Dan Williams | 6f231dd | 2011-07-02 22:56:22 -0700 | [diff] [blame] | 1 | /* |
| 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. |
| 4 | * |
| 5 | * GPL LICENSE SUMMARY |
| 6 | * |
| 7 | * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. |
| 8 | * |
| 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. |
| 12 | * |
| 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. |
| 17 | * |
| 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. |
| 23 | * |
| 24 | * BSD LICENSE |
| 25 | * |
| 26 | * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. |
| 27 | * All rights reserved. |
| 28 | * |
| 29 | * Redistribution and use in source and binary forms, with or without |
| 30 | * modification, are permitted provided that the following conditions |
| 31 | * are met: |
| 32 | * |
| 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 |
| 38 | * distribution. |
| 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. |
| 42 | * |
| 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. |
| 54 | */ |
| 55 | |
| 56 | #include <linux/kernel.h> |
| 57 | #include <linux/init.h> |
| 58 | #include <linux/module.h> |
Dan Williams | d044af1 | 2011-03-08 09:52:49 -0800 | [diff] [blame] | 59 | #include <linux/firmware.h> |
| 60 | #include <linux/efi.h> |
Dan Williams | 6f231dd | 2011-07-02 22:56:22 -0700 | [diff] [blame] | 61 | #include <asm/string.h> |
Dave Jiang | 3a7bda8 | 2011-07-29 17:17:00 -0700 | [diff] [blame] | 62 | #include <scsi/scsi_host.h> |
Andrzej Jakowski | 13de2c5 | 2012-02-10 01:18:54 -0800 | [diff] [blame] | 63 | #include "host.h" |
Dan Williams | 6f231dd | 2011-07-02 22:56:22 -0700 | [diff] [blame] | 64 | #include "isci.h" |
| 65 | #include "task.h" |
Dan Williams | d044af1 | 2011-03-08 09:52:49 -0800 | [diff] [blame] | 66 | #include "probe_roms.h" |
Dan Williams | 6f231dd | 2011-07-02 22:56:22 -0700 | [diff] [blame] | 67 | |
Dan Williams | 98e2a5a | 2011-07-29 17:17:21 -0700 | [diff] [blame] | 68 | #define MAJ 1 |
Dan Williams | d3fd2e2 | 2012-01-04 01:33:10 -0800 | [diff] [blame] | 69 | #define MIN 1 |
Dan Williams | 98e2a5a | 2011-07-29 17:17:21 -0700 | [diff] [blame] | 70 | #define BUILD 0 |
| 71 | #define DRV_VERSION __stringify(MAJ) "." __stringify(MIN) "." \ |
| 72 | __stringify(BUILD) |
| 73 | |
| 74 | MODULE_VERSION(DRV_VERSION); |
| 75 | |
Dan Williams | 6f231dd | 2011-07-02 22:56:22 -0700 | [diff] [blame] | 76 | static struct scsi_transport_template *isci_transport_template; |
Dan Williams | 6f231dd | 2011-07-02 22:56:22 -0700 | [diff] [blame] | 77 | |
| 78 | static DEFINE_PCI_DEVICE_TABLE(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),}, |
| 91 | {} |
| 92 | }; |
| 93 | |
Dan Williams | 6f231dd | 2011-07-02 22:56:22 -0700 | [diff] [blame] | 94 | MODULE_DEVICE_TABLE(pci, isci_id_table); |
| 95 | |
Dan Williams | 6f231dd | 2011-07-02 22:56:22 -0700 | [diff] [blame] | 96 | /* linux isci specific settings */ |
Dan Williams | 6f231dd | 2011-07-02 22:56:22 -0700 | [diff] [blame] | 97 | |
Marcin Tomczak | 6024d38 | 2012-01-04 01:32:54 -0800 | [diff] [blame] | 98 | unsigned char no_outbound_task_to = 2; |
Dave Jiang | b5f18a2 | 2011-03-16 14:57:23 -0700 | [diff] [blame] | 99 | module_param(no_outbound_task_to, byte, 0); |
| 100 | MODULE_PARM_DESC(no_outbound_task_to, "No Outbound Task Timeout (1us incr)"); |
| 101 | |
| 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)"); |
| 105 | |
| 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)"); |
| 109 | |
| 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)"); |
| 113 | |
| 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)"); |
| 117 | |
Jeff Skirvin | be168a3 | 2012-01-04 01:33:00 -0800 | [diff] [blame] | 118 | unsigned char phy_gen = SCIC_SDS_PARM_GEN2_SPEED; |
Dave Jiang | b5f18a2 | 2011-03-16 14:57:23 -0700 | [diff] [blame] | 119 | module_param(phy_gen, byte, 0); |
| 120 | MODULE_PARM_DESC(phy_gen, "PHY generation (1: 1.5Gbps 2: 3.0Gbps 3: 6.0Gbps)"); |
| 121 | |
Andrzej Jakowski | 7000f7c | 2011-10-27 15:05:42 -0700 | [diff] [blame] | 122 | unsigned char max_concurr_spinup; |
Dave Jiang | b5f18a2 | 2011-03-16 14:57:23 -0700 | [diff] [blame] | 123 | module_param(max_concurr_spinup, byte, 0); |
| 124 | MODULE_PARM_DESC(max_concurr_spinup, "Max concurrent device spinup"); |
| 125 | |
Jeff Skirvin | 9fee607 | 2012-01-04 01:32:49 -0800 | [diff] [blame] | 126 | uint cable_selection_override = CABLE_OVERRIDE_DISABLED; |
| 127 | module_param(cable_selection_override, uint, 0); |
| 128 | |
| 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\""); |
| 133 | |
Dave Jiang | 3a7bda8 | 2011-07-29 17:17:00 -0700 | [diff] [blame] | 134 | static ssize_t isci_show_id(struct device *dev, struct device_attribute *attr, char *buf) |
| 135 | { |
