| // SPDX-License-Identifier: GPL-2.0 |
| /* |
| * driver for Microchip PQI-based storage controllers |
| * Copyright (c) 2019-2023 Microchip Technology Inc. and its subsidiaries |
| * Copyright (c) 2016-2018 Microsemi Corporation |
| * Copyright (c) 2016 PMC-Sierra, Inc. |
| * |
| * Questions/Comments/Bugfixes to storagedev@microchip.com |
| * |
| */ |
| |
| #include <linux/module.h> |
| #include <linux/kernel.h> |
| #include <linux/pci.h> |
| #include <linux/delay.h> |
| #include <linux/interrupt.h> |
| #include <linux/sched.h> |
| #include <linux/rtc.h> |
| #include <linux/bcd.h> |
| #include <linux/reboot.h> |
| #include <linux/cciss_ioctl.h> |
| #include <linux/blk-mq-pci.h> |
| #include <scsi/scsi_host.h> |
| #include <scsi/scsi_cmnd.h> |
| #include <scsi/scsi_device.h> |
| #include <scsi/scsi_eh.h> |
| #include <scsi/scsi_transport_sas.h> |
| #include <asm/unaligned.h> |
| #include "smartpqi.h" |
| #include "smartpqi_sis.h" |
| |
| #if !defined(BUILD_TIMESTAMP) |
| #define BUILD_TIMESTAMP |
| #endif |
| |
| #define DRIVER_VERSION "2.1.26-030" |
| #define DRIVER_MAJOR 2 |
| #define DRIVER_MINOR 1 |
| #define DRIVER_RELEASE 26 |
| #define DRIVER_REVISION 30 |
| |
| #define DRIVER_NAME "Microchip SmartPQI Driver (v" \ |
| DRIVER_VERSION BUILD_TIMESTAMP ")" |
| #define DRIVER_NAME_SHORT "smartpqi" |
| |
| #define PQI_EXTRA_SGL_MEMORY (12 * sizeof(struct pqi_sg_descriptor)) |
| |
| #define PQI_POST_RESET_DELAY_SECS 5 |
| #define PQI_POST_OFA_RESET_DELAY_UPON_TIMEOUT_SECS 10 |
| |
| #define PQI_NO_COMPLETION ((void *)-1) |
| |
| MODULE_AUTHOR("Microchip"); |
| MODULE_DESCRIPTION("Driver for Microchip Smart Family Controller version " |
| DRIVER_VERSION); |
| MODULE_VERSION(DRIVER_VERSION); |
| MODULE_LICENSE("GPL"); |
| |
| struct pqi_cmd_priv { |
| int this_residual; |
| }; |
| |
| static struct pqi_cmd_priv *pqi_cmd_priv(struct scsi_cmnd *cmd) |
| { |
| return scsi_cmd_priv(cmd); |
| } |
| |
| static void pqi_verify_structures(void); |
| static void pqi_take_ctrl_offline(struct pqi_ctrl_info *ctrl_info, |
| enum pqi_ctrl_shutdown_reason ctrl_shutdown_reason); |
| static void pqi_ctrl_offline_worker(struct work_struct *work); |
| static int pqi_scan_scsi_devices(struct pqi_ctrl_info *ctrl_info); |
| static void pqi_scan_start(struct Scsi_Host *shost); |
| static void pqi_start_io(struct pqi_ctrl_info *ctrl_info, |
| struct pqi_queue_group *queue_group, enum pqi_io_path path, |
| struct pqi_io_request *io_request); |
| static int pqi_submit_raid_request_synchronous(struct pqi_ctrl_info *ctrl_info, |
| struct pqi_iu_header *request, unsigned int flags, |
| struct pqi_raid_error_info *error_info); |
| static int pqi_aio_submit_io(struct pqi_ctrl_info *ctrl_info, |
| struct scsi_cmnd *scmd, u32 aio_handle, u8 *cdb, |
| unsigned int cdb_length, struct pqi_queue_group *queue_group, |
| struct pqi_encryption_info *encryption_info, bool raid_bypass, bool io_high_prio); |
| static int pqi_aio_submit_r1_write_io(struct pqi_ctrl_info *ctrl_info, |
| struct scsi_cmnd *scmd, struct pqi_queue_group *queue_group, |
| struct pqi_encryption_info *encryption_info, struct pqi_scsi_dev *device, |
| struct pqi_scsi_dev_raid_map_data *rmd); |
| static int pqi_aio_submit_r56_write_io(struct pqi_ctrl_info *ctrl_info, |
| struct scsi_cmnd *scmd, struct pqi_queue_group *queue_group, |
| struct pqi_encryption_info *encryption_info, struct pqi_scsi_dev *device, |
| struct pqi_scsi_dev_raid_map_data *rmd); |
| static void pqi_ofa_ctrl_quiesce(struct pqi_ctrl_info *ctrl_info); |
| static void pqi_ofa_ctrl_unquiesce(struct pqi_ctrl_info *ctrl_info); |
| static int pqi_ofa_ctrl_restart(struct pqi_ctrl_info *ctrl_info, unsigned int delay_secs); |
| static void pqi_ofa_setup_host_buffer(struct pqi_ctrl_info *ctrl_info); |
| static void pqi_ofa_free_host_buffer(struct pqi_ctrl_info *ctrl_info); |
| static int pqi_ofa_host_memory_update(struct pqi_ctrl_info *ctrl_info); |
| static int pqi_device_wait_for_pending_io(struct pqi_ctrl_info *ctrl_info, |
| struct pqi_scsi_dev *device, u8 lun, unsigned long timeout_msecs); |
| static void pqi_fail_all_outstanding_requests(struct pqi_ctrl_info *ctrl_info); |
| static void pqi_tmf_worker(struct work_struct *work); |
| |
| /* for flags argument to pqi_submit_raid_request_synchronous() */ |
| #define PQI_SYNC_FLAGS_INTERRUPTABLE 0x1 |
| |
| static struct scsi_transport_template *pqi_sas_transport_template; |
| |
| static atomic_t pqi_controller_count = ATOMIC_INIT(0); |
| |
| enum pqi_lockup_action { |
| NONE, |
| REBOOT, |
| PANIC |
| }; |
| |
| static enum pqi_lockup_action pqi_lockup_action = NONE; |
| |
| static struct { |
| enum pqi_lockup_action action; |
| char *name; |
| } pqi_lockup_actions[] = { |
| { |
| .action = NONE, |
| .name = "none", |
| }, |
| { |
| .action = REBOOT, |
| .name = "reboot", |
| }, |
| { |
| .action = PANIC, |
| .name = "panic", |
| }, |
| }; |
| |
| static unsigned int pqi_supported_event_types[] = { |
| PQI_EVENT_TYPE_HOTPLUG, |
| PQI_EVENT_TYPE_HARDWARE, |
| PQI_EVENT_TYPE_PHYSICAL_DEVICE, |
| PQI_EVENT_TYPE_LOGICAL_DEVICE, |
| PQI_EVENT_TYPE_OFA, |
| PQI_EVENT_TYPE_AIO_STATE_CHANGE, |
| PQI_EVENT_TYPE_AIO_CONFIG_CHANGE, |
| }; |
| |
| static int pqi_disable_device_id_wildcards; |
| module_param_named(disable_device_id_wildcards, |
| pqi_disable_device_id_wildcards, int, 0644); |
| MODULE_PARM_DESC(disable_device_id_wildcards, |
| "Disable device ID wildcards."); |
| |
| static int pqi_disable_heartbeat; |
| module_param_named(disable_heartbeat, |
| pqi_disable_heartbeat, int, 0644); |
| MODULE_PARM_DESC(disable_heartbeat, |
| "Disable heartbeat."); |
| |
| static int pqi_disable_ctrl_shutdown; |
| module_param_named(disable_ctrl_shutdown, |
| pqi_disable_ctrl_shutdown, int, 0644); |
| MODULE_PARM_DESC(disable_ctrl_shutdown, |
| "Disable controller shutdown when controller locked up."); |
| |
| static char *pqi_lockup_action_param; |
| module_param_named(lockup_action, |
| pqi_lockup_action_param, charp, 0644); |
| MODULE_PARM_DESC(lockup_action, "Action to take when controller locked up.\n" |
| "\t\tSupported: none, reboot, panic\n" |
| "\t\tDefault: none"); |
| |
| static int pqi_expose_ld_first; |
| module_param_named(expose_ld_first, |
| pqi_expose_ld_first, int, 0644); |
| MODULE_PARM_DESC(expose_ld_first, "Expose logical drives before physical drives."); |
| |
| static int pqi_hide_vsep; |
| module_param_named(hide_vsep, |
| pqi_hide_vsep, int, 0644); |
| MODULE_PARM_DESC(hide_vsep, "Hide the virtual SEP for direct attached drives."); |
| |
| static int pqi_disable_managed_interrupts; |
| module_param_named(disable_managed_interrupts, |
| pqi_disable_managed_interrupts, int, 0644); |
| MODULE_PARM_DESC(disable_managed_interrupts, |
| "Disable the kernel automatically assigning SMP affinity to IRQs."); |
| |
| static unsigned int pqi_ctrl_ready_timeout_secs; |
| module_param_named(ctrl_ready_timeout, |
| pqi_ctrl_ready_timeout_secs, uint, 0644); |
| MODULE_PARM_DESC(ctrl_ready_timeout, |
| "Timeout in seconds for driver to wait for controller ready."); |
| |
| static char *raid_levels[] = { |
| "RAID-0", |
| "RAID-4", |
| "RAID-1(1+0)", |
| "RAID-5", |
| "RAID-5+1", |
| "RAID-6", |
| "RAID-1(Triple)", |
| }; |
| |
| static char *pqi_raid_level_to_string(u8 raid_level) |
| { |
| if (raid_level < ARRAY_SIZE(raid_levels)) |
| return raid_levels[raid_level]; |
| |
| return "RAID UNKNOWN"; |
| } |
| |
| #define SA_RAID_0 0 |
| #define SA_RAID_4 1 |
| #define SA_RAID_1 2 /* also used for RAID 10 */ |
| #define SA_RAID_5 3 /* also used for RAID 50 */ |
| #define SA_RAID_51 4 |
| #define SA_RAID_6 5 /* also used for RAID 60 */ |
| #define SA_RAID_TRIPLE 6 /* also used for RAID 1+0 Triple */ |
| #define SA_RAID_MAX SA_RAID_TRIPLE |
| #define SA_RAID_UNKNOWN 0xff |
| |
| static inline void pqi_scsi_done(struct scsi_cmnd *scmd) |
| { |
| pqi_prep_for_scsi_done(scmd); |
| scsi_done(scmd); |
| } |
| |
| static inline void pqi_disable_write_same(struct scsi_device *sdev) |
| { |
| sdev->no_write_same = 1; |
| } |
| |
| static inline bool pqi_scsi3addr_equal(u8 *scsi3addr1, u8 *scsi3addr2) |
| { |
| return memcmp(scsi3addr1, scsi3addr2, 8) == 0; |
| } |
| |
| static inline bool pqi_is_logical_device(struct pqi_scsi_dev *device) |
| { |
| return !device->is_physical_device; |
| } |
| |
| static inline bool pqi_is_external_raid_addr(u8 *scsi3addr) |
| { |
| return scsi3addr[2] != 0; |
| } |
| |
| static inline bool pqi_ctrl_offline(struct pqi_ctrl_info *ctrl_info) |
| { |
| return !ctrl_info->controller_online; |
| } |
| |
| static inline void pqi_check_ctrl_health(struct pqi_ctrl_info *ctrl_info) |
| { |
| if (ctrl_info->controller_online) |
| if (!sis_is_firmware_running(ctrl_info)) |
| pqi_take_ctrl_offline(ctrl_info, PQI_FIRMWARE_KERNEL_NOT_UP); |
| } |
| |
| static inline bool pqi_is_hba_lunid(u8 *scsi3addr) |
| { |
| return pqi_scsi3addr_equal(scsi3addr, RAID_CTLR_LUNID); |
| } |
| |
| #define PQI_DRIVER_SCRATCH_PQI_MODE 0x1 |
| #define PQI_DRIVER_SCRATCH_FW_TRIAGE_SUPPORTED 0x2 |
| |
| static inline enum pqi_ctrl_mode pqi_get_ctrl_mode(struct pqi_ctrl_info *ctrl_info) |
| { |
| return sis_read_driver_scratch(ctrl_info) & PQI_DRIVER_SCRATCH_PQI_MODE ? PQI_MODE : SIS_MODE; |
| } |
| |
| static inline void pqi_save_ctrl_mode(struct pqi_ctrl_info *ctrl_info, |
| enum pqi_ctrl_mode mode) |
| { |
| u32 driver_scratch; |
| |
| driver_scratch = sis_read_driver_scratch(ctrl_info); |
| |
| if (mode == PQI_MODE) |
| driver_scratch |= PQI_DRIVER_SCRATCH_PQI_MODE; |
| else |
| driver_scratch &= ~PQI_DRIVER_SCRATCH_PQI_MODE; |
| |
| sis_write_driver_scratch(ctrl_info, driver_scratch); |
| } |
| |
| static inline bool pqi_is_fw_triage_supported(struct pqi_ctrl_info *ctrl_info) |
| { |
| return (sis_read_driver_scratch(ctrl_info) & PQI_DRIVER_SCRATCH_FW_TRIAGE_SUPPORTED) != 0; |
| } |
| |
| static inline void pqi_save_fw_triage_setting(struct pqi_ctrl_info *ctrl_info, bool is_supported) |
| { |
| u32 driver_scratch; |
| |
| driver_scratch = sis_read_driver_scratch(ctrl_info); |
| |
| if (is_supported) |
| driver_scratch |= PQI_DRIVER_SCRATCH_FW_TRIAGE_SUPPORTED; |
| else |
| driver_scratch &= ~PQI_DRIVER_SCRATCH_FW_TRIAGE_SUPPORTED; |
| |
| sis_write_driver_scratch(ctrl_info, driver_scratch); |
| } |
| |
| static inline void pqi_ctrl_block_scan(struct pqi_ctrl_info *ctrl_info) |
| { |
| ctrl_info->scan_blocked = true; |
| mutex_lock(&ctrl_info->scan_mutex); |
| } |
| |
| static inline void pqi_ctrl_unblock_scan(struct pqi_ctrl_info *ctrl_info) |
| { |
| ctrl_info->scan_blocked = false; |
| mutex_unlock(&ctrl_info->scan_mutex); |
| } |
| |
| static inline bool pqi_ctrl_scan_blocked(struct pqi_ctrl_info *ctrl_info) |
| { |
| return ctrl_info->scan_blocked; |
| } |
| |
| static inline void pqi_ctrl_block_device_reset(struct pqi_ctrl_info *ctrl_info) |
| { |
| mutex_lock(&ctrl_info->lun_reset_mutex); |
| } |
| |
| static inline void pqi_ctrl_unblock_device_reset(struct pqi_ctrl_info *ctrl_info) |
| { |
| mutex_unlock(&ctrl_info->lun_reset_mutex); |
| } |
| |
| static inline void pqi_scsi_block_requests(struct pqi_ctrl_info *ctrl_info) |
| { |
| struct Scsi_Host *shost; |
| unsigned int num_loops; |
| int msecs_sleep; |
| |
| shost = ctrl_info->scsi_host; |
| |
| scsi_block_requests(shost); |
| |
| num_loops = 0; |
| msecs_sleep = 20; |
| while (scsi_host_busy(shost)) { |
| num_loops++; |
| if (num_loops == 10) |
| msecs_sleep = 500; |
| msleep(msecs_sleep); |
| } |
| } |
| |
| static inline void pqi_scsi_unblock_requests(struct pqi_ctrl_info *ctrl_info) |
| { |
| scsi_unblock_requests(ctrl_info->scsi_host); |
| } |
| |
| static inline void pqi_ctrl_busy(struct pqi_ctrl_info *ctrl_info) |
| { |
| atomic_inc(&ctrl_info->num_busy_threads); |
| } |
| |
