aic94xx_init.c 27.9 KB
Newer Older
J
James Bottomley 已提交
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
/*
 * Aic94xx SAS/SATA driver initialization.
 *
 * Copyright (C) 2005 Adaptec, Inc.  All rights reserved.
 * Copyright (C) 2005 Luben Tuikov <luben_tuikov@adaptec.com>
 *
 * This file is licensed under GPLv2.
 *
 * This file is part of the aic94xx driver.
 *
 * The aic94xx driver is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; version 2 of the
 * License.
 *
 * The aic94xx driver is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with the aic94xx driver; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 *
 */

#include <linux/module.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/pci.h>
#include <linux/delay.h>
32
#include <linux/firmware.h>
33
#include <linux/slab.h>
J
James Bottomley 已提交
34 35 36 37 38 39 40

#include <scsi/scsi_host.h>

#include "aic94xx.h"
#include "aic94xx_reg.h"
#include "aic94xx_hwi.h"
#include "aic94xx_seq.h"
41
#include "aic94xx_sds.h"
J
James Bottomley 已提交
42 43

/* The format is "version.release.patchlevel" */
44
#define ASD_DRIVER_VERSION "1.0.3"
J
James Bottomley 已提交
45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60

static int use_msi = 0;
module_param_named(use_msi, use_msi, int, S_IRUGO);
MODULE_PARM_DESC(use_msi, "\n"
	"\tEnable(1) or disable(0) using PCI MSI.\n"
	"\tDefault: 0");

static int lldd_max_execute_num = 0;
module_param_named(collector, lldd_max_execute_num, int, S_IRUGO);
MODULE_PARM_DESC(collector, "\n"
	"\tIf greater than one, tells the SAS Layer to run in Task Collector\n"
	"\tMode.  If 1 or 0, tells the SAS Layer to run in Direct Mode.\n"
	"\tThe aic94xx SAS LLDD supports both modes.\n"
	"\tDefault: 0 (Direct Mode).\n");

static struct scsi_transport_template *aic94xx_transport_template;
61 62
static int asd_scan_finished(struct Scsi_Host *, unsigned long);
static void asd_scan_start(struct Scsi_Host *);
J
James Bottomley 已提交
63 64 65 66 67 68 69 70 71

static struct scsi_host_template aic94xx_sht = {
	.module			= THIS_MODULE,
	/* .name is initialized */
	.name			= "aic94xx",
	.queuecommand		= sas_queuecommand,
	.target_alloc		= sas_target_alloc,
	.slave_configure	= sas_slave_configure,
	.slave_destroy		= sas_slave_destroy,
72 73
	.scan_finished		= asd_scan_finished,
	.scan_start		= asd_scan_start,
J
James Bottomley 已提交
74 75 76 77 78 79 80 81 82
	.change_queue_depth	= sas_change_queue_depth,
	.change_queue_type	= sas_change_queue_type,
	.bios_param		= sas_bios_param,
	.can_queue		= 1,
	.cmd_per_lun		= 1,
	.this_id		= -1,
	.sg_tablesize		= SG_ALL,
	.max_sectors		= SCSI_DEFAULT_MAX_SECTORS,
	.use_clustering		= ENABLE_CLUSTERING,
83
	.eh_device_reset_handler	= sas_eh_device_reset_handler,
84
	.eh_bus_reset_handler	= sas_eh_bus_reset_handler,
85 86 87
	.slave_alloc		= sas_slave_alloc,
	.target_destroy		= sas_target_destroy,
	.ioctl			= sas_ioctl,
J
James Bottomley 已提交
88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137
};

static int __devinit asd_map_memio(struct asd_ha_struct *asd_ha)
{
	int err, i;
	struct asd_ha_addrspace *io_handle;

	asd_ha->iospace = 0;
	for (i = 0; i < 3; i += 2) {
		io_handle = &asd_ha->io_handle[i==0?0:1];
		io_handle->start = pci_resource_start(asd_ha->pcidev, i);
		io_handle->len   = pci_resource_len(asd_ha->pcidev, i);
		io_handle->flags = pci_resource_flags(asd_ha->pcidev, i);
		err = -ENODEV;
		if (!io_handle->start || !io_handle->len) {
			asd_printk("MBAR%d start or length for %s is 0.\n",
				   i==0?0:1, pci_name(asd_ha->pcidev));
			goto Err;
		}
		err = pci_request_region(asd_ha->pcidev, i, ASD_DRIVER_NAME);
		if (err) {
			asd_printk("couldn't reserve memory region for %s\n",
				   pci_name(asd_ha->pcidev));
			goto Err;
		}
		if (io_handle->flags & IORESOURCE_CACHEABLE)
			io_handle->addr = ioremap(io_handle->start,
						  io_handle->len);
		else
			io_handle->addr = ioremap_nocache(io_handle->start,
							  io_handle->len);
		if (!io_handle->addr) {
			asd_printk("couldn't map MBAR%d of %s\n", i==0?0:1,
				   pci_name(asd_ha->pcidev));
			goto Err_unreq;
		}
	}

	return 0;
Err_unreq:
	pci_release_region(asd_ha->pcidev, i);
Err:
	if (i > 0) {
		io_handle = &asd_ha->io_handle[0];
		iounmap(io_handle->addr);
		pci_release_region(asd_ha->pcidev, 0);
	}
	return err;
}

