/* ******************************************************************************* ** O.S : Linux ** FILE NAME : arcmsr.h ** BY : Nick Cheng ** Description: SCSI RAID Device Driver for ** ARECA RAID Host adapter ******************************************************************************* ** Copyright (C) 2002 - 2005, Areca Technology Corporation All rights reserved. ** ** Web site: www.areca.com.tw ** E-mail: support@areca.com.tw ** ** This program is free software; you can redistribute it and/or modify ** it under the terms of the GNU General Public License version 2 as ** published by the Free Software Foundation. ** 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. ******************************************************************************* ** Redistribution and use in source and binary forms, with or without ** modification, are permitted provided that the following conditions ** are met: ** 1. Redistributions of source code must retain the above copyright ** notice, this list of conditions and the following disclaimer. ** 2. Redistributions in binary form must reproduce the above copyright ** notice, this list of conditions and the following disclaimer in the ** documentation and/or other materials provided with the distribution. ** 3. The name of the author may not be used to endorse or promote products ** derived from this software without specific prior written permission. ** ** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR ** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES ** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. ** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, ** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES(INCLUDING, BUT ** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION)HOWEVER CAUSED AND ON ANY ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT **(INCLUDING NEGLIGENCE OR OTHERWISE)ARISING IN ANY WAY OUT OF THE USE OF ** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. ******************************************************************************* */ #include struct device_attribute; /*The limit of outstanding scsi command that firmware can handle*/ #define ARCMSR_MAX_FREECCB_NUM 1024 #define ARCMSR_MAX_OUTSTANDING_CMD 1024 #define ARCMSR_DEFAULT_OUTSTANDING_CMD 128 #define ARCMSR_MIN_OUTSTANDING_CMD 32 #define ARCMSR_DRIVER_VERSION "v1.30.00.22-20151126" #define ARCMSR_SCSI_INITIATOR_ID 255 #define ARCMSR_MAX_XFER_SECTORS 512 #define ARCMSR_MAX_XFER_SECTORS_B 4096 #define ARCMSR_MAX_XFER_SECTORS_C 304 #define ARCMSR_MAX_TARGETID 17 #define ARCMSR_MAX_TARGETLUN 8 #define ARCMSR_MAX_CMD_PERLUN 128 #define ARCMSR_DEFAULT_CMD_PERLUN 32 #define ARCMSR_MIN_CMD_PERLUN 1 #define ARCMSR_MAX_QBUFFER 4096 #define ARCMSR_DEFAULT_SG_ENTRIES 38 #define ARCMSR_MAX_HBB_POSTQUEUE 264 #define ARCMSR_MAX_ARC1214_POSTQUEUE 256 #define ARCMSR_MAX_ARC1214_DONEQUEUE 257 #define ARCMSR_MAX_HBE_DONEQUEUE 512 #define ARCMSR_MAX_XFER_LEN 0x26000 /* 152K */ #define ARCMSR_CDB_SG_PAGE_LENGTH 256 #define ARCMST_NUM_MSIX_VECTORS 4 #ifndef PCI_DEVICE_ID_ARECA_1880 #define PCI_DEVICE_ID_ARECA_1880 0x1880 #endif #ifndef PCI_DEVICE_ID_ARECA_1214 #define PCI_DEVICE_ID_ARECA_1214 0x1214 #endif #ifndef PCI_DEVICE_ID_ARECA_1203 #define PCI_DEVICE_ID_ARECA_1203 0x1203 #endif #ifndef PCI_DEVICE_ID_ARECA_1884 #define PCI_DEVICE_ID_ARECA_1884 0x1884 #endif /* ********************************************************************************** ** ********************************************************************************** */ #define ARC_SUCCESS 0 #define ARC_FAILURE 1 /* ******************************************************************************* ** split 64bits dma addressing ******************************************************************************* */ #define dma_addr_hi32(addr) (uint32_t) ((addr>>16)>>16) #define dma_addr_lo32(addr) (uint32_t) (addr & 0xffffffff) /* ******************************************************************************* ** MESSAGE CONTROL CODE ******************************************************************************* */ struct CMD_MESSAGE { uint32_t HeaderLength; uint8_t Signature[8]; uint32_t Timeout; uint32_t ControlCode; uint32_t ReturnCode; uint32_t Length; }; /* ******************************************************************************* ** IOP Message Transfer Data for user space ******************************************************************************* */ #define ARCMSR_API_DATA_BUFLEN 1032 struct CMD_MESSAGE_FIELD { struct CMD_MESSAGE cmdmessage; uint8_t messagedatabuffer[ARCMSR_API_DATA_BUFLEN]; }; /* IOP message transfer */ #define ARCMSR_MESSAGE_FAIL 0x0001 /* DeviceType */ #define ARECA_SATA_RAID 0x90000000 /* FunctionCode */ #define FUNCTION_READ_RQBUFFER 0x0801 #define FUNCTION_WRITE_WQBUFFER 0x0802 #define FUNCTION_CLEAR_RQBUFFER 0x0803 #define FUNCTION_CLEAR_WQBUFFER 0x0804 #define FUNCTION_CLEAR_ALLQBUFFER 0x0805 #define FUNCTION_RETURN_CODE_3F 0x0806 #define FUNCTION_SAY_HELLO 0x0807 #define FUNCTION_SAY_GOODBYE 0x0808 #define FUNCTION_FLUSH_ADAPTER_CACHE 0x0809 #define FUNCTION_GET_FIRMWARE_STATUS 0x080A #define FUNCTION_HARDWARE_RESET 0x080B /* ARECA IO CONTROL CODE*/ #define ARCMSR_MESSAGE_READ_RQBUFFER \ ARECA_SATA_RAID | FUNCTION_READ_RQBUFFER #define ARCMSR_MESSAGE_WRITE_WQBUFFER \ ARECA_SATA_RAID | FUNCTION_WRITE_WQBUFFER #define ARCMSR_MESSAGE_CLEAR_RQBUFFER \ ARECA_SATA_RAID | FUNCTION_CLEAR_RQBUFFER #define ARCMSR_MESSAGE_CLEAR_WQBUFFER \ ARECA_SATA_RAID | FUNCTION_CLEAR_WQBUFFER #define ARCMSR_MESSAGE_CLEAR_ALLQBUFFER \ ARECA_SATA_RAID | FUNCTION_CLEAR_ALLQBUFFER #define ARCMSR_MESSAGE_RETURN_CODE_3F \ ARECA_SATA_RAID | FUNCTION_RETURN_CODE_3F #define ARCMSR_MESSAGE_SAY_HELLO \ ARECA_SATA_RAID | FUNCTION_SAY_HELLO #define ARCMSR_MESSAGE_SAY_GOODBYE \ ARECA_SATA_RAID | FUNCTION_SAY_GOODBYE #define ARCMSR_MESSAGE_FLUSH_ADAPTER_CACHE \ ARECA_SATA_RAID | FUNCTION_FLUSH_ADAPTER_CACHE /* ARECA IOCTL ReturnCode */ #define ARCMSR_MESSAGE_RETURNCODE_OK 0x00000001 #define ARCMSR_MESSAGE_RETURNCODE_ERROR 0x00000006 #define ARCMSR_MESSAGE_RETURNCODE_3F 0x0000003F #define ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON 0x00000088 /* ************************************************************* ** structure for holding DMA address data ************************************************************* */ #define IS_DMA64 (sizeof(dma_addr_t) == 8) #define IS_SG64_ADDR 0x01000000 /* bit24 */ struct SG32ENTRY { __le32 length; __le32 address; }__attribute__ ((packed)); struct SG64ENTRY { __le32 length; __le32 address; __le32 addresshigh; }__attribute__ ((packed)); /* ******************************************************************** ** Q Buffer of IOP Message Transfer ******************************************************************** */ struct QBUFFER { uint32_t data_len; uint8_t data[124]; }; /* ******************************************************************************* ** FIRMWARE INFO for Intel IOP R 80331 processor (Type A) ******************************************************************************* */ struct FIRMWARE_INFO { uint32_t signature; /*0, 00-03*/ uint32_t request_len; /*1, 04-07*/ uint32_t numbers_queue; /*2, 08-11*/ uint32_t sdram_size; /*3, 12-15*/ uint32_t ide_channels; /*4, 16-19*/ char vendor[40]; /*5, 20-59*/ char model[8]; /*15, 60-67*/ char firmware_ver[16]; /*17, 68-83*/ char device_map[16]; /*21, 84-99*/ uint32_t cfgVersion; /*25,100-103 Added for checking of new firmware capability*/ uint8_t cfgSerial[16]; /*26,104-119*/ uint32_t cfgPicStatus; /*30,120-123*/ }; /* signature of set and get firmware config */ #define ARCMSR_SIGNATURE_GET_CONFIG 0x87974060 #define ARCMSR_SIGNATURE_SET_CONFIG 0x87974063 /* message code of inbound message register */ #define ARCMSR_INBOUND_MESG0_NOP 0x00000000 #define ARCMSR_INBOUND_MESG0_GET_CONFIG 0x00000001 #define ARCMSR_INBOUND_MESG0_SET_CONFIG 0x00000002 #define ARCMSR_INBOUND_MESG0_ABORT_CMD 0x00000003 #define ARCMSR_INBOUND_MESG0_STOP_BGRB 0x00000004 #define ARCMSR_INBOUND_MESG0_FLUSH_CACHE 0x00000005 #define ARCMSR_INBOUND_MESG0_START_BGRB 0x00000006 #define ARCMSR_INBOUND_MESG0_CHK331PENDING 0x00000007 #define ARCMSR_INBOUND_MESG0_SYNC_TIMER 0x00000008 /* doorbell interrupt generator */ #define ARCMSR_INBOUND_DRIVER_DATA_WRITE_OK 0x00000001 #define ARCMSR_INBOUND_DRIVER_DATA_READ_OK 0x00000002 #define ARCMSR_OUTBOUND_IOP331_DATA_WRITE_OK 0x00000001 #define ARCMSR_OUTBOUND_IOP331_DATA_READ_OK 0x00000002 /* ccb areca cdb flag */ #define ARCMSR_CCBPOST_FLAG_SGL_BSIZE 0x80000000 #define ARCMSR_CCBPOST_FLAG_IAM_BIOS 0x40000000 #define ARCMSR_CCBREPLY_FLAG_IAM_BIOS 0x40000000 #define ARCMSR_CCBREPLY_FLAG_ERROR_MODE0 0x10000000 #define ARCMSR_CCBREPLY_FLAG_ERROR_MODE1 0x00000001 /* outbound firmware ok */ #define ARCMSR_OUTBOUND_MESG1_FIRMWARE_OK 0x80000000 /* ARC-1680 Bus Reset*/ #define ARCMSR_ARC1680_BUS_RESET 0x00000003 /* ARC-1880 Bus Reset*/ #define ARCMSR_ARC1880_RESET_ADAPTER 0x00000024 #define ARCMSR_ARC1880_DiagWrite_ENABLE 0x00000080 /* ************************************************************************ ** SPEC. for Areca Type B adapter ************************************************************************ */ /* ARECA HBB COMMAND for its FIRMWARE */ /* window of "instruction flags" from driver to iop */ #define ARCMSR_DRV2IOP_DOORBELL 0x00020400 #define ARCMSR_DRV2IOP_DOORBELL_MASK 0x00020404 /* window of "instruction flags" from iop to driver */ #define ARCMSR_IOP2DRV_DOORBELL 0x00020408 #define ARCMSR_IOP2DRV_DOORBELL_MASK 0x0002040C /* window of "instruction flags" from iop to driver */ #define ARCMSR_IOP2DRV_DOORBELL_1203 0x00021870 #define ARCMSR_IOP2DRV_DOORBELL_MASK_1203 0x00021874 /* window of "instruction flags" from driver to iop */ #define ARCMSR_DRV2IOP_DOORBELL_1203 0x00021878 #define ARCMSR_DRV2IOP_DOORBELL_MASK_1203 0x0002187C /* ARECA FLAG LANGUAGE */ /* ioctl transfer */ #define ARCMSR_IOP2DRV_DATA_WRITE_OK 0x00000001 /* ioctl transfer */ #define ARCMSR_IOP2DRV_DATA_READ_OK 0x00000002 #define ARCMSR_IOP2DRV_CDB_DONE 0x00000004 #define ARCMSR_IOP2DRV_MESSAGE_CMD_DONE 0x00000008 #define ARCMSR_DOORBELL_HANDLE_INT 0x0000000F #define ARCMSR_DOORBELL_INT_CLEAR_PATTERN 0xFF00FFF0 #define ARCMSR_MESSAGE_INT_CLEAR_PATTERN 0xFF00FFF7 /* (ARCMSR_INBOUND_MESG0_GET_CONFIG<<16)|ARCMSR_DRV2IOP_MESSAGE_CMD_POSTED) */ #define ARCMSR_MESSAGE_GET_CONFIG 0x00010008 /* (ARCMSR_INBOUND_MESG0_SET_CONFIG<<16)|ARCMSR_DRV2IOP_MESSAGE_CMD_POSTED) */ #define ARCMSR_MESSAGE_SET_CONFIG 0x00020008 /* (ARCMSR_INBOUND_MESG0_ABORT_CMD<<16)|ARCMSR_DRV2IOP_MESSAGE_CMD_POSTED) */ #define ARCMSR_MESSAGE_ABORT_CMD 0x00030008 /* (ARCMSR_INBOUND_MESG0_STOP_BGRB<<16)|ARCMSR_DRV2IOP_MESSAGE_CMD_POSTED) */ #define ARCMSR_MESSAGE_STOP_BGRB 0x00040008 /* (ARCMSR_INBOUND_MESG0_FLUSH_CACHE<<16)|ARCMSR_DRV2IOP_MESSAGE_CMD_POSTED) */ #define ARCMSR_MESSAGE_FLUSH_CACHE 0x00050008 /* (ARCMSR_INBOUND_MESG0_START_BGRB<<16)|ARCMSR_DRV2IOP_MESSAGE_CMD_POSTED) */ #define ARCMSR_MESSAGE_START_BGRB 0x00060008 #define ARCMSR_MESSAGE_START_DRIVER_MODE 0x000E0008 #define ARCMSR_MESSAGE_SET_POST_WINDOW 0x000F0008 #define ARCMSR_MESSAGE_ACTIVE_EOI_MODE 0x00100008 /* ARCMSR_OUTBOUND_MESG1_FIRMWARE_OK */ #define ARCMSR_MESSAGE_FIRMWARE_OK 0x80000000 /* ioctl transfer */ #define ARCMSR_DRV2IOP_DATA_WRITE_OK 0x00000001 /* ioctl transfer */ #define ARCMSR_DRV2IOP_DATA_READ_OK 0x00000002 #define ARCMSR_DRV2IOP_CDB_POSTED 0x00000004 #define ARCMSR_DRV2IOP_MESSAGE_CMD_POSTED 0x00000008 #define ARCMSR_DRV2IOP_END_OF_INTERRUPT 0x00000010 /* data tunnel buffer between user space program and its firmware */ /* user space data to iop 128bytes */ #define ARCMSR_MESSAGE_WBUFFER 0x0000fe00 /* iop data to user space 128bytes */ #define ARCMSR_MESSAGE_RBUFFER 0x0000ff00 /* iop message_rwbuffer for message command */ #define ARCMSR_MESSAGE_RWBUFFER 0x0000fa00 #define MEM_BASE0(x) (u32 __iomem *)((unsigned long)acb->mem_base0 + x) #define MEM_BASE1(x) (u32 __iomem *)((unsigned long)acb->mem_base1 + x) /* ************************************************************************ ** SPEC. for Areca HBC adapter ************************************************************************ */ #define ARCMSR_HBC_ISR_THROTTLING_LEVEL 12 #define ARCMSR_HBC_ISR_MAX_DONE_QUEUE 20 /* Host Interrupt Mask */ #define ARCMSR_HBCMU_UTILITY_A_ISR_MASK 0x00000001 /* When clear, the Utility_A interrupt routes to the host.*/ #define ARCMSR_HBCMU_OUTBOUND_DOORBELL_ISR_MASK 0x00000004 /* When clear, the General Outbound Doorbell interrupt routes to the host.*/ #define ARCMSR_HBCMU_OUTBOUND_POSTQUEUE_ISR_MASK 0x00000008 /* When clear, the Outbound Post List FIFO Not Empty interrupt routes to the host.*/ #define ARCMSR_HBCMU_ALL_INTMASKENABLE 0x0000000D /* disable all ISR */ /* Host Interrupt Status */ #define ARCMSR_HBCMU_UTILITY_A_ISR 0x00000001 /* ** Set when the Utility_A Interrupt bit is set in the Outbound Doorbell Register. ** It clears by writing a 1 to the Utility_A bit in the Outbound Doorbell Clear Register or through automatic clearing (if enabled). */ #define ARCMSR_HBCMU_OUTBOUND_DOORBELL_ISR 0x00000004 /* ** Set if Outbound Doorbell register bits 30:1 have a non-zero ** value. This bit clears only when Outbound Doorbell bits ** 30:1 are ALL clear. Only a write to the Outbound Doorbell ** Clear register clears bits in the Outbound Doorbell register. */ #define ARCMSR_HBCMU_OUTBOUND_POSTQUEUE_ISR 0x00000008 /* ** Set whenever the Outbound Post List Producer/Consumer ** Register (FIFO) is not empty. It clears when the Outbound ** Post List FIFO is empty. */ #define ARCMSR_HBCMU_SAS_ALL_INT 0x00000010 /* ** This bit indicates a SAS interrupt from a source external to ** the PCIe core. This bit is not maskable. */ /* DoorBell*/ #define ARCMSR_HBCMU_DRV2IOP_DATA_WRITE_OK 0x00000002 #define ARCMSR_HBCMU_DRV2IOP_DATA_READ_OK 0x00000004 /*inbound message 0 