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linux-next/drivers/scsi/hptiop.h
HighPoint Linux Team ede1e6f8b4 [SCSI] hptiop: HighPoint RocketRAID 3xxx controller driver 
HighPoint RocketRAID 3220/3320 series 8 channel PCI-X SATA RAID Host
Adapters.

Fixes from original submission:

Merge Andrew Morton's patches:
- Provide locking for global list
- Fix debug printks
- uninline function with multiple callsites
- coding style fixups
- remove unneeded casts of void*
- kfree(NULL) is legal
- Don't "succeed" if register_chrdev() failed - otherwise we'll later
  unregister a not-registered chrdev.
- Don't return from hptiop_do_ioctl() with the spinlock held.
- uninline __hpt_do_ioctl()

Update for Arjan van de Ven's comments:
- put all asm/ includes after the linux/ ones
- replace mdelay with msleep
- add pci posting flush
- do not set pci command reqister in map_pci_bar
- do not try merging sg elements in hptiop_buildsgl()
- remove unused outstandingcommands member from hba structure
- remove unimplemented hptiop_abort() handler
- remove typedef u32 hpt_id_t

Other updates:
- fix endianess

Signed-off-by: HighPoint Linux Team <linux@highpoint-tech.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-06-10 10:36:13 -05:00

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/*
* HighPoint RR3xxx controller driver for Linux
* Copyright (C) 2006 HighPoint Technologies, Inc. All Rights Reserved.
*
* 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. See the
* GNU General Public License for more details.
*
* Please report bugs/comments/suggestions to linux@highpoint-tech.com
*
* For more information, visit http://www.highpoint-tech.com
*/
#ifndef _HPTIOP_H_
#define _HPTIOP_H_
/*
* logical device type.
* Identify array (logical device) and physical device.
*/
#define LDT_ARRAY 1
#define LDT_DEVICE 2
/*
* Array types
*/
#define AT_UNKNOWN 0
#define AT_RAID0 1
#define AT_RAID1 2
#define AT_RAID5 3
#define AT_RAID6 4
#define AT_JBOD 7
#define MAX_NAME_LENGTH 36
#define MAX_ARRAYNAME_LEN 16
#define MAX_ARRAY_MEMBERS_V1 8
#define MAX_ARRAY_MEMBERS_V2 16
/* keep definition for source code compatiblity */
#define MAX_ARRAY_MEMBERS MAX_ARRAY_MEMBERS_V1
/*
* array flags
*/
#define ARRAY_FLAG_DISABLED 0x00000001 /* The array is disabled */
#define ARRAY_FLAG_NEEDBUILDING 0x00000002 /* need to be rebuilt */
#define ARRAY_FLAG_REBUILDING 0x00000004 /* in rebuilding process */
#define ARRAY_FLAG_BROKEN 0x00000008 /* broken but still working */
#define ARRAY_FLAG_BOOTDISK 0x00000010 /* has a active partition */
#define ARRAY_FLAG_BOOTMARK 0x00000040 /* array has boot mark set */
#define ARRAY_FLAG_NEED_AUTOREBUILD 0x00000080 /* auto-rebuild should start */
#define ARRAY_FLAG_VERIFYING 0x00000100 /* is being verified */
#define ARRAY_FLAG_INITIALIZING 0x00000200 /* is being initialized */
#define ARRAY_FLAG_TRANSFORMING 0x00000400 /* tranform in progress */
#define ARRAY_FLAG_NEEDTRANSFORM 0x00000800 /* array need tranform */
#define ARRAY_FLAG_NEEDINITIALIZING 0x00001000 /* initialization not done */
#define ARRAY_FLAG_BROKEN_REDUNDANT 0x00002000 /* broken but redundant */
/*
* device flags
*/
#define DEVICE_FLAG_DISABLED 0x00000001 /* device is disabled */
#define DEVICE_FLAG_UNINITIALIZED 0x00010000 /* device is not initialized */
#define DEVICE_FLAG_LEGACY 0x00020000 /* lagacy drive */
#define DEVICE_FLAG_IS_SPARE 0x80000000 /* is a spare disk */
/*
* ioctl codes
*/
#define HPT_CTL_CODE(x) (x+0xFF00)
#define HPT_CTL_CODE_LINUX_TO_IOP(x) ((x)-0xff00)
#define HPT_IOCTL_GET_CONTROLLER_INFO HPT_CTL_CODE(2)
#define HPT_IOCTL_GET_CHANNEL_INFO HPT_CTL_CODE(3)
#define HPT_IOCTL_GET_LOGICAL_DEVICES HPT_CTL_CODE(4)
#define HPT_IOCTL_GET_DRIVER_CAPABILITIES HPT_CTL_CODE(19)
#define HPT_IOCTL_GET_DEVICE_INFO_V3 HPT_CTL_CODE(46)
#define HPT_IOCTL_GET_CONTROLLER_INFO_V2 HPT_CTL_CODE(47)
/*
* Controller information.
