2 * This file is provided under a dual BSD/GPLv2 license. When using or
3 * redistributing this file, you may do so under either license.
7 * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of version 2 of the GNU General Public License as
11 * published by the Free Software Foundation.
13 * This program is distributed in the hope that it will be useful, but
14 * WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
21 * The full GNU General Public License is included in this distribution
22 * in the file called LICENSE.GPL.
26 * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
27 * All rights reserved.
29 * Redistribution and use in source and binary forms, with or without
30 * modification, are permitted provided that the following conditions
33 * * Redistributions of source code must retain the above copyright
34 * notice, this list of conditions and the following disclaimer.
35 * * Redistributions in binary form must reproduce the above copyright
36 * notice, this list of conditions and the following disclaimer in
37 * the documentation and/or other materials provided with the
39 * * Neither the name of Intel Corporation nor the names of its
40 * contributors may be used to endorse or promote products derived
41 * from this software without specific prior written permission.
43 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
44 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
45 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
46 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
47 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
48 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
49 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
50 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
51 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
52 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
53 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
56 #include <linux/kernel.h>
57 #include <linux/init.h>
58 #include <linux/module.h>
59 #include <linux/firmware.h>
60 #include <linux/efi.h>
61 #include <asm/string.h>
62 #include <scsi/scsi_host.h>
66 #include "probe_roms.h"
71 #define DRV_VERSION __stringify(MAJ) "." __stringify(MIN) "." \
74 MODULE_VERSION(DRV_VERSION
);
76 static struct scsi_transport_template
*isci_transport_template
;
78 static const struct pci_device_id isci_id_table
[] = {
79 { PCI_VDEVICE(INTEL
, 0x1D61),},
80 { PCI_VDEVICE(INTEL
, 0x1D63),},
81 { PCI_VDEVICE(INTEL
, 0x1D65),},
82 { PCI_VDEVICE(INTEL
, 0x1D67),},
83 { PCI_VDEVICE(INTEL
, 0x1D69),},
84 { PCI_VDEVICE(INTEL
, 0x1D6B),},
85 { PCI_VDEVICE(INTEL
, 0x1D60),},
86 { PCI_VDEVICE(INTEL
, 0x1D62),},
87 { PCI_VDEVICE(INTEL
, 0x1D64),},
88 { PCI_VDEVICE(INTEL
, 0x1D66),},
89 { PCI_VDEVICE(INTEL
, 0x1D68),},
90 { PCI_VDEVICE(INTEL
, 0x1D6A),},
94 MODULE_DEVICE_TABLE(pci
, isci_id_table
);
96 /* linux isci specific settings */
98 unsigned char no_outbound_task_to
= 2;
99 module_param(no_outbound_task_to
, byte
, 0);
100 MODULE_PARM_DESC(no_outbound_task_to
, "No Outbound Task Timeout (1us incr)");
102 u16 ssp_max_occ_to
= 20;
103 module_param(ssp_max_occ_to
, ushort
, 0);
104 MODULE_PARM_DESC(ssp_max_occ_to
, "SSP Max occupancy timeout (100us incr)");
106 u16 stp_max_occ_to
= 5;
107 module_param(stp_max_occ_to
, ushort
, 0);
108 MODULE_PARM_DESC(stp_max_occ_to
, "STP Max occupancy timeout (100us incr)");
110 u16 ssp_inactive_to
= 5;
111 module_param(ssp_inactive_to
, ushort
, 0);
112 MODULE_PARM_DESC(ssp_inactive_to
, "SSP inactivity timeout (100us incr)");
114 u16 stp_inactive_to
= 5;
115 module_param(stp_inactive_to
, ushort
, 0);
