2 * Linux MegaRAID driver for SAS based RAID controllers
4 * Copyright (c) 2003-2013 LSI Corporation
5 * Copyright (c) 2013-2014 Avago Technologies
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License
9 * as published by the Free Software Foundation; either version 2
10 * of the License, or (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program. If not, see <http://www.gnu.org/licenses/>.
20 * Authors: Avago Technologies
25 * Kashyap Desai <kashyap.desai@avagotech.com>
26 * Sumit Saxena <sumit.saxena@avagotech.com>
28 * Send feedback to: megaraidlinux.pdl@avagotech.com
30 * Mail to: Avago Technologies, 350 West Trimble Road, Building 90,
31 * San Jose, California 95131
34 #include <linux/kernel.h>
35 #include <linux/types.h>
36 #include <linux/pci.h>
37 #include <linux/list.h>
38 #include <linux/moduleparam.h>
39 #include <linux/module.h>
40 #include <linux/spinlock.h>
41 #include <linux/interrupt.h>
42 #include <linux/delay.h>
43 #include <linux/uio.h>
44 #include <linux/slab.h>
45 #include <linux/uaccess.h>
46 #include <asm/unaligned.h>
48 #include <linux/compat.h>
49 #include <linux/blkdev.h>
50 #include <linux/mutex.h>
51 #include <linux/poll.h>
53 #include <scsi/scsi.h>
54 #include <scsi/scsi_cmnd.h>
55 #include <scsi/scsi_device.h>
56 #include <scsi/scsi_host.h>
57 #include <scsi/scsi_tcq.h>
58 #include "megaraid_sas_fusion.h"
59 #include "megaraid_sas.h"
62 * Number of sectors per IO command
63 * Will be set in megasas_init_mfi if user does not provide
65 static unsigned int max_sectors
;
66 module_param_named(max_sectors
, max_sectors
, int, 0);
67 MODULE_PARM_DESC(max_sectors
,
68 "Maximum number of sectors per IO command");
70 static int msix_disable
;
71 module_param(msix_disable
, int, S_IRUGO
);
72 MODULE_PARM_DESC(msix_disable
, "Disable MSI-X interrupt handling. Default: 0");
74 static unsigned int msix_vectors
;
75 module_param(msix_vectors
, int, S_IRUGO
);
76 MODULE_PARM_DESC(msix_vectors
, "MSI-X max vector count. Default: Set by FW");
78 static int allow_vf_ioctls
;
79 module_param(allow_vf_ioctls
, int, S_IRUGO
);
80 MODULE_PARM_DESC(allow_vf_ioctls
, "Allow ioctls in SR-IOV VF mode. Default: 0");
82 static unsigned int throttlequeuedepth
= MEGASAS_THROTTLE_QUEUE_DEPTH
;
83 module_param(throttlequeuedepth
, int, S_IRUGO
);
84 MODULE_PARM_DESC(throttlequeuedepth
,
85 "Adapter queue depth when throttled due to I/O timeout. Default: 16");
87 unsigned int resetwaittime
= MEGASAS_RESET_WAIT_TIME
;
88 module_param(resetwaittime
, int, S_IRUGO
);
89 MODULE_PARM_DESC(resetwaittime
, "Wait time in seconds after I/O timeout "
90 "before resetting adapter. Default: 180");
92 int smp_affinity_enable
= 1;
93 module_param(smp_affinity_enable
, int, S_IRUGO
);
94 MODULE_PARM_DESC(smp_affinity_enable
, "SMP affinity feature enable/disbale Default: enable(1)");
97 module_param(rdpq_enable
, int, S_IRUGO
);
98 MODULE_PARM_DESC(rdpq_enable
, " Allocate reply queue in chunks for large queue depth enable/disable Default: disable(0)");
100 unsigned int dual_qdepth_disable
;
101 module_param(dual_qdepth_disable
, int, S_IRUGO
);
102 MODULE_PARM_DESC(dual_qdepth_disable
, "Disable dual queue depth feature. Default: 0");
104 unsigned int scmd_timeout
= MEGASAS_DEFAULT_CMD_TIMEOUT
;
105 module_param(scmd_timeout
, int, S_IRUGO
);
106 MODULE_PARM_DESC(scmd_timeout
, "scsi command timeout (10-90s), default 90s. See megasas_reset_timer.");
108 MODULE_LICENSE("GPL");
109 MODULE_VERSION(MEGASAS_VERSION
);
110 MODULE_AUTHOR("megaraidlinux.pdl@avagotech.com");
111 MODULE_DESCRIPTION("Avago MegaRAID SAS Driver");
113 int megasas_transition_to_ready(struct megasas_instance
*instance
, int ocr
);
114 static int megasas_get_pd_list(struct megasas_instance
*instance
);
115 static int megasas_ld_list_query(struct megasas_instance
*instance
,
117 static int megasas_issue_init_mfi(struct megasas_instance
*instance
);
118 static int megasas_register_aen(struct megasas_instance
*instance
,
119 u32 seq_num
, u32 class_locale_word
);
120 static void megasas_get_pd_info(struct megasas_instance
*instance
,
121 struct scsi_device
*sdev
);
122 static int megasas_get_target_prop(struct megasas_instance
*instance
,
123 struct scsi_device
*sdev
);
125 * PCI ID table for all supported controllers
127 static struct pci_device_id megasas_pci_table
[] = {
129 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC
, PCI_DEVICE_ID_LSI_SAS1064R
)},
131 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC
, PCI_DEVICE_ID_LSI_SAS1078R
)},
133 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC
, PCI_DEVICE_ID_LSI_SAS1078DE
)},
135 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC
, PCI_DEVICE_ID_LSI_SAS1078GEN2
)},
137 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC
, PCI_DEVICE_ID_LSI_SAS0079GEN2
)},
139 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC
, PCI_DEVICE_ID_LSI_SAS0073SKINNY
)},
141 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC
, PCI_DEVICE_ID_LSI_SAS0071SKINNY
)},
143 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC
, PCI_DEVICE_ID_LSI_VERDE_ZCR
)},
144 /* xscale IOP, vega */
145 {PCI_DEVICE(PCI_VENDOR_ID_DELL
, PCI_DEVICE_ID_DELL_PERC5
)},
147 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC
, PCI_DEVICE_ID_LSI_FUSION
)},
149 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC
, PCI_DEVICE_ID_LSI_PLASMA
)},
151 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC
, PCI_DEVICE_ID_LSI_INVADER
)},
153 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC
, PCI_DEVICE_ID_LSI_FURY
)},
155 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC
, PCI_DEVICE_ID_LSI_INTRUDER
)},
157 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC
, PCI_DEVICE_ID_LSI_INTRUDER_24
)},
158 /* Intruder 24 port*/
159 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC
, PCI_DEVICE_ID_LSI_CUTLASS_52
)},
160 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC
, PCI_DEVICE_ID_LSI_CUTLASS_53
)},
162 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC
, PCI_DEVICE_ID_LSI_VENTURA
)},
163 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC
, PCI_DEVICE_ID_LSI_HARPOON
)},
164 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC
, PCI_DEVICE_ID_LSI_TOMCAT
)},
165 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC
, PCI_DEVICE_ID_LSI_VENTURA_4PORT
)},
166 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC
, PCI_DEVICE_ID_LSI_CRUSADER_4PORT
)},
170 MODULE_DEVICE_TABLE(pci
, megasas_pci_table
);
172 static int megasas_mgmt_majorno
;
173 struct megasas_mgmt_info megasas_mgmt_info
;
174 static struct fasync_struct
*megasas_async_queue
;
175 static DEFINE_MUTEX(megasas_async_queue_mutex
);
177 static int megasas_poll_wait_aen
;
178 static DECLARE_WAIT_QUEUE_HEAD(megasas_poll_wait
);
179 static u32 support_poll_for_event
;
181 static u32 support_device_change
;
183 /* define lock for aen poll */
184 spinlock_t poll_aen_lock
;
187 megasas_complete_cmd(struct megasas_instance
*instance
, struct megasas_cmd
*cmd
,
190 megasas_read_fw_status_reg_gen2(struct megasas_register_set __iomem
*regs
);
192 megasas_adp_reset_gen2(struct megasas_instance
*instance
,
193 struct megasas_register_set __iomem
*reg_set
);
194 static irqreturn_t
megasas_isr(int irq
, void *devp
);
196 megasas_init_adapter_mfi(struct megasas_instance
*instance
);
198 megasas_build_and_issue_cmd(struct megasas_instance
*instance
,
199 struct scsi_cmnd
*scmd
);
200 static void megasas_complete_cmd_dpc(unsigned long instance_addr
);
202 wait_and_poll(struct megasas_instance
*instance
, struct megasas_cmd
*cmd
,
204 void megasas_fusion_ocr_wq(struct work_struct
*work
);
205 static int megasas_get_ld_vf_affiliation(struct megasas_instance
*instance
,
209 megasas_issue_dcmd(struct megasas_instance
*instance
, struct megasas_cmd
*cmd
)
211 instance
->instancet
->fire_cmd(instance
,
212 cmd
->frame_phys_addr
, 0, instance
->reg_set
);
217 * megasas_get_cmd - Get a command from the free pool
218 * @instance: Adapter soft state
220 * Returns a free command from the pool
222 struct megasas_cmd
*megasas_get_cmd(struct megasas_instance
226 struct megasas_cmd
*cmd
= NULL
;
228 spin_lock_irqsave(&instance
->mfi_pool_lock
, flags
);
230 if (!list_empty(&instance
->cmd_pool
)) {
231 cmd
= list_entry((&instance
->cmd_pool
)->next
,
232 struct megasas_cmd
, list
);
233 list_del_init(&cmd
->list
);
235 dev_err(&instance
->pdev
->dev
, "Command pool empty!\n");
238 spin_unlock_irqrestore(&instance
->mfi_pool_lock
, flags
);
243 * megasas_return_cmd - Return a cmd to free command pool
244 * @instance: Adapter soft state
245 * @cmd: Command packet to be returned to free command pool
248 megasas_return_cmd(struct megasas_instance
*instance
, struct megasas_cmd
*cmd
)
252 struct megasas_cmd_fusion
*cmd_fusion
;
253 struct fusion_context
*fusion
= instance
->ctrl_context
;
255 /* This flag is used only for fusion adapter.
256 * Wait for Interrupt for Polled mode DCMD
258 if (cmd
->flags
& DRV_DCMD_POLLED_MODE
)
261 spin_lock_irqsave(&instance
->mfi_pool_lock
, flags
);
264 blk_tags
= instance
->max_scsi_cmds
+ cmd
->index
;
265 cmd_fusion
= fusion
->cmd_list
[blk_tags
];
266 megasas_return_cmd_fusion(instance
, cmd_fusion
);
269 cmd
->frame_count
= 0;
271 memset(cmd
->frame
, 0, instance
->mfi_frame_size
);
272 cmd
->frame
->io
.context
= cpu_to_le32(cmd
->index
);
273 if (!fusion
&& reset_devices
)
274 cmd
->frame
->hdr
.cmd
= MFI_CMD_INVALID
;
275 list_add(&cmd
->list
, (&instance
->cmd_pool
)->next
);
277 spin_unlock_irqrestore(&instance
->mfi_pool_lock
, flags
);
282 format_timestamp(uint32_t timestamp
)
284 static char buffer
[32];
286 if ((timestamp
& 0xff000000) == 0xff000000)
287 snprintf(buffer
, sizeof(buffer
), "boot + %us", timestamp
&
290 snprintf(buffer
, sizeof(buffer
), "%us", timestamp
);
295 format_class(int8_t class)
297 static char buffer
[6];
300 case MFI_EVT_CLASS_DEBUG
:
302 case MFI_EVT_CLASS_PROGRESS
:
304 case MFI_EVT_CLASS_INFO
:
306 case MFI_EVT_CLASS_WARNING
:
308 case MFI_EVT_CLASS_CRITICAL
:
310 case MFI_EVT_CLASS_FATAL
:
312 case MFI_EVT_CLASS_DEAD
:
315 snprintf(buffer
, sizeof(buffer
), "%d", class);
321 * megasas_decode_evt: Decode FW AEN event and print critical event
323 * @instance: Adapter soft state
326 megasas_decode_evt(struct megasas_instance
*instance
)
328 struct megasas_evt_detail
*evt_detail
= instance
->evt_detail
;
329 union megasas_evt_class_locale class_locale
;
330 class_locale
.word
= le32_to_cpu(evt_detail
->cl
.word
);
332 if (class_locale
.members
.class >= MFI_EVT_CLASS_CRITICAL
)
333 dev_info(&instance
->pdev
->dev
, "%d (%s/0x%04x/%s) - %s\n",
334 le32_to_cpu(evt_detail
->seq_num
),
335 format_timestamp(le32_to_cpu(evt_detail
->time_stamp
)),
336 (class_locale
.members
.locale
),
337 format_class(class_locale
.members
.class),
338 evt_detail
->description
);
342 * The following functions are defined for xscale
343 * (deviceid : 1064R, PERC5) controllers
347 * megasas_enable_intr_xscale - Enables interrupts
348 * @regs: MFI register set
351 megasas_enable_intr_xscale(struct megasas_instance
*instance
)
353 struct megasas_register_set __iomem
*regs
;
355 regs
= instance
->reg_set
;
356 writel(0, &(regs
)->outbound_intr_mask
);
358 /* Dummy readl to force pci flush */
359 readl(®s
->outbound_intr_mask
);
363 * megasas_disable_intr_xscale -Disables interrupt
364 * @regs: MFI register set
367 megasas_disable_intr_xscale(struct megasas_instance
*instance
)
369 struct megasas_register_set __iomem
*regs
;
372 regs
= instance
->reg_set
;
373 writel(mask
, ®s
->outbound_intr_mask
);
374 /* Dummy readl to force pci flush */
375 readl(®s
->outbound_intr_mask
);
379 * megasas_read_fw_status_reg_xscale - returns the current FW status value
380 * @regs: MFI register set
383 megasas_read_fw_status_reg_xscale(struct megasas_register_set __iomem
* regs
)
385 return readl(&(regs
)->outbound_msg_0
);
388 * megasas_clear_interrupt_xscale - Check & clear interrupt
389 * @regs: MFI register set
392 megasas_clear_intr_xscale(struct megasas_register_set __iomem
* regs
)
398 * Check if it is our interrupt
400 status
= readl(®s
->outbound_intr_status
);
402 if (status
& MFI_OB_INTR_STATUS_MASK
)
403 mfiStatus
= MFI_INTR_FLAG_REPLY_MESSAGE
;
404 if (status
& MFI_XSCALE_OMR0_CHANGE_INTERRUPT
)
405 mfiStatus
|= MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE
;
408 * Clear the interrupt by writing back the same value
411 writel(status
, ®s
->outbound_intr_status
);
413 /* Dummy readl to force pci flush */
414 readl(®s
->outbound_intr_status
);
420 * megasas_fire_cmd_xscale - Sends command to the FW
421 * @frame_phys_addr : Physical address of cmd
422 * @frame_count : Number of frames for the command
423 * @regs : MFI register set
426 megasas_fire_cmd_xscale(struct megasas_instance
*instance
,
427 dma_addr_t frame_phys_addr
,
429 struct megasas_register_set __iomem
*regs
)
433 spin_lock_irqsave(&instance
->hba_lock
, flags
);
434 writel((frame_phys_addr
>> 3)|(frame_count
),
435 &(regs
)->inbound_queue_port
);
436 spin_unlock_irqrestore(&instance
->hba_lock
, flags
);
440 * megasas_adp_reset_xscale - For controller reset
441 * @regs: MFI register set
444 megasas_adp_reset_xscale(struct megasas_instance
*instance
,
445 struct megasas_register_set __iomem
*regs
)
450 writel(MFI_ADP_RESET
, ®s
->inbound_doorbell
);
452 for (i
= 0; i
< 3; i
++)
453 msleep(1000); /* sleep for 3 secs */
455 pci_read_config_dword(instance
->pdev
, MFI_1068_PCSR_OFFSET
, &pcidata
);
456 dev_notice(&instance
->pdev
->dev
, "pcidata = %x\n", pcidata
);
458 dev_notice(&instance
->pdev
->dev
, "mfi 1068 offset read=%x\n", pcidata
);
460 pci_write_config_dword(instance
->pdev
,
461 MFI_1068_PCSR_OFFSET
, pcidata
);
463 for (i
= 0; i
< 2; i
++)
464 msleep(1000); /* need to wait 2 secs again */
467 pci_read_config_dword(instance
->pdev
,
468 MFI_1068_FW_HANDSHAKE_OFFSET
, &pcidata
);
469 dev_notice(&instance
->pdev
->dev
, "1068 offset handshake read=%x\n", pcidata
);
470 if ((pcidata
& 0xffff0000) == MFI_1068_FW_READY
) {
471 dev_notice(&instance
->pdev
->dev
, "1068 offset pcidt=%x\n", pcidata
);
473 pci_write_config_dword(instance
->pdev
,
474 MFI_1068_FW_HANDSHAKE_OFFSET
, pcidata
);
481 * megasas_check_reset_xscale - For controller reset check
482 * @regs: MFI register set
485 megasas_check_reset_xscale(struct megasas_instance
*instance
,
486 struct megasas_register_set __iomem
*regs
)
488 if ((atomic_read(&instance
->adprecovery
) != MEGASAS_HBA_OPERATIONAL
) &&
489 (le32_to_cpu(*instance
->consumer
) ==
490 MEGASAS_ADPRESET_INPROG_SIGN
))
495 static struct megasas_instance_template megasas_instance_template_xscale
= {
497 .fire_cmd
= megasas_fire_cmd_xscale
,
498 .enable_intr
= megasas_enable_intr_xscale
,
499 .disable_intr
= megasas_disable_intr_xscale
,
500 .clear_intr
= megasas_clear_intr_xscale
,
501 .read_fw_status_reg
= megasas_read_fw_status_reg_xscale
,
502 .adp_reset
= megasas_adp_reset_xscale
,
503 .check_reset
= megasas_check_reset_xscale
,
504 .service_isr
= megasas_isr
,
505 .tasklet
= megasas_complete_cmd_dpc
,
506 .init_adapter
= megasas_init_adapter_mfi
,
507 .build_and_issue_cmd
= megasas_build_and_issue_cmd
,
508 .issue_dcmd
= megasas_issue_dcmd
,
512 * This is the end of set of functions & definitions specific
513 * to xscale (deviceid : 1064R, PERC5) controllers
517 * The following functions are defined for ppc (deviceid : 0x60)
522 * megasas_enable_intr_ppc - Enables interrupts
523 * @regs: MFI register set
526 megasas_enable_intr_ppc(struct megasas_instance
*instance
)
528 struct megasas_register_set __iomem
*regs
;
530 regs
= instance
->reg_set
;
531 writel(0xFFFFFFFF, &(regs
)->outbound_doorbell_clear
);
533 writel(~0x80000000, &(regs
)->outbound_intr_mask
);
535 /* Dummy readl to force pci flush */
536 readl(®s
->outbound_intr_mask
);
540 * megasas_disable_intr_ppc - Disable interrupt
541 * @regs: MFI register set
544 megasas_disable_intr_ppc(struct megasas_instance
*instance
)
546 struct megasas_register_set __iomem
*regs
;
547 u32 mask
= 0xFFFFFFFF;
549 regs
= instance
->reg_set
;
550 writel(mask
, ®s
->outbound_intr_mask
);
551 /* Dummy readl to force pci flush */
552 readl(®s
->outbound_intr_mask
);
556 * megasas_read_fw_status_reg_ppc - returns the current FW status value
557 * @regs: MFI register set
560 megasas_read_fw_status_reg_ppc(struct megasas_register_set __iomem
* regs
)
562 return readl(&(regs
)->outbound_scratch_pad
);
566 * megasas_clear_interrupt_ppc - Check & clear interrupt
567 * @regs: MFI register set
570 megasas_clear_intr_ppc(struct megasas_register_set __iomem
* regs
)
572 u32 status
, mfiStatus
= 0;
575 * Check if it is our interrupt
577 status
= readl(®s
->outbound_intr_status
);
579 if (status
& MFI_REPLY_1078_MESSAGE_INTERRUPT
)
580 mfiStatus
= MFI_INTR_FLAG_REPLY_MESSAGE
;
582 if (status
& MFI_G2_OUTBOUND_DOORBELL_CHANGE_INTERRUPT
)
583 mfiStatus
|= MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE
;
586 * Clear the interrupt by writing back the same value
588 writel(status
, ®s
->outbound_doorbell_clear
);
590 /* Dummy readl to force pci flush */
591 readl(®s
->outbound_doorbell_clear
);
597 * megasas_fire_cmd_ppc - Sends command to the FW
598 * @frame_phys_addr : Physical address of cmd
599 * @frame_count : Number of frames for the command
600 * @regs : MFI register set
603 megasas_fire_cmd_ppc(struct megasas_instance
*instance
,
604 dma_addr_t frame_phys_addr
,
606 struct megasas_register_set __iomem
*regs
)
610 spin_lock_irqsave(&instance
->hba_lock
, flags
);
611 writel((frame_phys_addr
| (frame_count
<<1))|1,
612 &(regs
)->inbound_queue_port
);
613 spin_unlock_irqrestore(&instance
->hba_lock
, flags
);
617 * megasas_check_reset_ppc - For controller reset check
618 * @regs: MFI register set
621 megasas_check_reset_ppc(struct megasas_instance
*instance
,
622 struct megasas_register_set __iomem
*regs
)
624 if (atomic_read(&instance
->adprecovery
) != MEGASAS_HBA_OPERATIONAL
)
630 static struct megasas_instance_template megasas_instance_template_ppc
= {
632 .fire_cmd
= megasas_fire_cmd_ppc
,
633 .enable_intr
= megasas_enable_intr_ppc
,
634 .disable_intr
= megasas_disable_intr_ppc
,
635 .clear_intr
= megasas_clear_intr_ppc
,
636 .read_fw_status_reg
= megasas_read_fw_status_reg_ppc
,
637 .adp_reset
= megasas_adp_reset_xscale
,
638 .check_reset
= megasas_check_reset_ppc
,
639 .service_isr
= megasas_isr
,
640 .tasklet
= megasas_complete_cmd_dpc
,
641 .init_adapter
= megasas_init_adapter_mfi
,
642 .build_and_issue_cmd
= megasas_build_and_issue_cmd
,
643 .issue_dcmd
= megasas_issue_dcmd
,
647 * megasas_enable_intr_skinny - Enables interrupts
648 * @regs: MFI register set
651 megasas_enable_intr_skinny(struct megasas_instance
*instance
)
653 struct megasas_register_set __iomem
*regs
;
655 regs
= instance
->reg_set
;
656 writel(0xFFFFFFFF, &(regs
)->outbound_intr_mask
);
658 writel(~MFI_SKINNY_ENABLE_INTERRUPT_MASK
, &(regs
)->outbound_intr_mask
);
660 /* Dummy readl to force pci flush */
661 readl(®s
->outbound_intr_mask
);
665 * megasas_disable_intr_skinny - Disables interrupt
666 * @regs: MFI register set
669 megasas_disable_intr_skinny(struct megasas_instance
*instance
)
671 struct megasas_register_set __iomem
*regs
;
672 u32 mask
= 0xFFFFFFFF;
674 regs
= instance
->reg_set
;
675 writel(mask
, ®s
->outbound_intr_mask
);
676 /* Dummy readl to force pci flush */
677 readl(®s
->outbound_intr_mask
);
681 * megasas_read_fw_status_reg_skinny - returns the current FW status value
682 * @regs: MFI register set
685 megasas_read_fw_status_reg_skinny(struct megasas_register_set __iomem
*regs
)
687 return readl(&(regs
)->outbound_scratch_pad
);
691 * megasas_clear_interrupt_skinny - Check & clear interrupt
692 * @regs: MFI register set
695 megasas_clear_intr_skinny(struct megasas_register_set __iomem
*regs
)
701 * Check if it is our interrupt
703 status
= readl(®s
->outbound_intr_status
);
705 if (!(status
& MFI_SKINNY_ENABLE_INTERRUPT_MASK
)) {
710 * Check if it is our interrupt
712 if ((megasas_read_fw_status_reg_skinny(regs
) & MFI_STATE_MASK
) ==
714 mfiStatus
= MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE
;
716 mfiStatus
= MFI_INTR_FLAG_REPLY_MESSAGE
;
719 * Clear the interrupt by writing back the same value
721 writel(status
, ®s
->outbound_intr_status
);
724 * dummy read to flush PCI
726 readl(®s
->outbound_intr_status
);
732 * megasas_fire_cmd_skinny - Sends command to the FW
733 * @frame_phys_addr : Physical address of cmd
734 * @frame_count : Number of frames for the command
735 * @regs : MFI register set
738 megasas_fire_cmd_skinny(struct megasas_instance
*instance
,
739 dma_addr_t frame_phys_addr
,
741 struct megasas_register_set __iomem
*regs
)
745 spin_lock_irqsave(&instance
->hba_lock
, flags
);
746 writel(upper_32_bits(frame_phys_addr
),
747 &(regs
)->inbound_high_queue_port
);
748 writel((lower_32_bits(frame_phys_addr
) | (frame_count
<<1))|1,
749 &(regs
)->inbound_low_queue_port
);
751 spin_unlock_irqrestore(&instance
->hba_lock
, flags
);
755 * megasas_check_reset_skinny - For controller reset check
756 * @regs: MFI register set
759 megasas_check_reset_skinny(struct megasas_instance
*instance
,
760 struct megasas_register_set __iomem
*regs
)
762 if (atomic_read(&instance
->adprecovery
) != MEGASAS_HBA_OPERATIONAL
)
768 static struct megasas_instance_template megasas_instance_template_skinny
= {
770 .fire_cmd
= megasas_fire_cmd_skinny
,
771 .enable_intr
= megasas_enable_intr_skinny
,
772 .disable_intr
= megasas_disable_intr_skinny
,
773 .clear_intr
= megasas_clear_intr_skinny
,
774 .read_fw_status_reg
= megasas_read_fw_status_reg_skinny
,
775 .adp_reset
= megasas_adp_reset_gen2
,
776 .check_reset
= megasas_check_reset_skinny
,
777 .service_isr
= megasas_isr
,
778 .tasklet
= megasas_complete_cmd_dpc
,
779 .init_adapter
= megasas_init_adapter_mfi
,
780 .build_and_issue_cmd
= megasas_build_and_issue_cmd
,
781 .issue_dcmd
= megasas_issue_dcmd
,
786 * The following functions are defined for gen2 (deviceid : 0x78 0x79)
791 * megasas_enable_intr_gen2 - Enables interrupts
792 * @regs: MFI register set
795 megasas_enable_intr_gen2(struct megasas_instance
*instance
)
797 struct megasas_register_set __iomem
*regs
;
799 regs
= instance
->reg_set
;
800 writel(0xFFFFFFFF, &(regs
)->outbound_doorbell_clear
);
802 /* write ~0x00000005 (4 & 1) to the intr mask*/
803 writel(~MFI_GEN2_ENABLE_INTERRUPT_MASK
, &(regs
)->outbound_intr_mask
);
805 /* Dummy readl to force pci flush */
806 readl(®s
->outbound_intr_mask
);
810 * megasas_disable_intr_gen2 - Disables interrupt
811 * @regs: MFI register set
814 megasas_disable_intr_gen2(struct megasas_instance
*instance
)
816 struct megasas_register_set __iomem
*regs
;
817 u32 mask
= 0xFFFFFFFF;
819 regs
= instance
->reg_set
;
820 writel(mask
, ®s
->outbound_intr_mask
);
821 /* Dummy readl to force pci flush */
822 readl(®s
->outbound_intr_mask
);
826 * megasas_read_fw_status_reg_gen2 - returns the current FW status value
827 * @regs: MFI register set
830 megasas_read_fw_status_reg_gen2(struct megasas_register_set __iomem
*regs
)
832 return readl(&(regs
)->outbound_scratch_pad
);
836 * megasas_clear_interrupt_gen2 - Check & clear interrupt
837 * @regs: MFI register set
840 megasas_clear_intr_gen2(struct megasas_register_set __iomem
*regs
)
846 * Check if it is our interrupt
848 status
= readl(®s
->outbound_intr_status
);
850 if (status
& MFI_INTR_FLAG_REPLY_MESSAGE
) {
851 mfiStatus
= MFI_INTR_FLAG_REPLY_MESSAGE
;
853 if (status
& MFI_G2_OUTBOUND_DOORBELL_CHANGE_INTERRUPT
) {
854 mfiStatus
|= MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE
;
858 * Clear the interrupt by writing back the same value
861 writel(status
, ®s
->outbound_doorbell_clear
);
863 /* Dummy readl to force pci flush */
864 readl(®s
->outbound_intr_status
);
869 * megasas_fire_cmd_gen2 - Sends command to the FW
870 * @frame_phys_addr : Physical address of cmd
871 * @frame_count : Number of frames for the command
872 * @regs : MFI register set
875 megasas_fire_cmd_gen2(struct megasas_instance
*instance
,
876 dma_addr_t frame_phys_addr
,
878 struct megasas_register_set __iomem
*regs
)
882 spin_lock_irqsave(&instance
->hba_lock
, flags
);
883 writel((frame_phys_addr
| (frame_count
<<1))|1,
884 &(regs
)->inbound_queue_port
);
885 spin_unlock_irqrestore(&instance
->hba_lock
, flags
);
889 * megasas_adp_reset_gen2 - For controller reset
890 * @regs: MFI register set
893 megasas_adp_reset_gen2(struct megasas_instance
*instance
,
894 struct megasas_register_set __iomem
*reg_set
)
898 u32 __iomem
*seq_offset
= ®_set
->seq_offset
;
899 u32 __iomem
*hostdiag_offset
= ®_set
->host_diag
;
901 if (instance
->instancet
== &megasas_instance_template_skinny
) {
902 seq_offset
= ®_set
->fusion_seq_offset
;
903 hostdiag_offset
= ®_set
->fusion_host_diag
;
906 writel(0, seq_offset
);
907 writel(4, seq_offset
);
908 writel(0xb, seq_offset
);
909 writel(2, seq_offset
);
910 writel(7, seq_offset
);
911 writel(0xd, seq_offset
);
915 HostDiag
= (u32
)readl(hostdiag_offset
);
917 while (!(HostDiag
& DIAG_WRITE_ENABLE
)) {
919 HostDiag
= (u32
)readl(hostdiag_offset
);
920 dev_notice(&instance
->pdev
->dev
, "RESETGEN2: retry=%x, hostdiag=%x\n",
928 dev_notice(&instance
->pdev
->dev
, "ADP_RESET_GEN2: HostDiag=%x\n", HostDiag
);
930 writel((HostDiag
| DIAG_RESET_ADAPTER
), hostdiag_offset
);
934 HostDiag
= (u32
)readl(hostdiag_offset
);
935 while (HostDiag
& DIAG_RESET_ADAPTER
) {
937 HostDiag
= (u32
)readl(hostdiag_offset
);
938 dev_notice(&instance
->pdev
->dev
, "RESET_GEN2: retry=%x, hostdiag=%x\n",
949 * megasas_check_reset_gen2 - For controller reset check
950 * @regs: MFI register set
953 megasas_check_reset_gen2(struct megasas_instance
*instance
,
954 struct megasas_register_set __iomem
*regs
)
956 if (atomic_read(&instance
->adprecovery
) != MEGASAS_HBA_OPERATIONAL
)
962 static struct megasas_instance_template megasas_instance_template_gen2
= {
964 .fire_cmd
= megasas_fire_cmd_gen2
,
965 .enable_intr
= megasas_enable_intr_gen2
,
966 .disable_intr
= megasas_disable_intr_gen2
,
967 .clear_intr
= megasas_clear_intr_gen2
,
968 .read_fw_status_reg
= megasas_read_fw_status_reg_gen2
,
969 .adp_reset
= megasas_adp_reset_gen2
,
970 .check_reset
= megasas_check_reset_gen2
,
971 .service_isr
= megasas_isr
,
972 .tasklet
= megasas_complete_cmd_dpc
,
973 .init_adapter
= megasas_init_adapter_mfi
,
974 .build_and_issue_cmd
= megasas_build_and_issue_cmd
,
975 .issue_dcmd
= megasas_issue_dcmd
,
979 * This is the end of set of functions & definitions
980 * specific to gen2 (deviceid : 0x78, 0x79) controllers
984 * Template added for TB (Fusion)
986 extern struct megasas_instance_template megasas_instance_template_fusion
;
989 * megasas_issue_polled - Issues a polling command
990 * @instance: Adapter soft state
991 * @cmd: Command packet to be issued
993 * For polling, MFI requires the cmd_status to be set to MFI_STAT_INVALID_STATUS before posting.
996 megasas_issue_polled(struct megasas_instance
*instance
, struct megasas_cmd
*cmd
)
998 struct megasas_header
*frame_hdr
= &cmd
->frame
->hdr
;
1000 frame_hdr
->cmd_status
= MFI_STAT_INVALID_STATUS
;
1001 frame_hdr
->flags
|= cpu_to_le16(MFI_FRAME_DONT_POST_IN_REPLY_QUEUE
);
1003 if (atomic_read(&instance
->adprecovery
) == MEGASAS_HW_CRITICAL_ERROR
) {
1004 dev_err(&instance
->pdev
->dev
, "Failed from %s %d\n",
1005 __func__
, __LINE__
);
1006 return DCMD_NOT_FIRED
;
1009 instance
->instancet
->issue_dcmd(instance
, cmd
);
1011 return wait_and_poll(instance
, cmd
, instance
->requestorId
?
1012 MEGASAS_ROUTINE_WAIT_TIME_VF
: MFI_IO_TIMEOUT_SECS
);
1016 * megasas_issue_blocked_cmd - Synchronous wrapper around regular FW cmds
1017 * @instance: Adapter soft state
1018 * @cmd: Command to be issued
1019 * @timeout: Timeout in seconds
1021 * This function waits on an event for the command to be returned from ISR.
1022 * Max wait time is MEGASAS_INTERNAL_CMD_WAIT_TIME secs
1023 * Used to issue ioctl commands.
1026 megasas_issue_blocked_cmd(struct megasas_instance
*instance
,
1027 struct megasas_cmd
*cmd
, int timeout
)
1030 cmd
->cmd_status_drv
= MFI_STAT_INVALID_STATUS
;
1032 if (atomic_read(&instance
->adprecovery
) == MEGASAS_HW_CRITICAL_ERROR
) {
1033 dev_err(&instance
->pdev
->dev
, "Failed from %s %d\n",
1034 __func__
, __LINE__
);
1035 return DCMD_NOT_FIRED
;
1038 instance
->instancet
->issue_dcmd(instance
, cmd
);
1041 ret
= wait_event_timeout(instance
->int_cmd_wait_q
,
1042 cmd
->cmd_status_drv
!= MFI_STAT_INVALID_STATUS
, timeout
* HZ
);
1044 dev_err(&instance
->pdev
->dev
, "Failed from %s %d DCMD Timed out\n",
1045 __func__
, __LINE__
);
1046 return DCMD_TIMEOUT
;
1049 wait_event(instance
->int_cmd_wait_q
,
1050 cmd
->cmd_status_drv
!= MFI_STAT_INVALID_STATUS
);
1052 return (cmd
->cmd_status_drv
== MFI_STAT_OK
) ?