| 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); |
| 139 | |
| 140 | return snprintf(buf, PAGE_SIZE, "%d\n", ihost->id); |
| 141 | } |
| 142 | |
| 143 | static DEVICE_ATTR(isci_id, S_IRUGO, isci_show_id, NULL); |
| 144 | |
| 145 | struct device_attribute *isci_host_attrs[] = { |
| 146 | &dev_attr_isci_id, |
| 147 | NULL |
| 148 | }; |
| 149 | |
Dan Williams | 6f231dd | 2011-07-02 22:56:22 -0700 | [diff] [blame] | 150 | static struct scsi_host_template isci_sht = { |
| 151 | |
| 152 | .module = THIS_MODULE, |
| 153 | .name = DRV_NAME, |
Havard Skinnemoen | 92cd511 | 2011-02-18 18:32:08 -0800 | [diff] [blame] | 154 | .proc_name = DRV_NAME, |
Dan Williams | 6f231dd | 2011-07-02 22:56:22 -0700 | [diff] [blame] | 155 | .queuecommand = sas_queuecommand, |
| 156 | .target_alloc = sas_target_alloc, |
| 157 | .slave_configure = sas_slave_configure, |
Dan Williams | 6f231dd | 2011-07-02 22:56:22 -0700 | [diff] [blame] | 158 | .scan_finished = isci_host_scan_finished, |
Artur Wojcik | e468dc1 | 2012-06-21 23:41:56 -0700 | [diff] [blame] | 159 | .scan_start = isci_host_start, |
Dan Williams | 6f231dd | 2011-07-02 22:56:22 -0700 | [diff] [blame] | 160 | .change_queue_depth = sas_change_queue_depth, |
| 161 | .change_queue_type = sas_change_queue_type, |
| 162 | .bios_param = sas_bios_param, |
| 163 | .can_queue = ISCI_CAN_QUEUE_VAL, |
| 164 | .cmd_per_lun = 1, |
| 165 | .this_id = -1, |
| 166 | .sg_tablesize = SG_ALL, |
| 167 | .max_sectors = SCSI_DEFAULT_MAX_SECTORS, |
| 168 | .use_clustering = ENABLE_CLUSTERING, |
Dan Williams | 4e646dd | 2012-06-21 23:31:04 -0700 | [diff] [blame] | 169 | .eh_abort_handler = sas_eh_abort_handler, |
| 170 | .eh_device_reset_handler = sas_eh_device_reset_handler, |
| 171 | .eh_bus_reset_handler = sas_eh_bus_reset_handler, |
Dan Williams | 6f231dd | 2011-07-02 22:56:22 -0700 | [diff] [blame] | 172 | .target_destroy = sas_target_destroy, |
| 173 | .ioctl = sas_ioctl, |
Dave Jiang | 3a7bda8 | 2011-07-29 17:17:00 -0700 | [diff] [blame] | 174 | .shost_attrs = isci_host_attrs, |
Dan Williams | 6f231dd | 2011-07-02 22:56:22 -0700 | [diff] [blame] | 175 | }; |
| 176 | |
| 177 | static struct sas_domain_function_template isci_transport_ops = { |
| 178 | |
| 179 | /* The class calls these to notify the LLDD of an event. */ |
| 180 | .lldd_port_formed = isci_port_formed, |
| 181 | .lldd_port_deformed = isci_port_deformed, |
| 182 | |
| 183 | /* The class calls these when a device is found or gone. */ |
| 184 | .lldd_dev_found = isci_remote_device_found, |
| 185 | .lldd_dev_gone = isci_remote_device_gone, |
| 186 | |
| 187 | .lldd_execute_task = isci_task_execute_task, |
| 188 | /* Task Management Functions. Must be called from process context. */ |
| 189 | .lldd_abort_task = isci_task_abort_task, |
| 190 | .lldd_abort_task_set = isci_task_abort_task_set, |
| 191 | .lldd_clear_aca = isci_task_clear_aca, |
| 192 | .lldd_clear_task_set = isci_task_clear_task_set, |
| 193 | .lldd_I_T_nexus_reset = isci_task_I_T_nexus_reset, |
| 194 | .lldd_lu_reset = isci_task_lu_reset, |
| 195 | .lldd_query_task = isci_task_query_task, |
| 196 | |
Dan Williams | 687833a | 2011-11-17 18:01:38 -0800 | [diff] [blame] | 197 | /* ata recovery called from ata-eh */ |
| 198 | .lldd_ata_check_ready = isci_ata_check_ready, |
| 199 | |
Dan Williams | 6f231dd | 2011-07-02 22:56:22 -0700 | [diff] [blame] | 200 | /* Port and Adapter management */ |
| 201 | .lldd_clear_nexus_port = isci_task_clear_nexus_port, |
| 202 | .lldd_clear_nexus_ha = isci_task_clear_nexus_ha, |
| 203 | |
| 204 | /* Phy management */ |
| 205 | .lldd_control_phy = isci_phy_control, |
Dan Williams | ad4f4c1 | 2011-09-01 21:18:31 -0700 | [diff] [blame] | 206 | |
| 207 | /* GPIO support */ |
| 208 | .lldd_write_gpio = isci_gpio_write, |
Dan Williams | 6f231dd | 2011-07-02 22:56:22 -0700 | [diff] [blame] | 209 | }; |
| 210 | |
| 211 | |
| 212 | /****************************************************************************** |
| 213 | * P R O T E C T E D M E T H O D S |
| 214 | ******************************************************************************/ |
| 215 | |
| 216 | |
| 217 | |
| 218 | /** |
| 219 | * isci_register_sas_ha() - This method initializes various lldd |
| 220 | * specific members of the sas_ha struct and calls the libsas |
| 221 | * sas_register_ha() function. |
| 222 | * @isci_host: This parameter specifies the lldd specific wrapper for the |
| 223 | * libsas sas_ha struct. |
| 224 | * |
Anatol Pomozov | 4907cb7 | 2012-09-01 10:31:09 -0700 | [diff] [blame] | 225 | * This method returns an error code indicating success or failure. The user |
Dan Williams | 6f231dd | 2011-07-02 22:56:22 -0700 | [diff] [blame] | 226 | * should check for possible memory allocation error return otherwise, a zero |
