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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) { |
e327f4e1 | 56 | vdev_err(vdev, "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) { |
e327f4e1 | 63 | vdev_err(vdev, "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)) { | |
e327f4e1 | 72 | vdev_err(vdev, "vNIC BAR0 res magic/version error exp (%lx/%lx) or (%lx/%lx), curr (%x/%x)\n", |
6a3c2f83 GV |
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) { |
e327f4e1 | 109 | vdev_err(vdev, "vNIC BAR0 resource %d out-of-bounds, offset 0x%x + size 0x%x > bar len 0x%lx\n", |
6a3c2f83 GV |
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) { | |
e327f4e1 | 201 | vdev_err(vdev, "Failed to allocate ring (size=%d), aborting\n", |
6a3c2f83 | 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) { |
e327f4e1 | 244 | vdev_neterr(vdev, "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) | |
e327f4e1 | 278 | vdev_neterr(vdev, "Error %d devcmd %d\n", |
6a3c2f83 | 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 | ||
e327f4e1 | 293 | vdev_neterr(vdev, "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; | |
ca7f41a4 SP |
301 | struct devcmd2_result *result; |
302 | u8 color; | |
373fb087 GV |
303 | unsigned int i; |
304 | int delay, err; | |
dafc2199 GV |
305 | u32 fetch_index, new_posted; |
306 | u32 posted = dc2c->posted; | |
373fb087 | 307 | |
373fb087 GV |
308 | fetch_index = ioread32(&dc2c->wq_ctrl->fetch_index); |
309 | ||
dafc2199 | 310 | if (fetch_index == 0xFFFFFFFF) |
373fb087 GV |
311 | return -ENODEV; |
312 | ||
313 | new_posted = (posted + 1) % DEVCMD2_RING_SIZE; | |
314 | ||
315 | if (new_posted == fetch_index) { | |
e327f4e1 | 316 | vdev_neterr(vdev, "devcmd2 %d: wq is full. fetch index: %u, posted index: %u\n", |
373fb087 GV |
317 | _CMD_N(cmd), fetch_index, posted); |
318 | return -EBUSY; | |
319 | } | |
320 | dc2c->cmd_ring[posted].cmd = cmd; | |
321 | dc2c->cmd_ring[posted].flags = 0; | |
322 | ||
323 | if ((_CMD_FLAGS(cmd) & _CMD_FLAGS_NOWAIT)) | |
324 | dc2c->cmd_ring[posted].flags |= DEVCMD2_FNORESULT; | |
325 | if (_CMD_DIR(cmd) & _CMD_DIR_WRITE) | |
326 | for (i = 0; i < VNIC_DEVCMD_NARGS; i++) | |
327 | dc2c->cmd_ring[posted].args[i] = vdev->args[i]; | |
328 | ||
329 | /* Adding write memory barrier prevents compiler and/or CPU reordering, | |
330 | * thus avoiding descriptor posting before descriptor is initialized. | |
331 | * Otherwise, hardware can read stale descriptor fields. | |
332 | */ | |
333 | wmb(); | |
334 | iowrite32(new_posted, &dc2c->wq_ctrl->posted_index); | |
dafc2199 | 335 | dc2c->posted = new_posted; |
373fb087 GV |
336 | |
337 | if (dc2c->cmd_ring[posted].flags & DEVCMD2_FNORESULT) | |
338 | return 0; | |
339 | ||
ca7f41a4 SP |
340 | result = dc2c->result + dc2c->next_result; |
341 | color = dc2c->color; | |
342 | ||
343 | dc2c->next_result++; | |
344 | if (dc2c->next_result == dc2c->result_size) { | |
345 | dc2c->next_result = 0; | |
346 | dc2c->color = dc2c->color ? 0 : 1; | |
347 | } | |
348 | ||
373fb087 | 349 | for (delay = 0; delay < wait; delay++) { |
ca7f41a4 | 350 | if (result->color == color) { |
373fb087 GV |
351 | if (result->error) { |
352 | err = result->error; | |
353 | if (err != ERR_ECMDUNKNOWN || | |
354 | cmd != CMD_CAPABILITY) | |
e327f4e1 | 355 | vdev_neterr(vdev, "Error %d devcmd %d\n", |
373fb087 GV |
356 | err, _CMD_N(cmd)); |
357 | return -err; | |
358 | } | |
359 | if (_CMD_DIR(cmd) & _CMD_DIR_READ) | |
360 | for (i = 0; i < VNIC_DEVCMD2_NARGS; i++) | |
361 | vdev->args[i] = result->results[i]; | |
362 | ||
363 | return 0; | |
364 | } | |
365 | udelay(100); | |
366 | } | |
367 | ||
e327f4e1 | 368 | vdev_neterr(vdev, "devcmd %d timed out\n", _CMD_N(cmd)); |
373fb087 GV |
369 | |
370 | return -ETIMEDOUT; | |
371 | } | |
372 | ||
373 | static int vnic_dev_init_devcmd1(struct vnic_dev *vdev) | |
374 | { | |
375 | vdev->devcmd = vnic_dev_get_res(vdev, RES_TYPE_DEVCMD, 0); | |
376 | if (!vdev->devcmd) | |
377 | return -ENODEV; | |
378 | vdev->devcmd_rtn = _vnic_dev_cmd; | |
379 | ||
380 | return 0; | |
381 | } | |
382 | ||
383 | static int vnic_dev_init_devcmd2(struct vnic_dev *vdev) | |
384 | { | |
385 | int err; | |
386 | unsigned int fetch_index; | |
387 | ||
