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1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 | /* SPDX-License-Identifier: GPL-2.0-or-later */ /* * pmcraid.h -- PMC Sierra MaxRAID controller driver header file * * Written By: Anil Ravindranath<anil_ravindranath@pmc-sierra.com> * PMC-Sierra Inc * * Copyright (C) 2008, 2009 PMC Sierra Inc. */ #ifndef _PMCRAID_H #define _PMCRAID_H #include <linux/types.h> #include <linux/completion.h> #include <linux/list.h> #include <scsi/scsi.h> #include <scsi/scsi_cmnd.h> #include <linux/cdev.h> #include <net/netlink.h> #include <net/genetlink.h> #include <linux/connector.h> /* * Driver name : string representing the driver name * Device file : /dev file to be used for management interfaces * Driver version: version string in major_version.minor_version.patch format * Driver date : date information in "Mon dd yyyy" format */ #define PMCRAID_DRIVER_NAME "PMC MaxRAID" #define PMCRAID_DEVFILE "pmcsas" #define PMCRAID_DRIVER_VERSION "1.0.3" #define PMCRAID_FW_VERSION_1 0x002 /* Maximum number of adapters supported by current version of the driver */ #define PMCRAID_MAX_ADAPTERS 1024 /* Bit definitions as per firmware, bit position [0][1][2].....[31] */ #define PMC_BIT8(n) (1 << (7-n)) #define PMC_BIT16(n) (1 << (15-n)) #define PMC_BIT32(n) (1 << (31-n)) /* PMC PCI vendor ID and device ID values */ #define PCI_VENDOR_ID_PMC 0x11F8 #define PCI_DEVICE_ID_PMC_MAXRAID 0x5220 /* * MAX_CMD : maximum commands that can be outstanding with IOA * MAX_IO_CMD : command blocks available for IO commands * MAX_HCAM_CMD : command blocks available for HCAMS * MAX_INTERNAL_CMD : command blocks available for internal commands like reset */ #define PMCRAID_MAX_CMD 1024 #define PMCRAID_MAX_IO_CMD 1020 #define PMCRAID_MAX_HCAM_CMD 2 #define PMCRAID_MAX_INTERNAL_CMD 2 /* MAX_IOADLS : max number of scatter-gather lists supported by IOA * IOADLS_INTERNAL : number of ioadls included as part of IOARCB. * IOADLS_EXTERNAL : number of ioadls allocated external to IOARCB */ #define PMCRAID_IOADLS_INTERNAL 27 #define PMCRAID_IOADLS_EXTERNAL 37 #define PMCRAID_MAX_IOADLS PMCRAID_IOADLS_INTERNAL /* HRRQ_ENTRY_SIZE : size of hrrq buffer * IOARCB_ALIGNMENT : alignment required for IOARCB * IOADL_ALIGNMENT : alignment requirement for IOADLs * MSIX_VECTORS : number of MSIX vectors supported */ #define HRRQ_ENTRY_SIZE sizeof(__le32) #define PMCRAID_IOARCB_ALIGNMENT 32 #define PMCRAID_IOADL_ALIGNMENT 16 #define PMCRAID_IOASA_ALIGNMENT 4 #define PMCRAID_NUM_MSIX_VECTORS 16 /* various other limits */ #define PMCRAID_VENDOR_ID_LEN 8 #define PMCRAID_PRODUCT_ID_LEN 16 #define PMCRAID_SERIAL_NUM_LEN 8 #define PMCRAID_LUN_LEN 8 #define PMCRAID_MAX_CDB_LEN 16 #define PMCRAID_DEVICE_ID_LEN 8 #define PMCRAID_SENSE_DATA_LEN 256 #define PMCRAID_ADD_CMD_PARAM_LEN 48 #define PMCRAID_MAX_BUS_TO_SCAN 1 #define PMCRAID_MAX_NUM_TARGETS_PER_BUS 256 #define PMCRAID_MAX_NUM_LUNS_PER_TARGET 8 /* IOA bus/target/lun number of IOA resources */ #define PMCRAID_IOA_BUS_ID 0xfe #define PMCRAID_IOA_TARGET_ID 0xff #define PMCRAID_IOA_LUN_ID 0xff #define PMCRAID_VSET_BUS_ID 0x1 #define PMCRAID_VSET_LUN_ID 0x0 #define PMCRAID_PHYS_BUS_ID 0x0 #define PMCRAID_VIRTUAL_ENCL_BUS_ID 0x8 #define PMCRAID_MAX_VSET_TARGETS 0x7F #define PMCRAID_MAX_VSET_LUNS_PER_TARGET 8 #define PMCRAID_IOA_MAX_SECTORS 32767 #define PMCRAID_VSET_MAX_SECTORS 512 #define PMCRAID_MAX_CMD_PER_LUN 254 /* Number of configuration table entries (resources), includes 1 FP, * 1 Enclosure device */ #define PMCRAID_MAX_RESOURCES 256 /* Adapter Commands used by driver */ #define PMCRAID_QUERY_RESOURCE_STATE 0xC2 #define PMCRAID_RESET_DEVICE 0xC3 /* options to select reset target */ #define ENABLE_RESET_MODIFIER 0x80 #define RESET_DEVICE_LUN 0x40 #define RESET_DEVICE_TARGET 0x20 #define RESET_DEVICE_BUS 0x10 #define PMCRAID_IDENTIFY_HRRQ 0xC4 #define PMCRAID_QUERY_IOA_CONFIG 0xC5 #define PMCRAID_QUERY_CMD_STATUS 0xCB #define PMCRAID_ABORT_CMD 0xC7 /* CANCEL ALL command, provides option for setting SYNC_COMPLETE * on the target resources for which commands got cancelled */ #define PMCRAID_CANCEL_ALL_REQUESTS 0xCE #define PMCRAID_SYNC_COMPLETE_AFTER_CANCEL PMC_BIT8(0) /* HCAM