Commit | Line | Data |
---|---|---|
4b8ac966 JP |
1 | /* |
2 | * drivers/net/ethernet/rocker/rocker.c - Rocker switch device driver | |
11ce2ba3 | 3 | * Copyright (c) 2014-2016 Jiri Pirko <jiri@mellanox.com> |
4b8ac966 JP |
4 | * Copyright (c) 2014 Scott Feldman <sfeldma@gmail.com> |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License, or | |
9 | * (at your option) any later version. | |
10 | */ | |
11 | ||
12 | #include <linux/kernel.h> | |
13 | #include <linux/module.h> | |
14 | #include <linux/pci.h> | |
15 | #include <linux/interrupt.h> | |
16 | #include <linux/sched.h> | |
17 | #include <linux/wait.h> | |
18 | #include <linux/spinlock.h> | |
4b8ac966 JP |
19 | #include <linux/sort.h> |
20 | #include <linux/random.h> | |
21 | #include <linux/netdevice.h> | |
4b8ac966 JP |
22 | #include <linux/skbuff.h> |
23 | #include <linux/socket.h> | |
24 | #include <linux/etherdevice.h> | |
25 | #include <linux/ethtool.h> | |
26 | #include <linux/if_ether.h> | |
27 | #include <linux/if_vlan.h> | |
6c707945 | 28 | #include <linux/if_bridge.h> |
9f6bbf7c | 29 | #include <linux/bitops.h> |
db19170b | 30 | #include <linux/ctype.h> |
4b8ac966 JP |
31 | #include <net/switchdev.h> |
32 | #include <net/rtnetlink.h> | |
c1beeef7 SF |
33 | #include <net/netevent.h> |
34 | #include <net/arp.h> | |
2f8e2c87 | 35 | #include <linux/io-64-nonatomic-lo-hi.h> |
4b8ac966 JP |
36 | #include <generated/utsrelease.h> |
37 | ||
0fe685f6 | 38 | #include "rocker_hw.h" |
de152192 JP |
39 | #include "rocker.h" |
40 | #include "rocker_tlv.h" | |
4b8ac966 JP |
41 | |
42 | static const char rocker_driver_name[] = "rocker"; | |
43 | ||
44 | static const struct pci_device_id rocker_pci_id_table[] = { | |
45 | {PCI_VDEVICE(REDHAT, PCI_DEVICE_ID_REDHAT_ROCKER), 0}, | |
46 | {0, } | |
47 | }; | |
48 | ||
4b8ac966 JP |
49 | struct rocker_wait { |
50 | wait_queue_head_t wait; | |
51 | bool done; | |
179f9a25 | 52 | bool nowait; |
4b8ac966 JP |
53 | }; |
54 | ||
55 | static void rocker_wait_reset(struct rocker_wait *wait) | |
56 | { | |
57 | wait->done = false; | |
179f9a25 | 58 | wait->nowait = false; |
4b8ac966 JP |
59 | } |
60 | ||
61 | static void rocker_wait_init(struct rocker_wait *wait) | |
62 | { | |
63 | init_waitqueue_head(&wait->wait); | |
64 | rocker_wait_reset(wait); | |
65 | } | |
66 | ||
ca0a5f2a | 67 | static struct rocker_wait *rocker_wait_create(void) |
4b8ac966 JP |
68 | { |
69 | struct rocker_wait *wait; | |
70 | ||
ca0a5f2a | 71 | wait = kzalloc(sizeof(*wait), GFP_KERNEL); |
4b8ac966 JP |
72 | if (!wait) |
73 | return NULL; | |
4b8ac966 JP |
74 | return wait; |
75 | } | |
76 | ||
ca0a5f2a | 77 | static void rocker_wait_destroy(struct rocker_wait *wait) |
4b8ac966 | 78 | { |
ca0a5f2a | 79 | kfree(wait); |
4b8ac966 JP |
80 | } |
81 | ||
82 | static bool rocker_wait_event_timeout(struct rocker_wait *wait, | |
83 | unsigned long timeout) | |
84 | { | |
85 | wait_event_timeout(wait->wait, wait->done, HZ / 10); | |
86 | if (!wait->done) | |
87 | return false; | |
88 | return true; | |
89 | } | |
90 | ||
91 | static void rocker_wait_wake_up(struct rocker_wait *wait) | |
92 | { | |
93 | wait->done = true; | |
94 | wake_up(&wait->wait); | |
95 | } | |
96 | ||
e5054643 | 97 | static u32 rocker_msix_vector(const struct rocker *rocker, unsigned int vector) |
4b8ac966 JP |
98 | { |
99 | return rocker->msix_entries[vector].vector; | |
100 | } | |
101 | ||
e5054643 | 102 | static u32 rocker_msix_tx_vector(const struct rocker_port *rocker_port) |
4b8ac966 JP |
103 | { |
104 | return rocker_msix_vector(rocker_port->rocker, | |
105 | ROCKER_MSIX_VEC_TX(rocker_port->port_number)); | |
106 | } | |
107 | ||
e5054643 | 108 | static u32 rocker_msix_rx_vector(const struct rocker_port *rocker_port) |
4b8ac966 JP |
109 | { |
110 | return rocker_msix_vector(rocker_port->rocker, | |
111 | ROCKER_MSIX_VEC_RX(rocker_port->port_number)); | |
112 | } | |
113 | ||
114 | #define rocker_write32(rocker, reg, val) \ | |
115 | writel((val), (rocker)->hw_addr + (ROCKER_ ## reg)) | |
116 | #define rocker_read32(rocker, reg) \ | |
117 | readl((rocker)->hw_addr + (ROCKER_ ## reg)) | |
118 | #define rocker_write64(rocker, reg, val) \ | |
119 | writeq((val), (rocker)->hw_addr + (ROCKER_ ## reg)) | |
120 | #define rocker_read64(rocker, reg) \ | |
121 | readq((rocker)->hw_addr + (ROCKER_ ## reg)) | |
122 | ||
123 | /***************************** | |
124 | * HW basic testing functions | |
125 | *****************************/ | |
126 | ||
e5054643 | 127 | static int rocker_reg_test(const struct rocker *rocker) |
4b8ac966 | 128 | { |
e5054643 | 129 | const struct pci_dev *pdev = rocker->pdev; |
4b8ac966 JP |
130 | u64 test_reg; |
131 | u64 rnd; | |
132 | ||
133 | rnd = prandom_u32(); | |
134 | rnd >>= 1; | |
135 | rocker_write32(rocker, TEST_REG, rnd); | |
136 | test_reg = rocker_read32(rocker, TEST_REG); | |
137 | if (test_reg != rnd * 2) { | |
138 | dev_err(&pdev->dev, "unexpected 32bit register value %08llx, expected %08llx\n", | |
139 | test_reg, rnd * 2); | |
140 | return -EIO; | |
141 | } | |
142 | ||
143 | rnd = prandom_u32(); | |
144 | rnd <<= 31; | |
145 | rnd |= prandom_u32(); | |
146 | rocker_write64(rocker, TEST_REG64, rnd); | |
147 | test_reg = rocker_read64(rocker, TEST_REG64); | |
148 | if (test_reg != rnd * 2) { | |
149 | dev_err(&pdev->dev, "unexpected 64bit register value %16llx, expected %16llx\n", | |
150 | test_reg, rnd * 2); | |
151 | return -EIO; | |
152 | } | |
153 | ||
154 | return 0; | |
155 | } | |
156 | ||
e5054643 SH |
157 | static int rocker_dma_test_one(const struct rocker *rocker, |
158 | struct rocker_wait *wait, u32 test_type, | |
159 | dma_addr_t dma_handle, const unsigned char *buf, | |
160 | const unsigned char *expect, size_t size) | |
4b8ac966 | 161 | { |
e5054643 | 162 | const struct pci_dev *pdev = rocker->pdev; |
4b8ac966 JP |
163 | int i; |
164 | ||
165 | rocker_wait_reset(wait); | |
166 | rocker_write32(rocker, TEST_DMA_CTRL, test_type); | |
167 | ||
168 | if (!rocker_wait_event_timeout(wait, HZ / 10)) { | |
169 | dev_err(&pdev->dev, "no interrupt received within a timeout\n"); | |
170 | return -EIO; | |
171 | } | |
172 | ||
173 | for (i = 0; i < size; i++) { | |
174 | if (buf[i] != expect[i]) { | |
175 | dev_err(&pdev->dev, "unexpected memory content %02x at byte %x\n, %02x expected", | |
176 | buf[i], i, expect[i]); | |
177 | return -EIO; | |
178 | } | |
179 | } | |
180 | return 0; | |
181 | } | |
182 | ||
183 | #define ROCKER_TEST_DMA_BUF_SIZE (PAGE_SIZE * 4) | |
184 | #define ROCKER_TEST_DMA_FILL_PATTERN 0x96 | |
185 | ||
e5054643 | 186 | static int rocker_dma_test_offset(const struct rocker *rocker, |
4b8ac966 JP |
187 | struct rocker_wait *wait, int offset) |
188 | { | |
189 | struct pci_dev *pdev = rocker->pdev; | |
190 | unsigned char *alloc; | |
191 | unsigned char *buf; | |
192 | unsigned char *expect; | |
193 | dma_addr_t dma_handle; | |
194 | int i; | |
195 | int err; | |
196 | ||
197 | alloc = kzalloc(ROCKER_TEST_DMA_BUF_SIZE * 2 + offset, | |
198 | GFP_KERNEL | GFP_DMA); | |
199 | if (!alloc) | |
200 | return -ENOMEM; | |
201 | buf = alloc + offset; | |
202 | expect = buf + ROCKER_TEST_DMA_BUF_SIZE; | |
203 | ||
204 | dma_handle = pci_map_single(pdev, buf, ROCKER_TEST_DMA_BUF_SIZE, | |
205 | PCI_DMA_BIDIRECTIONAL); | |
206 | if (pci_dma_mapping_error(pdev, dma_handle)) { | |
207 | err = -EIO; | |
208 | goto free_alloc; | |
209 | } | |
210 | ||
211 | rocker_write64(rocker, TEST_DMA_ADDR, dma_handle); | |
212 | rocker_write32(rocker, TEST_DMA_SIZE, ROCKER_TEST_DMA_BUF_SIZE); | |
213 | ||
214 | memset(expect, ROCKER_TEST_DMA_FILL_PATTERN, ROCKER_TEST_DMA_BUF_SIZE); | |
215 | err = rocker_dma_test_one(rocker, wait, ROCKER_TEST_DMA_CTRL_FILL, | |
216 | dma_handle, buf, expect, | |
217 | ROCKER_TEST_DMA_BUF_SIZE); | |
218 | if (err) | |
219 | goto unmap; | |
220 | ||
221 | memset(expect, 0, ROCKER_TEST_DMA_BUF_SIZE); | |
222 | err = rocker_dma_test_one(rocker, wait, ROCKER_TEST_DMA_CTRL_CLEAR, | |
223 | dma_handle, buf, expect, | |
224 | ROCKER_TEST_DMA_BUF_SIZE); | |
225 | if (err) | |
226 | goto unmap; | |
227 | ||
228 | prandom_bytes(buf, ROCKER_TEST_DMA_BUF_SIZE); | |
229 | for (i = 0; i < ROCKER_TEST_DMA_BUF_SIZE; i++) | |
230 | expect[i] = ~buf[i]; | |
231 | err = rocker_dma_test_one(rocker, wait, ROCKER_TEST_DMA_CTRL_INVERT, | |
232 | dma_handle, buf, expect, | |
233 | ROCKER_TEST_DMA_BUF_SIZE); | |
234 | if (err) | |
235 | goto unmap; | |
236 | ||
237 | unmap: | |
238 | pci_unmap_single(pdev, dma_handle, ROCKER_TEST_DMA_BUF_SIZE, | |
239 | PCI_DMA_BIDIRECTIONAL); | |
240 | free_alloc: | |
241 | kfree(alloc); | |
242 | ||
243 | return err; | |
244 | } | |
245 | ||
e5054643 SH |
246 | static int rocker_dma_test(const struct rocker *rocker, |
247 | struct rocker_wait *wait) | |
4b8ac966 JP |
248 | { |
249 | int i; | |
250 | int err; | |
251 | ||
252 | for (i = 0; i < 8; i++) { | |
253 | err = rocker_dma_test_offset(rocker, wait, i); | |
254 | if (err) | |
255 | return err; | |
256 | } | |
257 | return 0; | |
258 | } | |
259 | ||
260 | static irqreturn_t rocker_test_irq_handler(int irq, void *dev_id) | |
261 | { | |
262 | struct rocker_wait *wait = dev_id; | |
263 | ||
264 | rocker_wait_wake_up(wait); | |
265 | ||
266 | return IRQ_HANDLED; | |
267 | } | |
268 | ||
e5054643 | 269 | static int rocker_basic_hw_test(const struct rocker *rocker) |
4b8ac966 | 270 | { |
e5054643 | 271 | const struct pci_dev *pdev = rocker->pdev; |
4b8ac966 JP |
272 | struct rocker_wait wait; |
273 | int err; | |
274 | ||
275 | err = rocker_reg_test(rocker); | |
276 | if (err) { | |
277 | dev_err(&pdev->dev, "reg test failed\n"); | |
278 | return err; | |
279 | } | |
280 | ||
281 | err = request_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_TEST), | |
282 | rocker_test_irq_handler, 0, | |
283 | rocker_driver_name, &wait); | |
284 | if (err) { | |
285 | dev_err(&pdev->dev, "cannot assign test irq\n"); | |
286 | return err; | |
287 | } | |
288 | ||
289 | rocker_wait_init(&wait); | |
290 | rocker_write32(rocker, TEST_IRQ, ROCKER_MSIX_VEC_TEST); | |
291 | ||
292 | if (!rocker_wait_event_timeout(&wait, HZ / 10)) { | |
293 | dev_err(&pdev->dev, "no interrupt received within a timeout\n"); | |
294 | err = -EIO; | |
295 | goto free_irq; | |
296 | } | |
297 | ||
298 | err = rocker_dma_test(rocker, &wait); | |
299 | if (err) | |
300 | dev_err(&pdev->dev, "dma test failed\n"); | |
301 | ||
302 | free_irq: | |
303 | free_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_TEST), &wait); | |
304 | return err; | |
305 | } | |
306 | ||
4b8ac966 JP |
307 | /****************************************** |
308 | * DMA rings and descriptors manipulations | |
309 | ******************************************/ | |
310 | ||
311 | static u32 __pos_inc(u32 pos, size_t limit) | |
312 | { | |
313 | return ++pos == limit ? 0 : pos; | |
314 | } | |
315 | ||
e5054643 | 316 | static int rocker_desc_err(const struct rocker_desc_info *desc_info) |
4b8ac966 | 317 | { |
7eb344f8 SF |
318 | int err = desc_info->desc->comp_err & ~ROCKER_DMA_DESC_COMP_ERR_GEN; |
319 | ||
320 | switch (err) { | |
321 | case ROCKER_OK: | |
322 | return 0; | |
323 | case -ROCKER_ENOENT: | |
324 | return -ENOENT; | |
325 | case -ROCKER_ENXIO: | |
326 | return -ENXIO; | |
327 | case -ROCKER_ENOMEM: | |
328 | return -ENOMEM; | |
329 | case -ROCKER_EEXIST: | |
330 | return -EEXIST; | |
331 | case -ROCKER_EINVAL: | |
332 | return -EINVAL; | |
333 | case -ROCKER_EMSGSIZE: | |
334 | return -EMSGSIZE; | |
335 | case -ROCKER_ENOTSUP: | |
336 | return -EOPNOTSUPP; | |
337 | case -ROCKER_ENOBUFS: | |
338 | return -ENOBUFS; | |
339 | } | |
340 | ||
341 | return -EINVAL; | |
4b8ac966 JP |
342 | } |
343 | ||
e5054643 | 344 | static void rocker_desc_gen_clear(const struct rocker_desc_info *desc_info) |
4b8ac966 JP |
345 | { |
346 | desc_info->desc->comp_err &= ~ROCKER_DMA_DESC_COMP_ERR_GEN; | |
347 | } | |
348 | ||
e5054643 | 349 | static bool rocker_desc_gen(const struct rocker_desc_info *desc_info) |
4b8ac966 JP |
350 | { |
351 | u32 comp_err = desc_info->desc->comp_err; | |
352 | ||
353 | return comp_err & ROCKER_DMA_DESC_COMP_ERR_GEN ? true : false; | |
354 | } | |
355 | ||
11ce2ba3 JP |
356 | static void * |
357 | rocker_desc_cookie_ptr_get(const struct rocker_desc_info *desc_info) | |
4b8ac966 | 358 | { |
adedf37b | 359 | return (void *)(uintptr_t)desc_info->desc->cookie; |
4b8ac966 JP |
360 | } |
361 | ||
e5054643 | 362 | static void rocker_desc_cookie_ptr_set(const struct rocker_desc_info *desc_info, |
4b8ac966 JP |
363 | void *ptr) |
364 | { | |
adedf37b | 365 | desc_info->desc->cookie = (uintptr_t) ptr; |
4b8ac966 JP |
366 | } |
367 | ||
368 | static struct rocker_desc_info * | |
e5054643 | 369 | rocker_desc_head_get(const struct rocker_dma_ring_info *info) |
4b8ac966 JP |
370 | { |
371 | static struct rocker_desc_info *desc_info; | |
372 | u32 head = __pos_inc(info->head, info->size); | |
373 | ||
374 | desc_info = &info->desc_info[info->head]; | |
375 | if (head == info->tail) | |
376 | return NULL; /* ring full */ | |
377 | desc_info->tlv_size = 0; | |
378 | return desc_info; | |
379 | } | |
380 | ||
e5054643 | 381 | static void rocker_desc_commit(const struct rocker_desc_info *desc_info) |
4b8ac966 JP |
382 | { |
383 | desc_info->desc->buf_size = desc_info->data_size; | |
384 | desc_info->desc->tlv_size = desc_info->tlv_size; | |
385 | } | |
386 | ||
e5054643 | 387 | static void rocker_desc_head_set(const struct rocker *rocker, |
4b8ac966 | 388 | struct rocker_dma_ring_info *info, |
e5054643 | 389 | const struct rocker_desc_info *desc_info) |
4b8ac966 JP |
390 | { |
391 | u32 head = __pos_inc(info->head, info->size); | |
392 | ||
393 | BUG_ON(head == info->tail); | |
394 | rocker_desc_commit(desc_info); | |
395 | info->head = head; | |
