mpt2sas_scsih.c 237.5 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
 *  (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/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>
54
#include <linux/aer.h>
55
#include <linux/raid_class.h>
56
#include <linux/slab.h>
E
Eric Moore 已提交
57 58 59 60 61 62 63 64 65 66 67 68 69 70 71

#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);

72 73
static u8 _scsih_check_for_pending_tm(struct MPT2SAS_ADAPTER *ioc, u16 smid);

74 75 76
static void _scsih_scan_start(struct Scsi_Host *shost);
static int _scsih_scan_finished(struct Scsi_Host *shost, unsigned long time);

E
Eric Moore 已提交
77
/* global parameters */
78
LIST_HEAD(mpt2sas_ioc_list);
E
Eric Moore 已提交
79 80 81 82 83 84

/* 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;
85
static u8 port_enable_cb_idx = -1;
E
Eric Moore 已提交
86
static u8 transport_cb_idx = -1;
87
static u8 scsih_cb_idx = -1;
E
Eric Moore 已提交
88 89 90
static u8 config_cb_idx = -1;
static int mpt_ids;

91
static u8 tm_tr_cb_idx = -1 ;
92
static u8 tm_tr_volume_cb_idx = -1 ;
93 94
static u8 tm_sas_control_cb_idx = -1;

E
Eric Moore 已提交
95
/* command line options */
96
static u32 logging_level;
E
Eric Moore 已提交
97 98 99
MODULE_PARM_DESC(logging_level, " bits for enabling additional logging info "
    "(default=0)");

100 101 102 103
static ushort max_sectors = 0xFFFF;
module_param(max_sectors, ushort, 0);
MODULE_PARM_DESC(max_sectors, "max sectors, range 64 to 8192  default=8192");

E
Eric Moore 已提交
104 105 106 107 108 109
/* 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 ");

110 111 112 113 114 115 116 117 118 119 120 121
/* diag_buffer_enable is bitwise
 * bit 0 set = TRACE
 * bit 1 set = SNAPSHOT
 * bit 2 set = EXTENDED
 *
 * Either bit can be set, or both
 */
static int diag_buffer_enable = -1;
module_param(diag_buffer_enable, int, 0);
MODULE_PARM_DESC(diag_buffer_enable, " post diag buffers "
	"(TRACE=1/SNAPSHOT=2/EXTENDED=4/default=0)");

E
Eric Moore 已提交
122 123 124 125 126 127 128 129 130 131 132 133 134
/**
 * 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;
};


135
#define MPT2SAS_TURN_ON_FAULT_LED (0xFFFC)
136 137
#define MPT2SAS_PORT_ENABLE_COMPLETE (0xFFFD)
#define MPT2SAS_REMOVE_UNRESPONDING_DEVICES (0xFFFF)
E
Eric Moore 已提交
138 139 140 141
/**
 * struct fw_event_work - firmware event struct
 * @list: link list framework
 * @work: work object (ioc->fault_reset_work_q)
142
 * @cancel_pending_work: flag set during reset handling
E
Eric Moore 已提交
143
 * @ioc: per adapter object
144
 * @device_handle: device handle
E
Eric Moore 已提交
145
 * @VF_ID: virtual function id
146
 * @VP_ID: virtual port id
E
Eric Moore 已提交
147 148 149 150 151 152 153 154
 * @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;
155 156
	u8			cancel_pending_work;
	struct delayed_work	delayed_work;
E
Eric Moore 已提交
157
	struct MPT2SAS_ADAPTER *ioc;
158
	u16			device_handle;
E
Eric Moore 已提交
159
	u8			VF_ID;
160
	u8			VP_ID;
E
Eric Moore 已提交
161 162 163 164 165
	u8			ignore;
	u16			event;
	void			*event_data;
};

166 167 168
/* raid transport support */
static struct raid_template *mpt2sas_raid_template;

E
Eric Moore 已提交
169 170 171 172 173 174 175 176 177 178 179 180
/**
 * 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
181 182 183
 * @VF_ID: virtual function id
 * @VP_ID: virtual port id
 * @valid_reply: flag set for reply message
E
Eric Moore 已提交
184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204
 * @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;
205 206
	u8	VF_ID;
	u8	VP_ID;
E
Eric Moore 已提交
207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232
	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 },
233
	/* Meteor ~ 2116 */
E
Eric Moore 已提交
234 235 236 237
	{ 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 },
238 239 240 241 242 243 244 245 246 247 248 249 250
	/* 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 },
251 252
	/* Mustang ~ 2308 */
	{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2308_1,
253
		PCI_ANY_ID, PCI_ANY_ID },
254 255 256
	{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2308_2,
		PCI_ANY_ID, PCI_ANY_ID },
	{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2308_3,
257
		PCI_ANY_ID, PCI_ANY_ID },
258 259 260
	/* SSS6200 */
	{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SSS6200,
		PCI_ANY_ID, PCI_ANY_ID },
E
Eric Moore 已提交
261 262 263 264 265
	{0}	/* Terminating entry */
};
MODULE_DEVICE_TABLE(pci, scsih_pci_table);

/**
266
 * _scsih_set_debug_level - global setting of ioc->logging_level.
E
Eric Moore 已提交
267 268 269 270
 *
 * Note: The logging levels are defined in mpt2sas_debug.h.
 */
static int
271
_scsih_set_debug_level(const char *val, struct kernel_param *kp)
E
Eric Moore 已提交
272 273 274 275 276 277 278 279
{
	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);
280
	list_for_each_entry(ioc, &mpt2sas_ioc_list, list)
E
Eric Moore 已提交
281 282 283
		ioc->logging_level = logging_level;
	return 0;
}
284
module_param_call(logging_level, _scsih_set_debug_level, param_get_int,
E
Eric Moore 已提交
285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376
    &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;
}

377 378 379 380 381 382 383 384 385 386 387 388 389 390
/**
 * _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;
391
	*sas_address = 0;
392 393 394 395

	if (handle <= ioc->sas_hba.num_phys) {
		*sas_address = ioc->sas_hba.sas_address;
		return 0;
396
	}
397 398 399

	if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
	    MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) {
400 401
		printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n", ioc->name,
		__FILE__, __LINE__, __func__);
402 403 404
		return -ENXIO;
	}

405 406 407 408
	ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & MPI2_IOCSTATUS_MASK;
	if (ioc_status == MPI2_IOCSTATUS_SUCCESS) {
		*sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
		return 0;
409 410
	}

411 412 413 414 415 416 417 418
	/* we hit this becuase the given parent handle doesn't exist */
	if (ioc_status == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE)
		return -ENXIO;
	/* else error case */
	printk(MPT2SAS_ERR_FMT "handle(0x%04x), ioc_status(0x%04x), "
	    "failure at %s:%d/%s()!\n", ioc->name, handle, ioc_status,
	     __FILE__, __LINE__, __func__);
	return -EIO;
419 420
}

E
Eric Moore 已提交
421 422 423 424 425 426 427
/**
 * _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
L
Lucas De Marchi 已提交
428
 * to scsi-ml or sas transport, this purpose is for persistent boot device.
E
Eric Moore 已提交
429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445
 * 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 */
446 447 448 449 450
	if (!ioc->is_driver_loading)
		return;

	 /* no Bios, return immediately */
	if (!ioc->bios_pg3.BiosVersion)
E
Eric Moore 已提交
451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472
		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)) {
473
			dinitprintk(ioc, printk(MPT2SAS_INFO_FMT
E
Eric Moore 已提交
474 475 476 477 478 479 480 481 482 483 484 485 486 487
			   "%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)) {
488
			dinitprintk(ioc, printk(MPT2SAS_INFO_FMT
E
Eric Moore 已提交
489 490 491 492 493 494 495 496 497 498 499 500 501 502
			   "%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)) {
503
			dinitprintk(ioc, printk(MPT2SAS_INFO_FMT
E
Eric Moore 已提交
504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525
			   "%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)
{
526
	struct _sas_device *sas_device;
E
Eric Moore 已提交
527

528 529 530 531 532 533 534 535 536
	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
537 538 539 540 541 542 543 544 545 546 547 548 549 550
}

/**
 * _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)
{
551 552 553 554 555 556 557 558 559
	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
560

561
	return NULL;
E
Eric Moore 已提交
562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577
}

/**
 * _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;

578 579 580
	if (!sas_device)
		return;

E
Eric Moore 已提交
581
	spin_lock_irqsave(&ioc->sas_device_lock, flags);
582 583 584 585 586
	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
587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603
	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;

604
	dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: handle"
E
Eric Moore 已提交
605 606 607 608 609 610 611
	    "(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);

612
	if (!mpt2sas_transport_port_add(ioc, sas_device->handle,
613
	     sas_device->sas_address_parent)) {
E
Eric Moore 已提交
614
		_scsih_sas_device_remove(ioc, sas_device);
615 616 617 618 619 620 621 622 623 624 625
	} else if (!sas_device->starget) {
		/* When asyn scanning is enabled, its not possible to remove
		 * devices while scanning is turned on due to an oops in
		 * scsi_sysfs_add_sdev()->add_device()->sysfs_addrm_start()
		 */
		if (!ioc->is_driver_loading)
			mpt2sas_transport_port_remove(ioc,
			sas_device->sas_address,
			sas_device->sas_address_parent);
		_scsih_sas_device_remove(ioc, sas_device);
	}
E
Eric Moore 已提交
626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641
}

/**
 * _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;

642
	dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: handle"
E
Eric Moore 已提交
643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743
	    "(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;

744
	dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: handle"
E
Eric Moore 已提交
745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772
	    "(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);
}

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
/**
 * 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
798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864
/**
 * 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;
}

/**
865
 * _scsih_scsi_lookup_get - returns scmd entry
E
Eric Moore 已提交
866 867 868 869 870 871 872 873
 * @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)
{
874
	return ioc->scsi_lookup[smid - 1].scmd;
E
Eric Moore 已提交
875 876
}

877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898
/**
 * _scsih_scsi_lookup_get_clear - returns scmd entry
 * @ioc: per adapter object
 * @smid: system request message index
 *
 * Returns the smid stored scmd pointer.
 * Then will derefrence the stored scmd pointer.
 */
static inline struct scsi_cmnd *
_scsih_scsi_lookup_get_clear(struct MPT2SAS_ADAPTER *ioc, u16 smid)
{
	unsigned long flags;
	struct scsi_cmnd *scmd;

	spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
	scmd = ioc->scsi_lookup[smid - 1].scmd;
	ioc->scsi_lookup[smid - 1].scmd = NULL;
	spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);

	return scmd;
}

E
Eric Moore 已提交
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_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;
919
	for (i = 0; i < ioc->scsiio_depth; i++) {
E
Eric Moore 已提交
920
		if (ioc->scsi_lookup[i].scmd == scmd) {
921
			smid = ioc->scsi_lookup[i].smid;
E
Eric Moore 已提交
922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949
			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;
950
	for (i = 0 ; i < ioc->scsiio_depth; i++) {
E
Eric Moore 已提交
951 952 953 954 955 956 957 958 959 960 961 962
		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
963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983
/**
 * _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;
984
	for (i = 0 ; i < ioc->scsiio_depth; i++) {
E
Eric Moore 已提交
985 986 987 988 989 990 991 992 993 994 995 996 997
		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
998
/**
999
 * _scsih_get_chain_buffer_tracker - obtain chain tracker
E
Eric Moore 已提交
1000
 * @ioc: per adapter object
1001
 * @smid: smid associated to an IO request
E
Eric Moore 已提交
1002
 *
1003
 * Returns chain tracker(from ioc->free_chain_list)
E
Eric Moore 已提交
1004
 */
1005 1006
static struct chain_tracker *
_scsih_get_chain_buffer_tracker(struct MPT2SAS_ADAPTER *ioc, u16 smid)
E
Eric Moore 已提交
1007
{
1008 1009
	struct chain_tracker *chain_req;
	unsigned long flags;
E
Eric Moore 已提交
1010

1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024
	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
1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049
}

/**
 * _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;
1050
	int sges_left;
E
Eric Moore 已提交
1051 1052 1053 1054
	u32 sges_in_segment;
	u32 sgl_flags;
	u32 sgl_flags_last_element;
	u32 sgl_flags_end_buffer;
1055
	struct chain_tracker *chain_req;
E
Eric Moore 已提交
1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071

	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);
1072
	if (sges_left < 0) {
E
Eric Moore 已提交
1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102
		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;
1103 1104 1105 1106 1107
	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
1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142
	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--;
		}

1143 1144 1145 1146 1147
		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
1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169
	} 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;
}

/**
1170
 * _scsih_adjust_queue_depth - setting device queue depth
E
Eric Moore 已提交
1171 1172 1173
 * @sdev: scsi device struct
 * @qdepth: requested queue depth
 *
1174 1175
 *
 * Returns nothing
E
Eric Moore 已提交
1176
 */
1177 1178
static void
_scsih_adjust_queue_depth(struct scsi_device *sdev, int qdepth)
E
Eric Moore 已提交
1179 1180 1181
{
	struct Scsi_Host *shost = sdev->host;
	int max_depth;
1182 1183 1184 1185 1186
	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
1187 1188

	max_depth = shost->can_queue;
1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208

	/* 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
1209 1210 1211 1212
	if (!sdev->tagged_supported)
		max_depth = 1;
	if (qdepth > max_depth)
		qdepth = max_depth;
1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233
	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
1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245

	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;
}

/**
1246
 * _scsih_change_queue_type - changing device queue tag type
E
Eric Moore 已提交
1247 1248 1249 1250 1251 1252
 * @sdev: scsi device struct
 * @tag_type: requested tag type
 *
 * Returns queue tag type.
 */
static int
1253
_scsih_change_queue_type(struct scsi_device *sdev, int tag_type)
E
Eric Moore 已提交
1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267
{
	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;
}

/**
1268
 * _scsih_target_alloc - target add routine
E
Eric Moore 已提交
1269 1270 1271 1272 1273 1274
 * @starget: scsi target struct
 *
 * Returns 0 if ok. Any other return is assumed to be an error and
 * the device is ignored.
 */
static int
1275
_scsih_target_alloc(struct scsi_target *starget)
E
Eric Moore 已提交
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 1301
{
	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;
1302
			sas_target_priv_data->raid_device = raid_device;
E
Eric Moore 已提交
1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320
			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;
1321
		if (test_bit(sas_device->handle, ioc->pd_handles))
E
Eric Moore 已提交
1322 1323 1324 1325 1326 1327 1328 1329 1330
			sas_target_priv_data->flags |=
			    MPT_TARGET_FLAGS_RAID_COMPONENT;
	}
	spin_unlock_irqrestore(&ioc->sas_device_lock, flags);

	return 0;
}

/**
1331
 * _scsih_target_destroy - target destroy routine
E
Eric Moore 已提交
1332 1333 1334 1335 1336
 * @starget: scsi target struct
 *
 * Returns nothing.
 */
static void
1337
_scsih_target_destroy(struct scsi_target *starget)
E
Eric Moore 已提交
1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366
{
	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);
1367 1368 1369
	if (sas_device && (sas_device->starget == starget) &&
	    (sas_device->id == starget->id) &&
	    (sas_device->channel == starget->channel))
E
Eric Moore 已提交
1370 1371 1372 1373 1374 1375 1376 1377 1378 1379
		sas_device->starget = NULL;

	spin_unlock_irqrestore(&ioc->sas_device_lock, flags);

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

/**
1380
 * _scsih_slave_alloc - device add routine
E
Eric Moore 已提交
1381 1382 1383 1384 1385 1386
 * @sdev: scsi device struct
 *
 * Returns 0 if ok. Any other return is assumed to be an error and
 * the device is ignored.
 */
static int
1387
_scsih_slave_alloc(struct scsi_device *sdev)
E
Eric Moore 已提交
1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412 1413 1414 1415 1416 1417 1418 1419 1420 1421 1422 1423 1424 1425 1426
{
	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;
}

/**
1427
 * _scsih_slave_destroy - device destroy routine
E
Eric Moore 已提交
1428 1429 1430 1431 1432
 * @sdev: scsi device struct
 *
 * Returns nothing.
 */
static void
1433
_scsih_slave_destroy(struct scsi_device *sdev)
E
Eric Moore 已提交
1434 1435 1436
{
	struct MPT2SAS_TARGET *sas_target_priv_data;
	struct scsi_target *starget;
1437 1438 1439 1440
	struct Scsi_Host *shost;
	struct MPT2SAS_ADAPTER *ioc;
	struct _sas_device *sas_device;
	unsigned long flags;
E
Eric Moore 已提交
1441 1442 1443 1444 1445 1446 1447

	if (!sdev->hostdata)
		return;

	starget = scsi_target(sdev);
	sas_target_priv_data = starget->hostdata;
	sas_target_priv_data->num_luns--;
1448 1449 1450 1451 1452 1453 1454 1455

	shost = dev_to_shost(&starget->dev);
	ioc = shost_priv(shost);

	if (!(sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME)) {
		spin_lock_irqsave(&ioc->sas_device_lock, flags);
		sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
		   sas_target_priv_data->sas_address);
1456
		if (sas_device && !sas_target_priv_data->num_luns)
1457 1458 1459 1460
			sas_device->starget = NULL;
		spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
	}

E
Eric Moore 已提交
1461 1462 1463 1464 1465
	kfree(sdev->hostdata);
	sdev->hostdata = NULL;
}

/**
1466
 * _scsih_display_sata_capabilities - sata capabilities
E
Eric Moore 已提交
1467 1468 1469 1470 1471
 * @ioc: per adapter object
 * @sas_device: the sas_device object
 * @sdev: scsi device struct
 */
static void
1472
_scsih_display_sata_capabilities(struct MPT2SAS_ADAPTER *ioc,
E
Eric Moore 已提交
1473 1474 1475 1476 1477 1478 1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496
    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);
1497
	device_info = le32_to_cpu(sas_device_pg0.DeviceInfo);
E
Eric Moore 已提交
1498 1499 1500 1501 1502 1503 1504 1505 1506 1507 1508 1509 1510

	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");
}

1511 1512 1513 1514 1515 1516 1517 1518
/**
 * _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);
1519
	struct MPT2SAS_ADAPTER *ioc = shost_priv(sdev->host);
1520

1521 1522
	if (ioc->is_warpdrive)
		return 0;
1523 1524 1525 1526 1527 1528 1529 1530 1531 1532 1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 1543 1544 1545 1546
	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);

1547
	if (!raid_device || ioc->is_warpdrive)
1548 1549 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 1560 1561 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 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
		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
1648 1649 1650 1651
/**
 * _scsih_get_volume_capabilities - volume capabilities
 * @ioc: per adapter object
 * @sas_device: the raid_device object
1652 1653
 *
 * Returns 0 for success, else 1
E
Eric Moore 已提交
1654
 */
1655
static int
E
Eric Moore 已提交
1656 1657 1658 1659 1660 1661 1662 1663 1664 1665 1666 1667
_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) {
1668 1669 1670 1671
		dfailprintk(ioc, printk(MPT2SAS_WARN_FMT
		    "failure at %s:%d/%s()!\n", ioc->name, __FILE__, __LINE__,
		    __func__));
		return 1;
E
Eric Moore 已提交
1672 1673 1674 1675 1676 1677 1678
	}

	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) {
1679 1680 1681 1682
		dfailprintk(ioc, printk(MPT2SAS_WARN_FMT
		    "failure at %s:%d/%s()!\n", ioc->name, __FILE__, __LINE__,
		    __func__));
		return 1;
E
Eric Moore 已提交
1683 1684 1685 1686
	}

	if ((mpt2sas_config_get_raid_volume_pg0(ioc, &mpi_reply, vol_pg0,
	     MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, raid_device->handle, sz))) {
1687 1688 1689
		dfailprintk(ioc, printk(MPT2SAS_WARN_FMT
		    "failure at %s:%d/%s()!\n", ioc->name, __FILE__, __LINE__,
		    __func__));
E
Eric Moore 已提交
1690
		kfree(vol_pg0);
1691
		return 1;
E
Eric Moore 已提交
1692 1693 1694 1695 1696 1697 1698 1699 1700 1701 1702 1703 1704 1705 1706 1707 1708 1709 1710
	}

	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);
1711
	return 0;
E
Eric Moore 已提交
1712
}
1713 1714 1715 1716 1717 1718 1719 1720 1721 1722 1723 1724 1725 1726 1727 1728 1729 1730 1731 1732 1733 1734 1735 1736 1737 1738 1739 1740 1741 1742 1743 1744 1745 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 1778 1779 1780 1781 1782 1783 1784 1785 1786 1787 1788 1789 1790 1791 1792 1793 1794 1795 1796 1797 1798 1799 1800 1801 1802 1803 1804 1805 1806 1807 1808 1809 1810 1811 1812 1813 1814 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 1895 1896 1897 1898 1899 1900 1901 1902 1903 1904 1905 1906 1907 1908 1909 1910 1911 1912 1913 1914 1915 1916 1917 1918
/**
 * _scsih_disable_ddio - Disable direct I/O for all the volumes
 * @ioc: per adapter object
 */
static void
_scsih_disable_ddio(struct MPT2SAS_ADAPTER *ioc)
{
	Mpi2RaidVolPage1_t vol_pg1;
	Mpi2ConfigReply_t mpi_reply;
	struct _raid_device *raid_device;
	u16 handle;
	u16 ioc_status;

	handle = 0xFFFF;
	while (!(mpt2sas_config_get_raid_volume_pg1(ioc, &mpi_reply,
	    &vol_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(vol_pg1.DevHandle);
		raid_device = _scsih_raid_device_find_by_handle(ioc, handle);
		if (raid_device)
			raid_device->direct_io_enabled = 0;
	}
	return;
}