1053 DCMD_SUCCESS
: DCMD_FAILED
;
1057 * megasas_issue_blocked_abort_cmd - Aborts previously issued cmd
1058 * @instance: Adapter soft state
1059 * @cmd_to_abort: Previously issued cmd to be aborted
1060 * @timeout: Timeout in seconds
1062 * MFI firmware can abort previously issued AEN comamnd (automatic event
1063 * notification). The megasas_issue_blocked_abort_cmd() issues such abort
1064 * cmd and waits for return status.
1065 * Max wait time is MEGASAS_INTERNAL_CMD_WAIT_TIME secs
1068 megasas_issue_blocked_abort_cmd(struct megasas_instance
*instance
,
1069 struct megasas_cmd
*cmd_to_abort
, int timeout
)
1071 struct megasas_cmd
*cmd
;
1072 struct megasas_abort_frame
*abort_fr
;
1075 cmd
= megasas_get_cmd(instance
);
1080 abort_fr
= &cmd
->frame
->abort
;
1083 * Prepare and issue the abort frame
1085 abort_fr
->cmd
= MFI_CMD_ABORT
;
1086 abort_fr
->cmd_status
= MFI_STAT_INVALID_STATUS
;
1087 abort_fr
->flags
= cpu_to_le16(0);
1088 abort_fr
->abort_context
= cpu_to_le32(cmd_to_abort
->index
);
1089 abort_fr
->abort_mfi_phys_addr_lo
=
1090 cpu_to_le32(lower_32_bits(cmd_to_abort
->frame_phys_addr
));
1091 abort_fr
->abort_mfi_phys_addr_hi
=
1092 cpu_to_le32(upper_32_bits(cmd_to_abort
->frame_phys_addr
));
1095 cmd
->cmd_status_drv
= MFI_STAT_INVALID_STATUS
;
1097 if (atomic_read(&instance
->adprecovery
) == MEGASAS_HW_CRITICAL_ERROR
) {
1098 dev_err(&instance
->pdev
->dev
, "Failed from %s %d\n",
1099 __func__
, __LINE__
);
1100 return DCMD_NOT_FIRED
;
1103 instance
->instancet
->issue_dcmd(instance
, cmd
);
1106 ret
= wait_event_timeout(instance
->abort_cmd_wait_q
,
1107 cmd
->cmd_status_drv
!= MFI_STAT_INVALID_STATUS
, timeout
* HZ
);
1109 dev_err(&instance
->pdev
->dev
, "Failed from %s %d Abort Timed out\n",
1110 __func__
, __LINE__
);
1111 return DCMD_TIMEOUT
;
1114 wait_event(instance
->abort_cmd_wait_q
,
1115 cmd
->cmd_status_drv
!= MFI_STAT_INVALID_STATUS
);
1119 megasas_return_cmd(instance
, cmd
);
1120 return (cmd
->cmd_status_drv
== MFI_STAT_OK
) ?
1121 DCMD_SUCCESS
: DCMD_FAILED
;
1125 * megasas_make_sgl32 - Prepares 32-bit SGL
1126 * @instance: Adapter soft state
1127 * @scp: SCSI command from the mid-layer
1128 * @mfi_sgl: SGL to be filled in
1130 * If successful, this function returns the number of SG elements. Otherwise,
1134 megasas_make_sgl32(struct megasas_instance
*instance
, struct scsi_cmnd
*scp
,
1135 union megasas_sgl
*mfi_sgl
)
1139 struct scatterlist
*os_sgl
;
1141 sge_count
= scsi_dma_map(scp
);
1142 BUG_ON(sge_count
< 0);
1145 scsi_for_each_sg(scp
, os_sgl
, sge_count
, i
) {
1146 mfi_sgl
->sge32
[i
].length
= cpu_to_le32(sg_dma_len(os_sgl
));
1147 mfi_sgl
->sge32
[i
].phys_addr
= cpu_to_le32(sg_dma_address(os_sgl
));
1154 * megasas_make_sgl64 - Prepares 64-bit SGL
1155 * @instance: Adapter soft state
1156 * @scp: SCSI command from the mid-layer
1157 * @mfi_sgl: SGL to be filled in
1159 * If successful, this function returns the number of SG elements. Otherwise,
1163 megasas_make_sgl64(struct megasas_instance
*instance
, struct scsi_cmnd
*scp
,
1164 union megasas_sgl
*mfi_sgl
)
1168 struct scatterlist
*os_sgl
;
1170 sge_count
= scsi_dma_map(scp
);
1171 BUG_ON(sge_count
< 0);
1174 scsi_for_each_sg(scp
, os_sgl
, sge_count
, i
) {
1175 mfi_sgl
->sge64
[i
].length
= cpu_to_le32(sg_dma_len(os_sgl
));
1176 mfi_sgl
->sge64
[i
].phys_addr
= cpu_to_le64(sg_dma_address(os_sgl
));
1183 * megasas_make_sgl_skinny - Prepares IEEE SGL
1184 * @instance: Adapter soft state
1185 * @scp: SCSI command from the mid-layer
1186 * @mfi_sgl: SGL to be filled in
1188 * If successful, this function returns the number of SG elements. Otherwise,
1192 megasas_make_sgl_skinny(struct megasas_instance
*instance
,
1193 struct scsi_cmnd
*scp
, union megasas_sgl
*mfi_sgl
)
1197 struct scatterlist
*os_sgl
;
1199 sge_count
= scsi_dma_map(scp
);
1202 scsi_for_each_sg(scp
, os_sgl
, sge_count
, i
) {
1203 mfi_sgl
->sge_skinny
[i
].length
=
1204 cpu_to_le32(sg_dma_len(os_sgl
));
1205 mfi_sgl
->sge_skinny
[i
].phys_addr
=
1206 cpu_to_le64(sg_dma_address(os_sgl
));
1207 mfi_sgl
->sge_skinny
[i
].flag
= cpu_to_le32(0);
1214 * megasas_get_frame_count - Computes the number of frames
1215 * @frame_type : type of frame- io or pthru frame
1216 * @sge_count : number of sg elements
1218 * Returns the number of frames required for numnber of sge's (sge_count)
1221 static u32
megasas_get_frame_count(struct megasas_instance
*instance
,
1222 u8 sge_count
, u8 frame_type
)
1227 u32 frame_count
= 0;
1229 sge_sz
= (IS_DMA64
) ? sizeof(struct megasas_sge64
) :
1230 sizeof(struct megasas_sge32
);
1232 if (instance
->flag_ieee
) {
1233 sge_sz
= sizeof(struct megasas_sge_skinny
);
1237 * Main frame can contain 2 SGEs for 64-bit SGLs and
1238 * 3 SGEs for 32-bit SGLs for ldio &
1239 * 1 SGEs for 64-bit SGLs and
1240 * 2 SGEs for 32-bit SGLs for pthru frame
1242 if (unlikely(frame_type
== PTHRU_FRAME
)) {
1243 if (instance
->flag_ieee
== 1) {
1244 num_cnt
= sge_count
- 1;
1245 } else if (IS_DMA64
)
1246 num_cnt
= sge_count
- 1;
1248 num_cnt
= sge_count
- 2;
1250 if (instance
->flag_ieee
== 1) {
1251 num_cnt
= sge_count
- 1;
1252 } else if (IS_DMA64
)
1253 num_cnt
= sge_count
- 2;
1255 num_cnt
= sge_count
- 3;
1259 sge_bytes
= sge_sz
* num_cnt
;
1261 frame_count
= (sge_bytes
/ MEGAMFI_FRAME_SIZE
) +
1262 ((sge_bytes
% MEGAMFI_FRAME_SIZE
) ? 1 : 0) ;
1267 if (frame_count
> 7)
1273 * megasas_build_dcdb - Prepares a direct cdb (DCDB) command
1274 * @instance: Adapter soft state
1275 * @scp: SCSI command
1276 * @cmd: Command to be prepared in
1278 * This function prepares CDB commands. These are typcially pass-through
1279 * commands to the devices.
1282 megasas_build_dcdb(struct megasas_instance
*instance
, struct scsi_cmnd
*scp
,
1283 struct megasas_cmd
*cmd
)
1288 struct megasas_pthru_frame
*pthru
;
1290 is_logical
= MEGASAS_IS_LOGICAL(scp
->device
);
1291 device_id
= MEGASAS_DEV_INDEX(scp
);
1292 pthru
= (struct megasas_pthru_frame
*)cmd
->frame
;
1294 if (scp
->sc_data_direction
== PCI_DMA_TODEVICE
)
1295 flags
= MFI_FRAME_DIR_WRITE
;
1296 else if (scp
->sc_data_direction
== PCI_DMA_FROMDEVICE
)
1297 flags
= MFI_FRAME_DIR_READ
;
1298 else if (scp
->sc_data_direction
== PCI_DMA_NONE
)
1299 flags
= MFI_FRAME_DIR_NONE
;
1301 if (instance
->flag_ieee
== 1) {
1302 flags
|= MFI_FRAME_IEEE
;
1306 * Prepare the DCDB frame
1308 pthru
->cmd
= (is_logical
) ? MFI_CMD_LD_SCSI_IO
: MFI_CMD_PD_SCSI_IO
;
1309 pthru
->cmd_status
= 0x0;
1310 pthru
->scsi_status
= 0x0;
1311 pthru
->target_id
= device_id
;
1312 pthru
->lun
= scp
->device
->lun
;
1313 pthru
->cdb_len
= scp
->cmd_len
;
1316 pthru
->flags
= cpu_to_le16(flags
);
1317 pthru
->data_xfer_len
= cpu_to_le32(scsi_bufflen(scp
));
1319 memcpy(pthru
->cdb
, scp
->cmnd
, scp
->cmd_len
);
1322 * If the command is for the tape device, set the
1323 * pthru timeout to the os layer timeout value.
1325 if (scp
->device
->type
== TYPE_TAPE
) {
1326 if ((scp
->request
->timeout
/ HZ
) > 0xFFFF)
1327 pthru
->timeout
= cpu_to_le16(0xFFFF);
1329 pthru
->timeout
= cpu_to_le16(scp
->request
->timeout
/ HZ
);
1335 if (instance
->flag_ieee
== 1) {
1336 pthru
->flags
|= cpu_to_le16(MFI_FRAME_SGL64
);
1337 pthru
->sge_count
= megasas_make_sgl_skinny(instance
, scp
,
1339 } else if (IS_DMA64
) {
1340 pthru
->flags
|= cpu_to_le16(MFI_FRAME_SGL64
);
1341 pthru
->sge_count
= megasas_make_sgl64(instance
, scp
,
1344 pthru
->sge_count
= megasas_make_sgl32(instance
, scp
,
1347 if (pthru
->sge_count
> instance
->max_num_sge
) {
1348 dev_err(&instance
->pdev
->dev
, "DCDB too many SGE NUM=%x\n",
1354 * Sense info specific
1356 pthru
->sense_len
= SCSI_SENSE_BUFFERSIZE
;
1357 pthru
->sense_buf_phys_addr_hi
=
1358 cpu_to_le32(upper_32_bits(cmd
->sense_phys_addr
));
1359 pthru
->sense_buf_phys_addr_lo
=
1360 cpu_to_le32(lower_32_bits(cmd
->sense_phys_addr
));
1363 * Compute the total number of frames this command consumes. FW uses
1364 * this number to pull sufficient number of frames from host memory.
1366 cmd
->frame_count
= megasas_get_frame_count(instance
, pthru
->sge_count
,
1369 return cmd
->frame_count
;
1373 * megasas_build_ldio - Prepares IOs to logical devices
1374 * @instance: Adapter soft state
1375 * @scp: SCSI command
1376 * @cmd: Command to be prepared
1378 * Frames (and accompanying SGLs) for regular SCSI IOs use this function.
1381 megasas_build_ldio(struct megasas_instance
*instance
, struct scsi_cmnd
*scp
,
1382 struct megasas_cmd
*cmd
)
1385 u8 sc
= scp
->cmnd
[0];
1387 struct megasas_io_frame
*ldio
;
1389 device_id
= MEGASAS_DEV_INDEX(scp
);
1390 ldio
= (struct megasas_io_frame
*)cmd
->frame
;
1392 if (scp
->sc_data_direction
== PCI_DMA_TODEVICE
)
1393 flags
= MFI_FRAME_DIR_WRITE
;
1394 else if (scp
->sc_data_direction
== PCI_DMA_FROMDEVICE
)
1395 flags
= MFI_FRAME_DIR_READ
;
1397 if (instance
->flag_ieee
== 1) {
1398 flags
|= MFI_FRAME_IEEE
;
1402 * Prepare the Logical IO frame: 2nd bit is zero for all read cmds
1404 ldio
->cmd
= (sc
& 0x02) ? MFI_CMD_LD_WRITE
: MFI_CMD_LD_READ
;
1405 ldio
->cmd_status
= 0x0;
1406 ldio
->scsi_status
= 0x0;
1407 ldio
->target_id
= device_id
;
1409 ldio
->reserved_0
= 0;
1411 ldio
->flags
= cpu_to_le16(flags
);
1412 ldio
->start_lba_hi
= 0;
1413 ldio
->access_byte
= (scp
->cmd_len
!= 6) ? scp
->cmnd
[1] : 0;
1416 * 6-byte READ(0x08) or WRITE(0x0A) cdb
1418 if (scp
->cmd_len
== 6) {
1419 ldio
->lba_count
= cpu_to_le32((u32
) scp
->cmnd
[4]);
1420 ldio
->start_lba_lo
= cpu_to_le32(((u32
) scp
->cmnd
[1] << 16) |
1421 ((u32
) scp
->cmnd
[2] << 8) |
1422 (u32
) scp
->cmnd
[3]);
1424 ldio
->start_lba_lo
&= cpu_to_le32(0x1FFFFF);
1428 * 10-byte READ(0x28) or WRITE(0x2A) cdb
1430 else if (scp
->cmd_len
== 10) {
1431 ldio
->lba_count
= cpu_to_le32((u32
) scp
->cmnd
[8] |
1432 ((u32
) scp
->cmnd
[7] << 8));
1433 ldio
->start_lba_lo
= cpu_to_le32(((u32
) scp
->cmnd
[2] << 24) |
1434 ((u32
) scp
->cmnd
[3] << 16) |
1435 ((u32
) scp
->cmnd
[4] << 8) |
1436 (u32
) scp
->cmnd
[5]);
1440 * 12-byte READ(0xA8) or WRITE(0xAA) cdb
1442 else if (scp
->cmd_len
== 12) {
1443 ldio
->lba_count
= cpu_to_le32(((u32
) scp
->cmnd
[6] << 24) |
1444 ((u32
) scp
->cmnd
[7] << 16) |
1445 ((u32
) scp
->cmnd
[8] << 8) |
1446 (u32
) scp
->cmnd
[9]);
1448 ldio
->start_lba_lo
= cpu_to_le32(((u32
) scp
->cmnd
[2] << 24) |
1449 ((u32
) scp
->cmnd
[3] << 16) |
1450 ((u32
) scp
->cmnd
[4] << 8) |
1451 (u32
) scp
->cmnd
[5]);
1455 * 16-byte READ(0x88) or WRITE(0x8A) cdb
1457 else if (scp
->cmd_len
== 16) {
1458 ldio
->lba_count
= cpu_to_le32(((u32
) scp
->cmnd
[10] << 24) |
1459 ((u32
) scp
->cmnd
[11] << 16) |
1460 ((u32
) scp
->cmnd
[12] << 8) |
1461 (u32
) scp
->cmnd
[13]);
1463 ldio
->start_lba_lo
= cpu_to_le32(((u32
) scp
->cmnd
[6] << 24) |
1464 ((u32
) scp
->cmnd
[7] << 16) |
1465 ((u32
) scp
->cmnd
[8] << 8) |
1466 (u32
) scp
->cmnd
[9]);
1468 ldio
->start_lba_hi
= cpu_to_le32(((u32
) scp
->cmnd
[2] << 24) |
1469 ((u32
) scp
->cmnd
[3] << 16) |
1470 ((u32
) scp
->cmnd
[4] << 8) |
1471 (u32
) scp
->cmnd
[5]);
1478 if (instance
->flag_ieee
) {
1479 ldio
->flags
|= cpu_to_le16(MFI_FRAME_SGL64
);
1480 ldio
->sge_count
= megasas_make_sgl_skinny(instance
, scp
,
1482 } else if (IS_DMA64
) {
1483 ldio
->flags
|= cpu_to_le16(MFI_FRAME_SGL64
);
1484 ldio
->sge_count
= megasas_make_sgl64(instance
, scp
, &ldio
->sgl
);
1486 ldio
->sge_count
= megasas_make_sgl32(instance
, scp
, &ldio
->sgl
);
1488 if (ldio
->sge_count
> instance
->max_num_sge
) {
1489 dev_err(&instance
->pdev
->dev
, "build_ld_io: sge_count = %x\n",
1495 * Sense info specific
1497 ldio
->sense_len
= SCSI_SENSE_BUFFERSIZE
;
1498 ldio
->sense_buf_phys_addr_hi
= 0;
1499 ldio
->sense_buf_phys_addr_lo
= cpu_to_le32(cmd
->sense_phys_addr
);
1502 * Compute the total number of frames this command consumes. FW uses
1503 * this number to pull sufficient number of frames from host memory.
1505 cmd
->frame_count
= megasas_get_frame_count(instance
,
1506 ldio
->sge_count
, IO_FRAME
);
1508 return cmd
->frame_count
;
1512 * megasas_cmd_type - Checks if the cmd is for logical drive/sysPD
1513 * and whether it's RW or non RW
1514 * @scmd: SCSI command
1517 inline int megasas_cmd_type(struct scsi_cmnd
*cmd
)
1521 switch (cmd
->cmnd
[0]) {
1530 ret
= (MEGASAS_IS_LOGICAL(cmd
->device
)) ?
1531 READ_WRITE_LDIO
: READ_WRITE_SYSPDIO
;
1534 ret
= (MEGASAS_IS_LOGICAL(cmd
->device
)) ?
1535 NON_READ_WRITE_LDIO
: NON_READ_WRITE_SYSPDIO
;
1541 * megasas_dump_pending_frames - Dumps the frame address of all pending cmds
1543 * @instance: Adapter soft state
1546 megasas_dump_pending_frames(struct megasas_instance
*instance
)
1548 struct megasas_cmd
*cmd
;
1550 union megasas_sgl
*mfi_sgl
;
1551 struct megasas_io_frame
*ldio
;
1552 struct megasas_pthru_frame
*pthru
;
1554 u16 max_cmd
= instance
->max_fw_cmds
;
1556 dev_err(&instance
->pdev
->dev
, "[%d]: Dumping Frame Phys Address of all pending cmds in FW\n",instance
->host
->host_no
);
1557 dev_err(&instance
->pdev
->dev
, "[%d]: Total OS Pending cmds : %d\n",instance
->host
->host_no
,atomic_read(&instance
->fw_outstanding
));
1559 dev_err(&instance
->pdev
->dev
, "[%d]: 64 bit SGLs were sent to FW\n",instance
->host
->host_no
);
1561 dev_err(&instance
->pdev
->dev
, "[%d]: 32 bit SGLs were sent to FW\n",instance
->host
->host_no
);
1563 dev_err(&instance
->pdev
->dev
, "[%d]: Pending OS cmds in FW : \n",instance
->host
->host_no
);
1564 for (i
= 0; i
< max_cmd
; i
++) {
1565 cmd
= instance
->cmd_list
[i
];
1568 dev_err(&instance
->pdev
->dev
, "[%d]: Frame addr :0x%08lx : ",instance
->host
->host_no
,(unsigned long)cmd
->frame_phys_addr
);
1569 if (megasas_cmd_type(cmd
->scmd
) == READ_WRITE_LDIO
) {
1570 ldio
= (struct megasas_io_frame
*)cmd
->frame
;
1571 mfi_sgl
= &ldio
->sgl
;
1572 sgcount
= ldio
->sge_count
;
1573 dev_err(&instance
->pdev
->dev
, "[%d]: frame count : 0x%x, Cmd : 0x%x, Tgt id : 0x%x,"
1574 " lba lo : 0x%x, lba_hi : 0x%x, sense_buf addr : 0x%x,sge count : 0x%x\n",
1575 instance
->host
->host_no
, cmd
->frame_count
, ldio
->cmd
, ldio
->target_id
,
1576 le32_to_cpu(ldio
->start_lba_lo
), le32_to_cpu(ldio
->start_lba_hi
),
1577 le32_to_cpu(ldio
->sense_buf_phys_addr_lo
), sgcount
);
1579 pthru
= (struct megasas_pthru_frame
*) cmd
->frame
;
1580 mfi_sgl
= &pthru
->sgl
;
1581 sgcount
= pthru
->sge_count
;
1582 dev_err(&instance
->pdev
->dev
, "[%d]: frame count : 0x%x, Cmd : 0x%x, Tgt id : 0x%x, "
1583 "lun : 0x%x, cdb_len : 0x%x, data xfer len : 0x%x, sense_buf addr : 0x%x,sge count : 0x%x\n",
1584 instance
->host
->host_no
, cmd
->frame_count
, pthru
->cmd
, pthru
->target_id
,
1585 pthru
->lun
, pthru
->cdb_len
, le32_to_cpu(pthru
->data_xfer_len
),
1586 le32_to_cpu(pthru
->sense_buf_phys_addr_lo
), sgcount
);
1588 if (megasas_dbg_lvl
& MEGASAS_DBG_LVL
) {
1589 for (n
= 0; n
< sgcount
; n
++) {
1591 dev_err(&instance
->pdev
->dev
, "sgl len : 0x%x, sgl addr : 0x%llx\n",
1592 le32_to_cpu(mfi_sgl
->sge64
[n
].length
),
1593 le64_to_cpu(mfi_sgl
->sge64
[n
].phys_addr
));
1595 dev_err(&instance
->pdev
->dev
, "sgl len : 0x%x, sgl addr : 0x%x\n",
1596 le32_to_cpu(mfi_sgl
->sge32
[n
].length
),
1597 le32_to_cpu(mfi_sgl
->sge32
[n
].phys_addr
));
1601 dev_err(&instance
->pdev
->dev
, "[%d]: Pending Internal cmds in FW : \n",instance
->host
->host_no
);
1602 for (i
= 0; i
< max_cmd
; i
++) {
1604 cmd
= instance
->cmd_list
[i
];
1606 if (cmd
->sync_cmd
== 1)
1607 dev_err(&instance
->pdev
->dev
, "0x%08lx : ", (unsigned long)cmd
->frame_phys_addr
);
1609 dev_err(&instance
->pdev
->dev
, "[%d]: Dumping Done\n\n",instance
->host
->host_no
);
1613 megasas_build_and_issue_cmd(struct megasas_instance
*instance
,
1614 struct scsi_cmnd
*scmd
)
1616 struct megasas_cmd
*cmd
;
1619 cmd
= megasas_get_cmd(instance
);
1621 return SCSI_MLQUEUE_HOST_BUSY
;
1624 * Logical drive command
1626 if (megasas_cmd_type(scmd
) == READ_WRITE_LDIO
)
1627 frame_count
= megasas_build_ldio(instance
, scmd
, cmd
);
1629 frame_count
= megasas_build_dcdb(instance
, scmd
, cmd
);
1632 goto out_return_cmd
;
1635 scmd
->SCp
.ptr
= (char *)cmd
;
1638 * Issue the command to the FW
1640 atomic_inc(&instance
->fw_outstanding
);
1642 instance
->instancet
->fire_cmd(instance
, cmd
->frame_phys_addr
,
1643 cmd
->frame_count
-1, instance
->reg_set
);
1647 megasas_return_cmd(instance
, cmd
);
1648 return SCSI_MLQUEUE_HOST_BUSY
;
1653 * megasas_queue_command - Queue entry point
1654 * @scmd: SCSI command to be queued
1655 * @done: Callback entry point
1658 megasas_queue_command(struct Scsi_Host
*shost
, struct scsi_cmnd
*scmd
)
1660 struct megasas_instance
*instance
;
1661 struct MR_PRIV_DEVICE
*mr_device_priv_data
;
1663 instance
= (struct megasas_instance
*)
1664 scmd
->device
->host
->hostdata
;
1666 if (instance
->unload
== 1) {
1667 scmd
->result
= DID_NO_CONNECT
<< 16;
1668 scmd
->scsi_done(scmd
);
1672 if (instance
->issuepend_done
== 0)
1673 return SCSI_MLQUEUE_HOST_BUSY
;
1676 /* Check for an mpio path and adjust behavior */
1677 if (atomic_read(&instance
->adprecovery
) == MEGASAS_ADPRESET_SM_INFAULT
) {
1678 if (megasas_check_mpio_paths(instance
, scmd
) ==
1679 (DID_REQUEUE
<< 16)) {
1680 return SCSI_MLQUEUE_HOST_BUSY
;
1682 scmd
->result
= DID_NO_CONNECT
<< 16;
1683 scmd
->scsi_done(scmd
);
1688 if (atomic_read(&instance
->adprecovery
) == MEGASAS_HW_CRITICAL_ERROR
) {
1689 scmd
->result
= DID_NO_CONNECT
<< 16;
1690 scmd
->scsi_done(scmd
);
1694 mr_device_priv_data
= scmd
->device
->hostdata
;
1695 if (!mr_device_priv_data
) {
1696 scmd
->result
= DID_NO_CONNECT
<< 16;
1697 scmd
->scsi_done(scmd
);
1701 if (atomic_read(&instance
->adprecovery
) != MEGASAS_HBA_OPERATIONAL
)
1702 return SCSI_MLQUEUE_HOST_BUSY
;
1704 if (mr_device_priv_data
->tm_busy
)
1705 return SCSI_MLQUEUE_DEVICE_BUSY
;
1710 if (MEGASAS_IS_LOGICAL(scmd
->device
) &&
1711 (scmd
->device
->id
>= instance
->fw_supported_vd_count
||
1712 scmd
->device
->lun
)) {
1713 scmd
->result
= DID_BAD_TARGET
<< 16;
1717 if ((scmd
->cmnd
[0] == SYNCHRONIZE_CACHE
) &&
1718 MEGASAS_IS_LOGICAL(scmd
->device
) &&
1719 (!instance
->fw_sync_cache_support
)) {
1720 scmd
->result
= DID_OK
<< 16;
1724 return instance
->instancet
->build_and_issue_cmd(instance
, scmd
);
1727 scmd
->scsi_done(scmd
);
1731 static struct megasas_instance
*megasas_lookup_instance(u16 host_no
)
1735 for (i
= 0; i
< megasas_mgmt_info
.max_index
; i
++) {
1737 if ((megasas_mgmt_info
.instance
[i
]) &&
1738 (megasas_mgmt_info
.instance
[i
]->host
->host_no
== host_no
))
1739 return megasas_mgmt_info
.instance
[i
];
1746 * megasas_set_dynamic_target_properties -
1747 * Device property set by driver may not be static and it is required to be
1751 * set dma alignment (only for eedp protection enable vd).
1753 * @sdev: OS provided scsi device
1757 void megasas_set_dynamic_target_properties(struct scsi_device
*sdev
)
1759 u16 pd_index
= 0, ld
;
1761 struct megasas_instance
*instance
;
1762 struct fusion_context
*fusion
;
1763 struct MR_PRIV_DEVICE
*mr_device_priv_data
;
1764 struct MR_PD_CFG_SEQ_NUM_SYNC
*pd_sync
;
1765 struct MR_LD_RAID
*raid
;
1766 struct MR_DRV_RAID_MAP_ALL
*local_map_ptr
;
1768 instance
= megasas_lookup_instance(sdev
->host
->host_no
);
1769 fusion
= instance
->ctrl_context
;
1770 mr_device_priv_data
= sdev
->hostdata
;
1772 if (!fusion
|| !mr_device_priv_data
)
1775 if (MEGASAS_IS_LOGICAL(sdev
)) {
1776 device_id
= ((sdev
->channel
% 2) * MEGASAS_MAX_DEV_PER_CHANNEL
)
1778 local_map_ptr
= fusion
->ld_drv_map
[(instance
->map_id
& 1)];
1779 ld
= MR_TargetIdToLdGet(device_id
, local_map_ptr
);
1780 if (ld
>= instance
->fw_supported_vd_count
)
1782 raid
= MR_LdRaidGet(ld
, local_map_ptr
);
1784 if (raid
->capability
.ldPiMode
== MR_PROT_INFO_TYPE_CONTROLLER
)
1785 blk_queue_update_dma_alignment(sdev
->request_queue
, 0x7);
1787 mr_device_priv_data
->is_tm_capable
=
1788 raid
->capability
.tmCapable
;
1789 } else if (instance
->use_seqnum_jbod_fp
) {
1790 pd_index
= (sdev
->channel
* MEGASAS_MAX_DEV_PER_CHANNEL
) +
1792 pd_sync
= (void *)fusion
->pd_seq_sync
1793 [(instance
->pd_seq_map_id
- 1) & 1];
1794 mr_device_priv_data
->is_tm_capable
=
1795 pd_sync
->seq
[pd_index
].capability
.tmCapable
;
1800 * megasas_set_nvme_device_properties -
1802 * set virtual page boundary = 4K (current mr_nvme_pg_size is 4K).
1803 * set maximum io transfer = MDTS of NVME device provided by MR firmware.
1805 * MR firmware provides value in KB. Caller of this function converts
1808 * e.a MDTS=5 means 2^5 * nvme page size. (In case of 4K page size,
1809 * MR firmware provides value 128 as (32 * 4K) = 128K.
1811 * @sdev: scsi device
1812 * @max_io_size: maximum io transfer size
1816 megasas_set_nvme_device_properties(struct scsi_device
*sdev
, u32 max_io_size
)
1818 struct megasas_instance
*instance
;
1819 u32 mr_nvme_pg_size
;
1821 instance
= (struct megasas_instance
*)sdev
->host
->hostdata
;
1822 mr_nvme_pg_size
= max_t(u32
, instance
->nvme_page_size
,
1823 MR_DEFAULT_NVME_PAGE_SIZE
);
1825 blk_queue_max_hw_sectors(sdev
->request_queue
, (max_io_size
/ 512));
1827 queue_flag_set_unlocked(QUEUE_FLAG_NOMERGES
, sdev
->request_queue
);
1828 blk_queue_virt_boundary(sdev
->request_queue
, mr_nvme_pg_size
- 1);
1833 * megasas_set_static_target_properties -
1834 * Device property set by driver are static and it is not required to be
1835 * updated after OCR.
1838 * set device queue depth
1839 * set nvme device properties. see - megasas_set_nvme_device_properties
1841 * @sdev: scsi device
1842 * @is_target_prop true, if fw provided target properties.
1844 static void megasas_set_static_target_properties(struct scsi_device
*sdev
,
1845 bool is_target_prop
)
1847 u16 target_index
= 0;
1849 u32 device_qd
= MEGASAS_DEFAULT_CMD_PER_LUN
;
1850 u32 max_io_size_kb
= MR_DEFAULT_NVME_MDTS_KB
;
1852 struct megasas_instance
*instance
;
1853 struct MR_PRIV_DEVICE
*mr_device_priv_data
;
1855 instance
= megasas_lookup_instance(sdev
->host
->host_no
);
1856 mr_device_priv_data
= sdev
->hostdata
;
1857 interface_type
= mr_device_priv_data
->interface_type
;
1860 * The RAID firmware may require extended timeouts.
1862 blk_queue_rq_timeout(sdev
->request_queue
, scmd_timeout
* HZ
);
1864 target_index
= (sdev
->channel
* MEGASAS_MAX_DEV_PER_CHANNEL
) + sdev
->id
;
1866 switch (interface_type
) {
1868 device_qd
= MEGASAS_SAS_QD
;
1871 device_qd
= MEGASAS_SATA_QD
;
1874 device_qd
= MEGASAS_NVME_QD
;
1878 if (is_target_prop
) {
1879 tgt_device_qd
= le32_to_cpu(instance
->tgt_prop
->device_qdepth
);
1880 if (tgt_device_qd
&&
1881 (tgt_device_qd
<= instance
->host
->can_queue
))
1882 device_qd
= tgt_device_qd
;
1884 /* max_io_size_kb will be set to non zero for
1885 * nvme based vd and syspd.
1887 max_io_size_kb
= le32_to_cpu(instance
->tgt_prop
->max_io_size_kb
);
1890 if (instance
->nvme_page_size
&& max_io_size_kb
)
1891 megasas_set_nvme_device_properties(sdev
, (max_io_size_kb
<< 10));
1893 scsi_change_queue_depth(sdev
, device_qd
);
1898 static int megasas_slave_configure(struct scsi_device
*sdev
)
1901 struct megasas_instance
*instance
;
1902 int ret_target_prop
= DCMD_FAILED
;
1903 bool is_target_prop
= false;
1905 instance
= megasas_lookup_instance(sdev
->host
->host_no
);
1906 if (instance
->pd_list_not_supported
) {
1907 if (!MEGASAS_IS_LOGICAL(sdev
) && sdev
->type
== TYPE_DISK
) {
1908 pd_index
= (sdev
->channel
* MEGASAS_MAX_DEV_PER_CHANNEL
) +
1910 if (instance
->pd_list
[pd_index
].driveState
!=
1916 mutex_lock(&instance
->hba_mutex
);
1917 /* Send DCMD to Firmware and cache the information */
1918 if ((instance
->pd_info
) && !MEGASAS_IS_LOGICAL(sdev
))
1919 megasas_get_pd_info(instance
, sdev
);
1921 /* Some ventura firmware may not have instance->nvme_page_size set.
