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ocfs2: Introduce dir lookup helper struct
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / net / vxge / vxge-config.c
blob6b41c884a3372ce6a30b3c1203c816633f02df95
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
19 #include "vxge-traffic.h"
20 #include "vxge-config.h"
21
22 /*
23 * __vxge_hw_channel_allocate - Allocate memory for channel
24 * This function allocates required memory for the channel and various arrays
25 * in the channel
26 */
27 struct __vxge_hw_channel*
28 __vxge_hw_channel_allocate(struct __vxge_hw_vpath_handle *vph,
29 enum __vxge_hw_channel_type type,
30 u32 length, u32 per_dtr_space, void *userdata)
31 {
32 struct __vxge_hw_channel *channel;
33 struct __vxge_hw_device *hldev;
34 int size = 0;
35 u32 vp_id;
36
37 hldev = vph->vpath->hldev;
38 vp_id = vph->vpath->vp_id;
39
40 switch (type) {
41 case VXGE_HW_CHANNEL_TYPE_FIFO:
42 size = sizeof(struct __vxge_hw_fifo);
43 break;
44 case VXGE_HW_CHANNEL_TYPE_RING:
45 size = sizeof(struct __vxge_hw_ring);
46 break;
47 default:
48 break;
49 }
50
51 channel = kzalloc(size, GFP_KERNEL);
52 if (channel == NULL)
53 goto exit0;
54 INIT_LIST_HEAD(&channel->item);
55
56 channel->common_reg = hldev->common_reg;
57 channel->first_vp_id = hldev->first_vp_id;
58 channel->type = type;
59 channel->devh = hldev;
60 channel->vph = vph;
61 channel->userdata = userdata;
62 channel->per_dtr_space = per_dtr_space;
63 channel->length = length;
64 channel->vp_id = vp_id;
65
66 channel->work_arr = kzalloc(sizeof(void *)*length, GFP_KERNEL);
67 if (channel->work_arr == NULL)
68 goto exit1;
69
70 channel->free_arr = kzalloc(sizeof(void *)*length, GFP_KERNEL);
71 if (channel->free_arr == NULL)
72 goto exit1;
73 channel->free_ptr = length;
74
75 channel->reserve_arr = kzalloc(sizeof(void *)*length, GFP_KERNEL);
76 if (channel->reserve_arr == NULL)
77 goto exit1;
78 channel->reserve_ptr = length;
79 channel->reserve_top = 0;
80
81 channel->orig_arr = kzalloc(sizeof(void *)*length, GFP_KERNEL);
82 if (channel->orig_arr == NULL)
83 goto exit1;
84
85 return channel;
86 exit1:
87 __vxge_hw_channel_free(channel);
88
89 exit0:
90 return NULL;
91 }
92
93 /*
94 * __vxge_hw_channel_free - Free memory allocated for channel
95 * This function deallocates memory from the channel and various arrays
96 * in the channel
97 */
98 void __vxge_hw_channel_free(struct __vxge_hw_channel *channel)
99 {
100 kfree(channel->work_arr);
101 kfree(channel->free_arr);
102 kfree(channel->reserve_arr);
103 kfree(channel->orig_arr);
104 kfree(channel);
105 }
106
107 /*
108 * __vxge_hw_channel_initialize - Initialize a channel
109 * This function initializes a channel by properly setting the
110 * various references
111 */
112 enum vxge_hw_status
113 __vxge_hw_channel_initialize(struct __vxge_hw_channel *channel)
114 {
115 u32 i;
116 struct __vxge_hw_virtualpath *vpath;
117
118 vpath = channel->vph->vpath;
119
120 if ((channel->reserve_arr != NULL) && (channel->orig_arr != NULL)) {
121 for (i = 0; i < channel->length; i++)
122 channel->orig_arr[i] = channel->reserve_arr[i];
123 }
124
125 switch (channel->type) {
126 case VXGE_HW_CHANNEL_TYPE_FIFO:
127 vpath->fifoh = (struct __vxge_hw_fifo *)channel;
128 channel->stats = &((struct __vxge_hw_fifo *)
129 channel)->stats->common_stats;
130 break;
131 case VXGE_HW_CHANNEL_TYPE_RING:
132 vpath->ringh = (struct __vxge_hw_ring *)channel;
133 channel->stats = &((struct __vxge_hw_ring *)
134 channel)->stats->common_stats;
135 break;
136 default:
137 break;
138 }
139
140 return VXGE_HW_OK;
141 }
142
143 /*
144 * __vxge_hw_channel_reset - Resets a channel
145 * This function resets a channel by properly setting the various references
146 */
147 enum vxge_hw_status
148 __vxge_hw_channel_reset(struct __vxge_hw_channel *channel)
149 {
150 u32 i;
151
152 for (i = 0; i < channel->length; i++) {
153 if (channel->reserve_arr != NULL)
154 channel->reserve_arr[i] = channel->orig_arr[i];
155 if (channel->free_arr != NULL)
156 channel->free_arr[i] = NULL;
157 if (channel->work_arr != NULL)
158 channel->work_arr[i] = NULL;
159 }
160 channel->free_ptr = channel->length;
161 channel->reserve_ptr = channel->length;
162 channel->reserve_top = 0;
163 channel->post_index = 0;
164 channel->compl_index = 0;
165
166 return VXGE_HW_OK;
167 }
168
169 /*
170 * __vxge_hw_device_pci_e_init
171 * Initialize certain PCI/PCI-X configuration registers
172 * with recommended values. Save config space for future hw resets.
173 */
174 void
175 __vxge_hw_device_pci_e_init(struct __vxge_hw_device *hldev)
176 {
177 u16 cmd = 0;
178
179 /* Set the PErr Repconse bit and SERR in PCI command register. */
180 pci_read_config_word(hldev->pdev, PCI_COMMAND, &cmd);
181 cmd |= 0x140;
182 pci_write_config_word(hldev->pdev, PCI_COMMAND, cmd);
183
184 pci_save_state(hldev->pdev);
185
186 return;
187 }
188
189 /*
190 * __vxge_hw_device_register_poll
191 * Will poll certain register for specified amount of time.
192 * Will poll until masked bit is not cleared.
193 */
194 enum vxge_hw_status
195 __vxge_hw_device_register_poll(void __iomem *reg, u64 mask, u32 max_millis)
196 {
197 u64 val64;
198 u32 i = 0;
199 enum vxge_hw_status ret = VXGE_HW_FAIL;
200
201 udelay(10);
202
203 do {
204 val64 = readq(reg);
205 if (!(val64 & mask))
206 return VXGE_HW_OK;
207 udelay(100);
208 } while (++i <= 9);
209
210 i = 0;
211 do {
212 val64 = readq(reg);
213 if (!(val64 & mask))
214 return VXGE_HW_OK;
215 mdelay(1);
216 } while (++i <= max_millis);
217
218 return ret;
219 }
220
221 /* __vxge_hw_device_vpath_reset_in_prog_check - Check if vpath reset
222 * in progress
223 * This routine checks the vpath reset in progress register is turned zero
224 */
225 enum vxge_hw_status
226 __vxge_hw_device_vpath_reset_in_prog_check(u64 __iomem *vpath_rst_in_prog)
227 {
228 enum vxge_hw_status status;
229 status = __vxge_hw_device_register_poll(vpath_rst_in_prog,
230 VXGE_HW_VPATH_RST_IN_PROG_VPATH_RST_IN_PROG(0x1ffff),
231 VXGE_HW_DEF_DEVICE_POLL_MILLIS);
232 return status;
233 }
234
235 /*
236 * __vxge_hw_device_toc_get
237 * This routine sets the swapper and reads the toc pointer and returns the
238 * memory mapped address of the toc
239 */
240 struct vxge_hw_toc_reg __iomem *
241 __vxge_hw_device_toc_get(void __iomem *bar0)
242 {
243 u64 val64;
244 struct vxge_hw_toc_reg __iomem *toc = NULL;
245 enum vxge_hw_status status;
246
247 struct vxge_hw_legacy_reg __iomem *legacy_reg =
248 (struct vxge_hw_legacy_reg __iomem *)bar0;
249
250 status = __vxge_hw_legacy_swapper_set(legacy_reg);
251 if (status != VXGE_HW_OK)
252 goto exit;
253
254 val64 = readq(&legacy_reg->toc_first_pointer);
255 toc = (struct vxge_hw_toc_reg __iomem *)(bar0+val64);
256 exit:
257 return toc;
258 }
259
260 /*
261 * __vxge_hw_device_reg_addr_get
262 * This routine sets the swapper and reads the toc pointer and initializes the
263 * register location pointers in the device object. It waits until the ric is
264 * completed initializing registers.
265 */
266 enum vxge_hw_status
267 __vxge_hw_device_reg_addr_get(struct __vxge_hw_device *hldev)
268 {
269 u64 val64;
270 u32 i;
271 enum vxge_hw_status status = VXGE_HW_OK;
272
273 hldev->legacy_reg = (struct vxge_hw_legacy_reg __iomem *)hldev->bar0;
274
275 hldev->toc_reg = __vxge_hw_device_toc_get(hldev->bar0);
276 if (hldev->toc_reg == NULL) {
277 status = VXGE_HW_FAIL;
278 goto exit;
279 }
280
281 val64 = readq(&hldev->toc_reg->toc_common_pointer);
282 hldev->common_reg =
283 (struct vxge_hw_common_reg __iomem *)(hldev->bar0 + val64);
284
285 val64 = readq(&hldev->toc_reg->toc_mrpcim_pointer);
286 hldev->mrpcim_reg =
287 (struct vxge_hw_mrpcim_reg __iomem *)(hldev->bar0 + val64);
288
289 for (i = 0; i < VXGE_HW_TITAN_SRPCIM_REG_SPACES; i++) {
290 val64 = readq(&hldev->toc_reg->toc_srpcim_pointer[i]);
291 hldev->srpcim_reg[i] =
292 (struct vxge_hw_srpcim_reg __iomem *)
293 (hldev->bar0 + val64);
294 }
295
296 for (i = 0; i < VXGE_HW_TITAN_VPMGMT_REG_SPACES; i++) {
297 val64 = readq(&hldev->toc_reg->toc_vpmgmt_pointer[i]);
298 hldev->vpmgmt_reg[i] =
299 (struct vxge_hw_vpmgmt_reg __iomem *)(hldev->bar0 + val64);
300 }
301
302 for (i = 0; i < VXGE_HW_TITAN_VPATH_REG_SPACES; i++) {
303 val64 = readq(&hldev->toc_reg->toc_vpath_pointer[i]);
304 hldev->vpath_reg[i] =
305 (struct vxge_hw_vpath_reg __iomem *)
306 (hldev->bar0 + val64);
307 }
308
309 val64 = readq(&hldev->toc_reg->toc_kdfc);
310
311 switch (VXGE_HW_TOC_GET_KDFC_INITIAL_BIR(val64)) {
312 case 0:
313 hldev->kdfc = (u8 __iomem *)(hldev->bar0 +
314 VXGE_HW_TOC_GET_KDFC_INITIAL_OFFSET(val64));
315 break;
316 case 2:
317 hldev->kdfc = (u8 __iomem *)(hldev->bar1 +
318 VXGE_HW_TOC_GET_KDFC_INITIAL_OFFSET(val64));
319 break;
320 case 4:
321 hldev->kdfc = (u8 __iomem *)(hldev->bar2 +
322 VXGE_HW_TOC_GET_KDFC_INITIAL_OFFSET(val64));
323 break;
324 default:
325 break;
326 }
327
328 status = __vxge_hw_device_vpath_reset_in_prog_check(
329 (u64 __iomem *)&hldev->common_reg->vpath_rst_in_prog);
330 exit:
331 return status;
332 }
333
334 /*
335 * __vxge_hw_device_id_get
336 * This routine returns sets the device id and revision numbers into the device
337 * structure
338 */
339 void __vxge_hw_device_id_get(struct __vxge_hw_device *hldev)
340 {
341 u64 val64;
342
343 val64 = readq(&hldev->common_reg->titan_asic_id);
344 hldev->device_id =
345 (u16)VXGE_HW_TITAN_ASIC_ID_GET_INITIAL_DEVICE_ID(val64);
346
347 hldev->major_revision =
348 (u8)VXGE_HW_TITAN_ASIC_ID_GET_INITIAL_MAJOR_REVISION(val64);
349
350 hldev->minor_revision =
351 (u8)VXGE_HW_TITAN_ASIC_ID_GET_INITIAL_MINOR_REVISION(val64);
352
353 return;
354 }
355
356 /*
357 * __vxge_hw_device_access_rights_get: Get Access Rights of the driver
358 * This routine returns the Access Rights of the driver
359 */
360 static u32
361 __vxge_hw_device_access_rights_get(u32 host_type, u32 func_id)
362 {
363 u32 access_rights = VXGE_HW_DEVICE_ACCESS_RIGHT_VPATH;
364
365 switch (host_type) {
366 case VXGE_HW_NO_MR_NO_SR_NORMAL_FUNCTION:
367 if (func_id == 0) {
368 access_rights |= VXGE_HW_DEVICE_ACCESS_RIGHT_MRPCIM |
369 VXGE_HW_DEVICE_ACCESS_RIGHT_SRPCIM;
370 }
371 break;
372 case VXGE_HW_MR_NO_SR_VH0_BASE_FUNCTION:
373 access_rights |= VXGE_HW_DEVICE_ACCESS_RIGHT_MRPCIM |
374 VXGE_HW_DEVICE_ACCESS_RIGHT_SRPCIM;
375 break;
376 case VXGE_HW_NO_MR_SR_VH0_FUNCTION0:
377 access_rights |= VXGE_HW_DEVICE_ACCESS_RIGHT_MRPCIM |
378 VXGE_HW_DEVICE_ACCESS_RIGHT_SRPCIM;
379 break;
380 case VXGE_HW_NO_MR_SR_VH0_VIRTUAL_FUNCTION:
381 case VXGE_HW_SR_VH_VIRTUAL_FUNCTION:
382 case VXGE_HW_MR_SR_VH0_INVALID_CONFIG:
383 break;
384 case VXGE_HW_SR_VH_FUNCTION0:
385 case VXGE_HW_VH_NORMAL_FUNCTION:
386 access_rights |= VXGE_HW_DEVICE_ACCESS_RIGHT_SRPCIM;
387 break;
388 }
389
390 return access_rights;
391 }
392 /*
393 * __vxge_hw_device_host_info_get
394 * This routine returns the host type assignments
395 */
396 void __vxge_hw_device_host_info_get(struct __vxge_hw_device *hldev)
397 {
398 u64 val64;
399 u32 i;
400
401 val64 = readq(&hldev->common_reg->host_type_assignments);
402
403 hldev->host_type =
404 (u32)VXGE_HW_HOST_TYPE_ASSIGNMENTS_GET_HOST_TYPE_ASSIGNMENTS(val64);
405
406 hldev->vpath_assignments = readq(&hldev->common_reg->vpath_assignments);
407
408 for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) {
409
410 if (!(hldev->vpath_assignments & vxge_mBIT(i)))
411 continue;
412
413 hldev->func_id =
414 __vxge_hw_vpath_func_id_get(i, hldev->vpmgmt_reg[i]);
415
416 hldev->access_rights = __vxge_hw_device_access_rights_get(
417 hldev->host_type, hldev->func_id);
418
419 hldev->first_vp_id = i;
420 break;
421 }
422
423 return;
424 }
425
426 /*
427 * __vxge_hw_verify_pci_e_info - Validate the pci-e link parameters such as
428 * link width and signalling rate.
429 */
430 static enum vxge_hw_status
431 __vxge_hw_verify_pci_e_info(struct __vxge_hw_device *hldev)
432 {
433 int exp_cap;
434 u16 lnk;
435
436 /* Get the negotiated link width and speed from PCI config space */
437 exp_cap = pci_find_capability(hldev->pdev, PCI_CAP_ID_EXP);
438 pci_read_config_word(hldev->pdev, exp_cap + PCI_EXP_LNKSTA, &lnk);
439
440 if ((lnk & PCI_EXP_LNKSTA_CLS) != 1)
441 return VXGE_HW_ERR_INVALID_PCI_INFO;
442
443 switch ((lnk & PCI_EXP_LNKSTA_NLW) >> 4) {
444 case PCIE_LNK_WIDTH_RESRV:
445 case PCIE_LNK_X1:
446 case PCIE_LNK_X2:
447 case PCIE_LNK_X4:
448 case PCIE_LNK_X8:
449 break;
450 default:
451 return VXGE_HW_ERR_INVALID_PCI_INFO;
452 }
453
454 return VXGE_HW_OK;
455 }
456
457 static enum vxge_hw_status
458 __vxge_hw_device_is_privilaged(struct __vxge_hw_device *hldev)
459 {
460 if ((hldev->host_type == VXGE_HW_NO_MR_NO_SR_NORMAL_FUNCTION ||
461 hldev->host_type == VXGE_HW_MR_NO_SR_VH0_BASE_FUNCTION ||
462 hldev->host_type == VXGE_HW_NO_MR_SR_VH0_FUNCTION0) &&
463 (hldev->func_id == 0))
464 return VXGE_HW_OK;
465 else
466 return VXGE_HW_ERR_PRIVILAGED_OPEARATION;
467 }
468
469 /*
470 * vxge_hw_wrr_rebalance - Rebalance the RX_WRR and KDFC_WRR calandars.
471 * Rebalance the RX_WRR and KDFC_WRR calandars.
472 */
473 static enum
474 vxge_hw_status vxge_hw_wrr_rebalance(struct __vxge_hw_device *hldev)
475 {
476 u64 val64;
477 u32 wrr_states[VXGE_HW_WEIGHTED_RR_SERVICE_STATES];
478 u32 i, j, how_often = 1;
479 enum vxge_hw_status status = VXGE_HW_OK;
480
481 status = __vxge_hw_device_is_privilaged(hldev);
482 if (status != VXGE_HW_OK)
483 goto exit;
484
485 /* Reset the priorities assigned to the WRR arbitration
486 phases for the receive traffic */
487 for (i = 0; i < VXGE_HW_WRR_RING_COUNT; i++)
488 writeq(0, ((&hldev->mrpcim_reg->rx_w_round_robin_0) + i));
489
490 /* Reset the transmit FIFO servicing calendar for FIFOs */
491 for (i = 0; i < VXGE_HW_WRR_FIFO_COUNT; i++) {
492 writeq(0, ((&hldev->mrpcim_reg->kdfc_w_round_robin_0) + i));
493 writeq(0, ((&hldev->mrpcim_reg->kdfc_w_round_robin_20) + i));
494 }
495
496 /* Assign WRR priority 0 for all FIFOs */
497 for (i = 1; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) {
498 writeq(VXGE_HW_KDFC_FIFO_0_CTRL_WRR_NUMBER(0),
499 ((&hldev->mrpcim_reg->kdfc_fifo_0_ctrl) + i));
500
501 writeq(VXGE_HW_KDFC_FIFO_17_CTRL_WRR_NUMBER(0),
502 ((&hldev->mrpcim_reg->kdfc_fifo_17_ctrl) + i));
503 }
504
505 /* Reset to service non-offload doorbells */
506 writeq(0, &hldev->mrpcim_reg->kdfc_entry_type_sel_0);
507 writeq(0, &hldev->mrpcim_reg->kdfc_entry_type_sel_1);
508
509 /* Set priority 0 to all receive queues */
510 writeq(0, &hldev->mrpcim_reg->rx_queue_priority_0);
511 writeq(0, &hldev->mrpcim_reg->rx_queue_priority_1);
512 writeq(0, &hldev->mrpcim_reg->rx_queue_priority_2);
513
514 /* Initialize all the slots as unused */
515 for (i = 0; i < VXGE_HW_WEIGHTED_RR_SERVICE_STATES; i++)
516 wrr_states[i] = -1;
517
518 /* Prepare the Fifo service states */
519 for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) {
520
521 if (!hldev->config.vp_config[i].min_bandwidth)
522 continue;
523
524 how_often = VXGE_HW_VPATH_BANDWIDTH_MAX /
525 hldev->config.vp_config[i].min_bandwidth;
526 if (how_often) {
527
528 for (j = 0; j < VXGE_HW_WRR_FIFO_SERVICE_STATES;) {
529 if (wrr_states[j] == -1) {
530 wrr_states[j] = i;
531 /* Make sure each fifo is serviced
532 * atleast once */
533 if (i == j)
534 j += VXGE_HW_MAX_VIRTUAL_PATHS;
535 else
536 j += how_often;
537 } else
538 j++;
539 }
540 }
541 }
542
543 /* Fill the unused slots with 0 */
544 for (j = 0; j < VXGE_HW_WEIGHTED_RR_SERVICE_STATES; j++) {
545 if (wrr_states[j] == -1)
546 wrr_states[j] = 0;
547 }
548
549 /* Assign WRR priority number for FIFOs */
550 for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) {
551 writeq(VXGE_HW_KDFC_FIFO_0_CTRL_WRR_NUMBER(i),
552 ((&hldev->mrpcim_reg->kdfc_fifo_0_ctrl) + i));
553
554 writeq(VXGE_HW_KDFC_FIFO_17_CTRL_WRR_NUMBER(i),
555 ((&hldev->mrpcim_reg->kdfc_fifo_17_ctrl) + i));
556 }
557
558 /* Modify the servicing algorithm applied to the 3 types of doorbells.
559 i.e, none-offload, message and offload */
560 writeq(VXGE_HW_KDFC_ENTRY_TYPE_SEL_0_NUMBER_0(0) |
561 VXGE_HW_KDFC_ENTRY_TYPE_SEL_0_NUMBER_1(0) |
562 VXGE_HW_KDFC_ENTRY_TYPE_SEL_0_NUMBER_2(0) |
563 VXGE_HW_KDFC_ENTRY_TYPE_SEL_0_NUMBER_3(0) |
564 VXGE_HW_KDFC_ENTRY_TYPE_SEL_0_NUMBER_4(1) |
565 VXGE_HW_KDFC_ENTRY_TYPE_SEL_0_NUMBER_5(0) |
566 VXGE_HW_KDFC_ENTRY_TYPE_SEL_0_NUMBER_6(0) |
567 VXGE_HW_KDFC_ENTRY_TYPE_SEL_0_NUMBER_7(0),
568 &hldev->mrpcim_reg->kdfc_entry_type_sel_0);
569
570 writeq(VXGE_HW_KDFC_ENTRY_TYPE_SEL_1_NUMBER_8(1),
571 &hldev->mrpcim_reg->kdfc_entry_type_sel_1);
572
573 for (i = 0, j = 0; i < VXGE_HW_WRR_FIFO_COUNT; i++) {
574
575 val64 = VXGE_HW_KDFC_W_ROUND_ROBIN_0_NUMBER_0(wrr_states[j++]);
576 val64 |= VXGE_HW_KDFC_W_ROUND_ROBIN_0_NUMBER_1(wrr_states[j++]);
577 val64 |= VXGE_HW_KDFC_W_ROUND_ROBIN_0_NUMBER_2(wrr_states[j++]);
578 val64 |= VXGE_HW_KDFC_W_ROUND_ROBIN_0_NUMBER_3(wrr_states[j++]);
579 val64 |= VXGE_HW_KDFC_W_ROUND_ROBIN_0_NUMBER_4(wrr_states[j++]);
580 val64 |= VXGE_HW_KDFC_W_ROUND_ROBIN_0_NUMBER_5(wrr_states[j++]);
581 val64 |= VXGE_HW_KDFC_W_ROUND_ROBIN_0_NUMBER_6(wrr_states[j++]);
582 val64 |= VXGE_HW_KDFC_W_ROUND_ROBIN_0_NUMBER_7(wrr_states[j++]);
583
584 writeq(val64, (&hldev->mrpcim_reg->kdfc_w_round_robin_0 + i));
585 writeq(val64, (&hldev->mrpcim_reg->kdfc_w_round_robin_20 + i));
586 }
587
588 /* Set up the priorities assigned to receive queues */
589 writeq(VXGE_HW_RX_QUEUE_PRIORITY_0_RX_Q_NUMBER_0(0) |
590 VXGE_HW_RX_QUEUE_PRIORITY_0_RX_Q_NUMBER_1(1) |
591 VXGE_HW_RX_QUEUE_PRIORITY_0_RX_Q_NUMBER_2(2) |
592 VXGE_HW_RX_QUEUE_PRIORITY_0_RX_Q_NUMBER_3(3) |
593 VXGE_HW_RX_QUEUE_PRIORITY_0_RX_Q_NUMBER_4(4) |
594 VXGE_HW_RX_QUEUE_PRIORITY_0_RX_Q_NUMBER_5(5) |
595 VXGE_HW_RX_QUEUE_PRIORITY_0_RX_Q_NUMBER_6(6) |
596 VXGE_HW_RX_QUEUE_PRIORITY_0_RX_Q_NUMBER_7(7),
597 &hldev->mrpcim_reg->rx_queue_priority_0);
598
599 writeq(VXGE_HW_RX_QUEUE_PRIORITY_1_RX_Q_NUMBER_8(8) |
600 VXGE_HW_RX_QUEUE_PRIORITY_1_RX_Q_NUMBER_9(9) |
601 VXGE_HW_RX_QUEUE_PRIORITY_1_RX_Q_NUMBER_10(10) |
602 VXGE_HW_RX_QUEUE_PRIORITY_1_RX_Q_NUMBER_11(11) |
603 VXGE_HW_RX_QUEUE_PRIORITY_1_RX_Q_NUMBER_12(12) |
604 VXGE_HW_RX_QUEUE_PRIORITY_1_RX_Q_NUMBER_13(13) |
605 VXGE_HW_RX_QUEUE_PRIORITY_1_RX_Q_NUMBER_14(14) |
606 VXGE_HW_RX_QUEUE_PRIORITY_1_RX_Q_NUMBER_15(15),
607 &hldev->mrpcim_reg->rx_queue_priority_1);
608
609 writeq(VXGE_HW_RX_QUEUE_PRIORITY_2_RX_Q_NUMBER_16(16),
610 &hldev->mrpcim_reg->rx_queue_priority_2);
611
612 /* Initialize all the slots as unused */
613 for (i = 0; i < VXGE_HW_WEIGHTED_RR_SERVICE_STATES; i++)
614 wrr_states[i] = -1;
615
616 /* Prepare the Ring service states */
617 for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) {
618
619 if (!hldev->config.vp_config[i].min_bandwidth)
620 continue;
621
622 how_often = VXGE_HW_VPATH_BANDWIDTH_MAX /
623 hldev->config.vp_config[i].min_bandwidth;
624
625 if (how_often) {
626 for (j = 0; j < VXGE_HW_WRR_RING_SERVICE_STATES;) {
627 if (wrr_states[j] == -1) {
628 wrr_states[j] = i;
629 /* Make sure each ring is
630 * serviced atleast once */
631 if (i == j)
632 j += VXGE_HW_MAX_VIRTUAL_PATHS;
633 else
634 j += how_often;
635 } else
636 j++;
637 }
638 }
639 }
640
641 /* Fill the unused slots with 0 */
642 for (j = 0; j < VXGE_HW_WEIGHTED_RR_SERVICE_STATES; j++) {
643 if (wrr_states[j] == -1)
644 wrr_states[j] = 0;
645 }
646
647 for (i = 0, j = 0; i < VXGE_HW_WRR_RING_COUNT; i++) {
648 val64 = VXGE_HW_RX_W_ROUND_ROBIN_0_RX_W_PRIORITY_SS_0(
649 wrr_states[j++]);
650 val64 |= VXGE_HW_RX_W_ROUND_ROBIN_0_RX_W_PRIORITY_SS_1(
651 wrr_states[j++]);
652 val64 |= VXGE_HW_RX_W_ROUND_ROBIN_0_RX_W_PRIORITY_SS_2(
653 wrr_states[j++]);
654 val64 |= VXGE_HW_RX_W_ROUND_ROBIN_0_RX_W_PRIORITY_SS_3(
655 wrr_states[j++]);
656 val64 |= VXGE_HW_RX_W_ROUND_ROBIN_0_RX_W_PRIORITY_SS_4(
657 wrr_states[j++]);
658 val64 |= VXGE_HW_RX_W_ROUND_ROBIN_0_RX_W_PRIORITY_SS_5(
659 wrr_states[j++]);
660 val64 |= VXGE_HW_RX_W_ROUND_ROBIN_0_RX_W_PRIORITY_SS_6(
661 wrr_states[j++]);
662 val64 |= VXGE_HW_RX_W_ROUND_ROBIN_0_RX_W_PRIORITY_SS_7(
663 wrr_states[j++]);
664
665 writeq(val64, ((&hldev->mrpcim_reg->rx_w_round_robin_0) + i));
666 }
667 exit:
668 return status;
669 }
670
671 /*
672 * __vxge_hw_device_initialize
673 * Initialize Titan-V hardware.
