1 /*
2  * QLogic qlcnic NIC Driver
3  * Copyright (c) 2009-2013 QLogic Corporation
4  *
5  * See LICENSE.qlcnic for copyright and licensing details.
6  */
7 
8 #include "qlcnic.h"
9 #include "qlcnic_hw.h"
10 
11 struct crb_addr_pair {
12 	u32 addr;
13 	u32 data;
14 };
15 
16 #define QLCNIC_MAX_CRB_XFORM 60
17 static unsigned int crb_addr_xform[QLCNIC_MAX_CRB_XFORM];
18 
19 #define crb_addr_transform(name) \
20 	(crb_addr_xform[QLCNIC_HW_PX_MAP_CRB_##name] = \
21 	QLCNIC_HW_CRB_HUB_AGT_ADR_##name << 20)
22 
23 #define QLCNIC_ADDR_ERROR (0xffffffff)
24 
25 static int
26 qlcnic_check_fw_hearbeat(struct qlcnic_adapter *adapter);
27 
28 static void crb_addr_transform_setup(void)
29 {
30 	crb_addr_transform(XDMA);
31 	crb_addr_transform(TIMR);
32 	crb_addr_transform(SRE);
33 	crb_addr_transform(SQN3);
34 	crb_addr_transform(SQN2);
35 	crb_addr_transform(SQN1);
36 	crb_addr_transform(SQN0);
37 	crb_addr_transform(SQS3);
38 	crb_addr_transform(SQS2);
39 	crb_addr_transform(SQS1);
40 	crb_addr_transform(SQS0);
41 	crb_addr_transform(RPMX7);
42 	crb_addr_transform(RPMX6);
43 	crb_addr_transform(RPMX5);
44 	crb_addr_transform(RPMX4);
45 	crb_addr_transform(RPMX3);
46 	crb_addr_transform(RPMX2);
47 	crb_addr_transform(RPMX1);
48 	crb_addr_transform(RPMX0);
49 	crb_addr_transform(ROMUSB);
50 	crb_addr_transform(SN);
51 	crb_addr_transform(QMN);
52 	crb_addr_transform(QMS);
53 	crb_addr_transform(PGNI);
54 	crb_addr_transform(PGND);
55 	crb_addr_transform(PGN3);
56 	crb_addr_transform(PGN2);
57 	crb_addr_transform(PGN1);
58 	crb_addr_transform(PGN0);
59 	crb_addr_transform(PGSI);
60 	crb_addr_transform(PGSD);
61 	crb_addr_transform(PGS3);
62 	crb_addr_transform(PGS2);
63 	crb_addr_transform(PGS1);
64 	crb_addr_transform(PGS0);
65 	crb_addr_transform(PS);
66 	crb_addr_transform(PH);
67 	crb_addr_transform(NIU);
68 	crb_addr_transform(I2Q);
69 	crb_addr_transform(EG);
70 	crb_addr_transform(MN);
71 	crb_addr_transform(MS);
72 	crb_addr_transform(CAS2);
73 	crb_addr_transform(CAS1);
74 	crb_addr_transform(CAS0);
75 	crb_addr_transform(CAM);
76 	crb_addr_transform(C2C1);
77 	crb_addr_transform(C2C0);
78 	crb_addr_transform(SMB);
79 	crb_addr_transform(OCM0);
80 	crb_addr_transform(I2C0);
81 }
82 
83 void qlcnic_release_rx_buffers(struct qlcnic_adapter *adapter)
84 {
85 	struct qlcnic_recv_context *recv_ctx;
86 	struct qlcnic_host_rds_ring *rds_ring;
87 	struct qlcnic_rx_buffer *rx_buf;
88 	int i, ring;
89 
90 	recv_ctx = adapter->recv_ctx;
91 	for (ring = 0; ring < adapter->max_rds_rings; ring++) {
92 		rds_ring = &recv_ctx->rds_rings[ring];
93 		for (i = 0; i < rds_ring->num_desc; ++i) {
94 			rx_buf = &(rds_ring->rx_buf_arr[i]);
95 			if (rx_buf->skb == NULL)
96 				continue;
97 
98 			pci_unmap_single(adapter->pdev,
99 					rx_buf->dma,
100 					rds_ring->dma_size,
101 					PCI_DMA_FROMDEVICE);
102 
103 			dev_kfree_skb_any(rx_buf->skb);
104 		}
105 	}
106 }
107 
108 void qlcnic_reset_rx_buffers_list(struct qlcnic_adapter *adapter)
109 {
110 	struct qlcnic_recv_context *recv_ctx;
111 	struct qlcnic_host_rds_ring *rds_ring;
112 	struct qlcnic_rx_buffer *rx_buf;
113 	int i, ring;
114 
115 	recv_ctx = adapter->recv_ctx;
116 	for (ring = 0; ring < adapter->max_rds_rings; ring++) {
117 		rds_ring = &recv_ctx->rds_rings[ring];
118 
119 		INIT_LIST_HEAD(&rds_ring->free_list);
120 
121 		rx_buf = rds_ring->rx_buf_arr;
122 		for (i = 0; i < rds_ring->num_desc; i++) {
123 			list_add_tail(&rx_buf->list,
124 					&rds_ring->free_list);
125 			rx_buf++;
126 		}
127 	}
128 }
129 
130 void qlcnic_release_tx_buffers(struct qlcnic_adapter *adapter,
131 			       struct qlcnic_host_tx_ring *tx_ring)
132 {
133 	struct qlcnic_cmd_buffer *cmd_buf;
134 	struct qlcnic_skb_frag *buffrag;
135 	int i, j;
136 
137 	spin_lock(&tx_ring->tx_clean_lock);
138 
139 	cmd_buf = tx_ring->cmd_buf_arr;
140 	for (i = 0; i < tx_ring->num_desc; i++) {
141 		buffrag = cmd_buf->frag_array;
142 		if (buffrag->dma) {
143 			pci_unmap_single(adapter->pdev, buffrag->dma,
144 					 buffrag->length, PCI_DMA_TODEVICE);
145 			buffrag->dma = 0ULL;
146 		}
147 		for (j = 1; j < cmd_buf->frag_count; j++) {
148 			buffrag++;
149 			if (buffrag->dma) {
150 				pci_unmap_page(adapter->pdev, buffrag->dma,
151 					       buffrag->length,
152 					       PCI_DMA_TODEVICE);
153 				buffrag->dma = 0ULL;
154 			}
155 		}
156 		if (cmd_buf->skb) {
157 			dev_kfree_skb_any(cmd_buf->skb);
158 			cmd_buf->skb = NULL;
159 		}
160 		cmd_buf++;
161 	}
162 
163 	spin_unlock(&tx_ring->tx_clean_lock);
164 }
165 
166 void qlcnic_free_sw_resources(struct qlcnic_adapter *adapter)
167 {
168 	struct qlcnic_recv_context *recv_ctx;
169 	struct qlcnic_host_rds_ring *rds_ring;
