1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License, v.1,  (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://opensource.org/licenses/CDDL-1.0.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21 
22 /*
23 * Copyright 2014-2017 Cavium, Inc.
24 * The contents of this file are subject to the terms of the Common Development
25 * and Distribution License, v.1,  (the "License").
26 
27 * You may not use this file except in compliance with the License.
28 
29 * You can obtain a copy of the License at available
30 * at http://opensource.org/licenses/CDDL-1.0
31 
32 * See the License for the specific language governing permissions and
33 * limitations under the License.
34 */
35 
36 #include "bcm_osal.h"
37 #include "ecore_hsi_common.h"
38 #include "ecore_status.h"
39 #include "ecore.h"
40 #include "ecore_hw.h"
41 #include "reg_addr.h"
42 #include "ecore_utils.h"
43 #include "ecore_iov_api.h"
44 
45 #ifndef ASIC_ONLY
46 #define ECORE_EMUL_FACTOR 2000
47 #define ECORE_FPGA_FACTOR 200
48 #endif
49 
50 #define ECORE_BAR_ACQUIRE_TIMEOUT 1000
51 
52 /* Invalid values */
53 #define ECORE_BAR_INVALID_OFFSET	(OSAL_CPU_TO_LE32(-1))
54 
55 struct ecore_ptt {
56 	osal_list_entry_t	list_entry;
57 	unsigned int		idx;
58 	struct pxp_ptt_entry	pxp;
59 	u8			hwfn_id;
60 };
61 
62 struct ecore_ptt_pool {
63 	osal_list_t		free_list;
64 	osal_spinlock_t		lock; /* ptt synchronized access */
65 	struct ecore_ptt	ptts[PXP_EXTERNAL_BAR_PF_WINDOW_NUM];
66 };
67 
ecore_ptt_pool_alloc(struct ecore_hwfn * p_hwfn)68 enum _ecore_status_t ecore_ptt_pool_alloc(struct ecore_hwfn *p_hwfn)
69 {
70 	struct ecore_ptt_pool *p_pool = OSAL_ALLOC(p_hwfn->p_dev,
71 						   GFP_KERNEL,
72 						   sizeof(*p_pool));
73 	int i;
74 
75 	if (!p_pool)
76 		return ECORE_NOMEM;
77 
78 	OSAL_LIST_INIT(&p_pool->free_list);
79 	for (i = 0; i < PXP_EXTERNAL_BAR_PF_WINDOW_NUM; i++) {
80 		p_pool->ptts[i].idx = i;
81 		p_pool->ptts[i].pxp.offset = ECORE_BAR_INVALID_OFFSET;
82 		p_pool->ptts[i].pxp.pretend.control = 0;
83 		p_pool->ptts[i].hwfn_id = p_hwfn->my_id;
84 
85 		/* There are special PTT entries that are taken only by design.
86 		 * The rest are added ot the list for general usage.
87 		 */
88 		if (i >= RESERVED_PTT_MAX)
89 			OSAL_LIST_PUSH_HEAD(&p_pool->ptts[i].list_entry,
90 					    &p_pool->free_list);
91 	}
92 
93 	p_hwfn->p_ptt_pool = p_pool;
94 	OSAL_SPIN_LOCK_ALLOC(p_hwfn, &p_pool->lock);
95 	OSAL_SPIN_LOCK_INIT(&p_pool->lock);
96 
97 	return ECORE_SUCCESS;
98 }
99 
ecore_ptt_invalidate(struct ecore_hwfn * p_hwfn)100 void ecore_ptt_invalidate(struct ecore_hwfn *p_hwfn)
101 {
102 	struct ecore_ptt *p_ptt;
103 	int i;
104 
105 	for (i = 0; i < PXP_EXTERNAL_BAR_PF_WINDOW_NUM; i++) {
106 		p_ptt = &p_hwfn->p_ptt_pool->ptts[i];
107 		p_ptt->pxp.offset = ECORE_BAR_INVALID_OFFSET;
108 	}
109 }
110 
ecore_ptt_pool_free(struct ecore_hwfn * p_hwfn)111 void ecore_ptt_pool_free(struct ecore_hwfn *p_hwfn)
112 {
113 #ifndef __EXTRACT__LINUX__
114 	if (p_hwfn->p_ptt_pool)
115 		OSAL_SPIN_LOCK_DEALLOC(&p_hwfn->p_ptt_pool->lock);
116 #endif
117 	OSAL_FREE(p_hwfn->p_dev, p_hwfn->p_ptt_pool);
118 	p_hwfn->p_ptt_pool = OSAL_NULL;
119 }
120 
ecore_ptt_acquire(struct ecore_hwfn * p_hwfn)121 struct ecore_ptt *ecore_ptt_acquire(struct ecore_hwfn	*p_hwfn)
122 {
123 	struct ecore_ptt *p_ptt;
124 	unsigned int i;
125 
126 	/* Take the free PTT from the list */
127 	for (i = 0; i < ECORE_BAR_ACQUIRE_TIMEOUT; i++) {
128 		OSAL_SPIN_LOCK(&p_hwfn->p_ptt_pool->lock);
129 
130 		if (!OSAL_LIST_IS_EMPTY(&p_hwfn->p_ptt_pool->free_list)) {
131 			p_ptt = OSAL_LIST_FIRST_ENTRY(&p_hwfn->p_ptt_pool->free_list,
132 						      struct ecore_ptt, list_entry);
133 			OSAL_LIST_REMOVE_ENTRY(&p_ptt->list_entry,
134 					       &p_hwfn->p_ptt_pool->free_list);
135 
136 			OSAL_SPIN_UNLOCK(&p_hwfn->p_ptt_pool->lock);
137 
138 			DP_VERBOSE(p_hwfn, ECORE_MSG_HW,
139 				   "allocated ptt %d\n", p_ptt->idx);
140 
141 			return p_ptt;
142 		}
143 
144 		OSAL_SPIN_UNLOCK(&p_hwfn->p_ptt_pool->lock);
145 		OSAL_MSLEEP(1);
146 	}
147 
148 	DP_NOTICE(p_hwfn, true, "PTT acquire timeout - failed to allocate PTT\n");
149 	return OSAL_NULL;
150 }
151 
ecore_ptt_release(struct ecore_hwfn * p_hwfn,struct ecore_ptt * p_ptt)152 void ecore_ptt_release(struct ecore_hwfn *p_hwfn,
153 		       struct ecore_ptt *p_ptt) {
154 	/* This PTT should not be set to pretend if it is being released */
155 	/* TODO - add some pretend sanity checks, to make sure pretend isn't set on this ptt */
156 
157 	OSAL_SPIN_LOCK(&p_hwfn->p_ptt_pool->lock);
158 	OSAL_LIST_PUSH_HEAD(&p_ptt->list_entry, &p_hwfn->p_ptt_pool->free_list);
159 	OSAL_SPIN_UNLOCK(&p_hwfn->p_ptt_pool->lock);
160 }
161 
ecore_ptt_get_hw_addr(struct ecore_hwfn * p_hwfn,struct ecore_ptt * p_ptt)162 u32 ecore_ptt_get_hw_addr(struct ecore_hwfn *p_hwfn,
163 			  struct ecore_ptt *p_ptt)
164 {
165 	/* The HW is using DWORDS and we need to translate it to Bytes */