| static inline void pqi_ctrl_unbusy(struct pqi_ctrl_info *ctrl_info) |
| { |
| atomic_dec(&ctrl_info->num_busy_threads); |
| } |
| |
| static inline bool pqi_ctrl_blocked(struct pqi_ctrl_info *ctrl_info) |
| { |
| return ctrl_info->block_requests; |
| } |
| |
| static inline void pqi_ctrl_block_requests(struct pqi_ctrl_info *ctrl_info) |
| { |
| ctrl_info->block_requests = true; |
| } |
| |
| static inline void pqi_ctrl_unblock_requests(struct pqi_ctrl_info *ctrl_info) |
| { |
| ctrl_info->block_requests = false; |
| wake_up_all(&ctrl_info->block_requests_wait); |
| } |
| |
| static void pqi_wait_if_ctrl_blocked(struct pqi_ctrl_info *ctrl_info) |
| { |
| if (!pqi_ctrl_blocked(ctrl_info)) |
| return; |
| |
| atomic_inc(&ctrl_info->num_blocked_threads); |
| wait_event(ctrl_info->block_requests_wait, |
| !pqi_ctrl_blocked(ctrl_info)); |
| atomic_dec(&ctrl_info->num_blocked_threads); |
| } |
| |
| #define PQI_QUIESCE_WARNING_TIMEOUT_SECS 10 |
| |
| static inline void pqi_ctrl_wait_until_quiesced(struct pqi_ctrl_info *ctrl_info) |
| { |
| unsigned long start_jiffies; |
| unsigned long warning_timeout; |
| bool displayed_warning; |
| |
| displayed_warning = false; |
| start_jiffies = jiffies; |
| warning_timeout = (PQI_QUIESCE_WARNING_TIMEOUT_SECS * HZ) + start_jiffies; |
| |
| while (atomic_read(&ctrl_info->num_busy_threads) > |
| atomic_read(&ctrl_info->num_blocked_threads)) { |
| if (time_after(jiffies, warning_timeout)) { |
| dev_warn(&ctrl_info->pci_dev->dev, |
| "waiting %u seconds for driver activity to quiesce\n", |
| jiffies_to_msecs(jiffies - start_jiffies) / 1000); |
| displayed_warning = true; |
| warning_timeout = (PQI_QUIESCE_WARNING_TIMEOUT_SECS * HZ) + jiffies; |
| } |
| usleep_range(1000, 2000); |
| } |
| |
| if (displayed_warning) |
| dev_warn(&ctrl_info->pci_dev->dev, |
| "driver activity quiesced after waiting for %u seconds\n", |
| jiffies_to_msecs(jiffies - start_jiffies) / 1000); |
| } |
| |
| static inline bool pqi_device_offline(struct pqi_scsi_dev *device) |
| { |
| return device->device_offline; |
| } |
| |
| static inline void pqi_ctrl_ofa_start(struct pqi_ctrl_info *ctrl_info) |
| { |
| mutex_lock(&ctrl_info->ofa_mutex); |
| } |
| |
| static inline void pqi_ctrl_ofa_done(struct pqi_ctrl_info *ctrl_info) |
| { |
| mutex_unlock(&ctrl_info->ofa_mutex); |
| } |
| |
| static inline void pqi_wait_until_ofa_finished(struct pqi_ctrl_info *ctrl_info) |
| { |
| mutex_lock(&ctrl_info->ofa_mutex); |
| mutex_unlock(&ctrl_info->ofa_mutex); |
| } |
| |
| static inline bool pqi_ofa_in_progress(struct pqi_ctrl_info *ctrl_info) |
| { |
| return mutex_is_locked(&ctrl_info->ofa_mutex); |
| } |
| |
| static inline void pqi_device_remove_start(struct pqi_scsi_dev *device) |
| { |
| device->in_remove = true; |
| } |
| |
| static inline bool pqi_device_in_remove(struct pqi_scsi_dev *device) |
| { |
| return device->in_remove; |
| } |
| |
| static inline void pqi_device_reset_start(struct pqi_scsi_dev *device, u8 lun) |
| { |
| device->in_reset[lun] = true; |
| } |
| |
| static inline void pqi_device_reset_done(struct pqi_scsi_dev *device, u8 lun) |
| { |
| device->in_reset[lun] = false; |
| } |
| |
| static inline bool pqi_device_in_reset(struct pqi_scsi_dev *device, u8 lun) |
| { |
| return device->in_reset[lun]; |
| } |
| |
| static inline int pqi_event_type_to_event_index(unsigned int event_type) |
| { |
| int index; |
| |
| for (index = 0; index < ARRAY_SIZE(pqi_supported_event_types); index++) |
| if (event_type == pqi_supported_event_types[index]) |
| return index; |
| |
| return -1; |
| } |
| |
| static inline bool pqi_is_supported_event(unsigned int event_type) |
| { |
| return pqi_event_type_to_event_index(event_type) != -1; |
| } |
| |
| static inline void pqi_schedule_rescan_worker_with_delay(struct pqi_ctrl_info *ctrl_info, |
| unsigned long delay) |
| { |
| if (pqi_ctrl_offline(ctrl_info)) |
| return; |
| |
| schedule_delayed_work(&ctrl_info->rescan_work, delay); |
| } |
| |
| static inline void pqi_schedule_rescan_worker(struct pqi_ctrl_info *ctrl_info) |
| { |
| pqi_schedule_rescan_worker_with_delay(ctrl_info, 0); |
| } |
| |
| #define PQI_RESCAN_WORK_DELAY (10 * HZ) |
| |
| static inline void pqi_schedule_rescan_worker_delayed(struct pqi_ctrl_info *ctrl_info) |
| { |
| pqi_schedule_rescan_worker_with_delay(ctrl_info, PQI_RESCAN_WORK_DELAY); |
| } |
| |
| static inline void pqi_cancel_rescan_worker(struct pqi_ctrl_info *ctrl_info) |
| { |
| cancel_delayed_work_sync(&ctrl_info->rescan_work); |
| } |
| |
| static inline u32 pqi_read_heartbeat_counter(struct pqi_ctrl_info *ctrl_info) |
| { |
| if (!ctrl_info->heartbeat_counter) |
| return 0; |
| |
| return readl(ctrl_info->heartbeat_counter); |
| } |
| |
| static inline u8 pqi_read_soft_reset_status(struct pqi_ctrl_info *ctrl_info) |
| { |
| return readb(ctrl_info->soft_reset_status); |
| } |
| |
| static inline void pqi_clear_soft_reset_status(struct pqi_ctrl_info *ctrl_info) |
| { |
| u8 status; |
| |
| status = pqi_read_soft_reset_status(ctrl_info); |
| status &= ~PQI_SOFT_RESET_ABORT; |
| writeb(status, ctrl_info->soft_reset_status); |
| } |
| |
| static inline bool pqi_is_io_high_priority(struct pqi_scsi_dev *device, struct scsi_cmnd *scmd) |
| { |
| bool io_high_prio; |
| int priority_class; |
| |
| io_high_prio = false; |
| |
| if (device->ncq_prio_enable) { |
| priority_class = |
| IOPRIO_PRIO_CLASS(req_get_ioprio(scsi_cmd_to_rq(scmd))); |
| if (priority_class == IOPRIO_CLASS_RT) { |
| /* Set NCQ priority for read/write commands. */ |
| switch (scmd->cmnd[0]) { |
| case WRITE_16: |
| case READ_16: |
| case WRITE_12: |
| case READ_12: |
| case WRITE_10: |
| case READ_10: |
| case WRITE_6: |
| case READ_6: |
| io_high_prio = true; |
| break; |
| } |
| } |
| } |
| |
| return io_high_prio; |
| } |
| |
| static int pqi_map_single(struct pci_dev *pci_dev, |
| struct pqi_sg_descriptor *sg_descriptor, void *buffer, |
| size_t buffer_length, enum dma_data_direction data_direction) |
| { |
| dma_addr_t bus_address; |
| |
| if (!buffer || buffer_length == 0 || data_direction == DMA_NONE) |
| return 0; |
| |
| bus_address = dma_map_single(&pci_dev->dev, buffer, buffer_length, |
| data_direction); |
| if (dma_mapping_error(&pci_dev->dev, bus_address)) |
| return -ENOMEM; |
| |
| put_unaligned_le64((u64)bus_address, &sg_descriptor->address); |
| put_unaligned_le32(buffer_length, &sg_descriptor->length); |
| put_unaligned_le32(CISS_SG_LAST, &sg_descriptor->flags); |
| |
| return 0; |
| } |
| |
| static void pqi_pci_unmap(struct pci_dev *pci_dev, |
| struct pqi_sg_descriptor *descriptors, int num_descriptors, |
| enum dma_data_direction data_direction) |
| { |
| int i; |
| |
| if (data_direction == DMA_NONE) |
| return; |
| |
| for (i = 0; i < num_descriptors; i++) |
| dma_unmap_single(&pci_dev->dev, |
| (dma_addr_t)get_unaligned_le64(&descriptors[i].address), |
| get_unaligned_le32(&descriptors[i].length), |
| data_direction); |
| } |
| |
| static int pqi_build_raid_path_request(struct pqi_ctrl_info *ctrl_info, |
| struct pqi_raid_path_request *request, u8 cmd, |
| u8 *scsi3addr, void *buffer, size_t buffer_length, |
| u16 vpd_page, enum dma_data_direction *dir) |
| { |
| u8 *cdb; |
| size_t cdb_length = buffer_length; |
| |
| memset(request, 0, sizeof(*request)); |
| |
| request->header.iu_type = PQI_REQUEST_IU_RAID_PATH_IO; |
| put_unaligned_le16(offsetof(struct pqi_raid_path_request, |
| sg_descriptors[1]) - PQI_REQUEST_HEADER_LENGTH, |
| &request->header.iu_length); |
| put_unaligned_le32(buffer_length, &request->buffer_length); |
| memcpy(request->lun_number, scsi3addr, sizeof(request->lun_number)); |
| request->task_attribute = SOP_TASK_ATTRIBUTE_SIMPLE; |
| request->additional_cdb_bytes_usage = SOP_ADDITIONAL_CDB_BYTES_0; |
| |
| cdb = request->cdb; |
| |
| switch (cmd) { |
| case INQUIRY: |
| request->data_direction = SOP_READ_FLAG; |
| cdb[0] = INQUIRY; |
| if (vpd_page & VPD_PAGE) { |
| cdb[1] = 0x1; |
| cdb[2] = (u8)vpd_page; |
| } |
| cdb[4] = (u8)cdb_length; |
| break; |
| case CISS_REPORT_LOG: |
| case CISS_REPORT_PHYS: |
| request->data_direction = SOP_READ_FLAG; |
| cdb[0] = cmd; |
| if (cmd == CISS_REPORT_PHYS) { |
| if (ctrl_info->rpl_extended_format_4_5_supported) |
| cdb[1] = CISS_REPORT_PHYS_FLAG_EXTENDED_FORMAT_4; |
| else |
| cdb[1] = CISS_REPORT_PHYS_FLAG_EXTENDED_FORMAT_2; |
| } else { |
| cdb[1] = ctrl_info->ciss_report_log_flags; |
| } |
| put_unaligned_be32(cdb_length, &cdb[6]); |
| break; |
| case CISS_GET_RAID_MAP: |
| request->data_direction = SOP_READ_FLAG; |
| cdb[0] = CISS_READ; |
| cdb[1] = CISS_GET_RAID_MAP; |
| put_unaligned_be32(cdb_length, &cdb[6]); |
| break; |
| case SA_FLUSH_CACHE: |
| request->header.driver_flags = PQI_DRIVER_NONBLOCKABLE_REQUEST; |
| request->data_direction = SOP_WRITE_FLAG; |
| cdb[0] = BMIC_WRITE; |
| cdb[6] = BMIC_FLUSH_CACHE; |
| put_unaligned_be16(cdb_length, &cdb[7]); |
| break; |
| case BMIC_SENSE_DIAG_OPTIONS: |
| cdb_length = 0; |
| fallthrough; |
| case BMIC_IDENTIFY_CONTROLLER: |
| case BMIC_IDENTIFY_PHYSICAL_DEVICE: |
| case BMIC_SENSE_SUBSYSTEM_INFORMATION: |
| case BMIC_SENSE_FEATURE: |
| request->data_direction = SOP_READ_FLAG; |
| cdb[0] = BMIC_READ; |
| cdb[6] = cmd; |
| put_unaligned_be16(cdb_length, &cdb[7]); |
| break; |
| case BMIC_SET_DIAG_OPTIONS: |
| cdb_length = 0; |
| fallthrough; |
| case BMIC_WRITE_HOST_WELLNESS: |
| request->data_direction = SOP_WRITE_FLAG; |
| cdb[0] = BMIC_WRITE; |
| cdb[6] = cmd; |
| put_unaligned_be16(cdb_length, &cdb[7]); |
| break; |
| case BMIC_CSMI_PASSTHRU: |
| request->data_direction = SOP_BIDIRECTIONAL; |
| cdb[0] = BMIC_WRITE; |
| cdb[5] = CSMI_CC_SAS_SMP_PASSTHRU; |
| cdb[6] = cmd; |
| put_unaligned_be16(cdb_length, &cdb[7]); |
| break; |
| default: |
| dev_err(&ctrl_info->pci_dev->dev, "unknown command 0x%c\n", cmd); |
| break; |
| } |
| |
| switch (request->data_direction) { |
| case SOP_READ_FLAG: |
| *dir = DMA_FROM_DEVICE; |
| break; |
| case SOP_WRITE_FLAG: |
| *dir = DMA_TO_DEVICE; |
| break; |
| case SOP_NO_DIRECTION_FLAG: |
| *dir = DMA_NONE; |
| break; |
| default: |
| *dir = DMA_BIDIRECTIONAL; |
| break; |
| } |
| |
| return pqi_map_single(ctrl_info->pci_dev, &request->sg_descriptors[0], |
| buffer, buffer_length, *dir); |
| } |
| |
| static inline void pqi_reinit_io_request(struct pqi_io_request *io_request) |
| { |
| io_request->scmd = NULL; |
| io_request->status = 0; |
| io_request->error_info = NULL; |
| io_request->raid_bypass = false; |
| } |
| |
| static inline struct pqi_io_request *pqi_alloc_io_request(struct pqi_ctrl_info *ctrl_info, struct scsi_cmnd *scmd) |
| { |
| struct pqi_io_request *io_request; |
| u16 i; |
| |
| if (scmd) { /* SML I/O request */ |
| u32 blk_tag = blk_mq_unique_tag(scsi_cmd_to_rq(scmd)); |
| |
| i = blk_mq_unique_tag_to_tag(blk_tag); |
| io_request = &ctrl_info->io_request_pool[i]; |
| if (atomic_inc_return(&io_request->refcount) > 1) { |
| atomic_dec(&io_request->refcount); |
| return NULL; |
| } |
| } else { /* IOCTL or driver internal request */ |
| /* |
| * benignly racy - may have to wait for an open slot. |
| * command slot range is scsi_ml_can_queue - |
| * [scsi_ml_can_queue + (PQI_RESERVED_IO_SLOTS - 1)] |
| */ |
| i = 0; |
| while (1) { |
| io_request = &ctrl_info->io_request_pool[ctrl_info->scsi_ml_can_queue + i]; |
| if (atomic_inc_return(&io_request->refcount) == 1) |
| break; |
| atomic_dec(&io_request->refcount); |
| i = (i + 1) % PQI_RESERVED_IO_SLOTS; |
| } |
| } |
| |
| if (io_request) |
| pqi_reinit_io_request(io_request); |
| |
| return io_request; |
| } |
| |
| static void pqi_free_io_request(struct pqi_io_request *io_request) |
| { |
| atomic_dec(&io_request->refcount); |
| } |
| |
| static int pqi_send_scsi_raid_request(struct pqi_ctrl_info *ctrl_info, u8 cmd, |