138
static void asd_unmap_memio(struct asd_ha_struct *asd_ha)
J
James Bottomley 已提交
139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174
{
	struct asd_ha_addrspace *io_handle;

	io_handle = &asd_ha->io_handle[1];
	iounmap(io_handle->addr);
	pci_release_region(asd_ha->pcidev, 2);

	io_handle = &asd_ha->io_handle[0];
	iounmap(io_handle->addr);
	pci_release_region(asd_ha->pcidev, 0);
}

static int __devinit asd_map_ioport(struct asd_ha_struct *asd_ha)
{
	int i = PCI_IOBAR_OFFSET, err;
	struct asd_ha_addrspace *io_handle = &asd_ha->io_handle[0];

	asd_ha->iospace = 1;
	io_handle->start = pci_resource_start(asd_ha->pcidev, i);
	io_handle->len   = pci_resource_len(asd_ha->pcidev, i);
	io_handle->flags = pci_resource_flags(asd_ha->pcidev, i);
	io_handle->addr  = (void __iomem *) io_handle->start;
	if (!io_handle->start || !io_handle->len) {
		asd_printk("couldn't get IO ports for %s\n",
			   pci_name(asd_ha->pcidev));
		return -ENODEV;
	}
	err = pci_request_region(asd_ha->pcidev, i, ASD_DRIVER_NAME);
	if (err) {
		asd_printk("couldn't reserve io space for %s\n",
			   pci_name(asd_ha->pcidev));
	}

	return err;
}

175
static void asd_unmap_ioport(struct asd_ha_struct *asd_ha)
J
James Bottomley 已提交
176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211
{
	pci_release_region(asd_ha->pcidev, PCI_IOBAR_OFFSET);
}

static int __devinit asd_map_ha(struct asd_ha_struct *asd_ha)
{
	int err;
	u16 cmd_reg;

	err = pci_read_config_word(asd_ha->pcidev, PCI_COMMAND, &cmd_reg);
	if (err) {
		asd_printk("couldn't read command register of %s\n",
			   pci_name(asd_ha->pcidev));
		goto Err;
	}

	err = -ENODEV;
	if (cmd_reg & PCI_COMMAND_MEMORY) {
		if ((err = asd_map_memio(asd_ha)))
			goto Err;
	} else if (cmd_reg & PCI_COMMAND_IO) {
		if ((err = asd_map_ioport(asd_ha)))
			goto Err;
		asd_printk("%s ioport mapped -- upgrade your hardware\n",
			   pci_name(asd_ha->pcidev));
	} else {
		asd_printk("no proper device access to %s\n",
			   pci_name(asd_ha->pcidev));
		goto Err;
	}

	return 0;
Err:
	return err;
}

212
static void asd_unmap_ha(struct asd_ha_struct *asd_ha)
J
James Bottomley 已提交
213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229
{
	if (asd_ha->iospace)
		asd_unmap_ioport(asd_ha);
	else
		asd_unmap_memio(asd_ha);
}

static const char *asd_dev_rev[30] = {
	[0] = "A0",
	[1] = "A1",
	[8] = "B0",
};

static int __devinit asd_common_setup(struct asd_ha_struct *asd_ha)
{
	int err, i;

230 231
	asd_ha->revision_id = asd_ha->pcidev->revision;

J
James Bottomley 已提交
232 233 234 235 236 237 238 239 240 241
	err = -ENODEV;
	if (asd_ha->revision_id < AIC9410_DEV_REV_B0) {
		asd_printk("%s is revision %s (%X), which is not supported\n",
			   pci_name(asd_ha->pcidev),
			   asd_dev_rev[asd_ha->revision_id],
			   asd_ha->revision_id);
		goto Err;
	}
	/* Provide some sane default values. */
	asd_ha->hw_prof.max_scbs = 512;
242
	asd_ha->hw_prof.max_ddbs = ASD_MAX_DDBS;
J
James Bottomley 已提交
243 244 245 246
	asd_ha->hw_prof.num_phys = ASD_MAX_PHYS;
	/* All phys are enabled, by default. */
	asd_ha->hw_prof.enabled_phys = 0xFF;
	for (i = 0; i < ASD_MAX_PHYS; i++) {
247 248 249 250 251 252 253 254
		asd_ha->hw_prof.phy_desc[i].max_sas_lrate =
			SAS_LINK_RATE_3_0_GBPS;
		asd_ha->hw_prof.phy_desc[i].min_sas_lrate =
			SAS_LINK_RATE_1_5_GBPS;
		asd_ha->hw_prof.phy_desc[i].max_sata_lrate =
			SAS_LINK_RATE_1_5_GBPS;
		asd_ha->hw_prof.phy_desc[i].min_sata_lrate =
			SAS_LINK_RATE_1_5_GBPS;
J
James Bottomley 已提交
255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316
	}

	return 0;
Err:
	return err;
}

static int __devinit asd_aic9410_setup(struct asd_ha_struct *asd_ha)
{
	int err = asd_common_setup(asd_ha);

	if (err)
		return err;

	asd_ha->hw_prof.addr_range = 8;
	asd_ha->hw_prof.port_name_base = 0;
	asd_ha->hw_prof.dev_name_base = 8;
	asd_ha->hw_prof.sata_name_base = 16;

	return 0;
}

static int __devinit asd_aic9405_setup(struct asd_ha_struct *asd_ha)
{
	int err = asd_common_setup(asd_ha);

