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linux_dsm_epyc7002/drivers/scsi/smartpqi/smartpqi.h
Christoph Hellwig 5219822687 scsi: smartpqi: switch to pci_alloc_irq_vectors 
Which cleans up a lot of the MSI-X handling, and allows us to use the
PCI IRQ layer provided vector mapping, which we can then expose to
blk-mq.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Acked-by: Don Brace <don.brace@microsemi.com>
Tested-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-11-08 17:30:00 -05:00

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/*
* driver for Microsemi PQI-based storage controllers
* Copyright (c) 2016 Microsemi Corporation
* Copyright (c) 2016 PMC-Sierra, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
* NON INFRINGEMENT. See the GNU General Public License for more details.
*
* Questions/Comments/Bugfixes to esc.storagedev@microsemi.com
*
*/
#if !defined(_SMARTPQI_H)
#define _SMARTPQI_H
#pragma pack(1)
#define PQI_DEVICE_SIGNATURE "PQI DREG"
/* This structure is defined by the PQI specification. */
struct pqi_device_registers {
__le64 signature;
u8 function_and_status_code;
u8 reserved[7];
u8 max_admin_iq_elements;
u8 max_admin_oq_elements;
u8 admin_iq_element_length; /* in 16-byte units */
u8 admin_oq_element_length; /* in 16-byte units */
__le16 max_reset_timeout; /* in 100-millisecond units */
u8 reserved1[2];
__le32 legacy_intx_status;
__le32 legacy_intx_mask_set;
__le32 legacy_intx_mask_clear;
u8 reserved2[28];
__le32 device_status;
u8 reserved3[4];
__le64 admin_iq_pi_offset;
__le64 admin_oq_ci_offset;
__le64 admin_iq_element_array_addr;
__le64 admin_oq_element_array_addr;
__le64 admin_iq_ci_addr;
__le64 admin_oq_pi_addr;
u8 admin_iq_num_elements;
u8 admin_oq_num_elements;
__le16 admin_queue_int_msg_num;
u8 reserved4[4];
__le32 device_error;
u8 reserved5[4];
__le64 error_details;
__le32 device_reset;
__le32 power_action;
u8 reserved6[104];
};
/*
* controller registers
*
* These are defined by the PMC implementation.
*
* Some registers (those named sis_*) are only used when in
* legacy SIS mode before we transition the controller into
* PQI mode. There are a number of other SIS mode registers,
* but we don't use them, so only the SIS registers that we
* care about are defined here. The offsets mentioned in the
* comments are the offsets from the PCIe BAR 0.
*/
struct pqi_ctrl_registers {
u8 reserved[0x20];
__le32 sis_host_to_ctrl_doorbell; /* 20h */
u8 reserved1[0x34 - (0x20 + sizeof(__le32))];
__le32 sis_interrupt_mask; /* 34h */
u8 reserved2[0x9c - (0x34 + sizeof(__le32))];
__le32 sis_ctrl_to_host_doorbell; /* 9Ch */
u8 reserved3[0xa0 - (0x9c + sizeof(__le32))];
__le32 sis_ctrl_to_host_doorbell_clear; /* A0h */
u8 reserved4[0xb0 - (0xa0 + sizeof(__le32))];
__le32 sis_driver_scratch; /* B0h */
u8 reserved5[0xbc - (0xb0 + sizeof(__le32))];
__le32 sis_firmware_status; /* BCh */
u8 reserved6[0x1000 - (0xbc + sizeof(__le32))];
__le32 sis_mailbox[8]; /* 1000h */
u8 reserved7[0x4000 - (0x1000 + (sizeof(__le32) * 8))];
/*
* The PQI spec states that the PQI registers should be at
* offset 0 from the PCIe BAR 0. However, we can't map
* them at offset 0 because that would break compatibility
* with the SIS registers. So we map them at offset 4000h.
*/
struct pqi_device_registers pqi_registers; /* 4000h */
};
#define PQI_DEVICE_REGISTERS_OFFSET 0x4000
enum pqi_io_path {
RAID_PATH = 0,
AIO_PATH = 1
};
struct pqi_sg_descriptor {
__le64 address;
__le32 length;
__le32 flags;
};
/* manifest constants for the flags field of pqi_sg_descriptor */
#define CISS_SG_LAST 0x40000000
#define CISS_SG_CHAIN 0x80000000
struct pqi_iu_header {
u8 iu_type;
u8 reserved;
__le16 iu_length; /* in bytes - does not include the length */
/* of this header */
__le16 response_queue_id; /* specifies the OQ where the */
/* response IU is to be delivered */
u8 work_area[2]; /* reserved for driver use */
};
/*
* According to the PQI spec, the IU header is only the first 4 bytes of our
* pqi_iu_header structure.