| u8 *scsi3addr, void *buffer, size_t buffer_length, u16 vpd_page, |
| struct pqi_raid_error_info *error_info) |
| { |
| int rc; |
| struct pqi_raid_path_request request; |
| enum dma_data_direction dir; |
| |
| rc = pqi_build_raid_path_request(ctrl_info, &request, cmd, scsi3addr, |
| buffer, buffer_length, vpd_page, &dir); |
| if (rc) |
| return rc; |
| |
| rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header, 0, error_info); |
| |
| pqi_pci_unmap(ctrl_info->pci_dev, request.sg_descriptors, 1, dir); |
| |
| return rc; |
| } |
| |
| /* helper functions for pqi_send_scsi_raid_request */ |
| |
| static inline int pqi_send_ctrl_raid_request(struct pqi_ctrl_info *ctrl_info, |
| u8 cmd, void *buffer, size_t buffer_length) |
| { |
| return pqi_send_scsi_raid_request(ctrl_info, cmd, RAID_CTLR_LUNID, |
| buffer, buffer_length, 0, NULL); |
| } |
| |
| static inline int pqi_send_ctrl_raid_with_error(struct pqi_ctrl_info *ctrl_info, |
| u8 cmd, void *buffer, size_t buffer_length, |
| struct pqi_raid_error_info *error_info) |
| { |
| return pqi_send_scsi_raid_request(ctrl_info, cmd, RAID_CTLR_LUNID, |
| buffer, buffer_length, 0, error_info); |
| } |
| |
| static inline int pqi_identify_controller(struct pqi_ctrl_info *ctrl_info, |
| struct bmic_identify_controller *buffer) |
| { |
| return pqi_send_ctrl_raid_request(ctrl_info, BMIC_IDENTIFY_CONTROLLER, |
| buffer, sizeof(*buffer)); |
| } |
| |
| static inline int pqi_sense_subsystem_info(struct pqi_ctrl_info *ctrl_info, |
| struct bmic_sense_subsystem_info *sense_info) |
| { |
| return pqi_send_ctrl_raid_request(ctrl_info, |
| BMIC_SENSE_SUBSYSTEM_INFORMATION, sense_info, |
| sizeof(*sense_info)); |
| } |
| |
| static inline int pqi_scsi_inquiry(struct pqi_ctrl_info *ctrl_info, |
| u8 *scsi3addr, u16 vpd_page, void *buffer, size_t buffer_length) |
| { |
| return pqi_send_scsi_raid_request(ctrl_info, INQUIRY, scsi3addr, |
| buffer, buffer_length, vpd_page, NULL); |
| } |
| |
| static int pqi_identify_physical_device(struct pqi_ctrl_info *ctrl_info, |
| struct pqi_scsi_dev *device, |
| struct bmic_identify_physical_device *buffer, size_t buffer_length) |
| { |
| int rc; |
| enum dma_data_direction dir; |
| u16 bmic_device_index; |
| struct pqi_raid_path_request request; |
| |
| rc = pqi_build_raid_path_request(ctrl_info, &request, |
| BMIC_IDENTIFY_PHYSICAL_DEVICE, RAID_CTLR_LUNID, buffer, |
| buffer_length, 0, &dir); |
| if (rc) |
| return rc; |
| |
| bmic_device_index = CISS_GET_DRIVE_NUMBER(device->scsi3addr); |
| request.cdb[2] = (u8)bmic_device_index; |
| request.cdb[9] = (u8)(bmic_device_index >> 8); |
| |
| rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header, 0, NULL); |
| |
| pqi_pci_unmap(ctrl_info->pci_dev, request.sg_descriptors, 1, dir); |
| |
| return rc; |
| } |
| |
| static inline u32 pqi_aio_limit_to_bytes(__le16 *limit) |
| { |
| u32 bytes; |
| |
| bytes = get_unaligned_le16(limit); |
| if (bytes == 0) |
| bytes = ~0; |
| else |
| bytes *= 1024; |
| |
| return bytes; |
| } |
| |
| #pragma pack(1) |
| |
| struct bmic_sense_feature_buffer { |
| struct bmic_sense_feature_buffer_header header; |
| struct bmic_sense_feature_io_page_aio_subpage aio_subpage; |
| }; |
| |
| #pragma pack() |
| |
| #define MINIMUM_AIO_SUBPAGE_BUFFER_LENGTH \ |
| offsetofend(struct bmic_sense_feature_buffer, \ |
| aio_subpage.max_write_raid_1_10_3drive) |
| |
| #define MINIMUM_AIO_SUBPAGE_LENGTH \ |
| (offsetofend(struct bmic_sense_feature_io_page_aio_subpage, \ |
| max_write_raid_1_10_3drive) - \ |
| sizeof_field(struct bmic_sense_feature_io_page_aio_subpage, header)) |
| |
| static int pqi_get_advanced_raid_bypass_config(struct pqi_ctrl_info *ctrl_info) |
| { |
| int rc; |
| enum dma_data_direction dir; |
| struct pqi_raid_path_request request; |
| struct bmic_sense_feature_buffer *buffer; |
| |
| buffer = kmalloc(sizeof(*buffer), GFP_KERNEL); |
| if (!buffer) |
| return -ENOMEM; |
| |
| rc = pqi_build_raid_path_request(ctrl_info, &request, BMIC_SENSE_FEATURE, RAID_CTLR_LUNID, |
| buffer, sizeof(*buffer), 0, &dir); |
| if (rc) |
| goto error; |
| |
| request.cdb[2] = BMIC_SENSE_FEATURE_IO_PAGE; |
| request.cdb[3] = BMIC_SENSE_FEATURE_IO_PAGE_AIO_SUBPAGE; |
| |
| rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header, 0, NULL); |
| |
| pqi_pci_unmap(ctrl_info->pci_dev, request.sg_descriptors, 1, dir); |
| |
| if (rc) |
| goto error; |
| |
| if (buffer->header.page_code != BMIC_SENSE_FEATURE_IO_PAGE || |
| buffer->header.subpage_code != |
| BMIC_SENSE_FEATURE_IO_PAGE_AIO_SUBPAGE || |
| get_unaligned_le16(&buffer->header.buffer_length) < |
| MINIMUM_AIO_SUBPAGE_BUFFER_LENGTH || |
| buffer->aio_subpage.header.page_code != |
| BMIC_SENSE_FEATURE_IO_PAGE || |
| buffer->aio_subpage.header.subpage_code != |
| BMIC_SENSE_FEATURE_IO_PAGE_AIO_SUBPAGE || |
| get_unaligned_le16(&buffer->aio_subpage.header.page_length) < |
| MINIMUM_AIO_SUBPAGE_LENGTH) { |
| goto error; |
| } |
| |
| ctrl_info->max_transfer_encrypted_sas_sata = |
| pqi_aio_limit_to_bytes( |
| &buffer->aio_subpage.max_transfer_encrypted_sas_sata); |
| |
| ctrl_info->max_transfer_encrypted_nvme = |
| pqi_aio_limit_to_bytes( |
| &buffer->aio_subpage.max_transfer_encrypted_nvme); |
| |
| ctrl_info->max_write_raid_5_6 = |
| pqi_aio_limit_to_bytes( |
| &buffer->aio_subpage.max_write_raid_5_6); |
| |
| ctrl_info->max_write_raid_1_10_2drive = |
| pqi_aio_limit_to_bytes( |
| &buffer->aio_subpage.max_write_raid_1_10_2drive); |
| |
| ctrl_info->max_write_raid_1_10_3drive = |
| pqi_aio_limit_to_bytes( |
| &buffer->aio_subpage.max_write_raid_1_10_3drive); |
| |
| error: |
| kfree(buffer); |
| |
| return rc; |
| } |
| |
| static int pqi_flush_cache(struct pqi_ctrl_info *ctrl_info, |
| enum bmic_flush_cache_shutdown_event shutdown_event) |
| { |
| int rc; |
| struct bmic_flush_cache *flush_cache; |
| |
| flush_cache = kzalloc(sizeof(*flush_cache), GFP_KERNEL); |
| if (!flush_cache) |
| return -ENOMEM; |
| |
| flush_cache->shutdown_event = shutdown_event; |
| |
| rc = pqi_send_ctrl_raid_request(ctrl_info, SA_FLUSH_CACHE, flush_cache, |
| sizeof(*flush_cache)); |
| |
| kfree(flush_cache); |
| |
| return rc; |
| } |
| |
| int pqi_csmi_smp_passthru(struct pqi_ctrl_info *ctrl_info, |
| struct bmic_csmi_smp_passthru_buffer *buffer, size_t buffer_length, |
| struct pqi_raid_error_info *error_info) |
| { |
| return pqi_send_ctrl_raid_with_error(ctrl_info, BMIC_CSMI_PASSTHRU, |
| buffer, buffer_length, error_info); |
| } |
| |
| #define PQI_FETCH_PTRAID_DATA (1 << 31) |
| |
| static int pqi_set_diag_rescan(struct pqi_ctrl_info *ctrl_info) |
| { |
| int rc; |
| struct bmic_diag_options *diag; |
| |
| diag = kzalloc(sizeof(*diag), GFP_KERNEL); |
| if (!diag) |
| return -ENOMEM; |
| |
| rc = pqi_send_ctrl_raid_request(ctrl_info, BMIC_SENSE_DIAG_OPTIONS, |
| diag, sizeof(*diag)); |
| if (rc) |
| goto out; |
| |
| diag->options |= cpu_to_le32(PQI_FETCH_PTRAID_DATA); |
| |
| rc = pqi_send_ctrl_raid_request(ctrl_info, BMIC_SET_DIAG_OPTIONS, diag, |
| sizeof(*diag)); |
| |
| out: |
| kfree(diag); |
| |
| return rc; |
| } |
| |
| static inline int pqi_write_host_wellness(struct pqi_ctrl_info *ctrl_info, |
| void *buffer, size_t buffer_length) |
| { |
| return pqi_send_ctrl_raid_request(ctrl_info, BMIC_WRITE_HOST_WELLNESS, |
| buffer, buffer_length); |
| } |
| |
| #pragma pack(1) |
| |
| struct bmic_host_wellness_driver_version { |
| u8 start_tag[4]; |
| u8 driver_version_tag[2]; |
| __le16 driver_version_length; |
| char driver_version[32]; |
| u8 dont_write_tag[2]; |
| u8 end_tag[2]; |
| }; |
| |
| #pragma pack() |
| |
| static int pqi_write_driver_version_to_host_wellness( |
| struct pqi_ctrl_info *ctrl_info) |
| { |
| int rc; |
| struct bmic_host_wellness_driver_version *buffer; |
| size_t buffer_length; |
| |
| buffer_length = sizeof(*buffer); |
| |
| buffer = kmalloc(buffer_length, GFP_KERNEL); |
| if (!buffer) |
| return -ENOMEM; |
| |
| buffer->start_tag[0] = '<'; |
| buffer->start_tag[1] = 'H'; |
| buffer->start_tag[2] = 'W'; |
| buffer->start_tag[3] = '>'; |
| buffer->driver_version_tag[0] = 'D'; |
| buffer->driver_version_tag[1] = 'V'; |
| put_unaligned_le16(sizeof(buffer->driver_version), |
| &buffer->driver_version_length); |
| strncpy(buffer->driver_version, "Linux " DRIVER_VERSION, |
| sizeof(buffer->driver_version) - 1); |
| buffer->driver_version[sizeof(buffer->driver_version) - 1] = '\0'; |
| buffer->dont_write_tag[0] = 'D'; |
| buffer->dont_write_tag[1] = 'W'; |
| buffer->end_tag[0] = 'Z'; |
| buffer->end_tag[1] = 'Z'; |
| |
| rc = pqi_write_host_wellness(ctrl_info, buffer, buffer_length); |
| |
| kfree(buffer); |
| |
| return rc; |
| } |
| |
| #pragma pack(1) |
| |
| struct bmic_host_wellness_time { |
| u8 start_tag[4]; |
| u8 time_tag[2]; |
| __le16 time_length; |
| u8 time[8]; |
| u8 dont_write_tag[2]; |
| u8 end_tag[2]; |
| }; |
| |
| #pragma pack() |
| |
| static int pqi_write_current_time_to_host_wellness( |
| struct pqi_ctrl_info *ctrl_info) |
| { |
| int rc; |
| struct bmic_host_wellness_time *buffer; |
| size_t buffer_length; |
| time64_t local_time; |
| unsigned int year; |
| struct tm tm; |
| |
| buffer_length = sizeof(*buffer); |
| |
| buffer = kmalloc(buffer_length, GFP_KERNEL); |
| if (!buffer) |
| return -ENOMEM; |
| |
| buffer->start_tag[0] = '<'; |
| buffer->start_tag[1] = 'H'; |
| buffer->start_tag[2] = 'W'; |
| buffer->start_tag[3] = '>'; |
| buffer->time_tag[0] = 'T'; |
| buffer->time_tag[1] = 'D'; |
| put_unaligned_le16(sizeof(buffer->time), |
| &buffer->time_length); |
| |
| local_time = ktime_get_real_seconds(); |
| time64_to_tm(local_time, -sys_tz.tz_minuteswest * 60, &tm); |
| year = tm.tm_year + 1900; |
| |
| buffer->time[0] = bin2bcd(tm.tm_hour); |
| buffer->time[1] = bin2bcd(tm.tm_min); |
| buffer->time[2] = bin2bcd(tm.tm_sec); |
| buffer->time[3] = 0; |
| buffer->time[4] = bin2bcd(tm.tm_mon + 1); |
| buffer->time[5] = bin2bcd(tm.tm_mday); |
| buffer->time[6] = bin2bcd(year / 100); |
| buffer->time[7] = bin2bcd(year % 100); |
| |
| buffer->dont_write_tag[0] = 'D'; |
| buffer->dont_write_tag[1] = 'W'; |
| buffer->end_tag[0] = 'Z'; |
| buffer->end_tag[1] = 'Z'; |
| |
| rc = pqi_write_host_wellness(ctrl_info, buffer, buffer_length); |
| |
| kfree(buffer); |
| |
| return rc; |
| } |
| |
| #define PQI_UPDATE_TIME_WORK_INTERVAL (24UL * 60 * 60 * HZ) |
| |
| static void pqi_update_time_worker(struct work_struct *work) |
| { |
| int rc; |
| struct pqi_ctrl_info *ctrl_info; |
| |
| ctrl_info = container_of(to_delayed_work(work), struct pqi_ctrl_info, |
| update_time_work); |
| |
| rc = pqi_write_current_time_to_host_wellness(ctrl_info); |
| if (rc) |
| dev_warn(&ctrl_info->pci_dev->dev, |
| "error updating time on controller\n"); |
| |
| schedule_delayed_work(&ctrl_info->update_time_work, |
| PQI_UPDATE_TIME_WORK_INTERVAL); |
| } |
| |
| static inline void pqi_schedule_update_time_worker(struct pqi_ctrl_info *ctrl_info) |
| { |
| schedule_delayed_work(&ctrl_info->update_time_work, 0); |
| } |
| |
| static inline void pqi_cancel_update_time_worker(struct pqi_ctrl_info *ctrl_info) |
| { |
| cancel_delayed_work_sync(&ctrl_info->update_time_work); |
| } |
| |
| static inline int pqi_report_luns(struct pqi_ctrl_info *ctrl_info, u8 cmd, void *buffer, |
| size_t buffer_length) |
| { |
| return pqi_send_ctrl_raid_request(ctrl_info, cmd, buffer, buffer_length); |
| } |
| |
| static int pqi_report_phys_logical_luns(struct pqi_ctrl_info *ctrl_info, u8 cmd, void **buffer) |
| { |
| int rc; |
| size_t lun_list_length; |
| size_t lun_data_length; |
| size_t new_lun_list_length; |
| void *lun_data = NULL; |
| struct report_lun_header *report_lun_header; |
| |
| report_lun_header = kmalloc(sizeof(*report_lun_header), GFP_KERNEL); |
| if (!report_lun_header) { |
| rc = -ENOMEM; |
| goto out; |
| } |