166 	return OSAL_LE32_TO_CPU(p_ptt->pxp.offset) << 2;
167 }
168 
ecore_ptt_config_addr(struct ecore_ptt * p_ptt)169 static u32 ecore_ptt_config_addr(struct ecore_ptt *p_ptt)
170 {
171 	return PXP_PF_WINDOW_ADMIN_PER_PF_START +
172 	       p_ptt->idx * sizeof(struct pxp_ptt_entry);
173 }
174 
ecore_ptt_get_bar_addr(struct ecore_ptt * p_ptt)175 u32 ecore_ptt_get_bar_addr(struct ecore_ptt *p_ptt)
176 {
177 	return PXP_EXTERNAL_BAR_PF_WINDOW_START +
178 	       p_ptt->idx * PXP_EXTERNAL_BAR_PF_WINDOW_SINGLE_SIZE;
179 }
180 
ecore_ptt_set_win(struct ecore_hwfn * p_hwfn,struct ecore_ptt * p_ptt,u32 new_hw_addr)181 void ecore_ptt_set_win(struct ecore_hwfn *p_hwfn,
182 		       struct ecore_ptt *p_ptt,
183 		       u32 new_hw_addr)
184 {
185 	u32 prev_hw_addr;
186 
187 	prev_hw_addr = ecore_ptt_get_hw_addr(p_hwfn, p_ptt);
188 
189 	if (new_hw_addr == prev_hw_addr)
190 		return;
191 
192 	/* Update PTT entery in admin window */
193 	DP_VERBOSE(p_hwfn, ECORE_MSG_HW,
194 		   "Updating PTT entry %d to offset 0x%x\n",
195 		   p_ptt->idx, new_hw_addr);
196 
197 	/* The HW is using DWORDS and the address is in Bytes */
198 	p_ptt->pxp.offset = OSAL_CPU_TO_LE32(new_hw_addr >> 2);
199 
200 	REG_WR(p_hwfn,
201 	       ecore_ptt_config_addr(p_ptt) +
202 	       offsetof(struct pxp_ptt_entry, offset),
203 	       OSAL_LE32_TO_CPU(p_ptt->pxp.offset));
204 }
205 
ecore_set_ptt(struct ecore_hwfn * p_hwfn,struct ecore_ptt * p_ptt,u32 hw_addr)206 static u32 ecore_set_ptt(struct ecore_hwfn *p_hwfn,
207 			 struct ecore_ptt *p_ptt,
208 			 u32 hw_addr)
209 {
210 	u32 win_hw_addr = ecore_ptt_get_hw_addr(p_hwfn, p_ptt);
211 	u32 offset;
212 
213 	offset = hw_addr - win_hw_addr;
214 
215 	if (p_ptt->hwfn_id != p_hwfn->my_id)
216 		DP_NOTICE(p_hwfn, true,
217 			  "ptt[%d] of hwfn[%02x] is used by hwfn[%02x]!\n",
218 			  p_ptt->idx, p_ptt->hwfn_id, p_hwfn->my_id);
219 
220 	/* Verify the address is within the window */
221 	if (hw_addr < win_hw_addr ||
222 	    offset >= PXP_EXTERNAL_BAR_PF_WINDOW_SINGLE_SIZE) {
223 		ecore_ptt_set_win(p_hwfn, p_ptt, hw_addr);
224 		offset = 0;
225 	}
226 
227 	return ecore_ptt_get_bar_addr(p_ptt) + offset;
228 }
229 
ecore_get_reserved_ptt(struct ecore_hwfn * p_hwfn,enum reserved_ptts ptt_idx)230 struct ecore_ptt *ecore_get_reserved_ptt(struct ecore_hwfn	*p_hwfn,
231 					 enum reserved_ptts	ptt_idx)
232 {
233 	if (ptt_idx >= RESERVED_PTT_MAX) {
234 		DP_NOTICE(p_hwfn, true,
235 			  "Requested PTT %d is out of range\n", ptt_idx);
236 		return OSAL_NULL;
237 	}
238 
239 	return &p_hwfn->p_ptt_pool->ptts[ptt_idx];
240 }
241 
ecore_is_reg_fifo_empty(struct ecore_hwfn * p_hwfn,struct ecore_ptt * p_ptt)242 static bool ecore_is_reg_fifo_empty(struct ecore_hwfn *p_hwfn,
243 				    struct ecore_ptt *p_ptt)
244 {
245 	bool is_empty = true;
246 	u32 bar_addr;
247 
248 	if (!p_hwfn->p_dev->chk_reg_fifo)
249 		goto out;
250 
251 	/* ecore_rd() cannot be used here since it calls this function */
252 	bar_addr = ecore_set_ptt(p_hwfn, p_ptt, GRC_REG_TRACE_FIFO_VALID_DATA);
253 	is_empty = REG_RD(p_hwfn, bar_addr) == 0;
254 
255 #ifndef ASIC_ONLY
256 	if (CHIP_REV_IS_SLOW(p_hwfn->p_dev))
257 		OSAL_UDELAY(100);
258 #endif
259 
260 out:
261 	return is_empty;
262 }
263 
ecore_wr(struct ecore_hwfn * p_hwfn,struct ecore_ptt * p_ptt,u32 hw_addr,u32 val)264 void ecore_wr(struct ecore_hwfn *p_hwfn, struct ecore_ptt *p_ptt, u32 hw_addr,
265 	      u32 val)
266 {
267 	bool prev_fifo_err;
268 	u32 bar_addr;
269 
270 	prev_fifo_err = !ecore_is_reg_fifo_empty(p_hwfn, p_ptt);
271 
272 	bar_addr = ecore_set_ptt(p_hwfn, p_ptt, hw_addr);
273 	REG_WR(p_hwfn, bar_addr, val);
274 	DP_VERBOSE(p_hwfn, ECORE_MSG_HW,
275 		   "bar_addr 0x%x, hw_addr 0x%x, val 0x%x\n",
276 		   bar_addr, hw_addr, val);
277 
278 #ifndef ASIC_ONLY
279 	if (CHIP_REV_IS_SLOW(p_hwfn->p_dev))
280 		OSAL_UDELAY(100);
281 #endif
282 
283 	OSAL_WARN(!prev_fifo_err && !ecore_is_reg_fifo_empty(p_hwfn, p_ptt),
284 		  "reg_fifo error was caused by a call to ecore_wr(0x%x, 0x%x)\n",
285 		  hw_addr, val);
286 }
287 
ecore_rd(struct ecore_hwfn * p_hwfn,struct ecore_ptt * p_ptt,u32 hw_addr)288 u32 ecore_rd(struct ecore_hwfn *p_hwfn, struct ecore_ptt *p_ptt, u32 hw_addr)
289 {
290 	bool prev_fifo_err;
291 	u32 bar_addr, val;
292 
293 	prev_fifo_err = !ecore_is_reg_fifo_empty(p_hwfn, p_ptt);
294 
295 	bar_addr = ecore_set_ptt(p_hwfn, p_ptt, hw_addr);
296 	val = REG_RD(p_hwfn, bar_addr);
297 
298 	DP_VERBOSE(p_hwfn, ECORE_MSG_HW,
299 		   "bar_addr 0x%x, hw_addr 0x%x, val 0x%x\n",
300 		   bar_addr, hw_addr, val);
301 
302 #ifndef ASIC_ONLY
303 	if (CHIP_REV_IS_SLOW(p_hwfn->p_dev))
304 		OSAL_UDELAY(100);
305 #endif
306 
307 	OSAL_WARN(!prev_fifo_err && !ecore_is_reg_fifo_empty(p_hwfn, p_ptt),
308 		  "reg_fifo error was caused by a call to ecore_rd(0x%x)\n",
309 		  hw_addr);
310 
311 	return val;
312 }
313 