396 | rocker_write32(rocker, DMA_DESC_HEAD(info->type), head); | |
397 | } | |
398 | ||
399 | static struct rocker_desc_info * | |
400 | rocker_desc_tail_get(struct rocker_dma_ring_info *info) | |
401 | { | |
402 | static struct rocker_desc_info *desc_info; | |
403 | ||
404 | if (info->tail == info->head) | |
405 | return NULL; /* nothing to be done between head and tail */ | |
406 | desc_info = &info->desc_info[info->tail]; | |
407 | if (!rocker_desc_gen(desc_info)) | |
408 | return NULL; /* gen bit not set, desc is not ready yet */ | |
409 | info->tail = __pos_inc(info->tail, info->size); | |
410 | desc_info->tlv_size = desc_info->desc->tlv_size; | |
411 | return desc_info; | |
412 | } | |
413 | ||
e5054643 SH |
414 | static void rocker_dma_ring_credits_set(const struct rocker *rocker, |
415 | const struct rocker_dma_ring_info *info, | |
4b8ac966 JP |
416 | u32 credits) |
417 | { | |
418 | if (credits) | |
419 | rocker_write32(rocker, DMA_DESC_CREDITS(info->type), credits); | |
420 | } | |
421 | ||
422 | static unsigned long rocker_dma_ring_size_fix(size_t size) | |
423 | { | |
424 | return max(ROCKER_DMA_SIZE_MIN, | |
425 | min(roundup_pow_of_two(size), ROCKER_DMA_SIZE_MAX)); | |
426 | } | |
427 | ||
e5054643 | 428 | static int rocker_dma_ring_create(const struct rocker *rocker, |
4b8ac966 JP |
429 | unsigned int type, |
430 | size_t size, | |
431 | struct rocker_dma_ring_info *info) | |
432 | { | |
433 | int i; | |
434 | ||
435 | BUG_ON(size != rocker_dma_ring_size_fix(size)); | |
436 | info->size = size; | |
437 | info->type = type; | |
438 | info->head = 0; | |
439 | info->tail = 0; | |
440 | info->desc_info = kcalloc(info->size, sizeof(*info->desc_info), | |
441 | GFP_KERNEL); | |
442 | if (!info->desc_info) | |
443 | return -ENOMEM; | |
444 | ||
445 | info->desc = pci_alloc_consistent(rocker->pdev, | |
446 | info->size * sizeof(*info->desc), | |
447 | &info->mapaddr); | |
448 | if (!info->desc) { | |
449 | kfree(info->desc_info); | |
450 | return -ENOMEM; | |
451 | } | |
452 | ||
453 | for (i = 0; i < info->size; i++) | |
454 | info->desc_info[i].desc = &info->desc[i]; | |
455 | ||
456 | rocker_write32(rocker, DMA_DESC_CTRL(info->type), | |
457 | ROCKER_DMA_DESC_CTRL_RESET); | |
458 | rocker_write64(rocker, DMA_DESC_ADDR(info->type), info->mapaddr); | |
459 | rocker_write32(rocker, DMA_DESC_SIZE(info->type), info->size); | |
460 | ||
461 | return 0; | |
462 | } | |
463 | ||
e5054643 SH |
464 | static void rocker_dma_ring_destroy(const struct rocker *rocker, |
465 | const struct rocker_dma_ring_info *info) | |
4b8ac966 JP |
466 | { |
467 | rocker_write64(rocker, DMA_DESC_ADDR(info->type), 0); | |
468 | ||
469 | pci_free_consistent(rocker->pdev, | |
470 | info->size * sizeof(struct rocker_desc), | |
471 | info->desc, info->mapaddr); | |
472 | kfree(info->desc_info); | |
473 | } | |
474 | ||
e5054643 | 475 | static void rocker_dma_ring_pass_to_producer(const struct rocker *rocker, |
4b8ac966 JP |
476 | struct rocker_dma_ring_info *info) |
477 | { | |
478 | int i; | |
479 | ||
480 | BUG_ON(info->head || info->tail); | |
481 | ||
482 | /* When ring is consumer, we need to advance head for each desc. | |
483 | * That tells hw that the desc is ready to be used by it. | |
484 | */ | |
485 | for (i = 0; i < info->size - 1; i++) | |
486 | rocker_desc_head_set(rocker, info, &info->desc_info[i]); | |
487 | rocker_desc_commit(&info->desc_info[i]); | |
488 | } | |
489 | ||
e5054643 SH |
490 | static int rocker_dma_ring_bufs_alloc(const struct rocker *rocker, |
491 | const struct rocker_dma_ring_info *info, | |
4b8ac966 JP |
492 | int direction, size_t buf_size) |
493 | { | |
494 | struct pci_dev *pdev = rocker->pdev; | |
495 | int i; | |
496 | int err; | |
497 | ||
498 | for (i = 0; i < info->size; i++) { | |
499 | struct rocker_desc_info *desc_info = &info->desc_info[i]; | |
500 | struct rocker_desc *desc = &info->desc[i]; | |
501 | dma_addr_t dma_handle; | |
502 | char *buf; | |
503 | ||
504 | buf = kzalloc(buf_size, GFP_KERNEL | GFP_DMA); | |
505 | if (!buf) { | |
506 | err = -ENOMEM; | |
507 | goto rollback; | |
508 | } | |
509 | ||
510 | dma_handle = pci_map_single(pdev, buf, buf_size, direction); | |
511 | if (pci_dma_mapping_error(pdev, dma_handle)) { | |
512 | kfree(buf); | |
513 | err = -EIO; | |
514 | goto rollback; | |
515 | } | |
516 | ||
517 | desc_info->data = buf; | |
518 | desc_info->data_size = buf_size; | |
519 | dma_unmap_addr_set(desc_info, mapaddr, dma_handle); | |
520 | ||
521 | desc->buf_addr = dma_handle; | |
522 | desc->buf_size = buf_size; | |
523 | } | |
524 | return 0; | |
525 | ||
526 | rollback: | |
527 | for (i--; i >= 0; i--) { | |
e5054643 | 528 | const struct rocker_desc_info *desc_info = &info->desc_info[i]; |
4b8ac966 JP |
529 | |
530 | pci_unmap_single(pdev, dma_unmap_addr(desc_info, mapaddr), | |
531 | desc_info->data_size, direction); | |
532 | kfree(desc_info->data); | |
533 | } | |
534 | return err; | |
535 | } | |
536 | ||
e5054643 SH |
537 | static void rocker_dma_ring_bufs_free(const struct rocker *rocker, |
538 | const struct rocker_dma_ring_info *info, | |
4b8ac966 JP |
539 | int direction) |
540 | { | |
541 | struct pci_dev *pdev = rocker->pdev; | |
542 | int i; | |
543 | ||
544 | for (i = 0; i < info->size; i++) { | |
e5054643 | 545 | const struct rocker_desc_info *desc_info = &info->desc_info[i]; |
4b8ac966 JP |
546 | struct rocker_desc *desc = &info->desc[i]; |
547 | ||
548 | desc->buf_addr = 0; | |
549 | desc->buf_size = 0; | |
550 | pci_unmap_single(pdev, dma_unmap_addr(desc_info, mapaddr), | |
551 | desc_info->data_size, direction); | |
552 | kfree(desc_info->data); | |
553 | } | |
554 | } | |
555 | ||
ca0a5f2a JP |
556 | static int rocker_dma_cmd_ring_wait_alloc(struct rocker_desc_info *desc_info) |
557 | { | |
558 | struct rocker_wait *wait; | |
559 | ||
560 | wait = rocker_wait_create(); | |
561 | if (!wait) | |
562 | return -ENOMEM; | |
563 | rocker_desc_cookie_ptr_set(desc_info, wait); | |
564 | return 0; | |
565 | } | |
566 | ||
567 | static void | |
568 | rocker_dma_cmd_ring_wait_free(const struct rocker_desc_info *desc_info) | |
569 | { | |
570 | struct rocker_wait *wait = rocker_desc_cookie_ptr_get(desc_info); | |
571 | ||
572 | rocker_wait_destroy(wait); | |
573 | } | |
574 | ||
575 | static int rocker_dma_cmd_ring_waits_alloc(const struct rocker *rocker) | |
576 | { | |
577 | const struct rocker_dma_ring_info *cmd_ring = &rocker->cmd_ring; | |
578 | int i; | |
579 | int err; | |
580 | ||
581 | for (i = 0; i < cmd_ring->size; i++) { | |
582 | err = rocker_dma_cmd_ring_wait_alloc(&cmd_ring->desc_info[i]); | |
583 | if (err) | |
584 | goto rollback; | |
585 | } | |
586 | return 0; | |
587 | ||
588 | rollback: | |
589 | for (i--; i >= 0; i--) | |
590 | rocker_dma_cmd_ring_wait_free(&cmd_ring->desc_info[i]); | |
591 | return err; | |
592 | } | |
593 | ||
594 | static void rocker_dma_cmd_ring_waits_free(const struct rocker *rocker) | |
595 | { | |
596 | const struct rocker_dma_ring_info *cmd_ring = &rocker->cmd_ring; | |
597 | int i; | |
598 | ||
599 | for (i = 0; i < cmd_ring->size; i++) | |
600 | rocker_dma_cmd_ring_wait_free(&cmd_ring->desc_info[i]); | |
601 | } | |
602 | ||
4b8ac966 JP |
603 | static int rocker_dma_rings_init(struct rocker *rocker) |
604 | { | |
e5054643 | 605 | const struct pci_dev *pdev = rocker->pdev; |
4b8ac966 JP |
606 | int err; |
607 | ||
608 | err = rocker_dma_ring_create(rocker, ROCKER_DMA_CMD, | |
609 | ROCKER_DMA_CMD_DEFAULT_SIZE, | |
610 | &rocker->cmd_ring); | |
611 | if (err) { | |
612 | dev_err(&pdev->dev, "failed to create command dma ring\n"); | |
613 | return err; | |
614 | } | |
615 | ||
616 | spin_lock_init(&rocker->cmd_ring_lock); | |
617 | ||
618 | err = rocker_dma_ring_bufs_alloc(rocker, &rocker->cmd_ring, | |
619 | PCI_DMA_BIDIRECTIONAL, PAGE_SIZE); | |
620 | if (err) { | |
621 | dev_err(&pdev->dev, "failed to alloc command dma ring buffers\n"); | |
622 | goto err_dma_cmd_ring_bufs_alloc; | |
623 | } | |
624 | ||
ca0a5f2a JP |
625 | err = rocker_dma_cmd_ring_waits_alloc(rocker); |
626 | if (err) { | |
627 | dev_err(&pdev->dev, "failed to alloc command dma ring waits\n"); | |
628 | goto err_dma_cmd_ring_waits_alloc; | |
629 | } | |
630 | ||
4b8ac966 JP |
631 | err = rocker_dma_ring_create(rocker, ROCKER_DMA_EVENT, |
632 | ROCKER_DMA_EVENT_DEFAULT_SIZE, | |
633 | &rocker->event_ring); | |
634 | if (err) { | |
635 | dev_err(&pdev->dev, "failed to create event dma ring\n"); | |
636 | goto err_dma_event_ring_create; | |
637 | } | |
638 | ||
639 | err = rocker_dma_ring_bufs_alloc(rocker, &rocker->event_ring, | |
640 | PCI_DMA_FROMDEVICE, PAGE_SIZE); | |
641 | if (err) { | |
642 | dev_err(&pdev->dev, "failed to alloc event dma ring buffers\n"); | |
643 | goto err_dma_event_ring_bufs_alloc; | |
644 | } | |
645 | rocker_dma_ring_pass_to_producer(rocker, &rocker->event_ring); | |
646 | return 0; | |
647 | ||
648 | err_dma_event_ring_bufs_alloc: | |
649 | rocker_dma_ring_destroy(rocker, &rocker->event_ring); | |
650 | err_dma_event_ring_create: | |
651 | rocker_dma_ring_bufs_free(rocker, &rocker->cmd_ring, | |
652 | PCI_DMA_BIDIRECTIONAL); | |
ca0a5f2a JP |
653 | err_dma_cmd_ring_waits_alloc: |
654 | rocker_dma_cmd_ring_waits_free(rocker); | |
4b8ac966 JP |
655 | err_dma_cmd_ring_bufs_alloc: |
656 | rocker_dma_ring_destroy(rocker, &rocker->cmd_ring); | |
657 | return err; | |
658 | } | |
659 | ||
660 | static void rocker_dma_rings_fini(struct rocker *rocker) | |
661 | { | |
662 | rocker_dma_ring_bufs_free(rocker, &rocker->event_ring, | |
663 | PCI_DMA_BIDIRECTIONAL); | |
664 | rocker_dma_ring_destroy(rocker, &rocker->event_ring); | |
ca0a5f2a | 665 | rocker_dma_cmd_ring_waits_free(rocker); |
4b8ac966 JP |
666 | rocker_dma_ring_bufs_free(rocker, &rocker->cmd_ring, |
667 | PCI_DMA_BIDIRECTIONAL); | |
668 | rocker_dma_ring_destroy(rocker, &rocker->cmd_ring); | |
669 | } | |
670 | ||
534ba6a8 | 671 | static int rocker_dma_rx_ring_skb_map(const struct rocker_port *rocker_port, |
4b8ac966 JP |
672 | struct rocker_desc_info *desc_info, |
673 | struct sk_buff *skb, size_t buf_len) | |
674 | { | |
534ba6a8 | 675 | const struct rocker *rocker = rocker_port->rocker; |
4b8ac966 JP |
676 | struct pci_dev *pdev = rocker->pdev; |
677 | dma_addr_t dma_handle; | |
678 | ||
679 | dma_handle = pci_map_single(pdev, skb->data, buf_len, | |
680 | PCI_DMA_FROMDEVICE); | |
681 | if (pci_dma_mapping_error(pdev, dma_handle)) | |
682 | return -EIO; | |
683 | if (rocker_tlv_put_u64(desc_info, ROCKER_TLV_RX_FRAG_ADDR, dma_handle)) | |
684 | goto tlv_put_failure; | |
685 | if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_RX_FRAG_MAX_LEN, buf_len)) | |
686 | goto tlv_put_failure; | |
687 | return 0; | |
688 | ||
689 | tlv_put_failure: | |
690 | pci_unmap_single(pdev, dma_handle, buf_len, PCI_DMA_FROMDEVICE); | |
691 | desc_info->tlv_size = 0; | |
692 | return -EMSGSIZE; | |
693 | } | |
694 | ||
e5054643 | 695 | static size_t rocker_port_rx_buf_len(const struct rocker_port *rocker_port) |
4b8ac966 JP |
696 | { |
697 | return rocker_port->dev->mtu + ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN; | |
698 | } | |
699 | ||
534ba6a8 | 700 | static int rocker_dma_rx_ring_skb_alloc(const struct rocker_port *rocker_port, |
4b8ac966 JP |
701 | struct rocker_desc_info *desc_info) |
702 | { | |
703 | struct net_device *dev = rocker_port->dev; | |
704 | struct sk_buff *skb; | |
705 | size_t buf_len = rocker_port_rx_buf_len(rocker_port); | |
706 | int err; | |
707 | ||
708 | /* Ensure that hw will see tlv_size zero in case of an error. | |
709 | * That tells hw to use another descriptor. | |
710 | */ | |
711 | rocker_desc_cookie_ptr_set(desc_info, NULL); | |
712 | desc_info->tlv_size = 0; | |
713 | ||
714 | skb = netdev_alloc_skb_ip_align(dev, buf_len); | |
715 | if (!skb) | |
716 | return -ENOMEM; | |
534ba6a8 | 717 | err = rocker_dma_rx_ring_skb_map(rocker_port, desc_info, skb, buf_len); |
4b8ac966 JP |
718 | if (err) { |
719 | dev_kfree_skb_any(skb); | |
720 | return err; | |
721 | } | |
722 | rocker_desc_cookie_ptr_set(desc_info, skb); | |
723 | return 0; | |
724 | } | |
725 | ||
e5054643 SH |
726 | static void rocker_dma_rx_ring_skb_unmap(const struct rocker *rocker, |
727 | const struct rocker_tlv **attrs) | |
4b8ac966 JP |
728 | { |
729 | struct pci_dev *pdev = rocker->pdev; | |
730 | dma_addr_t dma_handle; | |
731 | size_t len; | |
732 | ||
733 | if (!attrs[ROCKER_TLV_RX_FRAG_ADDR] || | |
734 | !attrs[ROCKER_TLV_RX_FRAG_MAX_LEN]) | |
735 | return; | |
736 | dma_handle = rocker_tlv_get_u64(attrs[ROCKER_TLV_RX_FRAG_ADDR]); | |
737 | len = rocker_tlv_get_u16(attrs[ROCKER_TLV_RX_FRAG_MAX_LEN]); | |
738 | pci_unmap_single(pdev, dma_handle, len, PCI_DMA_FROMDEVICE); | |
739 | } | |
740 | ||
e5054643 SH |
741 | static void rocker_dma_rx_ring_skb_free(const struct rocker *rocker, |
742 | const struct rocker_desc_info *desc_info) | |
4b8ac966 | 743 | { |
e5054643 | 744 | const struct rocker_tlv *attrs[ROCKER_TLV_RX_MAX + 1]; |
4b8ac966 JP |
745 | struct sk_buff *skb = rocker_desc_cookie_ptr_get(desc_info); |
746 | ||
747 | if (!skb) | |
748 | return; | |
749 | rocker_tlv_parse_desc(attrs, ROCKER_TLV_RX_MAX, desc_info); | |
750 | rocker_dma_rx_ring_skb_unmap(rocker, attrs); | |
751 | dev_kfree_skb_any(skb); | |
752 | } | |
753 | ||
534ba6a8 | 754 | static int rocker_dma_rx_ring_skbs_alloc(const struct rocker_port *rocker_port) |
4b8ac966 | 755 | { |
e5054643 | 756 | const struct rocker_dma_ring_info *rx_ring = &rocker_port->rx_ring; |
534ba6a8 | 757 | const struct rocker *rocker = rocker_port->rocker; |
4b8ac966 JP |
758 | int i; |
759 | int err; | |
760 | ||
761 | for (i = 0; i < rx_ring->size; i++) { | |
534ba6a8 | 762 | err = rocker_dma_rx_ring_skb_alloc(rocker_port, |
4b8ac966 JP |
763 | &rx_ring->desc_info[i]); |