116 MODULE_PARM_DESC(stp_inactive_to
, "STP inactivity timeout (100us incr)");
118 unsigned char phy_gen
= SCIC_SDS_PARM_GEN2_SPEED
;
119 module_param(phy_gen
, byte
, 0);
120 MODULE_PARM_DESC(phy_gen
, "PHY generation (1: 1.5Gbps 2: 3.0Gbps 3: 6.0Gbps)");
122 unsigned char max_concurr_spinup
;
123 module_param(max_concurr_spinup
, byte
, 0);
124 MODULE_PARM_DESC(max_concurr_spinup
, "Max concurrent device spinup");
126 uint cable_selection_override
= CABLE_OVERRIDE_DISABLED
;
127 module_param(cable_selection_override
, uint
, 0);
129 MODULE_PARM_DESC(cable_selection_override
,
130 "This field indicates length of the SAS/SATA cable between "
131 "host and device. If any bits > 15 are set (default) "
132 "indicates \"use platform defaults\"");
134 static ssize_t
isci_show_id(struct device
*dev
, struct device_attribute
*attr
, char *buf
)
136 struct Scsi_Host
*shost
= container_of(dev
, typeof(*shost
), shost_dev
);
137 struct sas_ha_struct
*sas_ha
= SHOST_TO_SAS_HA(shost
);
138 struct isci_host
*ihost
= container_of(sas_ha
, typeof(*ihost
), sas_ha
);
140 return snprintf(buf
, PAGE_SIZE
, "%d\n", ihost
->id
);
143 static DEVICE_ATTR(isci_id
, S_IRUGO
, isci_show_id
, NULL
);
145 struct device_attribute
*isci_host_attrs
[] = {
150 static struct scsi_host_template isci_sht
= {
152 .module
= THIS_MODULE
,
154 .proc_name
= DRV_NAME
,
155 .queuecommand
= sas_queuecommand
,
156 .target_alloc
= sas_target_alloc
,
157 .slave_configure
= sas_slave_configure
,
158 .scan_finished
= isci_host_scan_finished
,
159 .scan_start
= isci_host_start
,
160 .change_queue_depth
= sas_change_queue_depth
,
161 .bios_param
= sas_bios_param
,
162 .can_queue
= ISCI_CAN_QUEUE_VAL
,
164 .sg_tablesize
= SG_ALL
,
165 .max_sectors
= SCSI_DEFAULT_MAX_SECTORS
,
166 .use_clustering
= ENABLE_CLUSTERING
,
167 .eh_abort_handler
= sas_eh_abort_handler
,
168 .eh_device_reset_handler
= sas_eh_device_reset_handler
,
169 .eh_bus_reset_handler
= sas_eh_bus_reset_handler
,
170 .target_destroy
= sas_target_destroy
,
172 .shost_attrs
= isci_host_attrs
,
173 .track_queue_depth
= 1,
176 static struct sas_domain_function_template isci_transport_ops
= {
178 /* The class calls these to notify the LLDD of an event. */
179 .lldd_port_formed
= isci_port_formed
,
180 .lldd_port_deformed
= isci_port_deformed
,
182 /* The class calls these when a device is found or gone. */
183 .lldd_dev_found
= isci_remote_device_found
,
184 .lldd_dev_gone
= isci_remote_device_gone
,
186 .lldd_execute_task
= isci_task_execute_task
,
187 /* Task Management Functions. Must be called from process context. */
188 .lldd_abort_task
= isci_task_abort_task
,
189 .lldd_abort_task_set
= isci_task_abort_task_set
,
190 .lldd_clear_aca
= isci_task_clear_aca
,
191 .lldd_clear_task_set
= isci_task_clear_task_set
,
192 .lldd_I_T_nexus_reset
= isci_task_I_T_nexus_reset
,
193 .lldd_lu_reset
= isci_task_lu_reset
,
194 .lldd_query_task
= isci_task_query_task
,
196 /* ata recovery called from ata-eh */
197 .lldd_ata_check_ready
= isci_ata_check_ready
,
199 /* Port and Adapter management */
200 .lldd_clear_nexus_port
= isci_task_clear_nexus_port
,
201 .lldd_clear_nexus_ha
= isci_task_clear_nexus_ha
,
204 .lldd_control_phy
= isci_phy_control
,
207 .lldd_write_gpio
= isci_gpio_write
,
211 /******************************************************************************
212 * P R O T E C T E D M E T H O D S
213 ******************************************************************************/
218 * isci_register_sas_ha() - This method initializes various lldd
219 * specific members of the sas_ha struct and calls the libsas
220 * sas_register_ha() function.
