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01f2e4ea SF |
1 | /* |
2 | * Copyright 2008 Cisco Systems, Inc. All rights reserved. | |
3 | * Copyright 2007 Nuova Systems, Inc. All rights reserved. | |
4 | * | |
5 | * This program is free software; you may redistribute it and/or modify | |
6 | * it under the terms of the GNU General Public License as published by | |
7 | * the Free Software Foundation; version 2 of the License. | |
8 | * | |
9 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | |
10 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | |
11 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | |
12 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS | |
13 | * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN | |
14 | * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN | |
15 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
16 | * SOFTWARE. | |
17 | * | |
18 | */ | |
19 | ||
20 | #include <linux/kernel.h> | |
21 | #include <linux/errno.h> | |
22 | #include <linux/types.h> | |
23 | #include <linux/pci.h> | |
24 | #include <linux/delay.h> | |
25 | #include <linux/if_ether.h> | |
26 | ||
27 | #include "vnic_resource.h" | |
28 | #include "vnic_devcmd.h" | |
29 | #include "vnic_dev.h" | |
30 | #include "vnic_stats.h" | |
31 | ||
32 | struct vnic_res { | |
33 | void __iomem *vaddr; | |
34 | unsigned int count; | |
35 | }; | |
36 | ||
37 | struct vnic_dev { | |
38 | void *priv; | |
39 | struct pci_dev *pdev; | |
40 | struct vnic_res res[RES_TYPE_MAX]; | |
41 | enum vnic_dev_intr_mode intr_mode; | |
42 | struct vnic_devcmd __iomem *devcmd; | |
43 | struct vnic_devcmd_notify *notify; | |
44 | struct vnic_devcmd_notify notify_copy; | |
45 | dma_addr_t notify_pa; | |
46 | u32 *linkstatus; | |
47 | dma_addr_t linkstatus_pa; | |
48 | struct vnic_stats *stats; | |
49 | dma_addr_t stats_pa; | |
50 | struct vnic_devcmd_fw_info *fw_info; | |
51 | dma_addr_t fw_info_pa; | |
52 | }; | |
53 | ||
54 | #define VNIC_MAX_RES_HDR_SIZE \ | |
55 | (sizeof(struct vnic_resource_header) + \ | |
56 | sizeof(struct vnic_resource) * RES_TYPE_MAX) | |
57 | #define VNIC_RES_STRIDE 128 | |
58 | ||
59 | void *vnic_dev_priv(struct vnic_dev *vdev) | |
60 | { | |
61 | return vdev->priv; | |
62 | } | |
63 | ||
64 | static int vnic_dev_discover_res(struct vnic_dev *vdev, | |
65 | struct vnic_dev_bar *bar) | |
66 | { | |
67 | struct vnic_resource_header __iomem *rh; | |
68 | struct vnic_resource __iomem *r; | |
69 | u8 type; | |
70 | ||
71 | if (bar->len < VNIC_MAX_RES_HDR_SIZE) { | |
72 | printk(KERN_ERR "vNIC BAR0 res hdr length error\n"); | |
73 | return -EINVAL; | |
74 | } | |
75 | ||
76 | rh = bar->vaddr; | |
77 | if (!rh) { | |
78 | printk(KERN_ERR "vNIC BAR0 res hdr not mem-mapped\n"); | |
79 | return -EINVAL; | |
80 | } | |
81 | ||
82 | if (ioread32(&rh->magic) != VNIC_RES_MAGIC || | |
83 | ioread32(&rh->version) != VNIC_RES_VERSION) { | |