674 */
675 enum vxge_hw_status __vxge_hw_device_initialize(struct __vxge_hw_device *hldev)
676 {
677 enum vxge_hw_status status = VXGE_HW_OK;
678
679 /* Validate the pci-e link width and speed */
680 status = __vxge_hw_verify_pci_e_info(hldev);
681 if (status != VXGE_HW_OK)
682 goto exit;
683
684 vxge_hw_wrr_rebalance(hldev);
685 exit:
686 return status;
687 }
688
689 /**
690 * vxge_hw_device_hw_info_get - Get the hw information
691 * Returns the vpath mask that has the bits set for each vpath allocated
692 * for the driver, FW version information and the first mac addresse for
693 * each vpath
694 */
695 enum vxge_hw_status __devinit
696 vxge_hw_device_hw_info_get(void __iomem *bar0,
697 struct vxge_hw_device_hw_info *hw_info)
698 {
699 u32 i;
700 u64 val64;
701 struct vxge_hw_toc_reg __iomem *toc;
702 struct vxge_hw_mrpcim_reg __iomem *mrpcim_reg;
703 struct vxge_hw_common_reg __iomem *common_reg;
704 struct vxge_hw_vpath_reg __iomem *vpath_reg;
705 struct vxge_hw_vpmgmt_reg __iomem *vpmgmt_reg;
706 enum vxge_hw_status status;
707
708 memset(hw_info, 0, sizeof(struct vxge_hw_device_hw_info));
709
710 toc = __vxge_hw_device_toc_get(bar0);
711 if (toc == NULL) {
712 status = VXGE_HW_ERR_CRITICAL;
713 goto exit;
714 }
715
716 val64 = readq(&toc->toc_common_pointer);
717 common_reg = (struct vxge_hw_common_reg __iomem *)(bar0 + val64);
718
719 status = __vxge_hw_device_vpath_reset_in_prog_check(
720 (u64 __iomem *)&common_reg->vpath_rst_in_prog);
721 if (status != VXGE_HW_OK)
722 goto exit;
723
724 hw_info->vpath_mask = readq(&common_reg->vpath_assignments);
725
726 val64 = readq(&common_reg->host_type_assignments);
727
728 hw_info->host_type =
729 (u32)VXGE_HW_HOST_TYPE_ASSIGNMENTS_GET_HOST_TYPE_ASSIGNMENTS(val64);
730
731 for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) {
732
733 if (!((hw_info->vpath_mask) & vxge_mBIT(i)))
734 continue;
735
736 val64 = readq(&toc->toc_vpmgmt_pointer[i]);
737
738 vpmgmt_reg = (struct vxge_hw_vpmgmt_reg __iomem *)
739 (bar0 + val64);
740
741 hw_info->func_id = __vxge_hw_vpath_func_id_get(i, vpmgmt_reg);
742 if (__vxge_hw_device_access_rights_get(hw_info->host_type,
743 hw_info->func_id) &
744 VXGE_HW_DEVICE_ACCESS_RIGHT_MRPCIM) {
745
746 val64 = readq(&toc->toc_mrpcim_pointer);
747
748 mrpcim_reg = (struct vxge_hw_mrpcim_reg __iomem *)
749 (bar0 + val64);
750
751 writeq(0, &mrpcim_reg->xgmac_gen_fw_memo_mask);
752 wmb();
753 }
754
755 val64 = readq(&toc->toc_vpath_pointer[i]);
756
757 vpath_reg = (struct vxge_hw_vpath_reg __iomem *)(bar0 + val64);
758
759 hw_info->function_mode =
760 __vxge_hw_vpath_pci_func_mode_get(i, vpath_reg);
761
762 status = __vxge_hw_vpath_fw_ver_get(i, vpath_reg, hw_info);
763 if (status != VXGE_HW_OK)
764 goto exit;
765
766 status = __vxge_hw_vpath_card_info_get(i, vpath_reg, hw_info);
767 if (status != VXGE_HW_OK)
768 goto exit;
769
770 break;
771 }
772
773 for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) {
774
775 if (!((hw_info->vpath_mask) & vxge_mBIT(i)))
776 continue;
777
778 val64 = readq(&toc->toc_vpath_pointer[i]);
779 vpath_reg = (struct vxge_hw_vpath_reg __iomem *)(bar0 + val64);
780
781 status = __vxge_hw_vpath_addr_get(i, vpath_reg,
782 hw_info->mac_addrs[i],
783 hw_info->mac_addr_masks[i]);
784 if (status != VXGE_HW_OK)
785 goto exit;
786 }
787 exit:
788 return status;
789 }
790
791 /*
792 * vxge_hw_device_initialize - Initialize Titan device.
793 * Initialize Titan device. Note that all the arguments of this public API
794 * are 'IN', including @hldev. Driver cooperates with
795 * OS to find new Titan device, locate its PCI and memory spaces.
796 *
797 * When done, the driver allocates sizeof(struct __vxge_hw_device) bytes for HW
798 * to enable the latter to perform Titan hardware initialization.
799 */
800 enum vxge_hw_status __devinit
801 vxge_hw_device_initialize(
802 struct __vxge_hw_device **devh,
803 struct vxge_hw_device_attr *attr,
804 struct vxge_hw_device_config *device_config)
805 {
806 u32 i;
807 u32 nblocks = 0;
808 struct __vxge_hw_device *hldev = NULL;
809 enum vxge_hw_status status = VXGE_HW_OK;
810
811 status = __vxge_hw_device_config_check(device_config);
812 if (status != VXGE_HW_OK)
813 goto exit;
814
815 hldev = (struct __vxge_hw_device *)
816 vmalloc(sizeof(struct __vxge_hw_device));
817 if (hldev == NULL) {
818 status = VXGE_HW_ERR_OUT_OF_MEMORY;
819 goto exit;
820 }
821
822 memset(hldev, 0, sizeof(struct __vxge_hw_device));
823 hldev->magic = VXGE_HW_DEVICE_MAGIC;
824
825 vxge_hw_device_debug_set(hldev, VXGE_ERR, VXGE_COMPONENT_ALL);
826
827 /* apply config */
828 memcpy(&hldev->config, device_config,
829 sizeof(struct vxge_hw_device_config));
830
831 hldev->bar0 = attr->bar0;
832 hldev->bar1 = attr->bar1;
833 hldev->bar2 = attr->bar2;
834 hldev->pdev = attr->pdev;
835
836 hldev->uld_callbacks.link_up = attr->uld_callbacks.link_up;
837 hldev->uld_callbacks.link_down = attr->uld_callbacks.link_down;
838 hldev->uld_callbacks.crit_err = attr->uld_callbacks.crit_err;
839
840 __vxge_hw_device_pci_e_init(hldev);
841
842 status = __vxge_hw_device_reg_addr_get(hldev);
843 if (status != VXGE_HW_OK)
844 goto exit;
845 __vxge_hw_device_id_get(hldev);
846
847 __vxge_hw_device_host_info_get(hldev);
848
849 /* Incrementing for stats blocks */
850 nblocks++;
851
852 for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) {
853
854 if (!(hldev->vpath_assignments & vxge_mBIT(i)))
855 continue;
856
857 if (device_config->vp_config[i].ring.enable ==
858 VXGE_HW_RING_ENABLE)
859 nblocks += device_config->vp_config[i].ring.ring_blocks;
860
861 if (device_config->vp_config[i].fifo.enable ==
862 VXGE_HW_FIFO_ENABLE)
863 nblocks += device_config->vp_config[i].fifo.fifo_blocks;
864 nblocks++;
865 }
866
867 if (__vxge_hw_blockpool_create(hldev,
868 &hldev->block_pool,
869 device_config->dma_blockpool_initial + nblocks,
870 device_config->dma_blockpool_max + nblocks) != VXGE_HW_OK) {
871
872 vxge_hw_device_terminate(hldev);
873 status = VXGE_HW_ERR_OUT_OF_MEMORY;
874 goto exit;
875 }
876
877 status = __vxge_hw_device_initialize(hldev);
878
879 if (status != VXGE_HW_OK) {
880 vxge_hw_device_terminate(hldev);
881 goto exit;
882 }
883
884 *devh = hldev;
885 exit:
886 return status;
887 }
888
889 /*
890 * vxge_hw_device_terminate - Terminate Titan device.
891 * Terminate HW device.
892 */
893 void
894 vxge_hw_device_terminate(struct __vxge_hw_device *hldev)
895 {
896 vxge_assert(hldev->magic == VXGE_HW_DEVICE_MAGIC);
897
898 hldev->magic = VXGE_HW_DEVICE_DEAD;
899 __vxge_hw_blockpool_destroy(&hldev->block_pool);
900 vfree(hldev);
901 }
902
903 /*
904 * vxge_hw_device_stats_get - Get the device hw statistics.
905 * Returns the vpath h/w stats for the device.
906 */
907 enum vxge_hw_status
908 vxge_hw_device_stats_get(struct __vxge_hw_device *hldev,
909 struct vxge_hw_device_stats_hw_info *hw_stats)
910 {
911 u32 i;
912 enum vxge_hw_status status = VXGE_HW_OK;
913
914 for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) {
915
916 if (!(hldev->vpaths_deployed & vxge_mBIT(i)) ||
917 (hldev->virtual_paths[i].vp_open ==
918 VXGE_HW_VP_NOT_OPEN))
919 continue;
920
921 memcpy(hldev->virtual_paths[i].hw_stats_sav,
922 hldev->virtual_paths[i].hw_stats,
923 sizeof(struct vxge_hw_vpath_stats_hw_info));
924
925 status = __vxge_hw_vpath_stats_get(
926 &hldev->virtual_paths[i],
927 hldev->virtual_paths[i].hw_stats);
928 }
929
930 memcpy(hw_stats, &hldev->stats.hw_dev_info_stats,
931 sizeof(struct vxge_hw_device_stats_hw_info));
932
933 return status;
934 }
935
936 /*
937 * vxge_hw_driver_stats_get - Get the device sw statistics.
938 * Returns the vpath s/w stats for the device.
939 */
940 enum vxge_hw_status vxge_hw_driver_stats_get(
941 struct __vxge_hw_device *hldev,
942 struct vxge_hw_device_stats_sw_info *sw_stats)
943 {
944 enum vxge_hw_status status = VXGE_HW_OK;
945
946 memcpy(sw_stats, &hldev->stats.sw_dev_info_stats,
947 sizeof(struct vxge_hw_device_stats_sw_info));
948
949 return status;
950 }
951
952 /*
953 * vxge_hw_mrpcim_stats_access - Access the statistics from the given location
954 * and offset and perform an operation
955 * Get the statistics from the given location and offset.
956 */
957 enum vxge_hw_status
958 vxge_hw_mrpcim_stats_access(struct __vxge_hw_device *hldev,
959 u32 operation, u32 location, u32 offset, u64 *stat)
960 {
961 u64 val64;
962 enum vxge_hw_status status = VXGE_HW_OK;
963
964 status = __vxge_hw_device_is_privilaged(hldev);
965 if (status != VXGE_HW_OK)
966 goto exit;
967
968 val64 = VXGE_HW_XMAC_STATS_SYS_CMD_OP(operation) |
969 VXGE_HW_XMAC_STATS_SYS_CMD_STROBE |
970 VXGE_HW_XMAC_STATS_SYS_CMD_LOC_SEL(location) |
971 VXGE_HW_XMAC_STATS_SYS_CMD_OFFSET_SEL(offset);
972
973 status = __vxge_hw_pio_mem_write64(val64,
974 &hldev->mrpcim_reg->xmac_stats_sys_cmd,
975 VXGE_HW_XMAC_STATS_SYS_CMD_STROBE,
976 hldev->config.device_poll_millis);
977
978 if ((status == VXGE_HW_OK) && (operation == VXGE_HW_STATS_OP_READ))
979 *stat = readq(&hldev->mrpcim_reg->xmac_stats_sys_data);
980 else
981 *stat = 0;
982 exit:
983 return status;
984 }
985
986 /*
987 * vxge_hw_device_xmac_aggr_stats_get - Get the Statistics on aggregate port
988 * Get the Statistics on aggregate port
989 */
990 enum vxge_hw_status
991 vxge_hw_device_xmac_aggr_stats_get(struct __vxge_hw_device *hldev, u32 port,
992 struct vxge_hw_xmac_aggr_stats *aggr_stats)
993 {
994 u64 *val64;
995 int i;
996 u32 offset = VXGE_HW_STATS_AGGRn_OFFSET;
997 enum vxge_hw_status status = VXGE_HW_OK;
998
999 val64 = (u64 *)aggr_stats;
1000
1001 status = __vxge_hw_device_is_privilaged(hldev);
1002 if (status != VXGE_HW_OK)
1003 goto exit;
1004
1005 for (i = 0; i < sizeof(struct vxge_hw_xmac_aggr_stats) / 8; i++) {
1006 status = vxge_hw_mrpcim_stats_access(hldev,
1007 VXGE_HW_STATS_OP_READ,
1008 VXGE_HW_STATS_LOC_AGGR,
1009 ((offset + (104 * port)) >> 3), val64);
1010 if (status != VXGE_HW_OK)
1011 goto exit;
1012
1013 offset += 8;
1014 val64++;
1015 }
1016 exit:
1017 return status;
1018 }
1019
1020 /*
1021 * vxge_hw_device_xmac_port_stats_get - Get the Statistics on a port
1022 * Get the Statistics on port
1023 */
1024 enum vxge_hw_status
1025 vxge_hw_device_xmac_port_stats_get(struct __vxge_hw_device *hldev, u32 port,
1026 struct vxge_hw_xmac_port_stats *port_stats)
1027 {
1028 u64 *val64;
1029 enum vxge_hw_status status = VXGE_HW_OK;
1030 int i;
1031 u32 offset = 0x0;
1032 val64 = (u64 *) port_stats;
1033
1034 status = __vxge_hw_device_is_privilaged(hldev);
1035 if (status != VXGE_HW_OK)
1036 goto exit;
1037
1038 for (i = 0; i < sizeof(struct vxge_hw_xmac_port_stats) / 8; i++) {
1039 status = vxge_hw_mrpcim_stats_access(hldev,
1040 VXGE_HW_STATS_OP_READ,
1041 VXGE_HW_STATS_LOC_AGGR,
1042 ((offset + (608 * port)) >> 3), val64);
1043 if (status != VXGE_HW_OK)
1044 goto exit;
1045
1046 offset += 8;
1047 val64++;
1048 }
1049
1050 exit:
1051 return status;
1052 }
1053
1054 /*
1055 * vxge_hw_device_xmac_stats_get - Get the XMAC Statistics
1056 * Get the XMAC Statistics
1057 */
1058 enum vxge_hw_status
1059 vxge_hw_device_xmac_stats_get(struct __vxge_hw_device *hldev,
1060 struct vxge_hw_xmac_stats *xmac_stats)
1061 {
1062 enum vxge_hw_status status = VXGE_HW_OK;
1063 u32 i;
1064
1065 status = vxge_hw_device_xmac_aggr_stats_get(hldev,
1066 0, &xmac_stats->aggr_stats[0]);
1067
1068 if (status != VXGE_HW_OK)
1069 goto exit;
1070
1071 status = vxge_hw_device_xmac_aggr_stats_get(hldev,
1072 1, &xmac_stats->aggr_stats[1]);
1073 if (status != VXGE_HW_OK)
1074 goto exit;
1075
1076 for (i = 0; i <= VXGE_HW_MAC_MAX_MAC_PORT_ID; i++) {
1077
1078 status = vxge_hw_device_xmac_port_stats_get(hldev,
1079 i, &xmac_stats->port_stats[i]);
1080 if (status != VXGE_HW_OK)
1081 goto exit;
1082 }
1083
1084 for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) {
1085
1086 if (!(hldev->vpaths_deployed & vxge_mBIT(i)))
1087 continue;
1088
1089 status = __vxge_hw_vpath_xmac_tx_stats_get(
1090 &hldev->virtual_paths[i],
1091 &xmac_stats->vpath_tx_stats[i]);
1092 if (status != VXGE_HW_OK)
1093 goto exit;
1094
1095 status = __vxge_hw_vpath_xmac_rx_stats_get(
1096 &hldev->virtual_paths[i],
1097 &xmac_stats->vpath_rx_stats[i]);
1098 if (status != VXGE_HW_OK)
1099 goto exit;
1100 }
1101 exit:
1102 return status;
1103 }
1104
1105 /*
1106 * vxge_hw_device_debug_set - Set the debug module, level and timestamp
1107 * This routine is used to dynamically change the debug output
1108 */
1109 void vxge_hw_device_debug_set(struct __vxge_hw_device *hldev,
1110 enum vxge_debug_level level, u32 mask)
1111 {
1112 if (hldev == NULL)
1113 return;
1114
1115 #if defined(VXGE_DEBUG_TRACE_MASK) || \
1116 defined(VXGE_DEBUG_ERR_MASK)
1117 hldev->debug_module_mask = mask;
1118 hldev->debug_level = level;
1119 #endif
1120
1121 #if defined(VXGE_DEBUG_ERR_MASK)
1122 hldev->level_err = level & VXGE_ERR;
1123 #endif
1124
1125 #if defined(VXGE_DEBUG_TRACE_MASK)
1126 hldev->level_trace = level & VXGE_TRACE;
1127 #endif
1128 }
1129
1130 /*
1131 * vxge_hw_device_error_level_get - Get the error level
1132 * This routine returns the current error level set
1133 */
1134 u32 vxge_hw_device_error_level_get(struct __vxge_hw_device *hldev)
1135 {
1136 #if defined(VXGE_DEBUG_ERR_MASK)
1137 if (hldev == NULL)
1138 return VXGE_ERR;
1139 else
1140 return hldev->level_err;
1141 #else
1142 return 0;
1143 #endif
1144 }
1145
1146 /*
1147 * vxge_hw_device_trace_level_get - Get the trace level
1148 * This routine returns the current trace level set
1149 */
1150 u32 vxge_hw_device_trace_level_get(struct __vxge_hw_device *hldev)
1151 {
1152 #if defined(VXGE_DEBUG_TRACE_MASK)
1153 if (hldev == NULL)
1154 return VXGE_TRACE;
1155 else
1156 return hldev->level_trace;
1157 #else
1158 return 0;
1159 #endif
1160 }
1161 /*
1162 * vxge_hw_device_debug_mask_get - Get the debug mask
1163 * This routine returns the current debug mask set
1164 */
1165 u32 vxge_hw_device_debug_mask_get(struct __vxge_hw_device *hldev)
1166 {
1167 #if defined(VXGE_DEBUG_TRACE_MASK) || defined(VXGE_DEBUG_ERR_MASK)
1168 if (hldev == NULL)
1169 return 0;
1170 return hldev->debug_module_mask;
1171 #else
1172 return 0;
1173 #endif
1174 }
1175
1176 /*
1177 * vxge_hw_getpause_data -Pause frame frame generation and reception.
1178 * Returns the Pause frame generation and reception capability of the NIC.
1179 */
1180 enum vxge_hw_status vxge_hw_device_getpause_data(struct __vxge_hw_device *hldev,
1181 u32 port, u32 *tx, u32 *rx)
1182 {
1183 u64 val64;
1184 enum vxge_hw_status status = VXGE_HW_OK;
1185
1186 if ((hldev == NULL) || (hldev->magic != VXGE_HW_DEVICE_MAGIC)) {
1187 status = VXGE_HW_ERR_INVALID_DEVICE;
1188 goto exit;
1189 }
1190
1191 if (port > VXGE_HW_MAC_MAX_MAC_PORT_ID) {
1192 status = VXGE_HW_ERR_INVALID_PORT;
1193 goto exit;
1194 }
1195
1196 if (!(hldev->access_rights & VXGE_HW_DEVICE_ACCESS_RIGHT_MRPCIM)) {
1197 status = VXGE_HW_ERR_PRIVILAGED_OPEARATION;
1198 goto exit;
1199 }
1200
1201 val64 = readq(&hldev->mrpcim_reg->rxmac_pause_cfg_port[port]);
1202 if (val64 & VXGE_HW_RXMAC_PAUSE_CFG_PORT_GEN_EN)
1203 *tx = 1;
1204 if (val64 & VXGE_HW_RXMAC_PAUSE_CFG_PORT_RCV_EN)
1205 *rx = 1;
1206 exit:
1207 return status;
1208 }
1209
1210 /*
1211 * vxge_hw_device_setpause_data - set/reset pause frame generation.
1212 * It can be used to set or reset Pause frame generation or reception
1213 * support of the NIC.
1214 */
1215
1216 enum vxge_hw_status vxge_hw_device_setpause_data(struct __vxge_hw_device *hldev,
1217 u32 port, u32 tx, u32 rx)
1218 {
1219 u64 val64;
1220 enum vxge_hw_status status = VXGE_HW_OK;
1221
1222 if ((hldev == NULL) || (hldev->magic != VXGE_HW_DEVICE_MAGIC)) {
1223 status = VXGE_HW_ERR_INVALID_DEVICE;
1224 goto exit;
1225 }
1226
1227 if (port > VXGE_HW_MAC_MAX_MAC_PORT_ID) {
1228 status = VXGE_HW_ERR_INVALID_PORT;
1229 goto exit;
1230 }
1231
1232 status = __vxge_hw_device_is_privilaged(hldev);
1233 if (status != VXGE_HW_OK)
1234 goto exit;
1235
1236 val64 = readq(&hldev->mrpcim_reg->rxmac_pause_cfg_port[port]);
1237 if (tx)
1238 val64 |= VXGE_HW_RXMAC_PAUSE_CFG_PORT_GEN_EN;
1239 else
1240 val64 &= ~VXGE_HW_RXMAC_PAUSE_CFG_PORT_GEN_EN;
1241 if (rx)
1242 val64 |= VXGE_HW_RXMAC_PAUSE_CFG_PORT_RCV_EN;
1243 else
1244 val64 &= ~VXGE_HW_RXMAC_PAUSE_CFG_PORT_RCV_EN;
1245
1246 writeq(val64, &hldev->mrpcim_reg->rxmac_pause_cfg_port[port]);
1247 exit:
1248 return status;
1249 }
1250
1251 u16 vxge_hw_device_link_width_get(struct __vxge_hw_device *hldev)
1252 {
1253 int link_width, exp_cap;
1254 u16 lnk;
1255
1256 exp_cap = pci_find_capability(hldev->pdev, PCI_CAP_ID_EXP);
1257 pci_read_config_word(hldev->pdev, exp_cap + PCI_EXP_LNKSTA, &lnk);
1258 link_width = (lnk & VXGE_HW_PCI_EXP_LNKCAP_LNK_WIDTH) >> 4;
1259 return link_width;
1260 }
1261
1262 /*
1263 * __vxge_hw_ring_block_memblock_idx - Return the memblock index
1264 * This function returns the index of memory block
1265 */
1266 static inline u32
1267 __vxge_hw_ring_block_memblock_idx(u8 *block)
1268 {
1269 return (u32)*((u64 *)(block + VXGE_HW_RING_MEMBLOCK_IDX_OFFSET));
1270 }
1271
1272 /*
1273 * __vxge_hw_ring_block_memblock_idx_set - Sets the memblock index
1274 * This function sets index to a memory block
1275 */
1276 static inline void
1277 __vxge_hw_ring_block_memblock_idx_set(u8 *block, u32 memblock_idx)
1278 {
1279 *((u64 *)(block + VXGE_HW_RING_MEMBLOCK_IDX_OFFSET)) = memblock_idx;
1280 }
1281
1282 /*
1283 * __vxge_hw_ring_block_next_pointer_set - Sets the next block pointer
1284 * in RxD block
1285 * Sets the next block pointer in RxD block
1286 */
1287 static inline void
1288 __vxge_hw_ring_block_next_pointer_set(u8 *block, dma_addr_t dma_next)
1289 {
1290 *((u64 *)(block + VXGE_HW_RING_NEXT_BLOCK_POINTER_OFFSET)) = dma_next;
1291 }
1292
1293 /*
1294 * __vxge_hw_ring_first_block_address_get - Returns the dma address of the
1295 * first block
1296 * Returns the dma address of the first RxD block
1297 */
1298 u64 __vxge_hw_ring_first_block_address_get(struct __vxge_hw_ring *ring)
1299 {
1300 struct vxge_hw_mempool_dma *dma_object;
1301
1302 dma_object = ring->mempool->memblocks_dma_arr;
1303 vxge_assert(dma_object != NULL);
1304
1305 return dma_object->addr;
1306 }
1307
1308 /*
1309 * __vxge_hw_ring_item_dma_addr - Return the dma address of an item
1310 * This function returns the dma address of a given item
1311 */
1312 static dma_addr_t __vxge_hw_ring_item_dma_addr(struct vxge_hw_mempool *mempoolh,
1313 void *item)
1314 {
1315 u32 memblock_idx;
1316 void *memblock;
1317 struct vxge_hw_mempool_dma *memblock_dma_object;
1318 ptrdiff_t dma_item_offset;
1319
1320 /* get owner memblock index */
1321 memblock_idx = __vxge_hw_ring_block_memblock_idx(item);
1322
1323 /* get owner memblock by memblock index */
1324 memblock = mempoolh->memblocks_arr[memblock_idx];
1325
1326 /* get memblock DMA object by memblock index */
1327 memblock_dma_object = mempoolh->memblocks_dma_arr + memblock_idx;
1328
1329 /* calculate offset in the memblock of this item */
1330 dma_item_offset = (u8 *)item - (u8 *)memblock;
1331
1332 return memblock_dma_object->addr + dma_item_offset;
1333 }
1334
1335 /*
1336 * __vxge_hw_ring_rxdblock_link - Link the RxD blocks
1337 * This function returns the dma address of a given item
1338 */
1339 static void __vxge_hw_ring_rxdblock_link(struct vxge_hw_mempool *mempoolh,
1340 struct __vxge_hw_ring *ring, u32 from,
1341 u32 to)
1342 {
1343 u8 *to_item , *from_item;
1344 dma_addr_t to_dma;
1345
1346 /* get "from" RxD block */
1347 from_item = mempoolh->items_arr[from];
1348 vxge_assert(from_item);
1349
1350 /* get "to" RxD block */
1351 to_item = mempoolh->items_arr[to];
1352 vxge_assert(to_item);
1353
1354 /* return address of the beginning of previous RxD block */
1355 to_dma = __vxge_hw_ring_item_dma_addr(mempoolh, to_item);
1356
1357 /* set next pointer for this RxD block to point on
1358 * previous item's DMA start address */
1359 __vxge_hw_ring_block_next_pointer_set(from_item, to_dma);
1360 }
1361
1362 /*
1363 * __vxge_hw_ring_mempool_item_alloc - Allocate List blocks for RxD
1364 * block callback
1365 * This function is callback passed to __vxge_hw_mempool_create to create memory
1366 * pool for RxD block
1367 */
1368 static void
1369 __vxge_hw_ring_mempool_item_alloc(struct vxge_hw_mempool *mempoolh,
1370 u32 memblock_index,
1371 struct vxge_hw_mempool_dma *dma_object,
1372 u32 index, u32 is_last)
1373 {
1374 u32 i;
1375 void *item = mempoolh->items_arr[index];
1376 struct __vxge_hw_ring *ring =
1377 (struct __vxge_hw_ring *)mempoolh->userdata;
1378
1379 /* format rxds array */
1380 for (i = 0; i < ring->rxds_per_block; i++) {
1381 void *rxdblock_priv;
1382 void *uld_priv;
1383 struct vxge_hw_ring_rxd_1 *rxdp;
1384
1385 u32 reserve_index = ring->channel.reserve_ptr -
1386 (index * ring->rxds_per_block + i + 1);
1387 u32 memblock_item_idx;
1388
1389 ring->channel.reserve_arr[reserve_index] = ((u8 *)item) +
1390 i * ring->rxd_size;
1391
1392 /* Note: memblock_item_idx is index of the item within
1393 * the memblock. For instance, in case of three RxD-blocks
1394 * per memblock this value can be 0, 1 or 2. */
1395 rxdblock_priv = __vxge_hw_mempool_item_priv(mempoolh,
1396 memblock_index, item,
1397 &memblock_item_idx);
1398
1399 rxdp = (struct vxge_hw_ring_rxd_1 *)
1400 ring->channel.reserve_arr[reserve_index];
1401
1402 uld_priv = ((u8 *)rxdblock_priv + ring->rxd_priv_size * i);
1403
1404 /* pre-format Host_Control */
1405 rxdp->host_control = (u64)(size_t)uld_priv;
1406 }
1407
1408 __vxge_hw_ring_block_memblock_idx_set(item, memblock_index);
1409
1410 if (is_last) {
1411 /* link last one with first one */
1412 __vxge_hw_ring_rxdblock_link(mempoolh, ring, index, 0);
1413 }
1414
1415 if (index > 0) {
1416 /* link this RxD block with previous one */
1417 __vxge_hw_ring_rxdblock_link(mempoolh, ring, index - 1, index);
1418 }
1419
1420 return;
1421 }
1422
1423 /*
1424 * __vxge_hw_ring_initial_replenish - Initial replenish of RxDs
1425 * This function replenishes the RxDs from reserve array to work array
1426 */
1427 enum vxge_hw_status
1428 vxge_hw_ring_replenish(struct __vxge_hw_ring *ring, u16 min_flag)
1429 {
1430 void *rxd;
1431 int i = 0;
1432 struct __vxge_hw_channel *channel;
1433 enum vxge_hw_status status = VXGE_HW_OK;
1434
1435 channel = &ring->channel;
1436
1437 while (vxge_hw_channel_dtr_count(channel) > 0) {
1438
1439 status = vxge_hw_ring_rxd_reserve(ring, &rxd);
1440
1441 vxge_assert(status == VXGE_HW_OK);
1442
1443 if (ring->rxd_init) {
1444 status = ring->rxd_init(rxd, channel->userdata);
1445 if (status != VXGE_HW_OK) {
1446 vxge_hw_ring_rxd_free(ring, rxd);
1447 goto exit;
1448 }
1449 }
1450
1451 vxge_hw_ring_rxd_post(ring, rxd);
1452 if (min_flag) {
1453 i++;
1454 if (i == VXGE_HW_RING_MIN_BUFF_ALLOCATION)
1455 break;
1456 }
1457 }
1458 status = VXGE_HW_OK;
1459 exit:
1460 return status;
1461 }
1462
1463 /*
1464 * __vxge_hw_ring_create - Create a Ring
1465 * This function creates Ring and initializes it.