170 	int ring;
171 
172 	recv_ctx = adapter->recv_ctx;
173 
174 	if (recv_ctx->rds_rings == NULL)
175 		return;
176 
177 	for (ring = 0; ring < adapter->max_rds_rings; ring++) {
178 		rds_ring = &recv_ctx->rds_rings[ring];
179 		vfree(rds_ring->rx_buf_arr);
180 		rds_ring->rx_buf_arr = NULL;
181 	}
182 	kfree(recv_ctx->rds_rings);
183 }
184 
185 int qlcnic_alloc_sw_resources(struct qlcnic_adapter *adapter)
186 {
187 	struct qlcnic_recv_context *recv_ctx;
188 	struct qlcnic_host_rds_ring *rds_ring;
189 	struct qlcnic_host_sds_ring *sds_ring;
190 	struct qlcnic_rx_buffer *rx_buf;
191 	int ring, i;
192 
193 	recv_ctx = adapter->recv_ctx;
194 
195 	rds_ring = kcalloc(adapter->max_rds_rings,
196 			   sizeof(struct qlcnic_host_rds_ring), GFP_KERNEL);
197 	if (rds_ring == NULL)
198 		goto err_out;
199 
200 	recv_ctx->rds_rings = rds_ring;
201 
202 	for (ring = 0; ring < adapter->max_rds_rings; ring++) {
203 		rds_ring = &recv_ctx->rds_rings[ring];
204 		switch (ring) {
205 		case RCV_RING_NORMAL:
206 			rds_ring->num_desc = adapter->num_rxd;
207 			rds_ring->dma_size = QLCNIC_P3P_RX_BUF_MAX_LEN;
208 			rds_ring->skb_size = rds_ring->dma_size + NET_IP_ALIGN;
209 			break;
210 
211 		case RCV_RING_JUMBO:
212 			rds_ring->num_desc = adapter->num_jumbo_rxd;
213 			rds_ring->dma_size =
214 				QLCNIC_P3P_RX_JUMBO_BUF_MAX_LEN;
215 
216 			if (adapter->ahw->capabilities &
217 			    QLCNIC_FW_CAPABILITY_HW_LRO)
218 				rds_ring->dma_size += QLCNIC_LRO_BUFFER_EXTRA;
219 
220 			rds_ring->skb_size =
221 				rds_ring->dma_size + NET_IP_ALIGN;
222 			break;
223 		}
224 		rds_ring->rx_buf_arr = vzalloc(RCV_BUFF_RINGSIZE(rds_ring));
225 		if (rds_ring->rx_buf_arr == NULL)
226 			goto err_out;
227 
228 		INIT_LIST_HEAD(&rds_ring->free_list);
229 		/*
230 		 * Now go through all of them, set reference handles
231 		 * and put them in the queues.
232 		 */
233 		rx_buf = rds_ring->rx_buf_arr;
234 		for (i = 0; i < rds_ring->num_desc; i++) {
235 			list_add_tail(&rx_buf->list,
236 					&rds_ring->free_list);
237 			rx_buf->ref_handle = i;
238 			rx_buf++;
239 		}
240 		spin_lock_init(&rds_ring->lock);
241 	}
242 
243 	for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
244 		sds_ring = &recv_ctx->sds_rings[ring];
245 		sds_ring->irq = adapter->msix_entries[ring].vector;
246 		sds_ring->adapter = adapter;
247 		sds_ring->num_desc = adapter->num_rxd;
248 		if (qlcnic_82xx_check(adapter)) {
249 			if (qlcnic_check_multi_tx(adapter) &&
250 			    !adapter->ahw->diag_test)
251 				sds_ring->tx_ring = &adapter->tx_ring[ring];
252 			else
253 				sds_ring->tx_ring = &adapter->tx_ring[0];
254 		}
255 		for (i = 0; i < NUM_RCV_DESC_RINGS; i++)
256 			INIT_LIST_HEAD(&sds_ring->free_list[i]);
257 	}
258 
259 	return 0;
260 
261 err_out:
262 	qlcnic_free_sw_resources(adapter);
263 	return -ENOMEM;
264 }
265 
266 /*
267  * Utility to translate from internal Phantom CRB address
268  * to external PCI CRB address.
269  */
270 static u32 qlcnic_decode_crb_addr(u32 addr)
271 {
272 	int i;
273 	u32 base_addr, offset, pci_base;
274 
275 	crb_addr_transform_setup();
276 
277 	pci_base = QLCNIC_ADDR_ERROR;
278 	base_addr = addr & 0xfff00000;
279 	offset = addr & 0x000fffff;
280 
281 	for (i = 0; i < QLCNIC_MAX_CRB_XFORM; i++) {
282 		if (crb_addr_xform[i] == base_addr) {
283 			pci_base = i << 20;
284 			break;
285 		}
286 	}
287 	if (pci_base == QLCNIC_ADDR_ERROR)
288 		return pci_base;
289 	else
290 		return pci_base + offset;
291 }
292 
293 #define QLCNIC_MAX_ROM_WAIT_USEC	100
294 
295 static int qlcnic_wait_rom_done(struct qlcnic_adapter *adapter)
296 {
297 	long timeout = 0;
298 	long done = 0;
299 	int err = 0;
300 
301 	cond_resched();
302 	while (done == 0) {
303 		done = QLCRD32(adapter, QLCNIC_ROMUSB_GLB_STATUS, &err);
304 		done &= 2;
305 		if (++timeout >= QLCNIC_MAX_ROM_WAIT_USEC) {
306 			dev_err(&adapter->pdev->dev,
307 				"Timeout reached  waiting for rom done");
308 			return -EIO;
309 		}
310 		udelay(1);
311 	}
312 	return 0;
313 }
314 
315 static int do_rom_fast_read(struct qlcnic_adapter *adapter,
316 			    u32 addr, u32 *valp)
317 {
318 	int err = 0;
319 
320 	QLCWR32(adapter, QLCNIC_ROMUSB_ROM_ADDRESS, addr);
321 	QLCWR32(adapter, QLCNIC_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
322 	QLCWR32(adapter, QLCNIC_ROMUSB_ROM_ABYTE_CNT, 3);
323 	QLCWR32(adapter, QLCNIC_ROMUSB_ROM_INSTR_OPCODE, 0xb);
324 	if (qlcnic_wait_rom_done(adapter)) {
325 		dev_err(&adapter->pdev->dev, "Error waiting for rom done\n");
326 		return -EIO;
327 	}
328 	/* reset abyte_cnt and dummy_byte_cnt */
329 	QLCWR32(adapter, QLCNIC_ROMUSB_ROM_ABYTE_CNT, 0);
330 	udelay(10);
