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>
52 #include <linux/vmalloc.h>
54 #include <scsi/scsi.h>
55 #include <scsi/scsi_cmnd.h>
56 #include <scsi/scsi_device.h>
57 #include <scsi/scsi_host.h>
58 #include <scsi/scsi_tcq.h>
59 #include "megaraid_sas_fusion.h"
60 #include "megaraid_sas.h"
63 * Number of sectors per IO command
64 * Will be set in megasas_init_mfi if user does not provide
66 static unsigned int max_sectors
;
67 module_param_named(max_sectors
, max_sectors
, int, 0);
68 MODULE_PARM_DESC(max_sectors
,
69 "Maximum number of sectors per IO command");
71 static int msix_disable
;
72 module_param(msix_disable
, int, S_IRUGO
);
73 MODULE_PARM_DESC(msix_disable
, "Disable MSI-X interrupt handling. Default: 0");
75 static unsigned int msix_vectors
;
76 module_param(msix_vectors
, int, S_IRUGO
);
77 MODULE_PARM_DESC(msix_vectors
, "MSI-X max vector count. Default: Set by FW");
79 static int allow_vf_ioctls
;
80 module_param(allow_vf_ioctls
, int, S_IRUGO
);
81 MODULE_PARM_DESC(allow_vf_ioctls
, "Allow ioctls in SR-IOV VF mode. Default: 0");
83 static unsigned int throttlequeuedepth
= MEGASAS_THROTTLE_QUEUE_DEPTH
;
84 module_param(throttlequeuedepth
, int, S_IRUGO
);
85 MODULE_PARM_DESC(throttlequeuedepth
,
86 "Adapter queue depth when throttled due to I/O timeout. Default: 16");
88 unsigned int resetwaittime
= MEGASAS_RESET_WAIT_TIME
;
89 module_param(resetwaittime
, int, S_IRUGO
);
90 MODULE_PARM_DESC(resetwaittime
, "Wait time in seconds after I/O timeout "
91 "before resetting adapter. Default: 180");
93 int smp_affinity_enable
= 1;
94 module_param(smp_affinity_enable
, int, S_IRUGO
);
95 MODULE_PARM_DESC(smp_affinity_enable
, "SMP affinity feature enable/disable Default: enable(1)");
98 module_param(rdpq_enable
, int, S_IRUGO
);
99 MODULE_PARM_DESC(rdpq_enable
, " Allocate reply queue in chunks for large queue depth enable/disable Default: disable(0)");
101 unsigned int dual_qdepth_disable
;
102 module_param(dual_qdepth_disable
, int, S_IRUGO
);
103 MODULE_PARM_DESC(dual_qdepth_disable
, "Disable dual queue depth feature. Default: 0");
105 unsigned int scmd_timeout
= MEGASAS_DEFAULT_CMD_TIMEOUT
;
106 module_param(scmd_timeout
, int, S_IRUGO
);
107 MODULE_PARM_DESC(scmd_timeout
, "scsi command timeout (10-90s), default 90s. See megasas_reset_timer.");
109 MODULE_LICENSE("GPL");
110 MODULE_VERSION(MEGASAS_VERSION
);
111 MODULE_AUTHOR("megaraidlinux.pdl@avagotech.com");
112 MODULE_DESCRIPTION("Avago MegaRAID SAS Driver");
114 int megasas_transition_to_ready(struct megasas_instance
*instance
, int ocr
);
115 static int megasas_get_pd_list(struct megasas_instance
*instance
);
116 static int megasas_ld_list_query(struct megasas_instance
*instance
,
118 static int megasas_issue_init_mfi(struct megasas_instance
*instance
);
119 static int megasas_register_aen(struct megasas_instance
*instance
,
120 u32 seq_num
, u32 class_locale_word
);
121 static void megasas_get_pd_info(struct megasas_instance
*instance
,
122 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_CRUSADER
)},
164 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC
, PCI_DEVICE_ID_LSI_HARPOON
)},
165 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC
, PCI_DEVICE_ID_LSI_TOMCAT
)},
166 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC
, PCI_DEVICE_ID_LSI_VENTURA_4PORT
)},
167 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC
, PCI_DEVICE_ID_LSI_CRUSADER_4PORT
)},
171 MODULE_DEVICE_TABLE(pci
, megasas_pci_table
);
173 static int megasas_mgmt_majorno
;
174 struct megasas_mgmt_info megasas_mgmt_info
;
175 static struct fasync_struct
*megasas_async_queue
;
176 static DEFINE_MUTEX(megasas_async_queue_mutex
);
178 static int megasas_poll_wait_aen
;
179 static DECLARE_WAIT_QUEUE_HEAD(megasas_poll_wait
);
180 static u32 support_poll_for_event
;
182 static u32 support_device_change
;
183 static bool support_nvme_encapsulation
;
185 /* define lock for aen poll */
186 spinlock_t poll_aen_lock
;
189 megasas_complete_cmd(struct megasas_instance
*instance
, struct megasas_cmd
*cmd
,
192 megasas_read_fw_status_reg_gen2(struct megasas_register_set __iomem
*regs
);
194 megasas_adp_reset_gen2(struct megasas_instance
*instance
,
195 struct megasas_register_set __iomem
*reg_set
);
196 static irqreturn_t
megasas_isr(int irq
, void *devp
);
198 megasas_init_adapter_mfi(struct megasas_instance
*instance
);
200 megasas_build_and_issue_cmd(struct megasas_instance
*instance
,
201 struct scsi_cmnd
*scmd
);
202 static void megasas_complete_cmd_dpc(unsigned long instance_addr
);
204 wait_and_poll(struct megasas_instance
*instance
, struct megasas_cmd
*cmd
,
206 void megasas_fusion_ocr_wq(struct work_struct
*work
);
207 static int megasas_get_ld_vf_affiliation(struct megasas_instance
*instance
,
210 megasas_set_dma_mask(struct megasas_instance
*instance
);
212 megasas_alloc_ctrl_mem(struct megasas_instance
*instance
);
214 megasas_free_ctrl_mem(struct megasas_instance
*instance
);
216 megasas_alloc_ctrl_dma_buffers(struct megasas_instance
*instance
);
218 megasas_free_ctrl_dma_buffers(struct megasas_instance
*instance
);
220 megasas_init_ctrl_params(struct megasas_instance
*instance
);
223 * megasas_set_dma_settings - Populate DMA address, length and flags for DCMDs
224 * @instance: Adapter soft state
225 * @dcmd: DCMD frame inside MFI command
226 * @dma_addr: DMA address of buffer to be passed to FW
227 * @dma_len: Length of DMA buffer to be passed to FW
230 void megasas_set_dma_settings(struct megasas_instance
*instance
,
231 struct megasas_dcmd_frame
*dcmd
,
232 dma_addr_t dma_addr
, u32 dma_len
)
234 if (instance
->consistent_mask_64bit
) {
235 dcmd
->sgl
.sge64
[0].phys_addr
= cpu_to_le64(dma_addr
);
236 dcmd
->sgl
.sge64
[0].length
= cpu_to_le32(dma_len
);
237 dcmd
->flags
= cpu_to_le16(dcmd
->flags
| MFI_FRAME_SGL64
);
240 dcmd
->sgl
.sge32
[0].phys_addr
=
241 cpu_to_le32(lower_32_bits(dma_addr
));
242 dcmd
->sgl
.sge32
[0].length
= cpu_to_le32(dma_len
);
243 dcmd
->flags
= cpu_to_le16(dcmd
->flags
);
248 megasas_issue_dcmd(struct megasas_instance
*instance
, struct megasas_cmd
*cmd
)
250 instance
->instancet
->fire_cmd(instance
,
251 cmd
->frame_phys_addr
, 0, instance
->reg_set
);
256 * megasas_get_cmd - Get a command from the free pool
257 * @instance: Adapter soft state
259 * Returns a free command from the pool
261 struct megasas_cmd
*megasas_get_cmd(struct megasas_instance
265 struct megasas_cmd
*cmd
= NULL
;
267 spin_lock_irqsave(&instance
->mfi_pool_lock
, flags
);
269 if (!list_empty(&instance
->cmd_pool
)) {
270 cmd
= list_entry((&instance
->cmd_pool
)->next
,
271 struct megasas_cmd
, list
);
272 list_del_init(&cmd
->list
);
274 dev_err(&instance
->pdev
->dev
, "Command pool empty!\n");
277 spin_unlock_irqrestore(&instance
->mfi_pool_lock
, flags
);
282 * megasas_return_cmd - Return a cmd to free command pool
283 * @instance: Adapter soft state
284 * @cmd: Command packet to be returned to free command pool
287 megasas_return_cmd(struct megasas_instance
*instance
, struct megasas_cmd
*cmd
)
291 struct megasas_cmd_fusion
*cmd_fusion
;
292 struct fusion_context
*fusion
= instance
->ctrl_context
;
294 /* This flag is used only for fusion adapter.
295 * Wait for Interrupt for Polled mode DCMD
297 if (cmd
->flags
& DRV_DCMD_POLLED_MODE
)
300 spin_lock_irqsave(&instance
->mfi_pool_lock
, flags
);
303 blk_tags
= instance
->max_scsi_cmds
+ cmd
->index
;
304 cmd_fusion
= fusion
->cmd_list
[blk_tags
];
305 megasas_return_cmd_fusion(instance
, cmd_fusion
);
308 cmd
->frame_count
= 0;
310 memset(cmd
->frame
, 0, instance
->mfi_frame_size
);
311 cmd
->frame
->io
.context
= cpu_to_le32(cmd
->index
);
312 if (!fusion
&& reset_devices
)
313 cmd
->frame
->hdr
.cmd
= MFI_CMD_INVALID
;
314 list_add(&cmd
->list
, (&instance
->cmd_pool
)->next
);
316 spin_unlock_irqrestore(&instance
->mfi_pool_lock
, flags
);
321 format_timestamp(uint32_t timestamp
)
323 static char buffer
[32];
325 if ((timestamp
& 0xff000000) == 0xff000000)
326 snprintf(buffer
, sizeof(buffer
), "boot + %us", timestamp
&
329 snprintf(buffer
, sizeof(buffer
), "%us", timestamp
);
334 format_class(int8_t class)
336 static char buffer
[6];
339 case MFI_EVT_CLASS_DEBUG
:
341 case MFI_EVT_CLASS_PROGRESS
:
343 case MFI_EVT_CLASS_INFO
:
345 case MFI_EVT_CLASS_WARNING
:
347 case MFI_EVT_CLASS_CRITICAL
:
349 case MFI_EVT_CLASS_FATAL
:
351 case MFI_EVT_CLASS_DEAD
:
354 snprintf(buffer
, sizeof(buffer
), "%d", class);
360 * megasas_decode_evt: Decode FW AEN event and print critical event
362 * @instance: Adapter soft state
365 megasas_decode_evt(struct megasas_instance
*instance
)
367 struct megasas_evt_detail
*evt_detail
= instance
->evt_detail
;
368 union megasas_evt_class_locale class_locale
;
369 class_locale
.word
= le32_to_cpu(evt_detail
->cl
.word
);
371 if (class_locale
.members
.class >= MFI_EVT_CLASS_CRITICAL
)
372 dev_info(&instance
->pdev
->dev
, "%d (%s/0x%04x/%s) - %s\n",
373 le32_to_cpu(evt_detail
->seq_num
),
374 format_timestamp(le32_to_cpu(evt_detail
->time_stamp
)),
375 (class_locale
.members
.locale
),
376 format_class(class_locale
.members
.class),
377 evt_detail
->description
);
381 * The following functions are defined for xscale
382 * (deviceid : 1064R, PERC5) controllers
386 * megasas_enable_intr_xscale - Enables interrupts
387 * @regs: MFI register set
390 megasas_enable_intr_xscale(struct megasas_instance
*instance
)
392 struct megasas_register_set __iomem
*regs
;
394 regs
= instance
->reg_set
;
395 writel(0, &(regs
)->outbound_intr_mask
);
397 /* Dummy readl to force pci flush */
398 readl(®s
->outbound_intr_mask
);
402 * megasas_disable_intr_xscale -Disables interrupt
403 * @regs: MFI register set
406 megasas_disable_intr_xscale(struct megasas_instance
*instance
)
408 struct megasas_register_set __iomem
*regs
;
411 regs
= instance
->reg_set
;
412 writel(mask
, ®s
->outbound_intr_mask
);
413 /* Dummy readl to force pci flush */
414 readl(®s
->outbound_intr_mask
);
418 * megasas_read_fw_status_reg_xscale - returns the current FW status value
419 * @regs: MFI register set
422 megasas_read_fw_status_reg_xscale(struct megasas_register_set __iomem
* regs
)
424 return readl(&(regs
)->outbound_msg_0
);
427 * megasas_clear_interrupt_xscale - Check & clear interrupt
428 * @regs: MFI register set
431 megasas_clear_intr_xscale(struct megasas_register_set __iomem
* regs
)
437 * Check if it is our interrupt
439 status
= readl(®s
->outbound_intr_status
);
441 if (status
& MFI_OB_INTR_STATUS_MASK
)
442 mfiStatus
= MFI_INTR_FLAG_REPLY_MESSAGE
;
443 if (status
& MFI_XSCALE_OMR0_CHANGE_INTERRUPT
)
444 mfiStatus
|= MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE
;
447 * Clear the interrupt by writing back the same value
450 writel(status
, ®s
->outbound_intr_status
);
452 /* Dummy readl to force pci flush */
453 readl(®s
->outbound_intr_status
);
459 * megasas_fire_cmd_xscale - Sends command to the FW
460 * @frame_phys_addr : Physical address of cmd
461 * @frame_count : Number of frames for the command
462 * @regs : MFI register set
465 megasas_fire_cmd_xscale(struct megasas_instance
*instance
,
466 dma_addr_t frame_phys_addr
,
468 struct megasas_register_set __iomem
*regs
)
472 spin_lock_irqsave(&instance
->hba_lock
, flags
);
473 writel((frame_phys_addr
>> 3)|(frame_count
),
474 &(regs
)->inbound_queue_port
);
475 spin_unlock_irqrestore(&instance
->hba_lock
, flags
);
479 * megasas_adp_reset_xscale - For controller reset
480 * @regs: MFI register set
483 megasas_adp_reset_xscale(struct megasas_instance
*instance
,
484 struct megasas_register_set __iomem
*regs
)
489 writel(MFI_ADP_RESET
, ®s
->inbound_doorbell
);
491 for (i
= 0; i
< 3; i
++)
492 msleep(1000); /* sleep for 3 secs */
494 pci_read_config_dword(instance
->pdev
, MFI_1068_PCSR_OFFSET
, &pcidata
);
495 dev_notice(&instance
->pdev
->dev
, "pcidata = %x\n", pcidata
);
497 dev_notice(&instance
->pdev
->dev
, "mfi 1068 offset read=%x\n", pcidata
);
499 pci_write_config_dword(instance
->pdev
,
500 MFI_1068_PCSR_OFFSET
, pcidata
);
502 for (i
= 0; i
< 2; i
++)
503 msleep(1000); /* need to wait 2 secs again */
506 pci_read_config_dword(instance
->pdev
,
507 MFI_1068_FW_HANDSHAKE_OFFSET
, &pcidata
);
508 dev_notice(&instance
->pdev
->dev
, "1068 offset handshake read=%x\n", pcidata
);
509 if ((pcidata
& 0xffff0000) == MFI_1068_FW_READY
) {
510 dev_notice(&instance
->pdev
->dev
, "1068 offset pcidt=%x\n", pcidata
);
512 pci_write_config_dword(instance
->pdev
,
513 MFI_1068_FW_HANDSHAKE_OFFSET
, pcidata
);
520 * megasas_check_reset_xscale - For controller reset check
521 * @regs: MFI register set
524 megasas_check_reset_xscale(struct megasas_instance
*instance
,
525 struct megasas_register_set __iomem
*regs
)
527 if ((atomic_read(&instance
->adprecovery
) != MEGASAS_HBA_OPERATIONAL
) &&
528 (le32_to_cpu(*instance
->consumer
) ==
529 MEGASAS_ADPRESET_INPROG_SIGN
))
534 static struct megasas_instance_template megasas_instance_template_xscale
= {
536 .fire_cmd
= megasas_fire_cmd_xscale
,
537 .enable_intr
= megasas_enable_intr_xscale
,
538 .disable_intr
= megasas_disable_intr_xscale
,
539 .clear_intr
= megasas_clear_intr_xscale
,
540 .read_fw_status_reg
= megasas_read_fw_status_reg_xscale
,
541 .adp_reset
= megasas_adp_reset_xscale
,
542 .check_reset
= megasas_check_reset_xscale
,
543 .service_isr
= megasas_isr
,
544 .tasklet
= megasas_complete_cmd_dpc
,
545 .init_adapter
= megasas_init_adapter_mfi
,
546 .build_and_issue_cmd
= megasas_build_and_issue_cmd
,
547 .issue_dcmd
= megasas_issue_dcmd
,
551 * This is the end of set of functions & definitions specific
552 * to xscale (deviceid : 1064R, PERC5) controllers
556 * The following functions are defined for ppc (deviceid : 0x60)
561 * megasas_enable_intr_ppc - Enables interrupts
562 * @regs: MFI register set
565 megasas_enable_intr_ppc(struct megasas_instance
*instance
)
567 struct megasas_register_set __iomem
*regs
;
569 regs
= instance
->reg_set
;
570 writel(0xFFFFFFFF, &(regs
)->outbound_doorbell_clear
);
572 writel(~0x80000000, &(regs
)->outbound_intr_mask
);
574 /* Dummy readl to force pci flush */
575 readl(®s
->outbound_intr_mask
);
579 * megasas_disable_intr_ppc - Disable interrupt
580 * @regs: MFI register set
583 megasas_disable_intr_ppc(struct megasas_instance
*instance
)
585 struct megasas_register_set __iomem
*regs
;
586 u32 mask
= 0xFFFFFFFF;
588 regs
= instance
->reg_set
;
589 writel(mask
, ®s
->outbound_intr_mask
);
590 /* Dummy readl to force pci flush */
591 readl(®s
->outbound_intr_mask
);
595 * megasas_read_fw_status_reg_ppc - returns the current FW status value
596 * @regs: MFI register set
599 megasas_read_fw_status_reg_ppc(struct megasas_register_set __iomem
* regs
)
601 return readl(&(regs
)->outbound_scratch_pad
);
605 * megasas_clear_interrupt_ppc - Check & clear interrupt
606 * @regs: MFI register set
609 megasas_clear_intr_ppc(struct megasas_register_set __iomem
* regs
)
611 u32 status
, mfiStatus
= 0;
614 * Check if it is our interrupt
616 status
= readl(®s
->outbound_intr_status
);
618 if (status
& MFI_REPLY_1078_MESSAGE_INTERRUPT
)
619 mfiStatus
= MFI_INTR_FLAG_REPLY_MESSAGE
;
621 if (status
& MFI_G2_OUTBOUND_DOORBELL_CHANGE_INTERRUPT
)
622 mfiStatus
|= MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE
;
625 * Clear the interrupt by writing back the same value
627 writel(status
, ®s
->outbound_doorbell_clear
);
629 /* Dummy readl to force pci flush */
630 readl(®s
->outbound_doorbell_clear
);
636 * megasas_fire_cmd_ppc - Sends command to the FW
637 * @frame_phys_addr : Physical address of cmd
638 * @frame_count : Number of frames for the command
639 * @regs : MFI register set
642 megasas_fire_cmd_ppc(struct megasas_instance
*instance
,
643 dma_addr_t frame_phys_addr
,
645 struct megasas_register_set __iomem
*regs
)
649 spin_lock_irqsave(&instance
->hba_lock
, flags
);
650 writel((frame_phys_addr
| (frame_count
<<1))|1,
651 &(regs
)->inbound_queue_port
);
652 spin_unlock_irqrestore(&instance
->hba_lock
, flags
);
656 * megasas_check_reset_ppc - For controller reset check
657 * @regs: MFI register set
660 megasas_check_reset_ppc(struct megasas_instance
*instance
,
661 struct megasas_register_set __iomem
*regs
)
663 if (atomic_read(&instance
->adprecovery
) != MEGASAS_HBA_OPERATIONAL
)
669 static struct megasas_instance_template megasas_instance_template_ppc
= {
671 .fire_cmd
= megasas_fire_cmd_ppc
,
672 .enable_intr
= megasas_enable_intr_ppc
,
673 .disable_intr
= megasas_disable_intr_ppc
,
674 .clear_intr
= megasas_clear_intr_ppc
,
675 .read_fw_status_reg
= megasas_read_fw_status_reg_ppc
,
676 .adp_reset
= megasas_adp_reset_xscale
,
677 .check_reset
= megasas_check_reset_ppc
,
678 .service_isr
= megasas_isr
,
679 .tasklet
= megasas_complete_cmd_dpc
,
680 .init_adapter
= megasas_init_adapter_mfi
,
681 .build_and_issue_cmd
= megasas_build_and_issue_cmd
,
682 .issue_dcmd
= megasas_issue_dcmd
,
686 * megasas_enable_intr_skinny - Enables interrupts
687 * @regs: MFI register set
690 megasas_enable_intr_skinny(struct megasas_instance
*instance
)
692 struct megasas_register_set __iomem
*regs
;
694 regs
= instance
->reg_set
;
695 writel(0xFFFFFFFF, &(regs
)->outbound_intr_mask
);
697 writel(~MFI_SKINNY_ENABLE_INTERRUPT_MASK
, &(regs
)->outbound_intr_mask
);
699 /* Dummy readl to force pci flush */
700 readl(®s
->outbound_intr_mask
);
704 * megasas_disable_intr_skinny - Disables interrupt
705 * @regs: MFI register set
708 megasas_disable_intr_skinny(struct megasas_instance
*instance
)
710 struct megasas_register_set __iomem
*regs
;
711 u32 mask
= 0xFFFFFFFF;
713 regs
= instance
->reg_set
;
714 writel(mask
, ®s
->outbound_intr_mask
);
715 /* Dummy readl to force pci flush */
716 readl(®s
->outbound_intr_mask
);
720 * megasas_read_fw_status_reg_skinny - returns the current FW status value
721 * @regs: MFI register set
724 megasas_read_fw_status_reg_skinny(struct megasas_register_set __iomem
*regs
)
726 return readl(&(regs
)->outbound_scratch_pad
);
730 * megasas_clear_interrupt_skinny - Check & clear interrupt
731 * @regs: MFI register set
734 megasas_clear_intr_skinny(struct megasas_register_set __iomem
*regs
)
740 * Check if it is our interrupt
742 status
= readl(®s
->outbound_intr_status
);
744 if (!(status
& MFI_SKINNY_ENABLE_INTERRUPT_MASK
)) {
749 * Check if it is our interrupt
751 if ((megasas_read_fw_status_reg_skinny(regs
) & MFI_STATE_MASK
) ==
753 mfiStatus
= MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE
;
755 mfiStatus
= MFI_INTR_FLAG_REPLY_MESSAGE
;
758 * Clear the interrupt by writing back the same value
760 writel(status
, ®s
->outbound_intr_status
);
763 * dummy read to flush PCI
765 readl(®s
->outbound_intr_status
);
771 * megasas_fire_cmd_skinny - Sends command to the FW
772 * @frame_phys_addr : Physical address of cmd
773 * @frame_count : Number of frames for the command
774 * @regs : MFI register set
777 megasas_fire_cmd_skinny(struct megasas_instance
*instance
,
778 dma_addr_t frame_phys_addr
,
780 struct megasas_register_set __iomem
*regs
)
784 spin_lock_irqsave(&instance
->hba_lock
, flags
);
785 writel(upper_32_bits(frame_phys_addr
),
786 &(regs
)->inbound_high_queue_port
);
787 writel((lower_32_bits(frame_phys_addr
) | (frame_count
<<1))|1,
788 &(regs
)->inbound_low_queue_port
);
790 spin_unlock_irqrestore(&instance
->hba_lock
, flags
);
794 * megasas_check_reset_skinny - For controller reset check
795 * @regs: MFI register set
798 megasas_check_reset_skinny(struct megasas_instance
*instance
,
799 struct megasas_register_set __iomem
*regs
)
801 if (atomic_read(&instance
->adprecovery
) != MEGASAS_HBA_OPERATIONAL
)
807 static struct megasas_instance_template megasas_instance_template_skinny
= {
809 .fire_cmd
= megasas_fire_cmd_skinny
,
810 .enable_intr
= megasas_enable_intr_skinny
,
811 .disable_intr
= megasas_disable_intr_skinny
,
812 .clear_intr
= megasas_clear_intr_skinny
,
813 .read_fw_status_reg
= megasas_read_fw_status_reg_skinny
,
814 .adp_reset
= megasas_adp_reset_gen2
,
815 .check_reset
= megasas_check_reset_skinny
,
816 .service_isr
= megasas_isr
,
817 .tasklet
= megasas_complete_cmd_dpc
,
818 .init_adapter
= megasas_init_adapter_mfi
,
819 .build_and_issue_cmd
= megasas_build_and_issue_cmd
,
820 .issue_dcmd
= megasas_issue_dcmd
,
825 * The following functions are defined for gen2 (deviceid : 0x78 0x79)
830 * megasas_enable_intr_gen2 - Enables interrupts
831 * @regs: MFI register set
834 megasas_enable_intr_gen2(struct megasas_instance
*instance
)
836 struct megasas_register_set __iomem
*regs
;
838 regs
= instance
->reg_set
;
839 writel(0xFFFFFFFF, &(regs
)->outbound_doorbell_clear
);
841 /* write ~0x00000005 (4 & 1) to the intr mask*/
842 writel(~MFI_GEN2_ENABLE_INTERRUPT_MASK
, &(regs
)->outbound_intr_mask
);
844 /* Dummy readl to force pci flush */
845 readl(®s
->outbound_intr_mask
);
849 * megasas_disable_intr_gen2 - Disables interrupt
850 * @regs: MFI register set
853 megasas_disable_intr_gen2(struct megasas_instance
*instance
)
855 struct megasas_register_set __iomem
*regs
;
856 u32 mask
= 0xFFFFFFFF;
858 regs
= instance
->reg_set
;
859 writel(mask
, ®s
->outbound_intr_mask
);
860 /* Dummy readl to force pci flush */
861 readl(®s
->outbound_intr_mask
);
865 * megasas_read_fw_status_reg_gen2 - returns the current FW status value
866 * @regs: MFI register set
869 megasas_read_fw_status_reg_gen2(struct megasas_register_set __iomem
*regs
)
871 return readl(&(regs
)->outbound_scratch_pad
);
875 * megasas_clear_interrupt_gen2 - Check & clear interrupt
876 * @regs: MFI register set
879 megasas_clear_intr_gen2(struct megasas_register_set __iomem
*regs
)
885 * Check if it is our interrupt
887 status
= readl(®s
->outbound_intr_status
);
889 if (status
& MFI_INTR_FLAG_REPLY_MESSAGE
) {
890 mfiStatus
= MFI_INTR_FLAG_REPLY_MESSAGE
;
892 if (status
& MFI_G2_OUTBOUND_DOORBELL_CHANGE_INTERRUPT
) {
893 mfiStatus
|= MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE
;
897 * Clear the interrupt by writing back the same value
900 writel(status
, ®s
->outbound_doorbell_clear
);
902 /* Dummy readl to force pci flush */
903 readl(®s
->outbound_intr_status
);
908 * megasas_fire_cmd_gen2 - Sends command to the FW
909 * @frame_phys_addr : Physical address of cmd
910 * @frame_count : Number of frames for the command
911 * @regs : MFI register set
914 megasas_fire_cmd_gen2(struct megasas_instance
*instance
,
915 dma_addr_t frame_phys_addr
,
917 struct megasas_register_set __iomem
*regs
)
921 spin_lock_irqsave(&instance
->hba_lock
, flags
);
922 writel((frame_phys_addr
| (frame_count
<<1))|1,
923 &(regs
)->inbound_queue_port
);
924 spin_unlock_irqrestore(&instance
->hba_lock
, flags
);
928 * megasas_adp_reset_gen2 - For controller reset
929 * @regs: MFI register set
932 megasas_adp_reset_gen2(struct megasas_instance
*instance
,
933 struct megasas_register_set __iomem
*reg_set
)
937 u32 __iomem
*seq_offset
= ®_set
->seq_offset
;
938 u32 __iomem
*hostdiag_offset
= ®_set
->host_diag
;
940 if (instance
->instancet
== &megasas_instance_template_skinny
) {
941 seq_offset
= ®_set
->fusion_seq_offset
;
942 hostdiag_offset
= ®_set
->fusion_host_diag
;
945 writel(0, seq_offset
);
946 writel(4, seq_offset
);
947 writel(0xb, seq_offset
);
948 writel(2, seq_offset
);
949 writel(7, seq_offset
);
950 writel(0xd, seq_offset
);
954 HostDiag
= (u32
)readl(hostdiag_offset
);
956 while (!(HostDiag
& DIAG_WRITE_ENABLE
)) {
958 HostDiag
= (u32
)readl(hostdiag_offset
);
959 dev_notice(&instance
->pdev
->dev
, "RESETGEN2: retry=%x, hostdiag=%x\n",
967 dev_notice(&instance
->pdev
->dev
, "ADP_RESET_GEN2: HostDiag=%x\n", HostDiag
);
969 writel((HostDiag
| DIAG_RESET_ADAPTER
), hostdiag_offset
);
973 HostDiag
= (u32
)readl(hostdiag_offset
);
974 while (HostDiag
& DIAG_RESET_ADAPTER
) {
976 HostDiag
= (u32
)readl(hostdiag_offset
);
977 dev_notice(&instance
->pdev
->dev
, "RESET_GEN2: retry=%x, hostdiag=%x\n",
988 * megasas_check_reset_gen2 - For controller reset check
989 * @regs: MFI register set
992 megasas_check_reset_gen2(struct megasas_instance
*instance
,
993 struct megasas_register_set __iomem
*regs
)
995 if (atomic_read(&instance
->adprecovery
) != MEGASAS_HBA_OPERATIONAL
)
1001 static struct megasas_instance_template megasas_instance_template_gen2
= {
1003 .fire_cmd
= megasas_fire_cmd_gen2
,
1004 .enable_intr
= megasas_enable_intr_gen2
,
1005 .disable_intr
= megasas_disable_intr_gen2
,
1006 .clear_intr
= megasas_clear_intr_gen2
,
1007 .read_fw_status_reg
= megasas_read_fw_status_reg_gen2
,
1008 .adp_reset
= megasas_adp_reset_gen2
,
1009 .check_reset
= megasas_check_reset_gen2
,
1010 .service_isr
= megasas_isr
,
1011 .tasklet
= megasas_complete_cmd_dpc
,
1012 .init_adapter
= megasas_init_adapter_mfi
,
1013 .build_and_issue_cmd
= megasas_build_and_issue_cmd
,
1014 .issue_dcmd
= megasas_issue_dcmd
,
1018 * This is the end of set of functions & definitions
1019 * specific to gen2 (deviceid : 0x78, 0x79) controllers
1023 * Template added for TB (Fusion)
1025 extern struct megasas_instance_template megasas_instance_template_fusion
;
1028 * megasas_issue_polled - Issues a polling command
1029 * @instance: Adapter soft state
1030 * @cmd: Command packet to be issued
1032 * For polling, MFI requires the cmd_status to be set to MFI_STAT_INVALID_STATUS before posting.
1035 megasas_issue_polled(struct megasas_instance
*instance
, struct megasas_cmd
*cmd
)
1037 struct megasas_header
*frame_hdr
= &cmd
->frame
->hdr
;
1039 frame_hdr
->cmd_status
= MFI_STAT_INVALID_STATUS
;
1040 frame_hdr
->flags
|= cpu_to_le16(MFI_FRAME_DONT_POST_IN_REPLY_QUEUE
);
1042 if (atomic_read(&instance
->adprecovery
) == MEGASAS_HW_CRITICAL_ERROR
) {
1043 dev_err(&instance
->pdev
->dev
, "Failed from %s %d\n",
1044 __func__
, __LINE__
);
1045 return DCMD_NOT_FIRED
;
1048 instance
->instancet
->issue_dcmd(instance
, cmd
);
1050 return wait_and_poll(instance
, cmd
, instance
->requestorId
?
1051 MEGASAS_ROUTINE_WAIT_TIME_VF
: MFI_IO_TIMEOUT_SECS
);
1055 * megasas_issue_blocked_cmd - Synchronous wrapper around regular FW cmds
1056 * @instance: Adapter soft state
1057 * @cmd: Command to be issued
1058 * @timeout: Timeout in seconds
1060 * This function waits on an event for the command to be returned from ISR.
1061 * Max wait time is MEGASAS_INTERNAL_CMD_WAIT_TIME secs
1062 * Used to issue ioctl commands.
1065 megasas_issue_blocked_cmd(struct megasas_instance
*instance
,
1066 struct megasas_cmd
*cmd
, int timeout
)
1069 cmd
->cmd_status_drv
= MFI_STAT_INVALID_STATUS
;
1071 if (atomic_read(&instance
->adprecovery
) == MEGASAS_HW_CRITICAL_ERROR
) {
1072 dev_err(&instance
->pdev
->dev
, "Failed from %s %d\n",
1073 __func__
, __LINE__
);
1074 return DCMD_NOT_FIRED
;
1077 instance
->instancet
->issue_dcmd(instance
, cmd
);
1080 ret
= wait_event_timeout(instance
->int_cmd_wait_q
,
1081 cmd
->cmd_status_drv
!= MFI_STAT_INVALID_STATUS
, timeout
* HZ
);
1083 dev_err(&instance
->pdev
->dev
, "Failed from %s %d DCMD Timed out\n",
1084 __func__
, __LINE__
);
1085 return DCMD_TIMEOUT
;
1088 wait_event(instance
->int_cmd_wait_q
,
1089 cmd
->cmd_status_drv
!= MFI_STAT_INVALID_STATUS
);
1091 return (cmd
->cmd_status_drv
== MFI_STAT_OK
) ?
1092 DCMD_SUCCESS
: DCMD_FAILED
;
1096 * megasas_issue_blocked_abort_cmd - Aborts previously issued cmd
1097 * @instance: Adapter soft state
1098 * @cmd_to_abort: Previously issued cmd to be aborted
1099 * @timeout: Timeout in seconds
1101 * MFI firmware can abort previously issued AEN comamnd (automatic event
1102 * notification). The megasas_issue_blocked_abort_cmd() issues such abort
1103 * cmd and waits for return status.
