1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * Linux MegaRAID driver for SAS based RAID controllers
5 * Copyright (c) 2003-2013 LSI Corporation
6 * Copyright (c) 2013-2016 Avago Technologies
7 * Copyright (c) 2016-2018 Broadcom Inc.
9 * Authors: Broadcom Inc.
14 * Kashyap Desai <kashyap.desai@broadcom.com>
15 * Sumit Saxena <sumit.saxena@broadcom.com>
17 * Send feedback to: megaraidlinux.pdl@broadcom.com
20 #include <linux/kernel.h>
21 #include <linux/types.h>
22 #include <linux/pci.h>
23 #include <linux/list.h>
24 #include <linux/moduleparam.h>
25 #include <linux/module.h>
26 #include <linux/spinlock.h>
27 #include <linux/interrupt.h>
28 #include <linux/delay.h>
29 #include <linux/uio.h>
30 #include <linux/slab.h>
31 #include <linux/uaccess.h>
32 #include <asm/unaligned.h>
34 #include <linux/compat.h>
35 #include <linux/blkdev.h>
36 #include <linux/mutex.h>
37 #include <linux/poll.h>
38 #include <linux/vmalloc.h>
39 #include <linux/irq_poll.h>
40 #include <linux/blk-mq-pci.h>
42 #include <scsi/scsi.h>
43 #include <scsi/scsi_cmnd.h>
44 #include <scsi/scsi_device.h>
45 #include <scsi/scsi_host.h>
46 #include <scsi/scsi_tcq.h>
47 #include <scsi/scsi_dbg.h>
48 #include "megaraid_sas_fusion.h"
49 #include "megaraid_sas.h"
52 * Number of sectors per IO command
53 * Will be set in megasas_init_mfi if user does not provide
55 static unsigned int max_sectors;
56 module_param_named(max_sectors, max_sectors, int, 0444);
57 MODULE_PARM_DESC(max_sectors,
58 "Maximum number of sectors per IO command");
60 static int msix_disable;
61 module_param(msix_disable, int, 0444);
62 MODULE_PARM_DESC(msix_disable, "Disable MSI-X interrupt handling. Default: 0");
64 static unsigned int msix_vectors;
65 module_param(msix_vectors, int, 0444);
66 MODULE_PARM_DESC(msix_vectors, "MSI-X max vector count. Default: Set by FW");
68 static int allow_vf_ioctls;
69 module_param(allow_vf_ioctls, int, 0444);
70 MODULE_PARM_DESC(allow_vf_ioctls, "Allow ioctls in SR-IOV VF mode. Default: 0");
72 static unsigned int throttlequeuedepth = MEGASAS_THROTTLE_QUEUE_DEPTH;
73 module_param(throttlequeuedepth, int, 0444);
74 MODULE_PARM_DESC(throttlequeuedepth,
75 "Adapter queue depth when throttled due to I/O timeout. Default: 16");
77 unsigned int resetwaittime = MEGASAS_RESET_WAIT_TIME;
78 module_param(resetwaittime, int, 0444);
79 MODULE_PARM_DESC(resetwaittime, "Wait time in (1-180s) after I/O timeout before resetting adapter. Default: 180s");
81 static int smp_affinity_enable = 1;
82 module_param(smp_affinity_enable, int, 0444);
83 MODULE_PARM_DESC(smp_affinity_enable, "SMP affinity feature enable/disable Default: enable(1)");
85 static int rdpq_enable = 1;
86 module_param(rdpq_enable, int, 0444);
87 MODULE_PARM_DESC(rdpq_enable, "Allocate reply queue in chunks for large queue depth enable/disable Default: enable(1)");
89 unsigned int dual_qdepth_disable;
90 module_param(dual_qdepth_disable, int, 0444);
91 MODULE_PARM_DESC(dual_qdepth_disable, "Disable dual queue depth feature. Default: 0");
93 static unsigned int scmd_timeout = MEGASAS_DEFAULT_CMD_TIMEOUT;
94 module_param(scmd_timeout, int, 0444);
95 MODULE_PARM_DESC(scmd_timeout, "scsi command timeout (10-90s), default 90s. See megasas_reset_timer.");
98 module_param(perf_mode, int, 0444);
99 MODULE_PARM_DESC(perf_mode, "Performance mode (only for Aero adapters), options:\n\t\t"
100 "0 - balanced: High iops and low latency queues are allocated &\n\t\t"
101 "interrupt coalescing is enabled only on high iops queues\n\t\t"
102 "1 - iops: High iops queues are not allocated &\n\t\t"
103 "interrupt coalescing is enabled on all queues\n\t\t"
104 "2 - latency: High iops queues are not allocated &\n\t\t"
105 "interrupt coalescing is disabled on all queues\n\t\t"
106 "default mode is 'balanced'"
109 int event_log_level = MFI_EVT_CLASS_CRITICAL;
110 module_param(event_log_level, int, 0644);
111 MODULE_PARM_DESC(event_log_level, "Asynchronous event logging level- range is: -2(CLASS_DEBUG) to 4(CLASS_DEAD), Default: 2(CLASS_CRITICAL)");
113 unsigned int enable_sdev_max_qd;
114 module_param(enable_sdev_max_qd, int, 0444);
115 MODULE_PARM_DESC(enable_sdev_max_qd, "Enable sdev max qd as can_queue. Default: 0");
118 module_param(poll_queues, int, 0444);
119 MODULE_PARM_DESC(poll_queues, "Number of queues to be use for io_uring poll mode.\n\t\t"
120 "This parameter is effective only if host_tagset_enable=1 &\n\t\t"
121 "It is not applicable for MFI_SERIES. &\n\t\t"
122 "Driver will work in latency mode. &\n\t\t"
123 "High iops queues are not allocated &\n\t\t"
126 int host_tagset_enable = 1;
127 module_param(host_tagset_enable, int, 0444);
128 MODULE_PARM_DESC(host_tagset_enable, "Shared host tagset enable/disable Default: enable(1)");
130 MODULE_LICENSE("GPL");
131 MODULE_VERSION(MEGASAS_VERSION);
132 MODULE_AUTHOR("megaraidlinux.pdl@broadcom.com");
133 MODULE_DESCRIPTION("Broadcom MegaRAID SAS Driver");
135 int megasas_transition_to_ready(struct megasas_instance *instance, int ocr);
136 static int megasas_get_pd_list(struct megasas_instance *instance);
137 static int megasas_ld_list_query(struct megasas_instance *instance,
139 static int megasas_issue_init_mfi(struct megasas_instance *instance);
140 static int megasas_register_aen(struct megasas_instance *instance,
141 u32 seq_num, u32 class_locale_word);
142 static void megasas_get_pd_info(struct megasas_instance *instance,
143 struct scsi_device *sdev);
145 megasas_set_ld_removed_by_fw(struct megasas_instance *instance);
148 * PCI ID table for all supported controllers
150 static struct pci_device_id megasas_pci_table[] = {
152 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS1064R)},
154 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS1078R)},
156 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS1078DE)},
158 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS1078GEN2)},
160 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS0079GEN2)},
162 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS0073SKINNY)},
164 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS0071SKINNY)},
166 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_VERDE_ZCR)},
167 /* xscale IOP, vega */
168 {PCI_DEVICE(PCI_VENDOR_ID_DELL, PCI_DEVICE_ID_DELL_PERC5)},
170 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FUSION)},
172 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_PLASMA)},
174 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_INVADER)},
176 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FURY)},
178 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_INTRUDER)},
180 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_INTRUDER_24)},
181 /* Intruder 24 port*/
182 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_CUTLASS_52)},
183 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_CUTLASS_53)},
185 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_VENTURA)},
186 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_CRUSADER)},
187 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_HARPOON)},
188 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_TOMCAT)},
189 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_VENTURA_4PORT)},
190 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_CRUSADER_4PORT)},
191 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_AERO_10E1)},
192 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_AERO_10E2)},
193 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_AERO_10E5)},
194 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_AERO_10E6)},
195 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_AERO_10E0)},
196 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_AERO_10E3)},
197 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_AERO_10E4)},
198 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_AERO_10E7)},
202 MODULE_DEVICE_TABLE(pci, megasas_pci_table);
204 static int megasas_mgmt_majorno;
205 struct megasas_mgmt_info megasas_mgmt_info;
206 static struct fasync_struct *megasas_async_queue;
207 static DEFINE_MUTEX(megasas_async_queue_mutex);
209 static int megasas_poll_wait_aen;
210 static DECLARE_WAIT_QUEUE_HEAD(megasas_poll_wait);
211 static u32 support_poll_for_event;
213 static u32 support_device_change;
214 static bool support_nvme_encapsulation;
215 static bool support_pci_lane_margining;
217 /* define lock for aen poll */
218 static DEFINE_SPINLOCK(poll_aen_lock);
220 extern struct dentry *megasas_debugfs_root;
221 extern int megasas_blk_mq_poll(struct Scsi_Host *shost, unsigned int queue_num);
224 megasas_complete_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd,
227 megasas_read_fw_status_reg_gen2(struct megasas_instance *instance);
229 megasas_adp_reset_gen2(struct megasas_instance *instance,
230 struct megasas_register_set __iomem *reg_set);
231 static irqreturn_t megasas_isr(int irq, void *devp);
233 megasas_init_adapter_mfi(struct megasas_instance *instance);
235 megasas_build_and_issue_cmd(struct megasas_instance *instance,
236 struct scsi_cmnd *scmd);
237 static void megasas_complete_cmd_dpc(unsigned long instance_addr);
239 wait_and_poll(struct megasas_instance *instance, struct megasas_cmd *cmd,
241 void megasas_fusion_ocr_wq(struct work_struct *work);
242 static int megasas_get_ld_vf_affiliation(struct megasas_instance *instance,
245 megasas_set_dma_mask(struct megasas_instance *instance);
247 megasas_alloc_ctrl_mem(struct megasas_instance *instance);
249 megasas_free_ctrl_mem(struct megasas_instance *instance);
251 megasas_alloc_ctrl_dma_buffers(struct megasas_instance *instance);
253 megasas_free_ctrl_dma_buffers(struct megasas_instance *instance);
255 megasas_init_ctrl_params(struct megasas_instance *instance);
257 u32 megasas_readl(struct megasas_instance *instance,
258 const volatile void __iomem *addr)
262 * Due to a HW errata in Aero controllers, reads to certain
263 * Fusion registers could intermittently return all zeroes.
264 * This behavior is transient in nature and subsequent reads will
265 * return valid value. As a workaround in driver, retry readl for
266 * up to thirty times until a non-zero value is read.
268 if (instance->adapter_type == AERO_SERIES) {
270 ret_val = readl(addr);
272 } while (ret_val == 0 && i < 30);
280 * megasas_set_dma_settings - Populate DMA address, length and flags for DCMDs
281 * @instance: Adapter soft state
282 * @dcmd: DCMD frame inside MFI command
283 * @dma_addr: DMA address of buffer to be passed to FW
284 * @dma_len: Length of DMA buffer to be passed to FW
287 void megasas_set_dma_settings(struct megasas_instance *instance,
288 struct megasas_dcmd_frame *dcmd,
289 dma_addr_t dma_addr, u32 dma_len)
291 if (instance->consistent_mask_64bit) {
292 dcmd->sgl.sge64[0].phys_addr = cpu_to_le64(dma_addr);
293 dcmd->sgl.sge64[0].length = cpu_to_le32(dma_len);
294 dcmd->flags = cpu_to_le16(dcmd->flags | MFI_FRAME_SGL64);
297 dcmd->sgl.sge32[0].phys_addr =
298 cpu_to_le32(lower_32_bits(dma_addr));
299 dcmd->sgl.sge32[0].length = cpu_to_le32(dma_len);
300 dcmd->flags = cpu_to_le16(dcmd->flags);
305 megasas_issue_dcmd(struct megasas_instance *instance, struct megasas_cmd *cmd)
307 instance->instancet->fire_cmd(instance,
308 cmd->frame_phys_addr, 0, instance->reg_set);
313 * megasas_get_cmd - Get a command from the free pool
314 * @instance: Adapter soft state
316 * Returns a free command from the pool
318 struct megasas_cmd *megasas_get_cmd(struct megasas_instance
322 struct megasas_cmd *cmd = NULL;
324 spin_lock_irqsave(&instance->mfi_pool_lock, flags);
326 if (!list_empty(&instance->cmd_pool)) {
327 cmd = list_entry((&instance->cmd_pool)->next,
328 struct megasas_cmd, list);
329 list_del_init(&cmd->list);
331 dev_err(&instance->pdev->dev, "Command pool empty!\n");
334 spin_unlock_irqrestore(&instance->mfi_pool_lock, flags);
339 * megasas_return_cmd - Return a cmd to free command pool
340 * @instance: Adapter soft state
341 * @cmd: Command packet to be returned to free command pool
344 megasas_return_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd)
348 struct megasas_cmd_fusion *cmd_fusion;
349 struct fusion_context *fusion = instance->ctrl_context;
351 /* This flag is used only for fusion adapter.
352 * Wait for Interrupt for Polled mode DCMD
354 if (cmd->flags & DRV_DCMD_POLLED_MODE)
357 spin_lock_irqsave(&instance->mfi_pool_lock, flags);
360 blk_tags = instance->max_scsi_cmds + cmd->index;
361 cmd_fusion = fusion->cmd_list[blk_tags];
362 megasas_return_cmd_fusion(instance, cmd_fusion);
365 cmd->frame_count = 0;
367 memset(cmd->frame, 0, instance->mfi_frame_size);
368 cmd->frame->io.context = cpu_to_le32(cmd->index);
369 if (!fusion && reset_devices)
370 cmd->frame->hdr.cmd = MFI_CMD_INVALID;
371 list_add(&cmd->list, (&instance->cmd_pool)->next);
373 spin_unlock_irqrestore(&instance->mfi_pool_lock, flags);
378 format_timestamp(uint32_t timestamp)
380 static char buffer[32];
382 if ((timestamp & 0xff000000) == 0xff000000)
383 snprintf(buffer, sizeof(buffer), "boot + %us", timestamp &
386 snprintf(buffer, sizeof(buffer), "%us", timestamp);
391 format_class(int8_t class)
393 static char buffer[6];
396 case MFI_EVT_CLASS_DEBUG:
398 case MFI_EVT_CLASS_PROGRESS:
400 case MFI_EVT_CLASS_INFO:
402 case MFI_EVT_CLASS_WARNING:
404 case MFI_EVT_CLASS_CRITICAL:
406 case MFI_EVT_CLASS_FATAL:
408 case MFI_EVT_CLASS_DEAD:
411 snprintf(buffer, sizeof(buffer), "%d", class);
417 * megasas_decode_evt: Decode FW AEN event and print critical event
419 * @instance: Adapter soft state
422 megasas_decode_evt(struct megasas_instance *instance)
424 struct megasas_evt_detail *evt_detail = instance->evt_detail;
425 union megasas_evt_class_locale class_locale;
426 class_locale.word = le32_to_cpu(evt_detail->cl.word);
428 if ((event_log_level < MFI_EVT_CLASS_DEBUG) ||
429 (event_log_level > MFI_EVT_CLASS_DEAD)) {
430 printk(KERN_WARNING "megaraid_sas: provided event log level is out of range, setting it to default 2(CLASS_CRITICAL), permissible range is: -2 to 4\n");
431 event_log_level = MFI_EVT_CLASS_CRITICAL;
434 if (class_locale.members.class >= event_log_level)
435 dev_info(&instance->pdev->dev, "%d (%s/0x%04x/%s) - %s\n",
436 le32_to_cpu(evt_detail->seq_num),
437 format_timestamp(le32_to_cpu(evt_detail->time_stamp)),
438 (class_locale.members.locale),
439 format_class(class_locale.members.class),
440 evt_detail->description);
442 if (megasas_dbg_lvl & LD_PD_DEBUG)
443 dev_info(&instance->pdev->dev,
444 "evt_detail.args.ld.target_id/index %d/%d\n",
445 evt_detail->args.ld.target_id, evt_detail->args.ld.ld_index);
450 * The following functions are defined for xscale
451 * (deviceid : 1064R, PERC5) controllers
455 * megasas_enable_intr_xscale - Enables interrupts
456 * @instance: Adapter soft state
459 megasas_enable_intr_xscale(struct megasas_instance *instance)
461 struct megasas_register_set __iomem *regs;
463 regs = instance->reg_set;
464 writel(0, &(regs)->outbound_intr_mask);
466 /* Dummy readl to force pci flush */
467 readl(®s->outbound_intr_mask);
471 * megasas_disable_intr_xscale -Disables interrupt
472 * @instance: Adapter soft state
475 megasas_disable_intr_xscale(struct megasas_instance *instance)
477 struct megasas_register_set __iomem *regs;
480 regs = instance->reg_set;
481 writel(mask, ®s->outbound_intr_mask);
482 /* Dummy readl to force pci flush */
483 readl(®s->outbound_intr_mask);
487 * megasas_read_fw_status_reg_xscale - returns the current FW status value
488 * @instance: Adapter soft state
491 megasas_read_fw_status_reg_xscale(struct megasas_instance *instance)
493 return readl(&instance->reg_set->outbound_msg_0);
496 * megasas_clear_intr_xscale - Check & clear interrupt
497 * @instance: Adapter soft state
500 megasas_clear_intr_xscale(struct megasas_instance *instance)
504 struct megasas_register_set __iomem *regs;
505 regs = instance->reg_set;
508 * Check if it is our interrupt
510 status = readl(®s->outbound_intr_status);
512 if (status & MFI_OB_INTR_STATUS_MASK)
513 mfiStatus = MFI_INTR_FLAG_REPLY_MESSAGE;
514 if (status & MFI_XSCALE_OMR0_CHANGE_INTERRUPT)
515 mfiStatus |= MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE;
518 * Clear the interrupt by writing back the same value
521 writel(status, ®s->outbound_intr_status);
523 /* Dummy readl to force pci flush */
524 readl(®s->outbound_intr_status);
530 * megasas_fire_cmd_xscale - Sends command to the FW
531 * @instance: Adapter soft state
532 * @frame_phys_addr : Physical address of cmd
533 * @frame_count : Number of frames for the command
534 * @regs : MFI register set
537 megasas_fire_cmd_xscale(struct megasas_instance *instance,
538 dma_addr_t frame_phys_addr,
540 struct megasas_register_set __iomem *regs)
544 spin_lock_irqsave(&instance->hba_lock, flags);
545 writel((frame_phys_addr >> 3)|(frame_count),
546 &(regs)->inbound_queue_port);
547 spin_unlock_irqrestore(&instance->hba_lock, flags);
551 * megasas_adp_reset_xscale - For controller reset
552 * @instance: Adapter soft state
553 * @regs: MFI register set
556 megasas_adp_reset_xscale(struct megasas_instance *instance,
557 struct megasas_register_set __iomem *regs)
562 writel(MFI_ADP_RESET, ®s->inbound_doorbell);
564 for (i = 0; i < 3; i++)
565 msleep(1000); /* sleep for 3 secs */
567 pci_read_config_dword(instance->pdev, MFI_1068_PCSR_OFFSET, &pcidata);
568 dev_notice(&instance->pdev->dev, "pcidata = %x\n", pcidata);
570 dev_notice(&instance->pdev->dev, "mfi 1068 offset read=%x\n", pcidata);
572 pci_write_config_dword(instance->pdev,
573 MFI_1068_PCSR_OFFSET, pcidata);
575 for (i = 0; i < 2; i++)
576 msleep(1000); /* need to wait 2 secs again */
579 pci_read_config_dword(instance->pdev,
580 MFI_1068_FW_HANDSHAKE_OFFSET, &pcidata);
581 dev_notice(&instance->pdev->dev, "1068 offset handshake read=%x\n", pcidata);
582 if ((pcidata & 0xffff0000) == MFI_1068_FW_READY) {
583 dev_notice(&instance->pdev->dev, "1068 offset pcidt=%x\n", pcidata);
585 pci_write_config_dword(instance->pdev,
586 MFI_1068_FW_HANDSHAKE_OFFSET, pcidata);
593 * megasas_check_reset_xscale - For controller reset check
594 * @instance: Adapter soft state
595 * @regs: MFI register set
598 megasas_check_reset_xscale(struct megasas_instance *instance,
599 struct megasas_register_set __iomem *regs)
601 if ((atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) &&
602 (le32_to_cpu(*instance->consumer) ==
603 MEGASAS_ADPRESET_INPROG_SIGN))
608 static struct megasas_instance_template megasas_instance_template_xscale = {
610 .fire_cmd = megasas_fire_cmd_xscale,
611 .enable_intr = megasas_enable_intr_xscale,
612 .disable_intr = megasas_disable_intr_xscale,
613 .clear_intr = megasas_clear_intr_xscale,
614 .read_fw_status_reg = megasas_read_fw_status_reg_xscale,
615 .adp_reset = megasas_adp_reset_xscale,
616 .check_reset = megasas_check_reset_xscale,
617 .service_isr = megasas_isr,
618 .tasklet = megasas_complete_cmd_dpc,
619 .init_adapter = megasas_init_adapter_mfi,
620 .build_and_issue_cmd = megasas_build_and_issue_cmd,
621 .issue_dcmd = megasas_issue_dcmd,
625 * This is the end of set of functions & definitions specific
626 * to xscale (deviceid : 1064R, PERC5) controllers
630 * The following functions are defined for ppc (deviceid : 0x60)
635 * megasas_enable_intr_ppc - Enables interrupts
636 * @instance: Adapter soft state
639 megasas_enable_intr_ppc(struct megasas_instance *instance)
641 struct megasas_register_set __iomem *regs;
643 regs = instance->reg_set;
644 writel(0xFFFFFFFF, &(regs)->outbound_doorbell_clear);
646 writel(~0x80000000, &(regs)->outbound_intr_mask);
648 /* Dummy readl to force pci flush */
649 readl(®s->outbound_intr_mask);
653 * megasas_disable_intr_ppc - Disable interrupt
654 * @instance: Adapter soft state
657 megasas_disable_intr_ppc(struct megasas_instance *instance)
659 struct megasas_register_set __iomem *regs;
660 u32 mask = 0xFFFFFFFF;
662 regs = instance->reg_set;
663 writel(mask, ®s->outbound_intr_mask);
664 /* Dummy readl to force pci flush */
665 readl(®s->outbound_intr_mask);
669 * megasas_read_fw_status_reg_ppc - returns the current FW status value
670 * @instance: Adapter soft state
673 megasas_read_fw_status_reg_ppc(struct megasas_instance *instance)
675 return readl(&instance->reg_set->outbound_scratch_pad_0);
679 * megasas_clear_intr_ppc - Check & clear interrupt
680 * @instance: Adapter soft state
683 megasas_clear_intr_ppc(struct megasas_instance *instance)
685 u32 status, mfiStatus = 0;
686 struct megasas_register_set __iomem *regs;
687 regs = instance->reg_set;
690 * Check if it is our interrupt
692 status = readl(®s->outbound_intr_status);
694 if (status & MFI_REPLY_1078_MESSAGE_INTERRUPT)
695 mfiStatus = MFI_INTR_FLAG_REPLY_MESSAGE;
697 if (status & MFI_G2_OUTBOUND_DOORBELL_CHANGE_INTERRUPT)
698 mfiStatus |= MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE;
701 * Clear the interrupt by writing back the same value
703 writel(status, ®s->outbound_doorbell_clear);
705 /* Dummy readl to force pci flush */
706 readl(®s->outbound_doorbell_clear);
712 * megasas_fire_cmd_ppc - Sends command to the FW
713 * @instance: Adapter soft state
714 * @frame_phys_addr: Physical address of cmd
715 * @frame_count: Number of frames for the command
716 * @regs: MFI register set
719 megasas_fire_cmd_ppc(struct megasas_instance *instance,
720 dma_addr_t frame_phys_addr,
722 struct megasas_register_set __iomem *regs)
726 spin_lock_irqsave(&instance->hba_lock, flags);
727 writel((frame_phys_addr | (frame_count<<1))|1,
728 &(regs)->inbound_queue_port);
729 spin_unlock_irqrestore(&instance->hba_lock, flags);
733 * megasas_check_reset_ppc - For controller reset check
734 * @instance: Adapter soft state
735 * @regs: MFI register set
738 megasas_check_reset_ppc(struct megasas_instance *instance,
739 struct megasas_register_set __iomem *regs)
741 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL)
747 static struct megasas_instance_template megasas_instance_template_ppc = {
749 .fire_cmd = megasas_fire_cmd_ppc,
750 .enable_intr = megasas_enable_intr_ppc,
751 .disable_intr = megasas_disable_intr_ppc,
752 .clear_intr = megasas_clear_intr_ppc,
753 .read_fw_status_reg = megasas_read_fw_status_reg_ppc,
754 .adp_reset = megasas_adp_reset_xscale,
755 .check_reset = megasas_check_reset_ppc,
756 .service_isr = megasas_isr,
757 .tasklet = megasas_complete_cmd_dpc,
758 .init_adapter = megasas_init_adapter_mfi,
759 .build_and_issue_cmd = megasas_build_and_issue_cmd,
760 .issue_dcmd = megasas_issue_dcmd,
764 * megasas_enable_intr_skinny - Enables interrupts
765 * @instance: Adapter soft state
768 megasas_enable_intr_skinny(struct megasas_instance *instance)
770 struct megasas_register_set __iomem *regs;
772 regs = instance->reg_set;
773 writel(0xFFFFFFFF, &(regs)->outbound_intr_mask);
775 writel(~MFI_SKINNY_ENABLE_INTERRUPT_MASK, &(regs)->outbound_intr_mask);
777 /* Dummy readl to force pci flush */
778 readl(®s->outbound_intr_mask);
782 * megasas_disable_intr_skinny - Disables interrupt
783 * @instance: Adapter soft state
786 megasas_disable_intr_skinny(struct megasas_instance *instance)
788 struct megasas_register_set __iomem *regs;
789 u32 mask = 0xFFFFFFFF;
791 regs = instance->reg_set;
792 writel(mask, ®s->outbound_intr_mask);
793 /* Dummy readl to force pci flush */
794 readl(®s->outbound_intr_mask);
798 * megasas_read_fw_status_reg_skinny - returns the current FW status value
799 * @instance: Adapter soft state
802 megasas_read_fw_status_reg_skinny(struct megasas_instance *instance)
804 return readl(&instance->reg_set->outbound_scratch_pad_0);
808 * megasas_clear_intr_skinny - Check & clear interrupt
809 * @instance: Adapter soft state
812 megasas_clear_intr_skinny(struct megasas_instance *instance)
816 struct megasas_register_set __iomem *regs;
817 regs = instance->reg_set;
820 * Check if it is our interrupt
822 status = readl(®s->outbound_intr_status);
824 if (!(status & MFI_SKINNY_ENABLE_INTERRUPT_MASK)) {
829 * Check if it is our interrupt
831 if ((megasas_read_fw_status_reg_skinny(instance) & MFI_STATE_MASK) ==
833 mfiStatus = MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE;
835 mfiStatus = MFI_INTR_FLAG_REPLY_MESSAGE;
838 * Clear the interrupt by writing back the same value
840 writel(status, ®s->outbound_intr_status);
843 * dummy read to flush PCI
845 readl(®s->outbound_intr_status);
851 * megasas_fire_cmd_skinny - Sends command to the FW
852 * @instance: Adapter soft state
853 * @frame_phys_addr: Physical address of cmd
854 * @frame_count: Number of frames for the command
855 * @regs: MFI register set
858 megasas_fire_cmd_skinny(struct megasas_instance *instance,
859 dma_addr_t frame_phys_addr,
861 struct megasas_register_set __iomem *regs)
865 spin_lock_irqsave(&instance->hba_lock, flags);
866 writel(upper_32_bits(frame_phys_addr),
867 &(regs)->inbound_high_queue_port);
868 writel((lower_32_bits(frame_phys_addr) | (frame_count<<1))|1,
869 &(regs)->inbound_low_queue_port);
870 spin_unlock_irqrestore(&instance->hba_lock, flags);
874 * megasas_check_reset_skinny - For controller reset check
875 * @instance: Adapter soft state
876 * @regs: MFI register set
879 megasas_check_reset_skinny(struct megasas_instance *instance,
880 struct megasas_register_set __iomem *regs)
882 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL)
888 static struct megasas_instance_template megasas_instance_template_skinny = {
890 .fire_cmd = megasas_fire_cmd_skinny,
891 .enable_intr = megasas_enable_intr_skinny,
892 .disable_intr = megasas_disable_intr_skinny,
893 .clear_intr = megasas_clear_intr_skinny,
894 .read_fw_status_reg = megasas_read_fw_status_reg_skinny,
895 .adp_reset = megasas_adp_reset_gen2,
896 .check_reset = megasas_check_reset_skinny,
897 .service_isr = megasas_isr,
898 .tasklet = megasas_complete_cmd_dpc,
899 .init_adapter = megasas_init_adapter_mfi,
900 .build_and_issue_cmd = megasas_build_and_issue_cmd,
901 .issue_dcmd = megasas_issue_dcmd,
906 * The following functions are defined for gen2 (deviceid : 0x78 0x79)
911 * megasas_enable_intr_gen2 - Enables interrupts
912 * @instance: Adapter soft state
915 megasas_enable_intr_gen2(struct megasas_instance *instance)
917 struct megasas_register_set __iomem *regs;
919 regs = instance->reg_set;
920 writel(0xFFFFFFFF, &(regs)->outbound_doorbell_clear);
922 /* write ~0x00000005 (4 & 1) to the intr mask*/
923 writel(~MFI_GEN2_ENABLE_INTERRUPT_MASK, &(regs)->outbound_intr_mask);
925 /* Dummy readl to force pci flush */
926 readl(®s->outbound_intr_mask);
930 * megasas_disable_intr_gen2 - Disables interrupt
931 * @instance: Adapter soft state
934 megasas_disable_intr_gen2(struct megasas_instance *instance)
936 struct megasas_register_set __iomem *regs;
937 u32 mask = 0xFFFFFFFF;
939 regs = instance->reg_set;
940 writel(mask, ®s->outbound_intr_mask);
941 /* Dummy readl to force pci flush */
942 readl(®s->outbound_intr_mask);
946 * megasas_read_fw_status_reg_gen2 - returns the current FW status value
947 * @instance: Adapter soft state
950 megasas_read_fw_status_reg_gen2(struct megasas_instance *instance)
952 return readl(&instance->reg_set->outbound_scratch_pad_0);
956 * megasas_clear_intr_gen2 - Check & clear interrupt
957 * @instance: Adapter soft state
960 megasas_clear_intr_gen2(struct megasas_instance *instance)
964 struct megasas_register_set __iomem *regs;
965 regs = instance->reg_set;
968 * Check if it is our interrupt
970 status = readl(®s->outbound_intr_status);
972 if (status & MFI_INTR_FLAG_REPLY_MESSAGE) {
973 mfiStatus = MFI_INTR_FLAG_REPLY_MESSAGE;
975 if (status & MFI_G2_OUTBOUND_DOORBELL_CHANGE_INTERRUPT) {
976 mfiStatus |= MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE;
980 * Clear the interrupt by writing back the same value
983 writel(status, ®s->outbound_doorbell_clear);
985 /* Dummy readl to force pci flush */
986 readl(®s->outbound_intr_status);
992 * megasas_fire_cmd_gen2 - Sends command to the FW
993 * @instance: Adapter soft state
994 * @frame_phys_addr: Physical address of cmd
995 * @frame_count: Number of frames for the command
996 * @regs: MFI register set
999 megasas_fire_cmd_gen2(struct megasas_instance *instance,
1000 dma_addr_t frame_phys_addr,
1002 struct megasas_register_set __iomem *regs)
1004 unsigned long flags;
1006 spin_lock_irqsave(&instance->hba_lock, flags);
1007 writel((frame_phys_addr | (frame_count<<1))|1,
1008 &(regs)->inbound_queue_port);
1009 spin_unlock_irqrestore(&instance->hba_lock, flags);
1013 * megasas_adp_reset_gen2 - For controller reset
1014 * @instance: Adapter soft state
1015 * @reg_set: MFI register set
1018 megasas_adp_reset_gen2(struct megasas_instance *instance,
1019 struct megasas_register_set __iomem *reg_set)
1023 u32 __iomem *seq_offset = ®_set->seq_offset;
1024 u32 __iomem *hostdiag_offset = ®_set->host_diag;
1026 if (instance->instancet == &megasas_instance_template_skinny) {
1027 seq_offset = ®_set->fusion_seq_offset;
1028 hostdiag_offset = ®_set->fusion_host_diag;
1031 writel(0, seq_offset);
1032 writel(4, seq_offset);
1033 writel(0xb, seq_offset);
1034 writel(2, seq_offset);
1035 writel(7, seq_offset);
1036 writel(0xd, seq_offset);
1040 HostDiag = (u32)readl(hostdiag_offset);
1042 while (!(HostDiag & DIAG_WRITE_ENABLE)) {
1044 HostDiag = (u32)readl(hostdiag_offset);
1045 dev_notice(&instance->pdev->dev, "RESETGEN2: retry=%x, hostdiag=%x\n",
1053 dev_notice(&instance->pdev->dev, "ADP_RESET_GEN2: HostDiag=%x\n", HostDiag);
1055 writel((HostDiag | DIAG_RESET_ADAPTER), hostdiag_offset);
1059 HostDiag = (u32)readl(hostdiag_offset);
1060 while (HostDiag & DIAG_RESET_ADAPTER) {
1062 HostDiag = (u32)readl(hostdiag_offset);
1063 dev_notice(&instance->pdev->dev, "RESET_GEN2: retry=%x, hostdiag=%x\n",
1066 if (retry++ >= 1000)
1074 * megasas_check_reset_gen2 - For controller reset check
1075 * @instance: Adapter soft state
1076 * @regs: MFI register set
1079 megasas_check_reset_gen2(struct megasas_instance *instance,
1080 struct megasas_register_set __iomem *regs)
1082 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL)
1088 static struct megasas_instance_template megasas_instance_template_gen2 = {
1090 .fire_cmd = megasas_fire_cmd_gen2,
1091 .enable_intr = megasas_enable_intr_gen2,
1092 .disable_intr = megasas_disable_intr_gen2,
1093 .clear_intr = megasas_clear_intr_gen2,
1094 .read_fw_status_reg = megasas_read_fw_status_reg_gen2,
1095 .adp_reset = megasas_adp_reset_gen2,
1096 .check_reset = megasas_check_reset_gen2,
1097 .service_isr = megasas_isr,
1098 .tasklet = megasas_complete_cmd_dpc,
1099 .init_adapter = megasas_init_adapter_mfi,
1100 .build_and_issue_cmd = megasas_build_and_issue_cmd,
1101 .issue_dcmd = megasas_issue_dcmd,
1105 * This is the end of set of functions & definitions
1106 * specific to gen2 (deviceid : 0x78, 0x79) controllers
1110 * Template added for TB (Fusion)
1112 extern struct megasas_instance_template megasas_instance_template_fusion;
1115 * megasas_issue_polled - Issues a polling command
1116 * @instance: Adapter soft state
1117 * @cmd: Command packet to be issued
1119 * For polling, MFI requires the cmd_status to be set to MFI_STAT_INVALID_STATUS before posting.
1122 megasas_issue_polled(struct megasas_instance *instance, struct megasas_cmd *cmd)
1124 struct megasas_header *frame_hdr = &cmd->frame->hdr;
1126 frame_hdr->cmd_status = MFI_STAT_INVALID_STATUS;
1127 frame_hdr->flags |= cpu_to_le16(MFI_FRAME_DONT_POST_IN_REPLY_QUEUE);
1129 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) {
1130 dev_err(&instance->pdev->dev, "Failed from %s %d\n",
1131 __func__, __LINE__);
1135 instance->instancet->issue_dcmd(instance, cmd);
1137 return wait_and_poll(instance, cmd, instance->requestorId ?
1138 MEGASAS_ROUTINE_WAIT_TIME_VF : MFI_IO_TIMEOUT_SECS);
1142 * megasas_issue_blocked_cmd - Synchronous wrapper around regular FW cmds
1143 * @instance: Adapter soft state
1144 * @cmd: Command to be issued
1145 * @timeout: Timeout in seconds
1147 * This function waits on an event for the command to be returned from ISR.
1148 * Max wait time is MEGASAS_INTERNAL_CMD_WAIT_TIME secs
1149 * Used to issue ioctl commands.
1152 megasas_issue_blocked_cmd(struct megasas_instance *instance,
1153 struct megasas_cmd *cmd, int timeout)
1156 cmd->cmd_status_drv = DCMD_INIT;
1158 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) {
1159 dev_err(&instance->pdev->dev, "Failed from %s %d\n",
1160 __func__, __LINE__);
1164 instance->instancet->issue_dcmd(instance, cmd);
1167 ret = wait_event_timeout(instance->int_cmd_wait_q,
1168 cmd->cmd_status_drv != DCMD_INIT, timeout * HZ);
1170 dev_err(&instance->pdev->dev,
1171 "DCMD(opcode: 0x%x) is timed out, func:%s\n",
1172 cmd->frame->dcmd.opcode, __func__);
1173 return DCMD_TIMEOUT;
1176 wait_event(instance->int_cmd_wait_q,
1177 cmd->cmd_status_drv != DCMD_INIT);
1179 return cmd->cmd_status_drv;
1183 * megasas_issue_blocked_abort_cmd - Aborts previously issued cmd
1184 * @instance: Adapter soft state
1185 * @cmd_to_abort: Previously issued cmd to be aborted
1186 * @timeout: Timeout in seconds
1188 * MFI firmware can abort previously issued AEN comamnd (automatic event
1189 * notification). The megasas_issue_blocked_abort_cmd() issues such abort
1190 * cmd and waits for return status.