	if (err)
		return err;

	asd_ha->hw_prof.addr_range = 4;
	asd_ha->hw_prof.port_name_base = 0;
	asd_ha->hw_prof.dev_name_base = 4;
	asd_ha->hw_prof.sata_name_base = 8;

	return 0;
}

static ssize_t asd_show_dev_rev(struct device *dev,
				struct device_attribute *attr, char *buf)
{
	struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev);
	return snprintf(buf, PAGE_SIZE, "%s\n",
			asd_dev_rev[asd_ha->revision_id]);
}
static DEVICE_ATTR(revision, S_IRUGO, asd_show_dev_rev, NULL);

static ssize_t asd_show_dev_bios_build(struct device *dev,
				       struct device_attribute *attr,char *buf)
{
	struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev);
	return snprintf(buf, PAGE_SIZE, "%d\n", asd_ha->hw_prof.bios.bld);
}
static DEVICE_ATTR(bios_build, S_IRUGO, asd_show_dev_bios_build, NULL);

static ssize_t asd_show_dev_pcba_sn(struct device *dev,
				    struct device_attribute *attr, char *buf)
{
	struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev);
	return snprintf(buf, PAGE_SIZE, "%s\n", asd_ha->hw_prof.pcba_sn);
}
static DEVICE_ATTR(pcba_sn, S_IRUGO, asd_show_dev_pcba_sn, NULL);

317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488
#define FLASH_CMD_NONE      0x00
#define FLASH_CMD_UPDATE    0x01
#define FLASH_CMD_VERIFY    0x02

struct flash_command {
     u8      command[8];
     int     code;
};

static struct flash_command flash_command_table[] =
{
     {"verify",      FLASH_CMD_VERIFY},
     {"update",      FLASH_CMD_UPDATE},
     {"",            FLASH_CMD_NONE}      /* Last entry should be NULL. */
};

struct error_bios {
     char    *reason;
     int     err_code;
};

static struct error_bios flash_error_table[] =
{
     {"Failed to open bios image file",      FAIL_OPEN_BIOS_FILE},
     {"PCI ID mismatch",                     FAIL_CHECK_PCI_ID},
     {"Checksum mismatch",                   FAIL_CHECK_SUM},
     {"Unknown Error",                       FAIL_UNKNOWN},
     {"Failed to verify.",                   FAIL_VERIFY},
     {"Failed to reset flash chip.",         FAIL_RESET_FLASH},
     {"Failed to find flash chip type.",     FAIL_FIND_FLASH_ID},
     {"Failed to erash flash chip.",         FAIL_ERASE_FLASH},
     {"Failed to program flash chip.",       FAIL_WRITE_FLASH},
     {"Flash in progress",                   FLASH_IN_PROGRESS},
     {"Image file size Error",               FAIL_FILE_SIZE},
     {"Input parameter error",               FAIL_PARAMETERS},
     {"Out of memory",                       FAIL_OUT_MEMORY},
     {"OK", 0}	/* Last entry err_code = 0. */
};

static ssize_t asd_store_update_bios(struct device *dev,
	struct device_attribute *attr,
	const char *buf, size_t count)
{
	struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev);
	char *cmd_ptr, *filename_ptr;
	struct bios_file_header header, *hdr_ptr;
	int res, i;
	u32 csum = 0;
	int flash_command = FLASH_CMD_NONE;
	int err = 0;

	cmd_ptr = kzalloc(count*2, GFP_KERNEL);

	if (!cmd_ptr) {
		err = FAIL_OUT_MEMORY;
		goto out;
	}

	filename_ptr = cmd_ptr + count;
	res = sscanf(buf, "%s %s", cmd_ptr, filename_ptr);
	if (res != 2) {
		err = FAIL_PARAMETERS;
		goto out1;
	}

	for (i = 0; flash_command_table[i].code != FLASH_CMD_NONE; i++) {
		if (!memcmp(flash_command_table[i].command,
				 cmd_ptr, strlen(cmd_ptr))) {
			flash_command = flash_command_table[i].code;
			break;
		}
	}
	if (flash_command == FLASH_CMD_NONE) {
		err = FAIL_PARAMETERS;
		goto out1;
	}

	if (asd_ha->bios_status == FLASH_IN_PROGRESS) {
		err = FLASH_IN_PROGRESS;
		goto out1;
	}
	err = request_firmware(&asd_ha->bios_image,
				   filename_ptr,
				   &asd_ha->pcidev->dev);
	if (err) {
		asd_printk("Failed to load bios image file %s, error %d\n",
			   filename_ptr, err);
		err = FAIL_OPEN_BIOS_FILE;
		goto out1;
	}

	hdr_ptr = (struct bios_file_header *)asd_ha->bios_image->data;

	if ((hdr_ptr->contrl_id.vendor != asd_ha->pcidev->vendor ||
		hdr_ptr->contrl_id.device != asd_ha->pcidev->device) &&
		(hdr_ptr->contrl_id.sub_vendor != asd_ha->pcidev->vendor ||
		hdr_ptr->contrl_id.sub_device != asd_ha->pcidev->device)) {