1104 * Max wait time is MEGASAS_INTERNAL_CMD_WAIT_TIME secs
1107 megasas_issue_blocked_abort_cmd(struct megasas_instance
*instance
,
1108 struct megasas_cmd
*cmd_to_abort
, int timeout
)
1110 struct megasas_cmd
*cmd
;
1111 struct megasas_abort_frame
*abort_fr
;
1114 cmd
= megasas_get_cmd(instance
);
1119 abort_fr
= &cmd
->frame
->abort
;
1122 * Prepare and issue the abort frame
1124 abort_fr
->cmd
= MFI_CMD_ABORT
;
1125 abort_fr
->cmd_status
= MFI_STAT_INVALID_STATUS
;
1126 abort_fr
->flags
= cpu_to_le16(0);
1127 abort_fr
->abort_context
= cpu_to_le32(cmd_to_abort
->index
);
1128 abort_fr
->abort_mfi_phys_addr_lo
=
1129 cpu_to_le32(lower_32_bits(cmd_to_abort
->frame_phys_addr
));
1130 abort_fr
->abort_mfi_phys_addr_hi
=
1131 cpu_to_le32(upper_32_bits(cmd_to_abort
->frame_phys_addr
));
1134 cmd
->cmd_status_drv
= MFI_STAT_INVALID_STATUS
;
1136 if (atomic_read(&instance
->adprecovery
) == MEGASAS_HW_CRITICAL_ERROR
) {
1137 dev_err(&instance
->pdev
->dev
, "Failed from %s %d\n",
1138 __func__
, __LINE__
);
1139 return DCMD_NOT_FIRED
;
1142 instance
->instancet
->issue_dcmd(instance
, cmd
);
1145 ret
= wait_event_timeout(instance
->abort_cmd_wait_q
,
1146 cmd
->cmd_status_drv
!= MFI_STAT_INVALID_STATUS
, timeout
* HZ
);
1148 dev_err(&instance
->pdev
->dev
, "Failed from %s %d Abort Timed out\n",
1149 __func__
, __LINE__
);
1150 return DCMD_TIMEOUT
;
1153 wait_event(instance
->abort_cmd_wait_q
,
1154 cmd
->cmd_status_drv
!= MFI_STAT_INVALID_STATUS
);
1158 megasas_return_cmd(instance
, cmd
);
1159 return (cmd
->cmd_status_drv
== MFI_STAT_OK
) ?
1160 DCMD_SUCCESS
: DCMD_FAILED
;
1164 * megasas_make_sgl32 - Prepares 32-bit SGL
1165 * @instance: Adapter soft state
1166 * @scp: SCSI command from the mid-layer
1167 * @mfi_sgl: SGL to be filled in
1169 * If successful, this function returns the number of SG elements. Otherwise,
1173 megasas_make_sgl32(struct megasas_instance
*instance
, struct scsi_cmnd
*scp
,
1174 union megasas_sgl
*mfi_sgl
)
1178 struct scatterlist
*os_sgl
;
1180 sge_count
= scsi_dma_map(scp
);
1181 BUG_ON(sge_count
< 0);
1184 scsi_for_each_sg(scp
, os_sgl
, sge_count
, i
) {
1185 mfi_sgl
->sge32
[i
].length
= cpu_to_le32(sg_dma_len(os_sgl
));
1186 mfi_sgl
->sge32
[i
].phys_addr
= cpu_to_le32(sg_dma_address(os_sgl
));
1193 * megasas_make_sgl64 - Prepares 64-bit SGL
1194 * @instance: Adapter soft state
1195 * @scp: SCSI command from the mid-layer
1196 * @mfi_sgl: SGL to be filled in
1198 * If successful, this function returns the number of SG elements. Otherwise,
1202 megasas_make_sgl64(struct megasas_instance
*instance
, struct scsi_cmnd
*scp
,
1203 union megasas_sgl
*mfi_sgl
)
1207 struct scatterlist
*os_sgl
;
1209 sge_count
= scsi_dma_map(scp
);
1210 BUG_ON(sge_count
< 0);
1213 scsi_for_each_sg(scp
, os_sgl
, sge_count
, i
) {
1214 mfi_sgl
->sge64
[i
].length
= cpu_to_le32(sg_dma_len(os_sgl
));
1215 mfi_sgl
->sge64
[i
].phys_addr
= cpu_to_le64(sg_dma_address(os_sgl
));
1222 * megasas_make_sgl_skinny - Prepares IEEE SGL
1223 * @instance: Adapter soft state
1224 * @scp: SCSI command from the mid-layer
1225 * @mfi_sgl: SGL to be filled in
1227 * If successful, this function returns the number of SG elements. Otherwise,
1231 megasas_make_sgl_skinny(struct megasas_instance
*instance
,
1232 struct scsi_cmnd
*scp
, union megasas_sgl
*mfi_sgl
)
1236 struct scatterlist
*os_sgl
;
1238 sge_count
= scsi_dma_map(scp
);
1241 scsi_for_each_sg(scp
, os_sgl
, sge_count
, i
) {
1242 mfi_sgl
->sge_skinny
[i
].length
=
1243 cpu_to_le32(sg_dma_len(os_sgl
));
1244 mfi_sgl
->sge_skinny
[i
].phys_addr
=
1245 cpu_to_le64(sg_dma_address(os_sgl
));
1246 mfi_sgl
->sge_skinny
[i
].flag
= cpu_to_le32(0);
1253 * megasas_get_frame_count - Computes the number of frames
1254 * @frame_type : type of frame- io or pthru frame
1255 * @sge_count : number of sg elements
1257 * Returns the number of frames required for numnber of sge's (sge_count)
1260 static u32
megasas_get_frame_count(struct megasas_instance
*instance
,
1261 u8 sge_count
, u8 frame_type
)
1266 u32 frame_count
= 0;
1268 sge_sz
= (IS_DMA64
) ? sizeof(struct megasas_sge64
) :
1269 sizeof(struct megasas_sge32
);
1271 if (instance
->flag_ieee
) {
1272 sge_sz
= sizeof(struct megasas_sge_skinny
);
1276 * Main frame can contain 2 SGEs for 64-bit SGLs and
1277 * 3 SGEs for 32-bit SGLs for ldio &
1278 * 1 SGEs for 64-bit SGLs and
1279 * 2 SGEs for 32-bit SGLs for pthru frame
1281 if (unlikely(frame_type
== PTHRU_FRAME
)) {
1282 if (instance
->flag_ieee
== 1) {
1283 num_cnt
= sge_count
- 1;
1284 } else if (IS_DMA64
)
1285 num_cnt
= sge_count
- 1;
1287 num_cnt
= sge_count
- 2;
1289 if (instance
->flag_ieee
== 1) {
1290 num_cnt
= sge_count
- 1;
1291 } else if (IS_DMA64
)
1292 num_cnt
= sge_count
- 2;
1294 num_cnt
= sge_count
- 3;
1298 sge_bytes
= sge_sz
* num_cnt
;
1300 frame_count
= (sge_bytes
/ MEGAMFI_FRAME_SIZE
) +
1301 ((sge_bytes
% MEGAMFI_FRAME_SIZE
) ? 1 : 0) ;
1306 if (frame_count
> 7)
1312 * megasas_build_dcdb - Prepares a direct cdb (DCDB) command
1313 * @instance: Adapter soft state
1314 * @scp: SCSI command
1315 * @cmd: Command to be prepared in
1317 * This function prepares CDB commands. These are typcially pass-through
1318 * commands to the devices.
1321 megasas_build_dcdb(struct megasas_instance
*instance
, struct scsi_cmnd
*scp
,
1322 struct megasas_cmd
*cmd
)
1327 struct megasas_pthru_frame
*pthru
;
1329 is_logical
= MEGASAS_IS_LOGICAL(scp
->device
);
1330 device_id
= MEGASAS_DEV_INDEX(scp
);
1331 pthru
= (struct megasas_pthru_frame
*)cmd
->frame
;
1333 if (scp
->sc_data_direction
== DMA_TO_DEVICE
)
1334 flags
= MFI_FRAME_DIR_WRITE
;
1335 else if (scp
->sc_data_direction
== DMA_FROM_DEVICE
)
1336 flags
= MFI_FRAME_DIR_READ
;
1337 else if (scp
->sc_data_direction
== DMA_NONE
)
1338 flags
= MFI_FRAME_DIR_NONE
;
1340 if (instance
->flag_ieee
== 1) {
1341 flags
|= MFI_FRAME_IEEE
;
1345 * Prepare the DCDB frame
1347 pthru
->cmd
= (is_logical
) ? MFI_CMD_LD_SCSI_IO
: MFI_CMD_PD_SCSI_IO
;
1348 pthru
->cmd_status
= 0x0;
1349 pthru
->scsi_status
= 0x0;
1350 pthru
->target_id
= device_id
;
1351 pthru
->lun
= scp
->device
->lun
;
1352 pthru
->cdb_len
= scp
->cmd_len
;
1355 pthru
->flags
= cpu_to_le16(flags
);
1356 pthru
->data_xfer_len
= cpu_to_le32(scsi_bufflen(scp
));
1358 memcpy(pthru
->cdb
, scp
->cmnd
, scp
->cmd_len
);
1361 * If the command is for the tape device, set the
1362 * pthru timeout to the os layer timeout value.
1364 if (scp
->device
->type
== TYPE_TAPE
) {
1365 if ((scp
->request
->timeout
/ HZ
) > 0xFFFF)
1366 pthru
->timeout
= cpu_to_le16(0xFFFF);
1368 pthru
->timeout
= cpu_to_le16(scp
->request
->timeout
/ HZ
);
1374 if (instance
->flag_ieee
== 1) {
1375 pthru
->flags
|= cpu_to_le16(MFI_FRAME_SGL64
);
1376 pthru
->sge_count
= megasas_make_sgl_skinny(instance
, scp
,
1378 } else if (IS_DMA64
) {
1379 pthru
->flags
|= cpu_to_le16(MFI_FRAME_SGL64
);
1380 pthru
->sge_count
= megasas_make_sgl64(instance
, scp
,
1383 pthru
->sge_count
= megasas_make_sgl32(instance
, scp
,
1386 if (pthru
->sge_count
> instance
->max_num_sge
) {
1387 dev_err(&instance
->pdev
->dev
, "DCDB too many SGE NUM=%x\n",
1393 * Sense info specific
1395 pthru
->sense_len
= SCSI_SENSE_BUFFERSIZE
;
1396 pthru
->sense_buf_phys_addr_hi
=
1397 cpu_to_le32(upper_32_bits(cmd
->sense_phys_addr
));
1398 pthru
->sense_buf_phys_addr_lo
=
1399 cpu_to_le32(lower_32_bits(cmd
->sense_phys_addr
));
1402 * Compute the total number of frames this command consumes. FW uses
1403 * this number to pull sufficient number of frames from host memory.
1405 cmd
->frame_count
= megasas_get_frame_count(instance
, pthru
->sge_count
,
1408 return cmd
->frame_count
;
1412 * megasas_build_ldio - Prepares IOs to logical devices
1413 * @instance: Adapter soft state
1414 * @scp: SCSI command
1415 * @cmd: Command to be prepared
1417 * Frames (and accompanying SGLs) for regular SCSI IOs use this function.
1420 megasas_build_ldio(struct megasas_instance
*instance
, struct scsi_cmnd
*scp
,
1421 struct megasas_cmd
*cmd
)
1424 u8 sc
= scp
->cmnd
[0];
1426 struct megasas_io_frame
*ldio
;
1428 device_id
= MEGASAS_DEV_INDEX(scp
);
1429 ldio
= (struct megasas_io_frame
*)cmd
->frame
;
1431 if (scp
->sc_data_direction
== DMA_TO_DEVICE
)
1432 flags
= MFI_FRAME_DIR_WRITE
;
1433 else if (scp
->sc_data_direction
== DMA_FROM_DEVICE
)
1434 flags
= MFI_FRAME_DIR_READ
;
1436 if (instance
->flag_ieee
== 1) {
1437 flags
|= MFI_FRAME_IEEE
;
1441 * Prepare the Logical IO frame: 2nd bit is zero for all read cmds
1443 ldio
->cmd
= (sc
& 0x02) ? MFI_CMD_LD_WRITE
: MFI_CMD_LD_READ
;
1444 ldio
->cmd_status
= 0x0;
1445 ldio
->scsi_status
= 0x0;
1446 ldio
->target_id
= device_id
;
1448 ldio
->reserved_0
= 0;
1450 ldio
->flags
= cpu_to_le16(flags
);
1451 ldio
->start_lba_hi
= 0;
1452 ldio
->access_byte
= (scp
->cmd_len
!= 6) ? scp
->cmnd
[1] : 0;
1455 * 6-byte READ(0x08) or WRITE(0x0A) cdb
1457 if (scp
->cmd_len
== 6) {
1458 ldio
->lba_count
= cpu_to_le32((u32
) scp
->cmnd
[4]);
1459 ldio
->start_lba_lo
= cpu_to_le32(((u32
) scp
->cmnd
[1] << 16) |
1460 ((u32
) scp
->cmnd
[2] << 8) |
1461 (u32
) scp
->cmnd
[3]);
1463 ldio
->start_lba_lo
&= cpu_to_le32(0x1FFFFF);
1467 * 10-byte READ(0x28) or WRITE(0x2A) cdb
1469 else if (scp
->cmd_len
== 10) {
1470 ldio
->lba_count
= cpu_to_le32((u32
) scp
->cmnd
[8] |
1471 ((u32
) scp
->cmnd
[7] << 8));
1472 ldio
->start_lba_lo
= cpu_to_le32(((u32
) scp
->cmnd
[2] << 24) |
1473 ((u32
) scp
->cmnd
[3] << 16) |
1474 ((u32
) scp
->cmnd
[4] << 8) |
1475 (u32
) scp
->cmnd
[5]);
1479 * 12-byte READ(0xA8) or WRITE(0xAA) cdb
1481 else if (scp
->cmd_len
== 12) {
1482 ldio
->lba_count
= cpu_to_le32(((u32
) scp
->cmnd
[6] << 24) |
1483 ((u32
) scp
->cmnd
[7] << 16) |
1484 ((u32
) scp
->cmnd
[8] << 8) |
1485 (u32
) scp
->cmnd
[9]);
1487 ldio
->start_lba_lo
= cpu_to_le32(((u32
) scp
->cmnd
[2] << 24) |
1488 ((u32
) scp
->cmnd
[3] << 16) |
1489 ((u32
) scp
->cmnd
[4] << 8) |
1490 (u32
) scp
->cmnd
[5]);
1494 * 16-byte READ(0x88) or WRITE(0x8A) cdb
1496 else if (scp
->cmd_len
== 16) {
1497 ldio
->lba_count
= cpu_to_le32(((u32
) scp
->cmnd
[10] << 24) |
1498 ((u32
) scp
->cmnd
[11] << 16) |
1499 ((u32
) scp
->cmnd
[12] << 8) |
1500 (u32
) scp
->cmnd
[13]);
1502 ldio
->start_lba_lo
= cpu_to_le32(((u32
) scp
->cmnd
[6] << 24) |
1503 ((u32
) scp
->cmnd
[7] << 16) |
1504 ((u32
) scp
->cmnd
[8] << 8) |
1505 (u32
) scp
->cmnd
[9]);
1507 ldio
->start_lba_hi
= cpu_to_le32(((u32
) scp
->cmnd
[2] << 24) |
1508 ((u32
) scp
->cmnd
[3] << 16) |
1509 ((u32
) scp
->cmnd
[4] << 8) |
1510 (u32
) scp
->cmnd
[5]);
1517 if (instance
->flag_ieee
) {
1518 ldio
->flags
|= cpu_to_le16(MFI_FRAME_SGL64
);
1519 ldio
->sge_count
= megasas_make_sgl_skinny(instance
, scp
,
1521 } else if (IS_DMA64
) {
1522 ldio
->flags
|= cpu_to_le16(MFI_FRAME_SGL64
);
1523 ldio
->sge_count
= megasas_make_sgl64(instance
, scp
, &ldio
->sgl
);
1525 ldio
->sge_count
= megasas_make_sgl32(instance
, scp
, &ldio
->sgl
);
1527 if (ldio
->sge_count
> instance
->max_num_sge
) {
1528 dev_err(&instance
->pdev
->dev
, "build_ld_io: sge_count = %x\n",
1534 * Sense info specific
1536 ldio
->sense_len
= SCSI_SENSE_BUFFERSIZE
;
1537 ldio
->sense_buf_phys_addr_hi
= 0;
1538 ldio
->sense_buf_phys_addr_lo
= cpu_to_le32(cmd
->sense_phys_addr
);
1541 * Compute the total number of frames this command consumes. FW uses
1542 * this number to pull sufficient number of frames from host memory.
1544 cmd
->frame_count
= megasas_get_frame_count(instance
,
1545 ldio
->sge_count
, IO_FRAME
);
1547 return cmd
->frame_count
;
1551 * megasas_cmd_type - Checks if the cmd is for logical drive/sysPD
1552 * and whether it's RW or non RW
1553 * @scmd: SCSI command
1556 inline int megasas_cmd_type(struct scsi_cmnd
*cmd
)
1560 switch (cmd
->cmnd
[0]) {
1569 ret
= (MEGASAS_IS_LOGICAL(cmd
->device
)) ?
1570 READ_WRITE_LDIO
: READ_WRITE_SYSPDIO
;
1573 ret
= (MEGASAS_IS_LOGICAL(cmd
->device
)) ?
1574 NON_READ_WRITE_LDIO
: NON_READ_WRITE_SYSPDIO
;
1580 * megasas_dump_pending_frames - Dumps the frame address of all pending cmds
1582 * @instance: Adapter soft state
1585 megasas_dump_pending_frames(struct megasas_instance
*instance
)
1587 struct megasas_cmd
*cmd
;
1589 union megasas_sgl
*mfi_sgl
;
1590 struct megasas_io_frame
*ldio
;
1591 struct megasas_pthru_frame
*pthru
;
1593 u16 max_cmd
= instance
->max_fw_cmds
;
1595 dev_err(&instance
->pdev
->dev
, "[%d]: Dumping Frame Phys Address of all pending cmds in FW\n",instance
->host
->host_no
);
1596 dev_err(&instance
->pdev
->dev
, "[%d]: Total OS Pending cmds : %d\n",instance
->host
->host_no
,atomic_read(&instance
->fw_outstanding
));
1598 dev_err(&instance
->pdev
->dev
, "[%d]: 64 bit SGLs were sent to FW\n",instance
->host
->host_no
);
1600 dev_err(&instance
->pdev
->dev
, "[%d]: 32 bit SGLs were sent to FW\n",instance
->host
->host_no
);
1602 dev_err(&instance
->pdev
->dev
, "[%d]: Pending OS cmds in FW : \n",instance
->host
->host_no
);
1603 for (i
= 0; i
< max_cmd
; i
++) {
1604 cmd
= instance
->cmd_list
[i
];
1607 dev_err(&instance
->pdev
->dev
, "[%d]: Frame addr :0x%08lx : ",instance
->host
->host_no
,(unsigned long)cmd
->frame_phys_addr
);
1608 if (megasas_cmd_type(cmd
->scmd
) == READ_WRITE_LDIO
) {
1609 ldio
= (struct megasas_io_frame
*)cmd
->frame
;
1610 mfi_sgl
= &ldio
->sgl
;
1611 sgcount
= ldio
->sge_count
;
1612 dev_err(&instance
->pdev
->dev
, "[%d]: frame count : 0x%x, Cmd : 0x%x, Tgt id : 0x%x,"
1613 " lba lo : 0x%x, lba_hi : 0x%x, sense_buf addr : 0x%x,sge count : 0x%x\n",
1614 instance
->host
->host_no
, cmd
->frame_count
, ldio
->cmd
, ldio
->target_id
,
1615 le32_to_cpu(ldio
->start_lba_lo
), le32_to_cpu(ldio
->start_lba_hi
),
1616 le32_to_cpu(ldio
->sense_buf_phys_addr_lo
), sgcount
);
1618 pthru
= (struct megasas_pthru_frame
*) cmd
->frame
;
1619 mfi_sgl
= &pthru
->sgl
;
1620 sgcount
= pthru
->sge_count
;
1621 dev_err(&instance
->pdev
->dev
, "[%d]: frame count : 0x%x, Cmd : 0x%x, Tgt id : 0x%x, "
1622 "lun : 0x%x, cdb_len : 0x%x, data xfer len : 0x%x, sense_buf addr : 0x%x,sge count : 0x%x\n",
1623 instance
->host
->host_no
, cmd
->frame_count
, pthru
->cmd
, pthru
->target_id
,
1624 pthru
->lun
, pthru
->cdb_len
, le32_to_cpu(pthru
->data_xfer_len
),
1625 le32_to_cpu(pthru
->sense_buf_phys_addr_lo
), sgcount
);
1627 if (megasas_dbg_lvl
& MEGASAS_DBG_LVL
) {
1628 for (n
= 0; n
< sgcount
; n
++) {
1630 dev_err(&instance
->pdev
->dev
, "sgl len : 0x%x, sgl addr : 0x%llx\n",
1631 le32_to_cpu(mfi_sgl
->sge64
[n
].length
),
1632 le64_to_cpu(mfi_sgl
->sge64
[n
].phys_addr
));
1634 dev_err(&instance
->pdev
->dev
, "sgl len : 0x%x, sgl addr : 0x%x\n",
1635 le32_to_cpu(mfi_sgl
->sge32
[n
].length
),
1636 le32_to_cpu(mfi_sgl
->sge32
[n
].phys_addr
));
1640 dev_err(&instance
->pdev
->dev
, "[%d]: Pending Internal cmds in FW : \n",instance
->host
->host_no
);
1641 for (i
= 0; i
< max_cmd
; i
++) {
1643 cmd
= instance
->cmd_list
[i
];
1645 if (cmd
->sync_cmd
== 1)
1646 dev_err(&instance
->pdev
->dev
, "0x%08lx : ", (unsigned long)cmd
->frame_phys_addr
);
1648 dev_err(&instance
->pdev
->dev
, "[%d]: Dumping Done\n\n",instance
->host
->host_no
);
1652 megasas_build_and_issue_cmd(struct megasas_instance
*instance
,
1653 struct scsi_cmnd
*scmd
)
1655 struct megasas_cmd
*cmd
;
1658 cmd
= megasas_get_cmd(instance
);
1660 return SCSI_MLQUEUE_HOST_BUSY
;
1663 * Logical drive command
1665 if (megasas_cmd_type(scmd
) == READ_WRITE_LDIO
)
1666 frame_count
= megasas_build_ldio(instance
, scmd
, cmd
);
1668 frame_count
= megasas_build_dcdb(instance
, scmd
, cmd
);
1671 goto out_return_cmd
;
1674 scmd
->SCp
.ptr
= (char *)cmd
;
1677 * Issue the command to the FW
1679 atomic_inc(&instance
->fw_outstanding
);
1681 instance
->instancet
->fire_cmd(instance
, cmd
->frame_phys_addr
,
1682 cmd
->frame_count
-1, instance
->reg_set
);
1686 megasas_return_cmd(instance
, cmd
);
1687 return SCSI_MLQUEUE_HOST_BUSY
;
1692 * megasas_queue_command - Queue entry point
1693 * @scmd: SCSI command to be queued
1694 * @done: Callback entry point
1697 megasas_queue_command(struct Scsi_Host
*shost
, struct scsi_cmnd
*scmd
)
1699 struct megasas_instance
*instance
;
1700 struct MR_PRIV_DEVICE
*mr_device_priv_data
;
1702 instance
= (struct megasas_instance
*)
1703 scmd
->device
->host
->hostdata
;
1705 if (instance
->unload
== 1) {
1706 scmd
->result
= DID_NO_CONNECT
<< 16;
1707 scmd
->scsi_done(scmd
);
1711 if (instance
->issuepend_done
== 0)
1712 return SCSI_MLQUEUE_HOST_BUSY
;
1715 /* Check for an mpio path and adjust behavior */
1716 if (atomic_read(&instance
->adprecovery
) == MEGASAS_ADPRESET_SM_INFAULT
) {
1717 if (megasas_check_mpio_paths(instance
, scmd
) ==
1718 (DID_REQUEUE
<< 16)) {
1719 return SCSI_MLQUEUE_HOST_BUSY
;
1721 scmd
->result
= DID_NO_CONNECT
<< 16;
1722 scmd
->scsi_done(scmd
);
1727 if (atomic_read(&instance
->adprecovery
) == MEGASAS_HW_CRITICAL_ERROR
) {
1728 scmd
->result
= DID_NO_CONNECT
<< 16;
1729 scmd
->scsi_done(scmd
);
1733 mr_device_priv_data
= scmd
->device
->hostdata
;
1734 if (!mr_device_priv_data
) {
1735 scmd
->result
= DID_NO_CONNECT
<< 16;
1736 scmd
->scsi_done(scmd
);
1740 if (atomic_read(&instance
->adprecovery
) != MEGASAS_HBA_OPERATIONAL
)
1741 return SCSI_MLQUEUE_HOST_BUSY
;
1743 if (mr_device_priv_data
->tm_busy
)
1744 return SCSI_MLQUEUE_DEVICE_BUSY
;
1749 if (MEGASAS_IS_LOGICAL(scmd
->device
) &&
1750 (scmd
->device
->id
>= instance
->fw_supported_vd_count
||
1751 scmd
->device
->lun
)) {
1752 scmd
->result
= DID_BAD_TARGET
<< 16;
1756 if ((scmd
->cmnd
[0] == SYNCHRONIZE_CACHE
) &&
1757 MEGASAS_IS_LOGICAL(scmd
->device
) &&
1758 (!instance
->fw_sync_cache_support
)) {
1759 scmd
->result
= DID_OK
<< 16;
1763 return instance
->instancet
->build_and_issue_cmd(instance
, scmd
);
1766 scmd
->scsi_done(scmd
);
1770 static struct megasas_instance
*megasas_lookup_instance(u16 host_no
)
1774 for (i
= 0; i
< megasas_mgmt_info
.max_index
; i
++) {
1776 if ((megasas_mgmt_info
.instance
[i
]) &&
1777 (megasas_mgmt_info
.instance
[i
]->host
->host_no
== host_no
))
1778 return megasas_mgmt_info
.instance
[i
];
1785 * megasas_set_dynamic_target_properties -
1786 * Device property set by driver may not be static and it is required to be
1790 * set dma alignment (only for eedp protection enable vd).
1792 * @sdev: OS provided scsi device
1796 void megasas_set_dynamic_target_properties(struct scsi_device
*sdev
,
1797 bool is_target_prop
)
1799 u16 pd_index
= 0, ld
;
1801 struct megasas_instance
*instance
;
1802 struct fusion_context
*fusion
;
1803 struct MR_PRIV_DEVICE
*mr_device_priv_data
;
1804 struct MR_PD_CFG_SEQ_NUM_SYNC
*pd_sync
;
1805 struct MR_LD_RAID
*raid
;
1806 struct MR_DRV_RAID_MAP_ALL
*local_map_ptr
;
1808 instance
= megasas_lookup_instance(sdev
->host
->host_no
);
1809 fusion
= instance
->ctrl_context
;
1810 mr_device_priv_data
= sdev
->hostdata
;
1812 if (!fusion
|| !mr_device_priv_data
)
1815 if (MEGASAS_IS_LOGICAL(sdev
)) {
1816 device_id
= ((sdev
->channel
% 2) * MEGASAS_MAX_DEV_PER_CHANNEL
)
1818 local_map_ptr
= fusion
->ld_drv_map
[(instance
->map_id
& 1)];
1819 ld
= MR_TargetIdToLdGet(device_id
, local_map_ptr
);
1820 if (ld
>= instance
->fw_supported_vd_count
)
1822 raid
= MR_LdRaidGet(ld
, local_map_ptr
);
1824 if (raid
->capability
.ldPiMode
== MR_PROT_INFO_TYPE_CONTROLLER
)
1825 blk_queue_update_dma_alignment(sdev
->request_queue
, 0x7);
1827 mr_device_priv_data
->is_tm_capable
=
1828 raid
->capability
.tmCapable
;
1829 } else if (instance
->use_seqnum_jbod_fp
) {
1830 pd_index
= (sdev
->channel
* MEGASAS_MAX_DEV_PER_CHANNEL
) +
1832 pd_sync
= (void *)fusion
->pd_seq_sync
1833 [(instance
->pd_seq_map_id
- 1) & 1];
1834 mr_device_priv_data
->is_tm_capable
=
1835 pd_sync
->seq
[pd_index
].capability
.tmCapable
;
1838 if (is_target_prop
&& instance
->tgt_prop
->reset_tmo
) {
1840 * If FW provides a target reset timeout value, driver will use
1841 * it. If not set, fallback to default values.
1843 mr_device_priv_data
->target_reset_tmo
=
1844 min_t(u8
, instance
->max_reset_tmo
,
1845 instance
->tgt_prop
->reset_tmo
);
1846 mr_device_priv_data
->task_abort_tmo
= instance
->task_abort_tmo
;
1848 mr_device_priv_data
->target_reset_tmo
=
1849 MEGASAS_DEFAULT_TM_TIMEOUT
;
1850 mr_device_priv_data
->task_abort_tmo
=
1851 MEGASAS_DEFAULT_TM_TIMEOUT
;
1856 * megasas_set_nvme_device_properties -
1858 * set virtual page boundary = 4K (current mr_nvme_pg_size is 4K).
1859 * set maximum io transfer = MDTS of NVME device provided by MR firmware.
1861 * MR firmware provides value in KB. Caller of this function converts
1864 * e.a MDTS=5 means 2^5 * nvme page size. (In case of 4K page size,
1865 * MR firmware provides value 128 as (32 * 4K) = 128K.
1867 * @sdev: scsi device
1868 * @max_io_size: maximum io transfer size
1872 megasas_set_nvme_device_properties(struct scsi_device
*sdev
, u32 max_io_size
)
1874 struct megasas_instance
*instance
;
1875 u32 mr_nvme_pg_size
;
1877 instance
= (struct megasas_instance
*)sdev
->host
->hostdata
;
1878 mr_nvme_pg_size
= max_t(u32
, instance
->nvme_page_size
,
1879 MR_DEFAULT_NVME_PAGE_SIZE
);
1881 blk_queue_max_hw_sectors(sdev
->request_queue
, (max_io_size
/ 512));
1883 blk_queue_flag_set(QUEUE_FLAG_NOMERGES
, sdev
->request_queue
);
1884 blk_queue_virt_boundary(sdev
->request_queue
, mr_nvme_pg_size
- 1);
1889 * megasas_set_static_target_properties -
1890 * Device property set by driver are static and it is not required to be
1891 * updated after OCR.
1894 * set device queue depth
1895 * set nvme device properties. see - megasas_set_nvme_device_properties
1897 * @sdev: scsi device
1898 * @is_target_prop true, if fw provided target properties.
1900 static void megasas_set_static_target_properties(struct scsi_device
*sdev
,
1901 bool is_target_prop
)
1903 u16 target_index
= 0;
1905 u32 device_qd
= MEGASAS_DEFAULT_CMD_PER_LUN
;
1906 u32 max_io_size_kb
= MR_DEFAULT_NVME_MDTS_KB
;
1908 struct megasas_instance
*instance
;
1909 struct MR_PRIV_DEVICE
*mr_device_priv_data
;
1911 instance
= megasas_lookup_instance(sdev
->host
->host_no
);
1912 mr_device_priv_data
= sdev
->hostdata
;
1913 interface_type
= mr_device_priv_data
->interface_type
;
1916 * The RAID firmware may require extended timeouts.
1918 blk_queue_rq_timeout(sdev
->request_queue
, scmd_timeout
* HZ
);
1920 target_index
= (sdev
->channel
* MEGASAS_MAX_DEV_PER_CHANNEL
) + sdev
->id
;
1922 switch (interface_type
) {
1924 device_qd
= MEGASAS_SAS_QD
;
1927 device_qd
= MEGASAS_SATA_QD
;
1930 device_qd
= MEGASAS_NVME_QD
;
1934 if (is_target_prop
) {
1935 tgt_device_qd
= le32_to_cpu(instance
->tgt_prop
->device_qdepth
);
1936 if (tgt_device_qd
&&
1937 (tgt_device_qd
<= instance
->host
->can_queue
))
1938 device_qd
= tgt_device_qd
;
1940 /* max_io_size_kb will be set to non zero for
1941 * nvme based vd and syspd.
1943 max_io_size_kb
= le32_to_cpu(instance
->tgt_prop
->max_io_size_kb
);
1946 if (instance
->nvme_page_size
&& max_io_size_kb
)
1947 megasas_set_nvme_device_properties(sdev
, (max_io_size_kb
<< 10));
1949 scsi_change_queue_depth(sdev
, device_qd
);
1954 static int megasas_slave_configure(struct scsi_device
*sdev
)
1957 struct megasas_instance
*instance
;
1958 int ret_target_prop
= DCMD_FAILED
;
1959 bool is_target_prop
= false;
1961 instance
= megasas_lookup_instance(sdev
->host
->host_no
);
1962 if (instance
->pd_list_not_supported
) {
1963 if (!MEGASAS_IS_LOGICAL(sdev
) && sdev
->type
== TYPE_DISK
) {
1964 pd_index
= (sdev
->channel
* MEGASAS_MAX_DEV_PER_CHANNEL
) +
1966 if (instance
->pd_list
[pd_index
].driveState
!=
1972 mutex_lock(&instance
->reset_mutex
);
1973 /* Send DCMD to Firmware and cache the information */
1974 if ((instance
->pd_info
) && !MEGASAS_IS_LOGICAL(sdev
))
1975 megasas_get_pd_info(instance
, sdev
);
1977 /* Some ventura firmware may not have instance->nvme_page_size set.