1922 * Do not send MR_DCMD_DRV_GET_TARGET_PROP
1924 if ((instance
->tgt_prop
) && (instance
->nvme_page_size
))
1925 ret_target_prop
= megasas_get_target_prop(instance
, sdev
);
1927 is_target_prop
= (ret_target_prop
== DCMD_SUCCESS
) ? true : false;
1928 megasas_set_static_target_properties(sdev
, is_target_prop
);
1930 mutex_unlock(&instance
->hba_mutex
);
1932 /* This sdev property may change post OCR */
1933 megasas_set_dynamic_target_properties(sdev
);
1938 static int megasas_slave_alloc(struct scsi_device
*sdev
)
1941 struct megasas_instance
*instance
;
1942 struct MR_PRIV_DEVICE
*mr_device_priv_data
;
1944 instance
= megasas_lookup_instance(sdev
->host
->host_no
);
1945 if (!MEGASAS_IS_LOGICAL(sdev
)) {
1947 * Open the OS scan to the SYSTEM PD
1950 (sdev
->channel
* MEGASAS_MAX_DEV_PER_CHANNEL
) +
1952 if ((instance
->pd_list_not_supported
||
1953 instance
->pd_list
[pd_index
].driveState
==
1954 MR_PD_STATE_SYSTEM
)) {
1961 mr_device_priv_data
= kzalloc(sizeof(*mr_device_priv_data
),
1963 if (!mr_device_priv_data
)
1965 sdev
->hostdata
= mr_device_priv_data
;
1967 atomic_set(&mr_device_priv_data
->r1_ldio_hint
,
1968 instance
->r1_ldio_hint_default
);
1972 static void megasas_slave_destroy(struct scsi_device
*sdev
)
1974 kfree(sdev
->hostdata
);
1975 sdev
->hostdata
= NULL
;
1979 * megasas_complete_outstanding_ioctls - Complete outstanding ioctls after a
1981 * @instance: Adapter soft state
1984 static void megasas_complete_outstanding_ioctls(struct megasas_instance
*instance
)
1987 struct megasas_cmd
*cmd_mfi
;
1988 struct megasas_cmd_fusion
*cmd_fusion
;
1989 struct fusion_context
*fusion
= instance
->ctrl_context
;
1991 /* Find all outstanding ioctls */
1993 for (i
= 0; i
< instance
->max_fw_cmds
; i
++) {
1994 cmd_fusion
= fusion
->cmd_list
[i
];
1995 if (cmd_fusion
->sync_cmd_idx
!= (u32
)ULONG_MAX
) {
1996 cmd_mfi
= instance
->cmd_list
[cmd_fusion
->sync_cmd_idx
];
1997 if (cmd_mfi
->sync_cmd
&&
1998 cmd_mfi
->frame
->hdr
.cmd
!= MFI_CMD_ABORT
)
1999 megasas_complete_cmd(instance
,
2004 for (i
= 0; i
< instance
->max_fw_cmds
; i
++) {
2005 cmd_mfi
= instance
->cmd_list
[i
];
2006 if (cmd_mfi
->sync_cmd
&& cmd_mfi
->frame
->hdr
.cmd
!=
2008 megasas_complete_cmd(instance
, cmd_mfi
, DID_OK
);
2014 void megaraid_sas_kill_hba(struct megasas_instance
*instance
)
2016 /* Set critical error to block I/O & ioctls in case caller didn't */
2017 atomic_set(&instance
->adprecovery
, MEGASAS_HW_CRITICAL_ERROR
);
2018 /* Wait 1 second to ensure IO or ioctls in build have posted */
2020 if ((instance
->pdev
->device
== PCI_DEVICE_ID_LSI_SAS0073SKINNY
) ||
2021 (instance
->pdev
->device
== PCI_DEVICE_ID_LSI_SAS0071SKINNY
) ||
2022 (instance
->ctrl_context
)) {
2023 writel(MFI_STOP_ADP
, &instance
->reg_set
->doorbell
);
2025 readl(&instance
->reg_set
->doorbell
);
2026 if (instance
->requestorId
&& instance
->peerIsPresent
)
2027 memset(instance
->ld_ids
, 0xff, MEGASAS_MAX_LD_IDS
);
2029 writel(MFI_STOP_ADP
,
2030 &instance
->reg_set
->inbound_doorbell
);
2032 /* Complete outstanding ioctls when adapter is killed */
2033 megasas_complete_outstanding_ioctls(instance
);
2037 * megasas_check_and_restore_queue_depth - Check if queue depth needs to be
2038 * restored to max value
2039 * @instance: Adapter soft state
2043 megasas_check_and_restore_queue_depth(struct megasas_instance
*instance
)
2045 unsigned long flags
;
2047 if (instance
->flag
& MEGASAS_FW_BUSY
2048 && time_after(jiffies
, instance
->last_time
+ 5 * HZ
)
2049 && atomic_read(&instance
->fw_outstanding
) <
2050 instance
->throttlequeuedepth
+ 1) {
2052 spin_lock_irqsave(instance
->host
->host_lock
, flags
);
2053 instance
->flag
&= ~MEGASAS_FW_BUSY
;
2055 instance
->host
->can_queue
= instance
->cur_can_queue
;
2056 spin_unlock_irqrestore(instance
->host
->host_lock
, flags
);
2061 * megasas_complete_cmd_dpc - Returns FW's controller structure
2062 * @instance_addr: Address of adapter soft state
2064 * Tasklet to complete cmds
2066 static void megasas_complete_cmd_dpc(unsigned long instance_addr
)
2071 struct megasas_cmd
*cmd
;
2072 struct megasas_instance
*instance
=
2073 (struct megasas_instance
*)instance_addr
;
2074 unsigned long flags
;
2076 /* If we have already declared adapter dead, donot complete cmds */
2077 if (atomic_read(&instance
->adprecovery
) == MEGASAS_HW_CRITICAL_ERROR
)
2080 spin_lock_irqsave(&instance
->completion_lock
, flags
);
2082 producer
= le32_to_cpu(*instance
->producer
);
2083 consumer
= le32_to_cpu(*instance
->consumer
);
2085 while (consumer
!= producer
) {
2086 context
= le32_to_cpu(instance
->reply_queue
[consumer
]);
2087 if (context
>= instance
->max_fw_cmds
) {
2088 dev_err(&instance
->pdev
->dev
, "Unexpected context value %x\n",
2093 cmd
= instance
->cmd_list
[context
];
2095 megasas_complete_cmd(instance
, cmd
, DID_OK
);
2098 if (consumer
== (instance
->max_fw_cmds
+ 1)) {
2103 *instance
->consumer
= cpu_to_le32(producer
);
2105 spin_unlock_irqrestore(&instance
->completion_lock
, flags
);
2108 * Check if we can restore can_queue
2110 megasas_check_and_restore_queue_depth(instance
);
2114 * megasas_start_timer - Initializes a timer object
2115 * @instance: Adapter soft state
2116 * @timer: timer object to be initialized
2117 * @fn: timer function
2118 * @interval: time interval between timer function call
2121 void megasas_start_timer(struct megasas_instance
*instance
,
2122 struct timer_list
*timer
,
2123 void *fn
, unsigned long interval
)
2126 timer
->expires
= jiffies
+ interval
;
2127 timer
->data
= (unsigned long)instance
;
2128 timer
->function
= fn
;
2133 megasas_internal_reset_defer_cmds(struct megasas_instance
*instance
);
2136 process_fw_state_change_wq(struct work_struct
*work
);
2138 void megasas_do_ocr(struct megasas_instance
*instance
)
2140 if ((instance
->pdev
->device
== PCI_DEVICE_ID_LSI_SAS1064R
) ||
2141 (instance
->pdev
->device
== PCI_DEVICE_ID_DELL_PERC5
) ||
2142 (instance
->pdev
->device
== PCI_DEVICE_ID_LSI_VERDE_ZCR
)) {
2143 *instance
->consumer
= cpu_to_le32(MEGASAS_ADPRESET_INPROG_SIGN
);
2145 instance
->instancet
->disable_intr(instance
);
2146 atomic_set(&instance
->adprecovery
, MEGASAS_ADPRESET_SM_INFAULT
);
2147 instance
->issuepend_done
= 0;
2149 atomic_set(&instance
->fw_outstanding
, 0);
2150 megasas_internal_reset_defer_cmds(instance
);
2151 process_fw_state_change_wq(&instance
->work_init
);
2154 static int megasas_get_ld_vf_affiliation_111(struct megasas_instance
*instance
,
2157 struct megasas_cmd
*cmd
;
2158 struct megasas_dcmd_frame
*dcmd
;
2159 struct MR_LD_VF_AFFILIATION_111
*new_affiliation_111
= NULL
;
2160 dma_addr_t new_affiliation_111_h
;
2164 cmd
= megasas_get_cmd(instance
);
2167 dev_printk(KERN_DEBUG
, &instance
->pdev
->dev
, "megasas_get_ld_vf_affiliation_111:"
2168 "Failed to get cmd for scsi%d\n",
2169 instance
->host
->host_no
);
2173 dcmd
= &cmd
->frame
->dcmd
;
2175 if (!instance
->vf_affiliation_111
) {
2176 dev_warn(&instance
->pdev
->dev
, "SR-IOV: Couldn't get LD/VF "
2177 "affiliation for scsi%d\n", instance
->host
->host_no
);
2178 megasas_return_cmd(instance
, cmd
);
2183 memset(instance
->vf_affiliation_111
, 0,
2184 sizeof(struct MR_LD_VF_AFFILIATION_111
));
2186 new_affiliation_111
=
2187 pci_alloc_consistent(instance
->pdev
,
2188 sizeof(struct MR_LD_VF_AFFILIATION_111
),
2189 &new_affiliation_111_h
);
2190 if (!new_affiliation_111
) {
2191 dev_printk(KERN_DEBUG
, &instance
->pdev
->dev
, "SR-IOV: Couldn't allocate "
2192 "memory for new affiliation for scsi%d\n",
2193 instance
->host
->host_no
);
2194 megasas_return_cmd(instance
, cmd
);
2197 memset(new_affiliation_111
, 0,
2198 sizeof(struct MR_LD_VF_AFFILIATION_111
));
2201 memset(dcmd
->mbox
.b
, 0, MFI_MBOX_SIZE
);
2203 dcmd
->cmd
= MFI_CMD_DCMD
;
2204 dcmd
->cmd_status
= MFI_STAT_INVALID_STATUS
;
2205 dcmd
->sge_count
= 1;
2206 dcmd
->flags
= cpu_to_le16(MFI_FRAME_DIR_BOTH
);
2209 dcmd
->data_xfer_len
=
2210 cpu_to_le32(sizeof(struct MR_LD_VF_AFFILIATION_111
));
2211 dcmd
->opcode
= cpu_to_le32(MR_DCMD_LD_VF_MAP_GET_ALL_LDS_111
);
2214 dcmd
->sgl
.sge32
[0].phys_addr
=
2215 cpu_to_le32(instance
->vf_affiliation_111_h
);
2217 dcmd
->sgl
.sge32
[0].phys_addr
=
2218 cpu_to_le32(new_affiliation_111_h
);
2220 dcmd
->sgl
.sge32
[0].length
= cpu_to_le32(
2221 sizeof(struct MR_LD_VF_AFFILIATION_111
));
2223 dev_warn(&instance
->pdev
->dev
, "SR-IOV: Getting LD/VF affiliation for "
2224 "scsi%d\n", instance
->host
->host_no
);
2226 if (megasas_issue_blocked_cmd(instance
, cmd
, 0) != DCMD_SUCCESS
) {
2227 dev_warn(&instance
->pdev
->dev
, "SR-IOV: LD/VF affiliation DCMD"
2228 " failed with status 0x%x for scsi%d\n",
2229 dcmd
->cmd_status
, instance
->host
->host_no
);
2230 retval
= 1; /* Do a scan if we couldn't get affiliation */
2235 thisVf
= new_affiliation_111
->thisVf
;
2236 for (ld
= 0 ; ld
< new_affiliation_111
->vdCount
; ld
++)
2237 if (instance
->vf_affiliation_111
->map
[ld
].policy
[thisVf
] !=
2238 new_affiliation_111
->map
[ld
].policy
[thisVf
]) {
2239 dev_warn(&instance
->pdev
->dev
, "SR-IOV: "
2240 "Got new LD/VF affiliation for scsi%d\n",
2241 instance
->host
->host_no
);
2242 memcpy(instance
->vf_affiliation_111
,
2243 new_affiliation_111
,
2244 sizeof(struct MR_LD_VF_AFFILIATION_111
));
2250 if (new_affiliation_111
) {
2251 pci_free_consistent(instance
->pdev
,
2252 sizeof(struct MR_LD_VF_AFFILIATION_111
),
2253 new_affiliation_111
,
2254 new_affiliation_111_h
);
2257 megasas_return_cmd(instance
, cmd
);
2262 static int megasas_get_ld_vf_affiliation_12(struct megasas_instance
*instance
,
2265 struct megasas_cmd
*cmd
;
2266 struct megasas_dcmd_frame
*dcmd
;
2267 struct MR_LD_VF_AFFILIATION
*new_affiliation
= NULL
;
2268 struct MR_LD_VF_MAP
*newmap
= NULL
, *savedmap
= NULL
;
2269 dma_addr_t new_affiliation_h
;
2270 int i
, j
, retval
= 0, found
= 0, doscan
= 0;
2273 cmd
= megasas_get_cmd(instance
);
2276 dev_printk(KERN_DEBUG
, &instance
->pdev
->dev
, "megasas_get_ld_vf_affiliation12: "
2277 "Failed to get cmd for scsi%d\n",
2278 instance
->host
->host_no
);
2282 dcmd
= &cmd
->frame
->dcmd
;
2284 if (!instance
->vf_affiliation
) {
2285 dev_warn(&instance
->pdev
->dev
, "SR-IOV: Couldn't get LD/VF "
2286 "affiliation for scsi%d\n", instance
->host
->host_no
);
2287 megasas_return_cmd(instance
, cmd
);
2292 memset(instance
->vf_affiliation
, 0, (MAX_LOGICAL_DRIVES
+ 1) *
2293 sizeof(struct MR_LD_VF_AFFILIATION
));
2296 pci_alloc_consistent(instance
->pdev
,
2297 (MAX_LOGICAL_DRIVES
+ 1) *
2298 sizeof(struct MR_LD_VF_AFFILIATION
),
2299 &new_affiliation_h
);
2300 if (!new_affiliation
) {
2301 dev_printk(KERN_DEBUG
, &instance
->pdev
->dev
, "SR-IOV: Couldn't allocate "
2302 "memory for new affiliation for scsi%d\n",
2303 instance
->host
->host_no
);
2304 megasas_return_cmd(instance
, cmd
);
2307 memset(new_affiliation
, 0, (MAX_LOGICAL_DRIVES
+ 1) *
2308 sizeof(struct MR_LD_VF_AFFILIATION
));
2311 memset(dcmd
->mbox
.b
, 0, MFI_MBOX_SIZE
);
2313 dcmd
->cmd
= MFI_CMD_DCMD
;
2314 dcmd
->cmd_status
= MFI_STAT_INVALID_STATUS
;
2315 dcmd
->sge_count
= 1;
2316 dcmd
->flags
= cpu_to_le16(MFI_FRAME_DIR_BOTH
);
2319 dcmd
->data_xfer_len
= cpu_to_le32((MAX_LOGICAL_DRIVES
+ 1) *
2320 sizeof(struct MR_LD_VF_AFFILIATION
));
2321 dcmd
->opcode
= cpu_to_le32(MR_DCMD_LD_VF_MAP_GET_ALL_LDS
);
2324 dcmd
->sgl
.sge32
[0].phys_addr
=
2325 cpu_to_le32(instance
->vf_affiliation_h
);
2327 dcmd
->sgl
.sge32
[0].phys_addr
=
2328 cpu_to_le32(new_affiliation_h
);
2330 dcmd
->sgl
.sge32
[0].length
= cpu_to_le32((MAX_LOGICAL_DRIVES
+ 1) *
2331 sizeof(struct MR_LD_VF_AFFILIATION
));
2333 dev_warn(&instance
->pdev
->dev
, "SR-IOV: Getting LD/VF affiliation for "
2334 "scsi%d\n", instance
->host
->host_no
);
2337 if (megasas_issue_blocked_cmd(instance
, cmd
, 0) != DCMD_SUCCESS
) {
2338 dev_warn(&instance
->pdev
->dev
, "SR-IOV: LD/VF affiliation DCMD"
2339 " failed with status 0x%x for scsi%d\n",
2340 dcmd
->cmd_status
, instance
->host
->host_no
);
2341 retval
= 1; /* Do a scan if we couldn't get affiliation */
2346 if (!new_affiliation
->ldCount
) {
2347 dev_warn(&instance
->pdev
->dev
, "SR-IOV: Got new LD/VF "
2348 "affiliation for passive path for scsi%d\n",
2349 instance
->host
->host_no
);
2353 newmap
= new_affiliation
->map
;
2354 savedmap
= instance
->vf_affiliation
->map
;
2355 thisVf
= new_affiliation
->thisVf
;
2356 for (i
= 0 ; i
< new_affiliation
->ldCount
; i
++) {
2358 for (j
= 0; j
< instance
->vf_affiliation
->ldCount
;
2360 if (newmap
->ref
.targetId
==
2361 savedmap
->ref
.targetId
) {
2363 if (newmap
->policy
[thisVf
] !=
2364 savedmap
->policy
[thisVf
]) {
2369 savedmap
= (struct MR_LD_VF_MAP
*)
2370 ((unsigned char *)savedmap
+
2373 if (!found
&& newmap
->policy
[thisVf
] !=
2374 MR_LD_ACCESS_HIDDEN
) {
2378 newmap
= (struct MR_LD_VF_MAP
*)
2379 ((unsigned char *)newmap
+ newmap
->size
);
2382 newmap
= new_affiliation
->map
;
2383 savedmap
= instance
->vf_affiliation
->map
;
2385 for (i
= 0 ; i
< instance
->vf_affiliation
->ldCount
; i
++) {
2387 for (j
= 0 ; j
< new_affiliation
->ldCount
; j
++) {
2388 if (savedmap
->ref
.targetId
==
2389 newmap
->ref
.targetId
) {
2391 if (savedmap
->policy
[thisVf
] !=
2392 newmap
->policy
[thisVf
]) {
2397 newmap
= (struct MR_LD_VF_MAP
*)
2398 ((unsigned char *)newmap
+
2401 if (!found
&& savedmap
->policy
[thisVf
] !=
2402 MR_LD_ACCESS_HIDDEN
) {
2406 savedmap
= (struct MR_LD_VF_MAP
*)
2407 ((unsigned char *)savedmap
+
2413 dev_warn(&instance
->pdev
->dev
, "SR-IOV: Got new LD/VF "
2414 "affiliation for scsi%d\n", instance
->host
->host_no
);
2415 memcpy(instance
->vf_affiliation
, new_affiliation
,
2416 new_affiliation
->size
);
2420 if (new_affiliation
)
2421 pci_free_consistent(instance
->pdev
,
2422 (MAX_LOGICAL_DRIVES
+ 1) *
2423 sizeof(struct MR_LD_VF_AFFILIATION
),
2424 new_affiliation
, new_affiliation_h
);
2425 megasas_return_cmd(instance
, cmd
);
2430 /* This function will get the current SR-IOV LD/VF affiliation */
2431 static int megasas_get_ld_vf_affiliation(struct megasas_instance
*instance
,
2436 if (instance
->PlasmaFW111
)
2437 retval
= megasas_get_ld_vf_affiliation_111(instance
, initial
);
2439 retval
= megasas_get_ld_vf_affiliation_12(instance
, initial
);
2443 /* This function will tell FW to start the SR-IOV heartbeat */
2444 int megasas_sriov_start_heartbeat(struct megasas_instance
*instance
,
2447 struct megasas_cmd
*cmd
;
2448 struct megasas_dcmd_frame
*dcmd
;
2451 cmd
= megasas_get_cmd(instance
);
2454 dev_printk(KERN_DEBUG
, &instance
->pdev
->dev
, "megasas_sriov_start_heartbeat: "
2455 "Failed to get cmd for scsi%d\n",
2456 instance
->host
->host_no
);
2460 dcmd
= &cmd
->frame
->dcmd
;
2463 instance
->hb_host_mem
=
2464 pci_zalloc_consistent(instance
->pdev
,
2465 sizeof(struct MR_CTRL_HB_HOST_MEM
),
2466 &instance
->hb_host_mem_h
);
2467 if (!instance
->hb_host_mem
) {
2468 dev_printk(KERN_DEBUG
, &instance
->pdev
->dev
, "SR-IOV: Couldn't allocate"
2469 " memory for heartbeat host memory for scsi%d\n",
2470 instance
->host
->host_no
);
2476 memset(dcmd
->mbox
.b
, 0, MFI_MBOX_SIZE
);
2478 dcmd
->mbox
.s
[0] = cpu_to_le16(sizeof(struct MR_CTRL_HB_HOST_MEM
));
2479 dcmd
->cmd
= MFI_CMD_DCMD
;
2480 dcmd
->cmd_status
= MFI_STAT_INVALID_STATUS
;
2481 dcmd
->sge_count
= 1;
2482 dcmd
->flags
= cpu_to_le16(MFI_FRAME_DIR_BOTH
);
2485 dcmd
->data_xfer_len
= cpu_to_le32(sizeof(struct MR_CTRL_HB_HOST_MEM
));
2486 dcmd
->opcode
= cpu_to_le32(MR_DCMD_CTRL_SHARED_HOST_MEM_ALLOC
);
2487 dcmd
->sgl
.sge32
[0].phys_addr
= cpu_to_le32(instance
->hb_host_mem_h
);
2488 dcmd
->sgl
.sge32
[0].length
= cpu_to_le32(sizeof(struct MR_CTRL_HB_HOST_MEM
));
2490 dev_warn(&instance
->pdev
->dev
, "SR-IOV: Starting heartbeat for scsi%d\n",
2491 instance
->host
->host_no
);
2493 if (instance
->ctrl_context
&& !instance
->mask_interrupts
)
2494 retval
= megasas_issue_blocked_cmd(instance
, cmd
,
2495 MEGASAS_ROUTINE_WAIT_TIME_VF
);
2497 retval
= megasas_issue_polled(instance
, cmd
);
2500 dev_warn(&instance
->pdev
->dev
, "SR-IOV: MR_DCMD_CTRL_SHARED_HOST"
2501 "_MEM_ALLOC DCMD %s for scsi%d\n",
2502 (dcmd
->cmd_status
== MFI_STAT_INVALID_STATUS
) ?
2503 "timed out" : "failed", instance
->host
->host_no
);
2508 megasas_return_cmd(instance
, cmd
);
2513 /* Handler for SR-IOV heartbeat */
2514 void megasas_sriov_heartbeat_handler(unsigned long instance_addr
)
2516 struct megasas_instance
*instance
=
2517 (struct megasas_instance
*)instance_addr
;
2519 if (instance
->hb_host_mem
->HB
.fwCounter
!=
2520 instance
->hb_host_mem
->HB
.driverCounter
) {
2521 instance
->hb_host_mem
->HB
.driverCounter
=
2522 instance
->hb_host_mem
->HB
.fwCounter
;
2523 mod_timer(&instance
->sriov_heartbeat_timer
,
2524 jiffies
+ MEGASAS_SRIOV_HEARTBEAT_INTERVAL_VF
);
2526 dev_warn(&instance
->pdev
->dev
, "SR-IOV: Heartbeat never "
2527 "completed for scsi%d\n", instance
->host
->host_no
);
2528 schedule_work(&instance
->work_init
);
2533 * megasas_wait_for_outstanding - Wait for all outstanding cmds
2534 * @instance: Adapter soft state
2536 * This function waits for up to MEGASAS_RESET_WAIT_TIME seconds for FW to
2537 * complete all its outstanding commands. Returns error if one or more IOs
2538 * are pending after this time period. It also marks the controller dead.
2540 static int megasas_wait_for_outstanding(struct megasas_instance
*instance
)
2542 int i
, sl
, outstanding
;
2544 u32 wait_time
= MEGASAS_RESET_WAIT_TIME
;
2545 unsigned long flags
;
2546 struct list_head clist_local
;
2547 struct megasas_cmd
*reset_cmd
;
2550 if (atomic_read(&instance
->adprecovery
) == MEGASAS_HW_CRITICAL_ERROR
) {
2551 dev_info(&instance
->pdev
->dev
, "%s:%d HBA is killed.\n",
2552 __func__
, __LINE__
);
2556 if (atomic_read(&instance
->adprecovery
) != MEGASAS_HBA_OPERATIONAL
) {
2558 INIT_LIST_HEAD(&clist_local
);
2559 spin_lock_irqsave(&instance
->hba_lock
, flags
);
2560 list_splice_init(&instance
->internal_reset_pending_q
,
2562 spin_unlock_irqrestore(&instance
->hba_lock
, flags
);
2564 dev_notice(&instance
->pdev
->dev
, "HBA reset wait ...\n");
2565 for (i
= 0; i
< wait_time
; i
++) {
2567 if (atomic_read(&instance
->adprecovery
) == MEGASAS_HBA_OPERATIONAL
)
2571 if (atomic_read(&instance
->adprecovery
) != MEGASAS_HBA_OPERATIONAL
) {
2572 dev_notice(&instance
->pdev
->dev
, "reset: Stopping HBA.\n");
2573 atomic_set(&instance
->adprecovery
, MEGASAS_HW_CRITICAL_ERROR
);
2578 while (!list_empty(&clist_local
)) {
2579 reset_cmd
= list_entry((&clist_local
)->next
,
2580 struct megasas_cmd
, list
);
2581 list_del_init(&reset_cmd
->list
);
2582 if (reset_cmd
->scmd
) {
2583 reset_cmd
->scmd
->result
= DID_REQUEUE
<< 16;
2584 dev_notice(&instance
->pdev
->dev
, "%d:%p reset [%02x]\n",
2585 reset_index
, reset_cmd
,
2586 reset_cmd
->scmd
->cmnd
[0]);
2588 reset_cmd
->scmd
->scsi_done(reset_cmd
->scmd
);
2589 megasas_return_cmd(instance
, reset_cmd
);
2590 } else if (reset_cmd
->sync_cmd
) {
2591 dev_notice(&instance
->pdev
->dev
, "%p synch cmds"
2595 reset_cmd
->cmd_status_drv
= MFI_STAT_INVALID_STATUS
;
2596 instance
->instancet
->fire_cmd(instance
,
2597 reset_cmd
->frame_phys_addr
,
2598 0, instance
->reg_set
);
2600 dev_notice(&instance
->pdev
->dev
, "%p unexpected"
2610 for (i
= 0; i
< resetwaittime
; i
++) {
2611 outstanding
= atomic_read(&instance
->fw_outstanding
);
2616 if (!(i
% MEGASAS_RESET_NOTICE_INTERVAL
)) {
2617 dev_notice(&instance
->pdev
->dev
, "[%2d]waiting for %d "
2618 "commands to complete\n",i
,outstanding
);
2620 * Call cmd completion routine. Cmd to be
2621 * be completed directly without depending on isr.
2623 megasas_complete_cmd_dpc((unsigned long)instance
);
2630 outstanding
= atomic_read(&instance
->fw_outstanding
);
2631 fw_state
= instance
->instancet
->read_fw_status_reg(instance
->reg_set
) & MFI_STATE_MASK
;
2633 if ((!outstanding
&& (fw_state
== MFI_STATE_OPERATIONAL
)))
2634 goto no_outstanding
;
2636 if (instance
->disableOnlineCtrlReset
)
2637 goto kill_hba_and_failed
;
2639 if ((fw_state
== MFI_STATE_FAULT
) || atomic_read(&instance
->fw_outstanding
)) {
2640 dev_info(&instance
->pdev
->dev
,
2641 "%s:%d waiting_for_outstanding: before issue OCR. FW state = 0x%x, oustanding 0x%x\n",
2642 __func__
, __LINE__
, fw_state
, atomic_read(&instance
->fw_outstanding
));
2644 goto kill_hba_and_failed
;
2645 megasas_do_ocr(instance
);
2647 if (atomic_read(&instance
->adprecovery
) == MEGASAS_HW_CRITICAL_ERROR
) {
2648 dev_info(&instance
->pdev
->dev
, "%s:%d OCR failed and HBA is killed.\n",
2649 __func__
, __LINE__
);
2652 dev_info(&instance
->pdev
->dev
, "%s:%d waiting_for_outstanding: after issue OCR.\n",
2653 __func__
, __LINE__
);
2655 for (sl
= 0; sl
< 10; sl
++)
2658 outstanding
= atomic_read(&instance
->fw_outstanding
);
2660 fw_state
= instance
->instancet
->read_fw_status_reg(instance
->reg_set
) & MFI_STATE_MASK
;
2661 if ((!outstanding
&& (fw_state
== MFI_STATE_OPERATIONAL
)))
2662 goto no_outstanding
;
2669 dev_info(&instance
->pdev
->dev
, "%s:%d no more pending commands remain after reset handling.\n",
2670 __func__
, __LINE__
);
2673 kill_hba_and_failed
:
2675 /* Reset not supported, kill adapter */
2676 dev_info(&instance
->pdev
->dev
, "%s:%d killing adapter scsi%d"
2677 " disableOnlineCtrlReset %d fw_outstanding %d \n",
2678 __func__
, __LINE__
, instance
->host
->host_no
, instance
->disableOnlineCtrlReset
,
2679 atomic_read(&instance
->fw_outstanding
));
2680 megasas_dump_pending_frames(instance
);
2681 megaraid_sas_kill_hba(instance
);
2687 * megasas_generic_reset - Generic reset routine
2688 * @scmd: Mid-layer SCSI command
2690 * This routine implements a generic reset handler for device, bus and host
2691 * reset requests. Device, bus and host specific reset handlers can use this
2692 * function after they do their specific tasks.
2694 static int megasas_generic_reset(struct scsi_cmnd
*scmd
)
2697 struct megasas_instance
*instance
;
2699 instance
= (struct megasas_instance
*)scmd
->device
->host
->hostdata
;
2701 scmd_printk(KERN_NOTICE
, scmd
, "megasas: RESET cmd=%x retries=%x\n",
2702 scmd
->cmnd
[0], scmd
->retries
);
2704 if (atomic_read(&instance
->adprecovery
) == MEGASAS_HW_CRITICAL_ERROR
) {
2705 dev_err(&instance
->pdev
->dev
, "cannot recover from previous reset failures\n");
2709 ret_val
= megasas_wait_for_outstanding(instance
);
2710 if (ret_val
== SUCCESS
)
2711 dev_notice(&instance
->pdev
->dev
, "reset successful\n");
2713 dev_err(&instance
->pdev
->dev
, "failed to do reset\n");
2719 * megasas_reset_timer - quiesce the adapter if required
2722 * Sets the FW busy flag and reduces the host->can_queue if the
2723 * cmd has not been completed within the timeout period.
2726 blk_eh_timer_return
megasas_reset_timer(struct scsi_cmnd
*scmd
)
2728 struct megasas_instance
*instance
;
2729 unsigned long flags
;
2731 if (time_after(jiffies
, scmd
->jiffies_at_alloc
+
2732 (scmd_timeout
* 2) * HZ
)) {
2733 return BLK_EH_NOT_HANDLED
;
2736 instance
= (struct megasas_instance
*)scmd
->device
->host
->hostdata
;
2737 if (!(instance
->flag
& MEGASAS_FW_BUSY
)) {
2738 /* FW is busy, throttle IO */
2739 spin_lock_irqsave(instance
->host
->host_lock
, flags
);
2741 instance
->host
->can_queue
= instance
->throttlequeuedepth
;
2742 instance
->last_time
= jiffies
;
2743 instance
->flag
|= MEGASAS_FW_BUSY
;
2745 spin_unlock_irqrestore(instance
->host
->host_lock
, flags
);
2747 return BLK_EH_RESET_TIMER
;
2751 * megasas_dump_frame - This function will dump MPT/MFI frame
2754 megasas_dump_frame(void *mpi_request
, int sz
)
2757 __le32
*mfp
= (__le32
*)mpi_request
;
2759 printk(KERN_INFO
"IO request frame:\n\t");
2760 for (i
= 0; i
< sz
/ sizeof(__le32
); i
++) {
2761 if (i
&& ((i
% 8) == 0))
2763 printk("%08x ", le32_to_cpu(mfp
[i
]));
2769 * megasas_reset_bus_host - Bus & host reset handler entry point
2771 static int megasas_reset_bus_host(struct scsi_cmnd
*scmd
)
2774 struct megasas_instance
*instance
;
2776 instance
= (struct megasas_instance
*)scmd
->device
->host
->hostdata
;
2778 scmd_printk(KERN_INFO
, scmd
,
2779 "Controller reset is requested due to IO timeout\n"
2780 "SCSI command pointer: (%p)\t SCSI host state: %d\t"
2781 " SCSI host busy: %d\t FW outstanding: %d\n",
2782 scmd
, scmd
->device
->host
->shost_state
,
2783 atomic_read((atomic_t
*)&scmd
->device
->host
->host_busy
),
2784 atomic_read(&instance
->fw_outstanding
));
2787 * First wait for all commands to complete
2789 if (instance
->ctrl_context
) {
2790 struct megasas_cmd_fusion
*cmd
;
2791 cmd
= (struct megasas_cmd_fusion
*)scmd
->SCp
.ptr
;
2793 megasas_dump_frame(cmd
->io_request
,
2794 sizeof(struct MPI2_RAID_SCSI_IO_REQUEST
));
2795 ret
= megasas_reset_fusion(scmd
->device
->host
,
2796 SCSIIO_TIMEOUT_OCR
);
2798 ret
= megasas_generic_reset(scmd
);
2804 * megasas_task_abort - Issues task abort request to firmware
2805 * (supported only for fusion adapters)
2806 * @scmd: SCSI command pointer
2808 static int megasas_task_abort(struct scsi_cmnd
*scmd
)
2811 struct megasas_instance
*instance
;
2813 instance
= (struct megasas_instance
*)scmd
->device
->host
->hostdata
;
2815 if (instance
->ctrl_context
)
2816 ret
= megasas_task_abort_fusion(scmd
);
2818 sdev_printk(KERN_NOTICE
, scmd
->device
, "TASK ABORT not supported\n");
2826 * megasas_reset_target: Issues target reset request to firmware
2827 * (supported only for fusion adapters)
2828 * @scmd: SCSI command pointer
2830 static int megasas_reset_target(struct scsi_cmnd
*scmd
)
2833 struct megasas_instance
*instance
;
2835 instance
= (struct megasas_instance
*)scmd
->device
->host
->hostdata
;
2837 if (instance
->ctrl_context
)
2838 ret
= megasas_reset_target_fusion(scmd
);
2840 sdev_printk(KERN_NOTICE
, scmd
->device
, "TARGET RESET not supported\n");
2848 * megasas_bios_param - Returns disk geometry for a disk
2849 * @sdev: device handle
2850 * @bdev: block device
2851 * @capacity: drive capacity
2852 * @geom: geometry parameters
2855 megasas_bios_param(struct scsi_device
*sdev
, struct block_device
*bdev
,
2856 sector_t capacity
, int geom
[])
2863 /* Default heads (64) & sectors (32) */
2867 tmp
= heads
* sectors
;
2868 cylinders
= capacity
;
2870 sector_div(cylinders
, tmp
);
2873 * Handle extended translation size for logical drives > 1Gb
2876 if (capacity
>= 0x200000) {
2879 tmp
= heads
*sectors
;
2880 cylinders
= capacity
;
2881 sector_div(cylinders
, tmp
);
2886 geom
[2] = cylinders
;
2891 static void megasas_aen_polling(struct work_struct
*work
);
2894 * megasas_service_aen - Processes an event notification
2895 * @instance: Adapter soft state
2896 * @cmd: AEN command completed by the ISR
2898 * For AEN, driver sends a command down to FW that is held by the FW till an
2899 * event occurs. When an event of interest occurs, FW completes the command
2900 * that it was previously holding.