221 * @isci_host: This parameter specifies the lldd specific wrapper for the
222 * libsas sas_ha struct.
224 * This method returns an error code indicating success or failure. The user
225 * should check for possible memory allocation error return otherwise, a zero
228 static int isci_register_sas_ha(struct isci_host
*isci_host
)
231 struct sas_ha_struct
*sas_ha
= &(isci_host
->sas_ha
);
232 struct asd_sas_phy
**sas_phys
;
233 struct asd_sas_port
**sas_ports
;
235 sas_phys
= devm_kzalloc(&isci_host
->pdev
->dev
,
236 SCI_MAX_PHYS
* sizeof(void *),
241 sas_ports
= devm_kzalloc(&isci_host
->pdev
->dev
,
242 SCI_MAX_PORTS
* sizeof(void *),
247 sas_ha
->sas_ha_name
= DRV_NAME
;
248 sas_ha
->lldd_module
= THIS_MODULE
;
249 sas_ha
->sas_addr
= &isci_host
->phys
[0].sas_addr
[0];
251 for (i
= 0; i
< SCI_MAX_PHYS
; i
++) {
252 sas_phys
[i
] = &isci_host
->phys
[i
].sas_phy
;
253 sas_ports
[i
] = &isci_host
->sas_ports
[i
];
256 sas_ha
->sas_phy
= sas_phys
;
257 sas_ha
->sas_port
= sas_ports
;
258 sas_ha
->num_phys
= SCI_MAX_PHYS
;
260 sas_ha
->strict_wide_ports
= 1;
262 sas_register_ha(sas_ha
);
267 static void isci_unregister(struct isci_host
*isci_host
)
269 struct Scsi_Host
*shost
;
274 shost
= to_shost(isci_host
);
275 scsi_remove_host(shost
);
276 sas_unregister_ha(&isci_host
->sas_ha
);
278 sas_remove_host(shost
);
279 scsi_host_put(shost
);
282 static int isci_pci_init(struct pci_dev
*pdev
)
284 int err
, bar_num
, bar_mask
= 0;
285 void __iomem
* const *iomap
;
287 err
= pcim_enable_device(pdev
);
290 "failed enable PCI device %s!\n",
295 for (bar_num
= 0; bar_num
< SCI_PCI_BAR_COUNT
; bar_num
++)
296 bar_mask
|= 1 << (bar_num
* 2);
298 err
= pcim_iomap_regions(pdev
, bar_mask
, DRV_NAME
);
302 iomap
= pcim_iomap_table(pdev
);
306 pci_set_master(pdev
);
308 err
= pci_set_dma_mask(pdev
, DMA_BIT_MASK(64));
310 err
= pci_set_dma_mask(pdev
, DMA_BIT_MASK(32));
315 err
= pci_set_consistent_dma_mask(pdev
, DMA_BIT_MASK(64));
317 err
= pci_set_consistent_dma_mask(pdev
, DMA_BIT_MASK(32));
325 static int num_controllers(struct pci_dev
*pdev
)
327 /* bar size alone can tell us if we are running with a dual controller
328 * part, no need to trust revision ids that might be under broken firmware
331 resource_size_t scu_bar_size
= pci_resource_len(pdev
, SCI_SCU_BAR
*2);
332 resource_size_t smu_bar_size
= pci_resource_len(pdev
, SCI_SMU_BAR
*2);
334 if (scu_bar_size
>= SCI_SCU_BAR_SIZE
*SCI_MAX_CONTROLLERS
&&
335 smu_bar_size
>= SCI_SMU_BAR_SIZE
*SCI_MAX_CONTROLLERS
)
336 return SCI_MAX_CONTROLLERS
;
341 static int isci_setup_interrupts(struct pci_dev
*pdev
)
343 int err
, i
, num_msix
;
344 struct isci_host
*ihost
;
345 struct isci_pci_info
*pci_info
= to_pci_info(pdev
);
348 * Determine the number of vectors associated with this
351 num_msix
= num_controllers(pdev