ecore_memcpy_hw(struct ecore_hwfn * p_hwfn,struct ecore_ptt * p_ptt,void * addr,u32 hw_addr,osal_size_t n,bool to_device)314 static void ecore_memcpy_hw(struct ecore_hwfn *p_hwfn,
315 			    struct ecore_ptt *p_ptt,
316 			    void *addr,
317 			    u32 hw_addr,
318 			    osal_size_t n,
319 			    bool to_device)
320 {
321 	u32 dw_count, *host_addr, hw_offset;
322 	osal_size_t quota, done = 0;
323 	u32 OSAL_IOMEM *reg_addr;
324 
325 	while (done < n) {
326 		quota = OSAL_MIN_T(osal_size_t, n - done,
327 				   PXP_EXTERNAL_BAR_PF_WINDOW_SINGLE_SIZE);
328 
329 		if (IS_PF(p_hwfn->p_dev)) {
330 			ecore_ptt_set_win(p_hwfn, p_ptt, hw_addr + done);
331 			hw_offset = ecore_ptt_get_bar_addr(p_ptt);
332 		} else {
333 			hw_offset = hw_addr + done;
334 		}
335 
336 		dw_count = quota / 4;
337 		host_addr = (u32 *)((u8 *)addr + done);
338 		reg_addr = (u32 OSAL_IOMEM *)OSAL_REG_ADDR(p_hwfn, hw_offset);
339 
340 		if (to_device)
341 			while (dw_count--)
342 				DIRECT_REG_WR(p_hwfn, reg_addr++, *host_addr++);
343 		else
344 			while (dw_count--)
345 				*host_addr++ = DIRECT_REG_RD(p_hwfn,
346 							     reg_addr++);
347 
348 		done += quota;
349 	}
350 }
351 
ecore_memcpy_from(struct ecore_hwfn * p_hwfn,struct ecore_ptt * p_ptt,void * dest,u32 hw_addr,osal_size_t n)352 void ecore_memcpy_from(struct ecore_hwfn *p_hwfn,
353 		       struct ecore_ptt *p_ptt,
354 		       void *dest, u32 hw_addr, osal_size_t n)
355 {
356 	DP_VERBOSE(p_hwfn, ECORE_MSG_HW,
357 		   "hw_addr 0x%x, dest %p hw_addr 0x%x, size %lu\n",
358 		   hw_addr, dest, hw_addr, (unsigned long) n);
359 
360 	ecore_memcpy_hw(p_hwfn, p_ptt, dest, hw_addr, n, false);
361 }
362 
ecore_memcpy_to(struct ecore_hwfn * p_hwfn,struct ecore_ptt * p_ptt,u32 hw_addr,void * src,osal_size_t n)363 void ecore_memcpy_to(struct ecore_hwfn *p_hwfn,
364 		     struct ecore_ptt *p_ptt,
365 		     u32 hw_addr, void *src, osal_size_t n)
366 {
367 	DP_VERBOSE(p_hwfn, ECORE_MSG_HW,
368 		   "hw_addr 0x%x, hw_addr 0x%x, src %p size %lu\n",
369 		   hw_addr, hw_addr, src, (unsigned long)n);
370 
371 	ecore_memcpy_hw(p_hwfn, p_ptt, src, hw_addr, n, true);
372 }
373 
ecore_fid_pretend(struct ecore_hwfn * p_hwfn,struct ecore_ptt * p_ptt,u16 fid)374 void ecore_fid_pretend(struct ecore_hwfn *p_hwfn,
375 		       struct ecore_ptt *p_ptt, u16 fid)
376 {
377 	u16 control = 0;
378 
379 	SET_FIELD(control, PXP_PRETEND_CMD_IS_CONCRETE, 1);
380 	SET_FIELD(control, PXP_PRETEND_CMD_PRETEND_FUNCTION, 1);
381 
382 	/* Every pretend undos previous pretends, including
383 	 * previous port pretend.
384 	 */
385 	SET_FIELD(control, PXP_PRETEND_CMD_PORT, 0);
386 	SET_FIELD(control, PXP_PRETEND_CMD_USE_PORT, 0);
387 	SET_FIELD(control, PXP_PRETEND_CMD_PRETEND_PORT, 1);
388 
389 	if (!GET_FIELD(fid, PXP_CONCRETE_FID_VFVALID))
390 		fid = GET_FIELD(fid, PXP_CONCRETE_FID_PFID);
391 
392 	p_ptt->pxp.pretend.control = OSAL_CPU_TO_LE16(control);
393 	p_ptt->pxp.pretend.fid.concrete_fid.fid = OSAL_CPU_TO_LE16(fid);
394 
395 	REG_WR(p_hwfn,
396 	       ecore_ptt_config_addr(p_ptt) +
397 	       offsetof(struct pxp_ptt_entry, pretend),
398 	       *(u32 *)&p_ptt->pxp.pretend);
399 }
400 
ecore_port_pretend(struct ecore_hwfn * p_hwfn,struct ecore_ptt * p_ptt,u8 port_id)401 void ecore_port_pretend(struct ecore_hwfn *p_hwfn,
402 			struct ecore_ptt *p_ptt, u8 port_id)
403 {
404 	u16 control = 0;
405 
406 	SET_FIELD(control, PXP_PRETEND_CMD_PORT, port_id);
407 	SET_FIELD(control, PXP_PRETEND_CMD_USE_PORT, 1);
408 	SET_FIELD(control, PXP_PRETEND_CMD_PRETEND_PORT, 1);
409 	p_ptt->pxp.pretend.control = OSAL_CPU_TO_LE16(control);
410 
411 	REG_WR(p_hwfn,
412 	       ecore_ptt_config_addr(p_ptt) +
413 	       offsetof(struct pxp_ptt_entry, pretend),
414 	       *(u32 *)&p_ptt->pxp.pretend);
415 }
416 
ecore_port_unpretend(struct ecore_hwfn * p_hwfn,struct ecore_ptt * p_ptt)417 void ecore_port_unpretend(struct ecore_hwfn *p_hwfn,
418 			  struct ecore_ptt *p_ptt)
419 {
420 	u16 control = 0;
421 
422 	SET_FIELD(control, PXP_PRETEND_CMD_PORT, 0);
423 	SET_FIELD(control, PXP_PRETEND_CMD_USE_PORT, 0);
424 	SET_FIELD(control, PXP_PRETEND_CMD_PRETEND_PORT, 1);
425 
426 	p_ptt->pxp.pretend.control = OSAL_CPU_TO_LE16(control);
427 
428 	REG_WR(p_hwfn,
429 	       ecore_ptt_config_addr(p_ptt) +
430 	       offsetof(struct pxp_ptt_entry, pretend),
431 	       *(u32 *)&p_ptt->pxp.pretend);
432 }
433 
ecore_vfid_to_concrete(struct ecore_hwfn * p_hwfn,u8 vfid)434 u32 ecore_vfid_to_concrete(struct ecore_hwfn *p_hwfn, u8 vfid)
435 {
436 	u32 concrete_fid = 0;
437 
438 	SET_FIELD(concrete_fid, PXP_CONCRETE_FID_PFID, p_hwfn->rel_pf_id);
439 	SET_FIELD(concrete_fid, PXP_CONCRETE_FID_VFID, vfid);
440 	SET_FIELD(concrete_fid, PXP_CONCRETE_FID_VFVALID, 1);
441 
442 	return concrete_fid;
443 }
444 
445 #if 0
446 /* Ecore HW lock
447  * =============
448  * Although the implemention is ready, today we don't have any flow that
449  * utliizes said locks - and we want to keep it this way.