388 | if (vdev->devcmd2) | |
389 | return 0; | |
390 | ||
391 | vdev->devcmd2 = kzalloc(sizeof(*vdev->devcmd2), GFP_KERNEL); | |
392 | if (!vdev->devcmd2) | |
393 | return -ENOMEM; | |
394 | ||
395 | vdev->devcmd2->color = 1; | |
396 | vdev->devcmd2->result_size = DEVCMD2_RING_SIZE; | |
3dc33e23 | 397 | err = enic_wq_devcmd2_alloc(vdev, &vdev->devcmd2->wq, DEVCMD2_RING_SIZE, |
373fb087 GV |
398 | DEVCMD2_DESC_SIZE); |
399 | if (err) | |
400 | goto err_free_devcmd2; | |
401 | ||
402 | fetch_index = ioread32(&vdev->devcmd2->wq.ctrl->fetch_index); | |
403 | if (fetch_index == 0xFFFFFFFF) { /* check for hardware gone */ | |
e327f4e1 | 404 | vdev_err(vdev, "Fatal error in devcmd2 init - hardware surprise removal\n"); |
fdf99b3f CJ |
405 | err = -ENODEV; |
406 | goto err_free_wq; | |
373fb087 GV |
407 | } |
408 | ||
3dc33e23 | 409 | enic_wq_init_start(&vdev->devcmd2->wq, 0, fetch_index, fetch_index, 0, |
373fb087 | 410 | 0); |
dafc2199 | 411 | vdev->devcmd2->posted = fetch_index; |
373fb087 GV |
412 | vnic_wq_enable(&vdev->devcmd2->wq); |
413 | ||
414 | err = vnic_dev_alloc_desc_ring(vdev, &vdev->devcmd2->results_ring, | |
415 | DEVCMD2_RING_SIZE, DEVCMD2_DESC_SIZE); | |
416 | if (err) | |
fdf99b3f | 417 | goto err_disable_wq; |
373fb087 GV |
418 | |
419 | vdev->devcmd2->result = vdev->devcmd2->results_ring.descs; | |
420 | vdev->devcmd2->cmd_ring = vdev->devcmd2->wq.ring.descs; | |
421 | vdev->devcmd2->wq_ctrl = vdev->devcmd2->wq.ctrl; | |
422 | vdev->args[0] = (u64)vdev->devcmd2->results_ring.base_addr | | |
423 | VNIC_PADDR_TARGET; | |
424 | vdev->args[1] = DEVCMD2_RING_SIZE; | |
425 | ||
426 | err = _vnic_dev_cmd2(vdev, CMD_INITIALIZE_DEVCMD2, 1000); | |
427 | if (err) | |
428 | goto err_free_desc_ring; | |
429 | ||
430 | vdev->devcmd_rtn = _vnic_dev_cmd2; | |
431 | ||
432 | return 0; | |
433 | ||
434 | err_free_desc_ring: | |
435 | vnic_dev_free_desc_ring(vdev, &vdev->devcmd2->results_ring); | |
fdf99b3f | 436 | err_disable_wq: |
373fb087 | 437 | vnic_wq_disable(&vdev->devcmd2->wq); |
fdf99b3f | 438 | err_free_wq: |
373fb087 GV |
439 | vnic_wq_free(&vdev->devcmd2->wq); |
440 | err_free_devcmd2: | |
441 | kfree(vdev->devcmd2); | |
442 | vdev->devcmd2 = NULL; | |
443 | ||
444 | return err; | |
445 | } | |
446 | ||
447 | static void vnic_dev_deinit_devcmd2(struct vnic_dev *vdev) | |
448 | { | |
449 | vnic_dev_free_desc_ring(vdev, &vdev->devcmd2->results_ring); | |
450 | vnic_wq_disable(&vdev->devcmd2->wq); | |
451 | vnic_wq_free(&vdev->devcmd2->wq); | |
452 | kfree(vdev->devcmd2); | |
453 | } | |
454 | ||
889d13f5 RP |
455 | static int vnic_dev_cmd_proxy(struct vnic_dev *vdev, |
456 | enum vnic_devcmd_cmd proxy_cmd, enum vnic_devcmd_cmd cmd, | |
457 | u64 *a0, u64 *a1, int wait) | |
70feadf3 VK |
458 | { |
459 | u32 status; | |
460 | int err; | |
461 | ||
462 | memset(vdev->args, 0, sizeof(vdev->args)); | |
463 | ||
889d13f5 | 464 | vdev->args[0] = vdev->proxy_index; |
70feadf3 VK |
465 | vdev->args[1] = cmd; |
466 | vdev->args[2] = *a0; | |
467 | vdev->args[3] = *a1; | |
468 | ||
373fb087 | 469 | err = vdev->devcmd_rtn(vdev, proxy_cmd, wait); |
70feadf3 VK |
470 | if (err) |
471 | return err; | |
472 | ||
473 | status = (u32)vdev->args[0]; | |
474 | if (status & STAT_ERROR) { | |
475 | err = (int)vdev->args[1]; | |
476 | if (err != ERR_ECMDUNKNOWN || | |
477 | cmd != CMD_CAPABILITY) | |
e327f4e1 JP |
478 | vdev_neterr(vdev, "Error %d proxy devcmd %d\n", |
479 | err, _CMD_N(cmd)); | |
70feadf3 VK |
480 | return err; |
481 | } | |
482 | ||
483 | *a0 = vdev->args[1]; | |
484 | *a1 = vdev->args[2]; | |
485 | ||
486 | return 0; | |
487 | } | |
488 | ||
489 | static int vnic_dev_cmd_no_proxy(struct vnic_dev *vdev, | |
490 | enum vnic_devcmd_cmd cmd, u64 *a0, u64 *a1, int wait) | |
491 | { | |
492 | int err; | |
493 | ||
494 | vdev->args[0] = *a0; | |
495 | vdev->args[1] = *a1; | |
496 | ||
373fb087 | 497 | err = vdev->devcmd_rtn(vdev, cmd, wait); |
70feadf3 VK |
498 | |
499 | *a0 = vdev->args[0]; | |
500 | *a1 = vdev->args[1]; | |
501 | ||
502 | return err; | |
503 | } | |
504 | ||
889d13f5 RP |
505 | void vnic_dev_cmd_proxy_by_index_start(struct vnic_dev *vdev, u16 index) |
506 | { | |
507 | vdev->proxy = PROXY_BY_INDEX; | |
508 | vdev->proxy_index = index; | |
509 | } | |