764 | if (err) | |
765 | goto rollback; | |
766 | } | |
767 | return 0; | |
768 | ||
769 | rollback: | |
770 | for (i--; i >= 0; i--) | |
771 | rocker_dma_rx_ring_skb_free(rocker, &rx_ring->desc_info[i]); | |
772 | return err; | |
773 | } | |
774 | ||
534ba6a8 | 775 | static void rocker_dma_rx_ring_skbs_free(const struct rocker_port *rocker_port) |
4b8ac966 | 776 | { |
e5054643 | 777 | const struct rocker_dma_ring_info *rx_ring = &rocker_port->rx_ring; |
534ba6a8 | 778 | const struct rocker *rocker = rocker_port->rocker; |
4b8ac966 JP |
779 | int i; |
780 | ||
781 | for (i = 0; i < rx_ring->size; i++) | |
782 | rocker_dma_rx_ring_skb_free(rocker, &rx_ring->desc_info[i]); | |
783 | } | |
784 | ||
785 | static int rocker_port_dma_rings_init(struct rocker_port *rocker_port) | |
786 | { | |
787 | struct rocker *rocker = rocker_port->rocker; | |
788 | int err; | |
789 | ||
790 | err = rocker_dma_ring_create(rocker, | |
791 | ROCKER_DMA_TX(rocker_port->port_number), | |
792 | ROCKER_DMA_TX_DEFAULT_SIZE, | |
793 | &rocker_port->tx_ring); | |
794 | if (err) { | |
795 | netdev_err(rocker_port->dev, "failed to create tx dma ring\n"); | |
796 | return err; | |
797 | } | |
798 | ||
799 | err = rocker_dma_ring_bufs_alloc(rocker, &rocker_port->tx_ring, | |
800 | PCI_DMA_TODEVICE, | |
801 | ROCKER_DMA_TX_DESC_SIZE); | |
802 | if (err) { | |
803 | netdev_err(rocker_port->dev, "failed to alloc tx dma ring buffers\n"); | |
804 | goto err_dma_tx_ring_bufs_alloc; | |
805 | } | |
806 | ||
807 | err = rocker_dma_ring_create(rocker, | |
808 | ROCKER_DMA_RX(rocker_port->port_number), | |
809 | ROCKER_DMA_RX_DEFAULT_SIZE, | |
810 | &rocker_port->rx_ring); | |
811 | if (err) { | |
812 | netdev_err(rocker_port->dev, "failed to create rx dma ring\n"); | |
813 | goto err_dma_rx_ring_create; | |
814 | } | |
815 | ||
816 | err = rocker_dma_ring_bufs_alloc(rocker, &rocker_port->rx_ring, | |
817 | PCI_DMA_BIDIRECTIONAL, | |
818 | ROCKER_DMA_RX_DESC_SIZE); | |
819 | if (err) { | |
820 | netdev_err(rocker_port->dev, "failed to alloc rx dma ring buffers\n"); | |
821 | goto err_dma_rx_ring_bufs_alloc; | |
822 | } | |
823 | ||
534ba6a8 | 824 | err = rocker_dma_rx_ring_skbs_alloc(rocker_port); |
4b8ac966 JP |
825 | if (err) { |
826 | netdev_err(rocker_port->dev, "failed to alloc rx dma ring skbs\n"); | |
827 | goto err_dma_rx_ring_skbs_alloc; | |
828 | } | |
829 | rocker_dma_ring_pass_to_producer(rocker, &rocker_port->rx_ring); | |
830 | ||
831 | return 0; | |
832 | ||
833 | err_dma_rx_ring_skbs_alloc: | |
834 | rocker_dma_ring_bufs_free(rocker, &rocker_port->rx_ring, | |
835 | PCI_DMA_BIDIRECTIONAL); | |
836 | err_dma_rx_ring_bufs_alloc: | |
837 | rocker_dma_ring_destroy(rocker, &rocker_port->rx_ring); | |
838 | err_dma_rx_ring_create: | |
839 | rocker_dma_ring_bufs_free(rocker, &rocker_port->tx_ring, | |
840 | PCI_DMA_TODEVICE); | |
841 | err_dma_tx_ring_bufs_alloc: | |
842 | rocker_dma_ring_destroy(rocker, &rocker_port->tx_ring); | |
843 | return err; | |
844 | } | |
845 | ||
846 | static void rocker_port_dma_rings_fini(struct rocker_port *rocker_port) | |
847 | { | |
848 | struct rocker *rocker = rocker_port->rocker; | |
849 | ||
534ba6a8 | 850 | rocker_dma_rx_ring_skbs_free(rocker_port); |
4b8ac966 JP |
851 | rocker_dma_ring_bufs_free(rocker, &rocker_port->rx_ring, |
852 | PCI_DMA_BIDIRECTIONAL); | |
853 | rocker_dma_ring_destroy(rocker, &rocker_port->rx_ring); | |
854 | rocker_dma_ring_bufs_free(rocker, &rocker_port->tx_ring, | |
855 | PCI_DMA_TODEVICE); | |
856 | rocker_dma_ring_destroy(rocker, &rocker_port->tx_ring); | |
857 | } | |
858 | ||
e5054643 SH |
859 | static void rocker_port_set_enable(const struct rocker_port *rocker_port, |
860 | bool enable) | |
4b8ac966 JP |
861 | { |
862 | u64 val = rocker_read64(rocker_port->rocker, PORT_PHYS_ENABLE); | |
863 | ||
864 | if (enable) | |
71a83a6d | 865 | val |= 1ULL << rocker_port->pport; |
4b8ac966 | 866 | else |
71a83a6d | 867 | val &= ~(1ULL << rocker_port->pport); |
4b8ac966 JP |
868 | rocker_write64(rocker_port->rocker, PORT_PHYS_ENABLE, val); |
869 | } | |
870 | ||
871 | /******************************** | |
872 | * Interrupt handler and helpers | |
873 | ********************************/ | |
874 | ||
875 | static irqreturn_t rocker_cmd_irq_handler(int irq, void *dev_id) | |
876 | { | |
877 | struct rocker *rocker = dev_id; | |
e5054643 | 878 | const struct rocker_desc_info *desc_info; |
4b8ac966 JP |
879 | struct rocker_wait *wait; |
880 | u32 credits = 0; | |
881 | ||
882 | spin_lock(&rocker->cmd_ring_lock); | |
883 | while ((desc_info = rocker_desc_tail_get(&rocker->cmd_ring))) { | |
884 | wait = rocker_desc_cookie_ptr_get(desc_info); | |
179f9a25 SF |
885 | if (wait->nowait) { |
886 | rocker_desc_gen_clear(desc_info); | |
179f9a25 SF |
887 | } else { |
888 | rocker_wait_wake_up(wait); | |
889 | } | |
4b8ac966 JP |
890 | credits++; |
891 | } | |
892 | spin_unlock(&rocker->cmd_ring_lock); | |
893 | rocker_dma_ring_credits_set(rocker, &rocker->cmd_ring, credits); | |
894 | ||
895 | return IRQ_HANDLED; | |
896 | } | |
897 | ||
e5054643 | 898 | static void rocker_port_link_up(const struct rocker_port *rocker_port) |
4b8ac966 JP |
899 | { |
900 | netif_carrier_on(rocker_port->dev); | |
901 | netdev_info(rocker_port->dev, "Link is up\n"); | |
902 | } | |
903 | ||
e5054643 | 904 | static void rocker_port_link_down(const struct rocker_port *rocker_port) |
4b8ac966 JP |
905 | { |
906 | netif_carrier_off(rocker_port->dev); | |
907 | netdev_info(rocker_port->dev, "Link is down\n"); | |
908 | } | |
909 | ||
e5054643 | 910 | static int rocker_event_link_change(const struct rocker *rocker, |
4b8ac966 JP |
911 | const struct rocker_tlv *info) |
912 | { | |
e5054643 | 913 | const struct rocker_tlv *attrs[ROCKER_TLV_EVENT_LINK_CHANGED_MAX + 1]; |
4b8ac966 JP |
914 | unsigned int port_number; |
915 | bool link_up; | |
916 | struct rocker_port *rocker_port; | |
917 | ||
918 | rocker_tlv_parse_nested(attrs, ROCKER_TLV_EVENT_LINK_CHANGED_MAX, info); | |
4a6bb6d3 | 919 | if (!attrs[ROCKER_TLV_EVENT_LINK_CHANGED_PPORT] || |
4b8ac966 JP |
920 | !attrs[ROCKER_TLV_EVENT_LINK_CHANGED_LINKUP]) |
921 | return -EIO; | |
922 | port_number = | |
4a6bb6d3 | 923 | rocker_tlv_get_u32(attrs[ROCKER_TLV_EVENT_LINK_CHANGED_PPORT]) - 1; |
4b8ac966 JP |
924 | link_up = rocker_tlv_get_u8(attrs[ROCKER_TLV_EVENT_LINK_CHANGED_LINKUP]); |
925 | ||
926 | if (port_number >= rocker->port_count) | |
927 | return -EINVAL; | |
928 | ||
929 | rocker_port = rocker->ports[port_number]; | |
930 | if (netif_carrier_ok(rocker_port->dev) != link_up) { | |
931 | if (link_up) | |
932 | rocker_port_link_up(rocker_port); | |
933 | else | |
934 | rocker_port_link_down(rocker_port); | |
935 | } | |
936 | ||
937 | return 0; | |
938 | } | |
939 | ||
e420114e JP |
940 | static int rocker_world_port_ev_mac_vlan_seen(struct rocker_port *rocker_port, |
941 | const unsigned char *addr, | |
942 | __be16 vlan_id); | |
6c707945 | 943 | |
e5054643 | 944 | static int rocker_event_mac_vlan_seen(const struct rocker *rocker, |
6c707945 SF |
945 | const struct rocker_tlv *info) |
946 | { | |
e5054643 | 947 | const struct rocker_tlv *attrs[ROCKER_TLV_EVENT_MAC_VLAN_MAX + 1]; |
6c707945 SF |
948 | unsigned int port_number; |
949 | struct rocker_port *rocker_port; | |
e5054643 | 950 | const unsigned char *addr; |
6c707945 SF |
951 | __be16 vlan_id; |
952 | ||
953 | rocker_tlv_parse_nested(attrs, ROCKER_TLV_EVENT_MAC_VLAN_MAX, info); | |
4a6bb6d3 | 954 | if (!attrs[ROCKER_TLV_EVENT_MAC_VLAN_PPORT] || |
6c707945 SF |
955 | !attrs[ROCKER_TLV_EVENT_MAC_VLAN_MAC] || |
956 | !attrs[ROCKER_TLV_EVENT_MAC_VLAN_VLAN_ID]) | |
957 | return -EIO; | |
958 | port_number = | |
4a6bb6d3 | 959 | rocker_tlv_get_u32(attrs[ROCKER_TLV_EVENT_MAC_VLAN_PPORT]) - 1; |
6c707945 | 960 | addr = rocker_tlv_data(attrs[ROCKER_TLV_EVENT_MAC_VLAN_MAC]); |
9b03c71f | 961 | vlan_id = rocker_tlv_get_be16(attrs[ROCKER_TLV_EVENT_MAC_VLAN_VLAN_ID]); |
6c707945 SF |
962 | |
963 | if (port_number >= rocker->port_count) | |
964 | return -EINVAL; | |
965 | ||
966 | rocker_port = rocker->ports[port_number]; | |
3fbcdbf3 | 967 | return rocker_world_port_ev_mac_vlan_seen(rocker_port, addr, vlan_id); |
6c707945 | 968 | } |
9f6bbf7c | 969 | |
e5054643 SH |
970 | static int rocker_event_process(const struct rocker *rocker, |
971 | const struct rocker_desc_info *desc_info) | |
4b8ac966 | 972 | { |
e5054643 SH |
973 | const struct rocker_tlv *attrs[ROCKER_TLV_EVENT_MAX + 1]; |
974 | const struct rocker_tlv *info; | |
4b8ac966 JP |
975 | u16 type; |
976 | ||
977 | rocker_tlv_parse_desc(attrs, ROCKER_TLV_EVENT_MAX, desc_info); | |
978 | if (!attrs[ROCKER_TLV_EVENT_TYPE] || | |
979 | !attrs[ROCKER_TLV_EVENT_INFO]) | |
980 | return -EIO; | |
981 | ||
982 | type = rocker_tlv_get_u16(attrs[ROCKER_TLV_EVENT_TYPE]); | |
983 | info = attrs[ROCKER_TLV_EVENT_INFO]; | |
984 | ||
985 | switch (type) { | |
986 | case ROCKER_TLV_EVENT_TYPE_LINK_CHANGED: | |
987 | return rocker_event_link_change(rocker, info); | |
6c707945 SF |
988 | case ROCKER_TLV_EVENT_TYPE_MAC_VLAN_SEEN: |
989 | return rocker_event_mac_vlan_seen(rocker, info); | |
4b8ac966 JP |
990 | } |
991 | ||
992 | return -EOPNOTSUPP; | |
993 | } | |
994 | ||
995 | static irqreturn_t rocker_event_irq_handler(int irq, void *dev_id) | |
996 | { | |
997 | struct rocker *rocker = dev_id; | |
e5054643 SH |
998 | const struct pci_dev *pdev = rocker->pdev; |
999 | const struct rocker_desc_info *desc_info; | |
4b8ac966 JP |
1000 | u32 credits = 0; |
1001 | int err; | |
1002 | ||
1003 | while ((desc_info = rocker_desc_tail_get(&rocker->event_ring))) { | |
1004 | err = rocker_desc_err(desc_info); | |
1005 | if (err) { | |
1006 | dev_err(&pdev->dev, "event desc received with err %d\n", | |
1007 | err); | |
1008 | } else { | |
1009 | err = rocker_event_process(rocker, desc_info); | |
1010 | if (err) | |
1011 | dev_err(&pdev->dev, "event processing failed with err %d\n", | |
1012 | err); | |
1013 | } | |
1014 | rocker_desc_gen_clear(desc_info); | |
1015 | rocker_desc_head_set(rocker, &rocker->event_ring, desc_info); | |
1016 | credits++; | |
1017 | } | |
1018 | rocker_dma_ring_credits_set(rocker, &rocker->event_ring, credits); | |
1019 | ||
1020 | return IRQ_HANDLED; | |
1021 | } | |
1022 | ||
1023 | static irqreturn_t rocker_tx_irq_handler(int irq, void *dev_id) | |
1024 | { | |
1025 | struct rocker_port *rocker_port = dev_id; | |
1026 | ||
1027 | napi_schedule(&rocker_port->napi_tx); | |
1028 | return IRQ_HANDLED; | |
1029 | } | |
1030 | ||
1031 | static irqreturn_t rocker_rx_irq_handler(int irq, void *dev_id) | |
1032 | { | |
1033 | struct rocker_port *rocker_port = dev_id; | |
1034 | ||
1035 | napi_schedule(&rocker_port->napi_rx); | |
1036 | return IRQ_HANDLED; | |
1037 | } | |
1038 | ||
1039 | /******************** | |
1040 | * Command interface | |
1041 | ********************/ | |
1042 | ||
3fbcdbf3 JP |
1043 | int rocker_cmd_exec(struct rocker_port *rocker_port, bool nowait, |
1044 | rocker_cmd_prep_cb_t prepare, void *prepare_priv, | |
1045 | rocker_cmd_proc_cb_t process, void *process_priv) | |
4b8ac966 | 1046 | { |
534ba6a8 | 1047 | struct rocker *rocker = rocker_port->rocker; |
4b8ac966 JP |
1048 | struct rocker_desc_info *desc_info; |
1049 | struct rocker_wait *wait; | |
179f9a25 | 1050 | unsigned long lock_flags; |
4b8ac966 JP |
1051 | int err; |
1052 | ||
179f9a25 | 1053 | spin_lock_irqsave(&rocker->cmd_ring_lock, lock_flags); |
c4f20321 | 1054 | |
4b8ac966 JP |
1055 | desc_info = rocker_desc_head_get(&rocker->cmd_ring); |
1056 | if (!desc_info) { | |
179f9a25 | 1057 | spin_unlock_irqrestore(&rocker->cmd_ring_lock, lock_flags); |
ca0a5f2a | 1058 | return -EAGAIN; |
4b8ac966 | 1059 | } |
c4f20321 | 1060 | |
ca0a5f2a JP |
1061 | wait = rocker_desc_cookie_ptr_get(desc_info); |
1062 | rocker_wait_init(wait); | |
1063 | wait->nowait = nowait; | |
1064 | ||
534ba6a8 | 1065 | err = prepare(rocker_port, desc_info, prepare_priv); |
4b8ac966 | 1066 | if (err) { |
179f9a25 | 1067 | spin_unlock_irqrestore(&rocker->cmd_ring_lock, lock_flags); |
ca0a5f2a | 1068 | return err; |
4b8ac966 | 1069 | } |
c4f20321 | 1070 | |
ae3907ec | 1071 | rocker_desc_head_set(rocker, &rocker->cmd_ring, desc_info); |
4b8ac966 | 1072 | |
179f9a25 SF |
1073 | spin_unlock_irqrestore(&rocker->cmd_ring_lock, lock_flags); |
1074 | ||
1075 | if (nowait) | |
1076 | return 0; | |
c4f20321 | 1077 | |
ae3907ec JP |
1078 | if (!rocker_wait_event_timeout(wait, HZ / 10)) |
1079 | return -EIO; | |
4b8ac966 JP |
1080 | |
1081 | err = rocker_desc_err(desc_info); | |
1082 | if (err) | |
1083 | return err; | |
1084 | ||
1085 | if (process) | |
534ba6a8 | 1086 | err = process(rocker_port, desc_info, process_priv); |
4b8ac966 JP |
1087 | |
1088 | rocker_desc_gen_clear(desc_info); | |
4b8ac966 JP |
1089 | return err; |
1090 | } | |
1091 | ||
1092 | static int | |
534ba6a8 | 1093 | rocker_cmd_get_port_settings_prep(const struct rocker_port *rocker_port, |
4b8ac966 JP |
1094 | struct rocker_desc_info *desc_info, |
1095 | void *priv) | |
1096 | { | |
1097 | struct rocker_tlv *cmd_info; | |
1098 | ||
1099 | if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE, | |
1100 | ROCKER_TLV_CMD_TYPE_GET_PORT_SETTINGS)) | |
1101 | return -EMSGSIZE; | |
1102 | cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO); | |
1103 | if (!cmd_info) | |
1104 | return -EMSGSIZE; | |
4a6bb6d3 SF |
1105 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_PPORT, |
1106 | rocker_port->pport)) | |
4b8ac966 JP |
1107 | return -EMSGSIZE; |
1108 | rocker_tlv_nest_end(desc_info, cmd_info); | |
1109 | return 0; | |
1110 | } | |
1111 | ||
1112 | static int | |
534ba6a8 | 1113 | rocker_cmd_get_port_settings_ethtool_proc(const struct rocker_port *rocker_port, |
e5054643 | 1114 | const struct rocker_desc_info *desc_info, |