1978 * Do not send MR_DCMD_DRV_GET_TARGET_PROP
1980 if ((instance
->tgt_prop
) && (instance
->nvme_page_size
))
1981 ret_target_prop
= megasas_get_target_prop(instance
, sdev
);
1983 is_target_prop
= (ret_target_prop
== DCMD_SUCCESS
) ? true : false;
1984 megasas_set_static_target_properties(sdev
, is_target_prop
);
1986 /* This sdev property may change post OCR */
1987 megasas_set_dynamic_target_properties(sdev
, is_target_prop
);
1989 mutex_unlock(&instance
->reset_mutex
);
1994 static int megasas_slave_alloc(struct scsi_device
*sdev
)
1997 struct megasas_instance
*instance
;
1998 struct MR_PRIV_DEVICE
*mr_device_priv_data
;
2000 instance
= megasas_lookup_instance(sdev
->host
->host_no
);
2001 if (!MEGASAS_IS_LOGICAL(sdev
)) {
2003 * Open the OS scan to the SYSTEM PD
2006 (sdev
->channel
* MEGASAS_MAX_DEV_PER_CHANNEL
) +
2008 if ((instance
->pd_list_not_supported
||
2009 instance
->pd_list
[pd_index
].driveState
==
2010 MR_PD_STATE_SYSTEM
)) {
2017 mr_device_priv_data
= kzalloc(sizeof(*mr_device_priv_data
),
2019 if (!mr_device_priv_data
)
2021 sdev
->hostdata
= mr_device_priv_data
;
2023 atomic_set(&mr_device_priv_data
->r1_ldio_hint
,
2024 instance
->r1_ldio_hint_default
);
2028 static void megasas_slave_destroy(struct scsi_device
*sdev
)
2030 kfree(sdev
->hostdata
);
2031 sdev
->hostdata
= NULL
;
2035 * megasas_complete_outstanding_ioctls - Complete outstanding ioctls after a
2037 * @instance: Adapter soft state
2040 static void megasas_complete_outstanding_ioctls(struct megasas_instance
*instance
)
2043 struct megasas_cmd
*cmd_mfi
;
2044 struct megasas_cmd_fusion
*cmd_fusion
;
2045 struct fusion_context
*fusion
= instance
->ctrl_context
;
2047 /* Find all outstanding ioctls */
2049 for (i
= 0; i
< instance
->max_fw_cmds
; i
++) {
2050 cmd_fusion
= fusion
->cmd_list
[i
];
2051 if (cmd_fusion
->sync_cmd_idx
!= (u32
)ULONG_MAX
) {
2052 cmd_mfi
= instance
->cmd_list
[cmd_fusion
->sync_cmd_idx
];
2053 if (cmd_mfi
->sync_cmd
&&
2054 (cmd_mfi
->frame
->hdr
.cmd
!= MFI_CMD_ABORT
)) {
2055 cmd_mfi
->frame
->hdr
.cmd_status
=
2056 MFI_STAT_WRONG_STATE
;
2057 megasas_complete_cmd(instance
,
2063 for (i
= 0; i
< instance
->max_fw_cmds
; i
++) {
2064 cmd_mfi
= instance
->cmd_list
[i
];
2065 if (cmd_mfi
->sync_cmd
&& cmd_mfi
->frame
->hdr
.cmd
!=
2067 megasas_complete_cmd(instance
, cmd_mfi
, DID_OK
);
2073 void megaraid_sas_kill_hba(struct megasas_instance
*instance
)
2075 /* Set critical error to block I/O & ioctls in case caller didn't */
2076 atomic_set(&instance
->adprecovery
, MEGASAS_HW_CRITICAL_ERROR
);
2077 /* Wait 1 second to ensure IO or ioctls in build have posted */
2079 if ((instance
->pdev
->device
== PCI_DEVICE_ID_LSI_SAS0073SKINNY
) ||
2080 (instance
->pdev
->device
== PCI_DEVICE_ID_LSI_SAS0071SKINNY
) ||
2081 (instance
->adapter_type
!= MFI_SERIES
)) {
2082 writel(MFI_STOP_ADP
, &instance
->reg_set
->doorbell
);
2084 readl(&instance
->reg_set
->doorbell
);
2085 if (instance
->requestorId
&& instance
->peerIsPresent
)
2086 memset(instance
->ld_ids
, 0xff, MEGASAS_MAX_LD_IDS
);
2088 writel(MFI_STOP_ADP
,
2089 &instance
->reg_set
->inbound_doorbell
);
2091 /* Complete outstanding ioctls when adapter is killed */
2092 megasas_complete_outstanding_ioctls(instance
);
2096 * megasas_check_and_restore_queue_depth - Check if queue depth needs to be
2097 * restored to max value
2098 * @instance: Adapter soft state
2102 megasas_check_and_restore_queue_depth(struct megasas_instance
*instance
)
2104 unsigned long flags
;
2106 if (instance
->flag
& MEGASAS_FW_BUSY
2107 && time_after(jiffies
, instance
->last_time
+ 5 * HZ
)
2108 && atomic_read(&instance
->fw_outstanding
) <
2109 instance
->throttlequeuedepth
+ 1) {
2111 spin_lock_irqsave(instance
->host
->host_lock
, flags
);
2112 instance
->flag
&= ~MEGASAS_FW_BUSY
;
2114 instance
->host
->can_queue
= instance
->cur_can_queue
;
2115 spin_unlock_irqrestore(instance
->host
->host_lock
, flags
);
2120 * megasas_complete_cmd_dpc - Returns FW's controller structure
2121 * @instance_addr: Address of adapter soft state
2123 * Tasklet to complete cmds
2125 static void megasas_complete_cmd_dpc(unsigned long instance_addr
)
2130 struct megasas_cmd
*cmd
;
2131 struct megasas_instance
*instance
=
2132 (struct megasas_instance
*)instance_addr
;
2133 unsigned long flags
;
2135 /* If we have already declared adapter dead, donot complete cmds */
2136 if (atomic_read(&instance
->adprecovery
) == MEGASAS_HW_CRITICAL_ERROR
)
2139 spin_lock_irqsave(&instance
->completion_lock
, flags
);
2141 producer
= le32_to_cpu(*instance
->producer
);
2142 consumer
= le32_to_cpu(*instance
->consumer
);
2144 while (consumer
!= producer
) {
2145 context
= le32_to_cpu(instance
->reply_queue
[consumer
]);
2146 if (context
>= instance
->max_fw_cmds
) {
2147 dev_err(&instance
->pdev
->dev
, "Unexpected context value %x\n",
2152 cmd
= instance
->cmd_list
[context
];
2154 megasas_complete_cmd(instance
, cmd
, DID_OK
);
2157 if (consumer
== (instance
->max_fw_cmds
+ 1)) {
2162 *instance
->consumer
= cpu_to_le32(producer
);
2164 spin_unlock_irqrestore(&instance
->completion_lock
, flags
);
2167 * Check if we can restore can_queue
2169 megasas_check_and_restore_queue_depth(instance
);
2172 static void megasas_sriov_heartbeat_handler(struct timer_list
*t
);
2175 * megasas_start_timer - Initializes sriov heartbeat timer object
2176 * @instance: Adapter soft state
2179 void megasas_start_timer(struct megasas_instance
*instance
)
2181 struct timer_list
*timer
= &instance
->sriov_heartbeat_timer
;
2183 timer_setup(timer
, megasas_sriov_heartbeat_handler
, 0);
2184 timer
->expires
= jiffies
+ MEGASAS_SRIOV_HEARTBEAT_INTERVAL_VF
;
2189 megasas_internal_reset_defer_cmds(struct megasas_instance
*instance
);
2192 process_fw_state_change_wq(struct work_struct
*work
);
2194 void megasas_do_ocr(struct megasas_instance
*instance
)
2196 if ((instance
->pdev
->device
== PCI_DEVICE_ID_LSI_SAS1064R
) ||
2197 (instance
->pdev
->device
== PCI_DEVICE_ID_DELL_PERC5
) ||
2198 (instance
->pdev
->device
== PCI_DEVICE_ID_LSI_VERDE_ZCR
)) {
2199 *instance
->consumer
= cpu_to_le32(MEGASAS_ADPRESET_INPROG_SIGN
);
2201 instance
->instancet
->disable_intr(instance
);
2202 atomic_set(&instance
->adprecovery
, MEGASAS_ADPRESET_SM_INFAULT
);
2203 instance
->issuepend_done
= 0;
2205 atomic_set(&instance
->fw_outstanding
, 0);
2206 megasas_internal_reset_defer_cmds(instance
);
2207 process_fw_state_change_wq(&instance
->work_init
);
2210 static int megasas_get_ld_vf_affiliation_111(struct megasas_instance
*instance
,
2213 struct megasas_cmd
*cmd
;
2214 struct megasas_dcmd_frame
*dcmd
;
2215 struct MR_LD_VF_AFFILIATION_111
*new_affiliation_111
= NULL
;
2216 dma_addr_t new_affiliation_111_h
;
2220 cmd
= megasas_get_cmd(instance
);
2223 dev_printk(KERN_DEBUG
, &instance
->pdev
->dev
, "megasas_get_ld_vf_affiliation_111:"
2224 "Failed to get cmd for scsi%d\n",
2225 instance
->host
->host_no
);
2229 dcmd
= &cmd
->frame
->dcmd
;
2231 if (!instance
->vf_affiliation_111
) {
2232 dev_warn(&instance
->pdev
->dev
, "SR-IOV: Couldn't get LD/VF "
2233 "affiliation for scsi%d\n", instance
->host
->host_no
);
2234 megasas_return_cmd(instance
, cmd
);
2239 memset(instance
->vf_affiliation_111
, 0,
2240 sizeof(struct MR_LD_VF_AFFILIATION_111
));
2242 new_affiliation_111
=
2243 dma_zalloc_coherent(&instance
->pdev
->dev
,
2244 sizeof(struct MR_LD_VF_AFFILIATION_111
),
2245 &new_affiliation_111_h
, GFP_KERNEL
);
2246 if (!new_affiliation_111
) {
2247 dev_printk(KERN_DEBUG
, &instance
->pdev
->dev
, "SR-IOV: Couldn't allocate "
2248 "memory for new affiliation for scsi%d\n",
2249 instance
->host
->host_no
);
2250 megasas_return_cmd(instance
, cmd
);
2255 memset(dcmd
->mbox
.b
, 0, MFI_MBOX_SIZE
);
2257 dcmd
->cmd
= MFI_CMD_DCMD
;
2258 dcmd
->cmd_status
= MFI_STAT_INVALID_STATUS
;
2259 dcmd
->sge_count
= 1;
2260 dcmd
->flags
= cpu_to_le16(MFI_FRAME_DIR_BOTH
);
2263 dcmd
->data_xfer_len
=
2264 cpu_to_le32(sizeof(struct MR_LD_VF_AFFILIATION_111
));
2265 dcmd
->opcode
= cpu_to_le32(MR_DCMD_LD_VF_MAP_GET_ALL_LDS_111
);
2268 dcmd
->sgl
.sge32
[0].phys_addr
=
2269 cpu_to_le32(instance
->vf_affiliation_111_h
);
2271 dcmd
->sgl
.sge32
[0].phys_addr
=
2272 cpu_to_le32(new_affiliation_111_h
);
2274 dcmd
->sgl
.sge32
[0].length
= cpu_to_le32(
2275 sizeof(struct MR_LD_VF_AFFILIATION_111
));
2277 dev_warn(&instance
->pdev
->dev
, "SR-IOV: Getting LD/VF affiliation for "
2278 "scsi%d\n", instance
->host
->host_no
);
2280 if (megasas_issue_blocked_cmd(instance
, cmd
, 0) != DCMD_SUCCESS
) {
2281 dev_warn(&instance
->pdev
->dev
, "SR-IOV: LD/VF affiliation DCMD"
2282 " failed with status 0x%x for scsi%d\n",
2283 dcmd
->cmd_status
, instance
->host
->host_no
);
2284 retval
= 1; /* Do a scan if we couldn't get affiliation */
2289 thisVf
= new_affiliation_111
->thisVf
;
2290 for (ld
= 0 ; ld
< new_affiliation_111
->vdCount
; ld
++)
2291 if (instance
->vf_affiliation_111
->map
[ld
].policy
[thisVf
] !=
2292 new_affiliation_111
->map
[ld
].policy
[thisVf
]) {
2293 dev_warn(&instance
->pdev
->dev
, "SR-IOV: "
2294 "Got new LD/VF affiliation for scsi%d\n",
2295 instance
->host
->host_no
);
2296 memcpy(instance
->vf_affiliation_111
,
2297 new_affiliation_111
,
2298 sizeof(struct MR_LD_VF_AFFILIATION_111
));
2304 if (new_affiliation_111
) {
2305 dma_free_coherent(&instance
->pdev
->dev
,
2306 sizeof(struct MR_LD_VF_AFFILIATION_111
),
2307 new_affiliation_111
,
2308 new_affiliation_111_h
);
2311 megasas_return_cmd(instance
, cmd
);
2316 static int megasas_get_ld_vf_affiliation_12(struct megasas_instance
*instance
,
2319 struct megasas_cmd
*cmd
;
2320 struct megasas_dcmd_frame
*dcmd
;
2321 struct MR_LD_VF_AFFILIATION
*new_affiliation
= NULL
;
2322 struct MR_LD_VF_MAP
*newmap
= NULL
, *savedmap
= NULL
;
2323 dma_addr_t new_affiliation_h
;
2324 int i
, j
, retval
= 0, found
= 0, doscan
= 0;
2327 cmd
= megasas_get_cmd(instance
);
2330 dev_printk(KERN_DEBUG
, &instance
->pdev
->dev
, "megasas_get_ld_vf_affiliation12: "
2331 "Failed to get cmd for scsi%d\n",
2332 instance
->host
->host_no
);
2336 dcmd
= &cmd
->frame
->dcmd
;
2338 if (!instance
->vf_affiliation
) {
2339 dev_warn(&instance
->pdev
->dev
, "SR-IOV: Couldn't get LD/VF "
2340 "affiliation for scsi%d\n", instance
->host
->host_no
);
2341 megasas_return_cmd(instance
, cmd
);
2346 memset(instance
->vf_affiliation
, 0, (MAX_LOGICAL_DRIVES
+ 1) *
2347 sizeof(struct MR_LD_VF_AFFILIATION
));
2350 dma_zalloc_coherent(&instance
->pdev
->dev
,
2351 (MAX_LOGICAL_DRIVES
+ 1) *
2352 sizeof(struct MR_LD_VF_AFFILIATION
),
2353 &new_affiliation_h
, GFP_KERNEL
);
2354 if (!new_affiliation
) {
2355 dev_printk(KERN_DEBUG
, &instance
->pdev
->dev
, "SR-IOV: Couldn't allocate "
2356 "memory for new affiliation for scsi%d\n",
2357 instance
->host
->host_no
);
2358 megasas_return_cmd(instance
, cmd
);
2363 memset(dcmd
->mbox
.b
, 0, MFI_MBOX_SIZE
);
2365 dcmd
->cmd
= MFI_CMD_DCMD
;
2366 dcmd
->cmd_status
= MFI_STAT_INVALID_STATUS
;
2367 dcmd
->sge_count
= 1;
2368 dcmd
->flags
= cpu_to_le16(MFI_FRAME_DIR_BOTH
);
2371 dcmd
->data_xfer_len
= cpu_to_le32((MAX_LOGICAL_DRIVES
+ 1) *
2372 sizeof(struct MR_LD_VF_AFFILIATION
));
2373 dcmd
->opcode
= cpu_to_le32(MR_DCMD_LD_VF_MAP_GET_ALL_LDS
);
2376 dcmd
->sgl
.sge32
[0].phys_addr
=
2377 cpu_to_le32(instance
->vf_affiliation_h
);
2379 dcmd
->sgl
.sge32
[0].phys_addr
=
2380 cpu_to_le32(new_affiliation_h
);
2382 dcmd
->sgl
.sge32
[0].length
= cpu_to_le32((MAX_LOGICAL_DRIVES
+ 1) *
2383 sizeof(struct MR_LD_VF_AFFILIATION
));
2385 dev_warn(&instance
->pdev
->dev
, "SR-IOV: Getting LD/VF affiliation for "
2386 "scsi%d\n", instance
->host
->host_no
);
2389 if (megasas_issue_blocked_cmd(instance
, cmd
, 0) != DCMD_SUCCESS
) {
2390 dev_warn(&instance
->pdev
->dev
, "SR-IOV: LD/VF affiliation DCMD"
2391 " failed with status 0x%x for scsi%d\n",
2392 dcmd
->cmd_status
, instance
->host
->host_no
);
2393 retval
= 1; /* Do a scan if we couldn't get affiliation */
2398 if (!new_affiliation
->ldCount
) {
2399 dev_warn(&instance
->pdev
->dev
, "SR-IOV: Got new LD/VF "
2400 "affiliation for passive path for scsi%d\n",
2401 instance
->host
->host_no
);
2405 newmap
= new_affiliation
->map
;
2406 savedmap
= instance
->vf_affiliation
->map
;
2407 thisVf
= new_affiliation
->thisVf
;
2408 for (i
= 0 ; i
< new_affiliation
->ldCount
; i
++) {
2410 for (j
= 0; j
< instance
->vf_affiliation
->ldCount
;
2412 if (newmap
->ref
.targetId
==
2413 savedmap
->ref
.targetId
) {
2415 if (newmap
->policy
[thisVf
] !=
2416 savedmap
->policy
[thisVf
]) {
2421 savedmap
= (struct MR_LD_VF_MAP
*)
2422 ((unsigned char *)savedmap
+
2425 if (!found
&& newmap
->policy
[thisVf
] !=
2426 MR_LD_ACCESS_HIDDEN
) {
2430 newmap
= (struct MR_LD_VF_MAP
*)
2431 ((unsigned char *)newmap
+ newmap
->size
);
2434 newmap
= new_affiliation
->map
;
2435 savedmap
= instance
->vf_affiliation
->map
;
2437 for (i
= 0 ; i
< instance
->vf_affiliation
->ldCount
; i
++) {
2439 for (j
= 0 ; j
< new_affiliation
->ldCount
; j
++) {
2440 if (savedmap
->ref
.targetId
==
2441 newmap
->ref
.targetId
) {
2443 if (savedmap
->policy
[thisVf
] !=
2444 newmap
->policy
[thisVf
]) {
2449 newmap
= (struct MR_LD_VF_MAP
*)
2450 ((unsigned char *)newmap
+
2453 if (!found
&& savedmap
->policy
[thisVf
] !=
2454 MR_LD_ACCESS_HIDDEN
) {
2458 savedmap
= (struct MR_LD_VF_MAP
*)
2459 ((unsigned char *)savedmap
+
2465 dev_warn(&instance
->pdev
->dev
, "SR-IOV: Got new LD/VF "
2466 "affiliation for scsi%d\n", instance
->host
->host_no
);
2467 memcpy(instance
->vf_affiliation
, new_affiliation
,
2468 new_affiliation
->size
);
2472 if (new_affiliation
)
2473 dma_free_coherent(&instance
->pdev
->dev
,
2474 (MAX_LOGICAL_DRIVES
+ 1) *
2475 sizeof(struct MR_LD_VF_AFFILIATION
),
2476 new_affiliation
, new_affiliation_h
);
2477 megasas_return_cmd(instance
, cmd
);
2482 /* This function will get the current SR-IOV LD/VF affiliation */
2483 static int megasas_get_ld_vf_affiliation(struct megasas_instance
*instance
,
2488 if (instance
->PlasmaFW111
)
2489 retval
= megasas_get_ld_vf_affiliation_111(instance
, initial
);
2491 retval
= megasas_get_ld_vf_affiliation_12(instance
, initial
);
2495 /* This function will tell FW to start the SR-IOV heartbeat */
2496 int megasas_sriov_start_heartbeat(struct megasas_instance
*instance
,
2499 struct megasas_cmd
*cmd
;
2500 struct megasas_dcmd_frame
*dcmd
;
2503 cmd
= megasas_get_cmd(instance
);
2506 dev_printk(KERN_DEBUG
, &instance
->pdev
->dev
, "megasas_sriov_start_heartbeat: "
2507 "Failed to get cmd for scsi%d\n",
2508 instance
->host
->host_no
);
2512 dcmd
= &cmd
->frame
->dcmd
;
2515 instance
->hb_host_mem
=
2516 dma_zalloc_coherent(&instance
->pdev
->dev
,
2517 sizeof(struct MR_CTRL_HB_HOST_MEM
),
2518 &instance
->hb_host_mem_h
, GFP_KERNEL
);
2519 if (!instance
->hb_host_mem
) {
2520 dev_printk(KERN_DEBUG
, &instance
->pdev
->dev
, "SR-IOV: Couldn't allocate"
2521 " memory for heartbeat host memory for scsi%d\n",
2522 instance
->host
->host_no
);
2528 memset(dcmd
->mbox
.b
, 0, MFI_MBOX_SIZE
);
2530 dcmd
->mbox
.s
[0] = cpu_to_le16(sizeof(struct MR_CTRL_HB_HOST_MEM
));
2531 dcmd
->cmd
= MFI_CMD_DCMD
;
2532 dcmd
->cmd_status
= MFI_STAT_INVALID_STATUS
;
2533 dcmd
->sge_count
= 1;
2534 dcmd
->flags
= cpu_to_le16(MFI_FRAME_DIR_BOTH
);
2537 dcmd
->data_xfer_len
= cpu_to_le32(sizeof(struct MR_CTRL_HB_HOST_MEM
));
2538 dcmd
->opcode
= cpu_to_le32(MR_DCMD_CTRL_SHARED_HOST_MEM_ALLOC
);
2540 megasas_set_dma_settings(instance
, dcmd
, instance
->hb_host_mem_h
,
2541 sizeof(struct MR_CTRL_HB_HOST_MEM
));
2543 dev_warn(&instance
->pdev
->dev
, "SR-IOV: Starting heartbeat for scsi%d\n",
2544 instance
->host
->host_no
);
2546 if ((instance
->adapter_type
!= MFI_SERIES
) &&
2547 !instance
->mask_interrupts
)
2548 retval
= megasas_issue_blocked_cmd(instance
, cmd
,
2549 MEGASAS_ROUTINE_WAIT_TIME_VF
);
2551 retval
= megasas_issue_polled(instance
, cmd
);
2554 dev_warn(&instance
->pdev
->dev
, "SR-IOV: MR_DCMD_CTRL_SHARED_HOST"
2555 "_MEM_ALLOC DCMD %s for scsi%d\n",
2556 (dcmd
->cmd_status
== MFI_STAT_INVALID_STATUS
) ?
2557 "timed out" : "failed", instance
->host
->host_no
);
2562 megasas_return_cmd(instance
, cmd
);
2567 /* Handler for SR-IOV heartbeat */
2568 static void megasas_sriov_heartbeat_handler(struct timer_list
*t
)
2570 struct megasas_instance
*instance
=
2571 from_timer(instance
, t
, sriov_heartbeat_timer
);
2573 if (instance
->hb_host_mem
->HB
.fwCounter
!=
2574 instance
->hb_host_mem
->HB
.driverCounter
) {
2575 instance
->hb_host_mem
->HB
.driverCounter
=
2576 instance
->hb_host_mem
->HB
.fwCounter
;
2577 mod_timer(&instance
->sriov_heartbeat_timer
,
2578 jiffies
+ MEGASAS_SRIOV_HEARTBEAT_INTERVAL_VF
);
2580 dev_warn(&instance
->pdev
->dev
, "SR-IOV: Heartbeat never "
2581 "completed for scsi%d\n", instance
->host
->host_no
);
2582 schedule_work(&instance
->work_init
);
2587 * megasas_wait_for_outstanding - Wait for all outstanding cmds
2588 * @instance: Adapter soft state
2590 * This function waits for up to MEGASAS_RESET_WAIT_TIME seconds for FW to
2591 * complete all its outstanding commands. Returns error if one or more IOs
2592 * are pending after this time period. It also marks the controller dead.
2594 static int megasas_wait_for_outstanding(struct megasas_instance
*instance
)
2596 int i
, sl
, outstanding
;
2598 u32 wait_time
= MEGASAS_RESET_WAIT_TIME
;
2599 unsigned long flags
;
2600 struct list_head clist_local
;
2601 struct megasas_cmd
*reset_cmd
;
2604 if (atomic_read(&instance
->adprecovery
) == MEGASAS_HW_CRITICAL_ERROR
) {
2605 dev_info(&instance
->pdev
->dev
, "%s:%d HBA is killed.\n",
2606 __func__
, __LINE__
);
2610 if (atomic_read(&instance
->adprecovery
) != MEGASAS_HBA_OPERATIONAL
) {
2612 INIT_LIST_HEAD(&clist_local
);
2613 spin_lock_irqsave(&instance
->hba_lock
, flags
);
2614 list_splice_init(&instance
->internal_reset_pending_q
,
2616 spin_unlock_irqrestore(&instance
->hba_lock
, flags
);
2618 dev_notice(&instance
->pdev
->dev
, "HBA reset wait ...\n");
2619 for (i
= 0; i
< wait_time
; i
++) {
2621 if (atomic_read(&instance
->adprecovery
) == MEGASAS_HBA_OPERATIONAL
)
2625 if (atomic_read(&instance
->adprecovery
) != MEGASAS_HBA_OPERATIONAL
) {
2626 dev_notice(&instance
->pdev
->dev
, "reset: Stopping HBA.\n");
2627 atomic_set(&instance
->adprecovery
, MEGASAS_HW_CRITICAL_ERROR
);
2632 while (!list_empty(&clist_local
)) {
2633 reset_cmd
= list_entry((&clist_local
)->next
,
2634 struct megasas_cmd
, list
);
2635 list_del_init(&reset_cmd
->list
);
2636 if (reset_cmd
->scmd
) {
2637 reset_cmd
->scmd
->result
= DID_REQUEUE
<< 16;
2638 dev_notice(&instance
->pdev
->dev
, "%d:%p reset [%02x]\n",
2639 reset_index
, reset_cmd
,
2640 reset_cmd
->scmd
->cmnd
[0]);
2642 reset_cmd
->scmd
->scsi_done(reset_cmd
->scmd
);
2643 megasas_return_cmd(instance
, reset_cmd
);
2644 } else if (reset_cmd
->sync_cmd
) {
2645 dev_notice(&instance
->pdev
->dev
, "%p synch cmds"
2649 reset_cmd
->cmd_status_drv
= MFI_STAT_INVALID_STATUS
;
2650 instance
->instancet
->fire_cmd(instance
,
2651 reset_cmd
->frame_phys_addr
,
2652 0, instance
->reg_set
);
2654 dev_notice(&instance
->pdev
->dev
, "%p unexpected"
2664 for (i
= 0; i
< resetwaittime
; i
++) {
2665 outstanding
= atomic_read(&instance
->fw_outstanding
);
2670 if (!(i
% MEGASAS_RESET_NOTICE_INTERVAL
)) {
2671 dev_notice(&instance
->pdev
->dev
, "[%2d]waiting for %d "
2672 "commands to complete\n",i
,outstanding
);
2674 * Call cmd completion routine. Cmd to be
2675 * be completed directly without depending on isr.
2677 megasas_complete_cmd_dpc((unsigned long)instance
);
2684 outstanding
= atomic_read(&instance
->fw_outstanding
);
2685 fw_state
= instance
->instancet
->read_fw_status_reg(instance
->reg_set
) & MFI_STATE_MASK
;
2687 if ((!outstanding
&& (fw_state
== MFI_STATE_OPERATIONAL
)))
2688 goto no_outstanding
;
2690 if (instance
->disableOnlineCtrlReset
)
2691 goto kill_hba_and_failed
;
2693 if ((fw_state
== MFI_STATE_FAULT
) || atomic_read(&instance
->fw_outstanding
)) {
2694 dev_info(&instance
->pdev
->dev
,
2695 "%s:%d waiting_for_outstanding: before issue OCR. FW state = 0x%x, oustanding 0x%x\n",
2696 __func__
, __LINE__
, fw_state
, atomic_read(&instance
->fw_outstanding
));
2698 goto kill_hba_and_failed
;
2699 megasas_do_ocr(instance
);
2701 if (atomic_read(&instance
->adprecovery
) == MEGASAS_HW_CRITICAL_ERROR
) {
2702 dev_info(&instance
->pdev
->dev
, "%s:%d OCR failed and HBA is killed.\n",
2703 __func__
, __LINE__
);
2706 dev_info(&instance
->pdev
->dev
, "%s:%d waiting_for_outstanding: after issue OCR.\n",
2707 __func__
, __LINE__
);
2709 for (sl
= 0; sl
< 10; sl
++)
2712 outstanding
= atomic_read(&instance
->fw_outstanding
);
2714 fw_state
= instance
->instancet
->read_fw_status_reg(instance
->reg_set
) & MFI_STATE_MASK
;
2715 if ((!outstanding
&& (fw_state
== MFI_STATE_OPERATIONAL
)))
2716 goto no_outstanding
;
2723 dev_info(&instance
->pdev
->dev
, "%s:%d no more pending commands remain after reset handling.\n",
2724 __func__
, __LINE__
);
2727 kill_hba_and_failed
:
2729 /* Reset not supported, kill adapter */
2730 dev_info(&instance
->pdev
->dev
, "%s:%d killing adapter scsi%d"
2731 " disableOnlineCtrlReset %d fw_outstanding %d \n",
2732 __func__
, __LINE__
, instance
->host
->host_no
, instance
->disableOnlineCtrlReset
,
2733 atomic_read(&instance
->fw_outstanding
));
2734 megasas_dump_pending_frames(instance
);
2735 megaraid_sas_kill_hba(instance
);
2741 * megasas_generic_reset - Generic reset routine
2742 * @scmd: Mid-layer SCSI command
2744 * This routine implements a generic reset handler for device, bus and host
2745 * reset requests. Device, bus and host specific reset handlers can use this
2746 * function after they do their specific tasks.
2748 static int megasas_generic_reset(struct scsi_cmnd
*scmd
)
2751 struct megasas_instance
*instance
;
2753 instance
= (struct megasas_instance
*)scmd
->device
->host
->hostdata
;
2755 scmd_printk(KERN_NOTICE
, scmd
, "megasas: RESET cmd=%x retries=%x\n",
2756 scmd
->cmnd
[0], scmd
->retries
);
2758 if (atomic_read(&instance
->adprecovery
) == MEGASAS_HW_CRITICAL_ERROR
) {
2759 dev_err(&instance
->pdev
->dev
, "cannot recover from previous reset failures\n");
2763 ret_val
= megasas_wait_for_outstanding(instance
);
2764 if (ret_val
== SUCCESS
)
2765 dev_notice(&instance
->pdev
->dev
, "reset successful\n");
2767 dev_err(&instance
->pdev
->dev
, "failed to do reset\n");
2773 * megasas_reset_timer - quiesce the adapter if required
2776 * Sets the FW busy flag and reduces the host->can_queue if the
2777 * cmd has not been completed within the timeout period.
2780 blk_eh_timer_return
megasas_reset_timer(struct scsi_cmnd
*scmd
)
2782 struct megasas_instance
*instance
;
2783 unsigned long flags
;
2785 if (time_after(jiffies
, scmd
->jiffies_at_alloc
+
2786 (scmd_timeout
* 2) * HZ
)) {
2790 instance
= (struct megasas_instance
*)scmd
->device
->host
->hostdata
;
2791 if (!(instance
->flag
& MEGASAS_FW_BUSY
)) {
2792 /* FW is busy, throttle IO */
2793 spin_lock_irqsave(instance
->host
->host_lock
, flags
);
2795 instance
->host
->can_queue
= instance
->throttlequeuedepth
;
2796 instance
->last_time
= jiffies
;
2797 instance
->flag
|= MEGASAS_FW_BUSY
;
2799 spin_unlock_irqrestore(instance
->host
->host_lock
, flags
);
2801 return BLK_EH_RESET_TIMER
;
2805 * megasas_dump_frame - This function will dump MPT/MFI frame
2808 megasas_dump_frame(void *mpi_request
, int sz
)
2811 __le32
*mfp
= (__le32
*)mpi_request
;
2813 printk(KERN_INFO
"IO request frame:\n\t");
2814 for (i
= 0; i
< sz
/ sizeof(__le32
); i
++) {
2815 if (i
&& ((i
% 8) == 0))
2817 printk("%08x ", le32_to_cpu(mfp
[i
]));
2823 * megasas_reset_bus_host - Bus & host reset handler entry point
2825 static int megasas_reset_bus_host(struct scsi_cmnd
*scmd
)
2828 struct megasas_instance
*instance
;
2830 instance
= (struct megasas_instance
*)scmd
->device
->host
->hostdata
;
2832 scmd_printk(KERN_INFO
, scmd
,
2833 "Controller reset is requested due to IO timeout\n"
2834 "SCSI command pointer: (%p)\t SCSI host state: %d\t"
2835 " SCSI host busy: %d\t FW outstanding: %d\n",
2836 scmd
, scmd
->device
->host
->shost_state
,
2837 scsi_host_busy(scmd
->device
->host
),
2838 atomic_read(&instance
->fw_outstanding
));
2841 * First wait for all commands to complete
2843 if (instance
->adapter_type
== MFI_SERIES
) {
2844 ret
= megasas_generic_reset(scmd
);
2846 struct megasas_cmd_fusion
*cmd
;
2847 cmd
= (struct megasas_cmd_fusion
*)scmd
->SCp
.ptr
;
2849 megasas_dump_frame(cmd
->io_request
,
2850 MEGA_MPI2_RAID_DEFAULT_IO_FRAME_SIZE
);
2851 ret
= megasas_reset_fusion(scmd
->device
->host
,
2852 SCSIIO_TIMEOUT_OCR
);
2859 * megasas_task_abort - Issues task abort request to firmware
2860 * (supported only for fusion adapters)
2861 * @scmd: SCSI command pointer
2863 static int megasas_task_abort(struct scsi_cmnd
*scmd
)
2866 struct megasas_instance
*instance
;
2868 instance
= (struct megasas_instance
*)scmd
->device
->host
->hostdata
;
2870 if (instance
->adapter_type
!= MFI_SERIES
)
2871 ret
= megasas_task_abort_fusion(scmd
);
2873 sdev_printk(KERN_NOTICE
, scmd
->device
, "TASK ABORT not supported\n");
2881 * megasas_reset_target: Issues target reset request to firmware
2882 * (supported only for fusion adapters)
2883 * @scmd: SCSI command pointer
2885 static int megasas_reset_target(struct scsi_cmnd
*scmd
)
2888 struct megasas_instance
*instance
;
2890 instance
= (struct megasas_instance
*)scmd
->device
->host
->hostdata
;
2892 if (instance
->adapter_type
!= MFI_SERIES
)
2893 ret
= megasas_reset_target_fusion(scmd
);
2895 sdev_printk(KERN_NOTICE
, scmd
->device
, "TARGET RESET not supported\n");
2903 * megasas_bios_param - Returns disk geometry for a disk
2904 * @sdev: device handle
2905 * @bdev: block device
2906 * @capacity: drive capacity
2907 * @geom: geometry parameters
2910 megasas_bios_param(struct scsi_device
*sdev
, struct block_device
*bdev
,
2911 sector_t capacity
, int geom
[])
2918 /* Default heads (64) & sectors (32) */
2922 tmp
= heads
* sectors
;
2923 cylinders
= capacity
;
2925 sector_div(cylinders
, tmp
);
2928 * Handle extended translation size for logical drives > 1Gb
2931 if (capacity
>= 0x200000) {
2934 tmp
= heads
*sectors
;
2935 cylinders
= capacity
;
2936 sector_div(cylinders
, tmp
);
2941 geom
[2] = cylinders
;
2946 static void megasas_aen_polling(struct work_struct
*work
);
2949 * megasas_service_aen - Processes an event notification
2950 * @instance: Adapter soft state
2951 * @cmd: AEN command completed by the ISR
2953 * For AEN, driver sends a command down to FW that is held by the FW till an
2954 * event occurs. When an event of interest occurs, FW completes the command
2955 * that it was previously holding.