450  * If this changes, this needs to be revisted.
451  */
452 #define HW_LOCK_MAX_RETRIES 1000
453 enum _ecore_status_t ecore_hw_lock(struct ecore_hwfn		*p_hwfn,
454 				   struct ecore_ptt		*p_ptt,
455 				   u8                           resource,
456 				   bool				block)
457 {
458 	u32 cnt, lock_status, hw_lock_cntr_reg;
459 	enum _ecore_status_t ecore_status;
460 
461 	/* Locate the proper lock register for this function.
462 	 * Note This code assumes all the H/W lock registers are sequential
463 	 * in memory.
464 	 */
465 	hw_lock_cntr_reg = MISCS_REG_DRIVER_CONTROL_0 +
466 			   p_hwfn->rel_pf_id *
467 			   MISCS_REG_DRIVER_CONTROL_0_SIZE * sizeof(u32);
468 
469 	/* Validate that the resource is not already taken */
470 	lock_status = ecore_rd(p_hwfn, p_ptt, hw_lock_cntr_reg);
471 
472 	if (lock_status & resource) {
473 		DP_NOTICE(p_hwfn, true,
474 			  "Resource already locked: lock_status=0x%x resource=0x%x\n",
475 			  lock_status, resource);
476 
477 		return ECORE_BUSY;
478 	}
479 
480 	/* Register for the lock */
481 	ecore_wr(p_hwfn, p_ptt, hw_lock_cntr_reg + sizeof(u32), resource);
482 
483 	/* Try for 5 seconds every 5ms */
484 	for (cnt = 0; cnt < HW_LOCK_MAX_RETRIES; cnt++) {
485 		lock_status = ecore_rd(p_hwfn, p_ptt, hw_lock_cntr_reg);
486 
487 		if (lock_status & resource)
488 			return ECORE_SUCCESS;
489 
490 		if (!block) {
491 			ecore_status = ECORE_BUSY;
492 			break;
493 		}
494 
495 		OSAL_MSLEEP(5);
496 	}
497 
498 	if (cnt == HW_LOCK_MAX_RETRIES) {
499 		DP_NOTICE(p_hwfn, true, "Lock timeout resource=0x%x\n",
500 			  resource);
501 		ecore_status = ECORE_TIMEOUT;
502 	}
503 
504 	/* Clear the pending request */
505 	ecore_wr(p_hwfn, p_ptt, hw_lock_cntr_reg, resource);
506 
507 	return ecore_status;
508 }
509 
510 enum _ecore_status_t ecore_hw_unlock(struct ecore_hwfn		*p_hwfn,
511 				     struct ecore_ptt		*p_ptt,
512 				     u8                         resource)
513 {
514 	u32 lock_status, hw_lock_cntr_reg;
515 
516 	/* Locate the proper lock register for this function.
517 	 * Note This code assumes all the H/W lock registers are sequential
518 	 * in memory.
519 	 */
520 	hw_lock_cntr_reg = MISCS_REG_DRIVER_CONTROL_0 +
521 			   p_hwfn->rel_pf_id *
522 			   MISCS_REG_DRIVER_CONTROL_0_SIZE * sizeof(u32);
523 
524 	/*  Validate that the resource is currently taken */
525 	lock_status = ecore_rd(p_hwfn, p_ptt, hw_lock_cntr_reg);
526 
527 	if (!(lock_status & resource)) {
528 		DP_NOTICE(p_hwfn, true,
529 			  "resource 0x%x was not taken (lock status 0x%x)\n",
530 			  resource, lock_status);
531 
532 		return ECORE_NODEV;
533 	}
534 
535 	/* clear lock for resource */
536 	ecore_wr(p_hwfn, p_ptt, hw_lock_cntr_reg, resource);
537 	return ECORE_SUCCESS;
538 }
539 #endif /* HW locks logic */
540 
541 /* DMAE */
ecore_dmae_opcode(struct ecore_hwfn * p_hwfn,const u8 is_src_type_grc,const u8 is_dst_type_grc,struct ecore_dmae_params * p_params)542 static void ecore_dmae_opcode(struct ecore_hwfn	*p_hwfn,
543 			      const u8	is_src_type_grc,
544 			      const u8	is_dst_type_grc,
545 			      struct ecore_dmae_params *p_params)
546 {
547 	u16 opcode_b = 0;
548 	u32 opcode = 0;
549 
550 	/* Whether the source is the PCIe or the GRC.
551 	 * 0- The source is the PCIe
552 	 * 1- The source is the GRC.