/**
 * _scsih_get_num_volumes - Get number of volumes in the ioc
 * @ioc: per adapter object
 */
static u8
_scsih_get_num_volumes(struct MPT2SAS_ADAPTER *ioc)
{
	Mpi2RaidVolPage1_t vol_pg1;
	Mpi2ConfigReply_t mpi_reply;
	u16 handle;
	u8 vol_cnt = 0;
	u16 ioc_status;

	handle = 0xFFFF;
	while (!(mpt2sas_config_get_raid_volume_pg1(ioc, &mpi_reply,
	    &vol_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;
		vol_cnt++;
		handle = le16_to_cpu(vol_pg1.DevHandle);
	}
	return vol_cnt;
}


/**
 * _scsih_init_warpdrive_properties - Set properties for warpdrive direct I/O.
 * @ioc: per adapter object
 * @raid_device: the raid_device object
 */
static void
_scsih_init_warpdrive_properties(struct MPT2SAS_ADAPTER *ioc,
	struct _raid_device *raid_device)
{
	Mpi2RaidVolPage0_t *vol_pg0;
	Mpi2RaidPhysDiskPage0_t pd_pg0;
	Mpi2ConfigReply_t mpi_reply;
	u16 sz;
	u8 num_pds, count;
	u64 mb = 1024 * 1024;
	u64 tb_2 = 2 * mb * mb;
	u64 capacity;
	u32 stripe_sz;
	u8 i, stripe_exp;

	if (!ioc->is_warpdrive)
		return;

	if (ioc->mfg_pg10_hide_flag ==  MFG_PAGE10_EXPOSE_ALL_DISKS) {
		printk(MPT2SAS_INFO_FMT "WarpDrive : Direct IO is disabled "
		    "globally as drives are exposed\n", ioc->name);
		return;
	}
	if (_scsih_get_num_volumes(ioc) > 1) {
		_scsih_disable_ddio(ioc);
		printk(MPT2SAS_INFO_FMT "WarpDrive : Direct IO is disabled "
		    "globally as number of drives > 1\n", ioc->name);
		return;
	}
	if ((mpt2sas_config_get_number_pds(ioc, raid_device->handle,
	    &num_pds)) || !num_pds) {
		printk(MPT2SAS_INFO_FMT "WarpDrive : Direct IO is disabled "
		    "Failure in computing number of drives\n", ioc->name);
		return;
	}

	sz = offsetof(Mpi2RaidVolPage0_t, PhysDisk) + (num_pds *
	    sizeof(Mpi2RaidVol0PhysDisk_t));
	vol_pg0 = kzalloc(sz, GFP_KERNEL);
	if (!vol_pg0) {
		printk(MPT2SAS_INFO_FMT "WarpDrive : Direct IO is disabled "
		    "Memory allocation failure for RVPG0\n", ioc->name);
		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_INFO_FMT "WarpDrive : Direct IO is disabled "
		    "Failure in retrieving RVPG0\n", ioc->name);
		kfree(vol_pg0);
		return;
	}

	/*
	 * WARPDRIVE:If number of physical disks in a volume exceeds the max pds
	 * assumed for WARPDRIVE, disable direct I/O
	 */
	if (num_pds > MPT_MAX_WARPDRIVE_PDS) {
		printk(MPT2SAS_WARN_FMT "WarpDrive : Direct IO is disabled "
		    "for the drive with handle(0x%04x): num_mem=%d, "
		    "max_mem_allowed=%d\n", ioc->name, raid_device->handle,
		    num_pds, MPT_MAX_WARPDRIVE_PDS);
		kfree(vol_pg0);
		return;
	}
	for (count = 0; count < num_pds; count++) {
		if (mpt2sas_config_get_phys_disk_pg0(ioc, &mpi_reply,
		    &pd_pg0, MPI2_PHYSDISK_PGAD_FORM_PHYSDISKNUM,
		    vol_pg0->PhysDisk[count].PhysDiskNum) ||
		    pd_pg0.DevHandle == MPT2SAS_INVALID_DEVICE_HANDLE) {
			printk(MPT2SAS_INFO_FMT "WarpDrive : Direct IO is "
			    "disabled for the drive with handle(0x%04x) member"
			    "handle retrieval failed for member number=%d\n",
			    ioc->name, raid_device->handle,
			    vol_pg0->PhysDisk[count].PhysDiskNum);
			goto out_error;
		}
		raid_device->pd_handle[count] = le16_to_cpu(pd_pg0.DevHandle);
	}

	/*
	 * Assumption for WD: Direct I/O is not supported if the volume is
	 * not RAID0, if the stripe size is not 64KB, if the block size is
	 * not 512 and if the volume size is >2TB
	 */
	if (raid_device->volume_type != MPI2_RAID_VOL_TYPE_RAID0 ||
	    le16_to_cpu(vol_pg0->BlockSize) != 512) {
		printk(MPT2SAS_INFO_FMT "WarpDrive : Direct IO is disabled "
		    "for the drive with handle(0x%04x): type=%d, "
		    "s_sz=%uK, blk_size=%u\n", ioc->name,
		    raid_device->handle, raid_device->volume_type,
		    le32_to_cpu(vol_pg0->StripeSize)/2,
		    le16_to_cpu(vol_pg0->BlockSize));
		goto out_error;
	}

	capacity = (u64) le16_to_cpu(vol_pg0->BlockSize) *
	    (le64_to_cpu(vol_pg0->MaxLBA) + 1);

	if (capacity > tb_2) {
		printk(MPT2SAS_INFO_FMT "WarpDrive : Direct IO is disabled "
		"for the drive with handle(0x%04x) since drive sz > 2TB\n",
		ioc->name, raid_device->handle);
		goto out_error;
	}

	stripe_sz = le32_to_cpu(vol_pg0->StripeSize);
	stripe_exp = 0;
	for (i = 0; i < 32; i++) {
		if (stripe_sz & 1)
			break;
		stripe_exp++;
		stripe_sz >>= 1;
	}
	if (i == 32) {
		printk(MPT2SAS_INFO_FMT "WarpDrive : Direct IO is disabled "
		    "for the drive with handle(0x%04x) invalid stripe sz %uK\n",
		    ioc->name, raid_device->handle,
		    le32_to_cpu(vol_pg0->StripeSize)/2);
		goto out_error;
	}
	raid_device->stripe_exponent = stripe_exp;
	raid_device->direct_io_enabled = 1;

	printk(MPT2SAS_INFO_FMT "WarpDrive : Direct IO is Enabled for the drive"
	    " with handle(0x%04x)\n", ioc->name, raid_device->handle);
	/*
	 * WARPDRIVE: Though the following fields are not used for direct IO,
	 * stored for future purpose:
	 */
	raid_device->max_lba = le64_to_cpu(vol_pg0->MaxLBA);
	raid_device->stripe_sz = le32_to_cpu(vol_pg0->StripeSize);
	raid_device->block_sz = le16_to_cpu(vol_pg0->BlockSize);


	kfree(vol_pg0);
	return;

out_error:
	raid_device->direct_io_enabled = 0;
	for (count = 0; count < num_pds; count++)
		raid_device->pd_handle[count] = 0;
	kfree(vol_pg0);
	return;
}
E
Eric Moore 已提交
1919

1920 1921 1922 1923 1924 1925 1926 1927 1928 1929 1930 1931 1932 1933 1934 1935 1936 1937 1938 1939 1940 1941 1942 1943 1944 1945
/**
 * _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
1946
/**
1947
 * _scsih_slave_configure - device configure routine.
E
Eric Moore 已提交
1948 1949 1950 1951 1952 1953
 * @sdev: scsi device struct
 *
 * Returns 0 if ok. Any other return is assumed to be an error and
 * the device is ignored.
 */
static int
1954
_scsih_slave_configure(struct scsi_device *sdev)
E
Eric Moore 已提交
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
{
	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) {
1982 1983 1984 1985
			dfailprintk(ioc, printk(MPT2SAS_WARN_FMT
			    "failure at %s:%d/%s()!\n", ioc->name, __FILE__,
			    __LINE__, __func__));
			return 1;
E
Eric Moore 已提交
1986 1987 1988 1989
		}

		_scsih_get_volume_capabilities(ioc, raid_device);

1990 1991 1992 1993 1994 1995
		if (_scsih_get_volume_capabilities(ioc, raid_device)) {
			dfailprintk(ioc, printk(MPT2SAS_WARN_FMT
			    "failure at %s:%d/%s()!\n", ioc->name, __FILE__,
			    __LINE__, __func__));
			return 1;
		}
1996 1997 1998 1999 2000
		/*
		 * WARPDRIVE: Initialize the required data for Direct IO
		 */
		_scsih_init_warpdrive_properties(ioc, raid_device);

E
Eric Moore 已提交
2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024
		/* 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;
2025
			if (ioc->manu_pg10.OEMIdentifier &&
2026
			    (le32_to_cpu(ioc->manu_pg10.GenericFlags0) &
2027 2028 2029 2030 2031
			    MFG10_GF0_R10_DISPLAY) &&
			    !(raid_device->num_pds % 2))
				r_level = "RAID10";
			else
				r_level = "RAID1E";
E
Eric Moore 已提交
2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 2043 2044 2045 2046 2047
			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;
		}

2048 2049 2050 2051 2052 2053
		if (!ioc->hide_ir_msg)
			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);
2054
		_scsih_change_queue_depth(sdev, qdepth, SCSI_QDEPTH_DEFAULT);
2055
		/* raid transport support */
2056 2057
		if (!ioc->is_warpdrive)
			_scsih_set_level(sdev, raid_device);
E
Eric Moore 已提交
2058 2059 2060 2061 2062 2063 2064 2065 2066 2067 2068
		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) {
2069 2070 2071 2072 2073 2074 2075
			if (mpt2sas_config_get_volume_handle(ioc,
			    sas_device->handle, &sas_device->volume_handle)) {
				dfailprintk(ioc, printk(MPT2SAS_WARN_FMT
				    "failure at %s:%d/%s()!\n", ioc->name,
				    __FILE__, __LINE__, __func__));
				return 1;
			}
2076 2077
			if (sas_device->volume_handle &&
			    mpt2sas_config_get_volume_wwid(ioc,
E
Eric Moore 已提交
2078
			    sas_device->volume_handle,
2079 2080 2081 2082 2083 2084
			    &sas_device->volume_wwid)) {
				dfailprintk(ioc, printk(MPT2SAS_WARN_FMT
				    "failure at %s:%d/%s()!\n", ioc->name,
				    __FILE__, __LINE__, __func__));
				return 1;
			}
E
Eric Moore 已提交
2085 2086 2087 2088 2089 2090 2091 2092 2093 2094 2095 2096 2097 2098 2099 2100
		}
		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), "
2101
		    "sas_addr(0x%016llx), phy(%d), device_name(0x%016llx)\n",
E
Eric Moore 已提交
2102 2103
		    ds, sas_device->handle,
		    (unsigned long long)sas_device->sas_address,
2104
		    sas_device->phy,
E
Eric Moore 已提交
2105 2106 2107 2108 2109 2110 2111
		    (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)
2112
			_scsih_display_sata_capabilities(ioc, sas_device, sdev);
2113 2114 2115 2116 2117
	} else {
		dfailprintk(ioc, printk(MPT2SAS_WARN_FMT
		    "failure at %s:%d/%s()!\n", ioc->name, __FILE__, __LINE__,
		    __func__));
		return 1;
E
Eric Moore 已提交
2118 2119
	}

2120
	_scsih_change_queue_depth(sdev, qdepth, SCSI_QDEPTH_DEFAULT);
E
Eric Moore 已提交
2121

2122
	if (ssp_target) {
E
Eric Moore 已提交
2123
		sas_read_port_mode_page(sdev);
2124 2125
		_scsih_enable_tlr(ioc, sdev);
	}
E
Eric Moore 已提交
2126 2127 2128 2129
	return 0;
}

/**
2130
 * _scsih_bios_param - fetch head, sector, cylinder info for a disk
E
Eric Moore 已提交
2131 2132 2133 2134 2135 2136 2137 2138 2139 2140 2141
 * @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
2142
_scsih_bios_param(struct scsi_device *sdev, struct block_device *bdev,
E
Eric Moore 已提交
2143 2144 2145 2146 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 2200 2201 2202 2203 2204 2205 2206 2207 2208 2209 2210 2211 2212 2213 2214 2215 2216 2217 2218 2219 2220 2221 2222
    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);
}

/**
2223
 * _scsih_tm_done - tm completion routine
E
Eric Moore 已提交
2224 2225
 * @ioc: per adapter object
 * @smid: system request message index
2226
 * @msix_index: MSIX table index supplied by the OS
E
Eric Moore 已提交
2227 2228 2229 2230 2231
 * @reply: reply message frame(lower 32bit addr)
 * Context: none.
 *
 * The callback handler when using scsih_issue_tm.
 *
2232 2233
 * 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
2234
 */
2235
static u8
2236
_scsih_tm_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 msix_index, u32 reply)
E
Eric Moore 已提交
2237 2238 2239 2240
{
	MPI2DefaultReply_t *mpi_reply;

	if (ioc->tm_cmds.status == MPT2_CMD_NOT_USED)
2241
		return 1;
E
Eric Moore 已提交
2242
	if (ioc->tm_cmds.smid != smid)
2243
		return 1;
2244
	mpt2sas_base_flush_reply_queues(ioc);
E
Eric Moore 已提交
2245 2246 2247 2248 2249 2250 2251 2252
	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);
2253
	return 1;
E
Eric Moore 已提交
2254 2255 2256 2257 2258 2259 2260 2261 2262 2263 2264 2265 2266 2267 2268 2269 2270 2271 2272 2273 2274 2275 2276 2277 2278 2279 2280 2281 2282 2283 2284 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 2310 2311
}

/**
 * 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;
		}
	}
}

2312

E
Eric Moore 已提交
2313 2314 2315 2316
/**
 * mpt2sas_scsih_issue_tm - main routine for sending tm requests
 * @ioc: per adapter struct
 * @device_handle: device handle
2317 2318
 * @channel: the channel assigned by the OS
 * @id: the id assigned by the OS
E
Eric Moore 已提交
2319 2320 2321 2322
 * @lun: lun number
 * @type: MPI2_SCSITASKMGMT_TASKTYPE__XXX (defined in mpi2_init.h)
 * @smid_task: smid assigned to the task
 * @timeout: timeout in seconds
2323 2324
 * @serial_number: the serial_number from scmd
 * @m_type: TM_MUTEX_ON or TM_MUTEX_OFF
2325
 * Context: user
E
Eric Moore 已提交
2326 2327 2328 2329 2330
 *
 * A generic API for sending task management requests to firmware.
 *
 * The callback index is set inside `ioc->tm_cb_idx`.
 *
2331
 * Return SUCCESS or FAILED.
E
Eric Moore 已提交
2332
 */
2333 2334 2335
int
mpt2sas_scsih_issue_tm(struct MPT2SAS_ADAPTER *ioc, u16 handle, uint channel,
    uint id, uint lun, u8 type, u16 smid_task, ulong timeout,
2336
	unsigned long serial_number, enum mutex_type m_type)
E
Eric Moore 已提交
2337 2338 2339 2340 2341 2342
{
	Mpi2SCSITaskManagementRequest_t *mpi_request;
	Mpi2SCSITaskManagementReply_t *mpi_reply;
	u16 smid = 0;
	u32 ioc_state;
	unsigned long timeleft;
2343
	struct scsiio_tracker *scsi_lookup = NULL;
2344
	int rc;
E
Eric Moore 已提交
2345

2346 2347
	if (m_type == TM_MUTEX_ON)
		mutex_lock(&ioc->tm_cmds.mutex);
2348 2349 2350
	if (ioc->tm_cmds.status != MPT2_CMD_NOT_USED) {
		printk(MPT2SAS_INFO_FMT "%s: tm_cmd busy!!!\n",
		    __func__, ioc->name);
2351 2352
		rc = FAILED;
		goto err_out;
2353 2354
	}

2355 2356
	if (ioc->shost_recovery || ioc->remove_host ||
	    ioc->pci_error_recovery) {
E
Eric Moore 已提交
2357 2358
		printk(MPT2SAS_INFO_FMT "%s: host reset in progress!\n",
		    __func__, ioc->name);
2359 2360
		rc = FAILED;
		goto err_out;
E
Eric Moore 已提交
2361 2362 2363 2364
	}

	ioc_state = mpt2sas_base_get_iocstate(ioc, 0);
	if (ioc_state & MPI2_DOORBELL_USED) {
2365
		dhsprintk(ioc, printk(MPT2SAS_INFO_FMT "unexpected doorbell "
E
Eric Moore 已提交
2366
		    "active!\n", ioc->name));
2367
		rc = mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP,
2368
		    FORCE_BIG_HAMMER);
2369
		rc = (!rc) ? SUCCESS : FAILED;
2370
		goto err_out;
E
Eric Moore 已提交
2371 2372 2373 2374 2375
	}

	if ((ioc_state & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_FAULT) {
		mpt2sas_base_fault_info(ioc, ioc_state &
		    MPI2_DOORBELL_DATA_MASK);
2376
		rc = mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP,
2377
		    FORCE_BIG_HAMMER);
2378
		rc = (!rc) ? SUCCESS : FAILED;
2379
		goto err_out;
E
Eric Moore 已提交
2380 2381
	}

2382
	smid = mpt2sas_base_get_smid_hpr(ioc, ioc->tm_cb_idx);
E
Eric Moore 已提交
2383 2384 2385
	if (!smid) {
		printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
		    ioc->name, __func__);
2386 2387
		rc = FAILED;
		goto err_out;
E
Eric Moore 已提交
2388 2389
	}

2390 2391 2392
	if (type == MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK)
		scsi_lookup = &ioc->scsi_lookup[smid_task - 1];

E
Eric Moore 已提交
2393
	dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "sending tm: handle(0x%04x),"
2394 2395
	    " task_type(0x%02x), smid(%d)\n", ioc->name, handle, type,
	    smid_task));
E
Eric Moore 已提交
2396 2397 2398 2399
	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));
2400
	memset(ioc->tm_cmds.reply, 0, sizeof(Mpi2SCSITaskManagementReply_t));
E
Eric Moore 已提交
2401 2402 2403 2404 2405 2406
	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);
2407
	init_completion(&ioc->tm_cmds.done);
2408
	mpt2sas_base_put_smid_hi_priority(ioc, smid);
E
Eric Moore 已提交
2409 2410 2411 2412 2413 2414
	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);
2415
		if (!(ioc->tm_cmds.status & MPT2_CMD_RESET)) {
2416
			rc = mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP,
2417
			    FORCE_BIG_HAMMER);
2418
			rc = (!rc) ? SUCCESS : FAILED;
2419 2420 2421 2422
			ioc->tm_cmds.status = MPT2_CMD_NOT_USED;
			mpt2sas_scsih_clear_tm_flag(ioc, handle);
			goto err_out;
		}
E
Eric Moore 已提交
2423 2424 2425 2426 2427 2428 2429 2430 2431
	}

	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)));
2432
		if (ioc->logging_level & MPT_DEBUG_TM) {
E
Eric Moore 已提交
2433
			_scsih_response_code(ioc, mpi_reply->ResponseCode);
2434 2435 2436 2437
			if (mpi_reply->IOCStatus)
				_debug_dump_mf(mpi_request,
				    sizeof(Mpi2SCSITaskManagementRequest_t)/4);
		}
E
Eric Moore 已提交
2438
	}
2439 2440 2441

	switch (type) {
	case MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK:
2442 2443 2444 2445
		rc = SUCCESS;
		if (scsi_lookup->scmd == NULL)
			break;
		rc = FAILED;
2446 2447 2448 2449 2450 2451 2452 2453 2454
		break;

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

2455
	case MPI2_SCSITASKMGMT_TASKTYPE_ABRT_TASK_SET:
2456 2457 2458 2459 2460 2461
	case MPI2_SCSITASKMGMT_TASKTYPE_LOGICAL_UNIT_RESET:
		if (_scsih_scsi_lookup_find_by_lun(ioc, id, lun, channel))
			rc = FAILED;
		else
			rc = SUCCESS;
		break;
2462 2463 2464 2465 2466 2467
	case MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK:
		rc = SUCCESS;
		break;
	default:
		rc = FAILED;
		break;
2468 2469 2470 2471
	}

	mpt2sas_scsih_clear_tm_flag(ioc, handle);
	ioc->tm_cmds.status = MPT2_CMD_NOT_USED;
2472 2473
	if (m_type == TM_MUTEX_ON)
		mutex_unlock(&ioc->tm_cmds.mutex);
2474 2475 2476 2477

	return rc;

 err_out:
2478 2479
	if (m_type == TM_MUTEX_ON)
		mutex_unlock(&ioc->tm_cmds.mutex);
2480
	return rc;
E
Eric Moore 已提交
2481 2482
}