510 | ||
511 | void vnic_dev_cmd_proxy_end(struct vnic_dev *vdev) | |
512 | { | |
513 | vdev->proxy = PROXY_NONE; | |
514 | vdev->proxy_index = 0; | |
515 | } | |
516 | ||
70feadf3 VK |
517 | int vnic_dev_cmd(struct vnic_dev *vdev, enum vnic_devcmd_cmd cmd, |
518 | u64 *a0, u64 *a1, int wait) | |
519 | { | |
520 | memset(vdev->args, 0, sizeof(vdev->args)); | |
521 | ||
522 | switch (vdev->proxy) { | |
889d13f5 RP |
523 | case PROXY_BY_INDEX: |
524 | return vnic_dev_cmd_proxy(vdev, CMD_PROXY_BY_INDEX, cmd, | |
525 | a0, a1, wait); | |
70feadf3 | 526 | case PROXY_BY_BDF: |
889d13f5 RP |
527 | return vnic_dev_cmd_proxy(vdev, CMD_PROXY_BY_BDF, cmd, |
528 | a0, a1, wait); | |
70feadf3 VK |
529 | case PROXY_NONE: |
530 | default: | |
531 | return vnic_dev_cmd_no_proxy(vdev, cmd, a0, a1, wait); | |
532 | } | |
533 | } | |
534 | ||
5e4232ee | 535 | static int vnic_dev_capable(struct vnic_dev *vdev, enum vnic_devcmd_cmd cmd) |
27372bf5 SF |
536 | { |
537 | u64 a0 = (u32)cmd, a1 = 0; | |
538 | int wait = 1000; | |
539 | int err; | |
540 | ||
541 | err = vnic_dev_cmd(vdev, CMD_CAPABILITY, &a0, &a1, wait); | |
542 | ||
543 | return !(err || a0); | |
544 | } | |
545 | ||
01f2e4ea SF |
546 | int vnic_dev_fw_info(struct vnic_dev *vdev, |
547 | struct vnic_devcmd_fw_info **fw_info) | |
548 | { | |
549 | u64 a0, a1 = 0; | |
550 | int wait = 1000; | |
551 | int err = 0; | |
552 | ||
553 | if (!vdev->fw_info) { | |
87f44b4e JP |
554 | vdev->fw_info = pci_zalloc_consistent(vdev->pdev, |
555 | sizeof(struct vnic_devcmd_fw_info), | |
556 | &vdev->fw_info_pa); | |
01f2e4ea SF |
557 | if (!vdev->fw_info) |
558 | return -ENOMEM; | |
559 | ||
560 | a0 = vdev->fw_info_pa; | |
ea0f0d8b | 561 | a1 = sizeof(struct vnic_devcmd_fw_info); |
01f2e4ea SF |
562 | |
563 | /* only get fw_info once and cache it */ | |
f8a6dd59 NP |
564 | if (vnic_dev_capable(vdev, CMD_MCPU_FW_INFO)) |
565 | err = vnic_dev_cmd(vdev, CMD_MCPU_FW_INFO, | |
566 | &a0, &a1, wait); | |
567 | else | |
ea0f0d8b VK |
568 | err = vnic_dev_cmd(vdev, CMD_MCPU_FW_INFO_OLD, |
569 | &a0, &a1, wait); | |
01f2e4ea SF |
570 | } |
571 | ||
572 | *fw_info = vdev->fw_info; | |
573 | ||
574 | return err; | |
575 | } | |
576 | ||
577 | int vnic_dev_spec(struct vnic_dev *vdev, unsigned int offset, unsigned int size, | |
578 | void *value) | |
579 | { | |
580 | u64 a0, a1; | |
581 | int wait = 1000; | |
582 | int err; | |
583 | ||
584 | a0 = offset; | |
585 | a1 = size; | |
586 | ||
587 | err = vnic_dev_cmd(vdev, CMD_DEV_SPEC, &a0, &a1, wait); | |
588 | ||
589 | switch (size) { | |
590 | case 1: *(u8 *)value = (u8)a0; break; | |
591 | case 2: *(u16 *)value = (u16)a0; break; | |
592 | case 4: *(u32 *)value = (u32)a0; break; | |
593 | case 8: *(u64 *)value = a0; break; | |
594 | default: BUG(); break; | |
595 | } | |
596 | ||
597 | return err; | |
598 | } | |
599 | ||
01f2e4ea SF |
600 | int vnic_dev_stats_dump(struct vnic_dev *vdev, struct vnic_stats **stats) |
601 | { | |
602 | u64 a0, a1; | |
603 | int wait = 1000; | |
604 | ||
605 | if (!vdev->stats) { | |
606 | vdev->stats = pci_alloc_consistent(vdev->pdev, | |
607 | sizeof(struct vnic_stats), &vdev->stats_pa); | |
608 | if (!vdev->stats) | |
609 | return -ENOMEM; | |
610 | } | |
611 | ||
612 | *stats = vdev->stats; | |
613 | a0 = vdev->stats_pa; | |
614 | a1 = sizeof(struct vnic_stats); | |
615 | ||
616 | return vnic_dev_cmd(vdev, CMD_STATS_DUMP, &a0, &a1, wait); | |
617 | } | |
618 | ||
619 | int vnic_dev_close(struct vnic_dev *vdev) | |
620 | { | |
621 | u64 a0 = 0, a1 = 0; | |
622 | int wait = 1000; | |
623 | return vnic_dev_cmd(vdev, CMD_CLOSE, &a0, &a1, wait); | |
624 | } | |
625 | ||
2db77e0f | 626 | int vnic_dev_enable_wait(struct vnic_dev *vdev) |
01f2e4ea SF |
627 | { |
628 | u64 a0 = 0, a1 = 0; | |
629 | int wait = 1000; | |
2db77e0f | 630 | |
f8a6dd59 NP |
631 | if (vnic_dev_capable(vdev, CMD_ENABLE_WAIT)) |
632 | return vnic_dev_cmd(vdev, CMD_ENABLE_WAIT, &a0, &a1, wait); | |
633 | else | |
2db77e0f | 634 | return vnic_dev_cmd(vdev, CMD_ENABLE, &a0, &a1, wait); |
01f2e4ea SF |
635 | } |
636 | ||
637 | int vnic_dev_disable(struct vnic_dev *vdev) | |
638 | { | |
639 | u64 a0 = 0, a1 = 0; | |
640 | int wait = 1000; | |
641 | return vnic_dev_cmd(vdev, CMD_DISABLE, &a0, &a1, wait); | |