		ASD_DPRINTK("The PCI vendor or device id does not match\n");
		ASD_DPRINTK("vendor=%x dev=%x sub_vendor=%x sub_dev=%x"
		" pci vendor=%x pci dev=%x\n",
		hdr_ptr->contrl_id.vendor,
		hdr_ptr->contrl_id.device,
		hdr_ptr->contrl_id.sub_vendor,
		hdr_ptr->contrl_id.sub_device,
		asd_ha->pcidev->vendor,
		asd_ha->pcidev->device);
		err = FAIL_CHECK_PCI_ID;
		goto out2;
	}

	if (hdr_ptr->filelen != asd_ha->bios_image->size) {
		err = FAIL_FILE_SIZE;
		goto out2;
	}

	/* calculate checksum */
	for (i = 0; i < hdr_ptr->filelen; i++)
		csum += asd_ha->bios_image->data[i];

	if ((csum & 0x0000ffff) != hdr_ptr->checksum) {
		ASD_DPRINTK("BIOS file checksum mismatch\n");
		err = FAIL_CHECK_SUM;
		goto out2;
	}
	if (flash_command == FLASH_CMD_UPDATE) {
		asd_ha->bios_status = FLASH_IN_PROGRESS;
		err = asd_write_flash_seg(asd_ha,
			&asd_ha->bios_image->data[sizeof(*hdr_ptr)],
			0, hdr_ptr->filelen-sizeof(*hdr_ptr));
		if (!err)
			err = asd_verify_flash_seg(asd_ha,
				&asd_ha->bios_image->data[sizeof(*hdr_ptr)],
				0, hdr_ptr->filelen-sizeof(*hdr_ptr));
	} else {
		asd_ha->bios_status = FLASH_IN_PROGRESS;
		err = asd_verify_flash_seg(asd_ha,
			&asd_ha->bios_image->data[sizeof(header)],
			0, hdr_ptr->filelen-sizeof(header));
	}

out2:
	release_firmware(asd_ha->bios_image);
out1:
	kfree(cmd_ptr);
out:
	asd_ha->bios_status = err;

	if (!err)
		return count;
	else
		return -err;
}

static ssize_t asd_show_update_bios(struct device *dev,
				    struct device_attribute *attr, char *buf)
{
	int i;
	struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev);

	for (i = 0; flash_error_table[i].err_code != 0; i++) {
		if (flash_error_table[i].err_code == asd_ha->bios_status)
			break;
	}
	if (asd_ha->bios_status != FLASH_IN_PROGRESS)
		asd_ha->bios_status = FLASH_OK;

	return snprintf(buf, PAGE_SIZE, "status=%x %s\n",
			flash_error_table[i].err_code,
			flash_error_table[i].reason);
}

489
static DEVICE_ATTR(update_bios, S_IRUGO|S_IWUSR,
490 491
	asd_show_update_bios, asd_store_update_bios);

492
static int asd_create_dev_attrs(struct asd_ha_struct *asd_ha)
J
James Bottomley 已提交
493
{
494 495 496 497 498 499 500 501 502 503 504 505 506
	int err;

	err = device_create_file(&asd_ha->pcidev->dev, &dev_attr_revision);
	if (err)
		return err;

	err = device_create_file(&asd_ha->pcidev->dev, &dev_attr_bios_build);
	if (err)
		goto err_rev;

	err = device_create_file(&asd_ha->pcidev->dev, &dev_attr_pcba_sn);
	if (err)
		goto err_biosb;
507 508 509
	err = device_create_file(&asd_ha->pcidev->dev, &dev_attr_update_bios);
	if (err)
		goto err_update_bios;
510 511 512

	return 0;

513 514
err_update_bios:
	device_remove_file(&asd_ha->pcidev->dev, &dev_attr_pcba_sn);
515 516 517 518 519
err_biosb:
	device_remove_file(&asd_ha->pcidev->dev, &dev_attr_bios_build);
err_rev:
	device_remove_file(&asd_ha->pcidev->dev, &dev_attr_revision);
	return err;
J
James Bottomley 已提交
520 521 522 523 524 525 526
}

static void asd_remove_dev_attrs(struct asd_ha_struct *asd_ha)
{
	device_remove_file(&asd_ha->pcidev->dev, &dev_attr_revision);
	device_remove_file(&asd_ha->pcidev->dev, &dev_attr_bios_build);
	device_remove_file(&asd_ha->pcidev->dev, &dev_attr_pcba_sn);
527
	device_remove_file(&asd_ha->pcidev->dev, &dev_attr_update_bios);
J
James Bottomley 已提交
528 529 530 531 532
}

/* The first entry, 0, is used for dynamic ids, the rest for devices
 * we know about.
 */
533
static const struct asd_pcidev_struct {
J
James Bottomley 已提交
534 535
	const char * name;
	int (*setup)(struct asd_ha_struct *asd_ha);
536
} asd_pcidev_data[] __devinitconst = {
J
James Bottomley 已提交
537 538 539 540 541 542 543 544 545 546 547 548
	/* Id 0 is used for dynamic ids. */
	{ .name  = "Adaptec AIC-94xx SAS/SATA Host Adapter",
	  .setup = asd_aic9410_setup
	},
	{ .name  = "Adaptec AIC-9410W SAS/SATA Host Adapter",
	  .setup = asd_aic9410_setup
	},
	{ .name  = "Adaptec AIC-9405W SAS/SATA Host Adapter",
	  .setup = asd_aic9405_setup
	},
};