4b8ac966 JP |
1115 | void *priv) |
1116 | { | |
1117 | struct ethtool_cmd *ecmd = priv; | |
e5054643 SH |
1118 | const struct rocker_tlv *attrs[ROCKER_TLV_CMD_MAX + 1]; |
1119 | const struct rocker_tlv *info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_MAX + 1]; | |
4b8ac966 JP |
1120 | u32 speed; |
1121 | u8 duplex; | |
1122 | u8 autoneg; | |
1123 | ||
1124 | rocker_tlv_parse_desc(attrs, ROCKER_TLV_CMD_MAX, desc_info); | |
1125 | if (!attrs[ROCKER_TLV_CMD_INFO]) | |
1126 | return -EIO; | |
1127 | ||
1128 | rocker_tlv_parse_nested(info_attrs, ROCKER_TLV_CMD_PORT_SETTINGS_MAX, | |
1129 | attrs[ROCKER_TLV_CMD_INFO]); | |
1130 | if (!info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_SPEED] || | |
1131 | !info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_DUPLEX] || | |
1132 | !info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_AUTONEG]) | |
1133 | return -EIO; | |
1134 | ||
1135 | speed = rocker_tlv_get_u32(info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_SPEED]); | |
1136 | duplex = rocker_tlv_get_u8(info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_DUPLEX]); | |
1137 | autoneg = rocker_tlv_get_u8(info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_AUTONEG]); | |
1138 | ||
1139 | ecmd->transceiver = XCVR_INTERNAL; | |
1140 | ecmd->supported = SUPPORTED_TP; | |
1141 | ecmd->phy_address = 0xff; | |
1142 | ecmd->port = PORT_TP; | |
1143 | ethtool_cmd_speed_set(ecmd, speed); | |
1144 | ecmd->duplex = duplex ? DUPLEX_FULL : DUPLEX_HALF; | |
1145 | ecmd->autoneg = autoneg ? AUTONEG_ENABLE : AUTONEG_DISABLE; | |
1146 | ||
1147 | return 0; | |
1148 | } | |
1149 | ||
1150 | static int | |
534ba6a8 | 1151 | rocker_cmd_get_port_settings_macaddr_proc(const struct rocker_port *rocker_port, |
e5054643 | 1152 | const struct rocker_desc_info *desc_info, |
4b8ac966 JP |
1153 | void *priv) |
1154 | { | |
1155 | unsigned char *macaddr = priv; | |
e5054643 SH |
1156 | const struct rocker_tlv *attrs[ROCKER_TLV_CMD_MAX + 1]; |
1157 | const struct rocker_tlv *info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_MAX + 1]; | |
1158 | const struct rocker_tlv *attr; | |
4b8ac966 JP |
1159 | |
1160 | rocker_tlv_parse_desc(attrs, ROCKER_TLV_CMD_MAX, desc_info); | |
1161 | if (!attrs[ROCKER_TLV_CMD_INFO]) | |
1162 | return -EIO; | |
1163 | ||
1164 | rocker_tlv_parse_nested(info_attrs, ROCKER_TLV_CMD_PORT_SETTINGS_MAX, | |
1165 | attrs[ROCKER_TLV_CMD_INFO]); | |
1166 | attr = info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_MACADDR]; | |
1167 | if (!attr) | |
1168 | return -EIO; | |
1169 | ||
1170 | if (rocker_tlv_len(attr) != ETH_ALEN) | |
1171 | return -EINVAL; | |
1172 | ||
1173 | ether_addr_copy(macaddr, rocker_tlv_data(attr)); | |
1174 | return 0; | |
1175 | } | |
1176 | ||
e1ba3dee JP |
1177 | static int |
1178 | rocker_cmd_get_port_settings_mode_proc(const struct rocker_port *rocker_port, | |
1179 | const struct rocker_desc_info *desc_info, | |
1180 | void *priv) | |
1181 | { | |
1182 | u8 *p_mode = priv; | |
1183 | const struct rocker_tlv *attrs[ROCKER_TLV_CMD_MAX + 1]; | |
1184 | const struct rocker_tlv *info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_MAX + 1]; | |
1185 | const struct rocker_tlv *attr; | |
1186 | ||
1187 | rocker_tlv_parse_desc(attrs, ROCKER_TLV_CMD_MAX, desc_info); | |
1188 | if (!attrs[ROCKER_TLV_CMD_INFO]) | |
1189 | return -EIO; | |
1190 | ||
1191 | rocker_tlv_parse_nested(info_attrs, ROCKER_TLV_CMD_PORT_SETTINGS_MAX, | |
1192 | attrs[ROCKER_TLV_CMD_INFO]); | |
1193 | attr = info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_MODE]; | |
1194 | if (!attr) | |
1195 | return -EIO; | |
1196 | ||
1197 | *p_mode = rocker_tlv_get_u8(info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_MODE]); | |
1198 | return 0; | |
1199 | } | |
1200 | ||
db19170b DA |
1201 | struct port_name { |
1202 | char *buf; | |
1203 | size_t len; | |
1204 | }; | |
1205 | ||
1206 | static int | |
534ba6a8 | 1207 | rocker_cmd_get_port_settings_phys_name_proc(const struct rocker_port *rocker_port, |
e5054643 | 1208 | const struct rocker_desc_info *desc_info, |
db19170b DA |
1209 | void *priv) |
1210 | { | |
e5054643 SH |
1211 | const struct rocker_tlv *info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_MAX + 1]; |
1212 | const struct rocker_tlv *attrs[ROCKER_TLV_CMD_MAX + 1]; | |
db19170b | 1213 | struct port_name *name = priv; |
e5054643 | 1214 | const struct rocker_tlv *attr; |
db19170b | 1215 | size_t i, j, len; |
e5054643 | 1216 | const char *str; |
db19170b DA |
1217 | |
1218 | rocker_tlv_parse_desc(attrs, ROCKER_TLV_CMD_MAX, desc_info); | |
1219 | if (!attrs[ROCKER_TLV_CMD_INFO]) | |
1220 | return -EIO; | |
1221 | ||
1222 | rocker_tlv_parse_nested(info_attrs, ROCKER_TLV_CMD_PORT_SETTINGS_MAX, | |
1223 | attrs[ROCKER_TLV_CMD_INFO]); | |
1224 | attr = info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_PHYS_NAME]; | |
1225 | if (!attr) | |
1226 | return -EIO; | |
1227 | ||
1228 | len = min_t(size_t, rocker_tlv_len(attr), name->len); | |
1229 | str = rocker_tlv_data(attr); | |
1230 | ||
1231 | /* make sure name only contains alphanumeric characters */ | |
1232 | for (i = j = 0; i < len; ++i) { | |
1233 | if (isalnum(str[i])) { | |
1234 | name->buf[j] = str[i]; | |
1235 | j++; | |
1236 | } | |
1237 | } | |
1238 | ||
1239 | if (j == 0) | |
1240 | return -EIO; | |
1241 | ||
1242 | name->buf[j] = '\0'; | |
1243 | ||
1244 | return 0; | |
1245 | } | |
1246 | ||
4b8ac966 | 1247 | static int |
534ba6a8 | 1248 | rocker_cmd_set_port_settings_ethtool_prep(const struct rocker_port *rocker_port, |
4b8ac966 JP |
1249 | struct rocker_desc_info *desc_info, |
1250 | void *priv) | |
1251 | { | |
1252 | struct ethtool_cmd *ecmd = priv; | |
1253 | struct rocker_tlv *cmd_info; | |
1254 | ||
1255 | if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE, | |
1256 | ROCKER_TLV_CMD_TYPE_SET_PORT_SETTINGS)) | |
1257 | return -EMSGSIZE; | |
1258 | cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO); | |
1259 | if (!cmd_info) | |
1260 | return -EMSGSIZE; | |
4a6bb6d3 SF |
1261 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_PPORT, |
1262 | rocker_port->pport)) | |
4b8ac966 JP |
1263 | return -EMSGSIZE; |
1264 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_SPEED, | |
1265 | ethtool_cmd_speed(ecmd))) | |
1266 | return -EMSGSIZE; | |
1267 | if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_DUPLEX, | |
1268 | ecmd->duplex)) | |
1269 | return -EMSGSIZE; | |
1270 | if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_AUTONEG, | |
1271 | ecmd->autoneg)) | |
1272 | return -EMSGSIZE; | |
1273 | rocker_tlv_nest_end(desc_info, cmd_info); | |
1274 | return 0; | |
1275 | } | |
1276 | ||
1277 | static int | |
534ba6a8 | 1278 | rocker_cmd_set_port_settings_macaddr_prep(const struct rocker_port *rocker_port, |
4b8ac966 JP |
1279 | struct rocker_desc_info *desc_info, |
1280 | void *priv) | |
1281 | { | |
e5054643 | 1282 | const unsigned char *macaddr = priv; |
4b8ac966 JP |
1283 | struct rocker_tlv *cmd_info; |
1284 | ||
1285 | if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE, | |
1286 | ROCKER_TLV_CMD_TYPE_SET_PORT_SETTINGS)) | |
1287 | return -EMSGSIZE; | |
1288 | cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO); | |
1289 | if (!cmd_info) | |
1290 | return -EMSGSIZE; | |
4a6bb6d3 SF |
1291 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_PPORT, |
1292 | rocker_port->pport)) | |
4b8ac966 JP |
1293 | return -EMSGSIZE; |
1294 | if (rocker_tlv_put(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_MACADDR, | |
1295 | ETH_ALEN, macaddr)) | |
1296 | return -EMSGSIZE; | |
1297 | rocker_tlv_nest_end(desc_info, cmd_info); | |
1298 | return 0; | |
1299 | } | |
1300 | ||
77a58c74 SF |
1301 | static int |
1302 | rocker_cmd_set_port_settings_mtu_prep(const struct rocker_port *rocker_port, | |
1303 | struct rocker_desc_info *desc_info, | |
1304 | void *priv) | |
1305 | { | |
1306 | int mtu = *(int *)priv; | |
1307 | struct rocker_tlv *cmd_info; | |
1308 | ||
1309 | if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE, | |
1310 | ROCKER_TLV_CMD_TYPE_SET_PORT_SETTINGS)) | |
1311 | return -EMSGSIZE; | |
1312 | cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO); | |
1313 | if (!cmd_info) | |
1314 | return -EMSGSIZE; | |
1315 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_PPORT, | |
1316 | rocker_port->pport)) | |
1317 | return -EMSGSIZE; | |
1318 | if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_MTU, | |
1319 | mtu)) | |
1320 | return -EMSGSIZE; | |
1321 | rocker_tlv_nest_end(desc_info, cmd_info); | |
1322 | return 0; | |
1323 | } | |
1324 | ||
5111f80c | 1325 | static int |
534ba6a8 | 1326 | rocker_cmd_set_port_learning_prep(const struct rocker_port *rocker_port, |
5111f80c SF |
1327 | struct rocker_desc_info *desc_info, |
1328 | void *priv) | |
1329 | { | |
c1fe922e | 1330 | bool learning = *(bool *)priv; |
5111f80c SF |
1331 | struct rocker_tlv *cmd_info; |
1332 | ||
1333 | if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE, | |
1334 | ROCKER_TLV_CMD_TYPE_SET_PORT_SETTINGS)) | |
1335 | return -EMSGSIZE; | |
1336 | cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO); | |
1337 | if (!cmd_info) | |
1338 | return -EMSGSIZE; | |
4a6bb6d3 SF |
1339 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_PPORT, |
1340 | rocker_port->pport)) | |
5111f80c SF |
1341 | return -EMSGSIZE; |
1342 | if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_LEARNING, | |
c1fe922e | 1343 | learning)) |
5111f80c SF |
1344 | return -EMSGSIZE; |
1345 | rocker_tlv_nest_end(desc_info, cmd_info); | |
1346 | return 0; | |
1347 | } | |
1348 | ||
4b8ac966 JP |
1349 | static int rocker_cmd_get_port_settings_ethtool(struct rocker_port *rocker_port, |
1350 | struct ethtool_cmd *ecmd) | |
1351 | { | |
53901cc0 | 1352 | return rocker_cmd_exec(rocker_port, false, |
4b8ac966 JP |
1353 | rocker_cmd_get_port_settings_prep, NULL, |
1354 | rocker_cmd_get_port_settings_ethtool_proc, | |
c4f20321 | 1355 | ecmd); |
4b8ac966 JP |
1356 | } |
1357 | ||
1358 | static int rocker_cmd_get_port_settings_macaddr(struct rocker_port *rocker_port, | |
1359 | unsigned char *macaddr) | |
1360 | { | |
53901cc0 | 1361 | return rocker_cmd_exec(rocker_port, false, |
4b8ac966 JP |
1362 | rocker_cmd_get_port_settings_prep, NULL, |
1363 | rocker_cmd_get_port_settings_macaddr_proc, | |
c4f20321 | 1364 | macaddr); |
4b8ac966 JP |
1365 | } |
1366 | ||
e1ba3dee JP |
1367 | static int rocker_cmd_get_port_settings_mode(struct rocker_port *rocker_port, |
1368 | u8 *p_mode) | |
1369 | { | |
53901cc0 | 1370 | return rocker_cmd_exec(rocker_port, false, |
e1ba3dee JP |
1371 | rocker_cmd_get_port_settings_prep, NULL, |
1372 | rocker_cmd_get_port_settings_mode_proc, p_mode); | |
1373 | } | |
1374 | ||
4b8ac966 JP |
1375 | static int rocker_cmd_set_port_settings_ethtool(struct rocker_port *rocker_port, |
1376 | struct ethtool_cmd *ecmd) | |
1377 | { | |
53901cc0 | 1378 | return rocker_cmd_exec(rocker_port, false, |
4b8ac966 | 1379 | rocker_cmd_set_port_settings_ethtool_prep, |
c4f20321 | 1380 | ecmd, NULL, NULL); |
4b8ac966 JP |
1381 | } |
1382 | ||
1383 | static int rocker_cmd_set_port_settings_macaddr(struct rocker_port *rocker_port, | |
1384 | unsigned char *macaddr) | |
1385 | { | |
53901cc0 | 1386 | return rocker_cmd_exec(rocker_port, false, |
4b8ac966 | 1387 | rocker_cmd_set_port_settings_macaddr_prep, |
c4f20321 | 1388 | macaddr, NULL, NULL); |
4b8ac966 JP |
1389 | } |
1390 | ||
77a58c74 SF |
1391 | static int rocker_cmd_set_port_settings_mtu(struct rocker_port *rocker_port, |
1392 | int mtu) | |
1393 | { | |
53901cc0 | 1394 | return rocker_cmd_exec(rocker_port, false, |
77a58c74 SF |
1395 | rocker_cmd_set_port_settings_mtu_prep, |
1396 | &mtu, NULL, NULL); | |
1397 | } | |
1398 | ||
3fbcdbf3 JP |
1399 | int rocker_port_set_learning(struct rocker_port *rocker_port, |
1400 | bool learning) | |
5111f80c | 1401 | { |
53901cc0 | 1402 | return rocker_cmd_exec(rocker_port, false, |
5111f80c | 1403 | rocker_cmd_set_port_learning_prep, |
c1fe922e | 1404 | &learning, NULL, NULL); |
5111f80c SF |
1405 | } |
1406 | ||
e420114e JP |
1407 | /********************** |
1408 | * Worlds manipulation | |
1409 | **********************/ | |
1410 | ||
1411 | static struct rocker_world_ops *rocker_world_ops[] = { | |
1412 | &rocker_ofdpa_ops, | |
1413 | }; | |
1414 | ||
1415 | #define ROCKER_WORLD_OPS_LEN ARRAY_SIZE(rocker_world_ops) | |
1416 | ||
1417 | static struct rocker_world_ops *rocker_world_ops_find(u8 mode) | |
1418 | { | |
1419 | int i; | |
1420 | ||
1421 | for (i = 0; i < ROCKER_WORLD_OPS_LEN; i++) | |
1422 | if (rocker_world_ops[i]->mode == mode) | |
1423 | return rocker_world_ops[i]; | |
1424 | return NULL; | |
1425 | } | |
1426 | ||
1427 | static int rocker_world_init(struct rocker *rocker, u8 mode) | |
1428 | { | |
1429 | struct rocker_world_ops *wops; | |
1430 | int err; | |
1431 | ||
1432 | wops = rocker_world_ops_find(mode); | |
1433 | if (!wops) { | |
1434 | dev_err(&rocker->pdev->dev, "port mode \"%d\" is not supported\n", | |
1435 | mode); | |
1436 | return -EINVAL; | |
1437 | } | |
1438 | rocker->wops = wops; | |
1439 | rocker->wpriv = kzalloc(wops->priv_size, GFP_KERNEL); | |
1440 | if (!rocker->wpriv) | |
1441 | return -ENOMEM; | |
1442 | if (!wops->init) | |
1443 | return 0; | |
1444 | err = wops->init(rocker); | |
1445 | if (err) | |
1446 | kfree(rocker->wpriv); | |
1447 | return err; | |
1448 | } | |
1449 | ||
1450 | static void rocker_world_fini(struct rocker *rocker) | |
1451 | { | |
1452 | struct rocker_world_ops *wops = rocker->wops; | |
1453 | ||
1454 | if (!wops || !wops->fini) | |
1455 | return; | |
1456 | wops->fini(rocker); | |
1457 | kfree(rocker->wpriv); | |
1458 | } | |
1459 | ||