331 	QLCWR32(adapter, QLCNIC_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
332 
333 	*valp = QLCRD32(adapter, QLCNIC_ROMUSB_ROM_RDATA, &err);
334 	if (err == -EIO)
335 		return err;
336 	return 0;
337 }
338 
339 static int do_rom_fast_read_words(struct qlcnic_adapter *adapter, int addr,
340 				  u8 *bytes, size_t size)
341 {
342 	int addridx;
343 	int ret = 0;
344 
345 	for (addridx = addr; addridx < (addr + size); addridx += 4) {
346 		int v;
347 		ret = do_rom_fast_read(adapter, addridx, &v);
348 		if (ret != 0)
349 			break;
350 		*(__le32 *)bytes = cpu_to_le32(v);
351 		bytes += 4;
352 	}
353 
354 	return ret;
355 }
356 
357 int
358 qlcnic_rom_fast_read_words(struct qlcnic_adapter *adapter, int addr,
359 				u8 *bytes, size_t size)
360 {
361 	int ret;
362 
363 	ret = qlcnic_rom_lock(adapter);
364 	if (ret < 0)
365 		return ret;
366 
367 	ret = do_rom_fast_read_words(adapter, addr, bytes, size);
368 
369 	qlcnic_rom_unlock(adapter);
370 	return ret;
371 }
372 
373 int qlcnic_rom_fast_read(struct qlcnic_adapter *adapter, u32 addr, u32 *valp)
374 {
375 	int ret;
376 
377 	if (qlcnic_rom_lock(adapter) != 0)
378 		return -EIO;
379 
380 	ret = do_rom_fast_read(adapter, addr, valp);
381 	qlcnic_rom_unlock(adapter);
382 	return ret;
383 }
384 
385 int qlcnic_pinit_from_rom(struct qlcnic_adapter *adapter)
386 {
387 	int addr, err = 0;
388 	int i, n, init_delay;
389 	struct crb_addr_pair *buf;
390 	unsigned offset;
391 	u32 off, val;
392 	struct pci_dev *pdev = adapter->pdev;
393 
394 	QLC_SHARED_REG_WR32(adapter, QLCNIC_CMDPEG_STATE, 0);
395 	QLC_SHARED_REG_WR32(adapter, QLCNIC_RCVPEG_STATE, 0);
396 
397 	/* Halt all the indiviual PEGs and other blocks */
398 	/* disable all I2Q */
399 	QLCWR32(adapter, QLCNIC_CRB_I2Q + 0x10, 0x0);
400 	QLCWR32(adapter, QLCNIC_CRB_I2Q + 0x14, 0x0);
401 	QLCWR32(adapter, QLCNIC_CRB_I2Q + 0x18, 0x0);
402 	QLCWR32(adapter, QLCNIC_CRB_I2Q + 0x1c, 0x0);
403 	QLCWR32(adapter, QLCNIC_CRB_I2Q + 0x20, 0x0);
404 	QLCWR32(adapter, QLCNIC_CRB_I2Q + 0x24, 0x0);
405 
406 	/* disable all niu interrupts */
407 	QLCWR32(adapter, QLCNIC_CRB_NIU + 0x40, 0xff);
408 	/* disable xge rx/tx */
409 	QLCWR32(adapter, QLCNIC_CRB_NIU + 0x70000, 0x00);
410 	/* disable xg1 rx/tx */
411 	QLCWR32(adapter, QLCNIC_CRB_NIU + 0x80000, 0x00);
412 	/* disable sideband mac */
413 	QLCWR32(adapter, QLCNIC_CRB_NIU + 0x90000, 0x00);
414 	/* disable ap0 mac */
415 	QLCWR32(adapter, QLCNIC_CRB_NIU + 0xa0000, 0x00);
416 	/* disable ap1 mac */
417 	QLCWR32(adapter, QLCNIC_CRB_NIU + 0xb0000, 0x00);
418 
419 	/* halt sre */
420 	val = QLCRD32(adapter, QLCNIC_CRB_SRE + 0x1000, &err);
421 	if (err == -EIO)
422 		return err;
423 	QLCWR32(adapter, QLCNIC_CRB_SRE + 0x1000, val & (~(0x1)));
424 
425 	/* halt epg */
426 	QLCWR32(adapter, QLCNIC_CRB_EPG + 0x1300, 0x1);
427 
428 	/* halt timers */
429 	QLCWR32(adapter, QLCNIC_CRB_TIMER + 0x0, 0x0);
430 	QLCWR32(adapter, QLCNIC_CRB_TIMER + 0x8, 0x0);
431 	QLCWR32(adapter, QLCNIC_CRB_TIMER + 0x10, 0x0);
432 	QLCWR32(adapter, QLCNIC_CRB_TIMER + 0x18, 0x0);
433 	QLCWR32(adapter, QLCNIC_CRB_TIMER + 0x100, 0x0);
434 	QLCWR32(adapter, QLCNIC_CRB_TIMER + 0x200, 0x0);
435 	/* halt pegs */
436 	QLCWR32(adapter, QLCNIC_CRB_PEG_NET_0 + 0x3c, 1);
437 	QLCWR32(adapter, QLCNIC_CRB_PEG_NET_1 + 0x3c, 1);
438 	QLCWR32(adapter, QLCNIC_CRB_PEG_NET_2 + 0x3c, 1);
439 	QLCWR32(adapter, QLCNIC_CRB_PEG_NET_3 + 0x3c, 1);
440 	QLCWR32(adapter, QLCNIC_CRB_PEG_NET_4 + 0x3c, 1);
441 	msleep(20);
442 
443 	qlcnic_rom_unlock(adapter);
444 	/* big hammer don't reset CAM block on reset */
445 	QLCWR32(adapter, QLCNIC_ROMUSB_GLB_SW_RESET, 0xfeffffff);
446 
447 	/* Init HW CRB block */
448 	if (qlcnic_rom_fast_read(adapter, 0, &n) != 0 || (n != 0xcafecafe) ||
449 			qlcnic_rom_fast_read(adapter, 4, &n) != 0) {
450 		dev_err(&pdev->dev, "ERROR Reading crb_init area: val:%x\n", n);
451 		return -EIO;
452 	}
453 	offset = n & 0xffffU;
454 	n = (n >> 16) & 0xffffU;
455 
456 	if (n >= 1024) {
457 		dev_err(&pdev->dev, "QLOGIC card flash not initialized.\n");
458 		return -EIO;
459 	}
460 
461 	buf = kcalloc(n, sizeof(struct crb_addr_pair), GFP_KERNEL);
462 	if (buf == NULL)
463 		return -ENOMEM;
464 
465 	for (i = 0; i < n; i++) {
466 		if (qlcnic_rom_fast_read(adapter, 8*i + 4*offset, &val) != 0 ||
467 		qlcnic_rom_fast_read(adapter, 8*i + 4*offset + 4, &addr) != 0) {
468 			kfree(buf);
469 			return -EIO;
470 		}
471 
472 		buf[i].addr = addr;
473 		buf[i].data = val;
474 	}
475 
476 	for (i = 0; i < n; i++) {
477 
478 		off = qlcnic_decode_crb_addr(buf[i].addr);
479 		if (off == QLCNIC_ADDR_ERROR) {
480 			dev_err(&pdev->dev, "CRB init value out of range %x\n",
481 					buf[i].addr);