1191 * Max wait time is MEGASAS_INTERNAL_CMD_WAIT_TIME secs
1194 megasas_issue_blocked_abort_cmd(struct megasas_instance *instance,
1195 struct megasas_cmd *cmd_to_abort, int timeout)
1197 struct megasas_cmd *cmd;
1198 struct megasas_abort_frame *abort_fr;
1202 cmd = megasas_get_cmd(instance);
1207 abort_fr = &cmd->frame->abort;
1210 * Prepare and issue the abort frame
1212 abort_fr->cmd = MFI_CMD_ABORT;
1213 abort_fr->cmd_status = MFI_STAT_INVALID_STATUS;
1214 abort_fr->flags = cpu_to_le16(0);
1215 abort_fr->abort_context = cpu_to_le32(cmd_to_abort->index);
1216 abort_fr->abort_mfi_phys_addr_lo =
1217 cpu_to_le32(lower_32_bits(cmd_to_abort->frame_phys_addr));
1218 abort_fr->abort_mfi_phys_addr_hi =
1219 cpu_to_le32(upper_32_bits(cmd_to_abort->frame_phys_addr));
1222 cmd->cmd_status_drv = DCMD_INIT;
1224 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) {
1225 dev_err(&instance->pdev->dev, "Failed from %s %d\n",
1226 __func__, __LINE__);
1230 instance->instancet->issue_dcmd(instance, cmd);
1233 ret = wait_event_timeout(instance->abort_cmd_wait_q,
1234 cmd->cmd_status_drv != DCMD_INIT, timeout * HZ);
1236 opcode = cmd_to_abort->frame->dcmd.opcode;
1237 dev_err(&instance->pdev->dev,
1238 "Abort(to be aborted DCMD opcode: 0x%x) is timed out func:%s\n",
1240 return DCMD_TIMEOUT;
1243 wait_event(instance->abort_cmd_wait_q,
1244 cmd->cmd_status_drv != DCMD_INIT);
1248 megasas_return_cmd(instance, cmd);
1249 return cmd->cmd_status_drv;
1253 * megasas_make_sgl32 - Prepares 32-bit SGL
1254 * @instance: Adapter soft state
1255 * @scp: SCSI command from the mid-layer
1256 * @mfi_sgl: SGL to be filled in
1258 * If successful, this function returns the number of SG elements. Otherwise,
1262 megasas_make_sgl32(struct megasas_instance *instance, struct scsi_cmnd *scp,
1263 union megasas_sgl *mfi_sgl)
1267 struct scatterlist *os_sgl;
1269 sge_count = scsi_dma_map(scp);
1270 BUG_ON(sge_count < 0);
1273 scsi_for_each_sg(scp, os_sgl, sge_count, i) {
1274 mfi_sgl->sge32[i].length = cpu_to_le32(sg_dma_len(os_sgl));
1275 mfi_sgl->sge32[i].phys_addr = cpu_to_le32(sg_dma_address(os_sgl));
1282 * megasas_make_sgl64 - Prepares 64-bit SGL
1283 * @instance: Adapter soft state
1284 * @scp: SCSI command from the mid-layer
1285 * @mfi_sgl: SGL to be filled in
1287 * If successful, this function returns the number of SG elements. Otherwise,
1291 megasas_make_sgl64(struct megasas_instance *instance, struct scsi_cmnd *scp,
1292 union megasas_sgl *mfi_sgl)
1296 struct scatterlist *os_sgl;
1298 sge_count = scsi_dma_map(scp);
1299 BUG_ON(sge_count < 0);
1302 scsi_for_each_sg(scp, os_sgl, sge_count, i) {
1303 mfi_sgl->sge64[i].length = cpu_to_le32(sg_dma_len(os_sgl));
1304 mfi_sgl->sge64[i].phys_addr = cpu_to_le64(sg_dma_address(os_sgl));
1311 * megasas_make_sgl_skinny - Prepares IEEE SGL
1312 * @instance: Adapter soft state
1313 * @scp: SCSI command from the mid-layer
1314 * @mfi_sgl: SGL to be filled in
1316 * If successful, this function returns the number of SG elements. Otherwise,
1320 megasas_make_sgl_skinny(struct megasas_instance *instance,
1321 struct scsi_cmnd *scp, union megasas_sgl *mfi_sgl)
1325 struct scatterlist *os_sgl;
1327 sge_count = scsi_dma_map(scp);
1330 scsi_for_each_sg(scp, os_sgl, sge_count, i) {
1331 mfi_sgl->sge_skinny[i].length =
1332 cpu_to_le32(sg_dma_len(os_sgl));
1333 mfi_sgl->sge_skinny[i].phys_addr =
1334 cpu_to_le64(sg_dma_address(os_sgl));
1335 mfi_sgl->sge_skinny[i].flag = cpu_to_le32(0);
1342 * megasas_get_frame_count - Computes the number of frames
1343 * @frame_type : type of frame- io or pthru frame
1344 * @sge_count : number of sg elements
1346 * Returns the number of frames required for numnber of sge's (sge_count)
1349 static u32 megasas_get_frame_count(struct megasas_instance *instance,
1350 u8 sge_count, u8 frame_type)
1355 u32 frame_count = 0;
1357 sge_sz = (IS_DMA64) ? sizeof(struct megasas_sge64) :
1358 sizeof(struct megasas_sge32);
1360 if (instance->flag_ieee) {
1361 sge_sz = sizeof(struct megasas_sge_skinny);
1365 * Main frame can contain 2 SGEs for 64-bit SGLs and
1366 * 3 SGEs for 32-bit SGLs for ldio &
1367 * 1 SGEs for 64-bit SGLs and
1368 * 2 SGEs for 32-bit SGLs for pthru frame
1370 if (unlikely(frame_type == PTHRU_FRAME)) {
1371 if (instance->flag_ieee == 1) {
1372 num_cnt = sge_count - 1;
1373 } else if (IS_DMA64)
1374 num_cnt = sge_count - 1;
1376 num_cnt = sge_count - 2;
1378 if (instance->flag_ieee == 1) {
1379 num_cnt = sge_count - 1;
1380 } else if (IS_DMA64)
1381 num_cnt = sge_count - 2;
1383 num_cnt = sge_count - 3;
1387 sge_bytes = sge_sz * num_cnt;
1389 frame_count = (sge_bytes / MEGAMFI_FRAME_SIZE) +
1390 ((sge_bytes % MEGAMFI_FRAME_SIZE) ? 1 : 0) ;
1395 if (frame_count > 7)
1401 * megasas_build_dcdb - Prepares a direct cdb (DCDB) command
1402 * @instance: Adapter soft state
1403 * @scp: SCSI command
1404 * @cmd: Command to be prepared in
1406 * This function prepares CDB commands. These are typcially pass-through
1407 * commands to the devices.
1410 megasas_build_dcdb(struct megasas_instance *instance, struct scsi_cmnd *scp,
1411 struct megasas_cmd *cmd)
1416 struct megasas_pthru_frame *pthru;
1418 is_logical = MEGASAS_IS_LOGICAL(scp->device);
1419 device_id = MEGASAS_DEV_INDEX(scp);
1420 pthru = (struct megasas_pthru_frame *)cmd->frame;
1422 if (scp->sc_data_direction == DMA_TO_DEVICE)
1423 flags = MFI_FRAME_DIR_WRITE;
1424 else if (scp->sc_data_direction == DMA_FROM_DEVICE)
1425 flags = MFI_FRAME_DIR_READ;
1426 else if (scp->sc_data_direction == DMA_NONE)
1427 flags = MFI_FRAME_DIR_NONE;
1429 if (instance->flag_ieee == 1) {
1430 flags |= MFI_FRAME_IEEE;
1434 * Prepare the DCDB frame
1436 pthru->cmd = (is_logical) ? MFI_CMD_LD_SCSI_IO : MFI_CMD_PD_SCSI_IO;
1437 pthru->cmd_status = 0x0;
1438 pthru->scsi_status = 0x0;
1439 pthru->target_id = device_id;
1440 pthru->lun = scp->device->lun;
1441 pthru->cdb_len = scp->cmd_len;
1444 pthru->flags = cpu_to_le16(flags);
1445 pthru->data_xfer_len = cpu_to_le32(scsi_bufflen(scp));
1447 memcpy(pthru->cdb, scp->cmnd, scp->cmd_len);
1450 * If the command is for the tape device, set the
1451 * pthru timeout to the os layer timeout value.
1453 if (scp->device->type == TYPE_TAPE) {
1454 if (scsi_cmd_to_rq(scp)->timeout / HZ > 0xFFFF)
1455 pthru->timeout = cpu_to_le16(0xFFFF);
1457 pthru->timeout = cpu_to_le16(scsi_cmd_to_rq(scp)->timeout / HZ);
1463 if (instance->flag_ieee == 1) {
1464 pthru->flags |= cpu_to_le16(MFI_FRAME_SGL64);
1465 pthru->sge_count = megasas_make_sgl_skinny(instance, scp,
1467 } else if (IS_DMA64) {
1468 pthru->flags |= cpu_to_le16(MFI_FRAME_SGL64);
1469 pthru->sge_count = megasas_make_sgl64(instance, scp,
1472 pthru->sge_count = megasas_make_sgl32(instance, scp,
1475 if (pthru->sge_count > instance->max_num_sge) {
1476 dev_err(&instance->pdev->dev, "DCDB too many SGE NUM=%x\n",
1482 * Sense info specific
1484 pthru->sense_len = SCSI_SENSE_BUFFERSIZE;
1485 pthru->sense_buf_phys_addr_hi =
1486 cpu_to_le32(upper_32_bits(cmd->sense_phys_addr));
1487 pthru->sense_buf_phys_addr_lo =
1488 cpu_to_le32(lower_32_bits(cmd->sense_phys_addr));
1491 * Compute the total number of frames this command consumes. FW uses
1492 * this number to pull sufficient number of frames from host memory.
1494 cmd->frame_count = megasas_get_frame_count(instance, pthru->sge_count,
1497 return cmd->frame_count;
1501 * megasas_build_ldio - Prepares IOs to logical devices
1502 * @instance: Adapter soft state
1503 * @scp: SCSI command
1504 * @cmd: Command to be prepared
1506 * Frames (and accompanying SGLs) for regular SCSI IOs use this function.
1509 megasas_build_ldio(struct megasas_instance *instance, struct scsi_cmnd *scp,
1510 struct megasas_cmd *cmd)
1513 u8 sc = scp->cmnd[0];
1515 struct megasas_io_frame *ldio;
1517 device_id = MEGASAS_DEV_INDEX(scp);
1518 ldio = (struct megasas_io_frame *)cmd->frame;
1520 if (scp->sc_data_direction == DMA_TO_DEVICE)
1521 flags = MFI_FRAME_DIR_WRITE;
1522 else if (scp->sc_data_direction == DMA_FROM_DEVICE)
1523 flags = MFI_FRAME_DIR_READ;
1525 if (instance->flag_ieee == 1) {
1526 flags |= MFI_FRAME_IEEE;
1530 * Prepare the Logical IO frame: 2nd bit is zero for all read cmds
1532 ldio->cmd = (sc & 0x02) ? MFI_CMD_LD_WRITE : MFI_CMD_LD_READ;
1533 ldio->cmd_status = 0x0;
1534 ldio->scsi_status = 0x0;
1535 ldio->target_id = device_id;
1537 ldio->reserved_0 = 0;
1539 ldio->flags = cpu_to_le16(flags);
1540 ldio->start_lba_hi = 0;
1541 ldio->access_byte = (scp->cmd_len != 6) ? scp->cmnd[1] : 0;
1544 * 6-byte READ(0x08) or WRITE(0x0A) cdb
1546 if (scp->cmd_len == 6) {
1547 ldio->lba_count = cpu_to_le32((u32) scp->cmnd[4]);
1548 ldio->start_lba_lo = cpu_to_le32(((u32) scp->cmnd[1] << 16) |
1549 ((u32) scp->cmnd[2] << 8) |
1550 (u32) scp->cmnd[3]);
1552 ldio->start_lba_lo &= cpu_to_le32(0x1FFFFF);
1556 * 10-byte READ(0x28) or WRITE(0x2A) cdb
1558 else if (scp->cmd_len == 10) {
1559 ldio->lba_count = cpu_to_le32((u32) scp->cmnd[8] |
1560 ((u32) scp->cmnd[7] << 8));
1561 ldio->start_lba_lo = cpu_to_le32(((u32) scp->cmnd[2] << 24) |
1562 ((u32) scp->cmnd[3] << 16) |
1563 ((u32) scp->cmnd[4] << 8) |
1564 (u32) scp->cmnd[5]);
1568 * 12-byte READ(0xA8) or WRITE(0xAA) cdb
1570 else if (scp->cmd_len == 12) {
1571 ldio->lba_count = cpu_to_le32(((u32) scp->cmnd[6] << 24) |
1572 ((u32) scp->cmnd[7] << 16) |
1573 ((u32) scp->cmnd[8] << 8) |
1574 (u32) scp->cmnd[9]);
1576 ldio->start_lba_lo = cpu_to_le32(((u32) scp->cmnd[2] << 24) |
1577 ((u32) scp->cmnd[3] << 16) |
1578 ((u32) scp->cmnd[4] << 8) |
1579 (u32) scp->cmnd[5]);
1583 * 16-byte READ(0x88) or WRITE(0x8A) cdb
1585 else if (scp->cmd_len == 16) {
1586 ldio->lba_count = cpu_to_le32(((u32) scp->cmnd[10] << 24) |
1587 ((u32) scp->cmnd[11] << 16) |
1588 ((u32) scp->cmnd[12] << 8) |
1589 (u32) scp->cmnd[13]);
1591 ldio->start_lba_lo = cpu_to_le32(((u32) scp->cmnd[6] << 24) |
1592 ((u32) scp->cmnd[7] << 16) |
1593 ((u32) scp->cmnd[8] << 8) |
1594 (u32) scp->cmnd[9]);
1596 ldio->start_lba_hi = cpu_to_le32(((u32) scp->cmnd[2] << 24) |
1597 ((u32) scp->cmnd[3] << 16) |
1598 ((u32) scp->cmnd[4] << 8) |
1599 (u32) scp->cmnd[5]);
1606 if (instance->flag_ieee) {
1607 ldio->flags |= cpu_to_le16(MFI_FRAME_SGL64);
1608 ldio->sge_count = megasas_make_sgl_skinny(instance, scp,
1610 } else if (IS_DMA64) {
1611 ldio->flags |= cpu_to_le16(MFI_FRAME_SGL64);
1612 ldio->sge_count = megasas_make_sgl64(instance, scp, &ldio->sgl);
1614 ldio->sge_count = megasas_make_sgl32(instance, scp, &ldio->sgl);
1616 if (ldio->sge_count > instance->max_num_sge) {
1617 dev_err(&instance->pdev->dev, "build_ld_io: sge_count = %x\n",
1623 * Sense info specific
1625 ldio->sense_len = SCSI_SENSE_BUFFERSIZE;
1626 ldio->sense_buf_phys_addr_hi = 0;
1627 ldio->sense_buf_phys_addr_lo = cpu_to_le32(cmd->sense_phys_addr);
1630 * Compute the total number of frames this command consumes. FW uses
1631 * this number to pull sufficient number of frames from host memory.
1633 cmd->frame_count = megasas_get_frame_count(instance,
1634 ldio->sge_count, IO_FRAME);
1636 return cmd->frame_count;
1640 * megasas_cmd_type - Checks if the cmd is for logical drive/sysPD
1641 * and whether it's RW or non RW
1642 * @cmd: SCSI command
1645 inline int megasas_cmd_type(struct scsi_cmnd *cmd)
1649 switch (cmd->cmnd[0]) {
1658 ret = (MEGASAS_IS_LOGICAL(cmd->device)) ?
1659 READ_WRITE_LDIO : READ_WRITE_SYSPDIO;
1662 ret = (MEGASAS_IS_LOGICAL(cmd->device)) ?
1663 NON_READ_WRITE_LDIO : NON_READ_WRITE_SYSPDIO;
1669 * megasas_dump_pending_frames - Dumps the frame address of all pending cmds
1671 * @instance: Adapter soft state
1674 megasas_dump_pending_frames(struct megasas_instance *instance)
1676 struct megasas_cmd *cmd;
1678 union megasas_sgl *mfi_sgl;
1679 struct megasas_io_frame *ldio;
1680 struct megasas_pthru_frame *pthru;
1682 u16 max_cmd = instance->max_fw_cmds;
1684 dev_err(&instance->pdev->dev, "[%d]: Dumping Frame Phys Address of all pending cmds in FW\n",instance->host->host_no);
1685 dev_err(&instance->pdev->dev, "[%d]: Total OS Pending cmds : %d\n",instance->host->host_no,atomic_read(&instance->fw_outstanding));
1687 dev_err(&instance->pdev->dev, "[%d]: 64 bit SGLs were sent to FW\n",instance->host->host_no);
1689 dev_err(&instance->pdev->dev, "[%d]: 32 bit SGLs were sent to FW\n",instance->host->host_no);
1691 dev_err(&instance->pdev->dev, "[%d]: Pending OS cmds in FW : \n",instance->host->host_no);
1692 for (i = 0; i < max_cmd; i++) {
1693 cmd = instance->cmd_list[i];
1696 dev_err(&instance->pdev->dev, "[%d]: Frame addr :0x%08lx : ",instance->host->host_no,(unsigned long)cmd->frame_phys_addr);
1697 if (megasas_cmd_type(cmd->scmd) == READ_WRITE_LDIO) {
1698 ldio = (struct megasas_io_frame *)cmd->frame;
1699 mfi_sgl = &ldio->sgl;
1700 sgcount = ldio->sge_count;
1701 dev_err(&instance->pdev->dev, "[%d]: frame count : 0x%x, Cmd : 0x%x, Tgt id : 0x%x,"
1702 " lba lo : 0x%x, lba_hi : 0x%x, sense_buf addr : 0x%x,sge count : 0x%x\n",
1703 instance->host->host_no, cmd->frame_count, ldio->cmd, ldio->target_id,
1704 le32_to_cpu(ldio->start_lba_lo), le32_to_cpu(ldio->start_lba_hi),
1705 le32_to_cpu(ldio->sense_buf_phys_addr_lo), sgcount);
1707 pthru = (struct megasas_pthru_frame *) cmd->frame;
1708 mfi_sgl = &pthru->sgl;
1709 sgcount = pthru->sge_count;
1710 dev_err(&instance->pdev->dev, "[%d]: frame count : 0x%x, Cmd : 0x%x, Tgt id : 0x%x, "
1711 "lun : 0x%x, cdb_len : 0x%x, data xfer len : 0x%x, sense_buf addr : 0x%x,sge count : 0x%x\n",
1712 instance->host->host_no, cmd->frame_count, pthru->cmd, pthru->target_id,
1713 pthru->lun, pthru->cdb_len, le32_to_cpu(pthru->data_xfer_len),
1714 le32_to_cpu(pthru->sense_buf_phys_addr_lo), sgcount);
1716 if (megasas_dbg_lvl & MEGASAS_DBG_LVL) {
1717 for (n = 0; n < sgcount; n++) {
1719 dev_err(&instance->pdev->dev, "sgl len : 0x%x, sgl addr : 0x%llx\n",
1720 le32_to_cpu(mfi_sgl->sge64[n].length),
1721 le64_to_cpu(mfi_sgl->sge64[n].phys_addr));
1723 dev_err(&instance->pdev->dev, "sgl len : 0x%x, sgl addr : 0x%x\n",
1724 le32_to_cpu(mfi_sgl->sge32[n].length),
1725 le32_to_cpu(mfi_sgl->sge32[n].phys_addr));
1729 dev_err(&instance->pdev->dev, "[%d]: Pending Internal cmds in FW : \n",instance->host->host_no);
1730 for (i = 0; i < max_cmd; i++) {
1732 cmd = instance->cmd_list[i];
1734 if (cmd->sync_cmd == 1)
1735 dev_err(&instance->pdev->dev, "0x%08lx : ", (unsigned long)cmd->frame_phys_addr);
1737 dev_err(&instance->pdev->dev, "[%d]: Dumping Done\n\n",instance->host->host_no);
1741 megasas_build_and_issue_cmd(struct megasas_instance *instance,
1742 struct scsi_cmnd *scmd)
1744 struct megasas_cmd *cmd;
1747 cmd = megasas_get_cmd(instance);
1749 return SCSI_MLQUEUE_HOST_BUSY;
1752 * Logical drive command
1754 if (megasas_cmd_type(scmd) == READ_WRITE_LDIO)
1755 frame_count = megasas_build_ldio(instance, scmd, cmd);
1757 frame_count = megasas_build_dcdb(instance, scmd, cmd);
1760 goto out_return_cmd;
1763 megasas_priv(scmd)->cmd_priv = cmd;
1766 * Issue the command to the FW
1768 atomic_inc(&instance->fw_outstanding);
1770 instance->instancet->fire_cmd(instance, cmd->frame_phys_addr,
1771 cmd->frame_count-1, instance->reg_set);
1775 megasas_return_cmd(instance, cmd);
1776 return SCSI_MLQUEUE_HOST_BUSY;
1781 * megasas_queue_command - Queue entry point
1782 * @shost: adapter SCSI host
1783 * @scmd: SCSI command to be queued
1786 megasas_queue_command(struct Scsi_Host *shost, struct scsi_cmnd *scmd)
1788 struct megasas_instance *instance;
1789 struct MR_PRIV_DEVICE *mr_device_priv_data;
1792 instance = (struct megasas_instance *)
1793 scmd->device->host->hostdata;
1795 if (instance->unload == 1) {
1796 scmd->result = DID_NO_CONNECT << 16;
1801 if (instance->issuepend_done == 0)
1802 return SCSI_MLQUEUE_HOST_BUSY;
1805 /* Check for an mpio path and adjust behavior */
1806 if (atomic_read(&instance->adprecovery) == MEGASAS_ADPRESET_SM_INFAULT) {
1807 if (megasas_check_mpio_paths(instance, scmd) ==
1808 (DID_REQUEUE << 16)) {
1809 return SCSI_MLQUEUE_HOST_BUSY;
1811 scmd->result = DID_NO_CONNECT << 16;
1817 mr_device_priv_data = scmd->device->hostdata;
1818 if (!mr_device_priv_data ||
1819 (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR)) {
1820 scmd->result = DID_NO_CONNECT << 16;
1825 if (MEGASAS_IS_LOGICAL(scmd->device)) {
1826 ld_tgt_id = MEGASAS_TARGET_ID(scmd->device);
1827 if (instance->ld_tgtid_status[ld_tgt_id] == LD_TARGET_ID_DELETED) {
1828 scmd->result = DID_NO_CONNECT << 16;
1834 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL)
1835 return SCSI_MLQUEUE_HOST_BUSY;
1837 if (mr_device_priv_data->tm_busy)
1838 return SCSI_MLQUEUE_DEVICE_BUSY;
1843 if (MEGASAS_IS_LOGICAL(scmd->device) &&
1844 (scmd->device->id >= instance->fw_supported_vd_count ||
1845 scmd->device->lun)) {
1846 scmd->result = DID_BAD_TARGET << 16;
1850 if ((scmd->cmnd[0] == SYNCHRONIZE_CACHE) &&
1851 MEGASAS_IS_LOGICAL(scmd->device) &&
1852 (!instance->fw_sync_cache_support)) {
1853 scmd->result = DID_OK << 16;
1857 return instance->instancet->build_and_issue_cmd(instance, scmd);
1864 static struct megasas_instance *megasas_lookup_instance(u16 host_no)
1868 for (i = 0; i < megasas_mgmt_info.max_index; i++) {
1870 if ((megasas_mgmt_info.instance[i]) &&
1871 (megasas_mgmt_info.instance[i]->host->host_no == host_no))
1872 return megasas_mgmt_info.instance[i];
1879 * megasas_set_dynamic_target_properties -
1880 * Device property set by driver may not be static and it is required to be
1884 * set dma alignment (only for eedp protection enable vd).
1886 * @sdev: OS provided scsi device
1890 void megasas_set_dynamic_target_properties(struct scsi_device *sdev,
1891 struct queue_limits *lim, bool is_target_prop)
1893 u16 pd_index = 0, ld;
1895 struct megasas_instance *instance;
1896 struct fusion_context *fusion;
1897 struct MR_PRIV_DEVICE *mr_device_priv_data;
1898 struct MR_PD_CFG_SEQ_NUM_SYNC *pd_sync;
1899 struct MR_LD_RAID *raid;
1900 struct MR_DRV_RAID_MAP_ALL *local_map_ptr;
1902 instance = megasas_lookup_instance(sdev->host->host_no);
1903 fusion = instance->ctrl_context;
1904 mr_device_priv_data = sdev->hostdata;
1906 if (!fusion || !mr_device_priv_data)
1909 if (MEGASAS_IS_LOGICAL(sdev)) {
1910 device_id = ((sdev->channel % 2) * MEGASAS_MAX_DEV_PER_CHANNEL)
1912 local_map_ptr = fusion->ld_drv_map[(instance->map_id & 1)];
1913 ld = MR_TargetIdToLdGet(device_id, local_map_ptr);
1914 if (ld >= instance->fw_supported_vd_count)
1916 raid = MR_LdRaidGet(ld, local_map_ptr);
1918 if (raid->capability.ldPiMode == MR_PROT_INFO_TYPE_CONTROLLER) {
1920 lim->dma_alignment = 0x7;
1923 mr_device_priv_data->is_tm_capable =
1924 raid->capability.tmCapable;
1926 if (!raid->flags.isEPD)
1927 sdev->no_write_same = 1;
1929 } else if (instance->use_seqnum_jbod_fp) {
1930 pd_index = (sdev->channel * MEGASAS_MAX_DEV_PER_CHANNEL) +
1932 pd_sync = (void *)fusion->pd_seq_sync
1933 [(instance->pd_seq_map_id - 1) & 1];
1934 mr_device_priv_data->is_tm_capable =
1935 pd_sync->seq[pd_index].capability.tmCapable;
1938 if (is_target_prop && instance->tgt_prop->reset_tmo) {
1940 * If FW provides a target reset timeout value, driver will use
1941 * it. If not set, fallback to default values.
1943 mr_device_priv_data->target_reset_tmo =
1944 min_t(u8, instance->max_reset_tmo,
1945 instance->tgt_prop->reset_tmo);
1946 mr_device_priv_data->task_abort_tmo = instance->task_abort_tmo;
1948 mr_device_priv_data->target_reset_tmo =
1949 MEGASAS_DEFAULT_TM_TIMEOUT;
1950 mr_device_priv_data->task_abort_tmo =
1951 MEGASAS_DEFAULT_TM_TIMEOUT;
1956 * megasas_set_nvme_device_properties -
1958 * set virtual page boundary = 4K (current mr_nvme_pg_size is 4K).
1959 * set maximum io transfer = MDTS of NVME device provided by MR firmware.
1961 * MR firmware provides value in KB. Caller of this function converts
1964 * e.a MDTS=5 means 2^5 * nvme page size. (In case of 4K page size,
1965 * MR firmware provides value 128 as (32 * 4K) = 128K.
1967 * @sdev: scsi device
1968 * @max_io_size: maximum io transfer size
1972 megasas_set_nvme_device_properties(struct scsi_device *sdev,
1973 struct queue_limits *lim, u32 max_io_size)
1975 struct megasas_instance *instance;
1976 u32 mr_nvme_pg_size;
1978 instance = (struct megasas_instance *)sdev->host->hostdata;
1979 mr_nvme_pg_size = max_t(u32, instance->nvme_page_size,
1980 MR_DEFAULT_NVME_PAGE_SIZE);
1982 lim->max_hw_sectors = max_io_size / 512;
1983 lim->virt_boundary_mask = mr_nvme_pg_size - 1;
1985 blk_queue_flag_set(QUEUE_FLAG_NOMERGES, sdev->request_queue);
1989 * megasas_set_fw_assisted_qd -
1990 * set device queue depth to can_queue
1991 * set device queue depth to fw assisted qd
1993 * @sdev: scsi device
1994 * @is_target_prop true, if fw provided target properties.
1996 static void megasas_set_fw_assisted_qd(struct scsi_device *sdev,
1997 bool is_target_prop)
2000 u32 device_qd = MEGASAS_DEFAULT_CMD_PER_LUN;
2002 struct megasas_instance *instance;
2003 struct MR_PRIV_DEVICE *mr_device_priv_data;
2005 instance = megasas_lookup_instance(sdev->host->host_no);
2006 mr_device_priv_data = sdev->hostdata;
2007 interface_type = mr_device_priv_data->interface_type;
2009 switch (interface_type) {
2011 device_qd = MEGASAS_SAS_QD;
2014 device_qd = MEGASAS_SATA_QD;
2017 device_qd = MEGASAS_NVME_QD;
2021 if (is_target_prop) {
2022 tgt_device_qd = le32_to_cpu(instance->tgt_prop->device_qdepth);
2024 device_qd = min(instance->host->can_queue,
2025 (int)tgt_device_qd);
2028 if (instance->enable_sdev_max_qd && interface_type != UNKNOWN_DRIVE)
2029 device_qd = instance->host->can_queue;
2031 scsi_change_queue_depth(sdev, device_qd);
2035 * megasas_set_static_target_properties -
2036 * Device property set by driver are static and it is not required to be
2037 * updated after OCR.
2040 * set device queue depth
2041 * set nvme device properties. see - megasas_set_nvme_device_properties
2043 * @sdev: scsi device
2044 * @is_target_prop true, if fw provided target properties.
2046 static void megasas_set_static_target_properties(struct scsi_device *sdev,
2047 struct queue_limits *lim, bool is_target_prop)
2049 u32 max_io_size_kb = MR_DEFAULT_NVME_MDTS_KB;
2050 struct megasas_instance *instance;
2052 instance = megasas_lookup_instance(sdev->host->host_no);
2055 * The RAID firmware may require extended timeouts.
2057 blk_queue_rq_timeout(sdev->request_queue, scmd_timeout * HZ);
2059 /* max_io_size_kb will be set to non zero for
2060 * nvme based vd and syspd.
2063 max_io_size_kb = le32_to_cpu(instance->tgt_prop->max_io_size_kb);
2065 if (instance->nvme_page_size && max_io_size_kb)
2066 megasas_set_nvme_device_properties(sdev, lim,
2067 max_io_size_kb << 10);
2069 megasas_set_fw_assisted_qd(sdev, is_target_prop);
2073 static int megasas_device_configure(struct scsi_device *sdev,
2074 struct queue_limits *lim)
2077 struct megasas_instance *instance;
2078 int ret_target_prop = DCMD_FAILED;
2079 bool is_target_prop = false;
2081 instance = megasas_lookup_instance(sdev->host->host_no);
2082 if (instance->pd_list_not_supported) {
2083 if (!MEGASAS_IS_LOGICAL(sdev) && sdev->type == TYPE_DISK) {
2084 pd_index = (sdev->channel * MEGASAS_MAX_DEV_PER_CHANNEL) +
2086 if (instance->pd_list[pd_index].driveState !=
2092 mutex_lock(&instance->reset_mutex);
2093 /* Send DCMD to Firmware and cache the information */
2094 if ((instance->pd_info) && !MEGASAS_IS_LOGICAL(sdev))
2095 megasas_get_pd_info(instance, sdev);
2097 /* Some ventura firmware may not have instance->nvme_page_size set.