| 227 | * indicates success. |
| 228 | */ |
| 229 | static int isci_register_sas_ha(struct isci_host *isci_host) |
| 230 | { |
| 231 | int i; |
| 232 | struct sas_ha_struct *sas_ha = &(isci_host->sas_ha); |
| 233 | struct asd_sas_phy **sas_phys; |
| 234 | struct asd_sas_port **sas_ports; |
| 235 | |
| 236 | sas_phys = devm_kzalloc(&isci_host->pdev->dev, |
| 237 | SCI_MAX_PHYS * sizeof(void *), |
| 238 | GFP_KERNEL); |
| 239 | if (!sas_phys) |
| 240 | return -ENOMEM; |
| 241 | |
| 242 | sas_ports = devm_kzalloc(&isci_host->pdev->dev, |
| 243 | SCI_MAX_PORTS * sizeof(void *), |
| 244 | GFP_KERNEL); |
| 245 | if (!sas_ports) |
| 246 | return -ENOMEM; |
| 247 | |
Dan Williams | 6f231dd | 2011-07-02 22:56:22 -0700 | [diff] [blame] | 248 | sas_ha->sas_ha_name = DRV_NAME; |
| 249 | sas_ha->lldd_module = THIS_MODULE; |
Dan Williams | 150fc6f | 2011-02-25 10:25:21 -0800 | [diff] [blame] | 250 | sas_ha->sas_addr = &isci_host->phys[0].sas_addr[0]; |
Dan Williams | 6f231dd | 2011-07-02 22:56:22 -0700 | [diff] [blame] | 251 | |
Dan Williams | 6f231dd | 2011-07-02 22:56:22 -0700 | [diff] [blame] | 252 | for (i = 0; i < SCI_MAX_PHYS; i++) { |
Dan Williams | e531381 | 2011-05-07 10:11:43 -0700 | [diff] [blame] | 253 | sas_phys[i] = &isci_host->phys[i].sas_phy; |
Dan Williams | c132f69 | 2012-01-03 23:26:08 -0800 | [diff] [blame] | 254 | sas_ports[i] = &isci_host->sas_ports[i]; |
Dan Williams | 6f231dd | 2011-07-02 22:56:22 -0700 | [diff] [blame] | 255 | } |
| 256 | |
| 257 | sas_ha->sas_phy = sas_phys; |
| 258 | sas_ha->sas_port = sas_ports; |
| 259 | sas_ha->num_phys = SCI_MAX_PHYS; |
| 260 | |
| 261 | sas_ha->lldd_queue_size = ISCI_CAN_QUEUE_VAL; |
| 262 | sas_ha->lldd_max_execute_num = 1; |
| 263 | sas_ha->strict_wide_ports = 1; |
| 264 | |
| 265 | sas_register_ha(sas_ha); |
| 266 | |
| 267 | return 0; |
| 268 | } |
| 269 | |
Dan Williams | 34cad85 | 2011-03-10 00:01:43 -0800 | [diff] [blame] | 270 | static void isci_unregister(struct isci_host *isci_host) |
| 271 | { |
| 272 | struct Scsi_Host *shost; |
| 273 | |
Dan Williams | 6f231dd | 2011-07-02 22:56:22 -0700 | [diff] [blame] | 274 | if (!isci_host) |
| 275 | return; |
| 276 | |
Dan Williams | 34cad85 | 2011-03-10 00:01:43 -0800 | [diff] [blame] | 277 | sas_unregister_ha(&isci_host->sas_ha); |
Dan Williams | 6f231dd | 2011-07-02 22:56:22 -0700 | [diff] [blame] | 278 | |
Dan Williams | d1dc5e2 | 2012-02-25 14:29:49 -0800 | [diff] [blame] | 279 | shost = to_shost(isci_host); |
| 280 | sas_remove_host(shost); |
| 281 | scsi_remove_host(shost); |
| 282 | scsi_host_put(shost); |
Dan Williams | 6f231dd | 2011-07-02 22:56:22 -0700 | [diff] [blame] | 283 | } |
| 284 | |
Greg Kroah-Hartman | 6f03979 | 2012-12-21 13:08:55 -0800 | [diff] [blame] | 285 | static int isci_pci_init(struct pci_dev *pdev) |
Dan Williams | 6f231dd | 2011-07-02 22:56:22 -0700 | [diff] [blame] | 286 | { |
Artur Wojcik | cc3dbd0 | 2011-05-04 07:58:16 +0000 | [diff] [blame] | 287 | int err, bar_num, bar_mask = 0; |
Dan Williams | 6f231dd | 2011-07-02 22:56:22 -0700 | [diff] [blame] | 288 | void __iomem * const *iomap; |
| 289 | |
| 290 | err = pcim_enable_device(pdev); |
| 291 | if (err) { |
| 292 | dev_err(&pdev->dev, |
| 293 | "failed enable PCI device %s!\n", |
| 294 | pci_name(pdev)); |
| 295 | return err; |
| 296 | } |
| 297 | |
| 298 | for (bar_num = 0; bar_num < SCI_PCI_BAR_COUNT; bar_num++) |
| 299 | bar_mask |= 1 << (bar_num * 2); |
| 300 | |
| 301 | err = pcim_iomap_regions(pdev, bar_mask, DRV_NAME); |
| 302 | if (err) |
| 303 | return err; |
| 304 | |
| 305 | iomap = pcim_iomap_table(pdev); |
| 306 | if (!iomap) |
| 307 | return -ENOMEM; |
| 308 | |
| 309 | pci_set_master(pdev); |
| 310 | |
| 311 | err = pci_set_dma_mask(pdev, DMA_BIT_MASK(64)); |
| 312 | if (err) { |
| 313 | err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); |
| 314 | if (err) |
| 315 | return err; |
| 316 | } |
| 317 | |
| 318 | err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)); |
| 319 | if (err) { |
| 320 | err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)); |
| 321 | if (err) |
| 322 | return err; |
| 323 | } |
| 324 | |
| 325 | return 0; |
| 326 | } |
| 327 | |
Dan Williams | 6f231dd | 2011-07-02 22:56:22 -0700 | [diff] [blame] | 328 | static int num_controllers(struct pci_dev *pdev) |
| 329 | { |
| 330 | /* bar size alone can tell us if we are running with a dual controller |
| 331 | * part, no need to trust revision ids that might be under broken firmware |
| 332 | * control |
| 333 | */ |
| 334 | resource_size_t scu_bar_size = pci_resource_len(pdev, SCI_SCU_BAR*2); |
| 335 | resource_size_t smu_bar_size = pci_resource_len(pdev, SCI_SMU_BAR*2); |
