mpt2sas_scsih.c 205.7 KB
Newer Older
E
Eric Moore 已提交
1 2 3 4
/*
 * Scsi Host Layer for MPT (Message Passing Technology) based controllers
 *
 * This code is based on drivers/scsi/mpt2sas/mpt2_scsih.c
K
Kashyap, Desai 已提交
5
 * Copyright (C) 2007-2010  LSI Corporation
E
Eric Moore 已提交
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 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54
 *  (mailto:DL-MPTFusionLinux@lsi.com)
 *
 * This program 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; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program 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.
 *
 * NO WARRANTY
 * THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
 * CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
 * LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
 * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
 * solely responsible for determining the appropriateness of using and
 * distributing the Program and assumes all risks associated with its
 * exercise of rights under this Agreement, including but not limited to
 * the risks and costs of program errors, damage to or loss of data,
 * programs or equipment, and unavailability or interruption of operations.

 * DISCLAIMER OF LIABILITY
 * NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
 * USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
 * HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES

 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
 * USA.
 */

#include <linux/version.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/errno.h>
#include <linux/blkdev.h>
#include <linux/sched.h>
#include <linux/workqueue.h>
#include <linux/delay.h>
#include <linux/pci.h>
#include <linux/interrupt.h>
55
#include <linux/aer.h>
56
#include <linux/raid_class.h>
57
#include <linux/slab.h>
E
Eric Moore 已提交
58 59 60 61 62 63 64 65 66 67 68 69 70 71 72

#include "mpt2sas_base.h"

MODULE_AUTHOR(MPT2SAS_AUTHOR);
MODULE_DESCRIPTION(MPT2SAS_DESCRIPTION);
MODULE_LICENSE("GPL");
MODULE_VERSION(MPT2SAS_DRIVER_VERSION);

#define RAID_CHANNEL 1

/* forward proto's */
static void _scsih_expander_node_remove(struct MPT2SAS_ADAPTER *ioc,
    struct _sas_node *sas_expander);
static void _firmware_event_work(struct work_struct *work);

73 74
static u8 _scsih_check_for_pending_tm(struct MPT2SAS_ADAPTER *ioc, u16 smid);

E
Eric Moore 已提交
75
/* global parameters */
76
LIST_HEAD(mpt2sas_ioc_list);
E
Eric Moore 已提交
77 78 79 80 81 82 83

/* local parameters */
static u8 scsi_io_cb_idx = -1;
static u8 tm_cb_idx = -1;
static u8 ctl_cb_idx = -1;
static u8 base_cb_idx = -1;
static u8 transport_cb_idx = -1;
84
static u8 scsih_cb_idx = -1;
E
Eric Moore 已提交
85 86 87
static u8 config_cb_idx = -1;
static int mpt_ids;

88
static u8 tm_tr_cb_idx = -1 ;
89
static u8 tm_tr_volume_cb_idx = -1 ;
90 91
static u8 tm_sas_control_cb_idx = -1;

E
Eric Moore 已提交
92
/* command line options */
93
static u32 logging_level;
E
Eric Moore 已提交
94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115
MODULE_PARM_DESC(logging_level, " bits for enabling additional logging info "
    "(default=0)");

/* scsi-mid layer global parmeter is max_report_luns, which is 511 */
#define MPT2SAS_MAX_LUN (16895)
static int max_lun = MPT2SAS_MAX_LUN;
module_param(max_lun, int, 0);
MODULE_PARM_DESC(max_lun, " max lun, default=16895 ");

/**
 * struct sense_info - common structure for obtaining sense keys
 * @skey: sense key
 * @asc: additional sense code
 * @ascq: additional sense code qualifier
 */
struct sense_info {
	u8 skey;
	u8 asc;
	u8 ascq;
};


116 117
#define MPT2SAS_RESCAN_AFTER_HOST_RESET (0xFFFF)

E
Eric Moore 已提交
118 119 120 121
/**
 * struct fw_event_work - firmware event struct
 * @list: link list framework
 * @work: work object (ioc->fault_reset_work_q)
122
 * @cancel_pending_work: flag set during reset handling
E
Eric Moore 已提交
123 124
 * @ioc: per adapter object
 * @VF_ID: virtual function id
125
 * @VP_ID: virtual port id
E
Eric Moore 已提交
126 127 128 129 130 131 132 133
 * @ignore: flag meaning this event has been marked to ignore
 * @event: firmware event MPI2_EVENT_XXX defined in mpt2_ioc.h
 * @event_data: reply event data payload follows
 *
 * This object stored on ioc->fw_event_list.
 */
struct fw_event_work {
	struct list_head 	list;
134 135
	u8			cancel_pending_work;
	struct delayed_work	delayed_work;
E
Eric Moore 已提交
136 137
	struct MPT2SAS_ADAPTER *ioc;
	u8			VF_ID;
138
	u8			VP_ID;
E
Eric Moore 已提交
139 140 141 142 143
	u8			ignore;
	u16			event;
	void			*event_data;
};

144 145 146
/* raid transport support */
static struct raid_template *mpt2sas_raid_template;

E
Eric Moore 已提交
147 148 149 150 151 152 153 154 155 156 157 158
/**
 * struct _scsi_io_transfer - scsi io transfer
 * @handle: sas device handle (assigned by firmware)
 * @is_raid: flag set for hidden raid components
 * @dir: DMA_TO_DEVICE, DMA_FROM_DEVICE,
 * @data_length: data transfer length
 * @data_dma: dma pointer to data
 * @sense: sense data
 * @lun: lun number
 * @cdb_length: cdb length
 * @cdb: cdb contents
 * @timeout: timeout for this command
159 160 161
 * @VF_ID: virtual function id
 * @VP_ID: virtual port id
 * @valid_reply: flag set for reply message
E
Eric Moore 已提交
162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182
 * @sense_length: sense length
 * @ioc_status: ioc status
 * @scsi_state: scsi state
 * @scsi_status: scsi staus
 * @log_info: log information
 * @transfer_length: data length transfer when there is a reply message
 *
 * Used for sending internal scsi commands to devices within this module.
 * Refer to _scsi_send_scsi_io().
 */
struct _scsi_io_transfer {
	u16	handle;
	u8	is_raid;
	enum dma_data_direction dir;
	u32	data_length;
	dma_addr_t data_dma;
	u8 	sense[SCSI_SENSE_BUFFERSIZE];
	u32	lun;
	u8	cdb_length;
	u8	cdb[32];
	u8	timeout;
183 184
	u8	VF_ID;
	u8	VP_ID;
E
Eric Moore 已提交
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
	u8	valid_reply;
  /* the following bits are only valid when 'valid_reply = 1' */
	u32	sense_length;
	u16	ioc_status;
	u8	scsi_state;
	u8	scsi_status;
	u32	log_info;
	u32	transfer_length;
};

/*
 * The pci device ids are defined in mpi/mpi2_cnfg.h.
 */
static struct pci_device_id scsih_pci_table[] = {
	{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2004,
		PCI_ANY_ID, PCI_ANY_ID },
	/* Falcon ~ 2008*/
	{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2008,
		PCI_ANY_ID, PCI_ANY_ID },
	/* Liberator ~ 2108 */
	{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2108_1,
		PCI_ANY_ID, PCI_ANY_ID },
	{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2108_2,
		PCI_ANY_ID, PCI_ANY_ID },
	{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2108_3,
		PCI_ANY_ID, PCI_ANY_ID },
211
	/* Meteor ~ 2116 */
E
Eric Moore 已提交
212 213 214 215
	{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2116_1,
		PCI_ANY_ID, PCI_ANY_ID },
	{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2116_2,
		PCI_ANY_ID, PCI_ANY_ID },
216 217 218 219 220 221 222 223 224 225 226 227 228
	/* Thunderbolt ~ 2208 */
	{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_1,
		PCI_ANY_ID, PCI_ANY_ID },
	{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_2,
		PCI_ANY_ID, PCI_ANY_ID },
	{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_3,
		PCI_ANY_ID, PCI_ANY_ID },
	{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_4,
		PCI_ANY_ID, PCI_ANY_ID },
	{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_5,
		PCI_ANY_ID, PCI_ANY_ID },
	{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_6,
		PCI_ANY_ID, PCI_ANY_ID },
229 230
	/* Mustang ~ 2308 */
	{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2308_1,
231
		PCI_ANY_ID, PCI_ANY_ID },
232 233 234
	{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2308_2,
		PCI_ANY_ID, PCI_ANY_ID },
	{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2308_3,
235
		PCI_ANY_ID, PCI_ANY_ID },
E
Eric Moore 已提交
236 237 238 239 240
	{0}	/* Terminating entry */
};
MODULE_DEVICE_TABLE(pci, scsih_pci_table);

/**
241
 * _scsih_set_debug_level - global setting of ioc->logging_level.
E
Eric Moore 已提交
242 243 244 245
 *
 * Note: The logging levels are defined in mpt2sas_debug.h.
 */
static int
246
_scsih_set_debug_level(const char *val, struct kernel_param *kp)
E
Eric Moore 已提交
247 248 249 250 251 252 253 254
{
	int ret = param_set_int(val, kp);
	struct MPT2SAS_ADAPTER *ioc;

	if (ret)
		return ret;

	printk(KERN_INFO "setting logging_level(0x%08x)\n", logging_level);
255
	list_for_each_entry(ioc, &mpt2sas_ioc_list, list)
E
Eric Moore 已提交
256 257 258
		ioc->logging_level = logging_level;
	return 0;
}
259
module_param_call(logging_level, _scsih_set_debug_level, param_get_int,
E
Eric Moore 已提交
260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351
    &logging_level, 0644);

/**
 * _scsih_srch_boot_sas_address - search based on sas_address
 * @sas_address: sas address
 * @boot_device: boot device object from bios page 2
 *
 * Returns 1 when there's a match, 0 means no match.
 */
static inline int
_scsih_srch_boot_sas_address(u64 sas_address,
    Mpi2BootDeviceSasWwid_t *boot_device)
{
	return (sas_address == le64_to_cpu(boot_device->SASAddress)) ?  1 : 0;
}

/**
 * _scsih_srch_boot_device_name - search based on device name
 * @device_name: device name specified in INDENTIFY fram
 * @boot_device: boot device object from bios page 2
 *
 * Returns 1 when there's a match, 0 means no match.
 */
static inline int
_scsih_srch_boot_device_name(u64 device_name,
    Mpi2BootDeviceDeviceName_t *boot_device)
{
	return (device_name == le64_to_cpu(boot_device->DeviceName)) ? 1 : 0;
}

/**
 * _scsih_srch_boot_encl_slot - search based on enclosure_logical_id/slot
 * @enclosure_logical_id: enclosure logical id
 * @slot_number: slot number
 * @boot_device: boot device object from bios page 2
 *
 * Returns 1 when there's a match, 0 means no match.
 */
static inline int
_scsih_srch_boot_encl_slot(u64 enclosure_logical_id, u16 slot_number,
    Mpi2BootDeviceEnclosureSlot_t *boot_device)
{
	return (enclosure_logical_id == le64_to_cpu(boot_device->
	    EnclosureLogicalID) && slot_number == le16_to_cpu(boot_device->
	    SlotNumber)) ? 1 : 0;
}

/**
 * _scsih_is_boot_device - search for matching boot device.
 * @sas_address: sas address
 * @device_name: device name specified in INDENTIFY fram
 * @enclosure_logical_id: enclosure logical id
 * @slot_number: slot number
 * @form: specifies boot device form
 * @boot_device: boot device object from bios page 2
 *
 * Returns 1 when there's a match, 0 means no match.
 */
static int
_scsih_is_boot_device(u64 sas_address, u64 device_name,
    u64 enclosure_logical_id, u16 slot, u8 form,
    Mpi2BiosPage2BootDevice_t *boot_device)
{
	int rc = 0;

	switch (form) {
	case MPI2_BIOSPAGE2_FORM_SAS_WWID:
		if (!sas_address)
			break;
		rc = _scsih_srch_boot_sas_address(
		    sas_address, &boot_device->SasWwid);
		break;
	case MPI2_BIOSPAGE2_FORM_ENCLOSURE_SLOT:
		if (!enclosure_logical_id)
			break;
		rc = _scsih_srch_boot_encl_slot(
		    enclosure_logical_id,
		    slot, &boot_device->EnclosureSlot);
		break;
	case MPI2_BIOSPAGE2_FORM_DEVICE_NAME:
		if (!device_name)
			break;
		rc = _scsih_srch_boot_device_name(
		    device_name, &boot_device->DeviceName);
		break;
	case MPI2_BIOSPAGE2_FORM_NO_DEVICE_SPECIFIED:
		break;
	}

	return rc;
}

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
/**
 * _scsih_get_sas_address - set the sas_address for given device handle
 * @handle: device handle
 * @sas_address: sas address
 *
 * Returns 0 success, non-zero when failure
 */
static int
_scsih_get_sas_address(struct MPT2SAS_ADAPTER *ioc, u16 handle,
    u64 *sas_address)
{
	Mpi2SasDevicePage0_t sas_device_pg0;
	Mpi2ConfigReply_t mpi_reply;
	u32 ioc_status;

	if (handle <= ioc->sas_hba.num_phys) {
		*sas_address = ioc->sas_hba.sas_address;
		return 0;
	} else
		*sas_address = 0;

	if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
	    MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) {
		printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
		    ioc->name, __FILE__, __LINE__, __func__);
		return -ENXIO;
	}

	ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
	    MPI2_IOCSTATUS_MASK;
	if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
		printk(MPT2SAS_ERR_FMT "handle(0x%04x), ioc_status(0x%04x)"
		    "\nfailure at %s:%d/%s()!\n", ioc->name, handle, ioc_status,
		     __FILE__, __LINE__, __func__);
		return -EIO;
	}

	*sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
	return 0;
}

E
Eric Moore 已提交
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
/**
 * _scsih_determine_boot_device - determine boot device.
 * @ioc: per adapter object
 * @device: either sas_device or raid_device object
 * @is_raid: [flag] 1 = raid object, 0 = sas object
 *
 * Determines whether this device should be first reported device to
 * to scsi-ml or sas transport, this purpose is for persistant boot device.
 * There are primary, alternate, and current entries in bios page 2. The order
 * priority is primary, alternate, then current.  This routine saves
 * the corresponding device object and is_raid flag in the ioc object.
 * The saved data to be used later in _scsih_probe_boot_devices().
 */
static void
_scsih_determine_boot_device(struct MPT2SAS_ADAPTER *ioc,
    void *device, u8 is_raid)
{
	struct _sas_device *sas_device;
	struct _raid_device *raid_device;
	u64 sas_address;
	u64 device_name;
	u64 enclosure_logical_id;
	u16 slot;

	 /* only process this function when driver loads */
	if (!ioc->wait_for_port_enable_to_complete)
		return;

	if (!is_raid) {
		sas_device = device;
		sas_address = sas_device->sas_address;
		device_name = sas_device->device_name;
		enclosure_logical_id = sas_device->enclosure_logical_id;
		slot = sas_device->slot;
	} else {
		raid_device = device;
		sas_address = raid_device->wwid;
		device_name = 0;
		enclosure_logical_id = 0;
		slot = 0;
	}

	if (!ioc->req_boot_device.device) {
		if (_scsih_is_boot_device(sas_address, device_name,
		    enclosure_logical_id, slot,
		    (ioc->bios_pg2.ReqBootDeviceForm &
		    MPI2_BIOSPAGE2_FORM_MASK),
		    &ioc->bios_pg2.RequestedBootDevice)) {
441
			dinitprintk(ioc, printk(MPT2SAS_INFO_FMT
E
Eric Moore 已提交
442 443 444 445 446 447 448 449 450 451 452 453 454 455
			   "%s: req_boot_device(0x%016llx)\n",
			    ioc->name, __func__,
			    (unsigned long long)sas_address));
			ioc->req_boot_device.device = device;
			ioc->req_boot_device.is_raid = is_raid;
		}
	}

	if (!ioc->req_alt_boot_device.device) {
		if (_scsih_is_boot_device(sas_address, device_name,
		    enclosure_logical_id, slot,
		    (ioc->bios_pg2.ReqAltBootDeviceForm &
		    MPI2_BIOSPAGE2_FORM_MASK),
		    &ioc->bios_pg2.RequestedAltBootDevice)) {
456
			dinitprintk(ioc, printk(MPT2SAS_INFO_FMT
E
Eric Moore 已提交
457 458 459 460 461 462 463 464 465 466 467 468 469 470
			   "%s: req_alt_boot_device(0x%016llx)\n",
			    ioc->name, __func__,
			    (unsigned long long)sas_address));
			ioc->req_alt_boot_device.device = device;
			ioc->req_alt_boot_device.is_raid = is_raid;
		}
	}

	if (!ioc->current_boot_device.device) {
		if (_scsih_is_boot_device(sas_address, device_name,
		    enclosure_logical_id, slot,
		    (ioc->bios_pg2.CurrentBootDeviceForm &
		    MPI2_BIOSPAGE2_FORM_MASK),
		    &ioc->bios_pg2.CurrentBootDevice)) {
471
			dinitprintk(ioc, printk(MPT2SAS_INFO_FMT
E
Eric Moore 已提交
472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493
			   "%s: current_boot_device(0x%016llx)\n",
			    ioc->name, __func__,
			    (unsigned long long)sas_address));
			ioc->current_boot_device.device = device;
			ioc->current_boot_device.is_raid = is_raid;
		}
	}
}

/**
 * mpt2sas_scsih_sas_device_find_by_sas_address - sas device search
 * @ioc: per adapter object
 * @sas_address: sas address
 * Context: Calling function should acquire ioc->sas_device_lock
 *
 * This searches for sas_device based on sas_address, then return sas_device
 * object.
 */
struct _sas_device *
mpt2sas_scsih_sas_device_find_by_sas_address(struct MPT2SAS_ADAPTER *ioc,
    u64 sas_address)
{
494
	struct _sas_device *sas_device;
E
Eric Moore 已提交
495

496 497 498 499 500 501 502 503 504
	list_for_each_entry(sas_device, &ioc->sas_device_list, list)
		if (sas_device->sas_address == sas_address)
			return sas_device;

	list_for_each_entry(sas_device, &ioc->sas_device_init_list, list)
		if (sas_device->sas_address == sas_address)
			return sas_device;

	return NULL;
E
Eric Moore 已提交
505 506 507 508 509 510 511 512 513 514 515 516 517 518
}

/**
 * _scsih_sas_device_find_by_handle - sas device search
 * @ioc: per adapter object
 * @handle: sas device handle (assigned by firmware)
 * Context: Calling function should acquire ioc->sas_device_lock
 *
 * This searches for sas_device based on sas_address, then return sas_device
 * object.
 */
static struct _sas_device *
_scsih_sas_device_find_by_handle(struct MPT2SAS_ADAPTER *ioc, u16 handle)
{
519 520 521 522 523 524 525 526 527
	struct _sas_device *sas_device;

	list_for_each_entry(sas_device, &ioc->sas_device_list, list)
		if (sas_device->handle == handle)
			return sas_device;

	list_for_each_entry(sas_device, &ioc->sas_device_init_list, list)
		if (sas_device->handle == handle)
			return sas_device;
E
Eric Moore 已提交
528

529
	return NULL;
E
Eric Moore 已提交
530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545
}

/**
 * _scsih_sas_device_remove - remove sas_device from list.
 * @ioc: per adapter object
 * @sas_device: the sas_device object
 * Context: This function will acquire ioc->sas_device_lock.
 *
 * Removing object and freeing associated memory from the ioc->sas_device_list.
 */
static void
_scsih_sas_device_remove(struct MPT2SAS_ADAPTER *ioc,
    struct _sas_device *sas_device)
{
	unsigned long flags;

546 547 548
	if (!sas_device)
		return;

E
Eric Moore 已提交
549
	spin_lock_irqsave(&ioc->sas_device_lock, flags);
550 551 552 553 554
	if (mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
	    sas_device->sas_address)) {
		list_del(&sas_device->list);
		kfree(sas_device);
	}
E
Eric Moore 已提交
555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571
	spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
}

/**
 * _scsih_sas_device_add - insert sas_device to the list.
 * @ioc: per adapter object
 * @sas_device: the sas_device object
 * Context: This function will acquire ioc->sas_device_lock.
 *
 * Adding new object to the ioc->sas_device_list.
 */
static void
_scsih_sas_device_add(struct MPT2SAS_ADAPTER *ioc,
    struct _sas_device *sas_device)
{
	unsigned long flags;

572
	dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: handle"
E
Eric Moore 已提交
573 574 575 576 577 578 579
	    "(0x%04x), sas_addr(0x%016llx)\n", ioc->name, __func__,
	    sas_device->handle, (unsigned long long)sas_device->sas_address));

	spin_lock_irqsave(&ioc->sas_device_lock, flags);
	list_add_tail(&sas_device->list, &ioc->sas_device_list);
	spin_unlock_irqrestore(&ioc->sas_device_lock, flags);

580 581
	if (!mpt2sas_transport_port_add(ioc, sas_device->handle,
	     sas_device->sas_address_parent))
E
Eric Moore 已提交
582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598
		_scsih_sas_device_remove(ioc, sas_device);
}

/**
 * _scsih_sas_device_init_add - insert sas_device to the list.
 * @ioc: per adapter object
 * @sas_device: the sas_device object
 * Context: This function will acquire ioc->sas_device_lock.
 *
 * Adding new object at driver load time to the ioc->sas_device_init_list.
 */
static void
_scsih_sas_device_init_add(struct MPT2SAS_ADAPTER *ioc,
    struct _sas_device *sas_device)
{
	unsigned long flags;

599
	dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: handle"
E
Eric Moore 已提交
600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700
	    "(0x%04x), sas_addr(0x%016llx)\n", ioc->name, __func__,
	    sas_device->handle, (unsigned long long)sas_device->sas_address));

	spin_lock_irqsave(&ioc->sas_device_lock, flags);
	list_add_tail(&sas_device->list, &ioc->sas_device_init_list);
	spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
	_scsih_determine_boot_device(ioc, sas_device, 0);
}

/**
 * _scsih_raid_device_find_by_id - raid device search
 * @ioc: per adapter object
 * @id: sas device target id
 * @channel: sas device channel
 * Context: Calling function should acquire ioc->raid_device_lock
 *
 * This searches for raid_device based on target id, then return raid_device
 * object.
 */
static struct _raid_device *
_scsih_raid_device_find_by_id(struct MPT2SAS_ADAPTER *ioc, int id, int channel)
{
	struct _raid_device *raid_device, *r;

	r = NULL;
	list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
		if (raid_device->id == id && raid_device->channel == channel) {
			r = raid_device;
			goto out;
		}
	}

 out:
	return r;
}

/**
 * _scsih_raid_device_find_by_handle - raid device search
 * @ioc: per adapter object
 * @handle: sas device handle (assigned by firmware)
 * Context: Calling function should acquire ioc->raid_device_lock
 *
 * This searches for raid_device based on handle, then return raid_device
 * object.
 */
static struct _raid_device *
_scsih_raid_device_find_by_handle(struct MPT2SAS_ADAPTER *ioc, u16 handle)
{
	struct _raid_device *raid_device, *r;

	r = NULL;
	list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
		if (raid_device->handle != handle)
			continue;
		r = raid_device;
		goto out;
	}

 out:
	return r;
}

/**
 * _scsih_raid_device_find_by_wwid - raid device search
 * @ioc: per adapter object
 * @handle: sas device handle (assigned by firmware)
 * Context: Calling function should acquire ioc->raid_device_lock
 *
 * This searches for raid_device based on wwid, then return raid_device
 * object.
 */
static struct _raid_device *
_scsih_raid_device_find_by_wwid(struct MPT2SAS_ADAPTER *ioc, u64 wwid)
{
	struct _raid_device *raid_device, *r;

	r = NULL;
	list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
		if (raid_device->wwid != wwid)
			continue;
		r = raid_device;
		goto out;
	}

 out:
	return r;
}

/**
 * _scsih_raid_device_add - add raid_device object
 * @ioc: per adapter object
 * @raid_device: raid_device object
 *
 * This is added to the raid_device_list link list.
 */
static void
_scsih_raid_device_add(struct MPT2SAS_ADAPTER *ioc,
    struct _raid_device *raid_device)
{
	unsigned long flags;

701
	dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: handle"
E
Eric Moore 已提交
702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729
	    "(0x%04x), wwid(0x%016llx)\n", ioc->name, __func__,
	    raid_device->handle, (unsigned long long)raid_device->wwid));

	spin_lock_irqsave(&ioc->raid_device_lock, flags);
	list_add_tail(&raid_device->list, &ioc->raid_device_list);
	spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
}

/**
 * _scsih_raid_device_remove - delete raid_device object
 * @ioc: per adapter object
 * @raid_device: raid_device object
 *
 * This is removed from the raid_device_list link list.
 */
static void
_scsih_raid_device_remove(struct MPT2SAS_ADAPTER *ioc,
    struct _raid_device *raid_device)
{
	unsigned long flags;

	spin_lock_irqsave(&ioc->raid_device_lock, flags);
	list_del(&raid_device->list);
	memset(raid_device, 0, sizeof(struct _raid_device));
	kfree(raid_device);
	spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
}

730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754
/**
 * mpt2sas_scsih_expander_find_by_handle - expander device search
 * @ioc: per adapter object
 * @handle: expander handle (assigned by firmware)
 * Context: Calling function should acquire ioc->sas_device_lock
 *
 * This searches for expander device based on handle, then returns the
 * sas_node object.
 */
struct _sas_node *
mpt2sas_scsih_expander_find_by_handle(struct MPT2SAS_ADAPTER *ioc, u16 handle)
{
	struct _sas_node *sas_expander, *r;

	r = NULL;
	list_for_each_entry(sas_expander, &ioc->sas_expander_list, list) {
		if (sas_expander->handle != handle)
			continue;
		r = sas_expander;
		goto out;
	}
 out:
	return r;
}

E
Eric Moore 已提交
755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821
/**
 * mpt2sas_scsih_expander_find_by_sas_address - expander device search
 * @ioc: per adapter object
 * @sas_address: sas address
 * Context: Calling function should acquire ioc->sas_node_lock.
 *
 * This searches for expander device based on sas_address, then returns the
 * sas_node object.
 */
struct _sas_node *
mpt2sas_scsih_expander_find_by_sas_address(struct MPT2SAS_ADAPTER *ioc,
    u64 sas_address)
{
	struct _sas_node *sas_expander, *r;

	r = NULL;
	list_for_each_entry(sas_expander, &ioc->sas_expander_list, list) {
		if (sas_expander->sas_address != sas_address)
			continue;
		r = sas_expander;
		goto out;
	}
 out:
	return r;
}

/**
 * _scsih_expander_node_add - insert expander device to the list.
 * @ioc: per adapter object
 * @sas_expander: the sas_device object
 * Context: This function will acquire ioc->sas_node_lock.
 *
 * Adding new object to the ioc->sas_expander_list.
 *
 * Return nothing.
 */
static void
_scsih_expander_node_add(struct MPT2SAS_ADAPTER *ioc,
    struct _sas_node *sas_expander)
{
	unsigned long flags;

	spin_lock_irqsave(&ioc->sas_node_lock, flags);
	list_add_tail(&sas_expander->list, &ioc->sas_expander_list);
	spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
}

/**
 * _scsih_is_end_device - determines if device is an end device
 * @device_info: bitfield providing information about the device.
 * Context: none
 *
 * Returns 1 if end device.
 */
static int
_scsih_is_end_device(u32 device_info)
{
	if (device_info & MPI2_SAS_DEVICE_INFO_END_DEVICE &&
		((device_info & MPI2_SAS_DEVICE_INFO_SSP_TARGET) |
		(device_info & MPI2_SAS_DEVICE_INFO_STP_TARGET) |
		(device_info & MPI2_SAS_DEVICE_INFO_SATA_DEVICE)))
		return 1;
	else
		return 0;
}

/**
822
 * mptscsih_get_scsi_lookup - returns scmd entry
E
Eric Moore 已提交
823 824 825 826 827 828 829 830
 * @ioc: per adapter object
 * @smid: system request message index
 *
 * Returns the smid stored scmd pointer.
 */
static struct scsi_cmnd *
_scsih_scsi_lookup_get(struct MPT2SAS_ADAPTER *ioc, u16 smid)
{
831
	return ioc->scsi_lookup[smid - 1].scmd;
E
Eric Moore 已提交
832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853
}

/**
 * _scsih_scsi_lookup_find_by_scmd - scmd lookup
 * @ioc: per adapter object
 * @smid: system request message index
 * @scmd: pointer to scsi command object
 * Context: This function will acquire ioc->scsi_lookup_lock.
 *
 * This will search for a scmd pointer in the scsi_lookup array,
 * returning the revelent smid.  A returned value of zero means invalid.
 */
static u16
_scsih_scsi_lookup_find_by_scmd(struct MPT2SAS_ADAPTER *ioc, struct scsi_cmnd
    *scmd)
{
	u16 smid;
	unsigned long	flags;
	int i;

	spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
	smid = 0;
854
	for (i = 0; i < ioc->scsiio_depth; i++) {
E
Eric Moore 已提交
855
		if (ioc->scsi_lookup[i].scmd == scmd) {
856
			smid = ioc->scsi_lookup[i].smid;
E
Eric Moore 已提交
857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884
			goto out;
		}
	}
 out:
	spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
	return smid;
}

/**
 * _scsih_scsi_lookup_find_by_target - search for matching channel:id
 * @ioc: per adapter object
 * @id: target id
 * @channel: channel
 * Context: This function will acquire ioc->scsi_lookup_lock.
 *
 * This will search for a matching channel:id in the scsi_lookup array,
 * returning 1 if found.
 */
static u8
_scsih_scsi_lookup_find_by_target(struct MPT2SAS_ADAPTER *ioc, int id,
    int channel)
{
	u8 found;
	unsigned long	flags;
	int i;

	spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
	found = 0;
885
	for (i = 0 ; i < ioc->scsiio_depth; i++) {
E
Eric Moore 已提交
886 887 888 889 890 891 892 893 894 895 896 897
		if (ioc->scsi_lookup[i].scmd &&
		    (ioc->scsi_lookup[i].scmd->device->id == id &&
		    ioc->scsi_lookup[i].scmd->device->channel == channel)) {
			found = 1;
			goto out;
		}
	}
 out:
	spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
	return found;
}

E
Eric Moore 已提交
898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918
/**
 * _scsih_scsi_lookup_find_by_lun - search for matching channel:id:lun
 * @ioc: per adapter object
 * @id: target id
 * @lun: lun number
 * @channel: channel
 * Context: This function will acquire ioc->scsi_lookup_lock.
 *
 * This will search for a matching channel:id:lun in the scsi_lookup array,
 * returning 1 if found.
 */
static u8
_scsih_scsi_lookup_find_by_lun(struct MPT2SAS_ADAPTER *ioc, int id,
    unsigned int lun, int channel)
{
	u8 found;
	unsigned long	flags;
	int i;

	spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
	found = 0;
919
	for (i = 0 ; i < ioc->scsiio_depth; i++) {
E
Eric Moore 已提交
920 921 922 923 924 925 926 927 928 929 930 931 932
		if (ioc->scsi_lookup[i].scmd &&
		    (ioc->scsi_lookup[i].scmd->device->id == id &&
		    ioc->scsi_lookup[i].scmd->device->channel == channel &&
		    ioc->scsi_lookup[i].scmd->device->lun == lun)) {
			found = 1;
			goto out;
		}
	}
 out:
	spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
	return found;
}

E
Eric Moore 已提交
933
/**
934
 * _scsih_get_chain_buffer_tracker - obtain chain tracker
E
Eric Moore 已提交
935
 * @ioc: per adapter object
936
 * @smid: smid associated to an IO request
E
Eric Moore 已提交
937
 *
938
 * Returns chain tracker(from ioc->free_chain_list)
E
Eric Moore 已提交
939
 */
940 941
static struct chain_tracker *
_scsih_get_chain_buffer_tracker(struct MPT2SAS_ADAPTER *ioc, u16 smid)
E
Eric Moore 已提交
942
{
943 944
	struct chain_tracker *chain_req;
	unsigned long flags;
E
Eric Moore 已提交
945

946 947 948 949 950 951 952 953 954 955 956 957 958 959
	spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
	if (list_empty(&ioc->free_chain_list)) {
		spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
		printk(MPT2SAS_WARN_FMT "chain buffers not available\n",
		    ioc->name);
		return NULL;
	}
	chain_req = list_entry(ioc->free_chain_list.next,
	    struct chain_tracker, tracker_list);
	list_del_init(&chain_req->tracker_list);
	list_add_tail(&chain_req->tracker_list,
	    &ioc->scsi_lookup[smid - 1].chain_list);
	spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
	return chain_req;
E
Eric Moore 已提交
960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984
}

/**
 * _scsih_build_scatter_gather - main sg creation routine
 * @ioc: per adapter object
 * @scmd: scsi command
 * @smid: system request message index
 * Context: none.
 *
 * The main routine that builds scatter gather table from a given
 * scsi request sent via the .queuecommand main handler.
 *
 * Returns 0 success, anything else error
 */
static int
_scsih_build_scatter_gather(struct MPT2SAS_ADAPTER *ioc,
    struct scsi_cmnd *scmd, u16 smid)
{
	Mpi2SCSIIORequest_t *mpi_request;
	dma_addr_t chain_dma;
	struct scatterlist *sg_scmd;
	void *sg_local, *chain;
	u32 chain_offset;
	u32 chain_length;
	u32 chain_flags;
985
	int sges_left;
E
Eric Moore 已提交
986 987 988 989
	u32 sges_in_segment;
	u32 sgl_flags;
	u32 sgl_flags_last_element;
	u32 sgl_flags_end_buffer;
990
	struct chain_tracker *chain_req;
E
Eric Moore 已提交
991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006

	mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);

	/* init scatter gather flags */
	sgl_flags = MPI2_SGE_FLAGS_SIMPLE_ELEMENT;
	if (scmd->sc_data_direction == DMA_TO_DEVICE)
		sgl_flags |= MPI2_SGE_FLAGS_HOST_TO_IOC;
	sgl_flags_last_element = (sgl_flags | MPI2_SGE_FLAGS_LAST_ELEMENT)
	    << MPI2_SGE_FLAGS_SHIFT;
	sgl_flags_end_buffer = (sgl_flags | MPI2_SGE_FLAGS_LAST_ELEMENT |
	    MPI2_SGE_FLAGS_END_OF_BUFFER | MPI2_SGE_FLAGS_END_OF_LIST)
	    << MPI2_SGE_FLAGS_SHIFT;
	sgl_flags = sgl_flags << MPI2_SGE_FLAGS_SHIFT;

	sg_scmd = scsi_sglist(scmd);
	sges_left = scsi_dma_map(scmd);
1007
	if (sges_left < 0) {
E
Eric Moore 已提交
1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037
		sdev_printk(KERN_ERR, scmd->device, "pci_map_sg"
		" failed: request for %d bytes!\n", scsi_bufflen(scmd));
		return -ENOMEM;
	}

	sg_local = &mpi_request->SGL;
	sges_in_segment = ioc->max_sges_in_main_message;
	if (sges_left <= sges_in_segment)
		goto fill_in_last_segment;

	mpi_request->ChainOffset = (offsetof(Mpi2SCSIIORequest_t, SGL) +
	    (sges_in_segment * ioc->sge_size))/4;

	/* fill in main message segment when there is a chain following */
	while (sges_in_segment) {
		if (sges_in_segment == 1)
			ioc->base_add_sg_single(sg_local,
			    sgl_flags_last_element | sg_dma_len(sg_scmd),
			    sg_dma_address(sg_scmd));
		else
			ioc->base_add_sg_single(sg_local, sgl_flags |
			    sg_dma_len(sg_scmd), sg_dma_address(sg_scmd));
		sg_scmd = sg_next(sg_scmd);
		sg_local += ioc->sge_size;
		sges_left--;
		sges_in_segment--;
	}

	/* initializing the chain flags and pointers */
	chain_flags = MPI2_SGE_FLAGS_CHAIN_ELEMENT << MPI2_SGE_FLAGS_SHIFT;
1038 1039 1040 1041 1042
	chain_req = _scsih_get_chain_buffer_tracker(ioc, smid);
	if (!chain_req)
		return -1;
	chain = chain_req->chain_buffer;
	chain_dma = chain_req->chain_buffer_dma;
E
Eric Moore 已提交
1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077
	do {
		sges_in_segment = (sges_left <=
		    ioc->max_sges_in_chain_message) ? sges_left :
		    ioc->max_sges_in_chain_message;
		chain_offset = (sges_left == sges_in_segment) ?
		    0 : (sges_in_segment * ioc->sge_size)/4;
		chain_length = sges_in_segment * ioc->sge_size;
		if (chain_offset) {
			chain_offset = chain_offset <<
			    MPI2_SGE_CHAIN_OFFSET_SHIFT;
			chain_length += ioc->sge_size;
		}
		ioc->base_add_sg_single(sg_local, chain_flags | chain_offset |
		    chain_length, chain_dma);
		sg_local = chain;
		if (!chain_offset)
			goto fill_in_last_segment;

		/* fill in chain segments */
		while (sges_in_segment) {
			if (sges_in_segment == 1)
				ioc->base_add_sg_single(sg_local,
				    sgl_flags_last_element |
				    sg_dma_len(sg_scmd),
				    sg_dma_address(sg_scmd));
			else
				ioc->base_add_sg_single(sg_local, sgl_flags |
				    sg_dma_len(sg_scmd),
				    sg_dma_address(sg_scmd));
			sg_scmd = sg_next(sg_scmd);
			sg_local += ioc->sge_size;
			sges_left--;
			sges_in_segment--;
		}

1078 1079 1080 1081 1082
		chain_req = _scsih_get_chain_buffer_tracker(ioc, smid);
		if (!chain_req)
			return -1;
		chain = chain_req->chain_buffer;
		chain_dma = chain_req->chain_buffer_dma;
E
Eric Moore 已提交
1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104
	} while (1);


 fill_in_last_segment:

	/* fill the last segment */
	while (sges_left) {
		if (sges_left == 1)
			ioc->base_add_sg_single(sg_local, sgl_flags_end_buffer |
			    sg_dma_len(sg_scmd), sg_dma_address(sg_scmd));
		else
			ioc->base_add_sg_single(sg_local, sgl_flags |
			    sg_dma_len(sg_scmd), sg_dma_address(sg_scmd));
		sg_scmd = sg_next(sg_scmd);
		sg_local += ioc->sge_size;
		sges_left--;
	}

	return 0;
}

/**
1105
 * _scsih_adjust_queue_depth - setting device queue depth
E
Eric Moore 已提交
1106 1107 1108
 * @sdev: scsi device struct
 * @qdepth: requested queue depth
 *
1109 1110
 *
 * Returns nothing
E
Eric Moore 已提交
1111
 */
1112 1113
static void
_scsih_adjust_queue_depth(struct scsi_device *sdev, int qdepth)
E
Eric Moore 已提交
1114 1115 1116
{
	struct Scsi_Host *shost = sdev->host;
	int max_depth;
1117 1118 1119 1120 1121
	struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
	struct MPT2SAS_DEVICE *sas_device_priv_data;
	struct MPT2SAS_TARGET *sas_target_priv_data;
	struct _sas_device *sas_device;
	unsigned long flags;
E
Eric Moore 已提交
1122 1123

	max_depth = shost->can_queue;
1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143