2098 * Do not send MR_DCMD_DRV_GET_TARGET_PROP
2100 if ((instance->tgt_prop) && (instance->nvme_page_size))
2101 ret_target_prop = megasas_get_target_prop(instance, sdev);
2103 is_target_prop = (ret_target_prop == DCMD_SUCCESS) ? true : false;
2104 megasas_set_static_target_properties(sdev, lim, is_target_prop);
2106 /* This sdev property may change post OCR */
2107 megasas_set_dynamic_target_properties(sdev, lim, is_target_prop);
2109 mutex_unlock(&instance->reset_mutex);
2114 static int megasas_slave_alloc(struct scsi_device *sdev)
2116 u16 pd_index = 0, ld_tgt_id;
2117 struct megasas_instance *instance ;
2118 struct MR_PRIV_DEVICE *mr_device_priv_data;
2120 instance = megasas_lookup_instance(sdev->host->host_no);
2121 if (!MEGASAS_IS_LOGICAL(sdev)) {
2123 * Open the OS scan to the SYSTEM PD
2126 (sdev->channel * MEGASAS_MAX_DEV_PER_CHANNEL) +
2128 if ((instance->pd_list_not_supported ||
2129 instance->pd_list[pd_index].driveState ==
2130 MR_PD_STATE_SYSTEM)) {
2134 } else if (!MEGASAS_IS_LUN_VALID(sdev)) {
2135 sdev_printk(KERN_INFO, sdev, "%s: invalid LUN\n", __func__);
2140 mr_device_priv_data = kzalloc(sizeof(*mr_device_priv_data),
2142 if (!mr_device_priv_data)
2145 if (MEGASAS_IS_LOGICAL(sdev)) {
2146 ld_tgt_id = MEGASAS_TARGET_ID(sdev);
2147 instance->ld_tgtid_status[ld_tgt_id] = LD_TARGET_ID_ACTIVE;
2148 if (megasas_dbg_lvl & LD_PD_DEBUG)
2149 sdev_printk(KERN_INFO, sdev, "LD target ID %d created.\n", ld_tgt_id);
2152 sdev->hostdata = mr_device_priv_data;
2154 atomic_set(&mr_device_priv_data->r1_ldio_hint,
2155 instance->r1_ldio_hint_default);
2159 static void megasas_slave_destroy(struct scsi_device *sdev)
2162 struct megasas_instance *instance;
2164 instance = megasas_lookup_instance(sdev->host->host_no);
2166 if (MEGASAS_IS_LOGICAL(sdev)) {
2167 if (!MEGASAS_IS_LUN_VALID(sdev)) {
2168 sdev_printk(KERN_INFO, sdev, "%s: invalid LUN\n", __func__);
2171 ld_tgt_id = MEGASAS_TARGET_ID(sdev);
2172 instance->ld_tgtid_status[ld_tgt_id] = LD_TARGET_ID_DELETED;
2173 if (megasas_dbg_lvl & LD_PD_DEBUG)
2174 sdev_printk(KERN_INFO, sdev,
2175 "LD target ID %d removed from OS stack\n", ld_tgt_id);
2178 kfree(sdev->hostdata);
2179 sdev->hostdata = NULL;
2183 * megasas_complete_outstanding_ioctls - Complete outstanding ioctls after a
2185 * @instance: Adapter soft state
2188 static void megasas_complete_outstanding_ioctls(struct megasas_instance *instance)
2191 struct megasas_cmd *cmd_mfi;
2192 struct megasas_cmd_fusion *cmd_fusion;
2193 struct fusion_context *fusion = instance->ctrl_context;
2195 /* Find all outstanding ioctls */
2197 for (i = 0; i < instance->max_fw_cmds; i++) {
2198 cmd_fusion = fusion->cmd_list[i];
2199 if (cmd_fusion->sync_cmd_idx != (u32)ULONG_MAX) {
2200 cmd_mfi = instance->cmd_list[cmd_fusion->sync_cmd_idx];
2201 if (cmd_mfi->sync_cmd &&
2202 (cmd_mfi->frame->hdr.cmd != MFI_CMD_ABORT)) {
2203 cmd_mfi->frame->hdr.cmd_status =
2204 MFI_STAT_WRONG_STATE;
2205 megasas_complete_cmd(instance,
2211 for (i = 0; i < instance->max_fw_cmds; i++) {
2212 cmd_mfi = instance->cmd_list[i];
2213 if (cmd_mfi->sync_cmd && cmd_mfi->frame->hdr.cmd !=
2215 megasas_complete_cmd(instance, cmd_mfi, DID_OK);
2221 void megaraid_sas_kill_hba(struct megasas_instance *instance)
2223 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) {
2224 dev_warn(&instance->pdev->dev,
2225 "Adapter already dead, skipping kill HBA\n");
2229 /* Set critical error to block I/O & ioctls in case caller didn't */
2230 atomic_set(&instance->adprecovery, MEGASAS_HW_CRITICAL_ERROR);
2231 /* Wait 1 second to ensure IO or ioctls in build have posted */
2233 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0073SKINNY) ||
2234 (instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0071SKINNY) ||
2235 (instance->adapter_type != MFI_SERIES)) {
2236 if (!instance->requestorId) {
2237 writel(MFI_STOP_ADP, &instance->reg_set->doorbell);
2239 readl(&instance->reg_set->doorbell);
2241 if (instance->requestorId && instance->peerIsPresent)
2242 memset(instance->ld_ids, 0xff, MEGASAS_MAX_LD_IDS);
2244 writel(MFI_STOP_ADP,
2245 &instance->reg_set->inbound_doorbell);
2247 /* Complete outstanding ioctls when adapter is killed */
2248 megasas_complete_outstanding_ioctls(instance);
2252 * megasas_check_and_restore_queue_depth - Check if queue depth needs to be
2253 * restored to max value
2254 * @instance: Adapter soft state
2258 megasas_check_and_restore_queue_depth(struct megasas_instance *instance)
2260 unsigned long flags;
2262 if (instance->flag & MEGASAS_FW_BUSY
2263 && time_after(jiffies, instance->last_time + 5 * HZ)
2264 && atomic_read(&instance->fw_outstanding) <
2265 instance->throttlequeuedepth + 1) {
2267 spin_lock_irqsave(instance->host->host_lock, flags);
2268 instance->flag &= ~MEGASAS_FW_BUSY;
2270 instance->host->can_queue = instance->cur_can_queue;
2271 spin_unlock_irqrestore(instance->host->host_lock, flags);
2276 * megasas_complete_cmd_dpc - Returns FW's controller structure
2277 * @instance_addr: Address of adapter soft state
2279 * Tasklet to complete cmds
2281 static void megasas_complete_cmd_dpc(unsigned long instance_addr)
2286 struct megasas_cmd *cmd;
2287 struct megasas_instance *instance =
2288 (struct megasas_instance *)instance_addr;
2289 unsigned long flags;
2291 /* If we have already declared adapter dead, donot complete cmds */
2292 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR)
2295 spin_lock_irqsave(&instance->completion_lock, flags);
2297 producer = le32_to_cpu(*instance->producer);
2298 consumer = le32_to_cpu(*instance->consumer);
2300 while (consumer != producer) {
2301 context = le32_to_cpu(instance->reply_queue[consumer]);
2302 if (context >= instance->max_fw_cmds) {
2303 dev_err(&instance->pdev->dev, "Unexpected context value %x\n",
2308 cmd = instance->cmd_list[context];
2310 megasas_complete_cmd(instance, cmd, DID_OK);
2313 if (consumer == (instance->max_fw_cmds + 1)) {
2318 *instance->consumer = cpu_to_le32(producer);
2320 spin_unlock_irqrestore(&instance->completion_lock, flags);
2323 * Check if we can restore can_queue
2325 megasas_check_and_restore_queue_depth(instance);
2328 static void megasas_sriov_heartbeat_handler(struct timer_list *t);
2331 * megasas_start_timer - Initializes sriov heartbeat timer object
2332 * @instance: Adapter soft state
2335 void megasas_start_timer(struct megasas_instance *instance)
2337 struct timer_list *timer = &instance->sriov_heartbeat_timer;
2339 timer_setup(timer, megasas_sriov_heartbeat_handler, 0);
2340 timer->expires = jiffies + MEGASAS_SRIOV_HEARTBEAT_INTERVAL_VF;
2345 megasas_internal_reset_defer_cmds(struct megasas_instance *instance);
2348 process_fw_state_change_wq(struct work_struct *work);
2350 static void megasas_do_ocr(struct megasas_instance *instance)
2352 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS1064R) ||
2353 (instance->pdev->device == PCI_DEVICE_ID_DELL_PERC5) ||
2354 (instance->pdev->device == PCI_DEVICE_ID_LSI_VERDE_ZCR)) {
2355 *instance->consumer = cpu_to_le32(MEGASAS_ADPRESET_INPROG_SIGN);
2357 instance->instancet->disable_intr(instance);
2358 atomic_set(&instance->adprecovery, MEGASAS_ADPRESET_SM_INFAULT);
2359 instance->issuepend_done = 0;
2361 atomic_set(&instance->fw_outstanding, 0);
2362 megasas_internal_reset_defer_cmds(instance);
2363 process_fw_state_change_wq(&instance->work_init);
2366 static int megasas_get_ld_vf_affiliation_111(struct megasas_instance *instance,
2369 struct megasas_cmd *cmd;
2370 struct megasas_dcmd_frame *dcmd;
2371 struct MR_LD_VF_AFFILIATION_111 *new_affiliation_111 = NULL;
2372 dma_addr_t new_affiliation_111_h;
2376 cmd = megasas_get_cmd(instance);
2379 dev_printk(KERN_DEBUG, &instance->pdev->dev, "megasas_get_ld_vf_affiliation_111:"
2380 "Failed to get cmd for scsi%d\n",
2381 instance->host->host_no);
2385 dcmd = &cmd->frame->dcmd;
2387 if (!instance->vf_affiliation_111) {
2388 dev_warn(&instance->pdev->dev, "SR-IOV: Couldn't get LD/VF "
2389 "affiliation for scsi%d\n", instance->host->host_no);
2390 megasas_return_cmd(instance, cmd);
2395 memset(instance->vf_affiliation_111, 0,
2396 sizeof(struct MR_LD_VF_AFFILIATION_111));
2398 new_affiliation_111 =
2399 dma_alloc_coherent(&instance->pdev->dev,
2400 sizeof(struct MR_LD_VF_AFFILIATION_111),
2401 &new_affiliation_111_h, GFP_KERNEL);
2402 if (!new_affiliation_111) {
2403 dev_printk(KERN_DEBUG, &instance->pdev->dev, "SR-IOV: Couldn't allocate "
2404 "memory for new affiliation for scsi%d\n",
2405 instance->host->host_no);
2406 megasas_return_cmd(instance, cmd);
2411 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
2413 dcmd->cmd = MFI_CMD_DCMD;
2414 dcmd->cmd_status = MFI_STAT_INVALID_STATUS;
2415 dcmd->sge_count = 1;
2416 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_BOTH);
2419 dcmd->data_xfer_len =
2420 cpu_to_le32(sizeof(struct MR_LD_VF_AFFILIATION_111));
2421 dcmd->opcode = cpu_to_le32(MR_DCMD_LD_VF_MAP_GET_ALL_LDS_111);
2424 dcmd->sgl.sge32[0].phys_addr =
2425 cpu_to_le32(instance->vf_affiliation_111_h);
2427 dcmd->sgl.sge32[0].phys_addr =
2428 cpu_to_le32(new_affiliation_111_h);
2430 dcmd->sgl.sge32[0].length = cpu_to_le32(
2431 sizeof(struct MR_LD_VF_AFFILIATION_111));
2433 dev_warn(&instance->pdev->dev, "SR-IOV: Getting LD/VF affiliation for "
2434 "scsi%d\n", instance->host->host_no);
2436 if (megasas_issue_blocked_cmd(instance, cmd, 0) != DCMD_SUCCESS) {
2437 dev_warn(&instance->pdev->dev, "SR-IOV: LD/VF affiliation DCMD"
2438 " failed with status 0x%x for scsi%d\n",
2439 dcmd->cmd_status, instance->host->host_no);
2440 retval = 1; /* Do a scan if we couldn't get affiliation */
2445 thisVf = new_affiliation_111->thisVf;
2446 for (ld = 0 ; ld < new_affiliation_111->vdCount; ld++)
2447 if (instance->vf_affiliation_111->map[ld].policy[thisVf] !=
2448 new_affiliation_111->map[ld].policy[thisVf]) {
2449 dev_warn(&instance->pdev->dev, "SR-IOV: "
2450 "Got new LD/VF affiliation for scsi%d\n",
2451 instance->host->host_no);
2452 memcpy(instance->vf_affiliation_111,
2453 new_affiliation_111,
2454 sizeof(struct MR_LD_VF_AFFILIATION_111));
2460 if (new_affiliation_111) {
2461 dma_free_coherent(&instance->pdev->dev,
2462 sizeof(struct MR_LD_VF_AFFILIATION_111),
2463 new_affiliation_111,
2464 new_affiliation_111_h);
2467 megasas_return_cmd(instance, cmd);
2472 static int megasas_get_ld_vf_affiliation_12(struct megasas_instance *instance,
2475 struct megasas_cmd *cmd;
2476 struct megasas_dcmd_frame *dcmd;
2477 struct MR_LD_VF_AFFILIATION *new_affiliation = NULL;
2478 struct MR_LD_VF_MAP *newmap = NULL, *savedmap = NULL;
2479 dma_addr_t new_affiliation_h;
2480 int i, j, retval = 0, found = 0, doscan = 0;
2483 cmd = megasas_get_cmd(instance);
2486 dev_printk(KERN_DEBUG, &instance->pdev->dev, "megasas_get_ld_vf_affiliation12: "
2487 "Failed to get cmd for scsi%d\n",
2488 instance->host->host_no);
2492 dcmd = &cmd->frame->dcmd;
2494 if (!instance->vf_affiliation) {
2495 dev_warn(&instance->pdev->dev, "SR-IOV: Couldn't get LD/VF "
2496 "affiliation for scsi%d\n", instance->host->host_no);
2497 megasas_return_cmd(instance, cmd);
2502 memset(instance->vf_affiliation, 0, (MAX_LOGICAL_DRIVES + 1) *
2503 sizeof(struct MR_LD_VF_AFFILIATION));
2506 dma_alloc_coherent(&instance->pdev->dev,
2507 (MAX_LOGICAL_DRIVES + 1) * sizeof(struct MR_LD_VF_AFFILIATION),
2508 &new_affiliation_h, GFP_KERNEL);
2509 if (!new_affiliation) {
2510 dev_printk(KERN_DEBUG, &instance->pdev->dev, "SR-IOV: Couldn't allocate "
2511 "memory for new affiliation for scsi%d\n",
2512 instance->host->host_no);
2513 megasas_return_cmd(instance, cmd);
2518 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
2520 dcmd->cmd = MFI_CMD_DCMD;
2521 dcmd->cmd_status = MFI_STAT_INVALID_STATUS;
2522 dcmd->sge_count = 1;
2523 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_BOTH);
2526 dcmd->data_xfer_len = cpu_to_le32((MAX_LOGICAL_DRIVES + 1) *
2527 sizeof(struct MR_LD_VF_AFFILIATION));
2528 dcmd->opcode = cpu_to_le32(MR_DCMD_LD_VF_MAP_GET_ALL_LDS);
2531 dcmd->sgl.sge32[0].phys_addr =
2532 cpu_to_le32(instance->vf_affiliation_h);
2534 dcmd->sgl.sge32[0].phys_addr =
2535 cpu_to_le32(new_affiliation_h);
2537 dcmd->sgl.sge32[0].length = cpu_to_le32((MAX_LOGICAL_DRIVES + 1) *
2538 sizeof(struct MR_LD_VF_AFFILIATION));
2540 dev_warn(&instance->pdev->dev, "SR-IOV: Getting LD/VF affiliation for "
2541 "scsi%d\n", instance->host->host_no);
2544 if (megasas_issue_blocked_cmd(instance, cmd, 0) != DCMD_SUCCESS) {
2545 dev_warn(&instance->pdev->dev, "SR-IOV: LD/VF affiliation DCMD"
2546 " failed with status 0x%x for scsi%d\n",
2547 dcmd->cmd_status, instance->host->host_no);
2548 retval = 1; /* Do a scan if we couldn't get affiliation */
2553 if (!new_affiliation->ldCount) {
2554 dev_warn(&instance->pdev->dev, "SR-IOV: Got new LD/VF "
2555 "affiliation for passive path for scsi%d\n",
2556 instance->host->host_no);
2560 newmap = new_affiliation->map;
2561 savedmap = instance->vf_affiliation->map;
2562 thisVf = new_affiliation->thisVf;
2563 for (i = 0 ; i < new_affiliation->ldCount; i++) {
2565 for (j = 0; j < instance->vf_affiliation->ldCount;
2567 if (newmap->ref.targetId ==
2568 savedmap->ref.targetId) {
2570 if (newmap->policy[thisVf] !=
2571 savedmap->policy[thisVf]) {
2576 savedmap = (struct MR_LD_VF_MAP *)
2577 ((unsigned char *)savedmap +
2580 if (!found && newmap->policy[thisVf] !=
2581 MR_LD_ACCESS_HIDDEN) {
2585 newmap = (struct MR_LD_VF_MAP *)
2586 ((unsigned char *)newmap + newmap->size);
2589 newmap = new_affiliation->map;
2590 savedmap = instance->vf_affiliation->map;
2592 for (i = 0 ; i < instance->vf_affiliation->ldCount; i++) {
2594 for (j = 0 ; j < new_affiliation->ldCount; j++) {
2595 if (savedmap->ref.targetId ==
2596 newmap->ref.targetId) {
2598 if (savedmap->policy[thisVf] !=
2599 newmap->policy[thisVf]) {
2604 newmap = (struct MR_LD_VF_MAP *)
2605 ((unsigned char *)newmap +
2608 if (!found && savedmap->policy[thisVf] !=
2609 MR_LD_ACCESS_HIDDEN) {
2613 savedmap = (struct MR_LD_VF_MAP *)
2614 ((unsigned char *)savedmap +
2620 dev_warn(&instance->pdev->dev, "SR-IOV: Got new LD/VF "
2621 "affiliation for scsi%d\n", instance->host->host_no);
2622 memcpy(instance->vf_affiliation, new_affiliation,
2623 new_affiliation->size);
2627 if (new_affiliation)
2628 dma_free_coherent(&instance->pdev->dev,
2629 (MAX_LOGICAL_DRIVES + 1) *
2630 sizeof(struct MR_LD_VF_AFFILIATION),
2631 new_affiliation, new_affiliation_h);
2632 megasas_return_cmd(instance, cmd);
2637 /* This function will get the current SR-IOV LD/VF affiliation */
2638 static int megasas_get_ld_vf_affiliation(struct megasas_instance *instance,
2643 if (instance->PlasmaFW111)
2644 retval = megasas_get_ld_vf_affiliation_111(instance, initial);
2646 retval = megasas_get_ld_vf_affiliation_12(instance, initial);
2650 /* This function will tell FW to start the SR-IOV heartbeat */
2651 int megasas_sriov_start_heartbeat(struct megasas_instance *instance,
2654 struct megasas_cmd *cmd;
2655 struct megasas_dcmd_frame *dcmd;
2658 cmd = megasas_get_cmd(instance);
2661 dev_printk(KERN_DEBUG, &instance->pdev->dev, "megasas_sriov_start_heartbeat: "
2662 "Failed to get cmd for scsi%d\n",
2663 instance->host->host_no);
2667 dcmd = &cmd->frame->dcmd;
2670 instance->hb_host_mem =
2671 dma_alloc_coherent(&instance->pdev->dev,
2672 sizeof(struct MR_CTRL_HB_HOST_MEM),
2673 &instance->hb_host_mem_h,
2675 if (!instance->hb_host_mem) {
2676 dev_printk(KERN_DEBUG, &instance->pdev->dev, "SR-IOV: Couldn't allocate"
2677 " memory for heartbeat host memory for scsi%d\n",
2678 instance->host->host_no);
2684 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
2686 dcmd->mbox.s[0] = cpu_to_le16(sizeof(struct MR_CTRL_HB_HOST_MEM));
2687 dcmd->cmd = MFI_CMD_DCMD;
2688 dcmd->cmd_status = MFI_STAT_INVALID_STATUS;
2689 dcmd->sge_count = 1;
2690 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_BOTH);
2693 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct MR_CTRL_HB_HOST_MEM));
2694 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_SHARED_HOST_MEM_ALLOC);
2696 megasas_set_dma_settings(instance, dcmd, instance->hb_host_mem_h,
2697 sizeof(struct MR_CTRL_HB_HOST_MEM));
2699 dev_warn(&instance->pdev->dev, "SR-IOV: Starting heartbeat for scsi%d\n",
2700 instance->host->host_no);
2702 if ((instance->adapter_type != MFI_SERIES) &&
2703 !instance->mask_interrupts)
2704 retval = megasas_issue_blocked_cmd(instance, cmd,
2705 MEGASAS_ROUTINE_WAIT_TIME_VF);
2707 retval = megasas_issue_polled(instance, cmd);
2710 dev_warn(&instance->pdev->dev, "SR-IOV: MR_DCMD_CTRL_SHARED_HOST"
2711 "_MEM_ALLOC DCMD %s for scsi%d\n",
2712 (dcmd->cmd_status == MFI_STAT_INVALID_STATUS) ?
2713 "timed out" : "failed", instance->host->host_no);
2718 megasas_return_cmd(instance, cmd);
2723 /* Handler for SR-IOV heartbeat */
2724 static void megasas_sriov_heartbeat_handler(struct timer_list *t)
2726 struct megasas_instance *instance =
2727 from_timer(instance, t, sriov_heartbeat_timer);
2729 if (instance->hb_host_mem->HB.fwCounter !=
2730 instance->hb_host_mem->HB.driverCounter) {
2731 instance->hb_host_mem->HB.driverCounter =
2732 instance->hb_host_mem->HB.fwCounter;
2733 mod_timer(&instance->sriov_heartbeat_timer,
2734 jiffies + MEGASAS_SRIOV_HEARTBEAT_INTERVAL_VF);
2736 dev_warn(&instance->pdev->dev, "SR-IOV: Heartbeat never "
2737 "completed for scsi%d\n", instance->host->host_no);
2738 schedule_work(&instance->work_init);
2743 * megasas_wait_for_outstanding - Wait for all outstanding cmds
2744 * @instance: Adapter soft state
2746 * This function waits for up to MEGASAS_RESET_WAIT_TIME seconds for FW to
2747 * complete all its outstanding commands. Returns error if one or more IOs
2748 * are pending after this time period. It also marks the controller dead.
2750 static int megasas_wait_for_outstanding(struct megasas_instance *instance)
2752 int i, sl, outstanding;
2754 u32 wait_time = MEGASAS_RESET_WAIT_TIME;
2755 unsigned long flags;
2756 struct list_head clist_local;
2757 struct megasas_cmd *reset_cmd;
2760 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) {
2761 dev_info(&instance->pdev->dev, "%s:%d HBA is killed.\n",
2762 __func__, __LINE__);
2766 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) {
2768 INIT_LIST_HEAD(&clist_local);
2769 spin_lock_irqsave(&instance->hba_lock, flags);
2770 list_splice_init(&instance->internal_reset_pending_q,
2772 spin_unlock_irqrestore(&instance->hba_lock, flags);
2774 dev_notice(&instance->pdev->dev, "HBA reset wait ...\n");
2775 for (i = 0; i < wait_time; i++) {
2777 if (atomic_read(&instance->adprecovery) == MEGASAS_HBA_OPERATIONAL)
2781 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) {
2782 dev_notice(&instance->pdev->dev, "reset: Stopping HBA.\n");
2783 atomic_set(&instance->adprecovery, MEGASAS_HW_CRITICAL_ERROR);
2788 while (!list_empty(&clist_local)) {
2789 reset_cmd = list_entry((&clist_local)->next,
2790 struct megasas_cmd, list);
2791 list_del_init(&reset_cmd->list);
2792 if (reset_cmd->scmd) {
2793 reset_cmd->scmd->result = DID_REQUEUE << 16;
2794 dev_notice(&instance->pdev->dev, "%d:%p reset [%02x]\n",
2795 reset_index, reset_cmd,
2796 reset_cmd->scmd->cmnd[0]);
2798 scsi_done(reset_cmd->scmd);
2799 megasas_return_cmd(instance, reset_cmd);
2800 } else if (reset_cmd->sync_cmd) {
2801 dev_notice(&instance->pdev->dev, "%p synch cmds"
2805 reset_cmd->cmd_status_drv = DCMD_INIT;
2806 instance->instancet->fire_cmd(instance,
2807 reset_cmd->frame_phys_addr,
2808 0, instance->reg_set);
2810 dev_notice(&instance->pdev->dev, "%p unexpected"
2820 for (i = 0; i < resetwaittime; i++) {
2821 outstanding = atomic_read(&instance->fw_outstanding);
2826 if (!(i % MEGASAS_RESET_NOTICE_INTERVAL)) {
2827 dev_notice(&instance->pdev->dev, "[%2d]waiting for %d "
2828 "commands to complete\n",i,outstanding);
2830 * Call cmd completion routine. Cmd to be
2831 * be completed directly without depending on isr.
2833 megasas_complete_cmd_dpc((unsigned long)instance);
2840 outstanding = atomic_read(&instance->fw_outstanding);
2841 fw_state = instance->instancet->read_fw_status_reg(instance) & MFI_STATE_MASK;
2843 if ((!outstanding && (fw_state == MFI_STATE_OPERATIONAL)))
2844 goto no_outstanding;
2846 if (instance->disableOnlineCtrlReset)
2847 goto kill_hba_and_failed;
2849 if ((fw_state == MFI_STATE_FAULT) || atomic_read(&instance->fw_outstanding)) {
2850 dev_info(&instance->pdev->dev,
2851 "%s:%d waiting_for_outstanding: before issue OCR. FW state = 0x%x, outstanding 0x%x\n",
2852 __func__, __LINE__, fw_state, atomic_read(&instance->fw_outstanding));
2854 goto kill_hba_and_failed;
2855 megasas_do_ocr(instance);
2857 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) {
2858 dev_info(&instance->pdev->dev, "%s:%d OCR failed and HBA is killed.\n",
2859 __func__, __LINE__);
2862 dev_info(&instance->pdev->dev, "%s:%d waiting_for_outstanding: after issue OCR.\n",
2863 __func__, __LINE__);
2865 for (sl = 0; sl < 10; sl++)
2868 outstanding = atomic_read(&instance->fw_outstanding);
2870 fw_state = instance->instancet->read_fw_status_reg(instance) & MFI_STATE_MASK;
2871 if ((!outstanding && (fw_state == MFI_STATE_OPERATIONAL)))
2872 goto no_outstanding;
2879 dev_info(&instance->pdev->dev, "%s:%d no more pending commands remain after reset handling.\n",
2880 __func__, __LINE__);
2883 kill_hba_and_failed:
2885 /* Reset not supported, kill adapter */
2886 dev_info(&instance->pdev->dev, "%s:%d killing adapter scsi%d"
2887 " disableOnlineCtrlReset %d fw_outstanding %d \n",
2888 __func__, __LINE__, instance->host->host_no, instance->disableOnlineCtrlReset,
2889 atomic_read(&instance->fw_outstanding));
2890 megasas_dump_pending_frames(instance);
2891 megaraid_sas_kill_hba(instance);
2897 * megasas_generic_reset - Generic reset routine
2898 * @scmd: Mid-layer SCSI command
2900 * This routine implements a generic reset handler for device, bus and host
2901 * reset requests. Device, bus and host specific reset handlers can use this
2902 * function after they do their specific tasks.
2904 static int megasas_generic_reset(struct scsi_cmnd *scmd)
2907 struct megasas_instance *instance;
2909 instance = (struct megasas_instance *)scmd->device->host->hostdata;
2911 scmd_printk(KERN_NOTICE, scmd, "megasas: RESET cmd=%x retries=%x\n",
2912 scmd->cmnd[0], scmd->retries);
2914 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) {
2915 dev_err(&instance->pdev->dev, "cannot recover from previous reset failures\n");
2919 ret_val = megasas_wait_for_outstanding(instance);
2920 if (ret_val == SUCCESS)
2921 dev_notice(&instance->pdev->dev, "reset successful\n");
2923 dev_err(&instance->pdev->dev, "failed to do reset\n");
2929 * megasas_reset_timer - quiesce the adapter if required
2932 * Sets the FW busy flag and reduces the host->can_queue if the
2933 * cmd has not been completed within the timeout period.
2935 static enum scsi_timeout_action megasas_reset_timer(struct scsi_cmnd *scmd)
2937 struct megasas_instance *instance;
2938 unsigned long flags;
2940 if (time_after(jiffies, scmd->jiffies_at_alloc +
2941 (scmd_timeout * 2) * HZ)) {
2942 return SCSI_EH_NOT_HANDLED;
2945 instance = (struct megasas_instance *)scmd->device->host->hostdata;
2946 if (!(instance->flag & MEGASAS_FW_BUSY)) {
2947 /* FW is busy, throttle IO */
2948 spin_lock_irqsave(instance->host->host_lock, flags);
2950 instance->host->can_queue = instance->throttlequeuedepth;
2951 instance->last_time = jiffies;
2952 instance->flag |= MEGASAS_FW_BUSY;
2954 spin_unlock_irqrestore(instance->host->host_lock, flags);
2956 return SCSI_EH_RESET_TIMER;
2960 * megasas_dump - This function will print hexdump of provided buffer.
2961 * @buf: Buffer to be dumped
2962 * @sz: Size in bytes
2963 * @format: Different formats of dumping e.g. format=n will
2964 * cause only 'n' 32 bit words to be dumped in a single
2968 megasas_dump(void *buf, int sz, int format)
2971 __le32 *buf_loc = (__le32 *)buf;
2973 for (i = 0; i < (sz / sizeof(__le32)); i++) {
2974 if ((i % format) == 0) {
2976 printk(KERN_CONT "\n");
2977 printk(KERN_CONT "%08x: ", (i * 4));
2979 printk(KERN_CONT "%08x ", le32_to_cpu(buf_loc[i]));
2981 printk(KERN_CONT "\n");
2985 * megasas_dump_reg_set - This function will print hexdump of register set
2986 * @reg_set: Register set to be dumped
2989 megasas_dump_reg_set(void __iomem *reg_set)
2991 unsigned int i, sz = 256;
2992 u32 __iomem *reg = (u32 __iomem *)reg_set;
2994 for (i = 0; i < (sz / sizeof(u32)); i++)
2995 printk("%08x: %08x\n", (i * 4), readl(®[i]));
2999 * megasas_dump_fusion_io - This function will print key details
3001 * @scmd: SCSI command pointer of SCSI IO
3004 megasas_dump_fusion_io(struct scsi_cmnd *scmd)
3006 struct megasas_cmd_fusion *cmd = megasas_priv(scmd)->cmd_priv;
3007 union MEGASAS_REQUEST_DESCRIPTOR_UNION *req_desc;
3008 struct megasas_instance *instance;
3010 instance = (struct megasas_instance *)scmd->device->host->hostdata;
3012 scmd_printk(KERN_INFO, scmd,
3013 "scmd: (0x%p) retries: 0x%x allowed: 0x%x\n",
3014 scmd, scmd->retries, scmd->allowed);
3015 scsi_print_command(scmd);
3018 req_desc = (union MEGASAS_REQUEST_DESCRIPTOR_UNION *)cmd->request_desc;
3019 scmd_printk(KERN_INFO, scmd, "Request descriptor details:\n");
3020 scmd_printk(KERN_INFO, scmd,
3021 "RequestFlags:0x%x MSIxIndex:0x%x SMID:0x%x LMID:0x%x DevHandle:0x%x\n",
3022 req_desc->SCSIIO.RequestFlags,
3023 req_desc->SCSIIO.MSIxIndex, req_desc->SCSIIO.SMID,
3024 req_desc->SCSIIO.LMID, req_desc->SCSIIO.DevHandle);
3026 printk(KERN_INFO "IO request frame:\n");
3027 megasas_dump(cmd->io_request,
3028 MEGA_MPI2_RAID_DEFAULT_IO_FRAME_SIZE, 8);
3029 printk(KERN_INFO "Chain frame:\n");
3030 megasas_dump(cmd->sg_frame,
3031 instance->max_chain_frame_sz, 8);
3037 * megasas_dump_sys_regs - This function will dump system registers through
3039 * @reg_set: Pointer to System register set.
3040 * @buf: Buffer to which output is to be written.
3041 * @return: Number of bytes written to buffer.
3043 static inline ssize_t
3044 megasas_dump_sys_regs(void __iomem *reg_set, char *buf)
3046 unsigned int i, sz = 256;
3047 int bytes_wrote = 0;
3048 char *loc = (char *)buf;
3049 u32 __iomem *reg = (u32 __iomem *)reg_set;
3051 for (i = 0; i < sz / sizeof(u32); i++) {
3052 bytes_wrote += scnprintf(loc + bytes_wrote,
3053 PAGE_SIZE - bytes_wrote,
3054 "%08x: %08x\n", (i * 4),
3061 * megasas_reset_bus_host - Bus & host reset handler entry point
3062 * @scmd: Mid-layer SCSI command
3064 static int megasas_reset_bus_host(struct scsi_cmnd *scmd)
3067 struct megasas_instance *instance;
3069 instance = (struct megasas_instance *)scmd->device->host->hostdata;
3071 scmd_printk(KERN_INFO, scmd,
3072 "OCR is requested due to IO timeout!!\n");
3074 scmd_printk(KERN_INFO, scmd,
3075 "SCSI host state: %d SCSI host busy: %d FW outstanding: %d\n",
3076 scmd->device->host->shost_state,
3077 scsi_host_busy(scmd->device->host),
3078 atomic_read(&instance->fw_outstanding));
3080 * First wait for all commands to complete
3082 if (instance->adapter_type == MFI_SERIES) {
3083 ret = megasas_generic_reset(scmd);
3085 megasas_dump_fusion_io(scmd);
3086 ret = megasas_reset_fusion(scmd->device->host,
3087 SCSIIO_TIMEOUT_OCR);
3094 * megasas_task_abort - Issues task abort request to firmware
3095 * (supported only for fusion adapters)
3096 * @scmd: SCSI command pointer
3098 static int megasas_task_abort(struct scsi_cmnd *scmd)
3101 struct megasas_instance *instance;
3103 instance = (struct megasas_instance *)scmd->device->host->hostdata;
3105 if (instance->adapter_type != MFI_SERIES)
3106 ret = megasas_task_abort_fusion(scmd);
3108 sdev_printk(KERN_NOTICE, scmd->device, "TASK ABORT not supported\n");
3116 * megasas_reset_target: Issues target reset request to firmware
3117 * (supported only for fusion adapters)
3118 * @scmd: SCSI command pointer
3120 static int megasas_reset_target(struct scsi_cmnd *scmd)
3123 struct megasas_instance *instance;
3125 instance = (struct megasas_instance *)scmd->device->host->hostdata;
3127 if (instance->adapter_type != MFI_SERIES)
3128 ret = megasas_reset_target_fusion(scmd);
3130 sdev_printk(KERN_NOTICE, scmd->device, "TARGET RESET not supported\n");
3138 * megasas_bios_param - Returns disk geometry for a disk
3139 * @sdev: device handle
3140 * @bdev: block device
3141 * @capacity: drive capacity
3142 * @geom: geometry parameters
3145 megasas_bios_param(struct scsi_device *sdev, struct block_device *bdev,
3146 sector_t capacity, int geom[])
3153 /* Default heads (64) & sectors (32) */
3157 tmp = heads * sectors;
3158 cylinders = capacity;
3160 sector_div(cylinders, tmp);
3163 * Handle extended translation size for logical drives > 1Gb
3166 if (capacity >= 0x200000) {
3169 tmp = heads*sectors;
3170 cylinders = capacity;
3171 sector_div(cylinders, tmp);
3176 geom[2] = cylinders;
3181 static void megasas_map_queues(struct Scsi_Host *shost)
3183 struct megasas_instance *instance;
3184 int qoff = 0, offset;
3185 struct blk_mq_queue_map *map;
3187 instance = (struct megasas_instance *)shost->hostdata;
3189 if (shost->nr_hw_queues == 1)
3192 offset = instance->low_latency_index_start;
3194 /* Setup Default hctx */
3195 map = &shost->tag_set.map[HCTX_TYPE_DEFAULT];
3196 map->nr_queues = instance->msix_vectors - offset;
3197 map->queue_offset = 0;
3198 blk_mq_pci_map_queues(map, instance->pdev, offset);
3199 qoff += map->nr_queues;
3200 offset += map->nr_queues;
3202 /* we never use READ queue, so can't cheat blk-mq */
3203 shost->tag_set.map[HCTX_TYPE_READ].nr_queues = 0;
3205 /* Setup Poll hctx */
3206 map = &shost->tag_set.map[HCTX_TYPE_POLL];
3207 map->nr_queues = instance->iopoll_q_count;
3208 if (map->nr_queues) {
3210 * The poll queue(s) doesn't have an IRQ (and hence IRQ
3211 * affinity), so use the regular blk-mq cpu mapping
3213 map->queue_offset = qoff;
3214 blk_mq_map_queues(map);
3218 static void megasas_aen_polling(struct work_struct *work);
3221 * megasas_service_aen - Processes an event notification
3222 * @instance: Adapter soft state
3223 * @cmd: AEN command completed by the ISR
3225 * For AEN, driver sends a command down to FW that is held by the FW till an
3226 * event occurs. When an event of interest occurs, FW completes the command
3227 * that it was previously holding.