2483 2484 2485 2486 2487 2488 2489 2490 2491 2492 2493 2494 2495 2496
/**
 * _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;
2497
	char *device_str = NULL;
2498 2499 2500

	if (!priv_target)
		return;
2501 2502 2503 2504
	if (ioc->hide_ir_msg)
		device_str = "WarpDrive";
	else
		device_str = "volume";
2505 2506 2507

	scsi_print_command(scmd);
	if (priv_target->flags & MPT_TARGET_FLAGS_VOLUME) {
2508 2509 2510
		starget_printk(KERN_INFO, starget, "%s handle(0x%04x), "
		    "%s wwid(0x%016llx)\n", device_str, priv_target->handle,
		    device_str, (unsigned long long)priv_target->sas_address);
2511 2512 2513 2514 2515 2516 2517 2518 2519 2520 2521 2522 2523 2524 2525 2526 2527 2528 2529 2530 2531 2532 2533 2534 2535 2536 2537
	} 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
2538
/**
2539
 * _scsih_abort - eh threads main abort routine
2540
 * @scmd: pointer to scsi command object
E
Eric Moore 已提交
2541 2542 2543 2544
 *
 * Returns SUCCESS if command aborted else FAILED
 */
static int
2545
_scsih_abort(struct scsi_cmnd *scmd)
E
Eric Moore 已提交
2546 2547 2548 2549 2550 2551 2552
{
	struct MPT2SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
	struct MPT2SAS_DEVICE *sas_device_priv_data;
	u16 smid;
	u16 handle;
	int r;

2553 2554 2555
	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
2556 2557 2558

	sas_device_priv_data = scmd->device->hostdata;
	if (!sas_device_priv_data || !sas_device_priv_data->sas_target) {
2559 2560
		sdev_printk(KERN_INFO, scmd->device, "device been deleted! "
		    "scmd(%p)\n", scmd);
E
Eric Moore 已提交
2561 2562 2563 2564 2565 2566 2567 2568 2569 2570 2571 2572 2573 2574 2575 2576 2577 2578 2579 2580 2581 2582 2583
		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;
	}

2584 2585
	mpt2sas_halt_firmware(ioc);

E
Eric Moore 已提交
2586
	handle = sas_device_priv_data->sas_target->handle;
2587 2588
	r = mpt2sas_scsih_issue_tm(ioc, handle, scmd->device->channel,
	    scmd->device->id, scmd->device->lun,
2589 2590
	    MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK, smid, 30,
	    scmd->serial_number, TM_MUTEX_ON);
E
Eric Moore 已提交
2591 2592

 out:
2593 2594
	sdev_printk(KERN_INFO, scmd->device, "task abort: %s scmd(%p)\n",
	    ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
E
Eric Moore 已提交
2595 2596 2597 2598
	return r;
}

/**
2599
 * _scsih_dev_reset - eh threads main device reset routine
2600
 * @scmd: pointer to scsi command object
E
Eric Moore 已提交
2601 2602 2603 2604
 *
 * Returns SUCCESS if command aborted else FAILED
 */
static int
2605
_scsih_dev_reset(struct scsi_cmnd *scmd)
E
Eric Moore 已提交
2606 2607 2608 2609 2610 2611 2612 2613
{
	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;

2614 2615
	struct scsi_target *starget = scmd->device->sdev_target;

2616
	starget_printk(KERN_INFO, starget, "attempting device reset! "
2617 2618
	    "scmd(%p)\n", scmd);
	_scsih_tm_display_info(ioc, scmd);
E
Eric Moore 已提交
2619 2620 2621

	sas_device_priv_data = scmd->device->hostdata;
	if (!sas_device_priv_data || !sas_device_priv_data->sas_target) {
2622
		starget_printk(KERN_INFO, starget, "device been deleted! "
2623
		    "scmd(%p)\n", scmd);
E
Eric Moore 已提交
2624 2625 2626 2627 2628 2629 2630 2631 2632 2633 2634 2635 2636 2637 2638 2639 2640 2641 2642 2643 2644 2645 2646 2647 2648
		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;
	}

2649 2650
	r = mpt2sas_scsih_issue_tm(ioc, handle, scmd->device->channel,
	    scmd->device->id, scmd->device->lun,
2651 2652
	    MPI2_SCSITASKMGMT_TASKTYPE_LOGICAL_UNIT_RESET, 0, 30, 0,
	    TM_MUTEX_ON);
E
Eric Moore 已提交
2653 2654

 out:
2655 2656
	sdev_printk(KERN_INFO, scmd->device, "device reset: %s scmd(%p)\n",
	    ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
E
Eric Moore 已提交
2657 2658 2659 2660
	return r;
}

/**
2661
 * _scsih_target_reset - eh threads main target reset routine
2662
 * @scmd: pointer to scsi command object
E
Eric Moore 已提交
2663 2664 2665 2666
 *
 * Returns SUCCESS if command aborted else FAILED
 */
static int
2667
_scsih_target_reset(struct scsi_cmnd *scmd)
E
Eric Moore 已提交
2668 2669 2670 2671 2672 2673 2674
{
	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;
2675
	struct scsi_target *starget = scmd->device->sdev_target;
E
Eric Moore 已提交
2676

2677 2678 2679
	starget_printk(KERN_INFO, starget, "attempting target reset! "
	    "scmd(%p)\n", scmd);
	_scsih_tm_display_info(ioc, scmd);
E
Eric Moore 已提交
2680 2681 2682

	sas_device_priv_data = scmd->device->hostdata;
	if (!sas_device_priv_data || !sas_device_priv_data->sas_target) {
2683 2684
		starget_printk(KERN_INFO, starget, "target been deleted! "
		    "scmd(%p)\n", scmd);
E
Eric Moore 已提交
2685 2686 2687 2688 2689 2690 2691 2692 2693 2694 2695 2696 2697 2698 2699 2700 2701 2702 2703 2704 2705 2706 2707 2708 2709
		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;
	}

2710 2711
	r = mpt2sas_scsih_issue_tm(ioc, handle, scmd->device->channel,
	    scmd->device->id, 0, MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET, 0,
2712
	    30, 0, TM_MUTEX_ON);
E
Eric Moore 已提交
2713 2714

 out:
2715 2716
	starget_printk(KERN_INFO, starget, "target reset: %s scmd(%p)\n",
	    ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
E
Eric Moore 已提交
2717 2718 2719 2720
	return r;
}

/**
2721
 * _scsih_host_reset - eh threads main host reset routine
2722
 * @scmd: pointer to scsi command object
E
Eric Moore 已提交
2723 2724 2725 2726
 *
 * Returns SUCCESS if command aborted else FAILED
 */
static int
2727
_scsih_host_reset(struct scsi_cmnd *scmd)
E
Eric Moore 已提交
2728 2729 2730 2731 2732 2733 2734 2735 2736 2737 2738 2739 2740 2741 2742 2743 2744 2745 2746 2747 2748 2749 2750 2751 2752 2753 2754 2755 2756 2757 2758 2759 2760 2761 2762 2763 2764 2765
{
	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);
2766 2767 2768
	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
2769 2770 2771 2772 2773 2774 2775 2776 2777 2778 2779 2780 2781 2782 2783 2784 2785 2786 2787 2788 2789 2790 2791 2792 2793 2794
	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);
}

2795

E
Eric Moore 已提交
2796
/**
2797
 * _scsih_error_recovery_delete_devices - remove devices not responding
E
Eric Moore 已提交
2798 2799 2800 2801 2802
 * @ioc: per adapter object
 *
 * Return nothing.
 */
static void
2803
_scsih_error_recovery_delete_devices(struct MPT2SAS_ADAPTER *ioc)
E
Eric Moore 已提交
2804
{
2805
	struct fw_event_work *fw_event;
E
Eric Moore 已提交
2806

2807
	if (ioc->is_driver_loading)
2808
		return;
2809 2810 2811 2812 2813

	fw_event = kzalloc(sizeof(struct fw_event_work), GFP_ATOMIC);
	if (!fw_event)
		return;

2814 2815 2816 2817 2818 2819 2820 2821 2822 2823 2824 2825 2826 2827 2828 2829
	fw_event->event = MPT2SAS_REMOVE_UNRESPONDING_DEVICES;
	fw_event->ioc = ioc;
	_scsih_fw_event_add(ioc, fw_event);
}

/**
 * mpt2sas_port_enable_complete - port enable completed (fake event)
 * @ioc: per adapter object
 *
 * Return nothing.
 */
void
mpt2sas_port_enable_complete(struct MPT2SAS_ADAPTER *ioc)
{
	struct fw_event_work *fw_event;

2830 2831 2832
	fw_event = kzalloc(sizeof(struct fw_event_work), GFP_ATOMIC);
	if (!fw_event)
		return;
2833
	fw_event->event = MPT2SAS_PORT_ENABLE_COMPLETE;
2834 2835
	fw_event->ioc = ioc;
	_scsih_fw_event_add(ioc, fw_event);
E
Eric Moore 已提交
2836 2837 2838
}

/**
2839
 * _scsih_fw_event_cleanup_queue - cleanup event queue
E
Eric Moore 已提交
2840 2841
 * @ioc: per adapter object
 *
2842 2843
 * Walk the firmware event queue, either killing timers, or waiting
 * for outstanding events to complete
E
Eric Moore 已提交
2844 2845 2846 2847
 *
 * Return nothing.
 */
static void
2848
_scsih_fw_event_cleanup_queue(struct MPT2SAS_ADAPTER *ioc)
E
Eric Moore 已提交
2849
{
2850
	struct fw_event_work *fw_event, *next;
E
Eric Moore 已提交
2851

2852 2853 2854
	if (list_empty(&ioc->fw_event_list) ||
	     !ioc->firmware_event_thread || in_interrupt())
		return;
E
Eric Moore 已提交
2855

2856 2857 2858 2859 2860 2861 2862
	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
2863 2864
}

2865 2866 2867 2868 2869 2870 2871 2872 2873 2874 2875 2876 2877 2878 2879 2880 2881 2882 2883 2884 2885 2886 2887 2888 2889
/**
 * _scsih_ublock_io_all_device - unblock every device
 * @ioc: per adapter object
 *
 * change the device state from block to running
 */
static void
_scsih_ublock_io_all_device(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)
			continue;
		if (!sas_device_priv_data->block)
			continue;
		sas_device_priv_data->block = 0;
		dewtprintk(ioc, sdev_printk(KERN_INFO, sdev, "device_running, "
		    "handle(0x%04x)\n",
		    sas_device_priv_data->sas_target->handle));
		scsi_internal_device_unblock(sdev);
	}
}
E
Eric Moore 已提交
2890 2891 2892 2893 2894 2895 2896 2897 2898 2899 2900 2901 2902 2903 2904 2905 2906 2907 2908 2909 2910 2911 2912 2913
/**
 * _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;
2914
			scsi_internal_device_unblock(sdev);
E
Eric Moore 已提交
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 2945 2946
/**
 * _scsih_block_io_all_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_all_device(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)
			continue;
		if (sas_device_priv_data->block)
			continue;
		sas_device_priv_data->block = 1;
		dewtprintk(ioc, sdev_printk(KERN_INFO, sdev, "device_blocked, "
		    "handle(0x%04x)\n",
		    sas_device_priv_data->sas_target->handle));
		scsi_internal_device_block(sdev);
	}
}


E
Eric Moore 已提交
2947 2948 2949 2950 2951 2952 2953 2954 2955 2956 2957 2958 2959 2960 2961 2962 2963 2964 2965 2966 2967 2968 2969 2970
/**
 * _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;
2971
			scsi_internal_device_block(sdev);
E
Eric Moore 已提交
2972 2973 2974 2975 2976 2977 2978 2979 2980 2981 2982 2983 2984 2985 2986 2987 2988 2989 2990 2991 2992 2993 2994 2995 2996 2997 2998 2999 3000 3001 3002 3003 3004 3005 3006 3007 3008 3009 3010 3011 3012 3013 3014 3015
		}
	}
}

/**
 * _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 ==
3016
		    SAS_EDGE_EXPANDER_DEVICE ||
E
Eric Moore 已提交
3017
		    mpt2sas_port->remote_identify.device_type ==
3018
		    SAS_FANOUT_EXPANDER_DEVICE) {
E
Eric Moore 已提交
3019 3020 3021 3022 3023 3024 3025 3026 3027 3028 3029 3030 3031 3032 3033 3034 3035 3036 3037 3038 3039 3040 3041 3042 3043 3044 3045 3046 3047 3048 3049 3050 3051 3052 3053 3054 3055 3056 3057 3058 3059

			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);
	}
}

3060 3061 3062 3063 3064 3065
/**
 * _scsih_tm_tr_send - send task management request
 * @ioc: per adapter object
 * @handle: device handle
 * Context: interrupt time.
 *
L
Lucas De Marchi 已提交
3066
 * This code is to initiate the device removal handshake protocol
3067 3068
 * with controller firmware.  This function will issue target reset
 * using high priority request queue.  It will send a sas iounit
L
Lucas De Marchi 已提交
3069
 * control request (MPI2_SAS_OP_REMOVE_DEVICE) from this completion.
3070 3071 3072 3073 3074 3075 3076 3077 3078 3079 3080
 *
 * 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;
3081 3082
	struct MPT2SAS_TARGET *sas_target_priv_data = NULL;
	u64 sas_address = 0;
3083 3084
	unsigned long flags;
	struct _tr_list *delayed_tr;
3085
	u32 ioc_state;
3086

3087 3088 3089 3090 3091 3092 3093 3094 3095 3096 3097 3098 3099 3100 3101
	if (ioc->remove_host) {
		dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: host has been "
		    "removed: handle(0x%04x)\n", __func__, ioc->name, handle));
		return;
	} else if (ioc->pci_error_recovery) {
		dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: host in pci "
		    "error recovery: handle(0x%04x)\n", __func__, ioc->name,
		    handle));
		return;
	}
	ioc_state = mpt2sas_base_get_iocstate(ioc, 1);
	if (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
		dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: host is not "
		   "operational: handle(0x%04x)\n", __func__, ioc->name,
		   handle));
3102 3103 3104
		return;
	}

3105 3106 3107 3108
	/* if PD, then return */
	if (test_bit(handle, ioc->pd_handles))
		return;

3109 3110
	spin_lock_irqsave(&ioc->sas_device_lock, flags);
	sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
3111 3112 3113 3114
	if (sas_device && sas_device->starget &&
	     sas_device->starget->hostdata) {
		sas_target_priv_data = sas_device->starget->hostdata;
		sas_target_priv_data->deleted = 1;
3115
		sas_address = sas_device->sas_address;
3116 3117
	}
	spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
3118

3119 3120 3121 3122 3123
	if (sas_target_priv_data) {
		dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "setting delete flag: "
		"handle(0x%04x), sas_addr(0x%016llx)\n", ioc->name, handle,
			(unsigned long long)sas_address));
		_scsih_ublock_io_device(ioc, handle);
3124
		sas_target_priv_data->handle = MPT2SAS_INVALID_DEVICE_HANDLE;
3125 3126
	}

3127 3128 3129 3130 3131 3132 3133
	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;
3134
		list_add_tail(&delayed_tr->list, &ioc->delayed_tr_list);
3135
		dewtprintk(ioc, printk(MPT2SAS_INFO_FMT
3136 3137 3138
		    "DELAYED:tr:handle(0x%04x), (open)\n",
		    ioc->name, handle));
		return;
3139 3140
	}

3141 3142 3143
	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));
3144 3145 3146 3147 3148 3149 3150 3151 3152 3153 3154 3155 3156 3157 3158 3159 3160 3161
	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.
 *
L
Lucas De Marchi 已提交
3162
 * This is the sas iounit control completion routine.
3163
 * This code is part of the code to initiate the device removal
L
Lucas De Marchi 已提交
3164
 * handshake protocol with controller firmware.
3165 3166 3167 3168 3169 3170 3171 3172
 *
 * 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)
{
3173
#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
3174 3175
	Mpi2SasIoUnitControlReply_t *mpi_reply =
	    mpt2sas_base_get_reply_virt_addr(ioc, reply);
3176
#endif
3177 3178 3179 3180 3181 3182
	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)));
3183 3184 3185
	return 1;
}

3186 3187 3188 3189 3190 3191 3192 3193 3194 3195 3196 3197 3198 3199 3200 3201 3202
/**
 * _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;

3203 3204
	if (ioc->shost_recovery || ioc->remove_host ||
	    ioc->pci_error_recovery) {
3205 3206 3207 3208 3209 3210 3211 3212 3213 3214 3215 3216 3217 3218 3219 3220 3221 3222 3223 3224 3225 3226 3227 3228 3229 3230 3231 3232 3233 3234 3235 3236 3237 3238 3239 3240 3241 3242 3243 3244 3245 3246 3247 3248 3249 3250 3251 3252 3253 3254
		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);

3255 3256
	if (ioc->shost_recovery || ioc->remove_host ||
	    ioc->pci_error_recovery) {
3257 3258 3259 3260 3261 3262 3263 3264 3265 3266 3267 3268 3269 3270 3271 3272 3273 3274 3275 3276 3277 3278 3279 3280
		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);
}

3281 3282 3283 3284 3285 3286 3287 3288 3289 3290
/**
 * _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
L
Lucas De Marchi 已提交
3291 3292
 * handshake protocol with controller firmware.
 * It will send a sas iounit control request (MPI2_SAS_OP_REMOVE_DEVICE)
3293 3294 3295 3296 3297 3298 3299 3300 3301
 *
 * 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;
3302
	Mpi2SCSITaskManagementRequest_t *mpi_request_tm;
3303 3304 3305 3306
	Mpi2SCSITaskManagementReply_t *mpi_reply =
	    mpt2sas_base_get_reply_virt_addr(ioc, reply);
	Mpi2SasIoUnitControlRequest_t *mpi_request;
	u16 smid_sas_ctrl;
3307
	u32 ioc_state;
3308

3309 3310 3311 3312 3313 3314 3315 3316 3317 3318 3319 3320 3321
	if (ioc->remove_host) {
		dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: host has been "
		   "removed\n", __func__, ioc->name));
		return 1;
	} else if (ioc->pci_error_recovery) {
		dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: host in pci "
		    "error recovery\n", __func__, ioc->name));
		return 1;
	}
	ioc_state = mpt2sas_base_get_iocstate(ioc, 1);
	if (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
		dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: host is not "
		    "operational\n", __func__, ioc->name));
3322
		return 1;
3323 3324
	}

3325 3326 3327 3328 3329 3330 3331
	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;
3332 3333
	}

3334 3335 3336 3337 3338 3339 3340
	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)));

3341 3342 3343 3344
	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__);
3345
		return 1;
3346 3347
	}

3348 3349 3350
	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));
3351 3352 3353 3354
	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;
3355
	mpi_request->DevHandle = mpi_request_tm->DevHandle;
3356
	mpt2sas_base_put_smid_default(ioc, smid_sas_ctrl);
3357

3358 3359 3360 3361 3362 3363 3364 3365 3366 3367 3368 3369 3370 3371 3372 3373 3374 3375 3376 3377 3378 3379 3380 3381 3382 3383 3384 3385 3386
	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;
	}

3387 3388 3389 3390 3391 3392 3393
	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);
3394
		return 0;
3395
	}
3396

3397
	return 1;
3398 3399
}

E
Eric Moore 已提交
3400 3401 3402 3403 3404 3405 3406
/**
 * _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.
 *
L
Lucas De Marchi 已提交
3407
 * This handles the case where driver receives multiple expander
E
Eric Moore 已提交
3408 3409 3410 3411 3412 3413 3414 3415 3416 3417 3418 3419 3420 3421
 * 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;
3422 3423 3424 3425 3426 3427 3428 3429 3430 3431 3432 3433
	int i, reason_code;
	u16 handle;

	for (i = 0 ; i < event_data->NumEntries; i++) {
		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
3434 3435 3436 3437 3438 3439 3440 3441 3442 3443 3444 3445 3446 3447 3448 3449 3450 3451 3452 3453 3454 3455 3456 3457 3458 3459 3460 3461 3462 3463 3464 3465 3466

	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) {
3467
				dewtprintk(ioc, printk(MPT2SAS_INFO_FMT
E
Eric Moore 已提交
3468 3469 3470 3471 3472 3473 3474 3475
				    "setting ignoring flag\n", ioc->name));
				fw_event->ignore = 1;
			}
		}
	}
	spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
}

3476 3477 3478 3479 3480 3481 3482 3483 3484 3485 3486 3487 3488 3489 3490 3491 3492 3493 3494 3495 3496 3497 3498 3499 3500 3501 3502 3503 3504 3505 3506 3507 3508 3509 3510 3511 3512 3513 3514 3515 3516 3517 3518 3519 3520 3521 3522 3523 3524 3525 3526 3527 3528 3529 3530 3531 3532 3533 3534 3535 3536 3537 3538 3539 3540 3541 3542 3543 3544 3545 3546 3547 3548 3549 3550 3551 3552
/**
 * _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;

3553 3554 3555
	if (ioc->is_warpdrive)
		return;

3556 3557 3558 3559 3560 3561 3562 3563 3564 3565 3566 3567 3568 3569 3570 3571 3572 3573 3574 3575 3576 3577 3578 3579 3580 3581 3582 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
	/* 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
3638 3639 3640 3641 3642 3643 3644 3645 3646 3647 3648 3649 3650 3651 3652 3653
/**
 * _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;

3654
	for (smid = 1; smid <= ioc->scsiio_depth; smid++) {
3655
		scmd = _scsih_scsi_lookup_get_clear(ioc, smid);
E
Eric Moore 已提交
3656 3657 3658 3659 3660
		if (!scmd)
			continue;
		count++;
		mpt2sas_base_free_smid(ioc, smid);
		scsi_dma_unmap(scmd);
3661 3662 3663 3664
		if (ioc->pci_error_recovery)
			scmd->result = DID_NO_CONNECT << 16;
		else
			scmd->result = DID_RESET << 16;
E
Eric Moore 已提交
3665 3666 3667 3668 3669 3670
		scmd->scsi_done(scmd);
	}
	dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "completing %d cmds\n",
	    ioc->name, count));
}