*/
struct hpt_controller_info {
u8 chip_type; /* chip type */
u8 interrupt_level; /* IRQ level */
u8 num_buses; /* bus count */
u8 chip_flags;
u8 product_id[MAX_NAME_LENGTH];/* product name */
u8 vendor_id[MAX_NAME_LENGTH]; /* vendor name */
}
__attribute__((packed));
/*
* Channel information.
*/
struct hpt_channel_info {
__le32 io_port; /* IDE Base Port Address */
__le32 control_port; /* IDE Control Port Address */
__le32 devices[2]; /* device connected to this channel */
}
__attribute__((packed));
/*
* Array information.
*/
struct hpt_array_info_v3 {
u8 name[MAX_ARRAYNAME_LEN]; /* array name */
u8 description[64]; /* array description */
u8 create_manager[16]; /* who created it */
__le32 create_time; /* when created it */
u8 array_type; /* array type */
u8 block_size_shift; /* stripe size */
u8 ndisk; /* Number of ID in Members[] */
u8 reserved;
__le32 flags; /* working flags, see ARRAY_FLAG_XXX */
__le32 members[MAX_ARRAY_MEMBERS_V2]; /* member array/disks */
__le32 rebuilding_progress;
__le64 rebuilt_sectors; /* rebuilding point (LBA) for single member */
__le32 transform_source;
__le32 transform_target; /* destination device ID */
__le32 transforming_progress;
__le32 signature; /* persistent identification*/
__le16 critical_members; /* bit mask of critical members */
__le16 reserve2;
__le32 reserve;
}
__attribute__((packed));
/*
* physical device information.
*/
#define MAX_PARENTS_PER_DISK 8
struct hpt_device_info_v2 {
u8 ctlr_id; /* controller id */
u8 path_id; /* bus */
u8 target_id; /* id */
u8 device_mode_setting; /* Current Data Transfer mode: 0-4 PIO0-4 */
/* 5-7 MW DMA0-2, 8-13 UDMA0-5 */
u8 device_type; /* device type */
u8 usable_mode; /* highest usable mode */
#ifdef __BIG_ENDIAN_BITFIELD
u8 NCQ_enabled: 1;
u8 NCQ_supported: 1;
u8 TCQ_enabled: 1;
u8 TCQ_supported: 1;
u8 write_cache_enabled: 1;
u8 write_cache_supported: 1;
u8 read_ahead_enabled: 1;
u8 read_ahead_supported: 1;
u8 reserved6: 6;
u8 spin_up_mode: 2;
#else
u8 read_ahead_supported: 1;
u8 read_ahead_enabled: 1;
u8 write_cache_supported: 1;
u8 write_cache_enabled: 1;
u8 TCQ_supported: 1;
u8 TCQ_enabled: 1;
u8 NCQ_supported: 1;
u8 NCQ_enabled: 1;
u8 spin_up_mode: 2;
u8 reserved6: 6;
#endif
__le32 flags; /* working flags, see DEVICE_FLAG_XXX */
u8 ident[150]; /* (partitial) Identify Data of this device */
__le64 total_free;
__le64 max_free;
__le64 bad_sectors;
__le32 parent_arrays[MAX_PARENTS_PER_DISK];
}
__attribute__((packed));
/*
* Logical device information.
