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 Exar Corp's X3100 Series 10GbE PCIe I/O
11 * Virtualized Server Adapter.
12 * Copyright(c) 2002-2010 Exar Corp.
13 ******************************************************************************/
14 #include <linux/vmalloc.h>
15 #include <linux/etherdevice.h>
16 #include <linux/io-64-nonatomic-lo-hi.h>
17 #include <linux/pci.h>
18 #include <linux/slab.h>
19
20 #include "vxge-traffic.h"
21 #include "vxge-config.h"
22 #include "vxge-main.h"
23
24 #define VXGE_HW_VPATH_STATS_PIO_READ(offset) { \
25 status = __vxge_hw_vpath_stats_access(vpath, \
26 VXGE_HW_STATS_OP_READ, \
27 offset, \
28 &val64); \
29 if (status != VXGE_HW_OK) \
30 return status; \
31 }
32
33 static void
vxge_hw_vpath_set_zero_rx_frm_len(struct vxge_hw_vpath_reg __iomem * vp_reg)34 vxge_hw_vpath_set_zero_rx_frm_len(struct vxge_hw_vpath_reg __iomem *vp_reg)
35 {
36 u64 val64;
37
38 val64 = readq(&vp_reg->rxmac_vcfg0);
39 val64 &= ~VXGE_HW_RXMAC_VCFG0_RTS_MAX_FRM_LEN(0x3fff);
40 writeq(val64, &vp_reg->rxmac_vcfg0);
41 val64 = readq(&vp_reg->rxmac_vcfg0);
42 }
43
44 /*
45 * vxge_hw_vpath_wait_receive_idle - Wait for Rx to become idle
46 */
vxge_hw_vpath_wait_receive_idle(struct __vxge_hw_device * hldev,u32 vp_id)47 int vxge_hw_vpath_wait_receive_idle(struct __vxge_hw_device *hldev, u32 vp_id)
48 {
49 struct vxge_hw_vpath_reg __iomem *vp_reg;
50 struct __vxge_hw_virtualpath *vpath;
51 u64 val64, rxd_count, rxd_spat;
52 int count = 0, total_count = 0;
53
54 vpath = &hldev->virtual_paths[vp_id];
55 vp_reg = vpath->vp_reg;
56
57 vxge_hw_vpath_set_zero_rx_frm_len(vp_reg);
58
59 /* Check that the ring controller for this vpath has enough free RxDs
60 * to send frames to the host. This is done by reading the
61 * PRC_RXD_DOORBELL_VPn register and comparing the read value to the
62 * RXD_SPAT value for the vpath.
63 */
64 val64 = readq(&vp_reg->prc_cfg6);
65 rxd_spat = VXGE_HW_PRC_CFG6_GET_RXD_SPAT(val64) + 1;
66 /* Use a factor of 2 when comparing rxd_count against rxd_spat for some
67 * leg room.
68 */
69 rxd_spat *= 2;
70
71 do {
72 mdelay(1);
73
74 rxd_count = readq(&vp_reg->prc_rxd_doorbell);
75
76 /* Check that the ring controller for this vpath does
77 * not have any frame in its pipeline.
78 */
79 val64 = readq(&vp_reg->frm_in_progress_cnt);
80 if ((rxd_count <= rxd_spat) || (val64 > 0))
81 count = 0;
82 else
83 count++;
84 total_count++;
85 } while ((count < VXGE_HW_MIN_SUCCESSIVE_IDLE_COUNT) &&
86 (total_count < VXGE_HW_MAX_POLLING_COUNT));
87
88 if (total_count >= VXGE_HW_MAX_POLLING_COUNT)
89 printk(KERN_ALERT "%s: Still Receiving traffic. Abort wait\n",
90 __func__);
91
92 return total_count;
93 }
94
95 /* vxge_hw_device_wait_receive_idle - This function waits until all frames
96 * stored in the frame buffer for each vpath assigned to the given
97 * function (hldev) have been sent to the host.
98 */
vxge_hw_device_wait_receive_idle(struct __vxge_hw_device * hldev)99 void vxge_hw_device_wait_receive_idle(struct __vxge_hw_device *hldev)
100 {
101 int i, total_count = 0;
102
103 for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) {
104 if (!(hldev->vpaths_deployed & vxge_mBIT(i)))
105 continue;
106
107 total_count += vxge_hw_vpath_wait_receive_idle(hldev, i);
108 if (total_count >= VXGE_HW_MAX_POLLING_COUNT)
109 break;
110 }
111 }
112
113 /*
114 * __vxge_hw_device_register_poll
115 * Will poll certain register for specified amount of time.
116 * Will poll until masked bit is not cleared.
117 */
118 static enum vxge_hw_status
__vxge_hw_device_register_poll(void __iomem * reg,u64 mask,u32 max_millis)119 __vxge_hw_device_register_poll(void __iomem *reg, u64 mask, u32 max_millis)
120 {
121 u64 val64;
122 u32 i = 0;
123
124 udelay(10);
125
126 do {
127 val64 = readq(reg);
128 if (!(val64 & mask))
129 return VXGE_HW_OK;
130 udelay(100);
131 } while (++i <= 9);
132
133 i = 0;
134 do {
135 val64 = readq(reg);
136 if (!(val64 & mask))
137 return VXGE_HW_OK;
138 mdelay(1);
139 } while (++i <= max_millis);
140
141 return VXGE_HW_FAIL;
142 }
143
144 static inline enum vxge_hw_status
__vxge_hw_pio_mem_write64(u64 val64,void __iomem * addr,u64 mask,u32 max_millis)145 __vxge_hw_pio_mem_write64(u64 val64, void __iomem *addr,
146 u64 mask, u32 max_millis)
147 {
148 __vxge_hw_pio_mem_write32_lower((u32)vxge_bVALn(val64, 32, 32), addr);
149 wmb();
150 __vxge_hw_pio_mem_write32_upper((u32)vxge_bVALn(val64, 0, 32), addr);
151 wmb();
152
153 return __vxge_hw_device_register_poll(addr, mask, max_millis);
154 }
155
156 static enum vxge_hw_status
vxge_hw_vpath_fw_api(struct __vxge_hw_virtualpath * vpath,u32 action,u32 fw_memo,u32 offset,u64 * data0,u64 * data1,u64 * steer_ctrl)157 vxge_hw_vpath_fw_api(struct __vxge_hw_virtualpath *vpath, u32 action,
158 u32 fw_memo, u32 offset, u64 *data0, u64 *data1,
159 u64 *steer_ctrl)
160 {
161 struct vxge_hw_vpath_reg __iomem *vp_reg = vpath->vp_reg;
162 enum vxge_hw_status status;
163 u64 val64;
164 u32 retry = 0, max_retry = 3;
165
166 spin_lock(&vpath->lock);
167 if (!vpath->vp_open) {
168 spin_unlock(&vpath->lock);
169 max_retry = 100;
170 }
171
172 writeq(*data0, &vp_reg->rts_access_steer_data0);
173 writeq(*data1, &vp_reg->rts_access_steer_data1);
174 wmb();
175
176 val64 = VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION(action) |
177 VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL(fw_memo) |
178 VXGE_HW_RTS_ACCESS_STEER_CTRL_OFFSET(offset) |
179 VXGE_HW_RTS_ACCESS_STEER_CTRL_STROBE |
180 *steer_ctrl;
181
182 status = __vxge_hw_pio_mem_write64(val64,
183 &vp_reg->rts_access_steer_ctrl,
184 VXGE_HW_RTS_ACCESS_STEER_CTRL_STROBE,
185 VXGE_HW_DEF_DEVICE_POLL_MILLIS);
186
187 /* The __vxge_hw_device_register_poll can udelay for a significant
188 * amount of time, blocking other process from the CPU. If it delays
189 * for ~5secs, a NMI error can occur. A way around this is to give up
190 * the processor via msleep, but this is not allowed is under lock.
191 * So, only allow it to sleep for ~4secs if open. Otherwise, delay for
192 * 1sec and sleep for 10ms until the firmware operation has completed
193 * or timed-out.
194 */
195 while ((status != VXGE_HW_OK) && retry++ < max_retry) {
196 if (!vpath->vp_open)
197 msleep(20);
198 status = __vxge_hw_device_register_poll(
199 &vp_reg->rts_access_steer_ctrl,
200 VXGE_HW_RTS_ACCESS_STEER_CTRL_STROBE,
201 VXGE_HW_DEF_DEVICE_POLL_MILLIS);
202 }
203
204 if (status != VXGE_HW_OK)
205 goto out;
206
207 val64 = readq(&vp_reg->rts_access_steer_ctrl);
208 if (val64 & VXGE_HW_RTS_ACCESS_STEER_CTRL_RMACJ_STATUS) {
209 *data0 = readq(&vp_reg->rts_access_steer_data0);
210 *data1 = readq(&vp_reg->rts_access_steer_data1);
211 *steer_ctrl = val64;
212 } else
213 status = VXGE_HW_FAIL;
214
215 out:
216 if (vpath->vp_open)
217 spin_unlock(&vpath->lock);
218 return status;
219 }
220
221 enum vxge_hw_status
vxge_hw_upgrade_read_version(struct __vxge_hw_device * hldev,u32 * major,u32 * minor,u32 * build)222 vxge_hw_upgrade_read_version(struct __vxge_hw_device *hldev, u32 *major,
223 u32 *minor, u32 *build)
224 {
225 u64 data0 = 0, data1 = 0, steer_ctrl = 0;
226 struct __vxge_hw_virtualpath *vpath;
227 enum vxge_hw_status status;
228
229 vpath = &hldev->virtual_paths[hldev->first_vp_id];
230
231 status = vxge_hw_vpath_fw_api(vpath,
232 VXGE_HW_FW_UPGRADE_ACTION,
233 VXGE_HW_FW_UPGRADE_MEMO,
234 VXGE_HW_FW_UPGRADE_OFFSET_READ,
235 &data0, &data1, &steer_ctrl);
236 if (status != VXGE_HW_OK)
237 return status;
238
239 *major = VXGE_HW_RTS_ACCESS_STEER_DATA0_GET_FW_VER_MAJOR(data0);
240 *minor = VXGE_HW_RTS_ACCESS_STEER_DATA0_GET_FW_VER_MINOR(data0);
241 *build = VXGE_HW_RTS_ACCESS_STEER_DATA0_GET_FW_VER_BUILD(data0);
242
243 return status;
244 }
245
vxge_hw_flash_fw(struct __vxge_hw_device * hldev)246 enum vxge_hw_status vxge_hw_flash_fw(struct __vxge_hw_device *hldev)
247 {
248 u64 data0 = 0, data1 = 0, steer_ctrl = 0;
249 struct __vxge_hw_virtualpath *vpath;
250 enum vxge_hw_status status;
251 u32 ret;
252
253 vpath = &hldev->virtual_paths[hldev->first_vp_id];
254
255 status = vxge_hw_vpath_fw_api(vpath,
256 VXGE_HW_FW_UPGRADE_ACTION,
257 VXGE_HW_FW_UPGRADE_MEMO,
258 VXGE_HW_FW_UPGRADE_OFFSET_COMMIT,
259 &data0, &data1, &steer_ctrl);
260 if (status != VXGE_HW_OK) {
261 vxge_debug_init(VXGE_ERR, "%s: FW upgrade failed", __func__);
262 goto exit;
263 }
264
265 ret = VXGE_HW_RTS_ACCESS_STEER_CTRL_GET_ACTION(steer_ctrl) & 0x7F;
266 if (ret != 1) {
267 vxge_debug_init(VXGE_ERR, "%s: FW commit failed with error %d",
268 __func__, ret);
269 status = VXGE_HW_FAIL;
270 }
271
272 exit:
273 return status;
274 }
275
276 enum vxge_hw_status
vxge_update_fw_image(struct __vxge_hw_device * hldev,const u8 * fwdata,int size)277 vxge_update_fw_image(struct __vxge_hw_device *hldev, const u8 *fwdata, int size)
278 {
279 u64 data0 = 0, data1 = 0, steer_ctrl = 0;
280 struct __vxge_hw_virtualpath *vpath;
281 enum vxge_hw_status status;
282 int ret_code, sec_code;
283
284 vpath = &hldev->virtual_paths[hldev->first_vp_id];
285
286 /* send upgrade start command */
287 status = vxge_hw_vpath_fw_api(vpath,
288 VXGE_HW_FW_UPGRADE_ACTION,
289 VXGE_HW_FW_UPGRADE_MEMO,
290 VXGE_HW_FW_UPGRADE_OFFSET_START,
291 &data0, &data1, &steer_ctrl);
292 if (status != VXGE_HW_OK) {
293 vxge_debug_init(VXGE_ERR, " %s: Upgrade start cmd failed",
294 __func__);
295 return status;
296 }
297
298 /* Transfer fw image to adapter 16 bytes at a time */
299 for (; size > 0; size -= VXGE_HW_FW_UPGRADE_BLK_SIZE) {
300 steer_ctrl = 0;
301
302 /* The next 128bits of fwdata to be loaded onto the adapter */
303 data0 = *((u64 *)fwdata);
304 data1 = *((u64 *)fwdata + 1);
305
306 status = vxge_hw_vpath_fw_api(vpath,
307 VXGE_HW_FW_UPGRADE_ACTION,
308 VXGE_HW_FW_UPGRADE_MEMO,
309 VXGE_HW_FW_UPGRADE_OFFSET_SEND,
310 &data0, &data1, &steer_ctrl);
311 if (status != VXGE_HW_OK) {
312 vxge_debug_init(VXGE_ERR, "%s: Upgrade send failed",
313 __func__);
314 goto out;
315 }
316
317 ret_code = VXGE_HW_UPGRADE_GET_RET_ERR_CODE(data0);
318 switch (ret_code) {
319 case VXGE_HW_FW_UPGRADE_OK:
320 /* All OK, send next 16 bytes. */
321 break;
322 case VXGE_FW_UPGRADE_BYTES2SKIP:
323 /* skip bytes in the stream */
324 fwdata += (data0 >> 8) & 0xFFFFFFFF;
325 break;
326 case VXGE_HW_FW_UPGRADE_DONE:
327 goto out;
328 case VXGE_HW_FW_UPGRADE_ERR:
329 sec_code = VXGE_HW_UPGRADE_GET_SEC_ERR_CODE(data0);
330 switch (sec_code) {
331 case VXGE_HW_FW_UPGRADE_ERR_CORRUPT_DATA_1:
332 case VXGE_HW_FW_UPGRADE_ERR_CORRUPT_DATA_7:
333 printk(KERN_ERR
334 "corrupted data from .ncf file\n");
335 break;
336 case VXGE_HW_FW_UPGRADE_ERR_INV_NCF_FILE_3:
337 case VXGE_HW_FW_UPGRADE_ERR_INV_NCF_FILE_4:
338 case VXGE_HW_FW_UPGRADE_ERR_INV_NCF_FILE_5:
339 case VXGE_HW_FW_UPGRADE_ERR_INV_NCF_FILE_6:
340 case VXGE_HW_FW_UPGRADE_ERR_INV_NCF_FILE_8:
341 printk(KERN_ERR "invalid .ncf file\n");
342 break;
343 case VXGE_HW_FW_UPGRADE_ERR_BUFFER_OVERFLOW:
344 printk(KERN_ERR "buffer overflow\n");
345 break;
346 case VXGE_HW_FW_UPGRADE_ERR_FAILED_TO_FLASH:
347 printk(KERN_ERR "failed to flash the image\n");
348 break;
349 case VXGE_HW_FW_UPGRADE_ERR_GENERIC_ERROR_UNKNOWN:
350 printk(KERN_ERR
351 "generic error. Unknown error type\n");
352 break;
353 default:
354 printk(KERN_ERR "Unknown error of type %d\n",
355 sec_code);
356 break;
357 }
358 status = VXGE_HW_FAIL;
359 goto out;
360 default:
361 printk(KERN_ERR "Unknown FW error: %d\n", ret_code);
362 status = VXGE_HW_FAIL;
363 goto out;
364 }
365 /* point to next 16 bytes */
366 fwdata += VXGE_HW_FW_UPGRADE_BLK_SIZE;
367 }
368 out:
369 return status;
370 }
371
372 enum vxge_hw_status
vxge_hw_vpath_eprom_img_ver_get(struct __vxge_hw_device * hldev,struct eprom_image * img)373 vxge_hw_vpath_eprom_img_ver_get(struct __vxge_hw_device *hldev,
374 struct eprom_image *img)
375 {
376 u64 data0 = 0, data1 = 0, steer_ctrl = 0;
377 struct __vxge_hw_virtualpath *vpath;
378 enum vxge_hw_status status;
379 int i;
380
381 vpath = &hldev->virtual_paths[hldev->first_vp_id];
382
383 for (i = 0; i < VXGE_HW_MAX_ROM_IMAGES; i++) {
384 data0 = VXGE_HW_RTS_ACCESS_STEER_ROM_IMAGE_INDEX(i);
385 data1 = steer_ctrl = 0;
386
387 status = vxge_hw_vpath_fw_api(vpath,
388 VXGE_HW_FW_API_GET_EPROM_REV,
389 VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_FW_MEMO,
390 0, &data0, &data1, &steer_ctrl);
391 if (status != VXGE_HW_OK)
392 break;
393
394 img[i].is_valid = VXGE_HW_GET_EPROM_IMAGE_VALID(data0);
395 img[i].index = VXGE_HW_GET_EPROM_IMAGE_INDEX(data0);
396 img[i].type = VXGE_HW_GET_EPROM_IMAGE_TYPE(data0);
397 img[i].version = VXGE_HW_GET_EPROM_IMAGE_REV(data0);
398 }
399
400 return status;
401 }
402
403 /*
404 * __vxge_hw_channel_free - Free memory allocated for channel
405 * This function deallocates memory from the channel and various arrays
406 * in the channel
407 */
__vxge_hw_channel_free(struct __vxge_hw_channel * channel)408 static void __vxge_hw_channel_free(struct __vxge_hw_channel *channel)
409 {
410 kfree(channel->work_arr);
411 kfree(channel->free_arr);
412 kfree(channel->reserve_arr);
413 kfree(channel->orig_arr);
414 kfree(channel);
415 }
416
417 /*
418 * __vxge_hw_channel_initialize - Initialize a channel
419 * This function initializes a channel by properly setting the
420 * various references
421 */
422 static enum vxge_hw_status
__vxge_hw_channel_initialize(struct __vxge_hw_channel * channel)423 __vxge_hw_channel_initialize(struct __vxge_hw_channel *channel)
424 {
425 u32 i;
426 struct __vxge_hw_virtualpath *vpath;
427
428 vpath = channel->vph->vpath;
429
430 if ((channel->reserve_arr != NULL) && (channel->orig_arr != NULL)) {
431 for (i = 0; i < channel->length; i++)
432 channel->orig_arr[i] = channel->reserve_arr[i];
433 }
434
435 switch (channel->type) {
436 case VXGE_HW_CHANNEL_TYPE_FIFO:
437 vpath->fifoh = (struct __vxge_hw_fifo *)channel;
438 channel->stats = &((struct __vxge_hw_fifo *)
439 channel)->stats->common_stats;
440 break;
441 case VXGE_HW_CHANNEL_TYPE_RING:
442 vpath->ringh = (struct __vxge_hw_ring *)channel;
443 channel->stats = &((struct __vxge_hw_ring *)
444 channel)->stats->common_stats;
445 break;
446 default:
447 break;
448 }
449
450 return VXGE_HW_OK;
451 }
452
453 /*
454 * __vxge_hw_channel_reset - Resets a channel
455 * This function resets a channel by properly setting the various references
456 */
457 static enum vxge_hw_status
__vxge_hw_channel_reset(struct __vxge_hw_channel * channel)458 __vxge_hw_channel_reset(struct __vxge_hw_channel *channel)
459 {
460 u32 i;
461
462 for (i = 0; i < channel->length; i++) {
463 if (channel->reserve_arr != NULL)
464 channel->reserve_arr[i] = channel->orig_arr[i];
465 if (channel->free_arr != NULL)
466 channel->free_arr[i] = NULL;
467 if (channel->work_arr != NULL)
468 channel->work_arr[i] = NULL;
469 }
470 channel->free_ptr = channel->length;
471 channel->reserve_ptr = channel->length;
472 channel->reserve_top = 0;
473 channel->post_index = 0;
474 channel->compl_index = 0;
475
476 return VXGE_HW_OK;
477 }
478
479 /*
480 * __vxge_hw_device_pci_e_init
481 * Initialize certain PCI/PCI-X configuration registers
482 * with recommended values. Save config space for future hw resets.
483 */
__vxge_hw_device_pci_e_init(struct __vxge_hw_device * hldev)484 static void __vxge_hw_device_pci_e_init(struct __vxge_hw_device *hldev)
485 {
486 u16 cmd = 0;
487
488 /* Set the PErr Repconse bit and SERR in PCI command register. */
489 pci_read_config_word(hldev->pdev, PCI_COMMAND, &cmd);
490 cmd |= 0x140;
491 pci_write_config_word(hldev->pdev, PCI_COMMAND, cmd);
492
493 pci_save_state(hldev->pdev);
494 }
495
496 /* __vxge_hw_device_vpath_reset_in_prog_check - Check if vpath reset
497 * in progress
498 * This routine checks the vpath reset in progress register is turned zero
499 */
500 static enum vxge_hw_status
__vxge_hw_device_vpath_reset_in_prog_check(u64 __iomem * vpath_rst_in_prog)501 __vxge_hw_device_vpath_reset_in_prog_check(u64 __iomem *vpath_rst_in_prog)
502 {
503 enum vxge_hw_status status;
504 status = __vxge_hw_device_register_poll(vpath_rst_in_prog,
505 VXGE_HW_VPATH_RST_IN_PROG_VPATH_RST_IN_PROG(0x1ffff),
506 VXGE_HW_DEF_DEVICE_POLL_MILLIS);
507 return status;
508 }
509
510 /*
511 * _hw_legacy_swapper_set - Set the swapper bits for the legacy secion.
512 * Set the swapper bits appropriately for the lagacy section.
513 */
514 static enum vxge_hw_status
__vxge_hw_legacy_swapper_set(struct vxge_hw_legacy_reg __iomem * legacy_reg)515 __vxge_hw_legacy_swapper_set(struct vxge_hw_legacy_reg __iomem *legacy_reg)
516 {
517 u64 val64;
518 enum vxge_hw_status status = VXGE_HW_OK;
519
520 val64 = readq(&legacy_reg->toc_swapper_fb);
521
522 wmb();
523
524 switch (val64) {
525 case VXGE_HW_SWAPPER_INITIAL_VALUE:
526 return status;
527
528 case VXGE_HW_SWAPPER_BYTE_SWAPPED_BIT_FLIPPED:
529 writeq(VXGE_HW_SWAPPER_READ_BYTE_SWAP_ENABLE,
530 &legacy_reg->pifm_rd_swap_en);
531 writeq(VXGE_HW_SWAPPER_READ_BIT_FLAP_ENABLE,
532 &legacy_reg->pifm_rd_flip_en);
533 writeq(VXGE_HW_SWAPPER_WRITE_BYTE_SWAP_ENABLE,
534 &legacy_reg->pifm_wr_swap_en);
535 writeq(VXGE_HW_SWAPPER_WRITE_BIT_FLAP_ENABLE,
536 &legacy_reg->pifm_wr_flip_en);
537 break;
538
539 case VXGE_HW_SWAPPER_BYTE_SWAPPED:
540 writeq(VXGE_HW_SWAPPER_READ_BYTE_SWAP_ENABLE,
541 &legacy_reg->pifm_rd_swap_en);
542 writeq(VXGE_HW_SWAPPER_WRITE_BYTE_SWAP_ENABLE,
543 &legacy_reg->pifm_wr_swap_en);
544 break;
545
546 case VXGE_HW_SWAPPER_BIT_FLIPPED:
547 writeq(VXGE_HW_SWAPPER_READ_BIT_FLAP_ENABLE,
548 &legacy_reg->pifm_rd_flip_en);
549 writeq(VXGE_HW_SWAPPER_WRITE_BIT_FLAP_ENABLE,
550 &legacy_reg->pifm_wr_flip_en);
551 break;
552 }
553
554 wmb();
555
556 val64 = readq(&legacy_reg->toc_swapper_fb);
557
558 if (val64 != VXGE_HW_SWAPPER_INITIAL_VALUE)
559 status = VXGE_HW_ERR_SWAPPER_CTRL;
560
561 return status;
562 }
563
564 /*
565 * __vxge_hw_device_toc_get
566 * This routine sets the swapper and reads the toc pointer and returns the
567 * memory mapped address of the toc
568 */
569 static struct vxge_hw_toc_reg __iomem *
__vxge_hw_device_toc_get(void __iomem * bar0)570 __vxge_hw_device_toc_get(void __iomem *bar0)
571 {
572 u64 val64;
573 struct vxge_hw_toc_reg __iomem *toc = NULL;
574 enum vxge_hw_status status;
575
576 struct vxge_hw_legacy_reg __iomem *legacy_reg =
577 (struct vxge_hw_legacy_reg __iomem *)bar0;
578
579 status = __vxge_hw_legacy_swapper_set(legacy_reg);
580 if (status != VXGE_HW_OK)
581 goto exit;
582
583 val64 = readq(&legacy_reg->toc_first_pointer);
584 toc = bar0 + val64;
585 exit:
586 return toc;
587 }
588
589 /*
590 * __vxge_hw_device_reg_addr_get
591 * This routine sets the swapper and reads the toc pointer and initializes the
592 * register location pointers in the device object. It waits until the ric is
593 * completed initializing registers.
594 */
595 static enum vxge_hw_status
__vxge_hw_device_reg_addr_get(struct __vxge_hw_device * hldev)596 __vxge_hw_device_reg_addr_get(struct __vxge_hw_device *hldev)
597 {
598 u64 val64;
599 u32 i;
600 enum vxge_hw_status status = VXGE_HW_OK;
601
602 hldev->legacy_reg = hldev->bar0;
603
604 hldev->toc_reg = __vxge_hw_device_toc_get(hldev->bar0);
605 if (hldev->toc_reg == NULL) {
606 status = VXGE_HW_FAIL;
607 goto exit;
608 }
609
610 val64 = readq(&hldev->toc_reg->toc_common_pointer);
611 hldev->common_reg = hldev->bar0 + val64;
612
613 val64 = readq(&hldev->toc_reg->toc_mrpcim_pointer);
614 hldev->mrpcim_reg = hldev->bar0 + val64;
615
616 for (i = 0; i < VXGE_HW_TITAN_SRPCIM_REG_SPACES; i++) {
617 val64 = readq(&hldev->toc_reg->toc_srpcim_pointer[i]);
618 hldev->srpcim_reg[i] = hldev->bar0 + val64;
619 }
620
621 for (i = 0; i < VXGE_HW_TITAN_VPMGMT_REG_SPACES; i++) {
622 val64 = readq(&hldev->toc_reg->toc_vpmgmt_pointer[i]);
623 hldev->vpmgmt_reg[i] = hldev->bar0 + val64;
624 }
625
626 for (i = 0; i < VXGE_HW_TITAN_VPATH_REG_SPACES; i++) {
627 val64 = readq(&hldev->toc_reg->toc_vpath_pointer[i]);
628 hldev->vpath_reg[i] = hldev->bar0 + val64;
629 }
630
631 val64 = readq(&hldev->toc_reg->toc_kdfc);
632
633 switch (VXGE_HW_TOC_GET_KDFC_INITIAL_BIR(val64)) {
634 case 0:
635 hldev->kdfc = hldev->bar0 + VXGE_HW_TOC_GET_KDFC_INITIAL_OFFSET(val64) ;
636 break;
637 default:
638 break;
639 }
640
641 status = __vxge_hw_device_vpath_reset_in_prog_check(
642 (u64 __iomem *)&hldev->common_reg->vpath_rst_in_prog);
643 exit:
644 return status;
645 }
646
647 /*
648 * __vxge_hw_device_access_rights_get: Get Access Rights of the driver
649 * This routine returns the Access Rights of the driver
650 */
651 static u32
__vxge_hw_device_access_rights_get(u32 host_type,u32 func_id)652 __vxge_hw_device_access_rights_get(u32 host_type, u32 func_id)
653 {
654 u32 access_rights = VXGE_HW_DEVICE_ACCESS_RIGHT_VPATH;
655
656 switch (host_type) {
657 case VXGE_HW_NO_MR_NO_SR_NORMAL_FUNCTION:
658 if (func_id == 0) {
659 access_rights |= VXGE_HW_DEVICE_ACCESS_RIGHT_MRPCIM |
660 VXGE_HW_DEVICE_ACCESS_RIGHT_SRPCIM;
661 }
662 break;
663 case VXGE_HW_MR_NO_SR_VH0_BASE_FUNCTION:
664 access_rights |= VXGE_HW_DEVICE_ACCESS_RIGHT_MRPCIM |
665 VXGE_HW_DEVICE_ACCESS_RIGHT_SRPCIM;
666 break;
667 case VXGE_HW_NO_MR_SR_VH0_FUNCTION0:
668 access_rights |= VXGE_HW_DEVICE_ACCESS_RIGHT_MRPCIM |
669 VXGE_HW_DEVICE_ACCESS_RIGHT_SRPCIM;
670 break;
671 case VXGE_HW_NO_MR_SR_VH0_VIRTUAL_FUNCTION:
672 case VXGE_HW_SR_VH_VIRTUAL_FUNCTION:
673 case VXGE_HW_MR_SR_VH0_INVALID_CONFIG:
674 break;
675 case VXGE_HW_SR_VH_FUNCTION0:
676 case VXGE_HW_VH_NORMAL_FUNCTION:
677 access_rights |= VXGE_HW_DEVICE_ACCESS_RIGHT_SRPCIM;
678 break;
679 }
680
681 return access_rights;
682 }
683 /*
684 * __vxge_hw_device_is_privilaged
685 * This routine checks if the device function is privilaged or not
686 */
687
688 enum vxge_hw_status
__vxge_hw_device_is_privilaged(u32 host_type,u32 func_id)689 __vxge_hw_device_is_privilaged(u32 host_type, u32 func_id)
690 {
691 if (__vxge_hw_device_access_rights_get(host_type,
692 func_id) &
693 VXGE_HW_DEVICE_ACCESS_RIGHT_MRPCIM)
694 return VXGE_HW_OK;
695 else
696 return VXGE_HW_ERR_PRIVILEGED_OPERATION;
697 }
698
699 /*
700 * __vxge_hw_vpath_func_id_get - Get the function id of the vpath.
