_DEV3_ADDR, reg); | |
1326 | if (err < 0) | |
1327 | return err; | |
1328 | return 0; | |
1329 | } | |
1330 | ||
a5d6ab56 MW |
1331 | static int bcm8706_init_user_dev3(struct niu *np) |
1332 | { | |
1333 | int err; | |
1334 | ||
1335 | ||
1336 | err = mdio_read(np, np->phy_addr, BCM8704_USER_DEV3_ADDR, | |
1337 | BCM8704_USER_OPT_DIGITAL_CTRL); | |
1338 | if (err < 0) | |
1339 | return err; | |
1340 | err &= ~USER_ODIG_CTRL_GPIOS; | |
1341 | err |= (0x3 << USER_ODIG_CTRL_GPIOS_SHIFT); | |
1342 | err |= USER_ODIG_CTRL_RESV2; | |
1343 | err = mdio_write(np, np->phy_addr, BCM8704_USER_DEV3_ADDR, | |
1344 | BCM8704_USER_OPT_DIGITAL_CTRL, err); | |
1345 | if (err) | |
1346 | return err; | |
1347 | ||
1348 | mdelay(1000); | |
1349 | ||
1350 | return 0; | |
1351 | } | |
1352 | ||
a3138df9 DM |
1353 | static int bcm8704_init_user_dev3(struct niu *np) |
1354 | { | |
1355 | int err; | |
1356 | ||
1357 | err = mdio_write(np, np->phy_addr, | |
1358 | BCM8704_USER_DEV3_ADDR, BCM8704_USER_CONTROL, | |
1359 | (USER_CONTROL_OPTXRST_LVL | | |
1360 | USER_CONTROL_OPBIASFLT_LVL | | |
1361 | USER_CONTROL_OBTMPFLT_LVL | | |
1362 | USER_CONTROL_OPPRFLT_LVL | | |
1363 | USER_CONTROL_OPTXFLT_LVL | | |
1364 | USER_CONTROL_OPRXLOS_LVL | | |
1365 | USER_CONTROL_OPRXFLT_LVL | | |
1366 | USER_CONTROL_OPTXON_LVL | | |
1367 | (0x3f << USER_CONTROL_RES1_SHIFT))); | |
1368 | if (err) | |
1369 | return err; | |
1370 | ||
1371 | err = mdio_write(np, np->phy_addr, | |
1372 | BCM8704_USER_DEV3_ADDR, BCM8704_USER_PMD_TX_CONTROL, | |
1373 | (USER_PMD_TX_CTL_XFP_CLKEN | | |
1374 | (1 << USER_PMD_TX_CTL_TX_DAC_TXD_SH) | | |
1375 | (2 << USER_PMD_TX_CTL_TX_DAC_TXCK_SH) | | |
1376 | USER_PMD_TX_CTL_TSCK_LPWREN)); | |
1377 | if (err) | |
1378 | return err; | |
1379 | ||
1380 | err = bcm8704_user_dev3_readback(np, BCM8704_USER_CONTROL); | |
1381 | if (err) | |
1382 | return err; | |
1383 | err = bcm8704_user_dev3_readback(np, BCM8704_USER_PMD_TX_CONTROL); | |
1384 | if (err) | |
1385 | return err; | |
1386 | ||
1387 | err = mdio_read(np, np->phy_addr, BCM8704_USER_DEV3_ADDR, | |
1388 | BCM8704_USER_OPT_DIGITAL_CTRL); | |
1389 | if (err < 0) | |
1390 | return err; | |
1391 | err &= ~USER_ODIG_CTRL_GPIOS; | |
1392 | err |= (0x3 << USER_ODIG_CTRL_GPIOS_SHIFT); | |
1393 | err = mdio_write(np, np->phy_addr, BCM8704_USER_DEV3_ADDR, | |
1394 | BCM8704_USER_OPT_DIGITAL_CTRL, err); | |
1395 | if (err) | |
1396 | return err; | |
1397 | ||
1398 | mdelay(1000); | |
1399 | ||
1400 | return 0; | |
1401 | } | |
1402 | ||
b0de8e40 ML |
1403 | static int mrvl88x2011_act_led(struct niu *np, int val) |
1404 | { | |
1405 | int err; | |
1406 | ||
1407 | err = mdio_read(np, np->phy_addr, MRVL88X2011_USER_DEV2_ADDR, | |
1408 | MRVL88X2011_LED_8_TO_11_CTL); | |
1409 | if (err < 0) | |
1410 | return err; | |
1411 | ||
1412 | err &= ~MRVL88X2011_LED(MRVL88X2011_LED_ACT,MRVL88X2011_LED_CTL_MASK); | |
1413 | err |= MRVL88X2011_LED(MRVL88X2011_LED_ACT,val); | |
1414 | ||
1415 | return mdio_write(np, np->phy_addr, MRVL88X2011_USER_DEV2_ADDR, | |
1416 | MRVL88X2011_LED_8_TO_11_CTL, err); | |
1417 | } | |
1418 | ||
1419 | static int mrvl88x2011_led_blink_rate(struct niu *np, int rate) | |
1420 | { | |
1421 | int err; | |
1422 | ||
1423 | err = mdio_read(np, np->phy_addr, MRVL88X2011_USER_DEV2_ADDR, | |
1424 | MRVL88X2011_LED_BLINK_CTL); | |
1425 | if (err >= 0) { | |
1426 | err &= ~MRVL88X2011_LED_BLKRATE_MASK; | |
1427 | err |= (rate << 4); | |
1428 | ||
1429 | err = mdio_write(np, np->phy_addr, MRVL88X2011_USER_DEV2_ADDR, | |
1430 | MRVL88X2011_LED_BLINK_CTL, err); | |
1431 | } | |
1432 | ||
1433 | return err; | |
1434 | } | |
1435 | ||
1436 | static int xcvr_init_10g_mrvl88x2011(struct niu *np) | |
1437 | { | |
1438 | int err; | |
1439 | ||
1440 | /* Set LED functions */ | |
1441 | err = mrvl88x2011_led_blink_rate(np, MRVL88X2011_LED_BLKRATE_134MS); | |
1442 | if (err) | |
1443 | return err; | |
1444 | ||
1445 | /* led activity */ | |
1446 | err = mrvl88x2011_act_led(np, MRVL88X2011_LED_CTL_OFF); | |
1447 | if (err) | |
1448 | return err; | |
1449 | ||
1450 | err = mdio_read(np, np->phy_addr, MRVL88X2011_USER_DEV3_ADDR, | |
1451 | MRVL88X2011_GENERAL_CTL); | |
1452 | if (err < 0) | |
1453 | return err; | |
1454 | ||
1455 | err |= MRVL88X2011_ENA_XFPREFCLK; | |
1456 | ||
1457 | err = mdio_write(np, np->phy_addr, MRVL88X2011_USER_DEV3_ADDR, | |
1458 | MRVL88X2011_GENERAL_CTL, err); | |
1459 | if (err < 0) | |
1460 | return err; | |
1461 | ||
1462 | err = mdio_read(np, np->phy_addr, MRVL88X2011_USER_DEV1_ADDR, | |
1463 | MRVL88X2011_PMA_PMD_CTL_1); | |
1464 | if (err < 0) | |
1465 | return err; | |
1466 | ||
1467 | if (np->link_config.loopback_mode == LOOPBACK_MAC) | |
1468 | err |= MRVL88X2011_LOOPBACK; | |
1469 | else | |
1470 | err &= ~MRVL88X2011_LOOPBACK; | |
1471 | ||
1472 | err = mdio_write(np, np->phy_addr, MRVL88X2011_USER_DEV1_ADDR, | |
1473 | MRVL88X2011_PMA_PMD_CTL_1, err); | |
1474 | if (err < 0) | |
1475 | return err; | |
1476 | ||
1477 | /* Enable PMD */ | |
1478 | return mdio_write(np, np->phy_addr, MRVL88X2011_USER_DEV1_ADDR, | |
1479 | MRVL88X2011_10G_PMD_TX_DIS, MRVL88X2011_ENA_PMDTX); | |
1480 | } | |
1481 | ||
a5d6ab56 MW |
1482 | |
1483 | static int xcvr_diag_bcm870x(struct niu *np) | |
a3138df9 | 1484 | { |
a3138df9 | 1485 | u16 analog_stat0, tx_alarm_status; |
a5d6ab56 | 1486 | int err = 0; |
a3138df9 DM |
1487 | |
1488 | #if 1 | |
1489 | err = mdio_read(np, np->phy_addr, BCM8704_PMA_PMD_DEV_ADDR, | |
1490 | MII_STAT1000); | |
1491 | if (err < 0) | |
1492 | return err; | |
f10a1f2e | 1493 | pr_info("Port %u PMA_PMD(MII_STAT1000) [%04x]\n", np->port, err); |
a3138df9 DM |
1494 | |
1495 | err = mdio_read(np, np->phy_addr, BCM8704_USER_DEV3_ADDR, 0x20); | |
1496 | if (err < 0) | |
1497 | return err; | |
f10a1f2e | 1498 | pr_info("Port %u USER_DEV3(0x20) [%04x]\n", np->port, err); |
a3138df9 DM |
1499 | |
1500 | err = mdio_read(np, np->phy_addr, BCM8704_PHYXS_DEV_ADDR, | |
1501 | MII_NWAYTEST); | |
1502 | if (err < 0) | |
1503 | return err; | |
f10a1f2e | 1504 | pr_info("Port %u PHYXS(MII_NWAYTEST) [%04x]\n", np->port, err); |
a3138df9 DM |
1505 | #endif |
1506 | ||
1507 | /* XXX dig this out it might not be so useful XXX */ | |
1508 | err = mdio_read(np, np->phy_addr, BCM8704_USER_DEV3_ADDR, | |
1509 | BCM8704_USER_ANALOG_STATUS0); | |
1510 | if (err < 0) | |
1511 | return err; | |
1512 | err = mdio_read(np, np->phy_addr, BCM8704_USER_DEV3_ADDR, | |
1513 | BCM8704_USER_ANALOG_STATUS0); | |
1514 | if (err < 0) | |
1515 | return err; | |
1516 | analog_stat0 = err; | |
1517 | ||
1518 | err = mdio_read(np, np->phy_addr, BCM8704_USER_DEV3_ADDR, | |
1519 | BCM8704_USER_TX_ALARM_STATUS); | |
1520 | if (err < 0) | |
1521 | return err; | |
1522 | err = mdio_read(np, np->phy_addr, BCM8704_USER_DEV3_ADDR, | |
1523 | BCM8704_USER_TX_ALARM_STATUS); | |
1524 | if (err < 0) | |
1525 | return err; | |
1526 | tx_alarm_status = err; | |
1527 | ||
1528 | if (analog_stat0 != 0x03fc) { | |
1529 | if ((analog_stat0 == 0x43bc) && (tx_alarm_status != 0)) { | |
f10a1f2e JP |
1530 | pr_info("Port %u cable not connected or bad cable\n", |
1531 | np->port); | |
a3138df9 | 1532 | } else if (analog_stat0 == 0x639c) { |
f10a1f2e JP |
1533 | pr_info("Port %u optical module is bad or missing\n", |
1534 | np->port); | |
a3138df9 DM |
1535 | } |
1536 | } | |
1537 | ||
1538 | return 0; | |
1539 | } | |
1540 | ||
a5d6ab56 MW |
1541 | static int xcvr_10g_set_lb_bcm870x(struct niu *np) |
1542 | { | |
1543 | struct niu_link_config *lp = &np->link_config; | |
1544 | int err; | |
1545 | ||
1546 | err = mdio_read(np, np->phy_addr, BCM8704_PCS_DEV_ADDR, | |
1547 | MII_BMCR); | |
1548 | if (err < 0) | |
1549 | return err; | |
1550 | ||
1551 | err &= ~BMCR_LOOPBACK; | |
1552 | ||
1553 | if (lp->loopback_mode == LOOPBACK_MAC) | |
1554 | err |= BMCR_LOOPBACK; | |
1555 | ||
1556 | err = mdio_write(np, np->phy_addr, BCM8704_PCS_DEV_ADDR, | |
1557 | MII_BMCR, err); | |
1558 | if (err) | |
1559 | return err; | |
1560 | ||
1561 | return 0; | |
1562 | } | |
1563 | ||
1564 | static int xcvr_init_10g_bcm8706(struct niu *np) | |
1565 | { | |
1566 | int err = 0; | |
1567 | u64 val; | |
1568 | ||
1569 | if ((np->flags & NIU_FLAGS_HOTPLUG_PHY) && | |
1570 | (np->flags & NIU_FLAGS_HOTPLUG_PHY_PRESENT) == 0) | |
1571 | return err; | |
1572 | ||
1573 | val = nr64_mac(XMAC_CONFIG); | |
1574 | val &= ~XMAC_CONFIG_LED_POLARITY; | |
1575 | val |= XMAC_CONFIG_FORCE_LED_ON; | |
1576 | nw64_mac(XMAC_CONFIG, val); | |
1577 | ||
1578 | val = nr64(MIF_CONFIG); | |
1579 | val |= MIF_CONFIG_INDIRECT_MODE; | |
1580 | nw64(MIF_CONFIG, val); | |
1581 | ||
1582 | err = bcm8704_reset(np); | |
1583 | if (err) | |
1584 | return err; | |
1585 | ||
1586 | err = xcvr_10g_set_lb_bcm870x(np); | |
1587 | if (err) | |
1588 | return err; | |
1589 | ||
1590 | err = bcm8706_init_user_dev3(np); | |
1591 | if (err) | |
1592 | return err; | |
1593 | ||
1594 | err = xcvr_diag_bcm870x(np); | |
1595 | if (err) | |
1596 | return err; | |
1597 | ||
1598 | return 0; | |
1599 | } | |
1600 | ||
1601 | static int xcvr_init_10g_bcm8704(struct niu *np) | |
1602 | { | |
1603 | int err; | |
1604 | ||
1605 | err = bcm8704_reset(np); | |
1606 | if (err) | |
1607 | return err; | |
1608 | ||
1609 | err = bcm8704_init_user_dev3(np); | |
1610 | if (err) | |
1611 | return err; | |
1612 | ||
1613 | err = xcvr_10g_set_lb_bcm870x(np); | |
1614 | if (err) | |
1615 | return err; | |
1616 | ||
1617 | err = xcvr_diag_bcm870x(np); | |
1618 | if (err) | |
1619 | return err; | |
1620 | ||
1621 | return 0; | |
1622 | } | |
1623 | ||
b0de8e40 ML |
1624 | static int xcvr_init_10g(struct niu *np) |
1625 | { | |
1626 | int phy_id, err; | |
1627 | u64 val; | |
1628 | ||
1629 | val = nr64_mac(XMAC_CONFIG); | |
1630 | val &= ~XMAC_CONFIG_LED_POLARITY; | |
1631 | val |= XMAC_CONFIG_FORCE_LED_ON; | |
1632 | nw64_mac(XMAC_CONFIG, val); | |
1633 | ||
1634 | /* XXX shared resource, lock parent XXX */ | |
1635 | val = nr64(MIF_CONFIG); | |
1636 | val |= MIF_CONFIG_INDIRECT_MODE; | |
1637 | nw64(MIF_CONFIG, val); | |
1638 | ||
1639 | phy_id = phy_decode(np->parent->port_phy, np->port); | |
1640 | phy_id = np->parent->phy_probe_info.phy_id[phy_id][np->port]; | |
1641 | ||
1642 | /* handle different phy types */ | |
1643 | switch (phy_id & NIU_PHY_ID_MASK) { | |
1644 | case NIU_PHY_ID_MRVL88X2011: | |
1645 | err = xcvr_init_10g_mrvl88x2011(np); | |
1646 | break; | |
1647 | ||
1648 | default: /* bcom 8704 */ | |
1649 | err = xcvr_init_10g_bcm8704(np); | |
1650 | break; | |
1651 | } | |
1652 | ||
1653 | return 0; | |
1654 | } | |
1655 | ||
a3138df9 DM |
1656 | static int mii_reset(struct niu *np) |
1657 | { | |
1658 | int limit, err; | |
1659 | ||
1660 | err = mii_write(np, np->phy_addr, MII_BMCR, BMCR_RESET); | |
1661 | if (err) | |
1662 | return err; | |
1663 | ||
1664 | limit = 1000; | |
1665 | while (--limit >= 0) { | |
1666 | udelay(500); | |
1667 | err = mii_read(np, np->phy_addr, MII_BMCR); | |
1668 | if (err < 0) | |
1669 | return err; | |
1670 | if (!(err & BMCR_RESET)) | |
1671 | break; | |
1672 | } | |
1673 | if (limit < 0) { | |
f10a1f2e JP |
1674 | netdev_err(np->dev, "Port %u MII would not reset, bmcr[%04x]\n", |
1675 | np->port, err); | |
a3138df9 DM |
1676 | return -ENODEV; |
1677 | } | |
1678 | ||
1679 | return 0; | |
1680 | } | |
1681 | ||
5fbd7e24 MW |
1682 | static int xcvr_init_1g_rgmii(struct niu *np) |
1683 | { | |
1684 | int err; | |
1685 | u64 val; | |
1686 | u16 bmcr, bmsr, estat; | |
1687 | ||
1688 | val = nr64(MIF_CONFIG); | |
1689 | val &= ~MIF_CONFIG_INDIRECT_MODE; | |
1690 | nw64(MIF_CONFIG, val); | |
1691 | ||
1692 | err = mii_reset(np); | |
1693 | if (err) | |
1694 | return err; | |
1695 | ||
1696 | err = mii_read(np, np->phy_addr, MII_BMSR); | |
1697 | if (err < 0) | |
1698 | return err; | |
1699 | bmsr = err; | |
1700 | ||
1701 | estat = 0; | |
1702 | if (bmsr & BMSR_ESTATEN) { | |
1703 | err = mii_read(np, np->phy_addr, MII_ESTATUS); | |
1704 | if (err < 0) | |
1705 | return err; | |
1706 | estat = err; | |
1707 | } | |
1708 | ||
1709 | bmcr = 0; | |
1710 | err = mii_write(np, np->phy_addr, MII_BMCR, bmcr); | |
1711 | if (err) | |
1712 | return err; | |
1713 | ||
1714 | if (bmsr & BMSR_ESTATEN) { | |
1715 | u16 ctrl1000 = 0; | |
1716 | ||
1717 | if (estat & ESTATUS_1000_TFULL) | |
1718 | ctrl1000 |= ADVERTISE_1000FULL; | |
1719 | err = mii_write(np, np->phy_addr, MII_CTRL1000, ctrl1000); | |
1720 | if (err) | |
1721 | return err; | |
1722 | } | |
1723 | ||
1724 | bmcr = (BMCR_SPEED1000 | BMCR_FULLDPLX); | |
1725 | ||
1726 | err = mii_write(np, np->phy_addr, MII_BMCR, bmcr); | |
1727 | if (err) | |
1728 | return err; | |
1729 | ||
1730 | err = mii_read(np, np->phy_addr, MII_BMCR); | |
1731 | if (err < 0) | |
1732 | return err; | |
1733 | bmcr = mii_read(np, np->phy_addr, MII_BMCR); | |
1734 | ||
1735 | err = mii_read(np, np->phy_addr, MII_BMSR); | |
1736 | if (err < 0) | |
1737 | return err; | |
1738 | ||
1739 | return 0; | |
1740 | } | |
1741 | ||
a3138df9 DM |
1742 | static int mii_init_common(struct niu *np) |
1743 | { | |
1744 | struct niu_link_config *lp = &np->link_config; | |
1745 | u16 bmcr, bmsr, adv, estat; | |
1746 | int err; | |
1747 | ||
1748 | err = mii_reset(np); | |
1749 | if (err) | |
1750 | return err; | |
1751 | ||
1752 | err = mii_read(np, np->phy_addr, MII_BMSR); | |
1753 | if (err < 0) | |
1754 | return err; | |
1755 | bmsr = err; | |
1756 | ||
1757 | estat = 0; | |
1758 | if (bmsr & BMSR_ESTATEN) { | |
1759 | err = mii_read(np, np->phy_addr, MII_ESTATUS); | |
1760 | if (err < 0) | |
1761 | return err; | |
1762 | estat = err; | |
1763 | } | |
1764 | ||
1765 | bmcr = 0; | |
1766 | err = mii_write(np, np->phy_addr, MII_BMCR, bmcr); | |
1767 | if (err) | |
1768 | return err; | |
1769 | ||
1770 | if (lp->loopback_mode == LOOPBACK_MAC) { | |
1771 | bmcr |= BMCR_LOOPBACK; | |
1772 | if (lp->active_speed == SPEED_1000) | |
1773 | bmcr |= BMCR_SPEED1000; | |
1774 | if (lp->active_duplex == DUPLEX_FULL) | |
1775 | bmcr |= BMCR_FULLDPLX; | |
1776 | } | |
1777 | ||
1778 | if (lp->loopback_mode == LOOPBACK_PHY) { | |
1779 | u16 aux; | |
1780 | ||
1781 | aux = (BCM5464R_AUX_CTL_EXT_LB | | |
1782 | BCM5464R_AUX_CTL_WRITE_1); | |
1783 | err = mii_write(np, np->phy_addr, BCM5464R_AUX_CTL, aux); | |
1784 | if (err) | |
1785 | return err; | |
1786 | } | |
1787 | ||
38bb045d CB |
1788 | if (lp->autoneg) { |
1789 | u16 ctrl1000; | |
1790 | ||
1791 | adv = ADVERTISE_CSMA | ADVERTISE_PAUSE_CAP; | |
1792 | if ((bmsr & BMSR_10HALF) && | |
1793 | (lp->advertising & ADVERTISED_10baseT_Half)) | |
1794 | adv |= ADVERTISE_10HALF; | |
1795 | if ((bmsr & BMSR_10FULL) && | |
1796 | (lp->advertising & ADVERTISED_10baseT_Full)) | |
1797 | adv |= ADVERTISE_10FULL; | |
1798 | if ((bmsr & BMSR_100HALF) && | |
1799 | (lp->advertising & ADVERTISED_100baseT_Half)) | |
1800 | adv |= ADVERTISE_100HALF; | |
1801 | if ((bmsr & BMSR_100FULL) && | |
1802 | (lp->advertising & ADVERTISED_100baseT_Full)) | |
1803 | adv |= ADVERTISE_100FULL; | |
1804 | err = mii_write(np, np->phy_addr, MII_ADVERTISE, adv); | |
a3138df9 DM |
1805 | if (err) |
1806 | return err; | |
38bb045d CB |
1807 | |
1808 | if (likely(bmsr & BMSR_ESTATEN)) { | |
1809 | ctrl1000 = 0; | |
1810 | if ((estat & ESTATUS_1000_THALF) && | |
1811 | (lp->advertising & ADVERTISED_1000baseT_Half)) | |
1812 | ctrl1000 |= ADVERTISE_1000HALF; | |
1813 | if ((estat & ESTATUS_1000_TFULL) && | |
1814 | (lp->advertising & ADVERTISED_1000baseT_Full)) | |
1815 | ctrl1000 |= ADVERTISE_1000FULL; | |
1816 | err = mii_write(np, np->phy_addr, | |
1817 | MII_CTRL1000, ctrl1000); | |
1818 | if (err) | |
1819 | return err; | |
1820 | } | |
1821 | ||
1822 | bmcr |= (BMCR_ANENABLE | BMCR_ANRESTART); | |
1823 | } else { | |
1824 | /* !lp->autoneg */ | |
1825 | int fulldpx; | |
1826 | ||
1827 | if (lp->duplex == DUPLEX_FULL) { | |
1828 | bmcr |= BMCR_FULLDPLX; | |
1829 | fulldpx = 1; | |
1830 | } else if (lp->duplex == DUPLEX_HALF) | |
1831 | fulldpx = 0; | |
1832 | else | |
1833 | return -EINVAL; | |
1834 | ||
1835 | if (lp->speed == SPEED_1000) { | |
1836 | /* if X-full requested while not supported, or | |
1837 | X-half requested while not supported... */ | |
1838 | if ((fulldpx && !(estat & ESTATUS_1000_TFULL)) || | |
1839 | (!fulldpx && !(estat & ESTATUS_1000_THALF))) | |
1840 | return -EINVAL; | |
1841 | bmcr |= BMCR_SPEED1000; | |
1842 | } else if (lp->speed == SPEED_100) { | |
1843 | if ((fulldpx && !(bmsr & BMSR_100FULL)) || | |
1844 | (!fulldpx && !(bmsr & BMSR_100HALF))) | |
1845 | return -EINVAL; | |
1846 | bmcr |= BMCR_SPEED100; | |
1847 | } else if (lp->speed == SPEED_10) { | |
1848 | if ((fulldpx && !(bmsr & BMSR_10FULL)) || | |
1849 | (!fulldpx && !(bmsr & BMSR_10HALF))) | |
1850 | return -EINVAL; | |
1851 | } else | |
1852 | return -EINVAL; | |
a3138df9 | 1853 | } |
a3138df9 DM |
1854 | |
1855 | err = mii_write(np, np->phy_addr, MII_BMCR, bmcr); | |
1856 | if (err) | |
1857 | return err; | |
1858 | ||
38bb045d | 1859 | #if 0 |
a3138df9 DM |
1860 | err = mii_read(np, np->phy_addr, MII_BMCR); |
1861 | if (err < 0) | |
1862 | return err; | |
38bb045d CB |
1863 | bmcr = err; |
1864 | ||
a3138df9 DM |
1865 | err = mii_read(np, np->phy_addr, MII_BMSR); |
1866 | if (err < 0) | |
1867 | return err; | |
38bb045d CB |
1868 | bmsr = err; |
1869 | ||
f10a1f2e | 1870 | pr_info("Port %u after MII init bmcr[%04x] bmsr[%04x]\n", |
a3138df9 DM |
1871 | np->port, bmcr, bmsr); |
1872 | #endif | |
1873 | ||
1874 | return 0; | |
1875 | } | |
1876 | ||
1877 | static int xcvr_init_1g(struct niu *np) | |
1878 | { | |
1879 | u64 val; | |
1880 | ||
1881 | /* XXX shared resource, lock parent XXX */ | |
1882 | val = nr64(MIF_CONFIG); | |
1883 | val &= ~MIF_CONFIG_INDIRECT_MODE; | |
1884 | nw64(MIF_CONFIG, val); | |
1885 | ||
1886 | return mii_init_common(np); | |
1887 | } | |
1888 | ||
1889 | static int niu_xcvr_init(struct niu *np) | |
1890 | { | |
1891 | const struct niu_phy_ops *ops = np->phy_ops; | |
1892 | int err; | |
1893 | ||
1894 | err = 0; | |
1895 | if (ops->xcvr_init) | |
1896 | err = ops->xcvr_init(np); | |
1897 | ||
1898 | return err; | |
1899 | } | |
1900 | ||
1901 | static int niu_serdes_init(struct niu *np) | |
1902 | { | |
1903 | const struct niu_phy_ops *ops = np->phy_ops; | |
1904 | int err; | |
1905 | ||
1906 | err = 0; | |
1907 | if (ops->serdes_init) | |
1908 | err = ops->serdes_init(np); | |
1909 | ||
1910 | return err; | |
1911 | } | |
1912 | ||
1913 | static void niu_init_xif(struct niu *); | |
0c3b091b | 1914 | static void niu_handle_led(struct niu *, int status); |
a3138df9 DM |
1915 | |
1916 | static int niu_link_status_common(struct niu *np, int link_up) | |
1917 | { | |
1918 | struct niu_link_config *lp = &np->link_config; | |
1919 | struct net_device *dev = np->dev; | |
1920 | unsigned long flags; | |
1921 | ||
1922 | if (!netif_carrier_ok(dev) && link_up) { | |
f10a1f2e JP |
1923 | netif_info(np, link, dev, "Link is up at %s, %s duplex\n", |
1924 | lp->active_speed == SPEED_10000 ? "10Gb/sec" : | |
1925 | lp->active_speed == SPEED_1000 ? "1Gb/sec" : | |
1926 | lp->active_speed == SPEED_100 ? "100Mbit/sec" : | |
1927 | "10Mbit/sec", | |
1928 | lp->active_duplex == DUPLEX_FULL ? "full" : "half"); | |
a3138df9 DM |
1929 | |
1930 | spin_lock_irqsave(&np->lock, flags); | |
1931 | niu_init_xif(np); | |
0c3b091b | 1932 | niu_handle_led(np, 1); |
a3138df9 DM |
1933 | spin_unlock_irqrestore(&np->lock, flags); |
1934 | ||
1935 | netif_carrier_on(dev); | |
1936 | } else if (netif_carrier_ok(dev) && !link_up) { | |
f10a1f2e | 1937 | netif_warn(np, link, dev, "Link is down\n"); |
0c3b091b ML |
1938 | spin_lock_irqsave(&np->lock, flags); |
1939 | niu_handle_led(np, 0); | |
1940 | spin_unlock_irqrestore(&np->lock, flags); | |
a3138df9 DM |
1941 | netif_carrier_off(dev); |
1942 | } | |
1943 | ||
1944 | return 0; | |
1945 | } | |
1946 | ||
b0de8e40 | 1947 | static int link_status_10g_mrvl(struct niu *np, int *link_up_p) |
a3138df9 | 1948 | { |
b0de8e40 | 1949 | int err, link_up, pma_status, pcs_status; |
a3138df9 DM |
1950 | |
1951 | link_up = 0; | |
1952 | ||
b0de8e40 ML |
1953 | err = mdio_read(np, np->phy_addr, MRVL88X2011_USER_DEV1_ADDR, |
1954 | MRVL88X2011_10G_PMD_STATUS_2); | |
1955 | if (err < 0) | |
1956 | goto out; | |
a3138df9 | 1957 | |
b0de8e40 ML |
1958 | /* Check PMA/PMD Register: 1.0001.2 == 1 */ |
1959 | err = mdio_read(np, np->phy_addr, MRVL88X2011_USER_DEV1_ADDR, | |
1960 | MRVL88X2011_PMA_PMD_STATUS_1); | |
1961 | if (err < 0) | |
1962 | goto out; | |
1963 | ||
1964 | pma_status = ((err & MRVL88X2011_LNK_STATUS_OK) ? 1 : 0); | |
1965 | ||
1966 | /* Check PMC Register : 3.0001.2 == 1: read twice */ | |
1967 | err = mdio_read(np, np->phy_addr, MRVL88X2011_USER_DEV3_ADDR, | |
1968 | MRVL88X2011_PMA_PMD_STATUS_1); | |
1969 | if (err < 0) | |
1970 | goto out; | |
1971 | ||
1972 | err = mdio_read(np, np->phy_addr, MRVL88X2011_USER_DEV3_ADDR, | |
1973 | MRVL88X2011_PMA_PMD_STATUS_1); | |
1974 | if (err < 0) | |
1975 | goto out; | |
1976 | ||
1977 | pcs_status = ((err & MRVL88X2011_LNK_STATUS_OK) ? 1 : 0); | |
1978 | ||
1979 | /* Check XGXS Register : 4.0018.[0-3,12] */ | |
1980 | err = mdio_read(np, np->phy_addr, MRVL88X2011_USER_DEV4_ADDR, | |
1981 | MRVL88X2011_10G_XGXS_LANE_STAT); | |
1982 | if (err < 0) | |
a3138df9 DM |
1983 | goto out; |
1984 | ||
b0de8e40 ML |
1985 | if (err == (PHYXS_XGXS_LANE_STAT_ALINGED | PHYXS_XGXS_LANE_STAT_LANE3 | |
1986 | PHYXS_XGXS_LANE_STAT_LANE2 | PHYXS_XGXS_LANE_STAT_LANE1 | | |
1987 | PHYXS_XGXS_LANE_STAT_LANE0 | PHYXS_XGXS_LANE_STAT_MAGIC | | |
1988 | 0x800)) | |
1989 | link_up = (pma_status && pcs_status) ? 1 : 0; | |
1990 | ||
1991 | np->link_config.active_speed = SPEED_10000; | |
1992 | np->link_config.active_duplex = DUPLEX_FULL; | |
1993 | err = 0; | |
1994 | out: | |
1995 | mrvl88x2011_act_led(np, (link_up ? | |
1996 | MRVL88X2011_LED_CTL_PCS_ACT : | |
1997 | MRVL88X2011_LED_CTL_OFF)); | |
1998 | ||
1999 | *link_up_p = link_up; | |
2000 | return err; | |
2001 | } | |
2002 | ||
a5d6ab56 MW |
2003 | static int link_status_10g_bcm8706(struct niu *np, int *link_up_p) |
2004 | { | |
2005 | int err, link_up; | |
2006 | link_up = 0; | |
2007 | ||
2008 | err = mdio_read(np, np->phy_addr, BCM8704_PMA_PMD_DEV_ADDR, | |
2009 | BCM8704_PMD_RCV_SIGDET); | |
9c5cd670 | 2010 | if (err < 0 || err == 0xffff) |
a5d6ab56 MW |
2011 | goto out; |
2012 | if (!(err & PMD_RCV_SIGDET_GLOBAL)) { | |
2013 | err = 0; | |
2014 | goto out; | |
2015 | } | |
2016 | ||
2017 | err = mdio_read(np, np->phy_addr, BCM8704_PCS_DEV_ADDR, | |
2018 | BCM8704_PCS_10G_R_STATUS); | |
2019 | if (err < 0) | |
2020 | goto out; | |
2021 | ||
2022 | if (!(err & PCS_10G_R_STATUS_BLK_LOCK)) { | |
2023 | err = 0; | |
2024 | goto out; | |
2025 | } | |
2026 | ||
2027 | err = mdio_read(np, np->phy_addr, BCM8704_PHYXS_DEV_ADDR, | |
2028 | BCM8704_PHYXS_XGXS_LANE_STAT); | |
2029 | if (err < 0) | |
2030 | goto out; | |
2031 | if (err != (PHYXS_XGXS_LANE_STAT_ALINGED | | |
2032 | PHYXS_XGXS_LANE_STAT_MAGIC | | |
2033 | PHYXS_XGXS_LANE_STAT_PATTEST | | |
2034 | PHYXS_XGXS_LANE_STAT_LANE3 | | |
2035 | PHYXS_XGXS_LANE_STAT_LANE2 | | |
2036 | PHYXS_XGXS_LANE_STAT_LANE1 | | |
2037 | PHYXS_XGXS_LANE_STAT_LANE0)) { | |
2038 | err = 0; | |
2039 | np->link_config.active_speed = SPEED_INVALID; | |
2040 | np->link_config.active_duplex = DUPLEX_INVALID; | |
2041 | goto out; | |
2042 | } | |
2043 | ||
2044 | link_up = 1; | |
2045 | np->link_config.active_speed = SPEED_10000; | |
2046 | np->link_config.active_duplex = DUPLEX_FULL; | |
2047 | err = 0; | |
2048 | ||
2049 | out: | |
2050 | *link_up_p = link_up; | |
a5d6ab56 MW |
2051 | return err; |
2052 | } | |
2053 | ||
b0de8e40 ML |
2054 | static int link_status_10g_bcom(struct niu *np, int *link_up_p) |
2055 | { | |
2056 | int err, link_up; | |
2057 | ||
2058 | link_up = 0; | |
2059 | ||
a3138df9 DM |
2060 | err = mdio_read(np, np->phy_addr, BCM8704_PMA_PMD_DEV_ADDR, |
2061 | BCM8704_PMD_RCV_SIGDET); | |
2062 | if (err < 0) | |
2063 | goto out; | |
2064 | if (!(err & PMD_RCV_SIGDET_GLOBAL)) { | |
2065 | err = 0; | |
2066 | goto out; | |
2067 | } | |
2068 | ||
2069 | err = mdio_read(np, np->phy_addr, BCM8704_PCS_DEV_ADDR, | |
2070 | BCM8704_PCS_10G_R_STATUS); | |
2071 | if (err < 0) | |
2072 | goto out; | |
2073 | if (!(err & PCS_10G_R_STATUS_BLK_LOCK)) { | |
2074 | err = 0; | |
2075 | goto out; | |
2076 | } | |
2077 | ||
2078 | err = mdio_read(np, np->phy_addr, BCM8704_PHYXS_DEV_ADDR, | |
2079 | BCM8704_PHYXS_XGXS_LANE_STAT); | |
2080 | if (err < 0) | |
2081 | goto out; | |
2082 | ||
2083 | if (err != (PHYXS_XGXS_LANE_STAT_ALINGED | | |
2084 | PHYXS_XGXS_LANE_STAT_MAGIC | | |
2085 | PHYXS_XGXS_LANE_STAT_LANE3 | | |
2086 | PHYXS_XGXS_LANE_STAT_LANE2 | | |
2087 | PHYXS_XGXS_LANE_STAT_LANE1 | | |
2088 | PHYXS_XGXS_LANE_STAT_LANE0)) { | |
2089 | err = 0; | |
2090 | goto out; | |
2091 | } | |
2092 | ||
2093 | link_up = 1; | |
2094 | np->link_config.active_speed = SPEED_10000; | |
2095 | np->link_config.active_duplex = DUPLEX_FULL; | |
2096 | err = 0; | |
2097 | ||
2098 | out: | |
b0de8e40 ML |
2099 | *link_up_p = link_up; |
2100 | return err; | |
2101 | } | |
2102 | ||
2103 | static int link_status_10g(struct niu *np, int *link_up_p) | |
2104 | { | |
2105 | unsigned long flags; | |
2106 | int err = -EINVAL; | |
2107 | ||
2108 | spin_lock_irqsave(&np->lock, flags); | |
2109 | ||
2110 | if (np->link_config.loopback_mode == LOOPBACK_DISABLED) { | |
2111 | int phy_id; | |
2112 | ||
2113 | phy_id = phy_decode(np->parent->port_phy, np->port); | |
2114 | phy_id = np->parent->phy_probe_info.phy_id[phy_id][np->port]; | |
2115 | ||
2116 | /* handle different phy types */ | |
2117 | switch (phy_id & NIU_PHY_ID_MASK) { | |
2118 | case NIU_PHY_ID_MRVL88X2011: | |
2119 | err = link_status_10g_mrvl(np, link_up_p); | |
2120 | break; | |
2121 | ||
2122 | default: /* bcom 8704 */ | |
2123 | err = link_status_10g_bcom(np, link_up_p); | |
2124 | break; | |
2125 | } | |
2126 | } | |
2127 | ||
a3138df9 DM |
2128 | spin_unlock_irqrestore(&np->lock, flags); |
2129 | ||
a3138df9 DM |
2130 | return err; |
2131 | } | |
2132 | ||
a5d6ab56 MW |
2133 | static int niu_10g_phy_present(struct niu *np) |
2134 | { | |
2135 | u64 sig, mask, val; | |
2136 | ||
2137 | sig = nr64(ESR_INT_SIGNALS); | |
2138 | switch (np->port) { | |
2139 | case 0: | |
2140 | mask = ESR_INT_SIGNALS_P0_BITS; | |
2141 | val = (ESR_INT_SRDY0_P0 | | |
2142 | ESR_INT_DET0_P0 | | |
2143 | ESR_INT_XSRDY_P0 | | |
2144 | ESR_INT_XDP_P0_CH3 | | |
2145 | ESR_INT_XDP_P0_CH2 | | |
2146 | ESR_INT_XDP_P0_CH1 | | |
2147 | ESR_INT_XDP_P0_CH0); | |
2148 | break; | |
2149 | ||
2150 | case 1: | |
2151 | mask = ESR_INT_SIGNALS_P1_BITS; | |
2152 | val = (ESR_INT_SRDY0_P1 | | |
2153 | ESR_INT_DET0_P1 | | |
2154 | ESR_INT_XSRDY_P1 | | |
2155 | ESR_INT_XDP_P1_CH3 | | |
2156 | ESR_INT_XDP_P1_CH2 | | |
2157 | ESR_INT_XDP_P1_CH1 | | |
2158 | ESR_INT_XDP_P1_CH0); | |
2159 | break; | |
2160 | ||
2161 | default: | |
2162 | return 0; | |
2163 | } | |
2164 | ||
2165 | if ((sig & mask) != val) | |
2166 | return 0; | |
2167 | return 1; | |
2168 | } | |
2169 | ||
2170 | static int link_status_10g_hotplug(struct niu *np, int *link_up_p) | |
2171 | { | |
2172 | unsigned long flags; | |
2173 | int err = 0; | |
2174 | int phy_present; | |
2175 | int phy_present_prev; | |
2176 | ||
2177 | spin_lock_irqsave(&np->lock, flags); | |
2178 | ||
2179 | if (np->link_config.loopback_mode == LOOPBACK_DISABLED) { | |
2180 | phy_present_prev = (np->flags & NIU_FLAGS_HOTPLUG_PHY_PRESENT) ? | |
2181 | 1 : 0; | |
2182 | phy_present = niu_10g_phy_present(np); | |
2183 | if (phy_present != phy_present_prev) { | |
2184 | /* state change */ | |
2185 | if (phy_present) { | |
9c5cd670 | 2186 | /* A NEM was just plugged in */ |
a5d6ab56 MW |
2187 | np->flags |= NIU_FLAGS_HOTPLUG_PHY_PRESENT; |
2188 | if (np->phy_ops->xcvr_init) | |
2189 | err = np->phy_ops->xcvr_init(np); | |
2190 | if (err) { | |
9c5cd670 TC |
2191 | err = mdio_read(np, np->phy_addr, |
2192 | BCM8704_PHYXS_DEV_ADDR, MII_BMCR); | |
2193 | if (err == 0xffff) { | |
2194 | /* No mdio, back-to-back XAUI */ | |
2195 | goto out; | |
2196 | } | |
a5d6ab56 MW |
2197 | /* debounce */ |
2198 | np->flags &= ~NIU_FLAGS_HOTPLUG_PHY_PRESENT; | |
2199 | } | |
2200 | } else { | |
2201 | np->flags &= ~NIU_FLAGS_HOTPLUG_PHY_PRESENT; | |
2202 | *link_up_p = 0; | |
f10a1f2e JP |
2203 | netif_warn(np, link, np->dev, |
2204 | "Hotplug PHY Removed\n"); | |
a5d6ab56 MW |
2205 | } |
2206 | } | |
9c5cd670 TC |
2207 | out: |
2208 | if (np->flags & NIU_FLAGS_HOTPLUG_PHY_PRESENT) { | |
a5d6ab56 | 2209 | err = link_status_10g_bcm8706(np, link_up_p); |
9c5cd670 TC |
2210 | if (err == 0xffff) { |
2211 | /* No mdio, back-to-back XAUI: it is C10NEM */ | |
2212 | *link_up_p = 1; | |
2213 | np->link_config.active_speed = SPEED_10000; | |
2214 | np->link_config.active_duplex = DUPLEX_FULL; | |
2215 | } | |
2216 | } | |
a5d6ab56 MW |
2217 | } |
2218 | ||
2219 | spin_unlock_irqrestore(&np->lock, flags); | |
2220 | ||
9c5cd670 | 2221 | return 0; |
a5d6ab56 MW |
2222 | } |
2223 | ||
a3138df9 DM |
2224 | static int niu_link_status(struct niu *np, int *link_up_p) |
2225 | { | |
2226 | const struct niu_phy_ops *ops = np->phy_ops; | |
2227 | int err; | |
2228 | ||
2229 | err = 0; | |
2230 | if (ops->link_status) | |
2231 | err = ops->link_status(np, link_up_p); | |
2232 | ||
2233 | return err; | |
2234 | } | |
2235 | ||
2236 | static void niu_timer(unsigned long __opaque) | |
2237 | { | |
2238 | struct niu *np = (struct niu *) __opaque; | |
2239 | unsigned long off; | |
2240 | int err, link_up; | |
2241 | ||
2242 | err = niu_link_status(np, &link_up); | |
2243 | if (!err) | |
2244 | niu_link_status_common(np, link_up); | |
2245 | ||
2246 | if (netif_carrier_ok(np->dev)) | |
2247 | off = 5 * HZ; | |
2248 | else | |
2249 | off = 1 * HZ; | |
2250 | np->timer.expires = jiffies + off; | |
2251 | ||
2252 | add_timer(&np->timer); | |
2253 | } | |
2254 | ||
5fbd7e24 MW |
2255 | static const struct niu_phy_ops phy_ops_10g_serdes = { |
2256 | .serdes_init = serdes_init_10g_serdes, | |
2257 | .link_status = link_status_10g_serdes, | |
2258 | }; | |
2259 | ||
e3e081e1 SB |
2260 | static const struct niu_phy_ops phy_ops_10g_serdes_niu = { |
2261 | .serdes_init = serdes_init_niu_10g_serdes, | |
2262 | .link_status = link_status_10g_serdes, | |
2263 | }; | |
2264 | ||
2265 | static const struct niu_phy_ops phy_ops_1g_serdes_niu = { | |
2266 | .serdes_init = serdes_init_niu_1g_serdes, | |
2267 | .link_status = link_status_1g_serdes, | |
2268 | }; | |
2269 | ||
5fbd7e24 MW |
2270 | static const struct niu_phy_ops phy_ops_1g_rgmii = { |
2271 | .xcvr_init = xcvr_init_1g_rgmii, | |
2272 | .link_status = link_status_1g_rgmii, | |
2273 | }; | |
2274 | ||
a3138df9 | 2275 | static const struct niu_phy_ops phy_ops_10g_fiber_niu = { |
e3e081e1 | 2276 | .serdes_init = serdes_init_niu_10g_fiber, |
a3138df9 DM |
2277 | .xcvr_init = xcvr_init_10g, |
2278 | .link_status = link_status_10g, | |
2279 | }; | |
2280 | ||
2281 | static const struct niu_phy_ops phy_ops_10g_fiber = { | |
2282 | .serdes_init = serdes_init_10g, | |
2283 | .xcvr_init = xcvr_init_10g, | |
2284 | .link_status = link_status_10g, | |
2285 | }; | |
2286 | ||
a5d6ab56 MW |
2287 | static const struct niu_phy_ops phy_ops_10g_fiber_hotplug = { |
2288 | .serdes_init = serdes_init_10g, | |
2289 | .xcvr_init = xcvr_init_10g_bcm8706, | |
2290 | .link_status = link_status_10g_hotplug, | |
2291 | }; | |
2292 | ||
9c5cd670 TC |
2293 | static const struct niu_phy_ops phy_ops_niu_10g_hotplug = { |
2294 | .serdes_init = serdes_init_niu_10g_fiber, | |
2295 | .xcvr_init = xcvr_init_10g_bcm8706, | |
2296 | .link_status = link_status_10g_hotplug, | |
2297 | }; | |
2298 | ||
a3138df9 DM |
2299 | static const struct niu_phy_ops phy_ops_10g_copper = { |
2300 | .serdes_init = serdes_init_10g, | |
2301 | .link_status = link_status_10g, /* XXX */ | |
2302 | }; | |
2303 | ||
2304 | static const struct niu_phy_ops phy_ops_1g_fiber = { | |
2305 | .serdes_init = serdes_init_1g, | |
2306 | .xcvr_init = xcvr_init_1g, | |
2307 | .link_status = link_status_1g, | |
2308 | }; | |
2309 | ||
2310 | static const struct niu_phy_ops phy_ops_1g_copper = { | |
2311 | .xcvr_init = xcvr_init_1g, | |
2312 | .link_status = link_status_1g, | |
2313 | }; | |
2314 | ||
2315 | struct niu_phy_template { | |
2316 | const struct niu_phy_ops *ops; | |
2317 | u32 phy_addr_base; | |
2318 | }; | |
2319 | ||
e3e081e1 | 2320 | static const struct niu_phy_template phy_template_niu_10g_fiber = { |
a3138df9 DM |
2321 | .ops = &phy_ops_10g_fiber_niu, |
2322 | .phy_addr_base = 16, | |
2323 | }; | |
2324 | ||
e3e081e1 SB |
2325 | static const struct niu_phy_template phy_template_niu_10g_serdes = { |
2326 | .ops = &phy_ops_10g_serdes_niu, | |
2327 | .phy_addr_base = 0, | |
2328 | }; | |
2329 | ||
2330 | static const struct niu_phy_template phy_template_niu_1g_serdes = { | |
2331 | .ops = &phy_ops_1g_serdes_niu, | |
2332 | .phy_addr_base = 0, | |
2333 | }; | |
2334 | ||
a3138df9 DM |
2335 | static const struct niu_phy_template phy_template_10g_fiber = { |
2336 | .ops = &phy_ops_10g_fiber, | |
2337 | .phy_addr_base = 8, | |
2338 | }; | |
2339 | ||
a5d6ab56 MW |
2340 | static const struct niu_phy_template phy_template_10g_fiber_hotplug = { |
2341 | .ops = &phy_ops_10g_fiber_hotplug, | |
2342 | .phy_addr_base = 8, | |
2343 | }; | |
2344 | ||
9c5cd670 TC |
2345 | static const struct niu_phy_template phy_template_niu_10g_hotplug = { |
2346 | .ops = &phy_ops_niu_10g_hotplug, | |
2347 | .phy_addr_base = 8, | |
2348 | }; | |
2349 | ||
a3138df9 DM |
2350 | static const struct niu_phy_template phy_template_10g_copper = { |
2351 | .ops = &phy_ops_10g_copper, | |
2352 | .phy_addr_base = 10, | |
2353 | }; | |
2354 | ||
2355 | static const struct niu_phy_template phy_template_1g_fiber = { | |
2356 | .ops = &phy_ops_1g_fiber, | |
2357 | .phy_addr_base = 0, | |
2358 | }; | |
2359 | ||
2360 | static const struct niu_phy_template phy_template_1g_copper = { | |
2361 | .ops = &phy_ops_1g_copper, | |
2362 | .phy_addr_base = 0, | |
2363 | }; | |
2364 | ||
5fbd7e24 MW |
2365 | static const struct niu_phy_template phy_template_1g_rgmii = { |
2366 | .ops = &phy_ops_1g_rgmii, | |
2367 | .phy_addr_base = 0, | |
2368 | }; | |
2369 | ||
2370 | static const struct niu_phy_template phy_template_10g_serdes = { | |
2371 | .ops = &phy_ops_10g_serdes, | |
2372 | .phy_addr_base = 0, | |
2373 | }; | |
2374 | ||
2375 | static int niu_atca_port_num[4] = { | |
2376 | 0, 0, 11, 10 | |
2377 | }; | |
2378 | ||
2379 | static int serdes_init_10g_serdes(struct niu *np) | |
2380 | { | |
2381 | struct niu_link_config *lp = &np->link_config; | |
2382 | unsigned long ctrl_reg, test_cfg_reg, pll_cfg, i; | |
2383 | u64 ctrl_val, test_cfg_val, sig, mask, val; | |
5fbd7e24 MW |
2384 | u64 reset_val; |
2385 | ||
2386 | switch (np->port) { | |
2387 | case 0: | |
2388 | reset_val = ENET_SERDES_RESET_0; | |
2389 | ctrl_reg = ENET_SERDES_0_CTRL_CFG; | |
2390 | test_cfg_reg = ENET_SERDES_0_TEST_CFG; | |
2391 | pll_cfg = ENET_SERDES_0_PLL_CFG; | |
2392 | break; | |
2393 | case 1: | |
2394 | reset_val = ENET_SERDES_RESET_1; | |
2395 | ctrl_reg = ENET_SERDES_1_CTRL_CFG; | |
2396 | test_cfg_reg = ENET_SERDES_1_TEST_CFG; | |
2397 | pll_cfg = ENET_SERDES_1_PLL_CFG; | |
2398 | break; | |
2399 | ||
2400 | default: | |
2401 | return -EINVAL; | |