*/
#define PQI_REQUEST_HEADER_LENGTH 4
struct pqi_general_admin_request {
struct pqi_iu_header header;
__le16 request_id;
u8 function_code;
union {
struct {
u8 reserved[33];
__le32 buffer_length;
struct pqi_sg_descriptor sg_descriptor;
} report_device_capability;
struct {
u8 reserved;
__le16 queue_id;
u8 reserved1[2];
__le64 element_array_addr;
__le64 ci_addr;
__le16 num_elements;
__le16 element_length;
u8 queue_protocol;
u8 reserved2[23];
__le32 vendor_specific;
} create_operational_iq;
struct {
u8 reserved;
__le16 queue_id;
u8 reserved1[2];
__le64 element_array_addr;
__le64 pi_addr;
__le16 num_elements;
__le16 element_length;
u8 queue_protocol;
u8 reserved2[3];
__le16 int_msg_num;
__le16 coalescing_count;
__le32 min_coalescing_time;
__le32 max_coalescing_time;
u8 reserved3[8];
__le32 vendor_specific;
} create_operational_oq;
struct {
u8 reserved;
__le16 queue_id;
u8 reserved1[50];
} delete_operational_queue;
struct {
u8 reserved;
__le16 queue_id;
u8 reserved1[46];
__le32 vendor_specific;
} change_operational_iq_properties;
} data;
};
struct pqi_general_admin_response {
struct pqi_iu_header header;
__le16 request_id;
u8 function_code;
u8 status;
union {
struct {
u8 status_descriptor[4];
__le64 iq_pi_offset;
u8 reserved[40];
} create_operational_iq;
struct {
u8 status_descriptor[4];
__le64 oq_ci_offset;
u8 reserved[40];
} create_operational_oq;
} data;
};
struct pqi_iu_layer_descriptor {
u8 inbound_spanning_supported : 1;
u8 reserved : 7;
u8 reserved1[5];
__le16 max_inbound_iu_length;
u8 outbound_spanning_supported : 1;
u8 reserved2 : 7;
u8 reserved3[5];
__le16 max_outbound_iu_length;
};
struct pqi_device_capability {
__le16 data_length;
u8 reserved[6];
u8 iq_arbitration_priority_support_bitmask;
u8 maximum_aw_a;
u8 maximum_aw_b;
u8 maximum_aw_c;
u8 max_arbitration_burst : 3;
u8 reserved1 : 4;
u8 iqa : 1;
u8 reserved2[2];
u8 iq_freeze : 1;
u8 reserved3 : 7;
__le16 max_inbound_queues;
__le16 max_elements_per_iq;
u8 reserved4[4];
__le16 max_iq_element_length;
__le16 min_iq_element_length;
u8 reserved5[2];
__le16 max_outbound_queues;
__le16 max_elements_per_oq;
__le16 intr_coalescing_time_granularity;
__le16 max_oq_element_length;
__le16 min_oq_element_length;
u8 reserved6[24];
struct pqi_iu_layer_descriptor iu_layer_descriptors[32];
};
#define PQI_MAX_EMBEDDED_SG_DESCRIPTORS 4
struct pqi_raid_path_request {
struct pqi_iu_header header;
__le16 request_id;
__le16 nexus_id;
__le32 buffer_length;
u8 lun_number[8];
__le16 protocol_specific;
u8 data_direction : 2;
u8 partial : 1;
u8 reserved1 : 4;
u8 fence : 1;
__le16 error_index;
u8 reserved2;
u8 task_attribute : 3;
u8 command_priority : 4;
u8 reserved3 : 1;
u8 reserved4 : 2;
u8 additional_cdb_bytes_usage : 3;
u8 reserved5 : 3;
u8 cdb[32];
struct pqi_sg_descriptor
sg_descriptors[PQI_MAX_EMBEDDED_SG_DESCRIPTORS];
};
struct pqi_aio_path_request {
struct pqi_iu_header header;
__le16 request_id;
u8 reserved1[2];
__le32 nexus_id;
__le32 buffer_length;
u8 data_direction : 2;
u8 partial : 1;
u8 memory_type : 1;
u8 fence : 1;
u8 encryption_enable : 1;
u8 reserved2 : 2;
u8 task_attribute : 3;
u8 command_priority : 4;
u8 reserved3 : 1;
__le16 data_encryption_key_index;
__le32 encrypt_tweak_lower;
__le32 encrypt_tweak_upper;
u8 cdb[16];
__le16 error_index;
u8 num_sg_descriptors;
u8 cdb_length;
u8 lun_number[8];
u8 reserved4[4];
struct pqi_sg_descriptor
sg_descriptors[PQI_MAX_EMBEDDED_SG_DESCRIPTORS];
};
struct pqi_io_response {
struct pqi_iu_header header;
__le16 request_id;
__le16 error_index;
u8 reserved2[4];
};
struct pqi_general_management_request {
struct pqi_iu_header header;
__le16 request_id;
union {
struct {
u8 reserved[2];