	/* limit max device queue for SATA to 32 */
	sas_device_priv_data = sdev->hostdata;
	if (!sas_device_priv_data)
		goto not_sata;
	sas_target_priv_data = sas_device_priv_data->sas_target;
	if (!sas_target_priv_data)
		goto not_sata;
	if ((sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME))
		goto not_sata;
	spin_lock_irqsave(&ioc->sas_device_lock, flags);
	sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
	   sas_device_priv_data->sas_target->sas_address);
	spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
	if (sas_device && sas_device->device_info &
	    MPI2_SAS_DEVICE_INFO_SATA_DEVICE)
		max_depth = MPT2SAS_SATA_QUEUE_DEPTH;

 not_sata:

E
Eric Moore 已提交
1144 1145 1146 1147
	if (!sdev->tagged_supported)
		max_depth = 1;
	if (qdepth > max_depth)
		qdepth = max_depth;
1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168
	scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
}

/**
 * _scsih_change_queue_depth - setting device queue depth
 * @sdev: scsi device struct
 * @qdepth: requested queue depth
 * @reason: SCSI_QDEPTH_DEFAULT/SCSI_QDEPTH_QFULL/SCSI_QDEPTH_RAMP_UP
 * (see include/scsi/scsi_host.h for definition)
 *
 * Returns queue depth.
 */
static int
_scsih_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason)
{
	if (reason == SCSI_QDEPTH_DEFAULT || reason == SCSI_QDEPTH_RAMP_UP)
		_scsih_adjust_queue_depth(sdev, qdepth);
	else if (reason == SCSI_QDEPTH_QFULL)
		scsi_track_queue_full(sdev, qdepth);
	else
		return -EOPNOTSUPP;
E
Eric Moore 已提交
1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180

	if (sdev->inquiry_len > 7)
		sdev_printk(KERN_INFO, sdev, "qdepth(%d), tagged(%d), "
		"simple(%d), ordered(%d), scsi_level(%d), cmd_que(%d)\n",
		sdev->queue_depth, sdev->tagged_supported, sdev->simple_tags,
		sdev->ordered_tags, sdev->scsi_level,
		(sdev->inquiry[7] & 2) >> 1);

	return sdev->queue_depth;
}

/**
1181
 * _scsih_change_queue_type - changing device queue tag type
E
Eric Moore 已提交
1182 1183 1184 1185 1186 1187
 * @sdev: scsi device struct
 * @tag_type: requested tag type
 *
 * Returns queue tag type.
 */
static int
1188
_scsih_change_queue_type(struct scsi_device *sdev, int tag_type)
E
Eric Moore 已提交
1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202
{
	if (sdev->tagged_supported) {
		scsi_set_tag_type(sdev, tag_type);
		if (tag_type)
			scsi_activate_tcq(sdev, sdev->queue_depth);
		else
			scsi_deactivate_tcq(sdev, sdev->queue_depth);
	} else
		tag_type = 0;

	return tag_type;
}

/**
1203
 * _scsih_target_alloc - target add routine
E
Eric Moore 已提交
1204 1205 1206 1207 1208 1209
 * @starget: scsi target struct
 *
 * Returns 0 if ok. Any other return is assumed to be an error and
 * the device is ignored.
 */
static int
1210
_scsih_target_alloc(struct scsi_target *starget)
E
Eric Moore 已提交
1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254
{
	struct Scsi_Host *shost = dev_to_shost(&starget->dev);
	struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
	struct MPT2SAS_TARGET *sas_target_priv_data;
	struct _sas_device *sas_device;
	struct _raid_device *raid_device;
	unsigned long flags;
	struct sas_rphy *rphy;

	sas_target_priv_data = kzalloc(sizeof(struct scsi_target), GFP_KERNEL);
	if (!sas_target_priv_data)
		return -ENOMEM;

	starget->hostdata = sas_target_priv_data;
	sas_target_priv_data->starget = starget;
	sas_target_priv_data->handle = MPT2SAS_INVALID_DEVICE_HANDLE;

	/* RAID volumes */
	if (starget->channel == RAID_CHANNEL) {
		spin_lock_irqsave(&ioc->raid_device_lock, flags);
		raid_device = _scsih_raid_device_find_by_id(ioc, starget->id,
		    starget->channel);
		if (raid_device) {
			sas_target_priv_data->handle = raid_device->handle;
			sas_target_priv_data->sas_address = raid_device->wwid;
			sas_target_priv_data->flags |= MPT_TARGET_FLAGS_VOLUME;
			raid_device->starget = starget;
		}
		spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
		return 0;
	}

	/* sas/sata devices */
	spin_lock_irqsave(&ioc->sas_device_lock, flags);
	rphy = dev_to_rphy(starget->dev.parent);
	sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
	   rphy->identify.sas_address);

	if (sas_device) {
		sas_target_priv_data->handle = sas_device->handle;
		sas_target_priv_data->sas_address = sas_device->sas_address;
		sas_device->starget = starget;
		sas_device->id = starget->id;
		sas_device->channel = starget->channel;
1255
		if (test_bit(sas_device->handle, ioc->pd_handles))
E
Eric Moore 已提交
1256 1257 1258 1259 1260 1261 1262 1263 1264
			sas_target_priv_data->flags |=
			    MPT_TARGET_FLAGS_RAID_COMPONENT;
	}
	spin_unlock_irqrestore(&ioc->sas_device_lock, flags);

	return 0;
}

/**
1265
 * _scsih_target_destroy - target destroy routine
E
Eric Moore 已提交
1266 1267 1268 1269 1270
 * @starget: scsi target struct
 *
 * Returns nothing.
 */
static void
1271
_scsih_target_destroy(struct scsi_target *starget)
E
Eric Moore 已提交
1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300
{
	struct Scsi_Host *shost = dev_to_shost(&starget->dev);
	struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
	struct MPT2SAS_TARGET *sas_target_priv_data;
	struct _sas_device *sas_device;
	struct _raid_device *raid_device;
	unsigned long flags;
	struct sas_rphy *rphy;

	sas_target_priv_data = starget->hostdata;
	if (!sas_target_priv_data)
		return;

	if (starget->channel == RAID_CHANNEL) {
		spin_lock_irqsave(&ioc->raid_device_lock, flags);
		raid_device = _scsih_raid_device_find_by_id(ioc, starget->id,
		    starget->channel);
		if (raid_device) {
			raid_device->starget = NULL;
			raid_device->sdev = NULL;
		}
		spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
		goto out;
	}

	spin_lock_irqsave(&ioc->sas_device_lock, flags);
	rphy = dev_to_rphy(starget->dev.parent);
	sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
	   rphy->identify.sas_address);
1301 1302 1303
	if (sas_device && (sas_device->starget == starget) &&
	    (sas_device->id == starget->id) &&
	    (sas_device->channel == starget->channel))
E
Eric Moore 已提交
1304 1305 1306 1307 1308 1309 1310 1311 1312 1313
		sas_device->starget = NULL;

	spin_unlock_irqrestore(&ioc->sas_device_lock, flags);

 out:
	kfree(sas_target_priv_data);
	starget->hostdata = NULL;
}

/**
1314
 * _scsih_slave_alloc - device add routine
E
Eric Moore 已提交
1315 1316 1317 1318 1319 1320
 * @sdev: scsi device struct
 *
 * Returns 0 if ok. Any other return is assumed to be an error and
 * the device is ignored.
 */
static int
1321
_scsih_slave_alloc(struct scsi_device *sdev)
E
Eric Moore 已提交
1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 1354 1355 1356 1357 1358 1359 1360
{
	struct Scsi_Host *shost;
	struct MPT2SAS_ADAPTER *ioc;
	struct MPT2SAS_TARGET *sas_target_priv_data;
	struct MPT2SAS_DEVICE *sas_device_priv_data;
	struct scsi_target *starget;
	struct _raid_device *raid_device;
	unsigned long flags;

	sas_device_priv_data = kzalloc(sizeof(struct scsi_device), GFP_KERNEL);
	if (!sas_device_priv_data)
		return -ENOMEM;

	sas_device_priv_data->lun = sdev->lun;
	sas_device_priv_data->flags = MPT_DEVICE_FLAGS_INIT;

	starget = scsi_target(sdev);
	sas_target_priv_data = starget->hostdata;
	sas_target_priv_data->num_luns++;
	sas_device_priv_data->sas_target = sas_target_priv_data;
	sdev->hostdata = sas_device_priv_data;
	if ((sas_target_priv_data->flags & MPT_TARGET_FLAGS_RAID_COMPONENT))
		sdev->no_uld_attach = 1;

	shost = dev_to_shost(&starget->dev);
	ioc = shost_priv(shost);
	if (starget->channel == RAID_CHANNEL) {
		spin_lock_irqsave(&ioc->raid_device_lock, flags);
		raid_device = _scsih_raid_device_find_by_id(ioc,
		    starget->id, starget->channel);
		if (raid_device)
			raid_device->sdev = sdev; /* raid is single lun */
		spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
	}

	return 0;
}

/**
1361
 * _scsih_slave_destroy - device destroy routine
E
Eric Moore 已提交
1362 1363 1364 1365 1366
 * @sdev: scsi device struct
 *
 * Returns nothing.
 */
static void
1367
_scsih_slave_destroy(struct scsi_device *sdev)
E
Eric Moore 已提交
1368 1369 1370 1371 1372 1373 1374 1375 1376 1377 1378 1379 1380 1381 1382
{
	struct MPT2SAS_TARGET *sas_target_priv_data;
	struct scsi_target *starget;

	if (!sdev->hostdata)
		return;

	starget = scsi_target(sdev);
	sas_target_priv_data = starget->hostdata;
	sas_target_priv_data->num_luns--;
	kfree(sdev->hostdata);
	sdev->hostdata = NULL;
}

/**
1383
 * _scsih_display_sata_capabilities - sata capabilities
E
Eric Moore 已提交
1384 1385 1386 1387 1388
 * @ioc: per adapter object
 * @sas_device: the sas_device object
 * @sdev: scsi device struct
 */
static void
1389
_scsih_display_sata_capabilities(struct MPT2SAS_ADAPTER *ioc,
E
Eric Moore 已提交
1390 1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412 1413
    struct _sas_device *sas_device, struct scsi_device *sdev)
{
	Mpi2ConfigReply_t mpi_reply;
	Mpi2SasDevicePage0_t sas_device_pg0;
	u32 ioc_status;
	u16 flags;
	u32 device_info;

	if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
	    MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, sas_device->handle))) {
		printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
		    ioc->name, __FILE__, __LINE__, __func__);
		return;
	}

	ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
	    MPI2_IOCSTATUS_MASK;
	if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
		printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
		    ioc->name, __FILE__, __LINE__, __func__);
		return;
	}

	flags = le16_to_cpu(sas_device_pg0.Flags);
1414
	device_info = le32_to_cpu(sas_device_pg0.DeviceInfo);
E
Eric Moore 已提交
1415 1416 1417 1418 1419 1420 1421 1422 1423 1424 1425 1426 1427

	sdev_printk(KERN_INFO, sdev,
	    "atapi(%s), ncq(%s), asyn_notify(%s), smart(%s), fua(%s), "
	    "sw_preserve(%s)\n",
	    (device_info & MPI2_SAS_DEVICE_INFO_ATAPI_DEVICE) ? "y" : "n",
	    (flags & MPI2_SAS_DEVICE0_FLAGS_SATA_NCQ_SUPPORTED) ? "y" : "n",
	    (flags & MPI2_SAS_DEVICE0_FLAGS_SATA_ASYNCHRONOUS_NOTIFY) ? "y" :
	    "n",
	    (flags & MPI2_SAS_DEVICE0_FLAGS_SATA_SMART_SUPPORTED) ? "y" : "n",
	    (flags & MPI2_SAS_DEVICE0_FLAGS_SATA_FUA_SUPPORTED) ? "y" : "n",
	    (flags & MPI2_SAS_DEVICE0_FLAGS_SATA_SW_PRESERVE) ? "y" : "n");
}

1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468 1469 1470 1471 1472 1473 1474 1475 1476 1477 1478 1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 1500 1501 1502 1503 1504 1505 1506 1507 1508 1509 1510 1511 1512 1513 1514 1515 1516 1517 1518 1519 1520 1521 1522 1523 1524 1525 1526 1527 1528 1529 1530 1531 1532 1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 1543 1544 1545 1546 1547 1548 1549 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 1560 1561
/**
 * _scsih_is_raid - return boolean indicating device is raid volume
 * @dev the device struct object
 */
static int
_scsih_is_raid(struct device *dev)
{
	struct scsi_device *sdev = to_scsi_device(dev);

	return (sdev->channel == RAID_CHANNEL) ? 1 : 0;
}

/**
 * _scsih_get_resync - get raid volume resync percent complete
 * @dev the device struct object
 */
static void
_scsih_get_resync(struct device *dev)
{
	struct scsi_device *sdev = to_scsi_device(dev);
	struct MPT2SAS_ADAPTER *ioc = shost_priv(sdev->host);
	static struct _raid_device *raid_device;
	unsigned long flags;
	Mpi2RaidVolPage0_t vol_pg0;
	Mpi2ConfigReply_t mpi_reply;
	u32 volume_status_flags;
	u8 percent_complete = 0;

	spin_lock_irqsave(&ioc->raid_device_lock, flags);
	raid_device = _scsih_raid_device_find_by_id(ioc, sdev->id,
	    sdev->channel);
	spin_unlock_irqrestore(&ioc->raid_device_lock, flags);

	if (!raid_device)
		goto out;

	if (mpt2sas_config_get_raid_volume_pg0(ioc, &mpi_reply, &vol_pg0,
	     MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, raid_device->handle,
	     sizeof(Mpi2RaidVolPage0_t))) {
		printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
		    ioc->name, __FILE__, __LINE__, __func__);
		goto out;
	}

	volume_status_flags = le32_to_cpu(vol_pg0.VolumeStatusFlags);
	if (volume_status_flags & MPI2_RAIDVOL0_STATUS_FLAG_RESYNC_IN_PROGRESS)
		percent_complete = raid_device->percent_complete;
 out:
	raid_set_resync(mpt2sas_raid_template, dev, percent_complete);
}

/**
 * _scsih_get_state - get raid volume level
 * @dev the device struct object
 */
static void
_scsih_get_state(struct device *dev)
{
	struct scsi_device *sdev = to_scsi_device(dev);
	struct MPT2SAS_ADAPTER *ioc = shost_priv(sdev->host);
	static struct _raid_device *raid_device;
	unsigned long flags;
	Mpi2RaidVolPage0_t vol_pg0;
	Mpi2ConfigReply_t mpi_reply;
	u32 volstate;
	enum raid_state state = RAID_STATE_UNKNOWN;

	spin_lock_irqsave(&ioc->raid_device_lock, flags);
	raid_device = _scsih_raid_device_find_by_id(ioc, sdev->id,
	    sdev->channel);
	spin_unlock_irqrestore(&ioc->raid_device_lock, flags);

	if (!raid_device)
		goto out;

	if (mpt2sas_config_get_raid_volume_pg0(ioc, &mpi_reply, &vol_pg0,
	     MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, raid_device->handle,
	     sizeof(Mpi2RaidVolPage0_t))) {
		printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
		    ioc->name, __FILE__, __LINE__, __func__);
		goto out;
	}

	volstate = le32_to_cpu(vol_pg0.VolumeStatusFlags);
	if (volstate & MPI2_RAIDVOL0_STATUS_FLAG_RESYNC_IN_PROGRESS) {
		state = RAID_STATE_RESYNCING;
		goto out;
	}

	switch (vol_pg0.VolumeState) {
	case MPI2_RAID_VOL_STATE_OPTIMAL:
	case MPI2_RAID_VOL_STATE_ONLINE:
		state = RAID_STATE_ACTIVE;
		break;
	case  MPI2_RAID_VOL_STATE_DEGRADED:
		state = RAID_STATE_DEGRADED;
		break;
	case MPI2_RAID_VOL_STATE_FAILED:
	case MPI2_RAID_VOL_STATE_MISSING:
		state = RAID_STATE_OFFLINE;
		break;
	}
 out:
	raid_set_state(mpt2sas_raid_template, dev, state);
}

/**
 * _scsih_set_level - set raid level
 * @sdev: scsi device struct
 * @raid_device: raid_device object
 */
static void
_scsih_set_level(struct scsi_device *sdev, struct _raid_device *raid_device)
{
	enum raid_level level = RAID_LEVEL_UNKNOWN;

	switch (raid_device->volume_type) {
	case MPI2_RAID_VOL_TYPE_RAID0:
		level = RAID_LEVEL_0;
		break;
	case MPI2_RAID_VOL_TYPE_RAID10:
		level = RAID_LEVEL_10;
		break;
	case MPI2_RAID_VOL_TYPE_RAID1E:
		level = RAID_LEVEL_1E;
		break;
	case MPI2_RAID_VOL_TYPE_RAID1:
		level = RAID_LEVEL_1;
		break;
	}

	raid_set_level(mpt2sas_raid_template, &sdev->sdev_gendev, level);
}

E
Eric Moore 已提交
1562 1563 1564 1565 1566 1567 1568 1569 1570 1571 1572 1573 1574 1575 1576 1577 1578 1579 1580 1581 1582 1583 1584 1585 1586 1587 1588 1589 1590 1591 1592 1593 1594 1595 1596 1597 1598 1599 1600 1601 1602 1603 1604 1605 1606 1607 1608 1609 1610 1611 1612 1613 1614 1615 1616 1617 1618 1619 1620 1621
/**
 * _scsih_get_volume_capabilities - volume capabilities
 * @ioc: per adapter object
 * @sas_device: the raid_device object
 */
static void
_scsih_get_volume_capabilities(struct MPT2SAS_ADAPTER *ioc,
    struct _raid_device *raid_device)
{
	Mpi2RaidVolPage0_t *vol_pg0;
	Mpi2RaidPhysDiskPage0_t pd_pg0;
	Mpi2SasDevicePage0_t sas_device_pg0;
	Mpi2ConfigReply_t mpi_reply;
	u16 sz;
	u8 num_pds;

	if ((mpt2sas_config_get_number_pds(ioc, raid_device->handle,
	    &num_pds)) || !num_pds) {
		printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
		    ioc->name, __FILE__, __LINE__, __func__);
		return;
	}

	raid_device->num_pds = num_pds;
	sz = offsetof(Mpi2RaidVolPage0_t, PhysDisk) + (num_pds *
	    sizeof(Mpi2RaidVol0PhysDisk_t));
	vol_pg0 = kzalloc(sz, GFP_KERNEL);
	if (!vol_pg0) {
		printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
		    ioc->name, __FILE__, __LINE__, __func__);
		return;
	}

	if ((mpt2sas_config_get_raid_volume_pg0(ioc, &mpi_reply, vol_pg0,
	     MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, raid_device->handle, sz))) {
		printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
		    ioc->name, __FILE__, __LINE__, __func__);
		kfree(vol_pg0);
		return;
	}

	raid_device->volume_type = vol_pg0->VolumeType;

	/* figure out what the underlying devices are by
	 * obtaining the device_info bits for the 1st device
	 */
	if (!(mpt2sas_config_get_phys_disk_pg0(ioc, &mpi_reply,
	    &pd_pg0, MPI2_PHYSDISK_PGAD_FORM_PHYSDISKNUM,
	    vol_pg0->PhysDisk[0].PhysDiskNum))) {
		if (!(mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply,
		    &sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_HANDLE,
		    le16_to_cpu(pd_pg0.DevHandle)))) {
			raid_device->device_info =
			    le32_to_cpu(sas_device_pg0.DeviceInfo);
		}
	}

	kfree(vol_pg0);
}

1622 1623 1624 1625 1626 1627 1628 1629 1630 1631 1632 1633 1634 1635 1636 1637 1638 1639 1640 1641 1642 1643 1644 1645 1646 1647
/**
 * _scsih_enable_tlr - setting TLR flags
 * @ioc: per adapter object
 * @sdev: scsi device struct
 *
 * Enabling Transaction Layer Retries for tape devices when
 * vpd page 0x90 is present
 *
 */
static void
_scsih_enable_tlr(struct MPT2SAS_ADAPTER *ioc, struct scsi_device *sdev)
{
	/* only for TAPE */
	if (sdev->type != TYPE_TAPE)
		return;

	if (!(ioc->facts.IOCCapabilities & MPI2_IOCFACTS_CAPABILITY_TLR))
		return;

	sas_enable_tlr(sdev);
	sdev_printk(KERN_INFO, sdev, "TLR %s\n",
	    sas_is_tlr_enabled(sdev) ? "Enabled" : "Disabled");
	return;

}

E
Eric Moore 已提交
1648
/**
1649
 * _scsih_slave_configure - device configure routine.
E
Eric Moore 已提交
1650 1651 1652 1653 1654 1655
 * @sdev: scsi device struct
 *
 * Returns 0 if ok. Any other return is assumed to be an error and
 * the device is ignored.
 */
static int
1656
_scsih_slave_configure(struct scsi_device *sdev)
E
Eric Moore 已提交
1657 1658 1659 1660 1661 1662 1663 1664 1665 1666 1667 1668 1669 1670 1671 1672 1673 1674 1675 1676 1677 1678 1679 1680 1681 1682 1683 1684 1685 1686 1687 1688 1689 1690 1691 1692 1693 1694 1695 1696 1697 1698 1699 1700 1701 1702 1703 1704 1705 1706 1707 1708 1709 1710 1711 1712 1713 1714
{
	struct Scsi_Host *shost = sdev->host;
	struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
	struct MPT2SAS_DEVICE *sas_device_priv_data;
	struct MPT2SAS_TARGET *sas_target_priv_data;
	struct _sas_device *sas_device;
	struct _raid_device *raid_device;
	unsigned long flags;
	int qdepth;
	u8 ssp_target = 0;
	char *ds = "";
	char *r_level = "";

	qdepth = 1;
	sas_device_priv_data = sdev->hostdata;
	sas_device_priv_data->configured_lun = 1;
	sas_device_priv_data->flags &= ~MPT_DEVICE_FLAGS_INIT;
	sas_target_priv_data = sas_device_priv_data->sas_target;

	/* raid volume handling */
	if (sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME) {

		spin_lock_irqsave(&ioc->raid_device_lock, flags);
		raid_device = _scsih_raid_device_find_by_handle(ioc,
		     sas_target_priv_data->handle);
		spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
		if (!raid_device) {
			printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
			    ioc->name, __FILE__, __LINE__, __func__);
			return 0;
		}

		_scsih_get_volume_capabilities(ioc, raid_device);

		/* RAID Queue Depth Support
		 * IS volume = underlying qdepth of drive type, either
		 *    MPT2SAS_SAS_QUEUE_DEPTH or MPT2SAS_SATA_QUEUE_DEPTH
		 * IM/IME/R10 = 128 (MPT2SAS_RAID_QUEUE_DEPTH)
		 */
		if (raid_device->device_info &
		    MPI2_SAS_DEVICE_INFO_SSP_TARGET) {
			qdepth = MPT2SAS_SAS_QUEUE_DEPTH;
			ds = "SSP";
		} else {
			qdepth = MPT2SAS_SATA_QUEUE_DEPTH;
			 if (raid_device->device_info &
			    MPI2_SAS_DEVICE_INFO_SATA_DEVICE)
				ds = "SATA";
			else
				ds = "STP";
		}

		switch (raid_device->volume_type) {
		case MPI2_RAID_VOL_TYPE_RAID0:
			r_level = "RAID0";
			break;
		case MPI2_RAID_VOL_TYPE_RAID1E:
			qdepth = MPT2SAS_RAID_QUEUE_DEPTH;
1715 1716 1717 1718 1719 1720 1721
			if (ioc->manu_pg10.OEMIdentifier &&
			    (ioc->manu_pg10.GenericFlags0 &
			    MFG10_GF0_R10_DISPLAY) &&
			    !(raid_device->num_pds % 2))
				r_level = "RAID10";
			else
				r_level = "RAID1E";
E
Eric Moore 已提交
1722 1723 1724 1725 1726 1727 1728 1729 1730 1731 1732 1733 1734 1735 1736 1737 1738 1739 1740 1741 1742
			break;
		case MPI2_RAID_VOL_TYPE_RAID1:
			qdepth = MPT2SAS_RAID_QUEUE_DEPTH;
			r_level = "RAID1";
			break;
		case MPI2_RAID_VOL_TYPE_RAID10:
			qdepth = MPT2SAS_RAID_QUEUE_DEPTH;
			r_level = "RAID10";
			break;
		case MPI2_RAID_VOL_TYPE_UNKNOWN:
		default:
			qdepth = MPT2SAS_RAID_QUEUE_DEPTH;
			r_level = "RAIDX";
			break;
		}

		sdev_printk(KERN_INFO, sdev, "%s: "
		    "handle(0x%04x), wwid(0x%016llx), pd_count(%d), type(%s)\n",
		    r_level, raid_device->handle,
		    (unsigned long long)raid_device->wwid,
		    raid_device->num_pds, ds);
1743
		_scsih_change_queue_depth(sdev, qdepth, SCSI_QDEPTH_DEFAULT);
1744 1745
		/* raid transport support */
		_scsih_set_level(sdev, raid_device);
E
Eric Moore 已提交
1746 1747 1748 1749 1750 1751 1752 1753 1754 1755 1756 1757 1758 1759 1760 1761 1762 1763 1764 1765 1766 1767 1768 1769 1770 1771 1772 1773 1774 1775 1776 1777
		return 0;
	}

	/* non-raid handling */
	spin_lock_irqsave(&ioc->sas_device_lock, flags);
	sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
	   sas_device_priv_data->sas_target->sas_address);
	spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
	if (sas_device) {
		if (sas_target_priv_data->flags &
		    MPT_TARGET_FLAGS_RAID_COMPONENT) {
			mpt2sas_config_get_volume_handle(ioc,
			    sas_device->handle, &sas_device->volume_handle);
			mpt2sas_config_get_volume_wwid(ioc,
			    sas_device->volume_handle,
			    &sas_device->volume_wwid);
		}
		if (sas_device->device_info & MPI2_SAS_DEVICE_INFO_SSP_TARGET) {
			qdepth = MPT2SAS_SAS_QUEUE_DEPTH;
			ssp_target = 1;
			ds = "SSP";
		} else {
			qdepth = MPT2SAS_SATA_QUEUE_DEPTH;
			if (sas_device->device_info &
			    MPI2_SAS_DEVICE_INFO_STP_TARGET)
				ds = "STP";
			else if (sas_device->device_info &
			    MPI2_SAS_DEVICE_INFO_SATA_DEVICE)
				ds = "SATA";
		}

		sdev_printk(KERN_INFO, sdev, "%s: handle(0x%04x), "
1778
		    "sas_addr(0x%016llx), phy(%d), device_name(0x%016llx)\n",
E
Eric Moore 已提交
1779 1780
		    ds, sas_device->handle,
		    (unsigned long long)sas_device->sas_address,
1781
		    sas_device->phy,
E
Eric Moore 已提交
1782 1783 1784 1785 1786 1787 1788
		    (unsigned long long)sas_device->device_name);
		sdev_printk(KERN_INFO, sdev, "%s: "
		    "enclosure_logical_id(0x%016llx), slot(%d)\n", ds,
		    (unsigned long long) sas_device->enclosure_logical_id,
		    sas_device->slot);

		if (!ssp_target)
1789
			_scsih_display_sata_capabilities(ioc, sas_device, sdev);
E
Eric Moore 已提交
1790 1791
	}

1792
	_scsih_change_queue_depth(sdev, qdepth, SCSI_QDEPTH_DEFAULT);
E
Eric Moore 已提交
1793

1794
	if (ssp_target) {
E
Eric Moore 已提交
1795
		sas_read_port_mode_page(sdev);
1796 1797
		_scsih_enable_tlr(ioc, sdev);
	}
E
Eric Moore 已提交
1798 1799 1800 1801
	return 0;
}

/**
1802
 * _scsih_bios_param - fetch head, sector, cylinder info for a disk
E
Eric Moore 已提交
1803 1804 1805 1806 1807 1808 1809 1810 1811 1812 1813
 * @sdev: scsi device struct
 * @bdev: pointer to block device context
 * @capacity: device size (in 512 byte sectors)
 * @params: three element array to place output:
 *              params[0] number of heads (max 255)
 *              params[1] number of sectors (max 63)
 *              params[2] number of cylinders
 *
 * Return nothing.
 */
static int
1814
_scsih_bios_param(struct scsi_device *sdev, struct block_device *bdev,
E
Eric Moore 已提交
1815 1816 1817 1818 1819 1820 1821 1822 1823 1824 1825 1826 1827 1828 1829 1830 1831 1832 1833 1834 1835 1836 1837 1838 1839 1840 1841 1842 1843 1844 1845 1846 1847 1848 1849 1850 1851 1852 1853 1854 1855 1856 1857 1858 1859 1860 1861 1862 1863 1864 1865 1866 1867 1868 1869 1870 1871 1872 1873 1874 1875 1876 1877 1878 1879 1880 1881 1882 1883 1884 1885 1886 1887 1888 1889 1890 1891 1892 1893 1894
    sector_t capacity, int params[])
{
	int		heads;
	int		sectors;
	sector_t	cylinders;
	ulong 		dummy;

	heads = 64;
	sectors = 32;

	dummy = heads * sectors;
	cylinders = capacity;
	sector_div(cylinders, dummy);

	/*
	 * Handle extended translation size for logical drives
	 * > 1Gb
	 */
	if ((ulong)capacity >= 0x200000) {
		heads = 255;
		sectors = 63;
		dummy = heads * sectors;
		cylinders = capacity;
		sector_div(cylinders, dummy);
	}

	/* return result */
	params[0] = heads;
	params[1] = sectors;
	params[2] = cylinders;

	return 0;
}

/**
 * _scsih_response_code - translation of device response code
 * @ioc: per adapter object
 * @response_code: response code returned by the device
 *
 * Return nothing.
 */
static void
_scsih_response_code(struct MPT2SAS_ADAPTER *ioc, u8 response_code)
{
	char *desc;

	switch (response_code) {
	case MPI2_SCSITASKMGMT_RSP_TM_COMPLETE:
		desc = "task management request completed";
		break;
	case MPI2_SCSITASKMGMT_RSP_INVALID_FRAME:
		desc = "invalid frame";
		break;
	case MPI2_SCSITASKMGMT_RSP_TM_NOT_SUPPORTED:
		desc = "task management request not supported";
		break;
	case MPI2_SCSITASKMGMT_RSP_TM_FAILED:
		desc = "task management request failed";
		break;
	case MPI2_SCSITASKMGMT_RSP_TM_SUCCEEDED:
		desc = "task management request succeeded";
		break;
	case MPI2_SCSITASKMGMT_RSP_TM_INVALID_LUN:
		desc = "invalid lun";
		break;
	case 0xA:
		desc = "overlapped tag attempted";
		break;
	case MPI2_SCSITASKMGMT_RSP_IO_QUEUED_ON_IOC:
		desc = "task queued, however not sent to target";
		break;
	default:
		desc = "unknown";
		break;
	}
	printk(MPT2SAS_WARN_FMT "response_code(0x%01x): %s\n",
		ioc->name, response_code, desc);
}

/**
1895
 * _scsih_tm_done - tm completion routine
E
Eric Moore 已提交
1896 1897
 * @ioc: per adapter object
 * @smid: system request message index
1898
 * @msix_index: MSIX table index supplied by the OS
E
Eric Moore 已提交
1899 1900 1901 1902 1903
 * @reply: reply message frame(lower 32bit addr)
 * Context: none.
 *
 * The callback handler when using scsih_issue_tm.
 *
1904 1905
 * Return 1 meaning mf should be freed from _base_interrupt
 *        0 means the mf is freed from this function.
E
Eric Moore 已提交
1906
 */
1907
static u8
1908
_scsih_tm_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 msix_index, u32 reply)
E
Eric Moore 已提交
1909 1910 1911 1912
{
	MPI2DefaultReply_t *mpi_reply;

	if (ioc->tm_cmds.status == MPT2_CMD_NOT_USED)
1913
		return 1;
E
Eric Moore 已提交
1914
	if (ioc->tm_cmds.smid != smid)
1915
		return 1;
E
Eric Moore 已提交
1916 1917 1918 1919 1920 1921 1922 1923
	ioc->tm_cmds.status |= MPT2_CMD_COMPLETE;
	mpi_reply =  mpt2sas_base_get_reply_virt_addr(ioc, reply);
	if (mpi_reply) {
		memcpy(ioc->tm_cmds.reply, mpi_reply, mpi_reply->MsgLength*4);
		ioc->tm_cmds.status |= MPT2_CMD_REPLY_VALID;
	}
	ioc->tm_cmds.status &= ~MPT2_CMD_PENDING;
	complete(&ioc->tm_cmds.done);
1924
	return 1;
E
Eric Moore 已提交
1925 1926 1927 1928 1929 1930 1931 1932 1933 1934 1935 1936 1937 1938 1939 1940 1941 1942 1943 1944 1945 1946 1947 1948 1949 1950 1951 1952 1953 1954 1955 1956 1957 1958 1959 1960 1961 1962 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982
}

/**
 * mpt2sas_scsih_set_tm_flag - set per target tm_busy
 * @ioc: per adapter object
 * @handle: device handle
 *
 * During taskmangement request, we need to freeze the device queue.
 */
void
mpt2sas_scsih_set_tm_flag(struct MPT2SAS_ADAPTER *ioc, u16 handle)
{
	struct MPT2SAS_DEVICE *sas_device_priv_data;
	struct scsi_device *sdev;
	u8 skip = 0;

	shost_for_each_device(sdev, ioc->shost) {
		if (skip)
			continue;
		sas_device_priv_data = sdev->hostdata;
		if (!sas_device_priv_data)
			continue;
		if (sas_device_priv_data->sas_target->handle == handle) {
			sas_device_priv_data->sas_target->tm_busy = 1;
			skip = 1;
			ioc->ignore_loginfos = 1;
		}
	}
}

/**
 * mpt2sas_scsih_clear_tm_flag - clear per target tm_busy
 * @ioc: per adapter object
 * @handle: device handle
 *
 * During taskmangement request, we need to freeze the device queue.
 */
void
mpt2sas_scsih_clear_tm_flag(struct MPT2SAS_ADAPTER *ioc, u16 handle)
{
	struct MPT2SAS_DEVICE *sas_device_priv_data;
	struct scsi_device *sdev;
	u8 skip = 0;

	shost_for_each_device(sdev, ioc->shost) {
		if (skip)
			continue;
		sas_device_priv_data = sdev->hostdata;
		if (!sas_device_priv_data)
			continue;
		if (sas_device_priv_data->sas_target->handle == handle) {
			sas_device_priv_data->sas_target->tm_busy = 0;
			skip = 1;
			ioc->ignore_loginfos = 0;
		}
	}
}

1983

E
Eric Moore 已提交
1984 1985 1986 1987
/**
 * mpt2sas_scsih_issue_tm - main routine for sending tm requests
 * @ioc: per adapter struct
 * @device_handle: device handle
1988 1989
 * @channel: the channel assigned by the OS
 * @id: the id assigned by the OS
E
Eric Moore 已提交
1990 1991 1992 1993
 * @lun: lun number
 * @type: MPI2_SCSITASKMGMT_TASKTYPE__XXX (defined in mpi2_init.h)
 * @smid_task: smid assigned to the task
 * @timeout: timeout in seconds
1994
 * Context: user
E
Eric Moore 已提交
1995 1996 1997 1998 1999
 *
 * A generic API for sending task management requests to firmware.
 *
 * The callback index is set inside `ioc->tm_cb_idx`.
 *
2000
 * Return SUCCESS or FAILED.
E
Eric Moore 已提交
2001
 */
2002 2003 2004 2005
int
mpt2sas_scsih_issue_tm(struct MPT2SAS_ADAPTER *ioc, u16 handle, uint channel,
    uint id, uint lun, u8 type, u16 smid_task, ulong timeout,
    struct scsi_cmnd *scmd)
E
Eric Moore 已提交
2006 2007 2008 2009 2010 2011
{
	Mpi2SCSITaskManagementRequest_t *mpi_request;
	Mpi2SCSITaskManagementReply_t *mpi_reply;
	u16 smid = 0;
	u32 ioc_state;
	unsigned long timeleft;
2012 2013
	struct scsi_cmnd *scmd_lookup;
	int rc;
E
Eric Moore 已提交
2014

2015
	mutex_lock(&ioc->tm_cmds.mutex);
2016 2017 2018
	if (ioc->tm_cmds.status != MPT2_CMD_NOT_USED) {
		printk(MPT2SAS_INFO_FMT "%s: tm_cmd busy!!!\n",
		    __func__, ioc->name);
2019 2020
		rc = FAILED;
		goto err_out;
2021 2022
	}

2023 2024
	if (ioc->shost_recovery || ioc->remove_host ||
	    ioc->pci_error_recovery) {
E
Eric Moore 已提交
2025 2026
		printk(MPT2SAS_INFO_FMT "%s: host reset in progress!\n",
		    __func__, ioc->name);
2027 2028
		rc = FAILED;
		goto err_out;
E
Eric Moore 已提交
2029 2030 2031 2032
	}

	ioc_state = mpt2sas_base_get_iocstate(ioc, 0);
	if (ioc_state & MPI2_DOORBELL_USED) {
2033
		dhsprintk(ioc, printk(MPT2SAS_INFO_FMT "unexpected doorbell "
E
Eric Moore 已提交
2034
		    "active!\n", ioc->name));
2035 2036 2037 2038
		mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP,
		    FORCE_BIG_HAMMER);
		rc = SUCCESS;
		goto err_out;
E
Eric Moore 已提交
2039 2040 2041 2042 2043
	}

	if ((ioc_state & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_FAULT) {
		mpt2sas_base_fault_info(ioc, ioc_state &
		    MPI2_DOORBELL_DATA_MASK);
2044 2045 2046 2047
		mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP,
		    FORCE_BIG_HAMMER);
		rc = SUCCESS;
		goto err_out;
E
Eric Moore 已提交
2048 2049
	}