701 * Returns the function number of the vpath.
702 */
703 static u32
__vxge_hw_vpath_func_id_get(struct vxge_hw_vpmgmt_reg __iomem * vpmgmt_reg)704 __vxge_hw_vpath_func_id_get(struct vxge_hw_vpmgmt_reg __iomem *vpmgmt_reg)
705 {
706 u64 val64;
707
708 val64 = readq(&vpmgmt_reg->vpath_to_func_map_cfg1);
709
710 return
711 (u32)VXGE_HW_VPATH_TO_FUNC_MAP_CFG1_GET_VPATH_TO_FUNC_MAP_CFG1(val64);
712 }
713
714 /*
715 * __vxge_hw_device_host_info_get
716 * This routine returns the host type assignments
717 */
__vxge_hw_device_host_info_get(struct __vxge_hw_device * hldev)718 static void __vxge_hw_device_host_info_get(struct __vxge_hw_device *hldev)
719 {
720 u64 val64;
721 u32 i;
722
723 val64 = readq(&hldev->common_reg->host_type_assignments);
724
725 hldev->host_type =
726 (u32)VXGE_HW_HOST_TYPE_ASSIGNMENTS_GET_HOST_TYPE_ASSIGNMENTS(val64);
727
728 hldev->vpath_assignments = readq(&hldev->common_reg->vpath_assignments);
729
730 for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) {
731 if (!(hldev->vpath_assignments & vxge_mBIT(i)))
732 continue;
733
734 hldev->func_id =
735 __vxge_hw_vpath_func_id_get(hldev->vpmgmt_reg[i]);
736
737 hldev->access_rights = __vxge_hw_device_access_rights_get(
738 hldev->host_type, hldev->func_id);
739
740 hldev->virtual_paths[i].vp_open = VXGE_HW_VP_NOT_OPEN;
741 hldev->virtual_paths[i].vp_reg = hldev->vpath_reg[i];
742
743 hldev->first_vp_id = i;
744 break;
745 }
746 }
747
748 /*
749 * __vxge_hw_verify_pci_e_info - Validate the pci-e link parameters such as
750 * link width and signalling rate.
751 */
752 static enum vxge_hw_status
__vxge_hw_verify_pci_e_info(struct __vxge_hw_device * hldev)753 __vxge_hw_verify_pci_e_info(struct __vxge_hw_device *hldev)
754 {
755 struct pci_dev *dev = hldev->pdev;
756 u16 lnk;
757
758 /* Get the negotiated link width and speed from PCI config space */
759 pcie_capability_read_word(dev, PCI_EXP_LNKSTA, &lnk);
760
761 if ((lnk & PCI_EXP_LNKSTA_CLS) != 1)
762 return VXGE_HW_ERR_INVALID_PCI_INFO;
763
764 switch ((lnk & PCI_EXP_LNKSTA_NLW) >> 4) {
765 case PCIE_LNK_WIDTH_RESRV:
766 case PCIE_LNK_X1:
767 case PCIE_LNK_X2:
768 case PCIE_LNK_X4:
769 case PCIE_LNK_X8:
770 break;
771 default:
772 return VXGE_HW_ERR_INVALID_PCI_INFO;
773 }
774
775 return VXGE_HW_OK;
776 }
777
778 /*
779 * __vxge_hw_device_initialize
780 * Initialize Titan-V hardware.
781 */
782 static enum vxge_hw_status
__vxge_hw_device_initialize(struct __vxge_hw_device * hldev)783 __vxge_hw_device_initialize(struct __vxge_hw_device *hldev)
784 {
785 enum vxge_hw_status status = VXGE_HW_OK;
786
787 if (VXGE_HW_OK == __vxge_hw_device_is_privilaged(hldev->host_type,
788 hldev->func_id)) {
789 /* Validate the pci-e link width and speed */
790 status = __vxge_hw_verify_pci_e_info(hldev);
791 if (status != VXGE_HW_OK)
792 goto exit;
793 }
794
795 exit:
796 return status;
797 }
798
799 /*
800 * __vxge_hw_vpath_fw_ver_get - Get the fw version
801 * Returns FW Version
802 */
803 static enum vxge_hw_status
__vxge_hw_vpath_fw_ver_get(struct __vxge_hw_virtualpath * vpath,struct vxge_hw_device_hw_info * hw_info)804 __vxge_hw_vpath_fw_ver_get(struct __vxge_hw_virtualpath *vpath,
805 struct vxge_hw_device_hw_info *hw_info)
806 {
807 struct vxge_hw_device_version *fw_version = &hw_info->fw_version;
808 struct vxge_hw_device_date *fw_date = &hw_info->fw_date;
809 struct vxge_hw_device_version *flash_version = &hw_info->flash_version;
810 struct vxge_hw_device_date *flash_date = &hw_info->flash_date;
811 u64 data0 = 0, data1 = 0, steer_ctrl = 0;
812 enum vxge_hw_status status;
813
814 status = vxge_hw_vpath_fw_api(vpath,
815 VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION_READ_ENTRY,
816 VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_FW_MEMO,
817 0, &data0, &data1, &steer_ctrl);
818 if (status != VXGE_HW_OK)
819 goto exit;
820
821 fw_date->day =
822 (u32) VXGE_HW_RTS_ACCESS_STEER_DATA0_GET_FW_VER_DAY(data0);
823 fw_date->month =
824 (u32) VXGE_HW_RTS_ACCESS_STEER_DATA0_GET_FW_VER_MONTH(data0);
825 fw_date->year =
826 (u32) VXGE_HW_RTS_ACCESS_STEER_DATA0_GET_FW_VER_YEAR(data0);
827
828 snprintf(fw_date->date, VXGE_HW_FW_STRLEN, "%2.2d/%2.2d/%4.4d",
829 fw_date->month, fw_date->day, fw_date->year);
830
831 fw_version->major =
832 (u32) VXGE_HW_RTS_ACCESS_STEER_DATA0_GET_FW_VER_MAJOR(data0);
833 fw_version->minor =
834 (u32) VXGE_HW_RTS_ACCESS_STEER_DATA0_GET_FW_VER_MINOR(data0);
835 fw_version->build =
836 (u32) VXGE_HW_RTS_ACCESS_STEER_DATA0_GET_FW_VER_BUILD(data0);
837
838 snprintf(fw_version->version, VXGE_HW_FW_STRLEN, "%d.%d.%d",
839 fw_version->major, fw_version->minor, fw_version->build);
840
841 flash_date->day =
842 (u32) VXGE_HW_RTS_ACCESS_STEER_DATA1_GET_FLASH_VER_DAY(data1);
843 flash_date->month =
844 (u32) VXGE_HW_RTS_ACCESS_STEER_DATA1_GET_FLASH_VER_MONTH(data1);
845 flash_date->year =
846 (u32) VXGE_HW_RTS_ACCESS_STEER_DATA1_GET_FLASH_VER_YEAR(data1);
847
848 snprintf(flash_date->date, VXGE_HW_FW_STRLEN, "%2.2d/%2.2d/%4.4d",
849 flash_date->month, flash_date->day, flash_date->year);
850
851 flash_version->major =
852 (u32) VXGE_HW_RTS_ACCESS_STEER_DATA1_GET_FLASH_VER_MAJOR(data1);
853 flash_version->minor =
854 (u32) VXGE_HW_RTS_ACCESS_STEER_DATA1_GET_FLASH_VER_MINOR(data1);
855 flash_version->build =
856 (u32) VXGE_HW_RTS_ACCESS_STEER_DATA1_GET_FLASH_VER_BUILD(data1);
857
858 snprintf(flash_version->version, VXGE_HW_FW_STRLEN, "%d.%d.%d",
859 flash_version->major, flash_version->minor,
860 flash_version->build);
861
862 exit:
863 return status;
864 }
865
866 /*
867 * __vxge_hw_vpath_card_info_get - Get the serial numbers,
868 * part number and product description.
869 */
870 static enum vxge_hw_status
__vxge_hw_vpath_card_info_get(struct __vxge_hw_virtualpath * vpath,struct vxge_hw_device_hw_info * hw_info)871 __vxge_hw_vpath_card_info_get(struct __vxge_hw_virtualpath *vpath,
872 struct vxge_hw_device_hw_info *hw_info)
873 {
874 enum vxge_hw_status status;
875 u64 data0, data1 = 0, steer_ctrl = 0;
876 u8 *serial_number = hw_info->serial_number;
877 u8 *part_number = hw_info->part_number;
878 u8 *product_desc = hw_info->product_desc;
879 u32 i, j = 0;
880
881 data0 = VXGE_HW_RTS_ACCESS_STEER_DATA0_MEMO_ITEM_SERIAL_NUMBER;
882
883 status = vxge_hw_vpath_fw_api(vpath,
884 VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION_READ_MEMO_ENTRY,
885 VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_FW_MEMO,
886 0, &data0, &data1, &steer_ctrl);
887 if (status != VXGE_HW_OK)
888 return status;
889
890 ((u64 *)serial_number)[0] = be64_to_cpu(data0);
891 ((u64 *)serial_number)[1] = be64_to_cpu(data1);
892
893 data0 = VXGE_HW_RTS_ACCESS_STEER_DATA0_MEMO_ITEM_PART_NUMBER;
894 data1 = steer_ctrl = 0;
895
896 status = vxge_hw_vpath_fw_api(vpath,
897 VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION_READ_MEMO_ENTRY,
898 VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_FW_MEMO,
899 0, &data0, &data1, &steer_ctrl);
900 if (status != VXGE_HW_OK)
901 return status;
902
903 ((u64 *)part_number)[0] = be64_to_cpu(data0);
904 ((u64 *)part_number)[1] = be64_to_cpu(data1);
905
906 for (i = VXGE_HW_RTS_ACCESS_STEER_DATA0_MEMO_ITEM_DESC_0;
907 i <= VXGE_HW_RTS_ACCESS_STEER_DATA0_MEMO_ITEM_DESC_3; i++) {
908 data0 = i;
909 data1 = steer_ctrl = 0;
910
911 status = vxge_hw_vpath_fw_api(vpath,
912 VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION_READ_MEMO_ENTRY,
913 VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_FW_MEMO,
914 0, &data0, &data1, &steer_ctrl);
915 if (status != VXGE_HW_OK)
916 return status;
917
918 ((u64 *)product_desc)[j++] = be64_to_cpu(data0);
919 ((u64 *)product_desc)[j++] = be64_to_cpu(data1);
920 }
921
922 return status;
923 }
924
925 /*
926 * __vxge_hw_vpath_pci_func_mode_get - Get the pci mode
927 * Returns pci function mode
928 */
929 static enum vxge_hw_status
__vxge_hw_vpath_pci_func_mode_get(struct __vxge_hw_virtualpath * vpath,struct vxge_hw_device_hw_info * hw_info)930 __vxge_hw_vpath_pci_func_mode_get(struct __vxge_hw_virtualpath *vpath,
931 struct vxge_hw_device_hw_info *hw_info)
932 {
933 u64 data0, data1 = 0, steer_ctrl = 0;
934 enum vxge_hw_status status;
935
936 data0 = 0;
937
938 status = vxge_hw_vpath_fw_api(vpath,
939 VXGE_HW_FW_API_GET_FUNC_MODE,
940 VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_FW_MEMO,
941 0, &data0, &data1, &steer_ctrl);
942 if (status != VXGE_HW_OK)
943 return status;
944
945 hw_info->function_mode = VXGE_HW_GET_FUNC_MODE_VAL(data0);
946 return status;
947 }
948
949 /*
950 * __vxge_hw_vpath_addr_get - Get the hw address entry for this vpath
951 * from MAC address table.
952 */
953 static enum vxge_hw_status
__vxge_hw_vpath_addr_get(struct __vxge_hw_virtualpath * vpath,u8 * macaddr,u8 * macaddr_mask)954 __vxge_hw_vpath_addr_get(struct __vxge_hw_virtualpath *vpath,
955 u8 *macaddr, u8 *macaddr_mask)
956 {
957 u64 action = VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION_LIST_FIRST_ENTRY,
958 data0 = 0, data1 = 0, steer_ctrl = 0;
959 enum vxge_hw_status status;
960 int i;
961
962 do {
963 status = vxge_hw_vpath_fw_api(vpath, action,
964 VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_DA,
965 0, &data0, &data1, &steer_ctrl);
966 if (status != VXGE_HW_OK)
967 goto exit;
968
969 data0 = VXGE_HW_RTS_ACCESS_STEER_DATA0_GET_DA_MAC_ADDR(data0);
970 data1 = VXGE_HW_RTS_ACCESS_STEER_DATA1_GET_DA_MAC_ADDR_MASK(
971 data1);
972
973 for (i = ETH_ALEN; i > 0; i--) {
974 macaddr[i - 1] = (u8) (data0 & 0xFF);
975 data0 >>= 8;
976
977 macaddr_mask[i - 1] = (u8) (data1 & 0xFF);
978 data1 >>= 8;
979 }
980
981 action = VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION_LIST_NEXT_ENTRY;
982 data0 = 0, data1 = 0, steer_ctrl = 0;
983
984 } while (!is_valid_ether_addr(macaddr));
985 exit:
986 return status;
987 }
988
989 /**
990 * vxge_hw_device_hw_info_get - Get the hw information
991 * Returns the vpath mask that has the bits set for each vpath allocated
992 * for the driver, FW version information, and the first mac address for
993 * each vpath
994 */
995 enum vxge_hw_status
vxge_hw_device_hw_info_get(void __iomem * bar0,struct vxge_hw_device_hw_info * hw_info)996 vxge_hw_device_hw_info_get(void __iomem *bar0,
997 struct vxge_hw_device_hw_info *hw_info)
998 {
999 u32 i;
1000 u64 val64;
1001 struct vxge_hw_toc_reg __iomem *toc;
1002 struct vxge_hw_mrpcim_reg __iomem *mrpcim_reg;
1003 struct vxge_hw_common_reg __iomem *common_reg;
1004 struct vxge_hw_vpmgmt_reg __iomem *vpmgmt_reg;
1005 enum vxge_hw_status status;
1006 struct __vxge_hw_virtualpath vpath;
1007
1008 memset(hw_info, 0, sizeof(struct vxge_hw_device_hw_info));
1009
1010 toc = __vxge_hw_device_toc_get(bar0);
1011 if (toc == NULL) {
1012 status = VXGE_HW_ERR_CRITICAL;
1013 goto exit;
1014 }
1015
1016 val64 = readq(&toc->toc_common_pointer);
1017 common_reg = bar0 + val64;
1018
1019 status = __vxge_hw_device_vpath_reset_in_prog_check(
1020 (u64 __iomem *)&common_reg->vpath_rst_in_prog);
1021 if (status != VXGE_HW_OK)
1022 goto exit;
1023
1024 hw_info->vpath_mask = readq(&common_reg->vpath_assignments);
1025
1026 val64 = readq(&common_reg->host_type_assignments);
1027
1028 hw_info->host_type =
1029 (u32)VXGE_HW_HOST_TYPE_ASSIGNMENTS_GET_HOST_TYPE_ASSIGNMENTS(val64);
1030
1031 for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) {
1032 if (!((hw_info->vpath_mask) & vxge_mBIT(i)))
1033 continue;
1034
1035 val64 = readq(&toc->toc_vpmgmt_pointer[i]);
1036
1037 vpmgmt_reg = bar0 + val64;
1038
1039 hw_info->func_id = __vxge_hw_vpath_func_id_get(vpmgmt_reg);
1040 if (__vxge_hw_device_access_rights_get(hw_info->host_type,
1041 hw_info->func_id) &
1042 VXGE_HW_DEVICE_ACCESS_RIGHT_MRPCIM) {
1043
1044 val64 = readq(&toc->toc_mrpcim_pointer);
1045
1046 mrpcim_reg = bar0 + val64;
1047
1048 writeq(0, &mrpcim_reg->xgmac_gen_fw_memo_mask);
1049 wmb();
1050 }
1051
1052 val64 = readq(&toc->toc_vpath_pointer[i]);
1053
1054 spin_lock_init(&vpath.lock);
1055 vpath.vp_reg = bar0 + val64;
1056 vpath.vp_open = VXGE_HW_VP_NOT_OPEN;
1057
1058 status = __vxge_hw_vpath_pci_func_mode_get(&vpath, hw_info);
1059 if (status != VXGE_HW_OK)
1060 goto exit;
1061
1062 status = __vxge_hw_vpath_fw_ver_get(&vpath, hw_info);
1063 if (status != VXGE_HW_OK)
1064 goto exit;
1065
1066 status = __vxge_hw_vpath_card_info_get(&vpath, hw_info);
1067 if (status != VXGE_HW_OK)
1068 goto exit;
1069
1070 break;
1071 }
1072
1073 for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) {
1074 if (!((hw_info->vpath_mask) & vxge_mBIT(i)))
1075 continue;
1076
1077 val64 = readq(&toc->toc_vpath_pointer[i]);
1078 vpath.vp_reg = bar0 + val64;
1079 vpath.vp_open = VXGE_HW_VP_NOT_OPEN;
1080
1081 status = __vxge_hw_vpath_addr_get(&vpath,
1082 hw_info->mac_addrs[i],
1083 hw_info->mac_addr_masks[i]);
1084 if (status != VXGE_HW_OK)
1085 goto exit;
1086 }
1087 exit:
1088 return status;
1089 }
1090
1091 /*
1092 * __vxge_hw_blockpool_destroy - Deallocates the block pool
1093 */
__vxge_hw_blockpool_destroy(struct __vxge_hw_blockpool * blockpool)1094 static void __vxge_hw_blockpool_destroy(struct __vxge_hw_blockpool *blockpool)
1095 {
1096 struct __vxge_hw_device *hldev;
1097 struct list_head *p, *n;
1098
1099 if (!blockpool)
1100 return;
1101
1102 hldev = blockpool->hldev;
1103
1104 list_for_each_safe(p, n, &blockpool->free_block_list) {
1105 pci_unmap_single(hldev->pdev,
1106 ((struct __vxge_hw_blockpool_entry *)p)->dma_addr,
1107 ((struct __vxge_hw_blockpool_entry *)p)->length,
1108 PCI_DMA_BIDIRECTIONAL);
1109
1110 vxge_os_dma_free(hldev->pdev,
1111 ((struct __vxge_hw_blockpool_entry *)p)->memblock,
1112 &((struct __vxge_hw_blockpool_entry *)p)->acc_handle);
1113
1114 list_del(&((struct __vxge_hw_blockpool_entry *)p)->item);
1115 kfree(p);
1116 blockpool->pool_size--;
1117 }
1118
1119 list_for_each_safe(p, n, &blockpool->free_entry_list) {
1120 list_del(&((struct __vxge_hw_blockpool_entry *)p)->item);
1121 kfree((void *)p);
1122 }
1123
1124 return;
1125 }
1126
1127 /*
1128 * __vxge_hw_blockpool_create - Create block pool
1129 */
1130 static enum vxge_hw_status
__vxge_hw_blockpool_create(struct __vxge_hw_device * hldev,struct __vxge_hw_blockpool * blockpool,u32 pool_size,u32 pool_max)1131 __vxge_hw_blockpool_create(struct __vxge_hw_device *hldev,
1132 struct __vxge_hw_blockpool *blockpool,
1133 u32 pool_size,
1134 u32 pool_max)
1135 {
1136 u32 i;
1137 struct __vxge_hw_blockpool_entry *entry = NULL;
1138 void *memblock;
1139 dma_addr_t dma_addr;
1140 struct pci_dev *dma_handle;
1141 struct pci_dev *acc_handle;
1142 enum vxge_hw_status status = VXGE_HW_OK;
1143
1144 if (blockpool == NULL) {
1145 status = VXGE_HW_FAIL;
1146 goto blockpool_create_exit;
1147 }
1148
1149 blockpool->hldev = hldev;
1150 blockpool->block_size = VXGE_HW_BLOCK_SIZE;
1151 blockpool->pool_size = 0;
1152 blockpool->pool_max = pool_max;
1153 blockpool->req_out = 0;
1154
1155 INIT_LIST_HEAD(&blockpool->free_block_list);
1156 INIT_LIST_HEAD(&blockpool->free_entry_list);
1157
1158 for (i = 0; i < pool_size + pool_max; i++) {
1159 entry = kzalloc(sizeof(struct __vxge_hw_blockpool_entry),
1160 GFP_KERNEL);
1161 if (entry == NULL) {
1162 __vxge_hw_blockpool_destroy(blockpool);
1163 status = VXGE_HW_ERR_OUT_OF_MEMORY;
1164 goto blockpool_create_exit;
1165 }
1166 list_add(&entry->item, &blockpool->free_entry_list);
1167 }
1168
1169 for (i = 0; i < pool_size; i++) {
1170 memblock = vxge_os_dma_malloc(
1171 hldev->pdev,
1172 VXGE_HW_BLOCK_SIZE,
1173 &dma_handle,
1174 &acc_handle);
1175 if (memblock == NULL) {
1176 __vxge_hw_blockpool_destroy(blockpool);
1177 status = VXGE_HW_ERR_OUT_OF_MEMORY;
1178 goto blockpool_create_exit;
1179 }
1180
1181 dma_addr = pci_map_single(hldev->pdev, memblock,
1182 VXGE_HW_BLOCK_SIZE, PCI_DMA_BIDIRECTIONAL);
1183 if (unlikely(pci_dma_mapping_error(hldev->pdev,
1184 dma_addr))) {
1185 vxge_os_dma_free(hldev->pdev, memblock, &acc_handle);
1186 __vxge_hw_blockpool_destroy(blockpool);
1187 status = VXGE_HW_ERR_OUT_OF_MEMORY;
1188 goto blockpool_create_exit;
1189 }
1190
1191 if (!list_empty(&blockpool->free_entry_list))
1192 entry = (struct __vxge_hw_blockpool_entry *)
1193 list_first_entry(&blockpool->free_entry_list,
1194 struct __vxge_hw_blockpool_entry,
1195 item);
1196
1197 if (entry == NULL)
1198 entry =
1199 kzalloc(sizeof(struct __vxge_hw_blockpool_entry),
1200 GFP_KERNEL);
1201 if (entry != NULL) {
1202 list_del(&entry->item);
1203 entry->length = VXGE_HW_BLOCK_SIZE;
1204 entry->memblock = memblock;
1205 entry->dma_addr = dma_addr;
1206 entry->acc_handle = acc_handle;
1207 entry->dma_handle = dma_handle;
1208 list_add(&entry->item,
1209 &blockpool->free_block_list);
1210 blockpool->pool_size++;
1211 } else {
1212 __vxge_hw_blockpool_destroy(blockpool);
1213 status = VXGE_HW_ERR_OUT_OF_MEMORY;
1214 goto blockpool_create_exit;
1215 }
1216 }
1217
1218 blockpool_create_exit:
1219 return status;
1220 }
1221
1222 /*
1223 * __vxge_hw_device_fifo_config_check - Check fifo configuration.
1224 * Check the fifo configuration
1225 */
1226 static enum vxge_hw_status
__vxge_hw_device_fifo_config_check(struct vxge_hw_fifo_config * fifo_config)1227 __vxge_hw_device_fifo_config_check(struct vxge_hw_fifo_config *fifo_config)
1228 {
1229 if ((fifo_config->fifo_blocks < VXGE_HW_MIN_FIFO_BLOCKS) ||
1230 (fifo_config->fifo_blocks > VXGE_HW_MAX_FIFO_BLOCKS))
1231 return VXGE_HW_BADCFG_FIFO_BLOCKS;
1232
1233 return VXGE_HW_OK;
1234 }
1235
1236 /*
1237 * __vxge_hw_device_vpath_config_check - Check vpath configuration.
1238 * Check the vpath configuration
1239 */
1240 static enum vxge_hw_status
__vxge_hw_device_vpath_config_check(struct vxge_hw_vp_config * vp_config)1241 __vxge_hw_device_vpath_config_check(struct vxge_hw_vp_config *vp_config)
1242 {
1243 enum vxge_hw_status status;
1244
1245 if ((vp_config->min_bandwidth < VXGE_HW_VPATH_BANDWIDTH_MIN) ||
1246 (vp_config->min_bandwidth > VXGE_HW_VPATH_BANDWIDTH_MAX))
1247 return VXGE_HW_BADCFG_VPATH_MIN_BANDWIDTH;
1248
1249 status = __vxge_hw_device_fifo_config_check(&vp_config->fifo);
1250 if (status != VXGE_HW_OK)
1251 return status;
1252
1253 if ((vp_config->mtu != VXGE_HW_VPATH_USE_FLASH_DEFAULT_INITIAL_MTU) &&
1254 ((vp_config->mtu < VXGE_HW_VPATH_MIN_INITIAL_MTU) ||
1255 (vp_config->mtu > VXGE_HW_VPATH_MAX_INITIAL_MTU)))
1256 return VXGE_HW_BADCFG_VPATH_MTU;
1257
1258 if ((vp_config->rpa_strip_vlan_tag !=
1259 VXGE_HW_VPATH_RPA_STRIP_VLAN_TAG_USE_FLASH_DEFAULT) &&
1260 (vp_config->rpa_strip_vlan_tag !=
1261 VXGE_HW_VPATH_RPA_STRIP_VLAN_TAG_ENABLE) &&
1262 (vp_config->rpa_strip_vlan_tag !=
1263 VXGE_HW_VPATH_RPA_STRIP_VLAN_TAG_DISABLE))
1264 return VXGE_HW_BADCFG_VPATH_RPA_STRIP_VLAN_TAG;
1265
1266 return VXGE_HW_OK;
1267 }
1268
1269 /*
1270 * __vxge_hw_device_config_check - Check device configuration.
1271 * Check the device configuration
1272 */
1273 static enum vxge_hw_status
__vxge_hw_device_config_check(struct vxge_hw_device_config * new_config)1274 __vxge_hw_device_config_check(struct vxge_hw_device_config *new_config)
1275 {
1276 u32 i;
1277 enum vxge_hw_status status;
1278
1279 if ((new_config->intr_mode != VXGE_HW_INTR_MODE_IRQLINE) &&
1280 (new_config->intr_mode != VXGE_HW_INTR_MODE_MSIX) &&
1281 (new_config->intr_mode != VXGE_HW_INTR_MODE_MSIX_ONE_SHOT) &&
1282 (new_config->intr_mode != VXGE_HW_INTR_MODE_DEF))
1283 return VXGE_HW_BADCFG_INTR_MODE;
1284
1285 if ((new_config->rts_mac_en != VXGE_HW_RTS_MAC_DISABLE) &&
1286 (new_config->rts_mac_en != VXGE_HW_RTS_MAC_ENABLE))
1287 return VXGE_HW_BADCFG_RTS_MAC_EN;
1288
1289 for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) {
1290 status = __vxge_hw_device_vpath_config_check(
1291 &new_config->vp_config[i]);
1292 if (status != VXGE_HW_OK)
1293 return status;
1294 }
1295
1296 return VXGE_HW_OK;
1297 }
1298
1299 /*
1300 * vxge_hw_device_initialize - Initialize Titan device.
1301 * Initialize Titan device. Note that all the arguments of this public API
1302 * are 'IN', including @hldev. Driver cooperates with
1303 * OS to find new Titan device, locate its PCI and memory spaces.