__le32 buffer_length;
struct pqi_sg_descriptor sg_descriptors[3];
} report_event_configuration;
struct {
__le16 global_event_oq_id;
__le32 buffer_length;
struct pqi_sg_descriptor sg_descriptors[3];
} set_event_configuration;
} data;
};
struct pqi_event_descriptor {
u8 event_type;
u8 reserved;
__le16 oq_id;
};
struct pqi_event_config {
u8 reserved[2];
u8 num_event_descriptors;
u8 reserved1;
struct pqi_event_descriptor descriptors[1];
};
#define PQI_MAX_EVENT_DESCRIPTORS 255
struct pqi_event_response {
struct pqi_iu_header header;
u8 event_type;
u8 reserved2 : 7;
u8 request_acknowlege : 1;
__le16 event_id;
__le32 additional_event_id;
u8 data[16];
};
struct pqi_event_acknowledge_request {
struct pqi_iu_header header;
u8 event_type;
u8 reserved2;
__le16 event_id;
__le32 additional_event_id;
};
struct pqi_task_management_request {
struct pqi_iu_header header;
__le16 request_id;
__le16 nexus_id;
u8 reserved[4];
u8 lun_number[8];
__le16 protocol_specific;
__le16 outbound_queue_id_to_manage;
__le16 request_id_to_manage;
u8 task_management_function;
u8 reserved2 : 7;
u8 fence : 1;
};
#define SOP_TASK_MANAGEMENT_LUN_RESET 0x8
struct pqi_task_management_response {
struct pqi_iu_header header;
__le16 request_id;
__le16 nexus_id;
u8 additional_response_info[3];
u8 response_code;
};
struct pqi_aio_error_info {
u8 status;
u8 service_response;
u8 data_present;
u8 reserved;
__le32 residual_count;
__le16 data_length;
__le16 reserved1;
u8 data[256];
};
struct pqi_raid_error_info {
u8 data_in_result;
u8 data_out_result;
u8 reserved[3];
u8 status;
__le16 status_qualifier;
__le16 sense_data_length;
__le16 response_data_length;
__le32 data_in_transferred;
__le32 data_out_transferred;
u8 data[256];
};
#define PQI_REQUEST_IU_TASK_MANAGEMENT 0x13
#define PQI_REQUEST_IU_RAID_PATH_IO 0x14
#define PQI_REQUEST_IU_AIO_PATH_IO 0x15
#define PQI_REQUEST_IU_GENERAL_ADMIN 0x60
#define PQI_REQUEST_IU_REPORT_VENDOR_EVENT_CONFIG 0x72
#define PQI_REQUEST_IU_SET_VENDOR_EVENT_CONFIG 0x73
#define PQI_REQUEST_IU_ACKNOWLEDGE_VENDOR_EVENT 0xf6
#define PQI_RESPONSE_IU_GENERAL_MANAGEMENT 0x81
#define PQI_RESPONSE_IU_TASK_MANAGEMENT 0x93
#define PQI_RESPONSE_IU_GENERAL_ADMIN 0xe0
#define PQI_RESPONSE_IU_RAID_PATH_IO_SUCCESS 0xf0
#define PQI_RESPONSE_IU_AIO_PATH_IO_SUCCESS 0xf1
#define PQI_RESPONSE_IU_RAID_PATH_IO_ERROR 0xf2
#define PQI_RESPONSE_IU_AIO_PATH_IO_ERROR 0xf3
#define PQI_RESPONSE_IU_AIO_PATH_DISABLED 0xf4
#define PQI_RESPONSE_IU_VENDOR_EVENT 0xf5
#define PQI_GENERAL_ADMIN_FUNCTION_REPORT_DEVICE_CAPABILITY 0x0
#define PQI_GENERAL_ADMIN_FUNCTION_CREATE_IQ 0x10
#define PQI_GENERAL_ADMIN_FUNCTION_CREATE_OQ 0x11
#define PQI_GENERAL_ADMIN_FUNCTION_DELETE_IQ 0x12
#define PQI_GENERAL_ADMIN_FUNCTION_DELETE_OQ 0x13
#define PQI_GENERAL_ADMIN_FUNCTION_CHANGE_IQ_PROPERTY 0x14
#define PQI_GENERAL_ADMIN_STATUS_SUCCESS 0x0
#define PQI_IQ_PROPERTY_IS_AIO_QUEUE 0x1
#define PQI_GENERAL_ADMIN_IU_LENGTH 0x3c
#define PQI_PROTOCOL_SOP 0x0
#define PQI_DATA_IN_OUT_GOOD 0x0
#define PQI_DATA_IN_OUT_UNDERFLOW 0x1
#define PQI_DATA_IN_OUT_BUFFER_ERROR 0x40
#define PQI_DATA_IN_OUT_BUFFER_OVERFLOW 0x41
#define PQI_DATA_IN_OUT_BUFFER_OVERFLOW_DESCRIPTOR_AREA 0x42
#define PQI_DATA_IN_OUT_BUFFER_OVERFLOW_BRIDGE 0x43
#define PQI_DATA_IN_OUT_PCIE_FABRIC_ERROR 0x60
#define PQI_DATA_IN_OUT_PCIE_COMPLETION_TIMEOUT 0x61
#define PQI_DATA_IN_OUT_PCIE_COMPLETER_ABORT_RECEIVED 0x62
#define PQI_DATA_IN_OUT_PCIE_UNSUPPORTED_REQUEST_RECEIVED 0x63
#define PQI_DATA_IN_OUT_PCIE_ECRC_CHECK_FAILED 0x64
#define PQI_DATA_IN_OUT_PCIE_UNSUPPORTED_REQUEST 0x65
#define PQI_DATA_IN_OUT_PCIE_ACS_VIOLATION 0x66
#define PQI_DATA_IN_OUT_PCIE_TLP_PREFIX_BLOCKED 0x67
#define PQI_DATA_IN_OUT_PCIE_POISONED_MEMORY_READ 0x6F
