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Merge branch 'for-linus' of git://oss.sgi.com/xfs/xfs
[linux/fpc-iii.git] / drivers / net / vxge / vxge-config.c
blob297f0d2020735e4dffe20c689d2290c9d8716075
1 /******************************************************************************
2 * This software may be used and distributed according to the terms of
3 * the GNU General Public License (GPL), incorporated herein by reference.
4 * Drivers based on or derived from this code fall under the GPL and must
5 * retain the authorship, copyright and license notice. This file is not
6 * a complete program and may only be used when the entire operating
7 * system is licensed under the GPL.
8 * See the file COPYING in this distribution for more information.
9 *
10 * vxge-config.c: Driver for Neterion Inc's X3100 Series 10GbE PCIe I/O
11 * Virtualized Server Adapter.
12 * Copyright(c) 2002-2009 Neterion Inc.
13 ******************************************************************************/
14 #include <linux/vmalloc.h>
15 #include <linux/etherdevice.h>
16 #include <linux/pci.h>
17 #include <linux/pci_hotplug.h>
18 #include <linux/slab.h>
19
20 #include "vxge-traffic.h"
21 #include "vxge-config.h"
22
23 /*
24 * __vxge_hw_channel_allocate - Allocate memory for channel
25 * This function allocates required memory for the channel and various arrays
26 * in the channel
27 */
28 struct __vxge_hw_channel*
29 __vxge_hw_channel_allocate(struct __vxge_hw_vpath_handle *vph,
30 enum __vxge_hw_channel_type type,
31 u32 length, u32 per_dtr_space, void *userdata)
32 {
33 struct __vxge_hw_channel *channel;
34 struct __vxge_hw_device *hldev;
35 int size = 0;
36 u32 vp_id;
37
38 hldev = vph->vpath->hldev;
39 vp_id = vph->vpath->vp_id;
40
41 switch (type) {
42 case VXGE_HW_CHANNEL_TYPE_FIFO:
43 size = sizeof(struct __vxge_hw_fifo);
44 break;
45 case VXGE_HW_CHANNEL_TYPE_RING:
46 size = sizeof(struct __vxge_hw_ring);
47 break;
48 default:
49 break;
50 }
51
52 channel = kzalloc(size, GFP_KERNEL);
53 if (channel == NULL)
54 goto exit0;
55 INIT_LIST_HEAD(&channel->item);
56
57 channel->common_reg = hldev->common_reg;
58 channel->first_vp_id = hldev->first_vp_id;
59 channel->type = type;
60 channel->devh = hldev;
61 channel->vph = vph;
62 channel->userdata = userdata;
63 channel->per_dtr_space = per_dtr_space;
64 channel->length = length;
65 channel->vp_id = vp_id;
66
67 channel->work_arr = kzalloc(sizeof(void *)*length, GFP_KERNEL);
68 if (channel->work_arr == NULL)
69 goto exit1;
70
71 channel->free_arr = kzalloc(sizeof(void *)*length, GFP_KERNEL);
72 if (channel->free_arr == NULL)
73 goto exit1;
74 channel->free_ptr = length;
75
76 channel->reserve_arr = kzalloc(sizeof(void *)*length, GFP_KERNEL);
77 if (channel->reserve_arr == NULL)
78 goto exit1;
79 channel->reserve_ptr = length;
80 channel->reserve_top = 0;
81
82 channel->orig_arr = kzalloc(sizeof(void *)*length, GFP_KERNEL);
83 if (channel->orig_arr == NULL)
84 goto exit1;
85
86 return channel;
87 exit1:
88 __vxge_hw_channel_free(channel);
89
90 exit0:
91 return NULL;
92 }
93
94 /*
95 * __vxge_hw_channel_free - Free memory allocated for channel
96 * This function deallocates memory from the channel and various arrays
97 * in the channel
98 */
99 void __vxge_hw_channel_free(struct __vxge_hw_channel *channel)
100 {
101 kfree(channel->work_arr);
102 kfree(channel->free_arr);
103 kfree(channel->reserve_arr);
104 kfree(channel->orig_arr);
105 kfree(channel);
106 }
107
108 /*
109 * __vxge_hw_channel_initialize - Initialize a channel
110 * This function initializes a channel by properly setting the
111 * various references
112 */
113 enum vxge_hw_status
114 __vxge_hw_channel_initialize(struct __vxge_hw_channel *channel)
115 {
116 u32 i;
117 struct __vxge_hw_virtualpath *vpath;
118
119 vpath = channel->vph->vpath;
120
121 if ((channel->reserve_arr != NULL) && (channel->orig_arr != NULL)) {
122 for (i = 0; i < channel->length; i++)
123 channel->orig_arr[i] = channel->reserve_arr[i];
124 }
125
126 switch (channel->type) {
127 case VXGE_HW_CHANNEL_TYPE_FIFO:
128 vpath->fifoh = (struct __vxge_hw_fifo *)channel;
129 channel->stats = &((struct __vxge_hw_fifo *)
130 channel)->stats->common_stats;
131 break;
132 case VXGE_HW_CHANNEL_TYPE_RING:
133 vpath->ringh = (struct __vxge_hw_ring *)channel;
134 channel->stats = &((struct __vxge_hw_ring *)
135 channel)->stats->common_stats;
136 break;
137 default:
138 break;
139 }
140
141 return VXGE_HW_OK;
142 }
143
144 /*
145 * __vxge_hw_channel_reset - Resets a channel
146 * This function resets a channel by properly setting the various references
147 */
148 enum vxge_hw_status
149 __vxge_hw_channel_reset(struct __vxge_hw_channel *channel)
150 {
151 u32 i;
152
153 for (i = 0; i < channel->length; i++) {
154 if (channel->reserve_arr != NULL)
155 channel->reserve_arr[i] = channel->orig_arr[i];
156 if (channel->free_arr != NULL)
157 channel->free_arr[i] = NULL;
158 if (channel->work_arr != NULL)
159 channel->work_arr[i] = NULL;
160 }
161 channel->free_ptr = channel->length;
162 channel->reserve_ptr = channel->length;
163 channel->reserve_top = 0;
164 channel->post_index = 0;
165 channel->compl_index = 0;
166
167 return VXGE_HW_OK;
168 }
169
170 /*
171 * __vxge_hw_device_pci_e_init
172 * Initialize certain PCI/PCI-X configuration registers
173 * with recommended values. Save config space for future hw resets.
174 */
175 void
176 __vxge_hw_device_pci_e_init(struct __vxge_hw_device *hldev)
177 {
178 u16 cmd = 0;
179
180 /* Set the PErr Repconse bit and SERR in PCI command register. */
181 pci_read_config_word(hldev->pdev, PCI_COMMAND, &cmd);
182 cmd |= 0x140;
183 pci_write_config_word(hldev->pdev, PCI_COMMAND, cmd);
184
185 pci_save_state(hldev->pdev);
186 }
187
188 /*
189 * __vxge_hw_device_register_poll
190 * Will poll certain register for specified amount of time.
191 * Will poll until masked bit is not cleared.
192 */
193 enum vxge_hw_status
194 __vxge_hw_device_register_poll(void __iomem *reg, u64 mask, u32 max_millis)
195 {
196 u64 val64;
197 u32 i = 0;
198 enum vxge_hw_status ret = VXGE_HW_FAIL;
199
200 udelay(10);
201
202 do {
203 val64 = readq(reg);
204 if (!(val64 & mask))
205 return VXGE_HW_OK;
206 udelay(100);
207 } while (++i <= 9);
208
209 i = 0;
210 do {
211 val64 = readq(reg);
212 if (!(val64 & mask))
213 return VXGE_HW_OK;
214 mdelay(1);
215 } while (++i <= max_millis);
216
217 return ret;
218 }
219
220 /* __vxge_hw_device_vpath_reset_in_prog_check - Check if vpath reset
221 * in progress
222 * This routine checks the vpath reset in progress register is turned zero
223 */
224 enum vxge_hw_status
225 __vxge_hw_device_vpath_reset_in_prog_check(u64 __iomem *vpath_rst_in_prog)
226 {
227 enum vxge_hw_status status;
228 status = __vxge_hw_device_register_poll(vpath_rst_in_prog,
229 VXGE_HW_VPATH_RST_IN_PROG_VPATH_RST_IN_PROG(0x1ffff),
230 VXGE_HW_DEF_DEVICE_POLL_MILLIS);
231 return status;
232 }
233
234 /*
235 * __vxge_hw_device_toc_get
236 * This routine sets the swapper and reads the toc pointer and returns the
237 * memory mapped address of the toc
238 */
239 struct vxge_hw_toc_reg __iomem *
240 __vxge_hw_device_toc_get(void __iomem *bar0)
241 {
242 u64 val64;
243 struct vxge_hw_toc_reg __iomem *toc = NULL;
244 enum vxge_hw_status status;
245
246 struct vxge_hw_legacy_reg __iomem *legacy_reg =
247 (struct vxge_hw_legacy_reg __iomem *)bar0;
248
249 status = __vxge_hw_legacy_swapper_set(legacy_reg);
250 if (status != VXGE_HW_OK)
251 goto exit;
252
253 val64 = readq(&legacy_reg->toc_first_pointer);
254 toc = (struct vxge_hw_toc_reg __iomem *)(bar0+val64);
255 exit:
256 return toc;
257 }
258
259 /*
260 * __vxge_hw_device_reg_addr_get
261 * This routine sets the swapper and reads the toc pointer and initializes the
262 * register location pointers in the device object. It waits until the ric is
263 * completed initializing registers.
264 */
265 enum vxge_hw_status
266 __vxge_hw_device_reg_addr_get(struct __vxge_hw_device *hldev)
267 {
268 u64 val64;
269 u32 i;
270 enum vxge_hw_status status = VXGE_HW_OK;
271
272 hldev->legacy_reg = (struct vxge_hw_legacy_reg __iomem *)hldev->bar0;
273
274 hldev->toc_reg = __vxge_hw_device_toc_get(hldev->bar0);
275 if (hldev->toc_reg == NULL) {
276 status = VXGE_HW_FAIL;
277 goto exit;
278 }
279
280 val64 = readq(&hldev->toc_reg->toc_common_pointer);
281 hldev->common_reg =
282 (struct vxge_hw_common_reg __iomem *)(hldev->bar0 + val64);
283
284 val64 = readq(&hldev->toc_reg->toc_mrpcim_pointer);
285 hldev->mrpcim_reg =
286 (struct vxge_hw_mrpcim_reg __iomem *)(hldev->bar0 + val64);
287
288 for (i = 0; i < VXGE_HW_TITAN_SRPCIM_REG_SPACES; i++) {
289 val64 = readq(&hldev->toc_reg->toc_srpcim_pointer[i]);
290 hldev->srpcim_reg[i] =
291 (struct vxge_hw_srpcim_reg __iomem *)
292 (hldev->bar0 + val64);
293 }
294
295 for (i = 0; i < VXGE_HW_TITAN_VPMGMT_REG_SPACES; i++) {
296 val64 = readq(&hldev->toc_reg->toc_vpmgmt_pointer[i]);
297 hldev->vpmgmt_reg[i] =
298 (struct vxge_hw_vpmgmt_reg __iomem *)(hldev->bar0 + val64);
299 }
300
301 for (i = 0; i < VXGE_HW_TITAN_VPATH_REG_SPACES; i++) {
302 val64 = readq(&hldev->toc_reg->toc_vpath_pointer[i]);
303 hldev->vpath_reg[i] =
304 (struct vxge_hw_vpath_reg __iomem *)
305 (hldev->bar0 + val64);
306 }
307
308 val64 = readq(&hldev->toc_reg->toc_kdfc);
309
310 switch (VXGE_HW_TOC_GET_KDFC_INITIAL_BIR(val64)) {
311 case 0:
312 hldev->kdfc = (u8 __iomem *)(hldev->bar0 +
313 VXGE_HW_TOC_GET_KDFC_INITIAL_OFFSET(val64));
314 break;
315 default:
316 break;
317 }
318
319 status = __vxge_hw_device_vpath_reset_in_prog_check(
320 (u64 __iomem *)&hldev->common_reg->vpath_rst_in_prog);
321 exit:
322 return status;
323 }
324
325 /*
326 * __vxge_hw_device_id_get
327 * This routine returns sets the device id and revision numbers into the device
328 * structure
329 */
330 void __vxge_hw_device_id_get(struct __vxge_hw_device *hldev)
331 {
332 u64 val64;
333
334 val64 = readq(&hldev->common_reg->titan_asic_id);
335 hldev->device_id =
336 (u16)VXGE_HW_TITAN_ASIC_ID_GET_INITIAL_DEVICE_ID(val64);
337
338 hldev->major_revision =
339 (u8)VXGE_HW_TITAN_ASIC_ID_GET_INITIAL_MAJOR_REVISION(val64);
340
341 hldev->minor_revision =
342 (u8)VXGE_HW_TITAN_ASIC_ID_GET_INITIAL_MINOR_REVISION(val64);
343 }
344
345 /*
346 * __vxge_hw_device_access_rights_get: Get Access Rights of the driver
347 * This routine returns the Access Rights of the driver
348 */
349 static u32
350 __vxge_hw_device_access_rights_get(u32 host_type, u32 func_id)
351 {
352 u32 access_rights = VXGE_HW_DEVICE_ACCESS_RIGHT_VPATH;
353
354 switch (host_type) {
355 case VXGE_HW_NO_MR_NO_SR_NORMAL_FUNCTION:
356 if (func_id == 0) {
357 access_rights |= VXGE_HW_DEVICE_ACCESS_RIGHT_MRPCIM |
358 VXGE_HW_DEVICE_ACCESS_RIGHT_SRPCIM;
359 }
360 break;
361 case VXGE_HW_MR_NO_SR_VH0_BASE_FUNCTION:
362 access_rights |= VXGE_HW_DEVICE_ACCESS_RIGHT_MRPCIM |
363 VXGE_HW_DEVICE_ACCESS_RIGHT_SRPCIM;
364 break;
365 case VXGE_HW_NO_MR_SR_VH0_FUNCTION0:
366 access_rights |= VXGE_HW_DEVICE_ACCESS_RIGHT_MRPCIM |
367 VXGE_HW_DEVICE_ACCESS_RIGHT_SRPCIM;
368 break;
369 case VXGE_HW_NO_MR_SR_VH0_VIRTUAL_FUNCTION:
370 case VXGE_HW_SR_VH_VIRTUAL_FUNCTION:
371 case VXGE_HW_MR_SR_VH0_INVALID_CONFIG:
372 break;
373 case VXGE_HW_SR_VH_FUNCTION0:
374 case VXGE_HW_VH_NORMAL_FUNCTION:
375 access_rights |= VXGE_HW_DEVICE_ACCESS_RIGHT_SRPCIM;
376 break;
377 }
378
379 return access_rights;
380 }
381 /*
382 * __vxge_hw_device_is_privilaged
383 * This routine checks if the device function is privilaged or not
384 */
385
386 enum vxge_hw_status
387 __vxge_hw_device_is_privilaged(u32 host_type, u32 func_id)
388 {
389 if (__vxge_hw_device_access_rights_get(host_type,
390 func_id) &
391 VXGE_HW_DEVICE_ACCESS_RIGHT_MRPCIM)
392 return VXGE_HW_OK;
393 else
394 return VXGE_HW_ERR_PRIVILAGED_OPEARATION;
395 }
396
397 /*
398 * __vxge_hw_device_host_info_get
399 * This routine returns the host type assignments
400 */
401 void __vxge_hw_device_host_info_get(struct __vxge_hw_device *hldev)
402 {
403 u64 val64;
404 u32 i;
405
406 val64 = readq(&hldev->common_reg->host_type_assignments);
407
408 hldev->host_type =
409 (u32)VXGE_HW_HOST_TYPE_ASSIGNMENTS_GET_HOST_TYPE_ASSIGNMENTS(val64);
410
411 hldev->vpath_assignments = readq(&hldev->common_reg->vpath_assignments);
412
413 for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) {
414
415 if (!(hldev->vpath_assignments & vxge_mBIT(i)))
416 continue;
417
418 hldev->func_id =
419 __vxge_hw_vpath_func_id_get(i, hldev->vpmgmt_reg[i]);
420
421 hldev->access_rights = __vxge_hw_device_access_rights_get(
422 hldev->host_type, hldev->func_id);
423
424 hldev->first_vp_id = i;
425 break;
426 }
427 }
428
429 /*
430 * __vxge_hw_verify_pci_e_info - Validate the pci-e link parameters such as
431 * link width and signalling rate.
432 */
433 static enum vxge_hw_status
434 __vxge_hw_verify_pci_e_info(struct __vxge_hw_device *hldev)
435 {
436 int exp_cap;
437 u16 lnk;
438
439 /* Get the negotiated link width and speed from PCI config space */
440 exp_cap = pci_find_capability(hldev->pdev, PCI_CAP_ID_EXP);
441 pci_read_config_word(hldev->pdev, exp_cap + PCI_EXP_LNKSTA, &lnk);
442
443 if ((lnk & PCI_EXP_LNKSTA_CLS) != 1)
444 return VXGE_HW_ERR_INVALID_PCI_INFO;
445
446 switch ((lnk & PCI_EXP_LNKSTA_NLW) >> 4) {
447 case PCIE_LNK_WIDTH_RESRV:
448 case PCIE_LNK_X1:
449 case PCIE_LNK_X2:
450 case PCIE_LNK_X4:
451 case PCIE_LNK_X8:
452 break;
453 default:
454 return VXGE_HW_ERR_INVALID_PCI_INFO;
455 }
456
457 return VXGE_HW_OK;
458 }
459
460 /*
461 * __vxge_hw_device_initialize
462 * Initialize Titan-V hardware.
463 */
464 enum vxge_hw_status __vxge_hw_device_initialize(struct __vxge_hw_device *hldev)
465 {
466 enum vxge_hw_status status = VXGE_HW_OK;
467
468 if (VXGE_HW_OK == __vxge_hw_device_is_privilaged(hldev->host_type,
469 hldev->func_id)) {
470 /* Validate the pci-e link width and speed */
471 status = __vxge_hw_verify_pci_e_info(hldev);
472 if (status != VXGE_HW_OK)
473 goto exit;
474 }
475
476 exit:
477 return status;
478 }
479
480 /**
481 * vxge_hw_device_hw_info_get - Get the hw information
482 * Returns the vpath mask that has the bits set for each vpath allocated
483 * for the driver, FW version information and the first mac addresse for
484 * each vpath
485 */
486 enum vxge_hw_status __devinit
487 vxge_hw_device_hw_info_get(void __iomem *bar0,
488 struct vxge_hw_device_hw_info *hw_info)
489 {
490 u32 i;
491 u64 val64;
492 struct vxge_hw_toc_reg __iomem *toc;
493 struct vxge_hw_mrpcim_reg __iomem *mrpcim_reg;
494 struct vxge_hw_common_reg __iomem *common_reg;
495 struct vxge_hw_vpath_reg __iomem *vpath_reg;
496 struct vxge_hw_vpmgmt_reg __iomem *vpmgmt_reg;
497 enum vxge_hw_status status;
498
499 memset(hw_info, 0, sizeof(struct vxge_hw_device_hw_info));
500
501 toc = __vxge_hw_device_toc_get(bar0);
502 if (toc == NULL) {
503 status = VXGE_HW_ERR_CRITICAL;
504 goto exit;
505 }
506
507 val64 = readq(&toc->toc_common_pointer);
508 common_reg = (struct vxge_hw_common_reg __iomem *)(bar0 + val64);
509
510 status = __vxge_hw_device_vpath_reset_in_prog_check(
511 (u64 __iomem *)&common_reg->vpath_rst_in_prog);
512 if (status != VXGE_HW_OK)
513 goto exit;
514
515 hw_info->vpath_mask = readq(&common_reg->vpath_assignments);
516
517 val64 = readq(&common_reg->host_type_assignments);
518
519 hw_info->host_type =
520 (u32)VXGE_HW_HOST_TYPE_ASSIGNMENTS_GET_HOST_TYPE_ASSIGNMENTS(val64);
521
522 for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) {
523
524 if (!((hw_info->vpath_mask) & vxge_mBIT(i)))
525 continue;
526
527 val64 = readq(&toc->toc_vpmgmt_pointer[i]);
528
529 vpmgmt_reg = (struct vxge_hw_vpmgmt_reg __iomem *)
530 (bar0 + val64);
531
532 hw_info->func_id = __vxge_hw_vpath_func_id_get(i, vpmgmt_reg);
533 if (__vxge_hw_device_access_rights_get(hw_info->host_type,
534 hw_info->func_id) &
535 VXGE_HW_DEVICE_ACCESS_RIGHT_MRPCIM) {
536
537 val64 = readq(&toc->toc_mrpcim_pointer);
538
539 mrpcim_reg = (struct vxge_hw_mrpcim_reg __iomem *)
540 (bar0 + val64);
541
542 writeq(0, &mrpcim_reg->xgmac_gen_fw_memo_mask);
543 wmb();
544 }
545
546 val64 = readq(&toc->toc_vpath_pointer[i]);
547
548 vpath_reg = (struct vxge_hw_vpath_reg __iomem *)(bar0 + val64);
549
550 hw_info->function_mode =
551 __vxge_hw_vpath_pci_func_mode_get(i, vpath_reg);
552
553 status = __vxge_hw_vpath_fw_ver_get(i, vpath_reg, hw_info);
554 if (status != VXGE_HW_OK)
555 goto exit;
556
557 status = __vxge_hw_vpath_card_info_get(i, vpath_reg, hw_info);
558 if (status != VXGE_HW_OK)
559 goto exit;
560
561 break;
562 }
563
564 for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) {
565
566 if (!((hw_info->vpath_mask) & vxge_mBIT(i)))
567 continue;
568
569 val64 = readq(&toc->toc_vpath_pointer[i]);
570 vpath_reg = (struct vxge_hw_vpath_reg __iomem *)(bar0 + val64);
571
572 status = __vxge_hw_vpath_addr_get(i, vpath_reg,
573 hw_info->mac_addrs[i],
574 hw_info->mac_addr_masks[i]);
575 if (status != VXGE_HW_OK)
576 goto exit;
577 }
578 exit:
579 return status;
580 }
581
582 /*
583 * vxge_hw_device_initialize - Initialize Titan device.
584 * Initialize Titan device. Note that all the arguments of this public API
585 * are 'IN', including @hldev. Driver cooperates with
586 * OS to find new Titan device, locate its PCI and memory spaces.
587 *
588 * When done, the driver allocates sizeof(struct __vxge_hw_device) bytes for HW
589 * to enable the latter to perform Titan hardware initialization.
590 */
591 enum vxge_hw_status __devinit
592 vxge_hw_device_initialize(
593 struct __vxge_hw_device **devh,
594 struct vxge_hw_device_attr *attr,
595 struct vxge_hw_device_config *device_config)
596 {
597 u32 i;
598 u32 nblocks = 0;
599 struct __vxge_hw_device *hldev = NULL;
600 enum vxge_hw_status status = VXGE_HW_OK;
601
602 status = __vxge_hw_device_config_check(device_config);
603 if (status != VXGE_HW_OK)
604 goto exit;
605
606 hldev = (struct __vxge_hw_device *)
607 vmalloc(sizeof(struct __vxge_hw_device));
608 if (hldev == NULL) {
609 status = VXGE_HW_ERR_OUT_OF_MEMORY;
610 goto exit;
611 }
612
613 memset(hldev, 0, sizeof(struct __vxge_hw_device));
614 hldev->magic = VXGE_HW_DEVICE_MAGIC;
615
616 vxge_hw_device_debug_set(hldev, VXGE_ERR, VXGE_COMPONENT_ALL);
617
618 /* apply config */
619 memcpy(&hldev->config, device_config,
620 sizeof(struct vxge_hw_device_config));
621
622 hldev->bar0 = attr->bar0;
623 hldev->pdev = attr->pdev;
624
625 hldev->uld_callbacks.link_up = attr->uld_callbacks.link_up;
626 hldev->uld_callbacks.link_down = attr->uld_callbacks.link_down;
627 hldev->uld_callbacks.crit_err = attr->uld_callbacks.crit_err;
628
629 __vxge_hw_device_pci_e_init(hldev);
630
631 status = __vxge_hw_device_reg_addr_get(hldev);
632 if (status != VXGE_HW_OK) {
633 vfree(hldev);
634 goto exit;
635 }
636 __vxge_hw_device_id_get(hldev);
637
638 __vxge_hw_device_host_info_get(hldev);
639
640 /* Incrementing for stats blocks */
641 nblocks++;
642
643 for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) {
644
645 if (!(hldev->vpath_assignments & vxge_mBIT(i)))
646 continue;
647
648 if (device_config->vp_config[i].ring.enable ==
649 VXGE_HW_RING_ENABLE)
650 nblocks += device_config->vp_config[i].ring.ring_blocks;
651
652 if (device_config->vp_config[i].fifo.enable ==
653 VXGE_HW_FIFO_ENABLE)
654 nblocks += device_config->vp_config[i].fifo.fifo_blocks;
655 nblocks++;
656 }
657
658 if (__vxge_hw_blockpool_create(hldev,
659 &hldev->block_pool,
660 device_config->dma_blockpool_initial + nblocks,
661 device_config->dma_blockpool_max + nblocks) != VXGE_HW_OK) {
662
663 vxge_hw_device_terminate(hldev);
664 status = VXGE_HW_ERR_OUT_OF_MEMORY;
665 goto exit;
666 }
667
668 status = __vxge_hw_device_initialize(hldev);
669
670 if (status != VXGE_HW_OK) {
671 vxge_hw_device_terminate(hldev);
672 goto exit;
673 }
674
675 *devh = hldev;
676 exit:
677 return status;
678 }
679
680 /*
681 * vxge_hw_device_terminate - Terminate Titan device.
682 * Terminate HW device.
683 */
684 void
685 vxge_hw_device_terminate(struct __vxge_hw_device *hldev)
686 {
687 vxge_assert(hldev->magic == VXGE_HW_DEVICE_MAGIC);
688
689 hldev->magic = VXGE_HW_DEVICE_DEAD;
690 __vxge_hw_blockpool_destroy(&hldev->block_pool);
691 vfree(hldev);
692 }
693
694 /*
695 * vxge_hw_device_stats_get - Get the device hw statistics.
696 * Returns the vpath h/w stats for the device.
697 */
698 enum vxge_hw_status
699 vxge_hw_device_stats_get(struct __vxge_hw_device *hldev,
700 struct vxge_hw_device_stats_hw_info *hw_stats)
701 {
702 u32 i;
703 enum vxge_hw_status status = VXGE_HW_OK;
704
705 for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) {
706
707 if (!(hldev->vpaths_deployed & vxge_mBIT(i)) ||
708 (hldev->virtual_paths[i].vp_open ==
709 VXGE_HW_VP_NOT_OPEN))
710 continue;
711
712 memcpy(hldev->virtual_paths[i].hw_stats_sav,
713 hldev->virtual_paths[i].hw_stats,
714 sizeof(struct vxge_hw_vpath_stats_hw_info));
715
716 status = __vxge_hw_vpath_stats_get(
717 &hldev->virtual_paths[i],
718 hldev->virtual_paths[i].hw_stats);
719 }
720
721 memcpy(hw_stats, &hldev->stats.hw_dev_info_stats,
722 sizeof(struct vxge_hw_device_stats_hw_info));
723
724 return status;
725 }
726
727 /*
728 * vxge_hw_driver_stats_get - Get the device sw statistics.