2957 * This routines sends SIGIO signal to processes that have registered with the
2961 megasas_service_aen(struct megasas_instance
*instance
, struct megasas_cmd
*cmd
)
2963 unsigned long flags
;
2966 * Don't signal app if it is just an aborted previously registered aen
2968 if ((!cmd
->abort_aen
) && (instance
->unload
== 0)) {
2969 spin_lock_irqsave(&poll_aen_lock
, flags
);
2970 megasas_poll_wait_aen
= 1;
2971 spin_unlock_irqrestore(&poll_aen_lock
, flags
);
2972 wake_up(&megasas_poll_wait
);
2973 kill_fasync(&megasas_async_queue
, SIGIO
, POLL_IN
);
2978 instance
->aen_cmd
= NULL
;
2980 megasas_return_cmd(instance
, cmd
);
2982 if ((instance
->unload
== 0) &&
2983 ((instance
->issuepend_done
== 1))) {
2984 struct megasas_aen_event
*ev
;
2986 ev
= kzalloc(sizeof(*ev
), GFP_ATOMIC
);
2988 dev_err(&instance
->pdev
->dev
, "megasas_service_aen: out of memory\n");
2990 ev
->instance
= instance
;
2992 INIT_DELAYED_WORK(&ev
->hotplug_work
,
2993 megasas_aen_polling
);
2994 schedule_delayed_work(&ev
->hotplug_work
, 0);
3000 megasas_fw_crash_buffer_store(struct device
*cdev
,
3001 struct device_attribute
*attr
, const char *buf
, size_t count
)
3003 struct Scsi_Host
*shost
= class_to_shost(cdev
);
3004 struct megasas_instance
*instance
=
3005 (struct megasas_instance
*) shost
->hostdata
;
3007 unsigned long flags
;
3009 if (kstrtoint(buf
, 0, &val
) != 0)
3012 spin_lock_irqsave(&instance
->crashdump_lock
, flags
);
3013 instance
->fw_crash_buffer_offset
= val
;
3014 spin_unlock_irqrestore(&instance
->crashdump_lock
, flags
);
3019 megasas_fw_crash_buffer_show(struct device
*cdev
,
3020 struct device_attribute
*attr
, char *buf
)
3022 struct Scsi_Host
*shost
= class_to_shost(cdev
);
3023 struct megasas_instance
*instance
=
3024 (struct megasas_instance
*) shost
->hostdata
;
3026 unsigned long buff_addr
;
3027 unsigned long dmachunk
= CRASH_DMA_BUF_SIZE
;
3028 unsigned long src_addr
;
3029 unsigned long flags
;
3032 spin_lock_irqsave(&instance
->crashdump_lock
, flags
);
3033 buff_offset
= instance
->fw_crash_buffer_offset
;
3034 if (!instance
->crash_dump_buf
&&
3035 !((instance
->fw_crash_state
== AVAILABLE
) ||
3036 (instance
->fw_crash_state
== COPYING
))) {
3037 dev_err(&instance
->pdev
->dev
,
3038 "Firmware crash dump is not available\n");
3039 spin_unlock_irqrestore(&instance
->crashdump_lock
, flags
);
3043 buff_addr
= (unsigned long) buf
;
3045 if (buff_offset
> (instance
->fw_crash_buffer_size
* dmachunk
)) {
3046 dev_err(&instance
->pdev
->dev
,
3047 "Firmware crash dump offset is out of range\n");
3048 spin_unlock_irqrestore(&instance
->crashdump_lock
, flags
);
3052 size
= (instance
->fw_crash_buffer_size
* dmachunk
) - buff_offset
;
3053 size
= (size
>= PAGE_SIZE
) ? (PAGE_SIZE
- 1) : size
;
3055 src_addr
= (unsigned long)instance
->crash_buf
[buff_offset
/ dmachunk
] +
3056 (buff_offset
% dmachunk
);
3057 memcpy(buf
, (void *)src_addr
, size
);
3058 spin_unlock_irqrestore(&instance
->crashdump_lock
, flags
);
3064 megasas_fw_crash_buffer_size_show(struct device
*cdev
,
3065 struct device_attribute
*attr
, char *buf
)
3067 struct Scsi_Host
*shost
= class_to_shost(cdev
);
3068 struct megasas_instance
*instance
=
3069 (struct megasas_instance
*) shost
->hostdata
;
3071 return snprintf(buf
, PAGE_SIZE
, "%ld\n", (unsigned long)
3072 ((instance
->fw_crash_buffer_size
) * 1024 * 1024)/PAGE_SIZE
);
3076 megasas_fw_crash_state_store(struct device
*cdev
,
3077 struct device_attribute
*attr
, const char *buf
, size_t count
)
3079 struct Scsi_Host
*shost
= class_to_shost(cdev
);
3080 struct megasas_instance
*instance
=
3081 (struct megasas_instance
*) shost
->hostdata
;
3083 unsigned long flags
;
3085 if (kstrtoint(buf
, 0, &val
) != 0)
3088 if ((val
<= AVAILABLE
|| val
> COPY_ERROR
)) {
3089 dev_err(&instance
->pdev
->dev
, "application updates invalid "
3090 "firmware crash state\n");
3094 instance
->fw_crash_state
= val
;
3096 if ((val
== COPIED
) || (val
== COPY_ERROR
)) {
3097 spin_lock_irqsave(&instance
->crashdump_lock
, flags
);
3098 megasas_free_host_crash_buffer(instance
);
3099 spin_unlock_irqrestore(&instance
->crashdump_lock
, flags
);
3100 if (val
== COPY_ERROR
)
3101 dev_info(&instance
->pdev
->dev
, "application failed to "
3102 "copy Firmware crash dump\n");
3104 dev_info(&instance
->pdev
->dev
, "Firmware crash dump "
3105 "copied successfully\n");
3111 megasas_fw_crash_state_show(struct device
*cdev
,
3112 struct device_attribute
*attr
, char *buf
)
3114 struct Scsi_Host
*shost
= class_to_shost(cdev
);
3115 struct megasas_instance
*instance
=
3116 (struct megasas_instance
*) shost
->hostdata
;
3118 return snprintf(buf
, PAGE_SIZE
, "%d\n", instance
->fw_crash_state
);
3122 megasas_page_size_show(struct device
*cdev
,
3123 struct device_attribute
*attr
, char *buf
)
3125 return snprintf(buf
, PAGE_SIZE
, "%ld\n", (unsigned long)PAGE_SIZE
- 1);
3129 megasas_ldio_outstanding_show(struct device
*cdev
, struct device_attribute
*attr
,
3132 struct Scsi_Host
*shost
= class_to_shost(cdev
);
3133 struct megasas_instance
*instance
= (struct megasas_instance
*)shost
->hostdata
;
3135 return snprintf(buf
, PAGE_SIZE
, "%d\n", atomic_read(&instance
->ldio_outstanding
));
3139 megasas_fw_cmds_outstanding_show(struct device
*cdev
,
3140 struct device_attribute
*attr
, char *buf
)
3142 struct Scsi_Host
*shost
= class_to_shost(cdev
);
3143 struct megasas_instance
*instance
= (struct megasas_instance
*)shost
->hostdata
;
3145 return snprintf(buf
, PAGE_SIZE
, "%d\n", atomic_read(&instance
->fw_outstanding
));
3148 static DEVICE_ATTR(fw_crash_buffer
, S_IRUGO
| S_IWUSR
,
3149 megasas_fw_crash_buffer_show
, megasas_fw_crash_buffer_store
);
3150 static DEVICE_ATTR(fw_crash_buffer_size
, S_IRUGO
,
3151 megasas_fw_crash_buffer_size_show
, NULL
);
3152 static DEVICE_ATTR(fw_crash_state
, S_IRUGO
| S_IWUSR
,
3153 megasas_fw_crash_state_show
, megasas_fw_crash_state_store
);
3154 static DEVICE_ATTR(page_size
, S_IRUGO
,
3155 megasas_page_size_show
, NULL
);
3156 static DEVICE_ATTR(ldio_outstanding
, S_IRUGO
,
3157 megasas_ldio_outstanding_show
, NULL
);
3158 static DEVICE_ATTR(fw_cmds_outstanding
, S_IRUGO
,
3159 megasas_fw_cmds_outstanding_show
, NULL
);
3161 struct device_attribute
*megaraid_host_attrs
[] = {
3162 &dev_attr_fw_crash_buffer_size
,
3163 &dev_attr_fw_crash_buffer
,
3164 &dev_attr_fw_crash_state
,
3165 &dev_attr_page_size
,
3166 &dev_attr_ldio_outstanding
,
3167 &dev_attr_fw_cmds_outstanding
,
3172 * Scsi host template for megaraid_sas driver
3174 static struct scsi_host_template megasas_template
= {
3176 .module
= THIS_MODULE
,
3177 .name
= "Avago SAS based MegaRAID driver",
3178 .proc_name
= "megaraid_sas",
3179 .slave_configure
= megasas_slave_configure
,
3180 .slave_alloc
= megasas_slave_alloc
,
3181 .slave_destroy
= megasas_slave_destroy
,
3182 .queuecommand
= megasas_queue_command
,
3183 .eh_target_reset_handler
= megasas_reset_target
,
3184 .eh_abort_handler
= megasas_task_abort
,
3185 .eh_host_reset_handler
= megasas_reset_bus_host
,
3186 .eh_timed_out
= megasas_reset_timer
,
3187 .shost_attrs
= megaraid_host_attrs
,
3188 .bios_param
= megasas_bios_param
,
3189 .use_clustering
= ENABLE_CLUSTERING
,
3190 .change_queue_depth
= scsi_change_queue_depth
,
3195 * megasas_complete_int_cmd - Completes an internal command
3196 * @instance: Adapter soft state
3197 * @cmd: Command to be completed
3199 * The megasas_issue_blocked_cmd() function waits for a command to complete
3200 * after it issues a command. This function wakes up that waiting routine by
3201 * calling wake_up() on the wait queue.
3204 megasas_complete_int_cmd(struct megasas_instance
*instance
,
3205 struct megasas_cmd
*cmd
)
3207 cmd
->cmd_status_drv
= cmd
->frame
->io
.cmd_status
;
3208 wake_up(&instance
->int_cmd_wait_q
);
3212 * megasas_complete_abort - Completes aborting a command
3213 * @instance: Adapter soft state
3214 * @cmd: Cmd that was issued to abort another cmd
3216 * The megasas_issue_blocked_abort_cmd() function waits on abort_cmd_wait_q
3217 * after it issues an abort on a previously issued command. This function
3218 * wakes up all functions waiting on the same wait queue.
3221 megasas_complete_abort(struct megasas_instance
*instance
,
3222 struct megasas_cmd
*cmd
)
3224 if (cmd
->sync_cmd
) {
3226 cmd
->cmd_status_drv
= 0;
3227 wake_up(&instance
->abort_cmd_wait_q
);
3232 * megasas_complete_cmd - Completes a command
3233 * @instance: Adapter soft state
3234 * @cmd: Command to be completed
3235 * @alt_status: If non-zero, use this value as status to
3236 * SCSI mid-layer instead of the value returned
3237 * by the FW. This should be used if caller wants
3238 * an alternate status (as in the case of aborted
3242 megasas_complete_cmd(struct megasas_instance
*instance
, struct megasas_cmd
*cmd
,
3246 struct megasas_header
*hdr
= &cmd
->frame
->hdr
;
3247 unsigned long flags
;
3248 struct fusion_context
*fusion
= instance
->ctrl_context
;
3251 /* flag for the retry reset */
3252 cmd
->retry_for_fw_reset
= 0;
3255 cmd
->scmd
->SCp
.ptr
= NULL
;
3258 case MFI_CMD_INVALID
:
3259 /* Some older 1068 controller FW may keep a pended
3260 MR_DCMD_CTRL_EVENT_GET_INFO left over from the main kernel
3261 when booting the kdump kernel. Ignore this command to
3262 prevent a kernel panic on shutdown of the kdump kernel. */
3263 dev_warn(&instance
->pdev
->dev
, "MFI_CMD_INVALID command "
3265 dev_warn(&instance
->pdev
->dev
, "If you have a controller "
3266 "other than PERC5, please upgrade your firmware\n");
3268 case MFI_CMD_PD_SCSI_IO
:
3269 case MFI_CMD_LD_SCSI_IO
:
3272 * MFI_CMD_PD_SCSI_IO and MFI_CMD_LD_SCSI_IO could have been
3273 * issued either through an IO path or an IOCTL path. If it
3274 * was via IOCTL, we will send it to internal completion.
3276 if (cmd
->sync_cmd
) {
3278 megasas_complete_int_cmd(instance
, cmd
);
3282 case MFI_CMD_LD_READ
:
3283 case MFI_CMD_LD_WRITE
:
3286 cmd
->scmd
->result
= alt_status
<< 16;
3292 atomic_dec(&instance
->fw_outstanding
);
3294 scsi_dma_unmap(cmd
->scmd
);
3295 cmd
->scmd
->scsi_done(cmd
->scmd
);
3296 megasas_return_cmd(instance
, cmd
);
3301 switch (hdr
->cmd_status
) {
3304 cmd
->scmd
->result
= DID_OK
<< 16;
3307 case MFI_STAT_SCSI_IO_FAILED
:
3308 case MFI_STAT_LD_INIT_IN_PROGRESS
:
3310 (DID_ERROR
<< 16) | hdr
->scsi_status
;
3313 case MFI_STAT_SCSI_DONE_WITH_ERROR
:
3315 cmd
->scmd
->result
= (DID_OK
<< 16) | hdr
->scsi_status
;
3317 if (hdr
->scsi_status
== SAM_STAT_CHECK_CONDITION
) {
3318 memset(cmd
->scmd
->sense_buffer
, 0,
3319 SCSI_SENSE_BUFFERSIZE
);
3320 memcpy(cmd
->scmd
->sense_buffer
, cmd
->sense
,
3323 cmd
->scmd
->result
|= DRIVER_SENSE
<< 24;
3328 case MFI_STAT_LD_OFFLINE
:
3329 case MFI_STAT_DEVICE_NOT_FOUND
:
3330 cmd
->scmd
->result
= DID_BAD_TARGET
<< 16;
3334 dev_printk(KERN_DEBUG
, &instance
->pdev
->dev
, "MFI FW status %#x\n",
3336 cmd
->scmd
->result
= DID_ERROR
<< 16;
3340 atomic_dec(&instance
->fw_outstanding
);
3342 scsi_dma_unmap(cmd
->scmd
);
3343 cmd
->scmd
->scsi_done(cmd
->scmd
);
3344 megasas_return_cmd(instance
, cmd
);
3351 megasas_complete_int_cmd(instance
, cmd
);
3355 opcode
= le32_to_cpu(cmd
->frame
->dcmd
.opcode
);
3356 /* Check for LD map update */
3357 if ((opcode
== MR_DCMD_LD_MAP_GET_INFO
)
3358 && (cmd
->frame
->dcmd
.mbox
.b
[1] == 1)) {
3359 fusion
->fast_path_io
= 0;
3360 spin_lock_irqsave(instance
->host
->host_lock
, flags
);
3361 status
= cmd
->frame
->hdr
.cmd_status
;
3362 instance
->map_update_cmd
= NULL
;
3363 if (status
!= MFI_STAT_OK
) {
3364 if (status
!= MFI_STAT_NOT_FOUND
)
3365 dev_warn(&instance
->pdev
->dev
, "map syncfailed, status = 0x%x\n",
3366 cmd
->frame
->hdr
.cmd_status
);
3368 megasas_return_cmd(instance
, cmd
);
3369 spin_unlock_irqrestore(
3370 instance
->host
->host_lock
,
3376 megasas_return_cmd(instance
, cmd
);
3379 * Set fast path IO to ZERO.
3380 * Validate Map will set proper value.
3381 * Meanwhile all IOs will go as LD IO.
3383 if (status
== MFI_STAT_OK
&&
3384 (MR_ValidateMapInfo(instance
, (instance
->map_id
+ 1)))) {
3386 fusion
->fast_path_io
= 1;
3388 fusion
->fast_path_io
= 0;
3391 megasas_sync_map_info(instance
);
3392 spin_unlock_irqrestore(instance
->host
->host_lock
,
3396 if (opcode
== MR_DCMD_CTRL_EVENT_GET_INFO
||
3397 opcode
== MR_DCMD_CTRL_EVENT_GET
) {
3398 spin_lock_irqsave(&poll_aen_lock
, flags
);
3399 megasas_poll_wait_aen
= 0;
3400 spin_unlock_irqrestore(&poll_aen_lock
, flags
);
3403 /* FW has an updated PD sequence */
3404 if ((opcode
== MR_DCMD_SYSTEM_PD_MAP_GET_INFO
) &&
3405 (cmd
->frame
->dcmd
.mbox
.b
[0] == 1)) {
3407 spin_lock_irqsave(instance
->host
->host_lock
, flags
);
3408 status
= cmd
->frame
->hdr
.cmd_status
;
3409 instance
->jbod_seq_cmd
= NULL
;
3410 megasas_return_cmd(instance
, cmd
);
3412 if (status
== MFI_STAT_OK
) {
3413 instance
->pd_seq_map_id
++;
3414 /* Re-register a pd sync seq num cmd */
3415 if (megasas_sync_pd_seq_num(instance
, true))
3416 instance
->use_seqnum_jbod_fp
= false;
3418 instance
->use_seqnum_jbod_fp
= false;
3420 spin_unlock_irqrestore(instance
->host
->host_lock
, flags
);
3425 * See if got an event notification
3427 if (opcode
== MR_DCMD_CTRL_EVENT_WAIT
)
3428 megasas_service_aen(instance
, cmd
);
3430 megasas_complete_int_cmd(instance
, cmd
);
3436 * Cmd issued to abort another cmd returned
3438 megasas_complete_abort(instance
, cmd
);
3442 dev_info(&instance
->pdev
->dev
, "Unknown command completed! [0x%X]\n",
3444 megasas_complete_int_cmd(instance
, cmd
);
3450 * megasas_issue_pending_cmds_again - issue all pending cmds
3451 * in FW again because of the fw reset
3452 * @instance: Adapter soft state
3455 megasas_issue_pending_cmds_again(struct megasas_instance
*instance
)
3457 struct megasas_cmd
*cmd
;
3458 struct list_head clist_local
;
3459 union megasas_evt_class_locale class_locale
;
3460 unsigned long flags
;
3463 INIT_LIST_HEAD(&clist_local
);
3464 spin_lock_irqsave(&instance
->hba_lock
, flags
);
3465 list_splice_init(&instance
->internal_reset_pending_q
, &clist_local
);
3466 spin_unlock_irqrestore(&instance
->hba_lock
, flags
);
3468 while (!list_empty(&clist_local
)) {
3469 cmd
= list_entry((&clist_local
)->next
,
3470 struct megasas_cmd
, list
);
3471 list_del_init(&cmd
->list
);
3473 if (cmd
->sync_cmd
|| cmd
->scmd
) {
3474 dev_notice(&instance
->pdev
->dev
, "command %p, %p:%d"
3475 "detected to be pending while HBA reset\n",
3476 cmd
, cmd
->scmd
, cmd
->sync_cmd
);
3478 cmd
->retry_for_fw_reset
++;
3480 if (cmd
->retry_for_fw_reset
== 3) {
3481 dev_notice(&instance
->pdev
->dev
, "cmd %p, %p:%d"
3482 "was tried multiple times during reset."
3483 "Shutting down the HBA\n",
3484 cmd
, cmd
->scmd
, cmd
->sync_cmd
);
3485 instance
->instancet
->disable_intr(instance
);
3486 atomic_set(&instance
->fw_reset_no_pci_access
, 1);
3487 megaraid_sas_kill_hba(instance
);
3492 if (cmd
->sync_cmd
== 1) {
3494 dev_notice(&instance
->pdev
->dev
, "unexpected"
3495 "cmd attached to internal command!\n");
3497 dev_notice(&instance
->pdev
->dev
, "%p synchronous cmd"
3498 "on the internal reset queue,"
3499 "issue it again.\n", cmd
);
3500 cmd
->cmd_status_drv
= MFI_STAT_INVALID_STATUS
;
3501 instance
->instancet
->fire_cmd(instance
,
3502 cmd
->frame_phys_addr
,
3503 0, instance
->reg_set
);
3504 } else if (cmd
->scmd
) {
3505 dev_notice(&instance
->pdev
->dev
, "%p scsi cmd [%02x]"
3506 "detected on the internal queue, issue again.\n",
3507 cmd
, cmd
->scmd
->cmnd
[0]);
3509 atomic_inc(&instance
->fw_outstanding
);
3510 instance
->instancet
->fire_cmd(instance
,
3511 cmd
->frame_phys_addr
,
3512 cmd
->frame_count
-1, instance
->reg_set
);
3514 dev_notice(&instance
->pdev
->dev
, "%p unexpected cmd on the"
3515 "internal reset defer list while re-issue!!\n",
3520 if (instance
->aen_cmd
) {
3521 dev_notice(&instance
->pdev
->dev
, "aen_cmd in def process\n");
3522 megasas_return_cmd(instance
, instance
->aen_cmd
);
3524 instance
->aen_cmd
= NULL
;
3528 * Initiate AEN (Asynchronous Event Notification)
3530 seq_num
= instance
->last_seq_num
;
3531 class_locale
.members
.reserved
= 0;
3532 class_locale
.members
.locale
= MR_EVT_LOCALE_ALL
;
3533 class_locale
.members
.class = MR_EVT_CLASS_DEBUG
;
3535 megasas_register_aen(instance
, seq_num
, class_locale
.word
);
3539 * Move the internal reset pending commands to a deferred queue.
3541 * We move the commands pending at internal reset time to a
3542 * pending queue. This queue would be flushed after successful
3543 * completion of the internal reset sequence. if the internal reset
3544 * did not complete in time, the kernel reset handler would flush
3548 megasas_internal_reset_defer_cmds(struct megasas_instance
*instance
)
3550 struct megasas_cmd
*cmd
;
3552 u16 max_cmd
= instance
->max_fw_cmds
;
3554 unsigned long flags
;
3557 spin_lock_irqsave(&instance
->mfi_pool_lock
, flags
);
3558 for (i
= 0; i
< max_cmd
; i
++) {
3559 cmd
= instance
->cmd_list
[i
];
3560 if (cmd
->sync_cmd
== 1 || cmd
->scmd
) {
3561 dev_notice(&instance
->pdev
->dev
, "moving cmd[%d]:%p:%d:%p"
3562 "on the defer queue as internal\n",
3563 defer_index
, cmd
, cmd
->sync_cmd
, cmd
->scmd
);
3565 if (!list_empty(&cmd
->list
)) {
3566 dev_notice(&instance
->pdev
->dev
, "ERROR while"
3567 " moving this cmd:%p, %d %p, it was"
3568 "discovered on some list?\n",
3569 cmd
, cmd
->sync_cmd
, cmd
->scmd
);
3571 list_del_init(&cmd
->list
);
3574 list_add_tail(&cmd
->list
,
3575 &instance
->internal_reset_pending_q
);
3578 spin_unlock_irqrestore(&instance
->mfi_pool_lock
, flags
);
3583 process_fw_state_change_wq(struct work_struct
*work
)
3585 struct megasas_instance
*instance
=
3586 container_of(work
, struct megasas_instance
, work_init
);
3588 unsigned long flags
;
3590 if (atomic_read(&instance
->adprecovery
) != MEGASAS_ADPRESET_SM_INFAULT
) {
3591 dev_notice(&instance
->pdev
->dev
, "error, recovery st %x\n",
3592 atomic_read(&instance
->adprecovery
));
3596 if (atomic_read(&instance
->adprecovery
) == MEGASAS_ADPRESET_SM_INFAULT
) {
3597 dev_notice(&instance
->pdev
->dev
, "FW detected to be in fault"
3598 "state, restarting it...\n");
3600 instance
->instancet
->disable_intr(instance
);
3601 atomic_set(&instance
->fw_outstanding
, 0);
3603 atomic_set(&instance
->fw_reset_no_pci_access
, 1);
3604 instance
->instancet
->adp_reset(instance
, instance
->reg_set
);
3605 atomic_set(&instance
->fw_reset_no_pci_access
, 0);
3607 dev_notice(&instance
->pdev
->dev
, "FW restarted successfully,"
3608 "initiating next stage...\n");
3610 dev_notice(&instance
->pdev
->dev
, "HBA recovery state machine,"
3611 "state 2 starting...\n");
3613 /* waiting for about 20 second before start the second init */
3614 for (wait
= 0; wait
< 30; wait
++) {
3618 if (megasas_transition_to_ready(instance
, 1)) {
3619 dev_notice(&instance
->pdev
->dev
, "adapter not ready\n");
3621 atomic_set(&instance
->fw_reset_no_pci_access
, 1);
3622 megaraid_sas_kill_hba(instance
);
3626 if ((instance
->pdev
->device
== PCI_DEVICE_ID_LSI_SAS1064R
) ||
3627 (instance
->pdev
->device
== PCI_DEVICE_ID_DELL_PERC5
) ||
3628 (instance
->pdev
->device
== PCI_DEVICE_ID_LSI_VERDE_ZCR
)
3630 *instance
->consumer
= *instance
->producer
;
3632 *instance
->consumer
= 0;
3633 *instance
->producer
= 0;
3636 megasas_issue_init_mfi(instance
);
3638 spin_lock_irqsave(&instance
->hba_lock
, flags
);
3639 atomic_set(&instance
->adprecovery
, MEGASAS_HBA_OPERATIONAL
);
3640 spin_unlock_irqrestore(&instance
->hba_lock
, flags
);
3641 instance
->instancet
->enable_intr(instance
);
3643 megasas_issue_pending_cmds_again(instance
);
3644 instance
->issuepend_done
= 1;
3649 * megasas_deplete_reply_queue - Processes all completed commands
3650 * @instance: Adapter soft state
3651 * @alt_status: Alternate status to be returned to
3652 * SCSI mid-layer instead of the status
3653 * returned by the FW
3654 * Note: this must be called with hba lock held
3657 megasas_deplete_reply_queue(struct megasas_instance
*instance
,
3663 if ((mfiStatus
= instance
->instancet
->check_reset(instance
,
3664 instance
->reg_set
)) == 1) {
3668 if ((mfiStatus
= instance
->instancet
->clear_intr(
3671 /* Hardware may not set outbound_intr_status in MSI-X mode */
3672 if (!instance
->msix_vectors
)
3676 instance
->mfiStatus
= mfiStatus
;
3678 if ((mfiStatus
& MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE
)) {
3679 fw_state
= instance
->instancet
->read_fw_status_reg(
3680 instance
->reg_set
) & MFI_STATE_MASK
;
3682 if (fw_state
!= MFI_STATE_FAULT
) {
3683 dev_notice(&instance
->pdev
->dev
, "fw state:%x\n",
3687 if ((fw_state
== MFI_STATE_FAULT
) &&
3688 (instance
->disableOnlineCtrlReset
== 0)) {
3689 dev_notice(&instance
->pdev
->dev
, "wait adp restart\n");
3691 if ((instance
->pdev
->device
==
3692 PCI_DEVICE_ID_LSI_SAS1064R
) ||
3693 (instance
->pdev
->device
==
3694 PCI_DEVICE_ID_DELL_PERC5
) ||
3695 (instance
->pdev
->device
==
3696 PCI_DEVICE_ID_LSI_VERDE_ZCR
)) {
3698 *instance
->consumer
=
3699 cpu_to_le32(MEGASAS_ADPRESET_INPROG_SIGN
);
3703 instance
->instancet
->disable_intr(instance
);
3704 atomic_set(&instance
->adprecovery
, MEGASAS_ADPRESET_SM_INFAULT
);
3705 instance
->issuepend_done
= 0;
3707 atomic_set(&instance
->fw_outstanding
, 0);
3708 megasas_internal_reset_defer_cmds(instance
);
3710 dev_notice(&instance
->pdev
->dev
, "fwState=%x, stage:%d\n",
3711 fw_state
, atomic_read(&instance
->adprecovery
));
3713 schedule_work(&instance
->work_init
);
3717 dev_notice(&instance
->pdev
->dev
, "fwstate:%x, dis_OCR=%x\n",
3718 fw_state
, instance
->disableOnlineCtrlReset
);
3722 tasklet_schedule(&instance
->isr_tasklet
);
3726 * megasas_isr - isr entry point
3728 static irqreturn_t
megasas_isr(int irq
, void *devp
)
3730 struct megasas_irq_context
*irq_context
= devp
;
3731 struct megasas_instance
*instance
= irq_context
->instance
;
3732 unsigned long flags
;
3735 if (atomic_read(&instance
->fw_reset_no_pci_access
))
3738 spin_lock_irqsave(&instance
->hba_lock
, flags
);
3739 rc
= megasas_deplete_reply_queue(instance
, DID_OK
);
3740 spin_unlock_irqrestore(&instance
->hba_lock
, flags
);
3746 * megasas_transition_to_ready - Move the FW to READY state
3747 * @instance: Adapter soft state
3749 * During the initialization, FW passes can potentially be in any one of
3750 * several possible states. If the FW in operational, waiting-for-handshake
3751 * states, driver must take steps to bring it to ready state. Otherwise, it
3752 * has to wait for the ready state.
3755 megasas_transition_to_ready(struct megasas_instance
*instance
, int ocr
)
3761 u32 abs_state
, curr_abs_state
;
3763 abs_state
= instance
->instancet
->read_fw_status_reg(instance
->reg_set
);
3764 fw_state
= abs_state
& MFI_STATE_MASK
;
3766 if (fw_state
!= MFI_STATE_READY
)
3767 dev_info(&instance
->pdev
->dev
, "Waiting for FW to come to ready"
3770 while (fw_state
!= MFI_STATE_READY
) {
3774 case MFI_STATE_FAULT
:
3775 dev_printk(KERN_DEBUG
, &instance
->pdev
->dev
, "FW in FAULT state!!\n");
3777 max_wait
= MEGASAS_RESET_WAIT_TIME
;
3778 cur_state
= MFI_STATE_FAULT
;
3783 case MFI_STATE_WAIT_HANDSHAKE
:
3785 * Set the CLR bit in inbound doorbell
3787 if ((instance
->pdev
->device
==
3788 PCI_DEVICE_ID_LSI_SAS0073SKINNY
) ||
3789 (instance
->pdev
->device
==
3790 PCI_DEVICE_ID_LSI_SAS0071SKINNY
) ||
3791 (instance
->adapter_type
!= MFI_SERIES
))
3793 MFI_INIT_CLEAR_HANDSHAKE
|MFI_INIT_HOTPLUG
,
3794 &instance
->reg_set
->doorbell
);
3797 MFI_INIT_CLEAR_HANDSHAKE
|MFI_INIT_HOTPLUG
,
3798 &instance
->reg_set
->inbound_doorbell
);
3800 max_wait
= MEGASAS_RESET_WAIT_TIME
;
3801 cur_state
= MFI_STATE_WAIT_HANDSHAKE
;
3804 case MFI_STATE_BOOT_MESSAGE_PENDING
:
3805 if ((instance
->pdev
->device
==
3806 PCI_DEVICE_ID_LSI_SAS0073SKINNY
) ||
3807 (instance
->pdev
->device
==
3808 PCI_DEVICE_ID_LSI_SAS0071SKINNY
) ||
3809 (instance
->adapter_type
!= MFI_SERIES
))
3810 writel(MFI_INIT_HOTPLUG
,
3811 &instance
->reg_set
->doorbell
);
3813 writel(MFI_INIT_HOTPLUG
,
3814 &instance
->reg_set
->inbound_doorbell
);
3816 max_wait
= MEGASAS_RESET_WAIT_TIME
;
3817 cur_state
= MFI_STATE_BOOT_MESSAGE_PENDING
;
3820 case MFI_STATE_OPERATIONAL
:
3822 * Bring it to READY state; assuming max wait 10 secs
3824 instance
->instancet
->disable_intr(instance
);
3825 if ((instance
->pdev
->device
==
3826 PCI_DEVICE_ID_LSI_SAS0073SKINNY
) ||
3827 (instance
->pdev
->device
==
3828 PCI_DEVICE_ID_LSI_SAS0071SKINNY
) ||
3829 (instance
->adapter_type
!= MFI_SERIES
)) {
3830 writel(MFI_RESET_FLAGS
,
3831 &instance
->reg_set
->doorbell
);
3833 if (instance
->adapter_type
!= MFI_SERIES
) {
3834 for (i
= 0; i
< (10 * 1000); i
+= 20) {
3845 writel(MFI_RESET_FLAGS
,
3846 &instance
->reg_set
->inbound_doorbell
);
3848 max_wait
= MEGASAS_RESET_WAIT_TIME
;
3849 cur_state
= MFI_STATE_OPERATIONAL
;
3852 case MFI_STATE_UNDEFINED
:
3854 * This state should not last for more than 2 seconds
3856 max_wait
= MEGASAS_RESET_WAIT_TIME
;
3857 cur_state
= MFI_STATE_UNDEFINED
;
3860 case MFI_STATE_BB_INIT
:
3861 max_wait
= MEGASAS_RESET_WAIT_TIME
;
3862 cur_state
= MFI_STATE_BB_INIT
;
3865 case MFI_STATE_FW_INIT
:
3866 max_wait
= MEGASAS_RESET_WAIT_TIME
;
3867 cur_state
= MFI_STATE_FW_INIT
;
3870 case MFI_STATE_FW_INIT_2
:
3871 max_wait
= MEGASAS_RESET_WAIT_TIME
;
3872 cur_state
= MFI_STATE_FW_INIT_2
;
3875 case MFI_STATE_DEVICE_SCAN
:
3876 max_wait
= MEGASAS_RESET_WAIT_TIME
;
3877 cur_state
= MFI_STATE_DEVICE_SCAN
;
3880 case MFI_STATE_FLUSH_CACHE
:
3881 max_wait
= MEGASAS_RESET_WAIT_TIME
;
3882 cur_state
= MFI_STATE_FLUSH_CACHE
;
3886 dev_printk(KERN_DEBUG
, &instance
->pdev
->dev
, "Unknown state 0x%x\n",
3892 * The cur_state should not last for more than max_wait secs
3894 for (i
= 0; i
< (max_wait
* 1000); i
++) {
3895 curr_abs_state
= instance
->instancet
->
3896 read_fw_status_reg(instance
->reg_set
);
3898 if (abs_state
== curr_abs_state
) {
3905 * Return error if fw_state hasn't changed after max_wait
3907 if (curr_abs_state
== abs_state
) {
3908 dev_printk(KERN_DEBUG
, &instance
->pdev
->dev
, "FW state [%d] hasn't changed "
3909 "in %d secs\n", fw_state
, max_wait
);
3913 abs_state
= curr_abs_state
;
3914 fw_state
= curr_abs_state
& MFI_STATE_MASK
;
3916 dev_info(&instance
->pdev
->dev
, "FW now in Ready state\n");
3922 * megasas_teardown_frame_pool - Destroy the cmd frame DMA pool
3923 * @instance: Adapter soft state
3925 static void megasas_teardown_frame_pool(struct megasas_instance
*instance
)
3928 u16 max_cmd
= instance
->max_mfi_cmds
;
3929 struct megasas_cmd
*cmd
;
3931 if (!instance
->frame_dma_pool
)
3935 * Return all frames to pool
3937 for (i
= 0; i
< max_cmd
; i
++) {
3939 cmd
= instance
->cmd_list
[i
];
3942 dma_pool_free(instance
->frame_dma_pool
, cmd
->frame
,
3943 cmd
->frame_phys_addr
);
3946 dma_pool_free(instance
->sense_dma_pool
, cmd
->sense
,
3947 cmd
->sense_phys_addr
);
3951 * Now destroy the pool itself
3953 dma_pool_destroy(instance
->frame_dma_pool
);
3954 dma_pool_destroy(instance
->sense_dma_pool
);
3956 instance
->frame_dma_pool
= NULL
;
3957 instance
->sense_dma_pool
= NULL
;
3961 * megasas_create_frame_pool - Creates DMA pool for cmd frames
3962 * @instance: Adapter soft state
3964 * Each command packet has an embedded DMA memory buffer that is used for
3965 * filling MFI frame and the SG list that immediately follows the frame. This
3966 * function creates those DMA memory buffers for each command packet by using
3967 * PCI pool facility.
3969 static int megasas_create_frame_pool(struct megasas_instance
*instance
)
3975 struct megasas_cmd
*cmd
;
3977 max_cmd
= instance
->max_mfi_cmds
;
3980 * Size of our frame is 64 bytes for MFI frame, followed by max SG
3981 * elements and finally SCSI_SENSE_BUFFERSIZE bytes for sense buffer
3983 sge_sz
= (IS_DMA64
) ? sizeof(struct megasas_sge64
) :
3984 sizeof(struct megasas_sge32
);
3986 if (instance
->flag_ieee
)
3987 sge_sz
= sizeof(struct megasas_sge_skinny
);
3990 * For MFI controllers.
3992 * max_sge_sz = 16 byte (sizeof megasas_sge_skinny)
3993 * Total 960 byte (15 MFI frame of 64 byte)
3995 * Fusion adapter require only 3 extra frame.
3996 * max_num_sge = 16 (defined as MAX_IOCTL_SGE)
3997 * max_sge_sz = 12 byte (sizeof megasas_sge64)
3998 * Total 192 byte (3 MFI frame of 64 byte)
4000 frame_count
= (instance
->adapter_type
== MFI_SERIES
) ?