2050
	smid = mpt2sas_base_get_smid_hpr(ioc, ioc->tm_cb_idx);
E
Eric Moore 已提交
2051 2052 2053
	if (!smid) {
		printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
		    ioc->name, __func__);
2054 2055
		rc = FAILED;
		goto err_out;
E
Eric Moore 已提交
2056 2057 2058
	}

	dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "sending tm: handle(0x%04x),"
2059 2060
	    " task_type(0x%02x), smid(%d)\n", ioc->name, handle, type,
	    smid_task));
E
Eric Moore 已提交
2061 2062 2063 2064 2065 2066 2067 2068 2069 2070
	ioc->tm_cmds.status = MPT2_CMD_PENDING;
	mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
	ioc->tm_cmds.smid = smid;
	memset(mpi_request, 0, sizeof(Mpi2SCSITaskManagementRequest_t));
	mpi_request->Function = MPI2_FUNCTION_SCSI_TASK_MGMT;
	mpi_request->DevHandle = cpu_to_le16(handle);
	mpi_request->TaskType = type;
	mpi_request->TaskMID = cpu_to_le16(smid_task);
	int_to_scsilun(lun, (struct scsi_lun *)mpi_request->LUN);
	mpt2sas_scsih_set_tm_flag(ioc, handle);
2071
	init_completion(&ioc->tm_cmds.done);
2072
	mpt2sas_base_put_smid_hi_priority(ioc, smid);
E
Eric Moore 已提交
2073 2074 2075 2076 2077 2078
	timeleft = wait_for_completion_timeout(&ioc->tm_cmds.done, timeout*HZ);
	if (!(ioc->tm_cmds.status & MPT2_CMD_COMPLETE)) {
		printk(MPT2SAS_ERR_FMT "%s: timeout\n",
		    ioc->name, __func__);
		_debug_dump_mf(mpi_request,
		    sizeof(Mpi2SCSITaskManagementRequest_t)/4);
2079 2080 2081 2082 2083 2084 2085 2086
		if (!(ioc->tm_cmds.status & MPT2_CMD_RESET)) {
			mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP,
			    FORCE_BIG_HAMMER);
			rc = SUCCESS;
			ioc->tm_cmds.status = MPT2_CMD_NOT_USED;
			mpt2sas_scsih_clear_tm_flag(ioc, handle);
			goto err_out;
		}
E
Eric Moore 已提交
2087 2088 2089 2090 2091 2092 2093 2094 2095
	}

	if (ioc->tm_cmds.status & MPT2_CMD_REPLY_VALID) {
		mpi_reply = ioc->tm_cmds.reply;
		dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "complete tm: "
		    "ioc_status(0x%04x), loginfo(0x%08x), term_count(0x%08x)\n",
		    ioc->name, le16_to_cpu(mpi_reply->IOCStatus),
		    le32_to_cpu(mpi_reply->IOCLogInfo),
		    le32_to_cpu(mpi_reply->TerminationCount)));
2096
		if (ioc->logging_level & MPT_DEBUG_TM) {
E
Eric Moore 已提交
2097
			_scsih_response_code(ioc, mpi_reply->ResponseCode);
2098 2099 2100 2101
			if (mpi_reply->IOCStatus)
				_debug_dump_mf(mpi_request,
				    sizeof(Mpi2SCSITaskManagementRequest_t)/4);
		}
E
Eric Moore 已提交
2102
	}
2103 2104 2105 2106 2107 2108 2109 2110 2111 2112 2113 2114 2115 2116 2117 2118 2119 2120 2121 2122 2123 2124 2125 2126 2127 2128 2129 2130 2131 2132 2133 2134 2135 2136 2137 2138 2139 2140 2141 2142 2143 2144 2145 2146

	/* sanity check:
	 * Check to see the commands were terminated.
	 * This is only needed for eh callbacks, hence the scmd check.
	 */
	rc = FAILED;
	if (scmd == NULL)
		goto bypass_sanity_checks;
	switch (type) {
	case MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK:
		scmd_lookup = _scsih_scsi_lookup_get(ioc, smid_task);
		if (scmd_lookup && (scmd_lookup->serial_number ==
		    scmd->serial_number))
			rc = FAILED;
		else
			rc = SUCCESS;
		break;

	case MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET:
		if (_scsih_scsi_lookup_find_by_target(ioc, id, channel))
			rc = FAILED;
		else
			rc = SUCCESS;
		break;

	case MPI2_SCSITASKMGMT_TASKTYPE_LOGICAL_UNIT_RESET:
		if (_scsih_scsi_lookup_find_by_lun(ioc, id, lun, channel))
			rc = FAILED;
		else
			rc = SUCCESS;
		break;
	}

 bypass_sanity_checks:

	mpt2sas_scsih_clear_tm_flag(ioc, handle);
	ioc->tm_cmds.status = MPT2_CMD_NOT_USED;
	mutex_unlock(&ioc->tm_cmds.mutex);

	return rc;

 err_out:
	mutex_unlock(&ioc->tm_cmds.mutex);
	return rc;
E
Eric Moore 已提交
2147 2148
}

2149 2150 2151 2152 2153 2154 2155 2156 2157 2158 2159 2160 2161 2162 2163 2164 2165 2166 2167 2168 2169 2170 2171 2172 2173 2174 2175 2176 2177 2178 2179 2180 2181 2182 2183 2184 2185 2186 2187 2188 2189 2190 2191 2192 2193 2194 2195 2196 2197 2198 2199
/**
 * _scsih_tm_display_info - displays info about the device
 * @ioc: per adapter struct
 * @scmd: pointer to scsi command object
 *
 * Called by task management callback handlers.
 */
static void
_scsih_tm_display_info(struct MPT2SAS_ADAPTER *ioc, struct scsi_cmnd *scmd)
{
	struct scsi_target *starget = scmd->device->sdev_target;
	struct MPT2SAS_TARGET *priv_target = starget->hostdata;
	struct _sas_device *sas_device = NULL;
	unsigned long flags;

	if (!priv_target)
		return;

	scsi_print_command(scmd);
	if (priv_target->flags & MPT_TARGET_FLAGS_VOLUME) {
		starget_printk(KERN_INFO, starget, "volume handle(0x%04x), "
		    "volume wwid(0x%016llx)\n",
		    priv_target->handle,
		    (unsigned long long)priv_target->sas_address);
	} else {
		spin_lock_irqsave(&ioc->sas_device_lock, flags);
		sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
		    priv_target->sas_address);
		if (sas_device) {
			if (priv_target->flags &
			    MPT_TARGET_FLAGS_RAID_COMPONENT) {
				starget_printk(KERN_INFO, starget,
				    "volume handle(0x%04x), "
				    "volume wwid(0x%016llx)\n",
				    sas_device->volume_handle,
				   (unsigned long long)sas_device->volume_wwid);
			}
			starget_printk(KERN_INFO, starget,
			    "handle(0x%04x), sas_address(0x%016llx), phy(%d)\n",
			    sas_device->handle,
			    (unsigned long long)sas_device->sas_address,
			    sas_device->phy);
			starget_printk(KERN_INFO, starget,
			    "enclosure_logical_id(0x%016llx), slot(%d)\n",
			   (unsigned long long)sas_device->enclosure_logical_id,
			    sas_device->slot);
		}
		spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
	}
}

E
Eric Moore 已提交
2200
/**
2201
 * _scsih_abort - eh threads main abort routine
2202
 * @scmd: pointer to scsi command object
E
Eric Moore 已提交
2203 2204 2205 2206
 *
 * Returns SUCCESS if command aborted else FAILED
 */
static int
2207
_scsih_abort(struct scsi_cmnd *scmd)
E
Eric Moore 已提交
2208 2209 2210 2211 2212 2213 2214
{
	struct MPT2SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
	struct MPT2SAS_DEVICE *sas_device_priv_data;
	u16 smid;
	u16 handle;
	int r;

2215 2216 2217
	sdev_printk(KERN_INFO, scmd->device, "attempting task abort! "
	    "scmd(%p)\n", scmd);
	_scsih_tm_display_info(ioc, scmd);
E
Eric Moore 已提交
2218 2219 2220

	sas_device_priv_data = scmd->device->hostdata;
	if (!sas_device_priv_data || !sas_device_priv_data->sas_target) {
2221 2222
		sdev_printk(KERN_INFO, scmd->device, "device been deleted! "
		    "scmd(%p)\n", scmd);
E
Eric Moore 已提交
2223 2224 2225 2226 2227 2228 2229 2230 2231 2232 2233 2234 2235 2236 2237 2238 2239 2240 2241 2242 2243 2244 2245
		scmd->result = DID_NO_CONNECT << 16;
		scmd->scsi_done(scmd);
		r = SUCCESS;
		goto out;
	}

	/* search for the command */
	smid = _scsih_scsi_lookup_find_by_scmd(ioc, scmd);
	if (!smid) {
		scmd->result = DID_RESET << 16;
		r = SUCCESS;
		goto out;
	}

	/* for hidden raid components and volumes this is not supported */
	if (sas_device_priv_data->sas_target->flags &
	    MPT_TARGET_FLAGS_RAID_COMPONENT ||
	    sas_device_priv_data->sas_target->flags & MPT_TARGET_FLAGS_VOLUME) {
		scmd->result = DID_RESET << 16;
		r = FAILED;
		goto out;
	}

2246 2247
	mpt2sas_halt_firmware(ioc);

E
Eric Moore 已提交
2248
	handle = sas_device_priv_data->sas_target->handle;
2249 2250 2251
	r = mpt2sas_scsih_issue_tm(ioc, handle, scmd->device->channel,
	    scmd->device->id, scmd->device->lun,
	    MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK, smid, 30, scmd);
E
Eric Moore 已提交
2252 2253

 out:
2254 2255
	sdev_printk(KERN_INFO, scmd->device, "task abort: %s scmd(%p)\n",
	    ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
E
Eric Moore 已提交
2256 2257 2258 2259
	return r;
}

/**
2260
 * _scsih_dev_reset - eh threads main device reset routine
2261
 * @scmd: pointer to scsi command object
E
Eric Moore 已提交
2262 2263 2264 2265
 *
 * Returns SUCCESS if command aborted else FAILED
 */
static int
2266
_scsih_dev_reset(struct scsi_cmnd *scmd)
E
Eric Moore 已提交
2267 2268 2269 2270 2271 2272 2273 2274
{
	struct MPT2SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
	struct MPT2SAS_DEVICE *sas_device_priv_data;
	struct _sas_device *sas_device;
	unsigned long flags;
	u16	handle;
	int r;

2275 2276 2277 2278 2279
	struct scsi_target *starget = scmd->device->sdev_target;

	starget_printk(KERN_INFO, starget, "attempting target reset! "
	    "scmd(%p)\n", scmd);
	_scsih_tm_display_info(ioc, scmd);
E
Eric Moore 已提交
2280 2281 2282

	sas_device_priv_data = scmd->device->hostdata;
	if (!sas_device_priv_data || !sas_device_priv_data->sas_target) {
2283 2284
		starget_printk(KERN_INFO, starget, "target been deleted! "
		    "scmd(%p)\n", scmd);
E
Eric Moore 已提交
2285 2286 2287 2288 2289 2290 2291 2292 2293 2294 2295 2296 2297 2298 2299 2300 2301 2302 2303 2304 2305 2306 2307 2308 2309
		scmd->result = DID_NO_CONNECT << 16;
		scmd->scsi_done(scmd);
		r = SUCCESS;
		goto out;
	}

	/* for hidden raid components obtain the volume_handle */
	handle = 0;
	if (sas_device_priv_data->sas_target->flags &
	    MPT_TARGET_FLAGS_RAID_COMPONENT) {
		spin_lock_irqsave(&ioc->sas_device_lock, flags);
		sas_device = _scsih_sas_device_find_by_handle(ioc,
		   sas_device_priv_data->sas_target->handle);
		if (sas_device)
			handle = sas_device->volume_handle;
		spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
	} else
		handle = sas_device_priv_data->sas_target->handle;

	if (!handle) {
		scmd->result = DID_RESET << 16;
		r = FAILED;
		goto out;
	}

2310 2311 2312
	r = mpt2sas_scsih_issue_tm(ioc, handle, scmd->device->channel,
	    scmd->device->id, scmd->device->lun,
	    MPI2_SCSITASKMGMT_TASKTYPE_LOGICAL_UNIT_RESET, 0, 30, scmd);
E
Eric Moore 已提交
2313 2314

 out:
2315 2316
	sdev_printk(KERN_INFO, scmd->device, "device reset: %s scmd(%p)\n",
	    ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
E
Eric Moore 已提交
2317 2318 2319 2320
	return r;
}

/**
2321
 * _scsih_target_reset - eh threads main target reset routine
2322
 * @scmd: pointer to scsi command object
E
Eric Moore 已提交
2323 2324 2325 2326
 *
 * Returns SUCCESS if command aborted else FAILED
 */
static int
2327
_scsih_target_reset(struct scsi_cmnd *scmd)
E
Eric Moore 已提交
2328 2329 2330 2331 2332 2333 2334
{
	struct MPT2SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
	struct MPT2SAS_DEVICE *sas_device_priv_data;
	struct _sas_device *sas_device;
	unsigned long flags;
	u16	handle;
	int r;
2335
	struct scsi_target *starget = scmd->device->sdev_target;
E
Eric Moore 已提交
2336

2337 2338 2339
	starget_printk(KERN_INFO, starget, "attempting target reset! "
	    "scmd(%p)\n", scmd);
	_scsih_tm_display_info(ioc, scmd);
E
Eric Moore 已提交
2340 2341 2342

	sas_device_priv_data = scmd->device->hostdata;
	if (!sas_device_priv_data || !sas_device_priv_data->sas_target) {
2343 2344
		starget_printk(KERN_INFO, starget, "target been deleted! "
		    "scmd(%p)\n", scmd);
E
Eric Moore 已提交
2345 2346 2347 2348 2349 2350 2351 2352 2353 2354 2355 2356 2357 2358 2359 2360 2361 2362 2363 2364 2365 2366 2367 2368 2369
		scmd->result = DID_NO_CONNECT << 16;
		scmd->scsi_done(scmd);
		r = SUCCESS;
		goto out;
	}

	/* for hidden raid components obtain the volume_handle */
	handle = 0;
	if (sas_device_priv_data->sas_target->flags &
	    MPT_TARGET_FLAGS_RAID_COMPONENT) {
		spin_lock_irqsave(&ioc->sas_device_lock, flags);
		sas_device = _scsih_sas_device_find_by_handle(ioc,
		   sas_device_priv_data->sas_target->handle);
		if (sas_device)
			handle = sas_device->volume_handle;
		spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
	} else
		handle = sas_device_priv_data->sas_target->handle;

	if (!handle) {
		scmd->result = DID_RESET << 16;
		r = FAILED;
		goto out;
	}

2370 2371 2372
	r = mpt2sas_scsih_issue_tm(ioc, handle, scmd->device->channel,
	    scmd->device->id, 0, MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET, 0,
	    30, scmd);
E
Eric Moore 已提交
2373 2374

 out:
2375 2376
	starget_printk(KERN_INFO, starget, "target reset: %s scmd(%p)\n",
	    ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
E
Eric Moore 已提交
2377 2378 2379 2380
	return r;
}

/**
2381
 * _scsih_host_reset - eh threads main host reset routine
2382
 * @scmd: pointer to scsi command object
E
Eric Moore 已提交
2383 2384 2385 2386
 *
 * Returns SUCCESS if command aborted else FAILED
 */
static int
2387
_scsih_host_reset(struct scsi_cmnd *scmd)
E
Eric Moore 已提交
2388 2389 2390 2391 2392 2393 2394 2395 2396 2397 2398 2399 2400 2401 2402 2403 2404 2405 2406 2407 2408 2409 2410 2411 2412 2413 2414 2415 2416 2417 2418 2419 2420 2421 2422 2423 2424 2425
{
	struct MPT2SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
	int r, retval;

	printk(MPT2SAS_INFO_FMT "attempting host reset! scmd(%p)\n",
	    ioc->name, scmd);
	scsi_print_command(scmd);

	retval = mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP,
	    FORCE_BIG_HAMMER);
	r = (retval < 0) ? FAILED : SUCCESS;
	printk(MPT2SAS_INFO_FMT "host reset: %s scmd(%p)\n",
	    ioc->name, ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);

	return r;
}

/**
 * _scsih_fw_event_add - insert and queue up fw_event
 * @ioc: per adapter object
 * @fw_event: object describing the event
 * Context: This function will acquire ioc->fw_event_lock.
 *
 * This adds the firmware event object into link list, then queues it up to
 * be processed from user context.
 *
 * Return nothing.
 */
static void
_scsih_fw_event_add(struct MPT2SAS_ADAPTER *ioc, struct fw_event_work *fw_event)
{
	unsigned long flags;

	if (ioc->firmware_event_thread == NULL)
		return;

	spin_lock_irqsave(&ioc->fw_event_lock, flags);
	list_add_tail(&fw_event->list, &ioc->fw_event_list);
2426 2427 2428
	INIT_DELAYED_WORK(&fw_event->delayed_work, _firmware_event_work);
	queue_delayed_work(ioc->firmware_event_thread,
	    &fw_event->delayed_work, 0);
E
Eric Moore 已提交
2429 2430 2431 2432 2433 2434 2435 2436 2437 2438 2439 2440 2441 2442 2443 2444 2445 2446 2447 2448 2449 2450 2451 2452 2453 2454
	spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
}

/**
 * _scsih_fw_event_free - delete fw_event
 * @ioc: per adapter object
 * @fw_event: object describing the event
 * Context: This function will acquire ioc->fw_event_lock.
 *
 * This removes firmware event object from link list, frees associated memory.
 *
 * Return nothing.
 */
static void
_scsih_fw_event_free(struct MPT2SAS_ADAPTER *ioc, struct fw_event_work
    *fw_event)
{
	unsigned long flags;

	spin_lock_irqsave(&ioc->fw_event_lock, flags);
	list_del(&fw_event->list);
	kfree(fw_event->event_data);
	kfree(fw_event);
	spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
}

2455

E
Eric Moore 已提交
2456
/**
2457
 * _scsih_queue_rescan - queue a topology rescan from user context
E
Eric Moore 已提交
2458 2459 2460 2461 2462
 * @ioc: per adapter object
 *
 * Return nothing.
 */
static void
2463
_scsih_queue_rescan(struct MPT2SAS_ADAPTER *ioc)
E
Eric Moore 已提交
2464
{
2465
	struct fw_event_work *fw_event;
E
Eric Moore 已提交
2466

2467 2468 2469 2470 2471 2472 2473 2474
	if (ioc->wait_for_port_enable_to_complete)
		return;
	fw_event = kzalloc(sizeof(struct fw_event_work), GFP_ATOMIC);
	if (!fw_event)
		return;
	fw_event->event = MPT2SAS_RESCAN_AFTER_HOST_RESET;
	fw_event->ioc = ioc;
	_scsih_fw_event_add(ioc, fw_event);
E
Eric Moore 已提交
2475 2476 2477
}

/**
2478
 * _scsih_fw_event_cleanup_queue - cleanup event queue
E
Eric Moore 已提交
2479 2480
 * @ioc: per adapter object
 *
2481 2482
 * Walk the firmware event queue, either killing timers, or waiting
 * for outstanding events to complete
E
Eric Moore 已提交
2483 2484 2485 2486
 *
 * Return nothing.
 */
static void
2487
_scsih_fw_event_cleanup_queue(struct MPT2SAS_ADAPTER *ioc)
E
Eric Moore 已提交
2488
{
2489
	struct fw_event_work *fw_event, *next;
E
Eric Moore 已提交
2490

2491 2492 2493
	if (list_empty(&ioc->fw_event_list) ||
	     !ioc->firmware_event_thread || in_interrupt())
		return;
E
Eric Moore 已提交
2494

2495 2496 2497 2498 2499 2500 2501
	list_for_each_entry_safe(fw_event, next, &ioc->fw_event_list, list) {
		if (cancel_delayed_work(&fw_event->delayed_work)) {
			_scsih_fw_event_free(ioc, fw_event);
			continue;
		}
		fw_event->cancel_pending_work = 1;
	}
E
Eric Moore 已提交
2502 2503 2504 2505 2506 2507 2508 2509 2510 2511 2512 2513 2514 2515 2516 2517 2518 2519 2520 2521 2522 2523 2524 2525 2526 2527
}

/**
 * _scsih_ublock_io_device - set the device state to SDEV_RUNNING
 * @ioc: per adapter object
 * @handle: device handle
 *
 * During device pull we need to appropiately set the sdev state.
 */
static void
_scsih_ublock_io_device(struct MPT2SAS_ADAPTER *ioc, u16 handle)
{
	struct MPT2SAS_DEVICE *sas_device_priv_data;
	struct scsi_device *sdev;

	shost_for_each_device(sdev, ioc->shost) {
		sas_device_priv_data = sdev->hostdata;
		if (!sas_device_priv_data)
			continue;
		if (!sas_device_priv_data->block)
			continue;
		if (sas_device_priv_data->sas_target->handle == handle) {
			dewtprintk(ioc, sdev_printk(KERN_INFO, sdev,
			    MPT2SAS_INFO_FMT "SDEV_RUNNING: "
			    "handle(0x%04x)\n", ioc->name, handle));
			sas_device_priv_data->block = 0;
2528
			scsi_internal_device_unblock(sdev);
E
Eric Moore 已提交
2529 2530 2531 2532 2533 2534 2535 2536 2537 2538 2539 2540 2541 2542 2543 2544 2545 2546 2547 2548 2549 2550 2551 2552 2553 2554 2555 2556
		}
	}
}

/**
 * _scsih_block_io_device - set the device state to SDEV_BLOCK
 * @ioc: per adapter object
 * @handle: device handle
 *
 * During device pull we need to appropiately set the sdev state.
 */
static void
_scsih_block_io_device(struct MPT2SAS_ADAPTER *ioc, u16 handle)
{
	struct MPT2SAS_DEVICE *sas_device_priv_data;
	struct scsi_device *sdev;

	shost_for_each_device(sdev, ioc->shost) {
		sas_device_priv_data = sdev->hostdata;
		if (!sas_device_priv_data)
			continue;
		if (sas_device_priv_data->block)
			continue;
		if (sas_device_priv_data->sas_target->handle == handle) {
			dewtprintk(ioc, sdev_printk(KERN_INFO, sdev,
			    MPT2SAS_INFO_FMT "SDEV_BLOCK: "
			    "handle(0x%04x)\n", ioc->name, handle));
			sas_device_priv_data->block = 1;
2557
			scsi_internal_device_block(sdev);
E
Eric Moore 已提交
2558 2559 2560 2561 2562 2563 2564 2565 2566 2567 2568 2569 2570 2571 2572 2573 2574 2575 2576 2577 2578 2579 2580 2581 2582 2583 2584 2585 2586 2587 2588 2589 2590 2591 2592 2593 2594 2595 2596 2597 2598 2599 2600 2601
		}
	}
}

/**
 * _scsih_block_io_to_children_attached_to_ex
 * @ioc: per adapter object
 * @sas_expander: the sas_device object
 *
 * This routine set sdev state to SDEV_BLOCK for all devices
 * attached to this expander. This function called when expander is
 * pulled.
 */
static void
_scsih_block_io_to_children_attached_to_ex(struct MPT2SAS_ADAPTER *ioc,
    struct _sas_node *sas_expander)
{
	struct _sas_port *mpt2sas_port;
	struct _sas_device *sas_device;
	struct _sas_node *expander_sibling;
	unsigned long flags;

	if (!sas_expander)
		return;

	list_for_each_entry(mpt2sas_port,
	   &sas_expander->sas_port_list, port_list) {
		if (mpt2sas_port->remote_identify.device_type ==
		    SAS_END_DEVICE) {
			spin_lock_irqsave(&ioc->sas_device_lock, flags);
			sas_device =
			    mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
			   mpt2sas_port->remote_identify.sas_address);
			spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
			if (!sas_device)
				continue;
			_scsih_block_io_device(ioc, sas_device->handle);
		}
	}

	list_for_each_entry(mpt2sas_port,
	   &sas_expander->sas_port_list, port_list) {

		if (mpt2sas_port->remote_identify.device_type ==
2602
		    SAS_EDGE_EXPANDER_DEVICE ||
E
Eric Moore 已提交
2603
		    mpt2sas_port->remote_identify.device_type ==
2604
		    SAS_FANOUT_EXPANDER_DEVICE) {
E
Eric Moore 已提交
2605 2606 2607 2608 2609 2610 2611 2612 2613 2614 2615 2616 2617 2618 2619 2620 2621 2622 2623 2624 2625 2626 2627 2628 2629 2630 2631 2632 2633 2634 2635 2636 2637 2638 2639 2640 2641 2642 2643 2644 2645

			spin_lock_irqsave(&ioc->sas_node_lock, flags);
			expander_sibling =
			    mpt2sas_scsih_expander_find_by_sas_address(
			    ioc, mpt2sas_port->remote_identify.sas_address);
			spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
			_scsih_block_io_to_children_attached_to_ex(ioc,
			    expander_sibling);
		}
	}
}

/**
 * _scsih_block_io_to_children_attached_directly
 * @ioc: per adapter object
 * @event_data: topology change event data
 *
 * This routine set sdev state to SDEV_BLOCK for all devices
 * direct attached during device pull.
 */
static void
_scsih_block_io_to_children_attached_directly(struct MPT2SAS_ADAPTER *ioc,
    Mpi2EventDataSasTopologyChangeList_t *event_data)
{
	int i;
	u16 handle;
	u16 reason_code;
	u8 phy_number;

	for (i = 0; i < event_data->NumEntries; i++) {
		handle = le16_to_cpu(event_data->PHY[i].AttachedDevHandle);
		if (!handle)
			continue;
		phy_number = event_data->StartPhyNum + i;
		reason_code = event_data->PHY[i].PhyStatus &
		    MPI2_EVENT_SAS_TOPO_RC_MASK;
		if (reason_code == MPI2_EVENT_SAS_TOPO_RC_DELAY_NOT_RESPONDING)
			_scsih_block_io_device(ioc, handle);
	}
}

2646 2647 2648 2649 2650 2651 2652 2653 2654 2655 2656 2657 2658 2659 2660 2661 2662 2663 2664 2665 2666
/**
 * _scsih_tm_tr_send - send task management request
 * @ioc: per adapter object
 * @handle: device handle
 * Context: interrupt time.
 *
 * This code is to initiate the device removal handshake protocal
 * with controller firmware.  This function will issue target reset
 * using high priority request queue.  It will send a sas iounit
 * controll request (MPI2_SAS_OP_REMOVE_DEVICE) from this completion.
 *
 * This is designed to send muliple task management request at the same
 * time to the fifo. If the fifo is full, we will append the request,
 * and process it in a future completion.
 */
static void
_scsih_tm_tr_send(struct MPT2SAS_ADAPTER *ioc, u16 handle)
{
	Mpi2SCSITaskManagementRequest_t *mpi_request;
	u16 smid;
	struct _sas_device *sas_device;
2667
	struct MPT2SAS_TARGET *sas_target_priv_data;
2668 2669 2670
	unsigned long flags;
	struct _tr_list *delayed_tr;

2671 2672
	if (ioc->shost_recovery || ioc->remove_host ||
	    ioc->pci_error_recovery) {
2673 2674
		dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: host reset in "
		   "progress!\n", __func__, ioc->name));
2675 2676 2677
		return;
	}

2678 2679 2680 2681
	/* if PD, then return */
	if (test_bit(handle, ioc->pd_handles))
		return;

2682 2683
	spin_lock_irqsave(&ioc->sas_device_lock, flags);
	sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
2684 2685 2686 2687 2688 2689 2690 2691
	if (sas_device && sas_device->starget &&
	     sas_device->starget->hostdata) {
		sas_target_priv_data = sas_device->starget->hostdata;
		sas_target_priv_data->deleted = 1;
		dewtprintk(ioc, printk(MPT2SAS_INFO_FMT
		    "setting delete flag: handle(0x%04x), "
		    "sas_addr(0x%016llx)\n", ioc->name, handle,
		    (unsigned long long) sas_device->sas_address));
2692 2693
	}
	spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
2694 2695 2696 2697 2698 2699 2700 2701

	smid = mpt2sas_base_get_smid_hpr(ioc, ioc->tm_tr_cb_idx);
	if (!smid) {
		delayed_tr = kzalloc(sizeof(*delayed_tr), GFP_ATOMIC);
		if (!delayed_tr)
			return;
		INIT_LIST_HEAD(&delayed_tr->list);
		delayed_tr->handle = handle;
2702
		list_add_tail(&delayed_tr->list, &ioc->delayed_tr_list);
2703
		dewtprintk(ioc, printk(MPT2SAS_INFO_FMT
2704 2705 2706
		    "DELAYED:tr:handle(0x%04x), (open)\n",
		    ioc->name, handle));
		return;
2707 2708
	}

2709 2710 2711
	dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "tr_send:handle(0x%04x), "
	    "(open), smid(%d), cb(%d)\n", ioc->name, handle, smid,
	    ioc->tm_tr_cb_idx));
2712 2713 2714 2715 2716 2717 2718 2719 2720 2721 2722 2723 2724 2725 2726 2727 2728 2729 2730 2731 2732 2733 2734 2735 2736 2737 2738 2739 2740
	mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
	memset(mpi_request, 0, sizeof(Mpi2SCSITaskManagementRequest_t));
	mpi_request->Function = MPI2_FUNCTION_SCSI_TASK_MGMT;
	mpi_request->DevHandle = cpu_to_le16(handle);
	mpi_request->TaskType = MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET;
	mpt2sas_base_put_smid_hi_priority(ioc, smid);
}



/**
 * _scsih_sas_control_complete - completion routine
 * @ioc: per adapter object
 * @smid: system request message index
 * @msix_index: MSIX table index supplied by the OS
 * @reply: reply message frame(lower 32bit addr)
 * Context: interrupt time.
 *
 * This is the sas iounit controll completion routine.
 * This code is part of the code to initiate the device removal
 * handshake protocal with controller firmware.
 *
 * Return 1 meaning mf should be freed from _base_interrupt
 *        0 means the mf is freed from this function.
 */
static u8
_scsih_sas_control_complete(struct MPT2SAS_ADAPTER *ioc, u16 smid,
    u8 msix_index, u32 reply)
{
2741
#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
2742 2743
	Mpi2SasIoUnitControlReply_t *mpi_reply =
	    mpt2sas_base_get_reply_virt_addr(ioc, reply);
2744
#endif
2745 2746 2747 2748 2749 2750
	dewtprintk(ioc, printk(MPT2SAS_INFO_FMT
	    "sc_complete:handle(0x%04x), (open) "
	    "smid(%d), ioc_status(0x%04x), loginfo(0x%08x)\n",
	    ioc->name, le16_to_cpu(mpi_reply->DevHandle), smid,
	    le16_to_cpu(mpi_reply->IOCStatus),
	    le32_to_cpu(mpi_reply->IOCLogInfo)));
2751 2752 2753
	return 1;
}

2754 2755 2756 2757 2758 2759 2760 2761 2762 2763 2764 2765 2766 2767 2768 2769 2770
/**
 * _scsih_tm_tr_volume_send - send target reset request for volumes
 * @ioc: per adapter object
 * @handle: device handle
 * Context: interrupt time.
 *
 * This is designed to send muliple task management request at the same
 * time to the fifo. If the fifo is full, we will append the request,
 * and process it in a future completion.
 */
static void
_scsih_tm_tr_volume_send(struct MPT2SAS_ADAPTER *ioc, u16 handle)
{
	Mpi2SCSITaskManagementRequest_t *mpi_request;
	u16 smid;
	struct _tr_list *delayed_tr;

2771 2772
	if (ioc->shost_recovery || ioc->remove_host ||
	    ioc->pci_error_recovery) {
2773 2774 2775 2776 2777 2778 2779 2780 2781 2782 2783 2784 2785 2786 2787 2788 2789 2790 2791 2792 2793 2794 2795 2796 2797 2798 2799 2800 2801 2802 2803 2804 2805 2806 2807 2808 2809 2810 2811 2812 2813 2814 2815 2816 2817 2818 2819 2820 2821 2822
		dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: host reset in "
		   "progress!\n", __func__, ioc->name));
		return;
	}

	smid = mpt2sas_base_get_smid_hpr(ioc, ioc->tm_tr_volume_cb_idx);
	if (!smid) {
		delayed_tr = kzalloc(sizeof(*delayed_tr), GFP_ATOMIC);
		if (!delayed_tr)
			return;
		INIT_LIST_HEAD(&delayed_tr->list);
		delayed_tr->handle = handle;
		list_add_tail(&delayed_tr->list, &ioc->delayed_tr_volume_list);
		dewtprintk(ioc, printk(MPT2SAS_INFO_FMT
		    "DELAYED:tr:handle(0x%04x), (open)\n",
		    ioc->name, handle));
		return;
	}

	dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "tr_send:handle(0x%04x), "
	    "(open), smid(%d), cb(%d)\n", ioc->name, handle, smid,
	    ioc->tm_tr_volume_cb_idx));
	mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
	memset(mpi_request, 0, sizeof(Mpi2SCSITaskManagementRequest_t));
	mpi_request->Function = MPI2_FUNCTION_SCSI_TASK_MGMT;
	mpi_request->DevHandle = cpu_to_le16(handle);
	mpi_request->TaskType = MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET;
	mpt2sas_base_put_smid_hi_priority(ioc, smid);
}

/**
 * _scsih_tm_volume_tr_complete - target reset completion
 * @ioc: per adapter object
 * @smid: system request message index
 * @msix_index: MSIX table index supplied by the OS
 * @reply: reply message frame(lower 32bit addr)
 * Context: interrupt time.
 *
 * Return 1 meaning mf should be freed from _base_interrupt
 *        0 means the mf is freed from this function.
 */
static u8
_scsih_tm_volume_tr_complete(struct MPT2SAS_ADAPTER *ioc, u16 smid,
    u8 msix_index, u32 reply)
{
	u16 handle;
	Mpi2SCSITaskManagementRequest_t *mpi_request_tm;
	Mpi2SCSITaskManagementReply_t *mpi_reply =
	    mpt2sas_base_get_reply_virt_addr(ioc, reply);

2823 2824
	if (ioc->shost_recovery || ioc->remove_host ||
	    ioc->pci_error_recovery) {
2825 2826 2827 2828 2829 2830 2831 2832 2833 2834 2835 2836 2837 2838 2839 2840 2841 2842 2843 2844 2845 2846 2847 2848
		dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: host reset in "
		   "progress!\n", __func__, ioc->name));
		return 1;
	}

	mpi_request_tm = mpt2sas_base_get_msg_frame(ioc, smid);
	handle = le16_to_cpu(mpi_request_tm->DevHandle);
	if (handle != le16_to_cpu(mpi_reply->DevHandle)) {
		dewtprintk(ioc, printk("spurious interrupt: "
		    "handle(0x%04x:0x%04x), smid(%d)!!!\n", handle,
		    le16_to_cpu(mpi_reply->DevHandle), smid));
		return 0;
	}

	dewtprintk(ioc, printk(MPT2SAS_INFO_FMT
	    "tr_complete:handle(0x%04x), (open) smid(%d), ioc_status(0x%04x), "
	    "loginfo(0x%08x), completed(%d)\n", ioc->name,
	    handle, smid, le16_to_cpu(mpi_reply->IOCStatus),
	    le32_to_cpu(mpi_reply->IOCLogInfo),
	    le32_to_cpu(mpi_reply->TerminationCount)));

	return _scsih_check_for_pending_tm(ioc, smid);
}

2849 2850 2851 2852 2853 2854 2855 2856 2857 2858 2859 2860 2861 2862 2863 2864 2865 2866 2867 2868 2869
/**
 * _scsih_tm_tr_complete -
 * @ioc: per adapter object
 * @smid: system request message index
 * @msix_index: MSIX table index supplied by the OS
 * @reply: reply message frame(lower 32bit addr)
 * Context: interrupt time.
 *
 * This is the target reset completion routine.
 * This code is part of the code to initiate the device removal
 * handshake protocal with controller firmware.
 * It will send a sas iounit controll request (MPI2_SAS_OP_REMOVE_DEVICE)
 *
 * Return 1 meaning mf should be freed from _base_interrupt
 *        0 means the mf is freed from this function.
 */
static u8
_scsih_tm_tr_complete(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 msix_index,
    u32 reply)
{
	u16 handle;
2870
	Mpi2SCSITaskManagementRequest_t *mpi_request_tm;
2871 2872 2873 2874 2875
	Mpi2SCSITaskManagementReply_t *mpi_reply =
	    mpt2sas_base_get_reply_virt_addr(ioc, reply);
	Mpi2SasIoUnitControlRequest_t *mpi_request;
	u16 smid_sas_ctrl;

2876 2877
	if (ioc->shost_recovery || ioc->remove_host ||
	    ioc->pci_error_recovery) {
2878 2879 2880
		dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: host reset in "
		   "progress!\n", __func__, ioc->name));
		return 1;
2881 2882
	}

2883 2884 2885 2886 2887 2888 2889
	mpi_request_tm = mpt2sas_base_get_msg_frame(ioc, smid);
	handle = le16_to_cpu(mpi_request_tm->DevHandle);
	if (handle != le16_to_cpu(mpi_reply->DevHandle)) {
		dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "spurious interrupt: "
		    "handle(0x%04x:0x%04x), smid(%d)!!!\n", ioc->name, handle,
		    le16_to_cpu(mpi_reply->DevHandle), smid));
		return 0;
2890 2891
	}

2892 2893 2894 2895 2896 2897 2898
	dewtprintk(ioc, printk(MPT2SAS_INFO_FMT
	    "tr_complete:handle(0x%04x), (open) smid(%d), ioc_status(0x%04x), "
	    "loginfo(0x%08x), completed(%d)\n", ioc->name,
	    handle, smid, le16_to_cpu(mpi_reply->IOCStatus),
	    le32_to_cpu(mpi_reply->IOCLogInfo),
	    le32_to_cpu(mpi_reply->TerminationCount)));

2899 2900 2901 2902
	smid_sas_ctrl = mpt2sas_base_get_smid(ioc, ioc->tm_sas_control_cb_idx);
	if (!smid_sas_ctrl) {
		printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
		    ioc->name, __func__);
2903
		return 1;
2904 2905
	}

2906 2907 2908
	dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "sc_send:handle(0x%04x), "
	    "(open), smid(%d), cb(%d)\n", ioc->name, handle, smid_sas_ctrl,
	    ioc->tm_sas_control_cb_idx));
2909 2910 2911 2912
	mpi_request = mpt2sas_base_get_msg_frame(ioc, smid_sas_ctrl);
	memset(mpi_request, 0, sizeof(Mpi2SasIoUnitControlRequest_t));
	mpi_request->Function = MPI2_FUNCTION_SAS_IO_UNIT_CONTROL;
	mpi_request->Operation = MPI2_SAS_OP_REMOVE_DEVICE;
2913
	mpi_request->DevHandle = mpi_request_tm->DevHandle;
2914
	mpt2sas_base_put_smid_default(ioc, smid_sas_ctrl);
2915

2916 2917 2918 2919 2920 2921 2922 2923 2924 2925 2926 2927 2928 2929 2930 2931 2932 2933 2934 2935 2936 2937 2938 2939 2940 2941 2942 2943 2944
	return _scsih_check_for_pending_tm(ioc, smid);
}

/**
 * _scsih_check_for_pending_tm - check for pending task management
 * @ioc: per adapter object
 * @smid: system request message index
 *
 * This will check delayed target reset list, and feed the
 * next reqeust.
 *
 * Return 1 meaning mf should be freed from _base_interrupt
 *        0 means the mf is freed from this function.
 */
static u8
_scsih_check_for_pending_tm(struct MPT2SAS_ADAPTER *ioc, u16 smid)
{
	struct _tr_list *delayed_tr;

	if (!list_empty(&ioc->delayed_tr_volume_list)) {
		delayed_tr = list_entry(ioc->delayed_tr_volume_list.next,
		    struct _tr_list, list);
		mpt2sas_base_free_smid(ioc, smid);
		_scsih_tm_tr_volume_send(ioc, delayed_tr->handle);
		list_del(&delayed_tr->list);
		kfree(delayed_tr);
		return 0;
	}