2402 | } | |
2403 | ctrl_val = (ENET_SERDES_CTRL_SDET_0 | | |
2404 | ENET_SERDES_CTRL_SDET_1 | | |
2405 | ENET_SERDES_CTRL_SDET_2 | | |
2406 | ENET_SERDES_CTRL_SDET_3 | | |
2407 | (0x5 << ENET_SERDES_CTRL_EMPH_0_SHIFT) | | |
2408 | (0x5 << ENET_SERDES_CTRL_EMPH_1_SHIFT) | | |
2409 | (0x5 << ENET_SERDES_CTRL_EMPH_2_SHIFT) | | |
2410 | (0x5 << ENET_SERDES_CTRL_EMPH_3_SHIFT) | | |
2411 | (0x1 << ENET_SERDES_CTRL_LADJ_0_SHIFT) | | |
2412 | (0x1 << ENET_SERDES_CTRL_LADJ_1_SHIFT) | | |
2413 | (0x1 << ENET_SERDES_CTRL_LADJ_2_SHIFT) | | |
2414 | (0x1 << ENET_SERDES_CTRL_LADJ_3_SHIFT)); | |
2415 | test_cfg_val = 0; | |
2416 | ||
2417 | if (lp->loopback_mode == LOOPBACK_PHY) { | |
2418 | test_cfg_val |= ((ENET_TEST_MD_PAD_LOOPBACK << | |
2419 | ENET_SERDES_TEST_MD_0_SHIFT) | | |
2420 | (ENET_TEST_MD_PAD_LOOPBACK << | |
2421 | ENET_SERDES_TEST_MD_1_SHIFT) | | |
2422 | (ENET_TEST_MD_PAD_LOOPBACK << | |
2423 | ENET_SERDES_TEST_MD_2_SHIFT) | | |
2424 | (ENET_TEST_MD_PAD_LOOPBACK << | |
2425 | ENET_SERDES_TEST_MD_3_SHIFT)); | |
2426 | } | |
2427 | ||
2428 | esr_reset(np); | |
2429 | nw64(pll_cfg, ENET_SERDES_PLL_FBDIV2); | |
2430 | nw64(ctrl_reg, ctrl_val); | |
2431 | nw64(test_cfg_reg, test_cfg_val); | |
2432 | ||
2433 | /* Initialize all 4 lanes of the SERDES. */ | |
2434 | for (i = 0; i < 4; i++) { | |
2435 | u32 rxtx_ctrl, glue0; | |
7c34eb89 | 2436 | int err; |
5fbd7e24 MW |
2437 | |
2438 | err = esr_read_rxtx_ctrl(np, i, &rxtx_ctrl); | |
2439 | if (err) | |
2440 | return err; | |
2441 | err = esr_read_glue0(np, i, &glue0); | |
2442 | if (err) | |
2443 | return err; | |
2444 | ||
2445 | rxtx_ctrl &= ~(ESR_RXTX_CTRL_VMUXLO); | |
2446 | rxtx_ctrl |= (ESR_RXTX_CTRL_ENSTRETCH | | |
2447 | (2 << ESR_RXTX_CTRL_VMUXLO_SHIFT)); | |
2448 | ||
2449 | glue0 &= ~(ESR_GLUE_CTRL0_SRATE | | |
2450 | ESR_GLUE_CTRL0_THCNT | | |
2451 | ESR_GLUE_CTRL0_BLTIME); | |
2452 | glue0 |= (ESR_GLUE_CTRL0_RXLOSENAB | | |
2453 | (0xf << ESR_GLUE_CTRL0_SRATE_SHIFT) | | |
2454 | (0xff << ESR_GLUE_CTRL0_THCNT_SHIFT) | | |
2455 | (BLTIME_300_CYCLES << | |
2456 | ESR_GLUE_CTRL0_BLTIME_SHIFT)); | |
2457 | ||
2458 | err = esr_write_rxtx_ctrl(np, i, rxtx_ctrl); | |
2459 | if (err) | |
2460 | return err; | |
2461 | err = esr_write_glue0(np, i, glue0); | |
2462 | if (err) | |
2463 | return err; | |
2464 | } | |
2465 | ||
2466 | ||
2467 | sig = nr64(ESR_INT_SIGNALS); | |
2468 | switch (np->port) { | |
2469 | case 0: | |
2470 | mask = ESR_INT_SIGNALS_P0_BITS; | |
2471 | val = (ESR_INT_SRDY0_P0 | | |
2472 | ESR_INT_DET0_P0 | | |
2473 | ESR_INT_XSRDY_P0 | | |
2474 | ESR_INT_XDP_P0_CH3 | | |
2475 | ESR_INT_XDP_P0_CH2 | | |
2476 | ESR_INT_XDP_P0_CH1 | | |
2477 | ESR_INT_XDP_P0_CH0); | |
2478 | break; | |
2479 | ||
2480 | case 1: | |
2481 | mask = ESR_INT_SIGNALS_P1_BITS; | |
2482 | val = (ESR_INT_SRDY0_P1 | | |
2483 | ESR_INT_DET0_P1 | | |
2484 | ESR_INT_XSRDY_P1 | | |
2485 | ESR_INT_XDP_P1_CH3 | | |
2486 | ESR_INT_XDP_P1_CH2 | | |
2487 | ESR_INT_XDP_P1_CH1 | | |
2488 | ESR_INT_XDP_P1_CH0); | |
2489 | break; | |
2490 | ||
2491 | default: | |
2492 | return -EINVAL; | |
2493 | } | |
2494 | ||
2495 | if ((sig & mask) != val) { | |
2496 | int err; | |
2497 | err = serdes_init_1g_serdes(np); | |
2498 | if (!err) { | |
2499 | np->flags &= ~NIU_FLAGS_10G; | |
2500 | np->mac_xcvr = MAC_XCVR_PCS; | |
2501 | } else { | |
f10a1f2e JP |
2502 | netdev_err(np->dev, "Port %u 10G/1G SERDES Link Failed\n", |
2503 | np->port); | |
5fbd7e24 MW |
2504 | return -ENODEV; |
2505 | } | |
2506 | } | |
2507 | ||
2508 | return 0; | |
2509 | } | |
2510 | ||
a3138df9 DM |
2511 | static int niu_determine_phy_disposition(struct niu *np) |
2512 | { | |
2513 | struct niu_parent *parent = np->parent; | |
2514 | u8 plat_type = parent->plat_type; | |
2515 | const struct niu_phy_template *tp; | |
2516 | u32 phy_addr_off = 0; | |
2517 | ||
2518 | if (plat_type == PLAT_TYPE_NIU) { | |
e3e081e1 SB |
2519 | switch (np->flags & |
2520 | (NIU_FLAGS_10G | | |
2521 | NIU_FLAGS_FIBER | | |
2522 | NIU_FLAGS_XCVR_SERDES)) { | |
2523 | case NIU_FLAGS_10G | NIU_FLAGS_XCVR_SERDES: | |
2524 | /* 10G Serdes */ | |
2525 | tp = &phy_template_niu_10g_serdes; | |
2526 | break; | |
2527 | case NIU_FLAGS_XCVR_SERDES: | |
2528 | /* 1G Serdes */ | |
2529 | tp = &phy_template_niu_1g_serdes; | |
2530 | break; | |
2531 | case NIU_FLAGS_10G | NIU_FLAGS_FIBER: | |
2532 | /* 10G Fiber */ | |
2533 | default: | |
9c5cd670 TC |
2534 | if (np->flags & NIU_FLAGS_HOTPLUG_PHY) { |
2535 | tp = &phy_template_niu_10g_hotplug; | |
2536 | if (np->port == 0) | |
2537 | phy_addr_off = 8; | |
2538 | if (np->port == 1) | |
2539 | phy_addr_off = 12; | |
2540 | } else { | |
2541 | tp = &phy_template_niu_10g_fiber; | |
2542 | phy_addr_off += np->port; | |
2543 | } | |
e3e081e1 SB |
2544 | break; |
2545 | } | |
a3138df9 | 2546 | } else { |
5fbd7e24 MW |
2547 | switch (np->flags & |
2548 | (NIU_FLAGS_10G | | |
2549 | NIU_FLAGS_FIBER | | |
2550 | NIU_FLAGS_XCVR_SERDES)) { | |
a3138df9 DM |
2551 | case 0: |
2552 | /* 1G copper */ | |
2553 | tp = &phy_template_1g_copper; | |
2554 | if (plat_type == PLAT_TYPE_VF_P0) | |
2555 | phy_addr_off = 10; | |
2556 | else if (plat_type == PLAT_TYPE_VF_P1) | |
2557 | phy_addr_off = 26; | |
2558 | ||
2559 | phy_addr_off += (np->port ^ 0x3); | |
2560 | break; | |
2561 | ||
2562 | case NIU_FLAGS_10G: | |
2563 | /* 10G copper */ | |
e0d8496a | 2564 | tp = &phy_template_10g_copper; |
a3138df9 DM |
2565 | break; |
2566 | ||
2567 | case NIU_FLAGS_FIBER: | |
2568 | /* 1G fiber */ | |
2569 | tp = &phy_template_1g_fiber; | |
2570 | break; | |
2571 | ||
2572 | case NIU_FLAGS_10G | NIU_FLAGS_FIBER: | |
2573 | /* 10G fiber */ | |
2574 | tp = &phy_template_10g_fiber; | |
2575 | if (plat_type == PLAT_TYPE_VF_P0 || | |
2576 | plat_type == PLAT_TYPE_VF_P1) | |
2577 | phy_addr_off = 8; | |
2578 | phy_addr_off += np->port; | |
a5d6ab56 MW |
2579 | if (np->flags & NIU_FLAGS_HOTPLUG_PHY) { |
2580 | tp = &phy_template_10g_fiber_hotplug; | |
2581 | if (np->port == 0) | |
2582 | phy_addr_off = 8; | |
2583 | if (np->port == 1) | |
2584 | phy_addr_off = 12; | |
2585 | } | |
a3138df9 DM |
2586 | break; |
2587 | ||
5fbd7e24 MW |
2588 | case NIU_FLAGS_10G | NIU_FLAGS_XCVR_SERDES: |
2589 | case NIU_FLAGS_XCVR_SERDES | NIU_FLAGS_FIBER: | |
2590 | case NIU_FLAGS_XCVR_SERDES: | |
2591 | switch(np->port) { | |
2592 | case 0: | |
2593 | case 1: | |
2594 | tp = &phy_template_10g_serdes; | |
2595 | break; | |
2596 | case 2: | |
2597 | case 3: | |
2598 | tp = &phy_template_1g_rgmii; | |
2599 | break; | |
2600 | default: | |
2601 | return -EINVAL; | |
2602 | break; | |
2603 | } | |
2604 | phy_addr_off = niu_atca_port_num[np->port]; | |
2605 | break; | |
2606 | ||
a3138df9 DM |
2607 | default: |
2608 | return -EINVAL; | |
2609 | } | |
2610 | } | |
2611 | ||
2612 | np->phy_ops = tp->ops; | |
2613 | np->phy_addr = tp->phy_addr_base + phy_addr_off; | |
2614 | ||
2615 | return 0; | |
2616 | } | |
2617 | ||
2618 | static int niu_init_link(struct niu *np) | |
2619 | { | |
2620 | struct niu_parent *parent = np->parent; | |
2621 | int err, ignore; | |
2622 | ||
2623 | if (parent->plat_type == PLAT_TYPE_NIU) { | |
2624 | err = niu_xcvr_init(np); | |
2625 | if (err) | |
2626 | return err; | |
2627 | msleep(200); | |
2628 | } | |
2629 | err = niu_serdes_init(np); | |
9c5cd670 | 2630 | if (err && !(np->flags & NIU_FLAGS_HOTPLUG_PHY)) |
a3138df9 DM |
2631 | return err; |
2632 | msleep(200); | |
2633 | err = niu_xcvr_init(np); | |
9c5cd670 | 2634 | if (!err || (np->flags & NIU_FLAGS_HOTPLUG_PHY)) |
a3138df9 DM |
2635 | niu_link_status(np, &ignore); |
2636 | return 0; | |
2637 | } | |
2638 | ||
2639 | static void niu_set_primary_mac(struct niu *np, unsigned char *addr) | |
2640 | { | |
2641 | u16 reg0 = addr[4] << 8 | addr[5]; | |
2642 | u16 reg1 = addr[2] << 8 | addr[3]; | |
2643 | u16 reg2 = addr[0] << 8 | addr[1]; | |
2644 | ||
2645 | if (np->flags & NIU_FLAGS_XMAC) { | |
2646 | nw64_mac(XMAC_ADDR0, reg0); | |
2647 | nw64_mac(XMAC_ADDR1, reg1); | |
2648 | nw64_mac(XMAC_ADDR2, reg2); | |
2649 | } else { | |
2650 | nw64_mac(BMAC_ADDR0, reg0); | |
2651 | nw64_mac(BMAC_ADDR1, reg1); | |
2652 | nw64_mac(BMAC_ADDR2, reg2); | |
2653 | } | |
2654 | } | |
2655 | ||
2656 | static int niu_num_alt_addr(struct niu *np) | |
2657 | { | |
2658 | if (np->flags & NIU_FLAGS_XMAC) | |
2659 | return XMAC_NUM_ALT_ADDR; | |
2660 | else | |
2661 | return BMAC_NUM_ALT_ADDR; | |
2662 | } | |
2663 | ||
2664 | static int niu_set_alt_mac(struct niu *np, int index, unsigned char *addr) | |
2665 | { | |
2666 | u16 reg0 = addr[4] << 8 | addr[5]; | |
2667 | u16 reg1 = addr[2] << 8 | addr[3]; | |
2668 | u16 reg2 = addr[0] << 8 | addr[1]; | |
2669 | ||
2670 | if (index >= niu_num_alt_addr(np)) | |
2671 | return -EINVAL; | |
2672 | ||
2673 | if (np->flags & NIU_FLAGS_XMAC) { | |
2674 | nw64_mac(XMAC_ALT_ADDR0(index), reg0); | |
2675 | nw64_mac(XMAC_ALT_ADDR1(index), reg1); | |
2676 | nw64_mac(XMAC_ALT_ADDR2(index), reg2); | |
2677 | } else { | |
2678 | nw64_mac(BMAC_ALT_ADDR0(index), reg0); | |
2679 | nw64_mac(BMAC_ALT_ADDR1(index), reg1); | |
2680 | nw64_mac(BMAC_ALT_ADDR2(index), reg2); | |
2681 | } | |
2682 | ||
2683 | return 0; | |
2684 | } | |
2685 | ||
2686 | static int niu_enable_alt_mac(struct niu *np, int index, int on) | |
2687 | { | |
2688 | unsigned long reg; | |
2689 | u64 val, mask; | |
2690 | ||
2691 | if (index >= niu_num_alt_addr(np)) | |
2692 | return -EINVAL; | |
2693 | ||
fa907895 | 2694 | if (np->flags & NIU_FLAGS_XMAC) { |
a3138df9 | 2695 | reg = XMAC_ADDR_CMPEN; |
fa907895 MW |
2696 | mask = 1 << index; |
2697 | } else { | |
a3138df9 | 2698 | reg = BMAC_ADDR_CMPEN; |
fa907895 MW |
2699 | mask = 1 << (index + 1); |
2700 | } | |
a3138df9 DM |
2701 | |
2702 | val = nr64_mac(reg); | |
2703 | if (on) | |
2704 | val |= mask; | |
2705 | else | |
2706 | val &= ~mask; | |
2707 | nw64_mac(reg, val); | |
2708 | ||
2709 | return 0; | |
2710 | } | |
2711 | ||
2712 | static void __set_rdc_table_num_hw(struct niu *np, unsigned long reg, | |
2713 | int num, int mac_pref) | |
2714 | { | |
2715 | u64 val = nr64_mac(reg); | |
2716 | val &= ~(HOST_INFO_MACRDCTBLN | HOST_INFO_MPR); | |
2717 | val |= num; | |
2718 | if (mac_pref) | |
2719 | val |= HOST_INFO_MPR; | |
2720 | nw64_mac(reg, val); | |
2721 | } | |
2722 | ||
2723 | static int __set_rdc_table_num(struct niu *np, | |
2724 | int xmac_index, int bmac_index, | |
2725 | int rdc_table_num, int mac_pref) | |
2726 | { | |
2727 | unsigned long reg; | |
2728 | ||
2729 | if (rdc_table_num & ~HOST_INFO_MACRDCTBLN) | |
2730 | return -EINVAL; | |
2731 | if (np->flags & NIU_FLAGS_XMAC) | |
2732 | reg = XMAC_HOST_INFO(xmac_index); | |
2733 | else | |
2734 | reg = BMAC_HOST_INFO(bmac_index); | |
2735 | __set_rdc_table_num_hw(np, reg, rdc_table_num, mac_pref); | |
2736 | return 0; | |
2737 | } | |
2738 | ||
2739 | static int niu_set_primary_mac_rdc_table(struct niu *np, int table_num, | |
2740 | int mac_pref) | |
2741 | { | |
2742 | return __set_rdc_table_num(np, 17, 0, table_num, mac_pref); | |
2743 | } | |
2744 | ||
2745 | static int niu_set_multicast_mac_rdc_table(struct niu *np, int table_num, | |
2746 | int mac_pref) | |
2747 | { | |
2748 | return __set_rdc_table_num(np, 16, 8, table_num, mac_pref); | |
2749 | } | |
2750 | ||
2751 | static int niu_set_alt_mac_rdc_table(struct niu *np, int idx, | |
2752 | int table_num, int mac_pref) | |
2753 | { | |
2754 | if (idx >= niu_num_alt_addr(np)) | |
2755 | return -EINVAL; | |
2756 | return __set_rdc_table_num(np, idx, idx + 1, table_num, mac_pref); | |
2757 | } | |
2758 | ||
2759 | static u64 vlan_entry_set_parity(u64 reg_val) | |
2760 | { | |
2761 | u64 port01_mask; | |
2762 | u64 port23_mask; | |
2763 | ||
2764 | port01_mask = 0x00ff; | |
2765 | port23_mask = 0xff00; | |
2766 | ||
2767 | if (hweight64(reg_val & port01_mask) & 1) | |
2768 | reg_val |= ENET_VLAN_TBL_PARITY0; | |
2769 | else | |
2770 | reg_val &= ~ENET_VLAN_TBL_PARITY0; | |
2771 | ||
2772 | if (hweight64(reg_val & port23_mask) & 1) | |
2773 | reg_val |= ENET_VLAN_TBL_PARITY1; | |
2774 | else | |
2775 | reg_val &= ~ENET_VLAN_TBL_PARITY1; | |
2776 | ||
2777 | return reg_val; | |
2778 | } | |
2779 | ||
2780 | static void vlan_tbl_write(struct niu *np, unsigned long index, | |
2781 | int port, int vpr, int rdc_table) | |
2782 | { | |
2783 | u64 reg_val = nr64(ENET_VLAN_TBL(index)); | |
2784 | ||
2785 | reg_val &= ~((ENET_VLAN_TBL_VPR | | |
2786 | ENET_VLAN_TBL_VLANRDCTBLN) << | |
2787 | ENET_VLAN_TBL_SHIFT(port)); | |
2788 | if (vpr) | |
2789 | reg_val |= (ENET_VLAN_TBL_VPR << | |
2790 | ENET_VLAN_TBL_SHIFT(port)); | |
2791 | reg_val |= (rdc_table << ENET_VLAN_TBL_SHIFT(port)); | |
2792 | ||
2793 | reg_val = vlan_entry_set_parity(reg_val); | |
2794 | ||
2795 | nw64(ENET_VLAN_TBL(index), reg_val); | |
2796 | } | |
2797 | ||
2798 | static void vlan_tbl_clear(struct niu *np) | |
2799 | { | |
2800 | int i; | |
2801 | ||
2802 | for (i = 0; i < ENET_VLAN_TBL_NUM_ENTRIES; i++) | |
2803 | nw64(ENET_VLAN_TBL(i), 0); | |
2804 | } | |
2805 | ||
2806 | static int tcam_wait_bit(struct niu *np, u64 bit) | |
2807 | { | |
2808 | int limit = 1000; | |
2809 | ||
2810 | while (--limit > 0) { | |
2811 | if (nr64(TCAM_CTL) & bit) | |
2812 | break; | |
2813 | udelay(1); | |
2814 | } | |
d2a928e4 | 2815 | if (limit <= 0) |
a3138df9 DM |
2816 | return -ENODEV; |
2817 | ||
2818 | return 0; | |
2819 | } | |
2820 | ||
2821 | static int tcam_flush(struct niu *np, int index) | |
2822 | { | |
2823 | nw64(TCAM_KEY_0, 0x00); | |
2824 | nw64(TCAM_KEY_MASK_0, 0xff); | |
2825 | nw64(TCAM_CTL, (TCAM_CTL_RWC_TCAM_WRITE | index)); | |
2826 | ||
2827 | return tcam_wait_bit(np, TCAM_CTL_STAT); | |
2828 | } | |
2829 | ||
2830 | #if 0 | |
2831 | static int tcam_read(struct niu *np, int index, | |
2832 | u64 *key, u64 *mask) | |
2833 | { | |
2834 | int err; | |
2835 | ||
2836 | nw64(TCAM_CTL, (TCAM_CTL_RWC_TCAM_READ | index)); | |
2837 | err = tcam_wait_bit(np, TCAM_CTL_STAT); | |
2838 | if (!err) { | |
2839 | key[0] = nr64(TCAM_KEY_0); | |
2840 | key[1] = nr64(TCAM_KEY_1); | |
2841 | key[2] = nr64(TCAM_KEY_2); | |
2842 | key[3] = nr64(TCAM_KEY_3); | |
2843 | mask[0] = nr64(TCAM_KEY_MASK_0); | |
2844 | mask[1] = nr64(TCAM_KEY_MASK_1); | |
2845 | mask[2] = nr64(TCAM_KEY_MASK_2); | |
2846 | mask[3] = nr64(TCAM_KEY_MASK_3); | |
2847 | } | |
2848 | return err; | |
2849 | } | |
2850 | #endif | |
2851 | ||
2852 | static int tcam_write(struct niu *np, int index, | |
2853 | u64 *key, u64 *mask) | |
2854 | { | |
2855 | nw64(TCAM_KEY_0, key[0]); | |
2856 | nw64(TCAM_KEY_1, key[1]); | |
2857 | nw64(TCAM_KEY_2, key[2]); | |
2858 | nw64(TCAM_KEY_3, key[3]); | |
2859 | nw64(TCAM_KEY_MASK_0, mask[0]); | |
2860 | nw64(TCAM_KEY_MASK_1, mask[1]); | |
2861 | nw64(TCAM_KEY_MASK_2, mask[2]); | |
2862 | nw64(TCAM_KEY_MASK_3, mask[3]); | |
2863 | nw64(TCAM_CTL, (TCAM_CTL_RWC_TCAM_WRITE | index)); | |
2864 | ||
2865 | return tcam_wait_bit(np, TCAM_CTL_STAT); | |
2866 | } | |
2867 | ||
2868 | #if 0 | |
2869 | static int tcam_assoc_read(struct niu *np, int index, u64 *data) | |
2870 | { | |
2871 | int err; | |
2872 | ||
2873 | nw64(TCAM_CTL, (TCAM_CTL_RWC_RAM_READ | index)); | |
2874 | err = tcam_wait_bit(np, TCAM_CTL_STAT); | |
2875 | if (!err) | |
2876 | *data = nr64(TCAM_KEY_1); | |
2877 | ||
2878 | return err; | |
2879 | } | |
2880 | #endif | |
2881 | ||
2882 | static int tcam_assoc_write(struct niu *np, int index, u64 assoc_data) | |
2883 | { | |
2884 | nw64(TCAM_KEY_1, assoc_data); | |
2885 | nw64(TCAM_CTL, (TCAM_CTL_RWC_RAM_WRITE | index)); | |
2886 | ||
2887 | return tcam_wait_bit(np, TCAM_CTL_STAT); | |
2888 | } | |
2889 | ||
2890 | static void tcam_enable(struct niu *np, int on) | |
2891 | { | |
2892 | u64 val = nr64(FFLP_CFG_1); | |
2893 | ||
2894 | if (on) | |
2895 | val &= ~FFLP_CFG_1_TCAM_DIS; | |
2896 | else | |
2897 | val |= FFLP_CFG_1_TCAM_DIS; | |
2898 | nw64(FFLP_CFG_1, val); | |
2899 | } | |
2900 | ||
2901 | static void tcam_set_lat_and_ratio(struct niu *np, u64 latency, u64 ratio) | |
2902 | { | |
2903 | u64 val = nr64(FFLP_CFG_1); | |
2904 | ||
2905 | val &= ~(FFLP_CFG_1_FFLPINITDONE | | |
2906 | FFLP_CFG_1_CAMLAT | | |
2907 | FFLP_CFG_1_CAMRATIO); | |
2908 | val |= (latency << FFLP_CFG_1_CAMLAT_SHIFT); | |
2909 | val |= (ratio << FFLP_CFG_1_CAMRATIO_SHIFT); | |
2910 | nw64(FFLP_CFG_1, val); | |
2911 | ||
2912 | val = nr64(FFLP_CFG_1); | |
2913 | val |= FFLP_CFG_1_FFLPINITDONE; | |
2914 | nw64(FFLP_CFG_1, val); | |
2915 | } | |
2916 | ||
2917 | static int tcam_user_eth_class_enable(struct niu *np, unsigned long class, | |
2918 | int on) | |
2919 | { | |
2920 | unsigned long reg; | |
2921 | u64 val; | |
2922 | ||
2923 | if (class < CLASS_CODE_ETHERTYPE1 || | |
2924 | class > CLASS_CODE_ETHERTYPE2) | |
2925 | return -EINVAL; | |
2926 | ||
2927 | reg = L2_CLS(class - CLASS_CODE_ETHERTYPE1); | |
2928 | val = nr64(reg); | |
2929 | if (on) | |
2930 | val |= L2_CLS_VLD; | |
2931 | else | |
2932 | val &= ~L2_CLS_VLD; | |
2933 | nw64(reg, val); | |
2934 | ||
2935 | return 0; | |
2936 | } | |
2937 | ||
2938 | #if 0 | |
2939 | static int tcam_user_eth_class_set(struct niu *np, unsigned long class, | |
2940 | u64 ether_type) | |
2941 | { | |
2942 | unsigned long reg; | |
2943 | u64 val; | |
2944 | ||
2945 | if (class < CLASS_CODE_ETHERTYPE1 || | |
2946 | class > CLASS_CODE_ETHERTYPE2 || | |
2947 | (ether_type & ~(u64)0xffff) != 0) | |
2948 | return -EINVAL; | |
2949 | ||
2950 | reg = L2_CLS(class - CLASS_CODE_ETHERTYPE1); | |
2951 | val = nr64(reg); | |
2952 | val &= ~L2_CLS_ETYPE; | |
2953 | val |= (ether_type << L2_CLS_ETYPE_SHIFT); | |
2954 | nw64(reg, val); | |
2955 | ||
2956 | return 0; | |
2957 | } | |
2958 | #endif | |
2959 | ||
2960 | static int tcam_user_ip_class_enable(struct niu *np, unsigned long class, | |
2961 | int on) | |
2962 | { | |
2963 | unsigned long reg; | |
2964 | u64 val; | |
2965 | ||
2966 | if (class < CLASS_CODE_USER_PROG1 || | |
2967 | class > CLASS_CODE_USER_PROG4) | |
2968 | return -EINVAL; | |
2969 | ||
2970 | reg = L3_CLS(class - CLASS_CODE_USER_PROG1); | |
2971 | val = nr64(reg); | |
2972 | if (on) | |
2973 | val |= L3_CLS_VALID; | |
2974 | else | |
2975 | val &= ~L3_CLS_VALID; | |
2976 | nw64(reg, val); | |
2977 | ||
2978 | return 0; | |
2979 | } | |
2980 | ||
a3138df9 DM |
2981 | static int tcam_user_ip_class_set(struct niu *np, unsigned long class, |
2982 | int ipv6, u64 protocol_id, | |
2983 | u64 tos_mask, u64 tos_val) | |
2984 | { | |
2985 | unsigned long reg; | |
2986 | u64 val; | |
2987 | ||
2988 | if (class < CLASS_CODE_USER_PROG1 || | |
2989 | class > CLASS_CODE_USER_PROG4 || | |
2990 | (protocol_id & ~(u64)0xff) != 0 || | |
2991 | (tos_mask & ~(u64)0xff) != 0 || | |
2992 | (tos_val & ~(u64)0xff) != 0) | |
2993 | return -EINVAL; | |
2994 | ||
2995 | reg = L3_CLS(class - CLASS_CODE_USER_PROG1); | |
2996 | val = nr64(reg); | |
2997 | val &= ~(L3_CLS_IPVER | L3_CLS_PID | | |
2998 | L3_CLS_TOSMASK | L3_CLS_TOS); | |
2999 | if (ipv6) | |
3000 | val |= L3_CLS_IPVER; | |
3001 | val |= (protocol_id << L3_CLS_PID_SHIFT); | |
3002 | val |= (tos_mask << L3_CLS_TOSMASK_SHIFT); | |
3003 | val |= (tos_val << L3_CLS_TOS_SHIFT); | |
3004 | nw64(reg, val); | |
3005 | ||
3006 | return 0; | |
3007 | } | |
a3138df9 DM |
3008 | |
3009 | static int tcam_early_init(struct niu *np) | |
3010 | { | |
3011 | unsigned long i; | |
3012 | int err; | |
3013 | ||
3014 | tcam_enable(np, 0); | |
3015 | tcam_set_lat_and_ratio(np, | |
3016 | DEFAULT_TCAM_LATENCY, | |
3017 | DEFAULT_TCAM_ACCESS_RATIO); | |
3018 | for (i = CLASS_CODE_ETHERTYPE1; i <= CLASS_CODE_ETHERTYPE2; i++) { | |
3019 | err = tcam_user_eth_class_enable(np, i, 0); | |
3020 | if (err) | |
3021 | return err; | |
3022 | } | |
3023 | for (i = CLASS_CODE_USER_PROG1; i <= CLASS_CODE_USER_PROG4; i++) { | |
3024 | err = tcam_user_ip_class_enable(np, i, 0); | |
3025 | if (err) | |
3026 | return err; | |
3027 | } | |
3028 | ||
3029 | return 0; | |
3030 | } | |
3031 | ||
3032 | static int tcam_flush_all(struct niu *np) | |
3033 | { | |
3034 | unsigned long i; | |
3035 | ||
3036 | for (i = 0; i < np->parent->tcam_num_entries; i++) { | |
3037 | int err = tcam_flush(np, i); | |
3038 | if (err) | |
3039 | return err; | |
3040 | } | |
3041 | return 0; | |
3042 | } | |
3043 | ||
3044 | static u64 hash_addr_regval(unsigned long index, unsigned long num_entries) | |
3045 | { | |
3046 | return ((u64)index | (num_entries == 1 ? | |
3047 | HASH_TBL_ADDR_AUTOINC : 0)); | |
3048 | } | |
3049 | ||
3050 | #if 0 | |
3051 | static int hash_read(struct niu *np, unsigned long partition, | |
3052 | unsigned long index, unsigned long num_entries, | |
3053 | u64 *data) | |
3054 | { | |
3055 | u64 val = hash_addr_regval(index, num_entries); | |
3056 | unsigned long i; | |
3057 | ||
3058 | if (partition >= FCRAM_NUM_PARTITIONS || | |
3059 | index + num_entries > FCRAM_SIZE) | |
3060 | return -EINVAL; | |
3061 | ||
3062 | nw64(HASH_TBL_ADDR(partition), val); | |
3063 | for (i = 0; i < num_entries; i++) | |
3064 | data[i] = nr64(HASH_TBL_DATA(partition)); | |
3065 | ||
3066 | return 0; | |
3067 | } | |
3068 | #endif | |
3069 | ||
3070 | static int hash_write(struct niu *np, unsigned long partition, | |
3071 | unsigned long index, unsigned long num_entries, | |
3072 | u64 *data) | |
3073 | { | |
3074 | u64 val = hash_addr_regval(index, num_entries); | |
3075 | unsigned long i; | |
3076 | ||
3077 | if (partition >= FCRAM_NUM_PARTITIONS || | |
3078 | index + (num_entries * 8) > FCRAM_SIZE) | |
3079 | return -EINVAL; | |
3080 | ||
3081 | nw64(HASH_TBL_ADDR(partition), val); | |
3082 | for (i = 0; i < num_entries; i++) | |
3083 | nw64(HASH_TBL_DATA(partition), data[i]); | |
3084 | ||
3085 | return 0; | |
3086 | } | |
3087 | ||
3088 | static void fflp_reset(struct niu *np) | |
3089 | { | |
3090 | u64 val; | |
3091 | ||
3092 | nw64(FFLP_CFG_1, FFLP_CFG_1_PIO_FIO_RST); | |
3093 | udelay(10); | |
3094 | nw64(FFLP_CFG_1, 0); | |
3095 | ||
3096 | val = FFLP_CFG_1_FCRAMOUTDR_NORMAL | FFLP_CFG_1_FFLPINITDONE; | |
3097 | nw64(FFLP_CFG_1, val); | |
3098 | } | |
3099 | ||
3100 | static void fflp_set_timings(struct niu *np) | |
3101 | { | |
3102 | u64 val = nr64(FFLP_CFG_1); | |
3103 | ||
3104 | val &= ~FFLP_CFG_1_FFLPINITDONE; | |
3105 | val |= (DEFAULT_FCRAMRATIO << FFLP_CFG_1_FCRAMRATIO_SHIFT); | |
3106 | nw64(FFLP_CFG_1, val); | |
3107 | ||
3108 | val = nr64(FFLP_CFG_1); | |
3109 | val |= FFLP_CFG_1_FFLPINITDONE; | |
3110 | nw64(FFLP_CFG_1, val); | |
3111 | ||
3112 | val = nr64(FCRAM_REF_TMR); | |
3113 | val &= ~(FCRAM_REF_TMR_MAX | FCRAM_REF_TMR_MIN); | |
3114 | val |= (DEFAULT_FCRAM_REFRESH_MAX << FCRAM_REF_TMR_MAX_SHIFT); | |
3115 | val |= (DEFAULT_FCRAM_REFRESH_MIN << FCRAM_REF_TMR_MIN_SHIFT); | |
3116 | nw64(FCRAM_REF_TMR, val); | |
3117 | } | |
3118 | ||
3119 | static int fflp_set_partition(struct niu *np, u64 partition, | |
3120 | u64 mask, u64 base, int enable) | |
3121 | { | |
3122 | unsigned long reg; | |
3123 | u64 val; | |
3124 | ||
3125 | if (partition >= FCRAM_NUM_PARTITIONS || | |
3126 | (mask & ~(u64)0x1f) != 0 || | |
3127 | (base & ~(u64)0x1f) != 0) | |
3128 | return -EINVAL; | |
3129 | ||
3130 | reg = FLW_PRT_SEL(partition); | |
3131 | ||
3132 | val = nr64(reg); | |
3133 | val &= ~(FLW_PRT_SEL_EXT | FLW_PRT_SEL_MASK | FLW_PRT_SEL_BASE); | |
3134 | val |= (mask << FLW_PRT_SEL_MASK_SHIFT); | |
3135 | val |= (base << FLW_PRT_SEL_BASE_SHIFT); | |
3136 | if (enable) | |
3137 | val |= FLW_PRT_SEL_EXT; | |
3138 | nw64(reg, val); | |
3139 | ||
3140 | return 0; | |
3141 | } | |
3142 | ||
3143 | static int fflp_disable_all_partitions(struct niu *np) | |
3144 | { | |
3145 | unsigned long i; | |
3146 | ||
3147 | for (i = 0; i < FCRAM_NUM_PARTITIONS; i++) { | |
3148 | int err = fflp_set_partition(np, 0, 0, 0, 0); | |
3149 | if (err) | |
3150 | return err; | |
3151 | } | |
3152 | return 0; | |
3153 | } | |
3154 | ||
3155 | static void fflp_llcsnap_enable(struct niu *np, int on) | |
3156 | { | |
3157 | u64 val = nr64(FFLP_CFG_1); | |
3158 | ||
3159 | if (on) | |
3160 | val |= FFLP_CFG_1_LLCSNAP; | |
3161 | else | |
3162 | val &= ~FFLP_CFG_1_LLCSNAP; | |
3163 | nw64(FFLP_CFG_1, val); | |
3164 | } | |
3165 | ||
3166 | static void fflp_errors_enable(struct niu *np, int on) | |
3167 | { | |
3168 | u64 val = nr64(FFLP_CFG_1); | |
3169 | ||
3170 | if (on) | |
3171 | val &= ~FFLP_CFG_1_ERRORDIS; | |
3172 | else | |
3173 | val |= FFLP_CFG_1_ERRORDIS; | |
3174 | nw64(FFLP_CFG_1, val); | |
3175 | } | |
3176 | ||
3177 | static int fflp_hash_clear(struct niu *np) | |
3178 | { | |
3179 | struct fcram_hash_ipv4 ent; | |
3180 | unsigned long i; | |
3181 | ||
3182 | /* IPV4 hash entry with valid bit clear, rest is don't care. */ | |
3183 | memset(&ent, 0, sizeof(ent)); | |
3184 | ent.header = HASH_HEADER_EXT; | |
3185 | ||
3186 | for (i = 0; i < FCRAM_SIZE; i += sizeof(ent)) { | |
3187 | int err = hash_write(np, 0, i, 1, (u64 *) &ent); | |
3188 | if (err) | |
3189 | return err; | |
3190 | } | |
3191 | return 0; | |
3192 | } | |
3193 | ||
3194 | static int fflp_early_init(struct niu *np) | |
3195 | { | |
3196 | struct niu_parent *parent; | |
3197 | unsigned long flags; | |
3198 | int err; | |
3199 | ||
3200 | niu_lock_parent(np, flags); | |
3201 | ||
3202 | parent = np->parent; | |
3203 | err = 0; | |
3204 | if (!(parent->flags & PARENT_FLGS_CLS_HWINIT)) { | |
a3138df9 DM |
3205 | if (np->parent->plat_type != PLAT_TYPE_NIU) { |
3206 | fflp_reset(np); | |
3207 | fflp_set_timings(np); | |
3208 | err = fflp_disable_all_partitions(np); | |
3209 | if (err) { | |
f10a1f2e JP |
3210 | netif_printk(np, probe, KERN_DEBUG, np->dev, |
3211 | "fflp_disable_all_partitions failed, err=%d\n", | |
3212 | err); | |
a3138df9 DM |
3213 | goto out; |
3214 | } | |
3215 | } | |
3216 | ||
3217 | err = tcam_early_init(np); | |
3218 | if (err) { | |
f10a1f2e JP |
3219 | netif_printk(np, probe, KERN_DEBUG, np->dev, |
3220 | "tcam_early_init failed, err=%d\n", err); | |
a3138df9 DM |
3221 | goto out; |
3222 | } | |
3223 | fflp_llcsnap_enable(np, 1); | |
3224 | fflp_errors_enable(np, 0); | |
3225 | nw64(H1POLY, 0); | |
3226 | nw64(H2POLY, 0); | |
3227 | ||
3228 | err = tcam_flush_all(np); | |
3229 | if (err) { | |
f10a1f2e JP |
3230 | netif_printk(np, probe, KERN_DEBUG, np->dev, |
3231 | "tcam_flush_all failed, err=%d\n", err); | |
a3138df9 DM |
3232 | goto out; |
3233 | } | |
3234 | if (np->parent->plat_type != PLAT_TYPE_NIU) { | |
3235 | err = fflp_hash_clear(np); | |
3236 | if (err) { | |
f10a1f2e JP |
3237 | netif_printk(np, probe, KERN_DEBUG, np->dev, |
3238 | "fflp_hash_clear failed, err=%d\n", | |
3239 | err); | |
a3138df9 DM |
3240 | goto out; |
3241 | } | |
3242 | } | |
3243 | ||
3244 | vlan_tbl_clear(np); | |
3245 | ||
a3138df9 DM |
3246 | parent->flags |= PARENT_FLGS_CLS_HWINIT; |
3247 | } | |
3248 | out: | |
3249 | niu_unlock_parent(np, flags); | |
3250 | return err; | |
3251 | } | |
3252 | ||
3253 | static int niu_set_flow_key(struct niu *np, unsigned long class_code, u64 key) | |
3254 | { | |
3255 | if (class_code < CLASS_CODE_USER_PROG1 || | |
3256 | class_code > CLASS_CODE_SCTP_IPV6) | |
3257 | return -EINVAL; | |
3258 | ||
3259 | nw64(FLOW_KEY(class_code - CLASS_CODE_USER_PROG1), key); | |
3260 | return 0; | |
3261 | } | |
3262 | ||
3263 | static int niu_set_tcam_key(struct niu *np, unsigned long class_code, u64 key) | |
3264 | { | |
3265 | if (class_code < CLASS_CODE_USER_PROG1 || | |
3266 | class_code > CLASS_CODE_SCTP_IPV6) | |
3267 | return -EINVAL; | |
3268 | ||
3269 | nw64(TCAM_KEY(class_code - CLASS_CODE_USER_PROG1), key); | |
3270 | return 0; | |
3271 | } | |
3272 | ||
2d96cf8c SB |
3273 | /* Entries for the ports are interleaved in the TCAM */ |
3274 | static u16 tcam_get_index(struct niu *np, u16 idx) | |
3275 | { | |
3276 | /* One entry reserved for IP fragment rule */ | |
3277 | if (idx >= (np->clas.tcam_sz - 1)) | |
3278 | idx = 0; | |
3279 | return (np->clas.tcam_top + ((idx+1) * np->parent->num_ports)); | |
3280 | } | |
3281 | ||
3282 | static u16 tcam_get_size(struct niu *np) | |
3283 | { | |
3284 | /* One entry reserved for IP fragment rule */ | |
3285 | return np->clas.tcam_sz - 1; | |
3286 | } | |
3287 | ||
3288 | static u16 tcam_get_valid_entry_cnt(struct niu *np) | |
3289 | { | |
3290 | /* One entry reserved for IP fragment rule */ | |
3291 | return np->clas.tcam_valid_entries - 1; | |
3292 | } | |
3293 | ||
a3138df9 DM |
3294 | static void niu_rx_skb_append(struct sk_buff *skb, struct page *page, |
3295 | u32 offset, u32 size) | |
3296 | { | |
3297 | int i = skb_shinfo(skb)->nr_frags; | |
3298 | skb_frag_t *frag = &skb_shinfo(skb)->frags[i]; | |
3299 | ||
3300 | frag->page = page; | |
3301 | frag->page_offset = offset; | |
3302 | frag->size = size; | |
3303 | ||
3304 | skb->len += size; | |
3305 | skb->data_len += size; | |
3306 | skb->truesize += size; | |
3307 | ||
3308 | skb_shinfo(skb)->nr_frags = i + 1; | |
3309 | } | |
3310 | ||
3311 | static unsigned int niu_hash_rxaddr(struct rx_ring_info *rp, u64 a) | |
3312 | { | |
3313 | a >>= PAGE_SHIFT; | |
3314 | a ^= (a >> ilog2(MAX_RBR_RING_SIZE)); | |
3315 | ||
3316 | return (a & (MAX_RBR_RING_SIZE - 1)); | |
3317 | } | |
3318 | ||
3319 | static struct page *niu_find_rxpage(struct rx_ring_info *rp, u64 addr, | |
3320 | struct page ***link) | |
3321 | { | |
3322 | unsigned int h = niu_hash_rxaddr(rp, addr); | |
3323 | struct page *p, **pp; | |
3324 | ||
3325 | addr &= PAGE_MASK; | |
3326 | pp = &rp->rxhash[h]; | |
3327 | for (; (p = *pp) != NULL; pp = (struct page **) &p->mapping) { | |
3328 | if (p->index == addr) { | |
3329 | *link = pp; | |
a0387169 | 3330 | goto found; |
a3138df9 DM |
3331 | } |
3332 | } | |
a0387169 | 3333 | BUG(); |
a3138df9 | 3334 | |
a0387169 | 3335 | found: |
a3138df9 DM |
3336 | return p; |
3337 | } | |
3338 | ||
3339 | static void niu_hash_page(struct rx_ring_info *rp, struct page *page, u64 base) | |
3340 | { | |
3341 | unsigned int h = niu_hash_rxaddr(rp, base); | |
3342 | ||
3343 | page->index = base; | |
3344 | page->mapping = (struct address_space *) rp->rxhash[h]; | |
3345 | rp->rxhash[h] = page; | |
3346 | } | |
3347 | ||
3348 | static int niu_rbr_add_page(struct niu *np, struct rx_ring_info *rp, | |
3349 | gfp_t mask, int start_index) | |
3350 | { | |
3351 | struct page *page; | |
3352 | u64 addr; | |
3353 | int i; | |
3354 | ||
3355 | page = alloc_page(mask); | |
3356 | if (!page) | |
3357 | return -ENOMEM; | |
3358 | ||
3359 | addr = np->ops->map_page(np->device, page, 0, | |
3360 | PAGE_SIZE, DMA_FROM_DEVICE); | |
3361 | ||
3362 | niu_hash_page(rp, page, addr); | |
3363 | if (rp->rbr_blocks_per_page > 1) | |
3364 | atomic_add(rp->rbr_blocks_per_page - 1, | |
3365 | &compound_head(page)->_count); | |
3366 | ||
3367 | for (i = 0; i < rp->rbr_blocks_per_page; i++) { | |
3368 | __le32 *rbr = &rp->rbr[start_index + i]; | |
3369 | ||
3370 | *rbr = cpu_to_le32(addr >> RBR_DESCR_ADDR_SHIFT); | |
3371 | addr += rp->rbr_block_size; | |
3372 | } | |
3373 | ||
3374 | return 0; | |
3375 | } | |
3376 | ||
3377 | static void niu_rbr_refill(struct niu *np, struct rx_ring_info *rp, gfp_t mask) | |
3378 | { | |
3379 | int index = rp->rbr_index; | |
3380 | ||
3381 | rp->rbr_pending++; | |
3382 | if ((rp->rbr_pending % rp->rbr_blocks_per_page) == 0) { | |
3383 | int err = niu_rbr_add_page(np, rp, mask, index); | |
3384 | ||
3385 | if (unlikely(err)) { | |
3386 | rp->rbr_pending--; | |
3387 | return; | |
3388 | } | |
3389 | ||
3390 | rp->rbr_index += rp->rbr_blocks_per_page; | |
3391 | BUG_ON(rp->rbr_index > rp->rbr_table_size); | |
3392 | if (rp->rbr_index == rp->rbr_table_size) | |
3393 | rp->rbr_index = 0; | |
3394 | ||
3395 | if (rp->rbr_pending >= rp->rbr_kick_thresh) { | |
3396 | nw64(RBR_KICK(rp->rx_channel), rp->rbr_pending); | |
3397 | rp->rbr_pending = 0; | |
3398 | } | |
3399 | } | |
3400 | } | |
3401 | ||
3402 | static int niu_rx_pkt_ignore(struct niu *np, struct rx_ring_info *rp) | |
3403 | { | |
3404 | unsigned int index = rp->rcr_index; | |
3405 | int num_rcr = 0; | |
3406 | ||
3407 | rp->rx_dropped++; | |
3408 | while (1) { | |
3409 | struct page *page, **link; | |
3410 | u64 addr, val; | |
3411 | u32 rcr_size; | |
3412 | ||
3413 | num_rcr++; | |
3414 | ||
3415 | val = le64_to_cpup(&rp->rcr[index]); | |
3416 | addr = (val & RCR_ENTRY_PKT_BUF_ADDR) << | |
3417 | RCR_ENTRY_PKT_BUF_ADDR_SHIFT; | |
3418 | page = niu_find_rxpage(rp, addr, &link); | |
3419 | ||
3420 | rcr_size = rp->rbr_sizes[(val & RCR_ENTRY_PKTBUFSZ) >> | |
3421 | RCR_ENTRY_PKTBUFSZ_SHIFT]; | |
3422 | if ((page->index + PAGE_SIZE) - rcr_size == addr) { | |
3423 | *link = (struct page *) page->mapping; | |
3424 | np->ops->unmap_page(np->device, page->index, | |
3425 | PAGE_SIZE, DMA_FROM_DEVICE); | |
3426 | page->index = 0; | |
3427 | page->mapping = NULL; | |
3428 | __free_page(page); | |
3429 | rp->rbr_refill_pending++; | |
3430 | } | |
3431 | ||
3432 | index = NEXT_RCR(rp, index); | |
3433 | if (!(val & RCR_ENTRY_MULTI)) | |
3434 | break; | |
3435 | ||
3436 | } | |
3437 | rp->rcr_index = index; | |
3438 | ||
3439 | return num_rcr; | |
3440 | } | |
3441 | ||
4099e012 DM |
3442 | static int niu_process_rx_pkt(struct napi_struct *napi, struct niu *np, |
3443 | struct rx_ring_info *rp) | |
a3138df9 DM |
3444 | { |
3445 | unsigned int index = rp->rcr_index; | |
3cfa856d | 3446 | struct rx_pkt_hdr1 *rh; |
a3138df9 DM |
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 | ||
a3138df9 DM |
3480 | ptype = (val >> RCR_ENTRY_PKT_TYPE_SHIFT); |
3481 | if ((ptype == RCR_PKT_TYPE_TCP || | |
3482 | ptype == RCR_PKT_TYPE_UDP) && | |
3483 | !(val & (RCR_ENTRY_NOPORT | | |
3484 | RCR_ENTRY_ERROR))) | |
3485 | skb->ip_summed = CHECKSUM_UNNECESSARY; | |
3486 | else | |
3487 | skb->ip_summed = CHECKSUM_NONE; | |
3cfa856d | 3488 | } else if (!(val & RCR_ENTRY_MULTI)) |
a3138df9 DM |
3489 | append_size = len - skb->len; |
3490 | ||
3491 | niu_rx_skb_append(skb, page, off, append_size); | |
3492 | if ((page->index + rp->rbr_block_size) - rcr_size == addr) { | |
3493 | *link = (struct page *) page->mapping; | |
3494 | np->ops->unmap_page(np->device, page->index, | |
3495 | PAGE_SIZE, DMA_FROM_DEVICE); | |
3496 | page->index = 0; | |
3497 | page->mapping = NULL; | |
3498 | rp->rbr_refill_pending++; | |
3499 | } else | |
3500 | get_page(page); | |
3501 | ||
3502 | index = NEXT_RCR(rp, index); | |
3503 | if (!(val & RCR_ENTRY_MULTI)) | |
3504 | break; | |
3505 | ||
3506 | } | |
3507 | rp->rcr_index = index; | |
3508 | ||
3cfa856d DM |
3509 | len += sizeof(*rh); |
3510 | len = min_t(int, len, sizeof(*rh) + VLAN_ETH_HLEN); | |
3511 | __pskb_pull_tail(skb, len); | |
3512 | ||
3513 | rh = (struct rx_pkt_hdr1 *) skb->data; | |
3514 | if (np->dev->features & NETIF_F_RXHASH) | |
3515 | skb->rxhash = ((u32)rh->hashval2_0 << 24 | | |
3516 | (u32)rh->hashval2_1 << 16 | | |
3517 | (u32)rh->hashval1_1 << 8 | | |
3518 | (u32)rh->hashval1_2 << 0); | |
3519 | skb_pull(skb, sizeof(*rh)); | |
a3138df9 DM |
3520 | |
3521 | rp->rx_packets++; | |
3522 | rp->rx_bytes += skb->len; | |
3523 | ||
3524 | skb->protocol = eth_type_trans(skb, np->dev); | |
0c8dfc83 | 3525 | skb_record_rx_queue(skb, rp->rx_channel); |
4099e012 | 3526 | napi_gro_receive(napi, skb); |
a3138df9 DM |
3527 | |
3528 | return num_rcr; | |
3529 | } | |
3530 | ||
3531 | static int niu_rbr_fill(struct niu *np, struct rx_ring_info *rp, gfp_t mask) | |
3532 | { | |
3533 | int blocks_per_page = rp->rbr_blocks_per_page; | |
3534 | int err, index = rp->rbr_index; | |