1466 *
1467 */
1468 enum vxge_hw_status
1469 __vxge_hw_ring_create(struct __vxge_hw_vpath_handle *vp,
1470 struct vxge_hw_ring_attr *attr)
1471 {
1472 enum vxge_hw_status status = VXGE_HW_OK;
1473 struct __vxge_hw_ring *ring;
1474 u32 ring_length;
1475 struct vxge_hw_ring_config *config;
1476 struct __vxge_hw_device *hldev;
1477 u32 vp_id;
1478 struct vxge_hw_mempool_cbs ring_mp_callback;
1479
1480 if ((vp == NULL) || (attr == NULL)) {
1481 status = VXGE_HW_FAIL;
1482 goto exit;
1483 }
1484
1485 hldev = vp->vpath->hldev;
1486 vp_id = vp->vpath->vp_id;
1487
1488 config = &hldev->config.vp_config[vp_id].ring;
1489
1490 ring_length = config->ring_blocks *
1491 vxge_hw_ring_rxds_per_block_get(config->buffer_mode);
1492
1493 ring = (struct __vxge_hw_ring *)__vxge_hw_channel_allocate(vp,
1494 VXGE_HW_CHANNEL_TYPE_RING,
1495 ring_length,
1496 attr->per_rxd_space,
1497 attr->userdata);
1498
1499 if (ring == NULL) {
1500 status = VXGE_HW_ERR_OUT_OF_MEMORY;
1501 goto exit;
1502 }
1503
1504 vp->vpath->ringh = ring;
1505 ring->vp_id = vp_id;
1506 ring->vp_reg = vp->vpath->vp_reg;
1507 ring->common_reg = hldev->common_reg;
1508 ring->stats = &vp->vpath->sw_stats->ring_stats;
1509 ring->config = config;
1510 ring->callback = attr->callback;
1511 ring->rxd_init = attr->rxd_init;
1512 ring->rxd_term = attr->rxd_term;
1513 ring->buffer_mode = config->buffer_mode;
1514 ring->rxds_limit = config->rxds_limit;
1515
1516 ring->rxd_size = vxge_hw_ring_rxd_size_get(config->buffer_mode);
1517 ring->rxd_priv_size =
1518 sizeof(struct __vxge_hw_ring_rxd_priv) + attr->per_rxd_space;
1519 ring->per_rxd_space = attr->per_rxd_space;
1520
1521 ring->rxd_priv_size =
1522 ((ring->rxd_priv_size + VXGE_CACHE_LINE_SIZE - 1) /
1523 VXGE_CACHE_LINE_SIZE) * VXGE_CACHE_LINE_SIZE;
1524
1525 /* how many RxDs can fit into one block. Depends on configured
1526 * buffer_mode. */
1527 ring->rxds_per_block =
1528 vxge_hw_ring_rxds_per_block_get(config->buffer_mode);
1529
1530 /* calculate actual RxD block private size */
1531 ring->rxdblock_priv_size = ring->rxd_priv_size * ring->rxds_per_block;
1532 ring_mp_callback.item_func_alloc = __vxge_hw_ring_mempool_item_alloc;
1533 ring->mempool = __vxge_hw_mempool_create(hldev,
1534 VXGE_HW_BLOCK_SIZE,
1535 VXGE_HW_BLOCK_SIZE,
1536 ring->rxdblock_priv_size,
1537 ring->config->ring_blocks,
1538 ring->config->ring_blocks,
1539 &ring_mp_callback,
1540 ring);
1541
1542 if (ring->mempool == NULL) {
1543 __vxge_hw_ring_delete(vp);
1544 return VXGE_HW_ERR_OUT_OF_MEMORY;
1545 }
1546
1547 status = __vxge_hw_channel_initialize(&ring->channel);
1548 if (status != VXGE_HW_OK) {
1549 __vxge_hw_ring_delete(vp);
1550 goto exit;
1551 }
1552
1553 /* Note:
1554 * Specifying rxd_init callback means two things:
1555 * 1) rxds need to be initialized by driver at channel-open time;
1556 * 2) rxds need to be posted at channel-open time
1557 * (that's what the initial_replenish() below does)
1558 * Currently we don't have a case when the 1) is done without the 2).
1559 */
1560 if (ring->rxd_init) {
1561 status = vxge_hw_ring_replenish(ring, 1);
1562 if (status != VXGE_HW_OK) {
1563 __vxge_hw_ring_delete(vp);
1564 goto exit;
1565 }
1566 }
1567
1568 /* initial replenish will increment the counter in its post() routine,
1569 * we have to reset it */
1570 ring->stats->common_stats.usage_cnt = 0;
1571 exit:
1572 return status;
1573 }
1574
1575 /*
1576 * __vxge_hw_ring_abort - Returns the RxD
1577 * This function terminates the RxDs of ring
1578 */
1579 enum vxge_hw_status __vxge_hw_ring_abort(struct __vxge_hw_ring *ring)
1580 {
1581 void *rxdh;
1582 struct __vxge_hw_channel *channel;
1583
1584 channel = &ring->channel;
1585
1586 for (;;) {
1587 vxge_hw_channel_dtr_try_complete(channel, &rxdh);
1588
1589 if (rxdh == NULL)
1590 break;
1591
1592 vxge_hw_channel_dtr_complete(channel);
1593
1594 if (ring->rxd_term)
1595 ring->rxd_term(rxdh, VXGE_HW_RXD_STATE_POSTED,
1596 channel->userdata);
1597
1598 vxge_hw_channel_dtr_free(channel, rxdh);
1599 }
1600
1601 return VXGE_HW_OK;
1602 }
1603
1604 /*
1605 * __vxge_hw_ring_reset - Resets the ring
1606 * This function resets the ring during vpath reset operation
1607 */
1608 enum vxge_hw_status __vxge_hw_ring_reset(struct __vxge_hw_ring *ring)
1609 {
1610 enum vxge_hw_status status = VXGE_HW_OK;
1611 struct __vxge_hw_channel *channel;
1612
1613 channel = &ring->channel;
1614
1615 __vxge_hw_ring_abort(ring);
1616
1617 status = __vxge_hw_channel_reset(channel);
1618
1619 if (status != VXGE_HW_OK)
1620 goto exit;
1621
1622 if (ring->rxd_init) {
1623 status = vxge_hw_ring_replenish(ring, 1);
1624 if (status != VXGE_HW_OK)
1625 goto exit;
1626 }
1627 exit:
1628 return status;
1629 }
1630
1631 /*
1632 * __vxge_hw_ring_delete - Removes the ring
1633 * This function freeup the memory pool and removes the ring
1634 */
1635 enum vxge_hw_status __vxge_hw_ring_delete(struct __vxge_hw_vpath_handle *vp)
1636 {
1637 struct __vxge_hw_ring *ring = vp->vpath->ringh;
1638
1639 __vxge_hw_ring_abort(ring);
1640
1641 if (ring->mempool)
1642 __vxge_hw_mempool_destroy(ring->mempool);
1643
1644 vp->vpath->ringh = NULL;
1645 __vxge_hw_channel_free(&ring->channel);
1646
1647 return VXGE_HW_OK;
1648 }
1649
1650 /*
1651 * __vxge_hw_mempool_grow
1652 * Will resize mempool up to %num_allocate value.
1653 */
1654 enum vxge_hw_status
1655 __vxge_hw_mempool_grow(struct vxge_hw_mempool *mempool, u32 num_allocate,
1656 u32 *num_allocated)
1657 {
1658 u32 i, first_time = mempool->memblocks_allocated == 0 ? 1 : 0;
1659 u32 n_items = mempool->items_per_memblock;
1660 u32 start_block_idx = mempool->memblocks_allocated;
1661 u32 end_block_idx = mempool->memblocks_allocated + num_allocate;
1662 enum vxge_hw_status status = VXGE_HW_OK;
1663
1664 *num_allocated = 0;
1665
1666 if (end_block_idx > mempool->memblocks_max) {
1667 status = VXGE_HW_ERR_OUT_OF_MEMORY;
1668 goto exit;
1669 }
1670
1671 for (i = start_block_idx; i < end_block_idx; i++) {
1672 u32 j;
1673 u32 is_last = ((end_block_idx - 1) == i);
1674 struct vxge_hw_mempool_dma *dma_object =
1675 mempool->memblocks_dma_arr + i;
1676 void *the_memblock;
1677
1678 /* allocate memblock's private part. Each DMA memblock
1679 * has a space allocated for item's private usage upon
1680 * mempool's user request. Each time mempool grows, it will
1681 * allocate new memblock and its private part at once.
1682 * This helps to minimize memory usage a lot. */
1683 mempool->memblocks_priv_arr[i] =
1684 vmalloc(mempool->items_priv_size * n_items);
1685 if (mempool->memblocks_priv_arr[i] == NULL) {
1686 status = VXGE_HW_ERR_OUT_OF_MEMORY;
1687 goto exit;
1688 }
1689
1690 memset(mempool->memblocks_priv_arr[i], 0,
1691 mempool->items_priv_size * n_items);
1692
1693 /* allocate DMA-capable memblock */
1694 mempool->memblocks_arr[i] =
1695 __vxge_hw_blockpool_malloc(mempool->devh,
1696 mempool->memblock_size, dma_object);
1697 if (mempool->memblocks_arr[i] == NULL) {
1698 vfree(mempool->memblocks_priv_arr[i]);
1699 status = VXGE_HW_ERR_OUT_OF_MEMORY;
1700 goto exit;
1701 }
1702
1703 (*num_allocated)++;
1704 mempool->memblocks_allocated++;
1705
1706 memset(mempool->memblocks_arr[i], 0, mempool->memblock_size);
1707
1708 the_memblock = mempool->memblocks_arr[i];
1709
1710 /* fill the items hash array */
1711 for (j = 0; j < n_items; j++) {
1712 u32 index = i * n_items + j;
1713
1714 if (first_time && index >= mempool->items_initial)
1715 break;
1716
1717 mempool->items_arr[index] =
1718 ((char *)the_memblock + j*mempool->item_size);
1719
1720 /* let caller to do more job on each item */
1721 if (mempool->item_func_alloc != NULL)
1722 mempool->item_func_alloc(mempool, i,
1723 dma_object, index, is_last);
1724
1725 mempool->items_current = index + 1;
1726 }
1727
1728 if (first_time && mempool->items_current ==
1729 mempool->items_initial)
1730 break;
1731 }
1732 exit:
1733 return status;
1734 }
1735
1736 /*
1737 * vxge_hw_mempool_create
1738 * This function will create memory pool object. Pool may grow but will
1739 * never shrink. Pool consists of number of dynamically allocated blocks
1740 * with size enough to hold %items_initial number of items. Memory is
1741 * DMA-able but client must map/unmap before interoperating with the device.
1742 */
1743 struct vxge_hw_mempool*
1744 __vxge_hw_mempool_create(
1745 struct __vxge_hw_device *devh,
1746 u32 memblock_size,
1747 u32 item_size,
1748 u32 items_priv_size,
1749 u32 items_initial,
1750 u32 items_max,
1751 struct vxge_hw_mempool_cbs *mp_callback,
1752 void *userdata)
1753 {
1754 enum vxge_hw_status status = VXGE_HW_OK;
1755 u32 memblocks_to_allocate;
1756 struct vxge_hw_mempool *mempool = NULL;
1757 u32 allocated;
1758
1759 if (memblock_size < item_size) {
1760 status = VXGE_HW_FAIL;
1761 goto exit;
1762 }
1763
1764 mempool = (struct vxge_hw_mempool *)
1765 vmalloc(sizeof(struct vxge_hw_mempool));
1766 if (mempool == NULL) {
1767 status = VXGE_HW_ERR_OUT_OF_MEMORY;
1768 goto exit;
1769 }
1770 memset(mempool, 0, sizeof(struct vxge_hw_mempool));
1771
1772 mempool->devh = devh;
1773 mempool->memblock_size = memblock_size;
1774 mempool->items_max = items_max;
1775 mempool->items_initial = items_initial;
1776 mempool->item_size = item_size;
1777 mempool->items_priv_size = items_priv_size;
1778 mempool->item_func_alloc = mp_callback->item_func_alloc;
1779 mempool->userdata = userdata;
1780
1781 mempool->memblocks_allocated = 0;
1782
1783 mempool->items_per_memblock = memblock_size / item_size;
1784
1785 mempool->memblocks_max = (items_max + mempool->items_per_memblock - 1) /
1786 mempool->items_per_memblock;
1787
1788 /* allocate array of memblocks */
1789 mempool->memblocks_arr =
1790 (void **) vmalloc(sizeof(void *) * mempool->memblocks_max);
1791 if (mempool->memblocks_arr == NULL) {
1792 __vxge_hw_mempool_destroy(mempool);
1793 status = VXGE_HW_ERR_OUT_OF_MEMORY;
1794 mempool = NULL;
1795 goto exit;
1796 }
1797 memset(mempool->memblocks_arr, 0,
1798 sizeof(void *) * mempool->memblocks_max);
1799
1800 /* allocate array of private parts of items per memblocks */
1801 mempool->memblocks_priv_arr =
1802 (void **) vmalloc(sizeof(void *) * mempool->memblocks_max);
1803 if (mempool->memblocks_priv_arr == NULL) {
1804 __vxge_hw_mempool_destroy(mempool);
1805 status = VXGE_HW_ERR_OUT_OF_MEMORY;
1806 mempool = NULL;
1807 goto exit;
1808 }
1809 memset(mempool->memblocks_priv_arr, 0,
1810 sizeof(void *) * mempool->memblocks_max);
1811
1812 /* allocate array of memblocks DMA objects */
1813 mempool->memblocks_dma_arr = (struct vxge_hw_mempool_dma *)
1814 vmalloc(sizeof(struct vxge_hw_mempool_dma) *
1815 mempool->memblocks_max);
1816
1817 if (mempool->memblocks_dma_arr == NULL) {
1818 __vxge_hw_mempool_destroy(mempool);
1819 status = VXGE_HW_ERR_OUT_OF_MEMORY;
1820 mempool = NULL;
1821 goto exit;
1822 }
1823 memset(mempool->memblocks_dma_arr, 0,
1824 sizeof(struct vxge_hw_mempool_dma) *
1825 mempool->memblocks_max);
1826
1827 /* allocate hash array of items */
1828 mempool->items_arr =
1829 (void **) vmalloc(sizeof(void *) * mempool->items_max);
1830 if (mempool->items_arr == NULL) {
1831 __vxge_hw_mempool_destroy(mempool);
1832 status = VXGE_HW_ERR_OUT_OF_MEMORY;
1833 mempool = NULL;
1834 goto exit;
1835 }
1836 memset(mempool->items_arr, 0, sizeof(void *) * mempool->items_max);
1837
1838 /* calculate initial number of memblocks */
1839 memblocks_to_allocate = (mempool->items_initial +
1840 mempool->items_per_memblock - 1) /
1841 mempool->items_per_memblock;
1842
1843 /* pre-allocate the mempool */
1844 status = __vxge_hw_mempool_grow(mempool, memblocks_to_allocate,
1845 &allocated);
1846 if (status != VXGE_HW_OK) {
1847 __vxge_hw_mempool_destroy(mempool);
1848 status = VXGE_HW_ERR_OUT_OF_MEMORY;
1849 mempool = NULL;
1850 goto exit;
1851 }
1852
1853 exit:
1854 return mempool;
1855 }
1856
1857 /*
1858 * vxge_hw_mempool_destroy
1859 */
1860 void __vxge_hw_mempool_destroy(struct vxge_hw_mempool *mempool)
1861 {
1862 u32 i, j;
1863 struct __vxge_hw_device *devh = mempool->devh;
1864
1865 for (i = 0; i < mempool->memblocks_allocated; i++) {
1866 struct vxge_hw_mempool_dma *dma_object;
1867
1868 vxge_assert(mempool->memblocks_arr[i]);
1869 vxge_assert(mempool->memblocks_dma_arr + i);
1870
1871 dma_object = mempool->memblocks_dma_arr + i;
1872
1873 for (j = 0; j < mempool->items_per_memblock; j++) {
1874 u32 index = i * mempool->items_per_memblock + j;
1875
1876 /* to skip last partially filled(if any) memblock */
1877 if (index >= mempool->items_current)
1878 break;
1879 }
1880
1881 vfree(mempool->memblocks_priv_arr[i]);
1882
1883 __vxge_hw_blockpool_free(devh, mempool->memblocks_arr[i],
1884 mempool->memblock_size, dma_object);
1885 }
1886
1887 if (mempool->items_arr)
1888 vfree(mempool->items_arr);
1889
1890 if (mempool->memblocks_dma_arr)
1891 vfree(mempool->memblocks_dma_arr);
1892
1893 if (mempool->memblocks_priv_arr)
1894 vfree(mempool->memblocks_priv_arr);
1895
1896 if (mempool->memblocks_arr)
1897 vfree(mempool->memblocks_arr);
1898
1899 vfree(mempool);
1900 }
1901
1902 /*
1903 * __vxge_hw_device_fifo_config_check - Check fifo configuration.
1904 * Check the fifo configuration
1905 */
1906 enum vxge_hw_status
1907 __vxge_hw_device_fifo_config_check(struct vxge_hw_fifo_config *fifo_config)
1908 {
1909 if ((fifo_config->fifo_blocks < VXGE_HW_MIN_FIFO_BLOCKS) ||
1910 (fifo_config->fifo_blocks > VXGE_HW_MAX_FIFO_BLOCKS))
1911 return VXGE_HW_BADCFG_FIFO_BLOCKS;
1912
1913 return VXGE_HW_OK;
1914 }
1915
1916 /*
1917 * __vxge_hw_device_vpath_config_check - Check vpath configuration.
1918 * Check the vpath configuration
1919 */
1920 enum vxge_hw_status
1921 __vxge_hw_device_vpath_config_check(struct vxge_hw_vp_config *vp_config)
1922 {
1923 enum vxge_hw_status status;
1924
1925 if ((vp_config->min_bandwidth < VXGE_HW_VPATH_BANDWIDTH_MIN) ||
1926 (vp_config->min_bandwidth >
1927 VXGE_HW_VPATH_BANDWIDTH_MAX))
1928 return VXGE_HW_BADCFG_VPATH_MIN_BANDWIDTH;
1929
1930 status = __vxge_hw_device_fifo_config_check(&vp_config->fifo);
1931 if (status != VXGE_HW_OK)
1932 return status;
1933
1934 if ((vp_config->mtu != VXGE_HW_VPATH_USE_FLASH_DEFAULT_INITIAL_MTU) &&
1935 ((vp_config->mtu < VXGE_HW_VPATH_MIN_INITIAL_MTU) ||
1936 (vp_config->mtu > VXGE_HW_VPATH_MAX_INITIAL_MTU)))
1937 return VXGE_HW_BADCFG_VPATH_MTU;
1938
1939 if ((vp_config->rpa_strip_vlan_tag !=
1940 VXGE_HW_VPATH_RPA_STRIP_VLAN_TAG_USE_FLASH_DEFAULT) &&
1941 (vp_config->rpa_strip_vlan_tag !=
1942 VXGE_HW_VPATH_RPA_STRIP_VLAN_TAG_ENABLE) &&
1943 (vp_config->rpa_strip_vlan_tag !=
1944 VXGE_HW_VPATH_RPA_STRIP_VLAN_TAG_DISABLE))
1945 return VXGE_HW_BADCFG_VPATH_RPA_STRIP_VLAN_TAG;
1946
1947 return VXGE_HW_OK;
1948 }
1949
1950 /*
1951 * __vxge_hw_device_config_check - Check device configuration.
1952 * Check the device configuration
1953 */
1954 enum vxge_hw_status
1955 __vxge_hw_device_config_check(struct vxge_hw_device_config *new_config)
1956 {
1957 u32 i;
1958 enum vxge_hw_status status;
1959
1960 if ((new_config->intr_mode != VXGE_HW_INTR_MODE_IRQLINE) &&
1961 (new_config->intr_mode != VXGE_HW_INTR_MODE_MSIX) &&
1962 (new_config->intr_mode != VXGE_HW_INTR_MODE_MSIX_ONE_SHOT) &&
1963 (new_config->intr_mode != VXGE_HW_INTR_MODE_DEF))
1964 return VXGE_HW_BADCFG_INTR_MODE;
1965
1966 if ((new_config->rts_mac_en != VXGE_HW_RTS_MAC_DISABLE) &&
1967 (new_config->rts_mac_en != VXGE_HW_RTS_MAC_ENABLE))
1968 return VXGE_HW_BADCFG_RTS_MAC_EN;
1969
1970 for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) {
1971 status = __vxge_hw_device_vpath_config_check(
1972 &new_config->vp_config[i]);
1973 if (status != VXGE_HW_OK)
1974 return status;
1975 }
1976
1977 return VXGE_HW_OK;
1978 }
1979
1980 /*
1981 * vxge_hw_device_config_default_get - Initialize device config with defaults.
1982 * Initialize Titan device config with default values.
1983 */
1984 enum vxge_hw_status __devinit
1985 vxge_hw_device_config_default_get(struct vxge_hw_device_config *device_config)
1986 {
1987 u32 i;
1988
1989 device_config->dma_blockpool_initial =
1990 VXGE_HW_INITIAL_DMA_BLOCK_POOL_SIZE;
1991 device_config->dma_blockpool_max = VXGE_HW_MAX_DMA_BLOCK_POOL_SIZE;
1992 device_config->intr_mode = VXGE_HW_INTR_MODE_DEF;
1993 device_config->rth_en = VXGE_HW_RTH_DEFAULT;
1994 device_config->rth_it_type = VXGE_HW_RTH_IT_TYPE_DEFAULT;
1995 device_config->device_poll_millis = VXGE_HW_DEF_DEVICE_POLL_MILLIS;
1996 device_config->rts_mac_en = VXGE_HW_RTS_MAC_DEFAULT;
1997
1998 for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) {
1999
2000 device_config->vp_config[i].vp_id = i;
2001
2002 device_config->vp_config[i].min_bandwidth =
2003 VXGE_HW_VPATH_BANDWIDTH_DEFAULT;
2004
2005 device_config->vp_config[i].ring.enable = VXGE_HW_RING_DEFAULT;
2006
2007 device_config->vp_config[i].ring.ring_blocks =
2008 VXGE_HW_DEF_RING_BLOCKS;
2009
2010 device_config->vp_config[i].ring.buffer_mode =
2011 VXGE_HW_RING_RXD_BUFFER_MODE_DEFAULT;
2012
2013 device_config->vp_config[i].ring.scatter_mode =
2014 VXGE_HW_RING_SCATTER_MODE_USE_FLASH_DEFAULT;
2015
2016 device_config->vp_config[i].ring.rxds_limit =
2017 VXGE_HW_DEF_RING_RXDS_LIMIT;
2018
2019 device_config->vp_config[i].fifo.enable = VXGE_HW_FIFO_ENABLE;
2020
2021 device_config->vp_config[i].fifo.fifo_blocks =
2022 VXGE_HW_MIN_FIFO_BLOCKS;
2023
2024 device_config->vp_config[i].fifo.max_frags =
2025 VXGE_HW_MAX_FIFO_FRAGS;
2026
2027 device_config->vp_config[i].fifo.memblock_size =
2028 VXGE_HW_DEF_FIFO_MEMBLOCK_SIZE;
2029
2030 device_config->vp_config[i].fifo.alignment_size =
2031 VXGE_HW_DEF_FIFO_ALIGNMENT_SIZE;
2032
2033 device_config->vp_config[i].fifo.intr =
2034 VXGE_HW_FIFO_QUEUE_INTR_DEFAULT;
2035
2036 device_config->vp_config[i].fifo.no_snoop_bits =
2037 VXGE_HW_FIFO_NO_SNOOP_DEFAULT;
2038 device_config->vp_config[i].tti.intr_enable =
2039 VXGE_HW_TIM_INTR_DEFAULT;
2040
2041 device_config->vp_config[i].tti.btimer_val =
2042 VXGE_HW_USE_FLASH_DEFAULT;
2043
2044 device_config->vp_config[i].tti.timer_ac_en =
2045 VXGE_HW_USE_FLASH_DEFAULT;
2046
2047 device_config->vp_config[i].tti.timer_ci_en =
2048 VXGE_HW_USE_FLASH_DEFAULT;
2049
2050 device_config->vp_config[i].tti.timer_ri_en =
2051 VXGE_HW_USE_FLASH_DEFAULT;
2052
2053 device_config->vp_config[i].tti.rtimer_val =
2054 VXGE_HW_USE_FLASH_DEFAULT;
2055
2056 device_config->vp_config[i].tti.util_sel =
2057 VXGE_HW_USE_FLASH_DEFAULT;
2058
2059 device_config->vp_config[i].tti.ltimer_val =
2060 VXGE_HW_USE_FLASH_DEFAULT;
2061
2062 device_config->vp_config[i].tti.urange_a =
2063 VXGE_HW_USE_FLASH_DEFAULT;
2064
2065 device_config->vp_config[i].tti.uec_a =
2066 VXGE_HW_USE_FLASH_DEFAULT;
2067
2068 device_config->vp_config[i].tti.urange_b =
2069 VXGE_HW_USE_FLASH_DEFAULT;
2070
2071 device_config->vp_config[i].tti.uec_b =
2072 VXGE_HW_USE_FLASH_DEFAULT;
2073
2074 device_config->vp_config[i].tti.urange_c =
2075 VXGE_HW_USE_FLASH_DEFAULT;
2076
2077 device_config->vp_config[i].tti.uec_c =
2078 VXGE_HW_USE_FLASH_DEFAULT;
2079
2080 device_config->vp_config[i].tti.uec_d =
2081 VXGE_HW_USE_FLASH_DEFAULT;
2082
2083 device_config->vp_config[i].rti.intr_enable =
2084 VXGE_HW_TIM_INTR_DEFAULT;
2085
2086 device_config->vp_config[i].rti.btimer_val =
2087 VXGE_HW_USE_FLASH_DEFAULT;
2088
2089 device_config->vp_config[i].rti.timer_ac_en =
2090 VXGE_HW_USE_FLASH_DEFAULT;
2091
2092 device_config->vp_config[i].rti.timer_ci_en =
2093 VXGE_HW_USE_FLASH_DEFAULT;
2094
2095 device_config->vp_config[i].rti.timer_ri_en =
2096 VXGE_HW_USE_FLASH_DEFAULT;
2097
2098 device_config->vp_config[i].rti.rtimer_val =
2099 VXGE_HW_USE_FLASH_DEFAULT;
2100
2101 device_config->vp_config[i].rti.util_sel =
2102 VXGE_HW_USE_FLASH_DEFAULT;
2103
2104 device_config->vp_config[i].rti.ltimer_val =
2105 VXGE_HW_USE_FLASH_DEFAULT;
2106
2107 device_config->vp_config[i].rti.urange_a =
2108 VXGE_HW_USE_FLASH_DEFAULT;
2109
2110 device_config->vp_config[i].rti.uec_a =
2111 VXGE_HW_USE_FLASH_DEFAULT;
2112
2113 device_config->vp_config[i].rti.urange_b =
2114 VXGE_HW_USE_FLASH_DEFAULT;
2115
2116 device_config->vp_config[i].rti.uec_b =
2117 VXGE_HW_USE_FLASH_DEFAULT;
2118
2119 device_config->vp_config[i].rti.urange_c =
2120 VXGE_HW_USE_FLASH_DEFAULT;
2121
2122 device_config->vp_config[i].rti.uec_c =
2123 VXGE_HW_USE_FLASH_DEFAULT;
2124
2125 device_config->vp_config[i].rti.uec_d =
2126 VXGE_HW_USE_FLASH_DEFAULT;
2127
2128 device_config->vp_config[i].mtu =
2129 VXGE_HW_VPATH_USE_FLASH_DEFAULT_INITIAL_MTU;
2130
2131 device_config->vp_config[i].rpa_strip_vlan_tag =
2132 VXGE_HW_VPATH_RPA_STRIP_VLAN_TAG_USE_FLASH_DEFAULT;
2133 }
2134
2135 return VXGE_HW_OK;
2136 }
2137
2138 /*
2139 * _hw_legacy_swapper_set - Set the swapper bits for the legacy secion.
