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01f2e4ea | 1 | /* |
29046f9b | 2 | * Copyright 2008-2010 Cisco Systems, Inc. All rights reserved. |
01f2e4ea SF |
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" | |
373fb087 | 30 | #include "vnic_wq.h" |
01f2e4ea | 31 | #include "vnic_stats.h" |
6a3c2f83 | 32 | #include "enic.h" |
01f2e4ea | 33 | |
01f2e4ea SF |
34 | #define VNIC_MAX_RES_HDR_SIZE \ |
35 | (sizeof(struct vnic_resource_header) + \ | |
36 | sizeof(struct vnic_resource) * RES_TYPE_MAX) | |
37 | #define VNIC_RES_STRIDE 128 | |
38 | ||
39 | void *vnic_dev_priv(struct vnic_dev *vdev) | |
40 | { | |
41 | return vdev->priv; | |
42 | } | |
43 | ||
44 | static int vnic_dev_discover_res(struct vnic_dev *vdev, | |
27e6c7d3 | 45 | struct vnic_dev_bar *bar, unsigned int num_bars) |
01f2e4ea SF |
46 | { |
47 | struct vnic_resource_header __iomem *rh; | |
90cf0b53 | 48 | struct mgmt_barmap_hdr __iomem *mrh; |
01f2e4ea SF |
49 | struct vnic_resource __iomem *r; |
50 | u8 type; | |
51 | ||
27e6c7d3 SF |
52 | if (num_bars == 0) |
53 | return -EINVAL; | |
54 | ||
01f2e4ea | 55 | if (bar->len < VNIC_MAX_RES_HDR_SIZE) { |
6a3c2f83 | 56 | vdev_err("vNIC BAR0 res hdr length error\n"); |
01f2e4ea SF |
57 | return -EINVAL; |
58 | } | |
59 | ||
90cf0b53 RP |
60 | rh = bar->vaddr; |
61 | mrh = bar->vaddr; | |
01f2e4ea | 62 | if (!rh) { |
6a3c2f83 | 63 | vdev_err("vNIC BAR0 res hdr not mem-mapped\n"); |
01f2e4ea SF |
64 | return -EINVAL; |
65 | } | |
66 | ||
90cf0b53 RP |
67 | /* Check for mgmt vnic in addition to normal vnic */ |
68 | if ((ioread32(&rh->magic) != VNIC_RES_MAGIC) || | |
69 | (ioread32(&rh->version) != VNIC_RES_VERSION)) { | |
70 | if ((ioread32(&mrh->magic) != MGMTVNIC_MAGIC) || | |
71 | (ioread32(&mrh->version) != MGMTVNIC_VERSION)) { | |
6a3c2f83 GV |
72 | vdev_err("vNIC BAR0 res magic/version error exp (%lx/%lx) or (%lx/%lx), curr (%x/%x)\n", |
73 | VNIC_RES_MAGIC, VNIC_RES_VERSION, | |
74 | MGMTVNIC_MAGIC, MGMTVNIC_VERSION, | |
75 | ioread32(&rh->magic), ioread32(&rh->version)); | |
90cf0b53 RP |
76 | return -EINVAL; |
77 | } | |
01f2e4ea SF |
78 | } |
79 | ||
90cf0b53 RP |
80 | if (ioread32(&mrh->magic) == MGMTVNIC_MAGIC) |
81 | r = (struct vnic_resource __iomem *)(mrh + 1); | |
82 | else | |
83 | r = (struct vnic_resource __iomem *)(rh + 1); | |
84 | ||
01f2e4ea SF |
85 | |
86 | while ((type = ioread8(&r->type)) != RES_TYPE_EOL) { | |
87 | ||
88 | u8 bar_num = ioread8(&r->bar); | |
89 | u32 bar_offset = ioread32(&r->bar_offset); | |
90 | u32 count = ioread32(&r->count); | |
91 | u32 len; | |
92 | ||
93 | r++; | |
94 | ||
27e6c7d3 SF |
95 | if (bar_num >= num_bars) |
96 | continue; | |
97 | ||
98 | if (!bar[bar_num].len || !bar[bar_num].vaddr) | |
01f2e4ea SF |
99 | continue; |
100 | ||
101 | switch (type) { | |
102 | case RES_TYPE_WQ: | |
103 | case RES_TYPE_RQ: | |
104 | case RES_TYPE_CQ: | |
105 | case RES_TYPE_INTR_CTRL: | |
106 | /* each count is stride bytes long */ | |
107 | len = count * VNIC_RES_STRIDE; | |
27e6c7d3 | 108 | if (len + bar_offset > bar[bar_num].len) { |
6a3c2f83 GV |
109 | vdev_err("vNIC BAR0 resource %d out-of-bounds, offset 0x%x + size 0x%x > bar len 0x%lx\n", |
110 | type, bar_offset, len, | |
111 | bar[bar_num].len); | |
01f2e4ea SF |
112 | return -EINVAL; |
113 | } | |
114 | break; | |
115 | case RES_TYPE_INTR_PBA_LEGACY: | |
116 | case RES_TYPE_DEVCMD: | |
373fb087 | 117 | case RES_TYPE_DEVCMD2: |
01f2e4ea SF |
118 | len = count; |
119 | break; | |
120 | default: | |
121 | continue; | |
122 | } | |
123 | ||
124 | vdev->res[type].count = count; | |
27e6c7d3 SF |
125 | vdev->res[type].vaddr = (char __iomem *)bar[bar_num].vaddr + |
126 | bar_offset; | |
127 | vdev->res[type].bus_addr = bar[bar_num].bus_addr + bar_offset; | |
01f2e4ea SF |
128 | } |
129 | ||
130 | return 0; | |
131 | } | |
132 | ||
133 | unsigned int vnic_dev_get_res_count(struct vnic_dev *vdev, | |
134 | enum vnic_res_type type) | |
135 | { | |
136 | return vdev->res[type].count; | |
137 | } | |
4a50ddfd | 138 | EXPORT_SYMBOL(vnic_dev_get_res_count); |
01f2e4ea SF |
139 | |
140 | void __iomem *vnic_dev_get_res(struct vnic_dev *vdev, enum vnic_res_type type, | |
141 | unsigned int index) | |
142 | { | |
143 | if (!vdev->res[type].vaddr) | |
144 | return NULL; | |
145 | ||
146 | switch (type) { | |
147 | case RES_TYPE_WQ: | |
148 | case RES_TYPE_RQ: | |
149 | case RES_TYPE_CQ: | |
150 | case RES_TYPE_INTR_CTRL: | |
151 | return (char __iomem *)vdev->res[type].vaddr + | |
152 | index * VNIC_RES_STRIDE; | |
153 | default: | |
154 | return (char __iomem *)vdev->res[type].vaddr; | |
155 | } | |
156 | } | |
4a50ddfd | 157 | EXPORT_SYMBOL(vnic_dev_get_res); |
01f2e4ea | 158 | |
2fdba388 | 159 | static unsigned int vnic_dev_desc_ring_size(struct vnic_dev_ring *ring, |
01f2e4ea SF |
160 | unsigned int desc_count, unsigned int desc_size) |
161 | { | |
162 | /* The base address of the desc rings must be 512 byte aligned. | |
163 | * Descriptor count is aligned to groups of 32 descriptors. A | |
164 | * count of 0 means the maximum 4096 descriptors. Descriptor | |