| |
| rc = pqi_report_luns(ctrl_info, cmd, report_lun_header, sizeof(*report_lun_header)); |
| if (rc) |
| goto out; |
| |
| lun_list_length = get_unaligned_be32(&report_lun_header->list_length); |
| |
| again: |
| lun_data_length = sizeof(struct report_lun_header) + lun_list_length; |
| |
| lun_data = kmalloc(lun_data_length, GFP_KERNEL); |
| if (!lun_data) { |
| rc = -ENOMEM; |
| goto out; |
| } |
| |
| if (lun_list_length == 0) { |
| memcpy(lun_data, report_lun_header, sizeof(*report_lun_header)); |
| goto out; |
| } |
| |
| rc = pqi_report_luns(ctrl_info, cmd, lun_data, lun_data_length); |
| if (rc) |
| goto out; |
| |
| new_lun_list_length = |
| get_unaligned_be32(&((struct report_lun_header *)lun_data)->list_length); |
| |
| if (new_lun_list_length > lun_list_length) { |
| lun_list_length = new_lun_list_length; |
| kfree(lun_data); |
| goto again; |
| } |
| |
| out: |
| kfree(report_lun_header); |
| |
| if (rc) { |
| kfree(lun_data); |
| lun_data = NULL; |
| } |
| |
| *buffer = lun_data; |
| |
| return rc; |
| } |
| |
| static inline int pqi_report_phys_luns(struct pqi_ctrl_info *ctrl_info, void **buffer) |
| { |
| int rc; |
| unsigned int i; |
| u8 rpl_response_format; |
| u32 num_physicals; |
| void *rpl_list; |
| struct report_lun_header *rpl_header; |
| struct report_phys_lun_8byte_wwid_list *rpl_8byte_wwid_list; |
| struct report_phys_lun_16byte_wwid_list *rpl_16byte_wwid_list; |
| |
| rc = pqi_report_phys_logical_luns(ctrl_info, CISS_REPORT_PHYS, &rpl_list); |
| if (rc) |
| return rc; |
| |
| if (ctrl_info->rpl_extended_format_4_5_supported) { |
| rpl_header = rpl_list; |
| rpl_response_format = rpl_header->flags & CISS_REPORT_PHYS_FLAG_EXTENDED_FORMAT_MASK; |
| if (rpl_response_format == CISS_REPORT_PHYS_FLAG_EXTENDED_FORMAT_4) { |
| *buffer = rpl_list; |
| return 0; |
| } else if (rpl_response_format != CISS_REPORT_PHYS_FLAG_EXTENDED_FORMAT_2) { |
| dev_err(&ctrl_info->pci_dev->dev, |
| "RPL returned unsupported data format %u\n", |
| rpl_response_format); |
| return -EINVAL; |
| } else { |
| dev_warn(&ctrl_info->pci_dev->dev, |
| "RPL returned extended format 2 instead of 4\n"); |
| } |
| } |
| |
| rpl_8byte_wwid_list = rpl_list; |
| num_physicals = get_unaligned_be32(&rpl_8byte_wwid_list->header.list_length) / sizeof(rpl_8byte_wwid_list->lun_entries[0]); |
| |
| rpl_16byte_wwid_list = kmalloc(struct_size(rpl_16byte_wwid_list, lun_entries, |
| num_physicals), GFP_KERNEL); |
| if (!rpl_16byte_wwid_list) |
| return -ENOMEM; |
| |
| put_unaligned_be32(num_physicals * sizeof(struct report_phys_lun_16byte_wwid), |
| &rpl_16byte_wwid_list->header.list_length); |
| rpl_16byte_wwid_list->header.flags = rpl_8byte_wwid_list->header.flags; |
| |
| for (i = 0; i < num_physicals; i++) { |
| memcpy(&rpl_16byte_wwid_list->lun_entries[i].lunid, &rpl_8byte_wwid_list->lun_entries[i].lunid, sizeof(rpl_8byte_wwid_list->lun_entries[i].lunid)); |
| memcpy(&rpl_16byte_wwid_list->lun_entries[i].wwid[0], &rpl_8byte_wwid_list->lun_entries[i].wwid, sizeof(rpl_8byte_wwid_list->lun_entries[i].wwid)); |
| memset(&rpl_16byte_wwid_list->lun_entries[i].wwid[8], 0, 8); |
| rpl_16byte_wwid_list->lun_entries[i].device_type = rpl_8byte_wwid_list->lun_entries[i].device_type; |
| rpl_16byte_wwid_list->lun_entries[i].device_flags = rpl_8byte_wwid_list->lun_entries[i].device_flags; |
| rpl_16byte_wwid_list->lun_entries[i].lun_count = rpl_8byte_wwid_list->lun_entries[i].lun_count; |
| rpl_16byte_wwid_list->lun_entries[i].redundant_paths = rpl_8byte_wwid_list->lun_entries[i].redundant_paths; |
| rpl_16byte_wwid_list->lun_entries[i].aio_handle = rpl_8byte_wwid_list->lun_entries[i].aio_handle; |
| } |
| |
| kfree(rpl_8byte_wwid_list); |
| *buffer = rpl_16byte_wwid_list; |
| |
| return 0; |
| } |
| |
| static inline int pqi_report_logical_luns(struct pqi_ctrl_info *ctrl_info, void **buffer) |
| { |
| return pqi_report_phys_logical_luns(ctrl_info, CISS_REPORT_LOG, buffer); |
| } |
| |
| static int pqi_get_device_lists(struct pqi_ctrl_info *ctrl_info, |
| struct report_phys_lun_16byte_wwid_list **physdev_list, |
| struct report_log_lun_list **logdev_list) |
| { |
| int rc; |
| size_t logdev_list_length; |
| size_t logdev_data_length; |
| struct report_log_lun_list *internal_logdev_list; |
| struct report_log_lun_list *logdev_data; |
| struct report_lun_header report_lun_header; |
| |
| rc = pqi_report_phys_luns(ctrl_info, (void **)physdev_list); |
| if (rc) |
| dev_err(&ctrl_info->pci_dev->dev, |
| "report physical LUNs failed\n"); |
| |
| rc = pqi_report_logical_luns(ctrl_info, (void **)logdev_list); |
| if (rc) |
| dev_err(&ctrl_info->pci_dev->dev, |
| "report logical LUNs failed\n"); |
| |
| /* |
| * Tack the controller itself onto the end of the logical device list |
| * by adding a list entry that is all zeros. |
| */ |
| |
| logdev_data = *logdev_list; |
| |
| if (logdev_data) { |
| logdev_list_length = |
| get_unaligned_be32(&logdev_data->header.list_length); |
| } else { |
| memset(&report_lun_header, 0, sizeof(report_lun_header)); |
| logdev_data = |
| (struct report_log_lun_list *)&report_lun_header; |
| logdev_list_length = 0; |
| } |
| |
| logdev_data_length = sizeof(struct report_lun_header) + |
| logdev_list_length; |
| |
| internal_logdev_list = kmalloc(logdev_data_length + |
| sizeof(struct report_log_lun), GFP_KERNEL); |
| if (!internal_logdev_list) { |
| kfree(*logdev_list); |
| *logdev_list = NULL; |
| return -ENOMEM; |
| } |
| |
| memcpy(internal_logdev_list, logdev_data, logdev_data_length); |
| memset((u8 *)internal_logdev_list + logdev_data_length, 0, |
| sizeof(struct report_log_lun)); |
| put_unaligned_be32(logdev_list_length + |
| sizeof(struct report_log_lun), |
| &internal_logdev_list->header.list_length); |
| |
| kfree(*logdev_list); |
| *logdev_list = internal_logdev_list; |
| |
| return 0; |
| } |
| |
| static inline void pqi_set_bus_target_lun(struct pqi_scsi_dev *device, |
| int bus, int target, int lun) |
| { |
| device->bus = bus; |
| device->target = target; |
| device->lun = lun; |
| } |
| |
| static void pqi_assign_bus_target_lun(struct pqi_scsi_dev *device) |
| { |
| u8 *scsi3addr; |
| u32 lunid; |
| int bus; |
| int target; |
| int lun; |
| |
| scsi3addr = device->scsi3addr; |
| lunid = get_unaligned_le32(scsi3addr); |
| |
| if (pqi_is_hba_lunid(scsi3addr)) { |
| /* The specified device is the controller. */ |
| pqi_set_bus_target_lun(device, PQI_HBA_BUS, 0, lunid & 0x3fff); |
| device->target_lun_valid = true; |
| return; |
| } |
| |
| if (pqi_is_logical_device(device)) { |
| if (device->is_external_raid_device) { |
| bus = PQI_EXTERNAL_RAID_VOLUME_BUS; |
| target = (lunid >> 16) & 0x3fff; |
| lun = lunid & 0xff; |
| } else { |
| bus = PQI_RAID_VOLUME_BUS; |
| target = 0; |
| lun = lunid & 0x3fff; |
| } |
| pqi_set_bus_target_lun(device, bus, target, lun); |
| device->target_lun_valid = true; |
| return; |
| } |
| |
| /* |
| * Defer target and LUN assignment for non-controller physical devices |
| * because the SAS transport layer will make these assignments later. |
| */ |
| pqi_set_bus_target_lun(device, PQI_PHYSICAL_DEVICE_BUS, 0, 0); |
| } |
| |
| static void pqi_get_raid_level(struct pqi_ctrl_info *ctrl_info, |
| struct pqi_scsi_dev *device) |
| { |
| int rc; |
| u8 raid_level; |
| u8 *buffer; |
| |
| raid_level = SA_RAID_UNKNOWN; |
| |
| buffer = kmalloc(64, GFP_KERNEL); |
| if (buffer) { |
| rc = pqi_scsi_inquiry(ctrl_info, device->scsi3addr, |
| VPD_PAGE | CISS_VPD_LV_DEVICE_GEOMETRY, buffer, 64); |
| if (rc == 0) { |
| raid_level = buffer[8]; |
| if (raid_level > SA_RAID_MAX) |
| raid_level = SA_RAID_UNKNOWN; |
| } |
| kfree(buffer); |
| } |
| |
| device->raid_level = raid_level; |
| } |
| |
| static int pqi_validate_raid_map(struct pqi_ctrl_info *ctrl_info, |
| struct pqi_scsi_dev *device, struct raid_map *raid_map) |
| { |
| char *err_msg; |
| u32 raid_map_size; |
| u32 r5or6_blocks_per_row; |
| |
| raid_map_size = get_unaligned_le32(&raid_map->structure_size); |
| |
| if (raid_map_size < offsetof(struct raid_map, disk_data)) { |
| err_msg = "RAID map too small"; |
| goto bad_raid_map; |
| } |
| |
| if (device->raid_level == SA_RAID_1) { |
| if (get_unaligned_le16(&raid_map->layout_map_count) != 2) { |
| err_msg = "invalid RAID-1 map"; |
| goto bad_raid_map; |
| } |
| } else if (device->raid_level == SA_RAID_TRIPLE) { |
| if (get_unaligned_le16(&raid_map->layout_map_count) != 3) { |
| err_msg = "invalid RAID-1(Triple) map"; |
| goto bad_raid_map; |
| } |
| } else if ((device->raid_level == SA_RAID_5 || |
| device->raid_level == SA_RAID_6) && |
| get_unaligned_le16(&raid_map->layout_map_count) > 1) { |
| /* RAID 50/60 */ |
| r5or6_blocks_per_row = |
| get_unaligned_le16(&raid_map->strip_size) * |
| get_unaligned_le16(&raid_map->data_disks_per_row); |
| if (r5or6_blocks_per_row == 0) { |
| err_msg = "invalid RAID-5 or RAID-6 map"; |
| goto bad_raid_map; |
| } |
| } |
| |
| return 0; |
| |
| bad_raid_map: |
| dev_warn(&ctrl_info->pci_dev->dev, |
| "logical device %08x%08x %s\n", |
| *((u32 *)&device->scsi3addr), |
| *((u32 *)&device->scsi3addr[4]), err_msg); |
| |
| return -EINVAL; |
| } |
| |
| static int pqi_get_raid_map(struct pqi_ctrl_info *ctrl_info, |
| struct pqi_scsi_dev *device) |
| { |
| int rc; |
| u32 raid_map_size; |
| struct raid_map *raid_map; |
| |
| raid_map = kmalloc(sizeof(*raid_map), GFP_KERNEL); |
| if (!raid_map) |
| return -ENOMEM; |
| |
| rc = pqi_send_scsi_raid_request(ctrl_info, CISS_GET_RAID_MAP, |
| device->scsi3addr, raid_map, sizeof(*raid_map), 0, NULL); |
| if (rc) |
| goto error; |
| |
| raid_map_size = get_unaligned_le32(&raid_map->structure_size); |
| |
| if (raid_map_size > sizeof(*raid_map)) { |
| |
| kfree(raid_map); |
| |
| raid_map = kmalloc(raid_map_size, GFP_KERNEL); |
| if (!raid_map) |
| return -ENOMEM; |
| |
| rc = pqi_send_scsi_raid_request(ctrl_info, CISS_GET_RAID_MAP, |
| device->scsi3addr, raid_map, raid_map_size, 0, NULL); |
| if (rc) |
| goto error; |
| |
| if (get_unaligned_le32(&raid_map->structure_size) |
| != raid_map_size) { |
| dev_warn(&ctrl_info->pci_dev->dev, |
| "requested %u bytes, received %u bytes\n", |
| raid_map_size, |
| get_unaligned_le32(&raid_map->structure_size)); |
| rc = -EINVAL; |
| goto error; |
| } |
| } |
| |
| rc = pqi_validate_raid_map(ctrl_info, device, raid_map); |
| if (rc) |
| goto error; |
| |
| device->raid_map = raid_map; |
| |
| return 0; |
| |
| error: |
| kfree(raid_map); |
| |
| return rc; |
| } |
| |
| static void pqi_set_max_transfer_encrypted(struct pqi_ctrl_info *ctrl_info, |
| struct pqi_scsi_dev *device) |
| { |
| if (!ctrl_info->lv_drive_type_mix_valid) { |
| device->max_transfer_encrypted = ~0; |
| return; |
| } |
| |
| switch (LV_GET_DRIVE_TYPE_MIX(device->scsi3addr)) { |
| case LV_DRIVE_TYPE_MIX_SAS_HDD_ONLY: |
| case LV_DRIVE_TYPE_MIX_SATA_HDD_ONLY: |
| case LV_DRIVE_TYPE_MIX_SAS_OR_SATA_SSD_ONLY: |
| case LV_DRIVE_TYPE_MIX_SAS_SSD_ONLY: |
| case LV_DRIVE_TYPE_MIX_SATA_SSD_ONLY: |
| case LV_DRIVE_TYPE_MIX_SAS_ONLY: |
| case LV_DRIVE_TYPE_MIX_SATA_ONLY: |
| device->max_transfer_encrypted = |
| ctrl_info->max_transfer_encrypted_sas_sata; |
| break; |
| case LV_DRIVE_TYPE_MIX_NVME_ONLY: |
| device->max_transfer_encrypted = |
| ctrl_info->max_transfer_encrypted_nvme; |
| break; |
| case LV_DRIVE_TYPE_MIX_UNKNOWN: |
| case LV_DRIVE_TYPE_MIX_NO_RESTRICTION: |
| default: |
| device->max_transfer_encrypted = |
| min(ctrl_info->max_transfer_encrypted_sas_sata, |
| ctrl_info->max_transfer_encrypted_nvme); |
| break; |
| } |
| } |
| |
| static void pqi_get_raid_bypass_status(struct pqi_ctrl_info *ctrl_info, |
| struct pqi_scsi_dev *device) |
| { |
| int rc; |
| u8 *buffer; |
| u8 bypass_status; |
| |
| buffer = kmalloc(64, GFP_KERNEL); |
| if (!buffer) |
| return; |
| |