553 	 */
554 	opcode |= (is_src_type_grc ? DMAE_CMD_SRC_MASK_GRC
555 				   : DMAE_CMD_SRC_MASK_PCIE) <<
556 		  DMAE_CMD_SRC_SHIFT;
557 	opcode |= (p_hwfn->rel_pf_id & DMAE_CMD_SRC_PF_ID_MASK) <<
558 		  DMAE_CMD_SRC_PF_ID_SHIFT;
559 
560 	/* The destination of the DMA can be: 0-None 1-PCIe 2-GRC 3-None */
561 	opcode |= (is_dst_type_grc ? DMAE_CMD_DST_MASK_GRC
562 				   : DMAE_CMD_DST_MASK_PCIE) <<
563 		  DMAE_CMD_DST_SHIFT;
564 	opcode |= (p_hwfn->rel_pf_id & DMAE_CMD_DST_PF_ID_MASK) <<
565 		  DMAE_CMD_DST_PF_ID_SHIFT;
566 
567 	/* DMAE_E4_TODO need to check which value to specifiy here. */
568 	/* opcode |= (!b_complete_to_host)<< DMAE_CMD_C_DST_SHIFT;*/
569 
570 	/* Whether to write a completion word to the completion destination:
571 	 * 0-Do not write a completion word
572 	 * 1-Write the completion word
573 	 */
574 	opcode |= DMAE_CMD_COMP_WORD_EN_MASK << DMAE_CMD_COMP_WORD_EN_SHIFT;
575 	opcode |= DMAE_CMD_SRC_ADDR_RESET_MASK <<
576 		  DMAE_CMD_SRC_ADDR_RESET_SHIFT;
577 
578 	if (p_params->flags & ECORE_DMAE_FLAG_COMPLETION_DST)
579 		opcode |= 1 << DMAE_CMD_COMP_FUNC_SHIFT;
580 
581 	/* swapping mode 3 - big endian there should be a define ifdefed in
582 	 * the HSI somewhere. Since it is currently
583 	 */
584 	opcode |= DMAE_CMD_ENDIANITY << DMAE_CMD_ENDIANITY_MODE_SHIFT;
585 
586 	opcode |= p_hwfn->port_id << DMAE_CMD_PORT_ID_SHIFT;
587 
588 	/* reset source address in next go */
589 	opcode |= DMAE_CMD_SRC_ADDR_RESET_MASK <<
590 		  DMAE_CMD_SRC_ADDR_RESET_SHIFT;
591 
592 	/* reset dest address in next go */
593 	opcode |= DMAE_CMD_DST_ADDR_RESET_MASK <<
594 		  DMAE_CMD_DST_ADDR_RESET_SHIFT;
595 
596 	/* SRC/DST VFID: all 1's - pf, otherwise VF id */
597 	if (p_params->flags & ECORE_DMAE_FLAG_VF_SRC) {
598 		opcode |= (1 << DMAE_CMD_SRC_VF_ID_VALID_SHIFT);
599 		opcode_b |= (p_params->src_vfid <<  DMAE_CMD_SRC_VF_ID_SHIFT);
600 	} else {
601 		opcode_b |= (DMAE_CMD_SRC_VF_ID_MASK <<
602 			     DMAE_CMD_SRC_VF_ID_SHIFT);
603 	}
604 	if (p_params->flags & ECORE_DMAE_FLAG_VF_DST) {
605 		opcode |= 1 << DMAE_CMD_DST_VF_ID_VALID_SHIFT;
606 		opcode_b |= p_params->dst_vfid << DMAE_CMD_DST_VF_ID_SHIFT;
607 	} else {
608 		opcode_b |= DMAE_CMD_DST_VF_ID_MASK <<
609 			    DMAE_CMD_DST_VF_ID_SHIFT;
610 	}
611 
612 	p_hwfn->dmae_info.p_dmae_cmd->opcode = OSAL_CPU_TO_LE32(opcode);
613 	p_hwfn->dmae_info.p_dmae_cmd->opcode_b = OSAL_CPU_TO_LE16(opcode_b);
614 }
615 
ecore_dmae_idx_to_go_cmd(u8 idx)616 static u32 ecore_dmae_idx_to_go_cmd(u8 idx)
617 {
618 	OSAL_BUILD_BUG_ON((DMAE_REG_GO_C31 - DMAE_REG_GO_C0) !=
619 			  31 * 4);
620 
621 	/* All the DMAE 'go' registers form an array in internal memory */
622 	return DMAE_REG_GO_C0 + (idx << 2);
623 }
624 
ecore_dmae_post_command(struct ecore_hwfn * p_hwfn,struct ecore_ptt * p_ptt)625 static enum _ecore_status_t ecore_dmae_post_command(struct ecore_hwfn *p_hwfn,
626 						    struct ecore_ptt *p_ptt)
627 {
628 	struct dmae_cmd *p_command = p_hwfn->dmae_info.p_dmae_cmd;
629 	u8 idx_cmd = p_hwfn->dmae_info.channel, i;
630 	enum _ecore_status_t ecore_status = ECORE_SUCCESS;
631 
632 	/* verify address is not OSAL_NULL */
633 	if ((((!p_command->dst_addr_lo) && (!p_command->dst_addr_hi)) ||
634 	     ((!p_command->src_addr_lo) && (!p_command->src_addr_hi)))) {
635 		DP_NOTICE(p_hwfn, true,
636 			  "source or destination address 0 idx_cmd=%d\n"
637 			  "opcode = [0x%08x,0x%04x] len=0x%x src=0x%x:%x dst=0x%x:%x\n",
638 			  idx_cmd,
639 			  OSAL_LE32_TO_CPU(p_command->opcode),
640 			  OSAL_LE16_TO_CPU(p_command->opcode_b),
641 			  OSAL_LE16_TO_CPU(p_command->length_dw),
642 			  OSAL_LE32_TO_CPU(p_command->src_addr_hi),
643 			  OSAL_LE32_TO_CPU(p_command->src_addr_lo),
644 			  OSAL_LE32_TO_CPU(p_command->dst_addr_hi),
645 			  OSAL_LE32_TO_CPU(p_command->dst_addr_lo));
646 
647 		return ECORE_INVAL;
648 	}
649 
650 	DP_VERBOSE(p_hwfn, ECORE_MSG_HW,
651 		   "Posting DMAE command [idx %d]: opcode = [0x%08x,0x%04x] len=0x%x src=0x%x:%x dst=0x%x:%x\n",
652 		   idx_cmd,
653 		   OSAL_LE32_TO_CPU(p_command->opcode),
654 		   OSAL_LE16_TO_CPU(p_command->opcode_b),
655 		   OSAL_LE16_TO_CPU(p_command->length_dw),
656 		   OSAL_LE32_TO_CPU(p_command->src_addr_hi),
657 		   OSAL_LE32_TO_CPU(p_command->src_addr_lo),
658 		   OSAL_LE32_TO_CPU(p_command->dst_addr_hi),
659 		   OSAL_LE32_TO_CPU(p_command->dst_addr_lo));
660 
661 	/* Copy the command to DMAE - need to do it before every call
662 	 * for source/dest address no reset.
663 	 * The number of commands have been increased to 16 (previous was 14)
664 	 * The first 9 DWs are the command registers, the 10 DW is the
665 	 * GO register, and
666 	 * the rest are result registers (which are read only by the client).
667 	 */
668 	for (i = 0; i < DMAE_CMD_SIZE; i++) {
669 		u32 data = (i < DMAE_CMD_SIZE_TO_FILL) ?
