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linux-next/drivers/scsi/hptiop.h
HighPoint Linux Team 3bfc13c239 [SCSI] hptiop: Add RR44xx adapter support 
Most code changes were made to support RR44xx adapters.
- add more PCI device ID.
- using PCI BAR[2] to access RR44xx IOP.
- using PCI BAR[0] to check and clear RR44xx IRQ.

Signed-off-by: HighPoint Linux Team <linux@highpoint-tech.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-10-02 09:45:22 -05:00

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/*
* HighPoint RR3xxx/4xxx controller driver for Linux
* Copyright (C) 2006-2009 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_
struct hpt_iopmu_itl {
__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_QUEUE_REQUEST_SIZE_BIT 0x40000000
#define IOPMU_QUEUE_REQUEST_RESULT_BIT 0x40000000
#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
#define MVIOP_QUEUE_LEN 512
struct hpt_iopmu_mv {
__le32 inbound_head;
__le32 inbound_tail;
__le32 outbound_head;
__le32 outbound_tail;
__le32 inbound_msg;
__le32 outbound_msg;
__le32 reserve[10];
__le64 inbound_q[MVIOP_QUEUE_LEN];
__le64 outbound_q[MVIOP_QUEUE_LEN];
};
struct hpt_iopmv_regs {
__le32 reserved[0x20400 / 4];
__le32 inbound_doorbell;
__le32 inbound_intmask;
__le32 outbound_doorbell;
__le32 outbound_intmask;
};
#define MVIOP_MU_QUEUE_ADDR_HOST_MASK (~(0x1full))
#define MVIOP_MU_QUEUE_ADDR_HOST_BIT 4
#define MVIOP_MU_QUEUE_ADDR_IOP_HIGH32 0xffffffff
#define MVIOP_MU_QUEUE_REQUEST_RESULT_BIT 1
#define MVIOP_MU_QUEUE_REQUEST_RETURN_CONTEXT 2
#define MVIOP_MU_INBOUND_INT_MSG 1
#define MVIOP_MU_INBOUND_INT_POSTQUEUE 2
#define MVIOP_MU_OUTBOUND_INT_MSG 1
#define MVIOP_MU_OUTBOUND_INT_POSTQUEUE 2
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_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;
__le16 vbus_id;
__le16 max_host_request_size;
__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 hptiop_adapter_ops *ops;
union {
struct {
struct hpt_iopmu_itl __iomem *iop;
void __iomem *plx;
} itl;
struct {
struct hpt_iopmv_regs *regs;
struct hpt_iopmu_mv __iomem *mu;
void *internal_req;
dma_addr_t internal_req_phy;
} mv;
} u;
struct Scsi_Host *host;
struct pci_dev *pcidev;
/* IOP config info */
u32 interface_version;
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 */
u32 iopintf_v2: 1;
u32 initialized: 1;
u32 msg_done: 1;
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_ */
};
struct hptiop_adapter_ops {
int (*iop_wait_ready)(struct hptiop_hba *hba, u32 millisec);
int (*internal_memalloc)(struct hptiop_hba *hba);
int (*internal_memfree)(struct hptiop_hba *hba);
int (*map_pci_bar)(struct hptiop_hba *hba);
void (*unmap_pci_bar)(struct hptiop_hba *hba);
void (*enable_intr)(struct hptiop_hba *hba);
void (*disable_intr)(struct hptiop_hba *hba);
int (*get_config)(struct hptiop_hba *hba,
struct hpt_iop_request_get_config *config);
int (*set_config)(struct hptiop_hba *hba,
struct hpt_iop_request_set_config *config);
int (*iop_intr)(struct hptiop_hba *hba);
void (*post_msg)(struct hptiop_hba *hba, u32 msg);
void (*post_req)(struct hptiop_hba *hba, struct hptiop_request *_req);
};
#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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