ready*/ #define ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE 0x00000008 /*more than 12 request completed in a time*/ #define ARCMSR_HBCMU_DRV2IOP_POSTQUEUE_THROTTLING 0x00000010 #define ARCMSR_HBCMU_IOP2DRV_DATA_WRITE_OK 0x00000002 /*outbound DATA WRITE isr door bell clear*/ #define ARCMSR_HBCMU_IOP2DRV_DATA_WRITE_DOORBELL_CLEAR 0x00000002 #define ARCMSR_HBCMU_IOP2DRV_DATA_READ_OK 0x00000004 /*outbound DATA READ isr door bell clear*/ #define ARCMSR_HBCMU_IOP2DRV_DATA_READ_DOORBELL_CLEAR 0x00000004 /*outbound message 0 ready*/ #define ARCMSR_HBCMU_IOP2DRV_MESSAGE_CMD_DONE 0x00000008 /*outbound message cmd isr door bell clear*/ #define ARCMSR_HBCMU_IOP2DRV_MESSAGE_CMD_DONE_DOORBELL_CLEAR 0x00000008 /*ARCMSR_HBAMU_MESSAGE_FIRMWARE_OK*/ #define ARCMSR_HBCMU_MESSAGE_FIRMWARE_OK 0x80000000 /* ******************************************************************************* ** SPEC. for Areca Type D adapter ******************************************************************************* */ #define ARCMSR_ARC1214_CHIP_ID 0x00004 #define ARCMSR_ARC1214_CPU_MEMORY_CONFIGURATION 0x00008 #define ARCMSR_ARC1214_I2_HOST_INTERRUPT_MASK 0x00034 #define ARCMSR_ARC1214_SAMPLE_RESET 0x00100 #define ARCMSR_ARC1214_RESET_REQUEST 0x00108 #define ARCMSR_ARC1214_MAIN_INTERRUPT_STATUS 0x00200 #define ARCMSR_ARC1214_PCIE_F0_INTERRUPT_ENABLE 0x0020C #define ARCMSR_ARC1214_INBOUND_MESSAGE0 0x00400 #define ARCMSR_ARC1214_INBOUND_MESSAGE1 0x00404 #define ARCMSR_ARC1214_OUTBOUND_MESSAGE0 0x00420 #define ARCMSR_ARC1214_OUTBOUND_MESSAGE1 0x00424 #define ARCMSR_ARC1214_INBOUND_DOORBELL 0x00460 #define ARCMSR_ARC1214_OUTBOUND_DOORBELL 0x00480 #define ARCMSR_ARC1214_OUTBOUND_DOORBELL_ENABLE 0x00484 #define ARCMSR_ARC1214_INBOUND_LIST_BASE_LOW 0x01000 #define ARCMSR_ARC1214_INBOUND_LIST_BASE_HIGH 0x01004 #define ARCMSR_ARC1214_INBOUND_LIST_WRITE_POINTER 0x01018 #define ARCMSR_ARC1214_OUTBOUND_LIST_BASE_LOW 0x01060 #define ARCMSR_ARC1214_OUTBOUND_LIST_BASE_HIGH 0x01064 #define ARCMSR_ARC1214_OUTBOUND_LIST_COPY_POINTER 0x0106C #define ARCMSR_ARC1214_OUTBOUND_LIST_READ_POINTER 0x01070 #define ARCMSR_ARC1214_OUTBOUND_INTERRUPT_CAUSE 0x01088 #define ARCMSR_ARC1214_OUTBOUND_INTERRUPT_ENABLE 0x0108C #define ARCMSR_ARC1214_MESSAGE_WBUFFER 0x02000 #define ARCMSR_ARC1214_MESSAGE_RBUFFER 0x02100 #define ARCMSR_ARC1214_MESSAGE_RWBUFFER 0x02200 /* Host Interrupt Mask */ #define ARCMSR_ARC1214_ALL_INT_ENABLE 0x00001010 #define ARCMSR_ARC1214_ALL_INT_DISABLE 0x00000000 /* Host Interrupt Status */ #define ARCMSR_ARC1214_OUTBOUND_DOORBELL_ISR 0x00001000 #define ARCMSR_ARC1214_OUTBOUND_POSTQUEUE_ISR 0x00000010 /* DoorBell*/ #define ARCMSR_ARC1214_DRV2IOP_DATA_IN_READY 0x00000001 #define ARCMSR_ARC1214_DRV2IOP_DATA_OUT_READ 0x00000002 /*inbound message 0 ready*/ #define ARCMSR_ARC1214_IOP2DRV_DATA_WRITE_OK 0x00000001 /*outbound DATA WRITE isr door bell clear*/ #define ARCMSR_ARC1214_IOP2DRV_DATA_READ_OK 0x00000002 /*outbound message 0 ready*/ #define ARCMSR_ARC1214_IOP2DRV_MESSAGE_CMD_DONE 0x02000000 /*outbound message cmd isr door bell clear*/ /*ARCMSR_HBAMU_MESSAGE_FIRMWARE_OK*/ #define ARCMSR_ARC1214_MESSAGE_FIRMWARE_OK 0x80000000 #define ARCMSR_ARC1214_OUTBOUND_LIST_INTERRUPT_CLEAR 0x00000001 /* ******************************************************************************* ** SPEC. for Areca Type E adapter ******************************************************************************* */ #define ARCMSR_SIGNATURE_1884 0x188417D3 #define ARCMSR_HBEMU_DRV2IOP_DATA_WRITE_OK 0x00000002 #define ARCMSR_HBEMU_DRV2IOP_DATA_READ_OK 0x00000004 #define ARCMSR_HBEMU_DRV2IOP_MESSAGE_CMD_DONE 0x00000008 #define ARCMSR_HBEMU_IOP2DRV_DATA_WRITE_OK 0x00000002 #define ARCMSR_HBEMU_IOP2DRV_DATA_READ_OK 0x00000004 #define ARCMSR_HBEMU_IOP2DRV_MESSAGE_CMD_DONE 0x00000008 #define ARCMSR_HBEMU_MESSAGE_FIRMWARE_OK 0x80000000 #define ARCMSR_HBEMU_OUTBOUND_DOORBELL_ISR 0x00000001 #define ARCMSR_HBEMU_OUTBOUND_POSTQUEUE_ISR 0x00000008 #define ARCMSR_HBEMU_ALL_INTMASKENABLE 0x00000009 /* ARC-1884 doorbell sync */ #define ARCMSR_HBEMU_DOORBELL_SYNC 0x100 #define ARCMSR_ARC188X_RESET_ADAPTER 0x00000004 #define ARCMSR_ARC1884_DiagWrite_ENABLE 0x00000080 /* ******************************************************************************* ** ARECA SCSI COMMAND DESCRIPTOR BLOCK size 0x1F8 (504) ******************************************************************************* */ struct ARCMSR_CDB { uint8_t Bus; uint8_t TargetID; uint8_t LUN; uint8_t Function; uint8_t CdbLength; uint8_t sgcount; uint8_t Flags; #define ARCMSR_CDB_FLAG_SGL_BSIZE 0x01 #define ARCMSR_CDB_FLAG_BIOS 0x02 #define ARCMSR_CDB_FLAG_WRITE 