command and types of HCAM supported by IOA */ #define PMCRAID_HOST_CONTROLLED_ASYNC 0xCF #define PMCRAID_HCAM_CODE_CONFIG_CHANGE 0x01 #define PMCRAID_HCAM_CODE_LOG_DATA 0x02 /* IOA shutdown command and various shutdown types */ #define PMCRAID_IOA_SHUTDOWN 0xF7 #define PMCRAID_SHUTDOWN_NORMAL 0x00 #define PMCRAID_SHUTDOWN_PREPARE_FOR_NORMAL 0x40 #define PMCRAID_SHUTDOWN_NONE 0x100 #define PMCRAID_SHUTDOWN_ABBREV 0x80 /* SET SUPPORTED DEVICES command and the option to select all the * devices to be supported */ #define PMCRAID_SET_SUPPORTED_DEVICES 0xFB #define ALL_DEVICES_SUPPORTED PMC_BIT8(0) /* This option is used with SCSI WRITE_BUFFER command */ #define PMCRAID_WR_BUF_DOWNLOAD_AND_SAVE 0x05 /* IOASC Codes used by driver */ #define PMCRAID_IOASC_SENSE_MASK 0xFFFFFF00 #define PMCRAID_IOASC_SENSE_KEY(ioasc) ((ioasc) >> 24) #define PMCRAID_IOASC_SENSE_CODE(ioasc) (((ioasc) & 0x00ff0000) >> 16) #define PMCRAID_IOASC_SENSE_QUAL(ioasc) (((ioasc) & 0x0000ff00) >> 8) #define PMCRAID_IOASC_SENSE_STATUS(ioasc) ((ioasc) & 0x000000ff) #define PMCRAID_IOASC_GOOD_COMPLETION 0x00000000 #define PMCRAID_IOASC_GC_IOARCB_NOTFOUND 0x005A0000 #define PMCRAID_IOASC_NR_INIT_CMD_REQUIRED 0x02040200 #define PMCRAID_IOASC_NR_IOA_RESET_REQUIRED 0x02048000 #define PMCRAID_IOASC_NR_SYNC_REQUIRED 0x023F0000 #define PMCRAID_IOASC_ME_READ_ERROR_NO_REALLOC 0x03110C00 #define PMCRAID_IOASC_HW_CANNOT_COMMUNICATE 0x04050000 #define PMCRAID_IOASC_HW_DEVICE_TIMEOUT 0x04080100 #define PMCRAID_IOASC_HW_DEVICE_BUS_STATUS_ERROR 0x04448500 #define PMCRAID_IOASC_HW_IOA_RESET_REQUIRED 0x04448600 #define PMCRAID_IOASC_IR_INVALID_RESOURCE_HANDLE 0x05250000 #define PMCRAID_IOASC_AC_TERMINATED_BY_HOST 0x0B5A0000 #define PMCRAID_IOASC_UA_BUS_WAS_RESET 0x06290000 #define PMCRAID_IOASC_TIME_STAMP_OUT_OF_SYNC 0x06908B00 #define PMCRAID_IOASC_UA_BUS_WAS_RESET_BY_OTHER 0x06298000 /* Driver defined IOASCs */ #define PMCRAID_IOASC_IOA_WAS_RESET 0x10000001 #define PMCRAID_IOASC_PCI_ACCESS_ERROR 0x10000002 /* Various timeout values (in milliseconds) used. If any of these are chip * specific, move them to pmcraid_chip_details structure. */ #define PMCRAID_PCI_DEASSERT_TIMEOUT 2000 #define PMCRAID_BIST_TIMEOUT 2000 #define PMCRAID_AENWAIT_TIMEOUT 5000 #define PMCRAID_TRANSOP_TIMEOUT 60000 #define PMCRAID_RESET_TIMEOUT (2 * HZ) #define PMCRAID_CHECK_FOR_RESET_TIMEOUT ((HZ / 10)) #define PMCRAID_VSET_IO_TIMEOUT (60 * HZ) #define PMCRAID_INTERNAL_TIMEOUT (60 * HZ) #define PMCRAID_SHUTDOWN_TIMEOUT (150 * HZ) #define PMCRAID_RESET_BUS_TIMEOUT (60 * HZ) #define PMCRAID_RESET_HOST_TIMEOUT (150 * HZ) #define PMCRAID_REQUEST_SENSE_TIMEOUT (30 * HZ) #define PMCRAID_SET_SUP_DEV_TIMEOUT (2 * 60 * HZ) /* structure to represent a scatter-gather element (IOADL descriptor) */ struct pmcraid_ioadl_desc { __le64 address; __le32 data_len; __u8 reserved[3]; __u8 flags; } __attribute__((packed, aligned(PMCRAID_IOADL_ALIGNMENT))); /* pmcraid_ioadl_desc.flags values */ #define IOADL_FLAGS_CHAINED PMC_BIT8(0) #define IOADL_FLAGS_LAST_DESC PMC_BIT8(1) #define IOADL_FLAGS_READ_LAST PMC_BIT8(1) #define IOADL_FLAGS_WRITE_LAST PMC_BIT8(1) /* additional IOARCB data which can be CDB or additional request parameters * or list of IOADLs. Firmware supports max of 512 bytes for IOARCB, hence then * number of IOADLs are limted to 27. In case they are more than 27, they will * be used in chained form */ struct pmcraid_ioarcb_add_data { union { struct pmcraid_ioadl_desc ioadl[PMCRAID_IOADLS_INTERNAL]; __u8 add_cmd_params[PMCRAID_ADD_CMD_PARAM_LEN]; } u; }; /* * IOA Request Control Block */ struct pmcraid_ioarcb { __le64 ioarcb_bus_addr; __le32 resource_handle; __le32 response_handle; __le64 ioadl_bus_addr; __le32 ioadl_length; __le32 data_transfer_length; __le64 ioasa_bus_addr; __le16 ioasa_len; __le16 cmd_timeout; __le16 add_cmd_param_offset; __le16 add_cmd_param_length; __le32 reserved1[2]; __le32 reserved2; __u8 request_type; __u8 request_flags0; __u8 request_flags1; __u8 hrrq_id; __u8 cdb[PMCRAID_MAX_CDB_LEN]; struct pmcraid_ioarcb_add_data add_data; }; /* well known resource handle values */ #define PMCRAID_IOA_RES_HANDLE 0xffffffff #define PMCRAID_INVALID_RES_HANDLE 0 /* pmcraid_ioarcb.request_type