3535 | ||
3536 | err = 0; | |
3537 | while (index < (rp->rbr_table_size - blocks_per_page)) { | |
3538 | err = niu_rbr_add_page(np, rp, mask, index); | |
3539 | if (err) | |
3540 | break; | |
3541 | ||
3542 | index += blocks_per_page; | |
3543 | } | |
3544 | ||
3545 | rp->rbr_index = index; | |
3546 | return err; | |
3547 | } | |
3548 | ||
3549 | static void niu_rbr_free(struct niu *np, struct rx_ring_info *rp) | |
3550 | { | |
3551 | int i; | |
3552 | ||
3553 | for (i = 0; i < MAX_RBR_RING_SIZE; i++) { | |
3554 | struct page *page; | |
3555 | ||
3556 | page = rp->rxhash[i]; | |
3557 | while (page) { | |
3558 | struct page *next = (struct page *) page->mapping; | |
3559 | u64 base = page->index; | |
3560 | ||
3561 | np->ops->unmap_page(np->device, base, PAGE_SIZE, | |
3562 | DMA_FROM_DEVICE); | |
3563 | page->index = 0; | |
3564 | page->mapping = NULL; | |
3565 | ||
3566 | __free_page(page); | |
3567 | ||
3568 | page = next; | |
3569 | } | |
3570 | } | |
3571 | ||
3572 | for (i = 0; i < rp->rbr_table_size; i++) | |
3573 | rp->rbr[i] = cpu_to_le32(0); | |
3574 | rp->rbr_index = 0; | |
3575 | } | |
3576 | ||
3577 | static int release_tx_packet(struct niu *np, struct tx_ring_info *rp, int idx) | |
3578 | { | |
3579 | struct tx_buff_info *tb = &rp->tx_buffs[idx]; | |
3580 | struct sk_buff *skb = tb->skb; | |
3581 | struct tx_pkt_hdr *tp; | |
3582 | u64 tx_flags; | |
3583 | int i, len; | |
3584 | ||
3585 | tp = (struct tx_pkt_hdr *) skb->data; | |
3586 | tx_flags = le64_to_cpup(&tp->flags); | |
3587 | ||
3588 | rp->tx_packets++; | |
3589 | rp->tx_bytes += (((tx_flags & TXHDR_LEN) >> TXHDR_LEN_SHIFT) - | |
3590 | ((tx_flags & TXHDR_PAD) / 2)); | |
3591 | ||
3592 | len = skb_headlen(skb); | |
3593 | np->ops->unmap_single(np->device, tb->mapping, | |
3594 | len, DMA_TO_DEVICE); | |
3595 | ||
3596 | if (le64_to_cpu(rp->descr[idx]) & TX_DESC_MARK) | |
3597 | rp->mark_pending--; | |
3598 | ||
3599 | tb->skb = NULL; | |
3600 | do { | |
3601 | idx = NEXT_TX(rp, idx); | |
3602 | len -= MAX_TX_DESC_LEN; | |
3603 | } while (len > 0); | |
3604 | ||
3605 | for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) { | |
3606 | tb = &rp->tx_buffs[idx]; | |
3607 | BUG_ON(tb->skb != NULL); | |
3608 | np->ops->unmap_page(np->device, tb->mapping, | |
3609 | skb_shinfo(skb)->frags[i].size, | |
3610 | DMA_TO_DEVICE); | |
3611 | idx = NEXT_TX(rp, idx); | |
3612 | } | |
3613 | ||
3614 | dev_kfree_skb(skb); | |
3615 | ||
3616 | return idx; | |
3617 | } | |
3618 | ||
3619 | #define NIU_TX_WAKEUP_THRESH(rp) ((rp)->pending / 4) | |
3620 | ||
3621 | static void niu_tx_work(struct niu *np, struct tx_ring_info *rp) | |
3622 | { | |
b4c21639 | 3623 | struct netdev_queue *txq; |
a3138df9 | 3624 | u16 pkt_cnt, tmp; |
b4c21639 | 3625 | int cons, index; |
a3138df9 DM |
3626 | u64 cs; |
3627 | ||
b4c21639 DM |
3628 | index = (rp - np->tx_rings); |
3629 | txq = netdev_get_tx_queue(np->dev, index); | |
3630 | ||
a3138df9 DM |
3631 | cs = rp->tx_cs; |
3632 | if (unlikely(!(cs & (TX_CS_MK | TX_CS_MMK)))) | |
3633 | goto out; | |
3634 | ||
3635 | tmp = pkt_cnt = (cs & TX_CS_PKT_CNT) >> TX_CS_PKT_CNT_SHIFT; | |
3636 | pkt_cnt = (pkt_cnt - rp->last_pkt_cnt) & | |
3637 | (TX_CS_PKT_CNT >> TX_CS_PKT_CNT_SHIFT); | |
3638 | ||
3639 | rp->last_pkt_cnt = tmp; | |
3640 | ||
3641 | cons = rp->cons; | |
3642 | ||
f10a1f2e JP |
3643 | netif_printk(np, tx_done, KERN_DEBUG, np->dev, |
3644 | "%s() pkt_cnt[%u] cons[%d]\n", __func__, pkt_cnt, cons); | |
a3138df9 DM |
3645 | |
3646 | while (pkt_cnt--) | |
3647 | cons = release_tx_packet(np, rp, cons); | |
3648 | ||
3649 | rp->cons = cons; | |
3650 | smp_mb(); | |
3651 | ||
3652 | out: | |
b4c21639 | 3653 | if (unlikely(netif_tx_queue_stopped(txq) && |
a3138df9 | 3654 | (niu_tx_avail(rp) > NIU_TX_WAKEUP_THRESH(rp)))) { |
b4c21639 DM |
3655 | __netif_tx_lock(txq, smp_processor_id()); |
3656 | if (netif_tx_queue_stopped(txq) && | |
a3138df9 | 3657 | (niu_tx_avail(rp) > NIU_TX_WAKEUP_THRESH(rp))) |
b4c21639 DM |
3658 | netif_tx_wake_queue(txq); |
3659 | __netif_tx_unlock(txq); | |
a3138df9 DM |
3660 | } |
3661 | } | |
3662 | ||
b8a606b8 JDB |
3663 | static inline void niu_sync_rx_discard_stats(struct niu *np, |
3664 | struct rx_ring_info *rp, | |
3665 | const int limit) | |
3666 | { | |
3667 | /* This elaborate scheme is needed for reading the RX discard | |
3668 | * counters, as they are only 16-bit and can overflow quickly, | |
3669 | * and because the overflow indication bit is not usable as | |
3670 | * the counter value does not wrap, but remains at max value | |
3671 | * 0xFFFF. | |
3672 | * | |
3673 | * In theory and in practice counters can be lost in between | |
3674 | * reading nr64() and clearing the counter nw64(). For this | |
3675 | * reason, the number of counter clearings nw64() is | |
3676 | * limited/reduced though the limit parameter. | |
3677 | */ | |
3678 | int rx_channel = rp->rx_channel; | |
3679 | u32 misc, wred; | |
3680 | ||
3681 | /* RXMISC (Receive Miscellaneous Discard Count), covers the | |
3682 | * following discard events: IPP (Input Port Process), | |
3683 | * FFLP/TCAM, Full RCR (Receive Completion Ring) RBR (Receive | |
3684 | * Block Ring) prefetch buffer is empty. | |
3685 | */ | |
3686 | misc = nr64(RXMISC(rx_channel)); | |
3687 | if (unlikely((misc & RXMISC_COUNT) > limit)) { | |
3688 | nw64(RXMISC(rx_channel), 0); | |
3689 | rp->rx_errors += misc & RXMISC_COUNT; | |
3690 | ||
3691 | if (unlikely(misc & RXMISC_OFLOW)) | |
f10a1f2e JP |
3692 | dev_err(np->device, "rx-%d: Counter overflow RXMISC discard\n", |
3693 | rx_channel); | |
d231776f | 3694 | |
f10a1f2e JP |
3695 | netif_printk(np, rx_err, KERN_DEBUG, np->dev, |
3696 | "rx-%d: MISC drop=%u over=%u\n", | |
3697 | rx_channel, misc, misc-limit); | |
b8a606b8 JDB |
3698 | } |
3699 | ||
3700 | /* WRED (Weighted Random Early Discard) by hardware */ | |
3701 | wred = nr64(RED_DIS_CNT(rx_channel)); | |
3702 | if (unlikely((wred & RED_DIS_CNT_COUNT) > limit)) { | |
3703 | nw64(RED_DIS_CNT(rx_channel), 0); | |
3704 | rp->rx_dropped += wred & RED_DIS_CNT_COUNT; | |
3705 | ||
3706 | if (unlikely(wred & RED_DIS_CNT_OFLOW)) | |
f10a1f2e | 3707 | dev_err(np->device, "rx-%d: Counter overflow WRED discard\n", rx_channel); |
d231776f | 3708 | |
f10a1f2e JP |
3709 | netif_printk(np, rx_err, KERN_DEBUG, np->dev, |
3710 | "rx-%d: WRED drop=%u over=%u\n", | |
3711 | rx_channel, wred, wred-limit); | |
b8a606b8 JDB |
3712 | } |
3713 | } | |
3714 | ||
4099e012 DM |
3715 | static int niu_rx_work(struct napi_struct *napi, struct niu *np, |
3716 | struct rx_ring_info *rp, int budget) | |
a3138df9 DM |
3717 | { |
3718 | int qlen, rcr_done = 0, work_done = 0; | |
3719 | struct rxdma_mailbox *mbox = rp->mbox; | |
3720 | u64 stat; | |
3721 | ||
3722 | #if 1 | |
3723 | stat = nr64(RX_DMA_CTL_STAT(rp->rx_channel)); | |
3724 | qlen = nr64(RCRSTAT_A(rp->rx_channel)) & RCRSTAT_A_QLEN; | |
3725 | #else | |
3726 | stat = le64_to_cpup(&mbox->rx_dma_ctl_stat); | |
3727 | qlen = (le64_to_cpup(&mbox->rcrstat_a) & RCRSTAT_A_QLEN); | |
3728 | #endif | |
3729 | mbox->rx_dma_ctl_stat = 0; | |
3730 | mbox->rcrstat_a = 0; | |
3731 | ||
f10a1f2e JP |
3732 | netif_printk(np, rx_status, KERN_DEBUG, np->dev, |
3733 | "%s(chan[%d]), stat[%llx] qlen=%d\n", | |
3734 | __func__, rp->rx_channel, (unsigned long long)stat, qlen); | |
a3138df9 DM |
3735 | |
3736 | rcr_done = work_done = 0; | |
3737 | qlen = min(qlen, budget); | |
3738 | while (work_done < qlen) { | |
4099e012 | 3739 | rcr_done += niu_process_rx_pkt(napi, np, rp); |
a3138df9 DM |
3740 | work_done++; |
3741 | } | |
3742 | ||
3743 | if (rp->rbr_refill_pending >= rp->rbr_kick_thresh) { | |
3744 | unsigned int i; | |
3745 | ||
3746 | for (i = 0; i < rp->rbr_refill_pending; i++) | |
3747 | niu_rbr_refill(np, rp, GFP_ATOMIC); | |
3748 | rp->rbr_refill_pending = 0; | |
3749 | } | |
3750 | ||
3751 | stat = (RX_DMA_CTL_STAT_MEX | | |
3752 | ((u64)work_done << RX_DMA_CTL_STAT_PKTREAD_SHIFT) | | |
3753 | ((u64)rcr_done << RX_DMA_CTL_STAT_PTRREAD_SHIFT)); | |
3754 | ||
3755 | nw64(RX_DMA_CTL_STAT(rp->rx_channel), stat); | |
3756 | ||
e98def1f JDB |
3757 | /* Only sync discards stats when qlen indicate potential for drops */ |
3758 | if (qlen > 10) | |
3759 | niu_sync_rx_discard_stats(np, rp, 0x7FFF); | |
b8a606b8 | 3760 | |
a3138df9 DM |
3761 | return work_done; |
3762 | } | |
3763 | ||
3764 | static int niu_poll_core(struct niu *np, struct niu_ldg *lp, int budget) | |
3765 | { | |
3766 | u64 v0 = lp->v0; | |
3767 | u32 tx_vec = (v0 >> 32); | |
3768 | u32 rx_vec = (v0 & 0xffffffff); | |
3769 | int i, work_done = 0; | |
3770 | ||
f10a1f2e JP |
3771 | netif_printk(np, intr, KERN_DEBUG, np->dev, |
3772 | "%s() v0[%016llx]\n", __func__, (unsigned long long)v0); | |
a3138df9 DM |
3773 | |
3774 | for (i = 0; i < np->num_tx_rings; i++) { | |
3775 | struct tx_ring_info *rp = &np->tx_rings[i]; | |
3776 | if (tx_vec & (1 << rp->tx_channel)) | |
3777 | niu_tx_work(np, rp); | |
3778 | nw64(LD_IM0(LDN_TXDMA(rp->tx_channel)), 0); | |
3779 | } | |
3780 | ||
3781 | for (i = 0; i < np->num_rx_rings; i++) { | |
3782 | struct rx_ring_info *rp = &np->rx_rings[i]; | |
3783 | ||
3784 | if (rx_vec & (1 << rp->rx_channel)) { | |
3785 | int this_work_done; | |
3786 | ||
4099e012 | 3787 | this_work_done = niu_rx_work(&lp->napi, np, rp, |
a3138df9 DM |
3788 | budget); |
3789 | ||
3790 | budget -= this_work_done; | |
3791 | work_done += this_work_done; | |
3792 | } | |
3793 | nw64(LD_IM0(LDN_RXDMA(rp->rx_channel)), 0); | |
3794 | } | |
3795 | ||
3796 | return work_done; | |
3797 | } | |
3798 | ||
3799 | static int niu_poll(struct napi_struct *napi, int budget) | |
3800 | { | |
3801 | struct niu_ldg *lp = container_of(napi, struct niu_ldg, napi); | |
3802 | struct niu *np = lp->np; | |
3803 | int work_done; | |
3804 | ||
3805 | work_done = niu_poll_core(np, lp, budget); | |
3806 | ||
3807 | if (work_done < budget) { | |
288379f0 | 3808 | napi_complete(napi); |
a3138df9 DM |
3809 | niu_ldg_rearm(np, lp, 1); |
3810 | } | |
3811 | return work_done; | |
3812 | } | |
3813 | ||
3814 | static void niu_log_rxchan_errors(struct niu *np, struct rx_ring_info *rp, | |
3815 | u64 stat) | |
3816 | { | |
f10a1f2e | 3817 | netdev_err(np->dev, "RX channel %u errors ( ", rp->rx_channel); |
a3138df9 DM |
3818 | |
3819 | if (stat & RX_DMA_CTL_STAT_RBR_TMOUT) | |
f10a1f2e | 3820 | pr_cont("RBR_TMOUT "); |
a3138df9 | 3821 | if (stat & RX_DMA_CTL_STAT_RSP_CNT_ERR) |
f10a1f2e | 3822 | pr_cont("RSP_CNT "); |
a3138df9 | 3823 | if (stat & RX_DMA_CTL_STAT_BYTE_EN_BUS) |
f10a1f2e | 3824 | pr_cont("BYTE_EN_BUS "); |
a3138df9 | 3825 | if (stat & RX_DMA_CTL_STAT_RSP_DAT_ERR) |
f10a1f2e | 3826 | pr_cont("RSP_DAT "); |
a3138df9 | 3827 | if (stat & RX_DMA_CTL_STAT_RCR_ACK_ERR) |
f10a1f2e | 3828 | pr_cont("RCR_ACK "); |
a3138df9 | 3829 | if (stat & RX_DMA_CTL_STAT_RCR_SHA_PAR) |
f10a1f2e | 3830 | pr_cont("RCR_SHA_PAR "); |
a3138df9 | 3831 | if (stat & RX_DMA_CTL_STAT_RBR_PRE_PAR) |
f10a1f2e | 3832 | pr_cont("RBR_PRE_PAR "); |
a3138df9 | 3833 | if (stat & RX_DMA_CTL_STAT_CONFIG_ERR) |
f10a1f2e | 3834 | pr_cont("CONFIG "); |
a3138df9 | 3835 | if (stat & RX_DMA_CTL_STAT_RCRINCON) |
f10a1f2e | 3836 | pr_cont("RCRINCON "); |
a3138df9 | 3837 | if (stat & RX_DMA_CTL_STAT_RCRFULL) |
f10a1f2e | 3838 | pr_cont("RCRFULL "); |
a3138df9 | 3839 | if (stat & RX_DMA_CTL_STAT_RBRFULL) |
f10a1f2e | 3840 | pr_cont("RBRFULL "); |
a3138df9 | 3841 | if (stat & RX_DMA_CTL_STAT_RBRLOGPAGE) |
f10a1f2e | 3842 | pr_cont("RBRLOGPAGE "); |
a3138df9 | 3843 | if (stat & RX_DMA_CTL_STAT_CFIGLOGPAGE) |
f10a1f2e | 3844 | pr_cont("CFIGLOGPAGE "); |
a3138df9 | 3845 | if (stat & RX_DMA_CTL_STAT_DC_FIFO_ERR) |
f10a1f2e | 3846 | pr_cont("DC_FIDO "); |
a3138df9 | 3847 | |
f10a1f2e | 3848 | pr_cont(")\n"); |
a3138df9 DM |
3849 | } |
3850 | ||
3851 | static int niu_rx_error(struct niu *np, struct rx_ring_info *rp) | |
3852 | { | |
3853 | u64 stat = nr64(RX_DMA_CTL_STAT(rp->rx_channel)); | |
3854 | int err = 0; | |
3855 | ||
a3138df9 DM |
3856 | |
3857 | if (stat & (RX_DMA_CTL_STAT_CHAN_FATAL | | |
3858 | RX_DMA_CTL_STAT_PORT_FATAL)) | |
3859 | err = -EINVAL; | |
3860 | ||
406f353c | 3861 | if (err) { |
f10a1f2e JP |
3862 | netdev_err(np->dev, "RX channel %u error, stat[%llx]\n", |
3863 | rp->rx_channel, | |
3864 | (unsigned long long) stat); | |
406f353c MW |
3865 | |
3866 | niu_log_rxchan_errors(np, rp, stat); | |
3867 | } | |
3868 | ||
a3138df9 DM |
3869 | nw64(RX_DMA_CTL_STAT(rp->rx_channel), |
3870 | stat & RX_DMA_CTL_WRITE_CLEAR_ERRS); | |
3871 | ||
3872 | return err; | |
3873 | } | |
3874 | ||
3875 | static void niu_log_txchan_errors(struct niu *np, struct tx_ring_info *rp, | |
3876 | u64 cs) | |
3877 | { | |
f10a1f2e | 3878 | netdev_err(np->dev, "TX channel %u errors ( ", rp->tx_channel); |
a3138df9 DM |
3879 | |
3880 | if (cs & TX_CS_MBOX_ERR) | |
f10a1f2e | 3881 | pr_cont("MBOX "); |
a3138df9 | 3882 | if (cs & TX_CS_PKT_SIZE_ERR) |
f10a1f2e | 3883 | pr_cont("PKT_SIZE "); |
a3138df9 | 3884 | if (cs & TX_CS_TX_RING_OFLOW) |
f10a1f2e | 3885 | pr_cont("TX_RING_OFLOW "); |
a3138df9 | 3886 | if (cs & TX_CS_PREF_BUF_PAR_ERR) |
f10a1f2e | 3887 | pr_cont("PREF_BUF_PAR "); |
a3138df9 | 3888 | if (cs & TX_CS_NACK_PREF) |
f10a1f2e | 3889 | pr_cont("NACK_PREF "); |
a3138df9 | 3890 | if (cs & TX_CS_NACK_PKT_RD) |
f10a1f2e | 3891 | pr_cont("NACK_PKT_RD "); |
a3138df9 | 3892 | if (cs & TX_CS_CONF_PART_ERR) |
f10a1f2e | 3893 | pr_cont("CONF_PART "); |
a3138df9 | 3894 | if (cs & TX_CS_PKT_PRT_ERR) |
f10a1f2e | 3895 | pr_cont("PKT_PTR "); |
a3138df9 | 3896 | |
f10a1f2e | 3897 | pr_cont(")\n"); |
a3138df9 DM |
3898 | } |
3899 | ||
3900 | static int niu_tx_error(struct niu *np, struct tx_ring_info *rp) | |
3901 | { | |
3902 | u64 cs, logh, logl; | |
3903 | ||
3904 | cs = nr64(TX_CS(rp->tx_channel)); | |
3905 | logh = nr64(TX_RNG_ERR_LOGH(rp->tx_channel)); | |
3906 | logl = nr64(TX_RNG_ERR_LOGL(rp->tx_channel)); | |
3907 | ||
f10a1f2e JP |
3908 | netdev_err(np->dev, "TX channel %u error, cs[%llx] logh[%llx] logl[%llx]\n", |
3909 | rp->tx_channel, | |
3910 | (unsigned long long)cs, | |
3911 | (unsigned long long)logh, | |
3912 | (unsigned long long)logl); | |
a3138df9 DM |
3913 | |
3914 | niu_log_txchan_errors(np, rp, cs); | |
3915 | ||
3916 | return -ENODEV; | |
3917 | } | |
3918 | ||
3919 | static int niu_mif_interrupt(struct niu *np) | |
3920 | { | |
3921 | u64 mif_status = nr64(MIF_STATUS); | |
3922 | int phy_mdint = 0; | |
3923 | ||
3924 | if (np->flags & NIU_FLAGS_XMAC) { | |
3925 | u64 xrxmac_stat = nr64_mac(XRXMAC_STATUS); | |
3926 | ||
3927 | if (xrxmac_stat & XRXMAC_STATUS_PHY_MDINT) | |
3928 | phy_mdint = 1; | |
3929 | } | |
3930 | ||
f10a1f2e JP |
3931 | netdev_err(np->dev, "MIF interrupt, stat[%llx] phy_mdint(%d)\n", |
3932 | (unsigned long long)mif_status, phy_mdint); | |
a3138df9 DM |
3933 | |
3934 | return -ENODEV; | |
3935 | } | |
3936 | ||
3937 | static void niu_xmac_interrupt(struct niu *np) | |
3938 | { | |
3939 | struct niu_xmac_stats *mp = &np->mac_stats.xmac; | |
3940 | u64 val; | |
3941 | ||
3942 | val = nr64_mac(XTXMAC_STATUS); | |
3943 | if (val & XTXMAC_STATUS_FRAME_CNT_EXP) | |
3944 | mp->tx_frames += TXMAC_FRM_CNT_COUNT; | |
3945 | if (val & XTXMAC_STATUS_BYTE_CNT_EXP) | |
3946 | mp->tx_bytes += TXMAC_BYTE_CNT_COUNT; | |
3947 | if (val & XTXMAC_STATUS_TXFIFO_XFR_ERR) | |
3948 | mp->tx_fifo_errors++; | |
3949 | if (val & XTXMAC_STATUS_TXMAC_OFLOW) | |
3950 | mp->tx_overflow_errors++; | |
3951 | if (val & XTXMAC_STATUS_MAX_PSIZE_ERR) | |
3952 | mp->tx_max_pkt_size_errors++; | |
3953 | if (val & XTXMAC_STATUS_TXMAC_UFLOW) | |
3954 | mp->tx_underflow_errors++; | |
3955 | ||
3956 | val = nr64_mac(XRXMAC_STATUS); | |
3957 | if (val & XRXMAC_STATUS_LCL_FLT_STATUS) | |
3958 | mp->rx_local_faults++; | |
3959 | if (val & XRXMAC_STATUS_RFLT_DET) | |
3960 | mp->rx_remote_faults++; | |
3961 | if (val & XRXMAC_STATUS_LFLT_CNT_EXP) | |
3962 | mp->rx_link_faults += LINK_FAULT_CNT_COUNT; | |
3963 | if (val & XRXMAC_STATUS_ALIGNERR_CNT_EXP) | |
3964 | mp->rx_align_errors += RXMAC_ALIGN_ERR_CNT_COUNT; | |
3965 | if (val & XRXMAC_STATUS_RXFRAG_CNT_EXP) | |
3966 | mp->rx_frags += RXMAC_FRAG_CNT_COUNT; | |
3967 | if (val & XRXMAC_STATUS_RXMULTF_CNT_EXP) | |
3968 | mp->rx_mcasts += RXMAC_MC_FRM_CNT_COUNT; | |
3969 | if (val & XRXMAC_STATUS_RXBCAST_CNT_EXP) | |
3970 | mp->rx_bcasts += RXMAC_BC_FRM_CNT_COUNT; | |
3971 | if (val & XRXMAC_STATUS_RXBCAST_CNT_EXP) | |
3972 | mp->rx_bcasts += RXMAC_BC_FRM_CNT_COUNT; | |
3973 | if (val & XRXMAC_STATUS_RXHIST1_CNT_EXP) | |
3974 | mp->rx_hist_cnt1 += RXMAC_HIST_CNT1_COUNT; | |
3975 | if (val & XRXMAC_STATUS_RXHIST2_CNT_EXP) | |
3976 | mp->rx_hist_cnt2 += RXMAC_HIST_CNT2_COUNT; | |
3977 | if (val & XRXMAC_STATUS_RXHIST3_CNT_EXP) | |
3978 | mp->rx_hist_cnt3 += RXMAC_HIST_CNT3_COUNT; | |
3979 | if (val & XRXMAC_STATUS_RXHIST4_CNT_EXP) | |
3980 | mp->rx_hist_cnt4 += RXMAC_HIST_CNT4_COUNT; | |
3981 | if (val & XRXMAC_STATUS_RXHIST5_CNT_EXP) | |
3982 | mp->rx_hist_cnt5 += RXMAC_HIST_CNT5_COUNT; | |
3983 | if (val & XRXMAC_STATUS_RXHIST6_CNT_EXP) | |
3984 | mp->rx_hist_cnt6 += RXMAC_HIST_CNT6_COUNT; | |
3985 | if (val & XRXMAC_STATUS_RXHIST7_CNT_EXP) | |
3986 | mp->rx_hist_cnt7 += RXMAC_HIST_CNT7_COUNT; | |
176edd52 | 3987 | if (val & XRXMAC_STATUS_RXOCTET_CNT_EXP) |
a3138df9 DM |
3988 | mp->rx_octets += RXMAC_BT_CNT_COUNT; |
3989 | if (val & XRXMAC_STATUS_CVIOLERR_CNT_EXP) | |
3990 | mp->rx_code_violations += RXMAC_CD_VIO_CNT_COUNT; | |
3991 | if (val & XRXMAC_STATUS_LENERR_CNT_EXP) | |
3992 | mp->rx_len_errors += RXMAC_MPSZER_CNT_COUNT; | |
3993 | if (val & XRXMAC_STATUS_CRCERR_CNT_EXP) | |
3994 | mp->rx_crc_errors += RXMAC_CRC_ER_CNT_COUNT; | |
3995 | if (val & XRXMAC_STATUS_RXUFLOW) | |
3996 | mp->rx_underflows++; | |
3997 | if (val & XRXMAC_STATUS_RXOFLOW) | |
3998 | mp->rx_overflows++; | |
3999 | ||
4000 | val = nr64_mac(XMAC_FC_STAT); | |
4001 | if (val & XMAC_FC_STAT_TX_MAC_NPAUSE) | |
4002 | mp->pause_off_state++; | |
4003 | if (val & XMAC_FC_STAT_TX_MAC_PAUSE) | |
4004 | mp->pause_on_state++; | |
4005 | if (val & XMAC_FC_STAT_RX_MAC_RPAUSE) | |
4006 | mp->pause_received++; | |
4007 | } | |
4008 | ||
4009 | static void niu_bmac_interrupt(struct niu *np) | |
4010 | { | |
4011 | struct niu_bmac_stats *mp = &np->mac_stats.bmac; | |
4012 | u64 val; | |
4013 | ||
4014 | val = nr64_mac(BTXMAC_STATUS); | |
4015 | if (val & BTXMAC_STATUS_UNDERRUN) | |
4016 | mp->tx_underflow_errors++; | |
4017 | if (val & BTXMAC_STATUS_MAX_PKT_ERR) | |
4018 | mp->tx_max_pkt_size_errors++; | |
4019 | if (val & BTXMAC_STATUS_BYTE_CNT_EXP) | |
4020 | mp->tx_bytes += BTXMAC_BYTE_CNT_COUNT; | |
4021 | if (val & BTXMAC_STATUS_FRAME_CNT_EXP) | |
4022 | mp->tx_frames += BTXMAC_FRM_CNT_COUNT; | |
4023 | ||
4024 | val = nr64_mac(BRXMAC_STATUS); | |
4025 | if (val & BRXMAC_STATUS_OVERFLOW) | |
4026 | mp->rx_overflows++; | |
4027 | if (val & BRXMAC_STATUS_FRAME_CNT_EXP) | |
4028 | mp->rx_frames += BRXMAC_FRAME_CNT_COUNT; | |
4029 | if (val & BRXMAC_STATUS_ALIGN_ERR_EXP) | |
4030 | mp->rx_align_errors += BRXMAC_ALIGN_ERR_CNT_COUNT; | |
4031 | if (val & BRXMAC_STATUS_CRC_ERR_EXP) | |
4032 | mp->rx_crc_errors += BRXMAC_ALIGN_ERR_CNT_COUNT; | |
4033 | if (val & BRXMAC_STATUS_LEN_ERR_EXP) | |
4034 | mp->rx_len_errors += BRXMAC_CODE_VIOL_ERR_CNT_COUNT; | |
4035 | ||
4036 | val = nr64_mac(BMAC_CTRL_STATUS); | |
4037 | if (val & BMAC_CTRL_STATUS_NOPAUSE) | |
4038 | mp->pause_off_state++; | |
4039 | if (val & BMAC_CTRL_STATUS_PAUSE) | |
4040 | mp->pause_on_state++; | |
4041 | if (val & BMAC_CTRL_STATUS_PAUSE_RECV) | |
4042 | mp->pause_received++; | |
4043 | } | |
4044 | ||
4045 | static int niu_mac_interrupt(struct niu *np) | |
4046 | { | |
4047 | if (np->flags & NIU_FLAGS_XMAC) | |
4048 | niu_xmac_interrupt(np); | |
4049 | else | |
4050 | niu_bmac_interrupt(np); | |
4051 | ||
4052 | return 0; | |
4053 | } | |
4054 | ||
4055 | static void niu_log_device_error(struct niu *np, u64 stat) | |
4056 | { | |
f10a1f2e | 4057 | netdev_err(np->dev, "Core device errors ( "); |
a3138df9 DM |
4058 | |
4059 | if (stat & SYS_ERR_MASK_META2) | |
f10a1f2e | 4060 | pr_cont("META2 "); |
a3138df9 | 4061 | if (stat & SYS_ERR_MASK_META1) |
f10a1f2e | 4062 | pr_cont("META1 "); |
a3138df9 | 4063 | if (stat & SYS_ERR_MASK_PEU) |
f10a1f2e | 4064 | pr_cont("PEU "); |
a3138df9 | 4065 | if (stat & SYS_ERR_MASK_TXC) |
f10a1f2e | 4066 | pr_cont("TXC "); |
a3138df9 | 4067 | if (stat & SYS_ERR_MASK_RDMC) |
f10a1f2e | 4068 | pr_cont("RDMC "); |
a3138df9 | 4069 | if (stat & SYS_ERR_MASK_TDMC) |
f10a1f2e | 4070 | pr_cont("TDMC "); |
a3138df9 | 4071 | if (stat & SYS_ERR_MASK_ZCP) |
f10a1f2e | 4072 | pr_cont("ZCP "); |
a3138df9 | 4073 | if (stat & SYS_ERR_MASK_FFLP) |
f10a1f2e | 4074 | pr_cont("FFLP "); |
a3138df9 | 4075 | if (stat & SYS_ERR_MASK_IPP) |
f10a1f2e | 4076 | pr_cont("IPP "); |
a3138df9 | 4077 | if (stat & SYS_ERR_MASK_MAC) |
f10a1f2e | 4078 | pr_cont("MAC "); |
a3138df9 | 4079 | if (stat & SYS_ERR_MASK_SMX) |
f10a1f2e | 4080 | pr_cont("SMX "); |
a3138df9 | 4081 | |
f10a1f2e | 4082 | pr_cont(")\n"); |
a3138df9 DM |
4083 | } |
4084 | ||
4085 | static int niu_device_error(struct niu *np) | |
4086 | { | |
4087 | u64 stat = nr64(SYS_ERR_STAT); | |
4088 | ||
f10a1f2e JP |
4089 | netdev_err(np->dev, "Core device error, stat[%llx]\n", |
4090 | (unsigned long long)stat); | |
a3138df9 DM |
4091 | |
4092 | niu_log_device_error(np, stat); | |
4093 | ||
4094 | return -ENODEV; | |
4095 | } | |
4096 | ||
406f353c MW |
4097 | static int niu_slowpath_interrupt(struct niu *np, struct niu_ldg *lp, |
4098 | u64 v0, u64 v1, u64 v2) | |
a3138df9 | 4099 | { |
406f353c | 4100 | |
a3138df9 DM |
4101 | int i, err = 0; |
4102 | ||
406f353c MW |
4103 | lp->v0 = v0; |
4104 | lp->v1 = v1; | |
4105 | lp->v2 = v2; | |
4106 | ||
a3138df9 DM |
4107 | if (v1 & 0x00000000ffffffffULL) { |
4108 | u32 rx_vec = (v1 & 0xffffffff); | |
4109 | ||
4110 | for (i = 0; i < np->num_rx_rings; i++) { | |
4111 | struct rx_ring_info *rp = &np->rx_rings[i]; | |
4112 | ||
4113 | if (rx_vec & (1 << rp->rx_channel)) { | |
4114 | int r = niu_rx_error(np, rp); | |
406f353c | 4115 | if (r) { |
a3138df9 | 4116 | err = r; |
406f353c MW |
4117 | } else { |
4118 | if (!v0) | |
4119 | nw64(RX_DMA_CTL_STAT(rp->rx_channel), | |
4120 | RX_DMA_CTL_STAT_MEX); | |
4121 | } | |
a3138df9 DM |
4122 | } |
4123 | } | |
4124 | } | |
4125 | if (v1 & 0x7fffffff00000000ULL) { | |
4126 | u32 tx_vec = (v1 >> 32) & 0x7fffffff; | |
4127 | ||
4128 | for (i = 0; i < np->num_tx_rings; i++) { | |
4129 | struct tx_ring_info *rp = &np->tx_rings[i]; | |
4130 | ||
4131 | if (tx_vec & (1 << rp->tx_channel)) { | |
4132 | int r = niu_tx_error(np, rp); | |
4133 | if (r) | |
4134 | err = r; | |
4135 | } | |
4136 | } | |
4137 | } | |
4138 | if ((v0 | v1) & 0x8000000000000000ULL) { | |
4139 | int r = niu_mif_interrupt(np); | |
4140 | if (r) | |
4141 | err = r; | |
4142 | } | |
4143 | if (v2) { | |
4144 | if (v2 & 0x01ef) { | |
4145 | int r = niu_mac_interrupt(np); | |
4146 | if (r) | |
4147 | err = r; | |
4148 | } | |
4149 | if (v2 & 0x0210) { | |
4150 | int r = niu_device_error(np); | |
4151 | if (r) | |
4152 | err = r; | |
4153 | } | |
4154 | } | |
4155 | ||
4156 | if (err) | |
4157 | niu_enable_interrupts(np, 0); | |
4158 | ||
406f353c | 4159 | return err; |
a3138df9 DM |
4160 | } |
4161 | ||
4162 | static void niu_rxchan_intr(struct niu *np, struct rx_ring_info *rp, | |
4163 | int ldn) | |
4164 | { | |
4165 | struct rxdma_mailbox *mbox = rp->mbox; | |
4166 | u64 stat_write, stat = le64_to_cpup(&mbox->rx_dma_ctl_stat); | |
4167 | ||
4168 | stat_write = (RX_DMA_CTL_STAT_RCRTHRES | | |
4169 | RX_DMA_CTL_STAT_RCRTO); | |
4170 | nw64(RX_DMA_CTL_STAT(rp->rx_channel), stat_write); | |
4171 | ||
f10a1f2e JP |
4172 | netif_printk(np, intr, KERN_DEBUG, np->dev, |
4173 | "%s() stat[%llx]\n", __func__, (unsigned long long)stat); | |
a3138df9 DM |
4174 | } |
4175 | ||
4176 | static void niu_txchan_intr(struct niu *np, struct tx_ring_info *rp, | |
4177 | int ldn) | |
4178 | { | |
4179 | rp->tx_cs = nr64(TX_CS(rp->tx_channel)); | |
4180 | ||
f10a1f2e JP |
4181 | netif_printk(np, intr, KERN_DEBUG, np->dev, |
4182 | "%s() cs[%llx]\n", __func__, (unsigned long long)rp->tx_cs); | |
a3138df9 DM |
4183 | } |
4184 | ||
4185 | static void __niu_fastpath_interrupt(struct niu *np, int ldg, u64 v0) | |
4186 | { | |
4187 | struct niu_parent *parent = np->parent; | |
4188 | u32 rx_vec, tx_vec; | |
4189 | int i; | |
4190 | ||
4191 | tx_vec = (v0 >> 32); | |
4192 | rx_vec = (v0 & 0xffffffff); | |
4193 | ||
4194 | for (i = 0; i < np->num_rx_rings; i++) { | |
4195 | struct rx_ring_info *rp = &np->rx_rings[i]; | |
4196 | int ldn = LDN_RXDMA(rp->rx_channel); | |
4197 | ||
4198 | if (parent->ldg_map[ldn] != ldg) | |
4199 | continue; | |
4200 | ||
4201 | nw64(LD_IM0(ldn), LD_IM0_MASK); | |
4202 | if (rx_vec & (1 << rp->rx_channel)) | |
4203 | niu_rxchan_intr(np, rp, ldn); | |
4204 | } | |
4205 | ||
4206 | for (i = 0; i < np->num_tx_rings; i++) { | |
4207 | struct tx_ring_info *rp = &np->tx_rings[i]; | |
4208 | int ldn = LDN_TXDMA(rp->tx_channel); | |
4209 | ||
4210 | if (parent->ldg_map[ldn] != ldg) | |
4211 | continue; | |
4212 | ||
4213 | nw64(LD_IM0(ldn), LD_IM0_MASK); | |
4214 | if (tx_vec & (1 << rp->tx_channel)) | |
4215 | niu_txchan_intr(np, rp, ldn); | |
4216 | } | |
4217 | } | |
4218 | ||
4219 | static void niu_schedule_napi(struct niu *np, struct niu_ldg *lp, | |
4220 | u64 v0, u64 v1, u64 v2) | |
4221 | { | |
288379f0 | 4222 | if (likely(napi_schedule_prep(&lp->napi))) { |
a3138df9 DM |
4223 | lp->v0 = v0; |
4224 | lp->v1 = v1; | |
4225 | lp->v2 = v2; | |
4226 | __niu_fastpath_interrupt(np, lp->ldg_num, v0); | |
288379f0 | 4227 | __napi_schedule(&lp->napi); |
a3138df9 DM |
4228 | } |
4229 | } | |
4230 | ||
4231 | static irqreturn_t niu_interrupt(int irq, void *dev_id) | |
4232 | { | |
4233 | struct niu_ldg *lp = dev_id; | |
4234 | struct niu *np = lp->np; | |
4235 | int ldg = lp->ldg_num; | |
4236 | unsigned long flags; | |
4237 | u64 v0, v1, v2; | |
4238 | ||
4239 | if (netif_msg_intr(np)) | |
f10a1f2e JP |
4240 | printk(KERN_DEBUG KBUILD_MODNAME ": " "%s() ldg[%p](%d)", |
4241 | __func__, lp, ldg); | |
a3138df9 DM |
4242 | |
4243 | spin_lock_irqsave(&np->lock, flags); | |
4244 | ||
4245 | v0 = nr64(LDSV0(ldg)); | |
4246 | v1 = nr64(LDSV1(ldg)); | |
4247 | v2 = nr64(LDSV2(ldg)); | |
4248 | ||
4249 | if (netif_msg_intr(np)) | |
02b1bae5 | 4250 | pr_cont(" v0[%llx] v1[%llx] v2[%llx]\n", |
a3138df9 DM |
4251 | (unsigned long long) v0, |
4252 | (unsigned long long) v1, | |
4253 | (unsigned long long) v2); | |
4254 | ||
4255 | if (unlikely(!v0 && !v1 && !v2)) { | |
4256 | spin_unlock_irqrestore(&np->lock, flags); | |
4257 | return IRQ_NONE; | |
4258 | } | |
4259 | ||
4260 | if (unlikely((v0 & ((u64)1 << LDN_MIF)) || v1 || v2)) { | |
406f353c | 4261 | int err = niu_slowpath_interrupt(np, lp, v0, v1, v2); |
a3138df9 DM |
4262 | if (err) |
4263 | goto out; | |
4264 | } | |
4265 | if (likely(v0 & ~((u64)1 << LDN_MIF))) | |
4266 | niu_schedule_napi(np, lp, v0, v1, v2); | |
4267 | else | |
4268 | niu_ldg_rearm(np, lp, 1); | |
4269 | out: | |
4270 | spin_unlock_irqrestore(&np->lock, flags); | |
4271 | ||
4272 | return IRQ_HANDLED; | |
4273 | } | |
4274 | ||
4275 | static void niu_free_rx_ring_info(struct niu *np, struct rx_ring_info *rp) | |
4276 | { | |
4277 | if (rp->mbox) { | |
4278 | np->ops->free_coherent(np->device, | |
4279 | sizeof(struct rxdma_mailbox), | |
4280 | rp->mbox, rp->mbox_dma); | |
4281 | rp->mbox = NULL; | |
4282 | } | |
4283 | if (rp->rcr) { | |
4284 | np->ops->free_coherent(np->device, | |
4285 | MAX_RCR_RING_SIZE * sizeof(__le64), | |
4286 | rp->rcr, rp->rcr_dma); | |
4287 | rp->rcr = NULL; | |
4288 | rp->rcr_table_size = 0; | |
4289 | rp->rcr_index = 0; | |
4290 | } | |
4291 | if (rp->rbr) { | |
4292 | niu_rbr_free(np, rp); | |
4293 | ||
4294 | np->ops->free_coherent(np->device, | |
4295 | MAX_RBR_RING_SIZE * sizeof(__le32), | |
4296 | rp->rbr, rp->rbr_dma); | |
4297 | rp->rbr = NULL; | |
4298 | rp->rbr_table_size = 0; | |
4299 | rp->rbr_index = 0; | |
4300 | } | |
4301 | kfree(rp->rxhash); | |
4302 | rp->rxhash = NULL; | |
4303 | } | |
4304 | ||
4305 | static void niu_free_tx_ring_info(struct niu *np, struct tx_ring_info *rp) | |
4306 | { | |
4307 | if (rp->mbox) { | |
4308 | np->ops->free_coherent(np->device, | |
4309 | sizeof(struct txdma_mailbox), | |
4310 | rp->mbox, rp->mbox_dma); | |
4311 | rp->mbox = NULL; | |
4312 | } | |
4313 | if (rp->descr) { | |
4314 | int i; | |
4315 | ||
4316 | for (i = 0; i < MAX_TX_RING_SIZE; i++) { | |
4317 | if (rp->tx_buffs[i].skb) | |
4318 | (void) release_tx_packet(np, rp, i); | |
4319 | } | |
4320 | ||
4321 | np->ops->free_coherent(np->device, | |
4322 | MAX_TX_RING_SIZE * sizeof(__le64), | |
4323 | rp->descr, rp->descr_dma); | |
4324 | rp->descr = NULL; | |
4325 | rp->pending = 0; | |
4326 | rp->prod = 0; | |
4327 | rp->cons = 0; | |
4328 | rp->wrap_bit = 0; | |
4329 | } | |
4330 | } | |
4331 | ||
4332 | static void niu_free_channels(struct niu *np) | |
4333 | { | |
4334 | int i; | |
4335 | ||
4336 | if (np->rx_rings) { | |
4337 | for (i = 0; i < np->num_rx_rings; i++) { | |
4338 | struct rx_ring_info *rp = &np->rx_rings[i]; | |
4339 | ||
4340 | niu_free_rx_ring_info(np, rp); | |
4341 | } | |
4342 | kfree(np->rx_rings); | |
4343 | np->rx_rings = NULL; | |
4344 | np->num_rx_rings = 0; | |
4345 | } | |
4346 | ||
4347 | if (np->tx_rings) { | |
4348 | for (i = 0; i < np->num_tx_rings; i++) { | |
4349 | struct tx_ring_info *rp = &np->tx_rings[i]; | |
4350 | ||
4351 | niu_free_tx_ring_info(np, rp); | |
4352 | } | |
4353 | kfree(np->tx_rings); | |
4354 | np->tx_rings = NULL; | |
4355 | np->num_tx_rings = 0; | |
4356 | } | |
4357 | } | |
4358 | ||
4359 | static int niu_alloc_rx_ring_info(struct niu *np, | |
4360 | struct rx_ring_info *rp) | |
4361 | { | |
4362 | BUILD_BUG_ON(sizeof(struct rxdma_mailbox) != 64); | |
4363 | ||
4364 | rp->rxhash = kzalloc(MAX_RBR_RING_SIZE * sizeof(struct page *), | |
4365 | GFP_KERNEL); | |
4366 | if (!rp->rxhash) | |
4367 | return -ENOMEM; | |
4368 | ||
4369 | rp->mbox = np->ops->alloc_coherent(np->device, | |
4370 | sizeof(struct rxdma_mailbox), | |
4371 | &rp->mbox_dma, GFP_KERNEL); | |
4372 | if (!rp->mbox) | |
4373 | return -ENOMEM; | |
4374 | if ((unsigned long)rp->mbox & (64UL - 1)) { | |
f10a1f2e JP |
4375 | netdev_err(np->dev, "Coherent alloc gives misaligned RXDMA mailbox %p\n", |
4376 | rp->mbox); | |
a3138df9 DM |
4377 | return -EINVAL; |
4378 | } | |
4379 | ||
4380 | rp->rcr = np->ops->alloc_coherent(np->device, | |
4381 | MAX_RCR_RING_SIZE * sizeof(__le64), | |
4382 | &rp->rcr_dma, GFP_KERNEL); | |
4383 | if (!rp->rcr) | |
4384 | return -ENOMEM; | |
4385 | if ((unsigned long)rp->rcr & (64UL - 1)) { | |
f10a1f2e JP |
4386 | netdev_err(np->dev, "Coherent alloc gives misaligned RXDMA RCR table %p\n", |
4387 | rp->rcr); | |
a3138df9 DM |
4388 | return -EINVAL; |
4389 | } | |
4390 | rp->rcr_table_size = MAX_RCR_RING_SIZE; | |
4391 | rp->rcr_index = 0; | |
4392 | ||
4393 | rp->rbr = np->ops->alloc_coherent(np->device, | |
4394 | MAX_RBR_RING_SIZE * sizeof(__le32), | |
4395 | &rp->rbr_dma, GFP_KERNEL); | |
4396 | if (!rp->rbr) | |
4397 | return -ENOMEM; | |
4398 | if ((unsigned long)rp->rbr & (64UL - 1)) { | |
f10a1f2e JP |
4399 | netdev_err(np->dev, "Coherent alloc gives misaligned RXDMA RBR table %p\n", |
4400 | rp->rbr); | |
a3138df9 DM |
4401 | return -EINVAL; |
4402 | } | |
4403 | rp->rbr_table_size = MAX_RBR_RING_SIZE; | |
4404 | rp->rbr_index = 0; | |
4405 | rp->rbr_pending = 0; | |
4406 | ||
4407 | return 0; | |
4408 | } | |
4409 | ||
4410 | static void niu_set_max_burst(struct niu *np, struct tx_ring_info *rp) | |
4411 | { | |
4412 | int mtu = np->dev->mtu; | |
4413 | ||
4414 | /* These values are recommended by the HW designers for fair | |
4415 | * utilization of DRR amongst the rings. | |
4416 | */ | |
4417 | rp->max_burst = mtu + 32; | |
4418 | if (rp->max_burst > 4096) | |
4419 | rp->max_burst = 4096; | |
4420 | } | |
4421 | ||
4422 | static int niu_alloc_tx_ring_info(struct niu *np, | |
4423 | struct tx_ring_info *rp) | |
4424 | { | |
4425 | BUILD_BUG_ON(sizeof(struct txdma_mailbox) != 64); | |
4426 | ||
4427 | rp->mbox = np->ops->alloc_coherent(np->device, | |
4428 | sizeof(struct txdma_mailbox), | |
4429 | &rp->mbox_dma, GFP_KERNEL); | |
4430 | if (!rp->mbox) | |
4431 | return -ENOMEM; | |
4432 | if ((unsigned long)rp->mbox & (64UL - 1)) { | |
f10a1f2e JP |
4433 | netdev_err(np->dev, "Coherent alloc gives misaligned TXDMA mailbox %p\n", |
4434 | rp->mbox); | |
a3138df9 DM |
4435 | return -EINVAL; |
4436 | } | |
4437 | ||
4438 | rp->descr = np->ops->alloc_coherent(np->device, | |
4439 | MAX_TX_RING_SIZE * sizeof(__le64), | |
4440 | &rp->descr_dma, GFP_KERNEL); | |
4441 | if (!rp->descr) | |
4442 | return -ENOMEM; | |
4443 | if ((unsigned long)rp->descr & (64UL - 1)) { | |
f10a1f2e JP |
4444 | netdev_err(np->dev, "Coherent alloc gives misaligned TXDMA descr table %p\n", |
4445 | rp->descr); | |
a3138df9 DM |
4446 | return -EINVAL; |
4447 | } | |
4448 | ||
4449 | rp->pending = MAX_TX_RING_SIZE; | |
4450 | rp->prod = 0; | |
4451 | rp->cons = 0; | |
4452 | rp->wrap_bit = 0; | |
4453 | ||
4454 | /* XXX make these configurable... XXX */ | |
4455 | rp->mark_freq = rp->pending / 4; | |
4456 | ||
4457 | niu_set_max_burst(np, rp); | |
4458 | ||
4459 | return 0; | |
4460 | } | |
4461 | ||
4462 | static void niu_size_rbr(struct niu *np, struct rx_ring_info *rp) | |
4463 | { | |
81429973 | 4464 | u16 bss; |
a3138df9 | 4465 | |
81429973 | 4466 | bss = min(PAGE_SHIFT, 15); |
a3138df9 | 4467 | |
81429973 OJ |
4468 | rp->rbr_block_size = 1 << bss; |
4469 | rp->rbr_blocks_per_page = 1 << (PAGE_SHIFT-bss); | |
a3138df9 DM |
4470 | |
4471 | rp->rbr_sizes[0] = 256; | |
4472 | rp->rbr_sizes[1] = 1024; | |
4473 | if (np->dev->mtu > ETH_DATA_LEN) { | |
4474 | switch (PAGE_SIZE) { | |
4475 | case 4 * 1024: | |
4476 | rp->rbr_sizes[2] = 4096; | |
4477 | break; | |
4478 | ||
4479 | default: | |
4480 | rp->rbr_sizes[2] = 8192; | |
4481 | break; | |
4482 | } | |
4483 | } else { | |
4484 | rp->rbr_sizes[2] = 2048; | |
4485 | } | |
4486 | rp->rbr_sizes[3] = rp->rbr_block_size; | |
4487 | } | |
4488 | ||
4489 | static int niu_alloc_channels(struct niu *np) | |
4490 | { | |
4491 | struct niu_parent *parent = np->parent; | |
4492 | int first_rx_channel, first_tx_channel; | |
4493 | int i, port, err; | |
4494 | ||
4495 | port = np->port; | |
4496 | first_rx_channel = first_tx_channel = 0; | |
4497 | for (i = 0; i < port; i++) { | |
4498 | first_rx_channel += parent->rxchan_per_port[i]; | |
4499 | first_tx_channel += parent->txchan_per_port[i]; | |
4500 | } | |
4501 | ||
4502 | np->num_rx_rings = parent->rxchan_per_port[port]; | |
4503 | np->num_tx_rings = parent->txchan_per_port[port]; | |
4504 | ||
b4c21639 DM |
4505 | np->dev->real_num_tx_queues = np->num_tx_rings; |
4506 | ||
baeb2ffa | 4507 | np->rx_rings = kcalloc(np->num_rx_rings, sizeof(struct rx_ring_info), |
a3138df9 DM |
4508 | GFP_KERNEL); |
4509 | err = -ENOMEM; | |
4510 | if (!np->rx_rings) | |
4511 | goto out_err; | |
4512 | ||
4513 | for (i = 0; i < np->num_rx_rings; i++) { | |
4514 | struct rx_ring_info *rp = &np->rx_rings[i]; | |
4515 | ||
4516 | rp->np = np; | |
4517 | rp->rx_channel = first_rx_channel + i; | |
4518 | ||
4519 | err = niu_alloc_rx_ring_info(np, rp); | |