2902 * This routines sends SIGIO signal to processes that have registered with the
2906 megasas_service_aen(struct megasas_instance
*instance
, struct megasas_cmd
*cmd
)
2908 unsigned long flags
;
2911 * Don't signal app if it is just an aborted previously registered aen
2913 if ((!cmd
->abort_aen
) && (instance
->unload
== 0)) {
2914 spin_lock_irqsave(&poll_aen_lock
, flags
);
2915 megasas_poll_wait_aen
= 1;
2916 spin_unlock_irqrestore(&poll_aen_lock
, flags
);
2917 wake_up(&megasas_poll_wait
);
2918 kill_fasync(&megasas_async_queue
, SIGIO
, POLL_IN
);
2923 instance
->aen_cmd
= NULL
;
2925 megasas_return_cmd(instance
, cmd
);
2927 if ((instance
->unload
== 0) &&
2928 ((instance
->issuepend_done
== 1))) {
2929 struct megasas_aen_event
*ev
;
2931 ev
= kzalloc(sizeof(*ev
), GFP_ATOMIC
);
2933 dev_err(&instance
->pdev
->dev
, "megasas_service_aen: out of memory\n");
2935 ev
->instance
= instance
;
2937 INIT_DELAYED_WORK(&ev
->hotplug_work
,
2938 megasas_aen_polling
);
2939 schedule_delayed_work(&ev
->hotplug_work
, 0);
2945 megasas_fw_crash_buffer_store(struct device
*cdev
,
2946 struct device_attribute
*attr
, const char *buf
, size_t count
)
2948 struct Scsi_Host
*shost
= class_to_shost(cdev
);
2949 struct megasas_instance
*instance
=
2950 (struct megasas_instance
*) shost
->hostdata
;
2952 unsigned long flags
;
2954 if (kstrtoint(buf
, 0, &val
) != 0)
2957 spin_lock_irqsave(&instance
->crashdump_lock
, flags
);
2958 instance
->fw_crash_buffer_offset
= val
;
2959 spin_unlock_irqrestore(&instance
->crashdump_lock
, flags
);
2964 megasas_fw_crash_buffer_show(struct device
*cdev
,
2965 struct device_attribute
*attr
, char *buf
)
2967 struct Scsi_Host
*shost
= class_to_shost(cdev
);
2968 struct megasas_instance
*instance
=
2969 (struct megasas_instance
*) shost
->hostdata
;
2971 unsigned long buff_addr
;
2972 unsigned long dmachunk
= CRASH_DMA_BUF_SIZE
;
2973 unsigned long src_addr
;
2974 unsigned long flags
;
2977 spin_lock_irqsave(&instance
->crashdump_lock
, flags
);
2978 buff_offset
= instance
->fw_crash_buffer_offset
;
2979 if (!instance
->crash_dump_buf
&&
2980 !((instance
->fw_crash_state
== AVAILABLE
) ||
2981 (instance
->fw_crash_state
== COPYING
))) {
2982 dev_err(&instance
->pdev
->dev
,
2983 "Firmware crash dump is not available\n");
2984 spin_unlock_irqrestore(&instance
->crashdump_lock
, flags
);
2988 buff_addr
= (unsigned long) buf
;
2990 if (buff_offset
> (instance
->fw_crash_buffer_size
* dmachunk
)) {
2991 dev_err(&instance
->pdev
->dev
,
2992 "Firmware crash dump offset is out of range\n");
2993 spin_unlock_irqrestore(&instance
->crashdump_lock
, flags
);
2997 size
= (instance
->fw_crash_buffer_size
* dmachunk
) - buff_offset
;
2998 size
= (size
>= PAGE_SIZE
) ? (PAGE_SIZE
- 1) : size
;
3000 src_addr
= (unsigned long)instance
->crash_buf
[buff_offset
/ dmachunk
] +
3001 (buff_offset
% dmachunk
);
3002 memcpy(buf
, (void *)src_addr
, size
);
3003 spin_unlock_irqrestore(&instance
->crashdump_lock
, flags
);
3009 megasas_fw_crash_buffer_size_show(struct device
*cdev
,
3010 struct device_attribute
*attr
, char *buf
)
3012 struct Scsi_Host
*shost
= class_to_shost(cdev
);
3013 struct megasas_instance
*instance
=
3014 (struct megasas_instance
*) shost
->hostdata
;
3016 return snprintf(buf
, PAGE_SIZE
, "%ld\n", (unsigned long)
3017 ((instance
->fw_crash_buffer_size
) * 1024 * 1024)/PAGE_SIZE
);
3021 megasas_fw_crash_state_store(struct device
*cdev
,
3022 struct device_attribute
*attr
, const char *buf
, size_t count
)
3024 struct Scsi_Host
*shost
= class_to_shost(cdev
);
3025 struct megasas_instance
*instance
=
3026 (struct megasas_instance
*) shost
->hostdata
;
3028 unsigned long flags
;
3030 if (kstrtoint(buf
, 0, &val
) != 0)
3033 if ((val
<= AVAILABLE
|| val
> COPY_ERROR
)) {
3034 dev_err(&instance
->pdev
->dev
, "application updates invalid "
3035 "firmware crash state\n");
3039 instance
->fw_crash_state
= val
;
3041 if ((val
== COPIED
) || (val
== COPY_ERROR
)) {
3042 spin_lock_irqsave(&instance
->crashdump_lock
, flags
);
3043 megasas_free_host_crash_buffer(instance
);
3044 spin_unlock_irqrestore(&instance
->crashdump_lock
, flags
);
3045 if (val
== COPY_ERROR
)
3046 dev_info(&instance
->pdev
->dev
, "application failed to "
3047 "copy Firmware crash dump\n");
3049 dev_info(&instance
->pdev
->dev
, "Firmware crash dump "
3050 "copied successfully\n");
3056 megasas_fw_crash_state_show(struct device
*cdev
,
3057 struct device_attribute
*attr
, char *buf
)
3059 struct Scsi_Host
*shost
= class_to_shost(cdev
);
3060 struct megasas_instance
*instance
=
3061 (struct megasas_instance
*) shost
->hostdata
;
3063 return snprintf(buf
, PAGE_SIZE
, "%d\n", instance
->fw_crash_state
);
3067 megasas_page_size_show(struct device
*cdev
,
3068 struct device_attribute
*attr
, char *buf
)
3070 return snprintf(buf
, PAGE_SIZE
, "%ld\n", (unsigned long)PAGE_SIZE
- 1);
3074 megasas_ldio_outstanding_show(struct device
*cdev
, struct device_attribute
*attr
,
3077 struct Scsi_Host
*shost
= class_to_shost(cdev
);
3078 struct megasas_instance
*instance
= (struct megasas_instance
*)shost
->hostdata
;
3080 return snprintf(buf
, PAGE_SIZE
, "%d\n", atomic_read(&instance
->ldio_outstanding
));
3083 static DEVICE_ATTR(fw_crash_buffer
, S_IRUGO
| S_IWUSR
,
3084 megasas_fw_crash_buffer_show
, megasas_fw_crash_buffer_store
);
3085 static DEVICE_ATTR(fw_crash_buffer_size
, S_IRUGO
,
3086 megasas_fw_crash_buffer_size_show
, NULL
);
3087 static DEVICE_ATTR(fw_crash_state
, S_IRUGO
| S_IWUSR
,
3088 megasas_fw_crash_state_show
, megasas_fw_crash_state_store
);
3089 static DEVICE_ATTR(page_size
, S_IRUGO
,
3090 megasas_page_size_show
, NULL
);
3091 static DEVICE_ATTR(ldio_outstanding
, S_IRUGO
,
3092 megasas_ldio_outstanding_show
, NULL
);
3094 struct device_attribute
*megaraid_host_attrs
[] = {
3095 &dev_attr_fw_crash_buffer_size
,
3096 &dev_attr_fw_crash_buffer
,
3097 &dev_attr_fw_crash_state
,
3098 &dev_attr_page_size
,
3099 &dev_attr_ldio_outstanding
,
3104 * Scsi host template for megaraid_sas driver
3106 static struct scsi_host_template megasas_template
= {
3108 .module
= THIS_MODULE
,
3109 .name
= "Avago SAS based MegaRAID driver",
3110 .proc_name
= "megaraid_sas",
3111 .slave_configure
= megasas_slave_configure
,
3112 .slave_alloc
= megasas_slave_alloc
,
3113 .slave_destroy
= megasas_slave_destroy
,
3114 .queuecommand
= megasas_queue_command
,
3115 .eh_target_reset_handler
= megasas_reset_target
,
3116 .eh_abort_handler
= megasas_task_abort
,
3117 .eh_host_reset_handler
= megasas_reset_bus_host
,
3118 .eh_timed_out
= megasas_reset_timer
,
3119 .shost_attrs
= megaraid_host_attrs
,
3120 .bios_param
= megasas_bios_param
,
3121 .use_clustering
= ENABLE_CLUSTERING
,
3122 .change_queue_depth
= scsi_change_queue_depth
,
3127 * megasas_complete_int_cmd - Completes an internal command
3128 * @instance: Adapter soft state
3129 * @cmd: Command to be completed
3131 * The megasas_issue_blocked_cmd() function waits for a command to complete
3132 * after it issues a command. This function wakes up that waiting routine by
3133 * calling wake_up() on the wait queue.
3136 megasas_complete_int_cmd(struct megasas_instance
*instance
,
3137 struct megasas_cmd
*cmd
)
3139 cmd
->cmd_status_drv
= cmd
->frame
->io
.cmd_status
;
3140 wake_up(&instance
->int_cmd_wait_q
);
3144 * megasas_complete_abort - Completes aborting a command
3145 * @instance: Adapter soft state
3146 * @cmd: Cmd that was issued to abort another cmd
3148 * The megasas_issue_blocked_abort_cmd() function waits on abort_cmd_wait_q
3149 * after it issues an abort on a previously issued command. This function
3150 * wakes up all functions waiting on the same wait queue.
3153 megasas_complete_abort(struct megasas_instance
*instance
,
3154 struct megasas_cmd
*cmd
)
3156 if (cmd
->sync_cmd
) {
3158 cmd
->cmd_status_drv
= 0;
3159 wake_up(&instance
->abort_cmd_wait_q
);
3164 * megasas_complete_cmd - Completes a command
3165 * @instance: Adapter soft state
3166 * @cmd: Command to be completed
3167 * @alt_status: If non-zero, use this value as status to
3168 * SCSI mid-layer instead of the value returned
3169 * by the FW. This should be used if caller wants
3170 * an alternate status (as in the case of aborted
3174 megasas_complete_cmd(struct megasas_instance
*instance
, struct megasas_cmd
*cmd
,
3178 struct megasas_header
*hdr
= &cmd
->frame
->hdr
;
3179 unsigned long flags
;
3180 struct fusion_context
*fusion
= instance
->ctrl_context
;
3183 /* flag for the retry reset */
3184 cmd
->retry_for_fw_reset
= 0;
3187 cmd
->scmd
->SCp
.ptr
= NULL
;
3190 case MFI_CMD_INVALID
:
3191 /* Some older 1068 controller FW may keep a pended
3192 MR_DCMD_CTRL_EVENT_GET_INFO left over from the main kernel
3193 when booting the kdump kernel. Ignore this command to
3194 prevent a kernel panic on shutdown of the kdump kernel. */
3195 dev_warn(&instance
->pdev
->dev
, "MFI_CMD_INVALID command "
3197 dev_warn(&instance
->pdev
->dev
, "If you have a controller "
3198 "other than PERC5, please upgrade your firmware\n");
3200 case MFI_CMD_PD_SCSI_IO
:
3201 case MFI_CMD_LD_SCSI_IO
:
3204 * MFI_CMD_PD_SCSI_IO and MFI_CMD_LD_SCSI_IO could have been
3205 * issued either through an IO path or an IOCTL path. If it
3206 * was via IOCTL, we will send it to internal completion.
3208 if (cmd
->sync_cmd
) {
3210 megasas_complete_int_cmd(instance
, cmd
);
3214 case MFI_CMD_LD_READ
:
3215 case MFI_CMD_LD_WRITE
:
3218 cmd
->scmd
->result
= alt_status
<< 16;
3224 atomic_dec(&instance
->fw_outstanding
);
3226 scsi_dma_unmap(cmd
->scmd
);
3227 cmd
->scmd
->scsi_done(cmd
->scmd
);
3228 megasas_return_cmd(instance
, cmd
);
3233 switch (hdr
->cmd_status
) {
3236 cmd
->scmd
->result
= DID_OK
<< 16;
3239 case MFI_STAT_SCSI_IO_FAILED
:
3240 case MFI_STAT_LD_INIT_IN_PROGRESS
:
3242 (DID_ERROR
<< 16) | hdr
->scsi_status
;
3245 case MFI_STAT_SCSI_DONE_WITH_ERROR
:
3247 cmd
->scmd
->result
= (DID_OK
<< 16) | hdr
->scsi_status
;
3249 if (hdr
->scsi_status
== SAM_STAT_CHECK_CONDITION
) {
3250 memset(cmd
->scmd
->sense_buffer
, 0,
3251 SCSI_SENSE_BUFFERSIZE
);
3252 memcpy(cmd
->scmd
->sense_buffer
, cmd
->sense
,
3255 cmd
->scmd
->result
|= DRIVER_SENSE
<< 24;
3260 case MFI_STAT_LD_OFFLINE
:
3261 case MFI_STAT_DEVICE_NOT_FOUND
:
3262 cmd
->scmd
->result
= DID_BAD_TARGET
<< 16;
3266 dev_printk(KERN_DEBUG
, &instance
->pdev
->dev
, "MFI FW status %#x\n",
3268 cmd
->scmd
->result
= DID_ERROR
<< 16;
3272 atomic_dec(&instance
->fw_outstanding
);
3274 scsi_dma_unmap(cmd
->scmd
);
3275 cmd
->scmd
->scsi_done(cmd
->scmd
);
3276 megasas_return_cmd(instance
, cmd
);
3283 opcode
= le32_to_cpu(cmd
->frame
->dcmd
.opcode
);
3284 /* Check for LD map update */
3285 if ((opcode
== MR_DCMD_LD_MAP_GET_INFO
)
3286 && (cmd
->frame
->dcmd
.mbox
.b
[1] == 1)) {
3287 fusion
->fast_path_io
= 0;
3288 spin_lock_irqsave(instance
->host
->host_lock
, flags
);
3289 instance
->map_update_cmd
= NULL
;
3290 if (cmd
->frame
->hdr
.cmd_status
!= 0) {
3291 if (cmd
->frame
->hdr
.cmd_status
!=
3293 dev_warn(&instance
->pdev
->dev
, "map syncfailed, status = 0x%x\n",
3294 cmd
->frame
->hdr
.cmd_status
);
3296 megasas_return_cmd(instance
, cmd
);
3297 spin_unlock_irqrestore(
3298 instance
->host
->host_lock
,
3304 megasas_return_cmd(instance
, cmd
);
3307 * Set fast path IO to ZERO.
3308 * Validate Map will set proper value.
3309 * Meanwhile all IOs will go as LD IO.
3311 if (MR_ValidateMapInfo(instance
))
3312 fusion
->fast_path_io
= 1;
3314 fusion
->fast_path_io
= 0;
3315 megasas_sync_map_info(instance
);
3316 spin_unlock_irqrestore(instance
->host
->host_lock
,
3320 if (opcode
== MR_DCMD_CTRL_EVENT_GET_INFO
||
3321 opcode
== MR_DCMD_CTRL_EVENT_GET
) {
3322 spin_lock_irqsave(&poll_aen_lock
, flags
);
3323 megasas_poll_wait_aen
= 0;
3324 spin_unlock_irqrestore(&poll_aen_lock
, flags
);
3327 /* FW has an updated PD sequence */
3328 if ((opcode
== MR_DCMD_SYSTEM_PD_MAP_GET_INFO
) &&
3329 (cmd
->frame
->dcmd
.mbox
.b
[0] == 1)) {
3331 spin_lock_irqsave(instance
->host
->host_lock
, flags
);
3332 status
= cmd
->frame
->hdr
.cmd_status
;
3333 instance
->jbod_seq_cmd
= NULL
;
3334 megasas_return_cmd(instance
, cmd
);
3336 if (status
== MFI_STAT_OK
) {
3337 instance
->pd_seq_map_id
++;
3338 /* Re-register a pd sync seq num cmd */
3339 if (megasas_sync_pd_seq_num(instance
, true))
3340 instance
->use_seqnum_jbod_fp
= false;
3342 instance
->use_seqnum_jbod_fp
= false;
3344 spin_unlock_irqrestore(instance
->host
->host_lock
, flags
);
3349 * See if got an event notification
3351 if (opcode
== MR_DCMD_CTRL_EVENT_WAIT
)
3352 megasas_service_aen(instance
, cmd
);
3354 megasas_complete_int_cmd(instance
, cmd
);
3360 * Cmd issued to abort another cmd returned
3362 megasas_complete_abort(instance
, cmd
);
3366 dev_info(&instance
->pdev
->dev
, "Unknown command completed! [0x%X]\n",
3373 * megasas_issue_pending_cmds_again - issue all pending cmds
3374 * in FW again because of the fw reset
3375 * @instance: Adapter soft state
3378 megasas_issue_pending_cmds_again(struct megasas_instance
*instance
)
3380 struct megasas_cmd
*cmd
;
3381 struct list_head clist_local
;
3382 union megasas_evt_class_locale class_locale
;
3383 unsigned long flags
;
3386 INIT_LIST_HEAD(&clist_local
);
3387 spin_lock_irqsave(&instance
->hba_lock
, flags
);
3388 list_splice_init(&instance
->internal_reset_pending_q
, &clist_local
);
3389 spin_unlock_irqrestore(&instance
->hba_lock
, flags
);
3391 while (!list_empty(&clist_local
)) {
3392 cmd
= list_entry((&clist_local
)->next
,
3393 struct megasas_cmd
, list
);
3394 list_del_init(&cmd
->list
);
3396 if (cmd
->sync_cmd
|| cmd
->scmd
) {
3397 dev_notice(&instance
->pdev
->dev
, "command %p, %p:%d"
3398 "detected to be pending while HBA reset\n",
3399 cmd
, cmd
->scmd
, cmd
->sync_cmd
);
3401 cmd
->retry_for_fw_reset
++;
3403 if (cmd
->retry_for_fw_reset
== 3) {
3404 dev_notice(&instance
->pdev
->dev
, "cmd %p, %p:%d"
3405 "was tried multiple times during reset."
3406 "Shutting down the HBA\n",
3407 cmd
, cmd
->scmd
, cmd
->sync_cmd
);
3408 instance
->instancet
->disable_intr(instance
);
3409 atomic_set(&instance
->fw_reset_no_pci_access
, 1);
3410 megaraid_sas_kill_hba(instance
);
3415 if (cmd
->sync_cmd
== 1) {
3417 dev_notice(&instance
->pdev
->dev
, "unexpected"
3418 "cmd attached to internal command!\n");
3420 dev_notice(&instance
->pdev
->dev
, "%p synchronous cmd"
3421 "on the internal reset queue,"
3422 "issue it again.\n", cmd
);
3423 cmd
->cmd_status_drv
= MFI_STAT_INVALID_STATUS
;
3424 instance
->instancet
->fire_cmd(instance
,
3425 cmd
->frame_phys_addr
,
3426 0, instance
->reg_set
);
3427 } else if (cmd
->scmd
) {
3428 dev_notice(&instance
->pdev
->dev
, "%p scsi cmd [%02x]"
3429 "detected on the internal queue, issue again.\n",
3430 cmd
, cmd
->scmd
->cmnd
[0]);
3432 atomic_inc(&instance
->fw_outstanding
);
3433 instance
->instancet
->fire_cmd(instance
,
3434 cmd
->frame_phys_addr
,
3435 cmd
->frame_count
-1, instance
->reg_set
);
3437 dev_notice(&instance
->pdev
->dev
, "%p unexpected cmd on the"
3438 "internal reset defer list while re-issue!!\n",
3443 if (instance
->aen_cmd
) {
3444 dev_notice(&instance
->pdev
->dev
, "aen_cmd in def process\n");
3445 megasas_return_cmd(instance
, instance
->aen_cmd
);
3447 instance
->aen_cmd
= NULL
;
3451 * Initiate AEN (Asynchronous Event Notification)
3453 seq_num
= instance
->last_seq_num
;
3454 class_locale
.members
.reserved
= 0;
3455 class_locale
.members
.locale
= MR_EVT_LOCALE_ALL
;
3456 class_locale
.members
.class = MR_EVT_CLASS_DEBUG
;
3458 megasas_register_aen(instance
, seq_num
, class_locale
.word
);
3462 * Move the internal reset pending commands to a deferred queue.
3464 * We move the commands pending at internal reset time to a
3465 * pending queue. This queue would be flushed after successful
3466 * completion of the internal reset sequence. if the internal reset
3467 * did not complete in time, the kernel reset handler would flush
3471 megasas_internal_reset_defer_cmds(struct megasas_instance
*instance
)
3473 struct megasas_cmd
*cmd
;
3475 u16 max_cmd
= instance
->max_fw_cmds
;
3477 unsigned long flags
;
3480 spin_lock_irqsave(&instance
->mfi_pool_lock
, flags
);
3481 for (i
= 0; i
< max_cmd
; i
++) {
3482 cmd
= instance
->cmd_list
[i
];
3483 if (cmd
->sync_cmd
== 1 || cmd
->scmd
) {
3484 dev_notice(&instance
->pdev
->dev
, "moving cmd[%d]:%p:%d:%p"
3485 "on the defer queue as internal\n",
3486 defer_index
, cmd
, cmd
->sync_cmd
, cmd
->scmd
);
3488 if (!list_empty(&cmd
->list
)) {
3489 dev_notice(&instance
->pdev
->dev
, "ERROR while"
3490 " moving this cmd:%p, %d %p, it was"
3491 "discovered on some list?\n",
3492 cmd
, cmd
->sync_cmd
, cmd
->scmd
);
3494 list_del_init(&cmd
->list
);
3497 list_add_tail(&cmd
->list
,
3498 &instance
->internal_reset_pending_q
);
3501 spin_unlock_irqrestore(&instance
->mfi_pool_lock
, flags
);
3506 process_fw_state_change_wq(struct work_struct
*work
)
3508 struct megasas_instance
*instance
=
3509 container_of(work
, struct megasas_instance
, work_init
);
3511 unsigned long flags
;
3513 if (atomic_read(&instance
->adprecovery
) != MEGASAS_ADPRESET_SM_INFAULT
) {
3514 dev_notice(&instance
->pdev
->dev
, "error, recovery st %x\n",
3515 atomic_read(&instance
->adprecovery
));
3519 if (atomic_read(&instance
->adprecovery
) == MEGASAS_ADPRESET_SM_INFAULT
) {
3520 dev_notice(&instance
->pdev
->dev
, "FW detected to be in fault"
3521 "state, restarting it...\n");
3523 instance
->instancet
->disable_intr(instance
);
3524 atomic_set(&instance
->fw_outstanding
, 0);
3526 atomic_set(&instance
->fw_reset_no_pci_access
, 1);
3527 instance
->instancet
->adp_reset(instance
, instance
->reg_set
);
3528 atomic_set(&instance
->fw_reset_no_pci_access
, 0);
3530 dev_notice(&instance
->pdev
->dev
, "FW restarted successfully,"
3531 "initiating next stage...\n");
3533 dev_notice(&instance
->pdev
->dev
, "HBA recovery state machine,"
3534 "state 2 starting...\n");
3536 /* waiting for about 20 second before start the second init */
3537 for (wait
= 0; wait
< 30; wait
++) {
3541 if (megasas_transition_to_ready(instance
, 1)) {
3542 dev_notice(&instance
->pdev
->dev
, "adapter not ready\n");
3544 atomic_set(&instance
->fw_reset_no_pci_access
, 1);
3545 megaraid_sas_kill_hba(instance
);
3549 if ((instance
->pdev
->device
== PCI_DEVICE_ID_LSI_SAS1064R
) ||
3550 (instance
->pdev
->device
== PCI_DEVICE_ID_DELL_PERC5
) ||
3551 (instance
->pdev
->device
== PCI_DEVICE_ID_LSI_VERDE_ZCR
)
3553 *instance
->consumer
= *instance
->producer
;
3555 *instance
->consumer
= 0;
3556 *instance
->producer
= 0;
3559 megasas_issue_init_mfi(instance
);
3561 spin_lock_irqsave(&instance
->hba_lock
, flags
);
3562 atomic_set(&instance
->adprecovery
, MEGASAS_HBA_OPERATIONAL
);
3563 spin_unlock_irqrestore(&instance
->hba_lock
, flags
);
3564 instance
->instancet
->enable_intr(instance
);
3566 megasas_issue_pending_cmds_again(instance
);
3567 instance
->issuepend_done
= 1;
3572 * megasas_deplete_reply_queue - Processes all completed commands
3573 * @instance: Adapter soft state
3574 * @alt_status: Alternate status to be returned to
3575 * SCSI mid-layer instead of the status
3576 * returned by the FW
3577 * Note: this must be called with hba lock held
3580 megasas_deplete_reply_queue(struct megasas_instance
*instance
,
3586 if ((mfiStatus
= instance
->instancet
->check_reset(instance
,
3587 instance
->reg_set
)) == 1) {
3591 if ((mfiStatus
= instance
->instancet
->clear_intr(
3594 /* Hardware may not set outbound_intr_status in MSI-X mode */
3595 if (!instance
->msix_vectors
)
3599 instance
->mfiStatus
= mfiStatus
;
3601 if ((mfiStatus
& MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE
)) {
3602 fw_state
= instance
->instancet
->read_fw_status_reg(
3603 instance
->reg_set
) & MFI_STATE_MASK
;
3605 if (fw_state
!= MFI_STATE_FAULT
) {
3606 dev_notice(&instance
->pdev
->dev
, "fw state:%x\n",
3610 if ((fw_state
== MFI_STATE_FAULT
) &&
3611 (instance
->disableOnlineCtrlReset
== 0)) {
3612 dev_notice(&instance
->pdev
->dev
, "wait adp restart\n");
3614 if ((instance
->pdev
->device
==
3615 PCI_DEVICE_ID_LSI_SAS1064R
) ||
3616 (instance
->pdev
->device
==
3617 PCI_DEVICE_ID_DELL_PERC5
) ||
3618 (instance
->pdev
->device
==
3619 PCI_DEVICE_ID_LSI_VERDE_ZCR
)) {
3621 *instance
->consumer
=
3622 cpu_to_le32(MEGASAS_ADPRESET_INPROG_SIGN
);
3626 instance
->instancet
->disable_intr(instance
);
3627 atomic_set(&instance
->adprecovery
, MEGASAS_ADPRESET_SM_INFAULT
);
3628 instance
->issuepend_done
= 0;
3630 atomic_set(&instance
->fw_outstanding
, 0);
3631 megasas_internal_reset_defer_cmds(instance
);
3633 dev_notice(&instance
->pdev
->dev
, "fwState=%x, stage:%d\n",
3634 fw_state
, atomic_read(&instance
->adprecovery
));
3636 schedule_work(&instance
->work_init
);
3640 dev_notice(&instance
->pdev
->dev
, "fwstate:%x, dis_OCR=%x\n",
3641 fw_state
, instance
->disableOnlineCtrlReset
);
3645 tasklet_schedule(&instance
->isr_tasklet
);
3649 * megasas_isr - isr entry point
3651 static irqreturn_t
megasas_isr(int irq
, void *devp
)
3653 struct megasas_irq_context
*irq_context
= devp
;
3654 struct megasas_instance
*instance
= irq_context
->instance
;
3655 unsigned long flags
;
3658 if (atomic_read(&instance
->fw_reset_no_pci_access
))
3661 spin_lock_irqsave(&instance
->hba_lock
, flags
);
3662 rc
= megasas_deplete_reply_queue(instance
, DID_OK
);
3663 spin_unlock_irqrestore(&instance
->hba_lock
, flags
);
3669 * megasas_transition_to_ready - Move the FW to READY state
3670 * @instance: Adapter soft state
3672 * During the initialization, FW passes can potentially be in any one of
3673 * several possible states. If the FW in operational, waiting-for-handshake
3674 * states, driver must take steps to bring it to ready state. Otherwise, it
3675 * has to wait for the ready state.
3678 megasas_transition_to_ready(struct megasas_instance
*instance
, int ocr
)
3684 u32 abs_state
, curr_abs_state
;
3686 abs_state
= instance
->instancet
->read_fw_status_reg(instance
->reg_set
);
3687 fw_state
= abs_state
& MFI_STATE_MASK
;
3689 if (fw_state
!= MFI_STATE_READY
)
3690 dev_info(&instance
->pdev
->dev
, "Waiting for FW to come to ready"
3693 while (fw_state
!= MFI_STATE_READY
) {
3697 case MFI_STATE_FAULT
:
3698 dev_printk(KERN_DEBUG
, &instance
->pdev
->dev
, "FW in FAULT state!!\n");
3700 max_wait
= MEGASAS_RESET_WAIT_TIME
;
3701 cur_state
= MFI_STATE_FAULT
;
3706 case MFI_STATE_WAIT_HANDSHAKE
:
3708 * Set the CLR bit in inbound doorbell
3710 if ((instance
->pdev
->device
==
3711 PCI_DEVICE_ID_LSI_SAS0073SKINNY
) ||
3712 (instance
->pdev
->device
==
3713 PCI_DEVICE_ID_LSI_SAS0071SKINNY
) ||
3714 (instance
->ctrl_context
))
3716 MFI_INIT_CLEAR_HANDSHAKE
|MFI_INIT_HOTPLUG
,
3717 &instance
->reg_set
->doorbell
);
3720 MFI_INIT_CLEAR_HANDSHAKE
|MFI_INIT_HOTPLUG
,
3721 &instance
->reg_set
->inbound_doorbell
);
3723 max_wait
= MEGASAS_RESET_WAIT_TIME
;
3724 cur_state
= MFI_STATE_WAIT_HANDSHAKE
;
3727 case MFI_STATE_BOOT_MESSAGE_PENDING
:
3728 if ((instance
->pdev
->device
==
3729 PCI_DEVICE_ID_LSI_SAS0073SKINNY
) ||
3730 (instance
->pdev
->device
==
3731 PCI_DEVICE_ID_LSI_SAS0071SKINNY
) ||
3732 (instance
->ctrl_context
))
3733 writel(MFI_INIT_HOTPLUG
,
3734 &instance
->reg_set
->doorbell
);
3736 writel(MFI_INIT_HOTPLUG
,
3737 &instance
->reg_set
->inbound_doorbell
);
3739 max_wait
= MEGASAS_RESET_WAIT_TIME
;
3740 cur_state
= MFI_STATE_BOOT_MESSAGE_PENDING
;
3743 case MFI_STATE_OPERATIONAL
:
3745 * Bring it to READY state; assuming max wait 10 secs
3747 instance
->instancet
->disable_intr(instance
);
3748 if ((instance
->pdev
->device
==
3749 PCI_DEVICE_ID_LSI_SAS0073SKINNY
) ||
3750 (instance
->pdev
->device
==
3751 PCI_DEVICE_ID_LSI_SAS0071SKINNY
) ||
3752 (instance
->ctrl_context
)) {
3753 writel(MFI_RESET_FLAGS
,
3754 &instance
->reg_set
->doorbell
);
3756 if (instance
->ctrl_context
) {
3757 for (i
= 0; i
< (10 * 1000); i
+= 20) {
3768 writel(MFI_RESET_FLAGS
,
3769 &instance
->reg_set
->inbound_doorbell
);
3771 max_wait
= MEGASAS_RESET_WAIT_TIME
;
3772 cur_state
= MFI_STATE_OPERATIONAL
;
3775 case MFI_STATE_UNDEFINED
:
3777 * This state should not last for more than 2 seconds
3779 max_wait
= MEGASAS_RESET_WAIT_TIME
;
3780 cur_state
= MFI_STATE_UNDEFINED
;
3783 case MFI_STATE_BB_INIT
:
3784 max_wait
= MEGASAS_RESET_WAIT_TIME
;
3785 cur_state
= MFI_STATE_BB_INIT
;
3788 case MFI_STATE_FW_INIT
:
3789 max_wait
= MEGASAS_RESET_WAIT_TIME
;
3790 cur_state
= MFI_STATE_FW_INIT
;
3793 case MFI_STATE_FW_INIT_2
:
3794 max_wait
= MEGASAS_RESET_WAIT_TIME
;
3795 cur_state
= MFI_STATE_FW_INIT_2
;
3798 case MFI_STATE_DEVICE_SCAN
:
3799 max_wait
= MEGASAS_RESET_WAIT_TIME
;
3800 cur_state
= MFI_STATE_DEVICE_SCAN
;
3803 case MFI_STATE_FLUSH_CACHE
:
3804 max_wait
= MEGASAS_RESET_WAIT_TIME
;
3805 cur_state
= MFI_STATE_FLUSH_CACHE
;
3809 dev_printk(KERN_DEBUG
, &instance
->pdev
->dev
, "Unknown state 0x%x\n",
3815 * The cur_state should not last for more than max_wait secs
3817 for (i
= 0; i
< (max_wait
* 1000); i
++) {
3818 curr_abs_state
= instance
->instancet
->
3819 read_fw_status_reg(instance
->reg_set
);
3821 if (abs_state
== curr_abs_state
) {
3828 * Return error if fw_state hasn't changed after max_wait
3830 if (curr_abs_state
== abs_state
) {
3831 dev_printk(KERN_DEBUG
, &instance
->pdev
->dev
, "FW state [%d] hasn't changed "
3832 "in %d secs\n", fw_state
, max_wait
);
3836 abs_state
= curr_abs_state
;
3837 fw_state
= curr_abs_state
& MFI_STATE_MASK
;
3839 dev_info(&instance
->pdev
->dev
, "FW now in Ready state\n");
3845 * megasas_teardown_frame_pool - Destroy the cmd frame DMA pool
3846 * @instance: Adapter soft state
3848 static void megasas_teardown_frame_pool(struct megasas_instance
*instance
)
3851 u16 max_cmd
= instance
->max_mfi_cmds
;
3852 struct megasas_cmd
*cmd
;
3854 if (!instance
->frame_dma_pool
)
3858 * Return all frames to pool
3860 for (i
= 0; i
< max_cmd
; i
++) {
3862 cmd
= instance
->cmd_list
[i
];
3865 pci_pool_free(instance
->frame_dma_pool
, cmd
->frame
,
3866 cmd
->frame_phys_addr
);
3869 pci_pool_free(instance
->sense_dma_pool
, cmd
->sense
,
3870 cmd
->sense_phys_addr
);
3874 * Now destroy the pool itself
3876 pci_pool_destroy(instance
->frame_dma_pool
);
3877 pci_pool_destroy(instance
->sense_dma_pool
);
3879 instance
->frame_dma_pool
= NULL
;
3880 instance
->sense_dma_pool
= NULL
;
3884 * megasas_create_frame_pool - Creates DMA pool for cmd frames
3885 * @instance: Adapter soft state
3887 * Each command packet has an embedded DMA memory buffer that is used for
3888 * filling MFI frame and the SG list that immediately follows the frame. This
3889 * function creates those DMA memory buffers for each command packet by using
3890 * PCI pool facility.