values */ #define REQ_TYPE_SCSI 0x00 #define REQ_TYPE_IOACMD 0x01 #define REQ_TYPE_HCAM 0x02 /* pmcraid_ioarcb.flags0 values */ #define TRANSFER_DIR_WRITE PMC_BIT8(0) #define INHIBIT_UL_CHECK PMC_BIT8(2) #define SYNC_OVERRIDE PMC_BIT8(3) #define SYNC_COMPLETE PMC_BIT8(4) #define NO_LINK_DESCS PMC_BIT8(5) /* pmcraid_ioarcb.flags1 values */ #define DELAY_AFTER_RESET PMC_BIT8(0) #define TASK_TAG_SIMPLE 0x10 #define TASK_TAG_ORDERED 0x20 #define TASK_TAG_QUEUE_HEAD 0x30 /* toggle bit offset in response handle */ #define HRRQ_TOGGLE_BIT 0x01 #define HRRQ_RESPONSE_BIT 0x02 /* IOA Status Area */ struct pmcraid_ioasa_vset { __le32 failing_lba_hi; __le32 failing_lba_lo; __le32 reserved; } __attribute__((packed, aligned(4))); struct pmcraid_ioasa { __le32 ioasc; __le16 returned_status_length; __le16 available_status_length; __le32 residual_data_length; __le32 ilid; __le32 fd_ioasc; __le32 fd_res_address; __le32 fd_res_handle; __le32 reserved; /* resource specific sense information */ union { struct pmcraid_ioasa_vset vset; } u; /* IOA autosense data */ __le16 auto_sense_length; __le16 error_data_length; __u8 sense_data[PMCRAID_SENSE_DATA_LEN]; } __attribute__((packed, aligned(4))); #define PMCRAID_DRIVER_ILID 0xffffffff /* Config Table Entry per Resource */ struct pmcraid_config_table_entry { __u8 resource_type; __u8 bus_protocol; __le16 array_id; __u8 common_flags0; __u8 common_flags1; __u8 unique_flags0; __u8 unique_flags1; /*also used as vset target_id */ __le32 resource_handle; __le32 resource_address; __u8 device_id[PMCRAID_DEVICE_ID_LEN]; __u8 lun[PMCRAID_LUN_LEN]; } __attribute__((packed, aligned(4))); /* extended configuration table sizes are also of 32 bytes in size */ struct pmcraid_config_table_entry_ext { struct pmcraid_config_table_entry cfgte; }; /* resource types (config_table_entry.resource_type values) */ #define RES_TYPE_AF_DASD 0x00 #define RES_TYPE_GSCSI 0x01 #define RES_TYPE_VSET 0x02 #define RES_TYPE_IOA_FP 0xFF #define RES_IS_IOA(res) ((res).resource_type == RES_TYPE_IOA_FP) #define RES_IS_GSCSI(res) ((res).resource_type == RES_TYPE_GSCSI) #define RES_IS_VSET(res) ((res).resource_type == RES_TYPE_VSET) #define RES_IS_AFDASD(res) ((res).resource_type == RES_TYPE_AF_DASD) /* bus_protocol values used by driver */ #define RES_TYPE_VENCLOSURE 0x8 /* config_table_entry.common_flags0 */ #define MULTIPATH_RESOURCE PMC_BIT32(0) /* unique_flags1 */ #define IMPORT_MODE_MANUAL PMC_BIT8(0) /* well known resource handle values */ #define RES_HANDLE_IOA 0xFFFFFFFF #define RES_HANDLE_NONE 0x00000000 /* well known resource address values */ #define RES_ADDRESS_IOAFP 0xFEFFFFFF #define RES_ADDRESS_INVALID 0xFFFFFFFF /* BUS/TARGET/LUN values from resource_addrr */ #define RES_BUS(res_addr) (le32_to_cpu(res_addr) & 0xFF) #define RES_TARGET(res_addr) ((le32_to_cpu(res_addr) >> 16) & 0xFF) #define RES_LUN(res_addr) 0x0 /* configuration table structure */ struct pmcraid_config_table { __le16 num_entries; __u8 table_format; __u8 reserved1; __u8 flags; __u8 reserved2[11]; union { struct pmcraid_config_table_entry entries[PMCRAID_MAX_RESOURCES]; struct pmcraid_config_table_entry_ext entries_ext[PMCRAID_MAX_RESOURCES]; }; } __attribute__((packed, aligned(4))); /* config_table.flags value */ #define MICROCODE_UPDATE_REQUIRED PMC_BIT32(0) /* * HCAM format */ #define PMCRAID_HOSTRCB_LDNSIZE 4056 /* Error log notification format */ struct pmcraid_hostrcb_error { __le32 fd_ioasc; __le32 fd_ra; __le32 fd_rh; __le32 prc; union { __u8 data[PMCRAID_HOSTRCB_LDNSIZE]; } u; } __attribute__ ((packed, aligned(4))); struct pmcraid_hcam_hdr { __u8 op_code; __u8 notification_type; __u8 notification_lost; __u8 flags; __u8 overlay_id; __u8 reserved1[3]; __le32 ilid; __le32 timestamp1; __le32 timestamp2; __le32 data_len; } __attribute__((packed, aligned(4))); #define PMCRAID_AEN_GROUP 0x3 struct pmcraid_hcam_ccn { struct pmcraid_hcam_hdr header; struct pmcraid_config_table_entry cfg_entry; struct pmcraid_config_table_entry cfg_entry_old; } __attribute__((packed, aligned(4))); #define PMCRAID_CCN_EXT_SIZE 3944 struct pmcraid_hcam_ccn_ext { struct pmcraid_hcam_hdr header; struct pmcraid_config_table_entry_ext cfg_entry; struct