4520 | if (err) | |
4521 | goto out_err; | |
4522 | ||
4523 | niu_size_rbr(np, rp); | |
4524 | ||
4525 | /* XXX better defaults, configurable, etc... XXX */ | |
4526 | rp->nonsyn_window = 64; | |
4527 | rp->nonsyn_threshold = rp->rcr_table_size - 64; | |
4528 | rp->syn_window = 64; | |
4529 | rp->syn_threshold = rp->rcr_table_size - 64; | |
4530 | rp->rcr_pkt_threshold = 16; | |
4531 | rp->rcr_timeout = 8; | |
4532 | rp->rbr_kick_thresh = RBR_REFILL_MIN; | |
4533 | if (rp->rbr_kick_thresh < rp->rbr_blocks_per_page) | |
4534 | rp->rbr_kick_thresh = rp->rbr_blocks_per_page; | |
4535 | ||
4536 | err = niu_rbr_fill(np, rp, GFP_KERNEL); | |
4537 | if (err) | |
4538 | return err; | |
4539 | } | |
4540 | ||
baeb2ffa | 4541 | np->tx_rings = kcalloc(np->num_tx_rings, sizeof(struct tx_ring_info), |
a3138df9 DM |
4542 | GFP_KERNEL); |
4543 | err = -ENOMEM; | |
4544 | if (!np->tx_rings) | |
4545 | goto out_err; | |
4546 | ||
4547 | for (i = 0; i < np->num_tx_rings; i++) { | |
4548 | struct tx_ring_info *rp = &np->tx_rings[i]; | |
4549 | ||
4550 | rp->np = np; | |
4551 | rp->tx_channel = first_tx_channel + i; | |
4552 | ||
4553 | err = niu_alloc_tx_ring_info(np, rp); | |
4554 | if (err) | |
4555 | goto out_err; | |
4556 | } | |
4557 | ||
4558 | return 0; | |
4559 | ||
4560 | out_err: | |
4561 | niu_free_channels(np); | |
4562 | return err; | |
4563 | } | |
4564 | ||
4565 | static int niu_tx_cs_sng_poll(struct niu *np, int channel) | |
4566 | { | |
4567 | int limit = 1000; | |
4568 | ||
4569 | while (--limit > 0) { | |
4570 | u64 val = nr64(TX_CS(channel)); | |
4571 | if (val & TX_CS_SNG_STATE) | |
4572 | return 0; | |
4573 | } | |
4574 | return -ENODEV; | |
4575 | } | |
4576 | ||
4577 | static int niu_tx_channel_stop(struct niu *np, int channel) | |
4578 | { | |
4579 | u64 val = nr64(TX_CS(channel)); | |
4580 | ||
4581 | val |= TX_CS_STOP_N_GO; | |
4582 | nw64(TX_CS(channel), val); | |
4583 | ||
4584 | return niu_tx_cs_sng_poll(np, channel); | |
4585 | } | |
4586 | ||
4587 | static int niu_tx_cs_reset_poll(struct niu *np, int channel) | |
4588 | { | |
4589 | int limit = 1000; | |
4590 | ||
4591 | while (--limit > 0) { | |
4592 | u64 val = nr64(TX_CS(channel)); | |
4593 | if (!(val & TX_CS_RST)) | |
4594 | return 0; | |
4595 | } | |
4596 | return -ENODEV; | |
4597 | } | |
4598 | ||
4599 | static int niu_tx_channel_reset(struct niu *np, int channel) | |
4600 | { | |
4601 | u64 val = nr64(TX_CS(channel)); | |
4602 | int err; | |
4603 | ||
4604 | val |= TX_CS_RST; | |
4605 | nw64(TX_CS(channel), val); | |
4606 | ||
4607 | err = niu_tx_cs_reset_poll(np, channel); | |
4608 | if (!err) | |
4609 | nw64(TX_RING_KICK(channel), 0); | |
4610 | ||
4611 | return err; | |
4612 | } | |
4613 | ||
4614 | static int niu_tx_channel_lpage_init(struct niu *np, int channel) | |
4615 | { | |
4616 | u64 val; | |
4617 | ||
4618 | nw64(TX_LOG_MASK1(channel), 0); | |
4619 | nw64(TX_LOG_VAL1(channel), 0); | |
4620 | nw64(TX_LOG_MASK2(channel), 0); | |
4621 | nw64(TX_LOG_VAL2(channel), 0); | |
4622 | nw64(TX_LOG_PAGE_RELO1(channel), 0); | |
4623 | nw64(TX_LOG_PAGE_RELO2(channel), 0); | |
4624 | nw64(TX_LOG_PAGE_HDL(channel), 0); | |
4625 | ||
4626 | val = (u64)np->port << TX_LOG_PAGE_VLD_FUNC_SHIFT; | |
4627 | val |= (TX_LOG_PAGE_VLD_PAGE0 | TX_LOG_PAGE_VLD_PAGE1); | |
4628 | nw64(TX_LOG_PAGE_VLD(channel), val); | |
4629 | ||
4630 | /* XXX TXDMA 32bit mode? XXX */ | |
4631 | ||
4632 | return 0; | |
4633 | } | |
4634 | ||
4635 | static void niu_txc_enable_port(struct niu *np, int on) | |
4636 | { | |
4637 | unsigned long flags; | |
4638 | u64 val, mask; | |
4639 | ||
4640 | niu_lock_parent(np, flags); | |
4641 | val = nr64(TXC_CONTROL); | |
4642 | mask = (u64)1 << np->port; | |
4643 | if (on) { | |
4644 | val |= TXC_CONTROL_ENABLE | mask; | |
4645 | } else { | |
4646 | val &= ~mask; | |
4647 | if ((val & ~TXC_CONTROL_ENABLE) == 0) | |
4648 | val &= ~TXC_CONTROL_ENABLE; | |
4649 | } | |
4650 | nw64(TXC_CONTROL, val); | |
4651 | niu_unlock_parent(np, flags); | |
4652 | } | |
4653 | ||
4654 | static void niu_txc_set_imask(struct niu *np, u64 imask) | |
4655 | { | |
4656 | unsigned long flags; | |
4657 | u64 val; | |
4658 | ||
4659 | niu_lock_parent(np, flags); | |
4660 | val = nr64(TXC_INT_MASK); | |
4661 | val &= ~TXC_INT_MASK_VAL(np->port); | |
4662 | val |= (imask << TXC_INT_MASK_VAL_SHIFT(np->port)); | |
4663 | niu_unlock_parent(np, flags); | |
4664 | } | |
4665 | ||
4666 | static void niu_txc_port_dma_enable(struct niu *np, int on) | |
4667 | { | |
4668 | u64 val = 0; | |
4669 | ||
4670 | if (on) { | |
4671 | int i; | |
4672 | ||
4673 | for (i = 0; i < np->num_tx_rings; i++) | |
4674 | val |= (1 << np->tx_rings[i].tx_channel); | |
4675 | } | |
4676 | nw64(TXC_PORT_DMA(np->port), val); | |
4677 | } | |
4678 | ||
4679 | static int niu_init_one_tx_channel(struct niu *np, struct tx_ring_info *rp) | |
4680 | { | |
4681 | int err, channel = rp->tx_channel; | |
4682 | u64 val, ring_len; | |
4683 | ||
4684 | err = niu_tx_channel_stop(np, channel); | |
4685 | if (err) | |
4686 | return err; | |
4687 | ||
4688 | err = niu_tx_channel_reset(np, channel); | |
4689 | if (err) | |
4690 | return err; | |
4691 | ||
4692 | err = niu_tx_channel_lpage_init(np, channel); | |
4693 | if (err) | |
4694 | return err; | |
4695 | ||
4696 | nw64(TXC_DMA_MAX(channel), rp->max_burst); | |
4697 | nw64(TX_ENT_MSK(channel), 0); | |
4698 | ||
4699 | if (rp->descr_dma & ~(TX_RNG_CFIG_STADDR_BASE | | |
4700 | TX_RNG_CFIG_STADDR)) { | |
f10a1f2e JP |
4701 | netdev_err(np->dev, "TX ring channel %d DMA addr (%llx) is not aligned\n", |
4702 | channel, (unsigned long long)rp->descr_dma); | |
a3138df9 DM |
4703 | return -EINVAL; |
4704 | } | |
4705 | ||
4706 | /* The length field in TX_RNG_CFIG is measured in 64-byte | |
4707 | * blocks. rp->pending is the number of TX descriptors in | |
4708 | * our ring, 8 bytes each, thus we divide by 8 bytes more | |
4709 | * to get the proper value the chip wants. | |
4710 | */ | |
4711 | ring_len = (rp->pending / 8); | |
4712 | ||
4713 | val = ((ring_len << TX_RNG_CFIG_LEN_SHIFT) | | |
4714 | rp->descr_dma); | |
4715 | nw64(TX_RNG_CFIG(channel), val); | |
4716 | ||
4717 | if (((rp->mbox_dma >> 32) & ~TXDMA_MBH_MBADDR) || | |
4718 | ((u32)rp->mbox_dma & ~TXDMA_MBL_MBADDR)) { | |
f10a1f2e JP |
4719 | netdev_err(np->dev, "TX ring channel %d MBOX addr (%llx) has invalid bits\n", |
4720 | channel, (unsigned long long)rp->mbox_dma); | |
a3138df9 DM |
4721 | return -EINVAL; |
4722 | } | |
4723 | nw64(TXDMA_MBH(channel), rp->mbox_dma >> 32); | |
4724 | nw64(TXDMA_MBL(channel), rp->mbox_dma & TXDMA_MBL_MBADDR); | |
4725 | ||
4726 | nw64(TX_CS(channel), 0); | |
4727 | ||
4728 | rp->last_pkt_cnt = 0; | |
4729 | ||
4730 | return 0; | |
4731 | } | |
4732 | ||
4733 | static void niu_init_rdc_groups(struct niu *np) | |
4734 | { | |
4735 | struct niu_rdc_tables *tp = &np->parent->rdc_group_cfg[np->port]; | |
4736 | int i, first_table_num = tp->first_table_num; | |
4737 | ||
4738 | for (i = 0; i < tp->num_tables; i++) { | |
4739 | struct rdc_table *tbl = &tp->tables[i]; | |
4740 | int this_table = first_table_num + i; | |
4741 | int slot; | |
4742 | ||
4743 | for (slot = 0; slot < NIU_RDC_TABLE_SLOTS; slot++) | |
4744 | nw64(RDC_TBL(this_table, slot), | |
4745 | tbl->rxdma_channel[slot]); | |
4746 | } | |
4747 | ||
4748 | nw64(DEF_RDC(np->port), np->parent->rdc_default[np->port]); | |
4749 | } | |
4750 | ||
4751 | static void niu_init_drr_weight(struct niu *np) | |
4752 | { | |
4753 | int type = phy_decode(np->parent->port_phy, np->port); | |
4754 | u64 val; | |
4755 | ||
4756 | switch (type) { | |
4757 | case PORT_TYPE_10G: | |
4758 | val = PT_DRR_WEIGHT_DEFAULT_10G; | |
4759 | break; | |
4760 | ||
4761 | case PORT_TYPE_1G: | |
4762 | default: | |
4763 | val = PT_DRR_WEIGHT_DEFAULT_1G; | |
4764 | break; | |
4765 | } | |
4766 | nw64(PT_DRR_WT(np->port), val); | |
4767 | } | |
4768 | ||
4769 | static int niu_init_hostinfo(struct niu *np) | |
4770 | { | |
4771 | struct niu_parent *parent = np->parent; | |
4772 | struct niu_rdc_tables *tp = &parent->rdc_group_cfg[np->port]; | |
4773 | int i, err, num_alt = niu_num_alt_addr(np); | |
4774 | int first_rdc_table = tp->first_table_num; | |
4775 | ||
4776 | err = niu_set_primary_mac_rdc_table(np, first_rdc_table, 1); | |
4777 | if (err) | |
4778 | return err; | |
4779 | ||
4780 | err = niu_set_multicast_mac_rdc_table(np, first_rdc_table, 1); | |
4781 | if (err) | |
4782 | return err; | |
4783 | ||
4784 | for (i = 0; i < num_alt; i++) { | |
4785 | err = niu_set_alt_mac_rdc_table(np, i, first_rdc_table, 1); | |
4786 | if (err) | |
4787 | return err; | |
4788 | } | |
4789 | ||
4790 | return 0; | |
4791 | } | |
4792 | ||
4793 | static int niu_rx_channel_reset(struct niu *np, int channel) | |
4794 | { | |
4795 | return niu_set_and_wait_clear(np, RXDMA_CFIG1(channel), | |
4796 | RXDMA_CFIG1_RST, 1000, 10, | |
4797 | "RXDMA_CFIG1"); | |
4798 | } | |
4799 | ||
4800 | static int niu_rx_channel_lpage_init(struct niu *np, int channel) | |
4801 | { | |
4802 | u64 val; | |
4803 | ||
4804 | nw64(RX_LOG_MASK1(channel), 0); | |
4805 | nw64(RX_LOG_VAL1(channel), 0); | |
4806 | nw64(RX_LOG_MASK2(channel), 0); | |
4807 | nw64(RX_LOG_VAL2(channel), 0); | |
4808 | nw64(RX_LOG_PAGE_RELO1(channel), 0); | |
4809 | nw64(RX_LOG_PAGE_RELO2(channel), 0); | |
4810 | nw64(RX_LOG_PAGE_HDL(channel), 0); | |
4811 | ||
4812 | val = (u64)np->port << RX_LOG_PAGE_VLD_FUNC_SHIFT; | |
4813 | val |= (RX_LOG_PAGE_VLD_PAGE0 | RX_LOG_PAGE_VLD_PAGE1); | |
4814 | nw64(RX_LOG_PAGE_VLD(channel), val); | |
4815 | ||
4816 | return 0; | |
4817 | } | |
4818 | ||
4819 | static void niu_rx_channel_wred_init(struct niu *np, struct rx_ring_info *rp) | |
4820 | { | |
4821 | u64 val; | |
4822 | ||
4823 | val = (((u64)rp->nonsyn_window << RDC_RED_PARA_WIN_SHIFT) | | |
4824 | ((u64)rp->nonsyn_threshold << RDC_RED_PARA_THRE_SHIFT) | | |
4825 | ((u64)rp->syn_window << RDC_RED_PARA_WIN_SYN_SHIFT) | | |
4826 | ((u64)rp->syn_threshold << RDC_RED_PARA_THRE_SYN_SHIFT)); | |
4827 | nw64(RDC_RED_PARA(rp->rx_channel), val); | |
4828 | } | |
4829 | ||
4830 | static int niu_compute_rbr_cfig_b(struct rx_ring_info *rp, u64 *ret) | |
4831 | { | |
4832 | u64 val = 0; | |
4833 | ||
efb6c736 | 4834 | *ret = 0; |
a3138df9 DM |
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); | |
3cfa856d DM |
4954 | nw64(RXDMA_CFIG2(channel), |
4955 | ((rp->mbox_dma & RXDMA_CFIG2_MBADDR_L) | | |
4956 | RXDMA_CFIG2_FULL_HDR)); | |
a3138df9 DM |
4957 | nw64(RBR_CFIG_A(channel), |
4958 | ((u64)rp->rbr_table_size << RBR_CFIG_A_LEN_SHIFT) | | |
4959 | (rp->rbr_dma & (RBR_CFIG_A_STADDR_BASE | RBR_CFIG_A_STADDR))); | |
4960 | err = niu_compute_rbr_cfig_b(rp, &val); | |
4961 | if (err) | |
4962 | return err; | |
4963 | nw64(RBR_CFIG_B(channel), val); | |
4964 | nw64(RCRCFIG_A(channel), | |
4965 | ((u64)rp->rcr_table_size << RCRCFIG_A_LEN_SHIFT) | | |
4966 | (rp->rcr_dma & (RCRCFIG_A_STADDR_BASE | RCRCFIG_A_STADDR))); | |
4967 | nw64(RCRCFIG_B(channel), | |
4968 | ((u64)rp->rcr_pkt_threshold << RCRCFIG_B_PTHRES_SHIFT) | | |
4969 | RCRCFIG_B_ENTOUT | | |
4970 | ((u64)rp->rcr_timeout << RCRCFIG_B_TIMEOUT_SHIFT)); | |
4971 | ||
4972 | err = niu_enable_rx_channel(np, channel, 1); | |
4973 | if (err) | |
4974 | return err; | |
4975 | ||
4976 | nw64(RBR_KICK(channel), rp->rbr_index); | |
4977 | ||
4978 | val = nr64(RX_DMA_CTL_STAT(channel)); | |
4979 | val |= RX_DMA_CTL_STAT_RBR_EMPTY; | |
4980 | nw64(RX_DMA_CTL_STAT(channel), val); | |
4981 | ||
4982 | return 0; | |
4983 | } | |
4984 | ||
4985 | static int niu_init_rx_channels(struct niu *np) | |
4986 | { | |
4987 | unsigned long flags; | |
4988 | u64 seed = jiffies_64; | |
4989 | int err, i; | |
4990 | ||
4991 | niu_lock_parent(np, flags); | |
4992 | nw64(RX_DMA_CK_DIV, np->parent->rxdma_clock_divider); | |
4993 | nw64(RED_RAN_INIT, RED_RAN_INIT_OPMODE | (seed & RED_RAN_INIT_VAL)); | |
4994 | niu_unlock_parent(np, flags); | |
4995 | ||
4996 | /* XXX RXDMA 32bit mode? XXX */ | |
4997 | ||
4998 | niu_init_rdc_groups(np); | |
4999 | niu_init_drr_weight(np); | |
5000 | ||
5001 | err = niu_init_hostinfo(np); | |
5002 | if (err) | |
5003 | return err; | |
5004 | ||
5005 | for (i = 0; i < np->num_rx_rings; i++) { | |
5006 | struct rx_ring_info *rp = &np->rx_rings[i]; | |
5007 | ||
5008 | err = niu_init_one_rx_channel(np, rp); | |
5009 | if (err) | |
5010 | return err; | |
5011 | } | |
5012 | ||
5013 | return 0; | |
5014 | } | |
5015 | ||
5016 | static int niu_set_ip_frag_rule(struct niu *np) | |
5017 | { | |
5018 | struct niu_parent *parent = np->parent; | |
5019 | struct niu_classifier *cp = &np->clas; | |
5020 | struct niu_tcam_entry *tp; | |
5021 | int index, err; | |
5022 | ||
2d96cf8c | 5023 | index = cp->tcam_top; |
a3138df9 DM |
5024 | tp = &parent->tcam[index]; |
5025 | ||
5026 | /* Note that the noport bit is the same in both ipv4 and | |
5027 | * ipv6 format TCAM entries. | |
5028 | */ | |
5029 | memset(tp, 0, sizeof(*tp)); | |
5030 | tp->key[1] = TCAM_V4KEY1_NOPORT; | |
5031 | tp->key_mask[1] = TCAM_V4KEY1_NOPORT; | |
5032 | tp->assoc_data = (TCAM_ASSOCDATA_TRES_USE_OFFSET | | |
5033 | ((u64)0 << TCAM_ASSOCDATA_OFFSET_SHIFT)); | |
5034 | err = tcam_write(np, index, tp->key, tp->key_mask); | |
5035 | if (err) | |
5036 | return err; | |
5037 | err = tcam_assoc_write(np, index, tp->assoc_data); | |
5038 | if (err) | |
5039 | return err; | |
2d96cf8c SB |
5040 | tp->valid = 1; |
5041 | cp->tcam_valid_entries++; | |
a3138df9 DM |
5042 | |
5043 | return 0; | |
5044 | } | |
5045 | ||
5046 | static int niu_init_classifier_hw(struct niu *np) | |
5047 | { | |
5048 | struct niu_parent *parent = np->parent; | |
5049 | struct niu_classifier *cp = &np->clas; | |
5050 | int i, err; | |
5051 | ||
5052 | nw64(H1POLY, cp->h1_init); | |
5053 | nw64(H2POLY, cp->h2_init); | |
5054 | ||
5055 | err = niu_init_hostinfo(np); | |
5056 | if (err) | |
5057 | return err; | |
5058 | ||
5059 | for (i = 0; i < ENET_VLAN_TBL_NUM_ENTRIES; i++) { | |
5060 | struct niu_vlan_rdc *vp = &cp->vlan_mappings[i]; | |
5061 | ||
5062 | vlan_tbl_write(np, i, np->port, | |
5063 | vp->vlan_pref, vp->rdc_num); | |
5064 | } | |
5065 | ||
5066 | for (i = 0; i < cp->num_alt_mac_mappings; i++) { | |
5067 | struct niu_altmac_rdc *ap = &cp->alt_mac_mappings[i]; | |
5068 | ||
5069 | err = niu_set_alt_mac_rdc_table(np, ap->alt_mac_num, | |
5070 | ap->rdc_num, ap->mac_pref); | |
5071 | if (err) | |
5072 | return err; | |
5073 | } | |
5074 | ||
5075 | for (i = CLASS_CODE_USER_PROG1; i <= CLASS_CODE_SCTP_IPV6; i++) { | |
5076 | int index = i - CLASS_CODE_USER_PROG1; | |
5077 | ||
5078 | err = niu_set_tcam_key(np, i, parent->tcam_key[index]); | |
5079 | if (err) | |
5080 | return err; | |
5081 | err = niu_set_flow_key(np, i, parent->flow_key[index]); | |
5082 | if (err) | |
5083 | return err; | |
5084 | } | |
5085 | ||
5086 | err = niu_set_ip_frag_rule(np); | |
5087 | if (err) | |
5088 | return err; | |
5089 | ||
5090 | tcam_enable(np, 1); | |
5091 | ||
5092 | return 0; | |
5093 | } | |
5094 | ||
5095 | static int niu_zcp_write(struct niu *np, int index, u64 *data) | |
5096 | { | |
5097 | nw64(ZCP_RAM_DATA0, data[0]); | |
5098 | nw64(ZCP_RAM_DATA1, data[1]); | |
5099 | nw64(ZCP_RAM_DATA2, data[2]); | |
5100 | nw64(ZCP_RAM_DATA3, data[3]); | |
5101 | nw64(ZCP_RAM_DATA4, data[4]); | |
5102 | nw64(ZCP_RAM_BE, ZCP_RAM_BE_VAL); | |
5103 | nw64(ZCP_RAM_ACC, | |
5104 | (ZCP_RAM_ACC_WRITE | | |
5105 | (0 << ZCP_RAM_ACC_ZFCID_SHIFT) | | |
5106 | (ZCP_RAM_SEL_CFIFO(np->port) << ZCP_RAM_ACC_RAM_SEL_SHIFT))); | |
5107 | ||
5108 | return niu_wait_bits_clear(np, ZCP_RAM_ACC, ZCP_RAM_ACC_BUSY, | |
5109 | 1000, 100); | |
5110 | } | |
5111 | ||
5112 | static int niu_zcp_read(struct niu *np, int index, u64 *data) | |
5113 | { | |
5114 | int err; | |
5115 | ||
5116 | err = niu_wait_bits_clear(np, ZCP_RAM_ACC, ZCP_RAM_ACC_BUSY, | |
5117 | 1000, 100); | |
5118 | if (err) { | |
f10a1f2e JP |
5119 | netdev_err(np->dev, "ZCP read busy won't clear, ZCP_RAM_ACC[%llx]\n", |
5120 | (unsigned long long)nr64(ZCP_RAM_ACC)); | |
a3138df9 DM |
5121 | return err; |
5122 | } | |
5123 | ||
5124 | nw64(ZCP_RAM_ACC, | |
5125 | (ZCP_RAM_ACC_READ | | |
5126 | (0 << ZCP_RAM_ACC_ZFCID_SHIFT) | | |
5127 | (ZCP_RAM_SEL_CFIFO(np->port) << ZCP_RAM_ACC_RAM_SEL_SHIFT))); | |
5128 | ||
5129 | err = niu_wait_bits_clear(np, ZCP_RAM_ACC, ZCP_RAM_ACC_BUSY, | |
5130 | 1000, 100); | |
5131 | if (err) { | |
f10a1f2e JP |
5132 | netdev_err(np->dev, "ZCP read busy2 won't clear, ZCP_RAM_ACC[%llx]\n", |
5133 | (unsigned long long)nr64(ZCP_RAM_ACC)); | |
a3138df9 DM |
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) { | |
f10a1f2e | 5498 | dev_err(np->device, "Port %u TX BMAC would not reset, BTXMAC_SW_RST[%llx]\n", |
a3138df9 DM |
5499 | np->port, |
5500 | (unsigned long long) nr64_mac(BTXMAC_SW_RST)); | |
5501 | return -ENODEV; | |
5502 | } | |
5503 | ||
5504 | return 0; | |
5505 | } | |
5506 | ||
5507 | static int niu_reset_tx_mac(struct niu *np) | |
5508 | { | |
5509 | if (np->flags & NIU_FLAGS_XMAC) | |
5510 | return niu_reset_tx_xmac(np); | |
5511 | else | |
5512 | return niu_reset_tx_bmac(np); | |
5513 | } | |
5514 | ||
5515 | static void niu_init_tx_xmac(struct niu *np, u64 min, u64 max) | |
5516 | { | |
5517 | u64 val; | |
5518 | ||
5519 | val = nr64_mac(XMAC_MIN); | |
5520 | val &= ~(XMAC_MIN_TX_MIN_PKT_SIZE | | |
5521 | XMAC_MIN_RX_MIN_PKT_SIZE); | |
5522 | val |= (min << XMAC_MIN_RX_MIN_PKT_SIZE_SHFT); | |
5523 | val |= (min << XMAC_MIN_TX_MIN_PKT_SIZE_SHFT); | |
5524 | nw64_mac(XMAC_MIN, val); | |
5525 | ||
5526 | nw64_mac(XMAC_MAX, max); | |
5527 | ||
5528 | nw64_mac(XTXMAC_STAT_MSK, ~(u64)0); | |
5529 | ||
5530 | val = nr64_mac(XMAC_IPG); | |
5531 | if (np->flags & NIU_FLAGS_10G) { | |
5532 | val &= ~XMAC_IPG_IPG_XGMII; | |
5533 | val |= (IPG_12_15_XGMII << XMAC_IPG_IPG_XGMII_SHIFT); | |
5534 | } else { | |
5535 | val &= ~XMAC_IPG_IPG_MII_GMII; | |
5536 | val |= (IPG_12_MII_GMII << XMAC_IPG_IPG_MII_GMII_SHIFT); | |
5537 | } | |
5538 | nw64_mac(XMAC_IPG, val); | |
5539 | ||
5540 | val = nr64_mac(XMAC_CONFIG); | |
5541 | val &= ~(XMAC_CONFIG_ALWAYS_NO_CRC | | |
5542 | XMAC_CONFIG_STRETCH_MODE | | |
5543 | XMAC_CONFIG_VAR_MIN_IPG_EN | | |
5544 | XMAC_CONFIG_TX_ENABLE); | |
5545 | nw64_mac(XMAC_CONFIG, val); | |
5546 | ||
5547 | nw64_mac(TXMAC_FRM_CNT, 0); | |
5548 | nw64_mac(TXMAC_BYTE_CNT, 0); | |
5549 | } | |
5550 | ||
5551 | static void niu_init_tx_bmac(struct niu *np, u64 min, u64 max) | |
5552 | { | |
5553 | u64 val; | |
5554 | ||
5555 | nw64_mac(BMAC_MIN_FRAME, min); | |
5556 | nw64_mac(BMAC_MAX_FRAME, max); | |
5557 | ||
5558 | nw64_mac(BTXMAC_STATUS_MASK, ~(u64)0); | |
5559 | nw64_mac(BMAC_CTRL_TYPE, 0x8808); | |
5560 | nw64_mac(BMAC_PREAMBLE_SIZE, 7); | |
5561 | ||
5562 | val = nr64_mac(BTXMAC_CONFIG); | |
5563 | val &= ~(BTXMAC_CONFIG_FCS_DISABLE | | |
5564 | BTXMAC_CONFIG_ENABLE); | |
5565 | nw64_mac(BTXMAC_CONFIG, val); | |
5566 | } | |
5567 | ||
5568 | static void niu_init_tx_mac(struct niu *np) | |
5569 | { | |
5570 | u64 min, max; | |
5571 | ||
5572 | min = 64; | |
5573 | if (np->dev->mtu > ETH_DATA_LEN) | |
5574 | max = 9216; | |
5575 | else | |
5576 | max = 1522; | |
5577 | ||
5578 | /* The XMAC_MIN register only accepts values for TX min which | |
5579 | * have the low 3 bits cleared. | |
5580 | */ | |
8c87df45 | 5581 | BUG_ON(min & 0x7); |
a3138df9 DM |
5582 | |
5583 | if (np->flags & NIU_FLAGS_XMAC) | |
5584 | niu_init_tx_xmac(np, min, max); | |
5585 | else | |
5586 | niu_init_tx_bmac(np, min, max); | |
5587 | } | |
5588 | ||
5589 | static int niu_reset_rx_xmac(struct niu *np) | |
5590 | { | |
5591 | int limit; | |
5592 | ||
5593 | nw64_mac(XRXMAC_SW_RST, | |
5594 | XRXMAC_SW_RST_REG_RS | XRXMAC_SW_RST_SOFT_RST); | |
5595 | limit = 1000; | |
5596 | while (--limit >= 0) { | |
5597 | if (!(nr64_mac(XRXMAC_SW_RST) & (XRXMAC_SW_RST_REG_RS | | |
5598 | XRXMAC_SW_RST_SOFT_RST))) | |
f10a1f2e | 5599 | break; |
a3138df9 DM |
5600 | udelay(100); |
5601 | } | |
5602 | if (limit < 0) { | |
f10a1f2e | 5603 | dev_err(np->device, "Port %u RX XMAC would not reset, XRXMAC_SW_RST[%llx]\n", |
a3138df9 DM |
5604 | np->port, |
5605 | (unsigned long long) nr64_mac(XRXMAC_SW_RST)); | |
5606 | return -ENODEV; | |
5607 | } | |
5608 | ||
5609 | return 0; | |
5610 | } | |
5611 | ||
5612 | static int niu_reset_rx_bmac(struct niu *np) | |
5613 | { | |
5614 | int limit; | |
5615 | ||
5616 | nw64_mac(BRXMAC_SW_RST, BRXMAC_SW_RST_RESET); | |
5617 | limit = 1000; | |
5618 | while (--limit >= 0) { | |
5619 | if (!(nr64_mac(BRXMAC_SW_RST) & BRXMAC_SW_RST_RESET)) | |
5620 | break; | |
5621 | udelay(100); | |
5622 | } | |
5623 | if (limit < 0) { | |
f10a1f2e | 5624 | dev_err(np->device, "Port %u RX BMAC would not reset, BRXMAC_SW_RST[%llx]\n", |
a3138df9 DM |
5625 | np->port, |
5626 | (unsigned long long) nr64_mac(BRXMAC_SW_RST)); | |
5627 | return -ENODEV; | |
5628 | } | |
5629 | ||
5630 | return 0; | |
5631 | } | |
5632 | ||
5633 | static int niu_reset_rx_mac(struct niu *np) | |
5634 | { | |
5635 | if (np->flags & NIU_FLAGS_XMAC) | |
5636 | return niu_reset_rx_xmac(np); | |
5637 | else | |
5638 | return niu_reset_rx_bmac(np); | |
5639 | } | |
5640 | ||
5641 | static void niu_init_rx_xmac(struct niu *np) | |
5642 | { | |
5643 | struct niu_parent *parent = np->parent; | |
5644 | struct niu_rdc_tables *tp = &parent->rdc_group_cfg[np->port]; | |
5645 | int first_rdc_table = tp->first_table_num; | |
5646 | unsigned long i; | |
5647 | u64 val; | |
5648 | ||
5649 | nw64_mac(XMAC_ADD_FILT0, 0); | |
5650 | nw64_mac(XMAC_ADD_FILT1, 0); | |
5651 | nw64_mac(XMAC_ADD_FILT2, 0); | |
5652 | nw64_mac(XMAC_ADD_FILT12_MASK, 0); | |
5653 | nw64_mac(XMAC_ADD_FILT00_MASK, 0); | |
5654 | for (i = 0; i < MAC_NUM_HASH; i++) | |
5655 | nw64_mac(XMAC_HASH_TBL(i), 0); | |
5656 | nw64_mac(XRXMAC_STAT_MSK, ~(u64)0); | |
5657 | niu_set_primary_mac_rdc_table(np, first_rdc_table, 1); | |
5658 | niu_set_multicast_mac_rdc_table(np, first_rdc_table, 1); | |
5659 | ||
5660 | val = nr64_mac(XMAC_CONFIG); | |
5661 | val &= ~(XMAC_CONFIG_RX_MAC_ENABLE | | |
5662 | XMAC_CONFIG_PROMISCUOUS | | |
5663 | XMAC_CONFIG_PROMISC_GROUP | | |
5664 | XMAC_CONFIG_ERR_CHK_DIS | | |
5665 | XMAC_CONFIG_RX_CRC_CHK_DIS | | |
5666 | XMAC_CONFIG_RESERVED_MULTICAST | | |
5667 | XMAC_CONFIG_RX_CODEV_CHK_DIS | | |
5668 | XMAC_CONFIG_ADDR_FILTER_EN | | |
5669 | XMAC_CONFIG_RCV_PAUSE_ENABLE | | |
5670 | XMAC_CONFIG_STRIP_CRC | | |
5671 | XMAC_CONFIG_PASS_FLOW_CTRL | | |
5672 | XMAC_CONFIG_MAC2IPP_PKT_CNT_EN); | |
5673 | val |= (XMAC_CONFIG_HASH_FILTER_EN); | |
5674 | nw64_mac(XMAC_CONFIG, val); | |
5675 | ||
5676 | nw64_mac(RXMAC_BT_CNT, 0); | |
5677 | nw64_mac(RXMAC_BC_FRM_CNT, 0); | |
5678 | nw64_mac(RXMAC_MC_FRM_CNT, 0); | |
5679 | nw64_mac(RXMAC_FRAG_CNT, 0); | |
5680 | nw64_mac(RXMAC_HIST_CNT1, 0); | |
5681 | nw64_mac(RXMAC_HIST_CNT2, 0); | |
5682 | nw64_mac(RXMAC_HIST_CNT3, 0); | |
5683 | nw64_mac(RXMAC_HIST_CNT4, 0); | |
5684 | nw64_mac(RXMAC_HIST_CNT5, 0); | |
5685 | nw64_mac(RXMAC_HIST_CNT6, 0); | |
5686 | nw64_mac(RXMAC_HIST_CNT7, 0); | |
5687 | nw64_mac(RXMAC_MPSZER_CNT, 0); | |
5688 | nw64_mac(RXMAC_CRC_ER_CNT, 0); | |
5689 | nw64_mac(RXMAC_CD_VIO_CNT, 0); | |
5690 | nw64_mac(LINK_FAULT_CNT, 0); | |
5691 | } | |
5692 | ||
5693 | static void niu_init_rx_bmac(struct niu *np) | |
5694 | { | |
5695 | struct niu_parent *parent = np->parent; | |
5696 | struct niu_rdc_tables *tp = &parent->rdc_group_cfg[np->port]; | |
5697 | int first_rdc_table = tp->first_table_num; | |
5698 | unsigned long i; | |
5699 | u64 val; | |
5700 | ||
5701 | nw64_mac(BMAC_ADD_FILT0, 0); | |
5702 | nw64_mac(BMAC_ADD_FILT1, 0); | |
5703 | nw64_mac(BMAC_ADD_FILT2, 0); | |
5704 | nw64_mac(BMAC_ADD_FILT12_MASK, 0); | |
5705 | nw64_mac(BMAC_ADD_FILT00_MASK, 0); | |
5706 | for (i = 0; i < MAC_NUM_HASH; i++) | |
5707 | nw64_mac(BMAC_HASH_TBL(i), 0); | |
5708 | niu_set_primary_mac_rdc_table(np, first_rdc_table, 1); | |
5709 | niu_set_multicast_mac_rdc_table(np, first_rdc_table, 1); | |
5710 | nw64_mac(BRXMAC_STATUS_MASK, ~(u64)0); | |
5711 | ||
5712 | val = nr64_mac(BRXMAC_CONFIG); | |
5713 | val &= ~(BRXMAC_CONFIG_ENABLE | | |
5714 | BRXMAC_CONFIG_STRIP_PAD | | |
5715 | BRXMAC_CONFIG_STRIP_FCS | | |
5716 | BRXMAC_CONFIG_PROMISC | | |
5717 | BRXMAC_CONFIG_PROMISC_GRP | | |
5718 | BRXMAC_CONFIG_ADDR_FILT_EN | | |
5719 | BRXMAC_CONFIG_DISCARD_DIS); | |
5720 | val |= (BRXMAC_CONFIG_HASH_FILT_EN); | |
5721 | nw64_mac(BRXMAC_CONFIG, val); | |
5722 | ||
5723 | val = nr64_mac(BMAC_ADDR_CMPEN); | |
5724 | val |= BMAC_ADDR_CMPEN_EN0; | |
5725 | nw64_mac(BMAC_ADDR_CMPEN, val); | |
5726 | } | |
5727 | ||
5728 | static void niu_init_rx_mac(struct niu *np) | |
5729 | { | |
5730 | niu_set_primary_mac(np, np->dev->dev_addr); | |
5731 | ||
5732 | if (np->flags & NIU_FLAGS_XMAC) | |
5733 | niu_init_rx_xmac(np); | |
5734 | else | |
5735 | niu_init_rx_bmac(np); | |
5736 | } | |
5737 | ||
5738 | static void niu_enable_tx_xmac(struct niu *np, int on) | |
5739 | { | |
5740 | u64 val = nr64_mac(XMAC_CONFIG); | |
5741 | ||
5742 | if (on) | |
5743 | val |= XMAC_CONFIG_TX_ENABLE; | |
5744 | else | |
5745 | val &= ~XMAC_CONFIG_TX_ENABLE; | |
5746 | nw64_mac(XMAC_CONFIG, val); | |
5747 | } | |
5748 | ||
5749 | static void niu_enable_tx_bmac(struct niu *np, int on) | |
5750 | { | |
5751 | u64 val = nr64_mac(BTXMAC_CONFIG); | |
5752 | ||
5753 | if (on) | |
5754 | val |= BTXMAC_CONFIG_ENABLE; | |
5755 | else | |
5756 | val &= ~BTXMAC_CONFIG_ENABLE; | |
5757 | nw64_mac(BTXMAC_CONFIG, val); | |
5758 | } | |
5759 | ||
5760 | static void niu_enable_tx_mac(struct niu *np, int on) | |
5761 | { | |
5762 | if (np->flags & NIU_FLAGS_XMAC) | |
5763 | niu_enable_tx_xmac(np, on); | |
5764 | else | |
5765 | niu_enable_tx_bmac(np, on); | |
5766 | } | |
5767 | ||
5768 | static void niu_enable_rx_xmac(struct niu *np, int on) | |
5769 | { | |
5770 | u64 val = nr64_mac(XMAC_CONFIG); | |
5771 | ||
5772 | val &= ~(XMAC_CONFIG_HASH_FILTER_EN | | |
5773 | XMAC_CONFIG_PROMISCUOUS); | |
5774 | ||
5775 | if (np->flags & NIU_FLAGS_MCAST) | |
5776 | val |= XMAC_CONFIG_HASH_FILTER_EN; | |
5777 | if (np->flags & NIU_FLAGS_PROMISC) | |
5778 | val |= XMAC_CONFIG_PROMISCUOUS; | |
5779 | ||
5780 | if (on) | |
5781 | val |= XMAC_CONFIG_RX_MAC_ENABLE; | |
5782 | else | |
5783 | val &= ~XMAC_CONFIG_RX_MAC_ENABLE; | |
5784 | nw64_mac(XMAC_CONFIG, val); | |
5785 | } | |
5786 | ||
5787 | static void niu_enable_rx_bmac(struct niu *np, int on) | |
5788 | { | |
5789 | u64 val = nr64_mac(BRXMAC_CONFIG); | |
5790 | ||
5791 | val &= ~(BRXMAC_CONFIG_HASH_FILT_EN | | |
5792 | BRXMAC_CONFIG_PROMISC); | |
5793 | ||
5794 | if (np->flags & NIU_FLAGS_MCAST) | |
5795 | val |= BRXMAC_CONFIG_HASH_FILT_EN; | |
5796 | if (np->flags & NIU_FLAGS_PROMISC) | |
5797 | val |= BRXMAC_CONFIG_PROMISC; | |
5798 | ||
5799 | if (on) | |
5800 | val |= BRXMAC_CONFIG_ENABLE; | |
5801 | else | |
5802 | val &= ~BRXMAC_CONFIG_ENABLE; | |
5803 | nw64_mac(BRXMAC_CONFIG, val); | |
5804 | } | |
5805 | ||
5806 | static void niu_enable_rx_mac(struct niu *np, int on) | |
5807 | { | |
5808 | if (np->flags & NIU_FLAGS_XMAC) | |
5809 | niu_enable_rx_xmac(np, on); | |
5810 | else | |
5811 | niu_enable_rx_bmac(np, on); | |
5812 | } | |
5813 | ||
5814 | static int niu_init_mac(struct niu *np) | |
5815 | { | |
5816 | int err; | |
5817 | ||
5818 | niu_init_xif(np); | |
5819 | err = niu_init_pcs(np); | |
5820 | if (err) | |
5821 | return err; | |
5822 | ||
5823 | err = niu_reset_tx_mac(np); | |
5824 | if (err) | |
5825 | return err; | |
5826 | niu_init_tx_mac(np); | |
5827 | err = niu_reset_rx_mac(np); | |
5828 | if (err) | |
5829 | return err; | |
5830 | niu_init_rx_mac(np); | |
5831 | ||
5832 | /* This looks hookey but the RX MAC reset we just did will | |
5833 | * undo some of the state we setup in niu_init_tx_mac() so we | |
5834 | * have to call it again. In particular, the RX MAC reset will | |
5835 | * set the XMAC_MAX register back to it's default value. | |
5836 | */ | |
5837 | niu_init_tx_mac(np); | |
5838 | niu_enable_tx_mac(np, 1); | |
5839 | ||
5840 | niu_enable_rx_mac(np, 1); | |
5841 | ||
5842 | return 0; | |
5843 | } | |
5844 | ||
5845 | static void niu_stop_one_tx_channel(struct niu *np, struct tx_ring_info *rp) | |
5846 | { | |
5847 | (void) niu_tx_channel_stop(np, rp->tx_channel); | |
5848 | } | |
5849 | ||
5850 | static void niu_stop_tx_channels(struct niu *np) | |
5851 | { | |
5852 | int i; | |
5853 | ||
5854 | for (i = 0; i < np->num_tx_rings; i++) { | |
5855 | struct tx_ring_info *rp = &np->tx_rings[i]; | |
5856 | ||
5857 | niu_stop_one_tx_channel(np, rp); | |
5858 | } | |
5859 | } | |
5860 | ||
5861 | static void niu_reset_one_tx_channel(struct niu *np, struct tx_ring_info *rp) | |
5862 | { | |
5863 | (void) niu_tx_channel_reset(np, rp->tx_channel); | |
5864 | } | |
5865 | ||
5866 | static void niu_reset_tx_channels(struct niu *np) | |
5867 | { | |
5868 | int i; | |
5869 | ||
5870 | for (i = 0; i < np->num_tx_rings; i++) { | |
5871 | struct tx_ring_info *rp = &np->tx_rings[i]; | |
5872 | ||
5873 | niu_reset_one_tx_channel(np, rp); | |
5874 | } | |
5875 | } | |
5876 | ||
5877 | static void niu_stop_one_rx_channel(struct niu *np, struct rx_ring_info *rp) | |
5878 | { | |
5879 | (void) niu_enable_rx_channel(np, rp->rx_channel, 0); | |
5880 | } | |
5881 | ||
5882 | static void niu_stop_rx_channels(struct niu *np) | |
5883 | { | |
5884 | int i; | |
5885 | ||
5886 | for (i = 0; i < np->num_rx_rings; i++) { | |
5887 | struct rx_ring_info *rp = &np->rx_rings[i]; | |
5888 | ||
5889 | niu_stop_one_rx_channel(np, rp); | |
5890 | } | |
5891 | } | |
5892 | ||
5893 | static void niu_reset_one_rx_channel(struct niu *np, struct rx_ring_info *rp) | |
5894 | { | |
5895 | int channel = rp->rx_channel; | |
5896 | ||
5897 | (void) niu_rx_channel_reset(np, channel); | |
5898 | nw64(RX_DMA_ENT_MSK(channel), RX_DMA_ENT_MSK_ALL); | |
5899 | nw64(RX_DMA_CTL_STAT(channel), 0); | |
5900 | (void) niu_enable_rx_channel(np, channel, 0); | |
5901 | } | |
5902 | ||
5903 | static void niu_reset_rx_channels(struct niu *np) | |
5904 | { | |
5905 | int i; | |
5906 | ||
5907 | for (i = 0; i < np->num_rx_rings; i++) { | |
5908 | struct rx_ring_info *rp = &np->rx_rings[i]; | |
5909 | ||
5910 | niu_reset_one_rx_channel(np, rp); | |
5911 | } | |
5912 | } | |
5913 | ||
5914 | static void niu_disable_ipp(struct niu *np) | |
5915 | { | |
5916 | u64 rd, wr, val; | |
5917 | int limit; | |
5918 | ||
5919 | rd = nr64_ipp(IPP_DFIFO_RD_PTR); | |
5920 | wr = nr64_ipp(IPP_DFIFO_WR_PTR); | |
5921 | limit = 100; | |
5922 | while (--limit >= 0 && (rd != wr)) { | |
5923 | rd = nr64_ipp(IPP_DFIFO_RD_PTR); | |
5924 | wr = nr64_ipp(IPP_DFIFO_WR_PTR); | |
5925 | } | |
5926 | if (limit < 0 && | |
5927 | (rd != 0 && wr != 1)) { | |
f10a1f2e JP |
5928 | netdev_err(np->dev, "IPP would not quiesce, rd_ptr[%llx] wr_ptr[%llx]\n", |
5929 | (unsigned long long)nr64_ipp(IPP_DFIFO_RD_PTR), | |
5930 | (unsigned long long)nr64_ipp(IPP_DFIFO_WR_PTR)); | |
a3138df9 DM |
5931 | } |
5932 | ||
5933 | val = nr64_ipp(IPP_CFIG); | |
5934 | val &= ~(IPP_CFIG_IPP_ENABLE | | |
5935 | IPP_CFIG_DFIFO_ECC_EN | | |
5936 | IPP_CFIG_DROP_BAD_CRC | | |
5937 | IPP_CFIG_CKSUM_EN); | |
5938 | nw64_ipp(IPP_CFIG, val); | |
5939 | ||
5940 | (void) niu_ipp_reset(np); | |
5941 | } | |
5942 | ||
5943 | static int niu_init_hw(struct niu *np) | |
5944 | { | |
5945 | int i, err; | |
5946 | ||
f10a1f2e | 5947 | netif_printk(np, ifup, KERN_DEBUG, np->dev, "Initialize TXC\n"); |
a3138df9 DM |
5948 | niu_txc_enable_port(np, 1); |
5949 | niu_txc_port_dma_enable(np, 1); | |
5950 | niu_txc_set_imask(np, 0); | |
5951 | ||
f10a1f2e | 5952 | netif_printk(np, ifup, KERN_DEBUG, np->dev, "Initialize TX channels\n"); |
a3138df9 DM |
5953 | for (i = 0; i < np->num_tx_rings; i++) { |
5954 | struct tx_ring_info *rp = &np->tx_rings[i]; | |
5955 | ||
5956 | err = niu_init_one_tx_channel(np, rp); | |
5957 | if (err) | |
5958 | return err; | |
5959 | } | |
5960 | ||
f10a1f2e | 5961 | netif_printk(np, ifup, KERN_DEBUG, np->dev, "Initialize RX channels\n"); |
a3138df9 DM |
5962 | err = niu_init_rx_channels(np); |
5963 | if (err) | |
5964 | goto out_uninit_tx_channels; | |
5965 | ||
f10a1f2e | 5966 | netif_printk(np, ifup, KERN_DEBUG, np->dev, "Initialize classifier\n"); |
a3138df9 DM |
5967 | err = niu_init_classifier_hw(np); |
5968 | if (err) | |
5969 | goto out_uninit_rx_channels; | |
5970 | ||
f10a1f2e | 5971 | netif_printk(np, ifup, KERN_DEBUG, np->dev, "Initialize ZCP\n"); |
a3138df9 DM |
5972 | err = niu_init_zcp(np); |
5973 | if (err) | |
5974 | goto out_uninit_rx_channels; | |
5975 | ||
f10a1f2e | 5976 | netif_printk(np, ifup, KERN_DEBUG, np->dev, "Initialize IPP\n"); |
a3138df9 DM |
5977 | err = niu_init_ipp(np); |
5978 | if (err) | |
5979 | goto out_uninit_rx_channels; | |
5980 | ||
f10a1f2e | 5981 | netif_printk(np, ifup, KERN_DEBUG, np->dev, "Initialize MAC\n"); |
a3138df9 DM |
5982 | err = niu_init_mac(np); |
5983 | if (err) | |
5984 | goto out_uninit_ipp; | |
5985 | ||
5986 | return 0; | |
5987 | ||
5988 | out_uninit_ipp: | |
f10a1f2e | 5989 | netif_printk(np, ifup, KERN_DEBUG, np->dev, "Uninit IPP\n"); |
a3138df9 DM |
5990 | niu_disable_ipp(np); |
5991 | ||
5992 | out_uninit_rx_channels: | |
f10a1f2e | 5993 | netif_printk(np, ifup, KERN_DEBUG, np->dev, "Uninit RX channels\n"); |
a3138df9 DM |
5994 | niu_stop_rx_channels(np); |
5995 | niu_reset_rx_channels(np); | |
5996 | ||
5997 | out_uninit_tx_channels: | |
f10a1f2e | 5998 | netif_printk(np, ifup, KERN_DEBUG, np->dev, "Uninit TX channels\n"); |
a3138df9 DM |
5999 | niu_stop_tx_channels(np); |
6000 | niu_reset_tx_channels(np); | |
6001 | ||
6002 | return err; | |
6003 | } | |
6004 | ||
6005 | static void niu_stop_hw(struct niu *np) | |
6006 | { | |
f10a1f2e | 6007 | netif_printk(np, ifdown, KERN_DEBUG, np->dev, "Disable interrupts\n"); |
a3138df9 DM |
6008 | niu_enable_interrupts(np, 0); |
6009 | ||
f10a1f2e | 6010 | netif_printk(np, ifdown, KERN_DEBUG, np->dev, "Disable RX MAC\n"); |
a3138df9 DM |
6011 | niu_enable_rx_mac(np, 0); |
6012 | ||
f10a1f2e | 6013 | netif_printk(np, ifdown, KERN_DEBUG, np->dev, "Disable IPP\n"); |
a3138df9 DM |
6014 | niu_disable_ipp(np); |
6015 | ||
f10a1f2e | 6016 | netif_printk(np, ifdown, KERN_DEBUG, np->dev, "Stop TX channels\n"); |
a3138df9 DM |
6017 | niu_stop_tx_channels(np); |
6018 | ||
f10a1f2e | 6019 | netif_printk(np, ifdown, KERN_DEBUG, np->dev, "Stop RX channels\n"); |
a3138df9 DM |
6020 | niu_stop_rx_channels(np); |
6021 | ||
f10a1f2e | 6022 | netif_printk(np, ifdown, KERN_DEBUG, np->dev, "Reset TX channels\n"); |
a3138df9 DM |
6023 | niu_reset_tx_channels(np); |
6024 | ||
f10a1f2e | 6025 | netif_printk(np, ifdown, KERN_DEBUG, np->dev, "Reset RX channels\n"); |
a3138df9 DM |
6026 | niu_reset_rx_channels(np); |
6027 | } | |
6028 | ||
70340d72 RO |
6029 | static void niu_set_irq_name(struct niu *np) |
6030 | { | |
6031 | int port = np->port; | |
6032 | int i, j = 1; | |
6033 | ||
6034 | sprintf(np->irq_name[0], "%s:MAC", np->dev->name); | |
6035 | ||
6036 | if (port == 0) { | |
6037 | sprintf(np->irq_name[1], "%s:MIF", np->dev->name); | |
6038 | sprintf(np->irq_name[2], "%s:SYSERR", np->dev->name); | |
6039 | j = 3; | |
6040 | } | |
6041 | ||
6042 | for (i = 0; i < np->num_ldg - j; i++) { | |
6043 | if (i < np->num_rx_rings) | |
6044 | sprintf(np->irq_name[i+j], "%s-rx-%d", | |
6045 | np->dev->name, i); | |