165 | * size is aligned to 16 bytes. | |
166 | */ | |
167 | ||
168 | unsigned int count_align = 32; | |
169 | unsigned int desc_align = 16; | |
170 | ||
171 | ring->base_align = 512; | |
172 | ||
173 | if (desc_count == 0) | |
174 | desc_count = 4096; | |
175 | ||
176 | ring->desc_count = ALIGN(desc_count, count_align); | |
177 | ||
178 | ring->desc_size = ALIGN(desc_size, desc_align); | |
179 | ||
180 | ring->size = ring->desc_count * ring->desc_size; | |
181 | ring->size_unaligned = ring->size + ring->base_align; | |
182 | ||
183 | return ring->size_unaligned; | |
184 | } | |
185 | ||
186 | void vnic_dev_clear_desc_ring(struct vnic_dev_ring *ring) | |
187 | { | |
188 | memset(ring->descs, 0, ring->size); | |
189 | } | |
190 | ||
191 | int vnic_dev_alloc_desc_ring(struct vnic_dev *vdev, struct vnic_dev_ring *ring, | |
192 | unsigned int desc_count, unsigned int desc_size) | |
193 | { | |
194 | vnic_dev_desc_ring_size(ring, desc_count, desc_size); | |
195 | ||
196 | ring->descs_unaligned = pci_alloc_consistent(vdev->pdev, | |
197 | ring->size_unaligned, | |
198 | &ring->base_addr_unaligned); | |
199 | ||
200 | if (!ring->descs_unaligned) { | |
6a3c2f83 GV |
201 | vdev_err("Failed to allocate ring (size=%d), aborting\n", |
202 | (int)ring->size); | |
01f2e4ea SF |
203 | return -ENOMEM; |
204 | } | |
205 | ||
206 | ring->base_addr = ALIGN(ring->base_addr_unaligned, | |
207 | ring->base_align); | |
208 | ring->descs = (u8 *)ring->descs_unaligned + | |
209 | (ring->base_addr - ring->base_addr_unaligned); | |
210 | ||
211 | vnic_dev_clear_desc_ring(ring); | |
212 | ||
213 | ring->desc_avail = ring->desc_count - 1; | |
214 | ||
215 | return 0; | |
216 | } | |
217 | ||
218 | void vnic_dev_free_desc_ring(struct vnic_dev *vdev, struct vnic_dev_ring *ring) | |
219 | { | |
220 | if (ring->descs) { | |
221 | pci_free_consistent(vdev->pdev, | |
222 | ring->size_unaligned, | |
223 | ring->descs_unaligned, | |
224 | ring->base_addr_unaligned); | |
225 | ring->descs = NULL; | |
226 | } | |
227 | } | |
228 | ||
70feadf3 VK |
229 | static int _vnic_dev_cmd(struct vnic_dev *vdev, enum vnic_devcmd_cmd cmd, |
230 | int wait) | |
01f2e4ea SF |
231 | { |
232 | struct vnic_devcmd __iomem *devcmd = vdev->devcmd; | |
70feadf3 | 233 | unsigned int i; |
01f2e4ea SF |
234 | int delay; |
235 | u32 status; | |
01f2e4ea SF |
236 | int err; |
237 | ||
238 | status = ioread32(&devcmd->status); | |
506e1198 VK |
239 | if (status == 0xFFFFFFFF) { |
240 | /* PCI-e target device is gone */ | |
241 | return -ENODEV; | |
242 | } | |
01f2e4ea | 243 | if (status & STAT_BUSY) { |
6a3c2f83 | 244 | vdev_neterr("Busy devcmd %d\n", _CMD_N(cmd)); |
01f2e4ea SF |
245 | return -EBUSY; |
246 | } | |
247 | ||
248 | if (_CMD_DIR(cmd) & _CMD_DIR_WRITE) { | |
70feadf3 VK |
249 | for (i = 0; i < VNIC_DEVCMD_NARGS; i++) |
250 | writeq(vdev->args[i], &devcmd->args[i]); | |
01f2e4ea SF |
251 | wmb(); |
252 | } | |
253 | ||
254 | iowrite32(cmd, &devcmd->cmd); | |
255 | ||
256 | if ((_CMD_FLAGS(cmd) & _CMD_FLAGS_NOWAIT)) | |
27e6c7d3 | 257 | return 0; |
01f2e4ea SF |
258 | |
259 | for (delay = 0; delay < wait; delay++) { | |
260 | ||
261 | udelay(100); | |
262 | ||
263 | status = ioread32(&devcmd->status); | |
506e1198 VK |
264 | if (status == 0xFFFFFFFF) { |
265 | /* PCI-e target device is gone */ | |
266 | return -ENODEV; | |
267 | } | |
70feadf3 | 268 | |
01f2e4ea SF |
269 | if (!(status & STAT_BUSY)) { |
270 | ||
271 | if (status & STAT_ERROR) { | |
27372bf5 | 272 | err = (int)readq(&devcmd->args[0]); |
07783f39 SA |
273 | if (err == ERR_EINVAL && |
274 | cmd == CMD_CAPABILITY) | |
10cc8844 | 275 | return -err; |
27372bf5 SF |
276 | if (err != ERR_ECMDUNKNOWN || |
277 | cmd != CMD_CAPABILITY) | |
6a3c2f83 GV |
278 | vdev_neterr("Error %d devcmd %d\n", |
279 | err, _CMD_N(cmd)); | |
10cc8844 | 280 | return -err; |
01f2e4ea SF |
281 | } |
282 | ||
283 | if (_CMD_DIR(cmd) & _CMD_DIR_READ) { | |
284 | rmb(); | |
70feadf3 VK |
285 | for (i = 0; i < VNIC_DEVCMD_NARGS; i++) |
286 | vdev->args[i] = readq(&devcmd->args[i]); | |
01f2e4ea SF |
287 | } |
288 | ||
289 | return 0; | |
290 | } | |
291 | } | |
292 | ||
6a3c2f83 | 293 | vdev_neterr("Timedout devcmd %d\n", _CMD_N(cmd)); |
01f2e4ea SF |
294 | return -ETIMEDOUT; |
295 | } | |
296 | ||
373fb087 GV |
297 | static int _vnic_dev_cmd2(struct vnic_dev *vdev, enum vnic_devcmd_cmd cmd, |
298 | int wait) | |
299 | { | |
300 | struct devcmd2_controller *dc2c = vdev->devcmd2; | |
301 | struct devcmd2_result *result = dc2c->result + dc2c->next_result; | |
302 | unsigned int i; | |
303 | int delay, err; | |
304 | u32 fetch_index, posted, new_posted; | |
305 | ||
306 | posted = ioread32(&dc2c->wq_ctrl->posted_index); | |
307 | fetch_index = ioread32(&dc2c->wq_ctrl->fetch_index); | |
308 | ||
309 | if (posted == 0xFFFFFFFF || fetch_index == 0xFFFFFFFF) | |
310 | return -ENODEV; | |
311 | ||
312 | new_posted = (posted + 1) % DEVCMD2_RING_SIZE; | |
313 | ||
314 | if (new_posted == fetch_index) { | |
315 | vdev_neterr("devcmd2 %d: wq is full. fetch index: %u, posted index: %u\n", | |