84 | printk(KERN_ERR "vNIC BAR0 res magic/version error " | |
85 | "exp (%lx/%lx) curr (%x/%x)\n", | |
86 | VNIC_RES_MAGIC, VNIC_RES_VERSION, | |
87 | ioread32(&rh->magic), ioread32(&rh->version)); | |
88 | return -EINVAL; | |
89 | } | |
90 | ||
91 | r = (struct vnic_resource __iomem *)(rh + 1); | |
92 | ||
93 | while ((type = ioread8(&r->type)) != RES_TYPE_EOL) { | |
94 | ||
95 | u8 bar_num = ioread8(&r->bar); | |
96 | u32 bar_offset = ioread32(&r->bar_offset); | |
97 | u32 count = ioread32(&r->count); | |
98 | u32 len; | |
99 | ||
100 | r++; | |
101 | ||
102 | if (bar_num != 0) /* only mapping in BAR0 resources */ | |
103 | continue; | |
104 | ||
105 | switch (type) { | |
106 | case RES_TYPE_WQ: | |
107 | case RES_TYPE_RQ: | |
108 | case RES_TYPE_CQ: | |
109 | case RES_TYPE_INTR_CTRL: | |
110 | /* each count is stride bytes long */ | |
111 | len = count * VNIC_RES_STRIDE; | |
112 | if (len + bar_offset > bar->len) { | |
113 | printk(KERN_ERR "vNIC BAR0 resource %d " | |
114 | "out-of-bounds, offset 0x%x + " | |
115 | "size 0x%x > bar len 0x%lx\n", | |
116 | type, bar_offset, | |
117 | len, | |
118 | bar->len); | |
119 | return -EINVAL; | |
120 | } | |
121 | break; | |
122 | case RES_TYPE_INTR_PBA_LEGACY: | |
123 | case RES_TYPE_DEVCMD: | |
124 | len = count; | |
125 | break; | |
126 | default: | |
127 | continue; | |
128 | } | |
129 | ||
130 | vdev->res[type].count = count; | |
131 | vdev->res[type].vaddr = (char __iomem *)bar->vaddr + bar_offset; | |
132 | } | |
133 | ||
134 | return 0; | |
135 | } | |
136 | ||
137 | unsigned int vnic_dev_get_res_count(struct vnic_dev *vdev, | |
138 | enum vnic_res_type type) | |
139 | { | |
140 | return vdev->res[type].count; | |
141 | } | |
142 | ||
143 | void __iomem *vnic_dev_get_res(struct vnic_dev *vdev, enum vnic_res_type type, | |
144 | unsigned int index) | |
145 | { | |
146 | if (!vdev->res[type].vaddr) | |
147 | return NULL; | |
148 | ||
149 | switch (type) { | |
150 | case RES_TYPE_WQ: | |
151 | case RES_TYPE_RQ: | |
152 | case RES_TYPE_CQ: | |
153 | case RES_TYPE_INTR_CTRL: | |
154 | return (char __iomem *)vdev->res[type].vaddr + | |
155 | index * VNIC_RES_STRIDE; | |
156 | default: | |
157 | return (char __iomem *)vdev->res[type].vaddr; | |
158 | } | |
159 | } | |
160 | ||
161 | unsigned int vnic_dev_desc_ring_size(struct vnic_dev_ring *ring, | |
162 | unsigned int desc_count, unsigned int desc_size) | |
163 | { | |
164 | /* The base address of the desc rings must be 512 byte aligned. | |
165 | * Descriptor count is aligned to groups of 32 descriptors. A | |
166 | * count of 0 means the maximum 4096 descriptors. Descriptor | |
167 | * size is aligned to 16 bytes. | |
168 | */ | |
169 | ||
170 | unsigned int count_align = 32; | |
171 | unsigned int desc_align = 16; | |
172 | ||
173 | ring->base_align = 512; | |
174 | ||
175 | if (desc_count == 0) | |
176 | desc_count = 4096; | |
177 | ||