2945 2946 2947 2948 2949 2950 2951
	if (!list_empty(&ioc->delayed_tr_list)) {
		delayed_tr = list_entry(ioc->delayed_tr_list.next,
		    struct _tr_list, list);
		mpt2sas_base_free_smid(ioc, smid);
		_scsih_tm_tr_send(ioc, delayed_tr->handle);
		list_del(&delayed_tr->list);
		kfree(delayed_tr);
2952
		return 0;
2953
	}
2954

2955
	return 1;
2956 2957
}

E
Eric Moore 已提交
2958 2959 2960 2961 2962 2963 2964 2965 2966 2967 2968 2969 2970 2971 2972 2973 2974 2975 2976 2977 2978 2979
/**
 * _scsih_check_topo_delete_events - sanity check on topo events
 * @ioc: per adapter object
 * @event_data: the event data payload
 *
 * This routine added to better handle cable breaker.
 *
 * This handles the case where driver recieves multiple expander
 * add and delete events in a single shot.  When there is a delete event
 * the routine will void any pending add events waiting in the event queue.
 *
 * Return nothing.
 */
static void
_scsih_check_topo_delete_events(struct MPT2SAS_ADAPTER *ioc,
    Mpi2EventDataSasTopologyChangeList_t *event_data)
{
	struct fw_event_work *fw_event;
	Mpi2EventDataSasTopologyChangeList_t *local_event_data;
	u16 expander_handle;
	struct _sas_node *sas_expander;
	unsigned long flags;
2980 2981 2982 2983 2984 2985 2986 2987 2988 2989 2990 2991 2992 2993 2994
	int i, reason_code;
	u16 handle;

	for (i = 0 ; i < event_data->NumEntries; i++) {
		if (event_data->PHY[i].PhyStatus &
		    MPI2_EVENT_SAS_TOPO_PHYSTATUS_VACANT)
			continue;
		handle = le16_to_cpu(event_data->PHY[i].AttachedDevHandle);
		if (!handle)
			continue;
		reason_code = event_data->PHY[i].PhyStatus &
		    MPI2_EVENT_SAS_TOPO_RC_MASK;
		if (reason_code == MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING)
			_scsih_tm_tr_send(ioc, handle);
	}
E
Eric Moore 已提交
2995 2996 2997 2998 2999 3000 3001 3002 3003 3004 3005 3006 3007 3008 3009 3010 3011 3012 3013 3014 3015 3016 3017 3018 3019 3020 3021 3022 3023 3024 3025 3026 3027

	expander_handle = le16_to_cpu(event_data->ExpanderDevHandle);
	if (expander_handle < ioc->sas_hba.num_phys) {
		_scsih_block_io_to_children_attached_directly(ioc, event_data);
		return;
	}

	if (event_data->ExpStatus == MPI2_EVENT_SAS_TOPO_ES_DELAY_NOT_RESPONDING
	 || event_data->ExpStatus == MPI2_EVENT_SAS_TOPO_ES_NOT_RESPONDING) {
		spin_lock_irqsave(&ioc->sas_node_lock, flags);
		sas_expander = mpt2sas_scsih_expander_find_by_handle(ioc,
		    expander_handle);
		spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
		_scsih_block_io_to_children_attached_to_ex(ioc, sas_expander);
	} else if (event_data->ExpStatus == MPI2_EVENT_SAS_TOPO_ES_RESPONDING)
		_scsih_block_io_to_children_attached_directly(ioc, event_data);

	if (event_data->ExpStatus != MPI2_EVENT_SAS_TOPO_ES_NOT_RESPONDING)
		return;

	/* mark ignore flag for pending events */
	spin_lock_irqsave(&ioc->fw_event_lock, flags);
	list_for_each_entry(fw_event, &ioc->fw_event_list, list) {
		if (fw_event->event != MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST ||
		    fw_event->ignore)
			continue;
		local_event_data = fw_event->event_data;
		if (local_event_data->ExpStatus ==
		    MPI2_EVENT_SAS_TOPO_ES_ADDED ||
		    local_event_data->ExpStatus ==
		    MPI2_EVENT_SAS_TOPO_ES_RESPONDING) {
			if (le16_to_cpu(local_event_data->ExpanderDevHandle) ==
			    expander_handle) {
3028
				dewtprintk(ioc, printk(MPT2SAS_INFO_FMT
E
Eric Moore 已提交
3029 3030 3031 3032 3033 3034 3035 3036
				    "setting ignoring flag\n", ioc->name));
				fw_event->ignore = 1;
			}
		}
	}
	spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
}

3037 3038 3039 3040 3041 3042 3043 3044 3045 3046 3047 3048 3049 3050 3051 3052 3053 3054 3055 3056 3057 3058 3059 3060 3061 3062 3063 3064 3065 3066 3067 3068 3069 3070 3071 3072 3073 3074 3075 3076 3077 3078 3079 3080 3081 3082 3083 3084 3085 3086 3087 3088 3089 3090 3091 3092 3093 3094 3095 3096 3097 3098 3099 3100 3101 3102 3103 3104 3105 3106 3107 3108 3109 3110 3111 3112 3113 3114 3115 3116 3117 3118 3119 3120 3121 3122 3123 3124 3125 3126 3127 3128 3129 3130 3131 3132 3133 3134 3135 3136 3137 3138 3139 3140 3141 3142 3143 3144 3145 3146 3147 3148 3149 3150 3151 3152 3153 3154 3155 3156 3157 3158 3159 3160 3161 3162 3163 3164 3165 3166 3167 3168 3169 3170 3171 3172 3173 3174 3175 3176 3177 3178 3179 3180 3181 3182 3183 3184 3185 3186 3187 3188 3189 3190 3191 3192 3193 3194 3195
/**
 * _scsih_set_volume_delete_flag - setting volume delete flag
 * @ioc: per adapter object
 * @handle: device handle
 *
 * This
 * Return nothing.
 */
static void
_scsih_set_volume_delete_flag(struct MPT2SAS_ADAPTER *ioc, u16 handle)
{
	struct _raid_device *raid_device;
	struct MPT2SAS_TARGET *sas_target_priv_data;
	unsigned long flags;

	spin_lock_irqsave(&ioc->raid_device_lock, flags);
	raid_device = _scsih_raid_device_find_by_handle(ioc, handle);
	if (raid_device && raid_device->starget &&
	    raid_device->starget->hostdata) {
		sas_target_priv_data =
		    raid_device->starget->hostdata;
		sas_target_priv_data->deleted = 1;
		dewtprintk(ioc, printk(MPT2SAS_INFO_FMT
		    "setting delete flag: handle(0x%04x), "
		    "wwid(0x%016llx)\n", ioc->name, handle,
		    (unsigned long long) raid_device->wwid));
	}
	spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
}

/**
 * _scsih_set_volume_handle_for_tr - set handle for target reset to volume
 * @handle: input handle
 * @a: handle for volume a
 * @b: handle for volume b
 *
 * IR firmware only supports two raid volumes.  The purpose of this
 * routine is to set the volume handle in either a or b. When the given
 * input handle is non-zero, or when a and b have not been set before.
 */
static void
_scsih_set_volume_handle_for_tr(u16 handle, u16 *a, u16 *b)
{
	if (!handle || handle == *a || handle == *b)
		return;
	if (!*a)
		*a = handle;
	else if (!*b)
		*b = handle;
}

/**
 * _scsih_check_ir_config_unhide_events - check for UNHIDE events
 * @ioc: per adapter object
 * @event_data: the event data payload
 * Context: interrupt time.
 *
 * This routine will send target reset to volume, followed by target
 * resets to the PDs. This is called when a PD has been removed, or
 * volume has been deleted or removed. When the target reset is sent
 * to volume, the PD target resets need to be queued to start upon
 * completion of the volume target reset.
 *
 * Return nothing.
 */
static void
_scsih_check_ir_config_unhide_events(struct MPT2SAS_ADAPTER *ioc,
    Mpi2EventDataIrConfigChangeList_t *event_data)
{
	Mpi2EventIrConfigElement_t *element;
	int i;
	u16 handle, volume_handle, a, b;
	struct _tr_list *delayed_tr;

	a = 0;
	b = 0;

	/* Volume Resets for Deleted or Removed */
	element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
	for (i = 0; i < event_data->NumElements; i++, element++) {
		if (element->ReasonCode ==
		    MPI2_EVENT_IR_CHANGE_RC_VOLUME_DELETED ||
		    element->ReasonCode ==
		    MPI2_EVENT_IR_CHANGE_RC_REMOVED) {
			volume_handle = le16_to_cpu(element->VolDevHandle);
			_scsih_set_volume_delete_flag(ioc, volume_handle);
			_scsih_set_volume_handle_for_tr(volume_handle, &a, &b);
		}
	}

	/* Volume Resets for UNHIDE events */
	element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
	for (i = 0; i < event_data->NumElements; i++, element++) {
		if (le32_to_cpu(event_data->Flags) &
		    MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG)
			continue;
		if (element->ReasonCode == MPI2_EVENT_IR_CHANGE_RC_UNHIDE) {
			volume_handle = le16_to_cpu(element->VolDevHandle);
			_scsih_set_volume_handle_for_tr(volume_handle, &a, &b);
		}
	}

	if (a)
		_scsih_tm_tr_volume_send(ioc, a);
	if (b)
		_scsih_tm_tr_volume_send(ioc, b);

	/* PD target resets */
	element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
	for (i = 0; i < event_data->NumElements; i++, element++) {
		if (element->ReasonCode != MPI2_EVENT_IR_CHANGE_RC_UNHIDE)
			continue;
		handle = le16_to_cpu(element->PhysDiskDevHandle);
		volume_handle = le16_to_cpu(element->VolDevHandle);
		clear_bit(handle, ioc->pd_handles);
		if (!volume_handle)
			_scsih_tm_tr_send(ioc, handle);
		else if (volume_handle == a || volume_handle == b) {
			delayed_tr = kzalloc(sizeof(*delayed_tr), GFP_ATOMIC);
			BUG_ON(!delayed_tr);
			INIT_LIST_HEAD(&delayed_tr->list);
			delayed_tr->handle = handle;
			list_add_tail(&delayed_tr->list, &ioc->delayed_tr_list);
			dewtprintk(ioc, printk(MPT2SAS_INFO_FMT
			    "DELAYED:tr:handle(0x%04x), (open)\n", ioc->name,
			    handle));
		} else
			_scsih_tm_tr_send(ioc, handle);
	}
}


/**
 * _scsih_check_volume_delete_events - set delete flag for volumes
 * @ioc: per adapter object
 * @event_data: the event data payload
 * Context: interrupt time.
 *
 * This will handle the case when the cable connected to entire volume is
 * pulled. We will take care of setting the deleted flag so normal IO will
 * not be sent.
 *
 * Return nothing.
 */
static void
_scsih_check_volume_delete_events(struct MPT2SAS_ADAPTER *ioc,
    Mpi2EventDataIrVolume_t *event_data)
{
	u32 state;

	if (event_data->ReasonCode != MPI2_EVENT_IR_VOLUME_RC_STATE_CHANGED)
		return;
	state = le32_to_cpu(event_data->NewValue);
	if (state == MPI2_RAID_VOL_STATE_MISSING || state ==
	    MPI2_RAID_VOL_STATE_FAILED)
		_scsih_set_volume_delete_flag(ioc,
		    le16_to_cpu(event_data->VolDevHandle));
}

E
Eric Moore 已提交
3196 3197 3198 3199 3200 3201 3202 3203 3204 3205 3206 3207 3208 3209 3210 3211
/**
 * _scsih_flush_running_cmds - completing outstanding commands.
 * @ioc: per adapter object
 *
 * The flushing out of all pending scmd commands following host reset,
 * where all IO is dropped to the floor.
 *
 * Return nothing.
 */
static void
_scsih_flush_running_cmds(struct MPT2SAS_ADAPTER *ioc)
{
	struct scsi_cmnd *scmd;
	u16 smid;
	u16 count = 0;

3212 3213
	for (smid = 1; smid <= ioc->scsiio_depth; smid++) {
		scmd = _scsih_scsi_lookup_get(ioc, smid);
E
Eric Moore 已提交
3214 3215 3216 3217 3218
		if (!scmd)
			continue;
		count++;
		mpt2sas_base_free_smid(ioc, smid);
		scsi_dma_unmap(scmd);
3219 3220 3221 3222
		if (ioc->pci_error_recovery)
			scmd->result = DID_NO_CONNECT << 16;
		else
			scmd->result = DID_RESET << 16;
E
Eric Moore 已提交
3223 3224 3225 3226 3227 3228
		scmd->scsi_done(scmd);
	}
	dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "completing %d cmds\n",
	    ioc->name, count));
}

E
Eric Moore 已提交
3229 3230 3231 3232 3233 3234 3235 3236 3237 3238 3239 3240 3241 3242 3243 3244
/**
 * _scsih_setup_eedp - setup MPI request for EEDP transfer
 * @scmd: pointer to scsi command object
 * @mpi_request: pointer to the SCSI_IO reqest message frame
 *
 * Supporting protection 1 and 3.
 *
 * Returns nothing
 */
static void
_scsih_setup_eedp(struct scsi_cmnd *scmd, Mpi2SCSIIORequest_t *mpi_request)
{
	u16 eedp_flags;
	unsigned char prot_op = scsi_get_prot_op(scmd);
	unsigned char prot_type = scsi_get_prot_type(scmd);

3245
	if (prot_type == SCSI_PROT_DIF_TYPE0 || prot_op == SCSI_PROT_NORMAL)
E
Eric Moore 已提交
3246 3247 3248 3249 3250 3251 3252 3253 3254 3255 3256 3257 3258 3259 3260 3261
		return;

	if (prot_op ==  SCSI_PROT_READ_STRIP)
		eedp_flags = MPI2_SCSIIO_EEDPFLAGS_CHECK_REMOVE_OP;
	else if (prot_op ==  SCSI_PROT_WRITE_INSERT)
		eedp_flags = MPI2_SCSIIO_EEDPFLAGS_INSERT_OP;
	else
		return;

	switch (prot_type) {
	case SCSI_PROT_DIF_TYPE1:

		/*
		* enable ref/guard checking
		* auto increment ref tag
		*/
3262
		eedp_flags |= MPI2_SCSIIO_EEDPFLAGS_INC_PRI_REFTAG |
E
Eric Moore 已提交
3263 3264 3265 3266
		    MPI2_SCSIIO_EEDPFLAGS_CHECK_REFTAG |
		    MPI2_SCSIIO_EEDPFLAGS_CHECK_GUARD;
		mpi_request->CDB.EEDP32.PrimaryReferenceTag =
		    cpu_to_be32(scsi_get_lba(scmd));
3267 3268 3269
		break;

	case SCSI_PROT_DIF_TYPE2:
E
Eric Moore 已提交
3270

3271 3272 3273
		eedp_flags |= MPI2_SCSIIO_EEDPFLAGS_INC_PRI_REFTAG |
		    MPI2_SCSIIO_EEDPFLAGS_CHECK_REFTAG |
		    MPI2_SCSIIO_EEDPFLAGS_CHECK_GUARD;
E
Eric Moore 已提交
3274 3275 3276 3277 3278 3279 3280
		break;

	case SCSI_PROT_DIF_TYPE3:

		/*
		* enable guard checking
		*/
3281
		eedp_flags |= MPI2_SCSIIO_EEDPFLAGS_CHECK_GUARD;
E
Eric Moore 已提交
3282 3283
		break;
	}
3284 3285
	mpi_request->EEDPBlockSize = cpu_to_le32(scmd->device->sector_size);
	mpi_request->EEDPFlags = cpu_to_le16(eedp_flags);
E
Eric Moore 已提交
3286 3287 3288 3289 3290 3291 3292 3293 3294 3295 3296 3297 3298 3299 3300 3301 3302 3303 3304 3305 3306 3307 3308 3309 3310 3311 3312 3313 3314 3315 3316 3317 3318 3319 3320 3321 3322 3323 3324 3325 3326 3327 3328 3329
}

/**
 * _scsih_eedp_error_handling - return sense code for EEDP errors
 * @scmd: pointer to scsi command object
 * @ioc_status: ioc status
 *
 * Returns nothing
 */
static void
_scsih_eedp_error_handling(struct scsi_cmnd *scmd, u16 ioc_status)
{
	u8 ascq;
	u8 sk;
	u8 host_byte;

	switch (ioc_status) {
	case MPI2_IOCSTATUS_EEDP_GUARD_ERROR:
		ascq = 0x01;
		break;
	case MPI2_IOCSTATUS_EEDP_APP_TAG_ERROR:
		ascq = 0x02;
		break;
	case MPI2_IOCSTATUS_EEDP_REF_TAG_ERROR:
		ascq = 0x03;
		break;
	default:
		ascq = 0x00;
		break;
	}

	if (scmd->sc_data_direction == DMA_TO_DEVICE) {
		sk = ILLEGAL_REQUEST;
		host_byte = DID_ABORT;
	} else {
		sk = ABORTED_COMMAND;
		host_byte = DID_OK;
	}

	scsi_build_sense_buffer(0, scmd->sense_buffer, sk, 0x10, ascq);
	scmd->result = DRIVER_SENSE << 24 | (host_byte << 16) |
	    SAM_STAT_CHECK_CONDITION;
}

E
Eric Moore 已提交
3330
/**
3331
 * _scsih_qcmd - main scsi request entry point
E
Eric Moore 已提交
3332 3333 3334 3335 3336 3337 3338 3339 3340 3341
 * @scmd: pointer to scsi command object
 * @done: function pointer to be invoked on completion
 *
 * The callback index is set inside `ioc->scsi_io_cb_idx`.
 *
 * Returns 0 on success.  If there's a failure, return either:
 * SCSI_MLQUEUE_DEVICE_BUSY if the device queue is full, or
 * SCSI_MLQUEUE_HOST_BUSY if the entire host queue is full
 */
static int
J
Jeff Garzik 已提交
3342
_scsih_qcmd_lck(struct scsi_cmnd *scmd, void (*done)(struct scsi_cmnd *))
E
Eric Moore 已提交
3343 3344 3345 3346 3347 3348 3349 3350 3351 3352
{
	struct MPT2SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
	struct MPT2SAS_DEVICE *sas_device_priv_data;
	struct MPT2SAS_TARGET *sas_target_priv_data;
	Mpi2SCSIIORequest_t *mpi_request;
	u32 mpi_control;
	u16 smid;

	scmd->scsi_done = done;
	sas_device_priv_data = scmd->device->hostdata;
3353
	if (!sas_device_priv_data || !sas_device_priv_data->sas_target) {
E
Eric Moore 已提交
3354 3355 3356 3357 3358
		scmd->result = DID_NO_CONNECT << 16;
		scmd->scsi_done(scmd);
		return 0;
	}

3359 3360 3361 3362 3363 3364
	if (ioc->pci_error_recovery) {
		scmd->result = DID_NO_CONNECT << 16;
		scmd->scsi_done(scmd);
		return 0;
	}

E
Eric Moore 已提交
3365
	sas_target_priv_data = sas_device_priv_data->sas_target;
3366 3367
	/* invalid device handle */
	if (sas_target_priv_data->handle == MPT2SAS_INVALID_DEVICE_HANDLE) {
E
Eric Moore 已提交
3368 3369 3370 3371 3372
		scmd->result = DID_NO_CONNECT << 16;
		scmd->scsi_done(scmd);
		return 0;
	}

3373 3374
	/* host recovery or link resets sent via IOCTLs */
	if (ioc->shost_recovery || ioc->ioc_link_reset_in_progress)
E
Eric Moore 已提交
3375
		return SCSI_MLQUEUE_HOST_BUSY;
3376
	/* device busy with task management */
3377 3378 3379 3380 3381 3382 3383 3384
	else if (sas_device_priv_data->block || sas_target_priv_data->tm_busy)
		return SCSI_MLQUEUE_DEVICE_BUSY;
	/* device has been deleted */
	else if (sas_target_priv_data->deleted) {
		scmd->result = DID_NO_CONNECT << 16;
		scmd->scsi_done(scmd);
		return 0;
	}
E
Eric Moore 已提交
3385 3386 3387 3388 3389 3390 3391 3392 3393 3394 3395 3396 3397 3398 3399 3400 3401 3402 3403 3404 3405 3406 3407

	if (scmd->sc_data_direction == DMA_FROM_DEVICE)
		mpi_control = MPI2_SCSIIO_CONTROL_READ;
	else if (scmd->sc_data_direction == DMA_TO_DEVICE)
		mpi_control = MPI2_SCSIIO_CONTROL_WRITE;
	else
		mpi_control = MPI2_SCSIIO_CONTROL_NODATATRANSFER;

	/* set tags */
	if (!(sas_device_priv_data->flags & MPT_DEVICE_FLAGS_INIT)) {
		if (scmd->device->tagged_supported) {
			if (scmd->device->ordered_tags)
				mpi_control |= MPI2_SCSIIO_CONTROL_ORDEREDQ;
			else
				mpi_control |= MPI2_SCSIIO_CONTROL_SIMPLEQ;
		} else
/* MPI Revision I (UNIT = 0xA) - removed MPI2_SCSIIO_CONTROL_UNTAGGED */
/*			mpi_control |= MPI2_SCSIIO_CONTROL_UNTAGGED;
 */
			mpi_control |= (0x500);

	} else
		mpi_control |= MPI2_SCSIIO_CONTROL_SIMPLEQ;
3408 3409
	/* Make sure Device is not raid volume */
	if (!_scsih_is_raid(&scmd->device->sdev_gendev) &&
3410
	    sas_is_tlr_enabled(scmd->device) && scmd->cmd_len != 32)
E
Eric Moore 已提交
3411 3412
		mpi_control |= MPI2_SCSIIO_CONTROL_TLR_ON;

3413
	smid = mpt2sas_base_get_smid_scsiio(ioc, ioc->scsi_io_cb_idx, scmd);
E
Eric Moore 已提交
3414 3415 3416 3417 3418 3419 3420
	if (!smid) {
		printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
		    ioc->name, __func__);
		goto out;
	}
	mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
	memset(mpi_request, 0, sizeof(Mpi2SCSIIORequest_t));
E
Eric Moore 已提交
3421
	_scsih_setup_eedp(scmd, mpi_request);
3422 3423
	if (scmd->cmd_len == 32)
		mpi_control |= 4 << MPI2_SCSIIO_CONTROL_ADDCDBLEN_SHIFT;
E
Eric Moore 已提交
3424 3425 3426 3427 3428 3429 3430 3431 3432 3433 3434 3435 3436 3437
	mpi_request->Function = MPI2_FUNCTION_SCSI_IO_REQUEST;
	if (sas_device_priv_data->sas_target->flags &
	    MPT_TARGET_FLAGS_RAID_COMPONENT)
		mpi_request->Function = MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH;
	else
		mpi_request->Function = MPI2_FUNCTION_SCSI_IO_REQUEST;
	mpi_request->DevHandle =
	    cpu_to_le16(sas_device_priv_data->sas_target->handle);
	mpi_request->DataLength = cpu_to_le32(scsi_bufflen(scmd));
	mpi_request->Control = cpu_to_le32(mpi_control);
	mpi_request->IoFlags = cpu_to_le16(scmd->cmd_len);
	mpi_request->MsgFlags = MPI2_SCSIIO_MSGFLAGS_SYSTEM_SENSE_ADDR;
	mpi_request->SenseBufferLength = SCSI_SENSE_BUFFERSIZE;
	mpi_request->SenseBufferLowAddress =
3438
	    mpt2sas_base_get_sense_buffer_dma(ioc, smid);
E
Eric Moore 已提交
3439 3440 3441
	mpi_request->SGLOffset0 = offsetof(Mpi2SCSIIORequest_t, SGL) / 4;
	mpi_request->SGLFlags = cpu_to_le16(MPI2_SCSIIO_SGLFLAGS_TYPE_MPI +
	    MPI2_SCSIIO_SGLFLAGS_SYSTEM_ADDR);
3442 3443
	mpi_request->VF_ID = 0; /* TODO */
	mpi_request->VP_ID = 0;
E
Eric Moore 已提交
3444 3445 3446 3447 3448 3449 3450 3451 3452 3453 3454 3455 3456
	int_to_scsilun(sas_device_priv_data->lun, (struct scsi_lun *)
	    mpi_request->LUN);
	memcpy(mpi_request->CDB.CDB32, scmd->cmnd, scmd->cmd_len);

	if (!mpi_request->DataLength) {
		mpt2sas_base_build_zero_len_sge(ioc, &mpi_request->SGL);
	} else {
		if (_scsih_build_scatter_gather(ioc, scmd, smid)) {
			mpt2sas_base_free_smid(ioc, smid);
			goto out;
		}
	}

3457 3458 3459 3460 3461
	if (likely(mpi_request->Function == MPI2_FUNCTION_SCSI_IO_REQUEST))
		mpt2sas_base_put_smid_scsi_io(ioc, smid,
		    sas_device_priv_data->sas_target->handle);
	else
		mpt2sas_base_put_smid_default(ioc, smid);
E
Eric Moore 已提交
3462 3463 3464 3465 3466 3467
	return 0;

 out:
	return SCSI_MLQUEUE_HOST_BUSY;
}

J
Jeff Garzik 已提交
3468 3469
static DEF_SCSI_QCMD(_scsih_qcmd)

E
Eric Moore 已提交
3470 3471 3472 3473 3474 3475 3476 3477 3478 3479 3480 3481 3482 3483 3484 3485 3486 3487 3488 3489 3490 3491 3492 3493 3494
/**
 * _scsih_normalize_sense - normalize descriptor and fixed format sense data
 * @sense_buffer: sense data returned by target
 * @data: normalized skey/asc/ascq
 *
 * Return nothing.
 */
static void
_scsih_normalize_sense(char *sense_buffer, struct sense_info *data)
{
	if ((sense_buffer[0] & 0x7F) >= 0x72) {
		/* descriptor format */
		data->skey = sense_buffer[1] & 0x0F;
		data->asc = sense_buffer[2];
		data->ascq = sense_buffer[3];
	} else {
		/* fixed format */
		data->skey = sense_buffer[2] & 0x0F;
		data->asc = sense_buffer[12];
		data->ascq = sense_buffer[13];
	}
}

#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
/**
3495
 * _scsih_scsi_ioc_info - translated non-successfull SCSI_IO request
E
Eric Moore 已提交
3496 3497 3498 3499 3500 3501 3502 3503 3504 3505 3506 3507 3508 3509 3510 3511 3512 3513 3514 3515 3516 3517 3518
 * @ioc: per adapter object
 * @scmd: pointer to scsi command object
 * @mpi_reply: reply mf payload returned from firmware
 *
 * scsi_status - SCSI Status code returned from target device
 * scsi_state - state info associated with SCSI_IO determined by ioc
 * ioc_status - ioc supplied status info
 *
 * Return nothing.
 */
static void
_scsih_scsi_ioc_info(struct MPT2SAS_ADAPTER *ioc, struct scsi_cmnd *scmd,
    Mpi2SCSIIOReply_t *mpi_reply, u16 smid)
{
	u32 response_info;
	u8 *response_bytes;
	u16 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) &
	    MPI2_IOCSTATUS_MASK;
	u8 scsi_state = mpi_reply->SCSIState;
	u8 scsi_status = mpi_reply->SCSIStatus;
	char *desc_ioc_state = NULL;
	char *desc_scsi_status = NULL;
	char *desc_scsi_state = ioc->tmp_string;
3519
	u32 log_info = le32_to_cpu(mpi_reply->IOCLogInfo);
3520 3521
	struct _sas_device *sas_device = NULL;
	unsigned long flags;
3522 3523 3524 3525 3526
	struct scsi_target *starget = scmd->device->sdev_target;
	struct MPT2SAS_TARGET *priv_target = starget->hostdata;

	if (!priv_target)
		return;
3527 3528 3529

	if (log_info == 0x31170000)
		return;
E
Eric Moore 已提交
3530 3531 3532 3533 3534 3535 3536 3537 3538 3539 3540 3541 3542 3543 3544 3545 3546 3547 3548 3549 3550 3551 3552 3553 3554 3555 3556 3557 3558 3559 3560 3561 3562 3563 3564 3565 3566 3567 3568 3569 3570 3571 3572 3573

	switch (ioc_status) {
	case MPI2_IOCSTATUS_SUCCESS:
		desc_ioc_state = "success";
		break;
	case MPI2_IOCSTATUS_INVALID_FUNCTION:
		desc_ioc_state = "invalid function";
		break;
	case MPI2_IOCSTATUS_SCSI_RECOVERED_ERROR:
		desc_ioc_state = "scsi recovered error";
		break;
	case MPI2_IOCSTATUS_SCSI_INVALID_DEVHANDLE:
		desc_ioc_state = "scsi invalid dev handle";
		break;
	case MPI2_IOCSTATUS_SCSI_DEVICE_NOT_THERE:
		desc_ioc_state = "scsi device not there";
		break;
	case MPI2_IOCSTATUS_SCSI_DATA_OVERRUN:
		desc_ioc_state = "scsi data overrun";
		break;
	case MPI2_IOCSTATUS_SCSI_DATA_UNDERRUN:
		desc_ioc_state = "scsi data underrun";
		break;
	case MPI2_IOCSTATUS_SCSI_IO_DATA_ERROR:
		desc_ioc_state = "scsi io data error";
		break;
	case MPI2_IOCSTATUS_SCSI_PROTOCOL_ERROR:
		desc_ioc_state = "scsi protocol error";
		break;
	case MPI2_IOCSTATUS_SCSI_TASK_TERMINATED:
		desc_ioc_state = "scsi task terminated";
		break;
	case MPI2_IOCSTATUS_SCSI_RESIDUAL_MISMATCH:
		desc_ioc_state = "scsi residual mismatch";
		break;
	case MPI2_IOCSTATUS_SCSI_TASK_MGMT_FAILED:
		desc_ioc_state = "scsi task mgmt failed";
		break;
	case MPI2_IOCSTATUS_SCSI_IOC_TERMINATED:
		desc_ioc_state = "scsi ioc terminated";
		break;
	case MPI2_IOCSTATUS_SCSI_EXT_TERMINATED:
		desc_ioc_state = "scsi ext terminated";
		break;
E
Eric Moore 已提交
3574 3575 3576 3577 3578 3579 3580 3581 3582
	case MPI2_IOCSTATUS_EEDP_GUARD_ERROR:
		desc_ioc_state = "eedp guard error";
		break;
	case MPI2_IOCSTATUS_EEDP_REF_TAG_ERROR:
		desc_ioc_state = "eedp ref tag error";
		break;
	case MPI2_IOCSTATUS_EEDP_APP_TAG_ERROR:
		desc_ioc_state = "eedp app tag error";
		break;
E
Eric Moore 已提交
3583 3584 3585 3586 3587 3588 3589 3590 3591 3592 3593 3594 3595 3596 3597 3598 3599 3600 3601 3602 3603 3604 3605 3606 3607 3608 3609 3610 3611 3612 3613 3614 3615 3616 3617 3618 3619 3620 3621 3622 3623 3624 3625 3626 3627 3628 3629 3630 3631 3632 3633 3634 3635 3636 3637 3638 3639 3640 3641
	default:
		desc_ioc_state = "unknown";
		break;
	}

	switch (scsi_status) {
	case MPI2_SCSI_STATUS_GOOD:
		desc_scsi_status = "good";
		break;
	case MPI2_SCSI_STATUS_CHECK_CONDITION:
		desc_scsi_status = "check condition";
		break;
	case MPI2_SCSI_STATUS_CONDITION_MET:
		desc_scsi_status = "condition met";
		break;
	case MPI2_SCSI_STATUS_BUSY:
		desc_scsi_status = "busy";
		break;
	case MPI2_SCSI_STATUS_INTERMEDIATE:
		desc_scsi_status = "intermediate";
		break;
	case MPI2_SCSI_STATUS_INTERMEDIATE_CONDMET:
		desc_scsi_status = "intermediate condmet";
		break;
	case MPI2_SCSI_STATUS_RESERVATION_CONFLICT:
		desc_scsi_status = "reservation conflict";
		break;
	case MPI2_SCSI_STATUS_COMMAND_TERMINATED:
		desc_scsi_status = "command terminated";
		break;
	case MPI2_SCSI_STATUS_TASK_SET_FULL:
		desc_scsi_status = "task set full";
		break;
	case MPI2_SCSI_STATUS_ACA_ACTIVE:
		desc_scsi_status = "aca active";
		break;
	case MPI2_SCSI_STATUS_TASK_ABORTED:
		desc_scsi_status = "task aborted";
		break;
	default:
		desc_scsi_status = "unknown";
		break;
	}

	desc_scsi_state[0] = '\0';
	if (!scsi_state)
		desc_scsi_state = " ";
	if (scsi_state & MPI2_SCSI_STATE_RESPONSE_INFO_VALID)
		strcat(desc_scsi_state, "response info ");
	if (scsi_state & MPI2_SCSI_STATE_TERMINATED)
		strcat(desc_scsi_state, "state terminated ");
	if (scsi_state & MPI2_SCSI_STATE_NO_SCSI_STATUS)
		strcat(desc_scsi_state, "no status ");
	if (scsi_state & MPI2_SCSI_STATE_AUTOSENSE_FAILED)
		strcat(desc_scsi_state, "autosense failed ");
	if (scsi_state & MPI2_SCSI_STATE_AUTOSENSE_VALID)
		strcat(desc_scsi_state, "autosense valid ");

	scsi_print_command(scmd);
3642

3643 3644 3645 3646 3647 3648 3649 3650 3651 3652 3653 3654 3655 3656 3657 3658 3659
	if (priv_target->flags & MPT_TARGET_FLAGS_VOLUME) {
		printk(MPT2SAS_WARN_FMT "\tvolume wwid(0x%016llx)\n", ioc->name,
		    (unsigned long long)priv_target->sas_address);
	} else {
		spin_lock_irqsave(&ioc->sas_device_lock, flags);
		sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
		    priv_target->sas_address);
		if (sas_device) {
			printk(MPT2SAS_WARN_FMT "\tsas_address(0x%016llx), "
			    "phy(%d)\n", ioc->name, sas_device->sas_address,
			    sas_device->phy);
			printk(MPT2SAS_WARN_FMT
			    "\tenclosure_logical_id(0x%016llx), slot(%d)\n",
			    ioc->name, sas_device->enclosure_logical_id,
			    sas_device->slot);
		}
		spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
3660 3661
	}

3662 3663 3664
	printk(MPT2SAS_WARN_FMT "\thandle(0x%04x), ioc_status(%s)(0x%04x), "
	    "smid(%d)\n", ioc->name, le16_to_cpu(mpi_reply->DevHandle),
	    desc_ioc_state, ioc_status, smid);
E
Eric Moore 已提交
3665 3666 3667 3668 3669 3670 3671 3672 3673 3674 3675 3676 3677 3678
	printk(MPT2SAS_WARN_FMT "\trequest_len(%d), underflow(%d), "
	    "resid(%d)\n", ioc->name, scsi_bufflen(scmd), scmd->underflow,
	    scsi_get_resid(scmd));
	printk(MPT2SAS_WARN_FMT "\ttag(%d), transfer_count(%d), "
	    "sc->result(0x%08x)\n", ioc->name, le16_to_cpu(mpi_reply->TaskTag),
	    le32_to_cpu(mpi_reply->TransferCount), scmd->result);
	printk(MPT2SAS_WARN_FMT "\tscsi_status(%s)(0x%02x), "
	    "scsi_state(%s)(0x%02x)\n", ioc->name, desc_scsi_status,
	    scsi_status, desc_scsi_state, scsi_state);

	if (scsi_state & MPI2_SCSI_STATE_AUTOSENSE_VALID) {
		struct sense_info data;
		_scsih_normalize_sense(scmd->sense_buffer, &data);
		printk(MPT2SAS_WARN_FMT "\t[sense_key,asc,ascq]: "
3679 3680
		    "[0x%02x,0x%02x,0x%02x], count(%d)\n", ioc->name, data.skey,
		    data.asc, data.ascq, le32_to_cpu(mpi_reply->SenseCount));
E
Eric Moore 已提交
3681 3682 3683 3684 3685
	}

	if (scsi_state & MPI2_SCSI_STATE_RESPONSE_INFO_VALID) {
		response_info = le32_to_cpu(mpi_reply->ResponseInfo);
		response_bytes = (u8 *)&response_info;
3686
		_scsih_response_code(ioc, response_bytes[0]);
E
Eric Moore 已提交
3687 3688 3689 3690 3691 3692 3693 3694 3695 3696 3697 3698 3699 3700 3701 3702 3703 3704 3705 3706 3707 3708 3709 3710 3711 3712 3713 3714 3715 3716 3717 3718 3719 3720 3721 3722 3723 3724 3725 3726 3727 3728 3729 3730 3731 3732 3733
	}
}
#endif

/**
 * _scsih_smart_predicted_fault - illuminate Fault LED
 * @ioc: per adapter object
 * @handle: device handle
 *
 * Return nothing.
 */
static void
_scsih_smart_predicted_fault(struct MPT2SAS_ADAPTER *ioc, u16 handle)
{
	Mpi2SepReply_t mpi_reply;
	Mpi2SepRequest_t mpi_request;
	struct scsi_target *starget;
	struct MPT2SAS_TARGET *sas_target_priv_data;
	Mpi2EventNotificationReply_t *event_reply;
	Mpi2EventDataSasDeviceStatusChange_t *event_data;
	struct _sas_device *sas_device;
	ssize_t sz;
	unsigned long flags;

	/* only handle non-raid devices */
	spin_lock_irqsave(&ioc->sas_device_lock, flags);
	sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
	if (!sas_device) {
		spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
		return;
	}
	starget = sas_device->starget;
	sas_target_priv_data = starget->hostdata;

	if ((sas_target_priv_data->flags & MPT_TARGET_FLAGS_RAID_COMPONENT) ||
	   ((sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME))) {
		spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
		return;
	}
	starget_printk(KERN_WARNING, starget, "predicted fault\n");
	spin_unlock_irqrestore(&ioc->sas_device_lock, flags);

	if (ioc->pdev->subsystem_vendor == PCI_VENDOR_ID_IBM) {
		memset(&mpi_request, 0, sizeof(Mpi2SepRequest_t));
		mpi_request.Function = MPI2_FUNCTION_SCSI_ENCLOSURE_PROCESSOR;
		mpi_request.Action = MPI2_SEP_REQ_ACTION_WRITE_STATUS;
		mpi_request.SlotStatus =
3734
		    cpu_to_le32(MPI2_SEP_REQ_SLOTSTATUS_PREDICTED_FAULT);
E
Eric Moore 已提交
3735 3736 3737 3738 3739 3740 3741 3742 3743 3744 3745 3746 3747 3748 3749 3750 3751 3752 3753 3754 3755 3756 3757 3758 3759 3760 3761 3762 3763 3764 3765 3766 3767 3768 3769 3770 3771 3772 3773 3774 3775 3776 3777 3778 3779 3780
		mpi_request.DevHandle = cpu_to_le16(handle);
		mpi_request.Flags = MPI2_SEP_REQ_FLAGS_DEVHANDLE_ADDRESS;
		if ((mpt2sas_base_scsi_enclosure_processor(ioc, &mpi_reply,
		    &mpi_request)) != 0) {
			printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
			    ioc->name, __FILE__, __LINE__, __func__);
			return;
		}

		if (mpi_reply.IOCStatus || mpi_reply.IOCLogInfo) {
			dewtprintk(ioc, printk(MPT2SAS_INFO_FMT
			    "enclosure_processor: ioc_status (0x%04x), "
			    "loginfo(0x%08x)\n", ioc->name,
			    le16_to_cpu(mpi_reply.IOCStatus),
			    le32_to_cpu(mpi_reply.IOCLogInfo)));
			return;
		}
	}