1304 *
1305 * When done, the driver allocates sizeof(struct __vxge_hw_device) bytes for HW
1306 * to enable the latter to perform Titan hardware initialization.
1307 */
1308 enum vxge_hw_status
vxge_hw_device_initialize(struct __vxge_hw_device ** devh,struct vxge_hw_device_attr * attr,struct vxge_hw_device_config * device_config)1309 vxge_hw_device_initialize(
1310 struct __vxge_hw_device **devh,
1311 struct vxge_hw_device_attr *attr,
1312 struct vxge_hw_device_config *device_config)
1313 {
1314 u32 i;
1315 u32 nblocks = 0;
1316 struct __vxge_hw_device *hldev = NULL;
1317 enum vxge_hw_status status = VXGE_HW_OK;
1318
1319 status = __vxge_hw_device_config_check(device_config);
1320 if (status != VXGE_HW_OK)
1321 goto exit;
1322
1323 hldev = vzalloc(sizeof(struct __vxge_hw_device));
1324 if (hldev == NULL) {
1325 status = VXGE_HW_ERR_OUT_OF_MEMORY;
1326 goto exit;
1327 }
1328
1329 hldev->magic = VXGE_HW_DEVICE_MAGIC;
1330
1331 vxge_hw_device_debug_set(hldev, VXGE_ERR, VXGE_COMPONENT_ALL);
1332
1333 /* apply config */
1334 memcpy(&hldev->config, device_config,
1335 sizeof(struct vxge_hw_device_config));
1336
1337 hldev->bar0 = attr->bar0;
1338 hldev->pdev = attr->pdev;
1339
1340 hldev->uld_callbacks = attr->uld_callbacks;
1341
1342 __vxge_hw_device_pci_e_init(hldev);
1343
1344 status = __vxge_hw_device_reg_addr_get(hldev);
1345 if (status != VXGE_HW_OK) {
1346 vfree(hldev);
1347 goto exit;
1348 }
1349
1350 __vxge_hw_device_host_info_get(hldev);
1351
1352 /* Incrementing for stats blocks */
1353 nblocks++;
1354
1355 for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) {
1356 if (!(hldev->vpath_assignments & vxge_mBIT(i)))
1357 continue;
1358
1359 if (device_config->vp_config[i].ring.enable ==
1360 VXGE_HW_RING_ENABLE)
1361 nblocks += device_config->vp_config[i].ring.ring_blocks;
1362
1363 if (device_config->vp_config[i].fifo.enable ==
1364 VXGE_HW_FIFO_ENABLE)
1365 nblocks += device_config->vp_config[i].fifo.fifo_blocks;
1366 nblocks++;
1367 }
1368
1369 if (__vxge_hw_blockpool_create(hldev,
1370 &hldev->block_pool,
1371 device_config->dma_blockpool_initial + nblocks,
1372 device_config->dma_blockpool_max + nblocks) != VXGE_HW_OK) {
1373
1374 vxge_hw_device_terminate(hldev);
1375 status = VXGE_HW_ERR_OUT_OF_MEMORY;
1376 goto exit;
1377 }
1378
1379 status = __vxge_hw_device_initialize(hldev);
1380 if (status != VXGE_HW_OK) {
1381 vxge_hw_device_terminate(hldev);
1382 goto exit;
1383 }
1384
1385 *devh = hldev;
1386 exit:
1387 return status;
1388 }
1389
1390 /*
1391 * vxge_hw_device_terminate - Terminate Titan device.
1392 * Terminate HW device.
1393 */
1394 void
vxge_hw_device_terminate(struct __vxge_hw_device * hldev)1395 vxge_hw_device_terminate(struct __vxge_hw_device *hldev)
1396 {
1397 vxge_assert(hldev->magic == VXGE_HW_DEVICE_MAGIC);
1398
1399 hldev->magic = VXGE_HW_DEVICE_DEAD;
1400 __vxge_hw_blockpool_destroy(&hldev->block_pool);
1401 vfree(hldev);
1402 }
1403
1404 /*
1405 * __vxge_hw_vpath_stats_access - Get the statistics from the given location
1406 * and offset and perform an operation
1407 */
1408 static enum vxge_hw_status
__vxge_hw_vpath_stats_access(struct __vxge_hw_virtualpath * vpath,u32 operation,u32 offset,u64 * stat)1409 __vxge_hw_vpath_stats_access(struct __vxge_hw_virtualpath *vpath,
1410 u32 operation, u32 offset, u64 *stat)
1411 {
1412 u64 val64;
1413 enum vxge_hw_status status = VXGE_HW_OK;
1414 struct vxge_hw_vpath_reg __iomem *vp_reg;
1415
1416 if (vpath->vp_open == VXGE_HW_VP_NOT_OPEN) {
1417 status = VXGE_HW_ERR_VPATH_NOT_OPEN;
1418 goto vpath_stats_access_exit;
1419 }
1420
1421 vp_reg = vpath->vp_reg;
1422
1423 val64 = VXGE_HW_XMAC_STATS_ACCESS_CMD_OP(operation) |
1424 VXGE_HW_XMAC_STATS_ACCESS_CMD_STROBE |
1425 VXGE_HW_XMAC_STATS_ACCESS_CMD_OFFSET_SEL(offset);
1426
1427 status = __vxge_hw_pio_mem_write64(val64,
1428 &vp_reg->xmac_stats_access_cmd,
1429 VXGE_HW_XMAC_STATS_ACCESS_CMD_STROBE,
1430 vpath->hldev->config.device_poll_millis);
1431 if ((status == VXGE_HW_OK) && (operation == VXGE_HW_STATS_OP_READ))
1432 *stat = readq(&vp_reg->xmac_stats_access_data);
1433 else
1434 *stat = 0;
1435
1436 vpath_stats_access_exit:
1437 return status;
1438 }
1439
1440 /*
1441 * __vxge_hw_vpath_xmac_tx_stats_get - Get the TX Statistics of a vpath
1442 */
1443 static enum vxge_hw_status
__vxge_hw_vpath_xmac_tx_stats_get(struct __vxge_hw_virtualpath * vpath,struct vxge_hw_xmac_vpath_tx_stats * vpath_tx_stats)1444 __vxge_hw_vpath_xmac_tx_stats_get(struct __vxge_hw_virtualpath *vpath,
1445 struct vxge_hw_xmac_vpath_tx_stats *vpath_tx_stats)
1446 {
1447 u64 *val64;
1448 int i;
1449 u32 offset = VXGE_HW_STATS_VPATH_TX_OFFSET;
1450 enum vxge_hw_status status = VXGE_HW_OK;
1451
1452 val64 = (u64 *)vpath_tx_stats;
1453
1454 if (vpath->vp_open == VXGE_HW_VP_NOT_OPEN) {
1455 status = VXGE_HW_ERR_VPATH_NOT_OPEN;
1456 goto exit;
1457 }
1458
1459 for (i = 0; i < sizeof(struct vxge_hw_xmac_vpath_tx_stats) / 8; i++) {
1460 status = __vxge_hw_vpath_stats_access(vpath,
1461 VXGE_HW_STATS_OP_READ,
1462 offset, val64);
1463 if (status != VXGE_HW_OK)
1464 goto exit;
1465 offset++;
1466 val64++;
1467 }
1468 exit:
1469 return status;
1470 }
1471
1472 /*
1473 * __vxge_hw_vpath_xmac_rx_stats_get - Get the RX Statistics of a vpath
1474 */
1475 static enum vxge_hw_status
__vxge_hw_vpath_xmac_rx_stats_get(struct __vxge_hw_virtualpath * vpath,struct vxge_hw_xmac_vpath_rx_stats * vpath_rx_stats)1476 __vxge_hw_vpath_xmac_rx_stats_get(struct __vxge_hw_virtualpath *vpath,
1477 struct vxge_hw_xmac_vpath_rx_stats *vpath_rx_stats)
1478 {
1479 u64 *val64;
1480 enum vxge_hw_status status = VXGE_HW_OK;
1481 int i;
1482 u32 offset = VXGE_HW_STATS_VPATH_RX_OFFSET;
1483 val64 = (u64 *) vpath_rx_stats;
1484
1485 if (vpath->vp_open == VXGE_HW_VP_NOT_OPEN) {
1486 status = VXGE_HW_ERR_VPATH_NOT_OPEN;
1487 goto exit;
1488 }
1489 for (i = 0; i < sizeof(struct vxge_hw_xmac_vpath_rx_stats) / 8; i++) {
1490 status = __vxge_hw_vpath_stats_access(vpath,
1491 VXGE_HW_STATS_OP_READ,
1492 offset >> 3, val64);
1493 if (status != VXGE_HW_OK)
1494 goto exit;
1495
1496 offset += 8;
1497 val64++;
1498 }
1499 exit:
1500 return status;
1501 }
1502
1503 /*
1504 * __vxge_hw_vpath_stats_get - Get the vpath hw statistics.
1505 */
1506 static enum vxge_hw_status
__vxge_hw_vpath_stats_get(struct __vxge_hw_virtualpath * vpath,struct vxge_hw_vpath_stats_hw_info * hw_stats)1507 __vxge_hw_vpath_stats_get(struct __vxge_hw_virtualpath *vpath,
1508 struct vxge_hw_vpath_stats_hw_info *hw_stats)
1509 {
1510 u64 val64;
1511 enum vxge_hw_status status = VXGE_HW_OK;
1512 struct vxge_hw_vpath_reg __iomem *vp_reg;
1513
1514 if (vpath->vp_open == VXGE_HW_VP_NOT_OPEN) {
1515 status = VXGE_HW_ERR_VPATH_NOT_OPEN;
1516 goto exit;
1517 }
1518 vp_reg = vpath->vp_reg;
1519
1520 val64 = readq(&vp_reg->vpath_debug_stats0);
1521 hw_stats->ini_num_mwr_sent =
1522 (u32)VXGE_HW_VPATH_DEBUG_STATS0_GET_INI_NUM_MWR_SENT(val64);
1523
1524 val64 = readq(&vp_reg->vpath_debug_stats1);
1525 hw_stats->ini_num_mrd_sent =
1526 (u32)VXGE_HW_VPATH_DEBUG_STATS1_GET_INI_NUM_MRD_SENT(val64);
1527
1528 val64 = readq(&vp_reg->vpath_debug_stats2);
1529 hw_stats->ini_num_cpl_rcvd =
1530 (u32)VXGE_HW_VPATH_DEBUG_STATS2_GET_INI_NUM_CPL_RCVD(val64);
1531
1532 val64 = readq(&vp_reg->vpath_debug_stats3);
1533 hw_stats->ini_num_mwr_byte_sent =
1534 VXGE_HW_VPATH_DEBUG_STATS3_GET_INI_NUM_MWR_BYTE_SENT(val64);
1535
1536 val64 = readq(&vp_reg->vpath_debug_stats4);
1537 hw_stats->ini_num_cpl_byte_rcvd =
1538 VXGE_HW_VPATH_DEBUG_STATS4_GET_INI_NUM_CPL_BYTE_RCVD(val64);
1539
1540 val64 = readq(&vp_reg->vpath_debug_stats5);
1541 hw_stats->wrcrdtarb_xoff =
1542 (u32)VXGE_HW_VPATH_DEBUG_STATS5_GET_WRCRDTARB_XOFF(val64);
1543
1544 val64 = readq(&vp_reg->vpath_debug_stats6);
1545 hw_stats->rdcrdtarb_xoff =
1546 (u32)VXGE_HW_VPATH_DEBUG_STATS6_GET_RDCRDTARB_XOFF(val64);
1547
1548 val64 = readq(&vp_reg->vpath_genstats_count01);
1549 hw_stats->vpath_genstats_count0 =
1550 (u32)VXGE_HW_VPATH_GENSTATS_COUNT01_GET_PPIF_VPATH_GENSTATS_COUNT0(
1551 val64);
1552
1553 val64 = readq(&vp_reg->vpath_genstats_count01);
1554 hw_stats->vpath_genstats_count1 =
1555 (u32)VXGE_HW_VPATH_GENSTATS_COUNT01_GET_PPIF_VPATH_GENSTATS_COUNT1(
1556 val64);
1557
1558 val64 = readq(&vp_reg->vpath_genstats_count23);
1559 hw_stats->vpath_genstats_count2 =
1560 (u32)VXGE_HW_VPATH_GENSTATS_COUNT23_GET_PPIF_VPATH_GENSTATS_COUNT2(
1561 val64);
1562
1563 val64 = readq(&vp_reg->vpath_genstats_count01);
1564 hw_stats->vpath_genstats_count3 =
1565 (u32)VXGE_HW_VPATH_GENSTATS_COUNT23_GET_PPIF_VPATH_GENSTATS_COUNT3(
1566 val64);
1567
1568 val64 = readq(&vp_reg->vpath_genstats_count4);
1569 hw_stats->vpath_genstats_count4 =
1570 (u32)VXGE_HW_VPATH_GENSTATS_COUNT4_GET_PPIF_VPATH_GENSTATS_COUNT4(
1571 val64);
1572
1573 val64 = readq(&vp_reg->vpath_genstats_count5);
1574 hw_stats->vpath_genstats_count5 =
1575 (u32)VXGE_HW_VPATH_GENSTATS_COUNT5_GET_PPIF_VPATH_GENSTATS_COUNT5(
1576 val64);
1577
1578 status = __vxge_hw_vpath_xmac_tx_stats_get(vpath, &hw_stats->tx_stats);
1579 if (status != VXGE_HW_OK)
1580 goto exit;
1581
1582 status = __vxge_hw_vpath_xmac_rx_stats_get(vpath, &hw_stats->rx_stats);
1583 if (status != VXGE_HW_OK)
1584 goto exit;
1585
1586 VXGE_HW_VPATH_STATS_PIO_READ(
1587 VXGE_HW_STATS_VPATH_PROG_EVENT_VNUM0_OFFSET);
1588
1589 hw_stats->prog_event_vnum0 =
1590 (u32)VXGE_HW_STATS_GET_VPATH_PROG_EVENT_VNUM0(val64);
1591
1592 hw_stats->prog_event_vnum1 =
1593 (u32)VXGE_HW_STATS_GET_VPATH_PROG_EVENT_VNUM1(val64);
1594
1595 VXGE_HW_VPATH_STATS_PIO_READ(
1596 VXGE_HW_STATS_VPATH_PROG_EVENT_VNUM2_OFFSET);
1597
1598 hw_stats->prog_event_vnum2 =
1599 (u32)VXGE_HW_STATS_GET_VPATH_PROG_EVENT_VNUM2(val64);
1600
1601 hw_stats->prog_event_vnum3 =
1602 (u32)VXGE_HW_STATS_GET_VPATH_PROG_EVENT_VNUM3(val64);
1603
1604 val64 = readq(&vp_reg->rx_multi_cast_stats);
1605 hw_stats->rx_multi_cast_frame_discard =
1606 (u16)VXGE_HW_RX_MULTI_CAST_STATS_GET_FRAME_DISCARD(val64);
1607
1608 val64 = readq(&vp_reg->rx_frm_transferred);
1609 hw_stats->rx_frm_transferred =
1610 (u32)VXGE_HW_RX_FRM_TRANSFERRED_GET_RX_FRM_TRANSFERRED(val64);
1611
1612 val64 = readq(&vp_reg->rxd_returned);
1613 hw_stats->rxd_returned =
1614 (u16)VXGE_HW_RXD_RETURNED_GET_RXD_RETURNED(val64);
1615
1616 val64 = readq(&vp_reg->dbg_stats_rx_mpa);
1617 hw_stats->rx_mpa_len_fail_frms =
1618 (u16)VXGE_HW_DBG_STATS_GET_RX_MPA_LEN_FAIL_FRMS(val64);
1619 hw_stats->rx_mpa_mrk_fail_frms =
1620 (u16)VXGE_HW_DBG_STATS_GET_RX_MPA_MRK_FAIL_FRMS(val64);
1621 hw_stats->rx_mpa_crc_fail_frms =
1622 (u16)VXGE_HW_DBG_STATS_GET_RX_MPA_CRC_FAIL_FRMS(val64);
1623
1624 val64 = readq(&vp_reg->dbg_stats_rx_fau);
1625 hw_stats->rx_permitted_frms =
1626 (u16)VXGE_HW_DBG_STATS_GET_RX_FAU_RX_PERMITTED_FRMS(val64);
1627 hw_stats->rx_vp_reset_discarded_frms =
1628 (u16)VXGE_HW_DBG_STATS_GET_RX_FAU_RX_VP_RESET_DISCARDED_FRMS(val64);
1629 hw_stats->rx_wol_frms =
1630 (u16)VXGE_HW_DBG_STATS_GET_RX_FAU_RX_WOL_FRMS(val64);
1631
1632 val64 = readq(&vp_reg->tx_vp_reset_discarded_frms);
1633 hw_stats->tx_vp_reset_discarded_frms =
1634 (u16)VXGE_HW_TX_VP_RESET_DISCARDED_FRMS_GET_TX_VP_RESET_DISCARDED_FRMS(
1635 val64);
1636 exit:
1637 return status;
1638 }
1639
1640 /*
1641 * vxge_hw_device_stats_get - Get the device hw statistics.
1642 * Returns the vpath h/w stats for the device.
1643 */
1644 enum vxge_hw_status
vxge_hw_device_stats_get(struct __vxge_hw_device * hldev,struct vxge_hw_device_stats_hw_info * hw_stats)1645 vxge_hw_device_stats_get(struct __vxge_hw_device *hldev,
1646 struct vxge_hw_device_stats_hw_info *hw_stats)
1647 {
1648 u32 i;
1649 enum vxge_hw_status status = VXGE_HW_OK;
1650
1651 for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) {
1652 if (!(hldev->vpaths_deployed & vxge_mBIT(i)) ||
1653 (hldev->virtual_paths[i].vp_open ==
1654 VXGE_HW_VP_NOT_OPEN))
1655 continue;
1656
1657 memcpy(hldev->virtual_paths[i].hw_stats_sav,
1658 hldev->virtual_paths[i].hw_stats,
1659 sizeof(struct vxge_hw_vpath_stats_hw_info));
1660
1661 status = __vxge_hw_vpath_stats_get(
1662 &hldev->virtual_paths[i],
1663 hldev->virtual_paths[i].hw_stats);
1664 }
1665
1666 memcpy(hw_stats, &hldev->stats.hw_dev_info_stats,
1667 sizeof(struct vxge_hw_device_stats_hw_info));
1668
1669 return status;
1670 }
1671
1672 /*
1673 * vxge_hw_driver_stats_get - Get the device sw statistics.
1674 * Returns the vpath s/w stats for the device.
1675 */
vxge_hw_driver_stats_get(struct __vxge_hw_device * hldev,struct vxge_hw_device_stats_sw_info * sw_stats)1676 enum vxge_hw_status vxge_hw_driver_stats_get(
1677 struct __vxge_hw_device *hldev,
1678 struct vxge_hw_device_stats_sw_info *sw_stats)
1679 {
1680 memcpy(sw_stats, &hldev->stats.sw_dev_info_stats,
1681 sizeof(struct vxge_hw_device_stats_sw_info));
1682
1683 return VXGE_HW_OK;
1684 }
1685
1686 /*
1687 * vxge_hw_mrpcim_stats_access - Access the statistics from the given location
1688 * and offset and perform an operation
1689 * Get the statistics from the given location and offset.
1690 */
1691 enum vxge_hw_status
vxge_hw_mrpcim_stats_access(struct __vxge_hw_device * hldev,u32 operation,u32 location,u32 offset,u64 * stat)1692 vxge_hw_mrpcim_stats_access(struct __vxge_hw_device *hldev,
1693 u32 operation, u32 location, u32 offset, u64 *stat)
1694 {
1695 u64 val64;
1696 enum vxge_hw_status status = VXGE_HW_OK;
1697
1698 status = __vxge_hw_device_is_privilaged(hldev->host_type,
1699 hldev->func_id);
1700 if (status != VXGE_HW_OK)
1701 goto exit;
1702
1703 val64 = VXGE_HW_XMAC_STATS_SYS_CMD_OP(operation) |
1704 VXGE_HW_XMAC_STATS_SYS_CMD_STROBE |
1705 VXGE_HW_XMAC_STATS_SYS_CMD_LOC_SEL(location) |
1706 VXGE_HW_XMAC_STATS_SYS_CMD_OFFSET_SEL(offset);
1707
1708 status = __vxge_hw_pio_mem_write64(val64,
1709 &hldev->mrpcim_reg->xmac_stats_sys_cmd,
1710 VXGE_HW_XMAC_STATS_SYS_CMD_STROBE,
1711 hldev->config.device_poll_millis);
1712
1713 if ((status == VXGE_HW_OK) && (operation == VXGE_HW_STATS_OP_READ))
1714 *stat = readq(&hldev->mrpcim_reg->xmac_stats_sys_data);
1715 else
1716 *stat = 0;
1717 exit:
1718 return status;
1719 }
1720
1721 /*
1722 * vxge_hw_device_xmac_aggr_stats_get - Get the Statistics on aggregate port
1723 * Get the Statistics on aggregate port
1724 */
1725 static enum vxge_hw_status
vxge_hw_device_xmac_aggr_stats_get(struct __vxge_hw_device * hldev,u32 port,struct vxge_hw_xmac_aggr_stats * aggr_stats)1726 vxge_hw_device_xmac_aggr_stats_get(struct __vxge_hw_device *hldev, u32 port,
1727 struct vxge_hw_xmac_aggr_stats *aggr_stats)
1728 {
1729 u64 *val64;
1730 int i;
1731 u32 offset = VXGE_HW_STATS_AGGRn_OFFSET;
1732 enum vxge_hw_status status = VXGE_HW_OK;
1733
1734 val64 = (u64 *)aggr_stats;
1735
1736 status = __vxge_hw_device_is_privilaged(hldev->host_type,
1737 hldev->func_id);
1738 if (status != VXGE_HW_OK)
1739 goto exit;
1740
1741 for (i = 0; i < sizeof(struct vxge_hw_xmac_aggr_stats) / 8; i++) {
1742 status = vxge_hw_mrpcim_stats_access(hldev,
1743 VXGE_HW_STATS_OP_READ,
1744 VXGE_HW_STATS_LOC_AGGR,
1745 ((offset + (104 * port)) >> 3), val64);
1746 if (status != VXGE_HW_OK)
1747 goto exit;
1748
1749 offset += 8;
1750 val64++;
1751 }
1752 exit:
1753 return status;
1754 }
1755
1756 /*
1757 * vxge_hw_device_xmac_port_stats_get - Get the Statistics on a port
1758 * Get the Statistics on port
1759 */
1760 static enum vxge_hw_status
vxge_hw_device_xmac_port_stats_get(struct __vxge_hw_device * hldev,u32 port,struct vxge_hw_xmac_port_stats * port_stats)1761 vxge_hw_device_xmac_port_stats_get(struct __vxge_hw_device *hldev, u32 port,
1762 struct vxge_hw_xmac_port_stats *port_stats)
1763 {
1764 u64 *val64;
1765 enum vxge_hw_status status = VXGE_HW_OK;
1766 int i;
1767 u32 offset = 0x0;
1768 val64 = (u64 *) port_stats;
1769
1770 status = __vxge_hw_device_is_privilaged(hldev->host_type,
1771 hldev->func_id);
1772 if (status != VXGE_HW_OK)
1773 goto exit;
1774
1775 for (i = 0; i < sizeof(struct vxge_hw_xmac_port_stats) / 8; i++) {
1776 status = vxge_hw_mrpcim_stats_access(hldev,
1777 VXGE_HW_STATS_OP_READ,
1778 VXGE_HW_STATS_LOC_AGGR,
1779 ((offset + (608 * port)) >> 3), val64);
1780 if (status != VXGE_HW_OK)
1781 goto exit;
1782
1783 offset += 8;
1784 val64++;
1785 }
1786
1787 exit:
1788 return status;
1789 }
1790
1791 /*
1792 * vxge_hw_device_xmac_stats_get - Get the XMAC Statistics
1793 * Get the XMAC Statistics
1794 */
1795 enum vxge_hw_status
vxge_hw_device_xmac_stats_get(struct __vxge_hw_device * hldev,struct vxge_hw_xmac_stats * xmac_stats)1796 vxge_hw_device_xmac_stats_get(struct __vxge_hw_device *hldev,
1797 struct vxge_hw_xmac_stats *xmac_stats)
1798 {
1799 enum vxge_hw_status status = VXGE_HW_OK;
1800 u32 i;
1801
1802 status = vxge_hw_device_xmac_aggr_stats_get(hldev,
1803 0, &xmac_stats->aggr_stats[0]);
1804 if (status != VXGE_HW_OK)
1805 goto exit;
1806
1807 status = vxge_hw_device_xmac_aggr_stats_get(hldev,
1808 1, &xmac_stats->aggr_stats[1]);
1809 if (status != VXGE_HW_OK)
1810 goto exit;
1811
1812 for (i = 0; i <= VXGE_HW_MAC_MAX_MAC_PORT_ID; i++) {
1813
1814 status = vxge_hw_device_xmac_port_stats_get(hldev,
1815 i, &xmac_stats->port_stats[i]);
1816 if (status != VXGE_HW_OK)
1817 goto exit;
1818 }
1819
1820 for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) {
1821
1822 if (!(hldev->vpaths_deployed & vxge_mBIT(i)))
1823 continue;
1824
1825 status = __vxge_hw_vpath_xmac_tx_stats_get(
1826 &hldev->virtual_paths[i],
1827 &xmac_stats->vpath_tx_stats[i]);
1828 if (status != VXGE_HW_OK)
1829 goto exit;
1830
1831 status = __vxge_hw_vpath_xmac_rx_stats_get(
1832 &hldev->virtual_paths[i],
1833 &xmac_stats->vpath_rx_stats[i]);
1834 if (status != VXGE_HW_OK)
1835 goto exit;
1836 }
1837 exit:
1838 return status;
1839 }
1840
1841 /*
1842 * vxge_hw_device_debug_set - Set the debug module, level and timestamp
1843 * This routine is used to dynamically change the debug output
1844 */
vxge_hw_device_debug_set(struct __vxge_hw_device * hldev,enum vxge_debug_level level,u32 mask)1845 void vxge_hw_device_debug_set(struct __vxge_hw_device *hldev,
1846 enum vxge_debug_level level, u32 mask)
1847 {
1848 if (hldev == NULL)
1849 return;
1850
1851 #if defined(VXGE_DEBUG_TRACE_MASK) || \
1852 defined(VXGE_DEBUG_ERR_MASK)
1853 hldev->debug_module_mask = mask;
1854 hldev->debug_level = level;
1855 #endif
1856
1857 #if defined(VXGE_DEBUG_ERR_MASK)
1858 hldev->level_err = level & VXGE_ERR;
1859 #endif
1860
1861 #if defined(VXGE_DEBUG_TRACE_MASK)
1862 hldev->level_trace = level & VXGE_TRACE;
1863 #endif
1864 }
1865
1866 /*
1867 * vxge_hw_device_error_level_get - Get the error level
1868 * This routine returns the current error level set
1869 */
vxge_hw_device_error_level_get(struct __vxge_hw_device * hldev)1870 u32 vxge_hw_device_error_level_get(struct __vxge_hw_device *hldev)
1871 {
1872 #if defined(VXGE_DEBUG_ERR_MASK)
1873 if (hldev == NULL)
1874 return VXGE_ERR;
1875 else
1876 return hldev->level_err;
1877 #else
1878 return 0;
1879 #endif
1880 }
1881
1882 /*
1883 * vxge_hw_device_trace_level_get - Get the trace level
1884 * This routine returns the current trace level set
1885 */
vxge_hw_device_trace_level_get(struct __vxge_hw_device * hldev)1886 u32 vxge_hw_device_trace_level_get(struct __vxge_hw_device *hldev)
1887 {
1888 #if defined(VXGE_DEBUG_TRACE_MASK)
1889 if (hldev == NULL)
1890 return VXGE_TRACE;
1891 else
1892 return hldev->level_trace;
1893 #else
1894 return 0;
1895 #endif
1896 }
1897
1898 /*
1899 * vxge_hw_getpause_data -Pause frame frame generation and reception.
1900 * Returns the Pause frame generation and reception capability of the NIC.