3892 static int megasas_create_frame_pool(struct megasas_instance
*instance
)
3898 struct megasas_cmd
*cmd
;
3900 max_cmd
= instance
->max_mfi_cmds
;
3903 * Size of our frame is 64 bytes for MFI frame, followed by max SG
3904 * elements and finally SCSI_SENSE_BUFFERSIZE bytes for sense buffer
3906 sge_sz
= (IS_DMA64
) ? sizeof(struct megasas_sge64
) :
3907 sizeof(struct megasas_sge32
);
3909 if (instance
->flag_ieee
)
3910 sge_sz
= sizeof(struct megasas_sge_skinny
);
3913 * For MFI controllers.
3915 * max_sge_sz = 16 byte (sizeof megasas_sge_skinny)
3916 * Total 960 byte (15 MFI frame of 64 byte)
3918 * Fusion adapter require only 3 extra frame.
3919 * max_num_sge = 16 (defined as MAX_IOCTL_SGE)
3920 * max_sge_sz = 12 byte (sizeof megasas_sge64)
3921 * Total 192 byte (3 MFI frame of 64 byte)
3923 frame_count
= instance
->ctrl_context
? (3 + 1) : (15 + 1);
3924 instance
->mfi_frame_size
= MEGAMFI_FRAME_SIZE
* frame_count
;
3926 * Use DMA pool facility provided by PCI layer
3928 instance
->frame_dma_pool
= pci_pool_create("megasas frame pool",
3929 instance
->pdev
, instance
->mfi_frame_size
,
3932 if (!instance
->frame_dma_pool
) {
3933 dev_printk(KERN_DEBUG
, &instance
->pdev
->dev
, "failed to setup frame pool\n");
3937 instance
->sense_dma_pool
= pci_pool_create("megasas sense pool",
3938 instance
->pdev
, 128, 4, 0);
3940 if (!instance
->sense_dma_pool
) {
3941 dev_printk(KERN_DEBUG
, &instance
->pdev
->dev
, "failed to setup sense pool\n");
3943 pci_pool_destroy(instance
->frame_dma_pool
);
3944 instance
->frame_dma_pool
= NULL
;
3950 * Allocate and attach a frame to each of the commands in cmd_list.
3951 * By making cmd->index as the context instead of the &cmd, we can
3952 * always use 32bit context regardless of the architecture
3954 for (i
= 0; i
< max_cmd
; i
++) {
3956 cmd
= instance
->cmd_list
[i
];
3958 cmd
->frame
= pci_pool_alloc(instance
->frame_dma_pool
,
3959 GFP_KERNEL
, &cmd
->frame_phys_addr
);
3961 cmd
->sense
= pci_pool_alloc(instance
->sense_dma_pool
,
3962 GFP_KERNEL
, &cmd
->sense_phys_addr
);
3965 * megasas_teardown_frame_pool() takes care of freeing
3966 * whatever has been allocated
3968 if (!cmd
->frame
|| !cmd
->sense
) {
3969 dev_printk(KERN_DEBUG
, &instance
->pdev
->dev
, "pci_pool_alloc failed\n");
3970 megasas_teardown_frame_pool(instance
);
3974 memset(cmd
->frame
, 0, instance
->mfi_frame_size
);
3975 cmd
->frame
->io
.context
= cpu_to_le32(cmd
->index
);
3976 cmd
->frame
->io
.pad_0
= 0;
3977 if (!instance
->ctrl_context
&& reset_devices
)
3978 cmd
->frame
->hdr
.cmd
= MFI_CMD_INVALID
;
3985 * megasas_free_cmds - Free all the cmds in the free cmd pool
3986 * @instance: Adapter soft state
3988 void megasas_free_cmds(struct megasas_instance
*instance
)
3992 /* First free the MFI frame pool */
3993 megasas_teardown_frame_pool(instance
);
3995 /* Free all the commands in the cmd_list */
3996 for (i
= 0; i
< instance
->max_mfi_cmds
; i
++)
3998 kfree(instance
->cmd_list
[i
]);
4000 /* Free the cmd_list buffer itself */
4001 kfree(instance
->cmd_list
);
4002 instance
->cmd_list
= NULL
;
4004 INIT_LIST_HEAD(&instance
->cmd_pool
);
4008 * megasas_alloc_cmds - Allocates the command packets
4009 * @instance: Adapter soft state
4011 * Each command that is issued to the FW, whether IO commands from the OS or
4012 * internal commands like IOCTLs, are wrapped in local data structure called
4013 * megasas_cmd. The frame embedded in this megasas_cmd is actually issued to
4016 * Each frame has a 32-bit field called context (tag). This context is used
4017 * to get back the megasas_cmd from the frame when a frame gets completed in
4018 * the ISR. Typically the address of the megasas_cmd itself would be used as
4019 * the context. But we wanted to keep the differences between 32 and 64 bit
4020 * systems to the mininum. We always use 32 bit integers for the context. In
4021 * this driver, the 32 bit values are the indices into an array cmd_list.
4022 * This array is used only to look up the megasas_cmd given the context. The
4023 * free commands themselves are maintained in a linked list called cmd_pool.
4025 int megasas_alloc_cmds(struct megasas_instance
*instance
)
4030 struct megasas_cmd
*cmd
;
4031 struct fusion_context
*fusion
;
4033 fusion
= instance
->ctrl_context
;
4034 max_cmd
= instance
->max_mfi_cmds
;
4037 * instance->cmd_list is an array of struct megasas_cmd pointers.
4038 * Allocate the dynamic array first and then allocate individual
4041 instance
->cmd_list
= kcalloc(max_cmd
, sizeof(struct megasas_cmd
*), GFP_KERNEL
);
4043 if (!instance
->cmd_list
) {
4044 dev_printk(KERN_DEBUG
, &instance
->pdev
->dev
, "out of memory\n");
4048 memset(instance
->cmd_list
, 0, sizeof(struct megasas_cmd
*) *max_cmd
);
4050 for (i
= 0; i
< max_cmd
; i
++) {
4051 instance
->cmd_list
[i
] = kmalloc(sizeof(struct megasas_cmd
),
4054 if (!instance
->cmd_list
[i
]) {
4056 for (j
= 0; j
< i
; j
++)
4057 kfree(instance
->cmd_list
[j
]);
4059 kfree(instance
->cmd_list
);
4060 instance
->cmd_list
= NULL
;
4066 for (i
= 0; i
< max_cmd
; i
++) {
4067 cmd
= instance
->cmd_list
[i
];
4068 memset(cmd
, 0, sizeof(struct megasas_cmd
));
4071 cmd
->instance
= instance
;
4073 list_add_tail(&cmd
->list
, &instance
->cmd_pool
);
4077 * Create a frame pool and assign one frame to each cmd
4079 if (megasas_create_frame_pool(instance
)) {
4080 dev_printk(KERN_DEBUG
, &instance
->pdev
->dev
, "Error creating frame DMA pool\n");
4081 megasas_free_cmds(instance
);
4088 * dcmd_timeout_ocr_possible - Check if OCR is possible based on Driver/FW state.
4089 * @instance: Adapter soft state
4091 * Return 0 for only Fusion adapter, if driver load/unload is not in progress
4092 * or FW is not under OCR.
4095 dcmd_timeout_ocr_possible(struct megasas_instance
*instance
) {
4097 if (!instance
->ctrl_context
)
4098 return KILL_ADAPTER
;
4099 else if (instance
->unload
||
4100 test_bit(MEGASAS_FUSION_IN_RESET
, &instance
->reset_flags
))
4101 return IGNORE_TIMEOUT
;
4103 return INITIATE_OCR
;
4107 megasas_get_pd_info(struct megasas_instance
*instance
, struct scsi_device
*sdev
)
4110 struct megasas_cmd
*cmd
;
4111 struct megasas_dcmd_frame
*dcmd
;
4113 struct MR_PRIV_DEVICE
*mr_device_priv_data
;
4116 device_id
= (sdev
->channel
* MEGASAS_MAX_DEV_PER_CHANNEL
) + sdev
->id
;
4117 cmd
= megasas_get_cmd(instance
);
4120 dev_err(&instance
->pdev
->dev
, "Failed to get cmd %s\n", __func__
);
4124 dcmd
= &cmd
->frame
->dcmd
;
4126 memset(instance
->pd_info
, 0, sizeof(*instance
->pd_info
));
4127 memset(dcmd
->mbox
.b
, 0, MFI_MBOX_SIZE
);
4129 dcmd
->mbox
.s
[0] = cpu_to_le16(device_id
);
4130 dcmd
->cmd
= MFI_CMD_DCMD
;
4131 dcmd
->cmd_status
= 0xFF;
4132 dcmd
->sge_count
= 1;
4133 dcmd
->flags
= cpu_to_le16(MFI_FRAME_DIR_READ
);
4136 dcmd
->data_xfer_len
= cpu_to_le32(sizeof(struct MR_PD_INFO
));
4137 dcmd
->opcode
= cpu_to_le32(MR_DCMD_PD_GET_INFO
);
4138 dcmd
->sgl
.sge32
[0].phys_addr
= cpu_to_le32(instance
->pd_info_h
);
4139 dcmd
->sgl
.sge32
[0].length
= cpu_to_le32(sizeof(struct MR_PD_INFO
));
4141 if (instance
->ctrl_context
&& !instance
->mask_interrupts
)
4142 ret
= megasas_issue_blocked_cmd(instance
, cmd
, MFI_IO_TIMEOUT_SECS
);
4144 ret
= megasas_issue_polled(instance
, cmd
);
4148 mr_device_priv_data
= sdev
->hostdata
;
4149 le16_to_cpus((u16
*)&instance
->pd_info
->state
.ddf
.pdType
);
4150 mr_device_priv_data
->interface_type
=
4151 instance
->pd_info
->state
.ddf
.pdType
.intf
;
4156 switch (dcmd_timeout_ocr_possible(instance
)) {
4158 cmd
->flags
|= DRV_DCMD_SKIP_REFIRE
;
4159 megasas_reset_fusion(instance
->host
,
4160 MFI_IO_TIMEOUT_OCR
);
4163 megaraid_sas_kill_hba(instance
);
4165 case IGNORE_TIMEOUT
:
4166 dev_info(&instance
->pdev
->dev
, "Ignore DCMD timeout: %s %d\n",
4167 __func__
, __LINE__
);
4174 if (ret
!= DCMD_TIMEOUT
)
4175 megasas_return_cmd(instance
, cmd
);
4180 * megasas_get_pd_list_info - Returns FW's pd_list structure
4181 * @instance: Adapter soft state
4182 * @pd_list: pd_list structure
4184 * Issues an internal command (DCMD) to get the FW's controller PD
4185 * list structure. This information is mainly used to find out SYSTEM
4186 * supported by the FW.
4189 megasas_get_pd_list(struct megasas_instance
*instance
)
4191 int ret
= 0, pd_index
= 0;
4192 struct megasas_cmd
*cmd
;
4193 struct megasas_dcmd_frame
*dcmd
;
4194 struct MR_PD_LIST
*ci
;
4195 struct MR_PD_ADDRESS
*pd_addr
;
4196 dma_addr_t ci_h
= 0;
4198 if (instance
->pd_list_not_supported
) {
4199 dev_info(&instance
->pdev
->dev
, "MR_DCMD_PD_LIST_QUERY "
4200 "not supported by firmware\n");
4204 cmd
= megasas_get_cmd(instance
);
4207 dev_printk(KERN_DEBUG
, &instance
->pdev
->dev
, "(get_pd_list): Failed to get cmd\n");
4211 dcmd
= &cmd
->frame
->dcmd
;
4213 ci
= pci_alloc_consistent(instance
->pdev
,
4214 MEGASAS_MAX_PD
* sizeof(struct MR_PD_LIST
), &ci_h
);
4217 dev_printk(KERN_DEBUG
, &instance
->pdev
->dev
, "Failed to alloc mem for pd_list\n");
4218 megasas_return_cmd(instance
, cmd
);
4222 memset(ci
, 0, sizeof(*ci
));
4223 memset(dcmd
->mbox
.b
, 0, MFI_MBOX_SIZE
);
4225 dcmd
->mbox
.b
[0] = MR_PD_QUERY_TYPE_EXPOSED_TO_HOST
;
4226 dcmd
->mbox
.b
[1] = 0;
4227 dcmd
->cmd
= MFI_CMD_DCMD
;
4228 dcmd
->cmd_status
= MFI_STAT_INVALID_STATUS
;
4229 dcmd
->sge_count
= 1;
4230 dcmd
->flags
= cpu_to_le16(MFI_FRAME_DIR_READ
);
4233 dcmd
->data_xfer_len
= cpu_to_le32(MEGASAS_MAX_PD
* sizeof(struct MR_PD_LIST
));
4234 dcmd
->opcode
= cpu_to_le32(MR_DCMD_PD_LIST_QUERY
);
4235 dcmd
->sgl
.sge32
[0].phys_addr
= cpu_to_le32(ci_h
);
4236 dcmd
->sgl
.sge32
[0].length
= cpu_to_le32(MEGASAS_MAX_PD
* sizeof(struct MR_PD_LIST
));
4238 if (instance
->ctrl_context
&& !instance
->mask_interrupts
)
4239 ret
= megasas_issue_blocked_cmd(instance
, cmd
,
4240 MFI_IO_TIMEOUT_SECS
);
4242 ret
= megasas_issue_polled(instance
, cmd
);
4246 dev_info(&instance
->pdev
->dev
, "MR_DCMD_PD_LIST_QUERY "
4247 "failed/not supported by firmware\n");
4249 if (instance
->ctrl_context
)
4250 megaraid_sas_kill_hba(instance
);
4252 instance
->pd_list_not_supported
= 1;
4256 switch (dcmd_timeout_ocr_possible(instance
)) {
4258 cmd
->flags
|= DRV_DCMD_SKIP_REFIRE
;
4260 * DCMD failed from AEN path.
4261 * AEN path already hold reset_mutex to avoid PCI access
4262 * while OCR is in progress.
4264 mutex_unlock(&instance
->reset_mutex
);
4265 megasas_reset_fusion(instance
->host
,
4266 MFI_IO_TIMEOUT_OCR
);
4267 mutex_lock(&instance
->reset_mutex
);
4270 megaraid_sas_kill_hba(instance
);
4272 case IGNORE_TIMEOUT
:
4273 dev_info(&instance
->pdev
->dev
, "Ignore DCMD timeout: %s %d \n",
4274 __func__
, __LINE__
);
4283 if ((le32_to_cpu(ci
->count
) >
4284 (MEGASAS_MAX_PD_CHANNELS
* MEGASAS_MAX_DEV_PER_CHANNEL
)))
4287 memset(instance
->local_pd_list
, 0,
4288 MEGASAS_MAX_PD
* sizeof(struct megasas_pd_list
));
4290 for (pd_index
= 0; pd_index
< le32_to_cpu(ci
->count
); pd_index
++) {
4291 instance
->local_pd_list
[le16_to_cpu(pd_addr
->deviceId
)].tid
=
4292 le16_to_cpu(pd_addr
->deviceId
);
4293 instance
->local_pd_list
[le16_to_cpu(pd_addr
->deviceId
)].driveType
=
4294 pd_addr
->scsiDevType
;
4295 instance
->local_pd_list
[le16_to_cpu(pd_addr
->deviceId
)].driveState
=
4300 memcpy(instance
->pd_list
, instance
->local_pd_list
,
4301 sizeof(instance
->pd_list
));
4306 pci_free_consistent(instance
->pdev
,
4307 MEGASAS_MAX_PD
* sizeof(struct MR_PD_LIST
),
4310 if (ret
!= DCMD_TIMEOUT
)
4311 megasas_return_cmd(instance
, cmd
);
4317 * megasas_get_ld_list_info - Returns FW's ld_list structure
4318 * @instance: Adapter soft state
4319 * @ld_list: ld_list structure
4321 * Issues an internal command (DCMD) to get the FW's controller PD
4322 * list structure. This information is mainly used to find out SYSTEM
4323 * supported by the FW.
4326 megasas_get_ld_list(struct megasas_instance
*instance
)
4328 int ret
= 0, ld_index
= 0, ids
= 0;
4329 struct megasas_cmd
*cmd
;
4330 struct megasas_dcmd_frame
*dcmd
;
4331 struct MR_LD_LIST
*ci
;
4332 dma_addr_t ci_h
= 0;
4335 cmd
= megasas_get_cmd(instance
);
4338 dev_printk(KERN_DEBUG
, &instance
->pdev
->dev
, "megasas_get_ld_list: Failed to get cmd\n");
4342 dcmd
= &cmd
->frame
->dcmd
;
4344 ci
= pci_alloc_consistent(instance
->pdev
,
4345 sizeof(struct MR_LD_LIST
),
4349 dev_printk(KERN_DEBUG
, &instance
->pdev
->dev
, "Failed to alloc mem in get_ld_list\n");
4350 megasas_return_cmd(instance
, cmd
);
4354 memset(ci
, 0, sizeof(*ci
));
4355 memset(dcmd
->mbox
.b
, 0, MFI_MBOX_SIZE
);
4357 if (instance
->supportmax256vd
)
4358 dcmd
->mbox
.b
[0] = 1;
4359 dcmd
->cmd
= MFI_CMD_DCMD
;
4360 dcmd
->cmd_status
= MFI_STAT_INVALID_STATUS
;
4361 dcmd
->sge_count
= 1;
4362 dcmd
->flags
= cpu_to_le16(MFI_FRAME_DIR_READ
);
4364 dcmd
->data_xfer_len
= cpu_to_le32(sizeof(struct MR_LD_LIST
));
4365 dcmd
->opcode
= cpu_to_le32(MR_DCMD_LD_GET_LIST
);
4366 dcmd
->sgl
.sge32
[0].phys_addr
= cpu_to_le32(ci_h
);
4367 dcmd
->sgl
.sge32
[0].length
= cpu_to_le32(sizeof(struct MR_LD_LIST
));
4370 if (instance
->ctrl_context
&& !instance
->mask_interrupts
)
4371 ret
= megasas_issue_blocked_cmd(instance
, cmd
,
4372 MFI_IO_TIMEOUT_SECS
);
4374 ret
= megasas_issue_polled(instance
, cmd
);
4376 ld_count
= le32_to_cpu(ci
->ldCount
);
4380 megaraid_sas_kill_hba(instance
);
4384 switch (dcmd_timeout_ocr_possible(instance
)) {
4386 cmd
->flags
|= DRV_DCMD_SKIP_REFIRE
;
4388 * DCMD failed from AEN path.
4389 * AEN path already hold reset_mutex to avoid PCI access
4390 * while OCR is in progress.
4392 mutex_unlock(&instance
->reset_mutex
);
4393 megasas_reset_fusion(instance
->host
,
4394 MFI_IO_TIMEOUT_OCR
);
4395 mutex_lock(&instance
->reset_mutex
);
4398 megaraid_sas_kill_hba(instance
);
4400 case IGNORE_TIMEOUT
:
4401 dev_info(&instance
->pdev
->dev
, "Ignore DCMD timeout: %s %d\n",
4402 __func__
, __LINE__
);
4409 if (ld_count
> instance
->fw_supported_vd_count
)
4412 memset(instance
->ld_ids
, 0xff, MAX_LOGICAL_DRIVES_EXT
);
4414 for (ld_index
= 0; ld_index
< ld_count
; ld_index
++) {
4415 if (ci
->ldList
[ld_index
].state
!= 0) {
4416 ids
= ci
->ldList
[ld_index
].ref
.targetId
;
4417 instance
->ld_ids
[ids
] = ci
->ldList
[ld_index
].ref
.targetId
;
4424 pci_free_consistent(instance
->pdev
, sizeof(struct MR_LD_LIST
), ci
, ci_h
);
4426 if (ret
!= DCMD_TIMEOUT
)
4427 megasas_return_cmd(instance
, cmd
);
4433 * megasas_ld_list_query - Returns FW's ld_list structure
4434 * @instance: Adapter soft state
4435 * @ld_list: ld_list structure
4437 * Issues an internal command (DCMD) to get the FW's controller PD
4438 * list structure. This information is mainly used to find out SYSTEM
4439 * supported by the FW.
4442 megasas_ld_list_query(struct megasas_instance
*instance
, u8 query_type
)
4444 int ret
= 0, ld_index
= 0, ids
= 0;
4445 struct megasas_cmd
*cmd
;
4446 struct megasas_dcmd_frame
*dcmd
;
4447 struct MR_LD_TARGETID_LIST
*ci
;
4448 dma_addr_t ci_h
= 0;
4451 cmd
= megasas_get_cmd(instance
);
4454 dev_warn(&instance
->pdev
->dev
,
4455 "megasas_ld_list_query: Failed to get cmd\n");
4459 dcmd
= &cmd
->frame
->dcmd
;
4461 ci
= pci_alloc_consistent(instance
->pdev
,
4462 sizeof(struct MR_LD_TARGETID_LIST
), &ci_h
);
4465 dev_warn(&instance
->pdev
->dev
,
4466 "Failed to alloc mem for ld_list_query\n");
4467 megasas_return_cmd(instance
, cmd
);
4471 memset(ci
, 0, sizeof(*ci
));
4472 memset(dcmd
->mbox
.b
, 0, MFI_MBOX_SIZE
);
4474 dcmd
->mbox
.b
[0] = query_type
;
4475 if (instance
->supportmax256vd
)
4476 dcmd
->mbox
.b
[2] = 1;
4478 dcmd
->cmd
= MFI_CMD_DCMD
;
4479 dcmd
->cmd_status
= MFI_STAT_INVALID_STATUS
;
4480 dcmd
->sge_count
= 1;
4481 dcmd
->flags
= cpu_to_le16(MFI_FRAME_DIR_READ
);
4483 dcmd
->data_xfer_len
= cpu_to_le32(sizeof(struct MR_LD_TARGETID_LIST
));
4484 dcmd
->opcode
= cpu_to_le32(MR_DCMD_LD_LIST_QUERY
);
4485 dcmd
->sgl
.sge32
[0].phys_addr
= cpu_to_le32(ci_h
);
4486 dcmd
->sgl
.sge32
[0].length
= cpu_to_le32(sizeof(struct MR_LD_TARGETID_LIST
));
4489 if (instance
->ctrl_context
&& !instance
->mask_interrupts
)
4490 ret
= megasas_issue_blocked_cmd(instance
, cmd
, MFI_IO_TIMEOUT_SECS
);
4492 ret
= megasas_issue_polled(instance
, cmd
);
4496 dev_info(&instance
->pdev
->dev
,
4497 "DCMD not supported by firmware - %s %d\n",
4498 __func__
, __LINE__
);
4499 ret
= megasas_get_ld_list(instance
);
4502 switch (dcmd_timeout_ocr_possible(instance
)) {
4504 cmd
->flags
|= DRV_DCMD_SKIP_REFIRE
;
4506 * DCMD failed from AEN path.
4507 * AEN path already hold reset_mutex to avoid PCI access
4508 * while OCR is in progress.
4510 mutex_unlock(&instance
->reset_mutex
);
4511 megasas_reset_fusion(instance
->host
,
4512 MFI_IO_TIMEOUT_OCR
);
4513 mutex_lock(&instance
->reset_mutex
);
4516 megaraid_sas_kill_hba(instance
);
4518 case IGNORE_TIMEOUT
:
4519 dev_info(&instance
->pdev
->dev
, "Ignore DCMD timeout: %s %d\n",
4520 __func__
, __LINE__
);
4526 tgtid_count
= le32_to_cpu(ci
->count
);
4528 if ((tgtid_count
> (instance
->fw_supported_vd_count
)))
4531 memset(instance
->ld_ids
, 0xff, MEGASAS_MAX_LD_IDS
);
4532 for (ld_index
= 0; ld_index
< tgtid_count
; ld_index
++) {
4533 ids
= ci
->targetId
[ld_index
];
4534 instance
->ld_ids
[ids
] = ci
->targetId
[ld_index
];
4540 pci_free_consistent(instance
->pdev
, sizeof(struct MR_LD_TARGETID_LIST
),
4543 if (ret
!= DCMD_TIMEOUT
)
4544 megasas_return_cmd(instance
, cmd
);
4550 * megasas_update_ext_vd_details : Update details w.r.t Extended VD
4551 * instance : Controller's instance
4553 static void megasas_update_ext_vd_details(struct megasas_instance
*instance
)
4555 struct fusion_context
*fusion
;
4556 u32 ventura_map_sz
= 0;
4558 fusion
= instance
->ctrl_context
;
4559 /* For MFI based controllers return dummy success */
4563 instance
->supportmax256vd
=
4564 instance
->ctrl_info
->adapterOperations3
.supportMaxExtLDs
;
4565 /* Below is additional check to address future FW enhancement */
4566 if (instance
->ctrl_info
->max_lds
> 64)
4567 instance
->supportmax256vd
= 1;
4569 instance
->drv_supported_vd_count
= MEGASAS_MAX_LD_CHANNELS
4570 * MEGASAS_MAX_DEV_PER_CHANNEL
;
4571 instance
->drv_supported_pd_count
= MEGASAS_MAX_PD_CHANNELS
4572 * MEGASAS_MAX_DEV_PER_CHANNEL
;
4573 if (instance
->supportmax256vd
) {
4574 instance
->fw_supported_vd_count
= MAX_LOGICAL_DRIVES_EXT
;
4575 instance
->fw_supported_pd_count
= MAX_PHYSICAL_DEVICES
;
4577 instance
->fw_supported_vd_count
= MAX_LOGICAL_DRIVES
;
4578 instance
->fw_supported_pd_count
= MAX_PHYSICAL_DEVICES
;
4581 dev_info(&instance
->pdev
->dev
,
4582 "firmware type\t: %s\n",
4583 instance
->supportmax256vd
? "Extended VD(240 VD)firmware" :
4584 "Legacy(64 VD) firmware");
4586 if (instance
->max_raid_mapsize
) {
4587 ventura_map_sz
= instance
->max_raid_mapsize
*
4588 MR_MIN_MAP_SIZE
; /* 64k */
4589 fusion
->current_map_sz
= ventura_map_sz
;
4590 fusion
->max_map_sz
= ventura_map_sz
;
4592 fusion
->old_map_sz
= sizeof(struct MR_FW_RAID_MAP
) +
4593 (sizeof(struct MR_LD_SPAN_MAP
) *
4594 (instance
->fw_supported_vd_count
- 1));
4595 fusion
->new_map_sz
= sizeof(struct MR_FW_RAID_MAP_EXT
);
4597 fusion
->max_map_sz
=
4598 max(fusion
->old_map_sz
, fusion
->new_map_sz
);
4600 if (instance
->supportmax256vd
)
4601 fusion
->current_map_sz
= fusion
->new_map_sz
;
4603 fusion
->current_map_sz
= fusion
->old_map_sz
;
4605 /* irrespective of FW raid maps, driver raid map is constant */
4606 fusion
->drv_map_sz
= sizeof(struct MR_DRV_RAID_MAP_ALL
);
4610 * megasas_get_controller_info - Returns FW's controller structure
4611 * @instance: Adapter soft state
4613 * Issues an internal command (DCMD) to get the FW's controller structure.
4614 * This information is mainly used to find out the maximum IO transfer per
4615 * command supported by the FW.
4618 megasas_get_ctrl_info(struct megasas_instance
*instance
)
4621 struct megasas_cmd
*cmd
;
4622 struct megasas_dcmd_frame
*dcmd
;
4623 struct megasas_ctrl_info
*ci
;
4624 struct megasas_ctrl_info
*ctrl_info
;
4625 dma_addr_t ci_h
= 0;
4627 ctrl_info
= instance
->ctrl_info
;
4629 cmd
= megasas_get_cmd(instance
);
4632 dev_printk(KERN_DEBUG
, &instance
->pdev
->dev
, "Failed to get a free cmd\n");
4636 dcmd
= &cmd
->frame
->dcmd
;
4638 ci
= pci_alloc_consistent(instance
->pdev
,
4639 sizeof(struct megasas_ctrl_info
), &ci_h
);
4642 dev_printk(KERN_DEBUG
, &instance
->pdev
->dev
, "Failed to alloc mem for ctrl info\n");
4643 megasas_return_cmd(instance
, cmd
);
4647 memset(ci
, 0, sizeof(*ci
));
4648 memset(dcmd
->mbox
.b
, 0, MFI_MBOX_SIZE
);
4650 dcmd
->cmd
= MFI_CMD_DCMD
;
4651 dcmd
->cmd_status
= MFI_STAT_INVALID_STATUS
;
4652 dcmd
->sge_count
= 1;
4653 dcmd
->flags
= cpu_to_le16(MFI_FRAME_DIR_READ
);
4656 dcmd
->data_xfer_len
= cpu_to_le32(sizeof(struct megasas_ctrl_info
));
4657 dcmd
->opcode
= cpu_to_le32(MR_DCMD_CTRL_GET_INFO
);
4658 dcmd
->sgl
.sge32
[0].phys_addr
= cpu_to_le32(ci_h
);
4659 dcmd
->sgl
.sge32
[0].length
= cpu_to_le32(sizeof(struct megasas_ctrl_info
));
4660 dcmd
->mbox
.b
[0] = 1;
4662 if (instance
->ctrl_context
&& !instance
->mask_interrupts
)
4663 ret
= megasas_issue_blocked_cmd(instance
, cmd
, MFI_IO_TIMEOUT_SECS
);
4665 ret
= megasas_issue_polled(instance
, cmd
);
4669 memcpy(ctrl_info
, ci
, sizeof(struct megasas_ctrl_info
));
4670 /* Save required controller information in
4671 * CPU endianness format.
4673 le32_to_cpus((u32
*)&ctrl_info
->properties
.OnOffProperties
);
4674 le32_to_cpus((u32
*)&ctrl_info
->adapterOperations2
);
4675 le32_to_cpus((u32
*)&ctrl_info
->adapterOperations3
);
4676 le16_to_cpus((u16
*)&ctrl_info
->adapter_operations4
);
4678 /* Update the latest Ext VD info.
4679 * From Init path, store current firmware details.
4680 * From OCR path, detect any firmware properties changes.
4681 * in case of Firmware upgrade without system reboot.
4683 megasas_update_ext_vd_details(instance
);
4684 instance
->use_seqnum_jbod_fp
=
4685 ctrl_info
->adapterOperations3
.useSeqNumJbodFP
;
4686 instance
->support_morethan256jbod
=
4687 ctrl_info
->adapter_operations4
.support_pd_map_target_id
;
4689 /*Check whether controller is iMR or MR */
4690 instance
->is_imr
= (ctrl_info
->memory_size
? 0 : 1);
4691 dev_info(&instance
->pdev
->dev
,
4692 "controller type\t: %s(%dMB)\n",
4693 instance
->is_imr
? "iMR" : "MR",
4694 le16_to_cpu(ctrl_info
->memory_size
));
4696 instance
->disableOnlineCtrlReset
=
4697 ctrl_info
->properties
.OnOffProperties
.disableOnlineCtrlReset
;
4698 instance
->secure_jbod_support
=
4699 ctrl_info
->adapterOperations3
.supportSecurityonJBOD
;
4700 dev_info(&instance
->pdev
->dev
, "Online Controller Reset(OCR)\t: %s\n",
4701 instance
->disableOnlineCtrlReset
? "Disabled" : "Enabled");
4702 dev_info(&instance
->pdev
->dev
, "Secure JBOD support\t: %s\n",
4703 instance
->secure_jbod_support
? "Yes" : "No");
4707 switch (dcmd_timeout_ocr_possible(instance
)) {
4709 cmd
->flags
|= DRV_DCMD_SKIP_REFIRE
;
4710 megasas_reset_fusion(instance
->host
,
4711 MFI_IO_TIMEOUT_OCR
);
4714 megaraid_sas_kill_hba(instance
);
4716 case IGNORE_TIMEOUT
:
4717 dev_info(&instance
->pdev
->dev
, "Ignore DCMD timeout: %s %d\n",
4718 __func__
, __LINE__
);
4722 megaraid_sas_kill_hba(instance
);
4727 pci_free_consistent(instance
->pdev
, sizeof(struct megasas_ctrl_info
),
4730 megasas_return_cmd(instance
, cmd
);
4737 * megasas_set_crash_dump_params - Sends address of crash dump DMA buffer
4740 * @instance: Adapter soft state
4741 * @crash_buf_state - tell FW to turn ON/OFF crash dump feature
4742 MR_CRASH_BUF_TURN_OFF = 0
4743 MR_CRASH_BUF_TURN_ON = 1
4744 * @return 0 on success non-zero on failure.
4745 * Issues an internal command (DCMD) to set parameters for crash dump feature.
4746 * Driver will send address of crash dump DMA buffer and set mbox to tell FW
4747 * that driver supports crash dump feature. This DCMD will be sent only if
4748 * crash dump feature is supported by the FW.