642 | } | |
643 | ||
644 | int vnic_dev_open(struct vnic_dev *vdev, int arg) | |
645 | { | |
646 | u64 a0 = (u32)arg, a1 = 0; | |
647 | int wait = 1000; | |
648 | return vnic_dev_cmd(vdev, CMD_OPEN, &a0, &a1, wait); | |
649 | } | |
650 | ||
651 | int vnic_dev_open_done(struct vnic_dev *vdev, int *done) | |
652 | { | |
653 | u64 a0 = 0, a1 = 0; | |
654 | int wait = 1000; | |
655 | int err; | |
656 | ||
657 | *done = 0; | |
658 | ||
659 | err = vnic_dev_cmd(vdev, CMD_OPEN_STATUS, &a0, &a1, wait); | |
660 | if (err) | |
661 | return err; | |
662 | ||
663 | *done = (a0 == 0); | |
664 | ||
665 | return 0; | |
666 | } | |
667 | ||
937317c7 | 668 | int vnic_dev_soft_reset(struct vnic_dev *vdev, int arg) |
01f2e4ea SF |
669 | { |
670 | u64 a0 = (u32)arg, a1 = 0; | |
671 | int wait = 1000; | |
672 | return vnic_dev_cmd(vdev, CMD_SOFT_RESET, &a0, &a1, wait); | |
673 | } | |
674 | ||
937317c7 | 675 | int vnic_dev_soft_reset_done(struct vnic_dev *vdev, int *done) |
01f2e4ea SF |
676 | { |
677 | u64 a0 = 0, a1 = 0; | |
678 | int wait = 1000; | |
679 | int err; | |
680 | ||
681 | *done = 0; | |
682 | ||
683 | err = vnic_dev_cmd(vdev, CMD_SOFT_RESET_STATUS, &a0, &a1, wait); | |
684 | if (err) | |
685 | return err; | |
686 | ||
687 | *done = (a0 == 0); | |
688 | ||
689 | return 0; | |
690 | } | |
691 | ||
99ef5639 VK |
692 | int vnic_dev_hang_reset(struct vnic_dev *vdev, int arg) |
693 | { | |
694 | u64 a0 = (u32)arg, a1 = 0; | |
695 | int wait = 1000; | |
696 | int err; | |
697 | ||
f8a6dd59 NP |
698 | if (vnic_dev_capable(vdev, CMD_HANG_RESET)) { |
699 | return vnic_dev_cmd(vdev, CMD_HANG_RESET, | |
700 | &a0, &a1, wait); | |
701 | } else { | |
99ef5639 VK |
702 | err = vnic_dev_soft_reset(vdev, arg); |
703 | if (err) | |
704 | return err; | |
99ef5639 VK |
705 | return vnic_dev_init(vdev, 0); |
706 | } | |
99ef5639 VK |
707 | } |
708 | ||
709 | int vnic_dev_hang_reset_done(struct vnic_dev *vdev, int *done) | |
710 | { | |
711 | u64 a0 = 0, a1 = 0; | |
712 | int wait = 1000; | |
713 | int err; | |
714 | ||
715 | *done = 0; | |
716 | ||
f8a6dd59 NP |
717 | if (vnic_dev_capable(vdev, CMD_HANG_RESET_STATUS)) { |
718 | err = vnic_dev_cmd(vdev, CMD_HANG_RESET_STATUS, | |
719 | &a0, &a1, wait); | |
720 | if (err) | |
721 | return err; | |
722 | } else { | |
723 | return vnic_dev_soft_reset_done(vdev, done); | |
99ef5639 VK |
724 | } |
725 | ||
726 | *done = (a0 == 0); | |
727 | ||
728 | return 0; | |
729 | } | |
730 | ||
01f2e4ea SF |
731 | int vnic_dev_hang_notify(struct vnic_dev *vdev) |
732 | { | |
733 | u64 a0, a1; | |
734 | int wait = 1000; | |
735 | return vnic_dev_cmd(vdev, CMD_HANG_NOTIFY, &a0, &a1, wait); | |
736 | } | |
737 | ||
b13423ee | 738 | int vnic_dev_get_mac_addr(struct vnic_dev *vdev, u8 *mac_addr) |
01f2e4ea SF |
739 | { |
740 | u64 a0, a1; | |
741 | int wait = 1000; | |
742 | int err, i; | |
743 | ||
744 | for (i = 0; i < ETH_ALEN; i++) | |
745 | mac_addr[i] = 0; | |
746 | ||
b13423ee | 747 | err = vnic_dev_cmd(vdev, CMD_GET_MAC_ADDR, &a0, &a1, wait); |
01f2e4ea SF |
748 | if (err) |
749 | return err; | |
750 | ||
751 | for (i = 0; i < ETH_ALEN; i++) | |
752 | mac_addr[i] = ((u8 *)&a0)[i]; | |
753 | ||
754 | return 0; | |
755 | } | |
756 | ||
383ab92f | 757 | int vnic_dev_packet_filter(struct vnic_dev *vdev, int directed, int multicast, |
01f2e4ea SF |
758 | int broadcast, int promisc, int allmulti) |
759 | { | |
760 | u64 a0, a1 = 0; | |
761 | int wait = 1000; | |
762 | int err; | |
763 | ||
764 | a0 = (directed ? CMD_PFILTER_DIRECTED : 0) | | |
765 | (multicast ? CMD_PFILTER_MULTICAST : 0) | | |
766 | (broadcast ? CMD_PFILTER_BROADCAST : 0) | | |
767 | (promisc ? CMD_PFILTER_PROMISCUOUS : 0) | | |
768 | (allmulti ? CMD_PFILTER_ALL_MULTICAST : 0); | |
769 | ||
770 | err = vnic_dev_cmd(vdev, CMD_PACKET_FILTER, &a0, &a1, wait); | |
771 | if (err) | |
e327f4e1 | 772 | vdev_neterr(vdev, "Can't set packet filter\n"); |
383ab92f VK |
773 | |
774 | return err; | |
01f2e4ea SF |
775 | } |
776 | ||
f009618a | 777 | int vnic_dev_add_addr(struct vnic_dev *vdev, const u8 *addr) |
01f2e4ea SF |
778 | { |
779 | u64 a0 = 0, a1 = 0; | |
780 | int wait = 1000; | |
781 | int err; | |
782 | int i; | |
783 | ||
784 | for (i = 0; i < ETH_ALEN; i++) | |
785 | ((u8 *)&a0)[i] = addr[i]; | |