178 | ring->desc_count = ALIGN(desc_count, count_align); | |
179 | ||
180 | ring->desc_size = ALIGN(desc_size, desc_align); | |
181 | ||
182 | ring->size = ring->desc_count * ring->desc_size; | |
183 | ring->size_unaligned = ring->size + ring->base_align; | |
184 | ||
185 | return ring->size_unaligned; | |
186 | } | |
187 | ||
188 | void vnic_dev_clear_desc_ring(struct vnic_dev_ring *ring) | |
189 | { | |
190 | memset(ring->descs, 0, ring->size); | |
191 | } | |
192 | ||
193 | int vnic_dev_alloc_desc_ring(struct vnic_dev *vdev, struct vnic_dev_ring *ring, | |
194 | unsigned int desc_count, unsigned int desc_size) | |
195 | { | |
196 | vnic_dev_desc_ring_size(ring, desc_count, desc_size); | |
197 | ||
198 | ring->descs_unaligned = pci_alloc_consistent(vdev->pdev, | |
199 | ring->size_unaligned, | |
200 | &ring->base_addr_unaligned); | |
201 | ||
202 | if (!ring->descs_unaligned) { | |
203 | printk(KERN_ERR | |
204 | "Failed to allocate ring (size=%d), aborting\n", | |
205 | (int)ring->size); | |
206 | return -ENOMEM; | |
207 | } | |
208 | ||
209 | ring->base_addr = ALIGN(ring->base_addr_unaligned, | |
210 | ring->base_align); | |
211 | ring->descs = (u8 *)ring->descs_unaligned + | |
212 | (ring->base_addr - ring->base_addr_unaligned); | |
213 | ||
214 | vnic_dev_clear_desc_ring(ring); | |
215 | ||
216 | ring->desc_avail = ring->desc_count - 1; | |
217 | ||
218 | return 0; | |
219 | } | |
220 | ||
221 | void vnic_dev_free_desc_ring(struct vnic_dev *vdev, struct vnic_dev_ring *ring) | |
222 | { | |
223 | if (ring->descs) { | |
224 | pci_free_consistent(vdev->pdev, | |
225 | ring->size_unaligned, | |
226 | ring->descs_unaligned, | |
227 | ring->base_addr_unaligned); | |
228 | ring->descs = NULL; | |
229 | } | |
230 | } | |
231 | ||
232 | int vnic_dev_cmd(struct vnic_dev *vdev, enum vnic_devcmd_cmd cmd, | |
233 | u64 *a0, u64 *a1, int wait) | |
234 | { | |
235 | struct vnic_devcmd __iomem *devcmd = vdev->devcmd; | |
236 | int delay; | |
237 | u32 status; | |
238 | int dev_cmd_err[] = { | |
239 | /* convert from fw's version of error.h to host's version */ | |
240 | 0, /* ERR_SUCCESS */ | |
241 | EINVAL, /* ERR_EINVAL */ | |
242 | EFAULT, /* ERR_EFAULT */ | |
243 | EPERM, /* ERR_EPERM */ | |
244 | EBUSY, /* ERR_EBUSY */ | |
245 | }; | |
246 | int err; | |
247 | ||
248 | status = ioread32(&devcmd->status); | |
249 | if (status & STAT_BUSY) { | |
250 | printk(KERN_ERR "Busy devcmd %d\n", _CMD_N(cmd)); | |
251 | return -EBUSY; | |
252 | } | |
253 | ||
254 | if (_CMD_DIR(cmd) & _CMD_DIR_WRITE) { | |
255 | writeq(*a0, &devcmd->args[0]); | |
256 | writeq(*a1, &devcmd->args[1]); | |
257 | wmb(); | |
258 | } | |
259 | ||
260 | iowrite32(cmd, &devcmd->cmd); | |
261 | ||
262 | if ((_CMD_FLAGS(cmd) & _CMD_FLAGS_NOWAIT)) | |
263 | return 0; | |
264 | ||
265 | for (delay = 0; delay < wait; delay++) { | |
266 | ||
267 | udelay(100); | |
268 | ||
269 | status = ioread32(&devcmd->status); | |