#define PQI_DATA_IN_OUT_ERROR 0xf0
#define PQI_DATA_IN_OUT_PROTOCOL_ERROR 0xf1
#define PQI_DATA_IN_OUT_HARDWARE_ERROR 0xf2
#define PQI_DATA_IN_OUT_UNSOLICITED_ABORT 0xf3
#define PQI_DATA_IN_OUT_ABORTED 0xf4
#define PQI_DATA_IN_OUT_TIMEOUT 0xf5
#define CISS_CMD_STATUS_SUCCESS 0x0
#define CISS_CMD_STATUS_TARGET_STATUS 0x1
#define CISS_CMD_STATUS_DATA_UNDERRUN 0x2
#define CISS_CMD_STATUS_DATA_OVERRUN 0x3
#define CISS_CMD_STATUS_INVALID 0x4
#define CISS_CMD_STATUS_PROTOCOL_ERROR 0x5
#define CISS_CMD_STATUS_HARDWARE_ERROR 0x6
#define CISS_CMD_STATUS_CONNECTION_LOST 0x7
#define CISS_CMD_STATUS_ABORTED 0x8
#define CISS_CMD_STATUS_ABORT_FAILED 0x9
#define CISS_CMD_STATUS_UNSOLICITED_ABORT 0xa
#define CISS_CMD_STATUS_TIMEOUT 0xb
#define CISS_CMD_STATUS_UNABORTABLE 0xc
#define CISS_CMD_STATUS_TMF 0xd
#define CISS_CMD_STATUS_AIO_DISABLED 0xe
#define PQI_NUM_EVENT_QUEUE_ELEMENTS 32
#define PQI_EVENT_OQ_ELEMENT_LENGTH sizeof(struct pqi_event_response)
#define PQI_EVENT_TYPE_HOTPLUG 0x1
#define PQI_EVENT_TYPE_HARDWARE 0x2
#define PQI_EVENT_TYPE_PHYSICAL_DEVICE 0x4
#define PQI_EVENT_TYPE_LOGICAL_DEVICE 0x5
#define PQI_EVENT_TYPE_AIO_STATE_CHANGE 0xfd
#define PQI_EVENT_TYPE_AIO_CONFIG_CHANGE 0xfe
#define PQI_EVENT_TYPE_HEARTBEAT 0xff
#pragma pack()
#define PQI_ERROR_BUFFER_ELEMENT_LENGTH \
sizeof(struct pqi_raid_error_info)
/* these values are based on our implementation */
#define PQI_ADMIN_IQ_NUM_ELEMENTS 8
#define PQI_ADMIN_OQ_NUM_ELEMENTS 20
#define PQI_ADMIN_IQ_ELEMENT_LENGTH 64
#define PQI_ADMIN_OQ_ELEMENT_LENGTH 64
#define PQI_OPERATIONAL_IQ_ELEMENT_LENGTH 128
#define PQI_OPERATIONAL_OQ_ELEMENT_LENGTH 16
#define PQI_MIN_MSIX_VECTORS 1
#define PQI_MAX_MSIX_VECTORS 64
/* these values are defined by the PQI spec */
#define PQI_MAX_NUM_ELEMENTS_ADMIN_QUEUE 255
#define PQI_MAX_NUM_ELEMENTS_OPERATIONAL_QUEUE 65535
#define PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT 64
#define PQI_QUEUE_ELEMENT_LENGTH_ALIGNMENT 16
#define PQI_ADMIN_INDEX_ALIGNMENT 64
#define PQI_OPERATIONAL_INDEX_ALIGNMENT 4
#define PQI_MIN_OPERATIONAL_QUEUE_ID 1
#define PQI_MAX_OPERATIONAL_QUEUE_ID 65535
#define PQI_AIO_SERV_RESPONSE_COMPLETE 0
#define PQI_AIO_SERV_RESPONSE_FAILURE 1
#define PQI_AIO_SERV_RESPONSE_TMF_COMPLETE 2
#define PQI_AIO_SERV_RESPONSE_TMF_SUCCEEDED 3
#define PQI_AIO_SERV_RESPONSE_TMF_REJECTED 4
#define PQI_AIO_SERV_RESPONSE_TMF_INCORRECT_LUN 5
#define PQI_AIO_STATUS_IO_ERROR 0x1
#define PQI_AIO_STATUS_IO_ABORTED 0x2
#define PQI_AIO_STATUS_NO_PATH_TO_DEVICE 0x3
#define PQI_AIO_STATUS_INVALID_DEVICE 0x4
#define PQI_AIO_STATUS_AIO_PATH_DISABLED 0xe
#define PQI_AIO_STATUS_UNDERRUN 0x51
#define PQI_AIO_STATUS_OVERRUN 0x75
typedef u32 pqi_index_t;
/* SOP data direction flags */
#define SOP_NO_DIRECTION_FLAG 0
#define SOP_WRITE_FLAG 1 /* host writes data to Data-Out */
/* buffer */
#define SOP_READ_FLAG 2 /* host receives data from Data-In */
/* buffer */
#define SOP_BIDIRECTIONAL 3 /* data is transferred from the */
/* Data-Out buffer and data is */
/* transferred to the Data-In buffer */
#define SOP_TASK_ATTRIBUTE_SIMPLE 0
#define SOP_TASK_ATTRIBUTE_HEAD_OF_QUEUE 1
#define SOP_TASK_ATTRIBUTE_ORDERED 2
#define SOP_TASK_ATTRIBUTE_ACA 4
#define SOP_TMF_COMPLETE 0x0
#define SOP_TMF_FUNCTION_SUCCEEDED 0x8
/* additional CDB bytes usage field codes */
#define SOP_ADDITIONAL_CDB_BYTES_0 0 /* 16-byte CDB */
#define SOP_ADDITIONAL_CDB_BYTES_4 1 /* 20-byte CDB */
#define SOP_ADDITIONAL_CDB_BYTES_8 2 /* 24-byte CDB */
#define SOP_ADDITIONAL_CDB_BYTES_12 3 /* 28-byte CDB */
#define SOP_ADDITIONAL_CDB_BYTES_16 4 /* 32-byte CDB */
/*
* The purpose of this structure is to obtain proper alignment of objects in
* an admin queue pair.