786 | ||
787 | err = vnic_dev_cmd(vdev, CMD_ADDR_ADD, &a0, &a1, wait); | |
788 | if (err) | |
e327f4e1 | 789 | vdev_neterr(vdev, "Can't add addr [%pM], %d\n", addr, err); |
f8bd9091 SF |
790 | |
791 | return err; | |
01f2e4ea SF |
792 | } |
793 | ||
f009618a | 794 | int vnic_dev_del_addr(struct vnic_dev *vdev, const u8 *addr) |
01f2e4ea SF |
795 | { |
796 | u64 a0 = 0, a1 = 0; | |
797 | int wait = 1000; | |
798 | int err; | |
799 | int i; | |
800 | ||
801 | for (i = 0; i < ETH_ALEN; i++) | |
802 | ((u8 *)&a0)[i] = addr[i]; | |
803 | ||
804 | err = vnic_dev_cmd(vdev, CMD_ADDR_DEL, &a0, &a1, wait); | |
805 | if (err) | |
e327f4e1 | 806 | vdev_neterr(vdev, "Can't del addr [%pM], %d\n", addr, err); |
f8bd9091 SF |
807 | |
808 | return err; | |
01f2e4ea SF |
809 | } |
810 | ||
f8cac14a VK |
811 | int vnic_dev_set_ig_vlan_rewrite_mode(struct vnic_dev *vdev, |
812 | u8 ig_vlan_rewrite_mode) | |
813 | { | |
814 | u64 a0 = ig_vlan_rewrite_mode, a1 = 0; | |
815 | int wait = 1000; | |
f8cac14a | 816 | |
f8a6dd59 NP |
817 | if (vnic_dev_capable(vdev, CMD_IG_VLAN_REWRITE_MODE)) |
818 | return vnic_dev_cmd(vdev, CMD_IG_VLAN_REWRITE_MODE, | |
819 | &a0, &a1, wait); | |
820 | else | |
f8cac14a | 821 | return 0; |
f8cac14a VK |
822 | } |
823 | ||
2fdba388 | 824 | static int vnic_dev_notify_setcmd(struct vnic_dev *vdev, |
d883aa76 | 825 | void *notify_addr, dma_addr_t notify_pa, u16 intr) |
01f2e4ea SF |
826 | { |
827 | u64 a0, a1; | |
828 | int wait = 1000; | |
27372bf5 | 829 | int r; |
01f2e4ea | 830 | |
d883aa76 VK |
831 | memset(notify_addr, 0, sizeof(struct vnic_devcmd_notify)); |
832 | vdev->notify = notify_addr; | |
833 | vdev->notify_pa = notify_pa; | |
01f2e4ea | 834 | |
d883aa76 | 835 | a0 = (u64)notify_pa; |
01f2e4ea SF |
836 | a1 = ((u64)intr << 32) & 0x0000ffff00000000ULL; |
837 | a1 += sizeof(struct vnic_devcmd_notify); | |
838 | ||
27372bf5 SF |
839 | r = vnic_dev_cmd(vdev, CMD_NOTIFY, &a0, &a1, wait); |
840 | vdev->notify_sz = (r == 0) ? (u32)a1 : 0; | |
841 | return r; | |
01f2e4ea SF |
842 | } |
843 | ||
d883aa76 VK |
844 | int vnic_dev_notify_set(struct vnic_dev *vdev, u16 intr) |
845 | { | |
846 | void *notify_addr; | |
847 | dma_addr_t notify_pa; | |
848 | ||
849 | if (vdev->notify || vdev->notify_pa) { | |
e327f4e1 JP |
850 | vdev_neterr(vdev, "notify block %p still allocated\n", |
851 | vdev->notify); | |
d883aa76 VK |
852 | return -EINVAL; |
853 | } | |
854 | ||
855 | notify_addr = pci_alloc_consistent(vdev->pdev, | |
856 | sizeof(struct vnic_devcmd_notify), | |
857 | ¬ify_pa); | |
858 | if (!notify_addr) | |
859 | return -ENOMEM; | |
860 | ||
861 | return vnic_dev_notify_setcmd(vdev, notify_addr, notify_pa, intr); | |
862 | } | |
863 | ||
2fdba388 | 864 | static int vnic_dev_notify_unsetcmd(struct vnic_dev *vdev) |
01f2e4ea SF |
865 | { |
866 | u64 a0, a1; | |
867 | int wait = 1000; | |
383ab92f | 868 | int err; |
01f2e4ea SF |
869 | |
870 | a0 = 0; /* paddr = 0 to unset notify buffer */ | |
871 | a1 = 0x0000ffff00000000ULL; /* intr num = -1 to unreg for intr */ | |
872 | a1 += sizeof(struct vnic_devcmd_notify); | |
873 | ||
383ab92f | 874 | err = vnic_dev_cmd(vdev, CMD_NOTIFY, &a0, &a1, wait); |
d883aa76 VK |
875 | vdev->notify = NULL; |
876 | vdev->notify_pa = 0; | |
27372bf5 | 877 | vdev->notify_sz = 0; |
383ab92f VK |
878 | |
879 | return err; | |
01f2e4ea SF |
880 | } |
881 | ||
383ab92f | 882 | int vnic_dev_notify_unset(struct vnic_dev *vdev) |
d883aa76 VK |
883 | { |
884 | if (vdev->notify) { | |
885 | pci_free_consistent(vdev->pdev, | |
886 | sizeof(struct vnic_devcmd_notify), | |
887 | vdev->notify, | |
888 | vdev->notify_pa); | |
889 | } | |
890 | ||
383ab92f | 891 | return vnic_dev_notify_unsetcmd(vdev); |
d883aa76 VK |
892 | } |
893 | ||
01f2e4ea SF |
894 | static int vnic_dev_notify_ready(struct vnic_dev *vdev) |
895 | { | |
896 | u32 *words; | |
27372bf5 | 897 | unsigned int nwords = vdev->notify_sz / 4; |
01f2e4ea SF |
898 | unsigned int i; |
899 | u32 csum; | |
900 | ||
27372bf5 | 901 | if (!vdev->notify || !vdev->notify_sz) |
01f2e4ea SF |
902 | return 0; |
903 | ||
904 | do { | |
905 | csum = 0; | |
27372bf5 | 906 | memcpy(&vdev->notify_copy, vdev->notify, vdev->notify_sz); |
01f2e4ea SF |
907 | words = (u32 *)&vdev->notify_copy; |