729 * Returns the vpath s/w stats for the device.
730 */
731 enum vxge_hw_status vxge_hw_driver_stats_get(
732 struct __vxge_hw_device *hldev,
733 struct vxge_hw_device_stats_sw_info *sw_stats)
734 {
735 enum vxge_hw_status status = VXGE_HW_OK;
736
737 memcpy(sw_stats, &hldev->stats.sw_dev_info_stats,
738 sizeof(struct vxge_hw_device_stats_sw_info));
739
740 return status;
741 }
742
743 /*
744 * vxge_hw_mrpcim_stats_access - Access the statistics from the given location
745 * and offset and perform an operation
746 * Get the statistics from the given location and offset.
747 */
748 enum vxge_hw_status
749 vxge_hw_mrpcim_stats_access(struct __vxge_hw_device *hldev,
750 u32 operation, u32 location, u32 offset, u64 *stat)
751 {
752 u64 val64;
753 enum vxge_hw_status status = VXGE_HW_OK;
754
755 status = __vxge_hw_device_is_privilaged(hldev->host_type,
756 hldev->func_id);
757 if (status != VXGE_HW_OK)
758 goto exit;
759
760 val64 = VXGE_HW_XMAC_STATS_SYS_CMD_OP(operation) |
761 VXGE_HW_XMAC_STATS_SYS_CMD_STROBE |
762 VXGE_HW_XMAC_STATS_SYS_CMD_LOC_SEL(location) |
763 VXGE_HW_XMAC_STATS_SYS_CMD_OFFSET_SEL(offset);
764
765 status = __vxge_hw_pio_mem_write64(val64,
766 &hldev->mrpcim_reg->xmac_stats_sys_cmd,
767 VXGE_HW_XMAC_STATS_SYS_CMD_STROBE,
768 hldev->config.device_poll_millis);
769
770 if ((status == VXGE_HW_OK) && (operation == VXGE_HW_STATS_OP_READ))
771 *stat = readq(&hldev->mrpcim_reg->xmac_stats_sys_data);
772 else
773 *stat = 0;
774 exit:
775 return status;
776 }
777
778 /*
779 * vxge_hw_device_xmac_aggr_stats_get - Get the Statistics on aggregate port
780 * Get the Statistics on aggregate port
781 */
782 enum vxge_hw_status
783 vxge_hw_device_xmac_aggr_stats_get(struct __vxge_hw_device *hldev, u32 port,
784 struct vxge_hw_xmac_aggr_stats *aggr_stats)
785 {
786 u64 *val64;
787 int i;
788 u32 offset = VXGE_HW_STATS_AGGRn_OFFSET;
789 enum vxge_hw_status status = VXGE_HW_OK;
790
791 val64 = (u64 *)aggr_stats;
792
793 status = __vxge_hw_device_is_privilaged(hldev->host_type,
794 hldev->func_id);
795 if (status != VXGE_HW_OK)
796 goto exit;
797
798 for (i = 0; i < sizeof(struct vxge_hw_xmac_aggr_stats) / 8; i++) {
799 status = vxge_hw_mrpcim_stats_access(hldev,
800 VXGE_HW_STATS_OP_READ,
801 VXGE_HW_STATS_LOC_AGGR,
802 ((offset + (104 * port)) >> 3), val64);
803 if (status != VXGE_HW_OK)
804 goto exit;
805
806 offset += 8;
807 val64++;
808 }
809 exit:
810 return status;
811 }
812
813 /*
814 * vxge_hw_device_xmac_port_stats_get - Get the Statistics on a port
815 * Get the Statistics on port
816 */
817 enum vxge_hw_status
818 vxge_hw_device_xmac_port_stats_get(struct __vxge_hw_device *hldev, u32 port,
819 struct vxge_hw_xmac_port_stats *port_stats)
820 {
821 u64 *val64;
822 enum vxge_hw_status status = VXGE_HW_OK;
823 int i;
824 u32 offset = 0x0;
825 val64 = (u64 *) port_stats;
826
827 status = __vxge_hw_device_is_privilaged(hldev->host_type,
828 hldev->func_id);
829 if (status != VXGE_HW_OK)
830 goto exit;
831
832 for (i = 0; i < sizeof(struct vxge_hw_xmac_port_stats) / 8; i++) {
833 status = vxge_hw_mrpcim_stats_access(hldev,
834 VXGE_HW_STATS_OP_READ,
835 VXGE_HW_STATS_LOC_AGGR,
836 ((offset + (608 * port)) >> 3), val64);
837 if (status != VXGE_HW_OK)
838 goto exit;
839
840 offset += 8;
841 val64++;
842 }
843
844 exit:
845 return status;
846 }
847
848 /*
849 * vxge_hw_device_xmac_stats_get - Get the XMAC Statistics
850 * Get the XMAC Statistics
851 */
852 enum vxge_hw_status
853 vxge_hw_device_xmac_stats_get(struct __vxge_hw_device *hldev,
854 struct vxge_hw_xmac_stats *xmac_stats)
855 {
856 enum vxge_hw_status status = VXGE_HW_OK;
857 u32 i;
858
859 status = vxge_hw_device_xmac_aggr_stats_get(hldev,
860 0, &xmac_stats->aggr_stats[0]);
861
862 if (status != VXGE_HW_OK)
863 goto exit;
864
865 status = vxge_hw_device_xmac_aggr_stats_get(hldev,
866 1, &xmac_stats->aggr_stats[1]);
867 if (status != VXGE_HW_OK)
868 goto exit;
869
870 for (i = 0; i <= VXGE_HW_MAC_MAX_MAC_PORT_ID; i++) {
871
872 status = vxge_hw_device_xmac_port_stats_get(hldev,
873 i, &xmac_stats->port_stats[i]);
874 if (status != VXGE_HW_OK)
875 goto exit;
876 }
877
878 for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) {
879
880 if (!(hldev->vpaths_deployed & vxge_mBIT(i)))
881 continue;
882
883 status = __vxge_hw_vpath_xmac_tx_stats_get(
884 &hldev->virtual_paths[i],
885 &xmac_stats->vpath_tx_stats[i]);
886 if (status != VXGE_HW_OK)
887 goto exit;
888
889 status = __vxge_hw_vpath_xmac_rx_stats_get(
890 &hldev->virtual_paths[i],
891 &xmac_stats->vpath_rx_stats[i]);
892 if (status != VXGE_HW_OK)
893 goto exit;
894 }
895 exit:
896 return status;
897 }
898
899 /*
900 * vxge_hw_device_debug_set - Set the debug module, level and timestamp
901 * This routine is used to dynamically change the debug output
902 */
903 void vxge_hw_device_debug_set(struct __vxge_hw_device *hldev,
904 enum vxge_debug_level level, u32 mask)
905 {
906 if (hldev == NULL)
907 return;
908
909 #if defined(VXGE_DEBUG_TRACE_MASK) || \
910 defined(VXGE_DEBUG_ERR_MASK)
911 hldev->debug_module_mask = mask;
912 hldev->debug_level = level;
913 #endif
914
915 #if defined(VXGE_DEBUG_ERR_MASK)
916 hldev->level_err = level & VXGE_ERR;
917 #endif
918
919 #if defined(VXGE_DEBUG_TRACE_MASK)
920 hldev->level_trace = level & VXGE_TRACE;
921 #endif
922 }
923
924 /*
925 * vxge_hw_device_error_level_get - Get the error level
926 * This routine returns the current error level set
927 */
928 u32 vxge_hw_device_error_level_get(struct __vxge_hw_device *hldev)
929 {
930 #if defined(VXGE_DEBUG_ERR_MASK)
931 if (hldev == NULL)
932 return VXGE_ERR;
933 else
934 return hldev->level_err;
935 #else
936 return 0;
937 #endif
938 }
939
940 /*
941 * vxge_hw_device_trace_level_get - Get the trace level
942 * This routine returns the current trace level set
943 */
944 u32 vxge_hw_device_trace_level_get(struct __vxge_hw_device *hldev)
945 {
946 #if defined(VXGE_DEBUG_TRACE_MASK)
947 if (hldev == NULL)
948 return VXGE_TRACE;
949 else
950 return hldev->level_trace;
951 #else
952 return 0;
953 #endif
954 }
955 /*
956 * vxge_hw_device_debug_mask_get - Get the debug mask
957 * This routine returns the current debug mask set
958 */
959 u32 vxge_hw_device_debug_mask_get(struct __vxge_hw_device *hldev)
960 {
961 #if defined(VXGE_DEBUG_TRACE_MASK) || defined(VXGE_DEBUG_ERR_MASK)
962 if (hldev == NULL)
963 return 0;
964 return hldev->debug_module_mask;
965 #else
966 return 0;
967 #endif
968 }
969
970 /*
971 * vxge_hw_getpause_data -Pause frame frame generation and reception.
972 * Returns the Pause frame generation and reception capability of the NIC.
973 */
974 enum vxge_hw_status vxge_hw_device_getpause_data(struct __vxge_hw_device *hldev,
975 u32 port, u32 *tx, u32 *rx)
976 {
977 u64 val64;
978 enum vxge_hw_status status = VXGE_HW_OK;
979
980 if ((hldev == NULL) || (hldev->magic != VXGE_HW_DEVICE_MAGIC)) {
981 status = VXGE_HW_ERR_INVALID_DEVICE;
982 goto exit;
983 }
984
985 if (port > VXGE_HW_MAC_MAX_MAC_PORT_ID) {
986 status = VXGE_HW_ERR_INVALID_PORT;
987 goto exit;
988 }
989
990 if (!(hldev->access_rights & VXGE_HW_DEVICE_ACCESS_RIGHT_MRPCIM)) {
991 status = VXGE_HW_ERR_PRIVILAGED_OPEARATION;
992 goto exit;
993 }
994
995 val64 = readq(&hldev->mrpcim_reg->rxmac_pause_cfg_port[port]);
996 if (val64 & VXGE_HW_RXMAC_PAUSE_CFG_PORT_GEN_EN)
997 *tx = 1;
998 if (val64 & VXGE_HW_RXMAC_PAUSE_CFG_PORT_RCV_EN)
999 *rx = 1;
1000 exit:
1001 return status;
1002 }
1003
1004 /*
1005 * vxge_hw_device_setpause_data - set/reset pause frame generation.
1006 * It can be used to set or reset Pause frame generation or reception
1007 * support of the NIC.
1008 */
1009
1010 enum vxge_hw_status vxge_hw_device_setpause_data(struct __vxge_hw_device *hldev,
1011 u32 port, u32 tx, u32 rx)
1012 {
1013 u64 val64;
1014 enum vxge_hw_status status = VXGE_HW_OK;
1015
1016 if ((hldev == NULL) || (hldev->magic != VXGE_HW_DEVICE_MAGIC)) {
1017 status = VXGE_HW_ERR_INVALID_DEVICE;
1018 goto exit;
1019 }
1020
1021 if (port > VXGE_HW_MAC_MAX_MAC_PORT_ID) {
1022 status = VXGE_HW_ERR_INVALID_PORT;
1023 goto exit;
1024 }
1025
1026 status = __vxge_hw_device_is_privilaged(hldev->host_type,
1027 hldev->func_id);
1028 if (status != VXGE_HW_OK)
1029 goto exit;
1030
1031 val64 = readq(&hldev->mrpcim_reg->rxmac_pause_cfg_port[port]);
1032 if (tx)
1033 val64 |= VXGE_HW_RXMAC_PAUSE_CFG_PORT_GEN_EN;
1034 else
1035 val64 &= ~VXGE_HW_RXMAC_PAUSE_CFG_PORT_GEN_EN;
1036 if (rx)
1037 val64 |= VXGE_HW_RXMAC_PAUSE_CFG_PORT_RCV_EN;
1038 else
1039 val64 &= ~VXGE_HW_RXMAC_PAUSE_CFG_PORT_RCV_EN;
1040
1041 writeq(val64, &hldev->mrpcim_reg->rxmac_pause_cfg_port[port]);
1042 exit:
1043 return status;
1044 }
1045
1046 u16 vxge_hw_device_link_width_get(struct __vxge_hw_device *hldev)
1047 {
1048 int link_width, exp_cap;
1049 u16 lnk;
1050
1051 exp_cap = pci_find_capability(hldev->pdev, PCI_CAP_ID_EXP);
1052 pci_read_config_word(hldev->pdev, exp_cap + PCI_EXP_LNKSTA, &lnk);
1053 link_width = (lnk & VXGE_HW_PCI_EXP_LNKCAP_LNK_WIDTH) >> 4;
1054 return link_width;
1055 }
1056
1057 /*
1058 * __vxge_hw_ring_block_memblock_idx - Return the memblock index
1059 * This function returns the index of memory block
1060 */
1061 static inline u32
1062 __vxge_hw_ring_block_memblock_idx(u8 *block)
1063 {
1064 return (u32)*((u64 *)(block + VXGE_HW_RING_MEMBLOCK_IDX_OFFSET));
1065 }
1066
1067 /*
1068 * __vxge_hw_ring_block_memblock_idx_set - Sets the memblock index
1069 * This function sets index to a memory block
1070 */
1071 static inline void
1072 __vxge_hw_ring_block_memblock_idx_set(u8 *block, u32 memblock_idx)
1073 {
1074 *((u64 *)(block + VXGE_HW_RING_MEMBLOCK_IDX_OFFSET)) = memblock_idx;
1075 }
1076
1077 /*
1078 * __vxge_hw_ring_block_next_pointer_set - Sets the next block pointer
1079 * in RxD block
1080 * Sets the next block pointer in RxD block
1081 */
1082 static inline void
1083 __vxge_hw_ring_block_next_pointer_set(u8 *block, dma_addr_t dma_next)
1084 {
1085 *((u64 *)(block + VXGE_HW_RING_NEXT_BLOCK_POINTER_OFFSET)) = dma_next;
1086 }
1087
1088 /*
1089 * __vxge_hw_ring_first_block_address_get - Returns the dma address of the
1090 * first block
1091 * Returns the dma address of the first RxD block
1092 */
1093 u64 __vxge_hw_ring_first_block_address_get(struct __vxge_hw_ring *ring)
1094 {
1095 struct vxge_hw_mempool_dma *dma_object;
1096
1097 dma_object = ring->mempool->memblocks_dma_arr;
1098 vxge_assert(dma_object != NULL);
1099
1100 return dma_object->addr;
1101 }
1102
1103 /*
1104 * __vxge_hw_ring_item_dma_addr - Return the dma address of an item
1105 * This function returns the dma address of a given item
1106 */
1107 static dma_addr_t __vxge_hw_ring_item_dma_addr(struct vxge_hw_mempool *mempoolh,
1108 void *item)
1109 {
1110 u32 memblock_idx;
1111 void *memblock;
1112 struct vxge_hw_mempool_dma *memblock_dma_object;
1113 ptrdiff_t dma_item_offset;
1114
1115 /* get owner memblock index */
1116 memblock_idx = __vxge_hw_ring_block_memblock_idx(item);
1117
1118 /* get owner memblock by memblock index */
1119 memblock = mempoolh->memblocks_arr[memblock_idx];
1120
1121 /* get memblock DMA object by memblock index */
1122 memblock_dma_object = mempoolh->memblocks_dma_arr + memblock_idx;
1123
1124 /* calculate offset in the memblock of this item */
1125 dma_item_offset = (u8 *)item - (u8 *)memblock;
1126
1127 return memblock_dma_object->addr + dma_item_offset;
1128 }
1129
1130 /*
1131 * __vxge_hw_ring_rxdblock_link - Link the RxD blocks
1132 * This function returns the dma address of a given item
1133 */
1134 static void __vxge_hw_ring_rxdblock_link(struct vxge_hw_mempool *mempoolh,
1135 struct __vxge_hw_ring *ring, u32 from,
1136 u32 to)
1137 {
1138 u8 *to_item , *from_item;
1139 dma_addr_t to_dma;
1140
1141 /* get "from" RxD block */
1142 from_item = mempoolh->items_arr[from];
1143 vxge_assert(from_item);
1144
1145 /* get "to" RxD block */
1146 to_item = mempoolh->items_arr[to];
1147 vxge_assert(to_item);
1148
1149 /* return address of the beginning of previous RxD block */
1150 to_dma = __vxge_hw_ring_item_dma_addr(mempoolh, to_item);
1151
1152 /* set next pointer for this RxD block to point on
1153 * previous item's DMA start address */
1154 __vxge_hw_ring_block_next_pointer_set(from_item, to_dma);
1155 }
1156
1157 /*
1158 * __vxge_hw_ring_mempool_item_alloc - Allocate List blocks for RxD
1159 * block callback
1160 * This function is callback passed to __vxge_hw_mempool_create to create memory
1161 * pool for RxD block
1162 */
1163 static void
1164 __vxge_hw_ring_mempool_item_alloc(struct vxge_hw_mempool *mempoolh,
1165 u32 memblock_index,
1166 struct vxge_hw_mempool_dma *dma_object,
1167 u32 index, u32 is_last)
1168 {
1169 u32 i;
1170 void *item = mempoolh->items_arr[index];
1171 struct __vxge_hw_ring *ring =
1172 (struct __vxge_hw_ring *)mempoolh->userdata;
1173
1174 /* format rxds array */
1175 for (i = 0; i < ring->rxds_per_block; i++) {
1176 void *rxdblock_priv;
1177 void *uld_priv;
1178 struct vxge_hw_ring_rxd_1 *rxdp;
1179
1180 u32 reserve_index = ring->channel.reserve_ptr -
1181 (index * ring->rxds_per_block + i + 1);
1182 u32 memblock_item_idx;
1183
1184 ring->channel.reserve_arr[reserve_index] = ((u8 *)item) +
1185 i * ring->rxd_size;
1186
1187 /* Note: memblock_item_idx is index of the item within
1188 * the memblock. For instance, in case of three RxD-blocks
1189 * per memblock this value can be 0, 1 or 2. */
1190 rxdblock_priv = __vxge_hw_mempool_item_priv(mempoolh,
1191 memblock_index, item,
1192 &memblock_item_idx);
1193
1194 rxdp = (struct vxge_hw_ring_rxd_1 *)
1195 ring->channel.reserve_arr[reserve_index];
1196
1197 uld_priv = ((u8 *)rxdblock_priv + ring->rxd_priv_size * i);
1198
1199 /* pre-format Host_Control */
1200 rxdp->host_control = (u64)(size_t)uld_priv;
1201 }
1202
1203 __vxge_hw_ring_block_memblock_idx_set(item, memblock_index);
1204
1205 if (is_last) {
1206 /* link last one with first one */
1207 __vxge_hw_ring_rxdblock_link(mempoolh, ring, index, 0);
1208 }
1209
1210 if (index > 0) {
1211 /* link this RxD block with previous one */
1212 __vxge_hw_ring_rxdblock_link(mempoolh, ring, index - 1, index);
1213 }
1214 }
1215
1216 /*
1217 * __vxge_hw_ring_replenish - Initial replenish of RxDs
1218 * This function replenishes the RxDs from reserve array to work array
1219 */
1220 enum vxge_hw_status
1221 vxge_hw_ring_replenish(struct __vxge_hw_ring *ring)
1222 {
1223 void *rxd;
1224 struct __vxge_hw_channel *channel;
1225 enum vxge_hw_status status = VXGE_HW_OK;
1226
1227 channel = &ring->channel;
1228
1229 while (vxge_hw_channel_dtr_count(channel) > 0) {
1230
1231 status = vxge_hw_ring_rxd_reserve(ring, &rxd);
1232
1233 vxge_assert(status == VXGE_HW_OK);
1234
1235 if (ring->rxd_init) {
1236 status = ring->rxd_init(rxd, channel->userdata);
1237 if (status != VXGE_HW_OK) {
1238 vxge_hw_ring_rxd_free(ring, rxd);
1239 goto exit;
1240 }
1241 }
1242
1243 vxge_hw_ring_rxd_post(ring, rxd);
1244 }
1245 status = VXGE_HW_OK;
1246 exit:
1247 return status;
1248 }
1249
1250 /*
1251 * __vxge_hw_ring_create - Create a Ring
1252 * This function creates Ring and initializes it.
1253 *
1254 */
1255 enum vxge_hw_status
1256 __vxge_hw_ring_create(struct __vxge_hw_vpath_handle *vp,
1257 struct vxge_hw_ring_attr *attr)
1258 {
1259 enum vxge_hw_status status = VXGE_HW_OK;
1260 struct __vxge_hw_ring *ring;
1261 u32 ring_length;
1262 struct vxge_hw_ring_config *config;
1263 struct __vxge_hw_device *hldev;
1264 u32 vp_id;
1265 struct vxge_hw_mempool_cbs ring_mp_callback;
1266
1267 if ((vp == NULL) || (attr == NULL)) {
1268 status = VXGE_HW_FAIL;
1269 goto exit;
1270 }
1271
1272 hldev = vp->vpath->hldev;
1273 vp_id = vp->vpath->vp_id;
1274
1275 config = &hldev->config.vp_config[vp_id].ring;
1276
1277 ring_length = config->ring_blocks *
1278 vxge_hw_ring_rxds_per_block_get(config->buffer_mode);
1279
1280 ring = (struct __vxge_hw_ring *)__vxge_hw_channel_allocate(vp,
1281 VXGE_HW_CHANNEL_TYPE_RING,
1282 ring_length,
1283 attr->per_rxd_space,
1284 attr->userdata);
1285
1286 if (ring == NULL) {
1287 status = VXGE_HW_ERR_OUT_OF_MEMORY;
1288 goto exit;
1289 }
1290
1291 vp->vpath->ringh = ring;
1292 ring->vp_id = vp_id;
1293 ring->vp_reg = vp->vpath->vp_reg;
1294 ring->common_reg = hldev->common_reg;
1295 ring->stats = &vp->vpath->sw_stats->ring_stats;
1296 ring->config = config;
1297 ring->callback = attr->callback;
1298 ring->rxd_init = attr->rxd_init;
1299 ring->rxd_term = attr->rxd_term;
1300 ring->buffer_mode = config->buffer_mode;
1301 ring->rxds_limit = config->rxds_limit;
1302
1303 ring->rxd_size = vxge_hw_ring_rxd_size_get(config->buffer_mode);
1304 ring->rxd_priv_size =
1305 sizeof(struct __vxge_hw_ring_rxd_priv) + attr->per_rxd_space;
1306 ring->per_rxd_space = attr->per_rxd_space;
1307
1308 ring->rxd_priv_size =
1309 ((ring->rxd_priv_size + VXGE_CACHE_LINE_SIZE - 1) /
1310 VXGE_CACHE_LINE_SIZE) * VXGE_CACHE_LINE_SIZE;
1311
1312 /* how many RxDs can fit into one block. Depends on configured
1313 * buffer_mode. */
1314 ring->rxds_per_block =
1315 vxge_hw_ring_rxds_per_block_get(config->buffer_mode);
1316
1317 /* calculate actual RxD block private size */
1318 ring->rxdblock_priv_size = ring->rxd_priv_size * ring->rxds_per_block;
1319 ring_mp_callback.item_func_alloc = __vxge_hw_ring_mempool_item_alloc;
1320 ring->mempool = __vxge_hw_mempool_create(hldev,
1321 VXGE_HW_BLOCK_SIZE,
1322 VXGE_HW_BLOCK_SIZE,
1323 ring->rxdblock_priv_size,
1324 ring->config->ring_blocks,
1325 ring->config->ring_blocks,
1326 &ring_mp_callback,
1327 ring);
1328
1329 if (ring->mempool == NULL) {
1330 __vxge_hw_ring_delete(vp);
1331 return VXGE_HW_ERR_OUT_OF_MEMORY;
1332 }
1333
1334 status = __vxge_hw_channel_initialize(&ring->channel);
1335 if (status != VXGE_HW_OK) {
1336 __vxge_hw_ring_delete(vp);
1337 goto exit;
1338 }
1339
1340 /* Note:
1341 * Specifying rxd_init callback means two things:
1342 * 1) rxds need to be initialized by driver at channel-open time;
1343 * 2) rxds need to be posted at channel-open time
1344 * (that's what the initial_replenish() below does)
1345 * Currently we don't have a case when the 1) is done without the 2).
1346 */
1347 if (ring->rxd_init) {
1348 status = vxge_hw_ring_replenish(ring);
1349 if (status != VXGE_HW_OK) {
1350 __vxge_hw_ring_delete(vp);
1351 goto exit;
1352 }
1353 }
1354
1355 /* initial replenish will increment the counter in its post() routine,
1356 * we have to reset it */
1357 ring->stats->common_stats.usage_cnt = 0;
1358 exit:
1359 return status;
1360 }
1361
1362 /*
1363 * __vxge_hw_ring_abort - Returns the RxD
1364 * This function terminates the RxDs of ring
1365 */
1366 enum vxge_hw_status __vxge_hw_ring_abort(struct __vxge_hw_ring *ring)
1367 {
1368 void *rxdh;
1369 struct __vxge_hw_channel *channel;
1370
1371 channel = &ring->channel;
1372
1373 for (;;) {
1374 vxge_hw_channel_dtr_try_complete(channel, &rxdh);
1375
1376 if (rxdh == NULL)
1377 break;
1378
1379 vxge_hw_channel_dtr_complete(channel);
1380
1381 if (ring->rxd_term)
1382 ring->rxd_term(rxdh, VXGE_HW_RXD_STATE_POSTED,
1383 channel->userdata);
1384
1385 vxge_hw_channel_dtr_free(channel, rxdh);
1386 }
1387
1388 return VXGE_HW_OK;
1389 }
1390
1391 /*
1392 * __vxge_hw_ring_reset - Resets the ring
1393 * This function resets the ring during vpath reset operation
1394 */
1395 enum vxge_hw_status __vxge_hw_ring_reset(struct __vxge_hw_ring *ring)
1396 {
1397 enum vxge_hw_status status = VXGE_HW_OK;
1398 struct __vxge_hw_channel *channel;
1399
1400 channel = &ring->channel;
1401
1402 __vxge_hw_ring_abort(ring);
1403
1404 status = __vxge_hw_channel_reset(channel);
1405
1406 if (status != VXGE_HW_OK)
1407 goto exit;
1408
1409 if (ring->rxd_init) {
1410 status = vxge_hw_ring_replenish(ring);
1411 if (status != VXGE_HW_OK)
1412 goto exit;
1413 }
1414 exit:
1415 return status;
1416 }
1417
1418 /*
1419 * __vxge_hw_ring_delete - Removes the ring
1420 * This function freeup the memory pool and removes the ring
1421 */
1422 enum vxge_hw_status __vxge_hw_ring_delete(struct __vxge_hw_vpath_handle *vp)
1423 {
1424 struct __vxge_hw_ring *ring = vp->vpath->ringh;
1425
1426 __vxge_hw_ring_abort(ring);
1427
1428 if (ring->mempool)
1429 __vxge_hw_mempool_destroy(ring->mempool);
1430
1431 vp->vpath->ringh = NULL;
1432 __vxge_hw_channel_free(&ring->channel);
1433
1434 return VXGE_HW_OK;
1435 }
1436
1437 /*
1438 * __vxge_hw_mempool_grow
1439 * Will resize mempool up to %num_allocate value.