pmcraid_config_table_entry_ext cfg_entry_old; __u8 reserved[PMCRAID_CCN_EXT_SIZE]; } __attribute__((packed, aligned(4))); struct pmcraid_hcam_ldn { struct pmcraid_hcam_hdr header; struct pmcraid_hostrcb_error error_log; } __attribute__((packed, aligned(4))); /* pmcraid_hcam.op_code values */ #define HOSTRCB_TYPE_CCN 0xE1 #define HOSTRCB_TYPE_LDN 0xE2 /* pmcraid_hcam.notification_type values */ #define NOTIFICATION_TYPE_ENTRY_CHANGED 0x0 #define NOTIFICATION_TYPE_ENTRY_NEW 0x1 #define NOTIFICATION_TYPE_ENTRY_DELETED 0x2 #define NOTIFICATION_TYPE_STATE_CHANGE 0x3 #define NOTIFICATION_TYPE_ENTRY_STATECHANGED 0x4 #define NOTIFICATION_TYPE_ERROR_LOG 0x10 #define NOTIFICATION_TYPE_INFORMATION_LOG 0x11 #define HOSTRCB_NOTIFICATIONS_LOST PMC_BIT8(0) /* pmcraid_hcam.flags values */ #define HOSTRCB_INTERNAL_OP_ERROR PMC_BIT8(0) #define HOSTRCB_ERROR_RESPONSE_SENT PMC_BIT8(1) /* pmcraid_hcam.overlay_id values */ #define HOSTRCB_OVERLAY_ID_08 0x08 #define HOSTRCB_OVERLAY_ID_09 0x09 #define HOSTRCB_OVERLAY_ID_11 0x11 #define HOSTRCB_OVERLAY_ID_12 0x12 #define HOSTRCB_OVERLAY_ID_13 0x13 #define HOSTRCB_OVERLAY_ID_14 0x14 #define HOSTRCB_OVERLAY_ID_16 0x16 #define HOSTRCB_OVERLAY_ID_17 0x17 #define HOSTRCB_OVERLAY_ID_20 0x20 #define HOSTRCB_OVERLAY_ID_FF 0xFF /* Implementation specific card details */ struct pmcraid_chip_details { /* hardware register offsets */ unsigned long ioastatus; unsigned long ioarrin; unsigned long mailbox; unsigned long global_intr_mask; unsigned long ioa_host_intr; unsigned long ioa_host_msix_intr; unsigned long ioa_host_intr_clr; unsigned long ioa_host_mask; unsigned long ioa_host_mask_clr; unsigned long host_ioa_intr; unsigned long host_ioa_intr_clr; /* timeout used during transitional to operational state */ unsigned long transop_timeout; }; /* IOA to HOST doorbells (interrupts) */ #define INTRS_TRANSITION_TO_OPERATIONAL PMC_BIT32(0) #define INTRS_IOARCB_TRANSFER_FAILED PMC_BIT32(3) #define INTRS_IOA_UNIT_CHECK PMC_BIT32(4) #define INTRS_NO_HRRQ_FOR_CMD_RESPONSE PMC_BIT32(5) #define INTRS_CRITICAL_OP_IN_PROGRESS PMC_BIT32(6) #define INTRS_IO_DEBUG_ACK PMC_BIT32(7) #define INTRS_IOARRIN_LOST PMC_BIT32(27) #define INTRS_SYSTEM_BUS_MMIO_ERROR PMC_BIT32(28) #define INTRS_IOA_PROCESSOR_ERROR PMC_BIT32(29) #define INTRS_HRRQ_VALID PMC_BIT32(30) #define INTRS_OPERATIONAL_STATUS PMC_BIT32(0) #define INTRS_ALLOW_MSIX_VECTOR0 PMC_BIT32(31) /* Host to IOA Doorbells */ #define DOORBELL_RUNTIME_RESET PMC_BIT32(1) #define DOORBELL_IOA_RESET_ALERT PMC_BIT32(7) #define DOORBELL_IOA_DEBUG_ALERT PMC_BIT32(9) #define DOORBELL_ENABLE_DESTRUCTIVE_DIAGS PMC_BIT32(8) #define DOORBELL_IOA_START_BIST PMC_BIT32(23) #define DOORBELL_INTR_MODE_MSIX PMC_BIT32(25) #define DOORBELL_INTR_MSIX_CLR PMC_BIT32(26) #define DOORBELL_RESET_IOA PMC_BIT32(31) /* Global interrupt mask register value */ #define GLOBAL_INTERRUPT_MASK 0x5ULL #define PMCRAID_ERROR_INTERRUPTS (INTRS_IOARCB_TRANSFER_FAILED | \ INTRS_IOA_UNIT_CHECK | \ INTRS_NO_HRRQ_FOR_CMD_RESPONSE | \ INTRS_IOARRIN_LOST | \ INTRS_SYSTEM_BUS_MMIO_ERROR | \ INTRS_IOA_PROCESSOR_ERROR) #define PMCRAID_PCI_INTERRUPTS (PMCRAID_ERROR_INTERRUPTS | \ INTRS_HRRQ_VALID | \ INTRS_TRANSITION_TO_OPERATIONAL |\ INTRS_ALLOW_MSIX_VECTOR0) /* control_block, associated with each of the commands contains IOARCB, IOADLs * memory for IOASA. Additional 3 * 16 bytes are allocated in order to support * additional request parameters (of max size 48) any command. */ struct pmcraid_control_block { struct pmcraid_ioarcb ioarcb; struct pmcraid_ioadl_desc ioadl[PMCRAID_IOADLS_EXTERNAL + 3]; struct pmcraid_ioasa ioasa; } __attribute__ ((packed, aligned(PMCRAID_IOARCB_ALIGNMENT))); /* pmcraid_sglist - Scatter-gather list allocated for passthrough ioctls */ struct pmcraid_sglist { u32 order; u32 num_sg; u32 num_dma_sg; struct scatterlist *scatterlist; }; /* page D0 inquiry data of focal point resource */ struct pmcraid_inquiry_data { __u8 ph_dev_type; __u8 page_code; __u8 reserved1; __u8 add_page_len; __u8 length; __u8 reserved2; __be16 fw_version; __u8 reserved3[16]; }; #define PMCRAID_TIMESTAMP_LEN 12 #define PMCRAID_REQ_TM_STR_LEN 6 #define PMCRAID_SCSI_SET_TIMESTAMP 0xA4 #define