0x04 #define ARCMSR_CDB_FLAG_SIMPLEQ 0x00 #define ARCMSR_CDB_FLAG_HEADQ 0x08 #define ARCMSR_CDB_FLAG_ORDEREDQ 0x10 uint8_t msgPages; uint32_t msgContext; uint32_t DataLength; uint8_t Cdb[16]; uint8_t DeviceStatus; #define ARCMSR_DEV_CHECK_CONDITION 0x02 #define ARCMSR_DEV_SELECT_TIMEOUT 0xF0 #define ARCMSR_DEV_ABORTED 0xF1 #define ARCMSR_DEV_INIT_FAIL 0xF2 uint8_t SenseData[15]; union { struct SG32ENTRY sg32entry[1]; struct SG64ENTRY sg64entry[1]; } u; }; /* ******************************************************************************* ** Messaging Unit (MU) of the Intel R 80331 I/O processor(Type A) and Type B processor ******************************************************************************* */ struct MessageUnit_A { uint32_t resrved0[4]; /*0000 000F*/ uint32_t inbound_msgaddr0; /*0010 0013*/ uint32_t inbound_msgaddr1; /*0014 0017*/ uint32_t outbound_msgaddr0; /*0018 001B*/ uint32_t outbound_msgaddr1; /*001C 001F*/ uint32_t inbound_doorbell; /*0020 0023*/ uint32_t inbound_intstatus; /*0024 0027*/ uint32_t inbound_intmask; /*0028 002B*/ uint32_t outbound_doorbell; /*002C 002F*/ uint32_t outbound_intstatus; /*0030 0033*/ uint32_t outbound_intmask; /*0034 0037*/ uint32_t reserved1[2]; /*0038 003F*/ uint32_t inbound_queueport; /*0040 0043*/ uint32_t outbound_queueport; /*0044 0047*/ uint32_t reserved2[2]; /*0048 004F*/ uint32_t reserved3[492]; /*0050 07FF 492*/ uint32_t reserved4[128]; /*0800 09FF 128*/ uint32_t message_rwbuffer[256]; /*0a00 0DFF 256*/ uint32_t message_wbuffer[32]; /*0E00 0E7F 32*/ uint32_t reserved5[32]; /*0E80 0EFF 32*/ uint32_t message_rbuffer[32]; /*0F00 0F7F 32*/ uint32_t reserved6[32]; /*0F80 0FFF 32*/ }; struct MessageUnit_B { uint32_t post_qbuffer[ARCMSR_MAX_HBB_POSTQUEUE]; uint32_t done_qbuffer[ARCMSR_MAX_HBB_POSTQUEUE]; uint32_t postq_index; uint32_t doneq_index; uint32_t __iomem *drv2iop_doorbell; uint32_t __iomem *drv2iop_doorbell_mask; uint32_t __iomem *iop2drv_doorbell; uint32_t __iomem *iop2drv_doorbell_mask; uint32_t __iomem *message_rwbuffer; uint32_t __iomem *message_wbuffer; uint32_t __iomem *message_rbuffer; }; /* ********************************************************************* ** LSI ********************************************************************* */ struct MessageUnit_C{ uint32_t message_unit_status; /*0000 0003*/ uint32_t slave_error_attribute; /*0004 0007*/ uint32_t slave_error_address; /*0008 000B*/ uint32_t posted_outbound_doorbell; /*000C 000F*/ uint32_t master_error_attribute; /*0010 0013*/ uint32_t master_error_address_low; /*0014 0017*/ uint32_t master_error_address_high; /*0018 001B*/ uint32_t hcb_size; /*001C 001F*/ uint32_t inbound_doorbell; /*0020 0023*/ uint32_t diagnostic_rw_data; /*0024 0027*/ uint32_t diagnostic_rw_address_low; /*0028 002B*/ uint32_t diagnostic_rw_address_high; /*002C 002F*/ uint32_t host_int_status; /*0030 0033*/ uint32_t host_int_mask; /*0034 0037*/ uint32_t dcr_data; /*0038 003B*/ uint32_t dcr_address; /*003C 003F*/ uint32_t inbound_queueport; /*0040 0043*/ uint32_t outbound_queueport; /*0044 0047*/ uint32_t hcb_pci_address_low; /*0048 004B*/ uint32_t hcb_pci_address_high; /*004C 004F*/ uint32_t iop_int_status; /*0050 0053*/ uint32_t iop_int_mask; /*0054 0057*/ uint32_t iop_inbound_queue_port; /*0058 005B*/ uint32_t iop_outbound_queue_port; /*005C 005F*/ uint32_t inbound_free_list_index; /*0060 0063*/ uint32_t inbound_post_list_index; /*0064 0067*/ uint32_t outbound_free_list_index; /*0068 006B*/ uint32_t outbound_post_list_index; /*006C 006F*/ uint32_t inbound_doorbell_clear; /*0070 0073*/ uint32_t i2o_message_unit_control; /*0074 0077*/ uint32_t last_used_message_source_address_low; /*0078 007B*/ uint32_t last_used_message_source_address_high; /*007C 007F*/ uint32_t pull_mode_data_byte_count[4]; /*0080 008F*/ uint32_t message_dest_address_index; /*0090 0093*/ uint32_t done_queue_not_empty_int_counter_timer; /*0094 0097*/ uint32_t utility_A_int_counter_timer; /*0098 009B*/ uint32_t outbound_doorbell; /*009C 009F*/ uint32_t outbound_doorbell_clear; /*00A0 00A3*/ uint32_t message_source_address_index; /*00A4 00A7*/ uint32_t message_done_queue_index; /*00A8 00AB*/ uint32_t reserved0; /*00AC 00AF*/ uint32_t inbound_msgaddr0; /*00B0 00B3*/ uint32_t inbound_msgaddr1; /*00B4 00B7*/ uint32_t outbound_msgaddr0; /*00B8 00BB*/ uint32_t outbound_msgaddr1; /*00BC 00BF*/ uint32_t inbound_queueport_low; /*00C0 00C3*/ uint32_t inbound_queueport_high; /*00C4 00C7*/ uint32_t outbound_queueport_low; /*00C8 00CB*/ uint32_t outbound_queueport_high; /*00CC 00CF*/ uint32_t iop_inbound_queue_port_low; /*00D0 00D3*/ uint32_t iop_inbound_queue_port_high; /*00D4 