482 			continue;
483 		}
484 		off += QLCNIC_PCI_CRBSPACE;
485 
486 		if (off & 1)
487 			continue;
488 
489 		/* skipping cold reboot MAGIC */
490 		if (off == QLCNIC_CAM_RAM(0x1fc))
491 			continue;
492 		if (off == (QLCNIC_CRB_I2C0 + 0x1c))
493 			continue;
494 		if (off == (ROMUSB_GLB + 0xbc)) /* do not reset PCI */
495 			continue;
496 		if (off == (ROMUSB_GLB + 0xa8))
497 			continue;
498 		if (off == (ROMUSB_GLB + 0xc8)) /* core clock */
499 			continue;
500 		if (off == (ROMUSB_GLB + 0x24)) /* MN clock */
501 			continue;
502 		if (off == (ROMUSB_GLB + 0x1c)) /* MS clock */
503 			continue;
504 		if ((off & 0x0ff00000) == QLCNIC_CRB_DDR_NET)
505 			continue;
506 		/* skip the function enable register */
507 		if (off == QLCNIC_PCIE_REG(PCIE_SETUP_FUNCTION))
508 			continue;
509 		if (off == QLCNIC_PCIE_REG(PCIE_SETUP_FUNCTION2))
510 			continue;
511 		if ((off & 0x0ff00000) == QLCNIC_CRB_SMB)
512 			continue;
513 
514 		init_delay = 1;
515 		/* After writing this register, HW needs time for CRB */
516 		/* to quiet down (else crb_window returns 0xffffffff) */
517 		if (off == QLCNIC_ROMUSB_GLB_SW_RESET)
518 			init_delay = 1000;
519 
520 		QLCWR32(adapter, off, buf[i].data);
521 
522 		msleep(init_delay);
523 	}
524 	kfree(buf);
525 
526 	/* Initialize protocol process engine */
527 	QLCWR32(adapter, QLCNIC_CRB_PEG_NET_D + 0xec, 0x1e);
528 	QLCWR32(adapter, QLCNIC_CRB_PEG_NET_D + 0x4c, 8);
529 	QLCWR32(adapter, QLCNIC_CRB_PEG_NET_I + 0x4c, 8);
530 	QLCWR32(adapter, QLCNIC_CRB_PEG_NET_0 + 0x8, 0);
531 	QLCWR32(adapter, QLCNIC_CRB_PEG_NET_0 + 0xc, 0);
532 	QLCWR32(adapter, QLCNIC_CRB_PEG_NET_1 + 0x8, 0);
533 	QLCWR32(adapter, QLCNIC_CRB_PEG_NET_1 + 0xc, 0);
534 	QLCWR32(adapter, QLCNIC_CRB_PEG_NET_2 + 0x8, 0);
535 	QLCWR32(adapter, QLCNIC_CRB_PEG_NET_2 + 0xc, 0);
536 	QLCWR32(adapter, QLCNIC_CRB_PEG_NET_3 + 0x8, 0);
537 	QLCWR32(adapter, QLCNIC_CRB_PEG_NET_3 + 0xc, 0);
538 	QLCWR32(adapter, QLCNIC_CRB_PEG_NET_4 + 0x8, 0);
539 	QLCWR32(adapter, QLCNIC_CRB_PEG_NET_4 + 0xc, 0);
540 	usleep_range(1000, 1500);
541 
542 	QLC_SHARED_REG_WR32(adapter, QLCNIC_PEG_HALT_STATUS1, 0);
543 	QLC_SHARED_REG_WR32(adapter, QLCNIC_PEG_HALT_STATUS2, 0);
544 
545 	return 0;
546 }
547 
548 static int qlcnic_cmd_peg_ready(struct qlcnic_adapter *adapter)
549 {
550 	u32 val;
551 	int retries = QLCNIC_CMDPEG_CHECK_RETRY_COUNT;
552 
553 	do {
554 		val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CMDPEG_STATE);
555 
556 		switch (val) {
557 		case PHAN_INITIALIZE_COMPLETE:
558 		case PHAN_INITIALIZE_ACK:
559 			return 0;
560 		case PHAN_INITIALIZE_FAILED:
561 			goto out_err;
562 		default:
563 			break;
564 		}
565 
566 		msleep(QLCNIC_CMDPEG_CHECK_DELAY);
567 
568 	} while (--retries);
569 
570 	QLC_SHARED_REG_WR32(adapter, QLCNIC_CMDPEG_STATE,
571 			    PHAN_INITIALIZE_FAILED);
572 
573 out_err:
574 	dev_err(&adapter->pdev->dev, "Command Peg initialization not "
575 		      "complete, state: 0x%x.\n", val);
576 	return -EIO;
577 }
578 
579 static int
580 qlcnic_receive_peg_ready(struct qlcnic_adapter *adapter)
581 {
582 	u32 val;
583 	int retries = QLCNIC_RCVPEG_CHECK_RETRY_COUNT;
584 
585 	do {
586 		val = QLC_SHARED_REG_RD32(adapter, QLCNIC_RCVPEG_STATE);
587 
588 		if (val == PHAN_PEG_RCV_INITIALIZED)
589 			return 0;
590 
591 		msleep(QLCNIC_RCVPEG_CHECK_DELAY);
592 
593 	} while (--retries);
594 
595 	dev_err(&adapter->pdev->dev, "Receive Peg initialization not complete, state: 0x%x.\n",
596 		val);
597 	return -EIO;
598 }
599 
600 int
601 qlcnic_check_fw_status(struct qlcnic_adapter *adapter)
602 {
603 	int err;
604 
605 	err = qlcnic_cmd_peg_ready(adapter);
606 	if (err)
607 		return err;
608 
609 	err = qlcnic_receive_peg_ready(adapter);
610 	if (err)
611 		return err;
612 
613 	QLC_SHARED_REG_WR32(adapter, QLCNIC_CMDPEG_STATE, PHAN_INITIALIZE_ACK);
614 
615 	return err;
616 }
617 
618 int
619 qlcnic_setup_idc_param(struct qlcnic_adapter *adapter) {
620 
621 	int timeo;
622 	u32 val;
623 
624 	val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_PARTITION_INFO);
625 	val = QLC_DEV_GET_DRV(val, adapter->portnum);
626 	if ((val & 0x3) != QLCNIC_TYPE_NIC) {
627 		dev_err(&adapter->pdev->dev,
628 			"Not an Ethernet NIC func=%u\n", val);
629 		return -EIO;
630 	}
631 	adapter->ahw->physical_port = (val >> 2);
632 	if (qlcnic_rom_fast_read(adapter, QLCNIC_ROM_DEV_INIT_TIMEOUT, &timeo))
633 		timeo = QLCNIC_INIT_TIMEOUT_SECS;
634 
635 	adapter->dev_init_timeo = timeo;
636 
637 	if (qlcnic_rom_fast_read(adapter, QLCNIC_ROM_DRV_RESET_TIMEOUT, &timeo))
638 		timeo = QLCNIC_RESET_TIMEOUT_SECS;
639 
640 	adapter->reset_ack_timeo = timeo;
641 
642 	return 0;
643 }
644 