4002 instance
->mfi_frame_size
= MEGAMFI_FRAME_SIZE
* frame_count
;
4004 * Use DMA pool facility provided by PCI layer
4006 instance
->frame_dma_pool
= dma_pool_create("megasas frame pool",
4007 &instance
->pdev
->dev
,
4008 instance
->mfi_frame_size
, 256, 0);
4010 if (!instance
->frame_dma_pool
) {
4011 dev_printk(KERN_DEBUG
, &instance
->pdev
->dev
, "failed to setup frame pool\n");
4015 instance
->sense_dma_pool
= dma_pool_create("megasas sense pool",
4016 &instance
->pdev
->dev
, 128,
4019 if (!instance
->sense_dma_pool
) {
4020 dev_printk(KERN_DEBUG
, &instance
->pdev
->dev
, "failed to setup sense pool\n");
4022 dma_pool_destroy(instance
->frame_dma_pool
);
4023 instance
->frame_dma_pool
= NULL
;
4029 * Allocate and attach a frame to each of the commands in cmd_list.
4030 * By making cmd->index as the context instead of the &cmd, we can
4031 * always use 32bit context regardless of the architecture
4033 for (i
= 0; i
< max_cmd
; i
++) {
4035 cmd
= instance
->cmd_list
[i
];
4037 cmd
->frame
= dma_pool_zalloc(instance
->frame_dma_pool
,
4038 GFP_KERNEL
, &cmd
->frame_phys_addr
);
4040 cmd
->sense
= dma_pool_alloc(instance
->sense_dma_pool
,
4041 GFP_KERNEL
, &cmd
->sense_phys_addr
);
4044 * megasas_teardown_frame_pool() takes care of freeing
4045 * whatever has been allocated
4047 if (!cmd
->frame
|| !cmd
->sense
) {
4048 dev_printk(KERN_DEBUG
, &instance
->pdev
->dev
, "dma_pool_alloc failed\n");
4049 megasas_teardown_frame_pool(instance
);
4053 cmd
->frame
->io
.context
= cpu_to_le32(cmd
->index
);
4054 cmd
->frame
->io
.pad_0
= 0;
4055 if ((instance
->adapter_type
== MFI_SERIES
) && reset_devices
)
4056 cmd
->frame
->hdr
.cmd
= MFI_CMD_INVALID
;
4063 * megasas_free_cmds - Free all the cmds in the free cmd pool
4064 * @instance: Adapter soft state
4066 void megasas_free_cmds(struct megasas_instance
*instance
)
4070 /* First free the MFI frame pool */
4071 megasas_teardown_frame_pool(instance
);
4073 /* Free all the commands in the cmd_list */
4074 for (i
= 0; i
< instance
->max_mfi_cmds
; i
++)
4076 kfree(instance
->cmd_list
[i
]);
4078 /* Free the cmd_list buffer itself */
4079 kfree(instance
->cmd_list
);
4080 instance
->cmd_list
= NULL
;
4082 INIT_LIST_HEAD(&instance
->cmd_pool
);
4086 * megasas_alloc_cmds - Allocates the command packets
4087 * @instance: Adapter soft state
4089 * Each command that is issued to the FW, whether IO commands from the OS or
4090 * internal commands like IOCTLs, are wrapped in local data structure called
4091 * megasas_cmd. The frame embedded in this megasas_cmd is actually issued to
4094 * Each frame has a 32-bit field called context (tag). This context is used
4095 * to get back the megasas_cmd from the frame when a frame gets completed in
4096 * the ISR. Typically the address of the megasas_cmd itself would be used as
4097 * the context. But we wanted to keep the differences between 32 and 64 bit
4098 * systems to the mininum. We always use 32 bit integers for the context. In
4099 * this driver, the 32 bit values are the indices into an array cmd_list.
4100 * This array is used only to look up the megasas_cmd given the context. The
4101 * free commands themselves are maintained in a linked list called cmd_pool.
4103 int megasas_alloc_cmds(struct megasas_instance
*instance
)
4108 struct megasas_cmd
*cmd
;
4110 max_cmd
= instance
->max_mfi_cmds
;
4113 * instance->cmd_list is an array of struct megasas_cmd pointers.
4114 * Allocate the dynamic array first and then allocate individual
4117 instance
->cmd_list
= kcalloc(max_cmd
, sizeof(struct megasas_cmd
*), GFP_KERNEL
);
4119 if (!instance
->cmd_list
) {
4120 dev_printk(KERN_DEBUG
, &instance
->pdev
->dev
, "out of memory\n");
4124 memset(instance
->cmd_list
, 0, sizeof(struct megasas_cmd
*) *max_cmd
);
4126 for (i
= 0; i
< max_cmd
; i
++) {
4127 instance
->cmd_list
[i
] = kmalloc(sizeof(struct megasas_cmd
),
4130 if (!instance
->cmd_list
[i
]) {
4132 for (j
= 0; j
< i
; j
++)
4133 kfree(instance
->cmd_list
[j
]);
4135 kfree(instance
->cmd_list
);
4136 instance
->cmd_list
= NULL
;
4142 for (i
= 0; i
< max_cmd
; i
++) {
4143 cmd
= instance
->cmd_list
[i
];
4144 memset(cmd
, 0, sizeof(struct megasas_cmd
));
4147 cmd
->instance
= instance
;
4149 list_add_tail(&cmd
->list
, &instance
->cmd_pool
);
4153 * Create a frame pool and assign one frame to each cmd
4155 if (megasas_create_frame_pool(instance
)) {
4156 dev_printk(KERN_DEBUG
, &instance
->pdev
->dev
, "Error creating frame DMA pool\n");
4157 megasas_free_cmds(instance
);
4164 * dcmd_timeout_ocr_possible - Check if OCR is possible based on Driver/FW state.
4165 * @instance: Adapter soft state
4167 * Return 0 for only Fusion adapter, if driver load/unload is not in progress
4168 * or FW is not under OCR.
4171 dcmd_timeout_ocr_possible(struct megasas_instance
*instance
) {
4173 if (instance
->adapter_type
== MFI_SERIES
)
4174 return KILL_ADAPTER
;
4175 else if (instance
->unload
||
4176 test_bit(MEGASAS_FUSION_IN_RESET
, &instance
->reset_flags
))
4177 return IGNORE_TIMEOUT
;
4179 return INITIATE_OCR
;
4183 megasas_get_pd_info(struct megasas_instance
*instance
, struct scsi_device
*sdev
)
4186 struct megasas_cmd
*cmd
;
4187 struct megasas_dcmd_frame
*dcmd
;
4189 struct MR_PRIV_DEVICE
*mr_device_priv_data
;
4192 device_id
= (sdev
->channel
* MEGASAS_MAX_DEV_PER_CHANNEL
) + sdev
->id
;
4193 cmd
= megasas_get_cmd(instance
);
4196 dev_err(&instance
->pdev
->dev
, "Failed to get cmd %s\n", __func__
);
4200 dcmd
= &cmd
->frame
->dcmd
;
4202 memset(instance
->pd_info
, 0, sizeof(*instance
->pd_info
));
4203 memset(dcmd
->mbox
.b
, 0, MFI_MBOX_SIZE
);
4205 dcmd
->mbox
.s
[0] = cpu_to_le16(device_id
);
4206 dcmd
->cmd
= MFI_CMD_DCMD
;
4207 dcmd
->cmd_status
= 0xFF;
4208 dcmd
->sge_count
= 1;
4209 dcmd
->flags
= MFI_FRAME_DIR_READ
;
4212 dcmd
->data_xfer_len
= cpu_to_le32(sizeof(struct MR_PD_INFO
));
4213 dcmd
->opcode
= cpu_to_le32(MR_DCMD_PD_GET_INFO
);
4215 megasas_set_dma_settings(instance
, dcmd
, instance
->pd_info_h
,
4216 sizeof(struct MR_PD_INFO
));
4218 if ((instance
->adapter_type
!= MFI_SERIES
) &&
4219 !instance
->mask_interrupts
)
4220 ret
= megasas_issue_blocked_cmd(instance
, cmd
, MFI_IO_TIMEOUT_SECS
);
4222 ret
= megasas_issue_polled(instance
, cmd
);
4226 mr_device_priv_data
= sdev
->hostdata
;
4227 le16_to_cpus((u16
*)&instance
->pd_info
->state
.ddf
.pdType
);
4228 mr_device_priv_data
->interface_type
=
4229 instance
->pd_info
->state
.ddf
.pdType
.intf
;
4234 switch (dcmd_timeout_ocr_possible(instance
)) {
4236 cmd
->flags
|= DRV_DCMD_SKIP_REFIRE
;
4237 megasas_reset_fusion(instance
->host
,
4238 MFI_IO_TIMEOUT_OCR
);
4241 megaraid_sas_kill_hba(instance
);
4243 case IGNORE_TIMEOUT
:
4244 dev_info(&instance
->pdev
->dev
, "Ignore DCMD timeout: %s %d\n",
4245 __func__
, __LINE__
);
4252 if (ret
!= DCMD_TIMEOUT
)
4253 megasas_return_cmd(instance
, cmd
);
4258 * megasas_get_pd_list_info - Returns FW's pd_list structure
4259 * @instance: Adapter soft state
4260 * @pd_list: pd_list structure
4262 * Issues an internal command (DCMD) to get the FW's controller PD
4263 * list structure. This information is mainly used to find out SYSTEM
4264 * supported by the FW.
4267 megasas_get_pd_list(struct megasas_instance
*instance
)
4269 int ret
= 0, pd_index
= 0;
4270 struct megasas_cmd
*cmd
;
4271 struct megasas_dcmd_frame
*dcmd
;
4272 struct MR_PD_LIST
*ci
;
4273 struct MR_PD_ADDRESS
*pd_addr
;
4274 dma_addr_t ci_h
= 0;
4276 if (instance
->pd_list_not_supported
) {
4277 dev_info(&instance
->pdev
->dev
, "MR_DCMD_PD_LIST_QUERY "
4278 "not supported by firmware\n");
4282 ci
= instance
->pd_list_buf
;
4283 ci_h
= instance
->pd_list_buf_h
;
4285 cmd
= megasas_get_cmd(instance
);
4288 dev_printk(KERN_DEBUG
, &instance
->pdev
->dev
, "(get_pd_list): Failed to get cmd\n");
4292 dcmd
= &cmd
->frame
->dcmd
;
4294 memset(ci
, 0, sizeof(*ci
));
4295 memset(dcmd
->mbox
.b
, 0, MFI_MBOX_SIZE
);
4297 dcmd
->mbox
.b
[0] = MR_PD_QUERY_TYPE_EXPOSED_TO_HOST
;
4298 dcmd
->mbox
.b
[1] = 0;
4299 dcmd
->cmd
= MFI_CMD_DCMD
;
4300 dcmd
->cmd_status
= MFI_STAT_INVALID_STATUS
;
4301 dcmd
->sge_count
= 1;
4302 dcmd
->flags
= MFI_FRAME_DIR_READ
;
4305 dcmd
->data_xfer_len
= cpu_to_le32(MEGASAS_MAX_PD
* sizeof(struct MR_PD_LIST
));
4306 dcmd
->opcode
= cpu_to_le32(MR_DCMD_PD_LIST_QUERY
);
4308 megasas_set_dma_settings(instance
, dcmd
, instance
->pd_list_buf_h
,
4309 (MEGASAS_MAX_PD
* sizeof(struct MR_PD_LIST
)));
4311 if ((instance
->adapter_type
!= MFI_SERIES
) &&
4312 !instance
->mask_interrupts
)
4313 ret
= megasas_issue_blocked_cmd(instance
, cmd
,
4314 MFI_IO_TIMEOUT_SECS
);
4316 ret
= megasas_issue_polled(instance
, cmd
);
4320 dev_info(&instance
->pdev
->dev
, "MR_DCMD_PD_LIST_QUERY "
4321 "failed/not supported by firmware\n");
4323 if (instance
->adapter_type
!= MFI_SERIES
)
4324 megaraid_sas_kill_hba(instance
);
4326 instance
->pd_list_not_supported
= 1;
4330 switch (dcmd_timeout_ocr_possible(instance
)) {
4332 cmd
->flags
|= DRV_DCMD_SKIP_REFIRE
;
4334 * DCMD failed from AEN path.
4335 * AEN path already hold reset_mutex to avoid PCI access
4336 * while OCR is in progress.
4338 mutex_unlock(&instance
->reset_mutex
);
4339 megasas_reset_fusion(instance
->host
,
4340 MFI_IO_TIMEOUT_OCR
);
4341 mutex_lock(&instance
->reset_mutex
);
4344 megaraid_sas_kill_hba(instance
);
4346 case IGNORE_TIMEOUT
:
4347 dev_info(&instance
->pdev
->dev
, "Ignore DCMD timeout: %s %d \n",
4348 __func__
, __LINE__
);
4357 if ((le32_to_cpu(ci
->count
) >
4358 (MEGASAS_MAX_PD_CHANNELS
* MEGASAS_MAX_DEV_PER_CHANNEL
)))
4361 memset(instance
->local_pd_list
, 0,
4362 MEGASAS_MAX_PD
* sizeof(struct megasas_pd_list
));
4364 for (pd_index
= 0; pd_index
< le32_to_cpu(ci
->count
); pd_index
++) {
4365 instance
->local_pd_list
[le16_to_cpu(pd_addr
->deviceId
)].tid
=
4366 le16_to_cpu(pd_addr
->deviceId
);
4367 instance
->local_pd_list
[le16_to_cpu(pd_addr
->deviceId
)].driveType
=
4368 pd_addr
->scsiDevType
;
4369 instance
->local_pd_list
[le16_to_cpu(pd_addr
->deviceId
)].driveState
=
4374 memcpy(instance
->pd_list
, instance
->local_pd_list
,
4375 sizeof(instance
->pd_list
));
4380 if (ret
!= DCMD_TIMEOUT
)
4381 megasas_return_cmd(instance
, cmd
);
4387 * megasas_get_ld_list_info - Returns FW's ld_list structure
4388 * @instance: Adapter soft state
4389 * @ld_list: ld_list structure
4391 * Issues an internal command (DCMD) to get the FW's controller PD
4392 * list structure. This information is mainly used to find out SYSTEM
4393 * supported by the FW.
4396 megasas_get_ld_list(struct megasas_instance
*instance
)
4398 int ret
= 0, ld_index
= 0, ids
= 0;
4399 struct megasas_cmd
*cmd
;
4400 struct megasas_dcmd_frame
*dcmd
;
4401 struct MR_LD_LIST
*ci
;
4402 dma_addr_t ci_h
= 0;
4405 ci
= instance
->ld_list_buf
;
4406 ci_h
= instance
->ld_list_buf_h
;
4408 cmd
= megasas_get_cmd(instance
);
4411 dev_printk(KERN_DEBUG
, &instance
->pdev
->dev
, "megasas_get_ld_list: Failed to get cmd\n");
4415 dcmd
= &cmd
->frame
->dcmd
;
4417 memset(ci
, 0, sizeof(*ci
));
4418 memset(dcmd
->mbox
.b
, 0, MFI_MBOX_SIZE
);
4420 if (instance
->supportmax256vd
)
4421 dcmd
->mbox
.b
[0] = 1;
4422 dcmd
->cmd
= MFI_CMD_DCMD
;
4423 dcmd
->cmd_status
= MFI_STAT_INVALID_STATUS
;
4424 dcmd
->sge_count
= 1;
4425 dcmd
->flags
= MFI_FRAME_DIR_READ
;
4427 dcmd
->data_xfer_len
= cpu_to_le32(sizeof(struct MR_LD_LIST
));
4428 dcmd
->opcode
= cpu_to_le32(MR_DCMD_LD_GET_LIST
);
4431 megasas_set_dma_settings(instance
, dcmd
, ci_h
,
4432 sizeof(struct MR_LD_LIST
));
4434 if ((instance
->adapter_type
!= MFI_SERIES
) &&
4435 !instance
->mask_interrupts
)
4436 ret
= megasas_issue_blocked_cmd(instance
, cmd
,
4437 MFI_IO_TIMEOUT_SECS
);
4439 ret
= megasas_issue_polled(instance
, cmd
);
4441 ld_count
= le32_to_cpu(ci
->ldCount
);
4445 megaraid_sas_kill_hba(instance
);
4449 switch (dcmd_timeout_ocr_possible(instance
)) {
4451 cmd
->flags
|= DRV_DCMD_SKIP_REFIRE
;
4453 * DCMD failed from AEN path.
4454 * AEN path already hold reset_mutex to avoid PCI access
4455 * while OCR is in progress.
4457 mutex_unlock(&instance
->reset_mutex
);
4458 megasas_reset_fusion(instance
->host
,
4459 MFI_IO_TIMEOUT_OCR
);
4460 mutex_lock(&instance
->reset_mutex
);
4463 megaraid_sas_kill_hba(instance
);
4465 case IGNORE_TIMEOUT
:
4466 dev_info(&instance
->pdev
->dev
, "Ignore DCMD timeout: %s %d\n",
4467 __func__
, __LINE__
);
4474 if (ld_count
> instance
->fw_supported_vd_count
)
4477 memset(instance
->ld_ids
, 0xff, MAX_LOGICAL_DRIVES_EXT
);
4479 for (ld_index
= 0; ld_index
< ld_count
; ld_index
++) {
4480 if (ci
->ldList
[ld_index
].state
!= 0) {
4481 ids
= ci
->ldList
[ld_index
].ref
.targetId
;
4482 instance
->ld_ids
[ids
] = ci
->ldList
[ld_index
].ref
.targetId
;
4489 if (ret
!= DCMD_TIMEOUT
)
4490 megasas_return_cmd(instance
, cmd
);
4496 * megasas_ld_list_query - Returns FW's ld_list structure
4497 * @instance: Adapter soft state
4498 * @ld_list: ld_list structure
4500 * Issues an internal command (DCMD) to get the FW's controller PD
4501 * list structure. This information is mainly used to find out SYSTEM
4502 * supported by the FW.
4505 megasas_ld_list_query(struct megasas_instance
*instance
, u8 query_type
)
4507 int ret
= 0, ld_index
= 0, ids
= 0;
4508 struct megasas_cmd
*cmd
;
4509 struct megasas_dcmd_frame
*dcmd
;
4510 struct MR_LD_TARGETID_LIST
*ci
;
4511 dma_addr_t ci_h
= 0;
4514 ci
= instance
->ld_targetid_list_buf
;
4515 ci_h
= instance
->ld_targetid_list_buf_h
;
4517 cmd
= megasas_get_cmd(instance
);
4520 dev_warn(&instance
->pdev
->dev
,
4521 "megasas_ld_list_query: Failed to get cmd\n");
4525 dcmd
= &cmd
->frame
->dcmd
;
4527 memset(ci
, 0, sizeof(*ci
));
4528 memset(dcmd
->mbox
.b
, 0, MFI_MBOX_SIZE
);
4530 dcmd
->mbox
.b
[0] = query_type
;
4531 if (instance
->supportmax256vd
)
4532 dcmd
->mbox
.b
[2] = 1;
4534 dcmd
->cmd
= MFI_CMD_DCMD
;
4535 dcmd
->cmd_status
= MFI_STAT_INVALID_STATUS
;
4536 dcmd
->sge_count
= 1;
4537 dcmd
->flags
= MFI_FRAME_DIR_READ
;
4539 dcmd
->data_xfer_len
= cpu_to_le32(sizeof(struct MR_LD_TARGETID_LIST
));
4540 dcmd
->opcode
= cpu_to_le32(MR_DCMD_LD_LIST_QUERY
);
4543 megasas_set_dma_settings(instance
, dcmd
, ci_h
,
4544 sizeof(struct MR_LD_TARGETID_LIST
));
4546 if ((instance
->adapter_type
!= MFI_SERIES
) &&
4547 !instance
->mask_interrupts
)
4548 ret
= megasas_issue_blocked_cmd(instance
, cmd
, MFI_IO_TIMEOUT_SECS
);
4550 ret
= megasas_issue_polled(instance
, cmd
);
4554 dev_info(&instance
->pdev
->dev
,
4555 "DCMD not supported by firmware - %s %d\n",
4556 __func__
, __LINE__
);
4557 ret
= megasas_get_ld_list(instance
);
4560 switch (dcmd_timeout_ocr_possible(instance
)) {
4562 cmd
->flags
|= DRV_DCMD_SKIP_REFIRE
;
4564 * DCMD failed from AEN path.
4565 * AEN path already hold reset_mutex to avoid PCI access
4566 * while OCR is in progress.
4568 mutex_unlock(&instance
->reset_mutex
);
4569 megasas_reset_fusion(instance
->host
,
4570 MFI_IO_TIMEOUT_OCR
);
4571 mutex_lock(&instance
->reset_mutex
);
4574 megaraid_sas_kill_hba(instance
);
4576 case IGNORE_TIMEOUT
:
4577 dev_info(&instance
->pdev
->dev
, "Ignore DCMD timeout: %s %d\n",
4578 __func__
, __LINE__
);
4584 tgtid_count
= le32_to_cpu(ci
->count
);
4586 if ((tgtid_count
> (instance
->fw_supported_vd_count
)))
4589 memset(instance
->ld_ids
, 0xff, MEGASAS_MAX_LD_IDS
);
4590 for (ld_index
= 0; ld_index
< tgtid_count
; ld_index
++) {
4591 ids
= ci
->targetId
[ld_index
];
4592 instance
->ld_ids
[ids
] = ci
->targetId
[ld_index
];
4598 if (ret
!= DCMD_TIMEOUT
)
4599 megasas_return_cmd(instance
, cmd
);
4605 * megasas_update_ext_vd_details : Update details w.r.t Extended VD
4606 * instance : Controller's instance
4608 static void megasas_update_ext_vd_details(struct megasas_instance
*instance
)
4610 struct fusion_context
*fusion
;
4611 u32 ventura_map_sz
= 0;
4613 fusion
= instance
->ctrl_context
;
4614 /* For MFI based controllers return dummy success */
4618 instance
->supportmax256vd
=
4619 instance
->ctrl_info_buf
->adapterOperations3
.supportMaxExtLDs
;
4620 /* Below is additional check to address future FW enhancement */
4621 if (instance
->ctrl_info_buf
->max_lds
> 64)
4622 instance
->supportmax256vd
= 1;
4624 instance
->drv_supported_vd_count
= MEGASAS_MAX_LD_CHANNELS
4625 * MEGASAS_MAX_DEV_PER_CHANNEL
;
4626 instance
->drv_supported_pd_count
= MEGASAS_MAX_PD_CHANNELS
4627 * MEGASAS_MAX_DEV_PER_CHANNEL
;
4628 if (instance
->supportmax256vd
) {
4629 instance
->fw_supported_vd_count
= MAX_LOGICAL_DRIVES_EXT
;
4630 instance
->fw_supported_pd_count
= MAX_PHYSICAL_DEVICES
;
4632 instance
->fw_supported_vd_count
= MAX_LOGICAL_DRIVES
;
4633 instance
->fw_supported_pd_count
= MAX_PHYSICAL_DEVICES
;
4636 dev_info(&instance
->pdev
->dev
,
4637 "firmware type\t: %s\n",
4638 instance
->supportmax256vd
? "Extended VD(240 VD)firmware" :
4639 "Legacy(64 VD) firmware");
4641 if (instance
->max_raid_mapsize
) {
4642 ventura_map_sz
= instance
->max_raid_mapsize
*
4643 MR_MIN_MAP_SIZE
; /* 64k */
4644 fusion
->current_map_sz
= ventura_map_sz
;
4645 fusion
->max_map_sz
= ventura_map_sz
;
4647 fusion
->old_map_sz
= sizeof(struct MR_FW_RAID_MAP
) +
4648 (sizeof(struct MR_LD_SPAN_MAP
) *
4649 (instance
->fw_supported_vd_count
- 1));
4650 fusion
->new_map_sz
= sizeof(struct MR_FW_RAID_MAP_EXT
);
4652 fusion
->max_map_sz
=
4653 max(fusion
->old_map_sz
, fusion
->new_map_sz
);
4655 if (instance
->supportmax256vd
)
4656 fusion
->current_map_sz
= fusion
->new_map_sz
;
4658 fusion
->current_map_sz
= fusion
->old_map_sz
;
4660 /* irrespective of FW raid maps, driver raid map is constant */
4661 fusion
->drv_map_sz
= sizeof(struct MR_DRV_RAID_MAP_ALL
);
4665 * megasas_get_controller_info - Returns FW's controller structure
4666 * @instance: Adapter soft state
4668 * Issues an internal command (DCMD) to get the FW's controller structure.
4669 * This information is mainly used to find out the maximum IO transfer per
4670 * command supported by the FW.
4673 megasas_get_ctrl_info(struct megasas_instance
*instance
)
4676 struct megasas_cmd
*cmd
;
4677 struct megasas_dcmd_frame
*dcmd
;
4678 struct megasas_ctrl_info
*ci
;
4679 dma_addr_t ci_h
= 0;
4681 ci
= instance
->ctrl_info_buf
;
4682 ci_h
= instance
->ctrl_info_buf_h
;
4684 cmd
= megasas_get_cmd(instance
);
4687 dev_printk(KERN_DEBUG
, &instance
->pdev
->dev
, "Failed to get a free cmd\n");
4691 dcmd
= &cmd
->frame
->dcmd
;
4693 memset(ci
, 0, sizeof(*ci
));
4694 memset(dcmd
->mbox
.b
, 0, MFI_MBOX_SIZE
);
4696 dcmd
->cmd
= MFI_CMD_DCMD
;
4697 dcmd
->cmd_status
= MFI_STAT_INVALID_STATUS
;
4698 dcmd
->sge_count
= 1;
4699 dcmd
->flags
= MFI_FRAME_DIR_READ
;
4702 dcmd
->data_xfer_len
= cpu_to_le32(sizeof(struct megasas_ctrl_info
));
4703 dcmd
->opcode
= cpu_to_le32(MR_DCMD_CTRL_GET_INFO
);
4704 dcmd
->mbox
.b
[0] = 1;
4706 megasas_set_dma_settings(instance
, dcmd
, ci_h
,
4707 sizeof(struct megasas_ctrl_info
));
4709 if ((instance
->adapter_type
!= MFI_SERIES
) &&
4710 !instance
->mask_interrupts
) {
4711 ret
= megasas_issue_blocked_cmd(instance
, cmd
, MFI_IO_TIMEOUT_SECS
);
4713 ret
= megasas_issue_polled(instance
, cmd
);
4714 cmd
->flags
|= DRV_DCMD_SKIP_REFIRE
;
4719 /* Save required controller information in
4720 * CPU endianness format.
4722 le32_to_cpus((u32
*)&ci
->properties
.OnOffProperties
);
4723 le32_to_cpus((u32
*)&ci
->adapterOperations2
);
4724 le32_to_cpus((u32
*)&ci
->adapterOperations3
);
4725 le16_to_cpus((u16
*)&ci
->adapter_operations4
);
4727 /* Update the latest Ext VD info.
4728 * From Init path, store current firmware details.
4729 * From OCR path, detect any firmware properties changes.
4730 * in case of Firmware upgrade without system reboot.
4732 megasas_update_ext_vd_details(instance
);
4733 instance
->use_seqnum_jbod_fp
=
4734 ci
->adapterOperations3
.useSeqNumJbodFP
;
4735 instance
->support_morethan256jbod
=
4736 ci
->adapter_operations4
.support_pd_map_target_id
;
4737 instance
->support_nvme_passthru
=
4738 ci
->adapter_operations4
.support_nvme_passthru
;
4739 instance
->task_abort_tmo
= ci
->TaskAbortTO
;
4740 instance
->max_reset_tmo
= ci
->MaxResetTO
;
4742 /*Check whether controller is iMR or MR */
4743 instance
->is_imr
= (ci
->memory_size
? 0 : 1);
4744 dev_info(&instance
->pdev
->dev
,
4745 "controller type\t: %s(%dMB)\n",
4746 instance
->is_imr
? "iMR" : "MR",
4747 le16_to_cpu(ci
->memory_size
));
4749 instance
->disableOnlineCtrlReset
=
4750 ci
->properties
.OnOffProperties
.disableOnlineCtrlReset
;
4751 instance
->secure_jbod_support
=
4752 ci
->adapterOperations3
.supportSecurityonJBOD
;
4753 dev_info(&instance
->pdev
->dev
, "Online Controller Reset(OCR)\t: %s\n",
4754 instance
->disableOnlineCtrlReset
? "Disabled" : "Enabled");
4755 dev_info(&instance
->pdev
->dev
, "Secure JBOD support\t: %s\n",
4756 instance
->secure_jbod_support
? "Yes" : "No");
4757 dev_info(&instance
->pdev
->dev
, "NVMe passthru support\t: %s\n",
4758 instance
->support_nvme_passthru
? "Yes" : "No");
4759 dev_info(&instance
->pdev
->dev
,
4760 "FW provided TM TaskAbort/Reset timeout\t: %d secs/%d secs\n",
4761 instance
->task_abort_tmo
, instance
->max_reset_tmo
);
4766 switch (dcmd_timeout_ocr_possible(instance
)) {
4768 cmd
->flags
|= DRV_DCMD_SKIP_REFIRE
;
4769 megasas_reset_fusion(instance
->host
,
4770 MFI_IO_TIMEOUT_OCR
);
4773 megaraid_sas_kill_hba(instance
);
4775 case IGNORE_TIMEOUT
:
4776 dev_info(&instance
->pdev
->dev
, "Ignore DCMD timeout: %s %d\n",
4777 __func__
, __LINE__
);
4782 megaraid_sas_kill_hba(instance
);
4787 if (ret
!= DCMD_TIMEOUT
)
4788 megasas_return_cmd(instance
, cmd
);
4794 * megasas_set_crash_dump_params - Sends address of crash dump DMA buffer
4797 * @instance: Adapter soft state
4798 * @crash_buf_state - tell FW to turn ON/OFF crash dump feature
4799 MR_CRASH_BUF_TURN_OFF = 0
4800 MR_CRASH_BUF_TURN_ON = 1
4801 * @return 0 on success non-zero on failure.
4802 * Issues an internal command (DCMD) to set parameters for crash dump feature.
4803 * Driver will send address of crash dump DMA buffer and set mbox to tell FW
4804 * that driver supports crash dump feature. This DCMD will be sent only if
4805 * crash dump feature is supported by the FW.
4808 int megasas_set_crash_dump_params(struct megasas_instance
*instance
,
4812 struct megasas_cmd
*cmd
;
4813 struct megasas_dcmd_frame
*dcmd
;
4815 cmd
= megasas_get_cmd(instance
);
4818 dev_err(&instance
->pdev
->dev
, "Failed to get a free cmd\n");
4823 dcmd
= &cmd
->frame
->dcmd
;
4825 memset(dcmd
->mbox
.b
, 0, MFI_MBOX_SIZE
);
4826 dcmd
->mbox
.b
[0] = crash_buf_state
;
4827 dcmd
->cmd
= MFI_CMD_DCMD
;
4828 dcmd
->cmd_status
= MFI_STAT_INVALID_STATUS
;
4829 dcmd
->sge_count
= 1;
4830 dcmd
->flags
= MFI_FRAME_DIR_NONE
;
4833 dcmd
->data_xfer_len
= cpu_to_le32(CRASH_DMA_BUF_SIZE
);
4834 dcmd
->opcode
= cpu_to_le32(MR_DCMD_CTRL_SET_CRASH_DUMP_PARAMS
);
4836 megasas_set_dma_settings(instance
, dcmd
, instance
->crash_dump_h
,
4837 CRASH_DMA_BUF_SIZE
);
4839 if ((instance
->adapter_type
!= MFI_SERIES
) &&
4840 !instance
->mask_interrupts
)
4841 ret
= megasas_issue_blocked_cmd(instance
, cmd
, MFI_IO_TIMEOUT_SECS
);
4843 ret
= megasas_issue_polled(instance
, cmd
);
4845 if (ret
== DCMD_TIMEOUT
) {
4846 switch (dcmd_timeout_ocr_possible(instance
)) {
4848 cmd
->flags
|= DRV_DCMD_SKIP_REFIRE
;
4849 megasas_reset_fusion(instance
->host
,
4850 MFI_IO_TIMEOUT_OCR
);
4853 megaraid_sas_kill_hba(instance
);
4855 case IGNORE_TIMEOUT
:
4856 dev_info(&instance
->pdev
->dev
, "Ignore DCMD timeout: %s %d\n",
4857 __func__
, __LINE__
);
4861 megasas_return_cmd(instance
, cmd
);
4867 * megasas_issue_init_mfi - Initializes the FW
4868 * @instance: Adapter soft state
4870 * Issues the INIT MFI cmd
4873 megasas_issue_init_mfi(struct megasas_instance
*instance
)
4876 struct megasas_cmd
*cmd
;
4877 struct megasas_init_frame
*init_frame
;
4878 struct megasas_init_queue_info
*initq_info
;
4879 dma_addr_t init_frame_h
;
4880 dma_addr_t initq_info_h
;
4883 * Prepare a init frame. Note the init frame points to queue info
4884 * structure. Each frame has SGL allocated after first 64 bytes. For
4885 * this frame - since we don't need any SGL - we use SGL's space as
4886 * queue info structure
4888 * We will not get a NULL command below. We just created the pool.
4890 cmd
= megasas_get_cmd(instance
);
4892 init_frame
= (struct megasas_init_frame
*)cmd
->frame
;
4893 initq_info
= (struct megasas_init_queue_info
*)
4894 ((unsigned long)init_frame
+ 64);
4896 init_frame_h
= cmd
->frame_phys_addr
;
4897 initq_info_h
= init_frame_h
+ 64;
4899 context
= init_frame
->context
;
4900 memset(init_frame
, 0, MEGAMFI_FRAME_SIZE
);
4901 memset(initq_info
, 0, sizeof(struct megasas_init_queue_info
));
4902 init_frame
->context
= context
;
4904 initq_info
->reply_queue_entries
= cpu_to_le32(instance
->max_fw_cmds
+ 1);
4905 initq_info
->reply_queue_start_phys_addr_lo
= cpu_to_le32(instance
->reply_queue_h
);
4907 initq_info
->producer_index_phys_addr_lo
= cpu_to_le32(instance
->producer_h
);
4908 initq_info
->consumer_index_phys_addr_lo
= cpu_to_le32(instance
->consumer_h
);
4910 init_frame
->cmd
= MFI_CMD_INIT
;
4911 init_frame
->cmd_status
= MFI_STAT_INVALID_STATUS
;
4912 init_frame
->queue_info_new_phys_addr_lo
=
4913 cpu_to_le32(lower_32_bits(initq_info_h
));
4914 init_frame
->queue_info_new_phys_addr_hi
=
4915 cpu_to_le32(upper_32_bits(initq_info_h
));
4917 init_frame
->data_xfer_len
= cpu_to_le32(sizeof(struct megasas_init_queue_info
));
4920 * disable the intr before firing the init frame to FW
4922 instance
->instancet
->disable_intr(instance
);
4925 * Issue the init frame in polled mode
4928 if (megasas_issue_polled(instance
, cmd
)) {
4929 dev_err(&instance
->pdev
->dev
, "Failed to init firmware\n");
4930 megasas_return_cmd(instance
, cmd
);
4934 megasas_return_cmd(instance
, cmd
);
4943 megasas_init_adapter_mfi(struct megasas_instance
*instance
)
4945 struct megasas_register_set __iomem
*reg_set
;
4949 reg_set
= instance
->reg_set
;
4952 * Get various operational parameters from status register
4954 instance
->max_fw_cmds
= instance
->instancet
->read_fw_status_reg(reg_set
) & 0x00FFFF;
4956 * Reduce the max supported cmds by 1. This is to ensure that the
4957 * reply_q_sz (1 more than the max cmd that driver may send)
4958 * does not exceed max cmds that the FW can support
4960 instance
->max_fw_cmds
= instance
->max_fw_cmds
-1;
4961 instance
->max_mfi_cmds
= instance
->max_fw_cmds
;
4962 instance
->max_num_sge
= (instance
->instancet
->read_fw_status_reg(reg_set
) & 0xFF0000) >>
4965 * For MFI skinny adapters, MEGASAS_SKINNY_INT_CMDS commands
4966 * are reserved for IOCTL + driver's internal DCMDs.