908 | for (i = 1; i < nwords; i++) | |
909 | csum += words[i]; | |
910 | } while (csum != words[0]); | |
911 | ||
912 | return 1; | |
913 | } | |
914 | ||
915 | int vnic_dev_init(struct vnic_dev *vdev, int arg) | |
916 | { | |
917 | u64 a0 = (u32)arg, a1 = 0; | |
918 | int wait = 1000; | |
4cdc44a2 | 919 | int r = 0; |
27372bf5 | 920 | |
29046f9b | 921 | if (vnic_dev_capable(vdev, CMD_INIT)) |
27372bf5 SF |
922 | r = vnic_dev_cmd(vdev, CMD_INIT, &a0, &a1, wait); |
923 | else { | |
924 | vnic_dev_cmd(vdev, CMD_INIT_v1, &a0, &a1, wait); | |
925 | if (a0 & CMD_INITF_DEFAULT_MAC) { | |
70feadf3 VK |
926 | /* Emulate these for old CMD_INIT_v1 which |
927 | * didn't pass a0 so no CMD_INITF_*. | |
928 | */ | |
b13423ee | 929 | vnic_dev_cmd(vdev, CMD_GET_MAC_ADDR, &a0, &a1, wait); |
27372bf5 SF |
930 | vnic_dev_cmd(vdev, CMD_ADDR_ADD, &a0, &a1, wait); |
931 | } | |
4cdc44a2 SF |
932 | } |
933 | return r; | |
01f2e4ea SF |
934 | } |
935 | ||
f8bd9091 SF |
936 | int vnic_dev_deinit(struct vnic_dev *vdev) |
937 | { | |
938 | u64 a0 = 0, a1 = 0; | |
939 | int wait = 1000; | |
940 | ||
941 | return vnic_dev_cmd(vdev, CMD_DEINIT, &a0, &a1, wait); | |
942 | } | |
943 | ||
ea7ea65a VK |
944 | void vnic_dev_intr_coal_timer_info_default(struct vnic_dev *vdev) |
945 | { | |
946 | /* Default: hardware intr coal timer is in units of 1.5 usecs */ | |
947 | vdev->intr_coal_timer_info.mul = 2; | |
948 | vdev->intr_coal_timer_info.div = 3; | |
949 | vdev->intr_coal_timer_info.max_usec = | |
950 | vnic_dev_intr_coal_timer_hw_to_usec(vdev, 0xffff); | |
951 | } | |
952 | ||
953 | int vnic_dev_intr_coal_timer_info(struct vnic_dev *vdev) | |
954 | { | |
955 | int wait = 1000; | |
956 | int err; | |
957 | ||
958 | memset(vdev->args, 0, sizeof(vdev->args)); | |
959 | ||
f8a6dd59 | 960 | if (vnic_dev_capable(vdev, CMD_INTR_COAL_CONVERT)) |
373fb087 | 961 | err = vdev->devcmd_rtn(vdev, CMD_INTR_COAL_CONVERT, wait); |
f8a6dd59 NP |
962 | else |
963 | err = ERR_ECMDUNKNOWN; | |
ea7ea65a VK |
964 | |
965 | /* Use defaults when firmware doesn't support the devcmd at all or | |
966 | * supports it for only specific hardware | |
967 | */ | |
968 | if ((err == ERR_ECMDUNKNOWN) || | |
969 | (!err && !(vdev->args[0] && vdev->args[1] && vdev->args[2]))) { | |
e327f4e1 | 970 | vdev_netwarn(vdev, "Using default conversion factor for interrupt coalesce timer\n"); |
ea7ea65a VK |
971 | vnic_dev_intr_coal_timer_info_default(vdev); |
972 | return 0; | |
973 | } | |
974 | ||
f8a6dd59 NP |
975 | if (!err) { |
976 | vdev->intr_coal_timer_info.mul = (u32) vdev->args[0]; | |
977 | vdev->intr_coal_timer_info.div = (u32) vdev->args[1]; | |
978 | vdev->intr_coal_timer_info.max_usec = (u32) vdev->args[2]; | |
979 | } | |
ea7ea65a VK |
980 | |
981 | return err; | |
982 | } | |
983 | ||
01f2e4ea SF |
984 | int vnic_dev_link_status(struct vnic_dev *vdev) |
985 | { | |
01f2e4ea SF |
986 | if (!vnic_dev_notify_ready(vdev)) |
987 | return 0; | |
988 | ||
989 | return vdev->notify_copy.link_state; | |
990 | } | |
991 | ||
992 | u32 vnic_dev_port_speed(struct vnic_dev *vdev) | |
993 | { | |
994 | if (!vnic_dev_notify_ready(vdev)) | |
995 | return 0; | |
996 | ||
997 | return vdev->notify_copy.port_speed; | |
998 | } | |
999 | ||
1000 | u32 vnic_dev_msg_lvl(struct vnic_dev *vdev) | |
1001 | { | |
1002 | if (!vnic_dev_notify_ready(vdev)) | |
1003 | return 0; | |
1004 | ||
1005 | return vdev->notify_copy.msglvl; | |
1006 | } | |
1007 | ||
1008 | u32 vnic_dev_mtu(struct vnic_dev *vdev) | |
1009 | { | |
1010 | if (!vnic_dev_notify_ready(vdev)) | |
1011 | return 0; | |
1012 | ||
1013 | return vdev->notify_copy.mtu; | |
1014 | } | |
1015 | ||
1016 | void vnic_dev_set_intr_mode(struct vnic_dev *vdev, | |
1017 | enum vnic_dev_intr_mode intr_mode) | |
1018 | { | |
1019 | vdev->intr_mode = intr_mode; | |
1020 | } | |
1021 | ||
1022 | enum vnic_dev_intr_mode vnic_dev_get_intr_mode( | |
1023 | struct vnic_dev *vdev) | |
1024 | { | |
1025 | return vdev->intr_mode; | |
1026 | } | |
1027 | ||
ea7ea65a VK |
1028 | u32 vnic_dev_intr_coal_timer_usec_to_hw(struct vnic_dev *vdev, u32 usec) |
1029 | { | |
1030 | return (usec * vdev->intr_coal_timer_info.mul) / | |
1031 | vdev->intr_coal_timer_info.div; | |
1032 | } | |
1033 | ||