1460 | static int rocker_world_check_init(struct rocker_port *rocker_port) | |
1461 | { | |
1462 | struct rocker *rocker = rocker_port->rocker; | |
1463 | u8 mode; | |
1464 | int err; | |
1465 | ||
1466 | err = rocker_cmd_get_port_settings_mode(rocker_port, &mode); | |
1467 | if (err) { | |
1468 | dev_err(&rocker->pdev->dev, "failed to get port mode\n"); | |
1469 | return err; | |
1470 | } | |
1471 | if (rocker->wops) { | |
1472 | if (rocker->wops->mode != mode) { | |
1473 | dev_err(&rocker->pdev->dev, "hardware has ports in different worlds, which is not supported\n"); | |
1474 | return err; | |
1475 | } | |
1476 | return 0; | |
1477 | } | |
1478 | return rocker_world_init(rocker, mode); | |
1479 | } | |
1480 | ||
1481 | static int rocker_world_port_pre_init(struct rocker_port *rocker_port) | |
1482 | { | |
1483 | struct rocker_world_ops *wops = rocker_port->rocker->wops; | |
1484 | int err; | |
1485 | ||
1486 | rocker_port->wpriv = kzalloc(wops->port_priv_size, GFP_KERNEL); | |
1487 | if (!rocker_port->wpriv) | |
1488 | return -ENOMEM; | |
1489 | if (!wops->port_pre_init) | |
1490 | return 0; | |
1491 | err = wops->port_pre_init(rocker_port); | |
1492 | if (err) | |
1493 | kfree(rocker_port->wpriv); | |
1494 | return 0; | |
1495 | } | |
1496 | ||
1497 | static int rocker_world_port_init(struct rocker_port *rocker_port) | |
1498 | { | |
1499 | struct rocker_world_ops *wops = rocker_port->rocker->wops; | |
1500 | ||
1501 | if (!wops->port_init) | |
1502 | return 0; | |
1503 | return wops->port_init(rocker_port); | |
1504 | } | |
1505 | ||
1506 | static void rocker_world_port_fini(struct rocker_port *rocker_port) | |
1507 | { | |
1508 | struct rocker_world_ops *wops = rocker_port->rocker->wops; | |
1509 | ||
1510 | if (!wops->port_fini) | |
1511 | return; | |
1512 | wops->port_fini(rocker_port); | |
1513 | } | |
1514 | ||
1515 | static void rocker_world_port_post_fini(struct rocker_port *rocker_port) | |
1516 | { | |
1517 | struct rocker_world_ops *wops = rocker_port->rocker->wops; | |
1518 | ||
1519 | if (!wops->port_post_fini) | |
1520 | return; | |
1521 | wops->port_post_fini(rocker_port); | |
1522 | kfree(rocker_port->wpriv); | |
1523 | } | |
1524 | ||
1525 | static int rocker_world_port_open(struct rocker_port *rocker_port) | |
1526 | { | |
1527 | struct rocker_world_ops *wops = rocker_port->rocker->wops; | |
1528 | ||
1529 | if (!wops->port_open) | |
1530 | return 0; | |
1531 | return wops->port_open(rocker_port); | |
1532 | } | |
1533 | ||
1534 | static void rocker_world_port_stop(struct rocker_port *rocker_port) | |
1535 | { | |
1536 | struct rocker_world_ops *wops = rocker_port->rocker->wops; | |
1537 | ||
1538 | if (!wops->port_stop) | |
1539 | return; | |
1540 | wops->port_stop(rocker_port); | |
1541 | } | |
1542 | ||
1543 | static int rocker_world_port_attr_stp_state_set(struct rocker_port *rocker_port, | |
1544 | u8 state, | |
1545 | struct switchdev_trans *trans) | |
1546 | { | |
1547 | struct rocker_world_ops *wops = rocker_port->rocker->wops; | |
1548 | ||
1549 | if (!wops->port_attr_stp_state_set) | |
fccd84d4 | 1550 | return -EOPNOTSUPP; |
e420114e JP |
1551 | return wops->port_attr_stp_state_set(rocker_port, state, trans); |
1552 | } | |
1553 | ||
1554 | static int | |
1555 | rocker_world_port_attr_bridge_flags_set(struct rocker_port *rocker_port, | |
1556 | unsigned long brport_flags, | |
1557 | struct switchdev_trans *trans) | |
1558 | { | |
1559 | struct rocker_world_ops *wops = rocker_port->rocker->wops; | |
1560 | ||
1561 | if (!wops->port_attr_bridge_flags_set) | |
fccd84d4 | 1562 | return -EOPNOTSUPP; |
e420114e JP |
1563 | return wops->port_attr_bridge_flags_set(rocker_port, brport_flags, |
1564 | trans); | |
1565 | } | |
1566 | ||
1567 | static int | |
1568 | rocker_world_port_attr_bridge_flags_get(const struct rocker_port *rocker_port, | |
1569 | unsigned long *p_brport_flags) | |
1570 | { | |
1571 | struct rocker_world_ops *wops = rocker_port->rocker->wops; | |
1572 | ||
1573 | if (!wops->port_attr_bridge_flags_get) | |
fccd84d4 | 1574 | return -EOPNOTSUPP; |
e420114e JP |
1575 | return wops->port_attr_bridge_flags_get(rocker_port, p_brport_flags); |
1576 | } | |
1577 | ||
1578 | static int | |
1579 | rocker_world_port_attr_bridge_ageing_time_set(struct rocker_port *rocker_port, | |
1580 | u32 ageing_time, | |
1581 | struct switchdev_trans *trans) | |
1582 | ||
1583 | { | |
1584 | struct rocker_world_ops *wops = rocker_port->rocker->wops; | |
1585 | ||
1586 | if (!wops->port_attr_bridge_ageing_time_set) | |
fccd84d4 | 1587 | return -EOPNOTSUPP; |
e420114e JP |
1588 | return wops->port_attr_bridge_ageing_time_set(rocker_port, ageing_time, |
1589 | trans); | |
1590 | } | |
1591 | ||
1592 | static int | |
1593 | rocker_world_port_obj_vlan_add(struct rocker_port *rocker_port, | |
1594 | const struct switchdev_obj_port_vlan *vlan, | |
1595 | struct switchdev_trans *trans) | |
1596 | { | |
1597 | struct rocker_world_ops *wops = rocker_port->rocker->wops; | |
1598 | ||
1599 | if (!wops->port_obj_vlan_add) | |
fccd84d4 | 1600 | return -EOPNOTSUPP; |
e420114e JP |
1601 | return wops->port_obj_vlan_add(rocker_port, vlan, trans); |
1602 | } | |
1603 | ||
1604 | static int | |
1605 | rocker_world_port_obj_vlan_del(struct rocker_port *rocker_port, | |
1606 | const struct switchdev_obj_port_vlan *vlan) | |
1607 | { | |
1608 | struct rocker_world_ops *wops = rocker_port->rocker->wops; | |
1609 | ||
1610 | if (!wops->port_obj_vlan_del) | |
fccd84d4 | 1611 | return -EOPNOTSUPP; |
e420114e JP |
1612 | return wops->port_obj_vlan_del(rocker_port, vlan); |
1613 | } | |
1614 | ||
1615 | static int | |
1616 | rocker_world_port_obj_vlan_dump(const struct rocker_port *rocker_port, | |
1617 | struct switchdev_obj_port_vlan *vlan, | |
1618 | switchdev_obj_dump_cb_t *cb) | |
1619 | { | |
1620 | struct rocker_world_ops *wops = rocker_port->rocker->wops; | |
1621 | ||
1622 | if (!wops->port_obj_vlan_dump) | |
fccd84d4 | 1623 | return -EOPNOTSUPP; |
e420114e JP |
1624 | return wops->port_obj_vlan_dump(rocker_port, vlan, cb); |
1625 | } | |
1626 | ||
1627 | static int | |
1628 | rocker_world_port_obj_fib4_add(struct rocker_port *rocker_port, | |
1629 | const struct switchdev_obj_ipv4_fib *fib4, | |
1630 | struct switchdev_trans *trans) | |
1631 | { | |
1632 | struct rocker_world_ops *wops = rocker_port->rocker->wops; | |
1633 | ||
1634 | if (!wops->port_obj_fib4_add) | |
fccd84d4 | 1635 | return -EOPNOTSUPP; |
e420114e JP |
1636 | return wops->port_obj_fib4_add(rocker_port, fib4, trans); |
1637 | } | |
1638 | ||
1639 | static int | |
1640 | rocker_world_port_obj_fib4_del(struct rocker_port *rocker_port, | |
1641 | const struct switchdev_obj_ipv4_fib *fib4) | |
1642 | { | |
1643 | struct rocker_world_ops *wops = rocker_port->rocker->wops; | |
1644 | ||
1645 | if (!wops->port_obj_fib4_del) | |
fccd84d4 | 1646 | return -EOPNOTSUPP; |
e420114e JP |
1647 | return wops->port_obj_fib4_del(rocker_port, fib4); |
1648 | } | |
1649 | ||
1650 | static int | |
1651 | rocker_world_port_obj_fdb_add(struct rocker_port *rocker_port, | |
1652 | const struct switchdev_obj_port_fdb *fdb, | |
1653 | struct switchdev_trans *trans) | |
1654 | { | |
1655 | struct rocker_world_ops *wops = rocker_port->rocker->wops; | |
1656 | ||
1657 | if (!wops->port_obj_fdb_add) | |
fccd84d4 | 1658 | return -EOPNOTSUPP; |
e420114e JP |
1659 | return wops->port_obj_fdb_add(rocker_port, fdb, trans); |
1660 | } | |
1661 | ||
1662 | static int | |
1663 | rocker_world_port_obj_fdb_del(struct rocker_port *rocker_port, | |
1664 | const struct switchdev_obj_port_fdb *fdb) | |
1665 | { | |
1666 | struct rocker_world_ops *wops = rocker_port->rocker->wops; | |
1667 | ||
1668 | if (!wops->port_obj_fdb_del) | |
fccd84d4 | 1669 | return -EOPNOTSUPP; |
e420114e JP |
1670 | return wops->port_obj_fdb_del(rocker_port, fdb); |
1671 | } | |
1672 | ||
1673 | static int | |
1674 | rocker_world_port_obj_fdb_dump(const struct rocker_port *rocker_port, | |
1675 | struct switchdev_obj_port_fdb *fdb, | |
1676 | switchdev_obj_dump_cb_t *cb) | |
1677 | { | |
1678 | struct rocker_world_ops *wops = rocker_port->rocker->wops; | |
1679 | ||
1680 | if (!wops->port_obj_fdb_dump) | |
fccd84d4 | 1681 | return -EOPNOTSUPP; |
e420114e JP |
1682 | return wops->port_obj_fdb_dump(rocker_port, fdb, cb); |
1683 | } | |
1684 | ||
1685 | static int rocker_world_port_master_linked(struct rocker_port *rocker_port, | |
1686 | struct net_device *master) | |
1687 | { | |
1688 | struct rocker_world_ops *wops = rocker_port->rocker->wops; | |
1689 | ||
1690 | if (!wops->port_master_linked) | |
fccd84d4 | 1691 | return -EOPNOTSUPP; |
e420114e JP |
1692 | return wops->port_master_linked(rocker_port, master); |
1693 | } | |
1694 | ||
1695 | static int rocker_world_port_master_unlinked(struct rocker_port *rocker_port, | |
1696 | struct net_device *master) | |
1697 | { | |
1698 | struct rocker_world_ops *wops = rocker_port->rocker->wops; | |
1699 | ||
1700 | if (!wops->port_master_unlinked) | |
fccd84d4 | 1701 | return -EOPNOTSUPP; |
e420114e JP |
1702 | return wops->port_master_unlinked(rocker_port, master); |
1703 | } | |
1704 | ||
1705 | static int rocker_world_port_neigh_update(struct rocker_port *rocker_port, | |
1706 | struct neighbour *n) | |
1707 | { | |
1708 | struct rocker_world_ops *wops = rocker_port->rocker->wops; | |
1709 | ||
1710 | if (!wops->port_neigh_update) | |
fccd84d4 | 1711 | return -EOPNOTSUPP; |
e420114e JP |
1712 | return wops->port_neigh_update(rocker_port, n); |
1713 | } | |
1714 | ||
1715 | static int rocker_world_port_neigh_destroy(struct rocker_port *rocker_port, | |
1716 | struct neighbour *n) | |
1717 | { | |
1718 | struct rocker_world_ops *wops = rocker_port->rocker->wops; | |
1719 | ||
1720 | if (!wops->port_neigh_destroy) | |
fccd84d4 | 1721 | return -EOPNOTSUPP; |
e420114e JP |
1722 | return wops->port_neigh_destroy(rocker_port, n); |
1723 | } | |
1724 | ||
1725 | static int rocker_world_port_ev_mac_vlan_seen(struct rocker_port *rocker_port, | |
1726 | const unsigned char *addr, | |
1727 | __be16 vlan_id) | |
1728 | { | |
1729 | struct rocker_world_ops *wops = rocker_port->rocker->wops; | |
1730 | ||
1731 | if (!wops->port_ev_mac_vlan_seen) | |
fccd84d4 | 1732 | return -EOPNOTSUPP; |
e420114e JP |
1733 | return wops->port_ev_mac_vlan_seen(rocker_port, addr, vlan_id); |
1734 | } | |
1735 | ||
3fbcdbf3 JP |
1736 | /***************** |
1737 | * Net device ops | |
1738 | *****************/ | |
1739 | ||
1740 | static int rocker_port_open(struct net_device *dev) | |
9f6bbf7c | 1741 | { |
3fbcdbf3 JP |
1742 | struct rocker_port *rocker_port = netdev_priv(dev); |
1743 | int err; | |
9f6bbf7c | 1744 | |
3fbcdbf3 JP |
1745 | err = rocker_port_dma_rings_init(rocker_port); |
1746 | if (err) | |
1747 | return err; | |
9f6bbf7c | 1748 | |
3fbcdbf3 JP |
1749 | err = request_irq(rocker_msix_tx_vector(rocker_port), |
1750 | rocker_tx_irq_handler, 0, | |
1751 | rocker_driver_name, rocker_port); | |
1752 | if (err) { | |
1753 | netdev_err(rocker_port->dev, "cannot assign tx irq\n"); | |
1754 | goto err_request_tx_irq; | |
1755 | } | |
9f6bbf7c | 1756 | |
3fbcdbf3 JP |
1757 | err = request_irq(rocker_msix_rx_vector(rocker_port), |
1758 | rocker_rx_irq_handler, 0, | |
1759 | rocker_driver_name, rocker_port); | |
1760 | if (err) { | |
1761 | netdev_err(rocker_port->dev, "cannot assign rx irq\n"); | |
1762 | goto err_request_rx_irq; | |
1763 | } | |
9f6bbf7c | 1764 | |
3fbcdbf3 JP |
1765 | err = rocker_world_port_open(rocker_port); |
1766 | if (err) { | |
1767 | netdev_err(rocker_port->dev, "cannot open port in world\n"); | |
1768 | goto err_world_port_open; | |
1769 | } | |
9f6bbf7c | 1770 | |
3fbcdbf3 JP |
1771 | napi_enable(&rocker_port->napi_tx); |
1772 | napi_enable(&rocker_port->napi_rx); | |
1773 | if (!dev->proto_down) | |
1774 | rocker_port_set_enable(rocker_port, true); | |
1775 | netif_start_queue(dev); | |
9f6bbf7c | 1776 | return 0; |
3fbcdbf3 JP |
1777 | |
1778 | err_world_port_open: | |
1779 | free_irq(rocker_msix_rx_vector(rocker_port), rocker_port); | |
1780 | err_request_rx_irq: | |
1781 | free_irq(rocker_msix_tx_vector(rocker_port), rocker_port); | |
1782 | err_request_tx_irq: | |
1783 | rocker_port_dma_rings_fini(rocker_port); | |
1784 | return err; | |
9f6bbf7c SF |
1785 | } |
1786 | ||
3fbcdbf3 | 1787 | static int rocker_port_stop(struct net_device *dev) |
9f6bbf7c | 1788 | { |
3fbcdbf3 JP |
1789 | struct rocker_port *rocker_port = netdev_priv(dev); |
1790 | ||
1791 | netif_stop_queue(dev); | |
1792 | rocker_port_set_enable(rocker_port, false); | |
1793 | napi_disable(&rocker_port->napi_rx); | |
1794 | napi_disable(&rocker_port->napi_tx); | |
1795 | rocker_world_port_stop(rocker_port); | |
1796 | free_irq(rocker_msix_rx_vector(rocker_port), rocker_port); | |
1797 | free_irq(rocker_msix_tx_vector(rocker_port), rocker_port); | |
1798 | rocker_port_dma_rings_fini(rocker_port); | |
9f6bbf7c SF |
1799 | |
1800 | return 0; | |
1801 | } | |
1802 | ||
3fbcdbf3 JP |
1803 | static void rocker_tx_desc_frags_unmap(const struct rocker_port *rocker_port, |
1804 | const struct rocker_desc_info *desc_info) | |
9f6bbf7c | 1805 | { |
3fbcdbf3 JP |
1806 | const struct rocker *rocker = rocker_port->rocker; |
1807 | struct pci_dev *pdev = rocker->pdev; | |
1808 | const struct rocker_tlv *attrs[ROCKER_TLV_TX_MAX + 1]; | |
1809 | struct rocker_tlv *attr; | |
1810 | int rem; | |
9f6bbf7c | 1811 | |
3fbcdbf3 JP |
1812 | rocker_tlv_parse_desc(attrs, ROCKER_TLV_TX_MAX, desc_info); |
1813 | if (!attrs[ROCKER_TLV_TX_FRAGS]) | |
1814 | return; | |
1815 | rocker_tlv_for_each_nested(attr, attrs[ROCKER_TLV_TX_FRAGS], rem) { | |
1816 | const struct rocker_tlv *frag_attrs[ROCKER_TLV_TX_FRAG_ATTR_MAX + 1]; | |
1817 | dma_addr_t dma_handle; | |
1818 | size_t len; | |
1819 | ||