PMCRAID_SCSI_SERVICE_ACTION 0x0F struct pmcraid_timestamp_data { __u8 reserved1[4]; __u8 timestamp[PMCRAID_REQ_TM_STR_LEN]; /* current time value */ __u8 reserved2[2]; }; /* pmcraid_cmd - LLD representation of SCSI command */ struct pmcraid_cmd { /* Ptr and bus address of DMA.able control block for this command */ struct pmcraid_control_block *ioa_cb; dma_addr_t ioa_cb_bus_addr; dma_addr_t dma_handle; /* pointer to mid layer structure of SCSI commands */ struct scsi_cmnd *scsi_cmd; struct list_head free_list; struct completion wait_for_completion; struct timer_list timer; /* needed for internal commands */ u32 timeout; /* current timeout value */ u32 index; /* index into the command list */ u8 completion_req; /* for handling internal commands */ u8 release; /* for handling completions */ void (*cmd_done) (struct pmcraid_cmd *); struct pmcraid_instance *drv_inst; struct pmcraid_sglist *sglist; /* used for passthrough IOCTLs */ /* scratch used */ union { /* during reset sequence */ unsigned long time_left; struct pmcraid_resource_entry *res; int hrrq_index; /* used during IO command error handling. Sense buffer * for REQUEST SENSE command if firmware is not sending * auto sense data */ struct { u8 *sense_buffer; dma_addr_t sense_buffer_dma; }; }; }; /* * Interrupt registers of IOA */ struct pmcraid_interrupts { void __iomem *ioa_host_interrupt_reg; void __iomem *ioa_host_msix_interrupt_reg; void __iomem *ioa_host_interrupt_clr_reg; void __iomem *ioa_host_interrupt_mask_reg; void __iomem *ioa_host_interrupt_mask_clr_reg; void __iomem *global_interrupt_mask_reg; void __iomem *host_ioa_interrupt_reg; void __iomem *host_ioa_interrupt_clr_reg; }; /* ISR parameters LLD allocates (one for each MSI-X if enabled) vectors */ struct pmcraid_isr_param { struct pmcraid_instance *drv_inst; u8 hrrq_id; /* hrrq entry index */ }; /* AEN message header sent as part of event data to applications */ struct pmcraid_aen_msg { u32 hostno; u32 length; u8 reserved[8]; u8 data[]; }; /* Controller state event message type */ struct pmcraid_state_msg { struct pmcraid_aen_msg msg; u32 ioa_state; }; #define PMC_DEVICE_EVENT_RESET_START 0x11000000 #define PMC_DEVICE_EVENT_RESET_SUCCESS 0x11000001 #define PMC_DEVICE_EVENT_RESET_FAILED 0x11000002 #define PMC_DEVICE_EVENT_SHUTDOWN_START 0x11000003 #define PMC_DEVICE_EVENT_SHUTDOWN_SUCCESS 0x11000004 #define PMC_DEVICE_EVENT_SHUTDOWN_FAILED 0x11000005 struct pmcraid_hostrcb { struct pmcraid_instance *drv_inst; struct pmcraid_aen_msg *msg; struct pmcraid_hcam_hdr *hcam; /* pointer to hcam buffer */ struct pmcraid_cmd *cmd; /* pointer to command block used */ dma_addr_t baddr; /* system address of hcam buffer */ atomic_t ignore; /* process HCAM response ? */ }; #define PMCRAID_AEN_HDR_SIZE sizeof(struct pmcraid_aen_msg) /* * Per adapter structure maintained by LLD */ struct pmcraid_instance { /* Array of allowed-to-be-exposed resources, initialized from * Configutation Table, later updated with CCNs */ struct pmcraid_resource_entry *res_entries; struct list_head free_res_q; /* res_entries lists for easy lookup */ struct list_head used_res_q; /* List of to be exposed resources */ spinlock_t resource_lock; /* spinlock to protect resource list */ void __iomem *mapped_dma_addr; void __iomem *ioa_status; /* Iomapped IOA status register */ void __iomem *mailbox; /* Iomapped mailbox register */ void __iomem *ioarrin; /* IOmapped IOARR IN register */ struct pmcraid_interrupts int_regs; struct pmcraid_chip_details *chip_cfg; /* HostRCBs needed for HCAM */ struct pmcraid_hostrcb ldn; struct pmcraid_hostrcb ccn; struct pmcraid_state_msg scn; /* controller state change msg */ /* Bus address of start of HRRQ */ dma_addr_t hrrq_start_bus_addr[PMCRAID_NUM_MSIX_VECTORS]; /* Pointer to 1st entry of HRRQ */ __le32 *hrrq_start[PMCRAID_NUM_MSIX_VECTORS]; /* Pointer to last entry of HRRQ */ __le32 *hrrq_end[PMCRAID_NUM_MSIX_VECTORS]; /* Pointer to current pointer of hrrq */ __le32 *hrrq_curr[PMCRAID_NUM_MSIX_VECTORS]; /* Lock for HRRQ access */ spinlock_t hrrq_lock[PMCRAID_NUM_MSIX_VECTORS]; struct pmcraid_inquiry_data *inq_data; dma_addr_t inq_data_baddr; struct pmcraid_timestamp_data *timestamp_data; dma_addr_t