| rc = pqi_scsi_inquiry(ctrl_info, device->scsi3addr, |
| VPD_PAGE | CISS_VPD_LV_BYPASS_STATUS, buffer, 64); |
| if (rc) |
| goto out; |
| |
| #define RAID_BYPASS_STATUS 4 |
| #define RAID_BYPASS_CONFIGURED 0x1 |
| #define RAID_BYPASS_ENABLED 0x2 |
| |
| bypass_status = buffer[RAID_BYPASS_STATUS]; |
| device->raid_bypass_configured = |
| (bypass_status & RAID_BYPASS_CONFIGURED) != 0; |
| if (device->raid_bypass_configured && |
| (bypass_status & RAID_BYPASS_ENABLED) && |
| pqi_get_raid_map(ctrl_info, device) == 0) { |
| device->raid_bypass_enabled = true; |
| if (get_unaligned_le16(&device->raid_map->flags) & |
| RAID_MAP_ENCRYPTION_ENABLED) |
| pqi_set_max_transfer_encrypted(ctrl_info, device); |
| } |
| |
| out: |
| kfree(buffer); |
| } |
| |
| /* |
| * Use vendor-specific VPD to determine online/offline status of a volume. |
| */ |
| |
| static void pqi_get_volume_status(struct pqi_ctrl_info *ctrl_info, |
| struct pqi_scsi_dev *device) |
| { |
| int rc; |
| size_t page_length; |
| u8 volume_status = CISS_LV_STATUS_UNAVAILABLE; |
| bool volume_offline = true; |
| u32 volume_flags; |
| struct ciss_vpd_logical_volume_status *vpd; |
| |
| vpd = kmalloc(sizeof(*vpd), GFP_KERNEL); |
| if (!vpd) |
| goto no_buffer; |
| |
| rc = pqi_scsi_inquiry(ctrl_info, device->scsi3addr, |
| VPD_PAGE | CISS_VPD_LV_STATUS, vpd, sizeof(*vpd)); |
| if (rc) |
| goto out; |
| |
| if (vpd->page_code != CISS_VPD_LV_STATUS) |
| goto out; |
| |
| page_length = offsetof(struct ciss_vpd_logical_volume_status, |
| volume_status) + vpd->page_length; |
| if (page_length < sizeof(*vpd)) |
| goto out; |
| |
| volume_status = vpd->volume_status; |
| volume_flags = get_unaligned_be32(&vpd->flags); |
| volume_offline = (volume_flags & CISS_LV_FLAGS_NO_HOST_IO) != 0; |
| |
| out: |
| kfree(vpd); |
| no_buffer: |
| device->volume_status = volume_status; |
| device->volume_offline = volume_offline; |
| } |
| |
| #define PQI_DEVICE_NCQ_PRIO_SUPPORTED 0x01 |
| #define PQI_DEVICE_PHY_MAP_SUPPORTED 0x10 |
| #define PQI_DEVICE_ERASE_IN_PROGRESS 0x10 |
| |
| static int pqi_get_physical_device_info(struct pqi_ctrl_info *ctrl_info, |
| struct pqi_scsi_dev *device, |
| struct bmic_identify_physical_device *id_phys) |
| { |
| int rc; |
| |
| memset(id_phys, 0, sizeof(*id_phys)); |
| |
| rc = pqi_identify_physical_device(ctrl_info, device, |
| id_phys, sizeof(*id_phys)); |
| if (rc) { |
| device->queue_depth = PQI_PHYSICAL_DISK_DEFAULT_MAX_QUEUE_DEPTH; |
| return rc; |
| } |
| |
| scsi_sanitize_inquiry_string(&id_phys->model[0], 8); |
| scsi_sanitize_inquiry_string(&id_phys->model[8], 16); |
| |
| memcpy(device->vendor, &id_phys->model[0], sizeof(device->vendor)); |
| memcpy(device->model, &id_phys->model[8], sizeof(device->model)); |
| |
| device->box_index = id_phys->box_index; |
| device->phys_box_on_bus = id_phys->phys_box_on_bus; |
| device->phy_connected_dev_type = id_phys->phy_connected_dev_type[0]; |
| device->queue_depth = |
| get_unaligned_le16(&id_phys->current_queue_depth_limit); |
| device->active_path_index = id_phys->active_path_number; |
| device->path_map = id_phys->redundant_path_present_map; |
| memcpy(&device->box, |
| &id_phys->alternate_paths_phys_box_on_port, |
| sizeof(device->box)); |
| memcpy(&device->phys_connector, |
| &id_phys->alternate_paths_phys_connector, |
| sizeof(device->phys_connector)); |
| device->bay = id_phys->phys_bay_in_box; |
| device->lun_count = id_phys->multi_lun_device_lun_count; |
| if ((id_phys->even_more_flags & PQI_DEVICE_PHY_MAP_SUPPORTED) && |
| id_phys->phy_count) |
| device->phy_id = |
| id_phys->phy_to_phy_map[device->active_path_index]; |
| else |
| device->phy_id = 0xFF; |
| |
| device->ncq_prio_support = |
| ((get_unaligned_le32(&id_phys->misc_drive_flags) >> 16) & |
| PQI_DEVICE_NCQ_PRIO_SUPPORTED); |
| |
| device->erase_in_progress = !!(get_unaligned_le16(&id_phys->extra_physical_drive_flags) & PQI_DEVICE_ERASE_IN_PROGRESS); |
| |
| return 0; |
| } |
| |
| static int pqi_get_logical_device_info(struct pqi_ctrl_info *ctrl_info, |
| struct pqi_scsi_dev *device) |
| { |
| int rc; |
| u8 *buffer; |
| |
| buffer = kmalloc(64, GFP_KERNEL); |
| if (!buffer) |
| return -ENOMEM; |
| |
| /* Send an inquiry to the device to see what it is. */ |
| rc = pqi_scsi_inquiry(ctrl_info, device->scsi3addr, 0, buffer, 64); |
| if (rc) |
| goto out; |
| |
| scsi_sanitize_inquiry_string(&buffer[8], 8); |
| scsi_sanitize_inquiry_string(&buffer[16], 16); |
| |
| device->devtype = buffer[0] & 0x1f; |
| memcpy(device->vendor, &buffer[8], sizeof(device->vendor)); |
| memcpy(device->model, &buffer[16], sizeof(device->model)); |
| |
| if (device->devtype == TYPE_DISK) { |
| if (device->is_external_raid_device) { |
| device->raid_level = SA_RAID_UNKNOWN; |
| device->volume_status = CISS_LV_OK; |
| device->volume_offline = false; |
| } else { |
| pqi_get_raid_level(ctrl_info, device); |
| pqi_get_raid_bypass_status(ctrl_info, device); |
| pqi_get_volume_status(ctrl_info, device); |
| } |
| } |
| |
| out: |
| kfree(buffer); |
| |
| return rc; |
| } |
| |
| /* |
| * Prevent adding drive to OS for some corner cases such as a drive |
| * undergoing a sanitize (erase) operation. Some OSes will continue to poll |
| * the drive until the sanitize completes, which can take hours, |
| * resulting in long bootup delays. Commands such as TUR, READ_CAP |
| * are allowed, but READ/WRITE cause check condition. So the OS |
| * cannot check/read the partition table. |
| * Note: devices that have completed sanitize must be re-enabled |
| * using the management utility. |
| */ |
| static inline bool pqi_keep_device_offline(struct pqi_scsi_dev *device) |
| { |
| return device->erase_in_progress; |
| } |
| |
| static int pqi_get_device_info_phys_logical(struct pqi_ctrl_info *ctrl_info, |
| struct pqi_scsi_dev *device, |
| struct bmic_identify_physical_device *id_phys) |
| { |
| int rc; |
| |
| if (device->is_expander_smp_device) |
| return 0; |
| |
| if (pqi_is_logical_device(device)) |
| rc = pqi_get_logical_device_info(ctrl_info, device); |
| else |
| rc = pqi_get_physical_device_info(ctrl_info, device, id_phys); |
| |
| return rc; |
| } |
| |
| static int pqi_get_device_info(struct pqi_ctrl_info *ctrl_info, |
| struct pqi_scsi_dev *device, |
| struct bmic_identify_physical_device *id_phys) |
| { |
| int rc; |
| |
| rc = pqi_get_device_info_phys_logical(ctrl_info, device, id_phys); |
| |
| if (rc == 0 && device->lun_count == 0) |
| device->lun_count = 1; |
| |
| return rc; |
| } |
| |
| static void pqi_show_volume_status(struct pqi_ctrl_info *ctrl_info, |
| struct pqi_scsi_dev *device) |
| { |
| char *status; |
| static const char unknown_state_str[] = |
| "Volume is in an unknown state (%u)"; |
| char unknown_state_buffer[sizeof(unknown_state_str) + 10]; |
| |
| switch (device->volume_status) { |
| case CISS_LV_OK: |
| status = "Volume online"; |
| break; |
| case CISS_LV_FAILED: |
| status = "Volume failed"; |
| break; |
| case CISS_LV_NOT_CONFIGURED: |
| status = "Volume not configured"; |
| break; |
| case CISS_LV_DEGRADED: |
| status = "Volume degraded"; |
| break; |
| case CISS_LV_READY_FOR_RECOVERY: |
| status = "Volume ready for recovery operation"; |
| break; |
| case CISS_LV_UNDERGOING_RECOVERY: |
| status = "Volume undergoing recovery"; |
| break; |
| case CISS_LV_WRONG_PHYSICAL_DRIVE_REPLACED: |
| status = "Wrong physical drive was replaced"; |
| break; |
| case CISS_LV_PHYSICAL_DRIVE_CONNECTION_PROBLEM: |
| status = "A physical drive not properly connected"; |
| break; |
| case CISS_LV_HARDWARE_OVERHEATING: |
| status = "Hardware is overheating"; |
| break; |
| case CISS_LV_HARDWARE_HAS_OVERHEATED: |
| status = "Hardware has overheated"; |
| break; |
| case CISS_LV_UNDERGOING_EXPANSION: |
| status = "Volume undergoing expansion"; |
| break; |
| case CISS_LV_NOT_AVAILABLE: |
| status = "Volume waiting for transforming volume"; |
| break; |
| case CISS_LV_QUEUED_FOR_EXPANSION: |
| status = "Volume queued for expansion"; |
| break; |
| case CISS_LV_DISABLED_SCSI_ID_CONFLICT: |
| status = "Volume disabled due to SCSI ID conflict"; |
| break; |
| case CISS_LV_EJECTED: |
| status = "Volume has been ejected"; |
| break; |
| case CISS_LV_UNDERGOING_ERASE: |
| status = "Volume undergoing background erase"; |
| break; |
| case CISS_LV_READY_FOR_PREDICTIVE_SPARE_REBUILD: |
| status = "Volume ready for predictive spare rebuild"; |
| break; |
| case CISS_LV_UNDERGOING_RPI: |
| status = "Volume undergoing rapid parity initialization"; |
| break; |
| case CISS_LV_PENDING_RPI: |
| status = "Volume queued for rapid parity initialization"; |
| break; |
| case CISS_LV_ENCRYPTED_NO_KEY: |
| status = "Encrypted volume inaccessible - key not present"; |
| break; |
| case CISS_LV_UNDERGOING_ENCRYPTION: |
| status = "Volume undergoing encryption process"; |
| break; |
| case CISS_LV_UNDERGOING_ENCRYPTION_REKEYING: |
| status = "Volume undergoing encryption re-keying process"; |
| break; |
| case CISS_LV_ENCRYPTED_IN_NON_ENCRYPTED_CONTROLLER: |
| status = "Volume encrypted but encryption is disabled"; |
| break; |
| case CISS_LV_PENDING_ENCRYPTION: |
| status = "Volume pending migration to encrypted state"; |
| break; |
| case CISS_LV_PENDING_ENCRYPTION_REKEYING: |
| status = "Volume pending encryption rekeying"; |
| break; |
| case CISS_LV_NOT_SUPPORTED: |
| status = "Volume not supported on this controller"; |
| break; |
| case CISS_LV_STATUS_UNAVAILABLE: |
| status = "Volume status not available"; |
| break; |
| default: |
| snprintf(unknown_state_buffer, sizeof(unknown_state_buffer), |
| unknown_state_str, device->volume_status); |
| status = unknown_state_buffer; |
| break; |
| } |
| |
| dev_info(&ctrl_info->pci_dev->dev, |
| "scsi %d:%d:%d:%d %s\n", |
| ctrl_info->scsi_host->host_no, |
| device->bus, device->target, device->lun, status); |
| } |
| |
| static void pqi_rescan_worker(struct work_struct *work) |
| { |
| struct pqi_ctrl_info *ctrl_info; |
| |
| ctrl_info = container_of(to_delayed_work(work), struct pqi_ctrl_info, |
| rescan_work); |
| |
| pqi_scan_scsi_devices(ctrl_info); |
| } |
| |
| static int pqi_add_device(struct pqi_ctrl_info *ctrl_info, |
| struct pqi_scsi_dev *device) |
| { |
| int rc; |
| |
| if (pqi_is_logical_device(device)) |
| rc = scsi_add_device(ctrl_info->scsi_host, device->bus, |
| device->target, device->lun); |
| else |
| rc = pqi_add_sas_device(ctrl_info->sas_host, device); |
| |
| return rc; |
| } |
| |
| #define PQI_REMOVE_DEVICE_PENDING_IO_TIMEOUT_MSECS (20 * 1000) |
| |
| static inline void pqi_remove_device(struct pqi_ctrl_info *ctrl_info, struct pqi_scsi_dev *device) |
| { |
| int rc; |
| int lun; |
| |
| for (lun = 0; lun < device->lun_count; lun++) { |
| rc = pqi_device_wait_for_pending_io(ctrl_info, device, lun, |
| PQI_REMOVE_DEVICE_PENDING_IO_TIMEOUT_MSECS); |
| if (rc) |
| dev_err(&ctrl_info->pci_dev->dev, |
| "scsi %d:%d:%d:%d removing device with %d outstanding command(s)\n", |
| ctrl_info->scsi_host->host_no, device->bus, |
| device->target, lun, |
| atomic_read(&device->scsi_cmds_outstanding[lun])); |
| } |
| |
| if (pqi_is_logical_device(device)) |
| scsi_remove_device(device->sdev); |
| else |
| pqi_remove_sas_device(device); |
| |
| pqi_device_remove_start(device); |
| } |
| |
| /* Assumes the SCSI device list lock is held. */ |
| |
| static struct pqi_scsi_dev *pqi_find_scsi_dev(struct pqi_ctrl_info *ctrl_info, |
| int bus, int target, int lun) |
| { |
| struct pqi_scsi_dev *device; |
| |
| list_for_each_entry(device, &ctrl_info->scsi_device_list, scsi_device_list_entry) |
| if (device->bus == bus && device->target == target && device->lun == lun) |
| return device; |
| |
| return NULL; |
| } |
| |
| static inline bool pqi_device_equal(struct pqi_scsi_dev *dev1, struct pqi_scsi_dev *dev2) |