2140 * Set the swapper bits appropriately for the lagacy section.
2141 */
2142 enum vxge_hw_status
2143 __vxge_hw_legacy_swapper_set(struct vxge_hw_legacy_reg __iomem *legacy_reg)
2144 {
2145 u64 val64;
2146 enum vxge_hw_status status = VXGE_HW_OK;
2147
2148 val64 = readq(&legacy_reg->toc_swapper_fb);
2149
2150 wmb();
2151
2152 switch (val64) {
2153
2154 case VXGE_HW_SWAPPER_INITIAL_VALUE:
2155 return status;
2156
2157 case VXGE_HW_SWAPPER_BYTE_SWAPPED_BIT_FLIPPED:
2158 writeq(VXGE_HW_SWAPPER_READ_BYTE_SWAP_ENABLE,
2159 &legacy_reg->pifm_rd_swap_en);
2160 writeq(VXGE_HW_SWAPPER_READ_BIT_FLAP_ENABLE,
2161 &legacy_reg->pifm_rd_flip_en);
2162 writeq(VXGE_HW_SWAPPER_WRITE_BYTE_SWAP_ENABLE,
2163 &legacy_reg->pifm_wr_swap_en);
2164 writeq(VXGE_HW_SWAPPER_WRITE_BIT_FLAP_ENABLE,
2165 &legacy_reg->pifm_wr_flip_en);
2166 break;
2167
2168 case VXGE_HW_SWAPPER_BYTE_SWAPPED:
2169 writeq(VXGE_HW_SWAPPER_READ_BYTE_SWAP_ENABLE,
2170 &legacy_reg->pifm_rd_swap_en);
2171 writeq(VXGE_HW_SWAPPER_WRITE_BYTE_SWAP_ENABLE,
2172 &legacy_reg->pifm_wr_swap_en);
2173 break;
2174
2175 case VXGE_HW_SWAPPER_BIT_FLIPPED:
2176 writeq(VXGE_HW_SWAPPER_READ_BIT_FLAP_ENABLE,
2177 &legacy_reg->pifm_rd_flip_en);
2178 writeq(VXGE_HW_SWAPPER_WRITE_BIT_FLAP_ENABLE,
2179 &legacy_reg->pifm_wr_flip_en);
2180 break;
2181 }
2182
2183 wmb();
2184
2185 val64 = readq(&legacy_reg->toc_swapper_fb);
2186
2187 if (val64 != VXGE_HW_SWAPPER_INITIAL_VALUE)
2188 status = VXGE_HW_ERR_SWAPPER_CTRL;
2189
2190 return status;
2191 }
2192
2193 /*
2194 * __vxge_hw_vpath_swapper_set - Set the swapper bits for the vpath.
2195 * Set the swapper bits appropriately for the vpath.
2196 */
2197 enum vxge_hw_status
2198 __vxge_hw_vpath_swapper_set(struct vxge_hw_vpath_reg __iomem *vpath_reg)
2199 {
2200 #ifndef __BIG_ENDIAN
2201 u64 val64;
2202
2203 val64 = readq(&vpath_reg->vpath_general_cfg1);
2204 wmb();
2205 val64 |= VXGE_HW_VPATH_GENERAL_CFG1_CTL_BYTE_SWAPEN;
2206 writeq(val64, &vpath_reg->vpath_general_cfg1);
2207 wmb();
2208 #endif
2209 return VXGE_HW_OK;
2210 }
2211
2212 /*
2213 * __vxge_hw_kdfc_swapper_set - Set the swapper bits for the kdfc.
2214 * Set the swapper bits appropriately for the vpath.
2215 */
2216 enum vxge_hw_status
2217 __vxge_hw_kdfc_swapper_set(
2218 struct vxge_hw_legacy_reg __iomem *legacy_reg,
2219 struct vxge_hw_vpath_reg __iomem *vpath_reg)
2220 {
2221 u64 val64;
2222
2223 val64 = readq(&legacy_reg->pifm_wr_swap_en);
2224
2225 if (val64 == VXGE_HW_SWAPPER_WRITE_BYTE_SWAP_ENABLE) {
2226 val64 = readq(&vpath_reg->kdfcctl_cfg0);
2227 wmb();
2228
2229 val64 |= VXGE_HW_KDFCCTL_CFG0_BYTE_SWAPEN_FIFO0 |
2230 VXGE_HW_KDFCCTL_CFG0_BYTE_SWAPEN_FIFO1 |
2231 VXGE_HW_KDFCCTL_CFG0_BYTE_SWAPEN_FIFO2;
2232
2233 writeq(val64, &vpath_reg->kdfcctl_cfg0);
2234 wmb();
2235 }
2236
2237 return VXGE_HW_OK;
2238 }
2239
2240 /*
2241 * vxge_hw_mgmt_device_config - Retrieve device configuration.
2242 * Get device configuration. Permits to retrieve at run-time configuration
2243 * values that were used to initialize and configure the device.
2244 */
2245 enum vxge_hw_status
2246 vxge_hw_mgmt_device_config(struct __vxge_hw_device *hldev,
2247 struct vxge_hw_device_config *dev_config, int size)
2248 {
2249
2250 if ((hldev == NULL) || (hldev->magic != VXGE_HW_DEVICE_MAGIC))
2251 return VXGE_HW_ERR_INVALID_DEVICE;
2252
2253 if (size != sizeof(struct vxge_hw_device_config))
2254 return VXGE_HW_ERR_VERSION_CONFLICT;
2255
2256 memcpy(dev_config, &hldev->config,
2257 sizeof(struct vxge_hw_device_config));
2258
2259 return VXGE_HW_OK;
2260 }
2261
2262 /*
2263 * vxge_hw_mgmt_reg_read - Read Titan register.
2264 */
2265 enum vxge_hw_status
2266 vxge_hw_mgmt_reg_read(struct __vxge_hw_device *hldev,
2267 enum vxge_hw_mgmt_reg_type type,
2268 u32 index, u32 offset, u64 *value)
2269 {
2270 enum vxge_hw_status status = VXGE_HW_OK;
2271
2272 if ((hldev == NULL) || (hldev->magic != VXGE_HW_DEVICE_MAGIC)) {
2273 status = VXGE_HW_ERR_INVALID_DEVICE;
2274 goto exit;
2275 }
2276
2277 switch (type) {
2278 case vxge_hw_mgmt_reg_type_legacy:
2279 if (offset > sizeof(struct vxge_hw_legacy_reg) - 8) {
2280 status = VXGE_HW_ERR_INVALID_OFFSET;
2281 break;
2282 }
2283 *value = readq((void __iomem *)hldev->legacy_reg + offset);
2284 break;
2285 case vxge_hw_mgmt_reg_type_toc:
2286 if (offset > sizeof(struct vxge_hw_toc_reg) - 8) {
2287 status = VXGE_HW_ERR_INVALID_OFFSET;
2288 break;
2289 }
2290 *value = readq((void __iomem *)hldev->toc_reg + offset);
2291 break;
2292 case vxge_hw_mgmt_reg_type_common:
2293 if (offset > sizeof(struct vxge_hw_common_reg) - 8) {
2294 status = VXGE_HW_ERR_INVALID_OFFSET;
2295 break;
2296 }
2297 *value = readq((void __iomem *)hldev->common_reg + offset);
2298 break;
2299 case vxge_hw_mgmt_reg_type_mrpcim:
2300 if (!(hldev->access_rights &
2301 VXGE_HW_DEVICE_ACCESS_RIGHT_MRPCIM)) {
2302 status = VXGE_HW_ERR_PRIVILAGED_OPEARATION;
2303 break;
2304 }
2305 if (offset > sizeof(struct vxge_hw_mrpcim_reg) - 8) {
2306 status = VXGE_HW_ERR_INVALID_OFFSET;
2307 break;
2308 }
2309 *value = readq((void __iomem *)hldev->mrpcim_reg + offset);
2310 break;
2311 case vxge_hw_mgmt_reg_type_srpcim:
2312 if (!(hldev->access_rights &
2313 VXGE_HW_DEVICE_ACCESS_RIGHT_SRPCIM)) {
2314 status = VXGE_HW_ERR_PRIVILAGED_OPEARATION;
2315 break;
2316 }
2317 if (index > VXGE_HW_TITAN_SRPCIM_REG_SPACES - 1) {
2318 status = VXGE_HW_ERR_INVALID_INDEX;
2319 break;
2320 }
2321 if (offset > sizeof(struct vxge_hw_srpcim_reg) - 8) {
2322 status = VXGE_HW_ERR_INVALID_OFFSET;
2323 break;
2324 }
2325 *value = readq((void __iomem *)hldev->srpcim_reg[index] +
2326 offset);
2327 break;
2328 case vxge_hw_mgmt_reg_type_vpmgmt:
2329 if ((index > VXGE_HW_TITAN_VPMGMT_REG_SPACES - 1) ||
2330 (!(hldev->vpath_assignments & vxge_mBIT(index)))) {
2331 status = VXGE_HW_ERR_INVALID_INDEX;
2332 break;
2333 }
2334 if (offset > sizeof(struct vxge_hw_vpmgmt_reg) - 8) {
2335 status = VXGE_HW_ERR_INVALID_OFFSET;
2336 break;
2337 }
2338 *value = readq((void __iomem *)hldev->vpmgmt_reg[index] +
2339 offset);
2340 break;
2341 case vxge_hw_mgmt_reg_type_vpath:
2342 if ((index > VXGE_HW_TITAN_VPATH_REG_SPACES - 1) ||
2343 (!(hldev->vpath_assignments & vxge_mBIT(index)))) {
2344 status = VXGE_HW_ERR_INVALID_INDEX;
2345 break;
2346 }
2347 if (index > VXGE_HW_TITAN_VPATH_REG_SPACES - 1) {
2348 status = VXGE_HW_ERR_INVALID_INDEX;
2349 break;
2350 }
2351 if (offset > sizeof(struct vxge_hw_vpath_reg) - 8) {
2352 status = VXGE_HW_ERR_INVALID_OFFSET;
2353 break;
2354 }
2355 *value = readq((void __iomem *)hldev->vpath_reg[index] +
2356 offset);
2357 break;
2358 default:
2359 status = VXGE_HW_ERR_INVALID_TYPE;
2360 break;
2361 }
2362
2363 exit:
2364 return status;
2365 }
2366
2367 /*
2368 * vxge_hw_mgmt_reg_Write - Write Titan register.
2369 */
2370 enum vxge_hw_status
2371 vxge_hw_mgmt_reg_write(struct __vxge_hw_device *hldev,
2372 enum vxge_hw_mgmt_reg_type type,
2373 u32 index, u32 offset, u64 value)
2374 {
2375 enum vxge_hw_status status = VXGE_HW_OK;
2376
2377 if ((hldev == NULL) || (hldev->magic != VXGE_HW_DEVICE_MAGIC)) {
2378 status = VXGE_HW_ERR_INVALID_DEVICE;
2379 goto exit;
2380 }
2381
2382 switch (type) {
2383 case vxge_hw_mgmt_reg_type_legacy:
2384 if (offset > sizeof(struct vxge_hw_legacy_reg) - 8) {
2385 status = VXGE_HW_ERR_INVALID_OFFSET;
2386 break;
2387 }
2388 writeq(value, (void __iomem *)hldev->legacy_reg + offset);
2389 break;
2390 case vxge_hw_mgmt_reg_type_toc:
2391 if (offset > sizeof(struct vxge_hw_toc_reg) - 8) {
2392 status = VXGE_HW_ERR_INVALID_OFFSET;
2393 break;
2394 }
2395 writeq(value, (void __iomem *)hldev->toc_reg + offset);
2396 break;
2397 case vxge_hw_mgmt_reg_type_common:
2398 if (offset > sizeof(struct vxge_hw_common_reg) - 8) {
2399 status = VXGE_HW_ERR_INVALID_OFFSET;
2400 break;
2401 }
2402 writeq(value, (void __iomem *)hldev->common_reg + offset);
2403 break;
2404 case vxge_hw_mgmt_reg_type_mrpcim:
2405 if (!(hldev->access_rights &
2406 VXGE_HW_DEVICE_ACCESS_RIGHT_MRPCIM)) {
2407 status = VXGE_HW_ERR_PRIVILAGED_OPEARATION;
2408 break;
2409 }
2410 if (offset > sizeof(struct vxge_hw_mrpcim_reg) - 8) {
2411 status = VXGE_HW_ERR_INVALID_OFFSET;
2412 break;
2413 }
2414 writeq(value, (void __iomem *)hldev->mrpcim_reg + offset);
2415 break;
2416 case vxge_hw_mgmt_reg_type_srpcim:
2417 if (!(hldev->access_rights &
2418 VXGE_HW_DEVICE_ACCESS_RIGHT_SRPCIM)) {
2419 status = VXGE_HW_ERR_PRIVILAGED_OPEARATION;
2420 break;
2421 }
2422 if (index > VXGE_HW_TITAN_SRPCIM_REG_SPACES - 1) {
2423 status = VXGE_HW_ERR_INVALID_INDEX;
2424 break;
2425 }
2426 if (offset > sizeof(struct vxge_hw_srpcim_reg) - 8) {
2427 status = VXGE_HW_ERR_INVALID_OFFSET;
2428 break;
2429 }
2430 writeq(value, (void __iomem *)hldev->srpcim_reg[index] +
2431 offset);
2432
2433 break;
2434 case vxge_hw_mgmt_reg_type_vpmgmt:
2435 if ((index > VXGE_HW_TITAN_VPMGMT_REG_SPACES - 1) ||
2436 (!(hldev->vpath_assignments & vxge_mBIT(index)))) {
2437 status = VXGE_HW_ERR_INVALID_INDEX;
2438 break;
2439 }
2440 if (offset > sizeof(struct vxge_hw_vpmgmt_reg) - 8) {
2441 status = VXGE_HW_ERR_INVALID_OFFSET;
2442 break;
2443 }
2444 writeq(value, (void __iomem *)hldev->vpmgmt_reg[index] +
2445 offset);
2446 break;
2447 case vxge_hw_mgmt_reg_type_vpath:
2448 if ((index > VXGE_HW_TITAN_VPATH_REG_SPACES-1) ||
2449 (!(hldev->vpath_assignments & vxge_mBIT(index)))) {
2450 status = VXGE_HW_ERR_INVALID_INDEX;
2451 break;
2452 }
2453 if (offset > sizeof(struct vxge_hw_vpath_reg) - 8) {
2454 status = VXGE_HW_ERR_INVALID_OFFSET;
2455 break;
2456 }
2457 writeq(value, (void __iomem *)hldev->vpath_reg[index] +
2458 offset);
2459 break;
2460 default:
2461 status = VXGE_HW_ERR_INVALID_TYPE;
2462 break;
2463 }
2464 exit:
2465 return status;
2466 }
2467
2468 /*
2469 * __vxge_hw_fifo_mempool_item_alloc - Allocate List blocks for TxD
2470 * list callback
2471 * This function is callback passed to __vxge_hw_mempool_create to create memory
2472 * pool for TxD list
2473 */
2474 static void
2475 __vxge_hw_fifo_mempool_item_alloc(
2476 struct vxge_hw_mempool *mempoolh,
2477 u32 memblock_index, struct vxge_hw_mempool_dma *dma_object,
2478 u32 index, u32 is_last)
2479 {
2480 u32 memblock_item_idx;
2481 struct __vxge_hw_fifo_txdl_priv *txdl_priv;
2482 struct vxge_hw_fifo_txd *txdp =
2483 (struct vxge_hw_fifo_txd *)mempoolh->items_arr[index];
2484 struct __vxge_hw_fifo *fifo =
2485 (struct __vxge_hw_fifo *)mempoolh->userdata;
2486 void *memblock = mempoolh->memblocks_arr[memblock_index];
2487
2488 vxge_assert(txdp);
2489
2490 txdp->host_control = (u64) (size_t)
2491 __vxge_hw_mempool_item_priv(mempoolh, memblock_index, txdp,
2492 &memblock_item_idx);
2493
2494 txdl_priv = __vxge_hw_fifo_txdl_priv(fifo, txdp);
2495
2496 vxge_assert(txdl_priv);
2497
2498 fifo->channel.reserve_arr[fifo->channel.reserve_ptr - 1 - index] = txdp;
2499
2500 /* pre-format HW's TxDL's private */
2501 txdl_priv->dma_offset = (char *)txdp - (char *)memblock;
2502 txdl_priv->dma_addr = dma_object->addr + txdl_priv->dma_offset;
2503 txdl_priv->dma_handle = dma_object->handle;
2504 txdl_priv->memblock = memblock;
2505 txdl_priv->first_txdp = txdp;
2506 txdl_priv->next_txdl_priv = NULL;
2507 txdl_priv->alloc_frags = 0;
2508
2509 return;
2510 }
2511
2512 /*
2513 * __vxge_hw_fifo_create - Create a FIFO
2514 * This function creates FIFO and initializes it.
2515 */
2516 enum vxge_hw_status
2517 __vxge_hw_fifo_create(struct __vxge_hw_vpath_handle *vp,
2518 struct vxge_hw_fifo_attr *attr)
2519 {
2520 enum vxge_hw_status status = VXGE_HW_OK;
2521 struct __vxge_hw_fifo *fifo;
2522 struct vxge_hw_fifo_config *config;
2523 u32 txdl_size, txdl_per_memblock;
2524 struct vxge_hw_mempool_cbs fifo_mp_callback;
2525 struct __vxge_hw_virtualpath *vpath;
2526
2527 if ((vp == NULL) || (attr == NULL)) {
2528 status = VXGE_HW_ERR_INVALID_HANDLE;
2529 goto exit;
2530 }
2531 vpath = vp->vpath;
2532 config = &vpath->hldev->config.vp_config[vpath->vp_id].fifo;
2533
2534 txdl_size = config->max_frags * sizeof(struct vxge_hw_fifo_txd);
2535
2536 txdl_per_memblock = config->memblock_size / txdl_size;
2537
2538 fifo = (struct __vxge_hw_fifo *)__vxge_hw_channel_allocate(vp,
2539 VXGE_HW_CHANNEL_TYPE_FIFO,
2540 config->fifo_blocks * txdl_per_memblock,
2541 attr->per_txdl_space, attr->userdata);
2542
2543 if (fifo == NULL) {
2544 status = VXGE_HW_ERR_OUT_OF_MEMORY;
2545 goto exit;
2546 }
2547
2548 vpath->fifoh = fifo;
2549 fifo->nofl_db = vpath->nofl_db;
2550
2551 fifo->vp_id = vpath->vp_id;
2552 fifo->vp_reg = vpath->vp_reg;
2553 fifo->stats = &vpath->sw_stats->fifo_stats;
2554
2555 fifo->config = config;
2556
2557 /* apply "interrupts per txdl" attribute */
2558 fifo->interrupt_type = VXGE_HW_FIFO_TXD_INT_TYPE_UTILZ;
2559
2560 if (fifo->config->intr)
2561 fifo->interrupt_type = VXGE_HW_FIFO_TXD_INT_TYPE_PER_LIST;
2562
2563 fifo->no_snoop_bits = config->no_snoop_bits;
2564
2565 /*
2566 * FIFO memory management strategy:
2567 *
2568 * TxDL split into three independent parts:
2569 * - set of TxD's
2570 * - TxD HW private part
2571 * - driver private part
2572 *
2573 * Adaptative memory allocation used. i.e. Memory allocated on
2574 * demand with the size which will fit into one memory block.
2575 * One memory block may contain more than one TxDL.
2576 *
2577 * During "reserve" operations more memory can be allocated on demand
2578 * for example due to FIFO full condition.
2579 *
2580 * Pool of memory memblocks never shrinks except in __vxge_hw_fifo_close
2581 * routine which will essentially stop the channel and free resources.
2582 */
2583
2584 /* TxDL common private size == TxDL private + driver private */
2585 fifo->priv_size =
2586 sizeof(struct __vxge_hw_fifo_txdl_priv) + attr->per_txdl_space;
2587 fifo->priv_size = ((fifo->priv_size + VXGE_CACHE_LINE_SIZE - 1) /
2588 VXGE_CACHE_LINE_SIZE) * VXGE_CACHE_LINE_SIZE;
2589
2590 fifo->per_txdl_space = attr->per_txdl_space;
2591
2592 /* recompute txdl size to be cacheline aligned */
2593 fifo->txdl_size = txdl_size;
2594 fifo->txdl_per_memblock = txdl_per_memblock;
2595
2596 fifo->txdl_term = attr->txdl_term;
2597 fifo->callback = attr->callback;
2598
2599 if (fifo->txdl_per_memblock == 0) {
2600 __vxge_hw_fifo_delete(vp);
2601 status = VXGE_HW_ERR_INVALID_BLOCK_SIZE;
2602 goto exit;
2603 }
2604
2605 fifo_mp_callback.item_func_alloc = __vxge_hw_fifo_mempool_item_alloc;
2606
2607 fifo->mempool =
2608 __vxge_hw_mempool_create(vpath->hldev,
2609 fifo->config->memblock_size,
2610 fifo->txdl_size,
2611 fifo->priv_size,
2612 (fifo->config->fifo_blocks * fifo->txdl_per_memblock),
2613 (fifo->config->fifo_blocks * fifo->txdl_per_memblock),
2614 &fifo_mp_callback,
2615 fifo);
2616
2617 if (fifo->mempool == NULL) {
2618 __vxge_hw_fifo_delete(vp);
2619 status = VXGE_HW_ERR_OUT_OF_MEMORY;
2620 goto exit;
2621 }
2622
2623 status = __vxge_hw_channel_initialize(&fifo->channel);
2624 if (status != VXGE_HW_OK) {
2625 __vxge_hw_fifo_delete(vp);
2626 goto exit;
2627 }
2628
2629 vxge_assert(fifo->channel.reserve_ptr);
2630 exit:
2631 return status;
2632 }
2633
2634 /*
2635 * __vxge_hw_fifo_abort - Returns the TxD
2636 * This function terminates the TxDs of fifo
2637 */
2638 enum vxge_hw_status __vxge_hw_fifo_abort(struct __vxge_hw_fifo *fifo)
2639 {
2640 void *txdlh;
2641
2642 for (;;) {
2643 vxge_hw_channel_dtr_try_complete(&fifo->channel, &txdlh);
2644
2645 if (txdlh == NULL)
2646 break;
2647
2648 vxge_hw_channel_dtr_complete(&fifo->channel);
2649
2650 if (fifo->txdl_term) {
2651 fifo->txdl_term(txdlh,
2652 VXGE_HW_TXDL_STATE_POSTED,
2653 fifo->channel.userdata);
2654 }
2655
2656 vxge_hw_channel_dtr_free(&fifo->channel, txdlh);
2657 }
2658
2659 return VXGE_HW_OK;
2660 }
2661
2662 /*
2663 * __vxge_hw_fifo_reset - Resets the fifo
2664 * This function resets the fifo during vpath reset operation
2665 */
2666 enum vxge_hw_status __vxge_hw_fifo_reset(struct __vxge_hw_fifo *fifo)
2667 {
2668 enum vxge_hw_status status = VXGE_HW_OK;
2669
2670 __vxge_hw_fifo_abort(fifo);
2671 status = __vxge_hw_channel_reset(&fifo->channel);
2672
2673 return status;
2674 }
2675
2676 /*
2677 * __vxge_hw_fifo_delete - Removes the FIFO
2678 * This function freeup the memory pool and removes the FIFO
2679 */
2680 enum vxge_hw_status __vxge_hw_fifo_delete(struct __vxge_hw_vpath_handle *vp)
2681 {
2682 struct __vxge_hw_fifo *fifo = vp->vpath->fifoh;
2683
2684 __vxge_hw_fifo_abort(fifo);
2685
2686 if (fifo->mempool)
2687 __vxge_hw_mempool_destroy(fifo->mempool);
2688
2689 vp->vpath->fifoh = NULL;
2690
2691 __vxge_hw_channel_free(&fifo->channel);
2692
2693 return VXGE_HW_OK;
2694 }
2695
2696 /*
2697 * __vxge_hw_vpath_pci_read - Read the content of given address
2698 * in pci config space.
2699 * Read from the vpath pci config space.
2700 */
2701 enum vxge_hw_status
2702 __vxge_hw_vpath_pci_read(struct __vxge_hw_virtualpath *vpath,
2703 u32 phy_func_0, u32 offset, u32 *val)
2704 {
2705 u64 val64;
2706 enum vxge_hw_status status = VXGE_HW_OK;
2707 struct vxge_hw_vpath_reg __iomem *vp_reg = vpath->vp_reg;
2708
2709 val64 = VXGE_HW_PCI_CONFIG_ACCESS_CFG1_ADDRESS(offset);
2710
2711 if (phy_func_0)
2712 val64 |= VXGE_HW_PCI_CONFIG_ACCESS_CFG1_SEL_FUNC0;
2713
2714 writeq(val64, &vp_reg->pci_config_access_cfg1);
2715 wmb();
2716 writeq(VXGE_HW_PCI_CONFIG_ACCESS_CFG2_REQ,
2717 &vp_reg->pci_config_access_cfg2);
2718 wmb();
2719
2720 status = __vxge_hw_device_register_poll(
2721 &vp_reg->pci_config_access_cfg2,
2722 VXGE_HW_INTR_MASK_ALL, VXGE_HW_DEF_DEVICE_POLL_MILLIS);
2723
2724 if (status != VXGE_HW_OK)
2725 goto exit;
2726
2727 val64 = readq(&vp_reg->pci_config_access_status);
2728
2729 if (val64 & VXGE_HW_PCI_CONFIG_ACCESS_STATUS_ACCESS_ERR) {
2730 status = VXGE_HW_FAIL;
2731 *val = 0;
2732 } else
2733 *val = (u32)vxge_bVALn(val64, 32, 32);
2734 exit:
2735 return status;
2736 }
2737
2738 /*
2739 * __vxge_hw_vpath_func_id_get - Get the function id of the vpath.