1820 | if (rocker_tlv_type(attr) != ROCKER_TLV_TX_FRAG) | |
1821 | continue; | |
1822 | rocker_tlv_parse_nested(frag_attrs, ROCKER_TLV_TX_FRAG_ATTR_MAX, | |
1823 | attr); | |
1824 | if (!frag_attrs[ROCKER_TLV_TX_FRAG_ATTR_ADDR] || | |
1825 | !frag_attrs[ROCKER_TLV_TX_FRAG_ATTR_LEN]) | |
1826 | continue; | |
1827 | dma_handle = rocker_tlv_get_u64(frag_attrs[ROCKER_TLV_TX_FRAG_ATTR_ADDR]); | |
1828 | len = rocker_tlv_get_u16(frag_attrs[ROCKER_TLV_TX_FRAG_ATTR_LEN]); | |
1829 | pci_unmap_single(pdev, dma_handle, len, DMA_TO_DEVICE); | |
1830 | } | |
9f6bbf7c SF |
1831 | } |
1832 | ||
3fbcdbf3 JP |
1833 | static int rocker_tx_desc_frag_map_put(const struct rocker_port *rocker_port, |
1834 | struct rocker_desc_info *desc_info, | |
1835 | char *buf, size_t buf_len) | |
9f6bbf7c | 1836 | { |
3fbcdbf3 JP |
1837 | const struct rocker *rocker = rocker_port->rocker; |
1838 | struct pci_dev *pdev = rocker->pdev; | |
1839 | dma_addr_t dma_handle; | |
1840 | struct rocker_tlv *frag; | |
9f6bbf7c | 1841 | |
3fbcdbf3 JP |
1842 | dma_handle = pci_map_single(pdev, buf, buf_len, DMA_TO_DEVICE); |
1843 | if (unlikely(pci_dma_mapping_error(pdev, dma_handle))) { | |
1844 | if (net_ratelimit()) | |
1845 | netdev_err(rocker_port->dev, "failed to dma map tx frag\n"); | |
1846 | return -EIO; | |
9f6bbf7c | 1847 | } |
3fbcdbf3 JP |
1848 | frag = rocker_tlv_nest_start(desc_info, ROCKER_TLV_TX_FRAG); |
1849 | if (!frag) | |
1850 | goto unmap_frag; | |
1851 | if (rocker_tlv_put_u64(desc_info, ROCKER_TLV_TX_FRAG_ATTR_ADDR, | |
1852 | dma_handle)) | |
1853 | goto nest_cancel; | |
1854 | if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_TX_FRAG_ATTR_LEN, | |
1855 | buf_len)) | |
1856 | goto nest_cancel; | |
1857 | rocker_tlv_nest_end(desc_info, frag); | |
9f6bbf7c | 1858 | return 0; |
3fbcdbf3 JP |
1859 | |
1860 | nest_cancel: | |
1861 | rocker_tlv_nest_cancel(desc_info, frag); | |
1862 | unmap_frag: | |
1863 | pci_unmap_single(pdev, dma_handle, buf_len, DMA_TO_DEVICE); | |
1864 | return -EMSGSIZE; | |
9f6bbf7c SF |
1865 | } |
1866 | ||
3fbcdbf3 | 1867 | static netdev_tx_t rocker_port_xmit(struct sk_buff *skb, struct net_device *dev) |
9f6bbf7c | 1868 | { |
3fbcdbf3 JP |
1869 | struct rocker_port *rocker_port = netdev_priv(dev); |
1870 | struct rocker *rocker = rocker_port->rocker; | |
1871 | struct rocker_desc_info *desc_info; | |
1872 | struct rocker_tlv *frags; | |
1873 | int i; | |
1874 | int err; | |
4b8ac966 JP |
1875 | |
1876 | desc_info = rocker_desc_head_get(&rocker_port->tx_ring); | |
1877 | if (unlikely(!desc_info)) { | |
1878 | if (net_ratelimit()) | |
1879 | netdev_err(dev, "tx ring full when queue awake\n"); | |
1880 | return NETDEV_TX_BUSY; | |
1881 | } | |
1882 | ||
1883 | rocker_desc_cookie_ptr_set(desc_info, skb); | |
1884 | ||
1885 | frags = rocker_tlv_nest_start(desc_info, ROCKER_TLV_TX_FRAGS); | |
1886 | if (!frags) | |
1887 | goto out; | |
1888 | err = rocker_tx_desc_frag_map_put(rocker_port, desc_info, | |
1889 | skb->data, skb_headlen(skb)); | |
1890 | if (err) | |
1891 | goto nest_cancel; | |
95b9be64 JP |
1892 | if (skb_shinfo(skb)->nr_frags > ROCKER_TX_FRAGS_MAX) { |
1893 | err = skb_linearize(skb); | |
1894 | if (err) | |
1895 | goto unmap_frags; | |
1896 | } | |
4b8ac966 JP |
1897 | |
1898 | for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) { | |
1899 | const skb_frag_t *frag = &skb_shinfo(skb)->frags[i]; | |
1900 | ||
1901 | err = rocker_tx_desc_frag_map_put(rocker_port, desc_info, | |
1902 | skb_frag_address(frag), | |
1903 | skb_frag_size(frag)); | |
1904 | if (err) | |
1905 | goto unmap_frags; | |
1906 | } | |
1907 | rocker_tlv_nest_end(desc_info, frags); | |
1908 | ||
1909 | rocker_desc_gen_clear(desc_info); | |
1910 | rocker_desc_head_set(rocker, &rocker_port->tx_ring, desc_info); | |
1911 | ||
1912 | desc_info = rocker_desc_head_get(&rocker_port->tx_ring); | |
1913 | if (!desc_info) | |
1914 | netif_stop_queue(dev); | |
1915 | ||
1916 | return NETDEV_TX_OK; | |
1917 | ||
1918 | unmap_frags: | |
1919 | rocker_tx_desc_frags_unmap(rocker_port, desc_info); | |
1920 | nest_cancel: | |
1921 | rocker_tlv_nest_cancel(desc_info, frags); | |
1922 | out: | |
1923 | dev_kfree_skb(skb); | |
f2bbca51 DA |
1924 | dev->stats.tx_dropped++; |
1925 | ||
4b8ac966 JP |
1926 | return NETDEV_TX_OK; |
1927 | } | |
1928 | ||
1929 | static int rocker_port_set_mac_address(struct net_device *dev, void *p) | |
1930 | { | |
1931 | struct sockaddr *addr = p; | |
1932 | struct rocker_port *rocker_port = netdev_priv(dev); | |
1933 | int err; | |
1934 | ||
1935 | if (!is_valid_ether_addr(addr->sa_data)) | |
1936 | return -EADDRNOTAVAIL; | |
1937 | ||
1938 | err = rocker_cmd_set_port_settings_macaddr(rocker_port, addr->sa_data); | |
1939 | if (err) | |
1940 | return err; | |
1941 | memcpy(dev->dev_addr, addr->sa_data, dev->addr_len); | |
1942 | return 0; | |
1943 | } | |
1944 | ||
77a58c74 SF |
1945 | static int rocker_port_change_mtu(struct net_device *dev, int new_mtu) |
1946 | { | |
1947 | struct rocker_port *rocker_port = netdev_priv(dev); | |
1948 | int running = netif_running(dev); | |
1949 | int err; | |
1950 | ||
1951 | #define ROCKER_PORT_MIN_MTU 68 | |
1952 | #define ROCKER_PORT_MAX_MTU 9000 | |
1953 | ||
1954 | if (new_mtu < ROCKER_PORT_MIN_MTU || new_mtu > ROCKER_PORT_MAX_MTU) | |
1955 | return -EINVAL; | |
1956 | ||
1957 | if (running) | |
1958 | rocker_port_stop(dev); | |
1959 | ||
1960 | netdev_info(dev, "MTU change from %d to %d\n", dev->mtu, new_mtu); | |
1961 | dev->mtu = new_mtu; | |
1962 | ||
1963 | err = rocker_cmd_set_port_settings_mtu(rocker_port, new_mtu); | |
1964 | if (err) | |
1965 | return err; | |
1966 | ||
1967 | if (running) | |
1968 | err = rocker_port_open(dev); | |
1969 | ||
1970 | return err; | |
1971 | } | |
1972 | ||
db19170b DA |
1973 | static int rocker_port_get_phys_port_name(struct net_device *dev, |
1974 | char *buf, size_t len) | |
1975 | { | |
1976 | struct rocker_port *rocker_port = netdev_priv(dev); | |
1977 | struct port_name name = { .buf = buf, .len = len }; | |
1978 | int err; | |
1979 | ||
53901cc0 | 1980 | err = rocker_cmd_exec(rocker_port, false, |
db19170b DA |
1981 | rocker_cmd_get_port_settings_prep, NULL, |
1982 | rocker_cmd_get_port_settings_phys_name_proc, | |
c4f20321 | 1983 | &name); |
db19170b DA |
1984 | |
1985 | return err ? -EOPNOTSUPP : 0; | |
1986 | } | |
1987 | ||
c3055246 AK |
1988 | static int rocker_port_change_proto_down(struct net_device *dev, |
1989 | bool proto_down) | |
1990 | { | |
1991 | struct rocker_port *rocker_port = netdev_priv(dev); | |
1992 | ||
1993 | if (rocker_port->dev->flags & IFF_UP) | |
1994 | rocker_port_set_enable(rocker_port, !proto_down); | |
1995 | rocker_port->dev->proto_down = proto_down; | |
1996 | return 0; | |
1997 | } | |
1998 | ||
dd19f83d SF |
1999 | static void rocker_port_neigh_destroy(struct neighbour *n) |
2000 | { | |
2001 | struct rocker_port *rocker_port = netdev_priv(n->dev); | |
e420114e | 2002 | int err; |
dd19f83d | 2003 | |
e420114e JP |
2004 | err = rocker_world_port_neigh_destroy(rocker_port, n); |
2005 | if (err) | |
2006 | netdev_warn(rocker_port->dev, "failed to handle neigh destroy (err %d)\n", | |
2007 | err); | |
dd19f83d SF |
2008 | } |
2009 | ||
98237d43 SF |
2010 | static const struct net_device_ops rocker_port_netdev_ops = { |
2011 | .ndo_open = rocker_port_open, | |
2012 | .ndo_stop = rocker_port_stop, | |
2013 | .ndo_start_xmit = rocker_port_xmit, | |
2014 | .ndo_set_mac_address = rocker_port_set_mac_address, | |
77a58c74 | 2015 | .ndo_change_mtu = rocker_port_change_mtu, |
85fdb956 | 2016 | .ndo_bridge_getlink = switchdev_port_bridge_getlink, |
fc8f40d8 | 2017 | .ndo_bridge_setlink = switchdev_port_bridge_setlink, |
54ba5a0b | 2018 | .ndo_bridge_dellink = switchdev_port_bridge_dellink, |
45d4122c SS |
2019 | .ndo_fdb_add = switchdev_port_fdb_add, |
2020 | .ndo_fdb_del = switchdev_port_fdb_del, | |
2021 | .ndo_fdb_dump = switchdev_port_fdb_dump, | |
db19170b | 2022 | .ndo_get_phys_port_name = rocker_port_get_phys_port_name, |
c3055246 | 2023 | .ndo_change_proto_down = rocker_port_change_proto_down, |
dd19f83d | 2024 | .ndo_neigh_destroy = rocker_port_neigh_destroy, |
98237d43 SF |
2025 | }; |
2026 | ||
2027 | /******************** | |
2028 | * swdev interface | |
2029 | ********************/ | |
2030 | ||
f8e20a9f SF |
2031 | static int rocker_port_attr_get(struct net_device *dev, |
2032 | struct switchdev_attr *attr) | |
4b8ac966 | 2033 | { |
e5054643 SH |
2034 | const struct rocker_port *rocker_port = netdev_priv(dev); |
2035 | const struct rocker *rocker = rocker_port->rocker; | |
e420114e | 2036 | int err = 0; |
4b8ac966 | 2037 | |
f8e20a9f | 2038 | switch (attr->id) { |
1f868398 | 2039 | case SWITCHDEV_ATTR_ID_PORT_PARENT_ID: |
42275bd8 SF |
2040 | attr->u.ppid.id_len = sizeof(rocker->hw.id); |
2041 | memcpy(&attr->u.ppid.id, &rocker->hw.id, attr->u.ppid.id_len); | |
f8e20a9f | 2042 | break; |
1f868398 | 2043 | case SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS: |
e420114e JP |
2044 | err = rocker_world_port_attr_bridge_flags_get(rocker_port, |
2045 | &attr->u.brport_flags); | |
6004c867 | 2046 | break; |
f8e20a9f SF |
2047 | default: |
2048 | return -EOPNOTSUPP; | |
2049 | } | |
2050 | ||
e420114e | 2051 | return err; |
4b8ac966 JP |
2052 | } |
2053 | ||
c4f20321 | 2054 | static int rocker_port_attr_set(struct net_device *dev, |
f7fadf30 | 2055 | const struct switchdev_attr *attr, |
7ea6eb3f | 2056 | struct switchdev_trans *trans) |
c4f20321 SF |
2057 | { |
2058 | struct rocker_port *rocker_port = netdev_priv(dev); | |
2059 | int err = 0; | |
2060 | ||
c4f20321 | 2061 | switch (attr->id) { |
1f868398 | 2062 | case SWITCHDEV_ATTR_ID_PORT_STP_STATE: |
e420114e JP |
2063 | err = rocker_world_port_attr_stp_state_set(rocker_port, |
2064 | attr->u.stp_state, | |
2065 | trans); | |
35636062 | 2066 | break; |
1f868398 | 2067 | case SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS: |
e420114e JP |
2068 | err = rocker_world_port_attr_bridge_flags_set(rocker_port, |
2069 | attr->u.brport_flags, | |
2070 | trans); | |
6004c867 | 2071 | break; |
d0cf57f9 | 2072 | case SWITCHDEV_ATTR_ID_BRIDGE_AGEING_TIME: |
e420114e JP |
2073 | err = rocker_world_port_attr_bridge_ageing_time_set(rocker_port, |
2074 | attr->u.ageing_time, | |
2075 | trans); | |
d0cf57f9 | 2076 | break; |
c4f20321 SF |
2077 | default: |
2078 | err = -EOPNOTSUPP; | |
2079 | break; | |
2080 | } | |
2081 | ||
2082 | return err; | |
6c707945 SF |
2083 | } |
2084 | ||
9228ad26 | 2085 | static int rocker_port_obj_add(struct net_device *dev, |
648b4a99 | 2086 | const struct switchdev_obj *obj, |
7ea6eb3f | 2087 | struct switchdev_trans *trans) |
9228ad26 SF |
2088 | { |
2089 | struct rocker_port *rocker_port = netdev_priv(dev); | |
2090 | int err = 0; | |
2091 | ||
9e8f4a54 | 2092 | switch (obj->id) { |
57d80838 | 2093 | case SWITCHDEV_OBJ_ID_PORT_VLAN: |
e420114e JP |
2094 | err = rocker_world_port_obj_vlan_add(rocker_port, |
2095 | SWITCHDEV_OBJ_PORT_VLAN(obj), | |
2096 | trans); | |
9228ad26 | 2097 | break; |
57d80838 | 2098 | case SWITCHDEV_OBJ_ID_IPV4_FIB: |
e420114e JP |
2099 | err = rocker_world_port_obj_fib4_add(rocker_port, |
2100 | SWITCHDEV_OBJ_IPV4_FIB(obj), | |
2101 | trans); | |
58c2cb16 | 2102 | break; |
57d80838 | 2103 | case SWITCHDEV_OBJ_ID_PORT_FDB: |
e420114e JP |
2104 | err = rocker_world_port_obj_fdb_add(rocker_port, |
2105 | SWITCHDEV_OBJ_PORT_FDB(obj), | |
2106 | trans); | |
45d4122c | 2107 | break; |
9228ad26 SF |
2108 | default: |
2109 | err = -EOPNOTSUPP; | |
2110 | break; | |
2111 | } | |
2112 | ||
2113 | return err; | |
2114 | } | |
2115 | ||
9228ad26 | 2116 | static int rocker_port_obj_del(struct net_device *dev, |
648b4a99 | 2117 | const struct switchdev_obj *obj) |
9228ad26 SF |
2118 | { |
2119 | struct rocker_port *rocker_port = netdev_priv(dev); | |
2120 | int err = 0; | |
2121 | ||
9e8f4a54 | 2122 | switch (obj->id) { |
57d80838 | 2123 | case SWITCHDEV_OBJ_ID_PORT_VLAN: |
e420114e JP |
2124 | err = rocker_world_port_obj_vlan_del(rocker_port, |
2125 | SWITCHDEV_OBJ_PORT_VLAN(obj)); | |
9228ad26 | 2126 | break; |
57d80838 | 2127 | case SWITCHDEV_OBJ_ID_IPV4_FIB: |
e420114e JP |
2128 | err = rocker_world_port_obj_fib4_del(rocker_port, |
2129 | SWITCHDEV_OBJ_IPV4_FIB(obj)); | |
58c2cb16 | 2130 | break; |
57d80838 | 2131 | case SWITCHDEV_OBJ_ID_PORT_FDB: |
e420114e JP |
2132 | err = rocker_world_port_obj_fdb_del(rocker_port, |
2133 | SWITCHDEV_OBJ_PORT_FDB(obj)); | |
45d4122c SS |
2134 | break; |
2135 | default: | |
2136 | err = -EOPNOTSUPP; | |
2137 | break; | |
2138 | } | |
2139 | ||
2140 | return err; | |
2141 | } | |
2142 | ||
45d4122c | 2143 | static int rocker_port_obj_dump(struct net_device *dev, |
648b4a99 JP |
2144 | struct switchdev_obj *obj, |
2145 | switchdev_obj_dump_cb_t *cb) | |
45d4122c | 2146 | { |
e5054643 | 2147 | const struct rocker_port *rocker_port = netdev_priv(dev); |
45d4122c SS |
2148 | int err = 0; |
2149 | ||
9e8f4a54 | 2150 | switch (obj->id) { |
57d80838 | 2151 | case SWITCHDEV_OBJ_ID_PORT_FDB: |
e420114e JP |
2152 | err = rocker_world_port_obj_fdb_dump(rocker_port, |
2153 | SWITCHDEV_OBJ_PORT_FDB(obj), | |
2154 | cb); | |
45d4122c | 2155 | break; |
57d80838 | 2156 | case SWITCHDEV_OBJ_ID_PORT_VLAN: |
e420114e JP |
2157 | err = rocker_world_port_obj_vlan_dump(rocker_port, |
2158 | SWITCHDEV_OBJ_PORT_VLAN(obj), | |
2159 | cb); | |
7d4f8d87 | 2160 | break; |
9228ad26 SF |
2161 | default: |
2162 | err = -EOPNOTSUPP; | |
2163 | break; | |
2164 | } | |
2165 | ||
2166 | return err; | |
2167 | } | |
2168 | ||
9d47c0a2 | 2169 | static const struct switchdev_ops rocker_port_switchdev_ops = { |
f8e20a9f | 2170 | .switchdev_port_attr_get = rocker_port_attr_get, |
35636062 | 2171 | .switchdev_port_attr_set = rocker_port_attr_set, |