A
Adrian Bunk 已提交
549
static int asd_create_ha_caches(struct asd_ha_struct *asd_ha)
J
James Bottomley 已提交
550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566
{
	asd_ha->scb_pool = dma_pool_create(ASD_DRIVER_NAME "_scb_pool",
					   &asd_ha->pcidev->dev,
					   sizeof(struct scb),
					   8, 0);
	if (!asd_ha->scb_pool) {
		asd_printk("couldn't create scb pool\n");
		return -ENOMEM;
	}

	return 0;
}

/**
 * asd_free_edbs -- free empty data buffers
 * asd_ha: pointer to host adapter structure
 */
A
Adrian Bunk 已提交
567
static void asd_free_edbs(struct asd_ha_struct *asd_ha)
J
James Bottomley 已提交
568 569 570 571 572 573 574 575 576 577
{
	struct asd_seq_data *seq = &asd_ha->seq;
	int i;

	for (i = 0; i < seq->num_edbs; i++)
		asd_free_coherent(asd_ha, seq->edb_arr[i]);
	kfree(seq->edb_arr);
	seq->edb_arr = NULL;
}

A
Adrian Bunk 已提交
578
static void asd_free_escbs(struct asd_ha_struct *asd_ha)
J
James Bottomley 已提交
579 580 581 582 583 584 585 586 587 588 589 590 591 592
{
	struct asd_seq_data *seq = &asd_ha->seq;
	int i;

	for (i = 0; i < seq->num_escbs; i++) {
		if (!list_empty(&seq->escb_arr[i]->list))
			list_del_init(&seq->escb_arr[i]->list);

		asd_ascb_free(seq->escb_arr[i]);
	}
	kfree(seq->escb_arr);
	seq->escb_arr = NULL;
}

A
Adrian Bunk 已提交
593
static void asd_destroy_ha_caches(struct asd_ha_struct *asd_ha)
J
James Bottomley 已提交
594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638
{
	int i;

	if (asd_ha->hw_prof.ddb_ext)
		asd_free_coherent(asd_ha, asd_ha->hw_prof.ddb_ext);
	if (asd_ha->hw_prof.scb_ext)
		asd_free_coherent(asd_ha, asd_ha->hw_prof.scb_ext);

	if (asd_ha->hw_prof.ddb_bitmap)
		kfree(asd_ha->hw_prof.ddb_bitmap);
	asd_ha->hw_prof.ddb_bitmap = NULL;

	for (i = 0; i < ASD_MAX_PHYS; i++) {
		struct asd_phy *phy = &asd_ha->phys[i];

		asd_free_coherent(asd_ha, phy->id_frm_tok);
	}
	if (asd_ha->seq.escb_arr)
		asd_free_escbs(asd_ha);
	if (asd_ha->seq.edb_arr)
		asd_free_edbs(asd_ha);
	if (asd_ha->hw_prof.ue.area) {
		kfree(asd_ha->hw_prof.ue.area);
		asd_ha->hw_prof.ue.area = NULL;
	}
	if (asd_ha->seq.tc_index_array) {
		kfree(asd_ha->seq.tc_index_array);
		kfree(asd_ha->seq.tc_index_bitmap);
		asd_ha->seq.tc_index_array = NULL;
		asd_ha->seq.tc_index_bitmap = NULL;
	}
	if (asd_ha->seq.actual_dl) {
			asd_free_coherent(asd_ha, asd_ha->seq.actual_dl);
			asd_ha->seq.actual_dl = NULL;
			asd_ha->seq.dl = NULL;
	}
	if (asd_ha->seq.next_scb.vaddr) {
		dma_pool_free(asd_ha->scb_pool, asd_ha->seq.next_scb.vaddr,
			      asd_ha->seq.next_scb.dma_handle);
		asd_ha->seq.next_scb.vaddr = NULL;
	}
	dma_pool_destroy(asd_ha->scb_pool);
	asd_ha->scb_pool = NULL;
}

639 640
struct kmem_cache *asd_dma_token_cache;
struct kmem_cache *asd_ascb_cache;
J
James Bottomley 已提交
641 642 643 644 645 646 647 648 649

static int asd_create_global_caches(void)
{
	if (!asd_dma_token_cache) {
		asd_dma_token_cache
			= kmem_cache_create(ASD_DRIVER_NAME "_dma_token",
					    sizeof(struct asd_dma_tok),
					    0,
					    SLAB_HWCACHE_ALIGN,
650
					    NULL);
J
James Bottomley 已提交
651 652 653 654 655 656 657 658 659 660 661
		if (!asd_dma_token_cache) {
			asd_printk("couldn't create dma token cache\n");
			return -ENOMEM;
		}
	}

	if (!asd_ascb_cache) {
		asd_ascb_cache = kmem_cache_create(ASD_DRIVER_NAME "_ascb",
						   sizeof(struct asd_ascb),
						   0,
						   SLAB_HWCACHE_ALIGN,
662
						   NULL);
J
James Bottomley 已提交
663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690
		if (!asd_ascb_cache) {
			asd_printk("couldn't create ascb cache\n");
			goto Err;
		}
	}

	return 0;
Err:
	kmem_cache_destroy(asd_dma_token_cache);
	asd_dma_token_cache = NULL;
	return -ENOMEM;
}

static void asd_destroy_global_caches(void)
{
	if (asd_dma_token_cache)
		kmem_cache_destroy(asd_dma_token_cache);
	asd_dma_token_cache = NULL;