6046 | else if (i < np->num_tx_rings + np->num_rx_rings) | |
6047 | sprintf(np->irq_name[i+j], "%s-tx-%d", np->dev->name, | |
6048 | i - np->num_rx_rings); | |
6049 | } | |
6050 | } | |
6051 | ||
a3138df9 DM |
6052 | static int niu_request_irq(struct niu *np) |
6053 | { | |
6054 | int i, j, err; | |
6055 | ||
70340d72 RO |
6056 | niu_set_irq_name(np); |
6057 | ||
a3138df9 DM |
6058 | err = 0; |
6059 | for (i = 0; i < np->num_ldg; i++) { | |
6060 | struct niu_ldg *lp = &np->ldg[i]; | |
6061 | ||
6062 | err = request_irq(lp->irq, niu_interrupt, | |
6063 | IRQF_SHARED | IRQF_SAMPLE_RANDOM, | |
70340d72 | 6064 | np->irq_name[i], lp); |
a3138df9 DM |
6065 | if (err) |
6066 | goto out_free_irqs; | |
6067 | ||
6068 | } | |
6069 | ||
6070 | return 0; | |
6071 | ||
6072 | out_free_irqs: | |
6073 | for (j = 0; j < i; j++) { | |
6074 | struct niu_ldg *lp = &np->ldg[j]; | |
6075 | ||
6076 | free_irq(lp->irq, lp); | |
6077 | } | |
6078 | return err; | |
6079 | } | |
6080 | ||
6081 | static void niu_free_irq(struct niu *np) | |
6082 | { | |
6083 | int i; | |
6084 | ||
6085 | for (i = 0; i < np->num_ldg; i++) { | |
6086 | struct niu_ldg *lp = &np->ldg[i]; | |
6087 | ||
6088 | free_irq(lp->irq, lp); | |
6089 | } | |
6090 | } | |
6091 | ||
6092 | static void niu_enable_napi(struct niu *np) | |
6093 | { | |
6094 | int i; | |
6095 | ||
6096 | for (i = 0; i < np->num_ldg; i++) | |
6097 | napi_enable(&np->ldg[i].napi); | |
6098 | } | |
6099 | ||
6100 | static void niu_disable_napi(struct niu *np) | |
6101 | { | |
6102 | int i; | |
6103 | ||
6104 | for (i = 0; i < np->num_ldg; i++) | |
6105 | napi_disable(&np->ldg[i].napi); | |
6106 | } | |
6107 | ||
6108 | static int niu_open(struct net_device *dev) | |
6109 | { | |
6110 | struct niu *np = netdev_priv(dev); | |
6111 | int err; | |
6112 | ||
6113 | netif_carrier_off(dev); | |
6114 | ||
6115 | err = niu_alloc_channels(np); | |
6116 | if (err) | |
6117 | goto out_err; | |
6118 | ||
6119 | err = niu_enable_interrupts(np, 0); | |
6120 | if (err) | |
6121 | goto out_free_channels; | |
6122 | ||
6123 | err = niu_request_irq(np); | |
6124 | if (err) | |
6125 | goto out_free_channels; | |
6126 | ||
6127 | niu_enable_napi(np); | |
6128 | ||
6129 | spin_lock_irq(&np->lock); | |
6130 | ||
6131 | err = niu_init_hw(np); | |
6132 | if (!err) { | |
6133 | init_timer(&np->timer); | |
6134 | np->timer.expires = jiffies + HZ; | |
6135 | np->timer.data = (unsigned long) np; | |
6136 | np->timer.function = niu_timer; | |
6137 | ||
6138 | err = niu_enable_interrupts(np, 1); | |
6139 | if (err) | |
6140 | niu_stop_hw(np); | |
6141 | } | |
6142 | ||
6143 | spin_unlock_irq(&np->lock); | |
6144 | ||
6145 | if (err) { | |
6146 | niu_disable_napi(np); | |
6147 | goto out_free_irq; | |
6148 | } | |
6149 | ||
b4c21639 | 6150 | netif_tx_start_all_queues(dev); |
a3138df9 DM |
6151 | |
6152 | if (np->link_config.loopback_mode != LOOPBACK_DISABLED) | |
6153 | netif_carrier_on(dev); | |
6154 | ||
6155 | add_timer(&np->timer); | |
6156 | ||
6157 | return 0; | |
6158 | ||
6159 | out_free_irq: | |
6160 | niu_free_irq(np); | |
6161 | ||
6162 | out_free_channels: | |
6163 | niu_free_channels(np); | |
6164 | ||
6165 | out_err: | |
6166 | return err; | |
6167 | } | |
6168 | ||
6169 | static void niu_full_shutdown(struct niu *np, struct net_device *dev) | |
6170 | { | |
6171 | cancel_work_sync(&np->reset_task); | |
6172 | ||
6173 | niu_disable_napi(np); | |
b4c21639 | 6174 | netif_tx_stop_all_queues(dev); |
a3138df9 DM |
6175 | |
6176 | del_timer_sync(&np->timer); | |
6177 | ||
6178 | spin_lock_irq(&np->lock); | |
6179 | ||
6180 | niu_stop_hw(np); | |
6181 | ||
6182 | spin_unlock_irq(&np->lock); | |
6183 | } | |
6184 | ||
6185 | static int niu_close(struct net_device *dev) | |
6186 | { | |
6187 | struct niu *np = netdev_priv(dev); | |
6188 | ||
6189 | niu_full_shutdown(np, dev); | |
6190 | ||
6191 | niu_free_irq(np); | |
6192 | ||
6193 | niu_free_channels(np); | |
6194 | ||
0c3b091b ML |
6195 | niu_handle_led(np, 0); |
6196 | ||
a3138df9 DM |
6197 | return 0; |
6198 | } | |
6199 | ||
6200 | static void niu_sync_xmac_stats(struct niu *np) | |
6201 | { | |
6202 | struct niu_xmac_stats *mp = &np->mac_stats.xmac; | |
6203 | ||
6204 | mp->tx_frames += nr64_mac(TXMAC_FRM_CNT); | |
6205 | mp->tx_bytes += nr64_mac(TXMAC_BYTE_CNT); | |
6206 | ||
6207 | mp->rx_link_faults += nr64_mac(LINK_FAULT_CNT); | |
6208 | mp->rx_align_errors += nr64_mac(RXMAC_ALIGN_ERR_CNT); | |
6209 | mp->rx_frags += nr64_mac(RXMAC_FRAG_CNT); | |
6210 | mp->rx_mcasts += nr64_mac(RXMAC_MC_FRM_CNT); | |
6211 | mp->rx_bcasts += nr64_mac(RXMAC_BC_FRM_CNT); | |
6212 | mp->rx_hist_cnt1 += nr64_mac(RXMAC_HIST_CNT1); | |
6213 | mp->rx_hist_cnt2 += nr64_mac(RXMAC_HIST_CNT2); | |
6214 | mp->rx_hist_cnt3 += nr64_mac(RXMAC_HIST_CNT3); | |
6215 | mp->rx_hist_cnt4 += nr64_mac(RXMAC_HIST_CNT4); | |
6216 | mp->rx_hist_cnt5 += nr64_mac(RXMAC_HIST_CNT5); | |
6217 | mp->rx_hist_cnt6 += nr64_mac(RXMAC_HIST_CNT6); | |
6218 | mp->rx_hist_cnt7 += nr64_mac(RXMAC_HIST_CNT7); | |
6219 | mp->rx_octets += nr64_mac(RXMAC_BT_CNT); | |
6220 | mp->rx_code_violations += nr64_mac(RXMAC_CD_VIO_CNT); | |
6221 | mp->rx_len_errors += nr64_mac(RXMAC_MPSZER_CNT); | |
6222 | mp->rx_crc_errors += nr64_mac(RXMAC_CRC_ER_CNT); | |
6223 | } | |
6224 | ||
6225 | static void niu_sync_bmac_stats(struct niu *np) | |
6226 | { | |
6227 | struct niu_bmac_stats *mp = &np->mac_stats.bmac; | |
6228 | ||
6229 | mp->tx_bytes += nr64_mac(BTXMAC_BYTE_CNT); | |
6230 | mp->tx_frames += nr64_mac(BTXMAC_FRM_CNT); | |
6231 | ||
6232 | mp->rx_frames += nr64_mac(BRXMAC_FRAME_CNT); | |
6233 | mp->rx_align_errors += nr64_mac(BRXMAC_ALIGN_ERR_CNT); | |
6234 | mp->rx_crc_errors += nr64_mac(BRXMAC_ALIGN_ERR_CNT); | |
6235 | mp->rx_len_errors += nr64_mac(BRXMAC_CODE_VIOL_ERR_CNT); | |
6236 | } | |
6237 | ||
6238 | static void niu_sync_mac_stats(struct niu *np) | |
6239 | { | |
6240 | if (np->flags & NIU_FLAGS_XMAC) | |
6241 | niu_sync_xmac_stats(np); | |
6242 | else | |
6243 | niu_sync_bmac_stats(np); | |
6244 | } | |
6245 | ||
6246 | static void niu_get_rx_stats(struct niu *np) | |
6247 | { | |
6248 | unsigned long pkts, dropped, errors, bytes; | |
6249 | int i; | |
6250 | ||
6251 | pkts = dropped = errors = bytes = 0; | |
6252 | for (i = 0; i < np->num_rx_rings; i++) { | |
6253 | struct rx_ring_info *rp = &np->rx_rings[i]; | |
6254 | ||
b8a606b8 JDB |
6255 | niu_sync_rx_discard_stats(np, rp, 0); |
6256 | ||
a3138df9 DM |
6257 | pkts += rp->rx_packets; |
6258 | bytes += rp->rx_bytes; | |
6259 | dropped += rp->rx_dropped; | |
6260 | errors += rp->rx_errors; | |
6261 | } | |
9fd42876 IJ |
6262 | np->dev->stats.rx_packets = pkts; |
6263 | np->dev->stats.rx_bytes = bytes; | |
6264 | np->dev->stats.rx_dropped = dropped; | |
6265 | np->dev->stats.rx_errors = errors; | |
a3138df9 DM |
6266 | } |
6267 | ||
6268 | static void niu_get_tx_stats(struct niu *np) | |
6269 | { | |
6270 | unsigned long pkts, errors, bytes; | |
6271 | int i; | |
6272 | ||
6273 | pkts = errors = bytes = 0; | |
6274 | for (i = 0; i < np->num_tx_rings; i++) { | |
6275 | struct tx_ring_info *rp = &np->tx_rings[i]; | |
6276 | ||
6277 | pkts += rp->tx_packets; | |
6278 | bytes += rp->tx_bytes; | |
6279 | errors += rp->tx_errors; | |
6280 | } | |
9fd42876 IJ |
6281 | np->dev->stats.tx_packets = pkts; |
6282 | np->dev->stats.tx_bytes = bytes; | |
6283 | np->dev->stats.tx_errors = errors; | |
a3138df9 DM |
6284 | } |
6285 | ||
6286 | static struct net_device_stats *niu_get_stats(struct net_device *dev) | |
6287 | { | |
6288 | struct niu *np = netdev_priv(dev); | |
6289 | ||
6290 | niu_get_rx_stats(np); | |
6291 | niu_get_tx_stats(np); | |
6292 | ||
9fd42876 | 6293 | return &dev->stats; |
a3138df9 DM |
6294 | } |
6295 | ||
6296 | static void niu_load_hash_xmac(struct niu *np, u16 *hash) | |
6297 | { | |
6298 | int i; | |
6299 | ||
6300 | for (i = 0; i < 16; i++) | |
6301 | nw64_mac(XMAC_HASH_TBL(i), hash[i]); | |
6302 | } | |
6303 | ||
6304 | static void niu_load_hash_bmac(struct niu *np, u16 *hash) | |
6305 | { | |
6306 | int i; | |
6307 | ||
6308 | for (i = 0; i < 16; i++) | |
6309 | nw64_mac(BMAC_HASH_TBL(i), hash[i]); | |
6310 | } | |
6311 | ||
6312 | static void niu_load_hash(struct niu *np, u16 *hash) | |
6313 | { | |
6314 | if (np->flags & NIU_FLAGS_XMAC) | |
6315 | niu_load_hash_xmac(np, hash); | |
6316 | else | |
6317 | niu_load_hash_bmac(np, hash); | |
6318 | } | |
6319 | ||
6320 | static void niu_set_rx_mode(struct net_device *dev) | |
6321 | { | |
6322 | struct niu *np = netdev_priv(dev); | |
6323 | int i, alt_cnt, err; | |
ccffad25 | 6324 | struct netdev_hw_addr *ha; |
a3138df9 DM |
6325 | unsigned long flags; |
6326 | u16 hash[16] = { 0, }; | |
6327 | ||
6328 | spin_lock_irqsave(&np->lock, flags); | |
6329 | niu_enable_rx_mac(np, 0); | |
6330 | ||
6331 | np->flags &= ~(NIU_FLAGS_MCAST | NIU_FLAGS_PROMISC); | |
6332 | if (dev->flags & IFF_PROMISC) | |
6333 | np->flags |= NIU_FLAGS_PROMISC; | |
4cd24eaf | 6334 | if ((dev->flags & IFF_ALLMULTI) || (!netdev_mc_empty(dev))) |
a3138df9 DM |
6335 | np->flags |= NIU_FLAGS_MCAST; |
6336 | ||
32e7bfc4 | 6337 | alt_cnt = netdev_uc_count(dev); |
a3138df9 DM |
6338 | if (alt_cnt > niu_num_alt_addr(np)) { |
6339 | alt_cnt = 0; | |
6340 | np->flags |= NIU_FLAGS_PROMISC; | |
6341 | } | |
6342 | ||
6343 | if (alt_cnt) { | |
6344 | int index = 0; | |
6345 | ||
32e7bfc4 | 6346 | netdev_for_each_uc_addr(ha, dev) { |
ccffad25 | 6347 | err = niu_set_alt_mac(np, index, ha->addr); |
a3138df9 | 6348 | if (err) |
f10a1f2e JP |
6349 | netdev_warn(dev, "Error %d adding alt mac %d\n", |
6350 | err, index); | |
a3138df9 DM |
6351 | err = niu_enable_alt_mac(np, index, 1); |
6352 | if (err) | |
f10a1f2e JP |
6353 | netdev_warn(dev, "Error %d enabling alt mac %d\n", |
6354 | err, index); | |
a3138df9 DM |
6355 | |
6356 | index++; | |
6357 | } | |
6358 | } else { | |
3b5bcede MW |
6359 | int alt_start; |
6360 | if (np->flags & NIU_FLAGS_XMAC) | |
6361 | alt_start = 0; | |
6362 | else | |
6363 | alt_start = 1; | |
6364 | for (i = alt_start; i < niu_num_alt_addr(np); i++) { | |
a3138df9 DM |
6365 | err = niu_enable_alt_mac(np, i, 0); |
6366 | if (err) | |
f10a1f2e JP |
6367 | netdev_warn(dev, "Error %d disabling alt mac %d\n", |
6368 | err, i); | |
a3138df9 DM |
6369 | } |
6370 | } | |
6371 | if (dev->flags & IFF_ALLMULTI) { | |
6372 | for (i = 0; i < 16; i++) | |
6373 | hash[i] = 0xffff; | |
4cd24eaf | 6374 | } else if (!netdev_mc_empty(dev)) { |
22bedad3 JP |
6375 | netdev_for_each_mc_addr(ha, dev) { |
6376 | u32 crc = ether_crc_le(ETH_ALEN, ha->addr); | |
a3138df9 DM |
6377 | |
6378 | crc >>= 24; | |
6379 | hash[crc >> 4] |= (1 << (15 - (crc & 0xf))); | |
6380 | } | |
6381 | } | |
6382 | ||
6383 | if (np->flags & NIU_FLAGS_MCAST) | |
6384 | niu_load_hash(np, hash); | |
6385 | ||
6386 | niu_enable_rx_mac(np, 1); | |
6387 | spin_unlock_irqrestore(&np->lock, flags); | |
6388 | } | |
6389 | ||
6390 | static int niu_set_mac_addr(struct net_device *dev, void *p) | |
6391 | { | |
6392 | struct niu *np = netdev_priv(dev); | |
6393 | struct sockaddr *addr = p; | |
6394 | unsigned long flags; | |
6395 | ||
6396 | if (!is_valid_ether_addr(addr->sa_data)) | |
6397 | return -EINVAL; | |
6398 | ||
6399 | memcpy(dev->dev_addr, addr->sa_data, ETH_ALEN); | |
6400 | ||
6401 | if (!netif_running(dev)) | |
6402 | return 0; | |
6403 | ||
6404 | spin_lock_irqsave(&np->lock, flags); | |
6405 | niu_enable_rx_mac(np, 0); | |
6406 | niu_set_primary_mac(np, dev->dev_addr); | |
6407 | niu_enable_rx_mac(np, 1); | |
6408 | spin_unlock_irqrestore(&np->lock, flags); | |
6409 | ||
6410 | return 0; | |
6411 | } | |
6412 | ||
6413 | static int niu_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) | |
6414 | { | |
6415 | return -EOPNOTSUPP; | |
6416 | } | |
6417 | ||
6418 | static void niu_netif_stop(struct niu *np) | |
6419 | { | |
6420 | np->dev->trans_start = jiffies; /* prevent tx timeout */ | |
6421 | ||
6422 | niu_disable_napi(np); | |
6423 | ||
6424 | netif_tx_disable(np->dev); | |
6425 | } | |
6426 | ||
6427 | static void niu_netif_start(struct niu *np) | |
6428 | { | |
6429 | /* NOTE: unconditional netif_wake_queue is only appropriate | |
6430 | * so long as all callers are assured to have free tx slots | |
6431 | * (such as after niu_init_hw). | |
6432 | */ | |
b4c21639 | 6433 | netif_tx_wake_all_queues(np->dev); |
a3138df9 DM |
6434 | |
6435 | niu_enable_napi(np); | |
6436 | ||
6437 | niu_enable_interrupts(np, 1); | |
6438 | } | |
6439 | ||
cff502a3 SB |
6440 | static void niu_reset_buffers(struct niu *np) |
6441 | { | |
6442 | int i, j, k, err; | |
6443 | ||
6444 | if (np->rx_rings) { | |
6445 | for (i = 0; i < np->num_rx_rings; i++) { | |
6446 | struct rx_ring_info *rp = &np->rx_rings[i]; | |
6447 | ||
6448 | for (j = 0, k = 0; j < MAX_RBR_RING_SIZE; j++) { | |
6449 | struct page *page; | |
6450 | ||
6451 | page = rp->rxhash[j]; | |
6452 | while (page) { | |
6453 | struct page *next = | |
6454 | (struct page *) page->mapping; | |
6455 | u64 base = page->index; | |
6456 | base = base >> RBR_DESCR_ADDR_SHIFT; | |
6457 | rp->rbr[k++] = cpu_to_le32(base); | |
6458 | page = next; | |
6459 | } | |
6460 | } | |
6461 | for (; k < MAX_RBR_RING_SIZE; k++) { | |
6462 | err = niu_rbr_add_page(np, rp, GFP_ATOMIC, k); | |
6463 | if (unlikely(err)) | |
6464 | break; | |
6465 | } | |
6466 | ||
6467 | rp->rbr_index = rp->rbr_table_size - 1; | |
6468 | rp->rcr_index = 0; | |
6469 | rp->rbr_pending = 0; | |
6470 | rp->rbr_refill_pending = 0; | |
6471 | } | |
6472 | } | |
6473 | if (np->tx_rings) { | |
6474 | for (i = 0; i < np->num_tx_rings; i++) { | |
6475 | struct tx_ring_info *rp = &np->tx_rings[i]; | |
6476 | ||
6477 | for (j = 0; j < MAX_TX_RING_SIZE; j++) { | |
6478 | if (rp->tx_buffs[j].skb) | |
6479 | (void) release_tx_packet(np, rp, j); | |
6480 | } | |
6481 | ||
6482 | rp->pending = MAX_TX_RING_SIZE; | |
6483 | rp->prod = 0; | |
6484 | rp->cons = 0; | |
6485 | rp->wrap_bit = 0; | |
6486 | } | |
6487 | } | |
6488 | } | |
6489 | ||
a3138df9 DM |
6490 | static void niu_reset_task(struct work_struct *work) |
6491 | { | |
6492 | struct niu *np = container_of(work, struct niu, reset_task); | |
6493 | unsigned long flags; | |
6494 | int err; | |
6495 | ||
6496 | spin_lock_irqsave(&np->lock, flags); | |
6497 | if (!netif_running(np->dev)) { | |
6498 | spin_unlock_irqrestore(&np->lock, flags); | |
6499 | return; | |
6500 | } | |
6501 | ||
6502 | spin_unlock_irqrestore(&np->lock, flags); | |
6503 | ||
6504 | del_timer_sync(&np->timer); | |
6505 | ||
6506 | niu_netif_stop(np); | |
6507 | ||
6508 | spin_lock_irqsave(&np->lock, flags); | |
6509 | ||
6510 | niu_stop_hw(np); | |
6511 | ||
cff502a3 SB |
6512 | spin_unlock_irqrestore(&np->lock, flags); |
6513 | ||
6514 | niu_reset_buffers(np); | |
6515 | ||
6516 | spin_lock_irqsave(&np->lock, flags); | |
6517 | ||
a3138df9 DM |
6518 | err = niu_init_hw(np); |
6519 | if (!err) { | |
6520 | np->timer.expires = jiffies + HZ; | |
6521 | add_timer(&np->timer); | |
6522 | niu_netif_start(np); | |
6523 | } | |
6524 | ||
6525 | spin_unlock_irqrestore(&np->lock, flags); | |
6526 | } | |
6527 | ||
6528 | static void niu_tx_timeout(struct net_device *dev) | |
6529 | { | |
6530 | struct niu *np = netdev_priv(dev); | |
6531 | ||
f10a1f2e | 6532 | dev_err(np->device, "%s: Transmit timed out, resetting\n", |
a3138df9 DM |
6533 | dev->name); |
6534 | ||
6535 | schedule_work(&np->reset_task); | |
6536 | } | |
6537 | ||
6538 | static void niu_set_txd(struct tx_ring_info *rp, int index, | |
6539 | u64 mapping, u64 len, u64 mark, | |
6540 | u64 n_frags) | |
6541 | { | |
6542 | __le64 *desc = &rp->descr[index]; | |
6543 | ||
6544 | *desc = cpu_to_le64(mark | | |
6545 | (n_frags << TX_DESC_NUM_PTR_SHIFT) | | |
6546 | (len << TX_DESC_TR_LEN_SHIFT) | | |
6547 | (mapping & TX_DESC_SAD)); | |
6548 | } | |
6549 | ||
6550 | static u64 niu_compute_tx_flags(struct sk_buff *skb, struct ethhdr *ehdr, | |
6551 | u64 pad_bytes, u64 len) | |
6552 | { | |
6553 | u16 eth_proto, eth_proto_inner; | |
6554 | u64 csum_bits, l3off, ihl, ret; | |
6555 | u8 ip_proto; | |
6556 | int ipv6; | |
6557 | ||
6558 | eth_proto = be16_to_cpu(ehdr->h_proto); | |
6559 | eth_proto_inner = eth_proto; | |
6560 | if (eth_proto == ETH_P_8021Q) { | |
6561 | struct vlan_ethhdr *vp = (struct vlan_ethhdr *) ehdr; | |
6562 | __be16 val = vp->h_vlan_encapsulated_proto; | |
6563 | ||
6564 | eth_proto_inner = be16_to_cpu(val); | |
6565 | } | |
6566 | ||
6567 | ipv6 = ihl = 0; | |
6568 | switch (skb->protocol) { | |
09640e63 | 6569 | case cpu_to_be16(ETH_P_IP): |
a3138df9 DM |
6570 | ip_proto = ip_hdr(skb)->protocol; |
6571 | ihl = ip_hdr(skb)->ihl; | |
6572 | break; | |
09640e63 | 6573 | case cpu_to_be16(ETH_P_IPV6): |
a3138df9 DM |
6574 | ip_proto = ipv6_hdr(skb)->nexthdr; |
6575 | ihl = (40 >> 2); | |
6576 | ipv6 = 1; | |
6577 | break; | |
6578 | default: | |
6579 | ip_proto = ihl = 0; | |
6580 | break; | |
6581 | } | |
6582 | ||
6583 | csum_bits = TXHDR_CSUM_NONE; | |
6584 | if (skb->ip_summed == CHECKSUM_PARTIAL) { | |
6585 | u64 start, stuff; | |
6586 | ||
6587 | csum_bits = (ip_proto == IPPROTO_TCP ? | |
6588 | TXHDR_CSUM_TCP : | |
6589 | (ip_proto == IPPROTO_UDP ? | |
6590 | TXHDR_CSUM_UDP : TXHDR_CSUM_SCTP)); | |
6591 | ||
6592 | start = skb_transport_offset(skb) - | |
6593 | (pad_bytes + sizeof(struct tx_pkt_hdr)); | |
6594 | stuff = start + skb->csum_offset; | |
6595 | ||
6596 | csum_bits |= (start / 2) << TXHDR_L4START_SHIFT; | |
6597 | csum_bits |= (stuff / 2) << TXHDR_L4STUFF_SHIFT; | |
6598 | } | |
6599 | ||
6600 | l3off = skb_network_offset(skb) - | |
6601 | (pad_bytes + sizeof(struct tx_pkt_hdr)); | |
6602 | ||
6603 | ret = (((pad_bytes / 2) << TXHDR_PAD_SHIFT) | | |
6604 | (len << TXHDR_LEN_SHIFT) | | |
6605 | ((l3off / 2) << TXHDR_L3START_SHIFT) | | |
6606 | (ihl << TXHDR_IHL_SHIFT) | | |
6607 | ((eth_proto_inner < 1536) ? TXHDR_LLC : 0) | | |
6608 | ((eth_proto == ETH_P_8021Q) ? TXHDR_VLAN : 0) | | |
6609 | (ipv6 ? TXHDR_IP_VER : 0) | | |
6610 | csum_bits); | |
6611 | ||
6612 | return ret; | |
6613 | } | |
6614 | ||
61357325 SH |
6615 | static netdev_tx_t niu_start_xmit(struct sk_buff *skb, |
6616 | struct net_device *dev) | |
a3138df9 DM |
6617 | { |
6618 | struct niu *np = netdev_priv(dev); | |
6619 | unsigned long align, headroom; | |
b4c21639 | 6620 | struct netdev_queue *txq; |
a3138df9 DM |
6621 | struct tx_ring_info *rp; |
6622 | struct tx_pkt_hdr *tp; | |
6623 | unsigned int len, nfg; | |
6624 | struct ethhdr *ehdr; | |
6625 | int prod, i, tlen; | |
6626 | u64 mapping, mrk; | |
6627 | ||
b4c21639 DM |
6628 | i = skb_get_queue_mapping(skb); |
6629 | rp = &np->tx_rings[i]; | |
6630 | txq = netdev_get_tx_queue(dev, i); | |
a3138df9 DM |
6631 | |
6632 | if (niu_tx_avail(rp) <= (skb_shinfo(skb)->nr_frags + 1)) { | |
b4c21639 | 6633 | netif_tx_stop_queue(txq); |
f10a1f2e | 6634 | dev_err(np->device, "%s: BUG! Tx ring full when queue awake!\n", dev->name); |
a3138df9 DM |
6635 | rp->tx_errors++; |
6636 | return NETDEV_TX_BUSY; | |
6637 | } | |
6638 | ||
6639 | if (skb->len < ETH_ZLEN) { | |
6640 | unsigned int pad_bytes = ETH_ZLEN - skb->len; | |
6641 | ||
6642 | if (skb_pad(skb, pad_bytes)) | |
6643 | goto out; | |
6644 | skb_put(skb, pad_bytes); | |
6645 | } | |
6646 | ||
6647 | len = sizeof(struct tx_pkt_hdr) + 15; | |
6648 | if (skb_headroom(skb) < len) { | |
6649 | struct sk_buff *skb_new; | |
6650 | ||
6651 | skb_new = skb_realloc_headroom(skb, len); | |
6652 | if (!skb_new) { | |
6653 | rp->tx_errors++; | |
6654 | goto out_drop; | |
6655 | } | |
6656 | kfree_skb(skb); | |
6657 | skb = skb_new; | |
3ebebccf DM |
6658 | } else |
6659 | skb_orphan(skb); | |
a3138df9 DM |
6660 | |
6661 | align = ((unsigned long) skb->data & (16 - 1)); | |
6662 | headroom = align + sizeof(struct tx_pkt_hdr); | |
6663 | ||
6664 | ehdr = (struct ethhdr *) skb->data; | |
6665 | tp = (struct tx_pkt_hdr *) skb_push(skb, headroom); | |
6666 | ||
6667 | len = skb->len - sizeof(struct tx_pkt_hdr); | |
6668 | tp->flags = cpu_to_le64(niu_compute_tx_flags(skb, ehdr, align, len)); | |
6669 | tp->resv = 0; | |
6670 | ||
6671 | len = skb_headlen(skb); | |
6672 | mapping = np->ops->map_single(np->device, skb->data, | |
6673 | len, DMA_TO_DEVICE); | |
6674 | ||
6675 | prod = rp->prod; | |
6676 | ||
6677 | rp->tx_buffs[prod].skb = skb; | |
6678 | rp->tx_buffs[prod].mapping = mapping; | |
6679 | ||
6680 | mrk = TX_DESC_SOP; | |
6681 | if (++rp->mark_counter == rp->mark_freq) { | |
6682 | rp->mark_counter = 0; | |
6683 | mrk |= TX_DESC_MARK; | |
6684 | rp->mark_pending++; | |
6685 | } | |
6686 | ||
6687 | tlen = len; | |
6688 | nfg = skb_shinfo(skb)->nr_frags; | |
6689 | while (tlen > 0) { | |
6690 | tlen -= MAX_TX_DESC_LEN; | |
6691 | nfg++; | |
6692 | } | |
6693 | ||
6694 | while (len > 0) { | |
6695 | unsigned int this_len = len; | |
6696 | ||
6697 | if (this_len > MAX_TX_DESC_LEN) | |
6698 | this_len = MAX_TX_DESC_LEN; | |
6699 | ||
6700 | niu_set_txd(rp, prod, mapping, this_len, mrk, nfg); | |
6701 | mrk = nfg = 0; | |
6702 | ||
6703 | prod = NEXT_TX(rp, prod); | |
6704 | mapping += this_len; | |
6705 | len -= this_len; | |
6706 | } | |
6707 | ||
6708 | for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) { | |
6709 | skb_frag_t *frag = &skb_shinfo(skb)->frags[i]; | |
6710 | ||
6711 | len = frag->size; | |
6712 | mapping = np->ops->map_page(np->device, frag->page, | |
6713 | frag->page_offset, len, | |
6714 | DMA_TO_DEVICE); | |
6715 | ||
6716 | rp->tx_buffs[prod].skb = NULL; | |
6717 | rp->tx_buffs[prod].mapping = mapping; | |
6718 | ||
6719 | niu_set_txd(rp, prod, mapping, len, 0, 0); | |
6720 | ||
6721 | prod = NEXT_TX(rp, prod); | |
6722 | } | |
6723 | ||
6724 | if (prod < rp->prod) | |
6725 | rp->wrap_bit ^= TX_RING_KICK_WRAP; | |
6726 | rp->prod = prod; | |
6727 | ||
6728 | nw64(TX_RING_KICK(rp->tx_channel), rp->wrap_bit | (prod << 3)); | |
6729 | ||
6730 | if (unlikely(niu_tx_avail(rp) <= (MAX_SKB_FRAGS + 1))) { | |
b4c21639 | 6731 | netif_tx_stop_queue(txq); |
a3138df9 | 6732 | if (niu_tx_avail(rp) > NIU_TX_WAKEUP_THRESH(rp)) |
b4c21639 | 6733 | netif_tx_wake_queue(txq); |
a3138df9 DM |
6734 | } |
6735 | ||
a3138df9 DM |
6736 | out: |
6737 | return NETDEV_TX_OK; | |
6738 | ||
6739 | out_drop: | |
6740 | rp->tx_errors++; | |
6741 | kfree_skb(skb); | |
6742 | goto out; | |
6743 | } | |
6744 | ||
6745 | static int niu_change_mtu(struct net_device *dev, int new_mtu) | |
6746 | { | |
6747 | struct niu *np = netdev_priv(dev); | |
6748 | int err, orig_jumbo, new_jumbo; | |
6749 | ||
6750 | if (new_mtu < 68 || new_mtu > NIU_MAX_MTU) | |
6751 | return -EINVAL; | |
6752 | ||
6753 | orig_jumbo = (dev->mtu > ETH_DATA_LEN); | |
6754 | new_jumbo = (new_mtu > ETH_DATA_LEN); | |
6755 | ||
6756 | dev->mtu = new_mtu; | |
6757 | ||
6758 | if (!netif_running(dev) || | |
6759 | (orig_jumbo == new_jumbo)) | |
6760 | return 0; | |
6761 | ||
6762 | niu_full_shutdown(np, dev); | |
6763 | ||
6764 | niu_free_channels(np); | |
6765 | ||
6766 | niu_enable_napi(np); | |
6767 | ||
6768 | err = niu_alloc_channels(np); | |
6769 | if (err) | |
6770 | return err; | |
6771 | ||
6772 | spin_lock_irq(&np->lock); | |
6773 | ||
6774 | err = niu_init_hw(np); | |
6775 | if (!err) { | |
6776 | init_timer(&np->timer); | |
6777 | np->timer.expires = jiffies + HZ; | |
6778 | np->timer.data = (unsigned long) np; | |
6779 | np->timer.function = niu_timer; | |
6780 | ||
6781 | err = niu_enable_interrupts(np, 1); | |
6782 | if (err) | |
6783 | niu_stop_hw(np); | |
6784 | } | |
6785 | ||
6786 | spin_unlock_irq(&np->lock); | |
6787 | ||
6788 | if (!err) { | |
b4c21639 | 6789 | netif_tx_start_all_queues(dev); |
a3138df9 DM |
6790 | if (np->link_config.loopback_mode != LOOPBACK_DISABLED) |
6791 | netif_carrier_on(dev); | |
6792 | ||
6793 | add_timer(&np->timer); | |
6794 | } | |
6795 | ||
6796 | return err; | |
6797 | } | |
6798 | ||
6799 | static void niu_get_drvinfo(struct net_device *dev, | |
6800 | struct ethtool_drvinfo *info) | |
6801 | { | |
6802 | struct niu *np = netdev_priv(dev); | |
6803 | struct niu_vpd *vpd = &np->vpd; | |
6804 | ||
6805 | strcpy(info->driver, DRV_MODULE_NAME); | |
6806 | strcpy(info->version, DRV_MODULE_VERSION); | |
6807 | sprintf(info->fw_version, "%d.%d", | |
6808 | vpd->fcode_major, vpd->fcode_minor); | |
6809 | if (np->parent->plat_type != PLAT_TYPE_NIU) | |
6810 | strcpy(info->bus_info, pci_name(np->pdev)); | |
6811 | } | |
6812 | ||
6813 | static int niu_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) | |
6814 | { | |
6815 | struct niu *np = netdev_priv(dev); | |
6816 | struct niu_link_config *lp; | |
6817 | ||
6818 | lp = &np->link_config; | |
6819 | ||
6820 | memset(cmd, 0, sizeof(*cmd)); | |
6821 | cmd->phy_address = np->phy_addr; | |
6822 | cmd->supported = lp->supported; | |
38bb045d CB |
6823 | cmd->advertising = lp->active_advertising; |
6824 | cmd->autoneg = lp->active_autoneg; | |
a3138df9 DM |
6825 | cmd->speed = lp->active_speed; |
6826 | cmd->duplex = lp->active_duplex; | |
38bb045d CB |
6827 | cmd->port = (np->flags & NIU_FLAGS_FIBER) ? PORT_FIBRE : PORT_TP; |
6828 | cmd->transceiver = (np->flags & NIU_FLAGS_XCVR_SERDES) ? | |
6829 | XCVR_EXTERNAL : XCVR_INTERNAL; | |
a3138df9 DM |
6830 | |
6831 | return 0; | |
6832 | } | |
6833 | ||
6834 | static int niu_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) | |
6835 | { | |
38bb045d CB |
6836 | struct niu *np = netdev_priv(dev); |
6837 | struct niu_link_config *lp = &np->link_config; | |
6838 | ||
6839 | lp->advertising = cmd->advertising; | |
6840 | lp->speed = cmd->speed; | |
6841 | lp->duplex = cmd->duplex; | |
6842 | lp->autoneg = cmd->autoneg; | |
6843 | return niu_init_link(np); | |
a3138df9 DM |
6844 | } |
6845 | ||
6846 | static u32 niu_get_msglevel(struct net_device *dev) | |
6847 | { | |
6848 | struct niu *np = netdev_priv(dev); | |
6849 | return np->msg_enable; | |
6850 | } | |
6851 | ||
6852 | static void niu_set_msglevel(struct net_device *dev, u32 value) | |
6853 | { | |
6854 | struct niu *np = netdev_priv(dev); | |
6855 | np->msg_enable = value; | |
6856 | } | |
6857 | ||
38bb045d CB |
6858 | static int niu_nway_reset(struct net_device *dev) |
6859 | { | |
6860 | struct niu *np = netdev_priv(dev); | |
6861 | ||
6862 | if (np->link_config.autoneg) | |
6863 | return niu_init_link(np); | |
6864 | ||
6865 | return 0; | |
6866 | } | |
6867 | ||
a3138df9 DM |
6868 | static int niu_get_eeprom_len(struct net_device *dev) |
6869 | { | |
6870 | struct niu *np = netdev_priv(dev); | |
6871 | ||
6872 | return np->eeprom_len; | |
6873 | } | |
6874 | ||
6875 | static int niu_get_eeprom(struct net_device *dev, | |
6876 | struct ethtool_eeprom *eeprom, u8 *data) | |
6877 | { | |
6878 | struct niu *np = netdev_priv(dev); | |
6879 | u32 offset, len, val; | |
6880 | ||
6881 | offset = eeprom->offset; | |
6882 | len = eeprom->len; | |
6883 | ||
6884 | if (offset + len < offset) | |
6885 | return -EINVAL; | |
6886 | if (offset >= np->eeprom_len) | |
6887 | return -EINVAL; | |
6888 | if (offset + len > np->eeprom_len) | |
6889 | len = eeprom->len = np->eeprom_len - offset; | |
6890 | ||
6891 | if (offset & 3) { | |
6892 | u32 b_offset, b_count; | |
6893 | ||
6894 | b_offset = offset & 3; | |
6895 | b_count = 4 - b_offset; | |
6896 | if (b_count > len) | |
6897 | b_count = len; | |
6898 | ||
6899 | val = nr64(ESPC_NCR((offset - b_offset) / 4)); | |
6900 | memcpy(data, ((char *)&val) + b_offset, b_count); | |
6901 | data += b_count; | |
6902 | len -= b_count; | |
6903 | offset += b_count; | |
6904 | } | |
6905 | while (len >= 4) { | |
6906 | val = nr64(ESPC_NCR(offset / 4)); | |
6907 | memcpy(data, &val, 4); | |
6908 | data += 4; | |
6909 | len -= 4; | |
6910 | offset += 4; | |
6911 | } | |
6912 | if (len) { | |
6913 | val = nr64(ESPC_NCR(offset / 4)); | |
6914 | memcpy(data, &val, len); | |
6915 | } | |
6916 | return 0; | |
6917 | } | |
6918 | ||
2d96cf8c SB |
6919 | static void niu_ethflow_to_l3proto(int flow_type, u8 *pid) |
6920 | { | |
6921 | switch (flow_type) { | |
6922 | case TCP_V4_FLOW: | |
6923 | case TCP_V6_FLOW: | |
6924 | *pid = IPPROTO_TCP; | |
6925 | break; | |
6926 | case UDP_V4_FLOW: | |
6927 | case UDP_V6_FLOW: | |
6928 | *pid = IPPROTO_UDP; | |
6929 | break; | |
6930 | case SCTP_V4_FLOW: | |
6931 | case SCTP_V6_FLOW: | |
6932 | *pid = IPPROTO_SCTP; | |
6933 | break; | |
6934 | case AH_V4_FLOW: | |
6935 | case AH_V6_FLOW: | |
6936 | *pid = IPPROTO_AH; | |
6937 | break; | |
6938 | case ESP_V4_FLOW: | |
6939 | case ESP_V6_FLOW: | |
6940 | *pid = IPPROTO_ESP; | |
6941 | break; | |
6942 | default: | |
6943 | *pid = 0; | |
6944 | break; | |
6945 | } | |
6946 | } | |
6947 | ||
6948 | static int niu_class_to_ethflow(u64 class, int *flow_type) | |
6949 | { | |
6950 | switch (class) { | |
6951 | case CLASS_CODE_TCP_IPV4: | |
6952 | *flow_type = TCP_V4_FLOW; | |
6953 | break; | |
6954 | case CLASS_CODE_UDP_IPV4: | |
6955 | *flow_type = UDP_V4_FLOW; | |
6956 | break; | |
6957 | case CLASS_CODE_AH_ESP_IPV4: | |
6958 | *flow_type = AH_V4_FLOW; | |
6959 | break; | |
6960 | case CLASS_CODE_SCTP_IPV4: | |
6961 | *flow_type = SCTP_V4_FLOW; | |
6962 | break; | |
6963 | case CLASS_CODE_TCP_IPV6: | |
6964 | *flow_type = TCP_V6_FLOW; | |
6965 | break; | |
6966 | case CLASS_CODE_UDP_IPV6: | |
6967 | *flow_type = UDP_V6_FLOW; | |
6968 | break; | |
6969 | case CLASS_CODE_AH_ESP_IPV6: | |
6970 | *flow_type = AH_V6_FLOW; | |
6971 | break; | |
6972 | case CLASS_CODE_SCTP_IPV6: | |
6973 | *flow_type = SCTP_V6_FLOW; | |
6974 | break; | |
6975 | case CLASS_CODE_USER_PROG1: | |
6976 | case CLASS_CODE_USER_PROG2: | |
6977 | case CLASS_CODE_USER_PROG3: | |
6978 | case CLASS_CODE_USER_PROG4: | |
6979 | *flow_type = IP_USER_FLOW; | |
6980 | break; | |
6981 | default: | |
6982 | return 0; | |
6983 | } | |
6984 | ||
6985 | return 1; | |
6986 | } | |
6987 | ||
b4653e99 SB |
6988 | static int niu_ethflow_to_class(int flow_type, u64 *class) |
6989 | { | |
6990 | switch (flow_type) { | |
6991 | case TCP_V4_FLOW: | |
6992 | *class = CLASS_CODE_TCP_IPV4; | |
6993 | break; | |
6994 | case UDP_V4_FLOW: | |
6995 | *class = CLASS_CODE_UDP_IPV4; | |
6996 | break; | |
2d96cf8c SB |
6997 | case AH_V4_FLOW: |
6998 | case ESP_V4_FLOW: | |
b4653e99 SB |
6999 | *class = CLASS_CODE_AH_ESP_IPV4; |
7000 | break; | |
7001 | case SCTP_V4_FLOW: | |
7002 | *class = CLASS_CODE_SCTP_IPV4; | |
7003 | break; | |
7004 | case TCP_V6_FLOW: | |
7005 | *class = CLASS_CODE_TCP_IPV6; | |
7006 | break; | |
7007 | case UDP_V6_FLOW: | |
7008 | *class = CLASS_CODE_UDP_IPV6; | |
7009 | break; | |
2d96cf8c SB |
7010 | case AH_V6_FLOW: |
7011 | case ESP_V6_FLOW: | |
b4653e99 SB |
7012 | *class = CLASS_CODE_AH_ESP_IPV6; |
7013 | break; | |
7014 | case SCTP_V6_FLOW: | |
7015 | *class = CLASS_CODE_SCTP_IPV6; | |
7016 | break; | |
7017 | default: | |
38c080ff | 7018 | return 0; |
b4653e99 SB |
7019 | } |
7020 | ||
7021 | return 1; | |
7022 | } | |
7023 | ||
7024 | static u64 niu_flowkey_to_ethflow(u64 flow_key) | |
7025 | { | |
7026 | u64 ethflow = 0; | |
7027 | ||
b4653e99 SB |
7028 | if (flow_key & FLOW_KEY_L2DA) |
7029 | ethflow |= RXH_L2DA; | |
7030 | if (flow_key & FLOW_KEY_VLAN) | |
7031 | ethflow |= RXH_VLAN; | |
7032 | if (flow_key & FLOW_KEY_IPSA) | |
7033 | ethflow |= RXH_IP_SRC; | |
7034 | if (flow_key & FLOW_KEY_IPDA) | |
7035 | ethflow |= RXH_IP_DST; | |
7036 | if (flow_key & FLOW_KEY_PROTO) | |
7037 | ethflow |= RXH_L3_PROTO; | |
7038 | if (flow_key & (FLOW_KEY_L4_BYTE12 << FLOW_KEY_L4_0_SHIFT)) | |
7039 | ethflow |= RXH_L4_B_0_1; | |
7040 | if (flow_key & (FLOW_KEY_L4_BYTE12 << FLOW_KEY_L4_1_SHIFT)) | |
7041 | ethflow |= RXH_L4_B_2_3; | |
7042 | ||
7043 | return ethflow; | |
7044 | ||
7045 | } | |
7046 | ||
7047 | static int niu_ethflow_to_flowkey(u64 ethflow, u64 *flow_key) | |
7048 | { | |
7049 | u64 key = 0; | |
7050 | ||
b4653e99 SB |
7051 | if (ethflow & RXH_L2DA) |
7052 | key |= FLOW_KEY_L2DA; | |
7053 | if (ethflow & RXH_VLAN) | |
7054 | key |= FLOW_KEY_VLAN; | |
7055 | if (ethflow & RXH_IP_SRC) | |
7056 | key |= FLOW_KEY_IPSA; | |
7057 | if (ethflow & RXH_IP_DST) | |
7058 | key |= FLOW_KEY_IPDA; | |
7059 | if (ethflow & RXH_L3_PROTO) | |
7060 | key |= FLOW_KEY_PROTO; | |
7061 | if (ethflow & RXH_L4_B_0_1) | |
7062 | key |= (FLOW_KEY_L4_BYTE12 << FLOW_KEY_L4_0_SHIFT); | |
7063 | if (ethflow & RXH_L4_B_2_3) | |
7064 | key |= (FLOW_KEY_L4_BYTE12 << FLOW_KEY_L4_1_SHIFT); | |
7065 | ||
7066 | *flow_key = key; | |
7067 | ||
7068 | return 1; | |
7069 | ||
7070 | } | |
7071 | ||
2d96cf8c | 7072 | static int niu_get_hash_opts(struct niu *np, struct ethtool_rxnfc *nfc) |
b4653e99 | 7073 | { |
b4653e99 SB |
7074 | u64 class; |
7075 | ||
2d96cf8c | 7076 | nfc->data = 0; |
b4653e99 | 7077 | |
2d96cf8c | 7078 | if (!niu_ethflow_to_class(nfc->flow_type, &class)) |
b4653e99 SB |
7079 | return -EINVAL; |
7080 | ||
7081 | if (np->parent->tcam_key[class - CLASS_CODE_USER_PROG1] & | |
7082 | TCAM_KEY_DISC) | |
2d96cf8c | 7083 | nfc->data = RXH_DISCARD; |
b4653e99 | 7084 | else |
2d96cf8c | 7085 | nfc->data = niu_flowkey_to_ethflow(np->parent->flow_key[class - |
b4653e99 SB |
7086 | CLASS_CODE_USER_PROG1]); |
7087 | return 0; | |
7088 | } | |
7089 | ||
2d96cf8c SB |
7090 | static void niu_get_ip4fs_from_tcam_key(struct niu_tcam_entry *tp, |
7091 | struct ethtool_rx_flow_spec *fsp) | |
7092 | { | |
7093 | ||
7094 | fsp->h_u.tcp_ip4_spec.ip4src = (tp->key[3] & TCAM_V4KEY3_SADDR) >> | |
7095 | TCAM_V4KEY3_SADDR_SHIFT; | |
7096 | fsp->h_u.tcp_ip4_spec.ip4dst = (tp->key[3] & TCAM_V4KEY3_DADDR) >> | |
7097 | TCAM_V4KEY3_DADDR_SHIFT; | |
7098 | fsp->m_u.tcp_ip4_spec.ip4src = (tp->key_mask[3] & TCAM_V4KEY3_SADDR) >> | |
7099 | TCAM_V4KEY3_SADDR_SHIFT; | |
7100 | fsp->m_u.tcp_ip4_spec.ip4dst = (tp->key_mask[3] & TCAM_V4KEY3_DADDR) >> | |
7101 | TCAM_V4KEY3_DADDR_SHIFT; | |
7102 | ||
7103 | fsp->h_u.tcp_ip4_spec.ip4src = | |
7104 | cpu_to_be32(fsp->h_u.tcp_ip4_spec.ip4src); | |
7105 | fsp->m_u.tcp_ip4_spec.ip4src = | |
7106 | cpu_to_be32(fsp->m_u.tcp_ip4_spec.ip4src); | |
7107 | fsp->h_u.tcp_ip4_spec.ip4dst = | |
7108 | cpu_to_be32(fsp->h_u.tcp_ip4_spec.ip4dst); | |
7109 | fsp->m_u.tcp_ip4_spec.ip4dst = | |
7110 | cpu_to_be32(fsp->m_u.tcp_ip4_spec.ip4dst); | |
7111 | ||
7112 | fsp->h_u.tcp_ip4_spec.tos = (tp->key[2] & TCAM_V4KEY2_TOS) >> | |
7113 | TCAM_V4KEY2_TOS_SHIFT; | |
7114 | fsp->m_u.tcp_ip4_spec.tos = (tp->key_mask[2] & TCAM_V4KEY2_TOS) >> | |
7115 | TCAM_V4KEY2_TOS_SHIFT; | |
7116 | ||
7117 | switch (fsp->flow_type) { | |
7118 | case TCP_V4_FLOW: | |
7119 | case UDP_V4_FLOW: | |
7120 | case SCTP_V4_FLOW: | |
7121 | fsp->h_u.tcp_ip4_spec.psrc = | |
7122 | ((tp->key[2] & TCAM_V4KEY2_PORT_SPI) >> | |
7123 | TCAM_V4KEY2_PORT_SPI_SHIFT) >> 16; | |
7124 | fsp->h_u.tcp_ip4_spec.pdst = | |
7125 | ((tp->key[2] & TCAM_V4KEY2_PORT_SPI) >> | |
7126 | TCAM_V4KEY2_PORT_SPI_SHIFT) & 0xffff; | |
7127 | fsp->m_u.tcp_ip4_spec.psrc = | |
7128 | ((tp->key_mask[2] & TCAM_V4KEY2_PORT_SPI) >> | |
7129 | TCAM_V4KEY2_PORT_SPI_SHIFT) >> 16; | |
7130 | fsp->m_u.tcp_ip4_spec.pdst = | |
7131 | ((tp->key_mask[2] & TCAM_V4KEY2_PORT_SPI) >> | |
7132 | TCAM_V4KEY2_PORT_SPI_SHIFT) & 0xffff; | |
7133 | ||
7134 | fsp->h_u.tcp_ip4_spec.psrc = | |
7135 | cpu_to_be16(fsp->h_u.tcp_ip4_spec.psrc); | |
7136 | fsp->h_u.tcp_ip4_spec.pdst = | |
7137 | cpu_to_be16(fsp->h_u.tcp_ip4_spec.pdst); | |
7138 | fsp->m_u.tcp_ip4_spec.psrc = | |
7139 | cpu_to_be16(fsp->m_u.tcp_ip4_spec.psrc); | |