4968 if ((instance
->pdev
->device
== PCI_DEVICE_ID_LSI_SAS0073SKINNY
) ||
4969 (instance
->pdev
->device
== PCI_DEVICE_ID_LSI_SAS0071SKINNY
)) {
4970 instance
->max_scsi_cmds
= (instance
->max_fw_cmds
-
4971 MEGASAS_SKINNY_INT_CMDS
);
4972 sema_init(&instance
->ioctl_sem
, MEGASAS_SKINNY_INT_CMDS
);
4974 instance
->max_scsi_cmds
= (instance
->max_fw_cmds
-
4976 sema_init(&instance
->ioctl_sem
, (MEGASAS_MFI_IOCTL_CMDS
));
4979 instance
->cur_can_queue
= instance
->max_scsi_cmds
;
4981 * Create a pool of commands
4983 if (megasas_alloc_cmds(instance
))
4984 goto fail_alloc_cmds
;
4987 * Allocate memory for reply queue. Length of reply queue should
4988 * be _one_ more than the maximum commands handled by the firmware.
4990 * Note: When FW completes commands, it places corresponding contex
4991 * values in this circular reply queue. This circular queue is a fairly
4992 * typical producer-consumer queue. FW is the producer (of completed
4993 * commands) and the driver is the consumer.
4995 context_sz
= sizeof(u32
);
4996 reply_q_sz
= context_sz
* (instance
->max_fw_cmds
+ 1);
4998 instance
->reply_queue
= dma_alloc_coherent(&instance
->pdev
->dev
,
4999 reply_q_sz
, &instance
->reply_queue_h
, GFP_KERNEL
);
5001 if (!instance
->reply_queue
) {
5002 dev_printk(KERN_DEBUG
, &instance
->pdev
->dev
, "Out of DMA mem for reply queue\n");
5003 goto fail_reply_queue
;
5006 if (megasas_issue_init_mfi(instance
))
5009 if (megasas_get_ctrl_info(instance
)) {
5010 dev_err(&instance
->pdev
->dev
, "(%d): Could get controller info "
5011 "Fail from %s %d\n", instance
->unique_id
,
5012 __func__
, __LINE__
);
5016 instance
->fw_support_ieee
= 0;
5017 instance
->fw_support_ieee
=
5018 (instance
->instancet
->read_fw_status_reg(reg_set
) &
5021 dev_notice(&instance
->pdev
->dev
, "megasas_init_mfi: fw_support_ieee=%d",
5022 instance
->fw_support_ieee
);
5024 if (instance
->fw_support_ieee
)
5025 instance
->flag_ieee
= 1;
5031 dma_free_coherent(&instance
->pdev
->dev
, reply_q_sz
,
5032 instance
->reply_queue
, instance
->reply_queue_h
);
5034 megasas_free_cmds(instance
);
5041 * megasas_setup_irqs_ioapic - register legacy interrupts.
5042 * @instance: Adapter soft state
5044 * Do not enable interrupt, only setup ISRs.
5046 * Return 0 on success.
5049 megasas_setup_irqs_ioapic(struct megasas_instance
*instance
)
5051 struct pci_dev
*pdev
;
5053 pdev
= instance
->pdev
;
5054 instance
->irq_context
[0].instance
= instance
;
5055 instance
->irq_context
[0].MSIxIndex
= 0;
5056 if (request_irq(pci_irq_vector(pdev
, 0),
5057 instance
->instancet
->service_isr
, IRQF_SHARED
,
5058 "megasas", &instance
->irq_context
[0])) {
5059 dev_err(&instance
->pdev
->dev
,
5060 "Failed to register IRQ from %s %d\n",
5061 __func__
, __LINE__
);
5068 * megasas_setup_irqs_msix - register MSI-x interrupts.
5069 * @instance: Adapter soft state
5070 * @is_probe: Driver probe check
5072 * Do not enable interrupt, only setup ISRs.
5074 * Return 0 on success.
5077 megasas_setup_irqs_msix(struct megasas_instance
*instance
, u8 is_probe
)
5080 struct pci_dev
*pdev
;
5082 pdev
= instance
->pdev
;
5085 for (i
= 0; i
< instance
->msix_vectors
; i
++) {
5086 instance
->irq_context
[i
].instance
= instance
;
5087 instance
->irq_context
[i
].MSIxIndex
= i
;
5088 if (request_irq(pci_irq_vector(pdev
, i
),
5089 instance
->instancet
->service_isr
, 0, "megasas",
5090 &instance
->irq_context
[i
])) {
5091 dev_err(&instance
->pdev
->dev
,
5092 "Failed to register IRQ for vector %d.\n", i
);
5093 for (j
= 0; j
< i
; j
++)
5094 free_irq(pci_irq_vector(pdev
, j
),
5095 &instance
->irq_context
[j
]);
5096 /* Retry irq register for IO_APIC*/
5097 instance
->msix_vectors
= 0;
5099 pci_free_irq_vectors(instance
->pdev
);
5100 return megasas_setup_irqs_ioapic(instance
);
5110 * megasas_destroy_irqs- unregister interrupts.
5111 * @instance: Adapter soft state
5115 megasas_destroy_irqs(struct megasas_instance
*instance
) {
5119 if (instance
->msix_vectors
)
5120 for (i
= 0; i
< instance
->msix_vectors
; i
++) {
5121 free_irq(pci_irq_vector(instance
->pdev
, i
),
5122 &instance
->irq_context
[i
]);
5125 free_irq(pci_irq_vector(instance
->pdev
, 0),
5126 &instance
->irq_context
[0]);
5130 * megasas_setup_jbod_map - setup jbod map for FP seq_number.
5131 * @instance: Adapter soft state
5132 * @is_probe: Driver probe check
5134 * Return 0 on success.
5137 megasas_setup_jbod_map(struct megasas_instance
*instance
)
5140 struct fusion_context
*fusion
= instance
->ctrl_context
;
5143 pd_seq_map_sz
= sizeof(struct MR_PD_CFG_SEQ_NUM_SYNC
) +
5144 (sizeof(struct MR_PD_CFG_SEQ
) * (MAX_PHYSICAL_DEVICES
- 1));
5146 if (reset_devices
|| !fusion
||
5147 !instance
->ctrl_info_buf
->adapterOperations3
.useSeqNumJbodFP
) {
5148 dev_info(&instance
->pdev
->dev
,
5149 "Jbod map is not supported %s %d\n",
5150 __func__
, __LINE__
);
5151 instance
->use_seqnum_jbod_fp
= false;
5155 if (fusion
->pd_seq_sync
[0])
5158 for (i
= 0; i
< JBOD_MAPS_COUNT
; i
++) {
5159 fusion
->pd_seq_sync
[i
] = dma_alloc_coherent
5160 (&instance
->pdev
->dev
, pd_seq_map_sz
,
5161 &fusion
->pd_seq_phys
[i
], GFP_KERNEL
);
5162 if (!fusion
->pd_seq_sync
[i
]) {
5163 dev_err(&instance
->pdev
->dev
,
5164 "Failed to allocate memory from %s %d\n",
5165 __func__
, __LINE__
);
5167 dma_free_coherent(&instance
->pdev
->dev
,
5168 pd_seq_map_sz
, fusion
->pd_seq_sync
[0],
5169 fusion
->pd_seq_phys
[0]);
5170 fusion
->pd_seq_sync
[0] = NULL
;
5172 instance
->use_seqnum_jbod_fp
= false;
5178 if (!megasas_sync_pd_seq_num(instance
, false) &&
5179 !megasas_sync_pd_seq_num(instance
, true))
5180 instance
->use_seqnum_jbod_fp
= true;
5182 instance
->use_seqnum_jbod_fp
= false;
5185 static void megasas_setup_reply_map(struct megasas_instance
*instance
)
5187 const struct cpumask
*mask
;
5188 unsigned int queue
, cpu
;
5190 for (queue
= 0; queue
< instance
->msix_vectors
; queue
++) {
5191 mask
= pci_irq_get_affinity(instance
->pdev
, queue
);
5195 for_each_cpu(cpu
, mask
)
5196 instance
->reply_map
[cpu
] = queue
;
5201 for_each_possible_cpu(cpu
)
5202 instance
->reply_map
[cpu
] = cpu
% instance
->msix_vectors
;
5206 * megasas_init_fw - Initializes the FW
5207 * @instance: Adapter soft state
5209 * This is the main function for initializing firmware
5212 static int megasas_init_fw(struct megasas_instance
*instance
)
5215 u32 max_sectors_2
, tmp_sectors
, msix_enable
;
5216 u32 scratch_pad_2
, scratch_pad_3
, scratch_pad_4
;
5217 resource_size_t base_addr
;
5218 struct megasas_register_set __iomem
*reg_set
;
5219 struct megasas_ctrl_info
*ctrl_info
= NULL
;
5220 unsigned long bar_list
;
5221 int i
, j
, loop
, fw_msix_count
= 0;
5222 struct IOV_111
*iovPtr
;
5223 struct fusion_context
*fusion
;
5225 fusion
= instance
->ctrl_context
;
5227 /* Find first memory bar */
5228 bar_list
= pci_select_bars(instance
->pdev
, IORESOURCE_MEM
);
5229 instance
->bar
= find_first_bit(&bar_list
, BITS_PER_LONG
);
5230 if (pci_request_selected_regions(instance
->pdev
, 1<<instance
->bar
,
5232 dev_printk(KERN_DEBUG
, &instance
->pdev
->dev
, "IO memory region busy!\n");
5236 base_addr
= pci_resource_start(instance
->pdev
, instance
->bar
);
5237 instance
->reg_set
= ioremap_nocache(base_addr
, 8192);
5239 if (!instance
->reg_set
) {
5240 dev_printk(KERN_DEBUG
, &instance
->pdev
->dev
, "Failed to map IO mem\n");
5244 reg_set
= instance
->reg_set
;
5246 if (instance
->adapter_type
!= MFI_SERIES
)
5247 instance
->instancet
= &megasas_instance_template_fusion
;
5249 switch (instance
->pdev
->device
) {
5250 case PCI_DEVICE_ID_LSI_SAS1078R
:
5251 case PCI_DEVICE_ID_LSI_SAS1078DE
:
5252 instance
->instancet
= &megasas_instance_template_ppc
;
5254 case PCI_DEVICE_ID_LSI_SAS1078GEN2
:
5255 case PCI_DEVICE_ID_LSI_SAS0079GEN2
:
5256 instance
->instancet
= &megasas_instance_template_gen2
;
5258 case PCI_DEVICE_ID_LSI_SAS0073SKINNY
:
5259 case PCI_DEVICE_ID_LSI_SAS0071SKINNY
:
5260 instance
->instancet
= &megasas_instance_template_skinny
;
5262 case PCI_DEVICE_ID_LSI_SAS1064R
:
5263 case PCI_DEVICE_ID_DELL_PERC5
:
5265 instance
->instancet
= &megasas_instance_template_xscale
;
5266 instance
->pd_list_not_supported
= 1;
5271 if (megasas_transition_to_ready(instance
, 0)) {
5272 atomic_set(&instance
->fw_reset_no_pci_access
, 1);
5273 instance
->instancet
->adp_reset
5274 (instance
, instance
->reg_set
);
5275 atomic_set(&instance
->fw_reset_no_pci_access
, 0);
5276 dev_info(&instance
->pdev
->dev
,
5277 "FW restarted successfully from %s!\n",
5280 /*waitting for about 30 second before retry*/
5283 if (megasas_transition_to_ready(instance
, 0))
5284 goto fail_ready_state
;
5287 megasas_init_ctrl_params(instance
);
5289 if (megasas_set_dma_mask(instance
))
5290 goto fail_ready_state
;
5292 if (megasas_alloc_ctrl_mem(instance
))
5293 goto fail_alloc_dma_buf
;
5295 if (megasas_alloc_ctrl_dma_buffers(instance
))
5296 goto fail_alloc_dma_buf
;
5298 fusion
= instance
->ctrl_context
;
5300 if (instance
->adapter_type
== VENTURA_SERIES
) {
5302 readl(&instance
->reg_set
->outbound_scratch_pad_3
);
5303 instance
->max_raid_mapsize
= ((scratch_pad_3
>>
5304 MR_MAX_RAID_MAP_SIZE_OFFSET_SHIFT
) &
5305 MR_MAX_RAID_MAP_SIZE_MASK
);
5308 /* Check if MSI-X is supported while in ready state */
5309 msix_enable
= (instance
->instancet
->read_fw_status_reg(reg_set
) &
5311 if (msix_enable
&& !msix_disable
) {
5312 int irq_flags
= PCI_IRQ_MSIX
;
5314 scratch_pad_2
= readl
5315 (&instance
->reg_set
->outbound_scratch_pad_2
);
5316 /* Check max MSI-X vectors */
5318 if (instance
->adapter_type
== THUNDERBOLT_SERIES
) {
5319 /* Thunderbolt Series*/
5320 instance
->msix_vectors
= (scratch_pad_2
5321 & MR_MAX_REPLY_QUEUES_OFFSET
) + 1;
5322 fw_msix_count
= instance
->msix_vectors
;
5323 } else { /* Invader series supports more than 8 MSI-x vectors*/
5324 instance
->msix_vectors
= ((scratch_pad_2
5325 & MR_MAX_REPLY_QUEUES_EXT_OFFSET
)
5326 >> MR_MAX_REPLY_QUEUES_EXT_OFFSET_SHIFT
) + 1;
5327 if (instance
->msix_vectors
> 16)
5328 instance
->msix_combined
= true;
5331 instance
->is_rdpq
= (scratch_pad_2
& MR_RDPQ_MODE_OFFSET
) ?
5333 fw_msix_count
= instance
->msix_vectors
;
5334 /* Save 1-15 reply post index address to local memory
5335 * Index 0 is already saved from reg offset
5336 * MPI2_REPLY_POST_HOST_INDEX_OFFSET
5338 for (loop
= 1; loop
< MR_MAX_MSIX_REG_ARRAY
; loop
++) {
5339 instance
->reply_post_host_index_addr
[loop
] =
5341 ((u8 __iomem
*)instance
->reg_set
+
5342 MPI2_SUP_REPLY_POST_HOST_INDEX_OFFSET
5347 instance
->msix_vectors
= min(msix_vectors
,
5348 instance
->msix_vectors
);
5349 } else /* MFI adapters */
5350 instance
->msix_vectors
= 1;
5351 /* Don't bother allocating more MSI-X vectors than cpus */
5352 instance
->msix_vectors
= min(instance
->msix_vectors
,
5353 (unsigned int)num_online_cpus());
5354 if (smp_affinity_enable
)
5355 irq_flags
|= PCI_IRQ_AFFINITY
;
5356 i
= pci_alloc_irq_vectors(instance
->pdev
, 1,
5357 instance
->msix_vectors
, irq_flags
);
5359 instance
->msix_vectors
= i
;
5361 instance
->msix_vectors
= 0;
5364 * MSI-X host index 0 is common for all adapter.
5365 * It is used for all MPT based Adapters.
5367 if (instance
->msix_combined
) {
5368 instance
->reply_post_host_index_addr
[0] =
5369 (u32
*)((u8
*)instance
->reg_set
+
5370 MPI2_SUP_REPLY_POST_HOST_INDEX_OFFSET
);
5372 instance
->reply_post_host_index_addr
[0] =
5373 (u32
*)((u8
*)instance
->reg_set
+
5374 MPI2_REPLY_POST_HOST_INDEX_OFFSET
);
5377 if (!instance
->msix_vectors
) {
5378 i
= pci_alloc_irq_vectors(instance
->pdev
, 1, 1, PCI_IRQ_LEGACY
);
5380 goto fail_setup_irqs
;
5383 megasas_setup_reply_map(instance
);
5385 dev_info(&instance
->pdev
->dev
,
5386 "firmware supports msix\t: (%d)", fw_msix_count
);
5387 dev_info(&instance
->pdev
->dev
,
5388 "current msix/online cpus\t: (%d/%d)\n",
5389 instance
->msix_vectors
, (unsigned int)num_online_cpus());
5390 dev_info(&instance
->pdev
->dev
,
5391 "RDPQ mode\t: (%s)\n", instance
->is_rdpq
? "enabled" : "disabled");
5393 tasklet_init(&instance
->isr_tasklet
, instance
->instancet
->tasklet
,
5394 (unsigned long)instance
);
5397 * Below are default value for legacy Firmware.
5398 * non-fusion based controllers
5400 instance
->fw_supported_vd_count
= MAX_LOGICAL_DRIVES
;
5401 instance
->fw_supported_pd_count
= MAX_PHYSICAL_DEVICES
;
5402 /* Get operational params, sge flags, send init cmd to controller */
5403 if (instance
->instancet
->init_adapter(instance
))
5404 goto fail_init_adapter
;
5406 if (instance
->adapter_type
== VENTURA_SERIES
) {
5408 readl(&instance
->reg_set
->outbound_scratch_pad_4
);
5409 if ((scratch_pad_4
& MR_NVME_PAGE_SIZE_MASK
) >=
5410 MR_DEFAULT_NVME_PAGE_SHIFT
)
5411 instance
->nvme_page_size
=
5412 (1 << (scratch_pad_4
& MR_NVME_PAGE_SIZE_MASK
));
5414 dev_info(&instance
->pdev
->dev
,
5415 "NVME page size\t: (%d)\n", instance
->nvme_page_size
);
5418 if (instance
->msix_vectors
?
5419 megasas_setup_irqs_msix(instance
, 1) :
5420 megasas_setup_irqs_ioapic(instance
))
5421 goto fail_init_adapter
;
5423 instance
->instancet
->enable_intr(instance
);
5425 dev_info(&instance
->pdev
->dev
, "INIT adapter done\n");
5427 megasas_setup_jbod_map(instance
);
5430 * the following function will get the PD LIST.
5432 memset(instance
->pd_list
, 0,
5433 (MEGASAS_MAX_PD
* sizeof(struct megasas_pd_list
)));
5434 if (megasas_get_pd_list(instance
) < 0) {
5435 dev_err(&instance
->pdev
->dev
, "failed to get PD list\n");
5436 goto fail_get_ld_pd_list
;
5439 memset(instance
->ld_ids
, 0xff, MEGASAS_MAX_LD_IDS
);
5441 /* stream detection initialization */
5442 if (instance
->adapter_type
== VENTURA_SERIES
) {
5443 fusion
->stream_detect_by_ld
=
5444 kcalloc(MAX_LOGICAL_DRIVES_EXT
,
5445 sizeof(struct LD_STREAM_DETECT
*),
5447 if (!fusion
->stream_detect_by_ld
) {
5448 dev_err(&instance
->pdev
->dev
,
5449 "unable to allocate stream detection for pool of LDs\n");
5450 goto fail_get_ld_pd_list
;
5452 for (i
= 0; i
< MAX_LOGICAL_DRIVES_EXT
; ++i
) {
5453 fusion
->stream_detect_by_ld
[i
] =
5454 kzalloc(sizeof(struct LD_STREAM_DETECT
),
5456 if (!fusion
->stream_detect_by_ld
[i
]) {
5457 dev_err(&instance
->pdev
->dev
,
5458 "unable to allocate stream detect by LD\n ");
5459 for (j
= 0; j
< i
; ++j
)
5460 kfree(fusion
->stream_detect_by_ld
[j
]);
5461 kfree(fusion
->stream_detect_by_ld
);
5462 fusion
->stream_detect_by_ld
= NULL
;
5463 goto fail_get_ld_pd_list
;
5465 fusion
->stream_detect_by_ld
[i
]->mru_bit_map
5470 if (megasas_ld_list_query(instance
,
5471 MR_LD_QUERY_TYPE_EXPOSED_TO_HOST
))
5472 goto fail_get_ld_pd_list
;
5475 * Compute the max allowed sectors per IO: The controller info has two
5476 * limits on max sectors. Driver should use the minimum of these two.
5478 * 1 << stripe_sz_ops.min = max sectors per strip
5480 * Note that older firmwares ( < FW ver 30) didn't report information
5481 * to calculate max_sectors_1. So the number ended up as zero always.
5484 ctrl_info
= instance
->ctrl_info_buf
;
5486 max_sectors_1
= (1 << ctrl_info
->stripe_sz_ops
.min
) *
5487 le16_to_cpu(ctrl_info
->max_strips_per_io
);
5488 max_sectors_2
= le32_to_cpu(ctrl_info
->max_request_size
);
5490 tmp_sectors
= min_t(u32
, max_sectors_1
, max_sectors_2
);
5492 instance
->peerIsPresent
= ctrl_info
->cluster
.peerIsPresent
;
5493 instance
->passive
= ctrl_info
->cluster
.passive
;
5494 memcpy(instance
->clusterId
, ctrl_info
->clusterId
, sizeof(instance
->clusterId
));
5495 instance
->UnevenSpanSupport
=
5496 ctrl_info
->adapterOperations2
.supportUnevenSpans
;
5497 if (instance
->UnevenSpanSupport
) {
5498 struct fusion_context
*fusion
= instance
->ctrl_context
;
5499 if (MR_ValidateMapInfo(instance
, instance
->map_id
))
5500 fusion
->fast_path_io
= 1;
5502 fusion
->fast_path_io
= 0;
5505 if (ctrl_info
->host_interface
.SRIOV
) {
5506 instance
->requestorId
= ctrl_info
->iov
.requestorId
;
5507 if (instance
->pdev
->device
== PCI_DEVICE_ID_LSI_PLASMA
) {
5508 if (!ctrl_info
->adapterOperations2
.activePassive
)
5509 instance
->PlasmaFW111
= 1;
5511 dev_info(&instance
->pdev
->dev
, "SR-IOV: firmware type: %s\n",
5512 instance
->PlasmaFW111
? "1.11" : "new");
5514 if (instance
->PlasmaFW111
) {
5515 iovPtr
= (struct IOV_111
*)
5516 ((unsigned char *)ctrl_info
+ IOV_111_OFFSET
);
5517 instance
->requestorId
= iovPtr
->requestorId
;
5520 dev_info(&instance
->pdev
->dev
, "SRIOV: VF requestorId %d\n",
5521 instance
->requestorId
);
5524 instance
->crash_dump_fw_support
=
5525 ctrl_info
->adapterOperations3
.supportCrashDump
;
5526 instance
->crash_dump_drv_support
=
5527 (instance
->crash_dump_fw_support
&&
5528 instance
->crash_dump_buf
);
5529 if (instance
->crash_dump_drv_support
)
5530 megasas_set_crash_dump_params(instance
,
5531 MR_CRASH_BUF_TURN_OFF
);
5534 if (instance
->crash_dump_buf
)
5535 dma_free_coherent(&instance
->pdev
->dev
,
5537 instance
->crash_dump_buf
,
5538 instance
->crash_dump_h
);
5539 instance
->crash_dump_buf
= NULL
;
5543 dev_info(&instance
->pdev
->dev
,
5544 "pci id\t\t: (0x%04x)/(0x%04x)/(0x%04x)/(0x%04x)\n",
5545 le16_to_cpu(ctrl_info
->pci
.vendor_id
),
5546 le16_to_cpu(ctrl_info
->pci
.device_id
),
5547 le16_to_cpu(ctrl_info
->pci
.sub_vendor_id
),
5548 le16_to_cpu(ctrl_info
->pci
.sub_device_id
));
5549 dev_info(&instance
->pdev
->dev
, "unevenspan support : %s\n",
5550 instance
->UnevenSpanSupport
? "yes" : "no");
5551 dev_info(&instance
->pdev
->dev
, "firmware crash dump : %s\n",
5552 instance
->crash_dump_drv_support
? "yes" : "no");
5553 dev_info(&instance
->pdev
->dev
, "jbod sync map : %s\n",
5554 instance
->use_seqnum_jbod_fp
? "yes" : "no");
5557 instance
->max_sectors_per_req
= instance
->max_num_sge
*
5558 SGE_BUFFER_SIZE
/ 512;
5559 if (tmp_sectors
&& (instance
->max_sectors_per_req
> tmp_sectors
))
5560 instance
->max_sectors_per_req
= tmp_sectors
;
5562 /* Check for valid throttlequeuedepth module parameter */
5563 if (throttlequeuedepth
&&
5564 throttlequeuedepth
<= instance
->max_scsi_cmds
)
5565 instance
->throttlequeuedepth
= throttlequeuedepth
;
5567 instance
->throttlequeuedepth
=
5568 MEGASAS_THROTTLE_QUEUE_DEPTH
;
5570 if ((resetwaittime
< 1) ||
5571 (resetwaittime
> MEGASAS_RESET_WAIT_TIME
))
5572 resetwaittime
= MEGASAS_RESET_WAIT_TIME
;
5574 if ((scmd_timeout
< 10) || (scmd_timeout
> MEGASAS_DEFAULT_CMD_TIMEOUT
))
5575 scmd_timeout
= MEGASAS_DEFAULT_CMD_TIMEOUT
;
5577 /* Launch SR-IOV heartbeat timer */
5578 if (instance
->requestorId
) {
5579 if (!megasas_sriov_start_heartbeat(instance
, 1))
5580 megasas_start_timer(instance
);
5582 instance
->skip_heartbeat_timer_del
= 1;
5587 fail_get_ld_pd_list
:
5588 instance
->instancet
->disable_intr(instance
);
5590 megasas_destroy_irqs(instance
);
5592 if (instance
->msix_vectors
)
5593 pci_free_irq_vectors(instance
->pdev
);
5594 instance
->msix_vectors
= 0;
5596 megasas_free_ctrl_dma_buffers(instance
);
5597 megasas_free_ctrl_mem(instance
);
5599 iounmap(instance
->reg_set
);
5602 pci_release_selected_regions(instance
->pdev
, 1<<instance
->bar
);
5604 dev_err(&instance
->pdev
->dev
, "Failed from %s %d\n",
5605 __func__
, __LINE__
);
5610 * megasas_release_mfi - Reverses the FW initialization
5611 * @instance: Adapter soft state
5613 static void megasas_release_mfi(struct megasas_instance
*instance
)
5615 u32 reply_q_sz
= sizeof(u32
) *(instance
->max_mfi_cmds
+ 1);
5617 if (instance
->reply_queue
)
5618 dma_free_coherent(&instance
->pdev
->dev
, reply_q_sz
,
5619 instance
->reply_queue
, instance
->reply_queue_h
);
5621 megasas_free_cmds(instance
);
5623 iounmap(instance
->reg_set
);
5625 pci_release_selected_regions(instance
->pdev
, 1<<instance
->bar
);
5629 * megasas_get_seq_num - Gets latest event sequence numbers
5630 * @instance: Adapter soft state
5631 * @eli: FW event log sequence numbers information
5633 * FW maintains a log of all events in a non-volatile area. Upper layers would
5634 * usually find out the latest sequence number of the events, the seq number at
5635 * the boot etc. They would "read" all the events below the latest seq number
5636 * by issuing a direct fw cmd (DCMD). For the future events (beyond latest seq
5637 * number), they would subsribe to AEN (asynchronous event notification) and
5638 * wait for the events to happen.
5641 megasas_get_seq_num(struct megasas_instance
*instance
,
5642 struct megasas_evt_log_info
*eli
)
5644 struct megasas_cmd
*cmd
;
5645 struct megasas_dcmd_frame
*dcmd
;
5646 struct megasas_evt_log_info
*el_info
;
5647 dma_addr_t el_info_h
= 0;
5650 cmd
= megasas_get_cmd(instance
);
5656 dcmd
= &cmd
->frame
->dcmd
;
5657 el_info
= dma_zalloc_coherent(&instance
->pdev
->dev
,
5658 sizeof(struct megasas_evt_log_info
), &el_info_h
,
5661 megasas_return_cmd(instance
, cmd
);
5665 memset(dcmd
->mbox
.b
, 0, MFI_MBOX_SIZE
);
5667 dcmd
->cmd
= MFI_CMD_DCMD
;
5668 dcmd
->cmd_status
= 0x0;
5669 dcmd
->sge_count
= 1;
5670 dcmd
->flags
= MFI_FRAME_DIR_READ
;
5673 dcmd
->data_xfer_len
= cpu_to_le32(sizeof(struct megasas_evt_log_info
));
5674 dcmd
->opcode
= cpu_to_le32(MR_DCMD_CTRL_EVENT_GET_INFO
);
5676 megasas_set_dma_settings(instance
, dcmd
, el_info_h
,
5677 sizeof(struct megasas_evt_log_info
));
5679 ret
= megasas_issue_blocked_cmd(instance
, cmd
, MFI_IO_TIMEOUT_SECS
);
5680 if (ret
!= DCMD_SUCCESS
) {
5681 dev_err(&instance
->pdev
->dev
, "Failed from %s %d\n",
5682 __func__
, __LINE__
);
5687 * Copy the data back into callers buffer
5689 eli
->newest_seq_num
= el_info
->newest_seq_num
;
5690 eli
->oldest_seq_num
= el_info
->oldest_seq_num
;
5691 eli
->clear_seq_num
= el_info
->clear_seq_num
;
5692 eli
->shutdown_seq_num
= el_info
->shutdown_seq_num
;
5693 eli
->boot_seq_num
= el_info
->boot_seq_num
;
5696 dma_free_coherent(&instance
->pdev
->dev
,
5697 sizeof(struct megasas_evt_log_info
),
5698 el_info
, el_info_h
);
5700 megasas_return_cmd(instance
, cmd
);
5706 * megasas_register_aen - Registers for asynchronous event notification
5707 * @instance: Adapter soft state
5708 * @seq_num: The starting sequence number
5709 * @class_locale: Class of the event
5711 * This function subscribes for AEN for events beyond the @seq_num. It requests
5712 * to be notified if and only if the event is of type @class_locale
5715 megasas_register_aen(struct megasas_instance
*instance
, u32 seq_num
,
5716 u32 class_locale_word
)
5719 struct megasas_cmd
*cmd
;
5720 struct megasas_dcmd_frame
*dcmd
;
5721 union megasas_evt_class_locale curr_aen
;
5722 union megasas_evt_class_locale prev_aen
;
5725 * If there an AEN pending already (aen_cmd), check if the
5726 * class_locale of that pending AEN is inclusive of the new
5727 * AEN request we currently have. If it is, then we don't have
5728 * to do anything. In other words, whichever events the current
5729 * AEN request is subscribing to, have already been subscribed
5732 * If the old_cmd is _not_ inclusive, then we have to abort
5733 * that command, form a class_locale that is superset of both
5734 * old and current and re-issue to the FW
5737 curr_aen
.word
= class_locale_word
;
5739 if (instance
->aen_cmd
) {
5742 le32_to_cpu(instance
->aen_cmd
->frame
->dcmd
.mbox
.w
[1]);
5744 if ((curr_aen
.members
.class < MFI_EVT_CLASS_DEBUG
) ||
5745 (curr_aen
.members
.class > MFI_EVT_CLASS_DEAD
)) {
5746 dev_info(&instance
->pdev
->dev
,
5747 "%s %d out of range class %d send by application\n",
5748 __func__
, __LINE__
, curr_aen
.members
.class);
5753 * A class whose enum value is smaller is inclusive of all
5754 * higher values. If a PROGRESS (= -1) was previously
5755 * registered, then a new registration requests for higher
5756 * classes need not be sent to FW. They are automatically
5759 * Locale numbers don't have such hierarchy. They are bitmap
5762 if ((prev_aen
.members
.class <= curr_aen
.members
.class) &&
5763 !((prev_aen
.members
.locale
& curr_aen
.members
.locale
) ^
5764 curr_aen
.members
.locale
)) {
5766 * Previously issued event registration includes
5767 * current request. Nothing to do.
5771 curr_aen
.members
.locale
|= prev_aen
.members
.locale
;
5773 if (prev_aen
.members
.class < curr_aen
.members
.class)
5774 curr_aen
.members
.class = prev_aen
.members
.class;
5776 instance
->aen_cmd
->abort_aen
= 1;
5777 ret_val
= megasas_issue_blocked_abort_cmd(instance
,
5782 dev_printk(KERN_DEBUG
, &instance
->pdev
->dev
, "Failed to abort "
5783 "previous AEN command\n");
5789 cmd
= megasas_get_cmd(instance
);
5794 dcmd
= &cmd
->frame
->dcmd
;
5796 memset(instance
->evt_detail
, 0, sizeof(struct megasas_evt_detail
));
5799 * Prepare DCMD for aen registration
5801 memset(dcmd
->mbox
.b
, 0, MFI_MBOX_SIZE
);
5803 dcmd
->cmd
= MFI_CMD_DCMD
;
5804 dcmd
->cmd_status
= 0x0;
5805 dcmd
->sge_count
= 1;
5806 dcmd
->flags
= MFI_FRAME_DIR_READ
;
5809 dcmd
->data_xfer_len
= cpu_to_le32(sizeof(struct megasas_evt_detail
));
5810 dcmd
->opcode
= cpu_to_le32(MR_DCMD_CTRL_EVENT_WAIT
);
5811 dcmd
->mbox
.w
[0] = cpu_to_le32(seq_num
);
5812 instance
->last_seq_num
= seq_num
;
5813 dcmd
->mbox
.w
[1] = cpu_to_le32(curr_aen
.word
);
5815 megasas_set_dma_settings(instance
, dcmd
, instance
->evt_detail_h
,
5816 sizeof(struct megasas_evt_detail
));
5818 if (instance
->aen_cmd
!= NULL
) {
5819 megasas_return_cmd(instance
, cmd
);
5824 * Store reference to the cmd used to register for AEN. When an
5825 * application wants us to register for AEN, we have to abort this
5826 * cmd and re-register with a new EVENT LOCALE supplied by that app
5828 instance
->aen_cmd
= cmd
;
5831 * Issue the aen registration frame
5833 instance
->instancet
->issue_dcmd(instance
, cmd
);
5838 /* megasas_get_target_prop - Send DCMD with below details to firmware.
5840 * This DCMD will fetch few properties of LD/system PD defined
5841 * in MR_TARGET_DEV_PROPERTIES. eg. Queue Depth, MDTS value.
5843 * DCMD send by drivers whenever new target is added to the OS.
5845 * dcmd.opcode - MR_DCMD_DEV_GET_TARGET_PROP
5846 * dcmd.mbox.b[0] - DCMD is to be fired for LD or system PD.
5847 * 0 = system PD, 1 = LD.
5848 * dcmd.mbox.s[1] - TargetID for LD/system PD.
5849 * dcmd.sge IN - Pointer to return MR_TARGET_DEV_PROPERTIES.
5851 * @instance: Adapter soft state
5852 * @sdev: OS provided scsi device
5854 * Returns 0 on success non-zero on failure.