	/* insert into event log */
	sz = offsetof(Mpi2EventNotificationReply_t, EventData) +
	     sizeof(Mpi2EventDataSasDeviceStatusChange_t);
	event_reply = kzalloc(sz, GFP_KERNEL);
	if (!event_reply) {
		printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
		    ioc->name, __FILE__, __LINE__, __func__);
		return;
	}

	event_reply->Function = MPI2_FUNCTION_EVENT_NOTIFICATION;
	event_reply->Event =
	    cpu_to_le16(MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE);
	event_reply->MsgLength = sz/4;
	event_reply->EventDataLength =
	    cpu_to_le16(sizeof(Mpi2EventDataSasDeviceStatusChange_t)/4);
	event_data = (Mpi2EventDataSasDeviceStatusChange_t *)
	    event_reply->EventData;
	event_data->ReasonCode = MPI2_EVENT_SAS_DEV_STAT_RC_SMART_DATA;
	event_data->ASC = 0x5D;
	event_data->DevHandle = cpu_to_le16(handle);
	event_data->SASAddress = cpu_to_le64(sas_target_priv_data->sas_address);
	mpt2sas_ctl_add_to_event_log(ioc, event_reply);
	kfree(event_reply);
}

/**
3781
 * _scsih_io_done - scsi request callback
E
Eric Moore 已提交
3782 3783
 * @ioc: per adapter object
 * @smid: system request message index
3784
 * @msix_index: MSIX table index supplied by the OS
E
Eric Moore 已提交
3785 3786
 * @reply: reply message frame(lower 32bit addr)
 *
3787
 * Callback handler when using _scsih_qcmd.
E
Eric Moore 已提交
3788
 *
3789 3790
 * Return 1 meaning mf should be freed from _base_interrupt
 *        0 means the mf is freed from this function.
E
Eric Moore 已提交
3791
 */
3792
static u8
3793
_scsih_io_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 msix_index, u32 reply)
E
Eric Moore 已提交
3794 3795 3796 3797 3798 3799 3800 3801 3802 3803
{
	Mpi2SCSIIORequest_t *mpi_request;
	Mpi2SCSIIOReply_t *mpi_reply;
	struct scsi_cmnd *scmd;
	u16 ioc_status;
	u32 xfer_cnt;
	u8 scsi_state;
	u8 scsi_status;
	u32 log_info;
	struct MPT2SAS_DEVICE *sas_device_priv_data;
3804
	u32 response_code = 0;
E
Eric Moore 已提交
3805 3806

	mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply);
3807
	scmd = _scsih_scsi_lookup_get(ioc, smid);
E
Eric Moore 已提交
3808
	if (scmd == NULL)
3809
		return 1;
E
Eric Moore 已提交
3810 3811 3812 3813 3814 3815 3816 3817 3818 3819 3820 3821 3822 3823 3824 3825

	mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);

	if (mpi_reply == NULL) {
		scmd->result = DID_OK << 16;
		goto out;
	}

	sas_device_priv_data = scmd->device->hostdata;
	if (!sas_device_priv_data || !sas_device_priv_data->sas_target ||
	     sas_device_priv_data->sas_target->deleted) {
		scmd->result = DID_NO_CONNECT << 16;
		goto out;
	}

	/* turning off TLR */
3826 3827 3828 3829
	scsi_state = mpi_reply->SCSIState;
	if (scsi_state & MPI2_SCSI_STATE_RESPONSE_INFO_VALID)
		response_code =
		    le32_to_cpu(mpi_reply->ResponseInfo) & 0xFF;
E
Eric Moore 已提交
3830 3831
	if (!sas_device_priv_data->tlr_snoop_check) {
		sas_device_priv_data->tlr_snoop_check++;
3832 3833
	if (!_scsih_is_raid(&scmd->device->sdev_gendev) &&
		sas_is_tlr_enabled(scmd->device) &&
3834 3835 3836 3837
		    response_code == MPI2_SCSITASKMGMT_RSP_INVALID_FRAME) {
			sas_disable_tlr(scmd->device);
			sdev_printk(KERN_INFO, scmd->device, "TLR disabled\n");
		}
E
Eric Moore 已提交
3838 3839 3840 3841 3842 3843 3844 3845 3846 3847 3848 3849 3850 3851 3852 3853 3854 3855 3856 3857 3858 3859 3860
	}

	xfer_cnt = le32_to_cpu(mpi_reply->TransferCount);
	scsi_set_resid(scmd, scsi_bufflen(scmd) - xfer_cnt);
	ioc_status = le16_to_cpu(mpi_reply->IOCStatus);
	if (ioc_status & MPI2_IOCSTATUS_FLAG_LOG_INFO_AVAILABLE)
		log_info =  le32_to_cpu(mpi_reply->IOCLogInfo);
	else
		log_info = 0;
	ioc_status &= MPI2_IOCSTATUS_MASK;
	scsi_status = mpi_reply->SCSIStatus;

	if (ioc_status == MPI2_IOCSTATUS_SCSI_DATA_UNDERRUN && xfer_cnt == 0 &&
	    (scsi_status == MPI2_SCSI_STATUS_BUSY ||
	     scsi_status == MPI2_SCSI_STATUS_RESERVATION_CONFLICT ||
	     scsi_status == MPI2_SCSI_STATUS_TASK_SET_FULL)) {
		ioc_status = MPI2_IOCSTATUS_SUCCESS;
	}

	if (scsi_state & MPI2_SCSI_STATE_AUTOSENSE_VALID) {
		struct sense_info data;
		const void *sense_data = mpt2sas_base_get_sense_buffer(ioc,
		    smid);
3861
		u32 sz = min_t(u32, SCSI_SENSE_BUFFERSIZE,
E
Eric Moore 已提交
3862
		    le32_to_cpu(mpi_reply->SenseCount));
3863
		memcpy(scmd->sense_buffer, sense_data, sz);
E
Eric Moore 已提交
3864 3865 3866 3867 3868 3869 3870 3871 3872 3873 3874 3875 3876 3877 3878 3879 3880 3881 3882
		_scsih_normalize_sense(scmd->sense_buffer, &data);
		/* failure prediction threshold exceeded */
		if (data.asc == 0x5D)
			_scsih_smart_predicted_fault(ioc,
			    le16_to_cpu(mpi_reply->DevHandle));
	}

	switch (ioc_status) {
	case MPI2_IOCSTATUS_BUSY:
	case MPI2_IOCSTATUS_INSUFFICIENT_RESOURCES:
		scmd->result = SAM_STAT_BUSY;
		break;

	case MPI2_IOCSTATUS_SCSI_DEVICE_NOT_THERE:
		scmd->result = DID_NO_CONNECT << 16;
		break;

	case MPI2_IOCSTATUS_SCSI_IOC_TERMINATED:
		if (sas_device_priv_data->block) {
3883 3884
			scmd->result = DID_TRANSPORT_DISRUPTED << 16;
			goto out;
E
Eric Moore 已提交
3885 3886 3887 3888 3889 3890 3891 3892 3893 3894 3895 3896 3897 3898 3899 3900 3901 3902 3903 3904 3905 3906 3907 3908 3909 3910 3911 3912 3913 3914 3915 3916 3917 3918 3919 3920 3921 3922 3923 3924 3925 3926 3927 3928 3929 3930
		}
	case MPI2_IOCSTATUS_SCSI_TASK_TERMINATED:
	case MPI2_IOCSTATUS_SCSI_EXT_TERMINATED:
		scmd->result = DID_RESET << 16;
		break;

	case MPI2_IOCSTATUS_SCSI_RESIDUAL_MISMATCH:
		if ((xfer_cnt == 0) || (scmd->underflow > xfer_cnt))
			scmd->result = DID_SOFT_ERROR << 16;
		else
			scmd->result = (DID_OK << 16) | scsi_status;
		break;

	case MPI2_IOCSTATUS_SCSI_DATA_UNDERRUN:
		scmd->result = (DID_OK << 16) | scsi_status;

		if ((scsi_state & MPI2_SCSI_STATE_AUTOSENSE_VALID))
			break;

		if (xfer_cnt < scmd->underflow) {
			if (scsi_status == SAM_STAT_BUSY)
				scmd->result = SAM_STAT_BUSY;
			else
				scmd->result = DID_SOFT_ERROR << 16;
		} else if (scsi_state & (MPI2_SCSI_STATE_AUTOSENSE_FAILED |
		     MPI2_SCSI_STATE_NO_SCSI_STATUS))
			scmd->result = DID_SOFT_ERROR << 16;
		else if (scsi_state & MPI2_SCSI_STATE_TERMINATED)
			scmd->result = DID_RESET << 16;
		else if (!xfer_cnt && scmd->cmnd[0] == REPORT_LUNS) {
			mpi_reply->SCSIState = MPI2_SCSI_STATE_AUTOSENSE_VALID;
			mpi_reply->SCSIStatus = SAM_STAT_CHECK_CONDITION;
			scmd->result = (DRIVER_SENSE << 24) |
			    SAM_STAT_CHECK_CONDITION;
			scmd->sense_buffer[0] = 0x70;
			scmd->sense_buffer[2] = ILLEGAL_REQUEST;
			scmd->sense_buffer[12] = 0x20;
			scmd->sense_buffer[13] = 0;
		}
		break;

	case MPI2_IOCSTATUS_SCSI_DATA_OVERRUN:
		scsi_set_resid(scmd, 0);
	case MPI2_IOCSTATUS_SCSI_RECOVERED_ERROR:
	case MPI2_IOCSTATUS_SUCCESS:
		scmd->result = (DID_OK << 16) | scsi_status;
3931 3932 3933 3934
		if (response_code ==
		    MPI2_SCSITASKMGMT_RSP_INVALID_FRAME ||
		    (scsi_state & (MPI2_SCSI_STATE_AUTOSENSE_FAILED |
		     MPI2_SCSI_STATE_NO_SCSI_STATUS)))
E
Eric Moore 已提交
3935 3936 3937 3938 3939
			scmd->result = DID_SOFT_ERROR << 16;
		else if (scsi_state & MPI2_SCSI_STATE_TERMINATED)
			scmd->result = DID_RESET << 16;
		break;

E
Eric Moore 已提交
3940 3941 3942 3943 3944
	case MPI2_IOCSTATUS_EEDP_GUARD_ERROR:
	case MPI2_IOCSTATUS_EEDP_REF_TAG_ERROR:
	case MPI2_IOCSTATUS_EEDP_APP_TAG_ERROR:
		_scsih_eedp_error_handling(scmd, ioc_status);
		break;
E
Eric Moore 已提交
3945 3946 3947 3948 3949 3950 3951 3952 3953 3954 3955 3956 3957 3958 3959 3960 3961 3962 3963 3964 3965 3966
	case MPI2_IOCSTATUS_SCSI_PROTOCOL_ERROR:
	case MPI2_IOCSTATUS_INVALID_FUNCTION:
	case MPI2_IOCSTATUS_INVALID_SGL:
	case MPI2_IOCSTATUS_INTERNAL_ERROR:
	case MPI2_IOCSTATUS_INVALID_FIELD:
	case MPI2_IOCSTATUS_INVALID_STATE:
	case MPI2_IOCSTATUS_SCSI_IO_DATA_ERROR:
	case MPI2_IOCSTATUS_SCSI_TASK_MGMT_FAILED:
	default:
		scmd->result = DID_SOFT_ERROR << 16;
		break;

	}

#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
	if (scmd->result && (ioc->logging_level & MPT_DEBUG_REPLY))
		_scsih_scsi_ioc_info(ioc , scmd, mpi_reply, smid);
#endif

 out:
	scsi_dma_unmap(scmd);
	scmd->scsi_done(scmd);
3967
	return 1;
E
Eric Moore 已提交
3968 3969 3970 3971 3972 3973 3974 3975 3976 3977 3978 3979 3980 3981
}

/**
 * _scsih_sas_host_refresh - refreshing sas host object contents
 * @ioc: per adapter object
 * Context: user
 *
 * During port enable, fw will send topology events for every device. Its
 * possible that the handles may change from the previous setting, so this
 * code keeping handles updating if changed.
 *
 * Return nothing.
 */
static void
3982
_scsih_sas_host_refresh(struct MPT2SAS_ADAPTER *ioc)
E
Eric Moore 已提交
3983 3984 3985 3986 3987 3988
{
	u16 sz;
	u16 ioc_status;
	int i;
	Mpi2ConfigReply_t mpi_reply;
	Mpi2SasIOUnitPage0_t *sas_iounit_pg0 = NULL;
3989
	u16 attached_handle;
3990
	u8 link_rate;
E
Eric Moore 已提交
3991 3992 3993 3994 3995 3996 3997 3998 3999 4000 4001 4002 4003 4004

	dtmprintk(ioc, printk(MPT2SAS_INFO_FMT
	    "updating handles for sas_host(0x%016llx)\n",
	    ioc->name, (unsigned long long)ioc->sas_hba.sas_address));

	sz = offsetof(Mpi2SasIOUnitPage0_t, PhyData) + (ioc->sas_hba.num_phys
	    * sizeof(Mpi2SasIOUnit0PhyData_t));
	sas_iounit_pg0 = kzalloc(sz, GFP_KERNEL);
	if (!sas_iounit_pg0) {
		printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
		    ioc->name, __FILE__, __LINE__, __func__);
		return;
	}

4005 4006 4007 4008 4009 4010 4011
	if ((mpt2sas_config_get_sas_iounit_pg0(ioc, &mpi_reply,
	    sas_iounit_pg0, sz)) != 0)
		goto out;
	ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & MPI2_IOCSTATUS_MASK;
	if (ioc_status != MPI2_IOCSTATUS_SUCCESS)
		goto out;
	for (i = 0; i < ioc->sas_hba.num_phys ; i++) {
4012
		link_rate = sas_iounit_pg0->PhyData[i].NegotiatedLinkRate >> 4;
4013 4014 4015 4016 4017 4018
		if (i == 0)
			ioc->sas_hba.handle = le16_to_cpu(sas_iounit_pg0->
			    PhyData[0].ControllerDevHandle);
		ioc->sas_hba.phy[i].handle = ioc->sas_hba.handle;
		attached_handle = le16_to_cpu(sas_iounit_pg0->PhyData[i].
		    AttachedDevHandle);
4019 4020
		if (attached_handle && link_rate < MPI2_SAS_NEG_LINK_RATE_1_5)
			link_rate = MPI2_SAS_NEG_LINK_RATE_1_5;
4021
		mpt2sas_transport_update_links(ioc, ioc->sas_hba.sas_address,
4022
		    attached_handle, i, link_rate);
4023
	}
E
Eric Moore 已提交
4024 4025 4026 4027 4028 4029 4030 4031 4032 4033 4034 4035 4036 4037 4038 4039 4040 4041 4042 4043 4044 4045 4046 4047 4048 4049 4050 4051 4052 4053 4054 4055 4056 4057 4058 4059 4060 4061 4062 4063 4064 4065 4066 4067 4068 4069 4070 4071 4072 4073 4074 4075 4076 4077 4078 4079 4080 4081 4082 4083 4084 4085 4086 4087 4088 4089 4090 4091 4092 4093 4094 4095 4096 4097 4098 4099 4100 4101 4102 4103 4104 4105 4106 4107 4108 4109 4110 4111 4112 4113 4114 4115 4116 4117 4118 4119 4120 4121 4122 4123 4124 4125 4126 4127 4128 4129 4130 4131 4132 4133 4134 4135
 out:
	kfree(sas_iounit_pg0);
}

/**
 * _scsih_sas_host_add - create sas host object
 * @ioc: per adapter object
 *
 * Creating host side data object, stored in ioc->sas_hba
 *
 * Return nothing.
 */
static void
_scsih_sas_host_add(struct MPT2SAS_ADAPTER *ioc)
{
	int i;
	Mpi2ConfigReply_t mpi_reply;
	Mpi2SasIOUnitPage0_t *sas_iounit_pg0 = NULL;
	Mpi2SasIOUnitPage1_t *sas_iounit_pg1 = NULL;
	Mpi2SasPhyPage0_t phy_pg0;
	Mpi2SasDevicePage0_t sas_device_pg0;
	Mpi2SasEnclosurePage0_t enclosure_pg0;
	u16 ioc_status;
	u16 sz;
	u16 device_missing_delay;

	mpt2sas_config_get_number_hba_phys(ioc, &ioc->sas_hba.num_phys);
	if (!ioc->sas_hba.num_phys) {
		printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
		    ioc->name, __FILE__, __LINE__, __func__);
		return;
	}

	/* sas_iounit page 0 */
	sz = offsetof(Mpi2SasIOUnitPage0_t, PhyData) + (ioc->sas_hba.num_phys *
	    sizeof(Mpi2SasIOUnit0PhyData_t));
	sas_iounit_pg0 = kzalloc(sz, GFP_KERNEL);
	if (!sas_iounit_pg0) {
		printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
		    ioc->name, __FILE__, __LINE__, __func__);
		return;
	}
	if ((mpt2sas_config_get_sas_iounit_pg0(ioc, &mpi_reply,
	    sas_iounit_pg0, sz))) {
		printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
		    ioc->name, __FILE__, __LINE__, __func__);
		goto out;
	}
	ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
	    MPI2_IOCSTATUS_MASK;
	if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
		printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
		    ioc->name, __FILE__, __LINE__, __func__);
		goto out;
	}

	/* sas_iounit page 1 */
	sz = offsetof(Mpi2SasIOUnitPage1_t, PhyData) + (ioc->sas_hba.num_phys *
	    sizeof(Mpi2SasIOUnit1PhyData_t));
	sas_iounit_pg1 = kzalloc(sz, GFP_KERNEL);
	if (!sas_iounit_pg1) {
		printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
		    ioc->name, __FILE__, __LINE__, __func__);
		goto out;
	}
	if ((mpt2sas_config_get_sas_iounit_pg1(ioc, &mpi_reply,
	    sas_iounit_pg1, sz))) {
		printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
		    ioc->name, __FILE__, __LINE__, __func__);
		goto out;
	}
	ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
	    MPI2_IOCSTATUS_MASK;
	if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
		printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
		    ioc->name, __FILE__, __LINE__, __func__);
		goto out;
	}

	ioc->io_missing_delay =
	    le16_to_cpu(sas_iounit_pg1->IODeviceMissingDelay);
	device_missing_delay =
	    le16_to_cpu(sas_iounit_pg1->ReportDeviceMissingDelay);
	if (device_missing_delay & MPI2_SASIOUNIT1_REPORT_MISSING_UNIT_16)
		ioc->device_missing_delay = (device_missing_delay &
		    MPI2_SASIOUNIT1_REPORT_MISSING_TIMEOUT_MASK) * 16;
	else
		ioc->device_missing_delay = device_missing_delay &
		    MPI2_SASIOUNIT1_REPORT_MISSING_TIMEOUT_MASK;

	ioc->sas_hba.parent_dev = &ioc->shost->shost_gendev;
	ioc->sas_hba.phy = kcalloc(ioc->sas_hba.num_phys,
	    sizeof(struct _sas_phy), GFP_KERNEL);
	if (!ioc->sas_hba.phy) {
		printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
		    ioc->name, __FILE__, __LINE__, __func__);
		goto out;
	}
	for (i = 0; i < ioc->sas_hba.num_phys ; i++) {
		if ((mpt2sas_config_get_phy_pg0(ioc, &mpi_reply, &phy_pg0,
		    i))) {
			printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
			    ioc->name, __FILE__, __LINE__, __func__);
			goto out;
		}
		ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
		    MPI2_IOCSTATUS_MASK;
		if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
			printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
			    ioc->name, __FILE__, __LINE__, __func__);
			goto out;
		}
4136 4137 4138 4139 4140

		if (i == 0)
			ioc->sas_hba.handle = le16_to_cpu(sas_iounit_pg0->
			    PhyData[0].ControllerDevHandle);
		ioc->sas_hba.phy[i].handle = ioc->sas_hba.handle;
E
Eric Moore 已提交
4141 4142 4143 4144 4145
		ioc->sas_hba.phy[i].phy_id = i;
		mpt2sas_transport_add_host_phy(ioc, &ioc->sas_hba.phy[i],
		    phy_pg0, ioc->sas_hba.parent_dev);
	}
	if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
4146
	    MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, ioc->sas_hba.handle))) {
E
Eric Moore 已提交
4147 4148 4149 4150 4151 4152 4153 4154 4155 4156 4157 4158 4159 4160 4161 4162 4163 4164 4165 4166 4167 4168 4169 4170 4171 4172 4173 4174 4175 4176 4177 4178 4179 4180 4181 4182 4183 4184 4185 4186 4187 4188 4189 4190 4191 4192
		printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
		    ioc->name, __FILE__, __LINE__, __func__);
		goto out;
	}
	ioc->sas_hba.enclosure_handle =
	    le16_to_cpu(sas_device_pg0.EnclosureHandle);
	ioc->sas_hba.sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
	printk(MPT2SAS_INFO_FMT "host_add: handle(0x%04x), "
	    "sas_addr(0x%016llx), phys(%d)\n", ioc->name, ioc->sas_hba.handle,
	    (unsigned long long) ioc->sas_hba.sas_address,
	    ioc->sas_hba.num_phys) ;

	if (ioc->sas_hba.enclosure_handle) {
		if (!(mpt2sas_config_get_enclosure_pg0(ioc, &mpi_reply,
		    &enclosure_pg0,
		   MPI2_SAS_ENCLOS_PGAD_FORM_HANDLE,
		   ioc->sas_hba.enclosure_handle))) {
			ioc->sas_hba.enclosure_logical_id =
			    le64_to_cpu(enclosure_pg0.EnclosureLogicalID);
		}
	}

 out:
	kfree(sas_iounit_pg1);
	kfree(sas_iounit_pg0);
}

/**
 * _scsih_expander_add -  creating expander object
 * @ioc: per adapter object
 * @handle: expander handle
 *
 * Creating expander object, stored in ioc->sas_expander_list.
 *
 * Return 0 for success, else error.
 */
static int
_scsih_expander_add(struct MPT2SAS_ADAPTER *ioc, u16 handle)
{
	struct _sas_node *sas_expander;
	Mpi2ConfigReply_t mpi_reply;
	Mpi2ExpanderPage0_t expander_pg0;
	Mpi2ExpanderPage1_t expander_pg1;
	Mpi2SasEnclosurePage0_t enclosure_pg0;
	u32 ioc_status;
	u16 parent_handle;
4193
	__le64 sas_address, sas_address_parent = 0;
E
Eric Moore 已提交
4194 4195
	int i;
	unsigned long flags;
4196
	struct _sas_port *mpt2sas_port = NULL;
E
Eric Moore 已提交
4197 4198 4199 4200 4201
	int rc = 0;

	if (!handle)
		return -1;

4202
	if (ioc->shost_recovery || ioc->pci_error_recovery)
4203 4204
		return -1;

E
Eric Moore 已提交
4205 4206 4207 4208 4209 4210 4211 4212 4213 4214 4215 4216 4217 4218 4219 4220 4221
	if ((mpt2sas_config_get_expander_pg0(ioc, &mpi_reply, &expander_pg0,
	    MPI2_SAS_EXPAND_PGAD_FORM_HNDL, handle))) {
		printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
		    ioc->name, __FILE__, __LINE__, __func__);
		return -1;
	}

	ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
	    MPI2_IOCSTATUS_MASK;
	if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
		printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
		    ioc->name, __FILE__, __LINE__, __func__);
		return -1;
	}

	/* handle out of order topology events */
	parent_handle = le16_to_cpu(expander_pg0.ParentDevHandle);
4222 4223 4224 4225 4226 4227 4228
	if (_scsih_get_sas_address(ioc, parent_handle, &sas_address_parent)
	    != 0) {
		printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
		    ioc->name, __FILE__, __LINE__, __func__);
		return -1;
	}
	if (sas_address_parent != ioc->sas_hba.sas_address) {
E
Eric Moore 已提交
4229
		spin_lock_irqsave(&ioc->sas_node_lock, flags);
4230 4231
		sas_expander = mpt2sas_scsih_expander_find_by_sas_address(ioc,
		    sas_address_parent);
E
Eric Moore 已提交
4232 4233 4234 4235 4236 4237 4238 4239 4240
		spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
		if (!sas_expander) {
			rc = _scsih_expander_add(ioc, parent_handle);
			if (rc != 0)
				return rc;
		}
	}

	spin_lock_irqsave(&ioc->sas_node_lock, flags);
4241
	sas_address = le64_to_cpu(expander_pg0.SASAddress);
E
Eric Moore 已提交
4242 4243 4244 4245 4246 4247 4248 4249 4250 4251 4252 4253 4254 4255 4256 4257 4258
	sas_expander = mpt2sas_scsih_expander_find_by_sas_address(ioc,
	    sas_address);
	spin_unlock_irqrestore(&ioc->sas_node_lock, flags);

	if (sas_expander)
		return 0;

	sas_expander = kzalloc(sizeof(struct _sas_node),
	    GFP_KERNEL);
	if (!sas_expander) {
		printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
		    ioc->name, __FILE__, __LINE__, __func__);
		return -1;
	}

	sas_expander->handle = handle;
	sas_expander->num_phys = expander_pg0.NumPhys;
4259
	sas_expander->sas_address_parent = sas_address_parent;
E
Eric Moore 已提交
4260 4261 4262 4263
	sas_expander->sas_address = sas_address;

	printk(MPT2SAS_INFO_FMT "expander_add: handle(0x%04x),"
	    " parent(0x%04x), sas_addr(0x%016llx), phys(%d)\n", ioc->name,
4264
	    handle, parent_handle, (unsigned long long)
E
Eric Moore 已提交
4265 4266 4267 4268 4269 4270 4271 4272 4273 4274 4275 4276 4277 4278 4279
	    sas_expander->sas_address, sas_expander->num_phys);

	if (!sas_expander->num_phys)
		goto out_fail;
	sas_expander->phy = kcalloc(sas_expander->num_phys,
	    sizeof(struct _sas_phy), GFP_KERNEL);
	if (!sas_expander->phy) {
		printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
		    ioc->name, __FILE__, __LINE__, __func__);
		rc = -1;
		goto out_fail;
	}

	INIT_LIST_HEAD(&sas_expander->sas_port_list);
	mpt2sas_port = mpt2sas_transport_port_add(ioc, handle,
4280
	    sas_address_parent);
E
Eric Moore 已提交
4281 4282 4283 4284 4285 4286 4287 4288 4289 4290 4291 4292 4293
	if (!mpt2sas_port) {
		printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
		    ioc->name, __FILE__, __LINE__, __func__);
		rc = -1;
		goto out_fail;
	}
	sas_expander->parent_dev = &mpt2sas_port->rphy->dev;

	for (i = 0 ; i < sas_expander->num_phys ; i++) {
		if ((mpt2sas_config_get_expander_pg1(ioc, &mpi_reply,
		    &expander_pg1, i, handle))) {
			printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
			    ioc->name, __FILE__, __LINE__, __func__);
4294 4295
			rc = -1;
			goto out_fail;
E
Eric Moore 已提交
4296 4297 4298
		}
		sas_expander->phy[i].handle = handle;
		sas_expander->phy[i].phy_id = i;
4299 4300 4301 4302 4303 4304 4305 4306 4307

		if ((mpt2sas_transport_add_expander_phy(ioc,
		    &sas_expander->phy[i], expander_pg1,
		    sas_expander->parent_dev))) {
			printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
			    ioc->name, __FILE__, __LINE__, __func__);
			rc = -1;
			goto out_fail;
		}
E
Eric Moore 已提交
4308 4309 4310 4311 4312 4313 4314 4315 4316 4317 4318 4319 4320 4321 4322 4323
	}

	if (sas_expander->enclosure_handle) {
		if (!(mpt2sas_config_get_enclosure_pg0(ioc, &mpi_reply,
		    &enclosure_pg0, MPI2_SAS_ENCLOS_PGAD_FORM_HANDLE,
		   sas_expander->enclosure_handle))) {
			sas_expander->enclosure_logical_id =
			    le64_to_cpu(enclosure_pg0.EnclosureLogicalID);
		}
	}

	_scsih_expander_node_add(ioc, sas_expander);
	 return 0;

 out_fail:

4324 4325
	if (mpt2sas_port)
		mpt2sas_transport_port_remove(ioc, sas_expander->sas_address,
4326
		    sas_address_parent);
E
Eric Moore 已提交
4327 4328 4329 4330
	kfree(sas_expander);
	return rc;
}

4331 4332 4333 4334 4335 4336 4337 4338 4339 4340 4341 4342 4343 4344 4345 4346 4347 4348 4349 4350 4351 4352 4353 4354 4355 4356 4357 4358 4359 4360 4361 4362 4363 4364
/**
 * _scsih_done -  scsih callback handler.
 * @ioc: per adapter object
 * @smid: system request message index
 * @msix_index: MSIX table index supplied by the OS
 * @reply: reply message frame(lower 32bit addr)
 *
 * Callback handler when sending internal generated message frames.
 * The callback index passed is `ioc->scsih_cb_idx`
 *
 * Return 1 meaning mf should be freed from _base_interrupt
 *        0 means the mf is freed from this function.
 */
static u8
_scsih_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 msix_index, u32 reply)
{
	MPI2DefaultReply_t *mpi_reply;

	mpi_reply =  mpt2sas_base_get_reply_virt_addr(ioc, reply);
	if (ioc->scsih_cmds.status == MPT2_CMD_NOT_USED)
		return 1;
	if (ioc->scsih_cmds.smid != smid)
		return 1;
	ioc->scsih_cmds.status |= MPT2_CMD_COMPLETE;
	if (mpi_reply) {
		memcpy(ioc->scsih_cmds.reply, mpi_reply,
		    mpi_reply->MsgLength*4);
		ioc->scsih_cmds.status |= MPT2_CMD_REPLY_VALID;
	}
	ioc->scsih_cmds.status &= ~MPT2_CMD_PENDING;
	complete(&ioc->scsih_cmds.done);
	return 1;
}

E
Eric Moore 已提交
4365
/**
4366
 * mpt2sas_expander_remove - removing expander object
E
Eric Moore 已提交
4367
 * @ioc: per adapter object
4368
 * @sas_address: expander sas_address
E
Eric Moore 已提交
4369 4370 4371
 *
 * Return nothing.
 */
4372 4373
void
mpt2sas_expander_remove(struct MPT2SAS_ADAPTER *ioc, u64 sas_address)
E
Eric Moore 已提交
4374 4375 4376 4377
{
	struct _sas_node *sas_expander;
	unsigned long flags;

4378 4379 4380
	if (ioc->shost_recovery)
		return;

E
Eric Moore 已提交
4381
	spin_lock_irqsave(&ioc->sas_node_lock, flags);
4382 4383
	sas_expander = mpt2sas_scsih_expander_find_by_sas_address(ioc,
	    sas_address);
4384 4385 4386 4387 4388
	if (!sas_expander) {
		spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
		return;
	}
	list_del(&sas_expander->list);
E
Eric Moore 已提交
4389 4390 4391 4392
	spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
	_scsih_expander_node_remove(ioc, sas_expander);
}

4393 4394 4395 4396 4397 4398 4399 4400 4401 4402 4403 4404 4405 4406 4407 4408 4409 4410 4411 4412 4413 4414 4415 4416 4417 4418 4419 4420 4421 4422 4423 4424 4425 4426 4427 4428 4429 4430 4431 4432 4433 4434 4435 4436 4437 4438 4439 4440 4441 4442 4443 4444 4445 4446 4447 4448 4449 4450 4451 4452 4453 4454 4455 4456 4457 4458 4459 4460 4461 4462 4463 4464 4465 4466 4467 4468 4469 4470 4471 4472 4473 4474 4475 4476 4477 4478 4479 4480 4481 4482 4483 4484 4485 4486 4487 4488 4489 4490 4491 4492 4493 4494 4495 4496 4497 4498 4499 4500 4501 4502 4503 4504 4505 4506 4507 4508 4509 4510 4511 4512 4513 4514 4515 4516 4517 4518 4519 4520
/**
 * _scsih_check_access_status - check access flags
 * @ioc: per adapter object
 * @sas_address: sas address
 * @handle: sas device handle
 * @access_flags: errors returned during discovery of the device
 *
 * Return 0 for success, else failure
 */
static u8
_scsih_check_access_status(struct MPT2SAS_ADAPTER *ioc, u64 sas_address,
   u16 handle, u8 access_status)
{
	u8 rc = 1;
	char *desc = NULL;

	switch (access_status) {
	case MPI2_SAS_DEVICE0_ASTATUS_NO_ERRORS:
	case MPI2_SAS_DEVICE0_ASTATUS_SATA_NEEDS_INITIALIZATION:
		rc = 0;
		break;
	case MPI2_SAS_DEVICE0_ASTATUS_SATA_CAPABILITY_FAILED:
		desc = "sata capability failed";
		break;
	case MPI2_SAS_DEVICE0_ASTATUS_SATA_AFFILIATION_CONFLICT:
		desc = "sata affiliation conflict";
		break;
	case MPI2_SAS_DEVICE0_ASTATUS_ROUTE_NOT_ADDRESSABLE:
		desc = "route not addressable";
		break;
	case MPI2_SAS_DEVICE0_ASTATUS_SMP_ERROR_NOT_ADDRESSABLE:
		desc = "smp error not addressable";
		break;
	case MPI2_SAS_DEVICE0_ASTATUS_DEVICE_BLOCKED:
		desc = "device blocked";
		break;
	case MPI2_SAS_DEVICE0_ASTATUS_SATA_INIT_FAILED:
	case MPI2_SAS_DEVICE0_ASTATUS_SIF_UNKNOWN:
	case MPI2_SAS_DEVICE0_ASTATUS_SIF_AFFILIATION_CONFLICT:
	case MPI2_SAS_DEVICE0_ASTATUS_SIF_DIAG:
	case MPI2_SAS_DEVICE0_ASTATUS_SIF_IDENTIFICATION:
	case MPI2_SAS_DEVICE0_ASTATUS_SIF_CHECK_POWER:
	case MPI2_SAS_DEVICE0_ASTATUS_SIF_PIO_SN:
	case MPI2_SAS_DEVICE0_ASTATUS_SIF_MDMA_SN:
	case MPI2_SAS_DEVICE0_ASTATUS_SIF_UDMA_SN:
	case MPI2_SAS_DEVICE0_ASTATUS_SIF_ZONING_VIOLATION:
	case MPI2_SAS_DEVICE0_ASTATUS_SIF_NOT_ADDRESSABLE:
	case MPI2_SAS_DEVICE0_ASTATUS_SIF_MAX:
		desc = "sata initialization failed";
		break;
	default:
		desc = "unknown";
		break;
	}

	if (!rc)
		return 0;

	printk(MPT2SAS_ERR_FMT "discovery errors(%s): sas_address(0x%016llx), "
	    "handle(0x%04x)\n", ioc->name, desc,
	    (unsigned long long)sas_address, handle);
	return rc;
}

static void
_scsih_check_device(struct MPT2SAS_ADAPTER *ioc, u16 handle)
{
	Mpi2ConfigReply_t mpi_reply;
	Mpi2SasDevicePage0_t sas_device_pg0;
	struct _sas_device *sas_device;
	u32 ioc_status;
	unsigned long flags;
	u64 sas_address;
	struct scsi_target *starget;
	struct MPT2SAS_TARGET *sas_target_priv_data;
	u32 device_info;

	if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
	    MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle)))
		return;

	ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & MPI2_IOCSTATUS_MASK;
	if (ioc_status != MPI2_IOCSTATUS_SUCCESS)
		return;

	/* check if this is end device */
	device_info = le32_to_cpu(sas_device_pg0.DeviceInfo);
	if (!(_scsih_is_end_device(device_info)))
		return;

	spin_lock_irqsave(&ioc->sas_device_lock, flags);
	sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
	sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
	    sas_address);

	if (!sas_device) {
		printk(MPT2SAS_ERR_FMT "device is not present "
		    "handle(0x%04x), no sas_device!!!\n", ioc->name, handle);
		spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
		return;
	}

	if (unlikely(sas_device->handle != handle)) {
		starget = sas_device->starget;
		sas_target_priv_data = starget->hostdata;
		starget_printk(KERN_INFO, starget, "handle changed from(0x%04x)"
		   " to (0x%04x)!!!\n", sas_device->handle, handle);
		sas_target_priv_data->handle = handle;
		sas_device->handle = handle;
	}
	spin_unlock_irqrestore(&ioc->sas_device_lock, flags);

	/* check if device is present */
	if (!(le16_to_cpu(sas_device_pg0.Flags) &
	    MPI2_SAS_DEVICE0_FLAGS_DEVICE_PRESENT)) {
		printk(MPT2SAS_ERR_FMT "device is not present "
		    "handle(0x%04x), flags!!!\n", ioc->name, handle);
		return;
	}

	/* check if there were any issues with discovery */
	if (_scsih_check_access_status(ioc, sas_address, handle,
	    sas_device_pg0.AccessStatus))
		return;
	_scsih_ublock_io_device(ioc, handle);

}

E
Eric Moore 已提交
4521 4522 4523 4524 4525 4526 4527 4528 4529 4530 4531 4532 4533 4534 4535 4536 4537 4538 4539 4540 4541 4542 4543 4544 4545 4546 4547 4548 4549 4550 4551 4552 4553 4554 4555 4556 4557 4558
/**
 * _scsih_add_device -  creating sas device object
 * @ioc: per adapter object
 * @handle: sas device handle
 * @phy_num: phy number end device attached to
 * @is_pd: is this hidden raid component
 *
 * Creating end device object, stored in ioc->sas_device_list.
 *
 * Returns 0 for success, non-zero for failure.
 */
static int
_scsih_add_device(struct MPT2SAS_ADAPTER *ioc, u16 handle, u8 phy_num, u8 is_pd)
{
	Mpi2ConfigReply_t mpi_reply;
	Mpi2SasDevicePage0_t sas_device_pg0;
	Mpi2SasEnclosurePage0_t enclosure_pg0;
	struct _sas_device *sas_device;
	u32 ioc_status;
	__le64 sas_address;
	u32 device_info;
	unsigned long flags;

	if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
	    MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) {
		printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
		    ioc->name, __FILE__, __LINE__, __func__);
		return -1;
	}

	ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
	    MPI2_IOCSTATUS_MASK;
	if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
		printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
		    ioc->name, __FILE__, __LINE__, __func__);
		return -1;
	}

4559 4560
	sas_address = le64_to_cpu(sas_device_pg0.SASAddress);

E
Eric Moore 已提交
4561 4562 4563 4564 4565 4566 4567 4568 4569 4570
	/* check if device is present */
	if (!(le16_to_cpu(sas_device_pg0.Flags) &
	    MPI2_SAS_DEVICE0_FLAGS_DEVICE_PRESENT)) {
		printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
		    ioc->name, __FILE__, __LINE__, __func__);
		printk(MPT2SAS_ERR_FMT "Flags = 0x%04x\n",
		    ioc->name, le16_to_cpu(sas_device_pg0.Flags));
		return -1;
	}