7140 | fsp->m_u.tcp_ip4_spec.pdst = | |
7141 | cpu_to_be16(fsp->m_u.tcp_ip4_spec.pdst); | |
7142 | break; | |
7143 | case AH_V4_FLOW: | |
7144 | case ESP_V4_FLOW: | |
7145 | fsp->h_u.ah_ip4_spec.spi = | |
7146 | (tp->key[2] & TCAM_V4KEY2_PORT_SPI) >> | |
7147 | TCAM_V4KEY2_PORT_SPI_SHIFT; | |
7148 | fsp->m_u.ah_ip4_spec.spi = | |
7149 | (tp->key_mask[2] & TCAM_V4KEY2_PORT_SPI) >> | |
7150 | TCAM_V4KEY2_PORT_SPI_SHIFT; | |
7151 | ||
7152 | fsp->h_u.ah_ip4_spec.spi = | |
7153 | cpu_to_be32(fsp->h_u.ah_ip4_spec.spi); | |
7154 | fsp->m_u.ah_ip4_spec.spi = | |
7155 | cpu_to_be32(fsp->m_u.ah_ip4_spec.spi); | |
7156 | break; | |
7157 | case IP_USER_FLOW: | |
7158 | fsp->h_u.usr_ip4_spec.l4_4_bytes = | |
7159 | (tp->key[2] & TCAM_V4KEY2_PORT_SPI) >> | |
7160 | TCAM_V4KEY2_PORT_SPI_SHIFT; | |
7161 | fsp->m_u.usr_ip4_spec.l4_4_bytes = | |
7162 | (tp->key_mask[2] & TCAM_V4KEY2_PORT_SPI) >> | |
7163 | TCAM_V4KEY2_PORT_SPI_SHIFT; | |
7164 | ||
7165 | fsp->h_u.usr_ip4_spec.l4_4_bytes = | |
7166 | cpu_to_be32(fsp->h_u.usr_ip4_spec.l4_4_bytes); | |
7167 | fsp->m_u.usr_ip4_spec.l4_4_bytes = | |
7168 | cpu_to_be32(fsp->m_u.usr_ip4_spec.l4_4_bytes); | |
7169 | ||
7170 | fsp->h_u.usr_ip4_spec.proto = | |
7171 | (tp->key[2] & TCAM_V4KEY2_PROTO) >> | |
7172 | TCAM_V4KEY2_PROTO_SHIFT; | |
7173 | fsp->m_u.usr_ip4_spec.proto = | |
7174 | (tp->key_mask[2] & TCAM_V4KEY2_PROTO) >> | |
7175 | TCAM_V4KEY2_PROTO_SHIFT; | |
7176 | ||
7177 | fsp->h_u.usr_ip4_spec.ip_ver = ETH_RX_NFC_IP4; | |
7178 | break; | |
7179 | default: | |
7180 | break; | |
7181 | } | |
7182 | } | |
7183 | ||
7184 | static int niu_get_ethtool_tcam_entry(struct niu *np, | |
7185 | struct ethtool_rxnfc *nfc) | |
7186 | { | |
7187 | struct niu_parent *parent = np->parent; | |
7188 | struct niu_tcam_entry *tp; | |
7189 | struct ethtool_rx_flow_spec *fsp = &nfc->fs; | |
7190 | u16 idx; | |
7191 | u64 class; | |
7192 | int ret = 0; | |
7193 | ||
7194 | idx = tcam_get_index(np, (u16)nfc->fs.location); | |
7195 | ||
7196 | tp = &parent->tcam[idx]; | |
7197 | if (!tp->valid) { | |
f10a1f2e JP |
7198 | netdev_info(np->dev, "niu%d: entry [%d] invalid for idx[%d]\n", |
7199 | parent->index, (u16)nfc->fs.location, idx); | |
2d96cf8c SB |
7200 | return -EINVAL; |
7201 | } | |
7202 | ||
7203 | /* fill the flow spec entry */ | |
7204 | class = (tp->key[0] & TCAM_V4KEY0_CLASS_CODE) >> | |
7205 | TCAM_V4KEY0_CLASS_CODE_SHIFT; | |
7206 | ret = niu_class_to_ethflow(class, &fsp->flow_type); | |
7207 | ||
7208 | if (ret < 0) { | |
f10a1f2e JP |
7209 | netdev_info(np->dev, "niu%d: niu_class_to_ethflow failed\n", |
7210 | parent->index); | |
2d96cf8c SB |
7211 | ret = -EINVAL; |
7212 | goto out; | |
7213 | } | |
7214 | ||
7215 | if (fsp->flow_type == AH_V4_FLOW || fsp->flow_type == AH_V6_FLOW) { | |
7216 | u32 proto = (tp->key[2] & TCAM_V4KEY2_PROTO) >> | |
7217 | TCAM_V4KEY2_PROTO_SHIFT; | |
7218 | if (proto == IPPROTO_ESP) { | |
7219 | if (fsp->flow_type == AH_V4_FLOW) | |
7220 | fsp->flow_type = ESP_V4_FLOW; | |
7221 | else | |
7222 | fsp->flow_type = ESP_V6_FLOW; | |
7223 | } | |
7224 | } | |
7225 | ||
7226 | switch (fsp->flow_type) { | |
7227 | case TCP_V4_FLOW: | |
7228 | case UDP_V4_FLOW: | |
7229 | case SCTP_V4_FLOW: | |
7230 | case AH_V4_FLOW: | |
7231 | case ESP_V4_FLOW: | |
7232 | niu_get_ip4fs_from_tcam_key(tp, fsp); | |
7233 | break; | |
7234 | case TCP_V6_FLOW: | |
7235 | case UDP_V6_FLOW: | |
7236 | case SCTP_V6_FLOW: | |
7237 | case AH_V6_FLOW: | |
7238 | case ESP_V6_FLOW: | |
7239 | /* Not yet implemented */ | |
7240 | ret = -EINVAL; | |
7241 | break; | |
7242 | case IP_USER_FLOW: | |
7243 | niu_get_ip4fs_from_tcam_key(tp, fsp); | |
7244 | break; | |
7245 | default: | |
7246 | ret = -EINVAL; | |
7247 | break; | |
7248 | } | |
7249 | ||
7250 | if (ret < 0) | |
7251 | goto out; | |
7252 | ||
7253 | if (tp->assoc_data & TCAM_ASSOCDATA_DISC) | |
7254 | fsp->ring_cookie = RX_CLS_FLOW_DISC; | |
7255 | else | |
7256 | fsp->ring_cookie = (tp->assoc_data & TCAM_ASSOCDATA_OFFSET) >> | |
7257 | TCAM_ASSOCDATA_OFFSET_SHIFT; | |
7258 | ||
7259 | /* put the tcam size here */ | |
7260 | nfc->data = tcam_get_size(np); | |
7261 | out: | |
7262 | return ret; | |
7263 | } | |
7264 | ||
7265 | static int niu_get_ethtool_tcam_all(struct niu *np, | |
7266 | struct ethtool_rxnfc *nfc, | |
7267 | u32 *rule_locs) | |
7268 | { | |
7269 | struct niu_parent *parent = np->parent; | |
7270 | struct niu_tcam_entry *tp; | |
7271 | int i, idx, cnt; | |
7272 | u16 n_entries; | |
7273 | unsigned long flags; | |
7274 | ||
7275 | ||
7276 | /* put the tcam size here */ | |
7277 | nfc->data = tcam_get_size(np); | |
7278 | ||
7279 | niu_lock_parent(np, flags); | |
7280 | n_entries = nfc->rule_cnt; | |
7281 | for (cnt = 0, i = 0; i < nfc->data; i++) { | |
7282 | idx = tcam_get_index(np, i); | |
7283 | tp = &parent->tcam[idx]; | |
7284 | if (!tp->valid) | |
7285 | continue; | |
7286 | rule_locs[cnt] = i; | |
7287 | cnt++; | |
7288 | } | |
7289 | niu_unlock_parent(np, flags); | |
7290 | ||
7291 | if (n_entries != cnt) { | |
7292 | /* print warning, this should not happen */ | |
f10a1f2e JP |
7293 | netdev_info(np->dev, "niu%d: In %s(): n_entries[%d] != cnt[%d]!!!\n", |
7294 | np->parent->index, __func__, n_entries, cnt); | |
2d96cf8c SB |
7295 | } |
7296 | ||
7297 | return 0; | |
7298 | } | |
7299 | ||
7300 | static int niu_get_nfc(struct net_device *dev, struct ethtool_rxnfc *cmd, | |
7301 | void *rule_locs) | |
b4653e99 SB |
7302 | { |
7303 | struct niu *np = netdev_priv(dev); | |
2d96cf8c SB |
7304 | int ret = 0; |
7305 | ||
7306 | switch (cmd->cmd) { | |
7307 | case ETHTOOL_GRXFH: | |
7308 | ret = niu_get_hash_opts(np, cmd); | |
7309 | break; | |
7310 | case ETHTOOL_GRXRINGS: | |
7311 | cmd->data = np->num_rx_rings; | |
7312 | break; | |
7313 | case ETHTOOL_GRXCLSRLCNT: | |
7314 | cmd->rule_cnt = tcam_get_valid_entry_cnt(np); | |
7315 | break; | |
7316 | case ETHTOOL_GRXCLSRULE: | |
7317 | ret = niu_get_ethtool_tcam_entry(np, cmd); | |
7318 | break; | |
7319 | case ETHTOOL_GRXCLSRLALL: | |
7320 | ret = niu_get_ethtool_tcam_all(np, cmd, (u32 *)rule_locs); | |
7321 | break; | |
7322 | default: | |
7323 | ret = -EINVAL; | |
7324 | break; | |
7325 | } | |
7326 | ||
7327 | return ret; | |
7328 | } | |
7329 | ||
7330 | static int niu_set_hash_opts(struct niu *np, struct ethtool_rxnfc *nfc) | |
7331 | { | |
b4653e99 SB |
7332 | u64 class; |
7333 | u64 flow_key = 0; | |
7334 | unsigned long flags; | |
7335 | ||
2d96cf8c | 7336 | if (!niu_ethflow_to_class(nfc->flow_type, &class)) |
b4653e99 SB |
7337 | return -EINVAL; |
7338 | ||
7339 | if (class < CLASS_CODE_USER_PROG1 || | |
7340 | class > CLASS_CODE_SCTP_IPV6) | |
7341 | return -EINVAL; | |
7342 | ||
2d96cf8c | 7343 | if (nfc->data & RXH_DISCARD) { |
b4653e99 SB |
7344 | niu_lock_parent(np, flags); |
7345 | flow_key = np->parent->tcam_key[class - | |
7346 | CLASS_CODE_USER_PROG1]; | |
7347 | flow_key |= TCAM_KEY_DISC; | |
7348 | nw64(TCAM_KEY(class - CLASS_CODE_USER_PROG1), flow_key); | |
7349 | np->parent->tcam_key[class - CLASS_CODE_USER_PROG1] = flow_key; | |
7350 | niu_unlock_parent(np, flags); | |
7351 | return 0; | |
7352 | } else { | |
7353 | /* Discard was set before, but is not set now */ | |
7354 | if (np->parent->tcam_key[class - CLASS_CODE_USER_PROG1] & | |
7355 | TCAM_KEY_DISC) { | |
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), | |
7361 | flow_key); | |
7362 | np->parent->tcam_key[class - CLASS_CODE_USER_PROG1] = | |
7363 | flow_key; | |
7364 | niu_unlock_parent(np, flags); | |
7365 | } | |
7366 | } | |
7367 | ||
2d96cf8c | 7368 | if (!niu_ethflow_to_flowkey(nfc->data, &flow_key)) |
b4653e99 SB |
7369 | return -EINVAL; |
7370 | ||
7371 | niu_lock_parent(np, flags); | |
7372 | nw64(FLOW_KEY(class - CLASS_CODE_USER_PROG1), flow_key); | |
7373 | np->parent->flow_key[class - CLASS_CODE_USER_PROG1] = flow_key; | |
7374 | niu_unlock_parent(np, flags); | |
7375 | ||
7376 | return 0; | |
7377 | } | |
7378 | ||
2d96cf8c SB |
7379 | static void niu_get_tcamkey_from_ip4fs(struct ethtool_rx_flow_spec *fsp, |
7380 | struct niu_tcam_entry *tp, | |
7381 | int l2_rdc_tab, u64 class) | |
7382 | { | |
7383 | u8 pid = 0; | |
7384 | u32 sip, dip, sipm, dipm, spi, spim; | |
7385 | u16 sport, dport, spm, dpm; | |
7386 | ||
7387 | sip = be32_to_cpu(fsp->h_u.tcp_ip4_spec.ip4src); | |
7388 | sipm = be32_to_cpu(fsp->m_u.tcp_ip4_spec.ip4src); | |
7389 | dip = be32_to_cpu(fsp->h_u.tcp_ip4_spec.ip4dst); | |
7390 | dipm = be32_to_cpu(fsp->m_u.tcp_ip4_spec.ip4dst); | |
7391 | ||
7392 | tp->key[0] = class << TCAM_V4KEY0_CLASS_CODE_SHIFT; | |
7393 | tp->key_mask[0] = TCAM_V4KEY0_CLASS_CODE; | |
7394 | tp->key[1] = (u64)l2_rdc_tab << TCAM_V4KEY1_L2RDCNUM_SHIFT; | |
7395 | tp->key_mask[1] = TCAM_V4KEY1_L2RDCNUM; | |
7396 | ||
7397 | tp->key[3] = (u64)sip << TCAM_V4KEY3_SADDR_SHIFT; | |
7398 | tp->key[3] |= dip; | |
7399 | ||
7400 | tp->key_mask[3] = (u64)sipm << TCAM_V4KEY3_SADDR_SHIFT; | |
7401 | tp->key_mask[3] |= dipm; | |
7402 | ||
7403 | tp->key[2] |= ((u64)fsp->h_u.tcp_ip4_spec.tos << | |
7404 | TCAM_V4KEY2_TOS_SHIFT); | |
7405 | tp->key_mask[2] |= ((u64)fsp->m_u.tcp_ip4_spec.tos << | |
7406 | TCAM_V4KEY2_TOS_SHIFT); | |
7407 | switch (fsp->flow_type) { | |
7408 | case TCP_V4_FLOW: | |
7409 | case UDP_V4_FLOW: | |
7410 | case SCTP_V4_FLOW: | |
7411 | sport = be16_to_cpu(fsp->h_u.tcp_ip4_spec.psrc); | |
7412 | spm = be16_to_cpu(fsp->m_u.tcp_ip4_spec.psrc); | |
7413 | dport = be16_to_cpu(fsp->h_u.tcp_ip4_spec.pdst); | |
7414 | dpm = be16_to_cpu(fsp->m_u.tcp_ip4_spec.pdst); | |
7415 | ||
7416 | tp->key[2] |= (((u64)sport << 16) | dport); | |
7417 | tp->key_mask[2] |= (((u64)spm << 16) | dpm); | |
7418 | niu_ethflow_to_l3proto(fsp->flow_type, &pid); | |
7419 | break; | |
7420 | case AH_V4_FLOW: | |
7421 | case ESP_V4_FLOW: | |
7422 | spi = be32_to_cpu(fsp->h_u.ah_ip4_spec.spi); | |
7423 | spim = be32_to_cpu(fsp->m_u.ah_ip4_spec.spi); | |
7424 | ||
7425 | tp->key[2] |= spi; | |
7426 | tp->key_mask[2] |= spim; | |
7427 | niu_ethflow_to_l3proto(fsp->flow_type, &pid); | |
7428 | break; | |
7429 | case IP_USER_FLOW: | |
7430 | spi = be32_to_cpu(fsp->h_u.usr_ip4_spec.l4_4_bytes); | |
7431 | spim = be32_to_cpu(fsp->m_u.usr_ip4_spec.l4_4_bytes); | |
7432 | ||
7433 | tp->key[2] |= spi; | |
7434 | tp->key_mask[2] |= spim; | |
7435 | pid = fsp->h_u.usr_ip4_spec.proto; | |
7436 | break; | |
7437 | default: | |
7438 | break; | |
7439 | } | |
7440 | ||
7441 | tp->key[2] |= ((u64)pid << TCAM_V4KEY2_PROTO_SHIFT); | |
7442 | if (pid) { | |
7443 | tp->key_mask[2] |= TCAM_V4KEY2_PROTO; | |
7444 | } | |
7445 | } | |
7446 | ||
7447 | static int niu_add_ethtool_tcam_entry(struct niu *np, | |
7448 | struct ethtool_rxnfc *nfc) | |
7449 | { | |
7450 | struct niu_parent *parent = np->parent; | |
7451 | struct niu_tcam_entry *tp; | |
7452 | struct ethtool_rx_flow_spec *fsp = &nfc->fs; | |
7453 | struct niu_rdc_tables *rdc_table = &parent->rdc_group_cfg[np->port]; | |
7454 | int l2_rdc_table = rdc_table->first_table_num; | |
7455 | u16 idx; | |
7456 | u64 class; | |
7457 | unsigned long flags; | |
7458 | int err, ret; | |
7459 | ||
7460 | ret = 0; | |
7461 | ||
7462 | idx = nfc->fs.location; | |
7463 | if (idx >= tcam_get_size(np)) | |
7464 | return -EINVAL; | |
7465 | ||
7466 | if (fsp->flow_type == IP_USER_FLOW) { | |
7467 | int i; | |
7468 | int add_usr_cls = 0; | |
7469 | int ipv6 = 0; | |
7470 | struct ethtool_usrip4_spec *uspec = &fsp->h_u.usr_ip4_spec; | |
7471 | struct ethtool_usrip4_spec *umask = &fsp->m_u.usr_ip4_spec; | |
7472 | ||
7473 | niu_lock_parent(np, flags); | |
7474 | ||
7475 | for (i = 0; i < NIU_L3_PROG_CLS; i++) { | |
7476 | if (parent->l3_cls[i]) { | |
7477 | if (uspec->proto == parent->l3_cls_pid[i]) { | |
7478 | class = parent->l3_cls[i]; | |
7479 | parent->l3_cls_refcnt[i]++; | |
7480 | add_usr_cls = 1; | |
7481 | break; | |
7482 | } | |
7483 | } else { | |
7484 | /* Program new user IP class */ | |
7485 | switch (i) { | |
7486 | case 0: | |
7487 | class = CLASS_CODE_USER_PROG1; | |
7488 | break; | |
7489 | case 1: | |
7490 | class = CLASS_CODE_USER_PROG2; | |
7491 | break; | |
7492 | case 2: | |
7493 | class = CLASS_CODE_USER_PROG3; | |
7494 | break; | |
7495 | case 3: | |
7496 | class = CLASS_CODE_USER_PROG4; | |
7497 | break; | |
7498 | default: | |
7499 | break; | |
7500 | } | |
7501 | if (uspec->ip_ver == ETH_RX_NFC_IP6) | |
7502 | ipv6 = 1; | |
7503 | ret = tcam_user_ip_class_set(np, class, ipv6, | |
7504 | uspec->proto, | |
7505 | uspec->tos, | |
7506 | umask->tos); | |
7507 | if (ret) | |
7508 | goto out; | |
7509 | ||
7510 | ret = tcam_user_ip_class_enable(np, class, 1); | |
7511 | if (ret) | |
7512 | goto out; | |
7513 | parent->l3_cls[i] = class; | |
7514 | parent->l3_cls_pid[i] = uspec->proto; | |
7515 | parent->l3_cls_refcnt[i]++; | |
7516 | add_usr_cls = 1; | |
7517 | break; | |
7518 | } | |
7519 | } | |
7520 | if (!add_usr_cls) { | |
f10a1f2e JP |
7521 | netdev_info(np->dev, "niu%d: %s(): Could not find/insert class for pid %d\n", |
7522 | parent->index, __func__, uspec->proto); | |
2d96cf8c SB |
7523 | ret = -EINVAL; |
7524 | goto out; | |
7525 | } | |
7526 | niu_unlock_parent(np, flags); | |
7527 | } else { | |
7528 | if (!niu_ethflow_to_class(fsp->flow_type, &class)) { | |
7529 | return -EINVAL; | |
7530 | } | |
7531 | } | |
7532 | ||
7533 | niu_lock_parent(np, flags); | |
7534 | ||
7535 | idx = tcam_get_index(np, idx); | |
7536 | tp = &parent->tcam[idx]; | |
7537 | ||
7538 | memset(tp, 0, sizeof(*tp)); | |
7539 | ||
7540 | /* fill in the tcam key and mask */ | |
7541 | switch (fsp->flow_type) { | |
7542 | case TCP_V4_FLOW: | |
7543 | case UDP_V4_FLOW: | |
7544 | case SCTP_V4_FLOW: | |
7545 | case AH_V4_FLOW: | |
7546 | case ESP_V4_FLOW: | |
7547 | niu_get_tcamkey_from_ip4fs(fsp, tp, l2_rdc_table, class); | |
7548 | break; | |
7549 | case TCP_V6_FLOW: | |
7550 | case UDP_V6_FLOW: | |
7551 | case SCTP_V6_FLOW: | |
7552 | case AH_V6_FLOW: | |
7553 | case ESP_V6_FLOW: | |
7554 | /* Not yet implemented */ | |
f10a1f2e JP |
7555 | netdev_info(np->dev, "niu%d: In %s(): flow %d for IPv6 not implemented\n", |
7556 | parent->index, __func__, fsp->flow_type); | |
2d96cf8c SB |
7557 | ret = -EINVAL; |
7558 | goto out; | |
7559 | case IP_USER_FLOW: | |
7560 | if (fsp->h_u.usr_ip4_spec.ip_ver == ETH_RX_NFC_IP4) { | |
7561 | niu_get_tcamkey_from_ip4fs(fsp, tp, l2_rdc_table, | |
7562 | class); | |
7563 | } else { | |
7564 | /* Not yet implemented */ | |
f10a1f2e JP |
7565 | netdev_info(np->dev, "niu%d: In %s(): usr flow for IPv6 not implemented\n", |
7566 | parent->index, __func__); | |
2d96cf8c SB |
7567 | ret = -EINVAL; |
7568 | goto out; | |
7569 | } | |
7570 | break; | |
7571 | default: | |
f10a1f2e JP |
7572 | netdev_info(np->dev, "niu%d: In %s(): Unknown flow type %d\n", |
7573 | parent->index, __func__, fsp->flow_type); | |
2d96cf8c SB |
7574 | ret = -EINVAL; |
7575 | goto out; | |
7576 | } | |
7577 | ||
7578 | /* fill in the assoc data */ | |
7579 | if (fsp->ring_cookie == RX_CLS_FLOW_DISC) { | |
7580 | tp->assoc_data = TCAM_ASSOCDATA_DISC; | |
7581 | } else { | |
7582 | if (fsp->ring_cookie >= np->num_rx_rings) { | |
f10a1f2e JP |
7583 | netdev_info(np->dev, "niu%d: In %s(): Invalid RX ring %lld\n", |
7584 | parent->index, __func__, | |
7585 | (long long)fsp->ring_cookie); | |
2d96cf8c SB |
7586 | ret = -EINVAL; |
7587 | goto out; | |
7588 | } | |
7589 | tp->assoc_data = (TCAM_ASSOCDATA_TRES_USE_OFFSET | | |
7590 | (fsp->ring_cookie << | |
7591 | TCAM_ASSOCDATA_OFFSET_SHIFT)); | |
7592 | } | |
7593 | ||
7594 | err = tcam_write(np, idx, tp->key, tp->key_mask); | |
7595 | if (err) { | |
7596 | ret = -EINVAL; | |
7597 | goto out; | |
7598 | } | |
7599 | err = tcam_assoc_write(np, idx, tp->assoc_data); | |
7600 | if (err) { | |
7601 | ret = -EINVAL; | |
7602 | goto out; | |
7603 | } | |
7604 | ||
7605 | /* validate the entry */ | |
7606 | tp->valid = 1; | |
7607 | np->clas.tcam_valid_entries++; | |
7608 | out: | |
7609 | niu_unlock_parent(np, flags); | |
7610 | ||
7611 | return ret; | |
7612 | } | |
7613 | ||
7614 | static int niu_del_ethtool_tcam_entry(struct niu *np, u32 loc) | |
7615 | { | |
7616 | struct niu_parent *parent = np->parent; | |
7617 | struct niu_tcam_entry *tp; | |
7618 | u16 idx; | |
7619 | unsigned long flags; | |
7620 | u64 class; | |
7621 | int ret = 0; | |
7622 | ||
7623 | if (loc >= tcam_get_size(np)) | |
7624 | return -EINVAL; | |
7625 | ||
7626 | niu_lock_parent(np, flags); | |
7627 | ||
7628 | idx = tcam_get_index(np, loc); | |
7629 | tp = &parent->tcam[idx]; | |
7630 | ||
7631 | /* if the entry is of a user defined class, then update*/ | |
7632 | class = (tp->key[0] & TCAM_V4KEY0_CLASS_CODE) >> | |
7633 | TCAM_V4KEY0_CLASS_CODE_SHIFT; | |
7634 | ||
7635 | if (class >= CLASS_CODE_USER_PROG1 && class <= CLASS_CODE_USER_PROG4) { | |
7636 | int i; | |
7637 | for (i = 0; i < NIU_L3_PROG_CLS; i++) { | |
7638 | if (parent->l3_cls[i] == class) { | |
7639 | parent->l3_cls_refcnt[i]--; | |
7640 | if (!parent->l3_cls_refcnt[i]) { | |
7641 | /* disable class */ | |
7642 | ret = tcam_user_ip_class_enable(np, | |
7643 | class, | |
7644 | 0); | |
7645 | if (ret) | |
7646 | goto out; | |
7647 | parent->l3_cls[i] = 0; | |
7648 | parent->l3_cls_pid[i] = 0; | |
7649 | } | |
7650 | break; | |
7651 | } | |
7652 | } | |
7653 | if (i == NIU_L3_PROG_CLS) { | |
f10a1f2e JP |
7654 | netdev_info(np->dev, "niu%d: In %s(): Usr class 0x%llx not found\n", |
7655 | parent->index, __func__, | |
7656 | (unsigned long long)class); | |
2d96cf8c SB |
7657 | ret = -EINVAL; |
7658 | goto out; | |
7659 | } | |
7660 | } | |
7661 | ||
7662 | ret = tcam_flush(np, idx); | |
7663 | if (ret) | |
7664 | goto out; | |
7665 | ||
7666 | /* invalidate the entry */ | |
7667 | tp->valid = 0; | |
7668 | np->clas.tcam_valid_entries--; | |
7669 | out: | |
7670 | niu_unlock_parent(np, flags); | |
7671 | ||
7672 | return ret; | |
7673 | } | |
7674 | ||
7675 | static int niu_set_nfc(struct net_device *dev, struct ethtool_rxnfc *cmd) | |
7676 | { | |
7677 | struct niu *np = netdev_priv(dev); | |
7678 | int ret = 0; | |
7679 | ||
7680 | switch (cmd->cmd) { | |
7681 | case ETHTOOL_SRXFH: | |
7682 | ret = niu_set_hash_opts(np, cmd); | |
7683 | break; | |
7684 | case ETHTOOL_SRXCLSRLINS: | |
7685 | ret = niu_add_ethtool_tcam_entry(np, cmd); | |
7686 | break; | |
7687 | case ETHTOOL_SRXCLSRLDEL: | |
7688 | ret = niu_del_ethtool_tcam_entry(np, cmd->fs.location); | |
7689 | break; | |
7690 | default: | |
7691 | ret = -EINVAL; | |
7692 | break; | |
7693 | } | |
7694 | ||
7695 | return ret; | |
7696 | } | |
7697 | ||
a3138df9 DM |
7698 | static const struct { |
7699 | const char string[ETH_GSTRING_LEN]; | |
7700 | } niu_xmac_stat_keys[] = { | |
7701 | { "tx_frames" }, | |
7702 | { "tx_bytes" }, | |
7703 | { "tx_fifo_errors" }, | |
7704 | { "tx_overflow_errors" }, | |
7705 | { "tx_max_pkt_size_errors" }, | |
7706 | { "tx_underflow_errors" }, | |
7707 | { "rx_local_faults" }, | |
7708 | { "rx_remote_faults" }, | |
7709 | { "rx_link_faults" }, | |
7710 | { "rx_align_errors" }, | |
7711 | { "rx_frags" }, | |
7712 | { "rx_mcasts" }, | |
7713 | { "rx_bcasts" }, | |
7714 | { "rx_hist_cnt1" }, | |
7715 | { "rx_hist_cnt2" }, | |
7716 | { "rx_hist_cnt3" }, | |
7717 | { "rx_hist_cnt4" }, | |
7718 | { "rx_hist_cnt5" }, | |
7719 | { "rx_hist_cnt6" }, | |
7720 | { "rx_hist_cnt7" }, | |
7721 | { "rx_octets" }, | |
7722 | { "rx_code_violations" }, | |
7723 | { "rx_len_errors" }, | |
7724 | { "rx_crc_errors" }, | |
7725 | { "rx_underflows" }, | |
7726 | { "rx_overflows" }, | |
7727 | { "pause_off_state" }, | |
7728 | { "pause_on_state" }, | |
7729 | { "pause_received" }, | |
7730 | }; | |
7731 | ||
7732 | #define NUM_XMAC_STAT_KEYS ARRAY_SIZE(niu_xmac_stat_keys) | |
7733 | ||
7734 | static const struct { | |
7735 | const char string[ETH_GSTRING_LEN]; | |
7736 | } niu_bmac_stat_keys[] = { | |
7737 | { "tx_underflow_errors" }, | |
7738 | { "tx_max_pkt_size_errors" }, | |
7739 | { "tx_bytes" }, | |
7740 | { "tx_frames" }, | |
7741 | { "rx_overflows" }, | |
7742 | { "rx_frames" }, | |
7743 | { "rx_align_errors" }, | |
7744 | { "rx_crc_errors" }, | |
7745 | { "rx_len_errors" }, | |
7746 | { "pause_off_state" }, | |
7747 | { "pause_on_state" }, | |
7748 | { "pause_received" }, | |
7749 | }; | |
7750 | ||
7751 | #define NUM_BMAC_STAT_KEYS ARRAY_SIZE(niu_bmac_stat_keys) | |
7752 | ||
7753 | static const struct { | |
7754 | const char string[ETH_GSTRING_LEN]; | |
7755 | } niu_rxchan_stat_keys[] = { | |
7756 | { "rx_channel" }, | |
7757 | { "rx_packets" }, | |
7758 | { "rx_bytes" }, | |
7759 | { "rx_dropped" }, | |
7760 | { "rx_errors" }, | |
7761 | }; | |
7762 | ||
7763 | #define NUM_RXCHAN_STAT_KEYS ARRAY_SIZE(niu_rxchan_stat_keys) | |
7764 | ||
7765 | static const struct { | |
7766 | const char string[ETH_GSTRING_LEN]; | |
7767 | } niu_txchan_stat_keys[] = { | |
7768 | { "tx_channel" }, | |
7769 | { "tx_packets" }, | |
7770 | { "tx_bytes" }, | |
7771 | { "tx_errors" }, | |
7772 | }; | |
7773 | ||
7774 | #define NUM_TXCHAN_STAT_KEYS ARRAY_SIZE(niu_txchan_stat_keys) | |
7775 | ||
7776 | static void niu_get_strings(struct net_device *dev, u32 stringset, u8 *data) | |
7777 | { | |
7778 | struct niu *np = netdev_priv(dev); | |
7779 | int i; | |
7780 | ||
7781 | if (stringset != ETH_SS_STATS) | |
7782 | return; | |
7783 | ||
7784 | if (np->flags & NIU_FLAGS_XMAC) { | |
7785 | memcpy(data, niu_xmac_stat_keys, | |
7786 | sizeof(niu_xmac_stat_keys)); | |
7787 | data += sizeof(niu_xmac_stat_keys); | |
7788 | } else { | |
7789 | memcpy(data, niu_bmac_stat_keys, | |
7790 | sizeof(niu_bmac_stat_keys)); | |
7791 | data += sizeof(niu_bmac_stat_keys); | |
7792 | } | |
7793 | for (i = 0; i < np->num_rx_rings; i++) { | |
7794 | memcpy(data, niu_rxchan_stat_keys, | |
7795 | sizeof(niu_rxchan_stat_keys)); | |
7796 | data += sizeof(niu_rxchan_stat_keys); | |
7797 | } | |
7798 | for (i = 0; i < np->num_tx_rings; i++) { | |
7799 | memcpy(data, niu_txchan_stat_keys, | |
7800 | sizeof(niu_txchan_stat_keys)); | |
7801 | data += sizeof(niu_txchan_stat_keys); | |
7802 | } | |
7803 | } | |
7804 | ||
15f0a394 | 7805 | static int niu_get_sset_count(struct net_device *dev, int stringset) |
a3138df9 DM |
7806 | { |
7807 | struct niu *np = netdev_priv(dev); | |
7808 | ||
15f0a394 BH |
7809 | if (stringset != ETH_SS_STATS) |
7810 | return -EINVAL; | |
7811 | ||
a3138df9 DM |
7812 | return ((np->flags & NIU_FLAGS_XMAC ? |
7813 | NUM_XMAC_STAT_KEYS : | |
7814 | NUM_BMAC_STAT_KEYS) + | |
7815 | (np->num_rx_rings * NUM_RXCHAN_STAT_KEYS) + | |
7816 | (np->num_tx_rings * NUM_TXCHAN_STAT_KEYS)); | |
7817 | } | |
7818 | ||
7819 | static void niu_get_ethtool_stats(struct net_device *dev, | |
7820 | struct ethtool_stats *stats, u64 *data) | |
7821 | { | |
7822 | struct niu *np = netdev_priv(dev); | |
7823 | int i; | |
7824 | ||
7825 | niu_sync_mac_stats(np); | |
7826 | if (np->flags & NIU_FLAGS_XMAC) { | |
7827 | memcpy(data, &np->mac_stats.xmac, | |
7828 | sizeof(struct niu_xmac_stats)); | |
7829 | data += (sizeof(struct niu_xmac_stats) / sizeof(u64)); | |
7830 | } else { | |
7831 | memcpy(data, &np->mac_stats.bmac, | |
7832 | sizeof(struct niu_bmac_stats)); | |
7833 | data += (sizeof(struct niu_bmac_stats) / sizeof(u64)); | |
7834 | } | |
7835 | for (i = 0; i < np->num_rx_rings; i++) { | |
7836 | struct rx_ring_info *rp = &np->rx_rings[i]; | |
7837 | ||
b8a606b8 JDB |
7838 | niu_sync_rx_discard_stats(np, rp, 0); |
7839 | ||
a3138df9 DM |
7840 | data[0] = rp->rx_channel; |
7841 | data[1] = rp->rx_packets; | |
7842 | data[2] = rp->rx_bytes; | |
7843 | data[3] = rp->rx_dropped; | |
7844 | data[4] = rp->rx_errors; | |
7845 | data += 5; | |
7846 | } | |
7847 | for (i = 0; i < np->num_tx_rings; i++) { | |
7848 | struct tx_ring_info *rp = &np->tx_rings[i]; | |
7849 | ||
7850 | data[0] = rp->tx_channel; | |
7851 | data[1] = rp->tx_packets; | |
7852 | data[2] = rp->tx_bytes; | |
7853 | data[3] = rp->tx_errors; | |
7854 | data += 4; | |
7855 | } | |
7856 | } | |
7857 | ||
7858 | static u64 niu_led_state_save(struct niu *np) | |
7859 | { | |
7860 | if (np->flags & NIU_FLAGS_XMAC) | |
7861 | return nr64_mac(XMAC_CONFIG); | |
7862 | else | |
7863 | return nr64_mac(BMAC_XIF_CONFIG); | |
7864 | } | |
7865 | ||
7866 | static void niu_led_state_restore(struct niu *np, u64 val) | |
7867 | { | |
7868 | if (np->flags & NIU_FLAGS_XMAC) | |
7869 | nw64_mac(XMAC_CONFIG, val); | |
7870 | else | |
7871 | nw64_mac(BMAC_XIF_CONFIG, val); | |
7872 | } | |
7873 | ||
7874 | static void niu_force_led(struct niu *np, int on) | |
7875 | { | |
7876 | u64 val, reg, bit; | |
7877 | ||
7878 | if (np->flags & NIU_FLAGS_XMAC) { | |
7879 | reg = XMAC_CONFIG; | |
7880 | bit = XMAC_CONFIG_FORCE_LED_ON; | |
7881 | } else { | |
7882 | reg = BMAC_XIF_CONFIG; | |
7883 | bit = BMAC_XIF_CONFIG_LINK_LED; | |
7884 | } | |
7885 | ||
7886 | val = nr64_mac(reg); | |
7887 | if (on) | |
7888 | val |= bit; | |
7889 | else | |
7890 | val &= ~bit; | |
7891 | nw64_mac(reg, val); | |
7892 | } | |
7893 | ||
7894 | static int niu_phys_id(struct net_device *dev, u32 data) | |
7895 | { | |
7896 | struct niu *np = netdev_priv(dev); | |
7897 | u64 orig_led_state; | |
7898 | int i; | |
7899 | ||
7900 | if (!netif_running(dev)) | |
7901 | return -EAGAIN; | |
7902 | ||
7903 | if (data == 0) | |
7904 | data = 2; | |
7905 | ||
7906 | orig_led_state = niu_led_state_save(np); | |
7907 | for (i = 0; i < (data * 2); i++) { | |
7908 | int on = ((i % 2) == 0); | |
7909 | ||
7910 | niu_force_led(np, on); | |
7911 | ||
7912 | if (msleep_interruptible(500)) | |
7913 | break; | |
7914 | } | |
7915 | niu_led_state_restore(np, orig_led_state); | |
7916 | ||
7917 | return 0; | |
7918 | } | |
7919 | ||
3cfa856d DM |
7920 | static int niu_set_flags(struct net_device *dev, u32 data) |
7921 | { | |
1437ce39 | 7922 | return ethtool_op_set_flags(dev, data, ETH_FLAG_RXHASH); |
3cfa856d DM |
7923 | } |
7924 | ||
a3138df9 DM |
7925 | static const struct ethtool_ops niu_ethtool_ops = { |
7926 | .get_drvinfo = niu_get_drvinfo, | |
7927 | .get_link = ethtool_op_get_link, | |
7928 | .get_msglevel = niu_get_msglevel, | |
7929 | .set_msglevel = niu_set_msglevel, | |
38bb045d | 7930 | .nway_reset = niu_nway_reset, |
a3138df9 DM |
7931 | .get_eeprom_len = niu_get_eeprom_len, |
7932 | .get_eeprom = niu_get_eeprom, | |
7933 | .get_settings = niu_get_settings, | |
7934 | .set_settings = niu_set_settings, | |
7935 | .get_strings = niu_get_strings, | |
15f0a394 | 7936 | .get_sset_count = niu_get_sset_count, |
a3138df9 DM |
7937 | .get_ethtool_stats = niu_get_ethtool_stats, |
7938 | .phys_id = niu_phys_id, | |
2d96cf8c SB |
7939 | .get_rxnfc = niu_get_nfc, |
7940 | .set_rxnfc = niu_set_nfc, | |
3cfa856d DM |
7941 | .set_flags = niu_set_flags, |
7942 | .get_flags = ethtool_op_get_flags, | |
a3138df9 DM |
7943 | }; |
7944 | ||
7945 | static int niu_ldg_assign_ldn(struct niu *np, struct niu_parent *parent, | |
7946 | int ldg, int ldn) | |
7947 | { | |
7948 | if (ldg < NIU_LDG_MIN || ldg > NIU_LDG_MAX) | |
7949 | return -EINVAL; | |
7950 | if (ldn < 0 || ldn > LDN_MAX) | |
7951 | return -EINVAL; | |
7952 | ||
7953 | parent->ldg_map[ldn] = ldg; | |
7954 | ||
7955 | if (np->parent->plat_type == PLAT_TYPE_NIU) { | |
7956 | /* On N2 NIU, the ldn-->ldg assignments are setup and fixed by | |
7957 | * the firmware, and we're not supposed to change them. | |
7958 | * Validate the mapping, because if it's wrong we probably | |
7959 | * won't get any interrupts and that's painful to debug. | |
7960 | */ | |
7961 | if (nr64(LDG_NUM(ldn)) != ldg) { | |
f10a1f2e | 7962 | dev_err(np->device, "Port %u, mis-matched LDG assignment for ldn %d, should be %d is %llu\n", |
a3138df9 DM |
7963 | np->port, ldn, ldg, |
7964 | (unsigned long long) nr64(LDG_NUM(ldn))); | |
7965 | return -EINVAL; | |
7966 | } | |
7967 | } else | |
7968 | nw64(LDG_NUM(ldn), ldg); | |
7969 | ||
7970 | return 0; | |
7971 | } | |
7972 | ||
7973 | static int niu_set_ldg_timer_res(struct niu *np, int res) | |
7974 | { | |
7975 | if (res < 0 || res > LDG_TIMER_RES_VAL) | |
7976 | return -EINVAL; | |
7977 | ||
7978 | ||
7979 | nw64(LDG_TIMER_RES, res); | |
7980 | ||
7981 | return 0; | |
7982 | } | |
7983 | ||
7984 | static int niu_set_ldg_sid(struct niu *np, int ldg, int func, int vector) | |
7985 | { | |
7986 | if ((ldg < NIU_LDG_MIN || ldg > NIU_LDG_MAX) || | |
7987 | (func < 0 || func > 3) || | |
7988 | (vector < 0 || vector > 0x1f)) | |
7989 | return -EINVAL; | |
7990 | ||
7991 | nw64(SID(ldg), (func << SID_FUNC_SHIFT) | vector); | |
7992 | ||
7993 | return 0; | |
7994 | } | |
7995 | ||
7996 | static int __devinit niu_pci_eeprom_read(struct niu *np, u32 addr) | |
7997 | { | |
7998 | u64 frame, frame_base = (ESPC_PIO_STAT_READ_START | | |
7999 | (addr << ESPC_PIO_STAT_ADDR_SHIFT)); | |
8000 | int limit; | |
8001 | ||
8002 | if (addr > (ESPC_PIO_STAT_ADDR >> ESPC_PIO_STAT_ADDR_SHIFT)) | |
8003 | return -EINVAL; | |
8004 | ||
8005 | frame = frame_base; | |
8006 | nw64(ESPC_PIO_STAT, frame); | |
8007 | limit = 64; | |
8008 | do { | |
8009 | udelay(5); | |
8010 | frame = nr64(ESPC_PIO_STAT); | |
8011 | if (frame & ESPC_PIO_STAT_READ_END) | |
8012 | break; | |
8013 | } while (limit--); | |
8014 | if (!(frame & ESPC_PIO_STAT_READ_END)) { | |
f10a1f2e | 8015 | dev_err(np->device, "EEPROM read timeout frame[%llx]\n", |
a3138df9 DM |
8016 | (unsigned long long) frame); |
8017 | return -ENODEV; | |
8018 | } | |
8019 | ||
8020 | frame = frame_base; | |
8021 | nw64(ESPC_PIO_STAT, frame); | |
8022 | limit = 64; | |
8023 | do { | |
8024 | udelay(5); | |
8025 | frame = nr64(ESPC_PIO_STAT); | |
8026 | if (frame & ESPC_PIO_STAT_READ_END) | |
8027 | break; | |
8028 | } while (limit--); | |
8029 | if (!(frame & ESPC_PIO_STAT_READ_END)) { | |
f10a1f2e | 8030 | dev_err(np->device, "EEPROM read timeout frame[%llx]\n", |
a3138df9 DM |
8031 | (unsigned long long) frame); |
8032 | return -ENODEV; | |
8033 | } | |
8034 | ||
8035 | frame = nr64(ESPC_PIO_STAT); | |
8036 | return (frame & ESPC_PIO_STAT_DATA) >> ESPC_PIO_STAT_DATA_SHIFT; | |
8037 | } | |
8038 | ||
8039 | static int __devinit niu_pci_eeprom_read16(struct niu *np, u32 off) | |
8040 | { | |
8041 | int err = niu_pci_eeprom_read(np, off); | |
8042 | u16 val; | |
8043 | ||
8044 | if (err < 0) | |
8045 | return err; | |
8046 | val = (err << 8); | |
8047 | err = niu_pci_eeprom_read(np, off + 1); | |
8048 | if (err < 0) | |
8049 | return err; | |
8050 | val |= (err & 0xff); | |
8051 | ||
8052 | return val; | |
8053 | } | |
8054 | ||
8055 | static int __devinit niu_pci_eeprom_read16_swp(struct niu *np, u32 off) | |
8056 | { | |
8057 | int err = niu_pci_eeprom_read(np, off); | |
8058 | u16 val; | |
8059 | ||
8060 | if (err < 0) | |
8061 | return err; | |
8062 | ||
8063 | val = (err & 0xff); | |
8064 | err = niu_pci_eeprom_read(np, off + 1); | |
8065 | if (err < 0) | |
8066 | return err; | |
8067 | ||
8068 | val |= (err & 0xff) << 8; | |
8069 | ||
8070 | return val; | |
8071 | } | |
8072 | ||
8073 | static int __devinit niu_pci_vpd_get_propname(struct niu *np, | |
8074 | u32 off, | |
8075 | char *namebuf, | |
8076 | int namebuf_len) | |
8077 | { | |
8078 | int i; | |
8079 | ||
8080 | for (i = 0; i < namebuf_len; i++) { | |
8081 | int err = niu_pci_eeprom_read(np, off + i); | |
8082 | if (err < 0) | |
8083 | return err; | |
8084 | *namebuf++ = err; | |
8085 | if (!err) | |
8086 | break; | |
8087 | } | |
8088 | if (i >= namebuf_len) | |
8089 | return -EINVAL; | |
8090 | ||
8091 | return i + 1; | |
8092 | } | |
8093 | ||
8094 | static void __devinit niu_vpd_parse_version(struct niu *np) | |
8095 | { | |
8096 | struct niu_vpd *vpd = &np->vpd; | |
8097 | int len = strlen(vpd->version) + 1; | |
8098 | const char *s = vpd->version; | |
8099 | int i; | |
8100 | ||
8101 | for (i = 0; i < len - 5; i++) { | |
9ea2bdab | 8102 | if (!strncmp(s + i, "FCode ", 6)) |
a3138df9 DM |
8103 | break; |
8104 | } | |
8105 | if (i >= len - 5) | |
8106 | return; | |
8107 | ||
8108 | s += i + 5; | |
8109 | sscanf(s, "%d.%d", &vpd->fcode_major, &vpd->fcode_minor); | |
8110 | ||
f10a1f2e JP |
8111 | netif_printk(np, probe, KERN_DEBUG, np->dev, |
8112 | "VPD_SCAN: FCODE major(%d) minor(%d)\n", | |
8113 | vpd->fcode_major, vpd->fcode_minor); | |
a3138df9 DM |
8114 | if (vpd->fcode_major > NIU_VPD_MIN_MAJOR || |
8115 | (vpd->fcode_major == NIU_VPD_MIN_MAJOR && | |
8116 | vpd->fcode_minor >= NIU_VPD_MIN_MINOR)) | |
8117 | np->flags |= NIU_FLAGS_VPD_VALID; | |
8118 | } | |
8119 | ||
8120 | /* ESPC_PIO_EN_ENABLE must be set */ | |
8121 | static int __devinit niu_pci_vpd_scan_props(struct niu *np, | |
8122 | u32 start, u32 end) | |
8123 | { | |
8124 | unsigned int found_mask = 0; | |
8125 | #define FOUND_MASK_MODEL 0x00000001 | |
8126 | #define FOUND_MASK_BMODEL 0x00000002 | |
8127 | #define FOUND_MASK_VERS 0x00000004 | |
8128 | #define FOUND_MASK_MAC 0x00000008 | |
8129 | #define FOUND_MASK_NMAC 0x00000010 | |
8130 | #define FOUND_MASK_PHY 0x00000020 | |
8131 | #define FOUND_MASK_ALL 0x0000003f | |
8132 | ||
f10a1f2e JP |
8133 | netif_printk(np, probe, KERN_DEBUG, np->dev, |
8134 | "VPD_SCAN: start[%x] end[%x]\n", start, end); | |
a3138df9 DM |
8135 | while (start < end) { |
8136 | int len, err, instance, type, prop_len; | |
8137 | char namebuf[64]; | |
8138 | u8 *prop_buf; | |
8139 | int max_len; | |
8140 | ||
8141 | if (found_mask == FOUND_MASK_ALL) { | |
8142 | niu_vpd_parse_version(np); | |
8143 | return 1; | |
8144 | } | |
8145 | ||
8146 | err = niu_pci_eeprom_read(np, start + 2); | |
8147 | if (err < 0) | |
8148 | return err; | |
8149 | len = err; | |
8150 | start += 3; | |
8151 | ||
8152 | instance = niu_pci_eeprom_read(np, start); | |
8153 | type = niu_pci_eeprom_read(np, start + 3); | |
8154 | prop_len = niu_pci_eeprom_read(np, start + 4); | |
8155 | err = niu_pci_vpd_get_propname(np, start + 5, namebuf, 64); | |
8156 | if (err < 0) | |
8157 | return err; | |
8158 | ||
8159 | prop_buf = NULL; | |
8160 | max_len = 0; | |
8161 | if (!strcmp(namebuf, "model")) { | |
8162 | prop_buf = np->vpd.model; | |
8163 | max_len = NIU_VPD_MODEL_MAX; | |
8164 | found_mask |= FOUND_MASK_MODEL; | |
8165 | } else if (!strcmp(namebuf, "board-model")) { | |
8166 | prop_buf = np->vpd.board_model; | |
8167 | max_len = NIU_VPD_BD_MODEL_MAX; | |
8168 | found_mask |= FOUND_MASK_BMODEL; | |
8169 | } else if (!strcmp(namebuf, "version")) { | |
8170 | prop_buf = np->vpd.version; | |
8171 | max_len = NIU_VPD_VERSION_MAX; | |
8172 | found_mask |= FOUND_MASK_VERS; | |
8173 | } else if (!strcmp(namebuf, "local-mac-address")) { | |
8174 | prop_buf = np->vpd.local_mac; | |
8175 | max_len = ETH_ALEN; | |
8176 | found_mask |= FOUND_MASK_MAC; | |
8177 | } else if (!strcmp(namebuf, "num-mac-addresses")) { | |
8178 | prop_buf = &np->vpd.mac_num; | |
8179 | max_len = 1; | |
8180 | found_mask |= FOUND_MASK_NMAC; | |
8181 | } else if (!strcmp(namebuf, "phy-type")) { | |
8182 | prop_buf = np->vpd.phy_type; | |
8183 | max_len = NIU_VPD_PHY_TYPE_MAX; | |
8184 | found_mask |= FOUND_MASK_PHY; | |
8185 | } | |
8186 | ||
8187 | if (max_len && prop_len > max_len) { | |
f10a1f2e | 8188 | dev_err(np->device, "Property '%s' length (%d) is too long\n", namebuf, prop_len); |
a3138df9 DM |
8189 | return -EINVAL; |
8190 | } | |
8191 | ||
8192 | if (prop_buf) { | |
8193 | u32 off = start + 5 + err; | |
8194 | int i; | |
8195 | ||
f10a1f2e JP |
8196 | netif_printk(np, probe, KERN_DEBUG, np->dev, |
8197 | "VPD_SCAN: Reading in property [%s] len[%d]\n", | |