1901 */
vxge_hw_device_getpause_data(struct __vxge_hw_device * hldev,u32 port,u32 * tx,u32 * rx)1902 enum vxge_hw_status vxge_hw_device_getpause_data(struct __vxge_hw_device *hldev,
1903 u32 port, u32 *tx, u32 *rx)
1904 {
1905 u64 val64;
1906 enum vxge_hw_status status = VXGE_HW_OK;
1907
1908 if ((hldev == NULL) || (hldev->magic != VXGE_HW_DEVICE_MAGIC)) {
1909 status = VXGE_HW_ERR_INVALID_DEVICE;
1910 goto exit;
1911 }
1912
1913 if (port > VXGE_HW_MAC_MAX_MAC_PORT_ID) {
1914 status = VXGE_HW_ERR_INVALID_PORT;
1915 goto exit;
1916 }
1917
1918 if (!(hldev->access_rights & VXGE_HW_DEVICE_ACCESS_RIGHT_MRPCIM)) {
1919 status = VXGE_HW_ERR_PRIVILEGED_OPERATION;
1920 goto exit;
1921 }
1922
1923 val64 = readq(&hldev->mrpcim_reg->rxmac_pause_cfg_port[port]);
1924 if (val64 & VXGE_HW_RXMAC_PAUSE_CFG_PORT_GEN_EN)
1925 *tx = 1;
1926 if (val64 & VXGE_HW_RXMAC_PAUSE_CFG_PORT_RCV_EN)
1927 *rx = 1;
1928 exit:
1929 return status;
1930 }
1931
1932 /*
1933 * vxge_hw_device_setpause_data - set/reset pause frame generation.
1934 * It can be used to set or reset Pause frame generation or reception
1935 * support of the NIC.
1936 */
vxge_hw_device_setpause_data(struct __vxge_hw_device * hldev,u32 port,u32 tx,u32 rx)1937 enum vxge_hw_status vxge_hw_device_setpause_data(struct __vxge_hw_device *hldev,
1938 u32 port, u32 tx, u32 rx)
1939 {
1940 u64 val64;
1941 enum vxge_hw_status status = VXGE_HW_OK;
1942
1943 if ((hldev == NULL) || (hldev->magic != VXGE_HW_DEVICE_MAGIC)) {
1944 status = VXGE_HW_ERR_INVALID_DEVICE;
1945 goto exit;
1946 }
1947
1948 if (port > VXGE_HW_MAC_MAX_MAC_PORT_ID) {
1949 status = VXGE_HW_ERR_INVALID_PORT;
1950 goto exit;
1951 }
1952
1953 status = __vxge_hw_device_is_privilaged(hldev->host_type,
1954 hldev->func_id);
1955 if (status != VXGE_HW_OK)
1956 goto exit;
1957
1958 val64 = readq(&hldev->mrpcim_reg->rxmac_pause_cfg_port[port]);
1959 if (tx)
1960 val64 |= VXGE_HW_RXMAC_PAUSE_CFG_PORT_GEN_EN;
1961 else
1962 val64 &= ~VXGE_HW_RXMAC_PAUSE_CFG_PORT_GEN_EN;
1963 if (rx)
1964 val64 |= VXGE_HW_RXMAC_PAUSE_CFG_PORT_RCV_EN;
1965 else
1966 val64 &= ~VXGE_HW_RXMAC_PAUSE_CFG_PORT_RCV_EN;
1967
1968 writeq(val64, &hldev->mrpcim_reg->rxmac_pause_cfg_port[port]);
1969 exit:
1970 return status;
1971 }
1972
vxge_hw_device_link_width_get(struct __vxge_hw_device * hldev)1973 u16 vxge_hw_device_link_width_get(struct __vxge_hw_device *hldev)
1974 {
1975 struct pci_dev *dev = hldev->pdev;
1976 u16 lnk;
1977
1978 pcie_capability_read_word(dev, PCI_EXP_LNKSTA, &lnk);
1979 return (lnk & VXGE_HW_PCI_EXP_LNKCAP_LNK_WIDTH) >> 4;
1980 }
1981
1982 /*
1983 * __vxge_hw_ring_block_memblock_idx - Return the memblock index
1984 * This function returns the index of memory block
1985 */
1986 static inline u32
__vxge_hw_ring_block_memblock_idx(u8 * block)1987 __vxge_hw_ring_block_memblock_idx(u8 *block)
1988 {
1989 return (u32)*((u64 *)(block + VXGE_HW_RING_MEMBLOCK_IDX_OFFSET));
1990 }
1991
1992 /*
1993 * __vxge_hw_ring_block_memblock_idx_set - Sets the memblock index
1994 * This function sets index to a memory block
1995 */
1996 static inline void
__vxge_hw_ring_block_memblock_idx_set(u8 * block,u32 memblock_idx)1997 __vxge_hw_ring_block_memblock_idx_set(u8 *block, u32 memblock_idx)
1998 {
1999 *((u64 *)(block + VXGE_HW_RING_MEMBLOCK_IDX_OFFSET)) = memblock_idx;
2000 }
2001
2002 /*
2003 * __vxge_hw_ring_block_next_pointer_set - Sets the next block pointer
2004 * in RxD block
2005 * Sets the next block pointer in RxD block
2006 */
2007 static inline void
__vxge_hw_ring_block_next_pointer_set(u8 * block,dma_addr_t dma_next)2008 __vxge_hw_ring_block_next_pointer_set(u8 *block, dma_addr_t dma_next)
2009 {
2010 *((u64 *)(block + VXGE_HW_RING_NEXT_BLOCK_POINTER_OFFSET)) = dma_next;
2011 }
2012
2013 /*
2014 * __vxge_hw_ring_first_block_address_get - Returns the dma address of the
2015 * first block
2016 * Returns the dma address of the first RxD block
2017 */
__vxge_hw_ring_first_block_address_get(struct __vxge_hw_ring * ring)2018 static u64 __vxge_hw_ring_first_block_address_get(struct __vxge_hw_ring *ring)
2019 {
2020 struct vxge_hw_mempool_dma *dma_object;
2021
2022 dma_object = ring->mempool->memblocks_dma_arr;
2023 vxge_assert(dma_object != NULL);
2024
2025 return dma_object->addr;
2026 }
2027
2028 /*
2029 * __vxge_hw_ring_item_dma_addr - Return the dma address of an item
2030 * This function returns the dma address of a given item
2031 */
__vxge_hw_ring_item_dma_addr(struct vxge_hw_mempool * mempoolh,void * item)2032 static dma_addr_t __vxge_hw_ring_item_dma_addr(struct vxge_hw_mempool *mempoolh,
2033 void *item)
2034 {
2035 u32 memblock_idx;
2036 void *memblock;
2037 struct vxge_hw_mempool_dma *memblock_dma_object;
2038 ptrdiff_t dma_item_offset;
2039
2040 /* get owner memblock index */
2041 memblock_idx = __vxge_hw_ring_block_memblock_idx(item);
2042
2043 /* get owner memblock by memblock index */
2044 memblock = mempoolh->memblocks_arr[memblock_idx];
2045
2046 /* get memblock DMA object by memblock index */
2047 memblock_dma_object = mempoolh->memblocks_dma_arr + memblock_idx;
2048
2049 /* calculate offset in the memblock of this item */
2050 dma_item_offset = (u8 *)item - (u8 *)memblock;
2051
2052 return memblock_dma_object->addr + dma_item_offset;
2053 }
2054
2055 /*
2056 * __vxge_hw_ring_rxdblock_link - Link the RxD blocks
2057 * This function returns the dma address of a given item
2058 */
__vxge_hw_ring_rxdblock_link(struct vxge_hw_mempool * mempoolh,struct __vxge_hw_ring * ring,u32 from,u32 to)2059 static void __vxge_hw_ring_rxdblock_link(struct vxge_hw_mempool *mempoolh,
2060 struct __vxge_hw_ring *ring, u32 from,
2061 u32 to)
2062 {
2063 u8 *to_item , *from_item;
2064 dma_addr_t to_dma;
2065
2066 /* get "from" RxD block */
2067 from_item = mempoolh->items_arr[from];
2068 vxge_assert(from_item);
2069
2070 /* get "to" RxD block */
2071 to_item = mempoolh->items_arr[to];
2072 vxge_assert(to_item);
2073
2074 /* return address of the beginning of previous RxD block */
2075 to_dma = __vxge_hw_ring_item_dma_addr(mempoolh, to_item);
2076
2077 /* set next pointer for this RxD block to point on
2078 * previous item's DMA start address */
2079 __vxge_hw_ring_block_next_pointer_set(from_item, to_dma);
2080 }
2081
2082 /*
2083 * __vxge_hw_ring_mempool_item_alloc - Allocate List blocks for RxD
2084 * block callback
2085 * This function is callback passed to __vxge_hw_mempool_create to create memory
2086 * pool for RxD block
2087 */
2088 static void
__vxge_hw_ring_mempool_item_alloc(struct vxge_hw_mempool * mempoolh,u32 memblock_index,struct vxge_hw_mempool_dma * dma_object,u32 index,u32 is_last)2089 __vxge_hw_ring_mempool_item_alloc(struct vxge_hw_mempool *mempoolh,
2090 u32 memblock_index,
2091 struct vxge_hw_mempool_dma *dma_object,
2092 u32 index, u32 is_last)
2093 {
2094 u32 i;
2095 void *item = mempoolh->items_arr[index];
2096 struct __vxge_hw_ring *ring =
2097 (struct __vxge_hw_ring *)mempoolh->userdata;
2098
2099 /* format rxds array */
2100 for (i = 0; i < ring->rxds_per_block; i++) {
2101 void *rxdblock_priv;
2102 void *uld_priv;
2103 struct vxge_hw_ring_rxd_1 *rxdp;
2104
2105 u32 reserve_index = ring->channel.reserve_ptr -
2106 (index * ring->rxds_per_block + i + 1);
2107 u32 memblock_item_idx;
2108
2109 ring->channel.reserve_arr[reserve_index] = ((u8 *)item) +
2110 i * ring->rxd_size;
2111
2112 /* Note: memblock_item_idx is index of the item within
2113 * the memblock. For instance, in case of three RxD-blocks
2114 * per memblock this value can be 0, 1 or 2. */
2115 rxdblock_priv = __vxge_hw_mempool_item_priv(mempoolh,
2116 memblock_index, item,
2117 &memblock_item_idx);
2118
2119 rxdp = ring->channel.reserve_arr[reserve_index];
2120
2121 uld_priv = ((u8 *)rxdblock_priv + ring->rxd_priv_size * i);
2122
2123 /* pre-format Host_Control */
2124 rxdp->host_control = (u64)(size_t)uld_priv;
2125 }
2126
2127 __vxge_hw_ring_block_memblock_idx_set(item, memblock_index);
2128
2129 if (is_last) {
2130 /* link last one with first one */
2131 __vxge_hw_ring_rxdblock_link(mempoolh, ring, index, 0);
2132 }
2133
2134 if (index > 0) {
2135 /* link this RxD block with previous one */
2136 __vxge_hw_ring_rxdblock_link(mempoolh, ring, index - 1, index);
2137 }
2138 }
2139
2140 /*
2141 * __vxge_hw_ring_replenish - Initial replenish of RxDs
2142 * This function replenishes the RxDs from reserve array to work array
2143 */
2144 static enum vxge_hw_status
vxge_hw_ring_replenish(struct __vxge_hw_ring * ring)2145 vxge_hw_ring_replenish(struct __vxge_hw_ring *ring)
2146 {
2147 void *rxd;
2148 struct __vxge_hw_channel *channel;
2149 enum vxge_hw_status status = VXGE_HW_OK;
2150
2151 channel = &ring->channel;
2152
2153 while (vxge_hw_channel_dtr_count(channel) > 0) {
2154
2155 status = vxge_hw_ring_rxd_reserve(ring, &rxd);
2156
2157 vxge_assert(status == VXGE_HW_OK);
2158
2159 if (ring->rxd_init) {
2160 status = ring->rxd_init(rxd, channel->userdata);
2161 if (status != VXGE_HW_OK) {
2162 vxge_hw_ring_rxd_free(ring, rxd);
2163 goto exit;
2164 }
2165 }
2166
2167 vxge_hw_ring_rxd_post(ring, rxd);
2168 }
2169 status = VXGE_HW_OK;
2170 exit:
2171 return status;
2172 }
2173
2174 /*
2175 * __vxge_hw_channel_allocate - Allocate memory for channel
2176 * This function allocates required memory for the channel and various arrays
2177 * in the channel
2178 */
2179 static struct __vxge_hw_channel *
__vxge_hw_channel_allocate(struct __vxge_hw_vpath_handle * vph,enum __vxge_hw_channel_type type,u32 length,u32 per_dtr_space,void * userdata)2180 __vxge_hw_channel_allocate(struct __vxge_hw_vpath_handle *vph,
2181 enum __vxge_hw_channel_type type,
2182 u32 length, u32 per_dtr_space,
2183 void *userdata)
2184 {
2185 struct __vxge_hw_channel *channel;
2186 struct __vxge_hw_device *hldev;
2187 int size = 0;
2188 u32 vp_id;
2189
2190 hldev = vph->vpath->hldev;
2191 vp_id = vph->vpath->vp_id;
2192
2193 switch (type) {
2194 case VXGE_HW_CHANNEL_TYPE_FIFO:
2195 size = sizeof(struct __vxge_hw_fifo);
2196 break;
2197 case VXGE_HW_CHANNEL_TYPE_RING:
2198 size = sizeof(struct __vxge_hw_ring);
2199 break;
2200 default:
2201 break;
2202 }
2203
2204 channel = kzalloc(size, GFP_KERNEL);
2205 if (channel == NULL)
2206 goto exit0;
2207 INIT_LIST_HEAD(&channel->item);
2208
2209 channel->common_reg = hldev->common_reg;
2210 channel->first_vp_id = hldev->first_vp_id;
2211 channel->type = type;
2212 channel->devh = hldev;
2213 channel->vph = vph;
2214 channel->userdata = userdata;
2215 channel->per_dtr_space = per_dtr_space;
2216 channel->length = length;
2217 channel->vp_id = vp_id;
2218
2219 channel->work_arr = kcalloc(length, sizeof(void *), GFP_KERNEL);
2220 if (channel->work_arr == NULL)
2221 goto exit1;
2222
2223 channel->free_arr = kcalloc(length, sizeof(void *), GFP_KERNEL);
2224 if (channel->free_arr == NULL)
2225 goto exit1;
2226 channel->free_ptr = length;
2227
2228 channel->reserve_arr = kcalloc(length, sizeof(void *), GFP_KERNEL);
2229 if (channel->reserve_arr == NULL)
2230 goto exit1;
2231 channel->reserve_ptr = length;
2232 channel->reserve_top = 0;
2233
2234 channel->orig_arr = kcalloc(length, sizeof(void *), GFP_KERNEL);
2235 if (channel->orig_arr == NULL)
2236 goto exit1;
2237
2238 return channel;
2239 exit1:
2240 __vxge_hw_channel_free(channel);
2241
2242 exit0:
2243 return NULL;
2244 }
2245
2246 /*
2247 * vxge_hw_blockpool_block_add - callback for vxge_os_dma_malloc_async
2248 * Adds a block to block pool
2249 */
vxge_hw_blockpool_block_add(struct __vxge_hw_device * devh,void * block_addr,u32 length,struct pci_dev * dma_h,struct pci_dev * acc_handle)2250 static void vxge_hw_blockpool_block_add(struct __vxge_hw_device *devh,
2251 void *block_addr,
2252 u32 length,
2253 struct pci_dev *dma_h,
2254 struct pci_dev *acc_handle)
2255 {
2256 struct __vxge_hw_blockpool *blockpool;
2257 struct __vxge_hw_blockpool_entry *entry = NULL;
2258 dma_addr_t dma_addr;
2259
2260 blockpool = &devh->block_pool;
2261
2262 if (block_addr == NULL) {
2263 blockpool->req_out--;
2264 goto exit;
2265 }
2266
2267 dma_addr = pci_map_single(devh->pdev, block_addr, length,
2268 PCI_DMA_BIDIRECTIONAL);
2269
2270 if (unlikely(pci_dma_mapping_error(devh->pdev, dma_addr))) {
2271 vxge_os_dma_free(devh->pdev, block_addr, &acc_handle);
2272 blockpool->req_out--;
2273 goto exit;
2274 }
2275
2276 if (!list_empty(&blockpool->free_entry_list))
2277 entry = (struct __vxge_hw_blockpool_entry *)
2278 list_first_entry(&blockpool->free_entry_list,
2279 struct __vxge_hw_blockpool_entry,
2280 item);
2281
2282 if (entry == NULL)
2283 entry = vmalloc(sizeof(struct __vxge_hw_blockpool_entry));
2284 else
2285 list_del(&entry->item);
2286
2287 if (entry) {
2288 entry->length = length;
2289 entry->memblock = block_addr;
2290 entry->dma_addr = dma_addr;
2291 entry->acc_handle = acc_handle;
2292 entry->dma_handle = dma_h;
2293 list_add(&entry->item, &blockpool->free_block_list);
2294 blockpool->pool_size++;
2295 }
2296
2297 blockpool->req_out--;
2298
2299 exit:
2300 return;
2301 }
2302
2303 static inline void
vxge_os_dma_malloc_async(struct pci_dev * pdev,void * devh,unsigned long size)2304 vxge_os_dma_malloc_async(struct pci_dev *pdev, void *devh, unsigned long size)
2305 {
2306 gfp_t flags;
2307 void *vaddr;
2308
2309 if (in_interrupt())
2310 flags = GFP_ATOMIC | GFP_DMA;
2311 else
2312 flags = GFP_KERNEL | GFP_DMA;
2313
2314 vaddr = kmalloc((size), flags);
2315
2316 vxge_hw_blockpool_block_add(devh, vaddr, size, pdev, pdev);
2317 }
2318
2319 /*
2320 * __vxge_hw_blockpool_blocks_add - Request additional blocks
2321 */
2322 static
__vxge_hw_blockpool_blocks_add(struct __vxge_hw_blockpool * blockpool)2323 void __vxge_hw_blockpool_blocks_add(struct __vxge_hw_blockpool *blockpool)
2324 {
2325 u32 nreq = 0, i;
2326
2327 if ((blockpool->pool_size + blockpool->req_out) <
2328 VXGE_HW_MIN_DMA_BLOCK_POOL_SIZE) {
2329 nreq = VXGE_HW_INCR_DMA_BLOCK_POOL_SIZE;
2330 blockpool->req_out += nreq;
2331 }
2332
2333 for (i = 0; i < nreq; i++)
2334 vxge_os_dma_malloc_async(
2335 (blockpool->hldev)->pdev,
2336 blockpool->hldev, VXGE_HW_BLOCK_SIZE);
2337 }
2338
2339 /*
2340 * __vxge_hw_blockpool_malloc - Allocate a memory block from pool
2341 * Allocates a block of memory of given size, either from block pool
2342 * or by calling vxge_os_dma_malloc()
2343 */
__vxge_hw_blockpool_malloc(struct __vxge_hw_device * devh,u32 size,struct vxge_hw_mempool_dma * dma_object)2344 static void *__vxge_hw_blockpool_malloc(struct __vxge_hw_device *devh, u32 size,
2345 struct vxge_hw_mempool_dma *dma_object)
2346 {
2347 struct __vxge_hw_blockpool_entry *entry = NULL;
2348 struct __vxge_hw_blockpool *blockpool;
2349 void *memblock = NULL;
2350
2351 blockpool = &devh->block_pool;
2352
2353 if (size != blockpool->block_size) {
2354
2355 memblock = vxge_os_dma_malloc(devh->pdev, size,
2356 &dma_object->handle,
2357 &dma_object->acc_handle);
2358
2359 if (!memblock)
2360 goto exit;
2361
2362 dma_object->addr = pci_map_single(devh->pdev, memblock, size,
2363 PCI_DMA_BIDIRECTIONAL);
2364
2365 if (unlikely(pci_dma_mapping_error(devh->pdev,
2366 dma_object->addr))) {
2367 vxge_os_dma_free(devh->pdev, memblock,
2368 &dma_object->acc_handle);
2369 memblock = NULL;
2370 goto exit;
2371 }
2372
2373 } else {
2374
2375 if (!list_empty(&blockpool->free_block_list))
2376 entry = (struct __vxge_hw_blockpool_entry *)
2377 list_first_entry(&blockpool->free_block_list,
2378 struct __vxge_hw_blockpool_entry,
2379 item);
2380
2381 if (entry != NULL) {
2382 list_del(&entry->item);
2383 dma_object->addr = entry->dma_addr;
2384 dma_object->handle = entry->dma_handle;
2385 dma_object->acc_handle = entry->acc_handle;
2386 memblock = entry->memblock;
2387
2388 list_add(&entry->item,
2389 &blockpool->free_entry_list);
2390 blockpool->pool_size--;
2391 }
2392
2393 if (memblock != NULL)
2394 __vxge_hw_blockpool_blocks_add(blockpool);
2395 }
2396 exit:
2397 return memblock;
2398 }
2399
2400 /*
2401 * __vxge_hw_blockpool_blocks_remove - Free additional blocks
2402 */
2403 static void
__vxge_hw_blockpool_blocks_remove(struct __vxge_hw_blockpool * blockpool)2404 __vxge_hw_blockpool_blocks_remove(struct __vxge_hw_blockpool *blockpool)
2405 {
2406 struct list_head *p, *n;
2407
2408 list_for_each_safe(p, n, &blockpool->free_block_list) {
2409
2410 if (blockpool->pool_size < blockpool->pool_max)
2411 break;
2412
2413 pci_unmap_single(
2414 (blockpool->hldev)->pdev,
2415 ((struct __vxge_hw_blockpool_entry *)p)->dma_addr,
2416 ((struct __vxge_hw_blockpool_entry *)p)->length,
2417 PCI_DMA_BIDIRECTIONAL);
2418
2419 vxge_os_dma_free(
2420 (blockpool->hldev)->pdev,
2421 ((struct __vxge_hw_blockpool_entry *)p)->memblock,
2422 &((struct __vxge_hw_blockpool_entry *)p)->acc_handle);
2423
2424 list_del(&((struct __vxge_hw_blockpool_entry *)p)->item);
2425
2426 list_add(p, &blockpool->free_entry_list);
2427
2428 blockpool->pool_size--;
2429
2430 }
2431 }
2432
2433 /*
2434 * __vxge_hw_blockpool_free - Frees the memory allcoated with
2435 * __vxge_hw_blockpool_malloc
2436 */
__vxge_hw_blockpool_free(struct __vxge_hw_device * devh,void * memblock,u32 size,struct vxge_hw_mempool_dma * dma_object)2437 static void __vxge_hw_blockpool_free(struct __vxge_hw_device *devh,
2438 void *memblock, u32 size,
2439 struct vxge_hw_mempool_dma *dma_object)
2440 {
2441 struct __vxge_hw_blockpool_entry *entry = NULL;
2442 struct __vxge_hw_blockpool *blockpool;
2443 enum vxge_hw_status status = VXGE_HW_OK;
2444
2445 blockpool = &devh->block_pool;
2446
2447 if (size != blockpool->block_size) {
2448 pci_unmap_single(devh->pdev, dma_object->addr, size,
2449 PCI_DMA_BIDIRECTIONAL);
2450 vxge_os_dma_free(devh->pdev, memblock, &dma_object->acc_handle);
2451 } else {
2452
2453 if (!list_empty(&blockpool->free_entry_list))
2454 entry = (struct __vxge_hw_blockpool_entry *)
2455 list_first_entry(&blockpool->free_entry_list,
2456 struct __vxge_hw_blockpool_entry,
2457 item);
2458
2459 if (entry == NULL)
2460 entry = vmalloc(sizeof(
2461 struct __vxge_hw_blockpool_entry));
2462 else
2463 list_del(&entry->item);
2464
2465 if (entry != NULL) {
2466 entry->length = size;
2467 entry->memblock = memblock;
2468 entry->dma_addr = dma_object->addr;
2469 entry->acc_handle = dma_object->acc_handle;
2470 entry->dma_handle = dma_object->handle;
2471 list_add(&entry->item,
2472 &blockpool->free_block_list);
2473 blockpool->pool_size++;
2474 status = VXGE_HW_OK;
2475 } else
2476 status = VXGE_HW_ERR_OUT_OF_MEMORY;
2477
2478 if (status == VXGE_HW_OK)
2479 __vxge_hw_blockpool_blocks_remove(blockpool);
2480 }
2481 }
2482
2483 /*
2484 * vxge_hw_mempool_destroy
2485 */
__vxge_hw_mempool_destroy(struct vxge_hw_mempool * mempool)2486 static void __vxge_hw_mempool_destroy(struct vxge_hw_mempool *mempool)
2487 {
2488 u32 i, j;
2489 struct __vxge_hw_device *devh = mempool->devh;
2490
2491 for (i = 0; i < mempool->memblocks_allocated; i++) {
2492 struct vxge_hw_mempool_dma *dma_object;
2493
2494 vxge_assert(mempool->memblocks_arr[i]);
2495 vxge_assert(mempool->memblocks_dma_arr + i);
2496
2497 dma_object = mempool->memblocks_dma_arr + i;
2498
2499 for (j = 0; j < mempool->items_per_memblock; j++) {
2500 u32 index = i * mempool->items_per_memblock + j;
2501
2502 /* to skip last partially filled(if any) memblock */
2503 if (index >= mempool->items_current)
2504 break;
2505 }
2506
2507 vfree(mempool->memblocks_priv_arr[i]);
2508
2509 __vxge_hw_blockpool_free(devh, mempool->memblocks_arr[i],
2510 mempool->memblock_size, dma_object);
2511 }
2512
2513 vfree(mempool->items_arr);
2514 vfree(mempool->memblocks_dma_arr);
2515 vfree(mempool->memblocks_priv_arr);
2516 vfree(mempool->memblocks_arr);
2517 vfree(mempool);
2518 }
2519
2520 /*
2521 * __vxge_hw_mempool_grow
2522 * Will resize mempool up to %num_allocate value.
2523 */
2524 static enum vxge_hw_status
__vxge_hw_mempool_grow(struct vxge_hw_mempool * mempool,u32 num_allocate,u32 * num_allocated)2525 __vxge_hw_mempool_grow(struct vxge_hw_mempool *mempool, u32 num_allocate,
2526 u32 *num_allocated)
2527 {
2528 u32 i, first_time = mempool->memblocks_allocated == 0 ? 1 : 0;
2529 u32 n_items = mempool->items_per_memblock;
2530 u32 start_block_idx = mempool->memblocks_allocated;
2531 u32 end_block_idx = mempool->memblocks_allocated + num_allocate;
2532 enum vxge_hw_status status = VXGE_HW_OK;
2533
2534 *num_allocated = 0;
2535
2536 if (end_block_idx > mempool->memblocks_max) {
2537 status = VXGE_HW_ERR_OUT_OF_MEMORY;
2538 goto exit;
2539 }
2540
2541 for (i = start_block_idx; i < end_block_idx; i++) {
2542 u32 j;
2543 u32 is_last = ((end_block_idx - 1) == i);
2544 struct vxge_hw_mempool_dma *dma_object =
2545 mempool->memblocks_dma_arr + i;
2546 void *the_memblock;
2547
2548 /* allocate memblock's private part. Each DMA memblock
2549 * has a space allocated for item's private usage upon
2550 * mempool's user request. Each time mempool grows, it will
2551 * allocate new memblock and its private part at once.
2552 * This helps to minimize memory usage a lot. */
2553 mempool->memblocks_priv_arr[i] =
2554 vzalloc(array_size(mempool->items_priv_size, n_items));
2555 if (mempool->memblocks_priv_arr[i] == NULL) {
2556 status = VXGE_HW_ERR_OUT_OF_MEMORY;
2557 goto exit;
2558 }
2559
2560 /* allocate DMA-capable memblock */
2561 mempool->memblocks_arr[i] =
2562 __vxge_hw_blockpool_malloc(mempool->devh,
2563 mempool->memblock_size, dma_object);
2564 if (mempool->memblocks_arr[i] == NULL) {
2565 vfree(mempool->memblocks_priv_arr[i]);
2566 status = VXGE_HW_ERR_OUT_OF_MEMORY;
2567 goto exit;
2568 }
2569
2570 (*num_allocated)++;
2571 mempool->memblocks_allocated++;
2572
2573 memset(mempool->memblocks_arr[i], 0, mempool->memblock_size);
2574
2575 the_memblock = mempool->memblocks_arr[i];
2576
2577 /* fill the items hash array */
2578 for (j = 0; j < n_items; j++) {
2579 u32 index = i * n_items + j;
2580
2581 if (first_time && index >= mempool->items_initial)
2582 break;
2583
2584 mempool->items_arr[index] =
2585 ((char *)the_memblock + j*mempool->item_size);
2586
2587 /* let caller to do more job on each item */
2588 if (mempool->item_func_alloc != NULL)
2589 mempool->item_func_alloc(mempool, i,
2590 dma_object, index, is_last);
2591
2592 mempool->items_current = index + 1;
2593 }
2594
2595 if (first_time && mempool->items_current ==
2596 mempool->items_initial)
2597 break;
2598 }
2599 exit:
2600 return status;
2601 }
2602
2603 /*
2604 * vxge_hw_mempool_create
2605 * This function will create memory pool object. Pool may grow but will
2606 * never shrink. Pool consists of number of dynamically allocated blocks
2607 * with size enough to hold %items_initial number of items. Memory is
2608 * DMA-able but client must map/unmap before interoperating with the device.
