From 4fd22c13ad4409ee44a121b54855bb48d2afd58a Mon Sep 17 00:00:00 2001 From: Mahesh Rajashekhara Date: Tue, 18 Dec 2018 17:39:07 -0600 Subject: scsi: smartpqi: add ofa support - when OFA event occurs, driver will stop traffic to RAID/HBA path. Driver waits for all the outstanding requests to complete. - Driver sends OFA event acknowledgment to firmware. - Driver will wait until the new firmware is up and running. - Driver will free up the resources. - Driver calls SIS/PQI initialization and rescans the device list. - Driver will resume the traffic to RAID/HBA path. Reviewed-by: Murthy Bhat Signed-off-by: Mahesh Rajashekhara Signed-off-by: Don Brace Signed-off-by: Martin K. Petersen --- drivers/scsi/smartpqi/smartpqi.h | 76 +++++++++++++++++++++++++++++++++++++--- 1 file changed, 72 insertions(+), 4 deletions(-) (limited to 'drivers/scsi/smartpqi/smartpqi.h') diff --git a/drivers/scsi/smartpqi/smartpqi.h b/drivers/scsi/smartpqi/smartpqi.h index ba499a636f43..af962368818b 100644 --- a/drivers/scsi/smartpqi/smartpqi.h +++ b/drivers/scsi/smartpqi/smartpqi.h @@ -100,6 +100,12 @@ struct pqi_ctrl_registers { struct pqi_device_registers pqi_registers; /* 4000h */ }; +#if ((HZ) < 1000) +#define PQI_HZ 1000 +#else +#define PQI_HZ (HZ) +#endif + #define PQI_DEVICE_REGISTERS_OFFSET 0x4000 enum pqi_io_path { @@ -350,6 +356,10 @@ struct pqi_event_config { #define PQI_MAX_EVENT_DESCRIPTORS 255 +#define PQI_EVENT_OFA_MEMORY_ALLOCATION 0x0 +#define PQI_EVENT_OFA_QUIESCE 0x1 +#define PQI_EVENT_OFA_CANCELLED 0x2 + struct pqi_event_response { struct pqi_iu_header header; u8 event_type; @@ -357,7 +367,17 @@ struct pqi_event_response { u8 request_acknowlege : 1; __le16 event_id; __le32 additional_event_id; - u8 data[16]; + union { + struct { + __le32 bytes_requested; + u8 reserved[12]; + } ofa_memory_allocation; + + struct { + __le16 reason; /* reason for cancellation */ + u8 reserved[14]; + } ofa_cancelled; + } data; }; struct pqi_event_acknowledge_request { @@ -420,6 +440,25 @@ struct pqi_vendor_general_response { }; #define PQI_VENDOR_GENERAL_CONFIG_TABLE_UPDATE 0 +#define PQI_VENDOR_GENERAL_HOST_MEMORY_UPDATE 1 + +#define PQI_OFA_VERSION 1 +#define PQI_OFA_SIGNATURE "OFA_QRM" +#define PQI_OFA_MAX_SG_DESCRIPTORS 64 + +#define PQI_OFA_MEMORY_DESCRIPTOR_LENGTH \ + (offsetof(struct pqi_ofa_memory, sg_descriptor) + \ + (PQI_OFA_MAX_SG_DESCRIPTORS * sizeof(struct pqi_sg_descriptor))) + +struct pqi_ofa_memory { + __le64 signature; /* "OFA_QRM" */ + __le16 version; /* version of this struct(1 = 1st version) */ + u8 reserved[62]; + __le32 bytes_allocated; /* total allocated memory in bytes */ + __le16 num_memory_descriptors; + u8 reserved1[2]; + struct pqi_sg_descriptor sg_descriptor[1]; +}; struct pqi_aio_error_info { u8 status; @@ -526,6 +565,7 @@ struct