1440 */
1441 enum vxge_hw_status
1442 __vxge_hw_mempool_grow(struct vxge_hw_mempool *mempool, u32 num_allocate,
1443 u32 *num_allocated)
1444 {
1445 u32 i, first_time = mempool->memblocks_allocated == 0 ? 1 : 0;
1446 u32 n_items = mempool->items_per_memblock;
1447 u32 start_block_idx = mempool->memblocks_allocated;
1448 u32 end_block_idx = mempool->memblocks_allocated + num_allocate;
1449 enum vxge_hw_status status = VXGE_HW_OK;
1450
1451 *num_allocated = 0;
1452
1453 if (end_block_idx > mempool->memblocks_max) {
1454 status = VXGE_HW_ERR_OUT_OF_MEMORY;
1455 goto exit;
1456 }
1457
1458 for (i = start_block_idx; i < end_block_idx; i++) {
1459 u32 j;
1460 u32 is_last = ((end_block_idx - 1) == i);
1461 struct vxge_hw_mempool_dma *dma_object =
1462 mempool->memblocks_dma_arr + i;
1463 void *the_memblock;
1464
1465 /* allocate memblock's private part. Each DMA memblock
1466 * has a space allocated for item's private usage upon
1467 * mempool's user request. Each time mempool grows, it will
1468 * allocate new memblock and its private part at once.
1469 * This helps to minimize memory usage a lot. */
1470 mempool->memblocks_priv_arr[i] =
1471 vmalloc(mempool->items_priv_size * n_items);
1472 if (mempool->memblocks_priv_arr[i] == NULL) {
1473 status = VXGE_HW_ERR_OUT_OF_MEMORY;
1474 goto exit;
1475 }
1476
1477 memset(mempool->memblocks_priv_arr[i], 0,
1478 mempool->items_priv_size * n_items);
1479
1480 /* allocate DMA-capable memblock */
1481 mempool->memblocks_arr[i] =
1482 __vxge_hw_blockpool_malloc(mempool->devh,
1483 mempool->memblock_size, dma_object);
1484 if (mempool->memblocks_arr[i] == NULL) {
1485 vfree(mempool->memblocks_priv_arr[i]);
1486 status = VXGE_HW_ERR_OUT_OF_MEMORY;
1487 goto exit;
1488 }
1489
1490 (*num_allocated)++;
1491 mempool->memblocks_allocated++;
1492
1493 memset(mempool->memblocks_arr[i], 0, mempool->memblock_size);
1494
1495 the_memblock = mempool->memblocks_arr[i];
1496
1497 /* fill the items hash array */
1498 for (j = 0; j < n_items; j++) {
1499 u32 index = i * n_items + j;
1500
1501 if (first_time && index >= mempool->items_initial)
1502 break;
1503
1504 mempool->items_arr[index] =
1505 ((char *)the_memblock + j*mempool->item_size);
1506
1507 /* let caller to do more job on each item */
1508 if (mempool->item_func_alloc != NULL)
1509 mempool->item_func_alloc(mempool, i,
1510 dma_object, index, is_last);
1511
1512 mempool->items_current = index + 1;
1513 }
1514
1515 if (first_time && mempool->items_current ==
1516 mempool->items_initial)
1517 break;
1518 }
1519 exit:
1520 return status;
1521 }
1522
1523 /*
1524 * vxge_hw_mempool_create
1525 * This function will create memory pool object. Pool may grow but will
1526 * never shrink. Pool consists of number of dynamically allocated blocks
1527 * with size enough to hold %items_initial number of items. Memory is
1528 * DMA-able but client must map/unmap before interoperating with the device.
1529 */
1530 struct vxge_hw_mempool*
1531 __vxge_hw_mempool_create(
1532 struct __vxge_hw_device *devh,
1533 u32 memblock_size,
1534 u32 item_size,
1535 u32 items_priv_size,
1536 u32 items_initial,
1537 u32 items_max,
1538 struct vxge_hw_mempool_cbs *mp_callback,
1539 void *userdata)
1540 {
1541 enum vxge_hw_status status = VXGE_HW_OK;
1542 u32 memblocks_to_allocate;
1543 struct vxge_hw_mempool *mempool = NULL;
1544 u32 allocated;
1545
1546 if (memblock_size < item_size) {
1547 status = VXGE_HW_FAIL;
1548 goto exit;
1549 }
1550
1551 mempool = (struct vxge_hw_mempool *)
1552 vmalloc(sizeof(struct vxge_hw_mempool));
1553 if (mempool == NULL) {
1554 status = VXGE_HW_ERR_OUT_OF_MEMORY;
1555 goto exit;
1556 }
1557 memset(mempool, 0, sizeof(struct vxge_hw_mempool));
1558
1559 mempool->devh = devh;
1560 mempool->memblock_size = memblock_size;
1561 mempool->items_max = items_max;
1562 mempool->items_initial = items_initial;
1563 mempool->item_size = item_size;
1564 mempool->items_priv_size = items_priv_size;
1565 mempool->item_func_alloc = mp_callback->item_func_alloc;
1566 mempool->userdata = userdata;
1567
1568 mempool->memblocks_allocated = 0;
1569
1570 mempool->items_per_memblock = memblock_size / item_size;
1571
1572 mempool->memblocks_max = (items_max + mempool->items_per_memblock - 1) /
1573 mempool->items_per_memblock;
1574
1575 /* allocate array of memblocks */
1576 mempool->memblocks_arr =
1577 (void **) vmalloc(sizeof(void *) * mempool->memblocks_max);
1578 if (mempool->memblocks_arr == NULL) {
1579 __vxge_hw_mempool_destroy(mempool);
1580 status = VXGE_HW_ERR_OUT_OF_MEMORY;
1581 mempool = NULL;
1582 goto exit;
1583 }
1584 memset(mempool->memblocks_arr, 0,
1585 sizeof(void *) * mempool->memblocks_max);
1586
1587 /* allocate array of private parts of items per memblocks */
1588 mempool->memblocks_priv_arr =
1589 (void **) vmalloc(sizeof(void *) * mempool->memblocks_max);
1590 if (mempool->memblocks_priv_arr == NULL) {
1591 __vxge_hw_mempool_destroy(mempool);
1592 status = VXGE_HW_ERR_OUT_OF_MEMORY;
1593 mempool = NULL;
1594 goto exit;
1595 }
1596 memset(mempool->memblocks_priv_arr, 0,
1597 sizeof(void *) * mempool->memblocks_max);
1598
1599 /* allocate array of memblocks DMA objects */
1600 mempool->memblocks_dma_arr = (struct vxge_hw_mempool_dma *)
1601 vmalloc(sizeof(struct vxge_hw_mempool_dma) *
1602 mempool->memblocks_max);
1603
1604 if (mempool->memblocks_dma_arr == NULL) {
1605 __vxge_hw_mempool_destroy(mempool);
1606 status = VXGE_HW_ERR_OUT_OF_MEMORY;
1607 mempool = NULL;
1608 goto exit;
1609 }
1610 memset(mempool->memblocks_dma_arr, 0,
1611 sizeof(struct vxge_hw_mempool_dma) *
1612 mempool->memblocks_max);
1613
1614 /* allocate hash array of items */
1615 mempool->items_arr =
1616 (void **) vmalloc(sizeof(void *) * mempool->items_max);
1617 if (mempool->items_arr == NULL) {
1618 __vxge_hw_mempool_destroy(mempool);
1619 status = VXGE_HW_ERR_OUT_OF_MEMORY;
1620 mempool = NULL;
1621 goto exit;
1622 }
1623 memset(mempool->items_arr, 0, sizeof(void *) * mempool->items_max);
1624
1625 /* calculate initial number of memblocks */
1626 memblocks_to_allocate = (mempool->items_initial +
1627 mempool->items_per_memblock - 1) /
1628 mempool->items_per_memblock;
1629
1630 /* pre-allocate the mempool */
1631 status = __vxge_hw_mempool_grow(mempool, memblocks_to_allocate,
1632 &allocated);
1633 if (status != VXGE_HW_OK) {
1634 __vxge_hw_mempool_destroy(mempool);
1635 status = VXGE_HW_ERR_OUT_OF_MEMORY;
1636 mempool = NULL;
1637 goto exit;
1638 }
1639
1640 exit:
1641 return mempool;
1642 }
1643
1644 /*
1645 * vxge_hw_mempool_destroy
1646 */
1647 void __vxge_hw_mempool_destroy(struct vxge_hw_mempool *mempool)
1648 {
1649 u32 i, j;
1650 struct __vxge_hw_device *devh = mempool->devh;
1651
1652 for (i = 0; i < mempool->memblocks_allocated; i++) {
1653 struct vxge_hw_mempool_dma *dma_object;
1654
1655 vxge_assert(mempool->memblocks_arr[i]);
1656 vxge_assert(mempool->memblocks_dma_arr + i);
1657
1658 dma_object = mempool->memblocks_dma_arr + i;
1659
1660 for (j = 0; j < mempool->items_per_memblock; j++) {
1661 u32 index = i * mempool->items_per_memblock + j;
1662
1663 /* to skip last partially filled(if any) memblock */
1664 if (index >= mempool->items_current)
1665 break;
1666 }
1667
1668 vfree(mempool->memblocks_priv_arr[i]);
1669
1670 __vxge_hw_blockpool_free(devh, mempool->memblocks_arr[i],
1671 mempool->memblock_size, dma_object);
1672 }
1673
1674 vfree(mempool->items_arr);
1675
1676 vfree(mempool->memblocks_dma_arr);
1677
1678 vfree(mempool->memblocks_priv_arr);
1679
1680 vfree(mempool->memblocks_arr);
1681
1682 vfree(mempool);
1683 }
1684
1685 /*
1686 * __vxge_hw_device_fifo_config_check - Check fifo configuration.
1687 * Check the fifo configuration
1688 */
1689 enum vxge_hw_status
1690 __vxge_hw_device_fifo_config_check(struct vxge_hw_fifo_config *fifo_config)
1691 {
1692 if ((fifo_config->fifo_blocks < VXGE_HW_MIN_FIFO_BLOCKS) ||
1693 (fifo_config->fifo_blocks > VXGE_HW_MAX_FIFO_BLOCKS))
1694 return VXGE_HW_BADCFG_FIFO_BLOCKS;
1695
1696 return VXGE_HW_OK;
1697 }
1698
1699 /*
1700 * __vxge_hw_device_vpath_config_check - Check vpath configuration.
1701 * Check the vpath configuration
1702 */
1703 enum vxge_hw_status
1704 __vxge_hw_device_vpath_config_check(struct vxge_hw_vp_config *vp_config)
1705 {
1706 enum vxge_hw_status status;
1707
1708 if ((vp_config->min_bandwidth < VXGE_HW_VPATH_BANDWIDTH_MIN) ||
1709 (vp_config->min_bandwidth >
1710 VXGE_HW_VPATH_BANDWIDTH_MAX))
1711 return VXGE_HW_BADCFG_VPATH_MIN_BANDWIDTH;
1712
1713 status = __vxge_hw_device_fifo_config_check(&vp_config->fifo);
1714 if (status != VXGE_HW_OK)
1715 return status;
1716
1717 if ((vp_config->mtu != VXGE_HW_VPATH_USE_FLASH_DEFAULT_INITIAL_MTU) &&
1718 ((vp_config->mtu < VXGE_HW_VPATH_MIN_INITIAL_MTU) ||
1719 (vp_config->mtu > VXGE_HW_VPATH_MAX_INITIAL_MTU)))
1720 return VXGE_HW_BADCFG_VPATH_MTU;
1721
1722 if ((vp_config->rpa_strip_vlan_tag !=
1723 VXGE_HW_VPATH_RPA_STRIP_VLAN_TAG_USE_FLASH_DEFAULT) &&
1724 (vp_config->rpa_strip_vlan_tag !=
1725 VXGE_HW_VPATH_RPA_STRIP_VLAN_TAG_ENABLE) &&
1726 (vp_config->rpa_strip_vlan_tag !=
1727 VXGE_HW_VPATH_RPA_STRIP_VLAN_TAG_DISABLE))
1728 return VXGE_HW_BADCFG_VPATH_RPA_STRIP_VLAN_TAG;
1729
1730 return VXGE_HW_OK;
1731 }
1732
1733 /*
1734 * __vxge_hw_device_config_check - Check device configuration.
1735 * Check the device configuration
1736 */
1737 enum vxge_hw_status
1738 __vxge_hw_device_config_check(struct vxge_hw_device_config *new_config)
1739 {
1740 u32 i;
1741 enum vxge_hw_status status;
1742
1743 if ((new_config->intr_mode != VXGE_HW_INTR_MODE_IRQLINE) &&
1744 (new_config->intr_mode != VXGE_HW_INTR_MODE_MSIX) &&
1745 (new_config->intr_mode != VXGE_HW_INTR_MODE_MSIX_ONE_SHOT) &&
1746 (new_config->intr_mode != VXGE_HW_INTR_MODE_DEF))
1747 return VXGE_HW_BADCFG_INTR_MODE;
1748
1749 if ((new_config->rts_mac_en != VXGE_HW_RTS_MAC_DISABLE) &&
1750 (new_config->rts_mac_en != VXGE_HW_RTS_MAC_ENABLE))
1751 return VXGE_HW_BADCFG_RTS_MAC_EN;
1752
1753 for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) {
1754 status = __vxge_hw_device_vpath_config_check(
1755 &new_config->vp_config[i]);
1756 if (status != VXGE_HW_OK)
1757 return status;
1758 }
1759
1760 return VXGE_HW_OK;
1761 }
1762
1763 /*
1764 * vxge_hw_device_config_default_get - Initialize device config with defaults.
1765 * Initialize Titan device config with default values.
1766 */
1767 enum vxge_hw_status __devinit
1768 vxge_hw_device_config_default_get(struct vxge_hw_device_config *device_config)
1769 {
1770 u32 i;
1771
1772 device_config->dma_blockpool_initial =
1773 VXGE_HW_INITIAL_DMA_BLOCK_POOL_SIZE;
1774 device_config->dma_blockpool_max = VXGE_HW_MAX_DMA_BLOCK_POOL_SIZE;
1775 device_config->intr_mode = VXGE_HW_INTR_MODE_DEF;
1776 device_config->rth_en = VXGE_HW_RTH_DEFAULT;
1777 device_config->rth_it_type = VXGE_HW_RTH_IT_TYPE_DEFAULT;
1778 device_config->device_poll_millis = VXGE_HW_DEF_DEVICE_POLL_MILLIS;
1779 device_config->rts_mac_en = VXGE_HW_RTS_MAC_DEFAULT;
1780
1781 for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) {
1782
1783 device_config->vp_config[i].vp_id = i;
1784
1785 device_config->vp_config[i].min_bandwidth =
1786 VXGE_HW_VPATH_BANDWIDTH_DEFAULT;
1787
1788 device_config->vp_config[i].ring.enable = VXGE_HW_RING_DEFAULT;
1789
1790 device_config->vp_config[i].ring.ring_blocks =
1791 VXGE_HW_DEF_RING_BLOCKS;
1792
1793 device_config->vp_config[i].ring.buffer_mode =
1794 VXGE_HW_RING_RXD_BUFFER_MODE_DEFAULT;
1795
1796 device_config->vp_config[i].ring.scatter_mode =
1797 VXGE_HW_RING_SCATTER_MODE_USE_FLASH_DEFAULT;
1798
1799 device_config->vp_config[i].ring.rxds_limit =
1800 VXGE_HW_DEF_RING_RXDS_LIMIT;
1801
1802 device_config->vp_config[i].fifo.enable = VXGE_HW_FIFO_ENABLE;
1803
1804 device_config->vp_config[i].fifo.fifo_blocks =
1805 VXGE_HW_MIN_FIFO_BLOCKS;
1806
1807 device_config->vp_config[i].fifo.max_frags =
1808 VXGE_HW_MAX_FIFO_FRAGS;
1809
1810 device_config->vp_config[i].fifo.memblock_size =
1811 VXGE_HW_DEF_FIFO_MEMBLOCK_SIZE;
1812
1813 device_config->vp_config[i].fifo.alignment_size =
1814 VXGE_HW_DEF_FIFO_ALIGNMENT_SIZE;
1815
1816 device_config->vp_config[i].fifo.intr =
1817 VXGE_HW_FIFO_QUEUE_INTR_DEFAULT;
1818
1819 device_config->vp_config[i].fifo.no_snoop_bits =
1820 VXGE_HW_FIFO_NO_SNOOP_DEFAULT;
1821 device_config->vp_config[i].tti.intr_enable =
1822 VXGE_HW_TIM_INTR_DEFAULT;
1823
1824 device_config->vp_config[i].tti.btimer_val =
1825 VXGE_HW_USE_FLASH_DEFAULT;
1826
1827 device_config->vp_config[i].tti.timer_ac_en =
1828 VXGE_HW_USE_FLASH_DEFAULT;
1829
1830 device_config->vp_config[i].tti.timer_ci_en =
1831 VXGE_HW_USE_FLASH_DEFAULT;
1832
1833 device_config->vp_config[i].tti.timer_ri_en =
1834 VXGE_HW_USE_FLASH_DEFAULT;
1835
1836 device_config->vp_config[i].tti.rtimer_val =
1837 VXGE_HW_USE_FLASH_DEFAULT;
1838
1839 device_config->vp_config[i].tti.util_sel =
1840 VXGE_HW_USE_FLASH_DEFAULT;
1841
1842 device_config->vp_config[i].tti.ltimer_val =
1843 VXGE_HW_USE_FLASH_DEFAULT;
1844
1845 device_config->vp_config[i].tti.urange_a =
1846 VXGE_HW_USE_FLASH_DEFAULT;
1847
1848 device_config->vp_config[i].tti.uec_a =
1849 VXGE_HW_USE_FLASH_DEFAULT;
1850
1851 device_config->vp_config[i].tti.urange_b =
1852 VXGE_HW_USE_FLASH_DEFAULT;
1853
1854 device_config->vp_config[i].tti.uec_b =
1855 VXGE_HW_USE_FLASH_DEFAULT;
1856
1857 device_config->vp_config[i].tti.urange_c =
1858 VXGE_HW_USE_FLASH_DEFAULT;
1859
1860 device_config->vp_config[i].tti.uec_c =
1861 VXGE_HW_USE_FLASH_DEFAULT;
1862
1863 device_config->vp_config[i].tti.uec_d =
1864 VXGE_HW_USE_FLASH_DEFAULT;
1865
1866 device_config->vp_config[i].rti.intr_enable =
1867 VXGE_HW_TIM_INTR_DEFAULT;
1868
1869 device_config->vp_config[i].rti.btimer_val =
1870 VXGE_HW_USE_FLASH_DEFAULT;
1871
1872 device_config->vp_config[i].rti.timer_ac_en =
1873 VXGE_HW_USE_FLASH_DEFAULT;
1874
1875 device_config->vp_config[i].rti.timer_ci_en =
1876 VXGE_HW_USE_FLASH_DEFAULT;
1877
1878 device_config->vp_config[i].rti.timer_ri_en =
1879 VXGE_HW_USE_FLASH_DEFAULT;
1880
1881 device_config->vp_config[i].rti.rtimer_val =
1882 VXGE_HW_USE_FLASH_DEFAULT;
1883
1884 device_config->vp_config[i].rti.util_sel =
1885 VXGE_HW_USE_FLASH_DEFAULT;
1886
1887 device_config->vp_config[i].rti.ltimer_val =
1888 VXGE_HW_USE_FLASH_DEFAULT;
1889
1890 device_config->vp_config[i].rti.urange_a =
1891 VXGE_HW_USE_FLASH_DEFAULT;
1892
1893 device_config->vp_config[i].rti.uec_a =
1894 VXGE_HW_USE_FLASH_DEFAULT;
1895
1896 device_config->vp_config[i].rti.urange_b =
1897 VXGE_HW_USE_FLASH_DEFAULT;
1898
1899 device_config->vp_config[i].rti.uec_b =
1900 VXGE_HW_USE_FLASH_DEFAULT;
1901
1902 device_config->vp_config[i].rti.urange_c =
1903 VXGE_HW_USE_FLASH_DEFAULT;
1904
1905 device_config->vp_config[i].rti.uec_c =
1906 VXGE_HW_USE_FLASH_DEFAULT;
1907
1908 device_config->vp_config[i].rti.uec_d =
1909 VXGE_HW_USE_FLASH_DEFAULT;
1910
1911 device_config->vp_config[i].mtu =
1912 VXGE_HW_VPATH_USE_FLASH_DEFAULT_INITIAL_MTU;
1913
1914 device_config->vp_config[i].rpa_strip_vlan_tag =
1915 VXGE_HW_VPATH_RPA_STRIP_VLAN_TAG_USE_FLASH_DEFAULT;
1916 }
1917
1918 return VXGE_HW_OK;
1919 }
1920
1921 /*
1922 * _hw_legacy_swapper_set - Set the swapper bits for the legacy secion.
1923 * Set the swapper bits appropriately for the lagacy section.
1924 */
1925 enum vxge_hw_status
1926 __vxge_hw_legacy_swapper_set(struct vxge_hw_legacy_reg __iomem *legacy_reg)
1927 {
1928 u64 val64;
1929 enum vxge_hw_status status = VXGE_HW_OK;
1930
1931 val64 = readq(&legacy_reg->toc_swapper_fb);
1932
1933 wmb();
1934
1935 switch (val64) {
1936
1937 case VXGE_HW_SWAPPER_INITIAL_VALUE:
1938 return status;
1939
1940 case VXGE_HW_SWAPPER_BYTE_SWAPPED_BIT_FLIPPED:
1941 writeq(VXGE_HW_SWAPPER_READ_BYTE_SWAP_ENABLE,
1942 &legacy_reg->pifm_rd_swap_en);
1943 writeq(VXGE_HW_SWAPPER_READ_BIT_FLAP_ENABLE,
1944 &legacy_reg->pifm_rd_flip_en);
1945 writeq(VXGE_HW_SWAPPER_WRITE_BYTE_SWAP_ENABLE,
1946 &legacy_reg->pifm_wr_swap_en);
1947 writeq(VXGE_HW_SWAPPER_WRITE_BIT_FLAP_ENABLE,
1948 &legacy_reg->pifm_wr_flip_en);
1949 break;
1950
1951 case VXGE_HW_SWAPPER_BYTE_SWAPPED:
1952 writeq(VXGE_HW_SWAPPER_READ_BYTE_SWAP_ENABLE,
1953 &legacy_reg->pifm_rd_swap_en);
1954 writeq(VXGE_HW_SWAPPER_WRITE_BYTE_SWAP_ENABLE,
1955 &legacy_reg->pifm_wr_swap_en);
1956 break;
1957
1958 case VXGE_HW_SWAPPER_BIT_FLIPPED:
1959 writeq(VXGE_HW_SWAPPER_READ_BIT_FLAP_ENABLE,
1960 &legacy_reg->pifm_rd_flip_en);
1961 writeq(VXGE_HW_SWAPPER_WRITE_BIT_FLAP_ENABLE,
1962 &legacy_reg->pifm_wr_flip_en);
1963 break;
1964 }
1965
1966 wmb();
1967
1968 val64 = readq(&legacy_reg->toc_swapper_fb);
1969
1970 if (val64 != VXGE_HW_SWAPPER_INITIAL_VALUE)
1971 status = VXGE_HW_ERR_SWAPPER_CTRL;
1972
1973 return status;
1974 }
1975
1976 /*
1977 * __vxge_hw_vpath_swapper_set - Set the swapper bits for the vpath.
1978 * Set the swapper bits appropriately for the vpath.
1979 */
1980 enum vxge_hw_status
1981 __vxge_hw_vpath_swapper_set(struct vxge_hw_vpath_reg __iomem *vpath_reg)
1982 {
1983 #ifndef __BIG_ENDIAN
1984 u64 val64;
1985
1986 val64 = readq(&vpath_reg->vpath_general_cfg1);
1987 wmb();
1988 val64 |= VXGE_HW_VPATH_GENERAL_CFG1_CTL_BYTE_SWAPEN;
1989 writeq(val64, &vpath_reg->vpath_general_cfg1);
1990 wmb();
1991 #endif
1992 return VXGE_HW_OK;
1993 }
1994
1995 /*
1996 * __vxge_hw_kdfc_swapper_set - Set the swapper bits for the kdfc.
1997 * Set the swapper bits appropriately for the vpath.
1998 */
1999 enum vxge_hw_status
2000 __vxge_hw_kdfc_swapper_set(
2001 struct vxge_hw_legacy_reg __iomem *legacy_reg,
2002 struct vxge_hw_vpath_reg __iomem *vpath_reg)
2003 {
2004 u64 val64;
2005
2006 val64 = readq(&legacy_reg->pifm_wr_swap_en);
2007
2008 if (val64 == VXGE_HW_SWAPPER_WRITE_BYTE_SWAP_ENABLE) {
2009 val64 = readq(&vpath_reg->kdfcctl_cfg0);
2010 wmb();
2011
2012 val64 |= VXGE_HW_KDFCCTL_CFG0_BYTE_SWAPEN_FIFO0 |
2013 VXGE_HW_KDFCCTL_CFG0_BYTE_SWAPEN_FIFO1 |
2014 VXGE_HW_KDFCCTL_CFG0_BYTE_SWAPEN_FIFO2;
2015
2016 writeq(val64, &vpath_reg->kdfcctl_cfg0);
2017 wmb();
2018 }
2019
2020 return VXGE_HW_OK;
2021 }
2022
2023 /*
2024 * vxge_hw_mgmt_device_config - Retrieve device configuration.
2025 * Get device configuration. Permits to retrieve at run-time configuration
2026 * values that were used to initialize and configure the device.
2027 */
2028 enum vxge_hw_status
2029 vxge_hw_mgmt_device_config(struct __vxge_hw_device *hldev,
2030 struct vxge_hw_device_config *dev_config, int size)
2031 {
2032
2033 if ((hldev == NULL) || (hldev->magic != VXGE_HW_DEVICE_MAGIC))
2034 return VXGE_HW_ERR_INVALID_DEVICE;
2035
2036 if (size != sizeof(struct vxge_hw_device_config))
2037 return VXGE_HW_ERR_VERSION_CONFLICT;
2038
2039 memcpy(dev_config, &hldev->config,
2040 sizeof(struct vxge_hw_device_config));
2041
2042 return VXGE_HW_OK;
2043 }
2044
2045 /*
2046 * vxge_hw_mgmt_reg_read - Read Titan register.