Dan Williams | f942f32 | 2011-03-26 16:30:06 -0700 | [diff] [blame] | 336 | |
Dan Williams | 6f231dd | 2011-07-02 22:56:22 -0700 | [diff] [blame] | 337 | if (scu_bar_size >= SCI_SCU_BAR_SIZE*SCI_MAX_CONTROLLERS && |
| 338 | smu_bar_size >= SCI_SMU_BAR_SIZE*SCI_MAX_CONTROLLERS) |
| 339 | return SCI_MAX_CONTROLLERS; |
| 340 | else |
| 341 | return 1; |
| 342 | } |
| 343 | |
| 344 | static int isci_setup_interrupts(struct pci_dev *pdev) |
| 345 | { |
| 346 | int err, i, num_msix; |
Dan Williams | 31e824e | 2011-04-19 12:32:51 -0700 | [diff] [blame] | 347 | struct isci_host *ihost; |
Dan Williams | 6f231dd | 2011-07-02 22:56:22 -0700 | [diff] [blame] | 348 | struct isci_pci_info *pci_info = to_pci_info(pdev); |
| 349 | |
| 350 | /* |
| 351 | * Determine the number of vectors associated with this |
| 352 | * PCI function. |
| 353 | */ |
| 354 | num_msix = num_controllers(pdev) * SCI_NUM_MSI_X_INT; |
| 355 | |
| 356 | for (i = 0; i < num_msix; i++) |
| 357 | pci_info->msix_entries[i].entry = i; |
| 358 | |
| 359 | err = pci_enable_msix(pdev, pci_info->msix_entries, num_msix); |
| 360 | if (err) |
| 361 | goto intx; |
| 362 | |
| 363 | for (i = 0; i < num_msix; i++) { |
| 364 | int id = i / SCI_NUM_MSI_X_INT; |
| 365 | struct msix_entry *msix = &pci_info->msix_entries[i]; |
Dan Williams | 92f4f0f | 2011-02-18 09:25:11 -0800 | [diff] [blame] | 366 | irq_handler_t isr; |
| 367 | |
Dan Williams | 31e824e | 2011-04-19 12:32:51 -0700 | [diff] [blame] | 368 | ihost = pci_info->hosts[id]; |
Dan Williams | 92f4f0f | 2011-02-18 09:25:11 -0800 | [diff] [blame] | 369 | /* odd numbered vectors are error interrupts */ |
| 370 | if (i & 1) |
| 371 | isr = isci_error_isr; |
| 372 | else |
| 373 | isr = isci_msix_isr; |
Dan Williams | 6f231dd | 2011-07-02 22:56:22 -0700 | [diff] [blame] | 374 | |
Dan Williams | 92f4f0f | 2011-02-18 09:25:11 -0800 | [diff] [blame] | 375 | err = devm_request_irq(&pdev->dev, msix->vector, isr, 0, |
Dan Williams | 31e824e | 2011-04-19 12:32:51 -0700 | [diff] [blame] | 376 | DRV_NAME"-msix", ihost); |
Dan Williams | 6f231dd | 2011-07-02 22:56:22 -0700 | [diff] [blame] | 377 | if (!err) |
| 378 | continue; |
| 379 | |
| 380 | dev_info(&pdev->dev, "msix setup failed falling back to intx\n"); |
| 381 | while (i--) { |
| 382 | id = i / SCI_NUM_MSI_X_INT; |
Dan Williams | 31e824e | 2011-04-19 12:32:51 -0700 | [diff] [blame] | 383 | ihost = pci_info->hosts[id]; |
Dan Williams | 6f231dd | 2011-07-02 22:56:22 -0700 | [diff] [blame] | 384 | msix = &pci_info->msix_entries[i]; |
Dan Williams | 31e824e | 2011-04-19 12:32:51 -0700 | [diff] [blame] | 385 | devm_free_irq(&pdev->dev, msix->vector, ihost); |
Dan Williams | 6f231dd | 2011-07-02 22:56:22 -0700 | [diff] [blame] | 386 | } |
| 387 | pci_disable_msix(pdev); |
| 388 | goto intx; |
| 389 | } |
Dan Williams | 6f231dd | 2011-07-02 22:56:22 -0700 | [diff] [blame] | 390 | return 0; |
| 391 | |
| 392 | intx: |
Dan Williams | 31e824e | 2011-04-19 12:32:51 -0700 | [diff] [blame] | 393 | for_each_isci_host(i, ihost, pdev) { |
| 394 | err = devm_request_irq(&pdev->dev, pdev->irq, isci_intx_isr, |
| 395 | IRQF_SHARED, DRV_NAME"-intx", ihost); |
| 396 | if (err) |
| 397 | break; |
| 398 | } |
Dan Williams | 6f231dd | 2011-07-02 22:56:22 -0700 | [diff] [blame] | 399 | return err; |
| 400 | } |
| 401 | |
Dan Williams | abec912 | 2012-02-15 13:58:42 -0800 | [diff] [blame] | 402 | static void isci_user_parameters_get(struct sci_user_parameters *u) |
| 403 | { |
| 404 | int i; |
| 405 | |
| 406 | for (i = 0; i < SCI_MAX_PHYS; i++) { |
| 407 | struct sci_phy_user_params *u_phy = &u->phys[i]; |
| 408 | |
| 409 | u_phy->max_speed_generation = phy_gen; |
| 410 | |
| 411 | /* we are not exporting these for now */ |
| 412 | u_phy->align_insertion_frequency = 0x7f; |
| 413 | u_phy->in_connection_align_insertion_frequency = 0xff; |
| 414 | u_phy->notify_enable_spin_up_insertion_frequency = 0x33; |
| 415 | } |
| 416 | |
| 417 | u->stp_inactivity_timeout = stp_inactive_to; |
| 418 | u->ssp_inactivity_timeout = ssp_inactive_to; |
| 419 | u->stp_max_occupancy_timeout = stp_max_occ_to; |
| 420 | u->ssp_max_occupancy_timeout = ssp_max_occ_to; |
| 421 | u->no_outbound_task_timeout = no_outbound_task_to; |
| 422 | u->max_concurr_spinup = max_concurr_spinup; |
| 423 | } |
| 424 | |
| 425 | static enum sci_status sci_user_parameters_set(struct isci_host *ihost, |
| 426 | struct sci_user_parameters *sci_parms) |
| 427 | { |
| 428 | u16 index; |
| 429 | |
| 430 | /* |
| 431 | * Validate the user parameters. If they are not legal, then |
| 432 | * return a failure. |
| 433 | */ |
| 434 | for (index = 0; index < SCI_MAX_PHYS; index++) { |
| 435 | struct sci_phy_user_params *u; |
| 436 | |
| 437 | u = &sci_parms->phys[index]; |