316 | _CMD_N(cmd), fetch_index, posted); | |
317 | return -EBUSY; | |
318 | } | |
319 | dc2c->cmd_ring[posted].cmd = cmd; | |
320 | dc2c->cmd_ring[posted].flags = 0; | |
321 | ||
322 | if ((_CMD_FLAGS(cmd) & _CMD_FLAGS_NOWAIT)) | |
323 | dc2c->cmd_ring[posted].flags |= DEVCMD2_FNORESULT; | |
324 | if (_CMD_DIR(cmd) & _CMD_DIR_WRITE) | |
325 | for (i = 0; i < VNIC_DEVCMD_NARGS; i++) | |
326 | dc2c->cmd_ring[posted].args[i] = vdev->args[i]; | |
327 | ||
328 | /* Adding write memory barrier prevents compiler and/or CPU reordering, | |
329 | * thus avoiding descriptor posting before descriptor is initialized. | |
330 | * Otherwise, hardware can read stale descriptor fields. | |
331 | */ | |
332 | wmb(); | |
333 | iowrite32(new_posted, &dc2c->wq_ctrl->posted_index); | |
334 | ||
335 | if (dc2c->cmd_ring[posted].flags & DEVCMD2_FNORESULT) | |
336 | return 0; | |
337 | ||
338 | for (delay = 0; delay < wait; delay++) { | |
339 | if (result->color == dc2c->color) { | |
340 | dc2c->next_result++; | |
341 | if (dc2c->next_result == dc2c->result_size) { | |
342 | dc2c->next_result = 0; | |
343 | dc2c->color = dc2c->color ? 0 : 1; | |
344 | } | |
345 | if (result->error) { | |
346 | err = result->error; | |
347 | if (err != ERR_ECMDUNKNOWN || | |
348 | cmd != CMD_CAPABILITY) | |
349 | vdev_neterr("Error %d devcmd %d\n", | |
350 | err, _CMD_N(cmd)); | |
351 | return -err; | |
352 | } | |
353 | if (_CMD_DIR(cmd) & _CMD_DIR_READ) | |
354 | for (i = 0; i < VNIC_DEVCMD2_NARGS; i++) | |
355 | vdev->args[i] = result->results[i]; | |
356 | ||
357 | return 0; | |
358 | } | |
359 | udelay(100); | |
360 | } | |
361 | ||
362 | vdev_neterr("devcmd %d timed out\n", _CMD_N(cmd)); | |
363 | ||
364 | return -ETIMEDOUT; | |
365 | } | |
366 | ||
367 | static int vnic_dev_init_devcmd1(struct vnic_dev *vdev) | |
368 | { | |
369 | vdev->devcmd = vnic_dev_get_res(vdev, RES_TYPE_DEVCMD, 0); | |
370 | if (!vdev->devcmd) | |
371 | return -ENODEV; | |
372 | vdev->devcmd_rtn = _vnic_dev_cmd; | |
373 | ||
374 | return 0; | |
375 | } | |
376 | ||
377 | static int vnic_dev_init_devcmd2(struct vnic_dev *vdev) | |
378 | { | |
379 | int err; | |
380 | unsigned int fetch_index; | |
381 | ||
382 | if (vdev->devcmd2) | |
383 | return 0; | |
384 | ||
385 | vdev->devcmd2 = kzalloc(sizeof(*vdev->devcmd2), GFP_KERNEL); | |
386 | if (!vdev->devcmd2) | |
387 | return -ENOMEM; | |
388 | ||
389 | vdev->devcmd2->color = 1; | |
390 | vdev->devcmd2->result_size = DEVCMD2_RING_SIZE; | |
391 | err = vnic_wq_devcmd2_alloc(vdev, &vdev->devcmd2->wq, DEVCMD2_RING_SIZE, | |
392 | DEVCMD2_DESC_SIZE); | |
393 | if (err) | |
394 | goto err_free_devcmd2; | |
395 | ||
396 | fetch_index = ioread32(&vdev->devcmd2->wq.ctrl->fetch_index); | |
397 | if (fetch_index == 0xFFFFFFFF) { /* check for hardware gone */ | |
398 | vdev_err("Fatal error in devcmd2 init - hardware surprise removal"); | |
399 | ||
400 | return -ENODEV; | |
401 | } | |
402 | ||
403 | vnic_wq_init_start(&vdev->devcmd2->wq, 0, fetch_index, fetch_index, 0, | |
404 | 0); | |
405 | vnic_wq_enable(&vdev->devcmd2->wq); | |
406 | ||
407 | err = vnic_dev_alloc_desc_ring(vdev, &vdev->devcmd2->results_ring, | |
408 | DEVCMD2_RING_SIZE, DEVCMD2_DESC_SIZE); | |
409 | if (err) | |
410 | goto err_free_wq; | |
411 | ||
412 | vdev->devcmd2->result = vdev->devcmd2->results_ring.descs; | |
413 | vdev->devcmd2->cmd_ring = vdev->devcmd2->wq.ring.descs; | |
414 | vdev->devcmd2->wq_ctrl = vdev->devcmd2->wq.ctrl; | |
415 | vdev->args[0] = (u64)vdev->devcmd2->results_ring.base_addr | | |
416 | VNIC_PADDR_TARGET; | |
417 | vdev->args[1] = DEVCMD2_RING_SIZE; | |
418 | ||
419 | err = _vnic_dev_cmd2(vdev, CMD_INITIALIZE_DEVCMD2, 1000); | |
420 | if (err) | |
421 | goto err_free_desc_ring; | |
422 | ||
423 | vdev->devcmd_rtn = _vnic_dev_cmd2; | |
424 | ||
425 | return 0; | |
426 | ||
427 | err_free_desc_ring: | |
428 | vnic_dev_free_desc_ring(vdev, &vdev->devcmd2->results_ring); | |
429 | err_free_wq: | |
430 | vnic_wq_disable(&vdev->devcmd2->wq); | |
431 | vnic_wq_free(&vdev->devcmd2->wq); | |
432 | err_free_devcmd2: | |
433 | kfree(vdev->devcmd2); | |
434 | vdev->devcmd2 = NULL; | |
435 | ||
436 | return err; | |
437 | } | |
438 | ||
439 | static void vnic_dev_deinit_devcmd2(struct vnic_dev *vdev) | |
440 | { | |
441 | vnic_dev_free_desc_ring(vdev, &vdev->devcmd2->results_ring); | |
442 | vnic_wq_disable(&vdev->devcmd2->wq); | |
443 | vnic_wq_free(&vdev->devcmd2->wq); | |
444 | kfree(vdev->devcmd2); | |
445 | } | |
446 | ||
889d13f5 RP |
447 | static int vnic_dev_cmd_proxy(struct vnic_dev *vdev, |
448 | enum vnic_devcmd_cmd proxy_cmd, enum vnic_devcmd_cmd cmd, | |
449 | u64 *a0, u64 *a1, int wait) | |
70feadf3 VK |
450 | { |
451 | u32 status; | |
452 | int err; | |
453 | ||
454 | memset(vdev->args, 0, sizeof(vdev->args)); | |
455 | ||
889d13f5 | 456 | vdev->args[0] = vdev->proxy_index; |
70feadf3 VK |
457 | vdev->args[1] = cmd; |
458 | vdev->args[2] = *a0; | |
459 | vdev->args[3] = *a1; | |
460 | ||
373fb087 | 461 | err = vdev->devcmd_rtn(vdev, proxy_cmd, wait); |
70feadf3 VK |
462 | if (err) |
463 | return err; | |