) * SCI_NUM_MSI_X_INT
;
353 for (i
= 0; i
< num_msix
; i
++)
354 pci_info
->msix_entries
[i
].entry
= i
;
356 err
= pci_enable_msix_exact(pdev
, pci_info
->msix_entries
, num_msix
);
360 for (i
= 0; i
< num_msix
; i
++) {
361 int id
= i
/ SCI_NUM_MSI_X_INT
;
362 struct msix_entry
*msix
= &pci_info
->msix_entries
[i
];
365 ihost
= pci_info
->hosts
[id
];
366 /* odd numbered vectors are error interrupts */
368 isr
= isci_error_isr
;
372 err
= devm_request_irq(&pdev
->dev
, msix
->vector
, isr
, 0,
373 DRV_NAME
"-msix", ihost
);
377 dev_info(&pdev
->dev
, "msix setup failed falling back to intx\n");
379 id
= i
/ SCI_NUM_MSI_X_INT
;
380 ihost
= pci_info
->hosts
[id
];
381 msix
= &pci_info
->msix_entries
[i
];
382 devm_free_irq(&pdev
->dev
, msix
->vector
, ihost
);
384 pci_disable_msix(pdev
);
390 for_each_isci_host(i
, ihost
, pdev
) {
391 err
= devm_request_irq(&pdev
->dev
, pdev
->irq
, isci_intx_isr
,
392 IRQF_SHARED
, DRV_NAME
"-intx", ihost
);
399 static void isci_user_parameters_get(struct sci_user_parameters
*u
)
403 for (i
= 0; i
< SCI_MAX_PHYS
; i
++) {
404 struct sci_phy_user_params
*u_phy
= &u
->phys
[i
];
406 u_phy
->max_speed_generation
= phy_gen
;
408 /* we are not exporting these for now */
409 u_phy
->align_insertion_frequency
= 0x7f;
410 u_phy
->in_connection_align_insertion_frequency
= 0xff;
411 u_phy
->notify_enable_spin_up_insertion_frequency
= 0x33;
414 u
->stp_inactivity_timeout
= stp_inactive_to
;
415 u
->ssp_inactivity_timeout
= ssp_inactive_to
;
416 u
->stp_max_occupancy_timeout
= stp_max_occ_to
;
417 u
->ssp_max_occupancy_timeout
= ssp_max_occ_to
;
418 u
->no_outbound_task_timeout
= no_outbound_task_to
;
419 u
->max_concurr_spinup
= max_concurr_spinup
;
422 static enum sci_status
sci_user_parameters_set(struct isci_host
*ihost
,
423 struct sci_user_parameters
*sci_parms
)
428 * Validate the user parameters. If they are not legal, then
431 for (index
= 0; index
< SCI_MAX_PHYS
; index
++) {
432 struct sci_phy_user_params
*u
;
434 u
= &sci_parms
->phys
[index
];
436 if (!((u
->max_speed_generation
<= SCIC_SDS_PARM_MAX_SPEED
) &&
437 (u
->max_speed_generation
> SCIC_SDS_PARM_NO_SPEED
)))
438 return SCI_FAILURE_INVALID_PARAMETER_VALUE
;
440 if (u
->in_connection_align_insertion_frequency
< 3)
441 return SCI_FAILURE_INVALID_PARAMETER_VALUE
;
443 if ((u
->in_connection_align_insertion_frequency
< 3) ||
444 (u
->align_insertion_frequency
== 0) ||
445 (u
->notify_enable_spin_up_insertion_frequency
== 0))
446 return SCI_FAILURE_INVALID_PARAMETER_VALUE
;
449 if ((sci_parms
->stp_inactivity_timeout
== 0) ||
450 (sci_parms
->ssp_inactivity_timeout
== 0) ||
451 (sci_parms
->stp_max_occupancy_timeout
== 0) ||
452 (sci_parms
->ssp_max_occupancy_timeout
== 0) ||
453 (sci_parms
->no_outbound_task_timeout
== 0))
454 return SCI_FAILURE_INVALID_PARAMETER_VALUE