8198 | namebuf, prop_len); | |
a3138df9 DM |
8199 | for (i = 0; i < prop_len; i++) |
8200 | *prop_buf++ = niu_pci_eeprom_read(np, off + i); | |
8201 | } | |
8202 | ||
8203 | start += len; | |
8204 | } | |
8205 | ||
8206 | return 0; | |
8207 | } | |
8208 | ||
8209 | /* ESPC_PIO_EN_ENABLE must be set */ | |
8210 | static void __devinit niu_pci_vpd_fetch(struct niu *np, u32 start) | |
8211 | { | |
8212 | u32 offset; | |
8213 | int err; | |
8214 | ||
8215 | err = niu_pci_eeprom_read16_swp(np, start + 1); | |
8216 | if (err < 0) | |
8217 | return; | |
8218 | ||
8219 | offset = err + 3; | |
8220 | ||
8221 | while (start + offset < ESPC_EEPROM_SIZE) { | |
8222 | u32 here = start + offset; | |
8223 | u32 end; | |
8224 | ||
8225 | err = niu_pci_eeprom_read(np, here); | |
8226 | if (err != 0x90) | |
8227 | return; | |
8228 | ||
8229 | err = niu_pci_eeprom_read16_swp(np, here + 1); | |
8230 | if (err < 0) | |
8231 | return; | |
8232 | ||
8233 | here = start + offset + 3; | |
8234 | end = start + offset + err; | |
8235 | ||
8236 | offset += err; | |
8237 | ||
8238 | err = niu_pci_vpd_scan_props(np, here, end); | |
8239 | if (err < 0 || err == 1) | |
8240 | return; | |
8241 | } | |
8242 | } | |
8243 | ||
8244 | /* ESPC_PIO_EN_ENABLE must be set */ | |
8245 | static u32 __devinit niu_pci_vpd_offset(struct niu *np) | |
8246 | { | |
8247 | u32 start = 0, end = ESPC_EEPROM_SIZE, ret; | |
8248 | int err; | |
8249 | ||
8250 | while (start < end) { | |
8251 | ret = start; | |
8252 | ||
8253 | /* ROM header signature? */ | |
8254 | err = niu_pci_eeprom_read16(np, start + 0); | |
8255 | if (err != 0x55aa) | |
8256 | return 0; | |
8257 | ||
8258 | /* Apply offset to PCI data structure. */ | |
8259 | err = niu_pci_eeprom_read16(np, start + 23); | |
8260 | if (err < 0) | |
8261 | return 0; | |
8262 | start += err; | |
8263 | ||
8264 | /* Check for "PCIR" signature. */ | |
8265 | err = niu_pci_eeprom_read16(np, start + 0); | |
8266 | if (err != 0x5043) | |
8267 | return 0; | |
8268 | err = niu_pci_eeprom_read16(np, start + 2); | |
8269 | if (err != 0x4952) | |
8270 | return 0; | |
8271 | ||
8272 | /* Check for OBP image type. */ | |
8273 | err = niu_pci_eeprom_read(np, start + 20); | |
8274 | if (err < 0) | |
8275 | return 0; | |
8276 | if (err != 0x01) { | |
8277 | err = niu_pci_eeprom_read(np, ret + 2); | |
8278 | if (err < 0) | |
8279 | return 0; | |
8280 | ||
8281 | start = ret + (err * 512); | |
8282 | continue; | |
8283 | } | |
8284 | ||
8285 | err = niu_pci_eeprom_read16_swp(np, start + 8); | |
8286 | if (err < 0) | |
8287 | return err; | |
8288 | ret += err; | |
8289 | ||
8290 | err = niu_pci_eeprom_read(np, ret + 0); | |
8291 | if (err != 0x82) | |
8292 | return 0; | |
8293 | ||
8294 | return ret; | |
8295 | } | |
8296 | ||
8297 | return 0; | |
8298 | } | |
8299 | ||
8300 | static int __devinit niu_phy_type_prop_decode(struct niu *np, | |
8301 | const char *phy_prop) | |
8302 | { | |
8303 | if (!strcmp(phy_prop, "mif")) { | |
8304 | /* 1G copper, MII */ | |
8305 | np->flags &= ~(NIU_FLAGS_FIBER | | |
8306 | NIU_FLAGS_10G); | |
8307 | np->mac_xcvr = MAC_XCVR_MII; | |
8308 | } else if (!strcmp(phy_prop, "xgf")) { | |
8309 | /* 10G fiber, XPCS */ | |
8310 | np->flags |= (NIU_FLAGS_10G | | |
8311 | NIU_FLAGS_FIBER); | |
8312 | np->mac_xcvr = MAC_XCVR_XPCS; | |
8313 | } else if (!strcmp(phy_prop, "pcs")) { | |
8314 | /* 1G fiber, PCS */ | |
8315 | np->flags &= ~NIU_FLAGS_10G; | |
8316 | np->flags |= NIU_FLAGS_FIBER; | |
8317 | np->mac_xcvr = MAC_XCVR_PCS; | |
8318 | } else if (!strcmp(phy_prop, "xgc")) { | |
8319 | /* 10G copper, XPCS */ | |
8320 | np->flags |= NIU_FLAGS_10G; | |
8321 | np->flags &= ~NIU_FLAGS_FIBER; | |
8322 | np->mac_xcvr = MAC_XCVR_XPCS; | |
e3e081e1 SB |
8323 | } else if (!strcmp(phy_prop, "xgsd") || !strcmp(phy_prop, "gsd")) { |
8324 | /* 10G Serdes or 1G Serdes, default to 10G */ | |
8325 | np->flags |= NIU_FLAGS_10G; | |
8326 | np->flags &= ~NIU_FLAGS_FIBER; | |
8327 | np->flags |= NIU_FLAGS_XCVR_SERDES; | |
8328 | np->mac_xcvr = MAC_XCVR_XPCS; | |
a3138df9 DM |
8329 | } else { |
8330 | return -EINVAL; | |
8331 | } | |
8332 | return 0; | |
8333 | } | |
8334 | ||
7f7c4072 MW |
8335 | static int niu_pci_vpd_get_nports(struct niu *np) |
8336 | { | |
8337 | int ports = 0; | |
8338 | ||
f9af8574 MW |
8339 | if ((!strcmp(np->vpd.model, NIU_QGC_LP_MDL_STR)) || |
8340 | (!strcmp(np->vpd.model, NIU_QGC_PEM_MDL_STR)) || | |
8341 | (!strcmp(np->vpd.model, NIU_MARAMBA_MDL_STR)) || | |
8342 | (!strcmp(np->vpd.model, NIU_KIMI_MDL_STR)) || | |
8343 | (!strcmp(np->vpd.model, NIU_ALONSO_MDL_STR))) { | |
7f7c4072 | 8344 | ports = 4; |
f9af8574 MW |
8345 | } else if ((!strcmp(np->vpd.model, NIU_2XGF_LP_MDL_STR)) || |
8346 | (!strcmp(np->vpd.model, NIU_2XGF_PEM_MDL_STR)) || | |
8347 | (!strcmp(np->vpd.model, NIU_FOXXY_MDL_STR)) || | |
8348 | (!strcmp(np->vpd.model, NIU_2XGF_MRVL_MDL_STR))) { | |
7f7c4072 MW |
8349 | ports = 2; |
8350 | } | |
8351 | ||
8352 | return ports; | |
8353 | } | |
8354 | ||
a3138df9 DM |
8355 | static void __devinit niu_pci_vpd_validate(struct niu *np) |
8356 | { | |
8357 | struct net_device *dev = np->dev; | |
8358 | struct niu_vpd *vpd = &np->vpd; | |
8359 | u8 val8; | |
8360 | ||
8361 | if (!is_valid_ether_addr(&vpd->local_mac[0])) { | |
f10a1f2e | 8362 | dev_err(np->device, "VPD MAC invalid, falling back to SPROM\n"); |
a3138df9 DM |
8363 | |
8364 | np->flags &= ~NIU_FLAGS_VPD_VALID; | |
8365 | return; | |
8366 | } | |
8367 | ||
f9af8574 MW |
8368 | if (!strcmp(np->vpd.model, NIU_ALONSO_MDL_STR) || |
8369 | !strcmp(np->vpd.model, NIU_KIMI_MDL_STR)) { | |
5fbd7e24 MW |
8370 | np->flags |= NIU_FLAGS_10G; |
8371 | np->flags &= ~NIU_FLAGS_FIBER; | |
8372 | np->flags |= NIU_FLAGS_XCVR_SERDES; | |
8373 | np->mac_xcvr = MAC_XCVR_PCS; | |
8374 | if (np->port > 1) { | |
8375 | np->flags |= NIU_FLAGS_FIBER; | |
8376 | np->flags &= ~NIU_FLAGS_10G; | |
8377 | } | |
8378 | if (np->flags & NIU_FLAGS_10G) | |
f10a1f2e | 8379 | np->mac_xcvr = MAC_XCVR_XPCS; |
f9af8574 | 8380 | } else if (!strcmp(np->vpd.model, NIU_FOXXY_MDL_STR)) { |
a5d6ab56 MW |
8381 | np->flags |= (NIU_FLAGS_10G | NIU_FLAGS_FIBER | |
8382 | NIU_FLAGS_HOTPLUG_PHY); | |
5fbd7e24 | 8383 | } else if (niu_phy_type_prop_decode(np, np->vpd.phy_type)) { |
f10a1f2e | 8384 | dev_err(np->device, "Illegal phy string [%s]\n", |
a3138df9 | 8385 | np->vpd.phy_type); |
f10a1f2e | 8386 | dev_err(np->device, "Falling back to SPROM\n"); |
a3138df9 DM |
8387 | np->flags &= ~NIU_FLAGS_VPD_VALID; |
8388 | return; | |
8389 | } | |
8390 | ||
8391 | memcpy(dev->perm_addr, vpd->local_mac, ETH_ALEN); | |
8392 | ||
8393 | val8 = dev->perm_addr[5]; | |
8394 | dev->perm_addr[5] += np->port; | |
8395 | if (dev->perm_addr[5] < val8) | |
8396 | dev->perm_addr[4]++; | |
8397 | ||
8398 | memcpy(dev->dev_addr, dev->perm_addr, dev->addr_len); | |
8399 | } | |
8400 | ||
8401 | static int __devinit niu_pci_probe_sprom(struct niu *np) | |
8402 | { | |
8403 | struct net_device *dev = np->dev; | |
8404 | int len, i; | |
8405 | u64 val, sum; | |
8406 | u8 val8; | |
8407 | ||
8408 | val = (nr64(ESPC_VER_IMGSZ) & ESPC_VER_IMGSZ_IMGSZ); | |
8409 | val >>= ESPC_VER_IMGSZ_IMGSZ_SHIFT; | |
8410 | len = val / 4; | |
8411 | ||
8412 | np->eeprom_len = len; | |
8413 | ||
f10a1f2e JP |
8414 | netif_printk(np, probe, KERN_DEBUG, np->dev, |
8415 | "SPROM: Image size %llu\n", (unsigned long long)val); | |
a3138df9 DM |
8416 | |
8417 | sum = 0; | |
8418 | for (i = 0; i < len; i++) { | |
8419 | val = nr64(ESPC_NCR(i)); | |
8420 | sum += (val >> 0) & 0xff; | |
8421 | sum += (val >> 8) & 0xff; | |
8422 | sum += (val >> 16) & 0xff; | |
8423 | sum += (val >> 24) & 0xff; | |
8424 | } | |
f10a1f2e JP |
8425 | netif_printk(np, probe, KERN_DEBUG, np->dev, |
8426 | "SPROM: Checksum %x\n", (int)(sum & 0xff)); | |
a3138df9 | 8427 | if ((sum & 0xff) != 0xab) { |
f10a1f2e | 8428 | dev_err(np->device, "Bad SPROM checksum (%x, should be 0xab)\n", (int)(sum & 0xff)); |
a3138df9 DM |
8429 | return -EINVAL; |
8430 | } | |
8431 | ||
8432 | val = nr64(ESPC_PHY_TYPE); | |
8433 | switch (np->port) { | |
8434 | case 0: | |
a9d41192 | 8435 | val8 = (val & ESPC_PHY_TYPE_PORT0) >> |
a3138df9 DM |
8436 | ESPC_PHY_TYPE_PORT0_SHIFT; |
8437 | break; | |
8438 | case 1: | |
a9d41192 | 8439 | val8 = (val & ESPC_PHY_TYPE_PORT1) >> |
a3138df9 DM |
8440 | ESPC_PHY_TYPE_PORT1_SHIFT; |
8441 | break; | |
8442 | case 2: | |
a9d41192 | 8443 | val8 = (val & ESPC_PHY_TYPE_PORT2) >> |
a3138df9 DM |
8444 | ESPC_PHY_TYPE_PORT2_SHIFT; |
8445 | break; | |
8446 | case 3: | |
a9d41192 | 8447 | val8 = (val & ESPC_PHY_TYPE_PORT3) >> |
a3138df9 DM |
8448 | ESPC_PHY_TYPE_PORT3_SHIFT; |
8449 | break; | |
8450 | default: | |
f10a1f2e | 8451 | dev_err(np->device, "Bogus port number %u\n", |
a3138df9 DM |
8452 | np->port); |
8453 | return -EINVAL; | |
8454 | } | |
f10a1f2e JP |
8455 | netif_printk(np, probe, KERN_DEBUG, np->dev, |
8456 | "SPROM: PHY type %x\n", val8); | |
a3138df9 | 8457 | |
a9d41192 | 8458 | switch (val8) { |
a3138df9 DM |
8459 | case ESPC_PHY_TYPE_1G_COPPER: |
8460 | /* 1G copper, MII */ | |
8461 | np->flags &= ~(NIU_FLAGS_FIBER | | |
8462 | NIU_FLAGS_10G); | |
8463 | np->mac_xcvr = MAC_XCVR_MII; | |
8464 | break; | |
8465 | ||
8466 | case ESPC_PHY_TYPE_1G_FIBER: | |
8467 | /* 1G fiber, PCS */ | |
8468 | np->flags &= ~NIU_FLAGS_10G; | |
8469 | np->flags |= NIU_FLAGS_FIBER; | |
8470 | np->mac_xcvr = MAC_XCVR_PCS; | |
8471 | break; | |
8472 | ||
8473 | case ESPC_PHY_TYPE_10G_COPPER: | |
8474 | /* 10G copper, XPCS */ | |
8475 | np->flags |= NIU_FLAGS_10G; | |
8476 | np->flags &= ~NIU_FLAGS_FIBER; | |
8477 | np->mac_xcvr = MAC_XCVR_XPCS; | |
8478 | break; | |
8479 | ||
8480 | case ESPC_PHY_TYPE_10G_FIBER: | |
8481 | /* 10G fiber, XPCS */ | |
8482 | np->flags |= (NIU_FLAGS_10G | | |
8483 | NIU_FLAGS_FIBER); | |
8484 | np->mac_xcvr = MAC_XCVR_XPCS; | |
8485 | break; | |
8486 | ||
8487 | default: | |
f10a1f2e | 8488 | dev_err(np->device, "Bogus SPROM phy type %u\n", val8); |
a3138df9 DM |
8489 | return -EINVAL; |
8490 | } | |
8491 | ||
8492 | val = nr64(ESPC_MAC_ADDR0); | |
f10a1f2e JP |
8493 | netif_printk(np, probe, KERN_DEBUG, np->dev, |
8494 | "SPROM: MAC_ADDR0[%08llx]\n", (unsigned long long)val); | |
a3138df9 DM |
8495 | dev->perm_addr[0] = (val >> 0) & 0xff; |
8496 | dev->perm_addr[1] = (val >> 8) & 0xff; | |
8497 | dev->perm_addr[2] = (val >> 16) & 0xff; | |
8498 | dev->perm_addr[3] = (val >> 24) & 0xff; | |
8499 | ||
8500 | val = nr64(ESPC_MAC_ADDR1); | |
f10a1f2e JP |
8501 | netif_printk(np, probe, KERN_DEBUG, np->dev, |
8502 | "SPROM: MAC_ADDR1[%08llx]\n", (unsigned long long)val); | |
a3138df9 DM |
8503 | dev->perm_addr[4] = (val >> 0) & 0xff; |
8504 | dev->perm_addr[5] = (val >> 8) & 0xff; | |
8505 | ||
8506 | if (!is_valid_ether_addr(&dev->perm_addr[0])) { | |
f10a1f2e JP |
8507 | dev_err(np->device, "SPROM MAC address invalid [ %pM ]\n", |
8508 | dev->perm_addr); | |
a3138df9 DM |
8509 | return -EINVAL; |
8510 | } | |
8511 | ||
8512 | val8 = dev->perm_addr[5]; | |
8513 | dev->perm_addr[5] += np->port; | |
8514 | if (dev->perm_addr[5] < val8) | |
8515 | dev->perm_addr[4]++; | |
8516 | ||
8517 | memcpy(dev->dev_addr, dev->perm_addr, dev->addr_len); | |
8518 | ||
8519 | val = nr64(ESPC_MOD_STR_LEN); | |
f10a1f2e JP |
8520 | netif_printk(np, probe, KERN_DEBUG, np->dev, |
8521 | "SPROM: MOD_STR_LEN[%llu]\n", (unsigned long long)val); | |
e6a5fdf5 | 8522 | if (val >= 8 * 4) |
a3138df9 DM |
8523 | return -EINVAL; |
8524 | ||
8525 | for (i = 0; i < val; i += 4) { | |
8526 | u64 tmp = nr64(ESPC_NCR(5 + (i / 4))); | |
8527 | ||
8528 | np->vpd.model[i + 3] = (tmp >> 0) & 0xff; | |
8529 | np->vpd.model[i + 2] = (tmp >> 8) & 0xff; | |
8530 | np->vpd.model[i + 1] = (tmp >> 16) & 0xff; | |
8531 | np->vpd.model[i + 0] = (tmp >> 24) & 0xff; | |
8532 | } | |
8533 | np->vpd.model[val] = '\0'; | |
8534 | ||
8535 | val = nr64(ESPC_BD_MOD_STR_LEN); | |
f10a1f2e JP |
8536 | netif_printk(np, probe, KERN_DEBUG, np->dev, |
8537 | "SPROM: BD_MOD_STR_LEN[%llu]\n", (unsigned long long)val); | |
e6a5fdf5 | 8538 | if (val >= 4 * 4) |
a3138df9 DM |
8539 | return -EINVAL; |
8540 | ||
8541 | for (i = 0; i < val; i += 4) { | |
8542 | u64 tmp = nr64(ESPC_NCR(14 + (i / 4))); | |
8543 | ||
8544 | np->vpd.board_model[i + 3] = (tmp >> 0) & 0xff; | |
8545 | np->vpd.board_model[i + 2] = (tmp >> 8) & 0xff; | |
8546 | np->vpd.board_model[i + 1] = (tmp >> 16) & 0xff; | |
8547 | np->vpd.board_model[i + 0] = (tmp >> 24) & 0xff; | |
8548 | } | |
8549 | np->vpd.board_model[val] = '\0'; | |
8550 | ||
8551 | np->vpd.mac_num = | |
8552 | nr64(ESPC_NUM_PORTS_MACS) & ESPC_NUM_PORTS_MACS_VAL; | |
f10a1f2e JP |
8553 | netif_printk(np, probe, KERN_DEBUG, np->dev, |
8554 | "SPROM: NUM_PORTS_MACS[%d]\n", np->vpd.mac_num); | |
a3138df9 DM |
8555 | |
8556 | return 0; | |
8557 | } | |
8558 | ||
8559 | static int __devinit niu_get_and_validate_port(struct niu *np) | |
8560 | { | |
8561 | struct niu_parent *parent = np->parent; | |
8562 | ||
8563 | if (np->port <= 1) | |
8564 | np->flags |= NIU_FLAGS_XMAC; | |
8565 | ||
8566 | if (!parent->num_ports) { | |
8567 | if (parent->plat_type == PLAT_TYPE_NIU) { | |
8568 | parent->num_ports = 2; | |
8569 | } else { | |
7f7c4072 MW |
8570 | parent->num_ports = niu_pci_vpd_get_nports(np); |
8571 | if (!parent->num_ports) { | |
8572 | /* Fall back to SPROM as last resort. | |
8573 | * This will fail on most cards. | |
8574 | */ | |
8575 | parent->num_ports = nr64(ESPC_NUM_PORTS_MACS) & | |
8576 | ESPC_NUM_PORTS_MACS_VAL; | |
8577 | ||
be0c007a DM |
8578 | /* All of the current probing methods fail on |
8579 | * Maramba on-board parts. | |
8580 | */ | |
7f7c4072 | 8581 | if (!parent->num_ports) |
be0c007a | 8582 | parent->num_ports = 4; |
7f7c4072 | 8583 | } |
a3138df9 DM |
8584 | } |
8585 | } | |
8586 | ||
a3138df9 DM |
8587 | if (np->port >= parent->num_ports) |
8588 | return -ENODEV; | |
8589 | ||
8590 | return 0; | |
8591 | } | |
8592 | ||
8593 | static int __devinit phy_record(struct niu_parent *parent, | |
8594 | struct phy_probe_info *p, | |
8595 | int dev_id_1, int dev_id_2, u8 phy_port, | |
8596 | int type) | |
8597 | { | |
8598 | u32 id = (dev_id_1 << 16) | dev_id_2; | |
8599 | u8 idx; | |
8600 | ||
8601 | if (dev_id_1 < 0 || dev_id_2 < 0) | |
8602 | return 0; | |
8603 | if (type == PHY_TYPE_PMA_PMD || type == PHY_TYPE_PCS) { | |
b0de8e40 | 8604 | if (((id & NIU_PHY_ID_MASK) != NIU_PHY_ID_BCM8704) && |
a5d6ab56 MW |
8605 | ((id & NIU_PHY_ID_MASK) != NIU_PHY_ID_MRVL88X2011) && |
8606 | ((id & NIU_PHY_ID_MASK) != NIU_PHY_ID_BCM8706)) | |
a3138df9 DM |
8607 | return 0; |
8608 | } else { | |
8609 | if ((id & NIU_PHY_ID_MASK) != NIU_PHY_ID_BCM5464R) | |
8610 | return 0; | |
8611 | } | |
8612 | ||
8613 | pr_info("niu%d: Found PHY %08x type %s at phy_port %u\n", | |
8614 | parent->index, id, | |
f10a1f2e JP |
8615 | type == PHY_TYPE_PMA_PMD ? "PMA/PMD" : |
8616 | type == PHY_TYPE_PCS ? "PCS" : "MII", | |
a3138df9 DM |
8617 | phy_port); |
8618 | ||
8619 | if (p->cur[type] >= NIU_MAX_PORTS) { | |
f10a1f2e | 8620 | pr_err("Too many PHY ports\n"); |
a3138df9 DM |
8621 | return -EINVAL; |
8622 | } | |
8623 | idx = p->cur[type]; | |
8624 | p->phy_id[type][idx] = id; | |
8625 | p->phy_port[type][idx] = phy_port; | |
8626 | p->cur[type] = idx + 1; | |
8627 | return 0; | |
8628 | } | |
8629 | ||
8630 | static int __devinit port_has_10g(struct phy_probe_info *p, int port) | |
8631 | { | |
8632 | int i; | |
8633 | ||
8634 | for (i = 0; i < p->cur[PHY_TYPE_PMA_PMD]; i++) { | |
8635 | if (p->phy_port[PHY_TYPE_PMA_PMD][i] == port) | |
8636 | return 1; | |
8637 | } | |
8638 | for (i = 0; i < p->cur[PHY_TYPE_PCS]; i++) { | |
8639 | if (p->phy_port[PHY_TYPE_PCS][i] == port) | |
8640 | return 1; | |
8641 | } | |
8642 | ||
8643 | return 0; | |
8644 | } | |
8645 | ||
8646 | static int __devinit count_10g_ports(struct phy_probe_info *p, int *lowest) | |
8647 | { | |
8648 | int port, cnt; | |
8649 | ||
8650 | cnt = 0; | |
8651 | *lowest = 32; | |
8652 | for (port = 8; port < 32; port++) { | |
8653 | if (port_has_10g(p, port)) { | |
8654 | if (!cnt) | |
8655 | *lowest = port; | |
8656 | cnt++; | |
8657 | } | |
8658 | } | |
8659 | ||
8660 | return cnt; | |
8661 | } | |
8662 | ||
8663 | static int __devinit count_1g_ports(struct phy_probe_info *p, int *lowest) | |
8664 | { | |
8665 | *lowest = 32; | |
8666 | if (p->cur[PHY_TYPE_MII]) | |
8667 | *lowest = p->phy_port[PHY_TYPE_MII][0]; | |
8668 | ||
8669 | return p->cur[PHY_TYPE_MII]; | |
8670 | } | |
8671 | ||
8672 | static void __devinit niu_n2_divide_channels(struct niu_parent *parent) | |
8673 | { | |
8674 | int num_ports = parent->num_ports; | |
8675 | int i; | |
8676 | ||
8677 | for (i = 0; i < num_ports; i++) { | |
8678 | parent->rxchan_per_port[i] = (16 / num_ports); | |
8679 | parent->txchan_per_port[i] = (16 / num_ports); | |
8680 | ||
f10a1f2e | 8681 | pr_info("niu%d: Port %u [%u RX chans] [%u TX chans]\n", |
a3138df9 DM |
8682 | parent->index, i, |
8683 | parent->rxchan_per_port[i], | |
8684 | parent->txchan_per_port[i]); | |
8685 | } | |
8686 | } | |
8687 | ||
8688 | static void __devinit niu_divide_channels(struct niu_parent *parent, | |
8689 | int num_10g, int num_1g) | |
8690 | { | |
8691 | int num_ports = parent->num_ports; | |
8692 | int rx_chans_per_10g, rx_chans_per_1g; | |
8693 | int tx_chans_per_10g, tx_chans_per_1g; | |
8694 | int i, tot_rx, tot_tx; | |
8695 | ||
8696 | if (!num_10g || !num_1g) { | |
8697 | rx_chans_per_10g = rx_chans_per_1g = | |
8698 | (NIU_NUM_RXCHAN / num_ports); | |
8699 | tx_chans_per_10g = tx_chans_per_1g = | |
8700 | (NIU_NUM_TXCHAN / num_ports); | |
8701 | } else { | |
8702 | rx_chans_per_1g = NIU_NUM_RXCHAN / 8; | |
8703 | rx_chans_per_10g = (NIU_NUM_RXCHAN - | |
8704 | (rx_chans_per_1g * num_1g)) / | |
8705 | num_10g; | |
8706 | ||
8707 | tx_chans_per_1g = NIU_NUM_TXCHAN / 6; | |
8708 | tx_chans_per_10g = (NIU_NUM_TXCHAN - | |
8709 | (tx_chans_per_1g * num_1g)) / | |
8710 | num_10g; | |
8711 | } | |
8712 | ||
8713 | tot_rx = tot_tx = 0; | |
8714 | for (i = 0; i < num_ports; i++) { | |
8715 | int type = phy_decode(parent->port_phy, i); | |
8716 | ||
8717 | if (type == PORT_TYPE_10G) { | |
8718 | parent->rxchan_per_port[i] = rx_chans_per_10g; | |
8719 | parent->txchan_per_port[i] = tx_chans_per_10g; | |
8720 | } else { | |
8721 | parent->rxchan_per_port[i] = rx_chans_per_1g; | |
8722 | parent->txchan_per_port[i] = tx_chans_per_1g; | |
8723 | } | |
f10a1f2e | 8724 | pr_info("niu%d: Port %u [%u RX chans] [%u TX chans]\n", |
a3138df9 DM |
8725 | parent->index, i, |
8726 | parent->rxchan_per_port[i], | |
8727 | parent->txchan_per_port[i]); | |
8728 | tot_rx += parent->rxchan_per_port[i]; | |
8729 | tot_tx += parent->txchan_per_port[i]; | |
8730 | } | |
8731 | ||
8732 | if (tot_rx > NIU_NUM_RXCHAN) { | |
f10a1f2e | 8733 | pr_err("niu%d: Too many RX channels (%d), resetting to one per port\n", |
a3138df9 DM |
8734 | parent->index, tot_rx); |
8735 | for (i = 0; i < num_ports; i++) | |
8736 | parent->rxchan_per_port[i] = 1; | |
8737 | } | |
8738 | if (tot_tx > NIU_NUM_TXCHAN) { | |
f10a1f2e | 8739 | pr_err("niu%d: Too many TX channels (%d), resetting to one per port\n", |
a3138df9 DM |
8740 | parent->index, tot_tx); |
8741 | for (i = 0; i < num_ports; i++) | |
8742 | parent->txchan_per_port[i] = 1; | |
8743 | } | |
8744 | if (tot_rx < NIU_NUM_RXCHAN || tot_tx < NIU_NUM_TXCHAN) { | |
f10a1f2e JP |
8745 | pr_warning("niu%d: Driver bug, wasted channels, RX[%d] TX[%d]\n", |
8746 | parent->index, tot_rx, tot_tx); | |
a3138df9 DM |
8747 | } |
8748 | } | |
8749 | ||
8750 | static void __devinit niu_divide_rdc_groups(struct niu_parent *parent, | |
8751 | int num_10g, int num_1g) | |
8752 | { | |
8753 | int i, num_ports = parent->num_ports; | |
8754 | int rdc_group, rdc_groups_per_port; | |
8755 | int rdc_channel_base; | |
8756 | ||
8757 | rdc_group = 0; | |
8758 | rdc_groups_per_port = NIU_NUM_RDC_TABLES / num_ports; | |
8759 | ||
8760 | rdc_channel_base = 0; | |
8761 | ||
8762 | for (i = 0; i < num_ports; i++) { | |
8763 | struct niu_rdc_tables *tp = &parent->rdc_group_cfg[i]; | |
8764 | int grp, num_channels = parent->rxchan_per_port[i]; | |
8765 | int this_channel_offset; | |
8766 | ||
8767 | tp->first_table_num = rdc_group; | |
8768 | tp->num_tables = rdc_groups_per_port; | |
8769 | this_channel_offset = 0; | |
8770 | for (grp = 0; grp < tp->num_tables; grp++) { | |
8771 | struct rdc_table *rt = &tp->tables[grp]; | |
8772 | int slot; | |
8773 | ||
f10a1f2e | 8774 | pr_info("niu%d: Port %d RDC tbl(%d) [ ", |
a3138df9 DM |
8775 | parent->index, i, tp->first_table_num + grp); |
8776 | for (slot = 0; slot < NIU_RDC_TABLE_SLOTS; slot++) { | |
8777 | rt->rxdma_channel[slot] = | |
8778 | rdc_channel_base + this_channel_offset; | |
8779 | ||
f10a1f2e | 8780 | pr_cont("%d ", rt->rxdma_channel[slot]); |
a3138df9 DM |
8781 | |
8782 | if (++this_channel_offset == num_channels) | |
8783 | this_channel_offset = 0; | |
8784 | } | |
f10a1f2e | 8785 | pr_cont("]\n"); |
a3138df9 DM |
8786 | } |
8787 | ||
8788 | parent->rdc_default[i] = rdc_channel_base; | |
8789 | ||
8790 | rdc_channel_base += num_channels; | |
8791 | rdc_group += rdc_groups_per_port; | |
8792 | } | |
8793 | } | |
8794 | ||
8795 | static int __devinit fill_phy_probe_info(struct niu *np, | |
8796 | struct niu_parent *parent, | |
8797 | struct phy_probe_info *info) | |
8798 | { | |
8799 | unsigned long flags; | |
8800 | int port, err; | |
8801 | ||
8802 | memset(info, 0, sizeof(*info)); | |
8803 | ||
8804 | /* Port 0 to 7 are reserved for onboard Serdes, probe the rest. */ | |
8805 | niu_lock_parent(np, flags); | |
8806 | err = 0; | |
8807 | for (port = 8; port < 32; port++) { | |
8808 | int dev_id_1, dev_id_2; | |
8809 | ||
8810 | dev_id_1 = mdio_read(np, port, | |
8811 | NIU_PMA_PMD_DEV_ADDR, MII_PHYSID1); | |
8812 | dev_id_2 = mdio_read(np, port, | |
8813 | NIU_PMA_PMD_DEV_ADDR, MII_PHYSID2); | |
8814 | err = phy_record(parent, info, dev_id_1, dev_id_2, port, | |
8815 | PHY_TYPE_PMA_PMD); | |
8816 | if (err) | |
8817 | break; | |
8818 | dev_id_1 = mdio_read(np, port, | |
8819 | NIU_PCS_DEV_ADDR, MII_PHYSID1); | |
8820 | dev_id_2 = mdio_read(np, port, | |
8821 | NIU_PCS_DEV_ADDR, MII_PHYSID2); | |
8822 | err = phy_record(parent, info, dev_id_1, dev_id_2, port, | |
8823 | PHY_TYPE_PCS); | |
8824 | if (err) | |
8825 | break; | |
8826 | dev_id_1 = mii_read(np, port, MII_PHYSID1); | |
8827 | dev_id_2 = mii_read(np, port, MII_PHYSID2); | |
8828 | err = phy_record(parent, info, dev_id_1, dev_id_2, port, | |
8829 | PHY_TYPE_MII); | |
8830 | if (err) | |
8831 | break; | |
8832 | } | |
8833 | niu_unlock_parent(np, flags); | |
8834 | ||
8835 | return err; | |
8836 | } | |
8837 | ||
8838 | static int __devinit walk_phys(struct niu *np, struct niu_parent *parent) | |
8839 | { | |
8840 | struct phy_probe_info *info = &parent->phy_probe_info; | |
8841 | int lowest_10g, lowest_1g; | |
8842 | int num_10g, num_1g; | |
8843 | u32 val; | |
8844 | int err; | |
8845 | ||
e3e081e1 SB |
8846 | num_10g = num_1g = 0; |
8847 | ||
f9af8574 MW |
8848 | if (!strcmp(np->vpd.model, NIU_ALONSO_MDL_STR) || |
8849 | !strcmp(np->vpd.model, NIU_KIMI_MDL_STR)) { | |
5fbd7e24 MW |
8850 | num_10g = 0; |
8851 | num_1g = 2; | |
8852 | parent->plat_type = PLAT_TYPE_ATCA_CP3220; | |
8853 | parent->num_ports = 4; | |
8854 | val = (phy_encode(PORT_TYPE_1G, 0) | | |
8855 | phy_encode(PORT_TYPE_1G, 1) | | |
a3138df9 DM |
8856 | phy_encode(PORT_TYPE_1G, 2) | |
8857 | phy_encode(PORT_TYPE_1G, 3)); | |
f9af8574 | 8858 | } else if (!strcmp(np->vpd.model, NIU_FOXXY_MDL_STR)) { |
a5d6ab56 MW |
8859 | num_10g = 2; |
8860 | num_1g = 0; | |
8861 | parent->num_ports = 2; | |
8862 | val = (phy_encode(PORT_TYPE_10G, 0) | | |
8863 | phy_encode(PORT_TYPE_10G, 1)); | |
e3e081e1 SB |
8864 | } else if ((np->flags & NIU_FLAGS_XCVR_SERDES) && |
8865 | (parent->plat_type == PLAT_TYPE_NIU)) { | |
8866 | /* this is the Monza case */ | |
8867 | if (np->flags & NIU_FLAGS_10G) { | |
8868 | val = (phy_encode(PORT_TYPE_10G, 0) | | |
8869 | phy_encode(PORT_TYPE_10G, 1)); | |
8870 | } else { | |
8871 | val = (phy_encode(PORT_TYPE_1G, 0) | | |
8872 | phy_encode(PORT_TYPE_1G, 1)); | |
8873 | } | |
5fbd7e24 MW |
8874 | } else { |
8875 | err = fill_phy_probe_info(np, parent, info); | |
8876 | if (err) | |
8877 | return err; | |
a3138df9 | 8878 | |
5fbd7e24 MW |
8879 | num_10g = count_10g_ports(info, &lowest_10g); |
8880 | num_1g = count_1g_ports(info, &lowest_1g); | |
a3138df9 | 8881 | |
5fbd7e24 MW |
8882 | switch ((num_10g << 4) | num_1g) { |
8883 | case 0x24: | |
8884 | if (lowest_1g == 10) | |
8885 | parent->plat_type = PLAT_TYPE_VF_P0; | |
8886 | else if (lowest_1g == 26) | |
8887 | parent->plat_type = PLAT_TYPE_VF_P1; | |
8888 | else | |
8889 | goto unknown_vg_1g_port; | |
a3138df9 | 8890 | |
5fbd7e24 MW |
8891 | /* fallthru */ |
8892 | case 0x22: | |
a3138df9 | 8893 | val = (phy_encode(PORT_TYPE_10G, 0) | |
a3138df9 DM |
8894 | phy_encode(PORT_TYPE_10G, 1) | |
8895 | phy_encode(PORT_TYPE_1G, 2) | | |
8896 | phy_encode(PORT_TYPE_1G, 3)); | |
5fbd7e24 | 8897 | break; |
a3138df9 | 8898 | |
5fbd7e24 MW |
8899 | case 0x20: |
8900 | val = (phy_encode(PORT_TYPE_10G, 0) | | |
8901 | phy_encode(PORT_TYPE_10G, 1)); | |
8902 | break; | |
a3138df9 | 8903 | |
5fbd7e24 MW |
8904 | case 0x10: |
8905 | val = phy_encode(PORT_TYPE_10G, np->port); | |
8906 | break; | |
a3138df9 | 8907 | |
5fbd7e24 MW |
8908 | case 0x14: |
8909 | if (lowest_1g == 10) | |
8910 | parent->plat_type = PLAT_TYPE_VF_P0; | |
8911 | else if (lowest_1g == 26) | |
8912 | parent->plat_type = PLAT_TYPE_VF_P1; | |
8913 | else | |
8914 | goto unknown_vg_1g_port; | |
8915 | ||
8916 | /* fallthru */ | |
8917 | case 0x13: | |
8918 | if ((lowest_10g & 0x7) == 0) | |
8919 | val = (phy_encode(PORT_TYPE_10G, 0) | | |
8920 | phy_encode(PORT_TYPE_1G, 1) | | |
8921 | phy_encode(PORT_TYPE_1G, 2) | | |
8922 | phy_encode(PORT_TYPE_1G, 3)); | |
8923 | else | |
8924 | val = (phy_encode(PORT_TYPE_1G, 0) | | |
8925 | phy_encode(PORT_TYPE_10G, 1) | | |
8926 | phy_encode(PORT_TYPE_1G, 2) | | |
8927 | phy_encode(PORT_TYPE_1G, 3)); | |
8928 | break; | |
8929 | ||
8930 | case 0x04: | |
8931 | if (lowest_1g == 10) | |
8932 | parent->plat_type = PLAT_TYPE_VF_P0; | |
8933 | else if (lowest_1g == 26) | |
8934 | parent->plat_type = PLAT_TYPE_VF_P1; | |
8935 | else | |
8936 | goto unknown_vg_1g_port; | |
8937 | ||
8938 | val = (phy_encode(PORT_TYPE_1G, 0) | | |
8939 | phy_encode(PORT_TYPE_1G, 1) | | |
8940 | phy_encode(PORT_TYPE_1G, 2) | | |
8941 | phy_encode(PORT_TYPE_1G, 3)); | |
8942 | break; | |
8943 | ||
8944 | default: | |
f10a1f2e | 8945 | pr_err("Unsupported port config 10G[%d] 1G[%d]\n", |
5fbd7e24 MW |
8946 | num_10g, num_1g); |
8947 | return -EINVAL; | |
8948 | } | |
a3138df9 DM |
8949 | } |
8950 | ||
8951 | parent->port_phy = val; | |
8952 | ||
8953 | if (parent->plat_type == PLAT_TYPE_NIU) | |
8954 | niu_n2_divide_channels(parent); | |
8955 | else | |
8956 | niu_divide_channels(parent, num_10g, num_1g); | |
8957 | ||
8958 | niu_divide_rdc_groups(parent, num_10g, num_1g); | |
8959 | ||
8960 | return 0; | |
8961 | ||
8962 | unknown_vg_1g_port: | |
f10a1f2e | 8963 | pr_err("Cannot identify platform type, 1gport=%d\n", lowest_1g); |
a3138df9 DM |
8964 | return -EINVAL; |
8965 | } | |
8966 | ||
8967 | static int __devinit niu_probe_ports(struct niu *np) | |
8968 | { | |
8969 | struct niu_parent *parent = np->parent; | |
8970 | int err, i; | |
8971 | ||
a3138df9 DM |
8972 | if (parent->port_phy == PORT_PHY_UNKNOWN) { |
8973 | err = walk_phys(np, parent); | |
8974 | if (err) | |
8975 | return err; | |
8976 | ||
8977 | niu_set_ldg_timer_res(np, 2); | |
8978 | for (i = 0; i <= LDN_MAX; i++) | |
8979 | niu_ldn_irq_enable(np, i, 0); | |
8980 | } | |
8981 | ||
8982 | if (parent->port_phy == PORT_PHY_INVALID) | |
8983 | return -EINVAL; | |
8984 | ||
8985 | return 0; | |
8986 | } | |
8987 | ||
8988 | static int __devinit niu_classifier_swstate_init(struct niu *np) | |
8989 | { | |
8990 | struct niu_classifier *cp = &np->clas; | |
8991 | ||
2d96cf8c SB |
8992 | cp->tcam_top = (u16) np->port; |
8993 | cp->tcam_sz = np->parent->tcam_num_entries / np->parent->num_ports; | |
a3138df9 DM |
8994 | cp->h1_init = 0xffffffff; |
8995 | cp->h2_init = 0xffff; | |
8996 | ||
8997 | return fflp_early_init(np); | |
8998 | } | |
8999 | ||
9000 | static void __devinit niu_link_config_init(struct niu *np) | |
9001 | { | |
9002 | struct niu_link_config *lp = &np->link_config; | |
9003 | ||
9004 | lp->advertising = (ADVERTISED_10baseT_Half | | |
9005 | ADVERTISED_10baseT_Full | | |
9006 | ADVERTISED_100baseT_Half | | |
9007 | ADVERTISED_100baseT_Full | | |
9008 | ADVERTISED_1000baseT_Half | | |
9009 | ADVERTISED_1000baseT_Full | | |
9010 | ADVERTISED_10000baseT_Full | | |
9011 | ADVERTISED_Autoneg); | |
9012 | lp->speed = lp->active_speed = SPEED_INVALID; | |
38bb045d CB |
9013 | lp->duplex = DUPLEX_FULL; |
9014 | lp->active_duplex = DUPLEX_INVALID; | |
9015 | lp->autoneg = 1; | |
a3138df9 DM |
9016 | #if 0 |
9017 | lp->loopback_mode = LOOPBACK_MAC; | |
9018 | lp->active_speed = SPEED_10000; | |
9019 | lp->active_duplex = DUPLEX_FULL; | |
9020 | #else | |
9021 | lp->loopback_mode = LOOPBACK_DISABLED; | |
9022 | #endif | |
9023 | } | |
9024 | ||
9025 | static int __devinit niu_init_mac_ipp_pcs_base(struct niu *np) | |
9026 | { | |
9027 | switch (np->port) { | |
9028 | case 0: | |
9029 | np->mac_regs = np->regs + XMAC_PORT0_OFF; | |
9030 | np->ipp_off = 0x00000; | |
9031 | np->pcs_off = 0x04000; | |
9032 | np->xpcs_off = 0x02000; | |
9033 | break; | |
9034 | ||
9035 | case 1: | |
9036 | np->mac_regs = np->regs + XMAC_PORT1_OFF; | |
9037 | np->ipp_off = 0x08000; | |
9038 | np->pcs_off = 0x0a000; | |
9039 | np->xpcs_off = 0x08000; | |
9040 | break; | |
9041 | ||
9042 | case 2: | |
9043 | np->mac_regs = np->regs + BMAC_PORT2_OFF; | |
9044 | np->ipp_off = 0x04000; | |
9045 | np->pcs_off = 0x0e000; | |
9046 | np->xpcs_off = ~0UL; | |
9047 | break; | |
9048 | ||
9049 | case 3: | |
9050 | np->mac_regs = np->regs + BMAC_PORT3_OFF; | |
9051 | np->ipp_off = 0x0c000; | |
9052 | np->pcs_off = 0x12000; | |
9053 | np->xpcs_off = ~0UL; | |
9054 | break; | |
9055 | ||
9056 | default: | |
f10a1f2e | 9057 | dev_err(np->device, "Port %u is invalid, cannot compute MAC block offset\n", np->port); |
a3138df9 DM |
9058 | return -EINVAL; |
9059 | } | |
9060 | ||
9061 | return 0; | |
9062 | } | |
9063 | ||
9064 | static void __devinit niu_try_msix(struct niu *np, u8 *ldg_num_map) | |
9065 | { | |
9066 | struct msix_entry msi_vec[NIU_NUM_LDG]; | |
9067 | struct niu_parent *parent = np->parent; | |
9068 | struct pci_dev *pdev = np->pdev; | |
9069 | int i, num_irqs, err; | |
9070 | u8 first_ldg; | |
9071 | ||
9072 | first_ldg = (NIU_NUM_LDG / parent->num_ports) * np->port; | |
9073 | for (i = 0; i < (NIU_NUM_LDG / parent->num_ports); i++) | |
9074 | ldg_num_map[i] = first_ldg + i; | |
9075 | ||
9076 | num_irqs = (parent->rxchan_per_port[np->port] + | |
9077 | parent->txchan_per_port[np->port] + | |
9078 | (np->port == 0 ? 3 : 1)); | |
9079 | BUG_ON(num_irqs > (NIU_NUM_LDG / parent->num_ports)); | |
9080 | ||
9081 | retry: | |
9082 | for (i = 0; i < num_irqs; i++) { | |
9083 | msi_vec[i].vector = 0; | |
9084 | msi_vec[i].entry = i; | |
9085 | } | |
9086 | ||
9087 | err = pci_enable_msix(pdev, msi_vec, num_irqs); | |
9088 | if (err < 0) { | |
9089 | np->flags &= ~NIU_FLAGS_MSIX; | |
9090 | return; | |
9091 | } | |
9092 | if (err > 0) { | |
9093 | num_irqs = err; | |
9094 | goto retry; | |
9095 | } | |
9096 | ||
9097 | np->flags |= NIU_FLAGS_MSIX; | |
9098 | for (i = 0; i < num_irqs; i++) | |
9099 | np->ldg[i].irq = msi_vec[i].vector; | |
9100 | np->num_ldg = num_irqs; | |
9101 | } | |
9102 | ||
9103 | static int __devinit niu_n2_irq_init(struct niu *np, u8 *ldg_num_map) | |
9104 | { | |
9105 | #ifdef CONFIG_SPARC64 | |
2dc11581 | 9106 | struct platform_device *op = np->op; |
a3138df9 DM |
9107 | const u32 *int_prop; |
9108 | int i; | |
9109 | ||
61c7a080 | 9110 | int_prop = of_get_property(op->dev.of_node, "interrupts", NULL); |
a3138df9 DM |
9111 | if (!int_prop) |
9112 | return -ENODEV; | |
9113 | ||
1636f8ac | 9114 | for (i = 0; i < op->archdata.num_irqs; i++) { |
a3138df9 | 9115 | ldg_num_map[i] = int_prop[i]; |
1636f8ac | 9116 | np->ldg[i].irq = op->archdata.irqs[i]; |
a3138df9 DM |
9117 | } |
9118 | ||
1636f8ac | 9119 | np->num_ldg = op->archdata.num_irqs; |
a3138df9 DM |
9120 | |
9121 | return 0; | |
9122 | #else | |
9123 | return -EINVAL; | |
9124 | #endif | |
9125 | } | |
9126 | ||
9127 | static int __devinit niu_ldg_init(struct niu *np) | |
9128 | { | |
9129 | struct niu_parent *parent = np->parent; | |
9130 | u8 ldg_num_map[NIU_NUM_LDG]; | |
9131 | int first_chan, num_chan; | |
9132 | int i, err, ldg_rotor; | |
9133 | u8 port; | |
9134 | ||
9135 | np->num_ldg = 1; | |
9136 | np->ldg[0].irq = np->dev->irq; | |
9137 | if (parent->plat_type == PLAT_TYPE_NIU) { | |
9138 | err = niu_n2_irq_init(np, ldg_num_map); | |
9139 | if (err) | |
9140 | return err; | |
9141 | } else | |
9142 | niu_try_msix(np, ldg_num_map); | |
9143 | ||
9144 | port = np->port; | |
9145 | for (i = 0; i < np->num_ldg; i++) { | |
9146 | struct niu_ldg *lp = &np->ldg[i]; | |
9147 | ||
9148 | netif_napi_add(np->dev, &lp->napi, niu_poll, 64); | |
9149 | ||
9150 | lp->np = np; | |
9151 | lp->ldg_num = ldg_num_map[i]; | |
9152 | lp->timer = 2; /* XXX */ | |
9153 | ||
9154 | /* On N2 NIU the firmware has setup the SID mappings so they go | |
9155 | * to the correct values that will route the LDG to the proper | |
9156 | * interrupt in the NCU interrupt table. | |
9157 | */ | |
9158 | if (np->parent->plat_type != PLAT_TYPE_NIU) { | |
9159 | err = niu_set_ldg_sid(np, lp->ldg_num, port, i); | |
9160 | if (err) | |
9161 | return err; | |
9162 | } | |
9163 | } | |
9164 | ||
9165 | /* We adopt the LDG assignment ordering used by the N2 NIU | |
9166 | * 'interrupt' properties because that simplifies a lot of | |
9167 | * things. This ordering is: | |
9168 | * | |
9169 | * MAC | |
9170 | * MIF (if port zero) | |
9171 | * SYSERR (if port zero) | |
9172 | * RX channels | |
9173 | * TX channels | |
9174 | */ | |
9175 | ||
9176 | ldg_rotor = 0; | |
9177 | ||
9178 | err = niu_ldg_assign_ldn(np, parent, ldg_num_map[ldg_rotor], | |
9179 | LDN_MAC(port)); | |
9180 | if (err) | |
9181 | return err; | |
9182 | ||
9183 | ldg_rotor++; | |
9184 | if (ldg_rotor == np->num_ldg) | |
9185 | ldg_rotor = 0; | |
9186 | ||
9187 | if (port == 0) { | |
9188 | err = niu_ldg_assign_ldn(np, parent, | |
9189 | ldg_num_map[ldg_rotor], | |
9190 | LDN_MIF); | |
9191 | if (err) | |
9192 | return err; | |
9193 | ||
9194 | ldg_rotor++; | |
9195 | if (ldg_rotor == np->num_ldg) | |
9196 | ldg_rotor = 0; | |
9197 | ||
9198 | err = niu_ldg_assign_ldn(np, parent, | |
9199 | ldg_num_map[ldg_rotor], | |
9200 | LDN_DEVICE_ERROR); | |
9201 | if (err) | |
9202 | return err; | |
9203 | ||
9204 | ldg_rotor++; | |
9205 | if (ldg_rotor == np->num_ldg) | |
9206 | ldg_rotor = 0; | |
9207 | ||
9208 | } | |
9209 | ||
9210 | first_chan = 0; | |
9211 | for (i = 0; i < port; i++) | |
9212 | first_chan += parent->rxchan_per_port[port]; | |
9213 | num_chan = parent->rxchan_per_port[port]; | |
9214 | ||
9215 | for (i = first_chan; i < (first_chan + num_chan); i++) { | |
9216 | err = niu_ldg_assign_ldn(np, parent, | |
9217 | ldg_num_map[ldg_rotor], | |