464 | ||
465 | status = (u32)vdev->args[0]; | |
466 | if (status & STAT_ERROR) { | |
467 | err = (int)vdev->args[1]; | |
468 | if (err != ERR_ECMDUNKNOWN || | |
469 | cmd != CMD_CAPABILITY) | |
6a3c2f83 GV |
470 | vdev_neterr("Error %d proxy devcmd %d\n", err, |
471 | _CMD_N(cmd)); | |
70feadf3 VK |
472 | return err; |
473 | } | |
474 | ||
475 | *a0 = vdev->args[1]; | |
476 | *a1 = vdev->args[2]; | |
477 | ||
478 | return 0; | |
479 | } | |
480 | ||
481 | static int vnic_dev_cmd_no_proxy(struct vnic_dev *vdev, | |
482 | enum vnic_devcmd_cmd cmd, u64 *a0, u64 *a1, int wait) | |
483 | { | |
484 | int err; | |
485 | ||
486 | vdev->args[0] = *a0; | |
487 | vdev->args[1] = *a1; | |
488 | ||
373fb087 | 489 | err = vdev->devcmd_rtn(vdev, cmd, wait); |
70feadf3 VK |
490 | |
491 | *a0 = vdev->args[0]; | |
492 | *a1 = vdev->args[1]; | |
493 | ||
494 | return err; | |
495 | } | |
496 | ||
889d13f5 RP |
497 | void vnic_dev_cmd_proxy_by_index_start(struct vnic_dev *vdev, u16 index) |
498 | { | |
499 | vdev->proxy = PROXY_BY_INDEX; | |
500 | vdev->proxy_index = index; | |
501 | } | |
502 | ||
503 | void vnic_dev_cmd_proxy_end(struct vnic_dev *vdev) | |
504 | { | |
505 | vdev->proxy = PROXY_NONE; | |
506 | vdev->proxy_index = 0; | |
507 | } | |
508 | ||
70feadf3 VK |
509 | int vnic_dev_cmd(struct vnic_dev *vdev, enum vnic_devcmd_cmd cmd, |
510 | u64 *a0, u64 *a1, int wait) | |
511 | { | |
512 | memset(vdev->args, 0, sizeof(vdev->args)); | |
513 | ||
514 | switch (vdev->proxy) { | |
889d13f5 RP |
515 | case PROXY_BY_INDEX: |
516 | return vnic_dev_cmd_proxy(vdev, CMD_PROXY_BY_INDEX, cmd, | |
517 | a0, a1, wait); | |
70feadf3 | 518 | case PROXY_BY_BDF: |
889d13f5 RP |
519 | return vnic_dev_cmd_proxy(vdev, CMD_PROXY_BY_BDF, cmd, |
520 | a0, a1, wait); | |
70feadf3 VK |
521 | case PROXY_NONE: |
522 | default: | |
523 | return vnic_dev_cmd_no_proxy(vdev, cmd, a0, a1, wait); | |
524 | } | |
525 | } | |
526 | ||
5e4232ee | 527 | static int vnic_dev_capable(struct vnic_dev *vdev, enum vnic_devcmd_cmd cmd) |
27372bf5 SF |
528 | { |
529 | u64 a0 = (u32)cmd, a1 = 0; | |
530 | int wait = 1000; | |
531 | int err; | |
532 | ||
533 | err = vnic_dev_cmd(vdev, CMD_CAPABILITY, &a0, &a1, wait); | |
534 | ||
535 | return !(err || a0); | |
536 | } | |
537 | ||
01f2e4ea SF |
538 | int vnic_dev_fw_info(struct vnic_dev *vdev, |
539 | struct vnic_devcmd_fw_info **fw_info) | |
540 | { | |
541 | u64 a0, a1 = 0; | |
542 | int wait = 1000; | |
543 | int err = 0; | |
544 | ||
545 | if (!vdev->fw_info) { | |
87f44b4e JP |
546 | vdev->fw_info = pci_zalloc_consistent(vdev->pdev, |
547 | sizeof(struct vnic_devcmd_fw_info), | |
548 | &vdev->fw_info_pa); | |
01f2e4ea SF |
549 | if (!vdev->fw_info) |
550 | return -ENOMEM; | |
551 | ||
552 | a0 = vdev->fw_info_pa; | |
ea0f0d8b | 553 | a1 = sizeof(struct vnic_devcmd_fw_info); |
01f2e4ea SF |
554 | |
555 | /* only get fw_info once and cache it */ | |
f8a6dd59 NP |
556 | if (vnic_dev_capable(vdev, CMD_MCPU_FW_INFO)) |
557 | err = vnic_dev_cmd(vdev, CMD_MCPU_FW_INFO, | |
558 | &a0, &a1, wait); | |
559 | else | |
ea0f0d8b VK |
560 | err = vnic_dev_cmd(vdev, CMD_MCPU_FW_INFO_OLD, |
561 | &a0, &a1, wait); | |
01f2e4ea SF |
562 | } |
563 | ||
564 | *fw_info = vdev->fw_info; | |
565 | ||
566 | return err; | |
567 | } | |
568 | ||
569 | int vnic_dev_spec(struct vnic_dev *vdev, unsigned int offset, unsigned int size, | |
570 | void *value) | |
571 | { | |
572 | u64 a0, a1; | |
573 | int wait = 1000; | |
574 | int err; | |
575 | ||
576 | a0 = offset; | |
577 | a1 = size; | |
578 | ||
579 | err = vnic_dev_cmd(vdev, CMD_DEV_SPEC, &a0, &a1, wait); | |
580 | ||
581 | switch (size) { | |
582 | case 1: *(u8 *)value = (u8)a0; break; | |
583 | case 2: *(u16 *)value = (u16)a0; break; | |
584 | case 4: *(u32 *)value = (u32)a0; break; | |
585 | case 8: *(u64 *)value = a0; break; | |
586 | default: BUG(); break; | |
587 | } | |
588 | ||
589 | return err; | |
590 | } | |
591 | ||
01f2e4ea SF |
592 | int vnic_dev_stats_dump(struct vnic_dev *vdev, struct vnic_stats **stats) |
593 | { | |
594 | u64 a0, a1; | |
595 | int wait = 1000; | |
596 | ||
597 | if (!vdev->stats) { | |
598 | vdev->stats = pci_alloc_consistent(vdev->pdev, | |
599 | sizeof(struct vnic_stats), &vdev->stats_pa); | |
600 | if (!vdev->stats) | |
601 | return -ENOMEM; | |
602 | } | |
603 | ||
604 | *stats = vdev->stats; | |
605 | a0 = vdev->stats_pa; | |
606 | a1 = sizeof(struct vnic_stats); | |
607 | ||
608 | return vnic_dev_cmd(vdev, CMD_STATS_DUMP, &a0, &a1, wait); | |
609 | } | |
610 | ||
611 | int vnic_dev_close(struct vnic_dev *vdev) | |
612 | { | |
613 | u64 a0 = 0, a1 = 0; | |
614 | int wait = 1000; | |
615 | return vnic_dev_cmd(vdev, CMD_CLOSE, &a0, &a1, wait); | |
616 | } | |
617 | ||
2db77e0f | 618 | int vnic_dev_enable_wait(struct vnic_dev *vdev) |
01f2e4ea SF |
619 | { |
620 | u64 a0 = 0, a1 = 0; | |
621 | int wait = 1000; | |
2db77e0f | 622 | |
f8a6dd59 NP |
623 | if (vnic_dev_capable(vdev, CMD_ENABLE_WAIT)) |
624 | return vnic_dev_cmd(vdev, CMD_ENABLE_WAIT, &a0, &a1, wait); | |
625 | else | |