2047 */
2048 enum vxge_hw_status
2049 vxge_hw_mgmt_reg_read(struct __vxge_hw_device *hldev,
2050 enum vxge_hw_mgmt_reg_type type,
2051 u32 index, u32 offset, u64 *value)
2052 {
2053 enum vxge_hw_status status = VXGE_HW_OK;
2054
2055 if ((hldev == NULL) || (hldev->magic != VXGE_HW_DEVICE_MAGIC)) {
2056 status = VXGE_HW_ERR_INVALID_DEVICE;
2057 goto exit;
2058 }
2059
2060 switch (type) {
2061 case vxge_hw_mgmt_reg_type_legacy:
2062 if (offset > sizeof(struct vxge_hw_legacy_reg) - 8) {
2063 status = VXGE_HW_ERR_INVALID_OFFSET;
2064 break;
2065 }
2066 *value = readq((void __iomem *)hldev->legacy_reg + offset);
2067 break;
2068 case vxge_hw_mgmt_reg_type_toc:
2069 if (offset > sizeof(struct vxge_hw_toc_reg) - 8) {
2070 status = VXGE_HW_ERR_INVALID_OFFSET;
2071 break;
2072 }
2073 *value = readq((void __iomem *)hldev->toc_reg + offset);
2074 break;
2075 case vxge_hw_mgmt_reg_type_common:
2076 if (offset > sizeof(struct vxge_hw_common_reg) - 8) {
2077 status = VXGE_HW_ERR_INVALID_OFFSET;
2078 break;
2079 }
2080 *value = readq((void __iomem *)hldev->common_reg + offset);
2081 break;
2082 case vxge_hw_mgmt_reg_type_mrpcim:
2083 if (!(hldev->access_rights &
2084 VXGE_HW_DEVICE_ACCESS_RIGHT_MRPCIM)) {
2085 status = VXGE_HW_ERR_PRIVILAGED_OPEARATION;
2086 break;
2087 }
2088 if (offset > sizeof(struct vxge_hw_mrpcim_reg) - 8) {
2089 status = VXGE_HW_ERR_INVALID_OFFSET;
2090 break;
2091 }
2092 *value = readq((void __iomem *)hldev->mrpcim_reg + offset);
2093 break;
2094 case vxge_hw_mgmt_reg_type_srpcim:
2095 if (!(hldev->access_rights &
2096 VXGE_HW_DEVICE_ACCESS_RIGHT_SRPCIM)) {
2097 status = VXGE_HW_ERR_PRIVILAGED_OPEARATION;
2098 break;
2099 }
2100 if (index > VXGE_HW_TITAN_SRPCIM_REG_SPACES - 1) {
2101 status = VXGE_HW_ERR_INVALID_INDEX;
2102 break;
2103 }
2104 if (offset > sizeof(struct vxge_hw_srpcim_reg) - 8) {
2105 status = VXGE_HW_ERR_INVALID_OFFSET;
2106 break;
2107 }
2108 *value = readq((void __iomem *)hldev->srpcim_reg[index] +
2109 offset);
2110 break;
2111 case vxge_hw_mgmt_reg_type_vpmgmt:
2112 if ((index > VXGE_HW_TITAN_VPMGMT_REG_SPACES - 1) ||
2113 (!(hldev->vpath_assignments & vxge_mBIT(index)))) {
2114 status = VXGE_HW_ERR_INVALID_INDEX;
2115 break;
2116 }
2117 if (offset > sizeof(struct vxge_hw_vpmgmt_reg) - 8) {
2118 status = VXGE_HW_ERR_INVALID_OFFSET;
2119 break;
2120 }
2121 *value = readq((void __iomem *)hldev->vpmgmt_reg[index] +
2122 offset);
2123 break;
2124 case vxge_hw_mgmt_reg_type_vpath:
2125 if ((index > VXGE_HW_TITAN_VPATH_REG_SPACES - 1) ||
2126 (!(hldev->vpath_assignments & vxge_mBIT(index)))) {
2127 status = VXGE_HW_ERR_INVALID_INDEX;
2128 break;
2129 }
2130 if (index > VXGE_HW_TITAN_VPATH_REG_SPACES - 1) {
2131 status = VXGE_HW_ERR_INVALID_INDEX;
2132 break;
2133 }
2134 if (offset > sizeof(struct vxge_hw_vpath_reg) - 8) {
2135 status = VXGE_HW_ERR_INVALID_OFFSET;
2136 break;
2137 }
2138 *value = readq((void __iomem *)hldev->vpath_reg[index] +
2139 offset);
2140 break;
2141 default:
2142 status = VXGE_HW_ERR_INVALID_TYPE;
2143 break;
2144 }
2145
2146 exit:
2147 return status;
2148 }
2149
2150 /*
2151 * vxge_hw_vpath_strip_fcs_check - Check for FCS strip.
2152 */
2153 enum vxge_hw_status
2154 vxge_hw_vpath_strip_fcs_check(struct __vxge_hw_device *hldev, u64 vpath_mask)
2155 {
2156 struct vxge_hw_vpmgmt_reg __iomem *vpmgmt_reg;
2157 enum vxge_hw_status status = VXGE_HW_OK;
2158 int i = 0, j = 0;
2159
2160 for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) {
2161 if (!((vpath_mask) & vxge_mBIT(i)))
2162 continue;
2163 vpmgmt_reg = hldev->vpmgmt_reg[i];
2164 for (j = 0; j < VXGE_HW_MAC_MAX_MAC_PORT_ID; j++) {
2165 if (readq(&vpmgmt_reg->rxmac_cfg0_port_vpmgmt_clone[j])
2166 & VXGE_HW_RXMAC_CFG0_PORT_VPMGMT_CLONE_STRIP_FCS)
2167 return VXGE_HW_FAIL;
2168 }
2169 }
2170 return status;
2171 }
2172 /*
2173 * vxge_hw_mgmt_reg_Write - Write Titan register.
2174 */
2175 enum vxge_hw_status
2176 vxge_hw_mgmt_reg_write(struct __vxge_hw_device *hldev,
2177 enum vxge_hw_mgmt_reg_type type,
2178 u32 index, u32 offset, u64 value)
2179 {
2180 enum vxge_hw_status status = VXGE_HW_OK;
2181
2182 if ((hldev == NULL) || (hldev->magic != VXGE_HW_DEVICE_MAGIC)) {
2183 status = VXGE_HW_ERR_INVALID_DEVICE;
2184 goto exit;
2185 }
2186
2187 switch (type) {
2188 case vxge_hw_mgmt_reg_type_legacy:
2189 if (offset > sizeof(struct vxge_hw_legacy_reg) - 8) {
2190 status = VXGE_HW_ERR_INVALID_OFFSET;
2191 break;
2192 }
2193 writeq(value, (void __iomem *)hldev->legacy_reg + offset);
2194 break;
2195 case vxge_hw_mgmt_reg_type_toc:
2196 if (offset > sizeof(struct vxge_hw_toc_reg) - 8) {
2197 status = VXGE_HW_ERR_INVALID_OFFSET;
2198 break;
2199 }
2200 writeq(value, (void __iomem *)hldev->toc_reg + offset);
2201 break;
2202 case vxge_hw_mgmt_reg_type_common:
2203 if (offset > sizeof(struct vxge_hw_common_reg) - 8) {
2204 status = VXGE_HW_ERR_INVALID_OFFSET;
2205 break;
2206 }
2207 writeq(value, (void __iomem *)hldev->common_reg + offset);
2208 break;
2209 case vxge_hw_mgmt_reg_type_mrpcim:
2210 if (!(hldev->access_rights &
2211 VXGE_HW_DEVICE_ACCESS_RIGHT_MRPCIM)) {
2212 status = VXGE_HW_ERR_PRIVILAGED_OPEARATION;
2213 break;
2214 }
2215 if (offset > sizeof(struct vxge_hw_mrpcim_reg) - 8) {
2216 status = VXGE_HW_ERR_INVALID_OFFSET;
2217 break;
2218 }
2219 writeq(value, (void __iomem *)hldev->mrpcim_reg + offset);
2220 break;
2221 case vxge_hw_mgmt_reg_type_srpcim:
2222 if (!(hldev->access_rights &
2223 VXGE_HW_DEVICE_ACCESS_RIGHT_SRPCIM)) {
2224 status = VXGE_HW_ERR_PRIVILAGED_OPEARATION;
2225 break;
2226 }
2227 if (index > VXGE_HW_TITAN_SRPCIM_REG_SPACES - 1) {
2228 status = VXGE_HW_ERR_INVALID_INDEX;
2229 break;
2230 }
2231 if (offset > sizeof(struct vxge_hw_srpcim_reg) - 8) {
2232 status = VXGE_HW_ERR_INVALID_OFFSET;
2233 break;
2234 }
2235 writeq(value, (void __iomem *)hldev->srpcim_reg[index] +
2236 offset);
2237
2238 break;
2239 case vxge_hw_mgmt_reg_type_vpmgmt:
2240 if ((index > VXGE_HW_TITAN_VPMGMT_REG_SPACES - 1) ||
2241 (!(hldev->vpath_assignments & vxge_mBIT(index)))) {
2242 status = VXGE_HW_ERR_INVALID_INDEX;
2243 break;
2244 }
2245 if (offset > sizeof(struct vxge_hw_vpmgmt_reg) - 8) {
2246 status = VXGE_HW_ERR_INVALID_OFFSET;
2247 break;
2248 }
2249 writeq(value, (void __iomem *)hldev->vpmgmt_reg[index] +
2250 offset);
2251 break;
2252 case vxge_hw_mgmt_reg_type_vpath:
2253 if ((index > VXGE_HW_TITAN_VPATH_REG_SPACES-1) ||
2254 (!(hldev->vpath_assignments & vxge_mBIT(index)))) {
2255 status = VXGE_HW_ERR_INVALID_INDEX;
2256 break;
2257 }
2258 if (offset > sizeof(struct vxge_hw_vpath_reg) - 8) {
2259 status = VXGE_HW_ERR_INVALID_OFFSET;
2260 break;
2261 }
2262 writeq(value, (void __iomem *)hldev->vpath_reg[index] +
2263 offset);
2264 break;
2265 default:
2266 status = VXGE_HW_ERR_INVALID_TYPE;
2267 break;
2268 }
2269 exit:
2270 return status;
2271 }
2272
2273 /*
2274 * __vxge_hw_fifo_mempool_item_alloc - Allocate List blocks for TxD
2275 * list callback
2276 * This function is callback passed to __vxge_hw_mempool_create to create memory
2277 * pool for TxD list
2278 */
2279 static void
2280 __vxge_hw_fifo_mempool_item_alloc(
2281 struct vxge_hw_mempool *mempoolh,
2282 u32 memblock_index, struct vxge_hw_mempool_dma *dma_object,
2283 u32 index, u32 is_last)
2284 {
2285 u32 memblock_item_idx;
2286 struct __vxge_hw_fifo_txdl_priv *txdl_priv;
2287 struct vxge_hw_fifo_txd *txdp =
2288 (struct vxge_hw_fifo_txd *)mempoolh->items_arr[index];
2289 struct __vxge_hw_fifo *fifo =
2290 (struct __vxge_hw_fifo *)mempoolh->userdata;
2291 void *memblock = mempoolh->memblocks_arr[memblock_index];
2292
2293 vxge_assert(txdp);
2294
2295 txdp->host_control = (u64) (size_t)
2296 __vxge_hw_mempool_item_priv(mempoolh, memblock_index, txdp,
2297 &memblock_item_idx);
2298
2299 txdl_priv = __vxge_hw_fifo_txdl_priv(fifo, txdp);
2300
2301 vxge_assert(txdl_priv);
2302
2303 fifo->channel.reserve_arr[fifo->channel.reserve_ptr - 1 - index] = txdp;
2304
2305 /* pre-format HW's TxDL's private */
2306 txdl_priv->dma_offset = (char *)txdp - (char *)memblock;
2307 txdl_priv->dma_addr = dma_object->addr + txdl_priv->dma_offset;
2308 txdl_priv->dma_handle = dma_object->handle;
2309 txdl_priv->memblock = memblock;
2310 txdl_priv->first_txdp = txdp;
2311 txdl_priv->next_txdl_priv = NULL;
2312 txdl_priv->alloc_frags = 0;
2313 }
2314
2315 /*
2316 * __vxge_hw_fifo_create - Create a FIFO
2317 * This function creates FIFO and initializes it.
2318 */
2319 enum vxge_hw_status
2320 __vxge_hw_fifo_create(struct __vxge_hw_vpath_handle *vp,
2321 struct vxge_hw_fifo_attr *attr)
2322 {
2323 enum vxge_hw_status status = VXGE_HW_OK;
2324 struct __vxge_hw_fifo *fifo;
2325 struct vxge_hw_fifo_config *config;
2326 u32 txdl_size, txdl_per_memblock;
2327 struct vxge_hw_mempool_cbs fifo_mp_callback;
2328 struct __vxge_hw_virtualpath *vpath;
2329
2330 if ((vp == NULL) || (attr == NULL)) {
2331 status = VXGE_HW_ERR_INVALID_HANDLE;
2332 goto exit;
2333 }
2334 vpath = vp->vpath;
2335 config = &vpath->hldev->config.vp_config[vpath->vp_id].fifo;
2336
2337 txdl_size = config->max_frags * sizeof(struct vxge_hw_fifo_txd);
2338
2339 txdl_per_memblock = config->memblock_size / txdl_size;
2340
2341 fifo = (struct __vxge_hw_fifo *)__vxge_hw_channel_allocate(vp,
2342 VXGE_HW_CHANNEL_TYPE_FIFO,
2343 config->fifo_blocks * txdl_per_memblock,
2344 attr->per_txdl_space, attr->userdata);
2345
2346 if (fifo == NULL) {
2347 status = VXGE_HW_ERR_OUT_OF_MEMORY;
2348 goto exit;
2349 }
2350
2351 vpath->fifoh = fifo;
2352 fifo->nofl_db = vpath->nofl_db;
2353
2354 fifo->vp_id = vpath->vp_id;
2355 fifo->vp_reg = vpath->vp_reg;
2356 fifo->stats = &vpath->sw_stats->fifo_stats;
2357
2358 fifo->config = config;
2359
2360 /* apply "interrupts per txdl" attribute */
2361 fifo->interrupt_type = VXGE_HW_FIFO_TXD_INT_TYPE_UTILZ;
2362
2363 if (fifo->config->intr)
2364 fifo->interrupt_type = VXGE_HW_FIFO_TXD_INT_TYPE_PER_LIST;
2365
2366 fifo->no_snoop_bits = config->no_snoop_bits;
2367
2368 /*
2369 * FIFO memory management strategy:
2370 *
2371 * TxDL split into three independent parts:
2372 * - set of TxD's
2373 * - TxD HW private part
2374 * - driver private part
2375 *
2376 * Adaptative memory allocation used. i.e. Memory allocated on
2377 * demand with the size which will fit into one memory block.
2378 * One memory block may contain more than one TxDL.
2379 *
2380 * During "reserve" operations more memory can be allocated on demand
2381 * for example due to FIFO full condition.
2382 *
2383 * Pool of memory memblocks never shrinks except in __vxge_hw_fifo_close
2384 * routine which will essentially stop the channel and free resources.
2385 */
2386
2387 /* TxDL common private size == TxDL private + driver private */
2388 fifo->priv_size =
2389 sizeof(struct __vxge_hw_fifo_txdl_priv) + attr->per_txdl_space;
2390 fifo->priv_size = ((fifo->priv_size + VXGE_CACHE_LINE_SIZE - 1) /
2391 VXGE_CACHE_LINE_SIZE) * VXGE_CACHE_LINE_SIZE;
2392
2393 fifo->per_txdl_space = attr->per_txdl_space;
2394
2395 /* recompute txdl size to be cacheline aligned */
2396 fifo->txdl_size = txdl_size;
2397 fifo->txdl_per_memblock = txdl_per_memblock;
2398
2399 fifo->txdl_term = attr->txdl_term;
2400 fifo->callback = attr->callback;
2401
2402 if (fifo->txdl_per_memblock == 0) {
2403 __vxge_hw_fifo_delete(vp);
2404 status = VXGE_HW_ERR_INVALID_BLOCK_SIZE;
2405 goto exit;
2406 }
2407
2408 fifo_mp_callback.item_func_alloc = __vxge_hw_fifo_mempool_item_alloc;
2409
2410 fifo->mempool =
2411 __vxge_hw_mempool_create(vpath->hldev,
2412 fifo->config->memblock_size,
2413 fifo->txdl_size,
2414 fifo->priv_size,
2415 (fifo->config->fifo_blocks * fifo->txdl_per_memblock),
2416 (fifo->config->fifo_blocks * fifo->txdl_per_memblock),
2417 &fifo_mp_callback,
2418 fifo);
2419
2420 if (fifo->mempool == NULL) {
2421 __vxge_hw_fifo_delete(vp);
2422 status = VXGE_HW_ERR_OUT_OF_MEMORY;
2423 goto exit;
2424 }
2425
2426 status = __vxge_hw_channel_initialize(&fifo->channel);
2427 if (status != VXGE_HW_OK) {
2428 __vxge_hw_fifo_delete(vp);
2429 goto exit;
2430 }
2431
2432 vxge_assert(fifo->channel.reserve_ptr);
2433 exit:
2434 return status;
2435 }
2436
2437 /*
2438 * __vxge_hw_fifo_abort - Returns the TxD
2439 * This function terminates the TxDs of fifo
2440 */
2441 enum vxge_hw_status __vxge_hw_fifo_abort(struct __vxge_hw_fifo *fifo)
2442 {
2443 void *txdlh;
2444
2445 for (;;) {
2446 vxge_hw_channel_dtr_try_complete(&fifo->channel, &txdlh);
2447
2448 if (txdlh == NULL)
2449 break;
2450
2451 vxge_hw_channel_dtr_complete(&fifo->channel);
2452
2453 if (fifo->txdl_term) {
2454 fifo->txdl_term(txdlh,
2455 VXGE_HW_TXDL_STATE_POSTED,
2456 fifo->channel.userdata);
2457 }
2458
2459 vxge_hw_channel_dtr_free(&fifo->channel, txdlh);
2460 }
2461
2462 return VXGE_HW_OK;
2463 }
2464
2465 /*
2466 * __vxge_hw_fifo_reset - Resets the fifo
2467 * This function resets the fifo during vpath reset operation
2468 */
2469 enum vxge_hw_status __vxge_hw_fifo_reset(struct __vxge_hw_fifo *fifo)
2470 {
2471 enum vxge_hw_status status = VXGE_HW_OK;
2472
2473 __vxge_hw_fifo_abort(fifo);
2474 status = __vxge_hw_channel_reset(&fifo->channel);
2475
2476 return status;
2477 }
2478
2479 /*
2480 * __vxge_hw_fifo_delete - Removes the FIFO
2481 * This function freeup the memory pool and removes the FIFO
2482 */
2483 enum vxge_hw_status __vxge_hw_fifo_delete(struct __vxge_hw_vpath_handle *vp)
2484 {
2485 struct __vxge_hw_fifo *fifo = vp->vpath->fifoh;
2486
2487 __vxge_hw_fifo_abort(fifo);
2488
2489 if (fifo->mempool)
2490 __vxge_hw_mempool_destroy(fifo->mempool);
2491
2492 vp->vpath->fifoh = NULL;
2493
2494 __vxge_hw_channel_free(&fifo->channel);
2495
2496 return VXGE_HW_OK;
2497 }
2498
2499 /*
2500 * __vxge_hw_vpath_pci_read - Read the content of given address
2501 * in pci config space.
2502 * Read from the vpath pci config space.
2503 */
2504 enum vxge_hw_status
2505 __vxge_hw_vpath_pci_read(struct __vxge_hw_virtualpath *vpath,
2506 u32 phy_func_0, u32 offset, u32 *val)
2507 {
2508 u64 val64;
2509 enum vxge_hw_status status = VXGE_HW_OK;
2510 struct vxge_hw_vpath_reg __iomem *vp_reg = vpath->vp_reg;
2511
2512 val64 = VXGE_HW_PCI_CONFIG_ACCESS_CFG1_ADDRESS(offset);
2513
2514 if (phy_func_0)
2515 val64 |= VXGE_HW_PCI_CONFIG_ACCESS_CFG1_SEL_FUNC0;
2516
2517 writeq(val64, &vp_reg->pci_config_access_cfg1);
2518 wmb();
2519 writeq(VXGE_HW_PCI_CONFIG_ACCESS_CFG2_REQ,
2520 &vp_reg->pci_config_access_cfg2);
2521 wmb();
2522
2523 status = __vxge_hw_device_register_poll(
2524 &vp_reg->pci_config_access_cfg2,
2525 VXGE_HW_INTR_MASK_ALL, VXGE_HW_DEF_DEVICE_POLL_MILLIS);
2526
2527 if (status != VXGE_HW_OK)
2528 goto exit;
2529
2530 val64 = readq(&vp_reg->pci_config_access_status);
2531
2532 if (val64 & VXGE_HW_PCI_CONFIG_ACCESS_STATUS_ACCESS_ERR) {
2533 status = VXGE_HW_FAIL;
2534 *val = 0;
2535 } else
2536 *val = (u32)vxge_bVALn(val64, 32, 32);
2537 exit:
2538 return status;
2539 }
2540
2541 /*
2542 * __vxge_hw_vpath_func_id_get - Get the function id of the vpath.
2543 * Returns the function number of the vpath.
2544 */
2545 u32
2546 __vxge_hw_vpath_func_id_get(u32 vp_id,
2547 struct vxge_hw_vpmgmt_reg __iomem *vpmgmt_reg)
2548 {
2549 u64 val64;
2550
2551 val64 = readq(&vpmgmt_reg->vpath_to_func_map_cfg1);
2552
2553 return
2554 (u32)VXGE_HW_VPATH_TO_FUNC_MAP_CFG1_GET_VPATH_TO_FUNC_MAP_CFG1(val64);
2555 }
2556
2557 /*
2558 * __vxge_hw_read_rts_ds - Program RTS steering critieria
2559 */
2560 static inline void
2561 __vxge_hw_read_rts_ds(struct vxge_hw_vpath_reg __iomem *vpath_reg,
2562 u64 dta_struct_sel)
2563 {
2564 writeq(0, &vpath_reg->rts_access_steer_ctrl);
2565 wmb();
2566 writeq(dta_struct_sel, &vpath_reg->rts_access_steer_data0);
2567 writeq(0, &vpath_reg->rts_access_steer_data1);
2568 wmb();
2569 }
2570
2571
2572 /*
2573 * __vxge_hw_vpath_card_info_get - Get the serial numbers,
2574 * part number and product description.