*/
struct pqi_admin_queues_aligned {
__aligned(PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT)
u8 iq_element_array[PQI_ADMIN_IQ_ELEMENT_LENGTH]
[PQI_ADMIN_IQ_NUM_ELEMENTS];
__aligned(PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT)
u8 oq_element_array[PQI_ADMIN_OQ_ELEMENT_LENGTH]
[PQI_ADMIN_OQ_NUM_ELEMENTS];
__aligned(PQI_ADMIN_INDEX_ALIGNMENT) pqi_index_t iq_ci;
__aligned(PQI_ADMIN_INDEX_ALIGNMENT) pqi_index_t oq_pi;
};
struct pqi_admin_queues {
void *iq_element_array;
void *oq_element_array;
volatile pqi_index_t *iq_ci;
volatile pqi_index_t *oq_pi;
dma_addr_t iq_element_array_bus_addr;
dma_addr_t oq_element_array_bus_addr;
dma_addr_t iq_ci_bus_addr;
dma_addr_t oq_pi_bus_addr;
__le32 __iomem *iq_pi;
pqi_index_t iq_pi_copy;
__le32 __iomem *oq_ci;
pqi_index_t oq_ci_copy;
struct task_struct *task;
u16 int_msg_num;
};
struct pqi_queue_group {
struct pqi_ctrl_info *ctrl_info; /* backpointer */
u16 iq_id[2];
u16 oq_id;
u16 int_msg_num;
void *iq_element_array[2];
void *oq_element_array;
dma_addr_t iq_element_array_bus_addr[2];
dma_addr_t oq_element_array_bus_addr;
__le32 __iomem *iq_pi[2];
pqi_index_t iq_pi_copy[2];
volatile pqi_index_t *iq_ci[2];
volatile pqi_index_t *oq_pi;
dma_addr_t iq_ci_bus_addr[2];
dma_addr_t oq_pi_bus_addr;
__le32 __iomem *oq_ci;
pqi_index_t oq_ci_copy;
spinlock_t submit_lock[2]; /* protect submission queue */
struct list_head request_list[2];
};
struct pqi_event_queue {
u16 oq_id;
u16 int_msg_num;
void *oq_element_array;
volatile pqi_index_t *oq_pi;
dma_addr_t oq_element_array_bus_addr;
dma_addr_t oq_pi_bus_addr;
__le32 __iomem *oq_ci;
pqi_index_t oq_ci_copy;
};
#define PQI_DEFAULT_QUEUE_GROUP 0
#define PQI_MAX_QUEUE_GROUPS PQI_MAX_MSIX_VECTORS
struct pqi_encryption_info {
u16 data_encryption_key_index;
u32 encrypt_tweak_lower;
u32 encrypt_tweak_upper;
};
#define PQI_MAX_OUTSTANDING_REQUESTS ((u32)~0)
#define PQI_MAX_TRANSFER_SIZE (4 * 1024U * 1024U)
#define RAID_MAP_MAX_ENTRIES 1024
#define PQI_PHYSICAL_DEVICE_BUS 0
#define PQI_RAID_VOLUME_BUS 1
#define PQI_HBA_BUS 2
#define PQI_MAX_BUS PQI_HBA_BUS
#pragma pack(1)
struct report_lun_header {
__be32 list_length;
u8 extended_response;
u8 reserved[3];
};
struct report_log_lun_extended_entry {
u8 lunid[8];
u8 volume_id[16];
};
struct report_log_lun_extended {
struct report_lun_header header;
struct report_log_lun_extended_entry lun_entries[1];
};
struct report_phys_lun_extended_entry {
u8 lunid[8];
__be64 wwid;
u8 device_type;
u8 device_flags;
u8 lun_count; /* number of LUNs in a multi-LUN device */
u8 redundant_paths;
u32 aio_handle;
};
/* for device_flags field of struct report_phys_lun_extended_entry */
#define REPORT_PHYS_LUN_DEV_FLAG_NON_DISK 0x1
#define REPORT_PHYS_LUN_DEV_FLAG_AIO_ENABLED 0x8
struct report_phys_lun_extended {
struct report_lun_header header;
struct report_phys_lun_extended_entry lun_entries[1];
};
struct raid_map_disk_data {
u32 aio_handle;
u8 xor_mult[2];
u8 reserved[2];
};
/* constants for flags field of RAID map */
#define RAID_MAP_ENCRYPTION_ENABLED 0x1
struct raid_map {
__le32 structure_size; /* size of entire structure in bytes */
__le32 volume_blk_size; /* bytes / block in the volume */
__le64 volume_blk_cnt; /* logical blocks on the volume */
u8 phys_blk_shift; /* shift factor to convert between */
/* units of logical blocks and */
/* physical disk blocks */
u8 parity_rotation_shift; /* shift factor to convert between */
/* units of logical stripes and */
/* physical stripes */
__le16 strip_size; /* blocks used on each disk / stripe */
__le64 disk_starting_blk; /* first disk block used in volume */
__le64 disk_blk_cnt; /* disk blocks used by volume / disk */
__le16 data_disks_per_row; /* data disk entries / row in the map */
__le16 metadata_disks_per_row; /* mirror/parity disk entries / row */
/* in the map */
__le16 row_cnt; /* rows in each layout map */
__le16 layout_map_count; /* layout maps (1 map per */
/* mirror parity group) */