645 static int qlcnic_get_flt_entry(struct qlcnic_adapter *adapter, u8 region,
646 				struct qlcnic_flt_entry *region_entry)
647 {
648 	struct qlcnic_flt_header flt_hdr;
649 	struct qlcnic_flt_entry *flt_entry;
650 	int i = 0, ret;
651 	u32 entry_size;
652 
653 	memset(region_entry, 0, sizeof(struct qlcnic_flt_entry));
654 	ret = qlcnic_rom_fast_read_words(adapter, QLCNIC_FLT_LOCATION,
655 					 (u8 *)&flt_hdr,
656 					 sizeof(struct qlcnic_flt_header));
657 	if (ret) {
658 		dev_warn(&adapter->pdev->dev,
659 			 "error reading flash layout header\n");
660 		return -EIO;
661 	}
662 
663 	entry_size = flt_hdr.len - sizeof(struct qlcnic_flt_header);
664 	flt_entry = vzalloc(entry_size);
665 	if (flt_entry == NULL)
666 		return -EIO;
667 
668 	ret = qlcnic_rom_fast_read_words(adapter, QLCNIC_FLT_LOCATION +
669 					 sizeof(struct qlcnic_flt_header),
670 					 (u8 *)flt_entry, entry_size);
671 	if (ret) {
672 		dev_warn(&adapter->pdev->dev,
673 			 "error reading flash layout entries\n");
674 		goto err_out;
675 	}
676 
677 	while (i < (entry_size/sizeof(struct qlcnic_flt_entry))) {
678 		if (flt_entry[i].region == region)
679 			break;
680 		i++;
681 	}
682 	if (i >= (entry_size/sizeof(struct qlcnic_flt_entry))) {
683 		dev_warn(&adapter->pdev->dev,
684 			 "region=%x not found in %d regions\n", region, i);
685 		ret = -EIO;
686 		goto err_out;
687 	}
688 	memcpy(region_entry, &flt_entry[i], sizeof(struct qlcnic_flt_entry));
689 
690 err_out:
691 	vfree(flt_entry);
692 	return ret;
693 }
694 
695 int
696 qlcnic_check_flash_fw_ver(struct qlcnic_adapter *adapter)
697 {
698 	struct qlcnic_flt_entry fw_entry;
699 	u32 ver = -1, min_ver;
700 	int ret;
701 
702 	if (adapter->ahw->revision_id == QLCNIC_P3P_C0)
703 		ret = qlcnic_get_flt_entry(adapter, QLCNIC_C0_FW_IMAGE_REGION,
704 						 &fw_entry);
705 	else
706 		ret = qlcnic_get_flt_entry(adapter, QLCNIC_B0_FW_IMAGE_REGION,
707 						 &fw_entry);
708 
709 	if (!ret)
710 		/* 0-4:-signature,  4-8:-fw version */
711 		qlcnic_rom_fast_read(adapter, fw_entry.start_addr + 4,
712 				     (int *)&ver);
713 	else
714 		qlcnic_rom_fast_read(adapter, QLCNIC_FW_VERSION_OFFSET,
715 				     (int *)&ver);
716 
717 	ver = QLCNIC_DECODE_VERSION(ver);
718 	min_ver = QLCNIC_MIN_FW_VERSION;
719 
720 	if (ver < min_ver) {
721 		dev_err(&adapter->pdev->dev,
722 			"firmware version %d.%d.%d unsupported."
723 			"Min supported version %d.%d.%d\n",
724 			_major(ver), _minor(ver), _build(ver),
725 			_major(min_ver), _minor(min_ver), _build(min_ver));
726 		return -EINVAL;
727 	}
728 
729 	return 0;
730 }
731 
732 static int
733 qlcnic_has_mn(struct qlcnic_adapter *adapter)
734 {
735 	u32 capability = 0;
736 	int err = 0;
737 
738 	capability = QLCRD32(adapter, QLCNIC_PEG_TUNE_CAPABILITY, &err);
739 	if (err == -EIO)
740 		return err;
741 	if (capability & QLCNIC_PEG_TUNE_MN_PRESENT)
742 		return 1;
743 
744 	return 0;
745 }
746 
747 static
748 struct uni_table_desc *qlcnic_get_table_desc(const u8 *unirom, int section)
749 {
750 	u32 i, entries;
751 	struct uni_table_desc *directory = (struct uni_table_desc *) &unirom[0];
752 	entries = le32_to_cpu(directory->num_entries);
753 
754 	for (i = 0; i < entries; i++) {
755 
756 		u32 offs = le32_to_cpu(directory->findex) +
757 			   i * le32_to_cpu(directory->entry_size);
758 		u32 tab_type = le32_to_cpu(*((__le32 *)&unirom[offs] + 8));
759 
760 		if (tab_type == section)
761 			return (struct uni_table_desc *) &unirom[offs];
762 	}
763 
764 	return NULL;
765 }
766 
767 #define FILEHEADER_SIZE (14 * 4)
768 
769 static int
770 qlcnic_validate_header(struct qlcnic_adapter *adapter)
771 {
772 	const u8 *unirom = adapter->fw->data;
773 	struct uni_table_desc *directory = (struct uni_table_desc *) &unirom[0];
774 	u32 entries, entry_size, tab_size, fw_file_size;
775 
776 	fw_file_size = adapter->fw->size;
777 
778 	if (fw_file_size < FILEHEADER_SIZE)
779 		return -EINVAL;
780 
781 	entries = le32_to_cpu(directory->num_entries);
782 	entry_size = le32_to_cpu(directory->entry_size);
783 	tab_size = le32_to_cpu(directory->findex) + (entries * entry_size);
784 
785 	if (fw_file_size < tab_size)
786 		return -EINVAL;
787 
788 	return 0;
789 }
790 
791 static int
792 qlcnic_validate_bootld(struct qlcnic_adapter *adapter)
793 {
794 	struct uni_table_desc *tab_desc;
795 	struct uni_data_desc *descr;
796 	u32 offs, tab_size, data_size, idx;
797 	const u8 *unirom = adapter->fw->data;
798 	__le32 temp;
799 
800 	temp = *((__le32 *)&unirom[adapter->file_prd_off] +
801 		 QLCNIC_UNI_BOOTLD_IDX_OFF);
802 	idx = le32_to_cpu(temp);
803 	tab_desc = qlcnic_get_table_desc(unirom, QLCNIC_UNI_DIR_SECT_BOOTLD);
804 