2575 */
2576 enum vxge_hw_status
2577 __vxge_hw_vpath_card_info_get(
2578 u32 vp_id,
2579 struct vxge_hw_vpath_reg __iomem *vpath_reg,
2580 struct vxge_hw_device_hw_info *hw_info)
2581 {
2582 u32 i, j;
2583 u64 val64;
2584 u64 data1 = 0ULL;
2585 u64 data2 = 0ULL;
2586 enum vxge_hw_status status = VXGE_HW_OK;
2587 u8 *serial_number = hw_info->serial_number;
2588 u8 *part_number = hw_info->part_number;
2589 u8 *product_desc = hw_info->product_desc;
2590
2591 __vxge_hw_read_rts_ds(vpath_reg,
2592 VXGE_HW_RTS_ACCESS_STEER_DATA0_MEMO_ITEM_SERIAL_NUMBER);
2593
2594 val64 = VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION(
2595 VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION_READ_MEMO_ENTRY) |
2596 VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL(
2597 VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_FW_MEMO) |
2598 VXGE_HW_RTS_ACCESS_STEER_CTRL_STROBE |
2599 VXGE_HW_RTS_ACCESS_STEER_CTRL_OFFSET(0);
2600
2601 status = __vxge_hw_pio_mem_write64(val64,
2602 &vpath_reg->rts_access_steer_ctrl,
2603 VXGE_HW_RTS_ACCESS_STEER_CTRL_STROBE,
2604 VXGE_HW_DEF_DEVICE_POLL_MILLIS);
2605
2606 if (status != VXGE_HW_OK)
2607 return status;
2608
2609 val64 = readq(&vpath_reg->rts_access_steer_ctrl);
2610
2611 if (val64 & VXGE_HW_RTS_ACCESS_STEER_CTRL_RMACJ_STATUS) {
2612 data1 = readq(&vpath_reg->rts_access_steer_data0);
2613 ((u64 *)serial_number)[0] = be64_to_cpu(data1);
2614
2615 data2 = readq(&vpath_reg->rts_access_steer_data1);
2616 ((u64 *)serial_number)[1] = be64_to_cpu(data2);
2617 status = VXGE_HW_OK;
2618 } else
2619 *serial_number = 0;
2620
2621 __vxge_hw_read_rts_ds(vpath_reg,
2622 VXGE_HW_RTS_ACCESS_STEER_DATA0_MEMO_ITEM_PART_NUMBER);
2623
2624 val64 = VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION(
2625 VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION_READ_MEMO_ENTRY) |
2626 VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL(
2627 VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_FW_MEMO) |
2628 VXGE_HW_RTS_ACCESS_STEER_CTRL_STROBE |
2629 VXGE_HW_RTS_ACCESS_STEER_CTRL_OFFSET(0);
2630
2631 status = __vxge_hw_pio_mem_write64(val64,
2632 &vpath_reg->rts_access_steer_ctrl,
2633 VXGE_HW_RTS_ACCESS_STEER_CTRL_STROBE,
2634 VXGE_HW_DEF_DEVICE_POLL_MILLIS);
2635
2636 if (status != VXGE_HW_OK)
2637 return status;
2638
2639 val64 = readq(&vpath_reg->rts_access_steer_ctrl);
2640
2641 if (val64 & VXGE_HW_RTS_ACCESS_STEER_CTRL_RMACJ_STATUS) {
2642
2643 data1 = readq(&vpath_reg->rts_access_steer_data0);
2644 ((u64 *)part_number)[0] = be64_to_cpu(data1);
2645
2646 data2 = readq(&vpath_reg->rts_access_steer_data1);
2647 ((u64 *)part_number)[1] = be64_to_cpu(data2);
2648
2649 status = VXGE_HW_OK;
2650
2651 } else
2652 *part_number = 0;
2653
2654 j = 0;
2655
2656 for (i = VXGE_HW_RTS_ACCESS_STEER_DATA0_MEMO_ITEM_DESC_0;
2657 i <= VXGE_HW_RTS_ACCESS_STEER_DATA0_MEMO_ITEM_DESC_3; i++) {
2658
2659 __vxge_hw_read_rts_ds(vpath_reg, i);
2660
2661 val64 = VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION(
2662 VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION_READ_MEMO_ENTRY) |
2663 VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL(
2664 VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_FW_MEMO) |
2665 VXGE_HW_RTS_ACCESS_STEER_CTRL_STROBE |
2666 VXGE_HW_RTS_ACCESS_STEER_CTRL_OFFSET(0);
2667
2668 status = __vxge_hw_pio_mem_write64(val64,
2669 &vpath_reg->rts_access_steer_ctrl,
2670 VXGE_HW_RTS_ACCESS_STEER_CTRL_STROBE,
2671 VXGE_HW_DEF_DEVICE_POLL_MILLIS);
2672
2673 if (status != VXGE_HW_OK)
2674 return status;
2675
2676 val64 = readq(&vpath_reg->rts_access_steer_ctrl);
2677
2678 if (val64 & VXGE_HW_RTS_ACCESS_STEER_CTRL_RMACJ_STATUS) {
2679
2680 data1 = readq(&vpath_reg->rts_access_steer_data0);
2681 ((u64 *)product_desc)[j++] = be64_to_cpu(data1);
2682
2683 data2 = readq(&vpath_reg->rts_access_steer_data1);
2684 ((u64 *)product_desc)[j++] = be64_to_cpu(data2);
2685
2686 status = VXGE_HW_OK;
2687 } else
2688 *product_desc = 0;
2689 }
2690
2691 return status;
2692 }
2693
2694 /*
2695 * __vxge_hw_vpath_fw_ver_get - Get the fw version
2696 * Returns FW Version
2697 */
2698 enum vxge_hw_status
2699 __vxge_hw_vpath_fw_ver_get(
2700 u32 vp_id,
2701 struct vxge_hw_vpath_reg __iomem *vpath_reg,
2702 struct vxge_hw_device_hw_info *hw_info)
2703 {
2704 u64 val64;
2705 u64 data1 = 0ULL;
2706 u64 data2 = 0ULL;
2707 struct vxge_hw_device_version *fw_version = &hw_info->fw_version;
2708 struct vxge_hw_device_date *fw_date = &hw_info->fw_date;
2709 struct vxge_hw_device_version *flash_version = &hw_info->flash_version;
2710 struct vxge_hw_device_date *flash_date = &hw_info->flash_date;
2711 enum vxge_hw_status status = VXGE_HW_OK;
2712
2713 val64 = VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION(
2714 VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION_READ_ENTRY) |
2715 VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL(
2716 VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_FW_MEMO) |
2717 VXGE_HW_RTS_ACCESS_STEER_CTRL_STROBE |
2718 VXGE_HW_RTS_ACCESS_STEER_CTRL_OFFSET(0);
2719
2720 status = __vxge_hw_pio_mem_write64(val64,
2721 &vpath_reg->rts_access_steer_ctrl,
2722 VXGE_HW_RTS_ACCESS_STEER_CTRL_STROBE,
2723 VXGE_HW_DEF_DEVICE_POLL_MILLIS);
2724
2725 if (status != VXGE_HW_OK)
2726 goto exit;
2727
2728 val64 = readq(&vpath_reg->rts_access_steer_ctrl);
2729
2730 if (val64 & VXGE_HW_RTS_ACCESS_STEER_CTRL_RMACJ_STATUS) {
2731
2732 data1 = readq(&vpath_reg->rts_access_steer_data0);
2733 data2 = readq(&vpath_reg->rts_access_steer_data1);
2734
2735 fw_date->day =
2736 (u32)VXGE_HW_RTS_ACCESS_STEER_DATA0_GET_FW_VER_DAY(
2737 data1);
2738 fw_date->month =
2739 (u32)VXGE_HW_RTS_ACCESS_STEER_DATA0_GET_FW_VER_MONTH(
2740 data1);
2741 fw_date->year =
2742 (u32)VXGE_HW_RTS_ACCESS_STEER_DATA0_GET_FW_VER_YEAR(
2743 data1);
2744
2745 snprintf(fw_date->date, VXGE_HW_FW_STRLEN, "%2.2d/%2.2d/%4.4d",
2746 fw_date->month, fw_date->day, fw_date->year);
2747
2748 fw_version->major =
2749 (u32)VXGE_HW_RTS_ACCESS_STEER_DATA0_GET_FW_VER_MAJOR(data1);
2750 fw_version->minor =
2751 (u32)VXGE_HW_RTS_ACCESS_STEER_DATA0_GET_FW_VER_MINOR(data1);
2752 fw_version->build =
2753 (u32)VXGE_HW_RTS_ACCESS_STEER_DATA0_GET_FW_VER_BUILD(data1);
2754
2755 snprintf(fw_version->version, VXGE_HW_FW_STRLEN, "%d.%d.%d",
2756 fw_version->major, fw_version->minor, fw_version->build);
2757
2758 flash_date->day =
2759 (u32)VXGE_HW_RTS_ACCESS_STEER_DATA1_GET_FLASH_VER_DAY(data2);
2760 flash_date->month =
2761 (u32)VXGE_HW_RTS_ACCESS_STEER_DATA1_GET_FLASH_VER_MONTH(data2);
2762 flash_date->year =
2763 (u32)VXGE_HW_RTS_ACCESS_STEER_DATA1_GET_FLASH_VER_YEAR(data2);
2764
2765 snprintf(flash_date->date, VXGE_HW_FW_STRLEN,
2766 "%2.2d/%2.2d/%4.4d",
2767 flash_date->month, flash_date->day, flash_date->year);
2768
2769 flash_version->major =
2770 (u32)VXGE_HW_RTS_ACCESS_STEER_DATA1_GET_FLASH_VER_MAJOR(data2);
2771 flash_version->minor =
2772 (u32)VXGE_HW_RTS_ACCESS_STEER_DATA1_GET_FLASH_VER_MINOR(data2);
2773 flash_version->build =
2774 (u32)VXGE_HW_RTS_ACCESS_STEER_DATA1_GET_FLASH_VER_BUILD(data2);
2775
2776 snprintf(flash_version->version, VXGE_HW_FW_STRLEN, "%d.%d.%d",
2777 flash_version->major, flash_version->minor,
2778 flash_version->build);
2779
2780 status = VXGE_HW_OK;
2781
2782 } else
2783 status = VXGE_HW_FAIL;
2784 exit:
2785 return status;
2786 }
2787
2788 /*
2789 * __vxge_hw_vpath_pci_func_mode_get - Get the pci mode
2790 * Returns pci function mode
2791 */
2792 u64
2793 __vxge_hw_vpath_pci_func_mode_get(
2794 u32 vp_id,
2795 struct vxge_hw_vpath_reg __iomem *vpath_reg)
2796 {
2797 u64 val64;
2798 u64 data1 = 0ULL;
2799 enum vxge_hw_status status = VXGE_HW_OK;
2800
2801 __vxge_hw_read_rts_ds(vpath_reg,
2802 VXGE_HW_RTS_ACCESS_STEER_DATA0_MEMO_ITEM_PCI_MODE);
2803
2804 val64 = VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION(
2805 VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION_READ_MEMO_ENTRY) |
2806 VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL(
2807 VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_FW_MEMO) |
2808 VXGE_HW_RTS_ACCESS_STEER_CTRL_STROBE |
2809 VXGE_HW_RTS_ACCESS_STEER_CTRL_OFFSET(0);
2810
2811 status = __vxge_hw_pio_mem_write64(val64,
2812 &vpath_reg->rts_access_steer_ctrl,
2813 VXGE_HW_RTS_ACCESS_STEER_CTRL_STROBE,
2814 VXGE_HW_DEF_DEVICE_POLL_MILLIS);
2815
2816 if (status != VXGE_HW_OK)
2817 goto exit;
2818
2819 val64 = readq(&vpath_reg->rts_access_steer_ctrl);
2820
2821 if (val64 & VXGE_HW_RTS_ACCESS_STEER_CTRL_RMACJ_STATUS) {
2822 data1 = readq(&vpath_reg->rts_access_steer_data0);
2823 status = VXGE_HW_OK;
2824 } else {
2825 data1 = 0;
2826 status = VXGE_HW_FAIL;
2827 }
2828 exit:
2829 return data1;
2830 }
2831
2832 /**
2833 * vxge_hw_device_flick_link_led - Flick (blink) link LED.
2834 * @hldev: HW device.
2835 * @on_off: TRUE if flickering to be on, FALSE to be off
2836 *
2837 * Flicker the link LED.
2838 */
2839 enum vxge_hw_status
2840 vxge_hw_device_flick_link_led(struct __vxge_hw_device *hldev,
2841 u64 on_off)
2842 {
2843 u64 val64;
2844 enum vxge_hw_status status = VXGE_HW_OK;
2845 struct vxge_hw_vpath_reg __iomem *vp_reg;
2846
2847 if (hldev == NULL) {
2848 status = VXGE_HW_ERR_INVALID_DEVICE;
2849 goto exit;
2850 }
2851
2852 vp_reg = hldev->vpath_reg[hldev->first_vp_id];
2853
2854 writeq(0, &vp_reg->rts_access_steer_ctrl);
2855 wmb();
2856 writeq(on_off, &vp_reg->rts_access_steer_data0);
2857 writeq(0, &vp_reg->rts_access_steer_data1);
2858 wmb();
2859
2860 val64 = VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION(
2861 VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION_LED_CONTROL) |
2862 VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL(
2863 VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_FW_MEMO) |
2864 VXGE_HW_RTS_ACCESS_STEER_CTRL_STROBE |
2865 VXGE_HW_RTS_ACCESS_STEER_CTRL_OFFSET(0);
2866
2867 status = __vxge_hw_pio_mem_write64(val64,
2868 &vp_reg->rts_access_steer_ctrl,
2869 VXGE_HW_RTS_ACCESS_STEER_CTRL_STROBE,
2870 VXGE_HW_DEF_DEVICE_POLL_MILLIS);
2871 exit:
2872 return status;
2873 }
2874
2875 /*
2876 * __vxge_hw_vpath_rts_table_get - Get the entries from RTS access tables
2877 */
2878 enum vxge_hw_status
2879 __vxge_hw_vpath_rts_table_get(
2880 struct __vxge_hw_vpath_handle *vp,
2881 u32 action, u32 rts_table, u32 offset, u64 *data1, u64 *data2)
2882 {
2883 u64 val64;
2884 struct __vxge_hw_virtualpath *vpath;
2885 struct vxge_hw_vpath_reg __iomem *vp_reg;
2886
2887 enum vxge_hw_status status = VXGE_HW_OK;
2888
2889 if (vp == NULL) {
2890 status = VXGE_HW_ERR_INVALID_HANDLE;
2891 goto exit;
2892 }
2893
2894 vpath = vp->vpath;
2895 vp_reg = vpath->vp_reg;
2896
2897 val64 = VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION(action) |
2898 VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL(rts_table) |
2899 VXGE_HW_RTS_ACCESS_STEER_CTRL_STROBE |
2900 VXGE_HW_RTS_ACCESS_STEER_CTRL_OFFSET(offset);
2901
2902 if ((rts_table ==
2903 VXGE_HW_RTS_ACS_STEER_CTRL_DATA_STRUCT_SEL_RTH_SOLO_IT) ||
2904 (rts_table ==
2905 VXGE_HW_RTS_ACS_STEER_CTRL_DATA_STRUCT_SEL_RTH_MULTI_IT) ||
2906 (rts_table ==
2907 VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_RTH_MASK) ||
2908 (rts_table ==
2909 VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_RTH_KEY)) {
2910 val64 = val64 | VXGE_HW_RTS_ACCESS_STEER_CTRL_TABLE_SEL;
2911 }
2912
2913 status = __vxge_hw_pio_mem_write64(val64,
2914 &vp_reg->rts_access_steer_ctrl,
2915 VXGE_HW_RTS_ACCESS_STEER_CTRL_STROBE,
2916 vpath->hldev->config.device_poll_millis);
2917
2918 if (status != VXGE_HW_OK)
2919 goto exit;
2920
2921 val64 = readq(&vp_reg->rts_access_steer_ctrl);
2922
2923 if (val64 & VXGE_HW_RTS_ACCESS_STEER_CTRL_RMACJ_STATUS) {
2924
2925 *data1 = readq(&vp_reg->rts_access_steer_data0);
2926
2927 if ((rts_table ==
2928 VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_DA) ||
2929 (rts_table ==
2930 VXGE_HW_RTS_ACS_STEER_CTRL_DATA_STRUCT_SEL_RTH_MULTI_IT)) {
2931 *data2 = readq(&vp_reg->rts_access_steer_data1);
2932 }
2933 status = VXGE_HW_OK;
2934 } else
2935 status = VXGE_HW_FAIL;
2936 exit:
2937 return status;
2938 }
2939
2940 /*
2941 * __vxge_hw_vpath_rts_table_set - Set the entries of RTS access tables
2942 */
2943 enum vxge_hw_status
2944 __vxge_hw_vpath_rts_table_set(
2945 struct __vxge_hw_vpath_handle *vp, u32 action, u32 rts_table,
2946 u32 offset, u64 data1, u64 data2)
2947 {
2948 u64 val64;
2949 struct __vxge_hw_virtualpath *vpath;
2950 enum vxge_hw_status status = VXGE_HW_OK;
2951 struct vxge_hw_vpath_reg __iomem *vp_reg;
2952
2953 if (vp == NULL) {
2954 status = VXGE_HW_ERR_INVALID_HANDLE;
2955 goto exit;
2956 }
2957
2958 vpath = vp->vpath;
2959 vp_reg = vpath->vp_reg;
2960
2961 writeq(data1, &vp_reg->rts_access_steer_data0);
2962 wmb();
2963
2964 if ((rts_table == VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_DA) ||
2965 (rts_table ==
2966 VXGE_HW_RTS_ACS_STEER_CTRL_DATA_STRUCT_SEL_RTH_MULTI_IT)) {
2967 writeq(data2, &vp_reg->rts_access_steer_data1);
2968 wmb();
2969 }
2970
2971 val64 = VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION(action) |
2972 VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL(rts_table) |
2973 VXGE_HW_RTS_ACCESS_STEER_CTRL_STROBE |
2974 VXGE_HW_RTS_ACCESS_STEER_CTRL_OFFSET(offset);
2975
2976 status = __vxge_hw_pio_mem_write64(val64,
2977 &vp_reg->rts_access_steer_ctrl,
2978 VXGE_HW_RTS_ACCESS_STEER_CTRL_STROBE,
2979 vpath->hldev->config.device_poll_millis);
2980
2981 if (status != VXGE_HW_OK)
2982 goto exit;
2983
2984 val64 = readq(&vp_reg->rts_access_steer_ctrl);
2985
2986 if (val64 & VXGE_HW_RTS_ACCESS_STEER_CTRL_RMACJ_STATUS)
2987 status = VXGE_HW_OK;
2988 else
2989 status = VXGE_HW_FAIL;
2990 exit:
2991 return status;
2992 }
2993
2994 /*
2995 * __vxge_hw_vpath_addr_get - Get the hw address entry for this vpath
2996 * from MAC address table.
2997 */
2998 enum vxge_hw_status
2999 __vxge_hw_vpath_addr_get(
3000 u32 vp_id, struct vxge_hw_vpath_reg __iomem *vpath_reg,
3001 u8 (macaddr)[ETH_ALEN], u8 (macaddr_mask)[ETH_ALEN])
3002 {
3003 u32 i;
3004 u64 val64;
3005 u64 data1 = 0ULL;
3006 u64 data2 = 0ULL;
3007 enum vxge_hw_status status = VXGE_HW_OK;
3008
3009 val64 = VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION(
3010 VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION_LIST_FIRST_ENTRY) |
3011 VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL(
3012 VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_DA) |
3013 VXGE_HW_RTS_ACCESS_STEER_CTRL_STROBE |
3014 VXGE_HW_RTS_ACCESS_STEER_CTRL_OFFSET(0);
3015
3016 status = __vxge_hw_pio_mem_write64(val64,
3017 &vpath_reg->rts_access_steer_ctrl,
3018 VXGE_HW_RTS_ACCESS_STEER_CTRL_STROBE,
3019 VXGE_HW_DEF_DEVICE_POLL_MILLIS);
3020
3021 if (status != VXGE_HW_OK)
3022 goto exit;
3023
3024 val64 = readq(&vpath_reg->rts_access_steer_ctrl);
3025
3026 if (val64 & VXGE_HW_RTS_ACCESS_STEER_CTRL_RMACJ_STATUS) {
3027
3028 data1 = readq(&vpath_reg->rts_access_steer_data0);
3029 data2 = readq(&vpath_reg->rts_access_steer_data1);
3030
3031 data1 = VXGE_HW_RTS_ACCESS_STEER_DATA0_GET_DA_MAC_ADDR(data1);
3032 data2 = VXGE_HW_RTS_ACCESS_STEER_DATA1_GET_DA_MAC_ADDR_MASK(
3033 data2);
3034
3035 for (i = ETH_ALEN; i > 0; i--) {
3036 macaddr[i-1] = (u8)(data1 & 0xFF);
3037 data1 >>= 8;
3038
3039 macaddr_mask[i-1] = (u8)(data2 & 0xFF);
3040 data2 >>= 8;
3041 }
3042 status = VXGE_HW_OK;
3043 } else
3044 status = VXGE_HW_FAIL;
3045 exit:
3046 return status;
3047 }
3048
3049 /*
3050 * vxge_hw_vpath_rts_rth_set - Set/configure RTS hashing.
3051 */
3052 enum vxge_hw_status vxge_hw_vpath_rts_rth_set(
3053 struct __vxge_hw_vpath_handle *vp,
3054 enum vxge_hw_rth_algoritms algorithm,
3055 struct vxge_hw_rth_hash_types *hash_type,
3056 u16 bucket_size)
3057 {
3058 u64 data0, data1;
3059 enum vxge_hw_status status = VXGE_HW_OK;
3060
3061 if (vp == NULL) {
3062 status = VXGE_HW_ERR_INVALID_HANDLE;
3063 goto exit;
3064 }
3065
3066 status = __vxge_hw_vpath_rts_table_get(vp,
3067 VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION_READ_ENTRY,
3068 VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_RTH_GEN_CFG,
3069 0, &data0, &data1);
3070
3071 data0 &= ~(VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_GEN_BUCKET_SIZE(0xf) |
3072 VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_GEN_ALG_SEL(0x3));
3073
3074 data0 |= VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_GEN_RTH_EN |
3075 VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_GEN_BUCKET_SIZE(bucket_size) |
3076 VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_GEN_ALG_SEL(algorithm);
3077
3078 if (hash_type->hash_type_tcpipv4_en)
3079 data0 |= VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_GEN_RTH_TCP_IPV4_EN;
3080
3081 if (hash_type->hash_type_ipv4_en)
3082 data0 |= VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_GEN_RTH_IPV4_EN;
3083
3084 if (hash_type->hash_type_tcpipv6_en)
3085 data0 |= VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_GEN_RTH_TCP_IPV6_EN;
3086
3087 if (hash_type->hash_type_ipv6_en)
3088 data0 |= VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_GEN_RTH_IPV6_EN;
3089
3090 if (hash_type->hash_type_tcpipv6ex_en)
3091 data0 |=
3092 VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_GEN_RTH_TCP_IPV6_EX_EN;
3093
3094 if (hash_type->hash_type_ipv6ex_en)
3095 data0 |= VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_GEN_RTH_IPV6_EX_EN;
3096
3097 if (VXGE_HW_RTS_ACCESS_STEER_DATA0_GET_RTH_GEN_ACTIVE_TABLE(data0))
3098 data0 &= ~VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_GEN_ACTIVE_TABLE;
3099 else
3100 data0 |= VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_GEN_ACTIVE_TABLE;
3101
3102 status = __vxge_hw_vpath_rts_table_set(vp,
3103 VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION_WRITE_ENTRY,
3104 VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_RTH_GEN_CFG,
3105 0, data0, 0);
3106 exit:
3107 return status;
3108 }
3109
3110 static void
3111 vxge_hw_rts_rth_data0_data1_get(u32 j, u64 *data0, u64 *data1,
3112 u16 flag, u8 *itable)
3113 {
3114 switch (flag) {
3115 case 1:
3116 *data0 = VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_ITEM0_BUCKET_NUM(j)|
3117 VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_ITEM0_ENTRY_EN |
3118 VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_ITEM0_BUCKET_DATA(
3119 itable[j]);
3120 case 2:
3121 *data0 |=
3122 VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_ITEM1_BUCKET_NUM(j)|
3123 VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_ITEM1_ENTRY_EN |
3124 VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_ITEM1_BUCKET_DATA(
3125 itable[j]);
3126 case 3:
3127 *data1 = VXGE_HW_RTS_ACCESS_STEER_DATA1_RTH_ITEM0_BUCKET_NUM(j)|
3128 VXGE_HW_RTS_ACCESS_STEER_DATA1_RTH_ITEM0_ENTRY_EN |
3129 VXGE_HW_RTS_ACCESS_STEER_DATA1_RTH_ITEM0_BUCKET_DATA(
3130 itable[j]);
3131 case 4:
3132 *data1 |=
3133 VXGE_HW_RTS_ACCESS_STEER_DATA1_RTH_ITEM1_BUCKET_NUM(j)|
3134 VXGE_HW_RTS_ACCESS_STEER_DATA1_RTH_ITEM1_ENTRY_EN |
3135 VXGE_HW_RTS_ACCESS_STEER_DATA1_RTH_ITEM1_BUCKET_DATA(
3136 itable[j]);
3137 default:
3138 return;
3139 }
3140 }
3141 /*
3142 * vxge_hw_vpath_rts_rth_itable_set - Set/configure indirection table (IT).
3143 */
3144 enum vxge_hw_status vxge_hw_vpath_rts_rth_itable_set(
3145 struct __vxge_hw_vpath_handle **vpath_handles,
3146 u32 vpath_count,
3147 u8 *mtable,
3148 u8 *itable,
3149 u32 itable_size)
3150 {
3151 u32 i, j, action, rts_table;
3152 u64 data0;
3153 u64 data1;
3154 u32 max_entries;
3155 enum vxge_hw_status status = VXGE_HW_OK;
3156 struct __vxge_hw_vpath_handle *vp = vpath_handles[0];
3157
3158 if (vp == NULL) {
3159 status = VXGE_HW_ERR_INVALID_HANDLE;
3160 goto exit;
3161 }
3162
3163 max_entries = (((u32)1) << itable_size);
3164
3165 if (vp->vpath->hldev->config.rth_it_type
3166 == VXGE_HW_RTH_IT_TYPE_SOLO_IT) {
3167 action = VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION_WRITE_ENTRY;
3168 rts_table =
3169 VXGE_HW_RTS_ACS_STEER_CTRL_DATA_STRUCT_SEL_RTH_SOLO_IT;
3170
3171 for (j = 0; j < max_entries; j++) {
3172
3173 data1 = 0;
3174
3175 data0 =
3176 VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_SOLO_IT_BUCKET_DATA(
3177 itable[j]);
3178
3179 status = __vxge_hw_vpath_rts_table_set(vpath_handles[0],
3180 action, rts_table, j, data0, data1);
3181
3182 if (status != VXGE_HW_OK)
3183 goto exit;
3184 }
3185
3186 for (j = 0; j < max_entries; j++) {
3187
3188 data1 = 0;
3189
3190 data0 =
3191 VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_SOLO_IT_ENTRY_EN |
3192 VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_SOLO_IT_BUCKET_DATA(
3193 itable[j]);
3194
3195 status = __vxge_hw_vpath_rts_table_set(
3196 vpath_handles[mtable[itable[j]]], action,
3197 rts_table, j, data0, data1);
3198
3199 if (status != VXGE_HW_OK)
3200 goto exit;
3201 }
3202 } else {
3203 action = VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION_WRITE_ENTRY;
3204 rts_table =
3205 VXGE_HW_RTS_ACS_STEER_CTRL_DATA_STRUCT_SEL_RTH_MULTI_IT;
3206 for (i = 0; i < vpath_count; i++) {
3207
3208 for (j = 0; j < max_entries;) {
3209
3210 data0 = 0;
3211 data1 = 0;
3212
3213 while (j < max_entries) {
3214 if (mtable[itable[j]] != i) {
3215 j++;
3216 continue;
3217 }
3218 vxge_hw_rts_rth_data0_data1_get(j,
3219 &data0, &data1, 1, itable);
3220 j++;
3221 break;
3222 }
3223
3224 while (j < max_entries) {
3225 if (mtable[itable[j]] != i) {
3226 j++;
3227 continue;
3228 }
3229 vxge_hw_rts_rth_data0_data1_get(j,
3230 &data0, &data1, 2, itable);
3231 j++;
3232 break;
3233 }
3234
3235 while (j < max_entries) {
3236 if (mtable[itable[j]] != i) {
3237 j++;
3238 continue;
3239 }
3240 vxge_hw_rts_rth_data0_data1_get(j,
3241 &data0, &data1, 3, itable);
3242 j++;
3243 break;
3244 }
3245
3246 while (j < max_entries) {
3247 if (mtable[itable[j]] != i) {
3248 j++;
3249 continue;
3250 }
3251 vxge_hw_rts_rth_data0_data1_get(j,
3252 &data0, &data1, 4, itable);
3253 j++;
3254 break;
3255 }
3256
3257 if (data0 != 0) {
3258 status = __vxge_hw_vpath_rts_table_set(
3259 vpath_handles[i],
3260 action, rts_table,
3261 0, data0, data1);
3262
3263 if (status != VXGE_HW_OK)
3264 goto exit;
3265 }
3266 }
3267 }
3268 }
3269 exit:
3270 return status;
3271 }
3272
3273 /**
3274 * vxge_hw_vpath_check_leak - Check for memory leak
3275 * @ringh: Handle to the ring object used for receive
3276 *
3277 * If PRC_RXD_DOORBELL_VPn.NEW_QW_CNT is larger or equal to
3278 * PRC_CFG6_VPn.RXD_SPAT then a leak has occurred.
3279 * Returns: VXGE_HW_FAIL, if leak has occurred.