00D7*/ uint32_t iop_outbound_queue_port_low; /*00D8 00DB*/ uint32_t iop_outbound_queue_port_high; /*00DC 00DF*/ uint32_t message_dest_queue_port_low; /*00E0 00E3*/ uint32_t message_dest_queue_port_high; /*00E4 00E7*/ uint32_t last_used_message_dest_address_low; /*00E8 00EB*/ uint32_t last_used_message_dest_address_high; /*00EC 00EF*/ uint32_t message_done_queue_base_address_low; /*00F0 00F3*/ uint32_t message_done_queue_base_address_high; /*00F4 00F7*/ uint32_t host_diagnostic; /*00F8 00FB*/ uint32_t write_sequence; /*00FC 00FF*/ uint32_t reserved1[34]; /*0100 0187*/ uint32_t reserved2[1950]; /*0188 1FFF*/ uint32_t message_wbuffer[32]; /*2000 207F*/ uint32_t reserved3[32]; /*2080 20FF*/ uint32_t message_rbuffer[32]; /*2100 217F*/ uint32_t reserved4[32]; /*2180 21FF*/ uint32_t msgcode_rwbuffer[256]; /*2200 23FF*/ }; /* ********************************************************************* ** Messaging Unit (MU) of Type D processor ********************************************************************* */ struct InBound_SRB { uint32_t addressLow; /* pointer to SRB block */ uint32_t addressHigh; uint32_t length; /* in DWORDs */ uint32_t reserved0; }; struct OutBound_SRB { uint32_t addressLow; /* pointer to SRB block */ uint32_t addressHigh; }; struct MessageUnit_D { struct InBound_SRB post_qbuffer[ARCMSR_MAX_ARC1214_POSTQUEUE]; volatile struct OutBound_SRB done_qbuffer[ARCMSR_MAX_ARC1214_DONEQUEUE]; u16 postq_index; volatile u16 doneq_index; u32 __iomem *chip_id; /* 0x00004 */ u32 __iomem *cpu_mem_config; /* 0x00008 */ u32 __iomem *i2o_host_interrupt_mask; /* 0x00034 */ u32 __iomem *sample_at_reset; /* 0x00100 */ u32 __iomem *reset_request; /* 0x00108 */ u32 __iomem *host_int_status; /* 0x00200 */ u32 __iomem *pcief0_int_enable; /* 0x0020C */ u32 __iomem *inbound_msgaddr0; /* 0x00400 */ u32 __iomem *inbound_msgaddr1; /* 0x00404 */ u32 __iomem *outbound_msgaddr0; /* 0x00420 */ u32 __iomem *outbound_msgaddr1; /* 0x00424 */ u32 __iomem *inbound_doorbell; /* 0x00460 */ u32 __iomem *outbound_doorbell; /* 0x00480 */ u32 __iomem *outbound_doorbell_enable; /* 0x00484 */ u32 __iomem *inboundlist_base_low; /* 0x01000 */ u32 __iomem *inboundlist_base_high; /* 0x01004 */ u32 __iomem *inboundlist_write_pointer; /* 0x01018 */ u32 __iomem *outboundlist_base_low; /* 0x01060 */ u32 __iomem *outboundlist_base_high; /* 0x01064 */ u32 __iomem *outboundlist_copy_pointer; /* 0x0106C */ u32 __iomem *outboundlist_read_pointer; /* 0x01070 0x01072 */ u32 __iomem *outboundlist_interrupt_cause; /* 0x1088 */ u32 __iomem *outboundlist_interrupt_enable; /* 0x108C */ u32 __iomem *message_wbuffer; /* 0x2000 */ u32 __iomem *message_rbuffer; /* 0x2100 */ u32 __iomem *msgcode_rwbuffer; /* 0x2200 */ }; /* ********************************************************************* ** Messaging Unit (MU) of Type E processor(LSI) ********************************************************************* */ struct MessageUnit_E{ uint32_t iobound_doorbell; /*0000 0003*/ uint32_t write_sequence_3xxx; /*0004 0007*/ uint32_t host_diagnostic_3xxx; /*0008 000B*/ uint32_t posted_outbound_doorbell; /*000C 000F*/ uint32_t master_error_attribute; /*0010 0013*/ uint32_t master_error_address_low; /*0014 0017*/ uint32_t master_error_address_high; /*0018 001B*/ uint32_t hcb_size; /*001C 001F*/ uint32_t inbound_doorbell; /*0020 0023*/ uint32_t diagnostic_rw_data; /*0024 0027*/ uint32_t diagnostic_rw_address_low; /*0028 002B*/ uint32_t diagnostic_rw_address_high; /*002C 002F*/ uint32_t host_int_status; /*0030 0033*/ uint32_t host_int_mask; /*0034 0037*/ uint32_t dcr_data; /*0038 003B*/ uint32_t dcr_address; /*003C 003F*/ uint32_t inbound_queueport; /*0040 0043*/ uint32_t outbound_queueport; /*0044 0047*/ uint32_t hcb_pci_address_low; /*0048 004B*/ uint32_t hcb_pci_address_high; /*004C 004F*/ uint32_t iop_int_status; /*0050 0053*/ uint32_t iop_int_mask; /*0054 0057*/ uint32_t iop_inbound_queue_port; /*0058 005B*/ uint32_t iop_outbound_queue_port; /*005C 005F*/ uint32_t inbound_free_list_index; /*0060 0063*/ uint32_t inbound_post_list_index; /*0064 0067*/ uint32_t reply_post_producer_index; /*0068 006B*/ uint32_t reply_post_consumer_index; /*006C 006F*/ uint32_t inbound_doorbell_clear; /*0070 0073*/ uint32_t i2o_message_unit_control; /*0074 0077*/ uint32_t last_used_message_source_address_low; /*0078 007B*/ uint32_t last_used_message_source_address_high; /*007C 007F*/ uint32_t pull_mode_data_byte_count[4]; /*0080 008F*/ uint32_t message_dest_address_index; /*0090 0093*/ uint32_t done_queue_not_empty_int_counter_timer; /*0094 0097*/ uint32_t utility_A_int_counter_timer; /*0098 009B*/ uint32_t