;
456 memcpy(&ihost
->user_parameters
, sci_parms
, sizeof(*sci_parms
));
461 static void sci_oem_defaults(struct isci_host
*ihost
)
463 /* these defaults are overridden by the platform / firmware */
464 struct sci_user_parameters
*user
= &ihost
->user_parameters
;
465 struct sci_oem_params
*oem
= &ihost
->oem_parameters
;
468 /* Default to APC mode. */
469 oem
->controller
.mode_type
= SCIC_PORT_AUTOMATIC_CONFIGURATION_MODE
;
471 /* Default to APC mode. */
472 oem
->controller
.max_concurr_spin_up
= 1;
474 /* Default to no SSC operation. */
475 oem
->controller
.do_enable_ssc
= false;
477 /* Default to short cables on all phys. */
478 oem
->controller
.cable_selection_mask
= 0;
480 /* Initialize all of the port parameter information to narrow ports. */
481 for (i
= 0; i
< SCI_MAX_PORTS
; i
++)
482 oem
->ports
[i
].phy_mask
= 0;
484 /* Initialize all of the phy parameter information. */
485 for (i
= 0; i
< SCI_MAX_PHYS
; i
++) {
486 /* Default to 3G (i.e. Gen 2). */
487 user
->phys
[i
].max_speed_generation
= SCIC_SDS_PARM_GEN2_SPEED
;
489 /* the frequencies cannot be 0 */
490 user
->phys
[i
].align_insertion_frequency
= 0x7f;
491 user
->phys
[i
].in_connection_align_insertion_frequency
= 0xff;
492 user
->phys
[i
].notify_enable_spin_up_insertion_frequency
= 0x33;
494 /* Previous Vitesse based expanders had a arbitration issue that
495 * is worked around by having the upper 32-bits of SAS address
496 * with a value greater then the Vitesse company identifier.
497 * Hence, usage of 0x5FCFFFFF.
499 oem
->phys
[i
].sas_address
.low
= 0x1 + ihost
->id
;
500 oem
->phys
[i
].sas_address
.high
= 0x5FCFFFFF;
503 user
->stp_inactivity_timeout
= 5;
504 user
->ssp_inactivity_timeout
= 5;
505 user
->stp_max_occupancy_timeout
= 5;
506 user
->ssp_max_occupancy_timeout
= 20;
507 user
->no_outbound_task_timeout
= 2;
510 static struct isci_host
*isci_host_alloc(struct pci_dev
*pdev
, int id
)
512 struct isci_orom
*orom
= to_pci_info(pdev
)->orom
;
513 struct sci_user_parameters sci_user_params
;
514 u8 oem_version
= ISCI_ROM_VER_1_0
;
515 struct isci_host
*ihost
;
516 struct Scsi_Host
*shost
;
519 ihost
= devm_kzalloc(&pdev
->dev
, sizeof(*ihost
), GFP_KERNEL
);
525 spin_lock_init(&ihost
->scic_lock
);
526 init_waitqueue_head(&ihost
->eventq
);
527 ihost
->sas_ha
.dev
= &ihost
->pdev
->dev
;
528 ihost
->sas_ha
.lldd_ha
= ihost
;
529 tasklet_init(&ihost
->completion_tasklet
,
530 isci_host_completion_routine
, (unsigned long)ihost
);
532 /* validate module parameters */
533 /* TODO: kill struct sci_user_parameters and reference directly */
534 sci_oem_defaults(ihost
);
535 isci_user_parameters_get(&sci_user_params
);
536 if (sci_user_parameters_set(ihost
, &sci_user_params
)) {
538 "%s: sci_user_parameters_set failed\n", __func__
);
542 /* sanity check platform (or 'firmware') oem parameters */