| 438 | |
| 439 | if (!((u->max_speed_generation <= SCIC_SDS_PARM_MAX_SPEED) && |
| 440 | (u->max_speed_generation > SCIC_SDS_PARM_NO_SPEED))) |
| 441 | return SCI_FAILURE_INVALID_PARAMETER_VALUE; |
| 442 | |
| 443 | if (u->in_connection_align_insertion_frequency < 3) |
| 444 | return SCI_FAILURE_INVALID_PARAMETER_VALUE; |
| 445 | |
| 446 | if ((u->in_connection_align_insertion_frequency < 3) || |
| 447 | (u->align_insertion_frequency == 0) || |
| 448 | (u->notify_enable_spin_up_insertion_frequency == 0)) |
| 449 | return SCI_FAILURE_INVALID_PARAMETER_VALUE; |
| 450 | } |
| 451 | |
| 452 | if ((sci_parms->stp_inactivity_timeout == 0) || |
| 453 | (sci_parms->ssp_inactivity_timeout == 0) || |
| 454 | (sci_parms->stp_max_occupancy_timeout == 0) || |
| 455 | (sci_parms->ssp_max_occupancy_timeout == 0) || |
| 456 | (sci_parms->no_outbound_task_timeout == 0)) |
| 457 | return SCI_FAILURE_INVALID_PARAMETER_VALUE; |
| 458 | |
| 459 | memcpy(&ihost->user_parameters, sci_parms, sizeof(*sci_parms)); |
| 460 | |
| 461 | return SCI_SUCCESS; |
| 462 | } |
| 463 | |
| 464 | static void sci_oem_defaults(struct isci_host *ihost) |
| 465 | { |
| 466 | /* these defaults are overridden by the platform / firmware */ |
| 467 | struct sci_user_parameters *user = &ihost->user_parameters; |
| 468 | struct sci_oem_params *oem = &ihost->oem_parameters; |
| 469 | int i; |
| 470 | |
| 471 | /* Default to APC mode. */ |
| 472 | oem->controller.mode_type = SCIC_PORT_AUTOMATIC_CONFIGURATION_MODE; |
| 473 | |
| 474 | /* Default to APC mode. */ |
| 475 | oem->controller.max_concurr_spin_up = 1; |
| 476 | |
| 477 | /* Default to no SSC operation. */ |
| 478 | oem->controller.do_enable_ssc = false; |
| 479 | |
| 480 | /* Default to short cables on all phys. */ |
| 481 | oem->controller.cable_selection_mask = 0; |
| 482 | |
| 483 | /* Initialize all of the port parameter information to narrow ports. */ |
| 484 | for (i = 0; i < SCI_MAX_PORTS; i++) |
| 485 | oem->ports[i].phy_mask = 0; |
| 486 | |
| 487 | /* Initialize all of the phy parameter information. */ |
| 488 | for (i = 0; i < SCI_MAX_PHYS; i++) { |
| 489 | /* Default to 3G (i.e. Gen 2). */ |
| 490 | user->phys[i].max_speed_generation = SCIC_SDS_PARM_GEN2_SPEED; |
| 491 | |
| 492 | /* the frequencies cannot be 0 */ |
| 493 | user->phys[i].align_insertion_frequency = 0x7f; |
| 494 | user->phys[i].in_connection_align_insertion_frequency = 0xff; |
| 495 | user->phys[i].notify_enable_spin_up_insertion_frequency = 0x33; |
| 496 | |
| 497 | /* Previous Vitesse based expanders had a arbitration issue that |
| 498 | * is worked around by having the upper 32-bits of SAS address |
| 499 | * with a value greater then the Vitesse company identifier. |
| 500 | * Hence, usage of 0x5FCFFFFF. |
| 501 | */ |
| 502 | oem->phys[i].sas_address.low = 0x1 + ihost->id; |
| 503 | oem->phys[i].sas_address.high = 0x5FCFFFFF; |
| 504 | } |
| 505 | |
| 506 | user->stp_inactivity_timeout = 5; |
| 507 | user->ssp_inactivity_timeout = 5; |
| 508 | user->stp_max_occupancy_timeout = 5; |
| 509 | user->ssp_max_occupancy_timeout = 20; |
| 510 | user->no_outbound_task_timeout = 2; |
| 511 | } |
| 512 | |
Dan Williams | 6f231dd | 2011-07-02 22:56:22 -0700 | [diff] [blame] | 513 | static struct isci_host *isci_host_alloc(struct pci_dev *pdev, int id) |
| 514 | { |
Dan Williams | abec912 | 2012-02-15 13:58:42 -0800 | [diff] [blame] | 515 | struct isci_orom *orom = to_pci_info(pdev)->orom; |
| 516 | struct sci_user_parameters sci_user_params; |
| 517 | u8 oem_version = ISCI_ROM_VER_1_0; |
| 518 | struct isci_host *ihost; |
Dan Williams | 6f231dd | 2011-07-02 22:56:22 -0700 | [diff] [blame] | 519 | struct Scsi_Host *shost; |
Dan Williams | abec912 | 2012-02-15 13:58:42 -0800 | [diff] [blame] | 520 | int err, i; |
Dan Williams | 6f231dd | 2011-07-02 22:56:22 -0700 | [diff] [blame] | 521 | |
Dan Williams | abec912 | 2012-02-15 13:58:42 -0800 | [diff] [blame] | 522 | ihost = devm_kzalloc(&pdev->dev, sizeof(*ihost), GFP_KERNEL); |
| 523 | if (!ihost) |
Dan Williams | 6f231dd | 2011-07-02 22:56:22 -0700 | [diff] [blame] | 524 | return NULL; |
| 525 | |
Dan Williams | abec912 | 2012-02-15 13:58:42 -0800 | [diff] [blame] | 526 | ihost->pdev = pdev; |
| 527 | ihost->id = id; |
| 528 | spin_lock_init(&ihost->scic_lock); |
| 529 | init_waitqueue_head(&ihost->eventq); |
| 530 | ihost->sas_ha.dev = &ihost->pdev->dev; |
| 531 | ihost->sas_ha.lldd_ha = ihost; |
| 532 | tasklet_init(&ihost->completion_tasklet, |
| 533 | isci_host_completion_routine, (unsigned long)ihost); |
| 534 | |
| 535 | /* validate module parameters */ |
| 536 | /* TODO: kill struct sci_user_parameters and reference directly */ |
| 537 | sci_oem_defaults(ihost); |