E
Eric Moore 已提交
3671 3672 3673 3674 3675 3676 3677 3678 3679 3680 3681 3682 3683 3684 3685 3686
/**
 * _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);

3687
	if (prot_type == SCSI_PROT_DIF_TYPE0 || prot_op == SCSI_PROT_NORMAL)
E
Eric Moore 已提交
3688 3689 3690 3691 3692 3693 3694 3695 3696 3697 3698
		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:
3699
	case SCSI_PROT_DIF_TYPE2:
E
Eric Moore 已提交
3700 3701 3702 3703 3704

		/*
		* enable ref/guard checking
		* auto increment ref tag
		*/
3705
		eedp_flags |= MPI2_SCSIIO_EEDPFLAGS_INC_PRI_REFTAG |
E
Eric Moore 已提交
3706 3707 3708 3709
		    MPI2_SCSIIO_EEDPFLAGS_CHECK_REFTAG |
		    MPI2_SCSIIO_EEDPFLAGS_CHECK_GUARD;
		mpi_request->CDB.EEDP32.PrimaryReferenceTag =
		    cpu_to_be32(scsi_get_lba(scmd));
3710 3711
		break;

E
Eric Moore 已提交
3712 3713 3714 3715 3716
	case SCSI_PROT_DIF_TYPE3:

		/*
		* enable guard checking
		*/
3717
		eedp_flags |= MPI2_SCSIIO_EEDPFLAGS_CHECK_GUARD;
E
Eric Moore 已提交
3718 3719
		break;
	}
3720 3721
	mpi_request->EEDPBlockSize = cpu_to_le32(scmd->device->sector_size);
	mpi_request->EEDPFlags = cpu_to_le16(eedp_flags);
E
Eric Moore 已提交
3722 3723 3724 3725 3726 3727 3728 3729 3730 3731 3732 3733 3734 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
}

/**
 * _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;
}

3766 3767 3768 3769 3770 3771 3772 3773 3774 3775 3776 3777 3778 3779 3780 3781 3782 3783 3784 3785 3786 3787 3788 3789 3790 3791 3792 3793 3794 3795 3796 3797 3798 3799 3800 3801 3802 3803 3804 3805 3806 3807 3808 3809 3810 3811 3812 3813 3814 3815 3816 3817 3818 3819 3820 3821 3822 3823 3824 3825 3826 3827 3828 3829 3830 3831 3832 3833 3834 3835 3836 3837 3838 3839 3840 3841 3842 3843 3844 3845 3846 3847 3848 3849 3850 3851 3852 3853 3854 3855 3856 3857 3858 3859 3860 3861 3862 3863 3864
/**
 * _scsih_scsi_direct_io_get - returns direct io flag
 * @ioc: per adapter object
 * @smid: system request message index
 *
 * Returns the smid stored scmd pointer.
 */
static inline u8
_scsih_scsi_direct_io_get(struct MPT2SAS_ADAPTER *ioc, u16 smid)
{
	return ioc->scsi_lookup[smid - 1].direct_io;
}

/**
 * _scsih_scsi_direct_io_set - sets direct io flag
 * @ioc: per adapter object
 * @smid: system request message index
 * @direct_io: Zero or non-zero value to set in the direct_io flag
 *
 * Returns Nothing.
 */
static inline void
_scsih_scsi_direct_io_set(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 direct_io)
{
	ioc->scsi_lookup[smid - 1].direct_io = direct_io;
}


/**
 * _scsih_setup_direct_io - setup MPI request for WARPDRIVE Direct I/O
 * @ioc: per adapter object
 * @scmd: pointer to scsi command object
 * @raid_device: pointer to raid device data structure
 * @mpi_request: pointer to the SCSI_IO reqest message frame
 * @smid: system request message index
 *
 * Returns nothing
 */
static void
_scsih_setup_direct_io(struct MPT2SAS_ADAPTER *ioc, struct scsi_cmnd *scmd,
	struct _raid_device *raid_device, Mpi2SCSIIORequest_t *mpi_request,
	u16 smid)
{
	u32 v_lba, p_lba, stripe_off, stripe_unit, column, io_size;
	u32 stripe_sz, stripe_exp;
	u8 num_pds, *cdb_ptr, *tmp_ptr, *lba_ptr1, *lba_ptr2;
	u8 cdb0 = scmd->cmnd[0];

	/*
	 * Try Direct I/O to RAID memeber disks
	 */
	if (cdb0 == READ_16 || cdb0 == READ_10 ||
	    cdb0 == WRITE_16 || cdb0 == WRITE_10) {
		cdb_ptr = mpi_request->CDB.CDB32;

		if ((cdb0 < READ_16) || !(cdb_ptr[2] | cdb_ptr[3] | cdb_ptr[4]
			| cdb_ptr[5])) {
			io_size = scsi_bufflen(scmd) >> 9;
			/* get virtual lba */
			lba_ptr1 = lba_ptr2 = (cdb0 < READ_16) ? &cdb_ptr[2] :
			    &cdb_ptr[6];
			tmp_ptr = (u8 *)&v_lba + 3;
			*tmp_ptr-- = *lba_ptr1++;
			*tmp_ptr-- = *lba_ptr1++;
			*tmp_ptr-- = *lba_ptr1++;
			*tmp_ptr = *lba_ptr1;

			if (((u64)v_lba + (u64)io_size - 1) <=
			    (u32)raid_device->max_lba) {
				stripe_sz = raid_device->stripe_sz;
				stripe_exp = raid_device->stripe_exponent;
				stripe_off = v_lba & (stripe_sz - 1);

				/* Check whether IO falls within a stripe */
				if ((stripe_off + io_size) <= stripe_sz) {
					num_pds = raid_device->num_pds;
					p_lba = v_lba >> stripe_exp;
					stripe_unit = p_lba / num_pds;
					column = p_lba % num_pds;
					p_lba = (stripe_unit << stripe_exp) +
					    stripe_off;
					mpi_request->DevHandle =
						cpu_to_le16(raid_device->
						    pd_handle[column]);
					tmp_ptr = (u8 *)&p_lba + 3;
					*lba_ptr2++ = *tmp_ptr--;
					*lba_ptr2++ = *tmp_ptr--;
					*lba_ptr2++ = *tmp_ptr--;
					*lba_ptr2 = *tmp_ptr;
					/*
					* WD: To indicate this I/O is directI/O
					*/
					_scsih_scsi_direct_io_set(ioc, smid, 1);
				}
			}
		}
	}
}

E
Eric Moore 已提交
3865
/**
3866
 * _scsih_qcmd - main scsi request entry point
E
Eric Moore 已提交
3867 3868 3869 3870 3871 3872 3873 3874 3875 3876
 * @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
3877
_scsih_qcmd_lck(struct scsi_cmnd *scmd, void (*done)(struct scsi_cmnd *))
E
Eric Moore 已提交
3878 3879 3880 3881
{
	struct MPT2SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
	struct MPT2SAS_DEVICE *sas_device_priv_data;
	struct MPT2SAS_TARGET *sas_target_priv_data;
3882
	struct _raid_device *raid_device;
E
Eric Moore 已提交
3883 3884 3885 3886 3887 3888
	Mpi2SCSIIORequest_t *mpi_request;
	u32 mpi_control;
	u16 smid;

	scmd->scsi_done = done;
	sas_device_priv_data = scmd->device->hostdata;
3889
	if (!sas_device_priv_data || !sas_device_priv_data->sas_target) {
E
Eric Moore 已提交
3890 3891 3892 3893 3894
		scmd->result = DID_NO_CONNECT << 16;
		scmd->scsi_done(scmd);
		return 0;
	}

3895
	if (ioc->pci_error_recovery || ioc->remove_host) {
3896 3897 3898 3899 3900
		scmd->result = DID_NO_CONNECT << 16;
		scmd->scsi_done(scmd);
		return 0;
	}

E
Eric Moore 已提交
3901
	sas_target_priv_data = sas_device_priv_data->sas_target;
3902 3903
	/* invalid device handle */
	if (sas_target_priv_data->handle == MPT2SAS_INVALID_DEVICE_HANDLE) {
E
Eric Moore 已提交
3904 3905 3906 3907 3908
		scmd->result = DID_NO_CONNECT << 16;
		scmd->scsi_done(scmd);
		return 0;
	}

3909 3910
	/* host recovery or link resets sent via IOCTLs */
	if (ioc->shost_recovery || ioc->ioc_link_reset_in_progress)
E
Eric Moore 已提交
3911
		return SCSI_MLQUEUE_HOST_BUSY;
3912
	/* device busy with task management */
3913 3914 3915 3916 3917 3918 3919 3920
	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
3921 3922 3923 3924 3925 3926 3927 3928 3929 3930 3931 3932 3933 3934 3935 3936 3937 3938 3939 3940 3941 3942 3943

	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;
3944 3945 3946 3947
	/* Make sure Device is not raid volume.
	 * We do not expose raid functionality to upper layer for warpdrive.
	 */
	if (!ioc->is_warpdrive && !_scsih_is_raid(&scmd->device->sdev_gendev) &&
3948
	    sas_is_tlr_enabled(scmd->device) && scmd->cmd_len != 32)
E
Eric Moore 已提交
3949 3950
		mpi_control |= MPI2_SCSIIO_CONTROL_TLR_ON;

3951
	smid = mpt2sas_base_get_smid_scsiio(ioc, ioc->scsi_io_cb_idx, scmd);
E
Eric Moore 已提交
3952 3953 3954 3955 3956 3957 3958
	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
3959
	_scsih_setup_eedp(scmd, mpi_request);
3960 3961
	if (scmd->cmd_len == 32)
		mpi_control |= 4 << MPI2_SCSIIO_CONTROL_ADDCDBLEN_SHIFT;
E
Eric Moore 已提交
3962 3963 3964 3965 3966 3967 3968 3969 3970 3971 3972 3973 3974 3975
	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 =
3976
	    mpt2sas_base_get_sense_buffer_dma(ioc, smid);
E
Eric Moore 已提交
3977 3978 3979
	mpi_request->SGLOffset0 = offsetof(Mpi2SCSIIORequest_t, SGL) / 4;
	mpi_request->SGLFlags = cpu_to_le16(MPI2_SCSIIO_SGLFLAGS_TYPE_MPI +
	    MPI2_SCSIIO_SGLFLAGS_SYSTEM_ADDR);
3980 3981
	mpi_request->VF_ID = 0; /* TODO */
	mpi_request->VP_ID = 0;
E
Eric Moore 已提交
3982 3983 3984 3985 3986 3987 3988 3989 3990 3991 3992 3993 3994
	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;
		}
	}

3995 3996 3997 3998 3999
	raid_device = sas_target_priv_data->raid_device;
	if (raid_device && raid_device->direct_io_enabled)
		_scsih_setup_direct_io(ioc, scmd, raid_device, mpi_request,
		    smid);

4000 4001
	if (likely(mpi_request->Function == MPI2_FUNCTION_SCSI_IO_REQUEST))
		mpt2sas_base_put_smid_scsi_io(ioc, smid,
4002
		    le16_to_cpu(mpi_request->DevHandle));
4003 4004
	else
		mpt2sas_base_put_smid_default(ioc, smid);
E
Eric Moore 已提交
4005 4006 4007 4008 4009 4010
	return 0;

 out:
	return SCSI_MLQUEUE_HOST_BUSY;
}

J
Jeff Garzik 已提交
4011 4012
static DEF_SCSI_QCMD(_scsih_qcmd)

E
Eric Moore 已提交
4013 4014 4015 4016 4017 4018 4019 4020 4021 4022 4023 4024 4025 4026 4027 4028 4029 4030 4031 4032 4033 4034 4035 4036 4037
/**
 * _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
/**
L
Lucas De Marchi 已提交
4038
 * _scsih_scsi_ioc_info - translated non-successful SCSI_IO request
E
Eric Moore 已提交
4039 4040 4041 4042 4043 4044 4045 4046 4047 4048 4049 4050 4051 4052 4053 4054 4055 4056 4057 4058 4059 4060 4061
 * @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;
4062
	u32 log_info = le32_to_cpu(mpi_reply->IOCLogInfo);
4063 4064
	struct _sas_device *sas_device = NULL;
	unsigned long flags;
4065 4066
	struct scsi_target *starget = scmd->device->sdev_target;
	struct MPT2SAS_TARGET *priv_target = starget->hostdata;
4067
	char *device_str = NULL;
4068 4069 4070

	if (!priv_target)
		return;
4071

4072 4073 4074 4075 4076
	if (ioc->hide_ir_msg)
		device_str = "WarpDrive";
	else
		device_str = "volume";

4077 4078
	if (log_info == 0x31170000)
		return;
E
Eric Moore 已提交
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

	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
4123 4124 4125 4126 4127 4128 4129 4130 4131
	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
4132 4133 4134 4135 4136 4137 4138 4139 4140 4141 4142 4143 4144 4145 4146 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
	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);
4191

4192
	if (priv_target->flags & MPT_TARGET_FLAGS_VOLUME) {
4193 4194
		printk(MPT2SAS_WARN_FMT "\t%s wwid(0x%016llx)\n", ioc->name,
		    device_str, (unsigned long long)priv_target->sas_address);
4195 4196 4197 4198 4199 4200 4201 4202 4203 4204 4205 4206 4207 4208
	} 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);
4209 4210
	}

4211 4212 4213
	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
4214 4215 4216 4217 4218 4219 4220 4221 4222 4223 4224 4225 4226 4227
	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]: "
4228 4229
		    "[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
4230 4231 4232 4233 4234
	}

	if (scsi_state & MPI2_SCSI_STATE_RESPONSE_INFO_VALID) {
		response_info = le32_to_cpu(mpi_reply->ResponseInfo);
		response_bytes = (u8 *)&response_info;
4235
		_scsih_response_code(ioc, response_bytes[0]);
E
Eric Moore 已提交
4236 4237 4238 4239 4240
	}
}
#endif

/**
4241
 * _scsih_turn_on_fault_led - illuminate Fault LED
E
Eric Moore 已提交
4242 4243
 * @ioc: per adapter object
 * @handle: device handle
4244
 * Context: process
E
Eric Moore 已提交
4245 4246 4247 4248
 *
 * Return nothing.
 */
static void
4249
_scsih_turn_on_fault_led(struct MPT2SAS_ADAPTER *ioc, u16 handle)
E
Eric Moore 已提交
4250 4251 4252
{
	Mpi2SepReply_t mpi_reply;
	Mpi2SepRequest_t mpi_request;
4253 4254 4255 4256 4257 4258 4259 4260 4261 4262 4263 4264 4265 4266 4267 4268 4269 4270 4271 4272 4273 4274 4275 4276 4277 4278 4279 4280 4281 4282 4283 4284 4285 4286 4287 4288 4289 4290 4291 4292 4293 4294 4295 4296 4297 4298 4299 4300 4301 4302 4303 4304 4305 4306 4307 4308 4309

	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 =
	    cpu_to_le32(MPI2_SEP_REQ_SLOTSTATUS_PREDICTED_FAULT);
	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;
	}
}

/**
 * _scsih_send_event_to_turn_on_fault_led - fire delayed event
 * @ioc: per adapter object
 * @handle: device handle
 * Context: interrupt.
 *
 * Return nothing.
 */
static void
_scsih_send_event_to_turn_on_fault_led(struct MPT2SAS_ADAPTER *ioc, u16 handle)
{
	struct fw_event_work *fw_event;

	fw_event = kzalloc(sizeof(struct fw_event_work), GFP_ATOMIC);
	if (!fw_event)
		return;
	fw_event->event = MPT2SAS_TURN_ON_FAULT_LED;
	fw_event->device_handle = handle;
	fw_event->ioc = ioc;
	_scsih_fw_event_add(ioc, fw_event);
}

/**
 * _scsih_smart_predicted_fault - process smart errors
 * @ioc: per adapter object
 * @handle: device handle
 * Context: interrupt.
 *
 * Return nothing.
 */
static void
_scsih_smart_predicted_fault(struct MPT2SAS_ADAPTER *ioc, u16 handle)
{
E
Eric Moore 已提交
4310 4311 4312 4313 4314 4315 4316 4317 4318 4319 4320 4321 4322 4323 4324 4325 4326 4327 4328 4329 4330 4331 4332 4333 4334 4335
	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);

4336 4337
	if (ioc->pdev->subsystem_vendor == PCI_VENDOR_ID_IBM)
		_scsih_send_event_to_turn_on_fault_led(ioc, handle);
E
Eric Moore 已提交
4338 4339 4340 4341

	/* insert into event log */
	sz = offsetof(Mpi2EventNotificationReply_t, EventData) +
	     sizeof(Mpi2EventDataSasDeviceStatusChange_t);
4342
	event_reply = kzalloc(sz, GFP_ATOMIC);
E
Eric Moore 已提交
4343 4344 4345 4346 4347 4348 4349 4350 4351 4352 4353 4354 4355 4356 4357 4358 4359 4360 4361 4362 4363 4364 4365
	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);
}

/**
4366
 * _scsih_io_done - scsi request callback
E
Eric Moore 已提交
4367 4368
 * @ioc: per adapter object
 * @smid: system request message index
4369
 * @msix_index: MSIX table index supplied by the OS
E
Eric Moore 已提交
4370 4371
 * @reply: reply message frame(lower 32bit addr)
 *
4372
 * Callback handler when using _scsih_qcmd.
E
Eric Moore 已提交
4373
 *
4374 4375
 * 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
4376
 */
4377
static u8
4378
_scsih_io_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 msix_index, u32 reply)
E
Eric Moore 已提交
4379 4380 4381 4382 4383 4384 4385 4386 4387 4388
{
	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;
4389
	u32 response_code = 0;
4390
	unsigned long flags;
E
Eric Moore 已提交
4391 4392

	mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply);
4393
	scmd = _scsih_scsi_lookup_get_clear(ioc, smid);
E
Eric Moore 已提交
4394
	if (scmd == NULL)
4395
		return 1;
E
Eric Moore 已提交
4396 4397 4398 4399 4400 4401 4402 4403 4404 4405 4406 4407 4408 4409

	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;
	}
4410 4411 4412 4413 4414
	/*
	 * WARPDRIVE: If direct_io is set then it is directIO,
	 * the failed direct I/O should be redirected to volume
	 */
	if (_scsih_scsi_direct_io_get(ioc, smid)) {
4415 4416 4417
		spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
		ioc->scsi_lookup[smid - 1].scmd = scmd;
		spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
4418 4419 4420 4421 4422 4423 4424 4425 4426
		_scsih_scsi_direct_io_set(ioc, smid, 0);
		memcpy(mpi_request->CDB.CDB32, scmd->cmnd, scmd->cmd_len);
		mpi_request->DevHandle =
		    cpu_to_le16(sas_device_priv_data->sas_target->handle);
		mpt2sas_base_put_smid_scsi_io(ioc, smid,
		    sas_device_priv_data->sas_target->handle);
		return 0;
	}

E
Eric Moore 已提交
4427 4428

	/* turning off TLR */
4429 4430 4431 4432
	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
4433 4434
	if (!sas_device_priv_data->tlr_snoop_check) {
		sas_device_priv_data->tlr_snoop_check++;
4435 4436 4437 4438
	/* Make sure Device is not raid volume.
	 * We do not expose raid functionality to upper layer for warpdrive.
	 */
	if (!ioc->is_warpdrive && !_scsih_is_raid(&scmd->device->sdev_gendev) &&
4439
		sas_is_tlr_enabled(scmd->device) &&
4440 4441 4442 4443
		    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
4444 4445 4446 4447 4448 4449 4450 4451 4452 4453 4454 4455 4456 4457 4458 4459 4460 4461 4462 4463 4464 4465 4466
	}

	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);
4467
		u32 sz = min_t(u32, SCSI_SENSE_BUFFERSIZE,
E
Eric Moore 已提交
4468
		    le32_to_cpu(mpi_reply->SenseCount));
4469
		memcpy(scmd->sense_buffer, sense_data, sz);
E
Eric Moore 已提交
4470 4471 4472 4473 4474 4475 4476 4477 4478 4479 4480 4481 4482 4483 4484 4485 4486 4487 4488
		_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) {
4489 4490
			scmd->result = DID_TRANSPORT_DISRUPTED << 16;
			goto out;
E
Eric Moore 已提交
4491
		}
4492 4493
		scmd->result = DID_SOFT_ERROR << 16;
		break;
E
Eric Moore 已提交
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 4521 4522 4523 4524 4525 4526 4527 4528 4529 4530 4531 4532 4533 4534 4535 4536 4537 4538
	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;
4539 4540 4541 4542
		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
4543 4544 4545 4546 4547
			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
4548 4549 4550 4551 4552
	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
4553 4554 4555 4556 4557 4558 4559 4560 4561 4562 4563 4564 4565 4566 4567 4568 4569 4570 4571 4572 4573 4574
	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);
4575
	return 1;
E
Eric Moore 已提交
4576 4577 4578 4579 4580 4581 4582 4583 4584 4585 4586 4587 4588 4589
}

/**
 * _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
4590
_scsih_sas_host_refresh(struct MPT2SAS_ADAPTER *ioc)
E
Eric Moore 已提交
4591 4592 4593 4594 4595 4596
{
	u16 sz;
	u16 ioc_status;
	int i;
	Mpi2ConfigReply_t mpi_reply;
	Mpi2SasIOUnitPage0_t *sas_iounit_pg0 = NULL;
4597
	u16 attached_handle;
4598
	u8 link_rate;
E
Eric Moore 已提交
4599 4600 4601 4602 4603 4604 4605 4606 4607 4608 4609 4610 4611 4612