__le16 flags;
__le16 data_encryption_key_index;
u8 reserved[16];
struct raid_map_disk_data disk_data[RAID_MAP_MAX_ENTRIES];
};
#pragma pack()
#define RAID_CTLR_LUNID "\0\0\0\0\0\0\0\0"
struct pqi_scsi_dev {
int devtype; /* as reported by INQUIRY commmand */
u8 device_type; /* as reported by */
/* BMIC_IDENTIFY_PHYSICAL_DEVICE */
/* only valid for devtype = TYPE_DISK */
int bus;
int target;
int lun;
u8 scsi3addr[8];
__be64 wwid;
u8 volume_id[16];
u8 is_physical_device : 1;
u8 target_lun_valid : 1;
u8 expose_device : 1;
u8 no_uld_attach : 1;
u8 aio_enabled : 1; /* only valid for physical disks */
u8 device_gone : 1;
u8 new_device : 1;
u8 keep_device : 1;
u8 volume_offline : 1;
u8 vendor[8]; /* bytes 8-15 of inquiry data */
u8 model[16]; /* bytes 16-31 of inquiry data */
u64 sas_address;
u8 raid_level;
u16 queue_depth; /* max. queue_depth for this device */
u16 advertised_queue_depth;
u32 aio_handle;
u8 volume_status;
u8 active_path_index;
u8 path_map;
u8 bay;
u8 box[8];
u16 phys_connector[8];
int offload_configured; /* I/O accel RAID offload configured */
int offload_enabled; /* I/O accel RAID offload enabled */
int offload_enabled_pending;
int offload_to_mirror; /* Send next I/O accelerator RAID */
/* offload request to mirror drive. */
struct raid_map *raid_map; /* I/O accelerator RAID map */
struct pqi_sas_port *sas_port;
struct scsi_device *sdev;
struct list_head scsi_device_list_entry;
struct list_head new_device_list_entry;
struct list_head add_list_entry;
struct list_head delete_list_entry;
};
/* VPD inquiry pages */
#define SCSI_VPD_SUPPORTED_PAGES 0x0 /* standard page */
#define SCSI_VPD_DEVICE_ID 0x83 /* standard page */
#define CISS_VPD_LV_DEVICE_GEOMETRY 0xc1 /* vendor-specific page */
#define CISS_VPD_LV_OFFLOAD_STATUS 0xc2 /* vendor-specific page */
#define CISS_VPD_LV_STATUS 0xc3 /* vendor-specific page */
#define VPD_PAGE (1 << 8)
#pragma pack(1)
/* structure for CISS_VPD_LV_STATUS */
struct ciss_vpd_logical_volume_status {
u8 peripheral_info;
u8 page_code;
u8 reserved;
u8 page_length;
u8 volume_status;
u8 reserved2[3];
__be32 flags;
};
#pragma pack()
/* constants for volume_status field of ciss_vpd_logical_volume_status */
#define CISS_LV_OK 0
#define CISS_LV_FAILED 1
#define CISS_LV_NOT_CONFIGURED 2
#define CISS_LV_DEGRADED 3
#define CISS_LV_READY_FOR_RECOVERY 4
#define CISS_LV_UNDERGOING_RECOVERY 5
#define CISS_LV_WRONG_PHYSICAL_DRIVE_REPLACED 6
#define CISS_LV_PHYSICAL_DRIVE_CONNECTION_PROBLEM 7
#define CISS_LV_HARDWARE_OVERHEATING 8
#define CISS_LV_HARDWARE_HAS_OVERHEATED 9
#define CISS_LV_UNDERGOING_EXPANSION 10
#define CISS_LV_NOT_AVAILABLE 11
#define CISS_LV_QUEUED_FOR_EXPANSION 12
#define CISS_LV_DISABLED_SCSI_ID_CONFLICT 13
#define CISS_LV_EJECTED 14
#define CISS_LV_UNDERGOING_ERASE 15
/* state 16 not used */
#define CISS_LV_READY_FOR_PREDICTIVE_SPARE_REBUILD 17
#define CISS_LV_UNDERGOING_RPI 18
#define CISS_LV_PENDING_RPI 19
#define CISS_LV_ENCRYPTED_NO_KEY 20
/* state 21 not used */
#define CISS_LV_UNDERGOING_ENCRYPTION 22
#define CISS_LV_UNDERGOING_ENCRYPTION_REKEYING 23
#define CISS_LV_ENCRYPTED_IN_NON_ENCRYPTED_CONTROLLER 24
#define CISS_LV_PENDING_ENCRYPTION 25
#define CISS_LV_PENDING_ENCRYPTION_REKEYING 26
#define CISS_LV_NOT_SUPPORTED 27
#define CISS_LV_STATUS_UNAVAILABLE 255
/* constants for flags field of ciss_vpd_logical_volume_status */
#define CISS_LV_FLAGS_NO_HOST_IO 0x1 /* volume not available for */
/* host I/O */
/* for SAS hosts and SAS expanders */
struct pqi_sas_node {
struct device *parent_dev;
struct list_head port_list_head;
};
struct pqi_sas_port {
struct list_head port_list_entry;
u64 sas_address;
struct sas_port *port;
int next_phy_index;
struct list_head phy_list_head;
struct pqi_sas_node *parent_node;
struct sas_rphy *rphy;
};
struct pqi_sas_phy {
struct list_head phy_list_entry;
struct sas_phy *phy;
struct pqi_sas_port *parent_port;
bool added_to_port;
};
struct pqi_io_request {
atomic_t refcount;
u16 index;