670 			    *(((u32 *)p_command) + i) : 0;
671 
672 		ecore_wr(p_hwfn, p_ptt,
673 			 DMAE_REG_CMD_MEM +
674 			 (idx_cmd * DMAE_CMD_SIZE * sizeof(u32)) +
675 			 (i * sizeof(u32)), data);
676 	}
677 
678 	ecore_wr(p_hwfn, p_ptt,
679 		 ecore_dmae_idx_to_go_cmd(idx_cmd),
680 		 DMAE_GO_VALUE);
681 
682 	return ecore_status;
683 }
684 
ecore_dmae_info_alloc(struct ecore_hwfn * p_hwfn)685 enum _ecore_status_t ecore_dmae_info_alloc(struct ecore_hwfn *p_hwfn)
686 {
687 	dma_addr_t *p_addr = &p_hwfn->dmae_info.completion_word_phys_addr;
688 	struct dmae_cmd **p_cmd = &p_hwfn->dmae_info.p_dmae_cmd;
689 	u32 **p_buff = &p_hwfn->dmae_info.p_intermediate_buffer;
690 	u32 **p_comp = &p_hwfn->dmae_info.p_completion_word;
691 
692 	*p_comp = OSAL_DMA_ALLOC_COHERENT(p_hwfn->p_dev, p_addr, sizeof(u32));
693 	if (*p_comp == OSAL_NULL) {
694 		DP_NOTICE(p_hwfn, true,
695 			  "Failed to allocate `p_completion_word'\n");
696 		goto err;
697 	}
698 
699 	p_addr =  &p_hwfn->dmae_info.dmae_cmd_phys_addr;
700 	*p_cmd = OSAL_DMA_ALLOC_COHERENT(p_hwfn->p_dev, p_addr,
701 					 sizeof(struct dmae_cmd));
702 	if (*p_cmd == OSAL_NULL) {
703 		DP_NOTICE(p_hwfn, true,
704 			  "Failed to allocate `struct dmae_cmd'\n");
705 		goto err;
706 	}
707 
708 	p_addr = &p_hwfn->dmae_info.intermediate_buffer_phys_addr;
709 	*p_buff = OSAL_DMA_ALLOC_COHERENT(p_hwfn->p_dev, p_addr,
710 					  sizeof(u32) * DMAE_MAX_RW_SIZE);
711 	if (*p_buff == OSAL_NULL) {
712 		DP_NOTICE(p_hwfn, true,
713 			  "Failed to allocate `intermediate_buffer'\n");
714 		goto err;
715 	}
716 
717 	p_hwfn->dmae_info.channel = p_hwfn->rel_pf_id;
718 
719 	return ECORE_SUCCESS;
720 err:
721 	ecore_dmae_info_free(p_hwfn);
722 	return ECORE_NOMEM;
723 }
724 
ecore_dmae_info_free(struct ecore_hwfn * p_hwfn)725 void ecore_dmae_info_free(struct ecore_hwfn *p_hwfn)
726 {
727 	dma_addr_t p_phys;
728 
729 	/* Just make sure no one is in the middle */
730 	OSAL_MUTEX_ACQUIRE(&p_hwfn->dmae_info.mutex);
731 
732 	if (p_hwfn->dmae_info.p_completion_word != OSAL_NULL) {
733 		p_phys = p_hwfn->dmae_info.completion_word_phys_addr;
734 		OSAL_DMA_FREE_COHERENT(p_hwfn->p_dev,
735 				       p_hwfn->dmae_info.p_completion_word,
736 				       p_phys, sizeof(u32));
737 		p_hwfn->dmae_info.p_completion_word = OSAL_NULL;
738 	}
739 
740 	if (p_hwfn->dmae_info.p_dmae_cmd != OSAL_NULL) {
741 		p_phys = p_hwfn->dmae_info.dmae_cmd_phys_addr;
742 		OSAL_DMA_FREE_COHERENT(p_hwfn->p_dev,
743 				       p_hwfn->dmae_info.p_dmae_cmd,
744 				       p_phys, sizeof(struct dmae_cmd));
745 		p_hwfn->dmae_info.p_dmae_cmd = OSAL_NULL;
746 	}
747 
748 	if (p_hwfn->dmae_info.p_intermediate_buffer != OSAL_NULL) {
749 		p_phys = p_hwfn->dmae_info.intermediate_buffer_phys_addr;
750 		OSAL_DMA_FREE_COHERENT(p_hwfn->p_dev,
751 				       p_hwfn->dmae_info.p_intermediate_buffer,
752 				       p_phys, sizeof(u32) * DMAE_MAX_RW_SIZE);
753 		p_hwfn->dmae_info.p_intermediate_buffer = OSAL_NULL;
754 	}
755 
756 	OSAL_MUTEX_RELEASE(&p_hwfn->dmae_info.mutex);
757 }
758 
759 static enum _ecore_status_t
ecore_dmae_operation_wait(struct ecore_hwfn * p_hwfn)760 ecore_dmae_operation_wait(struct ecore_hwfn *p_hwfn)
761 {
762 	u32 wait_cnt_limit = 10000, wait_cnt = 0;
763 	enum _ecore_status_t ecore_status = ECORE_SUCCESS;
764 
765 #ifndef ASIC_ONLY
766 	u32 factor = (CHIP_REV_IS_EMUL(p_hwfn->p_dev) ?
767 		      ECORE_EMUL_FACTOR :
768 		      (CHIP_REV_IS_FPGA(p_hwfn->p_dev) ?