| 538 | isci_user_parameters_get(&sci_user_params); |
| 539 | if (sci_user_parameters_set(ihost, &sci_user_params)) { |
| 540 | dev_warn(&pdev->dev, |
| 541 | "%s: sci_user_parameters_set failed\n", __func__); |
| 542 | return NULL; |
| 543 | } |
| 544 | |
| 545 | /* sanity check platform (or 'firmware') oem parameters */ |
| 546 | if (orom) { |
| 547 | if (id < 0 || id >= SCI_MAX_CONTROLLERS || id > orom->hdr.num_elements) { |
| 548 | dev_warn(&pdev->dev, "parsing firmware oem parameters failed\n"); |
| 549 | return NULL; |
| 550 | } |
| 551 | ihost->oem_parameters = orom->ctrl[id]; |
| 552 | oem_version = orom->hdr.version; |
| 553 | } |
| 554 | |
| 555 | /* validate oem parameters (platform, firmware, or built-in defaults) */ |
| 556 | if (sci_oem_parameters_validate(&ihost->oem_parameters, oem_version)) { |
| 557 | dev_warn(&pdev->dev, "oem parameter validation failed\n"); |
| 558 | return NULL; |
| 559 | } |
| 560 | |
Dan Williams | abec912 | 2012-02-15 13:58:42 -0800 | [diff] [blame] | 561 | for (i = 0; i < SCI_MAX_PORTS; i++) { |
| 562 | struct isci_port *iport = &ihost->ports[i]; |
| 563 | |
| 564 | INIT_LIST_HEAD(&iport->remote_dev_list); |
| 565 | iport->isci_host = ihost; |
| 566 | } |
| 567 | |
| 568 | for (i = 0; i < SCI_MAX_PHYS; i++) |
| 569 | isci_phy_init(&ihost->phys[i], ihost, i); |
| 570 | |
| 571 | for (i = 0; i < SCI_MAX_REMOTE_DEVICES; i++) { |
| 572 | struct isci_remote_device *idev = &ihost->devices[i]; |
| 573 | |
Dan Williams | abec912 | 2012-02-15 13:58:42 -0800 | [diff] [blame] | 574 | INIT_LIST_HEAD(&idev->node); |
| 575 | } |
Dan Williams | 6f231dd | 2011-07-02 22:56:22 -0700 | [diff] [blame] | 576 | |
| 577 | shost = scsi_host_alloc(&isci_sht, sizeof(void *)); |
| 578 | if (!shost) |
| 579 | return NULL; |
Dan Williams | 6f231dd | 2011-07-02 22:56:22 -0700 | [diff] [blame] | 580 | |
Jeff Skirvin | 9fee607 | 2012-01-04 01:32:49 -0800 | [diff] [blame] | 581 | dev_info(&pdev->dev, "%sSCU controller %d: phy 3-0 cables: " |
| 582 | "{%s, %s, %s, %s}\n", |
Dan Williams | abec912 | 2012-02-15 13:58:42 -0800 | [diff] [blame] | 583 | (is_cable_select_overridden() ? "* " : ""), ihost->id, |
| 584 | lookup_cable_names(decode_cable_selection(ihost, 3)), |
| 585 | lookup_cable_names(decode_cable_selection(ihost, 2)), |
| 586 | lookup_cable_names(decode_cable_selection(ihost, 1)), |
| 587 | lookup_cable_names(decode_cable_selection(ihost, 0))); |
Jeff Skirvin | 9fee607 | 2012-01-04 01:32:49 -0800 | [diff] [blame] | 588 | |
Dan Williams | abec912 | 2012-02-15 13:58:42 -0800 | [diff] [blame] | 589 | err = isci_host_init(ihost); |
Dan Williams | 6f231dd | 2011-07-02 22:56:22 -0700 | [diff] [blame] | 590 | if (err) |
| 591 | goto err_shost; |
| 592 | |
Dan Williams | abec912 | 2012-02-15 13:58:42 -0800 | [diff] [blame] | 593 | SHOST_TO_SAS_HA(shost) = &ihost->sas_ha; |
| 594 | ihost->sas_ha.core.shost = shost; |
Dan Williams | 6f231dd | 2011-07-02 22:56:22 -0700 | [diff] [blame] | 595 | shost->transportt = isci_transport_template; |
| 596 | |
| 597 | shost->max_id = ~0; |
| 598 | shost->max_lun = ~0; |
| 599 | shost->max_cmd_len = MAX_COMMAND_SIZE; |
| 600 | |
| 601 | err = scsi_add_host(shost, &pdev->dev); |
| 602 | if (err) |
| 603 | goto err_shost; |
| 604 | |
Dan Williams | abec912 | 2012-02-15 13:58:42 -0800 | [diff] [blame] | 605 | err = isci_register_sas_ha(ihost); |
Dan Williams | 6f231dd | 2011-07-02 22:56:22 -0700 | [diff] [blame] | 606 | if (err) |
| 607 | goto err_shost_remove; |
| 608 | |
Dan Williams | abec912 | 2012-02-15 13:58:42 -0800 | [diff] [blame] | 609 | return ihost; |
Dan Williams | 6f231dd | 2011-07-02 22:56:22 -0700 | [diff] [blame] | 610 | |
| 611 | err_shost_remove: |
| 612 | scsi_remove_host(shost); |
| 613 | err_shost: |
| 614 | scsi_host_put(shost); |
| 615 | |
| 616 | return NULL; |
| 617 | } |
| 618 | |
Greg Kroah-Hartman | 6f03979 | 2012-12-21 13:08:55 -0800 | [diff] [blame] | 619 | static int isci_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id) |
Dan Williams | 6f231dd | 2011-07-02 22:56:22 -0700 | [diff] [blame] | 620 | { |
| 621 | struct isci_pci_info *pci_info; |
| 622 | int err, i; |
| 623 | struct isci_host *isci_host; |
Dave Jiang | 858d4aa | 2011-02-22 01:27:03 -0800 | [diff] [blame] | 624 | const struct firmware *fw = NULL; |
Dan Williams | d37ee7e | 2011-04-26 13:19:53 -0700 | [diff] [blame] | 625 | struct isci_orom *orom = NULL; |
Dan Williams | 4711ba1 | 2011-03-11 10:43:57 -0800 | [diff] [blame] | 626 | char *source = "(platform)"; |
Dan Williams | 6f231dd | 2011-07-02 22:56:22 -0700 | [diff] [blame] | 627 | |
Dan Williams | dc00c8b | 2011-07-01 11:41:21 -0700 | [diff] [blame] | 628 | dev_info(&pdev->dev, "driver configured for rev: %d silicon\n", |
| 629 | pdev->revision); |