void (*io_complete_callback)(struct pqi_io_request *io_request,
void *context);
void *context;
int status;
struct scsi_cmnd *scmd;
void *error_info;
struct pqi_sg_descriptor *sg_chain_buffer;
dma_addr_t sg_chain_buffer_dma_handle;
void *iu;
struct list_head request_list_entry;
};
/* for indexing into the pending_events[] field of struct pqi_ctrl_info */
#define PQI_EVENT_HEARTBEAT 0
#define PQI_EVENT_HOTPLUG 1
#define PQI_EVENT_HARDWARE 2
#define PQI_EVENT_PHYSICAL_DEVICE 3
#define PQI_EVENT_LOGICAL_DEVICE 4
#define PQI_EVENT_AIO_STATE_CHANGE 5
#define PQI_EVENT_AIO_CONFIG_CHANGE 6
#define PQI_NUM_SUPPORTED_EVENTS 7
struct pqi_event {
bool pending;
u8 event_type;
__le16 event_id;
__le32 additional_event_id;
};
#define PQI_RESERVED_IO_SLOTS_LUN_RESET 1
#define PQI_RESERVED_IO_SLOTS_EVENT_ACK PQI_NUM_SUPPORTED_EVENTS
#define PQI_RESERVED_IO_SLOTS_SYNCHRONOUS_REQUESTS 3
#define PQI_RESERVED_IO_SLOTS \
(PQI_RESERVED_IO_SLOTS_LUN_RESET + PQI_RESERVED_IO_SLOTS_EVENT_ACK + \
PQI_RESERVED_IO_SLOTS_SYNCHRONOUS_REQUESTS)
struct pqi_ctrl_info {
unsigned int ctrl_id;
struct pci_dev *pci_dev;
char firmware_version[11];
void __iomem *iomem_base;
struct pqi_ctrl_registers __iomem *registers;
struct pqi_device_registers __iomem *pqi_registers;
u32 max_sg_entries;
u32 config_table_offset;
u32 config_table_length;
u16 max_inbound_queues;
u16 max_elements_per_iq;
u16 max_iq_element_length;
u16 max_outbound_queues;
u16 max_elements_per_oq;
u16 max_oq_element_length;
u32 max_transfer_size;
u32 max_outstanding_requests;
u32 max_io_slots;
unsigned int scsi_ml_can_queue;
unsigned short sg_tablesize;
unsigned int max_sectors;
u32 error_buffer_length;
void *error_buffer;
dma_addr_t error_buffer_dma_handle;
size_t sg_chain_buffer_length;
unsigned int num_queue_groups;
unsigned int num_active_queue_groups;
u16 num_elements_per_iq;
u16 num_elements_per_oq;
u16 max_inbound_iu_length_per_firmware;
u16 max_inbound_iu_length;
unsigned int max_sg_per_iu;
void *admin_queue_memory_base;
u32 admin_queue_memory_length;
dma_addr_t admin_queue_memory_base_dma_handle;
void *queue_memory_base;
u32 queue_memory_length;
dma_addr_t queue_memory_base_dma_handle;
struct pqi_admin_queues admin_queues;
struct pqi_queue_group queue_groups[PQI_MAX_QUEUE_GROUPS];
struct pqi_event_queue event_queue;
int max_msix_vectors;
int num_msix_vectors_enabled;
int num_msix_vectors_initialized;
int event_irq;
struct Scsi_Host *scsi_host;
struct mutex scan_mutex;
u8 inbound_spanning_supported : 1;
u8 outbound_spanning_supported : 1;
u8 pqi_mode_enabled : 1;
u8 controller_online : 1;
u8 heartbeat_timer_started : 1;
struct list_head scsi_device_list;
spinlock_t scsi_device_list_lock;
struct delayed_work rescan_work;
struct delayed_work update_time_work;
struct pqi_sas_node *sas_host;
u64 sas_address;
struct pqi_io_request *io_request_pool;
u16 next_io_request_slot;
struct pqi_event pending_events[PQI_NUM_SUPPORTED_EVENTS];
struct work_struct event_work;
atomic_t num_interrupts;
int previous_num_interrupts;
unsigned int num_heartbeats_requested;
struct timer_list heartbeat_timer;
struct semaphore sync_request_sem;
struct semaphore lun_reset_sem;
};
enum pqi_ctrl_mode {
UNKNOWN,
PQI_MODE
};
/*
* assume worst case: SATA queue depth of 31 minus 4 internal firmware commands
*/
#define PQI_PHYSICAL_DISK_DEFAULT_MAX_QUEUE_DEPTH 27
/* 0 = no limit */
#define PQI_LOGICAL_DRIVE_DEFAULT_MAX_QUEUE_DEPTH 0
/* CISS commands */
#define CISS_READ 0xc0
#define CISS_REPORT_LOG 0xc2 /* Report Logical LUNs */
#define CISS_REPORT_PHYS 0xc3 /* Report Physical LUNs */
#define CISS_GET_RAID_MAP 0xc8
/* constants for CISS_REPORT_LOG/CISS_REPORT_PHYS commands */
#define CISS_REPORT_LOG_EXTENDED 0x1
#define CISS_REPORT_PHYS_EXTENDED 0x2
/* BMIC commands */
#define BMIC_IDENTIFY_CONTROLLER 0x11
#define BMIC_IDENTIFY_PHYSICAL_DEVICE 0x15
#define BMIC_READ 0x26
#define BMIC_WRITE 0x27
#define BMIC_SENSE_CONTROLLER_PARAMETERS 0x64
#define BMIC_SENSE_SUBSYSTEM_INFORMATION 0x66