1034 | u32 vnic_dev_intr_coal_timer_hw_to_usec(struct vnic_dev *vdev, u32 hw_cycles) | |
1035 | { | |
1036 | return (hw_cycles * vdev->intr_coal_timer_info.div) / | |
1037 | vdev->intr_coal_timer_info.mul; | |
1038 | } | |
1039 | ||
1040 | u32 vnic_dev_get_intr_coal_timer_max(struct vnic_dev *vdev) | |
1041 | { | |
1042 | return vdev->intr_coal_timer_info.max_usec; | |
1043 | } | |
1044 | ||
01f2e4ea SF |
1045 | void vnic_dev_unregister(struct vnic_dev *vdev) |
1046 | { | |
1047 | if (vdev) { | |
1048 | if (vdev->notify) | |
1049 | pci_free_consistent(vdev->pdev, | |
1050 | sizeof(struct vnic_devcmd_notify), | |
1051 | vdev->notify, | |
1052 | vdev->notify_pa); | |
01f2e4ea SF |
1053 | if (vdev->stats) |
1054 | pci_free_consistent(vdev->pdev, | |
29046f9b | 1055 | sizeof(struct vnic_stats), |
01f2e4ea SF |
1056 | vdev->stats, vdev->stats_pa); |
1057 | if (vdev->fw_info) | |
1058 | pci_free_consistent(vdev->pdev, | |
1059 | sizeof(struct vnic_devcmd_fw_info), | |
1060 | vdev->fw_info, vdev->fw_info_pa); | |
373fb087 GV |
1061 | if (vdev->devcmd2) |
1062 | vnic_dev_deinit_devcmd2(vdev); | |
1063 | ||
01f2e4ea SF |
1064 | kfree(vdev); |
1065 | } | |
1066 | } | |
4a50ddfd | 1067 | EXPORT_SYMBOL(vnic_dev_unregister); |
01f2e4ea SF |
1068 | |
1069 | struct vnic_dev *vnic_dev_register(struct vnic_dev *vdev, | |
27e6c7d3 SF |
1070 | void *priv, struct pci_dev *pdev, struct vnic_dev_bar *bar, |
1071 | unsigned int num_bars) | |
01f2e4ea SF |
1072 | { |
1073 | if (!vdev) { | |
1074 | vdev = kzalloc(sizeof(struct vnic_dev), GFP_ATOMIC); | |
1075 | if (!vdev) | |
1076 | return NULL; | |
1077 | } | |
1078 | ||
1079 | vdev->priv = priv; | |
1080 | vdev->pdev = pdev; | |
1081 | ||
27e6c7d3 | 1082 | if (vnic_dev_discover_res(vdev, bar, num_bars)) |
01f2e4ea SF |
1083 | goto err_out; |
1084 | ||
01f2e4ea SF |
1085 | return vdev; |
1086 | ||
1087 | err_out: | |
1088 | vnic_dev_unregister(vdev); | |
1089 | return NULL; | |
1090 | } | |
4a50ddfd | 1091 | EXPORT_SYMBOL(vnic_dev_register); |
1092 | ||
1093 | struct pci_dev *vnic_dev_get_pdev(struct vnic_dev *vdev) | |
1094 | { | |
1095 | return vdev->pdev; | |
1096 | } | |
1097 | EXPORT_SYMBOL(vnic_dev_get_pdev); | |
01f2e4ea | 1098 | |
373fb087 GV |
1099 | int vnic_devcmd_init(struct vnic_dev *vdev) |
1100 | { | |
f376d4ad | 1101 | void __iomem *res; |
373fb087 | 1102 | int err; |
373fb087 GV |
1103 | |
1104 | res = vnic_dev_get_res(vdev, RES_TYPE_DEVCMD2, 0); | |
1105 | if (res) { | |
1106 | err = vnic_dev_init_devcmd2(vdev); | |
1107 | if (err) | |
e327f4e1 | 1108 | vdev_warn(vdev, "DEVCMD2 init failed: %d, Using DEVCMD1\n", |
373fb087 GV |
1109 | err); |
1110 | else | |
1111 | return 0; | |
1112 | } else { | |
e327f4e1 | 1113 | vdev_warn(vdev, "DEVCMD2 resource not found (old firmware?) Using DEVCMD1\n"); |
373fb087 GV |
1114 | } |
1115 | err = vnic_dev_init_devcmd1(vdev); | |
1116 | if (err) | |
e327f4e1 | 1117 | vdev_err(vdev, "DEVCMD1 initialization failed: %d\n", err); |
373fb087 GV |
1118 | |
1119 | return err; | |
1120 | } | |
1121 | ||
9085fd09 RP |
1122 | int vnic_dev_init_prov2(struct vnic_dev *vdev, u8 *buf, u32 len) |
1123 | { | |
1124 | u64 a0, a1 = len; | |
1125 | int wait = 1000; | |
1126 | dma_addr_t prov_pa; | |
1127 | void *prov_buf; | |
1128 | int ret; | |
1129 | ||
1130 | prov_buf = pci_alloc_consistent(vdev->pdev, len, &prov_pa); | |
1131 | if (!prov_buf) | |
1132 | return -ENOMEM; | |
27372bf5 | 1133 | |
9085fd09 RP |
1134 | memcpy(prov_buf, buf, len); |
1135 | ||
1136 | a0 = prov_pa; | |
1137 | ||
1138 | ret = vnic_dev_cmd(vdev, CMD_INIT_PROV_INFO2, &a0, &a1, wait); | |
1139 | ||
1140 | pci_free_consistent(vdev->pdev, len, prov_buf, prov_pa); | |
1141 | ||
1142 | return ret; | |
1143 | } | |
1144 | ||
1145 | int vnic_dev_enable2(struct vnic_dev *vdev, int active) | |
1146 | { | |
1147 | u64 a0, a1 = 0; | |
1148 | int wait = 1000; | |
1149 | ||
1150 | a0 = (active ? CMD_ENABLE2_ACTIVE : 0); | |
1151 | ||
1152 | return vnic_dev_cmd(vdev, CMD_ENABLE2, &a0, &a1, wait); | |
1153 | } | |
1154 | ||
1155 | static int vnic_dev_cmd_status(struct vnic_dev *vdev, enum vnic_devcmd_cmd cmd, | |
1156 | int *status) | |
1157 | { | |
1158 | u64 a0 = cmd, a1 = 0; | |
1159 | int wait = 1000; | |
1160 | int ret; | |
1161 | ||