2740 * Returns the function number of the vpath.
2741 */
2742 u32
2743 __vxge_hw_vpath_func_id_get(u32 vp_id,
2744 struct vxge_hw_vpmgmt_reg __iomem *vpmgmt_reg)
2745 {
2746 u64 val64;
2747
2748 val64 = readq(&vpmgmt_reg->vpath_to_func_map_cfg1);
2749
2750 return
2751 (u32)VXGE_HW_VPATH_TO_FUNC_MAP_CFG1_GET_VPATH_TO_FUNC_MAP_CFG1(val64);
2752 }
2753
2754 /*
2755 * __vxge_hw_read_rts_ds - Program RTS steering critieria
2756 */
2757 static inline void
2758 __vxge_hw_read_rts_ds(struct vxge_hw_vpath_reg __iomem *vpath_reg,
2759 u64 dta_struct_sel)
2760 {
2761 writeq(0, &vpath_reg->rts_access_steer_ctrl);
2762 wmb();
2763 writeq(dta_struct_sel, &vpath_reg->rts_access_steer_data0);
2764 writeq(0, &vpath_reg->rts_access_steer_data1);
2765 wmb();
2766 return;
2767 }
2768
2769
2770 /*
2771 * __vxge_hw_vpath_card_info_get - Get the serial numbers,
2772 * part number and product description.
2773 */
2774 enum vxge_hw_status
2775 __vxge_hw_vpath_card_info_get(
2776 u32 vp_id,
2777 struct vxge_hw_vpath_reg __iomem *vpath_reg,
2778 struct vxge_hw_device_hw_info *hw_info)
2779 {
2780 u32 i, j;
2781 u64 val64;
2782 u64 data1 = 0ULL;
2783 u64 data2 = 0ULL;
2784 enum vxge_hw_status status = VXGE_HW_OK;
2785 u8 *serial_number = hw_info->serial_number;
2786 u8 *part_number = hw_info->part_number;
2787 u8 *product_desc = hw_info->product_desc;
2788
2789 __vxge_hw_read_rts_ds(vpath_reg,
2790 VXGE_HW_RTS_ACCESS_STEER_DATA0_MEMO_ITEM_SERIAL_NUMBER);
2791
2792 val64 = VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION(
2793 VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION_READ_MEMO_ENTRY) |
2794 VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL(
2795 VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_FW_MEMO) |
2796 VXGE_HW_RTS_ACCESS_STEER_CTRL_STROBE |
2797 VXGE_HW_RTS_ACCESS_STEER_CTRL_OFFSET(0);
2798
2799 status = __vxge_hw_pio_mem_write64(val64,
2800 &vpath_reg->rts_access_steer_ctrl,
2801 VXGE_HW_RTS_ACCESS_STEER_CTRL_STROBE,
2802 VXGE_HW_DEF_DEVICE_POLL_MILLIS);
2803
2804 if (status != VXGE_HW_OK)
2805 return status;
2806
2807 val64 = readq(&vpath_reg->rts_access_steer_ctrl);
2808
2809 if (val64 & VXGE_HW_RTS_ACCESS_STEER_CTRL_RMACJ_STATUS) {
2810 data1 = readq(&vpath_reg->rts_access_steer_data0);
2811 ((u64 *)serial_number)[0] = be64_to_cpu(data1);
2812
2813 data2 = readq(&vpath_reg->rts_access_steer_data1);
2814 ((u64 *)serial_number)[1] = be64_to_cpu(data2);
2815 status = VXGE_HW_OK;
2816 } else
2817 *serial_number = 0;
2818
2819 __vxge_hw_read_rts_ds(vpath_reg,
2820 VXGE_HW_RTS_ACCESS_STEER_DATA0_MEMO_ITEM_PART_NUMBER);
2821
2822 val64 = VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION(
2823 VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION_READ_MEMO_ENTRY) |
2824 VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL(
2825 VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_FW_MEMO) |
2826 VXGE_HW_RTS_ACCESS_STEER_CTRL_STROBE |
2827 VXGE_HW_RTS_ACCESS_STEER_CTRL_OFFSET(0);
2828
2829 status = __vxge_hw_pio_mem_write64(val64,
2830 &vpath_reg->rts_access_steer_ctrl,
2831 VXGE_HW_RTS_ACCESS_STEER_CTRL_STROBE,
2832 VXGE_HW_DEF_DEVICE_POLL_MILLIS);
2833
2834 if (status != VXGE_HW_OK)
2835 return status;
2836
2837 val64 = readq(&vpath_reg->rts_access_steer_ctrl);
2838
2839 if (val64 & VXGE_HW_RTS_ACCESS_STEER_CTRL_RMACJ_STATUS) {
2840
2841 data1 = readq(&vpath_reg->rts_access_steer_data0);
2842 ((u64 *)part_number)[0] = be64_to_cpu(data1);
2843
2844 data2 = readq(&vpath_reg->rts_access_steer_data1);
2845 ((u64 *)part_number)[1] = be64_to_cpu(data2);
2846
2847 status = VXGE_HW_OK;
2848
2849 } else
2850 *part_number = 0;
2851
2852 j = 0;
2853
2854 for (i = VXGE_HW_RTS_ACCESS_STEER_DATA0_MEMO_ITEM_DESC_0;
2855 i <= VXGE_HW_RTS_ACCESS_STEER_DATA0_MEMO_ITEM_DESC_3; i++) {
2856
2857 __vxge_hw_read_rts_ds(vpath_reg, i);
2858
2859 val64 = VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION(
2860 VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION_READ_MEMO_ENTRY) |
2861 VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL(
2862 VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_FW_MEMO) |
2863 VXGE_HW_RTS_ACCESS_STEER_CTRL_STROBE |
2864 VXGE_HW_RTS_ACCESS_STEER_CTRL_OFFSET(0);
2865
2866 status = __vxge_hw_pio_mem_write64(val64,
2867 &vpath_reg->rts_access_steer_ctrl,
2868 VXGE_HW_RTS_ACCESS_STEER_CTRL_STROBE,
2869 VXGE_HW_DEF_DEVICE_POLL_MILLIS);
2870
2871 if (status != VXGE_HW_OK)
2872 return status;
2873
2874 val64 = readq(&vpath_reg->rts_access_steer_ctrl);
2875
2876 if (val64 & VXGE_HW_RTS_ACCESS_STEER_CTRL_RMACJ_STATUS) {
2877
2878 data1 = readq(&vpath_reg->rts_access_steer_data0);
2879 ((u64 *)product_desc)[j++] = be64_to_cpu(data1);
2880
2881 data2 = readq(&vpath_reg->rts_access_steer_data1);
2882 ((u64 *)product_desc)[j++] = be64_to_cpu(data2);
2883
2884 status = VXGE_HW_OK;
2885 } else
2886 *product_desc = 0;
2887 }
2888
2889 return status;
2890 }
2891
2892 /*
2893 * __vxge_hw_vpath_fw_ver_get - Get the fw version
2894 * Returns FW Version
2895 */
2896 enum vxge_hw_status
2897 __vxge_hw_vpath_fw_ver_get(
2898 u32 vp_id,
2899 struct vxge_hw_vpath_reg __iomem *vpath_reg,
2900 struct vxge_hw_device_hw_info *hw_info)
2901 {
2902 u64 val64;
2903 u64 data1 = 0ULL;
2904 u64 data2 = 0ULL;
2905 struct vxge_hw_device_version *fw_version = &hw_info->fw_version;
2906 struct vxge_hw_device_date *fw_date = &hw_info->fw_date;
2907 struct vxge_hw_device_version *flash_version = &hw_info->flash_version;
2908 struct vxge_hw_device_date *flash_date = &hw_info->flash_date;
2909 enum vxge_hw_status status = VXGE_HW_OK;
2910
2911 val64 = VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION(
2912 VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION_READ_ENTRY) |
2913 VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL(
2914 VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_FW_MEMO) |
2915 VXGE_HW_RTS_ACCESS_STEER_CTRL_STROBE |
2916 VXGE_HW_RTS_ACCESS_STEER_CTRL_OFFSET(0);
2917
2918 status = __vxge_hw_pio_mem_write64(val64,
2919 &vpath_reg->rts_access_steer_ctrl,
2920 VXGE_HW_RTS_ACCESS_STEER_CTRL_STROBE,
2921 VXGE_HW_DEF_DEVICE_POLL_MILLIS);
2922
2923 if (status != VXGE_HW_OK)
2924 goto exit;
2925
2926 val64 = readq(&vpath_reg->rts_access_steer_ctrl);
2927
2928 if (val64 & VXGE_HW_RTS_ACCESS_STEER_CTRL_RMACJ_STATUS) {
2929
2930 data1 = readq(&vpath_reg->rts_access_steer_data0);
2931 data2 = readq(&vpath_reg->rts_access_steer_data1);
2932
2933 fw_date->day =
2934 (u32)VXGE_HW_RTS_ACCESS_STEER_DATA0_GET_FW_VER_DAY(
2935 data1);
2936 fw_date->month =
2937 (u32)VXGE_HW_RTS_ACCESS_STEER_DATA0_GET_FW_VER_MONTH(
2938 data1);
2939 fw_date->year =
2940 (u32)VXGE_HW_RTS_ACCESS_STEER_DATA0_GET_FW_VER_YEAR(
2941 data1);
2942
2943 snprintf(fw_date->date, VXGE_HW_FW_STRLEN, "%2.2d/%2.2d/%4.4d",
2944 fw_date->month, fw_date->day, fw_date->year);
2945
2946 fw_version->major =
2947 (u32)VXGE_HW_RTS_ACCESS_STEER_DATA0_GET_FW_VER_MAJOR(data1);
2948 fw_version->minor =
2949 (u32)VXGE_HW_RTS_ACCESS_STEER_DATA0_GET_FW_VER_MINOR(data1);
2950 fw_version->build =
2951 (u32)VXGE_HW_RTS_ACCESS_STEER_DATA0_GET_FW_VER_BUILD(data1);
2952
2953 snprintf(fw_version->version, VXGE_HW_FW_STRLEN, "%d.%d.%d",
2954 fw_version->major, fw_version->minor, fw_version->build);
2955
2956 flash_date->day =
2957 (u32)VXGE_HW_RTS_ACCESS_STEER_DATA1_GET_FLASH_VER_DAY(data2);
2958 flash_date->month =
2959 (u32)VXGE_HW_RTS_ACCESS_STEER_DATA1_GET_FLASH_VER_MONTH(data2);
2960 flash_date->year =
2961 (u32)VXGE_HW_RTS_ACCESS_STEER_DATA1_GET_FLASH_VER_YEAR(data2);
2962
2963 snprintf(flash_date->date, VXGE_HW_FW_STRLEN,
2964 "%2.2d/%2.2d/%4.4d",
2965 flash_date->month, flash_date->day, flash_date->year);
2966
2967 flash_version->major =
2968 (u32)VXGE_HW_RTS_ACCESS_STEER_DATA1_GET_FLASH_VER_MAJOR(data2);
2969 flash_version->minor =
2970 (u32)VXGE_HW_RTS_ACCESS_STEER_DATA1_GET_FLASH_VER_MINOR(data2);
2971 flash_version->build =
2972 (u32)VXGE_HW_RTS_ACCESS_STEER_DATA1_GET_FLASH_VER_BUILD(data2);
2973
2974 snprintf(flash_version->version, VXGE_HW_FW_STRLEN, "%d.%d.%d",
2975 flash_version->major, flash_version->minor,
2976 flash_version->build);
2977
2978 status = VXGE_HW_OK;
2979
2980 } else
2981 status = VXGE_HW_FAIL;
2982 exit:
2983 return status;
2984 }
2985
2986 /*
2987 * __vxge_hw_vpath_pci_func_mode_get - Get the pci mode
2988 * Returns pci function mode
2989 */
2990 u64
2991 __vxge_hw_vpath_pci_func_mode_get(
2992 u32 vp_id,
2993 struct vxge_hw_vpath_reg __iomem *vpath_reg)
2994 {
2995 u64 val64;
2996 u64 data1 = 0ULL;
2997 enum vxge_hw_status status = VXGE_HW_OK;
2998
2999 __vxge_hw_read_rts_ds(vpath_reg,
3000 VXGE_HW_RTS_ACCESS_STEER_DATA0_MEMO_ITEM_PCI_MODE);
3001
3002 val64 = VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION(
3003 VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION_READ_MEMO_ENTRY) |
3004 VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL(
3005 VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_FW_MEMO) |
3006 VXGE_HW_RTS_ACCESS_STEER_CTRL_STROBE |
3007 VXGE_HW_RTS_ACCESS_STEER_CTRL_OFFSET(0);
3008
3009 status = __vxge_hw_pio_mem_write64(val64,
3010 &vpath_reg->rts_access_steer_ctrl,
3011 VXGE_HW_RTS_ACCESS_STEER_CTRL_STROBE,
3012 VXGE_HW_DEF_DEVICE_POLL_MILLIS);
3013
3014 if (status != VXGE_HW_OK)
3015 goto exit;
3016
3017 val64 = readq(&vpath_reg->rts_access_steer_ctrl);
3018
3019 if (val64 & VXGE_HW_RTS_ACCESS_STEER_CTRL_RMACJ_STATUS) {
3020 data1 = readq(&vpath_reg->rts_access_steer_data0);
3021 status = VXGE_HW_OK;
3022 } else {
3023 data1 = 0;
3024 status = VXGE_HW_FAIL;
3025 }
3026 exit:
3027 return data1;
3028 }
3029
3030 /**
3031 * vxge_hw_device_flick_link_led - Flick (blink) link LED.
3032 * @hldev: HW device.
3033 * @on_off: TRUE if flickering to be on, FALSE to be off
3034 *
3035 * Flicker the link LED.
3036 */
3037 enum vxge_hw_status
3038 vxge_hw_device_flick_link_led(struct __vxge_hw_device *hldev,
3039 u64 on_off)
3040 {
3041 u64 val64;
3042 enum vxge_hw_status status = VXGE_HW_OK;
3043 struct vxge_hw_vpath_reg __iomem *vp_reg;
3044
3045 if (hldev == NULL) {
3046 status = VXGE_HW_ERR_INVALID_DEVICE;
3047 goto exit;
3048 }
3049
3050 vp_reg = hldev->vpath_reg[hldev->first_vp_id];
3051
3052 writeq(0, &vp_reg->rts_access_steer_ctrl);
3053 wmb();
3054 writeq(on_off, &vp_reg->rts_access_steer_data0);
3055 writeq(0, &vp_reg->rts_access_steer_data1);
3056 wmb();
3057
3058 val64 = VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION(
3059 VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION_LED_CONTROL) |
3060 VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL(
3061 VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_FW_MEMO) |
3062 VXGE_HW_RTS_ACCESS_STEER_CTRL_STROBE |
3063 VXGE_HW_RTS_ACCESS_STEER_CTRL_OFFSET(0);
3064
3065 status = __vxge_hw_pio_mem_write64(val64,
3066 &vp_reg->rts_access_steer_ctrl,
3067 VXGE_HW_RTS_ACCESS_STEER_CTRL_STROBE,
3068 VXGE_HW_DEF_DEVICE_POLL_MILLIS);
3069 exit:
3070 return status;
3071 }
3072
3073 /*
3074 * __vxge_hw_vpath_rts_table_get - Get the entries from RTS access tables
3075 */
3076 enum vxge_hw_status
3077 __vxge_hw_vpath_rts_table_get(
3078 struct __vxge_hw_vpath_handle *vp,
3079 u32 action, u32 rts_table, u32 offset, u64 *data1, u64 *data2)
3080 {
3081 u64 val64;
3082 struct __vxge_hw_virtualpath *vpath;
3083 struct vxge_hw_vpath_reg __iomem *vp_reg;
3084
3085 enum vxge_hw_status status = VXGE_HW_OK;
3086
3087 if (vp == NULL) {
3088 status = VXGE_HW_ERR_INVALID_HANDLE;
3089 goto exit;
3090 }
3091
3092 vpath = vp->vpath;
3093 vp_reg = vpath->vp_reg;
3094
3095 val64 = VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION(action) |
3096 VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL(rts_table) |
3097 VXGE_HW_RTS_ACCESS_STEER_CTRL_STROBE |
3098 VXGE_HW_RTS_ACCESS_STEER_CTRL_OFFSET(offset);
3099
3100 if ((rts_table ==
3101 VXGE_HW_RTS_ACS_STEER_CTRL_DATA_STRUCT_SEL_RTH_SOLO_IT) ||
3102 (rts_table ==
3103 VXGE_HW_RTS_ACS_STEER_CTRL_DATA_STRUCT_SEL_RTH_MULTI_IT) ||
3104 (rts_table ==
3105 VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_RTH_MASK) ||
3106 (rts_table ==
3107 VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_RTH_KEY)) {
3108 val64 = val64 | VXGE_HW_RTS_ACCESS_STEER_CTRL_TABLE_SEL;
3109 }
3110
3111 status = __vxge_hw_pio_mem_write64(val64,
3112 &vp_reg->rts_access_steer_ctrl,
3113 VXGE_HW_RTS_ACCESS_STEER_CTRL_STROBE,
3114 vpath->hldev->config.device_poll_millis);
3115
3116 if (status != VXGE_HW_OK)
3117 goto exit;
3118
3119 val64 = readq(&vp_reg->rts_access_steer_ctrl);
3120
3121 if (val64 & VXGE_HW_RTS_ACCESS_STEER_CTRL_RMACJ_STATUS) {
3122
3123 *data1 = readq(&vp_reg->rts_access_steer_data0);
3124
3125 if ((rts_table ==
3126 VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_DA) ||
3127 (rts_table ==
3128 VXGE_HW_RTS_ACS_STEER_CTRL_DATA_STRUCT_SEL_RTH_MULTI_IT)) {
3129 *data2 = readq(&vp_reg->rts_access_steer_data1);
3130 }
3131 status = VXGE_HW_OK;
3132 } else
3133 status = VXGE_HW_FAIL;
3134 exit:
3135 return status;
3136 }
3137
3138 /*
3139 * __vxge_hw_vpath_rts_table_set - Set the entries of RTS access tables
3140 */
3141 enum vxge_hw_status
3142 __vxge_hw_vpath_rts_table_set(
3143 struct __vxge_hw_vpath_handle *vp, u32 action, u32 rts_table,
3144 u32 offset, u64 data1, u64 data2)
3145 {
3146 u64 val64;
3147 struct __vxge_hw_virtualpath *vpath;
3148 enum vxge_hw_status status = VXGE_HW_OK;
3149 struct vxge_hw_vpath_reg __iomem *vp_reg;
3150
3151 if (vp == NULL) {
3152 status = VXGE_HW_ERR_INVALID_HANDLE;
3153 goto exit;
3154 }
3155
3156 vpath = vp->vpath;
3157 vp_reg = vpath->vp_reg;
3158
3159 writeq(data1, &vp_reg->rts_access_steer_data0);
3160 wmb();
3161
3162 if ((rts_table == VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_DA) ||
3163 (rts_table ==
3164 VXGE_HW_RTS_ACS_STEER_CTRL_DATA_STRUCT_SEL_RTH_MULTI_IT)) {
3165 writeq(data2, &vp_reg->rts_access_steer_data1);
3166 wmb();
3167 }
3168
3169 val64 = VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION(action) |
3170 VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL(rts_table) |
3171 VXGE_HW_RTS_ACCESS_STEER_CTRL_STROBE |
3172 VXGE_HW_RTS_ACCESS_STEER_CTRL_OFFSET(offset);
3173
3174 status = __vxge_hw_pio_mem_write64(val64,
3175 &vp_reg->rts_access_steer_ctrl,
3176 VXGE_HW_RTS_ACCESS_STEER_CTRL_STROBE,
3177 vpath->hldev->config.device_poll_millis);
3178
3179 if (status != VXGE_HW_OK)
3180 goto exit;
3181
3182 val64 = readq(&vp_reg->rts_access_steer_ctrl);
3183
3184 if (val64 & VXGE_HW_RTS_ACCESS_STEER_CTRL_RMACJ_STATUS)
3185 status = VXGE_HW_OK;
3186 else
3187 status = VXGE_HW_FAIL;
3188 exit:
3189 return status;
3190 }
3191
3192 /*
3193 * __vxge_hw_vpath_addr_get - Get the hw address entry for this vpath
3194 * from MAC address table.
3195 */
3196 enum vxge_hw_status
3197 __vxge_hw_vpath_addr_get(
3198 u32 vp_id, struct vxge_hw_vpath_reg __iomem *vpath_reg,
3199 u8 (macaddr)[ETH_ALEN], u8 (macaddr_mask)[ETH_ALEN])
3200 {
3201 u32 i;
3202 u64 val64;
3203 u64 data1 = 0ULL;
3204 u64 data2 = 0ULL;
3205 enum vxge_hw_status status = VXGE_HW_OK;
3206
3207 val64 = VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION(
3208 VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION_LIST_FIRST_ENTRY) |
3209 VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL(
3210 VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_DA) |
3211 VXGE_HW_RTS_ACCESS_STEER_CTRL_STROBE |
3212 VXGE_HW_RTS_ACCESS_STEER_CTRL_OFFSET(0);
3213
3214 status = __vxge_hw_pio_mem_write64(val64,
3215 &vpath_reg->rts_access_steer_ctrl,
3216 VXGE_HW_RTS_ACCESS_STEER_CTRL_STROBE,
3217 VXGE_HW_DEF_DEVICE_POLL_MILLIS);
3218
3219 if (status != VXGE_HW_OK)
3220 goto exit;
3221
3222 val64 = readq(&vpath_reg->rts_access_steer_ctrl);
3223
3224 if (val64 & VXGE_HW_RTS_ACCESS_STEER_CTRL_RMACJ_STATUS) {
3225
3226 data1 = readq(&vpath_reg->rts_access_steer_data0);
3227 data2 = readq(&vpath_reg->rts_access_steer_data1);
3228
3229 data1 = VXGE_HW_RTS_ACCESS_STEER_DATA0_GET_DA_MAC_ADDR(data1);
3230 data2 = VXGE_HW_RTS_ACCESS_STEER_DATA1_GET_DA_MAC_ADDR_MASK(
3231 data2);
3232
3233 for (i = ETH_ALEN; i > 0; i--) {
3234 macaddr[i-1] = (u8)(data1 & 0xFF);
3235 data1 >>= 8;
3236
3237 macaddr_mask[i-1] = (u8)(data2 & 0xFF);
3238 data2 >>= 8;
3239 }
3240 status = VXGE_HW_OK;
3241 } else
3242 status = VXGE_HW_FAIL;
3243 exit:
3244 return status;
3245 }
3246
3247 /*
3248 * vxge_hw_vpath_rts_rth_set - Set/configure RTS hashing.
3249 */
3250 enum vxge_hw_status vxge_hw_vpath_rts_rth_set(
3251 struct __vxge_hw_vpath_handle *vp,
3252 enum vxge_hw_rth_algoritms algorithm,
3253 struct vxge_hw_rth_hash_types *hash_type,
3254 u16 bucket_size)
3255 {
3256 u64 data0, data1;
3257 enum vxge_hw_status status = VXGE_HW_OK;
3258
3259 if (vp == NULL) {
3260 status = VXGE_HW_ERR_INVALID_HANDLE;
3261 goto exit;
3262 }
3263
3264 status = __vxge_hw_vpath_rts_table_get(vp,
3265 VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION_READ_ENTRY,
3266 VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_RTH_GEN_CFG,
3267 0, &data0, &data1);
3268
3269 data0 &= ~(VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_GEN_BUCKET_SIZE(0xf) |
3270 VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_GEN_ALG_SEL(0x3));
3271
3272 data0 |= VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_GEN_RTH_EN |
3273 VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_GEN_BUCKET_SIZE(bucket_size) |
3274 VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_GEN_ALG_SEL(algorithm);
3275
3276 if (hash_type->hash_type_tcpipv4_en)
3277 data0 |= VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_GEN_RTH_TCP_IPV4_EN;
3278
3279 if (hash_type->hash_type_ipv4_en)
3280 data0 |= VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_GEN_RTH_IPV4_EN;
3281
3282 if (hash_type->hash_type_tcpipv6_en)
3283 data0 |= VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_GEN_RTH_TCP_IPV6_EN;
3284
3285 if (hash_type->hash_type_ipv6_en)
3286 data0 |= VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_GEN_RTH_IPV6_EN;
3287
3288 if (hash_type->hash_type_tcpipv6ex_en)
3289 data0 |=
3290 VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_GEN_RTH_TCP_IPV6_EX_EN;
3291
3292 if (hash_type->hash_type_ipv6ex_en)
3293 data0 |= VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_GEN_RTH_IPV6_EX_EN;
3294
3295 if (VXGE_HW_RTS_ACCESS_STEER_DATA0_GET_RTH_GEN_ACTIVE_TABLE(data0))
3296 data0 &= ~VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_GEN_ACTIVE_TABLE;
3297 else
3298 data0 |= VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_GEN_ACTIVE_TABLE;
3299
3300 status = __vxge_hw_vpath_rts_table_set(vp,
3301 VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION_WRITE_ENTRY,
3302 VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_RTH_GEN_CFG,
3303 0, data0, 0);
3304 exit:
3305 return status;
3306 }
3307
3308 static void
3309 vxge_hw_rts_rth_data0_data1_get(u32 j, u64 *data0, u64 *data1,
3310 u16 flag, u8 *itable)
3311 {
3312 switch (flag) {
3313 case 1:
3314 *data0 = VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_ITEM0_BUCKET_NUM(j)|
3315 VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_ITEM0_ENTRY_EN |
3316 VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_ITEM0_BUCKET_DATA(
3317 itable[j]);
3318 case 2:
3319 *data0 |=
3320 VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_ITEM1_BUCKET_NUM(j)|
3321 VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_ITEM1_ENTRY_EN |
3322 VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_ITEM1_BUCKET_DATA(
3323 itable[j]);
3324 case 3:
3325 *data1 = VXGE_HW_RTS_ACCESS_STEER_DATA1_RTH_ITEM0_BUCKET_NUM(j)|
3326 VXGE_HW_RTS_ACCESS_STEER_DATA1_RTH_ITEM0_ENTRY_EN |
3327 VXGE_HW_RTS_ACCESS_STEER_DATA1_RTH_ITEM0_BUCKET_DATA(
3328 itable[j]);
3329 case 4:
3330 *data1 |=
3331 VXGE_HW_RTS_ACCESS_STEER_DATA1_RTH_ITEM1_BUCKET_NUM(j)|
3332 VXGE_HW_RTS_ACCESS_STEER_DATA1_RTH_ITEM1_ENTRY_EN |
3333 VXGE_HW_RTS_ACCESS_STEER_DATA1_RTH_ITEM1_BUCKET_DATA(
3334 itable[j]);
3335 default:
3336 return;
3337 }
3338 }
3339 /*
3340 * vxge_hw_vpath_rts_rth_itable_set - Set/configure indirection table (IT).