#define BMIC_WRITE_HOST_WELLNESS 0xa5
#define BMIC_CACHE_FLUSH 0xc2
#define SA_CACHE_FLUSH 0x01
#define MASKED_DEVICE(lunid) ((lunid)[3] & 0xc0)
#define CISS_GET_BUS(lunid) ((lunid)[7] & 0x3f)
#define CISS_GET_LEVEL_2_TARGET(lunid) ((lunid)[6])
#define CISS_GET_DRIVE_NUMBER(lunid) \
(((CISS_GET_BUS((lunid)) - 1) << 8) + \
CISS_GET_LEVEL_2_TARGET((lunid)))
#define NO_TIMEOUT ((unsigned long) -1)
#pragma pack(1)
struct bmic_identify_controller {
u8 configured_logical_drive_count;
__le32 configuration_signature;
u8 firmware_version[4];
u8 reserved[145];
__le16 extended_logical_unit_count;
u8 reserved1[34];
__le16 firmware_build_number;
u8 reserved2[100];
u8 controller_mode;
u8 reserved3[32];
};
struct bmic_identify_physical_device {
u8 scsi_bus; /* SCSI Bus number on controller */
u8 scsi_id; /* SCSI ID on this bus */
__le16 block_size; /* sector size in bytes */
__le32 total_blocks; /* number for sectors on drive */
__le32 reserved_blocks; /* controller reserved (RIS) */
u8 model[40]; /* Physical Drive Model */
u8 serial_number[40]; /* Drive Serial Number */
u8 firmware_revision[8]; /* drive firmware revision */
u8 scsi_inquiry_bits; /* inquiry byte 7 bits */
u8 compaq_drive_stamp; /* 0 means drive not stamped */
u8 last_failure_reason;
u8 flags;
u8 more_flags;
u8 scsi_lun; /* SCSI LUN for phys drive */
u8 yet_more_flags;
u8 even_more_flags;
__le32 spi_speed_rules;
u8 phys_connector[2]; /* connector number on controller */
u8 phys_box_on_bus; /* phys enclosure this drive resides */
u8 phys_bay_in_box; /* phys drv bay this drive resides */
__le32 rpm; /* drive rotational speed in RPM */
u8 device_type; /* type of drive */
u8 sata_version; /* only valid when device_type = */
/* BMIC_DEVICE_TYPE_SATA */
__le64 big_total_block_count;
__le64 ris_starting_lba;
__le32 ris_size;
u8 wwid[20];
u8 controller_phy_map[32];
__le16 phy_count;
u8 phy_connected_dev_type[256];
u8 phy_to_drive_bay_num[256];
__le16 phy_to_attached_dev_index[256];
u8 box_index;
u8 reserved;
__le16 extra_physical_drive_flags;
u8 negotiated_link_rate[256];
u8 phy_to_phy_map[256];
u8 redundant_path_present_map;
u8 redundant_path_failure_map;
u8 active_path_number;
__le16 alternate_paths_phys_connector[8];
u8 alternate_paths_phys_box_on_port[8];
u8 multi_lun_device_lun_count;
u8 minimum_good_fw_revision[8];
u8 unique_inquiry_bytes[20];
u8 current_temperature_degreesC;
u8 temperature_threshold_degreesC;
u8 max_temperature_degreesC;
u8 logical_blocks_per_phys_block_exp;
__le16 current_queue_depth_limit;
u8 switch_name[10];
__le16 switch_port;
u8 alternate_paths_switch_name[40];
u8 alternate_paths_switch_port[8];
__le16 power_on_hours;
__le16 percent_endurance_used;
u8 drive_authentication;
u8 smart_carrier_authentication;
u8 smart_carrier_app_fw_version;
u8 smart_carrier_bootloader_fw_version;
u8 encryption_key_name[64];
__le32 misc_drive_flags;
__le16 dek_index;
u8 padding[112];
};
#pragma pack()
int pqi_add_sas_host(struct Scsi_Host *shost, struct pqi_ctrl_info *ctrl_info);
void pqi_delete_sas_host(struct pqi_ctrl_info *ctrl_info);
int pqi_add_sas_device(struct pqi_sas_node *pqi_sas_node,
struct pqi_scsi_dev *device);
void pqi_remove_sas_device(struct pqi_scsi_dev *device);
struct pqi_scsi_dev *pqi_find_device_by_sas_rphy(
struct pqi_ctrl_info *ctrl_info, struct sas_rphy *rphy);
extern struct sas_function_template pqi_sas_transport_functions;
#if !defined(readq)
#define readq readq
static inline u64 readq(const volatile void __iomem *addr)
{
u32 lower32;
u32 upper32;
lower32 = readl(addr);
upper32 = readl(addr + 4);
return ((u64)upper32 << 32) | lower32;
}
#endif
#if !defined(writeq)
#define writeq writeq
static inline void writeq(u64 value, volatile void __iomem *addr)
{
u32 lower32;
u32 upper32;
lower32 = lower_32_bits(value);
upper32 = upper_32_bits(value);
writel(lower32, addr);
writel(upper32, addr + 4);
}
#endif
#endif /* _SMARTPQI_H */
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