4571 4572 4573
	/* check if there were any issues with discovery */
	if (_scsih_check_access_status(ioc, sas_address, handle,
	    sas_device_pg0.AccessStatus))
E
Eric Moore 已提交
4574 4575 4576 4577 4578 4579 4580 4581 4582 4583 4584 4585 4586 4587 4588 4589
		return -1;

	/* check if this is end device */
	device_info = le32_to_cpu(sas_device_pg0.DeviceInfo);
	if (!(_scsih_is_end_device(device_info))) {
		printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
		    ioc->name, __FILE__, __LINE__, __func__);
		return -1;
	}


	spin_lock_irqsave(&ioc->sas_device_lock, flags);
	sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
	    sas_address);
	spin_unlock_irqrestore(&ioc->sas_device_lock, flags);

4590
	if (sas_device)
E
Eric Moore 已提交
4591 4592 4593 4594 4595 4596 4597 4598 4599 4600 4601
		return 0;

	sas_device = kzalloc(sizeof(struct _sas_device),
	    GFP_KERNEL);
	if (!sas_device) {
		printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
		    ioc->name, __FILE__, __LINE__, __func__);
		return -1;
	}

	sas_device->handle = handle;
4602 4603 4604 4605 4606
	if (_scsih_get_sas_address(ioc, le16_to_cpu
		(sas_device_pg0.ParentDevHandle),
		&sas_device->sas_address_parent) != 0)
		printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
		    ioc->name, __FILE__, __LINE__, __func__);
E
Eric Moore 已提交
4607 4608 4609 4610 4611 4612
	sas_device->enclosure_handle =
	    le16_to_cpu(sas_device_pg0.EnclosureHandle);
	sas_device->slot =
	    le16_to_cpu(sas_device_pg0.Slot);
	sas_device->device_info = device_info;
	sas_device->sas_address = sas_address;
4613
	sas_device->phy = sas_device_pg0.PhyNum;
E
Eric Moore 已提交
4614 4615

	/* get enclosure_logical_id */
4616 4617 4618
	if (sas_device->enclosure_handle && !(mpt2sas_config_get_enclosure_pg0(
	   ioc, &mpi_reply, &enclosure_pg0, MPI2_SAS_ENCLOS_PGAD_FORM_HANDLE,
	   sas_device->enclosure_handle)))
E
Eric Moore 已提交
4619 4620 4621 4622 4623 4624 4625 4626 4627 4628 4629 4630 4631 4632
		sas_device->enclosure_logical_id =
		    le64_to_cpu(enclosure_pg0.EnclosureLogicalID);

	/* get device name */
	sas_device->device_name = le64_to_cpu(sas_device_pg0.DeviceName);

	if (ioc->wait_for_port_enable_to_complete)
		_scsih_sas_device_init_add(ioc, sas_device);
	else
		_scsih_sas_device_add(ioc, sas_device);

	return 0;
}

4633 4634 4635 4636 4637 4638 4639 4640 4641 4642 4643 4644 4645
/**
 * _scsih_remove_device -  removing sas device object
 * @ioc: per adapter object
 * @sas_device_delete: the sas_device object
 *
 * Return nothing.
 */
static void
_scsih_remove_device(struct MPT2SAS_ADAPTER *ioc,
    struct _sas_device *sas_device)
{
	struct _sas_device sas_device_backup;
	struct MPT2SAS_TARGET *sas_target_priv_data;
4646

4647 4648 4649 4650 4651
	if (!sas_device)
		return;

	memcpy(&sas_device_backup, sas_device, sizeof(struct _sas_device));
	_scsih_sas_device_remove(ioc, sas_device);
4652

4653 4654 4655 4656 4657 4658 4659 4660 4661 4662 4663 4664 4665 4666
	dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: enter: "
	    "handle(0x%04x), sas_addr(0x%016llx)\n", ioc->name, __func__,
	    sas_device_backup.handle, (unsigned long long)
	    sas_device_backup.sas_address));

	if (sas_device_backup.starget && sas_device_backup.starget->hostdata) {
		sas_target_priv_data = sas_device_backup.starget->hostdata;
		sas_target_priv_data->deleted = 1;
	}

	_scsih_ublock_io_device(ioc, sas_device_backup.handle);

	mpt2sas_transport_port_remove(ioc, sas_device_backup.sas_address,
	    sas_device_backup.sas_address_parent);
E
Eric Moore 已提交
4667 4668

	printk(MPT2SAS_INFO_FMT "removing handle(0x%04x), sas_addr"
4669 4670
	    "(0x%016llx)\n", ioc->name, sas_device_backup.handle,
	    (unsigned long long) sas_device_backup.sas_address);
E
Eric Moore 已提交
4671

4672 4673 4674 4675
	dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: exit: "
	    "handle(0x%04x), sas_addr(0x%016llx)\n", ioc->name, __func__,
	    sas_device_backup.handle, (unsigned long long)
	    sas_device_backup.sas_address));
E
Eric Moore 已提交
4676 4677
}

4678 4679 4680 4681 4682 4683 4684 4685 4686 4687 4688 4689 4690 4691 4692 4693 4694 4695 4696 4697 4698 4699 4700 4701 4702 4703 4704
/**
 * mpt2sas_device_remove - removing device object
 * @ioc: per adapter object
 * @sas_address: expander sas_address
 *
 * Return nothing.
 */
void
mpt2sas_device_remove(struct MPT2SAS_ADAPTER *ioc, u64 sas_address)
{
	struct _sas_device *sas_device;
	unsigned long flags;

	if (ioc->shost_recovery)
		return;

	spin_lock_irqsave(&ioc->sas_device_lock, flags);
	sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
	    sas_address);
	if (!sas_device) {
		spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
		return;
	}
	spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
	_scsih_remove_device(ioc, sas_device);
}

E
Eric Moore 已提交
4705 4706 4707 4708 4709 4710 4711 4712 4713 4714 4715 4716 4717 4718 4719 4720
#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
/**
 * _scsih_sas_topology_change_event_debug - debug for topology event
 * @ioc: per adapter object
 * @event_data: event data payload
 * Context: user.
 */
static void
_scsih_sas_topology_change_event_debug(struct MPT2SAS_ADAPTER *ioc,
    Mpi2EventDataSasTopologyChangeList_t *event_data)
{
	int i;
	u16 handle;
	u16 reason_code;
	u8 phy_number;
	char *status_str = NULL;
4721
	u8 link_rate, prev_link_rate;
E
Eric Moore 已提交
4722 4723 4724 4725 4726 4727 4728 4729 4730

	switch (event_data->ExpStatus) {
	case MPI2_EVENT_SAS_TOPO_ES_ADDED:
		status_str = "add";
		break;
	case MPI2_EVENT_SAS_TOPO_ES_NOT_RESPONDING:
		status_str = "remove";
		break;
	case MPI2_EVENT_SAS_TOPO_ES_RESPONDING:
4731
	case 0:
E
Eric Moore 已提交
4732 4733 4734 4735 4736 4737 4738 4739 4740
		status_str =  "responding";
		break;
	case MPI2_EVENT_SAS_TOPO_ES_DELAY_NOT_RESPONDING:
		status_str = "remove delay";
		break;
	default:
		status_str = "unknown status";
		break;
	}
4741
	printk(MPT2SAS_INFO_FMT "sas topology change: (%s)\n",
E
Eric Moore 已提交
4742
	    ioc->name, status_str);
4743
	printk(KERN_INFO "\thandle(0x%04x), enclosure_handle(0x%04x) "
E
Eric Moore 已提交
4744 4745 4746 4747 4748 4749 4750 4751 4752 4753 4754 4755 4756
	    "start_phy(%02d), count(%d)\n",
	    le16_to_cpu(event_data->ExpanderDevHandle),
	    le16_to_cpu(event_data->EnclosureHandle),
	    event_data->StartPhyNum, event_data->NumEntries);
	for (i = 0; i < event_data->NumEntries; i++) {
		handle = le16_to_cpu(event_data->PHY[i].AttachedDevHandle);
		if (!handle)
			continue;
		phy_number = event_data->StartPhyNum + i;
		reason_code = event_data->PHY[i].PhyStatus &
		    MPI2_EVENT_SAS_TOPO_RC_MASK;
		switch (reason_code) {
		case MPI2_EVENT_SAS_TOPO_RC_TARG_ADDED:
4757
			status_str = "target add";
E
Eric Moore 已提交
4758 4759
			break;
		case MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING:
4760
			status_str = "target remove";
E
Eric Moore 已提交
4761 4762
			break;
		case MPI2_EVENT_SAS_TOPO_RC_DELAY_NOT_RESPONDING:
4763
			status_str = "delay target remove";
E
Eric Moore 已提交
4764 4765
			break;
		case MPI2_EVENT_SAS_TOPO_RC_PHY_CHANGED:
4766
			status_str = "link rate change";
E
Eric Moore 已提交
4767 4768
			break;
		case MPI2_EVENT_SAS_TOPO_RC_NO_CHANGE:
4769
			status_str = "target responding";
E
Eric Moore 已提交
4770 4771
			break;
		default:
4772
			status_str = "unknown";
E
Eric Moore 已提交
4773 4774
			break;
		}
4775 4776
		link_rate = event_data->PHY[i].LinkRate >> 4;
		prev_link_rate = event_data->PHY[i].LinkRate & 0xF;
4777
		printk(KERN_INFO "\tphy(%02d), attached_handle(0x%04x): %s:"
4778 4779 4780
		    " link rate: new(0x%02x), old(0x%02x)\n", phy_number,
		    handle, status_str, link_rate, prev_link_rate);

E
Eric Moore 已提交
4781 4782 4783 4784 4785 4786 4787
	}
}
#endif

/**
 * _scsih_sas_topology_change_event - handle topology changes
 * @ioc: per adapter object
4788
 * @fw_event: The fw_event_work object
E
Eric Moore 已提交
4789 4790 4791 4792
 * Context: user.
 *
 */
static void
4793
_scsih_sas_topology_change_event(struct MPT2SAS_ADAPTER *ioc,
E
Eric Moore 已提交
4794 4795 4796 4797 4798
    struct fw_event_work *fw_event)
{
	int i;
	u16 parent_handle, handle;
	u16 reason_code;
4799
	u8 phy_number, max_phys;
E
Eric Moore 已提交
4800
	struct _sas_node *sas_expander;
4801 4802
	struct _sas_device *sas_device;
	u64 sas_address;
E
Eric Moore 已提交
4803
	unsigned long flags;
4804
	u8 link_rate, prev_link_rate;
4805
	Mpi2EventDataSasTopologyChangeList_t *event_data = fw_event->event_data;
E
Eric Moore 已提交
4806 4807 4808 4809 4810 4811

#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
	if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
		_scsih_sas_topology_change_event_debug(ioc, event_data);
#endif

4812
	if (ioc->shost_recovery || ioc->remove_host || ioc->pci_error_recovery)
4813 4814
		return;

E
Eric Moore 已提交
4815 4816 4817
	if (!ioc->sas_hba.num_phys)
		_scsih_sas_host_add(ioc);
	else
4818
		_scsih_sas_host_refresh(ioc);
E
Eric Moore 已提交
4819 4820

	if (fw_event->ignore) {
4821
		dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "ignoring expander "
E
Eric Moore 已提交
4822 4823 4824 4825 4826 4827 4828 4829 4830 4831 4832
		    "event\n", ioc->name));
		return;
	}

	parent_handle = le16_to_cpu(event_data->ExpanderDevHandle);

	/* handle expander add */
	if (event_data->ExpStatus == MPI2_EVENT_SAS_TOPO_ES_ADDED)
		if (_scsih_expander_add(ioc, parent_handle) != 0)
			return;

4833 4834 4835 4836
	spin_lock_irqsave(&ioc->sas_node_lock, flags);
	sas_expander = mpt2sas_scsih_expander_find_by_handle(ioc,
	    parent_handle);
	spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
4837
	if (sas_expander) {
4838
		sas_address = sas_expander->sas_address;
4839 4840
		max_phys = sas_expander->num_phys;
	} else if (parent_handle < ioc->sas_hba.num_phys) {
4841
		sas_address = ioc->sas_hba.sas_address;
4842 4843
		max_phys = ioc->sas_hba.num_phys;
	} else
4844 4845
		return;

E
Eric Moore 已提交
4846 4847 4848
	/* handle siblings events */
	for (i = 0; i < event_data->NumEntries; i++) {
		if (fw_event->ignore) {
4849
			dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "ignoring "
E
Eric Moore 已提交
4850 4851 4852
			    "expander event\n", ioc->name));
			return;
		}
4853 4854
		if (ioc->shost_recovery || ioc->remove_host ||
		    ioc->pci_error_recovery)
4855
			return;
4856
		phy_number = event_data->StartPhyNum + i;
4857 4858
		if (phy_number >= max_phys)
			continue;
4859 4860 4861 4862 4863
		reason_code = event_data->PHY[i].PhyStatus &
		    MPI2_EVENT_SAS_TOPO_RC_MASK;
		if ((event_data->PHY[i].PhyStatus &
		    MPI2_EVENT_SAS_TOPO_PHYSTATUS_VACANT) && (reason_code !=
		    MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING))
E
Eric Moore 已提交
4864 4865 4866 4867
			continue;
		handle = le16_to_cpu(event_data->PHY[i].AttachedDevHandle);
		if (!handle)
			continue;
4868
		link_rate = event_data->PHY[i].LinkRate >> 4;
4869
		prev_link_rate = event_data->PHY[i].LinkRate & 0xF;
E
Eric Moore 已提交
4870 4871
		switch (reason_code) {
		case MPI2_EVENT_SAS_TOPO_RC_PHY_CHANGED:
4872 4873 4874 4875 4876 4877 4878

			if (link_rate == prev_link_rate)
				break;

			mpt2sas_transport_update_links(ioc, sas_address,
			    handle, phy_number, link_rate);

4879 4880 4881 4882
			if (link_rate < MPI2_SAS_NEG_LINK_RATE_1_5)
				break;

			_scsih_check_device(ioc, handle);
4883
			break;
E
Eric Moore 已提交
4884
		case MPI2_EVENT_SAS_TOPO_RC_TARG_ADDED:
4885 4886 4887 4888

			mpt2sas_transport_update_links(ioc, sas_address,
			    handle, phy_number, link_rate);

4889
			_scsih_add_device(ioc, handle, phy_number, 0);
E
Eric Moore 已提交
4890 4891
			break;
		case MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING:
4892 4893 4894 4895 4896 4897 4898 4899 4900 4901 4902

			spin_lock_irqsave(&ioc->sas_device_lock, flags);
			sas_device = _scsih_sas_device_find_by_handle(ioc,
			    handle);
			if (!sas_device) {
				spin_unlock_irqrestore(&ioc->sas_device_lock,
				    flags);
				break;
			}
			spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
			_scsih_remove_device(ioc, sas_device);
E
Eric Moore 已提交
4903 4904 4905 4906 4907
			break;
		}
	}

	/* handle expander removal */
4908 4909
	if (event_data->ExpStatus == MPI2_EVENT_SAS_TOPO_ES_NOT_RESPONDING &&
	    sas_expander)
4910
		mpt2sas_expander_remove(ioc, sas_address);
E
Eric Moore 已提交
4911 4912 4913 4914 4915 4916 4917 4918 4919 4920 4921 4922 4923 4924 4925 4926 4927 4928 4929 4930 4931 4932 4933 4934 4935 4936 4937 4938 4939 4940 4941 4942 4943 4944 4945 4946 4947 4948 4949 4950 4951 4952 4953 4954 4955 4956 4957 4958 4959 4960 4961

}

#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
/**
 * _scsih_sas_device_status_change_event_debug - debug for device event
 * @event_data: event data payload
 * Context: user.
 *
 * Return nothing.
 */
static void
_scsih_sas_device_status_change_event_debug(struct MPT2SAS_ADAPTER *ioc,
    Mpi2EventDataSasDeviceStatusChange_t *event_data)
{
	char *reason_str = NULL;

	switch (event_data->ReasonCode) {
	case MPI2_EVENT_SAS_DEV_STAT_RC_SMART_DATA:
		reason_str = "smart data";
		break;
	case MPI2_EVENT_SAS_DEV_STAT_RC_UNSUPPORTED:
		reason_str = "unsupported device discovered";
		break;
	case MPI2_EVENT_SAS_DEV_STAT_RC_INTERNAL_DEVICE_RESET:
		reason_str = "internal device reset";
		break;
	case MPI2_EVENT_SAS_DEV_STAT_RC_TASK_ABORT_INTERNAL:
		reason_str = "internal task abort";
		break;
	case MPI2_EVENT_SAS_DEV_STAT_RC_ABORT_TASK_SET_INTERNAL:
		reason_str = "internal task abort set";
		break;
	case MPI2_EVENT_SAS_DEV_STAT_RC_CLEAR_TASK_SET_INTERNAL:
		reason_str = "internal clear task set";
		break;
	case MPI2_EVENT_SAS_DEV_STAT_RC_QUERY_TASK_INTERNAL:
		reason_str = "internal query task";
		break;
	case MPI2_EVENT_SAS_DEV_STAT_RC_SATA_INIT_FAILURE:
		reason_str = "sata init failure";
		break;
	case MPI2_EVENT_SAS_DEV_STAT_RC_CMP_INTERNAL_DEV_RESET:
		reason_str = "internal device reset complete";
		break;
	case MPI2_EVENT_SAS_DEV_STAT_RC_CMP_TASK_ABORT_INTERNAL:
		reason_str = "internal task abort complete";
		break;
	case MPI2_EVENT_SAS_DEV_STAT_RC_ASYNC_NOTIFICATION:
		reason_str = "internal async notification";
		break;
4962 4963 4964 4965 4966 4967
	case MPI2_EVENT_SAS_DEV_STAT_RC_EXPANDER_REDUCED_FUNCTIONALITY:
		reason_str = "expander reduced functionality";
		break;
	case MPI2_EVENT_SAS_DEV_STAT_RC_CMP_EXPANDER_REDUCED_FUNCTIONALITY:
		reason_str = "expander reduced functionality complete";
		break;
E
Eric Moore 已提交
4968 4969 4970 4971
	default:
		reason_str = "unknown reason";
		break;
	}
4972
	printk(MPT2SAS_INFO_FMT "device status change: (%s)\n"
E
Eric Moore 已提交
4973 4974 4975 4976
	    "\thandle(0x%04x), sas address(0x%016llx)", ioc->name,
	    reason_str, le16_to_cpu(event_data->DevHandle),
	    (unsigned long long)le64_to_cpu(event_data->SASAddress));
	if (event_data->ReasonCode == MPI2_EVENT_SAS_DEV_STAT_RC_SMART_DATA)
4977
		printk(MPT2SAS_INFO_FMT ", ASC(0x%x), ASCQ(0x%x)\n", ioc->name,
E
Eric Moore 已提交
4978 4979 4980 4981 4982 4983 4984 4985
		    event_data->ASC, event_data->ASCQ);
	printk(KERN_INFO "\n");
}
#endif

/**
 * _scsih_sas_device_status_change_event - handle device status change
 * @ioc: per adapter object
4986
 * @fw_event: The fw_event_work object
E
Eric Moore 已提交
4987 4988 4989 4990 4991
 * Context: user.
 *
 * Return nothing.
 */
static void
4992 4993
_scsih_sas_device_status_change_event(struct MPT2SAS_ADAPTER *ioc,
    struct fw_event_work *fw_event)
E
Eric Moore 已提交
4994
{
4995 4996 4997 4998 4999 5000 5001
	struct MPT2SAS_TARGET *target_priv_data;
	struct _sas_device *sas_device;
	__le64 sas_address;
	unsigned long flags;
	Mpi2EventDataSasDeviceStatusChange_t *event_data =
	    fw_event->event_data;

E
Eric Moore 已提交
5002 5003
#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
	if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
5004
		_scsih_sas_device_status_change_event_debug(ioc,
5005
		     event_data);
E
Eric Moore 已提交
5006
#endif
5007

5008
	if (event_data->ReasonCode !=
5009
	    MPI2_EVENT_SAS_DEV_STAT_RC_INTERNAL_DEVICE_RESET &&
5010 5011
	   event_data->ReasonCode !=
	    MPI2_EVENT_SAS_DEV_STAT_RC_CMP_INTERNAL_DEV_RESET)
5012 5013 5014 5015 5016 5017 5018 5019 5020 5021 5022 5023 5024 5025 5026 5027 5028 5029 5030 5031
		return;

	spin_lock_irqsave(&ioc->sas_device_lock, flags);
	sas_address = le64_to_cpu(event_data->SASAddress);
	sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
	    sas_address);
	spin_unlock_irqrestore(&ioc->sas_device_lock, flags);

	if (!sas_device || !sas_device->starget)
		return;

	target_priv_data = sas_device->starget->hostdata;
	if (!target_priv_data)
		return;

	if (event_data->ReasonCode ==
	    MPI2_EVENT_SAS_DEV_STAT_RC_INTERNAL_DEVICE_RESET)
		target_priv_data->tm_busy = 1;
	else
		target_priv_data->tm_busy = 0;
E
Eric Moore 已提交
5032 5033 5034 5035 5036 5037 5038 5039 5040 5041 5042 5043 5044 5045 5046 5047 5048 5049 5050 5051 5052 5053 5054 5055 5056 5057 5058 5059 5060
}

#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
/**
 * _scsih_sas_enclosure_dev_status_change_event_debug - debug for enclosure event
 * @ioc: per adapter object
 * @event_data: event data payload
 * Context: user.
 *
 * Return nothing.
 */
static void
_scsih_sas_enclosure_dev_status_change_event_debug(struct MPT2SAS_ADAPTER *ioc,
    Mpi2EventDataSasEnclDevStatusChange_t *event_data)
{
	char *reason_str = NULL;

	switch (event_data->ReasonCode) {
	case MPI2_EVENT_SAS_ENCL_RC_ADDED:
		reason_str = "enclosure add";
		break;
	case MPI2_EVENT_SAS_ENCL_RC_NOT_RESPONDING:
		reason_str = "enclosure remove";
		break;
	default:
		reason_str = "unknown reason";
		break;
	}

5061
	printk(MPT2SAS_INFO_FMT "enclosure status change: (%s)\n"
E
Eric Moore 已提交
5062 5063 5064 5065 5066 5067 5068 5069 5070 5071 5072
	    "\thandle(0x%04x), enclosure logical id(0x%016llx)"
	    " number slots(%d)\n", ioc->name, reason_str,
	    le16_to_cpu(event_data->EnclosureHandle),
	    (unsigned long long)le64_to_cpu(event_data->EnclosureLogicalID),
	    le16_to_cpu(event_data->StartSlot));
}
#endif

/**
 * _scsih_sas_enclosure_dev_status_change_event - handle enclosure events
 * @ioc: per adapter object
5073
 * @fw_event: The fw_event_work object
E
Eric Moore 已提交
5074 5075 5076 5077 5078 5079
 * Context: user.
 *
 * Return nothing.
 */
static void
_scsih_sas_enclosure_dev_status_change_event(struct MPT2SAS_ADAPTER *ioc,
5080
    struct fw_event_work *fw_event)
E
Eric Moore 已提交
5081 5082 5083 5084
{
#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
	if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
		_scsih_sas_enclosure_dev_status_change_event_debug(ioc,
5085
		     fw_event->event_data);
E
Eric Moore 已提交
5086 5087 5088 5089 5090 5091
#endif
}

/**
 * _scsih_sas_broadcast_primative_event - handle broadcast events
 * @ioc: per adapter object
5092
 * @fw_event: The fw_event_work object
E
Eric Moore 已提交
5093 5094 5095 5096 5097
 * Context: user.
 *
 * Return nothing.
 */
static void
5098 5099
_scsih_sas_broadcast_primative_event(struct MPT2SAS_ADAPTER *ioc,
    struct fw_event_work *fw_event)
E
Eric Moore 已提交
5100 5101 5102 5103 5104 5105 5106 5107
{
	struct scsi_cmnd *scmd;
	u16 smid, handle;
	u32 lun;
	struct MPT2SAS_DEVICE *sas_device_priv_data;
	u32 termination_count;
	u32 query_count;
	Mpi2SCSITaskManagementReply_t *mpi_reply;
5108 5109 5110
#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
	Mpi2EventDataSasBroadcastPrimitive_t *event_data = fw_event->event_data;
#endif
5111
	u16 ioc_status;
5112
	dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "broadcast primative: "
E
Eric Moore 已提交
5113 5114
	    "phy number(%d), width(%d)\n", ioc->name, event_data->PhyNum,
	    event_data->PortWidth));
5115
	dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: enter\n", ioc->name,
E
Eric Moore 已提交
5116 5117 5118 5119 5120
	    __func__));

	termination_count = 0;
	query_count = 0;
	mpi_reply = ioc->tm_cmds.reply;
5121
	for (smid = 1; smid <= ioc->scsiio_depth; smid++) {
E
Eric Moore 已提交
5122 5123 5124 5125 5126 5127 5128 5129 5130 5131 5132 5133 5134 5135 5136 5137 5138 5139 5140
		scmd = _scsih_scsi_lookup_get(ioc, smid);
		if (!scmd)
			continue;
		sas_device_priv_data = scmd->device->hostdata;
		if (!sas_device_priv_data || !sas_device_priv_data->sas_target)
			continue;
		 /* skip hidden raid components */
		if (sas_device_priv_data->sas_target->flags &
		    MPT_TARGET_FLAGS_RAID_COMPONENT)
			continue;
		 /* skip volumes */
		if (sas_device_priv_data->sas_target->flags &
		    MPT_TARGET_FLAGS_VOLUME)
			continue;

		handle = sas_device_priv_data->sas_target->handle;
		lun = sas_device_priv_data->lun;
		query_count++;

5141 5142
		mpt2sas_scsih_issue_tm(ioc, handle, 0, 0, lun,
		    MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK, smid, 30, NULL);
5143
		ioc->tm_cmds.status = MPT2_CMD_NOT_USED;
5144 5145 5146
		ioc_status = le16_to_cpu(mpi_reply->IOCStatus)
		    & MPI2_IOCSTATUS_MASK;
		if ((ioc_status == MPI2_IOCSTATUS_SUCCESS) &&
E
Eric Moore 已提交
5147 5148 5149 5150 5151 5152
		    (mpi_reply->ResponseCode ==
		     MPI2_SCSITASKMGMT_RSP_TM_SUCCEEDED ||
		     mpi_reply->ResponseCode ==
		     MPI2_SCSITASKMGMT_RSP_IO_QUEUED_ON_IOC))
			continue;

5153 5154
		mpt2sas_scsih_issue_tm(ioc, handle, 0, 0, lun,
		    MPI2_SCSITASKMGMT_TASKTYPE_ABRT_TASK_SET, 0, 30, NULL);
E
Eric Moore 已提交
5155 5156 5157 5158
		termination_count += le32_to_cpu(mpi_reply->TerminationCount);
	}
	ioc->broadcast_aen_busy = 0;

5159
	dtmprintk(ioc, printk(MPT2SAS_INFO_FMT
E
Eric Moore 已提交
5160 5161 5162 5163 5164 5165 5166
	    "%s - exit, query_count = %d termination_count = %d\n",
	    ioc->name, __func__, query_count, termination_count));
}

/**
 * _scsih_sas_discovery_event - handle discovery events
 * @ioc: per adapter object
5167
 * @fw_event: The fw_event_work object
E
Eric Moore 已提交
5168 5169 5170 5171 5172
 * Context: user.
 *
 * Return nothing.
 */
static void
5173 5174
_scsih_sas_discovery_event(struct MPT2SAS_ADAPTER *ioc,
    struct fw_event_work *fw_event)
E
Eric Moore 已提交
5175
{
5176 5177
	Mpi2EventDataSasDiscovery_t *event_data = fw_event->event_data;

E
Eric Moore 已提交
5178 5179
#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
	if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK) {
5180
		printk(MPT2SAS_INFO_FMT "discovery event: (%s)", ioc->name,
E
Eric Moore 已提交
5181 5182 5183
		    (event_data->ReasonCode == MPI2_EVENT_SAS_DISC_RC_STARTED) ?
		    "start" : "stop");
	if (event_data->DiscoveryStatus)
5184 5185
		printk("discovery_status(0x%08x)",
		    le32_to_cpu(event_data->DiscoveryStatus));
E
Eric Moore 已提交
5186 5187 5188 5189 5190 5191 5192 5193 5194 5195 5196 5197 5198 5199 5200 5201 5202 5203 5204 5205 5206 5207 5208 5209 5210 5211 5212 5213 5214 5215 5216 5217 5218 5219 5220 5221 5222 5223 5224 5225 5226 5227 5228 5229 5230 5231 5232 5233 5234 5235 5236 5237 5238 5239 5240 5241 5242 5243 5244 5245 5246 5247 5248 5249 5250 5251 5252 5253 5254 5255 5256 5257 5258 5259 5260 5261 5262 5263 5264 5265 5266 5267 5268 5269 5270 5271 5272 5273 5274 5275 5276 5277 5278 5279 5280 5281 5282 5283 5284 5285 5286 5287 5288 5289 5290
	printk("\n");
	}
#endif

	if (event_data->ReasonCode == MPI2_EVENT_SAS_DISC_RC_STARTED &&
	    !ioc->sas_hba.num_phys)
		_scsih_sas_host_add(ioc);
}

/**
 * _scsih_reprobe_lun - reprobing lun
 * @sdev: scsi device struct
 * @no_uld_attach: sdev->no_uld_attach flag setting
 *
 **/
static void
_scsih_reprobe_lun(struct scsi_device *sdev, void *no_uld_attach)
{
	int rc;

	sdev->no_uld_attach = no_uld_attach ? 1 : 0;
	sdev_printk(KERN_INFO, sdev, "%s raid component\n",
	    sdev->no_uld_attach ? "hidding" : "exposing");
	rc = scsi_device_reprobe(sdev);
}

/**
 * _scsih_reprobe_target - reprobing target
 * @starget: scsi target struct
 * @no_uld_attach: sdev->no_uld_attach flag setting
 *
 * Note: no_uld_attach flag determines whether the disk device is attached
 * to block layer. A value of `1` means to not attach.
 **/
static void
_scsih_reprobe_target(struct scsi_target *starget, int no_uld_attach)
{
	struct MPT2SAS_TARGET *sas_target_priv_data = starget->hostdata;

	if (no_uld_attach)
		sas_target_priv_data->flags |= MPT_TARGET_FLAGS_RAID_COMPONENT;
	else
		sas_target_priv_data->flags &= ~MPT_TARGET_FLAGS_RAID_COMPONENT;

	starget_for_each_device(starget, no_uld_attach ? (void *)1 : NULL,
	    _scsih_reprobe_lun);
}
/**
 * _scsih_sas_volume_add - add new volume
 * @ioc: per adapter object
 * @element: IR config element data
 * Context: user.
 *
 * Return nothing.
 */
static void
_scsih_sas_volume_add(struct MPT2SAS_ADAPTER *ioc,
    Mpi2EventIrConfigElement_t *element)
{
	struct _raid_device *raid_device;
	unsigned long flags;
	u64 wwid;
	u16 handle = le16_to_cpu(element->VolDevHandle);
	int rc;

	mpt2sas_config_get_volume_wwid(ioc, handle, &wwid);
	if (!wwid) {
		printk(MPT2SAS_ERR_FMT
		    "failure at %s:%d/%s()!\n", ioc->name,
		    __FILE__, __LINE__, __func__);
		return;
	}

	spin_lock_irqsave(&ioc->raid_device_lock, flags);
	raid_device = _scsih_raid_device_find_by_wwid(ioc, wwid);
	spin_unlock_irqrestore(&ioc->raid_device_lock, flags);

	if (raid_device)
		return;

	raid_device = kzalloc(sizeof(struct _raid_device), GFP_KERNEL);
	if (!raid_device) {
		printk(MPT2SAS_ERR_FMT
		    "failure at %s:%d/%s()!\n", ioc->name,
		    __FILE__, __LINE__, __func__);
		return;
	}

	raid_device->id = ioc->sas_id++;
	raid_device->channel = RAID_CHANNEL;
	raid_device->handle = handle;
	raid_device->wwid = wwid;
	_scsih_raid_device_add(ioc, raid_device);
	if (!ioc->wait_for_port_enable_to_complete) {
		rc = scsi_add_device(ioc->shost, RAID_CHANNEL,
		    raid_device->id, 0);
		if (rc)
			_scsih_raid_device_remove(ioc, raid_device);
	} else
		_scsih_determine_boot_device(ioc, raid_device, 1);
}

/**
 * _scsih_sas_volume_delete - delete volume
 * @ioc: per adapter object
5291
 * @handle: volume device handle
E
Eric Moore 已提交
5292 5293 5294 5295 5296
 * Context: user.
 *
 * Return nothing.
 */
static void
5297
_scsih_sas_volume_delete(struct MPT2SAS_ADAPTER *ioc, u16 handle)
E
Eric Moore 已提交
5298 5299 5300 5301 5302 5303 5304 5305 5306 5307 5308 5309 5310 5311 5312
{
	struct _raid_device *raid_device;
	unsigned long flags;
	struct MPT2SAS_TARGET *sas_target_priv_data;

	spin_lock_irqsave(&ioc->raid_device_lock, flags);
	raid_device = _scsih_raid_device_find_by_handle(ioc, handle);
	spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
	if (!raid_device)
		return;
	if (raid_device->starget) {
		sas_target_priv_data = raid_device->starget->hostdata;
		sas_target_priv_data->deleted = 1;
		scsi_remove_target(&raid_device->starget->dev);
	}
5313 5314 5315
	printk(MPT2SAS_INFO_FMT "removing handle(0x%04x), wwid"
	    "(0x%016llx)\n", ioc->name,  raid_device->handle,
	    (unsigned long long) raid_device->wwid);
E
Eric Moore 已提交
5316 5317 5318 5319 5320 5321 5322 5323 5324 5325 5326 5327 5328 5329 5330 5331 5332 5333 5334 5335 5336 5337 5338 5339 5340 5341 5342 5343
	_scsih_raid_device_remove(ioc, raid_device);
}

/**
 * _scsih_sas_pd_expose - expose pd component to /dev/sdX
 * @ioc: per adapter object
 * @element: IR config element data
 * Context: user.
 *
 * Return nothing.
 */
static void
_scsih_sas_pd_expose(struct MPT2SAS_ADAPTER *ioc,
    Mpi2EventIrConfigElement_t *element)
{
	struct _sas_device *sas_device;
	unsigned long flags;
	u16 handle = le16_to_cpu(element->PhysDiskDevHandle);

	spin_lock_irqsave(&ioc->sas_device_lock, flags);
	sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
	spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
	if (!sas_device)
		return;

	/* exposing raid component */
	sas_device->volume_handle = 0;
	sas_device->volume_wwid = 0;
5344
	clear_bit(handle, ioc->pd_handles);
E
Eric Moore 已提交
5345 5346 5347 5348 5349 5350 5351 5352 5353 5354 5355 5356 5357 5358 5359 5360 5361 5362 5363 5364 5365 5366 5367 5368 5369 5370 5371 5372 5373 5374
	_scsih_reprobe_target(sas_device->starget, 0);
}

/**
 * _scsih_sas_pd_hide - hide pd component from /dev/sdX
 * @ioc: per adapter object
 * @element: IR config element data
 * Context: user.
 *
 * Return nothing.
 */
static void
_scsih_sas_pd_hide(struct MPT2SAS_ADAPTER *ioc,
    Mpi2EventIrConfigElement_t *element)
{
	struct _sas_device *sas_device;
	unsigned long flags;
	u16 handle = le16_to_cpu(element->PhysDiskDevHandle);

	spin_lock_irqsave(&ioc->sas_device_lock, flags);
	sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
	spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
	if (!sas_device)
		return;

	/* hiding raid component */
	mpt2sas_config_get_volume_handle(ioc, handle,
	    &sas_device->volume_handle);
	mpt2sas_config_get_volume_wwid(ioc, sas_device->volume_handle,
	    &sas_device->volume_wwid);
5375
	set_bit(handle, ioc->pd_handles);
E
Eric Moore 已提交
5376 5377 5378 5379 5380 5381 5382 5383 5384 5385 5386 5387 5388 5389 5390 5391 5392 5393 5394 5395 5396 5397 5398 5399
	_scsih_reprobe_target(sas_device->starget, 1);
}

/**
 * _scsih_sas_pd_delete - delete pd component
 * @ioc: per adapter object
 * @element: IR config element data
 * Context: user.
 *
 * Return nothing.
 */
static void
_scsih_sas_pd_delete(struct MPT2SAS_ADAPTER *ioc,
    Mpi2EventIrConfigElement_t *element)
{
	struct _sas_device *sas_device;
	unsigned long flags;
	u16 handle = le16_to_cpu(element->PhysDiskDevHandle);

	spin_lock_irqsave(&ioc->sas_device_lock, flags);
	sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
	spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
	if (!sas_device)
		return;
5400
	_scsih_remove_device(ioc, sas_device);
E
Eric Moore 已提交
5401 5402 5403 5404 5405 5406 5407 5408 5409 5410 5411 5412 5413 5414 5415 5416 5417
}

/**
 * _scsih_sas_pd_add - remove pd component
 * @ioc: per adapter object
 * @element: IR config element data
 * Context: user.
 *
 * Return nothing.
 */
static void
_scsih_sas_pd_add(struct MPT2SAS_ADAPTER *ioc,
    Mpi2EventIrConfigElement_t *element)
{
	struct _sas_device *sas_device;
	unsigned long flags;
	u16 handle = le16_to_cpu(element->PhysDiskDevHandle);
5418 5419 5420
	Mpi2ConfigReply_t mpi_reply;
	Mpi2SasDevicePage0_t sas_device_pg0;
	u32 ioc_status;
5421 5422
	u64 sas_address;
	u16 parent_handle;
E
Eric Moore 已提交
5423

5424 5425
	set_bit(handle, ioc->pd_handles);

E
Eric Moore 已提交
5426 5427 5428
	spin_lock_irqsave(&ioc->sas_device_lock, flags);
	sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
	spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
5429
	if (sas_device)
5430 5431 5432 5433 5434 5435 5436 5437 5438 5439 5440 5441 5442 5443 5444 5445 5446
		return;

	if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
	    MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) {
		printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
		    ioc->name, __FILE__, __LINE__, __func__);
		return;
	}

	ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
	    MPI2_IOCSTATUS_MASK;
	if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
		printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
		    ioc->name, __FILE__, __LINE__, __func__);
		return;
	}

5447 5448 5449 5450
	parent_handle = le16_to_cpu(sas_device_pg0.ParentDevHandle);
	if (!_scsih_get_sas_address(ioc, parent_handle, &sas_address))
		mpt2sas_transport_update_links(ioc, sas_address, handle,
		    sas_device_pg0.PhyNum, MPI2_SAS_NEG_LINK_RATE_1_5);
5451 5452

	_scsih_add_device(ioc, handle, 0, 1);
E
Eric Moore 已提交
5453 5454 5455 5456 5457 5458 5459 5460 5461 5462 5463 5464 5465 5466 5467 5468 5469 5470 5471 5472 5473 5474
}