timestamp_data_baddr; /* size of configuration table entry, varies based on the firmware */ u32 config_table_entry_size; /* Expected toggle bit at host */ u8 host_toggle_bit[PMCRAID_NUM_MSIX_VECTORS]; /* Wait Q for threads to wait for Reset IOA completion */ wait_queue_head_t reset_wait_q; struct pmcraid_cmd *reset_cmd; /* structures for supporting SIGIO based AEN. */ struct fasync_struct *aen_queue; struct mutex aen_queue_lock; /* lock for aen subscribers list */ struct cdev cdev; struct Scsi_Host *host; /* mid layer interface structure handle */ struct pci_dev *pdev; /* PCI device structure handle */ /* No of Reset IOA retries . IOA marked dead if threshold exceeds */ u8 ioa_reset_attempts; #define PMCRAID_RESET_ATTEMPTS 3 u8 current_log_level; /* default level for logging IOASC errors */ u8 num_hrrq; /* Number of interrupt vectors allocated */ u8 interrupt_mode; /* current interrupt mode legacy or msix */ dev_t dev; /* Major-Minor numbers for Char device */ /* Used as ISR handler argument */ struct pmcraid_isr_param hrrq_vector[PMCRAID_NUM_MSIX_VECTORS]; /* Message id as filled in last fired IOARCB, used to identify HRRQ */ atomic_t last_message_id; /* configuration table */ struct pmcraid_config_table *cfg_table; dma_addr_t cfg_table_bus_addr; /* structures related to command blocks */ struct kmem_cache *cmd_cachep; /* cache for cmd blocks */ struct dma_pool *control_pool; /* pool for control blocks */ char cmd_pool_name[64]; /* name of cmd cache */ char ctl_pool_name[64]; /* name of control cache */ struct pmcraid_cmd *cmd_list[PMCRAID_MAX_CMD]; struct list_head free_cmd_pool; struct list_head pending_cmd_pool; spinlock_t free_pool_lock; /* free pool lock */ spinlock_t pending_pool_lock; /* pending pool lock */ /* Tasklet to handle deferred processing */ struct tasklet_struct isr_tasklet[PMCRAID_NUM_MSIX_VECTORS]; /* Work-queue (Shared) for deferred reset processing */ struct work_struct worker_q; /* No of IO commands pending with FW */ atomic_t outstanding_cmds; /* should add/delete resources to mid-layer now ?*/ atomic_t expose_resources; u32 ioa_state:4; /* For IOA Reset sequence FSM */ #define IOA_STATE_OPERATIONAL 0x0 #define IOA_STATE_UNKNOWN 0x1 #define IOA_STATE_DEAD 0x2 #define IOA_STATE_IN_SOFT_RESET 0x3 #define IOA_STATE_IN_HARD_RESET 0x4 #define IOA_STATE_IN_RESET_ALERT 0x5 #define IOA_STATE_IN_BRINGDOWN 0x6 #define IOA_STATE_IN_BRINGUP 0x7 u32 ioa_reset_in_progress:1; /* true if IOA reset is in progress */ u32 ioa_hard_reset:1; /* TRUE if Hard Reset is needed */ u32 ioa_unit_check:1; /* Indicates Unit Check condition */ u32 ioa_bringdown:1; /* whether IOA needs to be brought down */ u32 force_ioa_reset:1; /* force adapter reset ? */ u32 reinit_cfg_table:1; /* reinit config table due to lost CCN */ u32 ioa_shutdown_type:2;/* shutdown type used during reset */ #define SHUTDOWN_NONE 0x0 #define SHUTDOWN_NORMAL 0x1 #define SHUTDOWN_ABBREV 0x2 u32 timestamp_error:1; /* indicate set timestamp for out of sync */ }; /* LLD maintained resource entry structure */ struct pmcraid_resource_entry { struct list_head queue; /* link to "to be exposed" resources */ union { struct pmcraid_config_table_entry cfg_entry; struct pmcraid_config_table_entry_ext cfg_entry_ext; }; struct scsi_device *scsi_dev; /* Link scsi_device structure */ atomic_t read_failures; /* count of failed READ commands */ atomic_t write_failures; /* count of failed WRITE commands */ /* To indicate add/delete/modify during CCN */ u8 change_detected; #define RES_CHANGE_ADD 0x1 /* add this to mid-layer */ #define RES_CHANGE_DEL 0x2 /* remove this from mid-layer */ u8 reset_progress; /* Device is resetting */ /* * When IOA asks for sync (i.e. IOASC = Not Ready, Sync Required), this * flag will be set, mid layer will be asked to retry. In the next * attempt, this flag will be checked in queuecommand() to set * SYNC_COMPLETE flag in IOARCB (flag_0). */ u8 sync_reqd; /* target indicates the mapped target_id assigned to this resource if * this is VSET resource. For non-VSET resources this will be un-used * or zero */ u8 target; }; /* Data structures used in IOASC error code logging */ struct pmcraid_ioasc_error { u32 ioasc_code; /* IOASC code */ u8 log_level; /* default log level assignment. */ char *error_string; }; /* Initial log_level assignments for various IOASCs */ #define IOASC_LOG_LEVEL_NONE 0x0 /* no logging */ #define IOASC_LOG_LEVEL_MUST 0x1 /* must log: all high-severity errors */ #define IOASC_LOG_LEVEL_HARD 0x2 /* optional – low severity errors */ /* Error information maintained by LLD. LLD initializes the pmcraid_error_table * statically. */ static struct pmcraid_ioasc_error pmcraid_ioasc_error_table[] = { {0x01180600, IOASC_LOG_LEVEL_HARD, "Recovered Error, soft media error, sector reassignment suggested"}, {0x015D0000, IOASC_LOG_LEVEL_HARD, "Recovered Error, failure prediction threshold exceeded"}, {0x015D9200, IOASC_LOG_LEVEL_HARD, "Recovered Error, soft Cache Card Battery error threshold"}, {0x015D9200, IOASC_LOG_LEVEL_HARD, "Recovered Error, soft Cache Card Battery error threshold"}, {0x02048000, IOASC_LOG_LEVEL_HARD, "Not Ready, IOA Reset Required"}, {0x02408500, IOASC_LOG_LEVEL_HARD, "Not Ready, IOA microcode download required"}, {0x03110B00, IOASC_LOG_LEVEL_HARD, "Medium Error, data unreadable, reassignment suggested"}, {0x03110C00, IOASC_LOG_LEVEL_MUST, "Medium Error, data unreadable do not reassign"}, {0x03310000, IOASC_LOG_LEVEL_HARD, "Medium Error, media corrupted"}, {0x04050000, IOASC_LOG_LEVEL_HARD, "Hardware Error, IOA can't communicate with device"}, {0x04080000, IOASC_LOG_LEVEL_MUST, "Hardware Error, device bus error"}, {0x04088000, IOASC_LOG_LEVEL_MUST, "Hardware Error, device bus is not functioning"}, {0x04118000, IOASC_LOG_LEVEL_HARD, "Hardware Error, IOA reserved area data check"}, {0x04118100, IOASC_LOG_LEVEL_HARD, "Hardware Error, IOA reserved area invalid data pattern"}, {0x04118200, IOASC_LOG_LEVEL_HARD, "Hardware Error, IOA reserved area LRC error"}, {0x04320000, IOASC_LOG_LEVEL_HARD, "Hardware Error, reassignment space exhausted"}, {0x04330000, IOASC_LOG_LEVEL_HARD, "Hardware Error, data transfer underlength error"}, {0x04330000, IOASC_LOG_LEVEL_HARD, "Hardware Error, data transfer overlength error"}, {0x04418000, IOASC_LOG_LEVEL_MUST, "Hardware Error, PCI bus error"}, {0x04440000, IOASC_LOG_LEVEL_HARD, "Hardware Error, device error"}, {0x04448200, IOASC_LOG_LEVEL_MUST, "Hardware Error, IOA error"}, {0x04448300, IOASC_LOG_LEVEL_HARD, "Hardware Error, undefined device response"}, {0x04448400, IOASC_LOG_LEVEL_HARD, "Hardware Error, IOA microcode error"}, {0x04448600, IOASC_LOG_LEVEL_HARD, "Hardware Error, IOA reset required"}, {0x04449200, IOASC_LOG_LEVEL_HARD, "Hardware Error, hard Cache Fearuee Card Battery error"}, {0x0444A000, IOASC_LOG_LEVEL_HARD, "Hardware Error, failed device altered"}, {0x0444A200, IOASC_LOG_LEVEL_HARD, "Hardware Error, data check after reassignment"}, {0x0444A300, IOASC_LOG_LEVEL_HARD, "Hardware Error, LRC error after reassignment"}, {0x044A0000, IOASC_LOG_LEVEL_HARD, "Hardware Error, device bus error (msg/cmd phase)"}, {0x04670400, IOASC_LOG_LEVEL_HARD, "Hardware Error, new device can't be used"}, {0x04678000, IOASC_LOG_LEVEL_HARD, "Hardware Error, invalid multiadapter configuration"}, {0x04678100, IOASC_LOG_LEVEL_HARD, "Hardware Error, incorrect connection between enclosures"}, {0x04678200, IOASC_LOG_LEVEL_HARD, "Hardware Error, connections exceed IOA design limits"}, {0x04678300, IOASC_LOG_LEVEL_HARD, "Hardware Error, incorrect multipath connection"}, {0x04679000, IOASC_LOG_LEVEL_HARD, "Hardware Error, command to LUN failed"}, {0x064C8000, IOASC_LOG_LEVEL_HARD, "Unit Attention, cache exists for missing/failed device"}, {0x06670100, IOASC_LOG_LEVEL_HARD, "Unit Attention, incompatible exposed mode device"}, {0x06670600, IOASC_LOG_LEVEL_HARD, "Unit Attention, attachment of logical unit failed"}, {0x06678000, IOASC_LOG_LEVEL_HARD, "Unit Attention, cables exceed connective design limit"}, {0x06678300, IOASC_LOG_LEVEL_HARD, "Unit Attention, incomplete multipath connection between" \ "IOA and enclosure"}, {0x06678400, IOASC_LOG_LEVEL_HARD, "Unit Attention, incomplete multipath connection between" \ "device and enclosure"}, {0x06678500, IOASC_LOG_LEVEL_HARD, "Unit Attention, incomplete multipath connection between" \ "IOA and remote IOA"}, {0x06678600, IOASC_LOG_LEVEL_HARD, "Unit