769 		       ECORE_FPGA_FACTOR : 1));
770 
771 	wait_cnt_limit *= factor;
772 #endif
773 
774 	/* DMAE_E4_TODO : TODO check if we have to call any other function
775 	 * other than BARRIER to sync the completion_word since we are not
776 	 * using the volatile keyword for this
777 	 */
778 	OSAL_BARRIER(p_hwfn->p_dev);
779 	while (*p_hwfn->dmae_info.p_completion_word != DMAE_COMPLETION_VAL) {
780 		OSAL_UDELAY(DMAE_MIN_WAIT_TIME);
781 		if (++wait_cnt > wait_cnt_limit) {
782 			DP_NOTICE(p_hwfn->p_dev, ECORE_MSG_HW,
783 				  "Timed-out waiting for operation to complete. Completion word is 0x%08x expected 0x%08x.\n",
784 				  *(p_hwfn->dmae_info.p_completion_word),
785 				  DMAE_COMPLETION_VAL);
786 			ecore_status = ECORE_TIMEOUT;
787 			break;
788 		}
789 
790 		/* to sync the completion_word since we are not
791 		 * using the volatile keyword for p_completion_word
792 		 */
793 		OSAL_BARRIER(p_hwfn->p_dev);
794 	}
795 
796 	if (ecore_status == ECORE_SUCCESS)
797 		*p_hwfn->dmae_info.p_completion_word = 0;
798 
799 	return ecore_status;
800 }
801 
ecore_dmae_execute_sub_operation(struct ecore_hwfn * p_hwfn,struct ecore_ptt * p_ptt,u64 src_addr,u64 dst_addr,u8 src_type,u8 dst_type,u32 length_dw)802 static enum _ecore_status_t ecore_dmae_execute_sub_operation(struct ecore_hwfn *p_hwfn,
803 							     struct ecore_ptt *p_ptt,
804 							     u64 src_addr,
805 							     u64 dst_addr,
806 							     u8 src_type,
807 							     u8 dst_type,
808 							     u32 length_dw)
809 {
810 	dma_addr_t phys = p_hwfn->dmae_info.intermediate_buffer_phys_addr;
811 	struct dmae_cmd *cmd = p_hwfn->dmae_info.p_dmae_cmd;
812 	enum _ecore_status_t ecore_status = ECORE_SUCCESS;
813 
814 	switch (src_type) {
815 	case ECORE_DMAE_ADDRESS_GRC:
816 	case ECORE_DMAE_ADDRESS_HOST_PHYS:
817 		cmd->src_addr_hi = OSAL_CPU_TO_LE32(DMA_HI(src_addr));
818 		cmd->src_addr_lo = OSAL_CPU_TO_LE32(DMA_LO(src_addr));
819 		break;
820 	/* for virtual source addresses we use the intermediate buffer. */
821 	case ECORE_DMAE_ADDRESS_HOST_VIRT:
822 		cmd->src_addr_hi = OSAL_CPU_TO_LE32(DMA_HI(phys));
823 		cmd->src_addr_lo = OSAL_CPU_TO_LE32(DMA_LO(phys));
824 		OSAL_MEMCPY(&(p_hwfn->dmae_info.p_intermediate_buffer[0]),
825 			    (void *)(osal_uintptr_t)src_addr,
826 			    length_dw * sizeof(u32));
827 		break;
828 	default:
829 		return ECORE_INVAL;
830 	}
831 
832 	switch (dst_type) {
833 	case ECORE_DMAE_ADDRESS_GRC:
834 	case ECORE_DMAE_ADDRESS_HOST_PHYS:
835 		cmd->dst_addr_hi = OSAL_CPU_TO_LE32(DMA_HI(dst_addr));
836 		cmd->dst_addr_lo = OSAL_CPU_TO_LE32(DMA_LO(dst_addr));
837 		break;
838 	/* for virtual destination addresses we use the intermediate buffer. */
839 	case ECORE_DMAE_ADDRESS_HOST_VIRT:
840 		cmd->dst_addr_hi = OSAL_CPU_TO_LE32(DMA_HI(phys));
841 		cmd->dst_addr_lo = OSAL_CPU_TO_LE32(DMA_LO(phys));
842 		break;
843 	default:
844 		return ECORE_INVAL;
845 	}
846 
847 	cmd->length_dw = OSAL_CPU_TO_LE16((u16)length_dw);
848 #ifndef __EXTRACT__LINUX__
849 	if (src_type == ECORE_DMAE_ADDRESS_HOST_VIRT ||
850 	    src_type == ECORE_DMAE_ADDRESS_HOST_PHYS)
851 		OSAL_DMA_SYNC(p_hwfn->p_dev,
852 			      (void *)HILO_U64(cmd->src_addr_hi,
853 					       cmd->src_addr_lo),
854 			      length_dw * sizeof(u32), false);
855 #endif
856 
857 	ecore_dmae_post_command(p_hwfn, p_ptt);
858 
859 	ecore_status = ecore_dmae_operation_wait(p_hwfn);
860 
861 #ifndef __EXTRACT__LINUX__
862 	/* TODO - is it true ? */
863 	if (src_type == ECORE_DMAE_ADDRESS_HOST_VIRT ||
864 	    src_type == ECORE_DMAE_ADDRESS_HOST_PHYS)
865 		OSAL_DMA_SYNC(p_hwfn->p_dev,
866 			      (void *)HILO_U64(cmd->src_addr_hi,
867 					       cmd->src_addr_lo),
868 			      length_dw * sizeof(u32), true);
869 #endif
870 
871 	if (ecore_status != ECORE_SUCCESS) {
872 		DP_NOTICE(p_hwfn, ECORE_MSG_HW,
873 			  "Wait Failed. source_addr 0x%llx, grc_addr 0x%llx, size_in_dwords 0x%x, intermediate buffer 0x%llx.\n",
874 			  src_addr, dst_addr, length_dw,
875 			  (u64)p_hwfn->dmae_info.intermediate_buffer_phys_addr);
876 		return ecore_status;
877 	}
878 
879 	if (dst_type == ECORE_DMAE_ADDRESS_HOST_VIRT)
880 		OSAL_MEMCPY((void *)(osal_uintptr_t)(dst_addr),
881 			    &p_hwfn->dmae_info.p_intermediate_buffer[0],
882 			    length_dw * sizeof(u32));
883 
884 	return ECORE_SUCCESS;
885 }
886 
ecore_dmae_execute_command(struct ecore_hwfn * p_hwfn,struct ecore_ptt * p_ptt,u64 src_addr,u64 dst_addr,u8 src_type,u8 dst_type,u32 size_in_dwords,struct ecore_dmae_params * p_params)887 static enum _ecore_status_t ecore_dmae_execute_command(struct ecore_hwfn *p_hwfn,
888 						       struct ecore_ptt *p_ptt,
889 						       u64 src_addr, u64 dst_addr,
890 						       u8 src_type, u8 dst_type,
891 						       u32 size_in_dwords,
892 						       struct ecore_dmae_params *p_params)
893 {
894 	dma_addr_t phys = p_hwfn->dmae_info.completion_word_phys_addr;
895 	u16 length_cur = 0, i = 0, cnt_split = 0, length_mod = 0;
896 	struct dmae_cmd *cmd = p_hwfn->dmae_info.p_dmae_cmd;
897 	u64 src_addr_split = 0, dst_addr_split = 0;
898 	u16 length_limit = DMAE_MAX_RW_SIZE;
899 	enum _ecore_status_t ecore_status = ECORE_SUCCESS;
900 	u32 offset = 0;
901 
902 	if (p_hwfn->p_dev->recov_in_prog) {
903 		DP_VERBOSE(p_hwfn, ECORE_MSG_HW,
904 			   "Recovery is in progress. Avoid DMAE transaction [{src: addr 0x%llx, type %d}, {dst: addr 0x%llx, type %d}, size %d].\n",
905 			   src_addr, src_type, dst_addr, dst_type,
906 			   size_in_dwords);
907 		/* Return success to let the flow to be completed successfully
908 		 * w/o any error handling.