#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
/**
 * _scsih_sas_ir_config_change_event_debug - debug for IR Config Change events
 * @ioc: per adapter object
 * @event_data: event data payload
 * Context: user.
 *
 * Return nothing.
 */
static void
_scsih_sas_ir_config_change_event_debug(struct MPT2SAS_ADAPTER *ioc,
    Mpi2EventDataIrConfigChangeList_t *event_data)
{
	Mpi2EventIrConfigElement_t *element;
	u8 element_type;
	int i;
	char *reason_str = NULL, *element_str = NULL;

	element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];

5475
	printk(MPT2SAS_INFO_FMT "raid config change: (%s), elements(%d)\n",
E
Eric Moore 已提交
5476 5477 5478 5479 5480 5481 5482 5483 5484 5485 5486 5487 5488 5489 5490 5491 5492 5493 5494 5495 5496 5497 5498 5499 5500 5501 5502 5503 5504 5505 5506 5507 5508 5509 5510 5511 5512 5513 5514 5515 5516 5517 5518 5519 5520 5521 5522 5523 5524 5525 5526 5527
	    ioc->name, (le32_to_cpu(event_data->Flags) &
	    MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG) ?
	    "foreign" : "native", event_data->NumElements);
	for (i = 0; i < event_data->NumElements; i++, element++) {
		switch (element->ReasonCode) {
		case MPI2_EVENT_IR_CHANGE_RC_ADDED:
			reason_str = "add";
			break;
		case MPI2_EVENT_IR_CHANGE_RC_REMOVED:
			reason_str = "remove";
			break;
		case MPI2_EVENT_IR_CHANGE_RC_NO_CHANGE:
			reason_str = "no change";
			break;
		case MPI2_EVENT_IR_CHANGE_RC_HIDE:
			reason_str = "hide";
			break;
		case MPI2_EVENT_IR_CHANGE_RC_UNHIDE:
			reason_str = "unhide";
			break;
		case MPI2_EVENT_IR_CHANGE_RC_VOLUME_CREATED:
			reason_str = "volume_created";
			break;
		case MPI2_EVENT_IR_CHANGE_RC_VOLUME_DELETED:
			reason_str = "volume_deleted";
			break;
		case MPI2_EVENT_IR_CHANGE_RC_PD_CREATED:
			reason_str = "pd_created";
			break;
		case MPI2_EVENT_IR_CHANGE_RC_PD_DELETED:
			reason_str = "pd_deleted";
			break;
		default:
			reason_str = "unknown reason";
			break;
		}
		element_type = le16_to_cpu(element->ElementFlags) &
		    MPI2_EVENT_IR_CHANGE_EFLAGS_ELEMENT_TYPE_MASK;
		switch (element_type) {
		case MPI2_EVENT_IR_CHANGE_EFLAGS_VOLUME_ELEMENT:
			element_str = "volume";
			break;
		case MPI2_EVENT_IR_CHANGE_EFLAGS_VOLPHYSDISK_ELEMENT:
			element_str = "phys disk";
			break;
		case MPI2_EVENT_IR_CHANGE_EFLAGS_HOTSPARE_ELEMENT:
			element_str = "hot spare";
			break;
		default:
			element_str = "unknown element";
			break;
		}
5528
		printk(KERN_INFO "\t(%s:%s), vol handle(0x%04x), "
E
Eric Moore 已提交
5529 5530 5531 5532 5533 5534 5535 5536 5537 5538 5539
		    "pd handle(0x%04x), pd num(0x%02x)\n", element_str,
		    reason_str, le16_to_cpu(element->VolDevHandle),
		    le16_to_cpu(element->PhysDiskDevHandle),
		    element->PhysDiskNum);
	}
}
#endif

/**
 * _scsih_sas_ir_config_change_event - handle ir configuration change events
 * @ioc: per adapter object
5540
 * @fw_event: The fw_event_work object
E
Eric Moore 已提交
5541 5542 5543 5544 5545
 * Context: user.
 *
 * Return nothing.
 */
static void
5546 5547
_scsih_sas_ir_config_change_event(struct MPT2SAS_ADAPTER *ioc,
    struct fw_event_work *fw_event)
E
Eric Moore 已提交
5548 5549 5550
{
	Mpi2EventIrConfigElement_t *element;
	int i;
5551
	u8 foreign_config;
5552
	Mpi2EventDataIrConfigChangeList_t *event_data = fw_event->event_data;
E
Eric Moore 已提交
5553 5554 5555 5556 5557 5558

#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
	if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
		_scsih_sas_ir_config_change_event_debug(ioc, event_data);

#endif
5559 5560
	foreign_config = (le32_to_cpu(event_data->Flags) &
	    MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG) ? 1 : 0;
E
Eric Moore 已提交
5561 5562 5563 5564 5565 5566 5567

	element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
	for (i = 0; i < event_data->NumElements; i++, element++) {

		switch (element->ReasonCode) {
		case MPI2_EVENT_IR_CHANGE_RC_VOLUME_CREATED:
		case MPI2_EVENT_IR_CHANGE_RC_ADDED:
5568 5569
			if (!foreign_config)
				_scsih_sas_volume_add(ioc, element);
E
Eric Moore 已提交
5570 5571 5572
			break;
		case MPI2_EVENT_IR_CHANGE_RC_VOLUME_DELETED:
		case MPI2_EVENT_IR_CHANGE_RC_REMOVED:
5573
			if (!foreign_config)
5574 5575
				_scsih_sas_volume_delete(ioc,
				    le16_to_cpu(element->VolDevHandle));
E
Eric Moore 已提交
5576 5577 5578 5579 5580 5581 5582 5583 5584 5585 5586 5587 5588 5589 5590 5591 5592 5593 5594 5595
			break;
		case MPI2_EVENT_IR_CHANGE_RC_PD_CREATED:
			_scsih_sas_pd_hide(ioc, element);
			break;
		case MPI2_EVENT_IR_CHANGE_RC_PD_DELETED:
			_scsih_sas_pd_expose(ioc, element);
			break;
		case MPI2_EVENT_IR_CHANGE_RC_HIDE:
			_scsih_sas_pd_add(ioc, element);
			break;
		case MPI2_EVENT_IR_CHANGE_RC_UNHIDE:
			_scsih_sas_pd_delete(ioc, element);
			break;
		}
	}
}

/**
 * _scsih_sas_ir_volume_event - IR volume event
 * @ioc: per adapter object
5596
 * @fw_event: The fw_event_work object
E
Eric Moore 已提交
5597 5598 5599 5600 5601
 * Context: user.
 *
 * Return nothing.
 */
static void
5602 5603
_scsih_sas_ir_volume_event(struct MPT2SAS_ADAPTER *ioc,
    struct fw_event_work *fw_event)
E
Eric Moore 已提交
5604 5605 5606 5607 5608 5609 5610
{
	u64 wwid;
	unsigned long flags;
	struct _raid_device *raid_device;
	u16 handle;
	u32 state;
	int rc;
5611
	Mpi2EventDataIrVolume_t *event_data = fw_event->event_data;
E
Eric Moore 已提交
5612 5613 5614 5615 5616 5617

	if (event_data->ReasonCode != MPI2_EVENT_IR_VOLUME_RC_STATE_CHANGED)
		return;

	handle = le16_to_cpu(event_data->VolDevHandle);
	state = le32_to_cpu(event_data->NewValue);
5618
	dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: handle(0x%04x), "
E
Eric Moore 已提交
5619 5620 5621 5622 5623 5624
	    "old(0x%08x), new(0x%08x)\n", ioc->name, __func__,  handle,
	    le32_to_cpu(event_data->PreviousValue), state));

	switch (state) {
	case MPI2_RAID_VOL_STATE_MISSING:
	case MPI2_RAID_VOL_STATE_FAILED:
5625
		_scsih_sas_volume_delete(ioc, handle);
E
Eric Moore 已提交
5626 5627 5628 5629 5630
		break;

	case MPI2_RAID_VOL_STATE_ONLINE:
	case MPI2_RAID_VOL_STATE_DEGRADED:
	case MPI2_RAID_VOL_STATE_OPTIMAL:
5631 5632 5633 5634 5635

		spin_lock_irqsave(&ioc->raid_device_lock, flags);
		raid_device = _scsih_raid_device_find_by_handle(ioc, handle);
		spin_unlock_irqrestore(&ioc->raid_device_lock, flags);

E
Eric Moore 已提交
5636 5637 5638 5639 5640 5641 5642 5643 5644 5645 5646 5647 5648 5649 5650 5651 5652 5653 5654 5655 5656 5657 5658 5659 5660 5661 5662 5663 5664 5665 5666 5667 5668 5669 5670 5671 5672 5673 5674
		if (raid_device)
			break;

		mpt2sas_config_get_volume_wwid(ioc, handle, &wwid);
		if (!wwid) {
			printk(MPT2SAS_ERR_FMT
			    "failure at %s:%d/%s()!\n", ioc->name,
			    __FILE__, __LINE__, __func__);
			break;
		}

		raid_device = kzalloc(sizeof(struct _raid_device), GFP_KERNEL);
		if (!raid_device) {
			printk(MPT2SAS_ERR_FMT
			    "failure at %s:%d/%s()!\n", ioc->name,
			    __FILE__, __LINE__, __func__);
			break;
		}

		raid_device->id = ioc->sas_id++;
		raid_device->channel = RAID_CHANNEL;
		raid_device->handle = handle;
		raid_device->wwid = wwid;
		_scsih_raid_device_add(ioc, raid_device);
		rc = scsi_add_device(ioc->shost, RAID_CHANNEL,
		    raid_device->id, 0);
		if (rc)
			_scsih_raid_device_remove(ioc, raid_device);
		break;

	case MPI2_RAID_VOL_STATE_INITIALIZING:
	default:
		break;
	}
}

/**
 * _scsih_sas_ir_physical_disk_event - PD event
 * @ioc: per adapter object
5675
 * @fw_event: The fw_event_work object
E
Eric Moore 已提交
5676 5677 5678 5679 5680
 * Context: user.
 *
 * Return nothing.
 */
static void
5681 5682
_scsih_sas_ir_physical_disk_event(struct MPT2SAS_ADAPTER *ioc,
    struct fw_event_work *fw_event)
E
Eric Moore 已提交
5683
{
5684
	u16 handle, parent_handle;
E
Eric Moore 已提交
5685 5686 5687
	u32 state;
	struct _sas_device *sas_device;
	unsigned long flags;
5688 5689 5690
	Mpi2ConfigReply_t mpi_reply;
	Mpi2SasDevicePage0_t sas_device_pg0;
	u32 ioc_status;
5691
	Mpi2EventDataIrPhysicalDisk_t *event_data = fw_event->event_data;
5692
	u64 sas_address;
E
Eric Moore 已提交
5693 5694 5695 5696 5697 5698 5699

	if (event_data->ReasonCode != MPI2_EVENT_IR_PHYSDISK_RC_STATE_CHANGED)
		return;

	handle = le16_to_cpu(event_data->PhysDiskDevHandle);
	state = le32_to_cpu(event_data->NewValue);

5700
	dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: handle(0x%04x), "
E
Eric Moore 已提交
5701 5702 5703 5704 5705 5706 5707 5708
	    "old(0x%08x), new(0x%08x)\n", ioc->name, __func__,  handle,
	    le32_to_cpu(event_data->PreviousValue), state));

	switch (state) {
	case MPI2_RAID_PD_STATE_ONLINE:
	case MPI2_RAID_PD_STATE_DEGRADED:
	case MPI2_RAID_PD_STATE_REBUILDING:
	case MPI2_RAID_PD_STATE_OPTIMAL:
5709 5710 5711 5712 5713 5714 5715 5716 5717
	case MPI2_RAID_PD_STATE_HOT_SPARE:

		set_bit(handle, ioc->pd_handles);

		spin_lock_irqsave(&ioc->sas_device_lock, flags);
		sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
		spin_unlock_irqrestore(&ioc->sas_device_lock, flags);

		if (sas_device)
5718 5719 5720 5721 5722 5723 5724 5725 5726 5727 5728 5729 5730 5731 5732 5733 5734 5735
			return;

		if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply,
		    &sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_HANDLE,
		    handle))) {
			printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
			    ioc->name, __FILE__, __LINE__, __func__);
			return;
		}

		ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
		    MPI2_IOCSTATUS_MASK;
		if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
			printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
			    ioc->name, __FILE__, __LINE__, __func__);
			return;
		}

5736 5737 5738 5739
		parent_handle = le16_to_cpu(sas_device_pg0.ParentDevHandle);
		if (!_scsih_get_sas_address(ioc, parent_handle, &sas_address))
			mpt2sas_transport_update_links(ioc, sas_address, handle,
			    sas_device_pg0.PhyNum, MPI2_SAS_NEG_LINK_RATE_1_5);
5740 5741 5742

		_scsih_add_device(ioc, handle, 0, 1);

E
Eric Moore 已提交
5743 5744
		break;

5745
	case MPI2_RAID_PD_STATE_OFFLINE:
E
Eric Moore 已提交
5746 5747 5748 5749 5750 5751 5752 5753 5754 5755 5756 5757 5758 5759 5760 5761 5762 5763 5764 5765 5766 5767 5768 5769 5770 5771 5772 5773 5774 5775 5776 5777
	case MPI2_RAID_PD_STATE_NOT_CONFIGURED:
	case MPI2_RAID_PD_STATE_NOT_COMPATIBLE:
	default:
		break;
	}
}

#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
/**
 * _scsih_sas_ir_operation_status_event_debug - debug for IR op event
 * @ioc: per adapter object
 * @event_data: event data payload
 * Context: user.
 *
 * Return nothing.
 */
static void
_scsih_sas_ir_operation_status_event_debug(struct MPT2SAS_ADAPTER *ioc,
    Mpi2EventDataIrOperationStatus_t *event_data)
{
	char *reason_str = NULL;

	switch (event_data->RAIDOperation) {
	case MPI2_EVENT_IR_RAIDOP_RESYNC:
		reason_str = "resync";
		break;
	case MPI2_EVENT_IR_RAIDOP_ONLINE_CAP_EXPANSION:
		reason_str = "online capacity expansion";
		break;
	case MPI2_EVENT_IR_RAIDOP_CONSISTENCY_CHECK:
		reason_str = "consistency check";
		break;
5778 5779 5780 5781 5782
	case MPI2_EVENT_IR_RAIDOP_BACKGROUND_INIT:
		reason_str = "background init";
		break;
	case MPI2_EVENT_IR_RAIDOP_MAKE_DATA_CONSISTENT:
		reason_str = "make data consistent";
E
Eric Moore 已提交
5783 5784 5785
		break;
	}

5786 5787 5788
	if (!reason_str)
		return;

E
Eric Moore 已提交
5789 5790 5791 5792 5793 5794 5795 5796 5797 5798 5799
	printk(MPT2SAS_INFO_FMT "raid operational status: (%s)"
	    "\thandle(0x%04x), percent complete(%d)\n",
	    ioc->name, reason_str,
	    le16_to_cpu(event_data->VolDevHandle),
	    event_data->PercentComplete);
}
#endif

/**
 * _scsih_sas_ir_operation_status_event - handle RAID operation events
 * @ioc: per adapter object
5800
 * @fw_event: The fw_event_work object
E
Eric Moore 已提交
5801 5802 5803 5804 5805
 * Context: user.
 *
 * Return nothing.
 */
static void
5806 5807
_scsih_sas_ir_operation_status_event(struct MPT2SAS_ADAPTER *ioc,
    struct fw_event_work *fw_event)
E
Eric Moore 已提交
5808
{
5809 5810 5811 5812 5813
	Mpi2EventDataIrOperationStatus_t *event_data = fw_event->event_data;
	static struct _raid_device *raid_device;
	unsigned long flags;
	u16 handle;

E
Eric Moore 已提交
5814 5815
#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
	if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
5816
		_scsih_sas_ir_operation_status_event_debug(ioc,
5817
		     event_data);
E
Eric Moore 已提交
5818
#endif
5819 5820 5821 5822 5823 5824 5825 5826 5827 5828 5829 5830 5831 5832 5833 5834 5835

	/* code added for raid transport support */
	if (event_data->RAIDOperation == MPI2_EVENT_IR_RAIDOP_RESYNC) {

		handle = le16_to_cpu(event_data->VolDevHandle);

		spin_lock_irqsave(&ioc->raid_device_lock, flags);
		raid_device = _scsih_raid_device_find_by_handle(ioc, handle);
		spin_unlock_irqrestore(&ioc->raid_device_lock, flags);

		if (!raid_device)
			return;

		if (event_data->RAIDOperation == MPI2_EVENT_IR_RAIDOP_RESYNC)
			raid_device->percent_complete =
			    event_data->PercentComplete;
	}
E
Eric Moore 已提交
5836 5837
}

5838 5839 5840 5841 5842 5843 5844 5845 5846 5847 5848 5849 5850 5851 5852 5853 5854 5855 5856 5857
/**
 * _scsih_prep_device_scan - initialize parameters prior to device scan
 * @ioc: per adapter object
 *
 * Set the deleted flag prior to device scan.  If the device is found during
 * the scan, then we clear the deleted flag.
 */
static void
_scsih_prep_device_scan(struct MPT2SAS_ADAPTER *ioc)
{
	struct MPT2SAS_DEVICE *sas_device_priv_data;
	struct scsi_device *sdev;

	shost_for_each_device(sdev, ioc->shost) {
		sas_device_priv_data = sdev->hostdata;
		if (sas_device_priv_data && sas_device_priv_data->sas_target)
			sas_device_priv_data->sas_target->deleted = 1;
	}
}

E
Eric Moore 已提交
5858 5859 5860 5861 5862 5863 5864 5865 5866 5867 5868 5869 5870 5871 5872 5873 5874 5875 5876 5877 5878 5879 5880 5881 5882 5883
/**
 * _scsih_mark_responding_sas_device - mark a sas_devices as responding
 * @ioc: per adapter object
 * @sas_address: sas address
 * @slot: enclosure slot id
 * @handle: device handle
 *
 * After host reset, find out whether devices are still responding.
 * Used in _scsi_remove_unresponsive_sas_devices.
 *
 * Return nothing.
 */
static void
_scsih_mark_responding_sas_device(struct MPT2SAS_ADAPTER *ioc, u64 sas_address,
    u16 slot, u16 handle)
{
	struct MPT2SAS_TARGET *sas_target_priv_data;
	struct scsi_target *starget;
	struct _sas_device *sas_device;
	unsigned long flags;

	spin_lock_irqsave(&ioc->sas_device_lock, flags);
	list_for_each_entry(sas_device, &ioc->sas_device_list, list) {
		if (sas_device->sas_address == sas_address &&
		    sas_device->slot == slot && sas_device->starget) {
			sas_device->responding = 1;
5884
			starget = sas_device->starget;
5885 5886 5887 5888 5889 5890
			if (starget && starget->hostdata) {
				sas_target_priv_data = starget->hostdata;
				sas_target_priv_data->tm_busy = 0;
				sas_target_priv_data->deleted = 0;
			} else
				sas_target_priv_data = NULL;
E
Eric Moore 已提交
5891 5892 5893 5894 5895 5896 5897 5898 5899 5900 5901 5902
			starget_printk(KERN_INFO, sas_device->starget,
			    "handle(0x%04x), sas_addr(0x%016llx), enclosure "
			    "logical id(0x%016llx), slot(%d)\n", handle,
			    (unsigned long long)sas_device->sas_address,
			    (unsigned long long)
			    sas_device->enclosure_logical_id,
			    sas_device->slot);
			if (sas_device->handle == handle)
				goto out;
			printk(KERN_INFO "\thandle changed from(0x%04x)!!!\n",
			    sas_device->handle);
			sas_device->handle = handle;
5903 5904
			if (sas_target_priv_data)
				sas_target_priv_data->handle = handle;
E
Eric Moore 已提交
5905 5906 5907 5908 5909 5910 5911 5912 5913 5914 5915 5916 5917 5918 5919 5920 5921 5922 5923 5924 5925 5926 5927 5928 5929 5930 5931 5932 5933 5934 5935 5936 5937 5938 5939 5940 5941 5942 5943 5944 5945 5946 5947 5948 5949 5950 5951 5952 5953 5954 5955 5956 5957 5958 5959 5960 5961 5962 5963 5964 5965 5966 5967 5968 5969 5970 5971 5972 5973 5974 5975 5976 5977 5978
			goto out;
		}
	}
 out:
	spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
}

/**
 * _scsih_search_responding_sas_devices -
 * @ioc: per adapter object
 *
 * After host reset, find out whether devices are still responding.
 * If not remove.
 *
 * Return nothing.
 */
static void
_scsih_search_responding_sas_devices(struct MPT2SAS_ADAPTER *ioc)
{
	Mpi2SasDevicePage0_t sas_device_pg0;
	Mpi2ConfigReply_t mpi_reply;
	u16 ioc_status;
	__le64 sas_address;
	u16 handle;
	u32 device_info;
	u16 slot;

	printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, __func__);

	if (list_empty(&ioc->sas_device_list))
		return;

	handle = 0xFFFF;
	while (!(mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply,
	    &sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_GET_NEXT_HANDLE,
	    handle))) {
		ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
		    MPI2_IOCSTATUS_MASK;
		if (ioc_status == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE)
			break;
		handle = le16_to_cpu(sas_device_pg0.DevHandle);
		device_info = le32_to_cpu(sas_device_pg0.DeviceInfo);
		if (!(_scsih_is_end_device(device_info)))
			continue;
		sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
		slot = le16_to_cpu(sas_device_pg0.Slot);
		_scsih_mark_responding_sas_device(ioc, sas_address, slot,
		    handle);
	}
}

/**
 * _scsih_mark_responding_raid_device - mark a raid_device as responding
 * @ioc: per adapter object
 * @wwid: world wide identifier for raid volume
 * @handle: device handle
 *
 * After host reset, find out whether devices are still responding.
 * Used in _scsi_remove_unresponsive_raid_devices.
 *
 * Return nothing.
 */
static void
_scsih_mark_responding_raid_device(struct MPT2SAS_ADAPTER *ioc, u64 wwid,
    u16 handle)
{
	struct MPT2SAS_TARGET *sas_target_priv_data;
	struct scsi_target *starget;
	struct _raid_device *raid_device;
	unsigned long flags;

	spin_lock_irqsave(&ioc->raid_device_lock, flags);
	list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
		if (raid_device->wwid == wwid && raid_device->starget) {
5979 5980 5981 5982 5983 5984
			starget = raid_device->starget;
			if (starget && starget->hostdata) {
				sas_target_priv_data = starget->hostdata;
				sas_target_priv_data->deleted = 0;
			} else
				sas_target_priv_data = NULL;
E
Eric Moore 已提交
5985 5986 5987 5988 5989 5990 5991 5992 5993
			raid_device->responding = 1;
			starget_printk(KERN_INFO, raid_device->starget,
			    "handle(0x%04x), wwid(0x%016llx)\n", handle,
			    (unsigned long long)raid_device->wwid);
			if (raid_device->handle == handle)
				goto out;
			printk(KERN_INFO "\thandle changed from(0x%04x)!!!\n",
			    raid_device->handle);
			raid_device->handle = handle;
5994 5995
			if (sas_target_priv_data)
				sas_target_priv_data->handle = handle;
E
Eric Moore 已提交
5996 5997 5998 5999 6000 6001 6002 6003 6004 6005 6006 6007 6008 6009 6010 6011 6012 6013 6014 6015
			goto out;
		}
	}
 out:
	spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
}

/**
 * _scsih_search_responding_raid_devices -
 * @ioc: per adapter object
 *
 * After host reset, find out whether devices are still responding.
 * If not remove.
 *
 * Return nothing.
 */
static void
_scsih_search_responding_raid_devices(struct MPT2SAS_ADAPTER *ioc)
{
	Mpi2RaidVolPage1_t volume_pg1;
6016
	Mpi2RaidVolPage0_t volume_pg0;
6017
	Mpi2RaidPhysDiskPage0_t pd_pg0;
E
Eric Moore 已提交
6018 6019 6020
	Mpi2ConfigReply_t mpi_reply;
	u16 ioc_status;
	u16 handle;
6021
	u8 phys_disk_num;
E
Eric Moore 已提交
6022 6023 6024 6025 6026 6027 6028 6029 6030 6031 6032 6033 6034 6035

	printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, __func__);

	if (list_empty(&ioc->raid_device_list))
		return;

	handle = 0xFFFF;
	while (!(mpt2sas_config_get_raid_volume_pg1(ioc, &mpi_reply,
	    &volume_pg1, MPI2_RAID_VOLUME_PGAD_FORM_GET_NEXT_HANDLE, handle))) {
		ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
		    MPI2_IOCSTATUS_MASK;
		if (ioc_status == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE)
			break;
		handle = le16_to_cpu(volume_pg1.DevHandle);
6036 6037 6038 6039 6040 6041 6042 6043 6044 6045 6046

		if (mpt2sas_config_get_raid_volume_pg0(ioc, &mpi_reply,
		    &volume_pg0, MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, handle,
		     sizeof(Mpi2RaidVolPage0_t)))
			continue;

		if (volume_pg0.VolumeState == MPI2_RAID_VOL_STATE_OPTIMAL ||
		    volume_pg0.VolumeState == MPI2_RAID_VOL_STATE_ONLINE ||
		    volume_pg0.VolumeState == MPI2_RAID_VOL_STATE_DEGRADED)
			_scsih_mark_responding_raid_device(ioc,
			    le64_to_cpu(volume_pg1.WWID), handle);
E
Eric Moore 已提交
6047
	}
6048 6049 6050 6051 6052 6053 6054 6055 6056 6057 6058 6059 6060 6061 6062

	/* refresh the pd_handles */
	phys_disk_num = 0xFF;
	memset(ioc->pd_handles, 0, ioc->pd_handles_sz);
	while (!(mpt2sas_config_get_phys_disk_pg0(ioc, &mpi_reply,
	    &pd_pg0, MPI2_PHYSDISK_PGAD_FORM_GET_NEXT_PHYSDISKNUM,
	    phys_disk_num))) {
		ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
		    MPI2_IOCSTATUS_MASK;
		if (ioc_status == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE)
			break;
		phys_disk_num = pd_pg0.PhysDiskNum;
		handle = le16_to_cpu(pd_pg0.DevHandle);
		set_bit(handle, ioc->pd_handles);
	}
E
Eric Moore 已提交
6063 6064 6065 6066 6067 6068 6069 6070 6071 6072 6073 6074 6075 6076 6077 6078 6079 6080 6081
}

/**
 * _scsih_mark_responding_expander - mark a expander as responding
 * @ioc: per adapter object
 * @sas_address: sas address
 * @handle:
 *
 * After host reset, find out whether devices are still responding.
 * Used in _scsi_remove_unresponsive_expanders.
 *
 * Return nothing.
 */
static void
_scsih_mark_responding_expander(struct MPT2SAS_ADAPTER *ioc, u64 sas_address,
     u16 handle)
{
	struct _sas_node *sas_expander;
	unsigned long flags;
6082
	int i;
E
Eric Moore 已提交
6083 6084 6085

	spin_lock_irqsave(&ioc->sas_node_lock, flags);
	list_for_each_entry(sas_expander, &ioc->sas_expander_list, list) {
6086 6087 6088 6089
		if (sas_expander->sas_address != sas_address)
			continue;
		sas_expander->responding = 1;
		if (sas_expander->handle == handle)
E
Eric Moore 已提交
6090
			goto out;
6091 6092 6093 6094 6095 6096 6097 6098
		printk(KERN_INFO "\texpander(0x%016llx): handle changed"
		    " from(0x%04x) to (0x%04x)!!!\n",
		    (unsigned long long)sas_expander->sas_address,
		    sas_expander->handle, handle);
		sas_expander->handle = handle;
		for (i = 0 ; i < sas_expander->num_phys ; i++)
			sas_expander->phy[i].handle = handle;
		goto out;
E
Eric Moore 已提交
6099 6100 6101 6102 6103 6104 6105 6106 6107 6108 6109 6110 6111 6112 6113 6114 6115 6116 6117 6118 6119 6120 6121 6122 6123 6124 6125 6126 6127 6128 6129 6130 6131 6132 6133 6134 6135 6136 6137 6138 6139 6140 6141 6142 6143 6144 6145 6146
	}
 out:
	spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
}

/**
 * _scsih_search_responding_expanders -
 * @ioc: per adapter object
 *
 * After host reset, find out whether devices are still responding.
 * If not remove.
 *
 * Return nothing.
 */
static void
_scsih_search_responding_expanders(struct MPT2SAS_ADAPTER *ioc)
{
	Mpi2ExpanderPage0_t expander_pg0;
	Mpi2ConfigReply_t mpi_reply;
	u16 ioc_status;
	__le64 sas_address;
	u16 handle;

	printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, __func__);

	if (list_empty(&ioc->sas_expander_list))
		return;

	handle = 0xFFFF;
	while (!(mpt2sas_config_get_expander_pg0(ioc, &mpi_reply, &expander_pg0,
	    MPI2_SAS_EXPAND_PGAD_FORM_GET_NEXT_HNDL, handle))) {

		ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
		    MPI2_IOCSTATUS_MASK;
		if (ioc_status == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE)
			break;

		handle = le16_to_cpu(expander_pg0.DevHandle);
		sas_address = le64_to_cpu(expander_pg0.SASAddress);
		printk(KERN_INFO "\texpander present: handle(0x%04x), "
		    "sas_addr(0x%016llx)\n", handle,
		    (unsigned long long)sas_address);
		_scsih_mark_responding_expander(ioc, sas_address, handle);
	}

}

/**
6147
 * _scsih_remove_unresponding_sas_devices - removing unresponding devices
E
Eric Moore 已提交
6148 6149 6150 6151 6152
 * @ioc: per adapter object
 *
 * Return nothing.
 */
static void
6153
_scsih_remove_unresponding_sas_devices(struct MPT2SAS_ADAPTER *ioc)
E
Eric Moore 已提交
6154 6155
{
	struct _sas_device *sas_device, *sas_device_next;
6156
	struct _sas_node *sas_expander;
E
Eric Moore 已提交
6157 6158 6159 6160 6161 6162 6163 6164 6165 6166 6167 6168 6169 6170 6171 6172 6173 6174
	struct _raid_device *raid_device, *raid_device_next;


	list_for_each_entry_safe(sas_device, sas_device_next,
	    &ioc->sas_device_list, list) {
		if (sas_device->responding) {
			sas_device->responding = 0;
			continue;
		}
		if (sas_device->starget)
			starget_printk(KERN_INFO, sas_device->starget,
			    "removing: handle(0x%04x), sas_addr(0x%016llx), "
			    "enclosure logical id(0x%016llx), slot(%d)\n",
			    sas_device->handle,
			    (unsigned long long)sas_device->sas_address,
			    (unsigned long long)
			    sas_device->enclosure_logical_id,
			    sas_device->slot);
6175
		_scsih_remove_device(ioc, sas_device);
E
Eric Moore 已提交
6176 6177 6178 6179 6180 6181 6182 6183 6184 6185 6186 6187 6188 6189 6190 6191 6192 6193
	}

	list_for_each_entry_safe(raid_device, raid_device_next,
	    &ioc->raid_device_list, list) {
		if (raid_device->responding) {
			raid_device->responding = 0;
			continue;
		}
		if (raid_device->starget) {
			starget_printk(KERN_INFO, raid_device->starget,
			    "removing: handle(0x%04x), wwid(0x%016llx)\n",
			      raid_device->handle,
			    (unsigned long long)raid_device->wwid);
			scsi_remove_target(&raid_device->starget->dev);
		}
		_scsih_raid_device_remove(ioc, raid_device);
	}

6194 6195 6196
 retry_expander_search:
	sas_expander = NULL;
	list_for_each_entry(sas_expander, &ioc->sas_expander_list, list) {
E
Eric Moore 已提交
6197 6198 6199 6200
		if (sas_expander->responding) {
			sas_expander->responding = 0;
			continue;
		}
6201
		mpt2sas_expander_remove(ioc, sas_expander->sas_address);
6202 6203 6204 6205 6206 6207 6208 6209 6210 6211 6212 6213 6214 6215 6216 6217 6218 6219 6220 6221 6222
		goto retry_expander_search;
	}
}

/**
 * mpt2sas_scsih_reset_handler - reset callback handler (for scsih)
 * @ioc: per adapter object
 * @reset_phase: phase
 *
 * The handler for doing any required cleanup or initialization.
 *
 * The reset phase can be MPT2_IOC_PRE_RESET, MPT2_IOC_AFTER_RESET,
 * MPT2_IOC_DONE_RESET
 *
 * Return nothing.
 */
void
mpt2sas_scsih_reset_handler(struct MPT2SAS_ADAPTER *ioc, int reset_phase)
{
	switch (reset_phase) {
	case MPT2_IOC_PRE_RESET:
6223
		dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: "
6224 6225 6226
		    "MPT2_IOC_PRE_RESET\n", ioc->name, __func__));
		break;
	case MPT2_IOC_AFTER_RESET:
6227
		dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: "
6228
		    "MPT2_IOC_AFTER_RESET\n", ioc->name, __func__));
6229 6230 6231 6232 6233
		if (ioc->scsih_cmds.status & MPT2_CMD_PENDING) {
			ioc->scsih_cmds.status |= MPT2_CMD_RESET;
			mpt2sas_base_free_smid(ioc, ioc->scsih_cmds.smid);
			complete(&ioc->scsih_cmds.done);
		}
6234 6235 6236 6237 6238
		if (ioc->tm_cmds.status & MPT2_CMD_PENDING) {
			ioc->tm_cmds.status |= MPT2_CMD_RESET;
			mpt2sas_base_free_smid(ioc, ioc->tm_cmds.smid);
			complete(&ioc->tm_cmds.done);
		}
6239
		_scsih_fw_event_cleanup_queue(ioc);
6240
		_scsih_flush_running_cmds(ioc);
6241
		_scsih_queue_rescan(ioc);
6242 6243
		break;
	case MPT2_IOC_DONE_RESET:
6244
		dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: "
6245
		    "MPT2_IOC_DONE_RESET\n", ioc->name, __func__));
6246
		_scsih_sas_host_refresh(ioc);
6247 6248 6249 6250
		_scsih_prep_device_scan(ioc);
		_scsih_search_responding_sas_devices(ioc);
		_scsih_search_responding_raid_devices(ioc);
		_scsih_search_responding_expanders(ioc);
6251
		break;
E
Eric Moore 已提交
6252 6253 6254 6255 6256 6257 6258 6259 6260 6261 6262 6263 6264 6265 6266
	}
}

/**
 * _firmware_event_work - delayed task for processing firmware events
 * @ioc: per adapter object
 * @work: equal to the fw_event_work object
 * Context: user.
 *
 * Return nothing.
 */
static void
_firmware_event_work(struct work_struct *work)
{
	struct fw_event_work *fw_event = container_of(work,
6267
	    struct fw_event_work, delayed_work.work);
E
Eric Moore 已提交
6268 6269 6270 6271
	unsigned long flags;
	struct MPT2SAS_ADAPTER *ioc = fw_event->ioc;

	/* the queue is being flushed so ignore this event */
6272 6273
	if (ioc->remove_host || fw_event->cancel_pending_work ||
	    ioc->pci_error_recovery) {
E
Eric Moore 已提交
6274 6275 6276 6277
		_scsih_fw_event_free(ioc, fw_event);
		return;
	}

6278 6279 6280 6281 6282 6283 6284 6285 6286 6287 6288 6289
	if (fw_event->event == MPT2SAS_RESCAN_AFTER_HOST_RESET) {
		_scsih_fw_event_free(ioc, fw_event);
		spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags);
		if (ioc->shost_recovery) {
			init_completion(&ioc->shost_recovery_done);
			spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock,
			    flags);
			wait_for_completion(&ioc->shost_recovery_done);
		} else
			spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock,
			    flags);
		_scsih_remove_unresponding_sas_devices(ioc);
E
Eric Moore 已提交
6290 6291 6292 6293 6294
		return;
	}

	switch (fw_event->event) {
	case MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST:
6295
		_scsih_sas_topology_change_event(ioc, fw_event);
E
Eric Moore 已提交
6296 6297
		break;
	case MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE:
6298 6299
		_scsih_sas_device_status_change_event(ioc,
		    fw_event);
E
Eric Moore 已提交
6300 6301
		break;
	case MPI2_EVENT_SAS_DISCOVERY:
6302 6303
		_scsih_sas_discovery_event(ioc,
		    fw_event);
E
Eric Moore 已提交
6304 6305
		break;
	case MPI2_EVENT_SAS_BROADCAST_PRIMITIVE:
6306 6307
		_scsih_sas_broadcast_primative_event(ioc,
		    fw_event);
E
Eric Moore 已提交
6308 6309 6310
		break;
	case MPI2_EVENT_SAS_ENCL_DEVICE_STATUS_CHANGE:
		_scsih_sas_enclosure_dev_status_change_event(ioc,
6311
		    fw_event);
E
Eric Moore 已提交
6312 6313
		break;
	case MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST:
6314
		_scsih_sas_ir_config_change_event(ioc, fw_event);
E
Eric Moore 已提交
6315 6316
		break;
	case MPI2_EVENT_IR_VOLUME:
6317
		_scsih_sas_ir_volume_event(ioc, fw_event);
E
Eric Moore 已提交
6318 6319
		break;
	case MPI2_EVENT_IR_PHYSICAL_DISK:
6320
		_scsih_sas_ir_physical_disk_event(ioc, fw_event);
E
Eric Moore 已提交
6321 6322
		break;
	case MPI2_EVENT_IR_OPERATION_STATUS:
6323
		_scsih_sas_ir_operation_status_event(ioc, fw_event);
E
Eric Moore 已提交
6324 6325 6326 6327 6328 6329 6330 6331
		break;
	}
	_scsih_fw_event_free(ioc, fw_event);
}

/**
 * mpt2sas_scsih_event_callback - firmware event handler (called at ISR time)
 * @ioc: per adapter object
6332
 * @msix_index: MSIX table index supplied by the OS
E
Eric Moore 已提交
6333 6334 6335 6336 6337 6338
 * @reply: reply message frame(lower 32bit addr)
 * Context: interrupt.
 *
 * This function merely adds a new work task into ioc->firmware_event_thread.
 * The tasks are worked from _firmware_event_work in user context.
 *
6339 6340
 * Return 1 meaning mf should be freed from _base_interrupt
 *        0 means the mf is freed from this function.
E
Eric Moore 已提交
6341
 */
6342
u8
6343 6344
mpt2sas_scsih_event_callback(struct MPT2SAS_ADAPTER *ioc, u8 msix_index,
	u32 reply)
E
Eric Moore 已提交
6345 6346 6347 6348
{
	struct fw_event_work *fw_event;
	Mpi2EventNotificationReply_t *mpi_reply;
	u16 event;
6349
	u16 sz;
E
Eric Moore 已提交
6350 6351

	/* events turned off due to host reset or driver unloading */
6352
	if (ioc->remove_host || ioc->pci_error_recovery)
6353
		return 1;
E
Eric Moore 已提交
6354