5857 megasas_get_target_prop(struct megasas_instance
*instance
,
5858 struct scsi_device
*sdev
)
5861 struct megasas_cmd
*cmd
;
5862 struct megasas_dcmd_frame
*dcmd
;
5863 u16 targetId
= (sdev
->channel
% 2) + sdev
->id
;
5865 cmd
= megasas_get_cmd(instance
);
5868 dev_err(&instance
->pdev
->dev
,
5869 "Failed to get cmd %s\n", __func__
);
5873 dcmd
= &cmd
->frame
->dcmd
;
5875 memset(instance
->tgt_prop
, 0, sizeof(*instance
->tgt_prop
));
5876 memset(dcmd
->mbox
.b
, 0, MFI_MBOX_SIZE
);
5877 dcmd
->mbox
.b
[0] = MEGASAS_IS_LOGICAL(sdev
);
5879 dcmd
->mbox
.s
[1] = cpu_to_le16(targetId
);
5880 dcmd
->cmd
= MFI_CMD_DCMD
;
5881 dcmd
->cmd_status
= 0xFF;
5882 dcmd
->sge_count
= 1;
5883 dcmd
->flags
= MFI_FRAME_DIR_READ
;
5886 dcmd
->data_xfer_len
=
5887 cpu_to_le32(sizeof(struct MR_TARGET_PROPERTIES
));
5888 dcmd
->opcode
= cpu_to_le32(MR_DCMD_DRV_GET_TARGET_PROP
);
5890 megasas_set_dma_settings(instance
, dcmd
, instance
->tgt_prop_h
,
5891 sizeof(struct MR_TARGET_PROPERTIES
));
5893 if ((instance
->adapter_type
!= MFI_SERIES
) &&
5894 !instance
->mask_interrupts
)
5895 ret
= megasas_issue_blocked_cmd(instance
,
5896 cmd
, MFI_IO_TIMEOUT_SECS
);
5898 ret
= megasas_issue_polled(instance
, cmd
);
5902 switch (dcmd_timeout_ocr_possible(instance
)) {
5904 cmd
->flags
|= DRV_DCMD_SKIP_REFIRE
;
5905 megasas_reset_fusion(instance
->host
,
5906 MFI_IO_TIMEOUT_OCR
);
5909 megaraid_sas_kill_hba(instance
);
5911 case IGNORE_TIMEOUT
:
5912 dev_info(&instance
->pdev
->dev
,
5913 "Ignore DCMD timeout: %s %d\n",
5914 __func__
, __LINE__
);
5920 megasas_return_cmd(instance
, cmd
);
5922 if (ret
!= DCMD_SUCCESS
)
5923 dev_err(&instance
->pdev
->dev
,
5924 "return from %s %d return value %d\n",
5925 __func__
, __LINE__
, ret
);
5931 * megasas_start_aen - Subscribes to AEN during driver load time
5932 * @instance: Adapter soft state
5934 static int megasas_start_aen(struct megasas_instance
*instance
)
5936 struct megasas_evt_log_info eli
;
5937 union megasas_evt_class_locale class_locale
;
5940 * Get the latest sequence number from FW
5942 memset(&eli
, 0, sizeof(eli
));
5944 if (megasas_get_seq_num(instance
, &eli
))
5948 * Register AEN with FW for latest sequence number plus 1
5950 class_locale
.members
.reserved
= 0;
5951 class_locale
.members
.locale
= MR_EVT_LOCALE_ALL
;
5952 class_locale
.members
.class = MR_EVT_CLASS_DEBUG
;
5954 return megasas_register_aen(instance
,
5955 le32_to_cpu(eli
.newest_seq_num
) + 1,
5960 * megasas_io_attach - Attaches this driver to SCSI mid-layer
5961 * @instance: Adapter soft state
5963 static int megasas_io_attach(struct megasas_instance
*instance
)
5965 struct Scsi_Host
*host
= instance
->host
;
5968 * Export parameters required by SCSI mid-layer
5970 host
->unique_id
= instance
->unique_id
;
5971 host
->can_queue
= instance
->max_scsi_cmds
;
5972 host
->this_id
= instance
->init_id
;
5973 host
->sg_tablesize
= instance
->max_num_sge
;
5975 if (instance
->fw_support_ieee
)
5976 instance
->max_sectors_per_req
= MEGASAS_MAX_SECTORS_IEEE
;
5979 * Check if the module parameter value for max_sectors can be used
5981 if (max_sectors
&& max_sectors
< instance
->max_sectors_per_req
)
5982 instance
->max_sectors_per_req
= max_sectors
;
5985 if (((instance
->pdev
->device
==
5986 PCI_DEVICE_ID_LSI_SAS1078GEN2
) ||
5987 (instance
->pdev
->device
==
5988 PCI_DEVICE_ID_LSI_SAS0079GEN2
)) &&
5989 (max_sectors
<= MEGASAS_MAX_SECTORS
)) {
5990 instance
->max_sectors_per_req
= max_sectors
;
5992 dev_info(&instance
->pdev
->dev
, "max_sectors should be > 0"
5993 "and <= %d (or < 1MB for GEN2 controller)\n",
5994 instance
->max_sectors_per_req
);
5999 host
->max_sectors
= instance
->max_sectors_per_req
;
6000 host
->cmd_per_lun
= MEGASAS_DEFAULT_CMD_PER_LUN
;
6001 host
->max_channel
= MEGASAS_MAX_CHANNELS
- 1;
6002 host
->max_id
= MEGASAS_MAX_DEV_PER_CHANNEL
;
6003 host
->max_lun
= MEGASAS_MAX_LUN
;
6004 host
->max_cmd_len
= 16;
6007 * Notify the mid-layer about the new controller
6009 if (scsi_add_host(host
, &instance
->pdev
->dev
)) {
6010 dev_err(&instance
->pdev
->dev
,
6011 "Failed to add host from %s %d\n",
6012 __func__
, __LINE__
);
6020 * megasas_set_dma_mask - Set DMA mask for supported controllers
6022 * @instance: Adapter soft state
6025 * For Ventura, driver/FW will operate in 64bit DMA addresses.
6028 * By default, driver/FW will operate in 32bit DMA addresses
6029 * for consistent DMA mapping but if 32 bit consistent
6030 * DMA mask fails, driver will try with 64 bit consistent
6031 * mask provided FW is true 64bit DMA capable
6033 * For older controllers(Thunderbolt and MFI based adapters)-
6034 * driver/FW will operate in 32 bit consistent DMA addresses.
6037 megasas_set_dma_mask(struct megasas_instance
*instance
)
6039 u64 consistent_mask
;
6040 struct pci_dev
*pdev
;
6043 pdev
= instance
->pdev
;
6044 consistent_mask
= (instance
->adapter_type
== VENTURA_SERIES
) ?
6045 DMA_BIT_MASK(64) : DMA_BIT_MASK(32);
6048 if (dma_set_mask(&pdev
->dev
, DMA_BIT_MASK(64)) &&
6049 dma_set_mask_and_coherent(&pdev
->dev
, DMA_BIT_MASK(32)))
6050 goto fail_set_dma_mask
;
6052 if ((*pdev
->dev
.dma_mask
== DMA_BIT_MASK(64)) &&
6053 (dma_set_coherent_mask(&pdev
->dev
, consistent_mask
) &&
6054 dma_set_mask_and_coherent(&pdev
->dev
, DMA_BIT_MASK(32)))) {
6056 * If 32 bit DMA mask fails, then try for 64 bit mask
6057 * for FW capable of handling 64 bit DMA.
6059 scratch_pad_2
= readl
6060 (&instance
->reg_set
->outbound_scratch_pad_2
);
6062 if (!(scratch_pad_2
& MR_CAN_HANDLE_64_BIT_DMA_OFFSET
))
6063 goto fail_set_dma_mask
;
6064 else if (dma_set_mask_and_coherent(&pdev
->dev
,
6066 goto fail_set_dma_mask
;
6068 } else if (dma_set_mask_and_coherent(&pdev
->dev
, DMA_BIT_MASK(32)))
6069 goto fail_set_dma_mask
;
6071 if (pdev
->dev
.coherent_dma_mask
== DMA_BIT_MASK(32))
6072 instance
->consistent_mask_64bit
= false;
6074 instance
->consistent_mask_64bit
= true;
6076 dev_info(&pdev
->dev
, "%s bit DMA mask and %s bit consistent mask\n",
6077 ((*pdev
->dev
.dma_mask
== DMA_BIT_MASK(64)) ? "64" : "32"),
6078 (instance
->consistent_mask_64bit
? "64" : "32"));
6083 dev_err(&pdev
->dev
, "Failed to set DMA mask\n");
6089 * megasas_set_adapter_type - Set adapter type.
6090 * Supported controllers can be divided in
6091 * 4 categories- enum MR_ADAPTER_TYPE {
6093 * THUNDERBOLT_SERIES = 2,
6094 * INVADER_SERIES = 3,
6095 * VENTURA_SERIES = 4,
6097 * @instance: Adapter soft state
6100 static inline void megasas_set_adapter_type(struct megasas_instance
*instance
)
6102 if ((instance
->pdev
->vendor
== PCI_VENDOR_ID_DELL
) &&
6103 (instance
->pdev
->device
== PCI_DEVICE_ID_DELL_PERC5
)) {
6104 instance
->adapter_type
= MFI_SERIES
;
6106 switch (instance
->pdev
->device
) {
6107 case PCI_DEVICE_ID_LSI_VENTURA
:
6108 case PCI_DEVICE_ID_LSI_CRUSADER
:
6109 case PCI_DEVICE_ID_LSI_HARPOON
:
6110 case PCI_DEVICE_ID_LSI_TOMCAT
:
6111 case PCI_DEVICE_ID_LSI_VENTURA_4PORT
:
6112 case PCI_DEVICE_ID_LSI_CRUSADER_4PORT
:
6113 instance
->adapter_type
= VENTURA_SERIES
;
6115 case PCI_DEVICE_ID_LSI_FUSION
:
6116 case PCI_DEVICE_ID_LSI_PLASMA
:
6117 instance
->adapter_type
= THUNDERBOLT_SERIES
;
6119 case PCI_DEVICE_ID_LSI_INVADER
:
6120 case PCI_DEVICE_ID_LSI_INTRUDER
:
6121 case PCI_DEVICE_ID_LSI_INTRUDER_24
:
6122 case PCI_DEVICE_ID_LSI_CUTLASS_52
:
6123 case PCI_DEVICE_ID_LSI_CUTLASS_53
:
6124 case PCI_DEVICE_ID_LSI_FURY
:
6125 instance
->adapter_type
= INVADER_SERIES
;
6127 default: /* For all other supported controllers */
6128 instance
->adapter_type
= MFI_SERIES
;
6134 static inline int megasas_alloc_mfi_ctrl_mem(struct megasas_instance
*instance
)
6136 instance
->producer
= dma_alloc_coherent(&instance
->pdev
->dev
,
6137 sizeof(u32
), &instance
->producer_h
, GFP_KERNEL
);
6138 instance
->consumer
= dma_alloc_coherent(&instance
->pdev
->dev
,
6139 sizeof(u32
), &instance
->consumer_h
, GFP_KERNEL
);
6141 if (!instance
->producer
|| !instance
->consumer
) {
6142 dev_err(&instance
->pdev
->dev
,
6143 "Failed to allocate memory for producer, consumer\n");
6147 *instance
->producer
= 0;
6148 *instance
->consumer
= 0;
6153 * megasas_alloc_ctrl_mem - Allocate per controller memory for core data
6154 * structures which are not common across MFI
6155 * adapters and fusion adapters.
6156 * For MFI based adapters, allocate producer and
6157 * consumer buffers. For fusion adapters, allocate
6158 * memory for fusion context.
6159 * @instance: Adapter soft state
6160 * return: 0 for SUCCESS
6162 static int megasas_alloc_ctrl_mem(struct megasas_instance
*instance
)
6164 instance
->reply_map
= kcalloc(nr_cpu_ids
, sizeof(unsigned int),
6166 if (!instance
->reply_map
)
6169 switch (instance
->adapter_type
) {
6171 if (megasas_alloc_mfi_ctrl_mem(instance
))
6174 case VENTURA_SERIES
:
6175 case THUNDERBOLT_SERIES
:
6176 case INVADER_SERIES
:
6177 if (megasas_alloc_fusion_context(instance
))
6184 kfree(instance
->reply_map
);
6185 instance
->reply_map
= NULL
;
6190 * megasas_free_ctrl_mem - Free fusion context for fusion adapters and
6191 * producer, consumer buffers for MFI adapters
6193 * @instance - Adapter soft instance
6196 static inline void megasas_free_ctrl_mem(struct megasas_instance
*instance
)
6198 kfree(instance
->reply_map
);
6199 if (instance
->adapter_type
== MFI_SERIES
) {
6200 if (instance
->producer
)
6201 dma_free_coherent(&instance
->pdev
->dev
, sizeof(u32
),
6203 instance
->producer_h
);
6204 if (instance
->consumer
)
6205 dma_free_coherent(&instance
->pdev
->dev
, sizeof(u32
),
6207 instance
->consumer_h
);
6209 megasas_free_fusion_context(instance
);
6214 * megasas_alloc_ctrl_dma_buffers - Allocate consistent DMA buffers during
6217 * @instance- Adapter soft instance
6218 * @return- O for SUCCESS
6221 int megasas_alloc_ctrl_dma_buffers(struct megasas_instance
*instance
)
6223 struct pci_dev
*pdev
= instance
->pdev
;
6224 struct fusion_context
*fusion
= instance
->ctrl_context
;
6226 instance
->evt_detail
= dma_alloc_coherent(&pdev
->dev
,
6227 sizeof(struct megasas_evt_detail
),
6228 &instance
->evt_detail_h
, GFP_KERNEL
);
6230 if (!instance
->evt_detail
) {
6231 dev_err(&instance
->pdev
->dev
,
6232 "Failed to allocate event detail buffer\n");
6237 fusion
->ioc_init_request
=
6238 dma_alloc_coherent(&pdev
->dev
,
6239 sizeof(struct MPI2_IOC_INIT_REQUEST
),
6240 &fusion
->ioc_init_request_phys
,
6243 if (!fusion
->ioc_init_request
) {
6245 "Failed to allocate PD list buffer\n");
6250 instance
->pd_list_buf
=
6251 dma_alloc_coherent(&pdev
->dev
,
6252 MEGASAS_MAX_PD
* sizeof(struct MR_PD_LIST
),
6253 &instance
->pd_list_buf_h
, GFP_KERNEL
);
6255 if (!instance
->pd_list_buf
) {
6256 dev_err(&pdev
->dev
, "Failed to allocate PD list buffer\n");
6260 instance
->ctrl_info_buf
=
6261 dma_alloc_coherent(&pdev
->dev
,
6262 sizeof(struct megasas_ctrl_info
),
6263 &instance
->ctrl_info_buf_h
, GFP_KERNEL
);
6265 if (!instance
->ctrl_info_buf
) {
6267 "Failed to allocate controller info buffer\n");
6271 instance
->ld_list_buf
=
6272 dma_alloc_coherent(&pdev
->dev
,
6273 sizeof(struct MR_LD_LIST
),
6274 &instance
->ld_list_buf_h
, GFP_KERNEL
);
6276 if (!instance
->ld_list_buf
) {
6277 dev_err(&pdev
->dev
, "Failed to allocate LD list buffer\n");
6281 instance
->ld_targetid_list_buf
=
6282 dma_alloc_coherent(&pdev
->dev
,
6283 sizeof(struct MR_LD_TARGETID_LIST
),
6284 &instance
->ld_targetid_list_buf_h
, GFP_KERNEL
);
6286 if (!instance
->ld_targetid_list_buf
) {
6288 "Failed to allocate LD targetid list buffer\n");
6292 if (!reset_devices
) {
6293 instance
->system_info_buf
=
6294 dma_alloc_coherent(&pdev
->dev
,
6295 sizeof(struct MR_DRV_SYSTEM_INFO
),
6296 &instance
->system_info_h
, GFP_KERNEL
);
6298 dma_alloc_coherent(&pdev
->dev
,
6299 sizeof(struct MR_PD_INFO
),
6300 &instance
->pd_info_h
, GFP_KERNEL
);
6301 instance
->tgt_prop
=
6302 dma_alloc_coherent(&pdev
->dev
,
6303 sizeof(struct MR_TARGET_PROPERTIES
),
6304 &instance
->tgt_prop_h
, GFP_KERNEL
);
6305 instance
->crash_dump_buf
=
6306 dma_alloc_coherent(&pdev
->dev
, CRASH_DMA_BUF_SIZE
,
6307 &instance
->crash_dump_h
, GFP_KERNEL
);
6309 if (!instance
->system_info_buf
)
6310 dev_err(&instance
->pdev
->dev
,
6311 "Failed to allocate system info buffer\n");
6313 if (!instance
->pd_info
)
6314 dev_err(&instance
->pdev
->dev
,
6315 "Failed to allocate pd_info buffer\n");
6317 if (!instance
->tgt_prop
)
6318 dev_err(&instance
->pdev
->dev
,
6319 "Failed to allocate tgt_prop buffer\n");
6321 if (!instance
->crash_dump_buf
)
6322 dev_err(&instance
->pdev
->dev
,
6323 "Failed to allocate crash dump buffer\n");
6330 * megasas_free_ctrl_dma_buffers - Free consistent DMA buffers allocated
6331 * during driver load time
6333 * @instance- Adapter soft instance
6337 void megasas_free_ctrl_dma_buffers(struct megasas_instance
*instance
)
6339 struct pci_dev
*pdev
= instance
->pdev
;
6340 struct fusion_context
*fusion
= instance
->ctrl_context
;
6342 if (instance
->evt_detail
)
6343 dma_free_coherent(&pdev
->dev
, sizeof(struct megasas_evt_detail
),
6344 instance
->evt_detail
,
6345 instance
->evt_detail_h
);
6347 if (fusion
&& fusion
->ioc_init_request
)
6348 dma_free_coherent(&pdev
->dev
,
6349 sizeof(struct MPI2_IOC_INIT_REQUEST
),
6350 fusion
->ioc_init_request
,
6351 fusion
->ioc_init_request_phys
);
6353 if (instance
->pd_list_buf
)
6354 dma_free_coherent(&pdev
->dev
,
6355 MEGASAS_MAX_PD
* sizeof(struct MR_PD_LIST
),
6356 instance
->pd_list_buf
,
6357 instance
->pd_list_buf_h
);
6359 if (instance
->ld_list_buf
)
6360 dma_free_coherent(&pdev
->dev
, sizeof(struct MR_LD_LIST
),
6361 instance
->ld_list_buf
,
6362 instance
->ld_list_buf_h
);
6364 if (instance
->ld_targetid_list_buf
)
6365 dma_free_coherent(&pdev
->dev
, sizeof(struct MR_LD_TARGETID_LIST
),
6366 instance
->ld_targetid_list_buf
,
6367 instance
->ld_targetid_list_buf_h
);
6369 if (instance
->ctrl_info_buf
)
6370 dma_free_coherent(&pdev
->dev
, sizeof(struct megasas_ctrl_info
),
6371 instance
->ctrl_info_buf
,
6372 instance
->ctrl_info_buf_h
);
6374 if (instance
->system_info_buf
)
6375 dma_free_coherent(&pdev
->dev
, sizeof(struct MR_DRV_SYSTEM_INFO
),
6376 instance
->system_info_buf
,
6377 instance
->system_info_h
);
6379 if (instance
->pd_info
)
6380 dma_free_coherent(&pdev
->dev
, sizeof(struct MR_PD_INFO
),
6381 instance
->pd_info
, instance
->pd_info_h
);
6383 if (instance
->tgt_prop
)
6384 dma_free_coherent(&pdev
->dev
, sizeof(struct MR_TARGET_PROPERTIES
),
6385 instance
->tgt_prop
, instance
->tgt_prop_h
);
6387 if (instance
->crash_dump_buf
)
6388 dma_free_coherent(&pdev
->dev
, CRASH_DMA_BUF_SIZE
,
6389 instance
->crash_dump_buf
,
6390 instance
->crash_dump_h
);
6394 * megasas_init_ctrl_params - Initialize controller's instance
6395 * parameters before FW init
6396 * @instance - Adapter soft instance
6399 static inline void megasas_init_ctrl_params(struct megasas_instance
*instance
)
6401 instance
->fw_crash_state
= UNAVAILABLE
;
6403 megasas_poll_wait_aen
= 0;
6404 instance
->issuepend_done
= 1;
6405 atomic_set(&instance
->adprecovery
, MEGASAS_HBA_OPERATIONAL
);
6408 * Initialize locks and queues
6410 INIT_LIST_HEAD(&instance
->cmd_pool
);
6411 INIT_LIST_HEAD(&instance
->internal_reset_pending_q
);
6413 atomic_set(&instance
->fw_outstanding
, 0);
6415 init_waitqueue_head(&instance
->int_cmd_wait_q
);
6416 init_waitqueue_head(&instance
->abort_cmd_wait_q
);
6418 spin_lock_init(&instance
->crashdump_lock
);
6419 spin_lock_init(&instance
->mfi_pool_lock
);
6420 spin_lock_init(&instance
->hba_lock
);
6421 spin_lock_init(&instance
->stream_lock
);
6422 spin_lock_init(&instance
->completion_lock
);
6424 mutex_init(&instance
->reset_mutex
);
6426 if ((instance
->pdev
->device
== PCI_DEVICE_ID_LSI_SAS0073SKINNY
) ||
6427 (instance
->pdev
->device
== PCI_DEVICE_ID_LSI_SAS0071SKINNY
))
6428 instance
->flag_ieee
= 1;
6430 megasas_dbg_lvl
= 0;
6432 instance
->unload
= 1;
6433 instance
->last_time
= 0;
6434 instance
->disableOnlineCtrlReset
= 1;
6435 instance
->UnevenSpanSupport
= 0;
6437 if (instance
->adapter_type
!= MFI_SERIES
) {
6438 INIT_WORK(&instance
->work_init
, megasas_fusion_ocr_wq
);
6439 INIT_WORK(&instance
->crash_init
, megasas_fusion_crash_dump_wq
);
6441 INIT_WORK(&instance
->work_init
, process_fw_state_change_wq
);
6446 * megasas_probe_one - PCI hotplug entry point
6447 * @pdev: PCI device structure
6448 * @id: PCI ids of supported hotplugged adapter
6450 static int megasas_probe_one(struct pci_dev
*pdev
,
6451 const struct pci_device_id
*id
)
6454 struct Scsi_Host
*host
;
6455 struct megasas_instance
*instance
;
6458 /* Reset MSI-X in the kdump kernel */
6459 if (reset_devices
) {
6460 pos
= pci_find_capability(pdev
, PCI_CAP_ID_MSIX
);
6462 pci_read_config_word(pdev
, pos
+ PCI_MSIX_FLAGS
,
6464 if (control
& PCI_MSIX_FLAGS_ENABLE
) {
6465 dev_info(&pdev
->dev
, "resetting MSI-X\n");
6466 pci_write_config_word(pdev
,
6467 pos
+ PCI_MSIX_FLAGS
,
6469 ~PCI_MSIX_FLAGS_ENABLE
);
6475 * PCI prepping: enable device set bus mastering and dma mask
6477 rval
= pci_enable_device_mem(pdev
);
6483 pci_set_master(pdev
);
6485 host
= scsi_host_alloc(&megasas_template
,
6486 sizeof(struct megasas_instance
));
6489 dev_printk(KERN_DEBUG
, &pdev
->dev
, "scsi_host_alloc failed\n");
6490 goto fail_alloc_instance
;
6493 instance
= (struct megasas_instance
*)host
->hostdata
;
6494 memset(instance
, 0, sizeof(*instance
));
6495 atomic_set(&instance
->fw_reset_no_pci_access
, 0);
6498 * Initialize PCI related and misc parameters
6500 instance
->pdev
= pdev
;
6501 instance
->host
= host
;
6502 instance
->unique_id
= pdev
->bus
->number
<< 8 | pdev
->devfn
;
6503 instance
->init_id
= MEGASAS_DEFAULT_INIT_ID
;
6505 megasas_set_adapter_type(instance
);
6508 * Initialize MFI Firmware
6510 if (megasas_init_fw(instance
))
6513 if (instance
->requestorId
) {
6514 if (instance
->PlasmaFW111
) {
6515 instance
->vf_affiliation_111
=
6516 dma_alloc_coherent(&pdev
->dev
,
6517 sizeof(struct MR_LD_VF_AFFILIATION_111
),
6518 &instance
->vf_affiliation_111_h
,
6520 if (!instance
->vf_affiliation_111
)
6521 dev_warn(&pdev
->dev
, "Can't allocate "
6522 "memory for VF affiliation buffer\n");
6524 instance
->vf_affiliation
=
6525 dma_alloc_coherent(&pdev
->dev
,
6526 (MAX_LOGICAL_DRIVES
+ 1) *
6527 sizeof(struct MR_LD_VF_AFFILIATION
),
6528 &instance
->vf_affiliation_h
,
6530 if (!instance
->vf_affiliation
)
6531 dev_warn(&pdev
->dev
, "Can't allocate "
6532 "memory for VF affiliation buffer\n");
6537 * Store instance in PCI softstate
6539 pci_set_drvdata(pdev
, instance
);
6542 * Add this controller to megasas_mgmt_info structure so that it
6543 * can be exported to management applications
6545 megasas_mgmt_info
.count
++;
6546 megasas_mgmt_info
.instance
[megasas_mgmt_info
.max_index
] = instance
;
6547 megasas_mgmt_info
.max_index
++;
6550 * Register with SCSI mid-layer
6552 if (megasas_io_attach(instance
))
6553 goto fail_io_attach
;
6555 instance
->unload
= 0;
6557 * Trigger SCSI to scan our drives
6559 scsi_scan_host(host
);
6562 * Initiate AEN (Asynchronous Event Notification)
6564 if (megasas_start_aen(instance
)) {
6565 dev_printk(KERN_DEBUG
, &pdev
->dev
, "start aen failed\n");
6566 goto fail_start_aen
;
6569 /* Get current SR-IOV LD/VF affiliation */
6570 if (instance
->requestorId
)
6571 megasas_get_ld_vf_affiliation(instance
, 1);
6577 megasas_mgmt_info
.count
--;
6578 megasas_mgmt_info
.max_index
--;
6579 megasas_mgmt_info
.instance
[megasas_mgmt_info
.max_index
] = NULL
;
6581 instance
->instancet
->disable_intr(instance
);
6582 megasas_destroy_irqs(instance
);
6584 if (instance
->adapter_type
!= MFI_SERIES
)
6585 megasas_release_fusion(instance
);
6587 megasas_release_mfi(instance
);
6588 if (instance
->msix_vectors
)
6589 pci_free_irq_vectors(instance
->pdev
);
6591 scsi_host_put(host
);
6592 fail_alloc_instance
:
6593 pci_disable_device(pdev
);
6599 * megasas_flush_cache - Requests FW to flush all its caches
6600 * @instance: Adapter soft state
6602 static void megasas_flush_cache(struct megasas_instance
*instance
)
6604 struct megasas_cmd
*cmd
;
6605 struct megasas_dcmd_frame
*dcmd
;
6607 if (atomic_read(&instance
->adprecovery
) == MEGASAS_HW_CRITICAL_ERROR
)
6610 cmd
= megasas_get_cmd(instance
);
6615 dcmd
= &cmd
->frame
->dcmd
;
6617 memset(dcmd
->mbox
.b
, 0, MFI_MBOX_SIZE
);
6619 dcmd
->cmd
= MFI_CMD_DCMD
;
6620 dcmd
->cmd_status
= 0x0;
6621 dcmd
->sge_count
= 0;
6622 dcmd
->flags
= cpu_to_le16(MFI_FRAME_DIR_NONE
);
6625 dcmd
->data_xfer_len
= 0;
6626 dcmd
->opcode
= cpu_to_le32(MR_DCMD_CTRL_CACHE_FLUSH
);
6627 dcmd
->mbox
.b
[0] = MR_FLUSH_CTRL_CACHE
| MR_FLUSH_DISK_CACHE
;
6629 if (megasas_issue_blocked_cmd(instance
, cmd
, MFI_IO_TIMEOUT_SECS
)
6631 dev_err(&instance
->pdev
->dev
,
6632 "return from %s %d\n", __func__
, __LINE__
);
6636 megasas_return_cmd(instance
, cmd
);
6640 * megasas_shutdown_controller - Instructs FW to shutdown the controller
6641 * @instance: Adapter soft state
6642 * @opcode: Shutdown/Hibernate
6644 static void megasas_shutdown_controller(struct megasas_instance
*instance
,
6647 struct megasas_cmd
*cmd
;
6648 struct megasas_dcmd_frame
*dcmd
;
6650 if (atomic_read(&instance
->adprecovery
) == MEGASAS_HW_CRITICAL_ERROR
)
6653 cmd
= megasas_get_cmd(instance
);
6658 if (instance
->aen_cmd
)
6659 megasas_issue_blocked_abort_cmd(instance
,
6660 instance
->aen_cmd
, MFI_IO_TIMEOUT_SECS
);
6661 if (instance
->map_update_cmd
)
6662 megasas_issue_blocked_abort_cmd(instance
,
6663 instance
->map_update_cmd
, MFI_IO_TIMEOUT_SECS
);
6664 if (instance
->jbod_seq_cmd
)
6665 megasas_issue_blocked_abort_cmd(instance
,
6666 instance
->jbod_seq_cmd
, MFI_IO_TIMEOUT_SECS
);
6668 dcmd
= &cmd
->frame
->dcmd
;
6670 memset(dcmd
->mbox
.b
, 0, MFI_MBOX_SIZE
);
6672 dcmd
->cmd
= MFI_CMD_DCMD
;
6673 dcmd
->cmd_status
= 0x0;
6674 dcmd
->sge_count
= 0;
6675 dcmd
->flags
= cpu_to_le16(MFI_FRAME_DIR_NONE
);
6678 dcmd
->data_xfer_len
= 0;
6679 dcmd
->opcode
= cpu_to_le32(opcode
);
6681 if (megasas_issue_blocked_cmd(instance
, cmd
, MFI_IO_TIMEOUT_SECS
)
6683 dev_err(&instance
->pdev
->dev
,
6684 "return from %s %d\n", __func__
, __LINE__
);
6688 megasas_return_cmd(instance
, cmd
);
6693 * megasas_suspend - driver suspend entry point
6694 * @pdev: PCI device structure
6695 * @state: PCI power state to suspend routine
6698 megasas_suspend(struct pci_dev
*pdev
, pm_message_t state
)
6700 struct Scsi_Host
*host
;
6701 struct megasas_instance
*instance
;
6703 instance
= pci_get_drvdata(pdev
);
6704 host
= instance
->host
;
6705 instance
->unload
= 1;
6707 /* Shutdown SR-IOV heartbeat timer */
6708 if (instance
->requestorId
&& !instance
->skip_heartbeat_timer_del
)
6709 del_timer_sync(&instance
->sriov_heartbeat_timer
);
6711 megasas_flush_cache(instance
);
6712 megasas_shutdown_controller(instance
, MR_DCMD_HIBERNATE_SHUTDOWN
);
6714 /* cancel the delayed work if this work still in queue */
6715 if (instance
->ev
!= NULL
) {
6716 struct megasas_aen_event
*ev
= instance
->ev
;
6717 cancel_delayed_work_sync(&ev
->hotplug_work
);
6718 instance
->ev
= NULL
;
6721 tasklet_kill(&instance
->isr_tasklet
);
6723 pci_set_drvdata(instance
->pdev
, instance
);
6724 instance
->instancet
->disable_intr(instance
);
6726 megasas_destroy_irqs(instance
);
6728 if (instance
->msix_vectors
)
6729 pci_free_irq_vectors(instance
->pdev
);
6731 pci_save_state(pdev
);
6732 pci_disable_device(pdev
);
6734 pci_set_power_state(pdev
, pci_choose_state(pdev
, state
));
6740 * megasas_resume- driver resume entry point
6741 * @pdev: PCI device structure
6744 megasas_resume(struct pci_dev
*pdev
)
6747 struct Scsi_Host
*host
;
6748 struct megasas_instance
*instance
;
6749 int irq_flags
= PCI_IRQ_LEGACY
;
6751 instance
= pci_get_drvdata(pdev
);
6752 host
= instance
->host
;
6753 pci_set_power_state(pdev
, PCI_D0
);
6754 pci_enable_wake(pdev
, PCI_D0
, 0);
6755 pci_restore_state(pdev
);
6758 * PCI prepping: enable device set bus mastering and dma mask
6760 rval
= pci_enable_device_mem(pdev
);
6763 dev_err(&pdev
->dev
, "Enable device failed\n");
6767 pci_set_master(pdev
);
6770 * We expect the FW state to be READY
6772 if (megasas_transition_to_ready(instance
, 0))
6773 goto fail_ready_state
;
6775 if (megasas_set_dma_mask(instance
))
6776 goto fail_set_dma_mask
;
6779 * Initialize MFI Firmware
6782 atomic_set(&instance
->fw_outstanding
, 0);
6783 atomic_set(&instance
->ldio_outstanding
, 0);
6785 /* Now re-enable MSI-X */
6786 if (instance
->msix_vectors
) {
6787 irq_flags
= PCI_IRQ_MSIX
;
6788 if (smp_affinity_enable
)
6789 irq_flags
|= PCI_IRQ_AFFINITY
;
6791 rval
= pci_alloc_irq_vectors(instance
->pdev
, 1,
6792 instance
->msix_vectors
?
6793 instance
->msix_vectors
: 1, irq_flags
);
6795 goto fail_reenable_msix
;
6797 megasas_setup_reply_map(instance
);
6799 if (instance
->adapter_type
!= MFI_SERIES
) {
6800 megasas_reset_reply_desc(instance
);
6801 if (megasas_ioc_init_fusion(instance
)) {
6802 megasas_free_cmds(instance
);
6803 megasas_free_cmds_fusion(instance
);
6806 if (!megasas_get_map_info(instance
))
6807 megasas_sync_map_info(instance
);
6809 *instance
->producer
= 0;
6810 *instance
->consumer
= 0;
6811 if (megasas_issue_init_mfi(instance
))
6815 if (megasas_get_ctrl_info(instance
) != DCMD_SUCCESS
)
6818 tasklet_init(&instance
->isr_tasklet
, instance
->instancet
->tasklet
,
6819 (unsigned long)instance
);
6821 if (instance
->msix_vectors
?