2db77e0f | 626 | return vnic_dev_cmd(vdev, CMD_ENABLE, &a0, &a1, wait); |
01f2e4ea SF |
627 | } |
628 | ||
629 | int vnic_dev_disable(struct vnic_dev *vdev) | |
630 | { | |
631 | u64 a0 = 0, a1 = 0; | |
632 | int wait = 1000; | |
633 | return vnic_dev_cmd(vdev, CMD_DISABLE, &a0, &a1, wait); | |
634 | } | |
635 | ||
636 | int vnic_dev_open(struct vnic_dev *vdev, int arg) | |
637 | { | |
638 | u64 a0 = (u32)arg, a1 = 0; | |
639 | int wait = 1000; | |
640 | return vnic_dev_cmd(vdev, CMD_OPEN, &a0, &a1, wait); | |
641 | } | |
642 | ||
643 | int vnic_dev_open_done(struct vnic_dev *vdev, int *done) | |
644 | { | |
645 | u64 a0 = 0, a1 = 0; | |
646 | int wait = 1000; | |
647 | int err; | |
648 | ||
649 | *done = 0; | |
650 | ||
651 | err = vnic_dev_cmd(vdev, CMD_OPEN_STATUS, &a0, &a1, wait); | |
652 | if (err) | |
653 | return err; | |
654 | ||
655 | *done = (a0 == 0); | |
656 | ||
657 | return 0; | |
658 | } | |
659 | ||
2fdba388 | 660 | static int vnic_dev_soft_reset(struct vnic_dev *vdev, int arg) |
01f2e4ea SF |
661 | { |
662 | u64 a0 = (u32)arg, a1 = 0; | |
663 | int wait = 1000; | |
664 | return vnic_dev_cmd(vdev, CMD_SOFT_RESET, &a0, &a1, wait); | |
665 | } | |
666 | ||
2fdba388 | 667 | static int vnic_dev_soft_reset_done(struct vnic_dev *vdev, int *done) |
01f2e4ea SF |
668 | { |
669 | u64 a0 = 0, a1 = 0; | |
670 | int wait = 1000; | |
671 | int err; | |
672 | ||
673 | *done = 0; | |
674 | ||
675 | err = vnic_dev_cmd(vdev, CMD_SOFT_RESET_STATUS, &a0, &a1, wait); | |
676 | if (err) | |
677 | return err; | |
678 | ||
679 | *done = (a0 == 0); | |
680 | ||
681 | return 0; | |
682 | } | |
683 | ||
99ef5639 VK |
684 | int vnic_dev_hang_reset(struct vnic_dev *vdev, int arg) |
685 | { | |
686 | u64 a0 = (u32)arg, a1 = 0; | |
687 | int wait = 1000; | |
688 | int err; | |
689 | ||
f8a6dd59 NP |
690 | if (vnic_dev_capable(vdev, CMD_HANG_RESET)) { |
691 | return vnic_dev_cmd(vdev, CMD_HANG_RESET, | |
692 | &a0, &a1, wait); | |
693 | } else { | |
99ef5639 VK |
694 | err = vnic_dev_soft_reset(vdev, arg); |
695 | if (err) | |
696 | return err; | |
99ef5639 VK |
697 | return vnic_dev_init(vdev, 0); |
698 | } | |
99ef5639 VK |
699 | } |
700 | ||
701 | int vnic_dev_hang_reset_done(struct vnic_dev *vdev, int *done) | |
702 | { | |
703 | u64 a0 = 0, a1 = 0; | |
704 | int wait = 1000; | |
705 | int err; | |
706 | ||
707 | *done = 0; | |
708 | ||
f8a6dd59 NP |
709 | if (vnic_dev_capable(vdev, CMD_HANG_RESET_STATUS)) { |
710 | err = vnic_dev_cmd(vdev, CMD_HANG_RESET_STATUS, | |
711 | &a0, &a1, wait); | |
712 | if (err) | |
713 | return err; | |
714 | } else { | |
715 | return vnic_dev_soft_reset_done(vdev, done); | |
99ef5639 VK |
716 | } |
717 | ||
718 | *done = (a0 == 0); | |
719 | ||
720 | return 0; | |
721 | } | |
722 | ||
01f2e4ea SF |
723 | int vnic_dev_hang_notify(struct vnic_dev *vdev) |
724 | { | |
725 | u64 a0, a1; | |
726 | int wait = 1000; | |
727 | return vnic_dev_cmd(vdev, CMD_HANG_NOTIFY, &a0, &a1, wait); | |
728 | } | |
729 | ||
b13423ee | 730 | int vnic_dev_get_mac_addr(struct vnic_dev *vdev, u8 *mac_addr) |
01f2e4ea SF |
731 | { |
732 | u64 a0, a1; | |
733 | int wait = 1000; | |
734 | int err, i; | |
735 | ||
736 | for (i = 0; i < ETH_ALEN; i++) | |
737 | mac_addr[i] = 0; | |
738 | ||
b13423ee | 739 | err = vnic_dev_cmd(vdev, CMD_GET_MAC_ADDR, &a0, &a1, wait); |
01f2e4ea SF |
740 | if (err) |
741 | return err; | |
742 | ||
743 | for (i = 0; i < ETH_ALEN; i++) | |
744 | mac_addr[i] = ((u8 *)&a0)[i]; | |
745 | ||
746 | return 0; | |
747 | } | |
748 | ||
383ab92f | 749 | int vnic_dev_packet_filter(struct vnic_dev *vdev, int directed, int multicast, |
01f2e4ea SF |
750 | int broadcast, int promisc, int allmulti) |
751 | { | |
752 | u64 a0, a1 = 0; | |
753 | int wait = 1000; | |
754 | int err; | |
755 | ||
756 | a0 = (directed ? CMD_PFILTER_DIRECTED : 0) | | |
757 | (multicast ? CMD_PFILTER_MULTICAST : 0) | | |
758 | (broadcast ? CMD_PFILTER_BROADCAST : 0) | | |
759 | (promisc ? CMD_PFILTER_PROMISCUOUS : 0) | | |
760 | (allmulti ? CMD_PFILTER_ALL_MULTICAST : 0); | |
761 | ||
762 | err = vnic_dev_cmd(vdev, CMD_PACKET_FILTER, &a0, &a1, wait); | |
763 | if (err) | |
6a3c2f83 | 764 | vdev_neterr("Can't set packet filter\n"); |
383ab92f VK |
765 | |
766 | return err; | |
01f2e4ea SF |
767 | } |
768 | ||
f009618a | 769 | int vnic_dev_add_addr(struct vnic_dev *vdev, const u8 *addr) |
01f2e4ea SF |
770 | { |
771 | u64 a0 = 0, a1 = 0; | |
772 | int wait = 1000; | |
773 | int err; | |
774 | int i; | |
775 | ||
776 | for (i = 0; i < ETH_ALEN; i++) | |
777 | ((u8 *)&a0)[i] = addr[i]; | |
778 | ||
779 | err = vnic_dev_cmd(vdev, CMD_ADDR_ADD, &a0, &a1, wait); | |
780 | if (err) | |
6a3c2f83 | 781 | vdev_neterr("Can't add addr [%pM], %d\n", addr, err); |
f8bd9091 SF |
782 | |
783 | return err; | |
01f2e4ea SF |
784 | } |
785 | ||
f009618a | 786 | int vnic_dev_del_addr(struct vnic_dev *vdev, const u8 *addr) |
01f2e4ea SF |
787 | { |
788 | u64 a0 = 0, a1 = 0; | |
789 | int wait = 1000; | |
790 | int err; | |
791 | int i; | |
792 | ||
793 | for (i = 0; i < ETH_ALEN; i++) | |
794 | ((u8 *)&a0)[i] = addr[i]; | |