270 | if (!(status & STAT_BUSY)) { | |
271 | ||
272 | if (status & STAT_ERROR) { | |
273 | err = dev_cmd_err[(int)readq(&devcmd->args[0])]; | |
274 | printk(KERN_ERR "Error %d devcmd %d\n", | |
275 | err, _CMD_N(cmd)); | |
276 | return -err; | |
277 | } | |
278 | ||
279 | if (_CMD_DIR(cmd) & _CMD_DIR_READ) { | |
280 | rmb(); | |
281 | *a0 = readq(&devcmd->args[0]); | |
282 | *a1 = readq(&devcmd->args[1]); | |
283 | } | |
284 | ||
285 | return 0; | |
286 | } | |
287 | } | |
288 | ||
289 | printk(KERN_ERR "Timedout devcmd %d\n", _CMD_N(cmd)); | |
290 | return -ETIMEDOUT; | |
291 | } | |
292 | ||
293 | int vnic_dev_fw_info(struct vnic_dev *vdev, | |
294 | struct vnic_devcmd_fw_info **fw_info) | |
295 | { | |
296 | u64 a0, a1 = 0; | |
297 | int wait = 1000; | |
298 | int err = 0; | |
299 | ||
300 | if (!vdev->fw_info) { | |
301 | vdev->fw_info = pci_alloc_consistent(vdev->pdev, | |
302 | sizeof(struct vnic_devcmd_fw_info), | |
303 | &vdev->fw_info_pa); | |
304 | if (!vdev->fw_info) | |
305 | return -ENOMEM; | |
306 | ||
307 | a0 = vdev->fw_info_pa; | |
308 | ||
309 | /* only get fw_info once and cache it */ | |
310 | err = vnic_dev_cmd(vdev, CMD_MCPU_FW_INFO, &a0, &a1, wait); | |
311 | } | |
312 | ||
313 | *fw_info = vdev->fw_info; | |
314 | ||
315 | return err; | |
316 | } | |
317 | ||
318 | int vnic_dev_spec(struct vnic_dev *vdev, unsigned int offset, unsigned int size, | |
319 | void *value) | |
320 | { | |
321 | u64 a0, a1; | |
322 | int wait = 1000; | |
323 | int err; | |
324 | ||
325 | a0 = offset; | |
326 | a1 = size; | |
327 | ||
328 | err = vnic_dev_cmd(vdev, CMD_DEV_SPEC, &a0, &a1, wait); | |
329 | ||
330 | switch (size) { | |
331 | case 1: *(u8 *)value = (u8)a0; break; | |
332 | case 2: *(u16 *)value = (u16)a0; break; | |
333 | case 4: *(u32 *)value = (u32)a0; break; | |
334 | case 8: *(u64 *)value = a0; break; | |
335 | default: BUG(); break; | |
336 | } | |
337 | ||
338 | return err; | |
339 | } | |
340 | ||
341 | int vnic_dev_stats_clear(struct vnic_dev *vdev) | |
342 | { | |
343 | u64 a0 = 0, a1 = 0; | |
344 | int wait = 1000; | |
345 | return vnic_dev_cmd(vdev, CMD_STATS_CLEAR, &a0, &a1, wait); | |
346 | } | |
347 | ||
348 | int vnic_dev_stats_dump(struct vnic_dev *vdev, struct vnic_stats **stats) | |
349 | { | |
350 | u64 a0, a1; | |
351 | int wait = 1000; | |
352 | ||
353 | if (!vdev->stats) { | |
354 | vdev->stats = pci_alloc_consistent(vdev->pdev, | |
355 | sizeof(struct vnic_stats), &vdev->stats_pa); | |
356 | if (!vdev->stats) | |
357 | return -ENOMEM; | |
358 | } | |
359 | ||
360 | *stats = vdev->stats; | |
361 | a0 = vdev->stats_pa; | |
362 | a1 = sizeof(struct vnic_stats); | |
363 | ||
364 | return vnic_dev_cmd(vdev, CMD_STATS_DUMP, &a0, &a1, wait); | |
365 | } | |
366 | ||
367 | int vnic_dev_close(struct vnic_dev *vdev) | |
368 | { | |
369 | u64 a0 = 0, a1 = 0; | |
370 | int wait = 1000; | |
371 | return vnic_dev_cmd(vdev, CMD_CLOSE, &a0, &a1, wait); | |