	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;
	}

4613 4614 4615 4616 4617 4618 4619
	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++) {
4620
		link_rate = sas_iounit_pg0->PhyData[i].NegotiatedLinkRate >> 4;
4621 4622 4623 4624 4625 4626
		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);
4627 4628
		if (attached_handle && link_rate < MPI2_SAS_NEG_LINK_RATE_1_5)
			link_rate = MPI2_SAS_NEG_LINK_RATE_1_5;
4629
		mpt2sas_transport_update_links(ioc, ioc->sas_hba.sas_address,
4630
		    attached_handle, i, link_rate);
4631
	}
E
Eric Moore 已提交
4632 4633 4634 4635 4636 4637 4638 4639 4640 4641 4642 4643 4644 4645 4646 4647 4648 4649 4650 4651 4652 4653 4654 4655 4656 4657 4658 4659 4660 4661 4662 4663 4664 4665 4666 4667 4668 4669 4670 4671 4672 4673 4674 4675 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 4705 4706 4707 4708 4709 4710 4711 4712 4713 4714 4715 4716 4717 4718 4719 4720 4721 4722 4723 4724 4725 4726 4727 4728 4729 4730 4731 4732 4733 4734 4735 4736 4737 4738 4739 4740 4741 4742 4743
 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;
		}
4744 4745 4746 4747 4748

		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
4749 4750 4751 4752 4753
		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,
4754
	    MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, ioc->sas_hba.handle))) {
E
Eric Moore 已提交
4755 4756 4757 4758 4759 4760 4761 4762 4763 4764 4765 4766 4767 4768 4769 4770 4771 4772 4773 4774 4775 4776 4777 4778 4779 4780 4781 4782 4783 4784 4785 4786 4787 4788 4789 4790 4791 4792 4793 4794 4795 4796 4797 4798 4799 4800
		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;
4801
	u64 sas_address, sas_address_parent = 0;
E
Eric Moore 已提交
4802 4803
	int i;
	unsigned long flags;
4804
	struct _sas_port *mpt2sas_port = NULL;
E
Eric Moore 已提交
4805 4806 4807 4808 4809
	int rc = 0;

	if (!handle)
		return -1;

4810
	if (ioc->shost_recovery || ioc->pci_error_recovery)
4811 4812
		return -1;

E
Eric Moore 已提交
4813 4814 4815 4816 4817 4818 4819 4820 4821 4822 4823 4824 4825 4826 4827 4828 4829
	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);
4830 4831 4832 4833 4834 4835 4836
	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
4837
		spin_lock_irqsave(&ioc->sas_node_lock, flags);
4838 4839
		sas_expander = mpt2sas_scsih_expander_find_by_sas_address(ioc,
		    sas_address_parent);
E
Eric Moore 已提交
4840 4841 4842 4843 4844 4845 4846 4847 4848
		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);
4849
	sas_address = le64_to_cpu(expander_pg0.SASAddress);
E
Eric Moore 已提交
4850 4851 4852 4853 4854 4855 4856 4857 4858 4859 4860 4861 4862 4863 4864 4865 4866
	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;
4867
	sas_expander->sas_address_parent = sas_address_parent;
E
Eric Moore 已提交
4868 4869 4870 4871
	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,
4872
	    handle, parent_handle, (unsigned long long)
E
Eric Moore 已提交
4873 4874 4875 4876 4877 4878 4879 4880 4881 4882 4883 4884 4885 4886 4887
	    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,
4888
	    sas_address_parent);
E
Eric Moore 已提交
4889 4890 4891 4892 4893 4894 4895 4896 4897 4898 4899 4900 4901
	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__);
4902 4903
			rc = -1;
			goto out_fail;
E
Eric Moore 已提交
4904 4905 4906
		}
		sas_expander->phy[i].handle = handle;
		sas_expander->phy[i].phy_id = i;
4907 4908 4909 4910 4911 4912 4913 4914 4915

		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
4916 4917 4918 4919 4920 4921 4922 4923 4924 4925 4926 4927 4928 4929 4930 4931
	}

	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:

4932 4933
	if (mpt2sas_port)
		mpt2sas_transport_port_remove(ioc, sas_expander->sas_address,
4934
		    sas_address_parent);
E
Eric Moore 已提交
4935 4936 4937 4938
	kfree(sas_expander);
	return rc;
}

4939 4940 4941 4942 4943 4944 4945 4946 4947 4948 4949 4950 4951 4952 4953 4954 4955 4956 4957 4958 4959 4960 4961 4962 4963 4964 4965 4966 4967 4968 4969 4970 4971 4972
/**
 * _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
4973
/**
4974
 * mpt2sas_expander_remove - removing expander object
E
Eric Moore 已提交
4975
 * @ioc: per adapter object
4976
 * @sas_address: expander sas_address
E
Eric Moore 已提交
4977 4978 4979
 *
 * Return nothing.
 */
4980 4981
void
mpt2sas_expander_remove(struct MPT2SAS_ADAPTER *ioc, u64 sas_address)
E
Eric Moore 已提交
4982 4983 4984 4985
{
	struct _sas_node *sas_expander;
	unsigned long flags;

4986 4987 4988
	if (ioc->shost_recovery)
		return;

E
Eric Moore 已提交
4989
	spin_lock_irqsave(&ioc->sas_node_lock, flags);
4990 4991
	sas_expander = mpt2sas_scsih_expander_find_by_sas_address(ioc,
	    sas_address);
4992 4993 4994 4995 4996
	if (!sas_expander) {
		spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
		return;
	}
	list_del(&sas_expander->list);
E
Eric Moore 已提交
4997 4998 4999 5000
	spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
	_scsih_expander_node_remove(ioc, sas_expander);
}

5001 5002 5003 5004 5005 5006 5007 5008 5009 5010 5011 5012 5013 5014 5015 5016 5017 5018 5019 5020 5021 5022 5023 5024 5025 5026 5027 5028 5029 5030 5031 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 5061 5062 5063 5064 5065 5066 5067 5068 5069 5070 5071 5072 5073 5074 5075 5076 5077 5078 5079 5080 5081 5082 5083 5084 5085 5086 5087 5088 5089 5090 5091 5092 5093 5094 5095 5096 5097 5098 5099 5100 5101 5102 5103 5104 5105 5106 5107 5108 5109 5110 5111 5112 5113 5114 5115 5116 5117 5118 5119 5120 5121 5122 5123 5124 5125 5126 5127 5128
/**
 * _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
5129 5130 5131 5132 5133 5134 5135 5136 5137 5138 5139 5140 5141 5142 5143 5144 5145 5146 5147 5148 5149 5150 5151 5152 5153 5154 5155 5156 5157 5158 5159 5160 5161 5162 5163 5164 5165 5166
/**
 * _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;
	}

5167 5168
	sas_address = le64_to_cpu(sas_device_pg0.SASAddress);

E
Eric Moore 已提交
5169 5170 5171 5172 5173 5174 5175 5176 5177 5178
	/* 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;
	}

5179 5180 5181
	/* 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
5182 5183 5184 5185 5186 5187 5188 5189 5190 5191 5192 5193 5194 5195 5196 5197
		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);

5198
	if (sas_device)
E
Eric Moore 已提交
5199 5200 5201 5202 5203 5204 5205 5206 5207 5208 5209
		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;
5210 5211 5212 5213 5214
	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
5215 5216 5217 5218 5219 5220
	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;
5221
	sas_device->phy = sas_device_pg0.PhyNum;
E
Eric Moore 已提交
5222 5223

	/* get enclosure_logical_id */
5224 5225 5226
	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
5227 5228 5229 5230 5231 5232
		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);

5233
	if (ioc->wait_for_discovery_to_complete)
E
Eric Moore 已提交
5234 5235 5236 5237 5238 5239 5240
		_scsih_sas_device_init_add(ioc, sas_device);
	else
		_scsih_sas_device_add(ioc, sas_device);

	return 0;
}

5241 5242 5243 5244 5245 5246 5247 5248 5249 5250 5251 5252 5253
/**
 * _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;
5254

5255 5256 5257 5258 5259
	if (!sas_device)
		return;

	memcpy(&sas_device_backup, sas_device, sizeof(struct _sas_device));
	_scsih_sas_device_remove(ioc, sas_device);
5260

5261 5262 5263 5264 5265 5266 5267 5268
	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;
5269 5270 5271
		_scsih_ublock_io_device(ioc, sas_device_backup.handle);
		sas_target_priv_data->handle =
		     MPT2SAS_INVALID_DEVICE_HANDLE;
5272 5273 5274 5275
	}

	_scsih_ublock_io_device(ioc, sas_device_backup.handle);

5276 5277 5278 5279
	if (!ioc->hide_drives)
		mpt2sas_transport_port_remove(ioc,
		    sas_device_backup.sas_address,
		    sas_device_backup.sas_address_parent);
E
Eric Moore 已提交
5280 5281

	printk(MPT2SAS_INFO_FMT "removing handle(0x%04x), sas_addr"
5282 5283
	    "(0x%016llx)\n", ioc->name, sas_device_backup.handle,
	    (unsigned long long) sas_device_backup.sas_address);
E
Eric Moore 已提交
5284

5285 5286 5287 5288
	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
5289 5290
}

5291 5292 5293 5294 5295 5296 5297 5298 5299 5300 5301 5302 5303 5304 5305 5306 5307 5308 5309 5310 5311 5312 5313 5314 5315 5316 5317
/**
 * 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
5318 5319 5320 5321 5322 5323 5324 5325 5326 5327 5328 5329 5330 5331 5332 5333
#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;
5334
	u8 link_rate, prev_link_rate;
E
Eric Moore 已提交
5335 5336 5337 5338 5339 5340 5341 5342 5343

	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:
5344
	case 0:
E
Eric Moore 已提交
5345 5346 5347 5348 5349 5350 5351 5352 5353
		status_str =  "responding";
		break;
	case MPI2_EVENT_SAS_TOPO_ES_DELAY_NOT_RESPONDING:
		status_str = "remove delay";
		break;
	default:
		status_str = "unknown status";
		break;
	}
5354
	printk(MPT2SAS_INFO_FMT "sas topology change: (%s)\n",
E
Eric Moore 已提交
5355
	    ioc->name, status_str);
5356
	printk(KERN_INFO "\thandle(0x%04x), enclosure_handle(0x%04x) "
E
Eric Moore 已提交
5357 5358 5359 5360 5361 5362 5363 5364 5365 5366 5367 5368 5369
	    "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:
5370
			status_str = "target add";
E
Eric Moore 已提交
5371 5372
			break;
		case MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING:
5373
			status_str = "target remove";
E
Eric Moore 已提交
5374 5375
			break;
		case MPI2_EVENT_SAS_TOPO_RC_DELAY_NOT_RESPONDING:
5376
			status_str = "delay target remove";
E
Eric Moore 已提交
5377 5378
			break;
		case MPI2_EVENT_SAS_TOPO_RC_PHY_CHANGED:
5379
			status_str = "link rate change";
E
Eric Moore 已提交
5380 5381
			break;
		case MPI2_EVENT_SAS_TOPO_RC_NO_CHANGE:
5382
			status_str = "target responding";
E
Eric Moore 已提交
5383 5384
			break;
		default:
5385
			status_str = "unknown";
E
Eric Moore 已提交
5386 5387
			break;
		}
5388 5389
		link_rate = event_data->PHY[i].LinkRate >> 4;
		prev_link_rate = event_data->PHY[i].LinkRate & 0xF;
5390
		printk(KERN_INFO "\tphy(%02d), attached_handle(0x%04x): %s:"
5391 5392 5393
		    " 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
5394 5395 5396 5397 5398 5399 5400
	}
}
#endif

/**
 * _scsih_sas_topology_change_event - handle topology changes
 * @ioc: per adapter object
5401
 * @fw_event: The fw_event_work object
E
Eric Moore 已提交
5402 5403 5404 5405
 * Context: user.
 *
 */
static void
5406
_scsih_sas_topology_change_event(struct MPT2SAS_ADAPTER *ioc,
E
Eric Moore 已提交
5407 5408 5409 5410 5411
    struct fw_event_work *fw_event)
{
	int i;
	u16 parent_handle, handle;
	u16 reason_code;
5412
	u8 phy_number, max_phys;
E
Eric Moore 已提交
5413
	struct _sas_node *sas_expander;
5414 5415
	struct _sas_device *sas_device;
	u64 sas_address;
E
Eric Moore 已提交
5416
	unsigned long flags;
5417
	u8 link_rate, prev_link_rate;
5418
	Mpi2EventDataSasTopologyChangeList_t *event_data = fw_event->event_data;
E
Eric Moore 已提交
5419 5420 5421 5422 5423 5424

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

5425
	if (ioc->remove_host || ioc->pci_error_recovery)
5426 5427
		return;

E
Eric Moore 已提交
5428 5429 5430
	if (!ioc->sas_hba.num_phys)
		_scsih_sas_host_add(ioc);
	else
5431
		_scsih_sas_host_refresh(ioc);
E
Eric Moore 已提交
5432 5433

	if (fw_event->ignore) {
5434
		dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "ignoring expander "
E
Eric Moore 已提交
5435 5436 5437 5438 5439 5440 5441 5442 5443 5444 5445
		    "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;

5446 5447 5448 5449
	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);
5450
	if (sas_expander) {
5451
		sas_address = sas_expander->sas_address;
5452 5453
		max_phys = sas_expander->num_phys;
	} else if (parent_handle < ioc->sas_hba.num_phys) {
5454
		sas_address = ioc->sas_hba.sas_address;
5455 5456
		max_phys = ioc->sas_hba.num_phys;
	} else
5457 5458
		return;

E
Eric Moore 已提交
5459 5460 5461
	/* handle siblings events */
	for (i = 0; i < event_data->NumEntries; i++) {
		if (fw_event->ignore) {
5462
			dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "ignoring "
E
Eric Moore 已提交
5463 5464 5465
			    "expander event\n", ioc->name));
			return;
		}
5466 5467
		if (ioc->shost_recovery || ioc->remove_host ||
		    ioc->pci_error_recovery)
5468
			return;
5469
		phy_number = event_data->StartPhyNum + i;
5470 5471
		if (phy_number >= max_phys)
			continue;
5472 5473 5474 5475 5476
		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
5477 5478 5479 5480
			continue;
		handle = le16_to_cpu(event_data->PHY[i].AttachedDevHandle);
		if (!handle)
			continue;
5481
		link_rate = event_data->PHY[i].LinkRate >> 4;
5482
		prev_link_rate = event_data->PHY[i].LinkRate & 0xF;
E
Eric Moore 已提交
5483 5484
		switch (reason_code) {
		case MPI2_EVENT_SAS_TOPO_RC_PHY_CHANGED:
5485

5486 5487 5488
			if (ioc->shost_recovery)
				break;

5489 5490 5491 5492 5493 5494
			if (link_rate == prev_link_rate)
				break;

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

5495 5496 5497 5498
			if (link_rate < MPI2_SAS_NEG_LINK_RATE_1_5)
				break;

			_scsih_check_device(ioc, handle);
5499
			break;
E
Eric Moore 已提交
5500
		case MPI2_EVENT_SAS_TOPO_RC_TARG_ADDED:
5501

5502 5503 5504
			if (ioc->shost_recovery)
				break;

5505 5506 5507
			mpt2sas_transport_update_links(ioc, sas_address,
			    handle, phy_number, link_rate);

5508
			_scsih_add_device(ioc, handle, phy_number, 0);
E
Eric Moore 已提交
5509 5510
			break;
		case MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING:
5511 5512 5513 5514 5515 5516 5517 5518 5519 5520 5521

			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
5522 5523 5524 5525 5526
			break;
		}
	}

	/* handle expander removal */
5527 5528
	if (event_data->ExpStatus == MPI2_EVENT_SAS_TOPO_ES_NOT_RESPONDING &&
	    sas_expander)
5529
		mpt2sas_expander_remove(ioc, sas_address);
E
Eric Moore 已提交
5530 5531 5532 5533 5534 5535 5536 5537 5538 5539 5540 5541 5542 5543 5544 5545 5546 5547 5548 5549 5550 5551 5552 5553 5554 5555 5556 5557 5558 5559 5560 5561 5562 5563 5564 5565 5566 5567 5568 5569 5570 5571 5572 5573 5574 5575 5576 5577 5578 5579 5580

}

#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;
5581 5582 5583 5584 5585 5586
	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
5587 5588 5589 5590
	default:
		reason_str = "unknown reason";
		break;
	}
5591
	printk(MPT2SAS_INFO_FMT "device status change: (%s)\n"
5592 5593 5594 5595
	    "\thandle(0x%04x), sas address(0x%016llx), tag(%d)",
	    ioc->name, reason_str, le16_to_cpu(event_data->DevHandle),
	    (unsigned long long)le64_to_cpu(event_data->SASAddress),
	    le16_to_cpu(event_data->TaskTag));
E
Eric Moore 已提交
5596
	if (event_data->ReasonCode == MPI2_EVENT_SAS_DEV_STAT_RC_SMART_DATA)
5597
		printk(MPT2SAS_INFO_FMT ", ASC(0x%x), ASCQ(0x%x)\n", ioc->name,
E
Eric Moore 已提交
5598 5599 5600 5601 5602 5603 5604 5605
		    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
5606
 * @fw_event: The fw_event_work object
E
Eric Moore 已提交
5607 5608 5609 5610 5611
 * Context: user.
 *
 * Return nothing.
 */
static void
5612 5613
_scsih_sas_device_status_change_event(struct MPT2SAS_ADAPTER *ioc,
    struct fw_event_work *fw_event)
E
Eric Moore 已提交
5614
{
5615 5616
	struct MPT2SAS_TARGET *target_priv_data;
	struct _sas_device *sas_device;
5617
	u64 sas_address;
5618 5619 5620 5621
	unsigned long flags;
	Mpi2EventDataSasDeviceStatusChange_t *event_data =
	    fw_event->event_data;

E
Eric Moore 已提交
5622 5623
#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
	if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
5624
		_scsih_sas_device_status_change_event_debug(ioc,
5625
		     event_data);
E
Eric Moore 已提交
5626
#endif
5627

5628 5629 5630 5631 5632 5633
	/* In MPI Revision K (0xC), the internal device reset complete was
	 * implemented, so avoid setting tm_busy flag for older firmware.
	 */
	if ((ioc->facts.HeaderVersion >> 8) < 0xC)
		return;

5634
	if (event_data->ReasonCode !=
5635
	    MPI2_EVENT_SAS_DEV_STAT_RC_INTERNAL_DEVICE_RESET &&
5636 5637
	   event_data->ReasonCode !=
	    MPI2_EVENT_SAS_DEV_STAT_RC_CMP_INTERNAL_DEV_RESET)
5638 5639 5640 5641 5642 5643 5644 5645 5646 5647 5648 5649 5650 5651 5652 5653 5654 5655 5656 5657
		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
5658 5659 5660 5661 5662 5663 5664 5665 5666 5667 5668 5669 5670 5671 5672 5673 5674 5675 5676 5677 5678 5679 5680 5681 5682 5683 5684 5685 5686
}

#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;
	}

5687
	printk(MPT2SAS_INFO_FMT "enclosure status change: (%s)\n"
E
Eric Moore 已提交
5688 5689 5690 5691 5692 5693 5694 5695 5696 5697 5698
	    "\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
5699
 * @fw_event: The fw_event_work object
E
Eric Moore 已提交
5700 5701 5702 5703 5704 5705
 * Context: user.
 *
 * Return nothing.
 */
static void
_scsih_sas_enclosure_dev_status_change_event(struct MPT2SAS_ADAPTER *ioc,
5706
    struct fw_event_work *fw_event)
E
Eric Moore 已提交
5707 5708 5709 5710
{
#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
	if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
		_scsih_sas_enclosure_dev_status_change_event_debug(ioc,
5711
		     fw_event->event_data);
E
Eric Moore 已提交
5712 5713 5714 5715 5716 5717
#endif
}

/**
 * _scsih_sas_broadcast_primative_event - handle broadcast events
 * @ioc: per adapter object
5718
 * @fw_event: The fw_event_work object
E
Eric Moore 已提交
5719 5720 5721 5722 5723
 * Context: user.
 *
 * Return nothing.
 */
static void
5724 5725
_scsih_sas_broadcast_primative_event(struct MPT2SAS_ADAPTER *ioc,
    struct fw_event_work *fw_event)
E
Eric Moore 已提交
5726 5727
{
	struct scsi_cmnd *scmd;
5728
	struct scsi_device *sdev;
E
Eric Moore 已提交
5729 5730 5731 5732 5733 5734
	u16 smid, handle;
	u32 lun;
	struct MPT2SAS_DEVICE *sas_device_priv_data;
	u32 termination_count;
	u32 query_count;
	Mpi2SCSITaskManagementReply_t *mpi_reply;
5735
	Mpi2EventDataSasBroadcastPrimitive_t *event_data = fw_event->event_data;
5736
	u16 ioc_status;
5737 5738
	unsigned long flags;
	int r;
5739 5740
	u8 max_retries = 0;
	u8 task_abort_retries;
5741

5742 5743 5744 5745 5746 5747
	mutex_lock(&ioc->tm_cmds.mutex);
	dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: enter: phy number(%d), "
	    "width(%d)\n", ioc->name, __func__, event_data->PhyNum,
	     event_data->PortWidth));