4751 int megasas_set_crash_dump_params(struct megasas_instance
*instance
,
4755 struct megasas_cmd
*cmd
;
4756 struct megasas_dcmd_frame
*dcmd
;
4758 cmd
= megasas_get_cmd(instance
);
4761 dev_err(&instance
->pdev
->dev
, "Failed to get a free cmd\n");
4766 dcmd
= &cmd
->frame
->dcmd
;
4768 memset(dcmd
->mbox
.b
, 0, MFI_MBOX_SIZE
);
4769 dcmd
->mbox
.b
[0] = crash_buf_state
;
4770 dcmd
->cmd
= MFI_CMD_DCMD
;
4771 dcmd
->cmd_status
= MFI_STAT_INVALID_STATUS
;
4772 dcmd
->sge_count
= 1;
4773 dcmd
->flags
= cpu_to_le16(MFI_FRAME_DIR_NONE
);
4776 dcmd
->data_xfer_len
= cpu_to_le32(CRASH_DMA_BUF_SIZE
);
4777 dcmd
->opcode
= cpu_to_le32(MR_DCMD_CTRL_SET_CRASH_DUMP_PARAMS
);
4778 dcmd
->sgl
.sge32
[0].phys_addr
= cpu_to_le32(instance
->crash_dump_h
);
4779 dcmd
->sgl
.sge32
[0].length
= cpu_to_le32(CRASH_DMA_BUF_SIZE
);
4781 if (instance
->ctrl_context
&& !instance
->mask_interrupts
)
4782 ret
= megasas_issue_blocked_cmd(instance
, cmd
, MFI_IO_TIMEOUT_SECS
);
4784 ret
= megasas_issue_polled(instance
, cmd
);
4786 if (ret
== DCMD_TIMEOUT
) {
4787 switch (dcmd_timeout_ocr_possible(instance
)) {
4789 cmd
->flags
|= DRV_DCMD_SKIP_REFIRE
;
4790 megasas_reset_fusion(instance
->host
,
4791 MFI_IO_TIMEOUT_OCR
);
4794 megaraid_sas_kill_hba(instance
);
4796 case IGNORE_TIMEOUT
:
4797 dev_info(&instance
->pdev
->dev
, "Ignore DCMD timeout: %s %d\n",
4798 __func__
, __LINE__
);
4802 megasas_return_cmd(instance
, cmd
);
4808 * megasas_issue_init_mfi - Initializes the FW
4809 * @instance: Adapter soft state
4811 * Issues the INIT MFI cmd
4814 megasas_issue_init_mfi(struct megasas_instance
*instance
)
4817 struct megasas_cmd
*cmd
;
4818 struct megasas_init_frame
*init_frame
;
4819 struct megasas_init_queue_info
*initq_info
;
4820 dma_addr_t init_frame_h
;
4821 dma_addr_t initq_info_h
;
4824 * Prepare a init frame. Note the init frame points to queue info
4825 * structure. Each frame has SGL allocated after first 64 bytes. For
4826 * this frame - since we don't need any SGL - we use SGL's space as
4827 * queue info structure
4829 * We will not get a NULL command below. We just created the pool.
4831 cmd
= megasas_get_cmd(instance
);
4833 init_frame
= (struct megasas_init_frame
*)cmd
->frame
;
4834 initq_info
= (struct megasas_init_queue_info
*)
4835 ((unsigned long)init_frame
+ 64);
4837 init_frame_h
= cmd
->frame_phys_addr
;
4838 initq_info_h
= init_frame_h
+ 64;
4840 context
= init_frame
->context
;
4841 memset(init_frame
, 0, MEGAMFI_FRAME_SIZE
);
4842 memset(initq_info
, 0, sizeof(struct megasas_init_queue_info
));
4843 init_frame
->context
= context
;
4845 initq_info
->reply_queue_entries
= cpu_to_le32(instance
->max_fw_cmds
+ 1);
4846 initq_info
->reply_queue_start_phys_addr_lo
= cpu_to_le32(instance
->reply_queue_h
);
4848 initq_info
->producer_index_phys_addr_lo
= cpu_to_le32(instance
->producer_h
);
4849 initq_info
->consumer_index_phys_addr_lo
= cpu_to_le32(instance
->consumer_h
);
4851 init_frame
->cmd
= MFI_CMD_INIT
;
4852 init_frame
->cmd_status
= MFI_STAT_INVALID_STATUS
;
4853 init_frame
->queue_info_new_phys_addr_lo
=
4854 cpu_to_le32(lower_32_bits(initq_info_h
));
4855 init_frame
->queue_info_new_phys_addr_hi
=
4856 cpu_to_le32(upper_32_bits(initq_info_h
));
4858 init_frame
->data_xfer_len
= cpu_to_le32(sizeof(struct megasas_init_queue_info
));
4861 * disable the intr before firing the init frame to FW
4863 instance
->instancet
->disable_intr(instance
);
4866 * Issue the init frame in polled mode
4869 if (megasas_issue_polled(instance
, cmd
)) {
4870 dev_err(&instance
->pdev
->dev
, "Failed to init firmware\n");
4871 megasas_return_cmd(instance
, cmd
);
4875 megasas_return_cmd(instance
, cmd
);
4884 megasas_init_adapter_mfi(struct megasas_instance
*instance
)
4886 struct megasas_register_set __iomem
*reg_set
;
4890 reg_set
= instance
->reg_set
;
4893 * Get various operational parameters from status register
4895 instance
->max_fw_cmds
= instance
->instancet
->read_fw_status_reg(reg_set
) & 0x00FFFF;
4897 * Reduce the max supported cmds by 1. This is to ensure that the
4898 * reply_q_sz (1 more than the max cmd that driver may send)
4899 * does not exceed max cmds that the FW can support
4901 instance
->max_fw_cmds
= instance
->max_fw_cmds
-1;
4902 instance
->max_mfi_cmds
= instance
->max_fw_cmds
;
4903 instance
->max_num_sge
= (instance
->instancet
->read_fw_status_reg(reg_set
) & 0xFF0000) >>
4906 * For MFI skinny adapters, MEGASAS_SKINNY_INT_CMDS commands
4907 * are reserved for IOCTL + driver's internal DCMDs.
4909 if ((instance
->pdev
->device
== PCI_DEVICE_ID_LSI_SAS0073SKINNY
) ||
4910 (instance
->pdev
->device
== PCI_DEVICE_ID_LSI_SAS0071SKINNY
)) {
4911 instance
->max_scsi_cmds
= (instance
->max_fw_cmds
-
4912 MEGASAS_SKINNY_INT_CMDS
);
4913 sema_init(&instance
->ioctl_sem
, MEGASAS_SKINNY_INT_CMDS
);
4915 instance
->max_scsi_cmds
= (instance
->max_fw_cmds
-
4917 sema_init(&instance
->ioctl_sem
, (MEGASAS_MFI_IOCTL_CMDS
));
4920 instance
->cur_can_queue
= instance
->max_scsi_cmds
;
4922 * Create a pool of commands
4924 if (megasas_alloc_cmds(instance
))
4925 goto fail_alloc_cmds
;
4928 * Allocate memory for reply queue. Length of reply queue should
4929 * be _one_ more than the maximum commands handled by the firmware.
4931 * Note: When FW completes commands, it places corresponding contex
4932 * values in this circular reply queue. This circular queue is a fairly
4933 * typical producer-consumer queue. FW is the producer (of completed
4934 * commands) and the driver is the consumer.
4936 context_sz
= sizeof(u32
);
4937 reply_q_sz
= context_sz
* (instance
->max_fw_cmds
+ 1);
4939 instance
->reply_queue
= pci_alloc_consistent(instance
->pdev
,
4941 &instance
->reply_queue_h
);
4943 if (!instance
->reply_queue
) {
4944 dev_printk(KERN_DEBUG
, &instance
->pdev
->dev
, "Out of DMA mem for reply queue\n");
4945 goto fail_reply_queue
;
4948 if (megasas_issue_init_mfi(instance
))
4951 if (megasas_get_ctrl_info(instance
)) {
4952 dev_err(&instance
->pdev
->dev
, "(%d): Could get controller info "
4953 "Fail from %s %d\n", instance
->unique_id
,
4954 __func__
, __LINE__
);
4958 instance
->fw_support_ieee
= 0;
4959 instance
->fw_support_ieee
=
4960 (instance
->instancet
->read_fw_status_reg(reg_set
) &
4963 dev_notice(&instance
->pdev
->dev
, "megasas_init_mfi: fw_support_ieee=%d",
4964 instance
->fw_support_ieee
);
4966 if (instance
->fw_support_ieee
)
4967 instance
->flag_ieee
= 1;
4973 pci_free_consistent(instance
->pdev
, reply_q_sz
,
4974 instance
->reply_queue
, instance
->reply_queue_h
);
4976 megasas_free_cmds(instance
);
4983 * megasas_setup_irqs_ioapic - register legacy interrupts.
4984 * @instance: Adapter soft state
4986 * Do not enable interrupt, only setup ISRs.
4988 * Return 0 on success.
4991 megasas_setup_irqs_ioapic(struct megasas_instance
*instance
)
4993 struct pci_dev
*pdev
;
4995 pdev
= instance
->pdev
;
4996 instance
->irq_context
[0].instance
= instance
;
4997 instance
->irq_context
[0].MSIxIndex
= 0;
4998 if (request_irq(pci_irq_vector(pdev
, 0),
4999 instance
->instancet
->service_isr
, IRQF_SHARED
,
5000 "megasas", &instance
->irq_context
[0])) {
5001 dev_err(&instance
->pdev
->dev
,
5002 "Failed to register IRQ from %s %d\n",
5003 __func__
, __LINE__
);
5010 * megasas_setup_irqs_msix - register MSI-x interrupts.
5011 * @instance: Adapter soft state
5012 * @is_probe: Driver probe check
5014 * Do not enable interrupt, only setup ISRs.
5016 * Return 0 on success.
5019 megasas_setup_irqs_msix(struct megasas_instance
*instance
, u8 is_probe
)
5022 struct pci_dev
*pdev
;
5024 pdev
= instance
->pdev
;
5027 for (i
= 0; i
< instance
->msix_vectors
; i
++) {
5028 instance
->irq_context
[i
].instance
= instance
;
5029 instance
->irq_context
[i
].MSIxIndex
= i
;
5030 if (request_irq(pci_irq_vector(pdev
, i
),
5031 instance
->instancet
->service_isr
, 0, "megasas",
5032 &instance
->irq_context
[i
])) {
5033 dev_err(&instance
->pdev
->dev
,
5034 "Failed to register IRQ for vector %d.\n", i
);
5035 for (j
= 0; j
< i
; j
++)
5036 free_irq(pci_irq_vector(pdev
, j
),
5037 &instance
->irq_context
[j
]);
5038 /* Retry irq register for IO_APIC*/
5039 instance
->msix_vectors
= 0;
5041 pci_free_irq_vectors(instance
->pdev
);
5042 return megasas_setup_irqs_ioapic(instance
);
5052 * megasas_destroy_irqs- unregister interrupts.
5053 * @instance: Adapter soft state
5057 megasas_destroy_irqs(struct megasas_instance
*instance
) {
5061 if (instance
->msix_vectors
)
5062 for (i
= 0; i
< instance
->msix_vectors
; i
++) {
5063 free_irq(pci_irq_vector(instance
->pdev
, i
),
5064 &instance
->irq_context
[i
]);
5067 free_irq(pci_irq_vector(instance
->pdev
, 0),
5068 &instance
->irq_context
[0]);
5072 * megasas_setup_jbod_map - setup jbod map for FP seq_number.
5073 * @instance: Adapter soft state
5074 * @is_probe: Driver probe check
5076 * Return 0 on success.
5079 megasas_setup_jbod_map(struct megasas_instance
*instance
)
5082 struct fusion_context
*fusion
= instance
->ctrl_context
;
5085 pd_seq_map_sz
= sizeof(struct MR_PD_CFG_SEQ_NUM_SYNC
) +
5086 (sizeof(struct MR_PD_CFG_SEQ
) * (MAX_PHYSICAL_DEVICES
- 1));
5088 if (reset_devices
|| !fusion
||
5089 !instance
->ctrl_info
->adapterOperations3
.useSeqNumJbodFP
) {
5090 dev_info(&instance
->pdev
->dev
,
5091 "Jbod map is not supported %s %d\n",
5092 __func__
, __LINE__
);
5093 instance
->use_seqnum_jbod_fp
= false;
5097 if (fusion
->pd_seq_sync
[0])
5100 for (i
= 0; i
< JBOD_MAPS_COUNT
; i
++) {
5101 fusion
->pd_seq_sync
[i
] = dma_alloc_coherent
5102 (&instance
->pdev
->dev
, pd_seq_map_sz
,
5103 &fusion
->pd_seq_phys
[i
], GFP_KERNEL
);
5104 if (!fusion
->pd_seq_sync
[i
]) {
5105 dev_err(&instance
->pdev
->dev
,
5106 "Failed to allocate memory from %s %d\n",
5107 __func__
, __LINE__
);
5109 dma_free_coherent(&instance
->pdev
->dev
,
5110 pd_seq_map_sz
, fusion
->pd_seq_sync
[0],
5111 fusion
->pd_seq_phys
[0]);
5112 fusion
->pd_seq_sync
[0] = NULL
;
5114 instance
->use_seqnum_jbod_fp
= false;
5120 if (!megasas_sync_pd_seq_num(instance
, false) &&
5121 !megasas_sync_pd_seq_num(instance
, true))
5122 instance
->use_seqnum_jbod_fp
= true;
5124 instance
->use_seqnum_jbod_fp
= false;
5128 * megasas_init_fw - Initializes the FW
5129 * @instance: Adapter soft state
5131 * This is the main function for initializing firmware
5134 static int megasas_init_fw(struct megasas_instance
*instance
)
5137 u32 max_sectors_2
, tmp_sectors
, msix_enable
;
5138 u32 scratch_pad_2
, scratch_pad_3
, scratch_pad_4
;
5139 resource_size_t base_addr
;
5140 struct megasas_register_set __iomem
*reg_set
;
5141 struct megasas_ctrl_info
*ctrl_info
= NULL
;
5142 unsigned long bar_list
;
5143 int i
, j
, loop
, fw_msix_count
= 0;
5144 struct IOV_111
*iovPtr
;
5145 struct fusion_context
*fusion
;
5147 fusion
= instance
->ctrl_context
;
5149 /* Find first memory bar */
5150 bar_list
= pci_select_bars(instance
->pdev
, IORESOURCE_MEM
);
5151 instance
->bar
= find_first_bit(&bar_list
, BITS_PER_LONG
);
5152 if (pci_request_selected_regions(instance
->pdev
, 1<<instance
->bar
,
5154 dev_printk(KERN_DEBUG
, &instance
->pdev
->dev
, "IO memory region busy!\n");
5158 base_addr
= pci_resource_start(instance
->pdev
, instance
->bar
);
5159 instance
->reg_set
= ioremap_nocache(base_addr
, 8192);
5161 if (!instance
->reg_set
) {
5162 dev_printk(KERN_DEBUG
, &instance
->pdev
->dev
, "Failed to map IO mem\n");
5166 reg_set
= instance
->reg_set
;
5169 instance
->instancet
= &megasas_instance_template_fusion
;
5171 switch (instance
->pdev
->device
) {
5172 case PCI_DEVICE_ID_LSI_SAS1078R
:
5173 case PCI_DEVICE_ID_LSI_SAS1078DE
:
5174 instance
->instancet
= &megasas_instance_template_ppc
;
5176 case PCI_DEVICE_ID_LSI_SAS1078GEN2
:
5177 case PCI_DEVICE_ID_LSI_SAS0079GEN2
:
5178 instance
->instancet
= &megasas_instance_template_gen2
;
5180 case PCI_DEVICE_ID_LSI_SAS0073SKINNY
:
5181 case PCI_DEVICE_ID_LSI_SAS0071SKINNY
:
5182 instance
->instancet
= &megasas_instance_template_skinny
;
5184 case PCI_DEVICE_ID_LSI_SAS1064R
:
5185 case PCI_DEVICE_ID_DELL_PERC5
:
5187 instance
->instancet
= &megasas_instance_template_xscale
;
5188 instance
->pd_list_not_supported
= 1;
5193 if (megasas_transition_to_ready(instance
, 0)) {
5194 atomic_set(&instance
->fw_reset_no_pci_access
, 1);
5195 instance
->instancet
->adp_reset
5196 (instance
, instance
->reg_set
);
5197 atomic_set(&instance
->fw_reset_no_pci_access
, 0);
5198 dev_info(&instance
->pdev
->dev
,
5199 "FW restarted successfully from %s!\n",
5202 /*waitting for about 30 second before retry*/
5205 if (megasas_transition_to_ready(instance
, 0))
5206 goto fail_ready_state
;
5209 if (instance
->is_ventura
) {
5211 readl(&instance
->reg_set
->outbound_scratch_pad_3
);
5212 instance
->max_raid_mapsize
= ((scratch_pad_3
>>
5213 MR_MAX_RAID_MAP_SIZE_OFFSET_SHIFT
) &
5214 MR_MAX_RAID_MAP_SIZE_MASK
);
5217 /* Check if MSI-X is supported while in ready state */
5218 msix_enable
= (instance
->instancet
->read_fw_status_reg(reg_set
) &
5220 if (msix_enable
&& !msix_disable
) {
5221 int irq_flags
= PCI_IRQ_MSIX
;
5223 scratch_pad_2
= readl
5224 (&instance
->reg_set
->outbound_scratch_pad_2
);
5225 /* Check max MSI-X vectors */
5227 if (fusion
->adapter_type
== THUNDERBOLT_SERIES
) { /* Thunderbolt Series*/
5228 instance
->msix_vectors
= (scratch_pad_2
5229 & MR_MAX_REPLY_QUEUES_OFFSET
) + 1;
5230 fw_msix_count
= instance
->msix_vectors
;
5231 } else { /* Invader series supports more than 8 MSI-x vectors*/
5232 instance
->msix_vectors
= ((scratch_pad_2
5233 & MR_MAX_REPLY_QUEUES_EXT_OFFSET
)
5234 >> MR_MAX_REPLY_QUEUES_EXT_OFFSET_SHIFT
) + 1;
5235 if (instance
->msix_vectors
> 16)
5236 instance
->msix_combined
= true;
5239 instance
->is_rdpq
= (scratch_pad_2
& MR_RDPQ_MODE_OFFSET
) ?
5241 fw_msix_count
= instance
->msix_vectors
;
5242 /* Save 1-15 reply post index address to local memory
5243 * Index 0 is already saved from reg offset
5244 * MPI2_REPLY_POST_HOST_INDEX_OFFSET
5246 for (loop
= 1; loop
< MR_MAX_MSIX_REG_ARRAY
; loop
++) {
5247 instance
->reply_post_host_index_addr
[loop
] =
5249 ((u8 __iomem
*)instance
->reg_set
+
5250 MPI2_SUP_REPLY_POST_HOST_INDEX_OFFSET
5255 instance
->msix_vectors
= min(msix_vectors
,
5256 instance
->msix_vectors
);
5257 } else /* MFI adapters */
5258 instance
->msix_vectors
= 1;
5259 /* Don't bother allocating more MSI-X vectors than cpus */
5260 instance
->msix_vectors
= min(instance
->msix_vectors
,
5261 (unsigned int)num_online_cpus());
5262 if (smp_affinity_enable
)
5263 irq_flags
|= PCI_IRQ_AFFINITY
;
5264 i
= pci_alloc_irq_vectors(instance
->pdev
, 1,
5265 instance
->msix_vectors
, irq_flags
);
5267 instance
->msix_vectors
= i
;
5269 instance
->msix_vectors
= 0;
5272 * MSI-X host index 0 is common for all adapter.
5273 * It is used for all MPT based Adapters.
5275 if (instance
->msix_combined
) {
5276 instance
->reply_post_host_index_addr
[0] =
5277 (u32
*)((u8
*)instance
->reg_set
+
5278 MPI2_SUP_REPLY_POST_HOST_INDEX_OFFSET
);
5280 instance
->reply_post_host_index_addr
[0] =
5281 (u32
*)((u8
*)instance
->reg_set
+
5282 MPI2_REPLY_POST_HOST_INDEX_OFFSET
);
5285 if (!instance
->msix_vectors
) {
5286 i
= pci_alloc_irq_vectors(instance
->pdev
, 1, 1, PCI_IRQ_LEGACY
);
5288 goto fail_setup_irqs
;
5291 dev_info(&instance
->pdev
->dev
,
5292 "firmware supports msix\t: (%d)", fw_msix_count
);
5293 dev_info(&instance
->pdev
->dev
,
5294 "current msix/online cpus\t: (%d/%d)\n",
5295 instance
->msix_vectors
, (unsigned int)num_online_cpus());
5296 dev_info(&instance
->pdev
->dev
,
5297 "RDPQ mode\t: (%s)\n", instance
->is_rdpq
? "enabled" : "disabled");
5299 tasklet_init(&instance
->isr_tasklet
, instance
->instancet
->tasklet
,
5300 (unsigned long)instance
);
5302 instance
->ctrl_info
= kzalloc(sizeof(struct megasas_ctrl_info
),
5304 if (instance
->ctrl_info
== NULL
)
5305 goto fail_init_adapter
;
5308 * Below are default value for legacy Firmware.
5309 * non-fusion based controllers
5311 instance
->fw_supported_vd_count
= MAX_LOGICAL_DRIVES
;
5312 instance
->fw_supported_pd_count
= MAX_PHYSICAL_DEVICES
;
5313 /* Get operational params, sge flags, send init cmd to controller */
5314 if (instance
->instancet
->init_adapter(instance
))
5315 goto fail_init_adapter
;
5317 if (instance
->is_ventura
) {
5319 readl(&instance
->reg_set
->outbound_scratch_pad_4
);
5320 if ((scratch_pad_4
& MR_NVME_PAGE_SIZE_MASK
) >=
5321 MR_DEFAULT_NVME_PAGE_SHIFT
)
5322 instance
->nvme_page_size
=
5323 (1 << (scratch_pad_4
& MR_NVME_PAGE_SIZE_MASK
));
5325 dev_info(&instance
->pdev
->dev
,
5326 "NVME page size\t: (%d)\n", instance
->nvme_page_size
);
5329 if (instance
->msix_vectors
?
5330 megasas_setup_irqs_msix(instance
, 1) :
5331 megasas_setup_irqs_ioapic(instance
))
5332 goto fail_init_adapter
;
5334 instance
->instancet
->enable_intr(instance
);
5336 dev_info(&instance
->pdev
->dev
, "INIT adapter done\n");
5338 megasas_setup_jbod_map(instance
);
5341 * the following function will get the PD LIST.
5343 memset(instance
->pd_list
, 0,
5344 (MEGASAS_MAX_PD
* sizeof(struct megasas_pd_list
)));
5345 if (megasas_get_pd_list(instance
) < 0) {
5346 dev_err(&instance
->pdev
->dev
, "failed to get PD list\n");
5347 goto fail_get_ld_pd_list
;
5350 memset(instance
->ld_ids
, 0xff, MEGASAS_MAX_LD_IDS
);
5352 /* stream detection initialization */
5353 if (instance
->is_ventura
&& fusion
) {
5354 fusion
->stream_detect_by_ld
=
5355 kzalloc(sizeof(struct LD_STREAM_DETECT
*)
5356 * MAX_LOGICAL_DRIVES_EXT
,
5358 if (!fusion
->stream_detect_by_ld
) {
5359 dev_err(&instance
->pdev
->dev
,
5360 "unable to allocate stream detection for pool of LDs\n");
5361 goto fail_get_ld_pd_list
;
5363 for (i
= 0; i
< MAX_LOGICAL_DRIVES_EXT
; ++i
) {
5364 fusion
->stream_detect_by_ld
[i
] =
5365 kmalloc(sizeof(struct LD_STREAM_DETECT
),
5367 if (!fusion
->stream_detect_by_ld
[i
]) {
5368 dev_err(&instance
->pdev
->dev
,
5369 "unable to allocate stream detect by LD\n ");
5370 for (j
= 0; j
< i
; ++j
)
5371 kfree(fusion
->stream_detect_by_ld
[j
]);
5372 kfree(fusion
->stream_detect_by_ld
);
5373 fusion
->stream_detect_by_ld
= NULL
;
5374 goto fail_get_ld_pd_list
;
5376 fusion
->stream_detect_by_ld
[i
]->mru_bit_map
5381 if (megasas_ld_list_query(instance
,
5382 MR_LD_QUERY_TYPE_EXPOSED_TO_HOST
))
5383 goto fail_get_ld_pd_list
;
5386 * Compute the max allowed sectors per IO: The controller info has two
5387 * limits on max sectors. Driver should use the minimum of these two.
5389 * 1 << stripe_sz_ops.min = max sectors per strip
5391 * Note that older firmwares ( < FW ver 30) didn't report information
5392 * to calculate max_sectors_1. So the number ended up as zero always.
5395 ctrl_info
= instance
->ctrl_info
;
5397 max_sectors_1
= (1 << ctrl_info
->stripe_sz_ops
.min
) *
5398 le16_to_cpu(ctrl_info
->max_strips_per_io
);
5399 max_sectors_2
= le32_to_cpu(ctrl_info
->max_request_size
);
5401 tmp_sectors
= min_t(u32
, max_sectors_1
, max_sectors_2
);
5403 instance
->peerIsPresent
= ctrl_info
->cluster
.peerIsPresent
;
5404 instance
->passive
= ctrl_info
->cluster
.passive
;
5405 memcpy(instance
->clusterId
, ctrl_info
->clusterId
, sizeof(instance
->clusterId
));
5406 instance
->UnevenSpanSupport
=
5407 ctrl_info
->adapterOperations2
.supportUnevenSpans
;
5408 if (instance
->UnevenSpanSupport
) {
5409 struct fusion_context
*fusion
= instance
->ctrl_context
;
5410 if (MR_ValidateMapInfo(instance
))
5411 fusion
->fast_path_io
= 1;
5413 fusion
->fast_path_io
= 0;
5416 if (ctrl_info
->host_interface
.SRIOV
) {
5417 instance
->requestorId
= ctrl_info
->iov
.requestorId
;
5418 if (instance
->pdev
->device
== PCI_DEVICE_ID_LSI_PLASMA
) {
5419 if (!ctrl_info
->adapterOperations2
.activePassive
)
5420 instance
->PlasmaFW111
= 1;
5422 dev_info(&instance
->pdev
->dev
, "SR-IOV: firmware type: %s\n",
5423 instance
->PlasmaFW111
? "1.11" : "new");
5425 if (instance
->PlasmaFW111
) {
5426 iovPtr
= (struct IOV_111
*)
5427 ((unsigned char *)ctrl_info
+ IOV_111_OFFSET
);
5428 instance
->requestorId
= iovPtr
->requestorId
;
5431 dev_info(&instance
->pdev
->dev
, "SRIOV: VF requestorId %d\n",
5432 instance
->requestorId
);
5435 instance
->crash_dump_fw_support
=
5436 ctrl_info
->adapterOperations3
.supportCrashDump
;
5437 instance
->crash_dump_drv_support
=
5438 (instance
->crash_dump_fw_support
&&
5439 instance
->crash_dump_buf
);
5440 if (instance
->crash_dump_drv_support
)
5441 megasas_set_crash_dump_params(instance
,
5442 MR_CRASH_BUF_TURN_OFF
);
5445 if (instance
->crash_dump_buf
)
5446 pci_free_consistent(instance
->pdev
,
5448 instance
->crash_dump_buf
,
5449 instance
->crash_dump_h
);
5450 instance
->crash_dump_buf
= NULL
;
5454 dev_info(&instance
->pdev
->dev
,
5455 "pci id\t\t: (0x%04x)/(0x%04x)/(0x%04x)/(0x%04x)\n",
5456 le16_to_cpu(ctrl_info
->pci
.vendor_id
),
5457 le16_to_cpu(ctrl_info
->pci
.device_id
),
5458 le16_to_cpu(ctrl_info
->pci
.sub_vendor_id
),
5459 le16_to_cpu(ctrl_info
->pci
.sub_device_id
));
5460 dev_info(&instance
->pdev
->dev
, "unevenspan support : %s\n",
5461 instance
->UnevenSpanSupport
? "yes" : "no");
5462 dev_info(&instance
->pdev
->dev
, "firmware crash dump : %s\n",
5463 instance
->crash_dump_drv_support
? "yes" : "no");
5464 dev_info(&instance
->pdev
->dev
, "jbod sync map : %s\n",
5465 instance
->use_seqnum_jbod_fp
? "yes" : "no");
5468 instance
->max_sectors_per_req
= instance
->max_num_sge
*
5469 SGE_BUFFER_SIZE
/ 512;
5470 if (tmp_sectors
&& (instance
->max_sectors_per_req
> tmp_sectors
))
5471 instance
->max_sectors_per_req
= tmp_sectors
;
5473 /* Check for valid throttlequeuedepth module parameter */
5474 if (throttlequeuedepth
&&
5475 throttlequeuedepth
<= instance
->max_scsi_cmds
)
5476 instance
->throttlequeuedepth
= throttlequeuedepth
;
5478 instance
->throttlequeuedepth
=
5479 MEGASAS_THROTTLE_QUEUE_DEPTH
;
5481 if (resetwaittime
> MEGASAS_RESET_WAIT_TIME
)
5482 resetwaittime
= MEGASAS_RESET_WAIT_TIME
;
5484 if ((scmd_timeout
< 10) || (scmd_timeout
> MEGASAS_DEFAULT_CMD_TIMEOUT
))
5485 scmd_timeout
= MEGASAS_DEFAULT_CMD_TIMEOUT
;
5487 /* Launch SR-IOV heartbeat timer */
5488 if (instance
->requestorId
) {
5489 if (!megasas_sriov_start_heartbeat(instance
, 1))
5490 megasas_start_timer(instance
,
5491 &instance
->sriov_heartbeat_timer
,
5492 megasas_sriov_heartbeat_handler
,
5493 MEGASAS_SRIOV_HEARTBEAT_INTERVAL_VF
);
5495 instance
->skip_heartbeat_timer_del
= 1;
5500 fail_get_ld_pd_list
:
5501 instance
->instancet
->disable_intr(instance
);
5503 megasas_destroy_irqs(instance
);
5505 if (instance
->msix_vectors
)
5506 pci_free_irq_vectors(instance
->pdev
);
5507 instance
->msix_vectors
= 0;
5509 kfree(instance
->ctrl_info
);
5510 instance
->ctrl_info
= NULL
;
5511 iounmap(instance
->reg_set
);
5514 pci_release_selected_regions(instance
->pdev
, 1<<instance
->bar
);
5516 dev_err(&instance
->pdev
->dev
, "Failed from %s %d\n",
5517 __func__
, __LINE__
);
5522 * megasas_release_mfi - Reverses the FW initialization
5523 * @instance: Adapter soft state
5525 static void megasas_release_mfi(struct megasas_instance
*instance
)
5527 u32 reply_q_sz
= sizeof(u32
) *(instance
->max_mfi_cmds
+ 1);
5529 if (instance
->reply_queue
)
5530 pci_free_consistent(instance
->pdev
, reply_q_sz
,
5531 instance
->reply_queue
, instance
->reply_queue_h
);
5533 megasas_free_cmds(instance
);
5535 iounmap(instance
->reg_set
);
5537 pci_release_selected_regions(instance
->pdev
, 1<<instance
->bar
);
5541 * megasas_get_seq_num - Gets latest event sequence numbers
5542 * @instance: Adapter soft state
5543 * @eli: FW event log sequence numbers information
5545 * FW maintains a log of all events in a non-volatile area. Upper layers would
5546 * usually find out the latest sequence number of the events, the seq number at
5547 * the boot etc. They would "read" all the events below the latest seq number
5548 * by issuing a direct fw cmd (DCMD). For the future events (beyond latest seq
5549 * number), they would subsribe to AEN (asynchronous event notification) and
5550 * wait for the events to happen.
5553 megasas_get_seq_num(struct megasas_instance
*instance
,
5554 struct megasas_evt_log_info
*eli
)
5556 struct megasas_cmd
*cmd
;
5557 struct megasas_dcmd_frame
*dcmd
;
5558 struct megasas_evt_log_info
*el_info
;
5559 dma_addr_t el_info_h
= 0;
5561 cmd
= megasas_get_cmd(instance
);
5567 dcmd
= &cmd
->frame
->dcmd
;
5568 el_info
= pci_alloc_consistent(instance
->pdev
,
5569 sizeof(struct megasas_evt_log_info
),
5573 megasas_return_cmd(instance
, cmd
);
5577 memset(el_info
, 0, sizeof(*el_info
));
5578 memset(dcmd
->mbox
.b
, 0, MFI_MBOX_SIZE
);
5580 dcmd
->cmd
= MFI_CMD_DCMD
;
5581 dcmd
->cmd_status
= 0x0;
5582 dcmd
->sge_count
= 1;
5583 dcmd
->flags
= cpu_to_le16(MFI_FRAME_DIR_READ
);
5586 dcmd
->data_xfer_len
= cpu_to_le32(sizeof(struct megasas_evt_log_info
));
5587 dcmd
->opcode
= cpu_to_le32(MR_DCMD_CTRL_EVENT_GET_INFO
);
5588 dcmd
->sgl
.sge32
[0].phys_addr
= cpu_to_le32(el_info_h
);
5589 dcmd
->sgl
.sge32
[0].length
= cpu_to_le32(sizeof(struct megasas_evt_log_info
));
5591 if (megasas_issue_blocked_cmd(instance
, cmd
, MFI_IO_TIMEOUT_SECS
) ==
5594 * Copy the data back into callers buffer
5596 eli
->newest_seq_num
= el_info
->newest_seq_num
;
5597 eli
->oldest_seq_num
= el_info
->oldest_seq_num
;
5598 eli
->clear_seq_num
= el_info
->clear_seq_num
;
5599 eli
->shutdown_seq_num
= el_info
->shutdown_seq_num
;
5600 eli
->boot_seq_num
= el_info
->boot_seq_num
;
5602 dev_err(&instance
->pdev
->dev
, "DCMD failed "
5603 "from %s\n", __func__
);
5605 pci_free_consistent(instance
->pdev
, sizeof(struct megasas_evt_log_info
),
5606 el_info
, el_info_h
);
5608 megasas_return_cmd(instance
, cmd
);
5614 * megasas_register_aen - Registers for asynchronous event notification
5615 * @instance: Adapter soft state
5616 * @seq_num: The starting sequence number
5617 * @class_locale: Class of the event
5619 * This function subscribes for AEN for events beyond the @seq_num. It requests
5620 * to be notified if and only if the event is of type @class_locale
5623 megasas_register_aen(struct megasas_instance
*instance
, u32 seq_num
,
5624 u32 class_locale_word
)
5627 struct megasas_cmd
*cmd
;
5628 struct megasas_dcmd_frame
*dcmd
;
5629 union megasas_evt_class_locale curr_aen
;
5630 union megasas_evt_class_locale prev_aen
;
5633 * If there an AEN pending already (aen_cmd), check if the
5634 * class_locale of that pending AEN is inclusive of the new
5635 * AEN request we currently have. If it is, then we don't have
5636 * to do anything. In other words, whichever events the current
5637 * AEN request is subscribing to, have already been subscribed
5640 * If the old_cmd is _not_ inclusive, then we have to abort
5641 * that command, form a class_locale that is superset of both
5642 * old and current and re-issue to the FW
5645 curr_aen
.word
= class_locale_word
;
5647 if (instance
->aen_cmd
) {
5650 le32_to_cpu(instance
->aen_cmd
->frame
->dcmd
.mbox
.w
[1]);
5653 * A class whose enum value is smaller is inclusive of all
5654 * higher values. If a PROGRESS (= -1) was previously
5655 * registered, then a new registration requests for higher
5656 * classes need not be sent to FW. They are automatically
5659 * Locale numbers don't have such hierarchy. They are bitmap
5662 if ((prev_aen
.members
.class <= curr_aen
.members
.class) &&
5663 !((prev_aen
.members
.locale
& curr_aen
.members
.locale
) ^
5664 curr_aen
.members
.locale
)) {
5666 * Previously issued event registration includes
5667 * current request. Nothing to do.