544 if (id
< 0 || id
>= SCI_MAX_CONTROLLERS
|| id
> orom
->hdr
.num_elements
) {
545 dev_warn(&pdev
->dev
, "parsing firmware oem parameters failed\n");
548 ihost
->oem_parameters
= orom
->ctrl
[id
];
549 oem_version
= orom
->hdr
.version
;
552 /* validate oem parameters (platform, firmware, or built-in defaults) */
553 if (sci_oem_parameters_validate(&ihost
->oem_parameters
, oem_version
)) {
554 dev_warn(&pdev
->dev
, "oem parameter validation failed\n");
558 for (i
= 0; i
< SCI_MAX_PORTS
; i
++) {
559 struct isci_port
*iport
= &ihost
->ports
[i
];
561 INIT_LIST_HEAD(&iport
->remote_dev_list
);
562 iport
->isci_host
= ihost
;
565 for (i
= 0; i
< SCI_MAX_PHYS
; i
++)
566 isci_phy_init(&ihost
->phys
[i
], ihost
, i
);
568 for (i
= 0; i
< SCI_MAX_REMOTE_DEVICES
; i
++) {
569 struct isci_remote_device
*idev
= &ihost
->devices
[i
];
571 INIT_LIST_HEAD(&idev
->node
);
574 shost
= scsi_host_alloc(&isci_sht
, sizeof(void *));
578 dev_info(&pdev
->dev
, "%sSCU controller %d: phy 3-0 cables: "
579 "{%s, %s, %s, %s}\n",
580 (is_cable_select_overridden() ? "* " : ""), ihost
->id
,
581 lookup_cable_names(decode_cable_selection(ihost
, 3)),
582 lookup_cable_names(decode_cable_selection(ihost
, 2)),
583 lookup_cable_names(decode_cable_selection(ihost
, 1)),
584 lookup_cable_names(decode_cable_selection(ihost
, 0)));
586 err
= isci_host_init(ihost
);
590 SHOST_TO_SAS_HA(shost
) = &ihost
->sas_ha
;
591 ihost
->sas_ha
.core
.shost
= shost
;
592 shost
->transportt
= isci_transport_template
;
596 shost
->max_cmd_len
= MAX_COMMAND_SIZE
;
598 err
= scsi_add_host(shost
, &pdev
->dev
);
602 err
= isci_register_sas_ha(ihost
);
604 goto err_shost_remove
;
609 scsi_remove_host(shost
);
611 scsi_host_put(shost
);
616 static int isci_pci_probe(struct pci_dev
*pdev
, const struct pci_device_id
*id
)
618 struct isci_pci_info
*pci_info
;
620 struct isci_host
*isci_host
;
621 const struct firmware
*fw
= NULL
;
622 struct isci_orom
*orom
= NULL
;
623 char *source
= "(platform)";
625 dev_info(&pdev
->dev
, "driver configured for rev: %d silicon\n",
628 pci_info
= devm_kzalloc(&pdev
->dev
, sizeof(*pci_info
), GFP_KERNEL
);
631 pci_set_drvdata(pdev
, pci_info
);
633 if (efi_enabled(EFI_RUNTIME_SERVICES
))
634 orom
= isci_get_efi_var(pdev
);
637 orom
= isci_request_oprom(pdev
);
639 for (i
= 0; orom
&& i
< num_controllers(pdev
); i
++) {
640 if (sci_oem_parameters_validate(&orom
->ctrl
[i
],
641 orom
->hdr
.version
)) {
643 "[%d]: invalid oem parameters detected, falling back to firmware\n", i
);
650 source
= "(firmware)";
651 orom
= isci_request_firmware(pdev
, fw
);
653 /* TODO convert this to WARN_TAINT_ONCE once the
654 * orom/efi parameter support is widely available
657 "Loading user firmware failed, using default "
660 "Default OEM configuration being used: 4 "