	_scsih_block_io_all_device(ioc);
E
Eric Moore 已提交
5748

5749
	spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
5750 5751 5752 5753 5754 5755 5756 5757 5758 5759 5760 5761
	mpi_reply = ioc->tm_cmds.reply;
broadcast_aen_retry:

	/* sanity checks for retrying this loop */
	if (max_retries++ == 5) {
		dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: giving up\n",
		    ioc->name, __func__));
		goto out;
	} else if (max_retries > 1)
		dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: %d retry\n",
		    ioc->name, __func__, max_retries - 1));

E
Eric Moore 已提交
5762 5763
	termination_count = 0;
	query_count = 0;
5764
	for (smid = 1; smid <= ioc->scsiio_depth; smid++) {
5765
		if (ioc->shost_recovery)
5766
			goto out;
E
Eric Moore 已提交
5767 5768 5769
		scmd = _scsih_scsi_lookup_get(ioc, smid);
		if (!scmd)
			continue;
5770 5771
		sdev = scmd->device;
		sas_device_priv_data = sdev->hostdata;
E
Eric Moore 已提交
5772 5773 5774 5775 5776 5777 5778 5779 5780 5781 5782 5783 5784 5785 5786
		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++;

5787
		if (ioc->shost_recovery)
5788 5789
			goto out;

5790
		spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
5791 5792 5793 5794 5795 5796 5797 5798 5799 5800
		r = mpt2sas_scsih_issue_tm(ioc, handle, 0, 0, lun,
		    MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK, smid, 30, 0,
		    TM_MUTEX_OFF);
		if (r == FAILED) {
			sdev_printk(KERN_WARNING, sdev,
			    "mpt2sas_scsih_issue_tm: FAILED when sending "
			    "QUERY_TASK: scmd(%p)\n", scmd);
			spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
			goto broadcast_aen_retry;
		}
5801 5802
		ioc_status = le16_to_cpu(mpi_reply->IOCStatus)
		    & MPI2_IOCSTATUS_MASK;
5803 5804 5805 5806 5807 5808 5809 5810 5811 5812
		if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
			sdev_printk(KERN_WARNING, sdev, "query task: FAILED "
			    "with IOCSTATUS(0x%04x), scmd(%p)\n", ioc_status,
			    scmd);
			spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
			goto broadcast_aen_retry;
		}

		/* see if IO is still owned by IOC and target */
		if (mpi_reply->ResponseCode ==
E
Eric Moore 已提交
5813 5814
		     MPI2_SCSITASKMGMT_RSP_TM_SUCCEEDED ||
		     mpi_reply->ResponseCode ==
5815
		     MPI2_SCSITASKMGMT_RSP_IO_QUEUED_ON_IOC) {
5816
			spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
E
Eric Moore 已提交
5817
			continue;
5818
		}
5819 5820 5821 5822 5823 5824 5825 5826 5827 5828
		task_abort_retries = 0;
 tm_retry:
		if (task_abort_retries++ == 60) {
			dewtprintk(ioc, printk(MPT2SAS_INFO_FMT
			    "%s: ABORT_TASK: giving up\n", ioc->name,
			    __func__));
			spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
			goto broadcast_aen_retry;
		}

5829
		if (ioc->shost_recovery)
5830 5831
			goto out_no_lock;

5832 5833
		r = mpt2sas_scsih_issue_tm(ioc, handle, sdev->channel, sdev->id,
		    sdev->lun, MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK, smid, 30,
5834 5835 5836 5837
		    scmd->serial_number, TM_MUTEX_OFF);
		if (r == FAILED) {
			sdev_printk(KERN_WARNING, sdev,
			    "mpt2sas_scsih_issue_tm: ABORT_TASK: FAILED : "
5838
			    "scmd(%p)\n", scmd);
5839 5840 5841 5842 5843 5844 5845 5846 5847
			goto tm_retry;
		}

		if (task_abort_retries > 1)
			sdev_printk(KERN_WARNING, sdev,
			    "mpt2sas_scsih_issue_tm: ABORT_TASK: RETRIES (%d):"
			    " scmd(%p)\n",
			    task_abort_retries - 1, scmd);

E
Eric Moore 已提交
5848
		termination_count += le32_to_cpu(mpi_reply->TerminationCount);
5849
		spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
E
Eric Moore 已提交
5850
	}
5851 5852 5853 5854 5855 5856 5857 5858 5859

	if (ioc->broadcast_aen_pending) {
		dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: loop back due to"
		     " pending AEN\n", ioc->name, __func__));
		 ioc->broadcast_aen_pending = 0;
		 goto broadcast_aen_retry;
	}

 out:
5860
	spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
5861
 out_no_lock:
E
Eric Moore 已提交
5862

5863
	dewtprintk(ioc, printk(MPT2SAS_INFO_FMT
E
Eric Moore 已提交
5864 5865
	    "%s - exit, query_count = %d termination_count = %d\n",
	    ioc->name, __func__, query_count, termination_count));
5866 5867

	ioc->broadcast_aen_busy = 0;
5868
	if (!ioc->shost_recovery)
5869 5870
		_scsih_ublock_io_all_device(ioc);
	mutex_unlock(&ioc->tm_cmds.mutex);
E
Eric Moore 已提交
5871 5872 5873 5874 5875
}

/**
 * _scsih_sas_discovery_event - handle discovery events
 * @ioc: per adapter object
5876
 * @fw_event: The fw_event_work object
E
Eric Moore 已提交
5877 5878 5879 5880 5881
 * Context: user.
 *
 * Return nothing.
 */
static void
5882 5883
_scsih_sas_discovery_event(struct MPT2SAS_ADAPTER *ioc,
    struct fw_event_work *fw_event)
E
Eric Moore 已提交
5884
{
5885 5886
	Mpi2EventDataSasDiscovery_t *event_data = fw_event->event_data;

E
Eric Moore 已提交
5887 5888
#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
	if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK) {
5889
		printk(MPT2SAS_INFO_FMT "discovery event: (%s)", ioc->name,
E
Eric Moore 已提交
5890 5891 5892
		    (event_data->ReasonCode == MPI2_EVENT_SAS_DISC_RC_STARTED) ?
		    "start" : "stop");
	if (event_data->DiscoveryStatus)
5893 5894
		printk("discovery_status(0x%08x)",
		    le32_to_cpu(event_data->DiscoveryStatus));
E
Eric Moore 已提交
5895 5896 5897 5898 5899 5900 5901 5902 5903 5904 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
	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)
{
5932
	struct MPT2SAS_TARGET *sas_target_priv_data;
E
Eric Moore 已提交
5933

5934 5935 5936
	if (starget == NULL)
		return;
	sas_target_priv_data = starget->hostdata;
E
Eric Moore 已提交
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 5979 5980 5981 5982 5983 5984 5985 5986 5987 5988 5989 5990
	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);
5991
	if (!ioc->wait_for_discovery_to_complete) {
E
Eric Moore 已提交
5992 5993 5994 5995 5996 5997 5998 5999 6000 6001 6002
		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
6003
 * @handle: volume device handle
E
Eric Moore 已提交
6004 6005 6006 6007 6008
 * Context: user.
 *
 * Return nothing.
 */
static void
6009
_scsih_sas_volume_delete(struct MPT2SAS_ADAPTER *ioc, u16 handle)
E
Eric Moore 已提交
6010 6011 6012 6013 6014 6015 6016 6017 6018 6019 6020 6021 6022 6023 6024
{
	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);
	}
6025 6026 6027
	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
6028 6029 6030 6031 6032 6033 6034 6035 6036 6037 6038 6039 6040 6041 6042 6043 6044 6045 6046 6047 6048 6049 6050 6051 6052 6053 6054 6055
	_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;
6056
	clear_bit(handle, ioc->pd_handles);
E
Eric Moore 已提交
6057 6058 6059 6060 6061 6062 6063 6064 6065 6066 6067 6068 6069 6070 6071 6072 6073 6074 6075 6076 6077 6078 6079 6080 6081 6082 6083 6084 6085 6086
	_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);
6087
	set_bit(handle, ioc->pd_handles);
E
Eric Moore 已提交
6088
	_scsih_reprobe_target(sas_device->starget, 1);
6089

E
Eric Moore 已提交
6090 6091 6092 6093 6094 6095 6096 6097 6098 6099 6100 6101 6102 6103 6104 6105 6106 6107 6108 6109 6110 6111 6112
}

/**
 * _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;
6113
	_scsih_remove_device(ioc, sas_device);
E
Eric Moore 已提交
6114 6115 6116 6117 6118 6119 6120 6121 6122 6123 6124 6125 6126 6127 6128 6129 6130
}

/**
 * _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);
6131 6132 6133
	Mpi2ConfigReply_t mpi_reply;
	Mpi2SasDevicePage0_t sas_device_pg0;
	u32 ioc_status;
6134 6135
	u64 sas_address;
	u16 parent_handle;
E
Eric Moore 已提交
6136

6137 6138
	set_bit(handle, ioc->pd_handles);

E
Eric Moore 已提交
6139 6140 6141
	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);
6142
	if (sas_device)
6143 6144 6145 6146 6147 6148 6149 6150 6151 6152 6153 6154 6155 6156 6157 6158 6159
		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;
	}

6160 6161 6162 6163
	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);
6164 6165

	_scsih_add_device(ioc, handle, 0, 1);
E
Eric Moore 已提交
6166 6167 6168 6169 6170 6171 6172 6173 6174 6175 6176 6177 6178 6179 6180 6181 6182 6183 6184 6185 6186 6187
}

#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];

6188
	printk(MPT2SAS_INFO_FMT "raid config change: (%s), elements(%d)\n",
E
Eric Moore 已提交
6189 6190 6191 6192 6193 6194 6195 6196 6197 6198 6199 6200 6201 6202 6203 6204 6205 6206 6207 6208 6209 6210 6211 6212 6213 6214 6215 6216 6217 6218 6219 6220 6221 6222 6223 6224 6225 6226 6227 6228 6229 6230 6231 6232 6233 6234 6235 6236 6237 6238 6239 6240
	    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;
		}
6241
		printk(KERN_INFO "\t(%s:%s), vol handle(0x%04x), "
E
Eric Moore 已提交
6242 6243 6244 6245 6246 6247 6248 6249 6250 6251 6252
		    "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
6253
 * @fw_event: The fw_event_work object
E
Eric Moore 已提交
6254 6255 6256 6257 6258
 * Context: user.
 *
 * Return nothing.
 */
static void
6259 6260
_scsih_sas_ir_config_change_event(struct MPT2SAS_ADAPTER *ioc,
    struct fw_event_work *fw_event)
E
Eric Moore 已提交
6261 6262 6263
{
	Mpi2EventIrConfigElement_t *element;
	int i;
6264
	u8 foreign_config;
6265
	Mpi2EventDataIrConfigChangeList_t *event_data = fw_event->event_data;
E
Eric Moore 已提交
6266 6267

#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
6268 6269
	if ((ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
	    && !ioc->hide_ir_msg)
E
Eric Moore 已提交
6270 6271 6272
		_scsih_sas_ir_config_change_event_debug(ioc, event_data);

#endif
6273 6274 6275 6276

	if (ioc->shost_recovery)
		return;

6277 6278
	foreign_config = (le32_to_cpu(event_data->Flags) &
	    MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG) ? 1 : 0;
E
Eric Moore 已提交
6279 6280 6281 6282 6283 6284 6285

	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:
6286 6287
			if (!foreign_config)
				_scsih_sas_volume_add(ioc, element);
E
Eric Moore 已提交
6288 6289 6290
			break;
		case MPI2_EVENT_IR_CHANGE_RC_VOLUME_DELETED:
		case MPI2_EVENT_IR_CHANGE_RC_REMOVED:
6291
			if (!foreign_config)
6292 6293
				_scsih_sas_volume_delete(ioc,
				    le16_to_cpu(element->VolDevHandle));
E
Eric Moore 已提交
6294 6295
			break;
		case MPI2_EVENT_IR_CHANGE_RC_PD_CREATED:
6296 6297
			if (!ioc->is_warpdrive)
				_scsih_sas_pd_hide(ioc, element);
E
Eric Moore 已提交
6298 6299
			break;
		case MPI2_EVENT_IR_CHANGE_RC_PD_DELETED:
6300 6301
			if (!ioc->is_warpdrive)
				_scsih_sas_pd_expose(ioc, element);
E
Eric Moore 已提交
6302 6303
			break;
		case MPI2_EVENT_IR_CHANGE_RC_HIDE:
6304 6305
			if (!ioc->is_warpdrive)
				_scsih_sas_pd_add(ioc, element);
E
Eric Moore 已提交
6306 6307
			break;
		case MPI2_EVENT_IR_CHANGE_RC_UNHIDE:
6308 6309
			if (!ioc->is_warpdrive)
				_scsih_sas_pd_delete(ioc, element);
E
Eric Moore 已提交
6310 6311 6312 6313 6314 6315 6316 6317
			break;
		}
	}
}

/**
 * _scsih_sas_ir_volume_event - IR volume event
 * @ioc: per adapter object
6318
 * @fw_event: The fw_event_work object
E
Eric Moore 已提交
6319 6320 6321 6322 6323
 * Context: user.
 *
 * Return nothing.
 */
static void
6324 6325
_scsih_sas_ir_volume_event(struct MPT2SAS_ADAPTER *ioc,
    struct fw_event_work *fw_event)
E
Eric Moore 已提交
6326 6327 6328 6329 6330 6331 6332
{
	u64 wwid;
	unsigned long flags;
	struct _raid_device *raid_device;
	u16 handle;
	u32 state;
	int rc;
6333
	Mpi2EventDataIrVolume_t *event_data = fw_event->event_data;
E
Eric Moore 已提交
6334

6335 6336 6337
	if (ioc->shost_recovery)
		return;

E
Eric Moore 已提交
6338 6339 6340 6341 6342
	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);
6343 6344 6345 6346
	if (!ioc->hide_ir_msg)
		dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: handle(0x%04x), "
		    "old(0x%08x), new(0x%08x)\n", ioc->name, __func__,  handle,
		    le32_to_cpu(event_data->PreviousValue), state));
E
Eric Moore 已提交
6347 6348 6349 6350

	switch (state) {
	case MPI2_RAID_VOL_STATE_MISSING:
	case MPI2_RAID_VOL_STATE_FAILED:
6351
		_scsih_sas_volume_delete(ioc, handle);
E
Eric Moore 已提交
6352 6353 6354 6355 6356
		break;

	case MPI2_RAID_VOL_STATE_ONLINE:
	case MPI2_RAID_VOL_STATE_DEGRADED:
	case MPI2_RAID_VOL_STATE_OPTIMAL:
6357 6358 6359 6360 6361

		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
6362 6363 6364 6365 6366 6367 6368 6369 6370 6371 6372 6373 6374 6375 6376 6377 6378 6379 6380 6381 6382 6383 6384 6385 6386 6387 6388 6389 6390 6391 6392 6393 6394 6395 6396 6397 6398 6399 6400
		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
6401
 * @fw_event: The fw_event_work object
E
Eric Moore 已提交
6402 6403 6404 6405 6406
 * Context: user.
 *
 * Return nothing.
 */
static void
6407 6408
_scsih_sas_ir_physical_disk_event(struct MPT2SAS_ADAPTER *ioc,
    struct fw_event_work *fw_event)
E
Eric Moore 已提交
6409
{
6410
	u16 handle, parent_handle;
E
Eric Moore 已提交
6411 6412 6413
	u32 state;
	struct _sas_device *sas_device;
	unsigned long flags;
6414 6415 6416
	Mpi2ConfigReply_t mpi_reply;
	Mpi2SasDevicePage0_t sas_device_pg0;
	u32 ioc_status;
6417
	Mpi2EventDataIrPhysicalDisk_t *event_data = fw_event->event_data;
6418
	u64 sas_address;
E
Eric Moore 已提交
6419

6420 6421 6422
	if (ioc->shost_recovery)
		return;

E
Eric Moore 已提交
6423 6424 6425 6426 6427 6428
	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);

6429 6430 6431 6432
	if (!ioc->hide_ir_msg)
		dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: handle(0x%04x), "
		    "old(0x%08x), new(0x%08x)\n", ioc->name, __func__,  handle,
		    le32_to_cpu(event_data->PreviousValue), state));
E
Eric Moore 已提交
6433 6434 6435 6436 6437 6438

	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:
6439 6440
	case MPI2_RAID_PD_STATE_HOT_SPARE:

6441 6442
		if (!ioc->is_warpdrive)
			set_bit(handle, ioc->pd_handles);
6443 6444 6445 6446 6447 6448

		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)
6449 6450 6451 6452 6453 6454 6455 6456 6457 6458 6459 6460 6461 6462 6463 6464 6465 6466
			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;
		}

6467 6468 6469 6470
		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);
6471 6472 6473

		_scsih_add_device(ioc, handle, 0, 1);

E
Eric Moore 已提交
6474 6475
		break;

6476
	case MPI2_RAID_PD_STATE_OFFLINE:
E
Eric Moore 已提交
6477 6478 6479 6480 6481 6482 6483 6484 6485 6486 6487 6488 6489 6490 6491 6492 6493 6494 6495 6496 6497 6498 6499 6500 6501 6502 6503 6504 6505 6506 6507 6508
	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;
6509 6510 6511 6512 6513
	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
6514 6515 6516
		break;
	}

6517 6518 6519
	if (!reason_str)
		return;

E
Eric Moore 已提交
6520 6521 6522 6523 6524 6525 6526 6527 6528 6529 6530
	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
6531
 * @fw_event: The fw_event_work object
E
Eric Moore 已提交
6532 6533 6534 6535 6536
 * Context: user.
 *
 * Return nothing.
 */
static void
6537 6538
_scsih_sas_ir_operation_status_event(struct MPT2SAS_ADAPTER *ioc,
    struct fw_event_work *fw_event)
E
Eric Moore 已提交
6539
{
6540 6541 6542 6543 6544
	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
6545
#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
6546 6547
	if ((ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
	    && !ioc->hide_ir_msg)
6548
		_scsih_sas_ir_operation_status_event_debug(ioc,
6549
		     event_data);
E
Eric Moore 已提交
6550
#endif
6551 6552 6553 6554 6555 6556 6557 6558 6559 6560 6561 6562 6563 6564 6565 6566 6567

	/* 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
6568 6569
}

6570 6571 6572 6573 6574 6575 6576 6577 6578 6579 6580 6581 6582 6583 6584 6585 6586 6587 6588 6589
/**
 * _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
6590 6591 6592 6593 6594 6595 6596 6597 6598 6599 6600 6601 6602 6603 6604 6605
/**
 * _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)
{
6606
	struct MPT2SAS_TARGET *sas_target_priv_data = NULL;
E
Eric Moore 已提交
6607 6608 6609 6610 6611 6612 6613
	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 &&
6614
		    sas_device->slot == slot) {
E
Eric Moore 已提交
6615
			sas_device->responding = 1;
6616
			starget = sas_device->starget;
6617 6618 6619 6620 6621 6622
			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;
6623 6624 6625 6626 6627 6628 6629 6630 6631
			if (starget)
				starget_printk(KERN_INFO, 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);
E
Eric Moore 已提交
6632 6633 6634 6635 6636
			if (sas_device->handle == handle)
				goto out;
			printk(KERN_INFO "\thandle changed from(0x%04x)!!!\n",
			    sas_device->handle);
			sas_device->handle = handle;
6637 6638
			if (sas_target_priv_data)
				sas_target_priv_data->handle = handle;
E
Eric Moore 已提交
6639 6640 6641 6642 6643 6644 6645 6646 6647 6648 6649 6650 6651 6652 6653 6654 6655 6656 6657 6658 6659 6660 6661 6662 6663 6664 6665
			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;

6666
	printk(MPT2SAS_INFO_FMT "search for end-devices: start\n", ioc->name);
E
Eric Moore 已提交
6667 6668

	if (list_empty(&ioc->sas_device_list))
6669
		goto out;
E
Eric Moore 已提交
6670 6671 6672 6673 6674 6675 6676 6677 6678 6679 6680 6681 6682 6683 6684 6685 6686 6687

	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);
	}
6688 6689 6690
out:
	printk(MPT2SAS_INFO_FMT "search for end-devices: complete\n",
	    ioc->name);
E
Eric Moore 已提交
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
}

/**
 * _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) {
6716 6717 6718 6719 6720 6721
			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
6722 6723 6724 6725
			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);
6726 6727 6728 6729 6730 6731
			/*
			 * WARPDRIVE: The handles of the PDs might have changed
			 * across the host reset so re-initialize the
			 * required data for Direct IO
			 */
			_scsih_init_warpdrive_properties(ioc, raid_device);
E
Eric Moore 已提交
6732 6733 6734 6735 6736
			if (raid_device->handle == handle)
				goto out;
			printk(KERN_INFO "\thandle changed from(0x%04x)!!!\n",
			    raid_device->handle);
			raid_device->handle = handle;
6737 6738
			if (sas_target_priv_data)
				sas_target_priv_data->handle = handle;
E
Eric Moore 已提交
6739 6740 6741 6742 6743 6744 6745 6746 6747 6748 6749 6750 6751 6752 6753 6754 6755 6756 6757 6758
			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;
6759
	Mpi2RaidVolPage0_t volume_pg0;
6760
	Mpi2RaidPhysDiskPage0_t pd_pg0;
E
Eric Moore 已提交
6761 6762 6763
	Mpi2ConfigReply_t mpi_reply;
	u16 ioc_status;
	u16 handle;
6764
	u8 phys_disk_num;
E
Eric Moore 已提交
6765