outbound_doorbell; /*009C 009F*/ uint32_t outbound_doorbell_clear; /*00A0 00A3*/ uint32_t message_source_address_index; /*00A4 00A7*/ uint32_t message_done_queue_index; /*00A8 00AB*/ uint32_t reserved0; /*00AC 00AF*/ uint32_t inbound_msgaddr0; /*00B0 00B3*/ uint32_t inbound_msgaddr1; /*00B4 00B7*/ uint32_t outbound_msgaddr0; /*00B8 00BB*/ uint32_t outbound_msgaddr1; /*00BC 00BF*/ uint32_t inbound_queueport_low; /*00C0 00C3*/ uint32_t inbound_queueport_high; /*00C4 00C7*/ uint32_t outbound_queueport_low; /*00C8 00CB*/ uint32_t outbound_queueport_high; /*00CC 00CF*/ uint32_t iop_inbound_queue_port_low; /*00D0 00D3*/ uint32_t iop_inbound_queue_port_high; /*00D4 00D7*/ uint32_t iop_outbound_queue_port_low; /*00D8 00DB*/ uint32_t iop_outbound_queue_port_high; /*00DC 00DF*/ uint32_t message_dest_queue_port_low; /*00E0 00E3*/ uint32_t message_dest_queue_port_high; /*00E4 00E7*/ uint32_t last_used_message_dest_address_low; /*00E8 00EB*/ uint32_t last_used_message_dest_address_high; /*00EC 00EF*/ uint32_t message_done_queue_base_address_low; /*00F0 00F3*/ uint32_t message_done_queue_base_address_high; /*00F4 00F7*/ uint32_t host_diagnostic; /*00F8 00FB*/ uint32_t write_sequence; /*00FC 00FF*/ uint32_t reserved1[34]; /*0100 0187*/ uint32_t reserved2[1950]; /*0188 1FFF*/ uint32_t message_wbuffer[32]; /*2000 207F*/ uint32_t reserved3[32]; /*2080 20FF*/ uint32_t message_rbuffer[32]; /*2100 217F*/ uint32_t reserved4[32]; /*2180 21FF*/ uint32_t msgcode_rwbuffer[256]; /*2200 23FF*/ }; typedef struct deliver_completeQ { uint16_t cmdFlag; uint16_t cmdSMID; uint16_t cmdLMID; // reserved (0) uint16_t cmdFlag2; // reserved (0) } DeliverQ, CompletionQ, *pDeliver_Q, *pCompletion_Q; /* ******************************************************************************* ** Adapter Control Block ******************************************************************************* */ struct AdapterControlBlock { uint32_t adapter_type; /* adapter A,B..... */ #define ACB_ADAPTER_TYPE_A 0x00000000 /* hba I IOP */ #define ACB_ADAPTER_TYPE_B 0x00000001 /* hbb M IOP */ #define ACB_ADAPTER_TYPE_C 0x00000002 /* hbc L IOP */ #define ACB_ADAPTER_TYPE_D 0x00000003 /* hbd M IOP */ #define ACB_ADAPTER_TYPE_E 0x00000004 /* hba L IOP */ u32 roundup_ccbsize; struct pci_dev * pdev; struct Scsi_Host * host; unsigned long vir2phy_offset; /* Offset is used in making arc cdb physical to virtual calculations */ uint32_t outbound_int_enable; uint32_t cdb_phyaddr_hi32; uint32_t reg_mu_acc_handle0; spinlock_t eh_lock; spinlock_t ccblist_lock; spinlock_t postq_lock; spinlock_t doneq_lock; spinlock_t rqbuffer_lock; spinlock_t wqbuffer_lock; union { struct MessageUnit_A __iomem *pmuA; struct MessageUnit_B *pmuB; struct MessageUnit_C __iomem *pmuC; struct MessageUnit_D *pmuD; struct MessageUnit_E __iomem *pmuE; }; /* message unit ATU inbound base address0 */ void __iomem *mem_base0; void __iomem *mem_base1; uint32_t acb_flags; u16 dev_id; uint8_t adapter_index; #define ACB_F_SCSISTOPADAPTER 0x0001 #define ACB_F_MSG_STOP_BGRB 0x0002 /* stop RAID background rebuild */ #define ACB_F_MSG_START_BGRB 0x0004 /* stop RAID background rebuild */ #define ACB_F_IOPDATA_OVERFLOW 0x0008 /* iop message data rqbuffer overflow */ #define ACB_F_MESSAGE_WQBUFFER_CLEARED 0x0010 /* message clear wqbuffer */ #define ACB_F_MESSAGE_RQBUFFER_CLEARED 0x0020 /* message clear rqbuffer */ #define ACB_F_MESSAGE_WQBUFFER_READED 0x0040 #define ACB_F_BUS_RESET 0x0080 #define ACB_F_BUS_HANG_ON 0x0800/* need hardware reset bus */ #define ACB_F_IOP_INITED 0x0100 /* iop init */ #define ACB_F_ABORT 0x0200 #define ACB_F_FIRMWARE_TRAP 0x0400 #define ACB_F_MSG_GET_CONFIG 0x1000 struct CommandControlBlock * pccb_pool[ARCMSR_MAX_FREECCB_NUM]; /* used for memory free */ struct list_head ccb_free_list; /* head of free ccb list */ atomic_t ccboutstandingcount; /*The present outstanding command number that in the IOP that waiting for being handled by FW*/ void * dma_coherent; /* dma_coherent used for memory free */ dma_addr_t dma_coherent_handle; /* dma_coherent_handle used for memory free */ dma_addr_t dma_coherent_handle2; void *dma_coherent2; unsigned int uncache_size; uint8_t rqbuffer[ARCMSR_MAX_QBUFFER]; /* data collection buffer for read from 80331 */ int32_t rqbuf_getIndex; /* first of read buffer */ int32_t rqbuf_putIndex; /* last of read buffer */ uint8_t wqbuffer[ARCMSR_MAX_QBUFFER]; /* data collection buffer for write to 80331 */ int32_t wqbuf_getIndex; /* first of write buffer */ int32_t wqbuf_putIndex; /* last of write buffer */ uint8_t devstate[ARCMSR_MAX_TARGETID][ARCMSR_MAX_TARGETLUN]; /* id0 ..... id15, lun0...lun7 */ #define ARECA_RAID_GONE 0x55 #define ARECA_RAID_GOOD 0xaa uint32_t num_resets; uint32_t num_aborts; uint32_t signature; uint32_t firm_request_len; uint32_t firm_numbers_queue; uint32_t firm_sdram_size; uint32_t firm_hd_channels; uint32_t firm_cfg_version; char firm_model[12]; char firm_version[20]; char device_map[20]; /*21,84-99*/ struct work_struct arcmsr_do_message_isr_bh; struct timer_list eternal_timer; unsigned short fw_flag; #define FW_NORMAL 0x0000 #define FW_BOG 0x0001 #define FW_DEADLOCK 0x0010 atomic_t rq_map_token; atomic_t ante_token_value; uint32_t maxOutstanding; int vector_count; uint32_t maxFreeCCB; uint32_t doneq_index; uint32_t ccbsize; uint32_t in_doorbell; uint32_t out_doorbell; uint32_t completionQ_entry; pCompletion_Q pCompletionQ; };/* HW_DEVICE_EXTENSION */ /* ******************************************************************************* ** Command Control Block ** this CCB length must be 32 bytes boundary ******************************************************************************* */ struct CommandControlBlock{ /*x32:sizeof struct_CCB=(32+60)byte, x64:sizeof struct_CCB=(64+60)byte*/ struct list_head list; /*x32: 8byte, x64: 16byte*/ struct scsi_cmnd *pcmd; /*8 bytes pointer of linux scsi command */ struct AdapterControlBlock *acb; /*x32: 4byte, x64: 8byte*/ uint32_t cdb_phyaddr; /*x32: 4byte, x64: 4byte*/ uint32_t arc_cdb_size; /*x32:4byte,x64:4byte*/ uint16_t ccb_flags; /*x32: 2byte, x64: 2byte*/ #define CCB_FLAG_READ 0x0000 #define CCB_FLAG_WRITE 0x0001 #define CCB_FLAG_ERROR 0x0002 #define CCB_FLAG_FLUSHCACHE 0x0004 #define CCB_FLAG_MASTER_ABORTED 0x0008 uint16_t startdone; /*x32:2byte,x32:2byte*/ #define ARCMSR_CCB_DONE 0x0000 #define ARCMSR_CCB_START 0x55AA #define ARCMSR_CCB_ABORTED 0xAA55 #define ARCMSR_CCB_ILLEGAL 0xFFFF uint32_t smid; #if BITS_PER_LONG == 64 /* ======================512+64 bytes======================== */ uint32_t reserved[4]; /*16 byte*/ #else /* ======================512+32 bytes======================== */ // uint32_t reserved; /*4 byte*/ #endif /* ======================================================= */ struct ARCMSR_CDB arcmsr_cdb; }; /* ******************************************************************************* ** ARECA SCSI sense data ******************************************************************************* */ struct SENSE_DATA { uint8_t ErrorCode:7; #define SCSI_SENSE_CURRENT_ERRORS 0x70 #define SCSI_SENSE_DEFERRED_ERRORS 0x71 uint8_t Valid:1; uint8_t SegmentNumber; uint8_t SenseKey:4; uint8_t Reserved:1; uint8_t IncorrectLength:1; uint8_t EndOfMedia:1; uint8_t FileMark:1; uint8_t Information[4]; uint8_t AdditionalSenseLength; uint8_t CommandSpecificInformation[4]; uint8_t AdditionalSenseCode; uint8_t AdditionalSenseCodeQualifier; uint8_t FieldReplaceableUnitCode; uint8_t SenseKeySpecific[3]; }; /* ******************************************************************************* ** Outbound Interrupt Status Register - OISR ******************************************************************************* */ #define ARCMSR_MU_OUTBOUND_INTERRUPT_STATUS_REG 0x30 #define ARCMSR_MU_OUTBOUND_PCI_INT 0x10 #define ARCMSR_MU_OUTBOUND_POSTQUEUE_INT 0x08 #define ARCMSR_MU_OUTBOUND_DOORBELL_INT 0x04 #define ARCMSR_MU_OUTBOUND_MESSAGE1_INT 0x02 #define ARCMSR_MU_OUTBOUND_MESSAGE0_INT 0x01 #define ARCMSR_MU_OUTBOUND_HANDLE_INT \ (ARCMSR_MU_OUTBOUND_MESSAGE0_INT \ |ARCMSR_MU_OUTBOUND_MESSAGE1_INT \ |ARCMSR_MU_OUTBOUND_DOORBELL_INT \ |ARCMSR_MU_OUTBOUND_POSTQUEUE_INT \ |ARCMSR_MU_OUTBOUND_PCI_INT) /* ******************************************************************************* ** Outbound Interrupt Mask Register - OIMR ******************************************************************************* */ #define ARCMSR_MU_OUTBOUND_INTERRUPT_MASK_REG 0x34 #define ARCMSR_MU_OUTBOUND_PCI_INTMASKENABLE 0x10 #define ARCMSR_MU_OUTBOUND_POSTQUEUE_INTMASKENABLE 0x08 #define ARCMSR_MU_OUTBOUND_DOORBELL_INTMASKENABLE 0x04 #define ARCMSR_MU_OUTBOUND_MESSAGE1_INTMASKENABLE 0x02 #define ARCMSR_MU_OUTBOUND_MESSAGE0_INTMASKENABLE 0x01 #define ARCMSR_MU_OUTBOUND_ALL_INTMASKENABLE 0x1F extern void arcmsr_write_ioctldata2iop(struct AdapterControlBlock *); extern uint32_t arcmsr_Read_iop_rqbuffer_data(struct AdapterControlBlock *, struct QBUFFER __iomem *); extern void arcmsr_clear_iop2drv_rqueue_buffer(struct AdapterControlBlock *); extern struct QBUFFER __iomem *arcmsr_get_iop_rqbuffer(struct AdapterControlBlock *); extern struct device_attribute *arcmsr_host_attrs[]; extern int arcmsr_alloc_sysfs_attr(struct AdapterControlBlock *); void arcmsr_free_sysfs_attr(struct AdapterControlBlock *acb);