3280 *
3281 */
3282 enum vxge_hw_status
3283 vxge_hw_vpath_check_leak(struct __vxge_hw_ring *ring)
3284 {
3285 enum vxge_hw_status status = VXGE_HW_OK;
3286 u64 rxd_new_count, rxd_spat;
3287
3288 if (ring == NULL)
3289 return status;
3290
3291 rxd_new_count = readl(&ring->vp_reg->prc_rxd_doorbell);
3292 rxd_spat = readq(&ring->vp_reg->prc_cfg6);
3293 rxd_spat = VXGE_HW_PRC_CFG6_RXD_SPAT(rxd_spat);
3294
3295 if (rxd_new_count >= rxd_spat)
3296 status = VXGE_HW_FAIL;
3297
3298 return status;
3299 }
3300
3301 /*
3302 * __vxge_hw_vpath_mgmt_read
3303 * This routine reads the vpath_mgmt registers
3304 */
3305 static enum vxge_hw_status
3306 __vxge_hw_vpath_mgmt_read(
3307 struct __vxge_hw_device *hldev,
3308 struct __vxge_hw_virtualpath *vpath)
3309 {
3310 u32 i, mtu = 0, max_pyld = 0;
3311 u64 val64;
3312 enum vxge_hw_status status = VXGE_HW_OK;
3313
3314 for (i = 0; i < VXGE_HW_MAC_MAX_MAC_PORT_ID; i++) {
3315
3316 val64 = readq(&vpath->vpmgmt_reg->
3317 rxmac_cfg0_port_vpmgmt_clone[i]);
3318 max_pyld =
3319 (u32)
3320 VXGE_HW_RXMAC_CFG0_PORT_VPMGMT_CLONE_GET_MAX_PYLD_LEN
3321 (val64);
3322 if (mtu < max_pyld)
3323 mtu = max_pyld;
3324 }
3325
3326 vpath->max_mtu = mtu + VXGE_HW_MAC_HEADER_MAX_SIZE;
3327
3328 val64 = readq(&vpath->vpmgmt_reg->xmac_vsport_choices_vp);
3329
3330 for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) {
3331 if (val64 & vxge_mBIT(i))
3332 vpath->vsport_number = i;
3333 }
3334
3335 val64 = readq(&vpath->vpmgmt_reg->xgmac_gen_status_vpmgmt_clone);
3336
3337 if (val64 & VXGE_HW_XGMAC_GEN_STATUS_VPMGMT_CLONE_XMACJ_NTWK_OK)
3338 VXGE_HW_DEVICE_LINK_STATE_SET(vpath->hldev, VXGE_HW_LINK_UP);
3339 else
3340 VXGE_HW_DEVICE_LINK_STATE_SET(vpath->hldev, VXGE_HW_LINK_DOWN);
3341
3342 return status;
3343 }
3344
3345 /*
3346 * __vxge_hw_vpath_reset_check - Check if resetting the vpath completed
3347 * This routine checks the vpath_rst_in_prog register to see if
3348 * adapter completed the reset process for the vpath
3349 */
3350 enum vxge_hw_status
3351 __vxge_hw_vpath_reset_check(struct __vxge_hw_virtualpath *vpath)
3352 {
3353 enum vxge_hw_status status;
3354
3355 status = __vxge_hw_device_register_poll(
3356 &vpath->hldev->common_reg->vpath_rst_in_prog,
3357 VXGE_HW_VPATH_RST_IN_PROG_VPATH_RST_IN_PROG(
3358 1 << (16 - vpath->vp_id)),
3359 vpath->hldev->config.device_poll_millis);
3360
3361 return status;
3362 }
3363
3364 /*
3365 * __vxge_hw_vpath_reset
3366 * This routine resets the vpath on the device
3367 */
3368 enum vxge_hw_status
3369 __vxge_hw_vpath_reset(struct __vxge_hw_device *hldev, u32 vp_id)
3370 {
3371 u64 val64;
3372 enum vxge_hw_status status = VXGE_HW_OK;
3373
3374 val64 = VXGE_HW_CMN_RSTHDLR_CFG0_SW_RESET_VPATH(1 << (16 - vp_id));
3375
3376 __vxge_hw_pio_mem_write32_upper((u32)vxge_bVALn(val64, 0, 32),
3377 &hldev->common_reg->cmn_rsthdlr_cfg0);
3378
3379 return status;
3380 }
3381
3382 /*
3383 * __vxge_hw_vpath_sw_reset
3384 * This routine resets the vpath structures
3385 */
3386 enum vxge_hw_status
3387 __vxge_hw_vpath_sw_reset(struct __vxge_hw_device *hldev, u32 vp_id)
3388 {
3389 enum vxge_hw_status status = VXGE_HW_OK;
3390 struct __vxge_hw_virtualpath *vpath;
3391
3392 vpath = (struct __vxge_hw_virtualpath *)&hldev->virtual_paths[vp_id];
3393
3394 if (vpath->ringh) {
3395 status = __vxge_hw_ring_reset(vpath->ringh);
3396 if (status != VXGE_HW_OK)
3397 goto exit;
3398 }
3399
3400 if (vpath->fifoh)
3401 status = __vxge_hw_fifo_reset(vpath->fifoh);
3402 exit:
3403 return status;
3404 }
3405
3406 /*
3407 * __vxge_hw_vpath_prc_configure
3408 * This routine configures the prc registers of virtual path using the config
3409 * passed
3410 */
3411 void
3412 __vxge_hw_vpath_prc_configure(struct __vxge_hw_device *hldev, u32 vp_id)
3413 {
3414 u64 val64;
3415 struct __vxge_hw_virtualpath *vpath;
3416 struct vxge_hw_vp_config *vp_config;
3417 struct vxge_hw_vpath_reg __iomem *vp_reg;
3418
3419 vpath = &hldev->virtual_paths[vp_id];
3420 vp_reg = vpath->vp_reg;
3421 vp_config = vpath->vp_config;
3422
3423 if (vp_config->ring.enable == VXGE_HW_RING_DISABLE)
3424 return;
3425
3426 val64 = readq(&vp_reg->prc_cfg1);
3427 val64 |= VXGE_HW_PRC_CFG1_RTI_TINT_DISABLE;
3428 writeq(val64, &vp_reg->prc_cfg1);
3429
3430 val64 = readq(&vpath->vp_reg->prc_cfg6);
3431 val64 |= VXGE_HW_PRC_CFG6_DOORBELL_MODE_EN;
3432 writeq(val64, &vpath->vp_reg->prc_cfg6);
3433
3434 val64 = readq(&vp_reg->prc_cfg7);
3435
3436 if (vpath->vp_config->ring.scatter_mode !=
3437 VXGE_HW_RING_SCATTER_MODE_USE_FLASH_DEFAULT) {
3438
3439 val64 &= ~VXGE_HW_PRC_CFG7_SCATTER_MODE(0x3);
3440
3441 switch (vpath->vp_config->ring.scatter_mode) {
3442 case VXGE_HW_RING_SCATTER_MODE_A:
3443 val64 |= VXGE_HW_PRC_CFG7_SCATTER_MODE(
3444 VXGE_HW_PRC_CFG7_SCATTER_MODE_A);
3445 break;
3446 case VXGE_HW_RING_SCATTER_MODE_B:
3447 val64 |= VXGE_HW_PRC_CFG7_SCATTER_MODE(
3448 VXGE_HW_PRC_CFG7_SCATTER_MODE_B);
3449 break;
3450 case VXGE_HW_RING_SCATTER_MODE_C:
3451 val64 |= VXGE_HW_PRC_CFG7_SCATTER_MODE(
3452 VXGE_HW_PRC_CFG7_SCATTER_MODE_C);
3453 break;
3454 }
3455 }
3456
3457 writeq(val64, &vp_reg->prc_cfg7);
3458
3459 writeq(VXGE_HW_PRC_CFG5_RXD0_ADD(
3460 __vxge_hw_ring_first_block_address_get(
3461 vpath->ringh) >> 3), &vp_reg->prc_cfg5);
3462
3463 val64 = readq(&vp_reg->prc_cfg4);
3464 val64 |= VXGE_HW_PRC_CFG4_IN_SVC;
3465 val64 &= ~VXGE_HW_PRC_CFG4_RING_MODE(0x3);
3466
3467 val64 |= VXGE_HW_PRC_CFG4_RING_MODE(
3468 VXGE_HW_PRC_CFG4_RING_MODE_ONE_BUFFER);
3469
3470 if (hldev->config.rth_en == VXGE_HW_RTH_DISABLE)
3471 val64 |= VXGE_HW_PRC_CFG4_RTH_DISABLE;
3472 else
3473 val64 &= ~VXGE_HW_PRC_CFG4_RTH_DISABLE;
3474
3475 writeq(val64, &vp_reg->prc_cfg4);
3476 }
3477
3478 /*
3479 * __vxge_hw_vpath_kdfc_configure
3480 * This routine configures the kdfc registers of virtual path using the
3481 * config passed
3482 */
3483 enum vxge_hw_status
3484 __vxge_hw_vpath_kdfc_configure(struct __vxge_hw_device *hldev, u32 vp_id)
3485 {
3486 u64 val64;
3487 u64 vpath_stride;
3488 enum vxge_hw_status status = VXGE_HW_OK;
3489 struct __vxge_hw_virtualpath *vpath;
3490 struct vxge_hw_vpath_reg __iomem *vp_reg;
3491
3492 vpath = &hldev->virtual_paths[vp_id];
3493 vp_reg = vpath->vp_reg;
3494 status = __vxge_hw_kdfc_swapper_set(hldev->legacy_reg, vp_reg);
3495
3496 if (status != VXGE_HW_OK)
3497 goto exit;
3498
3499 val64 = readq(&vp_reg->kdfc_drbl_triplet_total);
3500
3501 vpath->max_kdfc_db =
3502 (u32)VXGE_HW_KDFC_DRBL_TRIPLET_TOTAL_GET_KDFC_MAX_SIZE(
3503 val64+1)/2;
3504
3505 if (vpath->vp_config->fifo.enable == VXGE_HW_FIFO_ENABLE) {
3506
3507 vpath->max_nofl_db = vpath->max_kdfc_db;
3508
3509 if (vpath->max_nofl_db <
3510 ((vpath->vp_config->fifo.memblock_size /
3511 (vpath->vp_config->fifo.max_frags *
3512 sizeof(struct vxge_hw_fifo_txd))) *
3513 vpath->vp_config->fifo.fifo_blocks)) {
3514
3515 return VXGE_HW_BADCFG_FIFO_BLOCKS;
3516 }
3517 val64 = VXGE_HW_KDFC_FIFO_TRPL_PARTITION_LENGTH_0(
3518 (vpath->max_nofl_db*2)-1);
3519 }
3520
3521 writeq(val64, &vp_reg->kdfc_fifo_trpl_partition);
3522
3523 writeq(VXGE_HW_KDFC_FIFO_TRPL_CTRL_TRIPLET_ENABLE,
3524 &vp_reg->kdfc_fifo_trpl_ctrl);
3525
3526 val64 = readq(&vp_reg->kdfc_trpl_fifo_0_ctrl);
3527
3528 val64 &= ~(VXGE_HW_KDFC_TRPL_FIFO_0_CTRL_MODE(0x3) |
3529 VXGE_HW_KDFC_TRPL_FIFO_0_CTRL_SELECT(0xFF));
3530
3531 val64 |= VXGE_HW_KDFC_TRPL_FIFO_0_CTRL_MODE(
3532 VXGE_HW_KDFC_TRPL_FIFO_0_CTRL_MODE_NON_OFFLOAD_ONLY) |
3533 #ifndef __BIG_ENDIAN
3534 VXGE_HW_KDFC_TRPL_FIFO_0_CTRL_SWAP_EN |
3535 #endif
3536 VXGE_HW_KDFC_TRPL_FIFO_0_CTRL_SELECT(0);
3537
3538 writeq(val64, &vp_reg->kdfc_trpl_fifo_0_ctrl);
3539 writeq((u64)0, &vp_reg->kdfc_trpl_fifo_0_wb_address);
3540 wmb();
3541 vpath_stride = readq(&hldev->toc_reg->toc_kdfc_vpath_stride);
3542
3543 vpath->nofl_db =
3544 (struct __vxge_hw_non_offload_db_wrapper __iomem *)
3545 (hldev->kdfc + (vp_id *
3546 VXGE_HW_TOC_KDFC_VPATH_STRIDE_GET_TOC_KDFC_VPATH_STRIDE(
3547 vpath_stride)));
3548 exit:
3549 return status;
3550 }
3551
3552 /*
3553 * __vxge_hw_vpath_mac_configure
3554 * This routine configures the mac of virtual path using the config passed
3555 */
3556 enum vxge_hw_status
3557 __vxge_hw_vpath_mac_configure(struct __vxge_hw_device *hldev, u32 vp_id)
3558 {
3559 u64 val64;
3560 enum vxge_hw_status status = VXGE_HW_OK;
3561 struct __vxge_hw_virtualpath *vpath;
3562 struct vxge_hw_vp_config *vp_config;
3563 struct vxge_hw_vpath_reg __iomem *vp_reg;
3564
3565 vpath = &hldev->virtual_paths[vp_id];
3566 vp_reg = vpath->vp_reg;
3567 vp_config = vpath->vp_config;
3568
3569 writeq(VXGE_HW_XMAC_VSPORT_CHOICE_VSPORT_NUMBER(
3570 vpath->vsport_number), &vp_reg->xmac_vsport_choice);
3571
3572 if (vp_config->ring.enable == VXGE_HW_RING_ENABLE) {
3573
3574 val64 = readq(&vp_reg->xmac_rpa_vcfg);
3575
3576 if (vp_config->rpa_strip_vlan_tag !=
3577 VXGE_HW_VPATH_RPA_STRIP_VLAN_TAG_USE_FLASH_DEFAULT) {
3578 if (vp_config->rpa_strip_vlan_tag)
3579 val64 |= VXGE_HW_XMAC_RPA_VCFG_STRIP_VLAN_TAG;
3580 else
3581 val64 &= ~VXGE_HW_XMAC_RPA_VCFG_STRIP_VLAN_TAG;
3582 }
3583
3584 writeq(val64, &vp_reg->xmac_rpa_vcfg);
3585 val64 = readq(&vp_reg->rxmac_vcfg0);
3586
3587 if (vp_config->mtu !=
3588 VXGE_HW_VPATH_USE_FLASH_DEFAULT_INITIAL_MTU) {
3589 val64 &= ~VXGE_HW_RXMAC_VCFG0_RTS_MAX_FRM_LEN(0x3fff);
3590 if ((vp_config->mtu +
3591 VXGE_HW_MAC_HEADER_MAX_SIZE) < vpath->max_mtu)
3592 val64 |= VXGE_HW_RXMAC_VCFG0_RTS_MAX_FRM_LEN(
3593 vp_config->mtu +
3594 VXGE_HW_MAC_HEADER_MAX_SIZE);
3595 else
3596 val64 |= VXGE_HW_RXMAC_VCFG0_RTS_MAX_FRM_LEN(
3597 vpath->max_mtu);
3598 }
3599
3600 writeq(val64, &vp_reg->rxmac_vcfg0);
3601
3602 val64 = readq(&vp_reg->rxmac_vcfg1);
3603
3604 val64 &= ~(VXGE_HW_RXMAC_VCFG1_RTS_RTH_MULTI_IT_BD_MODE(0x3) |
3605 VXGE_HW_RXMAC_VCFG1_RTS_RTH_MULTI_IT_EN_MODE);
3606
3607 if (hldev->config.rth_it_type ==
3608 VXGE_HW_RTH_IT_TYPE_MULTI_IT) {
3609 val64 |= VXGE_HW_RXMAC_VCFG1_RTS_RTH_MULTI_IT_BD_MODE(
3610 0x2) |
3611 VXGE_HW_RXMAC_VCFG1_RTS_RTH_MULTI_IT_EN_MODE;
3612 }
3613
3614 writeq(val64, &vp_reg->rxmac_vcfg1);
3615 }
3616 return status;
3617 }
3618
3619 /*
3620 * __vxge_hw_vpath_tim_configure
3621 * This routine configures the tim registers of virtual path using the config
3622 * passed
3623 */
3624 enum vxge_hw_status
3625 __vxge_hw_vpath_tim_configure(struct __vxge_hw_device *hldev, u32 vp_id)
3626 {
3627 u64 val64;
3628 enum vxge_hw_status status = VXGE_HW_OK;
3629 struct __vxge_hw_virtualpath *vpath;
3630 struct vxge_hw_vpath_reg __iomem *vp_reg;
3631 struct vxge_hw_vp_config *config;
3632
3633 vpath = &hldev->virtual_paths[vp_id];
3634 vp_reg = vpath->vp_reg;
3635 config = vpath->vp_config;
3636
3637 writeq((u64)0, &vp_reg->tim_dest_addr);
3638 writeq((u64)0, &vp_reg->tim_vpath_map);
3639 writeq((u64)0, &vp_reg->tim_bitmap);
3640 writeq((u64)0, &vp_reg->tim_remap);
3641
3642 if (config->ring.enable == VXGE_HW_RING_ENABLE)
3643 writeq(VXGE_HW_TIM_RING_ASSN_INT_NUM(
3644 (vp_id * VXGE_HW_MAX_INTR_PER_VP) +
3645 VXGE_HW_VPATH_INTR_RX), &vp_reg->tim_ring_assn);
3646
3647 val64 = readq(&vp_reg->tim_pci_cfg);
3648 val64 |= VXGE_HW_TIM_PCI_CFG_ADD_PAD;
3649 writeq(val64, &vp_reg->tim_pci_cfg);
3650
3651 if (config->fifo.enable == VXGE_HW_FIFO_ENABLE) {
3652
3653 val64 = readq(&vp_reg->tim_cfg1_int_num[VXGE_HW_VPATH_INTR_TX]);
3654
3655 if (config->tti.btimer_val != VXGE_HW_USE_FLASH_DEFAULT) {
3656 val64 &= ~VXGE_HW_TIM_CFG1_INT_NUM_BTIMER_VAL(
3657 0x3ffffff);
3658 val64 |= VXGE_HW_TIM_CFG1_INT_NUM_BTIMER_VAL(
3659 config->tti.btimer_val);
3660 }
3661
3662 val64 &= ~VXGE_HW_TIM_CFG1_INT_NUM_BITMP_EN;
3663
3664 if (config->tti.timer_ac_en != VXGE_HW_USE_FLASH_DEFAULT) {
3665 if (config->tti.timer_ac_en)
3666 val64 |= VXGE_HW_TIM_CFG1_INT_NUM_TIMER_AC;
3667 else
3668 val64 &= ~VXGE_HW_TIM_CFG1_INT_NUM_TIMER_AC;
3669 }
3670
3671 if (config->tti.timer_ci_en != VXGE_HW_USE_FLASH_DEFAULT) {
3672 if (config->tti.timer_ci_en)
3673 val64 |= VXGE_HW_TIM_CFG1_INT_NUM_TIMER_CI;
3674 else
3675 val64 &= ~VXGE_HW_TIM_CFG1_INT_NUM_TIMER_CI;
3676 }
3677
3678 if (config->tti.urange_a != VXGE_HW_USE_FLASH_DEFAULT) {
3679 val64 &= ~VXGE_HW_TIM_CFG1_INT_NUM_URNG_A(0x3f);
3680 val64 |= VXGE_HW_TIM_CFG1_INT_NUM_URNG_A(
3681 config->tti.urange_a);
3682 }
3683
3684 if (config->tti.urange_b != VXGE_HW_USE_FLASH_DEFAULT) {
3685 val64 &= ~VXGE_HW_TIM_CFG1_INT_NUM_URNG_B(0x3f);
3686 val64 |= VXGE_HW_TIM_CFG1_INT_NUM_URNG_B(
3687 config->tti.urange_b);
3688 }
3689
3690 if (config->tti.urange_c != VXGE_HW_USE_FLASH_DEFAULT) {
3691 val64 &= ~VXGE_HW_TIM_CFG1_INT_NUM_URNG_C(0x3f);
3692 val64 |= VXGE_HW_TIM_CFG1_INT_NUM_URNG_C(
3693 config->tti.urange_c);
3694 }
3695
3696 writeq(val64, &vp_reg->tim_cfg1_int_num[VXGE_HW_VPATH_INTR_TX]);
3697 val64 = readq(&vp_reg->tim_cfg2_int_num[VXGE_HW_VPATH_INTR_TX]);
3698
3699 if (config->tti.uec_a != VXGE_HW_USE_FLASH_DEFAULT) {
3700 val64 &= ~VXGE_HW_TIM_CFG2_INT_NUM_UEC_A(0xffff);
3701 val64 |= VXGE_HW_TIM_CFG2_INT_NUM_UEC_A(
3702 config->tti.uec_a);
3703 }
3704
3705 if (config->tti.uec_b != VXGE_HW_USE_FLASH_DEFAULT) {
3706 val64 &= ~VXGE_HW_TIM_CFG2_INT_NUM_UEC_B(0xffff);
3707 val64 |= VXGE_HW_TIM_CFG2_INT_NUM_UEC_B(
3708 config->tti.uec_b);
3709 }
3710
3711 if (config->tti.uec_c != VXGE_HW_USE_FLASH_DEFAULT) {
3712 val64 &= ~VXGE_HW_TIM_CFG2_INT_NUM_UEC_C(0xffff);
3713 val64 |= VXGE_HW_TIM_CFG2_INT_NUM_UEC_C(
3714 config->tti.uec_c);
3715 }
3716
3717 if (config->tti.uec_d != VXGE_HW_USE_FLASH_DEFAULT) {
3718 val64 &= ~VXGE_HW_TIM_CFG2_INT_NUM_UEC_D(0xffff);
3719 val64 |= VXGE_HW_TIM_CFG2_INT_NUM_UEC_D(
3720 config->tti.uec_d);
3721 }
3722
3723 writeq(val64, &vp_reg->tim_cfg2_int_num[VXGE_HW_VPATH_INTR_TX]);
3724 val64 = readq(&vp_reg->tim_cfg3_int_num[VXGE_HW_VPATH_INTR_TX]);
3725
3726 if (config->tti.timer_ri_en != VXGE_HW_USE_FLASH_DEFAULT) {
3727 if (config->tti.timer_ri_en)
3728 val64 |= VXGE_HW_TIM_CFG3_INT_NUM_TIMER_RI;
3729 else
3730 val64 &= ~VXGE_HW_TIM_CFG3_INT_NUM_TIMER_RI;
3731 }
3732
3733 if (config->tti.rtimer_val != VXGE_HW_USE_FLASH_DEFAULT) {
3734 val64 &= ~VXGE_HW_TIM_CFG3_INT_NUM_RTIMER_VAL(
3735 0x3ffffff);
3736 val64 |= VXGE_HW_TIM_CFG3_INT_NUM_RTIMER_VAL(
3737 config->tti.rtimer_val);
3738 }
3739
3740 if (config->tti.util_sel != VXGE_HW_USE_FLASH_DEFAULT) {
3741 val64 &= ~VXGE_HW_TIM_CFG3_INT_NUM_UTIL_SEL(0x3f);
3742 val64 |= VXGE_HW_TIM_CFG3_INT_NUM_UTIL_SEL(
3743 config->tti.util_sel);
3744 }
3745
3746 if (config->tti.ltimer_val != VXGE_HW_USE_FLASH_DEFAULT) {
3747 val64 &= ~VXGE_HW_TIM_CFG3_INT_NUM_LTIMER_VAL(
3748 0x3ffffff);
3749 val64 |= VXGE_HW_TIM_CFG3_INT_NUM_LTIMER_VAL(
3750 config->tti.ltimer_val);
3751 }
3752
3753 writeq(val64, &vp_reg->tim_cfg3_int_num[VXGE_HW_VPATH_INTR_TX]);
3754 }
3755
3756 if (config->ring.enable == VXGE_HW_RING_ENABLE) {
3757
3758 val64 = readq(&vp_reg->tim_cfg1_int_num[VXGE_HW_VPATH_INTR_RX]);
3759
3760 if (config->rti.btimer_val != VXGE_HW_USE_FLASH_DEFAULT) {
3761 val64 &= ~VXGE_HW_TIM_CFG1_INT_NUM_BTIMER_VAL(
3762 0x3ffffff);
3763 val64 |= VXGE_HW_TIM_CFG1_INT_NUM_BTIMER_VAL(
3764 config->rti.btimer_val);
3765 }
3766
3767 val64 &= ~VXGE_HW_TIM_CFG1_INT_NUM_BITMP_EN;
3768
3769 if (config->rti.timer_ac_en != VXGE_HW_USE_FLASH_DEFAULT) {
3770 if (config->rti.timer_ac_en)
3771 val64 |= VXGE_HW_TIM_CFG1_INT_NUM_TIMER_AC;
3772 else
3773 val64 &= ~VXGE_HW_TIM_CFG1_INT_NUM_TIMER_AC;
3774 }
3775
3776 if (config->rti.timer_ci_en != VXGE_HW_USE_FLASH_DEFAULT) {
3777 if (config->rti.timer_ci_en)
3778 val64 |= VXGE_HW_TIM_CFG1_INT_NUM_TIMER_CI;
3779 else
3780 val64 &= ~VXGE_HW_TIM_CFG1_INT_NUM_TIMER_CI;
3781 }
3782
3783 if (config->rti.urange_a != VXGE_HW_USE_FLASH_DEFAULT) {
3784 val64 &= ~VXGE_HW_TIM_CFG1_INT_NUM_URNG_A(0x3f);
3785 val64 |= VXGE_HW_TIM_CFG1_INT_NUM_URNG_A(
3786 config->rti.urange_a);
3787 }
3788
3789 if (config->rti.urange_b != VXGE_HW_USE_FLASH_DEFAULT) {
3790 val64 &= ~VXGE_HW_TIM_CFG1_INT_NUM_URNG_B(0x3f);
3791 val64 |= VXGE_HW_TIM_CFG1_INT_NUM_URNG_B(
3792 config->rti.urange_b);
3793 }
3794
3795 if (config->rti.urange_c != VXGE_HW_USE_FLASH_DEFAULT) {
3796 val64 &= ~VXGE_HW_TIM_CFG1_INT_NUM_URNG_C(0x3f);
3797 val64 |= VXGE_HW_TIM_CFG1_INT_NUM_URNG_C(
3798 config->rti.urange_c);
3799 }
3800
3801 writeq(val64, &vp_reg->tim_cfg1_int_num[VXGE_HW_VPATH_INTR_RX]);
3802 val64 = readq(&vp_reg->tim_cfg2_int_num[VXGE_HW_VPATH_INTR_RX]);
3803
3804 if (config->rti.uec_a != VXGE_HW_USE_FLASH_DEFAULT) {
3805 val64 &= ~VXGE_HW_TIM_CFG2_INT_NUM_UEC_A(0xffff);
3806 val64 |= VXGE_HW_TIM_CFG2_INT_NUM_UEC_A(
3807 config->rti.uec_a);
3808 }
3809
3810 if (config->rti.uec_b != VXGE_HW_USE_FLASH_DEFAULT) {
3811 val64 &= ~VXGE_HW_TIM_CFG2_INT_NUM_UEC_B(0xffff);
3812 val64 |= VXGE_HW_TIM_CFG2_INT_NUM_UEC_B(
3813 config->rti.uec_b);
3814 }
3815
3816 if (config->rti.uec_c != VXGE_HW_USE_FLASH_DEFAULT) {
3817 val64 &= ~VXGE_HW_TIM_CFG2_INT_NUM_UEC_C(0xffff);
3818 val64 |= VXGE_HW_TIM_CFG2_INT_NUM_UEC_C(
3819 config->rti.uec_c);
3820 }
3821
3822 if (config->rti.uec_d != VXGE_HW_USE_FLASH_DEFAULT) {
3823 val64 &= ~VXGE_HW_TIM_CFG2_INT_NUM_UEC_D(0xffff);
3824 val64 |= VXGE_HW_TIM_CFG2_INT_NUM_UEC_D(
3825 config->rti.uec_d);
3826 }
3827
3828 writeq(val64, &vp_reg->tim_cfg2_int_num[VXGE_HW_VPATH_INTR_RX]);
3829 val64 = readq(&vp_reg->tim_cfg3_int_num[VXGE_HW_VPATH_INTR_RX]);
3830
3831 if (config->rti.timer_ri_en != VXGE_HW_USE_FLASH_DEFAULT) {
3832 if (config->rti.timer_ri_en)
3833 val64 |= VXGE_HW_TIM_CFG3_INT_NUM_TIMER_RI;
3834 else
3835 val64 &= ~VXGE_HW_TIM_CFG3_INT_NUM_TIMER_RI;
3836 }
3837
3838 if (config->rti.rtimer_val != VXGE_HW_USE_FLASH_DEFAULT) {
3839 val64 &= ~VXGE_HW_TIM_CFG3_INT_NUM_RTIMER_VAL(
3840 0x3ffffff);
3841 val64 |= VXGE_HW_TIM_CFG3_INT_NUM_RTIMER_VAL(
3842 config->rti.rtimer_val);
3843 }
3844
3845 if (config->rti.util_sel != VXGE_HW_USE_FLASH_DEFAULT) {
3846 val64 &= ~VXGE_HW_TIM_CFG3_INT_NUM_UTIL_SEL(0x3f);
3847 val64 |= VXGE_HW_TIM_CFG3_INT_NUM_UTIL_SEL(
3848 config->rti.util_sel);
3849 }
3850
3851 if (config->rti.ltimer_val != VXGE_HW_USE_FLASH_DEFAULT) {
3852 val64 &= ~VXGE_HW_TIM_CFG3_INT_NUM_LTIMER_VAL(
3853 0x3ffffff);
3854 val64 |= VXGE_HW_TIM_CFG3_INT_NUM_LTIMER_VAL(
3855 config->rti.ltimer_val);
3856 }
3857
3858 writeq(val64, &vp_reg->tim_cfg3_int_num[VXGE_HW_VPATH_INTR_RX]);
3859 }
3860
3861 val64 = 0;
3862 writeq(val64, &vp_reg->tim_cfg1_int_num[VXGE_HW_VPATH_INTR_EINTA]);
3863 writeq(val64, &vp_reg->tim_cfg2_int_num[VXGE_HW_VPATH_INTR_EINTA]);
3864 writeq(val64, &vp_reg->tim_cfg3_int_num[VXGE_HW_VPATH_INTR_EINTA]);
3865 writeq(val64, &vp_reg->tim_cfg1_int_num[VXGE_HW_VPATH_INTR_BMAP]);
3866 writeq(val64, &vp_reg->tim_cfg2_int_num[VXGE_HW_VPATH_INTR_BMAP]);
3867 writeq(val64, &vp_reg->tim_cfg3_int_num[VXGE_HW_VPATH_INTR_BMAP]);
3868
3869 return status;
3870 }
3871
3872 void
3873 vxge_hw_vpath_tti_ci_set(struct __vxge_hw_device *hldev, u32 vp_id)
3874 {
3875 struct __vxge_hw_virtualpath *vpath;
3876 struct vxge_hw_vpath_reg __iomem *vp_reg;
3877 struct vxge_hw_vp_config *config;
3878 u64 val64;
3879
3880 vpath = &hldev->virtual_paths[vp_id];
3881 vp_reg = vpath->vp_reg;
3882 config = vpath->vp_config;
3883
3884 if (config->fifo.enable == VXGE_HW_FIFO_ENABLE) {
3885 val64 = readq(&vp_reg->tim_cfg1_int_num[VXGE_HW_VPATH_INTR_TX]);
3886
3887 if (config->tti.timer_ci_en != VXGE_HW_TIM_TIMER_CI_ENABLE) {
3888 config->tti.timer_ci_en = VXGE_HW_TIM_TIMER_CI_ENABLE;
3889 val64 |= VXGE_HW_TIM_CFG1_INT_NUM_TIMER_CI;
3890 writeq(val64,
3891 &vp_reg->tim_cfg1_int_num[VXGE_HW_VPATH_INTR_TX]);
3892 }
3893 }
3894 }
3895 /*
3896 * __vxge_hw_vpath_initialize
3897 * This routine is the final phase of init which initializes the
3898 * registers of the vpath using the configuration passed.