1162 | ret = vnic_dev_cmd(vdev, CMD_STATUS, &a0, &a1, wait); | |
1163 | if (!ret) | |
1164 | *status = (int)a0; | |
1165 | ||
1166 | return ret; | |
1167 | } | |
1168 | ||
1169 | int vnic_dev_enable2_done(struct vnic_dev *vdev, int *status) | |
1170 | { | |
1171 | return vnic_dev_cmd_status(vdev, CMD_ENABLE2, status); | |
1172 | } | |
1173 | ||
1174 | int vnic_dev_deinit_done(struct vnic_dev *vdev, int *status) | |
1175 | { | |
1176 | return vnic_dev_cmd_status(vdev, CMD_DEINIT, status); | |
1177 | } | |
d6c81bc6 RP |
1178 | |
1179 | int vnic_dev_set_mac_addr(struct vnic_dev *vdev, u8 *mac_addr) | |
1180 | { | |
1181 | u64 a0, a1; | |
1182 | int wait = 1000; | |
1183 | int i; | |
1184 | ||
1185 | for (i = 0; i < ETH_ALEN; i++) | |
1186 | ((u8 *)&a0)[i] = mac_addr[i]; | |
1187 | ||
1188 | return vnic_dev_cmd(vdev, CMD_SET_MAC_ADDR, &a0, &a1, wait); | |
1189 | } | |
63118527 GV |
1190 | |
1191 | /* vnic_dev_classifier: Add/Delete classifier entries | |
1192 | * @vdev: vdev of the device | |
1193 | * @cmd: CLSF_ADD for Add filter | |
1194 | * CLSF_DEL for Delete filter | |
1195 | * @entry: In case of ADD filter, the caller passes the RQ number in this | |
1196 | * variable. | |
1197 | * | |
1198 | * This function stores the filter_id returned by the firmware in the | |
1199 | * same variable before return; | |
1200 | * | |
1201 | * In case of DEL filter, the caller passes the RQ number. Return | |
1202 | * value is irrelevant. | |
1203 | * @data: filter data | |
1204 | */ | |
1205 | int vnic_dev_classifier(struct vnic_dev *vdev, u8 cmd, u16 *entry, | |
1206 | struct filter *data) | |
1207 | { | |
1208 | u64 a0, a1; | |
1209 | int wait = 1000; | |
1210 | dma_addr_t tlv_pa; | |
1211 | int ret = -EINVAL; | |
1212 | struct filter_tlv *tlv, *tlv_va; | |
1213 | struct filter_action *action; | |
1214 | u64 tlv_size; | |
1215 | ||
1216 | if (cmd == CLSF_ADD) { | |
1217 | tlv_size = sizeof(struct filter) + | |
1218 | sizeof(struct filter_action) + | |
1219 | 2 * sizeof(struct filter_tlv); | |
1220 | tlv_va = pci_alloc_consistent(vdev->pdev, tlv_size, &tlv_pa); | |
1221 | if (!tlv_va) | |
1222 | return -ENOMEM; | |
1223 | tlv = tlv_va; | |
1224 | a0 = tlv_pa; | |
1225 | a1 = tlv_size; | |
1226 | memset(tlv, 0, tlv_size); | |
1227 | tlv->type = CLSF_TLV_FILTER; | |
1228 | tlv->length = sizeof(struct filter); | |
1229 | *(struct filter *)&tlv->val = *data; | |
1230 | ||
1231 | tlv = (struct filter_tlv *)((char *)tlv + | |
1232 | sizeof(struct filter_tlv) + | |
1233 | sizeof(struct filter)); | |
1234 | ||
1235 | tlv->type = CLSF_TLV_ACTION; | |
1236 | tlv->length = sizeof(struct filter_action); | |
1237 | action = (struct filter_action *)&tlv->val; | |
1238 | action->type = FILTER_ACTION_RQ_STEERING; | |
1239 | action->u.rq_idx = *entry; | |
1240 | ||
1241 | ret = vnic_dev_cmd(vdev, CMD_ADD_FILTER, &a0, &a1, wait); | |
1242 | *entry = (u16)a0; | |
1243 | pci_free_consistent(vdev->pdev, tlv_size, tlv_va, tlv_pa); | |
1244 | } else if (cmd == CLSF_DEL) { | |
1245 | a0 = *entry; | |
1246 | ret = vnic_dev_cmd(vdev, CMD_DEL_FILTER, &a0, &a1, wait); | |
1247 | } | |
1248 | ||
1249 | return ret; | |
1250 | } | |
ca029179 GV |
1251 | |
1252 | int vnic_dev_overlay_offload_ctrl(struct vnic_dev *vdev, u8 overlay, u8 config) | |
1253 | { | |
1254 | u64 a0 = overlay; | |
1255 | u64 a1 = config; | |
1256 | int wait = 1000; | |
1257 | ||
1258 | return vnic_dev_cmd(vdev, CMD_OVERLAY_OFFLOAD_CTRL, &a0, &a1, wait); | |
1259 | } | |
1260 | ||
1261 | int vnic_dev_overlay_offload_cfg(struct vnic_dev *vdev, u8 overlay, | |
1262 | u16 vxlan_udp_port_number) | |
1263 | { | |
1264 | u64 a1 = vxlan_udp_port_number; | |
1265 | u64 a0 = overlay; | |
1266 | int wait = 1000; | |
1267 | ||
1268 | return vnic_dev_cmd(vdev, CMD_OVERLAY_OFFLOAD_CFG, &a0, &a1, wait); | |
1269 | } | |
1270 | ||
1271 | int vnic_dev_get_supported_feature_ver(struct vnic_dev *vdev, u8 feature, | |
1272 | u64 *supported_versions) | |
1273 | { | |
1274 | u64 a0 = feature; | |
1275 | int wait = 1000; | |
1276 | u64 a1 = 0; | |
1277 | int ret; | |
1278 | ||
1279 | ret = vnic_dev_cmd(vdev, CMD_GET_SUPP_FEATURE_VER, &a0, &a1, wait); | |
1280 | if (!ret) | |
1281 | *supported_versions = a0; | |
1282 | ||
1283 | return ret; | |
1284 | } |