3229 * This routines sends SIGIO signal to processes that have registered with the
3233 megasas_service_aen(struct megasas_instance *instance, struct megasas_cmd *cmd)
3235 unsigned long flags;
3238 * Don't signal app if it is just an aborted previously registered aen
3240 if ((!cmd->abort_aen) && (instance->unload == 0)) {
3241 spin_lock_irqsave(&poll_aen_lock, flags);
3242 megasas_poll_wait_aen = 1;
3243 spin_unlock_irqrestore(&poll_aen_lock, flags);
3244 wake_up(&megasas_poll_wait);
3245 kill_fasync(&megasas_async_queue, SIGIO, POLL_IN);
3250 instance->aen_cmd = NULL;
3252 megasas_return_cmd(instance, cmd);
3254 if ((instance->unload == 0) &&
3255 ((instance->issuepend_done == 1))) {
3256 struct megasas_aen_event *ev;
3258 ev = kzalloc(sizeof(*ev), GFP_ATOMIC);
3260 dev_err(&instance->pdev->dev, "megasas_service_aen: out of memory\n");
3262 ev->instance = instance;
3264 INIT_DELAYED_WORK(&ev->hotplug_work,
3265 megasas_aen_polling);
3266 schedule_delayed_work(&ev->hotplug_work, 0);
3272 fw_crash_buffer_store(struct device *cdev,
3273 struct device_attribute *attr, const char *buf, size_t count)
3275 struct Scsi_Host *shost = class_to_shost(cdev);
3276 struct megasas_instance *instance =
3277 (struct megasas_instance *) shost->hostdata;
3280 if (kstrtoint(buf, 0, &val) != 0)
3283 mutex_lock(&instance->crashdump_lock);
3284 instance->fw_crash_buffer_offset = val;
3285 mutex_unlock(&instance->crashdump_lock);
3290 fw_crash_buffer_show(struct device *cdev,
3291 struct device_attribute *attr, char *buf)
3293 struct Scsi_Host *shost = class_to_shost(cdev);
3294 struct megasas_instance *instance =
3295 (struct megasas_instance *) shost->hostdata;
3297 unsigned long dmachunk = CRASH_DMA_BUF_SIZE;
3298 unsigned long chunk_left_bytes;
3299 unsigned long src_addr;
3302 mutex_lock(&instance->crashdump_lock);
3303 buff_offset = instance->fw_crash_buffer_offset;
3304 if (!instance->crash_dump_buf ||
3305 !((instance->fw_crash_state == AVAILABLE) ||
3306 (instance->fw_crash_state == COPYING))) {
3307 dev_err(&instance->pdev->dev,
3308 "Firmware crash dump is not available\n");
3309 mutex_unlock(&instance->crashdump_lock);
3313 if (buff_offset > (instance->fw_crash_buffer_size * dmachunk)) {
3314 dev_err(&instance->pdev->dev,
3315 "Firmware crash dump offset is out of range\n");
3316 mutex_unlock(&instance->crashdump_lock);
3320 size = (instance->fw_crash_buffer_size * dmachunk) - buff_offset;
3321 chunk_left_bytes = dmachunk - (buff_offset % dmachunk);
3322 size = (size > chunk_left_bytes) ? chunk_left_bytes : size;
3323 size = (size >= PAGE_SIZE) ? (PAGE_SIZE - 1) : size;
3325 src_addr = (unsigned long)instance->crash_buf[buff_offset / dmachunk] +
3326 (buff_offset % dmachunk);
3327 memcpy(buf, (void *)src_addr, size);
3328 mutex_unlock(&instance->crashdump_lock);
3334 fw_crash_buffer_size_show(struct device *cdev,
3335 struct device_attribute *attr, char *buf)
3337 struct Scsi_Host *shost = class_to_shost(cdev);
3338 struct megasas_instance *instance =
3339 (struct megasas_instance *) shost->hostdata;
3341 return snprintf(buf, PAGE_SIZE, "%ld\n", (unsigned long)
3342 ((instance->fw_crash_buffer_size) * 1024 * 1024)/PAGE_SIZE);
3346 fw_crash_state_store(struct device *cdev,
3347 struct device_attribute *attr, const char *buf, size_t count)
3349 struct Scsi_Host *shost = class_to_shost(cdev);
3350 struct megasas_instance *instance =
3351 (struct megasas_instance *) shost->hostdata;
3354 if (kstrtoint(buf, 0, &val) != 0)
3357 if ((val <= AVAILABLE || val > COPY_ERROR)) {
3358 dev_err(&instance->pdev->dev, "application updates invalid "
3359 "firmware crash state\n");
3363 instance->fw_crash_state = val;
3365 if ((val == COPIED) || (val == COPY_ERROR)) {
3366 mutex_lock(&instance->crashdump_lock);
3367 megasas_free_host_crash_buffer(instance);
3368 mutex_unlock(&instance->crashdump_lock);
3369 if (val == COPY_ERROR)
3370 dev_info(&instance->pdev->dev, "application failed to "
3371 "copy Firmware crash dump\n");
3373 dev_info(&instance->pdev->dev, "Firmware crash dump "
3374 "copied successfully\n");
3380 fw_crash_state_show(struct device *cdev,
3381 struct device_attribute *attr, char *buf)
3383 struct Scsi_Host *shost = class_to_shost(cdev);
3384 struct megasas_instance *instance =
3385 (struct megasas_instance *) shost->hostdata;
3387 return snprintf(buf, PAGE_SIZE, "%d\n", instance->fw_crash_state);
3391 page_size_show(struct device *cdev,
3392 struct device_attribute *attr, char *buf)
3394 return snprintf(buf, PAGE_SIZE, "%ld\n", (unsigned long)PAGE_SIZE - 1);
3398 ldio_outstanding_show(struct device *cdev, struct device_attribute *attr,
3401 struct Scsi_Host *shost = class_to_shost(cdev);
3402 struct megasas_instance *instance = (struct megasas_instance *)shost->hostdata;
3404 return snprintf(buf, PAGE_SIZE, "%d\n", atomic_read(&instance->ldio_outstanding));
3408 fw_cmds_outstanding_show(struct device *cdev,
3409 struct device_attribute *attr, char *buf)
3411 struct Scsi_Host *shost = class_to_shost(cdev);
3412 struct megasas_instance *instance = (struct megasas_instance *)shost->hostdata;
3414 return snprintf(buf, PAGE_SIZE, "%d\n", atomic_read(&instance->fw_outstanding));
3418 enable_sdev_max_qd_show(struct device *cdev,
3419 struct device_attribute *attr, char *buf)
3421 struct Scsi_Host *shost = class_to_shost(cdev);
3422 struct megasas_instance *instance = (struct megasas_instance *)shost->hostdata;
3424 return snprintf(buf, PAGE_SIZE, "%d\n", instance->enable_sdev_max_qd);
3428 enable_sdev_max_qd_store(struct device *cdev,
3429 struct device_attribute *attr, const char *buf, size_t count)
3431 struct Scsi_Host *shost = class_to_shost(cdev);
3432 struct megasas_instance *instance = (struct megasas_instance *)shost->hostdata;
3434 bool is_target_prop;
3435 int ret_target_prop = DCMD_FAILED;
3436 struct scsi_device *sdev;
3438 if (kstrtou32(buf, 0, &val) != 0) {
3439 pr_err("megasas: could not set enable_sdev_max_qd\n");
3443 mutex_lock(&instance->reset_mutex);
3445 instance->enable_sdev_max_qd = true;
3447 instance->enable_sdev_max_qd = false;
3449 shost_for_each_device(sdev, shost) {
3450 ret_target_prop = megasas_get_target_prop(instance, sdev);
3451 is_target_prop = (ret_target_prop == DCMD_SUCCESS) ? true : false;
3452 megasas_set_fw_assisted_qd(sdev, is_target_prop);
3454 mutex_unlock(&instance->reset_mutex);
3460 dump_system_regs_show(struct device *cdev,
3461 struct device_attribute *attr, char *buf)
3463 struct Scsi_Host *shost = class_to_shost(cdev);
3464 struct megasas_instance *instance =
3465 (struct megasas_instance *)shost->hostdata;
3467 return megasas_dump_sys_regs(instance->reg_set, buf);
3471 raid_map_id_show(struct device *cdev, struct device_attribute *attr,
3474 struct Scsi_Host *shost = class_to_shost(cdev);
3475 struct megasas_instance *instance =
3476 (struct megasas_instance *)shost->hostdata;
3478 return snprintf(buf, PAGE_SIZE, "%ld\n",
3479 (unsigned long)instance->map_id);
3482 static DEVICE_ATTR_RW(fw_crash_buffer);
3483 static DEVICE_ATTR_RO(fw_crash_buffer_size);
3484 static DEVICE_ATTR_RW(fw_crash_state);
3485 static DEVICE_ATTR_RO(page_size);
3486 static DEVICE_ATTR_RO(ldio_outstanding);
3487 static DEVICE_ATTR_RO(fw_cmds_outstanding);
3488 static DEVICE_ATTR_RW(enable_sdev_max_qd);
3489 static DEVICE_ATTR_RO(dump_system_regs);
3490 static DEVICE_ATTR_RO(raid_map_id);
3492 static struct attribute *megaraid_host_attrs[] = {
3493 &dev_attr_fw_crash_buffer_size.attr,
3494 &dev_attr_fw_crash_buffer.attr,
3495 &dev_attr_fw_crash_state.attr,
3496 &dev_attr_page_size.attr,
3497 &dev_attr_ldio_outstanding.attr,
3498 &dev_attr_fw_cmds_outstanding.attr,
3499 &dev_attr_enable_sdev_max_qd.attr,
3500 &dev_attr_dump_system_regs.attr,
3501 &dev_attr_raid_map_id.attr,
3505 ATTRIBUTE_GROUPS(megaraid_host);
3508 * Scsi host template for megaraid_sas driver
3510 static const struct scsi_host_template megasas_template = {
3512 .module = THIS_MODULE,
3513 .name = "Avago SAS based MegaRAID driver",
3514 .proc_name = "megaraid_sas",
3515 .device_configure = megasas_device_configure,
3516 .slave_alloc = megasas_slave_alloc,
3517 .slave_destroy = megasas_slave_destroy,
3518 .queuecommand = megasas_queue_command,
3519 .eh_target_reset_handler = megasas_reset_target,
3520 .eh_abort_handler = megasas_task_abort,
3521 .eh_host_reset_handler = megasas_reset_bus_host,
3522 .eh_timed_out = megasas_reset_timer,
3523 .shost_groups = megaraid_host_groups,
3524 .bios_param = megasas_bios_param,
3525 .map_queues = megasas_map_queues,
3526 .mq_poll = megasas_blk_mq_poll,
3527 .change_queue_depth = scsi_change_queue_depth,
3528 .max_segment_size = 0xffffffff,
3529 .cmd_size = sizeof(struct megasas_cmd_priv),
3533 * megasas_complete_int_cmd - Completes an internal command
3534 * @instance: Adapter soft state
3535 * @cmd: Command to be completed
3537 * The megasas_issue_blocked_cmd() function waits for a command to complete
3538 * after it issues a command. This function wakes up that waiting routine by
3539 * calling wake_up() on the wait queue.
3542 megasas_complete_int_cmd(struct megasas_instance *instance,
3543 struct megasas_cmd *cmd)
3545 if (cmd->cmd_status_drv == DCMD_INIT)
3546 cmd->cmd_status_drv =
3547 (cmd->frame->io.cmd_status == MFI_STAT_OK) ?
3548 DCMD_SUCCESS : DCMD_FAILED;
3550 wake_up(&instance->int_cmd_wait_q);
3554 * megasas_complete_abort - Completes aborting a command
3555 * @instance: Adapter soft state
3556 * @cmd: Cmd that was issued to abort another cmd
3558 * The megasas_issue_blocked_abort_cmd() function waits on abort_cmd_wait_q
3559 * after it issues an abort on a previously issued command. This function
3560 * wakes up all functions waiting on the same wait queue.
3563 megasas_complete_abort(struct megasas_instance *instance,
3564 struct megasas_cmd *cmd)
3566 if (cmd->sync_cmd) {
3568 cmd->cmd_status_drv = DCMD_SUCCESS;
3569 wake_up(&instance->abort_cmd_wait_q);
3574 megasas_set_ld_removed_by_fw(struct megasas_instance *instance)
3578 for (i = 0; (i < MEGASAS_MAX_LD_IDS); i++) {
3579 if (instance->ld_ids_prev[i] != 0xff &&
3580 instance->ld_ids_from_raidmap[i] == 0xff) {
3581 if (megasas_dbg_lvl & LD_PD_DEBUG)
3582 dev_info(&instance->pdev->dev,
3583 "LD target ID %d removed from RAID map\n", i);
3584 instance->ld_tgtid_status[i] = LD_TARGET_ID_DELETED;
3590 * megasas_complete_cmd - Completes a command
3591 * @instance: Adapter soft state
3592 * @cmd: Command to be completed
3593 * @alt_status: If non-zero, use this value as status to
3594 * SCSI mid-layer instead of the value returned
3595 * by the FW. This should be used if caller wants
3596 * an alternate status (as in the case of aborted
3600 megasas_complete_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd,
3604 struct megasas_header *hdr = &cmd->frame->hdr;
3605 unsigned long flags;
3606 struct fusion_context *fusion = instance->ctrl_context;
3609 /* flag for the retry reset */
3610 cmd->retry_for_fw_reset = 0;
3613 megasas_priv(cmd->scmd)->cmd_priv = NULL;
3616 case MFI_CMD_INVALID:
3617 /* Some older 1068 controller FW may keep a pended
3618 MR_DCMD_CTRL_EVENT_GET_INFO left over from the main kernel
3619 when booting the kdump kernel. Ignore this command to
3620 prevent a kernel panic on shutdown of the kdump kernel. */
3621 dev_warn(&instance->pdev->dev, "MFI_CMD_INVALID command "
3623 dev_warn(&instance->pdev->dev, "If you have a controller "
3624 "other than PERC5, please upgrade your firmware\n");
3626 case MFI_CMD_PD_SCSI_IO:
3627 case MFI_CMD_LD_SCSI_IO:
3630 * MFI_CMD_PD_SCSI_IO and MFI_CMD_LD_SCSI_IO could have been
3631 * issued either through an IO path or an IOCTL path. If it
3632 * was via IOCTL, we will send it to internal completion.
3634 if (cmd->sync_cmd) {
3636 megasas_complete_int_cmd(instance, cmd);
3641 case MFI_CMD_LD_READ:
3642 case MFI_CMD_LD_WRITE:
3645 cmd->scmd->result = alt_status << 16;
3651 atomic_dec(&instance->fw_outstanding);
3653 scsi_dma_unmap(cmd->scmd);
3654 scsi_done(cmd->scmd);
3655 megasas_return_cmd(instance, cmd);
3660 switch (hdr->cmd_status) {
3663 cmd->scmd->result = DID_OK << 16;
3666 case MFI_STAT_SCSI_IO_FAILED:
3667 case MFI_STAT_LD_INIT_IN_PROGRESS:
3669 (DID_ERROR << 16) | hdr->scsi_status;
3672 case MFI_STAT_SCSI_DONE_WITH_ERROR:
3674 cmd->scmd->result = (DID_OK << 16) | hdr->scsi_status;
3676 if (hdr->scsi_status == SAM_STAT_CHECK_CONDITION) {
3677 memset(cmd->scmd->sense_buffer, 0,
3678 SCSI_SENSE_BUFFERSIZE);
3679 memcpy(cmd->scmd->sense_buffer, cmd->sense,
3685 case MFI_STAT_LD_OFFLINE:
3686 case MFI_STAT_DEVICE_NOT_FOUND:
3687 cmd->scmd->result = DID_BAD_TARGET << 16;
3691 dev_printk(KERN_DEBUG, &instance->pdev->dev, "MFI FW status %#x\n",
3693 cmd->scmd->result = DID_ERROR << 16;
3697 atomic_dec(&instance->fw_outstanding);
3699 scsi_dma_unmap(cmd->scmd);
3700 scsi_done(cmd->scmd);
3701 megasas_return_cmd(instance, cmd);
3708 case MFI_CMD_TOOLBOX:
3709 megasas_complete_int_cmd(instance, cmd);
3713 opcode = le32_to_cpu(cmd->frame->dcmd.opcode);
3714 /* Check for LD map update */
3715 if ((opcode == MR_DCMD_LD_MAP_GET_INFO)
3716 && (cmd->frame->dcmd.mbox.b[1] == 1)) {
3717 fusion->fast_path_io = 0;
3718 spin_lock_irqsave(instance->host->host_lock, flags);
3719 status = cmd->frame->hdr.cmd_status;
3720 instance->map_update_cmd = NULL;
3721 if (status != MFI_STAT_OK) {
3722 if (status != MFI_STAT_NOT_FOUND)
3723 dev_warn(&instance->pdev->dev, "map syncfailed, status = 0x%x\n",
3724 cmd->frame->hdr.cmd_status);
3726 megasas_return_cmd(instance, cmd);
3727 spin_unlock_irqrestore(
3728 instance->host->host_lock,
3734 megasas_return_cmd(instance, cmd);
3737 * Set fast path IO to ZERO.
3738 * Validate Map will set proper value.
3739 * Meanwhile all IOs will go as LD IO.
3741 if (status == MFI_STAT_OK &&
3742 (MR_ValidateMapInfo(instance, (instance->map_id + 1)))) {
3744 fusion->fast_path_io = 1;
3746 fusion->fast_path_io = 0;
3749 if (instance->adapter_type >= INVADER_SERIES)
3750 megasas_set_ld_removed_by_fw(instance);
3752 megasas_sync_map_info(instance);
3753 spin_unlock_irqrestore(instance->host->host_lock,
3758 if (opcode == MR_DCMD_CTRL_EVENT_GET_INFO ||
3759 opcode == MR_DCMD_CTRL_EVENT_GET) {
3760 spin_lock_irqsave(&poll_aen_lock, flags);
3761 megasas_poll_wait_aen = 0;
3762 spin_unlock_irqrestore(&poll_aen_lock, flags);
3765 /* FW has an updated PD sequence */
3766 if ((opcode == MR_DCMD_SYSTEM_PD_MAP_GET_INFO) &&
3767 (cmd->frame->dcmd.mbox.b[0] == 1)) {
3769 spin_lock_irqsave(instance->host->host_lock, flags);
3770 status = cmd->frame->hdr.cmd_status;
3771 instance->jbod_seq_cmd = NULL;
3772 megasas_return_cmd(instance, cmd);
3774 if (status == MFI_STAT_OK) {
3775 instance->pd_seq_map_id++;
3776 /* Re-register a pd sync seq num cmd */
3777 if (megasas_sync_pd_seq_num(instance, true))
3778 instance->use_seqnum_jbod_fp = false;
3780 instance->use_seqnum_jbod_fp = false;
3782 spin_unlock_irqrestore(instance->host->host_lock, flags);
3787 * See if got an event notification
3789 if (opcode == MR_DCMD_CTRL_EVENT_WAIT)
3790 megasas_service_aen(instance, cmd);
3792 megasas_complete_int_cmd(instance, cmd);
3798 * Cmd issued to abort another cmd returned
3800 megasas_complete_abort(instance, cmd);
3804 dev_info(&instance->pdev->dev, "Unknown command completed! [0x%X]\n",
3806 megasas_complete_int_cmd(instance, cmd);
3812 * megasas_issue_pending_cmds_again - issue all pending cmds
3813 * in FW again because of the fw reset
3814 * @instance: Adapter soft state
3817 megasas_issue_pending_cmds_again(struct megasas_instance *instance)
3819 struct megasas_cmd *cmd;
3820 struct list_head clist_local;
3821 union megasas_evt_class_locale class_locale;
3822 unsigned long flags;
3825 INIT_LIST_HEAD(&clist_local);
3826 spin_lock_irqsave(&instance->hba_lock, flags);
3827 list_splice_init(&instance->internal_reset_pending_q, &clist_local);
3828 spin_unlock_irqrestore(&instance->hba_lock, flags);
3830 while (!list_empty(&clist_local)) {
3831 cmd = list_entry((&clist_local)->next,
3832 struct megasas_cmd, list);
3833 list_del_init(&cmd->list);
3835 if (cmd->sync_cmd || cmd->scmd) {
3836 dev_notice(&instance->pdev->dev, "command %p, %p:%d"
3837 "detected to be pending while HBA reset\n",
3838 cmd, cmd->scmd, cmd->sync_cmd);
3840 cmd->retry_for_fw_reset++;
3842 if (cmd->retry_for_fw_reset == 3) {
3843 dev_notice(&instance->pdev->dev, "cmd %p, %p:%d"
3844 "was tried multiple times during reset."
3845 "Shutting down the HBA\n",
3846 cmd, cmd->scmd, cmd->sync_cmd);
3847 instance->instancet->disable_intr(instance);
3848 atomic_set(&instance->fw_reset_no_pci_access, 1);
3849 megaraid_sas_kill_hba(instance);
3854 if (cmd->sync_cmd == 1) {
3856 dev_notice(&instance->pdev->dev, "unexpected"
3857 "cmd attached to internal command!\n");
3859 dev_notice(&instance->pdev->dev, "%p synchronous cmd"
3860 "on the internal reset queue,"
3861 "issue it again.\n", cmd);
3862 cmd->cmd_status_drv = DCMD_INIT;
3863 instance->instancet->fire_cmd(instance,
3864 cmd->frame_phys_addr,
3865 0, instance->reg_set);
3866 } else if (cmd->scmd) {
3867 dev_notice(&instance->pdev->dev, "%p scsi cmd [%02x]"
3868 "detected on the internal queue, issue again.\n",
3869 cmd, cmd->scmd->cmnd[0]);
3871 atomic_inc(&instance->fw_outstanding);
3872 instance->instancet->fire_cmd(instance,
3873 cmd->frame_phys_addr,
3874 cmd->frame_count-1, instance->reg_set);
3876 dev_notice(&instance->pdev->dev, "%p unexpected cmd on the"
3877 "internal reset defer list while re-issue!!\n",
3882 if (instance->aen_cmd) {
3883 dev_notice(&instance->pdev->dev, "aen_cmd in def process\n");
3884 megasas_return_cmd(instance, instance->aen_cmd);
3886 instance->aen_cmd = NULL;
3890 * Initiate AEN (Asynchronous Event Notification)
3892 seq_num = instance->last_seq_num;
3893 class_locale.members.reserved = 0;
3894 class_locale.members.locale = MR_EVT_LOCALE_ALL;
3895 class_locale.members.class = MR_EVT_CLASS_DEBUG;
3897 megasas_register_aen(instance, seq_num, class_locale.word);
3901 * Move the internal reset pending commands to a deferred queue.
3903 * We move the commands pending at internal reset time to a
3904 * pending queue. This queue would be flushed after successful
3905 * completion of the internal reset sequence. if the internal reset
3906 * did not complete in time, the kernel reset handler would flush
3910 megasas_internal_reset_defer_cmds(struct megasas_instance *instance)
3912 struct megasas_cmd *cmd;
3914 u16 max_cmd = instance->max_fw_cmds;
3916 unsigned long flags;
3919 spin_lock_irqsave(&instance->mfi_pool_lock, flags);
3920 for (i = 0; i < max_cmd; i++) {
3921 cmd = instance->cmd_list[i];
3922 if (cmd->sync_cmd == 1 || cmd->scmd) {
3923 dev_notice(&instance->pdev->dev, "moving cmd[%d]:%p:%d:%p"
3924 "on the defer queue as internal\n",
3925 defer_index, cmd, cmd->sync_cmd, cmd->scmd);
3927 if (!list_empty(&cmd->list)) {
3928 dev_notice(&instance->pdev->dev, "ERROR while"
3929 " moving this cmd:%p, %d %p, it was"
3930 "discovered on some list?\n",
3931 cmd, cmd->sync_cmd, cmd->scmd);
3933 list_del_init(&cmd->list);
3936 list_add_tail(&cmd->list,
3937 &instance->internal_reset_pending_q);
3940 spin_unlock_irqrestore(&instance->mfi_pool_lock, flags);
3945 process_fw_state_change_wq(struct work_struct *work)
3947 struct megasas_instance *instance =
3948 container_of(work, struct megasas_instance, work_init);
3950 unsigned long flags;
3952 if (atomic_read(&instance->adprecovery) != MEGASAS_ADPRESET_SM_INFAULT) {
3953 dev_notice(&instance->pdev->dev, "error, recovery st %x\n",
3954 atomic_read(&instance->adprecovery));
3958 if (atomic_read(&instance->adprecovery) == MEGASAS_ADPRESET_SM_INFAULT) {
3959 dev_notice(&instance->pdev->dev, "FW detected to be in fault"
3960 "state, restarting it...\n");
3962 instance->instancet->disable_intr(instance);
3963 atomic_set(&instance->fw_outstanding, 0);
3965 atomic_set(&instance->fw_reset_no_pci_access, 1);
3966 instance->instancet->adp_reset(instance, instance->reg_set);
3967 atomic_set(&instance->fw_reset_no_pci_access, 0);
3969 dev_notice(&instance->pdev->dev, "FW restarted successfully,"
3970 "initiating next stage...\n");
3972 dev_notice(&instance->pdev->dev, "HBA recovery state machine,"
3973 "state 2 starting...\n");
3975 /* waiting for about 20 second before start the second init */
3976 for (wait = 0; wait < 30; wait++) {
3980 if (megasas_transition_to_ready(instance, 1)) {
3981 dev_notice(&instance->pdev->dev, "adapter not ready\n");
3983 atomic_set(&instance->fw_reset_no_pci_access, 1);
3984 megaraid_sas_kill_hba(instance);
3988 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS1064R) ||
3989 (instance->pdev->device == PCI_DEVICE_ID_DELL_PERC5) ||
3990 (instance->pdev->device == PCI_DEVICE_ID_LSI_VERDE_ZCR)
3992 *instance->consumer = *instance->producer;
3994 *instance->consumer = 0;
3995 *instance->producer = 0;
3998 megasas_issue_init_mfi(instance);
4000 spin_lock_irqsave(&instance->hba_lock, flags);
4001 atomic_set(&instance->adprecovery, MEGASAS_HBA_OPERATIONAL);
4002 spin_unlock_irqrestore(&instance->hba_lock, flags);
4003 instance->instancet->enable_intr(instance);
4005 megasas_issue_pending_cmds_again(instance);
4006 instance->issuepend_done = 1;
4011 * megasas_deplete_reply_queue - Processes all completed commands
4012 * @instance: Adapter soft state
4013 * @alt_status: Alternate status to be returned to
4014 * SCSI mid-layer instead of the status
4015 * returned by the FW
4016 * Note: this must be called with hba lock held
4019 megasas_deplete_reply_queue(struct megasas_instance *instance,
4025 if (instance->instancet->check_reset(instance, instance->reg_set) == 1)
4028 mfiStatus = instance->instancet->clear_intr(instance);
4029 if (mfiStatus == 0) {
4030 /* Hardware may not set outbound_intr_status in MSI-X mode */
4031 if (!instance->msix_vectors)
4035 instance->mfiStatus = mfiStatus;
4037 if ((mfiStatus & MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE)) {
4038 fw_state = instance->instancet->read_fw_status_reg(
4039 instance) & MFI_STATE_MASK;
4041 if (fw_state != MFI_STATE_FAULT) {
4042 dev_notice(&instance->pdev->dev, "fw state:%x\n",
4046 if ((fw_state == MFI_STATE_FAULT) &&
4047 (instance->disableOnlineCtrlReset == 0)) {
4048 dev_notice(&instance->pdev->dev, "wait adp restart\n");
4050 if ((instance->pdev->device ==
4051 PCI_DEVICE_ID_LSI_SAS1064R) ||
4052 (instance->pdev->device ==
4053 PCI_DEVICE_ID_DELL_PERC5) ||
4054 (instance->pdev->device ==
4055 PCI_DEVICE_ID_LSI_VERDE_ZCR)) {
4057 *instance->consumer =
4058 cpu_to_le32(MEGASAS_ADPRESET_INPROG_SIGN);
4062 instance->instancet->disable_intr(instance);
4063 atomic_set(&instance->adprecovery, MEGASAS_ADPRESET_SM_INFAULT);
4064 instance->issuepend_done = 0;
4066 atomic_set(&instance->fw_outstanding, 0);
4067 megasas_internal_reset_defer_cmds(instance);
4069 dev_notice(&instance->pdev->dev, "fwState=%x, stage:%d\n",
4070 fw_state, atomic_read(&instance->adprecovery));
4072 schedule_work(&instance->work_init);
4076 dev_notice(&instance->pdev->dev, "fwstate:%x, dis_OCR=%x\n",
4077 fw_state, instance->disableOnlineCtrlReset);
4081 tasklet_schedule(&instance->isr_tasklet);
4086 * megasas_isr - isr entry point
4088 * @devp: IRQ context address
4090 static irqreturn_t megasas_isr(int irq, void *devp)
4092 struct megasas_irq_context *irq_context = devp;
4093 struct megasas_instance *instance = irq_context->instance;
4094 unsigned long flags;
4097 if (atomic_read(&instance->fw_reset_no_pci_access))
4100 spin_lock_irqsave(&instance->hba_lock, flags);
4101 rc = megasas_deplete_reply_queue(instance, DID_OK);
4102 spin_unlock_irqrestore(&instance->hba_lock, flags);
4108 * megasas_transition_to_ready - Move the FW to READY state
4109 * @instance: Adapter soft state
4110 * @ocr: Adapter reset state
4112 * During the initialization, FW passes can potentially be in any one of
4113 * several possible states. If the FW in operational, waiting-for-handshake
4114 * states, driver must take steps to bring it to ready state. Otherwise, it
4115 * has to wait for the ready state.
4118 megasas_transition_to_ready(struct megasas_instance *instance, int ocr)
4123 u32 abs_state, curr_abs_state;
4125 abs_state = instance->instancet->read_fw_status_reg(instance);
4126 fw_state = abs_state & MFI_STATE_MASK;
4128 if (fw_state != MFI_STATE_READY)
4129 dev_info(&instance->pdev->dev, "Waiting for FW to come to ready"
4132 while (fw_state != MFI_STATE_READY) {
4136 case MFI_STATE_FAULT:
4137 dev_printk(KERN_ERR, &instance->pdev->dev,
4138 "FW in FAULT state, Fault code:0x%x subcode:0x%x func:%s\n",
4139 abs_state & MFI_STATE_FAULT_CODE,
4140 abs_state & MFI_STATE_FAULT_SUBCODE, __func__);
4142 max_wait = MEGASAS_RESET_WAIT_TIME;
4145 dev_printk(KERN_DEBUG, &instance->pdev->dev, "System Register set:\n");
4146 megasas_dump_reg_set(instance->reg_set);
4150 case MFI_STATE_WAIT_HANDSHAKE:
4152 * Set the CLR bit in inbound doorbell
4154 if ((instance->pdev->device ==
4155 PCI_DEVICE_ID_LSI_SAS0073SKINNY) ||
4156 (instance->pdev->device ==
4157 PCI_DEVICE_ID_LSI_SAS0071SKINNY) ||
4158 (instance->adapter_type != MFI_SERIES))
4160 MFI_INIT_CLEAR_HANDSHAKE|MFI_INIT_HOTPLUG,
4161 &instance->reg_set->doorbell);
4164 MFI_INIT_CLEAR_HANDSHAKE|MFI_INIT_HOTPLUG,
4165 &instance->reg_set->inbound_doorbell);
4167 max_wait = MEGASAS_RESET_WAIT_TIME;
4170 case MFI_STATE_BOOT_MESSAGE_PENDING:
4171 if ((instance->pdev->device ==
4172 PCI_DEVICE_ID_LSI_SAS0073SKINNY) ||
4173 (instance->pdev->device ==
4174 PCI_DEVICE_ID_LSI_SAS0071SKINNY) ||
4175 (instance->adapter_type != MFI_SERIES))
4176 writel(MFI_INIT_HOTPLUG,
4177 &instance->reg_set->doorbell);
4179 writel(MFI_INIT_HOTPLUG,
4180 &instance->reg_set->inbound_doorbell);
4182 max_wait = MEGASAS_RESET_WAIT_TIME;
4185 case MFI_STATE_OPERATIONAL:
4187 * Bring it to READY state; assuming max wait 10 secs
4189 instance->instancet->disable_intr(instance);
4190 if ((instance->pdev->device ==
4191 PCI_DEVICE_ID_LSI_SAS0073SKINNY) ||
4192 (instance->pdev->device ==
4193 PCI_DEVICE_ID_LSI_SAS0071SKINNY) ||
4194 (instance->adapter_type != MFI_SERIES)) {
4195 writel(MFI_RESET_FLAGS,
4196 &instance->reg_set->doorbell);
4198 if (instance->adapter_type != MFI_SERIES) {
4199 for (i = 0; i < (10 * 1000); i += 20) {
4211 writel(MFI_RESET_FLAGS,
4212 &instance->reg_set->inbound_doorbell);
4214 max_wait = MEGASAS_RESET_WAIT_TIME;
4217 case MFI_STATE_UNDEFINED:
4219 * This state should not last for more than 2 seconds
4221 max_wait = MEGASAS_RESET_WAIT_TIME;
4224 case MFI_STATE_BB_INIT:
4225 max_wait = MEGASAS_RESET_WAIT_TIME;
4228 case MFI_STATE_FW_INIT:
4229 max_wait = MEGASAS_RESET_WAIT_TIME;
4232 case MFI_STATE_FW_INIT_2:
4233 max_wait = MEGASAS_RESET_WAIT_TIME;
4236 case MFI_STATE_DEVICE_SCAN:
4237 max_wait = MEGASAS_RESET_WAIT_TIME;
4240 case MFI_STATE_FLUSH_CACHE:
4241 max_wait = MEGASAS_RESET_WAIT_TIME;
4245 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Unknown state 0x%x\n",
4247 dev_printk(KERN_DEBUG, &instance->pdev->dev, "System Register set:\n");
4248 megasas_dump_reg_set(instance->reg_set);
4253 * The cur_state should not last for more than max_wait secs
4255 for (i = 0; i < max_wait * 50; i++) {
4256 curr_abs_state = instance->instancet->
4257 read_fw_status_reg(instance);
4259 if (abs_state == curr_abs_state) {
4266 * Return error if fw_state hasn't changed after max_wait
4268 if (curr_abs_state == abs_state) {
4269 dev_printk(KERN_DEBUG, &instance->pdev->dev, "FW state [%d] hasn't changed "
4270 "in %d secs\n", fw_state, max_wait);
4271 dev_printk(KERN_DEBUG, &instance->pdev->dev, "System Register set:\n");
4272 megasas_dump_reg_set(instance->reg_set);
4276 abs_state = curr_abs_state;
4277 fw_state = curr_abs_state & MFI_STATE_MASK;
4279 dev_info(&instance->pdev->dev, "FW now in Ready state\n");
4285 * megasas_teardown_frame_pool - Destroy the cmd frame DMA pool
4286 * @instance: Adapter soft state
4288 static void megasas_teardown_frame_pool(struct megasas_instance *instance)
4291 u16 max_cmd = instance->max_mfi_cmds;
4292 struct megasas_cmd *cmd;
4294 if (!instance->frame_dma_pool)
4298 * Return all frames to pool
4300 for (i = 0; i < max_cmd; i++) {
4302 cmd = instance->cmd_list[i];
4305 dma_pool_free(instance->frame_dma_pool, cmd->frame,
4306 cmd->frame_phys_addr);
4309 dma_pool_free(instance->sense_dma_pool, cmd->sense,
4310 cmd->sense_phys_addr);
4314 * Now destroy the pool itself
4316 dma_pool_destroy(instance->frame_dma_pool);
4317 dma_pool_destroy(instance->sense_dma_pool);
4319 instance->frame_dma_pool = NULL;
4320 instance->sense_dma_pool = NULL;
4324 * megasas_create_frame_pool - Creates DMA pool for cmd frames
4325 * @instance: Adapter soft state
4327 * Each command packet has an embedded DMA memory buffer that is used for
4328 * filling MFI frame and the SG list that immediately follows the frame. This
4329 * function creates those DMA memory buffers for each command packet by using
4330 * PCI pool facility.
4332 static int megasas_create_frame_pool(struct megasas_instance *instance)
4337 struct megasas_cmd *cmd;
4339 max_cmd = instance->max_mfi_cmds;
4342 * For MFI controllers.
4344 * max_sge_sz = 16 byte (sizeof megasas_sge_skinny)
4345 * Total 960 byte (15 MFI frame of 64 byte)
4347 * Fusion adapter require only 3 extra frame.
4348 * max_num_sge = 16 (defined as MAX_IOCTL_SGE)
4349 * max_sge_sz = 12 byte (sizeof megasas_sge64)
4350 * Total 192 byte (3 MFI frame of 64 byte)
4352 frame_count = (instance->adapter_type == MFI_SERIES) ?
4354 instance->mfi_frame_size = MEGAMFI_FRAME_SIZE * frame_count;
4356 * Use DMA pool facility provided by PCI layer
4358 instance->frame_dma_pool = dma_pool_create("megasas frame pool",
4359 &instance->pdev->dev,
4360 instance->mfi_frame_size, 256, 0);
4362 if (!instance->frame_dma_pool) {
4363 dev_printk(KERN_DEBUG, &instance->pdev->dev, "failed to setup frame pool\n");
4367 instance->sense_dma_pool = dma_pool_create("megasas sense pool",
4368 &instance->pdev->dev, 128,
4371 if (!instance->sense_dma_pool) {
4372 dev_printk(KERN_DEBUG, &instance->pdev->dev, "failed to setup sense pool\n");
4374 dma_pool_destroy(instance->frame_dma_pool);
4375 instance->frame_dma_pool = NULL;
4381 * Allocate and attach a frame to each of the commands in cmd_list.
4382 * By making cmd->index as the context instead of the &cmd, we can
4383 * always use 32bit context regardless of the architecture
4385 for (i = 0; i < max_cmd; i++) {
4387 cmd = instance->cmd_list[i];
4389 cmd->frame = dma_pool_zalloc(instance->frame_dma_pool,
4390 GFP_KERNEL, &cmd->frame_phys_addr);
4392 cmd->sense = dma_pool_alloc(instance->sense_dma_pool,
4393 GFP_KERNEL, &cmd->sense_phys_addr);
4396 * megasas_teardown_frame_pool() takes care of freeing
4397 * whatever has been allocated
4399 if (!cmd->frame || !cmd->sense) {
4400 dev_printk(KERN_DEBUG, &instance->pdev->dev, "dma_pool_alloc failed\n");
4401 megasas_teardown_frame_pool(instance);
4405 cmd->frame->io.context = cpu_to_le32(cmd->index);
4406 cmd->frame->io.pad_0 = 0;
4407 if ((instance->adapter_type == MFI_SERIES) && reset_devices)
4408 cmd->frame->hdr.cmd = MFI_CMD_INVALID;
4415 * megasas_free_cmds - Free all the cmds in the free cmd pool
4416 * @instance: Adapter soft state
4418 void megasas_free_cmds(struct megasas_instance *instance)
4422 /* First free the MFI frame pool */
4423 megasas_teardown_frame_pool(instance);
4425 /* Free all the commands in the cmd_list */
4426 for (i = 0; i < instance->max_mfi_cmds; i++)
4428 kfree(instance->cmd_list[i]);
4430 /* Free the cmd_list buffer itself */
4431 kfree(instance->cmd_list);
4432 instance->cmd_list = NULL;
4434 INIT_LIST_HEAD(&instance->cmd_pool);
4438 * megasas_alloc_cmds - Allocates the command packets
4439 * @instance: Adapter soft state
4441 * Each command that is issued to the FW, whether IO commands from the OS or
4442 * internal commands like IOCTLs, are wrapped in local data structure called
4443 * megasas_cmd. The frame embedded in this megasas_cmd is actually issued to
4446 * Each frame has a 32-bit field called context (tag). This context is used
4447 * to get back the megasas_cmd from the frame when a frame gets completed in
4448 * the ISR. Typically the address of the megasas_cmd itself would be used as
4449 * the context. But we wanted to keep the differences between 32 and 64 bit
4450 * systems to the mininum. We always use 32 bit integers for the context. In
4451 * this driver, the 32 bit values are the indices into an array cmd_list.
4452 * This array is used only to look up the megasas_cmd given the context. The
4453 * free commands themselves are maintained in a linked list called cmd_pool.
4455 int megasas_alloc_cmds(struct megasas_instance *instance)
4460 struct megasas_cmd *cmd;
4462 max_cmd = instance->max_mfi_cmds;
4465 * instance->cmd_list is an array of struct megasas_cmd pointers.
4466 * Allocate the dynamic array first and then allocate individual
4469 instance->cmd_list = kcalloc(max_cmd, sizeof(struct megasas_cmd*), GFP_KERNEL);
4471 if (!instance->cmd_list) {
4472 dev_printk(KERN_DEBUG, &instance->pdev->dev, "out of memory\n");
4476 for (i = 0; i < max_cmd; i++) {
4477 instance->cmd_list[i] = kmalloc(sizeof(struct megasas_cmd),
4480 if (!instance->cmd_list[i]) {
4482 for (j = 0; j < i; j++)
4483 kfree(instance->cmd_list[j]);
4485 kfree(instance->cmd_list);
4486 instance->cmd_list = NULL;
4492 for (i = 0; i < max_cmd; i++) {
4493 cmd = instance->cmd_list[i];
4494 memset(cmd, 0, sizeof(struct megasas_cmd));
4497 cmd->instance = instance;
4499 list_add_tail(&cmd->list, &instance->cmd_pool);
4503 * Create a frame pool and assign one frame to each cmd
4505 if (megasas_create_frame_pool(instance)) {
4506 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Error creating frame DMA pool\n");
4507 megasas_free_cmds(instance);
4515 * dcmd_timeout_ocr_possible - Check if OCR is possible based on Driver/FW state.
4516 * @instance: Adapter soft state
4518 * Return 0 for only Fusion adapter, if driver load/unload is not in progress
4519 * or FW is not under OCR.