	if (asd_ascb_cache)
		kmem_cache_destroy(asd_ascb_cache);
	asd_ascb_cache = NULL;
}

static int asd_register_sas_ha(struct asd_ha_struct *asd_ha)
{
	int i;
	struct asd_sas_phy   **sas_phys =
691
		kcalloc(ASD_MAX_PHYS, sizeof(*sas_phys), GFP_KERNEL);
J
James Bottomley 已提交
692
	struct asd_sas_port  **sas_ports =
693
		kcalloc(ASD_MAX_PHYS, sizeof(*sas_ports), GFP_KERNEL);
J
James Bottomley 已提交
694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714

	if (!sas_phys || !sas_ports) {
		kfree(sas_phys);
		kfree(sas_ports);
		return -ENOMEM;
	}

	asd_ha->sas_ha.sas_ha_name = (char *) asd_ha->name;
	asd_ha->sas_ha.lldd_module = THIS_MODULE;
	asd_ha->sas_ha.sas_addr = &asd_ha->hw_prof.sas_addr[0];

	for (i = 0; i < ASD_MAX_PHYS; i++) {
		sas_phys[i] = &asd_ha->phys[i].sas_phy;
		sas_ports[i] = &asd_ha->ports[i];
	}

	asd_ha->sas_ha.sas_phy = sas_phys;
	asd_ha->sas_ha.sas_port= sas_ports;
	asd_ha->sas_ha.num_phys= ASD_MAX_PHYS;

	asd_ha->sas_ha.lldd_queue_size = asd_ha->seq.can_queue;
715
	asd_ha->sas_ha.lldd_max_execute_num = lldd_max_execute_num;
J
James Bottomley 已提交
716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738

	return sas_register_ha(&asd_ha->sas_ha);
}

static int asd_unregister_sas_ha(struct asd_ha_struct *asd_ha)
{
	int err;

	err = sas_unregister_ha(&asd_ha->sas_ha);

	sas_remove_host(asd_ha->sas_ha.core.shost);
	scsi_remove_host(asd_ha->sas_ha.core.shost);
	scsi_host_put(asd_ha->sas_ha.core.shost);

	kfree(asd_ha->sas_ha.sas_phy);
	kfree(asd_ha->sas_ha.sas_port);

	return err;
}

static int __devinit asd_pci_probe(struct pci_dev *dev,
				   const struct pci_device_id *id)
{
739
	const struct asd_pcidev_struct *asd_dev;
J
James Bottomley 已提交
740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767
	unsigned asd_id = (unsigned) id->driver_data;
	struct asd_ha_struct *asd_ha;
	struct Scsi_Host *shost;
	int err;

	if (asd_id >= ARRAY_SIZE(asd_pcidev_data)) {
		asd_printk("wrong driver_data in PCI table\n");
		return -ENODEV;
	}

	if ((err = pci_enable_device(dev))) {
		asd_printk("couldn't enable device %s\n", pci_name(dev));
		return err;
	}

	pci_set_master(dev);

	err = -ENOMEM;

	shost = scsi_host_alloc(&aic94xx_sht, sizeof(void *));
	if (!shost)
		goto Err;

	asd_dev = &asd_pcidev_data[asd_id];

	asd_ha = kzalloc(sizeof(*asd_ha), GFP_KERNEL);
	if (!asd_ha) {
		asd_printk("out of memory\n");
768
		goto Err_put;
J
James Bottomley 已提交
769 770
	}
	asd_ha->pcidev = dev;
771
	asd_ha->sas_ha.dev = &asd_ha->pcidev->dev;
J
James Bottomley 已提交
772 773
	asd_ha->sas_ha.lldd_ha = asd_ha;

774
	asd_ha->bios_status = FLASH_OK;
J
James Bottomley 已提交
775 776 777 778 779 780 781 782 783 784 785
	asd_ha->name = asd_dev->name;
	asd_printk("found %s, device %s\n", asd_ha->name, pci_name(dev));

	SHOST_TO_SAS_HA(shost) = &asd_ha->sas_ha;
	asd_ha->sas_ha.core.shost = shost;
	shost->transportt = aic94xx_transport_template;
	shost->max_id = ~0;
	shost->max_lun = ~0;
	shost->max_cmd_len = 16;

	err = scsi_add_host(shost, &dev->dev);
786
	if (err)
J
James Bottomley 已提交
787 788 789 790
		goto Err_free;

	err = asd_dev->setup(asd_ha);
	if (err)
791
		goto Err_remove;
J
James Bottomley 已提交
792 793

	err = -ENODEV;
794 795
	if (!pci_set_dma_mask(dev, DMA_BIT_MASK(64))
	    && !pci_set_consistent_dma_mask(dev, DMA_BIT_MASK(64)))
J
James Bottomley 已提交
796
		;
797 798
	else if (!pci_set_dma_mask(dev, DMA_BIT_MASK(32))
		 && !pci_set_consistent_dma_mask(dev, DMA_BIT_MASK(32)))
J
James Bottomley 已提交
799 800 801
		;
	else {
		asd_printk("no suitable DMA mask for %s\n", pci_name(dev));
802
		goto Err_remove;
J
James Bottomley 已提交
803 804 805 806 807 808
	}

	pci_set_drvdata(dev, asd_ha);

	err = asd_map_ha(asd_ha);
	if (err)
809
		goto Err_remove;
J
James Bottomley 已提交
810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827

	err = asd_create_ha_caches(asd_ha);
        if (err)
		goto Err_unmap;

	err = asd_init_hw(asd_ha);
	if (err)
		goto Err_free_cache;

	asd_printk("device %s: SAS addr %llx, PCBA SN %s, %d phys, %d enabled "
		   "phys, flash %s, BIOS %s%d\n",
		   pci_name(dev), SAS_ADDR(asd_ha->hw_prof.sas_addr),
		   asd_ha->hw_prof.pcba_sn, asd_ha->hw_prof.max_phys,
		   asd_ha->hw_prof.num_phys,
		   asd_ha->hw_prof.flash.present ? "present" : "not present",
		   asd_ha->hw_prof.bios.present ? "build " : "not present",
		   asd_ha->hw_prof.bios.bld);