9228ad26 SF |
2172 | .switchdev_port_obj_add = rocker_port_obj_add, |
2173 | .switchdev_port_obj_del = rocker_port_obj_del, | |
45d4122c | 2174 | .switchdev_port_obj_dump = rocker_port_obj_dump, |
4b8ac966 JP |
2175 | }; |
2176 | ||
2177 | /******************** | |
2178 | * ethtool interface | |
2179 | ********************/ | |
2180 | ||
2181 | static int rocker_port_get_settings(struct net_device *dev, | |
2182 | struct ethtool_cmd *ecmd) | |
2183 | { | |
2184 | struct rocker_port *rocker_port = netdev_priv(dev); | |
2185 | ||
2186 | return rocker_cmd_get_port_settings_ethtool(rocker_port, ecmd); | |
2187 | } | |
2188 | ||
2189 | static int rocker_port_set_settings(struct net_device *dev, | |
2190 | struct ethtool_cmd *ecmd) | |
2191 | { | |
2192 | struct rocker_port *rocker_port = netdev_priv(dev); | |
2193 | ||
2194 | return rocker_cmd_set_port_settings_ethtool(rocker_port, ecmd); | |
2195 | } | |
2196 | ||
2197 | static void rocker_port_get_drvinfo(struct net_device *dev, | |
2198 | struct ethtool_drvinfo *drvinfo) | |
2199 | { | |
2200 | strlcpy(drvinfo->driver, rocker_driver_name, sizeof(drvinfo->driver)); | |
2201 | strlcpy(drvinfo->version, UTS_RELEASE, sizeof(drvinfo->version)); | |
2202 | } | |
2203 | ||
9766e97a DA |
2204 | static struct rocker_port_stats { |
2205 | char str[ETH_GSTRING_LEN]; | |
2206 | int type; | |
2207 | } rocker_port_stats[] = { | |
2208 | { "rx_packets", ROCKER_TLV_CMD_PORT_STATS_RX_PKTS, }, | |
2209 | { "rx_bytes", ROCKER_TLV_CMD_PORT_STATS_RX_BYTES, }, | |
2210 | { "rx_dropped", ROCKER_TLV_CMD_PORT_STATS_RX_DROPPED, }, | |
2211 | { "rx_errors", ROCKER_TLV_CMD_PORT_STATS_RX_ERRORS, }, | |
2212 | ||
2213 | { "tx_packets", ROCKER_TLV_CMD_PORT_STATS_TX_PKTS, }, | |
2214 | { "tx_bytes", ROCKER_TLV_CMD_PORT_STATS_TX_BYTES, }, | |
2215 | { "tx_dropped", ROCKER_TLV_CMD_PORT_STATS_TX_DROPPED, }, | |
2216 | { "tx_errors", ROCKER_TLV_CMD_PORT_STATS_TX_ERRORS, }, | |
2217 | }; | |
2218 | ||
2219 | #define ROCKER_PORT_STATS_LEN ARRAY_SIZE(rocker_port_stats) | |
2220 | ||
2221 | static void rocker_port_get_strings(struct net_device *netdev, u32 stringset, | |
2222 | u8 *data) | |
2223 | { | |
2224 | u8 *p = data; | |
2225 | int i; | |
2226 | ||
2227 | switch (stringset) { | |
2228 | case ETH_SS_STATS: | |
2229 | for (i = 0; i < ARRAY_SIZE(rocker_port_stats); i++) { | |
2230 | memcpy(p, rocker_port_stats[i].str, ETH_GSTRING_LEN); | |
2231 | p += ETH_GSTRING_LEN; | |
2232 | } | |
2233 | break; | |
2234 | } | |
2235 | } | |
2236 | ||
2237 | static int | |
534ba6a8 | 2238 | rocker_cmd_get_port_stats_prep(const struct rocker_port *rocker_port, |
9766e97a DA |
2239 | struct rocker_desc_info *desc_info, |
2240 | void *priv) | |
2241 | { | |
2242 | struct rocker_tlv *cmd_stats; | |
2243 | ||
2244 | if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE, | |
2245 | ROCKER_TLV_CMD_TYPE_GET_PORT_STATS)) | |
2246 | return -EMSGSIZE; | |
2247 | ||
2248 | cmd_stats = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO); | |
2249 | if (!cmd_stats) | |
2250 | return -EMSGSIZE; | |
2251 | ||
4a6bb6d3 SF |
2252 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_CMD_PORT_STATS_PPORT, |
2253 | rocker_port->pport)) | |
9766e97a DA |
2254 | return -EMSGSIZE; |
2255 | ||
2256 | rocker_tlv_nest_end(desc_info, cmd_stats); | |
2257 | ||
2258 | return 0; | |
2259 | } | |
2260 | ||
2261 | static int | |
534ba6a8 | 2262 | rocker_cmd_get_port_stats_ethtool_proc(const struct rocker_port *rocker_port, |
e5054643 | 2263 | const struct rocker_desc_info *desc_info, |
9766e97a DA |
2264 | void *priv) |
2265 | { | |
e5054643 SH |
2266 | const struct rocker_tlv *attrs[ROCKER_TLV_CMD_MAX + 1]; |
2267 | const struct rocker_tlv *stats_attrs[ROCKER_TLV_CMD_PORT_STATS_MAX + 1]; | |
2268 | const struct rocker_tlv *pattr; | |
4a6bb6d3 | 2269 | u32 pport; |
9766e97a DA |
2270 | u64 *data = priv; |
2271 | int i; | |
2272 | ||
2273 | rocker_tlv_parse_desc(attrs, ROCKER_TLV_CMD_MAX, desc_info); | |
2274 | ||
2275 | if (!attrs[ROCKER_TLV_CMD_INFO]) | |
2276 | return -EIO; | |
2277 | ||
2278 | rocker_tlv_parse_nested(stats_attrs, ROCKER_TLV_CMD_PORT_STATS_MAX, | |
2279 | attrs[ROCKER_TLV_CMD_INFO]); | |
2280 | ||
4a6bb6d3 | 2281 | if (!stats_attrs[ROCKER_TLV_CMD_PORT_STATS_PPORT]) |
9766e97a DA |
2282 | return -EIO; |
2283 | ||
4a6bb6d3 SF |
2284 | pport = rocker_tlv_get_u32(stats_attrs[ROCKER_TLV_CMD_PORT_STATS_PPORT]); |
2285 | if (pport != rocker_port->pport) | |
9766e97a DA |
2286 | return -EIO; |
2287 | ||
2288 | for (i = 0; i < ARRAY_SIZE(rocker_port_stats); i++) { | |
2289 | pattr = stats_attrs[rocker_port_stats[i].type]; | |
2290 | if (!pattr) | |
2291 | continue; | |
2292 | ||
2293 | data[i] = rocker_tlv_get_u64(pattr); | |
2294 | } | |
2295 | ||
2296 | return 0; | |
2297 | } | |
2298 | ||
2299 | static int rocker_cmd_get_port_stats_ethtool(struct rocker_port *rocker_port, | |
2300 | void *priv) | |
2301 | { | |
53901cc0 | 2302 | return rocker_cmd_exec(rocker_port, false, |
9766e97a DA |
2303 | rocker_cmd_get_port_stats_prep, NULL, |
2304 | rocker_cmd_get_port_stats_ethtool_proc, | |
c4f20321 | 2305 | priv); |
9766e97a DA |
2306 | } |
2307 | ||
2308 | static void rocker_port_get_stats(struct net_device *dev, | |
2309 | struct ethtool_stats *stats, u64 *data) | |
2310 | { | |
2311 | struct rocker_port *rocker_port = netdev_priv(dev); | |
2312 | ||
2313 | if (rocker_cmd_get_port_stats_ethtool(rocker_port, data) != 0) { | |
2314 | int i; | |
2315 | ||
2316 | for (i = 0; i < ARRAY_SIZE(rocker_port_stats); ++i) | |
2317 | data[i] = 0; | |
2318 | } | |
9766e97a DA |
2319 | } |
2320 | ||
2321 | static int rocker_port_get_sset_count(struct net_device *netdev, int sset) | |
2322 | { | |
2323 | switch (sset) { | |
2324 | case ETH_SS_STATS: | |
2325 | return ROCKER_PORT_STATS_LEN; | |
2326 | default: | |
2327 | return -EOPNOTSUPP; | |
2328 | } | |
2329 | } | |
2330 | ||
4b8ac966 JP |
2331 | static const struct ethtool_ops rocker_port_ethtool_ops = { |
2332 | .get_settings = rocker_port_get_settings, | |
2333 | .set_settings = rocker_port_set_settings, | |
2334 | .get_drvinfo = rocker_port_get_drvinfo, | |
2335 | .get_link = ethtool_op_get_link, | |
9766e97a DA |
2336 | .get_strings = rocker_port_get_strings, |
2337 | .get_ethtool_stats = rocker_port_get_stats, | |
2338 | .get_sset_count = rocker_port_get_sset_count, | |
4b8ac966 JP |
2339 | }; |
2340 | ||
2341 | /***************** | |
2342 | * NAPI interface | |
2343 | *****************/ | |
2344 | ||
2345 | static struct rocker_port *rocker_port_napi_tx_get(struct napi_struct *napi) | |
2346 | { | |
2347 | return container_of(napi, struct rocker_port, napi_tx); | |
2348 | } | |
2349 | ||
2350 | static int rocker_port_poll_tx(struct napi_struct *napi, int budget) | |
2351 | { | |
2352 | struct rocker_port *rocker_port = rocker_port_napi_tx_get(napi); | |
e5054643 SH |
2353 | const struct rocker *rocker = rocker_port->rocker; |
2354 | const struct rocker_desc_info *desc_info; | |
4b8ac966 JP |
2355 | u32 credits = 0; |
2356 | int err; | |
2357 | ||
2358 | /* Cleanup tx descriptors */ | |
2359 | while ((desc_info = rocker_desc_tail_get(&rocker_port->tx_ring))) { | |
f2bbca51 DA |
2360 | struct sk_buff *skb; |
2361 | ||
4b8ac966 JP |
2362 | err = rocker_desc_err(desc_info); |
2363 | if (err && net_ratelimit()) | |
2364 | netdev_err(rocker_port->dev, "tx desc received with err %d\n", | |
2365 | err); | |
2366 | rocker_tx_desc_frags_unmap(rocker_port, desc_info); | |
f2bbca51 DA |
2367 | |
2368 | skb = rocker_desc_cookie_ptr_get(desc_info); | |
2369 | if (err == 0) { | |
2370 | rocker_port->dev->stats.tx_packets++; | |
2371 | rocker_port->dev->stats.tx_bytes += skb->len; | |
4725ceb9 | 2372 | } else { |
f2bbca51 | 2373 | rocker_port->dev->stats.tx_errors++; |
4725ceb9 | 2374 | } |
f2bbca51 DA |
2375 | |
2376 | dev_kfree_skb_any(skb); | |
4b8ac966 JP |
2377 | credits++; |
2378 | } | |
2379 | ||
2380 | if (credits && netif_queue_stopped(rocker_port->dev)) | |
2381 | netif_wake_queue(rocker_port->dev); | |
2382 | ||
2383 | napi_complete(napi); | |
2384 | rocker_dma_ring_credits_set(rocker, &rocker_port->tx_ring, credits); | |
2385 | ||
2386 | return 0; | |
2387 | } | |
2388 | ||
e5054643 SH |
2389 | static int rocker_port_rx_proc(const struct rocker *rocker, |
2390 | const struct rocker_port *rocker_port, | |
4b8ac966 JP |
2391 | struct rocker_desc_info *desc_info) |
2392 | { | |
e5054643 | 2393 | const struct rocker_tlv *attrs[ROCKER_TLV_RX_MAX + 1]; |
4b8ac966 JP |
2394 | struct sk_buff *skb = rocker_desc_cookie_ptr_get(desc_info); |
2395 | size_t rx_len; | |
3f98a8e6 | 2396 | u16 rx_flags = 0; |
4b8ac966 JP |
2397 | |
2398 | if (!skb) | |
2399 | return -ENOENT; | |
2400 | ||
2401 | rocker_tlv_parse_desc(attrs, ROCKER_TLV_RX_MAX, desc_info); | |
2402 | if (!attrs[ROCKER_TLV_RX_FRAG_LEN]) | |
2403 | return -EINVAL; | |
3f98a8e6 SF |
2404 | if (attrs[ROCKER_TLV_RX_FLAGS]) |
2405 | rx_flags = rocker_tlv_get_u16(attrs[ROCKER_TLV_RX_FLAGS]); | |
4b8ac966 JP |
2406 | |
2407 | rocker_dma_rx_ring_skb_unmap(rocker, attrs); | |
2408 | ||
2409 | rx_len = rocker_tlv_get_u16(attrs[ROCKER_TLV_RX_FRAG_LEN]); | |
2410 | skb_put(skb, rx_len); | |
2411 | skb->protocol = eth_type_trans(skb, rocker_port->dev); | |
f2bbca51 | 2412 | |
3f98a8e6 SF |
2413 | if (rx_flags & ROCKER_RX_FLAGS_FWD_OFFLOAD) |
2414 | skb->offload_fwd_mark = rocker_port->dev->offload_fwd_mark; | |
2415 | ||
f2bbca51 DA |
2416 | rocker_port->dev->stats.rx_packets++; |
2417 | rocker_port->dev->stats.rx_bytes += skb->len; | |
2418 | ||
4b8ac966 JP |
2419 | netif_receive_skb(skb); |
2420 | ||
534ba6a8 | 2421 | return rocker_dma_rx_ring_skb_alloc(rocker_port, desc_info); |
4b8ac966 JP |
2422 | } |
2423 | ||
2424 | static struct rocker_port *rocker_port_napi_rx_get(struct napi_struct *napi) | |
2425 | { | |
2426 | return container_of(napi, struct rocker_port, napi_rx); | |
2427 | } | |
2428 | ||
2429 | static int rocker_port_poll_rx(struct napi_struct *napi, int budget) | |
2430 | { | |
2431 | struct rocker_port *rocker_port = rocker_port_napi_rx_get(napi); | |
e5054643 | 2432 | const struct rocker *rocker = rocker_port->rocker; |
4b8ac966 JP |
2433 | struct rocker_desc_info *desc_info; |
2434 | u32 credits = 0; | |
2435 | int err; | |
2436 | ||
2437 | /* Process rx descriptors */ | |
2438 | while (credits < budget && | |
2439 | (desc_info = rocker_desc_tail_get(&rocker_port->rx_ring))) { | |
2440 | err = rocker_desc_err(desc_info); | |
2441 | if (err) { | |
2442 | if (net_ratelimit()) | |
2443 | netdev_err(rocker_port->dev, "rx desc received with err %d\n", | |
2444 | err); | |
2445 | } else { | |
2446 | err = rocker_port_rx_proc(rocker, rocker_port, | |
2447 | desc_info); | |
2448 | if (err && net_ratelimit()) | |
2449 | netdev_err(rocker_port->dev, "rx processing failed with err %d\n", | |
2450 | err); | |
2451 | } | |
f2bbca51 DA |
2452 | if (err) |
2453 | rocker_port->dev->stats.rx_errors++; | |
2454 | ||
4b8ac966 JP |
2455 | rocker_desc_gen_clear(desc_info); |
2456 | rocker_desc_head_set(rocker, &rocker_port->rx_ring, desc_info); | |
2457 | credits++; | |
2458 | } | |
2459 | ||
2460 | if (credits < budget) | |
2461 | napi_complete(napi); | |
2462 | ||
2463 | rocker_dma_ring_credits_set(rocker, &rocker_port->rx_ring, credits); | |
2464 | ||
2465 | return credits; | |
2466 | } | |
2467 | ||
2468 | /***************** | |
2469 | * PCI driver ops | |
2470 | *****************/ | |
2471 | ||
e5054643 | 2472 | static void rocker_carrier_init(const struct rocker_port *rocker_port) |
4b8ac966 | 2473 | { |
e5054643 | 2474 | const struct rocker *rocker = rocker_port->rocker; |
4b8ac966 JP |
2475 | u64 link_status = rocker_read64(rocker, PORT_PHYS_LINK_STATUS); |
2476 | bool link_up; | |
2477 | ||
4a6bb6d3 | 2478 | link_up = link_status & (1 << rocker_port->pport); |
4b8ac966 JP |
2479 | if (link_up) |
2480 | netif_carrier_on(rocker_port->dev); | |
2481 | else | |
2482 | netif_carrier_off(rocker_port->dev); | |
2483 | } | |
2484 | ||
e420114e | 2485 | static void rocker_remove_ports(struct rocker *rocker) |
4b8ac966 | 2486 | { |
9f6bbf7c | 2487 | struct rocker_port *rocker_port; |
4b8ac966 JP |
2488 | int i; |
2489 | ||
9f6bbf7c SF |
2490 | for (i = 0; i < rocker->port_count; i++) { |
2491 | rocker_port = rocker->ports[i]; | |
a0720310 SF |
2492 | if (!rocker_port) |
2493 | continue; | |
e420114e | 2494 | rocker_world_port_fini(rocker_port); |
9f6bbf7c | 2495 | unregister_netdev(rocker_port->dev); |
e420114e | 2496 | rocker_world_port_post_fini(rocker_port); |
1ebd47ef | 2497 | free_netdev(rocker_port->dev); |
9f6bbf7c | 2498 | } |
e420114e | 2499 | rocker_world_fini(rocker); |
4b8ac966 JP |
2500 | kfree(rocker->ports); |
2501 | } | |
2502 | ||
534ba6a8 | 2503 | static void rocker_port_dev_addr_init(struct rocker_port *rocker_port) |
4b8ac966 | 2504 | { |
534ba6a8 | 2505 | const struct rocker *rocker = rocker_port->rocker; |
e5054643 | 2506 | const struct pci_dev *pdev = rocker->pdev; |
4b8ac966 JP |
2507 | int err; |
2508 | ||
2509 | err = rocker_cmd_get_port_settings_macaddr(rocker_port, | |
2510 | rocker_port->dev->dev_addr); | |
2511 | if (err) { | |
2512 | dev_warn(&pdev->dev, "failed to get mac address, using random\n"); | |
2513 | eth_hw_addr_random(rocker_port->dev); | |
2514 | } | |
2515 | } | |
2516 | ||
2517 | static int rocker_probe_port(struct rocker *rocker, unsigned int port_number) | |
2518 | { | |
e5054643 | 2519 | const struct pci_dev *pdev = rocker->pdev; |
4b8ac966 JP |
2520 | struct rocker_port *rocker_port; |
2521 | struct net_device *dev; | |
2522 | int err; | |
2523 | ||
2524 | dev = alloc_etherdev(sizeof(struct rocker_port)); | |
2525 | if (!dev) | |
2526 | return -ENOMEM; | |
2527 | rocker_port = netdev_priv(dev); | |
2528 | rocker_port->dev = dev; | |
2529 | rocker_port->rocker = rocker; | |