661 "narrow ports, and default SAS Addresses\n");
667 "OEM SAS parameters (version: %u.%u) loaded %s\n",
668 (orom
->hdr
.version
& 0xf0) >> 4,
669 (orom
->hdr
.version
& 0xf), source
);
671 pci_info
->orom
= orom
;
673 err
= isci_pci_init(pdev
);
677 for (i
= 0; i
< num_controllers(pdev
); i
++) {
678 struct isci_host
*h
= isci_host_alloc(pdev
, i
);
684 pci_info
->hosts
[i
] = h
;
686 /* turn on DIF support */
687 scsi_host_set_prot(to_shost(h
),
688 SHOST_DIF_TYPE1_PROTECTION
|
689 SHOST_DIF_TYPE2_PROTECTION
|
690 SHOST_DIF_TYPE3_PROTECTION
);
691 scsi_host_set_guard(to_shost(h
), SHOST_DIX_GUARD_CRC
);
694 err
= isci_setup_interrupts(pdev
);
698 for_each_isci_host(i
, isci_host
, pdev
)
699 scsi_scan_host(to_shost(isci_host
));
704 for_each_isci_host(i
, isci_host
, pdev
)
705 isci_unregister(isci_host
);
709 static void isci_pci_remove(struct pci_dev
*pdev
)
711 struct isci_host
*ihost
;
714 for_each_isci_host(i
, ihost
, pdev
) {
715 wait_for_start(ihost
);
716 isci_unregister(ihost
);
717 isci_host_deinit(ihost
);
721 #ifdef CONFIG_PM_SLEEP
722 static int isci_suspend(struct device
*dev
)
724 struct pci_dev
*pdev
= to_pci_dev(dev
);
725 struct isci_host
*ihost
;
728 for_each_isci_host(i
, ihost
, pdev
) {
729 sas_suspend_ha(&ihost
->sas_ha
);
730 isci_host_deinit(ihost
);
733 pci_save_state(pdev
);
734 pci_disable_device(pdev
);
735 pci_set_power_state(pdev
, PCI_D3hot
);
740 static int isci_resume(struct device
*dev
)
742 struct pci_dev
*pdev
= to_pci_dev(dev
);
743 struct isci_host
*ihost
;
746 pci_set_power_state(pdev
, PCI_D0
);
747 pci_restore_state(pdev
);
749 rc
= pcim_enable_device(pdev
);
752 "enabling device failure after resume(%d)\n", rc
);
756 pci_set_master(pdev
);
758 for_each_isci_host(i
, ihost
, pdev
) {
759 sas_prep_resume_ha(&ihost
->sas_ha
);
761 isci_host_init(ihost
);
762 isci_host_start(ihost
->sas_ha
.core
.shost
);
763 wait_for_start(ihost
);
765 sas_resume_ha(&ihost
->sas_ha
);
772 static SIMPLE_DEV_PM_OPS(isci_pm_ops
, isci_suspend
, isci_resume
);
774 static struct pci_driver isci_pci_driver
= {
776 .id_table
= isci_id_table
,
777 .probe
= isci_pci_probe
,
778 .remove
= isci_pci_remove
,
779 .driver
.pm
= &isci_pm_ops
,
782 static __init
int isci_init(void)
786 pr_info("%s: Intel(R) C600 SAS Controller Driver - version %s\n",
787 DRV_NAME
, DRV_VERSION
);
789 isci_transport_template
= sas_domain_attach_transport(&isci_transport_ops
);
790 if (!isci_transport_template
)
793 err
= pci_register_driver(&isci_pci_driver
);
795 sas_release_transport(isci_transport_template
);
800 static __exit
void isci_exit(void)
802 pci_unregister_driver(&isci_pci_driver
);
803 sas_release_transport(isci_transport_template
);
806 MODULE_LICENSE("Dual BSD/GPL");
807 MODULE_FIRMWARE(ISCI_FW_NAME
);
808 module_init(isci_init
);
809 module_exit(isci_exit
);