372 | } | |
373 | ||
374 | int vnic_dev_enable(struct vnic_dev *vdev) | |
375 | { | |
376 | u64 a0 = 0, a1 = 0; | |
377 | int wait = 1000; | |
378 | return vnic_dev_cmd(vdev, CMD_ENABLE, &a0, &a1, wait); | |
379 | } | |
380 | ||
381 | int vnic_dev_disable(struct vnic_dev *vdev) | |
382 | { | |
383 | u64 a0 = 0, a1 = 0; | |
384 | int wait = 1000; | |
385 | return vnic_dev_cmd(vdev, CMD_DISABLE, &a0, &a1, wait); | |
386 | } | |
387 | ||
388 | int vnic_dev_open(struct vnic_dev *vdev, int arg) | |
389 | { | |
390 | u64 a0 = (u32)arg, a1 = 0; | |
391 | int wait = 1000; | |
392 | return vnic_dev_cmd(vdev, CMD_OPEN, &a0, &a1, wait); | |
393 | } | |
394 | ||
395 | int vnic_dev_open_done(struct vnic_dev *vdev, int *done) | |
396 | { | |
397 | u64 a0 = 0, a1 = 0; | |
398 | int wait = 1000; | |
399 | int err; | |
400 | ||
401 | *done = 0; | |
402 | ||
403 | err = vnic_dev_cmd(vdev, CMD_OPEN_STATUS, &a0, &a1, wait); | |
404 | if (err) | |
405 | return err; | |
406 | ||
407 | *done = (a0 == 0); | |
408 | ||
409 | return 0; | |
410 | } | |
411 | ||
412 | int vnic_dev_soft_reset(struct vnic_dev *vdev, int arg) | |
413 | { | |
414 | u64 a0 = (u32)arg, a1 = 0; | |
415 | int wait = 1000; | |
416 | return vnic_dev_cmd(vdev, CMD_SOFT_RESET, &a0, &a1, wait); | |
417 | } | |
418 | ||
419 | int vnic_dev_soft_reset_done(struct vnic_dev *vdev, int *done) | |
420 | { | |
421 | u64 a0 = 0, a1 = 0; | |
422 | int wait = 1000; | |
423 | int err; | |
424 | ||
425 | *done = 0; | |
426 | ||
427 | err = vnic_dev_cmd(vdev, CMD_SOFT_RESET_STATUS, &a0, &a1, wait); | |
428 | if (err) | |
429 | return err; | |
430 | ||
431 | *done = (a0 == 0); | |
432 | ||
433 | return 0; | |
434 | } | |
435 | ||
436 | int vnic_dev_hang_notify(struct vnic_dev *vdev) | |
437 | { | |
438 | u64 a0, a1; | |
439 | int wait = 1000; | |
440 | return vnic_dev_cmd(vdev, CMD_HANG_NOTIFY, &a0, &a1, wait); | |
441 | } | |
442 | ||
443 | int vnic_dev_mac_addr(struct vnic_dev *vdev, u8 *mac_addr) | |
444 | { | |
445 | u64 a0, a1; | |
446 | int wait = 1000; | |
447 | int err, i; | |
448 | ||
449 | for (i = 0; i < ETH_ALEN; i++) | |
450 | mac_addr[i] = 0; | |
451 | ||
452 | err = vnic_dev_cmd(vdev, CMD_MAC_ADDR, &a0, &a1, wait); | |
453 | if (err) | |
454 | return err; | |
455 | ||
456 | for (i = 0; i < ETH_ALEN; i++) | |
457 | mac_addr[i] = ((u8 *)&a0)[i]; | |
458 | ||
459 | return 0; | |
460 | } | |
461 | ||
462 | void vnic_dev_packet_filter(struct vnic_dev *vdev, int directed, int multicast, | |
463 | int broadcast, int promisc, int allmulti) | |
464 | { | |
465 | u64 a0, a1 = 0; | |
466 | int wait = 1000; | |
467 | int err; | |
468 | ||
469 | a0 = (directed ? CMD_PFILTER_DIRECTED : 0) | | |
470 | (multicast ? CMD_PFILTER_MULTICAST : 0) | | |
471 | (broadcast ? CMD_PFILTER_BROADCAST : 0) | | |
472 | (promisc ? CMD_PFILTER_PROMISCUOUS : 0) | | |
473 | (allmulti ? CMD_PFILTER_ALL_MULTICAST : 0); | |
474 | ||