6355
	mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply);
E
Eric Moore 已提交
6356 6357 6358 6359 6360 6361 6362 6363 6364 6365 6366 6367 6368
	event = le16_to_cpu(mpi_reply->Event);

	switch (event) {
	/* handle these */
	case MPI2_EVENT_SAS_BROADCAST_PRIMITIVE:
	{
		Mpi2EventDataSasBroadcastPrimitive_t *baen_data =
		    (Mpi2EventDataSasBroadcastPrimitive_t *)
		    mpi_reply->EventData;

		if (baen_data->Primitive !=
		    MPI2_EVENT_PRIMITIVE_ASYNCHRONOUS_EVENT ||
		    ioc->broadcast_aen_busy)
6369
			return 1;
E
Eric Moore 已提交
6370 6371 6372 6373 6374 6375 6376 6377 6378
		ioc->broadcast_aen_busy = 1;
		break;
	}

	case MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST:
		_scsih_check_topo_delete_events(ioc,
		    (Mpi2EventDataSasTopologyChangeList_t *)
		    mpi_reply->EventData);
		break;
6379 6380 6381 6382 6383 6384 6385 6386 6387 6388
	case MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST:
		_scsih_check_ir_config_unhide_events(ioc,
		    (Mpi2EventDataIrConfigChangeList_t *)
		    mpi_reply->EventData);
		break;
	case MPI2_EVENT_IR_VOLUME:
		_scsih_check_volume_delete_events(ioc,
		    (Mpi2EventDataIrVolume_t *)
		    mpi_reply->EventData);
		break;
E
Eric Moore 已提交
6389 6390 6391 6392 6393 6394 6395 6396
	case MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE:
	case MPI2_EVENT_IR_OPERATION_STATUS:
	case MPI2_EVENT_SAS_DISCOVERY:
	case MPI2_EVENT_SAS_ENCL_DEVICE_STATUS_CHANGE:
	case MPI2_EVENT_IR_PHYSICAL_DISK:
		break;

	default: /* ignore the rest */
6397
		return 1;
E
Eric Moore 已提交
6398 6399 6400 6401 6402 6403
	}

	fw_event = kzalloc(sizeof(struct fw_event_work), GFP_ATOMIC);
	if (!fw_event) {
		printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
		    ioc->name, __FILE__, __LINE__, __func__);
6404
		return 1;
E
Eric Moore 已提交
6405
	}
6406 6407
	sz = le16_to_cpu(mpi_reply->EventDataLength) * 4;
	fw_event->event_data = kzalloc(sz, GFP_ATOMIC);
E
Eric Moore 已提交
6408 6409 6410 6411
	if (!fw_event->event_data) {
		printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
		    ioc->name, __FILE__, __LINE__, __func__);
		kfree(fw_event);
6412
		return 1;
E
Eric Moore 已提交
6413 6414 6415
	}

	memcpy(fw_event->event_data, mpi_reply->EventData,
6416
	    sz);
E
Eric Moore 已提交
6417
	fw_event->ioc = ioc;
6418 6419
	fw_event->VF_ID = mpi_reply->VF_ID;
	fw_event->VP_ID = mpi_reply->VP_ID;
E
Eric Moore 已提交
6420 6421
	fw_event->event = event;
	_scsih_fw_event_add(ioc, fw_event);
6422
	return 1;
E
Eric Moore 已提交
6423 6424 6425 6426 6427 6428 6429
}

/* shost template */
static struct scsi_host_template scsih_driver_template = {
	.module				= THIS_MODULE,
	.name				= "Fusion MPT SAS Host",
	.proc_name			= MPT2SAS_DRIVER_NAME,
6430 6431 6432 6433 6434 6435 6436 6437 6438 6439 6440 6441 6442
	.queuecommand			= _scsih_qcmd,
	.target_alloc			= _scsih_target_alloc,
	.slave_alloc			= _scsih_slave_alloc,
	.slave_configure		= _scsih_slave_configure,
	.target_destroy			= _scsih_target_destroy,
	.slave_destroy			= _scsih_slave_destroy,
	.change_queue_depth 		= _scsih_change_queue_depth,
	.change_queue_type		= _scsih_change_queue_type,
	.eh_abort_handler		= _scsih_abort,
	.eh_device_reset_handler	= _scsih_dev_reset,
	.eh_target_reset_handler	= _scsih_target_reset,
	.eh_host_reset_handler		= _scsih_host_reset,
	.bios_param			= _scsih_bios_param,
E
Eric Moore 已提交
6443 6444 6445 6446 6447 6448 6449 6450 6451 6452 6453 6454 6455 6456 6457 6458 6459 6460 6461 6462 6463 6464 6465 6466 6467
	.can_queue			= 1,
	.this_id			= -1,
	.sg_tablesize			= MPT2SAS_SG_DEPTH,
	.max_sectors			= 8192,
	.cmd_per_lun			= 7,
	.use_clustering			= ENABLE_CLUSTERING,
	.shost_attrs			= mpt2sas_host_attrs,
	.sdev_attrs			= mpt2sas_dev_attrs,
};

/**
 * _scsih_expander_node_remove - removing expander device from list.
 * @ioc: per adapter object
 * @sas_expander: the sas_device object
 * Context: Calling function should acquire ioc->sas_node_lock.
 *
 * Removing object and freeing associated memory from the
 * ioc->sas_expander_list.
 *
 * Return nothing.
 */
static void
_scsih_expander_node_remove(struct MPT2SAS_ADAPTER *ioc,
    struct _sas_node *sas_expander)
{
6468
	struct _sas_port *mpt2sas_port, *next;
E
Eric Moore 已提交
6469 6470

	/* remove sibling ports attached to this expander */
6471
	list_for_each_entry_safe(mpt2sas_port, next,
E
Eric Moore 已提交
6472
	   &sas_expander->sas_port_list, port_list) {
6473 6474
		if (ioc->shost_recovery)
			return;
E
Eric Moore 已提交
6475
		if (mpt2sas_port->remote_identify.device_type ==
6476 6477 6478 6479 6480
		    SAS_END_DEVICE)
			mpt2sas_device_remove(ioc,
			    mpt2sas_port->remote_identify.sas_address);
		else if (mpt2sas_port->remote_identify.device_type ==
		    SAS_EDGE_EXPANDER_DEVICE ||
E
Eric Moore 已提交
6481
		    mpt2sas_port->remote_identify.device_type ==
6482 6483 6484
		    SAS_FANOUT_EXPANDER_DEVICE)
			mpt2sas_expander_remove(ioc,
			    mpt2sas_port->remote_identify.sas_address);
E
Eric Moore 已提交
6485 6486 6487
	}

	mpt2sas_transport_port_remove(ioc, sas_expander->sas_address,
6488
	    sas_expander->sas_address_parent);
E
Eric Moore 已提交
6489 6490 6491 6492 6493 6494 6495 6496 6497 6498

	printk(MPT2SAS_INFO_FMT "expander_remove: handle"
	   "(0x%04x), sas_addr(0x%016llx)\n", ioc->name,
	    sas_expander->handle, (unsigned long long)
	    sas_expander->sas_address);

	kfree(sas_expander->phy);
	kfree(sas_expander);
}

6499 6500 6501 6502 6503 6504 6505 6506 6507 6508 6509 6510 6511 6512 6513 6514 6515 6516 6517 6518 6519 6520 6521 6522 6523 6524 6525 6526 6527 6528 6529 6530 6531 6532 6533 6534 6535 6536 6537 6538 6539 6540 6541 6542 6543 6544 6545 6546 6547 6548 6549 6550 6551 6552 6553 6554 6555 6556 6557 6558 6559 6560 6561 6562 6563 6564 6565 6566 6567 6568 6569 6570 6571 6572 6573 6574 6575 6576 6577 6578 6579 6580 6581 6582
/**
 * _scsih_ir_shutdown - IR shutdown notification
 * @ioc: per adapter object
 *
 * Sending RAID Action to alert the Integrated RAID subsystem of the IOC that
 * the host system is shutting down.
 *
 * Return nothing.
 */
static void
_scsih_ir_shutdown(struct MPT2SAS_ADAPTER *ioc)
{
	Mpi2RaidActionRequest_t *mpi_request;
	Mpi2RaidActionReply_t *mpi_reply;
	u16 smid;

	/* is IR firmware build loaded ? */
	if (!ioc->ir_firmware)
		return;

	/* are there any volumes ? */
	if (list_empty(&ioc->raid_device_list))
		return;

	mutex_lock(&ioc->scsih_cmds.mutex);

	if (ioc->scsih_cmds.status != MPT2_CMD_NOT_USED) {
		printk(MPT2SAS_ERR_FMT "%s: scsih_cmd in use\n",
		    ioc->name, __func__);
		goto out;
	}
	ioc->scsih_cmds.status = MPT2_CMD_PENDING;

	smid = mpt2sas_base_get_smid(ioc, ioc->scsih_cb_idx);
	if (!smid) {
		printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
		    ioc->name, __func__);
		ioc->scsih_cmds.status = MPT2_CMD_NOT_USED;
		goto out;
	}

	mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
	ioc->scsih_cmds.smid = smid;
	memset(mpi_request, 0, sizeof(Mpi2RaidActionRequest_t));

	mpi_request->Function = MPI2_FUNCTION_RAID_ACTION;
	mpi_request->Action = MPI2_RAID_ACTION_SYSTEM_SHUTDOWN_INITIATED;

	printk(MPT2SAS_INFO_FMT "IR shutdown (sending)\n", ioc->name);
	init_completion(&ioc->scsih_cmds.done);
	mpt2sas_base_put_smid_default(ioc, smid);
	wait_for_completion_timeout(&ioc->scsih_cmds.done, 10*HZ);

	if (!(ioc->scsih_cmds.status & MPT2_CMD_COMPLETE)) {
		printk(MPT2SAS_ERR_FMT "%s: timeout\n",
		    ioc->name, __func__);
		goto out;
	}

	if (ioc->scsih_cmds.status & MPT2_CMD_REPLY_VALID) {
		mpi_reply = ioc->scsih_cmds.reply;

		printk(MPT2SAS_INFO_FMT "IR shutdown (complete): "
		    "ioc_status(0x%04x), loginfo(0x%08x)\n",
		    ioc->name, le16_to_cpu(mpi_reply->IOCStatus),
		    le32_to_cpu(mpi_reply->IOCLogInfo));
	}

 out:
	ioc->scsih_cmds.status = MPT2_CMD_NOT_USED;
	mutex_unlock(&ioc->scsih_cmds.mutex);
}

/**
 * _scsih_shutdown - routine call during system shutdown
 * @pdev: PCI device struct
 *
 * Return nothing.
 */
static void
_scsih_shutdown(struct pci_dev *pdev)
{
	struct Scsi_Host *shost = pci_get_drvdata(pdev);
	struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
6583 6584 6585 6586 6587 6588 6589 6590 6591 6592 6593 6594
	struct workqueue_struct	*wq;
	unsigned long flags;

	ioc->remove_host = 1;
	_scsih_fw_event_cleanup_queue(ioc);

	spin_lock_irqsave(&ioc->fw_event_lock, flags);
	wq = ioc->firmware_event_thread;
	ioc->firmware_event_thread = NULL;
	spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
	if (wq)
		destroy_workqueue(wq);
6595 6596 6597 6598 6599

	_scsih_ir_shutdown(ioc);
	mpt2sas_base_detach(ioc);
}

E
Eric Moore 已提交
6600
/**
6601
 * _scsih_remove - detach and remove add host
E
Eric Moore 已提交
6602 6603
 * @pdev: PCI device struct
 *
6604
 * Routine called when unloading the driver.
E
Eric Moore 已提交
6605 6606 6607
 * Return nothing.
 */
static void __devexit
6608
_scsih_remove(struct pci_dev *pdev)
E
Eric Moore 已提交
6609 6610 6611
{
	struct Scsi_Host *shost = pci_get_drvdata(pdev);
	struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
6612
	struct _sas_port *mpt2sas_port, *next_port;
6613 6614
	struct _raid_device *raid_device, *next;
	struct MPT2SAS_TARGET *sas_target_priv_data;
E
Eric Moore 已提交
6615 6616 6617 6618
	struct workqueue_struct	*wq;
	unsigned long flags;

	ioc->remove_host = 1;
6619
	_scsih_fw_event_cleanup_queue(ioc);
E
Eric Moore 已提交
6620 6621 6622 6623 6624 6625 6626 6627

	spin_lock_irqsave(&ioc->fw_event_lock, flags);
	wq = ioc->firmware_event_thread;
	ioc->firmware_event_thread = NULL;
	spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
	if (wq)
		destroy_workqueue(wq);

6628 6629 6630 6631 6632 6633 6634 6635 6636 6637 6638 6639 6640 6641 6642
	/* release all the volumes */
	list_for_each_entry_safe(raid_device, next, &ioc->raid_device_list,
	    list) {
		if (raid_device->starget) {
			sas_target_priv_data =
			    raid_device->starget->hostdata;
			sas_target_priv_data->deleted = 1;
			scsi_remove_target(&raid_device->starget->dev);
		}
		printk(MPT2SAS_INFO_FMT "removing handle(0x%04x), wwid"
		    "(0x%016llx)\n", ioc->name,  raid_device->handle,
		    (unsigned long long) raid_device->wwid);
		_scsih_raid_device_remove(ioc, raid_device);
	}

E
Eric Moore 已提交
6643
	/* free ports attached to the sas_host */
6644
	list_for_each_entry_safe(mpt2sas_port, next_port,
E
Eric Moore 已提交
6645 6646
	   &ioc->sas_hba.sas_port_list, port_list) {
		if (mpt2sas_port->remote_identify.device_type ==
6647 6648 6649 6650 6651 6652 6653 6654
		    SAS_END_DEVICE)
			mpt2sas_device_remove(ioc,
			    mpt2sas_port->remote_identify.sas_address);
		else if (mpt2sas_port->remote_identify.device_type ==
		    SAS_EDGE_EXPANDER_DEVICE ||
		    mpt2sas_port->remote_identify.device_type ==
		    SAS_FANOUT_EXPANDER_DEVICE)
			mpt2sas_expander_remove(ioc,
E
Eric Moore 已提交
6655 6656 6657 6658 6659 6660 6661 6662 6663 6664 6665
			    mpt2sas_port->remote_identify.sas_address);
	}

	/* free phys attached to the sas_host */
	if (ioc->sas_hba.num_phys) {
		kfree(ioc->sas_hba.phy);
		ioc->sas_hba.phy = NULL;
		ioc->sas_hba.num_phys = 0;
	}

	sas_remove_host(shost);
6666
	_scsih_shutdown(pdev);
E
Eric Moore 已提交
6667 6668 6669 6670 6671 6672 6673 6674 6675 6676 6677 6678 6679 6680 6681 6682 6683 6684 6685 6686
	list_del(&ioc->list);
	scsi_remove_host(shost);
	scsi_host_put(shost);
}

/**
 * _scsih_probe_boot_devices - reports 1st device
 * @ioc: per adapter object
 *
 * If specified in bios page 2, this routine reports the 1st
 * device scsi-ml or sas transport for persistent boot device
 * purposes.  Please refer to function _scsih_determine_boot_device()
 */
static void
_scsih_probe_boot_devices(struct MPT2SAS_ADAPTER *ioc)
{
	u8 is_raid;
	void *device;
	struct _sas_device *sas_device;
	struct _raid_device *raid_device;
6687 6688
	u16 handle;
	u64 sas_address_parent;
E
Eric Moore 已提交
6689 6690 6691 6692 6693 6694 6695 6696 6697 6698 6699 6700 6701 6702 6703 6704 6705 6706 6707 6708 6709 6710 6711 6712 6713 6714 6715 6716
	u64 sas_address;
	unsigned long flags;
	int rc;

	device = NULL;
	if (ioc->req_boot_device.device) {
		device =  ioc->req_boot_device.device;
		is_raid = ioc->req_boot_device.is_raid;
	} else if (ioc->req_alt_boot_device.device) {
		device =  ioc->req_alt_boot_device.device;
		is_raid = ioc->req_alt_boot_device.is_raid;
	} else if (ioc->current_boot_device.device) {
		device =  ioc->current_boot_device.device;
		is_raid = ioc->current_boot_device.is_raid;
	}

	if (!device)
		return;

	if (is_raid) {
		raid_device = device;
		rc = scsi_add_device(ioc->shost, RAID_CHANNEL,
		    raid_device->id, 0);
		if (rc)
			_scsih_raid_device_remove(ioc, raid_device);
	} else {
		sas_device = device;
		handle = sas_device->handle;
6717
		sas_address_parent = sas_device->sas_address_parent;
E
Eric Moore 已提交
6718 6719 6720 6721 6722
		sas_address = sas_device->sas_address;
		spin_lock_irqsave(&ioc->sas_device_lock, flags);
		list_move_tail(&sas_device->list, &ioc->sas_device_list);
		spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
		if (!mpt2sas_transport_port_add(ioc, sas_device->handle,
6723
		    sas_device->sas_address_parent)) {
E
Eric Moore 已提交
6724 6725 6726
			_scsih_sas_device_remove(ioc, sas_device);
		} else if (!sas_device->starget) {
			mpt2sas_transport_port_remove(ioc, sas_address,
6727
			    sas_address_parent);
E
Eric Moore 已提交
6728 6729 6730 6731 6732 6733 6734 6735 6736 6737 6738 6739 6740 6741 6742 6743 6744 6745 6746 6747 6748 6749 6750 6751 6752 6753 6754 6755 6756
			_scsih_sas_device_remove(ioc, sas_device);
		}
	}
}

/**
 * _scsih_probe_raid - reporting raid volumes to scsi-ml
 * @ioc: per adapter object
 *
 * Called during initial loading of the driver.
 */
static void
_scsih_probe_raid(struct MPT2SAS_ADAPTER *ioc)
{
	struct _raid_device *raid_device, *raid_next;
	int rc;

	list_for_each_entry_safe(raid_device, raid_next,
	    &ioc->raid_device_list, list) {
		if (raid_device->starget)
			continue;
		rc = scsi_add_device(ioc->shost, RAID_CHANNEL,
		    raid_device->id, 0);
		if (rc)
			_scsih_raid_device_remove(ioc, raid_device);
	}
}

/**
6757
 * _scsih_probe_sas - reporting sas devices to sas transport
E
Eric Moore 已提交
6758 6759 6760 6761 6762 6763 6764 6765 6766 6767 6768 6769 6770 6771 6772 6773 6774
 * @ioc: per adapter object
 *
 * Called during initial loading of the driver.
 */
static void
_scsih_probe_sas(struct MPT2SAS_ADAPTER *ioc)
{
	struct _sas_device *sas_device, *next;
	unsigned long flags;

	/* SAS Device List */
	list_for_each_entry_safe(sas_device, next, &ioc->sas_device_init_list,
	    list) {
		spin_lock_irqsave(&ioc->sas_device_lock, flags);
		list_move_tail(&sas_device->list, &ioc->sas_device_list);
		spin_unlock_irqrestore(&ioc->sas_device_lock, flags);

6775 6776
		if (!mpt2sas_transport_port_add(ioc, sas_device->handle,
		    sas_device->sas_address_parent)) {
E
Eric Moore 已提交
6777 6778
			_scsih_sas_device_remove(ioc, sas_device);
		} else if (!sas_device->starget) {
6779 6780 6781
			mpt2sas_transport_port_remove(ioc,
			    sas_device->sas_address,
			    sas_device->sas_address_parent);
E
Eric Moore 已提交
6782 6783 6784 6785 6786 6787 6788 6789 6790 6791 6792 6793 6794 6795 6796 6797 6798 6799 6800 6801 6802 6803 6804 6805 6806 6807 6808 6809 6810 6811 6812 6813 6814 6815 6816 6817 6818
			_scsih_sas_device_remove(ioc, sas_device);
		}
	}
}

/**
 * _scsih_probe_devices - probing for devices
 * @ioc: per adapter object
 *
 * Called during initial loading of the driver.
 */
static void
_scsih_probe_devices(struct MPT2SAS_ADAPTER *ioc)
{
	u16 volume_mapping_flags =
	    le16_to_cpu(ioc->ioc_pg8.IRVolumeMappingFlags) &
	    MPI2_IOCPAGE8_IRFLAGS_MASK_VOLUME_MAPPING_MODE;

	if (!(ioc->facts.ProtocolFlags & MPI2_IOCFACTS_PROTOCOL_SCSI_INITIATOR))
		return;  /* return when IOC doesn't support initiator mode */

	_scsih_probe_boot_devices(ioc);

	if (ioc->ir_firmware) {
		if ((volume_mapping_flags &
		     MPI2_IOCPAGE8_IRFLAGS_HIGH_VOLUME_MAPPING)) {
			_scsih_probe_sas(ioc);
			_scsih_probe_raid(ioc);
		} else {
			_scsih_probe_raid(ioc);
			_scsih_probe_sas(ioc);
		}
	} else
		_scsih_probe_sas(ioc);
}

/**
6819
 * _scsih_probe - attach and add scsi host
E
Eric Moore 已提交
6820 6821 6822 6823 6824 6825
 * @pdev: PCI device struct
 * @id: pci device id
 *
 * Returns 0 success, anything else error.
 */
static int
6826
_scsih_probe(struct pci_dev *pdev, const struct pci_device_id *id)
E
Eric Moore 已提交
6827 6828 6829 6830 6831 6832 6833 6834 6835 6836 6837 6838 6839
{
	struct MPT2SAS_ADAPTER *ioc;
	struct Scsi_Host *shost;

	shost = scsi_host_alloc(&scsih_driver_template,
	    sizeof(struct MPT2SAS_ADAPTER));
	if (!shost)
		return -ENODEV;

	/* init local params */
	ioc = shost_priv(shost);
	memset(ioc, 0, sizeof(struct MPT2SAS_ADAPTER));
	INIT_LIST_HEAD(&ioc->list);
6840
	list_add_tail(&ioc->list, &mpt2sas_ioc_list);
E
Eric Moore 已提交
6841 6842 6843 6844 6845 6846 6847 6848 6849
	ioc->shost = shost;
	ioc->id = mpt_ids++;
	sprintf(ioc->name, "%s%d", MPT2SAS_DRIVER_NAME, ioc->id);
	ioc->pdev = pdev;
	ioc->scsi_io_cb_idx = scsi_io_cb_idx;
	ioc->tm_cb_idx = tm_cb_idx;
	ioc->ctl_cb_idx = ctl_cb_idx;
	ioc->base_cb_idx = base_cb_idx;
	ioc->transport_cb_idx = transport_cb_idx;
6850
	ioc->scsih_cb_idx = scsih_cb_idx;
E
Eric Moore 已提交
6851
	ioc->config_cb_idx = config_cb_idx;
6852
	ioc->tm_tr_cb_idx = tm_tr_cb_idx;
6853
	ioc->tm_tr_volume_cb_idx = tm_tr_volume_cb_idx;
6854
	ioc->tm_sas_control_cb_idx = tm_sas_control_cb_idx;
E
Eric Moore 已提交
6855 6856
	ioc->logging_level = logging_level;
	/* misc semaphores and spin locks */
6857
	mutex_init(&ioc->reset_in_progress_mutex);
E
Eric Moore 已提交
6858 6859 6860 6861 6862 6863 6864 6865 6866 6867 6868 6869 6870
	spin_lock_init(&ioc->ioc_reset_in_progress_lock);
	spin_lock_init(&ioc->scsi_lookup_lock);
	spin_lock_init(&ioc->sas_device_lock);
	spin_lock_init(&ioc->sas_node_lock);
	spin_lock_init(&ioc->fw_event_lock);
	spin_lock_init(&ioc->raid_device_lock);

	INIT_LIST_HEAD(&ioc->sas_device_list);
	INIT_LIST_HEAD(&ioc->sas_device_init_list);
	INIT_LIST_HEAD(&ioc->sas_expander_list);
	INIT_LIST_HEAD(&ioc->fw_event_list);
	INIT_LIST_HEAD(&ioc->raid_device_list);
	INIT_LIST_HEAD(&ioc->sas_hba.sas_port_list);
6871
	INIT_LIST_HEAD(&ioc->delayed_tr_list);
6872
	INIT_LIST_HEAD(&ioc->delayed_tr_volume_list);
E
Eric Moore 已提交
6873 6874

	/* init shost parameters */
6875
	shost->max_cmd_len = 32;
E
Eric Moore 已提交
6876 6877 6878 6879 6880 6881 6882 6883 6884 6885 6886
	shost->max_lun = max_lun;
	shost->transportt = mpt2sas_transport_template;
	shost->unique_id = ioc->id;

	if ((scsi_add_host(shost, &pdev->dev))) {
		printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
		    ioc->name, __FILE__, __LINE__, __func__);
		list_del(&ioc->list);
		goto out_add_shost_fail;
	}

E
Eric Moore 已提交
6887
	scsi_host_set_prot(shost, SHOST_DIF_TYPE1_PROTECTION
6888
	    | SHOST_DIF_TYPE2_PROTECTION | SHOST_DIF_TYPE3_PROTECTION);
6889
	scsi_host_set_guard(shost, SHOST_DIX_GUARD_CRC);
E
Eric Moore 已提交
6890

E
Eric Moore 已提交
6891 6892 6893 6894 6895 6896 6897 6898 6899 6900 6901 6902 6903 6904 6905 6906 6907 6908 6909 6910 6911 6912 6913 6914 6915 6916 6917 6918 6919 6920 6921 6922 6923
	/* event thread */
	snprintf(ioc->firmware_event_name, sizeof(ioc->firmware_event_name),
	    "fw_event%d", ioc->id);
	ioc->firmware_event_thread = create_singlethread_workqueue(
	    ioc->firmware_event_name);
	if (!ioc->firmware_event_thread) {
		printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
		    ioc->name, __FILE__, __LINE__, __func__);
		goto out_thread_fail;
	}

	ioc->wait_for_port_enable_to_complete = 1;
	if ((mpt2sas_base_attach(ioc))) {
		printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
		    ioc->name, __FILE__, __LINE__, __func__);
		goto out_attach_fail;
	}

	ioc->wait_for_port_enable_to_complete = 0;
	_scsih_probe_devices(ioc);
	return 0;

 out_attach_fail:
	destroy_workqueue(ioc->firmware_event_thread);
 out_thread_fail:
	list_del(&ioc->list);
	scsi_remove_host(shost);
 out_add_shost_fail:
	return -ENODEV;
}

#ifdef CONFIG_PM
/**
6924
 * _scsih_suspend - power management suspend main entry point
E
Eric Moore 已提交
6925 6926 6927 6928 6929 6930
 * @pdev: PCI device struct
 * @state: PM state change to (usually PCI_D3)
 *
 * Returns 0 success, anything else error.
 */
static int
6931
_scsih_suspend(struct pci_dev *pdev, pm_message_t state)
E
Eric Moore 已提交
6932 6933 6934 6935 6936
{
	struct Scsi_Host *shost = pci_get_drvdata(pdev);
	struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
	u32 device_state;

6937
	mpt2sas_base_stop_watchdog(ioc);
E
Eric Moore 已提交
6938 6939 6940 6941 6942 6943 6944 6945 6946 6947 6948 6949 6950 6951 6952
	flush_scheduled_work();
	scsi_block_requests(shost);
	device_state = pci_choose_state(pdev, state);
	printk(MPT2SAS_INFO_FMT "pdev=0x%p, slot=%s, entering "
	    "operating state [D%d]\n", ioc->name, pdev,
	    pci_name(pdev), device_state);

	mpt2sas_base_free_resources(ioc);
	pci_save_state(pdev);
	pci_disable_device(pdev);
	pci_set_power_state(pdev, device_state);
	return 0;
}

/**
6953
 * _scsih_resume - power management resume main entry point
E
Eric Moore 已提交
6954 6955 6956 6957 6958
 * @pdev: PCI device struct
 *
 * Returns 0 success, anything else error.
 */
static int
6959
_scsih_resume(struct pci_dev *pdev)
E
Eric Moore 已提交
6960 6961 6962 6963 6964 6965 6966 6967 6968 6969 6970 6971 6972 6973 6974 6975 6976 6977 6978 6979
{
	struct Scsi_Host *shost = pci_get_drvdata(pdev);
	struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
	u32 device_state = pdev->current_state;
	int r;

	printk(MPT2SAS_INFO_FMT "pdev=0x%p, slot=%s, previous "
	    "operating state [D%d]\n", ioc->name, pdev,
	    pci_name(pdev), device_state);

	pci_set_power_state(pdev, PCI_D0);
	pci_enable_wake(pdev, PCI_D0, 0);
	pci_restore_state(pdev);
	ioc->pdev = pdev;
	r = mpt2sas_base_map_resources(ioc);
	if (r)
		return r;

	mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP, SOFT_RESET);
	scsi_unblock_requests(shost);
6980
	mpt2sas_base_start_watchdog(ioc);
E
Eric Moore 已提交
6981 6982 6983 6984
	return 0;
}
#endif /* CONFIG_PM */

6985 6986 6987 6988 6989 6990 6991 6992 6993 6994 6995 6996 6997 6998 6999 7000 7001 7002 7003 7004 7005 7006 7007
/**
 * _scsih_pci_error_detected - Called when a PCI error is detected.
 * @pdev: PCI device struct
 * @state: PCI channel state
 *
 * Description: Called when a PCI error is detected.
 *
 * Return value:
 *      PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT
 */
static pci_ers_result_t
_scsih_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
{
	struct Scsi_Host *shost = pci_get_drvdata(pdev);
	struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);

	printk(MPT2SAS_INFO_FMT "PCI error: detected callback, state(%d)!!\n",
	    ioc->name, state);

	switch (state) {
	case pci_channel_io_normal:
		return PCI_ERS_RESULT_CAN_RECOVER;
	case pci_channel_io_frozen:
7008 7009
		/* Fatal error, prepare for slot reset */
		ioc->pci_error_recovery = 1;
7010 7011 7012 7013 7014
		scsi_block_requests(ioc->shost);
		mpt2sas_base_stop_watchdog(ioc);
		mpt2sas_base_free_resources(ioc);
		return PCI_ERS_RESULT_NEED_RESET;
	case pci_channel_io_perm_failure:
7015 7016 7017 7018
		/* Permanent error, prepare for device removal */
		ioc->pci_error_recovery = 1;
		mpt2sas_base_stop_watchdog(ioc);
		_scsih_flush_running_cmds(ioc);
7019 7020 7021 7022 7023 7024 7025 7026 7027 7028 7029 7030 7031 7032 7033 7034 7035 7036 7037 7038 7039 7040 7041
		return PCI_ERS_RESULT_DISCONNECT;
	}
	return PCI_ERS_RESULT_NEED_RESET;
}

/**
 * _scsih_pci_slot_reset - Called when PCI slot has been reset.
 * @pdev: PCI device struct
 *
 * Description: This routine is called by the pci error recovery
 * code after the PCI slot has been reset, just before we
 * should resume normal operations.
 */
static pci_ers_result_t
_scsih_pci_slot_reset(struct pci_dev *pdev)
{
	struct Scsi_Host *shost = pci_get_drvdata(pdev);
	struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
	int rc;

	printk(MPT2SAS_INFO_FMT "PCI error: slot reset callback!!\n",
		ioc->name);

7042
	ioc->pci_error_recovery = 0;
7043
	ioc->pdev = pdev;
7044
	pci_restore_state(pdev);
7045 7046 7047 7048 7049 7050 7051 7052 7053 7054 7055 7056 7057 7058 7059 7060 7061 7062 7063 7064 7065 7066 7067 7068 7069 7070 7071 7072 7073 7074 7075 7076 7077 7078 7079 7080 7081 7082 7083 7084 7085 7086 7087 7088 7089 7090 7091 7092 7093 7094 7095 7096 7097 7098 7099 7100 7101 7102 7103 7104 7105 7106 7107
	rc = mpt2sas_base_map_resources(ioc);
	if (rc)
		return PCI_ERS_RESULT_DISCONNECT;


	rc = mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP,
	    FORCE_BIG_HAMMER);

	printk(MPT2SAS_WARN_FMT "hard reset: %s\n", ioc->name,
	    (rc == 0) ? "success" : "failed");

	if (!rc)
		return PCI_ERS_RESULT_RECOVERED;
	else
		return PCI_ERS_RESULT_DISCONNECT;
}

/**
 * _scsih_pci_resume() - resume normal ops after PCI reset
 * @pdev: pointer to PCI device
 *
 * Called when the error recovery driver tells us that its
 * OK to resume normal operation. Use completion to allow
 * halted scsi ops to resume.
 */
static void
_scsih_pci_resume(struct pci_dev *pdev)
{
	struct Scsi_Host *shost = pci_get_drvdata(pdev);
	struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);

	printk(MPT2SAS_INFO_FMT "PCI error: resume callback!!\n", ioc->name);

	pci_cleanup_aer_uncorrect_error_status(pdev);
	mpt2sas_base_start_watchdog(ioc);
	scsi_unblock_requests(ioc->shost);
}

/**
 * _scsih_pci_mmio_enabled - Enable MMIO and dump debug registers
 * @pdev: pointer to PCI device
 */
static pci_ers_result_t
_scsih_pci_mmio_enabled(struct pci_dev *pdev)
{
	struct Scsi_Host *shost = pci_get_drvdata(pdev);
	struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);

	printk(MPT2SAS_INFO_FMT "PCI error: mmio enabled callback!!\n",
	    ioc->name);

	/* TODO - dump whatever for debugging purposes */

	/* Request a slot reset. */
	return PCI_ERS_RESULT_NEED_RESET;
}

static struct pci_error_handlers _scsih_err_handler = {
	.error_detected = _scsih_pci_error_detected,
	.mmio_enabled = _scsih_pci_mmio_enabled,
	.slot_reset =	_scsih_pci_slot_reset,
	.resume =	_scsih_pci_resume,
};
E
Eric Moore 已提交
7108 7109 7110 7111

static struct pci_driver scsih_driver = {
	.name		= MPT2SAS_DRIVER_NAME,
	.id_table	= scsih_pci_table,
7112 7113
	.probe		= _scsih_probe,
	.remove		= __devexit_p(_scsih_remove),
7114
	.shutdown	= _scsih_shutdown,
7115
	.err_handler	= &_scsih_err_handler,
E
Eric Moore 已提交
7116
#ifdef CONFIG_PM
7117 7118
	.suspend	= _scsih_suspend,
	.resume		= _scsih_resume,
E
Eric Moore 已提交
7119 7120 7121
#endif
};

7122 7123 7124 7125 7126 7127 7128
/* raid transport support */
static struct raid_function_template mpt2sas_raid_functions = {
	.cookie		= &scsih_driver_template,
	.is_raid	= _scsih_is_raid,
	.get_resync	= _scsih_get_resync,
	.get_state	= _scsih_get_state,
};
E
Eric Moore 已提交
7129 7130

/**
7131
 * _scsih_init - main entry point for this driver.
E
Eric Moore 已提交
7132 7133 7134 7135
 *
 * Returns 0 success, anything else error.
 */
static int __init
7136
_scsih_init(void)
E
Eric Moore 已提交
7137 7138 7139 7140 7141 7142 7143 7144 7145 7146 7147
{
	int error;

	mpt_ids = 0;
	printk(KERN_INFO "%s version %s loaded\n", MPT2SAS_DRIVER_NAME,
	    MPT2SAS_DRIVER_VERSION);

	mpt2sas_transport_template =
	    sas_attach_transport(&mpt2sas_transport_functions);
	if (!mpt2sas_transport_template)
		return -ENODEV;
7148 7149 7150 7151 7152 7153
	/* raid transport support */
	mpt2sas_raid_template = raid_class_attach(&mpt2sas_raid_functions);
	if (!mpt2sas_raid_template) {
		sas_release_transport(mpt2sas_transport_template);
		return -ENODEV;
	}
E
Eric Moore 已提交
7154 7155 7156 7157

	mpt2sas_base_initialize_callback_handler();

	 /* queuecommand callback hander */
7158
	scsi_io_cb_idx = mpt2sas_base_register_callback_handler(_scsih_io_done);
E
Eric Moore 已提交
7159

7160
	/* task management callback handler */
7161
	tm_cb_idx = mpt2sas_base_register_callback_handler(_scsih_tm_done);
E
Eric Moore 已提交
7162 7163 7164 7165 7166 7167 7168 7169

	/* base internal commands callback handler */
	base_cb_idx = mpt2sas_base_register_callback_handler(mpt2sas_base_done);

	/* transport internal commands callback handler */
	transport_cb_idx = mpt2sas_base_register_callback_handler(
	    mpt2sas_transport_done);

7170 7171 7172
	/* scsih internal commands callback handler */
	scsih_cb_idx = mpt2sas_base_register_callback_handler(_scsih_done);

E
Eric Moore 已提交
7173 7174 7175 7176 7177 7178 7179
	/* configuration page API internal commands callback handler */
	config_cb_idx = mpt2sas_base_register_callback_handler(
	    mpt2sas_config_done);

	/* ctl module callback handler */
	ctl_cb_idx = mpt2sas_base_register_callback_handler(mpt2sas_ctl_done);

7180 7181
	tm_tr_cb_idx = mpt2sas_base_register_callback_handler(
	    _scsih_tm_tr_complete);
7182 7183 7184 7185

	tm_tr_volume_cb_idx = mpt2sas_base_register_callback_handler(
	    _scsih_tm_volume_tr_complete);

7186 7187 7188
	tm_sas_control_cb_idx = mpt2sas_base_register_callback_handler(
	    _scsih_sas_control_complete);

E
Eric Moore 已提交
7189 7190 7191
	mpt2sas_ctl_init();

	error = pci_register_driver(&scsih_driver);
7192 7193 7194
	if (error) {
		/* raid transport support */
		raid_class_release(mpt2sas_raid_template);
E
Eric Moore 已提交
7195
		sas_release_transport(mpt2sas_transport_template);
7196
	}
E
Eric Moore 已提交
7197 7198 7199 7200 7201

	return error;
}

/**
7202
 * _scsih_exit - exit point for this driver (when it is a module).
E
Eric Moore 已提交
7203 7204 7205 7206
 *
 * Returns 0 success, anything else error.
 */
static void __exit
7207
_scsih_exit(void)
E
Eric Moore 已提交
7208 7209 7210 7211 7212 7213
{
	printk(KERN_INFO "mpt2sas version %s unloading\n",
	    MPT2SAS_DRIVER_VERSION);

	pci_unregister_driver(&scsih_driver);

7214 7215
	mpt2sas_ctl_exit();

E
Eric Moore 已提交
7216 7217 7218 7219
	mpt2sas_base_release_callback_handler(scsi_io_cb_idx);
	mpt2sas_base_release_callback_handler(tm_cb_idx);
	mpt2sas_base_release_callback_handler(base_cb_idx);
	mpt2sas_base_release_callback_handler(transport_cb_idx);
7220
	mpt2sas_base_release_callback_handler(scsih_cb_idx);
E
Eric Moore 已提交
7221 7222 7223
	mpt2sas_base_release_callback_handler(config_cb_idx);
	mpt2sas_base_release_callback_handler(ctl_cb_idx);

7224
	mpt2sas_base_release_callback_handler(tm_tr_cb_idx);
7225
	mpt2sas_base_release_callback_handler(tm_tr_volume_cb_idx);
7226 7227
	mpt2sas_base_release_callback_handler(tm_sas_control_cb_idx);

7228 7229 7230 7231
	/* raid transport support */
	raid_class_release(mpt2sas_raid_template);
	sas_release_transport(mpt2sas_transport_template);

E
Eric Moore 已提交
7232 7233
}

7234 7235
module_init(_scsih_init);
module_exit(_scsih_exit);