3341 */
3342 enum vxge_hw_status vxge_hw_vpath_rts_rth_itable_set(
3343 struct __vxge_hw_vpath_handle **vpath_handles,
3344 u32 vpath_count,
3345 u8 *mtable,
3346 u8 *itable,
3347 u32 itable_size)
3348 {
3349 u32 i, j, action, rts_table;
3350 u64 data0;
3351 u64 data1;
3352 u32 max_entries;
3353 enum vxge_hw_status status = VXGE_HW_OK;
3354 struct __vxge_hw_vpath_handle *vp = vpath_handles[0];
3355
3356 if (vp == NULL) {
3357 status = VXGE_HW_ERR_INVALID_HANDLE;
3358 goto exit;
3359 }
3360
3361 max_entries = (((u32)1) << itable_size);
3362
3363 if (vp->vpath->hldev->config.rth_it_type
3364 == VXGE_HW_RTH_IT_TYPE_SOLO_IT) {
3365 action = VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION_WRITE_ENTRY;
3366 rts_table =
3367 VXGE_HW_RTS_ACS_STEER_CTRL_DATA_STRUCT_SEL_RTH_SOLO_IT;
3368
3369 for (j = 0; j < max_entries; j++) {
3370
3371 data1 = 0;
3372
3373 data0 =
3374 VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_SOLO_IT_BUCKET_DATA(
3375 itable[j]);
3376
3377 status = __vxge_hw_vpath_rts_table_set(vpath_handles[0],
3378 action, rts_table, j, data0, data1);
3379
3380 if (status != VXGE_HW_OK)
3381 goto exit;
3382 }
3383
3384 for (j = 0; j < max_entries; j++) {
3385
3386 data1 = 0;
3387
3388 data0 =
3389 VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_SOLO_IT_ENTRY_EN |
3390 VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_SOLO_IT_BUCKET_DATA(
3391 itable[j]);
3392
3393 status = __vxge_hw_vpath_rts_table_set(
3394 vpath_handles[mtable[itable[j]]], action,
3395 rts_table, j, data0, data1);
3396
3397 if (status != VXGE_HW_OK)
3398 goto exit;
3399 }
3400 } else {
3401 action = VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION_WRITE_ENTRY;
3402 rts_table =
3403 VXGE_HW_RTS_ACS_STEER_CTRL_DATA_STRUCT_SEL_RTH_MULTI_IT;
3404 for (i = 0; i < vpath_count; i++) {
3405
3406 for (j = 0; j < max_entries;) {
3407
3408 data0 = 0;
3409 data1 = 0;
3410
3411 while (j < max_entries) {
3412 if (mtable[itable[j]] != i) {
3413 j++;
3414 continue;
3415 }
3416 vxge_hw_rts_rth_data0_data1_get(j,
3417 &data0, &data1, 1, itable);
3418 j++;
3419 break;
3420 }
3421
3422 while (j < max_entries) {
3423 if (mtable[itable[j]] != i) {
3424 j++;
3425 continue;
3426 }
3427 vxge_hw_rts_rth_data0_data1_get(j,
3428 &data0, &data1, 2, itable);
3429 j++;
3430 break;
3431 }
3432
3433 while (j < max_entries) {
3434 if (mtable[itable[j]] != i) {
3435 j++;
3436 continue;
3437 }
3438 vxge_hw_rts_rth_data0_data1_get(j,
3439 &data0, &data1, 3, itable);
3440 j++;
3441 break;
3442 }
3443
3444 while (j < max_entries) {
3445 if (mtable[itable[j]] != i) {
3446 j++;
3447 continue;
3448 }
3449 vxge_hw_rts_rth_data0_data1_get(j,
3450 &data0, &data1, 4, itable);
3451 j++;
3452 break;
3453 }
3454
3455 if (data0 != 0) {
3456 status = __vxge_hw_vpath_rts_table_set(
3457 vpath_handles[i],
3458 action, rts_table,
3459 0, data0, data1);
3460
3461 if (status != VXGE_HW_OK)
3462 goto exit;
3463 }
3464 }
3465 }
3466 }
3467 exit:
3468 return status;
3469 }
3470
3471 /**
3472 * vxge_hw_vpath_check_leak - Check for memory leak
3473 * @ringh: Handle to the ring object used for receive
3474 *
3475 * If PRC_RXD_DOORBELL_VPn.NEW_QW_CNT is larger or equal to
3476 * PRC_CFG6_VPn.RXD_SPAT then a leak has occurred.
3477 * Returns: VXGE_HW_FAIL, if leak has occurred.
3478 *
3479 */
3480 enum vxge_hw_status
3481 vxge_hw_vpath_check_leak(struct __vxge_hw_ring *ring)
3482 {
3483 enum vxge_hw_status status = VXGE_HW_OK;
3484 u64 rxd_new_count, rxd_spat;
3485
3486 if (ring == NULL)
3487 return status;
3488
3489 rxd_new_count = readl(&ring->vp_reg->prc_rxd_doorbell);
3490 rxd_spat = readq(&ring->vp_reg->prc_cfg6);
3491 rxd_spat = VXGE_HW_PRC_CFG6_RXD_SPAT(rxd_spat);
3492
3493 if (rxd_new_count >= rxd_spat)
3494 status = VXGE_HW_FAIL;
3495
3496 return status;
3497 }
3498
3499 /*
3500 * __vxge_hw_vpath_mgmt_read
3501 * This routine reads the vpath_mgmt registers
3502 */
3503 static enum vxge_hw_status
3504 __vxge_hw_vpath_mgmt_read(
3505 struct __vxge_hw_device *hldev,
3506 struct __vxge_hw_virtualpath *vpath)
3507 {
3508 u32 i, mtu = 0, max_pyld = 0;
3509 u64 val64;
3510 enum vxge_hw_status status = VXGE_HW_OK;
3511
3512 for (i = 0; i < VXGE_HW_MAC_MAX_MAC_PORT_ID; i++) {
3513
3514 val64 = readq(&vpath->vpmgmt_reg->
3515 rxmac_cfg0_port_vpmgmt_clone[i]);
3516 max_pyld =
3517 (u32)
3518 VXGE_HW_RXMAC_CFG0_PORT_VPMGMT_CLONE_GET_MAX_PYLD_LEN
3519 (val64);
3520 if (mtu < max_pyld)
3521 mtu = max_pyld;
3522 }
3523
3524 vpath->max_mtu = mtu + VXGE_HW_MAC_HEADER_MAX_SIZE;
3525
3526 val64 = readq(&vpath->vpmgmt_reg->xmac_vsport_choices_vp);
3527
3528 for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) {
3529 if (val64 & vxge_mBIT(i))
3530 vpath->vsport_number = i;
3531 }
3532
3533 val64 = readq(&vpath->vpmgmt_reg->xgmac_gen_status_vpmgmt_clone);
3534
3535 if (val64 & VXGE_HW_XGMAC_GEN_STATUS_VPMGMT_CLONE_XMACJ_NTWK_OK)
3536 VXGE_HW_DEVICE_LINK_STATE_SET(vpath->hldev, VXGE_HW_LINK_UP);
3537 else
3538 VXGE_HW_DEVICE_LINK_STATE_SET(vpath->hldev, VXGE_HW_LINK_DOWN);
3539
3540 return status;
3541 }
3542
3543 /*
3544 * __vxge_hw_vpath_reset_check - Check if resetting the vpath completed
3545 * This routine checks the vpath_rst_in_prog register to see if
3546 * adapter completed the reset process for the vpath
3547 */
3548 enum vxge_hw_status
3549 __vxge_hw_vpath_reset_check(struct __vxge_hw_virtualpath *vpath)
3550 {
3551 enum vxge_hw_status status;
3552
3553 status = __vxge_hw_device_register_poll(
3554 &vpath->hldev->common_reg->vpath_rst_in_prog,
3555 VXGE_HW_VPATH_RST_IN_PROG_VPATH_RST_IN_PROG(
3556 1 << (16 - vpath->vp_id)),
3557 vpath->hldev->config.device_poll_millis);
3558
3559 return status;
3560 }
3561
3562 /*
3563 * __vxge_hw_vpath_reset
3564 * This routine resets the vpath on the device
3565 */
3566 enum vxge_hw_status
3567 __vxge_hw_vpath_reset(struct __vxge_hw_device *hldev, u32 vp_id)
3568 {
3569 u64 val64;
3570 enum vxge_hw_status status = VXGE_HW_OK;
3571
3572 val64 = VXGE_HW_CMN_RSTHDLR_CFG0_SW_RESET_VPATH(1 << (16 - vp_id));
3573
3574 __vxge_hw_pio_mem_write32_upper((u32)vxge_bVALn(val64, 0, 32),
3575 &hldev->common_reg->cmn_rsthdlr_cfg0);
3576
3577 return status;
3578 }
3579
3580 /*
3581 * __vxge_hw_vpath_sw_reset
3582 * This routine resets the vpath structures
3583 */
3584 enum vxge_hw_status
3585 __vxge_hw_vpath_sw_reset(struct __vxge_hw_device *hldev, u32 vp_id)
3586 {
3587 enum vxge_hw_status status = VXGE_HW_OK;
3588 struct __vxge_hw_virtualpath *vpath;
3589
3590 vpath = (struct __vxge_hw_virtualpath *)&hldev->virtual_paths[vp_id];
3591
3592 if (vpath->ringh) {
3593 status = __vxge_hw_ring_reset(vpath->ringh);
3594 if (status != VXGE_HW_OK)
3595 goto exit;
3596 }
3597
3598 if (vpath->fifoh)
3599 status = __vxge_hw_fifo_reset(vpath->fifoh);
3600 exit:
3601 return status;
3602 }
3603
3604 /*
3605 * __vxge_hw_vpath_prc_configure
3606 * This routine configures the prc registers of virtual path using the config
3607 * passed
3608 */
3609 void
3610 __vxge_hw_vpath_prc_configure(struct __vxge_hw_device *hldev, u32 vp_id)
3611 {
3612 u64 val64;
3613 struct __vxge_hw_virtualpath *vpath;
3614 struct vxge_hw_vp_config *vp_config;
3615 struct vxge_hw_vpath_reg __iomem *vp_reg;
3616
3617 vpath = &hldev->virtual_paths[vp_id];
3618 vp_reg = vpath->vp_reg;
3619 vp_config = vpath->vp_config;
3620
3621 if (vp_config->ring.enable == VXGE_HW_RING_DISABLE)
3622 return;
3623
3624 val64 = readq(&vp_reg->prc_cfg1);
3625 val64 |= VXGE_HW_PRC_CFG1_RTI_TINT_DISABLE;
3626 writeq(val64, &vp_reg->prc_cfg1);
3627
3628 val64 = readq(&vpath->vp_reg->prc_cfg6);
3629 val64 |= VXGE_HW_PRC_CFG6_DOORBELL_MODE_EN;
3630 writeq(val64, &vpath->vp_reg->prc_cfg6);
3631
3632 val64 = readq(&vp_reg->prc_cfg7);
3633
3634 if (vpath->vp_config->ring.scatter_mode !=
3635 VXGE_HW_RING_SCATTER_MODE_USE_FLASH_DEFAULT) {
3636
3637 val64 &= ~VXGE_HW_PRC_CFG7_SCATTER_MODE(0x3);
3638
3639 switch (vpath->vp_config->ring.scatter_mode) {
3640 case VXGE_HW_RING_SCATTER_MODE_A:
3641 val64 |= VXGE_HW_PRC_CFG7_SCATTER_MODE(
3642 VXGE_HW_PRC_CFG7_SCATTER_MODE_A);
3643 break;
3644 case VXGE_HW_RING_SCATTER_MODE_B:
3645 val64 |= VXGE_HW_PRC_CFG7_SCATTER_MODE(
3646 VXGE_HW_PRC_CFG7_SCATTER_MODE_B);
3647 break;
3648 case VXGE_HW_RING_SCATTER_MODE_C:
3649 val64 |= VXGE_HW_PRC_CFG7_SCATTER_MODE(
3650 VXGE_HW_PRC_CFG7_SCATTER_MODE_C);
3651 break;
3652 }
3653 }
3654
3655 writeq(val64, &vp_reg->prc_cfg7);
3656
3657 writeq(VXGE_HW_PRC_CFG5_RXD0_ADD(
3658 __vxge_hw_ring_first_block_address_get(
3659 vpath->ringh) >> 3), &vp_reg->prc_cfg5);
3660
3661 val64 = readq(&vp_reg->prc_cfg4);
3662 val64 |= VXGE_HW_PRC_CFG4_IN_SVC;
3663 val64 &= ~VXGE_HW_PRC_CFG4_RING_MODE(0x3);
3664
3665 val64 |= VXGE_HW_PRC_CFG4_RING_MODE(
3666 VXGE_HW_PRC_CFG4_RING_MODE_ONE_BUFFER);
3667
3668 if (hldev->config.rth_en == VXGE_HW_RTH_DISABLE)
3669 val64 |= VXGE_HW_PRC_CFG4_RTH_DISABLE;
3670 else
3671 val64 &= ~VXGE_HW_PRC_CFG4_RTH_DISABLE;
3672
3673 writeq(val64, &vp_reg->prc_cfg4);
3674 return;
3675 }
3676
3677 /*
3678 * __vxge_hw_vpath_kdfc_configure
3679 * This routine configures the kdfc registers of virtual path using the
3680 * config passed
3681 */
3682 enum vxge_hw_status
3683 __vxge_hw_vpath_kdfc_configure(struct __vxge_hw_device *hldev, u32 vp_id)
3684 {
3685 u64 val64;
3686 u64 vpath_stride;
3687 enum vxge_hw_status status = VXGE_HW_OK;
3688 struct __vxge_hw_virtualpath *vpath;
3689 struct vxge_hw_vpath_reg __iomem *vp_reg;
3690
3691 vpath = &hldev->virtual_paths[vp_id];
3692 vp_reg = vpath->vp_reg;
3693 status = __vxge_hw_kdfc_swapper_set(hldev->legacy_reg, vp_reg);
3694
3695 if (status != VXGE_HW_OK)
3696 goto exit;
3697
3698 val64 = readq(&vp_reg->kdfc_drbl_triplet_total);
3699
3700 vpath->max_kdfc_db =
3701 (u32)VXGE_HW_KDFC_DRBL_TRIPLET_TOTAL_GET_KDFC_MAX_SIZE(
3702 val64+1)/2;
3703
3704 if (vpath->vp_config->fifo.enable == VXGE_HW_FIFO_ENABLE) {
3705
3706 vpath->max_nofl_db = vpath->max_kdfc_db;
3707
3708 if (vpath->max_nofl_db <
3709 ((vpath->vp_config->fifo.memblock_size /
3710 (vpath->vp_config->fifo.max_frags *
3711 sizeof(struct vxge_hw_fifo_txd))) *
3712 vpath->vp_config->fifo.fifo_blocks)) {
3713
3714 return VXGE_HW_BADCFG_FIFO_BLOCKS;
3715 }
3716 val64 = VXGE_HW_KDFC_FIFO_TRPL_PARTITION_LENGTH_0(
3717 (vpath->max_nofl_db*2)-1);
3718 }
3719
3720 writeq(val64, &vp_reg->kdfc_fifo_trpl_partition);
3721
3722 writeq(VXGE_HW_KDFC_FIFO_TRPL_CTRL_TRIPLET_ENABLE,
3723 &vp_reg->kdfc_fifo_trpl_ctrl);
3724
3725 val64 = readq(&vp_reg->kdfc_trpl_fifo_0_ctrl);
3726
3727 val64 &= ~(VXGE_HW_KDFC_TRPL_FIFO_0_CTRL_MODE(0x3) |
3728 VXGE_HW_KDFC_TRPL_FIFO_0_CTRL_SELECT(0xFF));
3729
3730 val64 |= VXGE_HW_KDFC_TRPL_FIFO_0_CTRL_MODE(
3731 VXGE_HW_KDFC_TRPL_FIFO_0_CTRL_MODE_NON_OFFLOAD_ONLY) |
3732 #ifndef __BIG_ENDIAN
3733 VXGE_HW_KDFC_TRPL_FIFO_0_CTRL_SWAP_EN |
3734 #endif
3735 VXGE_HW_KDFC_TRPL_FIFO_0_CTRL_SELECT(0);
3736
3737 writeq(val64, &vp_reg->kdfc_trpl_fifo_0_ctrl);
3738 writeq((u64)0, &vp_reg->kdfc_trpl_fifo_0_wb_address);
3739 wmb();
3740 vpath_stride = readq(&hldev->toc_reg->toc_kdfc_vpath_stride);
3741
3742 vpath->nofl_db =
3743 (struct __vxge_hw_non_offload_db_wrapper __iomem *)
3744 (hldev->kdfc + (vp_id *
3745 VXGE_HW_TOC_KDFC_VPATH_STRIDE_GET_TOC_KDFC_VPATH_STRIDE(
3746 vpath_stride)));
3747 exit:
3748 return status;
3749 }
3750
3751 /*
3752 * __vxge_hw_vpath_mac_configure
3753 * This routine configures the mac of virtual path using the config passed
3754 */
3755 enum vxge_hw_status
3756 __vxge_hw_vpath_mac_configure(struct __vxge_hw_device *hldev, u32 vp_id)
3757 {
3758 u64 val64;
3759 enum vxge_hw_status status = VXGE_HW_OK;
3760 struct __vxge_hw_virtualpath *vpath;
3761 struct vxge_hw_vp_config *vp_config;
3762 struct vxge_hw_vpath_reg __iomem *vp_reg;
3763
3764 vpath = &hldev->virtual_paths[vp_id];
3765 vp_reg = vpath->vp_reg;
3766 vp_config = vpath->vp_config;
3767
3768 writeq(VXGE_HW_XMAC_VSPORT_CHOICE_VSPORT_NUMBER(
3769 vpath->vsport_number), &vp_reg->xmac_vsport_choice);
3770
3771 if (vp_config->ring.enable == VXGE_HW_RING_ENABLE) {
3772
3773 val64 = readq(&vp_reg->xmac_rpa_vcfg);
3774
3775 if (vp_config->rpa_strip_vlan_tag !=
3776 VXGE_HW_VPATH_RPA_STRIP_VLAN_TAG_USE_FLASH_DEFAULT) {
3777 if (vp_config->rpa_strip_vlan_tag)
3778 val64 |= VXGE_HW_XMAC_RPA_VCFG_STRIP_VLAN_TAG;
3779 else
3780 val64 &= ~VXGE_HW_XMAC_RPA_VCFG_STRIP_VLAN_TAG;
3781 }
3782
3783 writeq(val64, &vp_reg->xmac_rpa_vcfg);
3784 val64 = readq(&vp_reg->rxmac_vcfg0);
3785
3786 if (vp_config->mtu !=
3787 VXGE_HW_VPATH_USE_FLASH_DEFAULT_INITIAL_MTU) {
3788 val64 &= ~VXGE_HW_RXMAC_VCFG0_RTS_MAX_FRM_LEN(0x3fff);
3789 if ((vp_config->mtu +
3790 VXGE_HW_MAC_HEADER_MAX_SIZE) < vpath->max_mtu)
3791 val64 |= VXGE_HW_RXMAC_VCFG0_RTS_MAX_FRM_LEN(
3792 vp_config->mtu +
3793 VXGE_HW_MAC_HEADER_MAX_SIZE);
3794 else
3795 val64 |= VXGE_HW_RXMAC_VCFG0_RTS_MAX_FRM_LEN(
3796 vpath->max_mtu);
3797 }
3798
3799 writeq(val64, &vp_reg->rxmac_vcfg0);
3800
3801 val64 = readq(&vp_reg->rxmac_vcfg1);
3802
3803 val64 &= ~(VXGE_HW_RXMAC_VCFG1_RTS_RTH_MULTI_IT_BD_MODE(0x3) |
3804 VXGE_HW_RXMAC_VCFG1_RTS_RTH_MULTI_IT_EN_MODE);
3805
3806 if (hldev->config.rth_it_type ==
3807 VXGE_HW_RTH_IT_TYPE_MULTI_IT) {
3808 val64 |= VXGE_HW_RXMAC_VCFG1_RTS_RTH_MULTI_IT_BD_MODE(
3809 0x2) |
3810 VXGE_HW_RXMAC_VCFG1_RTS_RTH_MULTI_IT_EN_MODE;
3811 }
3812
3813 writeq(val64, &vp_reg->rxmac_vcfg1);
3814 }
3815 return status;
3816 }
3817
3818 /*
3819 * __vxge_hw_vpath_tim_configure
3820 * This routine configures the tim registers of virtual path using the config
3821 * passed
3822 */
3823 enum vxge_hw_status
3824 __vxge_hw_vpath_tim_configure(struct __vxge_hw_device *hldev, u32 vp_id)
3825 {
3826 u64 val64;
3827 enum vxge_hw_status status = VXGE_HW_OK;
3828 struct __vxge_hw_virtualpath *vpath;
3829 struct vxge_hw_vpath_reg __iomem *vp_reg;
3830 struct vxge_hw_vp_config *config;
3831
3832 vpath = &hldev->virtual_paths[vp_id];
3833 vp_reg = vpath->vp_reg;
3834 config = vpath->vp_config;
3835
3836 writeq((u64)0, &vp_reg->tim_dest_addr);
3837 writeq((u64)0, &vp_reg->tim_vpath_map);
3838 writeq((u64)0, &vp_reg->tim_bitmap);
3839 writeq((u64)0, &vp_reg->tim_remap);
3840
3841 if (config->ring.enable == VXGE_HW_RING_ENABLE)
3842 writeq(VXGE_HW_TIM_RING_ASSN_INT_NUM(
3843 (vp_id * VXGE_HW_MAX_INTR_PER_VP) +
3844 VXGE_HW_VPATH_INTR_RX), &vp_reg->tim_ring_assn);
3845
3846 val64 = readq(&vp_reg->tim_pci_cfg);
3847 val64 |= VXGE_HW_TIM_PCI_CFG_ADD_PAD;
3848 writeq(val64, &vp_reg->tim_pci_cfg);
3849
3850 if (config->fifo.enable == VXGE_HW_FIFO_ENABLE) {
3851
3852 val64 = readq(&vp_reg->tim_cfg1_int_num[VXGE_HW_VPATH_INTR_TX]);
3853
3854 if (config->tti.btimer_val != VXGE_HW_USE_FLASH_DEFAULT) {
3855 val64 &= ~VXGE_HW_TIM_CFG1_INT_NUM_BTIMER_VAL(
3856 0x3ffffff);
3857 val64 |= VXGE_HW_TIM_CFG1_INT_NUM_BTIMER_VAL(
3858 config->tti.btimer_val);
3859 }
3860
3861 val64 &= ~VXGE_HW_TIM_CFG1_INT_NUM_BITMP_EN;
3862
3863 if (config->tti.timer_ac_en != VXGE_HW_USE_FLASH_DEFAULT) {
3864 if (config->tti.timer_ac_en)
3865 val64 |= VXGE_HW_TIM_CFG1_INT_NUM_TIMER_AC;
3866 else
3867 val64 &= ~VXGE_HW_TIM_CFG1_INT_NUM_TIMER_AC;
3868 }
3869
3870 if (config->tti.timer_ci_en != VXGE_HW_USE_FLASH_DEFAULT) {
3871 if (config->tti.timer_ci_en)
3872 val64 |= VXGE_HW_TIM_CFG1_INT_NUM_TIMER_CI;
3873 else
3874 val64 &= ~VXGE_HW_TIM_CFG1_INT_NUM_TIMER_CI;
3875 }
3876
3877 if (config->tti.urange_a != VXGE_HW_USE_FLASH_DEFAULT) {
3878 val64 &= ~VXGE_HW_TIM_CFG1_INT_NUM_URNG_A(0x3f);
3879 val64 |= VXGE_HW_TIM_CFG1_INT_NUM_URNG_A(
3880 config->tti.urange_a);
3881 }
3882
3883 if (config->tti.urange_b != VXGE_HW_USE_FLASH_DEFAULT) {
3884 val64 &= ~VXGE_HW_TIM_CFG1_INT_NUM_URNG_B(0x3f);
3885 val64 |= VXGE_HW_TIM_CFG1_INT_NUM_URNG_B(
3886 config->tti.urange_b);
3887 }
3888
3889 if (config->tti.urange_c != VXGE_HW_USE_FLASH_DEFAULT) {
3890 val64 &= ~VXGE_HW_TIM_CFG1_INT_NUM_URNG_C(0x3f);
3891 val64 |= VXGE_HW_TIM_CFG1_INT_NUM_URNG_C(
3892 config->tti.urange_c);
3893 }
3894
3895 writeq(val64, &vp_reg->tim_cfg1_int_num[VXGE_HW_VPATH_INTR_TX]);
3896 val64 = readq(&vp_reg->tim_cfg2_int_num[VXGE_HW_VPATH_INTR_TX]);
3897
3898 if (config->tti.uec_a != VXGE_HW_USE_FLASH_DEFAULT) {
3899 val64 &= ~VXGE_HW_TIM_CFG2_INT_NUM_UEC_A(0xffff);
3900 val64 |= VXGE_HW_TIM_CFG2_INT_NUM_UEC_A(
3901 config->tti.uec_a);
3902 }
3903
3904 if (config->tti.uec_b != VXGE_HW_USE_FLASH_DEFAULT) {
3905 val64 &= ~VXGE_HW_TIM_CFG2_INT_NUM_UEC_B(0xffff);
3906 val64 |= VXGE_HW_TIM_CFG2_INT_NUM_UEC_B(
3907 config->tti.uec_b);
3908 }
3909
3910 if (config->tti.uec_c != VXGE_HW_USE_FLASH_DEFAULT) {
3911 val64 &= ~VXGE_HW_TIM_CFG2_INT_NUM_UEC_C(0xffff);
3912 val64 |= VXGE_HW_TIM_CFG2_INT_NUM_UEC_C(
3913 config->tti.uec_c);
3914 }
3915
3916 if (config->tti.uec_d != VXGE_HW_USE_FLASH_DEFAULT) {
3917 val64 &= ~VXGE_HW_TIM_CFG2_INT_NUM_UEC_D(0xffff);
3918 val64 |= VXGE_HW_TIM_CFG2_INT_NUM_UEC_D(
3919 config->tti.uec_d);
3920 }
3921
3922 writeq(val64, &vp_reg->tim_cfg2_int_num[VXGE_HW_VPATH_INTR_TX]);
3923 val64 = readq(&vp_reg->tim_cfg3_int_num[VXGE_HW_VPATH_INTR_TX]);
3924
3925 if (config->tti.timer_ri_en != VXGE_HW_USE_FLASH_DEFAULT) {
3926 if (config->tti.timer_ri_en)
3927 val64 |= VXGE_HW_TIM_CFG3_INT_NUM_TIMER_RI;
3928 else
3929 val64 &= ~VXGE_HW_TIM_CFG3_INT_NUM_TIMER_RI;
3930 }
3931
3932 if (config->tti.rtimer_val != VXGE_HW_USE_FLASH_DEFAULT) {
3933 val64 &= ~VXGE_HW_TIM_CFG3_INT_NUM_RTIMER_VAL(
3934 0x3ffffff);
3935 val64 |= VXGE_HW_TIM_CFG3_INT_NUM_RTIMER_VAL(
3936 config->tti.rtimer_val);
3937 }
3938
3939 if (config->tti.util_sel != VXGE_HW_USE_FLASH_DEFAULT) {
3940 val64 &= ~VXGE_HW_TIM_CFG3_INT_NUM_UTIL_SEL(0x3f);
3941 val64 |= VXGE_HW_TIM_CFG3_INT_NUM_UTIL_SEL(
3942 config->tti.util_sel);
3943 }
3944
3945 if (config->tti.ltimer_val != VXGE_HW_USE_FLASH_DEFAULT) {
3946 val64 &= ~VXGE_HW_TIM_CFG3_INT_NUM_LTIMER_VAL(
3947 0x3ffffff);
3948 val64 |= VXGE_HW_TIM_CFG3_INT_NUM_LTIMER_VAL(
3949 config->tti.ltimer_val);
3950 }
3951
3952 writeq(val64, &vp_reg->tim_cfg3_int_num[VXGE_HW_VPATH_INTR_TX]);
3953 }
3954
3955 if (config->ring.enable == VXGE_HW_RING_ENABLE) {
3956
3957 val64 = readq(&vp_reg->tim_cfg1_int_num[VXGE_HW_VPATH_INTR_RX]);
3958
3959 if (config->rti.btimer_val != VXGE_HW_USE_FLASH_DEFAULT) {
3960 val64 &= ~VXGE_HW_TIM_CFG1_INT_NUM_BTIMER_VAL(
3961 0x3ffffff);
3962 val64 |= VXGE_HW_TIM_CFG1_INT_NUM_BTIMER_VAL(
3963 config->rti.btimer_val);
3964 }
3965
3966 val64 &= ~VXGE_HW_TIM_CFG1_INT_NUM_BITMP_EN;
3967
3968 if (config->rti.timer_ac_en != VXGE_HW_USE_FLASH_DEFAULT) {
3969 if (config->rti.timer_ac_en)
3970 val64 |= VXGE_HW_TIM_CFG1_INT_NUM_TIMER_AC;
3971 else
3972 val64 &= ~VXGE_HW_TIM_CFG1_INT_NUM_TIMER_AC;
3973 }
3974
3975 if (config->rti.timer_ci_en != VXGE_HW_USE_FLASH_DEFAULT) {
3976 if (config->rti.timer_ci_en)
3977 val64 |= VXGE_HW_TIM_CFG1_INT_NUM_TIMER_CI;
3978 else
3979 val64 &= ~VXGE_HW_TIM_CFG1_INT_NUM_TIMER_CI;
3980 }
3981
3982 if (config->rti.urange_a != VXGE_HW_USE_FLASH_DEFAULT) {
3983 val64 &= ~VXGE_HW_TIM_CFG1_INT_NUM_URNG_A(0x3f);
3984 val64 |= VXGE_HW_TIM_CFG1_INT_NUM_URNG_A(
3985 config->rti.urange_a);
3986 }
3987
3988 if (config->rti.urange_b != VXGE_HW_USE_FLASH_DEFAULT) {
3989 val64 &= ~VXGE_HW_TIM_CFG1_INT_NUM_URNG_B(0x3f);
3990 val64 |= VXGE_HW_TIM_CFG1_INT_NUM_URNG_B(
3991 config->rti.urange_b);
3992 }
3993
3994 if (config->rti.urange_c != VXGE_HW_USE_FLASH_DEFAULT) {
3995 val64 &= ~VXGE_HW_TIM_CFG1_INT_NUM_URNG_C(0x3f);
3996 val64 |= VXGE_HW_TIM_CFG1_INT_NUM_URNG_C(
3997 config->rti.urange_c);
3998 }
3999
4000 writeq(val64, &vp_reg->tim_cfg1_int_num[VXGE_HW_VPATH_INTR_RX]);
4001 val64 = readq(&vp_reg->tim_cfg2_int_num[VXGE_HW_VPATH_INTR_RX]);
4002
4003 if (config->rti.uec_a != VXGE_HW_USE_FLASH_DEFAULT) {
4004 val64 &= ~VXGE_HW_TIM_CFG2_INT_NUM_UEC_A(0xffff);
4005 val64 |= VXGE_HW_TIM_CFG2_INT_NUM_UEC_A(
4006 config->rti.uec_a);
4007 }
4008
4009 if (config->rti.uec_b != VXGE_HW_USE_FLASH_DEFAULT) {
4010 val64 &= ~VXGE_HW_TIM_CFG2_INT_NUM_UEC_B(0xffff);
4011 val64 |= VXGE_HW_TIM_CFG2_INT_NUM_UEC_B(
4012 config->rti.uec_b);
4013 }
4014
4015 if (config->rti.uec_c != VXGE_HW_USE_FLASH_DEFAULT) {
4016 val64 &= ~VXGE_HW_TIM_CFG2_INT_NUM_UEC_C(0xffff);
4017 val64 |= VXGE_HW_TIM_CFG2_INT_NUM_UEC_C(
4018 config->rti.uec_c);
4019 }
4020
4021 if (config->rti.uec_d != VXGE_HW_USE_FLASH_DEFAULT) {
4022 val64 &= ~VXGE_HW_TIM_CFG2_INT_NUM_UEC_D(0xffff);
4023 val64 |= VXGE_HW_TIM_CFG2_INT_NUM_UEC_D(
4024 config->rti.uec_d);
4025 }
4026
4027 writeq(val64, &vp_reg->tim_cfg2_int_num[VXGE_HW_VPATH_INTR_RX]);
4028 val64 = readq(&vp_reg->tim_cfg3_int_num[VXGE_HW_VPATH_INTR_RX]);
4029
4030 if (config->rti.timer_ri_en != VXGE_HW_USE_FLASH_DEFAULT) {
4031 if (config->rti.timer_ri_en)
4032 val64 |= VXGE_HW_TIM_CFG3_INT_NUM_TIMER_RI;
4033 else
4034 val64 &= ~VXGE_HW_TIM_CFG3_INT_NUM_TIMER_RI;
4035 }
4036
4037 if (config->rti.rtimer_val != VXGE_HW_USE_FLASH_DEFAULT) {
4038 val64 &= ~VXGE_HW_TIM_CFG3_INT_NUM_RTIMER_VAL(
4039 0x3ffffff);
4040 val64 |= VXGE_HW_TIM_CFG3_INT_NUM_RTIMER_VAL(
4041 config->rti.rtimer_val);
4042 }
4043
4044 if (config->rti.util_sel != VXGE_HW_USE_FLASH_DEFAULT) {
4045 val64 &= ~VXGE_HW_TIM_CFG3_INT_NUM_UTIL_SEL(0x3f);
4046 val64 |= VXGE_HW_TIM_CFG3_INT_NUM_UTIL_SEL(
4047 config->rti.util_sel);
4048 }
4049
4050 if (config->rti.ltimer_val != VXGE_HW_USE_FLASH_DEFAULT) {
4051 val64 &= ~VXGE_HW_TIM_CFG3_INT_NUM_LTIMER_VAL(
4052 0x3ffffff);
4053 val64 |= VXGE_HW_TIM_CFG3_INT_NUM_LTIMER_VAL(
4054 config->rti.ltimer_val);
4055 }
4056
4057 writeq(val64, &vp_reg->tim_cfg3_int_num[VXGE_HW_VPATH_INTR_RX]);
4058 }
4059
4060 val64 = 0;
4061 writeq(val64, &vp_reg->tim_cfg1_int_num[VXGE_HW_VPATH_INTR_EINTA]);
4062 writeq(val64, &vp_reg->tim_cfg2_int_num[VXGE_HW_VPATH_INTR_EINTA]);
4063 writeq(val64, &vp_reg->tim_cfg3_int_num[VXGE_HW_VPATH_INTR_EINTA]);
4064 writeq(val64, &vp_reg->tim_cfg1_int_num[VXGE_HW_VPATH_INTR_BMAP]);
4065 writeq(val64, &vp_reg->tim_cfg2_int_num[VXGE_HW_VPATH_INTR_BMAP]);
4066 writeq(val64, &vp_reg->tim_cfg3_int_num[VXGE_HW_VPATH_INTR_BMAP]);
4067
4068 return status;
4069 }
4070
4071 /*
4072 * __vxge_hw_vpath_initialize
4073 * This routine is the final phase of init which initializes the
4074 * registers of the vpath using the configuration passed.