*/
#define INVALID_TARGET_ID 0xFF
#define INVALID_BUS_ID 0xFF
struct hpt_logical_device_info_v3 {
u8 type; /* LDT_ARRAY or LDT_DEVICE */
u8 cache_policy; /* refer to CACHE_POLICY_xxx */
u8 vbus_id; /* vbus sequence in vbus_list */
u8 target_id; /* OS target id. 0xFF is invalid */
/* OS name: DISK $VBusId_$TargetId */
__le64 capacity; /* array capacity */
__le32 parent_array; /* don't use this field for physical
device. use ParentArrays field in
hpt_device_info_v2 */
/* reserved statistic fields */
__le32 stat1;
__le32 stat2;
__le32 stat3;
__le32 stat4;
union {
struct hpt_array_info_v3 array;
struct hpt_device_info_v2 device;
} __attribute__((packed)) u;
}
__attribute__((packed));
/*
* ioctl structure
*/
#define HPT_IOCTL_MAGIC 0xA1B2C3D4
struct hpt_ioctl_u {
u32 magic; /* used to check if it's a valid ioctl packet */
u32 ioctl_code; /* operation control code */
void __user *inbuf; /* input data buffer */
u32 inbuf_size; /* size of input data buffer */
void __user *outbuf; /* output data buffer */
u32 outbuf_size; /* size of output data buffer */
void __user *bytes_returned; /* count of bytes returned */
}
__attribute__((packed));
struct hpt_iopmu
{
__le32 resrved0[4];
__le32 inbound_msgaddr0;
__le32 inbound_msgaddr1;
__le32 outbound_msgaddr0;
__le32 outbound_msgaddr1;
__le32 inbound_doorbell;
__le32 inbound_intstatus;
__le32 inbound_intmask;
__le32 outbound_doorbell;
__le32 outbound_intstatus;
__le32 outbound_intmask;
__le32 reserved1[2];
__le32 inbound_queue;
__le32 outbound_queue;
};
#define IOPMU_QUEUE_EMPTY 0xffffffff
#define IOPMU_QUEUE_MASK_HOST_BITS 0xf0000000
#define IOPMU_QUEUE_ADDR_HOST_BIT 0x80000000
#define IOPMU_OUTBOUND_INT_MSG0 1
#define IOPMU_OUTBOUND_INT_MSG1 2
#define IOPMU_OUTBOUND_INT_DOORBELL 4
#define IOPMU_OUTBOUND_INT_POSTQUEUE 8
#define IOPMU_OUTBOUND_INT_PCI 0x10
#define IOPMU_INBOUND_INT_MSG0 1
#define IOPMU_INBOUND_INT_MSG1 2
#define IOPMU_INBOUND_INT_DOORBELL 4
#define IOPMU_INBOUND_INT_ERROR 8
#define IOPMU_INBOUND_INT_POSTQUEUE 0x10
enum hpt_iopmu_message {
/* host-to-iop messages */
IOPMU_INBOUND_MSG0_NOP = 0,
IOPMU_INBOUND_MSG0_RESET,
IOPMU_INBOUND_MSG0_FLUSH,
IOPMU_INBOUND_MSG0_SHUTDOWN,
IOPMU_INBOUND_MSG0_STOP_BACKGROUND_TASK,
IOPMU_INBOUND_MSG0_START_BACKGROUND_TASK,
IOPMU_INBOUND_MSG0_MAX = 0xff,
/* iop-to-host messages */
IOPMU_OUTBOUND_MSG0_REGISTER_DEVICE_0 = 0x100,
IOPMU_OUTBOUND_MSG0_REGISTER_DEVICE_MAX = 0x1ff,
IOPMU_OUTBOUND_MSG0_UNREGISTER_DEVICE_0 = 0x200,
IOPMU_OUTBOUND_MSG0_UNREGISTER_DEVICE_MAX = 0x2ff,
IOPMU_OUTBOUND_MSG0_REVALIDATE_DEVICE_0 = 0x300,
IOPMU_OUTBOUND_MSG0_REVALIDATE_DEVICE_MAX = 0x3ff,
};
struct hpt_iop_request_header
{
__le32 size;
__le32 type;
__le32 flags;
__le32 result;
__le32 context; /* host context */
__le32 context_hi32;
};
#define IOP_REQUEST_FLAG_SYNC_REQUEST 1
#define IOP_REQUEST_FLAG_BIST_REQUEST 2
#define IOP_REQUEST_FLAG_REMAPPED 4
#define IOP_REQUEST_FLAG_OUTPUT_CONTEXT 8
enum hpt_iop_request_type {
IOP_REQUEST_TYPE_GET_CONFIG = 0,
IOP_REQUEST_TYPE_SET_CONFIG,
IOP_REQUEST_TYPE_BLOCK_COMMAND,