3899 */
3900 enum vxge_hw_status
3901 __vxge_hw_vpath_initialize(struct __vxge_hw_device *hldev, u32 vp_id)
3902 {
3903 u64 val64;
3904 u32 val32;
3905 enum vxge_hw_status status = VXGE_HW_OK;
3906 struct __vxge_hw_virtualpath *vpath;
3907 struct vxge_hw_vpath_reg __iomem *vp_reg;
3908
3909 vpath = &hldev->virtual_paths[vp_id];
3910
3911 if (!(hldev->vpath_assignments & vxge_mBIT(vp_id))) {
3912 status = VXGE_HW_ERR_VPATH_NOT_AVAILABLE;
3913 goto exit;
3914 }
3915 vp_reg = vpath->vp_reg;
3916
3917 status = __vxge_hw_vpath_swapper_set(vpath->vp_reg);
3918
3919 if (status != VXGE_HW_OK)
3920 goto exit;
3921
3922 status = __vxge_hw_vpath_mac_configure(hldev, vp_id);
3923
3924 if (status != VXGE_HW_OK)
3925 goto exit;
3926
3927 status = __vxge_hw_vpath_kdfc_configure(hldev, vp_id);
3928
3929 if (status != VXGE_HW_OK)
3930 goto exit;
3931
3932 status = __vxge_hw_vpath_tim_configure(hldev, vp_id);
3933
3934 if (status != VXGE_HW_OK)
3935 goto exit;
3936
3937 val64 = readq(&vp_reg->rtdma_rd_optimization_ctrl);
3938
3939 /* Get MRRS value from device control */
3940 status = __vxge_hw_vpath_pci_read(vpath, 1, 0x78, &val32);
3941
3942 if (status == VXGE_HW_OK) {
3943 val32 = (val32 & VXGE_HW_PCI_EXP_DEVCTL_READRQ) >> 12;
3944 val64 &=
3945 ~(VXGE_HW_RTDMA_RD_OPTIMIZATION_CTRL_FB_FILL_THRESH(7));
3946 val64 |=
3947 VXGE_HW_RTDMA_RD_OPTIMIZATION_CTRL_FB_FILL_THRESH(val32);
3948
3949 val64 |= VXGE_HW_RTDMA_RD_OPTIMIZATION_CTRL_FB_WAIT_FOR_SPACE;
3950 }
3951
3952 val64 &= ~(VXGE_HW_RTDMA_RD_OPTIMIZATION_CTRL_FB_ADDR_BDRY(7));
3953 val64 |=
3954 VXGE_HW_RTDMA_RD_OPTIMIZATION_CTRL_FB_ADDR_BDRY(
3955 VXGE_HW_MAX_PAYLOAD_SIZE_512);
3956
3957 val64 |= VXGE_HW_RTDMA_RD_OPTIMIZATION_CTRL_FB_ADDR_BDRY_EN;
3958 writeq(val64, &vp_reg->rtdma_rd_optimization_ctrl);
3959
3960 exit:
3961 return status;
3962 }
3963
3964 /*
3965 * __vxge_hw_vp_initialize - Initialize Virtual Path structure
3966 * This routine is the initial phase of init which resets the vpath and
3967 * initializes the software support structures.
3968 */
3969 enum vxge_hw_status
3970 __vxge_hw_vp_initialize(struct __vxge_hw_device *hldev, u32 vp_id,
3971 struct vxge_hw_vp_config *config)
3972 {
3973 struct __vxge_hw_virtualpath *vpath;
3974 enum vxge_hw_status status = VXGE_HW_OK;
3975
3976 if (!(hldev->vpath_assignments & vxge_mBIT(vp_id))) {
3977 status = VXGE_HW_ERR_VPATH_NOT_AVAILABLE;
3978 goto exit;
3979 }
3980
3981 vpath = &hldev->virtual_paths[vp_id];
3982
3983 vpath->vp_id = vp_id;
3984 vpath->vp_open = VXGE_HW_VP_OPEN;
3985 vpath->hldev = hldev;
3986 vpath->vp_config = config;
3987 vpath->vp_reg = hldev->vpath_reg[vp_id];
3988 vpath->vpmgmt_reg = hldev->vpmgmt_reg[vp_id];
3989
3990 __vxge_hw_vpath_reset(hldev, vp_id);
3991
3992 status = __vxge_hw_vpath_reset_check(vpath);
3993
3994 if (status != VXGE_HW_OK) {
3995 memset(vpath, 0, sizeof(struct __vxge_hw_virtualpath));
3996 goto exit;
3997 }
3998
3999 status = __vxge_hw_vpath_mgmt_read(hldev, vpath);
4000
4001 if (status != VXGE_HW_OK) {
4002 memset(vpath, 0, sizeof(struct __vxge_hw_virtualpath));
4003 goto exit;
4004 }
4005
4006 INIT_LIST_HEAD(&vpath->vpath_handles);
4007
4008 vpath->sw_stats = &hldev->stats.sw_dev_info_stats.vpath_info[vp_id];
4009
4010 VXGE_HW_DEVICE_TIM_INT_MASK_SET(hldev->tim_int_mask0,
4011 hldev->tim_int_mask1, vp_id);
4012
4013 status = __vxge_hw_vpath_initialize(hldev, vp_id);
4014
4015 if (status != VXGE_HW_OK)
4016 __vxge_hw_vp_terminate(hldev, vp_id);
4017 exit:
4018 return status;
4019 }
4020
4021 /*
4022 * __vxge_hw_vp_terminate - Terminate Virtual Path structure
4023 * This routine closes all channels it opened and freeup memory
4024 */
4025 void
4026 __vxge_hw_vp_terminate(struct __vxge_hw_device *hldev, u32 vp_id)
4027 {
4028 struct __vxge_hw_virtualpath *vpath;
4029
4030 vpath = &hldev->virtual_paths[vp_id];
4031
4032 if (vpath->vp_open == VXGE_HW_VP_NOT_OPEN)
4033 goto exit;
4034
4035 VXGE_HW_DEVICE_TIM_INT_MASK_RESET(vpath->hldev->tim_int_mask0,
4036 vpath->hldev->tim_int_mask1, vpath->vp_id);
4037 hldev->stats.hw_dev_info_stats.vpath_info[vpath->vp_id] = NULL;
4038
4039 memset(vpath, 0, sizeof(struct __vxge_hw_virtualpath));
4040 exit:
4041 return;
4042 }
4043
4044 /*
4045 * vxge_hw_vpath_mtu_set - Set MTU.
4046 * Set new MTU value. Example, to use jumbo frames:
4047 * vxge_hw_vpath_mtu_set(my_device, 9600);
4048 */
4049 enum vxge_hw_status
4050 vxge_hw_vpath_mtu_set(struct __vxge_hw_vpath_handle *vp, u32 new_mtu)
4051 {
4052 u64 val64;
4053 enum vxge_hw_status status = VXGE_HW_OK;
4054 struct __vxge_hw_virtualpath *vpath;
4055
4056 if (vp == NULL) {
4057 status = VXGE_HW_ERR_INVALID_HANDLE;
4058 goto exit;
4059 }
4060 vpath = vp->vpath;
4061
4062 new_mtu += VXGE_HW_MAC_HEADER_MAX_SIZE;
4063
4064 if ((new_mtu < VXGE_HW_MIN_MTU) || (new_mtu > vpath->max_mtu))
4065 status = VXGE_HW_ERR_INVALID_MTU_SIZE;
4066
4067 val64 = readq(&vpath->vp_reg->rxmac_vcfg0);
4068
4069 val64 &= ~VXGE_HW_RXMAC_VCFG0_RTS_MAX_FRM_LEN(0x3fff);
4070 val64 |= VXGE_HW_RXMAC_VCFG0_RTS_MAX_FRM_LEN(new_mtu);
4071
4072 writeq(val64, &vpath->vp_reg->rxmac_vcfg0);
4073
4074 vpath->vp_config->mtu = new_mtu - VXGE_HW_MAC_HEADER_MAX_SIZE;
4075
4076 exit:
4077 return status;
4078 }
4079
4080 /*
4081 * vxge_hw_vpath_open - Open a virtual path on a given adapter
4082 * This function is used to open access to virtual path of an
4083 * adapter for offload, GRO operations. This function returns
4084 * synchronously.
4085 */
4086 enum vxge_hw_status
4087 vxge_hw_vpath_open(struct __vxge_hw_device *hldev,
4088 struct vxge_hw_vpath_attr *attr,
4089 struct __vxge_hw_vpath_handle **vpath_handle)
4090 {
4091 struct __vxge_hw_virtualpath *vpath;
4092 struct __vxge_hw_vpath_handle *vp;
4093 enum vxge_hw_status status;
4094
4095 vpath = &hldev->virtual_paths[attr->vp_id];
4096
4097 if (vpath->vp_open == VXGE_HW_VP_OPEN) {
4098 status = VXGE_HW_ERR_INVALID_STATE;
4099 goto vpath_open_exit1;
4100 }
4101
4102 status = __vxge_hw_vp_initialize(hldev, attr->vp_id,
4103 &hldev->config.vp_config[attr->vp_id]);
4104
4105 if (status != VXGE_HW_OK)
4106 goto vpath_open_exit1;
4107
4108 vp = (struct __vxge_hw_vpath_handle *)
4109 vmalloc(sizeof(struct __vxge_hw_vpath_handle));
4110 if (vp == NULL) {
4111 status = VXGE_HW_ERR_OUT_OF_MEMORY;
4112 goto vpath_open_exit2;
4113 }
4114
4115 memset(vp, 0, sizeof(struct __vxge_hw_vpath_handle));
4116
4117 vp->vpath = vpath;
4118
4119 if (vpath->vp_config->fifo.enable == VXGE_HW_FIFO_ENABLE) {
4120 status = __vxge_hw_fifo_create(vp, &attr->fifo_attr);
4121 if (status != VXGE_HW_OK)
4122 goto vpath_open_exit6;
4123 }
4124
4125 if (vpath->vp_config->ring.enable == VXGE_HW_RING_ENABLE) {
4126 status = __vxge_hw_ring_create(vp, &attr->ring_attr);
4127 if (status != VXGE_HW_OK)
4128 goto vpath_open_exit7;
4129
4130 __vxge_hw_vpath_prc_configure(hldev, attr->vp_id);
4131 }
4132
4133 vpath->fifoh->tx_intr_num =
4134 (attr->vp_id * VXGE_HW_MAX_INTR_PER_VP) +
4135 VXGE_HW_VPATH_INTR_TX;
4136
4137 vpath->stats_block = __vxge_hw_blockpool_block_allocate(hldev,
4138 VXGE_HW_BLOCK_SIZE);
4139
4140 if (vpath->stats_block == NULL) {
4141 status = VXGE_HW_ERR_OUT_OF_MEMORY;
4142 goto vpath_open_exit8;
4143 }
4144
4145 vpath->hw_stats = (struct vxge_hw_vpath_stats_hw_info *)vpath->
4146 stats_block->memblock;
4147 memset(vpath->hw_stats, 0,
4148 sizeof(struct vxge_hw_vpath_stats_hw_info));
4149
4150 hldev->stats.hw_dev_info_stats.vpath_info[attr->vp_id] =
4151 vpath->hw_stats;
4152
4153 vpath->hw_stats_sav =
4154 &hldev->stats.hw_dev_info_stats.vpath_info_sav[attr->vp_id];
4155 memset(vpath->hw_stats_sav, 0,
4156 sizeof(struct vxge_hw_vpath_stats_hw_info));
4157
4158 writeq(vpath->stats_block->dma_addr, &vpath->vp_reg->stats_cfg);
4159
4160 status = vxge_hw_vpath_stats_enable(vp);
4161 if (status != VXGE_HW_OK)
4162 goto vpath_open_exit8;
4163
4164 list_add(&vp->item, &vpath->vpath_handles);
4165
4166 hldev->vpaths_deployed |= vxge_mBIT(vpath->vp_id);
4167
4168 *vpath_handle = vp;
4169
4170 attr->fifo_attr.userdata = vpath->fifoh;
4171 attr->ring_attr.userdata = vpath->ringh;
4172
4173 return VXGE_HW_OK;
4174
4175 vpath_open_exit8:
4176 if (vpath->ringh != NULL)
4177 __vxge_hw_ring_delete(vp);
4178 vpath_open_exit7:
4179 if (vpath->fifoh != NULL)
4180 __vxge_hw_fifo_delete(vp);
4181 vpath_open_exit6:
4182 vfree(vp);
4183 vpath_open_exit2:
4184 __vxge_hw_vp_terminate(hldev, attr->vp_id);
4185 vpath_open_exit1:
4186
4187 return status;
4188 }
4189
4190 /**
4191 * vxge_hw_vpath_rx_doorbell_post - Close the handle got from previous vpath
4192 * (vpath) open
4193 * @vp: Handle got from previous vpath open
4194 *
4195 * This function is used to close access to virtual path opened
4196 * earlier.
4197 */
4198 void
4199 vxge_hw_vpath_rx_doorbell_init(struct __vxge_hw_vpath_handle *vp)
4200 {
4201 struct __vxge_hw_virtualpath *vpath = NULL;
4202 u64 new_count, val64, val164;
4203 struct __vxge_hw_ring *ring;
4204
4205 vpath = vp->vpath;
4206 ring = vpath->ringh;
4207
4208 new_count = readq(&vpath->vp_reg->rxdmem_size);
4209 new_count &= 0x1fff;
4210 val164 = (VXGE_HW_RXDMEM_SIZE_PRC_RXDMEM_SIZE(new_count));
4211
4212 writeq(VXGE_HW_PRC_RXD_DOORBELL_NEW_QW_CNT(val164),
4213 &vpath->vp_reg->prc_rxd_doorbell);
4214 readl(&vpath->vp_reg->prc_rxd_doorbell);
4215
4216 val164 /= 2;
4217 val64 = readq(&vpath->vp_reg->prc_cfg6);
4218 val64 = VXGE_HW_PRC_CFG6_RXD_SPAT(val64);
4219 val64 &= 0x1ff;
4220
4221 /*
4222 * Each RxD is of 4 qwords
4223 */
4224 new_count -= (val64 + 1);
4225 val64 = min(val164, new_count) / 4;
4226
4227 ring->rxds_limit = min(ring->rxds_limit, val64);
4228 if (ring->rxds_limit < 4)
4229 ring->rxds_limit = 4;
4230 }
4231
4232 /*
4233 * vxge_hw_vpath_close - Close the handle got from previous vpath (vpath) open
4234 * This function is used to close access to virtual path opened
4235 * earlier.
4236 */
4237 enum vxge_hw_status vxge_hw_vpath_close(struct __vxge_hw_vpath_handle *vp)
4238 {
4239 struct __vxge_hw_virtualpath *vpath = NULL;
4240 struct __vxge_hw_device *devh = NULL;
4241 u32 vp_id = vp->vpath->vp_id;
4242 u32 is_empty = TRUE;
4243 enum vxge_hw_status status = VXGE_HW_OK;
4244
4245 vpath = vp->vpath;
4246 devh = vpath->hldev;
4247
4248 if (vpath->vp_open == VXGE_HW_VP_NOT_OPEN) {
4249 status = VXGE_HW_ERR_VPATH_NOT_OPEN;
4250 goto vpath_close_exit;
4251 }
4252
4253 list_del(&vp->item);
4254
4255 if (!list_empty(&vpath->vpath_handles)) {
4256 list_add(&vp->item, &vpath->vpath_handles);
4257 is_empty = FALSE;
4258 }
4259
4260 if (!is_empty) {
4261 status = VXGE_HW_FAIL;
4262 goto vpath_close_exit;
4263 }
4264
4265 devh->vpaths_deployed &= ~vxge_mBIT(vp_id);
4266
4267 if (vpath->ringh != NULL)
4268 __vxge_hw_ring_delete(vp);
4269
4270 if (vpath->fifoh != NULL)
4271 __vxge_hw_fifo_delete(vp);
4272
4273 if (vpath->stats_block != NULL)
4274 __vxge_hw_blockpool_block_free(devh, vpath->stats_block);
4275
4276 vfree(vp);
4277
4278 __vxge_hw_vp_terminate(devh, vp_id);
4279
4280 vpath->vp_open = VXGE_HW_VP_NOT_OPEN;
4281
4282 vpath_close_exit:
4283 return status;
4284 }
4285
4286 /*
4287 * vxge_hw_vpath_reset - Resets vpath
4288 * This function is used to request a reset of vpath
4289 */
4290 enum vxge_hw_status vxge_hw_vpath_reset(struct __vxge_hw_vpath_handle *vp)
4291 {
4292 enum vxge_hw_status status;
4293 u32 vp_id;
4294 struct __vxge_hw_virtualpath *vpath = vp->vpath;
4295
4296 vp_id = vpath->vp_id;
4297
4298 if (vpath->vp_open == VXGE_HW_VP_NOT_OPEN) {
4299 status = VXGE_HW_ERR_VPATH_NOT_OPEN;
4300 goto exit;
4301 }
4302
4303 status = __vxge_hw_vpath_reset(vpath->hldev, vp_id);
4304 if (status == VXGE_HW_OK)
4305 vpath->sw_stats->soft_reset_cnt++;
4306 exit:
4307 return status;
4308 }
4309
4310 /*
4311 * vxge_hw_vpath_recover_from_reset - Poll for reset complete and re-initialize.
4312 * This function poll's for the vpath reset completion and re initializes
4313 * the vpath.
4314 */
4315 enum vxge_hw_status
4316 vxge_hw_vpath_recover_from_reset(struct __vxge_hw_vpath_handle *vp)
4317 {
4318 struct __vxge_hw_virtualpath *vpath = NULL;
4319 enum vxge_hw_status status;
4320 struct __vxge_hw_device *hldev;
4321 u32 vp_id;
4322
4323 vp_id = vp->vpath->vp_id;
4324 vpath = vp->vpath;
4325 hldev = vpath->hldev;
4326
4327 if (vpath->vp_open == VXGE_HW_VP_NOT_OPEN) {
4328 status = VXGE_HW_ERR_VPATH_NOT_OPEN;
4329 goto exit;
4330 }
4331
4332 status = __vxge_hw_vpath_reset_check(vpath);
4333 if (status != VXGE_HW_OK)
4334 goto exit;
4335
4336 status = __vxge_hw_vpath_sw_reset(hldev, vp_id);
4337 if (status != VXGE_HW_OK)
4338 goto exit;
4339
4340 status = __vxge_hw_vpath_initialize(hldev, vp_id);
4341 if (status != VXGE_HW_OK)
4342 goto exit;
4343
4344 if (vpath->ringh != NULL)
4345 __vxge_hw_vpath_prc_configure(hldev, vp_id);
4346
4347 memset(vpath->hw_stats, 0,
4348 sizeof(struct vxge_hw_vpath_stats_hw_info));
4349
4350 memset(vpath->hw_stats_sav, 0,
4351 sizeof(struct vxge_hw_vpath_stats_hw_info));
4352
4353 writeq(vpath->stats_block->dma_addr,
4354 &vpath->vp_reg->stats_cfg);
4355
4356 status = vxge_hw_vpath_stats_enable(vp);
4357
4358 exit:
4359 return status;
4360 }
4361
4362 /*
4363 * vxge_hw_vpath_enable - Enable vpath.
4364 * This routine clears the vpath reset thereby enabling a vpath
4365 * to start forwarding frames and generating interrupts.
4366 */
4367 void
4368 vxge_hw_vpath_enable(struct __vxge_hw_vpath_handle *vp)
4369 {
4370 struct __vxge_hw_device *hldev;
4371 u64 val64;
4372
4373 hldev = vp->vpath->hldev;
4374
4375 val64 = VXGE_HW_CMN_RSTHDLR_CFG1_CLR_VPATH_RESET(
4376 1 << (16 - vp->vpath->vp_id));
4377
4378 __vxge_hw_pio_mem_write32_upper((u32)vxge_bVALn(val64, 0, 32),
4379 &hldev->common_reg->cmn_rsthdlr_cfg1);
4380 }
4381
4382 /*
4383 * vxge_hw_vpath_stats_enable - Enable vpath h/wstatistics.
4384 * Enable the DMA vpath statistics. The function is to be called to re-enable
4385 * the adapter to update stats into the host memory
4386 */
4387 enum vxge_hw_status
4388 vxge_hw_vpath_stats_enable(struct __vxge_hw_vpath_handle *vp)
4389 {
4390 enum vxge_hw_status status = VXGE_HW_OK;
4391 struct __vxge_hw_virtualpath *vpath;
4392
4393 vpath = vp->vpath;
4394
4395 if (vpath->vp_open == VXGE_HW_VP_NOT_OPEN) {
4396 status = VXGE_HW_ERR_VPATH_NOT_OPEN;
4397 goto exit;
4398 }
4399
4400 memcpy(vpath->hw_stats_sav, vpath->hw_stats,
4401 sizeof(struct vxge_hw_vpath_stats_hw_info));
4402
4403 status = __vxge_hw_vpath_stats_get(vpath, vpath->hw_stats);
4404 exit:
4405 return status;
4406 }
4407
4408 /*
4409 * __vxge_hw_vpath_stats_access - Get the statistics from the given location
4410 * and offset and perform an operation
4411 */
4412 enum vxge_hw_status
4413 __vxge_hw_vpath_stats_access(struct __vxge_hw_virtualpath *vpath,
4414 u32 operation, u32 offset, u64 *stat)
4415 {
4416 u64 val64;
4417 enum vxge_hw_status status = VXGE_HW_OK;
4418 struct vxge_hw_vpath_reg __iomem *vp_reg;
4419
4420 if (vpath->vp_open == VXGE_HW_VP_NOT_OPEN) {
4421 status = VXGE_HW_ERR_VPATH_NOT_OPEN;
4422 goto vpath_stats_access_exit;
4423 }
4424
4425 vp_reg = vpath->vp_reg;
4426
4427 val64 = VXGE_HW_XMAC_STATS_ACCESS_CMD_OP(operation) |
4428 VXGE_HW_XMAC_STATS_ACCESS_CMD_STROBE |
4429 VXGE_HW_XMAC_STATS_ACCESS_CMD_OFFSET_SEL(offset);
4430
4431 status = __vxge_hw_pio_mem_write64(val64,
4432 &vp_reg->xmac_stats_access_cmd,
4433 VXGE_HW_XMAC_STATS_ACCESS_CMD_STROBE,
4434 vpath->hldev->config.device_poll_millis);
4435
4436 if ((status == VXGE_HW_OK) && (operation == VXGE_HW_STATS_OP_READ))
4437 *stat = readq(&vp_reg->xmac_stats_access_data);
4438 else
4439 *stat = 0;
4440
4441 vpath_stats_access_exit:
4442 return status;
4443 }
4444
4445 /*
4446 * __vxge_hw_vpath_xmac_tx_stats_get - Get the TX Statistics of a vpath
4447 */
4448 enum vxge_hw_status
4449 __vxge_hw_vpath_xmac_tx_stats_get(
4450 struct __vxge_hw_virtualpath *vpath,
4451 struct vxge_hw_xmac_vpath_tx_stats *vpath_tx_stats)
4452 {
4453 u64 *val64;
4454 int i;
4455 u32 offset = VXGE_HW_STATS_VPATH_TX_OFFSET;
4456 enum vxge_hw_status status = VXGE_HW_OK;
4457
4458 val64 = (u64 *) vpath_tx_stats;
4459
4460 if (vpath->vp_open == VXGE_HW_VP_NOT_OPEN) {
4461 status = VXGE_HW_ERR_VPATH_NOT_OPEN;
4462 goto exit;
4463 }
4464
4465 for (i = 0; i < sizeof(struct vxge_hw_xmac_vpath_tx_stats) / 8; i++) {
4466 status = __vxge_hw_vpath_stats_access(vpath,
4467 VXGE_HW_STATS_OP_READ,
4468 offset, val64);
4469 if (status != VXGE_HW_OK)
4470 goto exit;
4471 offset++;
4472 val64++;
4473 }
4474 exit:
4475 return status;
4476 }
4477
4478 /*
4479 * __vxge_hw_vpath_xmac_rx_stats_get - Get the RX Statistics of a vpath
4480 */
4481 enum vxge_hw_status
4482 __vxge_hw_vpath_xmac_rx_stats_get(struct __vxge_hw_virtualpath *vpath,
4483 struct vxge_hw_xmac_vpath_rx_stats *vpath_rx_stats)
4484 {
4485 u64 *val64;
4486 enum vxge_hw_status status = VXGE_HW_OK;
4487 int i;
4488 u32 offset = VXGE_HW_STATS_VPATH_RX_OFFSET;
4489 val64 = (u64 *) vpath_rx_stats;
4490
4491 if (vpath->vp_open == VXGE_HW_VP_NOT_OPEN) {
4492 status = VXGE_HW_ERR_VPATH_NOT_OPEN;
4493 goto exit;
4494 }
4495 for (i = 0; i < sizeof(struct vxge_hw_xmac_vpath_rx_stats) / 8; i++) {
4496 status = __vxge_hw_vpath_stats_access(vpath,
4497 VXGE_HW_STATS_OP_READ,
4498 offset >> 3, val64);
4499 if (status != VXGE_HW_OK)
4500 goto exit;
4501
4502 offset += 8;
4503 val64++;
4504 }
4505 exit:
4506 return status;
4507 }
4508
4509 /*
4510 * __vxge_hw_vpath_stats_get - Get the vpath hw statistics.