4522 dcmd_timeout_ocr_possible(struct megasas_instance *instance) {
4524 if (instance->adapter_type == MFI_SERIES)
4525 return KILL_ADAPTER;
4526 else if (instance->unload ||
4527 test_bit(MEGASAS_FUSION_OCR_NOT_POSSIBLE,
4528 &instance->reset_flags))
4529 return IGNORE_TIMEOUT;
4531 return INITIATE_OCR;
4535 megasas_get_pd_info(struct megasas_instance *instance, struct scsi_device *sdev)
4538 struct megasas_cmd *cmd;
4539 struct megasas_dcmd_frame *dcmd;
4541 struct MR_PRIV_DEVICE *mr_device_priv_data;
4544 device_id = (sdev->channel * MEGASAS_MAX_DEV_PER_CHANNEL) + sdev->id;
4545 cmd = megasas_get_cmd(instance);
4548 dev_err(&instance->pdev->dev, "Failed to get cmd %s\n", __func__);
4552 dcmd = &cmd->frame->dcmd;
4554 memset(instance->pd_info, 0, sizeof(*instance->pd_info));
4555 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
4557 dcmd->mbox.s[0] = cpu_to_le16(device_id);
4558 dcmd->cmd = MFI_CMD_DCMD;
4559 dcmd->cmd_status = 0xFF;
4560 dcmd->sge_count = 1;
4561 dcmd->flags = MFI_FRAME_DIR_READ;
4564 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct MR_PD_INFO));
4565 dcmd->opcode = cpu_to_le32(MR_DCMD_PD_GET_INFO);
4567 megasas_set_dma_settings(instance, dcmd, instance->pd_info_h,
4568 sizeof(struct MR_PD_INFO));
4570 if ((instance->adapter_type != MFI_SERIES) &&
4571 !instance->mask_interrupts)
4572 ret = megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS);
4574 ret = megasas_issue_polled(instance, cmd);
4578 mr_device_priv_data = sdev->hostdata;
4579 le16_to_cpus((u16 *)&instance->pd_info->state.ddf.pdType);
4580 mr_device_priv_data->interface_type =
4581 instance->pd_info->state.ddf.pdType.intf;
4586 switch (dcmd_timeout_ocr_possible(instance)) {
4588 cmd->flags |= DRV_DCMD_SKIP_REFIRE;
4589 mutex_unlock(&instance->reset_mutex);
4590 megasas_reset_fusion(instance->host,
4591 MFI_IO_TIMEOUT_OCR);
4592 mutex_lock(&instance->reset_mutex);
4595 megaraid_sas_kill_hba(instance);
4597 case IGNORE_TIMEOUT:
4598 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n",
4599 __func__, __LINE__);
4606 if (ret != DCMD_TIMEOUT)
4607 megasas_return_cmd(instance, cmd);
4612 * megasas_get_pd_list_info - Returns FW's pd_list structure
4613 * @instance: Adapter soft state
4614 * @pd_list: pd_list structure
4616 * Issues an internal command (DCMD) to get the FW's controller PD
4617 * list structure. This information is mainly used to find out SYSTEM
4618 * supported by the FW.
4621 megasas_get_pd_list(struct megasas_instance *instance)
4623 int ret = 0, pd_index = 0;
4624 struct megasas_cmd *cmd;
4625 struct megasas_dcmd_frame *dcmd;
4626 struct MR_PD_LIST *ci;
4627 struct MR_PD_ADDRESS *pd_addr;
4629 if (instance->pd_list_not_supported) {
4630 dev_info(&instance->pdev->dev, "MR_DCMD_PD_LIST_QUERY "
4631 "not supported by firmware\n");
4635 ci = instance->pd_list_buf;
4637 cmd = megasas_get_cmd(instance);
4640 dev_printk(KERN_DEBUG, &instance->pdev->dev, "(get_pd_list): Failed to get cmd\n");
4644 dcmd = &cmd->frame->dcmd;
4646 memset(ci, 0, sizeof(*ci));
4647 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
4649 dcmd->mbox.b[0] = MR_PD_QUERY_TYPE_EXPOSED_TO_HOST;
4650 dcmd->mbox.b[1] = 0;
4651 dcmd->cmd = MFI_CMD_DCMD;
4652 dcmd->cmd_status = MFI_STAT_INVALID_STATUS;
4653 dcmd->sge_count = 1;
4654 dcmd->flags = MFI_FRAME_DIR_READ;
4657 dcmd->data_xfer_len = cpu_to_le32(MEGASAS_MAX_PD * sizeof(struct MR_PD_LIST));
4658 dcmd->opcode = cpu_to_le32(MR_DCMD_PD_LIST_QUERY);
4660 megasas_set_dma_settings(instance, dcmd, instance->pd_list_buf_h,
4661 (MEGASAS_MAX_PD * sizeof(struct MR_PD_LIST)));
4663 if ((instance->adapter_type != MFI_SERIES) &&
4664 !instance->mask_interrupts)
4665 ret = megasas_issue_blocked_cmd(instance, cmd,
4666 MFI_IO_TIMEOUT_SECS);
4668 ret = megasas_issue_polled(instance, cmd);
4672 dev_info(&instance->pdev->dev, "MR_DCMD_PD_LIST_QUERY "
4673 "failed/not supported by firmware\n");
4675 if (instance->adapter_type != MFI_SERIES)
4676 megaraid_sas_kill_hba(instance);
4678 instance->pd_list_not_supported = 1;
4682 switch (dcmd_timeout_ocr_possible(instance)) {
4684 cmd->flags |= DRV_DCMD_SKIP_REFIRE;
4686 * DCMD failed from AEN path.
4687 * AEN path already hold reset_mutex to avoid PCI access
4688 * while OCR is in progress.
4690 mutex_unlock(&instance->reset_mutex);
4691 megasas_reset_fusion(instance->host,
4692 MFI_IO_TIMEOUT_OCR);
4693 mutex_lock(&instance->reset_mutex);
4696 megaraid_sas_kill_hba(instance);
4698 case IGNORE_TIMEOUT:
4699 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d \n",
4700 __func__, __LINE__);
4708 if (megasas_dbg_lvl & LD_PD_DEBUG)
4709 dev_info(&instance->pdev->dev, "%s, sysPD count: 0x%x\n",
4710 __func__, le32_to_cpu(ci->count));
4712 if ((le32_to_cpu(ci->count) >
4713 (MEGASAS_MAX_PD_CHANNELS * MEGASAS_MAX_DEV_PER_CHANNEL)))
4716 memset(instance->local_pd_list, 0,
4717 MEGASAS_MAX_PD * sizeof(struct megasas_pd_list));
4719 for (pd_index = 0; pd_index < le32_to_cpu(ci->count); pd_index++) {
4720 instance->local_pd_list[le16_to_cpu(pd_addr->deviceId)].tid =
4721 le16_to_cpu(pd_addr->deviceId);
4722 instance->local_pd_list[le16_to_cpu(pd_addr->deviceId)].driveType =
4723 pd_addr->scsiDevType;
4724 instance->local_pd_list[le16_to_cpu(pd_addr->deviceId)].driveState =
4726 if (megasas_dbg_lvl & LD_PD_DEBUG)
4727 dev_info(&instance->pdev->dev,
4728 "PD%d: targetID: 0x%03x deviceType:0x%x\n",
4729 pd_index, le16_to_cpu(pd_addr->deviceId),
4730 pd_addr->scsiDevType);
4734 memcpy(instance->pd_list, instance->local_pd_list,
4735 sizeof(instance->pd_list));
4740 if (ret != DCMD_TIMEOUT)
4741 megasas_return_cmd(instance, cmd);
4747 * megasas_get_ld_list_info - Returns FW's ld_list structure
4748 * @instance: Adapter soft state
4749 * @ld_list: ld_list structure
4751 * Issues an internal command (DCMD) to get the FW's controller PD
4752 * list structure. This information is mainly used to find out SYSTEM
4753 * supported by the FW.
4756 megasas_get_ld_list(struct megasas_instance *instance)
4758 int ret = 0, ld_index = 0, ids = 0;
4759 struct megasas_cmd *cmd;
4760 struct megasas_dcmd_frame *dcmd;
4761 struct MR_LD_LIST *ci;
4762 dma_addr_t ci_h = 0;
4765 ci = instance->ld_list_buf;
4766 ci_h = instance->ld_list_buf_h;
4768 cmd = megasas_get_cmd(instance);
4771 dev_printk(KERN_DEBUG, &instance->pdev->dev, "megasas_get_ld_list: Failed to get cmd\n");
4775 dcmd = &cmd->frame->dcmd;
4777 memset(ci, 0, sizeof(*ci));
4778 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
4780 if (instance->supportmax256vd)
4781 dcmd->mbox.b[0] = 1;
4782 dcmd->cmd = MFI_CMD_DCMD;
4783 dcmd->cmd_status = MFI_STAT_INVALID_STATUS;
4784 dcmd->sge_count = 1;
4785 dcmd->flags = MFI_FRAME_DIR_READ;
4787 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct MR_LD_LIST));
4788 dcmd->opcode = cpu_to_le32(MR_DCMD_LD_GET_LIST);
4791 megasas_set_dma_settings(instance, dcmd, ci_h,
4792 sizeof(struct MR_LD_LIST));
4794 if ((instance->adapter_type != MFI_SERIES) &&
4795 !instance->mask_interrupts)
4796 ret = megasas_issue_blocked_cmd(instance, cmd,
4797 MFI_IO_TIMEOUT_SECS);
4799 ret = megasas_issue_polled(instance, cmd);
4801 ld_count = le32_to_cpu(ci->ldCount);
4805 megaraid_sas_kill_hba(instance);
4809 switch (dcmd_timeout_ocr_possible(instance)) {
4811 cmd->flags |= DRV_DCMD_SKIP_REFIRE;
4813 * DCMD failed from AEN path.
4814 * AEN path already hold reset_mutex to avoid PCI access
4815 * while OCR is in progress.
4817 mutex_unlock(&instance->reset_mutex);
4818 megasas_reset_fusion(instance->host,
4819 MFI_IO_TIMEOUT_OCR);
4820 mutex_lock(&instance->reset_mutex);
4823 megaraid_sas_kill_hba(instance);
4825 case IGNORE_TIMEOUT:
4826 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n",
4827 __func__, __LINE__);
4834 if (megasas_dbg_lvl & LD_PD_DEBUG)
4835 dev_info(&instance->pdev->dev, "%s, LD count: 0x%x\n",
4836 __func__, ld_count);
4838 if (ld_count > instance->fw_supported_vd_count)
4841 memset(instance->ld_ids, 0xff, MAX_LOGICAL_DRIVES_EXT);
4843 for (ld_index = 0; ld_index < ld_count; ld_index++) {
4844 if (ci->ldList[ld_index].state != 0) {
4845 ids = ci->ldList[ld_index].ref.targetId;
4846 instance->ld_ids[ids] = ci->ldList[ld_index].ref.targetId;
4847 if (megasas_dbg_lvl & LD_PD_DEBUG)
4848 dev_info(&instance->pdev->dev,
4849 "LD%d: targetID: 0x%03x\n",
4857 if (ret != DCMD_TIMEOUT)
4858 megasas_return_cmd(instance, cmd);
4864 * megasas_ld_list_query - Returns FW's ld_list structure
4865 * @instance: Adapter soft state
4866 * @query_type: ld_list structure type
4868 * Issues an internal command (DCMD) to get the FW's controller PD
4869 * list structure. This information is mainly used to find out SYSTEM
4870 * supported by the FW.
4873 megasas_ld_list_query(struct megasas_instance *instance, u8 query_type)
4875 int ret = 0, ld_index = 0, ids = 0;
4876 struct megasas_cmd *cmd;
4877 struct megasas_dcmd_frame *dcmd;
4878 struct MR_LD_TARGETID_LIST *ci;
4879 dma_addr_t ci_h = 0;
4882 ci = instance->ld_targetid_list_buf;
4883 ci_h = instance->ld_targetid_list_buf_h;
4885 cmd = megasas_get_cmd(instance);
4888 dev_warn(&instance->pdev->dev,
4889 "megasas_ld_list_query: Failed to get cmd\n");
4893 dcmd = &cmd->frame->dcmd;
4895 memset(ci, 0, sizeof(*ci));
4896 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
4898 dcmd->mbox.b[0] = query_type;
4899 if (instance->supportmax256vd)
4900 dcmd->mbox.b[2] = 1;
4902 dcmd->cmd = MFI_CMD_DCMD;
4903 dcmd->cmd_status = MFI_STAT_INVALID_STATUS;
4904 dcmd->sge_count = 1;
4905 dcmd->flags = MFI_FRAME_DIR_READ;
4907 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct MR_LD_TARGETID_LIST));
4908 dcmd->opcode = cpu_to_le32(MR_DCMD_LD_LIST_QUERY);
4911 megasas_set_dma_settings(instance, dcmd, ci_h,
4912 sizeof(struct MR_LD_TARGETID_LIST));
4914 if ((instance->adapter_type != MFI_SERIES) &&
4915 !instance->mask_interrupts)
4916 ret = megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS);
4918 ret = megasas_issue_polled(instance, cmd);
4922 dev_info(&instance->pdev->dev,
4923 "DCMD not supported by firmware - %s %d\n",
4924 __func__, __LINE__);
4925 ret = megasas_get_ld_list(instance);
4928 switch (dcmd_timeout_ocr_possible(instance)) {
4930 cmd->flags |= DRV_DCMD_SKIP_REFIRE;
4932 * DCMD failed from AEN path.
4933 * AEN path already hold reset_mutex to avoid PCI access
4934 * while OCR is in progress.
4936 mutex_unlock(&instance->reset_mutex);
4937 megasas_reset_fusion(instance->host,
4938 MFI_IO_TIMEOUT_OCR);
4939 mutex_lock(&instance->reset_mutex);
4942 megaraid_sas_kill_hba(instance);
4944 case IGNORE_TIMEOUT:
4945 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n",
4946 __func__, __LINE__);
4952 tgtid_count = le32_to_cpu(ci->count);
4954 if (megasas_dbg_lvl & LD_PD_DEBUG)
4955 dev_info(&instance->pdev->dev, "%s, LD count: 0x%x\n",
4956 __func__, tgtid_count);
4958 if ((tgtid_count > (instance->fw_supported_vd_count)))
4961 memset(instance->ld_ids, 0xff, MEGASAS_MAX_LD_IDS);
4962 for (ld_index = 0; ld_index < tgtid_count; ld_index++) {
4963 ids = ci->targetId[ld_index];
4964 instance->ld_ids[ids] = ci->targetId[ld_index];
4965 if (megasas_dbg_lvl & LD_PD_DEBUG)
4966 dev_info(&instance->pdev->dev, "LD%d: targetID: 0x%03x\n",
4967 ld_index, ci->targetId[ld_index]);
4973 if (ret != DCMD_TIMEOUT)
4974 megasas_return_cmd(instance, cmd);
4980 * megasas_host_device_list_query
4981 * dcmd.opcode - MR_DCMD_CTRL_DEVICE_LIST_GET
4982 * dcmd.mbox - reserved
4983 * dcmd.sge IN - ptr to return MR_HOST_DEVICE_LIST structure
4984 * Desc: This DCMD will return the combined device list
4985 * Status: MFI_STAT_OK - List returned successfully
4986 * MFI_STAT_INVALID_CMD - Firmware support for the feature has been
4988 * @instance: Adapter soft state
4989 * @is_probe: Driver probe check
4990 * Return: 0 if DCMD succeeded
4991 * non-zero if failed
4994 megasas_host_device_list_query(struct megasas_instance *instance,
4997 int ret, i, target_id;
4998 struct megasas_cmd *cmd;
4999 struct megasas_dcmd_frame *dcmd;
5000 struct MR_HOST_DEVICE_LIST *ci;
5004 ci = instance->host_device_list_buf;
5005 ci_h = instance->host_device_list_buf_h;
5007 cmd = megasas_get_cmd(instance);
5010 dev_warn(&instance->pdev->dev,
5011 "%s: failed to get cmd\n",
5016 dcmd = &cmd->frame->dcmd;
5018 memset(ci, 0, sizeof(*ci));
5019 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
5021 dcmd->mbox.b[0] = is_probe ? 0 : 1;
5022 dcmd->cmd = MFI_CMD_DCMD;
5023 dcmd->cmd_status = MFI_STAT_INVALID_STATUS;
5024 dcmd->sge_count = 1;
5025 dcmd->flags = MFI_FRAME_DIR_READ;
5028 dcmd->data_xfer_len = cpu_to_le32(HOST_DEVICE_LIST_SZ);
5029 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_DEVICE_LIST_GET);
5031 megasas_set_dma_settings(instance, dcmd, ci_h, HOST_DEVICE_LIST_SZ);
5033 if (!instance->mask_interrupts) {
5034 ret = megasas_issue_blocked_cmd(instance, cmd,
5035 MFI_IO_TIMEOUT_SECS);
5037 ret = megasas_issue_polled(instance, cmd);
5038 cmd->flags |= DRV_DCMD_SKIP_REFIRE;
5043 /* Fill the internal pd_list and ld_ids array based on
5044 * targetIds returned by FW
5046 count = le32_to_cpu(ci->count);
5048 if (count > (MEGASAS_MAX_PD + MAX_LOGICAL_DRIVES_EXT))
5051 if (megasas_dbg_lvl & LD_PD_DEBUG)
5052 dev_info(&instance->pdev->dev, "%s, Device count: 0x%x\n",
5055 memset(instance->local_pd_list, 0,
5056 MEGASAS_MAX_PD * sizeof(struct megasas_pd_list));
5057 memset(instance->ld_ids, 0xff, MAX_LOGICAL_DRIVES_EXT);
5058 for (i = 0; i < count; i++) {
5059 target_id = le16_to_cpu(ci->host_device_list[i].target_id);
5060 if (ci->host_device_list[i].flags.u.bits.is_sys_pd) {
5061 instance->local_pd_list[target_id].tid = target_id;
5062 instance->local_pd_list[target_id].driveType =
5063 ci->host_device_list[i].scsi_type;
5064 instance->local_pd_list[target_id].driveState =
5066 if (megasas_dbg_lvl & LD_PD_DEBUG)
5067 dev_info(&instance->pdev->dev,
5068 "Device %d: PD targetID: 0x%03x deviceType:0x%x\n",
5069 i, target_id, ci->host_device_list[i].scsi_type);
5071 instance->ld_ids[target_id] = target_id;
5072 if (megasas_dbg_lvl & LD_PD_DEBUG)
5073 dev_info(&instance->pdev->dev,
5074 "Device %d: LD targetID: 0x%03x\n",
5079 memcpy(instance->pd_list, instance->local_pd_list,
5080 sizeof(instance->pd_list));
5084 switch (dcmd_timeout_ocr_possible(instance)) {
5086 cmd->flags |= DRV_DCMD_SKIP_REFIRE;
5087 mutex_unlock(&instance->reset_mutex);
5088 megasas_reset_fusion(instance->host,
5089 MFI_IO_TIMEOUT_OCR);
5090 mutex_lock(&instance->reset_mutex);
5093 megaraid_sas_kill_hba(instance);
5095 case IGNORE_TIMEOUT:
5096 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n",
5097 __func__, __LINE__);
5102 dev_err(&instance->pdev->dev,
5103 "%s: MR_DCMD_CTRL_DEVICE_LIST_GET failed\n",
5108 if (ret != DCMD_TIMEOUT)
5109 megasas_return_cmd(instance, cmd);
5115 * megasas_update_ext_vd_details : Update details w.r.t Extended VD
5116 * instance : Controller's instance
5118 static void megasas_update_ext_vd_details(struct megasas_instance *instance)
5120 struct fusion_context *fusion;
5121 u32 ventura_map_sz = 0;
5123 fusion = instance->ctrl_context;
5124 /* For MFI based controllers return dummy success */
5128 instance->supportmax256vd =
5129 instance->ctrl_info_buf->adapterOperations3.supportMaxExtLDs;
5130 /* Below is additional check to address future FW enhancement */
5131 if (instance->ctrl_info_buf->max_lds > 64)
5132 instance->supportmax256vd = 1;
5134 instance->drv_supported_vd_count = MEGASAS_MAX_LD_CHANNELS
5135 * MEGASAS_MAX_DEV_PER_CHANNEL;
5136 instance->drv_supported_pd_count = MEGASAS_MAX_PD_CHANNELS
5137 * MEGASAS_MAX_DEV_PER_CHANNEL;
5138 if (instance->supportmax256vd) {
5139 instance->fw_supported_vd_count = MAX_LOGICAL_DRIVES_EXT;
5140 instance->fw_supported_pd_count = MAX_PHYSICAL_DEVICES;
5142 instance->fw_supported_vd_count = MAX_LOGICAL_DRIVES;
5143 instance->fw_supported_pd_count = MAX_PHYSICAL_DEVICES;
5146 dev_info(&instance->pdev->dev,
5147 "FW provided supportMaxExtLDs: %d\tmax_lds: %d\n",
5148 instance->ctrl_info_buf->adapterOperations3.supportMaxExtLDs ? 1 : 0,
5149 instance->ctrl_info_buf->max_lds);
5151 if (instance->max_raid_mapsize) {
5152 ventura_map_sz = instance->max_raid_mapsize *
5153 MR_MIN_MAP_SIZE; /* 64k */
5154 fusion->current_map_sz = ventura_map_sz;
5155 fusion->max_map_sz = ventura_map_sz;
5157 fusion->old_map_sz =
5158 struct_size_t(struct MR_FW_RAID_MAP, ldSpanMap,
5159 instance->fw_supported_vd_count);
5160 fusion->new_map_sz = sizeof(struct MR_FW_RAID_MAP_EXT);
5162 fusion->max_map_sz =
5163 max(fusion->old_map_sz, fusion->new_map_sz);
5165 if (instance->supportmax256vd)
5166 fusion->current_map_sz = fusion->new_map_sz;
5168 fusion->current_map_sz = fusion->old_map_sz;
5170 /* irrespective of FW raid maps, driver raid map is constant */
5171 fusion->drv_map_sz = sizeof(struct MR_DRV_RAID_MAP_ALL);
5175 * dcmd.opcode - MR_DCMD_CTRL_SNAPDUMP_GET_PROPERTIES
5176 * dcmd.hdr.length - number of bytes to read
5177 * dcmd.sge - Ptr to MR_SNAPDUMP_PROPERTIES
5178 * Desc: Fill in snapdump properties
5179 * Status: MFI_STAT_OK- Command successful
5181 void megasas_get_snapdump_properties(struct megasas_instance *instance)
5184 struct megasas_cmd *cmd;
5185 struct megasas_dcmd_frame *dcmd;
5186 struct MR_SNAPDUMP_PROPERTIES *ci;
5187 dma_addr_t ci_h = 0;
5189 ci = instance->snapdump_prop;
5190 ci_h = instance->snapdump_prop_h;
5195 cmd = megasas_get_cmd(instance);
5198 dev_dbg(&instance->pdev->dev, "Failed to get a free cmd\n");
5202 dcmd = &cmd->frame->dcmd;
5204 memset(ci, 0, sizeof(*ci));
5205 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
5207 dcmd->cmd = MFI_CMD_DCMD;
5208 dcmd->cmd_status = MFI_STAT_INVALID_STATUS;
5209 dcmd->sge_count = 1;
5210 dcmd->flags = MFI_FRAME_DIR_READ;
5213 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct MR_SNAPDUMP_PROPERTIES));
5214 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_SNAPDUMP_GET_PROPERTIES);
5216 megasas_set_dma_settings(instance, dcmd, ci_h,
5217 sizeof(struct MR_SNAPDUMP_PROPERTIES));
5219 if (!instance->mask_interrupts) {
5220 ret = megasas_issue_blocked_cmd(instance, cmd,
5221 MFI_IO_TIMEOUT_SECS);
5223 ret = megasas_issue_polled(instance, cmd);
5224 cmd->flags |= DRV_DCMD_SKIP_REFIRE;
5229 instance->snapdump_wait_time =
5230 min_t(u8, ci->trigger_min_num_sec_before_ocr,
5231 MEGASAS_MAX_SNAP_DUMP_WAIT_TIME);
5235 switch (dcmd_timeout_ocr_possible(instance)) {
5237 cmd->flags |= DRV_DCMD_SKIP_REFIRE;
5238 mutex_unlock(&instance->reset_mutex);
5239 megasas_reset_fusion(instance->host,
5240 MFI_IO_TIMEOUT_OCR);
5241 mutex_lock(&instance->reset_mutex);
5244 megaraid_sas_kill_hba(instance);
5246 case IGNORE_TIMEOUT:
5247 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n",
5248 __func__, __LINE__);
5253 if (ret != DCMD_TIMEOUT)
5254 megasas_return_cmd(instance, cmd);
5258 * megasas_get_ctrl_info - Returns FW's controller structure
5259 * @instance: Adapter soft state
5261 * Issues an internal command (DCMD) to get the FW's controller structure.
5262 * This information is mainly used to find out the maximum IO transfer per
5263 * command supported by the FW.
5266 megasas_get_ctrl_info(struct megasas_instance *instance)
5269 struct megasas_cmd *cmd;
5270 struct megasas_dcmd_frame *dcmd;
5271 struct megasas_ctrl_info *ci;
5272 dma_addr_t ci_h = 0;
5274 ci = instance->ctrl_info_buf;
5275 ci_h = instance->ctrl_info_buf_h;
5277 cmd = megasas_get_cmd(instance);
5280 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to get a free cmd\n");
5284 dcmd = &cmd->frame->dcmd;
5286 memset(ci, 0, sizeof(*ci));
5287 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
5289 dcmd->cmd = MFI_CMD_DCMD;
5290 dcmd->cmd_status = MFI_STAT_INVALID_STATUS;
5291 dcmd->sge_count = 1;
5292 dcmd->flags = MFI_FRAME_DIR_READ;
5295 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct megasas_ctrl_info));
5296 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_GET_INFO);
5297 dcmd->mbox.b[0] = 1;
5299 megasas_set_dma_settings(instance, dcmd, ci_h,
5300 sizeof(struct megasas_ctrl_info));
5302 if ((instance->adapter_type != MFI_SERIES) &&
5303 !instance->mask_interrupts) {
5304 ret = megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS);
5306 ret = megasas_issue_polled(instance, cmd);
5307 cmd->flags |= DRV_DCMD_SKIP_REFIRE;
5312 /* Save required controller information in
5313 * CPU endianness format.
5315 le32_to_cpus((u32 *)&ci->properties.OnOffProperties);
5316 le16_to_cpus((u16 *)&ci->properties.on_off_properties2);
5317 le32_to_cpus((u32 *)&ci->adapterOperations2);
5318 le32_to_cpus((u32 *)&ci->adapterOperations3);
5319 le16_to_cpus((u16 *)&ci->adapter_operations4);
5320 le32_to_cpus((u32 *)&ci->adapter_operations5);
5322 /* Update the latest Ext VD info.
5323 * From Init path, store current firmware details.
5324 * From OCR path, detect any firmware properties changes.
5325 * in case of Firmware upgrade without system reboot.
5327 megasas_update_ext_vd_details(instance);
5328 instance->support_seqnum_jbod_fp =
5329 ci->adapterOperations3.useSeqNumJbodFP;
5330 instance->support_morethan256jbod =
5331 ci->adapter_operations4.support_pd_map_target_id;
5332 instance->support_nvme_passthru =
5333 ci->adapter_operations4.support_nvme_passthru;
5334 instance->support_pci_lane_margining =
5335 ci->adapter_operations5.support_pci_lane_margining;
5336 instance->task_abort_tmo = ci->TaskAbortTO;
5337 instance->max_reset_tmo = ci->MaxResetTO;
5339 /*Check whether controller is iMR or MR */
5340 instance->is_imr = (ci->memory_size ? 0 : 1);
5342 instance->snapdump_wait_time =
5343 (ci->properties.on_off_properties2.enable_snap_dump ?
5344 MEGASAS_DEFAULT_SNAP_DUMP_WAIT_TIME : 0);
5346 instance->enable_fw_dev_list =
5347 ci->properties.on_off_properties2.enable_fw_dev_list;
5349 dev_info(&instance->pdev->dev,
5350 "controller type\t: %s(%dMB)\n",
5351 instance->is_imr ? "iMR" : "MR",
5352 le16_to_cpu(ci->memory_size));
5354 instance->disableOnlineCtrlReset =
5355 ci->properties.OnOffProperties.disableOnlineCtrlReset;
5356 instance->secure_jbod_support =
5357 ci->adapterOperations3.supportSecurityonJBOD;
5358 dev_info(&instance->pdev->dev, "Online Controller Reset(OCR)\t: %s\n",
5359 instance->disableOnlineCtrlReset ? "Disabled" : "Enabled");
5360 dev_info(&instance->pdev->dev, "Secure JBOD support\t: %s\n",
5361 instance->secure_jbod_support ? "Yes" : "No");
5362 dev_info(&instance->pdev->dev, "NVMe passthru support\t: %s\n",
5363 instance->support_nvme_passthru ? "Yes" : "No");
5364 dev_info(&instance->pdev->dev,
5365 "FW provided TM TaskAbort/Reset timeout\t: %d secs/%d secs\n",
5366 instance->task_abort_tmo, instance->max_reset_tmo);
5367 dev_info(&instance->pdev->dev, "JBOD sequence map support\t: %s\n",
5368 instance->support_seqnum_jbod_fp ? "Yes" : "No");
5369 dev_info(&instance->pdev->dev, "PCI Lane Margining support\t: %s\n",
5370 instance->support_pci_lane_margining ? "Yes" : "No");
5375 switch (dcmd_timeout_ocr_possible(instance)) {
5377 cmd->flags |= DRV_DCMD_SKIP_REFIRE;
5378 mutex_unlock(&instance->reset_mutex);
5379 megasas_reset_fusion(instance->host,
5380 MFI_IO_TIMEOUT_OCR);
5381 mutex_lock(&instance->reset_mutex);
5384 megaraid_sas_kill_hba(instance);
5386 case IGNORE_TIMEOUT:
5387 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n",
5388 __func__, __LINE__);
5393 megaraid_sas_kill_hba(instance);
5398 if (ret != DCMD_TIMEOUT)
5399 megasas_return_cmd(instance, cmd);
5405 * megasas_set_crash_dump_params - Sends address of crash dump DMA buffer
5408 * @instance: Adapter soft state
5409 * @crash_buf_state - tell FW to turn ON/OFF crash dump feature
5410 MR_CRASH_BUF_TURN_OFF = 0
5411 MR_CRASH_BUF_TURN_ON = 1
5412 * @return 0 on success non-zero on failure.
5413 * Issues an internal command (DCMD) to set parameters for crash dump feature.
5414 * Driver will send address of crash dump DMA buffer and set mbox to tell FW
5415 * that driver supports crash dump feature. This DCMD will be sent only if
5416 * crash dump feature is supported by the FW.
5419 int megasas_set_crash_dump_params(struct megasas_instance *instance,
5423 struct megasas_cmd *cmd;
5424 struct megasas_dcmd_frame *dcmd;
5426 cmd = megasas_get_cmd(instance);
5429 dev_err(&instance->pdev->dev, "Failed to get a free cmd\n");
5434 dcmd = &cmd->frame->dcmd;
5436 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
5437 dcmd->mbox.b[0] = crash_buf_state;
5438 dcmd->cmd = MFI_CMD_DCMD;
5439 dcmd->cmd_status = MFI_STAT_INVALID_STATUS;
5440 dcmd->sge_count = 1;
5441 dcmd->flags = MFI_FRAME_DIR_NONE;
5444 dcmd->data_xfer_len = cpu_to_le32(CRASH_DMA_BUF_SIZE);
5445 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_SET_CRASH_DUMP_PARAMS);
5447 megasas_set_dma_settings(instance, dcmd, instance->crash_dump_h,
5448 CRASH_DMA_BUF_SIZE);
5450 if ((instance->adapter_type != MFI_SERIES) &&
5451 !instance->mask_interrupts)
5452 ret = megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS);
5454 ret = megasas_issue_polled(instance, cmd);
5456 if (ret == DCMD_TIMEOUT) {
5457 switch (dcmd_timeout_ocr_possible(instance)) {
5459 cmd->flags |= DRV_DCMD_SKIP_REFIRE;
5460 megasas_reset_fusion(instance->host,
5461 MFI_IO_TIMEOUT_OCR);
5464 megaraid_sas_kill_hba(instance);
5466 case IGNORE_TIMEOUT:
5467 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n",
5468 __func__, __LINE__);
5472 megasas_return_cmd(instance, cmd);
5478 * megasas_issue_init_mfi - Initializes the FW
5479 * @instance: Adapter soft state
5481 * Issues the INIT MFI cmd
5484 megasas_issue_init_mfi(struct megasas_instance *instance)
5487 struct megasas_cmd *cmd;
5488 struct megasas_init_frame *init_frame;
5489 struct megasas_init_queue_info *initq_info;
5490 dma_addr_t init_frame_h;
5491 dma_addr_t initq_info_h;
5494 * Prepare a init frame. Note the init frame points to queue info
5495 * structure. Each frame has SGL allocated after first 64 bytes. For
5496 * this frame - since we don't need any SGL - we use SGL's space as
5497 * queue info structure
5499 * We will not get a NULL command below. We just created the pool.
5501 cmd = megasas_get_cmd(instance);
5503 init_frame = (struct megasas_init_frame *)cmd->frame;
5504 initq_info = (struct megasas_init_queue_info *)
5505 ((unsigned long)init_frame + 64);
5507 init_frame_h = cmd->frame_phys_addr;
5508 initq_info_h = init_frame_h + 64;
5510 context = init_frame->context;
5511 memset(init_frame, 0, MEGAMFI_FRAME_SIZE);
5512 memset(initq_info, 0, sizeof(struct megasas_init_queue_info));
5513 init_frame->context = context;
5515 initq_info->reply_queue_entries = cpu_to_le32(instance->max_fw_cmds + 1);
5516 initq_info->reply_queue_start_phys_addr_lo = cpu_to_le32(instance->reply_queue_h);
5518 initq_info->producer_index_phys_addr_lo = cpu_to_le32(instance->producer_h);
5519 initq_info->consumer_index_phys_addr_lo = cpu_to_le32(instance->consumer_h);
5521 init_frame->cmd = MFI_CMD_INIT;
5522 init_frame->cmd_status = MFI_STAT_INVALID_STATUS;
5523 init_frame->queue_info_new_phys_addr_lo =
5524 cpu_to_le32(lower_32_bits(initq_info_h));
5525 init_frame->queue_info_new_phys_addr_hi =
5526 cpu_to_le32(upper_32_bits(initq_info_h));
5528 init_frame->data_xfer_len = cpu_to_le32(sizeof(struct megasas_init_queue_info));
5531 * disable the intr before firing the init frame to FW
5533 instance->instancet->disable_intr(instance);
5536 * Issue the init frame in polled mode
5539 if (megasas_issue_polled(instance, cmd)) {
5540 dev_err(&instance->pdev->dev, "Failed to init firmware\n");
5541 megasas_return_cmd(instance, cmd);
5545 megasas_return_cmd(instance, cmd);
5554 megasas_init_adapter_mfi(struct megasas_instance *instance)
5560 * Get various operational parameters from status register
5562 instance->max_fw_cmds = instance->instancet->read_fw_status_reg(instance) & 0x00FFFF;
5564 * Reduce the max supported cmds by 1. This is to ensure that the
5565 * reply_q_sz (1 more than the max cmd that driver may send)
5566 * does not exceed max cmds that the FW can support
5568 instance->max_fw_cmds = instance->max_fw_cmds-1;
5569 instance->max_mfi_cmds = instance->max_fw_cmds;
5570 instance->max_num_sge = (instance->instancet->read_fw_status_reg(instance) & 0xFF0000) >>
5573 * For MFI skinny adapters, MEGASAS_SKINNY_INT_CMDS commands
5574 * are reserved for IOCTL + driver's internal DCMDs.
5576 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0073SKINNY) ||
5577 (instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0071SKINNY)) {
5578 instance->max_scsi_cmds = (instance->max_fw_cmds -
5579 MEGASAS_SKINNY_INT_CMDS);
5580 sema_init(&instance->ioctl_sem, MEGASAS_SKINNY_INT_CMDS);
5582 instance->max_scsi_cmds = (instance->max_fw_cmds -
5584 sema_init(&instance->ioctl_sem, (MEGASAS_MFI_IOCTL_CMDS));
5587 instance->cur_can_queue = instance->max_scsi_cmds;
5589 * Create a pool of commands
5591 if (megasas_alloc_cmds(instance))
5592 goto fail_alloc_cmds;
5595 * Allocate memory for reply queue. Length of reply queue should
5596 * be _one_ more than the maximum commands handled by the firmware.
5598 * Note: When FW completes commands, it places corresponding contex
5599 * values in this circular reply queue. This circular queue is a fairly
5600 * typical producer-consumer queue. FW is the producer (of completed
5601 * commands) and the driver is the consumer.
5603 context_sz = sizeof(u32);
5604 reply_q_sz = context_sz * (instance->max_fw_cmds + 1);
5606 instance->reply_queue = dma_alloc_coherent(&instance->pdev->dev,
5607 reply_q_sz, &instance->reply_queue_h, GFP_KERNEL);
5609 if (!instance->reply_queue) {
5610 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Out of DMA mem for reply queue\n");
5611 goto fail_reply_queue;
5614 if (megasas_issue_init_mfi(instance))
5617 if (megasas_get_ctrl_info(instance)) {
5618 dev_err(&instance->pdev->dev, "(%d): Could get controller info "
5619 "Fail from %s %d\n", instance->unique_id,
5620 __func__, __LINE__);
5624 instance->fw_support_ieee = 0;
5625 instance->fw_support_ieee =
5626 (instance->instancet->read_fw_status_reg(instance) &
5629 dev_notice(&instance->pdev->dev, "megasas_init_mfi: fw_support_ieee=%d",
5630 instance->fw_support_ieee);
5632 if (instance->fw_support_ieee)
5633 instance->flag_ieee = 1;
5639 dma_free_coherent(&instance->pdev->dev, reply_q_sz,
5640 instance->reply_queue, instance->reply_queue_h);
5642 megasas_free_cmds(instance);
5649 void megasas_setup_irq_poll(struct megasas_instance *instance)
5651 struct megasas_irq_context *irq_ctx;
5654 count = instance->msix_vectors > 0 ? instance->msix_vectors : 1;
5656 /* Initialize IRQ poll */
5657 for (i = 0; i < count; i++) {
5658 irq_ctx = &instance->irq_context[i];
5659 irq_ctx->os_irq = pci_irq_vector(instance->pdev, i);
5660 irq_ctx->irq_poll_scheduled = false;
5661 irq_poll_init(&irq_ctx->irqpoll,
5662 instance->threshold_reply_count,
5668 * megasas_setup_irqs_ioapic - register legacy interrupts.