4075 */
4076 enum vxge_hw_status
4077 __vxge_hw_vpath_initialize(struct __vxge_hw_device *hldev, u32 vp_id)
4078 {
4079 u64 val64;
4080 u32 val32;
4081 enum vxge_hw_status status = VXGE_HW_OK;
4082 struct __vxge_hw_virtualpath *vpath;
4083 struct vxge_hw_vpath_reg __iomem *vp_reg;
4084
4085 vpath = &hldev->virtual_paths[vp_id];
4086
4087 if (!(hldev->vpath_assignments & vxge_mBIT(vp_id))) {
4088 status = VXGE_HW_ERR_VPATH_NOT_AVAILABLE;
4089 goto exit;
4090 }
4091 vp_reg = vpath->vp_reg;
4092
4093 status = __vxge_hw_vpath_swapper_set(vpath->vp_reg);
4094
4095 if (status != VXGE_HW_OK)
4096 goto exit;
4097
4098 status = __vxge_hw_vpath_mac_configure(hldev, vp_id);
4099
4100 if (status != VXGE_HW_OK)
4101 goto exit;
4102
4103 status = __vxge_hw_vpath_kdfc_configure(hldev, vp_id);
4104
4105 if (status != VXGE_HW_OK)
4106 goto exit;
4107
4108 status = __vxge_hw_vpath_tim_configure(hldev, vp_id);
4109
4110 if (status != VXGE_HW_OK)
4111 goto exit;
4112
4113 writeq(0, &vp_reg->gendma_int);
4114
4115 val64 = readq(&vp_reg->rtdma_rd_optimization_ctrl);
4116
4117 /* Get MRRS value from device control */
4118 status = __vxge_hw_vpath_pci_read(vpath, 1, 0x78, &val32);
4119
4120 if (status == VXGE_HW_OK) {
4121 val32 = (val32 & VXGE_HW_PCI_EXP_DEVCTL_READRQ) >> 12;
4122 val64 &=
4123 ~(VXGE_HW_RTDMA_RD_OPTIMIZATION_CTRL_FB_FILL_THRESH(7));
4124 val64 |=
4125 VXGE_HW_RTDMA_RD_OPTIMIZATION_CTRL_FB_FILL_THRESH(val32);
4126
4127 val64 |= VXGE_HW_RTDMA_RD_OPTIMIZATION_CTRL_FB_WAIT_FOR_SPACE;
4128 }
4129
4130 val64 &= ~(VXGE_HW_RTDMA_RD_OPTIMIZATION_CTRL_FB_ADDR_BDRY(7));
4131 val64 |=
4132 VXGE_HW_RTDMA_RD_OPTIMIZATION_CTRL_FB_ADDR_BDRY(
4133 VXGE_HW_MAX_PAYLOAD_SIZE_512);
4134
4135 val64 |= VXGE_HW_RTDMA_RD_OPTIMIZATION_CTRL_FB_ADDR_BDRY_EN;
4136 writeq(val64, &vp_reg->rtdma_rd_optimization_ctrl);
4137
4138 exit:
4139 return status;
4140 }
4141
4142 /*
4143 * __vxge_hw_vp_initialize - Initialize Virtual Path structure
4144 * This routine is the initial phase of init which resets the vpath and
4145 * initializes the software support structures.
4146 */
4147 enum vxge_hw_status
4148 __vxge_hw_vp_initialize(struct __vxge_hw_device *hldev, u32 vp_id,
4149 struct vxge_hw_vp_config *config)
4150 {
4151 struct __vxge_hw_virtualpath *vpath;
4152 enum vxge_hw_status status = VXGE_HW_OK;
4153
4154 if (!(hldev->vpath_assignments & vxge_mBIT(vp_id))) {
4155 status = VXGE_HW_ERR_VPATH_NOT_AVAILABLE;
4156 goto exit;
4157 }
4158
4159 vpath = &hldev->virtual_paths[vp_id];
4160
4161 vpath->vp_id = vp_id;
4162 vpath->vp_open = VXGE_HW_VP_OPEN;
4163 vpath->hldev = hldev;
4164 vpath->vp_config = config;
4165 vpath->vp_reg = hldev->vpath_reg[vp_id];
4166 vpath->vpmgmt_reg = hldev->vpmgmt_reg[vp_id];
4167
4168 __vxge_hw_vpath_reset(hldev, vp_id);
4169
4170 status = __vxge_hw_vpath_reset_check(vpath);
4171
4172 if (status != VXGE_HW_OK) {
4173 memset(vpath, 0, sizeof(struct __vxge_hw_virtualpath));
4174 goto exit;
4175 }
4176
4177 status = __vxge_hw_vpath_mgmt_read(hldev, vpath);
4178
4179 if (status != VXGE_HW_OK) {
4180 memset(vpath, 0, sizeof(struct __vxge_hw_virtualpath));
4181 goto exit;
4182 }
4183
4184 INIT_LIST_HEAD(&vpath->vpath_handles);
4185
4186 vpath->sw_stats = &hldev->stats.sw_dev_info_stats.vpath_info[vp_id];
4187
4188 VXGE_HW_DEVICE_TIM_INT_MASK_SET(hldev->tim_int_mask0,
4189 hldev->tim_int_mask1, vp_id);
4190
4191 status = __vxge_hw_vpath_initialize(hldev, vp_id);
4192
4193 if (status != VXGE_HW_OK)
4194 __vxge_hw_vp_terminate(hldev, vp_id);
4195 exit:
4196 return status;
4197 }
4198
4199 /*
4200 * __vxge_hw_vp_terminate - Terminate Virtual Path structure
4201 * This routine closes all channels it opened and freeup memory
4202 */
4203 void
4204 __vxge_hw_vp_terminate(struct __vxge_hw_device *hldev, u32 vp_id)
4205 {
4206 struct __vxge_hw_virtualpath *vpath;
4207
4208 vpath = &hldev->virtual_paths[vp_id];
4209
4210 if (vpath->vp_open == VXGE_HW_VP_NOT_OPEN)
4211 goto exit;
4212
4213 VXGE_HW_DEVICE_TIM_INT_MASK_RESET(vpath->hldev->tim_int_mask0,
4214 vpath->hldev->tim_int_mask1, vpath->vp_id);
4215 hldev->stats.hw_dev_info_stats.vpath_info[vpath->vp_id] = NULL;
4216
4217 memset(vpath, 0, sizeof(struct __vxge_hw_virtualpath));
4218 exit:
4219 return;
4220 }
4221
4222 /*
4223 * vxge_hw_vpath_mtu_set - Set MTU.
4224 * Set new MTU value. Example, to use jumbo frames:
4225 * vxge_hw_vpath_mtu_set(my_device, 9600);
4226 */
4227 enum vxge_hw_status
4228 vxge_hw_vpath_mtu_set(struct __vxge_hw_vpath_handle *vp, u32 new_mtu)
4229 {
4230 u64 val64;
4231 enum vxge_hw_status status = VXGE_HW_OK;
4232 struct __vxge_hw_virtualpath *vpath;
4233
4234 if (vp == NULL) {
4235 status = VXGE_HW_ERR_INVALID_HANDLE;
4236 goto exit;
4237 }
4238 vpath = vp->vpath;
4239
4240 new_mtu += VXGE_HW_MAC_HEADER_MAX_SIZE;
4241
4242 if ((new_mtu < VXGE_HW_MIN_MTU) || (new_mtu > vpath->max_mtu))
4243 status = VXGE_HW_ERR_INVALID_MTU_SIZE;
4244
4245 val64 = readq(&vpath->vp_reg->rxmac_vcfg0);
4246
4247 val64 &= ~VXGE_HW_RXMAC_VCFG0_RTS_MAX_FRM_LEN(0x3fff);
4248 val64 |= VXGE_HW_RXMAC_VCFG0_RTS_MAX_FRM_LEN(new_mtu);
4249
4250 writeq(val64, &vpath->vp_reg->rxmac_vcfg0);
4251
4252 vpath->vp_config->mtu = new_mtu - VXGE_HW_MAC_HEADER_MAX_SIZE;
4253
4254 exit:
4255 return status;
4256 }
4257
4258 /*
4259 * vxge_hw_vpath_open - Open a virtual path on a given adapter
4260 * This function is used to open access to virtual path of an
4261 * adapter for offload, GRO operations. This function returns
4262 * synchronously.
4263 */
4264 enum vxge_hw_status
4265 vxge_hw_vpath_open(struct __vxge_hw_device *hldev,
4266 struct vxge_hw_vpath_attr *attr,
4267 struct __vxge_hw_vpath_handle **vpath_handle)
4268 {
4269 struct __vxge_hw_virtualpath *vpath;
4270 struct __vxge_hw_vpath_handle *vp;
4271 enum vxge_hw_status status;
4272
4273 vpath = &hldev->virtual_paths[attr->vp_id];
4274
4275 if (vpath->vp_open == VXGE_HW_VP_OPEN) {
4276 status = VXGE_HW_ERR_INVALID_STATE;
4277 goto vpath_open_exit1;
4278 }
4279
4280 status = __vxge_hw_vp_initialize(hldev, attr->vp_id,
4281 &hldev->config.vp_config[attr->vp_id]);
4282
4283 if (status != VXGE_HW_OK)
4284 goto vpath_open_exit1;
4285
4286 vp = (struct __vxge_hw_vpath_handle *)
4287 vmalloc(sizeof(struct __vxge_hw_vpath_handle));
4288 if (vp == NULL) {
4289 status = VXGE_HW_ERR_OUT_OF_MEMORY;
4290 goto vpath_open_exit2;
4291 }
4292
4293 memset(vp, 0, sizeof(struct __vxge_hw_vpath_handle));
4294
4295 vp->vpath = vpath;
4296
4297 if (vpath->vp_config->fifo.enable == VXGE_HW_FIFO_ENABLE) {
4298 status = __vxge_hw_fifo_create(vp, &attr->fifo_attr);
4299 if (status != VXGE_HW_OK)
4300 goto vpath_open_exit6;
4301 }
4302
4303 if (vpath->vp_config->ring.enable == VXGE_HW_RING_ENABLE) {
4304 status = __vxge_hw_ring_create(vp, &attr->ring_attr);
4305 if (status != VXGE_HW_OK)
4306 goto vpath_open_exit7;
4307
4308 __vxge_hw_vpath_prc_configure(hldev, attr->vp_id);
4309 }
4310
4311 vpath->fifoh->tx_intr_num =
4312 (attr->vp_id * VXGE_HW_MAX_INTR_PER_VP) +
4313 VXGE_HW_VPATH_INTR_TX;
4314
4315 vpath->stats_block = __vxge_hw_blockpool_block_allocate(hldev,
4316 VXGE_HW_BLOCK_SIZE);
4317
4318 if (vpath->stats_block == NULL) {
4319 status = VXGE_HW_ERR_OUT_OF_MEMORY;
4320 goto vpath_open_exit8;
4321 }
4322
4323 vpath->hw_stats = (struct vxge_hw_vpath_stats_hw_info *)vpath->
4324 stats_block->memblock;
4325 memset(vpath->hw_stats, 0,
4326 sizeof(struct vxge_hw_vpath_stats_hw_info));
4327
4328 hldev->stats.hw_dev_info_stats.vpath_info[attr->vp_id] =
4329 vpath->hw_stats;
4330
4331 vpath->hw_stats_sav =
4332 &hldev->stats.hw_dev_info_stats.vpath_info_sav[attr->vp_id];
4333 memset(vpath->hw_stats_sav, 0,
4334 sizeof(struct vxge_hw_vpath_stats_hw_info));
4335
4336 writeq(vpath->stats_block->dma_addr, &vpath->vp_reg->stats_cfg);
4337
4338 status = vxge_hw_vpath_stats_enable(vp);
4339 if (status != VXGE_HW_OK)
4340 goto vpath_open_exit8;
4341
4342 list_add(&vp->item, &vpath->vpath_handles);
4343
4344 hldev->vpaths_deployed |= vxge_mBIT(vpath->vp_id);
4345
4346 *vpath_handle = vp;
4347
4348 attr->fifo_attr.userdata = vpath->fifoh;
4349 attr->ring_attr.userdata = vpath->ringh;
4350
4351 return VXGE_HW_OK;
4352
4353 vpath_open_exit8:
4354 if (vpath->ringh != NULL)
4355 __vxge_hw_ring_delete(vp);
4356 vpath_open_exit7:
4357 if (vpath->fifoh != NULL)
4358 __vxge_hw_fifo_delete(vp);
4359 vpath_open_exit6:
4360 vfree(vp);
4361 vpath_open_exit2:
4362 __vxge_hw_vp_terminate(hldev, attr->vp_id);
4363 vpath_open_exit1:
4364
4365 return status;
4366 }
4367
4368 /**
4369 * vxge_hw_vpath_rx_doorbell_post - Close the handle got from previous vpath
4370 * (vpath) open
4371 * @vp: Handle got from previous vpath open
4372 *
4373 * This function is used to close access to virtual path opened
4374 * earlier.
4375 */
4376 void
4377 vxge_hw_vpath_rx_doorbell_init(struct __vxge_hw_vpath_handle *vp)
4378 {
4379 struct __vxge_hw_virtualpath *vpath = NULL;
4380 u64 new_count, val64, val164;
4381 struct __vxge_hw_ring *ring;
4382
4383 vpath = vp->vpath;
4384 ring = vpath->ringh;
4385
4386 new_count = readq(&vpath->vp_reg->rxdmem_size);
4387 new_count &= 0x1fff;
4388 val164 = (VXGE_HW_RXDMEM_SIZE_PRC_RXDMEM_SIZE(new_count));
4389
4390 writeq(VXGE_HW_PRC_RXD_DOORBELL_NEW_QW_CNT(val164),
4391 &vpath->vp_reg->prc_rxd_doorbell);
4392 readl(&vpath->vp_reg->prc_rxd_doorbell);
4393
4394 val164 /= 2;
4395 val64 = readq(&vpath->vp_reg->prc_cfg6);
4396 val64 = VXGE_HW_PRC_CFG6_RXD_SPAT(val64);
4397 val64 &= 0x1ff;
4398
4399 /*
4400 * Each RxD is of 4 qwords
4401 */
4402 new_count -= (val64 + 1);
4403 val64 = min(val164, new_count) / 4;
4404
4405 ring->rxds_limit = min(ring->rxds_limit, val64);
4406 if (ring->rxds_limit < 4)
4407 ring->rxds_limit = 4;
4408 }
4409
4410 /*
4411 * vxge_hw_vpath_close - Close the handle got from previous vpath (vpath) open
4412 * This function is used to close access to virtual path opened
4413 * earlier.
4414 */
4415 enum vxge_hw_status vxge_hw_vpath_close(struct __vxge_hw_vpath_handle *vp)
4416 {
4417 struct __vxge_hw_virtualpath *vpath = NULL;
4418 struct __vxge_hw_device *devh = NULL;
4419 u32 vp_id = vp->vpath->vp_id;
4420 u32 is_empty = TRUE;
4421 enum vxge_hw_status status = VXGE_HW_OK;
4422
4423 vpath = vp->vpath;
4424 devh = vpath->hldev;
4425
4426 if (vpath->vp_open == VXGE_HW_VP_NOT_OPEN) {
4427 status = VXGE_HW_ERR_VPATH_NOT_OPEN;
4428 goto vpath_close_exit;
4429 }
4430
4431 list_del(&vp->item);
4432
4433 if (!list_empty(&vpath->vpath_handles)) {
4434 list_add(&vp->item, &vpath->vpath_handles);
4435 is_empty = FALSE;
4436 }
4437
4438 if (!is_empty) {
4439 status = VXGE_HW_FAIL;
4440 goto vpath_close_exit;
4441 }
4442
4443 devh->vpaths_deployed &= ~vxge_mBIT(vp_id);
4444
4445 if (vpath->ringh != NULL)
4446 __vxge_hw_ring_delete(vp);
4447
4448 if (vpath->fifoh != NULL)
4449 __vxge_hw_fifo_delete(vp);
4450
4451 if (vpath->stats_block != NULL)
4452 __vxge_hw_blockpool_block_free(devh, vpath->stats_block);
4453
4454 vfree(vp);
4455
4456 __vxge_hw_vp_terminate(devh, vp_id);
4457
4458 vpath->vp_open = VXGE_HW_VP_NOT_OPEN;
4459
4460 vpath_close_exit:
4461 return status;
4462 }
4463
4464 /*
4465 * vxge_hw_vpath_reset - Resets vpath
4466 * This function is used to request a reset of vpath
4467 */
4468 enum vxge_hw_status vxge_hw_vpath_reset(struct __vxge_hw_vpath_handle *vp)
4469 {
4470 enum vxge_hw_status status;
4471 u32 vp_id;
4472 struct __vxge_hw_virtualpath *vpath = vp->vpath;
4473
4474 vp_id = vpath->vp_id;
4475
4476 if (vpath->vp_open == VXGE_HW_VP_NOT_OPEN) {
4477 status = VXGE_HW_ERR_VPATH_NOT_OPEN;
4478 goto exit;
4479 }
4480
4481 status = __vxge_hw_vpath_reset(vpath->hldev, vp_id);
4482 if (status == VXGE_HW_OK)
4483 vpath->sw_stats->soft_reset_cnt++;
4484 exit:
4485 return status;
4486 }
4487
4488 /*
4489 * vxge_hw_vpath_recover_from_reset - Poll for reset complete and re-initialize.
4490 * This function poll's for the vpath reset completion and re initializes
4491 * the vpath.
4492 */
4493 enum vxge_hw_status
4494 vxge_hw_vpath_recover_from_reset(struct __vxge_hw_vpath_handle *vp)
4495 {
4496 struct __vxge_hw_virtualpath *vpath = NULL;
4497 enum vxge_hw_status status;
4498 struct __vxge_hw_device *hldev;
4499 u32 vp_id;
4500
4501 vp_id = vp->vpath->vp_id;
4502 vpath = vp->vpath;
4503 hldev = vpath->hldev;
4504
4505 if (vpath->vp_open == VXGE_HW_VP_NOT_OPEN) {
4506 status = VXGE_HW_ERR_VPATH_NOT_OPEN;
4507 goto exit;
4508 }
4509
4510 status = __vxge_hw_vpath_reset_check(vpath);
4511 if (status != VXGE_HW_OK)
4512 goto exit;
4513
4514 status = __vxge_hw_vpath_sw_reset(hldev, vp_id);
4515 if (status != VXGE_HW_OK)
4516 goto exit;
4517
4518 status = __vxge_hw_vpath_initialize(hldev, vp_id);
4519 if (status != VXGE_HW_OK)
4520 goto exit;
4521
4522 if (vpath->ringh != NULL)
4523 __vxge_hw_vpath_prc_configure(hldev, vp_id);
4524
4525 memset(vpath->hw_stats, 0,
4526 sizeof(struct vxge_hw_vpath_stats_hw_info));
4527
4528 memset(vpath->hw_stats_sav, 0,
4529 sizeof(struct vxge_hw_vpath_stats_hw_info));
4530
4531 writeq(vpath->stats_block->dma_addr,
4532 &vpath->vp_reg->stats_cfg);
4533
4534 status = vxge_hw_vpath_stats_enable(vp);
4535
4536 exit:
4537 return status;
4538 }
4539
4540 /*
4541 * vxge_hw_vpath_enable - Enable vpath.
4542 * This routine clears the vpath reset thereby enabling a vpath
4543 * to start forwarding frames and generating interrupts.
4544 */
4545 void
4546 vxge_hw_vpath_enable(struct __vxge_hw_vpath_handle *vp)
4547 {
4548 struct __vxge_hw_device *hldev;
4549 u64 val64;
4550
4551 hldev = vp->vpath->hldev;
4552
4553 val64 = VXGE_HW_CMN_RSTHDLR_CFG1_CLR_VPATH_RESET(
4554 1 << (16 - vp->vpath->vp_id));
4555
4556 __vxge_hw_pio_mem_write32_upper((u32)vxge_bVALn(val64, 0, 32),
4557 &hldev->common_reg->cmn_rsthdlr_cfg1);
4558 }
4559
4560 /*
4561 * vxge_hw_vpath_stats_enable - Enable vpath h/wstatistics.