pqi_raid_error_info { #define PQI_EVENT_TYPE_HARDWARE 0x2 #define PQI_EVENT_TYPE_PHYSICAL_DEVICE 0x4 #define PQI_EVENT_TYPE_LOGICAL_DEVICE 0x5 +#define PQI_EVENT_TYPE_OFA 0xfb #define PQI_EVENT_TYPE_AIO_STATE_CHANGE 0xfd #define PQI_EVENT_TYPE_AIO_CONFIG_CHANGE 0xfe @@ -685,6 +725,7 @@ struct pqi_encryption_info { #define PQI_CONFIG_TABLE_SECTION_FIRMWARE_ERRATA 2 #define PQI_CONFIG_TABLE_SECTION_DEBUG 3 #define PQI_CONFIG_TABLE_SECTION_HEARTBEAT 4 +#define PQI_CONFIG_TABLE_SECTION_SOFT_RESET 5 struct pqi_config_table { u8 signature[8]; /* "CFGTABLE" */ @@ -724,8 +765,9 @@ struct pqi_config_table_firmware_features { /* u8 features_enabled[]; */ }; -#define PQI_FIRMWARE_FEATURE_OFA 0 -#define PQI_FIRMWARE_FEATURE_SMP 1 +#define PQI_FIRMWARE_FEATURE_OFA 0 +#define PQI_FIRMWARE_FEATURE_SMP 1 +#define PQI_FIRMWARE_FEATURE_SOFT_RESET_HANDSHAKE 11 struct pqi_config_table_debug { struct pqi_config_table_section_header header; @@ -737,6 +779,22 @@ struct pqi_config_table_heartbeat { __le32 heartbeat_counter; }; +struct pqi_config_table_soft_reset { + struct pqi_config_table_section_header header; + u8 soft_reset_status; +}; + +#define PQI_SOFT_RESET_INITIATE 0x1 +#define PQI_SOFT_RESET_ABORT 0x2 + +enum pqi_soft_reset_status { + RESET_INITIATE_FIRMWARE, + RESET_INITIATE_DRIVER, + RESET_ABORT, + RESET_NORESPONSE, + RESET_TIMEDOUT +}; + union pqi_reset_register { struct { u32 reset_type : 3; @@ -1000,13 +1058,15 @@ struct pqi_io_request { struct list_head request_list_entry; }; -#define PQI_NUM_SUPPORTED_EVENTS 6 +#define PQI_NUM_SUPPORTED_EVENTS 7 struct pqi_event { bool pending; u8 event_type; __le16 event_id; __le32 additional_event_id; + __le32 ofa_bytes_requested; + __le16 ofa_cancel_reason; }; #define PQI_RESERVED_IO_SLOTS_LUN_RESET 1 @@ -1067,13 +1127,16 @@ struct pqi_ctrl_info { struct mutex scan_mutex; struct mutex lun_reset_mutex; + struct mutex ofa_mutex; /* serialize ofa */ bool controller_online; bool block_requests; bool in_shutdown; + bool in_ofa; u8 inbound_spanning_supported : 1; u8 outbound_spanning_supported : 1; u8 pqi_mode_enabled : 1; u8 pqi_reset_quiesce_supported : 1; + u8 soft_reset_handshake_supported : 1; struct list_head scsi_device_list; spinlock_t scsi_device_list_lock; @@ -1094,6 +1157,7 @@ struct pqi_ctrl_info { int previous_num_interrupts; u32 previous_heartbeat_count; __le32 __iomem *heartbeat_counter; + u8 __iomem *soft_reset_status; struct timer_list heartbeat_timer; struct work_struct ctrl_offline_work; @@ -1105,6 +1169,10 @@ struct pqi_ctrl_info { struct list_head raid_bypass_retry_list; spinlock_t raid_bypass_retry_list_lock; struct work_struct raid_bypass_retry_work; + + struct pqi_ofa_memory *pqi_ofa_mem_virt_addr; + dma_addr_t pqi_ofa_mem_dma_handle; + void **pqi_ofa_chunk_virt_addr; }; enum pqi_ctrl_mode { -- cgit