4511 */
4512 enum vxge_hw_status __vxge_hw_vpath_stats_get(
4513 struct __vxge_hw_virtualpath *vpath,
4514 struct vxge_hw_vpath_stats_hw_info *hw_stats)
4515 {
4516 u64 val64;
4517 enum vxge_hw_status status = VXGE_HW_OK;
4518 struct vxge_hw_vpath_reg __iomem *vp_reg;
4519
4520 if (vpath->vp_open == VXGE_HW_VP_NOT_OPEN) {
4521 status = VXGE_HW_ERR_VPATH_NOT_OPEN;
4522 goto exit;
4523 }
4524 vp_reg = vpath->vp_reg;
4525
4526 val64 = readq(&vp_reg->vpath_debug_stats0);
4527 hw_stats->ini_num_mwr_sent =
4528 (u32)VXGE_HW_VPATH_DEBUG_STATS0_GET_INI_NUM_MWR_SENT(val64);
4529
4530 val64 = readq(&vp_reg->vpath_debug_stats1);
4531 hw_stats->ini_num_mrd_sent =
4532 (u32)VXGE_HW_VPATH_DEBUG_STATS1_GET_INI_NUM_MRD_SENT(val64);
4533
4534 val64 = readq(&vp_reg->vpath_debug_stats2);
4535 hw_stats->ini_num_cpl_rcvd =
4536 (u32)VXGE_HW_VPATH_DEBUG_STATS2_GET_INI_NUM_CPL_RCVD(val64);
4537
4538 val64 = readq(&vp_reg->vpath_debug_stats3);
4539 hw_stats->ini_num_mwr_byte_sent =
4540 VXGE_HW_VPATH_DEBUG_STATS3_GET_INI_NUM_MWR_BYTE_SENT(val64);
4541
4542 val64 = readq(&vp_reg->vpath_debug_stats4);
4543 hw_stats->ini_num_cpl_byte_rcvd =
4544 VXGE_HW_VPATH_DEBUG_STATS4_GET_INI_NUM_CPL_BYTE_RCVD(val64);
4545
4546 val64 = readq(&vp_reg->vpath_debug_stats5);
4547 hw_stats->wrcrdtarb_xoff =
4548 (u32)VXGE_HW_VPATH_DEBUG_STATS5_GET_WRCRDTARB_XOFF(val64);
4549
4550 val64 = readq(&vp_reg->vpath_debug_stats6);
4551 hw_stats->rdcrdtarb_xoff =
4552 (u32)VXGE_HW_VPATH_DEBUG_STATS6_GET_RDCRDTARB_XOFF(val64);
4553
4554 val64 = readq(&vp_reg->vpath_genstats_count01);
4555 hw_stats->vpath_genstats_count0 =
4556 (u32)VXGE_HW_VPATH_GENSTATS_COUNT01_GET_PPIF_VPATH_GENSTATS_COUNT0(
4557 val64);
4558
4559 val64 = readq(&vp_reg->vpath_genstats_count01);
4560 hw_stats->vpath_genstats_count1 =
4561 (u32)VXGE_HW_VPATH_GENSTATS_COUNT01_GET_PPIF_VPATH_GENSTATS_COUNT1(
4562 val64);
4563
4564 val64 = readq(&vp_reg->vpath_genstats_count23);
4565 hw_stats->vpath_genstats_count2 =
4566 (u32)VXGE_HW_VPATH_GENSTATS_COUNT23_GET_PPIF_VPATH_GENSTATS_COUNT2(
4567 val64);
4568
4569 val64 = readq(&vp_reg->vpath_genstats_count01);
4570 hw_stats->vpath_genstats_count3 =
4571 (u32)VXGE_HW_VPATH_GENSTATS_COUNT23_GET_PPIF_VPATH_GENSTATS_COUNT3(
4572 val64);
4573
4574 val64 = readq(&vp_reg->vpath_genstats_count4);
4575 hw_stats->vpath_genstats_count4 =
4576 (u32)VXGE_HW_VPATH_GENSTATS_COUNT4_GET_PPIF_VPATH_GENSTATS_COUNT4(
4577 val64);
4578
4579 val64 = readq(&vp_reg->vpath_genstats_count5);
4580 hw_stats->vpath_genstats_count5 =
4581 (u32)VXGE_HW_VPATH_GENSTATS_COUNT5_GET_PPIF_VPATH_GENSTATS_COUNT5(
4582 val64);
4583
4584 status = __vxge_hw_vpath_xmac_tx_stats_get(vpath, &hw_stats->tx_stats);
4585 if (status != VXGE_HW_OK)
4586 goto exit;
4587
4588 status = __vxge_hw_vpath_xmac_rx_stats_get(vpath, &hw_stats->rx_stats);
4589 if (status != VXGE_HW_OK)
4590 goto exit;
4591
4592 VXGE_HW_VPATH_STATS_PIO_READ(
4593 VXGE_HW_STATS_VPATH_PROG_EVENT_VNUM0_OFFSET);
4594
4595 hw_stats->prog_event_vnum0 =
4596 (u32)VXGE_HW_STATS_GET_VPATH_PROG_EVENT_VNUM0(val64);
4597
4598 hw_stats->prog_event_vnum1 =
4599 (u32)VXGE_HW_STATS_GET_VPATH_PROG_EVENT_VNUM1(val64);
4600
4601 VXGE_HW_VPATH_STATS_PIO_READ(
4602 VXGE_HW_STATS_VPATH_PROG_EVENT_VNUM2_OFFSET);
4603
4604 hw_stats->prog_event_vnum2 =
4605 (u32)VXGE_HW_STATS_GET_VPATH_PROG_EVENT_VNUM2(val64);
4606
4607 hw_stats->prog_event_vnum3 =
4608 (u32)VXGE_HW_STATS_GET_VPATH_PROG_EVENT_VNUM3(val64);
4609
4610 val64 = readq(&vp_reg->rx_multi_cast_stats);
4611 hw_stats->rx_multi_cast_frame_discard =
4612 (u16)VXGE_HW_RX_MULTI_CAST_STATS_GET_FRAME_DISCARD(val64);
4613
4614 val64 = readq(&vp_reg->rx_frm_transferred);
4615 hw_stats->rx_frm_transferred =
4616 (u32)VXGE_HW_RX_FRM_TRANSFERRED_GET_RX_FRM_TRANSFERRED(val64);
4617
4618 val64 = readq(&vp_reg->rxd_returned);
4619 hw_stats->rxd_returned =
4620 (u16)VXGE_HW_RXD_RETURNED_GET_RXD_RETURNED(val64);
4621
4622 val64 = readq(&vp_reg->dbg_stats_rx_mpa);
4623 hw_stats->rx_mpa_len_fail_frms =
4624 (u16)VXGE_HW_DBG_STATS_GET_RX_MPA_LEN_FAIL_FRMS(val64);
4625 hw_stats->rx_mpa_mrk_fail_frms =
4626 (u16)VXGE_HW_DBG_STATS_GET_RX_MPA_MRK_FAIL_FRMS(val64);
4627 hw_stats->rx_mpa_crc_fail_frms =
4628 (u16)VXGE_HW_DBG_STATS_GET_RX_MPA_CRC_FAIL_FRMS(val64);
4629
4630 val64 = readq(&vp_reg->dbg_stats_rx_fau);
4631 hw_stats->rx_permitted_frms =
4632 (u16)VXGE_HW_DBG_STATS_GET_RX_FAU_RX_PERMITTED_FRMS(val64);
4633 hw_stats->rx_vp_reset_discarded_frms =
4634 (u16)VXGE_HW_DBG_STATS_GET_RX_FAU_RX_VP_RESET_DISCARDED_FRMS(val64);
4635 hw_stats->rx_wol_frms =
4636 (u16)VXGE_HW_DBG_STATS_GET_RX_FAU_RX_WOL_FRMS(val64);
4637
4638 val64 = readq(&vp_reg->tx_vp_reset_discarded_frms);
4639 hw_stats->tx_vp_reset_discarded_frms =
4640 (u16)VXGE_HW_TX_VP_RESET_DISCARDED_FRMS_GET_TX_VP_RESET_DISCARDED_FRMS(
4641 val64);
4642 exit:
4643 return status;
4644 }
4645
4646 /*
4647 * __vxge_hw_blockpool_create - Create block pool
4648 */
4649
4650 enum vxge_hw_status
4651 __vxge_hw_blockpool_create(struct __vxge_hw_device *hldev,
4652 struct __vxge_hw_blockpool *blockpool,
4653 u32 pool_size,
4654 u32 pool_max)
4655 {
4656 u32 i;
4657 struct __vxge_hw_blockpool_entry *entry = NULL;
4658 void *memblock;
4659 dma_addr_t dma_addr;
4660 struct pci_dev *dma_handle;
4661 struct pci_dev *acc_handle;
4662 enum vxge_hw_status status = VXGE_HW_OK;
4663
4664 if (blockpool == NULL) {
4665 status = VXGE_HW_FAIL;
4666 goto blockpool_create_exit;
4667 }
4668
4669 blockpool->hldev = hldev;
4670 blockpool->block_size = VXGE_HW_BLOCK_SIZE;
4671 blockpool->pool_size = 0;
4672 blockpool->pool_max = pool_max;
4673 blockpool->req_out = 0;
4674
4675 INIT_LIST_HEAD(&blockpool->free_block_list);
4676 INIT_LIST_HEAD(&blockpool->free_entry_list);
4677
4678 for (i = 0; i < pool_size + pool_max; i++) {
4679 entry = kzalloc(sizeof(struct __vxge_hw_blockpool_entry),
4680 GFP_KERNEL);
4681 if (entry == NULL) {
4682 __vxge_hw_blockpool_destroy(blockpool);
4683 status = VXGE_HW_ERR_OUT_OF_MEMORY;
4684 goto blockpool_create_exit;
4685 }
4686 list_add(&entry->item, &blockpool->free_entry_list);
4687 }
4688
4689 for (i = 0; i < pool_size; i++) {
4690
4691 memblock = vxge_os_dma_malloc(
4692 hldev->pdev,
4693 VXGE_HW_BLOCK_SIZE,
4694 &dma_handle,
4695 &acc_handle);
4696
4697 if (memblock == NULL) {
4698 __vxge_hw_blockpool_destroy(blockpool);
4699 status = VXGE_HW_ERR_OUT_OF_MEMORY;
4700 goto blockpool_create_exit;
4701 }
4702
4703 dma_addr = pci_map_single(hldev->pdev, memblock,
4704 VXGE_HW_BLOCK_SIZE, PCI_DMA_BIDIRECTIONAL);
4705
4706 if (unlikely(pci_dma_mapping_error(hldev->pdev,
4707 dma_addr))) {
4708
4709 vxge_os_dma_free(hldev->pdev, memblock, &acc_handle);
4710 __vxge_hw_blockpool_destroy(blockpool);
4711 status = VXGE_HW_ERR_OUT_OF_MEMORY;
4712 goto blockpool_create_exit;
4713 }
4714
4715 if (!list_empty(&blockpool->free_entry_list))
4716 entry = (struct __vxge_hw_blockpool_entry *)
4717 list_first_entry(&blockpool->free_entry_list,
4718 struct __vxge_hw_blockpool_entry,
4719 item);
4720
4721 if (entry == NULL)
4722 entry =
4723 kzalloc(sizeof(struct __vxge_hw_blockpool_entry),
4724 GFP_KERNEL);
4725 if (entry != NULL) {
4726 list_del(&entry->item);
4727 entry->length = VXGE_HW_BLOCK_SIZE;
4728 entry->memblock = memblock;
4729 entry->dma_addr = dma_addr;
4730 entry->acc_handle = acc_handle;
4731 entry->dma_handle = dma_handle;
4732 list_add(&entry->item,
4733 &blockpool->free_block_list);
4734 blockpool->pool_size++;
4735 } else {
4736 __vxge_hw_blockpool_destroy(blockpool);
4737 status = VXGE_HW_ERR_OUT_OF_MEMORY;
4738 goto blockpool_create_exit;
4739 }
4740 }
4741
4742 blockpool_create_exit:
4743 return status;
4744 }
4745
4746 /*
4747 * __vxge_hw_blockpool_destroy - Deallocates the block pool
4748 */
4749
4750 void __vxge_hw_blockpool_destroy(struct __vxge_hw_blockpool *blockpool)
4751 {
4752
4753 struct __vxge_hw_device *hldev;
4754 struct list_head *p, *n;
4755 u16 ret;
4756
4757 if (blockpool == NULL) {
4758 ret = 1;
4759 goto exit;
4760 }
4761
4762 hldev = blockpool->hldev;
4763
4764 list_for_each_safe(p, n, &blockpool->free_block_list) {
4765
4766 pci_unmap_single(hldev->pdev,
4767 ((struct __vxge_hw_blockpool_entry *)p)->dma_addr,
4768 ((struct __vxge_hw_blockpool_entry *)p)->length,
4769 PCI_DMA_BIDIRECTIONAL);
4770
4771 vxge_os_dma_free(hldev->pdev,
4772 ((struct __vxge_hw_blockpool_entry *)p)->memblock,
4773 &((struct __vxge_hw_blockpool_entry *) p)->acc_handle);
4774
4775 list_del(
4776 &((struct __vxge_hw_blockpool_entry *)p)->item);
4777 kfree(p);
4778 blockpool->pool_size--;
4779 }
4780
4781 list_for_each_safe(p, n, &blockpool->free_entry_list) {
4782 list_del(
4783 &((struct __vxge_hw_blockpool_entry *)p)->item);
4784 kfree((void *)p);
4785 }
4786 ret = 0;
4787 exit:
4788 return;
4789 }
4790
4791 /*
4792 * __vxge_hw_blockpool_blocks_add - Request additional blocks
4793 */
4794 static
4795 void __vxge_hw_blockpool_blocks_add(struct __vxge_hw_blockpool *blockpool)
4796 {
4797 u32 nreq = 0, i;
4798
4799 if ((blockpool->pool_size + blockpool->req_out) <
4800 VXGE_HW_MIN_DMA_BLOCK_POOL_SIZE) {
4801 nreq = VXGE_HW_INCR_DMA_BLOCK_POOL_SIZE;
4802 blockpool->req_out += nreq;
4803 }
4804
4805 for (i = 0; i < nreq; i++)
4806 vxge_os_dma_malloc_async(
4807 ((struct __vxge_hw_device *)blockpool->hldev)->pdev,
4808 blockpool->hldev, VXGE_HW_BLOCK_SIZE);
4809 }
4810
4811 /*
4812 * __vxge_hw_blockpool_blocks_remove - Free additional blocks
4813 */
4814 static
4815 void __vxge_hw_blockpool_blocks_remove(struct __vxge_hw_blockpool *blockpool)
4816 {
4817 struct list_head *p, *n;
4818
4819 list_for_each_safe(p, n, &blockpool->free_block_list) {
4820
4821 if (blockpool->pool_size < blockpool->pool_max)
4822 break;
4823
4824 pci_unmap_single(
4825 ((struct __vxge_hw_device *)blockpool->hldev)->pdev,
4826 ((struct __vxge_hw_blockpool_entry *)p)->dma_addr,
4827 ((struct __vxge_hw_blockpool_entry *)p)->length,
4828 PCI_DMA_BIDIRECTIONAL);
4829
4830 vxge_os_dma_free(
4831 ((struct __vxge_hw_device *)blockpool->hldev)->pdev,
4832 ((struct __vxge_hw_blockpool_entry *)p)->memblock,
4833 &((struct __vxge_hw_blockpool_entry *)p)->acc_handle);
4834
4835 list_del(&((struct __vxge_hw_blockpool_entry *)p)->item);
4836
4837 list_add(p, &blockpool->free_entry_list);
4838
4839 blockpool->pool_size--;
4840
4841 }
4842 }
4843
4844 /*
4845 * vxge_hw_blockpool_block_add - callback for vxge_os_dma_malloc_async
4846 * Adds a block to block pool
4847 */
4848 void vxge_hw_blockpool_block_add(
4849 struct __vxge_hw_device *devh,
4850 void *block_addr,
4851 u32 length,
4852 struct pci_dev *dma_h,
4853 struct pci_dev *acc_handle)
4854 {
4855 struct __vxge_hw_blockpool *blockpool;
4856 struct __vxge_hw_blockpool_entry *entry = NULL;
4857 dma_addr_t dma_addr;
4858 enum vxge_hw_status status = VXGE_HW_OK;
4859 u32 req_out;
4860
4861 blockpool = &devh->block_pool;
4862
4863 if (block_addr == NULL) {
4864 blockpool->req_out--;
4865 status = VXGE_HW_FAIL;
4866 goto exit;
4867 }
4868
4869 dma_addr = pci_map_single(devh->pdev, block_addr, length,
4870 PCI_DMA_BIDIRECTIONAL);
4871
4872 if (unlikely(pci_dma_mapping_error(devh->pdev, dma_addr))) {
4873
4874 vxge_os_dma_free(devh->pdev, block_addr, &acc_handle);
4875 blockpool->req_out--;
4876 status = VXGE_HW_FAIL;
4877 goto exit;
4878 }
4879
4880
4881 if (!list_empty(&blockpool->free_entry_list))
4882 entry = (struct __vxge_hw_blockpool_entry *)
4883 list_first_entry(&blockpool->free_entry_list,
4884 struct __vxge_hw_blockpool_entry,
4885 item);
4886
4887 if (entry == NULL)
4888 entry = (struct __vxge_hw_blockpool_entry *)
4889 vmalloc(sizeof(struct __vxge_hw_blockpool_entry));
4890 else
4891 list_del(&entry->item);
4892
4893 if (entry != NULL) {
4894 entry->length = length;
4895 entry->memblock = block_addr;
4896 entry->dma_addr = dma_addr;
4897 entry->acc_handle = acc_handle;
4898 entry->dma_handle = dma_h;
4899 list_add(&entry->item, &blockpool->free_block_list);
4900 blockpool->pool_size++;
4901 status = VXGE_HW_OK;
4902 } else
4903 status = VXGE_HW_ERR_OUT_OF_MEMORY;
4904
4905 blockpool->req_out--;
4906
4907 req_out = blockpool->req_out;
4908 exit:
4909 return;
4910 }
4911
4912 /*
4913 * __vxge_hw_blockpool_malloc - Allocate a memory block from pool
4914 * Allocates a block of memory of given size, either from block pool
4915 * or by calling vxge_os_dma_malloc()
4916 */
4917 void *
4918 __vxge_hw_blockpool_malloc(struct __vxge_hw_device *devh, u32 size,
4919 struct vxge_hw_mempool_dma *dma_object)
4920 {
4921 struct __vxge_hw_blockpool_entry *entry = NULL;
4922 struct __vxge_hw_blockpool *blockpool;
4923 void *memblock = NULL;
4924 enum vxge_hw_status status = VXGE_HW_OK;
4925
4926 blockpool = &devh->block_pool;
4927
4928 if (size != blockpool->block_size) {
4929
4930 memblock = vxge_os_dma_malloc(devh->pdev, size,
4931 &dma_object->handle,
4932 &dma_object->acc_handle);
4933
4934 if (memblock == NULL) {
4935 status = VXGE_HW_ERR_OUT_OF_MEMORY;
4936 goto exit;
4937 }
4938
4939 dma_object->addr = pci_map_single(devh->pdev, memblock, size,
4940 PCI_DMA_BIDIRECTIONAL);
4941
4942 if (unlikely(pci_dma_mapping_error(devh->pdev,
4943 dma_object->addr))) {
4944 vxge_os_dma_free(devh->pdev, memblock,
4945 &dma_object->acc_handle);
4946 status = VXGE_HW_ERR_OUT_OF_MEMORY;
4947 goto exit;
4948 }
4949
4950 } else {
4951
4952 if (!list_empty(&blockpool->free_block_list))
4953 entry = (struct __vxge_hw_blockpool_entry *)
4954 list_first_entry(&blockpool->free_block_list,
4955 struct __vxge_hw_blockpool_entry,
4956 item);
4957
4958 if (entry != NULL) {
4959 list_del(&entry->item);
4960 dma_object->addr = entry->dma_addr;
4961 dma_object->handle = entry->dma_handle;
4962 dma_object->acc_handle = entry->acc_handle;
4963 memblock = entry->memblock;
4964
4965 list_add(&entry->item,
4966 &blockpool->free_entry_list);
4967 blockpool->pool_size--;
4968 }
4969
4970 if (memblock != NULL)
4971 __vxge_hw_blockpool_blocks_add(blockpool);
4972 }
4973 exit:
4974 return memblock;
4975 }
4976
4977 /*
4978 * __vxge_hw_blockpool_free - Frees the memory allcoated with
4979 __vxge_hw_blockpool_malloc
4980 */
4981 void
4982 __vxge_hw_blockpool_free(struct __vxge_hw_device *devh,
4983 void *memblock, u32 size,
4984 struct vxge_hw_mempool_dma *dma_object)
4985 {
4986 struct __vxge_hw_blockpool_entry *entry = NULL;
4987 struct __vxge_hw_blockpool *blockpool;
4988 enum vxge_hw_status status = VXGE_HW_OK;
4989
4990 blockpool = &devh->block_pool;
4991
4992 if (size != blockpool->block_size) {
4993 pci_unmap_single(devh->pdev, dma_object->addr, size,
4994 PCI_DMA_BIDIRECTIONAL);
4995 vxge_os_dma_free(devh->pdev, memblock, &dma_object->acc_handle);
4996 } else {
4997
4998 if (!list_empty(&blockpool->free_entry_list))
4999 entry = (struct __vxge_hw_blockpool_entry *)
5000 list_first_entry(&blockpool->free_entry_list,
5001 struct __vxge_hw_blockpool_entry,
5002 item);
5003
5004 if (entry == NULL)
5005 entry = (struct __vxge_hw_blockpool_entry *)
5006 vmalloc(sizeof(
5007 struct __vxge_hw_blockpool_entry));
5008 else
5009 list_del(&entry->item);
5010
5011 if (entry != NULL) {
5012 entry->length = size;
5013 entry->memblock = memblock;
5014 entry->dma_addr = dma_object->addr;
5015 entry->acc_handle = dma_object->acc_handle;
5016 entry->dma_handle = dma_object->handle;
5017 list_add(&entry->item,
5018 &blockpool->free_block_list);
5019 blockpool->pool_size++;
5020 status = VXGE_HW_OK;
5021 } else
5022 status = VXGE_HW_ERR_OUT_OF_MEMORY;
5023
5024 if (status == VXGE_HW_OK)
5025 __vxge_hw_blockpool_blocks_remove(blockpool);
5026 }
5027 }
5028
5029 /*
5030 * __vxge_hw_blockpool_block_allocate - Allocates a block from block pool
5031 * This function allocates a block from block pool or from the system
5032 */
5033 struct __vxge_hw_blockpool_entry *
5034 __vxge_hw_blockpool_block_allocate(struct __vxge_hw_device *devh, u32 size)
5035 {
5036 struct __vxge_hw_blockpool_entry *entry = NULL;
5037 struct __vxge_hw_blockpool *blockpool;
5038
5039 blockpool = &devh->block_pool;
5040
5041 if (size == blockpool->block_size) {
5042
5043 if (!list_empty(&blockpool->free_block_list))
5044 entry = (struct __vxge_hw_blockpool_entry *)
5045 list_first_entry(&blockpool->free_block_list,
5046 struct __vxge_hw_blockpool_entry,
5047 item);
5048
5049 if (entry != NULL) {
5050 list_del(&entry->item);
5051 blockpool->pool_size--;
5052 }
5053 }
5054
5055 if (entry != NULL)
5056 __vxge_hw_blockpool_blocks_add(blockpool);
5057
5058 return entry;
5059 }
5060
5061 /*
5062 * __vxge_hw_blockpool_block_free - Frees a block from block pool
5063 * @devh: Hal device
5064 * @entry: Entry of block to be freed
5065 *
5066 * This function frees a block from block pool
5067 */
5068 void
5069 __vxge_hw_blockpool_block_free(struct __vxge_hw_device *devh,
5070 struct __vxge_hw_blockpool_entry *entry)
5071 {
5072 struct __vxge_hw_blockpool *blockpool;
5073
5074 blockpool = &devh->block_pool;
5075
5076 if (entry->length == blockpool->block_size) {
5077 list_add(&entry->item, &blockpool->free_block_list);
5078 blockpool->pool_size++;
5079 }
5080
5081 __vxge_hw_blockpool_blocks_remove(blockpool);
5082 }
Linux with added FPC-III support