2530 | rocker_port->port_number = port_number; | |
4a6bb6d3 | 2531 | rocker_port->pport = port_number + 1; |
4b8ac966 | 2532 | |
e420114e JP |
2533 | err = rocker_world_check_init(rocker_port); |
2534 | if (err) { | |
2535 | dev_err(&pdev->dev, "world init failed\n"); | |
2536 | goto err_world_check_init; | |
2537 | } | |
2538 | ||
534ba6a8 | 2539 | rocker_port_dev_addr_init(rocker_port); |
4b8ac966 JP |
2540 | dev->netdev_ops = &rocker_port_netdev_ops; |
2541 | dev->ethtool_ops = &rocker_port_ethtool_ops; | |
9d47c0a2 | 2542 | dev->switchdev_ops = &rocker_port_switchdev_ops; |
d64b5e85 | 2543 | netif_tx_napi_add(dev, &rocker_port->napi_tx, rocker_port_poll_tx, |
11ce2ba3 | 2544 | NAPI_POLL_WEIGHT); |
4b8ac966 JP |
2545 | netif_napi_add(dev, &rocker_port->napi_rx, rocker_port_poll_rx, |
2546 | NAPI_POLL_WEIGHT); | |
2547 | rocker_carrier_init(rocker_port); | |
2548 | ||
21518a6e | 2549 | dev->features |= NETIF_F_NETNS_LOCAL | NETIF_F_SG; |
4b8ac966 | 2550 | |
e420114e JP |
2551 | err = rocker_world_port_pre_init(rocker_port); |
2552 | if (err) { | |
2553 | dev_err(&pdev->dev, "port world pre-init failed\n"); | |
2554 | goto err_world_port_pre_init; | |
2555 | } | |
4b8ac966 JP |
2556 | err = register_netdev(dev); |
2557 | if (err) { | |
2558 | dev_err(&pdev->dev, "register_netdev failed\n"); | |
2559 | goto err_register_netdev; | |
2560 | } | |
2561 | rocker->ports[port_number] = rocker_port; | |
2562 | ||
e420114e JP |
2563 | err = rocker_world_port_init(rocker_port); |
2564 | if (err) { | |
2565 | dev_err(&pdev->dev, "port world init failed\n"); | |
2566 | goto err_world_port_init; | |
2567 | } | |
2568 | ||
4b8ac966 JP |
2569 | return 0; |
2570 | ||
e420114e | 2571 | err_world_port_init: |
6c4f7780 | 2572 | rocker->ports[port_number] = NULL; |
9f6bbf7c | 2573 | unregister_netdev(dev); |
4b8ac966 | 2574 | err_register_netdev: |
e420114e JP |
2575 | rocker_world_port_post_fini(rocker_port); |
2576 | err_world_port_pre_init: | |
2577 | err_world_check_init: | |
4b8ac966 JP |
2578 | free_netdev(dev); |
2579 | return err; | |
2580 | } | |
2581 | ||
2582 | static int rocker_probe_ports(struct rocker *rocker) | |
2583 | { | |
2584 | int i; | |
2585 | size_t alloc_size; | |
2586 | int err; | |
2587 | ||
2588 | alloc_size = sizeof(struct rocker_port *) * rocker->port_count; | |
27b808cb | 2589 | rocker->ports = kzalloc(alloc_size, GFP_KERNEL); |
e65ad3be DC |
2590 | if (!rocker->ports) |
2591 | return -ENOMEM; | |
4b8ac966 JP |
2592 | for (i = 0; i < rocker->port_count; i++) { |
2593 | err = rocker_probe_port(rocker, i); | |
2594 | if (err) | |
2595 | goto remove_ports; | |
2596 | } | |
2597 | return 0; | |
2598 | ||
2599 | remove_ports: | |
2600 | rocker_remove_ports(rocker); | |
2601 | return err; | |
2602 | } | |
2603 | ||
2604 | static int rocker_msix_init(struct rocker *rocker) | |
2605 | { | |
2606 | struct pci_dev *pdev = rocker->pdev; | |
2607 | int msix_entries; | |
2608 | int i; | |
2609 | int err; | |
2610 | ||
2611 | msix_entries = pci_msix_vec_count(pdev); | |
2612 | if (msix_entries < 0) | |
2613 | return msix_entries; | |
2614 | ||
2615 | if (msix_entries != ROCKER_MSIX_VEC_COUNT(rocker->port_count)) | |
2616 | return -EINVAL; | |
2617 | ||
2618 | rocker->msix_entries = kmalloc_array(msix_entries, | |
2619 | sizeof(struct msix_entry), | |
2620 | GFP_KERNEL); | |
2621 | if (!rocker->msix_entries) | |
2622 | return -ENOMEM; | |
2623 | ||
2624 | for (i = 0; i < msix_entries; i++) | |
2625 | rocker->msix_entries[i].entry = i; | |
2626 | ||
2627 | err = pci_enable_msix_exact(pdev, rocker->msix_entries, msix_entries); | |
2628 | if (err < 0) | |
2629 | goto err_enable_msix; | |
2630 | ||
2631 | return 0; | |
2632 | ||
2633 | err_enable_msix: | |
2634 | kfree(rocker->msix_entries); | |
2635 | return err; | |
2636 | } | |
2637 | ||
e5054643 | 2638 | static void rocker_msix_fini(const struct rocker *rocker) |
4b8ac966 JP |
2639 | { |
2640 | pci_disable_msix(rocker->pdev); | |
2641 | kfree(rocker->msix_entries); | |
2642 | } | |
2643 | ||
2644 | static int rocker_probe(struct pci_dev *pdev, const struct pci_device_id *id) | |
2645 | { | |
2646 | struct rocker *rocker; | |
2647 | int err; | |
2648 | ||
2649 | rocker = kzalloc(sizeof(*rocker), GFP_KERNEL); | |
2650 | if (!rocker) | |
2651 | return -ENOMEM; | |
2652 | ||
2653 | err = pci_enable_device(pdev); | |
2654 | if (err) { | |
2655 | dev_err(&pdev->dev, "pci_enable_device failed\n"); | |
2656 | goto err_pci_enable_device; | |
2657 | } | |
2658 | ||
2659 | err = pci_request_regions(pdev, rocker_driver_name); | |
2660 | if (err) { | |
2661 | dev_err(&pdev->dev, "pci_request_regions failed\n"); | |
2662 | goto err_pci_request_regions; | |
2663 | } | |
2664 | ||
2665 | err = pci_set_dma_mask(pdev, DMA_BIT_MASK(64)); | |
2666 | if (!err) { | |
2667 | err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)); | |
2668 | if (err) { | |
2669 | dev_err(&pdev->dev, "pci_set_consistent_dma_mask failed\n"); | |
2670 | goto err_pci_set_dma_mask; | |
2671 | } | |
2672 | } else { | |
2673 | err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); | |
2674 | if (err) { | |
2675 | dev_err(&pdev->dev, "pci_set_dma_mask failed\n"); | |
2676 | goto err_pci_set_dma_mask; | |
2677 | } | |
2678 | } | |
2679 | ||
2680 | if (pci_resource_len(pdev, 0) < ROCKER_PCI_BAR0_SIZE) { | |
2681 | dev_err(&pdev->dev, "invalid PCI region size\n"); | |
3122a92e | 2682 | err = -EINVAL; |
4b8ac966 JP |
2683 | goto err_pci_resource_len_check; |
2684 | } | |
2685 | ||
2686 | rocker->hw_addr = ioremap(pci_resource_start(pdev, 0), | |
2687 | pci_resource_len(pdev, 0)); | |
2688 | if (!rocker->hw_addr) { | |
2689 | dev_err(&pdev->dev, "ioremap failed\n"); | |
2690 | err = -EIO; | |
2691 | goto err_ioremap; | |
2692 | } | |
2693 | pci_set_master(pdev); | |
2694 | ||
2695 | rocker->pdev = pdev; | |
2696 | pci_set_drvdata(pdev, rocker); | |
2697 | ||
2698 | rocker->port_count = rocker_read32(rocker, PORT_PHYS_COUNT); | |
2699 | ||
2700 | err = rocker_msix_init(rocker); | |
2701 | if (err) { | |
2702 | dev_err(&pdev->dev, "MSI-X init failed\n"); | |
2703 | goto err_msix_init; | |
2704 | } | |
2705 | ||
2706 | err = rocker_basic_hw_test(rocker); | |
2707 | if (err) { | |
2708 | dev_err(&pdev->dev, "basic hw test failed\n"); | |
2709 | goto err_basic_hw_test; | |
2710 | } | |
2711 | ||
2712 | rocker_write32(rocker, CONTROL, ROCKER_CONTROL_RESET); | |
2713 | ||
2714 | err = rocker_dma_rings_init(rocker); | |
2715 | if (err) | |
2716 | goto err_dma_rings_init; | |
2717 | ||
2718 | err = request_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_CMD), | |
2719 | rocker_cmd_irq_handler, 0, | |
2720 | rocker_driver_name, rocker); | |
2721 | if (err) { | |
2722 | dev_err(&pdev->dev, "cannot assign cmd irq\n"); | |
2723 | goto err_request_cmd_irq; | |
2724 | } | |
2725 | ||
2726 | err = request_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_EVENT), | |
2727 | rocker_event_irq_handler, 0, | |
2728 | rocker_driver_name, rocker); | |
2729 | if (err) { | |
2730 | dev_err(&pdev->dev, "cannot assign event irq\n"); | |
2731 | goto err_request_event_irq; | |
2732 | } | |
2733 | ||
2734 | rocker->hw.id = rocker_read64(rocker, SWITCH_ID); | |
2735 | ||
2736 | err = rocker_probe_ports(rocker); | |
2737 | if (err) { | |
2738 | dev_err(&pdev->dev, "failed to probe ports\n"); | |
2739 | goto err_probe_ports; | |
2740 | } | |
2741 | ||
c8beb5b2 SF |
2742 | dev_info(&pdev->dev, "Rocker switch with id %*phN\n", |
2743 | (int)sizeof(rocker->hw.id), &rocker->hw.id); | |
4b8ac966 JP |
2744 | |
2745 | return 0; | |
2746 | ||
2747 | err_probe_ports: | |
2748 | free_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_EVENT), rocker); | |
2749 | err_request_event_irq: | |
2750 | free_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_CMD), rocker); | |
2751 | err_request_cmd_irq: | |
2752 | rocker_dma_rings_fini(rocker); | |
2753 | err_dma_rings_init: | |
2754 | err_basic_hw_test: | |
2755 | rocker_msix_fini(rocker); | |
2756 | err_msix_init: | |
2757 | iounmap(rocker->hw_addr); | |
2758 | err_ioremap: | |
2759 | err_pci_resource_len_check: | |
2760 | err_pci_set_dma_mask: | |
2761 | pci_release_regions(pdev); | |
2762 | err_pci_request_regions: | |
2763 | pci_disable_device(pdev); | |
2764 | err_pci_enable_device: | |
2765 | kfree(rocker); | |
2766 | return err; | |
2767 | } | |
2768 | ||
2769 | static void rocker_remove(struct pci_dev *pdev) | |
2770 | { | |
2771 | struct rocker *rocker = pci_get_drvdata(pdev); | |
2772 | ||
2773 | rocker_write32(rocker, CONTROL, ROCKER_CONTROL_RESET); | |
2774 | rocker_remove_ports(rocker); | |
2775 | free_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_EVENT), rocker); | |
2776 | free_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_CMD), rocker); | |
2777 | rocker_dma_rings_fini(rocker); | |
2778 | rocker_msix_fini(rocker); | |
2779 | iounmap(rocker->hw_addr); | |
2780 | pci_release_regions(rocker->pdev); | |
2781 | pci_disable_device(rocker->pdev); | |
2782 | kfree(rocker); | |
2783 | } | |
2784 | ||
2785 | static struct pci_driver rocker_pci_driver = { | |
2786 | .name = rocker_driver_name, | |
2787 | .id_table = rocker_pci_id_table, | |
2788 | .probe = rocker_probe, | |
2789 | .remove = rocker_remove, | |
2790 | }; | |
2791 | ||
6c707945 SF |
2792 | /************************************ |
2793 | * Net device notifier event handler | |
2794 | ************************************/ | |
2795 | ||
e5054643 | 2796 | static bool rocker_port_dev_check(const struct net_device *dev) |
6c707945 SF |
2797 | { |
2798 | return dev->netdev_ops == &rocker_port_netdev_ops; | |
2799 | } | |
2800 | ||
6c707945 SF |
2801 | static int rocker_netdevice_event(struct notifier_block *unused, |
2802 | unsigned long event, void *ptr) | |
2803 | { | |
686ed304 JP |
2804 | struct net_device *dev = netdev_notifier_info_to_dev(ptr); |
2805 | struct netdev_notifier_changeupper_info *info; | |
2806 | struct rocker_port *rocker_port; | |
6c707945 SF |
2807 | int err; |
2808 | ||
686ed304 JP |
2809 | if (!rocker_port_dev_check(dev)) |
2810 | return NOTIFY_DONE; | |
2811 | ||
6c707945 SF |
2812 | switch (event) { |
2813 | case NETDEV_CHANGEUPPER: | |
686ed304 JP |
2814 | info = ptr; |
2815 | if (!info->master) | |
2816 | goto out; | |
2817 | rocker_port = netdev_priv(dev); | |
2818 | if (info->linking) { | |
e420114e JP |
2819 | err = rocker_world_port_master_linked(rocker_port, |
2820 | info->upper_dev); | |
2821 | if (err) | |
2822 | netdev_warn(dev, "failed to reflect master linked (err %d)\n", | |
2823 | err); | |
686ed304 | 2824 | } else { |
e420114e JP |
2825 | err = rocker_world_port_master_unlinked(rocker_port, |
2826 | info->upper_dev); | |
2827 | if (err) | |
2828 | netdev_warn(dev, "failed to reflect master unlinked (err %d)\n", | |
2829 | err); | |
686ed304 | 2830 | } |
6c707945 | 2831 | } |
686ed304 | 2832 | out: |
6c707945 SF |
2833 | return NOTIFY_DONE; |
2834 | } | |
2835 | ||
2836 | static struct notifier_block rocker_netdevice_nb __read_mostly = { | |
2837 | .notifier_call = rocker_netdevice_event, | |
2838 | }; | |
2839 | ||
c1beeef7 SF |
2840 | /************************************ |
2841 | * Net event notifier event handler | |
2842 | ************************************/ | |
2843 | ||
c1beeef7 SF |
2844 | static int rocker_netevent_event(struct notifier_block *unused, |
2845 | unsigned long event, void *ptr) | |
2846 | { | |
e420114e | 2847 | struct rocker_port *rocker_port; |
c1beeef7 SF |
2848 | struct net_device *dev; |
2849 | struct neighbour *n = ptr; | |
2850 | int err; | |
2851 | ||
2852 | switch (event) { | |
2853 | case NETEVENT_NEIGH_UPDATE: | |
2854 | if (n->tbl != &arp_tbl) | |
2855 | return NOTIFY_DONE; | |
2856 | dev = n->dev; | |
2857 | if (!rocker_port_dev_check(dev)) | |
2858 | return NOTIFY_DONE; | |
e420114e JP |
2859 | rocker_port = netdev_priv(dev); |
2860 | err = rocker_world_port_neigh_update(rocker_port, n); | |
2861 | if (err) | |
2862 | netdev_warn(dev, "failed to handle neigh update (err %d)\n", | |
2863 | err); | |
c1beeef7 SF |
2864 | break; |
2865 | } | |
2866 | ||
2867 | return NOTIFY_DONE; | |
2868 | } | |
2869 | ||
2870 | static struct notifier_block rocker_netevent_nb __read_mostly = { | |
2871 | .notifier_call = rocker_netevent_event, | |
2872 | }; | |
2873 | ||
4b8ac966 JP |
2874 | /*********************** |
2875 | * Module init and exit | |
2876 | ***********************/ | |
2877 | ||
2878 | static int __init rocker_module_init(void) | |
2879 | { | |
6c707945 SF |
2880 | int err; |
2881 | ||
2882 | register_netdevice_notifier(&rocker_netdevice_nb); | |
c1beeef7 | 2883 | register_netevent_notifier(&rocker_netevent_nb); |
6c707945 SF |
2884 | err = pci_register_driver(&rocker_pci_driver); |
2885 | if (err) | |
2886 | goto err_pci_register_driver; | |
2887 | return 0; | |
2888 | ||
2889 | err_pci_register_driver: | |
a076e6bf | 2890 | unregister_netevent_notifier(&rocker_netevent_nb); |
6c707945 SF |
2891 | unregister_netdevice_notifier(&rocker_netdevice_nb); |
2892 | return err; | |
4b8ac966 JP |
2893 | } |
2894 | ||
2895 | static void __exit rocker_module_exit(void) | |
2896 | { | |
c1beeef7 | 2897 | unregister_netevent_notifier(&rocker_netevent_nb); |
6c707945 | 2898 | unregister_netdevice_notifier(&rocker_netdevice_nb); |
4b8ac966 JP |
2899 | pci_unregister_driver(&rocker_pci_driver); |
2900 | } | |
2901 | ||
2902 | module_init(rocker_module_init); | |
2903 | module_exit(rocker_module_exit); | |
2904 | ||
2905 | MODULE_LICENSE("GPL v2"); | |
2906 | MODULE_AUTHOR("Jiri Pirko <jiri@resnulli.us>"); | |
2907 | MODULE_AUTHOR("Scott Feldman <sfeldma@gmail.com>"); | |
2908 | MODULE_DESCRIPTION("Rocker switch device driver"); | |
2909 | MODULE_DEVICE_TABLE(pci, rocker_pci_id_table); |