2609 */
2610 static struct vxge_hw_mempool *
__vxge_hw_mempool_create(struct __vxge_hw_device * devh,u32 memblock_size,u32 item_size,u32 items_priv_size,u32 items_initial,u32 items_max,const struct vxge_hw_mempool_cbs * mp_callback,void * userdata)2611 __vxge_hw_mempool_create(struct __vxge_hw_device *devh,
2612 u32 memblock_size,
2613 u32 item_size,
2614 u32 items_priv_size,
2615 u32 items_initial,
2616 u32 items_max,
2617 const struct vxge_hw_mempool_cbs *mp_callback,
2618 void *userdata)
2619 {
2620 enum vxge_hw_status status = VXGE_HW_OK;
2621 u32 memblocks_to_allocate;
2622 struct vxge_hw_mempool *mempool = NULL;
2623 u32 allocated;
2624
2625 if (memblock_size < item_size) {
2626 status = VXGE_HW_FAIL;
2627 goto exit;
2628 }
2629
2630 mempool = vzalloc(sizeof(struct vxge_hw_mempool));
2631 if (mempool == NULL) {
2632 status = VXGE_HW_ERR_OUT_OF_MEMORY;
2633 goto exit;
2634 }
2635
2636 mempool->devh = devh;
2637 mempool->memblock_size = memblock_size;
2638 mempool->items_max = items_max;
2639 mempool->items_initial = items_initial;
2640 mempool->item_size = item_size;
2641 mempool->items_priv_size = items_priv_size;
2642 mempool->item_func_alloc = mp_callback->item_func_alloc;
2643 mempool->userdata = userdata;
2644
2645 mempool->memblocks_allocated = 0;
2646
2647 mempool->items_per_memblock = memblock_size / item_size;
2648
2649 mempool->memblocks_max = (items_max + mempool->items_per_memblock - 1) /
2650 mempool->items_per_memblock;
2651
2652 /* allocate array of memblocks */
2653 mempool->memblocks_arr =
2654 vzalloc(array_size(sizeof(void *), mempool->memblocks_max));
2655 if (mempool->memblocks_arr == NULL) {
2656 __vxge_hw_mempool_destroy(mempool);
2657 status = VXGE_HW_ERR_OUT_OF_MEMORY;
2658 mempool = NULL;
2659 goto exit;
2660 }
2661
2662 /* allocate array of private parts of items per memblocks */
2663 mempool->memblocks_priv_arr =
2664 vzalloc(array_size(sizeof(void *), mempool->memblocks_max));
2665 if (mempool->memblocks_priv_arr == NULL) {
2666 __vxge_hw_mempool_destroy(mempool);
2667 status = VXGE_HW_ERR_OUT_OF_MEMORY;
2668 mempool = NULL;
2669 goto exit;
2670 }
2671
2672 /* allocate array of memblocks DMA objects */
2673 mempool->memblocks_dma_arr =
2674 vzalloc(array_size(sizeof(struct vxge_hw_mempool_dma),
2675 mempool->memblocks_max));
2676 if (mempool->memblocks_dma_arr == NULL) {
2677 __vxge_hw_mempool_destroy(mempool);
2678 status = VXGE_HW_ERR_OUT_OF_MEMORY;
2679 mempool = NULL;
2680 goto exit;
2681 }
2682
2683 /* allocate hash array of items */
2684 mempool->items_arr = vzalloc(array_size(sizeof(void *),
2685 mempool->items_max));
2686 if (mempool->items_arr == NULL) {
2687 __vxge_hw_mempool_destroy(mempool);
2688 status = VXGE_HW_ERR_OUT_OF_MEMORY;
2689 mempool = NULL;
2690 goto exit;
2691 }
2692
2693 /* calculate initial number of memblocks */
2694 memblocks_to_allocate = (mempool->items_initial +
2695 mempool->items_per_memblock - 1) /
2696 mempool->items_per_memblock;
2697
2698 /* pre-allocate the mempool */
2699 status = __vxge_hw_mempool_grow(mempool, memblocks_to_allocate,
2700 &allocated);
2701 if (status != VXGE_HW_OK) {
2702 __vxge_hw_mempool_destroy(mempool);
2703 status = VXGE_HW_ERR_OUT_OF_MEMORY;
2704 mempool = NULL;
2705 goto exit;
2706 }
2707
2708 exit:
2709 return mempool;
2710 }
2711
2712 /*
2713 * __vxge_hw_ring_abort - Returns the RxD
2714 * This function terminates the RxDs of ring
2715 */
__vxge_hw_ring_abort(struct __vxge_hw_ring * ring)2716 static enum vxge_hw_status __vxge_hw_ring_abort(struct __vxge_hw_ring *ring)
2717 {
2718 void *rxdh;
2719 struct __vxge_hw_channel *channel;
2720
2721 channel = &ring->channel;
2722
2723 for (;;) {
2724 vxge_hw_channel_dtr_try_complete(channel, &rxdh);
2725
2726 if (rxdh == NULL)
2727 break;
2728
2729 vxge_hw_channel_dtr_complete(channel);
2730
2731 if (ring->rxd_term)
2732 ring->rxd_term(rxdh, VXGE_HW_RXD_STATE_POSTED,
2733 channel->userdata);
2734
2735 vxge_hw_channel_dtr_free(channel, rxdh);
2736 }
2737
2738 return VXGE_HW_OK;
2739 }
2740
2741 /*
2742 * __vxge_hw_ring_reset - Resets the ring
2743 * This function resets the ring during vpath reset operation
2744 */
__vxge_hw_ring_reset(struct __vxge_hw_ring * ring)2745 static enum vxge_hw_status __vxge_hw_ring_reset(struct __vxge_hw_ring *ring)
2746 {
2747 enum vxge_hw_status status = VXGE_HW_OK;
2748 struct __vxge_hw_channel *channel;
2749
2750 channel = &ring->channel;
2751
2752 __vxge_hw_ring_abort(ring);
2753
2754 status = __vxge_hw_channel_reset(channel);
2755
2756 if (status != VXGE_HW_OK)
2757 goto exit;
2758
2759 if (ring->rxd_init) {
2760 status = vxge_hw_ring_replenish(ring);
2761 if (status != VXGE_HW_OK)
2762 goto exit;
2763 }
2764 exit:
2765 return status;
2766 }
2767
2768 /*
2769 * __vxge_hw_ring_delete - Removes the ring
2770 * This function freeup the memory pool and removes the ring
2771 */
2772 static enum vxge_hw_status
__vxge_hw_ring_delete(struct __vxge_hw_vpath_handle * vp)2773 __vxge_hw_ring_delete(struct __vxge_hw_vpath_handle *vp)
2774 {
2775 struct __vxge_hw_ring *ring = vp->vpath->ringh;
2776
2777 __vxge_hw_ring_abort(ring);
2778
2779 if (ring->mempool)
2780 __vxge_hw_mempool_destroy(ring->mempool);
2781
2782 vp->vpath->ringh = NULL;
2783 __vxge_hw_channel_free(&ring->channel);
2784
2785 return VXGE_HW_OK;
2786 }
2787
2788 /*
2789 * __vxge_hw_ring_create - Create a Ring
2790 * This function creates Ring and initializes it.
2791 */
2792 static enum vxge_hw_status
__vxge_hw_ring_create(struct __vxge_hw_vpath_handle * vp,struct vxge_hw_ring_attr * attr)2793 __vxge_hw_ring_create(struct __vxge_hw_vpath_handle *vp,
2794 struct vxge_hw_ring_attr *attr)
2795 {
2796 enum vxge_hw_status status = VXGE_HW_OK;
2797 struct __vxge_hw_ring *ring;
2798 u32 ring_length;
2799 struct vxge_hw_ring_config *config;
2800 struct __vxge_hw_device *hldev;
2801 u32 vp_id;
2802 static const struct vxge_hw_mempool_cbs ring_mp_callback = {
2803 .item_func_alloc = __vxge_hw_ring_mempool_item_alloc,
2804 };
2805
2806 if ((vp == NULL) || (attr == NULL)) {
2807 status = VXGE_HW_FAIL;
2808 goto exit;
2809 }
2810
2811 hldev = vp->vpath->hldev;
2812 vp_id = vp->vpath->vp_id;
2813
2814 config = &hldev->config.vp_config[vp_id].ring;
2815
2816 ring_length = config->ring_blocks *
2817 vxge_hw_ring_rxds_per_block_get(config->buffer_mode);
2818
2819 ring = (struct __vxge_hw_ring *)__vxge_hw_channel_allocate(vp,
2820 VXGE_HW_CHANNEL_TYPE_RING,
2821 ring_length,
2822 attr->per_rxd_space,
2823 attr->userdata);
2824 if (ring == NULL) {
2825 status = VXGE_HW_ERR_OUT_OF_MEMORY;
2826 goto exit;
2827 }
2828
2829 vp->vpath->ringh = ring;
2830 ring->vp_id = vp_id;
2831 ring->vp_reg = vp->vpath->vp_reg;
2832 ring->common_reg = hldev->common_reg;
2833 ring->stats = &vp->vpath->sw_stats->ring_stats;
2834 ring->config = config;
2835 ring->callback = attr->callback;
2836 ring->rxd_init = attr->rxd_init;
2837 ring->rxd_term = attr->rxd_term;
2838 ring->buffer_mode = config->buffer_mode;
2839 ring->tim_rti_cfg1_saved = vp->vpath->tim_rti_cfg1_saved;
2840 ring->tim_rti_cfg3_saved = vp->vpath->tim_rti_cfg3_saved;
2841 ring->rxds_limit = config->rxds_limit;
2842
2843 ring->rxd_size = vxge_hw_ring_rxd_size_get(config->buffer_mode);
2844 ring->rxd_priv_size =
2845 sizeof(struct __vxge_hw_ring_rxd_priv) + attr->per_rxd_space;
2846 ring->per_rxd_space = attr->per_rxd_space;
2847
2848 ring->rxd_priv_size =
2849 ((ring->rxd_priv_size + VXGE_CACHE_LINE_SIZE - 1) /
2850 VXGE_CACHE_LINE_SIZE) * VXGE_CACHE_LINE_SIZE;
2851
2852 /* how many RxDs can fit into one block. Depends on configured
2853 * buffer_mode. */
2854 ring->rxds_per_block =
2855 vxge_hw_ring_rxds_per_block_get(config->buffer_mode);
2856
2857 /* calculate actual RxD block private size */
2858 ring->rxdblock_priv_size = ring->rxd_priv_size * ring->rxds_per_block;
2859 ring->mempool = __vxge_hw_mempool_create(hldev,
2860 VXGE_HW_BLOCK_SIZE,
2861 VXGE_HW_BLOCK_SIZE,
2862 ring->rxdblock_priv_size,
2863 ring->config->ring_blocks,
2864 ring->config->ring_blocks,
2865 &ring_mp_callback,
2866 ring);
2867 if (ring->mempool == NULL) {
2868 __vxge_hw_ring_delete(vp);
2869 return VXGE_HW_ERR_OUT_OF_MEMORY;
2870 }
2871
2872 status = __vxge_hw_channel_initialize(&ring->channel);
2873 if (status != VXGE_HW_OK) {
2874 __vxge_hw_ring_delete(vp);
2875 goto exit;
2876 }
2877
2878 /* Note:
2879 * Specifying rxd_init callback means two things:
2880 * 1) rxds need to be initialized by driver at channel-open time;
2881 * 2) rxds need to be posted at channel-open time
2882 * (that's what the initial_replenish() below does)
2883 * Currently we don't have a case when the 1) is done without the 2).
2884 */
2885 if (ring->rxd_init) {
2886 status = vxge_hw_ring_replenish(ring);
2887 if (status != VXGE_HW_OK) {
2888 __vxge_hw_ring_delete(vp);
2889 goto exit;
2890 }
2891 }
2892
2893 /* initial replenish will increment the counter in its post() routine,
2894 * we have to reset it */
2895 ring->stats->common_stats.usage_cnt = 0;
2896 exit:
2897 return status;
2898 }
2899
2900 /*
2901 * vxge_hw_device_config_default_get - Initialize device config with defaults.
2902 * Initialize Titan device config with default values.
2903 */
2904 enum vxge_hw_status
vxge_hw_device_config_default_get(struct vxge_hw_device_config * device_config)2905 vxge_hw_device_config_default_get(struct vxge_hw_device_config *device_config)
2906 {
2907 u32 i;
2908
2909 device_config->dma_blockpool_initial =
2910 VXGE_HW_INITIAL_DMA_BLOCK_POOL_SIZE;
2911 device_config->dma_blockpool_max = VXGE_HW_MAX_DMA_BLOCK_POOL_SIZE;
2912 device_config->intr_mode = VXGE_HW_INTR_MODE_DEF;
2913 device_config->rth_en = VXGE_HW_RTH_DEFAULT;
2914 device_config->rth_it_type = VXGE_HW_RTH_IT_TYPE_DEFAULT;
2915 device_config->device_poll_millis = VXGE_HW_DEF_DEVICE_POLL_MILLIS;
2916 device_config->rts_mac_en = VXGE_HW_RTS_MAC_DEFAULT;
2917
2918 for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) {
2919 device_config->vp_config[i].vp_id = i;
2920
2921 device_config->vp_config[i].min_bandwidth =
2922 VXGE_HW_VPATH_BANDWIDTH_DEFAULT;
2923
2924 device_config->vp_config[i].ring.enable = VXGE_HW_RING_DEFAULT;
2925
2926 device_config->vp_config[i].ring.ring_blocks =
2927 VXGE_HW_DEF_RING_BLOCKS;
2928
2929 device_config->vp_config[i].ring.buffer_mode =
2930 VXGE_HW_RING_RXD_BUFFER_MODE_DEFAULT;
2931
2932 device_config->vp_config[i].ring.scatter_mode =
2933 VXGE_HW_RING_SCATTER_MODE_USE_FLASH_DEFAULT;
2934
2935 device_config->vp_config[i].ring.rxds_limit =
2936 VXGE_HW_DEF_RING_RXDS_LIMIT;
2937
2938 device_config->vp_config[i].fifo.enable = VXGE_HW_FIFO_ENABLE;
2939
2940 device_config->vp_config[i].fifo.fifo_blocks =
2941 VXGE_HW_MIN_FIFO_BLOCKS;
2942
2943 device_config->vp_config[i].fifo.max_frags =
2944 VXGE_HW_MAX_FIFO_FRAGS;
2945
2946 device_config->vp_config[i].fifo.memblock_size =
2947 VXGE_HW_DEF_FIFO_MEMBLOCK_SIZE;
2948
2949 device_config->vp_config[i].fifo.alignment_size =
2950 VXGE_HW_DEF_FIFO_ALIGNMENT_SIZE;
2951
2952 device_config->vp_config[i].fifo.intr =
2953 VXGE_HW_FIFO_QUEUE_INTR_DEFAULT;
2954
2955 device_config->vp_config[i].fifo.no_snoop_bits =
2956 VXGE_HW_FIFO_NO_SNOOP_DEFAULT;
2957 device_config->vp_config[i].tti.intr_enable =
2958 VXGE_HW_TIM_INTR_DEFAULT;
2959
2960 device_config->vp_config[i].tti.btimer_val =
2961 VXGE_HW_USE_FLASH_DEFAULT;
2962
2963 device_config->vp_config[i].tti.timer_ac_en =
2964 VXGE_HW_USE_FLASH_DEFAULT;
2965
2966 device_config->vp_config[i].tti.timer_ci_en =
2967 VXGE_HW_USE_FLASH_DEFAULT;
2968
2969 device_config->vp_config[i].tti.timer_ri_en =
2970 VXGE_HW_USE_FLASH_DEFAULT;
2971
2972 device_config->vp_config[i].tti.rtimer_val =
2973 VXGE_HW_USE_FLASH_DEFAULT;
2974
2975 device_config->vp_config[i].tti.util_sel =
2976 VXGE_HW_USE_FLASH_DEFAULT;
2977
2978 device_config->vp_config[i].tti.ltimer_val =
2979 VXGE_HW_USE_FLASH_DEFAULT;
2980
2981 device_config->vp_config[i].tti.urange_a =
2982 VXGE_HW_USE_FLASH_DEFAULT;
2983
2984 device_config->vp_config[i].tti.uec_a =
2985 VXGE_HW_USE_FLASH_DEFAULT;
2986
2987 device_config->vp_config[i].tti.urange_b =
2988 VXGE_HW_USE_FLASH_DEFAULT;
2989
2990 device_config->vp_config[i].tti.uec_b =
2991 VXGE_HW_USE_FLASH_DEFAULT;
2992
2993 device_config->vp_config[i].tti.urange_c =
2994 VXGE_HW_USE_FLASH_DEFAULT;
2995
2996 device_config->vp_config[i].tti.uec_c =
2997 VXGE_HW_USE_FLASH_DEFAULT;
2998
2999 device_config->vp_config[i].tti.uec_d =
3000 VXGE_HW_USE_FLASH_DEFAULT;
3001
3002 device_config->vp_config[i].rti.intr_enable =
3003 VXGE_HW_TIM_INTR_DEFAULT;
3004
3005 device_config->vp_config[i].rti.btimer_val =
3006 VXGE_HW_USE_FLASH_DEFAULT;
3007
3008 device_config->vp_config[i].rti.timer_ac_en =
3009 VXGE_HW_USE_FLASH_DEFAULT;
3010
3011 device_config->vp_config[i].rti.timer_ci_en =
3012 VXGE_HW_USE_FLASH_DEFAULT;
3013
3014 device_config->vp_config[i].rti.timer_ri_en =
3015 VXGE_HW_USE_FLASH_DEFAULT;
3016
3017 device_config->vp_config[i].rti.rtimer_val =
3018 VXGE_HW_USE_FLASH_DEFAULT;
3019
3020 device_config->vp_config[i].rti.util_sel =
3021 VXGE_HW_USE_FLASH_DEFAULT;
3022
3023 device_config->vp_config[i].rti.ltimer_val =
3024 VXGE_HW_USE_FLASH_DEFAULT;
3025
3026 device_config->vp_config[i].rti.urange_a =
3027 VXGE_HW_USE_FLASH_DEFAULT;
3028
3029 device_config->vp_config[i].rti.uec_a =
3030 VXGE_HW_USE_FLASH_DEFAULT;
3031
3032 device_config->vp_config[i].rti.urange_b =
3033 VXGE_HW_USE_FLASH_DEFAULT;
3034
3035 device_config->vp_config[i].rti.uec_b =
3036 VXGE_HW_USE_FLASH_DEFAULT;
3037
3038 device_config->vp_config[i].rti.urange_c =
3039 VXGE_HW_USE_FLASH_DEFAULT;
3040
3041 device_config->vp_config[i].rti.uec_c =
3042 VXGE_HW_USE_FLASH_DEFAULT;
3043
3044 device_config->vp_config[i].rti.uec_d =
3045 VXGE_HW_USE_FLASH_DEFAULT;
3046
3047 device_config->vp_config[i].mtu =
3048 VXGE_HW_VPATH_USE_FLASH_DEFAULT_INITIAL_MTU;
3049
3050 device_config->vp_config[i].rpa_strip_vlan_tag =
3051 VXGE_HW_VPATH_RPA_STRIP_VLAN_TAG_USE_FLASH_DEFAULT;
3052 }
3053
3054 return VXGE_HW_OK;
3055 }
3056
3057 /*
3058 * __vxge_hw_vpath_swapper_set - Set the swapper bits for the vpath.
3059 * Set the swapper bits appropriately for the vpath.
3060 */
3061 static enum vxge_hw_status
__vxge_hw_vpath_swapper_set(struct vxge_hw_vpath_reg __iomem * vpath_reg)3062 __vxge_hw_vpath_swapper_set(struct vxge_hw_vpath_reg __iomem *vpath_reg)
3063 {
3064 #ifndef __BIG_ENDIAN
3065 u64 val64;
3066
3067 val64 = readq(&vpath_reg->vpath_general_cfg1);
3068 wmb();
3069 val64 |= VXGE_HW_VPATH_GENERAL_CFG1_CTL_BYTE_SWAPEN;
3070 writeq(val64, &vpath_reg->vpath_general_cfg1);
3071 wmb();
3072 #endif
3073 return VXGE_HW_OK;
3074 }
3075
3076 /*
3077 * __vxge_hw_kdfc_swapper_set - Set the swapper bits for the kdfc.
3078 * Set the swapper bits appropriately for the vpath.
3079 */
3080 static enum vxge_hw_status
__vxge_hw_kdfc_swapper_set(struct vxge_hw_legacy_reg __iomem * legacy_reg,struct vxge_hw_vpath_reg __iomem * vpath_reg)3081 __vxge_hw_kdfc_swapper_set(struct vxge_hw_legacy_reg __iomem *legacy_reg,
3082 struct vxge_hw_vpath_reg __iomem *vpath_reg)
3083 {
3084 u64 val64;
3085
3086 val64 = readq(&legacy_reg->pifm_wr_swap_en);
3087
3088 if (val64 == VXGE_HW_SWAPPER_WRITE_BYTE_SWAP_ENABLE) {
3089 val64 = readq(&vpath_reg->kdfcctl_cfg0);
3090 wmb();
3091
3092 val64 |= VXGE_HW_KDFCCTL_CFG0_BYTE_SWAPEN_FIFO0 |
3093 VXGE_HW_KDFCCTL_CFG0_BYTE_SWAPEN_FIFO1 |
3094 VXGE_HW_KDFCCTL_CFG0_BYTE_SWAPEN_FIFO2;
3095
3096 writeq(val64, &vpath_reg->kdfcctl_cfg0);
3097 wmb();
3098 }
3099
3100 return VXGE_HW_OK;
3101 }
3102
3103 /*
3104 * vxge_hw_mgmt_reg_read - Read Titan register.
3105 */
3106 enum vxge_hw_status
vxge_hw_mgmt_reg_read(struct __vxge_hw_device * hldev,enum vxge_hw_mgmt_reg_type type,u32 index,u32 offset,u64 * value)3107 vxge_hw_mgmt_reg_read(struct __vxge_hw_device *hldev,
3108 enum vxge_hw_mgmt_reg_type type,
3109 u32 index, u32 offset, u64 *value)
3110 {
3111 enum vxge_hw_status status = VXGE_HW_OK;
3112
3113 if ((hldev == NULL) || (hldev->magic != VXGE_HW_DEVICE_MAGIC)) {
3114 status = VXGE_HW_ERR_INVALID_DEVICE;
3115 goto exit;
3116 }
3117
3118 switch (type) {
3119 case vxge_hw_mgmt_reg_type_legacy:
3120 if (offset > sizeof(struct vxge_hw_legacy_reg) - 8) {
3121 status = VXGE_HW_ERR_INVALID_OFFSET;
3122 break;
3123 }
3124 *value = readq((void __iomem *)hldev->legacy_reg + offset);
3125 break;
3126 case vxge_hw_mgmt_reg_type_toc:
3127 if (offset > sizeof(struct vxge_hw_toc_reg) - 8) {
3128 status = VXGE_HW_ERR_INVALID_OFFSET;
3129 break;
3130 }
3131 *value = readq((void __iomem *)hldev->toc_reg + offset);
3132 break;
3133 case vxge_hw_mgmt_reg_type_common:
3134 if (offset > sizeof(struct vxge_hw_common_reg) - 8) {
3135 status = VXGE_HW_ERR_INVALID_OFFSET;
3136 break;
3137 }
3138 *value = readq((void __iomem *)hldev->common_reg + offset);
3139 break;
3140 case vxge_hw_mgmt_reg_type_mrpcim:
3141 if (!(hldev->access_rights &
3142 VXGE_HW_DEVICE_ACCESS_RIGHT_MRPCIM)) {
3143 status = VXGE_HW_ERR_PRIVILEGED_OPERATION;
3144 break;
3145 }
3146 if (offset > sizeof(struct vxge_hw_mrpcim_reg) - 8) {
3147 status = VXGE_HW_ERR_INVALID_OFFSET;
3148 break;
3149 }
3150 *value = readq((void __iomem *)hldev->mrpcim_reg + offset);
3151 break;
3152 case vxge_hw_mgmt_reg_type_srpcim:
3153 if (!(hldev->access_rights &
3154 VXGE_HW_DEVICE_ACCESS_RIGHT_SRPCIM)) {
3155 status = VXGE_HW_ERR_PRIVILEGED_OPERATION;
3156 break;
3157 }
3158 if (index > VXGE_HW_TITAN_SRPCIM_REG_SPACES - 1) {
3159 status = VXGE_HW_ERR_INVALID_INDEX;
3160 break;
3161 }
3162 if (offset > sizeof(struct vxge_hw_srpcim_reg) - 8) {
3163 status = VXGE_HW_ERR_INVALID_OFFSET;
3164 break;
3165 }
3166 *value = readq((void __iomem *)hldev->srpcim_reg[index] +
3167 offset);
3168 break;
3169 case vxge_hw_mgmt_reg_type_vpmgmt:
3170 if ((index > VXGE_HW_TITAN_VPMGMT_REG_SPACES - 1) ||
3171 (!(hldev->vpath_assignments & vxge_mBIT(index)))) {
3172 status = VXGE_HW_ERR_INVALID_INDEX;
3173 break;
3174 }
3175 if (offset > sizeof(struct vxge_hw_vpmgmt_reg) - 8) {
3176 status = VXGE_HW_ERR_INVALID_OFFSET;
3177 break;
3178 }
3179 *value = readq((void __iomem *)hldev->vpmgmt_reg[index] +
3180 offset);
3181 break;
3182 case vxge_hw_mgmt_reg_type_vpath:
3183 if ((index > VXGE_HW_TITAN_VPATH_REG_SPACES - 1) ||
3184 (!(hldev->vpath_assignments & vxge_mBIT(index)))) {
3185 status = VXGE_HW_ERR_INVALID_INDEX;
3186 break;
3187 }
3188 if (index > VXGE_HW_TITAN_VPATH_REG_SPACES - 1) {
3189 status = VXGE_HW_ERR_INVALID_INDEX;
3190 break;
3191 }
3192 if (offset > sizeof(struct vxge_hw_vpath_reg) - 8) {
3193 status = VXGE_HW_ERR_INVALID_OFFSET;
3194 break;
3195 }
3196 *value = readq((void __iomem *)hldev->vpath_reg[index] +
3197 offset);
3198 break;
3199 default:
3200 status = VXGE_HW_ERR_INVALID_TYPE;
3201 break;
3202 }
3203
3204 exit:
3205 return status;
3206 }
3207
3208 /*
3209 * vxge_hw_vpath_strip_fcs_check - Check for FCS strip.
3210 */
3211 enum vxge_hw_status
vxge_hw_vpath_strip_fcs_check(struct __vxge_hw_device * hldev,u64 vpath_mask)3212 vxge_hw_vpath_strip_fcs_check(struct __vxge_hw_device *hldev, u64 vpath_mask)
3213 {
3214 struct vxge_hw_vpmgmt_reg __iomem *vpmgmt_reg;
3215 int i = 0, j = 0;
3216
3217 for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) {
3218 if (!((vpath_mask) & vxge_mBIT(i)))
3219 continue;
3220 vpmgmt_reg = hldev->vpmgmt_reg[i];
3221 for (j = 0; j < VXGE_HW_MAC_MAX_MAC_PORT_ID; j++) {
3222 if (readq(&vpmgmt_reg->rxmac_cfg0_port_vpmgmt_clone[j])
3223 & VXGE_HW_RXMAC_CFG0_PORT_VPMGMT_CLONE_STRIP_FCS)
3224 return VXGE_HW_FAIL;
3225 }
3226 }
3227 return VXGE_HW_OK;
3228 }
3229 /*
3230 * vxge_hw_mgmt_reg_Write - Write Titan register.