5669 * @instance: Adapter soft state
5671 * Do not enable interrupt, only setup ISRs.
5673 * Return 0 on success.
5676 megasas_setup_irqs_ioapic(struct megasas_instance *instance)
5678 struct pci_dev *pdev;
5680 pdev = instance->pdev;
5681 instance->irq_context[0].instance = instance;
5682 instance->irq_context[0].MSIxIndex = 0;
5683 snprintf(instance->irq_context->name, MEGASAS_MSIX_NAME_LEN, "%s%u",
5684 "megasas", instance->host->host_no);
5685 if (request_irq(pci_irq_vector(pdev, 0),
5686 instance->instancet->service_isr, IRQF_SHARED,
5687 instance->irq_context->name, &instance->irq_context[0])) {
5688 dev_err(&instance->pdev->dev,
5689 "Failed to register IRQ from %s %d\n",
5690 __func__, __LINE__);
5693 instance->perf_mode = MR_LATENCY_PERF_MODE;
5694 instance->low_latency_index_start = 0;
5699 * megasas_setup_irqs_msix - register MSI-x interrupts.
5700 * @instance: Adapter soft state
5701 * @is_probe: Driver probe check
5703 * Do not enable interrupt, only setup ISRs.
5705 * Return 0 on success.
5708 megasas_setup_irqs_msix(struct megasas_instance *instance, u8 is_probe)
5711 struct pci_dev *pdev;
5713 pdev = instance->pdev;
5716 for (i = 0; i < instance->msix_vectors; i++) {
5717 instance->irq_context[i].instance = instance;
5718 instance->irq_context[i].MSIxIndex = i;
5719 snprintf(instance->irq_context[i].name, MEGASAS_MSIX_NAME_LEN, "%s%u-msix%u",
5720 "megasas", instance->host->host_no, i);
5721 if (request_irq(pci_irq_vector(pdev, i),
5722 instance->instancet->service_isr, 0, instance->irq_context[i].name,
5723 &instance->irq_context[i])) {
5724 dev_err(&instance->pdev->dev,
5725 "Failed to register IRQ for vector %d.\n", i);
5726 for (j = 0; j < i; j++) {
5727 if (j < instance->low_latency_index_start)
5728 irq_update_affinity_hint(
5729 pci_irq_vector(pdev, j), NULL);
5730 free_irq(pci_irq_vector(pdev, j),
5731 &instance->irq_context[j]);
5733 /* Retry irq register for IO_APIC*/
5734 instance->msix_vectors = 0;
5735 instance->msix_load_balance = false;
5737 pci_free_irq_vectors(instance->pdev);
5738 return megasas_setup_irqs_ioapic(instance);
5749 * megasas_destroy_irqs- unregister interrupts.
5750 * @instance: Adapter soft state
5754 megasas_destroy_irqs(struct megasas_instance *instance) {
5758 struct megasas_irq_context *irq_ctx;
5760 count = instance->msix_vectors > 0 ? instance->msix_vectors : 1;
5761 if (instance->adapter_type != MFI_SERIES) {
5762 for (i = 0; i < count; i++) {
5763 irq_ctx = &instance->irq_context[i];
5764 irq_poll_disable(&irq_ctx->irqpoll);
5768 if (instance->msix_vectors)
5769 for (i = 0; i < instance->msix_vectors; i++) {
5770 if (i < instance->low_latency_index_start)
5771 irq_update_affinity_hint(
5772 pci_irq_vector(instance->pdev, i), NULL);
5773 free_irq(pci_irq_vector(instance->pdev, i),
5774 &instance->irq_context[i]);
5777 free_irq(pci_irq_vector(instance->pdev, 0),
5778 &instance->irq_context[0]);
5782 * megasas_setup_jbod_map - setup jbod map for FP seq_number.
5783 * @instance: Adapter soft state
5785 * Return 0 on success.
5788 megasas_setup_jbod_map(struct megasas_instance *instance)
5791 struct fusion_context *fusion = instance->ctrl_context;
5792 size_t pd_seq_map_sz;
5794 pd_seq_map_sz = struct_size_t(struct MR_PD_CFG_SEQ_NUM_SYNC, seq,
5795 MAX_PHYSICAL_DEVICES);
5797 instance->use_seqnum_jbod_fp =
5798 instance->support_seqnum_jbod_fp;
5799 if (reset_devices || !fusion ||
5800 !instance->support_seqnum_jbod_fp) {
5801 dev_info(&instance->pdev->dev,
5802 "JBOD sequence map is disabled %s %d\n",
5803 __func__, __LINE__);
5804 instance->use_seqnum_jbod_fp = false;
5808 if (fusion->pd_seq_sync[0])
5811 for (i = 0; i < JBOD_MAPS_COUNT; i++) {
5812 fusion->pd_seq_sync[i] = dma_alloc_coherent
5813 (&instance->pdev->dev, pd_seq_map_sz,
5814 &fusion->pd_seq_phys[i], GFP_KERNEL);
5815 if (!fusion->pd_seq_sync[i]) {
5816 dev_err(&instance->pdev->dev,
5817 "Failed to allocate memory from %s %d\n",
5818 __func__, __LINE__);
5820 dma_free_coherent(&instance->pdev->dev,
5821 pd_seq_map_sz, fusion->pd_seq_sync[0],
5822 fusion->pd_seq_phys[0]);
5823 fusion->pd_seq_sync[0] = NULL;
5825 instance->use_seqnum_jbod_fp = false;
5831 if (!megasas_sync_pd_seq_num(instance, false) &&
5832 !megasas_sync_pd_seq_num(instance, true))
5833 instance->use_seqnum_jbod_fp = true;
5835 instance->use_seqnum_jbod_fp = false;
5838 static void megasas_setup_reply_map(struct megasas_instance *instance)
5840 const struct cpumask *mask;
5841 unsigned int queue, cpu, low_latency_index_start;
5843 low_latency_index_start = instance->low_latency_index_start;
5845 for (queue = low_latency_index_start; queue < instance->msix_vectors; queue++) {
5846 mask = pci_irq_get_affinity(instance->pdev, queue);
5850 for_each_cpu(cpu, mask)
5851 instance->reply_map[cpu] = queue;
5856 queue = low_latency_index_start;
5857 for_each_possible_cpu(cpu) {
5858 instance->reply_map[cpu] = queue;
5859 if (queue == (instance->msix_vectors - 1))
5860 queue = low_latency_index_start;
5867 * megasas_get_device_list - Get the PD and LD device list from FW.
5868 * @instance: Adapter soft state
5869 * @return: Success or failure
5871 * Issue DCMDs to Firmware to get the PD and LD list.
5872 * Based on the FW support, driver sends the HOST_DEVICE_LIST or combination
5873 * of PD_LIST/LD_LIST_QUERY DCMDs to get the device list.
5876 int megasas_get_device_list(struct megasas_instance *instance)
5878 if (instance->enable_fw_dev_list) {
5879 if (megasas_host_device_list_query(instance, true))
5882 if (megasas_get_pd_list(instance) < 0) {
5883 dev_err(&instance->pdev->dev, "failed to get PD list\n");
5887 if (megasas_ld_list_query(instance,
5888 MR_LD_QUERY_TYPE_EXPOSED_TO_HOST)) {
5889 dev_err(&instance->pdev->dev, "failed to get LD list\n");
5898 * megasas_set_high_iops_queue_affinity_and_hint - Set affinity and hint
5899 * for high IOPS queues
5900 * @instance: Adapter soft state
5904 megasas_set_high_iops_queue_affinity_and_hint(struct megasas_instance *instance)
5908 const struct cpumask *mask;
5910 if (instance->perf_mode == MR_BALANCED_PERF_MODE) {
5911 mask = cpumask_of_node(dev_to_node(&instance->pdev->dev));
5913 for (i = 0; i < instance->low_latency_index_start; i++) {
5914 irq = pci_irq_vector(instance->pdev, i);
5915 irq_set_affinity_and_hint(irq, mask);
5921 __megasas_alloc_irq_vectors(struct megasas_instance *instance)
5924 struct irq_affinity desc = { .pre_vectors = instance->low_latency_index_start };
5925 struct irq_affinity *descp = &desc;
5927 irq_flags = PCI_IRQ_MSIX;
5929 if (instance->smp_affinity_enable)
5930 irq_flags |= PCI_IRQ_AFFINITY | PCI_IRQ_ALL_TYPES;
5934 /* Do not allocate msix vectors for poll_queues.
5935 * msix_vectors is always within a range of FW supported reply queue.
5937 i = pci_alloc_irq_vectors_affinity(instance->pdev,
5938 instance->low_latency_index_start,
5939 instance->msix_vectors - instance->iopoll_q_count, irq_flags, descp);
5945 * megasas_alloc_irq_vectors - Allocate IRQ vectors/enable MSI-x vectors
5946 * @instance: Adapter soft state
5950 megasas_alloc_irq_vectors(struct megasas_instance *instance)
5953 unsigned int num_msix_req;
5955 instance->iopoll_q_count = 0;
5956 if ((instance->adapter_type != MFI_SERIES) &&
5959 instance->perf_mode = MR_LATENCY_PERF_MODE;
5960 instance->low_latency_index_start = 1;
5962 /* reserve for default and non-mananged pre-vector. */
5963 if (instance->msix_vectors > (poll_queues + 2))
5964 instance->iopoll_q_count = poll_queues;
5966 instance->iopoll_q_count = 0;
5968 num_msix_req = num_online_cpus() + instance->low_latency_index_start;
5969 instance->msix_vectors = min(num_msix_req,
5970 instance->msix_vectors);
5974 i = __megasas_alloc_irq_vectors(instance);
5976 if (((instance->perf_mode == MR_BALANCED_PERF_MODE)
5977 || instance->iopoll_q_count) &&
5978 (i != (instance->msix_vectors - instance->iopoll_q_count))) {
5979 if (instance->msix_vectors)
5980 pci_free_irq_vectors(instance->pdev);
5981 /* Disable Balanced IOPS mode and try realloc vectors */
5982 instance->perf_mode = MR_LATENCY_PERF_MODE;
5983 instance->low_latency_index_start = 1;
5984 num_msix_req = num_online_cpus() + instance->low_latency_index_start;
5986 instance->msix_vectors = min(num_msix_req,
5987 instance->msix_vectors);
5989 instance->iopoll_q_count = 0;
5990 i = __megasas_alloc_irq_vectors(instance);
5994 dev_info(&instance->pdev->dev,
5995 "requested/available msix %d/%d poll_queue %d\n",
5996 instance->msix_vectors - instance->iopoll_q_count,
5997 i, instance->iopoll_q_count);
6000 instance->msix_vectors = i;
6002 instance->msix_vectors = 0;
6004 if (instance->smp_affinity_enable)
6005 megasas_set_high_iops_queue_affinity_and_hint(instance);
6009 * megasas_init_fw - Initializes the FW
6010 * @instance: Adapter soft state
6012 * This is the main function for initializing firmware
6015 static int megasas_init_fw(struct megasas_instance *instance)
6018 u32 max_sectors_2, tmp_sectors, msix_enable;
6019 u32 scratch_pad_1, scratch_pad_2, scratch_pad_3, status_reg;
6020 resource_size_t base_addr;
6021 void *base_addr_phys;
6022 struct megasas_ctrl_info *ctrl_info = NULL;
6023 unsigned long bar_list;
6025 struct IOV_111 *iovPtr;
6026 struct fusion_context *fusion;
6027 bool intr_coalescing;
6028 unsigned int num_msix_req;
6031 fusion = instance->ctrl_context;
6033 /* Find first memory bar */
6034 bar_list = pci_select_bars(instance->pdev, IORESOURCE_MEM);
6035 instance->bar = find_first_bit(&bar_list, BITS_PER_LONG);
6036 if (pci_request_selected_regions(instance->pdev, 1<<instance->bar,
6038 dev_printk(KERN_DEBUG, &instance->pdev->dev, "IO memory region busy!\n");
6042 base_addr = pci_resource_start(instance->pdev, instance->bar);
6043 instance->reg_set = ioremap(base_addr, 8192);
6045 if (!instance->reg_set) {
6046 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to map IO mem\n");
6050 base_addr_phys = &base_addr;
6051 dev_printk(KERN_DEBUG, &instance->pdev->dev,
6052 "BAR:0x%lx BAR's base_addr(phys):%pa mapped virt_addr:0x%p\n",
6053 instance->bar, base_addr_phys, instance->reg_set);
6055 if (instance->adapter_type != MFI_SERIES)
6056 instance->instancet = &megasas_instance_template_fusion;
6058 switch (instance->pdev->device) {
6059 case PCI_DEVICE_ID_LSI_SAS1078R:
6060 case PCI_DEVICE_ID_LSI_SAS1078DE:
6061 instance->instancet = &megasas_instance_template_ppc;
6063 case PCI_DEVICE_ID_LSI_SAS1078GEN2:
6064 case PCI_DEVICE_ID_LSI_SAS0079GEN2:
6065 instance->instancet = &megasas_instance_template_gen2;
6067 case PCI_DEVICE_ID_LSI_SAS0073SKINNY:
6068 case PCI_DEVICE_ID_LSI_SAS0071SKINNY:
6069 instance->instancet = &megasas_instance_template_skinny;
6071 case PCI_DEVICE_ID_LSI_SAS1064R:
6072 case PCI_DEVICE_ID_DELL_PERC5:
6074 instance->instancet = &megasas_instance_template_xscale;
6075 instance->pd_list_not_supported = 1;
6080 if (megasas_transition_to_ready(instance, 0)) {
6081 dev_info(&instance->pdev->dev,
6082 "Failed to transition controller to ready from %s!\n",
6084 if (instance->adapter_type != MFI_SERIES) {
6085 status_reg = instance->instancet->read_fw_status_reg(
6087 if (status_reg & MFI_RESET_ADAPTER) {
6088 if (megasas_adp_reset_wait_for_ready
6089 (instance, true, 0) == FAILED)
6090 goto fail_ready_state;
6092 goto fail_ready_state;
6095 atomic_set(&instance->fw_reset_no_pci_access, 1);
6096 instance->instancet->adp_reset
6097 (instance, instance->reg_set);
6098 atomic_set(&instance->fw_reset_no_pci_access, 0);
6100 /*waiting for about 30 second before retry*/
6103 if (megasas_transition_to_ready(instance, 0))
6104 goto fail_ready_state;
6107 dev_info(&instance->pdev->dev,
6108 "FW restarted successfully from %s!\n",
6112 megasas_init_ctrl_params(instance);
6114 if (megasas_set_dma_mask(instance))
6115 goto fail_ready_state;
6117 if (megasas_alloc_ctrl_mem(instance))
6118 goto fail_alloc_dma_buf;
6120 if (megasas_alloc_ctrl_dma_buffers(instance))
6121 goto fail_alloc_dma_buf;
6123 fusion = instance->ctrl_context;
6125 if (instance->adapter_type >= VENTURA_SERIES) {
6127 megasas_readl(instance,
6128 &instance->reg_set->outbound_scratch_pad_2);
6129 instance->max_raid_mapsize = ((scratch_pad_2 >>
6130 MR_MAX_RAID_MAP_SIZE_OFFSET_SHIFT) &
6131 MR_MAX_RAID_MAP_SIZE_MASK);
6134 instance->enable_sdev_max_qd = enable_sdev_max_qd;
6136 switch (instance->adapter_type) {
6137 case VENTURA_SERIES:
6138 fusion->pcie_bw_limitation = true;
6141 fusion->r56_div_offload = true;
6147 /* Check if MSI-X is supported while in ready state */
6148 msix_enable = (instance->instancet->read_fw_status_reg(instance) &
6150 if (msix_enable && !msix_disable) {
6152 scratch_pad_1 = megasas_readl
6153 (instance, &instance->reg_set->outbound_scratch_pad_1);
6154 /* Check max MSI-X vectors */
6156 if (instance->adapter_type == THUNDERBOLT_SERIES) {
6157 /* Thunderbolt Series*/
6158 instance->msix_vectors = (scratch_pad_1
6159 & MR_MAX_REPLY_QUEUES_OFFSET) + 1;
6161 instance->msix_vectors = ((scratch_pad_1
6162 & MR_MAX_REPLY_QUEUES_EXT_OFFSET)
6163 >> MR_MAX_REPLY_QUEUES_EXT_OFFSET_SHIFT) + 1;
6166 * For Invader series, > 8 MSI-x vectors
6167 * supported by FW/HW implies combined
6168 * reply queue mode is enabled.
6169 * For Ventura series, > 16 MSI-x vectors
6170 * supported by FW/HW implies combined
6171 * reply queue mode is enabled.
6173 switch (instance->adapter_type) {
6174 case INVADER_SERIES:
6175 if (instance->msix_vectors > 8)
6176 instance->msix_combined = true;
6179 case VENTURA_SERIES:
6180 if (instance->msix_vectors > 16)
6181 instance->msix_combined = true;
6186 instance->is_rdpq = (scratch_pad_1 & MR_RDPQ_MODE_OFFSET) ?
6189 if (instance->adapter_type >= INVADER_SERIES &&
6190 !instance->msix_combined) {
6191 instance->msix_load_balance = true;
6192 instance->smp_affinity_enable = false;
6195 /* Save 1-15 reply post index address to local memory
6196 * Index 0 is already saved from reg offset
6197 * MPI2_REPLY_POST_HOST_INDEX_OFFSET
6199 for (loop = 1; loop < MR_MAX_MSIX_REG_ARRAY; loop++) {
6200 instance->reply_post_host_index_addr[loop] =
6202 ((u8 __iomem *)instance->reg_set +
6203 MPI2_SUP_REPLY_POST_HOST_INDEX_OFFSET
6208 dev_info(&instance->pdev->dev,
6209 "firmware supports msix\t: (%d)",
6210 instance->msix_vectors);
6212 instance->msix_vectors = min(msix_vectors,
6213 instance->msix_vectors);
6214 } else /* MFI adapters */
6215 instance->msix_vectors = 1;
6219 * For Aero (if some conditions are met), driver will configure a
6220 * few additional reply queues with interrupt coalescing enabled.
6221 * These queues with interrupt coalescing enabled are called
6222 * High IOPS queues and rest of reply queues (based on number of
6223 * logical CPUs) are termed as Low latency queues.
6225 * Total Number of reply queues = High IOPS queues + low latency queues
6227 * For rest of fusion adapters, 1 additional reply queue will be
6228 * reserved for management commands, rest of reply queues
6229 * (based on number of logical CPUs) will be used for IOs and
6230 * referenced as IO queues.
6231 * Total Number of reply queues = 1 + IO queues
6233 * MFI adapters supports single MSI-x so single reply queue
6234 * will be used for IO and management commands.
6237 intr_coalescing = (scratch_pad_1 & MR_INTR_COALESCING_SUPPORT_OFFSET) ?
6239 if (intr_coalescing &&
6240 (num_online_cpus() >= MR_HIGH_IOPS_QUEUE_COUNT) &&
6241 (instance->msix_vectors == MEGASAS_MAX_MSIX_QUEUES))
6242 instance->perf_mode = MR_BALANCED_PERF_MODE;
6244 instance->perf_mode = MR_LATENCY_PERF_MODE;
6247 if (instance->adapter_type == AERO_SERIES) {
6248 pcie_capability_read_word(instance->pdev, PCI_EXP_LNKSTA, &lnksta);
6249 speed = lnksta & PCI_EXP_LNKSTA_CLS;
6252 * For Aero, if PCIe link speed is <16 GT/s, then driver should operate
6253 * in latency perf mode and enable R1 PCI bandwidth algorithm
6256 instance->perf_mode = MR_LATENCY_PERF_MODE;
6257 fusion->pcie_bw_limitation = true;
6261 * Performance mode settings provided through module parameter-perf_mode will
6262 * take affect only for:
6263 * 1. Aero family of adapters.
6264 * 2. When user sets module parameter- perf_mode in range of 0-2.
6266 if ((perf_mode >= MR_BALANCED_PERF_MODE) &&
6267 (perf_mode <= MR_LATENCY_PERF_MODE))
6268 instance->perf_mode = perf_mode;
6270 * If intr coalescing is not supported by controller FW, then IOPS
6271 * and Balanced modes are not feasible.
6273 if (!intr_coalescing)
6274 instance->perf_mode = MR_LATENCY_PERF_MODE;
6278 if (instance->perf_mode == MR_BALANCED_PERF_MODE)
6279 instance->low_latency_index_start =
6280 MR_HIGH_IOPS_QUEUE_COUNT;
6282 instance->low_latency_index_start = 1;
6284 num_msix_req = num_online_cpus() + instance->low_latency_index_start;
6286 instance->msix_vectors = min(num_msix_req,
6287 instance->msix_vectors);
6289 megasas_alloc_irq_vectors(instance);
6290 if (!instance->msix_vectors)
6291 instance->msix_load_balance = false;
6294 * MSI-X host index 0 is common for all adapter.
6295 * It is used for all MPT based Adapters.
6297 if (instance->msix_combined) {
6298 instance->reply_post_host_index_addr[0] =
6299 (u32 *)((u8 *)instance->reg_set +
6300 MPI2_SUP_REPLY_POST_HOST_INDEX_OFFSET);
6302 instance->reply_post_host_index_addr[0] =
6303 (u32 *)((u8 *)instance->reg_set +
6304 MPI2_REPLY_POST_HOST_INDEX_OFFSET);
6307 if (!instance->msix_vectors) {
6308 i = pci_alloc_irq_vectors(instance->pdev, 1, 1, PCI_IRQ_LEGACY);
6310 goto fail_init_adapter;
6313 megasas_setup_reply_map(instance);
6315 dev_info(&instance->pdev->dev,
6316 "current msix/online cpus\t: (%d/%d)\n",
6317 instance->msix_vectors, (unsigned int)num_online_cpus());
6318 dev_info(&instance->pdev->dev,
6319 "RDPQ mode\t: (%s)\n", instance->is_rdpq ? "enabled" : "disabled");
6321 tasklet_init(&instance->isr_tasklet, instance->instancet->tasklet,
6322 (unsigned long)instance);
6325 * Below are default value for legacy Firmware.
6326 * non-fusion based controllers
6328 instance->fw_supported_vd_count = MAX_LOGICAL_DRIVES;
6329 instance->fw_supported_pd_count = MAX_PHYSICAL_DEVICES;
6330 /* Get operational params, sge flags, send init cmd to controller */
6331 if (instance->instancet->init_adapter(instance))
6332 goto fail_init_adapter;
6334 if (instance->adapter_type >= VENTURA_SERIES) {
6336 megasas_readl(instance,
6337 &instance->reg_set->outbound_scratch_pad_3);
6338 if ((scratch_pad_3 & MR_NVME_PAGE_SIZE_MASK) >=
6339 MR_DEFAULT_NVME_PAGE_SHIFT)
6340 instance->nvme_page_size =
6341 (1 << (scratch_pad_3 & MR_NVME_PAGE_SIZE_MASK));
6343 dev_info(&instance->pdev->dev,
6344 "NVME page size\t: (%d)\n", instance->nvme_page_size);
6347 if (instance->msix_vectors ?
6348 megasas_setup_irqs_msix(instance, 1) :
6349 megasas_setup_irqs_ioapic(instance))
6350 goto fail_init_adapter;
6352 if (instance->adapter_type != MFI_SERIES)
6353 megasas_setup_irq_poll(instance);
6355 instance->instancet->enable_intr(instance);
6357 dev_info(&instance->pdev->dev, "INIT adapter done\n");
6359 megasas_setup_jbod_map(instance);
6361 if (megasas_get_device_list(instance) != SUCCESS) {
6362 dev_err(&instance->pdev->dev,
6363 "%s: megasas_get_device_list failed\n",
6365 goto fail_get_ld_pd_list;
6368 /* stream detection initialization */
6369 if (instance->adapter_type >= VENTURA_SERIES) {
6370 fusion->stream_detect_by_ld =
6371 kcalloc(MAX_LOGICAL_DRIVES_EXT,
6372 sizeof(struct LD_STREAM_DETECT *),
6374 if (!fusion->stream_detect_by_ld) {
6375 dev_err(&instance->pdev->dev,
6376 "unable to allocate stream detection for pool of LDs\n");
6377 goto fail_get_ld_pd_list;
6379 for (i = 0; i < MAX_LOGICAL_DRIVES_EXT; ++i) {
6380 fusion->stream_detect_by_ld[i] =
6381 kzalloc(sizeof(struct LD_STREAM_DETECT),
6383 if (!fusion->stream_detect_by_ld[i]) {
6384 dev_err(&instance->pdev->dev,
6385 "unable to allocate stream detect by LD\n ");
6386 for (j = 0; j < i; ++j)
6387 kfree(fusion->stream_detect_by_ld[j]);
6388 kfree(fusion->stream_detect_by_ld);
6389 fusion->stream_detect_by_ld = NULL;
6390 goto fail_get_ld_pd_list;
6392 fusion->stream_detect_by_ld[i]->mru_bit_map
6398 * Compute the max allowed sectors per IO: The controller info has two
6399 * limits on max sectors. Driver should use the minimum of these two.
6401 * 1 << stripe_sz_ops.min = max sectors per strip
6403 * Note that older firmwares ( < FW ver 30) didn't report information
6404 * to calculate max_sectors_1. So the number ended up as zero always.
6407 ctrl_info = instance->ctrl_info_buf;
6409 max_sectors_1 = (1 << ctrl_info->stripe_sz_ops.min) *
6410 le16_to_cpu(ctrl_info->max_strips_per_io);
6411 max_sectors_2 = le32_to_cpu(ctrl_info->max_request_size);
6413 tmp_sectors = min_t(u32, max_sectors_1, max_sectors_2);
6415 instance->peerIsPresent = ctrl_info->cluster.peerIsPresent;
6416 instance->passive = ctrl_info->cluster.passive;
6417 memcpy(instance->clusterId, ctrl_info->clusterId, sizeof(instance->clusterId));
6418 instance->UnevenSpanSupport =
6419 ctrl_info->adapterOperations2.supportUnevenSpans;
6420 if (instance->UnevenSpanSupport) {
6421 struct fusion_context *fusion = instance->ctrl_context;
6422 if (MR_ValidateMapInfo(instance, instance->map_id))
6423 fusion->fast_path_io = 1;
6425 fusion->fast_path_io = 0;
6428 if (ctrl_info->host_interface.SRIOV) {
6429 instance->requestorId = ctrl_info->iov.requestorId;
6430 if (instance->pdev->device == PCI_DEVICE_ID_LSI_PLASMA) {
6431 if (!ctrl_info->adapterOperations2.activePassive)
6432 instance->PlasmaFW111 = 1;
6434 dev_info(&instance->pdev->dev, "SR-IOV: firmware type: %s\n",
6435 instance->PlasmaFW111 ? "1.11" : "new");
6437 if (instance->PlasmaFW111) {
6438 iovPtr = (struct IOV_111 *)
6439 ((unsigned char *)ctrl_info + IOV_111_OFFSET);
6440 instance->requestorId = iovPtr->requestorId;
6443 dev_info(&instance->pdev->dev, "SRIOV: VF requestorId %d\n",
6444 instance->requestorId);
6447 instance->crash_dump_fw_support =
6448 ctrl_info->adapterOperations3.supportCrashDump;
6449 instance->crash_dump_drv_support =
6450 (instance->crash_dump_fw_support &&
6451 instance->crash_dump_buf);
6452 if (instance->crash_dump_drv_support)
6453 megasas_set_crash_dump_params(instance,
6454 MR_CRASH_BUF_TURN_OFF);
6457 if (instance->crash_dump_buf)
6458 dma_free_coherent(&instance->pdev->dev,
6460 instance->crash_dump_buf,
6461 instance->crash_dump_h);
6462 instance->crash_dump_buf = NULL;
6465 if (instance->snapdump_wait_time) {
6466 megasas_get_snapdump_properties(instance);
6467 dev_info(&instance->pdev->dev, "Snap dump wait time\t: %d\n",
6468 instance->snapdump_wait_time);
6471 dev_info(&instance->pdev->dev,
6472 "pci id\t\t: (0x%04x)/(0x%04x)/(0x%04x)/(0x%04x)\n",
6473 le16_to_cpu(ctrl_info->pci.vendor_id),
6474 le16_to_cpu(ctrl_info->pci.device_id),
6475 le16_to_cpu(ctrl_info->pci.sub_vendor_id),
6476 le16_to_cpu(ctrl_info->pci.sub_device_id));
6477 dev_info(&instance->pdev->dev, "unevenspan support : %s\n",
6478 instance->UnevenSpanSupport ? "yes" : "no");
6479 dev_info(&instance->pdev->dev, "firmware crash dump : %s\n",
6480 instance->crash_dump_drv_support ? "yes" : "no");
6481 dev_info(&instance->pdev->dev, "JBOD sequence map : %s\n",
6482 instance->use_seqnum_jbod_fp ? "enabled" : "disabled");
6484 instance->max_sectors_per_req = instance->max_num_sge *
6485 SGE_BUFFER_SIZE / 512;
6486 if (tmp_sectors && (instance->max_sectors_per_req > tmp_sectors))
6487 instance->max_sectors_per_req = tmp_sectors;
6489 /* Check for valid throttlequeuedepth module parameter */
6490 if (throttlequeuedepth &&
6491 throttlequeuedepth <= instance->max_scsi_cmds)
6492 instance->throttlequeuedepth = throttlequeuedepth;
6494 instance->throttlequeuedepth =
6495 MEGASAS_THROTTLE_QUEUE_DEPTH;
6497 if ((resetwaittime < 1) ||
6498 (resetwaittime > MEGASAS_RESET_WAIT_TIME))
6499 resetwaittime = MEGASAS_RESET_WAIT_TIME;
6501 if ((scmd_timeout < 10) || (scmd_timeout > MEGASAS_DEFAULT_CMD_TIMEOUT))
6502 scmd_timeout = MEGASAS_DEFAULT_CMD_TIMEOUT;
6504 /* Launch SR-IOV heartbeat timer */
6505 if (instance->requestorId) {
6506 if (!megasas_sriov_start_heartbeat(instance, 1)) {
6507 megasas_start_timer(instance);
6509 instance->skip_heartbeat_timer_del = 1;
6510 goto fail_get_ld_pd_list;
6515 * Create and start watchdog thread which will monitor
6516 * controller state every 1 sec and trigger OCR when
6517 * it enters fault state
6519 if (instance->adapter_type != MFI_SERIES)
6520 if (megasas_fusion_start_watchdog(instance) != SUCCESS)
6521 goto fail_start_watchdog;
6525 fail_start_watchdog:
6526 if (instance->requestorId && !instance->skip_heartbeat_timer_del)
6527 del_timer_sync(&instance->sriov_heartbeat_timer);
6528 fail_get_ld_pd_list:
6529 instance->instancet->disable_intr(instance);
6530 megasas_destroy_irqs(instance);
6532 if (instance->msix_vectors)
6533 pci_free_irq_vectors(instance->pdev);
6534 instance->msix_vectors = 0;
6536 megasas_free_ctrl_dma_buffers(instance);
6537 megasas_free_ctrl_mem(instance);
6539 iounmap(instance->reg_set);
6542 pci_release_selected_regions(instance->pdev, 1<<instance->bar);
6544 dev_err(&instance->pdev->dev, "Failed from %s %d\n",
6545 __func__, __LINE__);
6550 * megasas_release_mfi - Reverses the FW initialization
6551 * @instance: Adapter soft state
6553 static void megasas_release_mfi(struct megasas_instance *instance)
6555 u32 reply_q_sz = sizeof(u32) *(instance->max_mfi_cmds + 1);
6557 if (instance->reply_queue)
6558 dma_free_coherent(&instance->pdev->dev, reply_q_sz,
6559 instance->reply_queue, instance->reply_queue_h);
6561 megasas_free_cmds(instance);
6563 iounmap(instance->reg_set);
6565 pci_release_selected_regions(instance->pdev, 1<<instance->bar);
6569 * megasas_get_seq_num - Gets latest event sequence numbers
6570 * @instance: Adapter soft state
6571 * @eli: FW event log sequence numbers information
6573 * FW maintains a log of all events in a non-volatile area. Upper layers would
6574 * usually find out the latest sequence number of the events, the seq number at
6575 * the boot etc. They would "read" all the events below the latest seq number
6576 * by issuing a direct fw cmd (DCMD). For the future events (beyond latest seq
6577 * number), they would subsribe to AEN (asynchronous event notification) and
6578 * wait for the events to happen.
6581 megasas_get_seq_num(struct megasas_instance *instance,
6582 struct megasas_evt_log_info *eli)
6584 struct megasas_cmd *cmd;
6585 struct megasas_dcmd_frame *dcmd;
6586 struct megasas_evt_log_info *el_info;
6587 dma_addr_t el_info_h = 0;
6590 cmd = megasas_get_cmd(instance);
6596 dcmd = &cmd->frame->dcmd;
6597 el_info = dma_alloc_coherent(&instance->pdev->dev,
6598 sizeof(struct megasas_evt_log_info),
6599 &el_info_h, GFP_KERNEL);
6601 megasas_return_cmd(instance, cmd);
6605 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
6607 dcmd->cmd = MFI_CMD_DCMD;
6608 dcmd->cmd_status = 0x0;
6609 dcmd->sge_count = 1;
6610 dcmd->flags = MFI_FRAME_DIR_READ;
6613 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct megasas_evt_log_info));
6614 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_EVENT_GET_INFO);
6616 megasas_set_dma_settings(instance, dcmd, el_info_h,
6617 sizeof(struct megasas_evt_log_info));
6619 ret = megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS);
6620 if (ret != DCMD_SUCCESS) {
6621 dev_err(&instance->pdev->dev, "Failed from %s %d\n",
6622 __func__, __LINE__);
6627 * Copy the data back into callers buffer
6629 eli->newest_seq_num = el_info->newest_seq_num;
6630 eli->oldest_seq_num = el_info->oldest_seq_num;
6631 eli->clear_seq_num = el_info->clear_seq_num;
6632 eli->shutdown_seq_num = el_info->shutdown_seq_num;
6633 eli->boot_seq_num = el_info->boot_seq_num;
6636 dma_free_coherent(&instance->pdev->dev,
6637 sizeof(struct megasas_evt_log_info),
6638 el_info, el_info_h);
6640 megasas_return_cmd(instance, cmd);
6646 * megasas_register_aen - Registers for asynchronous event notification
6647 * @instance: Adapter soft state
6648 * @seq_num: The starting sequence number
6649 * @class_locale_word: Class of the event
6651 * This function subscribes for AEN for events beyond the @seq_num. It requests
6652 * to be notified if and only if the event is of type @class_locale
6655 megasas_register_aen(struct megasas_instance *instance, u32 seq_num,
6656 u32 class_locale_word)
6659 struct megasas_cmd *cmd;
6660 struct megasas_dcmd_frame *dcmd;
6661 union megasas_evt_class_locale curr_aen;
6662 union megasas_evt_class_locale prev_aen;
6665 * If there an AEN pending already (aen_cmd), check if the
6666 * class_locale of that pending AEN is inclusive of the new
6667 * AEN request we currently have. If it is, then we don't have
6668 * to do anything. In other words, whichever events the current
6669 * AEN request is subscribing to, have already been subscribed
6672 * If the old_cmd is _not_ inclusive, then we have to abort
6673 * that command, form a class_locale that is superset of both
6674 * old and current and re-issue to the FW
6677 curr_aen.word = class_locale_word;
6679 if (instance->aen_cmd) {
6682 le32_to_cpu(instance->aen_cmd->frame->dcmd.mbox.w[1]);
6684 if ((curr_aen.members.class < MFI_EVT_CLASS_DEBUG) ||
6685 (curr_aen.members.class > MFI_EVT_CLASS_DEAD)) {
6686 dev_info(&instance->pdev->dev,
6687 "%s %d out of range class %d send by application\n",
6688 __func__, __LINE__, curr_aen.members.class);
6693 * A class whose enum value is smaller is inclusive of all
6694 * higher values. If a PROGRESS (= -1) was previously
6695 * registered, then a new registration requests for higher
6696 * classes need not be sent to FW. They are automatically
6699 * Locale numbers don't have such hierarchy. They are bitmap
6702 if ((prev_aen.members.class <= curr_aen.members.class) &&
6703 !((prev_aen.members.locale & curr_aen.members.locale) ^
6704 curr_aen.members.locale)) {
6706 * Previously issued event registration includes
6707 * current request. Nothing to do.