9218 | LDN_RXDMA(i)); | |
9219 | if (err) | |
9220 | return err; | |
9221 | ldg_rotor++; | |
9222 | if (ldg_rotor == np->num_ldg) | |
9223 | ldg_rotor = 0; | |
9224 | } | |
9225 | ||
9226 | first_chan = 0; | |
9227 | for (i = 0; i < port; i++) | |
9228 | first_chan += parent->txchan_per_port[port]; | |
9229 | num_chan = parent->txchan_per_port[port]; | |
9230 | for (i = first_chan; i < (first_chan + num_chan); i++) { | |
9231 | err = niu_ldg_assign_ldn(np, parent, | |
9232 | ldg_num_map[ldg_rotor], | |
9233 | LDN_TXDMA(i)); | |
9234 | if (err) | |
9235 | return err; | |
9236 | ldg_rotor++; | |
9237 | if (ldg_rotor == np->num_ldg) | |
9238 | ldg_rotor = 0; | |
9239 | } | |
9240 | ||
9241 | return 0; | |
9242 | } | |
9243 | ||
9244 | static void __devexit niu_ldg_free(struct niu *np) | |
9245 | { | |
9246 | if (np->flags & NIU_FLAGS_MSIX) | |
9247 | pci_disable_msix(np->pdev); | |
9248 | } | |
9249 | ||
9250 | static int __devinit niu_get_of_props(struct niu *np) | |
9251 | { | |
9252 | #ifdef CONFIG_SPARC64 | |
9253 | struct net_device *dev = np->dev; | |
9254 | struct device_node *dp; | |
9255 | const char *phy_type; | |
9256 | const u8 *mac_addr; | |
f9af8574 | 9257 | const char *model; |
a3138df9 DM |
9258 | int prop_len; |
9259 | ||
9260 | if (np->parent->plat_type == PLAT_TYPE_NIU) | |
61c7a080 | 9261 | dp = np->op->dev.of_node; |
a3138df9 DM |
9262 | else |
9263 | dp = pci_device_to_OF_node(np->pdev); | |
9264 | ||
9265 | phy_type = of_get_property(dp, "phy-type", &prop_len); | |
9266 | if (!phy_type) { | |
f10a1f2e JP |
9267 | netdev_err(dev, "%s: OF node lacks phy-type property\n", |
9268 | dp->full_name); | |
a3138df9 DM |
9269 | return -EINVAL; |
9270 | } | |
9271 | ||
9272 | if (!strcmp(phy_type, "none")) | |
9273 | return -ENODEV; | |
9274 | ||
9275 | strcpy(np->vpd.phy_type, phy_type); | |
9276 | ||
9277 | if (niu_phy_type_prop_decode(np, np->vpd.phy_type)) { | |
f10a1f2e JP |
9278 | netdev_err(dev, "%s: Illegal phy string [%s]\n", |
9279 | dp->full_name, np->vpd.phy_type); | |
a3138df9 DM |
9280 | return -EINVAL; |
9281 | } | |
9282 | ||
9283 | mac_addr = of_get_property(dp, "local-mac-address", &prop_len); | |
9284 | if (!mac_addr) { | |
f10a1f2e JP |
9285 | netdev_err(dev, "%s: OF node lacks local-mac-address property\n", |
9286 | dp->full_name); | |
a3138df9 DM |
9287 | return -EINVAL; |
9288 | } | |
9289 | if (prop_len != dev->addr_len) { | |
f10a1f2e JP |
9290 | netdev_err(dev, "%s: OF MAC address prop len (%d) is wrong\n", |
9291 | dp->full_name, prop_len); | |
a3138df9 DM |
9292 | } |
9293 | memcpy(dev->perm_addr, mac_addr, dev->addr_len); | |
9294 | if (!is_valid_ether_addr(&dev->perm_addr[0])) { | |
f10a1f2e JP |
9295 | netdev_err(dev, "%s: OF MAC address is invalid\n", |
9296 | dp->full_name); | |
9297 | netdev_err(dev, "%s: [ %pM ]\n", dp->full_name, dev->perm_addr); | |
a3138df9 DM |
9298 | return -EINVAL; |
9299 | } | |
9300 | ||
9301 | memcpy(dev->dev_addr, dev->perm_addr, dev->addr_len); | |
f9af8574 MW |
9302 | |
9303 | model = of_get_property(dp, "model", &prop_len); | |
9304 | ||
9305 | if (model) | |
9306 | strcpy(np->vpd.model, model); | |
a3138df9 | 9307 | |
9c5cd670 TC |
9308 | if (of_find_property(dp, "hot-swappable-phy", &prop_len)) { |
9309 | np->flags |= (NIU_FLAGS_10G | NIU_FLAGS_FIBER | | |
9310 | NIU_FLAGS_HOTPLUG_PHY); | |
9311 | } | |
9312 | ||
a3138df9 DM |
9313 | return 0; |
9314 | #else | |
9315 | return -EINVAL; | |
9316 | #endif | |
9317 | } | |
9318 | ||
9319 | static int __devinit niu_get_invariants(struct niu *np) | |
9320 | { | |
9321 | int err, have_props; | |
9322 | u32 offset; | |
9323 | ||
9324 | err = niu_get_of_props(np); | |
9325 | if (err == -ENODEV) | |
9326 | return err; | |
9327 | ||
9328 | have_props = !err; | |
9329 | ||
a3138df9 DM |
9330 | err = niu_init_mac_ipp_pcs_base(np); |
9331 | if (err) | |
9332 | return err; | |
9333 | ||
7f7c4072 MW |
9334 | if (have_props) { |
9335 | err = niu_get_and_validate_port(np); | |
9336 | if (err) | |
9337 | return err; | |
9338 | ||
9339 | } else { | |
a3138df9 DM |
9340 | if (np->parent->plat_type == PLAT_TYPE_NIU) |
9341 | return -EINVAL; | |
9342 | ||
9343 | nw64(ESPC_PIO_EN, ESPC_PIO_EN_ENABLE); | |
9344 | offset = niu_pci_vpd_offset(np); | |
f10a1f2e JP |
9345 | netif_printk(np, probe, KERN_DEBUG, np->dev, |
9346 | "%s() VPD offset [%08x]\n", __func__, offset); | |
a3138df9 DM |
9347 | if (offset) |
9348 | niu_pci_vpd_fetch(np, offset); | |
9349 | nw64(ESPC_PIO_EN, 0); | |
9350 | ||
7f7c4072 | 9351 | if (np->flags & NIU_FLAGS_VPD_VALID) { |
a3138df9 | 9352 | niu_pci_vpd_validate(np); |
7f7c4072 MW |
9353 | err = niu_get_and_validate_port(np); |
9354 | if (err) | |
9355 | return err; | |
9356 | } | |
a3138df9 DM |
9357 | |
9358 | if (!(np->flags & NIU_FLAGS_VPD_VALID)) { | |
7f7c4072 MW |
9359 | err = niu_get_and_validate_port(np); |
9360 | if (err) | |
9361 | return err; | |
a3138df9 DM |
9362 | err = niu_pci_probe_sprom(np); |
9363 | if (err) | |
9364 | return err; | |
9365 | } | |
9366 | } | |
9367 | ||
9368 | err = niu_probe_ports(np); | |
9369 | if (err) | |
9370 | return err; | |
9371 | ||
9372 | niu_ldg_init(np); | |
9373 | ||
9374 | niu_classifier_swstate_init(np); | |
9375 | niu_link_config_init(np); | |
9376 | ||
9377 | err = niu_determine_phy_disposition(np); | |
9378 | if (!err) | |
9379 | err = niu_init_link(np); | |
9380 | ||
9381 | return err; | |
9382 | } | |
9383 | ||
9384 | static LIST_HEAD(niu_parent_list); | |
9385 | static DEFINE_MUTEX(niu_parent_lock); | |
9386 | static int niu_parent_index; | |
9387 | ||
9388 | static ssize_t show_port_phy(struct device *dev, | |
9389 | struct device_attribute *attr, char *buf) | |
9390 | { | |
9391 | struct platform_device *plat_dev = to_platform_device(dev); | |
9392 | struct niu_parent *p = plat_dev->dev.platform_data; | |
9393 | u32 port_phy = p->port_phy; | |
9394 | char *orig_buf = buf; | |
9395 | int i; | |
9396 | ||
9397 | if (port_phy == PORT_PHY_UNKNOWN || | |
9398 | port_phy == PORT_PHY_INVALID) | |
9399 | return 0; | |
9400 | ||
9401 | for (i = 0; i < p->num_ports; i++) { | |
9402 | const char *type_str; | |
9403 | int type; | |
9404 | ||
9405 | type = phy_decode(port_phy, i); | |
9406 | if (type == PORT_TYPE_10G) | |
9407 | type_str = "10G"; | |
9408 | else | |
9409 | type_str = "1G"; | |
9410 | buf += sprintf(buf, | |
9411 | (i == 0) ? "%s" : " %s", | |
9412 | type_str); | |
9413 | } | |
9414 | buf += sprintf(buf, "\n"); | |
9415 | return buf - orig_buf; | |
9416 | } | |
9417 | ||
9418 | static ssize_t show_plat_type(struct device *dev, | |
9419 | struct device_attribute *attr, char *buf) | |
9420 | { | |
9421 | struct platform_device *plat_dev = to_platform_device(dev); | |
9422 | struct niu_parent *p = plat_dev->dev.platform_data; | |
9423 | const char *type_str; | |
9424 | ||
9425 | switch (p->plat_type) { | |
9426 | case PLAT_TYPE_ATLAS: | |
9427 | type_str = "atlas"; | |
9428 | break; | |
9429 | case PLAT_TYPE_NIU: | |
9430 | type_str = "niu"; | |
9431 | break; | |
9432 | case PLAT_TYPE_VF_P0: | |
9433 | type_str = "vf_p0"; | |
9434 | break; | |
9435 | case PLAT_TYPE_VF_P1: | |
9436 | type_str = "vf_p1"; | |
9437 | break; | |
9438 | default: | |
9439 | type_str = "unknown"; | |
9440 | break; | |
9441 | } | |
9442 | ||
9443 | return sprintf(buf, "%s\n", type_str); | |
9444 | } | |
9445 | ||
9446 | static ssize_t __show_chan_per_port(struct device *dev, | |
9447 | struct device_attribute *attr, char *buf, | |
9448 | int rx) | |
9449 | { | |
9450 | struct platform_device *plat_dev = to_platform_device(dev); | |
9451 | struct niu_parent *p = plat_dev->dev.platform_data; | |
9452 | char *orig_buf = buf; | |
9453 | u8 *arr; | |
9454 | int i; | |
9455 | ||
9456 | arr = (rx ? p->rxchan_per_port : p->txchan_per_port); | |
9457 | ||
9458 | for (i = 0; i < p->num_ports; i++) { | |
9459 | buf += sprintf(buf, | |
9460 | (i == 0) ? "%d" : " %d", | |
9461 | arr[i]); | |
9462 | } | |
9463 | buf += sprintf(buf, "\n"); | |
9464 | ||
9465 | return buf - orig_buf; | |
9466 | } | |
9467 | ||
9468 | static ssize_t show_rxchan_per_port(struct device *dev, | |
9469 | struct device_attribute *attr, char *buf) | |
9470 | { | |
9471 | return __show_chan_per_port(dev, attr, buf, 1); | |
9472 | } | |
9473 | ||
9474 | static ssize_t show_txchan_per_port(struct device *dev, | |
9475 | struct device_attribute *attr, char *buf) | |
9476 | { | |
9477 | return __show_chan_per_port(dev, attr, buf, 1); | |
9478 | } | |
9479 | ||
9480 | static ssize_t show_num_ports(struct device *dev, | |
9481 | struct device_attribute *attr, char *buf) | |
9482 | { | |
9483 | struct platform_device *plat_dev = to_platform_device(dev); | |
9484 | struct niu_parent *p = plat_dev->dev.platform_data; | |
9485 | ||
9486 | return sprintf(buf, "%d\n", p->num_ports); | |
9487 | } | |
9488 | ||
9489 | static struct device_attribute niu_parent_attributes[] = { | |
9490 | __ATTR(port_phy, S_IRUGO, show_port_phy, NULL), | |
9491 | __ATTR(plat_type, S_IRUGO, show_plat_type, NULL), | |
9492 | __ATTR(rxchan_per_port, S_IRUGO, show_rxchan_per_port, NULL), | |
9493 | __ATTR(txchan_per_port, S_IRUGO, show_txchan_per_port, NULL), | |
9494 | __ATTR(num_ports, S_IRUGO, show_num_ports, NULL), | |
9495 | {} | |
9496 | }; | |
9497 | ||
9498 | static struct niu_parent * __devinit niu_new_parent(struct niu *np, | |
9499 | union niu_parent_id *id, | |
9500 | u8 ptype) | |
9501 | { | |
9502 | struct platform_device *plat_dev; | |
9503 | struct niu_parent *p; | |
9504 | int i; | |
9505 | ||
a3138df9 DM |
9506 | plat_dev = platform_device_register_simple("niu", niu_parent_index, |
9507 | NULL, 0); | |
58f3e0a8 | 9508 | if (IS_ERR(plat_dev)) |
a3138df9 DM |
9509 | return NULL; |
9510 | ||
9511 | for (i = 0; attr_name(niu_parent_attributes[i]); i++) { | |
9512 | int err = device_create_file(&plat_dev->dev, | |
9513 | &niu_parent_attributes[i]); | |
9514 | if (err) | |
9515 | goto fail_unregister; | |
9516 | } | |
9517 | ||
9518 | p = kzalloc(sizeof(*p), GFP_KERNEL); | |
9519 | if (!p) | |
9520 | goto fail_unregister; | |
9521 | ||
9522 | p->index = niu_parent_index++; | |
9523 | ||
9524 | plat_dev->dev.platform_data = p; | |
9525 | p->plat_dev = plat_dev; | |
9526 | ||
9527 | memcpy(&p->id, id, sizeof(*id)); | |
9528 | p->plat_type = ptype; | |
9529 | INIT_LIST_HEAD(&p->list); | |
9530 | atomic_set(&p->refcnt, 0); | |
9531 | list_add(&p->list, &niu_parent_list); | |
9532 | spin_lock_init(&p->lock); | |
9533 | ||
9534 | p->rxdma_clock_divider = 7500; | |
9535 | ||
9536 | p->tcam_num_entries = NIU_PCI_TCAM_ENTRIES; | |
9537 | if (p->plat_type == PLAT_TYPE_NIU) | |
9538 | p->tcam_num_entries = NIU_NONPCI_TCAM_ENTRIES; | |
9539 | ||
9540 | for (i = CLASS_CODE_USER_PROG1; i <= CLASS_CODE_SCTP_IPV6; i++) { | |
9541 | int index = i - CLASS_CODE_USER_PROG1; | |
9542 | ||
9543 | p->tcam_key[index] = TCAM_KEY_TSEL; | |
9544 | p->flow_key[index] = (FLOW_KEY_IPSA | | |
9545 | FLOW_KEY_IPDA | | |
9546 | FLOW_KEY_PROTO | | |
9547 | (FLOW_KEY_L4_BYTE12 << | |
9548 | FLOW_KEY_L4_0_SHIFT) | | |
9549 | (FLOW_KEY_L4_BYTE12 << | |
9550 | FLOW_KEY_L4_1_SHIFT)); | |
9551 | } | |
9552 | ||
9553 | for (i = 0; i < LDN_MAX + 1; i++) | |
9554 | p->ldg_map[i] = LDG_INVALID; | |
9555 | ||
9556 | return p; | |
9557 | ||
9558 | fail_unregister: | |
9559 | platform_device_unregister(plat_dev); | |
9560 | return NULL; | |
9561 | } | |
9562 | ||
9563 | static struct niu_parent * __devinit niu_get_parent(struct niu *np, | |
9564 | union niu_parent_id *id, | |
9565 | u8 ptype) | |
9566 | { | |
9567 | struct niu_parent *p, *tmp; | |
9568 | int port = np->port; | |
9569 | ||
a3138df9 DM |
9570 | mutex_lock(&niu_parent_lock); |
9571 | p = NULL; | |
9572 | list_for_each_entry(tmp, &niu_parent_list, list) { | |
9573 | if (!memcmp(id, &tmp->id, sizeof(*id))) { | |
9574 | p = tmp; | |
9575 | break; | |
9576 | } | |
9577 | } | |
9578 | if (!p) | |
9579 | p = niu_new_parent(np, id, ptype); | |
9580 | ||
9581 | if (p) { | |
9582 | char port_name[6]; | |
9583 | int err; | |
9584 | ||
9585 | sprintf(port_name, "port%d", port); | |
9586 | err = sysfs_create_link(&p->plat_dev->dev.kobj, | |
9587 | &np->device->kobj, | |
9588 | port_name); | |
9589 | if (!err) { | |
9590 | p->ports[port] = np; | |
9591 | atomic_inc(&p->refcnt); | |
9592 | } | |
9593 | } | |
9594 | mutex_unlock(&niu_parent_lock); | |
9595 | ||
9596 | return p; | |
9597 | } | |
9598 | ||
9599 | static void niu_put_parent(struct niu *np) | |
9600 | { | |
9601 | struct niu_parent *p = np->parent; | |
9602 | u8 port = np->port; | |
9603 | char port_name[6]; | |
9604 | ||
9605 | BUG_ON(!p || p->ports[port] != np); | |
9606 | ||
f10a1f2e JP |
9607 | netif_printk(np, probe, KERN_DEBUG, np->dev, |
9608 | "%s() port[%u]\n", __func__, port); | |
a3138df9 DM |
9609 | |
9610 | sprintf(port_name, "port%d", port); | |
9611 | ||
9612 | mutex_lock(&niu_parent_lock); | |
9613 | ||
9614 | sysfs_remove_link(&p->plat_dev->dev.kobj, port_name); | |
9615 | ||
9616 | p->ports[port] = NULL; | |
9617 | np->parent = NULL; | |
9618 | ||
9619 | if (atomic_dec_and_test(&p->refcnt)) { | |
9620 | list_del(&p->list); | |
9621 | platform_device_unregister(p->plat_dev); | |
9622 | } | |
9623 | ||
9624 | mutex_unlock(&niu_parent_lock); | |
9625 | } | |
9626 | ||
9627 | static void *niu_pci_alloc_coherent(struct device *dev, size_t size, | |
9628 | u64 *handle, gfp_t flag) | |
9629 | { | |
9630 | dma_addr_t dh; | |
9631 | void *ret; | |
9632 | ||
9633 | ret = dma_alloc_coherent(dev, size, &dh, flag); | |
9634 | if (ret) | |
9635 | *handle = dh; | |
9636 | return ret; | |
9637 | } | |
9638 | ||
9639 | static void niu_pci_free_coherent(struct device *dev, size_t size, | |
9640 | void *cpu_addr, u64 handle) | |
9641 | { | |
9642 | dma_free_coherent(dev, size, cpu_addr, handle); | |
9643 | } | |
9644 | ||
9645 | static u64 niu_pci_map_page(struct device *dev, struct page *page, | |
9646 | unsigned long offset, size_t size, | |
9647 | enum dma_data_direction direction) | |
9648 | { | |
9649 | return dma_map_page(dev, page, offset, size, direction); | |
9650 | } | |
9651 | ||
9652 | static void niu_pci_unmap_page(struct device *dev, u64 dma_address, | |
9653 | size_t size, enum dma_data_direction direction) | |
9654 | { | |
a08b32df | 9655 | dma_unmap_page(dev, dma_address, size, direction); |
a3138df9 DM |
9656 | } |
9657 | ||
9658 | static u64 niu_pci_map_single(struct device *dev, void *cpu_addr, | |
9659 | size_t size, | |
9660 | enum dma_data_direction direction) | |
9661 | { | |
9662 | return dma_map_single(dev, cpu_addr, size, direction); | |
9663 | } | |
9664 | ||
9665 | static void niu_pci_unmap_single(struct device *dev, u64 dma_address, | |
9666 | size_t size, | |
9667 | enum dma_data_direction direction) | |
9668 | { | |
9669 | dma_unmap_single(dev, dma_address, size, direction); | |
9670 | } | |
9671 | ||
9672 | static const struct niu_ops niu_pci_ops = { | |
9673 | .alloc_coherent = niu_pci_alloc_coherent, | |
9674 | .free_coherent = niu_pci_free_coherent, | |
9675 | .map_page = niu_pci_map_page, | |
9676 | .unmap_page = niu_pci_unmap_page, | |
9677 | .map_single = niu_pci_map_single, | |
9678 | .unmap_single = niu_pci_unmap_single, | |
9679 | }; | |
9680 | ||
9681 | static void __devinit niu_driver_version(void) | |
9682 | { | |
9683 | static int niu_version_printed; | |
9684 | ||
9685 | if (niu_version_printed++ == 0) | |
9686 | pr_info("%s", version); | |
9687 | } | |
9688 | ||
9689 | static struct net_device * __devinit niu_alloc_and_init( | |
9690 | struct device *gen_dev, struct pci_dev *pdev, | |
2dc11581 | 9691 | struct platform_device *op, const struct niu_ops *ops, |
a3138df9 DM |
9692 | u8 port) |
9693 | { | |
b4c21639 | 9694 | struct net_device *dev; |
a3138df9 DM |
9695 | struct niu *np; |
9696 | ||
b4c21639 | 9697 | dev = alloc_etherdev_mq(sizeof(struct niu), NIU_NUM_TXCHAN); |
a3138df9 | 9698 | if (!dev) { |
f10a1f2e | 9699 | dev_err(gen_dev, "Etherdev alloc failed, aborting\n"); |
a3138df9 DM |
9700 | return NULL; |
9701 | } | |
9702 | ||
9703 | SET_NETDEV_DEV(dev, gen_dev); | |
9704 | ||
9705 | np = netdev_priv(dev); | |
9706 | np->dev = dev; | |
9707 | np->pdev = pdev; | |
9708 | np->op = op; | |
9709 | np->device = gen_dev; | |
9710 | np->ops = ops; | |
9711 | ||
9712 | np->msg_enable = niu_debug; | |
9713 | ||
9714 | spin_lock_init(&np->lock); | |
9715 | INIT_WORK(&np->reset_task, niu_reset_task); | |
9716 | ||
9717 | np->port = port; | |
9718 | ||
9719 | return dev; | |
9720 | } | |
9721 | ||
2c9171d4 SH |
9722 | static const struct net_device_ops niu_netdev_ops = { |
9723 | .ndo_open = niu_open, | |
9724 | .ndo_stop = niu_close, | |
00829823 | 9725 | .ndo_start_xmit = niu_start_xmit, |
2c9171d4 SH |
9726 | .ndo_get_stats = niu_get_stats, |
9727 | .ndo_set_multicast_list = niu_set_rx_mode, | |
9728 | .ndo_validate_addr = eth_validate_addr, | |
9729 | .ndo_set_mac_address = niu_set_mac_addr, | |
9730 | .ndo_do_ioctl = niu_ioctl, | |
9731 | .ndo_tx_timeout = niu_tx_timeout, | |
9732 | .ndo_change_mtu = niu_change_mtu, | |
9733 | }; | |
9734 | ||
a3138df9 DM |
9735 | static void __devinit niu_assign_netdev_ops(struct net_device *dev) |
9736 | { | |
2c9171d4 | 9737 | dev->netdev_ops = &niu_netdev_ops; |
a3138df9 DM |
9738 | dev->ethtool_ops = &niu_ethtool_ops; |
9739 | dev->watchdog_timeo = NIU_TX_TIMEOUT; | |
a3138df9 DM |
9740 | } |
9741 | ||
9742 | static void __devinit niu_device_announce(struct niu *np) | |
9743 | { | |
9744 | struct net_device *dev = np->dev; | |
a3138df9 | 9745 | |
e174961c | 9746 | pr_info("%s: NIU Ethernet %pM\n", dev->name, dev->dev_addr); |
a3138df9 | 9747 | |
5fbd7e24 MW |
9748 | if (np->parent->plat_type == PLAT_TYPE_ATCA_CP3220) { |
9749 | pr_info("%s: Port type[%s] mode[%s:%s] XCVR[%s] phy[%s]\n", | |
9750 | dev->name, | |
9751 | (np->flags & NIU_FLAGS_XMAC ? "XMAC" : "BMAC"), | |
9752 | (np->flags & NIU_FLAGS_10G ? "10G" : "1G"), | |
9753 | (np->flags & NIU_FLAGS_FIBER ? "RGMII FIBER" : "SERDES"), | |
9754 | (np->mac_xcvr == MAC_XCVR_MII ? "MII" : | |
9755 | (np->mac_xcvr == MAC_XCVR_PCS ? "PCS" : "XPCS")), | |
9756 | np->vpd.phy_type); | |
9757 | } else { | |
9758 | pr_info("%s: Port type[%s] mode[%s:%s] XCVR[%s] phy[%s]\n", | |
9759 | dev->name, | |
9760 | (np->flags & NIU_FLAGS_XMAC ? "XMAC" : "BMAC"), | |
9761 | (np->flags & NIU_FLAGS_10G ? "10G" : "1G"), | |
e3e081e1 SB |
9762 | (np->flags & NIU_FLAGS_FIBER ? "FIBER" : |
9763 | (np->flags & NIU_FLAGS_XCVR_SERDES ? "SERDES" : | |
9764 | "COPPER")), | |
5fbd7e24 MW |
9765 | (np->mac_xcvr == MAC_XCVR_MII ? "MII" : |
9766 | (np->mac_xcvr == MAC_XCVR_PCS ? "PCS" : "XPCS")), | |
9767 | np->vpd.phy_type); | |
9768 | } | |
a3138df9 DM |
9769 | } |
9770 | ||
3cfa856d DM |
9771 | static void __devinit niu_set_basic_features(struct net_device *dev) |
9772 | { | |
9773 | dev->features |= (NETIF_F_SG | NETIF_F_HW_CSUM | | |
9774 | NETIF_F_GRO | NETIF_F_RXHASH); | |
9775 | } | |
9776 | ||
a3138df9 DM |
9777 | static int __devinit niu_pci_init_one(struct pci_dev *pdev, |
9778 | const struct pci_device_id *ent) | |
9779 | { | |
a3138df9 DM |
9780 | union niu_parent_id parent_id; |
9781 | struct net_device *dev; | |
9782 | struct niu *np; | |
9783 | int err, pos; | |
9784 | u64 dma_mask; | |
9785 | u16 val16; | |
9786 | ||
9787 | niu_driver_version(); | |
9788 | ||
9789 | err = pci_enable_device(pdev); | |
9790 | if (err) { | |
f10a1f2e | 9791 | dev_err(&pdev->dev, "Cannot enable PCI device, aborting\n"); |
a3138df9 DM |
9792 | return err; |
9793 | } | |
9794 | ||
9795 | if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM) || | |
9796 | !(pci_resource_flags(pdev, 2) & IORESOURCE_MEM)) { | |
f10a1f2e | 9797 | dev_err(&pdev->dev, "Cannot find proper PCI device base addresses, aborting\n"); |
a3138df9 DM |
9798 | err = -ENODEV; |
9799 | goto err_out_disable_pdev; | |
9800 | } | |
9801 | ||
9802 | err = pci_request_regions(pdev, DRV_MODULE_NAME); | |
9803 | if (err) { | |
f10a1f2e | 9804 | dev_err(&pdev->dev, "Cannot obtain PCI resources, aborting\n"); |
a3138df9 DM |
9805 | goto err_out_disable_pdev; |
9806 | } | |
9807 | ||
9808 | pos = pci_find_capability(pdev, PCI_CAP_ID_EXP); | |
9809 | if (pos <= 0) { | |
f10a1f2e | 9810 | dev_err(&pdev->dev, "Cannot find PCI Express capability, aborting\n"); |
a3138df9 DM |
9811 | goto err_out_free_res; |
9812 | } | |
9813 | ||
9814 | dev = niu_alloc_and_init(&pdev->dev, pdev, NULL, | |
9815 | &niu_pci_ops, PCI_FUNC(pdev->devfn)); | |
9816 | if (!dev) { | |
9817 | err = -ENOMEM; | |
9818 | goto err_out_free_res; | |
9819 | } | |
9820 | np = netdev_priv(dev); | |
9821 | ||
9822 | memset(&parent_id, 0, sizeof(parent_id)); | |
9823 | parent_id.pci.domain = pci_domain_nr(pdev->bus); | |
9824 | parent_id.pci.bus = pdev->bus->number; | |
9825 | parent_id.pci.device = PCI_SLOT(pdev->devfn); | |
9826 | ||
9827 | np->parent = niu_get_parent(np, &parent_id, | |
9828 | PLAT_TYPE_ATLAS); | |
9829 | if (!np->parent) { | |
9830 | err = -ENOMEM; | |
9831 | goto err_out_free_dev; | |
9832 | } | |
9833 | ||
9834 | pci_read_config_word(pdev, pos + PCI_EXP_DEVCTL, &val16); | |
9835 | val16 &= ~PCI_EXP_DEVCTL_NOSNOOP_EN; | |
9836 | val16 |= (PCI_EXP_DEVCTL_CERE | | |
9837 | PCI_EXP_DEVCTL_NFERE | | |
9838 | PCI_EXP_DEVCTL_FERE | | |
9839 | PCI_EXP_DEVCTL_URRE | | |
9840 | PCI_EXP_DEVCTL_RELAX_EN); | |
9841 | pci_write_config_word(pdev, pos + PCI_EXP_DEVCTL, val16); | |
9842 | ||
8cbd9623 | 9843 | dma_mask = DMA_BIT_MASK(44); |
a3138df9 DM |
9844 | err = pci_set_dma_mask(pdev, dma_mask); |
9845 | if (!err) { | |
9846 | dev->features |= NETIF_F_HIGHDMA; | |
9847 | err = pci_set_consistent_dma_mask(pdev, dma_mask); | |
9848 | if (err) { | |
f10a1f2e | 9849 | dev_err(&pdev->dev, "Unable to obtain 44 bit DMA for consistent allocations, aborting\n"); |
a3138df9 DM |
9850 | goto err_out_release_parent; |
9851 | } | |
9852 | } | |
284901a9 YH |
9853 | if (err || dma_mask == DMA_BIT_MASK(32)) { |
9854 | err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); | |
a3138df9 | 9855 | if (err) { |
f10a1f2e | 9856 | dev_err(&pdev->dev, "No usable DMA configuration, aborting\n"); |
a3138df9 DM |
9857 | goto err_out_release_parent; |
9858 | } | |
9859 | } | |
9860 | ||
3cfa856d | 9861 | niu_set_basic_features(dev); |
a3138df9 | 9862 | |
19ecb6ba | 9863 | np->regs = pci_ioremap_bar(pdev, 0); |
a3138df9 | 9864 | if (!np->regs) { |
f10a1f2e | 9865 | dev_err(&pdev->dev, "Cannot map device registers, aborting\n"); |
a3138df9 DM |
9866 | err = -ENOMEM; |
9867 | goto err_out_release_parent; | |
9868 | } | |
9869 | ||
9870 | pci_set_master(pdev); | |
9871 | pci_save_state(pdev); | |
9872 | ||
9873 | dev->irq = pdev->irq; | |
9874 | ||
9875 | niu_assign_netdev_ops(dev); | |
9876 | ||
9877 | err = niu_get_invariants(np); | |
9878 | if (err) { | |
9879 | if (err != -ENODEV) | |
f10a1f2e | 9880 | dev_err(&pdev->dev, "Problem fetching invariants of chip, aborting\n"); |
a3138df9 DM |
9881 | goto err_out_iounmap; |
9882 | } | |
9883 | ||
9884 | err = register_netdev(dev); | |
9885 | if (err) { | |
f10a1f2e | 9886 | dev_err(&pdev->dev, "Cannot register net device, aborting\n"); |
a3138df9 DM |
9887 | goto err_out_iounmap; |
9888 | } | |
9889 | ||
9890 | pci_set_drvdata(pdev, dev); | |
9891 | ||
9892 | niu_device_announce(np); | |
9893 | ||
9894 | return 0; | |
9895 | ||
9896 | err_out_iounmap: | |
9897 | if (np->regs) { | |
9898 | iounmap(np->regs); | |
9899 | np->regs = NULL; | |
9900 | } | |
9901 | ||
9902 | err_out_release_parent: | |
9903 | niu_put_parent(np); | |
9904 | ||
9905 | err_out_free_dev: | |
9906 | free_netdev(dev); | |
9907 | ||
9908 | err_out_free_res: | |
9909 | pci_release_regions(pdev); | |
9910 | ||
9911 | err_out_disable_pdev: | |
9912 | pci_disable_device(pdev); | |
9913 | pci_set_drvdata(pdev, NULL); | |
9914 | ||
9915 | return err; | |
9916 | } | |
9917 | ||
9918 | static void __devexit niu_pci_remove_one(struct pci_dev *pdev) | |
9919 | { | |
9920 | struct net_device *dev = pci_get_drvdata(pdev); | |
9921 | ||
9922 | if (dev) { | |
9923 | struct niu *np = netdev_priv(dev); | |
9924 | ||
9925 | unregister_netdev(dev); | |
9926 | if (np->regs) { | |
9927 | iounmap(np->regs); | |
9928 | np->regs = NULL; | |
9929 | } | |
9930 | ||
9931 | niu_ldg_free(np); | |
9932 | ||
9933 | niu_put_parent(np); | |
9934 | ||
9935 | free_netdev(dev); | |
9936 | pci_release_regions(pdev); | |
9937 | pci_disable_device(pdev); | |
9938 | pci_set_drvdata(pdev, NULL); | |
9939 | } | |
9940 | } | |
9941 | ||
9942 | static int niu_suspend(struct pci_dev *pdev, pm_message_t state) | |
9943 | { | |
9944 | struct net_device *dev = pci_get_drvdata(pdev); | |
9945 | struct niu *np = netdev_priv(dev); | |
9946 | unsigned long flags; | |
9947 | ||
9948 | if (!netif_running(dev)) | |
9949 | return 0; | |
9950 | ||
9951 | flush_scheduled_work(); | |
9952 | niu_netif_stop(np); | |
9953 | ||
9954 | del_timer_sync(&np->timer); | |
9955 | ||
9956 | spin_lock_irqsave(&np->lock, flags); | |
9957 | niu_enable_interrupts(np, 0); | |
9958 | spin_unlock_irqrestore(&np->lock, flags); | |
9959 | ||
9960 | netif_device_detach(dev); | |
9961 | ||
9962 | spin_lock_irqsave(&np->lock, flags); | |
9963 | niu_stop_hw(np); | |
9964 | spin_unlock_irqrestore(&np->lock, flags); | |
9965 | ||
9966 | pci_save_state(pdev); | |
9967 | ||
9968 | return 0; | |
9969 | } | |
9970 | ||
9971 | static int niu_resume(struct pci_dev *pdev) | |
9972 | { | |
9973 | struct net_device *dev = pci_get_drvdata(pdev); | |
9974 | struct niu *np = netdev_priv(dev); | |
9975 | unsigned long flags; | |
9976 | int err; | |
9977 | ||
9978 | if (!netif_running(dev)) | |
9979 | return 0; | |
9980 | ||
9981 | pci_restore_state(pdev); | |
9982 | ||
9983 | netif_device_attach(dev); | |
9984 | ||
9985 | spin_lock_irqsave(&np->lock, flags); | |
9986 | ||
9987 | err = niu_init_hw(np); | |
9988 | if (!err) { | |
9989 | np->timer.expires = jiffies + HZ; | |
9990 | add_timer(&np->timer); | |
9991 | niu_netif_start(np); | |
9992 | } | |
9993 | ||
9994 | spin_unlock_irqrestore(&np->lock, flags); | |
9995 | ||
9996 | return err; | |
9997 | } | |
9998 | ||
9999 | static struct pci_driver niu_pci_driver = { | |
10000 | .name = DRV_MODULE_NAME, | |
10001 | .id_table = niu_pci_tbl, | |
10002 | .probe = niu_pci_init_one, | |
10003 | .remove = __devexit_p(niu_pci_remove_one), | |
10004 | .suspend = niu_suspend, | |
10005 | .resume = niu_resume, | |
10006 | }; | |
10007 | ||
10008 | #ifdef CONFIG_SPARC64 | |
10009 | static void *niu_phys_alloc_coherent(struct device *dev, size_t size, | |
10010 | u64 *dma_addr, gfp_t flag) | |
10011 | { | |
10012 | unsigned long order = get_order(size); | |
10013 | unsigned long page = __get_free_pages(flag, order); | |
10014 | ||
10015 | if (page == 0UL) | |
10016 | return NULL; | |
10017 | memset((char *)page, 0, PAGE_SIZE << order); | |
10018 | *dma_addr = __pa(page); | |
10019 | ||
10020 | return (void *) page; | |
10021 | } | |
10022 | ||
10023 | static void niu_phys_free_coherent(struct device *dev, size_t size, | |
10024 | void *cpu_addr, u64 handle) | |
10025 | { | |
10026 | unsigned long order = get_order(size); | |
10027 | ||
10028 | free_pages((unsigned long) cpu_addr, order); | |
10029 | } | |
10030 | ||
10031 | static u64 niu_phys_map_page(struct device *dev, struct page *page, | |
10032 | unsigned long offset, size_t size, | |
10033 | enum dma_data_direction direction) | |
10034 | { | |
10035 | return page_to_phys(page) + offset; | |
10036 | } | |
10037 | ||
10038 | static void niu_phys_unmap_page(struct device *dev, u64 dma_address, | |
10039 | size_t size, enum dma_data_direction direction) | |
10040 | { | |
10041 | /* Nothing to do. */ | |
10042 | } | |
10043 | ||
10044 | static u64 niu_phys_map_single(struct device *dev, void *cpu_addr, | |
10045 | size_t size, | |
10046 | enum dma_data_direction direction) | |
10047 | { | |
10048 | return __pa(cpu_addr); | |
10049 | } | |
10050 | ||
10051 | static void niu_phys_unmap_single(struct device *dev, u64 dma_address, | |
10052 | size_t size, | |
10053 | enum dma_data_direction direction) | |
10054 | { | |
10055 | /* Nothing to do. */ | |
10056 | } | |
10057 | ||
10058 | static const struct niu_ops niu_phys_ops = { | |
10059 | .alloc_coherent = niu_phys_alloc_coherent, | |
10060 | .free_coherent = niu_phys_free_coherent, | |
10061 | .map_page = niu_phys_map_page, | |
10062 | .unmap_page = niu_phys_unmap_page, | |
10063 | .map_single = niu_phys_map_single, | |
10064 | .unmap_single = niu_phys_unmap_single, | |
10065 | }; | |
10066 | ||
2dc11581 | 10067 | static int __devinit niu_of_probe(struct platform_device *op, |
a3138df9 DM |
10068 | const struct of_device_id *match) |
10069 | { | |
10070 | union niu_parent_id parent_id; | |
10071 | struct net_device *dev; | |
10072 | struct niu *np; | |
10073 | const u32 *reg; | |
10074 | int err; | |
10075 | ||
10076 | niu_driver_version(); | |
10077 | ||
61c7a080 | 10078 | reg = of_get_property(op->dev.of_node, "reg", NULL); |
a3138df9 | 10079 | if (!reg) { |
f10a1f2e | 10080 | dev_err(&op->dev, "%s: No 'reg' property, aborting\n", |
61c7a080 | 10081 | op->dev.of_node->full_name); |
a3138df9 DM |
10082 | return -ENODEV; |
10083 | } | |
10084 | ||
10085 | dev = niu_alloc_and_init(&op->dev, NULL, op, | |
10086 | &niu_phys_ops, reg[0] & 0x1); | |
10087 | if (!dev) { | |
10088 | err = -ENOMEM; | |
10089 | goto err_out; | |
10090 | } | |
10091 | np = netdev_priv(dev); | |
10092 | ||
10093 | memset(&parent_id, 0, sizeof(parent_id)); | |
61c7a080 | 10094 | parent_id.of = of_get_parent(op->dev.of_node); |
a3138df9 DM |
10095 | |
10096 | np->parent = niu_get_parent(np, &parent_id, | |
10097 | PLAT_TYPE_NIU); | |
10098 | if (!np->parent) { | |
10099 | err = -ENOMEM; | |
10100 | goto err_out_free_dev; | |
10101 | } | |
10102 | ||
3cfa856d | 10103 | niu_set_basic_features(dev); |
a3138df9 DM |
10104 | |
10105 | np->regs = of_ioremap(&op->resource[1], 0, | |
6f0e0135 | 10106 | resource_size(&op->resource[1]), |
a3138df9 DM |
10107 | "niu regs"); |
10108 | if (!np->regs) { | |
f10a1f2e | 10109 | dev_err(&op->dev, "Cannot map device registers, aborting\n"); |
a3138df9 DM |
10110 | err = -ENOMEM; |
10111 | goto err_out_release_parent; | |
10112 | } | |
10113 | ||
10114 | np->vir_regs_1 = of_ioremap(&op->resource[2], 0, | |
6f0e0135 | 10115 | resource_size(&op->resource[2]), |
a3138df9 DM |
10116 | "niu vregs-1"); |
10117 | if (!np->vir_regs_1) { | |
f10a1f2e | 10118 | dev_err(&op->dev, "Cannot map device vir registers 1, aborting\n"); |
a3138df9 DM |
10119 | err = -ENOMEM; |
10120 | goto err_out_iounmap; | |
10121 | } | |
10122 | ||
10123 | np->vir_regs_2 = of_ioremap(&op->resource[3], 0, | |
6f0e0135 | 10124 | resource_size(&op->resource[3]), |
a3138df9 DM |
10125 | "niu vregs-2"); |
10126 | if (!np->vir_regs_2) { | |
f10a1f2e | 10127 | dev_err(&op->dev, "Cannot map device vir registers 2, aborting\n"); |
a3138df9 DM |
10128 | err = -ENOMEM; |
10129 | goto err_out_iounmap; | |
10130 | } | |
10131 | ||
10132 | niu_assign_netdev_ops(dev); | |
10133 | ||
10134 | err = niu_get_invariants(np); | |
10135 | if (err) { | |
10136 | if (err != -ENODEV) | |
f10a1f2e | 10137 | dev_err(&op->dev, "Problem fetching invariants of chip, aborting\n"); |
a3138df9 DM |
10138 | goto err_out_iounmap; |
10139 | } | |
10140 | ||
10141 | err = register_netdev(dev); | |
10142 | if (err) { | |
f10a1f2e | 10143 | dev_err(&op->dev, "Cannot register net device, aborting\n"); |
a3138df9 DM |
10144 | goto err_out_iounmap; |
10145 | } | |
10146 | ||
10147 | dev_set_drvdata(&op->dev, dev); | |
10148 | ||
10149 | niu_device_announce(np); | |
10150 | ||
10151 | return 0; | |
10152 | ||
10153 | err_out_iounmap: | |
10154 | if (np->vir_regs_1) { | |
10155 | of_iounmap(&op->resource[2], np->vir_regs_1, | |
6f0e0135 | 10156 | resource_size(&op->resource[2])); |
a3138df9 DM |
10157 | np->vir_regs_1 = NULL; |
10158 | } | |
10159 | ||
10160 | if (np->vir_regs_2) { | |
10161 | of_iounmap(&op->resource[3], np->vir_regs_2, | |
6f0e0135 | 10162 | resource_size(&op->resource[3])); |
a3138df9 DM |
10163 | np->vir_regs_2 = NULL; |
10164 | } | |
10165 | ||
10166 | if (np->regs) { | |
10167 | of_iounmap(&op->resource[1], np->regs, | |
6f0e0135 | 10168 | resource_size(&op->resource[1])); |
a3138df9 DM |
10169 | np->regs = NULL; |
10170 | } | |
10171 | ||
10172 | err_out_release_parent: | |
10173 | niu_put_parent(np); | |
10174 | ||
10175 | err_out_free_dev: | |
10176 | free_netdev(dev); | |
10177 | ||
10178 | err_out: | |
10179 | return err; | |
10180 | } | |
10181 | ||
2dc11581 | 10182 | static int __devexit niu_of_remove(struct platform_device *op) |
a3138df9 DM |
10183 | { |
10184 | struct net_device *dev = dev_get_drvdata(&op->dev); | |
10185 | ||
10186 | if (dev) { | |
10187 | struct niu *np = netdev_priv(dev); | |
10188 | ||
10189 | unregister_netdev(dev); | |
10190 | ||
10191 | if (np->vir_regs_1) { | |
10192 | of_iounmap(&op->resource[2], np->vir_regs_1, | |
6f0e0135 | 10193 | resource_size(&op->resource[2])); |
a3138df9 DM |
10194 | np->vir_regs_1 = NULL; |
10195 | } | |
10196 | ||
10197 | if (np->vir_regs_2) { | |
10198 | of_iounmap(&op->resource[3], np->vir_regs_2, | |
6f0e0135 | 10199 | resource_size(&op->resource[3])); |
a3138df9 DM |
10200 | np->vir_regs_2 = NULL; |
10201 | } | |
10202 | ||
10203 | if (np->regs) { | |
10204 | of_iounmap(&op->resource[1], np->regs, | |
6f0e0135 | 10205 | resource_size(&op->resource[1])); |
a3138df9 DM |
10206 | np->regs = NULL; |
10207 | } | |
10208 | ||
10209 | niu_ldg_free(np); | |
10210 | ||
10211 | niu_put_parent(np); | |
10212 | ||
10213 | free_netdev(dev); | |
10214 | dev_set_drvdata(&op->dev, NULL); | |
10215 | } | |
10216 | return 0; | |
10217 | } | |
10218 | ||
fd098316 | 10219 | static const struct of_device_id niu_match[] = { |
a3138df9 DM |
10220 | { |
10221 | .name = "network", | |
10222 | .compatible = "SUNW,niusl", | |
10223 | }, | |
10224 | {}, | |
10225 | }; | |
10226 | MODULE_DEVICE_TABLE(of, niu_match); | |
10227 | ||
10228 | static struct of_platform_driver niu_of_driver = { | |
4018294b GL |
10229 | .driver = { |
10230 | .name = "niu", | |
10231 | .owner = THIS_MODULE, | |
10232 | .of_match_table = niu_match, | |
10233 | }, | |
a3138df9 DM |
10234 | .probe = niu_of_probe, |
10235 | .remove = __devexit_p(niu_of_remove), | |
10236 | }; | |
10237 | ||
10238 | #endif /* CONFIG_SPARC64 */ | |
10239 | ||
10240 | static int __init niu_init(void) | |
10241 | { | |
10242 | int err = 0; | |
10243 | ||
81429973 | 10244 | BUILD_BUG_ON(PAGE_SIZE < 4 * 1024); |
a3138df9 DM |
10245 | |
10246 | niu_debug = netif_msg_init(debug, NIU_MSG_DEFAULT); | |
10247 | ||
10248 | #ifdef CONFIG_SPARC64 | |
1ab1d63a | 10249 | err = of_register_platform_driver(&niu_of_driver); |
a3138df9 DM |
10250 | #endif |
10251 | ||
10252 | if (!err) { | |
10253 | err = pci_register_driver(&niu_pci_driver); | |
10254 | #ifdef CONFIG_SPARC64 | |
10255 | if (err) | |
1ab1d63a | 10256 | of_unregister_platform_driver(&niu_of_driver); |
a3138df9 DM |
10257 | #endif |
10258 | } | |
10259 | ||
10260 | return err; | |
10261 | } | |
10262 | ||
10263 | static void __exit niu_exit(void) | |
10264 | { | |
10265 | pci_unregister_driver(&niu_pci_driver); | |
10266 | #ifdef CONFIG_SPARC64 | |
1ab1d63a | 10267 | of_unregister_platform_driver(&niu_of_driver); |
a3138df9 DM |
10268 | #endif |
10269 | } | |
10270 | ||
10271 | module_init(niu_init); | |
10272 | module_exit(niu_exit); |