Dan Williams | 6f231dd | 2011-07-02 22:56:22 -0700 | [diff] [blame] | 630 | |
| 631 | pci_info = devm_kzalloc(&pdev->dev, sizeof(*pci_info), GFP_KERNEL); |
| 632 | if (!pci_info) |
| 633 | return -ENOMEM; |
| 634 | pci_set_drvdata(pdev, pci_info); |
| 635 | |
Dave Jiang | 8db37aa | 2011-02-23 00:02:24 -0800 | [diff] [blame] | 636 | if (efi_enabled) |
| 637 | orom = isci_get_efi_var(pdev); |
Dan Williams | d37ee7e | 2011-04-26 13:19:53 -0700 | [diff] [blame] | 638 | |
| 639 | if (!orom) |
Dan Williams | d044af1 | 2011-03-08 09:52:49 -0800 | [diff] [blame] | 640 | orom = isci_request_oprom(pdev); |
| 641 | |
Dan Williams | fc25f79 | 2012-04-30 11:57:44 -0700 | [diff] [blame] | 642 | for (i = 0; orom && i < num_controllers(pdev); i++) { |
Dave Jiang | 594e566 | 2012-01-04 01:32:44 -0800 | [diff] [blame] | 643 | if (sci_oem_parameters_validate(&orom->ctrl[i], |
| 644 | orom->hdr.version)) { |
Dan Williams | 2d70de5 | 2011-04-20 12:57:08 -0700 | [diff] [blame] | 645 | dev_warn(&pdev->dev, |
| 646 | "[%d]: invalid oem parameters detected, falling back to firmware\n", i); |
Dan Williams | 2d70de5 | 2011-04-20 12:57:08 -0700 | [diff] [blame] | 647 | orom = NULL; |
| 648 | break; |
| 649 | } |
| 650 | } |
| 651 | |
Dan Williams | d044af1 | 2011-03-08 09:52:49 -0800 | [diff] [blame] | 652 | if (!orom) { |
Dan Williams | 4711ba1 | 2011-03-11 10:43:57 -0800 | [diff] [blame] | 653 | source = "(firmware)"; |
Dan Williams | d044af1 | 2011-03-08 09:52:49 -0800 | [diff] [blame] | 654 | orom = isci_request_firmware(pdev, fw); |
| 655 | if (!orom) { |
| 656 | /* TODO convert this to WARN_TAINT_ONCE once the |
| 657 | * orom/efi parameter support is widely available |
| 658 | */ |
| 659 | dev_warn(&pdev->dev, |
| 660 | "Loading user firmware failed, using default " |
| 661 | "values\n"); |
| 662 | dev_warn(&pdev->dev, |
| 663 | "Default OEM configuration being used: 4 " |
| 664 | "narrow ports, and default SAS Addresses\n"); |
Dave Jiang | 858d4aa | 2011-02-22 01:27:03 -0800 | [diff] [blame] | 665 | } |
Dave Jiang | 858d4aa | 2011-02-22 01:27:03 -0800 | [diff] [blame] | 666 | } |
| 667 | |
Dan Williams | d044af1 | 2011-03-08 09:52:49 -0800 | [diff] [blame] | 668 | if (orom) |
Dan Williams | 3b67c1f | 2011-03-08 09:53:51 -0800 | [diff] [blame] | 669 | dev_info(&pdev->dev, |
Dan Williams | 4711ba1 | 2011-03-11 10:43:57 -0800 | [diff] [blame] | 670 | "OEM SAS parameters (version: %u.%u) loaded %s\n", |
Dan Williams | 3b67c1f | 2011-03-08 09:53:51 -0800 | [diff] [blame] | 671 | (orom->hdr.version & 0xf0) >> 4, |
Dan Williams | 4711ba1 | 2011-03-11 10:43:57 -0800 | [diff] [blame] | 672 | (orom->hdr.version & 0xf), source); |
Dan Williams | 3b67c1f | 2011-03-08 09:53:51 -0800 | [diff] [blame] | 673 | |
Dan Williams | d044af1 | 2011-03-08 09:52:49 -0800 | [diff] [blame] | 674 | pci_info->orom = orom; |
| 675 | |
Dan Williams | 6f231dd | 2011-07-02 22:56:22 -0700 | [diff] [blame] | 676 | err = isci_pci_init(pdev); |
| 677 | if (err) |
| 678 | return err; |
| 679 | |
| 680 | for (i = 0; i < num_controllers(pdev); i++) { |
| 681 | struct isci_host *h = isci_host_alloc(pdev, i); |
| 682 | |
| 683 | if (!h) { |
| 684 | err = -ENOMEM; |
| 685 | goto err_host_alloc; |
| 686 | } |
Dan Williams | b329aff | 2011-03-07 16:02:25 -0800 | [diff] [blame] | 687 | pci_info->hosts[i] = h; |
Dave Jiang | 3d2d752 | 2012-02-10 01:18:34 -0800 | [diff] [blame] | 688 | |
| 689 | /* turn on DIF support */ |
Dan Williams | d1dc5e2 | 2012-02-25 14:29:49 -0800 | [diff] [blame] | 690 | scsi_host_set_prot(to_shost(h), |
Dave Jiang | 3d2d752 | 2012-02-10 01:18:34 -0800 | [diff] [blame] | 691 | SHOST_DIF_TYPE1_PROTECTION | |
| 692 | SHOST_DIF_TYPE2_PROTECTION | |
| 693 | SHOST_DIF_TYPE3_PROTECTION); |
Dan Williams | d1dc5e2 | 2012-02-25 14:29:49 -0800 | [diff] [blame] | 694 | scsi_host_set_guard(to_shost(h), SHOST_DIX_GUARD_CRC); |
Dan Williams | 6f231dd | 2011-07-02 22:56:22 -0700 | [diff] [blame] | 695 | } |
| 696 | |
| 697 | err = isci_setup_interrupts(pdev); |
| 698 | if (err) |
| 699 | goto err_host_alloc; |
| 700 | |
Dan Williams | b329aff | 2011-03-07 16:02:25 -0800 | [diff] [blame] | 701 | for_each_isci_host(i, isci_host, pdev) |
Dan Williams | d1dc5e2 | 2012-02-25 14:29:49 -0800 | [diff] [blame] | 702 | scsi_scan_host(to_shost(isci_host)); |
Dan Williams | 6f231dd | 2011-07-02 22:56:22 -0700 | [diff] [blame] | 703 | |
| 704 | return 0; |
| 705 | |
| 706 | err_host_alloc: |
Dan Williams | b329aff | 2011-03-07 16:02:25 -0800 | [diff] [blame] | 707 | for_each_isci_host(i, isci_host, pdev) |
Dan Williams | 34cad85 | 2011-03-10 00:01:43 -0800 | [diff] [blame] | 708 | isci_unregister(isci_host); |
Dan Williams | 6f231dd | 2011-07-02 22:56:22 -0700 | [diff] [blame] | 709 | return err; |