805 	if (!tab_desc)
806 		return -EINVAL;
807 
808 	tab_size = le32_to_cpu(tab_desc->findex) +
809 		   le32_to_cpu(tab_desc->entry_size) * (idx + 1);
810 
811 	if (adapter->fw->size < tab_size)
812 		return -EINVAL;
813 
814 	offs = le32_to_cpu(tab_desc->findex) +
815 	       le32_to_cpu(tab_desc->entry_size) * idx;
816 	descr = (struct uni_data_desc *)&unirom[offs];
817 
818 	data_size = le32_to_cpu(descr->findex) + le32_to_cpu(descr->size);
819 
820 	if (adapter->fw->size < data_size)
821 		return -EINVAL;
822 
823 	return 0;
824 }
825 
826 static int
827 qlcnic_validate_fw(struct qlcnic_adapter *adapter)
828 {
829 	struct uni_table_desc *tab_desc;
830 	struct uni_data_desc *descr;
831 	const u8 *unirom = adapter->fw->data;
832 	u32 offs, tab_size, data_size, idx;
833 	__le32 temp;
834 
835 	temp = *((__le32 *)&unirom[adapter->file_prd_off] +
836 		 QLCNIC_UNI_FIRMWARE_IDX_OFF);
837 	idx = le32_to_cpu(temp);
838 	tab_desc = qlcnic_get_table_desc(unirom, QLCNIC_UNI_DIR_SECT_FW);
839 
840 	if (!tab_desc)
841 		return -EINVAL;
842 
843 	tab_size = le32_to_cpu(tab_desc->findex) +
844 		   le32_to_cpu(tab_desc->entry_size) * (idx + 1);
845 
846 	if (adapter->fw->size < tab_size)
847 		return -EINVAL;
848 
849 	offs = le32_to_cpu(tab_desc->findex) +
850 	       le32_to_cpu(tab_desc->entry_size) * idx;
851 	descr = (struct uni_data_desc *)&unirom[offs];
852 	data_size = le32_to_cpu(descr->findex) + le32_to_cpu(descr->size);
853 
854 	if (adapter->fw->size < data_size)
855 		return -EINVAL;
856 
857 	return 0;
858 }
859 
860 static int
861 qlcnic_validate_product_offs(struct qlcnic_adapter *adapter)
862 {
863 	struct uni_table_desc *ptab_descr;
864 	const u8 *unirom = adapter->fw->data;
865 	int mn_present = qlcnic_has_mn(adapter);
866 	u32 entries, entry_size, tab_size, i;
867 	__le32 temp;
868 
869 	ptab_descr = qlcnic_get_table_desc(unirom,
870 				QLCNIC_UNI_DIR_SECT_PRODUCT_TBL);
871 	if (!ptab_descr)
872 		return -EINVAL;
873 
874 	entries = le32_to_cpu(ptab_descr->num_entries);
875 	entry_size = le32_to_cpu(ptab_descr->entry_size);
876 	tab_size = le32_to_cpu(ptab_descr->findex) + (entries * entry_size);
877 
878 	if (adapter->fw->size < tab_size)
879 		return -EINVAL;
880 
881 nomn:
882 	for (i = 0; i < entries; i++) {
883 
884 		u32 flags, file_chiprev, offs;
885 		u8 chiprev = adapter->ahw->revision_id;
886 		u32 flagbit;
887 
888 		offs = le32_to_cpu(ptab_descr->findex) +
889 		       i * le32_to_cpu(ptab_descr->entry_size);
890 		temp = *((__le32 *)&unirom[offs] + QLCNIC_UNI_FLAGS_OFF);
891 		flags = le32_to_cpu(temp);
892 		temp = *((__le32 *)&unirom[offs] + QLCNIC_UNI_CHIP_REV_OFF);
893 		file_chiprev = le32_to_cpu(temp);
894 
895 		flagbit = mn_present ? 1 : 2;
896 
897 		if ((chiprev == file_chiprev) &&
898 					((1ULL << flagbit) & flags)) {
899 			adapter->file_prd_off = offs;
900 			return 0;
901 		}
902 	}
903 	if (mn_present) {
904 		mn_present = 0;
905 		goto nomn;
906 	}
907 	return -EINVAL;
908 }
909 
910 static int
911 qlcnic_validate_unified_romimage(struct qlcnic_adapter *adapter)
912 {
913 	if (qlcnic_validate_header(adapter)) {
914 		dev_err(&adapter->pdev->dev,
915 				"unified image: header validation failed\n");
916 		return -EINVAL;
917 	}
918 
919 	if (qlcnic_validate_product_offs(adapter)) {
920 		dev_err(&adapter->pdev->dev,
921 				"unified image: product validation failed\n");
922 		return -EINVAL;
923 	}
924 
925 	if (qlcnic_validate_bootld(adapter)) {
926 		dev_err(&adapter->pdev->dev,
927 				"unified image: bootld validation failed\n");
928 		return -EINVAL;
929 	}
930 
931 	if (qlcnic_validate_fw(adapter)) {
932 		dev_err(&adapter->pdev->dev,
933 				"unified image: firmware validation failed\n");
934 		return -EINVAL;
935 	}
936 
937 	return 0;
938 }
939 
940 static
941 struct uni_data_desc *qlcnic_get_data_desc(struct qlcnic_adapter *adapter,
942 			u32 section, u32 idx_offset)
943 {
944 	const u8 *unirom = adapter->fw->data;
945 	struct uni_table_desc *tab_desc;
946 	u32 offs, idx;
947 	__le32 temp;
948 
949 	temp = *((__le32 *)&unirom[adapter->file_prd_off] + idx_offset);
950 	idx = le32_to_cpu(temp);
951 
952 	tab_desc = qlcnic_get_table_desc(unirom, section);
953 
954 	if (tab_desc == NULL)
955 		return NULL;
956 
957 	offs = le32_to_cpu(tab_desc->findex) +
958 	       le32_to_cpu(tab_desc->entry_size) * idx;
959 
960 	return (struct uni_data_desc *)&unirom[offs];
961 }
962 
963 static u8 *
964 qlcnic_get_bootld_offs(struct qlcnic_adapter *adapter)
965 {
966 	u32 offs = QLCNIC_BOOTLD_START;
967 	struct uni_data_desc *data_desc;
968 
969 	data_desc = qlcnic_get_data_desc(adapter, QLCNIC_UNI_DIR_SECT_BOOTLD,
970 					 QLCNIC_UNI_BOOTLD_IDX_OFF);