| { |
| if (dev1->is_physical_device != dev2->is_physical_device) |
| return false; |
| |
| if (dev1->is_physical_device) |
| return memcmp(dev1->wwid, dev2->wwid, sizeof(dev1->wwid)) == 0; |
| |
| return memcmp(dev1->volume_id, dev2->volume_id, sizeof(dev1->volume_id)) == 0; |
| } |
| |
| enum pqi_find_result { |
| DEVICE_NOT_FOUND, |
| DEVICE_CHANGED, |
| DEVICE_SAME, |
| }; |
| |
| static enum pqi_find_result pqi_scsi_find_entry(struct pqi_ctrl_info *ctrl_info, |
| struct pqi_scsi_dev *device_to_find, struct pqi_scsi_dev **matching_device) |
| { |
| struct pqi_scsi_dev *device; |
| |
| list_for_each_entry(device, &ctrl_info->scsi_device_list, scsi_device_list_entry) { |
| if (pqi_scsi3addr_equal(device_to_find->scsi3addr, device->scsi3addr)) { |
| *matching_device = device; |
| if (pqi_device_equal(device_to_find, device)) { |
| if (device_to_find->volume_offline) |
| return DEVICE_CHANGED; |
| return DEVICE_SAME; |
| } |
| return DEVICE_CHANGED; |
| } |
| } |
| |
| return DEVICE_NOT_FOUND; |
| } |
| |
| static inline const char *pqi_device_type(struct pqi_scsi_dev *device) |
| { |
| if (device->is_expander_smp_device) |
| return "Enclosure SMP "; |
| |
| return scsi_device_type(device->devtype); |
| } |
| |
| #define PQI_DEV_INFO_BUFFER_LENGTH 128 |
| |
| static void pqi_dev_info(struct pqi_ctrl_info *ctrl_info, |
| char *action, struct pqi_scsi_dev *device) |
| { |
| ssize_t count; |
| char buffer[PQI_DEV_INFO_BUFFER_LENGTH]; |
| |
| count = scnprintf(buffer, PQI_DEV_INFO_BUFFER_LENGTH, |
| "%d:%d:", ctrl_info->scsi_host->host_no, device->bus); |
| |
| if (device->target_lun_valid) |
| count += scnprintf(buffer + count, |
| PQI_DEV_INFO_BUFFER_LENGTH - count, |
| "%d:%d", |
| device->target, |
| device->lun); |
| else |
| count += scnprintf(buffer + count, |
| PQI_DEV_INFO_BUFFER_LENGTH - count, |
| "-:-"); |
| |
| if (pqi_is_logical_device(device)) |
| count += scnprintf(buffer + count, |
| PQI_DEV_INFO_BUFFER_LENGTH - count, |
| " %08x%08x", |
| *((u32 *)&device->scsi3addr), |
| *((u32 *)&device->scsi3addr[4])); |
| else |
| count += scnprintf(buffer + count, |
| PQI_DEV_INFO_BUFFER_LENGTH - count, |
| " %016llx%016llx", |
| get_unaligned_be64(&device->wwid[0]), |
| get_unaligned_be64(&device->wwid[8])); |
| |
| count += scnprintf(buffer + count, PQI_DEV_INFO_BUFFER_LENGTH - count, |
| " %s %.8s %.16s ", |
| pqi_device_type(device), |
| device->vendor, |
| device->model); |
| |
| if (pqi_is_logical_device(device)) { |
| if (device->devtype == TYPE_DISK) |
| count += scnprintf(buffer + count, |
| PQI_DEV_INFO_BUFFER_LENGTH - count, |
| "SSDSmartPathCap%c En%c %-12s", |
| device->raid_bypass_configured ? '+' : '-', |
| device->raid_bypass_enabled ? '+' : '-', |
| pqi_raid_level_to_string(device->raid_level)); |
| } else { |
| count += scnprintf(buffer + count, |
| PQI_DEV_INFO_BUFFER_LENGTH - count, |
| "AIO%c", device->aio_enabled ? '+' : '-'); |
| if (device->devtype == TYPE_DISK || |
| device->devtype == TYPE_ZBC) |
| count += scnprintf(buffer + count, |
| PQI_DEV_INFO_BUFFER_LENGTH - count, |
| " qd=%-6d", device->queue_depth); |
| } |
| |
| dev_info(&ctrl_info->pci_dev->dev, "%s %s\n", action, buffer); |
| } |
| |
| static bool pqi_raid_maps_equal(struct raid_map *raid_map1, struct raid_map *raid_map2) |
| { |
| u32 raid_map1_size; |
| u32 raid_map2_size; |
| |
| if (raid_map1 == NULL || raid_map2 == NULL) |
| return raid_map1 == raid_map2; |
| |
| raid_map1_size = get_unaligned_le32(&raid_map1->structure_size); |
| raid_map2_size = get_unaligned_le32(&raid_map2->structure_size); |
| |
| if (raid_map1_size != raid_map2_size) |
| return false; |
| |
| return memcmp(raid_map1, raid_map2, raid_map1_size) == 0; |
| } |
| |
| /* Assumes the SCSI device list lock is held. */ |
| |
| static void pqi_scsi_update_device(struct pqi_ctrl_info *ctrl_info, |
| struct pqi_scsi_dev *existing_device, struct pqi_scsi_dev *new_device) |
| { |
| existing_device->device_type = new_device->device_type; |
| existing_device->bus = new_device->bus; |
| if (new_device->target_lun_valid) { |
| existing_device->target = new_device->target; |
| existing_device->lun = new_device->lun; |
| existing_device->target_lun_valid = true; |
| } |
| |
| /* By definition, the scsi3addr and wwid fields are already the same. */ |
| |
| existing_device->is_physical_device = new_device->is_physical_device; |
| memcpy(existing_device->vendor, new_device->vendor, sizeof(existing_device->vendor)); |
| memcpy(existing_device->model, new_device->model, sizeof(existing_device->model)); |
| existing_device->sas_address = new_device->sas_address; |
| existing_device->queue_depth = new_device->queue_depth; |
| existing_device->device_offline = false; |
| existing_device->lun_count = new_device->lun_count; |
| |
| if (pqi_is_logical_device(existing_device)) { |
| existing_device->is_external_raid_device = new_device->is_external_raid_device; |
| |
| if (existing_device->devtype == TYPE_DISK) { |
| existing_device->raid_level = new_device->raid_level; |
| existing_device->volume_status = new_device->volume_status; |
| memset(existing_device->next_bypass_group, 0, sizeof(existing_device->next_bypass_group)); |
| if (!pqi_raid_maps_equal(existing_device->raid_map, new_device->raid_map)) { |
| kfree(existing_device->raid_map); |
| existing_device->raid_map = new_device->raid_map; |
| /* To prevent this from being freed later. */ |
| new_device->raid_map = NULL; |
| } |
| existing_device->raid_bypass_configured = new_device->raid_bypass_configured; |
| existing_device->raid_bypass_enabled = new_device->raid_bypass_enabled; |
| } |
| } else { |
| existing_device->aio_enabled = new_device->aio_enabled; |
| existing_device->aio_handle = new_device->aio_handle; |
| existing_device->is_expander_smp_device = new_device->is_expander_smp_device; |
| existing_device->active_path_index = new_device->active_path_index; |
| existing_device->phy_id = new_device->phy_id; |
| existing_device->path_map = new_device->path_map; |
| existing_device->bay = new_device->bay; |
| existing_device->box_index = new_device->box_index; |
| existing_device->phys_box_on_bus = new_device->phys_box_on_bus; |
| existing_device->phy_connected_dev_type = new_device->phy_connected_dev_type; |
| memcpy(existing_device->box, new_device->box, sizeof(existing_device->box)); |
| memcpy(existing_device->phys_connector, new_device->phys_connector, sizeof(existing_device->phys_connector)); |
| } |
| } |
| |
| static inline void pqi_free_device(struct pqi_scsi_dev *device) |
| { |
| if (device) { |
| kfree(device->raid_map); |
| kfree(device); |
| } |
| } |
| |
| /* |
| * Called when exposing a new device to the OS fails in order to re-adjust |
| * our internal SCSI device list to match the SCSI ML's view. |
| */ |
| |
| static inline void pqi_fixup_botched_add(struct pqi_ctrl_info *ctrl_info, |
| struct pqi_scsi_dev *device) |
| { |
| unsigned long flags; |
| |
| spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags); |
| list_del(&device->scsi_device_list_entry); |
| spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); |
| |
| /* Allow the device structure to be freed later. */ |
| device->keep_device = false; |
| } |
| |
| static inline bool pqi_is_device_added(struct pqi_scsi_dev *device) |
| { |
| if (device->is_expander_smp_device) |
| return device->sas_port != NULL; |
| |
| return device->sdev != NULL; |
| } |
| |
| static inline void pqi_init_device_tmf_work(struct pqi_scsi_dev *device) |
| { |
| unsigned int lun; |
| struct pqi_tmf_work *tmf_work; |
| |
| for (lun = 0, tmf_work = device->tmf_work; lun < PQI_MAX_LUNS_PER_DEVICE; lun++, tmf_work++) |
| INIT_WORK(&tmf_work->work_struct, pqi_tmf_worker); |
| } |
| |
| static inline bool pqi_volume_rescan_needed(struct pqi_scsi_dev *device) |
| { |
| if (pqi_device_in_remove(device)) |
| return false; |
| |
| if (device->sdev == NULL) |
| return false; |
| |
| if (!scsi_device_online(device->sdev)) |
| return false; |
| |
| return device->rescan; |
| } |
| |
| static void pqi_update_device_list(struct pqi_ctrl_info *ctrl_info, |
| struct pqi_scsi_dev *new_device_list[], unsigned int num_new_devices) |
| { |
| int rc; |
| unsigned int i; |
| unsigned long flags; |
| enum pqi_find_result find_result; |
| struct pqi_scsi_dev *device; |
| struct pqi_scsi_dev *next; |
| struct pqi_scsi_dev *matching_device; |
| LIST_HEAD(add_list); |
| LIST_HEAD(delete_list); |
| |
| /* |
| * The idea here is to do as little work as possible while holding the |
| * spinlock. That's why we go to great pains to defer anything other |
| * than updating the internal device list until after we release the |
| * spinlock. |
| */ |
| |
| spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags); |
| |
| /* Assume that all devices in the existing list have gone away. */ |
| list_for_each_entry(device, &ctrl_info->scsi_device_list, scsi_device_list_entry) |
| device->device_gone = true; |
| |
| for (i = 0; i < num_new_devices; i++) { |
| device = new_device_list[i]; |
| |
| find_result = pqi_scsi_find_entry(ctrl_info, device, |
| &matching_device); |
| |
| switch (find_result) { |
| case DEVICE_SAME: |
| /* |
| * The newly found device is already in the existing |
| * device list. |
| */ |
| device->new_device = false; |
| matching_device->device_gone = false; |
| pqi_scsi_update_device(ctrl_info, matching_device, device); |
| break; |
| case DEVICE_NOT_FOUND: |
| /* |
| * The newly found device is NOT in the existing device |
| * list. |
| */ |
| device->new_device = true; |
| break; |
| case DEVICE_CHANGED: |
| /* |
| * The original device has gone away and we need to add |
| * the new device. |
| */ |
| device->new_device = true; |
| break; |
| } |
| } |
| |
| /* Process all devices that have gone away. */ |
| list_for_each_entry_safe(device, next, &ctrl_info->scsi_device_list, |
| scsi_device_list_entry) { |
| if (device->device_gone) { |
| list_del(&device->scsi_device_list_entry); |
| list_add_tail(&device->delete_list_entry, &delete_list); |
| } |
| } |
| |
| /* Process all new devices. */ |
| for (i = 0; i < num_new_devices; i++) { |
| device = new_device_list[i]; |
| if (!device->new_device) |
| continue; |
| if (device->volume_offline) |
| continue; |
| list_add_tail(&device->scsi_device_list_entry, |
| &ctrl_info->scsi_device_list); |
| list_add_tail(&device->add_list_entry, &add_list); |
| /* To prevent this device structure from being freed later. */ |
| device->keep_device = true; |
| pqi_init_device_tmf_work(device); |
| } |
| |
| spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); |
| |
| /* |
| * If OFA is in progress and there are devices that need to be deleted, |
| * allow any pending reset operations to continue and unblock any SCSI |
| * requests before removal. |
| */ |
| if (pqi_ofa_in_progress(ctrl_info)) { |
| list_for_each_entry_safe(device, next, &delete_list, delete_list_entry) |
| if (pqi_is_device_added(device)) |
| pqi_device_remove_start(device); |
| pqi_ctrl_unblock_device_reset(ctrl_info); |
| pqi_scsi_unblock_requests(ctrl_info); |
| } |
| |
| /* Remove all devices that have gone away. */ |
| list_for_each_entry_safe(device, next, &delete_list, delete_list_entry) { |
| if (device->volume_offline) { |
| pqi_dev_info(ctrl_info, "offline", device); |
| pqi_show_volume_status(ctrl_info, device); |
| } else { |
| pqi_dev_info(ctrl_info, "removed", device); |
| } |
| if (pqi_is_device_added(device)) |
| pqi_remove_device(ctrl_info, device); |
| list_del(&device->delete_list_entry); |
| pqi_free_device(device); |
| } |
| |
| /* |
| * Notify the SML of any existing device changes such as; |
| * queue depth, device size. |
| */ |
| list_for_each_entry(device, &ctrl_info->scsi_device_list, scsi_device_list_entry) { |