795 | ||
796 | err = vnic_dev_cmd(vdev, CMD_ADDR_DEL, &a0, &a1, wait); | |
797 | if (err) | |
6a3c2f83 | 798 | vdev_neterr("Can't del addr [%pM], %d\n", addr, err); |
f8bd9091 SF |
799 | |
800 | return err; | |
01f2e4ea SF |
801 | } |
802 | ||
f8cac14a VK |
803 | int vnic_dev_set_ig_vlan_rewrite_mode(struct vnic_dev *vdev, |
804 | u8 ig_vlan_rewrite_mode) | |
805 | { | |
806 | u64 a0 = ig_vlan_rewrite_mode, a1 = 0; | |
807 | int wait = 1000; | |
f8cac14a | 808 | |
f8a6dd59 NP |
809 | if (vnic_dev_capable(vdev, CMD_IG_VLAN_REWRITE_MODE)) |
810 | return vnic_dev_cmd(vdev, CMD_IG_VLAN_REWRITE_MODE, | |
811 | &a0, &a1, wait); | |
812 | else | |
f8cac14a | 813 | return 0; |
f8cac14a VK |
814 | } |
815 | ||
2fdba388 | 816 | static int vnic_dev_notify_setcmd(struct vnic_dev *vdev, |
d883aa76 | 817 | void *notify_addr, dma_addr_t notify_pa, u16 intr) |
01f2e4ea SF |
818 | { |
819 | u64 a0, a1; | |
820 | int wait = 1000; | |
27372bf5 | 821 | int r; |
01f2e4ea | 822 | |
d883aa76 VK |
823 | memset(notify_addr, 0, sizeof(struct vnic_devcmd_notify)); |
824 | vdev->notify = notify_addr; | |
825 | vdev->notify_pa = notify_pa; | |
01f2e4ea | 826 | |
d883aa76 | 827 | a0 = (u64)notify_pa; |
01f2e4ea SF |
828 | a1 = ((u64)intr << 32) & 0x0000ffff00000000ULL; |
829 | a1 += sizeof(struct vnic_devcmd_notify); | |
830 | ||
27372bf5 SF |
831 | r = vnic_dev_cmd(vdev, CMD_NOTIFY, &a0, &a1, wait); |
832 | vdev->notify_sz = (r == 0) ? (u32)a1 : 0; | |
833 | return r; | |
01f2e4ea SF |
834 | } |
835 | ||
d883aa76 VK |
836 | int vnic_dev_notify_set(struct vnic_dev *vdev, u16 intr) |
837 | { | |
838 | void *notify_addr; | |
839 | dma_addr_t notify_pa; | |
840 | ||
841 | if (vdev->notify || vdev->notify_pa) { | |
6a3c2f83 | 842 | vdev_neterr("notify block %p still allocated", vdev->notify); |
d883aa76 VK |
843 | return -EINVAL; |
844 | } | |
845 | ||
846 | notify_addr = pci_alloc_consistent(vdev->pdev, | |
847 | sizeof(struct vnic_devcmd_notify), | |
848 | ¬ify_pa); | |
849 | if (!notify_addr) | |
850 | return -ENOMEM; | |
851 | ||
852 | return vnic_dev_notify_setcmd(vdev, notify_addr, notify_pa, intr); | |
853 | } | |
854 | ||
2fdba388 | 855 | static int vnic_dev_notify_unsetcmd(struct vnic_dev *vdev) |
01f2e4ea SF |
856 | { |
857 | u64 a0, a1; | |
858 | int wait = 1000; | |
383ab92f | 859 | int err; |
01f2e4ea SF |
860 | |
861 | a0 = 0; /* paddr = 0 to unset notify buffer */ | |
862 | a1 = 0x0000ffff00000000ULL; /* intr num = -1 to unreg for intr */ | |
863 | a1 += sizeof(struct vnic_devcmd_notify); | |
864 | ||
383ab92f | 865 | err = vnic_dev_cmd(vdev, CMD_NOTIFY, &a0, &a1, wait); |
d883aa76 VK |
866 | vdev->notify = NULL; |
867 | vdev->notify_pa = 0; | |
27372bf5 | 868 | vdev->notify_sz = 0; |
383ab92f VK |
869 | |
870 | return err; | |
01f2e4ea SF |
871 | } |
872 | ||
383ab92f | 873 | int vnic_dev_notify_unset(struct vnic_dev *vdev) |
d883aa76 VK |
874 | { |
875 | if (vdev->notify) { | |
876 | pci_free_consistent(vdev->pdev, | |
877 | sizeof(struct vnic_devcmd_notify), | |
878 | vdev->notify, | |
879 | vdev->notify_pa); | |
880 | } | |
881 | ||
383ab92f | 882 | return vnic_dev_notify_unsetcmd(vdev); |
d883aa76 VK |
883 | } |
884 | ||
01f2e4ea SF |
885 | static int vnic_dev_notify_ready(struct vnic_dev *vdev) |
886 | { | |
887 | u32 *words; | |
27372bf5 | 888 | unsigned int nwords = vdev->notify_sz / 4; |
01f2e4ea SF |
889 | unsigned int i; |
890 | u32 csum; | |
891 | ||
27372bf5 | 892 | if (!vdev->notify || !vdev->notify_sz) |
01f2e4ea SF |
893 | return 0; |
894 | ||
895 | do { | |
896 | csum = 0; | |
27372bf5 | 897 | memcpy(&vdev->notify_copy, vdev->notify, vdev->notify_sz); |
01f2e4ea SF |
898 | words = (u32 *)&vdev->notify_copy; |
899 | for (i = 1; i < nwords; i++) | |
900 | csum += words[i]; | |
901 | } while (csum != words[0]); | |
902 | ||
903 | return 1; | |
904 | } | |
905 | ||
906 | int vnic_dev_init(struct vnic_dev *vdev, int arg) | |
907 | { | |
908 | u64 a0 = (u32)arg, a1 = 0; | |
909 | int wait = 1000; | |
4cdc44a2 | 910 | int r = 0; |
27372bf5 | 911 | |
29046f9b | 912 | if (vnic_dev_capable(vdev, CMD_INIT)) |
27372bf5 SF |
913 | r = vnic_dev_cmd(vdev, CMD_INIT, &a0, &a1, wait); |
914 | else { | |
915 | vnic_dev_cmd(vdev, CMD_INIT_v1, &a0, &a1, wait); | |
916 | if (a0 & CMD_INITF_DEFAULT_MAC) { | |
70feadf3 VK |
917 | /* Emulate these for old CMD_INIT_v1 which |
918 | * didn't pass a0 so no CMD_INITF_*. | |
919 | */ | |
b13423ee | 920 | vnic_dev_cmd(vdev, CMD_GET_MAC_ADDR, &a0, &a1, wait); |
27372bf5 SF |
921 | vnic_dev_cmd(vdev, CMD_ADDR_ADD, &a0, &a1, wait); |
922 | } | |
4cdc44a2 SF |
923 | } |
924 | return r; | |
01f2e4ea SF |
925 | } |
926 | ||
f8bd9091 SF |
927 | int vnic_dev_deinit(struct vnic_dev *vdev) |
928 | { | |
929 | u64 a0 = 0, a1 = 0; | |
930 | int wait = 1000; | |
931 | ||
932 | return vnic_dev_cmd(vdev, CMD_DEINIT, &a0, &a1, wait); | |
933 | } | |
934 | ||
ea7ea65a VK |
935 | void vnic_dev_intr_coal_timer_info_default(struct vnic_dev *vdev) |
936 | { | |
937 | /* Default: hardware intr coal timer is in units of 1.5 usecs */ | |
938 | vdev->intr_coal_timer_info.mul = 2; | |