6766 6767 6768 6769 6770
	if (!ioc->ir_firmware)
		return;

	printk(MPT2SAS_INFO_FMT "search for raid volumes: start\n",
	    ioc->name);
E
Eric Moore 已提交
6771 6772

	if (list_empty(&ioc->raid_device_list))
6773
		goto out;
E
Eric Moore 已提交
6774 6775 6776 6777 6778 6779 6780 6781 6782

	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);
6783 6784 6785 6786 6787 6788 6789 6790 6791 6792 6793

		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
6794
	}
6795 6796

	/* refresh the pd_handles */
6797 6798 6799 6800 6801 6802 6803 6804 6805 6806 6807 6808 6809 6810
	if (!ioc->is_warpdrive) {
		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);
		}
6811
	}
6812 6813 6814
out:
	printk(MPT2SAS_INFO_FMT "search for responding raid volumes: "
	    "complete\n", ioc->name);
E
Eric Moore 已提交
6815 6816 6817 6818 6819 6820 6821 6822 6823 6824 6825 6826 6827 6828 6829 6830 6831 6832 6833
}

/**
 * _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;
6834
	int i;
E
Eric Moore 已提交
6835 6836 6837

	spin_lock_irqsave(&ioc->sas_node_lock, flags);
	list_for_each_entry(sas_expander, &ioc->sas_expander_list, list) {
6838 6839 6840 6841
		if (sas_expander->sas_address != sas_address)
			continue;
		sas_expander->responding = 1;
		if (sas_expander->handle == handle)
E
Eric Moore 已提交
6842
			goto out;
6843 6844 6845 6846 6847 6848 6849 6850
		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
6851 6852 6853 6854 6855 6856 6857 6858 6859 6860 6861 6862 6863 6864 6865 6866 6867 6868 6869 6870
	}
 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;
6871
	u64 sas_address;
E
Eric Moore 已提交
6872 6873
	u16 handle;

6874
	printk(MPT2SAS_INFO_FMT "search for expanders: start\n", ioc->name);
E
Eric Moore 已提交
6875 6876

	if (list_empty(&ioc->sas_expander_list))
6877
		goto out;
E
Eric Moore 已提交
6878 6879 6880 6881 6882 6883 6884 6885 6886 6887 6888 6889 6890 6891 6892 6893 6894 6895

	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);
	}

6896 6897
 out:
	printk(MPT2SAS_INFO_FMT "search for expanders: complete\n", ioc->name);
E
Eric Moore 已提交
6898 6899 6900
}

/**
6901
 * _scsih_remove_unresponding_sas_devices - removing unresponding devices
E
Eric Moore 已提交
6902 6903 6904 6905 6906
 * @ioc: per adapter object
 *
 * Return nothing.
 */
static void
6907
_scsih_remove_unresponding_sas_devices(struct MPT2SAS_ADAPTER *ioc)
E
Eric Moore 已提交
6908 6909
{
	struct _sas_device *sas_device, *sas_device_next;
6910
	struct _sas_node *sas_expander;
E
Eric Moore 已提交
6911 6912
	struct _raid_device *raid_device, *raid_device_next;

6913 6914
	printk(MPT2SAS_INFO_FMT "removing unresponding devices: start\n",
	    ioc->name);
E
Eric Moore 已提交
6915 6916 6917 6918 6919 6920 6921 6922 6923 6924 6925 6926 6927 6928 6929 6930

	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);
6931
		_scsih_remove_device(ioc, sas_device);
E
Eric Moore 已提交
6932 6933
	}

6934 6935 6936
	if (!ioc->ir_firmware)
		goto retry_expander_search;

E
Eric Moore 已提交
6937 6938 6939 6940 6941 6942 6943 6944 6945 6946 6947 6948 6949 6950 6951 6952
	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);
	}

6953 6954 6955
 retry_expander_search:
	sas_expander = NULL;
	list_for_each_entry(sas_expander, &ioc->sas_expander_list, list) {
E
Eric Moore 已提交
6956 6957 6958 6959
		if (sas_expander->responding) {
			sas_expander->responding = 0;
			continue;
		}
6960
		mpt2sas_expander_remove(ioc, sas_expander->sas_address);
6961 6962
		goto retry_expander_search;
	}
6963 6964 6965 6966 6967 6968 6969 6970 6971 6972 6973 6974 6975 6976 6977 6978 6979 6980 6981 6982 6983 6984 6985 6986 6987 6988
	printk(MPT2SAS_INFO_FMT "removing unresponding devices: complete\n",
	    ioc->name);
	/* unblock devices */
	_scsih_ublock_io_all_device(ioc);
}

static void
_scsih_refresh_expander_links(struct MPT2SAS_ADAPTER *ioc,
	struct _sas_node *sas_expander, u16 handle)
{
	Mpi2ExpanderPage1_t expander_pg1;
	Mpi2ConfigReply_t mpi_reply;
	int i;

	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__);
			return;
		}

		mpt2sas_transport_update_links(ioc, sas_expander->sas_address,
		    le16_to_cpu(expander_pg1.AttachedDevHandle), i,
		    expander_pg1.NegotiatedLinkRate >> 4);
	}
6989 6990
}

6991
/**
6992
 * _scsih_scan_for_devices_after_reset - scan for devices after host reset
6993 6994 6995 6996 6997
 * @ioc: per adapter object
 *
 * Return nothing.
 */
static void
6998
_scsih_scan_for_devices_after_reset(struct MPT2SAS_ADAPTER *ioc)
6999
{
7000 7001 7002 7003 7004 7005 7006 7007 7008 7009 7010 7011 7012 7013
	Mpi2ExpanderPage0_t expander_pg0;
	Mpi2SasDevicePage0_t sas_device_pg0;
	Mpi2RaidVolPage1_t volume_pg1;
	Mpi2RaidVolPage0_t volume_pg0;
	Mpi2RaidPhysDiskPage0_t pd_pg0;
	Mpi2EventIrConfigElement_t element;
	Mpi2ConfigReply_t mpi_reply;
	u8 phys_disk_num;
	u16 ioc_status;
	u16 handle, parent_handle;
	u64 sas_address;
	struct _sas_device *sas_device;
	struct _sas_node *expander_device;
	static struct _raid_device *raid_device;
7014

7015
	printk(MPT2SAS_INFO_FMT "scan devices: start\n", ioc->name);
7016

7017 7018 7019 7020 7021 7022 7023 7024 7025 7026 7027 7028 7029 7030 7031 7032 7033 7034 7035 7036 7037 7038 7039 7040 7041 7042 7043 7044 7045 7046 7047 7048 7049 7050 7051 7052 7053 7054 7055 7056 7057 7058 7059 7060 7061 7062 7063 7064 7065
	_scsih_sas_host_refresh(ioc);

	/* expanders */
	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);
		expander_device = mpt2sas_scsih_expander_find_by_sas_address(
		    ioc, le64_to_cpu(expander_pg0.SASAddress));
		if (expander_device)
			_scsih_refresh_expander_links(ioc, expander_device,
			    handle);
		else
			_scsih_expander_add(ioc, handle);
	}

	if (!ioc->ir_firmware)
		goto skip_to_sas;

	/* phys disk */
	phys_disk_num = 0xFF;
	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);
		sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
		if (sas_device)
			continue;
		if (mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply,
		    &sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_HANDLE,
		    handle) != 0)
			continue;
		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);
			set_bit(handle, ioc->pd_handles);
			_scsih_add_device(ioc, handle, 0, 1);
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 7108 7109 7110 7111 7112 7113 7114 7115 7116 7117 7118 7119
	}

	/* volumes */
	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);
		raid_device = _scsih_raid_device_find_by_wwid(ioc,
		    le64_to_cpu(volume_pg1.WWID));
		if (raid_device)
			continue;
		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) {
			memset(&element, 0, sizeof(Mpi2EventIrConfigElement_t));
			element.ReasonCode = MPI2_EVENT_IR_CHANGE_RC_ADDED;
			element.VolDevHandle = volume_pg1.DevHandle;
			_scsih_sas_volume_add(ioc, &element);
		}
	}

 skip_to_sas:

	/* sas devices */
	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);
		if (!(_scsih_is_end_device(
		    le32_to_cpu(sas_device_pg0.DeviceInfo))))
			continue;
		sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
		    le64_to_cpu(sas_device_pg0.SASAddress));
		if (sas_device)
			continue;
		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);
			_scsih_add_device(ioc, handle, 0, 0);
7120 7121
		}
	}
7122 7123

	printk(MPT2SAS_INFO_FMT "scan devices: complete\n", ioc->name);
7124 7125
}

7126

7127 7128 7129 7130 7131 7132 7133 7134 7135 7136 7137 7138 7139 7140 7141 7142 7143
/**
 * 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:
7144
		dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: "
7145 7146 7147
		    "MPT2_IOC_PRE_RESET\n", ioc->name, __func__));
		break;
	case MPT2_IOC_AFTER_RESET:
7148
		dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: "
7149
		    "MPT2_IOC_AFTER_RESET\n", ioc->name, __func__));
7150 7151 7152 7153 7154
		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);
		}
7155 7156 7157 7158 7159
		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);
		}
7160
		_scsih_fw_event_cleanup_queue(ioc);
7161 7162 7163
		_scsih_flush_running_cmds(ioc);
		break;
	case MPT2_IOC_DONE_RESET:
7164
		dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: "
7165
		    "MPT2_IOC_DONE_RESET\n", ioc->name, __func__));
7166
		_scsih_sas_host_refresh(ioc);
7167 7168 7169 7170
		_scsih_prep_device_scan(ioc);
		_scsih_search_responding_sas_devices(ioc);
		_scsih_search_responding_raid_devices(ioc);
		_scsih_search_responding_expanders(ioc);
7171 7172 7173 7174 7175
		if (!ioc->is_driver_loading) {
			_scsih_prep_device_scan(ioc);
			_scsih_search_responding_sas_devices(ioc);
			_scsih_search_responding_raid_devices(ioc);
			_scsih_search_responding_expanders(ioc);
7176
			_scsih_error_recovery_delete_devices(ioc);
7177
		}
7178
		break;
E
Eric Moore 已提交
7179 7180 7181 7182 7183 7184 7185 7186 7187 7188 7189 7190 7191 7192 7193
	}
}

/**
 * _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,
7194
	    struct fw_event_work, delayed_work.work);
E
Eric Moore 已提交
7195 7196 7197
	struct MPT2SAS_ADAPTER *ioc = fw_event->ioc;

	/* the queue is being flushed so ignore this event */
7198 7199
	if (ioc->remove_host || fw_event->cancel_pending_work ||
	    ioc->pci_error_recovery) {
E
Eric Moore 已提交
7200 7201 7202 7203
		_scsih_fw_event_free(ioc, fw_event);
		return;
	}

7204 7205 7206 7207
	switch (fw_event->event) {
	case MPT2SAS_REMOVE_UNRESPONDING_DEVICES:
		while (scsi_host_in_recovery(ioc->shost))
			ssleep(1);
7208
		_scsih_remove_unresponding_sas_devices(ioc);
7209 7210 7211
		_scsih_scan_for_devices_after_reset(ioc);
		break;
	case MPT2SAS_PORT_ENABLE_COMPLETE:
7212
		ioc->start_scan = 0;
7213 7214 7215 7216 7217 7218



		dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "port enable: complete "
		    "from worker thread\n", ioc->name));
		break;
7219 7220 7221
	case MPT2SAS_TURN_ON_FAULT_LED:
		_scsih_turn_on_fault_led(ioc, fw_event->device_handle);
		break;
E
Eric Moore 已提交
7222
	case MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST:
7223
		_scsih_sas_topology_change_event(ioc, fw_event);
E
Eric Moore 已提交
7224 7225
		break;
	case MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE:
7226 7227
		_scsih_sas_device_status_change_event(ioc,
		    fw_event);
E
Eric Moore 已提交
7228 7229
		break;
	case MPI2_EVENT_SAS_DISCOVERY:
7230 7231
		_scsih_sas_discovery_event(ioc,
		    fw_event);
E
Eric Moore 已提交
7232 7233
		break;
	case MPI2_EVENT_SAS_BROADCAST_PRIMITIVE:
7234 7235
		_scsih_sas_broadcast_primative_event(ioc,
		    fw_event);
E
Eric Moore 已提交
7236 7237 7238
		break;
	case MPI2_EVENT_SAS_ENCL_DEVICE_STATUS_CHANGE:
		_scsih_sas_enclosure_dev_status_change_event(ioc,
7239
		    fw_event);
E
Eric Moore 已提交
7240 7241
		break;
	case MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST:
7242
		_scsih_sas_ir_config_change_event(ioc, fw_event);
E
Eric Moore 已提交
7243 7244
		break;
	case MPI2_EVENT_IR_VOLUME:
7245
		_scsih_sas_ir_volume_event(ioc, fw_event);
E
Eric Moore 已提交
7246 7247
		break;
	case MPI2_EVENT_IR_PHYSICAL_DISK:
7248
		_scsih_sas_ir_physical_disk_event(ioc, fw_event);
E
Eric Moore 已提交
7249 7250
		break;
	case MPI2_EVENT_IR_OPERATION_STATUS:
7251
		_scsih_sas_ir_operation_status_event(ioc, fw_event);
E
Eric Moore 已提交
7252 7253 7254 7255 7256 7257 7258 7259
		break;
	}
	_scsih_fw_event_free(ioc, fw_event);
}

/**
 * mpt2sas_scsih_event_callback - firmware event handler (called at ISR time)
 * @ioc: per adapter object
7260
 * @msix_index: MSIX table index supplied by the OS
E
Eric Moore 已提交
7261 7262 7263 7264 7265 7266
 * @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.
 *
7267 7268
 * 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
7269
 */
7270
u8
7271 7272
mpt2sas_scsih_event_callback(struct MPT2SAS_ADAPTER *ioc, u8 msix_index,
	u32 reply)
E
Eric Moore 已提交
7273 7274 7275 7276
{
	struct fw_event_work *fw_event;
	Mpi2EventNotificationReply_t *mpi_reply;
	u16 event;
7277
	u16 sz;
E
Eric Moore 已提交
7278 7279

	/* events turned off due to host reset or driver unloading */
7280
	if (ioc->remove_host || ioc->pci_error_recovery)
7281
		return 1;
E
Eric Moore 已提交
7282

7283
	mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply);
E
Eric Moore 已提交
7284 7285 7286 7287 7288 7289 7290 7291 7292 7293 7294
	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 !=
7295
		    MPI2_EVENT_PRIMITIVE_ASYNCHRONOUS_EVENT)
7296
			return 1;
7297 7298 7299 7300 7301 7302

		if (ioc->broadcast_aen_busy) {
			ioc->broadcast_aen_pending++;
			return 1;
		} else
			ioc->broadcast_aen_busy = 1;
E
Eric Moore 已提交
7303 7304 7305 7306 7307 7308 7309 7310
		break;
	}

	case MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST:
		_scsih_check_topo_delete_events(ioc,
		    (Mpi2EventDataSasTopologyChangeList_t *)
		    mpi_reply->EventData);
		break;
7311 7312 7313 7314 7315 7316 7317 7318 7319 7320
	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;
7321 7322 7323 7324 7325 7326 7327 7328 7329 7330 7331 7332 7333 7334 7335 7336 7337 7338 7339 7340 7341 7342 7343 7344 7345 7346 7347 7348 7349 7350 7351 7352 7353 7354 7355 7356 7357 7358 7359 7360 7361 7362 7363 7364 7365 7366 7367
	case MPI2_EVENT_LOG_ENTRY_ADDED:
	{
		Mpi2EventDataLogEntryAdded_t *log_entry;
		u32 *log_code;

		if (!ioc->is_warpdrive)
			break;

		log_entry = (Mpi2EventDataLogEntryAdded_t *)
		    mpi_reply->EventData;
		log_code = (u32 *)log_entry->LogData;

		if (le16_to_cpu(log_entry->LogEntryQualifier)
		    != MPT2_WARPDRIVE_LOGENTRY)
			break;

		switch (le32_to_cpu(*log_code)) {
		case MPT2_WARPDRIVE_LC_SSDT:
			printk(MPT2SAS_WARN_FMT "WarpDrive Warning: "
			    "IO Throttling has occurred in the WarpDrive "
			    "subsystem. Check WarpDrive documentation for "
			    "additional details.\n", ioc->name);
			break;
		case MPT2_WARPDRIVE_LC_SSDLW:
			printk(MPT2SAS_WARN_FMT "WarpDrive Warning: "
			    "Program/Erase Cycles for the WarpDrive subsystem "
			    "in degraded range. Check WarpDrive documentation "
			    "for additional details.\n", ioc->name);
			break;
		case MPT2_WARPDRIVE_LC_SSDLF:
			printk(MPT2SAS_ERR_FMT "WarpDrive Fatal Error: "
			    "There are no Program/Erase Cycles for the "
			    "WarpDrive subsystem. The storage device will be "
			    "in read-only mode. Check WarpDrive documentation "
			    "for additional details.\n", ioc->name);
			break;
		case MPT2_WARPDRIVE_LC_BRMF:
			printk(MPT2SAS_ERR_FMT "WarpDrive Fatal Error: "
			    "The Backup Rail Monitor has failed on the "
			    "WarpDrive subsystem. Check WarpDrive "
			    "documentation for additional details.\n",
			    ioc->name);
			break;
		}

		break;
	}
E
Eric Moore 已提交
7368 7369 7370 7371 7372 7373 7374 7375
	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 */
7376
		return 1;
E
Eric Moore 已提交
7377 7378 7379 7380 7381 7382
	}

	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__);
7383
		return 1;
E
Eric Moore 已提交
7384
	}
7385 7386
	sz = le16_to_cpu(mpi_reply->EventDataLength) * 4;
	fw_event->event_data = kzalloc(sz, GFP_ATOMIC);
E
Eric Moore 已提交
7387 7388 7389 7390
	if (!fw_event->event_data) {
		printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
		    ioc->name, __FILE__, __LINE__, __func__);
		kfree(fw_event);
7391
		return 1;
E
Eric Moore 已提交
7392 7393 7394
	}

	memcpy(fw_event->event_data, mpi_reply->EventData,
7395
	    sz);
E
Eric Moore 已提交
7396
	fw_event->ioc = ioc;
7397 7398
	fw_event->VF_ID = mpi_reply->VF_ID;
	fw_event->VP_ID = mpi_reply->VP_ID;
E
Eric Moore 已提交
7399 7400
	fw_event->event = event;
	_scsih_fw_event_add(ioc, fw_event);
7401
	return 1;
E
Eric Moore 已提交
7402 7403 7404 7405 7406 7407 7408
}

/* shost template */
static struct scsi_host_template scsih_driver_template = {
	.module				= THIS_MODULE,
	.name				= "Fusion MPT SAS Host",
	.proc_name			= MPT2SAS_DRIVER_NAME,
7409 7410 7411 7412 7413 7414
	.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,
7415 7416
	.scan_finished			= _scsih_scan_finished,
	.scan_start			= _scsih_scan_start,
7417 7418 7419 7420 7421 7422 7423
	.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
7424 7425 7426 7427 7428 7429 7430 7431 7432 7433 7434 7435 7436 7437 7438 7439 7440 7441 7442 7443 7444 7445 7446 7447 7448
	.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)
{
7449
	struct _sas_port *mpt2sas_port, *next;
E
Eric Moore 已提交
7450 7451

	/* remove sibling ports attached to this expander */
7452
	list_for_each_entry_safe(mpt2sas_port, next,
E
Eric Moore 已提交
7453
	   &sas_expander->sas_port_list, port_list) {
7454 7455
		if (ioc->shost_recovery)
			return;
E
Eric Moore 已提交
7456
		if (mpt2sas_port->remote_identify.device_type ==
7457 7458 7459 7460 7461
		    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
7462
		    mpt2sas_port->remote_identify.device_type ==
7463 7464 7465
		    SAS_FANOUT_EXPANDER_DEVICE)
			mpt2sas_expander_remove(ioc,
			    mpt2sas_port->remote_identify.sas_address);
E
Eric Moore 已提交
7466 7467 7468
	}

	mpt2sas_transport_port_remove(ioc, sas_expander->sas_address,
7469
	    sas_expander->sas_address_parent);
E
Eric Moore 已提交
7470 7471 7472 7473 7474 7475 7476 7477 7478 7479

	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);
}

7480 7481 7482 7483 7484 7485 7486 7487 7488 7489 7490 7491 7492 7493 7494 7495 7496 7497 7498 7499 7500 7501 7502 7503 7504 7505 7506 7507 7508 7509 7510 7511 7512 7513 7514 7515 7516 7517 7518 7519 7520 7521 7522 7523 7524 7525 7526 7527
/**
 * _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;

7528 7529
	if (!ioc->hide_ir_msg)
		printk(MPT2SAS_INFO_FMT "IR shutdown (sending)\n", ioc->name);
7530 7531 7532 7533 7534 7535 7536 7537 7538 7539 7540 7541 7542
	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;

7543 7544 7545 7546 7547
		if (!ioc->hide_ir_msg)
			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));
7548 7549 7550 7551 7552 7553 7554 7555 7556 7557 7558 7559 7560 7561 7562 7563 7564 7565
	}

 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);
7566 7567 7568 7569 7570 7571 7572 7573 7574 7575 7576 7577
	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);
7578 7579 7580 7581 7582