475 | err = vnic_dev_cmd(vdev, CMD_PACKET_FILTER, &a0, &a1, wait); | |
476 | if (err) | |
477 | printk(KERN_ERR "Can't set packet filter\n"); | |
478 | } | |
479 | ||
480 | void vnic_dev_add_addr(struct vnic_dev *vdev, u8 *addr) | |
481 | { | |
482 | u64 a0 = 0, a1 = 0; | |
483 | int wait = 1000; | |
484 | int err; | |
485 | int i; | |
486 | ||
487 | for (i = 0; i < ETH_ALEN; i++) | |
488 | ((u8 *)&a0)[i] = addr[i]; | |
489 | ||
490 | err = vnic_dev_cmd(vdev, CMD_ADDR_ADD, &a0, &a1, wait); | |
491 | if (err) | |
492 | printk(KERN_ERR | |
493 | "Can't add addr [%02x:%02x:%02x:%02x:%02x:%02x], %d\n", | |
494 | addr[0], addr[1], addr[2], addr[3], addr[4], addr[5], | |
495 | err); | |
496 | } | |
497 | ||
498 | void vnic_dev_del_addr(struct vnic_dev *vdev, u8 *addr) | |
499 | { | |
500 | u64 a0 = 0, a1 = 0; | |
501 | int wait = 1000; | |
502 | int err; | |
503 | int i; | |
504 | ||
505 | for (i = 0; i < ETH_ALEN; i++) | |
506 | ((u8 *)&a0)[i] = addr[i]; | |
507 | ||
508 | err = vnic_dev_cmd(vdev, CMD_ADDR_DEL, &a0, &a1, wait); | |
509 | if (err) | |
510 | printk(KERN_ERR | |
511 | "Can't del addr [%02x:%02x:%02x:%02x:%02x:%02x], %d\n", | |
512 | addr[0], addr[1], addr[2], addr[3], addr[4], addr[5], | |
513 | err); | |
514 | } | |
515 | ||
516 | int vnic_dev_notify_set(struct vnic_dev *vdev, u16 intr) | |
517 | { | |
518 | u64 a0, a1; | |
519 | int wait = 1000; | |
520 | ||
521 | if (!vdev->notify) { | |
522 | vdev->notify = pci_alloc_consistent(vdev->pdev, | |
523 | sizeof(struct vnic_devcmd_notify), | |
524 | &vdev->notify_pa); | |
525 | if (!vdev->notify) | |
526 | return -ENOMEM; | |
527 | } | |
528 | ||
529 | a0 = vdev->notify_pa; | |
530 | a1 = ((u64)intr << 32) & 0x0000ffff00000000ULL; | |
531 | a1 += sizeof(struct vnic_devcmd_notify); | |
532 | ||
533 | return vnic_dev_cmd(vdev, CMD_NOTIFY, &a0, &a1, wait); | |
534 | } | |
535 | ||
536 | void vnic_dev_notify_unset(struct vnic_dev *vdev) | |
537 | { | |
538 | u64 a0, a1; | |
539 | int wait = 1000; | |
540 | ||
541 | a0 = 0; /* paddr = 0 to unset notify buffer */ | |
542 | a1 = 0x0000ffff00000000ULL; /* intr num = -1 to unreg for intr */ | |
543 | a1 += sizeof(struct vnic_devcmd_notify); | |
544 | ||
545 | vnic_dev_cmd(vdev, CMD_NOTIFY, &a0, &a1, wait); | |
546 | } | |
547 | ||
548 | static int vnic_dev_notify_ready(struct vnic_dev *vdev) | |
549 | { | |
550 | u32 *words; | |
551 | unsigned int nwords = sizeof(struct vnic_devcmd_notify) / 4; | |
552 | unsigned int i; | |
553 | u32 csum; | |
554 | ||
555 | if (!vdev->notify) | |
556 | return 0; | |
557 | ||
558 | do { | |
559 | csum = 0; | |
560 | memcpy(&vdev->notify_copy, vdev->notify, | |
561 | sizeof(struct vnic_devcmd_notify)); | |
562 | words = (u32 *)&vdev->notify_copy; | |
563 | for (i = 1; i < nwords; i++) | |
564 | csum += words[i]; | |
565 | } while (csum != words[0]); | |
566 | ||
567 | return 1; | |
568 | } | |
569 | ||