6711 curr_aen.members.locale |= prev_aen.members.locale;
6713 if (prev_aen.members.class < curr_aen.members.class)
6714 curr_aen.members.class = prev_aen.members.class;
6716 instance->aen_cmd->abort_aen = 1;
6717 ret_val = megasas_issue_blocked_abort_cmd(instance,
6722 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to abort "
6723 "previous AEN command\n");
6729 cmd = megasas_get_cmd(instance);
6734 dcmd = &cmd->frame->dcmd;
6736 memset(instance->evt_detail, 0, sizeof(struct megasas_evt_detail));
6739 * Prepare DCMD for aen registration
6741 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
6743 dcmd->cmd = MFI_CMD_DCMD;
6744 dcmd->cmd_status = 0x0;
6745 dcmd->sge_count = 1;
6746 dcmd->flags = MFI_FRAME_DIR_READ;
6749 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct megasas_evt_detail));
6750 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_EVENT_WAIT);
6751 dcmd->mbox.w[0] = cpu_to_le32(seq_num);
6752 instance->last_seq_num = seq_num;
6753 dcmd->mbox.w[1] = cpu_to_le32(curr_aen.word);
6755 megasas_set_dma_settings(instance, dcmd, instance->evt_detail_h,
6756 sizeof(struct megasas_evt_detail));
6758 if (instance->aen_cmd != NULL) {
6759 megasas_return_cmd(instance, cmd);
6764 * Store reference to the cmd used to register for AEN. When an
6765 * application wants us to register for AEN, we have to abort this
6766 * cmd and re-register with a new EVENT LOCALE supplied by that app
6768 instance->aen_cmd = cmd;
6771 * Issue the aen registration frame
6773 instance->instancet->issue_dcmd(instance, cmd);
6778 /* megasas_get_target_prop - Send DCMD with below details to firmware.
6780 * This DCMD will fetch few properties of LD/system PD defined
6781 * in MR_TARGET_DEV_PROPERTIES. eg. Queue Depth, MDTS value.
6783 * DCMD send by drivers whenever new target is added to the OS.
6785 * dcmd.opcode - MR_DCMD_DEV_GET_TARGET_PROP
6786 * dcmd.mbox.b[0] - DCMD is to be fired for LD or system PD.
6787 * 0 = system PD, 1 = LD.
6788 * dcmd.mbox.s[1] - TargetID for LD/system PD.
6789 * dcmd.sge IN - Pointer to return MR_TARGET_DEV_PROPERTIES.
6791 * @instance: Adapter soft state
6792 * @sdev: OS provided scsi device
6794 * Returns 0 on success non-zero on failure.
6797 megasas_get_target_prop(struct megasas_instance *instance,
6798 struct scsi_device *sdev)
6801 struct megasas_cmd *cmd;
6802 struct megasas_dcmd_frame *dcmd;
6803 u16 targetId = ((sdev->channel % 2) * MEGASAS_MAX_DEV_PER_CHANNEL) +
6806 cmd = megasas_get_cmd(instance);
6809 dev_err(&instance->pdev->dev,
6810 "Failed to get cmd %s\n", __func__);
6814 dcmd = &cmd->frame->dcmd;
6816 memset(instance->tgt_prop, 0, sizeof(*instance->tgt_prop));
6817 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
6818 dcmd->mbox.b[0] = MEGASAS_IS_LOGICAL(sdev);
6820 dcmd->mbox.s[1] = cpu_to_le16(targetId);
6821 dcmd->cmd = MFI_CMD_DCMD;
6822 dcmd->cmd_status = 0xFF;
6823 dcmd->sge_count = 1;
6824 dcmd->flags = MFI_FRAME_DIR_READ;
6827 dcmd->data_xfer_len =
6828 cpu_to_le32(sizeof(struct MR_TARGET_PROPERTIES));
6829 dcmd->opcode = cpu_to_le32(MR_DCMD_DRV_GET_TARGET_PROP);
6831 megasas_set_dma_settings(instance, dcmd, instance->tgt_prop_h,
6832 sizeof(struct MR_TARGET_PROPERTIES));
6834 if ((instance->adapter_type != MFI_SERIES) &&
6835 !instance->mask_interrupts)
6836 ret = megasas_issue_blocked_cmd(instance,
6837 cmd, MFI_IO_TIMEOUT_SECS);
6839 ret = megasas_issue_polled(instance, cmd);
6843 switch (dcmd_timeout_ocr_possible(instance)) {
6845 cmd->flags |= DRV_DCMD_SKIP_REFIRE;
6846 mutex_unlock(&instance->reset_mutex);
6847 megasas_reset_fusion(instance->host,
6848 MFI_IO_TIMEOUT_OCR);
6849 mutex_lock(&instance->reset_mutex);
6852 megaraid_sas_kill_hba(instance);
6854 case IGNORE_TIMEOUT:
6855 dev_info(&instance->pdev->dev,
6856 "Ignore DCMD timeout: %s %d\n",
6857 __func__, __LINE__);
6863 megasas_return_cmd(instance, cmd);
6865 if (ret != DCMD_SUCCESS)
6866 dev_err(&instance->pdev->dev,
6867 "return from %s %d return value %d\n",
6868 __func__, __LINE__, ret);
6874 * megasas_start_aen - Subscribes to AEN during driver load time
6875 * @instance: Adapter soft state
6877 static int megasas_start_aen(struct megasas_instance *instance)
6879 struct megasas_evt_log_info eli;
6880 union megasas_evt_class_locale class_locale;
6883 * Get the latest sequence number from FW
6885 memset(&eli, 0, sizeof(eli));
6887 if (megasas_get_seq_num(instance, &eli))
6891 * Register AEN with FW for latest sequence number plus 1
6893 class_locale.members.reserved = 0;
6894 class_locale.members.locale = MR_EVT_LOCALE_ALL;
6895 class_locale.members.class = MR_EVT_CLASS_DEBUG;
6897 return megasas_register_aen(instance,
6898 le32_to_cpu(eli.newest_seq_num) + 1,
6903 * megasas_io_attach - Attaches this driver to SCSI mid-layer
6904 * @instance: Adapter soft state
6906 static int megasas_io_attach(struct megasas_instance *instance)
6908 struct Scsi_Host *host = instance->host;
6911 * Export parameters required by SCSI mid-layer
6913 host->unique_id = instance->unique_id;
6914 host->can_queue = instance->max_scsi_cmds;
6915 host->this_id = instance->init_id;
6916 host->sg_tablesize = instance->max_num_sge;
6918 if (instance->fw_support_ieee)
6919 instance->max_sectors_per_req = MEGASAS_MAX_SECTORS_IEEE;
6922 * Check if the module parameter value for max_sectors can be used
6924 if (max_sectors && max_sectors < instance->max_sectors_per_req)
6925 instance->max_sectors_per_req = max_sectors;
6928 if (((instance->pdev->device ==
6929 PCI_DEVICE_ID_LSI_SAS1078GEN2) ||
6930 (instance->pdev->device ==
6931 PCI_DEVICE_ID_LSI_SAS0079GEN2)) &&
6932 (max_sectors <= MEGASAS_MAX_SECTORS)) {
6933 instance->max_sectors_per_req = max_sectors;
6935 dev_info(&instance->pdev->dev, "max_sectors should be > 0"
6936 "and <= %d (or < 1MB for GEN2 controller)\n",
6937 instance->max_sectors_per_req);
6942 host->max_sectors = instance->max_sectors_per_req;
6943 host->cmd_per_lun = MEGASAS_DEFAULT_CMD_PER_LUN;
6944 host->max_channel = MEGASAS_MAX_CHANNELS - 1;
6945 host->max_id = MEGASAS_MAX_DEV_PER_CHANNEL;
6946 host->max_lun = MEGASAS_MAX_LUN;
6947 host->max_cmd_len = 16;
6949 /* Use shared host tagset only for fusion adaptors
6950 * if there are managed interrupts (smp affinity enabled case).
6951 * Single msix_vectors in kdump, so shared host tag is also disabled.
6954 host->host_tagset = 0;
6955 host->nr_hw_queues = 1;
6957 if ((instance->adapter_type != MFI_SERIES) &&
6958 (instance->msix_vectors > instance->low_latency_index_start) &&
6959 host_tagset_enable &&
6960 instance->smp_affinity_enable) {
6961 host->host_tagset = 1;
6962 host->nr_hw_queues = instance->msix_vectors -
6963 instance->low_latency_index_start + instance->iopoll_q_count;
6964 if (instance->iopoll_q_count)
6967 instance->iopoll_q_count = 0;
6970 dev_info(&instance->pdev->dev,
6971 "Max firmware commands: %d shared with default "
6972 "hw_queues = %d poll_queues %d\n", instance->max_fw_cmds,
6973 host->nr_hw_queues - instance->iopoll_q_count,
6974 instance->iopoll_q_count);
6976 * Notify the mid-layer about the new controller
6978 if (scsi_add_host(host, &instance->pdev->dev)) {
6979 dev_err(&instance->pdev->dev,
6980 "Failed to add host from %s %d\n",
6981 __func__, __LINE__);
6989 * megasas_set_dma_mask - Set DMA mask for supported controllers
6991 * @instance: Adapter soft state
6994 * For Ventura, driver/FW will operate in 63bit DMA addresses.
6997 * By default, driver/FW will operate in 32bit DMA addresses
6998 * for consistent DMA mapping but if 32 bit consistent
6999 * DMA mask fails, driver will try with 63 bit consistent
7000 * mask provided FW is true 63bit DMA capable
7002 * For older controllers(Thunderbolt and MFI based adapters)-
7003 * driver/FW will operate in 32 bit consistent DMA addresses.
7006 megasas_set_dma_mask(struct megasas_instance *instance)
7008 u64 consistent_mask;
7009 struct pci_dev *pdev;
7012 pdev = instance->pdev;
7013 consistent_mask = (instance->adapter_type >= VENTURA_SERIES) ?
7014 DMA_BIT_MASK(63) : DMA_BIT_MASK(32);
7017 if (dma_set_mask(&pdev->dev, DMA_BIT_MASK(63)) &&
7018 dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)))
7019 goto fail_set_dma_mask;
7021 if ((*pdev->dev.dma_mask == DMA_BIT_MASK(63)) &&
7022 (dma_set_coherent_mask(&pdev->dev, consistent_mask) &&
7023 dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)))) {
7025 * If 32 bit DMA mask fails, then try for 64 bit mask
7026 * for FW capable of handling 64 bit DMA.
7028 scratch_pad_1 = megasas_readl
7029 (instance, &instance->reg_set->outbound_scratch_pad_1);
7031 if (!(scratch_pad_1 & MR_CAN_HANDLE_64_BIT_DMA_OFFSET))
7032 goto fail_set_dma_mask;
7033 else if (dma_set_mask_and_coherent(&pdev->dev,
7035 goto fail_set_dma_mask;
7037 } else if (dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)))
7038 goto fail_set_dma_mask;
7040 if (pdev->dev.coherent_dma_mask == DMA_BIT_MASK(32))
7041 instance->consistent_mask_64bit = false;
7043 instance->consistent_mask_64bit = true;
7045 dev_info(&pdev->dev, "%s bit DMA mask and %s bit consistent mask\n",
7046 ((*pdev->dev.dma_mask == DMA_BIT_MASK(63)) ? "63" : "32"),
7047 (instance->consistent_mask_64bit ? "63" : "32"));
7052 dev_err(&pdev->dev, "Failed to set DMA mask\n");
7058 * megasas_set_adapter_type - Set adapter type.
7059 * Supported controllers can be divided in
7060 * different categories-
7061 * enum MR_ADAPTER_TYPE {
7063 * THUNDERBOLT_SERIES = 2,
7064 * INVADER_SERIES = 3,
7065 * VENTURA_SERIES = 4,
7068 * @instance: Adapter soft state
7071 static inline void megasas_set_adapter_type(struct megasas_instance *instance)
7073 if ((instance->pdev->vendor == PCI_VENDOR_ID_DELL) &&
7074 (instance->pdev->device == PCI_DEVICE_ID_DELL_PERC5)) {
7075 instance->adapter_type = MFI_SERIES;
7077 switch (instance->pdev->device) {
7078 case PCI_DEVICE_ID_LSI_AERO_10E1:
7079 case PCI_DEVICE_ID_LSI_AERO_10E2:
7080 case PCI_DEVICE_ID_LSI_AERO_10E5:
7081 case PCI_DEVICE_ID_LSI_AERO_10E6:
7082 instance->adapter_type = AERO_SERIES;
7084 case PCI_DEVICE_ID_LSI_VENTURA:
7085 case PCI_DEVICE_ID_LSI_CRUSADER:
7086 case PCI_DEVICE_ID_LSI_HARPOON:
7087 case PCI_DEVICE_ID_LSI_TOMCAT:
7088 case PCI_DEVICE_ID_LSI_VENTURA_4PORT:
7089 case PCI_DEVICE_ID_LSI_CRUSADER_4PORT:
7090 instance->adapter_type = VENTURA_SERIES;
7092 case PCI_DEVICE_ID_LSI_FUSION:
7093 case PCI_DEVICE_ID_LSI_PLASMA:
7094 instance->adapter_type = THUNDERBOLT_SERIES;
7096 case PCI_DEVICE_ID_LSI_INVADER:
7097 case PCI_DEVICE_ID_LSI_INTRUDER:
7098 case PCI_DEVICE_ID_LSI_INTRUDER_24:
7099 case PCI_DEVICE_ID_LSI_CUTLASS_52:
7100 case PCI_DEVICE_ID_LSI_CUTLASS_53:
7101 case PCI_DEVICE_ID_LSI_FURY:
7102 instance->adapter_type = INVADER_SERIES;
7104 default: /* For all other supported controllers */
7105 instance->adapter_type = MFI_SERIES;
7111 static inline int megasas_alloc_mfi_ctrl_mem(struct megasas_instance *instance)
7113 instance->producer = dma_alloc_coherent(&instance->pdev->dev,
7114 sizeof(u32), &instance->producer_h, GFP_KERNEL);
7115 instance->consumer = dma_alloc_coherent(&instance->pdev->dev,
7116 sizeof(u32), &instance->consumer_h, GFP_KERNEL);
7118 if (!instance->producer || !instance->consumer) {
7119 dev_err(&instance->pdev->dev,
7120 "Failed to allocate memory for producer, consumer\n");
7124 *instance->producer = 0;
7125 *instance->consumer = 0;
7130 * megasas_alloc_ctrl_mem - Allocate per controller memory for core data
7131 * structures which are not common across MFI
7132 * adapters and fusion adapters.
7133 * For MFI based adapters, allocate producer and
7134 * consumer buffers. For fusion adapters, allocate
7135 * memory for fusion context.
7136 * @instance: Adapter soft state
7137 * return: 0 for SUCCESS
7139 static int megasas_alloc_ctrl_mem(struct megasas_instance *instance)
7141 instance->reply_map = kcalloc(nr_cpu_ids, sizeof(unsigned int),
7143 if (!instance->reply_map)
7146 switch (instance->adapter_type) {
7148 if (megasas_alloc_mfi_ctrl_mem(instance))
7152 case VENTURA_SERIES:
7153 case THUNDERBOLT_SERIES:
7154 case INVADER_SERIES:
7155 if (megasas_alloc_fusion_context(instance))
7164 * megasas_free_ctrl_mem - Free fusion context for fusion adapters and
7165 * producer, consumer buffers for MFI adapters
7167 * @instance - Adapter soft instance
7170 static inline void megasas_free_ctrl_mem(struct megasas_instance *instance)
7172 kfree(instance->reply_map);
7173 if (instance->adapter_type == MFI_SERIES) {
7174 if (instance->producer)
7175 dma_free_coherent(&instance->pdev->dev, sizeof(u32),
7177 instance->producer_h);
7178 if (instance->consumer)
7179 dma_free_coherent(&instance->pdev->dev, sizeof(u32),
7181 instance->consumer_h);
7183 megasas_free_fusion_context(instance);
7188 * megasas_alloc_ctrl_dma_buffers - Allocate consistent DMA buffers during
7191 * @instance: Adapter soft instance
7193 * @return: O for SUCCESS
7196 int megasas_alloc_ctrl_dma_buffers(struct megasas_instance *instance)
7198 struct pci_dev *pdev = instance->pdev;
7199 struct fusion_context *fusion = instance->ctrl_context;
7201 instance->evt_detail = dma_alloc_coherent(&pdev->dev,
7202 sizeof(struct megasas_evt_detail),
7203 &instance->evt_detail_h, GFP_KERNEL);
7205 if (!instance->evt_detail) {
7206 dev_err(&instance->pdev->dev,
7207 "Failed to allocate event detail buffer\n");
7212 fusion->ioc_init_request =
7213 dma_alloc_coherent(&pdev->dev,
7214 sizeof(struct MPI2_IOC_INIT_REQUEST),
7215 &fusion->ioc_init_request_phys,
7218 if (!fusion->ioc_init_request) {
7220 "Failed to allocate ioc init request\n");
7224 instance->snapdump_prop = dma_alloc_coherent(&pdev->dev,
7225 sizeof(struct MR_SNAPDUMP_PROPERTIES),
7226 &instance->snapdump_prop_h, GFP_KERNEL);
7228 if (!instance->snapdump_prop)
7230 "Failed to allocate snapdump properties buffer\n");
7232 instance->host_device_list_buf = dma_alloc_coherent(&pdev->dev,
7233 HOST_DEVICE_LIST_SZ,
7234 &instance->host_device_list_buf_h,
7237 if (!instance->host_device_list_buf) {
7239 "Failed to allocate targetid list buffer\n");
7245 instance->pd_list_buf =
7246 dma_alloc_coherent(&pdev->dev,
7247 MEGASAS_MAX_PD * sizeof(struct MR_PD_LIST),
7248 &instance->pd_list_buf_h, GFP_KERNEL);
7250 if (!instance->pd_list_buf) {
7251 dev_err(&pdev->dev, "Failed to allocate PD list buffer\n");
7255 instance->ctrl_info_buf =
7256 dma_alloc_coherent(&pdev->dev,
7257 sizeof(struct megasas_ctrl_info),
7258 &instance->ctrl_info_buf_h, GFP_KERNEL);
7260 if (!instance->ctrl_info_buf) {
7262 "Failed to allocate controller info buffer\n");
7266 instance->ld_list_buf =
7267 dma_alloc_coherent(&pdev->dev,
7268 sizeof(struct MR_LD_LIST),
7269 &instance->ld_list_buf_h, GFP_KERNEL);
7271 if (!instance->ld_list_buf) {
7272 dev_err(&pdev->dev, "Failed to allocate LD list buffer\n");
7276 instance->ld_targetid_list_buf =
7277 dma_alloc_coherent(&pdev->dev,
7278 sizeof(struct MR_LD_TARGETID_LIST),
7279 &instance->ld_targetid_list_buf_h, GFP_KERNEL);
7281 if (!instance->ld_targetid_list_buf) {
7283 "Failed to allocate LD targetid list buffer\n");
7287 if (!reset_devices) {
7288 instance->system_info_buf =
7289 dma_alloc_coherent(&pdev->dev,
7290 sizeof(struct MR_DRV_SYSTEM_INFO),
7291 &instance->system_info_h, GFP_KERNEL);
7293 dma_alloc_coherent(&pdev->dev,
7294 sizeof(struct MR_PD_INFO),
7295 &instance->pd_info_h, GFP_KERNEL);
7296 instance->tgt_prop =
7297 dma_alloc_coherent(&pdev->dev,
7298 sizeof(struct MR_TARGET_PROPERTIES),
7299 &instance->tgt_prop_h, GFP_KERNEL);
7300 instance->crash_dump_buf =
7301 dma_alloc_coherent(&pdev->dev, CRASH_DMA_BUF_SIZE,
7302 &instance->crash_dump_h, GFP_KERNEL);
7304 if (!instance->system_info_buf)
7305 dev_err(&instance->pdev->dev,
7306 "Failed to allocate system info buffer\n");
7308 if (!instance->pd_info)
7309 dev_err(&instance->pdev->dev,
7310 "Failed to allocate pd_info buffer\n");
7312 if (!instance->tgt_prop)
7313 dev_err(&instance->pdev->dev,
7314 "Failed to allocate tgt_prop buffer\n");
7316 if (!instance->crash_dump_buf)
7317 dev_err(&instance->pdev->dev,
7318 "Failed to allocate crash dump buffer\n");
7325 * megasas_free_ctrl_dma_buffers - Free consistent DMA buffers allocated
7326 * during driver load time
7328 * @instance- Adapter soft instance
7332 void megasas_free_ctrl_dma_buffers(struct megasas_instance *instance)
7334 struct pci_dev *pdev = instance->pdev;
7335 struct fusion_context *fusion = instance->ctrl_context;
7337 if (instance->evt_detail)
7338 dma_free_coherent(&pdev->dev, sizeof(struct megasas_evt_detail),
7339 instance->evt_detail,
7340 instance->evt_detail_h);
7342 if (fusion && fusion->ioc_init_request)
7343 dma_free_coherent(&pdev->dev,
7344 sizeof(struct MPI2_IOC_INIT_REQUEST),
7345 fusion->ioc_init_request,
7346 fusion->ioc_init_request_phys);
7348 if (instance->pd_list_buf)
7349 dma_free_coherent(&pdev->dev,
7350 MEGASAS_MAX_PD * sizeof(struct MR_PD_LIST),
7351 instance->pd_list_buf,
7352 instance->pd_list_buf_h);
7354 if (instance->ld_list_buf)
7355 dma_free_coherent(&pdev->dev, sizeof(struct MR_LD_LIST),
7356 instance->ld_list_buf,
7357 instance->ld_list_buf_h);
7359 if (instance->ld_targetid_list_buf)
7360 dma_free_coherent(&pdev->dev, sizeof(struct MR_LD_TARGETID_LIST),
7361 instance->ld_targetid_list_buf,
7362 instance->ld_targetid_list_buf_h);
7364 if (instance->ctrl_info_buf)
7365 dma_free_coherent(&pdev->dev, sizeof(struct megasas_ctrl_info),
7366 instance->ctrl_info_buf,
7367 instance->ctrl_info_buf_h);
7369 if (instance->system_info_buf)
7370 dma_free_coherent(&pdev->dev, sizeof(struct MR_DRV_SYSTEM_INFO),
7371 instance->system_info_buf,
7372 instance->system_info_h);
7374 if (instance->pd_info)
7375 dma_free_coherent(&pdev->dev, sizeof(struct MR_PD_INFO),
7376 instance->pd_info, instance->pd_info_h);
7378 if (instance->tgt_prop)
7379 dma_free_coherent(&pdev->dev, sizeof(struct MR_TARGET_PROPERTIES),
7380 instance->tgt_prop, instance->tgt_prop_h);
7382 if (instance->crash_dump_buf)
7383 dma_free_coherent(&pdev->dev, CRASH_DMA_BUF_SIZE,
7384 instance->crash_dump_buf,
7385 instance->crash_dump_h);
7387 if (instance->snapdump_prop)
7388 dma_free_coherent(&pdev->dev,
7389 sizeof(struct MR_SNAPDUMP_PROPERTIES),
7390 instance->snapdump_prop,
7391 instance->snapdump_prop_h);
7393 if (instance->host_device_list_buf)
7394 dma_free_coherent(&pdev->dev,
7395 HOST_DEVICE_LIST_SZ,
7396 instance->host_device_list_buf,
7397 instance->host_device_list_buf_h);
7402 * megasas_init_ctrl_params - Initialize controller's instance
7403 * parameters before FW init
7404 * @instance - Adapter soft instance
7407 static inline void megasas_init_ctrl_params(struct megasas_instance *instance)
7409 instance->fw_crash_state = UNAVAILABLE;
7411 megasas_poll_wait_aen = 0;
7412 instance->issuepend_done = 1;
7413 atomic_set(&instance->adprecovery, MEGASAS_HBA_OPERATIONAL);
7416 * Initialize locks and queues
7418 INIT_LIST_HEAD(&instance->cmd_pool);
7419 INIT_LIST_HEAD(&instance->internal_reset_pending_q);
7421 atomic_set(&instance->fw_outstanding, 0);
7422 atomic64_set(&instance->total_io_count, 0);
7424 init_waitqueue_head(&instance->int_cmd_wait_q);
7425 init_waitqueue_head(&instance->abort_cmd_wait_q);
7427 mutex_init(&instance->crashdump_lock);
7428 spin_lock_init(&instance->mfi_pool_lock);
7429 spin_lock_init(&instance->hba_lock);
7430 spin_lock_init(&instance->stream_lock);
7431 spin_lock_init(&instance->completion_lock);
7433 mutex_init(&instance->reset_mutex);
7435 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0073SKINNY) ||
7436 (instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0071SKINNY))
7437 instance->flag_ieee = 1;
7440 instance->unload = 1;
7441 instance->last_time = 0;
7442 instance->disableOnlineCtrlReset = 1;
7443 instance->UnevenSpanSupport = 0;
7444 instance->smp_affinity_enable = smp_affinity_enable ? true : false;
7445 instance->msix_load_balance = false;
7447 if (instance->adapter_type != MFI_SERIES)
7448 INIT_WORK(&instance->work_init, megasas_fusion_ocr_wq);
7450 INIT_WORK(&instance->work_init, process_fw_state_change_wq);
7454 * megasas_probe_one - PCI hotplug entry point
7455 * @pdev: PCI device structure
7456 * @id: PCI ids of supported hotplugged adapter
7458 static int megasas_probe_one(struct pci_dev *pdev,
7459 const struct pci_device_id *id)
7462 struct Scsi_Host *host;
7463 struct megasas_instance *instance;
7466 switch (pdev->device) {
7467 case PCI_DEVICE_ID_LSI_AERO_10E0:
7468 case PCI_DEVICE_ID_LSI_AERO_10E3:
7469 case PCI_DEVICE_ID_LSI_AERO_10E4:
7470 case PCI_DEVICE_ID_LSI_AERO_10E7:
7471 dev_err(&pdev->dev, "Adapter is in non secure mode\n");
7473 case PCI_DEVICE_ID_LSI_AERO_10E1:
7474 case PCI_DEVICE_ID_LSI_AERO_10E5:
7475 dev_info(&pdev->dev, "Adapter is in configurable secure mode\n");
7479 /* Reset MSI-X in the kdump kernel */
7480 if (reset_devices) {
7481 pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX);
7483 pci_read_config_word(pdev, pos + PCI_MSIX_FLAGS,
7485 if (control & PCI_MSIX_FLAGS_ENABLE) {
7486 dev_info(&pdev->dev, "resetting MSI-X\n");
7487 pci_write_config_word(pdev,
7488 pos + PCI_MSIX_FLAGS,
7490 ~PCI_MSIX_FLAGS_ENABLE);
7496 * PCI prepping: enable device set bus mastering and dma mask
7498 rval = pci_enable_device_mem(pdev);
7504 pci_set_master(pdev);
7506 host = scsi_host_alloc(&megasas_template,
7507 sizeof(struct megasas_instance));
7510 dev_printk(KERN_DEBUG, &pdev->dev, "scsi_host_alloc failed\n");
7511 goto fail_alloc_instance;
7514 instance = (struct megasas_instance *)host->hostdata;
7515 memset(instance, 0, sizeof(*instance));
7516 atomic_set(&instance->fw_reset_no_pci_access, 0);
7519 * Initialize PCI related and misc parameters
7521 instance->pdev = pdev;
7522 instance->host = host;
7523 instance->unique_id = pci_dev_id(pdev);
7524 instance->init_id = MEGASAS_DEFAULT_INIT_ID;
7526 megasas_set_adapter_type(instance);
7529 * Initialize MFI Firmware
7531 if (megasas_init_fw(instance))
7534 if (instance->requestorId) {
7535 if (instance->PlasmaFW111) {
7536 instance->vf_affiliation_111 =
7537 dma_alloc_coherent(&pdev->dev,
7538 sizeof(struct MR_LD_VF_AFFILIATION_111),
7539 &instance->vf_affiliation_111_h,
7541 if (!instance->vf_affiliation_111)
7542 dev_warn(&pdev->dev, "Can't allocate "
7543 "memory for VF affiliation buffer\n");
7545 instance->vf_affiliation =
7546 dma_alloc_coherent(&pdev->dev,
7547 (MAX_LOGICAL_DRIVES + 1) *
7548 sizeof(struct MR_LD_VF_AFFILIATION),
7549 &instance->vf_affiliation_h,
7551 if (!instance->vf_affiliation)
7552 dev_warn(&pdev->dev, "Can't allocate "
7553 "memory for VF affiliation buffer\n");
7558 * Store instance in PCI softstate
7560 pci_set_drvdata(pdev, instance);
7563 * Add this controller to megasas_mgmt_info structure so that it
7564 * can be exported to management applications
7566 megasas_mgmt_info.count++;
7567 megasas_mgmt_info.instance[megasas_mgmt_info.max_index] = instance;
7568 megasas_mgmt_info.max_index++;
7571 * Register with SCSI mid-layer
7573 if (megasas_io_attach(instance))
7574 goto fail_io_attach;
7576 instance->unload = 0;
7578 * Trigger SCSI to scan our drives
7580 if (!instance->enable_fw_dev_list ||
7581 (instance->host_device_list_buf->count > 0))
7582 scsi_scan_host(host);
7585 * Initiate AEN (Asynchronous Event Notification)
7587 if (megasas_start_aen(instance)) {
7588 dev_printk(KERN_DEBUG, &pdev->dev, "start aen failed\n");
7589 goto fail_start_aen;
7592 megasas_setup_debugfs(instance);
7594 /* Get current SR-IOV LD/VF affiliation */
7595 if (instance->requestorId)
7596 megasas_get_ld_vf_affiliation(instance, 1);
7601 instance->unload = 1;
7602 scsi_remove_host(instance->host);
7604 megasas_mgmt_info.count--;
7605 megasas_mgmt_info.max_index--;
7606 megasas_mgmt_info.instance[megasas_mgmt_info.max_index] = NULL;
7608 if (instance->requestorId && !instance->skip_heartbeat_timer_del)
7609 del_timer_sync(&instance->sriov_heartbeat_timer);
7611 instance->instancet->disable_intr(instance);
7612 megasas_destroy_irqs(instance);
7614 if (instance->adapter_type != MFI_SERIES)
7615 megasas_release_fusion(instance);
7617 megasas_release_mfi(instance);
7619 if (instance->msix_vectors)
7620 pci_free_irq_vectors(instance->pdev);
7621 instance->msix_vectors = 0;
7623 if (instance->fw_crash_state != UNAVAILABLE)
7624 megasas_free_host_crash_buffer(instance);
7626 if (instance->adapter_type != MFI_SERIES)
7627 megasas_fusion_stop_watchdog(instance);
7629 scsi_host_put(host);
7630 fail_alloc_instance:
7631 pci_disable_device(pdev);
7637 * megasas_flush_cache - Requests FW to flush all its caches
7638 * @instance: Adapter soft state
7640 static void megasas_flush_cache(struct megasas_instance *instance)
7642 struct megasas_cmd *cmd;
7643 struct megasas_dcmd_frame *dcmd;
7645 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR)
7648 cmd = megasas_get_cmd(instance);
7653 dcmd = &cmd->frame->dcmd;
7655 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
7657 dcmd->cmd = MFI_CMD_DCMD;
7658 dcmd->cmd_status = 0x0;
7659 dcmd->sge_count = 0;
7660 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_NONE);
7663 dcmd->data_xfer_len = 0;
7664 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_CACHE_FLUSH);
7665 dcmd->mbox.b[0] = MR_FLUSH_CTRL_CACHE | MR_FLUSH_DISK_CACHE;
7667 if (megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS)
7669 dev_err(&instance->pdev->dev,
7670 "return from %s %d\n", __func__, __LINE__);
7674 megasas_return_cmd(instance, cmd);
7678 * megasas_shutdown_controller - Instructs FW to shutdown the controller
7679 * @instance: Adapter soft state
7680 * @opcode: Shutdown/Hibernate
7682 static void megasas_shutdown_controller(struct megasas_instance *instance,
7685 struct megasas_cmd *cmd;
7686 struct megasas_dcmd_frame *dcmd;
7688 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR)
7691 cmd = megasas_get_cmd(instance);
7696 if (instance->aen_cmd)
7697 megasas_issue_blocked_abort_cmd(instance,
7698 instance->aen_cmd, MFI_IO_TIMEOUT_SECS);
7699 if (instance->map_update_cmd)
7700 megasas_issue_blocked_abort_cmd(instance,
7701 instance->map_update_cmd, MFI_IO_TIMEOUT_SECS);
7702 if (instance->jbod_seq_cmd)
7703 megasas_issue_blocked_abort_cmd(instance,
7704 instance->jbod_seq_cmd, MFI_IO_TIMEOUT_SECS);
7706 dcmd = &cmd->frame->dcmd;
7708 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
7710 dcmd->cmd = MFI_CMD_DCMD;
7711 dcmd->cmd_status = 0x0;
7712 dcmd->sge_count = 0;
7713 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_NONE);
7716 dcmd->data_xfer_len = 0;
7717 dcmd->opcode = cpu_to_le32(opcode);
7719 if (megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS)
7721 dev_err(&instance->pdev->dev,
7722 "return from %s %d\n", __func__, __LINE__);
7726 megasas_return_cmd(instance, cmd);
7730 * megasas_suspend - driver suspend entry point
7731 * @dev: Device structure
7733 static int __maybe_unused
7734 megasas_suspend(struct device *dev)
7736 struct megasas_instance *instance;
7738 instance = dev_get_drvdata(dev);
7743 instance->unload = 1;
7745 dev_info(dev, "%s is called\n", __func__);
7747 /* Shutdown SR-IOV heartbeat timer */
7748 if (instance->requestorId && !instance->skip_heartbeat_timer_del)
7749 del_timer_sync(&instance->sriov_heartbeat_timer);
7751 /* Stop the FW fault detection watchdog */
7752 if (instance->adapter_type != MFI_SERIES)
7753 megasas_fusion_stop_watchdog(instance);
7755 megasas_flush_cache(instance);
7756 megasas_shutdown_controller(instance, MR_DCMD_HIBERNATE_SHUTDOWN);
7758 /* cancel the delayed work if this work still in queue */
7759 if (instance->ev != NULL) {
7760 struct megasas_aen_event *ev = instance->ev;
7761 cancel_delayed_work_sync(&ev->hotplug_work);
7762 instance->ev = NULL;
7765 tasklet_kill(&instance->isr_tasklet);
7767 pci_set_drvdata(instance->pdev, instance);
7768 instance->instancet->disable_intr(instance);
7770 megasas_destroy_irqs(instance);
7772 if (instance->msix_vectors)
7773 pci_free_irq_vectors(instance->pdev);
7779 * megasas_resume- driver resume entry point
7780 * @dev: Device structure
7782 static int __maybe_unused
7783 megasas_resume(struct device *dev)
7786 struct Scsi_Host *host;
7787 struct megasas_instance *instance;
7790 instance = dev_get_drvdata(dev);
7795 host = instance->host;
7797 dev_info(dev, "%s is called\n", __func__);
7800 * We expect the FW state to be READY
7803 if (megasas_transition_to_ready(instance, 0)) {
7804 dev_info(&instance->pdev->dev,
7805 "Failed to transition controller to ready from %s!\n",
7807 if (instance->adapter_type != MFI_SERIES) {
7809 instance->instancet->read_fw_status_reg(instance);
7810 if (!(status_reg & MFI_RESET_ADAPTER) ||
7811 ((megasas_adp_reset_wait_for_ready
7812 (instance, true, 0)) == FAILED))
7813 goto fail_ready_state;
7815 atomic_set(&instance->fw_reset_no_pci_access, 1);
7816 instance->instancet->adp_reset
7817 (instance, instance->reg_set);
7818 atomic_set(&instance->fw_reset_no_pci_access, 0);
7820 /* waiting for about 30 seconds before retry */
7823 if (megasas_transition_to_ready(instance, 0))
7824 goto fail_ready_state;
7827 dev_info(&instance->pdev->dev,
7828 "FW restarted successfully from %s!\n",
7831 if (megasas_set_dma_mask(instance))
7832 goto fail_set_dma_mask;
7835 * Initialize MFI Firmware
7838 atomic_set(&instance->fw_outstanding, 0);
7839 atomic_set(&instance->ldio_outstanding, 0);
7841 /* Now re-enable MSI-X */
7842 if (instance->msix_vectors)
7843 megasas_alloc_irq_vectors(instance);
7845 if (!instance->msix_vectors) {
7846 rval = pci_alloc_irq_vectors(instance->pdev, 1, 1,
7849 goto fail_reenable_msix;
7852 megasas_setup_reply_map(instance);
7854 if (instance->adapter_type != MFI_SERIES) {
7855 megasas_reset_reply_desc(instance);
7856 if (megasas_ioc_init_fusion(instance)) {
7857 megasas_free_cmds(instance);
7858 megasas_free_cmds_fusion(instance);
7861 if (!megasas_get_map_info(instance))
7862 megasas_sync_map_info(instance);
7864 *instance->producer = 0;
7865 *instance->consumer = 0;
7866 if (megasas_issue_init_mfi(instance))
7870 if (megasas_get_ctrl_info(instance) != DCMD_SUCCESS)
7873 tasklet_init(&instance->isr_tasklet, instance->instancet->tasklet,
7874 (unsigned long)instance);
7876 if (instance->msix_vectors ?