3231 */
3232 enum vxge_hw_status
vxge_hw_mgmt_reg_write(struct __vxge_hw_device * hldev,enum vxge_hw_mgmt_reg_type type,u32 index,u32 offset,u64 value)3233 vxge_hw_mgmt_reg_write(struct __vxge_hw_device *hldev,
3234 enum vxge_hw_mgmt_reg_type type,
3235 u32 index, u32 offset, u64 value)
3236 {
3237 enum vxge_hw_status status = VXGE_HW_OK;
3238
3239 if ((hldev == NULL) || (hldev->magic != VXGE_HW_DEVICE_MAGIC)) {
3240 status = VXGE_HW_ERR_INVALID_DEVICE;
3241 goto exit;
3242 }
3243
3244 switch (type) {
3245 case vxge_hw_mgmt_reg_type_legacy:
3246 if (offset > sizeof(struct vxge_hw_legacy_reg) - 8) {
3247 status = VXGE_HW_ERR_INVALID_OFFSET;
3248 break;
3249 }
3250 writeq(value, (void __iomem *)hldev->legacy_reg + offset);
3251 break;
3252 case vxge_hw_mgmt_reg_type_toc:
3253 if (offset > sizeof(struct vxge_hw_toc_reg) - 8) {
3254 status = VXGE_HW_ERR_INVALID_OFFSET;
3255 break;
3256 }
3257 writeq(value, (void __iomem *)hldev->toc_reg + offset);
3258 break;
3259 case vxge_hw_mgmt_reg_type_common:
3260 if (offset > sizeof(struct vxge_hw_common_reg) - 8) {
3261 status = VXGE_HW_ERR_INVALID_OFFSET;
3262 break;
3263 }
3264 writeq(value, (void __iomem *)hldev->common_reg + offset);
3265 break;
3266 case vxge_hw_mgmt_reg_type_mrpcim:
3267 if (!(hldev->access_rights &
3268 VXGE_HW_DEVICE_ACCESS_RIGHT_MRPCIM)) {
3269 status = VXGE_HW_ERR_PRIVILEGED_OPERATION;
3270 break;
3271 }
3272 if (offset > sizeof(struct vxge_hw_mrpcim_reg) - 8) {
3273 status = VXGE_HW_ERR_INVALID_OFFSET;
3274 break;
3275 }
3276 writeq(value, (void __iomem *)hldev->mrpcim_reg + offset);
3277 break;
3278 case vxge_hw_mgmt_reg_type_srpcim:
3279 if (!(hldev->access_rights &
3280 VXGE_HW_DEVICE_ACCESS_RIGHT_SRPCIM)) {
3281 status = VXGE_HW_ERR_PRIVILEGED_OPERATION;
3282 break;
3283 }
3284 if (index > VXGE_HW_TITAN_SRPCIM_REG_SPACES - 1) {
3285 status = VXGE_HW_ERR_INVALID_INDEX;
3286 break;
3287 }
3288 if (offset > sizeof(struct vxge_hw_srpcim_reg) - 8) {
3289 status = VXGE_HW_ERR_INVALID_OFFSET;
3290 break;
3291 }
3292 writeq(value, (void __iomem *)hldev->srpcim_reg[index] +
3293 offset);
3294
3295 break;
3296 case vxge_hw_mgmt_reg_type_vpmgmt:
3297 if ((index > VXGE_HW_TITAN_VPMGMT_REG_SPACES - 1) ||
3298 (!(hldev->vpath_assignments & vxge_mBIT(index)))) {
3299 status = VXGE_HW_ERR_INVALID_INDEX;
3300 break;
3301 }
3302 if (offset > sizeof(struct vxge_hw_vpmgmt_reg) - 8) {
3303 status = VXGE_HW_ERR_INVALID_OFFSET;
3304 break;
3305 }
3306 writeq(value, (void __iomem *)hldev->vpmgmt_reg[index] +
3307 offset);
3308 break;
3309 case vxge_hw_mgmt_reg_type_vpath:
3310 if ((index > VXGE_HW_TITAN_VPATH_REG_SPACES-1) ||
3311 (!(hldev->vpath_assignments & vxge_mBIT(index)))) {
3312 status = VXGE_HW_ERR_INVALID_INDEX;
3313 break;
3314 }
3315 if (offset > sizeof(struct vxge_hw_vpath_reg) - 8) {
3316 status = VXGE_HW_ERR_INVALID_OFFSET;
3317 break;
3318 }
3319 writeq(value, (void __iomem *)hldev->vpath_reg[index] +
3320 offset);
3321 break;
3322 default:
3323 status = VXGE_HW_ERR_INVALID_TYPE;
3324 break;
3325 }
3326 exit:
3327 return status;
3328 }
3329
3330 /*
3331 * __vxge_hw_fifo_abort - Returns the TxD
3332 * This function terminates the TxDs of fifo
3333 */
__vxge_hw_fifo_abort(struct __vxge_hw_fifo * fifo)3334 static enum vxge_hw_status __vxge_hw_fifo_abort(struct __vxge_hw_fifo *fifo)
3335 {
3336 void *txdlh;
3337
3338 for (;;) {
3339 vxge_hw_channel_dtr_try_complete(&fifo->channel, &txdlh);
3340
3341 if (txdlh == NULL)
3342 break;
3343
3344 vxge_hw_channel_dtr_complete(&fifo->channel);
3345
3346 if (fifo->txdl_term) {
3347 fifo->txdl_term(txdlh,
3348 VXGE_HW_TXDL_STATE_POSTED,
3349 fifo->channel.userdata);
3350 }
3351
3352 vxge_hw_channel_dtr_free(&fifo->channel, txdlh);
3353 }
3354
3355 return VXGE_HW_OK;
3356 }
3357
3358 /*
3359 * __vxge_hw_fifo_reset - Resets the fifo
3360 * This function resets the fifo during vpath reset operation
3361 */
__vxge_hw_fifo_reset(struct __vxge_hw_fifo * fifo)3362 static enum vxge_hw_status __vxge_hw_fifo_reset(struct __vxge_hw_fifo *fifo)
3363 {
3364 enum vxge_hw_status status = VXGE_HW_OK;
3365
3366 __vxge_hw_fifo_abort(fifo);
3367 status = __vxge_hw_channel_reset(&fifo->channel);
3368
3369 return status;
3370 }
3371
3372 /*
3373 * __vxge_hw_fifo_delete - Removes the FIFO
3374 * This function freeup the memory pool and removes the FIFO
3375 */
3376 static enum vxge_hw_status
__vxge_hw_fifo_delete(struct __vxge_hw_vpath_handle * vp)3377 __vxge_hw_fifo_delete(struct __vxge_hw_vpath_handle *vp)
3378 {
3379 struct __vxge_hw_fifo *fifo = vp->vpath->fifoh;
3380
3381 __vxge_hw_fifo_abort(fifo);
3382
3383 if (fifo->mempool)
3384 __vxge_hw_mempool_destroy(fifo->mempool);
3385
3386 vp->vpath->fifoh = NULL;
3387
3388 __vxge_hw_channel_free(&fifo->channel);
3389
3390 return VXGE_HW_OK;
3391 }
3392
3393 /*
3394 * __vxge_hw_fifo_mempool_item_alloc - Allocate List blocks for TxD
3395 * list callback
3396 * This function is callback passed to __vxge_hw_mempool_create to create memory
3397 * pool for TxD list
3398 */
3399 static void
__vxge_hw_fifo_mempool_item_alloc(struct vxge_hw_mempool * mempoolh,u32 memblock_index,struct vxge_hw_mempool_dma * dma_object,u32 index,u32 is_last)3400 __vxge_hw_fifo_mempool_item_alloc(
3401 struct vxge_hw_mempool *mempoolh,
3402 u32 memblock_index, struct vxge_hw_mempool_dma *dma_object,
3403 u32 index, u32 is_last)
3404 {
3405 u32 memblock_item_idx;
3406 struct __vxge_hw_fifo_txdl_priv *txdl_priv;
3407 struct vxge_hw_fifo_txd *txdp =
3408 (struct vxge_hw_fifo_txd *)mempoolh->items_arr[index];
3409 struct __vxge_hw_fifo *fifo =
3410 (struct __vxge_hw_fifo *)mempoolh->userdata;
3411 void *memblock = mempoolh->memblocks_arr[memblock_index];
3412
3413 vxge_assert(txdp);
3414
3415 txdp->host_control = (u64) (size_t)
3416 __vxge_hw_mempool_item_priv(mempoolh, memblock_index, txdp,
3417 &memblock_item_idx);
3418
3419 txdl_priv = __vxge_hw_fifo_txdl_priv(fifo, txdp);
3420
3421 vxge_assert(txdl_priv);
3422
3423 fifo->channel.reserve_arr[fifo->channel.reserve_ptr - 1 - index] = txdp;
3424
3425 /* pre-format HW's TxDL's private */
3426 txdl_priv->dma_offset = (char *)txdp - (char *)memblock;
3427 txdl_priv->dma_addr = dma_object->addr + txdl_priv->dma_offset;
3428 txdl_priv->dma_handle = dma_object->handle;
3429 txdl_priv->memblock = memblock;
3430 txdl_priv->first_txdp = txdp;
3431 txdl_priv->next_txdl_priv = NULL;
3432 txdl_priv->alloc_frags = 0;
3433 }
3434
3435 /*
3436 * __vxge_hw_fifo_create - Create a FIFO
3437 * This function creates FIFO and initializes it.
3438 */
3439 static enum vxge_hw_status
__vxge_hw_fifo_create(struct __vxge_hw_vpath_handle * vp,struct vxge_hw_fifo_attr * attr)3440 __vxge_hw_fifo_create(struct __vxge_hw_vpath_handle *vp,
3441 struct vxge_hw_fifo_attr *attr)
3442 {
3443 enum vxge_hw_status status = VXGE_HW_OK;
3444 struct __vxge_hw_fifo *fifo;
3445 struct vxge_hw_fifo_config *config;
3446 u32 txdl_size, txdl_per_memblock;
3447 struct vxge_hw_mempool_cbs fifo_mp_callback;
3448 struct __vxge_hw_virtualpath *vpath;
3449
3450 if ((vp == NULL) || (attr == NULL)) {
3451 status = VXGE_HW_ERR_INVALID_HANDLE;
3452 goto exit;
3453 }
3454 vpath = vp->vpath;
3455 config = &vpath->hldev->config.vp_config[vpath->vp_id].fifo;
3456
3457 txdl_size = config->max_frags * sizeof(struct vxge_hw_fifo_txd);
3458
3459 txdl_per_memblock = config->memblock_size / txdl_size;
3460
3461 fifo = (struct __vxge_hw_fifo *)__vxge_hw_channel_allocate(vp,
3462 VXGE_HW_CHANNEL_TYPE_FIFO,
3463 config->fifo_blocks * txdl_per_memblock,
3464 attr->per_txdl_space, attr->userdata);
3465
3466 if (fifo == NULL) {
3467 status = VXGE_HW_ERR_OUT_OF_MEMORY;
3468 goto exit;
3469 }
3470
3471 vpath->fifoh = fifo;
3472 fifo->nofl_db = vpath->nofl_db;
3473
3474 fifo->vp_id = vpath->vp_id;
3475 fifo->vp_reg = vpath->vp_reg;
3476 fifo->stats = &vpath->sw_stats->fifo_stats;
3477
3478 fifo->config = config;
3479
3480 /* apply "interrupts per txdl" attribute */
3481 fifo->interrupt_type = VXGE_HW_FIFO_TXD_INT_TYPE_UTILZ;
3482 fifo->tim_tti_cfg1_saved = vpath->tim_tti_cfg1_saved;
3483 fifo->tim_tti_cfg3_saved = vpath->tim_tti_cfg3_saved;
3484
3485 if (fifo->config->intr)
3486 fifo->interrupt_type = VXGE_HW_FIFO_TXD_INT_TYPE_PER_LIST;
3487
3488 fifo->no_snoop_bits = config->no_snoop_bits;
3489
3490 /*
3491 * FIFO memory management strategy:
3492 *
3493 * TxDL split into three independent parts:
3494 * - set of TxD's
3495 * - TxD HW private part
3496 * - driver private part
3497 *
3498 * Adaptative memory allocation used. i.e. Memory allocated on
3499 * demand with the size which will fit into one memory block.
3500 * One memory block may contain more than one TxDL.
3501 *
3502 * During "reserve" operations more memory can be allocated on demand
3503 * for example due to FIFO full condition.
3504 *
3505 * Pool of memory memblocks never shrinks except in __vxge_hw_fifo_close
3506 * routine which will essentially stop the channel and free resources.
3507 */
3508
3509 /* TxDL common private size == TxDL private + driver private */
3510 fifo->priv_size =
3511 sizeof(struct __vxge_hw_fifo_txdl_priv) + attr->per_txdl_space;
3512 fifo->priv_size = ((fifo->priv_size + VXGE_CACHE_LINE_SIZE - 1) /
3513 VXGE_CACHE_LINE_SIZE) * VXGE_CACHE_LINE_SIZE;
3514
3515 fifo->per_txdl_space = attr->per_txdl_space;
3516
3517 /* recompute txdl size to be cacheline aligned */
3518 fifo->txdl_size = txdl_size;
3519 fifo->txdl_per_memblock = txdl_per_memblock;
3520
3521 fifo->txdl_term = attr->txdl_term;
3522 fifo->callback = attr->callback;
3523
3524 if (fifo->txdl_per_memblock == 0) {
3525 __vxge_hw_fifo_delete(vp);
3526 status = VXGE_HW_ERR_INVALID_BLOCK_SIZE;
3527 goto exit;
3528 }
3529
3530 fifo_mp_callback.item_func_alloc = __vxge_hw_fifo_mempool_item_alloc;
3531
3532 fifo->mempool =
3533 __vxge_hw_mempool_create(vpath->hldev,
3534 fifo->config->memblock_size,
3535 fifo->txdl_size,
3536 fifo->priv_size,
3537 (fifo->config->fifo_blocks * fifo->txdl_per_memblock),
3538 (fifo->config->fifo_blocks * fifo->txdl_per_memblock),
3539 &fifo_mp_callback,
3540 fifo);
3541
3542 if (fifo->mempool == NULL) {
3543 __vxge_hw_fifo_delete(vp);
3544 status = VXGE_HW_ERR_OUT_OF_MEMORY;
3545 goto exit;
3546 }
3547
3548 status = __vxge_hw_channel_initialize(&fifo->channel);
3549 if (status != VXGE_HW_OK) {
3550 __vxge_hw_fifo_delete(vp);
3551 goto exit;
3552 }
3553
3554 vxge_assert(fifo->channel.reserve_ptr);
3555 exit:
3556 return status;
3557 }
3558
3559 /*
3560 * __vxge_hw_vpath_pci_read - Read the content of given address
3561 * in pci config space.
3562 * Read from the vpath pci config space.
3563 */
3564 static enum vxge_hw_status
__vxge_hw_vpath_pci_read(struct __vxge_hw_virtualpath * vpath,u32 phy_func_0,u32 offset,u32 * val)3565 __vxge_hw_vpath_pci_read(struct __vxge_hw_virtualpath *vpath,
3566 u32 phy_func_0, u32 offset, u32 *val)
3567 {
3568 u64 val64;
3569 enum vxge_hw_status status = VXGE_HW_OK;
3570 struct vxge_hw_vpath_reg __iomem *vp_reg = vpath->vp_reg;
3571
3572 val64 = VXGE_HW_PCI_CONFIG_ACCESS_CFG1_ADDRESS(offset);
3573
3574 if (phy_func_0)
3575 val64 |= VXGE_HW_PCI_CONFIG_ACCESS_CFG1_SEL_FUNC0;
3576
3577 writeq(val64, &vp_reg->pci_config_access_cfg1);
3578 wmb();
3579 writeq(VXGE_HW_PCI_CONFIG_ACCESS_CFG2_REQ,
3580 &vp_reg->pci_config_access_cfg2);
3581 wmb();
3582
3583 status = __vxge_hw_device_register_poll(
3584 &vp_reg->pci_config_access_cfg2,
3585 VXGE_HW_INTR_MASK_ALL, VXGE_HW_DEF_DEVICE_POLL_MILLIS);
3586
3587 if (status != VXGE_HW_OK)
3588 goto exit;
3589
3590 val64 = readq(&vp_reg->pci_config_access_status);
3591
3592 if (val64 & VXGE_HW_PCI_CONFIG_ACCESS_STATUS_ACCESS_ERR) {
3593 status = VXGE_HW_FAIL;
3594 *val = 0;
3595 } else
3596 *val = (u32)vxge_bVALn(val64, 32, 32);
3597 exit:
3598 return status;
3599 }
3600
3601 /**
3602 * vxge_hw_device_flick_link_led - Flick (blink) link LED.
3603 * @hldev: HW device.
3604 * @on_off: TRUE if flickering to be on, FALSE to be off
3605 *
3606 * Flicker the link LED.
3607 */
3608 enum vxge_hw_status
vxge_hw_device_flick_link_led(struct __vxge_hw_device * hldev,u64 on_off)3609 vxge_hw_device_flick_link_led(struct __vxge_hw_device *hldev, u64 on_off)
3610 {
3611 struct __vxge_hw_virtualpath *vpath;
3612 u64 data0, data1 = 0, steer_ctrl = 0;
3613 enum vxge_hw_status status;
3614
3615 if (hldev == NULL) {
3616 status = VXGE_HW_ERR_INVALID_DEVICE;
3617 goto exit;
3618 }
3619
3620 vpath = &hldev->virtual_paths[hldev->first_vp_id];
3621
3622 data0 = on_off;
3623 status = vxge_hw_vpath_fw_api(vpath,
3624 VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION_LED_CONTROL,
3625 VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_FW_MEMO,
3626 0, &data0, &data1, &steer_ctrl);
3627 exit:
3628 return status;
3629 }
3630
3631 /*
3632 * __vxge_hw_vpath_rts_table_get - Get the entries from RTS access tables
3633 */
3634 enum vxge_hw_status
__vxge_hw_vpath_rts_table_get(struct __vxge_hw_vpath_handle * vp,u32 action,u32 rts_table,u32 offset,u64 * data0,u64 * data1)3635 __vxge_hw_vpath_rts_table_get(struct __vxge_hw_vpath_handle *vp,
3636 u32 action, u32 rts_table, u32 offset,
3637 u64 *data0, u64 *data1)
3638 {
3639 enum vxge_hw_status status;
3640 u64 steer_ctrl = 0;
3641
3642 if (vp == NULL) {
3643 status = VXGE_HW_ERR_INVALID_HANDLE;
3644 goto exit;
3645 }
3646
3647 if ((rts_table ==
3648 VXGE_HW_RTS_ACS_STEER_CTRL_DATA_STRUCT_SEL_RTH_SOLO_IT) ||
3649 (rts_table ==
3650 VXGE_HW_RTS_ACS_STEER_CTRL_DATA_STRUCT_SEL_RTH_MULTI_IT) ||
3651 (rts_table ==
3652 VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_RTH_MASK) ||
3653 (rts_table ==
3654 VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_RTH_KEY)) {
3655 steer_ctrl = VXGE_HW_RTS_ACCESS_STEER_CTRL_TABLE_SEL;
3656 }
3657
3658 status = vxge_hw_vpath_fw_api(vp->vpath, action, rts_table, offset,
3659 data0, data1, &steer_ctrl);
3660 if (status != VXGE_HW_OK)
3661 goto exit;
3662
3663 if ((rts_table != VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_DA) &&
3664 (rts_table !=
3665 VXGE_HW_RTS_ACS_STEER_CTRL_DATA_STRUCT_SEL_RTH_MULTI_IT))
3666 *data1 = 0;
3667 exit:
3668 return status;
3669 }
3670
3671 /*
3672 * __vxge_hw_vpath_rts_table_set - Set the entries of RTS access tables
3673 */
3674 enum vxge_hw_status
__vxge_hw_vpath_rts_table_set(struct __vxge_hw_vpath_handle * vp,u32 action,u32 rts_table,u32 offset,u64 steer_data0,u64 steer_data1)3675 __vxge_hw_vpath_rts_table_set(struct __vxge_hw_vpath_handle *vp, u32 action,
3676 u32 rts_table, u32 offset, u64 steer_data0,
3677 u64 steer_data1)
3678 {
3679 u64 data0, data1 = 0, steer_ctrl = 0;
3680 enum vxge_hw_status status;
3681
3682 if (vp == NULL) {
3683 status = VXGE_HW_ERR_INVALID_HANDLE;
3684 goto exit;
3685 }
3686
3687 data0 = steer_data0;
3688
3689 if ((rts_table == VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_DA) ||
3690 (rts_table ==
3691 VXGE_HW_RTS_ACS_STEER_CTRL_DATA_STRUCT_SEL_RTH_MULTI_IT))
3692 data1 = steer_data1;
3693
3694 status = vxge_hw_vpath_fw_api(vp->vpath, action, rts_table, offset,
3695 &data0, &data1, &steer_ctrl);
3696 exit:
3697 return status;
3698 }
3699
3700 /*
3701 * vxge_hw_vpath_rts_rth_set - Set/configure RTS hashing.
3702 */
vxge_hw_vpath_rts_rth_set(struct __vxge_hw_vpath_handle * vp,enum vxge_hw_rth_algoritms algorithm,struct vxge_hw_rth_hash_types * hash_type,u16 bucket_size)3703 enum vxge_hw_status vxge_hw_vpath_rts_rth_set(
3704 struct __vxge_hw_vpath_handle *vp,
3705 enum vxge_hw_rth_algoritms algorithm,
3706 struct vxge_hw_rth_hash_types *hash_type,
3707 u16 bucket_size)
3708 {
3709 u64 data0, data1;
3710 enum vxge_hw_status status = VXGE_HW_OK;
3711
3712 if (vp == NULL) {
3713 status = VXGE_HW_ERR_INVALID_HANDLE;
3714 goto exit;
3715 }
3716
3717 status = __vxge_hw_vpath_rts_table_get(vp,
3718 VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION_READ_ENTRY,
3719 VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_RTH_GEN_CFG,
3720 0, &data0, &data1);
3721 if (status != VXGE_HW_OK)
3722 goto exit;
3723
3724 data0 &= ~(VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_GEN_BUCKET_SIZE(0xf) |
3725 VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_GEN_ALG_SEL(0x3));
3726
3727 data0 |= VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_GEN_RTH_EN |
3728 VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_GEN_BUCKET_SIZE(bucket_size) |
3729 VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_GEN_ALG_SEL(algorithm);
3730
3731 if (hash_type->hash_type_tcpipv4_en)
3732 data0 |= VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_GEN_RTH_TCP_IPV4_EN;
3733
3734 if (hash_type->hash_type_ipv4_en)
3735 data0 |= VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_GEN_RTH_IPV4_EN;
3736
3737 if (hash_type->hash_type_tcpipv6_en)
3738 data0 |= VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_GEN_RTH_TCP_IPV6_EN;
3739
3740 if (hash_type->hash_type_ipv6_en)
3741 data0 |= VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_GEN_RTH_IPV6_EN;
3742
3743 if (hash_type->hash_type_tcpipv6ex_en)
3744 data0 |=
3745 VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_GEN_RTH_TCP_IPV6_EX_EN;
3746
3747 if (hash_type->hash_type_ipv6ex_en)
3748 data0 |= VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_GEN_RTH_IPV6_EX_EN;
3749
3750 if (VXGE_HW_RTS_ACCESS_STEER_DATA0_GET_RTH_GEN_ACTIVE_TABLE(data0))
3751 data0 &= ~VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_GEN_ACTIVE_TABLE;
3752 else
3753 data0 |= VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_GEN_ACTIVE_TABLE;
3754
3755 status = __vxge_hw_vpath_rts_table_set(vp,
3756 VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION_WRITE_ENTRY,
3757 VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_RTH_GEN_CFG,
3758 0, data0, 0);
3759 exit:
3760 return status;
3761 }
3762
3763 static void
vxge_hw_rts_rth_data0_data1_get(u32 j,u64 * data0,u64 * data1,u16 flag,u8 * itable)3764 vxge_hw_rts_rth_data0_data1_get(u32 j, u64 *data0, u64 *data1,
3765 u16 flag, u8 *itable)
3766 {
3767 switch (flag) {
3768 case 1:
3769 *data0 = VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_ITEM0_BUCKET_NUM(j)|
3770 VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_ITEM0_ENTRY_EN |
3771 VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_ITEM0_BUCKET_DATA(
3772 itable[j]);
3773 /* fall through */
3774 case 2:
3775 *data0 |=
3776 VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_ITEM1_BUCKET_NUM(j)|
3777 VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_ITEM1_ENTRY_EN |
3778 VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_ITEM1_BUCKET_DATA(
3779 itable[j]);
3780 /* fall through */
3781 case 3:
3782 *data1 = VXGE_HW_RTS_ACCESS_STEER_DATA1_RTH_ITEM0_BUCKET_NUM(j)|
3783 VXGE_HW_RTS_ACCESS_STEER_DATA1_RTH_ITEM0_ENTRY_EN |
3784 VXGE_HW_RTS_ACCESS_STEER_DATA1_RTH_ITEM0_BUCKET_DATA(
3785 itable[j]);
3786 /* fall through */
3787 case 4:
3788 *data1 |=
3789 VXGE_HW_RTS_ACCESS_STEER_DATA1_RTH_ITEM1_BUCKET_NUM(j)|
3790 VXGE_HW_RTS_ACCESS_STEER_DATA1_RTH_ITEM1_ENTRY_EN |
3791 VXGE_HW_RTS_ACCESS_STEER_DATA1_RTH_ITEM1_BUCKET_DATA(
3792 itable[j]);
3793 default:
3794 return;
3795 }
3796 }
3797 /*
3798 * vxge_hw_vpath_rts_rth_itable_set - Set/configure indirection table (IT).
3799 */
vxge_hw_vpath_rts_rth_itable_set(struct __vxge_hw_vpath_handle ** vpath_handles,u32 vpath_count,u8 * mtable,u8 * itable,u32 itable_size)3800 enum vxge_hw_status vxge_hw_vpath_rts_rth_itable_set(
3801 struct __vxge_hw_vpath_handle **vpath_handles,
3802 u32 vpath_count,
3803 u8 *mtable,
3804 u8 *itable,
3805 u32 itable_size)
3806 {
3807 u32 i, j, action, rts_table;
3808 u64 data0;
3809 u64 data1;
3810 u32 max_entries;
3811 enum vxge_hw_status status = VXGE_HW_OK;
3812 struct __vxge_hw_vpath_handle *vp = vpath_handles[0];
3813
3814 if (vp == NULL) {
3815 status = VXGE_HW_ERR_INVALID_HANDLE;
3816 goto exit;
3817 }
3818
3819 max_entries = (((u32)1) << itable_size);
3820
3821 if (vp->vpath->hldev->config.rth_it_type
3822 == VXGE_HW_RTH_IT_TYPE_SOLO_IT) {
3823 action = VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION_WRITE_ENTRY;
3824 rts_table =
3825 VXGE_HW_RTS_ACS_STEER_CTRL_DATA_STRUCT_SEL_RTH_SOLO_IT;
3826
3827 for (j = 0; j < max_entries; j++) {
3828
3829 data1 = 0;
3830
3831 data0 =
3832 VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_SOLO_IT_BUCKET_DATA(
3833 itable[j]);
3834
3835 status = __vxge_hw_vpath_rts_table_set(vpath_handles[0],
3836 action, rts_table, j, data0, data1);
3837
3838 if (status != VXGE_HW_OK)
3839 goto exit;
3840 }
3841
3842 for (j = 0; j < max_entries; j++) {
3843
3844 data1 = 0;
3845
3846 data0 =
3847 VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_SOLO_IT_ENTRY_EN |
3848 VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_SOLO_IT_BUCKET_DATA(
3849 itable[j]);
3850
3851 status = __vxge_hw_vpath_rts_table_set(
3852 vpath_handles[mtable[itable[j]]], action,
3853 rts_table, j, data0, data1);
3854
3855 if (status != VXGE_HW_OK)
3856 goto exit;
3857 }
3858 } else {
3859 action = VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION_WRITE_ENTRY;
3860 rts_table =
3861 VXGE_HW_RTS_ACS_STEER_CTRL_DATA_STRUCT_SEL_RTH_MULTI_IT;
3862 for (i = 0; i < vpath_count; i++) {
3863
3864 for (j = 0; j < max_entries;) {
3865
3866 data0 = 0;
3867 data1 = 0;
3868
3869 while (j < max_entries) {
3870 if (mtable[itable[j]] != i) {
3871 j++;
3872 continue;
3873 }
3874 vxge_hw_rts_rth_data0_data1_get(j,
3875 &data0, &data1, 1, itable);
3876 j++;
3877 break;
3878 }
3879
3880 while (j < max_entries) {
3881 if (mtable[itable[j]] != i) {
3882 j++;
3883 continue;
3884 }
3885 vxge_hw_rts_rth_data0_data1_get(j,
3886 &data0, &data1, 2, itable);
3887 j++;
3888 break;
3889 }
3890
3891 while (j < max_entries) {
3892 if (mtable[itable[j]] != i) {
3893 j++;
3894 continue;
3895 }
3896 vxge_hw_rts_rth_data0_data1_get(j,
3897 &data0, &data1, 3, itable);
3898 j++;
3899 break;
3900 }
3901
3902 while (j < max_entries) {
3903 if (mtable[itable[j]] != i) {
3904 j++;
3905 continue;
3906 }
3907 vxge_hw_rts_rth_data0_data1_get(j,
3908 &data0, &data1, 4, itable);
3909 j++;
3910 break;
3911 }
3912
3913 if (data0 != 0) {
3914 status = __vxge_hw_vpath_rts_table_set(
3915 vpath_handles[i],
3916 action, rts_table,
3917 0, data0, data1);
3918
3919 if (status != VXGE_HW_OK)
3920 goto exit;
3921 }
3922 }
3923 }
3924 }
3925 exit:
3926 return status;
3927 }
3928
3929 /**
3930 * vxge_hw_vpath_check_leak - Check for memory leak
3931 * @ringh: Handle to the ring object used for receive
3932 *
3933 * If PRC_RXD_DOORBELL_VPn.NEW_QW_CNT is larger or equal to
3934 * PRC_CFG6_VPn.RXD_SPAT then a leak has occurred.