| 710 | } |
| 711 | |
Greg Kroah-Hartman | 6f03979 | 2012-12-21 13:08:55 -0800 | [diff] [blame] | 712 | static void isci_pci_remove(struct pci_dev *pdev) |
Dan Williams | 6f231dd | 2011-07-02 22:56:22 -0700 | [diff] [blame] | 713 | { |
Dan Williams | d9dcb4b | 2011-06-30 17:38:32 -0700 | [diff] [blame] | 714 | struct isci_host *ihost; |
Dan Williams | b329aff | 2011-03-07 16:02:25 -0800 | [diff] [blame] | 715 | int i; |
Dan Williams | 6f231dd | 2011-07-02 22:56:22 -0700 | [diff] [blame] | 716 | |
Dan Williams | d9dcb4b | 2011-06-30 17:38:32 -0700 | [diff] [blame] | 717 | for_each_isci_host(i, ihost, pdev) { |
Andrzej Jakowski | 13de2c5 | 2012-02-10 01:18:54 -0800 | [diff] [blame] | 718 | wait_for_start(ihost); |
Dan Williams | d9dcb4b | 2011-06-30 17:38:32 -0700 | [diff] [blame] | 719 | isci_unregister(ihost); |
| 720 | isci_host_deinit(ihost); |
Dan Williams | 6f231dd | 2011-07-02 22:56:22 -0700 | [diff] [blame] | 721 | } |
| 722 | } |
| 723 | |
Artur Wojcik | e468dc1 | 2012-06-21 23:41:56 -0700 | [diff] [blame] | 724 | #ifdef CONFIG_PM |
| 725 | static int isci_suspend(struct device *dev) |
| 726 | { |
| 727 | struct pci_dev *pdev = to_pci_dev(dev); |
| 728 | struct isci_host *ihost; |
| 729 | int i; |
| 730 | |
| 731 | for_each_isci_host(i, ihost, pdev) { |
| 732 | sas_suspend_ha(&ihost->sas_ha); |
| 733 | isci_host_deinit(ihost); |
| 734 | } |
| 735 | |
| 736 | pci_save_state(pdev); |
| 737 | pci_disable_device(pdev); |
| 738 | pci_set_power_state(pdev, PCI_D3hot); |
| 739 | |
| 740 | return 0; |
| 741 | } |
| 742 | |
| 743 | static int isci_resume(struct device *dev) |
| 744 | { |
| 745 | struct pci_dev *pdev = to_pci_dev(dev); |
| 746 | struct isci_host *ihost; |
| 747 | int rc, i; |
| 748 | |
| 749 | pci_set_power_state(pdev, PCI_D0); |
| 750 | pci_restore_state(pdev); |
| 751 | |
| 752 | rc = pcim_enable_device(pdev); |
| 753 | if (rc) { |
| 754 | dev_err(&pdev->dev, |
| 755 | "enabling device failure after resume(%d)\n", rc); |
| 756 | return rc; |
| 757 | } |
| 758 | |
| 759 | pci_set_master(pdev); |
| 760 | |
| 761 | for_each_isci_host(i, ihost, pdev) { |
| 762 | sas_prep_resume_ha(&ihost->sas_ha); |
| 763 | |
| 764 | isci_host_init(ihost); |
| 765 | isci_host_start(ihost->sas_ha.core.shost); |
| 766 | wait_for_start(ihost); |
| 767 | |
| 768 | sas_resume_ha(&ihost->sas_ha); |
| 769 | } |
| 770 | |
| 771 | return 0; |
| 772 | } |
| 773 | |
| 774 | static SIMPLE_DEV_PM_OPS(isci_pm_ops, isci_suspend, isci_resume); |
| 775 | #endif |
| 776 | |
Dan Williams | f942f32 | 2011-03-26 16:30:06 -0700 | [diff] [blame] | 777 | static struct pci_driver isci_pci_driver = { |
| 778 | .name = DRV_NAME, |
| 779 | .id_table = isci_id_table, |
| 780 | .probe = isci_pci_probe, |
Greg Kroah-Hartman | 6f03979 | 2012-12-21 13:08:55 -0800 | [diff] [blame] | 781 | .remove = isci_pci_remove, |
Artur Wojcik | e468dc1 | 2012-06-21 23:41:56 -0700 | [diff] [blame] | 782 | #ifdef CONFIG_PM |
| 783 | .driver.pm = &isci_pm_ops, |
| 784 | #endif |
Dan Williams | f942f32 | 2011-03-26 16:30:06 -0700 | [diff] [blame] | 785 | }; |
| 786 | |
Dan Williams | 6f231dd | 2011-07-02 22:56:22 -0700 | [diff] [blame] | 787 | static __init int isci_init(void) |
| 788 | { |
Dan Williams | d9c3739 | 2011-03-03 17:59:32 -0800 | [diff] [blame] | 789 | int err; |
Dan Williams | 6f231dd | 2011-07-02 22:56:22 -0700 | [diff] [blame] | 790 | |
Dan Williams | 98e2a5a | 2011-07-29 17:17:21 -0700 | [diff] [blame] | 791 | pr_info("%s: Intel(R) C600 SAS Controller Driver - version %s\n", |
| 792 | DRV_NAME, DRV_VERSION); |
Dan Williams | 6f231dd | 2011-07-02 22:56:22 -0700 | [diff] [blame] | 793 | |
Dan Williams | 6f231dd | 2011-07-02 22:56:22 -0700 | [diff] [blame] | 794 | isci_transport_template = sas_domain_attach_transport(&isci_transport_ops); |
| 795 | if (!isci_transport_template) |
Dan Williams | d9c3739 | 2011-03-03 17:59:32 -0800 | [diff] [blame] | 796 | return -ENOMEM; |
Dan Williams | 6f231dd | 2011-07-02 22:56:22 -0700 | [diff] [blame] | 797 | |
| 798 | err = pci_register_driver(&isci_pci_driver); |
| 799 | if (err) |
Dan Williams | d9c3739 | 2011-03-03 17:59:32 -0800 | [diff] [blame] | 800 | sas_release_transport(isci_transport_template); |
Dan Williams | 6f231dd | 2011-07-02 22:56:22 -0700 | [diff] [blame] | 801 | |
| 802 | return err; |
| 803 | } |
| 804 | |
| 805 | static __exit void isci_exit(void) |
| 806 | { |
| 807 | pci_unregister_driver(&isci_pci_driver); |
| 808 | sas_release_transport(isci_transport_template); |
Dan Williams | 6f231dd | 2011-07-02 22:56:22 -0700 | [diff] [blame] | 809 | } |
| 810 | |
| 811 | MODULE_LICENSE("Dual BSD/GPL"); |
| 812 | MODULE_FIRMWARE(ISCI_FW_NAME); |
| 813 | module_init(isci_init); |
| 814 | module_exit(isci_exit); |