570 | int vnic_dev_init(struct vnic_dev *vdev, int arg) | |
571 | { | |
572 | u64 a0 = (u32)arg, a1 = 0; | |
573 | int wait = 1000; | |
574 | return vnic_dev_cmd(vdev, CMD_INIT, &a0, &a1, wait); | |
575 | } | |
576 | ||
577 | int vnic_dev_link_status(struct vnic_dev *vdev) | |
578 | { | |
579 | if (vdev->linkstatus) | |
580 | return *vdev->linkstatus; | |
581 | ||
582 | if (!vnic_dev_notify_ready(vdev)) | |
583 | return 0; | |
584 | ||
585 | return vdev->notify_copy.link_state; | |
586 | } | |
587 | ||
588 | u32 vnic_dev_port_speed(struct vnic_dev *vdev) | |
589 | { | |
590 | if (!vnic_dev_notify_ready(vdev)) | |
591 | return 0; | |
592 | ||
593 | return vdev->notify_copy.port_speed; | |
594 | } | |
595 | ||
596 | u32 vnic_dev_msg_lvl(struct vnic_dev *vdev) | |
597 | { | |
598 | if (!vnic_dev_notify_ready(vdev)) | |
599 | return 0; | |
600 | ||
601 | return vdev->notify_copy.msglvl; | |
602 | } | |
603 | ||
604 | u32 vnic_dev_mtu(struct vnic_dev *vdev) | |
605 | { | |
606 | if (!vnic_dev_notify_ready(vdev)) | |
607 | return 0; | |
608 | ||
609 | return vdev->notify_copy.mtu; | |
610 | } | |
611 | ||
612 | void vnic_dev_set_intr_mode(struct vnic_dev *vdev, | |
613 | enum vnic_dev_intr_mode intr_mode) | |
614 | { | |
615 | vdev->intr_mode = intr_mode; | |
616 | } | |
617 | ||
618 | enum vnic_dev_intr_mode vnic_dev_get_intr_mode( | |
619 | struct vnic_dev *vdev) | |
620 | { | |
621 | return vdev->intr_mode; | |
622 | } | |
623 | ||
624 | void vnic_dev_unregister(struct vnic_dev *vdev) | |
625 | { | |
626 | if (vdev) { | |
627 | if (vdev->notify) | |
628 | pci_free_consistent(vdev->pdev, | |
629 | sizeof(struct vnic_devcmd_notify), | |
630 | vdev->notify, | |
631 | vdev->notify_pa); | |
632 | if (vdev->linkstatus) | |
633 | pci_free_consistent(vdev->pdev, | |
634 | sizeof(u32), | |
635 | vdev->linkstatus, | |
636 | vdev->linkstatus_pa); | |
637 | if (vdev->stats) | |
638 | pci_free_consistent(vdev->pdev, | |
639 | sizeof(struct vnic_dev), | |
640 | vdev->stats, vdev->stats_pa); | |
641 | if (vdev->fw_info) | |
642 | pci_free_consistent(vdev->pdev, | |
643 | sizeof(struct vnic_devcmd_fw_info), | |
644 | vdev->fw_info, vdev->fw_info_pa); | |
645 | kfree(vdev); | |
646 | } | |
647 | } | |
648 | ||
649 | struct vnic_dev *vnic_dev_register(struct vnic_dev *vdev, | |
650 | void *priv, struct pci_dev *pdev, struct vnic_dev_bar *bar) | |
651 | { | |
652 | if (!vdev) { | |
653 | vdev = kzalloc(sizeof(struct vnic_dev), GFP_ATOMIC); | |
654 | if (!vdev) | |
655 | return NULL; | |
656 | } | |
657 | ||
658 | vdev->priv = priv; | |
659 | vdev->pdev = pdev; | |
660 | ||
661 | if (vnic_dev_discover_res(vdev, bar)) | |
662 | goto err_out; | |
663 | ||
664 | vdev->devcmd = vnic_dev_get_res(vdev, RES_TYPE_DEVCMD, 0); | |
665 | if (!vdev->devcmd) | |
666 | goto err_out; | |
667 | ||
668 | return vdev; | |
669 | ||
670 | err_out: | |
671 | vnic_dev_unregister(vdev); | |
672 | return NULL; | |
673 | } | |
674 |