IOP_REQUEST_TYPE_SCSI_COMMAND,
IOP_REQUEST_TYPE_IOCTL_COMMAND,
IOP_REQUEST_TYPE_MAX
};
enum hpt_iop_result_type {
IOP_RESULT_PENDING = 0,
IOP_RESULT_SUCCESS,
IOP_RESULT_FAIL,
IOP_RESULT_BUSY,
IOP_RESULT_RESET,
IOP_RESULT_INVALID_REQUEST,
IOP_RESULT_BAD_TARGET,
IOP_RESULT_MODE_SENSE_CHECK_CONDITION,
};
struct hpt_iop_request_get_config
{
struct hpt_iop_request_header header;
__le32 interface_version;
__le32 firmware_version;
__le32 max_requests;
__le32 request_size;
__le32 max_sg_count;
__le32 data_transfer_length;
__le32 alignment_mask;
__le32 max_devices;
__le32 sdram_size;
};
struct hpt_iop_request_set_config
{
struct hpt_iop_request_header header;
__le32 iop_id;
__le32 vbus_id;
__le32 reserve[6];
};
struct hpt_iopsg
{
__le32 size;
__le32 eot; /* non-zero: end of table */
__le64 pci_address;
};
struct hpt_iop_request_block_command
{
struct hpt_iop_request_header header;
u8 channel;
u8 target;
u8 lun;
u8 pad1;
__le16 command; /* IOP_BLOCK_COMMAND_{READ,WRITE} */
__le16 sectors;
__le64 lba;
struct hpt_iopsg sg_list[1];
};
#define IOP_BLOCK_COMMAND_READ 1
#define IOP_BLOCK_COMMAND_WRITE 2
#define IOP_BLOCK_COMMAND_VERIFY 3
#define IOP_BLOCK_COMMAND_FLUSH 4
#define IOP_BLOCK_COMMAND_SHUTDOWN 5
struct hpt_iop_request_scsi_command
{
struct hpt_iop_request_header header;
u8 channel;
u8 target;
u8 lun;
u8 pad1;
u8 cdb[16];
__le32 dataxfer_length;
struct hpt_iopsg sg_list[1];
};
struct hpt_iop_request_ioctl_command
{
struct hpt_iop_request_header header;
__le32 ioctl_code;
__le32 inbuf_size;
__le32 outbuf_size;
__le32 bytes_returned;
u8 buf[1];
/* out data should be put at buf[(inbuf_size+3)&~3] */
};
#define HPTIOP_MAX_REQUESTS 256u
struct hptiop_request {
struct hptiop_request * next;
void * req_virt;
u32 req_shifted_phy;
struct scsi_cmnd * scp;
int index;
};
struct hpt_scsi_pointer {
int mapped;
int sgcnt;
dma_addr_t dma_handle;
};
#define HPT_SCP(scp) ((struct hpt_scsi_pointer *)&(scp)->SCp)
struct hptiop_hba {
struct hpt_iopmu __iomem * iop;
struct Scsi_Host * host;
struct pci_dev * pcidev;
struct list_head link;
/* IOP config info */
u32 firmware_version;
u32 sdram_size;
u32 max_devices;
u32 max_requests;
u32 max_request_size;
u32 max_sg_descriptors;
u32 req_size; /* host-allocated request buffer size */
int initialized;
int msg_done;
struct hptiop_request * req_list;
struct hptiop_request reqs[HPTIOP_MAX_REQUESTS];
/* used to free allocated dma area */
void * dma_coherent;
dma_addr_t dma_coherent_handle;
atomic_t reset_count;
atomic_t resetting;
wait_queue_head_t reset_wq;
wait_queue_head_t ioctl_wq;
};
struct hpt_ioctl_k
{
struct hptiop_hba * hba;
u32 ioctl_code;
u32 inbuf_size;
u32 outbuf_size;
void * inbuf;
void * outbuf;
u32 * bytes_returned;
void (*done)(struct hpt_ioctl_k *);
int result; /* HPT_IOCTL_RESULT_ */
};
#define HPT_IOCTL_RESULT_OK 0
#define HPT_IOCTL_RESULT_FAILED (-1)
#if 0
#define dprintk(fmt, args...) do { printk(fmt, ##args); } while(0)
#else
#define dprintk(fmt, args...)
#endif
#endif
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