| if (device->sdev && device->queue_depth != device->advertised_queue_depth) { |
| device->advertised_queue_depth = device->queue_depth; |
| scsi_change_queue_depth(device->sdev, device->advertised_queue_depth); |
| spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags); |
| if (pqi_volume_rescan_needed(device)) { |
| device->rescan = false; |
| spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); |
| scsi_rescan_device(device->sdev); |
| } else { |
| spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); |
| } |
| } |
| } |
| |
| /* Expose any new devices. */ |
| list_for_each_entry_safe(device, next, &add_list, add_list_entry) { |
| if (!pqi_is_device_added(device)) { |
| rc = pqi_add_device(ctrl_info, device); |
| if (rc == 0) { |
| pqi_dev_info(ctrl_info, "added", device); |
| } else { |
| dev_warn(&ctrl_info->pci_dev->dev, |
| "scsi %d:%d:%d:%d addition failed, device not added\n", |
| ctrl_info->scsi_host->host_no, |
| device->bus, device->target, |
| device->lun); |
| pqi_fixup_botched_add(ctrl_info, device); |
| } |
| } |
| } |
| |
| } |
| |
| static inline bool pqi_is_supported_device(struct pqi_scsi_dev *device) |
| { |
| /* |
| * Only support the HBA controller itself as a RAID |
| * controller. If it's a RAID controller other than |
| * the HBA itself (an external RAID controller, for |
| * example), we don't support it. |
| */ |
| if (device->device_type == SA_DEVICE_TYPE_CONTROLLER && |
| !pqi_is_hba_lunid(device->scsi3addr)) |
| return false; |
| |
| return true; |
| } |
| |
| static inline bool pqi_skip_device(u8 *scsi3addr) |
| { |
| /* Ignore all masked devices. */ |
| if (MASKED_DEVICE(scsi3addr)) |
| return true; |
| |
| return false; |
| } |
| |
| static inline void pqi_mask_device(u8 *scsi3addr) |
| { |
| scsi3addr[3] |= 0xc0; |
| } |
| |
| static inline bool pqi_is_multipath_device(struct pqi_scsi_dev *device) |
| { |
| if (pqi_is_logical_device(device)) |
| return false; |
| |
| return (device->path_map & (device->path_map - 1)) != 0; |
| } |
| |
| static inline bool pqi_expose_device(struct pqi_scsi_dev *device) |
| { |
| return !device->is_physical_device || !pqi_skip_device(device->scsi3addr); |
| } |
| |
| static int pqi_update_scsi_devices(struct pqi_ctrl_info *ctrl_info) |
| { |
| int i; |
| int rc; |
| LIST_HEAD(new_device_list_head); |
| struct report_phys_lun_16byte_wwid_list *physdev_list = NULL; |
| struct report_log_lun_list *logdev_list = NULL; |
| struct report_phys_lun_16byte_wwid *phys_lun; |
| struct report_log_lun *log_lun; |
| struct bmic_identify_physical_device *id_phys = NULL; |
| u32 num_physicals; |
| u32 num_logicals; |
| struct pqi_scsi_dev **new_device_list = NULL; |
| struct pqi_scsi_dev *device; |
| struct pqi_scsi_dev *next; |
| unsigned int num_new_devices; |
| unsigned int num_valid_devices; |
| bool is_physical_device; |
| u8 *scsi3addr; |
| unsigned int physical_index; |
| unsigned int logical_index; |
| static char *out_of_memory_msg = |
| "failed to allocate memory, device discovery stopped"; |
| |
| rc = pqi_get_device_lists(ctrl_info, &physdev_list, &logdev_list); |
| if (rc) |
| goto out; |
| |
| if (physdev_list) |
| num_physicals = |
| get_unaligned_be32(&physdev_list->header.list_length) |
| / sizeof(physdev_list->lun_entries[0]); |
| else |
| num_physicals = 0; |
| |
| if (logdev_list) |
| num_logicals = |
| get_unaligned_be32(&logdev_list->header.list_length) |
| / sizeof(logdev_list->lun_entries[0]); |
| else |
| num_logicals = 0; |
| |
| if (num_physicals) { |
| /* |
| * We need this buffer for calls to pqi_get_physical_disk_info() |
| * below. We allocate it here instead of inside |
| * pqi_get_physical_disk_info() because it's a fairly large |
| * buffer. |
| */ |
| id_phys = kmalloc(sizeof(*id_phys), GFP_KERNEL); |
| if (!id_phys) { |
| dev_warn(&ctrl_info->pci_dev->dev, "%s\n", |
| out_of_memory_msg); |
| rc = -ENOMEM; |
| goto out; |
| } |
| |
| if (pqi_hide_vsep) { |
| for (i = num_physicals - 1; i >= 0; i--) { |
| phys_lun = &physdev_list->lun_entries[i]; |
| if (CISS_GET_DRIVE_NUMBER(phys_lun->lunid) == PQI_VSEP_CISS_BTL) { |
| pqi_mask_device(phys_lun->lunid); |
| break; |
| } |
| } |
| } |
| } |
| |
| if (num_logicals && |
| (logdev_list->header.flags & CISS_REPORT_LOG_FLAG_DRIVE_TYPE_MIX)) |
| ctrl_info->lv_drive_type_mix_valid = true; |
| |
| num_new_devices = num_physicals + num_logicals; |
| |
| new_device_list = kmalloc_array(num_new_devices, |
| sizeof(*new_device_list), |
| GFP_KERNEL); |
| if (!new_device_list) { |
| dev_warn(&ctrl_info->pci_dev->dev, "%s\n", out_of_memory_msg); |
| rc = -ENOMEM; |
| goto out; |
| } |
| |
| for (i = 0; i < num_new_devices; i++) { |
| device = kzalloc(sizeof(*device), GFP_KERNEL); |
| if (!device) { |
| dev_warn(&ctrl_info->pci_dev->dev, "%s\n", |
| out_of_memory_msg); |
| rc = -ENOMEM; |
| goto out; |
| } |
| list_add_tail(&device->new_device_list_entry, |
| &new_device_list_head); |
| } |
| |
| device = NULL; |
| num_valid_devices = 0; |
| physical_index = 0; |
| logical_index = 0; |
| |
| for (i = 0; i < num_new_devices; i++) { |
| |
| if ((!pqi_expose_ld_first && i < num_physicals) || |
| (pqi_expose_ld_first && i >= num_logicals)) { |
| is_physical_device = true; |
| phys_lun = &physdev_list->lun_entries[physical_index++]; |
| log_lun = NULL; |
| scsi3addr = phys_lun->lunid; |
| } else { |
| is_physical_device = false; |
| phys_lun = NULL; |
| log_lun = &logdev_list->lun_entries[logical_index++]; |
| scsi3addr = log_lun->lunid; |
| } |
| |
| if (is_physical_device && pqi_skip_device(scsi3addr)) |
| continue; |
| |
| if (device) |
| device = list_next_entry(device, new_device_list_entry); |
| else |
| device = list_first_entry(&new_device_list_head, |
| struct pqi_scsi_dev, new_device_list_entry); |
| |
| memcpy(device->scsi3addr, scsi3addr, sizeof(device->scsi3addr)); |
| device->is_physical_device = is_physical_device; |
| if (is_physical_device) { |
| device->device_type = phys_lun->device_type; |
| if (device->device_type == SA_DEVICE_TYPE_EXPANDER_SMP) |
| device->is_expander_smp_device = true; |
| } else { |
| device->is_external_raid_device = |
| pqi_is_external_raid_addr(scsi3addr); |
| } |
| |
| if (!pqi_is_supported_device(device)) |
| continue; |
| |
| /* Gather information about the device. */ |
| rc = pqi_get_device_info(ctrl_info, device, id_phys); |
| if (rc == -ENOMEM) { |
| dev_warn(&ctrl_info->pci_dev->dev, "%s\n", |
| out_of_memory_msg); |
| goto out; |
| } |
| if (rc) { |
| if (device->is_physical_device) |
| dev_warn(&ctrl_info->pci_dev->dev, |
| "obtaining device info failed, skipping physical device %016llx%016llx\n", |
| get_unaligned_be64(&phys_lun->wwid[0]), |
| get_unaligned_be64(&phys_lun->wwid[8])); |
| else |
| dev_warn(&ctrl_info->pci_dev->dev, |
| "obtaining device info failed, skipping logical device %08x%08x\n", |
| *((u32 *)&device->scsi3addr), |
| *((u32 *)&device->scsi3addr[4])); |
| rc = 0; |
| continue; |
| } |
| |
| /* Do not present disks that the OS cannot fully probe. */ |
| if (pqi_keep_device_offline(device)) |
| continue; |
| |
| pqi_assign_bus_target_lun(device); |
| |
| if (device->is_physical_device) { |
| memcpy(device->wwid, phys_lun->wwid, sizeof(device->wwid)); |
| if ((phys_lun->device_flags & |
| CISS_REPORT_PHYS_DEV_FLAG_AIO_ENABLED) && |
| phys_lun->aio_handle) { |
| device->aio_enabled = true; |
| device->aio_handle = |
| phys_lun->aio_handle; |
| } |
| } else { |
| memcpy(device->volume_id, log_lun->volume_id, |
| sizeof(device->volume_id)); |
| } |
| |
| device->sas_address = get_unaligned_be64(&device->wwid[0]); |
| |
| new_device_list[num_valid_devices++] = device; |
| } |
| |
| pqi_update_device_list(ctrl_info, new_device_list, num_valid_devices); |
| |
| out: |
| list_for_each_entry_safe(device, next, &new_device_list_head, |
| new_device_list_entry) { |
| if (device->keep_device) |
| continue; |
| list_del(&device->new_device_list_entry); |
| pqi_free_device(device); |
| } |
| |
| kfree(new_device_list); |
| kfree(physdev_list); |
| kfree(logdev_list); |
| kfree(id_phys); |
| |
| return rc; |
| } |
| |
| static int pqi_scan_scsi_devices(struct pqi_ctrl_info *ctrl_info) |
| { |
| int rc; |
| int mutex_acquired; |
| |
| if (pqi_ctrl_offline(ctrl_info)) |
| return -ENXIO; |
| |
| mutex_acquired = mutex_trylock(&ctrl_info->scan_mutex); |
| |
| if (!mutex_acquired) { |
| if (pqi_ctrl_scan_blocked(ctrl_info)) |
| return -EBUSY; |
| pqi_schedule_rescan_worker_delayed(ctrl_info); |
| return -EINPROGRESS; |
| } |
| |
| rc = pqi_update_scsi_devices(ctrl_info); |
| if (rc && !pqi_ctrl_scan_blocked(ctrl_info)) |
| pqi_schedule_rescan_worker_delayed(ctrl_info); |
| |
| mutex_unlock(&ctrl_info->scan_mutex); |
| |
| return rc; |
| } |
| |
| static void pqi_scan_start(struct Scsi_Host *shost) |
| { |
| struct pqi_ctrl_info *ctrl_info; |
| |
| ctrl_info = shost_to_hba(shost); |
| |
| pqi_scan_scsi_devices(ctrl_info); |
| } |
| |
| /* Returns TRUE if scan is finished. */ |
| |
| static int pqi_scan_finished(struct Scsi_Host *shost, |
| unsigned long elapsed_time) |
| { |
| struct pqi_ctrl_info *ctrl_info; |
| |
| ctrl_info = shost_priv(shost); |
| |
| return !mutex_is_locked(&ctrl_info->scan_mutex); |
| } |
| |
| static inline void pqi_set_encryption_info(struct pqi_encryption_info *encryption_info, |
| struct raid_map *raid_map, u64 first_block) |
| { |
| u32 volume_blk_size; |
| |
| /* |
| * Set the encryption tweak values based on logical block address. |
| * If the block size is 512, the tweak value is equal to the LBA. |
| * For other block sizes, tweak value is (LBA * block size) / 512. |
| */ |
| volume_blk_size = get_unaligned_le32(&raid_map->volume_blk_size); |
| if (volume_blk_size != 512) |
| first_block = (first_block * volume_blk_size) / 512; |
| |
| encryption_info->data_encryption_key_index = |
| get_unaligned_le16(&raid_map->data_encryption_key_index); |
| encryption_info->encrypt_tweak_lower = lower_32_bits(first_block); |
| encryption_info->encrypt_tweak_upper = upper_32_bits(first_block); |
| } |
| |
| /* |
| * Attempt to perform RAID bypass mapping for a logical volume I/O. |
| */ |
| |
| static bool pqi_aio_raid_level_supported(struct pqi_ctrl_info *ctrl_info, |
| struct pqi_scsi_dev_raid_map_data *rmd) |
| { |
| bool is_supported = true; |
| |
| switch (rmd->raid_level) { |
| case SA_RAID_0: |
| break; |
| case SA_RAID_1: |
| if (rmd->is_write && (!ctrl_info->enable_r1_writes || |
| rmd->data_length > ctrl_info->max_write_raid_1_10_2drive)) |
| is_supported = false; |
| break; |
| case SA_RAID_TRIPLE: |
| if (rmd->is_write && (!ctrl_info->enable_r1_writes || |
| rmd->data_length > ctrl_info->max_write_raid_1_10_3drive)) |
| is_supported = false; |
| break; |
| case SA_RAID_5: |
| if (rmd->is_write && (!ctrl_info->enable_r5_writes || |
| rmd->data_length > ctrl_info->max_write_raid_5_6)) |
| is_supported = false; |
| break; |
| case SA_RAID_6: |
| if (rmd->is_write && (!ctrl_info->enable_r6_writes || |
| rmd->data_length > ctrl_info->max_write_raid_5_6)) |
| is_supported = false; |
| break; |
| default: |
| is_supported = false; |
| break; |
| } |
| |
| return is_supported; |
| } |
| |
| #define PQI_RAID_BYPASS_INELIGIBLE 1 |
| |
| static int pqi_get_aio_lba_and_block_count(struct scsi_cmnd *scmd, |
| struct pqi_scsi_dev_raid_map_data *rmd) |
| { |
| /* Check for valid opcode, get LBA and block count. */ |
| switch (scmd->cmnd[0]) { |
| case WRITE_6: |
| rmd->is_write = true; |
| fallthrough; |
| case READ_6: |
| rmd->first_block = (u64)(((scmd->cmnd[1] & 0x1f) << 16) | |
| (scmd->cmnd[2] << 8) | scmd->cmnd[3]); |
| rmd->block_cnt = (u32)scmd->cmnd[4]; |
| if (rmd->block_cnt == 0) |
| rmd->block_cnt = 256; |
| break; |
| case WRITE_10: |
| rmd->is_write = true; |
| fallthrough; |