3935 * Returns: VXGE_HW_FAIL, if leak has occurred.
3936 *
3937 */
3938 enum vxge_hw_status
vxge_hw_vpath_check_leak(struct __vxge_hw_ring * ring)3939 vxge_hw_vpath_check_leak(struct __vxge_hw_ring *ring)
3940 {
3941 enum vxge_hw_status status = VXGE_HW_OK;
3942 u64 rxd_new_count, rxd_spat;
3943
3944 if (ring == NULL)
3945 return status;
3946
3947 rxd_new_count = readl(&ring->vp_reg->prc_rxd_doorbell);
3948 rxd_spat = readq(&ring->vp_reg->prc_cfg6);
3949 rxd_spat = VXGE_HW_PRC_CFG6_RXD_SPAT(rxd_spat);
3950
3951 if (rxd_new_count >= rxd_spat)
3952 status = VXGE_HW_FAIL;
3953
3954 return status;
3955 }
3956
3957 /*
3958 * __vxge_hw_vpath_mgmt_read
3959 * This routine reads the vpath_mgmt registers
3960 */
3961 static enum vxge_hw_status
__vxge_hw_vpath_mgmt_read(struct __vxge_hw_device * hldev,struct __vxge_hw_virtualpath * vpath)3962 __vxge_hw_vpath_mgmt_read(
3963 struct __vxge_hw_device *hldev,
3964 struct __vxge_hw_virtualpath *vpath)
3965 {
3966 u32 i, mtu = 0, max_pyld = 0;
3967 u64 val64;
3968
3969 for (i = 0; i < VXGE_HW_MAC_MAX_MAC_PORT_ID; i++) {
3970
3971 val64 = readq(&vpath->vpmgmt_reg->
3972 rxmac_cfg0_port_vpmgmt_clone[i]);
3973 max_pyld =
3974 (u32)
3975 VXGE_HW_RXMAC_CFG0_PORT_VPMGMT_CLONE_GET_MAX_PYLD_LEN
3976 (val64);
3977 if (mtu < max_pyld)
3978 mtu = max_pyld;
3979 }
3980
3981 vpath->max_mtu = mtu + VXGE_HW_MAC_HEADER_MAX_SIZE;
3982
3983 val64 = readq(&vpath->vpmgmt_reg->xmac_vsport_choices_vp);
3984
3985 for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) {
3986 if (val64 & vxge_mBIT(i))
3987 vpath->vsport_number = i;
3988 }
3989
3990 val64 = readq(&vpath->vpmgmt_reg->xgmac_gen_status_vpmgmt_clone);
3991
3992 if (val64 & VXGE_HW_XGMAC_GEN_STATUS_VPMGMT_CLONE_XMACJ_NTWK_OK)
3993 VXGE_HW_DEVICE_LINK_STATE_SET(vpath->hldev, VXGE_HW_LINK_UP);
3994 else
3995 VXGE_HW_DEVICE_LINK_STATE_SET(vpath->hldev, VXGE_HW_LINK_DOWN);
3996
3997 return VXGE_HW_OK;
3998 }
3999
4000 /*
4001 * __vxge_hw_vpath_reset_check - Check if resetting the vpath completed
4002 * This routine checks the vpath_rst_in_prog register to see if
4003 * adapter completed the reset process for the vpath
4004 */
4005 static enum vxge_hw_status
__vxge_hw_vpath_reset_check(struct __vxge_hw_virtualpath * vpath)4006 __vxge_hw_vpath_reset_check(struct __vxge_hw_virtualpath *vpath)
4007 {
4008 enum vxge_hw_status status;
4009
4010 status = __vxge_hw_device_register_poll(
4011 &vpath->hldev->common_reg->vpath_rst_in_prog,
4012 VXGE_HW_VPATH_RST_IN_PROG_VPATH_RST_IN_PROG(
4013 1 << (16 - vpath->vp_id)),
4014 vpath->hldev->config.device_poll_millis);
4015
4016 return status;
4017 }
4018
4019 /*
4020 * __vxge_hw_vpath_reset
4021 * This routine resets the vpath on the device
4022 */
4023 static enum vxge_hw_status
__vxge_hw_vpath_reset(struct __vxge_hw_device * hldev,u32 vp_id)4024 __vxge_hw_vpath_reset(struct __vxge_hw_device *hldev, u32 vp_id)
4025 {
4026 u64 val64;
4027
4028 val64 = VXGE_HW_CMN_RSTHDLR_CFG0_SW_RESET_VPATH(1 << (16 - vp_id));
4029
4030 __vxge_hw_pio_mem_write32_upper((u32)vxge_bVALn(val64, 0, 32),
4031 &hldev->common_reg->cmn_rsthdlr_cfg0);
4032
4033 return VXGE_HW_OK;
4034 }
4035
4036 /*
4037 * __vxge_hw_vpath_sw_reset
4038 * This routine resets the vpath structures
4039 */
4040 static enum vxge_hw_status
__vxge_hw_vpath_sw_reset(struct __vxge_hw_device * hldev,u32 vp_id)4041 __vxge_hw_vpath_sw_reset(struct __vxge_hw_device *hldev, u32 vp_id)
4042 {
4043 enum vxge_hw_status status = VXGE_HW_OK;
4044 struct __vxge_hw_virtualpath *vpath;
4045
4046 vpath = &hldev->virtual_paths[vp_id];
4047
4048 if (vpath->ringh) {
4049 status = __vxge_hw_ring_reset(vpath->ringh);
4050 if (status != VXGE_HW_OK)
4051 goto exit;
4052 }
4053
4054 if (vpath->fifoh)
4055 status = __vxge_hw_fifo_reset(vpath->fifoh);
4056 exit:
4057 return status;
4058 }
4059
4060 /*
4061 * __vxge_hw_vpath_prc_configure
4062 * This routine configures the prc registers of virtual path using the config
4063 * passed
4064 */
4065 static void
__vxge_hw_vpath_prc_configure(struct __vxge_hw_device * hldev,u32 vp_id)4066 __vxge_hw_vpath_prc_configure(struct __vxge_hw_device *hldev, u32 vp_id)
4067 {
4068 u64 val64;
4069 struct __vxge_hw_virtualpath *vpath;
4070 struct vxge_hw_vp_config *vp_config;
4071 struct vxge_hw_vpath_reg __iomem *vp_reg;
4072
4073 vpath = &hldev->virtual_paths[vp_id];
4074 vp_reg = vpath->vp_reg;
4075 vp_config = vpath->vp_config;
4076
4077 if (vp_config->ring.enable == VXGE_HW_RING_DISABLE)
4078 return;
4079
4080 val64 = readq(&vp_reg->prc_cfg1);
4081 val64 |= VXGE_HW_PRC_CFG1_RTI_TINT_DISABLE;
4082 writeq(val64, &vp_reg->prc_cfg1);
4083
4084 val64 = readq(&vpath->vp_reg->prc_cfg6);
4085 val64 |= VXGE_HW_PRC_CFG6_DOORBELL_MODE_EN;
4086 writeq(val64, &vpath->vp_reg->prc_cfg6);
4087
4088 val64 = readq(&vp_reg->prc_cfg7);
4089
4090 if (vpath->vp_config->ring.scatter_mode !=
4091 VXGE_HW_RING_SCATTER_MODE_USE_FLASH_DEFAULT) {
4092
4093 val64 &= ~VXGE_HW_PRC_CFG7_SCATTER_MODE(0x3);
4094
4095 switch (vpath->vp_config->ring.scatter_mode) {
4096 case VXGE_HW_RING_SCATTER_MODE_A:
4097 val64 |= VXGE_HW_PRC_CFG7_SCATTER_MODE(
4098 VXGE_HW_PRC_CFG7_SCATTER_MODE_A);
4099 break;
4100 case VXGE_HW_RING_SCATTER_MODE_B:
4101 val64 |= VXGE_HW_PRC_CFG7_SCATTER_MODE(
4102 VXGE_HW_PRC_CFG7_SCATTER_MODE_B);
4103 break;
4104 case VXGE_HW_RING_SCATTER_MODE_C:
4105 val64 |= VXGE_HW_PRC_CFG7_SCATTER_MODE(
4106 VXGE_HW_PRC_CFG7_SCATTER_MODE_C);
4107 break;
4108 }
4109 }
4110
4111 writeq(val64, &vp_reg->prc_cfg7);
4112
4113 writeq(VXGE_HW_PRC_CFG5_RXD0_ADD(
4114 __vxge_hw_ring_first_block_address_get(
4115 vpath->ringh) >> 3), &vp_reg->prc_cfg5);
4116
4117 val64 = readq(&vp_reg->prc_cfg4);
4118 val64 |= VXGE_HW_PRC_CFG4_IN_SVC;
4119 val64 &= ~VXGE_HW_PRC_CFG4_RING_MODE(0x3);
4120
4121 val64 |= VXGE_HW_PRC_CFG4_RING_MODE(
4122 VXGE_HW_PRC_CFG4_RING_MODE_ONE_BUFFER);
4123
4124 if (hldev->config.rth_en == VXGE_HW_RTH_DISABLE)
4125 val64 |= VXGE_HW_PRC_CFG4_RTH_DISABLE;
4126 else
4127 val64 &= ~VXGE_HW_PRC_CFG4_RTH_DISABLE;
4128
4129 writeq(val64, &vp_reg->prc_cfg4);
4130 }
4131
4132 /*
4133 * __vxge_hw_vpath_kdfc_configure
4134 * This routine configures the kdfc registers of virtual path using the
4135 * config passed
4136 */
4137 static enum vxge_hw_status
__vxge_hw_vpath_kdfc_configure(struct __vxge_hw_device * hldev,u32 vp_id)4138 __vxge_hw_vpath_kdfc_configure(struct __vxge_hw_device *hldev, u32 vp_id)
4139 {
4140 u64 val64;
4141 u64 vpath_stride;
4142 enum vxge_hw_status status = VXGE_HW_OK;
4143 struct __vxge_hw_virtualpath *vpath;
4144 struct vxge_hw_vpath_reg __iomem *vp_reg;
4145
4146 vpath = &hldev->virtual_paths[vp_id];
4147 vp_reg = vpath->vp_reg;
4148 status = __vxge_hw_kdfc_swapper_set(hldev->legacy_reg, vp_reg);
4149
4150 if (status != VXGE_HW_OK)
4151 goto exit;
4152
4153 val64 = readq(&vp_reg->kdfc_drbl_triplet_total);
4154
4155 vpath->max_kdfc_db =
4156 (u32)VXGE_HW_KDFC_DRBL_TRIPLET_TOTAL_GET_KDFC_MAX_SIZE(
4157 val64+1)/2;
4158
4159 if (vpath->vp_config->fifo.enable == VXGE_HW_FIFO_ENABLE) {
4160
4161 vpath->max_nofl_db = vpath->max_kdfc_db;
4162
4163 if (vpath->max_nofl_db <
4164 ((vpath->vp_config->fifo.memblock_size /
4165 (vpath->vp_config->fifo.max_frags *
4166 sizeof(struct vxge_hw_fifo_txd))) *
4167 vpath->vp_config->fifo.fifo_blocks)) {
4168
4169 return VXGE_HW_BADCFG_FIFO_BLOCKS;
4170 }
4171 val64 = VXGE_HW_KDFC_FIFO_TRPL_PARTITION_LENGTH_0(
4172 (vpath->max_nofl_db*2)-1);
4173 }
4174
4175 writeq(val64, &vp_reg->kdfc_fifo_trpl_partition);
4176
4177 writeq(VXGE_HW_KDFC_FIFO_TRPL_CTRL_TRIPLET_ENABLE,
4178 &vp_reg->kdfc_fifo_trpl_ctrl);
4179
4180 val64 = readq(&vp_reg->kdfc_trpl_fifo_0_ctrl);
4181
4182 val64 &= ~(VXGE_HW_KDFC_TRPL_FIFO_0_CTRL_MODE(0x3) |
4183 VXGE_HW_KDFC_TRPL_FIFO_0_CTRL_SELECT(0xFF));
4184
4185 val64 |= VXGE_HW_KDFC_TRPL_FIFO_0_CTRL_MODE(
4186 VXGE_HW_KDFC_TRPL_FIFO_0_CTRL_MODE_NON_OFFLOAD_ONLY) |
4187 #ifndef __BIG_ENDIAN
4188 VXGE_HW_KDFC_TRPL_FIFO_0_CTRL_SWAP_EN |
4189 #endif
4190 VXGE_HW_KDFC_TRPL_FIFO_0_CTRL_SELECT(0);
4191
4192 writeq(val64, &vp_reg->kdfc_trpl_fifo_0_ctrl);
4193 writeq((u64)0, &vp_reg->kdfc_trpl_fifo_0_wb_address);
4194 wmb();
4195 vpath_stride = readq(&hldev->toc_reg->toc_kdfc_vpath_stride);
4196
4197 vpath->nofl_db =
4198 (struct __vxge_hw_non_offload_db_wrapper __iomem *)
4199 (hldev->kdfc + (vp_id *
4200 VXGE_HW_TOC_KDFC_VPATH_STRIDE_GET_TOC_KDFC_VPATH_STRIDE(
4201 vpath_stride)));
4202 exit:
4203 return status;
4204 }
4205
4206 /*
4207 * __vxge_hw_vpath_mac_configure
4208 * This routine configures the mac of virtual path using the config passed
4209 */
4210 static enum vxge_hw_status
__vxge_hw_vpath_mac_configure(struct __vxge_hw_device * hldev,u32 vp_id)4211 __vxge_hw_vpath_mac_configure(struct __vxge_hw_device *hldev, u32 vp_id)
4212 {
4213 u64 val64;
4214 struct __vxge_hw_virtualpath *vpath;
4215 struct vxge_hw_vp_config *vp_config;
4216 struct vxge_hw_vpath_reg __iomem *vp_reg;
4217
4218 vpath = &hldev->virtual_paths[vp_id];
4219 vp_reg = vpath->vp_reg;
4220 vp_config = vpath->vp_config;
4221
4222 writeq(VXGE_HW_XMAC_VSPORT_CHOICE_VSPORT_NUMBER(
4223 vpath->vsport_number), &vp_reg->xmac_vsport_choice);
4224
4225 if (vp_config->ring.enable == VXGE_HW_RING_ENABLE) {
4226
4227 val64 = readq(&vp_reg->xmac_rpa_vcfg);
4228
4229 if (vp_config->rpa_strip_vlan_tag !=
4230 VXGE_HW_VPATH_RPA_STRIP_VLAN_TAG_USE_FLASH_DEFAULT) {
4231 if (vp_config->rpa_strip_vlan_tag)
4232 val64 |= VXGE_HW_XMAC_RPA_VCFG_STRIP_VLAN_TAG;
4233 else
4234 val64 &= ~VXGE_HW_XMAC_RPA_VCFG_STRIP_VLAN_TAG;
4235 }
4236
4237 writeq(val64, &vp_reg->xmac_rpa_vcfg);
4238 val64 = readq(&vp_reg->rxmac_vcfg0);
4239
4240 if (vp_config->mtu !=
4241 VXGE_HW_VPATH_USE_FLASH_DEFAULT_INITIAL_MTU) {
4242 val64 &= ~VXGE_HW_RXMAC_VCFG0_RTS_MAX_FRM_LEN(0x3fff);
4243 if ((vp_config->mtu +
4244 VXGE_HW_MAC_HEADER_MAX_SIZE) < vpath->max_mtu)
4245 val64 |= VXGE_HW_RXMAC_VCFG0_RTS_MAX_FRM_LEN(
4246 vp_config->mtu +
4247 VXGE_HW_MAC_HEADER_MAX_SIZE);
4248 else
4249 val64 |= VXGE_HW_RXMAC_VCFG0_RTS_MAX_FRM_LEN(
4250 vpath->max_mtu);
4251 }
4252
4253 writeq(val64, &vp_reg->rxmac_vcfg0);
4254
4255 val64 = readq(&vp_reg->rxmac_vcfg1);
4256
4257 val64 &= ~(VXGE_HW_RXMAC_VCFG1_RTS_RTH_MULTI_IT_BD_MODE(0x3) |
4258 VXGE_HW_RXMAC_VCFG1_RTS_RTH_MULTI_IT_EN_MODE);
4259
4260 if (hldev->config.rth_it_type ==
4261 VXGE_HW_RTH_IT_TYPE_MULTI_IT) {
4262 val64 |= VXGE_HW_RXMAC_VCFG1_RTS_RTH_MULTI_IT_BD_MODE(
4263 0x2) |
4264 VXGE_HW_RXMAC_VCFG1_RTS_RTH_MULTI_IT_EN_MODE;
4265 }
4266
4267 writeq(val64, &vp_reg->rxmac_vcfg1);
4268 }
4269 return VXGE_HW_OK;
4270 }
4271
4272 /*
4273 * __vxge_hw_vpath_tim_configure
4274 * This routine configures the tim registers of virtual path using the config
4275 * passed
4276 */
4277 static enum vxge_hw_status
__vxge_hw_vpath_tim_configure(struct __vxge_hw_device * hldev,u32 vp_id)4278 __vxge_hw_vpath_tim_configure(struct __vxge_hw_device *hldev, u32 vp_id)
4279 {
4280 u64 val64;
4281 struct __vxge_hw_virtualpath *vpath;
4282 struct vxge_hw_vpath_reg __iomem *vp_reg;
4283 struct vxge_hw_vp_config *config;
4284
4285 vpath = &hldev->virtual_paths[vp_id];
4286 vp_reg = vpath->vp_reg;
4287 config = vpath->vp_config;
4288
4289 writeq(0, &vp_reg->tim_dest_addr);
4290 writeq(0, &vp_reg->tim_vpath_map);
4291 writeq(0, &vp_reg->tim_bitmap);
4292 writeq(0, &vp_reg->tim_remap);
4293
4294 if (config->ring.enable == VXGE_HW_RING_ENABLE)
4295 writeq(VXGE_HW_TIM_RING_ASSN_INT_NUM(
4296 (vp_id * VXGE_HW_MAX_INTR_PER_VP) +
4297 VXGE_HW_VPATH_INTR_RX), &vp_reg->tim_ring_assn);
4298
4299 val64 = readq(&vp_reg->tim_pci_cfg);
4300 val64 |= VXGE_HW_TIM_PCI_CFG_ADD_PAD;
4301 writeq(val64, &vp_reg->tim_pci_cfg);
4302
4303 if (config->fifo.enable == VXGE_HW_FIFO_ENABLE) {
4304
4305 val64 = readq(&vp_reg->tim_cfg1_int_num[VXGE_HW_VPATH_INTR_TX]);
4306
4307 if (config->tti.btimer_val != VXGE_HW_USE_FLASH_DEFAULT) {
4308 val64 &= ~VXGE_HW_TIM_CFG1_INT_NUM_BTIMER_VAL(
4309 0x3ffffff);
4310 val64 |= VXGE_HW_TIM_CFG1_INT_NUM_BTIMER_VAL(
4311 config->tti.btimer_val);
4312 }
4313
4314 val64 &= ~VXGE_HW_TIM_CFG1_INT_NUM_BITMP_EN;
4315
4316 if (config->tti.timer_ac_en != VXGE_HW_USE_FLASH_DEFAULT) {
4317 if (config->tti.timer_ac_en)
4318 val64 |= VXGE_HW_TIM_CFG1_INT_NUM_TIMER_AC;
4319 else
4320 val64 &= ~VXGE_HW_TIM_CFG1_INT_NUM_TIMER_AC;
4321 }
4322
4323 if (config->tti.timer_ci_en != VXGE_HW_USE_FLASH_DEFAULT) {
4324 if (config->tti.timer_ci_en)
4325 val64 |= VXGE_HW_TIM_CFG1_INT_NUM_TIMER_CI;
4326 else
4327 val64 &= ~VXGE_HW_TIM_CFG1_INT_NUM_TIMER_CI;
4328 }
4329
4330 if (config->tti.urange_a != VXGE_HW_USE_FLASH_DEFAULT) {
4331 val64 &= ~VXGE_HW_TIM_CFG1_INT_NUM_URNG_A(0x3f);
4332 val64 |= VXGE_HW_TIM_CFG1_INT_NUM_URNG_A(
4333 config->tti.urange_a);
4334 }
4335
4336 if (config->tti.urange_b != VXGE_HW_USE_FLASH_DEFAULT) {
4337 val64 &= ~VXGE_HW_TIM_CFG1_INT_NUM_URNG_B(0x3f);
4338 val64 |= VXGE_HW_TIM_CFG1_INT_NUM_URNG_B(
4339 config->tti.urange_b);
4340 }
4341
4342 if (config->tti.urange_c != VXGE_HW_USE_FLASH_DEFAULT) {
4343 val64 &= ~VXGE_HW_TIM_CFG1_INT_NUM_URNG_C(0x3f);
4344 val64 |= VXGE_HW_TIM_CFG1_INT_NUM_URNG_C(
4345 config->tti.urange_c);
4346 }
4347
4348 writeq(val64, &vp_reg->tim_cfg1_int_num[VXGE_HW_VPATH_INTR_TX]);
4349 vpath->tim_tti_cfg1_saved = val64;
4350
4351 val64 = readq(&vp_reg->tim_cfg2_int_num[VXGE_HW_VPATH_INTR_TX]);
4352
4353 if (config->tti.uec_a != VXGE_HW_USE_FLASH_DEFAULT) {
4354 val64 &= ~VXGE_HW_TIM_CFG2_INT_NUM_UEC_A(0xffff);
4355 val64 |= VXGE_HW_TIM_CFG2_INT_NUM_UEC_A(
4356 config->tti.uec_a);
4357 }
4358
4359 if (config->tti.uec_b != VXGE_HW_USE_FLASH_DEFAULT) {
4360 val64 &= ~VXGE_HW_TIM_CFG2_INT_NUM_UEC_B(0xffff);
4361 val64 |= VXGE_HW_TIM_CFG2_INT_NUM_UEC_B(
4362 config->tti.uec_b);
4363 }
4364
4365 if (config->tti.uec_c != VXGE_HW_USE_FLASH_DEFAULT) {
4366 val64 &= ~VXGE_HW_TIM_CFG2_INT_NUM_UEC_C(0xffff);
4367 val64 |= VXGE_HW_TIM_CFG2_INT_NUM_UEC_C(
4368 config->tti.uec_c);
4369 }
4370
4371 if (config->tti.uec_d != VXGE_HW_USE_FLASH_DEFAULT) {
4372 val64 &= ~VXGE_HW_TIM_CFG2_INT_NUM_UEC_D(0xffff);
4373 val64 |= VXGE_HW_TIM_CFG2_INT_NUM_UEC_D(
4374 config->tti.uec_d);
4375 }
4376
4377 writeq(val64, &vp_reg->tim_cfg2_int_num[VXGE_HW_VPATH_INTR_TX]);
4378 val64 = readq(&vp_reg->tim_cfg3_int_num[VXGE_HW_VPATH_INTR_TX]);
4379
4380 if (config->tti.timer_ri_en != VXGE_HW_USE_FLASH_DEFAULT) {
4381 if (config->tti.timer_ri_en)
4382 val64 |= VXGE_HW_TIM_CFG3_INT_NUM_TIMER_RI;
4383 else
4384 val64 &= ~VXGE_HW_TIM_CFG3_INT_NUM_TIMER_RI;
4385 }
4386
4387 if (config->tti.rtimer_val != VXGE_HW_USE_FLASH_DEFAULT) {
4388 val64 &= ~VXGE_HW_TIM_CFG3_INT_NUM_RTIMER_VAL(
4389 0x3ffffff);
4390 val64 |= VXGE_HW_TIM_CFG3_INT_NUM_RTIMER_VAL(
4391 config->tti.rtimer_val);
4392 }
4393
4394 if (config->tti.util_sel != VXGE_HW_USE_FLASH_DEFAULT) {
4395 val64 &= ~VXGE_HW_TIM_CFG3_INT_NUM_UTIL_SEL(0x3f);
4396 val64 |= VXGE_HW_TIM_CFG3_INT_NUM_UTIL_SEL(vp_id);
4397 }
4398
4399 if (config->tti.ltimer_val != VXGE_HW_USE_FLASH_DEFAULT) {
4400 val64 &= ~VXGE_HW_TIM_CFG3_INT_NUM_LTIMER_VAL(
4401 0x3ffffff);
4402 val64 |= VXGE_HW_TIM_CFG3_INT_NUM_LTIMER_VAL(
4403 config->tti.ltimer_val);
4404 }
4405
4406 writeq(val64, &vp_reg->tim_cfg3_int_num[VXGE_HW_VPATH_INTR_TX]);
4407 vpath->tim_tti_cfg3_saved = val64;
4408 }
4409
4410 if (config->ring.enable == VXGE_HW_RING_ENABLE) {
4411
4412 val64 = readq(&vp_reg->tim_cfg1_int_num[VXGE_HW_VPATH_INTR_RX]);
4413
4414 if (config->rti.btimer_val != VXGE_HW_USE_FLASH_DEFAULT) {
4415 val64 &= ~VXGE_HW_TIM_CFG1_INT_NUM_BTIMER_VAL(
4416 0x3ffffff);
4417 val64 |= VXGE_HW_TIM_CFG1_INT_NUM_BTIMER_VAL(
4418 config->rti.btimer_val);
4419 }
4420
4421 val64 &= ~VXGE_HW_TIM_CFG1_INT_NUM_BITMP_EN;
4422
4423 if (config->rti.timer_ac_en != VXGE_HW_USE_FLASH_DEFAULT) {
4424 if (config->rti.timer_ac_en)
4425 val64 |= VXGE_HW_TIM_CFG1_INT_NUM_TIMER_AC;
4426 else
4427 val64 &= ~VXGE_HW_TIM_CFG1_INT_NUM_TIMER_AC;
4428 }
4429
4430 if (config->rti.timer_ci_en != VXGE_HW_USE_FLASH_DEFAULT) {
4431 if (config->rti.timer_ci_en)
4432 val64 |= VXGE_HW_TIM_CFG1_INT_NUM_TIMER_CI;
4433 else
4434 val64 &= ~VXGE_HW_TIM_CFG1_INT_NUM_TIMER_CI;
4435 }
4436
4437 if (config->rti.urange_a != VXGE_HW_USE_FLASH_DEFAULT) {
4438 val64 &= ~VXGE_HW_TIM_CFG1_INT_NUM_URNG_A(0x3f);
4439 val64 |= VXGE_HW_TIM_CFG1_INT_NUM_URNG_A(
4440 config->rti.urange_a);
4441 }
4442
4443 if (config->rti.urange_b != VXGE_HW_USE_FLASH_DEFAULT) {
4444 val64 &= ~VXGE_HW_TIM_CFG1_INT_NUM_URNG_B(0x3f);
4445 val64 |= VXGE_HW_TIM_CFG1_INT_NUM_URNG_B(
4446 config->rti.urange_b);
4447 }
4448
4449 if (config->rti.urange_c != VXGE_HW_USE_FLASH_DEFAULT) {
4450 val64 &= ~VXGE_HW_TIM_CFG1_INT_NUM_URNG_C(0x3f);
4451 val64 |= VXGE_HW_TIM_CFG1_INT_NUM_URNG_C(
4452 config->rti.urange_c);
4453 }
4454
4455 writeq(val64, &vp_reg->tim_cfg1_int_num[VXGE_HW_VPATH_INTR_RX]);
4456 vpath->tim_rti_cfg1_saved = val64;
4457
4458 val64 = readq(&vp_reg->tim_cfg2_int_num[VXGE_HW_VPATH_INTR_RX]);
4459
4460 if (config->rti.uec_a != VXGE_HW_USE_FLASH_DEFAULT) {
4461 val64 &= ~VXGE_HW_TIM_CFG2_INT_NUM_UEC_A(0xffff);
4462 val64 |= VXGE_HW_TIM_CFG2_INT_NUM_UEC_A(
4463 config->rti.uec_a);
4464 }
4465
4466 if (config->rti.uec_b != VXGE_HW_USE_FLASH_DEFAULT) {
4467 val64 &= ~VXGE_HW_TIM_CFG2_INT_NUM_UEC_B(0xffff);
4468 val64 |= VXGE_HW_TIM_CFG2_INT_NUM_UEC_B(
4469 config->rti.uec_b);
4470 }
4471
4472 if (config->rti.uec_c != VXGE_HW_USE_FLASH_DEFAULT) {
4473 val64 &= ~VXGE_HW_TIM_CFG2_INT_NUM_UEC_C(0xffff);
4474 val64 |= VXGE_HW_TIM_CFG2_INT_NUM_UEC_C(
4475 config->rti.uec_c);
4476 }
4477
4478 if (config->rti.uec_d != VXGE_HW_USE_FLASH_DEFAULT) {
4479 val64 &= ~VXGE_HW_TIM_CFG2_INT_NUM_UEC_D(0xffff);
4480 val64 |= VXGE_HW_TIM_CFG2_INT_NUM_UEC_D(
4481 config->rti.uec_d);
4482 }
4483
4484 writeq(val64, &vp_reg->tim_cfg2_int_num[VXGE_HW_VPATH_INTR_RX]);
4485 val64 = readq(&vp_reg->tim_cfg3_int_num[VXGE_HW_VPATH_INTR_RX]);
4486
4487 if (config->rti.timer_ri_en != VXGE_HW_USE_FLASH_DEFAULT) {
4488 if (config->rti.timer_ri_en)
4489 val64 |= VXGE_HW_TIM_CFG3_INT_NUM_TIMER_RI;
4490 else
4491 val64 &= ~VXGE_HW_TIM_CFG3_INT_NUM_TIMER_RI;
4492 }
4493
4494 if (config->rti.rtimer_val != VXGE_HW_USE_FLASH_DEFAULT) {
4495 val64 &= ~VXGE_HW_TIM_CFG3_INT_NUM_RTIMER_VAL(
4496 0x3ffffff);
4497 val64 |= VXGE_HW_TIM_CFG3_INT_NUM_RTIMER_VAL(
4498 config->rti.rtimer_val);
4499 }
4500
4501 if (config->rti.util_sel != VXGE_HW_USE_FLASH_DEFAULT) {
4502 val64 &= ~VXGE_HW_TIM_CFG3_INT_NUM_UTIL_SEL(0x3f);
4503 val64 |= VXGE_HW_TIM_CFG3_INT_NUM_UTIL_SEL(vp_id);
4504 }
4505
4506 if (config->rti.ltimer_val != VXGE_HW_USE_FLASH_DEFAULT) {
4507 val64 &= ~VXGE_HW_TIM_CFG3_INT_NUM_LTIMER_VAL(
4508 0x3ffffff);
4509 val64 |= VXGE_HW_TIM_CFG3_INT_NUM_LTIMER_VAL(
4510 config->rti.ltimer_val);
4511 }
4512
4513 writeq(val64, &vp_reg->tim_cfg3_int_num[VXGE_HW_VPATH_INTR_RX]);
4514 vpath->tim_rti_cfg3_saved = val64;
4515 }
4516
4517 val64 = 0;
4518 writeq(val64, &vp_reg->tim_cfg1_int_num[VXGE_HW_VPATH_INTR_EINTA]);
4519 writeq(val64, &vp_reg->tim_cfg2_int_num[VXGE_HW_VPATH_INTR_EINTA]);
4520 writeq(val64, &vp_reg->tim_cfg3_int_num[VXGE_HW_VPATH_INTR_EINTA]);
4521 writeq(val64, &vp_reg->tim_cfg1_int_num[VXGE_HW_VPATH_INTR_BMAP]);
4522 writeq(val64, &vp_reg->tim_cfg2_int_num[VXGE_HW_VPATH_INTR_BMAP]);
4523 writeq(val64, &vp_reg->tim_cfg3_int_num[VXGE_HW_VPATH_INTR_BMAP]);
4524
4525 val64 = VXGE_HW_TIM_WRKLD_CLC_WRKLD_EVAL_PRD(150);
4526 val64 |= VXGE_HW_TIM_WRKLD_CLC_WRKLD_EVAL_DIV(0);
4527 val64 |= VXGE_HW_TIM_WRKLD_CLC_CNT_RX_TX(3);
4528 writeq(val64, &vp_reg->tim_wrkld_clc);
4529
4530 return VXGE_HW_OK;
4531 }
4532
4533 /*
4534 * __vxge_hw_vpath_initialize
4535 * This routine is the final phase of init which initializes the
4536 * registers of the vpath using the configuration passed.