Attention, missing remote IOA"}, {0x06679100, IOASC_LOG_LEVEL_HARD, "Unit Attention, enclosure doesn't support required multipath" \ "function"}, {0x06698200, IOASC_LOG_LEVEL_HARD, "Unit Attention, corrupt array parity detected on device"}, {0x066B0200, IOASC_LOG_LEVEL_HARD, "Unit Attention, array exposed"}, {0x066B8200, IOASC_LOG_LEVEL_HARD, "Unit Attention, exposed array is still protected"}, {0x066B9200, IOASC_LOG_LEVEL_HARD, "Unit Attention, Multipath redundancy level got worse"}, {0x07270000, IOASC_LOG_LEVEL_HARD, "Data Protect, device is read/write protected by IOA"}, {0x07278000, IOASC_LOG_LEVEL_HARD, "Data Protect, IOA doesn't support device attribute"}, {0x07278100, IOASC_LOG_LEVEL_HARD, "Data Protect, NVRAM mirroring prohibited"}, {0x07278400, IOASC_LOG_LEVEL_HARD, "Data Protect, array is short 2 or more devices"}, {0x07278600, IOASC_LOG_LEVEL_HARD, "Data Protect, exposed array is short a required device"}, {0x07278700, IOASC_LOG_LEVEL_HARD, "Data Protect, array members not at required addresses"}, {0x07278800, IOASC_LOG_LEVEL_HARD, "Data Protect, exposed mode device resource address conflict"}, {0x07278900, IOASC_LOG_LEVEL_HARD, "Data Protect, incorrect resource address of exposed mode device"}, {0x07278A00, IOASC_LOG_LEVEL_HARD, "Data Protect, Array is missing a device and parity is out of sync"}, {0x07278B00, IOASC_LOG_LEVEL_HARD, "Data Protect, maximum number of arrays already exist"}, {0x07278C00, IOASC_LOG_LEVEL_HARD, "Data Protect, cannot locate cache data for device"}, {0x07278D00, IOASC_LOG_LEVEL_HARD, "Data Protect, cache data exits for a changed device"}, {0x07279100, IOASC_LOG_LEVEL_HARD, "Data Protect, detection of a device requiring format"}, {0x07279200, IOASC_LOG_LEVEL_HARD, "Data Protect, IOA exceeds maximum number of devices"}, {0x07279600, IOASC_LOG_LEVEL_HARD, "Data Protect, missing array, volume set is not functional"}, {0x07279700, IOASC_LOG_LEVEL_HARD, "Data Protect, single device for a volume set"}, {0x07279800, IOASC_LOG_LEVEL_HARD, "Data Protect, missing multiple devices for a volume set"}, {0x07279900, IOASC_LOG_LEVEL_HARD, "Data Protect, maximum number of volument sets already exists"}, {0x07279A00, IOASC_LOG_LEVEL_HARD, "Data Protect, other volume set problem"}, }; /* macros to help in debugging */ #define pmcraid_err(...) \ printk(KERN_ERR "MaxRAID: "__VA_ARGS__) #define pmcraid_info(...) \ if (pmcraid_debug_log) \ printk(KERN_INFO "MaxRAID: "__VA_ARGS__) /* check if given command is a SCSI READ or SCSI WRITE command */ #define SCSI_READ_CMD 0x1 /* any of SCSI READ commands */ #define SCSI_WRITE_CMD 0x2 /* any of SCSI WRITE commands */ #define SCSI_CMD_TYPE(opcode) \ ({ u8 op = opcode; u8 __type = 0;\ if (op == READ_6 || op == READ_10 || op == READ_12 || op == READ_16)\ __type = SCSI_READ_CMD;\ else if (op == WRITE_6 || op == WRITE_10 || op == WRITE_12 || \ op == WRITE_16)\ __type = SCSI_WRITE_CMD;\ __type;\ }) #define IS_SCSI_READ_WRITE(opcode) \ ({ u8 __type = SCSI_CMD_TYPE(opcode); \ (__type == SCSI_READ_CMD || __type == SCSI_WRITE_CMD) ? 1 : 0;\ }) /* * pmcraid_ioctl_header - definition of header structure that precedes all the * buffers given as ioctl arguments. * * .signature : always ASCII string, "PMCRAID" * .reserved : not used * .buffer_length : length of the buffer following the header */ struct pmcraid_ioctl_header { u8 signature[8]; u32 reserved; u32 buffer_length; }; #define PMCRAID_IOCTL_SIGNATURE "PMCRAID" /* * keys to differentiate between driver handled IOCTLs and passthrough * IOCTLs passed to IOA. driver determines the ioctl type using macro * _IOC_TYPE */ #define PMCRAID_DRIVER_IOCTL 'D' #define DRV_IOCTL(n, size) \ _IOC(_IOC_READ|_IOC_WRITE, PMCRAID_DRIVER_IOCTL, (n), (size)) /* * _ARGSIZE: macro that gives size of the argument type passed to an IOCTL cmd. * This is to facilitate applications avoiding un-necessary memory allocations. * For example, most of driver handled ioctls do not require ioarcb, ioasa. */ #define _ARGSIZE(arg) (sizeof(struct pmcraid_ioctl_header) + sizeof(arg)) /* Driver handled IOCTL command definitions */ #define PMCRAID_IOCTL_RESET_ADAPTER \ DRV_IOCTL(5, sizeof(struct pmcraid_ioctl_header)) #endif /* _PMCRAID_H */ |