7877 megasas_setup_irqs_msix(instance, 0) :
7878 megasas_setup_irqs_ioapic(instance))
7881 if (instance->adapter_type != MFI_SERIES)
7882 megasas_setup_irq_poll(instance);
7884 /* Re-launch SR-IOV heartbeat timer */
7885 if (instance->requestorId) {
7886 if (!megasas_sriov_start_heartbeat(instance, 0))
7887 megasas_start_timer(instance);
7889 instance->skip_heartbeat_timer_del = 1;
7894 instance->instancet->enable_intr(instance);
7895 megasas_setup_jbod_map(instance);
7896 instance->unload = 0;
7899 * Initiate AEN (Asynchronous Event Notification)
7901 if (megasas_start_aen(instance))
7902 dev_err(&instance->pdev->dev, "Start AEN failed\n");
7904 /* Re-launch FW fault watchdog */
7905 if (instance->adapter_type != MFI_SERIES)
7906 if (megasas_fusion_start_watchdog(instance) != SUCCESS)
7907 goto fail_start_watchdog;
7911 fail_start_watchdog:
7912 if (instance->requestorId && !instance->skip_heartbeat_timer_del)
7913 del_timer_sync(&instance->sriov_heartbeat_timer);
7915 megasas_free_ctrl_dma_buffers(instance);
7916 megasas_free_ctrl_mem(instance);
7917 scsi_host_put(host);
7927 megasas_wait_for_adapter_operational(struct megasas_instance *instance)
7929 int wait_time = MEGASAS_RESET_WAIT_TIME * 2;
7933 for (i = 0; i < wait_time; i++) {
7934 adp_state = atomic_read(&instance->adprecovery);
7935 if ((adp_state == MEGASAS_HBA_OPERATIONAL) ||
7936 (adp_state == MEGASAS_HW_CRITICAL_ERROR))
7939 if (!(i % MEGASAS_RESET_NOTICE_INTERVAL))
7940 dev_notice(&instance->pdev->dev, "waiting for controller reset to finish\n");
7945 if (adp_state != MEGASAS_HBA_OPERATIONAL) {
7946 dev_info(&instance->pdev->dev,
7947 "%s HBA failed to become operational, adp_state %d\n",
7948 __func__, adp_state);
7956 * megasas_detach_one - PCI hot"un"plug entry point
7957 * @pdev: PCI device structure
7959 static void megasas_detach_one(struct pci_dev *pdev)
7962 struct Scsi_Host *host;
7963 struct megasas_instance *instance;
7964 struct fusion_context *fusion;
7965 size_t pd_seq_map_sz;
7967 instance = pci_get_drvdata(pdev);
7972 host = instance->host;
7973 fusion = instance->ctrl_context;
7975 /* Shutdown SR-IOV heartbeat timer */
7976 if (instance->requestorId && !instance->skip_heartbeat_timer_del)
7977 del_timer_sync(&instance->sriov_heartbeat_timer);
7979 /* Stop the FW fault detection watchdog */
7980 if (instance->adapter_type != MFI_SERIES)
7981 megasas_fusion_stop_watchdog(instance);
7983 if (instance->fw_crash_state != UNAVAILABLE)
7984 megasas_free_host_crash_buffer(instance);
7985 scsi_remove_host(instance->host);
7986 instance->unload = 1;
7988 if (megasas_wait_for_adapter_operational(instance))
7989 goto skip_firing_dcmds;
7991 megasas_flush_cache(instance);
7992 megasas_shutdown_controller(instance, MR_DCMD_CTRL_SHUTDOWN);
7995 /* cancel the delayed work if this work still in queue*/
7996 if (instance->ev != NULL) {
7997 struct megasas_aen_event *ev = instance->ev;
7998 cancel_delayed_work_sync(&ev->hotplug_work);
7999 instance->ev = NULL;
8002 /* cancel all wait events */
8003 wake_up_all(&instance->int_cmd_wait_q);
8005 tasklet_kill(&instance->isr_tasklet);
8008 * Take the instance off the instance array. Note that we will not
8009 * decrement the max_index. We let this array be sparse array
8011 for (i = 0; i < megasas_mgmt_info.max_index; i++) {
8012 if (megasas_mgmt_info.instance[i] == instance) {
8013 megasas_mgmt_info.count--;
8014 megasas_mgmt_info.instance[i] = NULL;
8020 instance->instancet->disable_intr(instance);
8022 megasas_destroy_irqs(instance);
8024 if (instance->msix_vectors)
8025 pci_free_irq_vectors(instance->pdev);
8027 if (instance->adapter_type >= VENTURA_SERIES) {
8028 for (i = 0; i < MAX_LOGICAL_DRIVES_EXT; ++i)
8029 kfree(fusion->stream_detect_by_ld[i]);
8030 kfree(fusion->stream_detect_by_ld);
8031 fusion->stream_detect_by_ld = NULL;
8035 if (instance->adapter_type != MFI_SERIES) {
8036 megasas_release_fusion(instance);
8038 struct_size_t(struct MR_PD_CFG_SEQ_NUM_SYNC,
8039 seq, MAX_PHYSICAL_DEVICES);
8040 for (i = 0; i < 2 ; i++) {
8041 if (fusion->ld_map[i])
8042 dma_free_coherent(&instance->pdev->dev,
8045 fusion->ld_map_phys[i]);
8046 if (fusion->ld_drv_map[i]) {
8047 if (is_vmalloc_addr(fusion->ld_drv_map[i]))
8048 vfree(fusion->ld_drv_map[i]);
8050 free_pages((ulong)fusion->ld_drv_map[i],
8051 fusion->drv_map_pages);
8054 if (fusion->pd_seq_sync[i])
8055 dma_free_coherent(&instance->pdev->dev,
8057 fusion->pd_seq_sync[i],
8058 fusion->pd_seq_phys[i]);
8061 megasas_release_mfi(instance);
8064 if (instance->vf_affiliation)
8065 dma_free_coherent(&pdev->dev, (MAX_LOGICAL_DRIVES + 1) *
8066 sizeof(struct MR_LD_VF_AFFILIATION),
8067 instance->vf_affiliation,
8068 instance->vf_affiliation_h);
8070 if (instance->vf_affiliation_111)
8071 dma_free_coherent(&pdev->dev,
8072 sizeof(struct MR_LD_VF_AFFILIATION_111),
8073 instance->vf_affiliation_111,
8074 instance->vf_affiliation_111_h);
8076 if (instance->hb_host_mem)
8077 dma_free_coherent(&pdev->dev, sizeof(struct MR_CTRL_HB_HOST_MEM),
8078 instance->hb_host_mem,
8079 instance->hb_host_mem_h);
8081 megasas_free_ctrl_dma_buffers(instance);
8083 megasas_free_ctrl_mem(instance);
8085 megasas_destroy_debugfs(instance);
8087 scsi_host_put(host);
8089 pci_disable_device(pdev);
8093 * megasas_shutdown - Shutdown entry point
8094 * @pdev: PCI device structure
8096 static void megasas_shutdown(struct pci_dev *pdev)
8098 struct megasas_instance *instance = pci_get_drvdata(pdev);
8103 instance->unload = 1;
8105 if (megasas_wait_for_adapter_operational(instance))
8106 goto skip_firing_dcmds;
8108 megasas_flush_cache(instance);
8109 megasas_shutdown_controller(instance, MR_DCMD_CTRL_SHUTDOWN);
8112 instance->instancet->disable_intr(instance);
8113 megasas_destroy_irqs(instance);
8115 if (instance->msix_vectors)
8116 pci_free_irq_vectors(instance->pdev);
8120 * megasas_mgmt_open - char node "open" entry point
8121 * @inode: char node inode
8122 * @filep: char node file
8124 static int megasas_mgmt_open(struct inode *inode, struct file *filep)
8127 * Allow only those users with admin rights
8129 if (!capable(CAP_SYS_ADMIN))
8136 * megasas_mgmt_fasync - Async notifier registration from applications
8137 * @fd: char node file descriptor number
8138 * @filep: char node file
8139 * @mode: notifier on/off
8141 * This function adds the calling process to a driver global queue. When an
8142 * event occurs, SIGIO will be sent to all processes in this queue.
8144 static int megasas_mgmt_fasync(int fd, struct file *filep, int mode)
8148 mutex_lock(&megasas_async_queue_mutex);
8150 rc = fasync_helper(fd, filep, mode, &megasas_async_queue);
8152 mutex_unlock(&megasas_async_queue_mutex);
8155 /* For sanity check when we get ioctl */
8156 filep->private_data = filep;
8160 printk(KERN_DEBUG "megasas: fasync_helper failed [%d]\n", rc);
8166 * megasas_mgmt_poll - char node "poll" entry point
8167 * @filep: char node file
8168 * @wait: Events to poll for
8170 static __poll_t megasas_mgmt_poll(struct file *file, poll_table *wait)
8173 unsigned long flags;
8175 poll_wait(file, &megasas_poll_wait, wait);
8176 spin_lock_irqsave(&poll_aen_lock, flags);
8177 if (megasas_poll_wait_aen)
8178 mask = (EPOLLIN | EPOLLRDNORM);
8181 megasas_poll_wait_aen = 0;
8182 spin_unlock_irqrestore(&poll_aen_lock, flags);
8187 * megasas_set_crash_dump_params_ioctl:
8188 * Send CRASH_DUMP_MODE DCMD to all controllers
8189 * @cmd: MFI command frame
8192 static int megasas_set_crash_dump_params_ioctl(struct megasas_cmd *cmd)
8194 struct megasas_instance *local_instance;
8198 crash_support = cmd->frame->dcmd.mbox.w[0];
8200 for (i = 0; i < megasas_mgmt_info.max_index; i++) {
8201 local_instance = megasas_mgmt_info.instance[i];
8202 if (local_instance && local_instance->crash_dump_drv_support) {
8203 if ((atomic_read(&local_instance->adprecovery) ==
8204 MEGASAS_HBA_OPERATIONAL) &&
8205 !megasas_set_crash_dump_params(local_instance,
8207 local_instance->crash_dump_app_support =
8209 dev_info(&local_instance->pdev->dev,
8210 "Application firmware crash "
8211 "dump mode set success\n");
8214 dev_info(&local_instance->pdev->dev,
8215 "Application firmware crash "
8216 "dump mode set failed\n");
8225 * megasas_mgmt_fw_ioctl - Issues management ioctls to FW
8226 * @instance: Adapter soft state
8227 * @user_ioc: User's ioctl packet
8228 * @ioc: ioctl packet
8231 megasas_mgmt_fw_ioctl(struct megasas_instance *instance,
8232 struct megasas_iocpacket __user * user_ioc,
8233 struct megasas_iocpacket *ioc)
8235 struct megasas_sge64 *kern_sge64 = NULL;
8236 struct megasas_sge32 *kern_sge32 = NULL;
8237 struct megasas_cmd *cmd;
8238 void *kbuff_arr[MAX_IOCTL_SGE];
8239 dma_addr_t buf_handle = 0;
8242 dma_addr_t sense_handle;
8245 int ret = DCMD_SUCCESS;
8247 memset(kbuff_arr, 0, sizeof(kbuff_arr));
8249 if (ioc->sge_count > MAX_IOCTL_SGE) {
8250 dev_printk(KERN_DEBUG, &instance->pdev->dev, "SGE count [%d] > max limit [%d]\n",
8251 ioc->sge_count, MAX_IOCTL_SGE);
8255 if ((ioc->frame.hdr.cmd >= MFI_CMD_OP_COUNT) ||
8256 ((ioc->frame.hdr.cmd == MFI_CMD_NVME) &&
8257 !instance->support_nvme_passthru) ||
8258 ((ioc->frame.hdr.cmd == MFI_CMD_TOOLBOX) &&
8259 !instance->support_pci_lane_margining)) {
8260 dev_err(&instance->pdev->dev,
8261 "Received invalid ioctl command 0x%x\n",
8262 ioc->frame.hdr.cmd);
8266 cmd = megasas_get_cmd(instance);
8268 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to get a cmd packet\n");
8273 * User's IOCTL packet has 2 frames (maximum). Copy those two
8274 * frames into our cmd's frames. cmd->frame's context will get
8275 * overwritten when we copy from user's frames. So set that value
8278 memcpy(cmd->frame, ioc->frame.raw, 2 * MEGAMFI_FRAME_SIZE);
8279 cmd->frame->hdr.context = cpu_to_le32(cmd->index);
8280 cmd->frame->hdr.pad_0 = 0;
8282 cmd->frame->hdr.flags &= (~MFI_FRAME_IEEE);
8284 if (instance->consistent_mask_64bit)
8285 cmd->frame->hdr.flags |= cpu_to_le16((MFI_FRAME_SGL64 |
8286 MFI_FRAME_SENSE64));
8288 cmd->frame->hdr.flags &= cpu_to_le16(~(MFI_FRAME_SGL64 |
8289 MFI_FRAME_SENSE64));
8291 if (cmd->frame->hdr.cmd == MFI_CMD_DCMD)
8292 opcode = le32_to_cpu(cmd->frame->dcmd.opcode);
8294 if (opcode == MR_DCMD_CTRL_SHUTDOWN) {
8295 mutex_lock(&instance->reset_mutex);
8296 if (megasas_get_ctrl_info(instance) != DCMD_SUCCESS) {
8297 megasas_return_cmd(instance, cmd);
8298 mutex_unlock(&instance->reset_mutex);
8301 mutex_unlock(&instance->reset_mutex);
8304 if (opcode == MR_DRIVER_SET_APP_CRASHDUMP_MODE) {
8305 error = megasas_set_crash_dump_params_ioctl(cmd);
8306 megasas_return_cmd(instance, cmd);
8311 * The management interface between applications and the fw uses
8312 * MFI frames. E.g, RAID configuration changes, LD property changes
8313 * etc are accomplishes through different kinds of MFI frames. The
8314 * driver needs to care only about substituting user buffers with
8315 * kernel buffers in SGLs. The location of SGL is embedded in the
8316 * struct iocpacket itself.
8318 if (instance->consistent_mask_64bit)
8319 kern_sge64 = (struct megasas_sge64 *)
8320 ((unsigned long)cmd->frame + ioc->sgl_off);
8322 kern_sge32 = (struct megasas_sge32 *)
8323 ((unsigned long)cmd->frame + ioc->sgl_off);
8326 * For each user buffer, create a mirror buffer and copy in
8328 for (i = 0; i < ioc->sge_count; i++) {
8329 if (!ioc->sgl[i].iov_len)
8332 kbuff_arr[i] = dma_alloc_coherent(&instance->pdev->dev,
8333 ioc->sgl[i].iov_len,
8334 &buf_handle, GFP_KERNEL);
8335 if (!kbuff_arr[i]) {
8336 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to alloc "
8337 "kernel SGL buffer for IOCTL\n");
8343 * We don't change the dma_coherent_mask, so
8344 * dma_alloc_coherent only returns 32bit addresses
8346 if (instance->consistent_mask_64bit) {
8347 kern_sge64[i].phys_addr = cpu_to_le64(buf_handle);
8348 kern_sge64[i].length = cpu_to_le32(ioc->sgl[i].iov_len);
8350 kern_sge32[i].phys_addr = cpu_to_le32(buf_handle);
8351 kern_sge32[i].length = cpu_to_le32(ioc->sgl[i].iov_len);
8355 * We created a kernel buffer corresponding to the
8356 * user buffer. Now copy in from the user buffer
8358 if (copy_from_user(kbuff_arr[i], ioc->sgl[i].iov_base,
8359 (u32) (ioc->sgl[i].iov_len))) {
8365 if (ioc->sense_len) {
8366 /* make sure the pointer is part of the frame */
8367 if (ioc->sense_off >
8368 (sizeof(union megasas_frame) - sizeof(__le64))) {
8373 sense = dma_alloc_coherent(&instance->pdev->dev, ioc->sense_len,
8374 &sense_handle, GFP_KERNEL);
8380 /* always store 64 bits regardless of addressing */
8381 sense_ptr = (void *)cmd->frame + ioc->sense_off;
8382 put_unaligned_le64(sense_handle, sense_ptr);
8386 * Set the sync_cmd flag so that the ISR knows not to complete this
8387 * cmd to the SCSI mid-layer
8391 ret = megasas_issue_blocked_cmd(instance, cmd, 0);
8396 dev_err(&instance->pdev->dev,
8397 "return -EBUSY from %s %d cmd 0x%x opcode 0x%x cmd->cmd_status_drv 0x%x\n",
8398 __func__, __LINE__, cmd->frame->hdr.cmd, opcode,
8399 cmd->cmd_status_drv);
8406 if (instance->unload == 1) {
8407 dev_info(&instance->pdev->dev, "Driver unload is in progress "
8408 "don't submit data to application\n");
8412 * copy out the kernel buffers to user buffers
8414 for (i = 0; i < ioc->sge_count; i++) {
8415 if (copy_to_user(ioc->sgl[i].iov_base, kbuff_arr[i],
8416 ioc->sgl[i].iov_len)) {
8423 * copy out the sense
8425 if (ioc->sense_len) {
8428 * sense_ptr points to the location that has the user
8429 * sense buffer address
8431 sense_ptr = (void *)ioc->frame.raw + ioc->sense_off;
8432 if (in_compat_syscall())
8433 uptr = compat_ptr(get_unaligned((compat_uptr_t *)
8436 uptr = get_unaligned((void __user **)sense_ptr);
8438 if (copy_to_user(uptr, sense, ioc->sense_len)) {
8439 dev_err(&instance->pdev->dev, "Failed to copy out to user "
8447 * copy the status codes returned by the fw
8449 if (copy_to_user(&user_ioc->frame.hdr.cmd_status,
8450 &cmd->frame->hdr.cmd_status, sizeof(u8))) {
8451 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Error copying out cmd_status\n");
8457 dma_free_coherent(&instance->pdev->dev, ioc->sense_len,
8458 sense, sense_handle);
8461 for (i = 0; i < ioc->sge_count; i++) {
8463 if (instance->consistent_mask_64bit)
8464 dma_free_coherent(&instance->pdev->dev,
8465 le32_to_cpu(kern_sge64[i].length),
8467 le64_to_cpu(kern_sge64[i].phys_addr));
8469 dma_free_coherent(&instance->pdev->dev,
8470 le32_to_cpu(kern_sge32[i].length),
8472 le32_to_cpu(kern_sge32[i].phys_addr));
8473 kbuff_arr[i] = NULL;
8477 megasas_return_cmd(instance, cmd);
8481 static struct megasas_iocpacket *
8482 megasas_compat_iocpacket_get_user(void __user *arg)
8484 struct megasas_iocpacket *ioc;
8485 struct compat_megasas_iocpacket __user *cioc = arg;
8490 ioc = kzalloc(sizeof(*ioc), GFP_KERNEL);
8492 return ERR_PTR(-ENOMEM);
8493 size = offsetof(struct megasas_iocpacket, frame) + sizeof(ioc->frame);
8494 if (copy_from_user(ioc, arg, size))
8497 for (i = 0; i < MAX_IOCTL_SGE; i++) {
8498 compat_uptr_t iov_base;
8500 if (get_user(iov_base, &cioc->sgl[i].iov_base) ||
8501 get_user(ioc->sgl[i].iov_len, &cioc->sgl[i].iov_len))
8504 ioc->sgl[i].iov_base = compat_ptr(iov_base);
8510 return ERR_PTR(err);
8513 static int megasas_mgmt_ioctl_fw(struct file *file, unsigned long arg)
8515 struct megasas_iocpacket __user *user_ioc =
8516 (struct megasas_iocpacket __user *)arg;
8517 struct megasas_iocpacket *ioc;
8518 struct megasas_instance *instance;
8521 if (in_compat_syscall())
8522 ioc = megasas_compat_iocpacket_get_user(user_ioc);
8524 ioc = memdup_user(user_ioc, sizeof(struct megasas_iocpacket));
8527 return PTR_ERR(ioc);
8529 instance = megasas_lookup_instance(ioc->host_no);
8535 /* Block ioctls in VF mode */
8536 if (instance->requestorId && !allow_vf_ioctls) {
8541 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) {
8542 dev_err(&instance->pdev->dev, "Controller in crit error\n");
8547 if (instance->unload == 1) {
8552 if (down_interruptible(&instance->ioctl_sem)) {
8553 error = -ERESTARTSYS;
8557 if (megasas_wait_for_adapter_operational(instance)) {
8562 error = megasas_mgmt_fw_ioctl(instance, user_ioc, ioc);
8564 up(&instance->ioctl_sem);
8571 static int megasas_mgmt_ioctl_aen(struct file *file, unsigned long arg)
8573 struct megasas_instance *instance;
8574 struct megasas_aen aen;
8577 if (file->private_data != file) {
8578 printk(KERN_DEBUG "megasas: fasync_helper was not "
8583 if (copy_from_user(&aen, (void __user *)arg, sizeof(aen)))
8586 instance = megasas_lookup_instance(aen.host_no);
8591 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) {
8595 if (instance->unload == 1) {
8599 if (megasas_wait_for_adapter_operational(instance))
8602 mutex_lock(&instance->reset_mutex);
8603 error = megasas_register_aen(instance, aen.seq_num,
8604 aen.class_locale_word);
8605 mutex_unlock(&instance->reset_mutex);
8610 * megasas_mgmt_ioctl - char node ioctl entry point
8611 * @file: char device file pointer
8612 * @cmd: ioctl command
8613 * @arg: ioctl command arguments address
8616 megasas_mgmt_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
8619 case MEGASAS_IOC_FIRMWARE:
8620 return megasas_mgmt_ioctl_fw(file, arg);
8622 case MEGASAS_IOC_GET_AEN:
8623 return megasas_mgmt_ioctl_aen(file, arg);
8629 #ifdef CONFIG_COMPAT
8631 megasas_mgmt_compat_ioctl(struct file *file, unsigned int cmd,
8635 case MEGASAS_IOC_FIRMWARE32:
8636 return megasas_mgmt_ioctl_fw(file, arg);
8637 case MEGASAS_IOC_GET_AEN:
8638 return megasas_mgmt_ioctl_aen(file, arg);
8646 * File operations structure for management interface
8648 static const struct file_operations megasas_mgmt_fops = {
8649 .owner = THIS_MODULE,
8650 .open = megasas_mgmt_open,
8651 .fasync = megasas_mgmt_fasync,
8652 .unlocked_ioctl = megasas_mgmt_ioctl,
8653 .poll = megasas_mgmt_poll,
8654 #ifdef CONFIG_COMPAT
8655 .compat_ioctl = megasas_mgmt_compat_ioctl,
8657 .llseek = noop_llseek,
8660 static SIMPLE_DEV_PM_OPS(megasas_pm_ops, megasas_suspend, megasas_resume);
8663 * PCI hotplug support registration structure
8665 static struct pci_driver megasas_pci_driver = {
8667 .name = "megaraid_sas",
8668 .id_table = megasas_pci_table,
8669 .probe = megasas_probe_one,
8670 .remove = megasas_detach_one,
8671 .driver.pm = &megasas_pm_ops,
8672 .shutdown = megasas_shutdown,
8676 * Sysfs driver attributes
8678 static ssize_t version_show(struct device_driver *dd, char *buf)
8680 return snprintf(buf, strlen(MEGASAS_VERSION) + 2, "%s\n",
8683 static DRIVER_ATTR_RO(version);
8685 static ssize_t release_date_show(struct device_driver *dd, char *buf)
8687 return snprintf(buf, strlen(MEGASAS_RELDATE) + 2, "%s\n",
8690 static DRIVER_ATTR_RO(release_date);
8692 static ssize_t support_poll_for_event_show(struct device_driver *dd, char *buf)
8694 return sprintf(buf, "%u\n", support_poll_for_event);
8696 static DRIVER_ATTR_RO(support_poll_for_event);
8698 static ssize_t support_device_change_show(struct device_driver *dd, char *buf)
8700 return sprintf(buf, "%u\n", support_device_change);
8702 static DRIVER_ATTR_RO(support_device_change);
8704 static ssize_t dbg_lvl_show(struct device_driver *dd, char *buf)
8706 return sprintf(buf, "%u\n", megasas_dbg_lvl);
8709 static ssize_t dbg_lvl_store(struct device_driver *dd, const char *buf,
8714 if (sscanf(buf, "%u", &megasas_dbg_lvl) < 1) {
8715 printk(KERN_ERR "megasas: could not set dbg_lvl\n");
8720 static DRIVER_ATTR_RW(dbg_lvl);
8723 support_nvme_encapsulation_show(struct device_driver *dd, char *buf)
8725 return sprintf(buf, "%u\n", support_nvme_encapsulation);
8728 static DRIVER_ATTR_RO(support_nvme_encapsulation);
8731 support_pci_lane_margining_show(struct device_driver *dd, char *buf)
8733 return sprintf(buf, "%u\n", support_pci_lane_margining);
8736 static DRIVER_ATTR_RO(support_pci_lane_margining);
8738 static inline void megasas_remove_scsi_device(struct scsi_device *sdev)
8740 sdev_printk(KERN_INFO, sdev, "SCSI device is removed\n");
8741 scsi_remove_device(sdev);
8742 scsi_device_put(sdev);
8746 * megasas_update_device_list - Update the PD and LD device list from FW
8747 * after an AEN event notification
8748 * @instance: Adapter soft state
8749 * @event_type: Indicates type of event (PD or LD event)
8751 * @return: Success or failure
8753 * Issue DCMDs to Firmware to update the internal device list in driver.
8754 * Based on the FW support, driver sends the HOST_DEVICE_LIST or combination
8755 * of PD_LIST/LD_LIST_QUERY DCMDs to get the device list.
8758 int megasas_update_device_list(struct megasas_instance *instance,
8763 if (instance->enable_fw_dev_list) {
8764 return megasas_host_device_list_query(instance, false);
8766 if (event_type & SCAN_PD_CHANNEL) {
8767 dcmd_ret = megasas_get_pd_list(instance);
8768 if (dcmd_ret != DCMD_SUCCESS)
8772 if (event_type & SCAN_VD_CHANNEL) {
8773 if (!instance->requestorId ||
8774 megasas_get_ld_vf_affiliation(instance, 0)) {
8775 return megasas_ld_list_query(instance,
8776 MR_LD_QUERY_TYPE_EXPOSED_TO_HOST);
8780 return DCMD_SUCCESS;
8784 * megasas_add_remove_devices - Add/remove devices to SCSI mid-layer
8785 * after an AEN event notification
8786 * @instance: Adapter soft state
8787 * @scan_type: Indicates type of devices (PD/LD) to add
8791 void megasas_add_remove_devices(struct megasas_instance *instance,
8797 u16 channel = 0, id = 0;
8798 struct Scsi_Host *host;
8799 struct scsi_device *sdev1;
8800 struct MR_HOST_DEVICE_LIST *targetid_list = NULL;
8801 struct MR_HOST_DEVICE_LIST_ENTRY *targetid_entry = NULL;
8803 host = instance->host;
8805 if (instance->enable_fw_dev_list) {
8806 targetid_list = instance->host_device_list_buf;
8807 for (i = 0; i < targetid_list->count; i++) {
8808 targetid_entry = &targetid_list->host_device_list[i];
8809 if (targetid_entry->flags.u.bits.is_sys_pd) {
8810 channel = le16_to_cpu(targetid_entry->target_id) /
8811 MEGASAS_MAX_DEV_PER_CHANNEL;
8812 id = le16_to_cpu(targetid_entry->target_id) %
8813 MEGASAS_MAX_DEV_PER_CHANNEL;
8815 channel = MEGASAS_MAX_PD_CHANNELS +
8816 (le16_to_cpu(targetid_entry->target_id) /
8817 MEGASAS_MAX_DEV_PER_CHANNEL);
8818 id = le16_to_cpu(targetid_entry->target_id) %
8819 MEGASAS_MAX_DEV_PER_CHANNEL;
8821 sdev1 = scsi_device_lookup(host, channel, id, 0);
8823 scsi_add_device(host, channel, id, 0);
8825 scsi_device_put(sdev1);
8830 if (scan_type & SCAN_PD_CHANNEL) {
8831 for (i = 0; i < MEGASAS_MAX_PD_CHANNELS; i++) {
8832 for (j = 0; j < MEGASAS_MAX_DEV_PER_CHANNEL; j++) {
8833 pd_index = i * MEGASAS_MAX_DEV_PER_CHANNEL + j;
8834 sdev1 = scsi_device_lookup(host, i, j, 0);
8835 if (instance->pd_list[pd_index].driveState ==
8836 MR_PD_STATE_SYSTEM) {
8838 scsi_add_device(host, i, j, 0);
8840 scsi_device_put(sdev1);
8843 megasas_remove_scsi_device(sdev1);
8849 if (scan_type & SCAN_VD_CHANNEL) {
8850 for (i = 0; i < MEGASAS_MAX_LD_CHANNELS; i++) {
8851 for (j = 0; j < MEGASAS_MAX_DEV_PER_CHANNEL; j++) {
8852 ld_index = (i * MEGASAS_MAX_DEV_PER_CHANNEL) + j;
8853 sdev1 = scsi_device_lookup(host,
8854 MEGASAS_MAX_PD_CHANNELS + i, j, 0);
8855 if (instance->ld_ids[ld_index] != 0xff) {
8857 scsi_add_device(host, MEGASAS_MAX_PD_CHANNELS + i, j, 0);
8859 scsi_device_put(sdev1);
8862 megasas_remove_scsi_device(sdev1);
8871 megasas_aen_polling(struct work_struct *work)
8873 struct megasas_aen_event *ev =
8874 container_of(work, struct megasas_aen_event, hotplug_work.work);
8875 struct megasas_instance *instance = ev->instance;
8876 union megasas_evt_class_locale class_locale;
8881 u8 dcmd_ret = DCMD_SUCCESS;
8882 struct scsi_device *sdev1;
8885 printk(KERN_ERR "invalid instance!\n");
8890 /* Don't run the event workqueue thread if OCR is running */
8891 mutex_lock(&instance->reset_mutex);
8893 instance->ev = NULL;
8894 if (instance->evt_detail) {
8895 megasas_decode_evt(instance);
8897 switch (le32_to_cpu(instance->evt_detail->code)) {
8899 case MR_EVT_PD_INSERTED:
8900 case MR_EVT_PD_REMOVED:
8901 event_type = SCAN_PD_CHANNEL;
8904 case MR_EVT_LD_OFFLINE:
8905 case MR_EVT_LD_DELETED:
8906 ld_target_id = instance->evt_detail->args.ld.target_id;
8907 sdev1 = scsi_device_lookup(instance->host,
8908 MEGASAS_MAX_PD_CHANNELS +
8909 (ld_target_id / MEGASAS_MAX_DEV_PER_CHANNEL),
8910 (ld_target_id % MEGASAS_MAX_DEV_PER_CHANNEL),
8913 megasas_remove_scsi_device(sdev1);
8915 event_type = SCAN_VD_CHANNEL;
8917 case MR_EVT_LD_CREATED:
8918 event_type = SCAN_VD_CHANNEL;
8921 case MR_EVT_CFG_CLEARED:
8922 case MR_EVT_CTRL_HOST_BUS_SCAN_REQUESTED:
8923 case MR_EVT_FOREIGN_CFG_IMPORTED:
8924 case MR_EVT_LD_STATE_CHANGE:
8925 event_type = SCAN_PD_CHANNEL | SCAN_VD_CHANNEL;
8926 dev_info(&instance->pdev->dev, "scanning for scsi%d...\n",
8927 instance->host->host_no);
8930 case MR_EVT_CTRL_PROP_CHANGED:
8931 dcmd_ret = megasas_get_ctrl_info(instance);
8932 if (dcmd_ret == DCMD_SUCCESS &&
8933 instance->snapdump_wait_time) {
8934 megasas_get_snapdump_properties(instance);
8935 dev_info(&instance->pdev->dev,
8936 "Snap dump wait time\t: %d\n",
8937 instance->snapdump_wait_time);
8945 dev_err(&instance->pdev->dev, "invalid evt_detail!\n");
8946 mutex_unlock(&instance->reset_mutex);
8952 dcmd_ret = megasas_update_device_list(instance, event_type);
8954 mutex_unlock(&instance->reset_mutex);
8956 if (event_type && dcmd_ret == DCMD_SUCCESS)
8957 megasas_add_remove_devices(instance, event_type);
8959 if (dcmd_ret == DCMD_SUCCESS)
8960 seq_num = le32_to_cpu(instance->evt_detail->seq_num) + 1;
8962 seq_num = instance->last_seq_num;
8964 /* Register AEN with FW for latest sequence number plus 1 */
8965 class_locale.members.reserved = 0;
8966 class_locale.members.locale = MR_EVT_LOCALE_ALL;
8967 class_locale.members.class = MR_EVT_CLASS_DEBUG;
8969 if (instance->aen_cmd != NULL) {
8974 mutex_lock(&instance->reset_mutex);
8975 error = megasas_register_aen(instance, seq_num,
8978 dev_err(&instance->pdev->dev,
8979 "register aen failed error %x\n", error);
8981 mutex_unlock(&instance->reset_mutex);
8986 * megasas_init - Driver load entry point
8988 static int __init megasas_init(void)
8993 * Booted in kdump kernel, minimize memory footprints by
8994 * disabling few features
8996 if (reset_devices) {
8999 dual_qdepth_disable = 1;
9004 * Announce driver version and other information
9006 pr_info("megasas: %s\n", MEGASAS_VERSION);
9008 megasas_dbg_lvl = 0;
9009 support_poll_for_event = 2;
9010 support_device_change = 1;
9011 support_nvme_encapsulation = true;
9012 support_pci_lane_margining = true;
9014 memset(&megasas_mgmt_info, 0, sizeof(megasas_mgmt_info));
9017 * Register character device node
9019 rval = register_chrdev(0, "megaraid_sas_ioctl", &megasas_mgmt_fops);
9022 printk(KERN_DEBUG "megasas: failed to open device node\n");
9026 megasas_mgmt_majorno = rval;
9028 megasas_init_debugfs();
9031 * Register ourselves as PCI hotplug module
9033 rval = pci_register_driver(&megasas_pci_driver);
9036 printk(KERN_DEBUG "megasas: PCI hotplug registration failed \n");
9040 if ((event_log_level < MFI_EVT_CLASS_DEBUG) ||
9041 (event_log_level > MFI_EVT_CLASS_DEAD)) {
9042 pr_warn("megaraid_sas: provided event log level is out of range, setting it to default 2(CLASS_CRITICAL), permissible range is: -2 to 4\n");
9043 event_log_level = MFI_EVT_CLASS_CRITICAL;
9046 rval = driver_create_file(&megasas_pci_driver.driver,
9047 &driver_attr_version);
9049 goto err_dcf_attr_ver;
9051 rval = driver_create_file(&megasas_pci_driver.driver,
9052 &driver_attr_release_date);
9054 goto err_dcf_rel_date;
9056 rval = driver_create_file(&megasas_pci_driver.driver,
9057 &driver_attr_support_poll_for_event);
9059 goto err_dcf_support_poll_for_event;
9061 rval = driver_create_file(&megasas_pci_driver.driver,
9062 &driver_attr_dbg_lvl);
9064 goto err_dcf_dbg_lvl;
9065 rval = driver_create_file(&megasas_pci_driver.driver,
9066 &driver_attr_support_device_change);
9068 goto err_dcf_support_device_change;
9070 rval = driver_create_file(&megasas_pci_driver.driver,
9071 &driver_attr_support_nvme_encapsulation);
9073 goto err_dcf_support_nvme_encapsulation;
9075 rval = driver_create_file(&megasas_pci_driver.driver,
9076 &driver_attr_support_pci_lane_margining);
9078 goto err_dcf_support_pci_lane_margining;
9082 err_dcf_support_pci_lane_margining:
9083 driver_remove_file(&megasas_pci_driver.driver,
9084 &driver_attr_support_nvme_encapsulation);
9086 err_dcf_support_nvme_encapsulation:
9087 driver_remove_file(&megasas_pci_driver.driver,
9088 &driver_attr_support_device_change);
9090 err_dcf_support_device_change:
9091 driver_remove_file(&megasas_pci_driver.driver,
9092 &driver_attr_dbg_lvl);
9094 driver_remove_file(&megasas_pci_driver.driver,
9095 &driver_attr_support_poll_for_event);
9096 err_dcf_support_poll_for_event:
9097 driver_remove_file(&megasas_pci_driver.driver,
9098 &driver_attr_release_date);
9100 driver_remove_file(&megasas_pci_driver.driver, &driver_attr_version);
9102 pci_unregister_driver(&megasas_pci_driver);
9104 megasas_exit_debugfs();
9105 unregister_chrdev(megasas_mgmt_majorno, "megaraid_sas_ioctl");
9110 * megasas_exit - Driver unload entry point
9112 static void __exit megasas_exit(void)
9114 driver_remove_file(&megasas_pci_driver.driver,
9115 &driver_attr_dbg_lvl);
9116 driver_remove_file(&megasas_pci_driver.driver,
9117 &driver_attr_support_poll_for_event);
9118 driver_remove_file(&megasas_pci_driver.driver,
9119 &driver_attr_support_device_change);
9120 driver_remove_file(&megasas_pci_driver.driver,
9121 &driver_attr_release_date);
9122 driver_remove_file(&megasas_pci_driver.driver, &driver_attr_version);
9123 driver_remove_file(&megasas_pci_driver.driver,
9124 &driver_attr_support_nvme_encapsulation);
9125 driver_remove_file(&megasas_pci_driver.driver,
9126 &driver_attr_support_pci_lane_margining);
9128 pci_unregister_driver(&megasas_pci_driver);
9129 megasas_exit_debugfs();
9130 unregister_chrdev(megasas_mgmt_majorno, "megaraid_sas_ioctl");
9133 module_init(megasas_init);
9134 module_exit(megasas_exit);