828 829
	shost->can_queue = asd_ha->seq.can_queue;

J
James Bottomley 已提交
830 831 832
	if (use_msi)
		pci_enable_msi(asd_ha->pcidev);

833
	err = request_irq(asd_ha->pcidev->irq, asd_hw_isr, IRQF_SHARED,
J
James Bottomley 已提交
834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849
			  ASD_DRIVER_NAME, asd_ha);
	if (err) {
		asd_printk("couldn't get irq %d for %s\n",
			   asd_ha->pcidev->irq, pci_name(asd_ha->pcidev));
		goto Err_irq;
	}
	asd_enable_ints(asd_ha);

	err = asd_init_post_escbs(asd_ha);
	if (err) {
		asd_printk("couldn't post escbs for %s\n",
			   pci_name(asd_ha->pcidev));
		goto Err_escbs;
	}
	ASD_DPRINTK("escbs posted\n");

850 851 852
	err = asd_create_dev_attrs(asd_ha);
	if (err)
		goto Err_dev_attrs;
J
James Bottomley 已提交
853 854 855 856 857

	err = asd_register_sas_ha(asd_ha);
	if (err)
		goto Err_reg_sas;

858
	scsi_scan_host(shost);
J
James Bottomley 已提交
859 860

	return 0;
861

J
James Bottomley 已提交
862 863
Err_reg_sas:
	asd_remove_dev_attrs(asd_ha);
864
Err_dev_attrs:
J
James Bottomley 已提交
865 866 867 868 869 870 871 872 873 874 875
Err_escbs:
	asd_disable_ints(asd_ha);
	free_irq(dev->irq, asd_ha);
Err_irq:
	if (use_msi)
		pci_disable_msi(dev);
	asd_chip_hardrst(asd_ha);
Err_free_cache:
	asd_destroy_ha_caches(asd_ha);
Err_unmap:
	asd_unmap_ha(asd_ha);
876 877
Err_remove:
	scsi_remove_host(shost);
J
James Bottomley 已提交
878 879
Err_free:
	kfree(asd_ha);
880 881
Err_put:
	scsi_host_put(shost);
J
James Bottomley 已提交
882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902
Err:
	pci_disable_device(dev);
	return err;
}

static void asd_free_queues(struct asd_ha_struct *asd_ha)
{
	unsigned long flags;
	LIST_HEAD(pending);
	struct list_head *n, *pos;

	spin_lock_irqsave(&asd_ha->seq.pend_q_lock, flags);
	asd_ha->seq.pending = 0;
	list_splice_init(&asd_ha->seq.pend_q, &pending);
	spin_unlock_irqrestore(&asd_ha->seq.pend_q_lock, flags);

	if (!list_empty(&pending))
		ASD_DPRINTK("Uh-oh! Pending is not empty!\n");

	list_for_each_safe(pos, n, &pending) {
		struct asd_ascb *ascb = list_entry(pos, struct asd_ascb, list);
903 904 905 906 907 908 909 910 911
		/*
		 * Delete unexpired ascb timers.  This may happen if we issue
		 * a CONTROL PHY scb to an adapter and rmmod before the scb
		 * times out.  Apparently we don't wait for the CONTROL PHY
		 * to complete, so it doesn't matter if we kill the timer.
		 */
		del_timer_sync(&ascb->timer);
		WARN_ON(ascb->scb->header.opcode != CONTROL_PHY);

J
James Bottomley 已提交
912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956
		list_del_init(pos);
		ASD_DPRINTK("freeing from pending\n");
		asd_ascb_free(ascb);
	}
}

static void asd_turn_off_leds(struct asd_ha_struct *asd_ha)
{
	u8 phy_mask = asd_ha->hw_prof.enabled_phys;
	u8 i;

	for_each_phy(phy_mask, phy_mask, i) {
		asd_turn_led(asd_ha, i, 0);
		asd_control_led(asd_ha, i, 0);
	}
}

static void __devexit asd_pci_remove(struct pci_dev *dev)
{
	struct asd_ha_struct *asd_ha = pci_get_drvdata(dev);

	if (!asd_ha)
		return;

	asd_unregister_sas_ha(asd_ha);

	asd_disable_ints(asd_ha);

	asd_remove_dev_attrs(asd_ha);

	/* XXX more here as needed */

	free_irq(dev->irq, asd_ha);
	if (use_msi)
		pci_disable_msi(asd_ha->pcidev);
	asd_turn_off_leds(asd_ha);
	asd_chip_hardrst(asd_ha);
	asd_free_queues(asd_ha);
	asd_destroy_ha_caches(asd_ha);
	asd_unmap_ha(asd_ha);
	kfree(asd_ha);
	pci_disable_device(dev);
	return;
}