5671 curr_aen
.members
.locale
|= prev_aen
.members
.locale
;
5673 if (prev_aen
.members
.class < curr_aen
.members
.class)
5674 curr_aen
.members
.class = prev_aen
.members
.class;
5676 instance
->aen_cmd
->abort_aen
= 1;
5677 ret_val
= megasas_issue_blocked_abort_cmd(instance
,
5682 dev_printk(KERN_DEBUG
, &instance
->pdev
->dev
, "Failed to abort "
5683 "previous AEN command\n");
5689 cmd
= megasas_get_cmd(instance
);
5694 dcmd
= &cmd
->frame
->dcmd
;
5696 memset(instance
->evt_detail
, 0, sizeof(struct megasas_evt_detail
));
5699 * Prepare DCMD for aen registration
5701 memset(dcmd
->mbox
.b
, 0, MFI_MBOX_SIZE
);
5703 dcmd
->cmd
= MFI_CMD_DCMD
;
5704 dcmd
->cmd_status
= 0x0;
5705 dcmd
->sge_count
= 1;
5706 dcmd
->flags
= cpu_to_le16(MFI_FRAME_DIR_READ
);
5709 dcmd
->data_xfer_len
= cpu_to_le32(sizeof(struct megasas_evt_detail
));
5710 dcmd
->opcode
= cpu_to_le32(MR_DCMD_CTRL_EVENT_WAIT
);
5711 dcmd
->mbox
.w
[0] = cpu_to_le32(seq_num
);
5712 instance
->last_seq_num
= seq_num
;
5713 dcmd
->mbox
.w
[1] = cpu_to_le32(curr_aen
.word
);
5714 dcmd
->sgl
.sge32
[0].phys_addr
= cpu_to_le32(instance
->evt_detail_h
);
5715 dcmd
->sgl
.sge32
[0].length
= cpu_to_le32(sizeof(struct megasas_evt_detail
));
5717 if (instance
->aen_cmd
!= NULL
) {
5718 megasas_return_cmd(instance
, cmd
);
5723 * Store reference to the cmd used to register for AEN. When an
5724 * application wants us to register for AEN, we have to abort this
5725 * cmd and re-register with a new EVENT LOCALE supplied by that app
5727 instance
->aen_cmd
= cmd
;
5730 * Issue the aen registration frame
5732 instance
->instancet
->issue_dcmd(instance
, cmd
);
5737 /* megasas_get_target_prop - Send DCMD with below details to firmware.
5739 * This DCMD will fetch few properties of LD/system PD defined
5740 * in MR_TARGET_DEV_PROPERTIES. eg. Queue Depth, MDTS value.
5742 * DCMD send by drivers whenever new target is added to the OS.
5744 * dcmd.opcode - MR_DCMD_DEV_GET_TARGET_PROP
5745 * dcmd.mbox.b[0] - DCMD is to be fired for LD or system PD.
5746 * 0 = system PD, 1 = LD.
5747 * dcmd.mbox.s[1] - TargetID for LD/system PD.
5748 * dcmd.sge IN - Pointer to return MR_TARGET_DEV_PROPERTIES.
5750 * @instance: Adapter soft state
5751 * @sdev: OS provided scsi device
5753 * Returns 0 on success non-zero on failure.
5756 megasas_get_target_prop(struct megasas_instance
*instance
,
5757 struct scsi_device
*sdev
)
5760 struct megasas_cmd
*cmd
;
5761 struct megasas_dcmd_frame
*dcmd
;
5762 u16 targetId
= (sdev
->channel
% 2) + sdev
->id
;
5764 cmd
= megasas_get_cmd(instance
);
5767 dev_err(&instance
->pdev
->dev
,
5768 "Failed to get cmd %s\n", __func__
);
5772 dcmd
= &cmd
->frame
->dcmd
;
5774 memset(instance
->tgt_prop
, 0, sizeof(*instance
->tgt_prop
));
5775 memset(dcmd
->mbox
.b
, 0, MFI_MBOX_SIZE
);
5776 dcmd
->mbox
.b
[0] = MEGASAS_IS_LOGICAL(sdev
);
5778 dcmd
->mbox
.s
[1] = cpu_to_le16(targetId
);
5779 dcmd
->cmd
= MFI_CMD_DCMD
;
5780 dcmd
->cmd_status
= 0xFF;
5781 dcmd
->sge_count
= 1;
5782 dcmd
->flags
= cpu_to_le16(MFI_FRAME_DIR_READ
);
5785 dcmd
->data_xfer_len
=
5786 cpu_to_le32(sizeof(struct MR_TARGET_PROPERTIES
));
5787 dcmd
->opcode
= cpu_to_le32(MR_DCMD_DRV_GET_TARGET_PROP
);
5788 dcmd
->sgl
.sge32
[0].phys_addr
=
5789 cpu_to_le32(instance
->tgt_prop_h
);
5790 dcmd
->sgl
.sge32
[0].length
=
5791 cpu_to_le32(sizeof(struct MR_TARGET_PROPERTIES
));
5793 if (instance
->ctrl_context
&& !instance
->mask_interrupts
)
5794 ret
= megasas_issue_blocked_cmd(instance
,
5795 cmd
, MFI_IO_TIMEOUT_SECS
);
5797 ret
= megasas_issue_polled(instance
, cmd
);
5801 switch (dcmd_timeout_ocr_possible(instance
)) {
5803 cmd
->flags
|= DRV_DCMD_SKIP_REFIRE
;
5804 megasas_reset_fusion(instance
->host
,
5805 MFI_IO_TIMEOUT_OCR
);
5808 megaraid_sas_kill_hba(instance
);
5810 case IGNORE_TIMEOUT
:
5811 dev_info(&instance
->pdev
->dev
,
5812 "Ignore DCMD timeout: %s %d\n",
5813 __func__
, __LINE__
);
5819 megasas_return_cmd(instance
, cmd
);
5821 if (ret
!= DCMD_SUCCESS
)
5822 dev_err(&instance
->pdev
->dev
,
5823 "return from %s %d return value %d\n",
5824 __func__
, __LINE__
, ret
);
5830 * megasas_start_aen - Subscribes to AEN during driver load time
5831 * @instance: Adapter soft state
5833 static int megasas_start_aen(struct megasas_instance
*instance
)
5835 struct megasas_evt_log_info eli
;
5836 union megasas_evt_class_locale class_locale
;
5839 * Get the latest sequence number from FW
5841 memset(&eli
, 0, sizeof(eli
));
5843 if (megasas_get_seq_num(instance
, &eli
))
5847 * Register AEN with FW for latest sequence number plus 1
5849 class_locale
.members
.reserved
= 0;
5850 class_locale
.members
.locale
= MR_EVT_LOCALE_ALL
;
5851 class_locale
.members
.class = MR_EVT_CLASS_DEBUG
;
5853 return megasas_register_aen(instance
,
5854 le32_to_cpu(eli
.newest_seq_num
) + 1,
5859 * megasas_io_attach - Attaches this driver to SCSI mid-layer
5860 * @instance: Adapter soft state
5862 static int megasas_io_attach(struct megasas_instance
*instance
)
5864 struct Scsi_Host
*host
= instance
->host
;
5867 * Export parameters required by SCSI mid-layer
5869 host
->unique_id
= instance
->unique_id
;
5870 host
->can_queue
= instance
->max_scsi_cmds
;
5871 host
->this_id
= instance
->init_id
;
5872 host
->sg_tablesize
= instance
->max_num_sge
;
5874 if (instance
->fw_support_ieee
)
5875 instance
->max_sectors_per_req
= MEGASAS_MAX_SECTORS_IEEE
;
5878 * Check if the module parameter value for max_sectors can be used
5880 if (max_sectors
&& max_sectors
< instance
->max_sectors_per_req
)
5881 instance
->max_sectors_per_req
= max_sectors
;
5884 if (((instance
->pdev
->device
==
5885 PCI_DEVICE_ID_LSI_SAS1078GEN2
) ||
5886 (instance
->pdev
->device
==
5887 PCI_DEVICE_ID_LSI_SAS0079GEN2
)) &&
5888 (max_sectors
<= MEGASAS_MAX_SECTORS
)) {
5889 instance
->max_sectors_per_req
= max_sectors
;
5891 dev_info(&instance
->pdev
->dev
, "max_sectors should be > 0"
5892 "and <= %d (or < 1MB for GEN2 controller)\n",
5893 instance
->max_sectors_per_req
);
5898 host
->max_sectors
= instance
->max_sectors_per_req
;
5899 host
->cmd_per_lun
= MEGASAS_DEFAULT_CMD_PER_LUN
;
5900 host
->max_channel
= MEGASAS_MAX_CHANNELS
- 1;
5901 host
->max_id
= MEGASAS_MAX_DEV_PER_CHANNEL
;
5902 host
->max_lun
= MEGASAS_MAX_LUN
;
5903 host
->max_cmd_len
= 16;
5906 * Notify the mid-layer about the new controller
5908 if (scsi_add_host(host
, &instance
->pdev
->dev
)) {
5909 dev_err(&instance
->pdev
->dev
,
5910 "Failed to add host from %s %d\n",
5911 __func__
, __LINE__
);
5919 megasas_set_dma_mask(struct pci_dev
*pdev
)
5922 * All our controllers are capable of performing 64-bit DMA
5925 if (pci_set_dma_mask(pdev
, DMA_BIT_MASK(64)) != 0) {
5927 if (pci_set_dma_mask(pdev
, DMA_BIT_MASK(32)) != 0)
5928 goto fail_set_dma_mask
;
5931 if (pci_set_dma_mask(pdev
, DMA_BIT_MASK(32)) != 0)
5932 goto fail_set_dma_mask
;
5935 * Ensure that all data structures are allocated in 32-bit
5938 if (pci_set_consistent_dma_mask(pdev
, DMA_BIT_MASK(32)) != 0) {
5939 /* Try 32bit DMA mask and 32 bit Consistent dma mask */
5940 if (!pci_set_dma_mask(pdev
, DMA_BIT_MASK(32))
5941 && !pci_set_consistent_dma_mask(pdev
, DMA_BIT_MASK(32)))
5942 dev_info(&pdev
->dev
, "set 32bit DMA mask"
5943 "and 32 bit consistent mask\n");
5945 goto fail_set_dma_mask
;
5955 * megasas_probe_one - PCI hotplug entry point
5956 * @pdev: PCI device structure
5957 * @id: PCI ids of supported hotplugged adapter
5959 static int megasas_probe_one(struct pci_dev
*pdev
,
5960 const struct pci_device_id
*id
)
5963 struct Scsi_Host
*host
;
5964 struct megasas_instance
*instance
;
5966 struct fusion_context
*fusion
= NULL
;
5968 /* Reset MSI-X in the kdump kernel */
5969 if (reset_devices
) {
5970 pos
= pci_find_capability(pdev
, PCI_CAP_ID_MSIX
);
5972 pci_read_config_word(pdev
, pos
+ PCI_MSIX_FLAGS
,
5974 if (control
& PCI_MSIX_FLAGS_ENABLE
) {
5975 dev_info(&pdev
->dev
, "resetting MSI-X\n");
5976 pci_write_config_word(pdev
,
5977 pos
+ PCI_MSIX_FLAGS
,
5979 ~PCI_MSIX_FLAGS_ENABLE
);
5985 * PCI prepping: enable device set bus mastering and dma mask
5987 rval
= pci_enable_device_mem(pdev
);
5993 pci_set_master(pdev
);
5995 if (megasas_set_dma_mask(pdev
))
5996 goto fail_set_dma_mask
;
5998 host
= scsi_host_alloc(&megasas_template
,
5999 sizeof(struct megasas_instance
));
6002 dev_printk(KERN_DEBUG
, &pdev
->dev
, "scsi_host_alloc failed\n");
6003 goto fail_alloc_instance
;
6006 instance
= (struct megasas_instance
*)host
->hostdata
;
6007 memset(instance
, 0, sizeof(*instance
));
6008 atomic_set(&instance
->fw_reset_no_pci_access
, 0);
6009 instance
->pdev
= pdev
;
6011 switch (instance
->pdev
->device
) {
6012 case PCI_DEVICE_ID_LSI_VENTURA
:
6013 case PCI_DEVICE_ID_LSI_HARPOON
:
6014 case PCI_DEVICE_ID_LSI_TOMCAT
:
6015 case PCI_DEVICE_ID_LSI_VENTURA_4PORT
:
6016 case PCI_DEVICE_ID_LSI_CRUSADER_4PORT
:
6017 instance
->is_ventura
= true;
6018 case PCI_DEVICE_ID_LSI_FUSION
:
6019 case PCI_DEVICE_ID_LSI_PLASMA
:
6020 case PCI_DEVICE_ID_LSI_INVADER
:
6021 case PCI_DEVICE_ID_LSI_FURY
:
6022 case PCI_DEVICE_ID_LSI_INTRUDER
:
6023 case PCI_DEVICE_ID_LSI_INTRUDER_24
:
6024 case PCI_DEVICE_ID_LSI_CUTLASS_52
:
6025 case PCI_DEVICE_ID_LSI_CUTLASS_53
:
6027 if (megasas_alloc_fusion_context(instance
)) {
6028 megasas_free_fusion_context(instance
);
6029 goto fail_alloc_dma_buf
;
6031 fusion
= instance
->ctrl_context
;
6033 if ((instance
->pdev
->device
== PCI_DEVICE_ID_LSI_FUSION
) ||
6034 (instance
->pdev
->device
== PCI_DEVICE_ID_LSI_PLASMA
))
6035 fusion
->adapter_type
= THUNDERBOLT_SERIES
;
6036 else if (instance
->is_ventura
)
6037 fusion
->adapter_type
= VENTURA_SERIES
;
6039 fusion
->adapter_type
= INVADER_SERIES
;
6042 default: /* For all other supported controllers */
6044 instance
->producer
=
6045 pci_alloc_consistent(pdev
, sizeof(u32
),
6046 &instance
->producer_h
);
6047 instance
->consumer
=
6048 pci_alloc_consistent(pdev
, sizeof(u32
),
6049 &instance
->consumer_h
);
6051 if (!instance
->producer
|| !instance
->consumer
) {
6052 dev_printk(KERN_DEBUG
, &pdev
->dev
, "Failed to allocate "
6053 "memory for producer, consumer\n");
6054 goto fail_alloc_dma_buf
;
6057 *instance
->producer
= 0;
6058 *instance
->consumer
= 0;
6062 /* Crash dump feature related initialisation*/
6063 instance
->drv_buf_index
= 0;
6064 instance
->drv_buf_alloc
= 0;
6065 instance
->crash_dump_fw_support
= 0;
6066 instance
->crash_dump_app_support
= 0;
6067 instance
->fw_crash_state
= UNAVAILABLE
;
6068 spin_lock_init(&instance
->crashdump_lock
);
6069 instance
->crash_dump_buf
= NULL
;
6071 megasas_poll_wait_aen
= 0;
6072 instance
->flag_ieee
= 0;
6073 instance
->ev
= NULL
;
6074 instance
->issuepend_done
= 1;
6075 atomic_set(&instance
->adprecovery
, MEGASAS_HBA_OPERATIONAL
);
6076 instance
->is_imr
= 0;
6078 instance
->evt_detail
= pci_alloc_consistent(pdev
,
6080 megasas_evt_detail
),
6081 &instance
->evt_detail_h
);
6083 if (!instance
->evt_detail
) {
6084 dev_printk(KERN_DEBUG
, &pdev
->dev
, "Failed to allocate memory for "
6085 "event detail structure\n");
6086 goto fail_alloc_dma_buf
;
6089 if (!reset_devices
) {
6090 instance
->system_info_buf
= pci_zalloc_consistent(pdev
,
6091 sizeof(struct MR_DRV_SYSTEM_INFO
),
6092 &instance
->system_info_h
);
6093 if (!instance
->system_info_buf
)
6094 dev_info(&instance
->pdev
->dev
, "Can't allocate system info buffer\n");
6096 instance
->pd_info
= pci_alloc_consistent(pdev
,
6097 sizeof(struct MR_PD_INFO
), &instance
->pd_info_h
);
6099 instance
->pd_info
= pci_alloc_consistent(pdev
,
6100 sizeof(struct MR_PD_INFO
), &instance
->pd_info_h
);
6101 instance
->tgt_prop
= pci_alloc_consistent(pdev
,
6102 sizeof(struct MR_TARGET_PROPERTIES
), &instance
->tgt_prop_h
);
6104 if (!instance
->pd_info
)
6105 dev_err(&instance
->pdev
->dev
, "Failed to alloc mem for pd_info\n");
6107 if (!instance
->tgt_prop
)
6108 dev_err(&instance
->pdev
->dev
, "Failed to alloc mem for tgt_prop\n");
6110 instance
->crash_dump_buf
= pci_alloc_consistent(pdev
,
6112 &instance
->crash_dump_h
);
6113 if (!instance
->crash_dump_buf
)
6114 dev_err(&pdev
->dev
, "Can't allocate Firmware "
6115 "crash dump DMA buffer\n");
6119 * Initialize locks and queues
6121 INIT_LIST_HEAD(&instance
->cmd_pool
);
6122 INIT_LIST_HEAD(&instance
->internal_reset_pending_q
);
6124 atomic_set(&instance
->fw_outstanding
,0);
6126 init_waitqueue_head(&instance
->int_cmd_wait_q
);
6127 init_waitqueue_head(&instance
->abort_cmd_wait_q
);
6129 spin_lock_init(&instance
->mfi_pool_lock
);
6130 spin_lock_init(&instance
->hba_lock
);
6131 spin_lock_init(&instance
->stream_lock
);
6132 spin_lock_init(&instance
->completion_lock
);
6134 mutex_init(&instance
->reset_mutex
);
6135 mutex_init(&instance
->hba_mutex
);
6138 * Initialize PCI related and misc parameters
6140 instance
->host
= host
;
6141 instance
->unique_id
= pdev
->bus
->number
<< 8 | pdev
->devfn
;
6142 instance
->init_id
= MEGASAS_DEFAULT_INIT_ID
;
6143 instance
->ctrl_info
= NULL
;
6146 if ((instance
->pdev
->device
== PCI_DEVICE_ID_LSI_SAS0073SKINNY
) ||
6147 (instance
->pdev
->device
== PCI_DEVICE_ID_LSI_SAS0071SKINNY
))
6148 instance
->flag_ieee
= 1;
6150 megasas_dbg_lvl
= 0;
6152 instance
->unload
= 1;
6153 instance
->last_time
= 0;
6154 instance
->disableOnlineCtrlReset
= 1;
6155 instance
->UnevenSpanSupport
= 0;
6157 if (instance
->ctrl_context
) {
6158 INIT_WORK(&instance
->work_init
, megasas_fusion_ocr_wq
);
6159 INIT_WORK(&instance
->crash_init
, megasas_fusion_crash_dump_wq
);
6161 INIT_WORK(&instance
->work_init
, process_fw_state_change_wq
);
6164 * Initialize MFI Firmware
6166 if (megasas_init_fw(instance
))
6169 if (instance
->requestorId
) {
6170 if (instance
->PlasmaFW111
) {
6171 instance
->vf_affiliation_111
=
6172 pci_alloc_consistent(pdev
, sizeof(struct MR_LD_VF_AFFILIATION_111
),
6173 &instance
->vf_affiliation_111_h
);
6174 if (!instance
->vf_affiliation_111
)
6175 dev_warn(&pdev
->dev
, "Can't allocate "
6176 "memory for VF affiliation buffer\n");
6178 instance
->vf_affiliation
=
6179 pci_alloc_consistent(pdev
,
6180 (MAX_LOGICAL_DRIVES
+ 1) *
6181 sizeof(struct MR_LD_VF_AFFILIATION
),
6182 &instance
->vf_affiliation_h
);
6183 if (!instance
->vf_affiliation
)
6184 dev_warn(&pdev
->dev
, "Can't allocate "
6185 "memory for VF affiliation buffer\n");
6190 * Store instance in PCI softstate
6192 pci_set_drvdata(pdev
, instance
);
6195 * Add this controller to megasas_mgmt_info structure so that it
6196 * can be exported to management applications
6198 megasas_mgmt_info
.count
++;
6199 megasas_mgmt_info
.instance
[megasas_mgmt_info
.max_index
] = instance
;
6200 megasas_mgmt_info
.max_index
++;
6203 * Register with SCSI mid-layer
6205 if (megasas_io_attach(instance
))
6206 goto fail_io_attach
;
6208 instance
->unload
= 0;
6210 * Trigger SCSI to scan our drives
6212 scsi_scan_host(host
);
6215 * Initiate AEN (Asynchronous Event Notification)
6217 if (megasas_start_aen(instance
)) {
6218 dev_printk(KERN_DEBUG
, &pdev
->dev
, "start aen failed\n");
6219 goto fail_start_aen
;
6222 /* Get current SR-IOV LD/VF affiliation */
6223 if (instance
->requestorId
)
6224 megasas_get_ld_vf_affiliation(instance
, 1);
6230 megasas_mgmt_info
.count
--;
6231 megasas_mgmt_info
.instance
[megasas_mgmt_info
.max_index
] = NULL
;
6232 megasas_mgmt_info
.max_index
--;
6234 instance
->instancet
->disable_intr(instance
);
6235 megasas_destroy_irqs(instance
);
6237 if (instance
->ctrl_context
)
6238 megasas_release_fusion(instance
);
6240 megasas_release_mfi(instance
);
6241 if (instance
->msix_vectors
)
6242 pci_free_irq_vectors(instance
->pdev
);
6245 if (instance
->evt_detail
)
6246 pci_free_consistent(pdev
, sizeof(struct megasas_evt_detail
),
6247 instance
->evt_detail
,
6248 instance
->evt_detail_h
);
6250 if (instance
->pd_info
)
6251 pci_free_consistent(pdev
, sizeof(struct MR_PD_INFO
),
6253 instance
->pd_info_h
);
6254 if (instance
->tgt_prop
)
6255 pci_free_consistent(pdev
, sizeof(struct MR_TARGET_PROPERTIES
),
6257 instance
->tgt_prop_h
);
6258 if (instance
->producer
)
6259 pci_free_consistent(pdev
, sizeof(u32
), instance
->producer
,
6260 instance
->producer_h
);
6261 if (instance
->consumer
)
6262 pci_free_consistent(pdev
, sizeof(u32
), instance
->consumer
,
6263 instance
->consumer_h
);
6264 scsi_host_put(host
);
6266 fail_alloc_instance
:
6268 pci_disable_device(pdev
);
6274 * megasas_flush_cache - Requests FW to flush all its caches
6275 * @instance: Adapter soft state
6277 static void megasas_flush_cache(struct megasas_instance
*instance
)
6279 struct megasas_cmd
*cmd
;
6280 struct megasas_dcmd_frame
*dcmd
;
6282 if (atomic_read(&instance
->adprecovery
) == MEGASAS_HW_CRITICAL_ERROR
)
6285 cmd
= megasas_get_cmd(instance
);
6290 dcmd
= &cmd
->frame
->dcmd
;
6292 memset(dcmd
->mbox
.b
, 0, MFI_MBOX_SIZE
);
6294 dcmd
->cmd
= MFI_CMD_DCMD
;
6295 dcmd
->cmd_status
= 0x0;
6296 dcmd
->sge_count
= 0;
6297 dcmd
->flags
= cpu_to_le16(MFI_FRAME_DIR_NONE
);
6300 dcmd
->data_xfer_len
= 0;
6301 dcmd
->opcode
= cpu_to_le32(MR_DCMD_CTRL_CACHE_FLUSH
);
6302 dcmd
->mbox
.b
[0] = MR_FLUSH_CTRL_CACHE
| MR_FLUSH_DISK_CACHE
;
6304 if (megasas_issue_blocked_cmd(instance
, cmd
, MFI_IO_TIMEOUT_SECS
)
6306 dev_err(&instance
->pdev
->dev
,
6307 "return from %s %d\n", __func__
, __LINE__
);
6311 megasas_return_cmd(instance
, cmd
);
6315 * megasas_shutdown_controller - Instructs FW to shutdown the controller
6316 * @instance: Adapter soft state
6317 * @opcode: Shutdown/Hibernate
6319 static void megasas_shutdown_controller(struct megasas_instance
*instance
,
6322 struct megasas_cmd
*cmd
;
6323 struct megasas_dcmd_frame
*dcmd
;
6325 if (atomic_read(&instance
->adprecovery
) == MEGASAS_HW_CRITICAL_ERROR
)
6328 cmd
= megasas_get_cmd(instance
);
6333 if (instance
->aen_cmd
)
6334 megasas_issue_blocked_abort_cmd(instance
,
6335 instance
->aen_cmd
, MFI_IO_TIMEOUT_SECS
);
6336 if (instance
->map_update_cmd
)
6337 megasas_issue_blocked_abort_cmd(instance
,
6338 instance
->map_update_cmd
, MFI_IO_TIMEOUT_SECS
);
6339 if (instance
->jbod_seq_cmd
)
6340 megasas_issue_blocked_abort_cmd(instance
,
6341 instance
->jbod_seq_cmd
, MFI_IO_TIMEOUT_SECS
);
6343 dcmd
= &cmd
->frame
->dcmd
;
6345 memset(dcmd
->mbox
.b
, 0, MFI_MBOX_SIZE
);
6347 dcmd
->cmd
= MFI_CMD_DCMD
;
6348 dcmd
->cmd_status
= 0x0;
6349 dcmd
->sge_count
= 0;
6350 dcmd
->flags
= cpu_to_le16(MFI_FRAME_DIR_NONE
);
6353 dcmd
->data_xfer_len
= 0;
6354 dcmd
->opcode
= cpu_to_le32(opcode
);
6356 if (megasas_issue_blocked_cmd(instance
, cmd
, MFI_IO_TIMEOUT_SECS
)
6358 dev_err(&instance
->pdev
->dev
,
6359 "return from %s %d\n", __func__
, __LINE__
);
6363 megasas_return_cmd(instance
, cmd
);
6368 * megasas_suspend - driver suspend entry point
6369 * @pdev: PCI device structure
6370 * @state: PCI power state to suspend routine
6373 megasas_suspend(struct pci_dev
*pdev
, pm_message_t state
)
6375 struct Scsi_Host
*host
;
6376 struct megasas_instance
*instance
;
6378 instance
= pci_get_drvdata(pdev
);
6379 host
= instance
->host
;
6380 instance
->unload
= 1;
6382 /* Shutdown SR-IOV heartbeat timer */
6383 if (instance
->requestorId
&& !instance
->skip_heartbeat_timer_del
)
6384 del_timer_sync(&instance
->sriov_heartbeat_timer
);
6386 megasas_flush_cache(instance
);
6387 megasas_shutdown_controller(instance
, MR_DCMD_HIBERNATE_SHUTDOWN
);
6389 /* cancel the delayed work if this work still in queue */
6390 if (instance
->ev
!= NULL
) {
6391 struct megasas_aen_event
*ev
= instance
->ev
;
6392 cancel_delayed_work_sync(&ev
->hotplug_work
);
6393 instance
->ev
= NULL
;
6396 tasklet_kill(&instance
->isr_tasklet
);
6398 pci_set_drvdata(instance
->pdev
, instance
);
6399 instance
->instancet
->disable_intr(instance
);
6401 megasas_destroy_irqs(instance
);
6403 if (instance
->msix_vectors
)
6404 pci_free_irq_vectors(instance
->pdev
);
6406 pci_save_state(pdev
);
6407 pci_disable_device(pdev
);
6409 pci_set_power_state(pdev
, pci_choose_state(pdev
, state
));
6415 * megasas_resume- driver resume entry point
6416 * @pdev: PCI device structure
6419 megasas_resume(struct pci_dev
*pdev
)
6422 struct Scsi_Host
*host
;
6423 struct megasas_instance
*instance
;
6424 int irq_flags
= PCI_IRQ_LEGACY
;
6426 instance
= pci_get_drvdata(pdev
);
6427 host
= instance
->host
;
6428 pci_set_power_state(pdev
, PCI_D0
);
6429 pci_enable_wake(pdev
, PCI_D0
, 0);
6430 pci_restore_state(pdev
);
6433 * PCI prepping: enable device set bus mastering and dma mask
6435 rval
= pci_enable_device_mem(pdev
);
6438 dev_err(&pdev
->dev
, "Enable device failed\n");
6442 pci_set_master(pdev
);
6444 if (megasas_set_dma_mask(pdev
))
6445 goto fail_set_dma_mask
;
6448 * Initialize MFI Firmware
6451 atomic_set(&instance
->fw_outstanding
, 0);
6454 * We expect the FW state to be READY
6456 if (megasas_transition_to_ready(instance
, 0))
6457 goto fail_ready_state
;
6459 /* Now re-enable MSI-X */
6460 if (instance
->msix_vectors
) {
6461 irq_flags
= PCI_IRQ_MSIX
;
6462 if (smp_affinity_enable
)
6463 irq_flags
|= PCI_IRQ_AFFINITY
;
6465 rval
= pci_alloc_irq_vectors(instance
->pdev
, 1,
6466 instance
->msix_vectors
?
6467 instance
->msix_vectors
: 1, irq_flags
);
6469 goto fail_reenable_msix
;
6471 if (instance
->ctrl_context
) {
6472 megasas_reset_reply_desc(instance
);
6473 if (megasas_ioc_init_fusion(instance
)) {
6474 megasas_free_cmds(instance
);
6475 megasas_free_cmds_fusion(instance
);
6478 if (!megasas_get_map_info(instance
))
6479 megasas_sync_map_info(instance
);
6481 *instance
->producer
= 0;
6482 *instance
->consumer
= 0;
6483 if (megasas_issue_init_mfi(instance
))
6487 tasklet_init(&instance
->isr_tasklet
, instance
->instancet
->tasklet
,
6488 (unsigned long)instance
);
6490 if (instance
->msix_vectors
?