	_scsih_ir_shutdown(ioc);
	mpt2sas_base_detach(ioc);
}

E
Eric Moore 已提交
7583
/**
7584
 * _scsih_remove - detach and remove add host
E
Eric Moore 已提交
7585 7586
 * @pdev: PCI device struct
 *
7587
 * Routine called when unloading the driver.
E
Eric Moore 已提交
7588 7589 7590
 * Return nothing.
 */
static void __devexit
7591
_scsih_remove(struct pci_dev *pdev)
E
Eric Moore 已提交
7592 7593 7594
{
	struct Scsi_Host *shost = pci_get_drvdata(pdev);
	struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
7595
	struct _sas_port *mpt2sas_port, *next_port;
7596 7597
	struct _raid_device *raid_device, *next;
	struct MPT2SAS_TARGET *sas_target_priv_data;
E
Eric Moore 已提交
7598 7599 7600 7601
	struct workqueue_struct	*wq;
	unsigned long flags;

	ioc->remove_host = 1;
7602
	_scsih_fw_event_cleanup_queue(ioc);
E
Eric Moore 已提交
7603 7604 7605 7606 7607 7608 7609 7610

	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);

7611
	/* release all the volumes */
7612
	_scsih_ir_shutdown(ioc);
7613 7614 7615 7616 7617 7618 7619 7620 7621 7622 7623 7624 7625 7626
	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
7627
	/* free ports attached to the sas_host */
7628
	list_for_each_entry_safe(mpt2sas_port, next_port,
E
Eric Moore 已提交
7629 7630
	   &ioc->sas_hba.sas_port_list, port_list) {
		if (mpt2sas_port->remote_identify.device_type ==
7631 7632 7633 7634 7635 7636 7637 7638
		    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
7639 7640 7641 7642 7643 7644 7645 7646 7647 7648 7649
			    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);
7650
	mpt2sas_base_detach(ioc);
E
Eric Moore 已提交
7651 7652 7653 7654 7655 7656 7657 7658 7659 7660 7661 7662 7663 7664 7665 7666 7667 7668 7669 7670
	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;
7671 7672
	u16 handle;
	u64 sas_address_parent;
E
Eric Moore 已提交
7673 7674 7675 7676
	u64 sas_address;
	unsigned long flags;
	int rc;

7677 7678 7679 7680
	 /* no Bios, return immediately */
	if (!ioc->bios_pg3.BiosVersion)
		return;

E
Eric Moore 已提交
7681
	device = NULL;
7682
	is_raid = 0;
E
Eric Moore 已提交
7683 7684 7685 7686 7687 7688 7689 7690 7691 7692 7693 7694 7695 7696 7697 7698 7699 7700 7701 7702 7703 7704 7705
	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;
7706
		sas_address_parent = sas_device->sas_address_parent;
E
Eric Moore 已提交
7707 7708 7709 7710
		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);
7711 7712 7713

		if (ioc->hide_drives)
			return;
E
Eric Moore 已提交
7714
		if (!mpt2sas_transport_port_add(ioc, sas_device->handle,
7715
		    sas_device->sas_address_parent)) {
E
Eric Moore 已提交
7716 7717
			_scsih_sas_device_remove(ioc, sas_device);
		} else if (!sas_device->starget) {
7718 7719 7720
			if (!ioc->is_driver_loading)
				mpt2sas_transport_port_remove(ioc, sas_address,
					sas_address_parent);
E
Eric Moore 已提交
7721 7722 7723 7724 7725 7726 7727 7728 7729 7730 7731 7732 7733 7734 7735 7736 7737 7738 7739 7740 7741 7742 7743 7744 7745 7746 7747 7748 7749
			_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);
	}
}

/**
7750
 * _scsih_probe_sas - reporting sas devices to sas transport
E
Eric Moore 已提交
7751 7752 7753 7754 7755 7756 7757 7758 7759 7760 7761 7762 7763 7764
 * @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) {

7765 7766 7767
		if (ioc->hide_drives)
			continue;

7768 7769
		if (!mpt2sas_transport_port_add(ioc, sas_device->handle,
		    sas_device->sas_address_parent)) {
7770 7771 7772
			list_del(&sas_device->list);
			kfree(sas_device);
			continue;
E
Eric Moore 已提交
7773
		} else if (!sas_device->starget) {
7774 7775 7776 7777
			if (!ioc->is_driver_loading)
				mpt2sas_transport_port_remove(ioc,
					sas_device->sas_address,
					sas_device->sas_address_parent);
7778 7779 7780 7781
			list_del(&sas_device->list);
			kfree(sas_device);
			continue;

E
Eric Moore 已提交
7782
		}
7783 7784 7785
		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);
E
Eric Moore 已提交
7786 7787 7788 7789 7790 7791 7792 7793 7794 7795 7796 7797
	}
}

/**
 * _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)
{
7798
	u16 volume_mapping_flags;
E
Eric Moore 已提交
7799 7800 7801 7802 7803 7804 7805

	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) {
7806 7807 7808 7809 7810
		volume_mapping_flags =
		    le16_to_cpu(ioc->ioc_pg8.IRVolumeMappingFlags) &
		    MPI2_IOCPAGE8_IRFLAGS_MASK_VOLUME_MAPPING_MODE;
		if (volume_mapping_flags ==
		    MPI2_IOCPAGE8_IRFLAGS_LOW_VOLUME_MAPPING) {
E
Eric Moore 已提交
7811
			_scsih_probe_raid(ioc);
7812
			_scsih_probe_sas(ioc);
E
Eric Moore 已提交
7813 7814
		} else {
			_scsih_probe_sas(ioc);
7815
			_scsih_probe_raid(ioc);
E
Eric Moore 已提交
7816 7817 7818 7819 7820
		}
	} else
		_scsih_probe_sas(ioc);
}

7821 7822 7823 7824 7825 7826 7827 7828 7829 7830 7831 7832 7833 7834 7835 7836 7837 7838 7839 7840 7841 7842 7843 7844 7845 7846 7847 7848 7849 7850 7851 7852 7853 7854 7855 7856 7857 7858 7859 7860 7861 7862 7863 7864 7865 7866 7867 7868 7869 7870 7871 7872 7873 7874 7875 7876 7877 7878 7879 7880 7881 7882 7883 7884 7885 7886 7887 7888 7889 7890 7891 7892

/**
 * _scsih_scan_start - scsi lld callback for .scan_start
 * @shost: SCSI host pointer
 *
 * The shost has the ability to discover targets on its own instead
 * of scanning the entire bus.  In our implemention, we will kick off
 * firmware discovery.
 */
static void
_scsih_scan_start(struct Scsi_Host *shost)
{
	struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
	int rc;

	if (diag_buffer_enable != -1 && diag_buffer_enable != 0)
		mpt2sas_enable_diag_buffer(ioc, diag_buffer_enable);

	ioc->start_scan = 1;
	rc = mpt2sas_port_enable(ioc);

	if (rc != 0)
		printk(MPT2SAS_INFO_FMT "port enable: FAILED\n", ioc->name);
}

/**
 * _scsih_scan_finished - scsi lld callback for .scan_finished
 * @shost: SCSI host pointer
 * @time: elapsed time of the scan in jiffies
 *
 * This function will be called periodically until it returns 1 with the
 * scsi_host and the elapsed time of the scan in jiffies. In our implemention,
 * we wait for firmware discovery to complete, then return 1.
 */
static int
_scsih_scan_finished(struct Scsi_Host *shost, unsigned long time)
{
	struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);

	if (time >= (300 * HZ)) {
		ioc->base_cmds.status = MPT2_CMD_NOT_USED;
		printk(MPT2SAS_INFO_FMT "port enable: FAILED with timeout "
		    "(timeout=300s)\n", ioc->name);
		ioc->is_driver_loading = 0;
		return 1;
	}

	if (ioc->start_scan)
		return 0;

	if (ioc->start_scan_failed) {
		printk(MPT2SAS_INFO_FMT "port enable: FAILED with "
		    "(ioc_status=0x%08x)\n", ioc->name, ioc->start_scan_failed);
		ioc->is_driver_loading = 0;
		ioc->wait_for_discovery_to_complete = 0;
		ioc->remove_host = 1;
		return 1;
	}

	printk(MPT2SAS_INFO_FMT "port enable: SUCCESS\n", ioc->name);
	ioc->base_cmds.status = MPT2_CMD_NOT_USED;

	if (ioc->wait_for_discovery_to_complete) {
		ioc->wait_for_discovery_to_complete = 0;
		_scsih_probe_devices(ioc);
	}
	mpt2sas_base_start_watchdog(ioc);
	ioc->is_driver_loading = 0;
	return 1;
}


E
Eric Moore 已提交
7893
/**
7894
 * _scsih_probe - attach and add scsi host
E
Eric Moore 已提交
7895 7896 7897 7898 7899 7900
 * @pdev: PCI device struct
 * @id: pci device id
 *
 * Returns 0 success, anything else error.
 */
static int
7901
_scsih_probe(struct pci_dev *pdev, const struct pci_device_id *id)
E
Eric Moore 已提交
7902 7903 7904 7905 7906 7907 7908 7909 7910 7911 7912 7913 7914
{
	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);
7915
	list_add_tail(&ioc->list, &mpt2sas_ioc_list);
E
Eric Moore 已提交
7916 7917 7918 7919
	ioc->shost = shost;
	ioc->id = mpt_ids++;
	sprintf(ioc->name, "%s%d", MPT2SAS_DRIVER_NAME, ioc->id);
	ioc->pdev = pdev;
7920 7921 7922 7923 7924
	if (id->device == MPI2_MFGPAGE_DEVID_SSS6200) {
		ioc->is_warpdrive = 1;
		ioc->hide_ir_msg = 1;
	} else
		ioc->mfg_pg10_hide_flag = MFG_PAGE10_EXPOSE_ALL_DISKS;
E
Eric Moore 已提交
7925 7926 7927 7928
	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;
7929
	ioc->port_enable_cb_idx = port_enable_cb_idx;
E
Eric Moore 已提交
7930
	ioc->transport_cb_idx = transport_cb_idx;
7931
	ioc->scsih_cb_idx = scsih_cb_idx;
E
Eric Moore 已提交
7932
	ioc->config_cb_idx = config_cb_idx;
7933
	ioc->tm_tr_cb_idx = tm_tr_cb_idx;
7934
	ioc->tm_tr_volume_cb_idx = tm_tr_volume_cb_idx;
7935
	ioc->tm_sas_control_cb_idx = tm_sas_control_cb_idx;
E
Eric Moore 已提交
7936
	ioc->logging_level = logging_level;
7937
	ioc->schedule_dead_ioc_flush_running_cmds = &_scsih_flush_running_cmds;
E
Eric Moore 已提交
7938
	/* misc semaphores and spin locks */
7939
	mutex_init(&ioc->reset_in_progress_mutex);
E
Eric Moore 已提交
7940 7941 7942 7943 7944 7945 7946 7947 7948 7949 7950 7951 7952
	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);
7953
	INIT_LIST_HEAD(&ioc->delayed_tr_list);
7954
	INIT_LIST_HEAD(&ioc->delayed_tr_volume_list);
E
Eric Moore 已提交
7955 7956

	/* init shost parameters */
7957
	shost->max_cmd_len = 32;
E
Eric Moore 已提交
7958 7959 7960 7961
	shost->max_lun = max_lun;
	shost->transportt = mpt2sas_transport_template;
	shost->unique_id = ioc->id;

7962 7963 7964 7965 7966 7967 7968 7969 7970 7971 7972 7973 7974 7975 7976 7977 7978 7979 7980
	if (max_sectors != 0xFFFF) {
		if (max_sectors < 64) {
			shost->max_sectors = 64;
			printk(MPT2SAS_WARN_FMT "Invalid value %d passed "
			    "for max_sectors, range is 64 to 8192. Assigning "
			    "value of 64.\n", ioc->name, max_sectors);
		} else if (max_sectors > 8192) {
			shost->max_sectors = 8192;
			printk(MPT2SAS_WARN_FMT "Invalid value %d passed "
			    "for max_sectors, range is 64 to 8192. Assigning "
			    "default value of 8192.\n", ioc->name,
			    max_sectors);
		} else {
			shost->max_sectors = max_sectors & 0xFFFE;
			printk(MPT2SAS_INFO_FMT "The max_sectors value is "
			    "set to %d\n", ioc->name, shost->max_sectors);
		}
	}

E
Eric Moore 已提交
7981 7982 7983 7984 7985 7986 7987
	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
7988
	scsi_host_set_prot(shost, SHOST_DIF_TYPE1_PROTECTION
7989
	    | SHOST_DIF_TYPE2_PROTECTION | SHOST_DIF_TYPE3_PROTECTION);
7990
	scsi_host_set_guard(shost, SHOST_DIX_GUARD_CRC);
E
Eric Moore 已提交
7991

E
Eric Moore 已提交
7992 7993 7994 7995 7996 7997 7998 7999 8000 8001 8002
	/* 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;
	}

8003
	ioc->is_driver_loading = 1;
E
Eric Moore 已提交
8004 8005 8006 8007 8008 8009
	if ((mpt2sas_base_attach(ioc))) {
		printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
		    ioc->name, __FILE__, __LINE__, __func__);
		goto out_attach_fail;
	}

8010
	scsi_scan_host(shost);
8011 8012 8013 8014 8015 8016 8017 8018 8019 8020 8021 8022 8023 8024
	if (ioc->is_warpdrive) {
		if (ioc->mfg_pg10_hide_flag ==  MFG_PAGE10_EXPOSE_ALL_DISKS)
			ioc->hide_drives = 0;
		else if (ioc->mfg_pg10_hide_flag ==  MFG_PAGE10_HIDE_ALL_DISKS)
			ioc->hide_drives = 1;
		else {
			if (_scsih_get_num_volumes(ioc))
				ioc->hide_drives = 1;
			else
				ioc->hide_drives = 0;
		}
	} else
		ioc->hide_drives = 0;

E
Eric Moore 已提交
8025 8026 8027 8028 8029 8030 8031 8032
	_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);
8033
	scsi_host_put(shost);
E
Eric Moore 已提交
8034 8035 8036 8037 8038 8039
 out_add_shost_fail:
	return -ENODEV;
}

#ifdef CONFIG_PM
/**
8040
 * _scsih_suspend - power management suspend main entry point
E
Eric Moore 已提交
8041 8042 8043 8044 8045 8046
 * @pdev: PCI device struct
 * @state: PM state change to (usually PCI_D3)
 *
 * Returns 0 success, anything else error.
 */
static int
8047
_scsih_suspend(struct pci_dev *pdev, pm_message_t state)
E
Eric Moore 已提交
8048 8049 8050
{
	struct Scsi_Host *shost = pci_get_drvdata(pdev);
	struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
8051
	pci_power_t device_state;
E
Eric Moore 已提交
8052

8053
	mpt2sas_base_stop_watchdog(ioc);
E
Eric Moore 已提交
8054 8055 8056 8057 8058 8059 8060 8061 8062 8063 8064 8065 8066 8067
	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;
}

/**
8068
 * _scsih_resume - power management resume main entry point
E
Eric Moore 已提交
8069 8070 8071 8072 8073
 * @pdev: PCI device struct
 *
 * Returns 0 success, anything else error.
 */
static int
8074
_scsih_resume(struct pci_dev *pdev)
E
Eric Moore 已提交
8075 8076 8077
{
	struct Scsi_Host *shost = pci_get_drvdata(pdev);
	struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
8078
	pci_power_t device_state = pdev->current_state;
E
Eric Moore 已提交
8079 8080 8081 8082 8083 8084 8085 8086 8087 8088 8089 8090 8091 8092 8093 8094
	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);
8095
	mpt2sas_base_start_watchdog(ioc);
E
Eric Moore 已提交
8096 8097 8098 8099
	return 0;
}
#endif /* CONFIG_PM */

8100 8101 8102 8103 8104 8105 8106 8107 8108 8109 8110 8111 8112 8113 8114 8115 8116 8117 8118 8119 8120 8121 8122
/**
 * _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:
8123 8124
		/* Fatal error, prepare for slot reset */
		ioc->pci_error_recovery = 1;
8125 8126 8127 8128 8129
		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:
8130 8131 8132 8133
		/* Permanent error, prepare for device removal */
		ioc->pci_error_recovery = 1;
		mpt2sas_base_stop_watchdog(ioc);
		_scsih_flush_running_cmds(ioc);
8134 8135 8136 8137 8138 8139 8140 8141 8142 8143 8144 8145 8146 8147 8148 8149 8150 8151 8152 8153 8154 8155 8156
		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);

8157
	ioc->pci_error_recovery = 0;
8158
	ioc->pdev = pdev;
8159
	pci_restore_state(pdev);
8160 8161 8162 8163 8164 8165 8166 8167 8168 8169 8170 8171 8172 8173 8174 8175 8176 8177 8178 8179 8180 8181 8182 8183 8184 8185 8186 8187 8188 8189 8190 8191 8192 8193 8194 8195 8196 8197 8198 8199 8200 8201 8202 8203 8204 8205 8206 8207 8208 8209 8210 8211 8212 8213 8214 8215 8216 8217 8218 8219 8220 8221 8222
	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
8223 8224 8225 8226

static struct pci_driver scsih_driver = {
	.name		= MPT2SAS_DRIVER_NAME,
	.id_table	= scsih_pci_table,
8227 8228
	.probe		= _scsih_probe,
	.remove		= __devexit_p(_scsih_remove),
8229
	.shutdown	= _scsih_shutdown,
8230
	.err_handler	= &_scsih_err_handler,
E
Eric Moore 已提交
8231
#ifdef CONFIG_PM
8232 8233
	.suspend	= _scsih_suspend,
	.resume		= _scsih_resume,
E
Eric Moore 已提交
8234 8235 8236
#endif
};

8237 8238 8239 8240 8241 8242 8243
/* 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
8244 8245

/**
8246
 * _scsih_init - main entry point for this driver.
E
Eric Moore 已提交
8247 8248 8249 8250
 *
 * Returns 0 success, anything else error.
 */
static int __init
8251
_scsih_init(void)
E
Eric Moore 已提交
8252 8253 8254 8255 8256 8257 8258 8259 8260 8261 8262
{
	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;
8263 8264 8265 8266 8267 8268
	/* 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
8269 8270 8271 8272

	mpt2sas_base_initialize_callback_handler();

	 /* queuecommand callback hander */
8273
	scsi_io_cb_idx = mpt2sas_base_register_callback_handler(_scsih_io_done);
E
Eric Moore 已提交
8274

8275
	/* task management callback handler */
8276
	tm_cb_idx = mpt2sas_base_register_callback_handler(_scsih_tm_done);
E
Eric Moore 已提交
8277 8278 8279

	/* base internal commands callback handler */
	base_cb_idx = mpt2sas_base_register_callback_handler(mpt2sas_base_done);
8280 8281
	port_enable_cb_idx = mpt2sas_base_register_callback_handler(
		mpt2sas_port_enable_done);
E
Eric Moore 已提交
8282 8283 8284 8285 8286

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

8287 8288 8289
	/* scsih internal commands callback handler */
	scsih_cb_idx = mpt2sas_base_register_callback_handler(_scsih_done);

E
Eric Moore 已提交
8290 8291 8292 8293 8294 8295 8296
	/* 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);

8297 8298
	tm_tr_cb_idx = mpt2sas_base_register_callback_handler(
	    _scsih_tm_tr_complete);
8299 8300 8301 8302

	tm_tr_volume_cb_idx = mpt2sas_base_register_callback_handler(
	    _scsih_tm_volume_tr_complete);

8303 8304 8305
	tm_sas_control_cb_idx = mpt2sas_base_register_callback_handler(
	    _scsih_sas_control_complete);

E
Eric Moore 已提交
8306 8307 8308
	mpt2sas_ctl_init();

	error = pci_register_driver(&scsih_driver);
8309 8310 8311
	if (error) {
		/* raid transport support */
		raid_class_release(mpt2sas_raid_template);
E
Eric Moore 已提交
8312
		sas_release_transport(mpt2sas_transport_template);
8313
	}
E
Eric Moore 已提交
8314 8315 8316 8317 8318

	return error;
}

/**
8319
 * _scsih_exit - exit point for this driver (when it is a module).
E
Eric Moore 已提交
8320 8321 8322 8323
 *
 * Returns 0 success, anything else error.
 */
static void __exit
8324
_scsih_exit(void)
E
Eric Moore 已提交
8325 8326 8327 8328 8329 8330
{
	printk(KERN_INFO "mpt2sas version %s unloading\n",
	    MPT2SAS_DRIVER_VERSION);

	pci_unregister_driver(&scsih_driver);

8331 8332
	mpt2sas_ctl_exit();

E
Eric Moore 已提交
8333 8334 8335
	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);
8336
	mpt2sas_base_release_callback_handler(port_enable_cb_idx);
E
Eric Moore 已提交
8337
	mpt2sas_base_release_callback_handler(transport_cb_idx);
8338
	mpt2sas_base_release_callback_handler(scsih_cb_idx);
E
Eric Moore 已提交
8339 8340 8341
	mpt2sas_base_release_callback_handler(config_cb_idx);
	mpt2sas_base_release_callback_handler(ctl_cb_idx);

8342
	mpt2sas_base_release_callback_handler(tm_tr_cb_idx);
8343
	mpt2sas_base_release_callback_handler(tm_tr_volume_cb_idx);
8344 8345
	mpt2sas_base_release_callback_handler(tm_sas_control_cb_idx);

8346 8347 8348 8349
	/* raid transport support */
	raid_class_release(mpt2sas_raid_template);
	sas_release_transport(mpt2sas_transport_template);

E
Eric Moore 已提交
8350 8351
}

8352 8353
module_init(_scsih_init);
module_exit(_scsih_exit);