939 | vdev->intr_coal_timer_info.div = 3; | |
940 | vdev->intr_coal_timer_info.max_usec = | |
941 | vnic_dev_intr_coal_timer_hw_to_usec(vdev, 0xffff); | |
942 | } | |
943 | ||
944 | int vnic_dev_intr_coal_timer_info(struct vnic_dev *vdev) | |
945 | { | |
946 | int wait = 1000; | |
947 | int err; | |
948 | ||
949 | memset(vdev->args, 0, sizeof(vdev->args)); | |
950 | ||
f8a6dd59 | 951 | if (vnic_dev_capable(vdev, CMD_INTR_COAL_CONVERT)) |
373fb087 | 952 | err = vdev->devcmd_rtn(vdev, CMD_INTR_COAL_CONVERT, wait); |
f8a6dd59 NP |
953 | else |
954 | err = ERR_ECMDUNKNOWN; | |
ea7ea65a VK |
955 | |
956 | /* Use defaults when firmware doesn't support the devcmd at all or | |
957 | * supports it for only specific hardware | |
958 | */ | |
959 | if ((err == ERR_ECMDUNKNOWN) || | |
960 | (!err && !(vdev->args[0] && vdev->args[1] && vdev->args[2]))) { | |
6a3c2f83 | 961 | vdev_netwarn("Using default conversion factor for interrupt coalesce timer\n"); |
ea7ea65a VK |
962 | vnic_dev_intr_coal_timer_info_default(vdev); |
963 | return 0; | |
964 | } | |
965 | ||
f8a6dd59 NP |
966 | if (!err) { |
967 | vdev->intr_coal_timer_info.mul = (u32) vdev->args[0]; | |
968 | vdev->intr_coal_timer_info.div = (u32) vdev->args[1]; | |
969 | vdev->intr_coal_timer_info.max_usec = (u32) vdev->args[2]; | |
970 | } | |
ea7ea65a VK |
971 | |
972 | return err; | |
973 | } | |
974 | ||
01f2e4ea SF |
975 | int vnic_dev_link_status(struct vnic_dev *vdev) |
976 | { | |
01f2e4ea SF |
977 | if (!vnic_dev_notify_ready(vdev)) |
978 | return 0; | |
979 | ||
980 | return vdev->notify_copy.link_state; | |
981 | } | |
982 | ||
983 | u32 vnic_dev_port_speed(struct vnic_dev *vdev) | |
984 | { | |
985 | if (!vnic_dev_notify_ready(vdev)) | |
986 | return 0; | |
987 | ||
988 | return vdev->notify_copy.port_speed; | |
989 | } | |
990 | ||
991 | u32 vnic_dev_msg_lvl(struct vnic_dev *vdev) | |
992 | { | |
993 | if (!vnic_dev_notify_ready(vdev)) | |
994 | return 0; | |
995 | ||
996 | return vdev->notify_copy.msglvl; | |
997 | } | |
998 | ||
999 | u32 vnic_dev_mtu(struct vnic_dev *vdev) | |
1000 | { | |
1001 | if (!vnic_dev_notify_ready(vdev)) | |
1002 | return 0; | |
1003 | ||
1004 | return vdev->notify_copy.mtu; | |
1005 | } | |
1006 | ||
1007 | void vnic_dev_set_intr_mode(struct vnic_dev *vdev, | |
1008 | enum vnic_dev_intr_mode intr_mode) | |
1009 | { | |
1010 | vdev->intr_mode = intr_mode; | |
1011 | } | |
1012 | ||
1013 | enum vnic_dev_intr_mode vnic_dev_get_intr_mode( | |
1014 | struct vnic_dev *vdev) | |
1015 | { | |
1016 | return vdev->intr_mode; | |
1017 | } | |
1018 | ||
ea7ea65a VK |
1019 | u32 vnic_dev_intr_coal_timer_usec_to_hw(struct vnic_dev *vdev, u32 usec) |
1020 | { | |
1021 | return (usec * vdev->intr_coal_timer_info.mul) / | |
1022 | vdev->intr_coal_timer_info.div; | |
1023 | } | |
1024 | ||
1025 | u32 vnic_dev_intr_coal_timer_hw_to_usec(struct vnic_dev *vdev, u32 hw_cycles) | |
1026 | { | |
1027 | return (hw_cycles * vdev->intr_coal_timer_info.div) / | |
1028 | vdev->intr_coal_timer_info.mul; | |
1029 | } | |
1030 | ||
1031 | u32 vnic_dev_get_intr_coal_timer_max(struct vnic_dev *vdev) | |
1032 | { | |
1033 | return vdev->intr_coal_timer_info.max_usec; | |
1034 | } | |
1035 | ||
01f2e4ea SF |
1036 | void vnic_dev_unregister(struct vnic_dev *vdev) |
1037 | { | |
1038 | if (vdev) { | |
1039 | if (vdev->notify) | |
1040 | pci_free_consistent(vdev->pdev, | |
1041 | sizeof(struct vnic_devcmd_notify), | |
1042 | vdev->notify, | |
1043 | vdev->notify_pa); | |
01f2e4ea SF |
1044 | if (vdev->stats) |
1045 | pci_free_consistent(vdev->pdev, | |
29046f9b | 1046 | sizeof(struct vnic_stats), |
01f2e4ea SF |
1047 | vdev->stats, vdev->stats_pa); |
1048 | if (vdev->fw_info) | |
1049 | pci_free_consistent(vdev->pdev, | |
1050 | sizeof(struct vnic_devcmd_fw_info), | |
1051 | vdev->fw_info, vdev->fw_info_pa); | |
373fb087 GV |
1052 | if (vdev->devcmd2) |
1053 | vnic_dev_deinit_devcmd2(vdev); | |
1054 | ||
01f2e4ea SF |
1055 | kfree(vdev); |
1056 | } | |
1057 | } | |
4a50ddfd | 1058 | EXPORT_SYMBOL(vnic_dev_unregister); |
01f2e4ea SF |
1059 | |
1060 | struct vnic_dev *vnic_dev_register(struct vnic_dev *vdev, | |
27e6c7d3 SF |
1061 | void *priv, struct pci_dev *pdev, struct vnic_dev_bar *bar, |
1062 | unsigned int num_bars) | |
01f2e4ea SF |
1063 | { |
1064 | if (!vdev) { | |
1065 | vdev = kzalloc(sizeof(struct vnic_dev), GFP_ATOMIC); | |
1066 | if (!vdev) | |
1067 | return NULL; | |
1068 | } | |
1069 | ||
1070 | vdev->priv = priv; | |
1071 | vdev->pdev = pdev; | |
1072 | ||
27e6c7d3 | 1073 | if (vnic_dev_discover_res(vdev, bar, num_bars)) |
01f2e4ea SF |
1074 | goto err_out; |
1075 | ||
01f2e4ea SF |
1076 | return vdev; |
1077 | ||
1078 | err_out: | |
1079 | vnic_dev_unregister(vdev); | |
1080 | return NULL; | |
1081 | } | |
4a50ddfd | 1082 | EXPORT_SYMBOL(vnic_dev_register); |
1083 | ||
1084 | struct pci_dev *vnic_dev_get_pdev(struct vnic_dev *vdev) | |
1085 | { | |
1086 | return vdev->pdev; | |
1087 | } | |
1088 | EXPORT_SYMBOL(vnic_dev_get_pdev); | |
01f2e4ea | 1089 | |
373fb087 GV |