| case READ_10: |
| rmd->first_block = (u64)get_unaligned_be32(&scmd->cmnd[2]); |
| rmd->block_cnt = (u32)get_unaligned_be16(&scmd->cmnd[7]); |
| break; |
| case WRITE_12: |
| rmd->is_write = true; |
| fallthrough; |
| case READ_12: |
| rmd->first_block = (u64)get_unaligned_be32(&scmd->cmnd[2]); |
| rmd->block_cnt = get_unaligned_be32(&scmd->cmnd[6]); |
| break; |
| case WRITE_16: |
| rmd->is_write = true; |
| fallthrough; |
| case READ_16: |
| rmd->first_block = get_unaligned_be64(&scmd->cmnd[2]); |
| rmd->block_cnt = get_unaligned_be32(&scmd->cmnd[10]); |
| break; |
| default: |
| /* Process via normal I/O path. */ |
| return PQI_RAID_BYPASS_INELIGIBLE; |
| } |
| |
| put_unaligned_le32(scsi_bufflen(scmd), &rmd->data_length); |
| |
| return 0; |
| } |
| |
| static int pci_get_aio_common_raid_map_values(struct pqi_ctrl_info *ctrl_info, |
| struct pqi_scsi_dev_raid_map_data *rmd, struct raid_map *raid_map) |
| { |
| #if BITS_PER_LONG == 32 |
| u64 tmpdiv; |
| #endif |
| |
| rmd->last_block = rmd->first_block + rmd->block_cnt - 1; |
| |
| /* Check for invalid block or wraparound. */ |
| if (rmd->last_block >= |
| get_unaligned_le64(&raid_map->volume_blk_cnt) || |
| rmd->last_block < rmd->first_block) |
| return PQI_RAID_BYPASS_INELIGIBLE; |
| |
| rmd->data_disks_per_row = |
| get_unaligned_le16(&raid_map->data_disks_per_row); |
| rmd->strip_size = get_unaligned_le16(&raid_map->strip_size); |
| rmd->layout_map_count = get_unaligned_le16(&raid_map->layout_map_count); |
| |
| /* Calculate stripe information for the request. */ |
| rmd->blocks_per_row = rmd->data_disks_per_row * rmd->strip_size; |
| if (rmd->blocks_per_row == 0) /* Used as a divisor in many calculations */ |
| return PQI_RAID_BYPASS_INELIGIBLE; |
| #if BITS_PER_LONG == 32 |
| tmpdiv = rmd->first_block; |
| do_div(tmpdiv, rmd->blocks_per_row); |
| rmd->first_row = tmpdiv; |
| tmpdiv = rmd->last_block; |
| do_div(tmpdiv, rmd->blocks_per_row); |
| rmd->last_row = tmpdiv; |
| rmd->first_row_offset = (u32)(rmd->first_block - (rmd->first_row * rmd->blocks_per_row)); |
| rmd->last_row_offset = (u32)(rmd->last_block - (rmd->last_row * rmd->blocks_per_row)); |
| tmpdiv = rmd->first_row_offset; |
| do_div(tmpdiv, rmd->strip_size); |
| rmd->first_column = tmpdiv; |
| tmpdiv = rmd->last_row_offset; |
| do_div(tmpdiv, rmd->strip_size); |
| rmd->last_column = tmpdiv; |
| #else |
| rmd->first_row = rmd->first_block / rmd->blocks_per_row; |
| rmd->last_row = rmd->last_block / rmd->blocks_per_row; |
| rmd->first_row_offset = (u32)(rmd->first_block - |
| (rmd->first_row * rmd->blocks_per_row)); |
| rmd->last_row_offset = (u32)(rmd->last_block - (rmd->last_row * |
| rmd->blocks_per_row)); |
| rmd->first_column = rmd->first_row_offset / rmd->strip_size; |
| rmd->last_column = rmd->last_row_offset / rmd->strip_size; |
| #endif |
| |
| /* If this isn't a single row/column then give to the controller. */ |
| if (rmd->first_row != rmd->last_row || |
| rmd->first_column != rmd->last_column) |
| return PQI_RAID_BYPASS_INELIGIBLE; |
| |
| /* Proceeding with driver mapping. */ |
| rmd->total_disks_per_row = rmd->data_disks_per_row + |
| get_unaligned_le16(&raid_map->metadata_disks_per_row); |
| rmd->map_row = ((u32)(rmd->first_row >> |
| raid_map->parity_rotation_shift)) % |
| get_unaligned_le16(&raid_map->row_cnt); |
| rmd->map_index = (rmd->map_row * rmd->total_disks_per_row) + |
| rmd->first_column; |
| |
| return 0; |
| } |
| |
| static int pqi_calc_aio_r5_or_r6(struct pqi_scsi_dev_raid_map_data *rmd, |
| struct raid_map *raid_map) |
| { |
| #if BITS_PER_LONG == 32 |
| u64 tmpdiv; |
| #endif |
| |
| if (rmd->blocks_per_row == 0) /* Used as a divisor in many calculations */ |
| return PQI_RAID_BYPASS_INELIGIBLE; |
| |
| /* RAID 50/60 */ |
| /* Verify first and last block are in same RAID group. */ |
| rmd->stripesize = rmd->blocks_per_row * rmd->layout_map_count; |
| #if BITS_PER_LONG == 32 |
| tmpdiv = rmd->first_block; |
| rmd->first_group = do_div(tmpdiv, rmd->stripesize); |
| tmpdiv = rmd->first_group; |
| do_div(tmpdiv, rmd->blocks_per_row); |
| rmd->first_group = tmpdiv; |
| tmpdiv = rmd->last_block; |
| rmd->last_group = do_div(tmpdiv, rmd->stripesize); |
| tmpdiv = rmd->last_group; |
| do_div(tmpdiv, rmd->blocks_per_row); |
| rmd->last_group = tmpdiv; |
| #else |
| rmd->first_group = (rmd->first_block % rmd->stripesize) / rmd->blocks_per_row; |
| rmd->last_group = (rmd->last_block % rmd->stripesize) / rmd->blocks_per_row; |
| #endif |
| if (rmd->first_group != rmd->last_group) |
| return PQI_RAID_BYPASS_INELIGIBLE; |
| |
| /* Verify request is in a single row of RAID 5/6. */ |
| #if BITS_PER_LONG == 32 |
| tmpdiv = rmd->first_block; |
| do_div(tmpdiv, rmd->stripesize); |
| rmd->first_row = tmpdiv; |
| rmd->r5or6_first_row = tmpdiv; |
| tmpdiv = rmd->last_block; |
| do_div(tmpdiv, rmd->stripesize); |
| rmd->r5or6_last_row = tmpdiv; |
| #else |
| rmd->first_row = rmd->r5or6_first_row = |
| rmd->first_block / rmd->stripesize; |
| rmd->r5or6_last_row = rmd->last_block / rmd->stripesize; |
| #endif |
| if (rmd->r5or6_first_row != rmd->r5or6_last_row) |
| return PQI_RAID_BYPASS_INELIGIBLE; |
| |
| /* Verify request is in a single column. */ |
| #if BITS_PER_LONG == 32 |
| tmpdiv = rmd->first_block; |
| rmd->first_row_offset = do_div(tmpdiv, rmd->stripesize); |
| tmpdiv = rmd->first_row_offset; |
| rmd->first_row_offset = (u32)do_div(tmpdiv, rmd->blocks_per_row); |
| rmd->r5or6_first_row_offset = rmd->first_row_offset; |
| tmpdiv = rmd->last_block; |
| rmd->r5or6_last_row_offset = do_div(tmpdiv, rmd->stripesize); |
| tmpdiv = rmd->r5or6_last_row_offset; |
| rmd->r5or6_last_row_offset = do_div(tmpdiv, rmd->blocks_per_row); |
| tmpdiv = rmd->r5or6_first_row_offset; |
| do_div(tmpdiv, rmd->strip_size); |
| rmd->first_column = rmd->r5or6_first_column = tmpdiv; |
| tmpdiv = rmd->r5or6_last_row_offset; |
| do_div(tmpdiv, rmd->strip_size); |
| rmd->r5or6_last_column = tmpdiv; |
| #else |
| rmd->first_row_offset = rmd->r5or6_first_row_offset = |
| (u32)((rmd->first_block % rmd->stripesize) % |
| rmd->blocks_per_row); |
| |
| rmd->r5or6_last_row_offset = |
| (u32)((rmd->last_block % rmd->stripesize) % |
| rmd->blocks_per_row); |
| |
| rmd->first_column = |
| rmd->r5or6_first_row_offset / rmd->strip_size; |
| rmd->r5or6_first_column = rmd->first_column; |
| rmd->r5or6_last_column = rmd->r5or6_last_row_offset / rmd->strip_size; |
| #endif |
| if (rmd->r5or6_first_column != rmd->r5or6_last_column) |
| return PQI_RAID_BYPASS_INELIGIBLE; |
| |
| /* Request is eligible. */ |
| rmd->map_row = |
| ((u32)(rmd->first_row >> raid_map->parity_rotation_shift)) % |
| get_unaligned_le16(&raid_map->row_cnt); |
| |
| rmd->map_index = (rmd->first_group * |
| (get_unaligned_le16(&raid_map->row_cnt) * |
| rmd->total_disks_per_row)) + |
| (rmd->map_row * rmd->total_disks_per_row) + rmd->first_column; |
| |
| if (rmd->is_write) { |
| u32 index; |
| |
| /* |
| * p_parity_it_nexus and q_parity_it_nexus are pointers to the |
| * parity entries inside the device's raid_map. |
| * |
| * A device's RAID map is bounded by: number of RAID disks squared. |
| * |
| * The devices RAID map size is checked during device |
| * initialization. |
| */ |
| index = DIV_ROUND_UP(rmd->map_index + 1, rmd->total_disks_per_row); |
| index *= rmd->total_disks_per_row; |
| index -= get_unaligned_le16(&raid_map->metadata_disks_per_row); |
| |
| rmd->p_parity_it_nexus = raid_map->disk_data[index].aio_handle; |
| if (rmd->raid_level == SA_RAID_6) { |
| rmd->q_parity_it_nexus = raid_map->disk_data[index + 1].aio_handle; |
| rmd->xor_mult = raid_map->disk_data[rmd->map_index].xor_mult[1]; |
| } |
| #if BITS_PER_LONG == 32 |
| tmpdiv = rmd->first_block; |
| do_div(tmpdiv, rmd->blocks_per_row); |
| rmd->row = tmpdiv; |
| #else |
| rmd->row = rmd->first_block / rmd->blocks_per_row; |
| #endif |
| } |
| |
| return 0; |
| } |
| |
| static void pqi_set_aio_cdb(struct pqi_scsi_dev_raid_map_data *rmd) |
| { |
| /* Build the new CDB for the physical disk I/O. */ |
| if (rmd->disk_block > 0xffffffff) { |
| rmd->cdb[0] = rmd->is_write ? WRITE_16 : READ_16; |
| rmd->cdb[1] = 0; |
| put_unaligned_be64(rmd->disk_block, &rmd->cdb[2]); |
| put_unaligned_be32(rmd->disk_block_cnt, &rmd->cdb[10]); |
| rmd->cdb[14] = 0; |
| rmd->cdb[15] = 0; |
| rmd->cdb_length = 16; |
| } else { |
| rmd->cdb[0] = rmd->is_write ? WRITE_10 : READ_10; |
| rmd->cdb[1] = 0; |
| put_unaligned_be32((u32)rmd->disk_block, &rmd->cdb[2]); |
| rmd->cdb[6] = 0; |
| put_unaligned_be16((u16)rmd->disk_block_cnt, &rmd->cdb[7]); |
| rmd->cdb[9] = 0; |
| rmd->cdb_length = 10; |
| } |
| } |
| |
| static void pqi_calc_aio_r1_nexus(struct raid_map *raid_map, |
| struct pqi_scsi_dev_raid_map_data *rmd) |
| { |
| u32 index; |
| u32 group; |
| |
| group = rmd->map_index / rmd->data_disks_per_row; |
| |
| index = rmd->map_index - (group * rmd->data_disks_per_row); |
| rmd->it_nexus[0] = raid_map->disk_data[index].aio_handle; |
| index += rmd->data_disks_per_row; |
| rmd->it_nexus[1] = raid_map->disk_data[index].aio_handle; |
| if (rmd->layout_map_count > 2) { |
| index += rmd->data_disks_per_row; |
| rmd->it_nexus[2] = raid_map->disk_data[index].aio_handle; |
| } |
| |
| rmd->num_it_nexus_entries = rmd->layout_map_count; |
| } |
| |
| static int pqi_raid_bypass_submit_scsi_cmd(struct pqi_ctrl_info *ctrl_info, |
| struct pqi_scsi_dev *device, struct scsi_cmnd *scmd, |
| struct pqi_queue_group *queue_group) |
| { |
| int rc; |
| struct raid_map *raid_map; |
| u32 group; |
| u32 next_bypass_group; |
| struct pqi_encryption_info *encryption_info_ptr; |
| struct pqi_encryption_info encryption_info; |
| struct pqi_scsi_dev_raid_map_data rmd = { 0 }; |
| |
| rc = pqi_get_aio_lba_and_block_count(scmd, &rmd); |
| if (rc) |
| return PQI_RAID_BYPASS_INELIGIBLE; |
| |
| rmd.raid_level = device->raid_level; |
| |
| if (!pqi_aio_raid_level_supported(ctrl_info, &rmd)) |
| return PQI_RAID_BYPASS_INELIGIBLE; |
| |
| if (unlikely(rmd.block_cnt == 0)) |
| return PQI_RAID_BYPASS_INELIGIBLE; |
| |
| raid_map = device->raid_map; |
| |
| rc = pci_get_aio_common_raid_map_values(ctrl_info, &rmd, raid_map); |
| if (rc) |
| return PQI_RAID_BYPASS_INELIGIBLE; |
| |
| if (device->raid_level == SA_RAID_1 || |
| device->raid_level == SA_RAID_TRIPLE) { |
| if (rmd.is_write) { |
| pqi_calc_aio_r1_nexus(raid_map, &rmd); |
| } else { |
| group = device->next_bypass_group[rmd.map_index]; |
| next_bypass_group = group + 1; |
| if (next_bypass_group >= rmd.layout_map_count) |
| next_bypass_group = 0; |
| device->next_bypass_group[rmd.map_index] = next_bypass_group; |
| rmd.map_index += group * rmd.data_disks_per_row; |
| } |
| } else if ((device->raid_level == SA_RAID_5 || |
| device->raid_level == SA_RAID_6) && |
| (rmd.layout_map_count > 1 || rmd.is_write)) { |
| rc = pqi_calc_aio_r5_or_r6(&rmd, raid_map); |
| if (rc) |
| return PQI_RAID_BYPASS_INELIGIBLE; |
| } |
| |
| if (unlikely(rmd.map_index >= RAID_MAP_MAX_ENTRIES)) |
| return PQI_RAID_BYPASS_INELIGIBLE; |
| |
| rmd.aio_handle = raid_map->disk_data[rmd.map_index].aio_handle; |
| rmd.disk_block = get_unaligned_le64(&raid_map->disk_starting_blk) + |
| rmd.first_row * rmd.strip_size + |
| (rmd.first_row_offset - rmd.first_column * rmd.strip_size); |
| rmd.disk_block_cnt = rmd.block_cnt; |
| |
| /* Handle differing logical/physical block sizes. */ |
| if (raid_map->phys_blk_shift) { |
| rmd.disk_block <<= raid_map->phys_blk_shift; |
| rmd.disk_block_cnt <<= raid_map->phys_blk_shift; |
| } |
| |
| if (unlikely(rmd.disk_block_cnt > 0xffff)) |
| return PQI_RAID_BYPASS_INELIGIBLE; |
| |
| pqi_set_aio_cdb(&rmd); |
| |
| if (get_unaligned_le16(&raid_map->flags) & RAID_MAP_ENCRYPTION_ENABLED) { |
| if (rmd.data_length > device->max_transfer_encrypted) |
|