957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978
static void asd_scan_start(struct Scsi_Host *shost)
{
	struct asd_ha_struct *asd_ha;
	int err;

	asd_ha = SHOST_TO_SAS_HA(shost)->lldd_ha;
	err = asd_enable_phys(asd_ha, asd_ha->hw_prof.enabled_phys);
	if (err)
		asd_printk("Couldn't enable phys, err:%d\n", err);
}

static int asd_scan_finished(struct Scsi_Host *shost, unsigned long time)
{
	/* give the phy enabling interrupt event time to come in (1s
	 * is empirically about all it takes) */
	if (time < HZ)
		return 0;
	/* Wait for discovery to finish */
	scsi_flush_work(shost);
	return 1;
}

J
James Bottomley 已提交
979 980 981 982 983 984
static ssize_t asd_version_show(struct device_driver *driver, char *buf)
{
	return snprintf(buf, PAGE_SIZE, "%s\n", ASD_DRIVER_VERSION);
}
static DRIVER_ATTR(version, S_IRUGO, asd_version_show, NULL);

985
static int asd_create_driver_attrs(struct device_driver *driver)
J
James Bottomley 已提交
986
{
987
	return driver_create_file(driver, &driver_attr_version);
J
James Bottomley 已提交
988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004
}

static void asd_remove_driver_attrs(struct device_driver *driver)
{
	driver_remove_file(driver, &driver_attr_version);
}

static struct sas_domain_function_template aic94xx_transport_functions = {
	.lldd_dev_found		= asd_dev_found,
	.lldd_dev_gone		= asd_dev_gone,

	.lldd_execute_task	= asd_execute_task,

	.lldd_abort_task	= asd_abort_task,
	.lldd_abort_task_set	= asd_abort_task_set,
	.lldd_clear_aca		= asd_clear_aca,
	.lldd_clear_task_set	= asd_clear_task_set,
1005
	.lldd_I_T_nexus_reset	= asd_I_T_nexus_reset,
J
James Bottomley 已提交
1006 1007 1008 1009 1010 1011 1012 1013 1014 1015
	.lldd_lu_reset		= asd_lu_reset,
	.lldd_query_task	= asd_query_task,

	.lldd_clear_nexus_port	= asd_clear_nexus_port,
	.lldd_clear_nexus_ha	= asd_clear_nexus_ha,

	.lldd_control_phy	= asd_control_phy,
};

static const struct pci_device_id aic94xx_pci_table[] __devinitdata = {
1016 1017 1018 1019 1020 1021 1022 1023 1024
	{PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x410),0, 0, 1},
	{PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x412),0, 0, 1},
	{PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x416),0, 0, 1},
	{PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x41E),0, 0, 1},
	{PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x41F),0, 0, 1},
	{PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x430),0, 0, 2},
	{PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x432),0, 0, 2},
	{PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x43E),0, 0, 2},
	{PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x43F),0, 0, 2},
J
James Bottomley 已提交
1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050
	{}
};

MODULE_DEVICE_TABLE(pci, aic94xx_pci_table);

static struct pci_driver aic94xx_pci_driver = {
	.name		= ASD_DRIVER_NAME,
	.id_table	= aic94xx_pci_table,
	.probe		= asd_pci_probe,
	.remove		= __devexit_p(asd_pci_remove),
};

static int __init aic94xx_init(void)
{
	int err;


	asd_printk("%s version %s loaded\n", ASD_DRIVER_DESCRIPTION,
		   ASD_DRIVER_VERSION);

	err = asd_create_global_caches();
	if (err)
		return err;

	aic94xx_transport_template =
		sas_domain_attach_transport(&aic94xx_transport_functions);
1051
	if (!aic94xx_transport_template)
J
James Bottomley 已提交
1052 1053 1054 1055 1056 1057
		goto out_destroy_caches;

	err = pci_register_driver(&aic94xx_pci_driver);
	if (err)
		goto out_release_transport;

1058 1059 1060
	err = asd_create_driver_attrs(&aic94xx_pci_driver.driver);
	if (err)
		goto out_unregister_pcidrv;
J
James Bottomley 已提交
1061 1062 1063

	return err;

1064 1065
 out_unregister_pcidrv:
	pci_unregister_driver(&aic94xx_pci_driver);
J
James Bottomley 已提交
1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078
 out_release_transport:
	sas_release_transport(aic94xx_transport_template);
 out_destroy_caches:
	asd_destroy_global_caches();

	return err;
}

static void __exit aic94xx_exit(void)
{
	asd_remove_driver_attrs(&aic94xx_pci_driver.driver);
	pci_unregister_driver(&aic94xx_pci_driver);
	sas_release_transport(aic94xx_transport_template);
1079
	asd_release_firmware();
J
James Bottomley 已提交
1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091
	asd_destroy_global_caches();
	asd_printk("%s version %s unloaded\n", ASD_DRIVER_DESCRIPTION,
		   ASD_DRIVER_VERSION);
}

module_init(aic94xx_init);
module_exit(aic94xx_exit);

MODULE_AUTHOR("Luben Tuikov <luben_tuikov@adaptec.com>");
MODULE_DESCRIPTION(ASD_DRIVER_DESCRIPTION);
MODULE_LICENSE("GPL v2");
MODULE_VERSION(ASD_DRIVER_VERSION);