971 
972 	if (adapter->ahw->fw_type == QLCNIC_UNIFIED_ROMIMAGE)
973 		offs = le32_to_cpu(data_desc->findex);
974 
975 	return (u8 *)&adapter->fw->data[offs];
976 }
977 
978 static u8 *
979 qlcnic_get_fw_offs(struct qlcnic_adapter *adapter)
980 {
981 	u32 offs = QLCNIC_IMAGE_START;
982 	struct uni_data_desc *data_desc;
983 
984 	data_desc = qlcnic_get_data_desc(adapter, QLCNIC_UNI_DIR_SECT_FW,
985 					 QLCNIC_UNI_FIRMWARE_IDX_OFF);
986 	if (adapter->ahw->fw_type == QLCNIC_UNIFIED_ROMIMAGE)
987 		offs = le32_to_cpu(data_desc->findex);
988 
989 	return (u8 *)&adapter->fw->data[offs];
990 }
991 
992 static u32 qlcnic_get_fw_size(struct qlcnic_adapter *adapter)
993 {
994 	struct uni_data_desc *data_desc;
995 	const u8 *unirom = adapter->fw->data;
996 
997 	data_desc = qlcnic_get_data_desc(adapter, QLCNIC_UNI_DIR_SECT_FW,
998 					 QLCNIC_UNI_FIRMWARE_IDX_OFF);
999 
1000 	if (adapter->ahw->fw_type == QLCNIC_UNIFIED_ROMIMAGE)
1001 		return le32_to_cpu(data_desc->size);
1002 	else
1003 		return le32_to_cpu(*(__le32 *)&unirom[QLCNIC_FW_SIZE_OFFSET]);
1004 }
1005 
1006 static u32 qlcnic_get_fw_version(struct qlcnic_adapter *adapter)
1007 {
1008 	struct uni_data_desc *fw_data_desc;
1009 	const struct firmware *fw = adapter->fw;
1010 	u32 major, minor, sub;
1011 	__le32 version_offset;
1012 	const u8 *ver_str;
1013 	int i, ret;
1014 
1015 	if (adapter->ahw->fw_type != QLCNIC_UNIFIED_ROMIMAGE) {
1016 		version_offset = *(__le32 *)&fw->data[QLCNIC_FW_VERSION_OFFSET];
1017 		return le32_to_cpu(version_offset);
1018 	}
1019 
1020 	fw_data_desc = qlcnic_get_data_desc(adapter, QLCNIC_UNI_DIR_SECT_FW,
1021 			QLCNIC_UNI_FIRMWARE_IDX_OFF);
1022 	ver_str = fw->data + le32_to_cpu(fw_data_desc->findex) +
1023 		  le32_to_cpu(fw_data_desc->size) - 17;
1024 
1025 	for (i = 0; i < 12; i++) {
1026 		if (!strncmp(&ver_str[i], "REV=", 4)) {
1027 			ret = sscanf(&ver_str[i+4], "%u.%u.%u ",
1028 					&major, &minor, &sub);
1029 			if (ret != 3)
1030 				return 0;
1031 			else
1032 				return major + (minor << 8) + (sub << 16);
1033 		}
1034 	}
1035 
1036 	return 0;
1037 }
1038 
1039 static u32 qlcnic_get_bios_version(struct qlcnic_adapter *adapter)
1040 {
1041 	const struct firmware *fw = adapter->fw;
1042 	u32 bios_ver, prd_off = adapter->file_prd_off;
1043 	u8 *version_offset;
1044 	__le32 temp;
1045 
1046 	if (adapter->ahw->fw_type != QLCNIC_UNIFIED_ROMIMAGE) {
1047 		version_offset = (u8 *)&fw->data[QLCNIC_BIOS_VERSION_OFFSET];
1048 		return le32_to_cpu(*(__le32 *)version_offset);
1049 	}
1050 
1051 	temp = *((__le32 *)(&fw->data[prd_off]) + QLCNIC_UNI_BIOS_VERSION_OFF);
1052 	bios_ver = le32_to_cpu(temp);
1053 
1054 	return (bios_ver << 16) + ((bios_ver >> 8) & 0xff00) + (bios_ver >> 24);
1055 }
1056 
1057 static void qlcnic_rom_lock_recovery(struct qlcnic_adapter *adapter)
1058 {
1059 	if (qlcnic_pcie_sem_lock(adapter, 2, QLCNIC_ROM_LOCK_ID))
1060 		dev_info(&adapter->pdev->dev, "Resetting rom_lock\n");
1061 
1062 	qlcnic_pcie_sem_unlock(adapter, 2);
1063 }
1064 
1065 static int
1066 qlcnic_check_fw_hearbeat(struct qlcnic_adapter *adapter)
1067 {
1068 	u32 heartbeat, ret = -EIO;
1069 	int retries = QLCNIC_HEARTBEAT_CHECK_RETRY_COUNT;
1070 
1071 	adapter->heartbeat = QLC_SHARED_REG_RD32(adapter,
1072 						 QLCNIC_PEG_ALIVE_COUNTER);
1073 
1074 	do {
1075 		msleep(QLCNIC_HEARTBEAT_PERIOD_MSECS);
1076 		heartbeat = QLC_SHARED_REG_RD32(adapter,
1077 						QLCNIC_PEG_ALIVE_COUNTER);
1078 		if (heartbeat != adapter->heartbeat) {
1079 			ret = QLCNIC_RCODE_SUCCESS;
1080 			break;
1081 		}
1082 	} while (--retries);
1083 
1084 	return ret;
1085 }
1086 
1087 int
1088 qlcnic_need_fw_reset(struct qlcnic_adapter *adapter)
1089 {
1090 	if ((adapter->flags & QLCNIC_FW_HANG) ||
1091 			qlcnic_check_fw_hearbeat(adapter)) {
1092 		qlcnic_rom_lock_recovery(adapter);
1093 		return 1;
1094 	}
1095 
1096 	if (adapter->need_fw_reset)
1097 		return 1;
1098 
1099 	if (adapter->fw)
1100 		return 1;
1101 
1102 	return 0;
1103 }
1104 
1105 static const char *fw_name[] = {
1106 	QLCNIC_UNIFIED_ROMIMAGE_NAME,
1107 	QLCNIC_FLASH_ROMIMAGE_NAME,
1108 };
1109 
1110 int
1111 qlcnic_load_firmware(struct qlcnic_adapter *adapter)
1112 {
1113 	__le64 *ptr64;
1114 	u32 i, flashaddr, size;
1115 	const struct firmware *fw = adapter->fw;
1116 	struct pci_dev *pdev = adapter->pdev;
1117 
1118 	dev_info(&pdev->dev, "loading firmware from %s\n",
1119 		 fw_name[adapter->ahw->fw_type]);
1120 
1121 	if (fw) {
1122 		u64 data;
1123 
1124 		size = (QLCNIC_IMAGE_START - QLCNIC_BOOTLD_START) / 8;
1125 
1126 		ptr64 = (__le64 *)qlcnic_get_bootld_offs(adapter);
1127 		flashaddr = QLCNIC_BOOTLD_START;
1128 
1129 		for (i = 0; i < size; i++) {
1130 			data = le64_to_cpu(ptr64[i]);
1131 
1132 			if (qlcnic_pci_mem_write_2M(adapter, flashaddr, data))
1133 				return -EIO;
1134 
1135 			flashaddr += 8;
1136 		}
1137 
1138 		size = qlcnic_get_fw_size(adapter) / 8;
1139 
1140 		ptr64 = (__le64 *)qlcnic_get_fw_offs(adapter);
1141 		flashaddr = QLCNIC_IMAGE_START;
1142 
1143 		for (i = 0; i < size; i++) {
1144 			data = le64_to_cpu(ptr64[i]);
1145 
1146 			if (qlcnic_pci_mem_write_2M(adapter,
1147 						flashaddr, data))
1148 				return -EIO;
1149 
1150 			flashaddr += 8;
1151 		}
1152 
1153 		size = qlcnic_get_fw_size(adapter) % 8;
1154 		if (size) {
1155 			data = le64_to_cpu(ptr64[i]);
1156 
1157 			if (qlcnic_pci_mem_write_2M(adapter,
1158 						flashaddr, data))
1159 				return -EIO;
1160 		}
1161 
1162 	} else {
1163 		u64 data;
1164 		u32 hi, lo;
1165 		int ret;
1166 		struct qlcnic_flt_entry bootld_entry;
1167 
1168 		ret = qlcnic_get_flt_entry(adapter, QLCNIC_BOOTLD_REGION,
1169 					&bootld_entry);
1170 		if (!ret) {
1171 			size = bootld_entry.size / 8;
1172 			flashaddr = bootld_entry.start_addr;
1173 		} else {
1174 			size = (QLCNIC_IMAGE_START - QLCNIC_BOOTLD_START) / 8;
1175 			flashaddr = QLCNIC_BOOTLD_START;
1176 			dev_info(&pdev->dev,
1177 				"using legacy method to get flash fw region");
1178 		}
1179 
1180 		for (i = 0; i < size; i++) {
1181 			if (qlcnic_rom_fast_read(adapter,
1182 					flashaddr, (int *)&lo) != 0)
1183 				return -EIO;
1184 			if (qlcnic_rom_fast_read(adapter,
1185 					flashaddr + 4, (int *)&hi) != 0)
1186 				return -EIO;
1187 
1188 			data = (((u64)hi << 32) | lo);
1189 
1190 			if (qlcnic_pci_mem_write_2M(adapter,
1191 						flashaddr, data))
1192 				return -EIO;
1193 
1194 			flashaddr += 8;
1195 		}
1196 	}
1197 	usleep_range(1000, 1500);
1198 
1199 	QLCWR32(adapter, QLCNIC_CRB_PEG_NET_0 + 0x18, 0x1020);
1200 	QLCWR32(adapter, QLCNIC_ROMUSB_GLB_SW_RESET, 0x80001e);
1201 	return 0;
1202 }
1203 
1204 static int
1205 qlcnic_validate_firmware(struct qlcnic_adapter *adapter)
1206 {
1207 	u32 val;
1208 	u32 ver, bios, min_size;
1209 	struct pci_dev *pdev = adapter->pdev;
1210 	const struct firmware *fw = adapter->fw;
1211 	u8 fw_type = adapter->ahw->fw_type;
1212 
1213 	if (fw_type == QLCNIC_UNIFIED_ROMIMAGE) {
1214 		if (qlcnic_validate_unified_romimage(adapter))
1215 			return -EINVAL;
1216 
1217 		min_size = QLCNIC_UNI_FW_MIN_SIZE;
1218 	} else {
1219 		val = le32_to_cpu(*(__le32 *)&fw->data[QLCNIC_FW_MAGIC_OFFSET]);
1220 		if (val != QLCNIC_BDINFO_MAGIC)
1221 			return -EINVAL;
1222 
1223 		min_size = QLCNIC_FW_MIN_SIZE;
1224 	}
1225 
1226 	if (fw->size < min_size)
1227 		return -EINVAL;
1228 
1229 	val = qlcnic_get_fw_version(adapter);
1230 	ver = QLCNIC_DECODE_VERSION(val);
1231 
1232 	if (ver < QLCNIC_MIN_FW_VERSION) {
1233 		dev_err(&pdev->dev,
1234 				"%s: firmware version %d.%d.%d unsupported\n",
1235 		fw_name[fw_type], _major(ver), _minor(ver), _build(ver));
1236 		return -EINVAL;
1237 	}
1238 
1239 	val = qlcnic_get_bios_version(adapter);
1240 	qlcnic_rom_fast_read(adapter, QLCNIC_BIOS_VERSION_OFFSET, (int *)&bios);
1241 	if (val != bios) {
1242 		dev_err(&pdev->dev, "%s: firmware bios is incompatible\n",
1243 				fw_name[fw_type]);
1244 		return -EINVAL;
1245 	}
1246 
1247 	QLC_SHARED_REG_WR32(adapter, QLCNIC_FW_IMG_VALID, QLCNIC_BDINFO_MAGIC);
1248 	return 0;
1249 }
1250 
1251 static void
1252 qlcnic_get_next_fwtype(struct qlcnic_adapter *adapter)
1253 {
1254 	u8 fw_type;
1255 
1256 	switch (adapter->ahw->fw_type) {
1257 	case QLCNIC_UNKNOWN_ROMIMAGE:
1258 		fw_type = QLCNIC_UNIFIED_ROMIMAGE;
1259 		break;
1260 
1261 	case QLCNIC_UNIFIED_ROMIMAGE:
1262 	default:
1263 		fw_type = QLCNIC_FLASH_ROMIMAGE;
1264 		break;
1265 	}
1266 
1267 	adapter->ahw->fw_type = fw_type;
1268 }
1269 
1270 
1271 
1272 void qlcnic_request_firmware(struct qlcnic_adapter *adapter)
1273 {
1274 	struct pci_dev *pdev = adapter->pdev;
1275 	int rc;
1276 
1277 	adapter->ahw->fw_type = QLCNIC_UNKNOWN_ROMIMAGE;
1278 
1279 next:
1280 	qlcnic_get_next_fwtype(adapter);
1281 
1282 	if (adapter->ahw->fw_type == QLCNIC_FLASH_ROMIMAGE) {
1283 		adapter->fw = NULL;
1284 	} else {
1285 		rc = request_firmware(&adapter->fw,
1286 				      fw_name[adapter->ahw->fw_type],
1287 				      &pdev->dev);
1288 		if (rc != 0)
1289 			goto next;
1290 
1291 		rc = qlcnic_validate_firmware(adapter);
1292 		if (rc != 0) {
1293 			release_firmware(adapter->fw);
1294 			usleep_range(1000, 1500);
1295 			goto next;
1296 		}
1297 	}
1298 }
1299 
1300 
1301 void
1302 qlcnic_release_firmware(struct qlcnic_adapter *adapter)
1303 {
1304 	release_firmware(adapter->fw);
1305 	adapter->fw = NULL;
1306 }
1307