6822 megasas_setup_irqs_msix(instance
, 0) :
6823 megasas_setup_irqs_ioapic(instance
))
6826 /* Re-launch SR-IOV heartbeat timer */
6827 if (instance
->requestorId
) {
6828 if (!megasas_sriov_start_heartbeat(instance
, 0))
6829 megasas_start_timer(instance
);
6831 instance
->skip_heartbeat_timer_del
= 1;
6836 instance
->instancet
->enable_intr(instance
);
6837 megasas_setup_jbod_map(instance
);
6838 instance
->unload
= 0;
6841 * Initiate AEN (Asynchronous Event Notification)
6843 if (megasas_start_aen(instance
))
6844 dev_err(&instance
->pdev
->dev
, "Start AEN failed\n");
6849 megasas_free_ctrl_dma_buffers(instance
);
6850 megasas_free_ctrl_mem(instance
);
6851 scsi_host_put(host
);
6857 pci_disable_device(pdev
);
6862 #define megasas_suspend NULL
6863 #define megasas_resume NULL
6867 megasas_wait_for_adapter_operational(struct megasas_instance
*instance
)
6869 int wait_time
= MEGASAS_RESET_WAIT_TIME
* 2;
6873 for (i
= 0; i
< wait_time
; i
++) {
6874 adp_state
= atomic_read(&instance
->adprecovery
);
6875 if ((adp_state
== MEGASAS_HBA_OPERATIONAL
) ||
6876 (adp_state
== MEGASAS_HW_CRITICAL_ERROR
))
6879 if (!(i
% MEGASAS_RESET_NOTICE_INTERVAL
))
6880 dev_notice(&instance
->pdev
->dev
, "waiting for controller reset to finish\n");
6885 if (adp_state
!= MEGASAS_HBA_OPERATIONAL
) {
6886 dev_info(&instance
->pdev
->dev
,
6887 "%s HBA failed to become operational, adp_state %d\n",
6888 __func__
, adp_state
);
6896 * megasas_detach_one - PCI hot"un"plug entry point
6897 * @pdev: PCI device structure
6899 static void megasas_detach_one(struct pci_dev
*pdev
)
6902 struct Scsi_Host
*host
;
6903 struct megasas_instance
*instance
;
6904 struct fusion_context
*fusion
;
6907 instance
= pci_get_drvdata(pdev
);
6908 host
= instance
->host
;
6909 fusion
= instance
->ctrl_context
;
6911 /* Shutdown SR-IOV heartbeat timer */
6912 if (instance
->requestorId
&& !instance
->skip_heartbeat_timer_del
)
6913 del_timer_sync(&instance
->sriov_heartbeat_timer
);
6915 if (instance
->fw_crash_state
!= UNAVAILABLE
)
6916 megasas_free_host_crash_buffer(instance
);
6917 scsi_remove_host(instance
->host
);
6918 instance
->unload
= 1;
6920 if (megasas_wait_for_adapter_operational(instance
))
6921 goto skip_firing_dcmds
;
6923 megasas_flush_cache(instance
);
6924 megasas_shutdown_controller(instance
, MR_DCMD_CTRL_SHUTDOWN
);
6927 /* cancel the delayed work if this work still in queue*/
6928 if (instance
->ev
!= NULL
) {
6929 struct megasas_aen_event
*ev
= instance
->ev
;
6930 cancel_delayed_work_sync(&ev
->hotplug_work
);
6931 instance
->ev
= NULL
;
6934 /* cancel all wait events */
6935 wake_up_all(&instance
->int_cmd_wait_q
);
6937 tasklet_kill(&instance
->isr_tasklet
);
6940 * Take the instance off the instance array. Note that we will not
6941 * decrement the max_index. We let this array be sparse array
6943 for (i
= 0; i
< megasas_mgmt_info
.max_index
; i
++) {
6944 if (megasas_mgmt_info
.instance
[i
] == instance
) {
6945 megasas_mgmt_info
.count
--;
6946 megasas_mgmt_info
.instance
[i
] = NULL
;
6952 instance
->instancet
->disable_intr(instance
);
6954 megasas_destroy_irqs(instance
);
6956 if (instance
->msix_vectors
)
6957 pci_free_irq_vectors(instance
->pdev
);
6959 if (instance
->adapter_type
== VENTURA_SERIES
) {
6960 for (i
= 0; i
< MAX_LOGICAL_DRIVES_EXT
; ++i
)
6961 kfree(fusion
->stream_detect_by_ld
[i
]);
6962 kfree(fusion
->stream_detect_by_ld
);
6963 fusion
->stream_detect_by_ld
= NULL
;
6967 if (instance
->adapter_type
!= MFI_SERIES
) {
6968 megasas_release_fusion(instance
);
6969 pd_seq_map_sz
= sizeof(struct MR_PD_CFG_SEQ_NUM_SYNC
) +
6970 (sizeof(struct MR_PD_CFG_SEQ
) *
6971 (MAX_PHYSICAL_DEVICES
- 1));
6972 for (i
= 0; i
< 2 ; i
++) {
6973 if (fusion
->ld_map
[i
])
6974 dma_free_coherent(&instance
->pdev
->dev
,
6977 fusion
->ld_map_phys
[i
]);
6978 if (fusion
->ld_drv_map
[i
]) {
6979 if (is_vmalloc_addr(fusion
->ld_drv_map
[i
]))
6980 vfree(fusion
->ld_drv_map
[i
]);
6982 free_pages((ulong
)fusion
->ld_drv_map
[i
],
6983 fusion
->drv_map_pages
);
6986 if (fusion
->pd_seq_sync
[i
])
6987 dma_free_coherent(&instance
->pdev
->dev
,
6989 fusion
->pd_seq_sync
[i
],
6990 fusion
->pd_seq_phys
[i
]);
6993 megasas_release_mfi(instance
);
6996 if (instance
->vf_affiliation
)
6997 dma_free_coherent(&pdev
->dev
, (MAX_LOGICAL_DRIVES
+ 1) *
6998 sizeof(struct MR_LD_VF_AFFILIATION
),
6999 instance
->vf_affiliation
,
7000 instance
->vf_affiliation_h
);
7002 if (instance
->vf_affiliation_111
)
7003 dma_free_coherent(&pdev
->dev
,
7004 sizeof(struct MR_LD_VF_AFFILIATION_111
),
7005 instance
->vf_affiliation_111
,
7006 instance
->vf_affiliation_111_h
);
7008 if (instance
->hb_host_mem
)
7009 dma_free_coherent(&pdev
->dev
, sizeof(struct MR_CTRL_HB_HOST_MEM
),
7010 instance
->hb_host_mem
,
7011 instance
->hb_host_mem_h
);
7013 megasas_free_ctrl_dma_buffers(instance
);
7015 megasas_free_ctrl_mem(instance
);
7017 scsi_host_put(host
);
7019 pci_disable_device(pdev
);
7023 * megasas_shutdown - Shutdown entry point
7024 * @device: Generic device structure
7026 static void megasas_shutdown(struct pci_dev
*pdev
)
7028 struct megasas_instance
*instance
= pci_get_drvdata(pdev
);
7030 instance
->unload
= 1;
7032 if (megasas_wait_for_adapter_operational(instance
))
7033 goto skip_firing_dcmds
;
7035 megasas_flush_cache(instance
);
7036 megasas_shutdown_controller(instance
, MR_DCMD_CTRL_SHUTDOWN
);
7039 instance
->instancet
->disable_intr(instance
);
7040 megasas_destroy_irqs(instance
);
7042 if (instance
->msix_vectors
)
7043 pci_free_irq_vectors(instance
->pdev
);
7047 * megasas_mgmt_open - char node "open" entry point
7049 static int megasas_mgmt_open(struct inode
*inode
, struct file
*filep
)
7052 * Allow only those users with admin rights
7054 if (!capable(CAP_SYS_ADMIN
))
7061 * megasas_mgmt_fasync - Async notifier registration from applications
7063 * This function adds the calling process to a driver global queue. When an
7064 * event occurs, SIGIO will be sent to all processes in this queue.
7066 static int megasas_mgmt_fasync(int fd
, struct file
*filep
, int mode
)
7070 mutex_lock(&megasas_async_queue_mutex
);
7072 rc
= fasync_helper(fd
, filep
, mode
, &megasas_async_queue
);
7074 mutex_unlock(&megasas_async_queue_mutex
);
7077 /* For sanity check when we get ioctl */
7078 filep
->private_data
= filep
;
7082 printk(KERN_DEBUG
"megasas: fasync_helper failed [%d]\n", rc
);
7088 * megasas_mgmt_poll - char node "poll" entry point
7090 static __poll_t
megasas_mgmt_poll(struct file
*file
, poll_table
*wait
)
7093 unsigned long flags
;
7095 poll_wait(file
, &megasas_poll_wait
, wait
);
7096 spin_lock_irqsave(&poll_aen_lock
, flags
);
7097 if (megasas_poll_wait_aen
)
7098 mask
= (EPOLLIN
| EPOLLRDNORM
);
7101 megasas_poll_wait_aen
= 0;
7102 spin_unlock_irqrestore(&poll_aen_lock
, flags
);
7107 * megasas_set_crash_dump_params_ioctl:
7108 * Send CRASH_DUMP_MODE DCMD to all controllers
7109 * @cmd: MFI command frame
7112 static int megasas_set_crash_dump_params_ioctl(struct megasas_cmd
*cmd
)
7114 struct megasas_instance
*local_instance
;
7118 crash_support
= cmd
->frame
->dcmd
.mbox
.w
[0];
7120 for (i
= 0; i
< megasas_mgmt_info
.max_index
; i
++) {
7121 local_instance
= megasas_mgmt_info
.instance
[i
];
7122 if (local_instance
&& local_instance
->crash_dump_drv_support
) {
7123 if ((atomic_read(&local_instance
->adprecovery
) ==
7124 MEGASAS_HBA_OPERATIONAL
) &&
7125 !megasas_set_crash_dump_params(local_instance
,
7127 local_instance
->crash_dump_app_support
=
7129 dev_info(&local_instance
->pdev
->dev
,
7130 "Application firmware crash "
7131 "dump mode set success\n");
7134 dev_info(&local_instance
->pdev
->dev
,
7135 "Application firmware crash "
7136 "dump mode set failed\n");
7145 * megasas_mgmt_fw_ioctl - Issues management ioctls to FW
7146 * @instance: Adapter soft state
7147 * @argp: User's ioctl packet
7150 megasas_mgmt_fw_ioctl(struct megasas_instance
*instance
,
7151 struct megasas_iocpacket __user
* user_ioc
,
7152 struct megasas_iocpacket
*ioc
)
7154 struct megasas_sge64
*kern_sge64
= NULL
;
7155 struct megasas_sge32
*kern_sge32
= NULL
;
7156 struct megasas_cmd
*cmd
;
7157 void *kbuff_arr
[MAX_IOCTL_SGE
];
7158 dma_addr_t buf_handle
= 0;
7161 dma_addr_t sense_handle
;
7162 unsigned long *sense_ptr
;
7165 memset(kbuff_arr
, 0, sizeof(kbuff_arr
));
7167 if (ioc
->sge_count
> MAX_IOCTL_SGE
) {
7168 dev_printk(KERN_DEBUG
, &instance
->pdev
->dev
, "SGE count [%d] > max limit [%d]\n",
7169 ioc
->sge_count
, MAX_IOCTL_SGE
);
7173 if ((ioc
->frame
.hdr
.cmd
>= MFI_CMD_OP_COUNT
) ||
7174 ((ioc
->frame
.hdr
.cmd
== MFI_CMD_NVME
) &&
7175 !instance
->support_nvme_passthru
)) {
7176 dev_err(&instance
->pdev
->dev
,
7177 "Received invalid ioctl command 0x%x\n",
7178 ioc
->frame
.hdr
.cmd
);
7182 cmd
= megasas_get_cmd(instance
);
7184 dev_printk(KERN_DEBUG
, &instance
->pdev
->dev
, "Failed to get a cmd packet\n");
7189 * User's IOCTL packet has 2 frames (maximum). Copy those two
7190 * frames into our cmd's frames. cmd->frame's context will get
7191 * overwritten when we copy from user's frames. So set that value
7194 memcpy(cmd
->frame
, ioc
->frame
.raw
, 2 * MEGAMFI_FRAME_SIZE
);
7195 cmd
->frame
->hdr
.context
= cpu_to_le32(cmd
->index
);
7196 cmd
->frame
->hdr
.pad_0
= 0;
7198 cmd
->frame
->hdr
.flags
&= (~MFI_FRAME_IEEE
);
7200 if (instance
->consistent_mask_64bit
)
7201 cmd
->frame
->hdr
.flags
|= cpu_to_le16((MFI_FRAME_SGL64
|
7202 MFI_FRAME_SENSE64
));
7204 cmd
->frame
->hdr
.flags
&= cpu_to_le16(~(MFI_FRAME_SGL64
|
7205 MFI_FRAME_SENSE64
));
7207 if (cmd
->frame
->hdr
.cmd
== MFI_CMD_DCMD
)
7208 opcode
= le32_to_cpu(cmd
->frame
->dcmd
.opcode
);
7210 if (opcode
== MR_DCMD_CTRL_SHUTDOWN
) {
7211 if (megasas_get_ctrl_info(instance
) != DCMD_SUCCESS
) {
7212 megasas_return_cmd(instance
, cmd
);
7217 if (opcode
== MR_DRIVER_SET_APP_CRASHDUMP_MODE
) {
7218 error
= megasas_set_crash_dump_params_ioctl(cmd
);
7219 megasas_return_cmd(instance
, cmd
);
7224 * The management interface between applications and the fw uses
7225 * MFI frames. E.g, RAID configuration changes, LD property changes
7226 * etc are accomplishes through different kinds of MFI frames. The
7227 * driver needs to care only about substituting user buffers with
7228 * kernel buffers in SGLs. The location of SGL is embedded in the
7229 * struct iocpacket itself.
7231 if (instance
->consistent_mask_64bit
)
7232 kern_sge64
= (struct megasas_sge64
*)
7233 ((unsigned long)cmd
->frame
+ ioc
->sgl_off
);
7235 kern_sge32
= (struct megasas_sge32
*)
7236 ((unsigned long)cmd
->frame
+ ioc
->sgl_off
);
7239 * For each user buffer, create a mirror buffer and copy in
7241 for (i
= 0; i
< ioc
->sge_count
; i
++) {
7242 if (!ioc
->sgl
[i
].iov_len
)
7245 kbuff_arr
[i
] = dma_alloc_coherent(&instance
->pdev
->dev
,
7246 ioc
->sgl
[i
].iov_len
,
7247 &buf_handle
, GFP_KERNEL
);
7248 if (!kbuff_arr
[i
]) {
7249 dev_printk(KERN_DEBUG
, &instance
->pdev
->dev
, "Failed to alloc "
7250 "kernel SGL buffer for IOCTL\n");
7256 * We don't change the dma_coherent_mask, so
7257 * dma_alloc_coherent only returns 32bit addresses
7259 if (instance
->consistent_mask_64bit
) {
7260 kern_sge64
[i
].phys_addr
= cpu_to_le64(buf_handle
);
7261 kern_sge64
[i
].length
= cpu_to_le32(ioc
->sgl
[i
].iov_len
);
7263 kern_sge32
[i
].phys_addr
= cpu_to_le32(buf_handle
);
7264 kern_sge32
[i
].length
= cpu_to_le32(ioc
->sgl
[i
].iov_len
);
7268 * We created a kernel buffer corresponding to the
7269 * user buffer. Now copy in from the user buffer
7271 if (copy_from_user(kbuff_arr
[i
], ioc
->sgl
[i
].iov_base
,
7272 (u32
) (ioc
->sgl
[i
].iov_len
))) {
7278 if (ioc
->sense_len
) {
7279 sense
= dma_alloc_coherent(&instance
->pdev
->dev
, ioc
->sense_len
,
7280 &sense_handle
, GFP_KERNEL
);
7287 (unsigned long *) ((unsigned long)cmd
->frame
+ ioc
->sense_off
);
7288 if (instance
->consistent_mask_64bit
)
7289 *sense_ptr
= cpu_to_le64(sense_handle
);
7291 *sense_ptr
= cpu_to_le32(sense_handle
);
7295 * Set the sync_cmd flag so that the ISR knows not to complete this
7296 * cmd to the SCSI mid-layer
7299 if (megasas_issue_blocked_cmd(instance
, cmd
, 0) == DCMD_NOT_FIRED
) {
7301 dev_err(&instance
->pdev
->dev
,
7302 "return -EBUSY from %s %d cmd 0x%x opcode 0x%x cmd->cmd_status_drv 0x%x\n",
7303 __func__
, __LINE__
, cmd
->frame
->hdr
.cmd
, opcode
,
7304 cmd
->cmd_status_drv
);
7310 if (instance
->unload
== 1) {
7311 dev_info(&instance
->pdev
->dev
, "Driver unload is in progress "
7312 "don't submit data to application\n");
7316 * copy out the kernel buffers to user buffers
7318 for (i
= 0; i
< ioc
->sge_count
; i
++) {
7319 if (copy_to_user(ioc
->sgl
[i
].iov_base
, kbuff_arr
[i
],
7320 ioc
->sgl
[i
].iov_len
)) {
7327 * copy out the sense
7329 if (ioc
->sense_len
) {
7331 * sense_ptr points to the location that has the user
7332 * sense buffer address
7334 sense_ptr
= (unsigned long *) ((unsigned long)ioc
->frame
.raw
+
7337 if (copy_to_user((void __user
*)((unsigned long)
7338 get_unaligned((unsigned long *)sense_ptr
)),
7339 sense
, ioc
->sense_len
)) {
7340 dev_err(&instance
->pdev
->dev
, "Failed to copy out to user "
7348 * copy the status codes returned by the fw
7350 if (copy_to_user(&user_ioc
->frame
.hdr
.cmd_status
,
7351 &cmd
->frame
->hdr
.cmd_status
, sizeof(u8
))) {
7352 dev_printk(KERN_DEBUG
, &instance
->pdev
->dev
, "Error copying out cmd_status\n");
7358 dma_free_coherent(&instance
->pdev
->dev
, ioc
->sense_len
,
7359 sense
, sense_handle
);
7362 for (i
= 0; i
< ioc
->sge_count
; i
++) {
7364 if (instance
->consistent_mask_64bit
)
7365 dma_free_coherent(&instance
->pdev
->dev
,
7366 le32_to_cpu(kern_sge64
[i
].length
),
7368 le64_to_cpu(kern_sge64
[i
].phys_addr
));
7370 dma_free_coherent(&instance
->pdev
->dev
,
7371 le32_to_cpu(kern_sge32
[i
].length
),
7373 le32_to_cpu(kern_sge32
[i
].phys_addr
));
7374 kbuff_arr
[i
] = NULL
;
7378 megasas_return_cmd(instance
, cmd
);
7382 static int megasas_mgmt_ioctl_fw(struct file
*file
, unsigned long arg
)
7384 struct megasas_iocpacket __user
*user_ioc
=
7385 (struct megasas_iocpacket __user
*)arg
;
7386 struct megasas_iocpacket
*ioc
;
7387 struct megasas_instance
*instance
;
7390 ioc
= memdup_user(user_ioc
, sizeof(*ioc
));
7392 return PTR_ERR(ioc
);
7394 instance
= megasas_lookup_instance(ioc
->host_no
);
7400 /* Block ioctls in VF mode */
7401 if (instance
->requestorId
&& !allow_vf_ioctls
) {
7406 if (atomic_read(&instance
->adprecovery
) == MEGASAS_HW_CRITICAL_ERROR
) {
7407 dev_err(&instance
->pdev
->dev
, "Controller in crit error\n");
7412 if (instance
->unload
== 1) {
7417 if (down_interruptible(&instance
->ioctl_sem
)) {
7418 error
= -ERESTARTSYS
;
7422 if (megasas_wait_for_adapter_operational(instance
)) {
7427 error
= megasas_mgmt_fw_ioctl(instance
, user_ioc
, ioc
);
7429 up(&instance
->ioctl_sem
);
7436 static int megasas_mgmt_ioctl_aen(struct file
*file
, unsigned long arg
)
7438 struct megasas_instance
*instance
;
7439 struct megasas_aen aen
;
7442 if (file
->private_data
!= file
) {
7443 printk(KERN_DEBUG
"megasas: fasync_helper was not "
7448 if (copy_from_user(&aen
, (void __user
*)arg
, sizeof(aen
)))
7451 instance
= megasas_lookup_instance(aen
.host_no
);
7456 if (atomic_read(&instance
->adprecovery
) == MEGASAS_HW_CRITICAL_ERROR
) {
7460 if (instance
->unload
== 1) {
7464 if (megasas_wait_for_adapter_operational(instance
))
7467 mutex_lock(&instance
->reset_mutex
);
7468 error
= megasas_register_aen(instance
, aen
.seq_num
,
7469 aen
.class_locale_word
);
7470 mutex_unlock(&instance
->reset_mutex
);
7475 * megasas_mgmt_ioctl - char node ioctl entry point
7478 megasas_mgmt_ioctl(struct file
*file
, unsigned int cmd
, unsigned long arg
)
7481 case MEGASAS_IOC_FIRMWARE
:
7482 return megasas_mgmt_ioctl_fw(file
, arg
);
7484 case MEGASAS_IOC_GET_AEN
:
7485 return megasas_mgmt_ioctl_aen(file
, arg
);
7491 #ifdef CONFIG_COMPAT
7492 static int megasas_mgmt_compat_ioctl_fw(struct file
*file
, unsigned long arg
)
7494 struct compat_megasas_iocpacket __user
*cioc
=
7495 (struct compat_megasas_iocpacket __user
*)arg
;
7496 struct megasas_iocpacket __user
*ioc
=
7497 compat_alloc_user_space(sizeof(struct megasas_iocpacket
));
7501 u32 local_sense_off
;
7502 u32 local_sense_len
;
7505 if (clear_user(ioc
, sizeof(*ioc
)))
7508 if (copy_in_user(&ioc
->host_no
, &cioc
->host_no
, sizeof(u16
)) ||
7509 copy_in_user(&ioc
->sgl_off
, &cioc
->sgl_off
, sizeof(u32
)) ||
7510 copy_in_user(&ioc
->sense_off
, &cioc
->sense_off
, sizeof(u32
)) ||
7511 copy_in_user(&ioc
->sense_len
, &cioc
->sense_len
, sizeof(u32
)) ||
7512 copy_in_user(ioc
->frame
.raw
, cioc
->frame
.raw
, 128) ||
7513 copy_in_user(&ioc
->sge_count
, &cioc
->sge_count
, sizeof(u32
)))
7517 * The sense_ptr is used in megasas_mgmt_fw_ioctl only when
7518 * sense_len is not null, so prepare the 64bit value under
7519 * the same condition.
7521 if (get_user(local_sense_off
, &ioc
->sense_off
) ||
7522 get_user(local_sense_len
, &ioc
->sense_len
) ||
7523 get_user(user_sense_off
, &cioc
->sense_off
))
7526 if (local_sense_off
!= user_sense_off
)
7529 if (local_sense_len
) {
7530 void __user
**sense_ioc_ptr
=
7531 (void __user
**)((u8
*)((unsigned long)&ioc
->frame
.raw
) + local_sense_off
);
7532 compat_uptr_t
*sense_cioc_ptr
=
7533 (compat_uptr_t
*)(((unsigned long)&cioc
->frame
.raw
) + user_sense_off
);
7534 if (get_user(ptr
, sense_cioc_ptr
) ||
7535 put_user(compat_ptr(ptr
), sense_ioc_ptr
))
7539 for (i
= 0; i
< MAX_IOCTL_SGE
; i
++) {
7540 if (get_user(ptr
, &cioc
->sgl
[i
].iov_base
) ||
7541 put_user(compat_ptr(ptr
), &ioc
->sgl
[i
].iov_base
) ||
7542 copy_in_user(&ioc
->sgl
[i
].iov_len
,
7543 &cioc
->sgl
[i
].iov_len
, sizeof(compat_size_t
)))
7547 error
= megasas_mgmt_ioctl_fw(file
, (unsigned long)ioc
);
7549 if (copy_in_user(&cioc
->frame
.hdr
.cmd_status
,
7550 &ioc
->frame
.hdr
.cmd_status
, sizeof(u8
))) {
7551 printk(KERN_DEBUG
"megasas: error copy_in_user cmd_status\n");
7558 megasas_mgmt_compat_ioctl(struct file
*file
, unsigned int cmd
,
7562 case MEGASAS_IOC_FIRMWARE32
:
7563 return megasas_mgmt_compat_ioctl_fw(file
, arg
);
7564 case MEGASAS_IOC_GET_AEN
:
7565 return megasas_mgmt_ioctl_aen(file
, arg
);
7573 * File operations structure for management interface
7575 static const struct file_operations megasas_mgmt_fops
= {
7576 .owner
= THIS_MODULE
,
7577 .open
= megasas_mgmt_open
,
7578 .fasync
= megasas_mgmt_fasync
,
7579 .unlocked_ioctl
= megasas_mgmt_ioctl
,
7580 .poll
= megasas_mgmt_poll
,
7581 #ifdef CONFIG_COMPAT
7582 .compat_ioctl
= megasas_mgmt_compat_ioctl
,
7584 .llseek
= noop_llseek
,
7588 * PCI hotplug support registration structure
7590 static struct pci_driver megasas_pci_driver
= {
7592 .name
= "megaraid_sas",
7593 .id_table
= megasas_pci_table
,
7594 .probe
= megasas_probe_one
,
7595 .remove
= megasas_detach_one
,
7596 .suspend
= megasas_suspend
,
7597 .resume
= megasas_resume
,
7598 .shutdown
= megasas_shutdown
,
7602 * Sysfs driver attributes
7604 static ssize_t
version_show(struct device_driver
*dd
, char *buf
)
7606 return snprintf(buf
, strlen(MEGASAS_VERSION
) + 2, "%s\n",
7609 static DRIVER_ATTR_RO(version
);
7611 static ssize_t
release_date_show(struct device_driver
*dd
, char *buf
)
7613 return snprintf(buf
, strlen(MEGASAS_RELDATE
) + 2, "%s\n",
7616 static DRIVER_ATTR_RO(release_date
);
7618 static ssize_t
support_poll_for_event_show(struct device_driver
*dd
, char *buf
)
7620 return sprintf(buf
, "%u\n", support_poll_for_event
);
7622 static DRIVER_ATTR_RO(support_poll_for_event
);
7624 static ssize_t
support_device_change_show(struct device_driver
*dd
, char *buf
)
7626 return sprintf(buf
, "%u\n", support_device_change
);
7628 static DRIVER_ATTR_RO(support_device_change
);
7630 static ssize_t
dbg_lvl_show(struct device_driver
*dd
, char *buf
)
7632 return sprintf(buf
, "%u\n", megasas_dbg_lvl
);
7635 static ssize_t
dbg_lvl_store(struct device_driver
*dd
, const char *buf
,
7640 if (sscanf(buf
, "%u", &megasas_dbg_lvl
) < 1) {
7641 printk(KERN_ERR
"megasas: could not set dbg_lvl\n");
7646 static DRIVER_ATTR_RW(dbg_lvl
);
7649 support_nvme_encapsulation_show(struct device_driver
*dd
, char *buf
)
7651 return sprintf(buf
, "%u\n", support_nvme_encapsulation
);
7654 static DRIVER_ATTR_RO(support_nvme_encapsulation
);
7656 static inline void megasas_remove_scsi_device(struct scsi_device
*sdev
)
7658 sdev_printk(KERN_INFO
, sdev
, "SCSI device is removed\n");
7659 scsi_remove_device(sdev
);
7660 scsi_device_put(sdev
);
7664 megasas_aen_polling(struct work_struct
*work
)
7666 struct megasas_aen_event
*ev
=
7667 container_of(work
, struct megasas_aen_event
, hotplug_work
.work
);
7668 struct megasas_instance
*instance
= ev
->instance
;
7669 union megasas_evt_class_locale class_locale
;
7670 struct Scsi_Host
*host
;
7671 struct scsi_device
*sdev1
;
7674 int i
, j
, doscan
= 0;
7675 u32 seq_num
, wait_time
= MEGASAS_RESET_WAIT_TIME
;
7677 u8 dcmd_ret
= DCMD_SUCCESS
;
7680 printk(KERN_ERR
"invalid instance!\n");
7685 /* Adjust event workqueue thread wait time for VF mode */
7686 if (instance
->requestorId
)
7687 wait_time
= MEGASAS_ROUTINE_WAIT_TIME_VF
;
7689 /* Don't run the event workqueue thread if OCR is running */
7690 mutex_lock(&instance
->reset_mutex
);
7692 instance
->ev
= NULL
;
7693 host
= instance
->host
;
7694 if (instance
->evt_detail
) {
7695 megasas_decode_evt(instance
);
7697 switch (le32_to_cpu(instance
->evt_detail
->code
)) {
7699 case MR_EVT_PD_INSERTED
:
7700 case MR_EVT_PD_REMOVED
:
7701 dcmd_ret
= megasas_get_pd_list(instance
);
7702 if (dcmd_ret
== DCMD_SUCCESS
)
7703 doscan
= SCAN_PD_CHANNEL
;
7706 case MR_EVT_LD_OFFLINE
:
7707 case MR_EVT_CFG_CLEARED
:
7708 case MR_EVT_LD_DELETED
:
7709 case MR_EVT_LD_CREATED
:
7710 if (!instance
->requestorId
||
7711 (instance
->requestorId
&& megasas_get_ld_vf_affiliation(instance
, 0)))
7712 dcmd_ret
= megasas_ld_list_query(instance
, MR_LD_QUERY_TYPE_EXPOSED_TO_HOST
);
7714 if (dcmd_ret
== DCMD_SUCCESS
)
7715 doscan
= SCAN_VD_CHANNEL
;
7719 case MR_EVT_CTRL_HOST_BUS_SCAN_REQUESTED
:
7720 case MR_EVT_FOREIGN_CFG_IMPORTED
:
7721 case MR_EVT_LD_STATE_CHANGE
:
7722 dcmd_ret
= megasas_get_pd_list(instance
);
7724 if (dcmd_ret
!= DCMD_SUCCESS
)
7727 if (!instance
->requestorId
||
7728 (instance
->requestorId
&& megasas_get_ld_vf_affiliation(instance
, 0)))
7729 dcmd_ret
= megasas_ld_list_query(instance
, MR_LD_QUERY_TYPE_EXPOSED_TO_HOST
);
7731 if (dcmd_ret
!= DCMD_SUCCESS
)
7734 doscan
= SCAN_VD_CHANNEL
| SCAN_PD_CHANNEL
;
7735 dev_info(&instance
->pdev
->dev
, "scanning for scsi%d...\n",
7736 instance
->host
->host_no
);
7739 case MR_EVT_CTRL_PROP_CHANGED
:
7740 dcmd_ret
= megasas_get_ctrl_info(instance
);
7747 dev_err(&instance
->pdev
->dev
, "invalid evt_detail!\n");
7748 mutex_unlock(&instance
->reset_mutex
);
7753 mutex_unlock(&instance
->reset_mutex
);
7755 if (doscan
& SCAN_PD_CHANNEL
) {
7756 for (i
= 0; i
< MEGASAS_MAX_PD_CHANNELS
; i
++) {
7757 for (j
= 0; j
< MEGASAS_MAX_DEV_PER_CHANNEL
; j
++) {
7758 pd_index
= i
*MEGASAS_MAX_DEV_PER_CHANNEL
+ j
;
7759 sdev1
= scsi_device_lookup(host
, i
, j
, 0);
7760 if (instance
->pd_list
[pd_index
].driveState
==
7761 MR_PD_STATE_SYSTEM
) {
7763 scsi_add_device(host
, i
, j
, 0);
7765 scsi_device_put(sdev1
);
7768 megasas_remove_scsi_device(sdev1
);
7774 if (doscan
& SCAN_VD_CHANNEL
) {
7775 for (i
= 0; i
< MEGASAS_MAX_LD_CHANNELS
; i
++) {
7776 for (j
= 0; j
< MEGASAS_MAX_DEV_PER_CHANNEL
; j
++) {
7777 ld_index
= (i
* MEGASAS_MAX_DEV_PER_CHANNEL
) + j
;
7778 sdev1
= scsi_device_lookup(host
, MEGASAS_MAX_PD_CHANNELS
+ i
, j
, 0);
7779 if (instance
->ld_ids
[ld_index
] != 0xff) {
7781 scsi_add_device(host
, MEGASAS_MAX_PD_CHANNELS
+ i
, j
, 0);
7783 scsi_device_put(sdev1
);
7786 megasas_remove_scsi_device(sdev1
);
7792 if (dcmd_ret
== DCMD_SUCCESS
)
7793 seq_num
= le32_to_cpu(instance
->evt_detail
->seq_num
) + 1;
7795 seq_num
= instance
->last_seq_num
;
7797 /* Register AEN with FW for latest sequence number plus 1 */
7798 class_locale
.members
.reserved
= 0;
7799 class_locale
.members
.locale
= MR_EVT_LOCALE_ALL
;
7800 class_locale
.members
.class = MR_EVT_CLASS_DEBUG
;
7802 if (instance
->aen_cmd
!= NULL
) {
7807 mutex_lock(&instance
->reset_mutex
);
7808 error
= megasas_register_aen(instance
, seq_num
,
7811 dev_err(&instance
->pdev
->dev
,
7812 "register aen failed error %x\n", error
);
7814 mutex_unlock(&instance
->reset_mutex
);
7819 * megasas_init - Driver load entry point
7821 static int __init
megasas_init(void)
7826 * Booted in kdump kernel, minimize memory footprints by
7827 * disabling few features
7829 if (reset_devices
) {
7832 dual_qdepth_disable
= 1;
7836 * Announce driver version and other information
7838 pr_info("megasas: %s\n", MEGASAS_VERSION
);
7840 spin_lock_init(&poll_aen_lock
);
7842 support_poll_for_event
= 2;
7843 support_device_change
= 1;
7844 support_nvme_encapsulation
= true;
7846 memset(&megasas_mgmt_info
, 0, sizeof(megasas_mgmt_info
));
7849 * Register character device node
7851 rval
= register_chrdev(0, "megaraid_sas_ioctl", &megasas_mgmt_fops
);
7854 printk(KERN_DEBUG
"megasas: failed to open device node\n");
7858 megasas_mgmt_majorno
= rval
;
7861 * Register ourselves as PCI hotplug module
7863 rval
= pci_register_driver(&megasas_pci_driver
);
7866 printk(KERN_DEBUG
"megasas: PCI hotplug registration failed \n");
7870 rval
= driver_create_file(&megasas_pci_driver
.driver
,
7871 &driver_attr_version
);
7873 goto err_dcf_attr_ver
;
7875 rval
= driver_create_file(&megasas_pci_driver
.driver
,
7876 &driver_attr_release_date
);
7878 goto err_dcf_rel_date
;
7880 rval
= driver_create_file(&megasas_pci_driver
.driver
,
7881 &driver_attr_support_poll_for_event
);
7883 goto err_dcf_support_poll_for_event
;
7885 rval
= driver_create_file(&megasas_pci_driver
.driver
,
7886 &driver_attr_dbg_lvl
);
7888 goto err_dcf_dbg_lvl
;
7889 rval
= driver_create_file(&megasas_pci_driver
.driver
,
7890 &driver_attr_support_device_change
);
7892 goto err_dcf_support_device_change
;
7894 rval
= driver_create_file(&megasas_pci_driver
.driver
,
7895 &driver_attr_support_nvme_encapsulation
);
7897 goto err_dcf_support_nvme_encapsulation
;
7901 err_dcf_support_nvme_encapsulation
:
7902 driver_remove_file(&megasas_pci_driver
.driver
,
7903 &driver_attr_support_device_change
);
7905 err_dcf_support_device_change
:
7906 driver_remove_file(&megasas_pci_driver
.driver
,
7907 &driver_attr_dbg_lvl
);
7909 driver_remove_file(&megasas_pci_driver
.driver
,
7910 &driver_attr_support_poll_for_event
);
7911 err_dcf_support_poll_for_event
:
7912 driver_remove_file(&megasas_pci_driver
.driver
,
7913 &driver_attr_release_date
);
7915 driver_remove_file(&megasas_pci_driver
.driver
, &driver_attr_version
);
7917 pci_unregister_driver(&megasas_pci_driver
);
7919 unregister_chrdev(megasas_mgmt_majorno
, "megaraid_sas_ioctl");
7924 * megasas_exit - Driver unload entry point
7926 static void __exit
megasas_exit(void)
7928 driver_remove_file(&megasas_pci_driver
.driver
,
7929 &driver_attr_dbg_lvl
);
7930 driver_remove_file(&megasas_pci_driver
.driver
,
7931 &driver_attr_support_poll_for_event
);
7932 driver_remove_file(&megasas_pci_driver
.driver
,
7933 &driver_attr_support_device_change
);
7934 driver_remove_file(&megasas_pci_driver
.driver
,
7935 &driver_attr_release_date
);
7936 driver_remove_file(&megasas_pci_driver
.driver
, &driver_attr_version
);
7937 driver_remove_file(&megasas_pci_driver
.driver
,
7938 &driver_attr_support_nvme_encapsulation
);
7940 pci_unregister_driver(&megasas_pci_driver
);
7941 unregister_chrdev(megasas_mgmt_majorno
, "megaraid_sas_ioctl");
7944 module_init(megasas_init
);
7945 module_exit(megasas_exit
);