4562 * Enable the DMA vpath statistics. The function is to be called to re-enable
4563 * the adapter to update stats into the host memory
4564 */
4565 enum vxge_hw_status
4566 vxge_hw_vpath_stats_enable(struct __vxge_hw_vpath_handle *vp)
4567 {
4568 enum vxge_hw_status status = VXGE_HW_OK;
4569 struct __vxge_hw_virtualpath *vpath;
4570
4571 vpath = vp->vpath;
4572
4573 if (vpath->vp_open == VXGE_HW_VP_NOT_OPEN) {
4574 status = VXGE_HW_ERR_VPATH_NOT_OPEN;
4575 goto exit;
4576 }
4577
4578 memcpy(vpath->hw_stats_sav, vpath->hw_stats,
4579 sizeof(struct vxge_hw_vpath_stats_hw_info));
4580
4581 status = __vxge_hw_vpath_stats_get(vpath, vpath->hw_stats);
4582 exit:
4583 return status;
4584 }
4585
4586 /*
4587 * __vxge_hw_vpath_stats_access - Get the statistics from the given location
4588 * and offset and perform an operation
4589 */
4590 enum vxge_hw_status
4591 __vxge_hw_vpath_stats_access(struct __vxge_hw_virtualpath *vpath,
4592 u32 operation, u32 offset, u64 *stat)
4593 {
4594 u64 val64;
4595 enum vxge_hw_status status = VXGE_HW_OK;
4596 struct vxge_hw_vpath_reg __iomem *vp_reg;
4597
4598 if (vpath->vp_open == VXGE_HW_VP_NOT_OPEN) {
4599 status = VXGE_HW_ERR_VPATH_NOT_OPEN;
4600 goto vpath_stats_access_exit;
4601 }
4602
4603 vp_reg = vpath->vp_reg;
4604
4605 val64 = VXGE_HW_XMAC_STATS_ACCESS_CMD_OP(operation) |
4606 VXGE_HW_XMAC_STATS_ACCESS_CMD_STROBE |
4607 VXGE_HW_XMAC_STATS_ACCESS_CMD_OFFSET_SEL(offset);
4608
4609 status = __vxge_hw_pio_mem_write64(val64,
4610 &vp_reg->xmac_stats_access_cmd,
4611 VXGE_HW_XMAC_STATS_ACCESS_CMD_STROBE,
4612 vpath->hldev->config.device_poll_millis);
4613
4614 if ((status == VXGE_HW_OK) && (operation == VXGE_HW_STATS_OP_READ))
4615 *stat = readq(&vp_reg->xmac_stats_access_data);
4616 else
4617 *stat = 0;
4618
4619 vpath_stats_access_exit:
4620 return status;
4621 }
4622
4623 /*
4624 * __vxge_hw_vpath_xmac_tx_stats_get - Get the TX Statistics of a vpath
4625 */
4626 enum vxge_hw_status
4627 __vxge_hw_vpath_xmac_tx_stats_get(
4628 struct __vxge_hw_virtualpath *vpath,
4629 struct vxge_hw_xmac_vpath_tx_stats *vpath_tx_stats)
4630 {
4631 u64 *val64;
4632 int i;
4633 u32 offset = VXGE_HW_STATS_VPATH_TX_OFFSET;
4634 enum vxge_hw_status status = VXGE_HW_OK;
4635
4636 val64 = (u64 *) vpath_tx_stats;
4637
4638 if (vpath->vp_open == VXGE_HW_VP_NOT_OPEN) {
4639 status = VXGE_HW_ERR_VPATH_NOT_OPEN;
4640 goto exit;
4641 }
4642
4643 for (i = 0; i < sizeof(struct vxge_hw_xmac_vpath_tx_stats) / 8; i++) {
4644 status = __vxge_hw_vpath_stats_access(vpath,
4645 VXGE_HW_STATS_OP_READ,
4646 offset, val64);
4647 if (status != VXGE_HW_OK)
4648 goto exit;
4649 offset++;
4650 val64++;
4651 }
4652 exit:
4653 return status;
4654 }
4655
4656 /*
4657 * __vxge_hw_vpath_xmac_rx_stats_get - Get the RX Statistics of a vpath
4658 */
4659 enum vxge_hw_status
4660 __vxge_hw_vpath_xmac_rx_stats_get(struct __vxge_hw_virtualpath *vpath,
4661 struct vxge_hw_xmac_vpath_rx_stats *vpath_rx_stats)
4662 {
4663 u64 *val64;
4664 enum vxge_hw_status status = VXGE_HW_OK;
4665 int i;
4666 u32 offset = VXGE_HW_STATS_VPATH_RX_OFFSET;
4667 val64 = (u64 *) vpath_rx_stats;
4668
4669 if (vpath->vp_open == VXGE_HW_VP_NOT_OPEN) {
4670 status = VXGE_HW_ERR_VPATH_NOT_OPEN;
4671 goto exit;
4672 }
4673 for (i = 0; i < sizeof(struct vxge_hw_xmac_vpath_rx_stats) / 8; i++) {
4674 status = __vxge_hw_vpath_stats_access(vpath,
4675 VXGE_HW_STATS_OP_READ,
4676 offset >> 3, val64);
4677 if (status != VXGE_HW_OK)
4678 goto exit;
4679
4680 offset += 8;
4681 val64++;
4682 }
4683 exit:
4684 return status;
4685 }
4686
4687 /*
4688 * __vxge_hw_vpath_stats_get - Get the vpath hw statistics.
4689 */
4690 enum vxge_hw_status __vxge_hw_vpath_stats_get(
4691 struct __vxge_hw_virtualpath *vpath,
4692 struct vxge_hw_vpath_stats_hw_info *hw_stats)
4693 {
4694 u64 val64;
4695 enum vxge_hw_status status = VXGE_HW_OK;
4696 struct vxge_hw_vpath_reg __iomem *vp_reg;
4697
4698 if (vpath->vp_open == VXGE_HW_VP_NOT_OPEN) {
4699 status = VXGE_HW_ERR_VPATH_NOT_OPEN;
4700 goto exit;
4701 }
4702 vp_reg = vpath->vp_reg;
4703
4704 val64 = readq(&vp_reg->vpath_debug_stats0);
4705 hw_stats->ini_num_mwr_sent =
4706 (u32)VXGE_HW_VPATH_DEBUG_STATS0_GET_INI_NUM_MWR_SENT(val64);
4707
4708 val64 = readq(&vp_reg->vpath_debug_stats1);
4709 hw_stats->ini_num_mrd_sent =
4710 (u32)VXGE_HW_VPATH_DEBUG_STATS1_GET_INI_NUM_MRD_SENT(val64);
4711
4712 val64 = readq(&vp_reg->vpath_debug_stats2);
4713 hw_stats->ini_num_cpl_rcvd =
4714 (u32)VXGE_HW_VPATH_DEBUG_STATS2_GET_INI_NUM_CPL_RCVD(val64);
4715
4716 val64 = readq(&vp_reg->vpath_debug_stats3);
4717 hw_stats->ini_num_mwr_byte_sent =
4718 VXGE_HW_VPATH_DEBUG_STATS3_GET_INI_NUM_MWR_BYTE_SENT(val64);
4719
4720 val64 = readq(&vp_reg->vpath_debug_stats4);
4721 hw_stats->ini_num_cpl_byte_rcvd =
4722 VXGE_HW_VPATH_DEBUG_STATS4_GET_INI_NUM_CPL_BYTE_RCVD(val64);
4723
4724 val64 = readq(&vp_reg->vpath_debug_stats5);
4725 hw_stats->wrcrdtarb_xoff =
4726 (u32)VXGE_HW_VPATH_DEBUG_STATS5_GET_WRCRDTARB_XOFF(val64);
4727
4728 val64 = readq(&vp_reg->vpath_debug_stats6);
4729 hw_stats->rdcrdtarb_xoff =
4730 (u32)VXGE_HW_VPATH_DEBUG_STATS6_GET_RDCRDTARB_XOFF(val64);
4731
4732 val64 = readq(&vp_reg->vpath_genstats_count01);
4733 hw_stats->vpath_genstats_count0 =
4734 (u32)VXGE_HW_VPATH_GENSTATS_COUNT01_GET_PPIF_VPATH_GENSTATS_COUNT0(
4735 val64);
4736
4737 val64 = readq(&vp_reg->vpath_genstats_count01);
4738 hw_stats->vpath_genstats_count1 =
4739 (u32)VXGE_HW_VPATH_GENSTATS_COUNT01_GET_PPIF_VPATH_GENSTATS_COUNT1(
4740 val64);
4741
4742 val64 = readq(&vp_reg->vpath_genstats_count23);
4743 hw_stats->vpath_genstats_count2 =
4744 (u32)VXGE_HW_VPATH_GENSTATS_COUNT23_GET_PPIF_VPATH_GENSTATS_COUNT2(
4745 val64);
4746
4747 val64 = readq(&vp_reg->vpath_genstats_count01);
4748 hw_stats->vpath_genstats_count3 =
4749 (u32)VXGE_HW_VPATH_GENSTATS_COUNT23_GET_PPIF_VPATH_GENSTATS_COUNT3(
4750 val64);
4751
4752 val64 = readq(&vp_reg->vpath_genstats_count4);
4753 hw_stats->vpath_genstats_count4 =
4754 (u32)VXGE_HW_VPATH_GENSTATS_COUNT4_GET_PPIF_VPATH_GENSTATS_COUNT4(
4755 val64);
4756
4757 val64 = readq(&vp_reg->vpath_genstats_count5);
4758 hw_stats->vpath_genstats_count5 =
4759 (u32)VXGE_HW_VPATH_GENSTATS_COUNT5_GET_PPIF_VPATH_GENSTATS_COUNT5(
4760 val64);
4761
4762 status = __vxge_hw_vpath_xmac_tx_stats_get(vpath, &hw_stats->tx_stats);
4763 if (status != VXGE_HW_OK)
4764 goto exit;
4765
4766 status = __vxge_hw_vpath_xmac_rx_stats_get(vpath, &hw_stats->rx_stats);
4767 if (status != VXGE_HW_OK)
4768 goto exit;
4769
4770 VXGE_HW_VPATH_STATS_PIO_READ(
4771 VXGE_HW_STATS_VPATH_PROG_EVENT_VNUM0_OFFSET);
4772
4773 hw_stats->prog_event_vnum0 =
4774 (u32)VXGE_HW_STATS_GET_VPATH_PROG_EVENT_VNUM0(val64);
4775
4776 hw_stats->prog_event_vnum1 =
4777 (u32)VXGE_HW_STATS_GET_VPATH_PROG_EVENT_VNUM1(val64);
4778
4779 VXGE_HW_VPATH_STATS_PIO_READ(
4780 VXGE_HW_STATS_VPATH_PROG_EVENT_VNUM2_OFFSET);
4781
4782 hw_stats->prog_event_vnum2 =
4783 (u32)VXGE_HW_STATS_GET_VPATH_PROG_EVENT_VNUM2(val64);
4784
4785 hw_stats->prog_event_vnum3 =
4786 (u32)VXGE_HW_STATS_GET_VPATH_PROG_EVENT_VNUM3(val64);
4787
4788 val64 = readq(&vp_reg->rx_multi_cast_stats);
4789 hw_stats->rx_multi_cast_frame_discard =
4790 (u16)VXGE_HW_RX_MULTI_CAST_STATS_GET_FRAME_DISCARD(val64);
4791
4792 val64 = readq(&vp_reg->rx_frm_transferred);
4793 hw_stats->rx_frm_transferred =
4794 (u32)VXGE_HW_RX_FRM_TRANSFERRED_GET_RX_FRM_TRANSFERRED(val64);
4795
4796 val64 = readq(&vp_reg->rxd_returned);
4797 hw_stats->rxd_returned =
4798 (u16)VXGE_HW_RXD_RETURNED_GET_RXD_RETURNED(val64);
4799
4800 val64 = readq(&vp_reg->dbg_stats_rx_mpa);
4801 hw_stats->rx_mpa_len_fail_frms =
4802 (u16)VXGE_HW_DBG_STATS_GET_RX_MPA_LEN_FAIL_FRMS(val64);
4803 hw_stats->rx_mpa_mrk_fail_frms =
4804 (u16)VXGE_HW_DBG_STATS_GET_RX_MPA_MRK_FAIL_FRMS(val64);
4805 hw_stats->rx_mpa_crc_fail_frms =
4806 (u16)VXGE_HW_DBG_STATS_GET_RX_MPA_CRC_FAIL_FRMS(val64);
4807
4808 val64 = readq(&vp_reg->dbg_stats_rx_fau);
4809 hw_stats->rx_permitted_frms =
4810 (u16)VXGE_HW_DBG_STATS_GET_RX_FAU_RX_PERMITTED_FRMS(val64);
4811 hw_stats->rx_vp_reset_discarded_frms =
4812 (u16)VXGE_HW_DBG_STATS_GET_RX_FAU_RX_VP_RESET_DISCARDED_FRMS(val64);
4813 hw_stats->rx_wol_frms =
4814 (u16)VXGE_HW_DBG_STATS_GET_RX_FAU_RX_WOL_FRMS(val64);
4815
4816 val64 = readq(&vp_reg->tx_vp_reset_discarded_frms);
4817 hw_stats->tx_vp_reset_discarded_frms =
4818 (u16)VXGE_HW_TX_VP_RESET_DISCARDED_FRMS_GET_TX_VP_RESET_DISCARDED_FRMS(
4819 val64);
4820 exit:
4821 return status;
4822 }
4823
4824 /*
4825 * __vxge_hw_blockpool_create - Create block pool
4826 */
4827
4828 enum vxge_hw_status
4829 __vxge_hw_blockpool_create(struct __vxge_hw_device *hldev,
4830 struct __vxge_hw_blockpool *blockpool,
4831 u32 pool_size,
4832 u32 pool_max)
4833 {
4834 u32 i;
4835 struct __vxge_hw_blockpool_entry *entry = NULL;
4836 void *memblock;
4837 dma_addr_t dma_addr;
4838 struct pci_dev *dma_handle;
4839 struct pci_dev *acc_handle;
4840 enum vxge_hw_status status = VXGE_HW_OK;
4841
4842 if (blockpool == NULL) {
4843 status = VXGE_HW_FAIL;
4844 goto blockpool_create_exit;
4845 }
4846
4847 blockpool->hldev = hldev;
4848 blockpool->block_size = VXGE_HW_BLOCK_SIZE;
4849 blockpool->pool_size = 0;
4850 blockpool->pool_max = pool_max;
4851 blockpool->req_out = 0;
4852
4853 INIT_LIST_HEAD(&blockpool->free_block_list);
4854 INIT_LIST_HEAD(&blockpool->free_entry_list);
4855
4856 for (i = 0; i < pool_size + pool_max; i++) {
4857 entry = kzalloc(sizeof(struct __vxge_hw_blockpool_entry),
4858 GFP_KERNEL);
4859 if (entry == NULL) {
4860 __vxge_hw_blockpool_destroy(blockpool);
4861 status = VXGE_HW_ERR_OUT_OF_MEMORY;
4862 goto blockpool_create_exit;
4863 }
4864 list_add(&entry->item, &blockpool->free_entry_list);
4865 }
4866
4867 for (i = 0; i < pool_size; i++) {
4868
4869 memblock = vxge_os_dma_malloc(
4870 hldev->pdev,
4871 VXGE_HW_BLOCK_SIZE,
4872 &dma_handle,
4873 &acc_handle);
4874
4875 if (memblock == NULL) {
4876 __vxge_hw_blockpool_destroy(blockpool);
4877 status = VXGE_HW_ERR_OUT_OF_MEMORY;
4878 goto blockpool_create_exit;
4879 }
4880
4881 dma_addr = pci_map_single(hldev->pdev, memblock,
4882 VXGE_HW_BLOCK_SIZE, PCI_DMA_BIDIRECTIONAL);
4883
4884 if (unlikely(pci_dma_mapping_error(hldev->pdev,
4885 dma_addr))) {
4886
4887 vxge_os_dma_free(hldev->pdev, memblock, &acc_handle);
4888 __vxge_hw_blockpool_destroy(blockpool);
4889 status = VXGE_HW_ERR_OUT_OF_MEMORY;
4890 goto blockpool_create_exit;
4891 }
4892
4893 if (!list_empty(&blockpool->free_entry_list))
4894 entry = (struct __vxge_hw_blockpool_entry *)
4895 list_first_entry(&blockpool->free_entry_list,
4896 struct __vxge_hw_blockpool_entry,
4897 item);
4898
4899 if (entry == NULL)
4900 entry =
4901 kzalloc(sizeof(struct __vxge_hw_blockpool_entry),
4902 GFP_KERNEL);
4903 if (entry != NULL) {
4904 list_del(&entry->item);
4905 entry->length = VXGE_HW_BLOCK_SIZE;
4906 entry->memblock = memblock;
4907 entry->dma_addr = dma_addr;
4908 entry->acc_handle = acc_handle;
4909 entry->dma_handle = dma_handle;
4910 list_add(&entry->item,
4911 &blockpool->free_block_list);
4912 blockpool->pool_size++;
4913 } else {
4914 __vxge_hw_blockpool_destroy(blockpool);
4915 status = VXGE_HW_ERR_OUT_OF_MEMORY;
4916 goto blockpool_create_exit;
4917 }
4918 }
4919
4920 blockpool_create_exit:
4921 return status;
4922 }
4923
4924 /*
4925 * __vxge_hw_blockpool_destroy - Deallocates the block pool
4926 */
4927
4928 void __vxge_hw_blockpool_destroy(struct __vxge_hw_blockpool *blockpool)
4929 {
4930
4931 struct __vxge_hw_device *hldev;
4932 struct list_head *p, *n;
4933 u16 ret;
4934
4935 if (blockpool == NULL) {
4936 ret = 1;
4937 goto exit;
4938 }
4939
4940 hldev = blockpool->hldev;
4941
4942 list_for_each_safe(p, n, &blockpool->free_block_list) {
4943
4944 pci_unmap_single(hldev->pdev,
4945 ((struct __vxge_hw_blockpool_entry *)p)->dma_addr,
4946 ((struct __vxge_hw_blockpool_entry *)p)->length,
4947 PCI_DMA_BIDIRECTIONAL);
4948
4949 vxge_os_dma_free(hldev->pdev,
4950 ((struct __vxge_hw_blockpool_entry *)p)->memblock,
4951 &((struct __vxge_hw_blockpool_entry *) p)->acc_handle);
4952
4953 list_del(
4954 &((struct __vxge_hw_blockpool_entry *)p)->item);
4955 kfree(p);
4956 blockpool->pool_size--;
4957 }
4958
4959 list_for_each_safe(p, n, &blockpool->free_entry_list) {
4960 list_del(
4961 &((struct __vxge_hw_blockpool_entry *)p)->item);
4962 kfree((void *)p);
4963 }
4964 ret = 0;
4965 exit:
4966 return;
4967 }
4968
4969 /*
4970 * __vxge_hw_blockpool_blocks_add - Request additional blocks
4971 */
4972 static
4973 void __vxge_hw_blockpool_blocks_add(struct __vxge_hw_blockpool *blockpool)
4974 {
4975 u32 nreq = 0, i;
4976
4977 if ((blockpool->pool_size + blockpool->req_out) <
4978 VXGE_HW_MIN_DMA_BLOCK_POOL_SIZE) {
4979 nreq = VXGE_HW_INCR_DMA_BLOCK_POOL_SIZE;
4980 blockpool->req_out += nreq;
4981 }
4982
4983 for (i = 0; i < nreq; i++)
4984 vxge_os_dma_malloc_async(
4985 ((struct __vxge_hw_device *)blockpool->hldev)->pdev,
4986 blockpool->hldev, VXGE_HW_BLOCK_SIZE);
4987 }
4988
4989 /*
4990 * __vxge_hw_blockpool_blocks_remove - Free additional blocks
4991 */
4992 static
4993 void __vxge_hw_blockpool_blocks_remove(struct __vxge_hw_blockpool *blockpool)
4994 {
4995 struct list_head *p, *n;
4996
4997 list_for_each_safe(p, n, &blockpool->free_block_list) {
4998
4999 if (blockpool->pool_size < blockpool->pool_max)
5000 break;
5001
5002 pci_unmap_single(
5003 ((struct __vxge_hw_device *)blockpool->hldev)->pdev,
5004 ((struct __vxge_hw_blockpool_entry *)p)->dma_addr,
5005 ((struct __vxge_hw_blockpool_entry *)p)->length,
5006 PCI_DMA_BIDIRECTIONAL);
5007
5008 vxge_os_dma_free(
5009 ((struct __vxge_hw_device *)blockpool->hldev)->pdev,
5010 ((struct __vxge_hw_blockpool_entry *)p)->memblock,
5011 &((struct __vxge_hw_blockpool_entry *)p)->acc_handle);
5012
5013 list_del(&((struct __vxge_hw_blockpool_entry *)p)->item);
5014
5015 list_add(p, &blockpool->free_entry_list);
5016
5017 blockpool->pool_size--;
5018
5019 }
5020 }
5021
5022 /*
5023 * vxge_hw_blockpool_block_add - callback for vxge_os_dma_malloc_async
5024 * Adds a block to block pool
5025 */
5026 void vxge_hw_blockpool_block_add(
5027 struct __vxge_hw_device *devh,
5028 void *block_addr,
5029 u32 length,
5030 struct pci_dev *dma_h,
5031 struct pci_dev *acc_handle)
5032 {
5033 struct __vxge_hw_blockpool *blockpool;
5034 struct __vxge_hw_blockpool_entry *entry = NULL;
5035 dma_addr_t dma_addr;
5036 enum vxge_hw_status status = VXGE_HW_OK;
5037 u32 req_out;
5038
5039 blockpool = &devh->block_pool;
5040
5041 if (block_addr == NULL) {
5042 blockpool->req_out--;
5043 status = VXGE_HW_FAIL;
5044 goto exit;
5045 }
5046
5047 dma_addr = pci_map_single(devh->pdev, block_addr, length,
5048 PCI_DMA_BIDIRECTIONAL);
5049
5050 if (unlikely(pci_dma_mapping_error(devh->pdev, dma_addr))) {
5051
5052 vxge_os_dma_free(devh->pdev, block_addr, &acc_handle);
5053 blockpool->req_out--;
5054 status = VXGE_HW_FAIL;
5055 goto exit;
5056 }
5057
5058
5059 if (!list_empty(&blockpool->free_entry_list))
5060 entry = (struct __vxge_hw_blockpool_entry *)
5061 list_first_entry(&blockpool->free_entry_list,
5062 struct __vxge_hw_blockpool_entry,
5063 item);
5064
5065 if (entry == NULL)
5066 entry = (struct __vxge_hw_blockpool_entry *)
5067 vmalloc(sizeof(struct __vxge_hw_blockpool_entry));
5068 else
5069 list_del(&entry->item);
5070
5071 if (entry != NULL) {
5072 entry->length = length;
5073 entry->memblock = block_addr;
5074 entry->dma_addr = dma_addr;
5075 entry->acc_handle = acc_handle;
5076 entry->dma_handle = dma_h;
5077 list_add(&entry->item, &blockpool->free_block_list);
5078 blockpool->pool_size++;
5079 status = VXGE_HW_OK;
5080 } else
5081 status = VXGE_HW_ERR_OUT_OF_MEMORY;
5082
5083 blockpool->req_out--;
5084
5085 req_out = blockpool->req_out;
5086 exit:
5087 return;
5088 }
5089
5090 /*
5091 * __vxge_hw_blockpool_malloc - Allocate a memory block from pool
5092 * Allocates a block of memory of given size, either from block pool
5093 * or by calling vxge_os_dma_malloc()
5094 */
5095 void *
5096 __vxge_hw_blockpool_malloc(struct __vxge_hw_device *devh, u32 size,
5097 struct vxge_hw_mempool_dma *dma_object)
5098 {
5099 struct __vxge_hw_blockpool_entry *entry = NULL;
5100 struct __vxge_hw_blockpool *blockpool;
5101 void *memblock = NULL;
5102 enum vxge_hw_status status = VXGE_HW_OK;
5103
5104 blockpool = &devh->block_pool;
5105
5106 if (size != blockpool->block_size) {
5107
5108 memblock = vxge_os_dma_malloc(devh->pdev, size,
5109 &dma_object->handle,
5110 &dma_object->acc_handle);
5111
5112 if (memblock == NULL) {
5113 status = VXGE_HW_ERR_OUT_OF_MEMORY;
5114 goto exit;
5115 }
5116
5117 dma_object->addr = pci_map_single(devh->pdev, memblock, size,
5118 PCI_DMA_BIDIRECTIONAL);
5119
5120 if (unlikely(pci_dma_mapping_error(devh->pdev,
5121 dma_object->addr))) {
5122 vxge_os_dma_free(devh->pdev, memblock,
5123 &dma_object->acc_handle);
5124 status = VXGE_HW_ERR_OUT_OF_MEMORY;
5125 goto exit;
5126 }
5127
5128 } else {
5129
5130 if (!list_empty(&blockpool->free_block_list))
5131 entry = (struct __vxge_hw_blockpool_entry *)
5132 list_first_entry(&blockpool->free_block_list,
5133 struct __vxge_hw_blockpool_entry,
5134 item);
5135
5136 if (entry != NULL) {
5137 list_del(&entry->item);
5138 dma_object->addr = entry->dma_addr;
5139 dma_object->handle = entry->dma_handle;
5140 dma_object->acc_handle = entry->acc_handle;
5141 memblock = entry->memblock;
5142
5143 list_add(&entry->item,
5144 &blockpool->free_entry_list);
5145 blockpool->pool_size--;
5146 }
5147
5148 if (memblock != NULL)
5149 __vxge_hw_blockpool_blocks_add(blockpool);
5150 }
5151 exit:
5152 return memblock;
5153 }
5154
5155 /*
5156 * __vxge_hw_blockpool_free - Frees the memory allcoated with
5157 __vxge_hw_blockpool_malloc
5158 */
5159 void
5160 __vxge_hw_blockpool_free(struct __vxge_hw_device *devh,
5161 void *memblock, u32 size,
5162 struct vxge_hw_mempool_dma *dma_object)
5163 {
5164 struct __vxge_hw_blockpool_entry *entry = NULL;
5165 struct __vxge_hw_blockpool *blockpool;
5166 enum vxge_hw_status status = VXGE_HW_OK;
5167
5168 blockpool = &devh->block_pool;
5169
5170 if (size != blockpool->block_size) {
5171 pci_unmap_single(devh->pdev, dma_object->addr, size,
5172 PCI_DMA_BIDIRECTIONAL);
5173 vxge_os_dma_free(devh->pdev, memblock, &dma_object->acc_handle);
5174 } else {
5175
5176 if (!list_empty(&blockpool->free_entry_list))
5177 entry = (struct __vxge_hw_blockpool_entry *)
5178 list_first_entry(&blockpool->free_entry_list,
5179 struct __vxge_hw_blockpool_entry,
5180 item);
5181
5182 if (entry == NULL)
5183 entry = (struct __vxge_hw_blockpool_entry *)
5184 vmalloc(sizeof(
5185 struct __vxge_hw_blockpool_entry));
5186 else
5187 list_del(&entry->item);
5188
5189 if (entry != NULL) {
5190 entry->length = size;
5191 entry->memblock = memblock;
5192 entry->dma_addr = dma_object->addr;
5193 entry->acc_handle = dma_object->acc_handle;
5194 entry->dma_handle = dma_object->handle;
5195 list_add(&entry->item,
5196 &blockpool->free_block_list);
5197 blockpool->pool_size++;
5198 status = VXGE_HW_OK;
5199 } else
5200 status = VXGE_HW_ERR_OUT_OF_MEMORY;
5201
5202 if (status == VXGE_HW_OK)
5203 __vxge_hw_blockpool_blocks_remove(blockpool);
5204 }
5205
5206 return;
5207 }
5208
5209 /*
5210 * __vxge_hw_blockpool_block_allocate - Allocates a block from block pool
5211 * This function allocates a block from block pool or from the system
5212 */
5213 struct __vxge_hw_blockpool_entry *
5214 __vxge_hw_blockpool_block_allocate(struct __vxge_hw_device *devh, u32 size)
5215 {
5216 struct __vxge_hw_blockpool_entry *entry = NULL;
5217 struct __vxge_hw_blockpool *blockpool;
5218
5219 blockpool = &devh->block_pool;
5220
5221 if (size == blockpool->block_size) {
5222
5223 if (!list_empty(&blockpool->free_block_list))
5224 entry = (struct __vxge_hw_blockpool_entry *)
5225 list_first_entry(&blockpool->free_block_list,
5226 struct __vxge_hw_blockpool_entry,
5227 item);
5228
5229 if (entry != NULL) {
5230 list_del(&entry->item);
5231 blockpool->pool_size--;
5232 }
5233 }
5234
5235 if (entry != NULL)
5236 __vxge_hw_blockpool_blocks_add(blockpool);
5237
5238 return entry;
5239 }
5240
5241 /*
5242 * __vxge_hw_blockpool_block_free - Frees a block from block pool
5243 * @devh: Hal device
5244 * @entry: Entry of block to be freed
5245 *
5246 * This function frees a block from block pool
5247 */
5248 void
5249 __vxge_hw_blockpool_block_free(struct __vxge_hw_device *devh,
5250 struct __vxge_hw_blockpool_entry *entry)
5251 {
5252 struct __vxge_hw_blockpool *blockpool;
5253
5254 blockpool = &devh->block_pool;
5255
5256 if (entry->length == blockpool->block_size) {
5257 list_add(&entry->item, &blockpool->free_block_list);
5258 blockpool->pool_size++;
5259 }
5260
5261 __vxge_hw_blockpool_blocks_remove(blockpool);
5262
5263 return;
5264 }
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree