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   1// SPDX-License-Identifier: GPL-2.0-only
   2/*
   3 * QLogic qlcnic NIC Driver
   4 * Copyright (c) 2009-2013 QLogic Corporation
   5 */
   6
   7#include "qlcnic.h"
   8#include "qlcnic_hw.h"
   9
  10struct crb_addr_pair {
  11	u32 addr;
  12	u32 data;
  13};
  14
  15#define QLCNIC_MAX_CRB_XFORM 60
  16static unsigned int crb_addr_xform[QLCNIC_MAX_CRB_XFORM];
  17
  18#define crb_addr_transform(name) \
  19	(crb_addr_xform[QLCNIC_HW_PX_MAP_CRB_##name] = \
  20	QLCNIC_HW_CRB_HUB_AGT_ADR_##name << 20)
  21
  22#define QLCNIC_ADDR_ERROR (0xffffffff)
  23
  24static int
  25qlcnic_check_fw_hearbeat(struct qlcnic_adapter *adapter);
  26
  27static void crb_addr_transform_setup(void)
  28{
  29	crb_addr_transform(XDMA);
  30	crb_addr_transform(TIMR);
  31	crb_addr_transform(SRE);
  32	crb_addr_transform(SQN3);
  33	crb_addr_transform(SQN2);
  34	crb_addr_transform(SQN1);
  35	crb_addr_transform(SQN0);
  36	crb_addr_transform(SQS3);
  37	crb_addr_transform(SQS2);
  38	crb_addr_transform(SQS1);
  39	crb_addr_transform(SQS0);
  40	crb_addr_transform(RPMX7);
  41	crb_addr_transform(RPMX6);
  42	crb_addr_transform(RPMX5);
  43	crb_addr_transform(RPMX4);
  44	crb_addr_transform(RPMX3);
  45	crb_addr_transform(RPMX2);
  46	crb_addr_transform(RPMX1);
  47	crb_addr_transform(RPMX0);
  48	crb_addr_transform(ROMUSB);
  49	crb_addr_transform(SN);
  50	crb_addr_transform(QMN);
  51	crb_addr_transform(QMS);
  52	crb_addr_transform(PGNI);
  53	crb_addr_transform(PGND);
  54	crb_addr_transform(PGN3);
  55	crb_addr_transform(PGN2);
  56	crb_addr_transform(PGN1);
  57	crb_addr_transform(PGN0);
  58	crb_addr_transform(PGSI);
  59	crb_addr_transform(PGSD);
  60	crb_addr_transform(PGS3);
  61	crb_addr_transform(PGS2);
  62	crb_addr_transform(PGS1);
  63	crb_addr_transform(PGS0);
  64	crb_addr_transform(PS);
  65	crb_addr_transform(PH);
  66	crb_addr_transform(NIU);
  67	crb_addr_transform(I2Q);
  68	crb_addr_transform(EG);
  69	crb_addr_transform(MN);
  70	crb_addr_transform(MS);
  71	crb_addr_transform(CAS2);
  72	crb_addr_transform(CAS1);
  73	crb_addr_transform(CAS0);
  74	crb_addr_transform(CAM);
  75	crb_addr_transform(C2C1);
  76	crb_addr_transform(C2C0);
  77	crb_addr_transform(SMB);
  78	crb_addr_transform(OCM0);
  79	crb_addr_transform(I2C0);
  80}
  81
  82void qlcnic_release_rx_buffers(struct qlcnic_adapter *adapter)
  83{
  84	struct qlcnic_recv_context *recv_ctx;
  85	struct qlcnic_host_rds_ring *rds_ring;
  86	struct qlcnic_rx_buffer *rx_buf;
  87	int i, ring;
  88
  89	recv_ctx = adapter->recv_ctx;
  90	for (ring = 0; ring < adapter->max_rds_rings; ring++) {
  91		rds_ring = &recv_ctx->rds_rings[ring];
  92		for (i = 0; i < rds_ring->num_desc; ++i) {
  93			rx_buf = &(rds_ring->rx_buf_arr[i]);
  94			if (rx_buf->skb == NULL)
  95				continue;
  96
  97			dma_unmap_single(&adapter->pdev->dev, rx_buf->dma,
  98					 rds_ring->dma_size, DMA_FROM_DEVICE);
  99
 100			dev_kfree_skb_any(rx_buf->skb);
 101		}
 102	}
 103}
 104
 105void qlcnic_reset_rx_buffers_list(struct qlcnic_adapter *adapter)
 106{
 107	struct qlcnic_recv_context *recv_ctx;
 108	struct qlcnic_host_rds_ring *rds_ring;
 109	struct qlcnic_rx_buffer *rx_buf;
 110	int i, ring;
 111
 112	recv_ctx = adapter->recv_ctx;
 113	for (ring = 0; ring < adapter->max_rds_rings; ring++) {
 114		rds_ring = &recv_ctx->rds_rings[ring];
 115
 116		INIT_LIST_HEAD(&rds_ring->free_list);
 117
 118		rx_buf = rds_ring->rx_buf_arr;
 119		for (i = 0; i < rds_ring->num_desc; i++) {
 120			list_add_tail(&rx_buf->list,
 121					&rds_ring->free_list);
 122			rx_buf++;
 123		}
 124	}
 125}
 126
 127void qlcnic_release_tx_buffers(struct qlcnic_adapter *adapter,
 128			       struct qlcnic_host_tx_ring *tx_ring)
 129{
 130	struct qlcnic_cmd_buffer *cmd_buf;
 131	struct qlcnic_skb_frag *buffrag;
 132	int i, j;
 133
 134	spin_lock(&tx_ring->tx_clean_lock);
 135
 136	cmd_buf = tx_ring->cmd_buf_arr;
 137	for (i = 0; i < tx_ring->num_desc; i++) {
 138		buffrag = cmd_buf->frag_array;
 139		if (buffrag->dma) {
 140			dma_unmap_single(&adapter->pdev->dev, buffrag->dma,
 141					 buffrag->length, DMA_TO_DEVICE);
 142			buffrag->dma = 0ULL;
 143		}
 144		for (j = 1; j < cmd_buf->frag_count; j++) {
 145			buffrag++;
 146			if (buffrag->dma) {
 147				dma_unmap_page(&adapter->pdev->dev,
 148					       buffrag->dma, buffrag->length,
 149					       DMA_TO_DEVICE);
 150				buffrag->dma = 0ULL;
 151			}
 152		}
 153		if (cmd_buf->skb) {
 154			dev_kfree_skb_any(cmd_buf->skb);
 155			cmd_buf->skb = NULL;
 156		}
 157		cmd_buf++;
 158	}
 159
 160	spin_unlock(&tx_ring->tx_clean_lock);
 161}
 162
 163void qlcnic_free_sw_resources(struct qlcnic_adapter *adapter)
 164{
 165	struct qlcnic_recv_context *recv_ctx;
 166	struct qlcnic_host_rds_ring *rds_ring;
 167	int ring;
 168
 169	recv_ctx = adapter->recv_ctx;
 170
 171	if (recv_ctx->rds_rings == NULL)
 172		return;
 173
 174	for (ring = 0; ring < adapter->max_rds_rings; ring++) {
 175		rds_ring = &recv_ctx->rds_rings[ring];
 176		vfree(rds_ring->rx_buf_arr);
 177		rds_ring->rx_buf_arr = NULL;
 178	}
 179	kfree(recv_ctx->rds_rings);
 180}
 181
 182int qlcnic_alloc_sw_resources(struct qlcnic_adapter *adapter)
 183{
 184	struct qlcnic_recv_context *recv_ctx;
 185	struct qlcnic_host_rds_ring *rds_ring;
 186	struct qlcnic_host_sds_ring *sds_ring;
 187	struct qlcnic_rx_buffer *rx_buf;
 188	int ring, i;
 189
 190	recv_ctx = adapter->recv_ctx;
 191
 192	rds_ring = kcalloc(adapter->max_rds_rings,
 193			   sizeof(struct qlcnic_host_rds_ring), GFP_KERNEL);
 194	if (rds_ring == NULL)
 195		goto err_out;
 196
 197	recv_ctx->rds_rings = rds_ring;
 198
 199	for (ring = 0; ring < adapter->max_rds_rings; ring++) {
 200		rds_ring = &recv_ctx->rds_rings[ring];
 201		switch (ring) {
 202		case RCV_RING_NORMAL:
 203			rds_ring->num_desc = adapter->num_rxd;
 204			rds_ring->dma_size = QLCNIC_P3P_RX_BUF_MAX_LEN;
 205			rds_ring->skb_size = rds_ring->dma_size + NET_IP_ALIGN;
 206			break;
 207
 208		case RCV_RING_JUMBO:
 209			rds_ring->num_desc = adapter->num_jumbo_rxd;
 210			rds_ring->dma_size =
 211				QLCNIC_P3P_RX_JUMBO_BUF_MAX_LEN;
 212
 213			if (adapter->ahw->capabilities &
 214			    QLCNIC_FW_CAPABILITY_HW_LRO)
 215				rds_ring->dma_size += QLCNIC_LRO_BUFFER_EXTRA;
 216
 217			rds_ring->skb_size =
 218				rds_ring->dma_size + NET_IP_ALIGN;
 219			break;
 220		}
 221		rds_ring->rx_buf_arr = vzalloc(RCV_BUFF_RINGSIZE(rds_ring));
 222		if (rds_ring->rx_buf_arr == NULL)
 223			goto err_out;
 224
 225		INIT_LIST_HEAD(&rds_ring->free_list);
 226		/*
 227		 * Now go through all of them, set reference handles
 228		 * and put them in the queues.
 229		 */
 230		rx_buf = rds_ring->rx_buf_arr;
 231		for (i = 0; i < rds_ring->num_desc; i++) {
 232			list_add_tail(&rx_buf->list,
 233					&rds_ring->free_list);
 234			rx_buf->ref_handle = i;
 235			rx_buf++;
 236		}
 237		spin_lock_init(&rds_ring->lock);
 238	}
 239
 240	for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
 241		sds_ring = &recv_ctx->sds_rings[ring];
 242		sds_ring->irq = adapter->msix_entries[ring].vector;
 243		sds_ring->adapter = adapter;
 244		sds_ring->num_desc = adapter->num_rxd;
 245		if (qlcnic_82xx_check(adapter)) {
 246			if (qlcnic_check_multi_tx(adapter) &&
 247			    !adapter->ahw->diag_test)
 248				sds_ring->tx_ring = &adapter->tx_ring[ring];
 249			else
 250				sds_ring->tx_ring = &adapter->tx_ring[0];
 251		}
 252		for (i = 0; i < NUM_RCV_DESC_RINGS; i++)
 253			INIT_LIST_HEAD(&sds_ring->free_list[i]);
 254	}
 255
 256	return 0;
 257
 258err_out:
 259	qlcnic_free_sw_resources(adapter);
 260	return -ENOMEM;
 261}
 262
 263/*
 264 * Utility to translate from internal Phantom CRB address
 265 * to external PCI CRB address.
 266 */
 267static u32 qlcnic_decode_crb_addr(u32 addr)
 268{
 269	int i;
 270	u32 base_addr, offset, pci_base;
 271
 272	crb_addr_transform_setup();
 273
 274	pci_base = QLCNIC_ADDR_ERROR;
 275	base_addr = addr & 0xfff00000;
 276	offset = addr & 0x000fffff;
 277
 278	for (i = 0; i < QLCNIC_MAX_CRB_XFORM; i++) {
 279		if (crb_addr_xform[i] == base_addr) {
 280			pci_base = i << 20;
 281			break;
 282		}
 283	}
 284	if (pci_base == QLCNIC_ADDR_ERROR)
 285		return pci_base;
 286	else
 287		return pci_base + offset;
 288}
 289
 290#define QLCNIC_MAX_ROM_WAIT_USEC	100
 291
 292static int qlcnic_wait_rom_done(struct qlcnic_adapter *adapter)
 293{
 294	long timeout = 0;
 295	long done = 0;
 296	int err = 0;
 297
 298	cond_resched();
 299	while (done == 0) {
 300		done = QLCRD32(adapter, QLCNIC_ROMUSB_GLB_STATUS, &err);
 301		done &= 2;
 302		if (++timeout >= QLCNIC_MAX_ROM_WAIT_USEC) {
 303			dev_err(&adapter->pdev->dev,
 304				"Timeout reached  waiting for rom done");
 305			return -EIO;
 306		}
 307		udelay(1);
 308	}
 309	return 0;
 310}
 311
 312static int do_rom_fast_read(struct qlcnic_adapter *adapter,
 313			    u32 addr, u32 *valp)
 314{
 315	int err = 0;
 316
 317	QLCWR32(adapter, QLCNIC_ROMUSB_ROM_ADDRESS, addr);
 318	QLCWR32(adapter, QLCNIC_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
 319	QLCWR32(adapter, QLCNIC_ROMUSB_ROM_ABYTE_CNT, 3);
 320	QLCWR32(adapter, QLCNIC_ROMUSB_ROM_INSTR_OPCODE, 0xb);
 321	if (qlcnic_wait_rom_done(adapter)) {
 322		dev_err(&adapter->pdev->dev, "Error waiting for rom done\n");
 323		return -EIO;
 324	}
 325	/* reset abyte_cnt and dummy_byte_cnt */
 326	QLCWR32(adapter, QLCNIC_ROMUSB_ROM_ABYTE_CNT, 0);
 327	udelay(10);
 328	QLCWR32(adapter, QLCNIC_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
 329
 330	*valp = QLCRD32(adapter, QLCNIC_ROMUSB_ROM_RDATA, &err);
 331	if (err == -EIO)
 332		return err;
 333	return 0;
 334}
 335
 336static int do_rom_fast_read_words(struct qlcnic_adapter *adapter, int addr,
 337				  u8 *bytes, size_t size)
 338{
 339	int addridx;
 340	int ret = 0;
 341
 342	for (addridx = addr; addridx < (addr + size); addridx += 4) {
 343		int v;
 344		ret = do_rom_fast_read(adapter, addridx, &v);
 345		if (ret != 0)
 346			break;
 347		*(__le32 *)bytes = cpu_to_le32(v);
 348		bytes += 4;
 349	}
 350
 351	return ret;
 352}
 353
 354int
 355qlcnic_rom_fast_read_words(struct qlcnic_adapter *adapter, int addr,
 356				u8 *bytes, size_t size)
 357{
 358	int ret;
 359
 360	ret = qlcnic_rom_lock(adapter);
 361	if (ret < 0)
 362		return ret;
 363
 364	ret = do_rom_fast_read_words(adapter, addr, bytes, size);
 365
 366	qlcnic_rom_unlock(adapter);
 367	return ret;
 368}
 369
 370int qlcnic_rom_fast_read(struct qlcnic_adapter *adapter, u32 addr, u32 *valp)
 371{
 372	int ret;
 373
 374	if (qlcnic_rom_lock(adapter) != 0)
 375		return -EIO;
 376
 377	ret = do_rom_fast_read(adapter, addr, valp);
 378	qlcnic_rom_unlock(adapter);
 379	return ret;
 380}
 381
 382int qlcnic_pinit_from_rom(struct qlcnic_adapter *adapter)
 383{
 384	int addr, err = 0;
 385	int i, n, init_delay;
 386	struct crb_addr_pair *buf;
 387	unsigned offset;
 388	u32 off, val;
 389	struct pci_dev *pdev = adapter->pdev;
 390
 391	QLC_SHARED_REG_WR32(adapter, QLCNIC_CMDPEG_STATE, 0);
 392	QLC_SHARED_REG_WR32(adapter, QLCNIC_RCVPEG_STATE, 0);
 393
 394	/* Halt all the indiviual PEGs and other blocks */
 395	/* disable all I2Q */
 396	QLCWR32(adapter, QLCNIC_CRB_I2Q + 0x10, 0x0);
 397	QLCWR32(adapter, QLCNIC_CRB_I2Q + 0x14, 0x0);
 398	QLCWR32(adapter, QLCNIC_CRB_I2Q + 0x18, 0x0);
 399	QLCWR32(adapter, QLCNIC_CRB_I2Q + 0x1c, 0x0);
 400	QLCWR32(adapter, QLCNIC_CRB_I2Q + 0x20, 0x0);
 401	QLCWR32(adapter, QLCNIC_CRB_I2Q + 0x24, 0x0);
 402
 403	/* disable all niu interrupts */
 404	QLCWR32(adapter, QLCNIC_CRB_NIU + 0x40, 0xff);
 405	/* disable xge rx/tx */
 406	QLCWR32(adapter, QLCNIC_CRB_NIU + 0x70000, 0x00);
 407	/* disable xg1 rx/tx */
 408	QLCWR32(adapter, QLCNIC_CRB_NIU + 0x80000, 0x00);
 409	/* disable sideband mac */
 410	QLCWR32(adapter, QLCNIC_CRB_NIU + 0x90000, 0x00);
 411	/* disable ap0 mac */
 412	QLCWR32(adapter, QLCNIC_CRB_NIU + 0xa0000, 0x00);
 413	/* disable ap1 mac */
 414	QLCWR32(adapter, QLCNIC_CRB_NIU + 0xb0000, 0x00);
 415
 416	/* halt sre */
 417	val = QLCRD32(adapter, QLCNIC_CRB_SRE + 0x1000, &err);
 418	if (err == -EIO)
 419		return err;
 420	QLCWR32(adapter, QLCNIC_CRB_SRE + 0x1000, val & (~(0x1)));
 421
 422	/* halt epg */
 423	QLCWR32(adapter, QLCNIC_CRB_EPG + 0x1300, 0x1);
 424
 425	/* halt timers */
 426	QLCWR32(adapter, QLCNIC_CRB_TIMER + 0x0, 0x0);
 427	QLCWR32(adapter, QLCNIC_CRB_TIMER + 0x8, 0x0);
 428	QLCWR32(adapter, QLCNIC_CRB_TIMER + 0x10, 0x0);
 429	QLCWR32(adapter, QLCNIC_CRB_TIMER + 0x18, 0x0);
 430	QLCWR32(adapter, QLCNIC_CRB_TIMER + 0x100, 0x0);
 431	QLCWR32(adapter, QLCNIC_CRB_TIMER + 0x200, 0x0);
 432	/* halt pegs */
 433	QLCWR32(adapter, QLCNIC_CRB_PEG_NET_0 + 0x3c, 1);
 434	QLCWR32(adapter, QLCNIC_CRB_PEG_NET_1 + 0x3c, 1);
 435	QLCWR32(adapter, QLCNIC_CRB_PEG_NET_2 + 0x3c, 1);
 436	QLCWR32(adapter, QLCNIC_CRB_PEG_NET_3 + 0x3c, 1);
 437	QLCWR32(adapter, QLCNIC_CRB_PEG_NET_4 + 0x3c, 1);
 438	msleep(20);
 439
 440	/* big hammer don't reset CAM block on reset */
 441	QLCWR32(adapter, QLCNIC_ROMUSB_GLB_SW_RESET, 0xfeffffff);
 442
 443	/* Init HW CRB block */
 444	if (qlcnic_rom_fast_read(adapter, 0, &n) != 0 || (n != 0xcafecafe) ||
 445			qlcnic_rom_fast_read(adapter, 4, &n) != 0) {
 446		dev_err(&pdev->dev, "ERROR Reading crb_init area: val:%x\n", n);
 447		return -EIO;
 448	}
 449	offset = n & 0xffffU;
 450	n = (n >> 16) & 0xffffU;
 451
 452	if (n >= 1024) {
 453		dev_err(&pdev->dev, "QLOGIC card flash not initialized.\n");
 454		return -EIO;
 455	}
 456
 457	buf = kcalloc(n, sizeof(struct crb_addr_pair), GFP_KERNEL);
 458	if (buf == NULL)
 459		return -ENOMEM;
 460
 461	for (i = 0; i < n; i++) {
 462		if (qlcnic_rom_fast_read(adapter, 8*i + 4*offset, &val) != 0 ||
 463		qlcnic_rom_fast_read(adapter, 8*i + 4*offset + 4, &addr) != 0) {
 464			kfree(buf);
 465			return -EIO;
 466		}
 467
 468		buf[i].addr = addr;
 469		buf[i].data = val;
 470	}
 471
 472	for (i = 0; i < n; i++) {
 473
 474		off = qlcnic_decode_crb_addr(buf[i].addr);
 475		if (off == QLCNIC_ADDR_ERROR) {
 476			dev_err(&pdev->dev, "CRB init value out of range %x\n",
 477					buf[i].addr);
 478			continue;
 479		}
 480		off += QLCNIC_PCI_CRBSPACE;
 481
 482		if (off & 1)
 483			continue;
 484
 485		/* skipping cold reboot MAGIC */
 486		if (off == QLCNIC_CAM_RAM(0x1fc))
 487			continue;
 488		if (off == (QLCNIC_CRB_I2C0 + 0x1c))
 489			continue;
 490		if (off == (ROMUSB_GLB + 0xbc)) /* do not reset PCI */
 491			continue;
 492		if (off == (ROMUSB_GLB + 0xa8))
 493			continue;
 494		if (off == (ROMUSB_GLB + 0xc8)) /* core clock */
 495			continue;
 496		if (off == (ROMUSB_GLB + 0x24)) /* MN clock */
 497			continue;
 498		if (off == (ROMUSB_GLB + 0x1c)) /* MS clock */
 499			continue;
 500		if ((off & 0x0ff00000) == QLCNIC_CRB_DDR_NET)
 501			continue;
 502		/* skip the function enable register */
 503		if (off == QLCNIC_PCIE_REG(PCIE_SETUP_FUNCTION))
 504			continue;
 505		if (off == QLCNIC_PCIE_REG(PCIE_SETUP_FUNCTION2))
 506			continue;
 507		if ((off & 0x0ff00000) == QLCNIC_CRB_SMB)
 508			continue;
 509
 510		init_delay = 1;
 511		/* After writing this register, HW needs time for CRB */
 512		/* to quiet down (else crb_window returns 0xffffffff) */
 513		if (off == QLCNIC_ROMUSB_GLB_SW_RESET)
 514			init_delay = 1000;
 515
 516		QLCWR32(adapter, off, buf[i].data);
 517
 518		msleep(init_delay);
 519	}
 520	kfree(buf);
 521
 522	/* Initialize protocol process engine */
 523	QLCWR32(adapter, QLCNIC_CRB_PEG_NET_D + 0xec, 0x1e);
 524	QLCWR32(adapter, QLCNIC_CRB_PEG_NET_D + 0x4c, 8);
 525	QLCWR32(adapter, QLCNIC_CRB_PEG_NET_I + 0x4c, 8);
 526	QLCWR32(adapter, QLCNIC_CRB_PEG_NET_0 + 0x8, 0);
 527	QLCWR32(adapter, QLCNIC_CRB_PEG_NET_0 + 0xc, 0);
 528	QLCWR32(adapter, QLCNIC_CRB_PEG_NET_1 + 0x8, 0);
 529	QLCWR32(adapter, QLCNIC_CRB_PEG_NET_1 + 0xc, 0);
 530	QLCWR32(adapter, QLCNIC_CRB_PEG_NET_2 + 0x8, 0);
 531	QLCWR32(adapter, QLCNIC_CRB_PEG_NET_2 + 0xc, 0);
 532	QLCWR32(adapter, QLCNIC_CRB_PEG_NET_3 + 0x8, 0);
 533	QLCWR32(adapter, QLCNIC_CRB_PEG_NET_3 + 0xc, 0);
 534	QLCWR32(adapter, QLCNIC_CRB_PEG_NET_4 + 0x8, 0);
 535	QLCWR32(adapter, QLCNIC_CRB_PEG_NET_4 + 0xc, 0);
 536	usleep_range(1000, 1500);
 537
 538	QLC_SHARED_REG_WR32(adapter, QLCNIC_PEG_HALT_STATUS1, 0);
 539	QLC_SHARED_REG_WR32(adapter, QLCNIC_PEG_HALT_STATUS2, 0);
 540
 541	return 0;
 542}
 543
 544static int qlcnic_cmd_peg_ready(struct qlcnic_adapter *adapter)
 545{
 546	u32 val;
 547	int retries = QLCNIC_CMDPEG_CHECK_RETRY_COUNT;
 548
 549	do {
 550		val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CMDPEG_STATE);
 551
 552		switch (val) {
 553		case PHAN_INITIALIZE_COMPLETE:
 554		case PHAN_INITIALIZE_ACK:
 555			return 0;
 556		case PHAN_INITIALIZE_FAILED:
 557			goto out_err;
 558		default:
 559			break;
 560		}
 561
 562		msleep(QLCNIC_CMDPEG_CHECK_DELAY);
 563
 564	} while (--retries);
 565
 566	QLC_SHARED_REG_WR32(adapter, QLCNIC_CMDPEG_STATE,
 567			    PHAN_INITIALIZE_FAILED);
 568
 569out_err:
 570	dev_err(&adapter->pdev->dev, "Command Peg initialization not "
 571		      "complete, state: 0x%x.\n", val);
 572	return -EIO;
 573}
 574
 575static int
 576qlcnic_receive_peg_ready(struct qlcnic_adapter *adapter)
 577{
 578	u32 val;
 579	int retries = QLCNIC_RCVPEG_CHECK_RETRY_COUNT;
 580
 581	do {
 582		val = QLC_SHARED_REG_RD32(adapter, QLCNIC_RCVPEG_STATE);
 583
 584		if (val == PHAN_PEG_RCV_INITIALIZED)
 585			return 0;
 586
 587		msleep(QLCNIC_RCVPEG_CHECK_DELAY);
 588
 589	} while (--retries);
 590
 591	dev_err(&adapter->pdev->dev, "Receive Peg initialization not complete, state: 0x%x.\n",
 592		val);
 593	return -EIO;
 594}
 595
 596int
 597qlcnic_check_fw_status(struct qlcnic_adapter *adapter)
 598{
 599	int err;
 600
 601	err = qlcnic_cmd_peg_ready(adapter);
 602	if (err)
 603		return err;
 604
 605	err = qlcnic_receive_peg_ready(adapter);
 606	if (err)
 607		return err;
 608
 609	QLC_SHARED_REG_WR32(adapter, QLCNIC_CMDPEG_STATE, PHAN_INITIALIZE_ACK);
 610
 611	return err;
 612}
 613
 614int
 615qlcnic_setup_idc_param(struct qlcnic_adapter *adapter) {
 616
 617	int timeo;
 618	u32 val;
 619
 620	val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_PARTITION_INFO);
 621	val = QLC_DEV_GET_DRV(val, adapter->portnum);
 622	if ((val & 0x3) != QLCNIC_TYPE_NIC) {
 623		dev_err(&adapter->pdev->dev,
 624			"Not an Ethernet NIC func=%u\n", val);
 625		return -EIO;
 626	}
 627	adapter->ahw->physical_port = (val >> 2);
 628	if (qlcnic_rom_fast_read(adapter, QLCNIC_ROM_DEV_INIT_TIMEOUT, &timeo))
 629		timeo = QLCNIC_INIT_TIMEOUT_SECS;
 630
 631	adapter->dev_init_timeo = timeo;
 632
 633	if (qlcnic_rom_fast_read(adapter, QLCNIC_ROM_DRV_RESET_TIMEOUT, &timeo))
 634		timeo = QLCNIC_RESET_TIMEOUT_SECS;
 635
 636	adapter->reset_ack_timeo = timeo;
 637
 638	return 0;
 639}
 640
 641static int qlcnic_get_flt_entry(struct qlcnic_adapter *adapter, u8 region,
 642				struct qlcnic_flt_entry *region_entry)
 643{
 644	struct qlcnic_flt_header flt_hdr;
 645	struct qlcnic_flt_entry *flt_entry;
 646	int i = 0, ret;
 647	u32 entry_size;
 648
 649	memset(region_entry, 0, sizeof(struct qlcnic_flt_entry));
 650	ret = qlcnic_rom_fast_read_words(adapter, QLCNIC_FLT_LOCATION,
 651					 (u8 *)&flt_hdr,
 652					 sizeof(struct qlcnic_flt_header));
 653	if (ret) {
 654		dev_warn(&adapter->pdev->dev,
 655			 "error reading flash layout header\n");
 656		return -EIO;
 657	}
 658
 659	entry_size = flt_hdr.len - sizeof(struct qlcnic_flt_header);
 660	flt_entry = vzalloc(entry_size);
 661	if (flt_entry == NULL)
 662		return -EIO;
 663
 664	ret = qlcnic_rom_fast_read_words(adapter, QLCNIC_FLT_LOCATION +
 665					 sizeof(struct qlcnic_flt_header),
 666					 (u8 *)flt_entry, entry_size);
 667	if (ret) {
 668		dev_warn(&adapter->pdev->dev,
 669			 "error reading flash layout entries\n");
 670		goto err_out;
 671	}
 672
 673	while (i < (entry_size/sizeof(struct qlcnic_flt_entry))) {
 674		if (flt_entry[i].region == region)
 675			break;
 676		i++;
 677	}
 678	if (i >= (entry_size/sizeof(struct qlcnic_flt_entry))) {
 679		dev_warn(&adapter->pdev->dev,
 680			 "region=%x not found in %d regions\n", region, i);
 681		ret = -EIO;
 682		goto err_out;
 683	}
 684	memcpy(region_entry, &flt_entry[i], sizeof(struct qlcnic_flt_entry));
 685
 686err_out:
 687	vfree(flt_entry);
 688	return ret;
 689}
 690
 691int
 692qlcnic_check_flash_fw_ver(struct qlcnic_adapter *adapter)
 693{
 694	struct qlcnic_flt_entry fw_entry;
 695	u32 ver = -1, min_ver;
 696	int ret;
 697
 698	if (adapter->ahw->revision_id == QLCNIC_P3P_C0)
 699		ret = qlcnic_get_flt_entry(adapter, QLCNIC_C0_FW_IMAGE_REGION,
 700						 &fw_entry);
 701	else
 702		ret = qlcnic_get_flt_entry(adapter, QLCNIC_B0_FW_IMAGE_REGION,
 703						 &fw_entry);
 704
 705	if (!ret)
 706		/* 0-4:-signature,  4-8:-fw version */
 707		qlcnic_rom_fast_read(adapter, fw_entry.start_addr + 4,
 708				     (int *)&ver);
 709	else
 710		qlcnic_rom_fast_read(adapter, QLCNIC_FW_VERSION_OFFSET,
 711				     (int *)&ver);
 712
 713	ver = QLCNIC_DECODE_VERSION(ver);
 714	min_ver = QLCNIC_MIN_FW_VERSION;
 715
 716	if (ver < min_ver) {
 717		dev_err(&adapter->pdev->dev,
 718			"firmware version %d.%d.%d unsupported."
 719			"Min supported version %d.%d.%d\n",
 720			_major(ver), _minor(ver), _build(ver),
 721			_major(min_ver), _minor(min_ver), _build(min_ver));
 722		return -EINVAL;
 723	}
 724
 725	return 0;
 726}
 727
 728static int
 729qlcnic_has_mn(struct qlcnic_adapter *adapter)
 730{
 731	u32 capability = 0;
 732	int err = 0;
 733
 734	capability = QLCRD32(adapter, QLCNIC_PEG_TUNE_CAPABILITY, &err);
 735	if (err == -EIO)
 736		return err;
 737	if (capability & QLCNIC_PEG_TUNE_MN_PRESENT)
 738		return 1;
 739
 740	return 0;
 741}
 742
 743static
 744struct uni_table_desc *qlcnic_get_table_desc(const u8 *unirom, int section)
 745{
 746	u32 i, entries;
 747	struct uni_table_desc *directory = (struct uni_table_desc *) &unirom[0];
 748	entries = le32_to_cpu(directory->num_entries);
 749
 750	for (i = 0; i < entries; i++) {
 751
 752		u32 offs = le32_to_cpu(directory->findex) +
 753			   i * le32_to_cpu(directory->entry_size);
 754		u32 tab_type = le32_to_cpu(*((__le32 *)&unirom[offs] + 8));
 755
 756		if (tab_type == section)
 757			return (struct uni_table_desc *) &unirom[offs];
 758	}
 759
 760	return NULL;
 761}
 762
 763#define FILEHEADER_SIZE (14 * 4)
 764
 765static int
 766qlcnic_validate_header(struct qlcnic_adapter *adapter)
 767{
 768	const u8 *unirom = adapter->fw->data;
 769	struct uni_table_desc *directory = (struct uni_table_desc *) &unirom[0];
 770	u32 entries, entry_size, tab_size, fw_file_size;
 771
 772	fw_file_size = adapter->fw->size;
 773
 774	if (fw_file_size < FILEHEADER_SIZE)
 775		return -EINVAL;
 776
 777	entries = le32_to_cpu(directory->num_entries);
 778	entry_size = le32_to_cpu(directory->entry_size);
 779	tab_size = le32_to_cpu(directory->findex) + (entries * entry_size);
 780
 781	if (fw_file_size < tab_size)
 782		return -EINVAL;
 783
 784	return 0;
 785}
 786
 787static int
 788qlcnic_validate_bootld(struct qlcnic_adapter *adapter)
 789{
 790	struct uni_table_desc *tab_desc;
 791	struct uni_data_desc *descr;
 792	u32 offs, tab_size, data_size, idx;
 793	const u8 *unirom = adapter->fw->data;
 794	__le32 temp;
 795
 796	temp = *((__le32 *)&unirom[adapter->file_prd_off] +
 797		 QLCNIC_UNI_BOOTLD_IDX_OFF);
 798	idx = le32_to_cpu(temp);
 799	tab_desc = qlcnic_get_table_desc(unirom, QLCNIC_UNI_DIR_SECT_BOOTLD);
 800
 801	if (!tab_desc)
 802		return -EINVAL;
 803
 804	tab_size = le32_to_cpu(tab_desc->findex) +
 805		   le32_to_cpu(tab_desc->entry_size) * (idx + 1);
 806
 807	if (adapter->fw->size < tab_size)
 808		return -EINVAL;
 809
 810	offs = le32_to_cpu(tab_desc->findex) +
 811	       le32_to_cpu(tab_desc->entry_size) * idx;
 812	descr = (struct uni_data_desc *)&unirom[offs];
 813
 814	data_size = le32_to_cpu(descr->findex) + le32_to_cpu(descr->size);
 815
 816	if (adapter->fw->size < data_size)
 817		return -EINVAL;
 818
 819	return 0;
 820}
 821
 822static int
 823qlcnic_validate_fw(struct qlcnic_adapter *adapter)
 824{
 825	struct uni_table_desc *tab_desc;
 826	struct uni_data_desc *descr;
 827	const u8 *unirom = adapter->fw->data;
 828	u32 offs, tab_size, data_size, idx;
 829	__le32 temp;
 830
 831	temp = *((__le32 *)&unirom[adapter->file_prd_off] +
 832		 QLCNIC_UNI_FIRMWARE_IDX_OFF);
 833	idx = le32_to_cpu(temp);
 834	tab_desc = qlcnic_get_table_desc(unirom, QLCNIC_UNI_DIR_SECT_FW);
 835
 836	if (!tab_desc)
 837		return -EINVAL;
 838
 839	tab_size = le32_to_cpu(tab_desc->findex) +
 840		   le32_to_cpu(tab_desc->entry_size) * (idx + 1);
 841
 842	if (adapter->fw->size < tab_size)
 843		return -EINVAL;
 844
 845	offs = le32_to_cpu(tab_desc->findex) +
 846	       le32_to_cpu(tab_desc->entry_size) * idx;
 847	descr = (struct uni_data_desc *)&unirom[offs];
 848	data_size = le32_to_cpu(descr->findex) + le32_to_cpu(descr->size);
 849
 850	if (adapter->fw->size < data_size)
 851		return -EINVAL;
 852
 853	return 0;
 854}
 855
 856static int
 857qlcnic_validate_product_offs(struct qlcnic_adapter *adapter)
 858{
 859	struct uni_table_desc *ptab_descr;
 860	const u8 *unirom = adapter->fw->data;
 861	int mn_present = qlcnic_has_mn(adapter);
 862	u32 entries, entry_size, tab_size, i;
 863	__le32 temp;
 864
 865	ptab_descr = qlcnic_get_table_desc(unirom,
 866				QLCNIC_UNI_DIR_SECT_PRODUCT_TBL);
 867	if (!ptab_descr)
 868		return -EINVAL;
 869
 870	entries = le32_to_cpu(ptab_descr->num_entries);
 871	entry_size = le32_to_cpu(ptab_descr->entry_size);
 872	tab_size = le32_to_cpu(ptab_descr->findex) + (entries * entry_size);
 873
 874	if (adapter->fw->size < tab_size)
 875		return -EINVAL;
 876
 877nomn:
 878	for (i = 0; i < entries; i++) {
 879
 880		u32 flags, file_chiprev, offs;
 881		u8 chiprev = adapter->ahw->revision_id;
 882		u32 flagbit;
 883
 884		offs = le32_to_cpu(ptab_descr->findex) +
 885		       i * le32_to_cpu(ptab_descr->entry_size);
 886		temp = *((__le32 *)&unirom[offs] + QLCNIC_UNI_FLAGS_OFF);
 887		flags = le32_to_cpu(temp);
 888		temp = *((__le32 *)&unirom[offs] + QLCNIC_UNI_CHIP_REV_OFF);
 889		file_chiprev = le32_to_cpu(temp);
 890
 891		flagbit = mn_present ? 1 : 2;
 892
 893		if ((chiprev == file_chiprev) &&
 894					((1ULL << flagbit) & flags)) {
 895			adapter->file_prd_off = offs;
 896			return 0;
 897		}
 898	}
 899	if (mn_present) {
 900		mn_present = 0;
 901		goto nomn;
 902	}
 903	return -EINVAL;
 904}
 905
 906static int
 907qlcnic_validate_unified_romimage(struct qlcnic_adapter *adapter)
 908{
 909	if (qlcnic_validate_header(adapter)) {
 910		dev_err(&adapter->pdev->dev,
 911				"unified image: header validation failed\n");
 912		return -EINVAL;
 913	}
 914
 915	if (qlcnic_validate_product_offs(adapter)) {
 916		dev_err(&adapter->pdev->dev,
 917				"unified image: product validation failed\n");
 918		return -EINVAL;
 919	}
 920
 921	if (qlcnic_validate_bootld(adapter)) {
 922		dev_err(&adapter->pdev->dev,
 923				"unified image: bootld validation failed\n");
 924		return -EINVAL;
 925	}
 926
 927	if (qlcnic_validate_fw(adapter)) {
 928		dev_err(&adapter->pdev->dev,
 929				"unified image: firmware validation failed\n");
 930		return -EINVAL;
 931	}
 932
 933	return 0;
 934}
 935
 936static
 937struct uni_data_desc *qlcnic_get_data_desc(struct qlcnic_adapter *adapter,
 938			u32 section, u32 idx_offset)
 939{
 940	const u8 *unirom = adapter->fw->data;
 941	struct uni_table_desc *tab_desc;
 942	u32 offs, idx;
 943	__le32 temp;
 944
 945	temp = *((__le32 *)&unirom[adapter->file_prd_off] + idx_offset);
 946	idx = le32_to_cpu(temp);
 947
 948	tab_desc = qlcnic_get_table_desc(unirom, section);
 949
 950	if (tab_desc == NULL)
 951		return NULL;
 952
 953	offs = le32_to_cpu(tab_desc->findex) +
 954	       le32_to_cpu(tab_desc->entry_size) * idx;
 955
 956	return (struct uni_data_desc *)&unirom[offs];
 957}
 958
 959static u8 *
 960qlcnic_get_bootld_offs(struct qlcnic_adapter *adapter)
 961{
 962	u32 offs = QLCNIC_BOOTLD_START;
 963	struct uni_data_desc *data_desc;
 964
 965	data_desc = qlcnic_get_data_desc(adapter, QLCNIC_UNI_DIR_SECT_BOOTLD,
 966					 QLCNIC_UNI_BOOTLD_IDX_OFF);
 967
 968	if (adapter->ahw->fw_type == QLCNIC_UNIFIED_ROMIMAGE)
 969		offs = le32_to_cpu(data_desc->findex);
 970
 971	return (u8 *)&adapter->fw->data[offs];
 972}
 973
 974static u8 *
 975qlcnic_get_fw_offs(struct qlcnic_adapter *adapter)
 976{
 977	u32 offs = QLCNIC_IMAGE_START;
 978	struct uni_data_desc *data_desc;
 979
 980	data_desc = qlcnic_get_data_desc(adapter, QLCNIC_UNI_DIR_SECT_FW,
 981					 QLCNIC_UNI_FIRMWARE_IDX_OFF);
 982	if (adapter->ahw->fw_type == QLCNIC_UNIFIED_ROMIMAGE)
 983		offs = le32_to_cpu(data_desc->findex);
 984
 985	return (u8 *)&adapter->fw->data[offs];
 986}
 987
 988static u32 qlcnic_get_fw_size(struct qlcnic_adapter *adapter)
 989{
 990	struct uni_data_desc *data_desc;
 991	const u8 *unirom = adapter->fw->data;
 992
 993	data_desc = qlcnic_get_data_desc(adapter, QLCNIC_UNI_DIR_SECT_FW,
 994					 QLCNIC_UNI_FIRMWARE_IDX_OFF);
 995
 996	if (adapter->ahw->fw_type == QLCNIC_UNIFIED_ROMIMAGE)
 997		return le32_to_cpu(data_desc->size);
 998	else
 999		return le32_to_cpu(*(__le32 *)&unirom[QLCNIC_FW_SIZE_OFFSET]);
1000}
1001
1002static u32 qlcnic_get_fw_version(struct qlcnic_adapter *adapter)
1003{
1004	struct uni_data_desc *fw_data_desc;
1005	const struct firmware *fw = adapter->fw;
1006	u32 major, minor, sub;
1007	__le32 version_offset;
1008	const u8 *ver_str;
1009	int i, ret;
1010
1011	if (adapter->ahw->fw_type != QLCNIC_UNIFIED_ROMIMAGE) {
1012		version_offset = *(__le32 *)&fw->data[QLCNIC_FW_VERSION_OFFSET];
1013		return le32_to_cpu(version_offset);
1014	}
1015
1016	fw_data_desc = qlcnic_get_data_desc(adapter, QLCNIC_UNI_DIR_SECT_FW,
1017			QLCNIC_UNI_FIRMWARE_IDX_OFF);
1018	ver_str = fw->data + le32_to_cpu(fw_data_desc->findex) +
1019		  le32_to_cpu(fw_data_desc->size) - 17;
1020
1021	for (i = 0; i < 12; i++) {
1022		if (!strncmp(&ver_str[i], "REV=", 4)) {
1023			ret = sscanf(&ver_str[i+4], "%u.%u.%u ",
1024					&major, &minor, &sub);
1025			if (ret != 3)
1026				return 0;
1027			else
1028				return major + (minor << 8) + (sub << 16);
1029		}
1030	}
1031
1032	return 0;
1033}
1034
1035static u32 qlcnic_get_bios_version(struct qlcnic_adapter *adapter)
1036{
1037	const struct firmware *fw = adapter->fw;
1038	u32 bios_ver, prd_off = adapter->file_prd_off;
1039	u8 *version_offset;
1040	__le32 temp;
1041
1042	if (adapter->ahw->fw_type != QLCNIC_UNIFIED_ROMIMAGE) {
1043		version_offset = (u8 *)&fw->data[QLCNIC_BIOS_VERSION_OFFSET];
1044		return le32_to_cpu(*(__le32 *)version_offset);
1045	}
1046
1047	temp = *((__le32 *)(&fw->data[prd_off]) + QLCNIC_UNI_BIOS_VERSION_OFF);
1048	bios_ver = le32_to_cpu(temp);
1049
1050	return (bios_ver << 16) + ((bios_ver >> 8) & 0xff00) + (bios_ver >> 24);
1051}
1052
1053static void qlcnic_rom_lock_recovery(struct qlcnic_adapter *adapter)
1054{
1055	if (qlcnic_pcie_sem_lock(adapter, 2, QLCNIC_ROM_LOCK_ID))
1056		dev_info(&adapter->pdev->dev, "Resetting rom_lock\n");
1057
1058	qlcnic_pcie_sem_unlock(adapter, 2);
1059}
1060
1061static int
1062qlcnic_check_fw_hearbeat(struct qlcnic_adapter *adapter)
1063{
1064	u32 heartbeat, ret = -EIO;
1065	int retries = QLCNIC_HEARTBEAT_CHECK_RETRY_COUNT;
1066
1067	adapter->heartbeat = QLC_SHARED_REG_RD32(adapter,
1068						 QLCNIC_PEG_ALIVE_COUNTER);
1069
1070	do {
1071		msleep(QLCNIC_HEARTBEAT_PERIOD_MSECS);
1072		heartbeat = QLC_SHARED_REG_RD32(adapter,
1073						QLCNIC_PEG_ALIVE_COUNTER);
1074		if (heartbeat != adapter->heartbeat) {
1075			ret = QLCNIC_RCODE_SUCCESS;
1076			break;
1077		}
1078	} while (--retries);
1079
1080	return ret;
1081}
1082
1083int
1084qlcnic_need_fw_reset(struct qlcnic_adapter *adapter)
1085{
1086	if ((adapter->flags & QLCNIC_FW_HANG) ||
1087			qlcnic_check_fw_hearbeat(adapter)) {
1088		qlcnic_rom_lock_recovery(adapter);
1089		return 1;
1090	}
1091
1092	if (adapter->need_fw_reset)
1093		return 1;
1094
1095	if (adapter->fw)
1096		return 1;
1097
1098	return 0;
1099}
1100
1101static const char *fw_name[] = {
1102	QLCNIC_UNIFIED_ROMIMAGE_NAME,
1103	QLCNIC_FLASH_ROMIMAGE_NAME,
1104};
1105
1106int
1107qlcnic_load_firmware(struct qlcnic_adapter *adapter)
1108{
1109	__le64 *ptr64;
1110	u32 i, flashaddr, size;
1111	const struct firmware *fw = adapter->fw;
1112	struct pci_dev *pdev = adapter->pdev;
1113
1114	dev_info(&pdev->dev, "loading firmware from %s\n",
1115		 fw_name[adapter->ahw->fw_type]);
1116
1117	if (fw) {
1118		u64 data;
1119
1120		size = (QLCNIC_IMAGE_START - QLCNIC_BOOTLD_START) / 8;
1121
1122		ptr64 = (__le64 *)qlcnic_get_bootld_offs(adapter);
1123		flashaddr = QLCNIC_BOOTLD_START;
1124
1125		for (i = 0; i < size; i++) {
1126			data = le64_to_cpu(ptr64[i]);
1127
1128			if (qlcnic_pci_mem_write_2M(adapter, flashaddr, data))
1129				return -EIO;
1130
1131			flashaddr += 8;
1132		}
1133
1134		size = qlcnic_get_fw_size(adapter) / 8;
1135
1136		ptr64 = (__le64 *)qlcnic_get_fw_offs(adapter);
1137		flashaddr = QLCNIC_IMAGE_START;
1138
1139		for (i = 0; i < size; i++) {
1140			data = le64_to_cpu(ptr64[i]);
1141
1142			if (qlcnic_pci_mem_write_2M(adapter,
1143						flashaddr, data))
1144				return -EIO;
1145
1146			flashaddr += 8;
1147		}
1148
1149		size = qlcnic_get_fw_size(adapter) % 8;
1150		if (size) {
1151			data = le64_to_cpu(ptr64[i]);
1152
1153			if (qlcnic_pci_mem_write_2M(adapter,
1154						flashaddr, data))
1155				return -EIO;
1156		}
1157
1158	} else {
1159		u64 data;
1160		u32 hi, lo;
1161		int ret;
1162		struct qlcnic_flt_entry bootld_entry;
1163
1164		ret = qlcnic_get_flt_entry(adapter, QLCNIC_BOOTLD_REGION,
1165					&bootld_entry);
1166		if (!ret) {
1167			size = bootld_entry.size / 8;
1168			flashaddr = bootld_entry.start_addr;
1169		} else {
1170			size = (QLCNIC_IMAGE_START - QLCNIC_BOOTLD_START) / 8;
1171			flashaddr = QLCNIC_BOOTLD_START;
1172			dev_info(&pdev->dev,
1173				"using legacy method to get flash fw region");
1174		}
1175
1176		for (i = 0; i < size; i++) {
1177			if (qlcnic_rom_fast_read(adapter,
1178					flashaddr, (int *)&lo) != 0)
1179				return -EIO;
1180			if (qlcnic_rom_fast_read(adapter,
1181					flashaddr + 4, (int *)&hi) != 0)
1182				return -EIO;
1183
1184			data = (((u64)hi << 32) | lo);
1185
1186			if (qlcnic_pci_mem_write_2M(adapter,
1187						flashaddr, data))
1188				return -EIO;
1189
1190			flashaddr += 8;
1191		}
1192	}
1193	usleep_range(1000, 1500);
1194
1195	QLCWR32(adapter, QLCNIC_CRB_PEG_NET_0 + 0x18, 0x1020);
1196	QLCWR32(adapter, QLCNIC_ROMUSB_GLB_SW_RESET, 0x80001e);
1197	return 0;
1198}
1199
1200static int
1201qlcnic_validate_firmware(struct qlcnic_adapter *adapter)
1202{
1203	u32 val;
1204	u32 ver, bios, min_size;
1205	struct pci_dev *pdev = adapter->pdev;
1206	const struct firmware *fw = adapter->fw;
1207	u8 fw_type = adapter->ahw->fw_type;
1208
1209	if (fw_type == QLCNIC_UNIFIED_ROMIMAGE) {
1210		if (qlcnic_validate_unified_romimage(adapter))
1211			return -EINVAL;
1212
1213		min_size = QLCNIC_UNI_FW_MIN_SIZE;
1214	} else {
1215		val = le32_to_cpu(*(__le32 *)&fw->data[QLCNIC_FW_MAGIC_OFFSET]);
1216		if (val != QLCNIC_BDINFO_MAGIC)
1217			return -EINVAL;
1218
1219		min_size = QLCNIC_FW_MIN_SIZE;
1220	}
1221
1222	if (fw->size < min_size)
1223		return -EINVAL;
1224
1225	val = qlcnic_get_fw_version(adapter);
1226	ver = QLCNIC_DECODE_VERSION(val);
1227
1228	if (ver < QLCNIC_MIN_FW_VERSION) {
1229		dev_err(&pdev->dev,
1230				"%s: firmware version %d.%d.%d unsupported\n",
1231		fw_name[fw_type], _major(ver), _minor(ver), _build(ver));
1232		return -EINVAL;
1233	}
1234
1235	val = qlcnic_get_bios_version(adapter);
1236	qlcnic_rom_fast_read(adapter, QLCNIC_BIOS_VERSION_OFFSET, (int *)&bios);
1237	if (val != bios) {
1238		dev_err(&pdev->dev, "%s: firmware bios is incompatible\n",
1239				fw_name[fw_type]);
1240		return -EINVAL;
1241	}
1242
1243	QLC_SHARED_REG_WR32(adapter, QLCNIC_FW_IMG_VALID, QLCNIC_BDINFO_MAGIC);
1244	return 0;
1245}
1246
1247static void
1248qlcnic_get_next_fwtype(struct qlcnic_adapter *adapter)
1249{
1250	u8 fw_type;
1251
1252	switch (adapter->ahw->fw_type) {
1253	case QLCNIC_UNKNOWN_ROMIMAGE:
1254		fw_type = QLCNIC_UNIFIED_ROMIMAGE;
1255		break;
1256
1257	case QLCNIC_UNIFIED_ROMIMAGE:
1258	default:
1259		fw_type = QLCNIC_FLASH_ROMIMAGE;
1260		break;
1261	}
1262
1263	adapter->ahw->fw_type = fw_type;
1264}
1265
1266
1267
1268void qlcnic_request_firmware(struct qlcnic_adapter *adapter)
1269{
1270	struct pci_dev *pdev = adapter->pdev;
1271	int rc;
1272
1273	adapter->ahw->fw_type = QLCNIC_UNKNOWN_ROMIMAGE;
1274
1275next:
1276	qlcnic_get_next_fwtype(adapter);
1277
1278	if (adapter->ahw->fw_type == QLCNIC_FLASH_ROMIMAGE) {
1279		adapter->fw = NULL;
1280	} else {
1281		rc = request_firmware(&adapter->fw,
1282				      fw_name[adapter->ahw->fw_type],
1283				      &pdev->dev);
1284		if (rc != 0)
1285			goto next;
1286
1287		rc = qlcnic_validate_firmware(adapter);
1288		if (rc != 0) {
1289			release_firmware(adapter->fw);
1290			usleep_range(1000, 1500);
1291			goto next;
1292		}
1293	}
1294}
1295
1296
1297void
1298qlcnic_release_firmware(struct qlcnic_adapter *adapter)
1299{
1300	release_firmware(adapter->fw);
1301	adapter->fw = NULL;
1302}