1090 | int vnic_devcmd_init(struct vnic_dev *vdev) |
1091 | { | |
f376d4ad | 1092 | void __iomem *res; |
373fb087 | 1093 | int err; |
373fb087 GV |
1094 | |
1095 | res = vnic_dev_get_res(vdev, RES_TYPE_DEVCMD2, 0); | |
1096 | if (res) { | |
1097 | err = vnic_dev_init_devcmd2(vdev); | |
1098 | if (err) | |
1099 | vdev_warn("DEVCMD2 init failed: %d, Using DEVCMD1", | |
1100 | err); | |
1101 | else | |
1102 | return 0; | |
1103 | } else { | |
1104 | vdev_warn("DEVCMD2 resource not found (old firmware?) Using DEVCMD1\n"); | |
1105 | } | |
1106 | err = vnic_dev_init_devcmd1(vdev); | |
1107 | if (err) | |
1108 | vdev_err("DEVCMD1 initialization failed: %d", err); | |
1109 | ||
1110 | return err; | |
1111 | } | |
1112 | ||
9085fd09 RP |
1113 | int vnic_dev_init_prov2(struct vnic_dev *vdev, u8 *buf, u32 len) |
1114 | { | |
1115 | u64 a0, a1 = len; | |
1116 | int wait = 1000; | |
1117 | dma_addr_t prov_pa; | |
1118 | void *prov_buf; | |
1119 | int ret; | |
1120 | ||
1121 | prov_buf = pci_alloc_consistent(vdev->pdev, len, &prov_pa); | |
1122 | if (!prov_buf) | |
1123 | return -ENOMEM; | |
27372bf5 | 1124 | |
9085fd09 RP |
1125 | memcpy(prov_buf, buf, len); |
1126 | ||
1127 | a0 = prov_pa; | |
1128 | ||
1129 | ret = vnic_dev_cmd(vdev, CMD_INIT_PROV_INFO2, &a0, &a1, wait); | |
1130 | ||
1131 | pci_free_consistent(vdev->pdev, len, prov_buf, prov_pa); | |
1132 | ||
1133 | return ret; | |
1134 | } | |
1135 | ||
1136 | int vnic_dev_enable2(struct vnic_dev *vdev, int active) | |
1137 | { | |
1138 | u64 a0, a1 = 0; | |
1139 | int wait = 1000; | |
1140 | ||
1141 | a0 = (active ? CMD_ENABLE2_ACTIVE : 0); | |
1142 | ||
1143 | return vnic_dev_cmd(vdev, CMD_ENABLE2, &a0, &a1, wait); | |
1144 | } | |
1145 | ||
1146 | static int vnic_dev_cmd_status(struct vnic_dev *vdev, enum vnic_devcmd_cmd cmd, | |
1147 | int *status) | |
1148 | { | |
1149 | u64 a0 = cmd, a1 = 0; | |
1150 | int wait = 1000; | |
1151 | int ret; | |
1152 | ||
1153 | ret = vnic_dev_cmd(vdev, CMD_STATUS, &a0, &a1, wait); | |
1154 | if (!ret) | |
1155 | *status = (int)a0; | |
1156 | ||
1157 | return ret; | |
1158 | } | |
1159 | ||
1160 | int vnic_dev_enable2_done(struct vnic_dev *vdev, int *status) | |
1161 | { | |
1162 | return vnic_dev_cmd_status(vdev, CMD_ENABLE2, status); | |
1163 | } | |
1164 | ||
1165 | int vnic_dev_deinit_done(struct vnic_dev *vdev, int *status) | |
1166 | { | |
1167 | return vnic_dev_cmd_status(vdev, CMD_DEINIT, status); | |
1168 | } | |
d6c81bc6 RP |
1169 | |
1170 | int vnic_dev_set_mac_addr(struct vnic_dev *vdev, u8 *mac_addr) | |
1171 | { | |
1172 | u64 a0, a1; | |
1173 | int wait = 1000; | |
1174 | int i; | |
1175 | ||
1176 | for (i = 0; i < ETH_ALEN; i++) | |
1177 | ((u8 *)&a0)[i] = mac_addr[i]; | |
1178 | ||
1179 | return vnic_dev_cmd(vdev, CMD_SET_MAC_ADDR, &a0, &a1, wait); | |
1180 | } | |
63118527 GV |
1181 | |
1182 | /* vnic_dev_classifier: Add/Delete classifier entries | |
1183 | * @vdev: vdev of the device | |
1184 | * @cmd: CLSF_ADD for Add filter | |
1185 | * CLSF_DEL for Delete filter | |
1186 | * @entry: In case of ADD filter, the caller passes the RQ number in this | |
1187 | * variable. | |
1188 | * | |
1189 | * This function stores the filter_id returned by the firmware in the | |
1190 | * same variable before return; | |
1191 | * | |
1192 | * In case of DEL filter, the caller passes the RQ number. Return | |
1193 | * value is irrelevant. | |
1194 | * @data: filter data | |
1195 | */ | |
1196 | int vnic_dev_classifier(struct vnic_dev *vdev, u8 cmd, u16 *entry, | |
1197 | struct filter *data) | |
1198 | { | |
1199 | u64 a0, a1; | |
1200 | int wait = 1000; | |
1201 | dma_addr_t tlv_pa; | |
1202 | int ret = -EINVAL; | |
1203 | struct filter_tlv *tlv, *tlv_va; | |
1204 | struct filter_action *action; | |
1205 | u64 tlv_size; | |
1206 | ||
1207 | if (cmd == CLSF_ADD) { | |
1208 | tlv_size = sizeof(struct filter) + | |
1209 | sizeof(struct filter_action) + | |
1210 | 2 * sizeof(struct filter_tlv); | |
1211 | tlv_va = pci_alloc_consistent(vdev->pdev, tlv_size, &tlv_pa); | |
1212 | if (!tlv_va) | |
1213 | return -ENOMEM; | |
1214 | tlv = tlv_va; | |
1215 | a0 = tlv_pa; | |
1216 | a1 = tlv_size; | |
1217 | memset(tlv, 0, tlv_size); | |
1218 | tlv->type = CLSF_TLV_FILTER; | |
1219 | tlv->length = sizeof(struct filter); | |
1220 | *(struct filter *)&tlv->val = *data; | |
1221 | ||
1222 | tlv = (struct filter_tlv *)((char *)tlv + | |
1223 | sizeof(struct filter_tlv) + | |
1224 | sizeof(struct filter)); | |
1225 | ||
1226 | tlv->type = CLSF_TLV_ACTION; | |
1227 | tlv->length = sizeof(struct filter_action); | |
1228 | action = (struct filter_action *)&tlv->val; | |
1229 | action->type = FILTER_ACTION_RQ_STEERING; | |
1230 | action->u.rq_idx = *entry; | |
1231 | ||
1232 | ret = vnic_dev_cmd(vdev, CMD_ADD_FILTER, &a0, &a1, wait); | |
1233 | *entry = (u16)a0; | |
1234 | pci_free_consistent(vdev->pdev, tlv_size, tlv_va, tlv_pa); | |
1235 | } else if (cmd == CLSF_DEL) { | |
1236 | a0 = *entry; | |
1237 | ret = vnic_dev_cmd(vdev, CMD_DEL_FILTER, &a0, &a1, wait); | |
1238 | } | |
1239 | ||
1240 | return ret; | |
1241 | } |