6491 megasas_setup_irqs_msix(instance
, 0) :
6492 megasas_setup_irqs_ioapic(instance
))
6495 /* Re-launch SR-IOV heartbeat timer */
6496 if (instance
->requestorId
) {
6497 if (!megasas_sriov_start_heartbeat(instance
, 0))
6498 megasas_start_timer(instance
,
6499 &instance
->sriov_heartbeat_timer
,
6500 megasas_sriov_heartbeat_handler
,
6501 MEGASAS_SRIOV_HEARTBEAT_INTERVAL_VF
);
6503 instance
->skip_heartbeat_timer_del
= 1;
6508 instance
->instancet
->enable_intr(instance
);
6509 megasas_setup_jbod_map(instance
);
6510 instance
->unload
= 0;
6513 * Initiate AEN (Asynchronous Event Notification)
6515 if (megasas_start_aen(instance
))
6516 dev_err(&instance
->pdev
->dev
, "Start AEN failed\n");
6521 if (instance
->evt_detail
)
6522 pci_free_consistent(pdev
, sizeof(struct megasas_evt_detail
),
6523 instance
->evt_detail
,
6524 instance
->evt_detail_h
);
6526 if (instance
->pd_info
)
6527 pci_free_consistent(pdev
, sizeof(struct MR_PD_INFO
),
6529 instance
->pd_info_h
);
6530 if (instance
->tgt_prop
)
6531 pci_free_consistent(pdev
, sizeof(struct MR_TARGET_PROPERTIES
),
6533 instance
->tgt_prop_h
);
6534 if (instance
->producer
)
6535 pci_free_consistent(pdev
, sizeof(u32
), instance
->producer
,
6536 instance
->producer_h
);
6537 if (instance
->consumer
)
6538 pci_free_consistent(pdev
, sizeof(u32
), instance
->consumer
,
6539 instance
->consumer_h
);
6540 scsi_host_put(host
);
6546 pci_disable_device(pdev
);
6551 #define megasas_suspend NULL
6552 #define megasas_resume NULL
6556 megasas_wait_for_adapter_operational(struct megasas_instance
*instance
)
6558 int wait_time
= MEGASAS_RESET_WAIT_TIME
* 2;
6561 if (atomic_read(&instance
->adprecovery
) == MEGASAS_HW_CRITICAL_ERROR
)
6564 for (i
= 0; i
< wait_time
; i
++) {
6565 if (atomic_read(&instance
->adprecovery
) == MEGASAS_HBA_OPERATIONAL
)
6568 if (!(i
% MEGASAS_RESET_NOTICE_INTERVAL
))
6569 dev_notice(&instance
->pdev
->dev
, "waiting for controller reset to finish\n");
6574 if (atomic_read(&instance
->adprecovery
) != MEGASAS_HBA_OPERATIONAL
) {
6575 dev_info(&instance
->pdev
->dev
, "%s timed out while waiting for HBA to recover.\n",
6584 * megasas_detach_one - PCI hot"un"plug entry point
6585 * @pdev: PCI device structure
6587 static void megasas_detach_one(struct pci_dev
*pdev
)
6590 struct Scsi_Host
*host
;
6591 struct megasas_instance
*instance
;
6592 struct fusion_context
*fusion
;
6595 instance
= pci_get_drvdata(pdev
);
6596 instance
->unload
= 1;
6597 host
= instance
->host
;
6598 fusion
= instance
->ctrl_context
;
6600 /* Shutdown SR-IOV heartbeat timer */
6601 if (instance
->requestorId
&& !instance
->skip_heartbeat_timer_del
)
6602 del_timer_sync(&instance
->sriov_heartbeat_timer
);
6604 if (instance
->fw_crash_state
!= UNAVAILABLE
)
6605 megasas_free_host_crash_buffer(instance
);
6606 scsi_remove_host(instance
->host
);
6608 if (megasas_wait_for_adapter_operational(instance
))
6609 goto skip_firing_dcmds
;
6611 megasas_flush_cache(instance
);
6612 megasas_shutdown_controller(instance
, MR_DCMD_CTRL_SHUTDOWN
);
6615 /* cancel the delayed work if this work still in queue*/
6616 if (instance
->ev
!= NULL
) {
6617 struct megasas_aen_event
*ev
= instance
->ev
;
6618 cancel_delayed_work_sync(&ev
->hotplug_work
);
6619 instance
->ev
= NULL
;
6622 /* cancel all wait events */
6623 wake_up_all(&instance
->int_cmd_wait_q
);
6625 tasklet_kill(&instance
->isr_tasklet
);
6628 * Take the instance off the instance array. Note that we will not
6629 * decrement the max_index. We let this array be sparse array
6631 for (i
= 0; i
< megasas_mgmt_info
.max_index
; i
++) {
6632 if (megasas_mgmt_info
.instance
[i
] == instance
) {
6633 megasas_mgmt_info
.count
--;
6634 megasas_mgmt_info
.instance
[i
] = NULL
;
6640 instance
->instancet
->disable_intr(instance
);
6642 megasas_destroy_irqs(instance
);
6644 if (instance
->msix_vectors
)
6645 pci_free_irq_vectors(instance
->pdev
);
6647 if (instance
->is_ventura
) {
6648 for (i
= 0; i
< MAX_LOGICAL_DRIVES_EXT
; ++i
)
6649 kfree(fusion
->stream_detect_by_ld
[i
]);
6650 kfree(fusion
->stream_detect_by_ld
);
6651 fusion
->stream_detect_by_ld
= NULL
;
6655 if (instance
->ctrl_context
) {
6656 megasas_release_fusion(instance
);
6657 pd_seq_map_sz
= sizeof(struct MR_PD_CFG_SEQ_NUM_SYNC
) +
6658 (sizeof(struct MR_PD_CFG_SEQ
) *
6659 (MAX_PHYSICAL_DEVICES
- 1));
6660 for (i
= 0; i
< 2 ; i
++) {
6661 if (fusion
->ld_map
[i
])
6662 dma_free_coherent(&instance
->pdev
->dev
,
6665 fusion
->ld_map_phys
[i
]);
6666 if (fusion
->ld_drv_map
[i
])
6667 free_pages((ulong
)fusion
->ld_drv_map
[i
],
6668 fusion
->drv_map_pages
);
6669 if (fusion
->pd_seq_sync
[i
])
6670 dma_free_coherent(&instance
->pdev
->dev
,
6672 fusion
->pd_seq_sync
[i
],
6673 fusion
->pd_seq_phys
[i
]);
6675 megasas_free_fusion_context(instance
);
6677 megasas_release_mfi(instance
);
6678 pci_free_consistent(pdev
, sizeof(u32
),
6680 instance
->producer_h
);
6681 pci_free_consistent(pdev
, sizeof(u32
),
6683 instance
->consumer_h
);
6686 kfree(instance
->ctrl_info
);
6688 if (instance
->evt_detail
)
6689 pci_free_consistent(pdev
, sizeof(struct megasas_evt_detail
),
6690 instance
->evt_detail
, instance
->evt_detail_h
);
6691 if (instance
->pd_info
)
6692 pci_free_consistent(pdev
, sizeof(struct MR_PD_INFO
),
6694 instance
->pd_info_h
);
6695 if (instance
->tgt_prop
)
6696 pci_free_consistent(pdev
, sizeof(struct MR_TARGET_PROPERTIES
),
6698 instance
->tgt_prop_h
);
6699 if (instance
->vf_affiliation
)
6700 pci_free_consistent(pdev
, (MAX_LOGICAL_DRIVES
+ 1) *
6701 sizeof(struct MR_LD_VF_AFFILIATION
),
6702 instance
->vf_affiliation
,
6703 instance
->vf_affiliation_h
);
6705 if (instance
->vf_affiliation_111
)
6706 pci_free_consistent(pdev
,
6707 sizeof(struct MR_LD_VF_AFFILIATION_111
),
6708 instance
->vf_affiliation_111
,
6709 instance
->vf_affiliation_111_h
);
6711 if (instance
->hb_host_mem
)
6712 pci_free_consistent(pdev
, sizeof(struct MR_CTRL_HB_HOST_MEM
),
6713 instance
->hb_host_mem
,
6714 instance
->hb_host_mem_h
);
6716 if (instance
->crash_dump_buf
)
6717 pci_free_consistent(pdev
, CRASH_DMA_BUF_SIZE
,
6718 instance
->crash_dump_buf
, instance
->crash_dump_h
);
6720 if (instance
->system_info_buf
)
6721 pci_free_consistent(pdev
, sizeof(struct MR_DRV_SYSTEM_INFO
),
6722 instance
->system_info_buf
, instance
->system_info_h
);
6724 scsi_host_put(host
);
6726 pci_disable_device(pdev
);
6730 * megasas_shutdown - Shutdown entry point
6731 * @device: Generic device structure
6733 static void megasas_shutdown(struct pci_dev
*pdev
)
6735 struct megasas_instance
*instance
= pci_get_drvdata(pdev
);
6737 instance
->unload
= 1;
6739 if (megasas_wait_for_adapter_operational(instance
))
6740 goto skip_firing_dcmds
;
6742 megasas_flush_cache(instance
);
6743 megasas_shutdown_controller(instance
, MR_DCMD_CTRL_SHUTDOWN
);
6746 instance
->instancet
->disable_intr(instance
);
6747 megasas_destroy_irqs(instance
);
6749 if (instance
->msix_vectors
)
6750 pci_free_irq_vectors(instance
->pdev
);
6754 * megasas_mgmt_open - char node "open" entry point
6756 static int megasas_mgmt_open(struct inode
*inode
, struct file
*filep
)
6759 * Allow only those users with admin rights
6761 if (!capable(CAP_SYS_ADMIN
))
6768 * megasas_mgmt_fasync - Async notifier registration from applications
6770 * This function adds the calling process to a driver global queue. When an
6771 * event occurs, SIGIO will be sent to all processes in this queue.
6773 static int megasas_mgmt_fasync(int fd
, struct file
*filep
, int mode
)
6777 mutex_lock(&megasas_async_queue_mutex
);
6779 rc
= fasync_helper(fd
, filep
, mode
, &megasas_async_queue
);
6781 mutex_unlock(&megasas_async_queue_mutex
);
6784 /* For sanity check when we get ioctl */
6785 filep
->private_data
= filep
;
6789 printk(KERN_DEBUG
"megasas: fasync_helper failed [%d]\n", rc
);
6795 * megasas_mgmt_poll - char node "poll" entry point
6797 static unsigned int megasas_mgmt_poll(struct file
*file
, poll_table
*wait
)
6800 unsigned long flags
;
6802 poll_wait(file
, &megasas_poll_wait
, wait
);
6803 spin_lock_irqsave(&poll_aen_lock
, flags
);
6804 if (megasas_poll_wait_aen
)
6805 mask
= (POLLIN
| POLLRDNORM
);
6808 megasas_poll_wait_aen
= 0;
6809 spin_unlock_irqrestore(&poll_aen_lock
, flags
);
6814 * megasas_set_crash_dump_params_ioctl:
6815 * Send CRASH_DUMP_MODE DCMD to all controllers
6816 * @cmd: MFI command frame
6819 static int megasas_set_crash_dump_params_ioctl(struct megasas_cmd
*cmd
)
6821 struct megasas_instance
*local_instance
;
6825 crash_support
= cmd
->frame
->dcmd
.mbox
.w
[0];
6827 for (i
= 0; i
< megasas_mgmt_info
.max_index
; i
++) {
6828 local_instance
= megasas_mgmt_info
.instance
[i
];
6829 if (local_instance
&& local_instance
->crash_dump_drv_support
) {
6830 if ((atomic_read(&local_instance
->adprecovery
) ==
6831 MEGASAS_HBA_OPERATIONAL
) &&
6832 !megasas_set_crash_dump_params(local_instance
,
6834 local_instance
->crash_dump_app_support
=
6836 dev_info(&local_instance
->pdev
->dev
,
6837 "Application firmware crash "
6838 "dump mode set success\n");
6841 dev_info(&local_instance
->pdev
->dev
,
6842 "Application firmware crash "
6843 "dump mode set failed\n");
6852 * megasas_mgmt_fw_ioctl - Issues management ioctls to FW
6853 * @instance: Adapter soft state
6854 * @argp: User's ioctl packet
6857 megasas_mgmt_fw_ioctl(struct megasas_instance
*instance
,
6858 struct megasas_iocpacket __user
* user_ioc
,
6859 struct megasas_iocpacket
*ioc
)
6861 struct megasas_sge32
*kern_sge32
;
6862 struct megasas_cmd
*cmd
;
6863 void *kbuff_arr
[MAX_IOCTL_SGE
];
6864 dma_addr_t buf_handle
= 0;
6867 dma_addr_t sense_handle
;
6868 unsigned long *sense_ptr
;
6870 memset(kbuff_arr
, 0, sizeof(kbuff_arr
));
6872 if (ioc
->sge_count
> MAX_IOCTL_SGE
) {
6873 dev_printk(KERN_DEBUG
, &instance
->pdev
->dev
, "SGE count [%d] > max limit [%d]\n",
6874 ioc
->sge_count
, MAX_IOCTL_SGE
);
6878 cmd
= megasas_get_cmd(instance
);
6880 dev_printk(KERN_DEBUG
, &instance
->pdev
->dev
, "Failed to get a cmd packet\n");
6885 * User's IOCTL packet has 2 frames (maximum). Copy those two
6886 * frames into our cmd's frames. cmd->frame's context will get
6887 * overwritten when we copy from user's frames. So set that value
6890 memcpy(cmd
->frame
, ioc
->frame
.raw
, 2 * MEGAMFI_FRAME_SIZE
);
6891 cmd
->frame
->hdr
.context
= cpu_to_le32(cmd
->index
);
6892 cmd
->frame
->hdr
.pad_0
= 0;
6893 cmd
->frame
->hdr
.flags
&= cpu_to_le16(~(MFI_FRAME_IEEE
|
6895 MFI_FRAME_SENSE64
));
6897 if (cmd
->frame
->dcmd
.opcode
== MR_DCMD_CTRL_SHUTDOWN
) {
6898 if (megasas_get_ctrl_info(instance
) != DCMD_SUCCESS
) {
6899 megasas_return_cmd(instance
, cmd
);
6904 if (cmd
->frame
->dcmd
.opcode
== MR_DRIVER_SET_APP_CRASHDUMP_MODE
) {
6905 error
= megasas_set_crash_dump_params_ioctl(cmd
);
6906 megasas_return_cmd(instance
, cmd
);
6911 * The management interface between applications and the fw uses
6912 * MFI frames. E.g, RAID configuration changes, LD property changes
6913 * etc are accomplishes through different kinds of MFI frames. The
6914 * driver needs to care only about substituting user buffers with
6915 * kernel buffers in SGLs. The location of SGL is embedded in the
6916 * struct iocpacket itself.
6918 kern_sge32
= (struct megasas_sge32
*)
6919 ((unsigned long)cmd
->frame
+ ioc
->sgl_off
);
6922 * For each user buffer, create a mirror buffer and copy in
6924 for (i
= 0; i
< ioc
->sge_count
; i
++) {
6925 if (!ioc
->sgl
[i
].iov_len
)
6928 kbuff_arr
[i
] = dma_alloc_coherent(&instance
->pdev
->dev
,
6929 ioc
->sgl
[i
].iov_len
,
6930 &buf_handle
, GFP_KERNEL
);
6931 if (!kbuff_arr
[i
]) {
6932 dev_printk(KERN_DEBUG
, &instance
->pdev
->dev
, "Failed to alloc "
6933 "kernel SGL buffer for IOCTL\n");
6939 * We don't change the dma_coherent_mask, so
6940 * pci_alloc_consistent only returns 32bit addresses
6942 kern_sge32
[i
].phys_addr
= cpu_to_le32(buf_handle
);
6943 kern_sge32
[i
].length
= cpu_to_le32(ioc
->sgl
[i
].iov_len
);
6946 * We created a kernel buffer corresponding to the
6947 * user buffer. Now copy in from the user buffer
6949 if (copy_from_user(kbuff_arr
[i
], ioc
->sgl
[i
].iov_base
,
6950 (u32
) (ioc
->sgl
[i
].iov_len
))) {
6956 if (ioc
->sense_len
) {
6957 sense
= dma_alloc_coherent(&instance
->pdev
->dev
, ioc
->sense_len
,
6958 &sense_handle
, GFP_KERNEL
);
6965 (unsigned long *) ((unsigned long)cmd
->frame
+ ioc
->sense_off
);
6966 *sense_ptr
= cpu_to_le32(sense_handle
);
6970 * Set the sync_cmd flag so that the ISR knows not to complete this
6971 * cmd to the SCSI mid-layer
6974 if (megasas_issue_blocked_cmd(instance
, cmd
, 0) == DCMD_NOT_FIRED
) {
6976 dev_err(&instance
->pdev
->dev
,
6977 "return -EBUSY from %s %d opcode 0x%x cmd->cmd_status_drv 0x%x\n",
6978 __func__
, __LINE__
, cmd
->frame
->dcmd
.opcode
,
6979 cmd
->cmd_status_drv
);
6985 if (instance
->unload
== 1) {
6986 dev_info(&instance
->pdev
->dev
, "Driver unload is in progress "
6987 "don't submit data to application\n");
6991 * copy out the kernel buffers to user buffers
6993 for (i
= 0; i
< ioc
->sge_count
; i
++) {
6994 if (copy_to_user(ioc
->sgl
[i
].iov_base
, kbuff_arr
[i
],
6995 ioc
->sgl
[i
].iov_len
)) {
7002 * copy out the sense
7004 if (ioc
->sense_len
) {
7006 * sense_ptr points to the location that has the user
7007 * sense buffer address
7009 sense_ptr
= (unsigned long *) ((unsigned long)ioc
->frame
.raw
+
7012 if (copy_to_user((void __user
*)((unsigned long)
7013 get_unaligned((unsigned long *)sense_ptr
)),
7014 sense
, ioc
->sense_len
)) {
7015 dev_err(&instance
->pdev
->dev
, "Failed to copy out to user "
7023 * copy the status codes returned by the fw
7025 if (copy_to_user(&user_ioc
->frame
.hdr
.cmd_status
,
7026 &cmd
->frame
->hdr
.cmd_status
, sizeof(u8
))) {
7027 dev_printk(KERN_DEBUG
, &instance
->pdev
->dev
, "Error copying out cmd_status\n");
7033 dma_free_coherent(&instance
->pdev
->dev
, ioc
->sense_len
,
7034 sense
, sense_handle
);
7037 for (i
= 0; i
< ioc
->sge_count
; i
++) {
7039 dma_free_coherent(&instance
->pdev
->dev
,
7040 le32_to_cpu(kern_sge32
[i
].length
),
7042 le32_to_cpu(kern_sge32
[i
].phys_addr
));
7043 kbuff_arr
[i
] = NULL
;
7047 megasas_return_cmd(instance
, cmd
);
7051 static int megasas_mgmt_ioctl_fw(struct file
*file
, unsigned long arg
)
7053 struct megasas_iocpacket __user
*user_ioc
=
7054 (struct megasas_iocpacket __user
*)arg
;
7055 struct megasas_iocpacket
*ioc
;
7056 struct megasas_instance
*instance
;
7059 unsigned long flags
;
7060 u32 wait_time
= MEGASAS_RESET_WAIT_TIME
;
7062 ioc
= memdup_user(user_ioc
, sizeof(*ioc
));
7064 return PTR_ERR(ioc
);
7066 instance
= megasas_lookup_instance(ioc
->host_no
);
7072 /* Adjust ioctl wait time for VF mode */
7073 if (instance
->requestorId
)
7074 wait_time
= MEGASAS_ROUTINE_WAIT_TIME_VF
;
7076 /* Block ioctls in VF mode */
7077 if (instance
->requestorId
&& !allow_vf_ioctls
) {
7082 if (atomic_read(&instance
->adprecovery
) == MEGASAS_HW_CRITICAL_ERROR
) {
7083 dev_err(&instance
->pdev
->dev
, "Controller in crit error\n");
7088 if (instance
->unload
== 1) {
7093 if (down_interruptible(&instance
->ioctl_sem
)) {
7094 error
= -ERESTARTSYS
;
7098 for (i
= 0; i
< wait_time
; i
++) {
7100 spin_lock_irqsave(&instance
->hba_lock
, flags
);
7101 if (atomic_read(&instance
->adprecovery
) == MEGASAS_HBA_OPERATIONAL
) {
7102 spin_unlock_irqrestore(&instance
->hba_lock
, flags
);
7105 spin_unlock_irqrestore(&instance
->hba_lock
, flags
);
7107 if (!(i
% MEGASAS_RESET_NOTICE_INTERVAL
)) {
7108 dev_notice(&instance
->pdev
->dev
, "waiting"
7109 "for controller reset to finish\n");
7115 spin_lock_irqsave(&instance
->hba_lock
, flags
);
7116 if (atomic_read(&instance
->adprecovery
) != MEGASAS_HBA_OPERATIONAL
) {
7117 spin_unlock_irqrestore(&instance
->hba_lock
, flags
);
7119 dev_err(&instance
->pdev
->dev
, "timed out while waiting for HBA to recover\n");
7123 spin_unlock_irqrestore(&instance
->hba_lock
, flags
);
7125 error
= megasas_mgmt_fw_ioctl(instance
, user_ioc
, ioc
);
7127 up(&instance
->ioctl_sem
);
7134 static int megasas_mgmt_ioctl_aen(struct file
*file
, unsigned long arg
)
7136 struct megasas_instance
*instance
;
7137 struct megasas_aen aen
;
7140 unsigned long flags
;
7141 u32 wait_time
= MEGASAS_RESET_WAIT_TIME
;
7143 if (file
->private_data
!= file
) {
7144 printk(KERN_DEBUG
"megasas: fasync_helper was not "
7149 if (copy_from_user(&aen
, (void __user
*)arg
, sizeof(aen
)))
7152 instance
= megasas_lookup_instance(aen
.host_no
);
7157 if (atomic_read(&instance
->adprecovery
) == MEGASAS_HW_CRITICAL_ERROR
) {
7161 if (instance
->unload
== 1) {
7165 for (i
= 0; i
< wait_time
; i
++) {
7167 spin_lock_irqsave(&instance
->hba_lock
, flags
);
7168 if (atomic_read(&instance
->adprecovery
) == MEGASAS_HBA_OPERATIONAL
) {
7169 spin_unlock_irqrestore(&instance
->hba_lock
,
7174 spin_unlock_irqrestore(&instance
->hba_lock
, flags
);
7176 if (!(i
% MEGASAS_RESET_NOTICE_INTERVAL
)) {
7177 dev_notice(&instance
->pdev
->dev
, "waiting for"
7178 "controller reset to finish\n");
7184 spin_lock_irqsave(&instance
->hba_lock
, flags
);
7185 if (atomic_read(&instance
->adprecovery
) != MEGASAS_HBA_OPERATIONAL
) {
7186 spin_unlock_irqrestore(&instance
->hba_lock
, flags
);
7187 dev_err(&instance
->pdev
->dev
, "timed out while waiting for HBA to recover\n");
7190 spin_unlock_irqrestore(&instance
->hba_lock
, flags
);
7192 mutex_lock(&instance
->reset_mutex
);
7193 error
= megasas_register_aen(instance
, aen
.seq_num
,
7194 aen
.class_locale_word
);
7195 mutex_unlock(&instance
->reset_mutex
);
7200 * megasas_mgmt_ioctl - char node ioctl entry point
7203 megasas_mgmt_ioctl(struct file
*file
, unsigned int cmd
, unsigned long arg
)
7206 case MEGASAS_IOC_FIRMWARE
:
7207 return megasas_mgmt_ioctl_fw(file
, arg
);
7209 case MEGASAS_IOC_GET_AEN
:
7210 return megasas_mgmt_ioctl_aen(file
, arg
);
7216 #ifdef CONFIG_COMPAT
7217 static int megasas_mgmt_compat_ioctl_fw(struct file
*file
, unsigned long arg
)
7219 struct compat_megasas_iocpacket __user
*cioc
=
7220 (struct compat_megasas_iocpacket __user
*)arg
;
7221 struct megasas_iocpacket __user
*ioc
=
7222 compat_alloc_user_space(sizeof(struct megasas_iocpacket
));
7226 u32 local_sense_off
;
7227 u32 local_sense_len
;
7230 if (clear_user(ioc
, sizeof(*ioc
)))
7233 if (copy_in_user(&ioc
->host_no
, &cioc
->host_no
, sizeof(u16
)) ||
7234 copy_in_user(&ioc
->sgl_off
, &cioc
->sgl_off
, sizeof(u32
)) ||
7235 copy_in_user(&ioc
->sense_off
, &cioc
->sense_off
, sizeof(u32
)) ||
7236 copy_in_user(&ioc
->sense_len
, &cioc
->sense_len
, sizeof(u32
)) ||
7237 copy_in_user(ioc
->frame
.raw
, cioc
->frame
.raw
, 128) ||
7238 copy_in_user(&ioc
->sge_count
, &cioc
->sge_count
, sizeof(u32
)))
7242 * The sense_ptr is used in megasas_mgmt_fw_ioctl only when
7243 * sense_len is not null, so prepare the 64bit value under
7244 * the same condition.
7246 if (get_user(local_sense_off
, &ioc
->sense_off
) ||
7247 get_user(local_sense_len
, &ioc
->sense_len
) ||
7248 get_user(user_sense_off
, &cioc
->sense_off
))
7251 if (local_sense_len
) {
7252 void __user
**sense_ioc_ptr
=
7253 (void __user
**)((u8
*)((unsigned long)&ioc
->frame
.raw
) + local_sense_off
);
7254 compat_uptr_t
*sense_cioc_ptr
=
7255 (compat_uptr_t
*)(((unsigned long)&cioc
->frame
.raw
) + user_sense_off
);
7256 if (get_user(ptr
, sense_cioc_ptr
) ||
7257 put_user(compat_ptr(ptr
), sense_ioc_ptr
))
7261 for (i
= 0; i
< MAX_IOCTL_SGE
; i
++) {
7262 if (get_user(ptr
, &cioc
->sgl
[i
].iov_base
) ||
7263 put_user(compat_ptr(ptr
), &ioc
->sgl
[i
].iov_base
) ||
7264 copy_in_user(&ioc
->sgl
[i
].iov_len
,
7265 &cioc
->sgl
[i
].iov_len
, sizeof(compat_size_t
)))
7269 error
= megasas_mgmt_ioctl_fw(file
, (unsigned long)ioc
);
7271 if (copy_in_user(&cioc
->frame
.hdr
.cmd_status
,
7272 &ioc
->frame
.hdr
.cmd_status
, sizeof(u8
))) {
7273 printk(KERN_DEBUG
"megasas: error copy_in_user cmd_status\n");
7280 megasas_mgmt_compat_ioctl(struct file
*file
, unsigned int cmd
,
7284 case MEGASAS_IOC_FIRMWARE32
:
7285 return megasas_mgmt_compat_ioctl_fw(file
, arg
);
7286 case MEGASAS_IOC_GET_AEN
:
7287 return megasas_mgmt_ioctl_aen(file
, arg
);
7295 * File operations structure for management interface
7297 static const struct file_operations megasas_mgmt_fops
= {
7298 .owner
= THIS_MODULE
,
7299 .open
= megasas_mgmt_open
,
7300 .fasync
= megasas_mgmt_fasync
,
7301 .unlocked_ioctl
= megasas_mgmt_ioctl
,
7302 .poll
= megasas_mgmt_poll
,
7303 #ifdef CONFIG_COMPAT
7304 .compat_ioctl
= megasas_mgmt_compat_ioctl
,
7306 .llseek
= noop_llseek
,
7310 * PCI hotplug support registration structure
7312 static struct pci_driver megasas_pci_driver
= {
7314 .name
= "megaraid_sas",
7315 .id_table
= megasas_pci_table
,
7316 .probe
= megasas_probe_one
,
7317 .remove
= megasas_detach_one
,
7318 .suspend
= megasas_suspend
,
7319 .resume
= megasas_resume
,
7320 .shutdown
= megasas_shutdown
,
7324 * Sysfs driver attributes
7326 static ssize_t
megasas_sysfs_show_version(struct device_driver
*dd
, char *buf
)
7328 return snprintf(buf
, strlen(MEGASAS_VERSION
) + 2, "%s\n",
7332 static DRIVER_ATTR(version
, S_IRUGO
, megasas_sysfs_show_version
, NULL
);
7335 megasas_sysfs_show_release_date(struct device_driver
*dd
, char *buf
)
7337 return snprintf(buf
, strlen(MEGASAS_RELDATE
) + 2, "%s\n",
7341 static DRIVER_ATTR(release_date
, S_IRUGO
, megasas_sysfs_show_release_date
, NULL
);
7344 megasas_sysfs_show_support_poll_for_event(struct device_driver
*dd
, char *buf
)
7346 return sprintf(buf
, "%u\n", support_poll_for_event
);
7349 static DRIVER_ATTR(support_poll_for_event
, S_IRUGO
,
7350 megasas_sysfs_show_support_poll_for_event
, NULL
);
7353 megasas_sysfs_show_support_device_change(struct device_driver
*dd
, char *buf
)
7355 return sprintf(buf
, "%u\n", support_device_change
);
7358 static DRIVER_ATTR(support_device_change
, S_IRUGO
,
7359 megasas_sysfs_show_support_device_change
, NULL
);
7362 megasas_sysfs_show_dbg_lvl(struct device_driver
*dd
, char *buf
)
7364 return sprintf(buf
, "%u\n", megasas_dbg_lvl
);
7368 megasas_sysfs_set_dbg_lvl(struct device_driver
*dd
, const char *buf
, size_t count
)
7372 if (sscanf(buf
, "%u", &megasas_dbg_lvl
) < 1) {
7373 printk(KERN_ERR
"megasas: could not set dbg_lvl\n");
7379 static DRIVER_ATTR(dbg_lvl
, S_IRUGO
|S_IWUSR
, megasas_sysfs_show_dbg_lvl
,
7380 megasas_sysfs_set_dbg_lvl
);
7382 static inline void megasas_remove_scsi_device(struct scsi_device
*sdev
)
7384 sdev_printk(KERN_INFO
, sdev
, "SCSI device is removed\n");
7385 scsi_remove_device(sdev
);
7386 scsi_device_put(sdev
);
7390 megasas_aen_polling(struct work_struct
*work
)
7392 struct megasas_aen_event
*ev
=
7393 container_of(work
, struct megasas_aen_event
, hotplug_work
.work
);
7394 struct megasas_instance
*instance
= ev
->instance
;
7395 union megasas_evt_class_locale class_locale
;
7396 struct Scsi_Host
*host
;
7397 struct scsi_device
*sdev1
;
7400 int i
, j
, doscan
= 0;
7401 u32 seq_num
, wait_time
= MEGASAS_RESET_WAIT_TIME
;
7403 u8 dcmd_ret
= DCMD_SUCCESS
;
7406 printk(KERN_ERR
"invalid instance!\n");
7411 /* Adjust event workqueue thread wait time for VF mode */
7412 if (instance
->requestorId
)
7413 wait_time
= MEGASAS_ROUTINE_WAIT_TIME_VF
;
7415 /* Don't run the event workqueue thread if OCR is running */
7416 mutex_lock(&instance
->reset_mutex
);
7418 instance
->ev
= NULL
;
7419 host
= instance
->host
;
7420 if (instance
->evt_detail
) {
7421 megasas_decode_evt(instance
);
7423 switch (le32_to_cpu(instance
->evt_detail
->code
)) {
7425 case MR_EVT_PD_INSERTED
:
7426 case MR_EVT_PD_REMOVED
:
7427 dcmd_ret
= megasas_get_pd_list(instance
);
7428 if (dcmd_ret
== DCMD_SUCCESS
)
7429 doscan
= SCAN_PD_CHANNEL
;
7432 case MR_EVT_LD_OFFLINE
:
7433 case MR_EVT_CFG_CLEARED
:
7434 case MR_EVT_LD_DELETED
:
7435 case MR_EVT_LD_CREATED
:
7436 if (!instance
->requestorId
||
7437 (instance
->requestorId
&& megasas_get_ld_vf_affiliation(instance
, 0)))
7438 dcmd_ret
= megasas_ld_list_query(instance
, MR_LD_QUERY_TYPE_EXPOSED_TO_HOST
);
7440 if (dcmd_ret
== DCMD_SUCCESS
)
7441 doscan
= SCAN_VD_CHANNEL
;
7445 case MR_EVT_CTRL_HOST_BUS_SCAN_REQUESTED
:
7446 case MR_EVT_FOREIGN_CFG_IMPORTED
:
7447 case MR_EVT_LD_STATE_CHANGE
:
7448 dcmd_ret
= megasas_get_pd_list(instance
);
7450 if (dcmd_ret
!= DCMD_SUCCESS
)
7453 if (!instance
->requestorId
||
7454 (instance
->requestorId
&& megasas_get_ld_vf_affiliation(instance
, 0)))
7455 dcmd_ret
= megasas_ld_list_query(instance
, MR_LD_QUERY_TYPE_EXPOSED_TO_HOST
);
7457 if (dcmd_ret
!= DCMD_SUCCESS
)
7460 doscan
= SCAN_VD_CHANNEL
| SCAN_PD_CHANNEL
;
7461 dev_info(&instance
->pdev
->dev
, "scanning for scsi%d...\n",
7462 instance
->host
->host_no
);
7465 case MR_EVT_CTRL_PROP_CHANGED
:
7466 dcmd_ret
= megasas_get_ctrl_info(instance
);
7473 dev_err(&instance
->pdev
->dev
, "invalid evt_detail!\n");
7474 mutex_unlock(&instance
->reset_mutex
);
7479 mutex_unlock(&instance
->reset_mutex
);
7481 if (doscan
& SCAN_PD_CHANNEL
) {
7482 for (i
= 0; i
< MEGASAS_MAX_PD_CHANNELS
; i
++) {
7483 for (j
= 0; j
< MEGASAS_MAX_DEV_PER_CHANNEL
; j
++) {
7484 pd_index
= i
*MEGASAS_MAX_DEV_PER_CHANNEL
+ j
;
7485 sdev1
= scsi_device_lookup(host
, i
, j
, 0);
7486 if (instance
->pd_list
[pd_index
].driveState
==
7487 MR_PD_STATE_SYSTEM
) {
7489 scsi_add_device(host
, i
, j
, 0);
7491 scsi_device_put(sdev1
);
7494 megasas_remove_scsi_device(sdev1
);
7500 if (doscan
& SCAN_VD_CHANNEL
) {
7501 for (i
= 0; i
< MEGASAS_MAX_LD_CHANNELS
; i
++) {
7502 for (j
= 0; j
< MEGASAS_MAX_DEV_PER_CHANNEL
; j
++) {
7503 ld_index
= (i
* MEGASAS_MAX_DEV_PER_CHANNEL
) + j
;
7504 sdev1
= scsi_device_lookup(host
, MEGASAS_MAX_PD_CHANNELS
+ i
, j
, 0);
7505 if (instance
->ld_ids
[ld_index
] != 0xff) {
7507 scsi_add_device(host
, MEGASAS_MAX_PD_CHANNELS
+ i
, j
, 0);
7509 scsi_device_put(sdev1
);
7512 megasas_remove_scsi_device(sdev1
);
7518 if (dcmd_ret
== DCMD_SUCCESS
)
7519 seq_num
= le32_to_cpu(instance
->evt_detail
->seq_num
) + 1;
7521 seq_num
= instance
->last_seq_num
;
7523 /* Register AEN with FW for latest sequence number plus 1 */
7524 class_locale
.members
.reserved
= 0;
7525 class_locale
.members
.locale
= MR_EVT_LOCALE_ALL
;
7526 class_locale
.members
.class = MR_EVT_CLASS_DEBUG
;
7528 if (instance
->aen_cmd
!= NULL
) {
7533 mutex_lock(&instance
->reset_mutex
);
7534 error
= megasas_register_aen(instance
, seq_num
,
7537 dev_err(&instance
->pdev
->dev
,
7538 "register aen failed error %x\n", error
);
7540 mutex_unlock(&instance
->reset_mutex
);
7545 * megasas_init - Driver load entry point
7547 static int __init
megasas_init(void)
7552 * Booted in kdump kernel, minimize memory footprints by
7553 * disabling few features
7555 if (reset_devices
) {
7558 dual_qdepth_disable
= 1;
7562 * Announce driver version and other information
7564 pr_info("megasas: %s\n", MEGASAS_VERSION
);
7566 spin_lock_init(&poll_aen_lock
);
7568 support_poll_for_event
= 2;
7569 support_device_change
= 1;
7571 memset(&megasas_mgmt_info
, 0, sizeof(megasas_mgmt_info
));
7574 * Register character device node
7576 rval
= register_chrdev(0, "megaraid_sas_ioctl", &megasas_mgmt_fops
);
7579 printk(KERN_DEBUG
"megasas: failed to open device node\n");
7583 megasas_mgmt_majorno
= rval
;
7586 * Register ourselves as PCI hotplug module
7588 rval
= pci_register_driver(&megasas_pci_driver
);
7591 printk(KERN_DEBUG
"megasas: PCI hotplug registration failed \n");
7595 rval
= driver_create_file(&megasas_pci_driver
.driver
,
7596 &driver_attr_version
);
7598 goto err_dcf_attr_ver
;
7600 rval
= driver_create_file(&megasas_pci_driver
.driver
,
7601 &driver_attr_release_date
);
7603 goto err_dcf_rel_date
;
7605 rval
= driver_create_file(&megasas_pci_driver
.driver
,
7606 &driver_attr_support_poll_for_event
);
7608 goto err_dcf_support_poll_for_event
;
7610 rval
= driver_create_file(&megasas_pci_driver
.driver
,
7611 &driver_attr_dbg_lvl
);
7613 goto err_dcf_dbg_lvl
;
7614 rval
= driver_create_file(&megasas_pci_driver
.driver
,
7615 &driver_attr_support_device_change
);
7617 goto err_dcf_support_device_change
;
7621 err_dcf_support_device_change
:
7622 driver_remove_file(&megasas_pci_driver
.driver
,
7623 &driver_attr_dbg_lvl
);
7625 driver_remove_file(&megasas_pci_driver
.driver
,
7626 &driver_attr_support_poll_for_event
);
7627 err_dcf_support_poll_for_event
:
7628 driver_remove_file(&megasas_pci_driver
.driver
,
7629 &driver_attr_release_date
);
7631 driver_remove_file(&megasas_pci_driver
.driver
, &driver_attr_version
);
7633 pci_unregister_driver(&megasas_pci_driver
);
7635 unregister_chrdev(megasas_mgmt_majorno
, "megaraid_sas_ioctl");
7640 * megasas_exit - Driver unload entry point
7642 static void __exit
megasas_exit(void)
7644 driver_remove_file(&megasas_pci_driver
.driver
,
7645 &driver_attr_dbg_lvl
);
7646 driver_remove_file(&megasas_pci_driver
.driver
,
7647 &driver_attr_support_poll_for_event
);
7648 driver_remove_file(&megasas_pci_driver
.driver
,
7649 &driver_attr_support_device_change
);
7650 driver_remove_file(&megasas_pci_driver
.driver
,
7651 &driver_attr_release_date
);
7652 driver_remove_file(&megasas_pci_driver
.driver
, &driver_attr_version
);
7654 pci_unregister_driver(&megasas_pci_driver
);
7655 unregister_chrdev(megasas_mgmt_majorno
, "megaraid_sas_ioctl");
7658 module_init(megasas_init
);
7659 module_exit(megasas_exit
);