909 		 */
910 		return ECORE_SUCCESS;
911 	}
912 
913 	ecore_dmae_opcode(p_hwfn,
914 			  (src_type == ECORE_DMAE_ADDRESS_GRC),
915 			  (dst_type == ECORE_DMAE_ADDRESS_GRC),
916 			  p_params);
917 
918 	cmd->comp_addr_lo = OSAL_CPU_TO_LE32(DMA_LO(phys));
919 	cmd->comp_addr_hi = OSAL_CPU_TO_LE32(DMA_HI(phys));
920 	cmd->comp_val = OSAL_CPU_TO_LE32(DMAE_COMPLETION_VAL);
921 
922 	/* Check if the grc_addr is valid like < MAX_GRC_OFFSET */
923 	cnt_split = size_in_dwords / length_limit;
924 	length_mod = size_in_dwords % length_limit;
925 
926 	src_addr_split = src_addr;
927 	dst_addr_split = dst_addr;
928 
929 	for (i = 0; i <= cnt_split; i++) {
930 		offset = length_limit * i;
931 
932 		if (!(p_params->flags & ECORE_DMAE_FLAG_RW_REPL_SRC)) {
933 			if (src_type == ECORE_DMAE_ADDRESS_GRC)
934 				src_addr_split = src_addr + offset;
935 			else
936 				src_addr_split = src_addr + (offset*4);
937 		}
938 
939 		if (dst_type == ECORE_DMAE_ADDRESS_GRC)
940 			dst_addr_split = dst_addr + offset;
941 		else
942 			dst_addr_split = dst_addr + (offset*4);
943 
944 		length_cur = (cnt_split == i) ? length_mod : length_limit;
945 
946 		/* might be zero on last iteration */
947 		if (!length_cur)
948 			continue;
949 
950 		ecore_status = ecore_dmae_execute_sub_operation(p_hwfn,
951 								p_ptt,
952 								src_addr_split,
953 								dst_addr_split,
954 								src_type,
955 								dst_type,
956 								length_cur);
957 		if (ecore_status != ECORE_SUCCESS) {
958 			DP_NOTICE(p_hwfn, false,
959 				  "ecore_dmae_execute_sub_operation Failed with error 0x%x. source_addr 0x%llx, destination addr 0x%llx, size_in_dwords 0x%x\n",
960 				  ecore_status, src_addr, dst_addr, length_cur);
961 
962 			ecore_hw_err_notify(p_hwfn, ECORE_HW_ERR_DMAE_FAIL);
963 			break;
964 		}
965 	}
966 
967 	return ecore_status;
968 }
969 
ecore_dmae_host2grc(struct ecore_hwfn * p_hwfn,struct ecore_ptt * p_ptt,u64 source_addr,u32 grc_addr,u32 size_in_dwords,u32 flags)970 enum _ecore_status_t ecore_dmae_host2grc(struct ecore_hwfn *p_hwfn,
971 					 struct ecore_ptt *p_ptt,
972 					 u64 source_addr,
973 					 u32 grc_addr,
974 					 u32 size_in_dwords,
975 					 u32 flags)
976 {
977 	u32 grc_addr_in_dw = grc_addr / sizeof(u32);
978 	struct ecore_dmae_params params;
979 	enum _ecore_status_t rc;
980 
981 	OSAL_MEMSET(&params, 0, sizeof(struct ecore_dmae_params));
982 	params.flags = flags;
983 
984 	OSAL_MUTEX_ACQUIRE(&p_hwfn->dmae_info.mutex);
985 
986 	rc = ecore_dmae_execute_command(p_hwfn, p_ptt, source_addr,
987 					grc_addr_in_dw,
988 					ECORE_DMAE_ADDRESS_HOST_VIRT,
989 					ECORE_DMAE_ADDRESS_GRC,
990 					size_in_dwords, &params);
991 
992 	OSAL_MUTEX_RELEASE(&p_hwfn->dmae_info.mutex);
993 
994 	return rc;
995 }
996 
ecore_dmae_grc2host(struct ecore_hwfn * p_hwfn,struct ecore_ptt * p_ptt,u32 grc_addr,dma_addr_t dest_addr,u32 size_in_dwords,u32 flags)997 enum _ecore_status_t ecore_dmae_grc2host(struct ecore_hwfn *p_hwfn,
998 					 struct ecore_ptt *p_ptt,
999 					 u32 grc_addr,
1000 					 dma_addr_t dest_addr,
1001 					 u32 size_in_dwords,
1002 					 u32 flags)
1003 {
1004 	u32 grc_addr_in_dw = grc_addr / sizeof(u32);
1005 	struct ecore_dmae_params params;
1006 	enum _ecore_status_t rc;
1007 
1008 	OSAL_MEMSET(&params, 0, sizeof(struct ecore_dmae_params));
1009 	params.flags = flags;
1010 
1011 	OSAL_MUTEX_ACQUIRE(&(p_hwfn->dmae_info.mutex));
1012 
1013 	rc = ecore_dmae_execute_command(p_hwfn, p_ptt, grc_addr_in_dw,
1014 					dest_addr, ECORE_DMAE_ADDRESS_GRC,
1015 					ECORE_DMAE_ADDRESS_HOST_VIRT,
1016 					size_in_dwords, &params);
1017 
1018 	OSAL_MUTEX_RELEASE(&(p_hwfn->dmae_info.mutex));
1019 
1020 	return rc;
1021 }
1022 
ecore_dmae_host2host(struct ecore_hwfn * p_hwfn,struct ecore_ptt * p_ptt,dma_addr_t source_addr,dma_addr_t dest_addr,u32 size_in_dwords,struct ecore_dmae_params * p_params)1023 enum _ecore_status_t ecore_dmae_host2host(struct ecore_hwfn *p_hwfn,
1024 					  struct ecore_ptt *p_ptt,
1025 					  dma_addr_t source_addr,
1026 					  dma_addr_t dest_addr,
1027 					  u32 size_in_dwords,
1028 					  struct ecore_dmae_params *p_params)
1029 {
1030 	enum _ecore_status_t rc;
1031 
1032 	OSAL_MUTEX_ACQUIRE(&p_hwfn->dmae_info.mutex);
1033 
1034 	rc = ecore_dmae_execute_command(p_hwfn, p_ptt, source_addr,
1035 					dest_addr,
1036 					ECORE_DMAE_ADDRESS_HOST_PHYS,
1037 					ECORE_DMAE_ADDRESS_HOST_PHYS,
1038 					size_in_dwords,
1039 					p_params);
1040 
1041 	OSAL_MUTEX_RELEASE(&p_hwfn->dmae_info.mutex);
1042 
1043 	return rc;
1044 }
1045 
ecore_hw_err_notify(struct ecore_hwfn * p_hwfn,enum ecore_hw_err_type err_type)1046 void ecore_hw_err_notify(struct ecore_hwfn *p_hwfn,
1047 			 enum ecore_hw_err_type err_type)
1048 {
1049 	/* Fan failure cannot be masked by handling of another HW error */
1050 	if (p_hwfn->p_dev->recov_in_prog && err_type != ECORE_HW_ERR_FAN_FAIL) {
1051 		DP_VERBOSE(p_hwfn, ECORE_MSG_DRV,
1052 			   "Recovery is in progress. Avoid notifying about HW error %d.\n",
1053 			   err_type);
1054 		return;
1055 	}
1056 
1057 	OSAL_HW_ERROR_OCCURRED(p_hwfn, err_type);
1058 }
1059