4537 */
4538 static enum vxge_hw_status
__vxge_hw_vpath_initialize(struct __vxge_hw_device * hldev,u32 vp_id)4539 __vxge_hw_vpath_initialize(struct __vxge_hw_device *hldev, u32 vp_id)
4540 {
4541 u64 val64;
4542 u32 val32;
4543 enum vxge_hw_status status = VXGE_HW_OK;
4544 struct __vxge_hw_virtualpath *vpath;
4545 struct vxge_hw_vpath_reg __iomem *vp_reg;
4546
4547 vpath = &hldev->virtual_paths[vp_id];
4548
4549 if (!(hldev->vpath_assignments & vxge_mBIT(vp_id))) {
4550 status = VXGE_HW_ERR_VPATH_NOT_AVAILABLE;
4551 goto exit;
4552 }
4553 vp_reg = vpath->vp_reg;
4554
4555 status = __vxge_hw_vpath_swapper_set(vpath->vp_reg);
4556 if (status != VXGE_HW_OK)
4557 goto exit;
4558
4559 status = __vxge_hw_vpath_mac_configure(hldev, vp_id);
4560 if (status != VXGE_HW_OK)
4561 goto exit;
4562
4563 status = __vxge_hw_vpath_kdfc_configure(hldev, vp_id);
4564 if (status != VXGE_HW_OK)
4565 goto exit;
4566
4567 status = __vxge_hw_vpath_tim_configure(hldev, vp_id);
4568 if (status != VXGE_HW_OK)
4569 goto exit;
4570
4571 val64 = readq(&vp_reg->rtdma_rd_optimization_ctrl);
4572
4573 /* Get MRRS value from device control */
4574 status = __vxge_hw_vpath_pci_read(vpath, 1, 0x78, &val32);
4575 if (status == VXGE_HW_OK) {
4576 val32 = (val32 & VXGE_HW_PCI_EXP_DEVCTL_READRQ) >> 12;
4577 val64 &=
4578 ~(VXGE_HW_RTDMA_RD_OPTIMIZATION_CTRL_FB_FILL_THRESH(7));
4579 val64 |=
4580 VXGE_HW_RTDMA_RD_OPTIMIZATION_CTRL_FB_FILL_THRESH(val32);
4581
4582 val64 |= VXGE_HW_RTDMA_RD_OPTIMIZATION_CTRL_FB_WAIT_FOR_SPACE;
4583 }
4584
4585 val64 &= ~(VXGE_HW_RTDMA_RD_OPTIMIZATION_CTRL_FB_ADDR_BDRY(7));
4586 val64 |=
4587 VXGE_HW_RTDMA_RD_OPTIMIZATION_CTRL_FB_ADDR_BDRY(
4588 VXGE_HW_MAX_PAYLOAD_SIZE_512);
4589
4590 val64 |= VXGE_HW_RTDMA_RD_OPTIMIZATION_CTRL_FB_ADDR_BDRY_EN;
4591 writeq(val64, &vp_reg->rtdma_rd_optimization_ctrl);
4592
4593 exit:
4594 return status;
4595 }
4596
4597 /*
4598 * __vxge_hw_vp_terminate - Terminate Virtual Path structure
4599 * This routine closes all channels it opened and freeup memory
4600 */
__vxge_hw_vp_terminate(struct __vxge_hw_device * hldev,u32 vp_id)4601 static void __vxge_hw_vp_terminate(struct __vxge_hw_device *hldev, u32 vp_id)
4602 {
4603 struct __vxge_hw_virtualpath *vpath;
4604
4605 vpath = &hldev->virtual_paths[vp_id];
4606
4607 if (vpath->vp_open == VXGE_HW_VP_NOT_OPEN)
4608 goto exit;
4609
4610 VXGE_HW_DEVICE_TIM_INT_MASK_RESET(vpath->hldev->tim_int_mask0,
4611 vpath->hldev->tim_int_mask1, vpath->vp_id);
4612 hldev->stats.hw_dev_info_stats.vpath_info[vpath->vp_id] = NULL;
4613
4614 /* If the whole struct __vxge_hw_virtualpath is zeroed, nothing will
4615 * work after the interface is brought down.
4616 */
4617 spin_lock(&vpath->lock);
4618 vpath->vp_open = VXGE_HW_VP_NOT_OPEN;
4619 spin_unlock(&vpath->lock);
4620
4621 vpath->vpmgmt_reg = NULL;
4622 vpath->nofl_db = NULL;
4623 vpath->max_mtu = 0;
4624 vpath->vsport_number = 0;
4625 vpath->max_kdfc_db = 0;
4626 vpath->max_nofl_db = 0;
4627 vpath->ringh = NULL;
4628 vpath->fifoh = NULL;
4629 memset(&vpath->vpath_handles, 0, sizeof(struct list_head));
4630 vpath->stats_block = NULL;
4631 vpath->hw_stats = NULL;
4632 vpath->hw_stats_sav = NULL;
4633 vpath->sw_stats = NULL;
4634
4635 exit:
4636 return;
4637 }
4638
4639 /*
4640 * __vxge_hw_vp_initialize - Initialize Virtual Path structure
4641 * This routine is the initial phase of init which resets the vpath and
4642 * initializes the software support structures.
4643 */
4644 static enum vxge_hw_status
__vxge_hw_vp_initialize(struct __vxge_hw_device * hldev,u32 vp_id,struct vxge_hw_vp_config * config)4645 __vxge_hw_vp_initialize(struct __vxge_hw_device *hldev, u32 vp_id,
4646 struct vxge_hw_vp_config *config)
4647 {
4648 struct __vxge_hw_virtualpath *vpath;
4649 enum vxge_hw_status status = VXGE_HW_OK;
4650
4651 if (!(hldev->vpath_assignments & vxge_mBIT(vp_id))) {
4652 status = VXGE_HW_ERR_VPATH_NOT_AVAILABLE;
4653 goto exit;
4654 }
4655
4656 vpath = &hldev->virtual_paths[vp_id];
4657
4658 spin_lock_init(&vpath->lock);
4659 vpath->vp_id = vp_id;
4660 vpath->vp_open = VXGE_HW_VP_OPEN;
4661 vpath->hldev = hldev;
4662 vpath->vp_config = config;
4663 vpath->vp_reg = hldev->vpath_reg[vp_id];
4664 vpath->vpmgmt_reg = hldev->vpmgmt_reg[vp_id];
4665
4666 __vxge_hw_vpath_reset(hldev, vp_id);
4667
4668 status = __vxge_hw_vpath_reset_check(vpath);
4669 if (status != VXGE_HW_OK) {
4670 memset(vpath, 0, sizeof(struct __vxge_hw_virtualpath));
4671 goto exit;
4672 }
4673
4674 status = __vxge_hw_vpath_mgmt_read(hldev, vpath);
4675 if (status != VXGE_HW_OK) {
4676 memset(vpath, 0, sizeof(struct __vxge_hw_virtualpath));
4677 goto exit;
4678 }
4679
4680 INIT_LIST_HEAD(&vpath->vpath_handles);
4681
4682 vpath->sw_stats = &hldev->stats.sw_dev_info_stats.vpath_info[vp_id];
4683
4684 VXGE_HW_DEVICE_TIM_INT_MASK_SET(hldev->tim_int_mask0,
4685 hldev->tim_int_mask1, vp_id);
4686
4687 status = __vxge_hw_vpath_initialize(hldev, vp_id);
4688 if (status != VXGE_HW_OK)
4689 __vxge_hw_vp_terminate(hldev, vp_id);
4690 exit:
4691 return status;
4692 }
4693
4694 /*
4695 * vxge_hw_vpath_mtu_set - Set MTU.
4696 * Set new MTU value. Example, to use jumbo frames:
4697 * vxge_hw_vpath_mtu_set(my_device, 9600);
4698 */
4699 enum vxge_hw_status
vxge_hw_vpath_mtu_set(struct __vxge_hw_vpath_handle * vp,u32 new_mtu)4700 vxge_hw_vpath_mtu_set(struct __vxge_hw_vpath_handle *vp, u32 new_mtu)
4701 {
4702 u64 val64;
4703 enum vxge_hw_status status = VXGE_HW_OK;
4704 struct __vxge_hw_virtualpath *vpath;
4705
4706 if (vp == NULL) {
4707 status = VXGE_HW_ERR_INVALID_HANDLE;
4708 goto exit;
4709 }
4710 vpath = vp->vpath;
4711
4712 new_mtu += VXGE_HW_MAC_HEADER_MAX_SIZE;
4713
4714 if ((new_mtu < VXGE_HW_MIN_MTU) || (new_mtu > vpath->max_mtu))
4715 status = VXGE_HW_ERR_INVALID_MTU_SIZE;
4716
4717 val64 = readq(&vpath->vp_reg->rxmac_vcfg0);
4718
4719 val64 &= ~VXGE_HW_RXMAC_VCFG0_RTS_MAX_FRM_LEN(0x3fff);
4720 val64 |= VXGE_HW_RXMAC_VCFG0_RTS_MAX_FRM_LEN(new_mtu);
4721
4722 writeq(val64, &vpath->vp_reg->rxmac_vcfg0);
4723
4724 vpath->vp_config->mtu = new_mtu - VXGE_HW_MAC_HEADER_MAX_SIZE;
4725
4726 exit:
4727 return status;
4728 }
4729
4730 /*
4731 * vxge_hw_vpath_stats_enable - Enable vpath h/wstatistics.
4732 * Enable the DMA vpath statistics. The function is to be called to re-enable
4733 * the adapter to update stats into the host memory
4734 */
4735 static enum vxge_hw_status
vxge_hw_vpath_stats_enable(struct __vxge_hw_vpath_handle * vp)4736 vxge_hw_vpath_stats_enable(struct __vxge_hw_vpath_handle *vp)
4737 {
4738 enum vxge_hw_status status = VXGE_HW_OK;
4739 struct __vxge_hw_virtualpath *vpath;
4740
4741 vpath = vp->vpath;
4742
4743 if (vpath->vp_open == VXGE_HW_VP_NOT_OPEN) {
4744 status = VXGE_HW_ERR_VPATH_NOT_OPEN;
4745 goto exit;
4746 }
4747
4748 memcpy(vpath->hw_stats_sav, vpath->hw_stats,
4749 sizeof(struct vxge_hw_vpath_stats_hw_info));
4750
4751 status = __vxge_hw_vpath_stats_get(vpath, vpath->hw_stats);
4752 exit:
4753 return status;
4754 }
4755
4756 /*
4757 * __vxge_hw_blockpool_block_allocate - Allocates a block from block pool
4758 * This function allocates a block from block pool or from the system
4759 */
4760 static struct __vxge_hw_blockpool_entry *
__vxge_hw_blockpool_block_allocate(struct __vxge_hw_device * devh,u32 size)4761 __vxge_hw_blockpool_block_allocate(struct __vxge_hw_device *devh, u32 size)
4762 {
4763 struct __vxge_hw_blockpool_entry *entry = NULL;
4764 struct __vxge_hw_blockpool *blockpool;
4765
4766 blockpool = &devh->block_pool;
4767
4768 if (size == blockpool->block_size) {
4769
4770 if (!list_empty(&blockpool->free_block_list))
4771 entry = (struct __vxge_hw_blockpool_entry *)
4772 list_first_entry(&blockpool->free_block_list,
4773 struct __vxge_hw_blockpool_entry,
4774 item);
4775
4776 if (entry != NULL) {
4777 list_del(&entry->item);
4778 blockpool->pool_size--;
4779 }
4780 }
4781
4782 if (entry != NULL)
4783 __vxge_hw_blockpool_blocks_add(blockpool);
4784
4785 return entry;
4786 }
4787
4788 /*
4789 * vxge_hw_vpath_open - Open a virtual path on a given adapter
4790 * This function is used to open access to virtual path of an
4791 * adapter for offload, GRO operations. This function returns
4792 * synchronously.
4793 */
4794 enum vxge_hw_status
vxge_hw_vpath_open(struct __vxge_hw_device * hldev,struct vxge_hw_vpath_attr * attr,struct __vxge_hw_vpath_handle ** vpath_handle)4795 vxge_hw_vpath_open(struct __vxge_hw_device *hldev,
4796 struct vxge_hw_vpath_attr *attr,
4797 struct __vxge_hw_vpath_handle **vpath_handle)
4798 {
4799 struct __vxge_hw_virtualpath *vpath;
4800 struct __vxge_hw_vpath_handle *vp;
4801 enum vxge_hw_status status;
4802
4803 vpath = &hldev->virtual_paths[attr->vp_id];
4804
4805 if (vpath->vp_open == VXGE_HW_VP_OPEN) {
4806 status = VXGE_HW_ERR_INVALID_STATE;
4807 goto vpath_open_exit1;
4808 }
4809
4810 status = __vxge_hw_vp_initialize(hldev, attr->vp_id,
4811 &hldev->config.vp_config[attr->vp_id]);
4812 if (status != VXGE_HW_OK)
4813 goto vpath_open_exit1;
4814
4815 vp = vzalloc(sizeof(struct __vxge_hw_vpath_handle));
4816 if (vp == NULL) {
4817 status = VXGE_HW_ERR_OUT_OF_MEMORY;
4818 goto vpath_open_exit2;
4819 }
4820
4821 vp->vpath = vpath;
4822
4823 if (vpath->vp_config->fifo.enable == VXGE_HW_FIFO_ENABLE) {
4824 status = __vxge_hw_fifo_create(vp, &attr->fifo_attr);
4825 if (status != VXGE_HW_OK)
4826 goto vpath_open_exit6;
4827 }
4828
4829 if (vpath->vp_config->ring.enable == VXGE_HW_RING_ENABLE) {
4830 status = __vxge_hw_ring_create(vp, &attr->ring_attr);
4831 if (status != VXGE_HW_OK)
4832 goto vpath_open_exit7;
4833
4834 __vxge_hw_vpath_prc_configure(hldev, attr->vp_id);
4835 }
4836
4837 vpath->fifoh->tx_intr_num =
4838 (attr->vp_id * VXGE_HW_MAX_INTR_PER_VP) +
4839 VXGE_HW_VPATH_INTR_TX;
4840
4841 vpath->stats_block = __vxge_hw_blockpool_block_allocate(hldev,
4842 VXGE_HW_BLOCK_SIZE);
4843 if (vpath->stats_block == NULL) {
4844 status = VXGE_HW_ERR_OUT_OF_MEMORY;
4845 goto vpath_open_exit8;
4846 }
4847
4848 vpath->hw_stats = vpath->stats_block->memblock;
4849 memset(vpath->hw_stats, 0,
4850 sizeof(struct vxge_hw_vpath_stats_hw_info));
4851
4852 hldev->stats.hw_dev_info_stats.vpath_info[attr->vp_id] =
4853 vpath->hw_stats;
4854
4855 vpath->hw_stats_sav =
4856 &hldev->stats.hw_dev_info_stats.vpath_info_sav[attr->vp_id];
4857 memset(vpath->hw_stats_sav, 0,
4858 sizeof(struct vxge_hw_vpath_stats_hw_info));
4859
4860 writeq(vpath->stats_block->dma_addr, &vpath->vp_reg->stats_cfg);
4861
4862 status = vxge_hw_vpath_stats_enable(vp);
4863 if (status != VXGE_HW_OK)
4864 goto vpath_open_exit8;
4865
4866 list_add(&vp->item, &vpath->vpath_handles);
4867
4868 hldev->vpaths_deployed |= vxge_mBIT(vpath->vp_id);
4869
4870 *vpath_handle = vp;
4871
4872 attr->fifo_attr.userdata = vpath->fifoh;
4873 attr->ring_attr.userdata = vpath->ringh;
4874
4875 return VXGE_HW_OK;
4876
4877 vpath_open_exit8:
4878 if (vpath->ringh != NULL)
4879 __vxge_hw_ring_delete(vp);
4880 vpath_open_exit7:
4881 if (vpath->fifoh != NULL)
4882 __vxge_hw_fifo_delete(vp);
4883 vpath_open_exit6:
4884 vfree(vp);
4885 vpath_open_exit2:
4886 __vxge_hw_vp_terminate(hldev, attr->vp_id);
4887 vpath_open_exit1:
4888
4889 return status;
4890 }
4891
4892 /**
4893 * vxge_hw_vpath_rx_doorbell_post - Close the handle got from previous vpath
4894 * (vpath) open
4895 * @vp: Handle got from previous vpath open
4896 *
4897 * This function is used to close access to virtual path opened
4898 * earlier.
4899 */
vxge_hw_vpath_rx_doorbell_init(struct __vxge_hw_vpath_handle * vp)4900 void vxge_hw_vpath_rx_doorbell_init(struct __vxge_hw_vpath_handle *vp)
4901 {
4902 struct __vxge_hw_virtualpath *vpath = vp->vpath;
4903 struct __vxge_hw_ring *ring = vpath->ringh;
4904 struct vxgedev *vdev = netdev_priv(vpath->hldev->ndev);
4905 u64 new_count, val64, val164;
4906
4907 if (vdev->titan1) {
4908 new_count = readq(&vpath->vp_reg->rxdmem_size);
4909 new_count &= 0x1fff;
4910 } else
4911 new_count = ring->config->ring_blocks * VXGE_HW_BLOCK_SIZE / 8;
4912
4913 val164 = VXGE_HW_RXDMEM_SIZE_PRC_RXDMEM_SIZE(new_count);
4914
4915 writeq(VXGE_HW_PRC_RXD_DOORBELL_NEW_QW_CNT(val164),
4916 &vpath->vp_reg->prc_rxd_doorbell);
4917 readl(&vpath->vp_reg->prc_rxd_doorbell);
4918
4919 val164 /= 2;
4920 val64 = readq(&vpath->vp_reg->prc_cfg6);
4921 val64 = VXGE_HW_PRC_CFG6_RXD_SPAT(val64);
4922 val64 &= 0x1ff;
4923
4924 /*
4925 * Each RxD is of 4 qwords
4926 */
4927 new_count -= (val64 + 1);
4928 val64 = min(val164, new_count) / 4;
4929
4930 ring->rxds_limit = min(ring->rxds_limit, val64);
4931 if (ring->rxds_limit < 4)
4932 ring->rxds_limit = 4;
4933 }
4934
4935 /*
4936 * __vxge_hw_blockpool_block_free - Frees a block from block pool
4937 * @devh: Hal device
4938 * @entry: Entry of block to be freed
4939 *
4940 * This function frees a block from block pool
4941 */
4942 static void
__vxge_hw_blockpool_block_free(struct __vxge_hw_device * devh,struct __vxge_hw_blockpool_entry * entry)4943 __vxge_hw_blockpool_block_free(struct __vxge_hw_device *devh,
4944 struct __vxge_hw_blockpool_entry *entry)
4945 {
4946 struct __vxge_hw_blockpool *blockpool;
4947
4948 blockpool = &devh->block_pool;
4949
4950 if (entry->length == blockpool->block_size) {
4951 list_add(&entry->item, &blockpool->free_block_list);
4952 blockpool->pool_size++;
4953 }
4954
4955 __vxge_hw_blockpool_blocks_remove(blockpool);
4956 }
4957
4958 /*
4959 * vxge_hw_vpath_close - Close the handle got from previous vpath (vpath) open
4960 * This function is used to close access to virtual path opened
4961 * earlier.
4962 */
vxge_hw_vpath_close(struct __vxge_hw_vpath_handle * vp)4963 enum vxge_hw_status vxge_hw_vpath_close(struct __vxge_hw_vpath_handle *vp)
4964 {
4965 struct __vxge_hw_virtualpath *vpath = NULL;
4966 struct __vxge_hw_device *devh = NULL;
4967 u32 vp_id = vp->vpath->vp_id;
4968 u32 is_empty = TRUE;
4969 enum vxge_hw_status status = VXGE_HW_OK;
4970
4971 vpath = vp->vpath;
4972 devh = vpath->hldev;
4973
4974 if (vpath->vp_open == VXGE_HW_VP_NOT_OPEN) {
4975 status = VXGE_HW_ERR_VPATH_NOT_OPEN;
4976 goto vpath_close_exit;
4977 }
4978
4979 list_del(&vp->item);
4980
4981 if (!list_empty(&vpath->vpath_handles)) {
4982 list_add(&vp->item, &vpath->vpath_handles);
4983 is_empty = FALSE;
4984 }
4985
4986 if (!is_empty) {
4987 status = VXGE_HW_FAIL;
4988 goto vpath_close_exit;
4989 }
4990
4991 devh->vpaths_deployed &= ~vxge_mBIT(vp_id);
4992
4993 if (vpath->ringh != NULL)
4994 __vxge_hw_ring_delete(vp);
4995
4996 if (vpath->fifoh != NULL)
4997 __vxge_hw_fifo_delete(vp);
4998
4999 if (vpath->stats_block != NULL)
5000 __vxge_hw_blockpool_block_free(devh, vpath->stats_block);
5001
5002 vfree(vp);
5003
5004 __vxge_hw_vp_terminate(devh, vp_id);
5005
5006 vpath_close_exit:
5007 return status;
5008 }
5009
5010 /*
5011 * vxge_hw_vpath_reset - Resets vpath
5012 * This function is used to request a reset of vpath
5013 */
vxge_hw_vpath_reset(struct __vxge_hw_vpath_handle * vp)5014 enum vxge_hw_status vxge_hw_vpath_reset(struct __vxge_hw_vpath_handle *vp)
5015 {
5016 enum vxge_hw_status status;
5017 u32 vp_id;
5018 struct __vxge_hw_virtualpath *vpath = vp->vpath;
5019
5020 vp_id = vpath->vp_id;
5021
5022 if (vpath->vp_open == VXGE_HW_VP_NOT_OPEN) {
5023 status = VXGE_HW_ERR_VPATH_NOT_OPEN;
5024 goto exit;
5025 }
5026
5027 status = __vxge_hw_vpath_reset(vpath->hldev, vp_id);
5028 if (status == VXGE_HW_OK)
5029 vpath->sw_stats->soft_reset_cnt++;
5030 exit:
5031 return status;
5032 }
5033
5034 /*
5035 * vxge_hw_vpath_recover_from_reset - Poll for reset complete and re-initialize.
5036 * This function poll's for the vpath reset completion and re initializes
5037 * the vpath.
5038 */
5039 enum vxge_hw_status
vxge_hw_vpath_recover_from_reset(struct __vxge_hw_vpath_handle * vp)5040 vxge_hw_vpath_recover_from_reset(struct __vxge_hw_vpath_handle *vp)
5041 {
5042 struct __vxge_hw_virtualpath *vpath = NULL;
5043 enum vxge_hw_status status;
5044 struct __vxge_hw_device *hldev;
5045 u32 vp_id;
5046
5047 vp_id = vp->vpath->vp_id;
5048 vpath = vp->vpath;
5049 hldev = vpath->hldev;
5050
5051 if (vpath->vp_open == VXGE_HW_VP_NOT_OPEN) {
5052 status = VXGE_HW_ERR_VPATH_NOT_OPEN;
5053 goto exit;
5054 }
5055
5056 status = __vxge_hw_vpath_reset_check(vpath);
5057 if (status != VXGE_HW_OK)
5058 goto exit;
5059
5060 status = __vxge_hw_vpath_sw_reset(hldev, vp_id);
5061 if (status != VXGE_HW_OK)
5062 goto exit;
5063
5064 status = __vxge_hw_vpath_initialize(hldev, vp_id);
5065 if (status != VXGE_HW_OK)
5066 goto exit;
5067
5068 if (vpath->ringh != NULL)
5069 __vxge_hw_vpath_prc_configure(hldev, vp_id);
5070
5071 memset(vpath->hw_stats, 0,
5072 sizeof(struct vxge_hw_vpath_stats_hw_info));
5073
5074 memset(vpath->hw_stats_sav, 0,
5075 sizeof(struct vxge_hw_vpath_stats_hw_info));
5076
5077 writeq(vpath->stats_block->dma_addr,
5078 &vpath->vp_reg->stats_cfg);
5079
5080 status = vxge_hw_vpath_stats_enable(vp);
5081
5082 exit:
5083 return status;
5084 }
5085
5086 /*
5087 * vxge_hw_vpath_enable - Enable vpath.
5088 * This routine clears the vpath reset thereby enabling a vpath
5089 * to start forwarding frames and generating interrupts.
5090 */
5091 void
vxge_hw_vpath_enable(struct __vxge_hw_vpath_handle * vp)5092 vxge_hw_vpath_enable(struct __vxge_hw_vpath_handle *vp)
5093 {
5094 struct __vxge_hw_device *hldev;
5095 u64 val64;
5096
5097 hldev = vp->vpath->hldev;
5098
5099 val64 = VXGE_HW_CMN_RSTHDLR_CFG1_CLR_VPATH_RESET(
5100 1 << (16 - vp->vpath->vp_id));
5101
5102 __vxge_hw_pio_mem_write32_upper((u32)vxge_bVALn(val64, 0, 32),
5103 &hldev->common_reg->cmn_rsthdlr_cfg1);
5104 }
5105
